JPH01500203A - Electrical coating equipment and methods - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Electric coating device 6 and method Technical field The present invention provides an electrical coating device and a method for supplying current to each electrical coating cell of the device. The present invention relates to an apparatus and a method for doing so.

Background technology British Patent No. 2,085,471 describes a cell for electrophoretically coating cans. . The cell consists of a hollow body surrounding the can, an upper lid that closes the cell, and a cell a mandrel which is placed within the can and which is positioned so that the can is held with the mouth facing downward; Contains one can held in equidistant relation inside the cell and outside the mandrel. When a potential difference is applied to the mandrel, the cells of the electrophoretic coating material move away from the mandrel. As it moves into the can, the coating material is deposited on the inside of the can.

British Patent No. 2,085,922 applies a series of pulsed currents to an electrical coating cell and its sink into a can surrounded by cells.

rcN thereby describes the gradual electrophoretic coating of cans. The device rotates once Turntable, multiple cells arranged around the circumference of the turntable, 3 and turns Each cell contains two split slip rings held in a table. are electrically connected at corresponding parts of the slip ring. 6 Asahi of the fixed brush is a circle It cooperates with two slip rings at circumferentially spaced positions. each set of brushes When the turntable rotates, each cell is in turn filled with a predetermined duration. Supply pulsed current. Therefore, the turntable rotates and each cell is When passing through a set of rays, a voltage is applied to the cell by a series of timed current pulses. Add.

To avoid sparks between adjacent slip ring segments, The pulses are spaced apart by spacers, and each current pulse is connected to a slip ring. Current only begins to flow after the segment is fully in contact with the brush set and the current is always brushed. at a predetermined time to stop before the set and the segment lose full contact. Adjusted to be continuous.

Once the duration of each pulse of current is determined, the time interval between such current pulses is The speed of movement of the lip ring segment from one set of brushes to the next is depending on the speed at which the slip ring moves through the set.

Maximum speed is obtained when the turntable is at its highest speed. Therefore, the turntable Determine the maximum speed of the electric current pulse or the duration of the current pulse to temporarily stop the electrical coating process. The time interval for stopping is short.

On the other hand, when the turntable speed is slow, the slip ring segment moves TLtR in just a short time.

flows. Therefore, when the turntable speed is slow, the difference between successive pulse currents is The time is quite long during which the electrocoating process is stopped.

The inventor of the present invention provides that <a) between pulses during which the electrical coating process is temporarily stopped; time, because to some extent the electrical resistance of the deposited coating material increases with time. , the rate at which coating material is further deposited during the next pulse for a given voltage decreases and (b) the speed of the turntable is slower than the speed of the turntable with prior art devices. The observation is that the weight of the coating material reaches the desired value more quickly in the fast case. being done.

The present invention provides that (a) each current pulse can be (b) the length of time during which the electrical coating process is temporarily stopped is minimal. and (b) the speed of the electrocoating equipment is dependent on the performance of the electrocoating process for each cell. TA immediately to match the speed of other machines on the single can production line without adverse effects. The purpose is to provide a device that can do the following.

Disclosure of invention According to one aspect of the invention, an electrocoating device for electrocoating a container comprises: A turret that moves multiple cells, each supporting a container, each segment supporting a cell Operationally sustained time-divided slip rings, and slip rings or rotations. As it rotates, each segment sequentially contacts and sends a current pulse to the associated cell and container. Multiple blocks apply voltage to successive slip ring segments to Including Rashi, the device is.

The switch device recognizes the first complete contact between the brush and the segment and then The switch device must be maintained until it is about to lose full contact with the brush or segment. voltage, so nearly the entire length of each segment is at all turret speeds. used to conduct current and characterized by the minimum interval between cell currents .

The present invention also includes: Applied to the method of supplying electrical coating current to electrical coating cells. The method is explained below.

Other aspects of the invention are described herein below and at the end of the specification. It will become clear from the following claims.

An electric coating device, a coating method thereof, and the like, which are one embodiment of the present invention. Various modifications of the apparatus and method, all of which are in accordance with the present invention, include: ) will be described below with reference to the attached explanatory drawings.

Brief description of the drawing In the figure, FIG. 1 shows a pictorial representation of the electrical coating device, and FIG. 2(a) shows the arrangement of FIG. The plane ■-H passing through the diameter shown in Figure 1 of the turntable mounted on the Figure 2(b) shows an illustrative vertical cross-sectional view taken along the line shown in Figure 2(a). FIG. 3 shows an enlarged vertical cross-section through the diameter of a container closer Enlarged vertical section taken along the bull's radial plane ■-■ (shown in Figure 1) An illustrative diagram and several electrical sheathing containers carried on the turntable. hail the internal structure of one of the vessels, FIG. 4 shows a pictorial partial cross-section of one of the electrical coating containers; FIG. 5 shows a dual system for controlling the supply of electrical coating fluid to one of such vessels. An explanatory diagram of the structure of the fluid supply valve is shown, and FIG. 5(a) is a vertical cross-sectional view through this valve. , and 5(b) are plan views of this valve, and FIG. 6 shows the arrangement shown in FIG. It shows the structure of the slip ring brush device assembly that constitutes the upper part of the a) is a pictorial partial sectional view of the assembly, and FIG. 6(b) is a pictorial partial sectional view of the assembly. A local plan view of a pair of turntable rotation detection sensors attached, and a sixth (C) The figure shows the attached turntable reference position detection sensor of the assembly. 7 shows a vertical cross-sectional view of the structure of the slip ring and brush assembly of FIG. FIG. 7(a) is a vertical cross-sectional explanatory view of the structure, and FIG. 7(a) shows the slip ring support portion of the assembly; and FIG. 7(b) shows the slip in combination with the brush device support portion of the assembly. FIG. 8 shows the ring support portions respectively, and FIG. Arrangement and external pictorial details of input and output devices, No. 8 (Fig. 81 below Fig. 1). 8(b) and 8(b) respectively show a plan view of the feeding device, and FIG. Figure 9 further explains the main parts shown in Figure 8, and Figure 9(a) shows the main parts shown in Figure 8. A pictorial illustration of the input and delivery device, and FIG. 9(b) shows the TaB! A horizontal pictorial diagram is shown for each, and Figure 1O shows the diameter of the feeding device. The structure and mode of operation of the delivery device shown in Figure 8, taken along the plane of Shown in cross section, Figure 11 is the same as that shown in Figure 8, taken along a plane passing through the diameter of the delivery device. The structure and mode of action of the delivery device are shown in vertical section, FIG. 12 shows the construction of one of several can gripper assemblies mounted on a delivery device. , Figures 10(a) to 10(b1) show each state that is obvious from each figure. and FIG. 13 is a diagrammatic, vertical cross-sectional view through the diameter of one half of the turntable. , and the flow path of the electrical sheathing fluid that circulates within the device during operation. Figure 14 shows a diagrammatic vertical section through the diameter of one of the electrical coating vessels. In top view, and on top of which, is shown the flow rate circulating through this vessel during the electrocoating process. shows the flow path of the electrical coating fluid, Figure 15 is a diagram showing the cycle of phenomena occurring during one rotation of the turntable. , Figure 16 shows the control of electrical coating current pulses passed through each container during the coating process. shows a schematic diagram of the main electrical circuit components used; Figure 17 shows the position-related electrical coating station by rotating the turntable. The time sequence of the current pulses passed through one container as it is transported through the container. - indicates the Figure 18 shows the electrical circuit diagram of this device, and Figure 19 shows (a) the combination of FJs. (b) hardware and/or software; various electrical monitoring and control items and steps, variously implemented in The schematic diagram shown in Figure 20 is a series of graphs showing the relationship between electric coating current and time. In the rough, each graph (a)-(d) represents the duration of the time interval between successive current pulses. Each shows the adverse effects of increasing electrocoating processes.

Preferred mode of carrying out the invention In the drawings, particularly FIGS. 1 and 2, the illustrated apparatus is a rotary turntable. A stationary substructure lO” supporting a 14° drum unit or drum unit on a 12° bearing. (In this specification, a reference numeral with a ° mark indicates that the reference numeral is ), the drum unit has a cylindrical outer wall 20 upper and lower annular plates 16' divided into upper and lower sections by '.

18", a plurality of circumferentially spaced perforated radial webs 22°, and a circular and a circumferential cylindrical inner wall 24''.

The upper annular plate 16 centrally carries an upper structure 26° rotating therewith; The structure is seated on and attached to the inner circumferential portion 30'' of the upper annular plate 16. This bearing plate includes a bearing plate 28° at its lowermost part, which supports a bearing 32" in its center. , the purpose of which will be described later, and a slip ring unit 34" above it. is installed. At the top, the slip ring unit 34 has a solid bearing unit. A brush device unit 38° is carried on the knit 36°, and the brush device unit is , a fixed column 42 surrounding the slip ring unit and carried on the substructure 10 It is protected against rotational movement by a torque arm 40° that engages the 40°.

The lower annular plate 18 of the drum unit carries a ring gear 44'' on its underside; gear and the drive pinion gear 46' mesh with each other. supported on the substructure IO A gear drive motor 48' is connected to the drive pinion gear 46 and is driven by motor energization. and drive this. A surrounding member 50'' is located within the cylindrical inner wall 24 of the drum unit lO. This member is located above the stationary enclosure member 52'' and around its outer periphery. The stationary shroud 52 overlies a cylindrical fluid collection pan 54''. The fluid collection pan 54 is itself attached to the substructure 10 around it. It is carried on a free support portion 56'' formed thereon.

The fluid collection pan 54 has a plurality of fluid outlet holes 60° formed in its bottom plate 58'', Fluid collecting in the pan can drain into fluid storage tank 621. this The bottom plate 58 further supports a central collar 64'' with a port attached to the underside thereof. A pump 66° delivery vibrator is attached, and this pump pumps its water from the storage tank 62. a fluid supply arranged to draw in suction fluid and arranged vertically above it; The bottom end of the tube 68° is located.

This tube has its upper end passing through a bearing 32 supported in bearing plate 28 and This is fixed.

An upwardly extending cylindrical wall 70° extends upwardly from this bearing plate and tightly surrounds the bearing 32. The cylindrical wall is closed at its upper end by a removable cover plate 72'. and constitutes a stationary fluid distribution chamber. A series of radial holes formed in this cylindrical wall. Each end of a plurality of fluid delivery vibes 74'' is attached to the port. The flow of fluid into the tube is controlled by a stationary cylindrical baffle 76'', which A tube is attached to the upper end of the vertical supply tube 68 and attached to its cylindrical wall 78''. A graduated boat 80" is formed and sequentially predetermined rotations relative to the baffles are formed. As the drum unit 14 rotates about its vertical axis through the positions, each feed bar The flow rate of fluid to the eve 74 is varied.

The drum unit 14 is further sealed against the cylindrical wall 20 and directly externally thereof. It has an intermediate annular plate 82° carrying a vertical wall 84°. Carried on the basic structure IO A fixed cylindrical cover 86° covers the upper annular plate 16 at its upper end and its overlies the upper portion of the cooperating upright wall 84 at its lower end, thereby providing cover 86 This prevents fluid from escaping from the annular area enclosed by the annular area.

Drum unit! The upper, lower and intermediate annular plates 16, 18 and 82 of 4 Each has a group of 32 circular holes formed at intervals in the circumferential direction, 88°, 901 and and 92" (shown in Figure 2). Corresponding holes in each hole group are vertically aligned.

The upper annular plate 16 has a 96° vertical electrical coating cell in each of its holes 88. It carries the lower body part 94°.

The lower annular plate 18 has a cell closure actuator that stands vertically within each of said holes 90 thereof. 98° (hereinafter referred to as "cell closer J") A cell closing member 100'' (hereinafter referred to as ``cell lid J (c ellid) J) is supported.

The cell closer passes upward through a corresponding hole 92 formed in the intermediate plate 92, and It is positioned there by its holes, thereby allowing the cell to close by high voltage electricity. When the cell 98 is energized, the cell lid 100 contacts the lower end of the cell body portion 94. 96, thereby closing and completing the cell 96.

Each cell closer 98 has a cylinder 102° mounted on the intermediate annular plate 82. (see FIG. 2 (δ)), in which a cooperating elongated, tubular piston is formed. 104° is vertically movable. This piston has a rotary air joint 106 “, a distribution manifold mounted within the central upper portion of the slip ring unit 34. from a source (not shown) via a lead 108° and a feed pipe 110°. Pressed upward by air continuously supplied to cylinder +02 at a high constant pressure. be done.

Each cell closer cylinder 102 each has a pair of adjacent cylinders. They are joined together by connecting pipes +12. Formed like this A linked pneumatic system connects the distribution manifold 108 and the four feed Because they are connected via the vibrator 110 at four equally spaced positions on it, , all cylinders are constantly energized with a single supply of high-pressure air.

Within each cell closer 98 is a tubular piston rod 114 at its upper end that extends from the lid. The receiver is coupled to the socket plate 115'' and is also attached to the upper end of the elongated piston 104. attached and near its lower edge (furthest from the cellulid) sideways stud 1 16" and a rotary cam follower wheel 118" is carried on this stud. There is.

A protective cylindrical enclosure 119° attached at the upper end to the socket plate +15 is cylindrical. It covers around the da 104. The upper end of this cylinder has fluid shut-off for electrical sheathing. Carrying a sealing ring +20", this sealing ring cooperates with the enclosure to encircle the void. Upper ends of tubular piston 104 and tubular piston rod 114 A ventilation hole +21" is provided in the cylinder to prevent piston and piston rods from entering the cylinder. 64-500203 (6) Under the tubular piston rod 114, which communicates with the drying area of the device, when the The enclosed annular cavity (between the upper end of piston 104 and enclosure 119 aerated).

An arc-shaped cam member +22° is supported from the base structure 10, and the cam member has an intermediate annular plate. 82 and located radially adjacent the lower portion of each cell closer. Since the cell closer is attached to the base structure 10 by the drum unit 14, When rotated to and over a predetermined range of rotational positions relative to the Cooperates with and positions each cam follower wheel 118.

The vertical depth of this cam member varies gradually as follows: As the system unit rotates through the range of rotational positions, each cell closer piston The rod 114 is machined to its lowermost position (as a result of the increased depth of the cam member). (and against the biasing force provided by the high pressure air supplied to the cell closer) Next, the cam member is biased by the high pressure air supplied to the cell closer. The decreasing depth causes it to be raised again to its uppermost position.

Next, in FIGS. 3 and 4, each cell lid 100 has a circular can support plate 12. 3° and a plurality of spaced apart conductors projecting upwardly from this can support plate. The upper surface +26° of the can support plate containing the body bin 124゛ is the can electrically coated in the cell. The bin 124 is coated with a contour that closely complements the 128° bottom wall contour. is used to engage the can 128 and act as a minimal can bottom support.

Can support plate +23 is received within a recess formed at 130° of the lid support/feed member. 0 elastic sealing ring +3 held in it by a clamping ring +32° 4" is formed on each of the can support plate +23 and the tightening ring +32 surrounding it. It is mounted within an annular groove formed by opposite circular surfaces. lid The support member 130 is the upper end plate 1 of the cell closer 98 assembled with bolts. It is attached to 15.

Each cell body section 94 includes an inverted metal cup section 138', which is carried in the hole 88 formed in the upper annular plate 16 of the cam unit 14 and It is secured by a bolt passing through an integrally formed flange 140'' of the top portion 138. is attached inside. The cup part +38 is also an integral part of the upward It has a tubular extension 142''.

An assembly of electrodes 144'' is disposed within and concentrically with the cup portion +38. Retained therein only by a retaining ring 146° bolted to the lower end of the held. The electrode assembly is flanged and has a hole formed in its upper end. a central tubular electrode 148'' closed at its lower end by a closed end cap; The upper end of this electrode is connected by a thin annular insulator (152°) to allow electrical current from adjacent to the cup portion. emotionally isolated. The terminal shaft member 154° is screwed into the flange of the center electrode. , a tubular insulator 156° attached to the earthen wall of the cup portion and sealed therein. The cable eye of the 1st power supply cable 158" is attached. Ru.

A tubular insulator 160° with holes is fitted along the upper part of the cup portion +38. and surrounds the flange of the central electrode +48. carried within this tubular insulating member. and adjacent to this but electrically insulated from the center electrode flange. is a tubular can contact electrode 162'' which has an electrical coating at its lower end. receiving and electrically connecting the outwardly bent upper rim 166° of the can 128 The second terminal shaft member 1611° has a counterbore hole 164″ that provides a connection. screwed onto the top end of the tubular electrode and attached to the side wall 172'' of the cup portion 138. and extending radially outwardly through 170° of the tubular insulator sealed therein; 2 power supply cables with 174° cable eyes attached.

The 176° tubular outer electrode is a retaining ring! The outer local part 178° and and an electrically insulating spacer ring 179''. It is. The upper part of this 1ati is a tubular insulator +60 and a tubular can contact electrode! 62. Can contact electrode +62 and retaining ring +4 connected to outer electrode 176 6 Insulating washers inserted in each groove 180°,! 82° is these parts Provide electrical isolation.

A third terminal shaft member 184'' is screwed into the lower part of the outer electrode 176 and extends radially outwardly. and the cable eye of the third feed cable 186° and the bolt 190" Therefore, the connection cable 188° connected to the lower side of the can support plate 123 at its opposite end Receive cable eye.

A fluid supply tube 192° is attached to the top end of tubular extension 142 of cup portion 138. mounted and sealed therein, and this fluid supply tube is attached to its lower end. A normally closed non-returning rubber valve member 194'' is provided, and a supply vibrator 196'' is provided at its upper end. are doing. This valve member +94 indicates that the fluid pressure exceeds a value sufficient to open the valve member. Allow fluid flow from the supply vibrator 196 into the electrically coated cell only when When this fluid pressure is cut off from the supply tube 192, This prevents unnecessary flow of electrical coating liquid from the cell to the cell.

The tubular extension 142 of the cup portion 138 is near its upper end and is connected to the tubular extension +42. The low-pressure air supply vibe 202° and The non-return valve unit 200, which has a horizontal boat 198° in communication, is a circular male rubber valve. The valve member is provided with a valve member having a special specification of 1986-500203 (7) on the open conical seat. ) low pressure into the cell body portion 94 via an annular cavity seated in and surrounding the central electrode +48. Allows air flow but prevents electrical sheathing fluid from escaping from the cell body.

The lid support member 130 is attached to a boat 206° located at the center of the can support plate 123. It has a channel 204" for supplying fluid. This channel is located far from the boat 206°. It includes a vertical inlet 208 at its distal end, which inlet has a female truncated conical shape at its upper end. It forms a valve 210''.

Lid support member! 30 also carries an upright valve actuation pushrod 212''. The lid support members are such that the push bars are adjacent to each other in each pair of adjacent lid support members. are stretched in the opposite direction to prevent

The upper annular plate 16 of the drum unit 14 has a half of each pair of cell body portions 94 on its upper surface. 16 dual valve units 214'' arranged radially inward (Figs. 2 and 5) reference). Each such valve unit 214 It is connected to one of the vibrators 74.

This flow path passes through each normally closed poppet valve 218° and 220° to an outflow passage 222°, 224". Each outflow passage is connected to the combined cell body on one side. connected upwardly with said supply vibrator 196 of portion 94 and on the other hand with the drum. A downward non-return valve unit 226'', 22 located below the unit upper plate 16 It is connected downward at 8°. These non-return valves are equipped with a rubber valve member 229'', These valve members connect to the valve member +94 which closes off the lower end of the cell supply tube +92. Resilient female outlet nozzles 230@, 23 similar in structure and operation and directed downwards 2°, and each of these nozzles is said female valve seat of the combined lid support member 130 when raised to 210 to the central boat 206 of the can support plate 123. complete the flow path.

Two lid support members of the combined cell closer + push rod supported by 30 212 is each tappet 234''.

236” and these tappets depend from valve unit 2+4. and protrudes through the drum unit upper plate 16 and is pushed by each push rod 212. actuated thereby effecting actuation of each poppet valve.

Therefore, the lid support member 130 combined with the cell closer is lifted up and thereby act to close the combined cells 96, the cell closure is caused by the combined of a combined valve output nozzle (e.g. 230) to the valve seat 210 which has been Occurs simultaneously with closing and raising of the associated poppet valve (e.g. 218). From the feeding vibe 74 to the upward feeding vibe! Cell body part assembled through 96 94, thereby causing the fluid to flow into the cell to remove the present and coated can +28. The central inflow boat 2 is formed on the can support plate 123 at the same time. 06, thereby rapidly soaking the outside of the can 128.

The cell body via the fluid supply vibe 196, tube 192 and non-return valve member +94 The sheathing fluid introduced into the end cap 50 passes through the longitudinal passages formed in the end cap +50. Can coated via path 238°! 28, and if necessary, If desired, a series of After flowing into the interior of can 128 via radial passage 240 and filling the can The can contact electrode 162 and the tubular insulation surrounding it rise to the level of the cell body. Outflow from the cell body portion through radial holes 242″ formed in the upper part of the rim 160 do. This fluid then passes through an annular passageway 214 formed in cup portion 138 and and two circumferentially spaced angled outflow passages 246''. It is distributed to the sexual discharge vibe 248. Those vibrators are attached to the inner wall 2 of the drum unit 14. 0 and 24 to discharge the flow to the upper shroud 50 and from there to the collection port. 4 and the hole 60 to the storage section 62 .

Covering fluid introduced into the closed cell via the central inlet hole 206 of the can support plate 123 rises over the can +28 to the level of the upper rim 166 of the can and from there formed between the electrode +62 and the tubular insulator 160 surrounding it, and between each other. Flowing through radial and longitudinal passages 250 into corridor passage 244. 6 and 7, the slip ring unit 34 is essentially , radially spaced depending outer, inner and intermediate cylindrical walls 254,256 ．． An intermediate wall 258 is attached to an annular plate 260, including an outer annular plate 252'' having a diameter of 258. The annular plate 260 itself is mounted on the inner circumference 30 of the drum unit upper plate 16. Four equally spaced hollow, vertical plates carried on attached annular plates 263 It is mounted on the column 262°.

The annular plate 252 carries a solid bearing support disk 264'' and extends from its center into a hollow bearing shaft. 266° extends upward. The bearing sleeve 268'' has two vertically spaced carried on the bearing shaft 266 by a bearing race 270° that is It itself carries a brush device unit 38.

The bearing shaft 266 and the associated bearing sleeve 268 are connected to the solid bearing unit. The knit 36 is configured.

The outer cylindrical wall 254 has three slip ring segments 278° on its outer side. carrying vertically spaced circular members 272°, 274", 276"; The segments are identical to each other and there are electrically isolated. Permanent electrical with these slip ring segments Connections pass through this wall and electrically attach these segments in place. Wall 254 special table 1986-500203 by connecting shaft member 280'' insulated with (9) It is carried out inside. Each circular segment has 32 segments, i.e. each cell The upper circular slip ring segments 272 include one each at 96. The first supply connected to the inner electrode 148 of each cell is mounted on each connecting shaft member 280 of the cell. receiving the remote end of an electrical cable.

Intermediate circular slip ring segments 274 are located on each of their connecting shaft members 280. , each said third power supply cable connected to the outer electrodes 176 and 123 of each cell. 186 remote end.

Lower circular slip ring segments 276 are mounted on their respective connecting shaft members 280. , of each said second feed cable 174 connected to the can contact electrode 162 of each cell. He has a septum.

Vertically aligned slip ring segments in three circles are in the same cell 96 It is combined with various electrodes. 3. The feed cable connects each hollow, vertical support 262 to connect upwardly to each cell.

The brush device unit 38 has a circular shape centrally carried by a bearing sleeve 262. including a brush support plate 282°, and depending therefrom and covering a predetermined portion thereof. Thus, each of the foregoing brush supports has 16 circumferentially spaced brush support struts 284°. The pillar is equipped with an electrically insulating support member, and on which three brackets are arranged vertically. A carbon brush 286° is carried in the carbon brush 285°. slip ring segments aligned vertically by a biasing spring device (not shown). is pressed into contact with the contact. The angular pitch of the brush support struts 284 is electric. equal to the angular pitch of the covering cells 96 and therefore the slip ring segments Equal to that of.

Each brush support post 284 carries therewith three electrical terminal shaft members 288'', 2 90" and 292 degrees, and these shaft members are attached to the brush support plate 282 accordingly. is attached at a position adjacent to each brush box 285 through the At this point, the flexible fittings 287'' of each brush 286 are connected to their respective terminal shaft members. It is.

Groups of three power supply cables 294'', 296', 298'' are terminal shaft members of each group. 288.290.292 and connected to the control and monitoring device 302''. connected to the appropriate feed terminals of a controlled DC power source. this supply Power is supplied from an AC supply power system (not shown) and provides the required DC voltage. To achieve this, it is equipped with a full-wave, silic bridge rectifier circuit.

The slip ring unit 34 includes a lower, underwater cover plate 304°, which Extending radially outwardly from annular plate 260 and surrounding the periphery by brush bearing plate 282 spaced apart from an outer vertical cover plate 306'' carried vertically. .

The low pressure air supply vibes 202 of each cell 96 are connected at their upper ends to the vibe 308°. The vibrator 308 hangs from the slip ring support member 252,264 and Each upper end has a boat 31 formed around the upper peripheral plate surface 312 of the bearing plate 264. It opens at 0.

A kidney-shaped manifold 314 is located on the planar annular surface 312 and has a predetermined portion of the surface. Covers several ports 310 and prevents circumferential movement by upright column 316° and an upright post 316 is attached to the top of the manifold 314 and includes a brush support. Slidingly passes through the cover plate 318° that covers the kidney-shaped inspection opening formed in the receiving plate 282. do. A manifold 314 is carried on positioning posts 316 and below the cover plate. Close sliding contact with the planar annular surface 312 by means of a compression spring 320° located at being pressured by the situation.

A low pressure, high flow air source (not shown) is attached to the cover plate 318 and Connector 32 extends in fluid-tight sliding relationship through the reservoir of Nifold 314 4" can be connected to the manifold 314.

The inlet and outlet devices 326° and 328° are located in front of this device. These devices mesh with the ring gear 44 of the rotating drum unit 14. Driven by the unit via a ring gear 330"332".

Feeding device 8 through 10, the feeder 326 includes a series of eight can holders or or a rotating turret 3341 carrying pockets 336; are arranged at intervals around the turret, and when the drum unit rotates, Each cell closer 98 is located at a predetermined first or infeed station adjacent to the infeed device. Screw feed conveyor 33 synchronized with each cell closer 98 as it passes through It is arranged to transport each can 128 fed by 8°. turret A can can be placed in one of these can holders by means of a guide rail 340° extending half way around the can holder. from the conveyor 338 to the cell closer while being pushed along it. from the feed station to follow a predetermined arcuate path.

As shown in FIG. 10, each can holder 336 has a helical pressure in the outer can guide position. The turret on a retractable axis 342° biased by a compression spring 344" 334. This axis is a stationary, generally circular shaft within the turret. Due to the action of this biasing spring, the radius With the cam follower axis 346° biased outward in the direction, this cam surface The operator moves the can into position to place it on the cell lid and then moves it to the feed station. When moving the can holder to, through, and past the infeed station. Gradually and temporarily so that the cell lid 100 follows the trajectory of 350° little by little. It is shaped to draw you in. This allows the can holder and cellulite to The cans are moved along the same trajectory so that the cans are properly transferred and placed on the cell lid. It will be done. The guide rail 340 further moves the can into and along said trajectory 350. It is shaped as shown at 351'' for movement.

More specifically, the infeed turret 334 has a torque The reservoir of the drive shaft 502° rises from the restriction device M (not shown) through the tubular enclosure 504°. The enclosure includes an inverted cup-shaped member 500'' attached to the through the lateral support profile 506'' carrying the let mounting socket 508° in its reservoir. and extends upward. Turret support device 51 equipped with lubricating oil storage tank 512° 0° is installed in this socket. The inner wall of the lubricating oil storage tank 512 The upright tubular member 514° that constitutes this tubular member surrounds the drive shaft 502 with a gap. A rail 516'' disposed at the upper end of the member 514 distributes lubricating oil between the tubular member and the drive shaft. Prevent leakage.

The turret is a ball bearing mount carried on a transverse platform 522''. Includes a depending inner cylindrical wall 518" with a lower end rotationally supported above the base 520" are doing.

This platform rises from the oil tank and has lubrication inside the tank at its bottom. An upright intermediate cylindrical wall 5241 with holes 526° for oil circulation is fitted with screws. It is attached.

A hydraulic delivery sleeve 528° surrounds the upright tubular member 514 and extends from the inner depending wall of the turret. 518 at its upper end and has a spiral oil pumping groove 530° in its inner hole. is formed. Therefore, when the turret rotates, oil from the reservoir flows in a spiral shape. and a plurality of radial distribution ducts 532 at the upper end of the sleeve 528. ° and thence exits downwardly into the surrounding cavity through a vertical nozzle 534'. do.

The lower rim of the outer cylindrical wall 536'' of the turret has an annular groove 538'' therein. The thin upper rim of the bottom wall 540'' of the oil storage tank 512 allows the electrical coating fluid to Lubricating oil level marked 542″ extended to prevent ingress into the storage tank level to prevent oil loss between the bayonet joint between the turret and the oil tank outer wall. It is maintained at the same height.

The turret moves each can hole around its circumference at eight equally spaced locations. These holders are installed on the outside of the turret and radially aligned large holes formed in each of the inner cylindrical walls 536 and 518; 546'' and removably carried within stoma 548''.

Each can holder unit includes a slotted body portion 550°, with body portion 550 at one end. , position and secure the unit within the fixing flange 552'' and hole 546. (by means of screws not shown) and has a plug portion 556° located within the small hole 548 at the other end. There is.

A retractable shaft 342 supports a can holder 336 associated with the outer end and is slotted. Respective radially aligned bore holes 558° formed at opposite ends of barrel portion 550 , is slidably carried within 560° and carries a vertical short axis 564'' This short axis, with a central constriction of 562°, is inserted into a channel formed in the slotted barrel section. engages the slotted barrel portion through a carried slide block 567° and The cam follower shaft 346 is rotatably attached to the lower end of the cam follower shaft 346. Biasing spring 34 4 is a shoulder formed on the retractable shaft 342 and a shoulder formed on the slotted body section. It is attached around the shaft between.

The lateral platform 522 defines the circular cam 348 on its outer periphery. It has an upright wall 568° with an inward facing surface.

A sealing ring 570° is on the retractable shaft and behind the fixing flange 522. This prevents electrical sheathing fluid from entering the turret and prevents lubricating oil from entering the turret. It also prevents intrusion. An annular enclosure member in the form of a flexible bellows 572 is retracted. a tubular extension 5 disposed on the viewable shaft 342 and the fixing flange 522; 74゛ are formed on the flange, all of which serve the same purpose as above. It has been established.

Delivery device In FIGS. 9 and 11, the delivery device 328 is also connected to the rotary turret 352. °, this turret covers it and keeps it in constant position and the drum unit 1 4 to a predetermined delivery station adjacent to the delivery device. carrying a series of can grippers 354'' arranged to sequentially receive successive cans; . Each can gripper passes through this station in turn at the delivery station. Lightly grasp the can inside the cell lid 100 and take it out from there, then move it to the turret. rotates the can over 180° clockwise around its axial axis. (as seen from the can) to drain the coating fluid remaining in the can and dispose it downward. into a trough (not shown) and then transfer the cans, opening side down, to a delivery conveyor 356. °Finally, as the turret rotates, the gripper is tipped over and placed on the delivery station. position to receive the next can that may appear.　Each can The retainer 354 is a gear that engages the teeth of a vertically reciprocatable rack tooth 360''. It is carried within the turret 352 on a rotatable shaft 3581 with teeth. this The rack teeth are biased to their lowest position by compression springs 361'' and the turret a cam follower cooperating with a stationary annular cam 364'' with a cyclically varying height within the Wawa special costume Showa 64-500203 (10) 0 gripper 354, which is combined with The height of the cam below the cam follower wheel has a maximum value when the

During only the first half revolution of the turret from the delivery station, the cam is in the down position. Momentarily move the rack teeth, then during the second half-turn, shift the rack teeth to their offset. returned to the upper position. Therefore, due to such movement of the rack teeth, the combination The gripper 358 is rotated through 180 degrees so that the gripped can is (in the direction of rotation of the turret to empty the liquid in it), then the can is Return to initial position and achieve desired can gripper action during full rotation of turret. .

Each can gripper 354 has a movable jaw member 366 that is biased into a closed can gripping position. radius in contact with a stationary cam 370° containing and having a cyclically varying radius. actuated within the turret by a cam follower biased inwardly 368° . This cam and follower device (a) holds the gripper against the can in its open can holder; (b) then the turret rotates. As the gripper moves through the delivery station, the movable jaw members are gently moved. Close the can and temporarily place it on the soil, thereby gripping the can during the subsequent time and at the same time opening the can. (C) When the gripper approaches the delivery conveyor, the returns the jaw member to the open position of the conveyor, thereby ejecting the gripped can onto this conveyor. The gripper jaw members are arranged such that the gripper is gripped and The can is opened until it is held in rotational engagement with the next can carried by the holder. be kept as it is.

More specifically, the delivery turret 352 is located on the underside of the protective cap 600. A drum 602'' includes two vertically spaced, integrally formed lateral walls 60. 2', a generally cylindrical outer wall supported by 608°. externally engaged with the lateral walls 602, 608 and internally engaged with an upright tubular bearing member 614''. Rotationally supported by mating and complementary Taber bearing races 610'', 612' has been done. This bearing member is connected to the inner wall 61 of the integrally molded annular oil storage tank 618°. 6" extending upwardly, the tank has an upright outer cylindrical wall 620". The side cylindrical wall is connected to the cylindrical drum to avoid receiving electrical coating fluid from the turret. It has its upper rim extending upwardly into a groove formed in the lower rim of the wall.

An annular, turret bearing screwed to the bottom wall 624'' of the storage tank 618 Plate 622° is a turret bearing socket which is itself attached to transverse section 628”. It has a lower, spigot portion that engages within the socket 626''.

The oil pumping sleeve 6301 fits into the tubular bearing member 614, and the turret support plate 6 22 into a ball bearing race 632'' located in a recess in the oil tank bottom wall 624. Therefore, it is supported at its bottom and has a spiral oil pumping on its outer cylindrical surface. 634''.

The turret drive shaft 636° includes a tubular enclosure member 638'', a support profile 628, a bearing socket connected to the gear 322 via a jet 626 and an oil pumping sleeve 630. rising from a torque limiting device (not shown) and to an adjustable coupling device 640'. Thus, it is attached to the upper drum wall 606 by screws 644'' and It is attached to the circular drive plate 642'' of the oil pressure feeding sleeve 630. The formed tooth pattern 646° extending in the axial direction is a drive plate integrally formed with the drive plate 642. into the slot.

The lubricating oil pumped to the top of the pumping sleeve 630 (a) transfers the oil to the upper bearing race; A baffle plate 648" with vertical oil holes that direct the oil into the 610" facing downward. (b) laterally to lubricate other moving parts enclosed within the turret. Flows outward through radial passages.

The turret has each can gripping unit around its circumference at each of eight equally spaced locations. 652" is installed in the hole 654° formed in the circumferential wall 604. It is supported in a removable manner. Each can gripping unit 652 has a screw 657 including a flanged body portion 656° mounted within said hole 654 by , and an annular closure member 6581 attached thereto by screw 660'. This closure member has a ball bearing race 662 in place and the ball bearing race 662 is The rotatable shaft 358 is journal-mounted within the base. This axis is (a) Integral type received within the pinion 664° and the ball bearing race 662 (c) a grasper support projecting through said closure member 658; Member 670" includes an assembly such that all of these parts rotate together. It is attached.

A sealing ring 672° prevents lubricating oil from inside the turret and electrical power from outside the turret. placed on either side of the ball bearing race to prevent pneumatic coating fluids .

Closure member 658 and grasper support bushing 668 further prevent such fluid penetration. carries a baffle 674'' to minimize the

The flanged body portion 656 has a vertical assembly adjacent to the binion 664. a hole through which a rack tooth 360 capable of reciprocating movement passes through and meshes with the nion; The rack teeth bear bearings in the upper and lower lateral walls 606, 608 of the turret drum. Upper and lower support shafts slidably carried via bushings 680", 682" It has 676" and 678".

The upper support shaft 676 has the compression spring 361 around it, while the lower support shaft The axis is at its lower end in the transverse direction 1! f Isho 64-500203 (11) Bin 6 84° above, carries a ball bearing race 686'', the outer race member of which It consists of 362 follower wheels.

An annular cam unit 688′ is mounted on the bottom wall 624 of the oil tank 618; and has an upright cylindrical shape of 1690" of varying height, and this wall is connected to the cam follower. is located below and supports the ring 362, and thereby supports the annular cam 364. Configure.

The rack teeth and mating parts are exposed to oil falling from the radial passage 650. It is lubricated.

Rotatable shaft assembly 358 has a central bore with a pinion shaft 666 formed therein. A gripper whose axially spaced bearing surfaces can slide at 692° and 694° The gripper actuating shaft carrying actuating shaft 696' includes (a) a bearing socket at its inner end; said cam constituted by a ball bearing 698° rotatably held within 700°; carrying a follower 368 (b) at its outer end beyond the distal end of the grasper support member 670; carrying a protruding gripper activation button 702''; and (C) midway between its ends. and between opposing shoulders formed on the shaft 696 and within the bore of the pinion shaft 666. A compression spring is provided to bias the gripper actuation axis radially inward of the turret. Ru.

The cam follower ball 698 is placed in contact with the outer surface of the cam ring 706°; A cam ring 706 surrounds the central tubular bearing member 614 and is screwed into it. is attached to. This cam ring has a variable radial depth and The stationary cover actuates the combined gripper via the gripper actuation shaft 696. 370 is configured.

However, the structure of the can gripper 354 is shown in detail in FIG. The holder is removed from the turret.The can holder is removed from the turret. a gripper block 708' having a cylindrical mounting socket 710°; is adapted to engage on a plug portion 711'' formed on the gripper support member 670. 0 gripper block 708 arranged in the same manner as shown in FIG. Its support member 670 is secured by three screws 712'' seated in counterbore holes. It is arranged so that it can be attached to the top.

The front side of the gripper block holds the cans 128 that are transported and emptied by the gripper. symmetrically shaped at 714° to fit the cylindrical shape of 4 circumferentially spaced can storage surfaces spaced vertically to leave 718° It has an embossed shape in a region 7161 extending to .

The gripper block is separated by four spacer bins 724°~730''. It is sandwiched between two jaw plates 720", 722" separated from the rack. this A counterbore fixing screw 732° received in each end of the spacer bin extends through the tighten the jaw plate to the spacer bin through the gripper jaw members 36. form 6. The three bins 724-728 are similar and hold the gripper plate as long as desired. Constructs a simple butt spacer pin for joining at intervals. bottle 72 4.726 and 730 are formed in the gripper block with a considerable gap. It passes through the hole 734°. The bin 730 is (a) engaged within a recess formed in the jaw plate; a smaller diameter end portion that mates and carries a spacer ring 736'; and (b) a gripper. A solid bearing portion journal bearing in a bearing hole 740' formed in the container block. 738°, thus the jaw member 366 is gripped by the spacer pin 730. It is rotatably mounted on the holder block. The sealing ring 742@ is a spacer. Surrounding the surring 736, an electric sheathing fluid cooperates with the gripper block and jaw members. Prevents intrusion from the bearing surface.

The gripper block intersects 734 which spacer pin 724 is housed therein. A biased compression spring 746° having a first threaded bore 7441 is located within the bore. Abutting contact with spacer pin 724 by groove screw 748° being pressured by the situation. Additionally, the gripper block includes said first threaded bore 74. a second threaded bore 750° aligned with To set jaw member 366 in a biased "closed" position relative to lock 708 Adjustment stud 752° is screwed in.

The gripper block further includes an axis of a gap hole 734 that accommodates a spacer bin 726. This counterbore has a bore of 754° and a counterbore of 756° with an axis intersecting the line. A hole is provided at the top for receiving the plug portion 711 of the rotatable gripper support member 670. The socket 710 described above is configured.

Once the gripper assembly 345 is secured to the gripper support member 670, the gripper is activated. Button 702 is located adjacent to but not in contact with jaw actuation spacer bin 726 so that the jaw members are biased to the closed position dictated by the setting of adjustment stud 752. As the gripper turret rotates, the stationary cam ring 706 98.700 is cycled radially outward against the thrust of biasing spring 698 and momentarily pushing the jaw actuation button 702 into the spacer bin 726. Place the gripper jaws on the gripper block by temporarily moving the spacer bin. Temporarily open to the block.

The jaw plates 720 and 722 are shaped as shown and are each embossed. Can gripping land 758m separated from can release land 760° by area 762'' These can gripping lands have a The circumferential length of this can with these lands is slightly more than half the circumference of the can. on the can contact lands 7!8 of the gripper block so that they are in contact with the lands across It is positioned against.

The entrance to the cavity closed by gripper block 708 and jaw member 366 is , is inclined with respect to the axis of rotation of the gripper at an angle of approximately 25°, and this angle is such that the can ( a) Moving on the cell lid 100 and within the gripping part of the b1 gripper, respectively. defined according to the relative diameters of the two circular paths followed by the can when The angle of is determined by the path of the can entering the gripper at the delivery station. determined to be suitable.

For a can of a given diameter, a can with jaw member 366 in the open position is The entrance to the closed cavity has a diameter approximately 111101 greater than the diameter of the can. The can contact land 758 of the opening/closing jaw member 366 is approximately 1+ n+++ movements are sufficient for sufficient grasping and release of these cans to be performed. .

This small movement of the jaw members occurs as the can moves from the cell lid into the opened gripper. The trajectory of the can relative to the gripper is the same as the trajectory when moving from the gripper onto the delivery conveyor 356. This is possible because they are almost the same, and the gripper itself is inverted and the turret rotates. The direction of movement of the can is reversed between the movement of gripping the can and the subsequent movement of releasing the can.

In the closed position of the jaw member, the clamping force acting on the electrically coated can is extremely small. , and when a can is contacted with the can contact lands of the gripper block and jaw member. Adjustments are made to avoid damage to the newly applied coating on these cans.

When the gripper actuating shaft is actuated when the gripper is opened, the gripper is released against the gripper block 708. The accompanying movement of the holder jaw member 366 causes the can to be ejected by the can ejection tank door 60. Since the outlet pressure is applied, one can is surely moved away from the can contact land 718 and is freely moved. It falls onto the delivery conveyor. This allows when placing cans on this conveyor. Prompt release of the can is ensured.

The above-mentioned drawings and figures 15 and 19 describe the mode of operation of this device. The diagram is described below.

FIG. 15 is an illustrative plan view of the rotary turret 14 and electrical covering cell 96. It shows the various situations that occur during one revolution of the let, and describes the cycle of these situations. This will be discussed below.

Figure 19 is an explanatory diagram regarding a schematic plan view similar to Figure 15 of the turntable. 1 various electrical supply sources, monitoring and control equipment, and the aforementioned supply equipment 300 and The actuation means forming the control device 302 are shown.

In terms of operation, the turntable 14 and its combined feed and and delivery equipment 326, 328 are used in can manufacturing/processing systems of which the electrical coating equipment is a part. The pump 66 rotates in synchronization with a constant speed determined by the speed of the line. Pressure fluid for electrical coating is supplied to the central vibro 8, the combined distribution chamber To, 72 and to the cell supply valve unit 214 via the distribution pipe 74: high pressure air is Rotary supply coupling! 06, manifold +08 and feed pipe +10 is supplied to the cell-closing cylinder 102 connected via the ! 00 are all pushed upwards to their upper position: low pressure air flows into the kidney-shaped manifold. each supply pipe 202 supplied to and then temporarily connected to the lead 314; temporarily supplied with the combined non-return valve 200 and cell body portion 94, and An electrical supply 300 and associated controls for energizing each brush set. The position 302 is activated.

The can is stopped by a controlled "can stop" device 400'' (see Figure 19) (which moves the can when necessary). ), separate the cans and place them at appropriate intervals into the feeder 326. The outgoing screw-fed conveyor 338 is placed upright, i.e. with the bottom wall at its lowest position. left behind and sent out.

6 cans are guided by the can holder (or pocket) 336 of the feeding device; The pocket (a) detects the presence of can 128 within pocket 336 passing through it; a “can storage” proximity sensor 402 with the function of signaling the control device 302, and (b ) A 6-can pass attached to a particular can that is weighed before being introduced into the can stream. "Pre-weighed" can sensor 404' to signal the controller 302 when the Then pass.

As the feeding device and turntable rotate further, the 6 cans are combined into a can port. is sent to the lowered cell lid +00 in sequence by the ket 336, and then The support bins 126 reach the infeed station where they protrude from the can support plate 123. placed on top. This cell lid is lowered to an appropriate position by a stationary cam 122. Temporarily held in place.

The six cans delivered to the feed station undergo the same procedure, so the progress of only one can is rows would be followed over a typical cycle of operation of the turntable 14. .

During one revolution of the drum unit 14, each electric coating cell 96 and its combination The created part has 32 consecutive equally spaced locations or areas with respect to the substructure IO. be carried around. These positions are sequentially "Station 1", "Station 2", etc. As a reference, station l is defined as the infeed station, and this station During the process, the cans to be electrically coated are placed inside the electrically coated cell. The celery where cans are stored across three zero-order stations introduced for the purpose of A stationary cam while the pad passes! The height of 20 gradually decreases so that the combination The twisted cam follower 118 is fed to the combined cell closing cylinder 102. The pressure of compressed air is raised to close the cell lid and the assembled cell body. The section is sealed, thereby enclosing the can frontally and through the can contact electrode 116. makes electrical contact with the can and holds the can firmly on the support bin 126.

A "Cell Closed" proximity sensor 406° located adjacent to the stationary cam 122 cell closing cam follower wheel 118 is in its highest “cell closing” position as it passes. said control device arranged to detect the presence of said controller; 302, a receptacle for receiving electrocoating fluid, the cells passing through being suitably closed; It sends a signal that it is ready.

The final upward movement of the cell closure device also causes the combined push rod 212 to actuates the combined poppet valves 218, 220 of the supply valve unit 214. electrical coating fluid to the cell body portion 94 via the supply vibrator 196 and at the same time. The water is then rapidly flowed through the non-return valve units 226 and 228 to the can supply plate 123. This simultaneously completely fills can 128 with rapidly flowing electrocoating fluid. And it is soaked.

The fluid is brought into contact with one surface of the can by the ejection boat 246 and the vibrator 248. This fluid then continues to flow out of the cell and returns to the storage tank 62 and pump 66. recirculated by Station “5” and subsequent decimal group stations In this case, the flow of fluid into the cell is controlled by the flow rate into the supply vibrator 74 through the baffle 76. Since it is not obstructed by the large boat 80 installed on the cylindrical wall 78, it can be carried out at maximum flow velocity. The complete immersion condition of the 0 can, which is is reached only when the station is moved to a subsequent station such as

The flow path of the electrical coating fluid after entering the central vertical supply tube 68 is 13, where all parts surrounding this flow path are shown for clarity. They are shown with the same diagonal lines. Similarly, it passes through the electrical coating cell 96. In this case, the flow path is shown in more detail and enlarged in FIG. , the various components in fluid communication are suitably indicated by alternate hatching.

When the cell reaches, for example, station IO, it is combined with an electrical supply 300. The control/monitoring device 302 is connected to the housed can 12B and the inner and outer electrodes 148. ．． 176, 123 and its slip ring segment A slight trial 9 through the brush combined with the tation! as if applying pressure short-circuit tests (e.g. for loss of charge in a pre-filled cell) (by observation or measurement of the circuit resistance between the can and the inner and outer electrodes); and between the can 128 and either of the inner and outer electrodes 148, 176, 123. The presence or absence of a short circuit is determined from the results of the above test. This test is complete and a short circuit exists. After sending a signal to controller N302 not to do so, if controller 9302 For the cell: (a) the can is placed within the cell; and (b) the cell is properly closed. If you have already received other necessary feedback signals indicating that The coating process can now begin.

At this point, the fluid flow rate through the cell is gradually reduced to a lower value and the combined Boat connecting to cell supply pipe 74 and small diameter flow restriction boat of baffle wall 78 Keep this low value thereafter because of the juxtaposition with 80.

During the cell's progress through each of the predetermined successive stations, the Power supply source (ON-OFF! 1IIQ type Sirisk bridge rectifier circuit included) , to the vertical desired brush set combined with a particular station, thus A predetermined DC voltage is applied to the associated slip ring segment associated with this cell. Applying a pressure pulse thereby creating a DC pulse between inner electrode 148 and can 128 The coating material is passed through and electrophoretically deposited from the coating fluid onto the inside surfaces of the can.

Such pulses are connected to their slip ring segments and energized blocks, respectively. It is emitted only when complete contact is achieved with the entire contact area of the rashi, and The slip ring segments are not in full contact with the total contact area of their brushes. It will be terminated just before the end.

This ensures that the electrical sheathing current flows for the maximum possible time, and guaranteed to be interrupted for a minimum amount of time. Moreover, this Spinning sparks and arcs between energized brushes and slip ring segments Avoiding the possibility of breaking electrical contacts between them. ii of the duration of the pressure pulse; Control is by a timing circuit synchronized with the rotation of the turntable, or This can be implemented by a circuit that is responsive to the position of the turntable, and the latter is particularly preferred. Ru.

Next, in the explanatory diagram shown in FIG. The electrical control and monitoring device 302 includes: (a) the current pulses delivered to the cell during the passage of each current pulse; 372°% (b) Each pulse At the end of each pulse, the total Coulomb force delivered to the cell in all of the pulses is A totalizing device 373° for totalizing, (c) comparing this total charge with a preset reference value; and (d) the total coulomb value delivered is the preset value. Whenever the cell goes further through the remaining stations, it These include a device 376'' for inhibiting current pulses from being delivered to the cell. The required coating thickness or weight on the inner surface between It can be obtained safely, efficiently, and in a short time.

The electrical control and monitoring device 302 further provides that while current is being delivered to the cell, Signs of a short circuit condition within a cell are detected from the current and voltage delivered to the cell, and and (a) in response to this detected condition, is supplied to the cell by power supply 300. (b) erase the applied voltage as quickly as possible and A low resistance shunt regulator connected directly to the output circuit of the Sirisk bridge circuit that supplies the Output for closing the crowbar circuit 380 (hereinafter referred to as the “crowbar” circuit for convenience) Including a cell protection device 378° that emits a signal, shunt control before the supply voltage disappears. The rapid closing of the cell circuit is due to the voltage generated within the cell and therefore flowing within the cell. Rapidly reduce the current to a lower value.

A vertically aligned set of interlaced slip ring segments Complete contact with the desired vertical brush set at the second station and then remove this set. slip ring unit to determine when to break full contact with the The peripheral portion of the annular plate 252 of the ring 34 is provided with a ring corresponding to each slip ring segment. A series of equally spaced, semi-circular cuts 382° are formed. Two proximity detection The vessels 386° and 3881 are adjacent to the notched peripheral portion of the annular plate 252. It is mounted on the brush support plate 282 and has (a) the width of the brush, (b) g contact (c) the width of the air gap 389 between the slip ring segments; and (c) the width of the gap 389 between the slip ring segments. separated by a dimension determined by the maximum amount of segment movement that can occur during the response time. It is arranged as follows. The proximity detectors 386° and 388° sequentially detect the depth of cut 382°. Detects the passage, and in response, turns the switch ONJ and the switch OFF J signal to the control and monitoring equipment surface 302, thereby controlling the passage of these cuts. and thus for the front and trailing edges of each vertical brush set of brushes 386. The passage through the slip ring gap is shown.

A third stationary proximity detector 390'' is mounted on top of the slip ring carrier plate 252. This detection The detector is connected to a control and monitoring system with signals provided by two other detectors 38G. (a) The electrical sheathing current pulses supplied to each particular cell are (b) begin and end the flow correctly while proceeding through the various applications; The turntable's provides a reference signal for the control and monitoring device 302;

If the outside surface of a can, as well as the inside surface, is electrically coated during this process, , the required current to the brushes in contact with the middle circular slip ring segment 274 Application of the pulse is delayed until the cell is moved into station 7, for example. It will be done. Outer electrode! The amount of charge delivered to 76 and 123 is similarly measured and aggregated at the end of the run to electrically coat the outside surface of the can. Determine the total amount of charge previously delivered. Similarly, optional The application of further current pulses of has already been delivered at the end of the last pulse. Exceed a preset reference value suitable for the desired thickness and weight of the outer coating to which the full charge is applied. When it happens, it is suppressed.

The magnitude of the successive current pulses delivered to any particular cell varies as the coating process progresses. As time passes, it disappears, first at a relatively high rate and then gradually decreasing. The delay of the current pulse to provide the outer coating until later providing the inner coating is , a decrease in the maximum current delivered to the can-covered electrode 162, and therefore It can be seen that this has the effect of reducing the size of electrical cables and brush equipment used.

A control device similar to [372-376] controls the delay current for coating the outside surface of the can. Provided to provide pulses.

This coating process, if necessary, continues until the cell reaches station 25. You can also do so. Cell moves from this station to the next station , the stationary cam 120 begins to lower the cam follower +18 (against the biasing force of the cell closure). ), thus the cell closure piston rod 114 and its associated Start lowering the cell lid +00 and the can 128. This first descent of cellulid The movement causes the cell to open and be closed by the intermediate plate 82 and the inner and outer walls 20.34. to drain spills from around the outside of the can into a pail formed around the drum unit. can be set.

This movement is further coupled from the tappet (e.g. 234) of the cell supply valve 214. Pull apart the pushed push rod, thereby opening the assembled poppet valve (e.g. 2 18) to shut off the supply of electrical coating fluid to the cell. at the same time, The combined low pressure air supply boat 310 within the brush carrier plate 264 is a kidney-shaped manifold. 314 and along this manifold, thereby This station and a small number of other stations follow this station and the delivery station 29. While passing through the air supply pipe 202 and the non-return valve, low pressure air is passed from the manifold to the supply pipe 202 and the non-return valve 200 and into the top of the cell body section. This low pressure air supply is helps rapidly reduce the amount of fluid contained in the can, and also helps the cellulid to prepare the can for removal. When descending to a certain lower position, a position above the bin 126 of the cellulid 100, and secure the can with air sufficiently to keep it stable in contact with the bottle. Provide constant force.

At station number 29, the can gently engages the gripper 354 of the delivery device 329. removed from the cell lid, and held around by the gripper. (by rotation of delivery turret 352) about its lateral axis. ’ and dumped onto the delivery conveyor 356 with its opening facing down. Fluid remaining in the can is discharged forward before it is released.

The control and monitoring device 302 further determines whether the cell has completed its last electrical coating station. After the cell passes through each electrocoating station, all Compare the total amount of coulombs delivered to the cell by the current pulse with the B+7 set reference value. and if the total amount of coulombs does not exceed the reference value, the can is coated with the desired coating thickness. arranged to provide an "exclusion" that recognizes that the material has a thickness less than that of the There is. Such a rejection signal is sent to the rejection device 408 in juxtaposition with the delivery conveyor 356. is used to trigger the device and thereby cause the device to blow when a defective can passes. Sweep the cans from the delivery conveyor into the reject pool by blowing air through them.

Marked pre-weighed cans may also be marked as such. to the sample recovery device 410'' activated by the control device the moment the can passes by. Therefore, the spray directed in the direction of the injection is transported by air to the sample recovery station. is similarly swept from the delivery conveyor at the same time.

Another proximity sensor 412° (“can storage”) indicates that the can is being Immediately downstream from the delivery point mounted on conveyor 356 and adjacent to delivery device 328 It is arranged as follows. This sensor tells the controller 302 that the cans are deposited on the conveyor. Whenever the sensor passes through the delivery device's gripper, It provides a signal that it is loaded. Such a "can stow" signal is 44 and interrupt all current in each cell 96. used within the control unit. Checking the safety of the deposited coating and controlling device 3 02, in addition to providing a "failure" signal whenever a can fails this test. A “safety” check is conducted as each can passes through all electrocoating stations. It will be done. Such a signal can also be caused by a "reject" signal sent to the rejecter. , whereby defective can injection is carried out from the delivery conveyor at the elimination station. be done.

The controller 302 is implemented in an advantageous combination of hardware and software; and indicated by reference numerals 414°, 416” and 418° in FIG. Such shift register devices, including various shift register devices, have cells that can Along the line from one location upstream of the stop device to one location downstream of the sample station. The progress of each cell and the condition of the cans accommodated in the cell are recorded as the cell is transported.

Register 414 registers as the turntable rotates the cell through each station. A register 4!6 is stored for each cell, which records the presence/absence of a can in each cell. The total charge (digital Similarly, the register 41B marks the outside of the can stored for each cell. Total charge (in digital form) until accepted by the cell when covering the sides Each feed register has 64 stages and two proximity sensors 38. Receive shift pulses from 6 and 388 (r cell storage” and “cell empty”) It is shown as follows. One such sensor detects whether each brush set is exactly When the slip ring segment is in full contact with a moving slip ring segment, the provides a control signal to begin supplying electrical sheathing current to the The sensor detects slippage when each brush set is moving just away from contact with them. Begin subsequent interruptions of their current just before losing full contact with the ring segments Provide a control device.

In order to operate the electric sheathing device under another control mode, the control device is further Additional data shift registers similar to registers 416 and 418, respectively. 420°, 422” to coat the inside surface of the can. Calculate the amount of time each particular cell receives current as it passes through each electrical coating station. A signal is received from a device (not shown). Therefore, this register is the step in that order. The elapsed time at which each cell received a current to coat the inside surface of the can. Registers 422 also cover the exterior surface of the can, marking each total time up to The cells receive current as they pass through each electrically coated station. A signal indicating the time of arrival is received from a device (not shown). Therefore, this register is in that order. At the initial stage, the elapsed time of the current that each cell received to coat the outer surface of the can Record each total.

Therefore, determining the time to stop supplying electrical current to each cell is as follows: (a) a preset reference value that determines the desired total charge value to be delivered to each cell, or (bl) Another preset that determines the desired total elapsed time that current is flowing in each cell. It is carried out alternately on the basis of comparison with reference values. In the former case, two registers 4 The data stored in 16 and 418 is the appropriate reference value for the total charge sent (in side or outer covering), whereas in the latter case two registers 4 The data stored in 20 and 422 is the elapsed time that current has flowed through each cell. It is compared to the appropriate reference value (for inner or outer coating).

In this latter case (on a total elapsed time basis), the device ensures that each cell receives current. (at one level to achieve the desired coverage during a reference value of elapsed time) , and another reference value performed at the end of the electrocoating process (to achieve the desired coating). In comparison to the desired coulomb count to achieve required to obtain the desired weight of the coated material - less than the acceptable ron count value. It acts to eliminate coated cans when they are discovered to have been contaminated.

If desired, the can can be Immediately after being placed on the cell lid 100 at the feeding station, one or more manifold 314 and vibe 202 while passing through further stations. It can also be connected to the cell 96 via.

By inputting into the microprocessor, various rejection signals can be eliminated. Along with the identity of the cells coated with It is possible to perform an action to determine whether or not it should be replaced.

Two non-returning fluid valves in each fluid path discharging the inside and outside of the can +94 and 2 By providing 25/228, the cell is opened at the end of the electrocoating process. When the voltage is turned on, a large amount of electrocoating fluid will accumulate between these two valves and It offers the advantage of being stored for use during the pneumatic coating cycle. this This has a significant and beneficial effect on the capacity and rating of the fluid circulation pump 66. and reduce the time required to fill the cell.

Connection of cylinders +02 of all cell closed positions 98 in one ring system is the air forced out of the cylinder as it approaches the delivery station is taken in by a cylinder just about to leave the infeed station, so , the requirement for high pressure air can be minimized.

Electrical circuits and control equipment The implementation of the above-described mode of operation of the electrical circuit and control device according to the invention will now be described. Before proceeding, the conventional control technology improved by the present invention will be briefly described. .

Patent specification GB2.0g5.9228 by the applicant (with regard to its disclosure content) (in which the reader's attention is directed upwards in further detail), the can body rotates. They are sequentially housed in cells supported in a circular shape around the turntable. this The electrode system of these cells is turntaped through successive electrical coating stations. When the cells are carried around by the bull, they are electrically energized in sequence, thereby from the electrical sheathing fluid flowing in contact with the inside surfaces of each can on these inside surfaces. The electrocoating material is deposited three times in sequence.

carried by a turntable for each of those sequential stations sequentially paired slip ring segments and stationary, paired brushes. engaged as it is passed by the rotation of the turntable, thereby causing each The cell electrode system is electrically combined with a pair of slip ring segments. Then, when energized, each cell is connected in series between each segment of one of said segment pairs. When a common DC voltage is applied to three sets of brushes with their electrode systems , each cell electrode system is energized in sequence. Electronic switches placed in series with each circuit. switch allows the voltage applied to each brush pair to be switched ON or OFF independently electrical coverage within each station and cell. independent control of the system.

The synchronizer detects the six pairs of segments where the six pairs of brushes have just moved into electrical contact. Ensures that voltage is applied to the six pairs of brushes only after full contact with the .

The timing controller also determines when the turntable is rotating at its maximum speed. In this state, the voltage applied to each pair of brushes was predetermined. stopped at the end of a certain period of time , and the flow of electrical sheathing current through each pair of brushes is such that each pair of brushes is fully connected. Stops before contact is lost, creating sparks and arcs at the brush/segment interface guarantee that it will be prevented from occurring.

This form of current control results in the turntable rotating at a speed less than its maximum value. Whenever the electric sheathing current flow is complete contact between the brushes/segments is lost. is stopped prior to the moment when the current is applied, thereby causing one current pulse in the cell. The time interval between the stop of the current pulse and the start of the next current pulse is determined by decreasing the turntable speed. This will result in an increase in

This electrical cladding current control system (and reference for the actual amount of coulombs delivered) The system for removing cans that was found to be unsuitable due to the comparison with the coulomb count value is The deposition of the pneumatic coating material is carried out by keeping the duration and number of current pulses constant through each cell. Despite the fact that the sag gradually descends with the decrease in turntable speed This is known to be inconvenient, as it is known that This state is 20, in which graphs (a) to (d) represent other pulses. and cell parameter values held constant, as the current pulse duration increases. This shows the influence of

In these figures, a current pattern with constant magnitude and constant duration of 80 ssec Luz is to, 40. Different pulse times for TO and 100m5ec They are separated by an interval. As the pulse time interval increases in various instances, the electrical equation The total charge delivered to the coating cell is 11.87 to 9.7.9.1 and 8. 7 coulombs each, and the amount of deposited electrical coating material decreased from 332B to 27 2.255 and 244g+g, respectively. These figures are 33cal Obtained during coating DWI (pultrusion and deep drawing) tin beverage cans with epoxy substrate It is something.

These figures show that (a) during each current pulse, the resistance of the thin film of deposited material increases as the resistance of the can body increases; The magnitude of the current gradually decreases as it increases due to the progressively increasing coating thickness. and (b) at short time intervals, the rise in current at the beginning of each pulse is compared. However, over a longer time interval, this current rise is relatively slow. It shows that there is. This relatively gradual rise in current is due to the time interval between pulses. The longer the time, the greater the charge inside the resistor due to the increase in the resistance of the thin film deposited inside. It is believed that.

Similarly, the thin film of material deposited on the can surface during the passage of one current pulse is completely ionic species of water and gas (0 yi) that are kept in a “bare” state and dissociated during this current time interval, a rearrangement of the species within the deposited film takes place. As a result, a more resistive thin film is formed, the pulse interval increases, and the thin film is expected to become even more dense. Therefore, maintain the pulse interval as much as possible. It became clear that it should.

Furthermore, two different substrates (e.g. aluminum, tin steel) can be heated up to 30°C. Materials deposited with an anode and with a cathode (e.g. acrylic, polyester) Regarding both stell and epoxy-acrylic electrical coating materials, the above It is believed that the phenomena are equally applicable.

Therefore, as described in the fourth aspect of the present invention, the current pulse Instead, each current pulse is After full contact between the components has been established, as soon as this full contact begins to be interrupted. I was forced to continue. One suitable way to achieve this is to Detects the rotational position of the turntable and ensures complete contact between brushes/segments. A switch ON control signal is generated at the moment when this is achieved, and the continuation of this complete contact is stopped. A position detector arranged to generate a switch OFF control signal when the switch is stopped. It is to use an output device. Such detection devices can be used, for example, for electrical coatings. A series of equally spaced notches around the turntable at the angular pitch of the cells. It can include two sensors arranged to detect each passage sequentially. Wear.

Thus, one can use such a device according to the present invention to completely eliminate the brush/segment gap. The entire contact time is available, so for a given turntable speed, the pulse duration time is the maximum possible value, and the pulse interval is always the maximum possible value, and the pulse The ratio of pulse duration to interval is always constant regardless of turntable speed It is. The pulse duration varies according to the speed of the turntable and The desired deposit amount of electrical coating material is This will occur at different lengths of time depending on the cable speed.

Thus, according to another aspect of this fourth aspect of the invention, (a) each stage The amount of charge (coulombs) added to an individual cell in a station is The total charge deposited up to that cell by each current that has already passed through the cell is (b) this signal is measured and aggregated to generate a control signal; The desired amount of deposited material is repeatedly compared to a predetermined reference signal, and (c) Whenever the total charge signal exceeds this reference signal, an inhibit signal is issued; A prohibition signal is applied to a cell when it passes a subsequent station. Used to prohibit more current pulses from being sent.

This allows the desired amount of material to be deposited for a slightly longer duration at lower speeds. After a pulse with a longer duration, a pulse of longer duration will cause the inhibit signal to occur prematurely and , at higher speeds a short duration current pulse deposits the same amount of material. The speed of the turntable depends on the speed of the turntable. Satisfactorily achieved. Additionally, the flow cessation of current within any particular cell is Since it can be started at the station where the deposition has been completed, the amount of deposited material can be accurately determined over a period of time. Control is possible.

Next, the explanatory diagrams shown in FIGS. 18 and 19 will be described.

Figure 18 provides and controls the electrical sheathing current flowing through each cell of the device. Main circuits (including circuits of power supply unit 300 and control and monitoring device 302) Each ring 272-276 of slip ring segment 278 is shown as are drawn with parallel dashed lines 700'', 702'', and 704'' for simplicity. , each dashed line represents one segment 278 and cooperates with the brush 28. 6 is shown adjacent to these dashed lines.

The DC current pulse for electrical sheathing is supplied to the variable transformer 708゛ and the negative terminal 7!2. to ground, and the positive terminal 714 to twelve identical parallel connected electrical sheaths. Hybrid thyristor rectifier bridge circuit connected to circuit 716°? through 10° and is sent from a three-phase AC power source.

Such a circuit? ! 6 are connected in series, each with a "crowbar" cell short-circuit thyristor Current limiting/short circuit with its center tap connected to ground via a Sense resistor 718°, a brush in contact with the ring of slip ring segment 276. ring 286 (this ring is connected to each can 128), cans 128 and The inner electrode 148 of the electrical coating cell 96, the slip ring segment 272 A brush 286 in contact with the ring (connected to the inner electrode 148 of the cell), Electronic selector 722'' configured by iris, direct current transformer (DCCT) 7 24 , and a ground return connection 726 .

a slip ring segment 274 in contact with each cell outer electrode 176, 132; Each group of three brushes 286 in contact is connected via each similar circuit 728°. connected to ground connection 726, each similarly configured by a thyristor. including an electronic selector switch 730° and a DC transformer 732'' in series. There is.

DCCT724.732 has each "coulomb processing" device 734°, 736 °, each of which integrates (times) the combined DCCT output signal. an integrator (not shown) that performs a imparted by an electrical sheathing current flowing through the combined cell electrode system. Generates a digital "r Coulomb" signal that generates a charge.

The magnitude of the electrical sheathing current supplied to the cell determines the output voltage of variable transformer 708. Controlled by adjusting.

Sirisk rectifier bridge 710 receives control signals via control circuit 740° It is controlled in a 0N10FF manner by a bridge control circuit 738''.

The energization of each electrode system in each cell is controlled by the cell selection control circuit 746''. Determined by the presence/absence of the discharge start control signal at each output circuit 742° and 744°. by selective energization of selector thyristor switches 722 and 730 so that is achieved.

The control circuit 746 receives input control from the output circuit of each shift register 414 to 422. Upon receiving the control signal, this register is activated by the "coulomb processing" device/package 734/73. The input signal is received from 6.

Other data are from the "r Coulomb Processing" device/package 734/736, and ``Crowbar'' control circuit receives input control signals from 75° and ``excess'' current and These registers are fed through the Rover Signal Processor/Package 748°. It will be done. This processing unit 748 determines the identity of the cell in which the excess current and/or short circuit has occurred. is determined from the signals and data provided thereto and is input to shift register 414. supply

The crowbar thyristor 720 handles the excessive magnitude of electrical current. A crowbar control that receives each input signal from each tap 752 of each current limiting resistor 718. Control circuit 750°.

In the explanatory diagram of FIG. 19, the power and control circuit of FIG. 18 is shown in a different form and (a) Rotary turntable 14 and its combined electric coating cell 9 6 is shown along with a plan view of 6 and various control devices.

The digital data shift register and other data processing devices in the above diagram are , such as the processor known as the rMAc85 J processor. embedded within any suitable conventional microprocessor and each processing unit/parameter The package may be any suitable combination of hardware and software equipment. It can be configured as follows. The various components shown in this diagram are used whenever appropriate. , are given the reference numerals given to elements previously mentioned in this specification.

The above-described feed device 326, cam 348 and follower 346 support the can holder 336. The can can be retracted and positioned by the guide rail 340 without being subjected to radial pressure. However, in this case, the force is applied by the spring 344. cam 348 and follower 346. It is also possible to omit it. In such a modified delivery device, the can 128 is The guide rails 340, 351 alone are sufficient to guide them into the formula coating cell 96. , the holder 336 provides a slight biasing action sufficient to maintain contact between the can and the guide rail. Just provide it.

The mild biasing action provided by holder 336 can be used, if desired, if can 128 The inner guide rails 340 and 351 follow the trajectory created by the outer guide rails 340 and 351. If side guide rails are provided, they can be omitted.

Reference may be made to the following pending patent applications claiming other aspects of the disclosure of this application: stomach.

No. (our reference number 2721) No. (//2723) No. (//2724) international search report /'JJNEX To -aE INTERiNATZONAL 5EARCH RE? ORT JN

Claims (1)

[Claims] 1. An electrical coating device for electrically coating containers, each electrically coating device for electrically coating containers (128 ), a turret (14) for moving a plurality of cells (96), each segment (278) is operably connected to the cell (96). 272), and each segment (278) in turn as the slibbing ring rotates. to receive a pulsed electrical current to the associated cell (96) and container (128). Then, a voltage is applied to the segments (278) of the continuous slibbing ring (272). a plurality of brushes (286), and further includes a switch device (302, 382-3). 92) recognizes initial full contact between brush (286) and segment (278) and then brush (286) attempts to break out of full contact with segment (278). maintained by the switch device (302, 382-392) until immediately before voltage is applied, which causes approximately the entire length of each segment (278) to extend across all turrets. is used to conduct current at a speed of A small electric coating device. 2. An electric coating device for electrically coating a metal can body, An electric current is applied to the can body (128), which is temporarily surrounded by an electric coating liquid flowing in contact with the can body (128). A rotatable turntable holding a plurality of electrical coating cells (96) for pneumatic coating. a cell (14), wherein each cell (96) is enclosed within the cell (96); when the electrocoating material is applied to one surface of the can body (128) in the flowing liquid. For deposition, an electrode system (14 8,162), and each cell (96) is connected to the turntable (14). each of the first and second slibbing ring segments (278) held by the The electrode system (148, 162) connects between the segments (278). are arranged in a circle, with equally spaced first segments (278), rings (272) and and equally spaced vertically from said first segment (272). a second segment (278) of the turntable (1) forming a ring (275); 4) said turntable (14) at a plurality of predetermined electrical coating stations; an electric brush device (284-292) associated with said brush device (284-2); 92) is the ring (272) of said first slibbing ring segment (278). a plurality of rings circumferentially spaced about and engaged with ring (272); a first electric brush (286) and said second slitting ring segment (278); ) are circumferentially spaced around the ring (276) and the ring (27 an electric brush device (284) including a plurality of second electric brushes (286) engaged with -292) The turntable (14) rotates and the set of brushes (286) When moving the ring (278) of the slip ring segment through the Selected cell electrode system (1 selected first and second brushes (286) to apply voltage to the first and second brushes (48, 162); ) an electrical supply device (300,708) for applying voltage for electrical coating to the an electrical control device (302) for initiating and controlling voltage application to said set of brushes; , the control device (302) operates simultaneously with the rotation of the turntable (14), and (a) each brush (286) of the set is a slibbing segment of the set of segments; (b) with the entire brush (286); Movement of a segment that remains in contact with its slibbing segment (278) The voltage is arranged to be supplied to each set of brushes so that the speed is always high. electrical control device including ON, OFF switch device (710) Device. 3. The ON/OFF switch device (710) is configured to switch each brush of each brush set. (286) remains in contact with the slibbing ring segment (278). only and over substantially the entire segment where contact persists. 3. An electrical coating device as claimed in claim 2, operative to supply said voltage to. 4. The electric control device (302) is connected to the ON/OFF switch device (710). and is arranged so as to be connected to the responsive to electrical control signals received therein for selecting said selected set of brushes; The electrical covering according to claim 2 or 3, comprising a selector switch device operated as Covering device. The turntable (14) is secured to the turntable (14) in its peripheral portion. A series of notches (3 82) and said electrical control device (302). is disposed adjacent to the cutout circular portion (252), and the voltage of each cell (96) is In order to start or interrupt the continuous flow of air-type coating current, two electrical proximities arranged to provide a control signal to actuate the F switch device; An electrical device according to any one of claims 2 to 4, comprising a sensor (386, 388). Air coating equipment. The sensors (386, 388) are arranged in front with a slibbing ring segment (278). from the "switch OFF" position where it is still in contact with the entire brush (286). Instead, the brush (286) has an adjacent slibbing ring segment (278). When moving to the “switch on” position for first full contact, the slibbing ring spaced apart at an angle corresponding to the rotational angular displacement of the segment (278); and each notch (382) corresponds to the angle of the sensor (386388). 6. The electrical coating device of claim 5, having a circumferential extent. 7. The electrode system (144) within each cell (96) a first electrode (162) that electrically contacts said can body (128) when surrounded by said can body (128); ) and for depositing electrocoating material on the inner surface of said can body (128). a second electrode (148, 150) disposed inside the can body (128); The first electrode (162) is connected to the first slip ring segment (278, 276). and the pre-prepared second electrode (148, 150) is connected to the second slip ring set. according to any one of claims 2 to 6, connected to the component (278, 272) Electric coating equipment. 8. (i) In said name cell (96), (a) when surrounded by said cell, said surrounding and spaced from the can body (128); (b) A third electrode (17) connected to a third slip ring segment (278, 274) 5) is arranged, and the third slibbing ring segment (278, 274) is connected to the first and vertically spaced from each said ring of a second slip ring segment. said turntable as a spaced apart third segment ring (274); (ii) said brush device (284-292); are arranged circumferentially around the ring (274) of said third segment (278). and a plurality of third electric brushes (286) engaged with the ring (274); and (iii) the electrical control device (302) is similar to the first and second brushes. 4. The third brush is arranged to apply a voltage to selected brushes of the third brush. 7. Electric coating device according to 7. 9. the third cell (96) and the enclosed can body (128); As a result of the delay in applying voltage to the brushes, no voltage is applied to the outer surface of said can body (128). Deposition of pneumatic coating material is applied to the first and second electrodes (162) within the cell (96); 148, 150) by sequentially applying voltage to the inside of the can body (128). Requests to be delayed until after multiple predetermined deposits of the material on the surface have been made. 9. The electric coating device according to claim 8. 10. The electrical control device (302) controls (a) successive electrical coating stations; For each cell (96) progressing through each electrical coating station of that cell. A device (372, 373) that totals each amount of charge sent to the cell (96) during its passage. , (b) The pre-adjusted reference value over time and the voltage sent to the cell (96) up to that point. (c) a device (374) for comparing the total amount of charge with said total amount of charge; Whenever the preset value of A device (376, 734,736). Place. 11. A charge is sent to the cells (96) sequentially while passing through each electrical coating station. The total amount of data is divided into consecutive stages of the digital data shift register (416, 418). cells (96) are stored in the form of letters and cells (96) are stored from one such station to the next. Proceed through successive stages of registers (416, 418) as you advance to the station 11. The electrocoating device of claim 10, wherein the electrocoating device is integrated in successive stages. 12. Electricity supply and control other than the combination described in any one of the above items. Any operable embodiment of the various aspects disclosed in the foregoing description and drawings with respect to the control device. Electric coating equipment including combinations. 13. Description with respect to any one of the attached schematic drawings or the grooves of the associated drawings Claims 2 to 12 substantially identical to those described and illustrated. Electric coating equipment.