JP4244287B2 - Barrel plating equipment - Google Patents

Description

[0001]
[Industrial application fields]
  The present invention, for example, puts an object into a barrel made of a water-permeable material in which a perforated plate or a net or a perforated plate and a net are stacked, and the object is rotated while rotating the barrel in a plating bath of a plating tank. PlatingRelates to barrel plating equipment.
[0002]
[Prior art]
  In the specification of Japanese Utility Model Application No. 46-95644 (No. 48-50618), a lead wire electrode (cathode) of a barrel plating apparatus as shown in FIG. 11 is described.
  In the figure, 10a is a covered electric wire in which an electric wire (single wire or bundled wire) 10b is covered with a flexible plastic insulating layer 10c, and the bare wire portion 10d at the end of the covered electric wire 10a has good conductivity such as copper. The connecting piece 11a is crimped. A bolt part 11b is integrally formed at the center of the tip of the connecting piece 11a, and the part other than the bolt part 11b of the connecting piece 11a is covered with a flexible plastic insulating layer 11c. A screw nut-shaped electrode body 12a made of a material having good conductivity such as copper is screwed to the bolt portion 11b to constitute an electrode.
[0003]
  The barrel plating apparatus includes a barrel holding frame in which a pair of holding plates parallel in a vertical state with a predetermined interval are connected by a plurality of connecting bars, and each holding plate is positioned on the same horizontal axis. In the state, the tubular shafts are attached in a penetrating manner.
  The barrel is composed of a polygonal (for example, hexagonal) body portion made of a water-permeable material as described above, and an end plate made of a similar water-permeable material fixed in a state of closing both ends of the body portion. An openable and closable lid made of the same water-permeable material is attached to one side surface of the trunk portion.
  In the barrel having such a configuration, the end plate portions at both ends are rotatably attached to the tubular shaft in a state where the barrel portion is inclined at a predetermined angle with respect to a horizontal rotation axis. In each tubular shaft, the base end side of the covered electric wire 10a of the electrode is attached in a penetrating state and in a watertight manner, with each electrode main body 12a positioned relative to the barrel.
  The base end side of the covered electric wire 10a protruding outward from each tubular shaft is formed with a connecting portion from which the insulating layer 10c has been peeled off, and each of the connecting portions is connected with a current-carrying member for introducing current from the outside. The connecting portion and the connecting portion of the energizing member are each covered with a watertight insulating cover.
  By enclosing an appropriate amount of an object to be plated on the barrel, the barrel holding the barrel is submerged in a plating bath such as a plating tank, and the barrel is decelerated and rotated through a rotation transmission means. The object in the barrel is electrically plated.
  In addition, the part immersed in the plating bath of each energizing member is covered with a suitable insulating layer in a watertight manner.
[0004]
[Problems to be solved by the invention]
  For example, when plating the conductive piece of an object having a conductive piece attached to a part of a small ceramic base having a length of 0.2 to 1 mm, in order to apply the plating uniformly and efficiently, Mixes a number of dummy pieces such as iron balls when the object is put into the barrel.
  In such a case, when the above-described conventional electrode is used, the covered electric wire 10a supporting the electrode body 12a is soft and easy to bend. Therefore, when the object group including the dummy moves as the barrel rotates, the electrode body 12a It floats to the surface side without sinking into the object group, and the position of the electrode body 12a frequently changes.
  As described above, if the electrode body 12a floats up or moves frequently from the object group in the barrel, uniform plating cannot be applied to the object group, and the product is tried to be homogeneous. It takes a long time, resulting in high product costs.
[0005]
  The purpose of the present invention is toTo provide a barrel plating apparatus capable of performing plating on a group of objects more uniformly and within a short time even when an object to be plated needs to be processed with a large amount of conductive dummy pieces. is there.
[0006]
[Means for Solving the Problems]
  The barrel plating apparatus according to the present invention is configured as follows to solve the above-described problems.
  That is, the barrel plating apparatus according to claim 1 is:
  A barrel holding frame in which a pair of holding plates parallel to each other in a vertical state at a predetermined interval are connected by a plurality of connecting bars, and attached to each of the holding plates in a penetrating manner while being positioned on the same horizontal axis. Each tubular shaft, a barrel rotatably attached to both the tubular shafts, and a rotation transmitting means for transmitting a rotational force to the barrel in a plating tank;A pair of electrodes attached to each tubular shaft;With
  Each of the electrodes includes a horizontal shaft portion having a predetermined length that is attached in a state of penetrating water tightly to a corresponding tubular shaft, and a bending down formed in a state where the end portion of the shaft portion is continuously inclined downward. And a connecting portion at the other end of the shaft portion and an electrode main body at the tip of the bent-down portion, excluding the connecting portion and the electrode main body. The portion is covered with an insulating layer, and each of the electrode bodies is located in the barrel at a lower level than the shaft portion,
  A current-carrying member is coupled to each connection part, and a connection part between the connection part and the current-carrying member is covered with a watertight insulating cover
  A non-circular portion having a non-circular cross section is formed adjacent to the connection portion at a portion of the shaft portion that protrudes outward from the tubular shaft, and the non-circular portion penetrates the non-circular portion and The restriction plate is detachably attached so as to rotate integrally with the electrode shaft,
  The restriction plate is formed with a plurality of restriction holes including screw holes or screw-through holes at a predetermined angular interval from the center of the through portion of the non-circular portion.
  The restriction plate is fixed to the energizing member or the tubular shaft with a screw in a state where the electrode body is kept at a position deviated by a predetermined amount in the barrel rotation direction from directly below the barrel rotation axis by selecting one of the restriction holes. Has beenIt is characterized by that.
[0007]
[Embodiment]
  Hereinafter, according to the present inventionAn embodiment of a barrel plating apparatus will be described..
  FIG. 1 relates to the present invention.Shows one form of electrode used in barrel plating equipmentIt is a partially broken front view.
  The conductive bar 10 of the electrode 1 is a hard round bar having good conductivity such as a copper bar,Level when mounted on a barrel plating machine (to be described later)A shaft portion 100 of a predetermined length and the shaft portion 100Inclined continuously downward at one end (tip)The bent-down portion 101 is integrally formed.
  Of shaft 100The other end (base end)A connecting portion 13 having a small-diameter bolt-like portion (male screw-like portion) is integrally formed through a non-circular portion 14 having a non-circular cross section, and a connecting piece having good conductivity is provided at the distal end side of the bent-down portion 101. An electrode body 12 made of copper or the like is provided through 11. A portion excluding the base-side bare portion 103 and the tip-side bare portion 102 including the connection portion 13 of the conductive bar 10 is covered with an insulating layer 104 such as plastic.
  A distal end portion including the bare portion 102 of the bent-down portion 101 is fixed in an embedded state (caulking stop) on the proximal end side of the connecting piece 11, and a small-diameter bolt portion 110 is formed at the center of the distal end of the connecting piece 11. Has been. A portion excluding the bolt portion 110 of the connecting piece 11 is covered with an insulating layer 111 such as plastic, and the bolt portion 110 is screwed with a cap nut-like electrode body 12, and the base end surface of the electrode body 12 is the connecting piece. 11 is pressed against the insulating layer 111 on the tip surface excluding the bolt part 110.
[0008]
  As described above, the bending down portion 101 isThe tip of the horizontal shaft 100 is continuously bent downwardly., The bending angle of the bent-down portion 101 with respect to the shaft portion 100 (strictly speaking, the conductive bar 10Shaft part 100A line connecting the bending start portion on the side and the center tip of the electrode body 12,Shaft part 100Θ1 is the cross-sectional area and volume of the barrel in the barrel, which will be described later, the length of the shaft 100, the amount of the plating object to be put into the barrel (including this when mixing dummy pieces), etc. It depends on the conditions. As a general guideline, the bending angle θ1 is preferably about 25 to 60 °.
  In the electrode 1 of this embodiment, in order to be able to replace the electrode body 12 when the electrode body 12 is heavily consumed, the connection portion 11 whose periphery is covered with the insulating layer 111 is provided on the tip of the conductive bar 10. Although the electrode body 12 is attached, the bare portion 102 at the tip of the conductive bar 10 can be used as the electrode body 12.
[0009]
  2 is a partially omitted front view showing an embodiment of a barrel plating apparatus according to the present invention, FIG. 3 is an enlarged cross-sectional view along arrow AA in FIG. 2 in a state where the barrel is omitted, and FIG. FIG. 5 is a partially enlarged sectional view showing the relationship between the barrel of the barrel plating apparatus and the barrel holding frame, and FIG. 5 is a partially enlarged sectional view showing in detail the combined structure of the barrel, rotation transmission means, left electrode and current-carrying member in the apparatus of FIG. 6 is a partial enlarged cross-sectional view showing in detail the combined structure of the barrel, the right electrode and the current-carrying member in the apparatus of FIG. 4, FIG. 7 is a front view of the lower end of the current-carrying member, and FIG. FIG. 9 is a side view of the electrode viewed along the arrow BB in FIG. 4.
[0010]
  The barrel plating apparatus of this embodiment includes a barrel holding frame 2, a barrel 3 rotatably held via a tubular shaft 4, 4 at a lower portion of the barrel holding frame 2, and a pair of electrodes 1 attached to the barrel 3. 1. Each energizing member 5 for supplying a direct current to each electrode 1, a rotation transmitting means 6 for transmitting rotation from a driving source (not shown) to the barrel 3, and a barrel holding frame 2 holding the barrel 3 are movably accommodated. It comprises a plating tank 7.
[0011]
  The barrel holding frame 2 is configured by connecting a pair of holding plates 20, 20 parallel to each other in a vertical state at a predetermined interval by upper and lower four connecting bars 22, and each holding plate 20 is an upper portion fixed to the upper portion. Each has a holding plate 21.
[0012]
  As shown in FIGS. 2 and 4, the barrel 3 has a body portion in which a porous plate (not shown) made of a hard synthetic resin in which a large number of small holes are densely formed is combined into a polygon (in this embodiment, a hexagon). 30 and end plates 31, 31 made of a similar porous plate and fixed to both ends of the body portion 30 so as to close the both ends.
  A lid (not shown) made of a porous plate made of the same material is attached to one side surface of the body portion 30 so that it can be opened and closed.
  A mesh (not shown) of a small mesh is fixed inside each side surface of the trunk portion 30 including the lid.
[0013]
  As shown in FIG. 4, FIG. 5 and FIG. It is attached to the state which penetrates right angle.
  In this embodiment, each tubular shaft 4 is constituted by a shaft main body 40 and an electrode cover 41 partly press-fitted into the shaft main body 40 from the outside, and at the outer end of each electrode cover 41, A circular and deep dish-shaped housing portion 42 is formed.
  Each tubular shaft 4 is fixed to the corresponding holding plate 20 by screwing a flange 43 formed on the outer end portion of each shaft main body 40 to the holding plate 20 with an appropriate number of screw screws 44.
  One tubular shaft 4 (on the left side in FIG. 4) has a longer dimension than the other tubular shaft 4 in order to attach the terminal gear 60 of the rotation transmitting means 6.
[0014]
  A barrel 3 is rotatably attached to each tubular shaft 4 via a bearing 32 fixed to the end plate 31 in a penetrating manner. When the barrel 3 is attached, the barrel 30 of the barrel 3 is attached in a state in which it is inclined at a predetermined angle θ4 in the vertical direction and at a predetermined angle in the horizontal direction with respect to the horizontal rotation axis a shown in FIG. . By attaching the barrel 3 in such a tilted state, it is possible to promote preferable movement and agitation of the inner plating object accompanying the rotation of the barrel 3.
  The amount of inclination in the vertical direction and the amount of inclination in the horizontal direction with respect to the rotation axis a of the body portion 30 depends on the capacity of the barrel 3, the size of the object to be plated, the input amount to the barrel 3, and other specific conditions. As a general guideline, it is preferable to set both the vertical and horizontal inclinations within a range of 15 ° or less with respect to the rotation axis a. This is because, when the amount of the inclination of the barrel 3 is larger than the angle, the movement and stirring of the plating object put into the barrel 3 are not promoted, and the rotation of the barrel is not smooth.
  In this embodiment, the barrel 30 of the barrel 3 is tilted about 12 ° in both the vertical and horizontal directions with respect to the rotation axis a.
[0015]
  A specific mounting structure of the barrel 3 to the tubular shafts 4 and 4 is as follows.
  As shown in FIGS. 4 to 6, the appropriate position of each end plate 31 is adapted to both inclinations of the barrel 3 as described above and to the outer periphery of the corresponding inner end of the tubular shaft 4. In such a state, for example, a bearing 32 made of hard synthetic resin is fixed in a penetrating manner. A housing 33 of the same material is attached to the outer periphery of the required portion of each bearing 32.
  The bearings 32 attached as described above are rotatably attached to the shaft body 40 of the tubular shaft 4.
  One of the bearings 32 and the housing 33 (on the left side in FIG. 4) is fixed to the side surface of the hard synthetic resin end gear 60 of the rotation transmitting means 6, and this end gear 60 is also rotatably attached to the corresponding shaft body 40. It has been.
[0016]
  The shaft portion 100 of the electrode 1 is attached to each tubular shaft 4 in a penetrating manner so that the connecting portion 13 protrudes toward the housing portion 42 of each electrode cover 41.
  The outer peripheral surfaces of the bare portion 103 and the insulating coating portion of each shaft portion 100 and the inner peripheral surface of the tubular shaft 4 that is in contact therewith are kept in a watertight state by the seal rings 45 interposed therebetween.
  A bushing 15 made of a hard synthetic resin is mounted between the outer periphery of each shaft portion 100 and the inner periphery of the inner end portion of the bearing 32 so as to be fixed to the shaft portion 100 side and rotatable with respect to the bearing 32. .
[0017]
  As shown in FIG. 5 and FIG. 6, the non-circular portion 14 is formed in the bare portion 103 of the shaft portion 100 of each electrode 1 as described above, and each non-circular portion 14 has a shaft. Part 100And integral rotationA restriction plate 46 is attached so as to.
  The restriction plate 46 is maintained in a desired posture, and the restriction plate 46 is fixed to a lower end portion of an energization member 5 to be described later by screw screws 47 to restrict the electrode 1 from rotating. At the same time, the electrode plate 12 is positioned below the rotation axis a (FIG. 2) by an appropriate amount as shown in FIG.Inclined by a predetermined angle θ5 in the barrel rotation direction with respect to a vertical plane depending from the rotation axis a of the barrel.The position of the electrode body 12 is regulated.That is, the regulating plate 46 is fixed to the energizing member 5 (described later) by a screw screw 47 in a state where the electrode body 12 is kept at a position deviated by a predetermined amount in the barrel rotation direction from directly below the barrel rotation axis.
  In such an installation state of the electrodes 1, 1, the electrode bodies 12, 12 are in close proximity to each other at approximately the center in the length direction of the rotating barrel 3 as shown in FIG. 4.
[0018]
  In this embodiment, each restricting plate 46 is formed in a fan shape as shown in FIG. 8, and a long hole 461 that fits in the rotational direction with respect to the non-circular portion 14 at the center of the fan shape. Is formed. Screw tap-shaped restriction holes 462 and 463 are formed at regular intervals on both sides of the upper part of the fan-shaped center line d of the restriction plate 46.
  Then, the restriction plate 46 is attached to the non-circular portion 14 so that the non-circular portion 14 passes through the long hole 461 of the restriction plate 46, and the restriction hole selected by selecting one of the restriction holes 462 and 463 is selected. A screw screw 47 is screwed into a selected restricting hole 462 or 463 through a guide hole 52 that is positioned immediately above the non-circular portion 14 and formed in a lower portion of the energizing member 5 to be described later. The inclination angle θ5 of the lowering part 101 is set.
[0019]
  In this embodiment, the center line d is formed by each line e connecting the center of the long hole 461 in the regulation plate 46 (fan-shaped rotation center) and the center of each regulation hole 462 closest to the center line d. The angle θ2 is set to 30 °. In addition, an angle θ3 formed by each line f connecting the center of the long hole 461 and the center of each other restriction hole 463 and each line e adjacent thereto is set to 15 °.
  Therefore, the inclination angle θ5 of the bent-down portion 101 in FIG. 9 can be selected and set to 30 ° or 45 °.
[0020]
  The appropriate level position of the electrode body 12 as described above, and the appropriate degree of inclination θ5 in the barrel rotation direction of the bent-down portion 101 in the cross section orthogonal to the shaft portion 100 are the cross-sectional volume of the barrel portion 30 of the barrel 3 and the like. It depends on the size and amount of the object to be plated, the rotational speed of the barrel 3 and other specific conditions.
  As shown in FIG. 9, the upper surface of the small plating object group c including the dummy piece placed in the barrel 3 is rotated at the center of the barrel 3 in the longitudinal direction as the barrel 3 rotates in the clockwise direction. In this state, the target group is moved and stirred as indicated by the arrow in FIG. The level of the electrode body 12 and the inclination angle θ5 in FIG. 9 are set so that the object moving in the downward direction contacts the electrode body 12 as evenly as possible when the plating object group c moves. preferable.
  As a temporary measure, it is preferable to set the inclination angle θ5 of the bent-down portion 101 of the electrode 1 in the barrel rotation direction within a range of 25 to 50 °.
[0021]
  As shown in FIGS. 2 and 4 to 6, the electrode 1 is energized through a plate-like energization member 5 that hangs down along the side of the barrel holding frame 2 from above.
  The lower end portion of the energizing member 5 protrudes into the housing portion 42 of the tubular shaft 4 from above, and this protruding portion is electrically connected to the connection portion 13 of the electrode 1 as follows.
  As shown in FIG. 7, at the lower end portion of the energizing member 5 that enters the housing portion 42, a notched guide portion 50 that leads to the lower end and a seat so as to be positioned around the upper end portion of the guide portion 50. A countersunk seat 51 is formed. The guide portion 50 projects and projects a bolt-like portion of the connection portion 13, and a nut is provided to the connection portion 13 through a conductive contact plate 54 and a spring washer 55 made of brass or copper guided by the seat portion 51. The current-carrying member 5 is coupled to the connection portion 13 in a state where the contact resistance is electrically reduced by screwing 53.
[0022]
  A female threaded portion is formed on the inner peripheral surface of the distal end portion of the housing portion 42, and by screwing a hard synthetic resin screw cap 8 formed with a male threaded portion into the housing portion 42 via a seal ring 80, The connection part of the connection part 13 and the electricity supply member 5 is kept in the watertight state insulated from other parts.
  The portion of the energizing member 5 that protrudes upward from the housing portion 42 is covered with an insulating member 56 such as plastic, and in the state where the barrel holding frame 2 is installed in the plating tank 7 as shown in FIG. It is insulated in a watertight manner with respect to the plating solution (b is the liquid level) in the plating tank 7.
  The upper end of each energizing member 5 is connected to an energizing plate 57 attached to the upper side of the barrel holding frame 2 so as to have a T shape, and is configured to receive current from the other through the energizing plate 57. ing.
[0023]
  As shown in FIGS. 2 and 3, the rotation transmitting means 6 is fixed to a rotary shaft 64 that is rotatably attached to the upper holding plates 21 and 21 so as to pass through them, and to one end portion of the rotary shaft 64. A hard synthetic resin gear 65 and a gear train that transmits to the barrel 3 rotation received by a motor or other drive source (not shown).
  The gear train is rotatable to a hard synthetic resin gear 63 fixed to a rotary shaft 64, intermediate gears 62 and 61 of the same material attached to one holding plate 20, and the tubular shaft 4, respectively. It is comprised by the terminal gearwheel 60 of the same material with which it was attached.
[0024]
  As shown in FIG. 2, bearing members 64 a and 64 a are rotatably attached to the rotating shaft 64 so as to be located on both sides of the barrel holding frame 2. The rotary shaft 64 is placed on the both side edges of the plating tank 7 in a state of being passed in a state where the bearing members 64a and 64a are guided to the receivers 70 and 70 provided on the upper edges of both sides of the plating tank 7. Then, the barrel holding frame 2 is installed in a hanging shape in an appropriate posture in the plating tank 7, and the barrel 3 held in the barrel holding frame 2 is in a state where an appropriate amount is submerged in the plating solution in the plating tank 7. It is configured as follows.
  On the opposite side of the upper holding plates 21, 21, mounting plates 24, 24 are fixed vertically via a plurality of connecting bars 23, and the handle bars are parallel to each mounting plate 24 at the same level. 25 and 25 are attached horizontally. When the barrel holding frame 2 is moved to another place or moved from another place to the plating tank 7 shown in the figure, a hook bar of a transfer device (not shown) is hooked on each handle bar 25 and the barrel holding frame 2 is lifted up. It is configured to move.
[0025]
  In the barrel plating apparatus of the above embodiment, an appropriate amount of an object to be plated is put into the barrel 3 and the lid is closed. As shown in FIG. 2, the barrel holding frame 2 so that the barrel 3 sinks below the liquid level b of the plating solution. Is set in the plating tank 7, and the object is plated by energizing the electrode 1 while rotating the barrel 3 at a reduced speed through the rotation transmitting means 6.
  By the rotation of the barrel 3, the object to be plated moves so as to reciprocate along the barrel within the barrel 3 and is well agitated. As the barrel 3 rotates, the object repeatedly comes into contact with the electrode body 12 to further promote stirring of the object.
[0026]
  Electrode 1 isSince the bent bar 101 is formed mainly on the hard conductive bar 10 having good conductivity instead of the covered electric wire and in the direction of the tip of the horizontal shaft 100, the apparatus is operated by attaching it to the barrel plating device so as not to rotate. At this time, the position of the electrode body 12 is kept constant.
  Further, in the barrel 3 of the barrel plating apparatus, the bending portion 101 in the cross section orthogonal to the rotation axis a is inclined downward in the barrel rotation direction so that the electrode body 12 is positioned at a level lower than the rotation axis a. It can be attached so that it is in a state to do.
  Therefore, especially in barrel plating equipment where the object to be plated needs to be mixed and processed with a large amount of conductive dummy pieces, it contributes to plating the object group more uniformly and within a shorter time. can do.
[0027]
  The barrel plating apparatus of the embodiment isThe electrode 1 configured as described aboveSince the respective electrode main bodies 12 are mounted in the barrel 3 so as to be positioned relative to each other at a lower level than the rotation axis a (the shaft portion 100), the bending down including the electrode main body 12 is performed when the barrel 3 rotates at a reduced speed. An object to be plated is repeatedly brought into contact with a part of the portion, stirring of the object to be plated is promoted, and the object can be plated more uniformly and in a short time.
  Since the barrel 3 is attached to the tubular shafts 4 and 4 so as to be inclined at a predetermined angle in a direction perpendicular to the rotation axis, the object to be plated moves so as to reciprocate along the barrel portion 30 of the barrel and is stirred. Is further promoted, and the object can be subjected to a more uniform plating process.
  Since the barrel 3 is attached to each tubular shaft in a state inclined at a predetermined angle in the horizontal direction with respect to the rotation axis, the movement and stirring of the plating object are further promoted, and the object is plated more uniformly. be able to.
  A small diameter bolt-shaped portion is formed at the tip of the connection portion 13 of the electrode 1, and the nut 53 is screwed to the bolt-shaped portion by passing the tip portion of the connection portion 13 through the lower end portion of the current-carrying member 5. And since the electricity supply member was connected to the said connection part, the electrical resistance of both connection parts becomes small.
  Since the bent-down portion 101 including the electrode body 12 is attached in a state inclined downward by a predetermined angle in the rotation direction of the barrel in a cross section orthogonal to the shaft portion 100, the object is stirred and uniformly applied to the electrode body 12. Contact is promoted, and plating can be performed even more uniformly on the object group.
[0028]
  Other embodiments
  FIG. 10 is a partially enlarged sectional view showing another embodiment of the barrel plating apparatus according to the present invention.
  In the above embodiment, the restriction plate 46 is fixed to the energizing member 5, but in this embodiment, each restriction hole 462 (463) formed in the restriction plate 46 is not in the form of a screw tap but in the form of a screw-through hole. The screw screw 47 passed through one of the restricting holes 462 (463) is screwed into the screw tap hole formed in the electrode cover 42 of the tubular shaft 4, and the restricting plate 46 is fixed to the tubular shaft 4. Even with such a configuration, the same effect as the apparatus of the above-described embodiment can be obtained.
[0029]
  The electrode1 is formed straight in a state in which the bent-down portion 101 forms a predetermined angle θ1 with respect to the shaft portion 100, but the bent-down portion may be bent in an arc shape or a polygonal shape in the downward direction. Can be implemented.
[0030]
【The invention's effect】
  Barrel plating apparatus according to the present inventionAccording to the above, the electrode is mainly a hard conductive bar with good conductivity, not a covered electric wire,When mounted on barrel plating equipmentOf horizontal shaftAt the tipSince the bent-down portion is formed, when the apparatus is operated by attaching it to the barrel plating apparatus so as not to rotate, the position of the electrode body is kept constant.
  Therefore, especially in barrel plating equipment where the object to be plated needs to be mixed and processed with a large amount of conductive dummy pieces, it contributes to plating the object group more uniformly and within a shorter time. can do.
  In addition, since the electrode body is in a state where it is maintained at a position deviated by a predetermined amount in the barrel rotation direction from directly below the rotation axis of the barrel, the stirring of the object and the uniform contact with the electrode body are promoted, and the object group Helium plating can be applied more uniformly.
The restriction plate is formed with a plurality of restriction holes including screw holes or screw-through holes at a predetermined angular interval centering on the through portion of the non-circular portion. Since it is configured to be fixed to the member or the tubular shaft with a screw, the amount of deviation of the electrode body in the barrel rotation direction from directly below the barrel rotation axis can be changed.
[Brief description of the drawings]
FIG. 1 relates to the present invention.One form of electrode in barrel plating equipmentFIG.
FIG. 2 is a partially omitted front view showing an embodiment of a barrel plating apparatus according to the present invention.
3 is an enlarged cross-sectional view taken along arrow AA of FIG. 2 in a state where a barrel is omitted.
4 is a partial enlarged cross-sectional view showing a relationship between a barrel and a barrel holding frame of the barrel plating apparatus of FIG. 2;
5 is a partial enlarged cross-sectional view showing in detail a combined structure of a barrel, rotation transmission means, a left electrode and a current-carrying member in the apparatus of FIG.
6 is a partial enlarged cross-sectional view showing in detail a combined structure of a barrel, a right electrode, and a current-carrying member in the apparatus of FIG.
FIG. 7 is a front view of a lower end portion of a current-carrying member.
FIG. 8 is a front view of a regulating plate that locks a shaft portion of an electrode.
FIG. 9 is a side view of the electrode viewed along arrow BB in FIG. 4;
FIG. 10 is a partially enlarged sectional view showing another embodiment of a barrel plating apparatus according to the present invention.
FIG. 11 is a partial cross-sectional view of an electrode for a conventional barrel plating apparatus.
[Explanation of symbols]
10a Covered wire
10b electric wire
10c Insulating layer
10d Bare wire part
11a connecting piece
11b Bolt part
11c Insulating layer
12a electrode body
1 electrode
10 Conductive bar 100 Shaft
101 Bending part
102,103 Bare part
104 Insulating layer
11 Connecting pieces
110 Bolt part
111 Insulating layer
12 Electrode body
13 connections
14 Non-circular part
2 Barrel holding frame
20 Holding plate
21 Upper holding plate
22,23 connecting bar
24 Mounting plate
25 Handle bar
3 barrels
30 torso
31 End plate
32 Bearing
33 Housing
4 Tubular shaft
40 shaft body
41 Electrode cover
42 Housing part
43 鍔
44, 47 Screw screws
45 Seal ring
46 Restriction plate
461 long hole
462, 463 Restriction hole
5 Current-carrying members
50 Guide
51 Seat
52 Guide hole
53 nuts
54 Conductive contact plate
55 washer
56 Insulation material
57 Current carrying plate
6 Rotation transmission means
60 Terminal gear
61, 62 Intermediate gear
63, 65 gears
64 Rotating shaft
64a Bearing member
7 Plating layer
70 receptacle
8 Screw cap
80 Seal ring

Claims (1)

A barrel holding frame in which a pair of holding plates parallel to each other in a vertical state at a predetermined interval are connected by a plurality of connecting bars, and attached to each holding plate in a penetrating manner in a state of being positioned on the same horizontal axis. Each tubular shaft, a barrel rotatably attached to both the tubular shafts, a rotation transmitting means for transmitting a rotational force to the barrel in a plating tank, and a pair of electrodes attached to the tubular shafts ,
Each of the electrodes includes a horizontal shaft portion having a predetermined length that is attached in a state of penetrating water tightly to a corresponding tubular shaft, and a bending down formed in a state where the end portion of the shaft portion is continuously inclined downward. And a connecting portion at the other end of the shaft portion and an electrode main body at the tip of the bent-down portion, excluding the connecting portion and the electrode main body. The portion is covered with an insulating layer, and each of the electrode bodies is located in the barrel at a lower level than the shaft portion,
A current-carrying member is coupled to each connection part, and a connection part between the connection part and the current-carrying member is covered with a watertight insulating cover,
A non-circular portion having a non-circular cross section is formed adjacent to the connection portion at a portion of the shaft portion that protrudes outward from the tubular shaft, and the non-circular portion penetrates the non-circular portion and The restriction plate is detachably attached so as to rotate integrally with the electrode shaft,
The restriction plate is formed with a plurality of restriction holes including screw holes or screw-through holes at a predetermined angular interval from the center of the through portion of the non-circular portion.
The restriction plate is fixed to the energizing member or the tubular shaft with a screw in a state where the electrode body is kept at a position deviated by a predetermined amount in the barrel rotation direction from directly below the barrel rotation axis by selecting one of the restriction holes. It is characterized by being
Barrel plating equipment.

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