JP2006205043A - Immersion plant - Google Patents

Abstract

[Objective] To provide a continuous immersion treatment apparatus having a novel configuration that can reduce the consumption of paint such as the most lubricant and easily reduce the size of the apparatus when a lubricating layer is applied to a forged metal material. thing.
[Constitution] Continuous immersion treatment equipment for continuous immersion treatment on workpieces. An endless work moving device 12 for circulating the work W is provided. Then, one position around the workpiece moving means 12 is defined as a workpiece loading / unloading position S, and the workpiece detaching device 46, the dipping device 48, and the drying device 50 are arranged in order of the workpiece moving direction with the workpiece loading / unloading position S interposed therebetween. To do. The work moving device 12 includes a drive chain device 14 and a work holding member 16 attached to the drive chain device 14 at a predetermined pitch so as to be movable up and down. The dipping device 48 includes a dipping tank 60 and a dipping cylinder 62A that is disposed above the dipping tank 60 and moves up and down the work holding member 16.
[Selection] Figure 2

Description

  The present invention relates to a novel continuous immersion treatment plant in which a series of operation (processing) units necessary for subjecting a workpiece to continuous immersion treatment are integrally arranged around an endless moving device.

  In particular, an immersion treatment plant and continuous immersion treatment suitable for performing coating (surface treatment / lubricating layer forming treatment) of a metal material (workpiece) before or during cold working (forging, pressing, rolling, etc.) Regarding the method.

  Here, the case where the immersion treatment for forming the lubricating layer is performed on the metal material for cold forging will be mainly described as an example.

  Conventionally, in cold working, the formation of a lubricating layer on a metal material for cold forging in particular has been performed, for example, through a process as shown in FIG. 1 (see Paragraph 0042 Table 1 in Patent Document 1).

  However, in the above method, many (immersion) treatments are necessary, and water washing (rinsing step) is necessary to remove an excess chemical solution for each step, and conveyance means between each step is also necessary. It was.

  In order to solve the above problems, a drug that can form a lubricating layer forming layer by chemical conversion treatment, immersion, and drying once or twice has recently been put on the market.

  And the lubricant layer formation process of the workpiece | work (metal) raw material using the said chemical | medical agent is generally performed by the following barrel systems (system similar to barrel plating).

  The work is put into a cylindrical work throwing basket (barrel). The barrel is immersed in a chemical tank filled with a chemical and rotated for a predetermined time. The barrel is lifted from the chemical bath and rotated in the same manner in a hot air dryer to be dried. After that, the work (product) is taken out from the work input basket.

  However, it has been found that the method for forming a lubricating layer as described above has the following problems.

    1) When the barrel is rotated, the workpieces interfere with each other and the workpiece is easily damaged.

    2) When the barrel is pulled up, a large amount of chemical solution is accompanied, and the chemical solution consumption tends to increase.

    3) A special conveying means was required between the dipping process (apparatus) and the drying process (apparatus).

    4) It was difficult to deal with a small variety of products with uneven workpiece shapes.

  Further, although not affecting the patentability of the present invention, a continuous processing apparatus having the following outline for the purpose of downsizing and paint saving in the processing apparatus is described.

“A dip coating part placed under the conveyor belt stretched in the horizontal direction is placed parallel to the slide base installed so that it can move in equilibrium with the direction of travel of the conveyor belt, and the slide base is synchronized with the conveyor belt. A horizontal drive means for moving, an elevating base for moving the paint tank, which is supported on the slide base and opened upward, to the transport belt in the vertical direction, and installed above the ascending paint tank It is composed of a liquid level sensor that reveals a predetermined position of the coating liquid level in the coating tank and a return means for returning the slide base to the initial position.
This device is a device that attaches a work (object to be coated) to an endless belt, conveys it continuously, moves the paint tank synchronously when it comes to a predetermined position, and moves the paint tank up and down to apply it, As in the present invention, when the workpiece is intermittently moved and stopped, the workpiece is not immersed and applied to the stationary immersion tank.
Japanese Patent Laid-Open No. 8-100196 JP 2000-279864 A

  In view of the above, the present invention has an object (problem) to provide a continuous immersion treatment apparatus having a novel configuration that can reduce the consumption of paint such as a lubricant and can be easily downsized. .

  In the course of earnest development to solve the above-mentioned problems, the present inventors have conceived a continuous immersion treatment apparatus having the following configuration.

A continuous immersion treatment device for continuously applying immersion treatment to a workpiece,
An endless work moving means for circulating and moving the work is provided, and a position around the work moving means is set as a work loading / unloading position, and the work loading / unloading means is immersed in the work moving direction in order of the work loading / unloading position. Means and drying means are arranged,
The work moving means includes an endless drive member and a work holding member attached to the endless drive member at a predetermined pitch so as to be movable up and down.
The dipping means includes a dipping tank and an elevating member for dipping disposed above the dipping tank and moving the work holding member up and down.

  With this configuration, work holding members are mounted around the endless work moving means so as to move up and down at a predetermined pitch, so that even parts (stations) that need to be processed by setting off a work such as an immersion station can be transported. Processing is possible by placing an immersion bath or the like below the surface. That is, conveyance and processing can be performed at the same plane position, and the entire apparatus can be easily downsized and integrated.

  In the above-described configuration, the washing means is further provided on the front side of the dipping means in the workpiece movement direction, and the washing means is provided with a washing tank and a flushing elevating member that is disposed above the washing tank and raises and lowers the workpiece holding member. It is desirable that the washing tank has a dipping tank and a temperature control means. By using warm water (hot water) as the water in the washing tank, the water washing performance is improved, and further, the chemical solution (lubricating layer forming agent) in the immersion tank can be warmed, and the work adhesion of the immersion coating is improved. At the same time, the drop-off property and drying property of the post-process are improved, contributing to energy saving and productivity improvement.

  Further, the dipping means is provided with a drip cutting means on the rear side of the moving direction of the dipping means, the drip cutting means is provided with a drip cutting tank in which a plurality of air nozzles arranged up and down toward the axial center are provided, and the work is arranged in the air nozzle arrangement. It is characterized in that it can be raised and lowered repeatedly within the range of the installation height.

  By repeatedly raising and lowering the work while air is jetted onto the work, the drip removal property is improved and the coating leveling property is improved.

  In each of the above configurations, an annular guide rail is provided above the endless drive member in correspondence with its outer peripheral locus, and the work holding member is mounted on the endless drive member so as to be integrally movable at a predetermined pitch in the vertical direction. A vertical movement rod fitted to and supported by a guide block provided with a workpiece holding jig attached to the lower end of the vertical movement rod, and a sliding portion for sliding the guide rail on the upper end of the vertical movement rod, The work holding member can be circulated, and the elevating member includes a roller receiving portion that constitutes a part of the guide rail when it is raised, and a driving means that drives the roller receiving portion up and down. Is desirable.

  With this configuration, the workpiece can be lowered and offset at each station position easily and stably, and each process (process operation) can be easily performed at the lowered position.

  In each of the above configurations, it is desirable that the water washing means and the dipping means are provided with a plurality of air nozzles capable of injecting air onto the work on the rear side in the work movement direction.

  It is possible to further improve the dip coating property after the water washing step and the drip-off property after the dip step, respectively.

  The drying means includes a plurality of pairs of air nozzles arranged along the work flow direction, and a drying hood that covers the work moving along the air nozzles, and the air nozzle is connected to the tank type pipe. desirable.

  With the dry hood, the droplets are not scattered and the working environment is improved and the heat retention is improved. Moreover, it is easy to ensure air capacity by tank type piping, and synergistically improves drying efficiency. Therefore, drying can be performed at a short distance, which leads to a reduction in power consumption.

  It is desirable that the continuous immersion treatment apparatus having the above-described configuration is used for forming a lubrication layer of a metal material for plastic working. Since the workpieces are individually conveyed, there is no risk of damage to the workpieces, and it is possible to form a uniform lubricating layer on the metal surface. Deterioration of lubricant chemicals can also be prevented. As a result, the quality of the lubricating layer is also stabilized.

  The continuous immersion treatment method using the above apparatus has the following configuration.

  In a lubrication layer forming treatment method including a hot water washing step of a metal material for plastic working (work), a dip coating step of a lubricant layer forming agent, and a drying step in sequence, the workpiece is moved at the air blowing portion while air blowing in a plurality of upper and lower stages. A drip-cutting process in which drip-cutting is performed by raising and lowering the short stroke is arranged between the dip coating process and the drying process.

  In the continuous immersion treatment method, it is desirable to perform the drying step following the drip-cutting step while adjusting the strength of air blow and the atmospheric temperature.

  Combined with the drip-cutting step, the leveling property of the coating film is improved. That is, by balancing the air blow strength and the ambient temperature, it is possible to prevent the dry coating from becoming uneven due to the blow being too strong while maintaining a predetermined productivity.

  Hereinafter, a plant apparatus for a continuous dipping process (lubricating layer forming process) according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 2 is a development plan flow diagram schematically showing the plant apparatus, FIG. 3 is an overall schematic front view (with the front hood removed), FIG. 4 is a schematic side sectional view of FIG. 3, and FIG. FIG. 6 is a perspective view of the workpiece holding jig, FIGS. 7A and 7B are elevation and plan views showing the air nozzle arrangement of the drip removal device, and FIG. It is a time chart for.

  In the plant of this embodiment, basically, a series of operation (processing) units necessary for performing continuous immersion processing on the workpiece W are integrally arranged around the endless workpiece moving device (work moving means) 12. It has been done.

  The workpiece moving device 12 includes a drive chain device (endless drive member) 14 and a workpiece holding member 16 held on the drive chain device 14 at a predetermined pitch so as to be movable up and down.

  Specifically, in the drive chain device 14, a double chain 15 is stretched between double drive / driven sprockets 18, 20, and the drive sprocket 18 is driven by a reduction gear motor 22. Here, the work drive device 14 is supported on a first frame 26 having a first table 26a having a first oval upper surface at a predetermined height. That is, the rotary shafts of the drive and driven sprockets 18 and 20 are supported by bearings at the center of the arcs of both ends of the ellipse of the first table 26a, and the speed reducer motor 22 is provided on the lower surface of the drive sprocket 18 of the first table 26a. Is supported. Naturally, the rotating shaft of the drive sprocket 18 and the output shaft of the speed reducer motor 22 are connected by a coupling 24.

  In the present embodiment, the second gantry 28 is formed on the first table 26a of the first gantry 26 via a pair of prisms 28b, and the upper surface of the first gantry 26 is an oval second table 28a slightly larger than the first table 26a. Has been. An annular guide rail 30 is formed around the upper surface of the second table 28a.

  The work holding member 16 is attached to a drive chain device (endless drive member) 14 so as to be integrally movable at a predetermined pitch, and a vertical movement rod 34 fitted and supported by a guide block 32 having a guide hole 32a in the vertical direction; The work holding member 16 is provided with a work holding jig 36 attached to the lower end of the vertical movement rod 34 and a sliding member (roller) 38 that slides on the guide rail 30 at the upper end of the vertical movement rod 34 so that the work holding member 16 can circulate. ing.

  In the example shown in the figure, the chain 15 is doubled for stable holding of the workpiece, and the vertical movement rod 34 is configured as a set of two, but may be one or three or more as appropriate. Yes, the rod cross section may be not only a regular shape such as a circle and a polygon, but also a flat cross section and other irregular cross sections.

  The guide block 32 is attached to the outer surface of the chain via a bracket 40 having a U-shaped cross section, and the lower surface of the bracket 40 is supported on the outer surface of the first table 26a for stable running. A roller (sliding portion) 42 is attached.

  The workpiece holding jig 36 is attached via a jig receiving portion 38b at the tip of the horizontal portion 38a of an L-shaped suspension arm 38 attached to the lower end portion of the vertical movement rod 34. Here, the horizontal portion 38a has a triangular shape at the upper end cross section as shown in the figure, so that the chemical solution can be easily dropped. As shown in FIG. 6, the work holder 36 has a radiation receiving portion including a plurality of arms (four in the illustrated example) that are radially extended so that the droplets smoothly fall and have engagement portions formed at the tips. 36a, and a conical set column 36b having a conical tip for stably holding the workpiece by fitting into the hole portion of the holed workpiece. At this time, the cross-section of the radiation receiving portion 36a, like the above-described horizontal portion 38a, is a circular cross-section as shown in the figure example in which the workpiece can be brought into point contact or the upper-end cross-sectional triangle shape as described above. Desirable from a viewpoint. At this time, the radiation receiving portion 36a and the set column portion 36b can be replaced with various sizes, respectively, and can be applied to the surface treatment of metal materials (work pieces) of various kinds and small quantities.

  An engagement travel roller (sliding member) 44 that engages and travels on the guide rail 30 formed on the outer peripheral surface of the second table 28a via the wheel holding plate portion 43 having an L-shaped cross section at the upper end of the vertical movement rod 34. Is installed.

  Then, a position around the workpiece moving device 12 is a workpiece loading / unloading position (work loading / unloading station) S, and the workpiece loading / unloading position is sandwiched between the immersion devices (immersion means, immersion) Station) 48 and a drying device (drying means, drying station) 50 are arranged. Further, in the present embodiment, a water washing device (water washing means, water washing station) 52 is provided on the front side of the dipping device 48 in the work movement direction, and a drip removal device (dropping means, drip cutting station) is provided on the rear side of the dipping device 48 in the work movement direction. 54.

  Hereinafter, each of the above devices will be described in detail.

  Although not necessarily required, the jig clamp device 46 is disposed at the workpiece loading / unloading position S. The jig clamp 46 includes a clamp 46a that clamps and unclamps the protruding shaft 36c at the center of the lower surface side of the work holding jig 36, and a clamp cylinder 47 that opens and closes the clamp 46a. The clamp cylinder 47 is connected to the clamp 46a so that it is unclamped when the piston rod is raised and unclamped when the piston rod is lowered.

  In addition, loading / unloading of the workpiece W to / from the loading / unloading position S is performed by an apparatus loading / unloading robot 58 provided independently of the continuous immersion processing apparatus.

  The dipping device 48 includes a dipping bath 60 and a dipping / lowering member 62 that is arranged above the dipping bath 60 and raises and lowers the work holding member 16. A water washing device 52 arranged in front of the dipping device 48 includes: A washing tank 64 and a raising / lowering member 62 </ b> A for washing which is arranged above the washing tank 64 and raises and lowers the work holding member 16 are provided. At this time, the washing tank 64 includes the immersion tank 60 and is provided with temperature control means 66.

  In the illustrated example, each of the elevating members 62 and 62A includes a roller receiving portion 68 that can be moved up and down separately and constitutes a part of the guide rail 30 corresponding to each position of the immersion tank 60 and the washing tank 64, and Drive means (air cylinder) 63 for driving the roller receiving portion 68 up and down is provided. Specifically, the roller receiving portion 68 is integrally attached with a T-shaped connecting member 70 so as to be movable independently from the second table 28a. Then, the cylinder rod 63a of the air cylinder 63 disposed on the second table top 28a is coupled to the connecting member 70. In the example, reference numeral 74 denotes an air cylinder support frame.

  The rinsing tank 64 includes seeded heaters (plug heaters) 66 (two in the illustrated example) serving as temperature control means, and water can be circulated by a circulation pump 76. Note that connection piping between the discharge ports / suction ports 76a, 76b of the circulation pump 76 and the bottom inlet 68a / outlet 68b of the rinsing tank 64 is omitted in the drawing.

The immersion tank 60 includes a propeller-type stirrer 78. In addition, a liquid replenishing bowl 80 with a built-in pump is attached to the front side of the immersion tank 60, and a drain pipe 82 is attached to the bottom.

  The drip device 54 includes a drip tank 84 in which a plurality of air nozzles 86A and 86B (see FIGS. 7A and 7B) arranged up and down toward the axial center are provided, and the workpiece W has a height of the air nozzle. Within a range, it is possible to move up and down repeatedly for a short stroke.

  Here, the air nozzle 86 </ b> A includes a discharge port so that the air nozzle 86 </ b> A can inject from the up / down / front / rear / left / right directions. Air can be injected into the air nozzle 86 from a hot air generator 90 through a tank-type air pipe 92 having a rectangular cross section.

  In addition, the structure of the raising / lowering member 62B is the same as that of the above-mentioned raising / lowering members 62 and 62A.

  Further, in the present embodiment, the water washing device 52 and the dipping device 48 are arranged on the rear side in the workpiece movement direction such that a plurality of air nozzles 86A can be jetted to the workpiece W from four sides around the workpiece W. A drip removal (preliminary drip) device is attached. As described above, these air nozzles 86B are also connected to the hot air generator 90 via the tank type air pipe 92A. A protective hood 88 surrounding the work and the air nozzle 86B is disposed.

  The drying device (drying means) 50 covers a plurality of pairs of air nozzles (air injection members) 86B arranged along the work flow direction and the air injection member 86B together with the work moving along the air injection member 86B. The air injection member is connected to the hot air generator through a tank type piping unit 92. Further, the workpiece entrance / exit side wall 96 of the drying hood 94 is configured to include a minimum passage opening 96a through which the workpiece can pass.

  Each air nozzle 86 is formed of a copper pipe so that the air ejection direction can be adjusted.

  In addition, sensors including various position switches are arranged in this apparatus. The explanation of the operation is obvious to those skilled in the art and will be omitted.

  For example, a position switch pair 95 that restricts the stroke is attached to each air cylinder 63 and clamp cylinder 47 that raise and lower the workpiece at each station, and a transmissive sensor pair 96 is arranged at each station. Reference numeral 97 denotes a short stroke regulation intermediate proximity sensor at the dropping station. Reference numeral 98 denotes a level sensor (liquid level meter), and 99 denotes a temperature sensor (thermometer).

  Next, usage modes of the above embodiment will be described.

  First, after filling the rinsing tank 64 with water, the sheathed heater 66 is turned on, and the circulating pump 76 is operated to make hot water or hot water (for example, 30 to 80 ° C.) in the rinsing tank 64. Further, after the immersion tank 60 is filled with a lubricant layer forming agent (chemical solution), the continuously variable agitator 78 is put into an operating state. The drive chain device 14, the hot air generating device 90, the air cylinders 63, 63, 63 for the lifting members 62, 62A, 62B and the clamp cylinder 47 for the jig clamping device 46 are made operable by each cylinder control signal. .

  First, the workpiece loading / unloading robot 58 causes the workpiece W to be loaded into the workpiece loading / unloading position S, and the workpiece moving device 12 is driven by the drive chain device 14 to position the workpiece holding jig 36. In this state, the clamp cylinder 47 of the clamp device 46 is operated to clamp and stabilize the workpiece holding jig 36, and then the clamp 58a of the workpiece loading / unloading robot 58 is released. Then, the work W falls by its own weight onto the work holding jig 36. At this time, the outer periphery of the upper end of the set column portion 36b of the workpiece holding jig 36 and the inner side of the tip claw portion of the radiation receiving portion 36a are guide slopes, so that the workpiece W is substantially concentric with the workpiece holding jig 36. Retained.

  Subsequently, after the clamp cylinder 47 is operated to release the clamp of the work holding jig 36, the speed reducer motor 22 of the work transfer device 12 is operated for a predetermined time (for example, 1 s) and stopped for a predetermined time (for example, 10 s). Then, the plurality of workpiece holding members 16 are conveyed in synchronization between the positions of each station (hot water washing / dipping / dropping) and stopped at each station for a predetermined time.

  At this time, in each station, the engaging roller 44 of the work holding member 16 is located in the roller receiving portion 68 of each of the elevating members 62, 62A, 62B. In this state, when the elevating cylinder (air cylinder) 63 of the elevating member is operated to advance (lower) the piston rod, the work holding member 16 is suspended through the engagement of the engaging roller 44 by the roller receiving portion 68. Descend while being lowered. Then, it is lowered to a predetermined position and stopped for a predetermined time (for example, 3 to 5 seconds) or reciprocated for a short stroke. Thereafter, when the air cylinder 63 of the elevating members 62, 62A, 62B is operated again to retract (up) the piston rod, the work holding member 16 is engaged with the roller receiving portion 68 of the engaging roller 44 as described above. The roller receiving portion 68 returns to the position where the guide rail 30 is formed, and the engagement roller 44 can travel on the guide rail 30.

  Here, in the water washing station, the water temperature of the water washing tank 64 may be normal temperature, but it is desirable to use hot water of 30 ° C. or higher. This is because the cleaning effect is enhanced. Further, by setting the washing tank 64 as warm water, the chemical solution in the immersion tank 60 is warmed, and uniform application to the workpiece W becomes possible, and the drying efficiency is further improved. In addition, pure water with good detergency may be used as water.

  In addition, in the drip-cutting, the drip-cutting property is improved by moving the air nozzle 86 up and down from the upper and lower sides of the surrounding area in a short stroke up and down to improve the drip-cutting property and the leveling property of the lubricating layer. Formation is possible. In addition, although the air temperature of dropping is good also as normal temperature, a warm air (40 degreeC or more) becomes better in dropping performance.

  Thus, hot water washing (water washing), immersion and drip cutting are performed at each station.

  In addition, between the hot water washing (water washing) station and the dipping station, and between the dipping station and the drip cutting station, the dripping (dropping) of the work after hot water washing and after dipping is performed by air blow. This drop-cutting between stations makes it possible to form a lubricating layer with good leveling properties.

  After passing through these stations, the work is transferred to the drying station and baked or dried. At this time, since each drying air nozzle 86B is air blown through the tank type pipe 92B, the pressure loss is small compared to the pipe type pipe and it is easy to ensure the amount of dry air.

  At this time, the temperature of the hot air from the hot air generator 90 is set to 20 to 150 ° C., preferably 40 to 120 ° C., at the drop-cutting and drying (baking) air nozzle exit. Here, it is desirable to carry out the adjustment while adjusting the strength of the air blow and the atmospheric temperature, as described above, since it is easy to ensure the leveling property (uniformity) of the coating film. This is because a particularly high leveling property is required when cold working (forging, pressing, rolling, etc.) is performed.

  Thus, the workpiece that has undergone the drying process is positioned again at the loading / unloading station S, and the workpiece holding jig is stabilized by the jig clamping device, and the workpiece (processed product) is loaded by the workpiece loading / unloading robot. ) Is carried out, and further, a work (unprocessed product) is carried in, and each process is repeated.

  In addition, the operating conditions in the above are performed according to a time chart as shown in FIG. 8, for example.

It is a flowchart which shows an example of the lubricating layer formation process of the conventional metal raw material. It is the front schematic which removed the front hood in an example of the continuous immersion treatment apparatus in the present invention. FIG. 3 is a schematic side sectional view of FIG. 2. Similarly, it is a schematic plan view. It is a perspective view of the workpiece holding jig used in this embodiment. It is equipment arrangement | positioning figure of the continuous immersion processing apparatus in this embodiment. A and B are a schematic elevation cross-sectional view (rear side omitted) and a schematic plan cross-sectional view showing an arrangement mode of air nozzles in the drip cutting device according to the present embodiment, respectively. It is a time chart in one Embodiment of the continuous immersion treatment apparatus of this invention.

Explanation of symbols

12 Work moving device (work moving means)
14 Drive chain device (endless drive member)
16 Work holding member 30 Guide rail 32 Guide block 36 Work holding jig 44 Engagement roller 48 Immersion device 50 Drying device 52 Drip removal device

Claims (9)

A continuous immersion treatment device for continuously applying immersion treatment to a workpiece,
An endless work moving means for circulating and moving the work is provided, and a position around the work moving means is defined as a work loading / unloading position, and the work loading / unloading position is sandwiched between the dipping means and the drying means in order of the work moving direction. Is arranged,
The work moving means includes an endless drive member and a work holding member attached to the endless drive member at a predetermined pitch so as to be movable up and down.
The said immersion means is equipped with the immersion tank and the raising / lowering member for immersion which is distribute | arranged above this immersion tank and raises / lowers the said work holding member, The continuous immersion processing apparatus characterized by the above-mentioned.   Furthermore, a water washing means is provided on the front side in the workpiece moving direction of the dipping means, the water washing means is provided with a water washing tank, and a water washing raising and lowering member arranged above the water washing tank to raise and lower the work holding member, The continuous immersing apparatus according to claim 1, wherein the rinsing tank includes the immersing tank and includes a temperature control means.   The dipping means further includes drip cutting means on the rear side of the moving direction of the work, and the drip cutting means includes a drip cutting tank in which a plurality of air nozzles arranged up and down toward the axial center are provided. The continuous immersion treatment apparatus according to claim 1, wherein the apparatus can be repeatedly raised and lowered within a range of the air nozzle arrangement height. An annular guide rail is provided above the endless drive member so as to correspond to the outer periphery locus,
The work holding member is attached to the endless drive member so as to be integrally movable at a predetermined pitch, and is attached to a vertical movement rod fitted and supported by a guide block having a guide hole in the vertical direction, and attached to a lower end of the vertical movement rod. A workpiece holding jig, and a sliding portion that slides on the guide rail at an upper end of the vertical movement rod, and the workpiece holding member is allowed to circulate,
The continuous member according to claim 1, 2 or 3, wherein the elevating member comprises a roller receiving portion that constitutes a part of the guide rail when ascending, and a driving means that drives the roller receiving portion up and down. Immersion processing equipment.   The continuous immersing apparatus according to any one of claims 1 to 4, wherein a plurality of air nozzles are arranged on the rear side in the movement direction of the water washing means and the dipping means so that air can be jetted onto the work. .   The drying means includes a plurality of pairs of air nozzles arranged along the work flow direction, and a drying hood that covers the work moving along the air nozzles, and the air nozzle is connected to a tank-type pipe. The continuous immersion treatment apparatus according to any one of claims 1 to 5.   The continuous immersion treatment apparatus according to claim 1, wherein the continuous immersion treatment apparatus is used for forming a lubricating layer of a metal material for plastic working.   In a lubrication layer forming treatment method including a hot water washing step of a metal material (work) for plastic working, a dip coating step of a lubricant layer forming agent, and a drying step, the workpiece is blown at the air blowing portion while air is blown in a plurality of stages. A continuous dipping treatment method characterized in that a drip removal step of raising and lowering a short stroke is performed between the dip coating step and the drying step.   The continuous dipping treatment method according to claim 8, wherein the drying step subsequent to the dripping step is performed while adjusting the strength of air blow and the atmospheric temperature.

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