JPH0248639B2 - ZENJIDOMETSUKISOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for fully automatically plating a rod-shaped object to be plated.

[Prior Art] Conventionally, an elevator-type automatic plating device for automatically plating a rod-shaped object to be plated without using a barrel has generally been used.

Elevator-type automatic plating equipment performs pre-treatment, plating, This is for post-processing.

[Problems to be Solved by the Invention] However, according to the above-mentioned conventional elevator-type automatic plating device, when plating a rod-shaped object to be plated, the object to be plated is held vertically and moved up and down into each liquid tank. In order to carry out immersion and lifting, the height of the elevator and the depth of the liquid tank must be increased, and even with automation, the running becomes intermittent and there is a problem that there is a limit to processing capacity.

Furthermore, since the depth of the liquid tank is large, it is difficult to respond appropriately to changes in the concentration and temperature of the chemical liquid, or to deterioration thereof, during operation, resulting in the problem that the line has to be temporarily stopped.

Therefore, the present invention reduces the lifting and lowering stroke of the rod-shaped object to be plated that is immersed in and pulled up from the liquid tank, and enables continuous horizontal movement of the object to be plated, thereby improving the throughput of the liquid tank. The present invention aims to provide a fully automatic plating device that enables shallowing of the bottom and automatic adjustment of the concentration of chemical solutions, etc.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the fully automatic plating device of the present invention has a liquid tank group in which a large number of relatively shallow liquid tanks each having an overflow weir are arranged horizontally in a straight line. , a storage tank group consisting of a large number of storage tanks arranged below each tank to store the overflow liquid from each tank, so that the stored liquid is gently circulated to the bottom of the upper tank. and are arranged in a loop along both sides of the liquid tank group,
A pair of chains that are driven almost horizontally so that the lower side of the loop moves up and down as it passes between adjacent liquid tanks, and a number of support rods that are electrically insulated and suspended horizontally between the chains on both sides. , at least one pair of L-shaped hooks fixed to each support rod so as to horizontally support a rod-shaped object to be plated when each support rod is positioned on the lower side of the chain; and L-shaped hooks on both sides. and power supply terminals disposed above both sides of a liquid tank in which electrodes are housed in order to supply power by sliding into contact with the liquid tank.

[Operation] Liquids such as chemicals overflowing from the overflow weir of each liquid tank are stored in the lower storage tank and then gently circulated to the bottom of the upper liquid tank via a pump or the like. Therefore, in the upper liquid tank, the liquid level in the liquid tank is always kept constant, and the concentration and temperature of the liquid are made uniform due to the gentle upward flow of the liquid.

On the other hand, the rod-shaped object to be plated, which is supplied at one end of the liquid tank group and supported horizontally on the L-shaped hook located at the lower side of the loop, cannot move horizontally unless it straddles between adjacent liquid tanks. The product is immersed in each liquid tank for the required time, subjected to pre-treatment, plating treatment while receiving power from the power supply terminal, and post-treatment, and then taken out as a product from an L-shaped hook at the other end of the liquid tank group.

[Example] An example of the fully automatic plating device of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 are a side view and a plan view of a fully automatic plating apparatus 1 for galvanizing a rod-shaped object W to be plated (see FIG. 3).

The fully automatic plating device 1 is linear, and has an automatic supply device 2 attached to one end (the left end in the figure) for automatically supplying the object to be plated, and a plated object (product) not shown at the other end. An automatic take-out/drying device 3 is attached for automatically taking out and drying.

4 is a linear frame; frame 4 is
As shown in FIGS. 1 to 3, a plurality of opposing pairs of side columns 5a, 5b, a base plate 6 connecting the lower portions of both side columns 5a, 5b, and an intermediate between the side columns 5a, 5b on both sides. A shelf board 7 connecting the sections, side pillars 5a on each side,
It is composed of girder plates 8a and 8b that connect the upper part of 5b.

On the shelf board 7 is placed a liquid tank group 10 consisting of a large number (11 in this embodiment) of relatively shallow liquid tanks 10a, 10b, 10c, . . . having an overflow weir 9 on the front or side surface. Each liquid tank 10a,
10b, 10c... accommodate solvents, water, plating baths, etc. for pre-treatments such as degreasing, washing with water, plating processing, washing with water, post-processing such as Unichrome, etc.
It has a length corresponding to each processing time, and is appropriately spaced apart in the longitudinal direction of the frame 4 (the left-right direction in FIGS. 1 and 2).

On the other hand, each liquid tank 10 of the liquid tank group 10 is placed on the substrate 6.
A large number of storage tanks 11a, 11b, 11c... that store overflow liquid from a, 10b, 10c...
A storage tank group 11 consisting of the following is placed. Each storage tank 11a, 11b, 11c... is connected to each liquid tank 10a,
A pump (not shown) or the like is provided, which maintains the same length and spacing as the liquid tanks 10b, 10c, etc., and gently circulates the stored liquid (overflow liquid) to the bottom of the corresponding liquid tank 10a, 10b, 10c,... have.

On both sides of one end and the other end of the frame 4, first
Fig. 2 and the fourth diagram omitting the side columns 5a, 5b, etc.
As shown in the figure, a driven sprocket 12 and a driving sprocket 13 are attached. The driven sprocket 12 is movably provided to adjust the tension of the chain, which will be described later, and the driving sprocket 13 is appropriately linked to a prime mover such as a motor (not shown). A loop-shaped chain 14 is wound between the driven sprocket 12 and the driving sprocket 13 on each side. The upper and lower sides of each chain 14 are
Figures 5a, b and 6 with enlarged main parts
As shown in the figure, each girder plate 8 is inserted through the angle material 15.
Upper guide rail 16 attached to the inside of a and 8b
a, 16b and lower guide rails 17a, 17b
You will be guided smoothly. Lower guide rail 17
a, 17b are bordered by a dashed line in FIG. 3, and the lower side of the chain 14 is each liquid tank 10a, 10b, 10c, as shown in FIG. When passing above..., the object W to be plated is immersed in the liquid,
Also, the lower side of the chain 14 is adjacent to the liquid tank 10.
When the object W to be plated passes above the liquid tanks 10a, 10b, 10
In order to avoid contact with the liquid tanks 10a, 10b, 10c, . . ., the chain 14 follows the movement locus shown in FIG. is provided.

Between the chains 14 on both sides, a large number of support rods 18 made of stainless steel are supported by L fittings 19 attached to the chains 14 and rectangular insulating blocks 20 made of hard plastic (see FIGS. 5a and 6). It is electrically insulated and suspended horizontally. As shown in FIGS. 3 and 7a and 7b, each support rod 18 has at least one pair (in the embodiment, five L-shaped hooks 21 at different intervals) of L-shaped hooks 21 made of gunmetal. 18 is located below the chain 14, the rod-shaped object W to be plated is horizontally supported by the support portion 21a at one end (the lower end in FIGS. 7a and 7b), and the fitting hole 22 at the other end It is fitted through. A sliding contact surface 23 that comes into sliding contact with a power supply terminal, which will be described later, is protrudingly provided on the outer side of the L-shaped hook 21 on both sides (outermost side) near the middle part. The other L-shaped hooks 21 existing between the L-shaped hooks 21 on both sides are electrically connected to the L-shaped hooks 21 on both sides by a copper connecting rod 24 that connects the respective intermediate portions. .

On the other hand, liquid tanks 10e and 1 for electrolysis and plating
On the inside of the side pillars 5a and 5b corresponding to 0h, there is a third
As shown in the figure, the terminal support stands 25a and 25b are provided to protrude almost horizontally, and the terminal support stands 25a and 25b on both sides
A power supply terminal 26 (see FIG. 8) is attached to the tips of a and 25b. The power supply terminal 26 supports the object W to be plated and connects it to the liquid tank 1 for electrolysis and plating.
This is for supplying power to the L-shaped hooks 21 on both sides that move within 0e and 10h, and is connected to the terminal support stand 25.
Two lead pipes 27, which are electrically insulated and horizontally spaced apart in the moving direction of the chain 14 (in the vertical direction in FIG. 8) are installed at the ends of the leads a and 25b, and a cap-shaped nut 28. A movable bolt 29 is slidably inserted into the tip of each lead pipe 27 to prevent separation, a sliding plate 30 is attached between the tips of both the movable bolts 29, and the sliding plate 30 is attached to the outermost L-shape. It is composed of a spring 31 elastically loaded inside each lead pipe 27 to press against the sliding surface 23 of the hook 21. The other electrode (not shown) corresponding to the object to be plated is housed at the bottom of the electrolytic and plating liquid tanks 10e and 10h.

In order to galvanize a bar-shaped object W to be plated using the fully automatic plating apparatus configured as described above, first, each liquid tank 1
0a, 10b, 10c... overflow from the overflow weir 9 and lower storage tanks 11a, 11
The overflow liquid stored in b, 11c... is pumped to each upper liquid tank 10a, 10b, 10c.
The motor is operated to run the chains 14 on both sides at a constant speed of about 1 m/min while circulating gently to the bottom of the...

Next, the automatic supply device 2 moves the rod-shaped object W to be plated onto the supporting portion 21 of the L-shaped hook 21 located on the lower side of the chain 14 at one end of the frame 4.
Place them one after another on a. As the chain 14 moves, the rod-shaped object W to be plated horizontally supported by the L-shaped hook 21 is moved to the adjacent liquid tanks 10a, 10b, 10.
c...Unless it straddles the lower guide rail 1
7a and 17b while moving horizontally, they are sequentially immersed in each liquid tank 10a to 10g for the required time and are subjected to pre-treatments such as degreasing, water washing, pickling, electrolysis, water washing, and acid neutralization, and are then used for plating. It is immersed in a liquid tank 10h and subjected to plating treatment, and then further immersed in a liquid tank 10i to 10k.
It is soaked in water, washed with water, and then subjected to post-treatment of Unichrome and water washing.

During this plating process, the outer diameter of the object W to be plated is approximately the same size as the support portion 21a of the L-shaped hook 21, as shown in FIGS. 7a and 7b, and therefore does not move.

During the electrolytic treatment and plating process, the sliding contact plate 30 of the power supply terminal 26 is pressed against the sliding surface 23 of the outermost L-shaped hook 21, and power is supplied to the object W to be plated, which is one electrode. Then, electrolytic treatment and plating treatment are performed with the other electrode housed at the bottom of the electrolytic and plating liquid tanks 10e and 10h.

The product that has been plated is automatically taken out from the L-shaped hook 21 located below the chain 14 by the automatic take-out/drying device 3 at the other end of the frame 4 and dried.

In addition, although the above-mentioned embodiment described the case where the bar-shaped object W to be plated is galvanized, it can also be applied to cases where copper plating, chrome plating, and other types of plating are performed.

[Effects of the Invention] As described above, the fully automatic plating device of the present invention provides the following effects compared to the prior art.

(1) Since the rod-shaped object to be plated is supported horizontally, the lifting distance of the object to be plated is shortened.
The object to be plated can be moved horizontally continuously, and as a result, the processing capacity, that is, the production amount can be greatly increased.

(2) Furthermore, since the rod-shaped object to be plated is supported horizontally, the depth of the liquid tank can be made shallow, and the amount of liquid such as chemical liquid can be reduced.

(3) An overflow weir is installed in each liquid tank, and the liquid that overflows from the overflow weir is temporarily stored in the lower storage tank, and the stored liquid is gently circulated to the upper liquid tank using a pump, etc., so that each liquid The liquid level in the tank can be kept constant at all times, and the gentle upward flow can equalize the concentration and temperature of the liquid, making it possible to equalize the plating thickness, remove sludge, and automatically adjust the concentration, etc. It becomes possible.

(4) Completely unmanned operation of the device is possible by installing an automatic feeding device and automatic unloading/drying device at both ends of the device.

[Brief explanation of drawings]

The figures show one embodiment of the fully automatic plating device of the present invention, and FIGS. 1 and 2 are side views and plan views of the fully automatic plating device, and FIG. 3 is the same as in FIG. 1.
4 is a side view of the fully automatic plating device with side columns etc. omitted; FIG. 5a is an enlarged view of the V section in FIG. 3; FIG. 5b is a side view thereof;
The figure is an enlarged view of the portion shown in FIG. 3, FIGS. 7a and 7b are a side view and a front view of the L-shaped hook, and FIG. 8 is a plan view of the power supply terminal. 4... Frame, 5a, 5b... Side pillar, 6...
Board, 7... Shelf board, 8a, 8b... Girder board, 9...
Overflow weir, 10...Liquid tank group, 10a-1
0k...Liquid tank, 11...Storage tank group, 11a-11
k...Storage tank, 14...Chain, 16a, 16
b... Upper guide rail, 17a, 17b... Lower guide rail, 18... Support rod, 20... Square insulation block, 21... L-shaped hook, 23...
Sliding surface, 25a, 25b...terminal support stand, 26...
... Power supply terminal, 27 ... Lead pipe, 28 ... Nut, 29 ... Movable bolt, 30 ... Sliding contact plate, 3
1...Spring, W...Object to be plated.

Claims (1)

[Claims] 1 A liquid tank group in which a large number of relatively shallow liquid tanks each having an overflow weir are arranged horizontally in a straight line, and a liquid tank is placed below each tank to store the overflow liquid from each tank. A storage tank group consisting of a large number of storage tanks that are arranged to be gently circulated at the bottom of the upper liquid tank, and a storage tank group that is arranged in a loop shape along both sides of the tank group, and the lower side of the loop is connected to the adjacent liquid. A pair of chains are driven almost horizontally to move up and down when passing between tanks, and a number of support rods are electrically insulated and suspended horizontally between the chains on both sides, and each support rod is connected to the chain. At least one pair of L-shaped hooks are fixed to each support rod so as to horizontally support the bar-shaped object to be plated when positioned on the lower side, and the L-shaped hooks on both sides are slidably contacted to supply power. A fully automatic plating device characterized by comprising power supply terminals arranged above both sides of a liquid tank in which an electrode is housed.