JPH0810393Y2 - Surface treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a surface treatment apparatus for sequentially performing a surface treatment such as a degreasing treatment, a chemical conversion treatment and an electrodeposition treatment on a work such as an automobile body.

(Prior Art) Conventionally, according to Japanese Patent Laid-Open No. 63-229167, a work is conveyed by a hanger conveyor onto a line in which stations having a treatment tank for immersing the work are arranged in the plurality of stages,
A batch-type surface treatment apparatus is known in which the conveyance of a work is stopped at each station to be moved into and out of the treatment tank.

In this case, in order to prevent foreign matter such as dust from entering the processing tank, it is considered to fit the entire line in the booth.

(Problems to be solved by the invention) However, in this method, the booth becomes large in size, the equipment cost increases, the space efficiency becomes poor, and the line modification work such as the addition and replacement of the treatment tanks must be performed in the booth. There is a problem that the work becomes very troublesome.

SUMMARY OF THE INVENTION In view of the above points, the present invention has an object to provide a surface treatment apparatus having a small and simple dustproof structure that does not hinder line modification.

(Means for Solving the Problems) In order to achieve the above-mentioned object, in the present invention, a work is conveyed by a hanger conveyor onto a line in which stations equipped with treatment tanks for immersing the work are arranged in a plurality of front and rear stages, and each station is In a batch type surface treatment device in which the transfer of the work is stopped and the work is moved into and out of the processing tank, the upper surfaces of the plurality of processing tanks of these stations are covered on the line so as to surround the work transfer space. The booth frame was suspended from the ceiling, related equipment including various tanks and pumps was arranged in a side space on one side of the line, and the processing tank could be taken out on the side opposite to the side where the related equipment was arranged.

(Operation) Since the upper surface of the processing tank is covered with the booth frame, foreign matter is prevented from entering the processing tank.

Further, since the booth frame does not cover the entire processing tank, it can be made compact and simple, and since the bundling booth frame is installed on the ceiling, the processing tank can be freely put in and out of the space below the booth frame from the side. This makes it possible to perform line modification work such as addition and replacement of processing tanks without being disturbed by the booth frame.

Further, since the treatment tank can be taken out to the side opposite to the side where the related equipment is arranged, the related equipment does not interfere with the line modification work.

(Example) FIGS. 1 and 2 show a batch-type surface treatment line in which degreasing treatment, chemical conversion treatment, and electrodeposition treatment are sequentially performed on an automobile body W which is a work. The vehicle body W is degreased by the first station S ₁ for degreasing treatment by the respective hangers (4) of the hanger conveyor (3) arranged in a loop between (1) and the payout work place (2) on the other end side. , A second station S ₂ for washing, a third station S ₃ for chemical conversion treatment, a fourth and a fifth station S ₄ for washing,
S ₅ , sixth to eighth stations S ₆ and S ₇ for draining water,
S ₈ , 9th station for electrodeposition processing S ₉ , 1st for water washing
0, 11th station S ₁₀ , S ₁₁ are conveyed in this order, the movement of the hanger (4) is stopped at the 1st to 5th stations and the 9th to 11th stations, and the vehicle body W is arranged at each station. The tank body (5) was put in and out, and the vehicle body W was subjected to the required treatment.

As shown in FIGS. 3 and 4, the hanger (4) is a pair of left and right conveyor rails (3a) suspended from the ceiling (6).
A pair of left and right hanger frames (4b) and (4b), which are respectively rotatably suspended by rollers (4a), are attached to (3a), and a laterally long support frame (4c) is attached to the lower ends thereof. Then, the hanger (4) is made to run along the conveyor rails (3a) (3a) by the traveling unit (4f) equipped with the motor (4e) controlled by the controller (4d), and the hanger (4) is moved. In addition, a jig (7) which is long in the lateral direction and holds the vehicle body W is hung up and down and is rotatably suspended around a horizontal axis in the lateral direction. To explain this in detail, a pair of sprockets (8) and (8) are placed on both ends of the jig (7) on the same horizontal axis.
And the chains (9) and (9) are wound around the sprockets (8) and (8), respectively, and mounted on one of the pair of hoisting machines (10) and (10) mounted on the hanger (4). Both chains (9)
One end of (9) and the other end of both chains (9) and (9) are connected to each other, and both hoisting machines (10) and (10) are rotated together in the payout direction or the winding direction, so that the jig By lowering or raising (7) to move the vehicle body W held by it into and out of the processing tank (5), and further rotating both hoisting machines (10) and (10) in opposite directions, it is possible to cure. The tool (7) is rotated about the horizontal axis so that the vehicle body W can be rolled over.

In order to prevent the jig (7) from swinging when moving up and down,
A pair of guide frames (11) and (11) that engage with the shaft portions (8a) of the sprockets (8) and guide the lifting and lowering of the jig (7) are set up at both ends of the processing tank (5). Set up, on the other hand, hanger (4)
A pair of guide frames (12) and (12) that engage with the shaft portion (8a) are vertically installed at both ends of the support frame (4c) of the jig to prevent the jig (7) from swinging during transportation. I tried to prevent it.

A booth frame (13) extending from the first station S ₁ to the eleventh station S ₁₁ is provided on the line in a ceiling-mounted manner, and as shown in FIG.
The upper surface of the processing tank (5) is covered so as to surround the transfer space of the vehicle body W so that foreign matter can be prevented from entering the processing tank (5), and further, the conveyor rails (3a) (3a) are attached to a booth frame. The booth frame (13) is arranged above the (13) so that foreign matter such as oil falling from the rail (3a) can be received by the booth frame (13). The booth frame (13) is divided into three left and right side portions (13a) (13a) that surround the transport space from a side to a part above, and an intermediate portion (13b) located at the upper center of the transport space. The side portions (13a) and the intermediate portion (13b) are respectively suspended from the supporting legs (6a) suspended from the ceiling portion (6), and the hanger frames (4b) of the hanger (4) are suspended. ) Is hung on each conveyor rail (3a) through a slit (13c) formed between each side portion (13a) and the intermediate portion (13b).

Further, a shield plate (4) is provided on the lower surface of the support frame (4c) of the hanger (4).
g) is attached so that foreign matter such as oil falling along the hanger frame (4c) can be prevented from falling onto the vehicle body W or the processing tank (5).

Referring to FIG. 2, the related facilities (14) including various tanks and pumps are arranged in the side space on one side of the line, and the guide frame (11) standing on each treatment tank (5) is removed. Flexible and internal piping (5a) of the processing tank (5)
The joint (5b) with respect to the external pipe is installed in a direction that does not hinder the lateral movement of the treatment tank (5), and thus the treatment tank (5) is located on the side opposite to the arrangement side of the related equipment (14), that is, the third side.
It was taken out to the right in the figure and replaced so that it could be obtained.

In the washing station, when the vehicle body W is washed from the treatment tank (5) after showering from the treatment tank (5) as a finishing step of washing with water, a portion of the booth frame (13) corresponding to each station is shown in FIG. As shown by a phantom line, a shower head (15) having a large number of nozzles (15a) is attached.

(Effect of Device) As is apparent from the above description, according to the device of claim 1, the upper surface of the processing tank is covered with the booth frame provided on the line so as to surround the work transfer space. Therefore, foreign matter can be prevented from entering the processing tank without hindering the entry and exit of the work into and from the processing tank, and the booth frame can be made compact and simple unlike a booth that surrounds the entire processing tank. As a result, equipment costs can be reduced and space efficiency can be improved, and line modification work such as replacement and addition of processing tanks can be performed without being hindered by the booth frame and related equipment, and workability of line modification is improved. improves.

[Brief description of drawings]

1 is a side view of an example of the device of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view taken along the line III-III of FIG. 1, and FIG. 4 is a sectional view taken along the line IV-IV of FIG. It is a side view. W …… Car body (work) S _{1 to} S ₁₁ …… Station (3) …… Hanger conveyor (3a) …… Conveyor rail (4) …… Hanger (5) …… Treatment tank (13) …… Booth frame ( 13c) …… Slit

Claims (1)

[Scope of utility model registration request] 1. A work is conveyed by a hanger conveyor on a line in which stations equipped with a treatment tank for immersing the work are arranged in a plurality of stages in front and rear, and at each station, the conveyance of the work is stopped and the work tank is moved into and out of the treatment tank. In such a batch type surface treatment device, a booth frame that covers the upper surfaces of the plurality of processing tanks of these stations so as to surround the work transfer space is provided on the line in a suspended manner, and one side of the line is installed. A surface treatment apparatus characterized in that related facilities including various tanks and pumps are arranged in a space, and the treatment tank can be taken out on the side opposite to the side where the relevant facilities are arranged.