JPS6340879B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an article support equipped with a device for preventing floatation of objects to be processed, and more particularly, the present invention relates to an article support equipped with a device for preventing floating of objects to be processed, and more specifically, to place an object to be processed on the article support and lowering the object into a processing liquid. The present invention relates to an article support device with an anti-floating device for preventing the object to be treated from separating from the article supporter due to the buoyant force generated during immersion.

[Prior art]

Currently, for example, in the degreasing process and chemical conversion process as pre-treatment for painting automobile bodies, full-deep treatment methods in which the automobile body is placed on an article support and completely immersed in the treatment liquid are widely used. There is. In addition, in the electrodeposition coating method that is widely practiced as a rust-preventing coating for automobile bodies, a method is used in which the body of an actual vehicle is placed on an article support and completely submerged during the electrodeposition coating. .

However, in the former full-deep treatment method, when placing an automobile body on an article support and placing it in a full-deep tank, the treatment liquid does not immediately reach every corner of the automobile body immediately after entering the tank, so it is confined. The air exerted a force to lift the car body, causing separation between the car body and the article support. As a result, the relative position between the car body and the article support is no longer maintained, and the car body floats up and collides with the article support, damaging the article support and the car body, and in the worst case, the car body There is a problem with the product falling off from the article support.

In addition, in the latter electrodeposition coating method, not only does the above-mentioned separation occur, but also the electric current is supplied to the car body by an article support, and the current is generally a large current, so the above-mentioned separation occurs. There is a problem in that sparks are generated when separated, and the resulting heat damages the automobile body and article support.

In order to eliminate the above-mentioned problems, the following measures have been taken as conventional floating prevention means.

(1) A method of reducing the resistance of the treatment liquid by reducing the angle at which the car body enters the treatment liquid tank.

(2) A method in which the speed at which the car body enters the treatment liquid tank is slowed down to gradually expel the air trapped in the car body.

(3) A method of connecting the vehicle body and the article support with chains, wires, etc. to prevent the vehicle from floating. (4) A method of connecting the vehicle body and the article support with chains, wires, etc. to prevent the vehicle from floating. , a method of providing a locking mechanism that latches onto a groove, etc.

However, in the case of (1), the treatment liquid tank for immersing the automobile body must be extremely long, and the amount of treatment liquid increases accordingly. In the case of (2), there is a problem that the production volume decreases because the speed at which the car body enters the tank is slow. Furthermore, in the case of (3), it is necessary for a worker to tie the automobile body to the article support, and there is a problem that automation is not possible. Furthermore, in the case of (4), not only does the operation of the locking mechanism deteriorate due to the adhesion of treatment liquids such as electrocoated paint, but also the locking mechanism is specialized and cannot be used for automobile bodies with different shapes. In addition, there is a problem that it cannot be used for automobile bodies that do not have hooking parts such as holes and grooves.

[Purpose of the invention]

The present invention has been made in order to solve the above-mentioned problems, and its purpose is to use a presser that utilizes the inclination of the article support when the workpiece placed on the article support enters the processing liquid. It is an object of the present invention to provide an article support device with a device for preventing floating of a workpiece, which can prevent the workpiece from floating up by a mechanism and prevent damage to the article support and the workpiece.

[Structure of the invention]

In order to achieve the above object, the structure of the article support device with an anti-floating device for a processed object according to the present invention is such that a main column extending in the transport direction of the processed object is provided with a main column at both ends thereof so as to intersect with the main column. An article support comprising a horizontal pillar, a main pillar swingably suspended from both ends of the horizontal pillar, and a support pillar extending to the opposite side at the lower end of the main pillar. A shaft member is provided near the tip of the main pillar of the article support so as to intersect with the main pillar, and arms that swing in the front-rear direction of the main pillar are provided at both ends of the shaft member, and A hooking member is provided at the tip of this arm.

[Action of the invention]

In such an article support equipped with a device to prevent floating of the workpiece, when the workpiece placed on the article support is immersed in the processing liquid, the article support moves downward in the transport direction together with the workpiece. tilt towards. Accordingly, the arms swingably provided at both ends of the shaft member swing in a pendulum-like manner due to their own weight and attempt to maintain the vertical position. Therefore, the hooking member provided at the tip of the arm comes into contact with a portion of the object to be processed that starts to float, thereby preventing it from floating up from the article support.

Then, when the object to be processed is completely immersed in the processing liquid and the object support is kept horizontal, the arm swings like a pendulum due to its own weight and is kept perpendicular to the shaft member. As a result, the contact between the hanging member provided at the tip of the arm and the object to be processed is automatically released.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

FIG. 1 is a schematic side view of a processing device illustrating an article support device with a device for preventing floatation of objects to be processed according to the present invention;
FIG. 2 is an enlarged perspective view of an article support device with a device for preventing floatation of objects to be processed according to the present invention, FIG. 3 is an enlarged side view of the circle A in FIG. 1, and FIG. It shows an enlarged front view inside the circle.

[Configuration of Example]

In FIGS. 1 to 4, reference numeral 1 denotes a boat-shaped surface treatment tank, in which a surface treatment liquid H is stored. A conveyor rail 2 is disposed at the top of the surface treatment tank 1 in the longitudinal direction. This conveyor rail 2 is inclined downward from the loading side of the surface treatment tank 1 in order to convey the automobile body W which is the object to be treated, is formed horizontally above the surface treatment tank 1, and is formed horizontally on the loading side of the surface treatment tank 1. They are arranged so as to be tilted upward in sequence.

Further, a plurality of article supports 3 on which automobile bodies W are placed and conveyed are suspended from the conveyor rail 2 with rollers 4 interposed therebetween, and are conveyed in the direction of the arrow.

The article support 3 is fixed to hanging members 5a and 5b supported by rollers, as shown in FIG. 6 is fixed. Further, horizontal columns 7a and 7b are provided at both ends of the main column 6 so as to intersect with the main column 6, and at both ends, main columns 9a and 7b that swing inwardly and outwardly about a pin 8, 9b, 9c, and 9d are hanging down. Further, at the lower ends of the main columns 9a, 9b, 9c, 9d, support columns 10a, 1 extending toward opposite sides are provided.
0b, and hooks (not shown) for preventing the automobile body W from shifting laterally are provided on the upper surface near the tip thereof.

Further, near the tip of the main pillar 6, a holding mechanism 11 is provided to prevent the automobile body W from floating up on a platform immersed in the surface treatment liquid H. As shown in FIGS. 3 and 4, this presser mechanism 11 is provided with a shaft member 13 interposed between a support member 12 so as to intersect with the main column 6, and a cylindrical body 14a located near both ends of the shaft member 13. , 14b are loosely inserted and rotated with respect to the shaft member 13. Also,
Washers 15 are provided at both ends of the cylindrical bodies 14a and 14b.
a, 15b, 15c, and 15d are provided respectively, and pins 16a and 16b are provided near the outer washers 15a and 15d, and the cylindrical body 14
a and 14b are designed to prevent them from falling out. Further, arms 17 are provided on the lower surfaces of the cylindrical bodies 14a and 14b.
a and 17b are provided, and the length thereof is such that when the automobile body W is placed on the article support 3, the upper end surface of the cowl upper panel Wa is located at substantially the same position. And this arm 17
Hooking members 18a and 18b each having an inverted L-shaped cross section are provided at the tips of a and 17b. As a result, the arms 17a, 17b and the hanging member 1
8a and 18b swing in the front-rear direction of the main column 6 using the shaft member 13 as a fulcrum, and the hanging members 18a and 18b come into contact with the cowl upper panel Wa of the lower W of the automobile. In addition, 19 is the main pillar 9c, 9d
It is a reinforcing member installed in the main pillars 9a, 9.
A reinforcing member (not shown) is also installed between b.

[Effect of the embodiment]

The operation of the article support with a device for preventing floatation of the object to be processed constructed as described above will be explained.

First, an automobile body W, which is an object to be processed, is transported by a trolley or the like (not shown) below the article support 3 suspended from the conveyor rail 2, and the main pillar 9a of the article support 3, 9b, and 9
c, 9d are opened widely outward using pin 8 as a fulcrum. In this state, the article support 3 is lowered and positioned at the center of the article support 3 of the automobile body W. At this time, the holding mechanism 11 is suspended perpendicularly to the shaft member 13 due to its own weight, and is in a free state of contact with the automobile body W.

Next, the main pillars 9a, 9b and 9 of the article support 3
c and 9d are contracted inward using the pin 8 as a fulcrum and returned to their original positions, and the article support 3 is gradually pulled upward. Eventually, the automobile body W is supported by the support columns 10a and 10b, and the placement on the article support 3 is completed. At this time, the holding mechanism 11 is suspended perpendicularly to the shaft member 13 as described above, and is in a free contact relationship with the automobile body W.

The article support 3 on which the automobile body W is placed is conveyed to the loading side of the surface treatment tank 1 by the conveyor rail 2 in the direction of the arrow, and the article support 3 is inclined downwardly on the conveyor rail 2. gradually transported to Accordingly, the arms 17a and 17b, which are swingably provided at both ends of the shaft member 13, swing in a pendulum shape with the shaft member 13 as a fulcrum due to their own weight, and try to maintain verticality. For this reason, the latching members 18a and 18b provided at the tip of the arm
comes into contact with the cowl upper panel Wa of the automobile body W.

At the same time, the automobile body W is gradually immersed in the surface treatment liquid H. At this time, a buoyant force acts on the automobile body W and it tries to float, but the holding mechanism 11
Since the hanging members 18a and 18b are in contact with the cowl upper panel Wa, floating is prevented.
As a result, the automobile body W will not separate from or fall off from the article support 3, and will be supported reliably.

When the automobile body W is immersed in the surface treatment liquid H and the article support 3 is kept horizontal, the arms 17a and 17b swing in a pendulum shape due to their own weight, and are perpendicular to the shaft member 13. is maintained. As a result, the contact relationship between the locking members 18a, 18b provided at the ends of the arms 17a, 17b and the automobile body W is automatically released. Then, the automobile body W that has been immersed in the surface treatment liquid H and has been completely treated is carried out from the surface treatment tank 1 along with the article support 3 by the conveyor rail 2 and transported to the next process.

〔Effect of the invention〕

As explained above, in the article support device with a device for preventing floatation of objects to be processed according to the present invention, a shaft member is provided near the tip of the main column of the article support so as to intersect with the main column. Arms that swing in the front-rear direction of the main pillar are suspended from both ends of the shaft member, and
Since the hooking member is provided at the tip of this arm, it is possible to suppress the lifting that occurs when the object to be processed is immersed in the processing liquid, and to reliably prevent separation between the object support and the object to be processed. There is.

Furthermore, in the present invention, by suppressing the lifting of the object to be processed, collision between the article support and the object that occurs due to the lifting of the object is prevented, and the object is also prevented from colliding with the object. This has the effect of preventing damage to the processed material.

In addition, by suppressing the floating of the objects to be processed, there is no need to consider the angle and speed at which the objects enter the processing solution, so the processing solution tank can be made extremely short, and the processing It also has the effect of reducing the amount of liquid.

In addition, in the present invention, since the holding mechanism for the workpiece is provided near the tip of the main column, it is possible to smoothly load and unload the workpiece, and it is possible to smoothly load and unload the workpiece. It has the effect of automating a series of tasks.

Further, in the present invention, since the holding mechanism for the object to be processed is provided near the tip of the main column, there is no need to provide a special hooking member such as a hole or groove to prevent the object from floating up. There is an effect that it can be applied to objects to be processed having different shapes.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing a processing apparatus for explaining an article support device with a device for preventing floatation of objects to be processed according to the present invention. FIG. 2 is an enlarged perspective view of an article support device with a device for preventing floatation of objects to be treated according to the present invention. Third
The figure is an enlarged side view showing the presser mechanism within the circle A in FIG. 1. FIG. 4 is an enlarged front view showing the presser mechanism in the circle A in FIG. 1. 1...Surface treatment tank, 2...Conveyor rail, 3
...Article support, 4...Rollers, 5a, 5b...
...Hanging member, 6...Main pillar, 7a, 7b...Horizontal pillar, 8
...Pin, 9a, 9b, 9c, 9d...Main pillar, 1
0a, 10b...Support column, 11...Press mechanism, 1
2...Supporting member, 13...Shaft member, 14a, 14
b... Cylindrical body, 15a, 15b, 15c, 15d
...Washiya, 16a, 16b...Pin, 17
a, 17b...arm, 18a, 18b...hanging member, 19...reinforcement member.

Claims (1)

[Claims] 1 At both ends of the main column extending in the conveyance direction of the processed material,
A horizontal pillar is provided to intersect with this main pillar, and the main pillar is swingably suspended from both ends of this horizontal pillar, and a support pillar is provided at the lower end of this main pillar that extends to the opposite side. A shaft member is provided near the tip of the main pillar of the article support so as to intersect with the main pillar, and a shaft member is provided at both ends of the shaft member to swing in the front-rear direction of the main pillar. 1. An article support device with a floating prevention device for an object to be processed, characterized in that a hanging arm is provided and a hooking member is provided at the tip of the arm.