JP2837573B2 - Conveyor hanger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanger for a conveyor for transferring a work such as an automobile body in an automobile painting factory or the like.

[0002]

2. Description of the Related Art In a hanger of this type, a work such as an automobile body to be coated is mounted on a gate-shaped, C-shaped or L-shaped frame suspended on a conveyor rail to transfer a coating line. The frame is made of a thick metal rod to withstand the load of the workpiece.

[0003]

By the way, the surface of a work which is mounted on a hanger frame and transferred through a coating line is subjected to removal of a pretreatment liquid such as a degreasing liquid or the pretreatment liquid in a pretreatment step of coating. The washing water to be washed is showered, and the washing water for removing the excessively deposited electrodeposition coating liquid is also showered in the electrodeposition step. It hits the frame directly and crushes violently as if it were flipped back, and the pretreatment liquid or electrodeposition paint liquid attached to the surface of the frame scatters up to the ceiling surface of the shower zone, so the ceiling surface etc. is significantly contaminated. At the same time, the pretreatment liquid or electrodeposition coating liquid that has scattered and adhered to the ceiling surface or the upper part of the hanger grows into large droplets and falls onto the work transported by the hanger, causing the surface of the work to become contaminated. That.

[0004] A shower is generally composed of a plurality of riser pipes arranged in parallel at a fixed interval along the transfer direction of the work, and water discharged from each riser pipe toward the work is discharged. If it hits the hanger frame and breaks violently so that it is flipped back, the broken splashes collide with the water spray injected from other adjacent riser pipes and disrupt the water discharge pattern, so the direction of water discharge is At the same time, the momentum of water discharge is significantly reduced.

[0005] For this reason, the injection pressure of each riser pipe cannot be increased beyond a certain level, and there is a limit in enhancing the showering effect of the work. Therefore, the present invention reduces the amount of scattered droplets so that even when the shower water is jetted at a high pressure, the discharged water hits the hanger frame and is repelled, so that the force of the scattered droplets is also reduced. Is a technical issue.

[0006]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention provides a conveyor hanger for transferring a work mounted on a frame suspended on a conveyor rail when a shower is passed through a shower zone. A net that finely distributes the water discharged from the shower is stretched so as to cover the surface along the surface of the rod part of the frame where the water discharge hits, or the shower water is diverted backward instead of the net A pointed blade is provided.

[0007]

According to the present invention, when the water discharged from the shower hitting the frame of the conveyor hanger on which the work is mounted can be weakened by the buffering action of the net stretched over the surface of the rod portion of the frame. At the same time, the power is dispersed by being finely divided by the net, so that the power of the droplets hitting the surface of the rod portion and crushing is extremely weakened. Furthermore, the net that covers the surface of the rod part also serves as a resistor that prevents the splashing of splashes that hit the rod part and scatters, so the amount of splashes repelled from the rod part to the shower side is greatly reduced At the same time, the momentum of the splash is significantly reduced. Also, in the case where a pointed blade that deflects the water discharged from the shower to the rear is provided instead of the net, the amount of the splash repelled to the shower side is greatly reduced.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a front view showing an example of the overall configuration of a conveyor hanger according to the present invention and its use, FIG. 2 is a perspective view showing an example of a net stretched over a hanger frame, and FIG. 3 is a blade provided in place of the net. It is a perspective view showing an example.

In the conveyor hanger 1 shown in this embodiment, a frame 3 suspended on a conveyor rail 2 is formed in a C shape having an upper rod portion 3a, a side rod portion 3b, and a bottom rod portion 3c. A work 4 such as an automobile body is mounted on a horizontal bottom rod 3c which forms the lower end of the C-shaped frame 3. The frame 3 extends along the surface of the side rod portion 3b and the bottom rod portion 3c where the shower water is hit from a close distance when passing through a shower zone provided in a pretreatment step of coating or an electrodeposition step. A net 5 having a mesh of about 3 to 6 mesh through which the water discharged from the shower is made finer is stretched so as to cover the respective surfaces, or the water discharged from the shower is directly rearward as shown in FIG. There is provided a pointed blade 10 that deflects.

That is, as shown in FIG.
When water is discharged from the upper, lower, left and right directions by a shower comprising four riser pipes 6, 7, 8 and 9 to the work 4 transferred to the shower zone by being mounted on the work 4, The riser tubes 6 and 7 are arranged at positions facing the work 4 with the side rod portion 3b and the bottom rod portion 3c of the frame 3 interposed therebetween so as not to hinder the movement of the frame 3. For this reason, there is a possibility that the water discharged from the riser tubes 6 and 7 directly hits the side rod portion 3b and the bottom rod portion 3c of the frame 3 and the droplets are violently crushed, so that the surfaces of the rod portions 3b and 3c are removed. It is covered with a curved net 5 as shown in FIG. 2 or a V-shaped blade 10 as shown in FIG.

The net 5 and the blade 10 can easily remove the pretreatment liquid and the electrodeposition coating liquid adhering to the surface thereof with washing water, and are not corroded even if the pretreatment liquid such as a degreasing liquid adheres. It is made of stainless steel with good drainage, chemical resistance and heat resistance so that it can withstand the high heat of a paint drying oven. Further, in order to prevent water from being discharged to the work 4 as much as possible, it is formed into a shape that does not protrude beyond the diameter of the rod portions 3b, 3c when viewed from the water discharge direction of the riser tubes 6, 7.

When the net 5 is stretched along the surfaces of the side rod portion 3b and the bottom rod portion 3c, water discharged from the riser tubes 6 and 7 at a high pressure is discharged.
First, the net 5 is weakened by the buffering action of the net 5, and is then finely divided by the mesh of the net 5 to strike the surfaces of the rod portions 3 b and 3 c in a state where the power is dispersed. The force of the scattered droplets is significantly reduced. The splashes that scatter and bounce off the surfaces of the rod portions 3b and 3c hit the net 5 and completely lose their power or are extremely weakened, so that the riser pipes 6 and 7 are supplied from the rod portions 3b and 3c. The amount of droplets bounced back to the side is greatly reduced, and the momentum of the droplets is significantly reduced.

When a pointed blade 10 is provided in place of the net 5, the water discharged from the riser tubes 6, 7 sprayed from the front toward the rod portions 3b, 3c is divided into two at the tip of the blade 10. The rods 3b and 3c are then deflected as they are, and the amount of splashes repelled to the riser tubes 6 and 7 is also greatly reduced in this case.

Therefore, the rod portions 3b,
The riser tube 6
The water discharge pattern of 7 is disrupted and its direction is disturbed,
The problem that the momentum of water discharge is weakened is solved, and the shower effect of the work 4 is significantly increased. In addition, the pretreatment liquid or the electrodeposition coating liquid adhered to the surface of the side rod portion 3b scatters upward and contaminates the ceiling surface 11 of the shower zone or the like. There is no danger that the electrodeposition coating liquid grows into large droplets and drops onto the work 4. In the present invention, the shape of the entire frame 3 is not limited, and the present invention can be applied not only to a C-shaped frame but also to a gate-shaped or L-shaped frame.

[0015]

As described above, according to the present invention, even if the water discharged from the shower is sprayed at a high pressure on the work mounted on the frame of the conveyor hanger and transferred through the shower zone, the water discharged from the hanger can be obtained. The amount of splashes that crush and scatter so as to hit the frame of the shower and bounce back to the shower side is small, and the strength of the splash is weak, so the shower's water discharge pattern is broken by the splash, and the direction of water discharge is scattered or disturbed There is no fear that the momentum will be weakened. Therefore, there is an excellent effect that the shower effect of the work is significantly increased as compared with the related art. In addition, there is a possibility that the splash may scatter on the ceiling surface of the shower zone or the upper part of the hanger and contaminate those surfaces, or that the droplets grow into large droplets and drop onto the work to contaminate the surface of the work. There is an excellent effect that there is no fear.

[Brief description of the drawings]

FIG. 1 is a front view showing the overall configuration of a conveyor hanger according to the present invention and the state of use thereof.

FIG. 2 is a perspective view showing an example of a net stretched over a frame of a conveyor hanger.

FIG. 3 is a perspective view showing an example of a blade provided in place of a net.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Conveyor hanger 2 ... Conveyor rail 3 ... Frame 3a ... Upper rod part 3b ... Side rod part 3c ... Bottom rod part 4 ... Work 5 ... Net 10 ···blade

────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-2-216377 (JP, A) JP-A-5-278652 (JP, A) JP-A-3-106475 (JP, A) JP-A-4- 225874 (JP, A) Japanese Utility Model Showa 61-190762 (JP, U) Japanese Utility Model Showa 63-58063 (JP, U) Japanese Utility Model Showa 60-145980 (JP, U) Japanese Utility Model Utility Model 58-44044 (JP, Y2) 57-40146 (JP, Y2) (58) Fields investigated (Int. Cl. ⁶ , DB name) B62D 65/00 B05B 13/02 B08B 3/02 B65G 17/20 B65G 49/00

Claims (2)

(57) [Claims] 1. A conveyor hanger for transferring a workpiece (4) mounted on a frame (3) suspended on a conveyor rail (2), wherein the frame (3) hits with water discharged from a shower when passing through a shower zone. ) Rod part (3b,
A conveyor hanger comprising a net (5) extending along the surface of 3c) so as to cover the surface so as to finely pass water discharged from the shower. 2. A conveyor hanger for transferring a workpiece (4) mounted on a frame (3) suspended on a conveyor rail (2), wherein the shower (3) hits water discharged from a shower when passing through a shower zone. ) Rod part (3b,
A conveyer hanger comprising a pointed blade (10) for diverting shower water discharge backward so as to cover the surface along the surface of 3c).