JPS6118609A - Hoisting accessory of trolley conveyer - Google Patents

Abstract

PURPOSE:To easily receive a workpiece by providing a hoisting accessory comprising a pair of hoisting members positioned before and behind in the advancing direction of a workpiece, and supporting the workpiece at two points on diagonal lines. CONSTITUTION:A trolley conveyer includes a conveying mechanism 110 moved through a driving chain 104 by rotatably engaging a pair of rollers 111 with a trolley formed by I-steel, wherein a hoisting accessory 400 is suspended and supported by engaging a bent plate 405 with a pin 113b of an engaging member 113. The hoisting accessory 400 comprises a horizontally extended lateral plate 402 fixed to the lower end of a vertical plate 401 having the above bent plate 405 at the upper end thereof, and a pair of hoisting members 403, 404 fixed to both ends of the lateral plate 402. In this case, the forward support portion 403a of the hoisting member 403 is disposed on the front right side of the hoisting means 400 in the advancing direction, and the forward support portion 404a of the hoisting member 404 is disposed on the rear left side thereof, so that a work W can be supported on diagonal lines.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hanging device used in a conveyor device for transporting a vehicle radiator from an inspection process to a painting process, for example.

Conventional technology Conventionally, a conveyor device installed in a production line for vehicle radiators has a first conveyor for the painting process and a second conveyor for the inspection process, which are separate systems. It is necessary to deliver a radiator that is The first conveyor is usually a trolley conveyor, and the hanging device that is transferred to this trolley conveyor to suspend and support the radiator is a primary hanger and a secondary hanger that can be connected to each other in order to receive the radiator carried from the second conveyor. It consists of hanga. - The secondary hanger is directly supported by the trolley conveyor, while the secondary hanger is molded to the shape of the radiator in order to suspend it.

Problems to be Solved by the Invention Conventionally, the above-mentioned secondary hanger is formed by bending a round bar and is hooked into a hole in a workpiece. However, if you try to automate a conveyor device using such a secondary hanger as it is, it may become impossible to receive the work from the second conveyor due to the shape of the secondary hanger. However, it is difficult to automate this process.The purpose of the present invention is to solve this problem.

Means for Solving the Problems A hanging tool according to the present invention includes an engaging part that engages with a conveyance mechanism of a trolley conveyor, and a pair of hanging members that suspend and support a workpiece, one of the hanging members being able to hang the workpiece. The part supported by one hanging member is located at the front in the traveling direction of the workpiece and is offset to the left and right from the center line of the workpiece, and the other hanging member supports the part located at the rear in the traveling direction of the workpiece. It is characterized by supporting opposite sides in the left and right direction.

Example The present invention will be explained below with reference to illustrated embodiments.

In FIG. 2, the first conveyor 100 is a trolley conveyor that extends endlessly through a coating process (not shown).
The second conveyor 200 extends toward the first conveyor 100 from an investigation process such as a helium leak test. The sub-conveyor 300 is provided between the first conveyor 100 and the second conveyor 200, and is connected to the upstream portion 10 of the first conveyor 100.
1 to the downstream portion 102 . work (
The hanging device 400 for suspending and supporting the radiator) W is transferred to the sub-conveyor 300 from the upstream side of the first conveyor 100, and the second conveyor 2
The work W is received from 00 and conveyed again by the sub-conveyor 300, transferred to the downstream side of the first conveyor 100, and transferred to the painting process.

The trolley 103 of the first conhair 100 is made of I-beam steel,
The work W is transferred from the second conveyor 200 to the sub conveyor 300.
It is molded by bypassing the place where it is delivered to. A transport mechanism 110 that transports the hanging tool 400 is driven via a chain 104 provided along a trolley 103. Conveyance mechanism 11
The zero roller 111 is pivotally supported by a connecting member 112 connected to the chain 104 and is constantly engaged with the lower flange of the trolley 103. Below the connecting member 112, a hanging tool 40 is provided.
A locking member 113 for supporting 0 is formed. This locking member 113 has a pair of legs 113a extending downward,
Pins 113b protrude inwardly from these leg portions 1'13a.
and has. The pin 113b is attached to the hanging tool 40 as described later.
Pull up 0.

Upstream part 101 and downstream part 102 of trolley 103
are provided with transfer mechanisms 120 and 140, respectively.

Since these transfer mechanisms 120 and 140 have the same configuration, the transfer mechanism 120 provided in the upstream portion 101 will be described. A plate 121 fixed to the top surface of the trolley 103 has a cylinder device 122 and a guide tube 123.
, 124 are mounted parallel to each other. Cylinder device 1
22 has a piston rod 125 protruding upward;
．． A coupling plate 126 is fixed to the tip of the piston rod 125. The rods 127 and 128 fixed to the lower surface of both ends of the joint plate 126 of the car are connected to the guide tubes 123 and 12.
4, the lower part of which is supported by a guide tube 123,
Receptacle members 129 and 130 are provided at the lower end of the holder 124, respectively, and protrude downward from the holder 124. The receiver is member 129, 1
30 is a lifting rod 40 of a hanging device 400 as described later.
7. In addition, each part of the transfer mechanism 140 provided in the downstream part 102 is shown by adding 20 to the reference numeral of each corresponding part of the transfer mechanism 120 in the upstream part 101.

As shown in FIG. 1, the hanger 400 is formed by integrally connecting several members. A horizontal plate 402 extending horizontally is fixed to the lower end of a vertical plate 401 extending in the vertical direction, and a pair of hanging members 403 are attached to both ends of the horizontal plate 402.
, 404 are attached. These hanging members 403,
Reference numeral 404 supports the work W from below, and the tip support portion 403a of one hanging member 403 is located on the front right side in the direction of movement of the hanging tool 400, and the tip supporting portion 404a of the other hanging member 404 is located on the right side of the front in the traveling direction of the hanging tool 400. Located at the rear left in the direction of travel. That is, the hanger 400 supports the workpiece W diagonally.

A pin 113b of the moving mechanism 110 is attached to the upper end of the vertical plate 401.
A bendable plate 405 that can be locked is attached. bending plate 40
The height 5 is smaller than the length from the base of the leg 113a of the locking member 113 to the pin 113b. Also, the vertical plate 401
A mounting member 406 extending along the longitudinal direction of the trolley 103 is attached to approximately the center of the trolley 103, and a lifting rod 407 extending perpendicularly thereto is fixed just above the mounting member 406. The mounting member 406 is a part that is mounted on the sub-conhair 300, and stoppers 408 are provided at both ends to prevent the workpiece from interfering with the neighboring workpiece during painting.
is formed.

When the transport mechanism 110 reaches the transfer mechanism 120 in the upstream section 101 of the trolley 103, the cylinder device 122 is activated and the rods 127 and 128 are raised. 407 to release the bending plate 405 from the bottle 113b. The height position of the bending plate 405 at this time is such that its lower end is above the pin 113b.

The chain 104 continues to move, and as a result, the transport mechanism 110 moves forward by passing the pin 113b under the bending plate 405. Thereafter, the cylinder assembly W122 moves the piston rod 125 backward. Then the rod 127°128
descends and places the mounting member 406 of the hanging tool 400 on the sub-conveyor 300.

On the other hand, in the downstream portion 102 of the trolley 103, when the hanger 400 that supports the workpiece W is transferred to the sub-conveyor 300 and reaches directly below the conversion mechanism 140, the receiving member 149° that was previously at the lowest position 150 rises through the cylinder device 142 and engages the lifting rod 407 of the sling 400. The receiver members 149 and 150 further rise to move the bending plate 405 of the hanger 400 to the transport mechanism 11.
0 bottle 113b. When the conveyance mechanism 110 reaches the transfer mechanism 140, the cylinder device 142 moves the member 1 through the piston rod 145.
49, lower 150. As a result, the bending plate 405 engages with the pin 113b, and the lifting rod 407
9, freed from 150. Therefore, the sling 40
0 is transferred to the transport mechanism 110 again and is transported to the next painting process.

The second conveyor 200 carries workpieces W from a previous process such as an inspection process.
It is a chain conveyor. The size of the work W may vary, and in order to cope with this, a centering mechanism 210 is provided at the end of the chain conveyor 201 to align the center position. A pair of seven arms 211 and 212 sandwiching both ends of the workpiece W are driven by a cylinder device 213. These arms 2
11, 212 and the cylinder device 213 are attached to the support plate 214, which is attached to the bin 21 provided on a fixed frame (not shown).
5, and is swingably driven via a cylinder device 216. The pair of arms 21'l and 212 are supported by a rod 217 that is attached to a support plate 214 and extends along the chain conveyor 201 so as to be expandable and contractible.
18, it is always urged in the direction of expansion. chain 2
19 is the arm 211, 212 and the cylinder assembly 'It 2
13 piston rods 220, and the support plate 214
It engages with a roller 221 that is pivotally supported. Therefore, when the piston rod 220 retreats, the pair of arms 211
, 212 are pulled by the chain 219 against the spring 218 to narrow the space between them. On the other hand, when the piston rod 220 protrudes, it is pressed by the arms 211, 212 and springs 218 and expands outward. Note that the support plate 214 as a whole can be rotationally displaced by the cylinder device 2]6 and released from the workpiece W.

A transfer mechanism 230 is provided below the centering mechanism 210. A pair of pinching members 231 sandwich the workpiece W from both sides, and the guide rod 23 fixed to the moving plate 232
It is supported so that it can be expanded and contracted along 3. Because of this expansion/contraction movement,
A cylinder device 234 is provided above the moving plate 232. The moving plate 232 is supported by a guide rod 236 attached to a fixed member 235 and extending along the chain conveyor 201, and is reciprocated by a cylinder device 237.

When the workpiece W is positioned by the centering mechanism 210, the sandwiching member 231 pinches the workpiece W via the cylinder device 234. Then, the centering mechanism 210 spreads the arms 211 and 212, moves the arms 211 and 212 upward via the cylinder device 216, and releases the workpiece W. Next, the transfer mechanism 230 moves the cylinder device 23
7 to move the moving plate 232 forward, thereby moving the work W
is transferred to the holding mechanism 240.

The holding mechanism 240 temporarily holds the workpiece W in order to transfer it to the sub-conveyor 300. A frame member 242 having a roller 241 that supports the work W is connected to a fixed frame (not shown). A moving frame 245 attached to the piston rod 244 of the cylinder device 243 can be placed on the front side of the frame member 242. That is, the movable frame 245 is reciprocally movable via the cylinder device 243, faces the frame member 242 when in the forward position, and escapes to the side of the frame member 242 when in the retreat position. This moving frame 2
Similarly to the frame member 242, a roller 241 is pivotally supported on the front surface of the frame member 245, and the workpiece W can be held by the frame member 242 and the movable frame 245. In addition, frame member 2
A slit 246 is formed in 42 to avoid interference with the hanging member 404 of the hanging tool 400.

The surf conveyor 300 is a first chain conveyor 301
A second chain conveyor 302 and a delivery mechanism 310 are provided. First and second chain conveyors 301, 3
02 is provided in parallel to the upstream portion 101 and the downstream portion 102 of the first conveyor 100, and the delivery mechanism 310 is disposed therebetween.

A support plate 311 of the delivery mechanism 310 is fixed to a fixed frame (not shown), and a cylinder device 3 is mounted on the lower surface of this support plate 311.
12 and guide tubes 313 and 314 are attached.

An elevating plate 315 is fixed to the lower end of the piston rod 318 of the cylinder device 312, and rods 316 and 317 erected on the upper surface of the elevating plate 315 are connected to guide tubes 313 and 3.
14 and is fitted and supported. A rod 319 rotatably attached to the elevating plate 315 projects below the elevating plate 315, and a first joint 320 is provided on the protruding portion.

A second joint 322 is provided at the upper part of a connecting plate 321 provided below the elevating plate 315, and the second joint 322 is connected to the first joint 320 via an intermediate joint 323. The intermediate joint 323 connects to the chain conveyor 3 via the pin 324.
01, 302 is displaceable in the longitudinal direction, and the second joint 322 is connected to the chain conveyor 301 via the bin 325.
, 302 are laterally displaceable. On the other hand, the connecting plate 32
The lower end of the rod 326 fixed below the transfer plate 3
27 is attached. The delivery plate 327 has a horizontal portion 327a.
and a support portion 327b perpendicular to the horizontal portion 327a, and two recesses 328 are formed on the upper surface of the horizontal portion 327a. A pair of knock pins 329 supported by a fixed frame so as to be movable up and down can be engaged with these recesses 328, respectively, and the knock pins 329 are raised and lowered by a cylinder device 330.

From this delivery plate 327 to the rod 319, the rod 31
It is rotatable around the axis of 9. This rotational movement is performed by a cylinder device 331 provided on the elevating plate 315. That is, the arm 233 fixed to the upper end of the rod 319 is biased by the spring 333 so that the cylinder device 3 is always
When the piston rod 334 protrudes, the rod 319 rotates counterclockwise when viewed from above, and when the piston rod 334 retreats, the rod 319 is pressed by the spring 333 and rotates from above. Look at it and rotate it clockwise.

On the sides between the first and second chain conveyors 301 and 302, these chain conveyors 301 and 302 are installed.
A gripping mechanism 340 is disposed along. Grasping mechanism 340
The rod 341 is reciprocatably supported by a cylinder device 342, and is connected to a first gripping member 343 and a second gripping member 34.
It has 4. The first gripping member 343 is bifurcated at the tip, and the vertical plate 401 of the hanging tool 400 is sandwiched between the two.
1 to the support section 327b of the delivery mechanism 310. The second gripping member 344 also has a bifurcated tip, so that the hanging tool 400 can be transferred from the support section 327b of the delivery mechanism 310 to the second chain conveyor 302.

Due to this operation, the rod 341 can be rotated around the axis in addition to being reciprocated by the cylinder device 342. In the cylinder device 345 that causes this rotational displacement, the piston rod is a rack 346, and this rank 34
6 is a pinion 3 pivotally connected to the support member 347 of the fixed frame.
It meshes with 4B. The pinion 348 has a rod 341 in its hole.
A spline 349 formed at the base of the
The spline 349 can be displaced relative to the pinion 348 in the axial direction, but is integrally displaced in the rotational direction. Note that a stopper 351 driven by a cylinder device 350 is provided downstream of the first chain conveyor 301.

The delivery mechanism 310 and the gripping mechanism 340 operate as follows to deliver the hanging tool 400.

Hanging tool 400 transported by first chain 301
is stopped by the stopper 351, and the first gripping member 343, which was facing downward, is moved downward by approximately 90 degrees by the action of the cylinder device 345 and becomes a horizontal position, thereby pinching the vertical plate 401 of the hanging tool 400. . After that, the stopper 351
When the user releases the hanger 400, the rod 341 moves toward the second chain-con hair 302, and thereby the first gripping member 343 moves the hanger 400 to the support portion 327b of the delivery mechanism 310. After the first gripping member 343 rotates downward and releases the vertical plate 401 of the hanging tool 400, the delivery plate 3
27 is lowered by the action of the cylinder device 312. At this time, the cylinder equipment W331 operates and the piston rod 3
34 to protrude and rotate the delivery plate 327. As a result, the pair of hanging members 403 and 404 of the hanging tool 400 are
As shown in FIG. 4(a), the opening is widened and the workpiece W can be easily received.

The workpiece W transferred by the transfer mechanism 230 is transferred to the holding mechanism 240 without interfering with the hanging members 403 and 404.
is placed on the roller 241 (FIG. 4(a)).

Next, the transfer plate 327 is rotated in the opposite direction to that described above by the action of the cylinder device 331, and the hanging members 403 and 404 are rotated.
is secured to the lower surface of the upper step of the workpiece W (Fig. 4(b))
). That is, the separate members 403 and 404 support two points symmetrical about the center point C of the workpiece W. At this time, due to the action of the spring 333, the hanging members 403 and 404 are biased more clockwise than the state shown in FIG.
Even if it is bent so as to spread outward, it is designed to reliably engage the workpiece W.

Next, the moving frame 245 is moved backward by the cylinder device 243, and the workpiece W can be moved toward the second chain converter 302. The transfer plate 327 rises by 1" via the cylinder device 312, and stops once the support portion 327b reaches the same height position as the second chain converter 302. In this state, as described above, due to the action of the spring 333, the delivery plate 327 is rotated slightly clockwise when viewed from above, and the support portion 327b is rotated slightly clockwise due to the action of the spring 333.
It is not on the same straight line as 02. So next, dowel pin 32
9 is lowered by the cylinder device 330 and engaged with the recess 32B. As a result, the support portion 327b comes to be on the same straight line as the second chain connecting hair 302.

Then, the second gripping member 344 rotates from below to become horizontal, and grips the vertical plate 401 of the hanging tool 400. Next, by the action of the cylinder device 342, the gripping member 344 is attached to the hanging tool 400.
is transferred from the transfer plate 327 to the second chain converter 302. The second chain converter 302 supports the mounting member 406 of the hanging tool 400 and transfers this lifting tool 400 to the transfer mechanism 140.
Transfer it directly below. Then, the hanging tool 400 is transferred again to the first conveyor 100 as described above, and the workpiece W is transported to the next step.

Effects of the Invention As described above, in the present invention, since the hanging member is configured to support the workpiece at two diagonal points, the hanging tool can be rotated around the vertical axis even if the hanging member is bent. This allows the workpiece to be accepted easily. Therefore, it becomes possible to automate the transfer of workpieces between a plurality of conveyors.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a perspective view showing an automated hair-conhairing device applying an embodiment of the present invention, and Fig. 3 is a perspective view showing a lifting device of an embodiment. A side view showing the state in which the work is transported by the mechanism, FIG. 4 (al is a plan view showing the state before the work is engaged with the hanging tool,
FIG. 3 is a plan view showing the state after the workpiece is engaged with the hanging tool. 400...Hanging tool, 403, 404...Hanging member, 405...Bending plate (engaging portion).

Claims (1)

[Claims] 1.Equipped with an engaging part that engages with the transport mechanism of the trolley conveyor, and a pair of hanging members that suspend and support the workpiece, one of the hanging members being located in front of the workpiece in the traveling direction and from the center line of the workpiece. also supports a portion that is biased in the left-right direction, and the other hanging member supports a portion that is rearward in the traveling direction of the workpiece and is opposite to the portion supported by the one hanging member in the left-right direction. Hanging equipment for trolley conveyor.