KR101214927B1 - Roller conveyer system - Google Patents

Abstract

PURPOSE: A roller conveyor system is provided to enable gap adjustment to thermally treat multiple objects in an oven. CONSTITUTION: A roller conveyor system comprises a first roller conveyor(100) and a second roller conveyor(200). The first roller conveyor is used to a coating or a plating process. The second roller conveyor passes an oven. The first and second roller conveyors are arranged into the shape of a rectangular to circulate a palette on a roller. A driving roller, a driving unit, and a direction conversion part are arranged at each corner of the first and second roller conveyors. The direction conversion part rotates the driving roller in a horizontal direction to convert a moving direction of the palette placed on the driving roller. A direction conversion part after the coating or the plating process in the first roller conveyor is arranged near a direction conversion part before thermal treatment in the second roller conveyor so that the objects placed on the palette on the direction conversion part of the first roller conveyor to the palette on the direction conversion part of the second roller conveyor. The second roller conveyor is divided before the oven to pass through the over in multiple rows.

Description

Roller Conveyer System

The present invention relates to a roller conveyor system, which is used in a process of heat-treating a painted or plated object, to maintain productivity even in the difference between the heat treatment time and the coating or plating time, and to increase the energy efficiency of the oven used for heat treatment. To a roller conveyor system.

Wheel dry plating process for automobiles is disclosed in Korean Patent No. 10-0789766. The wheel dry plating process for automobiles is carried out in the order of undercoat, intermediate coating, deposition coating, sputtering dry plating, and topcoat after pretreatment of the vehicle, and after heat coating, intermediate coating, and sputtering dry plating, heat treatment is performed at a constant temperature. The heat treatment step is performed.

1 schematically shows an apparatus for performing this process. As shown in FIG. 1, in the case of the conventional apparatus, the support 5 is formed at a predetermined interval L1 on the chain conveyor 1, and the wheels for automobiles are mounted on the support so that the coating process 20 and the heat treatment oven are performed. Pass (10).

In the case of the painting process 20, the clearance L1 with the neighboring wheel for a vehicle is calculated | required for the reason of painting or plating in the lower part. However, in the case of heat treatment, it should be kept constant for a predetermined time at an appropriate temperature. In the conventional apparatus, since the wheels for automobiles, which have been painted or plated, are introduced into the oven 10 at the interval, they can be put in an oven. The number of wheels was limited.

In addition, since the time to be painted or plated in the coating or plating process is relatively less than the time of heat treatment in the oven, the coating or plating process was performed in accordance with the heat treatment time, which does not utilize the productivity of painting or plating have.

The present invention is to solve the above-mentioned conventional problems, an object of the present invention is to provide a roller conveyor system capable of adjusting the interval to heat treatment a plurality of objects in the oven.

An object of the present invention is to increase productivity by increasing energy utilization and space utilization in an oven in a process in which an oven is performed subsequent to a plating or painting process, in which a large amount of heat treatment is performed in the same space.

In addition, the present invention comprises a plating or painting process that is faster than the heat treatment process is composed of a different line from the heat treatment process, by providing a heat treatment process including a plurality of oven passing line to maximize the production rate according to each process to maximize the production For the purpose of

In order to achieve the above object, the present invention provides a roller conveyor system as follows.

The present invention is a roller conveyor system used for dry plating in which a heat treatment process is performed after a painting or plating process, the first roller conveyor apparatus used in the painting or plating process; And a second roller conveyor device passing through the oven, wherein the first and second roller conveyors are disposed in a rectangular shape so that the pallets on the rollers are circulated, and drive rollers at each corner; A direction changing unit including driving means for rotating the drive roller and direction changing means for rotating the drive roller in a horizontal direction so as to change a moving direction of the pallet placed on the drive roller, and painting of the first roller conveyor Or an object placed adjacent to the turning part after the plating process and the turning part before the heat treatment of the second roller conveyor and placed on the pallet of the turning part of the first roller conveyor to a pallet to the turning part of the second roller conveyor. Provide a roller conveyor system configured to be moved.

In the present invention, the pallet spacing of the first roller conveyor is preferably larger than the second roller conveyor pallet spacing.

In the present invention, the second roller conveyor may be branched before the oven to pass through the oven in a plurality of rows.

In addition, the pallet of the present invention is a main body portion that is moved on the roller in a square shape; A support for supporting an object; And a stop in which a portion of the main body is cut, wherein at least one of the first and second roller conveyors has a stop cylinder between the roller and the roller, and the stop cylinder is inserted into the stop of the pallet so that the pallet Movement on the roller conveyor can be suppressed.

The first and second roller conveyors may include guide means for guiding the movement of the pallet, and the guide means may be disposed at both sides along the moving direction of the pallet to limit movement outside the moving direction of the pallet. .

In the present invention, the stop cylinder is disposed at the outlet of the oven, the pallet introduced into the oven may be configured to abut each other along the moving direction in the oven.

In the present invention, the guide means may comprise a 'b' shape including a width direction guide portion for guiding the width direction movement, and an upper guide portion for covering the upper part of the pallet to prevent the rise of the pallet.

The present invention may further include a robot arm for moving an object from the first roller conveyor to the second roller conveyor.

The present invention can provide a roller conveyor system capable of adjusting the interval to heat treatment a plurality of objects in the oven through the above configuration.

According to the present invention, in a process in which an oven is performed subsequent to a plating or painting process, a large amount of heat treatment may be performed in the same space, thereby increasing productivity and increasing energy utilization and space utilization in the oven.

In addition, the present invention comprises a plating or painting process that is faster than the heat treatment process is composed of a line different from the heat treatment process, by providing a heat treatment process including a plurality of oven passing line to maximize the production speed for each process to maximize the production Can be.

1 is a schematic view of a conventional plating or painting process and heat treatment process is performed.
Figure 2 is a schematic diagram of the improvement that the conventional plating or painting process and the heat treatment process is performed successively.
3 is a schematic top view of a roller conveyor system of the present invention in which a plating or painting process and a heat treatment process are performed in succession.
FIG. 4 is a side view showing a traveling part and a turning part in the first roller conveyor of the roller conveyor system of the present invention. FIG.
5 is a plan view of a pallet of the roller conveyor system of the present invention.
6 is a perspective view of a pallet of the roller conveyor system of the present invention.
7 is a plan view in a state where the pallet passes through the progression portion in the roller conveyor system of the present invention.
8 is a front view in a state where the pallet passes through the progression portion in the roller conveyor system of the present invention.
9 is a view showing a state in which the pallet is stopped in the roller conveyor system of the present invention.
10 is a schematic top view of the roller conveyor system of the present invention in operation.

2 is a schematic diagram of an improved chain conveyor system in order to solve the conventional problems. As shown in Figure 2, the chain conveyor to the heat treatment chain conveyor 2 and the coating chain conveyor (1) to solve the problems caused by the conventional coating or plating process and the heat treatment process is performed at the same interval (L1) It is divided up. Therefore, the distance L2 between the support 5 of the chain conveyor 2 for heat treatment and the support L 5 of the chain conveyor 1 for painting can be implemented differently.

Since the chain conveyors are not connected when the gaps L1 and L2 are implemented in this way, the robot arm moves the wheel W for automobiles from the coating chain conveyor 1 to the chain conveyor 2 for heat treatment. (30). However, since the chain conveyor 2 for heat treatment enters the oven 10 together with the support 5, the length is increased by the oven 10, whereby the robot arm 30 is one conveyor 1. In the process of moving from the conveyor to another conveyor 2, the timing fluctuates and an accident of falling (C) occurs, and thus there is a limit that a defect occurs.

The present invention solves the conventional problems and at the same time to improve the energy utilization of the oven 260 will be described in detail below with reference to the accompanying drawings.

3 is a plan view schematically illustrating the roller conveyor system of the present invention in which a plating or painting process and a heat treatment process are performed successively, and FIG. 4 shows a traveling part and a turning part in the first roller conveyor of the roller conveyor system of the present invention. One side view is shown.

As shown in FIG. 3, the present invention comprises at least two roller conveyors 100, 200. Each roller conveyor (100, 200) is configured in such a way to move the pallet 400 to the rollers (111, 211; see Figure 4), each pallet 400, such as a car wheel (W) for painting or plating objects Will be placed and moved. The roller conveyors 100 and 200 are disposed in a rectangular shape such that the pallet 400 is circulated in the roller conveyors 100 and 200.

The roller conveyors 100 and 200 include a first roller conveyor 100 passing through the painting or plating process unit 160 and a second roller conveyor 200 passing through the heat treatment oven 260.

Direction turning parts 120 and 220 are disposed at each corner to circulate the pallet 400. The direction changing units 120 and 220 convert the direction in which the pallet 400 moves so that the pallet is circulated. In the present invention, the direction changing part 120 of the lower right end of the first roller conveyor 100 is disposed adjacent to the direction changing part 220 of the lower left end of the second roller conveyor 200, and the direction changing part 120 is provided. , The robot arm 300 is disposed between the second roller conveyors for heat treatment of the wheels for automobiles W, from which the painting or plating process is completed, from the direction change unit 120 of the first roller conveyor 100. The direction change unit 220 of the 200 is moved.

At this time, even if the roller conveyor (100, 200) is located inside the oven 260, the interval does not change due to thermal expansion, unlike the improved technique of Figure 2 may not cause a timing problem.

In addition, the second roller conveyor 200 of the present invention moves the pallet 400, on which the wheels for automobiles W are placed, to the branch 230, the branch 230. Is configured to distribute the pallet 400 to the first heat treatment line 201 and the second heat treatment line 202 so that the pallet 400 may be supplied in a plurality of rows to the oven 260. The pallet 400, which has passed through the oven 260 along the first or second heat treatment lines 201 and 202 at the branch 230, is joined in one row at the confluence unit 240 again to move the process unit 210. Are conveyed accordingly. After the heat treatment, the vehicle wheel W is moved to the next step in the direction change unit 220 between the progressing units 210.

On the other hand, in the first roller conveyor on the painted or plated side, the wheel W for automobiles, which has been pretreated, is provided to the direction change part 120 at the lower left. At this time, the supply position may be used other direction change unit 120 except for the direction change unit 120 of the lower right. The pallet 400 on which the vehicle wheel W is placed in the turning unit 120 is moved along the painting or plating line 101 so as to pass through the painting or plating process unit 160, and the painting or plating line 101. Painted or plated at

Referring to Figure 4, it will be described with respect to the progress unit (110, 210) and the direction switching unit (120, 220).

In the present invention, the moving parts 110 and 210 have the same configuration as the coating or plating line 101 or the first and second heat treatment lines. The progressing unit 110 supports the roller 400 while supporting the roller 400, a roller support 113 for supporting the rotating shaft 112 of the roller 111, and a plurality of roller supports 113. It includes a support portion 114 is connected, the support portion 114 is equipped with a drive means 118 for providing a rotational force to the roller 111. The support 114 is fixed to the floor by the pedestal 115.

The rollers 111 may be individually connected to the driving means 118, but the chain 117 may be connected to drive the plurality of rollers 111 simultaneously.

On the other hand, the support portion 114 may be provided with a stop cylinder 500, the stop cylinder 500 is present in the lower portion between the roller 111 and the roller 111, the stop cylinder 500 is raised to pallet 400 can be immobilized. That is, even if the roller 111 is driven by the driving means 118, the pallet 400 may stop in place without moving in the direction of travel by the stop cylinder 500.

Similar to the traveling parts 110 and 210, the direction change parts 120 and 220 of the present invention support the roller 121, the roller support part 123 supporting the rotation shaft 122 of the roller 121, and the plurality of roller support parts. 123 is connected to the support portion 124, the support portion 124 is provided with a driving means 128 may drive the roller 121.

On the other hand, the support portion 124 in the redirection portions 120 and 220 is connected to the redirection means 125, the redirection means 125 together with the support portion 124 including the roller 121 in the horizontal direction By rotating, the direction in which the pallet 400 placed on the roller 121 travels is changed. The turning means 125 may be implemented as a motor. On the other hand, the direction switching means 125 is fixed to the floor by the pedestal 126.

The branch portion 230 and the confluence portion 240 have a configuration in which the support portion 124 including the roller 121 is rotated together in the horizontal direction, and thus has the same configuration as the direction change portions 120 and 220.

5 and 6 show top and perspective views of the pallet 400 used in the present invention. The pallet 400 of the present invention includes a base part 410 including a base plate 411 and a stop part 412 whose edge is cut off from the base plate 411 and a support part for supporting an object, here, a wheel W for an automobile. 420. The support part 420 is composed of a support bar 422 connected to the center of the main body 410 so as to be painted or plated on the lower surface, and a pedestal 421 connected to an end of the support bar 422 and supporting an object.

In the main body 410, the base plate 411 is configured in a square shape, and the stop part 412 is a space part cut in a rectangular shape in a square shape. The stop 412 may be implemented in other shapes, but preferably has a surface perpendicular to the direction of travel.

7 is a plan view of a pallet passing through the progression portion of the roller conveyor system of the present invention.

As shown in FIG. 7, the square pallet 400 having a size corresponding to the width of the roller 111 is moved by the roller 111. The guide 150 guides both sides of the pallet 400 so that the pallet 400 to be moved can only be moved in the moving direction. The guide 150 is configured to cover a portion of the upper surface of the pallet 400 to not only prevent the movement in the lateral direction but also guide the movement in the vertical direction.

8 is a front view in a state where the pallet passes through the progression portion in the roller conveyor system of the present invention so as to specifically check the appearance of the guide 150 and the stop cylinder 500.

As shown in FIG. 8, the stop cylinder 500 is disposed below the roller 111 and includes a cylinder body 510 and a cylinder arm 520. The cylinder arm 520 is ascendable to the upper portion of the roller 111, the stop cylinder 500 is located at a position corresponding to the stop 412 of the pallet 400 in the width direction to the cylinder of the stop cylinder 500 Arm 520 may be hung on stop 412. When the stopper 412 is caught by the cylinder arm 520, even if the roller 111 is rotated, the pallet 400 is not moved in the moving direction, and thus it is possible to keep the position.

On the other hand, the guide 150 is disposed on both sides of the roller 111. The guide 150 includes a width guide part 152 for guiding the width movement of the pallet 400 and an upper guide part 151 for covering the upper part of the pallet 400 to guide the vertical motion of the pallet 400. The width direction guide part 152 and the upper guide part 151 are orthogonally connected, and are comprised in a "-" shape as a whole.

In FIG. 9, when the pallets 400 are connected to each other according to the operation of the stop cylinder 500, an operation of moving the pallets 400 by one is illustrated in order. As shown in FIGS. 5 and 6 of the present invention, the pallet 400 includes a stop 412 in the form of a corner. When the cylinder arm 520 of the stop cylinder 500 is raised to the stop of the pallet 400, the pallet 400 cannot move and stops in place.

When the pallet 400 is not moved in this way and stops in place, the subsequent pallet may not be moved because the preceding pallet 400 does not move, so that the pallet 400 comes into contact with the preceding pallet 400 and stops. When the cylinder arm 520 of the stop cylinder 500 is lowered when the plurality of pallets 400 are stopped in a row, the plurality of pallets 400 are successively rolled out, which is a pallet 400 which has a time interval. Since it may result in the outgoing at once, it is necessary to move by a single pallet 400, in which case the easy control of the stop cylinder 500 may not cause problems in the long term.

As shown in FIG. 9 (a), the cylinder arm 520 is lowered in the stopped state, and the cylinder arm 520 is moved at the point where the stop 412 forward of the movement direction passes through the stop cylinder 500 after the lowering. Will rise again. When the cylinder arm 520 is raised in this way, the cylinder arm 520 abuts against the bottom surface of the base plate 411, and thus cannot be raised. At this time, since the pallet 400 is guided upward by the guide means 150, in particular, the upper guide part 151, the pallet 400 can move in the moving direction even if the cylinder arm 520 exerts upward force.

On the other hand, the cylinder arm 520 is raised again when it encounters the stop portion 412 of the rear in the advancing direction, and enters the stop portion 412 of the subsequent pallet 400 in this raised state to move the subsequent pallet 400. Can be stopped stably. This operation can not only reliably operate the stop cylinder 500, but also facilitate control.

FIG. 10 is a view illustrating a vehicle wheel W being coated / heated or plated / heated in a state in which the pallet 400 is placed on the first roller conveyor 100 and the second roller conveyor 200 of the present invention. .

As can be seen in Figure 10, the support portion 420 of the pallet 400 in the first roller conveyor 100 is circulated and painted or plated at a predetermined distance (L1) and the neighboring pallet 400 to enable painting or plating The process is carried out. The wheel W for the vehicle, which has passed through the painting or plating line 101, is moved to the second roller conveyor 200 through the robot arm 300.

The pallet 400 on which the wheels for automobiles W are seated on the second roller conveyor 200 is supplied to the branch 230, and is branched to the plurality of heat treatment lines 201 and 202 at the branch 230. Branched heat treatment lines 201 and 202 pass through oven 260. Before the outlet of the oven 260, a stop cylinder 500 is disposed, and stops the pallet 400 in the oven 260 to be heat-treated for a predetermined time in the oven 260.

Since the pallet 400 is stopped adjacent to the outlet of the oven 260 in this way, the trailing pallet 400 is brought into contact with the stopped preceding pallet 400 to be stopped. Thus, when the preceding pallet 400 and the trailing pallet 400 abut, the distance L2 between the support part 420 of the pallet 400 becomes the support part 420 of the pallet 400 in the 1st roller conveyor 100. It may be less than the interval (L1) between.

As the spacing between the supports 420 of the pallet 400 decreases, the number of pallets 400 that can be accommodated inside the oven 260 can be increased, and the pallets can be supplied to the oven 260 in a plurality of rows. As such, the number can be further increased.

In particular, in the case of heat treatment, a lot of time is consumed compared to the painting or plating process, and an object that is painted or plated at a rapid time in many paintings or platings, in this case, an automobile wheel (W) can be heat treated all at once, thus unnecessary waiting time. Can be reduced, and the overall productivity can be improved.

In addition, in the oven 260, the time of the oven 260 operated on one product can be reduced, and as a result, the energy efficiency of the oven 260 can be increased.

In the present invention, the first roller conveyor 100 and the second roller conveyor 200 are to pass the wheel (W) for the vehicle to the robot arm 300 in the direction changing unit (120, 220), as described above Since the switching parts 120 and 220 rotate the integrated body including the roller 121, the pallet 400 stays in the direction changing parts 120 and 220 when the direction is changed. therefore. The timing of the robot arm 300 can be easily set, and thus problems such as falling during the movement can be solved.

In addition, in the present invention, like each of the first roller conveyor 100 and the second roller conveyor 200, since each process is implemented by each roller conveyor 100, 200, it is possible to modularize the process. That is, not only the plating process or the heat treatment process can be driven separately, but also the necessary processes can be expanded without expanding the entire process in the facility expansion.

In the above-described embodiment of the present invention, the object to be painted or plated in the present invention has been described as a wheel W for an automobile, but the coating or plating is possible, and other objects may be used if heat treatment is required.

In addition, in the present invention, a square pallet is used, but includes a stop, and when the stop is stopped in the advancing direction by the stop, subsequent pallets may stop in succession. Of course, it can be used.

100: first roller conveyor, 101: painting or plating line
110: traveling part 111, 121: roller
112, 122: rotation shaft 113, 123: roller support
114, 124: Support 115: Pedestal
118: drive means 120: direction switching unit
125: direction switching means 126 support
160: painting or plating step 200: second roller conveyor
201: first heat treatment line 202: second heat treatment line
210: progression unit 220: direction switching unit
230: branch portion 240: joining portion
260: oven 300: robot arm
400: pallet 410: main body
420: support 500: stationary cylinder
510: cylinder body 520: cylinder arm

Claims (8)

delete delete A roller conveyor system used for dry plating where a heat treatment process is performed after a painting or plating process.
A first roller conveyor used in a painting or plating process; And
A second roller conveyor passing through the oven;
The first and second roller conveyors are arranged in a rectangular shape so that the pallet on the roller is circulated,
Driving edges at each corner of the rectangular first and second roller conveyors; A direction change unit including drive means for rotating the drive roller and direction change means for rotating the drive roller in a horizontal direction so as to change a moving direction of the pallet placed on the drive roller,
The turning part after the painting or plating process of the first roller conveyor is disposed adjacent to the turning part before the heat treatment of the second roller conveyor so that an object placed on the pallet of the turning part of the first roller conveyor is placed in the second roller conveyor. Configured to be transferred to a pallet with the redirection unit,
And the second roller conveyor is branched before the oven and passes through the oven in a plurality of rows.
A roller conveyor system used for dry plating where a heat treatment process is performed after a painting or plating process.
A first roller conveyor used in a painting or plating process; And
A second roller conveyor passing through the oven;
The first and second roller conveyors are arranged in a rectangular shape so that the pallet on the roller is circulated,
Driving edges at each corner of the rectangular first and second roller conveyors; A direction change unit including drive means for rotating the drive roller and direction change means for rotating the drive roller in a horizontal direction so as to change a moving direction of the pallet placed on the drive roller,
The turning part after the painting or plating process of the first roller conveyor is disposed adjacent to the turning part before the heat treatment of the second roller conveyor so that an object placed on the pallet of the turning part of the first roller conveyor is placed in the second roller conveyor. Configured to be transferred to a pallet with the redirection unit,
The pallet may include a main body moving on a roller in a rectangular shape; A support for supporting an object; And a stop portion cut part of the main body portion,
At least one of the first and second roller conveyors has a stop cylinder between the roller and the roller, the stop cylinder is inserted into the stop of the pallet so that the pallet is suppressed movement on the roller conveyor Conveyor system.
The method of claim 4, wherein
The first and second roller conveyors include guide means for guiding the movement of the pallets,
The guide means are arranged on both sides along the moving direction of the pallet to limit movement outside the moving direction of the pallet.
The method of claim 4, wherein
The stop cylinder is disposed at the outlet of the oven, so that the pallets entering the oven abut each other along the direction of movement in the oven.
The method of claim 5, wherein
The guide means includes a roller guide system comprising a width guide portion for guiding the lateral movement and the upper guide portion to cover the upper part of the pallet to prevent the rise of the pallet.
The method according to claim 3 or 4,
And a robotic arm for moving an object from said first roller conveyor to said second roller conveyor.

Images