JPH0444491Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a slat conveyor device used, for example, in an automobile assembly line.

2. Description of the Related Art Conventionally, a slat conveyor device has been provided, for example, as disclosed in Japanese Patent Publication No. 61-60002. That is, in this conventional structure, a large number of slat plates are fixed between a pair of left and right chains in the chain length direction, and receiving posts are attached to the surfaces of predetermined slat plates via bolts. According to this conventional structure, by placing the workpiece (automobile) between the receiving posts, it is possible to transport the workpiece (automobile) along a fixed transport path.

Problems that the invention aims to solve However, according to the above conventional configuration, when trying to transport a different type (vehicle model) of work on the transport route, the current receiving posts cannot provide accurate and stable support. Therefore, it is necessary to replace the receiving post or change the mounting position.
In this case, since there are a large number of receiving posts and a plurality of bolt operations are required for each receiving post, it takes a great deal of time and effort to reset the whole thing. Furthermore, when the slat conveyor device is in continuous operation, the work cannot be stopped for work.

The purpose of this invention is to quickly and easily change the entire structure, including the support, when there is a change in the conveyed object, and to allow the conveyed object to be changed quickly and easily even while the slat conveyor device is in continuous operation. The object of the present invention is to provide a slat conveyor device that can be stopped at one time.

Means for Solving the Problems In order to achieve the above object, the slat conveyor device of the present invention is a slat conveyor device in which a large number of slat plates are attached to a drive chain, and in which a guide member is provided with a long guide member on the surface of the slat plate. installed in the horizontal direction,
A pallet is formed by connecting a plurality of pallet plates so as to be able to freely swing relative to each other, and a jig is provided on the front surface of this pallet, and a guided member guided by the guide member is provided on the back surface, and the slat plates and the pallet are connected to each other. A positioning device is provided that can be positioned by penetrating the slat plate with an engagement pin, and the positioning device releases the penetration of the engagement pin into the slat plate and drives the pallet through the engagement pin. A fast-forwarding device is provided for fast-forwarding the slat plate.

According to the configuration of the present invention, the moving force of the continuously operated slat plate is transmitted to the pallet via the engagement/disengagement pin of the positioning device, and the pallet is moved together. Therefore, the objects to be conveyed supported by the pallet via the jig are conveyed on the conveyance path. When conveying an object of a different shape, the current pallet may be removed, a pallet having a jig suitable for the next object to be conveyed may be installed, and positioning may be performed using a positioning device. In addition, at predetermined locations on the conveyance route,
The positioning device releases the positioning of the engagement pin by penetrating the slat plate, and the fast forwarding device acts on the pallet via the engagement and disengagement pin to move the slat while guiding the guided member to the guide member. Pallets can be moved faster than the transport speed of the conveyor system. This allows distance (time) to be gained and the pallet to be stopped for that amount of time.

Embodiment An embodiment of the present invention will be described below based on the drawings.

The slat conveyor 1 basically includes a pair of left and right guide rails 3 supported by a machine frame 2, a pair of left and right roller chains 5 supported and guided by the guide rails 3 via rollers 4, and these roller chains 5.
It consists of a slat plate 6 attached between opposing chain links, a drive sprocket 7 and a driven sprocket 8 for hanging the roller chain 5, and a drive device 9 for continuously rotating the drive sprocket 7. Concave guide members 10 are provided on both sides of the surface of each slat plate 6, and these guide members 10 are provided continuously along the entire length in the length direction (movement direction). Further, on one side of each slat plate 6, a vertical through hole 51 forming a part of the positioning device 50 is provided. A pallet 11 is formed by connecting a plurality of pallet plates 12 so as to be relatively swingable. That is, the pallet plate 12 is set to have the same dimensions (length and width) as the slat plate 6, and by installing a pair of left and right end chains 13 between the back surfaces thereof, A roller 15, which is an example of a guided member guided by the guide member 10, is attached to the connecting pin 14 so as to be freely rotatable relative to each other. A jig 16 is attached to the surface of a predetermined pallet plate 12 of the pallet 11 at a predetermined location. Further, on one side of the pallet plate 12, a locking pin 52 forming the other part of the positioning device 50 is provided. That is, the engagement pin 52 has a square shaft shape,
It is guided only up and down freely through a square hole 53 formed in the pallet plate 12, and an operating section 52A is connected to the upper end in an outwardly bent manner. The lower end of the engagement pin 52 is freely engageable and detachable from the through hole 51, and its lower end (engagement) is reached when the ring 54 attached to the engagement pin 52 comes into contact with the upper surface of the slat plate 6. regulated and also pallet plate 12 and ring 54
A spring 55 is provided between the two to bias the downward movement. A cylindrical body 56 that guides the ring 54 and covers the spring 55 is provided vertically from the pallet plate 12. A guide roller 18 and a width regulating roller 19 are attached to both sides of the surface of the pallet plate 12 via a bracket 17. Said roller chain 5
A conveyance path 20 is formed along the upper moving part of
Then, the pallet return route 21 is passed along the lower moving section.
is formed. A supply section 23 for a vehicle (an example of a transported object) 22 is formed at the starting end of the transport path 20, and a take-out section 24 is formed at the terminal end. Channel-shaped guide rails 26 are provided on both sides along the pallet return path 21 to support and guide the guide rollers 18 and width regulating rollers 19, and these guide rails 26 are fixed to the machine frame 2. A pallet return path 21 is provided on the starting end side.
A reversing guide rail 27 is provided to guide the pallet 11 from the pallet to the supply section 23, and a reversing guide rail 28 is also provided on the terminal end side, and these reversing guide rails 27 and 28 are arranged in a channel shape as described above. It is formed.

Feeder conveyors 30 and 31 are provided along the reversing guide rails 27 and 28, respectively, and a carry-in device 32 is provided opposite the supply section 23, and a carry-out device 3 is provided opposite the take-out section 24.
3 is arranged. The carry-in device 32 and the carry-out device 33 are, for example, of a suspended conveyance type, or may be of a type that uses a common conveyance device depending on the case.

A fast forwarding device 35 is provided at a predetermined location on one side of the transport path 20. In other words, the fast forwarding device 3
Reference numeral 5 denotes a case 36 that is provided at a position facing the supply section 23 and the take-out section 24, and at a position between these two sections, and is integrated into the machine frame 2 side.
, a movable member 38 disposed within the case 36 and supported and guided by a guide body 37 and movable in the direction along the conveyance path 20; a rack 39 attached to the lower surface of the movable member 38; A pinion 40 that is always engaged with the pinion 40, a drive device 41 that is interlocked with the pinion 40 and can rotate in forward and reverse directions and that is attached to the case 36, and a slit 42 that is connected from the side of the movable member 38 and formed in the case 36. A protruding bracket 43 and this bracket 43
It consists of an upward cylinder device 44 attached to the piston rod, and a connecting member 45 that is attached to the piston rod and can be freely engaged with the operating portion 52A from below.

Next, the operation of the above embodiment will be explained.

The empty pallet 11 is returned to the pallet return path 21 and sent to the supply section 23 by the cooperation of the slat conveyor 1 and the feeder conveyor 30. At this time, the fast forwarding device 35 of the supply section 23
In this case, the connecting member 45 is located at the most upstream position and is lowered as shown by the solid line in FIG. Palette 1 was therefore sent out.
By activating the cylinder device 44 when the first operation section 52A faces the connection member 45, the connection member 45 is engaged with the operation section 52A as shown by the imaginary line in FIG. With this operation, the locking pin 52 is raised against the spring 55,
The positioning is released by pulling it out from the through hole 51. In this state, the drive device 41 is operated to move the movable member 38 downstream via the pinion 40 and the rack 39. This movement force is calculated by bracket 4
3. It is transmitted to the pallet 11 via the cylinder device 44, the connecting member 45, and the engaging/disengaging pin 52, and moves the pallet 11 downstream at a higher speed than the moving speed of the slat conveyor 1 (fast forwarding). The pallet 11 is moved by moving the roller 1 inside the guide member 10.
5 rolls, so that it is carried out smoothly without sideways slipping. Palette 11 moved like this
As shown in FIG. 5, the downstream pallet 11 is fast-forwarded by a distance L from the normal conveyance pitch P to face the supply section 23. After rapid forwarding, the pallet 11 can be stopped facing the supply section 23 while the slat conveyor 1 is continuously operated by waiting in the state shown by the imaginary line in FIG. During this stop, the automobile 22 carried in by the carrying-in device 32 is lowered by the lowering of the carrying-in device 32, and the jig 16 is lowered.
are supported on the pallet 11 side via
Exit from. All such loading and supplying is performed within the time period in which the distance L described above disappears. When the distance L disappears and the predetermined conveyance pitch P is restored, the cylinder device 44 is reversely actuated (contracted), and the force of the spring 55 is used to lower the engagement pin 52 to open the through hole. 51, and at the same time, separates the connecting member 45 from the operating section 52A. As a result, the pallet 11 is moved together with the slat conveyor 1, and various operations are performed while the automobile 22 is being transported on the transport path 20. At that time, the work was carried out on the car 22
This may be carried out while continuously conveying, or the distance L may be increased using the rapid forwarding device 35 as described above, and the vehicle 11 may be stopped within the time obtained thereby.In this case, the automatic working device can be easily adopted. After completing the intended work, the automobile 22 is sent to the take-out section 24 by the fast-forwarding device 35, and is received by the take-out device 33 and taken out while the car is stopped. The empty pallet 11 is sent out to the pallet return route 21 while being guided by the reversing guide rail 28 by cooperation between the slat conveyor 1 and the feeder conveyor 31, and is returned on this pallet return route 21. Ru.

Palette 1 due to the change of car model 22
1 change is made. That is, as shown in the imaginary line in FIG. 7, the work cart 60 is positioned on the side of the conveyance path 20, and the pallet 11 conveyed by the slat conveyor 1 is moved upward by a fork or a crane on the side of the work cart 60. Just take them out one by one.
Further, the new pallet 11 is assembled by a reverse operation to that described above, and the conveyance pitch P is also changed at this time.

Since the pallet 11 on the conveyance path 20 can be removed upward in this manner, the defective product can be taken out of the line by removing the pallet 11 along with the defective automobile 22, for example.

In the above embodiment, the roller 15 is used as the guided member.
However, this may be a block-shaped sliding member or the like. Furthermore, although a concave rail material is shown as the guide member 10, it may also have a structure in which a pair of left and right rods are provided. Further, although a shuttle type using a latch and pinion is shown as the rapid feed device 35, it may be of a conveyor type or the like.

In the above embodiment, the pallets 11 are returned at every conveying pitch P, but the pallet return path 21 may be constructed by an accumulation conveyor.
Further, the palette 11 can also be changed using a reversing section or the like.

Note that when all the pallets 11 are removed and no new pallets 11 are installed, the slat plate 6 of the slat conveyor 1 is used as a mounting surface to transport objects without the need for the jig 16. This means that the present invention can be realized by adding the pallet 11, positioning device 50, etc. to an existing slat conveyor.

Effects of the Invention According to the present invention having the above structure, the moving force of the continuously operated slat plate is transmitted to the pallet via the engagement pin of the positioning device, and the pallet can be moved together. Therefore, objects to be conveyed supported by pallets via jigs can be conveyed on the conveyance path. When transporting an object of a different shape, it is sufficient to remove the current pallet, install a pallet with a jig suitable for the next object, and position it with the positioning device. Overall changes can be made quickly and easily. In addition, at a predetermined point on the conveyance route, the positioning device releases the positioning by penetrating the engagement/disengagement pin into the slat plate, and the fast-forwarding device acts on the pallet via the engagement/disengagement pin to move the guided member to the guide member. While being guided, the pallet can be moved at a higher speed than the transport speed of the slat conveyor device. This saves distance (time) and allows the pallet to be stopped for the saved time, during which time the transported objects can be worked on by automated equipment or the transported objects can be loaded without using a pallet lift device. Wholesaling work can be performed easily and accurately. Note that when all the pallets have been removed, the objects to be transported can be transported using the slat plate as a mounting surface without the need for a jig.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional front view, Fig. 2 is a longitudinal sectional front view of the main part, Fig. 3 is an exploded perspective view of the main part, and Fig. 4 is a schematic side view of the whole. , FIG. 5 is a schematic plan view of the same, FIG. 6 is a schematic side view of the main part, and FIG. 7 is a longitudinal sectional front view of the main part showing the operating state. 1...Slat conveyor, 5...Roller chain, 6...Slat plate, 10...Guide member, 1
1... Palette, 12... Palette board, 13...
Ended chain, 15...roller (guided member),
16... Jig, 18... Guide roller, 20...
Conveyance route, 21... Pallet return route, 22...
Automobile (object to be transported) 23... supply section, 24... take-out section, 26... guide rail, 27, 28...
Reversing guide rail, 32... Carrying device, 33...
Unloading device, 35... Rapid forwarding device, 38... Movable member, 44... Cylinder device, 45... Connection member, 50... Positioning device, 52... Engaging/disengaging pin,
52A...operation unit, 60...work trolley.

Claims (1)

[Scope of utility model registration request] In a slat conveyor device in which a large number of slat plates are attached to a drive chain, a guide member is provided in the length direction on the surface of the slat plate, and a plurality of pallet plates are connected so as to be relatively swingable to form a pallet, A jig is provided on the front surface of the pallet, a guided member guided by the guide member is provided on the back surface, and a positioning device is provided that can be positioned by penetrating between the slat plate and the pallet with an engagement pin, The present invention is characterized in that a fast-forwarding device is provided which uses the positioning device to release the engagement pin from penetrating the slat plate, drives the pallet via the engagement pin, and rapidly moves the pallet relative to the slat plate. Slut conveyor equipment.