JPS6228583Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a conveyor pallet line that is used to return objects on pallets that have completed a predetermined work to the conveyor line again on a stand installed in parallel with the conveyor. This relates to a return device.

Automobile engines that are produced one after another through automation are subjected to various performance tests before being assembled into the main body, and engines that are found to be defective as a result of the tests are repaired.
Therefore, when an engine test is performed using a conveyor line, it is necessary to switch an engine in which a defect is found from the line to a repair stand, and after repair, return it to the conveyor line.

The present invention aims to provide a device for returning a pallet to a conveyor line from the stand to the conveyor line, which is intended to automatically return pallets from the stand to the conveyor line, which previously had to be done manually by an operator. The gist of this is that a stand having an upper surface higher than the upper surface of the pallet guide is placed close to one side of a conveyor conveying pallets, which is equipped with pallet guides on both sides. A lifting device is installed in parallel and the top surface of the lifting portion is at the same height as the top surface of the stand when the stand is raised, and is provided at the lower part of the conveyor corresponding to the position of the stand, and is placed on the top surface of the lifting portion of the lifting device when rising. A limit switch is attached to the pallet guide on the side opposite to the installation position of the stand at the pallet position where the pallet is to be lifted, and a limit switch is attached to the pallet guide on the side opposite to the installation position of the pallet in the conveyed state, and a limit switch is attached to the pallet guide side on which the limit switch is attached. The present invention is characterized in that a dog for operating a limit switch is provided, and a stopper with which a side of the pallet comes into contact when the elevating device is raised is provided on the pallet guide in parallel with the limit switch.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The apparatus for returning pallets to a conveyor line according to the present invention will be explained below based on the embodiment shown in the drawings.

FIG. 1 is a plan view when the conveyor pallet returning device to the line according to the present invention is applied to an engine repair stand in an engine test system using a conveyor line. The stands 2 are arranged close to each other with a height difference (height higher than the upper surface of a pallet guide 7, which will be described later). The repair stand 2 is a stand for the purpose of repairing an engine in an engine test system using a conveyor line, and is a stand that is equipped with an elevating device (elevating device (no. (Refer to Figure 2b) 3, the pallet 5 carrying the engine 4 becomes free from the movement of the roller chain 8 of the conveyor 1.
Coupled with the fact that the conveyor 1 and the repair stand 2 are on the same level, the pallet 5 on which the engine 4 is placed is manually pulled into the repair stand 2 by the operator. Since the repair stand 2 is provided with a ball caster 6, the operator can freely change the orientation of the pallet 5, making it easier to repair the engine 4. In the conveyor 1 shown in FIG. 1, 7 is a pallet guide that guides the pallet 5 as it is conveyed on the conveyor 1, 8 is a roller chain of the conveyor 1, 9 is a roller guide, and 10 is a roller.

On the other hand, when the repair is completed, the height difference between the conveyor 1 and the repair stand 2 is at the same level due to the lifting of the lifting device 3 mentioned above, so the engine 4
The pallet 5 loaded with can be easily sent from the stand 2 onto the conveyor 1. At this time, repair stand 2 and conveyor 1 on the opposite side
A limit switch 11 is attached to the upper pallet guide 7, and a dog 12 is provided on one side of the pallet 5 protruding from the pallet 5. On the other hand, the pallet guide 7 to which the limit switch 11 is attached is provided with a dog 12 on one side of the pallet 5 even if it is at the same level. Since the stopper 13 that comes into contact with is provided, the characteristic functions of the present invention are achieved by the operation of these various devices.

In other words, as shown in FIG. 2, when the engine 4 is returned to the conveyor line after repair, the direction of the pallet 5 on which the engine 4 is placed is kept constant, taking into account that it will be tested at another location. It is necessary to set the limit switch 1 mentioned above.
1 and the dog 12 on the pallet 5 determine this directionality. In other words, even if one side of the pallet 5 without the dog 12 comes into contact with the stopper 13, the limit switch 11 is not pressed, so the lifting device 3 remains elevated and the conveyor 1 and repair stand 2 remain at the same level. Therefore, the pallet 5 is not conveyed without being placed on the roller chain 8. However, the dog 12 protruding from the pallet 5 is not connected to the pallet guide 7.
When the upper limit switch 11 is pressed, the direction of the engine 4 at this time is correct, and the lifting device 3 linked to the limit switch 11 is lowered, creating a step between the conveyor 1 and the repair stand 2.
As a result, the bottom of pallet 5 becomes roller chain 8.
, and the conveyor 1 starts conveying the pallet 5 to the line.

It goes without saying that the present invention is applicable not only to an engine test system using a conveyor line, but also to any system in which a conveyor and a stand are installed side by side.

As described above based on the embodiment shown in the drawings, according to the apparatus for returning conveyor pallets to the line according to the present invention, conveyor pallets are returned to the conveyor line with a predetermined directionality. It is possible to return it.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the conveyor pallet return device according to the present invention applied to an engine repair stand in an engine test system using a conveyor line, and Fig. 2 is a detailed view thereof. , a is a plan view, and b is a side sectional view. In the drawings, 1 is a conveyor, 2 is a repair stand, 5 is a pallet, 7 is a pallet guide, 11 is a limit switch, 12 is a dog, and 13 is a stopper.

Claims (1)

[Scope of utility model registration request] A stand having a top surface higher than the upper surface of the pallet guide is installed adjacent to the conveyor on one side of a conveyor conveying pallets, which is equipped with pallet guides on both sides. An elevating device that is at the same height as the upper surface is provided at the lower part of the conveyor corresponding to the position of the stand, and a side opposite to the installation position of the stand at a pallet position placed on the upper surface of the elevating part of the elevating device when ascending. A limit switch is attached to the pallet guide of the pallet, and a dog is provided on one side of the pallet guide, on which the limit switch is attached, of the pallet in a conveyed state, protruding from the pallet and actuating the limit switch when the lifting device is raised. A device for returning a pallet to a line for a conveyor, characterized in that the pallet guide is provided with a stopper, which the side of the pallet comes into contact with when the pallet is raised, and is arranged in parallel with the limit switch.