JPH06156700A - Cell system conveyor device - Google Patents

Abstract

PURPOSE:To provide a cell system conveyor device capable of making the flow of pallet automatically smooth even in the case of a working conveyor and a working machine at a downstream cell being stopped. CONSTITUTION:In a cell system conveyor device, plural cells formed of carrying conveyors 1, working conveyors 2 and working machines 5 are disposed on a line, and a transfer means 4 is provided to select the carrying conveyor 1 and working conveyor 2 between the respective cells to transfer a pallet 3. In such a cell system conveyor device, a stock conveyor 8 for receiving the pallet 3, disturbing the flow of pallets, from the transfer means 4 is disposed at least at the cell in the lowest reaches.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cell type conveyor device used in an automatic assembly line or the like.

[0002]

2. Description of the Related Art A cell type conveyor device is known as a transfer conveyor device. 3 and 4 show a conventional cell type conveyor device.

In FIGS. 3 and 4, 11 is a conveyor for conveyance, 12 is a conveyor for work, 13 is a pallet for placing a work, 14 is a transfer means, 15 is a work machine for performing work on the work, and 16 is a transfer machine. A guide for guiding the mounting means 14 and a detector 17 for detecting the state of the pallet 13 on the transfer means 14.

As shown in FIG. 4, a plurality of transfer conveyors 1
One and a plurality of transfer means 14 are alternately arranged on the line. Among the conveyors 11 for conveyance, the one located at the uppermost stream is the work supply conveyor x, and the one located at the most downstream is the work discharge conveyor y. For each of the transfer conveyors (11), a, b, c excluding the above two conveyors x, y, a work conveyor (12), parallel to them,
a ', b', and c'are arranged. Each work conveyor (12), a ', b', c'has a work machine (15), A,
B and C are arranged, and each work conveyor (12), a ',
The work on the pallet 13 received by b ′ and c ′ is worked. The work machines (15), A, B, and C perform the same work.

Conveyor 11 and work conveyor 12
A "cell" is constituted by the work machine 15 and, in the case shown in FIG. 4, (a, a ', A) is the first cell, (b, b',
Three cells, a second cell in B) and a third cell in (c, c ′, C), are configured.

Between the work feeding conveyor x and the first cell, between the first cell and the second cell, between the second cell and the third cell, and between the third cell and the work discharging conveyor y. Transfer means (14), α, β, γ, and δ are respectively provided in the spaces.

The pallet 13 transferred from the work supply conveyor x to the transfer means α is sent to the first cell transport conveyor a when the first cell work conveyor a'is full. If not, it is sent to the work conveyor a ′. The pallet 13 that has completed the work in the first cell or the pallet 13 that has been sent by the conveyor a for conveyance.
Is received by the transfer means β, and then the work conveyor b ′ of the second cell or the transfer conveyor b is informed of whether the work conveyor b ′ is full and whether the work on the pallet 13 is completed. It is reprinted based on that information. Second
The transfer means γ arranged in the middle of the cell and the third cell also has the same function. The transfer means δ transfers the pallet 13 from the third cell to the work discharge conveyor y.

[0008]

According to the above conventional example,
In the most downstream cell, that is, the third cell, the unworked pallet 13 is drawn into the work conveyor c ′ even when the work conveyor c ′ of the own machine is full.
For this reason, when the pallet 13 received from the second cell is unworked, the pallet 13 stands by on the transfer means γ, which hinders the distribution of the pallet 13 sent from the upstream side.

Especially for some reason, the working machine C of the third cell
And the work conveyor c'stops and the work conveyor c '
If the pallet 13 continues to be full, the distribution of the pallets 13 on the entire line will stop.

For this reason, the pallet 13 that has been worked on the upstream side cannot be discharged, the upstream cell is also stopped, and the entire line is stopped. In such a case, in the conventional example, it was necessary to manually remove the pallet 13 that obstructs the flow.

[0011]

In order to solve the above problems, the present invention has a plurality of cells, each of which is composed of a conveyer for conveyor, a conveyor for work, and a work machine, arranged on a line, and between the cells. In a cell-type conveyor device equipped with a transfer means for transferring a pallet by selecting a conveyor for work and a conveyor for work, a pallet 9 that impedes pallet distribution is received from the transfer means to at least the most downstream cell. It features a stock conveyor.

[0012]

According to the present invention, when the working conveyor of the cell on the downstream side is full and the pallet on the transfer means is unworked, the pallet is transferred to the stock conveyor.

Therefore, even if the working machine or the working conveyor of the cell on the downstream side is stopped for some reason, it does not hinder the distribution of the pallet that has been worked on the upstream side, and the pallet can be distributed smoothly. .

[0014]

Embodiments of the present invention will be described with reference to FIGS. 1 and 2.

In the figure, 1 is a conveyer conveyor, 2 is a work conveyor, 3 is a pallet on which a work is placed, 4 is a transfer means, 5 is a working machine for performing work on the work, and 6 is a transfer means 4. A guide for guiding, 7a is an arrival sensor for detecting arrival of the pallet 3, 7b is a completion sensor for detecting whether or not the work on the pallet 3 is completed, 8 is a stock conveyor, 9 is a signal of various detectors. Is a sequence controller for inputting and outputting signals to various driving devices.

As shown in FIG. 2, a plurality of conveying conveyors 1
And a plurality of transfer means 4 are alternately arranged on the line.
Among the conveyors 1 for transportation, the one located at the uppermost stream is the work supply conveyor x, and the one located at the most downstream is the work discharge conveyor y.

For each of the transfer conveyors (1), a, b, c excluding the two conveyors x, y, the work conveyors (2), a ', b', c'are parallel to them. It is arranged. Further, the stock conveyor 8 is further provided in parallel with the most downstream transfer conveyor c of the three transfer conveyors.
Are arranged. Each work conveyor (2), a ',
Working machines (5), A, B, and C are arranged in b ′ and c ′,
The work on the pallet 3 received by each work conveyor (2) a ′, b ′, c ′ is worked. Working machine (5), A,
B and C perform the same work.

A "cell" is constituted by the conveyer conveyor 1, the work conveyor 2 and the work machine 5, and in the case shown in FIG. 2, (a, a ', A) is the first cell, (b, b', In B), three cells, the second cell and the third cell in (c, c ′, C), are configured, and the stock conveyor 8 is attached to the third cell.

Between the work feeding conveyor x and the first cell, between the first cell and the second cell, between the second cell and the third cell, and between the third cell and the work discharging conveyor y. Transfer means (4), α, β, γ, and δ are respectively provided in each of the above.

The transfer means 4 is guided by the guide 6 and moves in a direction perpendicular to the longitudinal direction of the line. The first transfer means α receives the pallet 3 from the work supply conveyor x and transfers it to the work conveyor a ′ or the transfer conveyor a of the first cell. At this time, the working conveyor a ′
When the pallet 3 is full, the pallet 3 is transferred to the transfer conveyor a, and otherwise, it is transferred to the work conveyor a '.

The second transfer means β receives the pallet 3 from the working conveyor a ′ of the first cell or the carrying a. The arrival sensor 7a confirms the arrival of the pallet 3 and the completion sensor 7b detects whether or not the work on the pallet 3 has been worked. These pieces of information are sent to the sequence controller 9. At the same time, information on whether or not the work conveyor a ′ of the second cell is full is sent to the sequence controller 9.

Based on the above information, the sequence controller 9 instructs the transfer means β as to the transfer destination as follows.

Unworked and full → transport conveyor b unworked and not full → working conveyor b ′ working and full → transporting conveyor b working and not full → transporting conveyor b second transfer as described above Transfer from the first cell to the second cell is performed by the mounting means β.

The third transfer means γ receives the pallet from the work conveyor b ′ or the transfer conveyor b of the second cell,
The transfer destination is determined as follows by a command from the sequence controller 9 based on the same information as above.

Unworked and full → Stock conveyor 8 Unworked and not full → Work conveyor c'Worked and full → Transport conveyor c Worked and not full → Transport conveyor c Stock conveyor 8 is the third cell work When the conveyor c'for use is full, the unworked pallet 3 is temporarily stored and is configured to be reciprocable. When the working conveyor c ′ of the third cell or the working machine C is broken, the stock conveyor 8 becomes full. In this case, the unworked pallet 3 on the stock conveyor 8 is
The work is discharged to the work discharge conveyor y via the fourth transfer means δ. On the other hand, when the working conveyor c ′ is temporarily full and then is not full, the unworked pallets on the stock conveyor 8 are returned to the third transfer means γ, which causes the working It is transferred to the conveyor c '. The fourth transfer means δ receives the pallet 3 from the work conveyor c ′ of the third cell, the transfer conveyor c or the stock conveyor 8 and transfers it to the work discharge conveyor y.

In the above embodiment, the conveyor 1, work conveyor 2, stock conveyor 8 and transfer means 4 are all belt conveyors, but other types of conveyors or transfer means may be used. Good. Further, in the above embodiment, the stock conveyor 8 is attached only to the most downstream cell, but it is also possible to attach this stock conveyor 8 to another cell.

[0027]

According to the present invention, there is provided a cell type conveyor device capable of automatically and smoothly distributing pallets even when a work conveyor or a work machine in a cell on the downstream side is stopped. You can

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of an embodiment of the present invention.

FIG. 2 is a plan view showing the overall configuration.

FIG. 3 is a perspective view showing a main part of a conventional example.

FIG. 4 is a plan view showing the overall configuration.

[Explanation of symbols]

 1 Transport Conveyor 2 Working Conveyor 3 Pallet 4 Transferring Device 5 Working Machine 8 Stock Conveyor

Claims (1)

[Claims] 1. A plurality of cells composed of a conveyor for work, a conveyor for work and a work machine are arranged on a line,
In a cell type conveyor device provided with a transfer means for transferring a pallet by selecting a conveyor for conveyor and a conveyor for operation between cells, at least in the most downstream cell,
A cell-type conveyor device having a stock conveyor for receiving pallets from a transfer means that impedes pallet distribution.