JPH0111395Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a buffer storage installed between each processing device in a series of processing devices.

When processing each process using separate processing equipment, it is desirable to connect and install these processing equipment in series in order to increase work efficiency.

However, when performing maintenance or adjustment on one of these directly connected processing devices, this series of processing devices must be stopped.

To avoid such inefficiency and to stop only one processing device that requires maintenance adjustment and start operating other processing devices, it is necessary to connect each processing device via buffer storage. Good.

For example, as shown in the block diagram of the processing equipment group shown in Figure 1, processing equipment M that mounts a DIP type IC on a printed board.
1 and a processing device M2 on which a radial terminal component for the next step is mounted are connected via a buffer storage S1. Further, the processing device M2 is connected to the processing device M3 for the next process, in which the parts connected and stored in a chain with tape are mounted, via a buffer storage S2.

When you insert buffer storage like this,
For example, even if processing device M3 breaks down, processing device M1
By accommodating and temporarily storing printed boards on which parts are mounted in processing device M2 in buffer storage S2, processing device M1 and processing device M2 can be operated as before regardless of whether processing device M3 stops operating. I can do it.

[Conventional technology]

A conventional buffer storage is constructed as shown in a side view in Fig. 2A and a perspective view in Fig. 2B.

As shown in FIG. 2, conventionally, a buffer storage 1 is constructed by attaching a casing 9 for temporarily storing plate-shaped parts, such as printed circuit boards 7, to the top of a lifter 3 that moves up and down in desired steps. be.

The casing 9 is box-shaped with open front and rear surfaces, and is provided with a number of opposing guide shelves 2 on the inner surfaces of vertically opposing side plates for inserting and accommodating the printed boards 7 in a horizontal manner. .

A drive screw 5, which is rotated as desired by a step motor 4, is vertically screwed into a screw hole provided at the end of the lifter 3. Further, a guide bar 6 is vertically loosely fitted into a pair of guide holes provided in the lifter 3, respectively.

With this kind of mechanism, lifter 3
By driving the step motor 4 as desired, a desired step movement is performed in the vertical direction.

When the housing 9 is lowered to the lowest position, the air cylinder means (not shown) attached to the pre-processing device is driven at the level L where the uppermost guide shelf 2 is located, and the printed board 7 is removed from the pre-processing device. is inserted into the guide shelf 2 X1.

Also, at this level L, an air cylinder means (not shown) attached to the post-processing device is driven to pull out the printed board 7 from the casing 9 and send it to the post-processing device.
Configured to X2.

Therefore, if the post-processing equipment is operating smoothly, the printed board 7 can be handled using only the uppermost guide shelf 2.
Acceptance and disbursement of goods are carried out.

When the post-processing device is stopped, the lifter 3 moves up one step Y1, and the printed board 7 is inserted into the lower empty guide shelf 2. By sequentially repeating this operation, the plate-shaped parts 7 can be accommodated on all the guide shelves 2 of the housing 9 and temporarily stored.

In addition, if the post-processing equipment is restored, level L
The printed board 7 inserted into the guide shelf 2 corresponding to , that is, the printed board 7 inserted into the housing 9 last.
is sent to post-processing equipment.

Therefore, when both the pre-processing device and the post-processing device are operating smoothly, the printed board 7 inserted into the housing 9 last is delivered to the post-processing device first.

When the work of the pre-processing device is finished and the printed board 7 is no longer sent out from the pre-processing device, the lifter 3 descends by one step Y2 and sends out the printed board 7 stored at the level L position to the post-processing device. .

By repeating this operation, all the printed boards 7 stored in the housing 9 are delivered to the post-processing device.

[The problem that the idea aims to solve]

However, traditional buffer storage
Because it is a last-in, first-out buffer storage,
When changing the model of a plate-shaped component, such as a printed board, the pre-processing equipment must be stopped until all processing steps in a series of processing equipment groups are completed. This is because if this is not done, unprocessed printed circuit boards will remain in each buffer storage.

That is, conventional buffer storage has the problem of lowering the operating rate of processing equipment.

The present invention was created in view of these points, and its purpose is to provide buffer storage that improves the operating rate of a series of processing equipment groups.

[Means to solve the problem]

In order to achieve the above object, the present invention, as illustrated in FIGS. 3 to 5, places a plate-like part on a lifter 14 that is driven up and down from a processing device in the previous process.
For example, a receiving storage section 11 that receives a printed board 7, a fluid cylinder, such as an air cylinder 15, installed on a lifter 14, and a fluid cylinder, for example, an air cylinder 15, which is connected to and attached to the air cylinder 15 so as to be able to push the rear edge of the printed board 7, and perform a desired reciprocation. It has a delivery means 30 consisting of a driven hook 16 and delivers the printed board 7 stored in the guide shelf 13 to the payout storage section 12, and belt shelves 25 arranged at equal pitches on the outer surface of each. A pair of rotating endless belts 24A and 24B are installed so as to be driven vertically and in parallel in synchronization, and the printed board 7 sent out from the receiving storage section 11 is stored horizontally between the opposing belt shelves 25. A payout storage section 12 for temporary storage is provided.

Then, the guide shelf 1 of the receiving storage section 11
The printed board 7 received by the transfer means 30
Accordingly, the printed board 7 of the payout storage section 12
The print board 7 is delivered to the lower empty belt shelf of the belt shelf 25 that accommodates the printed board 7, and the delivery storage section 12 sends out the printed board 7 stored in the uppermost stage to a processing device for a subsequent process.

[Effect]

As mentioned above, the present invention is configured as a first-in/first-out buffer storage.

That is, when one processing device in a series of processing devices breaks down, that processing device is stopped and repaired. When the processing equipment returns to normal operation, the previously processed printed circuit board temporarily stored in the buffer storage is processed first.

Therefore, even if one processing device is stopped and the pre-processing device is started and another model of printed board is input,
There is no problem in processing the printed board. Then,
The operating rate of a series of processing equipment is improved.

〔Example〕

The present invention will be specifically explained below with reference to the drawings. Note that the same reference numerals indicate the same objects throughout the figures.

3 to 5 are views showing one embodiment of the present invention, in which FIG. 3 is a side view of the buffer storage, FIG. 4 is a perspective view showing the configuration of the receiving storage section, and FIG. It is a front view of a payout storage part.

As shown in FIG. 3, the buffer storage 10 is located at a level L where the lifter 14 that is driven up and down is raised and the guide shelf 13 is at its highest position. ), the printed board 7 is moved from the pre-processing device to the guide shelf 1.
3, the lifter 14 is lowered to a desired position Y3, and the printed board 7 is transferred X4 to the payout storage section 12 by the delivery means 30.

In addition, in the buffer storage 10, the printed board 7 is received from the receiving storage section 11 and stored in the uppermost belt shelf 25 among the empty belt shelves.
When the belt shelf 25 is at the highest level (level L) after the step movement and rising, the belt shelf 25 is at the highest position, and a delivery storage section 12 is provided for delivering the printed board 7 to a post-processing device.

More specifically, as shown in FIG. 4, the receiving storage section 11 has a drive screw 17 vertically screwed into a screw hole provided at the end of the lifter 14 to be rotated as desired by a step motor (not shown). ,
A guide bar 18 is vertically loosely fitted into a pair of guide holes of the lifter 14, respectively.

On the other hand, a pair of side plates are provided facing each other on the upper surface of the lifter 14, and on the opposing inner surfaces of each side plate,
A pair of guide shelves 13 are provided. A printed circuit board 7 is horizontally suspended and supported on the pair of guide shelves 13.

The delivery means 30 is the guide shelf 1 of the lifter 14.
an air cylinder 15 attached to the lifter 14 below 3; and a hook 16 connected to the air cylinder 15 and horizontally reciprocated in the direction of the dispensing storage section 12.
It is made up of.

The hook 16 can be tilted up and down into a vertical position and a sideways position by a mechanism not shown. The hook 16 is attached to the printed board 7 housed in the guide shelf 13 in an upright state.
It is caught on the rear edge (the edge on the near side in the figure). In this state, the air cylinder 15 is driven, the hook 16 moves in the direction of the payout storage section 12, and the printed board 7 is transferred to the payout storage section 12.

When the printed board 7 is transferred, the hook 16 falls sideways, the air cylinder 15 returns, the hook 16 retreats, and returns to its original position.
Wait until the printed board 7 is inserted.

As described above, in the lifter 14 equipped with the delivery means 30, when the printed board 7 is stored in the guide shelf 13, a sensor (not shown) detects that the printed board 7 is stored, and a step motor (not shown) is activated. Drives and descends Y3.

During this descent, another sensor (not shown) scans the belt shelves 25 of the adjacent delivery storage section 12 to detect the topmost empty belt shelf, and the lifter 14 stops at that position.

When the lifter 14 stops, the air cylinder 15 mentioned above operates to take out the printed board 7 and transfer it to the storage section 12 X4.

As shown in FIG. 5, the delivery storage section 12 is composed of a pair of endless belts 24A and 24B that rotate in steps and have belt shelves 25 arranged at equal pitches on their respective outer surfaces.

An endless belt 24A having belt shelves 25 arranged radially at equal pitches on the outside is stretched between a lower drive-side pulley 22A and a driven-side pulley 23A mounted directly above.

Furthermore, belt shelves 25 are provided radially on the outside at a pitch equal to the pitch of the belt shelves of the endless belt 24A.
It is stretched between 3B.

This pair of endless belts 24A, 24B
The opposing belt portions rise in parallel and are arranged side by side at intervals that allow insertion of the printed boards 7.
Further, the drive shafts 21A and 21B of the respective drive side pulleys 22A and 22B are configured to make step movements in synchronization.

This payout storage section 12 accommodates the printed boards 7 in a horizontal manner between the corresponding belt shelves 25, and performs an upward step movement in synchronization with the operation of the post-processing device to print the printed boards. It stops at the level L position where plate 7 has been transferred to the top stage,
The printed board 7 is drawn out from the belt shelf 25 by an air cylinder means (not shown) attached to the post-processing device and is sent to the post-processing device.

Since the present invention is constructed and operates as described above,
This is so-called first-in, first-out buffer storage.

The present invention is not only applicable to printed boards, but can also be applied to other plate-like parts.

[Effects of the invention] As explained above, the present invention is a buffer storage with a first-in/first-out structure, so even if one processing device breaks down, the plate parts stored in the buffer storage can be Regardless of the model, it is possible to put a plate-shaped part of a new model into the pre-processing equipment and operate the processing equipment group without any problems, and it is possible to improve the operation rate of the processing equipment group. It has an excellent effect on

[Brief explanation of the drawing]

Figure 1 is a configuration diagram of a processing equipment group installed via buffer storage, Figure 2 is a diagram showing a conventional buffer storage, where A is a side view, B is a perspective view, and Figures 3 to 5. The figures show an embodiment of the present invention; Fig. 3 is a side view of the buffer storage;
The figure is a perspective view showing the structure of the receiving storage section, and FIG. 5 is a front view of the dispensing storage section. In the figure, M1, M2, M3 are processing equipment, S
1, S2 is buffer storage, 1, 10 is buffer storage, 11 is acceptance storage section, 1
2 is a delivery storage section, 2 and 13 are guide shelves,
3 and 14 are lifters, 5 and 17 are drive screws, 7 is a plate-shaped component, 21A and 21B are drive shafts, 24A and 2
4B is endless belt, 25 is belt shelf, 30
indicates the means of delivery.

Claims (1)

[Claims for Utility Model Registration] A receiving storage section 11 equipped with a guide shelf 13 for receiving a plate-shaped part 7 from a processing device in a previous process on a lifter 14 that is driven up and down, and a fluid cylinder installed in the lifter 14. 15,
and a hook 16 connected to the fluid cylinder 15 so as to be able to push the rear edge of the plate-like part 7, and driven back and forth as desired, and dispensing the plate-like part 7 housed in the guide shelf 13. A pair of endless belts 24A and 24B, which have a delivery means 30 for sending out to the storage section 12 and belt shelves 25 arranged at equal pitches on each outer surface, and rotate in steps, are vertically parallel and synchronously driven. a dispensing storage section 12 that accommodates and stores the plate-like parts 7 that are mounted in such a manner and sent out from the receiving storage section 11 in a horizontal manner between the opposing belt shelves 25, and the guide shelf 13 The plate-shaped part 7 received in
The delivery means 30 sends out the plate-shaped parts 7 to the lower empty belt shelf of the belt shelf 25 that accommodates the plate-shaped parts 7, and the delivery storage section 12 sends out the plate-shaped parts 7 stored in the uppermost belt shelf 25. A buffer storage characterized in that it is configured to send the part 7 to a processing device in a subsequent process.