JPH0431987B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an automatic sheet feeding device.

In particular, the present invention aims to provide a device that can automatically select and supply various types of raw fabric to a spreading machine.

JP-A No. 59-78056 is a conventional device that has such a device, but there is a limit to the structure of the rotating body that supports the web and rotates up and down, and many types of web are always waiting. There is a problem in that it is difficult to store the battery, and it takes a relatively long time to take it out or replace it.

The present invention is intended to solve the above-mentioned problems, that is, to contribute to improving productivity by freely and quickly performing the spreading work of a wide variety of products in small quantities.

Hereinafter, an example of implementing the present invention will be described based on the accompanying drawings.

Reference numeral 1 denotes a spreading table, and 2 a spreading machine installed at the end of the spreading table.The configurations of these machines are the same as those of the conventional ones, but in the present invention, the floor surface behind the spreading table 1 with the above structure is Rails 3, 3' are laid in parallel at the position, and a gate-shaped transport trolley 4 is installed so that it can travel back and forth.
Further, in the inner part of the transport truck 4, a large number of rack trucks each supporting the original fabric in a tiered manner are arranged in parallel.

To explain this in detail, the gate-shaped transport cart 4 has opposing pillar columns 4a, 4'a formed with grooves having a U-shaped cross section, and using these grooves, lift arms 4b, 4' for supporting the original fabric, which will be described later, are used. A lift bar 4c fixedly protruding at a certain distance from b is raised and lowered, and this is done by connecting the pillars 4a and 4' to each other via sliders 4d and 4'd having the lift bar 4c fixed to both ends thereof.
A chain 4 rotates by being spanned by chain rings 4e, 4f and 4'e, 4'f disposed at the upper and lower positions of 4'a.
g, 4'g. At this time, the chain rings 4e, 4'e are connected by the same shaft, and one of the chain rings is the main shaft of the motor 5, which is mounted on a base plate 4h equipped with rollers that engage with the rail 3 at the bottom of the pedestal 4a in the illustrated example. , by transmitting reverse drive to chain wheel 4f via chain 6. In addition,
In this example, the transport vehicle 4 runs on rails 3 and 3'.
A rack m is formed on the upper surface, and the rack gears 4i and 4'i that mesh with this are connected to the base plate 4 on the side of the pillars 4a and 4'a.
h, 4'h, and in the illustrated example, by rotating the rack gear 4'i on the side of the base plate 4'h by the forward and reverse drive of the motor 7 mounted on the base plate 4'h. Let it be done.

On the other hand, 8, 8', 8''... are gate-shaped shelf carts that support a large number of raw fabrics, and are lower in height than the gate-shaped transport cart 4 and are arranged inside thereof. Specifically, rails 9, 9' of a certain length are provided at inner positions of the rails 3, 3' and parallel to the rails 3, 3'.
A gate-shaped shelf trolley 8, 8', 8''...
A large number of shelf carts are installed in parallel, and each shelf cart is supported at multiple locations at a certain height on the opposing gate-shaped pillars, each protruding horizontally.
0, 10', 10'', . . . are provided, and a notch s is provided at each support end, through which the winding shaft 11a of the original fabric 11 is supported.

In this embodiment, each of the above-mentioned shelf carts 8, 8', 8''... is driven by a chain (timing belt) means disposed on the floor.
Each chain 12, 12', 12''... is each bridge plate 8a, 8'a, 8''a formed by connecting the bottom part of each gate-shaped pedestal.
... using the locking fittings 13, 13', 13''..., and each chain 12, 12',
12''... are chain rings 16, 16', 1 attached to support shafts 15, 15' of bearing means 14, 14' disposed opposite to each other on the floor surface away from both ends of the rails 9, 9'.
7,, 17', 18, 18'...
By the way, the spindle 15 is driven by the motor 19 and is rotated from the output shaft via a pulley 20, a timing belt 21, and a pulley 22. At this time, each chain ring 16, 17, 18... The clutches are attached to each other via electromagnetic clutches 23, 24, 25, etc., and are turned on and off by control commands from a sequence controller or microcomputer built into a control panel (not shown), during the replacement work described below. Each shelving truck is pulled so as to move laterally as appropriate, and the side portions of the shelving truck that support the original fabrics needed for the replacement work are opened at a certain interval, and thereby the openings are made. The transport cart travels and stops within the given interval, and by raising and lowering the lift bar 4c, the work of taking out the necessary raw fabric or storing the raw fabric that has been spread can be carried out smoothly. In addition, 26 in the drawing
is the roller installed on the shelf truck.

Next, the operation will be explained based on FIGS. 4A to 4L. Figure A shows the original fabric support arms 2a and 2' of the spreading machine 2.
Figures B to F show the state in which the lift bar 4c is lowered relative to a and the raw fabric 11 supported on the lift arms 4b, 4'b is placed. Next, the machine moves to the front side of the shelf cart (8' in the illustrated example) on which the original fabric to be spread is supported, takes it out, and waits. Specifically, the raw material to be taken out is input into the microcomputer in advance. For example, if the first material to be taken out is the second material from the top of the shelf cart 8', the clutch 23 is activated by a calculated command from the computer. , 25 are turned off, and in response, the clutch 24 is turned on and the motor 19 is driven (normally rotated) so that the shelf cart 8' travels a certain distance to the left via the chain 12'. A sufficient space necessary for the transport cart 4 to take out the original fabric is formed between '' and 8''.

When the transport cart 4 travels in this space under the drive of the motor 7 and stops (the stopping position is such that the tips of the lifting arms 4b, 4'b of the transport cart 4 that go up and down are aligned with the web support shaft of the shelf cart 8'). (a position that does not cause interference contact), the lifting motor 5 drives the chain 6 and the chain ring 4.
The chains 4g and 4'g rotate through f to lower the lift bar 4c, and the lift arms 4b and 4'b come to a position slightly below the support shaft position of the raw material 11 to be taken out on the shelf cart 8' and stop. (See Figure B) Then, drive the motor 7 to move the transport cart 4 a little toward the shelf cart 8' (to the right in the example shown), and lift arms 4b, 4'b will move. When it comes to the lower position of the web support shaft 11'a, it is stopped and the lifting motor 5 is driven to raise the lift bar 4c a little.
Then, in this state, drive the motor 7 to move the transport cart 4 a little away from the shelf cart 8' (see Figure C). to the left side) (see Figure D),
Then, drive the lift motor 5 to move the lift to the pillar 4.
Raise and lower it to the upper limit position of a, 4'a (see Figure E)
The transport cart 4 is again driven by the motor 7 to return to the rear position of the spreader 2 and wait (see Figure F).

Figure G shows the work of replacing the original fabric with respect to the spreading machine, in which the original fabric after the spreading operation is transferred to the spreading machine 2 at the rear end position of the spreading table 1, with the original fabric supporting arm 2a,
2'a is rotated counterclockwise, and at the limit position of rotation, the web support shaft 11'a comes off the claws P of the support arms 2a, 2'a, and is moved to the rear of the spreading machine 2. It will fall onto the original fabric receiving plate 2b formed protruding from the side, and the supporting arms 2a, 2'a
is rotated clockwise to the position shown by the dashed dot line in the figure, and a new original fabric supported by the lift arms 4b, 4'b of the transport cart 4 is placed on it. This is a repetition of what was already shown in Figure A. Next, the transport cart 4 is driven by the motor 7 to move a little away from the spreader 2 (moves to the left), and the lifting motor 5
, the lift bar 4c is lowered to a position slightly below the original plate receiving plate 2b of the spreading machine 2 (see Figure H).
In this state, the lift arms 4b, 4'b drive the motor 7 to move the transport cart 4 slightly toward the spreading machine 2 (move to the right) to support the web on the web receiving plate 2b, and the lifting motor 5 By driving the lift bar 4c up, the original fabric that has been subjected to the spreading operation is supported on the lift arms 4b, 4'b. (See Figure I) In Figures J to L, the spreading machine 2 is used to spread the new original fabric, and at this time, the transport trolley 4 carries the original fabric after the spreading operation to one of the rack trucks. (In the illustrated example, the third stage of the shelf cart 8) is stored therein, and the work of taking out the raw fabric to be rolled next is performed. That is, in Figure J, the shelf cart 8' is moved to the left to open the space between it and the shelf cart 8, and the transport cart 4 is stopped at a position where the original fabric does not interfere with the original fabric in the shelf cart 8, and the lift bar 4c is moved to the left. When it comes to a position slightly above the third stage of the trolley 8, it is stopped.

In Figure K, the transport cart 4 is slightly moved to the right in the above state, and the lift bar 4c is lowered slightly to place the raw material on the lift arms 4b, 4'b onto the support arms of the shelf cart 8. Afterwards, the transport cart 4 is moved slightly to the left, and the lift bar 4c is raised to the position of the next sheet to be spread (the second stage in the illustrated example) and then stopped.

In this way, the lift arm 4b of the transport vehicle 4,
4'b is used to hold the second stage of raw fabric of the shelf cart 8 to be newly spread, and then to be moved to the rear of the spreading table 1 and waited (as described above). The same steps as B to F) are repeated.

Although illustrations and explanations are omitted in this embodiment, the necessary running and stopping of the transport cart 4 in the above work,
Further, lifting and stopping of the lift bar are performed by appropriately arranging limit switch means, phototube switch means, etc., inputting the input to the controller, and processing the movement by a computer. The same applies to the movement of the shelf carts 8, 8', 8''... and the resulting return to their original state.However, at least the shelf cart 8 on the spreading table side should be fixed so that it does not move. In addition to the control by the microcomputer described above, the present invention may be implemented by a sequence controller.

The present invention is carried out as described above, and a large number of desired raw fabrics can be prepared at any time for an appropriate number of shelf carts, and during the spreading operation, the raw fabric to be spread next can be transferred to the transport cart. Since it is taken out and put into a waiting state, it is possible to dramatically improve work performance, and especially in today's era when it is required to spread a wide variety of products in small quantities, it is extremely useful for improving productivity. be.

[Brief explanation of drawings]

The attached drawings show an example of the implementation of the device of the present invention, in which Figure 1 is an overall perspective view, Figure 2 is a front view, and Figure 3 is a front view.
The figure is a plan view, and FIGS. 4A to 4L are action explanatory views. 1... Spreading table, 2... Spreading machine, 3, 3'... Rail, 4... Transport trolley, 4a, 4'a... Pillar,
4b, 4'b... Lift arm, 4c... Lift bar, 5... Motor, 8, 8', 8''... Shelf truck, 10, 10', 10... Support arm, 11... Original fabric, 12 , 12', 12''...Chien, 15, 1
5'...Spindle, 19...Motor, 23, 24,
25...Electromagnetic clutch.

Claims (1)

[Claims] 1. A pair of rails are arranged parallel to the rear of the spreader, and a gate-shaped transport trolley is provided so as to be able to move back and forth across both rails, and between the pillars of the transport trolley. In addition to installing a horizontal lift bar that can be raised and lowered, and installing a pair of lift arms that protrude perpendicularly toward the spreading table, the lift bar is placed in a position parallel to these rails at an inner position surrounded by the rails. A pair of rails is provided, and on the rails, a large number of gate-shaped shelf carts with a height lower than that of the transport cart are arranged side by side, and the opposite pillars of each shelf cart are placed at the same height position. Two or more support arms for horizontally supporting the sheet are attached so as to protrude in a direction perpendicular to the direction opposite to the sheet spreading table, and each shelf cart is configured to be able to run independently. Feeding device.