JPS6059119B2 - Automatic continuous cutting method for long sheet materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic continuous cutting method for a long sheet-like object, such as a cloth, for repeatedly cutting a long sheet-like object to a predetermined length.

Recently, a plurality of long sheets wound into a roll to be cut are stacked and passed through a guide roll mechanism, and the edges of the stacked long sheets are sent out from the guide roll mechanism. A plurality of long sheets cut into a predetermined length are obtained by catching the sheet with a moving catcher and pulling it out to a predetermined length, and cutting the pulled-out long sheet-like material in the width direction at the exit section of the guide roll mechanism. A method for cutting a long sheet material has been developed that allows the sheet material to be obtained in a laminated state.

However, when such a method is used to pull out a long sheet-like object onto, for example, a fixed table top surface, the long sheet-like object may stretch or
In addition, there were also inconveniences such as scratches on the bottom surface and misalignment of the stacked layers, making it difficult to draw out the drawer properly.

Furthermore, when the cutting operation is repeated, it is troublesome that the long sheet-like material after cutting must be removed one after another after each cycle of the operation. This invention was made in view of this situation, and when a long sheet-like material is pulled out by a movable catcher, the long sheet-like material is supported by a conveyor that runs in synchronization with the above-mentioned catcher, and after being cut, it is By making it possible to carry out the long sheet-like material cut by the conveyor at a predetermined time, the long sheet-like material can be drawn out smoothly and without any damage, and the cutting work can be carried out without any hassle. It is an object of the present invention to provide an automatic continuous cutting method for a long sheet-like material that can be repeatedly cut easily and efficiently. An embodiment of the present invention will be described below with reference to the drawings.

The structure of the apparatus for carrying out the cutting method according to the present invention will be explained as follows. That is, a guide roll mechanism 3 consisting of a pair of rolls 2, 2 is provided at one end edge of the main body of the apparatus. A plurality of long sheet-like materials 4 to be cut, each wound into a roll shape, are inserted between the rolls 2, 2 of the guide roll mechanism 3 in a stacked state.
These long sheet-like materials 4 are each wound around a winding shaft 5 disposed in front of the main body of the apparatus so as to be able to be fed out, and are stacked in a stacked state by being passed through a guide roll mechanism 3 before being rolled in a predetermined direction. It can be pulled out in the direction (direction of arrow D). A clamping mechanism 6 is provided on the upper surface of the main body of the apparatus, located at the rear near the guide roll mechanism 3. This clamping mechanism 6 is for detachably clamping and holding the edge portions of the plurality of long sheets in a laminated state that have come out of the guide roll mechanism 3 so that they can be brought into close contact with each other. The clamping mechanism 6 includes the guide. A pair of clamping plates 7a and 7b arranged vertically along the width direction of the roll mechanism 3
These clamping plates 7a, 7b have a clamping plate opening/closing mechanism, that is, cylinders 8a, 8b, so that their rear end edges can be opened and closed about axes 9a, 9b at their front edges. Rotates in directions A and B. A plurality of cylinders 11 are arranged at intervals in the length direction of the mounting plate 10, which is located above the upper holding plate 7a and has an L-shaped cross section.
The rod 12 has a long hole 12a in the upper clamping plate 7a.
These extending ends are fixed to a pressure bonding plate 13 located between the upper and lower clamping plates 7a and 7b. And the upper and lower holding plates 7a,
A plurality of long sheet-like materials 4 in a stacked state are inserted between 7b, and these sheet-like materials 4 are brought into close contact with each other by the clamping action of the aforementioned clamping plates 7a and 7b. Further, a conveyor 26 is provided extending in the direction in which the holding mechanism 6 delivers the long sheet-like object. This conveyor 26 is of a belt type that is wider than the long sheet material 4, and its upper surface, that is, the long sheet material supporting surface, is set at the long sheet material delivery height of the holding mechanism 6. It was installed accordingly. In addition, the above-mentioned clamping mechanism is used to straddle the conveyor 26 and hold the movable catcher stand 14).
It is arranged so that it can move forward and backward in six directions. The movable catch platform 14 has a gate shape with pinion-shaped wheels 15 on both sides thereof, and these wheels 15 are arranged on rack-shaped guide rails 16, 1 parallel to both sides of the conveyor 26.
It is engaged with the upper surface teeth of No. 6. Further, on the front side of the movable catch stand 14, there is a catcher 17 which can catch the edge of the drawn-out end of the laminated long sheet material 4 which is held under pressure by the clamping mechanism 6. (the position illustrated in FIG. 6) and the catch operation/disabled position (the position illustrated in FIG. 7). That is, the catcher 17 includes a catcher main body 19 having a U-shaped cross section, which is attached to the front surface of the movable catcher base 14 via a pair of left and right upper and lower cylinders 18a, 18a, 18b, and 18b.
A plurality of cylinders 10 are attached to the upper surface of the catcher body 19 in parallel on the left and right, with each rod 21 penetratingly hanging from the upper wall plate 19a of the catcher body 19.
It consists of... The base end portions of the cylinders 18a and 18b are pivoted 27a and 28a, respectively, to the front surface of the movable catcher base 14 so as to be vertically movable, and the tip portions thereof are pivotally mounted to the rear surface of the catcher body 19 so as to be vertically movable. are connected to the cylinders 27a, 28b, respectively, and the cylinders 18a, 1
When the cylinder 8b is extended, the catcher body 19 and the catcher 17 are brought to the position where the catch can be operated, and when the cylinders 18a and 18b are contracted from this state, the catcher 17 is moved rearward and upward and the catcher 17 is moved backward and upward. It is adapted to be brought into an inoperable position. When the catcher 17 is brought to the catching position, the lower surface of the catcher main body 19 is positioned slightly higher than the upper surface of the conveyor 26, and the movable catch platform 14 is moved to the catch position (the most advanced position). 4), the rear edge sides of the clamping plates 7a, 7b of the clamping mechanism 6 are fitted between the upper and lower wall plates 19a, 19b of the catcher body 19. In this fitted state, each cylinder 20
The rod 21 is extended and the clamping plates 7a, 7b are
When the long sheet material 4 is inserted into the notches 22, 22 formed at the rear end edge, the end edge of the long sheet material 4 is pressed against the lower wall plate 19a of the catcher body 19 by each rod 21, and the long sheet material 4 is The end edge of the object 4 is caught by the catcher 17. In addition, when the catcher 17 is brought to the non-catching position, the lower surface of the catcher main body 19 is positioned higher than the upper surface of the laminated long sheet material 4 supported on the conveyor 26, The movable catcher stand 14 moves forward without the catcher body 19 interfering with the long sheet-like object 4 on the conveyor 26. Note that when the catcher 17 is moved from the catchable position to the catchable position, the amount of retreat is such that the lower wall of the catcher body 19 is moved only by the retreat of the catcher 17 without moving the movable catcher base 14. The edge portion of the elongated sheet-like material 4 supported on the plate 19b is set so as to be released from support (see FIGS. 6 and 7). Reference numeral 23 denotes a cutter mechanism, which is disposed so as to be movable in the directions of arrows E and F along the rear edge of the clamping mechanism 6. The long sheet-like material 4 is cut in its width direction.

Next, the cutting method according to the present invention will be explained together with the operation of the device.

First, the ends of the plurality of elongated sheets 4 wound around the winding shaft 5 are arranged in a stacked state, and the rolls 2 of the guide roll mechanism 3 are passed through each other, and then the holding mechanism 6 The lower holding plate 7b and the pressure bonding plate 13 are inserted through each other, and the edge portion thereof is held between the rear edge portions of the holding plates 7a and 7b. (The operations up to this point are performed manually.) After doing this, the pressure bonding plate 13 of the clamping mechanism 6 is lowered by the action of the cylinder 11 to securely fix the long sheet-like object 4. do. After doing this, the movable catcher truck 14 is advanced to the catch position, the catcher 17 is brought to the catch actionable position, and the clamping mechanism 6 is placed between the upper and lower wall plates 19a and 19b of the catcher main body 19. The rear end edges of the holding plates 7a and 7b are inserted.
(The state shown by the solid line in FIG. 4) Thereafter, by operating the cylinder 20 of the catcher 17 and lowering the extending end of the rod 21, the rod 21 is able to hold a plurality of elongated sheets. The extending end of the shaped member 4 is pressed onto the upper surface of the lower wall plate 19b of the catcher main body 19. That is, the catcher 17 catches the end edge of the long sheet-like material 4. After doing this, the cylinder 11 of the clamping mechanism 6 is activated to raise the crimp plate 13, and the crimp plate 13 applies clamping pressure to the long sheet material 4, and the clamping plate opening/closing mechanism 8a, 8b by operating the holding plates 7a, 7b.
Open the non-pinching state. After this, the mobile catcher platform 1
4 is moved backward (in the direction of arrow D), each elongated sheet material 4 is fed out in a stacked state because the extending end portion is held by the catcher 17 (see the two points in FIG. 4). state shown by the dashed line). At this time, the conveyor 26 is moved in the same direction at the same speed as the movable catch table 14 to support the elongated sheet material 4 to be pulled out.
In this way, once the long sheet material 4 has been fed out for a certain length, the movable catcher stand 14 and the conveyor 26 are stopped at the same time, and then the clamping plate opening/closing mechanism 8a
, 8b are operated to close the clamping plates 7a and 7b in a clamping state, and the pressure bonding plate 13 is lowered by the action of the cylinder 11 to further bring the elongated sheet material 4 into close contact with each other.
After doing this, if the cutter mechanism 23 is activated and moved in the direction of arrow E, the entire stacked long sheet material 4 will be cut along the cutting line 1 in FIG. 3. Cut in the direction.

After doing this, the cutter mechanism 23 is moved seven times in the direction of arrow F and returned to its original position. After doing this, the rod 21 of the catcher 17 is raised to release the long sheet material 4 (Fig. 6), and the catcher 17 is lifted by the action of the cylinders 18a and 18b. The elongated sheet-like object 4 is removed from the catcher 17 by being moved backward and raised, that is, brought to a position where the catch cannot be operated (solid line in FIG. 7).

Note that when the long sheet material 4 is removed, the catcher 1
7 will be positioned above the elongated sheet-like material 4.
Thereafter, the conveyor 26 is operated again in the same direction as the direction in which the long sheet-like material 4 is pulled out, and the cut long sheet-like material 4 is carried out toward the other end of the apparatus in a stacked state, and is transferred to the moving catcher. The table 14 is advanced again to the catch position (see the chain line in FIG. 7) and the catcher 17 is returned to the catch position, thereby completing the saw cycle operation.

That is, the conveyor 26 carries out the elongated sheet material 4 while it is being moved forward from the most retracted position to the catch position. However, if we repeat this periodic operation,
It is possible to successively obtain a plurality of long sheet-like materials 4 cut to a predetermined length in one cycle of operation. Note that the long sheet-like material carried out by the conveyor 26 is
It is transferred to another conveyor (not shown) and transported to a desired location.

As described above, according to the present invention, it is of course possible to cut a plurality of long sheets at once in each cycle of operation as in the conventional method, and furthermore, the long sheets can be cut by a movable catcher. When pulling out a long sheet-like object, the long sheet-like object is supported by a conveyor that runs in synchronization with the above-mentioned movable catch table, so that the long sheet-like object can be pulled out smoothly without being stretched or scratched. Furthermore, since the long sheet-like material after cutting is carried out sequentially to the outside of the device using the above-mentioned conveyor, the above-mentioned cutting operation can be carried out continuously. It is.

Furthermore, since the time during which the movable catch platform is moved forward is used to carry out the work of transporting long sheets by the conveyor, the time is more efficient than when each work is done separately. Therefore, an excellent effect can be obtained in that the efficiency of the entire cutting operation can be greatly improved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and Fig. 1 is a side view, Fig. 2 is a plan view, Fig. 3 is a perspective view, Fig. 4 is an enlarged side view, and Fig. 5 is a partially cutaway view. A front view, FIG. 6 is a partially cutaway side view showing a state in which the long sheet-like object is released from the catch by the catcher, and FIG. 7 is a partially cut-away side view showing the state in which the long sheet-like object is released from the catcher. It is a diagram. 3... Guide roll mechanism, 4... Long sheet-like object, 6... Clamping mechanism, 14...
- Mobile catcher stand, 17... Catcher, 23
...Cutter mechanism, 26...Conveyor.

Claims (1)

[Claims] 1 A plurality of long sheet-like objects, each wound into a roll, are made to pass through a guide roller mechanism so that they can be drawn out in a stacked state in a predetermined direction, and the long sheets drawn out from the guide roller mechanism The end edge of the long sheet-like object may be held under clamping pressure by a clamping mechanism, and the end edge of the long sheet-like object may be held by a catch provided on a movable catcher base that can move forward and backward in the direction of pulling out the long sheet-like object. After catching it, it is released from the clamping pressure holding action by the clamping mechanism.
Thereafter, the movable catch table is moved in the pull-out direction, and in synchronization with this, the conveyor is operated at the same speed and in the same direction as the movable catch table, so that the long sheet-like objects are successively supported on the conveyor. When the length of the long sheet material reached a predetermined length due to the movement of the movable catch table, the movement of the movable catch table and the conveyor are simultaneously stopped, and the clamping pressure holding action of the clamping mechanism is applied. Then, the portion of the long sheet material held by the clamping mechanism is cut in the width direction using the cutter mechanism, and the long sheet material is removed from the catcher. After that, the movable catcher base is moved. In order to return the catcher to a position where it can catch the cut end portion of the long sheet material held by the clamping mechanism, the conveyor 1. An automatic continuous cutting method for a long sheet material, characterized in that the laminated long sheet material cut to a predetermined length is carried out by a conveyor by moving the material in a drawer direction.