JPH081824Y2 - Sheet material cutting device - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] This invention is made of synthetic resin film, paper,
The present invention relates to a cutting device that cuts a sheet-like material such as aluminum foil in the width direction while traveling is stopped.

Generally, when a wide sheet material such as a synthetic resin film, paper or aluminum foil is used as it is or cut into a plurality of narrow sheet materials by a slitter and wound on a core mounted on a winding shaft by a predetermined amount. In the case of stopping the traveling of the sheet-like material and cutting the sheet-like material continuous with the sheet roll, it is described in, for example, JP-A-59-217558 or JP-A-63-126358. Such cutting devices are used.

In the former case of the cutting device, a sheet receiving beam is installed so as to support the entire sheet in the width direction, and the blade motor is projected from the contact surface of the sheet receiving beam. Alternatively, it is moved by a driving device such as a hydraulic motor, a chain car, and a moving mechanism such as a chain. Since the contact portion of the sheet receiving beam is horizontal, even if the sheet receiving member is supported by the sheet receiving beam in a state where a predetermined tension is applied to the sheet receiving member, the sheet receiving member actually receives the sheet receiving beam. Since only the two edges are in contact with the abutting part, the sheet-shaped material is pressed by the cutting resistance when the blade moves in the width direction of the sheet-shaped material and cuts the sheet-shaped material, causing wrinkling. There was a problem that occurs.

Further, in the latter case, since a member for abutting the sheet-like material is not installed, the sheet-like material moves up and down to make the cutting position unstable, so that the sheet-like material cannot be cut straight and the cutting is performed. There is a problem in that the sheet-like material is pressed by the resistance to cause lateral shift and wrinkles are generated.

The above-mentioned problem is that the thickness is thin, and
This was particularly remarkable in the case of a sheet-shaped material having low rigidity.

Further, the blade is a pulse motor, or
Since it is moved by a driving device such as a hydraulic motor, a chain wheel, and a moving mechanism such as a chain, there is a problem that the structure of the moving mechanism of the blade becomes complicated and the entire cutting device becomes large.

[0007]

The first problem is that the sheet-shaped material is pressed by the cutting resistance generated when the sheet-shaped material is cut to cause lateral shift and wrinkles are generated, and the sheet-shaped material is cut straight. This is a point that cannot be done.

The second problem is that the moving mechanism of the blade is complicated and the entire cutting device becomes large.

[0009]

Means for Solving the Problems The sheet of the first division is sheet cutting apparatus of the present invention to solve the problem support member
Secure the sheet movement prevention member to the abutting part of the sheet.
It has a different structure.

In order to solve the second problem, in the sheet-shaped object cutting device of the present invention, the blade has a cross-section of a convex curved surface or
It is configured to be moved by a rodless cylinder installed in the cavity of the polygonal support portion .

[0011] movement preventing member of the sheet is larger member of the frictional resistance, members having adhesiveness, by the adsorption member
It is preferable to form it. Further, members having adhesiveness is preferably formed by <br/> rubber sheet.

[0012]

1 is a schematic front view showing one embodiment of a slitter equipped with a sheet-like material cutting device of the present invention.
Is a view taken along the line ZZ in FIG. 1, and FIG.
FIG. 1 is an enlarged view as viewed from the direction of the arrow Y, in which 1 is a machine frame, which is installed at a predetermined interval in the width direction of the sheet-shaped material. Reference numeral 2 is a guide roller for guiding the sheet-like material, which is rotatably supported by a bearing and is attached to the machine frame 1 or the auxiliary frame body so as to move in the vertical direction by a fluid cylinder or the like. Reference numeral 3 denotes a surface pressure imparting roller, which is rotatably supported by a bearing and is attached to the machine frame 1 so as to be horizontally moved by a fluid cylinder or the like. Reference numeral 4 is a winding shaft for tightening a plurality of cores, which is rotatably attached to the machine frame 1 by a bearing. The winding shaft 4 is rotated at a predetermined speed by a drive device (not shown). Reference numeral 5 is a rod for contacting the sheet-like material with the cutting device 6 with a predetermined tension, and is rotatably attached to the moving unit 8 by a bearing.

The details of the above-mentioned cutting device 6 are as shown in FIGS. 2 and 3. In the drawings, reference numeral 61 is a support member, which is horizontal to the bracket 7 on the moving unit 8 in the width direction of the sheet-like material. It is installed in the state. The supporting member 61 has a tunnel-shaped cavity when viewed in the width direction of the sheet-shaped material, and the contact portion 61a of the sheet-shaped material has an arc shape. Supports the entire width direction. In addition, a groove 61b for moving the blade is formed in the substantially central portion thereof. As the supporting member 61, the abutting portion of the sheet-like material as in the embodiment and the supporting portion for attachment are manufactured by different members, and the supporting member 61 is replaced by a structure in which these are integrally assembled.
It is also possible to use an integral body made of aluminum alloy, synthetic resin or the like. Reference numeral 62 denotes a rubber sheet, which is attached to the convex curved contact portion 61a of the support member 61 with an adhesive,
Alternatively, they are fixed with double-sided adhesive tape. The rubber sheet 62 is used to hold the sheet-like material in an adhered state and to have an adhesive force that allows an operator to peel the sheet-like material without causing damage or deformation. Reference numeral 63 is a rodless cylinder, which is the contact portion 6 of the support member 61.
It is mounted so as to be located in the cavity below 1a.
Reference numeral 64 denotes a holder, which is integrally attached to the slider 63a of the rodless cylinder 63. Reference numeral 65 denotes a blade, and the blade portion of the holder 64 is the contact portion 61 of the support member 61.
It is mounted vertically so that it protrudes from a. 66
Is a cap, which is attached to the upper end of the blade 65.
67 is a cover, which is integrally attached to the support member 61 at a position where the blade 65 stands by.

A compressed air supply pipe (not shown) having a pressure control valve, an electromagnetic switching valve, etc. is connected to the rodless cylinder 63, and compressed air is supplied on the basis of a cutting command signal for the sheet. It is like this.

When compressed air is supplied to the rodless cylinder 63, the blade 65 moves in the width direction of the sheet material together with the slider 63a at the standby position. Then, when the slider 63a moves to a predetermined position, the electromagnetic switching valve operates and the compressed air supply path is switched to move the slider 63a.
The blade 65 returns to the standby position inside the cover 67 together with a.

Instead of the above-mentioned adhesive rubber sheet 62, a rubber sheet having a large friction coefficient, or an adhesive synthetic resin sheet is fixed by an adhesive material, a double-sided adhesive tape or the like, or it has adhesiveness. It is also possible to apply a synthetic resin liquid. Further, the contact portion 6 of the sheet-like object
It is also possible to form a sheet-like object by suction by forming it by a negative pressure duct or the like in which 1a is a perforated plate.

Further, although the moving unit 8 is configured to move toward and away from the winding shaft 4, the blade 65 of the cutting device 6 is moved by an electric motor, a chain, and a belt in addition to moving the winding shaft 4. In addition, the support portion 61a of the support member 61
The cross-sectional shape of can be polygonal or triangular.

In the slitter described above, a preset amount of the sheet-like material 20 is wound around the core mounted on the winding shaft 4, and the guide roller 2, the surface pressure imparting roller 3, the winding shaft 4, etc. are rotated. When the traveling of the sheet-shaped material 20 is stopped,
As shown in FIG. 1, the guide roller 32, the surface pressure applying roller 3, the rod 5, and the cutting device 6 installed on the moving unit 8 are integrally moved backward from the winding shaft 4 and moved to the doffing operation position. At the same time, the rod 5 rotates to bring the sheet-like material 20 into contact with the cutting device 6 with a predetermined tension so that the sheet-like material 20
Is held in a state of being adhered to the rubber sheet 62. Next, the electromagnetic switching valve of the compressed air supply pipe (not shown) is operated to supply compressed air to the rodless cylinder 63, and the blade 65 moves in the width direction of the sheet-like material 20 together with the slider 63a to form a convex curved surface. The sheet-like material 20 held on the rubber sheet 62 is cut. Then, when the slider 63a moves to a predetermined position, the electromagnetic switching valve operates to switch the compressed air supply path, and the blade 65 together with the slider 63a returns to the standby position in the cover 67. The ends of the sheet 20 cut by the operation are rubber sheets 62a and 62b, respectively.
Is held by. Therefore, the end portion of the sheet-shaped material 20 on the winding shaft 4 side is peeled off from the rubber sheet 62a and fixed to the outer peripheral surface of the sheet winding roll with an adhesive tape or the like. Then, when the sheet winding roll is doffed together with the winding shaft 4 and replaced with a new winding shaft 4 having an empty core, the rubber sheet 6
The end portion of the sheet-like material 20 held by 2b is peeled off and fixed to a core mounted on a new winding shaft 4 with an adhesive tape or the like. When the cutting operation of the sheet-like material 20 and the doffing operation of the sheet winding roll described above are completed, the winding shaft 4 and the like are started to cause the sheet-like material 20 to travel and restart the winding operation.

The sheet cutting device 6 according to the present invention has the sheet 20 of the supporting member 61 seen in the width direction of the sheet 20.
Since the cross-sectional shape of the contact portion 61a of is a convex curved surface,
The contact area of the sheet-like material 20 with the support member 61 is increased, and the lateral displacement of the sheet-like material 20 that moves in the width direction due to the cutting resistance can be prevented, and the sheet-like material 20 can be reliably cut without wrinkles.

Further, since a member having a large frictional resistance or an adhesive member is fixed to the abutting portion 61a of the supporting member 61, or the abutting portion 61a of the sheet-like object is formed by a suction member, The sheet-like material can be reliably held and can be cut straight without wrinkling.

Further, since the blade 65 is moved by the rodless cylinder 63, it can be housed in the support member 61, the structure of the moving mechanism is simplified, and the cutting device 6 is compact as a whole. can do.

[0022]

The sheet-like material cutting device of the present invention is claimed
As in item 1, the sheet-like member is attached to the contact portion of the sheet-like member of the supporting member
Since the object movement prevention member is fixed,
The contact pressure on the sheet-shaped support member increases,
The cutting resistance can prevent lateral displacement of the sheet-shaped material moving in the width direction, and can reliably cut without causing wrinkles.

Further, as described in claims 2 to 5 ,
A member for preventing movement of a sheet-like object is a member having a large friction resistance,
Formed by sticky member , adsorption member or
If the member having adhesiveness is formed of a rubber sheet, the sheet-like material can be reliably supported and can be cut straight without wrinkling.

Further, as in claim 6, the blade has a sectional shape.
It is installed in the cavity of the supporting part whose shape is convex or curved.
So that it can be moved by a rodless cylinder
Then, the structure of the moving mechanism is simplified, and the entire cutting device can be made compact.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of a slitter equipped with a sheet cutting device of the present invention.

FIG. 2 is a view taken in the direction of arrows ZZ in FIG.

FIG. 3 is an enlarged view taken along the line YY in FIG.

[Explanation of symbols]

 1 Machine Frame 2 Guide Roller 3 Roller for Applying Surface Pressure 4 Rolling Shaft 5 Rod 6 Cutting Device 61 Supporting Member 62 Rubber Sheet 63 Rodless Cylinder 64 Holder 65 Blade 66 Cap 67 Cover

Claims (6)

[Scope of utility model registration request] 1. A support member is installed in a machine frame so as to support the entire width of the sheet-like object, and the blade is moved in a state of protruding from the abutting portion of the sheet-like object of the supporting member. In a device which is provided, abuts against a support member in a state where the sheet-like object is stopped, and moves the blade in the width direction of the sheet-like object to cut, a contacting part of the sheet-like object of the supporting member
A sheet-shaped material cutting device, characterized in that a sheet- shaped material movement preventing member is fixed to the sheet-shaped material. 2. A member for preventing movement of a sheet-like object is provided with friction resistance.
The sheet material cutting device according to claim 1, wherein the sheet material cutting device is formed by a member having a large diameter . 3. A member for preventing movement of a sheet-like material is made to have adhesiveness.
The sheet material cutting device according to claim 1, wherein the sheet material cutting device is formed by a member having the same . 4. The sheet-like material cutting device according to claim 1, wherein the sheet-like material movement preventing member is formed by a suction member. 5. The sheet material cutting device according to claim 3, wherein the adhesive member is formed of a rubber sheet. 6. The blade has a convex curved surface or a polygonal cross section.
The sheet-like material cutting device according to any one of claims 1 to 5, wherein the sheet-like material cutting device is configured to be moved by a rodless cylinder installed in a hollow portion of the support member .