JP2881300B1 - Sheet cutting device - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To automatically cut a sheet to be put into a crusher and to put it into the crusher by a machine in regenerating a defective sheet roll of a synthetic resin sheet. SOLUTION: A feeding means 6 for feeding a sheet 1 pulled out from a roll 2 to a processing means 4, and a plurality of narrow sheets 3 by cutting the pulled out sheet 1 substantially in parallel with a longitudinal direction.
And a collecting means 9 for collecting and stacking the plurality of narrow sheets 3 on the downstream side of the cutting means 7 and sending them to the processing means 4 as a set 8 having a predetermined width. A tapered gutter-like guide plate 18 for receiving the plurality of cut narrow sheets 3 and guiding the narrow sheets 3 to the processing means 4, and a narrow sheet 9 at the base of the guide plate 18. 3, the narrow sheets 3 are supported in such a manner that the narrow sheets 3 are slackly supported in a mountain shape with one side inclined high, and the slack changes the flow angle of the narrow sheets 3 to form the set 8 And the inclined support member 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet cutting apparatus for cutting a wound sheet roll into a predetermined width in order to apply the same to a crusher.

[0002]

2. Description of the Related Art In a process of forming and winding a synthetic resin sheet into a film, or in a process of cutting and winding the wound sheet roll into a plurality of rolls, if a roll having poor thickness or poor winding occurs, The sheet is further cut and pulverized, and the pulverized sheet is reprocessed, whereby the defective sheet can be regenerated as a raw material. The cutting of the defective sheet roll is performed so that the sheet enters the inlet of the crusher.Currently, the cutting of the wide sheet roll is manually performed using a grinder, a chain saw, a knife, or the like. I have.

[0003]

However, in the above-mentioned conventional cutting of a defective roll, since the cylindrical roll is cut in parallel with its axis, the above-mentioned grinder or chain saw slips from the cylindrical portion of the roll. There is a dangerous work. In addition, when a device such as a grinder or a chain saw is used, cutting powder is generated, which significantly deteriorates the working environment.

According to the present invention, the above-mentioned actual situation is dealt with, and the sheet of the roll is cut in the unwinding direction, and the cut sheet is polymerized by the cutting and automatically fed into a pulverizer for processing. It is intended to do so.

[0005]

That is, a sheet cutting apparatus according to the present invention, which meets the above object, cuts a wide sheet wound in a roll shape into a plurality of narrow sheets while pulling out the sheet. A sheet cutting device that superimposes width sheets on the leading end side and supplies the processed sheets to processing means such as a crusher,
Feeding means for feeding the sheet drawn from the roll to the processing means, and cutting means for cutting the drawn sheet substantially parallel to the longitudinal direction to form a plurality of narrow sheets,
A collecting means for collecting and stacking the plurality of narrow sheets on the downstream side of the cutting means and sending the collected narrow sheets to the processing means as a set having a predetermined width, wherein the collecting means receives the plurality of cut narrow sheets. A tapered gutter-shaped guide plate for guiding these narrow sheets to the processing means, and a mountain formed at the base of the guide plate below the narrow sheets and having one side inclined upwardly. The narrow width sheet is formed by a slanted support member that forms a set by changing the flow angle of the narrow sheet by the slack.

In the sheet cutting apparatus according to the present invention, air is supplied to the base of the guide plate between the upper surface of the guide plate and the narrow sheet to feed each narrow sheet to the processing means. It is also possible to provide auxiliary air supply means.

[0007]

In the sheet cutting apparatus of the present invention, the sheet is cut in the longitudinal direction to form a plurality of narrow sheets, and after the narrow sheets are cut, they are bundled and supplied to the inlet of the pulverizer. With this, it is possible to automate the regeneration process up to the crushing of the defective sheet roll by a machine and to perform the process safely and reliably.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment of the present invention will be described.

FIG. 1 is a side view showing a defective sheet roll cutting apparatus according to an embodiment of the present invention, FIG. 2 is a plan view showing a main part of the apparatus, FIG. 3 is a cross-sectional view showing a sheet roll supporting portion of the apparatus.
FIG. 4 is an enlarged view of a main part of FIG.

The sheet cutting apparatus according to the embodiment of the present invention includes:
While pulling out, for example, a wide flexible synthetic resin sheet 1 wound in a roll form from a roll 2, a plurality of narrow sheets 3
And the divided narrow sheets 3 are superimposed at the leading end and automatically supplied to the crusher 4.

As shown in FIG. 3, a sheet roll supporting portion 5 for rotatably supporting the sheet roll 2 is shown in FIG.
And the sheet 1 pulled out from the roll 2 of the support portion 5
Feeding means 6 for feeding the sheet 1 to the pulverizer 4, cutting means 7 for cutting the drawn sheet 1 substantially in parallel with the longitudinal direction (drawing direction), and forming five narrow sheets 3 in this example. At the downstream side of the cutting means 7, the plurality of narrow sheets 3 are collected in the width direction and stacked, and are sent to the crusher 4 as a set 8 of widths which enter the inlet 4 a of the crusher 4.
And

As shown in FIG. 3, the sheet roll supporting portion 5 has a chuck portion 10 for detachably holding the roll 2.
And a chuck brake mechanism 11 for controlling the rotation of the roll 2 supported above. As shown in FIG. 1, the feed means 6 includes two feed rollers 13 which are rotated by a motor 12 in synchronization with each other, a pinch roller 14 which vertically pairs with the feed rollers 13 and sandwiches the sheet 1. And a feed pulley 15.

On the other hand, the cutting means 7 includes four lower shear blades 16 which are rotated by the motor 12 and four upper shear blades 17 which are vertically paired with the lower shear blades 16. The feed roller 13 and the feed pulley 15 on the downstream side of the feed means 6 feed the narrow sheet 3 cut by the cutting means 7 therebetween.

The collecting means 9 receives a plurality of narrow sheets 3 divided by the cutting means 7 as shown in FIGS. A tapered gutter-shaped guide plate 18 for guiding to the input port 4a of the first and second narrow-width sheets 3 except for the narrow-width sheet 3 'at the upstream portion of the guide plate 18 is formed. And a slanting support member 19 for supporting the inner side in the width direction of the narrow width sheet 3 at a required height so as to bend in a mountain shape. The slanting support member 19 partially tilts the narrow width sheet 3. The lifting angle changes the flow angle of the narrow sheet 3 on the guide plate 18 toward the inside.

In this example, the inclined support member 19 has a triangular pyramid shape, and forms a ridge-like portion 19a which is inclined outward with the upper line segment, and slides while straddling the ridge portion 19a. The flow direction is changed toward the inside by a required angle so that the inside of the narrow sheet 3 is larger than the outside by feeding.

Accordingly, the ridge 1 of the inclined support member 19
9a, the inclination angle of the outer inclined support member 19 is larger than that of the inner inclined support member 19, and furthermore,
By adjusting the inclination angle, the flow angle of the narrow sheet 3 can be freely set. In addition to the above-mentioned inverted triangular pyramid, the inclined support member 19 is rotatably attached to the guide plate 18. An embedded laterally conical roller or the like may also be employed.

Further, the guide plate 18 is formed in a U-shaped cross section, and guides the narrow sheet 3 from the cutting means 7 to the crusher 4 so that each narrow sheet 3 flows smoothly. For this purpose, the crusher 4 is installed obliquely so as to be lower, and air is flowed between the upper surface of the plate 18 and the narrow sheet 3 through an air pipe 20 shown in FIG.

That is, the wide sheet 1 is
The sheet is divided into a plurality of narrow sheets 3 cut by the cutting means 7 while being pulled out from the sheet feeding means 6 and going straight after this division.
The guide plate 18 and the inclined support member 19 of the collecting means 9
As described above, the length angle of the outer narrow sheet 3 is changed to the inner side as described above, so that the outer narrow sheet 3 overlaps the central narrow sheet 3 'near the input port 4a of the crusher 4 as shown in the figure. The set of sheets 3 overlapping and having a width that can be put into the input port 4a of the crusher 4 is automatically supplied from the input port 4a to the crusher 4 and crushed into chips.

As described above, in the sheet cutting apparatus according to the embodiment of the present invention, the wide sheet 1 is cut in the longitudinal direction to form a plurality of narrow sheets 3, and the narrow sheets 3 are collected after cutting. Thus, the width can be supplied to the input port 4a of the crusher 4 so that the regeneration process up to the crushing of the defective sheet roll 3 can be automated and mechanically performed by a machine.

[0020]

As described above, the sheet cutting apparatus according to the present invention comprises a feeding means for feeding a sheet drawn from a roll to a crusher and the like, and a sheet cutting apparatus for cutting the drawn sheet substantially parallel to the longitudinal direction. Cutting means for forming a plurality of narrow sheets, and means for collecting and stacking the plurality of narrow sheets on the downstream side of the cutting means and sending them to the crusher or the like as a set having a predetermined width; Receiving the plurality of cut narrow sheets, a tapered gutter-like guide plate for guiding these narrow sheets to the crusher, etc., formed at the base of the guide plate below the narrow sheet, These narrow sheets are slackly supported in the form of a mountain with one side inclined high, and the slack supports are used to change the flow angle of the narrow sheets to form the above-mentioned slanted support members. Ah Along with forming a plurality of narrow sheets by cutting a wide sheet in the longitudinal direction, the guide plate and the inclined support member of the collecting means allow the narrow sheets to be collected and fed into a crusher or the like. None, thereby achieving a remarkable effect of automating the processing up to the crushing of the defective sheet roll by a machine, safely and reliably cutting the sheet roll, and improving the efficiency of the reproduction of the defective sheet. Further, by forming the air supply means at the base of the guide plate, it is possible to smoothly feed each narrow sheet to a crusher or the like.

[Brief description of the drawings]

FIG. 1 is a side view showing a sheet cutting device according to an embodiment of the present invention.

FIG. 2 is a plan view showing a main part of the device.

FIG. 3 is a cross-sectional view illustrating a supporting portion of a sheet roll of the apparatus.

FIG. 4 is an enlarged view of a main part of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wide sheet 2 Sheet roll 3, 3 'Narrow sheet 4 Crusher 4a Input port 5 Sheet roll support part 6 Sheet feeding means 7 Cutting means 8 Assembly 9 Assembly means 10 Chuck unit 11 Chuck brake mechanism 12 Motor 13 Feed roller 14 Pinch Roller 15 Feed pulley 16 Lower shear blade (knife blade) 17 Upper shear blade (knife blade) 18 Guide plate 19 Inclined support member 19a Ridge line 20 Air piping (air supply means)

Continuation of the front page (56) References JP-A-7-88796 (JP, A) JP-A 1-110792 (JP, U) JP-A 64-34194 (JP, U) JP-A 56-158450 (JP , U) Shokai Sho 64-46192 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B26D 1/24 B65H 23/32

Claims (2)

(57) [Claims] 1. A sheet which is cut into a plurality of narrow sheets while pulling out a wide sheet wound in a roll shape, and the cut narrow sheets are overlapped on the leading end side and supplied to processing means such as a crusher. A cutting device, a feeding means for feeding the sheet drawn from the roll to the processing means, a cutting means for cutting the drawn sheet substantially parallel to the longitudinal direction to form a plurality of narrow sheets, A collecting means for collecting and stacking the plurality of narrow sheets on the downstream side of the cutting means and sending the collected narrow sheets to the processing means as a set having a predetermined width; receiving the plurality of cut narrow sheets by the collecting means; A tapered gutter-shaped guide plate for guiding these narrow sheets to the processing means, and a mountain-like shape formed at the base of the guide plate below the narrow sheets and having one side portion inclined higher. Nitta A sheet cutting device formed by a slanted support member that forms a set by changing the flow angle of the narrow sheet with the slack and supporting the slack. 2. An air supply means for supplying air between the upper surface of the guide plate and the narrow sheet and assisting the feeding of each narrow sheet to the processing means is provided at a base of the guide plate. The sheet cutting device according to claim 1. [0001]