JP6520443B2 - Outline cutting device - Google Patents

Description

  The present invention relates to an external shape cutting device for supplying a continuous film-like or sheet-like material to a cutting roll having a cutting blade on its outer peripheral surface.

Conventionally, for example, a method using a Thomson blade or a punch die is known as a means for cutting a continuous film-like object such as a pouch into a product having a predetermined outer shape.
However, in the method using the Thomson blade, if unevenness occurs in the contact of the Thomson blade with respect to the anvil, uneven cutting occurs, and in order to accurately adjust the contact when changing the cutting blade due to a change of product, wear, etc. It takes a long time, hindering the improvement of work efficiency.
Further, in the punch die system, the mold must be set to a clearance suitable for cutting over the entire circumference of a complicated shape, and the mold itself becomes very expensive.
Furthermore, as in the case of the Thomson blade, when changing the mold due to a change in the product, wear of the mold, etc., it takes a long time to accurately adjust the clearance, which hinders improvement of the working efficiency. There is.
Then, as means for solving these problems to some extent, using a cut roll having a cutting blade on the cylindrical outer peripheral surface, by supplying a continuous material to be cut to a continuously rotating cut roll, an appropriate outer shape can be obtained. Techniques for cutting into products of the type are known (see, for example, Patent Document 1).

JP, 2005-14211, A

When cutting the outer shape so as to pull out individual products such as pouches from a web-like film (printed original fabric) printed with a design using a cutting roll having a cutting blade on a known outer peripheral surface, cutting by cutting load Roll and anvil roll may be deformed.
In this case, a gap between the cutting blade on the outer peripheral surface of the cutting roll and the anvil roll causes wear or damage due to the cutting blade strongly hitting the anvil roll, which adversely affects the cutting performance and the life of the cutting blade.
In addition, when cutting using a material with an easy-to-stretch property as a printing stock, the cut portion can not be cut completely, and the product such as a pouch and the scrap (skeleton) are connected, and the product and scrap are Sometimes it can not be separated reliably.

  The present invention solves the above-mentioned problems, and the blade contact to a continuous film-like or sheet-like object is uniform and the cutting performance is high, and the cutting blade due to the change or wear of the product, etc. It is an object of the present invention to provide an external shape cutting device which can be easily adjusted at the time of replacement and can improve working efficiency.

  The external shape cutting apparatus according to the present invention comprises a cutting roll having a cutting blade on an outer peripheral surface, an anvil roll provided opposite to the cutting roll, and a feed unit for supplying a continuous object to be cut to the cutting roll. The cutting roll has a cylindrical bearer portion having the same diameter as the outer diameter of the cutting blade on both axial end sides, and the bearer portion abuts on the anvil roll , The problem is to be solved.

According to the external shape cutting device of the present invention, the cutting roll has the cylindrical bearer portion having the same diameter as the outer diameter of the cutting blade at both axial end sides, and the bearer portion abuts on the anvil roll The blade contact to the object to be cut is uniform and the cutting performance is high, and the adjustment at the time of changing the cutting blade due to the change of the product or the wear becomes unnecessary, and the working efficiency can be improved.
In addition, since the vibration at the time of cutting the object to be cut is small and the forming load is also reduced, the equipment can be miniaturized.
In addition, because the intermediate support roll is provided at a position facing the upper side of the axial intermediate gap portion of the cut roll and the lower side of the axial intermediate portion of the anvil roll, the cutting load is provided. It is possible to prevent the spread of the spacing due to the bending of the middle portion of the cutting roll and the anvil roll due to the above, and it is possible to further prevent the deterioration of the cutting performance.

According to the configuration of the second aspect, the pair of backup rolls are provided to sandwich the upper side of the bearer portion at both ends of the cut roll and the lower side of the both ends of the anvil roll. It is possible to prevent an increase in the distance between the cut roll and the anvil roll due to the above, and to prevent a reduction in cutting performance.
According to the configuration described in claim 3, A Nbiruroru is, the object to be cut which is cut by the cutting blade by having suction means for sucking the surface, by pulling adsorbed product to the anvil roll side, Product and scrap can be separated reliably.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic front view of the external shape cutting apparatus which concerns on one Embodiment of this invention. FIG. 2 is a perspective view of the external shape cutting device of FIG. 1; The partially expanded perspective-cut figure of FIG. Partially enlarged perspective cut view of the cut roll. Schematic explanatory drawing of an external shape cutting apparatus. Explanatory drawing in cutting of an outline cutting device. Explanatory drawing at the time of completion | finish of cutting of an external shape cutting apparatus. Explanatory drawing at the time of the to-be-cut object stop of an external shape cutting apparatus. Operation | movement explanatory drawing at the time of to-be-cut object pull-back of an external shape cutting apparatus. Operation | movement explanatory drawing at the time of the to-be-cut object resupply of an external shape cutting device. Explanatory drawing of the other form of a cut roll and an anvil roll.

As shown in FIGS. 1 to 3, the external shape cutting apparatus 100 according to an embodiment of the present invention has a cutting roll 110 having a cutting blade 111 on the outer peripheral surface and an anvil roll 120 provided opposite to the cutting roll 110. And a feed unit (not shown) for feeding a continuous film-like or sheet-like object F between the cutting roll 110 and the anvil roll 120.
In the cutting roll 110, as shown in FIG. 4, the cutting rotation area 112 for cutting the object F into a predetermined outer shape by the cutting blade 111 in the circumferential direction, and the cutting blade 111 at any position in the axial direction It has a non-cutting rotation area 113 which does not hit the cutting material F.
In addition, the cut roll 110 has a cylindrical bearer portion 114 having the same diameter as the outer diameter of the cutting blade 111 (including the case of a slightly smaller diameter) on both axial end sides.
Even if the cylindrical bearer portion 114 has a diameter slightly smaller than the outer diameter of the cutting blade 111, the bearer portion 114 can be brought into contact with the anvil roll 120, and exhibits the same effect as the case of the same diameter. .
Furthermore, the cutting blade 110 is provided with a cutting blade 111 so as to cut the outer shape of the product from the workpiece F in two rows in the axial direction, and the cutting blade 111 is present around the entire circumference in the axial center. Not have an intermediate gap 115.
In the present embodiment, the bearer units 114 are disposed on both ends in the axial direction of the cut roll 110, but it is preferable that the bearer portions 114 be suitably disposed at the center or the like of the roll depending on the length and diameter of the cut roll 110.

Then, the object F is cut by the cutting blade 111 and the anvil roll 120 in a state where the bearers 114 on both axial end sides of the cut roll 110 are in contact with the anvil roll 120.
With such a configuration, the blade contact to the workpiece F is uniform and the cutting performance is high, and the adjustment at the time of replacement of the cutting blade 111 due to a change in the product or wear is unnecessary, and the working efficiency is improved. Since the vibration at the time of cutting of the object to be cut F is small and the forming load is also reduced, the equipment can be miniaturized.
Also, in order to prevent floating and deformation of the cut roll 110 and deformation of the anvil roll 120, one pair of upper sides of the bearers 114 at both ends of the cut roll 110 and lower sides of both ends of the anvil roll 120 are sandwiched from above and below. Backup roll 130 is provided.
Furthermore, in order to prevent the bending of the cut roll 110 and the intermediate portion of the anvil roll, the upper side of the intermediate gap portion 115 provided in the axial middle portion of the cut roll 110 and the lower portion of the axial intermediate portion of the anvil roll 120 Intermediate support rolls 140 are provided at opposite positions of the upper and lower sides so as to sandwich the upper and lower sides.
In addition, the anvil roll 120 is equipped with the adsorption | suction means 121 which adsorb | sucks the product cut | disconnected by the cutting blade 111 of the cut roll 110, and cut off the external shape from the to-be-cut object F on the surface corresponding to the cutting place 111.

An operation of cutting the continuous film-like or sheet-like workpiece F into the product P having a predetermined outer shape by the outer shape cutting device 100 configured as described above will be described.
As shown in a simplified manner in FIG. 5, the continuous object F is supplied by the feed unit 102 between the cutting roll 110 and the anvil roll 120, and the cutting rotation area 112 of the cutting roll 110 faces the anvil roll 120. At the same time, the product P is cut by the cutting blade 111 of the cut roll 110, and the scrap K (skeleton) is recovered.
The control unit 101 causes the cutting blade 111 of the cutting roll 110 to reach the next cutting start point of the object F exactly when the non-cutting rotation area 113 of the cutting roll 110 faces the anvil roll 120. In addition, the rotational speed of the cut roll 110 and the drive speed and drive direction of the feed unit 102 are controlled.

A detection means 103 is provided upstream of the cutting roll 110, preferably near the upstream, for detecting the position by reading the printed pattern or mark on the surface of the object F, based on the detection signal of the detection means 103, The control unit 101 operates to cut the object F at the correct position.
In addition, although the anvil roll 120 rotates in synchronization with the cut roll 110 with a gear etc., rotation control may be separately carried out by the control unit 101.
Moreover, although the feed unit 102 is shown as two rollers which pinch the to-be-cut object F from the upper and lower sides in illustration, what kind of mechanism may be sufficient as it.
Furthermore, although the detection means 103 is assumed to be one that optically reads a printing pattern or mark in the figure, it may be anything that physically contacts or uses ultrasonic waves, infrared rays, electromagnetism, etc. May be
In the drawing, the cutting blade 111 of the cutting roll 110 is shown high for the sake of illustration, so the boundary between the non-cutting rotation area 113 and the cutting rotation area 112 and the position of the cutting blade 111 are largely shifted. The protruding height of the cutting blade 111 is smaller than the diameter of the cutting roll 110, and the positional deviation is slight.

In the cutting of the product P from the continuous workpiece F, first, from the state shown in FIG. 5, the rotational direction of the cut roll 110 and the driving direction of the feed unit 102 are synchronized as shown in FIG. The article F is cut by the cutting blade 111 while being supplied, and in the state shown in FIG. 7, the cutting out of the product P is completed, and the product P cut into a predetermined shape drops downward.
Then, when the object F is cut by the cutting blade 111 of the cutting roll 110, the expansion of the distance between the cutting roll 110 and the anvil roll 120 due to the cutting load is prevented by the backup roll 130 described above, and the cutting roll The expansion of the spacing due to the deflection of the intermediate portion 110 and the anvil roll 120 is prevented by the above-mentioned intermediate support roll 140.
Furthermore, at this time, the product P is adsorbed by the adsorption means 121 provided on the anvil roll 120, and the product P and the scrap K are reliably separated.
At this time, adsorption and separation can be confirmed by detecting the vacuum pressure of the adsorption means 121.
Further, at this time, since the cutting rotation area 112 of the cutting roll 110 faces the anvil roll 120 and the cutting blade 111 is in contact with the cutting edge of the scrap K, the rotation direction of the cutting roll 110 and the feed unit 102 The drive direction is still synchronized and the workpiece F is fed in the feed direction.

Next, as shown in FIG. 8, when the non-cutting rotation area 113 of the cutting roll 110 faces the anvil roll 120, the cutting blade 111 separates from the cutting edge of the scrap K, and then, as shown in FIG. The driving direction of the feed unit 102 is reversed, and the object F is pulled back.
During this time, the cut roll 110 continues to rotate in the same direction, but while the non-cutting rotation area 113 of the cut roll 110 is facing the anvil roll 120, the printing of the surface of the object F by the detection means 103 The pattern or mark is read to detect the position, and as shown in FIG. 10, the driving direction of the feed unit 102 is reversed so that the cutting blade 111 accurately hits the position to be cut next to the object F. The workpiece F is stopped, and the workpiece F is fed again in the supply direction.

In this way, it is possible to obtain a product P having a predetermined outer shape by pulling back the continuous workpiece F, supplying it again, and always cutting at the correct position.
The cutting roll 110 may be provided with a cutting blade 111 so as to cut a product having the same or different outer shape from the workpiece F in three or more rows in the axial direction.
In this case, the above-described intermediate support roll 140 is located above the intermediate gap 115 where the cutting blade 111 in the axial direction of the cut roll 110 is not provided, and downward corresponding to the intermediate gap 115 in the axial direction of the anvil roll 120. In the position of, it is provided facing oppositely from above and below.

In addition, in order to prevent crushing and chipping of the cutting edge of the cutting blade 111 due to the contact of the cutting blade 111 of the cutting roll 110 with the anvil roller 120, as shown in FIG. May be
Moreover, although not shown in figure, the contact part of the bearer part 114 of the both ends of the cut roll 110 and the anvil roll 120 is compressively deformed by load. The compressive deformation may be used to adjust the gap between the cutting roll 110 (the cutting blade 111) and the anvil roll 120 by controlling the load to prevent the cutting edge of the cutting blade 111 from being crushed or chipped.
Furthermore, a soft metal plate such as a copper plate or various resin materials may be attached to the anvil roll 120.
In addition, the bearer part 114 is distribute | arranged to the center at the cut roll 110b of FIG.

  The outer shape cutting device of the present invention is for cutting a continuous film or sheet-like cut object into a predetermined outer shape, and is suitable, for example, for producing a pouch made of a resin film, etc. As a thing, it may be applied to what kind of materials, such as metal foil, a paper material, a metal plate, etc., and can be used for various things.

100 ... outer cutting device 101 ... control unit 102 ... feed unit 103 ... detecting means 110 ... cutting roll 111 ... cutting blade 112 ... cutting revs 113 ... uncut Rotating area 114 · · · Bearer section 115 · · · Intermediate gap section 120 · · · Anvil roll 121 · · · Adsorption means 122 · · · Groove processing section 130 · · · Backup roll 140 · · · Intermediate support roll F · · ·・ Object to be cut P ··· Product K · · ·

Claims (3)

An outer shape cutting apparatus having a cutting roll having a cutting blade on an outer peripheral surface, an anvil roll provided opposite to the cutting roll, and a feed unit for supplying a continuous material to be cut to the cutting roll,
The cut roll has a cylindrical bearer portion having the same diameter as the outer diameter of the cutting blade at both axial end sides,
The bearer part, to contact with the anvil roll,
And an upper intermediate space portion in the axial direction of the cutting roll, to a position opposed to the lower middle portion in the axial direction of the anvil roll, characterized that you have intermediate support roll is provided so as to sandwich from above and below Outline cutting device.   The outer shape cutting apparatus according to claim 1, wherein a pair of backup rolls are provided so as to sandwich the upper side of the bearers at both ends of the cut roll and the lower side of the both ends of the anvil roll. The outer shape cutting apparatus according to claim 1 or 2, wherein the anvil roll has an adsorption means for adsorbing the object cut by the cutting blade onto a surface.

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