JP2017119420A - Roll processing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll processing apparatus which prevents damage to a continuous film-like or sheet-like processed object, enables stable molding to be performed, and enables improvement of the work efficiency.SOLUTION: At least one of a molding roll 110 and an anvil roll 120, which is supplied with a continuous processed object F and processes the processed object into a predetermined shape, has cylindrical bearer parts 114 at both axial end sides.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a roll processing apparatus that has a forming roll and an anvil roll provided to face the forming roll, and forms a continuous film-like or sheet-like workpiece.

Conventionally, a sheet processing method for three-dimensionally forming a continuous film-like workpiece such as a pouch is known.
For example, in packaging pouches formed with laminated synthetic resin films, it is required to differentiate the products and increase the product value by arranging various designs and patterns together with characters such as product names. . In order to satisfy such a requirement, printed characters, designs, patterns, and the like are three-dimensionally formed to make them stand out. In addition, in packaging pouches, the contents are sealed and packaged, and transferred to another container for easy transfer by securing the flow path by projecting the spout used on both sides by three-dimensional molding. The three-dimensional molding of such a packaging pouch is performed by forming an overhanging portion by hot press molding on each of two laminated synthetic resin films that are stacked one above the other, and then cooling it to the outside. The spout is configured by superimposing the overhanging portions. Patent Document 1 discloses a technique characterized by preheating a laminated film, press-molding, and simultaneously cooling in a mold. Document 2 discloses a technique characterized in that a plastic film is heated and then molded while being cooled.

However, the means for heating and forming requires the time required for heating and the time required for cooling, and there is a problem that the processing speed is limited and high-speed processing is difficult.
In addition, two laminated synthetic resin films must be three-dimensionally molded and then stacked and bonded together by heat sealing or the like to complete the packaging pouch. In addition, there is a problem that a shift due to work elongation accompanying press molding occurs, and there is a problem that only a protruding portion that is smaller than the size of the spout can be formed in order to provide a margin that allows for the shift.

In order to solve these problems, the applicant compression-molded a laminated synthetic resin film in which at least the soft inner surface film on the innermost surface and the outer surface film with high strength on the outer surface side are laminated in the thickness direction in the cold, A three-dimensional molding method was proposed in which the compression-molded portion is projected outward (see Patent Document 3).
According to this method, there is no need for heating and cooling, energy such as electric power required for processing can be greatly reduced, processing time can be shortened and high-speed processing can be performed, and two laminated synthetic resin films can be used. Even if it exists, a compression molding part can be made to project to the outer surface side, and can be easily three-dimensionally molded.

JP 2000-343603 A Japanese Patent Laid-Open No. 2001-18996 JP 2014-046655 A

When continuously performing the three-dimensional forming in the cold known in Patent Document 3, it is performed using a forming roll having a processing die member that comes into contact with a film-like or sheet-like workpiece. When the forming process is carried out using the, a forming roll or an anvil roll facing the forming roll may be deformed by a load.
In this case, there is a possibility that the distance between the processing die member of the forming roll and the anvil roll changes, and the film-like or sheet-like workpiece is damaged or the forming is not performed well.

  The present invention solves the above-mentioned problems, prevents damage to a continuous film-like or sheet-like workpiece, and enables stable molding, thereby improving work efficiency. It aims at providing the roll processing apparatus which can be improved.

  The roll processing apparatus according to the present invention is a processing apparatus for a workpiece having a forming roll and an anvil roll provided to face the forming roll, and the forming roll is in contact with the workpiece. A cylindrical bearer portion is provided on both ends in the axial direction of at least one of the forming roll or the anvil roll, and the forming roll and the anvil roll are brought into contact with each other at the bearer portion. It is a solution.

According to the roll processing apparatus according to the first aspect of the present invention, the cylindrical bearer portions are provided on both axial ends of at least one of the forming roll or the anvil roll, and the forming roll and the anvil roll are brought into contact with each other at the bearer portion. Since the distance between the mold member of the forming roll and the anvil roll is uniform and the change due to the load can be suppressed, it is possible to prevent damage to the work piece and to perform stable forming. Efficiency can be improved.
In addition, since the vibration during molding is small and the molding load is reduced, the equipment can be downsized.

According to the structure of this Claim 2, a pair of backup rolls is provided respectively so that a bearer part is provided in the both ends of a forming roll, and the upper part of a bearer part and the lower part of the both ends of an anvil roll are pinched | interposed. As a result, the gap between the forming roll and the anvil roll due to the load is prevented from being widened, damage to the workpiece can be prevented more reliably, and stable molding can be performed.
According to the configuration of the third aspect of the present invention, the intermediate support roll is sandwiched from above and below at a position opposed to the upper side of the intermediate gap portion in the axial direction of the forming roll and the lower side of the intermediate portion in the axial direction of the anvil roll. And back-up rolls prevent the expansion of the spacing due to bending of the middle part of the forming roll and anvil roll due to the load, further preventing damage to the work piece and stable forming. It can be carried out.

According to the configuration of the present invention, the three-dimensionally formed portion formed by reducing the molding load, improving the moldability, and compressing by having a heating mechanism for heating the workpiece upstream of the molding roll. The amount of change in molding height under high temperature conditions can be reduced.
According to the configuration of the fifth aspect of the present invention, since the roll temperature can be kept constant by providing the cooling mechanism in the roll at the position where the influence of heat is large, the influence of the heat caused by the forming load or the heating mechanism. This suppresses a change in the distance between the forming die member of the forming roll and the anvil roll, and enables stable forming of the workpiece.

The schematic front view of the roll processing apparatus which concerns on one Embodiment of this invention. FIG. 2 is a perspective explanatory view of the roll processing apparatus of FIG. 1. FIG. 3 is a partially enlarged cut view of FIG. 2. The schematic front view of the roll processing apparatus which concerns on other one Embodiment of this invention.

As shown in FIGS. 1 to 3, a roll processing apparatus 100 according to an embodiment of the present invention includes a forming roll 110 capable of fixing a processing mold member 111 having a compression portion 112 at an axial center portion, and a forming roll 110. And a feed unit (not shown) for supplying a continuous film-like or sheet-like workpiece F between the forming roll 110 and the anvil roll 120, for example. have.
In the present embodiment, the forming roll 110 has two intermediate regions in the axial direction in which the work mold member 111 can be fixed, and cylindrical bearer portions 114 at both axial ends.
The cylindrical bearer portion 114 has a diameter larger than or equal to the outer diameter of the fixed work mold member 111, and a slightly larger diameter is preferable.

The forming roll 110 is provided with a processing die member 111 so as to form the workpieces F in two rows in the axial direction, and an intermediate gap portion where the processing die member 111 does not exist over the entire circumference in the central portion in the axial direction. 115.
In the present embodiment, the machining die member 111 is designed to be fixed to two axial regions, two in the circumferential direction, for a total of four, but depending on the required machining width and machining length. Accordingly, the number of axial regions and the number of circumferential regions can be appropriately designed.
Further, the bearer portions 114 are arranged on both ends in the axial direction of the forming roll 110. However, as long as the work piece F such as a film does not pass through the bearer portion 114, the bearer portion 114 is also provided at the center of the roll depending on the length and diameter of the forming roll 110. May be arranged.

Then, in a state where the bearer portions 114 on both ends in the axial direction of the forming roll 110 are in contact with the anvil roll 120, the workpiece F is shaped into the shape of the compression portion 112 by the compression portion 112 and the anvil roll 120 of the work mold member 111. It is configured to compress and form three-dimensionally.
By configuring in this way, the distance between the work mold member 111 and the anvil roll 120 is uniform, the work mold member 111 uniformly hits the work F, and changes due to the load can be suppressed. In addition to preventing damage to F, stable molding can be performed, and work efficiency can be improved.
Further, since the vibration during molding is small and the molding load is reduced, the equipment can be downsized.
In this embodiment, the bearer portions 114 are provided at both axial ends of the forming roll 110, but both axial ends of the anvil roll 120 or both axial ends of both the forming roll 110 and the anvil roll 120 are provided. Each may be provided with a bearer portion 114.
However, the forming roll is usually moved up and down with respect to the anvil roll fixedly attached by an air cylinder or the like, and the forming roll is easy to adjust the distance between the processing mold member 111 of the forming roll 110 and the anvil roll 120. It is preferable to provide the bearer part 114 in the both ends of 110 in the axial direction.
And if necessary, the work mold member 111 of the forming roll 110 is adjusted, and the distance from the anvil roll 120 is also adjusted.

Further, in order to prevent the forming roll 110 from being lifted and deformed, and the anvil roll 120 from being deformed, the upper part of the bearer portions 114 at both ends of the forming roll 110 and the lower part of both ends of the anvil roll 120 are sandwiched from above and below, respectively. A pair of backup rolls 130 is provided.
Further, in order to prevent bending of the intermediate portion of the forming roll 110 and the anvil roll 120, a backup roll 130 is also provided below the intermediate portion in the axial direction of the anvil roll 120, and the axial direction of the forming roll 110 at the opposite position is provided. An intermediate support roll 132 is provided above the intermediate gap 115 provided in the intermediate part.
This makes it possible to further suppress changes due to the load.
Further, in this embodiment, the height of the backup roll 130 below the anvil roll 120 can be finely adjusted by the adjustment mechanism 140, so that the adjustment at the time of exchanging the work mold member 111 due to product change or wear is easy. Thus, the work efficiency can be further improved.

Further, as in the roll processing apparatus 100b shown in FIG. 4, the bearer part 114 may be provided also in the intermediate part of the forming roll 110b, and this causes the bearer part 114 to contact the anvil roll 120 even in the intermediate part. Furthermore, changes due to load can be suppressed, and stable molding can be performed.
Furthermore, although not shown, a heating unit that heats the film is formed in order to reduce the molding load, improve the moldability, and reduce the amount of change in the molding height under high temperature conditions of the three-dimensional molded part formed by compression. It may be provided upstream of 110.
In addition, the temperature of the forming roll 110 and the anvil roll 120 is kept constant by suppressing a change in the distance between the processing die member 111 of the forming roll 110 and the anvil roll 120 due to the influence of the heat generated by the forming load and the heating mechanism. To do so, a cooling mechanism 150 may be provided as shown in FIG.
In the present embodiment, only the forming roll 110 and the anvil roll 120 are provided with the cooling mechanism 150. However, all the rolls including the backup roll 130 and the intermediate support roll 132 are provided with a cooling mechanism. Alternatively, the cooling mechanism may be provided only on some of the rolls of the forming roll 110, the anvil roll 120, the backup roll 130, and the intermediate support roll 132 that are particularly concerned about the influence of heat.

The operation | movement which performs the solid processing of a predetermined shape to the continuous film-form or sheet-like to-be-processed object F by the roll processing apparatus 100 comprised as mentioned above is demonstrated.
The continuous workpiece F is supplied between the forming roll 110 and the anvil roll 120 by a feed unit, and when the compression part 112 of the processing mold member 111 is opposed to the anvil roll 120, a three-dimensional processing having a predetermined shape is performed. Is given.
The control unit controls the rotation speed of the forming roll 110 so that the compressing portion 112 accurately reaches the next processing location of the workpiece F when the compressing portion 112 of the forming roll 110 is not facing the anvil roll 120. And control the feed unit drive speed.

Detection means for detecting a position by reading a printed pattern or mark on the surface of the workpiece F is provided upstream of the forming roll 110, preferably in the vicinity of the upstream, and the control unit is based on a detection signal of the detection means. Operates to subject the workpiece F to three-dimensional processing at an accurate position.
The anvil roll 120 rotates in synchronization with the forming roll 110 with a gear or the like, but may be separately controlled for rotation by a control unit.
The feed unit may be any mechanism such as two rollers that sandwich the workpiece F from above and below.
Further, the detecting means may be one that optically reads a printed pattern or mark, or may be any one that makes physical contact, uses ultrasonic waves, infrared rays, electromagnetic waves, or the like.

In the operation of performing the three-dimensional processing by the compression to the continuous workpiece F, first, the rotation direction of the forming roll 110 and the driving direction of the feed unit are synchronized, and the three-dimensional processing is performed by the compression unit 112 while the workpiece F is supplied. Is done.
Further, when the workpiece F is three-dimensionally processed by the compression unit 112, the expansion of the gap between the forming roll 110 and the anvil roll 120 due to the load is prevented by the backup roll 130 described above, and the forming roll 110 and the anvil roll are also provided. Spacing due to the bending of the intermediate portion 120 is prevented by the intermediate support roll 132 described above.

Next, when the compression unit 112 reaches a position where it does not face the anvil roll 120, the driving of the feed unit is stopped.
During this time, the forming roll 110 continues to rotate in the same direction, but until the next compression unit 112 faces the anvil roll 120, the printed design and marks on the surface of the workpiece F are read by the detecting means. The position is detected, and the feed unit is controlled so that the compression unit 112 accurately contacts the position to be processed next to the workpiece F, and the workpiece F is fed again in the supply direction.

In this way, a continuous workpiece F is temporarily stopped, supplied again, and processing by the compression unit 112 is always performed at an accurate position, so that a three-dimensional processing of a predetermined shape can be performed at a predetermined position. .
The forming roll 110 may be provided with the processing die member 111 so as to perform three-dimensional processing of the same or different outer shape from the workpiece F in three or more rows in the axial direction.
In this case, a backup roll 130 is provided at a lower position corresponding to the intermediate gap 115 in the axial direction of the anvil roll 120, and the above-described intermediate support roll 132 is provided with the processing die member 111 in the axial direction of the forming roll 110. It is provided so as to be sandwiched above the intermediate gap 115 that is not provided.

  The roll processing apparatus of the present invention performs a predetermined three-dimensional processing by compression on a continuous film-like or sheet-like workpiece, for example, suitable for manufacturing a pouch made of a resin film, As long as the processing uses a forming roll and an anvil roll, it can be applied to any processing, and as a workpiece, it may be applied to any material such as metal foil, paper material, metal plate, It can be used for various things.

DESCRIPTION OF SYMBOLS 100 ... Roll processing apparatus 110 ... Forming roll 111 ... Process type | mold member 112 ... Compression part 114 ... Bearer part 115 ... Intermediate space part 120 ... Anvil roll 130 ... Backup Roll 132 ... Intermediate support roll 140 ... Adjustment mechanism 150 ... Cooling mechanism F ... Workpiece

Claims (5)

A roll processing apparatus having a forming roll and an anvil roll provided facing the forming roll,
The forming roll has a processing mold member that comes into contact with a workpiece,
Cylindrical bearer portions are provided on both ends in the axial direction of at least one of the forming roll or the anvil roll,
The roll processing apparatus, wherein the forming roll and the anvil roll come into contact with each other at the bearer portion.   The bearer part is provided at both ends of the forming roll, and a pair of backup rolls are provided respectively so as to sandwich the upper part of the bearer part and the lower part of both end parts of the anvil roll. The roll processing apparatus according to 1. An intermediate support roll is provided above the intermediate gap in the axial direction of the molding roll,
The roll processing apparatus according to claim 1, wherein a backup roll is provided at a position facing the intermediate support roll below an intermediate portion in the axial direction of the anvil roll.   The roll processing apparatus according to any one of claims 1 to 3, further comprising a heating mechanism that heats the workpiece upstream of the forming roll.   The roll processing apparatus according to any one of claims 1 to 4, wherein some or all of the rolls have a cooling mechanism.