JP5853027B2 - Winding edge processing apparatus and method - Google Patents

Description

  The present invention relates to a wrapping end treatment device and a wrapping end of a resin film roll that performs a process so that the film roll can be easily unwound at the final winding end of the film roll on which the resin film sheet is wound, that is, the wrapping end. The present invention relates to a treatment method, a resin film roll provided with a winding butt formed by the treatment method, and the resin film roll product.

  For example, a sheet of plastic film for food packaging is provided as a wound film roll. This film for food packaging is very thin with a thickness of 5 to 20 μm, is colorless and transparent so that the inside can be visually recognized in a state of covering the food, and in order to seal the food inside, Adhesive so that it can be in close contact with the dish. For this reason, when using a film roll, it may not be easily peeled even if it is going to be unwound and peeled off from the winding end.

  In order to make it possible to easily peel off the winding bottom, for example, products with a picking piece such as a picking paper or tape are in circulation. However, since this knob has a small width and is affixed to the central part in the axial direction, when the user picks the knob and peels off the curly butt, a force is concentrated on the central part. In addition, if the other part is kept in a state of being adhered, only the central part is torn, and there is a possibility that it will not be peeled off and cannot be unwound. Moreover, the process which sticks a knob piece in the case of manufacture, and an apparatus for it were required, and there existed a possibility that manufacturing cost might increase.

  For this reason, methods other than sticking a knob are proposed. For example, Patent Document 1 proposes a cutting end bending apparatus that bends a winding bottom portion of a film roll. The cutting end folding apparatus is configured to inject spray air to an end portion when a film roll is formed and cut a portion serving as a winding butt, and to form a folded portion at a portion serving as a winding butt by the air flow. It is a thing.

  Patent Document 2 discloses an apparatus for forming a gripping portion on a plastic roll film that forms a gripping portion by forming a winding portion several times at the winding bottom and enlarging the portion of the winding bottom. Has been. In this apparatus, if the film roll is formed by being wound on a winding shaft (paper tube), after the rotation of the winding shaft is stopped, the winding shaft is rotated in the reverse direction to wind the winding end portion. It is provided with a configuration for taking and forming an enlarged grip portion.

Film roll R which is produced by this according to Patent Document 2 device, as shown in FIG. 5, the film sheet is formed is taken up tube 4, part of Makishiri and the winding direction of the film sheet Is provided with a gripping take-up portion 20 which is an enlarged gripping portion formed by being wound in the opposite direction.

JP-A-3-272957 Italian Industrial Invention Patent No. 01264714

  However, in the cutting end folding apparatus described in Patent Document 1, since the part of the winding end is folded back, the folded part and the outer peripheral surface of the film roll are brought into close contact with each other and folded back. The part of the film roll continuing to the part is in close contact with the inner film roll, and as a result, it is not easy to peel off the terminal part.

  Moreover, in the apparatus described in Patent Document 2, since the enlarged winding portion is formed along the axial direction, the gripping operation is facilitated, and the entire area in the direction along the axial direction is peeled off. Therefore, it is not torn. However, in order to rotate the winding shaft in the reverse direction in order to enlarge the winding portion, a reversible rotating motor is used as the driving motor for the winding shaft, or the rotation direction is transmitted by a clutch mechanism or the like. Therefore, it is necessary to provide a mechanism that can change the motor rotation and transmit the rotation of the motor to the take-up shaft, and the structure may be complicated. In addition, when the enlarged winding portion is formed, it is necessary to rotate at a speed much lower than the rotation speed when forming the film roll, so that the rotation control of the drive motor becomes complicated. ing. Further, when a paper tube is used for the take-up shaft, the end of the paper tube may be damaged or broken by changing the rotation direction.

Accordingly, a roll-end processing apparatus and roll-end processing method for a resin film roll that can change the rotation direction and rotation speed of the winding shaft with a simple structure and can reliably form a knob on the roll end, and the processing thereof It aims at providing the resin-made film provided with the winding bottom formed by the method, and the resin-made film product.

As a technical means for achieving the above object, the winding butt treatment device for a resin film roll according to the invention of claim 1 is provided with a winding butt on the winding butt of a film roll wound with a resin film sheet. In a roll end processing apparatus for a resin film roll that forms a winding section for pinching , when the film roll is formed by rotating the winding shaft in the forward direction at the winding position, the roll end immediately before completion. Film roll transporting means for moving to a processing position, and a film that is brought into contact with the film roll transported to the winding edge processing position to stop the rotation of the film roll due to inertia and to rotate the film roll in the reverse direction A roll-rotating roller and a film sheet that is brought into contact with the film roll positioned at the winding edge processing position and rotated from the winding edge to the reverse direction of the film roll. And a Makishiri processing means for forming a winding portion for knob unwound, the winding butt processing means, on a straight line along a generatrix of the film roll in the winding-ass processing position forward by a biasing means And is pressed by the film roll, and is moved to the winding edge processing position, and is moved to the winding edge processing position by retreating against the urging force of the urging means according to the diameter expansion of the knob winding portion. At the time, the end of the film roll is cut to produce a winding bottom, and the inertial rotation of the film roll is stopped by contact of the film roll rotating roller,
The film roll rotating roller is rotated, the film roll is rotated in the reverse direction together with the winding shaft, and the film roll is rotated in the reverse direction in a state where the winding edge processing means is connected to the winding edge, It is characterized by forming a winding portion for picking .

  As an apparatus used for manufacturing this type of resin film roll, for example, there is a turret type automatic winder, and according to this turret type automatic winder, a paper tube which is a winding shaft is taken up by a film sheet winding position. From the cutting position of the roll end of the film sheet and the discharge position of the film roll that is completed by winding the film sheet, the corresponding processing at each position is performed while sequentially moving by the turret mechanism. Is.

  Then, the film sheet fed at the winding position is wound on a paper tube and moved to the winding edge processing position by the turret mechanism or the like immediately before completion. At this time, the film sheet is not cut, and the leading edge of the preceding film roll and the beginning of the subsequent film roll are connected. Therefore, the curling edge and the head are separated by cutting with a cutter knife arranged at a midway position to be moved to the curling edge processing position. This completes the preceding film roll. Thereafter, it is transferred to the winding edge processing position. In addition, since the film sheet | seat is tension | tensified appropriately when cut | disconnecting by a roll end, it rotates slightly in the same forward direction as the case where a film roll is formed by inertia after cutting | disconnection.

When the film roll is transferred to the winding edge processing position, the film roll rotating roller is brought into contact with the film roll. Thereby, the rotating film roll is stopped by inertia. Further, the winding edge processing means is operated, and the winding edge connecting plate is advanced by the biasing means and is pressed against the film roll. At this time, the winding edge connecting plate is in line contact with the film roll along a straight line along the busbar of the film roll. In this state, the film roll rotating roller is operated to rotate the film roll in the reverse direction. This number of rotations is much smaller than the number of rotations when the film sheet is wound around the paper tube, and when the winding butt reaches the winding butt connecting plate by this reverse rotation, the winding butt is restrained. The winding bottom is peeled off by the reverse rotation of the roll, and the picking portion for picking is formed. Further, the knob winding portion formed by winding is gradually enlarged in diameter as it is wound, and then the winding bottom connecting plate is retracted against the biasing force of the biasing means. And the rotation of a film roll is stopped in the state which became an appropriate diameter for picking up this winding part for picking, and it feeds to the following process.

  The film roll in which the knob winding portion is formed is discharged from the winding edge processing position or to the discharge position for packaging or the like, and then discharged and transferred to the next process.

According to a second aspect of the present invention, the film roll rotating roller is supported by a free end of a swing arm supported so as to be swingable at a base end. And moving forward and backward with respect to the film roll by swinging of the swinging arm, and contacting the film roll when moving forward.

  The film roll rotating roller may be arranged at a fixed position, and the film roll transferred to the winding edge processing position may come into contact with the film roll rotating roller to stop the inertial rotation. There is a possibility that the completed film roll may be damaged by the impact. Therefore, the film roll rotating roller can be swung between a position in contact with the film roll at the winding edge processing position and a retracted position so as to swing with respect to the film roll transferred to the winding edge processing position. It is made to contact.

Further, in the winding butt treatment apparatus for a resin film roll according to the invention of claim 3 , the surface of the winding butt connecting plate has a rubber double structure, and the hardness of the surface rubber is larger than the hardness of the inner rubber. It is characterized by that.

  A structure in which rubber is pasted on the surface of the winding butt connection plate so as to exhibit an appropriate frictional force in a state where the winding butt connection plate is in contact with the film roll. The rubber has a double structure, and the inner rubber is softer than the rubber on the front side.

Further, the winding ass processing method of the resin film roll according to the invention of claim 4, the winding ass wound film roll resin film sheet, the plucking winding section for pinch ass the winding In the curling edge processing method of the resin film roll to be formed, when the film roll is formed by rotating the winding shaft in the forward direction at the winding position, it is moved to the winding edge processing position immediately before completion, and the curling edge processing is performed. After stopping the rotation of the film roll moved to the position due to inertia, the film roll is rotated in the reverse direction, advanced to the film roll positioned at the winding edge processing position by the urging means, and wound by the winding edge restraining means. Constraining the butt, forming a winding part for picking from the winding butt by rotating the film roll in the reverse direction, and the winding butt restraining means is adapted to expand the diameter of the picking winding part. Against the force It is characterized in that withdrawal.

The present invention relates to a method of forming a pick-up take-up section on the winding end of a film roll. A film roll formed by winding a film sheet on a take-up shaft is cut at a roll end and transferred to the roll end processing position. In Makishiri processing position, after restraining the winding butt to advance the winding butt restraining means, the rotational direction when forming the film roll Ru rotate the film roll in the opposite direction. Thereby, the winding part for picking is formed with the film sheet unwound while unwinding from the winding bottom . Further, at this time, it is allowed that the diameter of the knob winding portion is increased by the retracting of the winding tail restraining means.

In addition, a method for winding a roll end of a resin film roll according to a fifth aspect of the invention is a method for winding a film roll using the roll tail processing apparatus for a resin film roll according to any one of claims 1 to 4. A winding part for picking is formed on the buttocks.

  According to a seventh aspect of the present invention, there is provided a resin film roll comprising a gripping winding portion formed by the method for treating a bottom end of a resin film roll according to the fifth or sixth aspect.

  A resin film roll product according to the invention of claim 8 is characterized in that the resin film roll of claim 7 is housed in a storage box.

According to the winding edge processing apparatus or the winding edge processing method of the resin film roll according to the present invention, a reversible rotation motor is used as the drive motor to reversely rotate the winding shaft, or the rotation direction is changed via the clutch mechanism. It is possible to form the winding part for picking on the winding end of the film roll with a simple structure, without the need for a structure that reversely transmits it, and with a simple structure. In particular, since it is not necessary to carry out complicated rotation control of the drive motor for the winding shaft, the reliability of the operation is improved, and the winding portion for picking can be reliably formed.
Moreover, since the winding part for picking is formed in a state where the winding bottom connecting plate is pressed against the film roll, the winding bottom of the film roll is surely wound and the winding part for picking is reliably formed. . Moreover, since the winding bottom connecting plate can be constituted by a flat plate, it has a simple structure and can suppress an increase in cost.

  According to the roll end processing apparatus for a resin film roll according to the invention of claim 2, since the film roll rotation roller is brought into contact with the film roll located at the roll end processing position, the film roll rotation roller is used as the film roll. The speed at the time of contact can be easily adjusted, the film roll is not impacted, and the film roll is not damaged.

Moreover, according to the winding edge processing apparatus of the resin film roll which concerns on invention of Claim 3 , an appropriate frictional force is exhibited between the rubber | gum of a winding edge connection board and a film sheet, and with respect to rotation of a film roll Thus, the winding bottom can be reliably restrained, and the knob winding portion can be reliably formed. Moreover, by making the inner rubber soft, an appropriate buffering property is provided on the surface of the winding bottom connecting plate, and the winding bottom can be restrained more reliably. Further, by using a hard rubber on the surface side, it is durable against wear and can be used continuously.

In addition, according to the winding bottom processing method of the resin film roll according to the invention of claim 5 , it is possible to more reliably form the take-up portion for gripping and provide a resin film roll that is easy to handle for consumers. it can.

It is a side view which shows the general | schematic structure explaining the operation | movement of the winding edge processing apparatus of the resin film roll which concerns on this invention. It is a front view which shows the general | schematic structure of the winding edge processing apparatus of the resin film roll which concerns on this invention. It is a side view which shows the general | schematic structure of the winding edge processing apparatus of the resin film roll which concerns on this invention. It is a side view which shows the general | schematic structure of the manufacturing apparatus of the film roll suitable for providing the roll tail processing apparatus of the resin film roll which concerns on this invention. It is a perspective view which shows the resin film roll provided with the roll tail formed by the roll tail processing apparatus or the roll tail processing method of the resin film roll which concerns on this invention.

  Hereinafter, based on the preferred embodiments shown in the drawings, a winding butt processing apparatus for a resin film roll according to the present invention will be described. In addition, a winding butt processing method for a resin film roll, and a winding formed by the processing method will be described. A resin film roll having a hip and a resin film roll product will be described.

FIG. 4 is a diagram showing an outline of a resin film roll manufacturing apparatus 1 that is suitable for mounting the winding edge processing apparatus 10 for a resin film roll according to the present invention. The manufactured film sheet is wound up, further cut into a width when shipped to a winder device, wound up, processed into a raw fabric P, and this raw fabric P is supplied to the manufacturing apparatus 1. . The preliminary raw web P ₁ is waiting to be subjected to the production of the next film roll.

  The film sheet unwound from the original fabric P is adjusted in tension and the like while being wound around a plurality of guide rollers 2, and is guided to the turret mechanism 3 which is a film roll transfer means. The turret mechanism 3 sequentially moves the paper tubes 4 as winding shafts supplied from the paper tube hopper 4a in accordance with the processing steps, and the paper tubes 4 are transferred by the rotation of the turret board 3a. A film sheet S guided by the guide roller 2 is wound around the paper tube 4 and processed into a film roll R.

  In the vicinity of the turret board 3a, a winding edge processing apparatus 10 for a resin film roll according to the present invention is disposed. The winding edge processing apparatus 10 is mainly composed of a film roll rotating roller 11 and a winding edge processing apparatus 12 as a winding edge processing means.

  The film roll rotating roller 11 is rotatably supported by a free end of a swing arm 11b whose base end is supported so as to be swingable about a swing shaft 11a. As will be described later, the roller 11 for rotating the film roll moves between a position contacting the film roll R at the winding edge processing position and a position separating from the position where the film roll R rotates. The swing shaft 11a is connected to the output shaft of a drive motor (not shown). A drive pulley 11c and a tension pulley 11d wound around the swing shaft 11a, and a driven pulley 11e coaxial with the film roll rotating roller 11 are provided. The output rotation of the drive motor is transmitted to the film roll rotation roller 11 through a drive belt 11f that is stretched over the film roll.

  The winding butt processing device 12 is arranged so that the winding butt connecting plate 12a made of a long plate material along the axial direction of the film roll R and the winding butt connecting plate 12a with respect to the film roll R at the winding butt processing position described later. And a piston / cylinder mechanism 13 that moves forward and backward. The winding bottom connecting plate 12a is attached to the tip of the piston rod 13a of the piston / cylinder mechanism 13.

  The details of the winding edge processing device 12 will be described with reference to FIGS. A mounting plate 14 is supported on the tip of the piston rod 13a via a mounting block 14a. The winding butt connecting plate 12a is attached to both ends of the mounting plate 14 in the longitudinal direction via mounting screws 14b. In addition, by changing the tightening position of the mounting screw 14b with respect to the mounting plate 14, the position of the winding butt connection plate 12a with respect to the piston rod 13a can be adjusted, and the positions of both ends of the winding butt connection plate 12a can be adjusted. Further, the piston / cylinder mechanism 13 is attached to the bracket by fastening a fastening bolt (not shown) screwed to the female screw portion 13b to a bracket (not shown), and by changing the fastening position of the fastening bolt, the film The position of the roll R in the direction perpendicular to the axis can be adjusted.

The winding butt connecting plate 12a is a plate having a length sufficient to cover the longitudinal direction of the film roll R, and a rubber material is attached to the surface facing the film roll R. This rubber material is formed in duplicate, and the surface rubber 15a on the front side and the inner rubber 15b on the inner side have different hardness, and the surface rubber 15a has a higher hardness than the inner rubber 15b. For example, when the Shore hardness of the surface rubber 15a is 50, 60, 72, 81 (A scale, 15 seconds value), the Shore hardness of the inner rubber 15b is 37, 41, 46 (A scale, 15 seconds value). It is preferable to use an appropriate combination of these. The shore hardness of the surface rubber 15a may be 40 to 90 (A scale, 15 second value), and the shore hardness of the inner rubber 15b may be 30 to 50 (A scale, 15 second value). The surface rubber 15a is preferably made of chloroprene rubber, urethane rubber, silicon rubber, or the like. However, the material of the surface rubber 15a should also be compatible with the material of the film sheet. In the case of a polyvinyl chloride film sheet, the surface rubber 15a is particularly preferably urethane rubber. By using urethane-based rubber, in the process of forming the knob winding part, the winding bottom is securely restrained and held, and when discharging, the knob winding part adheres to the surface rubber 15a and does not peel off. Trouble does not occur and wear resistance is excellent.
On the other hand, the inner rubber 15b may be made of chloroplane rubber, urethane rubber, silicon rubber, or the like.

The paper tube 4 is sequentially transferred to the receiving position 41, the roll forming position 42, the winding edge processing position 43, and the discharging position 44 by the turret mechanism 3. The paper tube 4 supplied from the paper tube hopper 4a is received at the receiving position 41, and the film sheet S is wound around the paper tube 4 at the roll forming position 42 to form the film roll R. A knob winding portion 20 (shown in FIG. 5 ) is formed at the winding bottom. The film roll R on which the knob winding part 20 is formed is transferred to the discharge position 44 and then rolled on the transfer plate 5 to be transferred to the next process such as a packaging process.

  The effect | action of the winding edge processing apparatus of the resin film roll based on this invention comprised by the above is demonstrated below.

The paper tube 4 supplied from the paper tube hopper 4a is left to the turret board 3a of the turret mechanism 3 at the receiving position 41. When the preceding paper tube 4 the film roll R is formed by the roll forming position 42, the turret plate 3a at immediately before completion is actuated to transfer each paper pipe 4 to the next position. The film roll R immediately before the completion at the roll forming position 42 is transferred to the winding edge processing position 43. In the middle of this transfer, it is cut at the end of the film roll R preceded by the cutter knife (not shown) provided in the turret board 3a, that is, at the winding end, and the film sheet S and the succeeding film roll R The film sheet S wound around the next paper tube 4 is separated, and the rotation of the preceding paper tube 4 is stopped. The cut film portion S of the succeeding portion is wound around the next paper tube 4 from the leading edge of the cut most advanced portion.

  The preceding film roll R, which has been cut with a cutter knife and formed with a winding edge, is rotated by inertia even when it is transferred to the winding edge processing position 43. Since this is tensioned so as to be surely cut by the cutter knife, the inertial force acts by the cutting and inertial rotation occurs. Further, the rotation direction at this time is a forward direction in which the film sheet S is wound around the paper tube 4.

When the film roll R is positioned at the winding edge processing position 43, the swing arm 11b swings to bring the film roll rotating roller 11 into contact with the film roll R. As a result, the rotation of the film roll R due to inertia stops. Further, the piston / cylinder mechanism 13 is operated, and the piston rod 13a is moved forward so that the winding edge connecting plate 12a is brought into contact with the film roll R. In this state, the film rotation roller 11 is rotated to rotate the film roll R in the reverse direction. At this time , the rotational speed is much smaller than the rotational speed when the film sheet S is wound. The rotation in the opposite direction is the direction of unwinding the film sheet S from the film roll R. On the other hand, since the roll end connecting plate 12a is in contact with the film roll R, the contacted portion is the rotation of the film roll R. Will be unwound at that part. At this time, the hardness of the surface rubber 15a of the winding butt connecting plate 12a is large, and the winding on the winding butt connecting plate 12a is caused by the difference between the adhesive force of the film roll R and the frictional force between the surface rubber 15a and the film roll R. When the hips are rotated in reverse until the hips face each other, and when the winding hips are connected to the winding hips connecting plate 12a, they are unwound from the winding hips, and the unrolled portion is connected to the winding hips as shown in FIG. Since the movement is prevented by the plate 12a, a lump is formed at a position in contact with the winding bottom connecting plate 12a, and this is wound up to form the knob winding portion 20.

When the knob winding part 20 having an appropriate size is formed, the film roll R is transferred to the discharge position 44 by the turret board 3a and guided to the next process by the transfer plate 5.

As described above, the knob roll 20 is formed in the longitudinal direction of the film roll R on the film roll R manufactured by the resin film roll winding edge processing apparatus. When using this film roll R can be taken easily picking the knob Yomakito portion 20. The film sheet S can be easily spread by grasping and unwinding the knob winding part 20, and since it is unwound over the entire lengthwise direction, it can be used without being torn at an inadvertent position. Selfishness will be improved.

  The completed film roll R is stored in a predetermined box and shipped as a food packaging film.

According to the winding edge processing apparatus or the winding edge processing method of a resin film roll according to the present invention, there is no need to reversely rotate a winding shaft for winding a film sheet such as a paper tube, and the winding for picking is made with a simple structure. Since the portion can be formed, it contributes to the distribution of film rolls such as food packaging films that are easy to handle.

P Raw material S Film sheet R Film roll 1 Resin film roll manufacturing apparatus 2 Guide roller 3 Turret mechanism (film roll transfer means)
4 Paper tube (winding shaft)
5 Transfer plate
10 Winding edge processing equipment
11 Film roll rotating roller
11b Swing arm
12 Winding edge processing equipment (winding edge processing means)
12a Coupling plate
13 Piston and cylinder mechanism
13a Piston rod
15a rubber surface
15b inner rubber
20 Winding part for picking
41 Accepting position
42 Roll forming position
43 End position
44 Discharging position

Claims (5)

In the winding edge processing apparatus of the resin film roll that forms a winding part for picking to pinch the winding edge on the winding edge of the film roll wound with the resin film sheet,
When forming a film roll by rotating the take-up shaft in the forward direction at the take-up position, a film roll transfer means that moves to the winding end processing position immediately before completion,
A film roll rotating roller that is brought into contact with the film roll transferred to the winding edge processing position to stop the rotation of the film roll due to inertia and can rotate the film roll in the reverse direction;
A winding edge processing means for contacting the film roll located at the winding edge processing position and unwinding the film sheet from the winding edge by rotation in the reverse direction of the film roll to form a winding part for picking ;
The winding edge processing means is advanced by the urging means and is pressed against the film roll on a straight line along the generating line of the film roll at the winding edge processing position, and the diameter of the winding part for picking is increased. Accordingly, it consists of a winding bottom connecting plate that moves backward against the biasing force of the biasing means,
When moving to the winding edge processing position, the end of the film roll is cut to generate the winding edge,
The inertial rotation of the film roll is stopped by contact with the film roll rotating roller,
The film roll rotating roller is rotated, the film roll is rotated in the reverse direction together with the winding shaft,
A film film end processing apparatus for a resin film roll, wherein the film roll is rotated in the reverse direction in a state in which the end part is connected to the end part, and a winding part for picking is formed on the end part. The roller for rotating the film roll is supported on a free end of a swing arm supported so as to be swingable at a base end, and moves forward and backward with respect to the film roll by swinging of the swing arm. The roll-end processing apparatus for a resin film roll according to claim 1, wherein the roll roll is in contact with the film roll occasionally. The winding surface of the butt interlocking plate and rubber double structure, a resin film roll according to claim 1 or claim 2, characterized in that the hardness of the surface rubber is made larger than the hardness of the inner rubber Winding edge processing equipment. In the winding edge processing method of the resin film roll forming the winding part for picking to pinch the winding edge on the winding edge of the film roll wound up of the resin film sheet,
When forming the film roll by rotating the winding shaft in the forward direction at the winding position, it is moved to the winding edge processing position immediately before completion,
After stopping the rotation due to the inertia of the film roll moved to the winding edge processing position, rotate the film roll in the reverse direction,
The film roll located at the winding edge processing position is advanced by the urging means, the winding edge is restrained by the winding edge restraining means, and the take-up portion for picking is formed from the winding edge by rotating the film roll in the reverse direction. A method of winding the bottom end of a resin film roll, characterized in that the winding bottom restraining means moves back against the biasing force of the biasing means in accordance with the expansion of the knob winding portion . A resin film roll characterized in that a winding portion for picking is formed at the winding bottom of the film roll using the winding bottom processing apparatus for a resin film roll according to any one of claims 1 to 3. Winding edge processing method.

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