CN109384066B

CN109384066B - Cutting leftover coiling device and cutting leftover coiling method for continuous label paper

Info

Publication number: CN109384066B
Application number: CN201810299161.3A
Authority: CN
Inventors: 户卷仁; 高桥俊; 藤原铃司
Original assignee: Miyakoshi Printing Machinery Co Ltd
Current assignee: Miyakoshi Printing Machinery Co Ltd
Priority date: 2017-08-09
Filing date: 2018-04-04
Publication date: 2023-09-12
Anticipated expiration: 2038-04-04
Also published as: EP3441333A1; KR20190016885A; KR102425279B1; EP3441333B1; JP6831571B2; AU2018201679B2; JP2019031387A; CN109384066A; AU2018201679A1

Abstract

A cutting surplus material winding device is provided with a surplus material winding shaft, an up-down moving mechanism, a linear encoder, a third sensor, a calculating part and a control part. The leftover winding shaft winds the cut leftover into a roll shape. The up-and-down moving mechanism moves the residual material winding shaft in a direction away from the fixed stripping roller. The calculation unit obtains the winding diameter of the cut surplus winding based on the detection result of the linear encoder and the third sensor. The control unit controls the up-and-down movement mechanism so that the residual material winding axis moves in a direction away from the fixed peeling roller based on the winding diameter determined by the calculation unit.

Description

Cutting leftover coiling device and cutting leftover coiling method for continuous label paper

Technical Field

The application relates to a cutting leftover coiling device and a cutting leftover coiling method for continuous label paper.

The present application claims priority from japanese patent application No. 2017-154396, filed 8-9 in 2017, and the contents of which are incorporated herein by reference.

Background

As a cutting residue winding device for continuous label paper, there is known a device in which characters or patterns are printed on continuous label paper, a label base material and an adhesive layer of the continuous label paper are cut into a predetermined shape, and an unnecessary cut residue portion is peeled from a base paper and wound around a residue winding shaft. The cut surplus material of the label base material and the adhesive layer cut into a predetermined shape is difficult to secure its strength, and may be broken until reaching the surplus material winding shaft.

Therefore, it is not desirable to apply a strong tension to the cut surplus during the period from the time after the cut surplus is peeled off from the liner to the time until the surplus winding shaft is reached.

Here, if the torque of the surplus material winding shaft is constant, the tension applied to the cut surplus material varies according to the change in the winding diameter of the cut surplus material wound around the surplus material winding shaft. In addition, the tension applied to the cut surplus material varies due to the influence of the mechanical loss of the mechanical system or the torque variation of the servo motor caused by acceleration and deceleration of the winding speed. Therefore, the cut surplus may be broken due to tension fluctuation in winding of the cut surplus.

The cut surplus material is cut into a predetermined shape. Therefore, the cut surplus material has a property of contracting in a direction perpendicular to the tension direction (width direction of the cut surplus material) when tension is applied to the conveying direction. Here, when the predetermined shape is a circular shape or an irregular shape other than a rectangle, the shrinkage of the cut surplus is difficult to be constant. Therefore, the load is considered to be concentrated on a portion where the shrinkage amount of the cut surplus material is large, and to fluctuate in a direction perpendicular to the tension direction. In this state, if the tension of the cut surplus material fluctuates, the cut surplus material is liable to break.

In particular, if the section from the time when the cut surplus material is peeled off from the backing paper to the time when the cut surplus material reaches the surplus material winding shaft (hereinafter referred to as a surplus material path) is long, the shrinkage amount in the width direction of the cut surplus material becomes large, and the load concentration portion becomes large. If the shrinkage amount in the width direction of the cut surplus material is large, a portion where the winding diameter of the wound cut surplus material is large and a portion where the winding diameter is small appear, and the wound cut surplus material has a large tension at the portion where the winding diameter is large.

The cut surplus material is easily broken at a portion where the shrinkage in the width direction of the cut surplus material is large and the load is concentrated or a portion where the winding diameter of the surplus material is large and the tension is large.

In order to suppress breakage of the cut scraps, a cut scraps winding device for continuous label paper includes a device for bringing the outer periphery of the cut scraps wound around a scraps winding shaft into pressure contact with a scraps winding driving roller. The roll driving roller rotates synchronously at the conveying speed of the continuous label paper.

The adhesive layer of the cut surplus material is stuck to the surplus material winding shaft by bringing the outer periphery of the cut surplus material into pressure contact with the surplus material winding drive roller. In this state, the surplus material winding shaft is driven to rotate, and the cut surplus material is continuously wound into a roll shape. According to the cut-and-residue winding device for continuous label paper, winding can be performed without applying tension to the cut-and-residue, and breakage of the cut-and-residue can be suppressed (for example, refer to patent document 1).

Patent document 1: japanese patent application laid-open No. 2000-355459

Disclosure of Invention

However, when the cut area (i.e., the area of the predetermined shape) of the continuous label paper is large, the shape of the outer peripheral surface of the cut surplus wound around the surplus winding shaft is deformed. Therefore, according to the cut-and-residue winding device for continuous label paper of patent document 1, the cut-and-residue is brought into pressure contact with the residue winding-up roller in a state in which the outer peripheral surface of the cut-and-residue is deformed. Therefore, vibration may occur in the cut surplus.

Here, in general, when the cutting area of the continuous label paper is large, the area of the cut surplus becomes small. Therefore, the cut surplus material is likely to be broken by vibration, which hinders the improvement of the winding speed of the cut surplus material.

Accordingly, the present invention provides a cut surplus material winding device and a cut surplus material winding method for continuous label paper capable of suppressing breakage of the cut surplus material and improving winding speed of the cut surplus material.

In order to solve the above-described problems, one aspect of the present invention provides a cut surplus material winding device for continuous label paper, which conveys continuous label paper subjected to half-cut processing, and which includes a peeling roller for separating the continuous label paper into a cut product and cut surplus material to be adhered to a base paper, the device comprising: a residue winding shaft which is provided separately from the peeling roller and winds the cut residue into a roll shape; a moving mechanism capable of moving the surplus material winding shaft in a direction away from the peeling roller; a first detection unit provided in the conveyance path of the continuous tab sheet and configured to detect a conveyance amount of the continuous tab sheet; a second detecting unit that detects one rotation of the surplus material winding shaft; and a calculating unit that obtains a winding diameter of the cut surplus material wound around the surplus material winding shaft based on detection results of the first detecting unit and the second detecting unit every time the surplus material winding shaft rotates; based on the winding diameter obtained by the calculation unit, control is performed to move the surplus material winding axis in a direction away from the peeling roller.

In addition, the cut surplus material winding device for continuous label paper according to one aspect of the present invention may further include a tension adjusting portion provided on a driving side of the surplus material winding shaft, the tension adjusting portion adjusting tension applied to the cut surplus material.

In addition, the cut surplus material winding device for continuous label paper according to one aspect of the invention may further include a contact roller capable of abutting an outer peripheral surface of the cut surplus material wound around the surplus material winding shaft in accordance with the change in the winding diameter.

In one aspect of the present invention, there is provided a method for winding up cut surplus material of continuous label paper, which is carried out by carrying out half-cut processing, the continuous label paper being separated into a cut product and cut surplus material adhered to a base paper by a peeling roller, comprising: a residue winding step of winding the cut residue peeled from the backing paper on a residue winding shaft; a coil diameter calculation step of obtaining a coil diameter of the cut surplus material wound around the surplus material winding shaft; and a surplus material winding shaft moving step of moving the surplus material winding shaft in a direction away from the peeling roller when the winding diameter obtained in the winding diameter calculating step is larger than a preset lifting start winding diameter.

According to the cut surplus material winding device for continuous label paper of the present invention, the surplus material winding shaft can be moved in a direction away from the peeling roller based on the winding diameter of the cut surplus material wound around the surplus material winding shaft. Therefore, the gap between the outer peripheral surface of the cut surplus material wound around the surplus material winding shaft and the outer peripheral surface of the peeling roller can be kept small (including the case where the gap is zero). That is, the dimension of the discard path from the outer peripheral surface of the peeling roller to the outer peripheral surface of the cut discard can be kept small.

Thus, even when the predetermined shape of the cut product is a circular shape or an irregular shape other than a rectangle, the cut surplus can be prevented from breaking to the maximum extent by stabilizing the tension of the cut surplus generated during winding.

Further, by suppressing the size of the residue path from the outer peripheral surface of the peeling roller to the outer peripheral surface of the cut residue to be small, the cut residue can be suppressed from breaking even if a strong tensile force is applied to the cut residue as compared with the conventional art.

Further, by suppressing breakage of the cut surplus material, the speed of winding the cut surplus material around the surplus material winding shaft can be increased. Thus, the printing speed of the continuous label paper can be increased, and the productivity of the cut product can be greatly improved.

Further, by providing the tension adjusting portion on the driving side of the surplus material winding shaft, the tension applied to the cut surplus material by winding can be adjusted to be constant. This suppresses breakage of the cut surplus material due to tension fluctuation during winding, and enables winding of the cut surplus material in a stable state.

The contact roller is configured to be capable of abutting against the outer peripheral surface of the cut surplus material in accordance with the change in the winding diameter. Therefore, the entire outer peripheral surface of the cut surplus material can be flattened by the contact roller. This makes it possible to further appropriately maintain the gap between the outer peripheral surface of the cut surplus material wound around the surplus material winding shaft and the outer peripheral surface of the peeling roller. Therefore, the tension of the cut surplus material generated during winding can be stabilized further satisfactorily.

According to the cut surplus winding method of the continuous label paper of the present invention, the cut surplus is wound around the surplus winding shaft in the surplus winding process, and the winding diameter of the cut surplus is obtained in the winding diameter calculation process. In the surplus material winding shaft moving step, when the winding diameter obtained in the winding diameter calculating step is larger than a preset ascent start winding diameter, the surplus material winding shaft is moved in a direction away from the peeling roller.

Therefore, the gap between the outer peripheral surface of the cut surplus material wound around the surplus material winding shaft and the outer peripheral surface of the peeling roller can be kept small (including the case where the gap is zero). That is, the dimension of the discard path from the outer peripheral surface of the peeling roller to the outer peripheral surface of the cut discard can be kept small.

Drawings

Fig. 1 is a front view of a power source side of a cutting surplus material take-up device according to an embodiment of the invention.

Fig. 2 is an operation side front view showing a trimming residual coiling apparatus according to an embodiment of the present invention.

Fig. 3 is a perspective view showing a state in which a continuous label paper according to an embodiment of the present invention is separated into labels and cut remains.

Fig. 4 is a front view showing a winding mechanism according to an embodiment of the present invention.

Fig. 5 is a side view of the cut residue take-up device of fig. 1 in the V-direction view, showing an embodiment of the present invention.

Fig. 6 is a side view showing a winding mechanism according to an embodiment of the present invention.

Fig. 7 is a side view showing a state in which the surplus material winding shaft of fig. 5 is lowered downward in the cut surplus material winding device according to the embodiment of the invention.

Fig. 8 is an operation side front view showing a state before a cut surplus is wound around a surplus winding shaft in the cut surplus winding device according to the embodiment of the invention.

Fig. 9 is a side view showing a contact roller mechanism of a cut surplus material take-up device according to an embodiment of the invention.

Fig. 10 is an operation side front view illustrating a method of obtaining a winding diameter of a cut surplus coil in the cut surplus coil winding device according to the embodiment of the invention.

Fig. 11 is a front view showing the positional relationship among a residue winding shaft, a cut residue, and a fixed peeling roller of the cut residue winding device according to the embodiment of the present invention.

Fig. 12 is a diagram showing a timing of lifting a residue winding shaft of a trimming residue winding device according to an embodiment of the present invention.

Description of the reference numerals

10. Cutting residue coiling apparatus (continuous label paper cutting residue coiling apparatus)

12. Rack

14. Coiling mechanism

16. Up-down moving mechanism (moving mechanism)

18. Contact roller mechanism

21. Controller for controlling a power supply

22. Calculation unit

24. Control unit

30. Continuous label paper

31. Lining paper

32. Label substrate

34. Label (cutting products)

36. Cutting the residue

37. Cutting the leftover roll

47. Fixed stripping roller (stripping roller)

47a fixed stripping roller peripheral surface

Roll center of 47b fixed stripping roll

51. Residual material coiling shaft

51a center of the residual material take-up shaft

53. Powder clutch (tension adjusting part)

103. Contact roller

118. Third sensor (second detection part)

119. Linear encoder (first detecting part)

D cutting the coil diameter of the residue coil (cutting the coil diameter of the residue)

D1 Winding diameter at beginning of rising

Detailed Description

Embodiments of the present invention will be described below with reference to the drawings.

As shown in fig. 1 and 2, the cut surplus winding device 10 for continuous label paper includes a frame 12, a winding mechanism 14, a vertical movement mechanism (moving mechanism) 16, a contact roller mechanism 18, a detection unit 20, a calculation unit 22, and a control unit 24. Hereinafter, the cut surplus winding device 10 of the continuous label paper will be described as "cut surplus winding device 10".

As shown in fig. 2 and 3, in the cut surplus material winding device 10, the continuous label paper 30 is conveyed in the direction indicated by the arrow a. The continuous label paper 30 is formed by adhering the label base material 32 to the backing paper 31 via an adhesive layer (not shown). The label base 32 of the continuous label paper 30 is subjected to a printing step of printing characters or patterns on the upstream side in the conveying direction of the cut surplus material winding device 10 or on a printing section of a device provided on another production line.

After the printing step, in the processing step, half-cut processing of the cut product (hereinafter, referred to as a label) 34 is performed on the label base material 32 and the adhesive layer by a engraving or etching tool (i.e., a flexible die) or a laser beam. In the half-cut processing, the label base material 32 and the adhesive layer of the continuous label paper 30 are processed so that the cut edges are in a predetermined shape, and the backing paper 31 is not processed.

After the continuous label paper 30 is subjected to half-cutting processing of the labels 34, the cut surplus 36 is peeled from the base paper 31 of the continuous label paper 30 by a fixed peeling roller (peeling roller) 47. That is, the label base material 32 of the continuous label paper 30 is separated into the labels 34 attached to the base paper 31 and the cut surplus 36 peeled from the base paper 31 by the fixed peeling roller 47. The label 34 attached to the backing paper 31 is conveyed in the direction indicated by the arrow B. On the other hand, the cut surplus material 36 peeled from the backing paper 31 is stuck to the paper tube 64 of the surplus material winding shaft 51, and wound into a roll by rotation of the surplus material winding shaft 51.

Hereinafter, the cut surplus material 36 wound in a roll shape around the surplus material winding shaft 51 is referred to as "cut surplus material roll 37".

Next, the structure of the trimming residual winding device 10 will be described with reference to fig. 1 to 10.

As shown in fig. 1 and 5, a winding mechanism 14, a vertical movement mechanism 16, a contact roller mechanism 18, and a detection unit 20 are supported on a frame 12 of the cut surplus material winding device 10. A conveying roller 41, a pinch roller (or pinch roller) 42, and guide rollers 43 to 45 are rotatably supported on the frame 12. The conveying roller 41 nips and conveys the continuous label paper 30 together with a nip roller (or nip roller) 42.

The conveying roller 41, the pinch roller (or pinch roller) 42, and the guide rollers 43 to 45 are provided in this order from the upstream side of the conveying path of the continuous tab sheet 30, for example, to form the conveying path of the continuous tab sheet 30.

A fixed peeling roller 47 is rotatably supported by the frame 12. In addition, the frame 12 is formed with a relief hole 48. The escape hole 48 extends in the up-down direction so that the surplus material take-up shaft 51 can move in the up-down direction.

The winding mechanism 14 includes a surplus winding shaft 51, a powder clutch (tension adjusting unit) 53, and a first servo motor 55. The surplus material winding shaft 51, the powder clutch 53, and the first servo motor 55 are attached to the movable body 76 of the up-and-down movement mechanism 16.

The surplus material winding shaft 51 is rotatably supported via a bearing by an upper portion 85a of the first table 85 of the movable body 76. The surplus material take-up shaft 51 is provided on the vertical upper side with respect to the roller center 47b of the fixed peeling roller 47.

The surplus material winding shaft 51 is formed in a hollow shape having a circular cross section. A plurality of long holes (slits) 57 extending in the axial direction at the outer periphery are formed in the surplus material winding shaft 51. The first timing pulley 58 is coaxially mounted to the surplus material take-up shaft 51.

A rubber tube is elastically deformable and accommodated in the residual material winding shaft 51. A metal claw (hereinafter referred to as a lug) 62 is attached to the outer periphery of the rubber tube. The rubber tube is internally communicated with an air flow path. The air flow path communicates with an air supply source via a rotary joint 63.

The air supplied from the air supply source is filled into the rubber tube through the rotary joint 63 and the air flow path. Therefore, the rubber tube expands radially outward, and the lugs 62 protrude radially outward from the long holes 57 of the surplus material winding shaft 51. Here, a paper tube 64 (see fig. 2) is fitted to the surplus material winding shaft 51. Therefore, the lug 62 protruding from the long hole 57 of the residual material winding shaft 51 abuts against the inner surface of the paper tube 64, and the paper tube 64 is coaxially fixed to the residual material winding shaft 51.

In the present embodiment, an example in which the lug 62 protrudes radially outward by air pressure is described, but the present invention is not limited thereto. As another example, the lug 62 may be mechanically projected radially outward.

A rotation stop bracket 65 is attached to the housing of the rotary joint 63.

The rotation stopping bracket 65 is mounted to the second table 86 of the moving body 76. Therefore, the interlocking rotation of the housing of the rotary joint 63 can be suppressed by the rotation-stopping bracket 65.

As shown in fig. 4 to 6, a first servo motor 55 is connected to the surplus material winding shaft 51 via a powder clutch 53. The first servomotor 55 is mounted to a plate 83 at the lower part of the second table 86. The plate 83 is mounted to a lower portion of the second table 86.

Specifically, a plurality of first long holes 86a are formed in the lower portion of the second table 86 so as to extend in the up-down direction. The plate 83 is attached to the lower portion of the second table 86 by the first bolts 81 penetrating the plurality of first long holes 86 a. The first servomotor 55 is mounted to a lower portion of the second table 86 of the moving body 76 via a plate 83.

Accordingly, by loosening the first bolt 81 to move the plate 83 in the up-down direction, the first servomotor 55 can be moved in the up-down direction. That is, the first servo motor 55 can be adjusted in position in the up-down direction with respect to the powder clutch 53.

The second timing pulley 66 is coaxially mounted to the output shaft of the first servomotor 55.

A powder clutch 53 is disposed between the first servomotor 55 and the surplus winding shaft 51 on the second table 86. Here, a plurality of second long holes 86b are formed in an upper portion of the second table 86 so as to extend in the up-down direction. The second bolts 97 are configured to penetrate through the plurality of second long holes 86b and to be screwed into the pair of connecting members 87. By tightening the second bolts 97, the second table 86 can be fixed.

Therefore, by loosening the second bolts 97 and moving the second table 86 in the up-down direction, the powder clutch 53 can be moved in the up-down direction. That is, the powder clutch 53 can be vertically adjusted with respect to the surplus material winding shaft 51.

The powder clutch 53 is provided on the driving side of the surplus material winding shaft 51. The powder clutch 53 is generally used for, for example, the production of elongated objects, etc. The powder clutch 53 is a device that uses powder (magnetic iron powder) for torque transmission, and combines the smoothness of a fluid clutch and the high-efficiency connection of a friction plate clutch.

That is, by smoothly sliding the powder clutch 53, the tension fluctuation applied to the cut surplus 36 can be kept constant. Further, the setting torque of the powder clutch 53 can be changed stepwise according to the winding diameter D (see fig. 2) of the cut surplus material winding 37. Therefore, by providing the powder clutch 53 on the driving side of the residue winding shaft 51, the tension of the cut residue 36 applied to the cut residue roll 37 can be adjusted, and the fluctuation of the tension can be kept constant.

This can prevent the cut surplus material 36 from breaking due to the fluctuation of the tension applied to the cut surplus material 36.

As shown in fig. 2 and 3, in the present embodiment, the rotational speed of the surplus material winding shaft 51 is set to: when the winding diameter D of the cut surplus sheet roll 37 is the smallest (that is, when the winding diameter D is the diameter of the paper tube 64), the winding amount of the cut surplus sheet 36 is at least the same as or a constant value larger than the conveying amount of the continuous label paper 30 of the conveying path.

Therefore, the cut surplus 36 is wound around the surplus winding shaft 51 without being loosened. On the other hand, if the winding diameter D of the cut surplus material roll 37 becomes large, the winding amount of the cut surplus material 36 of the surplus material winding shaft 51 increases with respect to the conveying amount of the continuous label paper 30 of the conveying path. In this case, the tension applied to the cut surplus 36 increases, and therefore, the set torque of the powder clutch 53 (see fig. 6) is adjusted stepwise correspondingly.

As shown in fig. 2 and 5, tension is applied to the cut residue 36 of the cut residue roll 37.

The tension varies due to the change in the winding diameter D of the cut surplus winding 37, mechanical loss of the mechanical system, or torque variation during acceleration and deceleration of the first servo motor 55. Therefore, by providing the powder clutch 53 between the surplus winding shaft 51 and the first servo motor 55, the tension variation applied to the cut surplus 36 can be kept constant.

The powder clutch 53 is also configured to be able to change the set torque stepwise according to the winding diameter D of the cut surplus material roll 37 so as to correspond to the variation of the winding diameter D of the cut surplus material roll 37. That is, if the torque of the surplus material winding shaft 51 is constant, the tension applied to the cut surplus material 36 varies according to the variation of the winding diameter D of the cut surplus material roll 37. Therefore, by changing the setting torque of the powder clutch 53 stepwise according to the winding diameter D of the cut surplus winding 37, the fluctuation of the tension can be kept constant.

By providing the powder clutch 53 on the driving side of the surplus material winding shaft 51 in this way, the tension applied to the cut surplus material 36 by winding can be kept constant. This suppresses breakage of the cut surplus material 36 due to tension fluctuation during winding, and enables winding of the cut surplus material 36 in a stable state.

The setting torque of the powder clutch 53 can be changed on a monitor screen provided in the cut surplus winding device 10.

The powder clutch 53 is mounted on the upper part of the second table 86 of the moving body 76. The third timing pulley 68 is coaxially mounted to the input shaft of the powder clutch 53. The fourth timing pulley 69 is coaxially mounted on the output shaft of the powder clutch 53. The third timing pulley 68 is connected to a fourth timing pulley 69 via an input shaft and an output shaft of the powder clutch 53.

The second timing pulley 66 of the first servomotor 55 is connected to the third timing pulley 68 of the powder clutch 53 via a first timing belt 71. The first timing belt 71 appropriately adjusts the tension by unscrewing a plurality of first bolts 81 (refer to fig. 4) and moving the first servo motor 55 in the up-down direction.

The fourth timing pulley 69 of the powder clutch 53 is connected to the first timing pulley 58 of the surplus winding shaft 51 via a second timing belt 72. The second timing belt 72 appropriately adjusts the tension by unscrewing a plurality of second bolts 97 (refer to fig. 4) and moving the powder clutch 53 in the up-down direction.

In this state, by rotating the second timing pulley 66 with the first servomotor 55, the rotation of the second timing pulley is transmitted to the third timing pulley 68 of the powder clutch 53 via the first timing belt 71. By the rotation of the third timing pulley 68, the input shaft of the powder clutch 53 rotates.

By the input shaft rotation of the powder clutch 53, the output shaft of the powder clutch 53 rotates. By the rotation of the output shaft of the powder clutch 53, the fourth timing pulley 69 rotates. The rotation of the fourth timing pulley 69 is transmitted to the first timing pulley 58 via the second timing belt 72. By the rotation of the first timing pulley 58, the surplus material winding shaft 51 rotates in the winding direction of the cut surplus material 36. Thereby, the cut surplus material 36 is wound around the paper tube 64 of the surplus material winding shaft 51.

Here, the fourth timing pulley 69 and the first timing pulley 58 form the same number of teeth. Therefore, the rotational speed of the surplus winding shaft 51 becomes the same as the rotational speed of the output shaft of the powder clutch 53. The second timing pulley 66 of the output shaft of the first servomotor 55 and the third timing pulley 68 of the input shaft of the powder clutch 53 are formed with the same number of teeth as the fourth timing pulley 69 of the output shaft of the powder clutch 53.

By providing the powder clutch 53 between the surplus winding shaft 51 and the first servo motor 55 in this way, tension fluctuation applied to the cut surplus 36 can be kept constant by the powder clutch 53.

In addition, when the torque of the surplus material winding shaft 51 is kept constant, the tension applied to the cut surplus material 36 varies according to the variation in the winding diameter D of the cut surplus material roll 37. In order to correspond to the variation in the winding diameter D, the setting torque of the powder clutch 53 can be changed stepwise in accordance with the winding diameter D of the cut surplus material roll 37.

The connection of the first servomotor 55, the powder clutch 53, and the surplus winding shaft 51 is not limited to the configuration of the present embodiment. As long as the surplus winding shaft 51 and the first servo motor 55 are connected via the powder clutch 53.

The winding mechanism 14 is attached to the movable body 76 of the up-and-down movement mechanism 16.

As shown in fig. 1 and 5, the vertical movement mechanism 16 includes a pair of linear guides 75, a moving body 76, a pair of ball screws 77, a pair of driven gears 78, a pair of driving gears 79, and a second servo motor 82.

A pair of linear guides 75 are mounted on the frame 12 on either side of the relief hole 48. A pair of linear guides 75 extend in the up-down direction along the escape hole 48. The movable body 76 is supported by a pair of linear guides 75 so as to be movable in the up-down direction.

The movable body 76 includes a plurality of sliders 84, a first table 85, and a second table 86. The plurality of sliders 84 are supported to be movable by the pair of linear guides 75.

Specifically, for example, 2 sliders 84 are supported to be movable in the vertical direction with a gap therebetween, and the other slider 84 is supported to be movable in the vertical direction with a gap therebetween by the other linear guide 75.

A plurality of sliders 84 are mounted to a first table 85. The second table 86 is attached to the first table 85 via a connecting member 87.

That is, the plurality of sliders 84, the first table 85, the connecting member 87, and the second table 86 are integrally mounted. Therefore, the plurality of sliders 84, the first table 85, the connecting member 87, and the second table 86 are supported by the pair of linear guides 75 so as to be movable in the up-down direction. The winding mechanism 14 is mounted on the first table 85 and the second table 86. That is, the winding mechanism 14 is supported by the pair of linear guides 75 so as to be movable in the up-down direction via the movable body 76. A pair of ball screws 77 are provided on both sides of the moving body 76.

The pair of ball screws 77 are rotatably mounted on the frame 12 via upper and lower bearings 88 at positions farther from the escape hole 48 than the pair of linear guides 75, and are located on both sides of the moving body 76. A pair of ball screws 77 extend in the up-down direction along the escape holes 48. A nut (not shown) is rotatably supported by the pair of ball screws 77, and the nut is supported by the connection bracket 92. The connection bracket 92 is attached to the connection member 87 (see also fig. 4).

A pair of driven gears 78 are attached to lower end portions of the pair of ball screws 77. Specifically, one of the pair of driven gears 78 is mounted coaxially with one of the pair of ball screws 77. In addition, the other of the pair of driven gears 78 is mounted coaxially with the other of the pair of ball screws 77. The pair of driven gears 78 are bevel gears.

A pair of driving gears 79 are meshed with a pair of driven gears 78. That is, one of the pair of driving gears 79 is engaged with one of the pair of driven gears 78. In addition, the other of the pair of driving gears 79 is meshed with the other of the pair of driven gears 78.

The pair of drive gears 79 are bevel gears, and are coaxially attached near both ends of the rotation shaft 89. Both ends of the rotation shaft 89 are rotatably supported by the frame 12 via bearings 91. A fifth timing pulley 93 is coaxially mounted in the center of the rotation shaft 89. A second servo motor 82 is mounted below the rotation shaft 89.

The second servo motor 82 is mounted to the frame 12 via a mounting bracket 94. A sixth timing pulley 95 is coaxially mounted on the output shaft of the second servomotor 82. The sixth timing pulley 95 of the second servomotor 82 is connected to the fifth timing pulley 93 of the rotary shaft 89 via a third timing belt 96. By moving the second servo motor 82 in the up-down direction, the third timing belt 96 appropriately adjusts the tension.

In this state, by rotating the sixth timing pulley 95 with the second servomotor 82, the rotation of the sixth timing pulley is transmitted to the fifth timing pulley 93 of the rotary shaft 89 via the third timing belt 96. The pair of driving gears 79 rotates via the rotation shaft 89 by the rotation of the fifth timing pulley 93.

The pair of driven gears 78 rotate by rotation of the pair of driving gears 79.

The pair of ball screws 77 are rotated by the rotation of the pair of driven gears 78. The link bracket 92 (i.e., the moving body 76) moves in the up-down direction by the rotation of the pair of ball screws 77.

The winding mechanism 14 is attached to the first table 85 and the second table 86 of the movable body 76. The surplus material winding shaft 51 of the winding mechanism 14 moves in the up-down direction by the movement of the movable body 76 in the up-down direction.

As shown in fig. 5 and 7, the residue winding shaft 51 can be moved in the up-down direction (the arrow C direction) by the up-down movement mechanism 16, so that the residue winding shaft 51 can be moved in the up-down direction in accordance with the change in the winding diameter D of the cut residue roll 37. That is, the surplus material take-up shaft 51 can be moved by the up-and-down movement mechanism 16 in a direction away from the fixed peeling roller 47 or in a direction toward the fixed peeling roller 47.

As a result, the surplus material winding shaft 51 can be adjusted to a position close to a point where the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 do not contact each other, or a so-called tact position where the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 slightly contact each other.

A contact roller mechanism 18 (see fig. 6) is provided above the up-and-down movement mechanism 16 and the winding mechanism 14.

As shown in fig. 8 and 9, the touch roller mechanism 18 includes a rotary actuator 101, an arm 102, a touch roller 103, and a load block 104. In fig. 9, the contact roller 103 is shown in a state disposed above for convenience in order to facilitate understanding of the structure of the contact roller mechanism 18.

The rotary actuator 101 is mounted to the upper end 12a of the frame 12 via a support bracket 106. A center portion (hereinafter referred to as an arm center portion) 102a of the arm 102 is attached to a rotation support shaft 107 of the rotation actuator 101.

Accordingly, the arm 102 is forced in the direction of arrow E by the force of the rotary actuator 101. A contact roller 103 is attached to one end 102b of the arm 102.

That is, the contact roller mechanism 18 is a rotary contact roller mounted on the rotary support shaft 107 of the rotary actuator 101.

The contact roller 103 includes a roller shaft 108 attached to one end 102b of the arm 102, and a roller body 112 supported by the roller shaft 108. The base end 108a of the roller shaft 108 is attached to one end 102b of the arm 102. The roller shaft 108 extends in a direction intersecting (specifically, orthogonal to) the arm 102. The roller body 112 is rotatably mounted coaxially with the roller shaft 108 via a bearing 109.

A load block 104 is mounted on the other end 102c of the arm 102. The weight 104 is supported in such a manner as to be movable along the arm 102 by unscrewing the adjusting bolt 114. Thus, the mounting position of the weight 104 can be adjusted.

By attaching the load block 104 to the other end 102c of the arm 102, the balance with the force of the rotary actuator 101 is maintained. Accordingly, the contact force of the contact roller 103 (i.e., the roller body 112) to the outer peripheral surface 36a of the cut surplus material roll 37 can be appropriately adjusted.

The arm 102 is rotatably supported about a rotation support shaft 107. Accordingly, the contact roller 103 can be moved in accordance with the winding diameter D of the cut surplus material roll 37. That is, the outer peripheral surface 36a of the cut surplus material roll 37 can be brought into contact with the roll diameter D of the cut surplus material roll 37.

Here, the rotation angle of the rotation support shaft 107 of the rotation actuator 101 is set so that the contact roller 103 can rotate to the rotation angle of the arm 102 when the winding diameter D of the cut surplus material roll 37 becomes the maximum diameter.

The contact roller 103 can adjust the air pressure by a regulator provided in the air duct path. For example, by adjusting the air pressure of the regulator to 0.0 to 0.1MPa, the contact pressure of the contact roller 103 can be arbitrarily changed according to the type of the continuous label paper 30 (see fig. 3), the cutting area, and other conditions.

That is, the contact roller 103 is adjusted to be in contact with the outer peripheral surface 36a of the cut surplus material roll 37 by a minute pressure that does not generate vibration. By applying a minute pressure that does not generate vibration to the outer peripheral surface 36a of the cut surplus material roll 37, it is possible to prevent the winding of the cut surplus material 36 in winding to the surplus material winding shaft 51 from being disordered or prevent air from being excessively introduced between the layers of the wound cut surplus material 36. That is, the roll shape of the cut surplus material roll 37 can be appropriately corrected by the contact roller 103.

By correcting (correcting) the roll shape of the cut residual roll 37 by the contact roller 103, the irregularities of the outer peripheral surface 36a of the cut residual roll 37 can be made uniform to some extent. This can suppress tension fluctuation due to the irregularities on the outer peripheral surface 36a of the cut surplus material roll 37 to some extent.

Further, the irregularities on the outer peripheral surface 36a of the cut surplus material roll 37 are made uniform. Accordingly, even when the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 are in contact with each other, the occurrence of vibration due to pressure contact between the irregularities of the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 can be prevented.

In this way, the contact roller 103 can be brought into contact with the outer peripheral surface 36a of the cut surplus material roll 37 in accordance with the change in the roll diameter D of the cut surplus material roll 37. Therefore, the entire outer peripheral surface 36a of the cut surplus material roll 37 can be flattened by the contact roller 103. This makes it possible to appropriately maintain the gap r between the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47. Therefore, the tension of the cut surplus material 36 generated during winding up to the surplus material winding shaft 51 can be stabilized well.

Here, the rotation fixing portion 105 is provided, and when the contact roller 103 is not used, the rotation fixing portion 105 fixes the contact roller 103 to the frame 12 so as not to rotate. The rotation fixing portion 105 has a fixing pin 123 and a chain 124. The fixing pin 123 is connected to the frame 12 via a chain 124. Further, an attachment hole 102d is formed on the side of one end 102b of the arm 102. When the contact roller 103 is not used, the fixing pin 123 is inserted into the mounting hole 102d. Accordingly, the chain 124 is stretched, and the contact roller 103 can be fixed to the frame 12 against the urging force of the rotary actuator 101.

In the present embodiment, an example of a rotation unit using the rotation actuator 101 as the arm 102 is described, but the present invention is not limited thereto. As another example, a rubber damper or the like may be used.

As shown in fig. 4 and 6, the detection unit 20 includes a first sensor 116, a second sensor 117, a third sensor (second detection unit) 118, and a linear encoder (first detection unit) 119 (see fig. 8).

The first sensor 116 is mounted to the upper portion 12b of the housing 12 via a first mounting bracket 127. The first sensor 116 detects the detection patch 128. The detection piece 128 is attached to the end 85c of the side surface 85b of the first table 85. The first sensor 116 detects the detection piece 128, and thereby determines the upper limit of the first table 85 (i.e., the movable body 76) that moves in the up-down direction.

The second sensor 117 is attached to the lower portion 12c of the frame 12 than the upper portion 12b via a second attachment bracket 129. The second sensor 117 detects the detection piece 128. The second sensor 117 detects the detection piece 128, and determines the lower limit of the first table 85 (i.e., the movable body 76) that moves in the up-down direction.

Here, the mounting positions or detection positions of the first sensor 116 and the second sensor 117, and the number of the first sensor 116 and the second sensor 117 are not limited to the embodiment. For example, the first sensor 116 and the second sensor 117 may be mounted from the front side of the first table 85. Further, a long hole may be provided on the front surface of the slider 84 by the length of the maximum movement amount +α, and 1 sensor may be provided on the front surface side of the slider 84. The side surface 85b of the first table 85 may be cut off stepwise in the upper and lower end direction, and the convex state may be determined by a sensor provided at one position with the movement amount +α.

The third sensor 118 is mounted on a bracket 121 on the output shaft side of the powder clutch 53. Specifically, a plate 122 is attached to the output shaft side of the powder clutch 53. An end 121a of the bracket 121 is mounted on the lower end portion of the plate 122. A third sensor 118 is mounted at the other end 121b of the bracket 121.

A rotor 132 is coaxially provided on the fourth timing pulley 69 of the output shaft of the powder clutch 53, and a detection piece 133 is provided on the outer periphery of the rotor 132.

Here, the fourth timing pulley 69 of the output shaft of the powder clutch 53 and the first timing pulley 58 of the surplus material take-up shaft 51 form the same number of teeth. That is, the rotation speed of the rotating body 132 (i.e., the detection piece 133) becomes the same as the rotation speed of the surplus material take-up shaft 51. Therefore, by detecting the detection piece 133 by the third sensor 118, one rotation of the surplus material winding shaft 51 can be detected.

Hereinafter, a pulse signal indicating the rotational speed of the surplus material winding shaft 51 is referred to as a "winding pulse".

Here, the mounting positions of the third sensor 118 and the detection piece 133 are not limited to the example of the present embodiment. As another attachment position, for example, the third sensor 118 and the detecting piece 133 may be attached to the power source side of the chassis 12 at the same rotation position as the surplus winding shaft 51. The third sensor 118 and the detecting piece 133 may be attached to a position where the pulse is emitted from the third sensor 118 once every one revolution of the surplus winding shaft 51.

As shown in fig. 1 and 10, a third servo motor (not shown), a conveying roller 41, a pinch roller (or pinch roller) 42, and guide rollers 43 to 45 for conveying the continuous tab sheet 30 are provided on the conveying path of the continuous tab sheet 30. A linear encoder 119 is provided with the third servomotor.

The linear encoder 119 is a rotary encoder connected to the conveyance path (specifically, the conveyance roller 41) of the continuous tab sheet 30. The linear encoder 119 emits a pulse signal corresponding to the conveyance amount of the continuous label paper 30. That is, the linear encoder 119 detects the conveyance amount of the continuous tag paper 30. Hereinafter, a pulse signal corresponding to the conveyance amount is referred to as a "conveyance pulse".

Here, by detecting the conveyance pulse of the linear encoder 119 in response to the winding pulse per one revolution of the surplus-material winding shaft 51, the winding diameter D of the cut surplus-material roll 37 can be calculated from the conveyance amount of the continuous label paper 30.

The positions of the conveying roller 41, the pinch roller (or pinch roller) 42, the guide rollers 43 to 45, and the linear encoder 119 are not limited to the positions in the figure.

Based on the winding pulse and the conveyance pulse amount, the calculation unit 22 obtains the winding diameter D of the cut surplus material roll 37. That is, the calculating unit 22 can calculate the winding diameter D of the cut surplus winding 37 from the amount of the conveyance pulse from the linear encoder 119 corresponding to the winding pulse emitted from the third sensor 118 every one rotation of the surplus winding shaft 51.

Next, a method of obtaining the winding diameter D of the cut surplus material winding 37 by the calculation unit 22 will be described with reference to fig. 10.

As shown in fig. 10, if the winding diameter of the cut surplus material roll 37 is set to D, the feeding amount of the continuous label paper 30 (i.e., the circumference of the cut surplus material 36 wound up) when the surplus material winding shaft 51 rotates one turn is set to L,

d=l/pi … (1).

On the other hand, the first conveying roller 41 and the linear encoder 119 having a winding diameter d are provided on the conveying path of the continuous label paper 30.

Let n be the number of conveyance pulses emitted from the linear encoder 119 when the first conveyance roller 41 rotates one turn. When the continuous label paper 30 is conveyed by a distance pi d, a conveyance pulse emits n pulses from the linear encoder 119. Accordingly, the feeding amount of the continuous tab sheet 30 corresponding to one feeding pulse issued by the linear encoder 119 becomes pi d/n.

Here, if the number of transmission pulses of the transmission pulse of the linear encoder 119 when the surplus material take-up shaft 51 rotates one turn is set to N,

l=pi dN/n … (2).

By substituting formula (2) into formula (1),

d=dn/n … (3) can be obtained.

The winding diameter d and the number n of pulses to be sent by the linear encoder 119 are known values. This allows the winding diameter D of the cut surplus winding 37 to be obtained from the number N of conveying pulses emitted from the linear encoder 119.

Next, an example in which the control unit 24 raises the surplus material winding shaft 51 will be described with reference to fig. 3, 11, and 12.

As shown in fig. 3, the peeled cut surplus 36 is cut out by the label 34 to be in a hollow state. Therefore, when the surplus material is wound around the surplus material winding shaft 51, if the tension applied to the cut surplus material 36 varies, breakage is likely to occur. Here, the tag 34 is not limited to a single quadrangle. In particular, when the predetermined shape of the label 34 is a circular shape or an irregular shape other than a rectangular shape, if the tension of the cut surplus material 36 varies, the cut surplus material 36 is likely to break. In fig. 3, the label 34 is illustrated as a quadrangle for the sake of easy understanding of the structure.

For example, when the surplus material path is long, the cut surplus material 36 of the label 34 is easily broken at a portion where the shrinkage in the width direction of the cut surplus material 36 becomes large and the load is concentrated, or at a portion where the winding diameter of the cut surplus material roll 37 becomes large and the tension applied to the cut surplus material 36 becomes large.

Here, the residue path is a section from when the cut residue 36 is peeled off the backing paper 31 to when the cut residue reaches the residue winding shaft 51.

On the other hand, it is considered that the outer peripheral surface 36a of the cut surplus material roll 37 is held in a state of being pressed against the outer peripheral surface 47a of the fixed peeling roller 47. In this state, it is considered that winding unevenness such as the uneven shape of the outer peripheral surface 36a of the cut surplus material roll 37 is a cause of variation in the winding diameter D from place to place of the cut surplus material 36 of the cut surplus material roll 37. Further, it is also conceivable that the cut surplus material roll 37 is wound eccentrically with respect to the paper tube 64, or vibration is generated. As a result of these conditions, the tension applied to the cut trim 36 will vary and the cut trim 36 may fracture.

As described above, the position of the surplus material take-up shaft 51 is preferably located at a position where the surplus material path is always short and no take-up unevenness occurs. Therefore, in the cut surplus material winding device 10 of the present embodiment, the position of the surplus material winding shaft 51 is determined to be close to the position where the outer peripheral surface 36a of the cut surplus material roll 37 does not contact the outer peripheral surface 47a of the fixed peeling roller 47. Alternatively, the position of the surplus material winding shaft 51 is determined at a position that becomes a so-called tact positional relationship in which the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 slightly contact.

Here, by applying tension to the cut surplus material 36, the cut surplus material 36 contracts in the width direction.

For example, in the case where the cut surplus material 36 is cut into a lattice shape, the cut surplus material 36 has a conveying direction belt-like portion 361 and a width direction belt-like portion 362. The conveyance direction belt-like portion 361 of the cut surplus material 36 is wound around the surplus material winding shaft 51 in a state of being contracted in the width direction by tension and extending in the conveyance direction. In this case, the width-direction belt-shaped portion 362 of the lattice-shaped cut surplus material 36 is wound around the surplus material winding shaft 51 in a state of being relaxed and suspended with respect to the conveying-direction belt-shaped portion 361 without applying tension.

Therefore, the winding diameter D (see fig. 2) of the width-direction belt-shaped portion 362 of the cut surplus material roll 37 becomes larger than the winding diameter D of the conveying-direction belt-shaped portion 361. Therefore, the contact roller 103 (see fig. 2) is provided so that the winding diameter D of the widthwise belt-shaped portion 362 of the cut surplus material roll 37 and the winding diameter D of the conveyance-direction belt-shaped portion 361 of the cut surplus material roll 37 have the same diameter.

Thus, the position of the surplus material winding shaft 51 can be determined to be close to the position of the fixed peeling roller 47 to such an extent that the outer peripheral surface 36a of the cut surplus material roll 37 does not come into contact with the outer peripheral surface 47a of the fixed peeling roller 47. Alternatively, the position of the surplus material winding shaft 51 may be determined so as to be a position in which the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 slightly come into contact with each other, which is called a tact position.

As shown in fig. 11, the interval r between the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 is generally set in the range of 0.0 to 5.0 mm. The setting of the interval r may be changed according to the roll shape of the cut surplus material roll 37, and the interval r may be set to 5.0mm or more. The initial position of the surplus material winding shaft 51 is the position indicated by the state (a) in fig. 11. The initial position of the discard winding shaft 51 is a position of the discard winding shaft 51 in a state where the cut discard 36 of the label 34 is not wound on the paper tube 64 fixed to the discard winding shaft 51.

Returning to fig. 3, the distance r (see fig. 11) is set to a distance from the fixed peeling roller 47 to a point where the outer peripheral surface 64a of the paper tube 64 fixed to the surplus material winding shaft 51 does not contact the outer peripheral surface 47a of the fixed peeling roller 47. Therefore, after the fixed peeling roller 47 peels the cut surplus 36 from the interleaving paper 31, the cut surplus 36 is immediately wound around the paper tube 64 fixed to the surplus winding shaft 51. The wound-up cut trim 36 is integrated with the trim take-up spool 51 (i.e., paper tube 64) through the adhesive face of the trim 36.

This makes it possible to suppress the distance of the surplus material path of the cut surplus material 36 conveyed as a single body to be short, and to wind up the cut surplus material 36 without breaking.

Next, a cut-and-residue winding method for suppressing the distance of the residue path of the cut residue 36 conveyed in a single body to a short length will be described with reference to fig. 11.

As shown in the state (a) of fig. 2 and 11, first, the axial position P of the surplus material winding shaft 51 is set so that the distance r between the outer peripheral surface 64a of the paper tube 64 and the outer peripheral surface 47a of the fixed peeling roller 47 is set to be close to a distance to the extent that the outer peripheral surface 64a and the outer peripheral surface 47a do not come into contact. (specifically, the interval r is generally set to a range of 0.0 to 5.0 mm.) the axis position P represents the distance between the outer peripheral surface 47a of the fixed peeling roller 47 and the center 51a of the surplus material winding axis 51.

As shown in the state (B) of fig. 2 and 11, when the continuous label paper 30 starts to be conveyed, the surplus winding shaft 51 rotates in the surplus winding process. The cut surplus 36 peeled from the backing paper 31 (see fig. 3) is wound around the paper tube 64 of the surplus winding shaft 51 by the rotation of the surplus winding shaft 51.

In the winding diameter calculation step, the winding diameter D of the cut surplus coil 37 is obtained based on the winding pulse signal from the third sensor 118 (see fig. 1) and the conveyance pulse signal from the linear encoder 119. The third sensor 118 detects one revolution of the surplus-material take-up shaft 51. The linear encoder 119 detects the conveyance amount of the continuous tab sheet 30.

Next, the calculated winding diameter D is stored in the calculating unit 22 in the controller 21. The winding diameter D stored in the calculating unit 22, which is increased by an increase amount of an arbitrarily set radial dimension, is set in advance as a "start-of-rising winding diameter D1" of the cut surplus material roll 37.

As shown in the state (C) of fig. 2 and 11, in the conveyance of the continuous label paper 30, the winding diameter D of the cut surplus winding 37 is calculated by each calculation from the conveyance pulse amount of the linear encoder 119 output for each rotation of the surplus winding shaft 51.

In the surplus material winding shaft moving step, the obtained winding diameter D of the cut surplus material roll 37 is compared with the "ascent start winding diameter D1". When the comparative winding diameter D is larger than the "ascent start winding diameter D1", the second servo motor 82 (see fig. 1) of the up-and-down movement mechanism 16 is driven based on a signal from the control unit 24.

By rotating the sixth timing pulley 95 with the second servomotor 82, the rotation of the sixth timing pulley is transmitted to the fifth timing pulley 93 of the rotary shaft 89 via the third timing belt 96. By the rotation of the fifth timing pulley 93, the pair of driving gears 79 are rotated via the rotation shaft 89.

The pair of driven gears 78 rotate by the rotation of the pair of driving gears 79.

The pair of ball screws 77 rotate by the rotation of the pair of driven gears 78. The link bracket 92 (i.e., the moving body 76) moves in the up-down direction by the rotation of the pair of ball screws 77.

The winding mechanism 14 is attached to the first table 85 and the second table 86 of the movable body 76. The movable body 76 moves in the up-down direction to raise the surplus material take-up shaft 51 to the shaft position P, and raise the surplus material take-up shaft of the surplus material take-up shaft 51 by an arbitrarily set surplus material take-up shaft raising setting value. That is, the surplus material take-up shaft 51 is moved in a direction away from the fixed peeling roller 47.

As a result, as shown in the state (C) of fig. 11, the distance r between the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 becomes close to the distance from the fixed peeling roller 47 to the extent that the outer peripheral surface 36a of the cut surplus material roll 37 does not come into contact with the outer peripheral surface 47a of the fixed peeling roller 47.

After the rising operation of the surplus material winding shaft 51 is completed, the winding diameter D of the cut surplus material winding drum 37 is calculated again by the same method. By rewriting the winding diameter D in the calculating section 22, a new "start winding diameter D1" of the surplus winding shaft 51 is defined. The surplus material winding shaft 51 is raised based on a signal from the control unit 24 in the same manner as described above.

That is, the control unit 24 controls the up-and-down movement mechanism 16 based on the winding diameter D obtained by the calculation unit 22, and moves the surplus material winding shaft 51 in a direction away from the fixed peeling roller 47 or in a direction toward the fixed peeling roller 47.

Next, an example in which the control unit 24 moves the surplus material take-up shaft 51 in a direction away from the fixed peeling roller 47 will be described in detail with reference to fig. 11 and 12.

The states (a), (B), and (C) in fig. 11 are front views showing the positional relationship of the residue winding shaft 51, the cut residue roll 37, and the fixed peeling roller 47 at the time A, B, C in fig. 12. Fig. 12 is a diagram showing an example of the timing of the ascent of the surplus material winding shaft 51 in the case of performing the winding operation of the cut surplus material.

In fig. 11, the interval r represents the distance between the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47, or the distance between the outer peripheral surface 64a of the paper tube 64 and the outer peripheral surface 47a of the fixed peeling roller 47. As described above, the shaft position P represents the distance between the outer peripheral surface 47a of the fixed peeling roller 47 and the center 51a of the surplus material winding shaft 51.

As shown in state (a) of fig. 11 and fig. 12, the paper tube 64 is formed to have a smaller tube diameter than the rising start winding diameter D1 at the time of the revolution speed a (a=0) of the surplus material winding shaft 51. For example, the diameter of the paper tube 64 is set to 100mm. Therefore, a gap r is maintained between the outer peripheral surface 64a of the paper tube 64 and the outer peripheral surface 47a of the fixed peeling roller 47. Thus, the paper tube 64 wound around the residual material winding shaft 51 is cut while the residual material winding shaft 51 is not lifted.

As shown in fig. 11 (B) and 12, the paper tube 64 wound around the residue winding shaft 51 winds the cut residue 36, whereby the winding diameter D of the cut residue roll 37 increases. At the same time, the interval r between the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 becomes smaller.

When the surplus material winding shaft 51 reaches the rotation speed B, the winding diameter D of the cut surplus material roll 37 exceeds the "ascent start winding diameter D1".

The surplus material take-up shaft 51 starts to rise. During the ascent of the residual material winding shaft 51, the cut residual material 36 continues to be wound around the residual material winding shaft 51. By continuing winding the cut surplus material 36 onto the paper tube 64 of the surplus material winding shaft 51, the winding diameter D of the cut surplus material roll 37 becomes larger. In this state, the surplus material winding shaft 51 rises. Accordingly, the interval r between the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 increases toward the preset surplus material take-up shaft rising setting value.

As shown in the state (C) of fig. 11 and fig. 12, the value of the elevation of the surplus material take-up shaft 51 reaches a preset surplus material take-up shaft elevation setting value (for example, 5.0 mm) at the time of the rotation speed C of the surplus material take-up shaft 51. Therefore, the residual material winding shaft 51 stops rising. The winding diameter D at which the increase in the radial dimension (for example, 3.0 mm) is arbitrarily set when the winding diameter D stops rising to the surplus winding shaft 51 is defined as a new rising start winding diameter D1. Then, the cut surplus material 36 is wound up without lifting the surplus material winding shaft 51 until the winding diameter D reaches the lifting start winding diameter D1.

As described above, the operations of the states (a) to (C) are sequentially repeated, and thus, the interval r between the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 is set to be in the range of 0.0.ltoreq.r.ltoreq.5.0 mm.

Therefore, the position close to the fixed peeling roller 47 to the extent that the outer peripheral surface 36a of the cut surplus material roll 37 does not contact with the outer peripheral surface 47a of the fixed peeling roller 47 or the position slightly contacting with it can be maintained. This can maintain stable winding of the cut surplus material 36 without breaking the cut surplus material 36.

In this way, the residue winding shaft 51 can be moved in a direction away from the fixed peeling roller 47 or in a direction toward the fixed peeling roller 47 based on the winding diameter D of the cut residue roll 37. Therefore, the distance r between the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 can be suppressed to be small (including the case where the distance r is zero). That is, the size of the discard path from the outer peripheral surface 47a of the fixed peeling roller 47 to the outer peripheral surface 36a of the cut discard roll 37 can be suppressed to be small.

Thus, even when the predetermined shape of the label 34 is a circular shape or an irregular shape other than a rectangle, the cut surplus 36 can be prevented from breaking to the maximum extent by stabilizing the tension generated in the cut surplus 36 during winding.

Further, by suppressing the size of the residue path from the outer peripheral surface 47a of the fixed peeling roller 47 to the outer peripheral surface 36a of the cut residue roll 37 to be small, the occurrence of breakage of the cut residue 36 can be suppressed even if a strong tensile force is applied to the cut residue 36 as compared with the conventional art.

Further, by suppressing breakage of the cut surplus 36, the printing speed of the continuous label paper 30 can be increased. As a result, the productivity of the tag 34 can be greatly improved.

In the present embodiment, the increase in the radial dimension is set to 3.0mm and the surplus material take-up shaft elevation setting value is set to 5.0mm, but the increase in the radial dimension and the surplus material take-up shaft elevation setting value are not limited to 3.0mm and 5.0mm. That is, the elevation of the surplus material winding shaft 51 is controlled so that the distance r between the outer peripheral surface 64a of the paper tube 64 fixed to the surplus material winding shaft 51 by the lug 62 or the outer peripheral surface 36a of the cut surplus material roll 37 and the outer peripheral surface 47a of the fixed peeling roller 47 is kept within a certain range.

As another example, for example, the thickness dimension of the continuous label paper 30 is measured before the start of winding, and the setting value of the residual winding shaft rise can be changed based on this value. The value may be changed according to the type of the continuous label paper 30 or the winding speed.

The up-and-down movement mechanism 16 of the surplus material winding shaft 51 may not only perform the automatic operation at the time of operation as in the present embodiment, but may also manually move the surplus material winding shaft 51 up and down during, for example, the stop of the winding operation. The manual operation of the residual material winding shaft 51 is used, for example, when the cut residual material roll 37 reaches the maximum roll diameter and the cut residual material roll is detached from the residual material winding shaft 51.

The preferred embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the above embodiments. The shapes, combinations, and the like of the respective constituent members shown in the above-described embodiments are examples, and various modifications can be made based on design requirements and the like without departing from the scope of the present invention.

For example, in the above embodiment, the pair of linear guides 75 and the moving body 76 are moved in the up-down direction by the pair of ball screws 77, but the moving method of the moving body 76 is not limited to the above embodiment. As another example, for example, trapezoidal threads or the like may be used instead of the pair of ball screws 77. In addition, the number of ball screws 77 or trapezoidal threads is preferably set to one pair in terms of positional accuracy, durability, and the like, but may be set to 1.

In the above embodiment, the powder clutch 53 was exemplified as the tension adjusting unit, and the case where the tension fluctuation of the cut surplus material 36 applied to the cut surplus material roll 37 is kept constant by the powder clutch 53 was described, but the present invention is not limited thereto. As the other tension adjusting portion, another clutch or the like having a function of changing the set torque stepwise while sliding smoothly may be used.

In the above embodiment, the linear encoder 119 as the first detecting unit for detecting the conveyance amount of the continuous label paper 30 has been described by taking a rotary encoder as an example, but the present invention is not limited thereto.

In the above embodiment, the example in which the control unit 24 moves the surplus material winding shaft 51 based on the winding diameter D obtained by the calculation unit 22 has been described, but the present invention is not limited thereto. As another example, the surplus material winding shaft 51 may be manually moved based on the winding diameter D obtained by the calculating section 22.

In the above embodiment, the fixed peeling roller 47 is exemplified as the peeling roller, but the present invention is not limited thereto. As another example, the peeling roller may be a movable peeling roller.

In the above embodiment, the example in which the surplus material take-up shaft 51 is provided on the upper side in the vertical direction with respect to the roller center 47b of the fixed peeling roller 47 has been described, but the present invention is not limited thereto. As another example, the surplus material take-up shaft 51 may be provided in other directions such as obliquely above the fixed peeling roller 47, and in the lateral direction of the fixed peeling roller 47.

Claims

1. A cutting residue coiling device for continuous label paper, which conveys the continuous label paper subjected to half-cutting processing and is provided with a stripping roller for separating the continuous label paper into a cutting product stuck on lining paper and a cutting residue, characterized by comprising the following components:

a residue winding shaft which is provided separately from the peeling roller and winds the cut residue into a roll shape;

a moving mechanism capable of moving the surplus material winding shaft in a direction away from the peeling roller during winding of the cut surplus material by the surplus material winding shaft;

a first detection unit provided in the conveyance path of the continuous tab sheet and configured to detect a conveyance amount of the continuous tab sheet;

a second detecting unit that detects one rotation of the surplus material winding shaft;

a calculation unit that obtains a winding diameter of the cut surplus material wound around the surplus material winding shaft based on detection results of the first detection unit and the second detection unit every time the surplus material winding shaft rotates;

and a control unit that controls the movement of the sweep winding shaft in a direction away from the peeling roller based on the winding diameter obtained by the calculation unit so that the outer peripheral surface of the cut sweep wound around the sweep winding shaft is kept at a position close to the peeling roller or at a light contact position slightly contacting the peeling roller so as not to contact the outer peripheral surface of the peeling roller.

2. The cut residue winding device for continuous label paper according to claim 1, wherein,

the device further comprises a tension adjusting part which is arranged at the driving side of the residual material coiling shaft and is used for adjusting the tension applied to the cutting residual material.

3. A cut surplus winding apparatus for continuous label paper as claimed in claim 1 or 2,

and a contact roller capable of abutting against the outer peripheral surface of the cut surplus material wound around the surplus material winding shaft in accordance with the change in the winding diameter.

4. A cut surplus winding method of a continuous label paper, which carries out a half-cut process, for separating the continuous label paper into a cut product and a cut surplus adhered to a base paper by a peeling roller, characterized by comprising:

a residue winding step of winding the cut residue peeled from the backing paper on a residue winding shaft;

a coil diameter calculation step of obtaining a coil diameter of the cut surplus material wound around the surplus material winding shaft;

a surplus material winding shaft moving step of moving the surplus material winding shaft in a direction away from the peeling roller when the winding diameter obtained in the winding diameter calculating step is larger than a preset rising start winding diameter, thereby maintaining a position close to the peeling roller so as not to contact the outer peripheral surface of the peeling roller or a lightly touched position slightly contacting the peeling roller,

And simultaneously executing the residual material coiling process and the residual material coiling shaft moving process.