WO2010041350A1

WO2010041350A1 - Reel device

Info

Publication number: WO2010041350A1
Application number: PCT/JP2008/072486
Authority: WO
Inventors: 勝男富田
Original assignee: 株式会社サトー; 株式会社サトー知識財産研究所
Priority date: 2008-10-10
Filing date: 2008-12-11
Publication date: 2010-04-15
Also published as: JP5183412B2; JP2010089949A

Abstract

Rotation of a supporting plate is stabilized by reducing the inertial moment of the supporting plate when the diameter of a sheet roll is decreased. A reel device comprises a boss (21) provided on a rotating shaft (20) and fitted by being inserted into a sheet roll (DR); a supporting plate (30) abutting against one side face (DRa) on the machine base side of the sheet roll (DR) on the axial inside of the boss (21); and a retaining member (22) abutting against the other side face (DRb) of the sheet roll (DR). The supporting plate (30) is provided with an inner plate (31) which is set to have a predetermined diameter and having an inner abutting surface (32); and an outer plate (35), which is provided closer to the machine base side than the inner plate (31), has a diameter larger than that of the inner plate (31) and has an outer abutting surface (36), which faces the outside of the outer circumference of the inner plate (31) in the diameter direction and is flush with the inner abutting surface (32) of the inner plate (31). The inner plate (31) is fixed to the rotating shaft (20) to rotate together and the outer plate (35) is fixed rotatably to the rotating shaft (20).

Description

Reel equipment

The present invention relates to a reel device used in a label supply device or the like that supplies, for example, a belt-like mount on which a label is temporarily attached as a belt-like paper, and in particular, rotates a paper roll having a through-hole around the belt-like paper. The present invention relates to a reel device that supplies belt-like paper.

Generally, as this type of reel device, for example, as shown in FIG. 5, there is a device used in a label supply device that supplies a strip-shaped mount D temporarily attached with a label L as a strip-shaped paper. The belt-like mount D is a paper roll DR wound with a through hole Da at the center. The label supply device is temporarily attached to the belt mount D by folding back the belt mount D supplied from the machine base 200, the reel device 202 holding the roll DR of the belt mount D temporarily attached with the label L, and the reel device 202. A peeling member 203 that peels off the label L, a thermal print head 204 that prints on the label L that is provided upstream of the peeling member 203 and is temporarily attached to the belt-like mount D, and the print head 204 removes the belt-like mount D. And a take-up reel 206 for winding the belt-like mount D from which the label L has been peeled off (for example, Japanese Patent Laid-Open No. 2006-282221 (Patent Document 1). ) Etc.). *

Conventionally, for example, as shown in FIG. 6, the reel device 202 protrudes from the machine base 200 and is provided so as to be rotatable with respect to the machine base 200. 210 and a boss 211 that is fitted in a through hole (not shown) of the paper roll DR, and is provided on the rotary shaft 210 so as to move in the axial direction and move with the rotary shaft 210. A support plate 213 having an abutment surface 212 that abuts one side surface of the roll DR on the machine base 202 side, and provided on the rotary shaft 210 so as to be axially outer than the boss 211 and to move with the rotary shaft 210. And a pressing member 214 that abuts against the other side surface of the paper roll DR (see, for example, JP-A-2005-280820 (Patent Document 2) and the like). *

As shown in FIG. 5, when the label supply device is operated, the platen member 205 and the take-up reel 206 are rotated to convey the belt-like mount D, and thereby the belt-like mount D is pulled. The rotary shaft 210 of 202 rotates, and the belt-like mount D is pulled out from the paper roll DR. When the label L temporarily attached to the belt-like mount D reaches the print head 204, printing is performed on the label L by the print head 204, and then the belt-like mount D is folded back by the peeling member 203. The temporarily attached label L is peeled off, and the belt-like mount D is taken up by the take-up reel 206. *

JP 2006-282221 A Japanese Patent Laying-Open No. 2005-280820

However, in this conventional reel device 202, the rotary shaft 210 rotates and the belt-like mount D is pulled out from the paper roll DR. As the belt-like mount D is pulled out, the paper roll DR gradually increases its diameter. Accordingly, the contact surface 212 of the support plate 213 is exposed. For this reason, if the force for pulling the belt-like mount D is constant, the moment of inertia of the paper roll DR decreases as the diameter of the paper roll DR gradually decreases, but the moment of inertia of the support plate 213 does not change. The rotation of the support plate 213 is likely to be unstable, and accordingly, there is a problem that the feeding of the belt-like mount D is likely to fluctuate, which tends to cause printing shrinkage or printing position deviation. It also has a significant impact on the label stop position accuracy. *

The present invention has been made in view of the above-described problems. If the diameter of the paper roll is reduced, the moment of inertia of the support plate can be reduced to stabilize the rotation of the support plate. An object is to provide an apparatus.

In order to solve the above problems, a reel device of the present invention is a reel device that winds a belt-like sheet and holds a paper roll having a through-hole at the center so as to be rotatable around the through-hole and supplies the belt-like paper by rotation. A rotating shaft that protrudes from the machine base and is rotatably provided with respect to the machine base, and is provided coaxially with the rotating shaft so as to move with the rotating shaft and is fitted in the through hole of the paper roll. A boss to be inserted; a support plate that is provided coaxially with the rotating shaft on the inner side in the axial direction than the boss; and that is in contact with one side surface on the machine base side of the paper roll; In a reel device provided with a pressing member that contacts the other side of the roll, the inner plate having an inner contact surface that is set to a predetermined diameter and that contacts the one side of the machine side of the paper roll. When, An inner plate is provided closer to the machine than the inner plate and has a diameter larger than the diameter of the inner plate. The outer surface of the inner plate faces the outer side in the diameter direction and can contact one side surface of the paper roll. An outer plate having an outer abutting surface flush with the abutting surface, the inner plate being attached to the rotating shaft so as to move together with the rotating shaft, and the outer plate being attached to the rotating shaft. It is configured to be rotatable. *

Thus, when the paper roll is mounted on the apparatus, the paper roll is attached with the through hole inserted into the boss with the pressing member removed, and then the pressing member is attached. In this state, on one side surface of the paper roll on the machine base side, the inner side in the diameter direction is in contact with the inner contact surface of the inner plate, and the outer side in the diameter direction is supported in contact with the outer contact surface of the outer plate. Further, the other side of the paper roll on the machine base side is supported in contact with the pressing member. In this state, when the belt is pulled, the rotating shaft, the boss, the inner plate and the outer plate are rotated, and the belt is fed from the paper roll and supplied. Then, as the belt-shaped paper is pulled out, the diameter of the paper roll gradually decreases, and along with this, the outer contact surface of the outer plate of the support plate is exposed. Further, when the belt-shaped paper is fed out from the paper roll and the diameter of the paper roll becomes the same as the diameter of the inner plate, the outer plate is released from the contact of the paper roll, and the outer plate is rotatably attached to the rotation shaft. Therefore, the outer plate cannot be rotated by the paper roll. As a result, the moment of inertia of the paper roll is reduced and only the rotation of the inner plate is performed, so that the moment of inertia of the entire support plate is also reduced, preventing the situation where the outer plate wiggles and the rotation of the inner plate becomes unstable. The As a result, when the reel device is used in a paper supply device having a printer function, the cause of print shrinkage and print position deviation is eliminated, the paper stop position accuracy is improved, and smooth paper feed is realized. Can do. *

Further, if necessary, a ball bearing having an inner ring and an outer ring that is rotatable with respect to the inner ring via a ball is provided on the rotating shaft on the machine base side of the boss so that the inner ring is fitted, A housing fixed to the outer ring and covering the ball bearing is provided, and the outer plate is attached to the housing. Since the outer plate is attached to the housing, it is easy to attach, and the outer plate is supported by the rotating shaft via the ball bearing, so that the relative rotation is smooth and the outer plate is released from the contact of the paper roll. In this case, it is possible to reliably stop the rotation and reduce the load on the rotation of the rotating shaft. *

Further, if necessary, a braking mechanism for braking the rotation of the rotary shaft is provided inside the machine base, an excitation brake provided on the machine base side and excited by energization, and provided on the rotary shaft side and the above It is effective to have a brake plate that is attracted to the excitation brake by excitation of the excitation brake. *

In this case, when pulling of the belt is stopped, the rotation shaft rotates due to inertia, the paper roll rotates, the belt is fed out, and slack of the belt may occur. Since braking is performed, the rotation of the rotating shaft is suppressed, and a situation in which the belt-like paper is fed out and causes slack or the like is prevented. In addition, the braking mechanism can be configured with a simple mechanism.

According to the reel device of the present invention, the diameter of the paper roll gradually decreases as the belt-shaped paper is pulled out from the paper roll, but when the diameter of the paper roll becomes the same as the diameter of the inner plate, the outer plate Because the outer plate is released from the contact of the paper roll and is rotatably attached to the rotation shaft, the outer plate is not rotated by the paper roll, and only the inner plate rotates. The moment of inertia is reduced, so that the situation where the rotation of the inner plate becomes unstable is prevented. As a result, when this reel device is used in a paper supply device with a printer function, it is possible to eliminate the cause of print shrinkage and print position deviation, improve paper stop position accuracy, and realize smooth paper feed. Can be made.

Hereinafter, a reel device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. As shown in FIG. 1, the reel device S according to the embodiment of the present invention is used in a label supply device that supplies, for example, a belt-like mount D on which a label L is temporarily attached as a belt-like paper. The belt-like mount D is a paper roll DR wound with a through hole Da at the center. As shown in FIG. 1, a label supply device to which a reel device S according to an embodiment of the present invention is applied holds a machine roll 1 and a paper roll DR of a belt-like mount D temporarily attached with a label L. The reel device S that supplies the belt-like mount D to the paper transport path, the printing unit 4 that is provided in the machine base 1 and prints on the label L temporarily attached to the belt-like mount D supplied to the paper transport path, and the machine base 1 The peeling member 5 provided on the downstream side of the printing unit 4 has an edge for folding the strip-shaped mount D and peeling the label L temporarily attached to the strip-shaped mount D, and the peeling member 5 provided on the machine base 1 for labeling. And a take-up reel 6 for winding the belt-like mount D from which L has been peeled off. *

The printing unit 4 includes a thermal type print head 10 that performs printing on a label L temporarily attached to the belt-like mount D supplied from the reel device S, and the print head 10 is pressed against the belt-like mount D via the belt-like mount D. And a roller-shaped platen member 11 that supports the plate. The platen member 11 is rotatably supported by a support member 12 attached to the machine base 1. A peeling member 5 is attached to the tip of the support member 12. On the upstream side of the print head 10, a guide member 13 that abuts on the belt-like mount D and presses and guides the belt-like mount D toward the support member 12 is provided.

Further, the belt-like mount D is supported on the upstream side of the guide member 13 and urged so as to advance toward the belt-like mount D by a biasing force of a spring (not shown). A damper mechanism 15 having a damper member 14 is provided. Furthermore, on the take-up reel 6 side from the peeling member 5, a feed unit 16 that pulls out the belt-like mount D and conveys it to the take-up reel 6 side is provided. The feed unit 16 includes a feed roller 17 that is rotationally driven by a drive unit (not shown), and a pressure roller 18 that is pressed against the feed roller 17 and conveys the belt-like mount D together with the feed roller 17. Yes. *

As shown in FIGS. 1 to 4, the reel device S according to the present embodiment winds a belt-like mount D and holds a paper roll DR having a through hole Da at the center so as to be rotatable around the through hole Da. At the same time, the belt-like mount D is supplied by rotation. The rotary shaft 20 protrudes from the machine base 1 and is rotatably provided with respect to the machine base 1, and is provided coaxially so as to move with the rotary shaft 20. A boss 21 that is inserted into the through hole Da of the paper roll DR, and a support plate 30 that is provided on the inner side in the axial direction of the boss 21 and coaxially with the rotary shaft 20 and abuts on one side surface DRa of the paper roll DR on the machine base 1 side And a pressing member 22 provided on the outer side in the axial direction than the boss 21 and abutting against the other side surface DRb of the paper roll DR. *

The boss 21 is fitted into the through hole Da of the paper roll DR and is formed in a disk shape. The holding member 22 is formed in a substantially rectangular plate shape having a length substantially the same as the diameter of an outer plate 35 of the support plate 30 to be described later, and a holding plate 23 whose center is inserted through the rotary shaft 20 and a center outer side of the holding plate 23. It is provided with a fixing knob 24 that is provided and is inserted into the rotary shaft 20 and rotated to crimp the rotary shaft 20 to fix the presser plate 23 to the rotary shaft 20. A disc-shaped sub boss 25 is provided on the inner side of the center of the pressing plate 23. The disc-shaped sub boss 25 has an insertion hole 26 through which the rotary shaft 20 is inserted and is fitted into the through hole Da of the paper roll DR. *

The support plate 30 includes an inner plate 31 and an outer plate 35. The inner plate 31 is formed in a ring shape set to a predetermined diameter, and has an inner abutment surface 32 that abuts on one side surface DRa of the paper roll DR on the machine base 1 side. The inner contact surface 32 of the inner plate 31 is formed with a plurality of openings 33 penetrating at an equiangular relationship to reduce the weight. The inner plate 31 is attached so as to move with the rotating shaft 20. Specifically, as shown in FIG. 3, the inner plate 31 is fixed to the boss 21 by fixing its inner peripheral edge portion 32 a to the machine base 1 side of the boss 21 with a screw 34. Thereby, fixation of the inner plate 31 becomes easy. *

The outer plate 35 has a diameter larger than the diameter of the inner plate 31, faces the outer side in the diameter direction from the outer periphery of the inner plate 31, and can contact one side surface DRa of the paper roll DR. An outer contact surface 36 that is flush with the contact surface 32 is formed. A through hole 37 is formed at the center of the outer plate 35, and a recess 38 is formed in a portion corresponding to the inner plate 31 so as to be recessed in the machine base 1 so that the inner plate 31 can enter. A plurality of openings 39 penetrating at an equiangular relationship are formed in the outer contact surface 36 and the recess 38 of the outer plate 35 to reduce the weight. *

Further, as shown in FIG. 3, the rotary shaft 20 on the machine base 1 side of the boss 21 has an inner ring 41 and a double ball bearing 40 having an outer ring 43 that is rotatable with respect to the inner ring 41 via a ball 42. Is provided with the inner ring 41 fitted thereto. A housing 44 that covers the ball bearing 40 is fixed to the outer ring 43 of the ball bearing 40. The housing 44 has a disk-like bottom wall 46 formed with a through hole 45 inserted through the rotary shaft 20 at the center, and is provided coaxially with the through hole 45 in the bottom wall 46 and is connected to the outer ring 43 of the ball bearing 40 on the inner periphery. It is formed in a cup shape including a cylindrical side wall 47 into which a through hole 37 formed in the center of the outer plate 35 is loosely fitted. A flange 48 is formed on the outer side of the side wall 47, with which a peripheral edge portion 37 a of a through hole 37 formed at the center of the outer plate 35 abuts. The outer plate 35 is attached to the housing 44 by fixing the peripheral edge portion 37 a of the through hole 37 of the outer plate 35 to the flange 48 with the screw 49. Since the outer plate 35 is attached to the housing 44, the attachment becomes easy. *

Furthermore, a braking mechanism 50 that brakes the rotation of the rotary shaft 20 is provided inside the machine base 1. As shown in FIGS. 3 and 4, the braking mechanism 50 is attracted to the excitation brake 51 provided on the machine base 1 side and excited by energization, and the excitation brake 51 provided on the rotary shaft 20 side by excitation. The brake plate 52 is provided. The brake plate 52 has a cylindrical portion 53 that slides with respect to the rotary shaft 20, and a screw 54 screwed into the cylindrical portion 53 faces an axial recess 55 formed in the rotary shaft 20. The rotation shaft 20 is prevented from rotating, and the rotation of the rotation shaft 20 can be stopped via the screw 54 and the recess 55 when the excitation brake 51 is attracted. Since the braking mechanism 50 includes the excitation brake 51 and the brake plate 52, it can be configured with a simple mechanism. The excitation brake 51 of the braking mechanism 50 is controlled by a control unit (not shown) that controls the printing unit 4 and the feed unit 16, and after transporting the label L, specifically after printing on the label L by the printing unit 4. Driven to temporarily stop the supply of the belt-like paper D. *

Therefore, in this label supply device, first, when the belt-like mount D is newly mounted on the reel device S according to the embodiment of the present invention, the paper roll DR is inserted into the through hole Da with the pressing member 22 removed. The insertion is performed by inserting the boss 21 into the boss 21, and then the pressing member 22 is attached. In this state, on one side DRa of the paper roll DR on the side of the machine base 1, the inner side in the diameter direction contacts the inner contact surface 32 of the inner plate 31, and the outer side in the diameter direction contacts the outer contact surface 36 of the outer plate 35. Supported in contact. The other side DRb of the paper roll DR on the side of the machine base 1 is in contact with and supported by the pressing member 22. *

When the label supply device is driven in this state, as shown in FIG. 1, the belt-like mount D is pulled by the platen member 11 and the feed unit 16, and in the reel device S, the rotary shaft 20, the boss 21, and the support plate 30 are pulled. The inner plate 31 and the outer plate 35 rotate, and the belt-like mount D is fed out from the paper roll DR and supplied. When the label L temporarily attached to the belt-like mount D reaches the printing unit 4, printing is performed on the label L by the print head 10, and then the belt-like mount D is folded back by the peeling member 5 and temporarily attached to the belt-like mount D. The attached label L is peeled off. The belt-like mount D from which the label L has been peeled is taken up by the take-up reel 6 that rotates via the feed unit 16. *

In the reel device S, the diameter of the paper roll DR gradually decreases as the belt-like mount D is pulled out. With this, the outer contact surface 36 of the outer plate 35 of the support plate 30 is exposed. Go. Further, when the belt-like mount D is fed out from the paper roll DR and the diameter of the paper roll DR becomes the same as the diameter of the inner plate 31, the outer plate 35 is released from the contact of the paper roll DR, and the outer plate 35 is rotated by the rotating shaft. The outer plate 35 is not rotated by the paper roll DR. Therefore, the moment of inertia of the paper roll DR is reduced and only the inner plate 31 is rotated, so that the moment of inertia of the entire support plate 30 is also reduced, and the rotation of the support plate 30 (the outer plate 35 and the inner plate 31) is not allowed. Stable situation is prevented. In this case, since the outer plate 35 is supported by the rotary shaft 20 via the ball bearing 40, the relative rotation becomes smooth, and when the outer plate 35 is released from the contact of the paper roll DR, the outer plate 35 is reliably Therefore, the load on the rotation of the rotary shaft 20 can be reduced by stopping the rotation. As a result, the cause of the printing shrinkage and the printing position deviation in the printing unit 4 is removed, the accuracy of the stop position of the paper is improved, and the smooth label L supply is performed. *

Further, when it is desired to temporarily stop the supply of the belt-like paper D, the control unit drives the excitation brake 51, and the rotating shaft 20 is braked by the braking mechanism 50 (FIG. 4B). In this case, if the braking mechanism 50 is not provided, the rotary shaft 20 rotates due to inertia and the paper roll DR rotates, and the belt-like mount D is fed out, and the belt-like mount D may be loosened. Since the rotary shaft 20 is braked by the rotation of the rotary shaft 20, the rotation of the rotary shaft 20 is suppressed, and a situation in which the belt-like mount D is fed out and causes slack or the like is prevented. *

In the above embodiment, the reel device S of the present invention is applied to a label supply device. However, the present invention is not necessarily limited to this, and any device can be used as long as it is a device that supplies a belt-like paper from a paper roll. Of course, it may be applied to.

It is a front view which shows the label supply apparatus with which the reel apparatus which concerns on embodiment of this invention was applied. 1 is an exploded perspective view showing a reel device according to an embodiment of the present invention. It is sectional drawing which shows the reel apparatus which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The braking mechanism of the reel apparatus which concerns on embodiment of this invention is shown, (a) is sectional drawing which shows the state at the time of normal, (b) is sectional drawing which shows the state at the time of braking. It is a figure which shows an example of the label supply apparatus with which the reel apparatus of this invention is applied. It is a perspective view which shows an example of the conventional reel apparatus.

Explanation of symbols

S reel device L label D strip mount (band strip) DR paper roll Da through-hole DRa one side DRb other side 1 machine base 4 printing unit 5 take-up reel 6 take-up reel 10 print head 11 platen member 13 guide member 15 damper mechanism 16 Feed section 20 Rotating shaft 21 Boss 22 Pressing member 23 Pressing plate 24 Fixing knob 25 Sub-boss 30 Support plate 31 Inner plate 32 Inner contact surface 33 Opening 35 Outer plate 36 Outer contact surface 37 Through hole 38 Recess 39 Opening 40 Ball bearing 41, inner ring 42, ball 43, outer ring 44, housing 48, flange 50, braking mechanism 51, excitation brake 52, brake plate 53, cylindrical portion 54, screw 55, recess

Claims

A reel device for winding a belt-like paper and having a paper roll having a through hole at its center so as to be rotatable around the through-hole, and supplying the belt-like paper by rotation. A rotating shaft provided rotatably with respect to the rotating shaft, a boss provided coaxially with the rotating shaft so as to move together with the rotating shaft, and a boss inserted into the through hole of the paper roll, and on the inner side in the axial direction than the boss. A reel provided with a support plate that is provided coaxially with the rotating shaft and contacts one side surface of the paper roll, and a pressing member that is provided axially outside the boss and contacts the other side surface of the paper roll. In the apparatus, the support plate is provided with an inner plate having an inner abutment surface that is set to a predetermined diameter and abuts against one side surface of the paper roll on the machine base side, and is provided closer to the machine base than the inner plate. Play The outer diameter of the inner plate is larger than the outer diameter of the inner plate. The outer surface of the inner plate faces the outer side in the diameter direction and can contact one side surface of the paper roll. A reel device comprising: an outer plate, wherein the inner plate is attached to the rotating shaft so as to move together with the rotating shaft, and the outer plate is rotatably attached to the rotating shaft.
A ball bearing having an inner ring and an outer ring that is rotatable with respect to the inner ring via a ball is fitted on the rotating shaft of the boss on the machine base side, and the ball is fixed to the outer ring of the ball bearing. The reel device according to claim 1, wherein a housing that covers the bearing is provided, and the outer plate is attached to the housing.
A braking mechanism for braking the rotation of the rotary shaft is provided inside the machine base, the brake mechanism is provided on the machine base side and excited by energization, and the excitation shaft provided on the rotary shaft side The reel device according to claim 1, further comprising a brake plate that is attracted to the excitation brake by excitation of the brake.