JP5142935B2 - Roller device - Google Patents

Description

  The present invention relates to a roller device used in a label peeling device or the like that feeds a label by, for example, transporting a belt-like mount on which a label is temporarily attached as a belt-like paper, and in particular, holds the belt-like paper with a pair of rollers. The present invention relates to a roller device that rotates and conveys.

  In general, as shown in FIG. 3, for example, this type of roller device Sa conveys a belt-like backing sheet D on which a label L is temporarily attached as a belt-like paper, and peels the label L (for example, Japanese Patent Laid-Open No. -7672 (see Patent Document 1). This label peeling apparatus has a machine base 200, a supply reel 201 holding a roll of strip-shaped mount D temporarily attached with a label L, a paper supply section 202 for supplying this strip-shaped mount D from the supply reel 201, and a paper supply The strip member 203 supplied from the section 202 is folded back to peel off and supply the label L temporarily attached to the strip mount D, and the strip member 203 is provided on the upstream side of the release member 203 and temporarily attached to the strip mount D. A thermal print head 204 for printing on the label L, a platen member 205 that supports the belt mount D when the print head 204 is pressed against the belt mount D, and a winding for winding the belt mount D from which the label L has been peeled off. A mount winding unit 207 having a take-up reel 206 is provided. On the upstream side of the print head 204, a guide roller 208 is provided that contacts and guides the belt-like mount D toward the platen member 205.

  The roller device Sa is provided on the downstream side of the peeling member 203, and includes a pair of rollers 210 and 211 that rotate about a rotation shaft, and one of the pair of rollers 210 and 211 is a lever (not shown). The belt-like mount D can be pressed and separated from each other by an operation, etc., and the belt-like mount D is held when the pair of rollers 210 and 211 are pressed, and the rollers 210 and 211 are rotated to convey the belt-like mount D. Also, one of the rollers 210 and 211 is rotationally driven by a drive mechanism (not shown) or the like, and the other one is released from the pressure contact with one roller by operation of a lever (not shown). It is provided in the machine base 1 so that rotation is possible. In addition, any one of these rollers 210 and 211 is made of, for example, a metal that has been knurled, also called a nip roller.

By the way, these rollers, especially nip rollers, adhere to the label L paste and paper powder remaining on the strip-shaped mount D after the label L is peeled off, and therefore need to be cleaned regularly. Also, replace it in a timely manner. In that case, the rollers are separated from each other by the operation of a lever. However, in order to facilitate the work, conventionally, a roller device in which a nip roller can be attached and detached has been proposed (for example, Japanese Patent Application Laid-Open No. 2008-2008). -155979 (published in Patent Document 2)).
This is a support body (not shown) having bearings that support both ends of the rotating shaft of the nip roller so that it can be attached to and detached from a bracket (not shown). The support is removed from the bracket, and then the rotating shaft is removed from the support to remove the nip roller.

JP 2006-7672 A JP 2008-1555979 A

  However, in this conventional roller device, first, the support having bearings that support both ends of the rotating shaft of the nip roller is removed from the bracket, and then the rotating shaft is removed from the supporting member to remove the nip roller. Therefore, there is a problem that the structure is complicated. Further, since the nip roller must be removed together with the rotating shaft, for example, when the rotating shaft is connected to the drive mechanism, the removal becomes complicated and workability is poor, and the opposing adjustment of the rollers is performed. There was also a problem that it took time.

The present invention has been made in view of the above-described problems, and enables the roller to be attached / detached without removing the rotating shaft, simplifies the attaching / detaching mechanism, and facilitates cleaning and replacement work. It is an object of the present invention to provide a roller device that can be used.

In order to solve the above-described problems, a roller device according to the present invention includes a pair of rollers that rotate about a rotation shaft, enables the pair of rollers to be pressed against and separated from each other, and is used when the pair of rollers is pressed against each other. In a roller device that conveys the belt-like paper by holding the belt and rotating the roller,
The at least one of the rollers is formed in a cylindrical shape so that it can be inserted into and removed from the corresponding rotating shaft, and the roller is fixed to the corresponding rotating shaft when the roller formed in the cylindrical shape is inserted. A fixing means is provided, a bracket extending along the rotation shaft is provided, a pair of support portions having bearings that pivotally support the rotation shaft are provided at both ends of the bracket, and at least one of the support portions is attached to the bracket. It is the structure which enabled attachment and removal with respect to.

Thus, when cleaning or replacing the rollers, the pair of rollers is moved away from the pressure contact state, and first, one support portion is removed from the bracket to expose the end portion of the rotating shaft. In this state, the fixing means is released, and the cylindrical roller is removed from the rotating shaft. Then, after cleaning or replacing the roller, the roller is again inserted into the rotating shaft and fixed with fixing means, and a support portion is attached to the bracket, and the end of the rotating shaft is pivotally supported on the support portion. To do.
In this case, by simply removing the support member from the bracket, the end of the rotating shaft is exposed, and the cylindrical roller can be removed and inserted without removing the rotating shaft. The roller can be easily inserted / removed even when linked to the system, and the mechanism becomes extremely simple, and the roller can be easily cleaned and replaced. Can be improved.

  And, if necessary, the fixing means is inserted correspondingly to the end of the roller inserted into the rotating shaft and protruding from the rotating shaft, and at the end or both ends of the roller. It is sometimes provided with a notch recess that engages with the pin. Thus, by inserting a cylindrical roller into the rotating shaft, a notch can be inserted into the pin and engaged.Therefore, compared with the case where the pin is fixed or released by screw means, the roller relative to the rotating shaft Fixing and releasing can be performed very easily, and workability can be improved accordingly.

  In this case, it is effective to form the notch recesses at both ends of the roller. The insertion side end of the cylindrical roller can be inserted and engaged regardless of which end, and it is not necessary to consider the direction of the roller. Can be improved.

Further, if necessary, a bolt insertion hole through which a bolt is inserted is formed in a support portion that can be attached to and detached from the bracket, and a female screw into which the bolt is screwed is formed at the end of the corresponding bracket. The support portion can be attached and detached by screwing and releasing the bolt. Since the support portion can be attached and detached by screwing and unscrewing of the bolt, the operation is simple, and workability is improved in this respect as well.

According to the roller device of the present invention, simply removing the support member from the bracket exposes the end of the rotating shaft, and the cylindrical roller can be removed and inserted without removing the rotating shaft. Even when the rotating shaft is linked to the drive mechanism, the roller can be easily inserted and removed, so that the mechanism can be extremely simplified, the opposing adjustment of the rollers, and the cleaning of the roller. In addition, the replacement work can be easily performed, and the workability can be greatly improved.

Hereinafter, a roller 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 roller device S according to the embodiment of the present invention is a label peeling device that transports a belt-like mount D on which a label L is temporarily attached as a belt-like paper and peels the label L from the belt-like mount D. It is used. The label peeling apparatus includes a machine base 1, a paper supply unit (not shown) that supplies a belt-like mount D temporarily attached with a label L from a supply reel to a paper transport path, and a paper transport path provided in the machine base 1. A printing unit 4 that prints on a label L temporarily attached to the supplied belt-like mount D, and a label that is provided on the downstream side of the printing unit 4 of the machine base 1 and that is temporarily attached to the belt-like mount D by folding back the belt-like mount D A peeling member 5 having an edge for peeling L, and a mount take-up unit 7 provided with a take-up reel 6 that is provided on the machine base 1 and winds the belt-like mount D from which the label L is peeled off by the peeling member 5. ing.

  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 paper supply unit, and the print head 10 is pressed against the belt-like mount D via the belt-like mount D. And a roller-like platen member 11 that supports D. The print head 10 is pivotally supported by the mounting member 12 so as to be capable of being pressed and separated from the platen member 11 by the operation of the lever 15. The platen member 11 is rotatably supported by the support member 13, and the peeling member 5 is attached to the tip of the support member 13.

Further, a guide member 16 is provided on the mounting member 12 on the upstream side of the print head 10 to contact and guide the belt-like mount D toward the support member 13. The guide member 16 is pivotally supported by the attachment member 12 so as to be able to press and release the belt-like mount D in conjunction with the print head 10.
Furthermore, in the present embodiment, the belt-like mount D is supported on the upstream side of the guide member 16 and urged so as to advance to the belt-like mount D by the biasing force of the spring. A damper mechanism 18 having a damper member 17 that moves forward and backward is provided.

  As shown in FIGS. 1 and 2, the roller device S according to the embodiment of the present invention is provided on the downstream side of the peeling member 5, and is a pair of rollers, that is, a nip roller that rotates around a rotating shaft 21. 20 and a pressure roller 40 that rotates about a rotation shaft 41. The nip roller 20 and the pressure roller 40 can be pressed against and separated from each other. When the nip roller 20 and the pressure roller 40 are pressed against each other, the belt-like mount D is held and the nip roller 20 is rotated to convey the belt-like mount D. . The nip roller 20 is made of knurled metal, and the pressure roller 40 is made of elastic rubber or resin, and is formed integrally with the rotating shaft 41.

  Specifically, at least one of the rollers (nip roller 20 in the embodiment) is formed in a cylindrical shape and can be inserted into and removed from the rotating shaft 21. In the embodiment, the fixing means 22 for fixing the nip roller 20 to the rotating shaft 21 when the nip roller 20 formed in a cylindrical shape is inserted is provided. The fixing means 22 is provided at the end of the nip roller 20 inserted into the rotating shaft 21 and is formed on the end of the nip roller 20 so as to be engaged with the pin 23 at the time of insertion. A notch recess 24 is provided. The notch recess 24 is formed at both ends of the nip roller 20.

  A bracket 25 extending along the rotation shaft 21 is provided below the rotation shaft 21. The bracket 25 is formed in a block shape having a recess 26 where the nip roller 20 faces, and one end 25 a is fixed to the machine base 1. A pair of support portions 28 and 29 having bearings 27a and 27b that pivotally support the rotating shaft 21 are provided at both ends of the one end portion 25a and the other end portion 25b of the bracket 25. The support portion 28 on the one end portion 25 a side of the bracket 25 is constituted by the machine base 1, and the machine base 1 is provided with a bearing 27 a that supports the one end portion 21 a side of the rotating shaft 21. Further, one end 21 a of the rotating shaft 21 is in the machine base 1 and cooperates with the drive mechanism 30. Specifically, a gear 31 of a drive mechanism 30 is provided at one end 21 a of the rotary shaft 21, and the gear 31 is rotationally driven with a rotation of a drive motor (not shown) via a timing belt 32. The

  Further, the support portion 29 on the other end 21 b side of the bracket 25 can be attached to and detached from the bracket 25. Specifically, the support portion 29 is formed in a plate shape, and is provided with a bearing 27b that supports the other end portion 21b of the rotating shaft 21. The support portion 29 is formed with a pair of bolt insertion holes 36 at predetermined intervals through which the bolts 35 are inserted, while a pair of female screws 37 into which the bolts 35 are screwed into the end portions of the corresponding brackets 25. The support portion 29 is formed and can be attached to and detached from the bracket 25 by screwing the bolt 35 and releasing the screw. The bolt 35 has a head portion 35a that can be manually rotated. A head-side base end (not shown) of the male screw portion 35b is rotatably supported by the support portion 29 and is always supported by the support portion 29. It is attached to.

  Further, as shown in FIG. 1, the pressure roller 40 is rotatably supported at one end of an arm 42 that is pivotally supported on the support member 13, and the lever 43 is operated. Thus, the nip roller 20 is pressed against or separated from the nip roller 20 via the arm 42.

Therefore, when the belt-like mount D is set by the label peeling device using the roller device S according to the embodiment of the present invention, the belt-like mount D is manually fed out from the paper supply unit, and the damper member 17, the guide member 16, In the order of the printing unit 4, the belt-like mount D is passed, the belt-like mount D is folded back by the peeling member 5, and is passed between the pressure roller 40 and the nip roller 20 of the roller device S via the bottom surface of the support member 13. The leading end of the belt-like mount D is stopped on the take-up reel 6 of the take-up part 7 so that it can be taken up.
Thereafter, the print head 10 is pressed against the platen member 11 via the belt-like mount D by operating the lever 15. Thereby, the guide member 16 that operates in conjunction also presses the belt-like mount D. Further, the pressure roller 40 is pressed against the nip roller 20 by operating the lever 43.
In this state, the label peeling device is driven to carry the label L. At this time, the nip roller 20 is rotated by the drive mechanism 30 and cooperates with the pressure roller 40 to convey the belt-like mount D from the paper supply unit. The belt-like mount D is taken up by the take-up reel 6 of the mount take-up section 7 to be rotated. In this process, the belt-like mount D is guided by the guide member 16 and conveyed to the printing unit 4. In the printing unit 4, required printing is performed on the label L by the print head 10 and conveyed to the peeling member 5 side. When the conveyed belt-like mount D is folded back by the peeling member 5, the label L temporarily attached to the belt-like mount D is peeled off.

  When the nip roller 20 is cleaned or replaced, the following is performed. First, as shown in FIG. 2A, the pressure roller 40 is moved away from the pressure contact state by operating the lever 43. In this state, as shown in FIG. 2B, first, one support portion 29 is removed from the bracket 25 by unscrewing the bolt 35, and the other end portion 21b of the rotating shaft 21 is exposed. In this case, since the support portion 29 can be removed only by rotating the bolt 35, the operation is simple and workability is improved.

Next, as shown in FIG. 2B, the cylindrical nip roller 20 is removed from the rotating shaft 21. At this time, the notch recess 24 of the fixing means 22 is removed from the pin 23, so that the engagement is released. Compared to a screw means or the like, the nip roller 20 can be fixedly released from the rotating shaft 21 very easily, and workability can be improved accordingly. Since the nip roller 20 can be easily removed simply by removing the nip roller 20 from the rotary shaft 21, the workability can be improved accordingly.
The removed nip roller 20 is cleaned by washing or the like. In this case, since the nip roller 20 is separated from the apparatus, cleaning can be performed very easily.

Then, the cleaned nip roller 20 or the replacement nip roller 20 is inserted into the rotating shaft 21 again. At this time, the notch recess 24 of the fixing means 22 is engaged with the pin 23. The engagement of the notch recess 24 can be easily performed as compared with screw means and the like, and the workability is improved accordingly. Further, since the nip roller 20 can be easily attached simply by inserting the nip roller 20 into the rotary shaft 21, the workability is improved accordingly. In addition, since the rotating shaft 21 is not removed, the nip roller 20 is not opposed to the rotating shaft 21, and the facing adjustment with the pressure roller 40 is hardly required.
As shown in FIG. 2A, the support portion 29 is positioned at the other end portion 25b of the bracket 25, the other end 21b of the rotary shaft 21 is pivotally supported on the bearing 27 of the support portion 29, and the bolt 35 is attached. The bracket 25 is screwed. In this case, since the support portion 29 can be attached only by rotating the bolt 35, the operation is simple and the workability is improved.
If several cylindrical nip rollers 20 are prepared, the replacement can be performed first, and then the removed nip roller 20 can be cleaned. In this case, since the downtime of the label peeling apparatus can be shortened, the movable efficiency can be improved.
Then, again, as described above, the pressure roller 40 is pressed against the nip roller 20 by the operation of the lever 43, and the label L is conveyed.

In the above embodiment, only the nip roller 20 is detachable. However, the present invention is not limited to this, and the pressure roller 40 may be detachable with the same configuration, and may be changed as appropriate. . Of course, even if the positional relationship between the nip roller 20 and the pressure roller 40 is reversed, the nip roller 20 and the pressure roller 40 can be detachable with the same configuration as described above.
Although the present invention is applied to a label peeling apparatus, the present invention is not limited to this, and can be applied to any apparatus that conveys belt-like paper such as various printers. is there.

It is a figure which shows the label peeling apparatus using the roller apparatus which concerns on embodiment of this invention. It is a figure which shows the roller apparatus which concerns on embodiment of this invention, (a) is a perspective view which shows the attachment state of a roller, (b) is a disassembled perspective view which shows the state which removed the roller. It is a figure which shows the label peeling apparatus with which this invention is applied.

Explanation of symbols

S Roller device L Label D Strip mount (band strip)
DESCRIPTION OF SYMBOLS 1 Machine stand 4 Printing part 5 Separation member 6 Take-up reel 7 Mount winding part 10 Print head 11 Platen member 12 Mounting member 13 Support member 15 Lever 16 Guide member 17 Damper member 18 Damper mechanism 20 Nip roller 21 Rotating shaft 21a One end 21b Other end 22 Fixing means 23 Pin 24 Notch recess 25 Bracket 25a One end 25b Other end 26 Recess 27a, 27b Bearing 28, 29 Support 30 Drive mechanism 31 Gear 32 Timing belt 35 Bolt 36 Bolt insertion hole 37 Female thread 40 Pressure roller 41 Rotating shaft 42 Arm

Claims (3)

A pair of rollers that rotate about a rotation axis is provided, the pair of rollers can be pressed against and separated from each other, and the belt is held by the pair of rollers and the rollers are rotated to convey the belt. In the roller device to
The at least one of the rollers is formed in a cylindrical shape so that it can be inserted into and removed from the corresponding rotating shaft, and the roller is fixed to the corresponding rotating shaft when the roller formed in the cylindrical shape is inserted. A fixing means is provided, a bracket extending along the rotation shaft is provided, a pair of support portions having bearings that pivotally support the rotation shaft are provided at both ends of the bracket, and at least one of the support portions is attached to the bracket. A roller device characterized in that it can be attached to and detached from the roller.   The fixing means is provided corresponding to the end portion of the roller inserted into the rotating shaft, and protruded from the rotating shaft, and is formed at the end portion or both end portions of the roller and engages with the pin during insertion. The roller device according to claim 1, further comprising a notch recess.   A bolt insertion hole through which a bolt is inserted is formed in a support portion that can be attached to and detached from the bracket, and a female screw into which the bolt is screwed is formed at an end portion of the corresponding bracket. 3. The roller device according to claim 1, wherein the supporting portion can be attached and detached by releasing the screw.

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