CN210000716U

CN210000716U - Lining paper winding device

Info

Publication number: CN210000716U
Application number: CN201920461490.3U
Authority: CN
Inventors: 浅井良則
Original assignee: Toshiba TEC Corp
Current assignee: Toshiba TEC Corp
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2020-01-31
Anticipated expiration: 2029-04-08

Abstract

The embodiment of the utility model provides a slip sheet coiling apparatus for label printer, including the book axle, driven gear, torque limiter and elasticity reversal subassembly, driven gear and the meshing of curling axle, torque limiter and driven gear coaxial axis set up, torque limiter's the th end of torque simultaneously and elasticity reversal subassembly are connected, torque limiter's the second end of torque is connected with driven gear, through using above-mentioned slip sheet coiling apparatus, there is the load that applies to the label when the label is sent backwards in this to avoid current label printer to mismatch with the conveying force of platen and cause the problem that the label deviates the printing die position, guarantee the precision of label printing in-process and with this work efficiency who improves label printer.

Description

Lining paper winding device

Technical Field

The utility model relates to an slip sheet coiling mechanism for label printer.

Background

Currently, in a label printer in which continuous paper (including labels and slip sheets) is configured in a roll shape, as shown in fig. 1 (fig. 1 is a schematic diagram of a conventional label printer in which a slip sheet is peeled off, and a dotted line represents a running track of the slip sheet), a platen roller rotationally conveys and discharges the paper; the peeling bar 2' in the peeling mechanism bends the backing paper during the paper ejection process, thereby peeling the label from the backing paper.

The peeled-off backing paper is stored in a backing paper winding mechanism, and is wound into a backing paper roll 3 'by driving the backing paper downward by a DC motor via a winding shaft 1'.

In the paper ejection process, there are cases where after the printed label is printed and peeled from the liner paper, the leading end of the next labels are shifted in the direction of the ejection port with respect to the print head, and here the labels are reversed, first the DC motor is stopped, then the platen roller is reversed, and the label to be printed is moved to a predetermined stamp position while applying a load of degrees to the label with the transport force of the platen roller and while reversing the label .

By adopting the mode of in which the label is reversed while being applied with constant load , the interleaving paper is prevented from being loosened during the reversing when no load is applied, and from being excessively bent when the interleaving paper is subsequently peeled, thereby preventing the peeling property from being lowered.

However, in the conventional system, since the load after the stop of the driving is determined by the load when the DC motor is stopped, it is difficult to optimize the conveying force with respect to the platen roller, and there is a problem that the label slips and deviates from a predetermined position, that is, the label may deviate from the position of the printing stamper, when the label is fed back.

Therefore, the conventional label printer has a problem that the load applied to the label when the label is reversed does not match the conveying force of the platen roller, causing the label to deviate from the printing stamp position.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention aims to provide kinds of lining paper winding devices for label printers, so as to avoid the problem that the load applied to the label when the label is reversed in the existing label printer is not matched with the transmission force of the platen roller, which causes the label to deviate from the position of the printing die, thereby ensuring the precision of the label printing process and improving the working efficiency of the label printer.

The utility model provides an slip sheet coiling mechanism for label printer, including crimping axle, driven gear, torque limiter and elasticity reversal subassembly, driven gear with the crimping axle meshing, the torque limiter with the coaxial axle setting of driven gear, simultaneously the torque end of torque limiter with elasticity reversal subassembly is connected, the torque second end of torque limiter with driven gear is connected.

According to the above configuration, the sheet can be separated into three stages from peeling to reversing.

And stage, during the process of curling lining paper by forward rotation of the curling shaft of the label printer, when the reverse stopping force is within the preset value, the driven gear is driven by the curling shaft to rotate, and simultaneously, the torque end, the torque second end and the elastic reverse rotation assembly of the torque limiter are linked, so that the elastic reverse rotation force is gradually increased.

In the second stage, when the reverse stopping force exceeds the preset value during the process of curling lining paper by forward rotation of the curling shaft of the label printer, the driven gear is driven by the curling shaft to rotate, the th end of the torque limiter is linked, but the second end of the torque is separated from the th end of the torque under the action of reverse rotation elastic force, so that the second end of the torque and the elastic reverse rotation assembly stop being linked, and the elastic reverse rotation force is kept unchanged.

The third stage is as follows: in the process of reversing the curling shaft of the label printer to feed the labels reversely, the DC motor stops driving the curling shaft, so that the elastic force of the elastic reversing assembly becomes a leading factor, the elastic reversing assembly enables the curling shaft to have reverse rotation torque through the torque limiter and the driven gear, and the effect matched with the load when the DC motor stops is achieved under the combined action of the reverse rotation torque and the transmission torque of the paper pressing roller, so that the problems of label slippage and deviation from a specified position during label reverse feeding are avoided.

, the lining paper winding device, wherein the torque limiter is of steel ball type structure.

The steel ball type torque limiter has the advantages of high reaction speed after overload, high set torque precision and long service life, and is favorable for improving the position accuracy of label feedback.

, the slip sheet winding device includes a spring and a driving arm, the spring includes an elastic second end and an elastic second end, the driving end of the driving arm is connected to the torque second end , the driving second end of the driving arm is connected to the elastic second end, the elastic second end is connected to a support, and the support is located inside the label printer.

Adopt spring and driving arm complex mode, can effectively realize the function of elasticity reversal subassembly, promptly:

when the reverse stopping force is within the preset value and the curling shaft rotates forwards, the transmission arm is used as a connecting mechanism, so that the spring is gradually deformed, and the reverse elastic force is gradually increased.

When the reverse stopping force exceeds a preset value and the curling shaft rotates forwards, the th torque end is separated from the second torque end, the transmission arm serves as a connecting mechanism, the th torque end, the transmission arm and the spring stop linkage, and the reverse rotation elastic force is kept unchanged.

When the winding shaft reversely rotates, the th torque end and the second torque end are connected again, the reverse rotation elastic force becomes the dominant factor, and the winding shaft has reverse rotation torque by the transmission arm, the torque limiter and the driven gear as the connection mechanism.

Further , in the interleaving paper winding device, the driving arm is provided coaxially with the torque limiter.

The assembly structure with the same axis is adopted, the motion of the transmission arm has stronger regularity under the driving of the torque limiter, and the arc-shaped running track is presented, so that the direction of the reverse elastic force generated by the transmission arm and the spring is more controllable, and the label can move to the specified pressing die position when being reversed.

, the resilient reverse rotation assembly further comprises a stop member, wherein the stop member is disposed on the path of the driving arm when the winding shaft rotates in the forward direction.

Through setting up the backstop body for reverse backstop power is produced by drive arm and backstop body interact after the contact, is convenient for retrain the orbit of drive arm when the positive rotation of curling axle, simultaneously, under backstop body and support piece fixed prerequisite each other, is favorable to the spring to provide stable reverse elastic force.

, the resilient reverse rotation assembly further comprises a second stop disposed on the path of the driving arm when the shaft is reversed.

Through setting up the second backstop body, at the reverse in-process of label, be convenient for retrain the orbit of driving arm when curling axle reversal, make the displacement of the reverse of label just make and wait to print the label and be in the position of printing the moulding-die, improve the degree of accuracy of printing.

, the slip sheet winding device wherein the stop body and the second stop body are provided with rubber surfaces.

The rubber belongs to a high-elasticity polymer material with reversible deformation, and can play a role in buffering when the transmission arm is in contact with the surface of the rubber, so that the impact force generated in the contact process of the transmission arm and the rubber can be effectively counteracted, and the service life of the lining paper coiling device can be prolonged.

, the spring is detachably connected to the driving arm and the spring is detachably connected to the supporting member.

The detachable connection constitutes for spring mounting, change and fault handling are more convenient, are favorable to improving label printer's life and work efficiency.

, the spring is an extension spring in the slip sheet winding device.

And the extension spring is adopted, so that the structure is simple and the installation is easy.

, the lining paper winding device is characterized in that the spring is a torque spring, and the torque spring and the torque limiter are coaxially arranged.

Adopt torque spring, can optimize label printer's inner space for overall structure is compacter.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic diagram of a prior art label printer for removing liner paper;

fig. 2 is a schematic view of the relative position of the actuator arm according to an embodiment of the present invention;

fig. 3 is a schematic diagram of the relative position of a torsion spring according to an embodiment of the present invention;

fig. 4 is an exploded view of an embodiment of the present invention;

fig. 5 is a side view of an embodiment of the present invention;

FIG. 6 is a schematic view of the actuator arm contacting the th stopper according to the second embodiment of the present invention;

fig. 7 is a schematic view of the contact between the driving arm and the second stopping body according to the second embodiment of the present invention;

FIG. 8 is an exploded view of a second embodiment of the present invention;

FIG. 9 is a schematic view of the actuator arm contacting the th stopper according to the third embodiment of the present invention;

fig. 10 is a partial side view of a third embodiment of the present invention; and

fig. 11 is an exploded view of the third embodiment of the present invention.

Description of the reference numerals

1' existing coil shaft

2' existing stripper bars

3' paper roll for lining paper

1 slip sheet winding device

2 crimping shaft

3 driven gear

4 Torque limiter

th end of 4A torque

4B torque second end

5 spring (extension spring or torque spring)

Elastic th end of 5A

5B elastic second end

6 driving arm

th end of 6A transmission

6B drive second end

7 support piece

8 th stop body

9 second stop body

10 carriage

11 fixed plate

12 support rod

13 through hole

14 clamping hole

15 clamping rod

Detailed Description

Various exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated. The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration". Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

It is noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", and the like refer to directions or positional relationships illustrated in the drawings, which are for convenience of description only and do not indicate or imply that the devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.

Furthermore, it should be noted that, unless otherwise expressly specified or limited in this specification, the terms "mounted," "connected," and "connected" are intended to be , and include, for example, either a fixed connection or a removable connection, or physical connection, a mechanical connection or an electrical connection, a direct connection or an indirect connection via an intermediary, or a communication between two elements.

It will be appreciated by those skilled in the art that features of the embodiments of the invention may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In examples, methods, means, and elements well known to those skilled in the art are not described in detail in order to not unnecessarily obscure the present invention.

In order to make the above objects, features and advantages of the present invention more obvious and understandable, embodiments of the lining paper winding device of the present invention will be described in detail below.

Referring to fig. 2 to 4, an th embodiment of the slip sheet winding device of the present invention is shown, fig. 2 is a schematic diagram of a relative position of a driving arm in a th embodiment of the present invention, fig. 3 is a schematic diagram of a relative position of a torque spring in a th embodiment of the present invention, fig. 4 is a schematic diagram of an exploded structure of a th embodiment of the present invention, and fig. 5 is a side view of a th embodiment of the present invention.

In fig. 2 and 5, the directions indicated by the straight arrows are the directions of the spring pulling force.

The utility model provides an slip sheet coiling apparatus 1 for label printer, including book axle 2, driven gear 3, torque limiter 4 and elasticity reversal component, driven gear 3 meshes with book axle 2, and torque limiter 4 sets up with the driven gear 3 is coaxial, and the torque of torque limiter 4 holds 4A and elasticity reversal component to be connected simultaneously, and the torque second end 4B of torque limiter 4 is connected with driven gear 3.

According to the above constitution, the label can be separated into three stages from peeling to reversing.

In the stage, when the reverse stopping force is within the preset value during the process of curling lining paper by the forward rotation of the curling shaft 2 of the label printer, the driven gear 3 is driven by the curling shaft 2 to rotate, and simultaneously the torque end 4A, the torque second end 4B and the elastic reverse rotation assembly of the torque limiter 4 are linked, so that the elastic reverse rotation force is gradually increased.

In the second stage, when the reverse stopping force exceeds the preset value in the process of curling lining paper by forward rotation of the curling shaft 2 of the label printer, the driven gear 3 is driven by the curling shaft 2 to rotate, and simultaneously, the torque th end 4A of the torque limiter 4 is linked, but the torque second end 4B is separated from the torque th end 4A under the action of reverse rotation elastic force, so that the torque second end 4B and the elastic reverse rotation component are stopped linking, and the elastic reverse rotation force is kept unchanged.

The third stage is as follows: in the process of reversely feeding labels by reversely rotating the curling shaft 2 of the label printer, the DC motor stops driving the curling shaft 2, so that the elastic force of the elastic reversing component becomes a leading factor, the elastic reversing component enables the curling shaft 2 to have reverse rotation torque through the torque limiter 4 and the driven gear 3, and the effect matched with the load when the DC motor stops is achieved under the combined action of the reverse rotation torque and the transmission torque of the paper pressing roller, so that the problems of label slippage and deviation from a specified position during the reverse feeding of the labels are avoided.

Next, in the slip sheet winding device 1, the torque limiter 4 has a steel ball type structure.

The steel ball type torque limiter 4 has the advantages of high reaction speed after overload, high set torque precision and long service life, and is favorable for improving the position accuracy of label feedback.

Furthermore, in the slip sheet winding device 1, the elastic reversing assembly comprises a spring 5 and a driving arm 6, the spring 5 is a torque spring 5, the torque spring 5 is coaxially arranged with the torque limiter 4 and is positioned on the outer peripheral surface of the torque limiter 4 and is connected with the torque limiter 4 in a sliding contact manner, the driving th end 6A of the driving arm 6 is connected with the torque th end 4A, the driving second end 6B of the driving arm 6 is connected with the elastic second end 5B of the spring 5, the elastic th end 5A of the spring 5 is connected with the support 7, and the support 7 is positioned inside the label printer.

Adopt torque spring 5, can optimize the inner space of label printer for overall structure is compacter. Adopt spring 5 and the 6 complex modes of driving arm simultaneously, can effectively realize the function of elasticity reversal subassembly, promptly:

when the reverse stopping force is within the predetermined value and the curling shaft 2 rotates forward, the transmission arm 6 is used as a connecting mechanism, so that the spring 5 is gradually deformed, and the reverse rotation elastic force is gradually increased.

When the reverse stopping force exceeds a preset value and the curling shaft 2 rotates forwards, the th end 4A and the second end 4B of the torque are separated, the transmission arm 6 serves as a connecting mechanism, the th end 4A of the torque, the transmission arm 6 and the spring 5 stop linkage, and the reverse rotation elastic force is kept unchanged.

When the winding shaft 2 reversely rotates, the torque th end 4A and the torque second end 4B are restored to be connected, the reverse rotation elastic force becomes a dominant factor, and the winding shaft 2 has a reverse rotation torque by the driving arm 6, the torque limiter 4, and the driven gear 3 as a connection mechanism.

In the mount paper winding device 1, the transmission arm 6 is provided coaxially with the torque limiter 4.

By adopting the coaxial assembly structure, under the driving of the torque limiter 4, the motion of the transmission arm 6 has stronger regularity and presents an arc-shaped running track, so that the direction of the reverse elastic force generated by the transmission arm 6 and the spring 5 is more controllable, and the label can move to the specified pressing die position when being reversed.

In addition, in the lining paper winding device 1, the spring 5 is detachably connected with the driving arm 6 and the supporting piece 7 respectively, the second end of the driving arm 6 is provided with a clamping hole 14 and is connected with the elastic second end 5B of the torque spring 5, the supporting piece 7 comprises a supporting rod 12 and a through hole 13 which are connected, the through hole 13 is connected with the elastic end 5A of the torque spring 5, and the supporting piece 7 is fixed inside the label printer.

The detachable connection constitutes for spring 5 installation, change and fault handling are more convenient, are favorable to improving label printer's life and work efficiency.

In addition, in the interleaving paper winding device 1, the elastic reverse rotation assembly further comprises an th stopper 8, and a th stopper 8 is arranged on the running track of the transmission arm 6 when the winding shaft 2 rotates forwards.

By providing the th stopper 8, the reverse stopping force is generated by the interaction between the driving arm 6 and the th stopper 8 after the driving arm 6 contacts with the normal rotation of the winding shaft 2, so that the movement track of the driving arm 6 in the normal rotation of the winding shaft 2 is restrained, and meanwhile, on the premise that the th stopper 8 and the support member 7 are fixed to each other, the spring 5 is facilitated to provide stable reverse elastic force.

Meanwhile, in the slip sheet winding apparatus 1, the elastic reversing member further includes a second stopper 9; the second stop body 9 is arranged on the path of travel of the driving arm 6 when the winding shaft 2 rotates in reverse.

Through setting up second backstop body 9, in the label switching back in-process, be convenient for retrain the orbit of driving arm 6 when curling axle 2 reversal, make the displacement of label switching back just make and wait to print the label and be in the position of printing the moulding-die, improve the degree of accuracy of printing.

Further, in the above-described interleaving paper winding apparatus 1, the th stopper 8 and the second stopper 9 are provided with rubber surfaces.

The rubber belongs to a high-elasticity polymer material with reversible deformation, and when the transmission arm 6 is in contact with the surface of the rubber, the rubber can play a role in buffering, effectively counteracts impact force generated in the contact process of the transmission arm and the rubber, and is beneficial to prolonging the service life of the lining paper coiling device 1.

Referring again to fig. 2 to 5, in actual operation:

the stage is that when the driving arm 6 is not in contact with the stopper 8 during the process of curling the liner paper by forward rotation of the curling shaft 2 of the label printer, the driven gear 3 is driven by the curling shaft 2 to rotate, and simultaneously the torque th end 4A, the torque second end 4B and the driving arm 6 of the torque limiter 4 are linked, and the torque spring 5 is twisted and the elastic reverse force is gradually increased because the driving second end 6B is connected with the elastic second end 5B and the elastic th end 5A is fixed through the through hole 13 of the support 7.

In the second stage, when the transmission arm 6 contacts the th stopper 8 during the process of curling the liner paper by forward rotation of the curling shaft 2 of the label printer, the driven gear 3 is driven by the curling shaft 2 to continue rotating, and simultaneously, the end 4A of the torque limiter 4 is linked, but the transmission arm 6 connected with the second end 4B of the torque stops due to the stopping of the th stopper 8, so that the second end 4B of the torque is separated from the th end 4A of the torque, the second end 4B of the torque stops linking, the torque spring 5 is in a deformed state, and the elastic reverse force is kept unchanged.

And the third stage is that during the reverse rotation of the curling shaft 2 of the label printer for label feedback, the DC motor stops driving the curling shaft 2, so that the elastic force of the torque spring 5 becomes the dominant factor, the elastic second end 5B of the torque spring 5 enables the curling shaft 2 to have reverse rotation torque through the driving arm 6, the torque limiter 4 and the driven gear 3, and the effect matched with the load when the DC motor stops is achieved under the combined action of the reverse rotation torque and the transmission torque of the paper pressing roller, meanwhile, when the driving arm 6 moves to be in contact with the second stop body 9, the driving arm 6 stops moving, and the distance between the th stop body 8 and the second stop body 9 is just good for enabling the label to be printed to be at the printing pressing mold position, so that the printing accuracy can be improved by steps, and the problems that the label slips and deviates from the specified position during label feedback are avoided.

The embodiment of the utility model provides a slip sheet coiling apparatus 1 for label printer, including the book axle 2, driven gear 3, torque limiter 4 and elasticity reversal subassembly, elasticity reversal subassembly includes torque spring 5 and driving arm 6, driven gear 3 meshes with book axle 2, torque limiter 4 sets up with driven gear 3 is coaxial, torque th end 4A and the elasticity reversal subassembly of torque limiter 4 are connected simultaneously, torque second end 4B and driven gear 3 of torque limiter 4 are connected, through using above-mentioned slip sheet coiling apparatus 1, there is the problem that the load that applies to the label when the label is sent backwards and the transmission force of pressing the paper cylinder mismatch and cause the skew printing die position of label in the current label printer to this avoid.

Referring to fig. 6 to 8, a second embodiment of the lining paper winding device of the present invention is shown, fig. 6 is a schematic view of the contact between the driving arm and the th stopper in the second embodiment of the present invention, fig. 7 is a schematic view of the contact between the driving arm and the second stopper in the second embodiment of the present invention, and fig. 8 is an exploded schematic view of the second embodiment of the present invention.

Furthermore, in the slip sheet winding apparatus 1, the elastic reversing assembly comprises a spring 5 and a driving arm 6, the spring 5 is an extension spring 5, the th end 6A of the driving arm 6 is connected with the th end 4A of the torque, the driving second end 6B of the driving arm 6 is connected with the elastic second end 5B of the spring 5, the th end 5A of the spring 5 is connected with the support 7, and the support 7 is located inside the label printer.

And the extension spring 5 is adopted, so that the structure is simple and the installation is easy. Meanwhile, the function of the elastic reversing component can be effectively realized by adopting the mode that the extension spring 5 is matched with the transmission arm 6, namely;

when the reverse stopping force is within the predetermined value and the curling shaft 2 rotates forward, the transmission arm 6 is used as a connecting mechanism, so that the spring 5 is gradually stretched and deformed, and the reverse rotation elastic force is gradually increased.

In addition, in the lining paper winding device 1, hooks are arranged at two ends of the extension spring 5 and are detachably connected with the transmission arm 6 and the supporting piece 7 respectively, a clamping groove is formed in the second end of the transmission arm 6 and is connected with the elastic second end 5B of the extension spring 5, the supporting piece 7 comprises a supporting rod 12 and a fixing plate 11 which are connected in a body mode, the supporting rod 12 is connected with the elastic end 5A of the extension spring 5, and the fixing plate 11 is fixed on the inner bottom face of the label printer.

Referring again to fig. 6 to 8, in actual operation:

the stage is that when the driving arm 6 is not in contact with the stopper 8 during the process of curling the liner paper by forward rotation of the curling shaft 2 of the label printer, the driven gear 3 is driven by the curling shaft 2 to rotate, and simultaneously the torque th end 4A, the torque second end 4B and the driving arm 6 of the torque limiter 4 are linked, because the driving second end 6B is connected with the elastic second end 5B and the elastic th end 5A is fixed by the support rod 12 of the support 7, the extension spring 5 is elongated and deformed, and the elastic reverse force is gradually increased.

In the second stage, when the transmission arm 6 contacts the th stopper 8 during the process of curling the liner paper by forward rotation of the curling shaft 2 of the label printer, the driven gear 3 is driven by the curling shaft 2 to continue rotating, and simultaneously, the end 4A of the torque limiter 4 is linked, but the transmission arm 6 connected with the second end 4B of the torque stops due to the stopping of the th stopper 8, so that the second end 4B of the torque is separated from the th end 4A of the torque, the second end 4B of the torque stops linking, the tension spring 5 is in a deformed state, and the elastic reverse force is kept unchanged.

And the third stage is that during the reverse rotation of the curling shaft 2 of the label printer for label feedback, the DC motor stops driving the curling shaft 2, so that the elastic force of the extension spring 5 becomes the leading factor, the elastic second end 5B of the extension spring 5 enables the curling shaft 2 to have reverse rotation torque through the transmission arm 6, the torque limiter 4 and the driven gear 3, and the effect matched with the load when the DC motor stops is achieved under the combined action of the reverse rotation torque and the transmission torque of the paper pressing roller, meanwhile, when the transmission arm 6 moves to be in contact with the second stop body 9, the transmission arm 6 stops moving, and the distance between the th stop body 8 and the second stop body 9 is just good for enabling the label to be printed to be at the printing pressing mold position, so that the printing accuracy can be improved by steps, and the problems that the label slips and deviates from the specified position during label feedback are avoided.

The embodiment of the utility model provides an interleaving paper coiling mechanism 1 for label printer, including the book axle 2, driven gear 3, torque limiter 4 and elasticity reversal component, elasticity reversal component includes extension spring 5 and drive arm 6, drive arm 6 sets up with the axle center with torque limiter 4, driven gear 3 meshes with book axle 2, torque limiter 4 sets up with the axle center with driven gear 3, torque limiter 4's th end 4A and elasticity reversal component are connected simultaneously, torque limiter 4's torque second end 4B is connected with driven gear 3, through using above-mentioned interleaving paper coiling mechanism 1, with this problem that the load that applies to the label when the label is sent in reverse and the conveying force of platen mismatch causes the skew printing die position of label.

Referring to fig. 9 to 11, a third embodiment of the lining paper winding device of the present invention is shown, fig. 9 is a schematic view of the contact between the driving arm and the th stopper in the third embodiment of the present invention, fig. 10 is a partial side view of the third embodiment of the present invention, and fig. 11 is an exploded schematic view of the third embodiment of the present invention.

Furthermore, in the slip sheet winding device 1, the elastic reversing assembly comprises a spring 5 and a transmission arm 6, the spring 5 is an extension spring 5, the transmission arm 6 is of a rectangular straight tooth structure, a transmission th end 6A of the transmission arm 6 is meshed with a torque th end 4A, a transmission second end 6B of the transmission arm 6 is connected with an elastic second end 5B of the spring 5, an elastic th end 5A of the spring 5 is connected with a support 7, and the support 7 is located inside the label printer.

The rectangular straight tooth structure is adopted, so that the stretching direction of the stretching spring 5 is more controllable and has stronger regularity; and the extension spring 5 is adopted, so that the structure is simple and the installation is easy. Adopt extension spring 5 and the 6 complex modes of driving arm simultaneously, can effectively realize the function of elasticity reversal subassembly, promptly:

In addition, in the interleaving paper winding device 1, hooks are provided at both ends of the tension spring 5, and detachably connected to the driving arm 6 and the supporting member 7, respectively. The second end of the driving arm 6 is provided with a clamping rod 15 which is connected with the elastic second end 5B of the extension spring 5. The transmission arm 6 and the support 7 are located below the torque limiter 4.

The support 7 comprises a support rod 12, a sliding frame 10 and a fixing plate 11 which are connected through an body, the support rod 12 is connected with the elastic end 5A of the extension spring 5, the fixing plate 11 is fixed on the inner bottom surface of the label printer, and the sliding frame 10 is provided with a sliding groove and is connected with the bottom surface of the transmission arm 6 in a rectangular straight tooth structure in a sliding mode.

In addition, in the slip sheet winding apparatus 1, the elastic reverse rotation member further includes th stoppers 8, th stoppers 8 are provided on the moving locus of the driving arm 6 when the winding shaft 2 rotates forward, and th stoppers 8 are provided on the fixed plate 11 of the support member 7.

Meanwhile, in the slip sheet winding apparatus 1, the elastic reversing member further includes a second stopper 9; the second stop body 9 is arranged on the path of travel of the driving arm 6 when the winding shaft 2 is reversed, and at the same time on the fixed plate 11 of the support 7.

Further, in the above-described liner paper winding apparatus 1, the carriage 10 is disposed between the -th stopper 8 and the second stopper 9, thereby optimizing the label printer internal space.

Referring again to fig. 9-11, in actual operation:

The embodiment of the utility model provides a slip sheet coiling apparatus 1 for label printer, including the book axle 2, driven gear 3, torque limiter 4 and elasticity reversal subassembly, elasticity reversal subassembly includes extension spring 5 and drive arm 6, drive arm 6 is the straight tooth structure of rectangle, driven gear 3 meshes with book axle 2, torque limiter 4 sets up with the driven gear 3 is coaxial, the th end 4A of torque limiter 4 meshes with drive arm 6 simultaneously, the torque second end 4B of torque limiter 4 is connected with driven gear 3, through using above-mentioned slip sheet coiling apparatus 1, there is the load that applies to the label when the label is turned over to this to avoid current label printer to mismatch with the power of driving of platen roller and causes the problem that the label deviates from the printing die position.

In fact, the torque limiter of the present invention can also be selected in other forms, such as friction type torque limiter, besides the steel ball type structure. As long as can inject the torsion of torque second end and can effectively guarantee the reversal of book bent axle, all belong to the utility model discloses a protection scope.

Furthermore, the utility model discloses well spring can also select other forms except selecting extension spring or torque spring, for example leaf spring etc. as long as can make the curling axle reverse after the motor stops, all belong to the utility model discloses a protection scope.

To sum up, no matter the selection mode of torque limiter, still the selection of spring structure, as long as belong to "make the book axle carry out the reversal after driving motor stops through the effect of elasticity reversal subassembly and torque limiter" the notion all belongs to the protection scope of the utility model.

As described above, although the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that many modifications can be made to the embodiments without substantially departing from the spirit and scope of the present invention. Therefore, all such modifications are included in the scope of the present invention.

Claims

An liner paper take-up device for a label printer, comprising:

a winding shaft, a driven gear, a torque limiter and an elastic reversing component;

the driven gear is meshed with the curling shaft;

the torque limiter and the driven gear are coaxially arranged; and is

A torque end of the torque limiter is connected with the elastic reversing component;

a torque second end of the torque limiter is connected with the driven gear.
2. The interleaving paper take-up device according to claim 1,

the torque limiter is of a steel ball type structure.
3. The interleaving paper take-up device according to claim 2,

the elastic reversing assembly comprises a spring and a transmission arm;

the spring includes an elastic second end and an elastic second end;

the th end of the transmission arm is connected with the th end of the torque;

the transmission second end of the transmission arm is connected with the elastic second end;

the flexible second end is connected to a support member and,

the support is located inside the label printer.
4. The interleaving paper take-up device according to claim 3,

the transmission arm and the torque limiter are coaxially arranged.
5. The interleaving paper take-up device according to claim 4,

the elastic reversing assembly also comprises an th stop body;

when the winding shaft rotates forwards, the th stop body is arranged on the running track of the transmission arm.
6. The interleaving paper take-up device according to claim 5,

the elastic reversing assembly further comprises a second stopping body;

when the winding shaft reversely rotates, the second stopping body is arranged on the running track of the transmission arm.
7. The slip sheet take-up device according to claim 6,

the th stopper and the second stopper are provided with rubber surfaces.
8. The interleaving paper take-up device according to claim 7,

the spring is detachably connected with the transmission arm; and is

The spring is detachably connected with the supporting piece.
9. The interleaving paper take-up device according to claim 8,

the spring is an extension spring.
10. The interleaving paper take-up device according to claim 9,

the spring is a torque spring;

the torque spring and the torque limiter are coaxially arranged.