CN202491528U - Paper roll supporting mechanism and printing device using the paper roll supporting mechanism - Google Patents

Paper roll supporting mechanism and printing device using the paper roll supporting mechanism Download PDF

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Publication number
CN202491528U
CN202491528U CN2012200273378U CN201220027337U CN202491528U CN 202491528 U CN202491528 U CN 202491528U CN 2012200273378 U CN2012200273378 U CN 2012200273378U CN 201220027337 U CN201220027337 U CN 201220027337U CN 202491528 U CN202491528 U CN 202491528U
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CN
China
Prior art keywords
paper roll
supporting mechanism
roll supporting
back shaft
cavity volume
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Expired - Lifetime
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CN2012200273378U
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Chinese (zh)
Inventor
赵振兴
张继刚
徐庆帮
董华勇
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Shandong New Beiyang Information Technology Co Ltd
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Shandong New Beiyang Information Technology Co Ltd
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Priority to CN2012200273378U priority Critical patent/CN202491528U/en
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Abstract

The utility model discloses a paper roll supporting mechanism and a printing device using the paper roll supporting mechanism. The paper roll supporting mechanism comprises a support shaft for supporting a paper roll, a bearing, and damping assemblies located at both ends of the support shaft. Each damping assembly comprises a support frame fixedly connected with the bearing and containing a support slot for accommodating an end part of the support shaft; a plug which is movably arranged on the support frame, extends into the support slot from a side slot wall of the support slot, abuts against and cooperates with the end part of the support shaft; an elastic element abutting against the plug to offer the plug with tendency to partially press the end part of the support shaft; and an adjusting element for adjusting the amount of compression of the elastic element. The paper roll supporting mechanism provided by the utility model is capable of adjusting the friction born by the support shaft according to weight difference of supported paper rolls and avoiding the problem that the outer rings of paper rolls become loose caused by overshoot of the support shaft and paper rolls due to inertia effect, and thus can adapt to paper rolls of different weights and is highly adaptable.

Description

Paper roll supporting mechanism and use the printing equipment of this paper roll supporting mechanism
Technical field
The utility model relates to a kind of paper roll supporting mechanism and uses the printing equipment of this paper roll supporting mechanism.
Background technology
In the PRN device that uses continuous paper roll, the user often requires to use big external diameter paper roll in order to reduce the number of times of changing paper roll, such as, external diameter is the paper roll of 150mm-200mm.Because the external diameter of paper roll is bigger, so the weight of paper roll is also heavier, at this moment; In order to guarantee the smooth and easy conveying of paper roll; Printer generally uses back shaft to support big paper roll, big paper roll is socketed on the back shaft, during printing; Printing mechanism spurs the relative back shaft of big paper roll and rolls, thereby has reduced the resistance of paper roll in transport process.Yet; Heavier paper roll when printing stops to make the paper roll outer ring that originally tightly wraps loose phenomenon occur, like this because effect of inertia can be rotated further (abbreviation overshoot); Might be when next is printed because the loose paper discontinuity that makes of paper roll causes print quality to descend.
For this reason; Publication number is that the Japanese patent application of JP2011032008 provides a kind of paper roll supporting mechanism; As shown in Figure 1, the paper roll supporting mechanism comprises bearing 18 ' and back-up block 22 ', wherein; Back-up block 22 ' is provided with 25 ', two back-up blocks 22 ' of outstanding back shaft and from paper roll 5 ' two ends paper roll is clipped in the middle respectively; Bearing 18 ' is provided with damping mechanism 23 '; Damping mechanism 23 ' is used for cooperating with the position of restriction back shaft 25 ' on bearing 18 ' with the back shaft 25 ' of back-up block 22 '; Apply frictional resistance to back shaft 25 ' simultaneously, stop paper roll because effect of inertia produces overshoot.
Wherein, damping mechanism 23 ' comprises fixture 30 ' and fork 31 ', and flexible member 24 '; Wherein fixture 30 ' is fixedly connected with bearing 18 ', and fork 31 ' articulates through axle 32 ' and bearing 18 ', on fixture 30 ' and fork 31 ', breach is set respectively; When fixture 30 ' with fork 31 ' relatively the time; Breach on fixture 30 ' and the fork 31 ' is relative, can cooperate the position of restriction back shaft 25 ' with back shaft 25 '; Flexible member 24 ' one end is connected with fork 31 '; The other end is connected with bearing 18 '; Under the effect of flexible member 24 '; Breach on the fork 31 ' remain on fixture 30 ' breach near movement tendency, thereby apply frictional resistance to being contained in two back shafts 25 ' among the breach.
The shortcoming of this paper roll supporting mechanism is that because the active force that flexible member 24 ' acts on the fork 31 ' is fixed, the frictional resistance that therefore is applied on the back shaft 25 ' is fixed, and can not adapt to the paper roll with different maximum weights, bad adaptability.
The utility model content
The purpose of the utility model is to provide a kind of adaptable paper roll supporting mechanism.In addition, the purpose of the utility model also is to provide a kind of printing equipment that uses this paper roll supporting mechanism.
For this reason; The utility model provides a kind of paper roll supporting mechanism; Comprise the back shaft and the bearing that are used to support paper roll, and comprise the damper assembly that is separately positioned on the bearing and is positioned at the back shaft two ends, each damper assembly comprises: bracing frame; Be fixedly connected with bearing, comprise the support slot of the end that holds back shaft; Plug is arranged on the bracing frame versatilely, and wherein, a side channel wall of plug self-supporting groove stretches in the support slot and with the end butt of back shaft and cooperates; Flexible member, with the plug butt, with plug towards the end of back shaft bias voltage; And regulating part, the decrement of regulating flexible member.
Further, be provided with backing plate between above-mentioned regulating part and the flexible member.
Further, above-mentioned bracing frame has first cavity volume that holds flexible member.
Further, above-mentioned damper assembly also comprises with bracing frame and being fixedly connected to seal the cover plate of first cavity volume.
Further, above-mentioned plug comprise the limiting section that is arranged in first cavity volume and stretch into support slot and with the portion that exerts pressure of the end butt of back shaft.
Further, the portion that exerts pressure with end back shaft butt above-mentioned plug tilts towards the bottom land of support slot.
Further, the plug of above-mentioned damper assembly, flexible member and regulating part have two groups, and about the width centreline symmetric arrangement of support slot.
Further; Above-mentioned bracing frame has first cavity volume and second cavity volume that holds each flexible member; Damper assembly comprises also with bracing frame and being fixedly connected to seal the cover plate of first cavity volume and second cavity volume that cover plate is provided with first bending part and second bending part, wherein; Regulating part is an adjustment screw, is respectively equipped with the screwed hole that cooperates with adjustment screw on first bending part and second bending part.
Further, above-mentioned regulating part is an adjustment screw, and bracing frame is provided with the screwed hole that cooperates with adjustment screw.
According to the utility model on the other hand; A kind of printing equipment is provided; Comprise frame, sheet transport direction sets gradually in the frame upper edge paper roll supporting mechanism, printing mechanism and cut paper mechanism, wherein, this paper roll supporting mechanism is a described paper roll supporting mechanism above the basis.
Damper assembly in the paper roll supporting mechanism that the utility model provides; Through the adjustment regulating part; Can regulate the decrement of stage clip, thereby the suffered frictional resistance of adjustable support axle makes suffered frictional resistance of back shaft and the paper roll inertia force when rotating suitable; Avoid making the loose problem in paper roll outer ring because of effect of inertia back shaft and paper roll overshoot.The paper roll supporting mechanism that provides according to the utility model can be according to the varying in weight of the paper roll that supports, the suffered frictional force of adjustable support axle, thereby can adapt to the paper roll of Different Weight, adaptability is strong.
Except top described purpose, characteristic and advantage, other purpose, characteristic and the advantage that the utlity model has are with combining accompanying drawing to do further detailed explanation.
Description of drawings
Constitute the preferred embodiment that the part of this specification, the accompanying drawing that is used for further understanding the utility model show the utility model, and be used for explaining the principle of the utility model with specification.Among the figure:
Fig. 1 is the structural representation of the paper roll supporting mechanism of printing equipment in the prior art;
Fig. 2 is the structural representation of paper roll supporting mechanism first embodiment that provides of the utility model;
Fig. 3 is the structure exploded perspective view of the damper assembly of paper roll supporting mechanism shown in Figure 2;
Fig. 4 is the structural representation of the bracing frame in the damper assembly shown in Figure 3;
Fig. 5 is the structural representation of paper roll supporting mechanism second embodiment that provides of the utility model;
Fig. 6 is the structural representation of paper roll supporting mechanism the 3rd embodiment that provides of the utility model; And
Fig. 7 is to use the structural representation of the printing equipment of the paper roll supporting mechanism that the utility model provides.
Description of reference numerals
1 bearing, 2 damper assemblies
3 back shafts, 11 left gripper shoes
12 right gripper shoe 31 step axles
32 middle part axles, 21 bracing frames
22 pressure assemblies, 23 cover plates
211 support slots, 212 first cavity volumes
213 second cavity volume 212a, first opening
The 212b first screwed hole 213a second opening
213b second screwed hole 214 first fixed legs
215 second fixed legs, 221 plugs
222 stage clips, 223 backing plates
The 224 adjustment screw 221a portion that exerts pressure
221b limiting section 231 first holes
232 second hole 212c the 3rd opening
213c the 4th opens 233 first bendings
234 second bending 233a the 3rd screwed hole
100 paper roll supporting mechanisms, 200 printing mechanisms
300 cut paper mechanisms, 400 frames
210 printheads 220 are printed rubber roll
310 movable blade, 320 fixed blades.
The specific embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Fig. 2 is the structural representation of paper roll supporting mechanism first embodiment that provides of the utility model.As shown in Figure 2, the paper roll supporting mechanism comprises bearing 1, two damper assemblies 2 and back shafts 3, and wherein, bearing 1 comprises left gripper shoe 11 and right gripper shoe 12, and both opposing parallel are provided with, between the two apart from the width that is greater than or equal to paper roll; Two damper assemblies 2 are fixedly connected with right gripper shoe 12 with left gripper shoe 11 respectively; Width centreline along paper roll is symmetrical set; Be used to limit the position of back shaft 3 on left gripper shoe 11 and right gripper shoe 12, and apply frictional resistance, stop paper roll because effect of inertia produces overshoot to back shaft 3.
Back shaft 3 is used to support paper roll, and the length of back shaft 3 is greater than the width of paper roll, and the internal diameter of the core tube of its external diameter and paper roll P is suitable.During work; The core tube of paper roll P and back shaft 3 sockets; Match with two damper assemblies 2 respectively in the two ends of back shaft 3, by two damper assembly 2 supports and constraint, two damper assemblies 2 are fixedly installed on respectively on left gripper shoe 11 and the right gripper shoe 12; When back shaft 3 with respect to damper assembly 2 when self axis freely rotates, drive paper roll P and rotate together thereupon.
Preferably; Back shaft 3 comprises the middle part axle 32 of coaxial setting and is symmetricly set on the step axle 31 at axle 32 two ends, middle part about the length center of middle part axle 32 that wherein, the internal diameter of the core tube of the external diameter of middle part axle 32 and paper roll P is suitable; The length and the distance between left gripper shoe 11 and the right gripper shoe 12 of middle part axle 32 are suitable; The external diameter of step axle 31 is less than the external diameter of middle part axle 32, and the step axle 31 that is positioned at axle 32 two ends, middle part cooperates with two damper assemblies 2 respectively, at this moment; The end face at axle 32 two ends, middle part matches with right gripper shoe 12 with left gripper shoe 11, and restriction back shaft 3 is play vertically.
Fig. 3 is the structure exploded perspective view of the damper assembly of paper roll supporting mechanism shown in Figure 2, and Fig. 4 is the structural representation of the bracing frame in the damper assembly shown in Figure 3.Like Fig. 3, shown in Figure 4, damper assembly 2 comprises bracing frame 21, two groups of pressure assemblies 22, and cover plate 23.
Wherein, bracing frame 21 comprises support slot 211, first cavity volume 212, second cavity volume 213 and the fixed part.
The end of back shaft 3 gets in the support slot 211 through the opening at its top; The end diameter of axle of the width of support slot 211 and back shaft 3 is suitable; When the two ends of back shaft 3 are step axle 31; The diameter of axle of the width of support slot 211 and step axle 31 is suitable, and preferably, the bottom of support slot 211 is and the suitable semicircle of step axle 31 external diameters.
First cavity volume 212 and second cavity volume 213 for example are rectangular-shaped, are used to hold pressure assembly 22.First cavity volume 212 and second cavity volume 213 are positioned at the both sides of support slot 211; Close on the bottom land setting of support slot 211; When the end of back shaft 3 places support slot 211, be contained in two groups of pressure assemblies 22 in first cavity volume 212 and second cavity volume 213 and stretch in the support slot 211 and be squeezed on the end of back shaft 3, can limit back shaft 3 and break away from support slots 211; When back shaft 3 two ends were provided with step axle 31, pressure assembly 22 was squeezed on the step axle 31.
Preferably, first cavity volume 212 and second cavity volume 213 are symmetrical set about the width centreline of support slot 211.Wherein, The end that first cavity volume 212 closes on support slot 211 is provided with the first opening 212a, is used to make first cavity volume 212 to be communicated with support slot 211, when support slot 211 cooperates with back shaft 3; The first opening 212a on first cavity volume 212 is relative with back shaft 3; First cavity volume 212 is provided with the first screwed hole 212b away from an end of support slot 211, and preferably, the axis of the first screwed hole 212b extends along the width centreline of first cavity volume 212.
The end that second cavity volume 213 closes on support slot 211 is provided with the second opening 213a; Be used to make second cavity volume 213 to be communicated with support slot 211; When support slot 211 cooperated with back shaft 3, the second opening 213a on second cavity volume 213 was relative with back shaft 3, and second cavity volume 213 is provided with the second screwed hole 213b away from an end of support slot 211; Preferably, the axis of the second screwed hole 213b extends along the width centreline of second cavity volume 213.
The fixed part of bracing frame 21 is used for fixing installs cover plate 23, and is used to make bracing frame 21 to be fixedly connected with left gripper shoe 11 or right gripper shoe 12, and fixed part can be structures such as fixed leg or grab.
When fixed part is fixed leg; Fixed leg is provided with screwed hole; Correspondence is provided with through hole on cover plate 23 or left gripper shoe 11, right gripper shoe 12; Pass through hole through securing members such as screws and cooperate with fixed leg and can cover plate 23 be fixedly connected with bracing frame 21, can also bracing frame 21 be fixedly connected with left gripper shoe 11 or right gripper shoe 12.
When fixed part is grab; Correspondence is provided with claw on cover plate 23 or left gripper shoe 11, right gripper shoe 12; Grab and claw snap fit can be fixedly connected bracing frame 21 with cover plate 23, can also bracing frame 21 be fixedly connected with left gripper shoe 11 or right gripper shoe 12.Bracing frame 2 comprises two first fixed legs 214 and two second fixed legs 215 in the present embodiment; Be provided with screwed hole on first fixed leg 214 and second fixed leg 215; Use securing member such as screw to pass the through hole of cover plate 23 and be threaded with screwed hole on first fixed leg 214; Bracing frame 21 is fixedly connected with cover plate 23; Use securing member such as screw to pass the through hole on left gripper shoe 11 or the right gripper shoe 12 and be threaded with screwed hole on second fixed leg 215, can make bracing frame 21 and left gripper shoe 11 perhaps right gripper shoe 12 be fixedly connected.
Every group of pressure assembly 22 comprises plug 221, stage clip 222, backing plate 223, and adjustment screw 224.Wherein, the matching relationship of the first group of pressure assembly and first cavity volume 212 is following:
Plug 221 comprises exert pressure 221a of portion and limiting section 221b; The limiting section 221b of plug 221 is arranged in first cavity volume 212; Width, the degree of depth of its width, the degree of depth and first cavity volume 212 are suitable; Its length is less than the length of first cavity volume 212, and therefore, limiting section 221b can be along the length direction translation of first cavity volume 212; The 221a of portion that exerts pressure is connected with limiting section 221b; The first opening 212a that can pass first cavity volume 212 stretches in the support slot 211, contacts with the back shaft that is positioned at support slot 211 3, preferably; The exert pressure cross section of the 221a of portion is circular-arc, when contacting with back shaft 3, can avoid damaging back shaft 3.
Plug 221, stage clip 222, backing plate 223 are placed in first cavity volume 212 successively, the limiting section 221b butt of an end of stage clip 222 and plug 221 wherein, the other end and backing plate 223 butts; The width of backing plate 223, the degree of depth are suitable with width, the degree of depth of first cavity volume 212 respectively, and its length is less than the length of first cavity volume 212; Adjustment screw 224 is threaded with the first screwed hole 212b on first cavity volume 212.
Rotation adjusting screw 224, adjustment screw 224 can move along the first screwed hole 212b length direction, stretches in first cavity volume 212; Contact with backing plate 223, continue rotation adjusting screw 224, adjustment screw 224 roof pressure backing plates 223 move; Make stage clip 222 compression, under the effect of the pressure of stage clip 222, plug 221 moves along the length direction of first cavity volume 212; The first opening 212a that the 221a of the portion that exerts pressure of plug 221 passes first cavity volume 212 gets into support slot 211; Can exert pressure to the step axle 31 in the support slot 211, when back shaft 3 rotated, the pressure that plug 221 is applied on the step axle 31 became the frictional resistance that stops back shaft 3 to rotate.
The matching relationship of the matching relationship of second group of pressure assembly and second cavity volume and first group of pressure assembly and first cavity volume is identical; The plug 221 of second group of pressure assembly 22, stage clip 222, backing plate 223 are successively set in second cavity volume 213; Plug 221 stretches in the support slot 211 from the second opening 213a of second cavity volume 213; Adjustment screw 224 is threaded with the second screwed hole 213b on second cavity volume 213, rotation adjusting screw 224, extruding backing plate 223 and stage clip 222; Thereby can regulate the decrement of stage clip 222, change plug 221 and act on the pressure on the step axle 31.
Need to prove; The pressure of stage clip 222 should be confirmed through verification experimental verification according to employed finished weight; Act on frictional resistance sum that frictional resistance that obstruction back shaft 3 that the pressure on the step axle 31 produces rotates rotates with the obstruction back shaft that is produced by the paper roll self gravitation 3 inertia force should rotate with respect to support slot 221 with paper roll P greater than back shaft 3 time by four plugs 221 that are positioned at back shaft 3 two ends; Therefore, when not having tension, the paper roll of rolling and back shaft 3 receive the pressure of each plug 221 and the frictional resistance effect that self gravitation produces; Paper roll and back shaft 3 can stop thereupon, thereby can avoid the generation of overshooting problem.
Cover plate 23 be provided with bracing frame 21 on the corresponding connecting portion of fixed part; When the fixed part on the bracing frame 21 is fixed leg; The connecting portion of cover plate 23 is a through hole, when the fixed part on the bracing frame 21 is grab, the connecting portion of cover plate 23 be with bracing frame 21 on the claw of grab snap fit.In the present embodiment with bracing frame 21 on two first fixed legs 214 and two second fixed legs 215 corresponding; Cover plate 23 is provided with two first holes 231 and two second holes 232; Wherein two first holes 231 are corresponding with two first fixed legs 214 on the bracing frame 21, and two second holes 232 are corresponding with two second fixed legs 215 on the bracing frame 21.
When cover plate 23 with after bracing frame 21 is fixedly connected, cover plate is first cavity volume and the sealing of second cavity volume, plug 221, stage clip 222 and the backing plate 223 that prevents pressure assembly breaks away from from first cavity volume of bracing frame and/or second cavity volume.
Need to prove; In other embodiment that the utility model provides, damper assembly 2 also can not be provided with cover plate 23, and bracing frame 21 directly is fixed on left gripper shoe 11 or the right gripper shoe 12; This moment, left gripper shoe 11 or right gripper shoe 12 played the effect of cover plate 23; Thereby, reduced number of parts, reduced manufacturing cost.
Introduce the paper roll supporting mechanism course of work that the utility model provides below.
During original state, be arranged under the effect of four plug 221 each comfortable stage clips 222 of four damper assemblies 2 at back shaft 3 two ends and stretch into support slot 211.Paper roll is socketed on the back shaft 3; Make the step axle 31 at back shaft 3 two ends push two plugs 221 respectively; Each plug 221 is bounced back in first cavity volume 212 or second cavity volume 213, and when step axle 31 contacted with the bottom of support slot 211, each plug 221 was under the effect of stage clip 222; Stretch in the support slot 211, and be pressed on the step axle 31 from the both sides of back shaft 3.
Pulling paper during printing; When pulling force acts on the frictional resistance sum that obstruction back shaft 3 frictional resistance that rotates and the obstruction back shaft that is produced by the paper roll self gravitation 3 that the pressure on the step axle 31 produces rotate greater than each plug 221; Paper roll and back shaft 3 can rotate relative to support slot 211 together; Discharge paper, when printing stopped, pulling force disappeared; This moment is because back shaft 3 suffered inertia force act on the frictional resistance sum that obstruction back shaft 3 frictional resistance that rotates and the obstruction back shaft that is produced by the paper roll self gravitation 3 that the pressure on the step axle 31 produces rotates less than each plug 221; Back shaft 3 stops operating with paper roll thereupon, has avoided because overshoot causes the loose problem in paper roll outer ring, therefore can keep on the paper roll paper all the time appropriateness tightly wrap.
Damper assembly in the paper roll supporting mechanism that the utility model provides, through the adjustment adjustment screw, the decrement that can regulate stage clip, and stage clip is exerted pressure to the back shaft that supports paper roll through plug, hinders the frictional resistance that back shaft rotates thereby produce.Therefore can the suffered frictional resistance of adjustable support axle through the adjusting adjustment screw; Make suffered frictional resistance of back shaft and the paper roll inertia force when rotating suitable; Each plug acted on frictional resistance sum that obstruction back shaft frictional resistance that rotates and the obstruction back shaft that is produced by the paper roll self gravitation that the pressure on the step axle produces rotate greater than the suffered inertia force of back shaft when printing stopped; Therefore back shaft and paper roll can stop operating thereupon; Thereby avoid making the loose problem in paper roll outer ring because of effect of inertia back shaft and paper roll overshoot.
Therefore; The paper roll supporting mechanism that the utility model provides can varying in weight according to the paper roll that supports; The suffered frictional force of adjustable support axle; Avoid the loose problem of paper roll that causes because of effect of inertia, so the paper roll supporting mechanism that provides of the utility model can adapt to the paper roll of Different Weight, adaptability is strong.
Fig. 5 is the structural representation of paper roll supporting mechanism second embodiment that provides of the utility model.As shown in Figure 5; First cavity volume 212 of bracing frame 21 is set to the 3rd opening 212c away from an end of support slot 211 in the present embodiment; Second cavity volume 213 is set to the 4th opening 213c away from an end of support slot 211; And cover plate 23 is provided with first bending 233 and second bending 234 respectively corresponding to the 3rd opening 212c and the 4th opening 213c place; The 3rd screwed hole 233a and the 4th screwed hole (not drawing among the figure) are separately positioned in first bending 233 and second bending 234, and when cover plate 23 was fixedly connected with bracing frame 21, the axis of the 3rd screwed hole 233a and the 4th screwed hole was respectively at the central lines of the width of first cavity volume 212 and second cavity volume 213.
Two adjustment screw 224 respectively with cover plate 23 on the 3rd screwed hole 233a, the 4th screwed hole screw thread be in transmission connection; Rotation adjusting screw 224; The 4th opening 213c that can make two adjustment screw 224 pass the 3rd opening 212c and second cavity volume 213 of first cavity volume 212 respectively contact with backing plate 223 respectively, thus the decrement of change stage clip 222.
Present embodiment is provided with screwed hole through bending on the cover board is set in bending, make adjustment screw pass through the cover plate roof pressure on backing plate; Therefore need screwed hole be set on bracing frame, simplify the processing technology of bracing frame, simultaneously; Set up bending on the cover plate, strengthened the intensity of cover plate.
Need to prove that as shown in Figure 6 in other embodiment that the utility model provides, damper assembly 2 only is provided with one group of pressure assembly 22, correspondingly, first cavity volume 212 only is set on bracing frame 21, be used to hold pressure assembly 22.At this moment, the plug 221 of pressure assembly 22 stretches in the support slot 211 from the first opening 212a of first cavity volume 212, and from a side pressure of back shaft 3 on step axle 31, can limit back shaft 3 and break away from support slots 211.
Two plugs 221 that are positioned at back shaft 3 two ends act on frictional resistance sum that frictional resistance that obstruction back shaft 3 that the pressure on the step axle 31 produces rotates rotates with the obstruction back shaft that is produced by the paper roll self gravitation 3 inertia force should rotate with respect to support slot 221 with paper roll P greater than back shaft 3 time; Therefore; When not having tension; The frictional resistance effect that pressure that paper roll that rolls and back shaft 3 receive two plugs 221 and self gravitation produce; Paper roll and back shaft 3 can stop thereupon, can avoid the generation of overshooting problem equally.
Need to prove that in above-mentioned each embodiment of the utility model, the regulating part of regulating the decrement of stage clip 222 is not limited to adjustment screw 224, can also be other regulating part such as pad, skewback.
Fig. 7 is to use the structural representation of the printing equipment of the paper roll supporting mechanism that the utility model provides.As shown in Figure 7, printing equipment comprises paper roll supporting mechanism 100, printing mechanism 200, cut paper mechanism 300, and frame 400.
Wherein, paper roll supporting mechanism 100 is fixedly connected with frame 400, is used to support paper roll.
Printing mechanism 200 is fixedly connected with frame 400, and along sheet transport direction, printing mechanism 200 is positioned at the downstream of paper roll supporting mechanism 100.Printing mechanism 200 can be the hot print assembly; Can be print components such as pin type, ink-jet, laser also, printing mechanism 200 be the hot print assembly in the present embodiment, comprises printhead 210 and prints rubber roll 220; Both tangent settings, the paper that discharges from paper roll is from pass between the two.
Cut paper mechanism 300 is fixedly connected with frame 400, and along sheet transport direction, cut paper mechanism 300 is positioned at the downstream of printing mechanism 200.Cut paper mechanism 300 comprises the movable blade 310 and fixed blade 320 that is oppositely arranged, and the paper of having printed passes between movable blade 310 and fixed blade 320.
The control of the control module of printing equipment 200 is printed rubber roll 220 and is rotated, and drags paper, when the suffered pulling force of paper during greater than the suffered frictional resistance of back shaft 3; Paper roll and back shaft 3 rotate relative to support slot 211 together, discharge paper, simultaneously; Printhead 210 is printed predefined image or literal at paper surface, after printing finishes, and movable blade 310 relative fixed blades 320 motions of cut paper mechanism 300; Cut off paper, it is separated with paper roll.At this moment, the pulling force that acts on the paper roll disappears, the frictional resistance that back shaft 3 suffered inertia force receive less than back shaft 3, back shaft 3 stops operating with paper roll thereupon, therefore can keep on the paper roll paper all the time appropriateness tightly wrap.Because the paper roll supporting mechanism that uses the utility model to provide, can be provided with and act on the frictional resistance on the back shaft according to the varying in weight of paper roll, so the printing equipment that provides of the utility model can adapt to the paper roll of Different Weight, adaptability is strong.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims (10)

1. a paper roll supporting mechanism comprises the back shaft (3) and the bearing (1) that are used to support paper roll, it is characterized in that, also comprises being separately positioned on the damper assembly (2) that said back shaft (3) two ends were gone up and be positioned to said bearing (1), and each said damper assembly (2) comprising:
Bracing frame (21) is fixedly connected with said bearing (1), comprises the support slot (211) of the end that holds said back shaft (3);
Plug (221) is arranged on the support frame as described above (21) versatilely, and wherein, said plug (221) stretches in the said support slot (211) and with the end butt of said back shaft (211) from a side channel wall of said support slot (211) and cooperates;
Flexible member (222) is with said plug (221) butt, with the end bias voltage of said plug (221) towards said back shaft (211); And
Regulating part (224), the decrement of regulating said flexible member (222).
2. paper roll supporting mechanism according to claim 1 is characterized in that, is provided with backing plate (223) between said regulating part (224) and the said flexible member (222).
3. paper roll supporting mechanism according to claim 1 is characterized in that, support frame as described above (21) has first cavity volume (212) that holds said flexible member (222).
4. paper roll supporting mechanism according to claim 3; It is characterized in that, said plug (221) comprise the limiting section (221b) that is arranged in said first cavity volume (212) and stretch into said support slot (211) and with the portion that exerts pressure (221a) of the end butt of said back shaft (3).
5. paper roll supporting mechanism according to claim 3 is characterized in that, said damper assembly (2) also comprises with support frame as described above (21) and being fixedly connected to seal the cover plate (23) of said first cavity volume (212).
6. paper roll supporting mechanism according to claim 1 is characterized in that, the portion that exerts pressure (221a) with end butt said back shaft (3) said plug (221) tilts towards the bottom land of said support slot (211).
7. paper roll supporting mechanism according to claim 1; It is characterized in that; The said plug (221) of said damper assembly (2), said flexible member (222) and said regulating part (224) have two groups, and about the width centreline symmetric arrangement of said support slot (211).
8. paper roll supporting mechanism according to claim 7; It is characterized in that; Support frame as described above (21) has first cavity volume (212) and second cavity volume (213) that holds each said flexible member (222); Said damper assembly (2) comprises also with support frame as described above (21) and being fixedly connected to seal the cover plate (23) of said first cavity volume (212) and said second cavity volume (213) that said cover plate (23) is provided with first bending part (233) and second bending part (234), wherein; Said regulating part is an adjustment screw, is respectively equipped with the screwed hole (233a) that cooperates with said adjustment screw on said first bending part (223) and second bending part (224).
9. paper roll supporting mechanism according to claim 1 is characterized in that, said regulating part is an adjustment screw, and support frame as described above (211) is provided with the screwed hole (212b) that cooperates with said adjustment screw.
10. printing equipment; Comprise frame (400), sheet transport direction sets gradually in said frame (400) upper edge paper roll supporting mechanism (100), printing mechanism (200) and cut paper mechanism (300); It is characterized in that said paper roll supporting mechanism (100) is according to each described paper roll supporting mechanism in the claim 1 to 9.
CN2012200273378U 2012-01-20 2012-01-20 Paper roll supporting mechanism and printing device using the paper roll supporting mechanism Expired - Lifetime CN202491528U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200273378U CN202491528U (en) 2012-01-20 2012-01-20 Paper roll supporting mechanism and printing device using the paper roll supporting mechanism

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Application Number Priority Date Filing Date Title
CN2012200273378U CN202491528U (en) 2012-01-20 2012-01-20 Paper roll supporting mechanism and printing device using the paper roll supporting mechanism

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Publication Number Publication Date
CN202491528U true CN202491528U (en) 2012-10-17

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CN2012200273378U Expired - Lifetime CN202491528U (en) 2012-01-20 2012-01-20 Paper roll supporting mechanism and printing device using the paper roll supporting mechanism

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107160874A (en) * 2016-03-07 2017-09-15 深圳市博思得科技发展有限公司 The consumption material box that thermal transfer consumptive material is rolled up and rolled up including the consumptive material
CN107569153A (en) * 2017-09-25 2018-01-12 南京律智诚专利技术开发有限公司 A kind of paper drawing device based on Electromagnetic Control technology
CN107595185A (en) * 2017-09-25 2018-01-19 南京律智诚专利技术开发有限公司 A kind of paper drawing device with Electromagnetic Control technology

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107160874A (en) * 2016-03-07 2017-09-15 深圳市博思得科技发展有限公司 The consumption material box that thermal transfer consumptive material is rolled up and rolled up including the consumptive material
CN107160874B (en) * 2016-03-07 2019-07-02 深圳市博思得科技发展有限公司 Thermal transfer consumptive material volume and the consumption material box including consumptive material volume
CN107569153A (en) * 2017-09-25 2018-01-12 南京律智诚专利技术开发有限公司 A kind of paper drawing device based on Electromagnetic Control technology
CN107595185A (en) * 2017-09-25 2018-01-19 南京律智诚专利技术开发有限公司 A kind of paper drawing device with Electromagnetic Control technology

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