CN203567381U - Reel-back spindle and printer using same - Google Patents
Reel-back spindle and printer using same Download PDFInfo
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- CN203567381U CN203567381U CN201320636232.7U CN201320636232U CN203567381U CN 203567381 U CN203567381 U CN 203567381U CN 201320636232 U CN201320636232 U CN 201320636232U CN 203567381 U CN203567381 U CN 203567381U
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 30
- 229910052799 carbon Inorganic materials 0.000 claims description 30
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 8
- 238000004804 winding Methods 0.000 description 8
- 238000003801 milling Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a reel-back spindle and a printer using the same. The reel-back spindle includes a mandrel, a sleeve, support bars and an operation mechanism. The mandrel can rotate freely around the axis of the mandrel, wherein one end of the mandrel is connected with a frame of the printer while the other end is suspended. The sleeve fixedly sleeves the mandrel, is used for reeling a medium, and is provided with gateways in a surface of the sleeve. The support bars work in cooperation with the sleeve, and can penetrate through the gateways and project from the outer surface of the sleeve to form support surfaces for supporting the reeled medium. The operation mechanism is connected with the support bards and is used for driving the support bars to do radial telescopic movement along the sleeve in the gateways. Through the telescopic support surfaces which are formed on the sleeve by utilizing the operation mechanism to drive the support bars, a medium roll can be rapidly separated from the sleeve by utilizing the operation mechanism to retract the support bars into the sleeve when the wound medium roll is dismounted from the sleeve, and thus the dismounting process is simplified.
Description
Technical field
The utility model relates to a kind of printer, relates in particular to a kind of backrush axle and uses the printer of this backrush axle.
Background technology
Thermal transfer printer uses the used carbon ribbon of backrush axle backrush conventionally, and along with printing is carried out, what on backrush axle, be wound around will be more and more tighter with carbon ribbon volume, therefore, when changing carbon ribbon, exist and with carbon ribbon, will be difficult to the problem of taking off from backrush axle.In addition, printer, when Print Label, uses the lining paper of backrush axle backrush label paper conventionally, and along with printing is carried out, the lining paper being wrapped on backrush axle also will twine tighter and tighter, while changing label paper, exists equally lining paper to be difficult to the problem of taking off from backrush axle.
In order to address the above problem, prior art provides a kind of backrush axle of the media roll that can easily take off winding.As shown in Figure 1, backrush axle comprises sleeve assembly 101 and clamps supporting mechanism, wherein, clamp supporting mechanism and comprise left plate 201, right plate 202 and action bars 502, wherein, right boss 301 on left boss 302 and right plate 202 on left plate 201 is pegged graft and is coordinated with sleeve assembly 101 by two ends respectively, action bars 502 is connected with one end of back shaft 303 by bearing pin 401, and the other end of back shaft 303 is fixedly connected with left plate 201, action bars 502 passes through drive-connecting shaft 501 pivot joints with frame simultaneously, when action bars 502 is when drive-connecting shaft 501 rotates, can drive back shaft 303 by bearing pin 401, left plate 201 moves axially along sleeve assembly 101, thereby make left boss 302 separation with sleeve assembly 101.Sleeve assembly 101 comprises central shaft 102, top board 104, and top board moving assembly, wherein, top board moving assembly comprises two connecting rods 103 and spring 105, wherein, two connecting rods 103 are located at the both sides of the axis of central shaft 102, the two ends of each connecting rod 103 respectively with central shaft 102 and top board 104 pivot joints, and all can be around the pivot joint axis rotation at two ends separately, make top board 104 away from or near central shaft 102, thereby the support diameter of the winding media roll of regulating sleeve assembly 101, spring 105 is along axially placed in the middle setting of central shaft 102, for making top board 104 there is all the time the trend of moving to central shaft 102.
When sleeve assembly 101 is in running order, as shown in Figure 1, right boss 301 and left boss 302 are closely pegged graft with the end 106 of two top boards 104 of sleeve assembly 101 respectively, make each connecting rod 103 remain on erectility, top board 104 is away from central shaft 102, the now support diameter maximum of sleeve assembly 101, when need remove the media roll being wound around on sleeve assembly 101, as shown in Figure 2, pull joystick 502, action bars 502 drives left plate 201 to move, make left boss 302 separation with sleeve assembly 101, then by sleeve assembly 101 by taking off on right boss 301, now, connecting rod 103 on sleeve assembly 101 has a down dip in the effect of the elastic force of spring 105, drive two top boards 104 to central shaft 102 direction retractions, the support diameter of sleeve assembly 101 diminishes, between media roll and sleeve assembly 101, produce gap, can easily media roll be taken off from sleeve assembly 101.
The problem that this backrush axle exists is, when the medium of dismounting winding, first needing to pull action bars 502 takes off after sleeve assembly 101, and then take off the medium being wrapped on sleeve assembly 101, when continuing to use backrush axle, need manual two top boards 104 of pulling sleeve assembly 101, make it overcome the elastic force of spring 105, left boss 302 and right boss 301 could be inserted in the end 106 of two top boards 104, therefore, operate very loaded down with trivial details.
Utility model content
The printer that the purpose of this utility model is to provide a kind of backrush axle and uses this backrush axle, it can dismantle the media roll being wrapped on backrush axle quickly and easily.
For reaching this object, the utility model by the following technical solutions:
A kind of backrush axle, comprising:
The mandrel that can freely rotate around the axis of self, one end of this mandrel is connected with the frame of printer, and the other end is unsettled;
Sleeve, fixedly sleeved on described mandrel, for the medium of reeling, its surface offers gateway;
Support bar, coordinates with described sleeve, can protrude from described sleeve outer surface through described gateway and support to form the supporting surface that is wound medium;
Operating mechanism, is connected with described support bar, for driving described support bar to move along described sleeve radial expansion in described gateway.
As a kind of preferred version of backrush axle,
One end at the free end corresponding to described mandrel of described sleeve is also provided with plug, and the physical dimension of described plug is not more than the physical dimension of described sleeve, offers plug opening on described plug;
Described operating mechanism comprises:
Be parallel to the support bar of described support bar, one end of described support bar is located in described sleeve, and the other end stretches out outside described sleeve through described plug opening;
Connection rod set, comprise the first connecting rod and the second connecting rod that be arranged in parallel, the two ends of described first connecting rod are respectively by the first drive-connecting shaft and the second drive-connecting shaft and described support bar and described support bar pivot joint, and the two ends of described second connecting rod are respectively by the 3rd drive-connecting shaft and the 4th drive-connecting shaft and described support bar and described support bar pivot joint.
As a kind of preferred version of backrush axle, described operating mechanism also comprises spanner, described spanner and described support bar stretch out the end pivot joint outside described sleeve, described spanner comprises spaced first surface, second, and the articulated section between the two, described first surface has the abutment end and the operating side that lay respectively at both sides, described articulated section; Distance between the axis of described second and described articulated section is less than the distance between described abutment end and the axis of described articulated section.
As a kind of preferred version of backrush axle, in described sleeve, be provided with for driving described support bar to move so that described support bar protrudes from the back-moving spring of described sleeve outer surface, one end of described back-moving spring is connected with described sleeve, and the other end is connected with described support bar.
Further, on described support bar, have can with the stopper section of the selective butt in unsettled end of described mandrel.The selective butt in unsettled end of stopper section herein and mandrel refers to:
When needs will be wrapped on sleeve media roll dismounting, moving wrench moves right support bar, then makes the unsettled end separating of stopper section and mandrel;
When backrush axle is worked, when sleeve is wound around media roll, moving wrench is moved to the left support bar, then makes the unsettled end butt of stopper section and mandrel.
As a kind of preferred version of backrush axle, the outer face of described plug is provided with stopper, and described stopper coordinates with described abutment end, to stop described back-moving spring to drive described support bar to move so that described support bar protrudes from the outer surface of described sleeve.
When needs will be wrapped on sleeve media roll dismounting, moving wrench moves right support bar, the stopper that the outer face of the abutment end butt plug of spanner arranges, the now unsettled end separating of the stopper section of support bar and mandrel;
When backrush axle is worked, while being sleeve winding media roll, moving wrench is moved to the left support bar, the now unsettled end butt of the stopper section of support bar and mandrel, and the abutment end of spanner departs from the stopper that the outer face of plug arranges, due to the elastic force effect of back-moving spring, support bar can be subject to the thrust to mandrel, and the stopper that the outer face of plug now arranges stops support bar to continue to move to mandrel.
As a kind of preferred version of backrush axle, comprise two described support bars, described sleeve is provided with respectively and two two described gateways that described support bar is corresponding, and two described support bars are respectively the first support bar and the second support bar;
Described support bar comprises the first bar, the second bar and the 3rd bar that are set parallel to each other, and wherein, one end of described the first bar is connected with described the second bar and the 3rd bar simultaneously, and the other end of described the first bar is through described plug opening and described spanner pivot joint;
The two ends of described first connecting rod by the first drive-connecting shaft and the second drive-connecting shaft respectively with described the first support bar and described the second bar pivot joint, the two ends of described second connecting rod by the 3rd drive-connecting shaft and the 4th drive-connecting shaft respectively with described the first support bar and described the second bar pivot joint;
Described connection rod set also comprises the third connecting rod and the 4th connecting rod that be arranged in parallel, the two ends of described third connecting rod by Wushu spindle and the 6th drive-connecting shaft respectively with described the second support bar and described the 3rd bar pivot joint, the two ends of described the 4th connecting rod by the 7th drive-connecting shaft and the 8th drive-connecting shaft respectively with described the second support bar and described the 3rd bar pivot joint.
As a kind of preferred version of backrush axle, described backrush axle also comprises at least one back-up block, described back-up block comprises core hole and is positioned at the first jack of core hole one side, described back-up block is by described core hole and the socket of described mandrel, and described back-up block is by described the first jack and the socket of described support bar.
Further, at least one inserted link is set on described back-up block, described inserted link extends perpendicular to the axis in described core hole and towards the direction away from core hole, in described sleeve, corresponding to described inserted link, be provided with inserting column, described inserting column has the jack matching with described inserted link, and described inserted link is pegged graft and coordinated with described jack.
As a kind of preferred version of backrush axle, described backrush axle also comprises: driven unit;
Described driven unit comprises torsion spring, drive sleeve, and the gear being in transmission connection with the driving mechanism of described printer, described drive sleeve is socketed on the supported end of described mandrel, hold tightly on described mandrel one end of described torsion spring, the inwall tensioned fit of the other end and described drive sleeve, described drive sleeve is fixedly connected with described gear.
A kind of printer, comprising:
Paper roll supporting mechanism, for supporting or holding print media;
Printing mechanism, along the throughput direction of described print media, described printing mechanism is arranged at the downstream of described paper roll supporting mechanism, the printing rubber roller that described printing mechanism comprises printhead, is in transmission connection with driving mechanism, described printhead and the tangent setting of described printing rubber roller, described print media is by passing between the two;
Carbon ribbon mechanism, comprise the granting axle that does not use carbon ribbon volume for supporting, and backrush axle as above, along the throughput direction of carbon ribbon, described granting axle is arranged at the upstream of described printhead, described backrush axle is arranged at the downstream of described printhead, and described backrush axle is driven and rotated by driving mechanism, for reclaiming, has used carbon ribbon.
As a kind of preferred version of printer, described print media is label paper, and described printer also comprises:
Release member, for by the label peeling of described print media label paper in lining paper, along the throughput direction of described print media, described release member is arranged at the downstream of described printing mechanism;
Unreeling mechanism, for the lining paper of described print media label paper is reclaimed, along the throughput direction of lining paper, described unreeling mechanism is arranged at the downstream of described release member, described unreeling mechanism comprises paper roll backrush axle, described paper roll backrush axle adopts backrush axle as above, and described backrush axle is driven and rotated by driving mechanism, for lining paper is wound on it.
The beneficial effects of the utility model are: one end of the backrush axle that the utility model provides is supported in frame, when the media roll of dismounting winding, only need to pull spanner can make the support bar that protrudes from sleeve outer surface be retracted into sleeve inner, make to form gap between the innermost layer of backrush medium and backrush axle, to the media roll on sleeve is taken off, then only need to pull in opposite direction spanner resets spanner, can make support bar protrude from the outer surface of sleeve, form the supporting surface that supports backrush medium, compared with prior art, the backrush axle that the utility model provides operation when dismounting media roll is more simple and convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing printer gyroaxis when coiling medium;
Fig. 2 is the structural representation of the gyroaxis shown in Fig. 1 when dismounting medium;
The structural representation of the backrush axle that Fig. 3 provides for embodiment;
The section of structure of the backrush axle that Fig. 4 provides for embodiment, wherein support bar protrudes from the outer surface of sleeve;
The exploded perspective view of the backrush axle that Fig. 5 provides for embodiment;
The structure side view of the backrush axle that Fig. 6 provides for embodiment;
The partial structurtes schematic diagram of the backrush axle that Fig. 7 provides for embodiment;
The section of structure of the backrush axle that Fig. 8 provides for embodiment, wherein, support bar is retracted into the inside of sleeve;
The exploded perspective view of the driven unit of the backrush axle that Fig. 9 provides for embodiment;
Figure 10 is for the structural representation of printer one embodiment of the backrush axle that provides of the utility model is provided.
In Fig. 1 and 2:
101, sleeve assembly; 102, central shaft; 103, connecting rod; 104, top board; 105, spring; 106, end; 201, left plate; 202, right plate; 301, right boss; 302, left boss; 303, back shaft; 401, bearing pin; 501, drive-connecting shaft; 502, action bars.
In Fig. 3 to 9:
1, mandrel; 11, the first screwed hole; 12, the second screwed hole; 13, milling flat;
2, sleeve assembly; 20, sleeve; 21, the first housing; 211, the first joint pin; 212, the second joint pin; 213, the first breach; 214, inserting column; 215, the first counterbore; 216, the second counterbore; 217, jack; 22, the second housing; 221, the 3rd counterbore; 222, the 4th counterbore; 223, the second breach; 23, plug; 231, plug opening; 232, stopper; 24, side plate; 25, back-up block; 251, core hole; 252, the first jack; 253, the second jack; 254, the first inserted link; 255, the second inserted link;
3, supporting component; 31, support bar; 311, the first bar; 312, the second bar; 313, the 3rd bar; 314, intermediate bar; 32, connection rod set; 321, first connecting rod; 322, second connecting rod; 323, third connecting rod; 324, the 4th connecting rod; 33, support bar; 331, the first support bar; 332, the second support bar; 34, back-moving spring; 35, spanner; 351, articulated section; 352, first surface; 353, second; 354, abutment end; 355, operating side;
4, driven unit; 41, torsion spring; 411, thin portion; 412, thick portion; 42, drive sleeve; 421, the first sleeve; 422, the second sleeve; 43, gear;
5, gateway;
61, the first drive-connecting shaft; 62, the second drive-connecting shaft; 63, the 3rd drive-connecting shaft; 64, the 4th drive-connecting shaft; 65, Wushu spindle; 66, the 6th drive-connecting shaft; 67, the 7th drive-connecting shaft; 68, the 8th drive-connecting shaft.
In Figure 10:
100, paper roll supporting mechanism; 200, printing mechanism; 210, printhead; 220, printing rubber roller; 300, carbon ribbon mechanism; 310, provide axle; 320, backrush axle; 400, release member; 500, unreeling mechanism; 510, paper roll backrush axle.
The specific embodiment
Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate the technical solution of the utility model.
As shown in Figure 3, Figure 4, the backrush axle that the utility model provides comprises mandrel 1, sleeve assembly 2, and supporting component 3.Wherein, mandrel 1 has the length of setting, its one end is supported by the frame (not shown) of printer, the other end is unsettled, mandrel 1 can freely rotate around the axis of self, the axis that is arranged at intervals with the first screwed hole 11 and the second screwed hole 12, the first screwed holes 11 and the second screwed hole 12 along the axially parallel of mandrel 1 all with the intersect vertical axis of mandrel 1.Preferably, the milling flat 13(that is also provided with two opposing parallel and interval preset distance on mandrel 1 is shown in Fig. 5), two milling flats 13 extending axially along mandrel 1, and the axis about mandrel 1 is symmetrical arranged, meanwhile, two milling flats 13 are also vertical with the axis of the second screwed hole 12 with the first screwed hole 11.
In the present embodiment, sleeve 20 comprises symmetrically arranged the first housing 21 of axis and the second housing 22 about mandrel 1, the first housing 21 is fixedly connected with mandrel 1 by the both sides of mandrel 1 respectively with the second housing 22, inner side at the first housing 21 is arranged at intervals with the first joint pin 211 and the second joint pin 212 along the axially parallel of mandrel 1, the first joint pin 211 and the second joint pin 212 are all perpendicular to the axial setting of mandrel 1, wherein, in the first joint pin 211, be coaxially arranged with the first counterbore 215, in the second joint pin 212, be coaxially arranged with the second counterbore 216, the end face of the first joint pin 211 and the second joint pin 211 all coordinates with milling flat 13 butts of mandrel 1, simultaneously, the first counterbore 215 is relative with the second screwed hole 12 with the first screwed hole 11 on mandrel 1 respectively with the second counterbore 216, use two securing members (as screw) to pass respectively the first counterbore 215 by the first housing 21 outsides, the second counterbore 216 is threaded with the first screwed hole 11 and the second screwed hole 12, thereby the first housing 21 is fixed on mandrel 1, inner side at the second housing 22 is arranged at intervals with the 3rd joint pin (not shown) and the 4th joint pin (not shown) along the axially parallel of mandrel 1, the 3rd joint pin and the 4th joint pin are all perpendicular to the axial setting of mandrel 1, wherein, on the 3rd joint pin, be provided with the 3rd counterbore 221, on the 4th joint pin, be provided with the 4th counterbore 222, the end face of the 3rd joint pin and the 4th joint pin all coordinates with another milling flat 13 butts of mandrel 1, simultaneously, the 3rd counterbore 221 is relative with the second screwed hole 12 with the first screwed hole 11 on mandrel 1 respectively with the 4th counterbore 222, use two securing members (as screw) to pass respectively the 3rd counterbore 221 by the second housing 22 outsides, the 4th counterbore 222 is threaded with the first screwed hole 11 and the second screwed hole 12, the second housing 22 is fixed on mandrel 1, thereby sleeve 20 is fixed on mandrel 1.
On two edges of the first housing 21, be respectively arranged with two the first breach 213, its length extends axially along sleeve 20, on two edges of the second housing 22, be respectively arranged with two the second breach 223, its length direction extends axially along sleeve 20, after the first housing 21 is fixedly connected with mandrel 1 with the second housing 22, each the first adjacent breach 213 and the second breach 223 form altogether two rectangular gateway 5(and see Fig. 3), two gateways 5 are symmetrical arranged about the axis of mandrel 1.
Supporting component 3 is connected with sleeve assembly 2, is used to form the telescopic supporting surface that supports backrush medium.Supporting component 3 comprises support bar 31, connection rod set 32, at least one support bar 33, back-moving spring 34, and spanner 35.
Connection rod set 32 at least comprises first connecting rod 321 and 322 two connecting rods of second connecting rod, the two ends of first connecting rod 321 by the first drive-connecting shaft 61 and the second drive-connecting shaft 62 respectively with support bar 33 and support bar 31 pivot joints, the two ends of second connecting rod 322 by the 3rd drive-connecting shaft 63 and the 4th drive-connecting shaft 64 respectively with support bar 33 and support bar 31 pivot joints, and the distance between the second drive-connecting shaft 62 and the 4th drive-connecting shaft 64 equals the distance between the first drive-connecting shaft 61 and the 3rd drive-connecting shaft 63, therefore first connecting rod 321, support bar 33, second connecting rod 322, and support bar 31 4 forms parallelogram, wherein, when the stopper section of support bar 31 contacts with mandrel 1, each connecting rod keeps vertical state, distance maximum between support bar 33 and mandrel 1.Support bar 33 is rectangular structure, its length extends axially along sleeve 20, height is along the radially extension of sleeve 20, and length and the width of the gateway 5 on the length of support bar 33 and width and sleeve 20 are suitable, and the height of support bar 33 is greater than the barrel thickness of sleeve 20.Support bar 33 coordinates with the gateway 5 on sleeve 20, when along sleeve 20 move axially support bar 31 time, first connecting rod 321 and second connecting rod 322 are around the pivot joint axis rotation at two ends separately, drive support bar 33 to move, be subject to the restriction of the gateway 5 coordinating with support bar 33, support bar 33 can only move along oneself height direction, through the gateway 5 being mated, protrudes from the outer surface of sleeve 20 or is retracted in sleeve 20.
Spanner 35 comprises spaced first surface 352, second 353 and the articulated section between the two 351, and wherein, first surface 352 has the abutment end 354 and the operating side 355 that lay respectively at 351 both sides, articulated section; Distance between the axis of second 353 and articulated section 351 is less than the distance between the abutment end 354 of first surface 352 and the axis of articulated section 351.One end pivot joint that articulated section 351 and the support bar 31 of spanner 35 stretches out plug 23, spanner 35 can rotate around the axis of articulated section 351, with respect to plug 23, has closing position and open position.Wherein, when spanner 35 is positioned at closing position, as shown in Figure 4, and second 353 and the end contact of plug 23 of spanner 35, each connecting rod is in vertical state, and support bar 33 protrudes from the outer surface of sleeve 20 through the gateway 5 on sleeve 20; When spanner 35 is in an open position, as shown in Figure 8, the abutment end 354 of the first surface 352 of spanner 35 and the end contact of plug 23, because the distance between the axis of second 353 and articulated section 351 is less than the distance between the abutment end 354 of first surface 352 and the axis of articulated section 351, therefore, the articulated section 351 of spanner 35 is to the direction motion away from plug 23, move with the support bar 31 of spanner 35 pivot joints thereupon, now, each connecting rod is around the pivot joint axis rotation at two ends separately, drive support bar 33 to the direction motion near mandrel 1, be retracted into the inside of sleeve 20.
Back-moving spring 34 is positioned at the inside of sleeve assembly 2, for support bar 31 is had all the time to the trend of side plate 24 direction motions, thereby the stopper section of support bar 31 is contacted with mandrel 1 end, make each connecting rod remain on vertical state, support bar 33 protrudes from the outer surface of sleeve 20.Preferably, on the end face of plug 23, be provided with stopper 232(and see Fig. 8), when spanner 35 is positioned at open position, stopper 232 coordinates with the abutment end 354 of spanner 35, stop spanner 35 to turn back to closing position under the effect of back-moving spring 34, thereby can stop support bar 31 to side plate 24 direction motions.
In the present embodiment, support bar 33 has two, respectively the first support bar 331 and the second support bar 332, support bar 31 comprises the first bar 311, the second bar 312, the 3rd bar 313, and intermediate bar 314, wherein, the first bar 311, the second bar 312, the 3rd bar 313 threes are parallel to each other, and equate along mandrel 1 spaced radial distance, the second bar 312 and the 3rd bar 313 are positioned at the same side of intermediate bar 314, both respectively with vertical connection of two ends of intermediate bar 314 length directions, the first bar 311 is with respect to the second bar 312, the 3rd bar 313 is positioned at the opposite side of intermediate bar 314, the vertical connection of middle part of one end of the first bar 311 and intermediate bar 314, the other end of the first bar 311 is rear and spanner 35 pivot joints through the plug opening 231 on plug 23, when support bar 31 is during along the moving axially of mandrel 1, the end of intermediate bar 314 can contact with the end of mandrel 1 or be separation, be in the present embodiment, stopper section is the end of intermediate bar 314, connection rod set 32 comprises first connecting rod 321, second connecting rod 322, third connecting rod 323, and the 4th connecting rod 324, wherein, the two ends of first connecting rod 321 are by the first drive-connecting shaft 61 and the second drive-connecting shaft 62 and the first support bar 331 and the second bar 312 pivot joints, the two ends of second connecting rod 322 by the 3rd drive-connecting shaft 63 and the 4th drive-connecting shaft 64 respectively with the first support bar 331 and the second bar 312 pivot joints, the two ends of third connecting rod 323 are by Wushu spindle 65 and the 6th drive-connecting shaft 66 the second support bar 332 and the 3rd bar 313 pivot joints respectively, the two ends of the 4th connecting rod 324 by the 7th drive-connecting shaft 67 and the 8th drive-connecting shaft 68 respectively with the second support bar 332 and the 3rd bar 313 pivot joints.Third connecting rod 323 and the 4th connecting rod 324 all can be around the pivot joint axis rotations at two ends separately, and the distance between the 6th drive-connecting shaft 66 and the 8th drive-connecting shaft 68 equals the distance between Wushu spindle 65 and the 7th drive-connecting shaft 67, therefore third connecting rod 323, the second support bar 332, the 4th connecting rod 324, and the 3rd bar 313 4 forms parallelogram.
The first support bar 331 and the second support bar 332 are symmetrical arranged about the axis of sleeve 20, when along sleeve 20 move axially support bar 31 time, first connecting rod 321, second connecting rod 322, third connecting rod 323, and the 4th connecting rod 324 around the pivot joint axis at two ends separately, rotate, drive the first support bar 331 and the second support bar 332 along oneself height direction, to move respectively, through gateway 5, protrude from the outer surface of sleeve 20 or be retracted in sleeve 20.As shown in Figure 6, form symmetrically arranged two supporting surfaces of axis about mandrel 1 when the first support bar 331 and the second support bar 332 all protrude from the outer surface of sleeve 20, the distance between two supporting surfaces is greater than the external diameter of sleeve 20.
Back-moving spring 34 is stage clip, is socketed on the first bar 311 of support bar 31, and its one end contacts with the internal end surface of plug 23, and the other end is connected with the intermediate bar 314 of support bar 31.
On spanner 35 is in the close position, under the effect of the elastic force of back-moving spring 34, the end of the intermediate bar 314 of support bar 31 contacts with the end of mandrel 1, four connecting rods are in vertical state, the first support bar 331 and the second support bar 332 protrude from respectively the outer surface of sleeve 20, have formed symmetrically arranged two the supporting surface (see figure 6)s of axis about mandrel 1; When spanner 35 is in an open position, four connecting rods are around the pivot joint axis rotation at two ends separately, and the first support bar 331 and the second support bar 332, to the direction motion near mandrel 1, are retracted into the inside of sleeve 20.
Further, supporting component also comprises at least one back-up block 25, can only be along the axially-movable of mandrel 1 for guide support bar 31.In the present embodiment, back-up block 25 comprises core hole 251, the first jack 252, and second jack 253, three's axis is set parallel to each other, wherein, the first jack 252 and the second jack 253 are symmetrical arranged about core hole 251, distance between the second bar 312 and the 3rd bar 313 of distance between the two and support bar 31 is suitable, core hole 251 coordinates with mandrel 1 socket, the first jack 252 coordinates with the second bar 312 sockets of support bar 31, the second jack 253 coordinates with the 3rd bar 312 sockets of support bar 31, under the first jack 252 of back-up block 25 and the restriction of the second jack 253, the second bar 312 and the 3rd bar 313 of support bar 31 can only moving axially along mandrel 1.By the second bar 312 and the 3rd bar 313 of back-up block 25 supported bars 31 are set, can avoid the free end generation strain of the second bar 312 and the 3rd bar 313, thereby guarantee that support bar 31 is reliable, smooth and easy along the axially-movable of mandrel 1.
Further, on back-up block 25, be also provided with about symmetrically arranged the first inserted link 254 in core hole 251 and the second inserted link 255, the first inserted link 254 and the second inserted link 255 extend perpendicular to the axis in core hole 251 and to the direction away from core hole 251, inside at the first housing 21 and the second housing 22 is all provided with inserting column 214 accordingly, on inserting column 214, be provided with jack 217, the first inserted link 254 of back-up block 25 and the second inserted link 255 are pegged graft and are coordinated with the jack 217 on the jack 217 on the inserting column 214 of the first housing 21 and the inserting column 214 on the second housing 22 respectively, can limit the position of back-up block 25 on mandrel 1 is axial, can also stop the rotation of back-up block 25 around mandrel 1 simultaneously, make the second bar 312 and the 3rd bar 313 of support bar 31 peg graft convenient and swift with the first jack 252 and second jack 253 of back-up block 25.In the present embodiment, supporting component comprises two back-up blocks 25, the inside of the first housing 21 and the second housing 22 along its axially spaced-apart, be provided with 214, two back-up blocks 25 of two inserting columns successively with mandrel 1 socket after, peg graft and coordinate with the jack 217 of two inserting columns 214 respectively.
Further, backrush axle also comprises driven unit 4, for driving backrush axle around self axis rotation.As shown in Fig. 4, Fig. 9, driven unit 4 comprises torsion spring 41, drive sleeve 42, and gear 43, wherein, drive sleeve 42 is socketed on one end that mandrel 1 closes on frame, can freely rotate around the axis of mandrel 1, drive sleeve 42 comprises the first sleeve 421 and the second sleeve 422 that are coaxially fixedly connected with, and wherein, the external diameter of the first sleeve 421 is greater than the external diameter of the second sleeve 422, the first sleeve 421 has the internal diameter of setting, and the external diameter of the internal diameter of the second sleeve 422 and mandrel 1 is suitable; Torsion spring 41 is socketed with mandrel 1, and between the first sleeve 421 and mandrel 1, torsion spring 41 comprises the thin portion 411 and the thick portion 412 that arrange along its length, wherein, the internal diameter of thin portion 411 is slightly less than the external diameter of mandrel 1, the external diameter of thick portion 412 is slightly larger than the internal diameter of the first sleeve 421, the thin portion 411 that is torsion spring 41 holds tightly on mandrel 1, thick portion 412 coordinates with the inwall tensioner of the first sleeve 421, and the frictional force between the outer wall of torsion spring 41 and mandrel 1 and the inwall of the first sleeve 421 is greater than the pulling force while being wound around medium; Gear 43 is fixedly sleeved on the second sleeve 422 of drive sleeve 42, be in transmission connection with the driving mechanism of printer, when the driving mechanism driven wheel 43 of printer rotates, the second sleeve 422 rotates thereupon, by the frictional force between torsion spring 1 and the first sleeve 421 and mandrel 1, can be with moving mandrel 1 to synchronize rotation thereupon, mandrel 1 drives sleeve assembly 2 to rotate, and is wound around medium; When the rotary resistance of mandrel 1 is greater than the frictional force between torsion spring 1 and the first sleeve 421 and mandrel 1, torsion spring 1 skids with respect to the inwall of mandrel 1 or the first sleeve 421, gear 43 dallies, and can avoid due to the excessive damage that the driving mechanism of printer is caused of load.
Below in conjunction with Fig. 4 and Fig. 8, introduce the course of work of the backrush axle that the utility model provides.
During backrush axle coiling medium, as shown in Figure 4, spanner 35 is in the close position, each connecting rod is in vertical state, and the first support bar 331 and the second support bar 332 all protrude from the outer surface of sleeve 20, forms two supporting surfaces, when the driving mechanism driven wheel 43 of printer rotates, by drive sleeve 42 and torsion spring 41, be with moving mandrel 1 to rotate, thereby sleeve assembly 2 rotates thereupon, medium is wrapped on sleeve 20 and two supporting surfaces.
In the time need to unloading the media roll of backrush on backrush axle, as shown in Figure 8, first, pull along the direction of arrow in the figure spanner 35, make spanner 35 turn to open position, support bar 31 is thereupon to the direction motion away from side plate 24, drive each connecting rod around the pivot joint axis rotation at two ends separately, make the first support bar 331 and the second support bar 332 under the restriction of gateway 5, be retracted into the inside of sleeve 20, thereby make to occur gap between the innermost layer of backrush medium and sleeve 20, therefore can easily backrush medium be taken off from sleeve 20.
After backrush medium takes off, rightabout along direction shown in arrow in Fig. 8 is pulled spanner 35, make spanner 35 turn to closing position, support bar 31 moves to the direction near side plate 24 under the effect of the elastic force of back-moving spring 34, each connecting rod turns to vertical state around the pivot joint axis at two ends separately, make the first support bar 331 and the second support bar 332 again protrude from the outer surface of sleeve 20, form two supporting surfaces, wait next volume medium to be wound.
One end of the backrush axle that the utility model provides is supported in frame, when the media roll of dismounting winding, only need to pull spanner 35 can make the support bar 33 that protrudes from sleeve 20 outer surfaces be retracted into sleeve 20 inside, make to form gap between the innermost layer of backrush medium and backrush axle, to the media roll on sleeve 20 is taken off, then only need to pull in opposite direction spanner 35 resets spanner 35, can make support bar 33 protrude from the outer surface of sleeve 20, form the supporting surface that supports backrush medium, compared with prior art, the backrush axle that the utility model provides operation when dismounting media roll is more simple and convenient.
Figure 10 is the section of structure that printer one embodiment of the backrush axle that provides of the utility model is provided.As shown in figure 10, printer comprises paper roll supporting mechanism 100, printing mechanism 200, carbon ribbon mechanism 300, release member 400, unreeling mechanism 500, and driving mechanism (not shown).Wherein, paper roll supporting mechanism 100 is for supporting print media, and paper roll supporting mechanism 100 can be that bracing frame can be also paper storehouse, and in the present embodiment, paper roll supporting mechanism 100 is bracing frame, and print media can be continuous roll web, can be also continuous label paper.
Along the throughput direction of print media, printing mechanism 200 is positioned at paper roll supporting mechanism 100 downstreams, for print predefined print What on print media.Printing mechanism 200 comprises printhead 210 and the printing rubber roller 220 of tangent setting, print media is by passing between the two, wherein, printing rubber roller 220 is in transmission connection with driving mechanism, under the driving of driving mechanism, around self axis rotation, can drive the print media between printhead 210 and printing rubber roller 220 to carry to the downstream of printing mechanism 200.
Along the throughput direction of print media, release member 400 is arranged on the downstream of printing mechanism 200, for label being stripped down from lining paper when the printer Print Label paper.In the present embodiment, release member is axle shape, and in other embodiments, it is tabular that release member can be.
Along the throughput direction of lining paper, unreeling mechanism 500 is positioned at the downstream of release member 400, for reclaiming the lining paper of label paper.Unreeling mechanism 500 comprises paper roll backrush axle 510, and paper roll backrush axle 510 is in transmission connection with driving mechanism, under the driving of driving mechanism, can rotate around self axis, and lining paper is wrapped on paper roll backrush axle 510.The structure of paper roll backrush axle 510 and the operation principle backrush axle described in above-described embodiment, does not repeat them here.
During original state, the spanner 35 of backrush axle 320 and paper roll backrush axle 510 is all in the close position, and both each support bars all protrude from the outer surface setting of sleeve.
When printer is printed, if the print media using is continuous roll web, driving mechanism drives printing rubber roller 220 and backrush axle 320 to rotate, printing rubber roller 220 fed printing sheet and carbon ribbon are to the downstream motion of printing mechanism 200, the used carbon ribbon of backrush axle 320 backrush, meanwhile, the heating of the heater element of printhead 210, the dye transfer in the coat side of carbon ribbon to printing paper.In the time need to unloading carbon ribbon on backrush axle 320 volume, spanner 35 is pulled to open position, then, by the batching down with carbon ribbon of the winding on backrush axle 320, finally spanner is turned to closing position, wait for next time and printing.
If the print media that printer uses is continuous label paper, driving mechanism drives printing rubber roller 220, backrush axle 320, and paper roll backrush axle 510 rotates, printing rubber roller 220 carries label paper and carbon ribbon to move to the downstream of printing mechanism 200, the heater element heating of printhead 210, the dye transfer in the coat side of carbon ribbon to printing paper, the simultaneously used carbon ribbon of backrush axle 320 backrush, paper roll backrush axle 510 backrush lining papers.In the time need to unloading carbon ribbon on backrush axle 320 or paper roll backrush axle 510 volume or lining paper volume, spanner 35 on backrush axle 320 or paper roll backrush axle 510 is pulled to open position, then carbon ribbon volume or lining paper batch down, finally spanner are turned to closing position, wait for next time and printing.
The backrush axle that printer in the present embodiment all uses the utility model to provide the carbon ribbon having used and lining paper, simple to operation when unloading media roll, therefore improved the ease for use of printer.
" first " of the present utility model, " second ", " the 3rd ", " the 4th ", " the 5th ", " the 6th ", " the 7th ", " 8th " etc., only, for being distinguished on describing, do not have special implication.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.
Claims (12)
1. a backrush axle, is characterized in that, comprising:
The mandrel that can freely rotate around the axis of self, one end of this mandrel is connected with the frame of printer, and the other end is unsettled;
Sleeve, fixedly sleeved on described mandrel, for the medium of reeling, its surface offers gateway;
Support bar, coordinates with described sleeve, can protrude from described sleeve outer surface through described gateway and support to form the supporting surface that is wound medium;
Operating mechanism, is connected with described support bar, for driving described support bar to move along described sleeve radial expansion in described gateway.
2. backrush axle according to claim 1, is characterized in that,
One end at the free end corresponding to described mandrel of described sleeve is also provided with plug, and the physical dimension of described plug is not more than the physical dimension of described sleeve, offers plug opening on described plug;
Described operating mechanism comprises:
Be parallel to the support bar of described support bar, one end of described support bar is located in described sleeve, and the other end stretches out outside described sleeve through described plug opening;
Connection rod set, comprise the first connecting rod and the second connecting rod that be arranged in parallel, the two ends of described first connecting rod are respectively by the first drive-connecting shaft and the second drive-connecting shaft and described support bar and described support bar pivot joint, and the two ends of described second connecting rod are respectively by the 3rd drive-connecting shaft and the 4th drive-connecting shaft and described support bar and described support bar pivot joint.
3. backrush axle according to claim 2, it is characterized in that, described operating mechanism also comprises spanner, described spanner and described support bar stretch out the end pivot joint outside described sleeve, described spanner comprises spaced first surface, second, and the articulated section between the two, described first surface has the abutment end and the operating side that lay respectively at both sides, described articulated section; Distance between the axis of described second and described articulated section is less than the distance between described abutment end and the axis of described articulated section.
4. backrush axle according to claim 3, it is characterized in that, in described sleeve, be provided with for driving described support bar to move so that described support bar protrudes from the back-moving spring of described sleeve outer surface, one end of described back-moving spring is connected with described sleeve, and the other end is connected with described support bar.
5. backrush axle according to claim 4, it is characterized in that, the outer face of described plug is provided with stopper, and described stopper coordinates with described abutment end, to stop described back-moving spring to drive described support bar to move so that described support bar protrudes from the outer surface of described sleeve.
6. according to the backrush axle described in claim 2 to 5 any one, it is characterized in that,
Comprise two described support bars, described sleeve is provided with respectively and two two described gateways that described support bar is corresponding, and two described support bars are respectively the first support bar and the second support bar;
Described support bar comprises the first bar, the second bar and the 3rd bar that are set parallel to each other, and wherein, one end of described the first bar is connected with described the second bar and the 3rd bar simultaneously, and the other end of described the first bar is through described plug opening and described spanner pivot joint;
The two ends of described first connecting rod by the first drive-connecting shaft and the second drive-connecting shaft respectively with described the first support bar and described the second bar pivot joint, the two ends of described second connecting rod by the 3rd drive-connecting shaft and the 4th drive-connecting shaft respectively with described the first support bar and described the second bar pivot joint;
Described connection rod set also comprises the third connecting rod and the 4th connecting rod that be arranged in parallel, the two ends of described third connecting rod by Wushu spindle and the 6th drive-connecting shaft respectively with described the second support bar and described the 3rd bar pivot joint, the two ends of described the 4th connecting rod by the 7th drive-connecting shaft and the 8th drive-connecting shaft respectively with described the second support bar and described the 3rd bar pivot joint.
7. according to the backrush axle described in claim 2 to 5 any one, it is characterized in that, also comprise at least one back-up block, described back-up block comprises core hole and is positioned at the first jack of core hole one side, described back-up block is by described core hole and the socket of described mandrel, and described back-up block is by described the first jack and the socket of described support bar.
8. according to the backrush axle described in claim 1 to 5 any one, it is characterized in that,
Described backrush axle also comprises: driven unit;
Described driven unit comprises torsion spring, drive sleeve, and the gear being in transmission connection with the driving mechanism of described printer, described drive sleeve is socketed on the supported end of described mandrel, hold tightly on described mandrel one end of described torsion spring, the inwall tensioned fit of the other end and described drive sleeve, described drive sleeve is fixedly connected with described gear.
9. backrush axle according to claim 6, is characterized in that,
Described backrush axle also comprises: driven unit;
Described driven unit comprises torsion spring, drive sleeve, and the gear being in transmission connection with the driving mechanism of described printer, described drive sleeve is socketed on the supported end of described mandrel, hold tightly on described mandrel one end of described torsion spring, the inwall tensioned fit of the other end and described drive sleeve, described drive sleeve is fixedly connected with described gear.
10. backrush axle according to claim 7, is characterized in that,
Described backrush axle also comprises: driven unit;
Described driven unit comprises torsion spring, drive sleeve, and the gear being in transmission connection with the driving mechanism of described printer, described drive sleeve is socketed on the supported end of described mandrel, hold tightly on described mandrel one end of described torsion spring, the inwall tensioned fit of the other end and described drive sleeve, described drive sleeve is fixedly connected with described gear.
11. 1 kinds of printers, is characterized in that, comprising:
Paper roll supporting mechanism, for supporting or holding print media;
Printing mechanism, along the throughput direction of described print media, described printing mechanism is arranged at the downstream of described paper roll supporting mechanism, the printing rubber roller that described printing mechanism comprises printhead, is in transmission connection with driving mechanism, described printhead and the tangent setting of described printing rubber roller, described print media is by passing between the two;
Carbon ribbon mechanism, comprise the granting axle that does not use carbon ribbon volume for supporting, and the backrush axle as described in claim 1 to 10 any one, along the throughput direction of carbon ribbon, described granting axle is arranged at the upstream of described printhead, described backrush axle is arranged at the downstream of described printhead, and described backrush axle is driven and rotated by driving mechanism, for reclaiming, has used carbon ribbon.
12. printers according to claim 11, is characterized in that, described print media is label paper, and described printer also comprises:
Release member, for by the label peeling of described print media label paper in lining paper, along the throughput direction of described print media, described release member is arranged at the downstream of described printing mechanism;
Unreeling mechanism, for the lining paper of described print media label paper is reclaimed, along the throughput direction of lining paper, described unreeling mechanism is arranged at the downstream of described release member, described unreeling mechanism comprises paper roll backrush axle, described paper roll backrush axle adopts the backrush axle as described in claim 1 to 8 any one, and described backrush axle is driven and rotated by driving mechanism, for lining paper is wound on it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320636232.7U CN203567381U (en) | 2013-10-15 | 2013-10-15 | Reel-back spindle and printer using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320636232.7U CN203567381U (en) | 2013-10-15 | 2013-10-15 | Reel-back spindle and printer using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203567381U true CN203567381U (en) | 2014-04-30 |
Family
ID=50535133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320636232.7U Expired - Lifetime CN203567381U (en) | 2013-10-15 | 2013-10-15 | Reel-back spindle and printer using same |
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| Country | Link |
|---|---|
| CN (1) | CN203567381U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608508A (en) * | 2015-01-19 | 2015-05-13 | 苏州佳世达电通有限公司 | Roller device and a label printer |
| CN106185408A (en) * | 2016-08-29 | 2016-12-07 | 苏州澄富包装设备有限公司 | Around band rewinder |
| CN106904471A (en) * | 2017-02-28 | 2017-06-30 | 厦门汉印电子技术有限公司 | A kind of backrush axle and its printer with automatic loose configuration |
| CN117696484A (en) * | 2024-01-05 | 2024-03-15 | 广州埃特尼特建筑系统有限公司 | Panel belt cleaning device |
-
2013
- 2013-10-15 CN CN201320636232.7U patent/CN203567381U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608508A (en) * | 2015-01-19 | 2015-05-13 | 苏州佳世达电通有限公司 | Roller device and a label printer |
| CN106185408A (en) * | 2016-08-29 | 2016-12-07 | 苏州澄富包装设备有限公司 | Around band rewinder |
| CN106904471A (en) * | 2017-02-28 | 2017-06-30 | 厦门汉印电子技术有限公司 | A kind of backrush axle and its printer with automatic loose configuration |
| CN117696484A (en) * | 2024-01-05 | 2024-03-15 | 广州埃特尼特建筑系统有限公司 | Panel belt cleaning device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
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| CX01 | Expiry of patent term |