CN203004531U - Thermal transfer printer - Google Patents
Thermal transfer printer Download PDFInfo
- Publication number
- CN203004531U CN203004531U CN 201320013316 CN201320013316U CN203004531U CN 203004531 U CN203004531 U CN 203004531U CN 201320013316 CN201320013316 CN 201320013316 CN 201320013316 U CN201320013316 U CN 201320013316U CN 203004531 U CN203004531 U CN 203004531U
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- backing plate
- printing paper
- thermal transfer
- transfer printer
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Abstract
The utility model discloses a thermal transfer printer, which comprises a rack and a printing assembly arranged on the rack. The printing assembly comprises a base plate and a thermal printing head, wherein the base plate extends along the width direction of printing paper, and the thermal printing head is opposite to the base plate and can move along the length direction of the base plate. Along the delivery direction of the printing paper, the upstream side and the downstream side of the base plate are provided with delivery roller sets which clamp and deliver the printing paper so as to enable the printing paper to keep close to the base plate. The thermal transfer printer disclosed by the utility model solves the problem that printed images are not clear because of vibration of the printing paper in a moving process of the thermal printing head, and ensures the printing quality.
Description
Technical field
The utility model relates to a kind of thermal transfer printer.
Background technology
Thermal transfer printer is used widely owing to having the advantages such as print speed is fast, print image is clear, the holding time is long.Print components in common thermal transfer printer comprises thermal printer head and the printing rubber roller of tangent setting, wherein, the width of thermal printer head extends along the width of printing paper, thermal printer head comprises a plurality of heat-generating units that are arranged in delegation along the width of thermal printer head, and the quantity of heat-generating units is directly proportional to the width of thermal printer head.Printing paper is passed between the two by thermal printer head and printing rubber roller, and around self axis rotation, during the downstream transport printing paper, thermal printer head is at the writings and image of printing paper printout surface setting under the driving of printing rubber roller at driven unit.The position of this thermal transfer printer thermal printer head when printing is fixed, the maximum printing width that it can be supported and the width of thermal printer head coupling, when needs increase print span, can only be by increasing the quantity of heat-generating units, the width that namely increases thermal printer head is realized, therefore can not adapt to the printing demand of the printing demand, particularly super wide format of any width breadth.
US Patent No. 4,665,407 provide a kind of thermal transfer printer, because the thermal printer head of this thermal transfer printer can move along the width of printing paper, therefore can satisfy the printing requirement of any width breadth.As shown in Figure 1, this thermal transfer printer comprises backing plate 2 ', bracing frame 6 ', the axis of guide 7 ', print components 8 ', and wherein backing plate 2 is used for supporting printing paper 5 '; Bracing frame 6 ' and the axis of guide 7 ' all extend along the length direction of backing plate 2 ', are used for supporting and guiding print components 8 ' to move along the length direction of backing plate 2 '; The cog belt 10 ' that print components 8 ' is in transmission connection by motor 9 ' and with motor 9 ' drives, and can move axially along the axis of guide 7 '.print components 8 ' comprises thermal printer head 12 ', carbon ribbon provides axle and carbon ribbon reclaims axle, wherein, thermal printer head 12 ' coordinates with backing plate 2 ' is tangent, comprise a plurality of heat-generating units that are arranged in delegation along the printing paper throughput direction, printing paper 5 ' is entering under the driving of conveying roller 4 ' between thermal printer head 12 ' and backing plate 2 ', untapped carbon ribbon 27 ' is provided axle by carbon ribbon and is drawn, being wrapped in carbon ribbon through backrush after thermal printer head 12 ' reclaims on axle, when print components 8 ' is mobile along the axis of guide 7 ', thermal printer head 12 ' is printed on the surface of printing paper 5 ', carbon ribbon reclaims axle and reclaims simultaneously carbon ribbon 27 '.Therefore, this thermal transfer printer can by controlling the displacement of print components 8 ', obtain the print span that needs.
But this thermal transfer printer is in print procedure, and there is unsharp problem in the print image of printing paper.The applicant finds, the print image of printing paper unintelligible with printing paper the shake in print procedure relevant.Particularly, this thermal transfer printer is in print procedure, printing paper 5 ' is pressed in it on backing plate 2 ' by the thermal printer head 12 ' in motion, printing paper 5 ' is easily shaken in thermal printer head 12 ' motion process, therefore, may cause printing paper 5 ' wrinkling or contact with thermal printer head 12 ' unreliable, thereby cause the unsharp problem of print image.
The utility model content
The purpose of this utility model is to provide a kind of thermal transfer printer, to overcome the unsharp problem of print image.
For this reason, the utility model provides a kind of thermal transfer printer, comprise frame and the print components that arranges on frame, wherein, print components comprise backing plate that length extends along the width of printing paper with backing plate relative to and the thermal printer head that can move along the length direction of backing plate, the conveying roller group that is respectively equipped with clamping and fed printing sheet in upstream side and the downstream of backing plate along the printing paper throughput direction so that printing paper be close on backing plate.
Further, along the short transverse of backing plate, the drive roll of the drive roll of each conveying roller group or each conveying roller group concordant with the supporting surface of backing plate with the points of tangency of driven voller and the points of tangency of driven voller are positioned at a side that deviates from thermal printer head of supporting surface.
Further, above-mentioned print components also comprises the supporting seat that supports backing plate, and the supporting surface of backing plate protrudes from supporting seat, and is respectively arranged with chamfering along the both sides of the supporting surface of printing paper throughput direction backing plate.
Further, be positioned at the rotating speed of drive roll of conveying roller group of upstream side of backing plate more than or equal to the rotating speed of the drive roll of the conveying roller group in the downstream that is positioned at backing plate.
Further, above-mentioned print components also be included in arrange on frame along the slide of the width slip of printing paper and the carbon ribbon that arranges on slide is provided axle and carbon ribbon reclaims axle, wherein, thermal printer head is arranged on slide, along the glide direction of slide, thermal printer head is provided between axle and carbon ribbon recovery axle at carbon ribbon.
Further, also be provided with printhead on above-mentioned slide and lift part.
Further, be arranged with first axis of guide and second axis of guide on above-mentioned frame in parallel, slide has opening guide groove and guide hole, and opening guide groove and first axis of guide are slidably matched, and second axis of guide is pegged graft with guide hole and coordinated.
Further, above-mentioned thermal transfer printer also comprises the first driven unit that rotates for driving each conveying roller group.
Further, the first gear that above-mentioned the first driven unit comprises motor, the motor gear that arranges on the output shaft of motor, arrange at the axle head of the drive roll of the conveying roller group of the upstream side of backing plate, the second gear that arranges at the axle head of the drive roll of the conveying roller group in the downstream of backing plate, wherein, motor gear and the first gear be connected gear drive and be connected.
The thermal transfer printer that the utility model provides, along the printing paper throughput direction, upstream and downstream at the backing plate relative with thermal printer head arranges respectively the conveying roller group, when thermal printer head moves and prints on printing paper along the supporting surface of backing plate, be positioned at the conveying roller group clamping printing paper of backing plate both sides, make printing paper tighten and be close on the supporting surface of backing plate, avoid printing paper to shake in the thermal printer head motion process, thereby overcome because the printing paper shake causes the unsharp problem of print image, guaranteed print quality.
Except purpose described above, feature and advantage, other purpose, feature and the advantage that the utlity model has are described in further detail in connection with accompanying drawing.
Description of drawings
Consist of this specification a part, be used for further understanding accompanying drawing of the present utility model and show preferred embodiment of the present utility model, and be used for illustrating principle of the present utility model together with specification.In figure:
Fig. 1 is the structural representation of the thermal transfer printer of prior art;
Fig. 2 is the structural representation according to the thermal transfer printer of the utility model one embodiment;
Fig. 3 is the structure cutaway view according to the thermal transfer printer of the utility model one embodiment; And
Fig. 4 is the partial structurtes cutaway view according to the thermal transfer printer of the utility model one embodiment.
Description of reference numerals
1 print components 81 left plates
82 right plate 83 first axis of guides
84 second axis of guide 11 slides
12 thermal printer head 13 carbon ribbons are provided axle
14 carbon ribbons reclaim axle 15 backing plate assemblies
111 opening guide groove 112 guide holes
151 supporting seat 152 backing plates
152b the second end 21 first conveying roller groups
22 second conveying roller group 211 first drive rolls
212 first driven voller 221 second drive rolls
222 second driven voller 32 second driven units
33 first driven unit 331 motors
332 First Transition gear train 333 second transition gear groups
334 first gear 335 second gears
The 331a motor gear.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, 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 according to the thermal transfer printer of the utility model one embodiment, and Fig. 3 is the structure cutaway view according to the thermal transfer printer of the utility model one embodiment.As shown in Figure 2 and Figure 3, thermal transfer printer comprises frame, print components 1, conveying assembly and driven unit.
Frame comprises left plate 81, right plate 82 and guide, wherein left plate 81 and right plate 82 opposing parallel and interval preset distance, and distance between the two is more than or equal to the Breadth Maximum of printing paper; The length direction of guide extends along the width of printing paper, vertical support is between left plate 81 and right plate 82, in the present embodiment, guide comprises and being parallel to each other and first axis of guide 83 and second axis of guide 84 of interval preset distance, and both equal vertical supports are between left plate 81 and right plate 82.
For sake of convenience, below thermal printer head 12 is called Print direction by the first end 152a of the length direction of the supporting surface of backing plate 152 to the direction that the second end 152b of the length direction of the supporting surface of backing plate 152 moves, when the first end 152a of thermal printer head 12 and the supporting surface of backing plate 152 is relative, thermal printer head 12 is positioned at initial position, when relative, thermal printer head 12 is positioned at final position as the second end 152b of the supporting surface of thermal printer head 12 and backing plate 152.When thermal printer head 12 is moved to final position by initial position along Print direction, thermal printer head 12 prints on printing paper, generation comprises image or the word of setting, a print area with setting width and length, the width of this print area extends along the printing paper width, determined by thermal printer head displacement, the length of this print area is extended along the printing paper throughput direction, is determined by the length of the heater of thermal printer head.
For reducing the wearing and tearing of thermal printer head 12, further, print components 1 comprises that also printhead lifts the part (not shown), as eccentric parts such as cam etc., when thermal printer head 12 is moved to initial position by final position, printhead lifts part will drive gripper shoe 121 motions, drive thermal printer head 12 and separate with backing plate 152 to the direction motion away from backing plate 152.
Carbon ribbon provides axle 13 and carbon ribbon recovery axle 14 is arranged on slide 11, along Print direction, carbon ribbon is provided the upstream that axle 13 is positioned at thermal printer head 12, carbon ribbon reclaims the downstream that axle 14 is positioned at thermal printer head 12, and it is all parallel with the length direction of the heater of thermal printer head 12 that carbon ribbon is provided axis that axle 13 and carbon ribbon reclaim axle 14.Wherein, carbon ribbon is provided axle 13 and is used for supporting unworn carbon ribbon, and carbon ribbon reclaims axle 14 and is used for supporting and the used carbon ribbon of backrush.Untapped carbon ribbon is provided axle 13 by carbon ribbon and is drawn, and after warp between thermal printer head 12 and backing plate 152, is wrapped in carbon ribbon and reclaims on axle 14.When thermal printer head 12 was printed, carbon ribbon reclaimed axle 14 and rotates under the driving of driven unit, the used carbon ribbon of backrush.
Conveying assembly comprises at least two conveying roller groups, lays respectively at upstream side and the downstream of backing plate 152 along the printing paper throughput direction, is used for clamping and drives printing paper moving.In the present embodiment, conveying assembly comprises the first conveying roller group 21 and the second conveying roller group 22, and wherein, along the printing paper throughput direction, the first conveying roller group 21 is positioned at the upstream side of backing plate 152, and the second conveying roller group 22 is positioned at the downstream of backing plate 152.
The first conveying roller group 21 comprises the first drive roll 211 and first driven voller 212 of tangent setting, wherein, the first drive roll 211 and backing plate assembly 15 are positioned at the same side of printing paper, are in transmission connection with driven unit, under the driving of driven unit, the first drive roll 211 can rotate around self axis; The first driven voller 212 is positioned at the opposite side of printing paper, and the points of tangency of the first driven voller 212 and the first drive roll 211 is concordant with the supporting surface of backing plate 152 or be positioned at the side that deviates from thermal printer head of the supporting surface of backing plate 152 along the short transverse of backing plate 152.
In the present embodiment, the points of tangency of the first driven voller 212 and the first drive roll 211 is along the short transverse person of backing plate 152 a little less than the supporting surface of backing plate 152 and be positioned at the side that deviates from printhead of supporting surface, when printing paper passes between the first drive roll 211 and the first driven voller 212, driven unit drives the first drive roll 211 and rotates, can drive the printing paper that is positioned between the two moves, under the guiding of the chamfering of backing plate 152, printing paper can move to the top of backing plate 152.
The second conveying roller group 22 comprises the second drive roll 221 and second driven voller 222 of tangent setting, wherein, the second drive roll 221 and backing plate assembly 15 and the first drive roll 211 are positioned at the same side of printing paper, be in transmission connection with driven unit, under the driving of driven unit, the second drive roll 221 can rotate around self axis; The second driven voller 222 is positioned at the opposite side of printing paper, and the points of tangency of the second driven voller 222 and the second drive roll 221 is concordant with the supporting surface of backing plate 152 or be positioned at the side that deviates from thermal printer head of the supporting surface of backing plate 152 along the short transverse of backing plate 152.When printing paper passes the first drive roll 211 and the first driven voller 212, thermal printer head 12 and backing plate 152 successively, and second between drive roll 221 and the second driven voller 222 after, because the points of tangency between the points of tangency between the first action roller 211 and the first driven voller 212 and the second drive roll 221 and the second driven voller 222 is all concordant with the supporting surface of backing plate 152 or be positioned at the side that deviates from thermal printer head of the supporting surface of backing plate 152, therefore the first conveying roller group 21 and the second conveying roller group 22 are stretching and be close on the supporting surface of backing plate 152 with printing paper.
Preferably, along the printing paper throughput direction, the rotating speed of the drive roll 221 of the second conveying roller group 22 is more than or equal to the rotating speed of the drive roll 211 of the first conveying roller group 21, and can not break printing paper, so, can guarantee that printing paper tightens all the time and be close on the supporting surface of backing plate 152.
Driven unit comprises the first driven unit 33, the second driven unit 32 and the 3rd driven unit (not shown), wherein the first driven unit 33 is used for driving the rotation of conveying roller group, move along the printing paper throughput direction to drive printing paper, the second driven unit 32 is arranged on slide 11, reclaiming axle 14 with carbon ribbon is in transmission connection, be used for driving carbon ribbon and reclaim axle 14 rotations, the used carbon ribbon of backrush when thermal printer head 12 is printed; The 3rd driven unit is used for driving slide 11 and moves along the axis of guide, and thermal printer head 12 is moved along the supporting surface of backing plate 152.
the first driven unit 33 comprises motor 331, First Transition gear train 332, the second transition gear group 333, the first gear 334, and second gear 335, wherein, motor 331 is fixedly mounted on frame, be fixedly connected with motor gear 331a on the output shaft of motor 331, the first gear 334 is fixedly mounted on the axle head of the first drive roll 211, the second gear 335 is fixedly mounted on the axle head of the second drive roll 221, one end and the motor gear 331a of First Transition gear train 332 are connected with a joggle, the other end and the first gear 334 engagements, one end of the second transition gear group 333 and motor gear 331a engagement, the other end and the second gear 335 engagements, when motor 331 rotates, can drive the first drive roll 211 by First Transition gear train 332 and the first gear 334 rotates, can drive the second drive roll 221 by the second transition gear group 333 and the second gear 335 rotates.
The below introduces the course of work of the thermal transfer printer that the utility model provides.
During original state, thermal printer head 12 lifts at printhead under the driving of part, separates with the supporting surface of backing plate 152, and thermal printer head 12 is positioned at initial position.
after thermal transfer printer receives print command, at first, the motor 331 that the control device of thermal transfer printer is controlled the first driven unit 33 rotates along direction initialization, drive the first drive roll 211 and the second drive roll 221 rotations, the first drive roll 211 rotates, drive printing paper and enter that between the first drive roll 211 and the first driven voller 212, backward backing plate 152 moves, and enter between the second drive roll 221 and the second driven voller 222 through backing plate 152, when printing paper moves to the precalculated position, printhead lifts part releasing heat printhead 12 makes it contact with backing plate 152, the motor 331 of the first driven unit 33 stops operating, at this moment, the first conveying roller group 21 and the second conveying roller group 22 are tightened printing paper and be close on the supporting surfaces of backing plate 152.
Then, control device control the 3rd driven unit driving slide 11 moves along the length direction of guide, driving thermal printer head 12 moves along Print direction, thermal printer head 12 is simultaneously at the predetermined writings and image of printing paper printout surface, control device is controlled simultaneously the second driven unit 32 and is driven 14 rotations of carbon ribbon recovery axle, the used carbon ribbon of backrush, when thermal printer head 12 moved to final position, thermal printer head 12 was completed the printing of a print area.
then, printhead lifts part driving thermal printer head 12 to be separated with the supporting surface of pad 152, control device is controlled the 3rd driven unit driving slide 11 and is oppositely moved along guide, driving thermal printer head 12 is moved to initial position by final position, simultaneously, control device is controlled the electric machine rotation of the first driven unit 33, drive printing paper and move preset distance, after thermal printer head 12 is reset to initial position, printhead lifts part releasing heat printhead 12 contacts its supporting surface with backing plate 152, control device is controlled the 3rd driven unit driving slide 11 and is again moved along Print direction, drive thermal printer head 12 and carry out the printing of next print area.
The thermal transfer printer that the utility model provides, along the printing paper throughput direction, upstream and downstream at the backing plate relative with thermal printer head arranges respectively the conveying roller group, when thermal printer head moves and prints on printing paper along the supporting surface of backing plate, be positioned at the conveying roller group clamping printing paper of backing plate both sides, make printing paper tighten and be close on the supporting surface of backing plate, so in print procedure, printing paper can not move.Compared with prior art, the heat transfer printer that the utility model provides fixing position of printing paper when printing, thus overcome because the printing paper shake causes the unsharp problem of print image, guaranteed print quality.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. thermal transfer printer, the print components that comprises frame and arrange on described frame (1), wherein, described print components (1) comprise the backing plate (152) that extends along the width of printing paper with described backing plate (152) relative to and the thermal printer head (12) that can move along the length direction of described backing plate (152), it is characterized in that, be respectively equipped with clamping along the printing paper throughput direction in the upstream side of described backing plate (152) and downstream and carry described printing paper conveying roller group (21,22) so that described printing paper be close on described backing plate (152).
2. thermal transfer printer according to claim 1, it is characterized in that, along the short transverse of described backing plate (152), and the points of tangency of driven voller is concordant with the supporting surface of described backing plate (152) or the points of tangency of the drive roll of each described conveying roller group (21,22) and driven voller is positioned at a side of described thermal printer head of deviating from of described supporting surface (12) for the drive roll of each described conveying roller group (21,22).
3. thermal transfer printer according to claim 2, it is characterized in that, described print components (1) also comprises the supporting seat (151) that supports described backing plate (152), the supporting surface of described backing plate (152) protrudes from described supporting seat (151), and is respectively arranged with chamfering along the both sides of the supporting surface of the described backing plate of described printing paper throughput direction (152).
4. thermal transfer printer according to claim 1, it is characterized in that, be positioned at the rotating speed of drive roll (211) of described conveying roller group (21) of upstream side of described backing plate (152) more than or equal to the rotating speed of the drive roll (221) of the described conveying roller group (22) in the downstream that is positioned at described backing plate (152).
5. thermal transfer printer according to claim 1, it is characterized in that, described print components (1) also be included in arrange on described frame along the slide (11) of the width slip of described printing paper and provide axle (13) and carbon ribbon recovery axle (14) at the upper carbon ribbon that arranges of described slide (11), wherein, described thermal printer head (12) is arranged on described slide (11), is positioned at described carbon ribbon along the glide direction of described slide (11) and provides between axle (13) and carbon ribbon recovery axle (14).
6. thermal transfer printer according to claim 5, is characterized in that, also is provided with printhead on described slide (11) and lifts part.
7. thermal transfer printer according to claim 5, it is characterized in that, be arranged with first axis of guide (83) and second axis of guide (84) on described frame in parallel, described slide (11) has opening guide groove (111) and guide hole (112), described opening guide groove (111) is slidably matched with described first axis of guide (83), and described second axis of guide (84) is pegged graft with described guide hole (112) and coordinated.
8. thermal transfer printer according to claim 1, is characterized in that, also comprises the first driven unit (33) that rotates for driving each described conveying roller group (21,22).
9. thermal transfer printer according to claim 8, it is characterized in that, described the first driven unit (33) comprises motor (331), the motor gear that arranges on the output shaft of described motor (331) (331a), the first gear (334) that arranges at the axle head of the drive roll (211) of the described conveying roller group (21) of the upstream side of described backing plate (152), the second gear (335) that arranges at the axle head of the drive roll (221) of the described conveying roller group (22) in the downstream of described backing plate (152), wherein, described motor gear (331a) is in transmission connection with described the first gear (334) and the second gear (335).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013316 CN203004531U (en) | 2013-01-10 | 2013-01-10 | Thermal transfer printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013316 CN203004531U (en) | 2013-01-10 | 2013-01-10 | Thermal transfer printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203004531U true CN203004531U (en) | 2013-06-19 |
Family
ID=48596156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320013316 Expired - Fee Related CN203004531U (en) | 2013-01-10 | 2013-01-10 | Thermal transfer printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203004531U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103640340A (en) * | 2013-12-05 | 2014-03-19 | 北京鼎一伟信科技发展有限公司 | Thermal transfer printing printer |
| CN104325782A (en) * | 2014-09-03 | 2015-02-04 | 上海贝达包装材料有限公司 | Dry compound bag dedicated thermo-printing machine suitable for bag making machine |
| CN106476447A (en) * | 2016-11-25 | 2017-03-08 | 山东华菱电子股份有限公司 | There are the thermal printing apparatus of double thermal printing heads |
| CN110549745A (en) * | 2019-10-18 | 2019-12-10 | 周洋洋 | Thermal printer |
-
2013
- 2013-01-10 CN CN 201320013316 patent/CN203004531U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103640340A (en) * | 2013-12-05 | 2014-03-19 | 北京鼎一伟信科技发展有限公司 | Thermal transfer printing printer |
| CN104325782A (en) * | 2014-09-03 | 2015-02-04 | 上海贝达包装材料有限公司 | Dry compound bag dedicated thermo-printing machine suitable for bag making machine |
| CN106476447A (en) * | 2016-11-25 | 2017-03-08 | 山东华菱电子股份有限公司 | There are the thermal printing apparatus of double thermal printing heads |
| CN106476447B (en) * | 2016-11-25 | 2018-03-27 | 山东华菱电子股份有限公司 | Thermal printing apparatus with double thermal printing heads |
| CN110549745A (en) * | 2019-10-18 | 2019-12-10 | 周洋洋 | Thermal printer |
| CN110549745B (en) * | 2019-10-18 | 2020-12-04 | 宿州青果知识产权服务有限公司 | Thermal printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20210110 |