CN2832529Y - Drift self-adaptive mechanism for hot transfer printing head - Google Patents
Drift self-adaptive mechanism for hot transfer printing head Download PDFInfo
- Publication number
- CN2832529Y CN2832529Y CN 200520122034 CN200520122034U CN2832529Y CN 2832529 Y CN2832529 Y CN 2832529Y CN 200520122034 CN200520122034 CN 200520122034 CN 200520122034 U CN200520122034 U CN 200520122034U CN 2832529 Y CN2832529 Y CN 2832529Y
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- cam
- left cam
- holder
- printhead
- cam shaft
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- Expired - Lifetime
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Abstract
The utility model discloses a drift self-adaptive mechanism for hot transfer printing heads, which is composed of a rubber roller mechanism, a printing head installation board mechanism, a drift supporting mechanism and a cam mechanism, wherein the drift supporting mechanism is composed of a fixed base, a torsion spring, a rotary sleeve and a rotary shaft and is installed on a printer body by the fixed base. A cam shaft mechanism is composed of a left cam shaft mechanism and a right cam shaft mechanism, and is used for pressing and raising the printing head. The left cam shaft mechanism is composed of a left cam shaft, a left cam upper cover, a left cam body, a left cam bush, a left cam spring, a left cam adjusting pad and a left cam adjusting bolt. The structure of the right cam shaft mechanism is completely the same as that of the left cam shaft mechanism. The utility model has simple structure and a few parts of which the number is only half of the number of the parts of the traditional printing head. The utility model has low requirement for the processing precision of the parts, and thus has low production cost. The utility model having stable and reliable performance is convenient to assemble and can be accurately positioned without any adjustment.
Description
Technical field
The utility model relates to printer technology, particularly relates to the unsteady adaptive mechanism of a kind of heat-transferring head.
Background technology
The unsteady adaptive mechanism of heat-transferring head is the core of thermal transfer printer.Existing print module mainly is made up of left and right sides gripper shoe, left and right sides shop bolt, extension spring, rubber roll, printhead, printhead installing plate, left and right sides position locking mechanism, eccentric adjusting mechanism, lever regulated mechanism, front and back position locking mechanism etc.When hot transfer printing module is worked the relative rubber roll relative position of printhead is had following requirement: the printhead hot spot must be in the point of contact of rubber roll external diameter all the time; Whole heater wire must overlap with the rubber roll side bus; Each hot spot is except that must be all the time also keeping suitable constant pressure with rubber roll closely connected; For must taking up flexibly, puts down replacing paper carbon ribbon printhead; Entire mechanism must possess the constant pressure that enough rigidity support that this is suitable; The strain that this pressure causes is to each hot spot and rubber roll is closely connected impacts.
Left and right sides gripper shoe is the upper support element of whole module, lifts printhead when extension spring is used to change consumptive material.Guarantee the uniformity of gripper shoe position, the left and right sides during use by left and right sides shop bolt.At first to use special tooling to utilize the reference column calibration to guarantee that printhead is parallel with the rubber roll center during assembling, then printhead is fixed on the printhead installing plate.Second step will guarantee that printhead working portion and rubber roll were closely connected by adjusting eccentric adjusting mechanism.The 3rd step will lock by the adjustment result of position, left and right sides retaining mechanism to second step.The 4th step will be printed the relative position of seeking printhead hot spot and rubber roll center by reality, made it to overlap by regulating lever regulated mechanism.The 5th step will lock by the adjustment result of front and back position retaining mechanism to the 4th step.
There is following shortcoming in this hot transfer printing module
1) for guaranteeing that the printhead hot spot is in the point of contact of rubber roll external diameter all the time, production can only be adjusted by actual printing range estimation;
2), must use special tooling to guarantee accurately location of dress during assembling for guaranteeing that whole heater wire must overlap with the rubber roll side bus;
3) except that should guarantee each hot spot must be all the time with rubber roll closely connected, also to keep suitable constant pressure, to being assembled with high requirement;
4) put down paper for the carbon ribbon printhead can be taken up flexibly, require to want dozens of part mutual alignment accurate;
5) for making strain that pressure causes not to each hot spot with rubber roll is closely connected impacts, very high to the module rigidity requirement;
6) complex structure, adjusting in the use needs higher skill, can only be undertaken by the professional.
Summary of the invention
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of new heat-transferring head self-reacting device that floats is provided, and this apparatus parts is few, and is low to requirement on machining accuracy, simple and convenient assembly, reliability height.
Therefore the utility model has proposed the unsteady adaptive mechanism of a kind of heat-transferring head.This mechanism is made up of rubber roll mechanism, printhead installing plate mechanism, unsteady supporting mechanism and cam mechanism.The supporting mechanism that wherein floats is made of holder, torsion spring, rotary sleeve, rotating shaft, holder is installed on the printer body, torsion spring set is on holder, rotary sleeve left end guide shaft inserts in the holder, can in holder, freely rotate, rotary sleeve right-hand member pilot hole and rotating shaft movingly, rotating shaft can freely rotate in pilot hole and float vertically; Camshaft mechanism is made of left and right cam and camshaft.Left side cam is formed by being placed in the left cam body in the left cam sleeve, left cam spring, left cam adjusting pad, left cam loam cake and left cam adjustment screw successively.Right cam structure and left cam are identical, and left and right cam links to each other by the camshaft that crosses wherein.Camshaft mechanism is used to depress, lift printhead, and the rotating cam axis mechanism can be controlled lifting and depressing of head mechanism.
The utlity model has following advantage:
The utility model constitutional detail reduces, and only is traditional printhead part several 50%; Requirement on machining accuracy to part is not high, thereby production cost is low; Simple and convenient assembly does not need any adjustment accurately to locate; Stable and reliable for performance.
Fig. 1 is the utility model vertical view
Fig. 2 is the utility model right view
Fig. 3 the utility model front view
The specific embodiment
The utility model is made up of rubber roll mechanism 1, printhead installing plate mechanism 2, unsteady supporting mechanism 3 and cam mechanism 4.
Rubber roll mechanism 1 is made of left sliding bearing 112, right sliding bearing 111 and the rubber roll 12 that is installed on the bearing that horizontally slips.
Printhead installing plate mechanism 2 is made of printhead, printhead left alignment pin 222, printhead right alignment pin 221, printhead hold-down screw 23, printhead installing plate hold-down nut 363, printhead installing plate 24.Printhead accurately is tightened to one with printhead hold-down screw 23, (referring to Fig. 1) in the back, location by the printhead left alignment pin 222 on the printhead installing plate, printhead right alignment pin 221.Two location prongs have been designed at printhead installing plate 24 two ends, the location benchmark that front and back position is provided for printhead installing plate 24 movingly by prong and left sliding bearing 112, right sliding bearing 111 external diameters, guaranteed that printhead heater wire 211 overlaps (referring to Fig. 2) with the rubber roller center.
The supporting mechanism 3 that floats is made up of holder 37, holder mounting screw 32, torsion spring 35, rotary sleeve 36, rotating shaft 361, back-up ring 362 etc.Holder 37 is installed on the printer body 5 by holder dog screw 32; Torsion spring 35 is enclosed within on the holder 37, and the support arm of its left end inserts in the locating hole of holder 37; Rotary sleeve 36 left end guide shafts insert in the holder 37, and the locating hole on it is enclosed within on the support arm of torsion spring 35 right-hand members; Rotary sleeve 36 can freely rotate in holder; Designed locating slot one on the rotary sleeve 36 left end guide shafts, by the axial location of holder dog screw 31 restriction rotary sleeves 36; Rotating shaft 361 goes back except that can freely rotating in holder 37 and holder 37, torsion mechanism of torsion spring 35 compositions are used to lift printhead installing plate 24.Rotary sleeve 36 right-hand member pilot holes and rotating shaft 361 are movingly; Rotating shaft 361 can freely rotate in pilot hole and float vertically, and the shaft shoulder of rotating shaft 361 provides the axial location of front end, and the back-up ring 362 that circlip groove snaps on the rotating shaft provides the axial location of rear end.The guiding length of rotary sleeve 36, rotating shaft 361 lengthenings has been eliminated the oscillating quantity between the part, for location before and after connecting the printhead installing plate on it provides good condition.The printhead installing plate is fastened on the rotating shaft 361 by printhead installing plate hold-down nut 363;
Camshaft mechanism 4 is made up of left and right cam and camshaft 47.Left and right cam structure is identical.Left side camshaft mechanism is made of left cam loam cake 412, left cam adjustment screw 422, left cam adjusting pad 432, left cam body 452, left cam sleeve 462, left cam spring 442.Right cam is made of right cam loam cake, right cam adjustment screw, right cam adjusting pad, right cam body, right cam sleeve, right cam spring.During assembling, with left cam body 452, left cam spring 442, left cam adjusting pad 432, left cam loam cake 412, put into left cam sleeve 462 successively, penetrate camshaft 47 again, screw in left cam then and adjust screw 422.Right cam assembling is with left cam.Cam mechanism is used to depress, lift printhead.Rotating cam mechanism can control lifting and depressing of head mechanism.Adjust screw 422 by adjusting cam, can accurately adjust cam the printhead applied pressure.
Rotating cam axle 47 is depressed the printhead installing plate 24 that relocation mechanism supports by cam mechanism, and the cam balanced application of force in the left and right sides is depressed into rubber roll with printhead, makes whole printhead working portion and rubber roll closely connected.Adjust screw 422 by accurate adjustment cam and guarantee that the operating pressure of printhead and rubber roll remains rated value.(referring to Fig. 3).
Claims (2)
1, the unsteady adaptive mechanism of a kind of heat-transferring head, comprise rubber roll mechanism, printhead installing plate mechanism, it is characterized in that: it also comprises a unsteady supporting mechanism and a cam mechanism, described unsteady supporting mechanism is made of holder, torsion spring, rotary sleeve, rotating shaft, holder is installed on the printer body, torsion spring set is on holder, rotary sleeve left end guide shaft inserts in the holder, can in holder, freely rotate, rotary sleeve right-hand member pilot hole and rotating shaft movingly, rotating shaft can freely rotate in pilot hole and float vertically; Described camshaft mechanism is made of left and right cam and camshaft, left side cam is formed by being placed in the left cam body in the left cam sleeve, left cam spring, left cam adjusting pad, left cam loam cake and left cam adjustment screw successively, right camshaft mechanism structure and left cam mechanism are identical, and left and right cam links to each other by the camshaft that crosses wherein.
2, adaptive mechanism according to claim 1 is characterized in that: described rotating shaft and holder, torsion spring are formed a torsion mechanism, are used to lift the printhead installing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122034 CN2832529Y (en) | 2005-09-23 | 2005-09-23 | Drift self-adaptive mechanism for hot transfer printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122034 CN2832529Y (en) | 2005-09-23 | 2005-09-23 | Drift self-adaptive mechanism for hot transfer printing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2832529Y true CN2832529Y (en) | 2006-11-01 |
Family
ID=37196845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520122034 Expired - Lifetime CN2832529Y (en) | 2005-09-23 | 2005-09-23 | Drift self-adaptive mechanism for hot transfer printing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2832529Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264082A (en) * | 2017-07-27 | 2017-10-20 | 厦门汉印电子技术有限公司 | Printhead self-adapting adjusting apparatus and its printer |
-
2005
- 2005-09-23 CN CN 200520122034 patent/CN2832529Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264082A (en) * | 2017-07-27 | 2017-10-20 | 厦门汉印电子技术有限公司 | Printhead self-adapting adjusting apparatus and its printer |
| CN107264082B (en) * | 2017-07-27 | 2023-01-10 | 厦门汉印电子技术有限公司 | Printing head self-adaptive adjusting device and printer thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061101 |
|
| EXPY | Termination of patent right or utility model |