CN203543373U - Printing mechanism - Google Patents
Printing mechanism Download PDFInfo
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- CN203543373U CN203543373U CN201320608059.XU CN201320608059U CN203543373U CN 203543373 U CN203543373 U CN 203543373U CN 201320608059 U CN201320608059 U CN 201320608059U CN 203543373 U CN203543373 U CN 203543373U
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- rubber roll
- printing
- print carriage
- printhead
- gear
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Abstract
The utility model discloses a printing mechanism including a paper-pressing rubber roll (1), a printing head sheet (2), a printing support (3), a helical spring (4), a printing head spring seat (5), a printer seat (6) and a universal mechanism (10). The paper-pressing rubber roll (1) is fixed to a paper cavity cover, the printing head sheet (2) is fixed to the printing support (3) through screws, the helical spring (4) is locked between the printing head spring seat (5) and the printing support (3) under precompression produced by the helical spring (4), the universal mechanism (10) is composed of a multi-shaft universal mechanism and connected to the printer seat (6) through a shaft. By adopting the above scheme, the printing head sheet can be ensured to move back and forth and rotate along three reference axes of three-dimensional space though the multi-shaft universal mechanism, and the paper-pressing rubber roll can be ensured to be parallel with a temperature-sensitive print head sheet.
Description
Technical field
The utility model relates to a kind of printing mechanism, relates in particular to a kind of thermal printing mechanism.
Background technology
At present, emphasis, the difficult point of thermal printing mechanism Shi12 road electrocardiograph design always, existing printing mechanism exists: print the defects such as unintelligible, printed waveform is inhomogeneous, printing paper wanders off, printing mechanism unstable (bad during effect fashion), volume production difficulty (every all needs debugging), the present invention has well solved the deficiency of above-mentioned technology.
Existing printing mechanism generally by: several parts such as platen rubber roll, print carriage, torsion spring, travelling gear, printhead sheet form.Printhead sheet is arranged on print carriage, and print carriage is arranged on to be printed on base, is arranged on the print carriage of printing on base and is exerted pressure by torsion spring spring, and printhead sheet and platen rubber roll are compressed.Thermal printing paper is installed between printhead sheet and platen rubber roll.Printhead sheet is realized pinpoint heating under programme-control, the thermal printing paper blackening of being heated, and stepper motor drives platen rubber roll to rotate by reducing gear, and rubber roll drives heat-sensitive paper to walk about, and has just formed waveform on paper.
The technical characterstic of thermal printing is: thermal printing head sheet by heating to thermal printing paper heating, the thermal printing paper blackening of being heated, in the heat-sensitive paper surface unit time, heating temperature is higher, blackout degree is darker.Therefore, the hot line (heater element) on thermal printing head sheet is tighter with contacting of heat-sensitive paper, and under identical heating condition (heating current is identical), the waveform on heat-sensitive paper is just more black.
Existing printing mechanism, print carriage with print base by an axle, be connected, torque spring is arranged on axle print carriage is exerted pressure, axle and printing base for to be firmly connected.Like this, printhead sheet can only sway.During actual production, due to not existence of eliminable error such as processing, assemblings, can produce three problems: (1) platen rubber roll axis and thermal printing head sheet hot line are not parallel; (2) rubber roll and thermal printing head sheet contact site pressure at two ends are inconsistent; (3) rubber roll and thermal printing head sheet contact site are not just to hot line.If platen rubber roll axis and thermal printing head sheet hot line are not parallel, the waveform printing is inhomogeneous, and some region is darker, and some region is partially light; If rubber roll and thermal printing head sheet contact site pressure at two ends are inconsistent, the waveform one end of printing is clear, and the other end is unintelligible or there is no waveform at all, and printing paper also can wander off simultaneously; If rubber roll and thermal printing head sheet contact site are not just to hot line, the waveform entirety printing is partially light, and it is clear to be difficult to regulate.This invention has well solved above problem.
Utility model content
The utility model, in order to solve the problems of the technologies described above, provides a kind of printing mechanism of new structure.
It is as follows that the utility model solves the problems of the technologies described above taked technical scheme:
A kind of printing mechanism, comprise: platen rubber roll (1), printhead sheet (2), print carriage (3), helical spring (4), printhead spring base (5), printer block (6), omnidirectional mechanism (10), described platen rubber roll (1) is fixed on paper storehouse and covers, described printhead sheet (2) is screwed on print carriage (3), described helical spring (4) is stuck between printhead spring base (5) and print carriage (3) by self precompression, described omnidirectional mechanism (10) is multiaxis omnidirectional mechanism composition, and be connected on described printer block (6) by an axle.
Further, preferred structure is, be provided with reducing gear (7), stepper motor (8), gear-box (9) and omnidirectional mechanism (10), described omnidirectional mechanism (10) is multiaxis omnidirectional mechanism composition, and be connected on printer block (6) by an axle, described reducing gear (7) and stepper motor (8) utilize screw and snap ring to be connected on gear-box (9), described gear-box (9) is connected on printer block (6) by screw, described stepper motor (8) drives platen rubber roll (1) by reducing gear (7).
Further, preferred structure is that described omnidirectional mechanism (10) is cross type twin shaft or bulb-shaped omnidirectional mechanism.
Further, preferred structure is that described print carriage (3) is arranged on pedestal by described omnidirectional mechanism (10).
Further, preferred structure is that described print carriage (3) is provided with locates with U-shaped draw-in groove and racetrack hole.
After the utility model has been taked such scheme, by means of multiaxis omnidirectional mechanism, thereby when guaranteeing that printhead sheet can seesaw, along three reference axis in three dimensions, rotate, thereby guaranteed that platen rubber roll is parallel with thermal printing head sheet.
Other features and advantages of the utility model will be set forth in the following description, and, partly from description, become apparent, or understand by implementing the utility model.The purpose of this utility model and other advantages can be realized and be obtained by specifically noted structure in write description, claims and accompanying drawing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in detail, to make above-mentioned advantage of the present utility model clearer and more definite.
Fig. 1 is the structural representation of the utility model printing mechanism;
Fig. 2 is the A-A generalized section of the utility model printing mechanism.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in detail.
As depicted in figs. 1 and 2, main inventive point of the present utility model is to overcome:
(1) platen rubber roll axis and thermal printing head sheet hot line are not parallel; (2) rubber roll and thermal printing head sheet contact site pressure at two ends are inconsistent; (3) rubber roll and thermal printing head sheet contact site are not just to this three large technical barrier of hot line.
For this reason, at the printing mechanism of an embodiment, comprise: platen rubber roll 1, printhead sheet 2, print carriage 3, helical spring 4, printhead spring base 5, printer block 6, omnidirectional mechanism 10, described platen rubber roll 1 is fixed on paper storehouse and covers, described printhead sheet 2 is screwed on print carriage 3, described helical spring 4 is stuck between printhead spring base 5 and print carriage 3 by self precompression, described omnidirectional mechanism 10 is multiaxis omnidirectional mechanism composition, and is connected on described printer block 6 by an axle.
Specifically, described omnidirectional mechanism 10 is cross type twin shaft omnidirectional mechanism.
In addition, also be provided with reducing gear 7, stepper motor 8, gear-box 9 and omnidirectional mechanism 10, described omnidirectional mechanism 10 is multiaxis omnidirectional mechanism composition, and be connected on printer block 6 by an axle, described reducing gear 7 and stepper motor 8 utilize screw and snap ring to be connected on gear-box 9, and described gear-box 9 is connected on printer block 6 by screw, and described stepper motor 8 drives platen rubber roll 1 by reducing gear 7.
Wherein, described print carriage 3 is arranged on pedestal by described omnidirectional mechanism 10.And described print carriage 3 is provided with locates with U-shaped draw-in groove and racetrack hole.
Wherein, compared with prior art, the present invention has abandoned hard connecting axle, and with crossed universal shaft replacement, replaces torsion spring with helical spring simultaneously, coordinates racetrack locating hole and U-shaped locating groove.
Wherein, when crossed universal shaft coordinates racetrack hole can guarantee that printhead sheet can seesaw, along three reference axis in three dimensions, rotate.Along the rotation of Y-axis, coordinate U-shaped locating groove, guarantee that platen rubber roll is parallel with thermal printing head sheet, guarantee the compensation to the processing in all directions, rigging error.
In addition, along the rotation of Z axis, utilize lever principle, pressure that can balance printhead sheet two ends; And U-shaped locating groove can accurately be located platen rubber roll, guarantee that platen rubber roll malleation is on the hot line of thermal printing head sheet.
Compared with the existing technology; technique effect of the present utility model is: by introducing omnidirectional mechanism, U-shaped draw-in groove, racetrack hole; printing mechanism is dropped to minimum to the requirement of machining, assembling, the problems such as stability that while well having solved batch production, the inconsistency of printing mechanism causes, reliability;
In addition, in an embodiment, described cross type twin shaft omnidirectional mechanism is not limited to cross type twin shaft.Also can be bulb-shaped omnidirectional mechanism.
Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.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 (5)
1. a printing mechanism, it is characterized in that, comprise: platen rubber roll (1), printhead sheet (2), print carriage (3), helical spring (4), printhead spring base (5), printer block (6), omnidirectional mechanism (10), described platen rubber roll (1) is fixed on paper storehouse and covers, described printhead sheet (2) is screwed on print carriage (3), described helical spring (4) is stuck between printhead spring base (5) and print carriage (3) by self precompression, described omnidirectional mechanism (10) is multiaxis omnidirectional mechanism composition, and be connected on described printer block (6) by an axle.
2. printing mechanism according to claim 1, it is characterized in that, also be provided with reducing gear (7), stepper motor (8), gear-box (9), described reducing gear (7) and stepper motor (8) utilize screw and snap ring to be connected on gear-box (9), it is upper that described gear-box (9) is connected to printer block (6) by screw, and described stepper motor (8) drives platen rubber roll (1) by reducing gear (7).
3. printing mechanism according to claim 2, is characterized in that, described omnidirectional mechanism (10) is cross type twin shaft or bulb-shaped omnidirectional mechanism.
4. printing mechanism according to claim 1 and 2, is characterized in that, described print carriage (3) is arranged on pedestal by described omnidirectional mechanism (10).
5. printing mechanism according to claim 1 and 2, is characterized in that, described print carriage (3) is provided with locates with U-shaped draw-in groove and racetrack hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320608059.XU CN203543373U (en) | 2013-09-29 | 2013-09-29 | Printing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320608059.XU CN203543373U (en) | 2013-09-29 | 2013-09-29 | Printing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203543373U true CN203543373U (en) | 2014-04-16 |
Family
ID=50461537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320608059.XU Expired - Lifetime CN203543373U (en) | 2013-09-29 | 2013-09-29 | Printing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203543373U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711273A (en) * | 2016-03-11 | 2016-06-29 | 武汉中旗生物医疗电子有限公司 | Segmented leaf spring type self-adjustment printing structure |
| CN106457844A (en) * | 2014-05-30 | 2017-02-22 | 富士通电子零件有限公司 | Printer |
| CN109130527A (en) * | 2018-08-23 | 2019-01-04 | 武汉吉星医疗科技有限公司 | Thermal printing component and electrocardiograph |
| CN110920269A (en) * | 2019-12-30 | 2020-03-27 | 珠海智汇网络设备有限公司 | Portable label printer |
| CN112092509A (en) * | 2020-10-15 | 2020-12-18 | 珠海泽冠科技有限公司 | Pressing structure of thermal printer and using method thereof |
-
2013
- 2013-09-29 CN CN201320608059.XU patent/CN203543373U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106457844A (en) * | 2014-05-30 | 2017-02-22 | 富士通电子零件有限公司 | Printer |
| CN106457844B (en) * | 2014-05-30 | 2018-09-04 | 富士通电子零件有限公司 | Print apparatus |
| CN105711273A (en) * | 2016-03-11 | 2016-06-29 | 武汉中旗生物医疗电子有限公司 | Segmented leaf spring type self-adjustment printing structure |
| CN109130527A (en) * | 2018-08-23 | 2019-01-04 | 武汉吉星医疗科技有限公司 | Thermal printing component and electrocardiograph |
| CN110920269A (en) * | 2019-12-30 | 2020-03-27 | 珠海智汇网络设备有限公司 | Portable label printer |
| CN112092509A (en) * | 2020-10-15 | 2020-12-18 | 珠海泽冠科技有限公司 | Pressing structure of thermal printer and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WUHAN ZHONGQI BIOMEDICAL ELECTRON CO., LTD. Free format text: FORMER NAME: WUHAN ZHONGQI ELECTRON CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 430000 No. two, No. 380, hi tech Development Zone, East Lake New Technology Development Zone, Hubei, Wuhan Patentee after: WUHAN ZONCARE BIO-MEDICAL ELECTRONICS Co.,Ltd. Address before: 430000 No. two, No. 380, hi tech Development Zone, East Lake hi tech Development Zone, Hubei, Wuhan Patentee before: WUHAN ZONCARE ELECTRONICS Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |