CN110421983B - Thermal printer - Google Patents
Thermal printer Download PDFInfo
- Publication number
- CN110421983B CN110421983B CN201910758067.4A CN201910758067A CN110421983B CN 110421983 B CN110421983 B CN 110421983B CN 201910758067 A CN201910758067 A CN 201910758067A CN 110421983 B CN110421983 B CN 110421983B
- Authority
- CN
- China
- Prior art keywords
- positioning
- locking
- rod
- base
- positioning rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000007639 printing Methods 0.000 claims abstract description 12
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/12—Guards, shields or dust excluders
- B41J29/13—Cases or covers
Landscapes
- Electronic Switches (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
The thermal printer comprises a machine base, a motor, a transmission gear set, a printing head assembly, a machine frame and a rubber roller, and is characterized in that a first positioning rod and a second positioning rod are arranged on the machine frame in parallel with the length direction of the printing head assembly at intervals, and a first positioning groove and a second positioning groove for the first positioning rod and the second positioning rod to be arranged are respectively formed in the front end face of the machine base; the disengaging mechanism comprises a locking plate, a transmission block and a deflector rod, wherein the locking plate is provided with a first locking tongue part capable of locking the first positioning rod in the first positioning groove and a second locking tongue part capable of locking the second positioning rod in the second positioning groove. The locking plate is driven to rotate by the driving rod matched with the transmission block, so that unlocking of the first positioning groove and the second positioning groove is achieved, disengagement of the frame and the base is achieved, operation is convenient and fast, and the locking device is simple and practical in structure.
Description
Technical Field
The invention relates to a thermal printer which is applied to bill printing of a cash dispenser and a supermarket cash register.
Background
Most automatic teller machines of banks and cash registers of supermarkets are provided with thermal printers for printing transaction vouchers or tickets. Thermal printers typically have a housing in which is mounted a cartridge consisting of a printhead assembly mounted above the housing, a housing, and a paper cutting blade mounted to one side of the housing and the printhead assembly. A paper feed passage is formed between the printhead assembly and the housing, through which thermal printing paper passes.
The upper end of the machine seat of the thermal printer core is provided with a rubber roller, and a motor is arranged in the machine seat and drives the rubber roller to rotate through a transmission mechanism such as a gear and the like. The printing head assembly comprises a printing head and a thermal sensitive sheet, wherein the thermal sensitive sheet is arranged opposite to the rubber roller, and the thermal sensitive sheet heats the thermal sensitive printing paper to form characters and patterns.
Since thermal printers require frequent replacement of the printing paper during operation, the printheads are often required to be separated from the chassis, i.e., the uncapping operation; another type of jam is encountered where a door opening operation is required. Therefore, the existing printhead assembly and the base are provided with a cover opening mechanism for opening the cover, and related documents can refer to patent documents before the applicant, such as Chinese patent application publication No. ZL201410604555.7 (patent publication No. CN 104309311B); reference may also be made to the chinese patent of invention "thermal printer" having the patent number ZL201710535432.6 (issued to CN 107310276B).
Disclosure of Invention
The invention aims to solve the technical problem of providing a thermal printer with convenient cover opening operation aiming at the prior art.
The technical scheme adopted for solving the technical problems is as follows: a thermal printer includes
A base;
the motor is arranged on the base;
the transmission gear set is arranged on the base and is connected with the power output end of the motor;
the rubber roller is rotatably arranged on the machine seat and is provided with a driving gear meshed with the transmission gear set;
the frame is detachably arranged on the machine base through a disengaging mechanism;
a printhead assembly disposed on the frame and adjacent to the printhead assembly;
the printing head is characterized in that a first positioning rod and a second positioning rod are arranged on the frame in parallel with the length direction of the printing head assembly at intervals, and a first positioning groove and a second positioning groove for the first positioning rod and the second positioning rod to be arranged are respectively formed in the front end face of the frame;
the disengagement mechanism comprises
The locking plate can be rotatably arranged on the machine base and is provided with a first locking tongue part capable of locking the first positioning rod in the first positioning groove and a second locking tongue part capable of locking the second positioning rod in the second positioning groove;
the transmission block is coaxially connected with the locking plate on the machine base and can synchronously drive the locking plate to rotate; and
the middle part of the deflector rod can be rotatably arranged on the machine base, one end of the deflector rod is exposed to form a deflector part, and the other end of the deflector rod can drive the transmission block to rotate.
Furthermore, the two sides of the front end of the stand are respectively extended forwards to form a connecting part, and the first positioning groove and the second positioning groove are arranged on the connecting parts; the disengaging mechanism also comprises a rotating shaft arranged on the machine base, the rotating shaft is parallel to the length direction of the rubber roller, and the locking plates are two pieces which are respectively positioned at two ends of the rotating shaft and are close to the respective connecting parts.
Further, the locking plate is located inside the connecting portion, the transmission block is located outside the connecting portion, and the transmission block is connected with one of the locking plates through a connecting pin penetrating through the connecting portion.
Further, the locking plates are connected into a whole through a connecting bridge, and a reset spring is arranged on the connecting bridge, so that the locking plates always keep the first positioning rod and the second positioning rod in the state.
In consideration of the operation handfeel and stability of the deflector rod, the base is laterally and outwards extended with a baffle wall, one side of the deflector rod is formed with an elastic curved strip part, and the curved strip part can resist the deflector rod by abutting against the baffle wall.
Further, a force receiving portion is provided at one end of the transmission block, correspondingly, an extrusion portion is provided at one end of the shift lever and abuts against the force receiving portion, the extrusion portion is pressed down to enable the transmission block to rotate, and further enable the locking plate to rotate, and the first locking tongue portion and the second locking tongue portion simultaneously unlock the first positioning lever and the second positioning lever.
Compared with the prior art, the invention has the advantages that: the locking plate is driven to rotate by the driving rod matched with the transmission block, so that unlocking of the first positioning groove and the second positioning groove is achieved, disengagement of the frame and the base is achieved, operation is convenient and fast, and the locking device is simple and practical in structure.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a schematic view of another view of the base portion of fig. 2.
Fig. 4 is a schematic view of a portion of the frame of fig. 2 from another perspective.
Fig. 5 is a reduced exploded view of fig. 3.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1, 2 and 3, the thermal printer in this embodiment includes a base 1, a motor 16, a driving gear set 14, a rubber roller 13, a frame 4, a print head assembly 43 and a release mechanism 2.
The front end face of the machine base 1 is respectively provided with a first positioning groove 11 and a second positioning groove 12; specifically, the two sides of the front end of the stand 1 are respectively extended forward to form a connecting part 1a, and a first positioning groove 11 and a second positioning groove 12 are formed on the connecting part 1 a; the housing 1 extends laterally outwardly with a retaining wall 1b. The motor 16 is provided on the housing 1.
The transmission gear set 14 is arranged on the machine base 1 and is connected with the power output end of the motor 16, and the gear cover 1c is arranged on the machine base 1 and covers the transmission gear set 14.
The rubber roller 13 is rotatably arranged on the machine base 1 through a rubber roller shaft and is provided with a driving gear 131 meshed with the transmission gear set 14.
The frame 4 is detachably arranged on the machine base 1 through the disengaging mechanism 2; the frame 4 is provided with a first positioning lever 41 and a second positioning lever 42 at intervals in the longitudinal direction of the print head assembly 43, and the print head assembly 43 is provided on the frame 4 and in the vicinity of the print head assembly 43 as shown in fig. 4.
As shown in fig. 5, the release mechanism 2 in this embodiment includes a lock piece 23, a transmission block 22, a lever 21, and a rotation shaft 25. The locking plate 23 is rotatably arranged on the stand 1 and positioned at the inner side of the connecting part 1a, and the locking plate 23 is provided with a first locking tongue 231 capable of locking the first positioning rod 41 in the first positioning groove 11 and a second locking tongue 232 capable of locking the second positioning rod 42 in the second positioning groove 12; the locking plates 23 are connected into a whole through a connecting bridge 24, a return spring 26 is arranged on the connecting bridge 24, and the other end of the return spring 26 is propped against the inner wall of the cover plate 15 on the machine base 1. The return spring 26 can keep the lock piece 23 in the state of the first positioning lever 41 and the second positioning lever 42 that are long all the time.
The transmission block 22 is located outside the connecting portion 1a and has a force receiving portion 221 at one end, the transmission block 22 and the locking plate 23 are coaxially connected to the machine base 1 and can synchronously drive the locking plate 23 to rotate, and the transmission block 22 is further connected with one of the locking plates 23 through a connecting pin 27 penetrating through the connecting portion 1a.
The middle part of the deflector rod 21 can be rotatably arranged on the machine base 1, one end of the deflector rod is exposed to form a deflector part 213, and the other end of the deflector rod can drive the transmission block 22 to rotate. One side of the lever 21 is formed with a curved strip portion 212 having elasticity, and the curved strip portion 212 can be reacted against the blocking wall 1b on the lever 21. One end of the shift lever 21 has a pressing portion 211 that abuts against the force receiving portion 221, and the pressing portion 211 is pressed to rotate the transmission block 22 and thus the lock piece 23, so that the first lock tab 231 and the second lock tab 232 simultaneously unlock the first positioning lever 41 and the second positioning lever 42.
The rotating shaft 25 is arranged on the machine base 1 and is parallel to the length direction of the rubber roller 13, and the locking plates 23 are two pieces which are respectively positioned at two ends of the rotating shaft 25 and are close to the respective connecting parts 1a.
In the initial state, the frame is connected with the machine base, the stirring part of the stirring rod is pulled, the extrusion part acts on the stress part of the transmission block, the transmission block rotates and drives the two locking plates and the rotating shaft to rotate, the first locking tongue part and the second locking tongue part on the locking plates are contacted with the locking of the first positioning groove and the second positioning groove, and the first positioning rod and the second positioning rod are separated from the first positioning groove and the second positioning groove at the same time, so that the frame is separated from the machine base.
When the connecting assembly is carried out, the first positioning rod is aligned with the first positioning groove, the second positioning rod is aligned with the second positioning groove, the first positioning rod and the second positioning rod are pressed into the respective positioning grooves against the acting force of the return spring, the connecting assembly is assembled in place, and the first locking tongue part and the second locking tongue part lock the first positioning rod and the second positioning rod respectively at the same time, so that the connecting assembly is limited to be separated from the base.
Referring to fig. 5, a transverse sliding hole 17 is formed in the front end surface of the base 1 in this embodiment, two adjusting blocks 3 are disposed on the sliding hole 17 and can be relatively far from and close to each other, specifically, racks are formed on the adjusting blocks 3, the racks are engaged with and driven by an intermediate gear 3b, the intermediate gear 3b can be rotatably disposed on the base 1, so that one of the adjusting blocks 3 is driven, and the other adjusting block 3 can be moved simultaneously. The distance between the adjustment blocks 3 can be used to adjust printing papers of different widths.
Claims (6)
1. A thermal printer includes
A base (1);
a motor (16) arranged on the base (1);
a transmission gear set (14) which is arranged on the machine base (1) and is connected with the power output end of the motor (16);
a rubber roller (13) rotatably arranged on the base (1) and provided with a driving gear (131) meshed with the transmission gear set (14);
a frame (4) which is detachably arranged on the machine base (1) through a disengaging mechanism (2);
a print head assembly (43) provided on the frame (4) and adjacent to the rubber roller (13);
the printer is characterized in that a first positioning rod (41) and a second positioning rod (42) are arranged on the machine frame (4) in parallel with the printing head assembly (43) at intervals in the length direction, and a first positioning groove (11) and a second positioning groove (12) for arranging the first positioning rod (41) and the second positioning rod (42) are respectively formed in the front end face of the machine base (1);
the disengagement mechanism (2) comprises
A lock piece (23) rotatably arranged on the base (1), wherein the lock piece (23) is provided with a first lock tongue (231) capable of locking the first positioning rod (41) in the first positioning groove (11) and a second lock tongue (232) capable of locking the second positioning rod (42) in the second positioning groove (12);
the transmission block (22) is coaxially connected with the locking plate (23) on the machine base (1) and can synchronously drive the locking plate (23) to rotate; and
the middle part of the deflector rod (21) can be rotatably arranged on the base (1), one end of the deflector rod is exposed to form a deflector part (213), and the other end of the deflector rod can drive the transmission block (22) to rotate.
2. The thermal printer according to claim 1, wherein the front end of the housing (1) has a connecting portion (1 a) extending forward from both sides thereof, and the first positioning slot (11) and the second positioning slot (12) are formed on the connecting portion (1 a); the disengaging mechanism (2) further comprises a rotating shaft (25) arranged on the machine base (1), the rotating shaft (25) is parallel to the length direction of the rubber roller (13), and the locking plates (23) are two pieces which are respectively positioned at two ends of the rotating shaft (25) and close to the respective connecting parts (1 a).
3. A thermal printer according to claim 2, wherein said locking tabs (23) are located inside the connecting portion (1 a), said driving block (22) is located outside the connecting portion (1 a), and said driving block (22) is connected to one of the locking tabs (23) by a connecting pin (27) passing through the connecting portion (1 a).
4. A thermal printer according to claim 2, wherein the locking plates (23) are integrally connected by a connecting bridge (24), and a return spring is provided on the connecting bridge (24) to keep the locking plates (23) in a state of locking the first positioning rod (41) and the second positioning rod (42) all the time.
5. A thermal printer according to claim 1, wherein the housing (1) extends laterally outwardly with a blocking wall (1 b), and one side of the lever (21) is formed with a flexible curved strip portion (212), and the curved strip portion (212) can counteract the lever (21) against the blocking wall (1 b).
6. The thermal printer according to claim 1, wherein the transmission block (22) has a force receiving portion (221) at one end, and correspondingly, the lever (21) has a pressing portion (211) that abuts against the force receiving portion (221), and the pressing portion (211) is pressed down to rotate the transmission block (22) and thus the lock piece (23), and the first lock tongue portion (231) and the second lock tongue portion (232) simultaneously unlock the first positioning lever (41) and the second positioning lever (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910758067.4A CN110421983B (en) | 2019-08-16 | 2019-08-16 | Thermal printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910758067.4A CN110421983B (en) | 2019-08-16 | 2019-08-16 | Thermal printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110421983A CN110421983A (en) | 2019-11-08 |
| CN110421983B true CN110421983B (en) | 2024-04-02 |
Family
ID=68414987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910758067.4A Active CN110421983B (en) | 2019-08-16 | 2019-08-16 | Thermal printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110421983B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113276566A (en) * | 2020-02-20 | 2021-08-20 | 深圳市博思得科技发展有限公司 | Label printing device |
| CN111946690B (en) * | 2020-08-14 | 2022-05-03 | 安徽肥地肥业有限责任公司 | Constant-speed hydraulic driving device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189814A (en) * | 2010-02-22 | 2011-09-21 | 精工电子有限公司 | Printer |
| CN202782190U (en) * | 2012-09-20 | 2013-03-13 | 珠海赛达精密电子技术有限公司 | Core of receipt printer |
| CN106660381A (en) * | 2014-07-23 | 2017-05-10 | 富士通电子零件有限公司 | Printer device |
| CN207059504U (en) * | 2017-07-26 | 2018-03-02 | 深圳市东海精工科技有限公司 | Lock and fiscal printer |
| CN211222628U (en) * | 2019-08-16 | 2020-08-11 | 宁波精芯科技有限公司 | Thermal printer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6533433B2 (en) * | 2015-08-07 | 2019-06-19 | セイコーインスツル株式会社 | Printing unit and thermal printer |
-
2019
- 2019-08-16 CN CN201910758067.4A patent/CN110421983B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189814A (en) * | 2010-02-22 | 2011-09-21 | 精工电子有限公司 | Printer |
| CN202782190U (en) * | 2012-09-20 | 2013-03-13 | 珠海赛达精密电子技术有限公司 | Core of receipt printer |
| CN106660381A (en) * | 2014-07-23 | 2017-05-10 | 富士通电子零件有限公司 | Printer device |
| CN207059504U (en) * | 2017-07-26 | 2018-03-02 | 深圳市东海精工科技有限公司 | Lock and fiscal printer |
| CN211222628U (en) * | 2019-08-16 | 2020-08-11 | 宁波精芯科技有限公司 | Thermal printer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110421983A (en) | 2019-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110481173B (en) | Thermal printer | |
| RU2120387C1 (en) | Printer cartridge, printer, device for paper feeding | |
| CN110421983B (en) | Thermal printer | |
| US20040096256A1 (en) | Printer and commodity information processing apparatus | |
| EP0764542B1 (en) | A printing apparatus having an auto cutter | |
| CA2239903C (en) | Thermal printer with spring biased drive roller/platen | |
| TWI680888B (en) | Printing unit and thermal printer | |
| CN210821438U (en) | Thermal printer | |
| CN211222628U (en) | Thermal printer | |
| EP1000760B1 (en) | Printer | |
| CN210881358U (en) | Thermal printer | |
| CN210821422U (en) | Thermal printer | |
| US6412995B2 (en) | Printing apparatus and platen with a plurality of impact surfaces | |
| CN110561918A (en) | Thermal printer | |
| CN212073377U (en) | Thermal printer | |
| US4795282A (en) | Paper guide and stop for multi-function printer | |
| EP2511100A1 (en) | Double-sided printer for printing receipts on thermal paper | |
| JP3274910B2 (en) | Printer | |
| JP3691324B2 (en) | Double thermal printer | |
| RU2156189C2 (en) | Printer of automated bank machine and method of printing on it | |
| KR100759515B1 (en) | Dot matrix printer having sensor detection operating state of ribbon cartridge | |
| EP0807523B1 (en) | Printer | |
| EP0807527B1 (en) | Printer | |
| KR100416498B1 (en) | A personal computer linkage device to issue a certification public discontent document | |
| KR200213419Y1 (en) | A personal computer linkage device to issue a certification public discontent document |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |