CN211222628U - Thermal printer - Google Patents
Thermal printer Download PDFInfo
- Publication number
- CN211222628U CN211222628U CN201921337173.7U CN201921337173U CN211222628U CN 211222628 U CN211222628 U CN 211222628U CN 201921337173 U CN201921337173 U CN 201921337173U CN 211222628 U CN211222628 U CN 211222628U
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- Prior art keywords
- locking
- positioning rod
- base
- positioning
- positioning groove
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- 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.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000007639 printing Methods 0.000 claims abstract description 13
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
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Abstract
A thermal printer comprises a base, a motor, a transmission gear set, a printing head component, a frame and a rubber roller, and is characterized in that the frame is provided with a first positioning rod and a second positioning rod at intervals in the length direction parallel to the printing head component, and the front end surface of the base is respectively provided with a first positioning groove and a second positioning groove for the arrangement of the first positioning rod and the second positioning rod; the releasing mechanism comprises a locking plate, a transmission block and a shifting lever, wherein the locking plate is provided with a first locking piece part capable of locking the first positioning rod in the first positioning groove and a second locking piece part capable of locking the second positioning rod in the second positioning groove. The driving plate is driven to rotate by the driving rod matched with the transmission block, so that the first positioning groove and the second positioning groove are unlocked, the frame and the base are separated, the operation is convenient and fast, and the structure is simple and practical.
Description
Technical Field
The utility model relates to a thermal printer is applied to cash dispenser, supermarket and receives the bill of cash desk and prints.
Background
Thermal printers are mostly arranged on automatic teller machines of banks and cash registers of supermarkets and are used for printing transaction receipts or tickets. A thermal printer generally has a casing in which a movement is installed, the movement including a printhead assembly, a base, and a paper cutter, wherein the printhead assembly is installed above the base, and the paper cutter is installed at one side of the base and the printhead assembly. A paper feeding passage is formed between the print head assembly and the frame, and the thermal printing paper passes through the paper feeding passage.
The upper end of a machine base of the thermal printer core is provided with a rubber roller, a motor is arranged in the machine base, and the motor drives the rubber roller to rotate through a transmission mechanism such as a gear. The printing head assembly comprises a printing head and a thermosensitive sheet, the thermosensitive sheet is arranged opposite to the rubber roller, and the thermosensitive sheet heats the thermosensitive printing paper to form characters and patterns.
Because the printing paper needs to be replaced frequently when the thermal printer works, the printing head needs to be separated from the base frequently, namely, the cover opening operation is carried out; and in the other case, the cover opening operation is also required when a paper jam is encountered. Therefore, the existing printhead assembly and the base are provided with a cover opening mechanism to facilitate the cover opening operation, and the related documents can refer to the previous patent documents of the applicant, such as the chinese patent invention patent No. ZL201410604555.7, namely the thermal printer of bills (the publication number is CN 104309311B); reference may also be made to the thermal printer of the invention of China having patent No. ZL201710535432.6 (publication No. CN 107310276B).
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a thermal printer of simple operation of uncapping is provided in addition to foretell technical current situation.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a thermal printer includes
A machine base;
the motor is arranged on the base;
the transmission gear set is arranged on the base and connected with the power output end of the motor;
the rubber roller can be rotatably arranged on the engine base and is provided with a driving gear meshed with the transmission gear set;
the frame is detachably arranged on the base through a release mechanism;
the printing head assembly is arranged on the rack and is close to the printing head assembly;
the printer is characterized in that a first positioning rod and a second positioning rod are arranged on the rack at intervals in the length direction parallel to the printing head assembly, and a first positioning groove and a second positioning groove for the first positioning rod and the second positioning rod are respectively arranged on the front end surface of the machine base;
the release 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 to the base with the lock plate and can synchronously drive the lock plate to rotate; and
and the middle part of the deflector rod can be rotatably arranged on the 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, two sides of the front end of the machine base respectively extend forwards to form a connecting part, and the first positioning groove and the second positioning groove are arranged on the connecting parts; the release mechanism also comprises a rotating shaft arranged on the base, the rotating shaft is arranged in parallel with the length direction of the rubber roller, and the two locking plates are respectively positioned at two ends of the rotating shaft and are close to respective connecting parts.
Furthermore, the locking plate is located the connecting portion inboard, the driving block is located the connecting portion outside, the driving block is connected with one of them locking plate through a connecting pin that runs through connecting portion.
Furthermore, the locking plates are connected into a whole through a connecting bridge, and a return spring is arranged on the connecting bridge, so that the locking plates are always kept in the states of the first locating rod and the second locating rod.
In consideration of the operation hand feeling and stability of the shifting lever, the base extends outwards from the side direction to form a blocking wall, and one side of the shifting lever is formed with an elastic curved strip part which is abutted against the blocking wall and can react on the shifting lever.
Furthermore, one end of the transmission block is provided with a stress part, correspondingly, one end of the shifting lever is provided with an extrusion part which is abutted against the stress part, the extrusion part can enable the transmission block to rotate when being pressed down, and further enable the locking plate to rotate, and the first locking tongue part and the second locking tongue part simultaneously release the locking of the first positioning rod and the second positioning rod.
Compared with the prior art, the utility model has the advantages of: the driving plate is driven to rotate by the driving rod matched with the transmission block, so that the first positioning groove and the second positioning groove are unlocked, the frame and the base are separated, the operation is convenient and fast, and the structure is simple and practical.
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 the base portion of fig. 2 from another perspective.
Fig. 4 is a schematic view of the housing portion of fig. 2 from another perspective.
Fig. 5 is a reduced exploded view of fig. 3.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, 2 and 3, the thermal printer in this embodiment includes a base 1, a motor 16, a drive gear set 14, a rubber roller 13, a frame 4, a printhead assembly 43, and a release mechanism 2.
The front end surface of the machine base 1 is respectively provided with a first positioning groove 11 and a second positioning groove 12; specifically, two sides of the front end of the base 1 respectively extend forward to form a connecting part 1a, and a first positioning groove 11 and a second positioning groove 12 are formed in the connecting part 1 a; the machine base 1 is laterally extended outwards with a blocking wall 1 b. The motor 16 is arranged on the machine base 1.
The transmission gear set 14 is arranged on the machine base 1 and 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 release mechanism 2; the frame 4 is provided with a first positioning rod 41 and a second positioning rod 42 at an interval in parallel with the longitudinal direction of the head assembly 43, and as shown in fig. 4, the head assembly 43 is provided on the frame 4 and is close to the head assembly 43.
As shown in fig. 5, the release mechanism 2 in this embodiment includes a locking piece 23, a transmission block 22, a shift lever 21, and a rotation shaft 25. The locking plate 23 is rotatably disposed on the base 1 and located inside the connecting portion 1a, and the locking plate 23 has a first locking portion 231 capable of locking the first positioning rod 41 in the first positioning groove 11 and a second locking portion 232 capable of locking the second positioning rod 42 in the second positioning groove 12; the locking pieces 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 abutted 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 being extended by the first positioning lever 41 and the second positioning lever 42 at all times.
The driving block 22 is located outside the connecting portion 1a and has a force-receiving portion 221 at one end, the driving block 22 and the locking pieces 23 are coaxially connected to the base 1 and can synchronously drive the locking pieces 23 to rotate, and the driving block 22 is further connected to one of the locking pieces 23 through a connecting pin 27 passing through the connecting portion 1 a.
The middle part of the shift lever 21 is rotatably arranged on the machine base 1, one end of the shift lever is exposed to form a shift part 213, and the other end of the shift lever can drive the transmission block 22 to rotate. One side of the shift lever 21 is formed with an elastic curved strip portion 212, and the curved strip portion 212 can react with the shift lever 21 in abutment with the stopper wall 1 b. One end of the shift lever 21 has a pressing portion 211 abutting against the force receiving portion 221, and when the pressing portion 211 is pressed down, the driving block 22 is rotated, and the locking piece 23 is rotated, and the first locking portion 231 and the second locking portion 232 simultaneously unlock the first positioning rod 41 and the second positioning rod 42.
The rotating shaft 25 is arranged on the base 1 and is parallel to the length direction of the rubber roller 13, and the locking pieces 23 are two pieces which are respectively arranged at two ends of the rotating shaft 25 and are close to the respective connecting parts 1 a.
Under the initial condition, the frame is connected with the frame, pulls the portion of stirring of driving lever, and the extrusion portion acts on the atress portion of driving block, and the driving block rotates to drive two locking plates and pivot and rotate, the locking of first constant head tank and second constant head tank is broken away from first constant head tank and second constant head tank simultaneously to the contact of first spring bolt portion and second spring bolt portion on the locking plate, and the frame is thrown off with the frame like this.
When the first positioning rod and the second positioning rod are connected, the first positioning rod is aligned to the first positioning groove, the second positioning rod is aligned to the second positioning groove, the first positioning rod and the second positioning rod overcome the acting force of the reset spring and are pressed into the respective positioning grooves to be assembled in place, and the first lock tongue portion and the second lock tongue portion lock the first positioning rod and the second positioning rod respectively and simultaneously to limit the first positioning rod and the second positioning rod to be separated from the machine base.
Referring to fig. 5, the front end surface of the base 1 in this embodiment is provided with a transverse sliding hole 17, the sliding hole 17 is provided with two adjusting blocks 3 which can be relatively far away from and close to each other, specifically, the adjusting blocks 3 are formed with racks which are engaged with an intermediate gear 3b for transmission, and the intermediate gear 3b can be rotatably arranged on the base 1, so as to drive one of the adjusting blocks 3 and the other adjusting block 3 to move simultaneously. The distance between the regulating blocks 3 can be used to adjust printing paper of different widths.
Claims (6)
1. A thermal printer includes
A machine base (1);
a motor (16) arranged on the base (1);
the transmission gear set (14) is arranged on the base (1) and is connected with the power output end of the motor (16);
the rubber roller (13) is rotatably arranged on the engine base (1) and is provided with a driving gear (131) meshed with the transmission gear set (14);
a frame (4) which is detachably arranged on the base (1) through a disconnecting mechanism (2);
a printhead assembly (43) disposed on the frame (4) and adjacent to the printhead assembly (43);
the printer is characterized in that a first positioning rod (41) and a second positioning rod (42) are arranged on the rack (4) parallel to the length direction of a printing head assembly (43) at intervals, and a first positioning groove (11) and a second positioning groove (12) for the first positioning rod (41) and the second positioning rod (42) to be arranged are respectively arranged on the front end surface of the machine base (1);
the release mechanism (2) comprises
The locking plate (23) is rotatably arranged on the machine base (1), and the locking plate (23) is provided with a first locking tongue part (231) capable of locking the first positioning rod (41) in the first positioning groove (11) and a second locking tongue part (232) capable of locking the second positioning rod (42) in the second positioning groove (12);
the transmission block (22) is coaxially connected to the machine base (1) with the locking plate (23) and can synchronously drive the locking plate (23) to rotate; and
the middle part of the deflector rod (21) is 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 frame (1) has connecting portions (1a) extending forward from both sides of the front end thereof, and the first positioning groove (11) and the second positioning groove (12) are formed in the connecting portions (1 a); the disengaging mechanism (2) further comprises a rotating shaft (25) arranged on the base (1), the rotating shaft (25) is arranged in parallel to the length direction of the rubber roller (13), and the locking plates (23) are two and are respectively positioned at two ends of the rotating shaft (25) and are close to respective connecting parts (1 a).
3. A thermal printer according to claim 2, characterised in that the locking tab (23) is located inside the connecting portion (1a) and the actuating block (22) is located outside the connecting portion (1a), the actuating block (22) being connected to one of the locking tabs (23) by a connecting pin (27) passing through the connecting portion (1 a).
4. The thermal printer according to claim 2, wherein the locking pieces (23) are integrally connected by a connecting bridge (24), and a return spring is provided on the connecting bridge (24) to keep the locking pieces (23) in a state of being extended by the first positioning rod (41) and the second positioning rod (42) at all times.
5. The thermal printer according to claim 1, wherein the frame (1) has a retaining wall (1b) extending laterally outward, and a curved portion (212) having elasticity is formed on one side of the lever (21), the curved portion (212) being capable of reacting against the lever (21) in opposition to the retaining wall (1 b).
6. The thermal printer according to claim 1, wherein the actuator block (22) has a force receiving portion (221) at one end thereof, and correspondingly, the lever (21) has a pressing portion (211) at one end thereof abutting against the force receiving portion (221), the pressing portion (211) being depressed to rotate the actuator block (22) and thus the locking plate (23), the first locking tongue portion (231) and the second locking tongue portion (232) simultaneously unlocking the first positioning rod (41) and the second positioning rod (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337173.7U CN211222628U (en) | 2019-08-16 | 2019-08-16 | Thermal printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337173.7U CN211222628U (en) | 2019-08-16 | 2019-08-16 | Thermal printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211222628U true CN211222628U (en) | 2020-08-11 |
Family
ID=71937981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921337173.7U Withdrawn - After Issue CN211222628U (en) | 2019-08-16 | 2019-08-16 | Thermal printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211222628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421983A (en) * | 2019-08-16 | 2019-11-08 | 宁波精芯科技有限公司 | Thermal printer |
-
2019
- 2019-08-16 CN CN201921337173.7U patent/CN211222628U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421983A (en) * | 2019-08-16 | 2019-11-08 | 宁波精芯科技有限公司 | Thermal printer |
| CN110421983B (en) * | 2019-08-16 | 2024-04-02 | 宁波精芯科技有限公司 | Thermal printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200811 Effective date of abandoning: 20240402 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200811 Effective date of abandoning: 20240402 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |