CN106926592B - Printer with automatic retraction cutter structure and automatic retraction method thereof - Google Patents
Printer with automatic retraction cutter structure and automatic retraction method thereof Download PDFInfo
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- CN106926592B CN106926592B CN201710144622.5A CN201710144622A CN106926592B CN 106926592 B CN106926592 B CN 106926592B CN 201710144622 A CN201710144622 A CN 201710144622A CN 106926592 B CN106926592 B CN 106926592B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 230000009471 action Effects 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 7
- 238000007639 printing Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
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- 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
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/66—Applications of cutting devices
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Abstract
A printer having an automatic retracting cutter structure, the automatic retracting cutter structure comprising: a movable blade movably disposed with respect to the fixed blade; the driving system comprises a gear tooth assembly and a motor, wherein the gear tooth assembly is linked with the movable blade, the motor drives the gear tooth assembly, and the gear tooth assembly drives the movable blade to linearly move back and forth; a pre-tightening mechanism for acting on the movable blade so that there is a contact pressure between the movable blade and the fixed blade; and the releasing mechanism is connected with the pre-tightening mechanism and is used for releasing the pre-tightening mechanism from acting on the movable blade. And a method for automatic printer rollback, comprising: s1, starting a release mechanism, wherein the release mechanism is linked with the pre-tightening mechanism to separate the action on the movable blade; s2, triggering the first detection switch; and S3, the controller controls the motor to rotate reversely, and the motor backs the movable blade to an initial position through the gear tooth assembly.
Description
Technical Field
The invention relates to the technical field of miniature printers, in particular to a printer with an automatic cutter retracting structure and an automatic cutter retracting method thereof.
Background
Nowadays, thermal printers are increasingly used in a wide range, and in particular, such printers are suitably used for printing of various labels, receipts, tickets, and the like. The variety of thermal printers is increasing, and the number of types of thermal printers is varying. Printing can be performed without using toner, ink, or the like by performing printing with a heated thermal head against a special recording sheet that changes color when heat is applied thereto.
There are known many printers with a cutter provided with a cutting mechanism for cutting a printed recording sheet. The cutting mechanism is typically constructed of a fixed blade and a slidable movable blade. When cutting the recording sheet, the movable blade slides so as to ride on the upper surface of the fixed blade. Thereafter, the two blades sandwich the recording sheet like scissors and cut it. However, the fixed blade and the movable blade often bite into each other due to jamming of the recording sheet when the recording sheet is cut. If such a bite occurs, printing needs to be interrupted and a recovery job needs to be executed immediately. The bite needs to be restored as soon as possible in order to return to the print job quickly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a printer with an automatic cutter retracting structure.
In order to solve the technical problems, the invention adopts the following technical measures:
a printer having an automatic retracting cutter structure, the automatic retracting cutter structure comprising:
a movable blade for sandwiching and cutting the recording sheet together with the fixed blade, which is movably disposed with respect to the fixed blade;
the driving system comprises a gear tooth assembly linked with the movable blade and a motor driving the gear tooth assembly, the motor can rotate forwards or reversely, and the gear tooth assembly drives the movable blade to linearly move back and forth;
a pre-tightening mechanism for acting on the movable blade so that there is a contact pressure between the movable blade and the fixed blade;
and the releasing mechanism is connected with the pre-tightening mechanism and used for releasing the action of the pre-tightening mechanism on the movable blade so as to release the contact pressure between the movable blade and the fixed blade.
The invention can be further perfected by the following technical measures:
as a further improvement, the motor further comprises a first detection switch and a controller, wherein the controller is electrically connected with the first detection switch and the motor respectively; when the release mechanism runs in place, the first detection switch is triggered, so that the controller controls the motor to rotate reversely to retract the movable blade. Preferably, the electric motor further comprises a second detection switch, the gear tooth assembly comprises a trigger part, the trigger part triggers the second detection switch after the movable blade retracts to the right position, and the controller controls the electric motor to stop rotating reversely.
As a further improvement, the automatic retracting cutter mechanism further comprises a casing, and the automatic retracting cutter mechanism is arranged in the casing, wherein the releasing mechanism is arranged on the outer side of the casing.
As a further improvement, the release mechanism comprises a pressure lever and a return elastic piece, the middle part of the pressure lever is provided with a rotating shaft connecting part, the return elastic piece is sleeved on the rotating shaft connecting part, the pressure lever is connected with the casing through the rotating shaft connecting part, and the rotating shaft connecting part is a lever fulcrum; one end of the pressure lever is provided with a connecting part connected with the pre-tightening mechanism, and the other end of the pressure lever is a movable end; the first detection switch is arranged at a position close to the movable end of the pressure lever.
As a further improvement, the release mechanism comprises a push rod, a connecting piece and a return elastic piece, wherein the connecting piece is arranged in the middle of the push rod and is connected with the pre-tightening mechanism; the return elastic piece is arranged on the shell and connected with one end of the push rod, the other end of the push rod is a movable end, and the first detection switch is arranged at a position close to the movable end of the push rod.
As a further improvement, the gear tooth assembly comprises a worm, a worm wheel and a connecting rod, the motor is connected with the worm, and the worm wheel is meshed with the worm; the connecting rod is along the axial arch of worm wheel, the connecting rod is relative the worm wheel eccentric settings, the worm wheel pass through the connecting rod with movable blade is connected.
As a further improvement, the pre-tightening mechanism has a spring plate, the spring plate is connected with the movable blade, and the spring plate generates an elastic force towards the fixed blade to the movable blade.
In addition, a method for automatically backing a printer is also provided, and with the printer in any one of the above items, the method for automatically backing the printer includes:
s1, starting a release mechanism, wherein the release mechanism is linked with the pre-tightening mechanism to separate from the action on the movable blade, and the contact pressure between the movable blade and the fixed blade is released;
s2, triggering the first detection switch after the release mechanism runs in place;
and S3, the controller controls the motor to rotate reversely, and the motor backs the movable blade to an initial position through the gear tooth assembly.
Preferably, after step S3, the method further comprises the following steps:
a second detection switch is arranged in the printer and is used for detecting whether the movable blade returns to the right position or not; when the second detection switch detects that the movable blade is retracted to the right position, the controller controls the motor to stop reversing, and the automatic retraction process is finished.
Compared with the prior art, the invention has the following advantages:
by applying the biasing mechanism to the movable blade, the contact pressure between the movable blade and the fixed blade can be released to some extent when the movable blade moves back and forth, and therefore, problems such as jamming of the recording paper are reduced to a large extent, and the fixed blade and the movable blade are prevented from being engaged with each other. Furthermore, a release mechanism is additionally arranged to link the pre-tightening mechanism, so that the pre-tightening mechanism is separated from the action on the movable blade, and the problem that the fixed blade and the movable blade are mutually occluded is solved. When the bite is made, it can be released more reliably, and cutting can be performed in a more stable state.
Drawings
FIG. 1 is a schematic view of a printer having an automatic cutter retracting structure according to a first embodiment of the present invention;
FIG. 2 is a schematic illustration of the printer shown in FIG. 1 with an automatic backspacing cutter configuration removing the housing;
FIG. 3 is an exploded view of the printer of FIG. 2 having an automatic retraction cutter structure;
FIG. 4 is a schematic view of a printer having an automatic cutter retracting structure according to a second embodiment of the present invention;
fig. 5 is a schematic view of the printer shown in fig. 4 with an automatic reverse cutter structure for removing a housing.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention mainly solves the technical problems that a fixed blade and a movable blade are often mutually occluded due to the jamming of recording paper, and the recovery operation is inconvenient due to the occlusion. The main idea of the invention is that the traditional linkage structure of a rack and a gear is changed, and the structure of a worm wheel and a worm is adopted for transmission, so that the reciprocating movement of the movable blade is more stable and smooth; the pretensioning mechanism is converted from the traditional connection with the fixed blade into the connection with the movable blade, and the contact pressure between the fixed blade and the movable blade is released by the movement of the movable blade, so that the probability of occlusion of the movable blade and the fixed blade is reduced during normal operation, and the problem of occlusion of the two blades is fundamentally solved; the pre-tightening mechanism is directly linked through the release mechanism to break away from the action on the movable blade, so that the pre-tightening mechanism is more direct and rapid, can be released more reliably when being occluded, and can perform cutting in a more stable state.
Example 1:
a printer capable of printing on a recording sheet drawn from a paper roll and cutting the recording sheet appropriately for use as a receipt, or the like. The printer mainly comprises an integral shell structure, a flattening unit and a main unit. The flattening unit includes a stationary blade and a mating cooperating mechanism. The design emphasis of the present application is mainly focused on the main unit, which includes the movable blade 20, the pretensioning mechanism 30, the drive system 50, and the release mechanism, see fig. 1 and 3.
Referring to fig. 1 and 2, the integral housing structure has a housing 10 for accommodating or assembling the main unit, and the housing 10 is a housing molded from a plastic or metal material. The housing 10 includes an inner housing and an outer housing 11, the inner housing and the outer housing 11 are combined to form a chamber, and the main unit is disposed in the chamber or mounted on the inner housing and the outer housing 11.
Referring to fig. 2 and 3, the movable blade 20 is movably disposed with respect to the fixed blade. The movable blade 20 has a cutting blade 21 having a substantially V-shape as viewed from the tip end such that the length from the root to the cutting edge becomes gradually shorter from both ends toward the middle. When the movable blade 20 moves toward the fixed blade, the recording sheet is sandwiched together with the fixed blade and cut.
Referring to fig. 1 to 3, the pre-tightening mechanism 30 is a spring plate structure, the spring plate has a bending portion 31, and the inner housing is correspondingly provided with an installation groove 112 of the bending portion 31. One end of the elastic piece, which is far away from the bending portion 31, is pressed against the movable blade 20, and the elastic piece generates an elastic force towards the fixed blade for the movable blade 20, so that the movable blade 20 and the fixed blade are kept in mutual contact with each other with a proper contact pressure.
Referring to fig. 2 and 3, the driving system 50 includes a gear tooth assembly for cooperating with the movable blade 20, and a motor 51 for driving the gear tooth assembly, wherein the motor 51 can rotate in a forward direction or a reverse direction, and the gear tooth assembly drives the movable blade 20 to move back and forth linearly. Specifically, the cog assembly has a worm 52, a worm wheel 53, the motor 51 is connected to the worm 52, and the worm wheel 53 is engaged with the worm 52, which rotate with the rotation of the motor 51.
During normal operation, the worm wheel 53 only needs to rotate in one direction, which is defined herein as a forward rotation, and a reverse rotation opposite to the forward rotation. The worm wheel 53 rotates for one circle, and the movable blade 20 is just linked to complete one-time reciprocating movement.
Referring to fig. 2 and 3, the releasing mechanism is connected to the pre-tightening mechanism 30, i.e. to the spring plate. The spring piece presses against one end of the movable blade 20 and has a hooking portion 32 bent toward the release mechanism. The release mechanism has a pressing rod 41, the pressing rod 41 operates by using a lever principle, the outer shell 11 has a support 111, and the pressing rod 41 has a rotating shaft connecting part 412 installed on the support 111 to form a lever fulcrum. One end of the pressing rod 41 is provided with a connecting part 411 connected with the hooking part 32, and the other end of the pressing rod 41 is a movable end 413. When the movable end 413 is pressed, the connecting portion 411 lifts up the elastic piece, so that the elastic piece is released from the pressing force on the movable blade 20, and the contact pressure between the movable blade 20 and the fixed blade is released. The releasing mechanism further has a resilient member 42, and in this embodiment, the resilient member 42 is a torsion spring. The resilient member 42 is disposed on the connecting portion 412, and the return of the pressing rod 41 is achieved by a torsion spring.
Referring to fig. 2 and 3, in the embodiment, the controller (not shown) and the two detection switches are used to realize the automatic control. The controller (not shown) is a single chip microcomputer, and the controller (not shown) is electrically connected to the first detecting switch 61, the second detecting switch 62 and the motor 51, and the electrical connection relationship may be a wired electrical connection or a wireless electrical connection.
When the release mechanism is in place, the first detection switch 61 is triggered, so that a circuit structure of a certain part in a controller (not shown) is turned off or on, so that the controller (not shown) controls the motor 51 to rotate in a reverse direction to retract the movable blade 20, and the movable blade rotates in a direction opposite to the normal rotation direction, which further facilitates the release of the engagement.
The top of the worm wheel 53 has a boss 532, and the boss 532 has two opposite triggering portions 5321 protruding outward from the side wall of the boss 532, that is, the two triggering portions 5321 are arranged at 180 °. When the movable blade 20 retracts to a certain position, the triggering portion 5321 triggers the second detection switch 62, so that a circuit structure of a certain part of a controller (not shown) is turned off or on, and the controller (not shown) controls the motor 51 to stop rotating in the reverse direction.
Example 2:
embodiment 2 differs from embodiment 1 in that the structure of the release mechanism used differs, and there is a change in the flexibility of the pretensioning mechanism 30, the housing 10, and the like.
Referring to fig. 4 and 5, in embodiment 2, the release mechanism includes a push rod 41a and a connecting member 43a, and the connecting member 43a is disposed in the middle of the push rod 41 a. The connecting piece 43a adopts a spring structure, and two connecting pieces 43a are respectively connected with the pre-tightening mechanism 30, so that the connection stability is better, and the linkage is more effective during starting and running. In this embodiment, the pre-tightening mechanism 30 does not need to have the hooking portion 32, and the housing 10 has a hollow protection pillar corresponding to the connecting member 43a, and the protection pillar has an abdicating groove along the pushing and restoring direction.
Preferably, a resilient member 42a is additionally provided, the resilient member 42a is disposed on the housing 10, and the resilient member 42a is connected to an end 411a of the push rod 41 a. The other end of the push rod 41a is a movable end 412a, and the first detecting switch 61 is disposed near the movable end 412a of the push rod 41 a. When the push rod 41a is pushed, the push rod 41a pulls the pre-tightening mechanism 30 through the connecting piece 43a to be separated from the abutting relation with the movable blade 20. After the retraction is completed, the action on the push rod 41a is released, and the return elastic member 42a generates an elastic force to reset the push rod 41 a.
Example 3:
the method for realizing automatic rollback by applying the printer in the embodiments 1 and 2 specifically comprises the following steps:
s1, starting the release mechanism, wherein the release mechanism is linked with the pre-tightening mechanism 30 to separate the action on the movable blade 20, and the contact pressure between the movable blade 20 and the fixed blade is released:
specifically, when the engagement of the fixed blade with the movable blade 20 occurs, the release mechanism is manually pushed or pressed; accordingly, the release mechanism pulls the pretensioner mechanism 30 away from the pressing action on the movable blade 20, so that the contact pressure between the movable blade 20 and the fixed blade is released.
S2, triggering the first detection switch 61 after the release mechanism runs in place;
s3, the controller (not shown) controls the motor 51 to rotate reversely, and the motor 51 retracts the movable blade 20 to the initial position through the gear tooth assembly;
and S4, when the second detection switch 62 detects that the movable blade 20 is retracted to the right position, the controller (not shown) controls the motor 51 to stop rotating reversely, and the automatic retraction process is ended.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A printer having an automatic retracting cutter structure, the automatic retracting cutter structure comprising:
a movable blade for sandwiching and cutting the recording sheet together with the fixed blade, which is movably disposed with respect to the fixed blade;
the driving system comprises a gear tooth assembly linked with the movable blade and a motor driving the gear tooth assembly, the motor can rotate forwards or reversely, and the gear tooth assembly drives the movable blade to linearly move back and forth;
a pre-tightening mechanism for acting on the movable blade so that there is a contact pressure between the movable blade and the fixed blade;
a release mechanism connected to the pre-tightening mechanism, for releasing the pre-tightening mechanism from the action on the movable blade, thereby releasing the contact pressure between the movable blade and the fixed blade;
the automatic retraction cutter structure is arranged in the machine shell, wherein the release mechanism is arranged on the outer side of the machine shell;
the release mechanism comprises a pressure lever and a return elastic piece, the middle part of the pressure lever is provided with a rotating shaft connecting part, the return elastic piece is sleeved on the rotating shaft connecting part, the pressure lever is connected with the shell through the rotating shaft connecting part, and the rotating shaft connecting part is a lever fulcrum; one end of the pressure lever is provided with a connecting part connected with the pre-tightening mechanism, and the other end of the pressure lever is a movable end; the first detection switch is arranged at a position close to the movable end of the pressure lever;
or the release mechanism comprises a push rod, a connecting piece and a return elastic piece, wherein the connecting piece is arranged in the middle of the push rod and is connected with the pre-tightening mechanism; the return elastic piece is arranged on the shell and connected with one end of the push rod, the other end of the push rod is a movable end, and the first detection switch is arranged at a position close to the movable end of the push rod.
2. The printer with the automatic cutter retracting structure as claimed in claim 1, further comprising a first detection switch and a controller, wherein the controller is electrically connected to the first detection switch and the motor respectively; when the release mechanism runs in place, the first detection switch is triggered, so that the controller controls the motor to rotate reversely to retract the movable blade.
3. The printer with the automatic cutter retracting structure according to claim 1, further comprising a second detection switch, wherein the gear assembly comprises a trigger portion, the trigger portion triggers the second detection switch after the movable blade retracts to the right position, and the controller controls the motor to stop rotating in the reverse direction.
4. The printer with an automatic cutter retracting structure according to claim 1, wherein the gear tooth assembly comprises a worm, a worm wheel and a connecting rod, the motor is connected with the worm, and the worm wheel is meshed with the worm; the connecting rod is along the axial arch of worm wheel, the connecting rod is relative the worm wheel eccentric settings, the worm wheel pass through the connecting rod with movable blade is connected.
5. The printer of claim 1, wherein the pre-tightening mechanism comprises a spring plate, the spring plate is connected to the movable blade, and the spring plate exerts a spring force on the movable blade toward the fixed blade.
6. A method of automatic printer rollback using the printer of any one of claims 2 to 5, the method comprising:
s1, starting a release mechanism, wherein the release mechanism is linked with a pre-tightening mechanism to separate the action on the movable blade, and the contact pressure between the movable blade and the fixed blade is released;
s2, triggering the first detection switch after the release mechanism runs in place;
and S3, the controller controls the motor to rotate reversely, and the motor enables the movable blade to retreat to the initial position through the gear tooth assembly.
7. The method for automatically backing up a printer according to claim 6, further comprising the following steps after step S3:
a second detection switch is arranged in the printer and is used for detecting whether the movable blade returns to the right position or not; when the second detection switch detects that the movable blade is retracted to the right position, the controller controls the motor to stop rotating reversely, and the automatic retraction process is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144622.5A CN106926592B (en) | 2017-03-13 | 2017-03-13 | Printer with automatic retraction cutter structure and automatic retraction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144622.5A CN106926592B (en) | 2017-03-13 | 2017-03-13 | Printer with automatic retraction cutter structure and automatic retraction method thereof |
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| Publication Number | Publication Date |
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| CN106926592A CN106926592A (en) | 2017-07-07 |
| CN106926592B true CN106926592B (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710144622.5A Active CN106926592B (en) | 2017-03-13 | 2017-03-13 | Printer with automatic retraction cutter structure and automatic retraction method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018188254A1 (en) * | 2017-04-13 | 2018-10-18 | 厦门普瑞特科技有限公司 | High-efficiency anti-jamming power device, and printer with fault repairing function and having same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159393A (en) * | 1995-11-21 | 1997-09-17 | 精工爱普生株式会社 | Printer with paper cutter |
| CN101607487A (en) * | 2008-06-18 | 2009-12-23 | 精工电子有限公司 | The printer that has cutter |
| CN202782189U (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 |
| CN203093342U (en) * | 2013-02-28 | 2013-07-31 | 山东新北洋信息技术股份有限公司 | Cutter device and printer with same |
| CN104149495A (en) * | 2014-08-08 | 2014-11-19 | 宁波精芯科技有限公司 | Thermal printer capable of automatically cutting paper |
| CN206551711U (en) * | 2017-03-13 | 2017-10-13 | 厦门普瑞特科技有限公司 | A kind of printer with automatic rollback cutter structure |
-
2017
- 2017-03-13 CN CN201710144622.5A patent/CN106926592B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159393A (en) * | 1995-11-21 | 1997-09-17 | 精工爱普生株式会社 | Printer with paper cutter |
| CN101607487A (en) * | 2008-06-18 | 2009-12-23 | 精工电子有限公司 | The printer that has cutter |
| CN202782189U (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 |
| CN203093342U (en) * | 2013-02-28 | 2013-07-31 | 山东新北洋信息技术股份有限公司 | Cutter device and printer with same |
| CN104149495A (en) * | 2014-08-08 | 2014-11-19 | 宁波精芯科技有限公司 | Thermal printer capable of automatically cutting paper |
| CN206551711U (en) * | 2017-03-13 | 2017-10-13 | 厦门普瑞特科技有限公司 | A kind of printer with automatic rollback cutter structure |
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