CN115042536A

CN115042536A - Modular moving cutter mechanism and control method

Info

Publication number: CN115042536A
Application number: CN202210779316.XA
Authority: CN
Inventors: 余雷
Original assignee: Shanghai X-Chang Telecom Ltd
Current assignee: Shanghai X-Chang Telecom Ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-09-13
Anticipated expiration: 2042-07-04
Also published as: CN115042536B

Abstract

The invention provides a modular moving knife mechanism and a control method. The technical scheme of the invention is as follows: the movable knife mechanism comprises a movable knife module, a movable knife driving module and a movable knife position detection module; the movable knife module comprises a framework body, a movable knife rest and a movable knife, wherein the movable knife rest is arranged on the first side of the framework body and can drive the movable knife to reciprocate in a preset direction under the action of the movable knife driving module; the movable knife driving module is arranged in the framework body and connected with the main control board; the moving blade position detection module comprises a circuit board connected with the main control board, and a photoelectric switch and a key film element which are connected with the circuit board, wherein the circuit board and the photoelectric switch are respectively used for detecting that the moving blade is fed in place and retracted in place; the printer core is half-embedded and detachably arranged on the third side of the framework body. The control method is used for controlling the moving cutter mechanism in a closed loop mode to realize cutter feeding and cutter retracting. According to the invention, the problem that each functional module and the printer core of the movable cutter mechanism adopted by the existing 2-inch automatic cutter thermal printer are inconvenient to replace can be solved.

Description

Modular moving cutter mechanism and control method

Technical Field

The invention belongs to the technical field of printer auxiliary equipment, and particularly relates to a modular moving knife mechanism and a control method.

Background

With the rapid development of digital information, the thermal printing technology is increasingly appearing in the scenes of people's life and work, which relate to the need of printing receipt. For the existing thermal printer, after the receipt is printed, a cutter system provided with the thermal printer is usually adopted to cut off the receipt so that the receipt can be conveniently taken down.

In view of the above background and the recent trend toward miniaturization of thermal printers, 2-inch automatic cutter thermal printers are becoming mainstream in the industry. However, the conventional 2-inch automatic cutter thermal printer mainly has the following problems:

the automatic cutter system adopts the integrated design of all functional modules of the movable cutter mechanism and the movable cutter module and the printer core, when a certain functional module of the movable cutter mechanism needs to be replaced due to the maintenance or the adjustment of the function of the movable cutter mechanism and the printer core needs to be replaced due to the maintenance or the adjustment of the printing pressure, the automatic cutter system can only adopt the mode of integrally replacing the combination of the movable cutter mechanism and the printer core, thereby not only wasting time and energy, but also having poor economical efficiency.

Disclosure of Invention

The invention aims to solve the problem that all functional modules and printer cores of a movable cutter mechanism adopted by the existing 2-inch automatic cutter thermal printer are inconvenient to replace.

In order to achieve the purpose, the invention provides a modular moving blade mechanism and a control method.

According to a first aspect of the present invention, there is provided a modular moving blade mechanism, the moving blade mechanism being applied to a thermal printing assembly, the thermal printing assembly comprising a printer core and a main control board;

the movable knife mechanism comprises a movable knife module, a movable knife driving module and a movable knife position detection module;

the movable knife module comprises a framework body, a movable knife rest and a movable knife, the framework body is provided with a first side, a second side and a third side, the first side is opposite to the second side, and the movable knife rest is arranged on the first side of the framework body and can drive the movable knife to reciprocate in a preset direction under the action of external driving force;

the movable knife driving module is arranged in the framework body and comprises a first motor and a shifting piece, and the shifting piece is in linkage arrangement with a rotating shaft of the first motor to provide the external driving force;

the movable knife position detection module comprises a circuit board, a photoelectric switch and a key film element, wherein the photoelectric switch and the key film element are electrically connected to the circuit board;

the printer core is half-embedded and detachably arranged on the third side of the framework body;

the first motor and the circuit board are electrically connected with the main control board.

Optionally, the movable blade module further comprises a housing, and the framework body further has a fourth side opposite to the third side, and a first end and a second end opposite to each other;

the housing covers the framework body, and the second side and the third side are exposed;

a first guide groove is formed in the first end of the framework body, and a first guide rib matched with the first guide groove is arranged on the inner side of the first end of the housing;

and a second guide groove is formed in the second end of the framework body, and a second guide rib matched with the second guide groove is arranged on the inner side of the second end of the housing.

Optionally, a first positioning column is further disposed at the first end of the framework body, a first positioning hole matched with the first positioning column is disposed at the first end of the housing, and a first guide inclined surface is disposed on a side of the first positioning column facing the fourth side of the framework body;

a second positioning column is further arranged at the second end of the framework body, a second positioning hole matched with the second positioning column is formed in the second end of the housing, and a second guide inclined surface is arranged on one side, facing the fourth side of the framework body, of the second positioning column.

Optionally, a portion of the second side of the frame body, which is opposite to the first motor and the toggle member, is an open area, and the movable blade driving module further includes a first cover plate, which is disposed on the second side of the frame body and covers the open area, so as to fix the first motor and the toggle member in the frame body.

Optionally, the circuit board is a flexible circuit board, and the circuit board is divided into a first sub circuit board, a second sub circuit board and a third sub circuit board;

the first sub circuit board is arranged in the framework body and positioned below the moving tool rest, and the photoelectric switch is arranged on the first sub circuit board and faces the moving tool rest;

the second sub circuit board is arranged on the fourth side of the framework body and is attached to the side wall of the housing, the key film element is arranged on the second sub circuit board and faces the moving tool rest, and a trigger element matched with the key film element is arranged on the rear edge of the moving tool rest;

the second sub circuit board and the third sub circuit board are connected with the first sub circuit board, and the first sub circuit board is connected to the main control board through the third sub circuit board.

Optionally, a circuit board placing area is arranged on the first side of the framework body in a recessed manner, and the first sub circuit board is arranged in the circuit board placing area in an adhering manner;

a circuit board positioning area is arranged on the fourth side of the framework body in a sunken mode, and the second sub circuit board is fixedly arranged on the circuit board positioning area so that the key film element and the trigger element are arranged oppositely.

Optionally, the moving blade position detecting module further includes a second cover plate, the second cover plate is disposed on the first side of the framework body and covers the first sub circuit board, and a through hole opposite to the photoelectric switch is disposed on the second cover plate.

Optionally, the third sub-circuit is in a long strip shape, a first end of the third sub-circuit is connected to the first sub-circuit, and a second end of the third sub-circuit is connected to the main control board through a connector;

the trigger element is a silica gel column.

According to a second aspect of the present invention, there is provided a control method for any one of the above modular moving blade mechanisms, the control method is applied to the main control board, and includes the following steps:

responding to a printing completion signal from the printer core, and outputting a first motor forward driving instruction, wherein the first motor forward driving instruction is used for realizing the moving blade feeding;

stopping outputting the forward driving instruction of the first motor in response to a moving blade feed in-place detection signal from the photoelectric switch;

outputting a first motor reverse driving instruction after a preset time interval, wherein the first motor reverse driving instruction is used for realizing the moving knife retracting;

and stopping outputting the reverse driving instruction of the first motor in response to a moving blade retracting to-position detection signal from the key film element.

The invention has the beneficial effects that:

according to the modular moving blade mechanism, on one hand, the moving blade module comprises a framework body, and the printer core is half-embedded and detachably arranged on the third side of the framework body; on the other hand, the movable knife mechanism adopts a modular framework, namely the movable knife mechanism is divided into a movable knife module, a movable knife driving module and a movable knife position detection module, the movable knife driving module and the movable knife position detection module are combined together in a matched manner on the basis of independent split, and the feeding and retracting are realized under the closed-loop control of the main control board. According to the two aspects, for the 2-inch automatic cutter thermal printer adopting the modularized movable cutter mechanism, each functional module and the printer core of the movable cutter mechanism can be independently detached, so that the replacement is convenient. Therefore, the modular moving cutter mechanism can effectively solve the problem that all functional modules and a printer core of the moving cutter mechanism adopted by the existing 2-inch automatic cutter thermal printer are inconvenient to replace.

The control method is used for controlling the modularized movable cutter mechanism to realize the feed and retreat of the cutter based on the photoelectric and touch combined closed-loop control, belongs to a general inventive concept, and has the beneficial effects that the description is omitted.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The invention may be better understood by reference to the following description taken in conjunction with the accompanying drawings, in which like or similar reference numerals identify like or similar parts throughout the figures.

Fig. 1 is a schematic external view showing a combination of a modular moving blade mechanism, a fixed blade module and a printer core according to an embodiment of the present invention;

fig. 2 shows an external view of a modular moving blade mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic diagram showing the relative positions of the movable knife, the movable knife holder and the skeleton body according to the embodiment of the invention;

fig. 4 shows a schematic diagram of the relative positions of the moving blade carrier and the skeleton body according to an embodiment of the invention;

FIG. 5 illustrates a schematic distribution of a first motor and a toggle within a skeletal body, according to an embodiment of the present invention;

FIG. 6 is a schematic diagram showing the relative positions of the first motor, the toggle member, the moving blade carrier and the moving blade according to an embodiment of the present invention;

fig. 7 is a schematic diagram showing relative positions of the photoelectric switch, the circuit board, and the skeleton body according to the embodiment of the present invention;

FIG. 8 is a schematic diagram showing the relative positions of the moving blade position detection module and the moving blade holder from one perspective according to the embodiment of the present invention;

FIG. 9 is a schematic diagram showing the relative positions of the moving blade position detection module and the moving blade carrier from another perspective according to an embodiment of the present invention;

figure 10 shows a schematic structural diagram of a printer cartridge according to an embodiment of the invention;

FIG. 11 shows a schematic exterior view of a stationary knife module according to an embodiment of the invention;

fig. 12 shows a schematic structural view of a skeleton body at one viewing angle according to an embodiment of the present invention;

fig. 13 shows a schematic structural view of a skeleton body from another view according to an embodiment of the present invention;

FIG. 14 shows a schematic structural view of a housing according to an embodiment of the invention;

FIG. 15 is a schematic view showing the internal structure of the stationary knife module according to the embodiment of the present invention;

FIG. 16 shows a schematic structural view of a setting tool holder according to an embodiment of the invention;

FIG. 17 shows a schematic structural view of a stationary knife according to an embodiment of the present invention;

FIG. 18 shows a schematic view of a stationary knife cover from a perspective in accordance with an embodiment of the present invention;

FIG. 19 shows a schematic view of a stationary knife cover from another perspective in accordance with an embodiment of the present invention;

FIG. 20 shows a schematic view of a stationary knife cover from yet another perspective in accordance with an embodiment of the present invention;

fig. 21 is a schematic external view showing a combination of a fixed blade module and a printer core according to an embodiment of the present invention;

fig. 22 is a schematic view showing the relative positions of the first cover plate and the skeleton body according to the embodiment of the present invention;

fig. 23 shows a schematic diagram of the relative position of the second cover plate and the skeleton body according to the embodiment of the invention.

Detailed Description

In order that those skilled in the art can more fully understand the technical solutions of the present invention, exemplary embodiments of the present invention will be described more fully and in detail below with reference to the accompanying drawings. Obviously, the one or more embodiments of the present invention described below are only one or more of specific ways to implement the technical solutions of the present invention, and are not exhaustive. It should be understood that the technical solutions of the present invention can be implemented in other ways belonging to one general inventive concept, and should not be limited by the exemplary described embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any inventive step on the basis of one or more embodiments of the present invention, shall fall within the scope of protection of the present invention.

Example (b): fig. 1 shows an appearance schematic diagram of a combined body of a modular moving blade mechanism, a fixed blade module and a printer core according to an embodiment of the present invention, fig. 2 shows an appearance schematic diagram of a modular moving blade mechanism according to an embodiment of the present invention, fig. 3 shows a relative position schematic diagram of a moving blade, a moving blade holder and a skeleton body according to an embodiment of the present invention, fig. 4 shows a relative position schematic diagram of a moving blade holder and a skeleton body according to an embodiment of the present invention, fig. 5 shows a distribution schematic diagram of a first motor and a toggle member in a skeleton body according to an embodiment of the present invention, fig. 6 shows a relative position schematic diagram of a first motor, a toggle member, a moving blade holder and a moving blade according to an embodiment of the present invention, fig. 7 shows a relative position schematic diagram of a photoelectric switch, a circuit board and a skeleton body according to an embodiment of the present invention, fig. 8 shows a relative position schematic diagram of a moving blade position detection module and a moving blade holder under an angle of an embodiment of the present invention, fig. 9 is a schematic diagram showing a relative position between the movable blade position detection module and the movable blade holder from another view angle according to the embodiment of the present invention, fig. 10 is a schematic diagram showing a structure of a printer core according to the embodiment of the present invention, and fig. 11 is a schematic diagram showing an appearance of the fixed blade module according to the embodiment of the present invention.

Referring to fig. 1 to 11, a cutter system is formed by a modular movable cutter mechanism and a matched fixed cutter module 300 according to an embodiment of the present invention, and the automatic cutter system is applied to a thermal printing assembly, which includes a printer core 100 and a main control board;

the modular moving blade mechanism of the embodiment of the invention comprises a moving blade module 200, a moving blade driving module 400 and a moving blade position detection module 500;

the movable knife module 200 comprises a framework body 210, a movable knife rest 220 and a movable knife 230, wherein the framework body 210 is provided with a first side, a second side and a third side which are opposite; the moving blade holder 220 is disposed on a first side of the frame body 210 and can drive the moving blade 230 to reciprocate in a predetermined direction under the action of an external driving force;

the moving blade driving module 400 is arranged in the framework body 210 and comprises a first motor 410 and a shifting piece 420, and the shifting piece 420 and a rotating shaft of the first motor 410 are arranged in a linkage manner to provide external driving force for the moving blade carrier 220;

the moving blade position detecting module 500 comprises a circuit board 510, a photoelectric switch 520 and a key membrane element 530, wherein the photoelectric switch 520 and the key membrane element 530 are electrically connected to the circuit board 510, the photoelectric switch 520 is used for detecting that the moving blade 230 is fed in place, and the key membrane element 530 is used for detecting that the moving blade 230 is withdrawn in place;

the printer core 100 is half-embedded and detachably arranged on the third side of the framework 210, and comprises a printing head 110, a second motor 120 and a paper winding shaft 130 which is linked with a rotating shaft of the second motor 120;

the fixed knife module 300 comprises a built-in fixed knife 310, and the fixed knife 310 is used for matching with the movable knife 230 in the cutting in place to cut the slip output through the gap between the printing head 110 and the paper roll 130;

the first motor 410, the circuit board 510, the print head 110, and the second motor 120 are all electrically connected to the main control board.

In the embodiment of the present invention, the printer core 100 is implemented by a standard 2-inch thermal printer core. The modular moving cutter mechanism provided by the embodiment of the invention is matched with the fixed cutter module 300 and standard 2-inch thermal printer cores with different specifications (working voltages) for use, is suitable for various application scenes, and realizes functions of high-voltage high-speed printing and cutting, low-voltage high-speed printing and cutting and the like.

In the embodiment of the present invention, the toggle member 420 is engaged with the movable tool holder 220, and the first motor 410 and the toggle member 420 are linked through a gear box. The main control board is used for controlling the first motor 410 to rotate forward or reversely, the torque output by the first motor 410 is transmitted to the toggle part 420 through the gear box, and the toggle part 420 is used for converting the torque output by the gear box into a linear torque applied to the moving tool rest 220.

Further, fig. 12 shows a schematic structural diagram of the skeleton body at one viewing angle of the embodiment of the present invention, fig. 13 shows a schematic structural diagram of the skeleton body at another viewing angle of the embodiment of the present invention, and fig. 14 shows a schematic structural diagram of the housing of the embodiment of the present invention. Referring to fig. 2, 12-14, in the embodiment of the present invention, the movable blade module 200 further includes a housing 240, and the skeleton body 210 further has a fourth side opposite to the third side, and opposite first and second ends;

the housing 240 covers the skeleton body 210 and the second and third sides of the skeleton body 210 are exposed;

a first guide groove 211 is formed at a first end of the skeleton body 210, and a first guide rib 241 matched with the first guide groove 211 is formed at an inner side of the first end of the housing 240;

a second guide groove 212 is provided on a second end of the frame body 210, and a second guide rib 242 matching the second guide groove 212 is provided on an inner side of the second end of the housing 240.

Still further, referring to fig. 12 to 14, in the embodiment of the present invention, a first positioning column 213 is further disposed at the first end of the skeleton body 210, a first positioning hole 243 matched with the first positioning column 213 is disposed at the first end of the housing 240, and a side of the first positioning column 213 facing the fourth side of the skeleton body 210 is provided with a first guiding inclined plane;

a second positioning post 214 is further disposed at a second end of the framework 210, a second positioning hole 244 matched with the second positioning post 214 is disposed at a second end of the housing 240, and a second guiding inclined surface is disposed on a side of the second positioning post 244 facing a fourth side of the framework 210.

Still further, fig. 15 shows an internal structural schematic diagram of the fixed blade module according to the embodiment of the present invention, wherein the fixed blade cover is not shown. Referring to fig. 11 and 15, in the embodiment of the present invention, the fixed blade module 300 further includes a fixed blade seat 320, a fixed blade cover 330, and an elastic support 340, wherein the fixed blade seat 320 has a bottom plate;

the stationary knife holder 320 and the stationary knife cover 330 are mutually arranged to form a shell with one open side;

the fixed knife 310 is arranged on the fixed knife seat 320 and is obliquely arranged through the elastic supporting body 340, the blade part of the fixed knife 310 is positioned on the opening side of the shell, and the distance between the blade part and the bottom plate of the fixed knife seat 320 is larger than the distance between the root part of the fixed knife 310 and the bottom plate of the fixed knife seat 320;

the stationary blade cover 330 contacts the stationary blade 310.

In the embodiment of the present invention, the fixed knife 310 is obliquely disposed through the elastic support 340, that is, the knife edge portion of the fixed knife 310 is lifted upward relative to the knife root portion thereof, so that the knife edge portion of the fixed knife 310 is in a close contact state with the knife edge portion of the movable knife 230 during the feeding process of the movable knife 230, and further the fixed knife 310 and the movable knife 230 are better matched to cut the printed receipt.

Still further, fig. 16 shows a structural schematic diagram of a stationary knife seat in the embodiment of the present invention, and fig. 17 shows a structural schematic diagram of a stationary knife in the embodiment of the present invention. Referring to fig. 15 to 17, in the embodiment of the present invention, the fixed blade holder 320 further includes a first end plate, a second end plate, and a side plate, and the first end plate, the second end plate, the side plate, and the bottom plate of the fixed blade holder 320 form a structure with an open top and an open side;

a first limiting blocking rib 321 is arranged on the inner side of the first end plate of the fixed cutter seat 320, a second limiting blocking rib 322 is arranged on the inner side of the second end plate of the fixed cutter seat 320, and a first notch 311 matched with the first limiting blocking rib 321 and a second notch 312 matched with the second limiting blocking rib 322 are respectively arranged on two ends of the cutting edge part of the fixed cutter 310;

the elastic support 340 includes a first spring 341 and a second spring 342, and the first spring 341 and the second spring 342 are disposed on the bottom plate of the stationary blade holder 320.

In the embodiment of the present invention, the first limiting rib 321 and the second limiting rib 322 disposed on the fixed blade holder 320 and the fixed blade cover 330 together limit the fixed blade 310 to move in a limited moving space, so as to cooperate with the movement of the movable blade 230; two spring limiting grooves 329 are arranged on a bottom plate of the fixed cutter seat 320, the first spring 341 and the second spring 342 are respectively and fixedly arranged in the corresponding spring limiting grooves 329, the fixed cutter seat 320 and the fixed cutter 310 limit the first spring 341 and the second spring 342 in a limited space together, and the first spring 341 and the second spring 342 only provide upward blade part pretightening force for the fixed cutter 310 and cannot be separated from the fixed cutter module 300.

Still further, fig. 18 shows a structural schematic diagram of the knife holding cover at one viewing angle of the embodiment of the present invention, fig. 19 shows a structural schematic diagram of the knife holding cover at another viewing angle of the embodiment of the present invention, and fig. 20 shows a structural schematic diagram of the knife holding cover at still another viewing angle of the embodiment of the present invention. Referring to fig. 16, 18 to 20, in the embodiment of the present invention, the fixed blade cover 330 includes a top plate, a first end plate, a second end plate and a side plate, and the top plate, the first end plate, the second end plate and the side plate of the fixed blade cover 330 form a structure with an open bottom and one open side;

a first groove 323, a third guide rib 324 and a second groove 325 are formed on the side plate of the fixed cutter seat 320 in sequence along the extending direction;

a fixed cutter positioning body 350 which is contacted with the fixed cutter 310 is arranged on the inner side of the top plate of the fixed cutter cover 330, the fixed cutter positioning body 350, the top plate, the first end plate, the second end plate and the side plate of the fixed cutter cover 330 enclose a third guide groove 360, and the third guide groove 360 is matched with the third guide rib 324;

a first tongue 331 matching the first groove 323 is formed on the first end plate of the stationary blade cover 330, and a second tongue 332 matching the second groove 325 is formed on the second end plate of the stationary blade cover 330.

Still further, referring to fig. 16, 18 and 19, in the embodiment of the present invention, the first end plate and the first tongue 331 of the stationary blade seat 320 and the second end plate and the second tongue 332 of the stationary blade seat 320 are both fixedly disposed by bolts;

a third positioning post 333 is arranged on the first end plate of the fixed cutter cover 330, a third positioning hole 326 matched with the third positioning post 333 is arranged on the first end plate of the fixed cutter seat 320, a third guiding inclined surface is arranged on one side of the third positioning post 333 facing the bottom plate of the fixed cutter seat 320,

a fourth positioning column 334 is disposed on the second end plate of the fixed blade cover 330, a fourth positioning hole 327 matched with the fourth positioning column 334 is disposed on the second end plate of the fixed blade holder 320, and a fourth guiding inclined surface is disposed on a side of the fourth positioning column 334 facing the bottom plate of the fixed blade holder 320.

Still further, fig. 21 is a schematic external view showing an assembly of the stationary blade module and the printer core according to the embodiment of the present invention. Referring to fig. 15, 16 and 21, in the embodiment of the present invention, a sleeving structure 328 is disposed outside the bottom plate of the fixed blade holder 320, the sleeving structure 328 has a first opening sleeving portion and a second opening sleeving portion, and the first opening sleeving portion and the second opening sleeving portion are respectively sleeved on two ends of the paper winding shaft 130.

Still further, fig. 22 shows a schematic diagram of relative positions of the first cover plate and the framework body according to the embodiment of the invention. Referring to fig. 22, in the embodiment of the present invention, the portion of the second side of the frame body 210 opposite to the first motor 410 and the toggle member 420 is an open area, and the moving blade driving module 400 further includes a first cover plate 430, and the first cover plate 430 is disposed on the second side of the frame body 210 and covers the open area thereon, so as to fix the first motor 410 and the toggle member 420 in the frame body 210.

Still further, referring to fig. 6 to 9, in the embodiment of the present invention, the circuit board 510 is a flexible circuit board, and the circuit board 510 is divided into a first sub circuit board 511, a second sub circuit board 512 and a third sub circuit board 513;

the first sub circuit board 510 is arranged in the framework body 210 and below the moving tool post 220, and the photoelectric switch 520 is arranged on the first sub circuit board 511 and faces the moving tool post 220;

the second sub circuit board 512 is arranged on the fourth side of the framework body 210 and is attached to the side wall of the housing 240, the key film element 530 is arranged on the second sub circuit board 512 and faces the moving tool rest 220, and the trigger element 223 matched with the key film element 530 is arranged on the rear edge of the moving tool rest 220;

the second sub circuit board 512 and the third sub circuit board 513 are both connected to the first sub circuit board 511, and the first sub circuit board 511 is connected to the main control board through the third sub circuit board 513.

In the embodiment of the present invention, the first sub circuit board 511, the second sub circuit board 512, and the third sub circuit board 513 are integrated, that is, the circuit board 510 is an independent flexible circuit board, rather than being formed by splicing the first sub circuit board 511, the second sub circuit board 512, and the third sub circuit board 513.

Still further, referring to fig. 7, 12 and 13, in an embodiment of the present invention, a circuit board placement area 218 is recessed on a first side of the skeleton body 210, and the first sub circuit board 511 is adhesively disposed in the circuit board placement area 218;

a circuit board positioning area 219 is recessed on the fourth side of the frame 210, and the second sub-circuit board 512 is fixed on the circuit board positioning area 219 so that the key film element 530 and the trigger element 223 are disposed opposite to each other.

Still further, fig. 23 shows a schematic relative position between the second cover plate and the framework body according to the embodiment of the invention. Referring to fig. 23, in the embodiment of the present invention, the movable blade position detecting module further includes a second cover 540, the second cover 540 is disposed on the first side of the frame body 210 and covers the first sub circuit board 511, and a through hole 541 opposite to the photoelectric switch 520 is disposed on the second cover 540.

Further, referring to fig. 6, fig. 7-fig. 9, in the embodiment of the present invention, the third sub-circuit 513 is in a strip shape, a first end of the third sub-circuit 513 is connected to the first sub-circuit 511, and a second end of the third sub-circuit 513 is connected to the main control board through the connector 550;

the trigger element 223 is a silica gel column.

In the embodiment of the present invention, the connector 550 is a ZIF connector, and the first sub circuit board 511 is connected to the main control board through the third sub circuit 513 and the connector 550; the first motor 410 is connected with the main control board through a first signal line 440; the printer core 100 is connected to the main control board via a second signal line.

Still further, referring to fig. 6 and 7, in the embodiment of the present invention, a fourth guide rib 221 and a fifth guide rib 222 are provided on the sliding surface of the moving blade holder 220, and a fourth guide groove 215 and a fifth guide groove 216 are provided on the first side of the frame body 210. The fourth guide rib 221 is matched with the fourth guide groove 215, and the fifth guide rib 222 is matched with the fifth guide groove 216, so as to realize the sliding guide of the moving knife rest 220 on the framework body 210. In order to realize the fool-proof limit of the moving blade holder 220, the moving blade module 200 is provided with a corresponding forward stop position and a backward stop position, wherein the forward stop position is realized by a barrier strip 217 formed on the first side of the framework body 210, and the backward stop position is realized by a housing 240.

In the embodiment of the present invention, the movable blade 230 has two states of feeding in place and retracting in place. Wherein, the specific process of the in-place cutting feed comprises the following steps: the main control board controls the first motor 410 to rotate forward so that the moving blade carrier 220 drives the moving blade 230 to move forward, in the process of moving the moving blade carrier 220 forward, the state of the photoelectric switch 520 is changed from being shielded by the moving blade carrier 220 to being not shielded, at the moment, the photoelectric switch 520 outputs a moving blade feeding in-place detection signal, and the main control board controls the first motor 410 to stop rotating in response to the moving blade feeding in-place detection signal. At this time, the movable blade 230 is in the feeding in-place state, and the length of the movable blade 230 extending out of the housing 240 in the feeding in-place state reaches a predetermined length and cooperates with the fixed blade 310 in the fixed blade module 300 to cut the printed receipt. The specific process of tool withdrawal in place comprises the following steps: the main control board controls the first motor 410 to rotate reversely so that the moving blade carrier 220 drives the moving blade 230 to retreat, in the process that the moving blade carrier 220 retreats, the state of the key film element 530 is separated from the trigger element on the rear edge of the moving blade carrier 220 and is converted into contact with the trigger element, at the moment, the key film element 530 outputs a moving blade retreating in-place detection signal, and the main control board controls the first motor 410 to stop rotating in response to the moving blade retreating in-place detection signal. At this time, the movable blade 230 is in the retracted state, i.e. the movable blade 230 is retracted to a predetermined position in the movable blade module 200.

When the moving knife is fed in place, a safe distance is kept between the moving knife rest 220 and the barrier strip 217; when the moving knife moves back to the right position, a second safety distance is kept between the moving knife rest 220 and the cover 240, namely the sum of the thickness of the key film element main body and the thickness of the trigger element.

In practical application, the automatic cutter system formed by the modular movable cutter mechanism and the fixed cutter module 300 of the embodiment of the invention is arranged in a paper bin of a 2-inch automatic cutter thermal printer, the fixed cutter module 300 and a cover plate of the paper bin are detachably and fixedly arranged, and the movable cutter module 200 and corresponding mechanism parts in the paper bin are detachably and fixedly arranged.

Correspondingly, on the basis of the modular moving blade mechanism provided by the embodiment of the invention, the embodiment of the invention also provides a control method, and the control method is applied to a main control board and used for controlling the modular moving blade mechanism provided by the embodiment of the invention.

The control method of the modular moving knife mechanism provided by the embodiment of the invention comprises the following steps:

responding to a printing completion signal from the printer core, and outputting a first motor forward driving instruction, wherein the first motor forward driving instruction is used for realizing moving blade feeding;

responding to a moving blade feed in-place detection signal from a photoelectric switch, and stopping outputting a forward driving instruction of a first motor;

outputting a first motor reverse driving instruction after a preset time interval, wherein the first motor reverse driving instruction is used for realizing moving knife retracting;

and stopping outputting a reverse driving instruction of the first motor in response to a moving blade retracting in-place detection signal from the key film element.

In the embodiment of the invention, the main control board mainly has the following two functions:

firstly, controlling the printer core 100 to complete the printing action:

when printing is required, the main control board transmits a print signal and a print content signal to the printer core 100 through the second signal line, and the printer core 100 drives the second motor 120 to rotate to feed paper through the paper winding shaft 130 after receiving the print signal. In the process of feeding paper, the thermosensitive device of the print head 110 converts the print content signal transmitted by the main control board into a thermosensitive signal to form print content on the thermosensitive printing paper, thereby obtaining the receipt. After printing is completed, the printer core 100 transmits a printing completion signal to the main board through the second signal line, and the main control board controls the second motor 120 to stop rotating, thereby completing the entire printing action.

Secondly, controlling the automatic cutter system to cut the receipt strip:

the main control board outputs a first motor forward driving command to the first motor 410 through the first signal line 440 to control the feeding of the moving blade 230. When the moving blade 230 is fed in place, the circuit board 510 transmits the moving blade feeding in-place detection signal output by the photoelectric switch 520 to the main control board. After receiving the moving-blade-in-position detection signal, the main control board stops outputting the first motor forward driving command to stop the first motor 410. The movable knife 230 in the feeding-in-position state completes the cutting of the receipt strip through the cooperation with the fixed knife 310 in the fixed knife module 300.

After the cutting of the credential is completed, the main control board outputs a first motor reverse driving command to the first motor 410 through the first signal line 440, so as to control the moving blade 230 to retract. When the moving blade 230 retreats to the right position, the circuit board 510 transmits the moving blade retreating in-position detection signal outputted by the key membrane element 530 to the main control board. After receiving the moving blade retracting in-place detection signal, the main control board stops outputting the first motor reverse driving command to stop the first motor 410. At this point the moving blade 230 and moving blade holder 220 have retracted inside the moving blade module 200.

Specifically, when the movable blade 230 is in the retracting and in-position state, the photoelectric switch 520 outputs a low level signal, and the key membrane element 530 outputs a low level signal; when the movable knife 230 is in the cutting-in-place state, the photoelectric switch 520 outputs a high-level signal, and the key membrane element 530 outputs a high-level signal.

While one or more embodiments of the invention have been described, it will be appreciated by those skilled in the art that the invention can be embodied in many other forms without departing from the spirit or scope of the invention. Accordingly, the above-described embodiments are intended to be illustrative, not limiting, and many modifications and alterations may be apparent to those of ordinary skill in the art without departing from the spirit and scope of the invention, as defined by the following claims.

Claims

1. A modular moving knife mechanism is applied to a thermal printing component, the thermal printing component comprises a printer core and a main control board, and is characterized in that the moving knife mechanism comprises a moving knife module, a moving knife driving module and a moving knife position detection module;

2. The modular moving blade mechanism according to claim 1, wherein the moving blade module further comprises a housing, the skeleton body further has a fourth side opposite to the third side, and opposite first and second ends;

3. The modular moving blade mechanism according to claim 2, wherein a first positioning column is further disposed at the first end of the frame, a first positioning hole matched with the first positioning column is disposed at the first end of the housing, and a first guiding inclined plane is disposed on a side of the first positioning column facing the fourth side of the frame;

4. The modular moving blade mechanism according to claim 1, wherein a portion of the second side of the frame body, which is opposite to the first motor and the toggle member, is an open area, and the moving blade driving module further comprises a first cover plate disposed on the second side of the frame body and covering the open area, so as to fix the first motor and the toggle member in the frame body.

5. The modular moving blade mechanism according to claim 2, wherein the circuit board is a flexible circuit board, and the circuit board is divided into a first sub-circuit board, a second sub-circuit board and a third sub-circuit board;

the second sub circuit board and the third sub circuit board are both connected with the first sub circuit board, and the first sub circuit board is connected to the main control board through the third sub circuit board.

6. The modular moving blade mechanism according to claim 5, wherein a circuit board placing area is arranged on the first side of the framework body in a sunken way, and the first sub-circuit board is arranged in the circuit board placing area in an adhering way;

7. The modular moving blade mechanism according to claim 6, wherein the moving blade position detection module further comprises a second cover plate, the second cover plate is arranged on the first side of the framework body and covers the first sub circuit board, and a through hole opposite to the photoelectric switch is arranged on the second cover plate.

8. The modular moving blade mechanism according to claim 5, wherein said third sub-circuit is elongated, a first end of said third sub-circuit is connected to said first sub-circuit, and a second end of said third sub-circuit is connected to said main control board through a connector;

the trigger element is a silica gel column.

9. The control method of the modular moving blade mechanism according to any one of claims 1 to 8, applied to the main control board, wherein the control method comprises: