Cutter mechanism and printer

Abstract

The utility model discloses a cutter mechanism and a printer. The cutter mechanism comprises a body; the cutter assembly is arranged in the body, the cutter assembly comprises a first blade and an installation support, the first blade is arranged on the installation support, a guide groove is formed in the installation support, a first end face is further arranged in the guide groove, and the first end face faces the guide groove in the Y direction; the first gear is arranged in the body, the first gear comprises a first face, a guide column is arranged on the first face, the axis of the guide column is parallel to the axis of the first gear and does not coincide with the axis of the first gear, and the guide column is arranged in the guide groove in a penetrating mode; the first gear rotates around the axis of the first gear, and the guide column can abut against the first end face, so that the first blade moves from the interior of the body to the exterior of the body.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of printing technology, and particularly relates to a cutting mechanism and a printer. BACKGROUND

[0002] In the prior art, the cutting mechanism in the printer usually adopts a cam to drive the blade to move. The cam structure makes the structure of the cutting mechanism more complex, and long-time use of the cam will cause wear and tear, thus causing problems such as jamming, thereby affecting the service life of the cutting mechanism. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiments of the present application is to provide a cutting mechanism and a printer.

[0004] According to a first aspect of the embodiments of the present application, a cutting mechanism is provided, comprising:

[0005] a body;

[0006] a cutting assembly, the cutting assembly is arranged in the interior of the body, the cutting assembly comprises a first blade and a mounting bracket, the first blade is arranged on the mounting bracket, the mounting bracket is provided with a guide groove, and a first end face is further arranged in the guide groove, and the first end face faces the guide groove in the Y direction;

[0007] a first gear, the first gear is arranged in the interior of the body, the first gear comprises a first face, the first face is provided with a guide column, the axis of the guide column is parallel to and does not coincide with the axis of the first gear, and the guide column is arranged in the guide groove;

[0008] The first gear rotates around its own axis, the guide column can abut against the first end face, and the first blade can be moved from the interior of the body to the exterior of the body.

[0009] Optionally, the body comprises a first shell, the first shell is provided with a first sliding groove and a second sliding groove, and the first sliding groove and the first sliding groove are arranged at intervals along the Y direction;

[0010] The mounting bracket is provided with a first limiting block and a second limiting block, the first limiting block is arranged in the first sliding groove, the first limiting block can move along the Y direction relative to the first sliding groove, and the first limiting block is limited to move along the X direction relative to the first sliding groove, the second limiting block is arranged in the second sliding groove, the second limiting block can move along the Y direction relative to the second sliding groove, and the second limiting block is limited to move along the X direction relative to the second sliding groove.

[0011] Optionally, the cutter mechanism further comprises a fixing member, the fixing member is arranged on the first housing, and the cutter assembly is located between the first housing and the fixing member.

[0012] The fixing member comprises a first elastic sheet and a second elastic sheet, the first elastic sheet and the second elastic sheet are arranged in the X direction, the first elastic sheet abuts against the mounting bracket, and the second elastic sheet abuts against the mounting bracket.

[0013] Optionally, the cutter mechanism further comprises a driving assembly, the driving assembly comprises a motor, a worm and a second gear, the worm is connected with the output shaft of the motor;

[0014] The second gear comprises a first gear part and a second gear part, the first gear part and the second gear part are arranged in the Z direction, the worm is engaged with the first gear part, the second gear part is engaged with the first gear, and the motor can drive the second gear to rotate or stop rotating through the worm.

[0015] Optionally, the diameter of the first gear is greater than the diameter of the second gear part.

[0016] Optionally, the cutter mechanism further comprises a first housing and a second housing, the cutter assembly is arranged on the first housing, the driving assembly and the first gear are arranged on the second housing, and the first housing is buckled with the second housing.

[0017] Optionally, the cutter mechanism further comprises an electrical connector, the electrical connector is connected with the motor, and the electrical connector is used for receiving a signal from a printer, the signal being used for controlling the motor to rotate or stop rotating.

[0018] Optionally, the mounting bracket further comprises a second end face, the first end face and the second end face have a height difference in the Y direction;

[0019] The first gear rotates around its own axis in a first direction, the guide column can abut against the first end face, and the first blade can be moved from a first position to a second position by a first stroke;

[0020] The first gear rotates around its own axis in a second direction, the guide column can abut against the second end face, and the first blade can be moved from the first position to a third position by a second stroke;

[0021] The second position and the third position are both located outside the body, and the second position is different from the third position.

[0022] The first stroke and the second stroke are different.

[0023] The first direction is opposite to the second direction.

[0024] Optionally, the mounting bracket comprises a mounting member and a sliding block, the guide slot is formed in the mounting member, the sliding block is arranged in the guide slot, and the first end surface and the second end surface are both located on the sliding block.

[0025] The first gear rotates around its own axis in the first direction, and the guide column can abut against the third end surface to drive the sliding block to move in the X direction in the guide slot.

[0026] Optionally, the mounting bracket further comprises an elastic member, one end of the elastic member is connected with the sliding block, and the other end of the elastic member is connected with the mounting member, the sliding block moves in the X direction to compress the elastic member or the elastic member is released to drive the sliding block to move in the X direction.

[0027] Optionally, the elastic member is a torsion spring.

[0028] Optionally, the guide slot comprises a first region, a second region and a third region arranged in sequence in the X direction.

[0029] The sliding block comprises a first part and a second part, the first part is located between the first region and the second region, the second part is located between the second region and the third region, and the elastic member is arranged in the third region.

[0030] Wherein, the sliding block moves in the X direction to compress the elastic member, the first part gradually moves from the first region to the second region, and the second part gradually moves from the second region to the third region.

[0031] Optionally, the first blade comprises a cutting edge, the cutting edge is provided with a groove, and the height difference between the first end surface and the second end surface in the Y direction is greater than or equal to the depth of the groove.

[0032] According to a second aspect of the embodiment of the present application, a printer is provided, comprising the cutting knife mechanism.

[0033] Optionally, the printer further comprises:

[0034] A housing, and the cutting knife mechanism is arranged in the interior of the housing.

[0035] A cover, and the cover is movably connected with the housing, and the cover comprises an open state and a closed state.

[0036] A print head, and the print head is located below the cutting knife mechanism in the Z direction.

[0037] A rubber roller rotatably arranged on the cover;

[0038] A second blade arranged on the cover, the second blade is closer to the inner wall of the cover than the rubber roller;

[0039] In the closed state, a paper passing channel is formed between the rubber roller and the print head, the first blade and the second blade are arranged in the Y direction, and the first blade can move in the direction of the second blade in the Y direction to cut the printing paper.

[0040] Optionally, the printer further comprises a mainboard assembly arranged in the interior of the shell, the mainboard assembly is electrically connected with the driving assembly of the cutter mechanism, and the driving assembly can receive a signal of the mainboard assembly to drive the first blade to move

[0041] One technical effect of the embodiment of the present application is that by inserting the guide column into the guide groove, the guide column abuts against the first end face, and the first gear rotates around its own axis, so as to drive the first blade to move from the interior of the body to the exterior of the body to cut the small ticket, which has the advantages of simple structure, small space occupation, no jamming problem, and long service life.

[0042] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0043] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the application.

[0044] Figure 1 It is a structural schematic view of the first shell and the cutter assembly in the embodiment of the present application;

[0045] Figure 2 It is a structural schematic view of the first shell, the cutter assembly and the second blade in the embodiment of the present application;

[0046] Figure 3 It is a structural schematic view of the first shell, the cutter assembly and the second blade in the embodiment of the present application;

[0047] Figure 4 It is a structural schematic view of the cutter assembly in the embodiment of the present application;

[0048] Figure 5 It is a structural schematic view of the mounting member in the embodiment of the present application;

[0049] Figure 6 It is a structural schematic view of the cutter mechanism in the embodiment of the present application;

[0050] Figure 7 Structure diagram of the driving assembly, the first gear and the second shell in the embodiment of the application;

[0051] Figure 8 Structure diagram of the driving assembly, the first gear and the second shell in the embodiment of the application;

[0052] Figure 9 Diagram of the cutter assembly moving from the first position to the second position in the embodiment of the application;

[0053] Figure 10 Diagram of the cutter assembly moving from the first position to the third position in the embodiment of the application;

[0054] Figure 11 Structure diagram of the printer in the embodiment of the application.

[0055] Explanation of reference signs:

[0056] Cutter assembly 1; first blade 11; blade edge 111; recess 112; mounting bracket 12; mounting piece 121; guide groove 1211; first area 1211a; second area 1211b; third area 1211c; notch 1211d; fourth end surface 1212; sliding block 122; first end surface 1221; second end surface 1222; third end surface 1223; first part 1224; second part 1225; elastic piece 123; first limiting block 124; second limiting block 125;

[0057] First gear 2; first surface 21; guide column 22;

[0058] First shell 3; first sliding groove 31; second sliding groove 32;

[0059] Fixing piece 4; first fixing sheet 41; second fixing sheet 42; first elastic sheet 43; second elastic sheet 44;

[0060] Driving assembly 5; motor 51; worm 52; second gear 53; first gear part 531; second gear part 532;

[0061] Second shell 6;

[0062] Second blade 7;

[0063] Printer 8; machine shell 81; machine cover 82; rubber roller 83; print head 84; cutter mechanism 85;

[0064] First position a; second position b; third position c; fourth position d; fifth position e; first stroke H; second stroke L. DETAILED DESCRIPTION

[0065] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0066] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application or its application or use.

[0067] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0068] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0069] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0070] First, it should be noted that the X direction, Y direction, Z direction, first direction, and second direction mentioned in the embodiments of this application are referred to in the appendix. Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 The marked directions. Among them, the axes in the X direction, Y direction, and Z direction intersect each other.

[0071] like Figures 1-10 As shown, according to a first aspect of the embodiments of this application, a cutting mechanism 85 is provided, including a body, a cutting assembly 1, and a first gear 2; the cutting assembly 1 is disposed inside the body, and the cutting assembly 1 includes a first blade 11 and a mounting bracket 12. The first blade 11 is disposed on the mounting bracket 12, and the mounting bracket 12 has a guide groove 1211. A first end face 1221 is also provided in the guide groove 1211, and the first end face 1221 faces the guide groove 1211 in the Y direction; the first gear 2 is disposed inside the body, and the first gear 2 includes a first surface 21. A guide post 22 is provided on the first surface 21. The axis of the guide post 22 is parallel to and does not coincide with the axis of the first gear 2, and the guide post 22 passes through the guide groove 1211;

[0072] The first gear 2 rotates around its own axis, and the guide column 22 can abut against the first end face 1221, so as to move the first blade 11 from the inside of the body to the outside of the body.

[0073] The cutter mechanism 85 provided in the present application is mainly used in a printer 8, a code scanning and printing all-in-one machine, or other devices for cutting paper; for example, a printer 8 used for printing a small ticket in the catering industry, a printer 8 used for printing a small ticket in a supermarket, etc.; the cutter mechanism 85 in the present application is taken as an example for cutting a small ticket for illustration.

[0074] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 7 , the cutter mechanism 85 comprises a body, a cutter assembly 1 and a first gear 2; wherein the cutter assembly 1 and the first gear 2 are both arranged inside the body, the first gear 2 can rotate relative to its own axis inside the body, and the cutter assembly 1 can move in the Y direction relative to the body.

[0075] Further explanation, the cutter assembly 1 comprises a first blade 11 and a mounting bracket 12; wherein the first blade 11 is arranged on the mounting bracket 12, and the mounting bracket 12 provides a mounting position and a supporting action for the first blade 11; a guide groove 1211 is formed on the mounting bracket 12, and a first end face 1221 is further arranged in the guide groove 1211, and the first end face 1221 is inside the guide groove 1211 in the Y direction; wherein the first end face 1221 can be located on the side wall of the guide groove 1211, or on other components arranged inside the guide groove 1211.

[0076] As shown in Figure 7 , the first gear 2 comprises a first face 21, and a guide column 22 is arranged on the first face 21; the axis direction of the guide column 22 is the same as the Z direction, the axis direction of the first gear 2 is the same as the Z direction, the axis of the guide column 22 does not coincide with the axis of the first gear 2, in other words, there is a certain distance between the axis of the guide column 22 and the axis of the first gear 2, and the axis of the guide column 22 is parallel to the axis of the first gear 2; the guide column 22 is arranged in the guide groove 1211, in other words, the guide column 22 is inserted into the guide groove 1211; when the first gear 2 rotates around its own axis, the guide column 22 can abut against the first end face 1221, so as to drive the mounting bracket 12 to move in the Y direction, so as to drive the first blade 11 to move in the Y direction, so as to move the first blade 11 from the inside of the body to the outside of the body, so as to cut the small ticket.

[0077] The cutter mechanism 85 of the present application is inserted into the guide groove 1211 through the guide column 22, the guide column 22 abuts against the first end face 1221, the first gear 2 rotates around its own axis, and the first blade 11 can be driven to move from the inside of the body to the outside of the body to cut the receipt, which has simple structure, occupies small space, and has long service life without jamming problem.

[0078] In an alternative embodiment, the body comprises a first housing 3, the first housing 3 is provided with a first sliding groove 31 and a second sliding groove 32, the first sliding groove 31 and the first sliding groove 31 are arranged along the Y direction;

[0079] The mounting bracket 12 is provided with a first limiting block 124 and a second limiting block 125, the first limiting block 124 is arranged on the first sliding groove 31, the first limiting block 124 can move along the Y direction relative to the first sliding groove 31, and the first limiting block 124 is limited to move along the X direction relative to the first sliding groove 31, the second limiting block 125 is arranged on the second sliding groove 32, the second limiting block 125 can move along the Y direction relative to the second sliding groove 32, and the second limiting block 125 is limited to move along the X direction relative to the second sliding groove 32.

[0080] As shown in Figure 1 and Figure 6 The cutter mechanism 85 further comprises a first housing 3, the first housing 3 is provided with a first sliding groove 31 and a second sliding groove 32, the first sliding groove 31 and the second sliding groove 32 are arranged along the Y direction, the length direction of the first sliding groove 31 is the same as the Y direction, the length direction of the second sliding groove 32 is the same as the Y direction, the width direction of the first sliding groove 31 is the same as the X direction, and the width direction of the second sliding groove 32 is the same as the X direction; as shown in Figure 4 and Figure 5 The mounting bracket 12 is provided with a first limiting block 124 and a second limiting block 125, the first limiting block 124 and the second limiting block 125 are arranged along the Y direction. The first limiting block 124 is arranged on the first sliding groove 31, and the second limiting block 125 is arranged on the second sliding groove 32; when the cutter assembly 1 moves from the first position a to the second position b or the third position c, the first limiting block 124 moves along the Y direction relative to the first sliding groove 31, and the second limiting block 125 moves along the Y direction relative to the second sliding groove 32; the first sliding groove 31 and the second sliding groove 32 can provide a guide function for the movement of the cutter assembly 1 along the Y direction, and can limit the movement of the cutter assembly 1 along the X direction.

[0081] In an alternative embodiment, the cutter mechanism 85 further comprises a fixing member 4, the fixing member 4 is arranged on the first housing 3, and the cutter assembly 1 is located between the first housing 3 and the fixing member 4;

[0082] The fixing member 4 comprises a first elastic piece 43 and a second elastic piece 44, the first elastic piece 43 and the second elastic piece 44 are arranged along the X direction, the first elastic piece 43 abuts against the mounting bracket 12, and the second elastic piece 44 abuts against the mounting bracket 12.

[0083] As shown in Figure 2 and Figure 3 The cutter mechanism 85 further comprises a fixing member 4 arranged on the first housing 3, and the fixing member 4 comprises a first fixing piece 41 and a second fixing piece 42 arranged along the X direction, the first fixing piece 41 is connected with the first housing 3, and the second fixing piece 42 is connected with the first housing 3; the fixing member 4 further comprises a first elastic piece 43 and a second elastic piece 44, the first elastic piece 43 and the second elastic piece 44 are arranged between the first fixing piece 41 and the second fixing piece 42 along the X direction; the cutter assembly 1 is arranged between the first housing 3 and the fixing member 4 along the Z direction, the first elastic piece 43 abuts against the mounting bracket 12, the second elastic piece 44 abuts against the mounting bracket 12, and the first elastic piece 43 and the second elastic piece 44 can press the mounting bracket 12 along the Z direction, but the cutter assembly 1 can still move along the Y direction.

[0084] In an alternative embodiment, the cutter mechanism 85 further comprises a driving assembly 5, the driving assembly 5 comprises a motor 51, a worm 52 and a second gear 53, the worm 52 is connected with the output shaft of the motor 51;

[0085] The second gear 53 comprises a first gear part 531 and a second gear part 532, the first gear part 531 and the second gear part 532 are arranged along the Z direction, the worm 52 is engaged with the first gear part 531, the second gear part 532 is engaged with the first gear 2, and the motor 51 can drive the second gear 53 to rotate or stop rotating through the worm 52.

[0086] As shown in Figure 7 and Figure 8 The cutter mechanism 85 further comprises a driving assembly 5, the driving assembly 5 is used for driving the first gear 2 to rotate around the axis thereof.

[0087] Further, the driving assembly 5 comprises a motor 51, a worm 52 and a second gear 53; the output shaft of the motor 51 is connected with the worm 52, and the motor 51 can drive the worm 52 to rotate around its axis; the second gear 53 comprises a first gear part 531 and a second gear part 532, which are integrally arranged, and the first gear part 531 and the second gear part 532 are arranged adjacent to each other along the Z direction; the worm 52 is engaged with the first gear part 531, and the second gear part 532 is engaged with the first gear 2; in particular, the motor 51 drives the worm 52 to rotate around its axis, and the worm 52 drives the first gear part 531 to rotate around its axis; since the first gear part 531 and the second gear part 532 are integrally arranged, the second gear part 532 also rotates around its axis, thereby driving the first gear 2 to rotate around its axis.

[0088] In an alternative embodiment, the diameter of the first gear 2 is greater than the diameter of the second gear part 532; thereby the output speed of the first gear 2 can be reduced and the torque can be increased.

[0089] In an alternative embodiment, the cutter mechanism 85 further comprises a first housing 3 and a second housing 6; the cutter assembly 1 is arranged in the first housing 3, and the driving assembly 5 and the first gear 2 are arranged in the second housing 6; the first housing 3 is buckled with the second housing 6; when installing, the cutter assembly 1 can be installed on the first housing 3 first, and then the driving assembly 5 and the first gear 2 are installed on the second housing 6; finally, the first housing 3 and the second housing 6 are buckled, and the cutter assembly 1 and the driving assembly 5 are located between the first housing 3 and the second housing 6; in this embodiment, the installation is relatively convenient.

[0090] In an alternative embodiment, the cutter mechanism 85 further comprises an electrical connector, which is connected with the motor 51 and used for receiving signals from the printer 8, the signals being used for controlling the motor 51 to rotate or stop rotating; wherein the electrical connector is electrically connected with the mainboard assembly of the printer 8, and the mainboard assembly sends control signals to the motor 51.

[0091] In an alternative embodiment, the guiding groove 1211 further comprises a second end face 1222, and the first end face 1221 and the second end face 1222 have a height difference in the Y direction;

[0092] The first gear 2 rotates around its own axis in a first direction, the guide column 22 can abut against the first end face 1221, so that the first blade 11 can be moved from a first position a to a second position b by a first stroke H; and / or, the first gear 2 rotates around its own axis in a second direction, the guide column 22 can abut against the second end face 1222, so that the first blade 11 can be moved from the first position a to a third position c by a second stroke L;

[0093] The second position b and the third position c are both located outside the body, and the second position b is different from the third position c;

[0094] The first stroke H is different from the second stroke L;

[0095] The first direction is opposite to the second direction.

[0096] As shown in Figure 2 and Figure 4 The second end face 1222 is further arranged in the guide groove 1211 and faces the inside of the guide groove 1211 in the Y direction; the first end face 1221 and the second end face 1222 are sequentially arranged in the X direction, and both are located in the guide groove 1211; the first end face 1221 and the second end face 1222 have a height difference in the Y direction, in other words, the first end face 1221 and the second end face 1222 are not flush in the Y direction, so the first end face 1221 and the second end face 1222 are connected by a third end face 1223. The second end face 1222 can be located on the side wall of the guide groove 1211 or other components arranged inside the guide groove 1211.

[0097] Further, when the first gear 2 rotates around its own axis in the first direction or the second direction, the guide column 22 can drive the mounting bracket 12 to move in the Y direction, thereby driving the first blade 11 to move in the Y direction; since the first end face 1221 and the second end face 1222 have a height difference, when the first gear 2 rotates around its own axis in the first direction or the second direction, the moving distance of the cutter assembly 1 is different.

[0098] In Figure 9Taking the first gear 2 as an example, when the first gear 2 rotates around its own axis in the first direction, the guide post 22 is located in the guide groove 1211 and is in the fourth position d. The cutter assembly 1 is in the first position a. When the first gear 2 starts to rotate around its own axis in the first direction, the guide post 22 gradually comes into contact with the first end face 1221. The guide post 22 gradually rotates to the fifth position e. Under the action of the guide post 22, the cutter assembly 1 moves from the first position a to the second position b. The distance that the cutter assembly 1 moves from the first position a to the second position b is the first stroke H. In other words, the first blade 11 moves from the inside of the body to the outside of the body.

[0099] by Figure 10 Taking the first gear 2 as an example, when the first gear 2 rotates around its own axis in the second direction, when the guide post 22 is located in the guide groove 1211, the guide post 22 is in the fourth position d, and the cutter assembly 1 is in the first position a. When the first gear 2 starts to rotate around its own axis in the second direction, the guide post 22 can abut against the second end face 1222. The guide post 22 gradually moves to the fifth position e. Under the action of the guide post 22, the cutter assembly 1 moves from the first position a to the third position c. The distance that the cutter assembly 1 moves from the first position a to the third position c is the second stroke L. The first blade 11 moves from the inside of the body to the outside of the body.

[0100] Therefore, since the first end face 1221 and the second end face 1222 have a height difference in the Y direction, the first stroke H is different from the second stroke L. When the first stroke H is less than the second stroke L, there are three cases: First, by rotating the first gear 2 around the first direction or the second direction, the cutter assembly 1 can partially or completely cut the ticket; Second, by rotating the first gear 2 around the first direction or the second direction, the cutter assembly 1 can partially cut the ticket; Third, by rotating the first gear 2 around the first direction or the second direction, the cutter assembly 1 can completely cut the ticket.

[0101] In one specific embodiment, when the first blade 11 needs to move from the second position b to the first position a, the first gear 2 rotates around its own axis in a second direction. Under the action of the guide post 22, the cutter assembly 1 moves from the second position b to the first position a. The distance the cutter assembly 1 moves from the second position b to the first position a is the first stroke H, meaning the first blade 11 moves from the outside of the body to the inside of the body. When the first blade 11 needs to move from the third position c to the first position a, the first gear 2 rotates around its own axis in a first direction. Under the action of the guide post 22, the cutter assembly 1 moves from the third position c to the first position a. The distance the cutter assembly 1 moves from the third position c to the first position a is the first stroke H, meaning the first blade 11 moves from the outside of the body to the inside of the body.

[0102] In another specific embodiment, the mounting bracket 12 includes a mounting member 121 and a slider 122. The guide groove 1211 is formed in the mounting member 121, and the slider 122 is disposed in the guide groove 1211. The first end face 1221 and the second end face 1222 are both located on the slider 122, and the first end face 1221 and the second end face 1222 are connected by a third end face 1223.

[0103] The first gear 2 rotates about its own axis in a first direction, and the guide post 22 can abut against the third end face 1223 to drive the slider 122 to move in the X direction within the guide groove 1211.

[0104] like Figure 2 and Figure 4 As shown, the mounting bracket 12 includes a mounting member 121 and a slider 122. A guide groove 1211 is formed on the mounting member 121, and the slider 122 is disposed in the guide groove 1211. The interior of the guide groove 1211 includes a fourth end face 1212, a first end face 1221 and a second end face 1222 located on the slider 122. The fourth end face 1212 faces the first end face 1221 and the second end face 1222 in the Y direction, and the slider 122 can move in the X direction. Specifically, when the first gear 2 rotates around its own axis in the first direction, the guide post 22 rotates from the fourth position d to the fifth position e, and then from the fifth position e to the fourth position d. During this process, the guide post 22 can abut against the third end face 1223, thereby driving the slider 122 to move in the X direction within the guide groove 1211. Therefore, it can prevent the first gear 2 from being blocked by the slider 122 during its rotation in the first direction and thus from being unable to return to the fourth position d. In this embodiment, the first gear 2 can always rotate in the same direction, which enables the drive cutter assembly 1 to move from the first position a to the second position b and back from the second position b to the first position a without changing the rotation direction of the first gear 2.

[0105] The first blade 11 is made of metal, while the mounting part 121 and the slider 122 are made of plastic. Compared to directly opening the guide groove 1211 and setting the slider 122 on the first blade 11, opening the guide groove 1211 and setting the slider 122 on the mounting part 121 is less difficult to install and less expensive to manufacture.

[0106] In an optional embodiment, the mounting bracket 12 further includes an elastic element 123, one end of which is connected to the slider 122 and the other end of which is connected to the mounting member 121. The slider 122 moves along the X direction to compress the elastic element 123 or the elastic element 123 releases to drive the slider 122 to move along the X direction.

[0107] like Figure 2 and Figure 4 As shown, the mounting bracket 12 also includes an elastic element 123. One end of the elastic element 123 is connected to the slider 122, and the other end of the elastic element 123 is connected to the mounting member 121. Specifically, when the first gear 2 rotates in the first direction, when the guide post 22 moves from the fifth position e to the fourth position d, the guide post 22 abuts against the third end face 1223 to drive the slider 122 to move in the X direction. The slider 122 will squeeze the elastic element 123. When the guide post 22 rotates to the point where it no longer abuts against the third end face 1223, the slider 122 will reset under the action of the elastic force of the elastic element 123.

[0108] In one specific embodiment, the elastic element 123 is a torsion spring; wherein, the torsion spring has a small volume and weight, and the mounting member 121 has a small volume, so the space required for the torsion spring to be installed on the mounting member 121 is small, thereby making the structure of the mounting bracket 12 more compact.

[0109] In another specific embodiment, the elastic element 123 may also be a helical spring.

[0110] In one optional embodiment, the guide groove 1211 includes a first region 1211a, a second region 1211b, and a third region 1211c arranged sequentially along the X direction;

[0111] The slider 122 includes a first part 1224 and a second part 1225. The first part 1224 is movable in the first region 1211a and the second region 1211b, and the second part 1225 is movable in the second region 1211b and the third region 1211c. The elastic member 123 is disposed in the third region 1211c.

[0112] The sliding block 122 extrudes the elastic member 123 along the X direction, the first part 1224 gradually moves from the first area 1211a to the second area 1211b, and the second part 1225 gradually moves from the second area 1211b to the third area 1211c.

[0113] As shown in Figure 4 The sliding block 122 includes a first part 1224 and a second part 1225, which are integrally arranged; the first end surface 1221 is located in the first part 1224, and the second end surface 1222 is located in the second part 1225.

[0114] As shown in Figure 5 The guide groove 1211 includes a first area 1211a, a second area 1211b, and a third area 1211c; the first area 1211a, the second area 1211b, and the third area 1211c are sequentially arranged in the X direction, and the first area 1211a, the second area 1211b, and the third area 1211c are sequentially communicated; the guide column 22 is arranged in the second area 1211b.

[0115] Further, the first part 1224 is movable in the first area 1211a and the second area 1211b, and the second part 1225 is movable in the second area 1211b and the third area 1211c; when the sliding block 122 moves along the X direction, the elastic member 123 is extruded, the first part 1224 gradually moves from the first area 1211a to the second area 1211b, but the first part 1224 will not completely separate from the first area 1211a, the first area 1211a can provide support and guide for the first part 1224 to avoid the sliding block 122 from being unable to reset under the action of the elastic member 123, the second part 1225 gradually moves from the second area 1211b to the third area 1211c and extrudes the elastic member 123 located in the third area 1211c, and the second part 1225 will not completely separate from the second area 1211b, the third area 1211c and the second area 1211b have a gap 1211d, the gap 1211d can provide support and guide for the second part 1225 to facilitate the sliding block 122 to reset under the action of the elastic member 123.

[0116] In an optional embodiment, the first blade 11 includes a blade edge 111, the blade edge 111 is provided with a groove 112, and the height difference between the first end surface 1221 and the second end surface 1222 in the Y direction is greater than or equal to the depth of the groove 112.

[0117] As shown in Figure 4As shown, the first blade 11 includes a blade edge 111, which is a part for cutting the receipt; a groove 112 is formed on the blade edge 111, the depth direction of the groove 112 is the same as the moving direction of the cutter assembly 1, that is, the depth direction of the groove 112 is the same as the Y direction; the first end surface 1221 and the second end surface 1222 have a height difference in the Y direction, and the height difference is greater than or equal to the depth of the groove 112; specifically, the distance difference between the first stroke H and the second stroke L, that is, the height difference of the first end surface 1221 and the second end surface 1222 in the Y direction, when the height difference is greater than the depth of the groove 112, if the first gear 2 rotates around its own axis in the first direction, the cutter assembly 1 partially cuts the receipt, and the position of the receipt which is not cut is the position of the groove 112, if the first gear 2 rotates around its own axis in the second direction, the cutter assembly 1 needs to make the height difference greater than the depth of the groove 112 to completely cut the receipt.

[0118] According to a second aspect of the embodiments of the present application, a printer 8 is provided, which includes the cutter mechanism 85 described above.

[0119] In an optional implementation, the printer 8 further includes a housing 81, a cover 82, a print head 84, a rubber roller 83 and a second blade 7; the cutter mechanism 85 is arranged inside the housing 81; the cover 82 is movably connected with the housing 81, and the cover 82 includes an open state and a closed state; the print head 84 is located below the cutter mechanism 85 in the Z direction; the rubber roller 83 is rotatably arranged on the cover 82; the second blade 7 is arranged on the cover 82, and the second blade 7 is closer to the inner wall of the cover 82 than the rubber roller 83.

[0120] In the closed state, a paper feeding channel is formed between the rubber roller 83 and the print head 84, and the first blade 11 and the second blade 7 are arranged in the Y direction; the first blade 11 can move in the direction of the second blade 7 in the Y direction to cut the printing paper.

[0121] As shown, Figure 11 The printer 8 includes a housing 81, a cover 82, a print head 84, a rubber roller 83, a second blade 7 and a cutter assembly 1; wherein the housing 81 is internally provided with a cavity for placing the printing paper; the cutter mechanism 85 and the print head 84 are arranged inside the housing 81, and in the Z direction, the cutter mechanism 85 is located above the print head 84; the cover 82 is movably connected with the housing 81, that is, the cover 82 can rotate relative to the housing 81, and the cover 82 includes a closed state and an open state; the rubber roller 83 is rotatably arranged on the cover 82, and the first blade 11 is arranged on the cover 82, and the first blade 11 is closer to the inner wall of the cover 82 than the rubber roller 83.

[0122] In the closed state, the rubber roller 83 and the print head 84 form a paper running channel, which is in communication with the cavity. The first blade 11 and the second blade 7 of the cutter mechanism 85 are oppositely arranged in the Y direction. The printed paper is located between the first blade 11 and the second blade 7. When the receipt printing is completed, the motor 51 drives the first blade 11 to move towards the second blade 7 in the Y direction. The first blade 11 and the second blade 7 jointly cut the printed receipt.

[0123] In an alternative embodiment, the printer 8 further comprises a mainboard assembly arranged in the interior of the casing 81. The mainboard assembly is electrically connected with the driving assembly 5 of the cutter mechanism 85. The driving assembly 5 can receive the signal of the mainboard assembly to drive the first blade 11 to move. The mainboard assembly sends the instruction to the motor 51 of the driving assembly 5. The motor 51 drives the first blade 11 to move to cut the receipt by the first blade 11 and the second blade 7.

[0124] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, but not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A cutter mechanism characterized by, The utility model relates to a cutting mechanism, including: A body; A cutting knife assembly is arranged in the interior of the body, the cutting knife assembly includes a first blade and a mounting bracket, the first blade is arranged in the mounting bracket, the mounting bracket is provided with a guide groove, and a first end face is further arranged in the guide groove, and the first end face is directed to the guide groove in the Y direction; A first gear is arranged in the interior of the body, the first gear includes a first surface, the first surface is provided with a guide column, the axis of the guide column is parallel to the axis of the first gear and does not coincide, and the guide column is arranged in the guide groove; Wherein, the first gear rotates around its own axis, the guide column can abut with the first end face, the first blade moves from the interior of the body to the outside of the body.

2. The cutter mechanism of claim 1, wherein The body includes a first shell, the first shell is provided with a first sliding groove and a second sliding groove, and the first sliding groove and the first sliding groove are arranged along the Y direction and are spaced apart; The mounting bracket is provided with a first limiting block and a second limiting block, the first limiting block is arranged in the first sliding groove, the first limiting block can move along the Y direction relative to the first sliding groove, and the first limiting block is limited to move along the X direction relative to the first sliding groove, the second limiting block is arranged in the second sliding groove, the second limiting block can move along the Y direction relative to the second sliding groove, and the second limiting block is limited to move along the X direction relative to the second sliding groove.

3. The cutter mechanism of claim 2, wherein, The cutting mechanism further includes a fixing piece, the fixing piece is arranged in the first shell, and the cutting knife assembly is located between the first shell and the fixing piece; The fixing piece includes a first elastic sheet and a second elastic sheet, the first elastic sheet and the second elastic sheet are arranged along the X direction and are spaced apart, the first elastic sheet abuts with the mounting bracket, and the second elastic sheet abuts with the mounting bracket.

4. The cutter mechanism of claim 1, wherein The cutting mechanism further includes a driving assembly, the driving assembly includes a motor, a worm and a second gear, and the worm is connected with the output shaft of the motor; The second gear includes a first gear part and a second gear part, the first gear part and the second gear part are arranged along the Z direction, the worm is engaged with the first gear part, the second gear part is engaged with the first gear, and the motor can drive the second gear to rotate or stop rotating through the worm.

5. The cutter mechanism of claim 4, wherein, The diameter of the first gear is greater than the diameter of the second gear part.

6. The cutter mechanism of claim 5, wherein, The cutting mechanism further includes a first shell and a second shell, the cutting knife assembly is arranged in the first shell, the driving assembly and the first gear are arranged in the second shell, and the first shell is buckled with the second shell.

7. The cutter mechanism of claim 4, wherein, The cutting mechanism further includes an electric connector, the electric connector is connected with the motor, and the electric connector is used for receiving a signal from a printer, and the signal is used for controlling the motor to rotate or stop rotating.

8. The cutter mechanism of claim 1, wherein The mounting bracket further includes a second end face, and the first end face and the second end face have a height difference in the Y direction; The first gear rotates around its own axis in a first direction, the guide column can abut against the first end face, and the first blade can be moved from a first position to a second position by a first stroke; The first gear rotates around its own axis in a second direction, the guide column can abut against the second end face, and the first blade can be moved from the first position to a third position by a second stroke; The second position and the third position are both located outside the body, and the second position is different from the third position; The first stroke and the second stroke are different; The first direction and the second direction are opposite.

9. The cutter mechanism of claim 8, wherein, The mounting bracket comprises a mounting member and a sliding block, the guide slot is formed in the mounting member, the sliding block is arranged in the guide slot, the first end face and the second end face are both located on the sliding block, and the first end face and the second end face are connected by a third end face; The first gear rotates around its own axis in a first direction, the guide column can abut against the third end face, and the sliding block is driven to move in the X direction in the guide slot.

10. The cutter mechanism of claim 9, wherein, The mounting bracket further comprises a resilient member, one end of the resilient member is connected with the sliding block, the other end of the resilient member is connected with the mounting member, and the sliding block is driven to move in the X direction by extruding the resilient member or releasing the resilient member.

11. The cutter mechanism of claim 10, wherein, The resilient member is a torsion spring.

12. The cutter mechanism of claim 9, wherein, The guide slot comprises a first region, a second region and a third region arranged in sequence in the X direction; The sliding block comprises a first part and a second part, the first part is located in the first region and the second region, the second part is located in the second region and the third region, and the resilient member is arranged in the third region; The sliding block moves in the X direction to extrude the resilient member, the first part gradually moves from the first region to the second region, and the second part gradually moves from the second region to the third region.

13. The cutter mechanism of claim 8, wherein, The first blade comprises a blade edge, a groove is arranged on the blade edge, and the height difference between the first end face and the second end face in the Y direction is greater than or equal to the depth of the groove.

14. A printer characterized by comprising: The cutting knife mechanism comprises the cutting knife mechanism according to any one of claims 1-13.

15. The printer of claim 14, wherein, The printer further comprises: A housing, and the cutting knife mechanism is arranged in the interior of the housing; A cover, and the cover is movably connected with the housing, and the cover comprises an open state and a closed state; A print head, and the print head is located below the cutting knife mechanism in the Z direction; A rubber roller, and the rubber roller is rotatably arranged on the cover; A second blade, and the second blade is arranged on the cover, and the second blade is closer to the inner wall of the cover than the rubber roller; In the closed state, a paper passing channel is formed between the rubber roller and the print head, the first blade and the second blade are arranged in the Y direction, and the first blade can be moved in the direction of the second blade in the Y direction to cut the printing paper.

16. The printer of claim 15, wherein, The printer further comprises a mainboard assembly arranged in the interior of the casing, the mainboard assembly is electrically connected with the driving assembly of the cutter mechanism, and the driving assembly can receive signals of the mainboard assembly to drive the first blade to move.

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