A printer core and a printer

Abstract

The present application provides a kind of printer core, including machine core support, moving knife upper cover, moving knife assembly, fixed knife seat, fixed blade, the installation site is provided above the machine core support;The moving knife upper cover is set on the machine core support;The moving knife assembly is set on the installation site, and between the machine core support and moving knife upper cover;The fixed knife seat is set side by side relative to the machine core support;The fixed blade is set on fixed knife seat, and the middle part of the fixed blade is upwardly convex, and the fixed blade is set relative to the moving knife structure;The present application also provides a kind of printer, adopts printer core configuration, the printer core of the present application can reduce part of parts by directly installing moving knife structure on machine core support, reduces the cost of parts and assembly cost, furthermore, the middle part of fixed blade is upwardly convex, and better paper cutting effect is realized.

Description

Technical Field

[0001] This invention relates to the technical field of printers, and in particular to a printer core and a printer. Background Technology

[0002] After printing, current printers cut the paper using a cutting assembly. One type of existing cutting assembly is a sliding structure, which uses a drive motor to move the moving blade and interact with the stationary blade to achieve a half or full cut.

[0003] Most existing sliding-type cutter assemblies integrate the drive motor and moving blade into a single housing, which is then directly mounted on the machine support. This structure may have the following disadvantages: First, this method results in too many parts, leading to excessively high component and assembly costs. Second, a support base is provided between the cutter assembly and the core support to avoid components such as bolt heads or screw heads; Third, the cutting assembly is raised, increasing the distance between the cutter and the print head, resulting in a larger blank space after the paper is cut, causing paper waste.

[0004] In view of this, the inventor has specifically designed a printer core and a printer, and this invention arises from this. Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this invention is to provide a printing mechanism that, by directly mounting the moving blade assembly onto the mechanism support, reduces the number of parts, lowers part costs and assembly costs, and overcomes the shortcomings of the current sliding cutter assembly structure.

[0006] A printer core provided by the present invention comprises: A movement support, wherein a mounting position is provided on the upper part of the movement support; A movable blade cover is disposed on the movement support; A moving blade assembly is disposed on the mounting position and located between the movement support and the moving blade cover; A fixed tool holder, which is arranged side by side with respect to the movement support; A fixed blade is disposed on a fixed blade holder, and the middle part of the fixed blade protrudes upward. The fixed blade is disposed relative to the moving blade assembly. The moving blade assembly includes: A movable blade is disposed within the mounting position and is slidably connected to the mechanism support.

[0007] The printer core of the present invention reduces some parts and lowers the cost of parts and assembly by directly mounting the moving blade assembly on the core support. At the same time, it lifts the middle of the fixed blade upward to achieve a better paper cutting effect.

[0008] In some embodiments of the present invention, a gap is formed between the mechanism support and the moving blade cover that communicates with the mounting position so that the movable blade can pass through.

[0009] In some embodiments of the present invention, the movement support includes: Main body; A first extension portion is provided on a long side of the main body portion; The second extension is provided in two parts, and is located on both sides of the short side of the main body and perpendicular to the two ends of the first extension. The first extension and the two second extensions form the mounting position.

[0010] In some embodiments of the present invention, the moving blade assembly further includes: A limiting component, wherein the limiting component is used to limit the forward and backward movement of the movable blade; A positioning element, wherein the positioning element is disposed on the movable blade; A driving device is disposed at the mounting position and located on the mechanism support, for driving the movable blade to move repeatedly.

[0011] In some embodiments of the present invention, the limiting component includes: A lower fixing plate is disposed above the movement support and located within the mounting position; A spring clip, wherein one long side of the spring clip is disposed on the lower fixing plate, and the other side is suspended; A guide step is provided below the positioning component, and a guide groove is provided on the lower fixing plate to cooperate with the guide step.

[0012] In some embodiments of the present invention, the driving device includes: A first drive motor is mounted on the upper cover of the moving blade. A worm gear, wherein the worm gear is disposed at the output end of the first drive motor and is driven by the first drive motor; A first gear, which meshes with the worm and is used to drive the movable blade; A drive rod, one end of which is mounted on the first gear and the other end of which extends to the movable blade.

[0013] The first drive motor drives the worm to rotate, the worm drives the first gear and the drive rod to rotate, and the drive rod drives the movable blade to move. The drive rod is set perpendicular to the first gear, and there is a distance between its central axis and the central axis of the first gear.

[0014] In some embodiments of the present invention, the moving knife cover includes a horizontal portion for covering the upper part of the movement support and a front end portion integrally formed with the horizontal portion. The front end portion is provided with third locking steps on both sides, the horizontal portion is provided with locking steps on both sides, the movement support is provided with a first locking groove that cooperates with the third locking steps, the moving knife cover is installed on the movement support, and the two locking steps are located inside the movement support.

[0015] In some embodiments of the present invention, the front end is disposed relative to the first extension, and the gap is formed between the lower end and the movement support; a fourth locking step is also provided on both sides of the horizontal part, and a second locking groove that cooperates with the fourth locking step is provided on the second extension.

[0016] In some embodiments of the present invention, the mechanism support is further provided with a limiting step for pressing down the end of the movable blade.

[0017] In some embodiments of the present invention, the movement support is a plastic part, integrally molded from plastic material, and the moving blade cover is a sheet metal part, integrally stamped.

[0018] In some embodiments of the present invention, a first support is provided on the upper end face of the fixed blade holder; the fixed blade is supported by the first support to lift the middle part of the fixed blade; a first inclined surface is provided on the upper end face of the first support, and the height of the first inclined surface gradually decreases along the short side of the fixed blade from the cutting edge of the fixed blade to the rear.

[0019] In some embodiments of the present invention, a second support is provided above the fixed tool holder and on both sides of the first support, the height of the first support being higher than the height of the second support; a second inclined surface is provided on the upper end surface of the second support, and the inclination angle is consistent with the first inclination angle.

[0020] In some embodiments of the present invention, the upper end face of the second support base is further provided with a second positioning post for positioning the fixed blade, and the fixed blade is provided with a first positioning hole that cooperates with the second positioning post. The fixed blade is locked onto the positioning base by bolts.

[0021] In some embodiments of the present invention, a third support is provided above the fixed tool holder and on both sides of the first support, the third being located between the first and second support. The heights of the first, third, and second support decrease sequentially; or, the heights of the first and third support are the same, and both are higher than the height of the second support, with a protrusion on the upper surface of the first support. The third support has an internally threaded hole, and a bolt passes through it to lock the fixed tool in place.

[0022] In some embodiments of the present invention, the printer core further includes: A rotating shaft is mounted on the movement support.

[0023] In some embodiments of the present invention, the printer core further includes: A gear cover, the gear cover being disposed on the movement support; The gear cover abuts against one end of the rotating shaft to restrict its movement along the central axis; the rotating shaft includes a rotating part and a mounting part disposed at one end of the rotating part, the outer diameter of the mounting part being smaller than the outer diameter of the main body part, and the movement support is provided with mounting holes for cooperating with the mounting part.

[0024] In some embodiments of the present invention, the end of the rotating part without the mounting part abuts against the gear cover, that is, the mounting part is located at the end of the rotating part away from the gear cover.

[0025] In some embodiments of the present invention, two first buckles are arranged side by side below the gear cover, and at least one second buckle is arranged above it. The movement support is provided with a first groove that cooperates with the first buckles, and also with a second groove that cooperates with the second buckles. The side wall of the gear cover is also provided with a third buckle, and the movement support is provided with a third groove that cooperates with the third buckle.

[0026] In some embodiments of the present invention, an annular inclined surface is provided at the end of the mounting portion away from the rotating portion.

[0027] In some embodiments of the present invention, the movement support is further provided with a first through hole for the rotating shaft to pass through.

[0028] In some embodiments of the present invention, the printer mechanism further includes a first gear set disposed on a mechanism support, wherein the mechanism support is provided with a first support column and a second support column for mounting the first gear set; a first locking step is provided at the end of the first support column, a second locking step is provided on the second support column, and a second through hole and a third through hole are provided on the gear cover for embedding the first locking step and the second locking step. In some embodiments of the present invention, the printer core further includes: A thermal head bracket, wherein the thermal head bracket is mounted on a rotating shaft; The second drive motor is mounted on the mechanism support; A conductive sheet is disposed on the mechanism support and connected to the rotating shaft and the second drive motor.

[0029] In some embodiments of the present invention, the movement support is further provided with a clearance for communicating with the first through hole, and the conductive sheet is provided with a third extension, which extends into the clearance and abuts against the outer wall of the movement support.

[0030] In some embodiments of the present invention, the printer core further includes a metal fastener for connecting the conductive sheet and the second drive motor; the metal fastener passes through the conductive sheet and is disposed on the second drive motor.

[0031] In some embodiments of the present invention, the metal fastener may be a bolt.

[0032] In some embodiments of the present invention, the conductive sheet is made of metal and is formed by stamping.

[0033] The mechanism support is also provided with a first positioning post, and the conductive sheet is provided with a second positioning hole that cooperates with the first positioning post.

[0034] According to the present invention, a printer employs a printer core structure. Attached Figure Description

[0035] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0036] in: Figure 1 This is a schematic diagram of the printer core of the present invention; Figure 2 This is a schematic diagram of the structure of the movement support of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the structure of the movement support of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the structure of the moving blade cover of the present invention; Figure 5 This is a localized explosion of the printer core of the present invention. Figure 1 ; Figure 6 This is an exploded view of the moving blade assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the driving device of the present invention; Figure 8 This is a localized explosion of the printer core of the present invention. Figure 2 ; Figure 9 This is a side view of the fixed blade of the present invention; Figure 10 This is a schematic diagram of the structure of the rotating shaft of the present invention; Figure 11 This is a schematic diagram of the structure of the gear cover of the present invention; Figure 12 This is a schematic diagram of the installation of the conductive sheet of the present invention; Figure 13 This is a localized explosion of the printer core of the present invention. Figure 3 ; Figure 14 This is a partial schematic diagram of the printer core of the present invention; Figure 15 This is a schematic diagram of the structure of the conductive sheet of the present invention.

[0037] Label Explanation: 10. Movement support; 11. Main body; 111. Mounting hole; 112. First through hole; 113. Clearance position; 114. First slot; 115. Second slot; 116. Third slot; 117. First support post; 1171. First locking step; 118. Second support post; 1181. Second locking step; 119. First positioning post; 12. First extension; 121. Limiting step; 13. Second extension; 113. First locking groove; 114. Second locking groove; 14. Mounting position; 15. Gap; 20. Moving blade cover; 21. Horizontal section; 211. Locking step; 212. Fourth locking step; 22. Front end; 221. Third locking step; 30. Moving blade assembly; 31. Movable blade; 32. Limiting assembly; 321. Lower fixing plate; 3211. Guide groove; 322. Spring piece; 33. Positioning element; 331. Guide step; 332. Drive groove; 34. Drive device; 341. First drive motor; 342. Worm gear; 343. First gear; 344. Drive rod; 40. Fixed tool holder; 41. First support seat; 411. Protrusion; 42. Second support seat; 421. Second positioning pin; 43. Third support seat; 431. Internal threaded hole; 50. Fixed blade; 51. First positioning hole; 52. Bolt; 60. Rotating shaft; 61. Rotating part; 62. Mounting part; 621. Annular inclined surface; 70. Gear cover; 71. First snap fastener; 72. Second snap fastener; 73. Third snap fastener; 74. Second through hole; 75. Third through hole; 80. Thermal head bracket; 90. Second drive motor; 100. Conductive sheet; 101. Third extension; 102. Second positioning hole; 120. Metal fastener. Detailed Implementation

[0038] To make the technical problems, solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the invention.

[0039] Please see Figures 1 to 15 This is a preferred embodiment of the present invention, a printer mechanism, including a mechanism support 10, a moving blade cover 20, a moving blade assembly 30, a fixed blade holder 40, and a fixed blade 50. A mounting position 14 is provided above the mechanism support 10; the moving blade cover 20 is disposed on the mechanism support 10; the moving blade assembly 30 is disposed on the mounting position 14 and located between the mechanism support 10 and the moving blade cover 20; the fixed blade holder 40 is arranged side-by-side with respect to the mechanism support 10; the fixed blade 50 is disposed on the fixed blade holder 40, and the middle of the fixed blade 50 protrudes upward 411, and the fixed blade 50 is disposed relative to the moving blade assembly 30; the moving blade assembly 30 includes a movable blade 31, which is disposed within the mounting position 14 and slidably connected to the mechanism support 10, and the movable blade 31 interacts with the fixed blade 50 to cut paper. The printer mechanism of the present invention reduces some parts and lowers the cost of parts and assembly by directly mounting the moving blade assembly 30 on the mechanism support 10. Furthermore, the fixed blade 50 is lifted upward in the middle to achieve a better paper cutting effect. At the same time, the position of the movable blade 31 is lowered, reducing the distance between the movable blade 31 and the printing plate, reducing blank areas on the printing paper, improving the utilization rate of printing paper, saving printing paper, and making it more environmentally friendly.

[0040] Please refer to details. Figure 2 A gap 15, communicating with the mounting position 14, is formed between the movement support 10 and the moving blade cover 20 to allow the movable blade 31 to pass through. Specifically, the movement support 10 includes a main body 11, a first extension 12, and a second extension 13. The main body 11 is equivalent to a conventional movement support 10. The first extension 12 is located on one long side of the main body 11; two second extensions 13 are provided, located on both sides of the short side of the main body 11 and perpendicular to the ends of the first extension 12; the first extension 12 and the two second extensions 13 form the mounting position 14. The first extension 12 and the second extension 13 can be directly molded onto the main body 11. The movement support 10 is a plastic part, integrally molded from plastic material. A stepped portion for supporting the moving blade cover 20 can also be provided on the inner side of the movement support 10.

[0041] Please refer to details. Figures 5 to 7The moving blade assembly 30 also includes: a limiting component 32, a positioning element 33, and a driving device 34. The limiting component 32 is used to limit the forward and backward movement of the movable blade 31 and prevent the movable blade 31 from tilting up when it is in contact with the fixed blade 50 to cut paper. The positioning element 33 is disposed on the movable blade 31. The driving device 34 is disposed at the mounting position 14 and located on the machine support 10, and is used to drive the movable blade 31 to move repeatedly. The limiting component 32 includes a lower fixing plate 321 and a spring piece 322. The lower fixing plate 321 is disposed above the machine support 10 and located in the mounting position 14. One long side of the spring piece 322 is disposed on the lower fixing plate 321, and the other side is suspended, but the suspended side is elastic so that the movable blade 31 tilts up excessively when cutting paper. During installation, the lower fixing plate 321 is locked to the machine support with screws, and the long side of the spring piece 322 is also locked to the machine support or the lower fixing plate 321 with screws. A guide step 331 is provided below the positioning component 33, and a guide groove 3211 is provided on the lower fixing plate 321 to cooperate with the guide step 331. Through the mutual cooperation of the guide step 331 and the guide groove 3211, the movable blade 31 can move repeatedly in one direction. In order to make the movement smoother, two guide steps 331 are provided, and two corresponding guide grooves 3211 are also provided. The driving device 34 is provided at the mounting position 14 and is located on the core support 10. It is used to drive the movable blade 31 to move repeatedly. The driving device 34 includes a first driving motor 341, a worm gear 342, a first gear 343, and a driving rod 344. The driving motor is provided on the moving blade cover 20. The worm gear 342 is provided at the output end of the driving motor and is driven by the first driving motor 341. The first gear 343 meshes with the worm gear 342 and is used to drive the movable blade 31. One end of the driving rod 344 is provided on the first gear 343, and the other end extends to the movable blade 31. The first drive motor 341 drives the worm gear 342 to rotate, which in turn drives the first gear 343 and the drive rod 344 to rotate. The drive rod 344 then moves the movable blade 31. The drive rod 344 is perpendicular to the first gear 343, with a distance between their central axes. A positioning member 33 is embedded in the movable blade 31, and a drive groove 332 is provided on the positioning member 33 for the other end of the drive rod 344 to be inserted, so that the positioning member 33 and the movable blade 31 can move simultaneously.

[0042] Please refer to details. Figure 4The movable knife cover 20 includes a horizontal portion 21 for covering the upper part of the movement support 10 and a front end portion 22 integrally formed with the horizontal portion 21. The front end portion 22 is provided with third locking steps 221 on both sides, and the horizontal portion 21 is provided with locking steps 211 on both sides. The movement support 10 is provided with first locking grooves 113 that cooperate with the third locking steps 221. The movable knife cover 20 is installed on the movement support 10. The two locking steps 211 are located inside the movement support 10, that is, inside the two second extension portions 13, and the two third locking steps 221 are embedded in the two first locking grooves 113. They are screwed onto the locking steps 211 after passing through the second extension portions 13. The front end portion 22 is positioned relative to the first extension portion 12, and a gap 15 is formed between its lower end and the mechanism support 10. To further improve the reliability after installation, fourth locking steps 212 are provided on both sides of the horizontal portion 21, and a second locking groove 114 that mates with the fourth locking steps 212 is provided on the second extension portion 13. The mechanism support 10 is also provided with a limiting step 121 for pressing down the end of the movable blade 31. The moving blade cover 20 is a sheet metal part, formed by one-piece stamping.

[0043] Please refer to details. Figures 8 to 9 A first support base 41 is provided on the upper surface of the fixed blade holder 40; the fixed blade 50 is supported by the first support base 41, which lifts the middle part of the fixed blade 50; the thickness of the fixed blade 50 is 7-12mm, preferably 9mm, to facilitate the lifting of the middle part; a first inclined surface is provided on the upper surface of the first support base 41, which gradually decreases in height along the short side of the fixed blade 50 from the cutting edge to the rear. The fixed blade 50 is supported by the first support base 41 to lift the middle part of the fixed blade 50, achieving a better paper cutting effect. At the same time, the first inclined surface on the first support base 41 makes the fixed blade tilted as a whole. When the moving blade and the fixed blade interact, the paper cutting effect is further improved.

[0044] Please refer to details. Figure 8 A second support base 42 is provided above the fixed blade holder 40 and on both sides of the first support base 41. The height of the first support base 41 is higher than the height of the second support base 42. Therefore, when the fixed blade 50 is installed on the first support base 41 and the second support base 42, the middle part of the fixed blade 50 is kept in a lifted state, that is, it is in an upward arc. At the same time, the upper end surface of the second support base 42 is provided with a second inclined surface, and the inclination angle is consistent with the first inclination angle, so as to ensure that the fixed blade 50 installed on the fixed blade holder 40 is kept inclined, that is, the cutting edge of the fixed blade 50 is inclined upward.

[0045] Please refer to details. Figure 8The upper end face of the second support base 42 is also provided with a second positioning post 421 for positioning the fixed blade 50. The fixed blade 50 is provided with a first positioning hole 51 that cooperates with the second positioning post 421. Through the cooperation of the first positioning hole 51 and the second positioning post 421, the fixed blade 50 is better positioned on the fixed blade holder 40. At the same time, one of the first positioning holes 51 is circular and the other is elongated (similar to a racetrack). The long axis of the elongated hole is parallel to the long side of the fixed blade 50, which facilitates better installation of the fixed blade 50. Both second positioning posts 421 can be cylindrical.

[0046] The fixed blade 50 is locked to the positioning seat by bolts 52; a third support seat 43 is also provided above the fixed blade seat 40 and on both sides of the first support seat 41. The third support seat 43 is located between the first support seat 41 and the second support seat 42. When locked, the third support seat 43 is provided with an internal threaded hole 431. The fixed blade 50 is locked to the internal threaded hole 431 by bolts 52 passing through it.

[0047] In this invention, the first support base 41, the second support base 42, and the third support base 43 can be adopted in the following two ways: First, the heights of the first support base 41, the third support base 43, and the second support base 42 decrease sequentially, which ensures that the middle part of the fixed blade 50 is arched and has a certain degree of smoothness. Second, please refer to the details. Figure 8 The height of the first support 41 is the same as that of the third support group, and both are higher than the height of the second support 42. A protrusion 411 is provided on the upper surface of the first support 41. The protrusion 411 reduces the contact area between the first support 41 and the fixed blade 50, so that the middle part of the fixed blade 50 can be better arched.

[0048] The printer mechanism also includes: a rotating shaft 60 and a gear cover 70. The rotating shaft 60 is mounted on the mechanism support 10; the gear cover 70 is mounted on the mechanism support 10; the gear cover 70 abuts against one end of the rotating shaft 60 to restrict its movement along the central axis; that is, the rotating shaft 60 is restricted to the mechanism support 10 by the gear cover 70. Please refer to the details. Figure 10The rotating shaft 60 includes a rotating part 61 and a mounting part 62 disposed at one end of the rotating part 61. The outer diameter of the mounting part 62 is smaller than the outer diameter of the main body 11. The movement support 10 is provided with a mounting hole 111 for engaging with the mounting part 62. Through the engagement of the mounting part 62 and the mounting hole 111, one end of the rotating shaft 60 is restricted. When the gear cover 70 is installed in place, it prevents the rotating shaft 60 from moving to the other end. Therefore, the engagement of the mounting part 62 and the gear cover 70 enables quick and convenient installation of the rotating shaft 60, without the need for C-type snap fasteners, thus reducing parts costs. Therefore, by setting the gear cover 70 to restrict the rotating shaft 60 on the movement support 10 to prevent the rotating shaft 60 from moving along its central axis, the rotating shaft 60 can be restricted on the movement support 10 without the need for C-type snap fasteners, achieving quick and convenient installation of the rotating shaft 60, further reducing the use of parts, lowering costs, and facilitating installation.

[0049] The end of the rotating part 61 without the mounting part 62 abuts against the gear cover 70, that is, the mounting part 62 is located at the end of the rotating part 61 away from the gear cover 70.

[0050] Please refer to details. Figure 3 The gear cover 70 has two first buckles 71 arranged side by side below it, and at least one second buckle 72 arranged above it. The movement support 10 has a first groove 114 that cooperates with the first buckle 71, and a second groove 115 that cooperates with the second buckle 72. By having the first buckle 71 cooperate with the first groove 114 and the second buckle 72 cooperate with the second groove 115, the gear cover 70 can be installed better and faster on the side of the movement support 10. The number of first buckles 71 and second buckles 72 can be selected and set according to actual needs. The movement support 10 also has an inclined surface to facilitate the installation of the first buckles 71 and second buckles 72.

[0051] In order to better restrict and fix the gear cover 70, a third buckle 73 is provided on the side wall of the gear cover 70, and a third slot 116 is provided on the movement support 10 to cooperate with the third buckle 73. The gear cover 70 is stably installed on the movement support 10 by the third buckle 73 cooperating with the first buckle 71 and the second buckle 72.

[0052] An annular inclined surface 621 is provided at the end of the mounting part 62 away from the rotating part 61 so that the rotating shaft 60 can pass through the mounting hole 111 better and facilitate quick installation of the rotating shaft 60; the movement support 10 is also provided with a first through hole 112 for the rotating shaft 60 to pass through. Specifically, the end of the rotating shaft 60 with the mounting part 62 first passes through the first through hole 112 and then is embedded in the mounting hole 111. Finally, the gear cover 70 is installed on the movement support 10.

[0053] The printer also includes a gear set mounted on the mechanism support 10. The mechanism support 10 is provided with a first support column 117 and a second support column 118 for mounting the gear set. The first support column 117 has a first locking step 1171 at its end, and the second support column 118 has a second locking step 1181. The gear cover 70 is provided with a second through hole 74 and a third through hole 75 for the first locking step 1171 and the second locking step 1181 to be inserted. After the gear cover 70 is installed, the second through hole 74 on the gear cover 70 cooperates with the first locking step 1171 and the third through hole 75 cooperates with the second locking step 1181, thereby better restricting the gears of the gear set on the first support column 117 and the second support column 118. Therefore, the rotation shaft 60 and gears can be limited by a gear cover 70, which improves the convenience of assembly and reduces the cost of installation.

[0054] The printer module also includes: a thermal head bracket 80, a second drive motor 90, and a conductive sheet 100. The thermal head bracket 80 is mounted on the rotating shaft 60 and can be used to mount the thermal head plate. The second drive motor 90 is mounted on the module support 10. The conductive sheet 100 is mounted on the module support 10 and connects the rotating shaft 60 and the second drive motor 90 (paper feed motor). Since the conductive sheet 100 is used to connect the second drive motor 90 and the rotating shaft 60, and the thermal head bracket 80 on the rotating shaft 60 can be used to mount the thermal head plate, the static electricity of the thermal head plate will be conducted through the thermal head bracket 80 to the rotating shaft 60, and then to the conductive sheet 100. Therefore, the static electricity conduction between the thermal head plate and the paper feed second drive motor 90 can be realized through the conductive sheet 100, which reduces the material waste of the grounding wire and improves the convenience of assembly.

[0055] The mechanism support 10 is also provided with a clearance position 113 for communicating with the first through hole 112. A third extension 101 is provided on the conductive sheet 100. The third extension 101 extends into the clearance position 113 and abuts against the outer wall of the mechanism support 10. The printer mechanism also includes a metal fastener 120 for connecting the conductive sheet 100 and the second drive motor 90. By engaging the third extension 101 with the metal fastener 120, the static electricity on the second drive motor 90 and the thermal head can be conducted to the conductive sheet 100 and then discharged uniformly through the conductive sheet 100.

[0056] The metal fastener 120 passes through the conductive sheet 100 and is mounted on the second drive motor 90. The conductive sheet 100 is made of metal and is formed by stamping. The metal fastener 120 can be a bolt 52, which passes through the conductive sheet 100 and is threadedly connected to the second drive motor 90. Alternatively, the metal fastener 120 can be a stepped metal piece, with a slot provided on the second drive motor 90, into which the small end of the metal piece can be directly embedded.

[0057] The movement support 10 is also provided with a first positioning post 119, and the conductive sheet 100 is provided with a second positioning hole 102 that cooperates with the first positioning post 119, so that the conductive sheet 100 can be better installed on the movement support 10 and the installation convenience can be improved.

[0058] The present invention also provides a printer that employs a printer core structure.

[0059] In summary, the printer core of the present invention has the following advantages: First, by directly mounting the moving blade assembly onto the movement support, some parts can be reduced, thus lowering the cost of parts and assembly. Secondly, by setting a gear cover to restrict the rotating shaft to the movement support to prevent the rotating shaft from moving along its central axis, the rotating shaft can be restricted to the movement support without the need for C-type buckles, which realizes the quick and convenient installation of the rotating shaft, further reduces the use of parts, reduces costs, and facilitates installation. Third, the conductive sheet is used to connect the second drive motor and the rotating shaft. The thermal head bracket on the rotating shaft can be used to install the thermal head sheet. The static electricity of the thermal head sheet will be conducted to the rotating shaft through the thermal head bracket, and then to the conductive sheet. Therefore, the static electricity conduction between the thermal head sheet and the second drive motor for paper feeding can be realized through the conductive sheet, which reduces the material waste of the grounding wire and improves the convenience of assembly. Fourth, the fixed blade is lifted upwards in the middle to achieve a better paper cutting effect; at the same time, the position of the movable blade is lowered, reducing the distance between the movable blade and the print head, reducing blank areas on the printing paper, improving the utilization rate of printing paper, saving printing paper, and making it more environmentally friendly.

[0060] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A printer cartridge, characterized in that, include: A movement support, wherein a mounting position is provided on the upper part of the movement support; A movable blade cover is disposed on the movement support; A moving blade assembly is disposed on the mounting position and located between the movement support and the moving blade cover; A fixed tool holder, which is arranged side by side with respect to the movement support; A fixed blade is disposed on a fixed blade holder, and the middle part of the fixed blade protrudes upward. The fixed blade is disposed relative to the moving blade assembly. The moving blade assembly includes: A movable blade is disposed within the mounting position and is slidably connected to the mechanism support; A rotating shaft is mounted on the movement support. A gear cover, the gear cover being disposed on the movement support; The gear cover abuts against one end of the rotating shaft to restrict its movement along the central axis; the rotating shaft includes a rotating part and a mounting part disposed at one end of the rotating part, the outer diameter of the mounting part is smaller than the outer diameter of the main body part, and the movement support is provided with mounting holes for cooperating with the mounting part. The rotating part without the mounting part abuts against the gear cover, that is, the mounting part is located at the end of the rotating part away from the gear cover; two first buckles are provided side by side below the gear cover, and at least one second buckle is provided above it; the movement support is provided with a first groove that cooperates with the first buckles, and also with a second groove that cooperates with the second buckles; a third buckle is also provided on the side wall of the gear cover, and a third groove that cooperates with the third buckle is provided on the movement support.

2. The printer cartridge according to claim 1, characterized in that, The movement support includes: Main body; A first extension portion is provided on a long side of the main body portion; The second extension is provided in two parts, and is located on both sides of the short side of the main body and perpendicular to the two ends of the first extension. The first extension and the two second extensions form the mounting position.

3. The printer cartridge according to claim 1, characterized in that, The moving blade assembly also includes: A limiting component, wherein the limiting component is used to limit the forward and backward movement of the movable blade; A positioning element, wherein the positioning element is disposed on the movable blade; A driving device is disposed at the mounting position and located on the mechanism support, for driving the movable blade to move repeatedly.

4. The printer cartridge according to claim 1, characterized in that, The moving knife cover includes a horizontal portion for covering the upper part of the movement support and a front end portion integrally formed with the horizontal portion. The front end portion is provided with third locking steps on both sides, and the horizontal portion is provided with locking steps on both sides. The movement support is provided with a first locking groove that cooperates with the third locking steps. The moving knife cover is installed on the movement support, and the two locking steps are located inside the movement support.

5. The printer cartridge according to claim 1, characterized in that, The upper surface of the fixed blade holder is provided with a first support base; the fixed blade is supported by the first support base to lift the middle part of the fixed blade; the upper surface of the first support base is provided with a first inclined surface, and the height of the first inclined surface gradually decreases along the short side of the fixed blade from the cutting edge of the fixed blade to the rear.

6. The printer cartridge according to claim 5, characterized in that, A second support is provided above the fixed tool holder and on both sides of the first support, with the height of the first support being higher than the height of the second support; a second inclined surface is provided on the upper end surface of the second support, and the inclination angle is consistent with the first inclination angle.

7. The printer cartridge according to claim 1, characterized in that, The printer module also includes: A thermal head bracket, wherein the thermal head bracket is mounted on a rotating shaft; The second drive motor is mounted on the mechanism support; A conductive sheet is disposed on the mechanism support and connected to the rotating shaft and the second drive motor.

8. The printer cartridge according to claim 7, characterized in that, The printer core also includes a metal fastener for connecting the conductive sheet to the second drive motor; the metal fastener passes through the conductive sheet and is positioned on the second drive motor.

9. The printer cartridge according to claim 8, characterized in that, The mechanism support is also provided with a first positioning post, and the conductive sheet is provided with a second positioning hole that cooperates with the first positioning post.

10. A printer, characterized in that, The printer cartridge described in any one of claims 1-9 is used.

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