Thermal transfer ribbon cartridge and printer

Abstract

The utility model discloses a thermal transfer ribbon box and a printer, and relates to the technical field of printer equipment, the thermal transfer ribbon box comprises a shell, an issuing shaft, a rolling shaft and a reset piece, the shell comprises a lower shell and a cover body covering the lower shell, the inner side wall of the cover body is provided with a positioning protrusion structure, the issuing shaft is arranged in the lower shell, and the rolling shaft is arranged in the lower shell. The releasing shaft is arranged in the lower shell, the releasing shaft is rotationally connected with the positioning protrusion structure and used for releasing a thermal transfer ribbon, the winding shaft is arranged in the lower shell, the winding shaft and the releasing shaft are arranged at an interval, the winding shaft is rotationally connected with the positioning protrusion structure and used for winding the thermal transfer ribbon, and the thermal transfer ribbon between the releasing shaft and the winding shaft is used for printing; the reset part is arranged between the positioning bulge structure and the winding shaft and is used for providing pre-tightening force in a second direction for the releasing shaft or the winding shaft, or the reset part is arranged between the positioning bulge structure and the winding shaft and is used for providing pre-tightening force in a first direction for the releasing shaft or the winding shaft, so that the thermal transfer ribbon between the releasing shaft and the winding shaft is in a tightened state; and the unclear condition during printing can be prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of printer equipment, and particularly relates to a carbon tape box and a printer. BACKGROUND

[0002] At present, the carbon tape box is a device for accommodating carbon tape in the printer, and the carbon tape box comprises a delivery shaft, a winding shaft and a shell. The delivery shaft and the winding shaft are both rotationally installed in the shell, and the winding shaft and the delivery shaft are both wound with carbon tape. The delivery shaft is used for delivering carbon tape, and the winding shaft is used for recycling carbon tape.

[0003] In the related art, a compression spring is arranged between the winding shaft and the shell and between the delivery shaft and the shell, and the compression spring is in a compressed state. The compression spring is used for providing an axial compression force for the winding shaft and the delivery shaft, so that the delivery shaft and the winding shaft are kept in a stable relative position.

[0004] However, when the carbon tape is pulled out from the winding shaft or the delivery shaft by an external force and becomes redundant, the carbon tape is no longer taut, which causes the surface of the carbon tape to wrinkle and makes the printing unclear. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a carbon tape box and a printer, which can solve the technical problem that the carbon tape is pulled out from the winding shaft or the delivery shaft by an external force and becomes redundant, so that the carbon tape is no longer taut, which causes the printing to be unclear.

[0006] In a first aspect, the present application provides a carbon tape box, which comprises:

[0007] a shell comprising a lower shell and a cover arranged on the lower shell, and an inner side wall of the cover being provided with a positioning protruding structure;

[0008] a delivery shaft arranged in the lower shell and rotationally connected with the positioning protruding structure, and used for rotating in a first direction to deliver carbon tape;

[0009] a winding shaft arranged in the lower shell and rotationally connected with the positioning protruding structure, and arranged in a spaced manner with the delivery shaft, and used for rotating in the first direction to wind the carbon tape;

[0010] a reset member arranged between the positioning protruding structure and the delivery shaft or arranged between the positioning protruding structure and the winding shaft. The reset member is used for providing a pre-tightening force in a second direction for the delivery shaft or the winding shaft, so that the carbon tape between the delivery shaft and the winding shaft is in a taut state, and the second direction is opposite to the first direction. Alternatively, the reset member is arranged between the positioning protruding structure and the delivery shaft or arranged between the positioning protruding structure and the winding shaft. The reset member is used for providing a pre-tightening force in the first direction for the delivery shaft or the winding shaft, so that the carbon tape between the delivery shaft and the winding shaft is in a taut state.

[0011] In some embodiments, the positioning protruding structure comprises a first protruding part and a second protruding part arranged at intervals, one of the dispensing shaft and the winding shaft is rotationally connected with the first protruding part, and the other of the dispensing shaft and the winding shaft is rotationally connected with the second protruding part.

[0012] In some embodiments, the dispensing shaft is rotationally connected with the first protruding part, one end of the reset member is connected with the first protruding part, the other end of the reset member is provided with a blocking part and extends into the dispensing shaft, the inside of the dispensing shaft is provided with a limiting rib, and the blocking part cooperates with the limiting rib to provide the reset member with the pre-tightening force in the second direction for the dispensing shaft.

[0013] In some embodiments, the first protruding part comprises:

[0014] a first protruding part connected with the inner side wall of the cover body, the first protruding part being provided with a plug-in hole, and the plug-in hole being provided with a limiting strip;

[0015] a second protruding part comprising a first part and a second part connected with each other, the peripheral side wall of the first part being provided with a rib, the first part being plugged into the plug-in hole, and the rib cooperating with the limiting strip to limit the rotation of the first part, the second part being plugged into the dispensing shaft, and the outer periphery of the second part being sleeved with the reset member, and the reset member being connected with the second part.

[0016] In some embodiments, the second protruding part further comprises a partition plate, the first part and the second part are connected through the partition plate, and the partition plate abuts against the first protruding part.

[0017] In some embodiments, the carbon tape cartridge comprises a ratchet mechanism, the ratchet mechanism is arranged on the winding shaft, and the ratchet mechanism is used to prevent the winding shaft from rotating in the second direction.

[0018] In some embodiments, the ratchet mechanism comprises a ratchet wheel and a pawl, the ratchet wheel is connected with one end of the winding shaft, the pawl is movably arranged on the lower shell, and the pawl cooperates with the ratchet wheel to prevent the winding shaft from rotating in the second direction.

[0019] In some embodiments, the ratchet mechanism further comprises an elastic connecting member, one end of the pawl is rotationally connected with the lower shell, the other end of the pawl is connected with the lower shell through the elastic connecting member, and the elastic connecting member is used to drive the other end of the pawl to cooperate with the ratchet wheel to prevent the winding shaft from rotating in the second direction.

[0020] In some embodiments, the carbon tape cartridge comprises an elastic member compressed between the cover and a first end of the winding shaft, a second end of the winding shaft abutting against an inner side wall of the lower shell, the first and second ends of the winding shaft being opposite ends.

[0021] In some embodiments, the cover is provided with a first limiting structure, the elastic member is sleeved on the positioning protruding structure and compressed between the first limiting structure and the winding shaft, an end of the elastic member away from the winding shaft is provided with a first anti-rotation structure, the first limiting structure and the first anti-rotation structure are arranged along the circumference of the positioning protruding structure, the first anti-rotation structure cooperates with the first limiting structure to limit rotation of the elastic member in the first direction.

[0022] In some embodiments, the first limiting structure comprises a plurality of blocking strips, the plurality of blocking strips are arranged at intervals along the circumference of the positioning protruding structure, and the first anti-rotation structure is located between two adjacent blocking strips.

[0023] When the first anti-rotation structure cooperates with one of the two adjacent blocking strips, rotation of the elastic member in the first direction is limited; when the first anti-rotation structure cooperates with the other of the two adjacent blocking strips, rotation of the elastic member in a second direction opposite to the first direction is limited.

[0024] In some embodiments, a grinding pad is arranged between the second end of the winding shaft and the inner side wall of the lower shell.

[0025] In some embodiments, the reset member is a torsion spring.

[0026] In some embodiments, the lower shell is formed with a winding cavity and a dispensing cavity, the lower shell further has a tape inlet communicating with the winding cavity and a tape outlet communicating with the dispensing cavity, the winding shaft is rotatably installed in the winding cavity, the dispensing shaft is rotatably installed in the dispensing cavity, the carbon tape on the dispensing shaft extends out of the tape outlet and extends into the winding cavity from the tape inlet to be wound on the winding shaft.

[0027] In a second aspect, the embodiments of the present application provide a printer, comprising:

[0028] a printer body;

[0029] a printhead module arranged on the printer body;

[0030] the carbon tape cartridge as any one of the above embodiments, the carbon tape cartridge being arranged on the printer body.

[0031] The carbon tape cartridge and the printer based on the embodiments of the present application have at least the following beneficial effects:

[0032] By rotatingly connecting the dispensing shaft and the winding shaft with the positioning protruding structure on the cover body, and spacing the dispensing shaft and the winding shaft in the lower shell, the dispensing shaft can rotate in the first direction and dispense the ribbon, and the winding shaft can rotate in the first direction and wind the ribbon. By disposing the reset member between the positioning protruding structure and the dispensing shaft, the reset member can provide the dispensing shaft or the winding shaft with a pre-tightening force in the second direction opposite to the first direction. When the ribbon is pulled out from the winding shaft or the dispensing shaft by an external force and becomes redundant, the reset member can drive the dispensing shaft to rotate in the second direction, so as to wind the pulled-out ribbon on the dispensing shaft, and the ribbon between the dispensing shaft and the winding shaft is in a taut state. Alternatively, by disposing the reset member between the positioning protruding structure and the winding shaft, the reset member can provide the dispensing shaft or the winding shaft with a pre-tightening force in the first direction. When the ribbon is pulled out from the winding shaft or the dispensing shaft by an external force and becomes redundant, the reset member can drive the winding shaft to rotate in the first direction, so as to wind the pulled-out ribbon on the winding shaft, and the ribbon between the dispensing shaft and the winding shaft is in a taut state. Thus, the reset member can keep the ribbon between the dispensing shaft and the winding shaft in a taut state, and prevent unclear printing. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0034] Figure 1 A perspective structural schematic diagram of a ribbon cartridge provided by an embodiment of the present application;

[0035] Figure 2 An exploded view of a ribbon cartridge provided by an embodiment of the present application;

[0036] Figure 3 A structural schematic diagram of the cover body from a first perspective provided by an embodiment of the present application;

[0037] Figure 4 A structural schematic diagram of the cover body from a second perspective provided by an embodiment of the present application;

[0038] Figure 5 A structural schematic diagram of a first part of the second protrusion provided by an embodiment of the present application;

[0039] Figure 6 A structural schematic diagram of a second part of the second protrusion provided by an embodiment of the present application;

[0040] Figure 7A structural schematic diagram of a lower shell provided by an embodiment of the present application is shown in the figure;

[0041] Figure 8 A structural schematic diagram of a printer provided by an embodiment of the present application is shown in the figure.

[0042] Legend of reference signs:

[0043] 100, printer; 10, carbon tape cartridge; 1, shell; 11, lower shell; 111, unwinding cavity; 112, dispensing cavity; 113, tape inlet; 114, tape outlet; 12, cover; 121, first limiting structure; 1211, blocking strip; 2, positioning protrusion structure; 21, first protrusion part; 211, first protrusion; 2111, insertion hole; 2112, limiting strip; 212, second protrusion; 2121, first part; 2122, second part; 2123, rib; 2124, partition; 22, second protrusion part; 3, dispensing shaft; 31, limiting rib; 4, carbon tape; 5, winding shaft; 6, reset member; 61, blocking part; 7, ratchet mechanism; 71, ratchet; 72, pawl; 73, elastic connecting member; 8, elastic member; 81, first anti-rotation structure; 9, abrasive pad; 20, printer main body; 30, print head module. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0045] In the first aspect, please refer to Figures 1 to 3 A carbon tape cartridge 10 provided by an embodiment of the present application includes a shell 1, a dispensing shaft 3, a winding shaft 5 and a reset member 6.

[0046] Specifically, the shell 1 includes a lower shell 11 and a cover 12 arranged on the lower shell 11, an inner side wall of the cover 12 is provided with a positioning protrusion structure 2, the dispensing shaft 3 is arranged in the lower shell 11 and is rotationally connected with the positioning protrusion structure 2, so that the dispensing shaft 3 can rotate in a first direction for dispensing the carbon tape 4, the winding shaft 5 is arranged in the lower shell 11 and is arranged in a spaced manner with the dispensing shaft 3, the winding shaft 5 is rotationally connected with the positioning protrusion structure 2, so that the winding shaft 5 can rotate in the first direction for winding the carbon tape 4, and the carbon tape 4 between the dispensing shaft 3 and the winding shaft 5 is used for printing.

[0047] The reset member 6 is arranged between the positioning protruding structure 2 and the dispensing shaft 3, and is used to provide a pre-tightening force in the second direction for the dispensing shaft 3 or the winding shaft 5, so that the carbon ribbon 4 between the dispensing shaft 3 and the winding shaft 5 is in a taut state. The second direction is opposite to the first direction. Alternatively, the reset member 6 is arranged between the positioning protruding structure 2 and the winding shaft 5, and is used to provide a pre-tightening force in the first direction for the dispensing shaft 3 or the winding shaft 5, so that the carbon ribbon 4 between the dispensing shaft 3 and the winding shaft 5 is in a taut state.

[0048] It can be understood that the inside of the shell 1 can have two chambers for accommodating the dispensing shaft 3 and the winding shaft 5 respectively, and the positioning protruding structure 2 has two spaced apart rotating mounting positions, one of the dispensing shaft 3 and the winding shaft 5 is rotatably connected to the first rotating mounting position, and the other of the dispensing shaft 3 and the winding shaft 5 is rotatably connected to the second rotating mounting position. The dispensing shaft 3 and the winding shaft 5 can be synchronously rotated in the first direction, the dispensing shaft 3 is used to dispense the carbon ribbon 4, and the winding shaft 5 is used to wind the carbon ribbon 4. The print head on the printer 100 can be used to heat the carbon ribbon 4 between the dispensing shaft 3 and the winding shaft 5, so that the carbon ribbon 4 can be used for printing.

[0049] It should be noted that during printing, the carbon ribbon 4 has the risk of being pulled out from the winding shaft 5 or the dispensing shaft 3 by external force and becoming redundant, at this time, the carbon ribbon 4 between the winding shaft 5 and the dispensing shaft 3 is no longer taut, which can cause the surface of the carbon ribbon 4 to wrinkle, and the print head can easily appear unclear when heating the carbon ribbon 4 for printing.

[0050] More clearly, the reset member 6 is arranged between the positioning protruding structure 2 and the dispensing shaft 3, when the carbon ribbon 4 is pulled out from the winding shaft 5 or the dispensing shaft 3 by external force and becomes redundant, the reset member 6 can drive the dispensing shaft 3 to rotate in the second direction, and the pulled-out carbon ribbon 4 is recovered to the dispensing shaft 3, so that the carbon ribbon 4 between the dispensing shaft 3 and the winding shaft 5 is in a taut state. Alternatively, the reset member 6 is arranged between the positioning protruding structure 2 and the winding shaft 5, when the carbon ribbon 4 is pulled out from the winding shaft 5 or the dispensing shaft 3 by external force and becomes redundant, the reset member 6 can drive the winding shaft 5 to rotate in the first direction, and the pulled-out carbon ribbon 4 is recovered to the winding shaft 5, so that the carbon ribbon 4 between the dispensing shaft 3 and the winding shaft 5 is in a taut state. Therefore, the reset member 6 can keep the carbon ribbon 4 between the dispensing shaft 3 and the winding shaft 5 in a taut state, which can prevent unclear situations during printing.

[0051] Please refer to Figure 3 and Figure 4 In some embodiments, the positioning protruding structure 2 includes a first protruding part 21 and a second protruding part 22 arranged at intervals, one of the dispensing shaft 3 and the winding shaft 5 is rotatably connected to the first protruding part 21, and the other of the dispensing shaft 3 and the winding shaft 5 is rotatably connected to the second protruding part 22.

[0052] Optionally, the inner side wall of the cover 12 can be provided with a first protruding part 21 and a second protruding part 22 at intervals, both of which extend towards the inside of the lower shell 11, and the axis of the first protruding part 21 is parallel to the axis of the second protruding part 22, and the axis of the dispensing shaft 3 is also parallel to the axis of the winding shaft 5.

[0053] In this embodiment, the first protruding part 21 can be inserted into the dispensing shaft 3, so that the dispensing shaft 3 can be rotationally connected with the first protruding part 21, and the second protruding part 22 can be inserted into the winding shaft 5, so that the winding shaft 5 can be rotationally connected with the second protruding part 22, so that the dispensing shaft 3 can dispense the carbon tape 4 wound thereon to the winding shaft 5, and the printhead can heat the carbon tape 4 between the dispensing shaft 3 and the winding shaft 5 for printing, and the printed carbon tape 4 can be wound onto the winding shaft 5, which can facilitate printing.

[0054] In other embodiments, the first protruding part 21 can be inserted into the winding shaft 5, so that the winding shaft 5 is rotationally connected with the first protruding part 21, and the second protruding part 22 is inserted into the dispensing shaft 3, so that the dispensing shaft 3 is rotationally connected with the second protruding part 22, and the dispensing shaft 3 can also dispense the carbon tape 4 wound thereon to the winding shaft 5, which can facilitate printing.

[0055] Please refer to Figures 1 to 4 In some embodiments, the dispensing shaft 3 is rotationally connected with the first protruding part 21, one end of the reset member 6 is connected with the first protruding part 21, the other end of the reset member 6 is provided with a blocking part 61 and extends into the dispensing shaft 3, the inside of the dispensing shaft 3 is provided with a limiting rib 31, and the blocking part 61 cooperates with the limiting rib 31, so that the reset member 6 provides the dispensing shaft 3 with a pre-tightening force in the second direction.

[0056] Optionally, the first protruding part 21 can be inserted into the inside of the dispensing shaft 3, so that the dispensing shaft 3 can rotate relative to the first protruding part 21 in the first direction, one end of the reset member 6 can be connected with the first protruding part 21, so that the reset member 6 can be stably connected with the first protruding part 21, the other end of the reset member 6 is provided with a blocking part 61, and the blocking part 61 extends into the inside of the dispensing shaft 3, when the dispensing shaft 3 rotates in the first direction under the action of an external force, the blocking part 61 can also cooperate with the limiting rib 31 in the inside of the dispensing shaft 3, so that the reset member 6 can provide the dispensing shaft 3 with a pre-tightening force in the second direction, when the external force no longer acts on the dispensing shaft 3, the reset member 6 can drive the dispensing shaft 3 to rotate in the second direction, so as to wind the pulled-out carbon tape 4 back onto the dispensing shaft 3, so that the carbon tape 4 between the dispensing shaft 3 and the winding shaft 5 is in a taut state, which can prevent unclear printing.

[0057] In addition, after part of the carbon tape 4 on the dispensing shaft 3 is pulled out, the pulled-out carbon tape 4 can be wound onto the dispensing shaft 3 under the action of the reset member 6, which can reduce the waste of the carbon tape 4.

[0058] Referring to Figures 3 to 6 In some embodiments, the first protrusion 21 comprises a first protrusion 211 and a second protrusion 212, the first protrusion 211 is connected with the inner side wall of the cover 12, the first protrusion 211 has a plug-in hole 2111, a limiting strip 2112 is arranged in the plug-in hole 2111, the second protrusion 212 comprises a first part 2121 and a second part 2122 connected with each other, a rib 2123 is arranged on the circumferential side wall of the first part 2121, the first part 2121 is inserted into the plug-in hole 2111, and the rib 2123 cooperates with the limiting strip 2112 to limit the rotation of the first part 2121, the second part 2122 is inserted into the dispensing shaft 3, and the outer circumference of the second part 2122 is sleeved with the reset member 6, and the reset member 6 is connected with the second part 2122.

[0059] Optionally, the first protrusion 211 is integrally formed with the inner side wall of the cover 12, and the end of the first protrusion 211 away from the cover 12 has a plug-in hole 2111, the axis of the plug-in hole 2111 is the same as the protruding direction of the first protrusion 211, a plurality of limiting strips 2112 can be arranged on the inner wall surface of the plug-in hole 2111, the plurality of limiting strips 2112 can be arranged at intervals along the circumference of the plug-in hole 2111, the first part 2121 of the second protrusion 212 can be inserted into the plug-in hole 2111, and a plurality of ribs 2123 are arranged on the outer circumferential side wall of the first part 2121, the plurality of ribs 2123 can be arranged at intervals along the circumference of the first part 2121, at least one rib 2123 is arranged between adjacent two limiting strips 2112, the rib 2123 can cooperate with the limiting strip 2112 to limit the rotation of the first part 2121, and the second part 2122 can be inserted into the dispensing shaft 3, and the reset member 6 is sleeved and arranged on the second part 2122.

[0060] The first part 2121 and the second part 2122 are plug-in matched, which is very convenient to assemble, and the first part 2121 can also limit the rotation of the second part 2122, so that the reset member 6 on the second part 2122 can reset the dispensing shaft 3 and drive the dispensing shaft 3 to rotate in the second direction, so as to retract the carbon tape 4 pulled out to the dispensing shaft 3.

[0061] Referring to Figures 4 to 6 In some embodiments, the second protrusion 212 further comprises a partition plate 2124, the first part 2121 and the second part 2122 are connected through the partition plate 2124, and the partition plate 2124 abuts against the first protrusion 211.

[0062] It can be understood that the first part 2121 and the second part 2122 are both cylindrical structures, a partition plate 2124 is arranged between the first part 2121 and the second part 2122, the partition plate 2124 is disc-shaped, the radial dimension of the partition plate 2124 is greater than the radial dimensions of the first part 2121 and the second part 2122, the first part 2121 is inserted into the insertion hole 2111 of the first protrusion 211, the partition plate 2124 can abut against the top end of the first protrusion 211, so that the partition plate 2124 can limit the depth of insertion of the first part 2121 into the insertion hole 2111, so that the partition plate 2124 can play a limiting role, and the second protrusion 212 can be assembled to a preset position, further facilitating the assembly of the second protrusion 212.

[0063] Referring to Figure 7 In some embodiments, the carbon tape cartridge 10 further comprises a ratchet mechanism 7, which is arranged on the winding shaft 5, and the ratchet mechanism 7 can be used to prevent the winding shaft 5 from rotating in the second direction.

[0064] Specifically, the ratchet mechanism 7 can play a role of preventing reverse rotation, the ratchet mechanism 7 is arranged on one end of the winding shaft 5 facing the cover body 12, and the ratchet mechanism 7 can be used to prevent the winding shaft 5 from rotating in the second direction, so that under the action of the ratchet mechanism 7, the winding shaft 5 can only rotate in the first direction, i.e., the winding shaft 5 can only rotate in the direction of recovering the carbon tape 4, which can prevent the winding shaft 5 from dispensing the used carbon tape 4 onto the dispensing shaft 3, and further prevent the situation of unclear printing.

[0065] Referring to Figure 7 In some embodiments, the ratchet mechanism 7 comprises a ratchet wheel 71 and a pawl 72, the ratchet wheel 71 is connected to one end of the winding shaft 5, the pawl 72 is movably arranged on the lower shell 11, and the pawl 72 can cooperate with the ratchet wheel 71 to prevent the winding shaft 5 from rotating in the second direction.

[0066] It can be understood that the ratchet wheel 71 is connected to one end of the winding shaft 5 facing the cover body 12, and the winding shaft 5 rotates to drive the ratchet wheel 71 to rotate, i.e., the ratchet wheel 71 and the winding shaft 5 rotate synchronously, the circumferential side wall of the ratchet wheel 71 has a plurality of teeth, the plurality of teeth are arranged along the circumference of the ratchet wheel 71, the plurality of teeth are all one-way teeth, and the plurality of teeth have the same direction, when the ratchet wheel 71 rotates in the first direction, the pawl 72 slides on the teeth, so that the winding shaft 5 can rotate in the first direction, when the ratchet wheel 71 rotates in the second direction, the pawl 72 abuts against the teeth, the pawl 72 can limit the rotation of the ratchet wheel 71, so that the winding shaft 5 cannot rotate in the second direction, so that under the cooperation of the pawl 72 and the ratchet wheel 71, the winding shaft 5 can only rotate in the first direction.

[0067] Referring to Figure 7In some embodiments, the ratchet mechanism 7 further comprises an elastic connecting piece 73, the middle part of the pawl 72 is rotationally connected with the lower shell 11, one end of the pawl 72 is connected with the lower shell 11 through the elastic connecting piece 73, and the elastic connecting piece 73 is used to drive the other end of the pawl 72 to cooperate with the ratchet wheel 71 to prevent the winding shaft 5 from rotating in the second direction.

[0068] Specifically, the elastic connecting piece 73 is a spring, the elastic connecting piece 73 is compressed between the one end of the pawl 72 and the lower shell 11, and under the action of the elastic connecting piece 73, the one end of the pawl 72 can be driven to move away from the lower shell 11, so that the other end of the pawl 72 moves towards the ratchet wheel 71, thereby the pawl 72 can be kept in cooperation with the ratchet wheel 71 under the driving of the pawl 72.

[0069] More clearly, when the ratchet wheel 71 rotates in the first direction, after the pawl 72 slides over the teeth, the elastic connecting piece 73 can drive the pawl 72 to insert between the adjacent two teeth, so that the pawl 72 can cooperate with the teeth to prevent the ratchet wheel 71 from rotating in the second direction.

[0070] Please refer to Figures 1 to 3 In some embodiments, the carbon tape cartridge 10 comprises an elastic piece 8, the elastic piece 8 is compressed between the cover 12 and the first end of the winding shaft 5, the second end of the winding shaft 5 abuts against the inner side wall of the lower shell 11, and the first end and the second end of the winding shaft 5 are opposite ends.

[0071] It should be noted that the one end of the winding shaft 5 close to the cover 12 is the first end, the one end of the winding shaft 5 away from the cover 12 is the second end, the elastic piece 8 is arranged between the cover 12 and the first end of the winding shaft 5, and the elastic piece 8 is in a compressed state, so that the elastic piece 8 can drive the second end of the winding shaft 5 to abut against the inner side wall of the lower shell 11, and the friction between the winding shaft 5 and the lower shell 11 can be increased, so that a certain driving force is required to rotate the winding shaft 5, thereby reducing the occurrence of the error of rotating the winding shaft 5.

[0072] Please refer to Figure 3 In some embodiments, the cover 12 is provided with a first limiting structure 121, the elastic piece 8 is sleeved on the positioning protruding structure 2 and compressed between the first limiting structure 121 and the winding shaft 5, one end of the elastic piece 8 away from the winding shaft 5 is provided with a first anti-rotation structure 81, the first limiting structure 121 and the first anti-rotation structure 81 are arranged along the circumference of the positioning protruding structure 2, the first anti-rotation structure 81 cooperates with the first limiting structure 121 to limit the rotation of the elastic piece 8 in the first direction.

[0073] It can be understood that the elastic member 8 is a spring, the positioning protrusion structure 2 includes a first protrusion 21 and a second protrusion 22, and the winding shaft 5 is rotationally connected with the second protrusion 22, so that the winding shaft 5 can rotate relative to the second protrusion 22 in a first direction, thereby recycling the used carbon tape 4.

[0074] Optionally, the cover 12 is provided with a first limiting structure 121, the first limiting structure 121 can be arranged on the circumferential side of the second protrusion 22, the elastic member 8 is sleeved on the second protrusion 22, and the elastic member 8 can also contact the first limiting structure 121, the winding shaft 5 and the first limiting structure 121 can compress the elastic member 8, so that the elastic member 8 can push the winding shaft 5 in the axial direction of the winding shaft 5, so that the winding shaft 5 abuts against the inner side wall of the lower shell 11. The end of the elastic member 8 away from the winding shaft 5 is provided with a first anti-rotation structure 81, and the first anti-rotation structure 81 is arranged along the circumferential direction of the second protrusion 22.

[0075] It should be noted that during the rotation of the winding shaft 5 in the first direction, the winding shaft 5 drives the elastic member 8 to rotate in the first direction by a certain angle until the first anti-rotation structure 81 contacts the first limiting structure 121. After the first anti-rotation structure 81 contacts the first limiting structure 121, the first limiting structure 121 can limit the first anti-rotation structure 81 from moving in the first direction, thereby limiting the elastic member 8 from rotating in the first direction. That is, the winding shaft 5 cannot drive the elastic member 8 to rotate in the first direction. At this time, the elastic member 8 can be stably compressed between the first limiting structure 121 and the winding shaft 5, so that the elastic member 8 is more firmly installed, thereby the elastic member 8 can provide a stable pushing force, and the axial compression effect on the winding shaft 5 is better.

[0076] Please refer to Figure 4 In some embodiments, the first limiting structure 121 includes a plurality of blocking strips 1211, the plurality of blocking strips 1211 are arranged at intervals along the circumferential direction of the positioning protrusion structure 2, and the first anti-rotation structure 81 is located between two adjacent blocking strips 1211. When the first anti-rotation structure 81 cooperates with one of the two adjacent blocking strips 1211, the rotation of the elastic member 8 in the first direction is limited. When the first anti-rotation structure 81 cooperates with the other of the two adjacent blocking strips 1211, the rotation of the elastic member 8 in the second direction is limited, and the second direction is opposite to the first direction.

[0077] It can be understood that the blocking strip 1211 is a long plate structure, and the blocking strip 1211 is arranged vertically on the inner side wall of the cover 12. The plurality of blocking strips 1211 can be arranged at intervals along the circumferential direction of the second protrusion 22, and the first anti-rotation structure 81 can extend between two adjacent blocking strips 1211.

[0078] In the process of rotating the elastic member 8 along the first direction by the winding shaft 5, the first anti-rotation structure 81 also moves along the first direction around the axis of the winding shaft 5, when the first anti-rotation structure 81 moves to cooperate with one of the two adjacent blocking strips 1211, the blocking strip 1211 can prevent the first anti-rotation structure 81 from continuing to move along the first direction, thereby limiting the rotation of the elastic member 8 along the first direction.

[0079] Similarly, in the process of rotating the elastic member 8 along the second direction by the winding shaft 5, the first anti-rotation structure 81 also moves along the second direction around the axis of the winding shaft 5, when the first anti-rotation structure 81 moves to cooperate with the other of the two adjacent blocking strips 1211, the other blocking strip 1211 can prevent the first anti-rotation structure 81 from continuing to move along the second direction, thereby limiting the rotation of the elastic member 8 along the second direction.

[0080] Therefore, one of the two adjacent blocking strips 1211 can limit the rotation of the elastic member 8 along the first direction, and the other of the two adjacent blocking strips 1211 can limit the rotation of the elastic member 8 along the second direction, so that the elastic member 8 cannot rotate in the forward direction or in the reverse direction, thereby further stably assembling the elastic member 8 between the winding shaft 5 and the cover 12, so that the elastic member 8 can provide a stable pushing force and has a good effect of axially compressing the winding shaft 5.

[0081] Please refer to Figure 2 In some embodiments, the second end of the winding shaft 5 and the inner side wall of the lower shell 11 are provided with an abrasive pad 9.

[0082] Optionally, the end of the winding shaft 5 away from the cover 12 is provided with an abrasive pad 9, and the abrasive pad 9 is located between the winding shaft 5 and the inner side wall of the lower shell 11. The abrasive pad 9 can increase the friction between the winding shaft 5 and the lower shell 11, so that the driving force required to rotate the winding shaft 5 is larger, which can further reduce the occurrence of the error of rotating the winding shaft 5.

[0083] Please refer to Figure 3 In some embodiments, the reset member 6 is a torsion spring. When the torsion spring is subjected to an external force and is twisted, the torsion spring stores elastic potential energy. Once the external force disappears, the torsion spring releases the stored energy and twists back to its original shape, thereby driving the winding shaft 5 or the dispensing shaft 3 to return to the original position, and the reset effect is good.

[0084] Please refer to Figure 1 and Figure 7In some embodiments, the lower shell 11 is formed with a winding cavity 111 and a dispensing cavity 112, the lower shell 11 further has an entry port 113 communicating with the winding cavity 111, and an exit port 114 communicating with the dispensing cavity 112, the winding shaft 5 is rotatably installed in the winding cavity 111, the dispensing shaft 3 is rotatably installed in the dispensing cavity 112, the carbon tape 4 on the dispensing shaft 3 extends out of the exit port 114 and into the winding cavity 111 from the entry port 113 and is wound around the winding shaft 5.

[0085] Optionally, the lower shell 11 comprises a first shell part and a second shell part, the first shell part is spaced apart from the first shell part, and the first shell part is formed with the winding cavity 111, the second shell part is formed with the dispensing cavity 112, the first shell part further has the entry port 113 communicating with the winding cavity 111, the second shell part has the exit port 114 communicating with the dispensing cavity 112, and the entry port 113 is disposed towards the exit port 114, more specifically, the entry port 113 and the exit port 114 are both disposed towards the space between the first shell part and the second shell part, so that after the carbon tape 4 on the dispensing shaft 3 extends out of the exit port 114, the carbon tape 4 can extend into the winding cavity 111 from the entry port 113 and be wound around the winding shaft 5, so that the carbon tape 4 can be dispensed while the carbon tape 4 is being dispensed, and after the carbon tape 4 completes printing, the used carbon tape 4 can be conveniently recycled to the winding shaft 5.

[0086] In a second aspect, referring to Figure 8 A printer 100 is provided in the embodiments of the present application, the printer 100 comprises a printer main body 20, a print head module 30 and a carbon tape cartridge 10, the print head module 30 and the carbon tape cartridge 10 are both disposed on the printer main body 20.

[0087] The printer 100 in the present application has the same beneficial effects as the carbon tape cartridge 10 in the present application, which will not be described here.

[0088] In the drawings of the embodiments of the present application, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, and for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0089] The above only describes the preferred embodiments of the present application and does not limit the present application, any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A carbon tape cartridge, characterized by, The application relates to a carbon tape box. The carbon tape box comprises a shell, a delivery shaft, a winding shaft and a reset member. The shell comprises a lower shell and a cover arranged on the lower shell, and an inner side wall of the cover is provided with a positioning protruding structure. The delivery shaft is arranged in the lower shell and rotationally connected with the positioning protruding structure, and is used for rotating in a first direction to deliver a carbon tape. The winding shaft is arranged in the lower shell and rotationally connected with the positioning protruding structure, and is arranged in a spaced mode with the delivery shaft, and is used for rotating in the first direction to wind the carbon tape.

2. The carbon tape cartridge of claim 1, wherein, The reset member is arranged between the positioning protruding structure and the delivery shaft, and is used for providing the delivery shaft or the winding shaft with a pre-tightening force in a second direction, so that the carbon tape between the delivery shaft and the winding shaft is in a taut state, and the second direction is opposite to the first direction.

3. The carbon tape cartridge of claim 2, wherein, The reset member is arranged between the positioning protruding structure and the winding shaft, and is used for providing the delivery shaft or the winding shaft with a pre-tightening force in the first direction, so that the carbon tape between the delivery shaft and the winding shaft is in a taut state.

4. The carbon tape cartridge of claim 2, wherein, The positioning protruding structure comprises first and second protruding parts arranged in a spaced mode, one of the delivery shaft and the winding shaft is rotationally connected with the first protruding part, and the other of the delivery shaft and the winding shaft is rotationally connected with the second protruding part. The delivery shaft is rotationally connected with the first protruding part, one end of the reset member is connected with the first protruding part, the other end of the reset member is provided with a blocking part and extends into the delivery shaft, the inside of the delivery shaft is provided with a limiting rib, and the blocking part is matched with the limiting rib, so that the reset member provides the delivery shaft with the pre-tightening force in the second direction. The first protruding part comprises a first protruding part connected with the inner side wall of the cover, and the first protruding part has an insertion hole, and a limiting strip is arranged in the insertion hole.

5. The carbon tape cartridge of claim 4, wherein, The second protruding part comprises first and second parts connected with each other, a rib is arranged on the peripheral side wall of the first part, the first part is inserted into the insertion hole, and the rib is matched with the limiting strip to limit the rotation of the first part, the second part is inserted into the delivery shaft, and the outer periphery of the second part is sleeved with the reset member, and the reset member is connected with the second part.

6. The carbon tape cartridge of claim 1, wherein, The second protruding part further comprises a partition plate, the first part and the second part are connected through the partition plate, and the partition plate is abutted with the first protruding part.

7. The carbon tape cartridge of claim 6 wherein, The carbon tape box comprises a ratchet mechanism arranged on the winding shaft, and the ratchet mechanism is used for preventing the winding shaft from rotating in the second direction.

8. The carbon tape cartridge of claim 7, wherein, The ratchet mechanism comprises a ratchet wheel connected with one end of the winding shaft, and a pawl movably arranged on the lower shell, and the pawl is matched with the ratchet wheel to prevent the winding shaft from rotating in the second direction. The ratchet mechanism further comprises an elastic connecting member, a middle part of the pawl is rotationally connected with the lower shell, one end of the pawl is connected with the lower shell through the elastic connecting member, and the elastic connecting member is used for driving the other end of the pawl to be matched with the ratchet wheel to prevent the winding shaft from rotating in the second direction.

9. The carbon tape cartridge of claim 1 wherein, The carbon tape cartridge comprises an elastic member compressed between the cover and the first end of the winding shaft, the second end of the winding shaft abuts against the inner side wall of the lower shell, and the first end and the second end of the winding shaft are opposite ends.

10. The carbon tape cartridge of claim 9, wherein, The cover is provided with a first limiting structure, the elastic member is sleeved on the positioning protruding structure and compressed between the first limiting structure and the winding shaft, one end of the elastic member away from the winding shaft is provided with a first anti-rotation structure, the first limiting structure and the first anti-rotation structure are arranged along the circumference of the positioning protruding structure, the first anti-rotation structure cooperates with the first limiting structure to limit the rotation of the elastic member in the first direction.

11. The carbon tape cartridge of claim 10, wherein, The first limiting structure comprises a plurality of blocking strips, the plurality of blocking strips are arranged at intervals along the circumference of the positioning protruding structure, and the first anti-rotation structure is located between two adjacent blocking strips. When the first anti-rotation structure cooperates with one of the two adjacent blocking strips, the rotation of the elastic member in the first direction is limited; when the first anti-rotation structure cooperates with the other of the two adjacent blocking strips, the rotation of the elastic member in a second direction opposite to the first direction is limited.

12. The carbon tape cartridge of claim 9, wherein, An abrasive pad is arranged between the second end of the winding shaft and the inner side wall of the lower shell.

13. The carbon tape cartridge of claim 1 wherein, The reset member is a torsion spring.

14. The carbon tape cartridge of claim 1, wherein, The lower shell forms a winding cavity and a dispensing cavity, the lower shell is further provided with a tape inlet communicating with the winding cavity and a tape outlet communicating with the dispensing cavity, the winding shaft is rotatably installed in the winding cavity, the dispensing shaft is rotatably installed in the dispensing cavity, the carbon tape on the dispensing shaft extends out of the tape outlet and extends into the winding cavity from the tape inlet to be wound on the winding shaft.

15. A printer characterized by comprising: Comprise: A printer body; A print head module arranged on the printer body; The carbon tape cartridge of any one of claims 1-14 is arranged on the printer body.

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