A carbon tape cartridge structure

Abstract

The present application relates to a kind of carbon tape box structures, including box body, recycling cylinder, installation cylinder, limiting component and adjusting elastic piece;Recycling cylinder rotates around its axis and is located in box body, and is equipped with cooperation part;Installation cylinder includes installation shaft core in box body and installation outer cylinder rotationally sleeved outside installation shaft core, the axis direction of installation shaft core is same with the axis direction of recycling cylinder, and it is spaced apart along the radial direction of recycling cylinder;Limiting component includes limiting part in box body, and corresponding to cooperation part;Adjusting elastic piece includes the segment of holding around installation shaft core, and adjusting segment is connected to the segment of holding, the segment of holding can rotate around the axis of installation shaft core under external force, adjusting segment is annularly arranged on the outer periphery of installation shaft core, and the end away from the segment of holding is connected to the inner wall of installation outer cylinder.The present application makes carbon tape have always tight damping feeling, can ensure that there is no wrinkled tape in printing process, and it is convenient to take and place carbon tape box from printer, improve convenience.

Description

Technical Field

[0001] This invention relates to the field of printer technology, and more particularly to a ribbon cartridge structure. Background Technology

[0002] The printing principle of a thermal transfer printer is that the printhead heats up and transfers the dye from the ribbon to the printing medium. This method allows printed tickets to last much longer than thermal paper. When using a thermal transfer ribbon, it needs to be placed in the printer's ribbon cassette. The ribbon is then fed by a gear-driven mechanism that rotates the cassette's take-up shaft.

[0003] For example, patent CN 208180564 U discloses a thermal transfer ribbon cartridge, which internally includes an unloading roller, an impression roller, and a take-up roller. The ribbon roll is movably fitted onto the outside of the unloading roller, and the ribbon on the roll is unwound from the unloading roller, pressed under the impression roller, and then wound up on the take-up roller. However, when an abnormality occurs during the printing process and the ribbon cartridge needs to be removed for repair, the ribbon take-up roller is prone to rotating in reverse, causing the taken-up ribbon to become loose. To ensure printing quality, the user needs to manually rewind the ribbon before reinstalling it in the printer, which is relatively inconvenient. Summary of the Invention

[0004] In view of this, it is necessary to provide a ribbon cartridge structure to solve the technical problem in the prior art where, when an abnormality occurs during the printing process and the ribbon cartridge needs to be removed for inspection, the ribbon recovery roller tends to rotate in reverse, causing the recovered ribbon to become loose. This requires the user to manually rewind the ribbon before reinstalling it into the printer, which is relatively inconvenient.

[0005] This invention provides a carbon ribbon cartridge structure, which includes:

[0006] Box body;

[0007] A recycling cylinder is rotatably disposed within the box body about its axis and is provided with a mating part. The recycling cylinder is used to wind up the used carbon ribbon when rotating in the forward direction and to unwind the wound carbon ribbon when rotating in the reverse direction.

[0008] The mounting cylinder includes a mounting shaft core disposed within the housing and a mounting outer cylinder rotatably sleeved outside the mounting shaft core. The axial direction of the mounting shaft core is the same as that of the recycling cylinder and is radially spaced from the recycling cylinder. The mounting outer cylinder is used to sleeve the carbon ribbon roll to be used, and is used to dispense the carbon ribbon to be used when rotating in the forward direction and to rewind the carbon ribbon when rotating in the reverse direction.

[0009] A limiting component includes a limiting portion disposed within the box body and corresponding to the mating portion, the limiting portion engaging with the mating portion to restrict reverse rotation of the recycling cylinder and allow forward rotation of the recycling cylinder; and,

[0010] The adjusting elastic element includes a clamping section that surrounds the mounting shaft core and an adjusting section connected to the clamping section. The clamping section can rotate around the axis of the mounting shaft core under the drive of an external force. The adjusting section is arranged around the outer periphery of the mounting shaft core, and one end away from the clamping section is connected to the inner wall of the mounting outer cylinder, so that the mounting outer cylinder has a tendency to rotate in the opposite direction when dispensing carbon ribbon.

[0011] Optionally, the clamping section is a clamping spring that surrounds the outer periphery of the mounting shaft. The clamping spring can rotate around the axis of the mounting shaft under the drive of an external force, so as to slide relative to the mounting shaft.

[0012] The adjustment section is an adjustment spring that is spaced around the outer periphery of the mounting shaft. One end of the adjustment spring is connected to the clamping spring, and the other end is connected to the inner wall of the mounting outer cylinder.

[0013] Optionally, the inner wall of the mounting outer cylinder is provided with a stop block, and the rear side wall of the stop block in the positive rotation direction of the mounting outer cylinder is a blocking side wall;

[0014] The end of the adjusting spring away from the clamping spring can abut against the stop sidewall to limit the movement of the adjusting spring relative to the mounting outer cylinder.

[0015] Optionally, multiple stops are provided, and the multiple stops are spaced apart circumferentially along the mounting outer cylinder; and / or,

[0016] The stop block extends along the axis of the mounting outer cylinder; and / or,

[0017] The blocking sidewall is inclined towards the opposite side from the inner end to the outer end.

[0018] Optionally, the mating part is a plurality of ratchet teeth arranged around the outer periphery of the recovery cylinder, and the plurality of ratchet teeth are located at one end of the recovery cylinder in its axial direction;

[0019] The limiting part includes a locking arm that engages with the ratchet. The locking arm is movably disposed within the box body, having a limiting position inserted between two adjacent ratchet teeth and a releasing position disengaged from the ratchet teeth. When the locking arm is in the limiting position, it allows the recycling cylinder to rotate forward and restricts the recycling cylinder from rotating in the reverse direction.

[0020] Optionally, the housing includes an outer shell, a first outer cylinder, and a second outer cylinder. The first outer cylinder and the second outer cylinder have the same axial direction and are arranged radially apart. One end of the first outer cylinder and the second outer cylinder are respectively connected to the inner cavity of the outer shell and are located on the same side of the outer shell. An opening for passing carbon ribbon is respectively opened on the opposite side of the first outer cylinder and the second outer cylinder.

[0021] The mounting cylinder is disposed inside the first outer cylinder, the recovery cylinder is disposed inside the second outer cylinder, and the ratchet is located at the end of the recovery cylinder near the outer shell;

[0022] The limiting part also includes a rotating arm that is connected at an angle to the locking arm. The rotating arm is rotatably disposed on the inner wall of the outer shell about the radial direction of the recycling cylinder and is located on the inner wall of the outer shell near the recycling cylinder, so that when rotating, it drives the locking arm to move between the limiting position and the releasing position.

[0023] Optionally, the limiting component further includes an elastic reset member disposed between the inner wall of the housing and the rotating arm, the elastic reset member being used to drive the rotating arm to move, thereby causing the locking arm to reset from the unlocked position to the limiting position.

[0024] Optionally, the inner wall of the outer casing is provided with a clearance opening corresponding to the rotating arm, and the clearance opening is located on the inner wall of the outer casing on the side close to the recycling cylinder;

[0025] The rotating arm has a driving protrusion protruding towards the clearance opening, and the driving protrusion extends from inside the housing to outside the clearance opening.

[0026] Optionally, the limiting component further includes a mounting seat protruding from the inner wall of the housing, the mounting seat being located on the inner wall of the housing near the recycling cylinder and corresponding to the rotating arm;

[0027] One of the rotating arm and the mounting base is provided with a rotating shaft, and the other is provided with a shaft hole that mates with the rotating shaft. The rotating shaft and the shaft hole extend radially along the recovery cylinder.

[0028] Optionally, the limiting component further includes two baffles protruding from the inner wall of the housing, the two baffles being sandwiched between opposite sides of the rotating arm to restrict the axial movement of the rotating arm along the rotating shaft.

[0029] Compared with the prior art, in the ribbon cartridge structure provided by the present invention, the limiting part and the mating part cooperate to ensure that the recycling cylinder can only rotate in the forward direction to reel in the used ribbon, and cannot rotate in the reverse direction, thus preventing the ribbon from being loosened when the recycling cylinder rotates in the reverse direction. At the same time, when the recycling cylinder reels in the ribbon, it will synchronously drive the mounting outer cylinder to rotate in the forward direction, so that the mounting outer cylinder can dispense the ribbon. At this time, the clamping section rotates around the axis of the mounting shaft core to slide relative to the mounting shaft core, which does not affect the normal ribbon dispensing of the mounting outer cylinder. Moreover, the clamping section and the adjusting section accumulate elastic potential energy when the mounting outer cylinder rotates in the forward direction, so that the mounting outer cylinder has a tendency to rotate in the reverse direction.

[0030] In this way, without affecting the normal winding of the ribbon in the recycling bin, the ribbon between the mounting outer cylinder and the recycling bin always maintains a taut, damped feel, ensuring that the ribbon does not wrinkle during printing. Even when the cartridge is removed from the printer, the ribbon remains taut, effectively preventing it from loosening. Furthermore, when the print head retracts from the printing position, the clamping and adjusting sections drive the mounting outer cylinder to rotate in the opposite direction, allowing it to rewind the ribbon that was lifted by the print head between itself and the recycling bin. This facilitates the removal and insertion of the ribbon cartridge from the printer, improving convenience.

[0031] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0033] Figure 1 This is a schematic diagram of an embodiment of the carbon ribbon box structure provided by the present invention;

[0034] Figure 2 A schematic diagram of the structure of an embodiment of the printer provided by the present invention;

[0035] Figure 3 for Figure 2 A cross-sectional diagram of a printer;

[0036] Figure 4 for Figure 3 A schematic diagram of the cross-section of the centrally mounted cylinder;

[0037] Figure 5 for Figure 4 A schematic diagram of the structure of the adjusting elastic element and the mounting shaft;

[0038] Figure 6 for Figure 5 Schematic diagram of the structure of the adjusting elastic element;

[0039] Figure 7 for Figure 4 A schematic diagram of the structure in which the outer cylinder is installed;

[0040] Figure 8 for Figure 1 A schematic diagram of the medium carbon fiber box structure (cover not shown) from another angle;

[0041] Figure 9 for Figure 8 Enlarged view of point A in the middle;

[0042] Figure 10 for Figure 8 Schematic diagram of the middle limiting part;

[0043] Figure 11 for Figure 8 Schematic diagram of the structure of the middle recovery cylinder;

[0044] Figure 12 for Figure 8 Enlarged view of point B in the middle;

[0045] Figure 13 for Figure 1 Enlarged view of point C in the middle;

[0046] Figure 14 for Figure 8 A schematic diagram of the structure of the middle box (the cover is not shown);

[0047] Figure 15 for Figure 14 Enlarged view of point D in the middle;

[0048] Figure 16 for Figure 1 Schematic diagram of the middle cover structure;

[0049] Figure 17 for Figure 2 Schematic diagram of the central drive unit;

[0050] Figure 18 for Figure 11 A schematic diagram of the cross-section of the recovery cylinder;

[0051] Figure 19 for Figure 11 A schematic diagram of the structure of the recycled shaft core;

[0052] Figure 20 for Figure 11 A schematic diagram of the structure of the outer cylinder for recycling.

[0053] Explanation of reference numerals in the attached figures:

[0054] 100-Carbon ribbon box structure, 1-Box body, 11-Outer shell, 11a-Allowing opening, 111-Base, 111a-Slot, 112-Cover, 1121-Main body, 1122-Extension, 1123-Protrusion, 12-First outer cylinder, 13-Second outer cylinder, 2-Recovery cylinder, 21-Matching part, 211-Ratchet, 22-Recovery gear, 23-Recovery shaft, 231-Limiting block, 24-Recovery outer cylinder, 241-Clamping block, 3-Mounting cylinder, 31-Mounting shaft, 311-Guide ring, 32 - Install outer cylinder, 33-stop block, 331-stop side wall, 4-limiting component, 41-limiting part, 411-clamping arm, 412-rotating arm, 413-drive protrusion, 414-rotating shaft, 42-elastic reset component, 43-mounting seat, 43a-shaft hole, 44-baffle, 5-adjusting elastic component, 51-clamping section, 52-adjusting section, 6-paper feeding roller, 61-paper feeding gear, 7-drive part, 71-drive motor, 711-drive gear, 72-transmission gear, 73-transition gear, 8-housing shell. Detailed Implementation

[0055] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0056] Please see Figures 1 to 9 The ribbon cartridge structure 100 includes a cartridge body 1, a recycling cylinder 2, a mounting cylinder 3, a limiting component 4, and an adjusting elastic element 5. The recycling cylinder 2 is rotatably disposed within the cartridge body 1 about its axis and is provided with a mating part 21. The recycling cylinder 2 is used to wind up the used ribbon when rotating in the forward direction and to unwind the wound ribbon when rotating in the reverse direction. The mounting cylinder 3 includes a mounting shaft 31 disposed within the cartridge body 1 and a mounting outer cylinder 32 rotatably sleeved outside the mounting shaft 31. The axial direction of the mounting shaft 31 is the same as the axial direction of the recycling cylinder 2 and is radially spaced from the recycling cylinder 2. The mounting outer cylinder 32 is used to hold the ribbon roll to be used and to dispense the ribbon to be used when rotating in the forward direction. And it is used to wind up the carbon ribbon when rotating in the reverse direction; the limiting component 4 includes a limiting part 41 disposed inside the housing 1 and corresponding to the mating part 21. The limiting part 41 can cooperate with the mating part 21 to limit the reverse rotation of the recycling cylinder 2 and allow the recycling cylinder 2 to rotate in the forward direction; the adjusting elastic member 5 includes a clamping section 51 that surrounds the mounting shaft core 31 and an adjusting section 52 connected to the clamping section 51. The clamping section 51 can rotate around the axis of the mounting shaft core 31 under the drive of external force. The adjusting section 52 is disposed around the outer periphery of the mounting shaft core 31, and one end away from the clamping section 51 is connected to the inner wall of the mounting outer cylinder 32, so that the mounting outer cylinder 32 has a tendency to rotate in the reverse direction when dispensing carbon ribbon.

[0057] In the ribbon cartridge structure 100 provided by the present invention, the limiting part 41 cooperates with the mating part 21, so that the recycling cylinder 2 can only rotate in the forward direction to reel in the used ribbon, and cannot rotate in the reverse direction, thus preventing the ribbon from being loosened by the reverse rotation of the recycling cylinder 2; at the same time, when the recycling cylinder 2 is reeling in the ribbon, it will synchronously drive the mounting outer cylinder 32 to rotate in the forward direction, so that the mounting outer cylinder 32 can dispense the ribbon; at this time, the clamping section 51 rotates around the axis of the mounting shaft core 31 to slide relative to the mounting shaft core 31, without affecting the normal dispensing of the ribbon by the mounting outer cylinder 32, and the clamping section 51 and the adjusting section 52 accumulate elastic potential energy when the mounting outer cylinder 32 rotates in the forward direction, so that the mounting outer cylinder 32 has a tendency to rotate in the reverse direction.

[0058] In this way, without affecting the normal winding of the ribbon in the recycling cylinder 2, the ribbon between the mounting outer cylinder 32 and the recycling cylinder 2 always has a taut, damped feel, ensuring that the ribbon does not wrinkle during printing; and even when the cartridge 1 is removed from the printer, the ribbon remains taut, effectively preventing the ribbon from loosening. Furthermore, when the print head retracts from the printing position, the clamping section 51 and the adjusting section 52 drive the mounting outer cylinder 32 to rotate in the opposite direction, allowing the mounting outer cylinder 32 to rewind the ribbon that was lifted by the print head between it and the recycling cylinder 2, thus facilitating the removal and insertion of the ribbon cartridge from the printer and improving convenience.

[0059] It should be noted that the recycling cylinder 2 and the mounting outer cylinder 32 have two directions of rotation, one forward and one reverse, when rotating around their respective axes. In this design, the forward rotation direction of the recycling cylinder 2 is the direction of rotation when it winds up the used carbon ribbon, and its reverse rotation direction is the direction of rotation when it unwinds the used carbon ribbon. Correspondingly, the forward rotation direction of the mounting outer cylinder 32 is the direction of rotation when it dispenses carbon ribbon, and its reverse rotation direction is the direction of rotation when it winds up the carbon ribbon. For details, please refer to [link to relevant documentation]. Figure 3 In this embodiment, the forward rotation direction of the recycling cylinder 2 and the mounting outer cylinder 32 is counterclockwise.

[0060] Furthermore, in this embodiment, both the clamping section 51 and the adjusting section 52 are made of elastic material. The adjusting section 52 gradually expands as the outer cylinder 32 dispenses the carbon ribbon, thereby causing the clamping section 51 to expand, reducing the friction between the clamping section 51 and the mounting shaft 31. Specifically, the clamping section 51 undergoes two processes during expansion: an initial state and an equilibrium state. In the initial state, the rewinding force of the clamping section 51 gradually increases from 0 to F1; and in the equilibrium state, the clamping section 51 releases the mounting shaft 31, reducing the friction between the clamping section 51 and the mounting shaft 31, and the rewinding force equals the difference between the supply end elastic force and F1.

[0061] Furthermore, the clamping section 51 is a clamping spring that surrounds the outer circumference of the mounting shaft 31. Under external force, the clamping spring can rotate around the axis of the mounting shaft 31 to slide relative to it. The adjusting section 52 is an adjusting spring spaced around the outer circumference of the mounting shaft 31. One end of the adjusting spring is connected to the clamping spring, and the other end is connected to the inner wall of the mounting outer cylinder 32. In this design, the automatic rewinding of the carbon ribbon is achieved through the cooperation of the adjusting spring and the clamping spring. The operation is relatively simple, and the structure is compact and simple, saving costs. Specifically, the inner diameter of the clamping spring is smaller than the inner diameter of the adjusting spring to facilitate the rotation of the mounting outer cylinder 32 relative to the mounting shaft 31.

[0062] Furthermore, a stop 33 is protruding from the inner wall of the mounting outer cylinder 32. The rear side wall of the stop 33 in the forward rotation direction of the mounting outer cylinder 32 is a stop side wall 331. The end of the adjusting spring away from the clamping spring can abut against the stop side wall 331 to limit the movement of the adjusting spring relative to the mounting outer cylinder 32. In this design, when the mounting outer cylinder 32 rotates to deliver the carbon ribbon, the end of the adjusting spring away from the clamping spring abuts against the stop side wall 331 to prevent the adjusting spring from sliding relative to the mounting outer cylinder 32, thereby forcing the adjusting spring to expand, which in turn drives the clamping spring to expand.

[0063] Furthermore, multiple stops 33 are provided, and these stops 33 are spaced apart along the circumference of the mounting outer cylinder 32. In this embodiment, multiple stops 33 are provided. In this embodiment, multiple stops 33 are spaced apart to facilitate the engagement of the adjusting spring with any of the stop sidewalls 331, thereby facilitating assembly and improving the strength of the mounting outer cylinder 32. At the same time, the adjustment rotation stroke of the adjusting spring during installation is shortened, making assembly more convenient.

[0064] To prevent the clamping spring and adjusting spring from moving along the axis of the mounting shaft 31 and disengaging from the stop sidewall 331, in this embodiment, the stop block 33 extends along the axis of the mounting outer cylinder 32. Thus, even if the clamping spring and adjusting spring move along the axis of the mounting shaft 31, the end of the adjusting spring furthest from the clamping spring will always remain in contact with the stop sidewall 331.

[0065] Specifically, the stop sidewall 331 is inclined towards the opposite side from its inner end to its outer end. In this embodiment, the stop block 33 is provided in the form of a dovetail joint to further prevent the adjusting spring from going over the stop sidewall 331, so that the stop block 33 can stably cooperate with the adjusting spring. Correspondingly, the end of the adjusting spring that abuts against the stop sidewall 331 includes a connecting section extending radially along the mounting outer cylinder 32, and an extension section connected to the connecting section and extending along the axial direction of the mounting outer cylinder 32.

[0066] Further, please refer to Figures 9 to 11The mating part 21 consists of multiple ratchet teeth 211 arranged around the outer periphery of the recycling cylinder 2, with each ratchet tooth 211 located at one end of the recycling cylinder 2 along its axial direction. The limiting part 41 includes a locking arm 411 that engages with the ratchet teeth 211. The locking arm 411 is movably disposed within the housing 1, having a limiting position inserted between two adjacent ratchet teeth 211 and a releasing position disengaged from the ratchet teeth 211. When the locking arm 411 is in the limiting position, it allows the recycling cylinder 2 to rotate forward and restricts its reverse rotation. In this embodiment, the locking arm 411 has a limiting position and a releasing position. When the locking arm 411 is in the limiting position, it is engaged between two corresponding adjacent ratchet teeth 211, allowing the recycling cylinder 2 to rotate only forward to wind up the carbon ribbon, and preventing it from rotating backward. Thus, with the cooperation of the adjusting elastic element 5, the carbon ribbon can be taut.

[0067] When the clamping arm 411 is in the unrestricted position, it disengages from the ratchet 211, allowing the recycling cylinder 2 to rotate in the reverse direction. Thus, if a printer malfunctions and unused ribbon gets wound onto the recycling cylinder 2, the ribbon cartridge can be removed from the printer, and the clamping arm 411 can be moved to the unrestricted position, disengaging from the ratchet 211, allowing the recycling cylinder 2 to rotate in the reverse direction. Simultaneously, the mounting outer cylinder 32 rotates in the reverse direction, rewinding the unused ribbon from the recycling cylinder 2 onto the mounting outer cylinder 32. After the mounting outer cylinder 32 has rewound the unused ribbon, the clamping arm 411 is moved back to the limit position, thereby avoiding ribbon waste, improving ribbon utilization, and offering a simple, reliable, and cost-effective structure.

[0068] Furthermore, the box body 1 includes an outer shell 11, a first outer cylinder 12, and a second outer cylinder 13. The first outer cylinder 12 and the second outer cylinder 13 are aligned along the same axial direction and are arranged radially apart. One end of the first outer cylinder 12 and the second outer cylinder 13 are respectively connected to the inner cavity of the outer shell 11 and located on the same side of the outer shell 11. The first outer cylinder 12 and the second outer cylinder 13 have openings on opposite sides for passing through carbon ribbon. The mounting cylinder 3 is disposed inside the first outer cylinder 12, and the recycling cylinder 2 is disposed inside the second outer cylinder 13. The ratchet 211 is located at the end of the recycling cylinder 2 near the outer shell 11. The limiting part 41 also includes a rotating arm 412 that is angled to the locking arm 411. The rotating arm 412 is rotatably disposed on the inner wall of the outer shell 11 about the radial direction of the recycling cylinder 2 and is located on the inner wall of the outer shell 11 near the recycling cylinder 2, so that when rotating, it drives the locking arm 411 to move between the limiting position and the releasing position.

[0069] In this design, the arrangement of the first outer cylinder 12 and the second outer cylinder 13 reduces the space occupied by the ribbon cartridge in the printer, improving the printer's space utilization. Simultaneously, the rotation of the rotating arm 412 drives the locking arm 411 to move, fully utilizing the space in the outer casing 11 along the arrangement of the first outer cylinder 12 and the second outer cylinder 13, further improving the space utilization of the outer casing 11 and making the overall structure more compact. Specifically, when the rotating arm 412 rotates, it can drive the locking arm 411 into the second outer cylinder 13 to engage between two adjacent ratchet teeth 211; it can also drive the locking arm 411 out of the ratchet teeth 211, allowing the recycling cylinder 2 to rotate in both directions.

[0070] Specifically, please refer to Figure 12 The limiting component 4 also includes an elastic reset member 42 disposed between the inner wall of the housing 11 and the rotating arm 412. The elastic reset member 42 is used to drive the rotating arm 412 to move, thereby causing the locking arm 411 to reset from its self-release position to the limiting position. Thus, after a printer malfunctions and unused ribbon is reset, the rotating arm 412, driven by the elastic reset member 42, can drive the locking arm 411 to reset from its self-release position to the limiting position without manual intervention, improving convenience. In this design, the elastic reset member 42 is a spring.

[0071] Specifically, please refer to Figures 13 to 15 The inner wall of the outer casing 11 has a clearance opening 11a corresponding to the rotating arm 412. The clearance opening 11a is located on the inner wall of the outer casing 11 near the recycling cylinder 2. The rotating arm 412 has a driving protrusion 413 protruding from the clearance opening 11a. The driving protrusion 413 extends from inside the outer casing 11 and out of the clearance opening 11a. In this solution, when it is necessary to drive the locking arm 411 to the release position, the user can press the driving protrusion 413 located outside the clearance opening 11a, so that the driving protrusion 413 moves into the outer casing 11, thereby causing the rotating arm 412 to rotate accordingly, so as to drive the locking arm 411 from the limit position to the release position. The structure is simple and compact, easy for users to operate, and improves the user experience.

[0072] Furthermore, the limiting component 4 also includes a mounting base 43 protruding from the inner wall of the outer casing 11. The mounting base 43 is located on the inner wall of the outer casing 11 near the recovery cylinder 2 and corresponds to the rotating arm 412. One of the rotating arm 412 and the mounting base 43 is provided with a rotating shaft, and the other is provided with a shaft hole that mates with the rotating shaft. The rotating shaft and the shaft hole extend radially along the recovery cylinder 2. In this embodiment, the rotation of the rotating arm 412 is achieved through the mating of the rotating shaft and the shaft hole, resulting in a simple and reliable structure. Specifically, in this solution, two mounting bases 43 are provided opposite each other, located on opposite sides of the rotating arm 412. Each mounting base 43 is provided with a shaft hole 43a extending radially along the recovery cylinder 2. The corresponding rotating arm 412 is provided with a rotating shaft 414, which passes through the shaft hole 43a to achieve the rotation of the rotating arm 412.

[0073] Specifically, the limiting assembly 4 also includes two baffles 44 protruding from the inner wall of the housing 11. The two baffles 44 are sandwiched between opposite sides of the rotating arm 412 to restrict the axial movement of the rotating arm 412 along the rotating shaft 414. In this way, by restricting the axial movement of the rotating arm 412 along the rotating shaft 414 by the two baffles 44, the radial movement of the locking arm 411 along the recovery cylinder 2 is prevented, making the engagement between the locking arm 411 and the ratchet 211 more stable.

[0074] Further, please refer to Figure 14 and Figure 16 The outer casing 11 includes a base 111 and a cover 112 detachably mounted on the base 111. The cover 112 and the base 111 together form an inner cavity. A first outer cylinder 12 and a second outer cylinder 13 are connected to the base 111, and a rotating arm 412 is rotatably mounted on the inner wall of the base 111. In this embodiment, the outer casing 11 is configured to have a detachably connected base 111 and cover 112, and the first outer cylinder 12 and the second outer cylinder 13 are respectively connected to the base 111 and communicate with the inner cavity enclosed by the base 111 and the cover 112. The rotating arm 412 is mounted on the inner wall of the base 111. This allows the user to easily check if there is an abnormality in the fit between the limiting part 41 and the mating part 21.

[0075] Furthermore, the outer wall of the base 111 is recessed with a slot 111a; the cover 112 includes a main body 1121 and an extension 1122 surrounding one side of the main body 1121. The inner side of the extension 1122 is provided with a protrusion 1123 corresponding to the slot 111a. When the cover 112 is placed on the base 111, the protrusion 1123 can be engaged in the slot 111a, so that the cover 112 can be detachably placed on the base 111. In this embodiment, when the cover 112 is placed on the base 111, the end of the base 111 away from the first cylinder and the second cylinder extends into the extension 1122, and the protrusion 1123 is engaged in the slot 111a, thus achieving the covering of the cover 112 on the base 111; when it is necessary to remove the cover 112, the user can apply external force to drive the protrusion 1123 out of the slot 111a, which is simple and reliable.

[0076] Furthermore, a guide ring 311 is provided around the outer periphery of the mounting shaft 31, and the end of the guide ring 311 away from the mounting shaft 31 slides against the inner wall of the mounting outer cylinder 32. In this design, when the mounting outer cylinder 32 rotates around the axis of the mounting shaft 31, its inner wall slides in connection with the outer periphery of the guide ring 311, preventing the axis of the mounting outer cylinder 32 from deviating from the axis of the mounting shaft 31, thus making the rotation of the mounting outer cylinder 32 smoother and more stable.

[0077] In addition, please see Figure 2 and Figure 17 The present invention also provides a printer, which includes the ribbon cartridge structure 100 described in any of the above-mentioned claims. Further, the printer includes a paper feed roller 6 and a drive unit 7 disposed in its housing 8. The paper feed roller 6 rotates around its axis, and its axis direction is the same as the axis direction of the recovery cylinder 2. One end of the paper feed roller 6 is provided with a paper feed gear 61. The drive unit 7 is drivenly connected to the recovery cylinder 2 to drive the recovery cylinder 2 to rotate. Specifically, the recovery cylinder 2 is provided with a recovery gear 22 corresponding to the paper feed gear 61. The drive unit 7 includes a drive motor 71 and a transmission gear 72 meshing between the paper feed gear 61 and the recovery gear 22. The output shaft of the drive motor 71 is provided with a drive gear 711, and a transition gear 73 meshes between the drive gear 711 and the paper feed gear 61.

[0078] In this embodiment, when the drive motor 71 is working, the drive gear 711 on its output shaft sequentially drives the transition gear 73, the paper feed gear 61, the transmission gear 72, and the take-up gear 22. Thus, a single drive motor 71 simultaneously drives the paper feed roller 6 and the take-up cylinder 2 to rotate, saving costs and making the overall structure more compact with higher transmission accuracy. Furthermore, it ensures that the paper feed roller 6 and the ribbon rotate synchronously, preventing misalignment and stretching during printing. It should be noted that in this embodiment, there are two transition gears 73, and each transition gear 73 and transmission gear 72 is respectively equipped with a main gear and a secondary gear to realize the rotation of the paper feed roller 6 and the take-up cylinder 2. In addition, in this embodiment, the housing 1, the paper feed roller 6, and the drive unit 7 are respectively located on the printer housing 8.

[0079] Furthermore, please refer to Figures 18 to 20 The recycling cylinder 2 includes a recycling shaft core 23 and a recycling outer cylinder 24 rotatably sleeved outside the recycling shaft core 23. The recycling shaft core 23 is provided with multiple limiting blocks 231 spaced circumferentially. The inner wall of the recycling outer cylinder 24 is provided with a locking block 241 corresponding to the limiting blocks 231, and the locking block 241 is engaged between two adjacent limiting blocks 231. A recycling gear 22 is located at one end of the recycling shaft core 23. In this embodiment, the recycling cylinder 2 is configured as a recycling shaft core 23 and a recycling outer cylinder 24. This allows the recycling outer cylinder 24 to be easily removed from the recycling shaft core 23 while simultaneously winding the carbon tape, thanks to the cooperation of the limiting blocks 231 and the locking blocks 241. This facilitates the replacement of the recycling outer cylinder 24 and improves convenience.

[0080] It should be noted that since the outer recycle cylinder 24 is installed blindly inside the printer, to prevent the front end of the outer recycle cylinder 24 from tilting downwards due to its own weight, resulting in misalignment with the recycle shaft core 23, a guide angle is provided at the end of the recycle shaft core 23 that extends into the outer recycle cylinder 24 in this embodiment. When the outer recycle cylinder 24 aligns with the recycle shaft core 23, the guide angle can guide and correct the outer recycle cylinder 24, thus guiding it to align properly with the recycle shaft core 23.

[0081] Specifically, multiple locking blocks 241 are provided, and the multiple locking blocks 241 are arranged at intervals along the circumference of the outer recovery cylinder 24. It should be noted that, in one embodiment, a locking gap is formed between two adjacent limiting blocks 231, and the multiple locking blocks 241 are arranged one-to-one with the multiple locking gaps, so as to make the cooperation between the outer recovery cylinder 24 and the recovery shaft core 23 more stable. In this embodiment, there are three locking blocks 241 and six locking gaps, and the three locking blocks 241 are locked in the corresponding locking gaps at intervals.

[0082] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A carbon ribbon box structure, characterized in that, It includes: Box body; A recycling cylinder is rotatably disposed within the box body about its axis and is provided with a mating part. The recycling cylinder is used to wind up the used carbon ribbon when rotating in the forward direction and to unwind the wound carbon ribbon when rotating in the reverse direction. The mounting cylinder includes a mounting shaft core disposed within the housing and a mounting outer cylinder rotatably sleeved outside the mounting shaft core. The axial direction of the mounting shaft core is the same as that of the recycling cylinder and is radially spaced from the recycling cylinder. The mounting outer cylinder is used to sleeve the carbon ribbon roll to be used, and is used to dispense the carbon ribbon to be used when rotating in the forward direction and to rewind the carbon ribbon when rotating in the reverse direction. The limiting component includes a limiting part disposed inside the box and corresponding to the mating part. The limiting part can cooperate with the mating part to limit the reverse rotation of the recycling cylinder and enable the recycling cylinder to rotate forward. as well as, The adjusting elastic element includes a clamping section that surrounds the mounting shaft core and an adjusting section connected to the clamping section. The clamping section can rotate around the axis of the mounting shaft core under the drive of an external force. The adjusting section is arranged around the outer periphery of the mounting shaft core, and one end away from the clamping section is connected to the inner wall of the mounting outer cylinder, so that the mounting outer cylinder has a tendency to rotate in the opposite direction when dispensing carbon ribbon.

2. The carbon ribbon box structure according to claim 1, characterized in that, The clamping section is a clamping spring that surrounds the outer periphery of the mounting shaft. The clamping spring can rotate around the axis of the mounting shaft under the drive of an external force, so as to slide relative to the mounting shaft. The adjustment section is an adjustment spring that is spaced around the outer periphery of the mounting shaft. One end of the adjustment spring is connected to the clamping spring, and the other end is connected to the inner wall of the mounting outer cylinder.

3. The carbon ribbon box structure according to claim 2, characterized in that, The inner wall of the mounting outer cylinder is provided with a stop block, and the rear side wall of the stop block in the positive rotation direction of the mounting outer cylinder is a stop side wall; The end of the adjusting spring away from the clamping spring can abut against the stop sidewall to limit the movement of the adjusting spring relative to the mounting outer cylinder.

4. The carbon ribbon box structure according to claim 3, characterized in that, The stop blocks are provided in multiple portions, and the multiple stop blocks are arranged at intervals along the circumference of the mounting outer cylinder; and / or, The stop block extends along the axis of the mounting outer cylinder; and / or, The blocking sidewall is inclined towards the opposite side from the inner end to the outer end.

5. The carbon ribbon box structure according to claim 1, characterized in that, The mating part consists of a plurality of ratchet teeth arranged around the outer periphery of the recovery cylinder, with the plurality of ratchet teeth located at one end of the recovery cylinder in its axial direction; The limiting part includes a locking arm that engages with the ratchet. The locking arm is movably disposed within the box body, having a limiting position inserted between two adjacent ratchet teeth and a releasing position disengaged from the ratchet teeth. When the locking arm is in the limiting position, it allows the recycling cylinder to rotate forward and restricts the recycling cylinder from rotating in the reverse direction.

6. The carbon ribbon box structure according to claim 5, characterized in that, The box body includes an outer shell, a first outer cylinder and a second outer cylinder. The first outer cylinder and the second outer cylinder are arranged with the same axial direction and are radially spaced. One end of the first outer cylinder and the second outer cylinder are respectively connected to the inner cavity of the outer shell and are located on the same side of the outer shell. The first outer cylinder and the second outer cylinder are respectively provided with openings on opposite sides for carbon ribbon to pass through. The mounting cylinder is disposed inside the first outer cylinder, the recovery cylinder is disposed inside the second outer cylinder, and the ratchet is located at the end of the recovery cylinder near the outer shell; The limiting part also includes a rotating arm that is connected at an angle to the locking arm. The rotating arm is rotatably disposed on the inner wall of the outer shell about the radial direction of the recycling cylinder and is located on the inner wall of the outer shell near the recycling cylinder, so that when rotating, it drives the locking arm to move between the limiting position and the releasing position.

7. The carbon ribbon box structure according to claim 6, characterized in that, The limiting component further includes an elastic reset member disposed between the inner wall of the housing and the rotating arm. The elastic reset member is used to drive the rotating arm to move, so as to drive the locking arm to reset from the unlocking position to the limiting position.

8. The carbon ribbon box structure according to claim 7, characterized in that, The inner wall of the outer shell is provided with a clearance opening corresponding to the rotating arm, and the clearance opening is located on the inner wall of the outer shell on the side close to the recycling cylinder; The rotating arm has a driving protrusion protruding towards the clearance opening, and the driving protrusion extends from inside the housing to outside the clearance opening.

9. The carbon ribbon box structure according to claim 6, characterized in that, The limiting component also includes a mounting seat protruding from the inner wall of the housing, the mounting seat being located on the inner wall of the housing near the recycling cylinder and corresponding to the rotating arm; One of the rotating arm and the mounting base is provided with a rotating shaft, and the other is provided with a shaft hole that mates with the rotating shaft. The rotating shaft and the shaft hole extend radially along the recovery cylinder.

10. The carbon ribbon box structure according to claim 9, characterized in that, The limiting component also includes two baffles protruding from the inner wall of the housing, the two baffles being sandwiched between opposite sides of the rotating arm to restrict the axial movement of the rotating arm along the shaft.

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