CN218966514U - Carbon ribbon box and thermal transfer printer - Google Patents

Abstract

The utility model relates to a carbon ribbon box and a thermal transfer printer, wherein the carbon ribbon box comprises a box body, a carbon ribbon winding and unwinding structure and a limiting structure; the carbon belt winding and unwinding structure comprises a mounting cylinder and a recovery cylinder which have the same axial direction, wherein the mounting cylinder and the recovery cylinder are arranged in the box body along the radial direction at intervals, the mounting cylinder and the recovery cylinder can rotate around the respective axial lines, the recovery cylinder has winding directions and loosening directions which are opposite in direction when rotating, and the recovery cylinder is provided with a matching part; the limit structure comprises a limit part movably arranged in the box body, the limit part corresponds to the matching part, so that the limit structure has a limit position matched with the matching part and a release position separated from the matching part, and the limit part is used for limiting the recovery cylinder to rotate along the loosening direction and enabling the recovery cylinder to rotate along the rolling direction when being positioned at the limit position. According to the scheme, the loosening condition of the recovered carbon tape can be avoided, the printing quality is improved, meanwhile, the waste of the carbon tape can be avoided, and the utilization rate of the carbon tape is improved.

Description

Carbon ribbon box and thermal transfer printer

Technical Field

The utility model relates to the technical field of printers, in particular to a carbon ribbon box and a thermal transfer printer.

Background

The printing principle of the thermal transfer printer is that after the printing head is heated, the dye on the carbon tape is transferred to the printing medium, and the mode ensures that the preservation time of the printing ticket paper is far longer than that of the thermal printing paper. When the thermal transfer printing carbon tape is used, the thermal transfer printing carbon tape needs to be placed in a carbon tape box of a printer, so that a recovery shaft of the carbon tape box is driven to rotate through gear transmission in the thermal transfer printing printer, and further tape feeding is achieved.

For example, patent CN 208180564U discloses a thermal transfer carbon ribbon cartridge, in which a discharging roller, an embossing roller and a recovery roller are disposed, a carbon ribbon roll is movably sleeved on the outer side of the discharging roller, the carbon ribbon on the carbon ribbon roll is unwound from the discharging roller, and is rolled up on the recovery roller after being embossed under the embossing roller. However, when the printing process is abnormal and the carbon tape box needs to be taken out for maintenance, the carbon tape recovery roller is easy to reversely rotate, so that the recovered carbon tape is loose, uneven winding is caused, and the follow-up normal printing is adversely affected.

Disclosure of Invention

In view of the foregoing, it is necessary to provide a carbon ribbon cartridge and a thermal transfer printer for solving the technical problems that in the prior art, when the printing process is abnormal and the carbon ribbon cartridge needs to be taken out for maintenance, the carbon ribbon recovery roller is easy to reversely rotate, so that the recovered carbon ribbon is loose, the winding is uneven, and adverse effects are caused on the subsequent normal printing.

The present utility model provides a carbon ribbon cartridge comprising:

a case body;

the carbon tape winding and unwinding structure comprises an installation cylinder and a recovery cylinder, wherein the installation cylinder and the recovery cylinder are arranged in the box body at intervals along the radial direction of the installation cylinder, the installation cylinder and the recovery cylinder can rotate around the respective axes, the installation cylinder is used for sleeving a carbon tape roll to be used, the recovery cylinder is provided with a winding direction and a unwinding direction which are opposite in direction when rotating, the recovery cylinder is used for winding the carbon tape from the installation cylinder when rotating along the winding direction, and is used for unwinding the wound carbon tape when rotating along the unwinding direction, and the recovery cylinder is provided with a matching part; the method comprises the steps of,

the limit structure comprises a limit part movably arranged in the box body, wherein the limit part corresponds to the matching part, is provided with a limit position matched with the matching part and a release position separated from the matching part, and is used for limiting the recovery cylinder to rotate along the releasing direction and enabling the recovery cylinder to rotate along the winding direction when the limit part is positioned at the limit position.

Optionally, the matching part is a plurality of ratchets which are annularly arranged on the periphery of the recovery cylinder, and the ratchets are positioned at one end of the recovery cylinder in the axial direction;

the limiting part comprises a clamping arm matched with the ratchets, the clamping arm is movably arranged in the box body, and is inserted between two adjacent ratchets when in a limiting position, so that the recovery cylinder can rotate along the winding direction and is limited to rotate along the releasing direction, and the clamping arm is far away from the ratchets when in the releasing position.

Optionally, the box body comprises a shell, a first outer cylinder and a second outer cylinder, the axial directions of the first outer cylinder and the second outer cylinder are the same, the first outer cylinder and the second outer cylinder are arranged at intervals along the radial direction of the first outer cylinder, one ends of the first outer cylinder and the second outer cylinder are respectively communicated with the inner cavity of the shell and are positioned on the same side of the shell, and openings for the carbon tape to pass through are respectively formed in one side of the first outer cylinder, which is opposite to the second outer cylinder;

the installation cylinder is arranged in the first outer cylinder, the recovery cylinder is arranged in the second outer cylinder, and the ratchet is positioned at one end of the recovery cylinder, which is close to the shell;

the limiting part also comprises a rotating arm connected with the clamping arm in an included angle, the rotating arm is arranged on the inner wall of the shell in a radial rotating manner around the recovery cylinder and is positioned on one side, close to the recovery cylinder, of the inner wall of the shell, and the clamping arm is driven to move between the limiting position and the releasing position during rotation.

Optionally, the limit structure further includes an elastic reset piece disposed between the inner wall of the housing and the rotating arm, where the elastic reset piece is configured to drive the rotating arm to move, so as to drive the clamping arm to reset from the release position to the limit position.

Optionally, an avoidance port is formed on the inner wall of the housing corresponding to the rotating arm, and the avoidance port is located on one side of the inner wall of the housing, which is close to the recovery cylinder;

the rotating arm is provided with a driving protrusion towards the avoidance opening in a protruding mode, and the driving protrusion extends out of the avoidance opening from the inside of the shell.

Optionally, the limiting structure further comprises an installation seat protruding from the inner wall of the housing, and the installation seat is located at one side of the inner wall of the housing, close to the recovery cylinder, and corresponds to the rotating arm;

one of the rotating arm and the mounting seat is provided with a rotating shaft, the other rotating arm and the mounting seat are provided with a shaft hole matched with the rotating shaft, and the rotating shaft and the shaft hole extend along the radial direction of the recovery cylinder.

Optionally, the limiting structure further includes two baffles protruding from an inner wall of the housing, and the two baffles are clamped on two opposite sides of the rotating arm, so as to limit the rotating arm to move along an axial direction of the rotating shaft.

Optionally, the shell comprises a base and a cover body detachably covered on the base, and an inner cavity is formed by surrounding the cover body and the base together;

the first outer cylinder and the second outer cylinder are connected to the base, and the rotating arm is rotatably arranged on the inner wall of the base.

Optionally, a clamping groove is concavely formed in the outer side wall of the base;

the cover body comprises a main body part and an extension part which is arranged on one side of the main body part in a surrounding mode, a clamping protrusion is arranged on the inner side of the extension part corresponding to the clamping groove in a protruding mode, and when the cover body is arranged on the base in a covering mode, the clamping protrusion can be clamped in the clamping groove, and therefore the cover body can be detachably arranged on the base in a covering mode.

In addition, the utility model also provides a thermal transfer printer, which comprises the carbon tape box.

Compared with the prior art, the carbon ribbon box provided by the utility model has the advantages that the limiting part is moved to the limiting position during normal use, so that the limiting part is matched with the matching part, and the recovery cylinder can only rotate along the winding direction and cannot rotate along the loosening direction at the moment; therefore, the recovery cylinder can be prevented from reversely rotating when the recovery cylinder can normally roll up the carbon ribbon, so that the recovered carbon ribbon is prevented from loosening, and the printing quality is improved. In addition, when the printer is abnormal and the unused carbon tape is wound on the recovery cylinder, the carbon tape box is taken out from the printer, and the limiting part is moved to a release position far away from the matching part, so that the recovery cylinder can rotate along the releasing direction, and meanwhile, the installation cylinder is reversely rotated, so that the unused carbon tape on the recovery cylinder is reversely rewound on the installation cylinder; after the unused carbon strips are rewound by the mounting cylinder, the limiting part moves to the limiting position, so that the waste of the carbon strips is avoided, the utilization rate of the carbon strips is improved, and the structure is simple.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and its details set forth in the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic diagram of a carbon ribbon cartridge according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of the carbon ribbon cartridge of fig. 1 without showing the cover (the limit part is at the limit position);

FIG. 3 is an enlarged schematic view of FIG. 2 at A;

FIG. 4 is a schematic structural view of the limiting portion in FIG. 2;

FIG. 5 is a schematic view of the recovery cylinder of FIG. 2;

FIG. 6 is an enlarged schematic view at B in FIG. 2;

FIG. 7 is an enlarged schematic view of FIG. 1 at C;

FIG. 8 is a schematic view of the structure of the case (not shown) in FIG. 2;

FIG. 9 is an enlarged schematic view of FIG. 8 at D;

fig. 10 is a schematic structural view of the cover in fig. 1.

Reference numerals illustrate:

100-carbon ribbon cartridge, 1-cartridge body, 11-shell, 11 a-dodge port, 111-base, 111 a-clamping groove, 112-cover, 1121-main body, 1122-extension, 1123-clamping protrusion, 12-first outer cylinder, 13-second outer cylinder, 2-carbon ribbon unwinding and winding structure, 21-mounting cylinder, 22-recycling cylinder, 221-mating part, 2211-ratchet, 3-limit structure, 31-limit part, 311-clamping arm, 312-rotating arm, 3121-driving protrusion, 3122-rotating shaft, 32-elastic reset piece, 33-mounting seat, 33 a-shaft hole, 34-baffle plate.

Detailed Description

Preferred embodiments of the present utility model will now be described in detail with reference to the accompanying drawings, which form a part hereof, and together with the description serve to explain the principles of the utility model, and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 4, the present carbon ribbon cartridge 100 includes a cartridge body 1, a carbon ribbon housing structure 2 and a limiting structure 3; the carbon ribbon winding and unwinding structure 2 comprises a mounting cylinder 21 and a recovery cylinder 22 with the same axial direction, the mounting cylinder 21 and the recovery cylinder 22 are arranged in the box body 1 along the radial interval of the mounting cylinder 21 and the recovery cylinder 22, the mounting cylinder 21 and the recovery cylinder 22 can rotate around the respective axial lines, the mounting cylinder 21 is used for sleeving a carbon ribbon roll to be used, the recovery cylinder 22 has a winding direction and a unwinding direction which are opposite in direction when rotating, the recovery cylinder 22 is used for winding the carbon ribbon from the mounting cylinder 21 when rotating along the winding direction, the recovery cylinder 22 is used for unwinding the wound carbon ribbon when rotating along the unwinding direction, and the recovery cylinder 22 is provided with a matching part 221; the limiting structure 3 includes a limiting portion 31 movably disposed in the box 1, where the limiting portion 31 corresponds to the matching portion 221, so as to have a limiting position matched with the matching portion 221 and a releasing position separated from the matching portion 221, and when the limiting portion 31 is in the limiting position, the limiting portion 31 is used to limit the recovery cylinder 22 to rotate along the releasing direction and enable the recovery cylinder 22 to rotate along the winding direction.

When the carbon ribbon cartridge 100 provided by the utility model is used normally, the limiting part 31 is moved to the limiting position, so that the recovery cylinder 22 can only rotate along the winding direction but not rotate along the releasing direction when the limiting part 31 is matched with the matching part 221; therefore, the recycling bin 22 can be used for normally winding the carbon ribbon, and meanwhile, the recycling bin 22 is effectively prevented from reversely rotating, so that the phenomenon that the recycled carbon ribbon is loose is avoided, and the printing quality is improved. In addition, when the printer is abnormal, causing the unused carbon tape on the recovery cylinder 22 to be wound up, the carbon tape cartridge 100 is taken out from the printer, and the stopper 31 is moved to the unqualified position away from the fitting portion 221, so that the recovery cylinder 22 can be rotated in the releasing direction while the mounting cylinder 21 is reversely rotated, to reversely rewind the unused carbon tape on the recovery cylinder 22 onto the mounting cylinder 21; and after the unused carbon tape is rewound by the mounting cylinder 21, the limiting part 31 is moved to the limiting position, so that the waste of the carbon tape is avoided, the utilization rate of the carbon tape is improved, and the structure is simple.

In this embodiment, the installation cylinder 21 is used for installing a carbon ribbon roll to be used, and the recovery cylinder 22 is used for recovering and winding the used carbon ribbon. The printer is provided with a driving shaft which correspondingly drives the recovery cylinder 22 to rotate so as to realize the rolling of the recovery cylinder 22. Furthermore, it should be appreciated that the recovery cylinder 22 has two opposite rotational directions when rotating around its axial direction, namely a winding direction of the wound carbon ribbon and a releasing direction of the released carbon ribbon. Referring to fig. 2, in the present embodiment, the retraction direction of the recovery cylinder 22 is clockwise, and the release direction is counterclockwise.

Further, referring to fig. 3 to 5, the engaging portion 221 is a plurality of ratchet teeth 2211 disposed around the periphery of the recovery cylinder 22, and the plurality of ratchet teeth 2211 are located at one end of the recovery cylinder 22 in the axial direction thereof; the limiting portion 31 includes a clip arm 311 that is matched with the ratchet 2211, the clip arm 311 is movably disposed in the box body 1 to be inserted between two adjacent ratchet 2211 when in a limiting position, so that the recovery cylinder 22 can rotate along a winding direction and limit the recovery cylinder 22 to rotate along a releasing direction, and the clip arm 311 is far away from the ratchet 2211 when in an unwinding position. In the present embodiment, the clip arm 311 is clipped between the two corresponding adjacent ratchet teeth 2211, so that the recovery cylinder 22 can only rotate in the winding direction but cannot rotate in the releasing direction; and when the clamping arm 311 is far away from the ratchet 2211, the recovery cylinder 22 can rotate along two directions, so that the structure is simple and reliable, and the cost is saved.

Still further, referring to fig. 1 and 2, the box 1 includes a housing 11, a first outer cylinder 12 and a second outer cylinder 13, the first outer cylinder 12 and the second outer cylinder 13 are in the same axial direction and are radially spaced apart from each other, one ends of the first outer cylinder 12 and the second outer cylinder 13 are respectively communicated with an inner cavity of the housing 11 and are located at the same side of the housing 11, wherein openings for passing through the carbon ribbon are respectively formed at opposite sides of the first outer cylinder 12 and the second outer cylinder 13; the installation cylinder 21 is arranged in the first outer cylinder 12, the recovery cylinder 22 is arranged in the second outer cylinder 13, and the ratchet 2211 is positioned at one end of the recovery cylinder 22 close to the outer shell 11; the limiting part 31 further comprises a rotating arm 312 connected with the clamping arm 311 in an included angle, the rotating arm 312 is radially rotated around the recovery cylinder 22 to be arranged on the inner wall of the shell 11 and is positioned on one side of the inner wall of the shell 11 close to the recovery cylinder 22, so that the clamping arm 311 is driven to move between a limiting position and a releasing position during rotation.

In this scheme, the arrangement of the first outer cylinder 12 and the second outer cylinder 13 reduces the space occupied by the carbon ribbon cartridge 100 in the printer, and improves the space utilization rate of the printer. Meanwhile, the rotation of the rotating arm 312 drives the clamping arm 311 to move, so that the space of the shell 11 in the arrangement direction of the first outer cylinder 12 and the second outer cylinder 13 is fully utilized, the space utilization rate of the shell 11 is improved, and the whole structure is more compact. Specifically, when the rotating arm 312 rotates, the clamping arm 311 can be driven to extend into the second outer cylinder 13 so as to be clamped between two corresponding adjacent ratchet teeth 2211; meanwhile, the clamping arm 311 can be driven to be separated from the ratchet 2211, so that the recovery cylinder 22 can rotate in two directions.

Specifically, referring to fig. 6, in order to facilitate the reset of the limiting portion 31 from the releasing position to the limiting position, the probability of loosening the recovered carbon ribbon is further reduced. In this embodiment, the limiting structure 3 further includes an elastic reset element 32 disposed between the inner wall of the housing 11 and the rotating arm 312, where the elastic reset element 32 is configured to drive the rotating arm 312 to move, so as to drive the clamping arm 311 to reset from the release position to the limiting position. So, after the printer is abnormal and resets the unused carbon ribbon, the rotating arm 312 can drive the clamping arm 311 to reset to the limiting position from the limiting position without manual driving under the driving of the elastic reset piece 32, so that the convenience is improved. In this embodiment, the elastic restoring member 32 is a spring.

Specifically, referring to fig. 7, an avoidance port 11a is formed on the inner wall of the housing 11 corresponding to the rotating arm 312, and the avoidance port 11a is located on one side of the inner wall of the housing 11 close to the recovery cylinder 22; the rotation arm 312 is provided with a driving protrusion 3121 protruding toward the escape opening 11a, and the driving protrusion 3121 protrudes from the inside of the housing 11 to the outside of the escape opening 11 a. In this scheme, when the clamping arm 311 needs to be driven to the unqualified position, the user can press the driving protrusion 3121 located outside the avoidance port 11a, so that the driving protrusion 3121 moves inward toward the housing 11, and further the rotating arm 312 correspondingly rotates, so as to drive the clamping arm 311 to move from the unqualified position to the unqualified position, and the structure is simple and compact, and the operation of the user is convenient.

Further, referring to fig. 8 and 9, the limiting structure 3 further includes a mounting seat 33 protruding from an inner wall of the housing 11, where the mounting seat 33 is located on a side of the inner wall of the housing 11 near the recovery cylinder 22 and corresponds to the rotating arm 312; one of the rotating arm 312 and the mounting seat 33 is provided with a rotating shaft, the other is provided with a shaft hole matched with the rotating shaft, and the rotating shaft and the shaft hole extend along the radial direction of the recovery cylinder 22. In this embodiment, the rotation of the rotating arm 312 is realized by the cooperation of the rotating shaft and the shaft hole, and the structure is simple and reliable. Specifically, in this embodiment, two mounting seats 33 are oppositely disposed, the two mounting seats 33 are located at two sides corresponding to the rotating arm 312, and each mounting seat 33 is provided with a shaft hole 33a along a radial direction of the recovery cylinder 22, the corresponding rotating arm 312 is provided with a rotating shaft 3122, and the rotating shaft 3122 is disposed in the shaft hole 33a in a penetrating manner, so as to realize rotation of the rotating arm 312.

Further, the limiting structure 3 further includes two baffles 34 protruding from the inner wall of the housing 11, and the two baffles 34 are clamped on two opposite sides of the rotating arm 312 to limit the axial movement of the rotating arm 312 along the rotating shaft 3122. In this way, the two baffles 34 limit the axial movement of the rotating arm 312 along the rotating shaft 3122, that is, prevent the clamping arm 311 from moving along the radial direction of the recovery cylinder 22, so that the clamping arm 311 is more stably matched with the ratchet 2211.

Further, referring to fig. 8 and 10, the housing 11 includes a base 111 and a cover 112 detachably covering the base 111, and the cover 112 and the base 111 enclose an inner cavity; the first outer tube 12 and the second outer tube 13 are connected to the base 111, and the rotating arm 312 is rotatably provided on the inner wall of the base 111. In this embodiment, the housing 11 is detachably connected to the base 111 and the cover 112, the first outer cylinder 12 and the second outer cylinder 13 are respectively connected to the base 111 and are communicated with an inner cavity enclosed by the base 111 and the cover 112, and the rotating arm 312 is disposed on an inner wall of the base 111, so that when the cooperation between the limiting portion 31 and the mating portion 221 is abnormal, the user can check conveniently.

Further, the outer side wall of the base 111 is concavely provided with a clamping groove 111a; the cover 112 includes a main body 1121 and an extension 1122 surrounding the main body 1121, wherein a locking protrusion 1123 is protruding from the inner side of the extension 1122 corresponding to the locking groove 111a, and when the cover 112 is covered on the base 111, the locking protrusion 1123 can be locked on the locking groove 111a, so that the cover 112 is detachably covered on the base 111. In the present embodiment, when the cover 112 is covered on the base 111, one end of the base 111 far away from the first cylinder and the second cylinder extends into the extension 1122, and the locking protrusion 1123 is locked in the locking groove 111a, so as to realize the covering of the cover 112 on the base 111; when the cover 112 needs to be detached, the user applies an external force to drive the clamping convex 1123 to be separated from the clamping groove 111a, so that the structure is simple and reliable.

In addition, the utility model also provides a thermal transfer printer comprising the carbon tape cartridge 100 as described in any one of the above. It should be noted that, the detailed structure of the carbon ribbon cartridge 100 of the thermal transfer printer may refer to the embodiment of the carbon ribbon cartridge 100 described above, and will not be described herein again; because the above-mentioned carbon ribbon cartridge 100 is used in the thermal transfer printer of the present utility model, embodiments of the thermal transfer printer of the present utility model include all the technical solutions of all the embodiments of the above-mentioned carbon ribbon cartridge 100, and the achieved technical effects are also identical, and are not described in detail herein.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims (10)

1. A carbon ribbon cartridge, comprising:

a case body;

the carbon tape winding and unwinding structure comprises an installation cylinder and a recovery cylinder, wherein the installation cylinder and the recovery cylinder are arranged in the box body at intervals along the radial direction of the installation cylinder, the installation cylinder and the recovery cylinder can rotate around the respective axes, the installation cylinder is used for sleeving a carbon tape roll to be used, the recovery cylinder is provided with a winding direction and a unwinding direction which are opposite in direction when rotating, the recovery cylinder is used for winding the carbon tape from the installation cylinder when rotating along the winding direction, and is used for unwinding the wound carbon tape when rotating along the unwinding direction, and the recovery cylinder is provided with a matching part; the method comprises the steps of,

the limit structure comprises a limit part movably arranged in the box body, wherein the limit part corresponds to the matching part, is provided with a limit position matched with the matching part and a release position separated from the matching part, and is used for limiting the recovery cylinder to rotate along the releasing direction and enabling the recovery cylinder to rotate along the winding direction when the limit part is positioned at the limit position.

2. The carbon ribbon cartridge of claim 1, wherein the mating portion is a plurality of ratchet teeth disposed around the outer periphery of the recovery cylinder, the plurality of ratchet teeth being located at one end of the recovery cylinder in an axial direction thereof;

the limiting part comprises a clamping arm matched with the ratchets, the clamping arm is movably arranged in the box body, and is inserted between two adjacent ratchets when in a limiting position, so that the recovery cylinder can rotate along the winding direction and is limited to rotate along the releasing direction, and the clamping arm is far away from the ratchets when in the releasing position.

3. The carbon ribbon cartridge of claim 2, wherein the cartridge body comprises a housing, a first outer cylinder and a second outer cylinder, the first outer cylinder and the second outer cylinder are in the same axial direction and are arranged at intervals along the radial direction, one ends of the first outer cylinder and the second outer cylinder are respectively communicated with an inner cavity of the housing and are positioned on the same side of the housing, and openings for the carbon ribbon to pass through are respectively formed in one side of the first outer cylinder opposite to the second outer cylinder;

the installation cylinder is arranged in the first outer cylinder, the recovery cylinder is arranged in the second outer cylinder, and the ratchet is positioned at one end of the recovery cylinder, which is close to the shell;

the limiting part also comprises a rotating arm connected with the clamping arm in an included angle, the rotating arm is arranged on the inner wall of the shell in a radial rotating manner around the recovery cylinder and is positioned on one side, close to the recovery cylinder, of the inner wall of the shell, and the clamping arm is driven to move between the limiting position and the releasing position during rotation.

4. The carbon ribbon cartridge of claim 3, wherein the limit structure further comprises an elastic reset member disposed between the inner wall of the housing and the rotating arm, the elastic reset member being configured to drive the rotating arm to move so as to drive the clamping arm to reset from the release position to the limit position.

5. The carbon ribbon cartridge of claim 4, wherein an avoidance opening is formed in the inner wall of the housing corresponding to the rotating arm, and the avoidance opening is positioned on one side of the inner wall of the housing close to the recovery cylinder;

the rotating arm is provided with a driving protrusion towards the avoidance opening in a protruding mode, and the driving protrusion extends out of the avoidance opening from the inside of the shell.

6. The carbon ribbon cartridge of claim 3, wherein the limit structure further comprises a mounting seat protruding from an inner wall of the housing, the mounting seat being located at a side of the inner wall of the housing near the recovery cylinder and corresponding to the rotating arm;

one of the rotating arm and the mounting seat is provided with a rotating shaft, the other rotating arm and the mounting seat are provided with a shaft hole matched with the rotating shaft, and the rotating shaft and the shaft hole extend along the radial direction of the recovery cylinder.

7. The carbon ribbon cartridge of claim 6, wherein the limiting structure further comprises two baffles protruding from an inner wall of the housing, the two baffles being clamped on opposite sides of the rotating arm to limit axial movement of the rotating arm along the rotating shaft.

8. The carbon ribbon cartridge of claim 3, wherein the housing comprises a base and a cover detachably covering the base, the cover and the base enclosing together to form an inner cavity;

the first outer cylinder and the second outer cylinder are connected to the base, and the rotating arm is rotatably arranged on the inner wall of the base.

9. The carbon ribbon cartridge of claim 8, wherein the outer sidewall of the base is concavely provided with a clamping groove;

the cover body comprises a main body part and an extension part which is arranged on one side of the main body part in a surrounding mode, a clamping protrusion is arranged on the inner side of the extension part corresponding to the clamping groove in a protruding mode, and when the cover body is arranged on the base in a covering mode, the clamping protrusion can be clamped in the clamping groove, and therefore the cover body can be detachably arranged on the base in a covering mode.

10. A thermal transfer printer comprising the carbon tape cartridge according to any one of claims 1 to 9.

Images