An ink ribbon cartridge and its fixed frame structure

Abstract

The present invention discloses an ink ribbon cassette and its fixed frame structure, and the following solution is now proposed. It includes an installation structure, and the installation structure includes an ink ribbon cassette body and a cover plate installed on the top of the ink ribbon cassette body. An active base is slidably connected inside the ink ribbon cassette body; by providing the installation structure, replacement cassette and shielding plate, when the active base moves, two shielding plates are pushed through the guide block, push plate and push block, so that the two shielding plates automatically move away from the clamping plate, thereby automatically opening the clamping plate. The operator can replace the replacement cassette, and then sequentially snap the ink ribbon body inside the unused replacement cassette onto the two clamping plates and the driving structure. The operator pushes the active base, so that the replacement cassette retracts into the ink ribbon cassette body, thereby completing the replacement process of the ink ribbon body. The operation is simple and fast, with high efficiency, and at the same time, it can also reduce the skill requirements for the operator and has strong applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of ink ribbon cartridges, and particularly to an ink ribbon cartridge and its fixed frame structure. Background Art

[0002] With the continuous development of printing technology, inkjet printers, as an important printing device, have been widely used in the fields of office, home, commerce, etc. In an inkjet printer, the ink ribbon cartridge, as a key component for storing and supplying ink, the stability of its performance and the convenience of use have a crucial impact on the overall performance of the printer. Most of the existing ink ribbon cartridges are installed on the printer through a fixed frame structure.

[0003] An ink ribbon cartridge capable of accommodating an ink ribbon for a printing device to print, with the patent number CN 203995147 U, includes an upper shell and a lower shell. The upper shell and the lower shell are combined to form an ink ribbon cartridge cavity. The lower shell includes a part provided with a driving part and a driven part and a part capable of accommodating an ink ribbon for a printing device to print. The feature is that the part of the lower shell provided with the driving part and the driven part forms a lower left shell, and the part capable of accommodating an ink ribbon for a printing device to print forms a lower right shell. The lower left shell and the lower right shell are detachably connected, and the lower right shell can be directly used to accommodate a folded ink ribbon with a specific length intercepted when the ink ribbon is opened by an ink ribbon opener. Thus, it is not necessary for an operator to directly transfer the folded ink ribbon by hand, solving the technical problem that the existing ink ribbon cartridge capable of accommodating an ink ribbon for a printing device to print is prone to "ribbon explosion" when loading the ink ribbon.

[0004] Since the ink ribbon cartridge in this application is relatively simple in structure, when an operator needs to replace the internal ink ribbon, the operator needs to first open the shell of the ink ribbon cartridge. This process usually requires a certain degree of careful operation to ensure that the shell part is not damaged. After successfully opening the shell, the operator needs to carefully take out the used ink ribbon from the ink ribbon cartridge cavity. Next, the operator needs to place a new ink ribbon inside the ink ribbon cartridge cavity. This process also requires care and precision to ensure that the ink ribbon is correctly installed and in a stable position. During the installation process, the operator needs to arrange the ink ribbon to ensure that it does not twist inside the ink ribbon cartridge cavity. The entire replacement process has relatively high requirements for the operator's skills, not only requiring familiarity with the structure of the ink ribbon cartridge, but also requiring them to have certain technical operation capabilities and patience. In view of the above problems, the present invention document proposes an ink ribbon cartridge and its usage method. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose an ink ribbon cartridge and its fixed frame structure that are convenient for replacing the ink ribbon body, with simple and fast operation, high efficiency, and at the same time, can reduce the skill requirements for operators and have strong applicability.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] An ink ribbon cartridge, comprising an installation structure, the installation structure including an ink ribbon cartridge body and a cover plate mounted on the top of the ink ribbon cartridge body. A movable base is slidably connected inside the ink ribbon cartridge body. Clamping plates are fixedly connected to both ends of the ink ribbon cartridge body. A replacement cartridge is slidably connected inside the movable base, and an ink ribbon body is stored inside the replacement cartridge. An elastic structure for pushing the movable base to move is provided inside the ink ribbon cartridge body. A shielding plate is provided on the clamping plate through a limiting structure. A pushing structure for driving the shielding plate to move up and down is provided on the movable base. Driving structures are provided on both the ink ribbon cartridge body and the movable base;

[0008] The pushing structure includes two guiding blocks respectively fixedly connected to both sides of the movable base. A pushing plate is hinged on the guiding block. One end of the pushing plate away from the guiding block is hinged with a pushing block, and the two pushing blocks are respectively fixedly connected to the two shielding plates.

[0009] Preferably, a buckle is provided on the ink ribbon cartridge body, and when the buckle rotates, it can selectively limit the movable base and the replacement cartridge.

[0010] Preferably, the left view cross-sectional shape of the movable base is L-shaped, and the top view cross-sectional shape of the end of the movable base is concave-shaped.

[0011] Preferably, the cross-sectional shape of the shielding plate is L-shaped, and the shielding plate fits with the clamping plate and the ink ribbon cartridge body.

[0012] Preferably, the driving structure includes a first driving wheel rotatably connected to the ink ribbon cartridge body and a second driving wheel rotatably connected to the movable base. The positions of the first driving wheel and the second driving wheel correspond to each other. A slot corresponding to the position of the first driving wheel is provided on the movable base.

[0013] Preferably, the limiting structure includes at least one limiting block fixedly connected to the clamping plate. A limiting plate is slidably connected inside the limiting block, and the limiting plate is fixedly connected to the adjacent shielding plate.

[0014] Preferably, the elastic structure includes at least one telescopic rod fixedly connected to the ink ribbon cartridge body. The end of the telescopic rod away from the ink ribbon cartridge body is fixedly connected to the movable base, and a spring is sleeved on the outer wall of the telescopic rod. The two ends of the spring are respectively fixedly connected to the ink ribbon cartridge body and the movable base.

[0015] A fixed frame structure, the fixed frame structure includes a frame body, the frame body includes two frame shells, and the two frame shells are respectively fixedly connected to both ends of the ribbon cartridge body, and a fixing groove for connecting to a printer is provided on the surface of the frame shell.

[0016] Preferably, the guiding block and the pushing plate are both located inside the frame shell, and the pushing block is slidably connected to the frame shell.

[0017] Compared with the prior art, the present invention provides a ribbon cartridge, which has the following beneficial effects:

[0018] 1. For the ribbon cartridge and its fixed frame structure, by setting an installation structure, a replacement cartridge, and a shielding plate, when an operator needs to replace the ribbon body inside the printer, the ribbon cartridge body is directly taken out. When the buckle releases the limit on the movable base, under the action of the elastic structure, the movable base automatically drives the replacement cartridge to extend out of the ribbon cartridge body. When the movable base moves, through the guiding block, the pushing plate, and the pushing block, two shielding plates are pushed, so that the two shielding plates automatically move away from the clamping plate, thereby automatically opening the clamping plate. The operator can replace the replacement cartridge, and then the ribbon body inside the unused replacement cartridge is sequentially clamped into the two clamping plates and the driving structure. The operator pushes the movable base, so that the replacement cartridge retracts into the ribbon cartridge body, thereby completing the replacement process of the ribbon body. The operation is simple and fast. While having high efficiency, it can also reduce the skill requirements for the operator and has strong applicability.

[0019] 2. For the ribbon cartridge and its fixed frame structure, by setting a driving structure, when the movable base drives the replacement cartridge to move out of the ribbon cartridge body, since the second driving wheel is rotatably connected to the movable base, the second driving wheel can automatically extend out of the ribbon cartridge body following the movable base. At this time, the distance between the first driving wheel and the second driving wheel becomes larger, which is convenient for the operator to clamp the ribbon body into the first driving wheel and the second driving wheel, further improving the convenience of the operator for replacing the ribbon body.

[0020] 3. For the ribbon cartridge and its fixed frame structure, by setting a frame body, the ribbon cartridge body can be normally installed inside the printer under the action of the fixing groove. The frame shell can play a certain role in shielding and protecting the guiding block, the pushing plate, and the pushing block, avoiding damage caused by external foreign objects, ensuring the service life of the device, and having high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional view of a ribbon cartridge proposed by the present invention;

[0022] Figure 2View of the ink ribbon cartridge body, movable base, and replacement cartridge of the present invention being disassembled;

[0023] Figure 3 View of the ink ribbon cartridge body, elastic structure, replacement cartridge, and connection structure of the ink ribbon body of the present invention;

[0024] Figure 4 View of the connection structure of the ink ribbon cartridge body, movable base, frame body, and drive structure of the present invention;

[0025] Figure 5 View of the connection structure of the ink ribbon cartridge body, movable base, replacement cartridge, and ink ribbon body of the present invention;

[0026] Figure 6 View of the connection structure of the ink ribbon cartridge body, movable base, replacement cartridge, and frame housing of the present invention;

[0027] Figure 7 View of the connection structure of the movable base, pushing structure, and second driving wheel of the present invention;

[0028] Figure 8 View of the connection structure of the shielding plate, limiting plate, guiding block, pushing plate, and pushing block of the present invention.

[0029] In the figure: 1, mounting structure; 101, ink ribbon cartridge body; 102, cover plate; 103, movable base; 104, clamping plate; 105, slotted opening; 106, buckle; 2, elastic structure; 201, telescopic rod; 202, spring; 3, replacement cartridge; 4, ink ribbon body; 5, shielding plate; 6, pushing structure; 601, guiding block; 602, pushing plate; 603, pushing block; 7, drive structure; 701, first driving wheel; 702, second driving wheel; 8, limiting structure; 801, limiting block; 802, limiting plate; 9, frame body; 901, frame housing; 902, fixing groove. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] Embodiment 1: Refer to Figures 1-6 A ribbon cartridge includes an installation structure 1. The installation structure 1 includes a ribbon cartridge body 101 and a cover plate 102 installed on the top of the ribbon cartridge body 101. A movable base 103 is slidably connected inside the ribbon cartridge body 101. Clamping plates 104 are fixedly connected to both ends of the ribbon cartridge body 101. A replacement cartridge 3 is slidably connected inside the movable base 103, and a ribbon body 4 is stored inside the replacement cartridge 3. An elastic structure 2 for pushing the movable base 103 to move is provided inside the ribbon cartridge body 101. A shielding plate 5 is provided on the clamping plate 104 through a limiting structure 8. A pushing structure 6 for driving the shielding plate 5 to move up and down is provided on the movable base 103. Driving structures 7 are provided on both the ribbon cartridge body 101 and the movable base 103;

[0033] The pushing structure 6 includes two guiding blocks 601 respectively fixedly connected to both sides of the movable base 103. A pushing plate 602 is hinged on the guiding block 601. One end of the pushing plate 602 away from the guiding block 601 is hinged with a pushing block 603, and the two pushing blocks 603 are respectively fixedly connected to the two shielding plates 5.

[0034] In the present invention, a buckle 106 is provided on the ribbon cartridge body 101. When the buckle 106 rotates, it can selectively limit the movable base 103 and the replacement cartridge 3. The left view cross-sectional shape of the movable base 103 is set as an L shape, and the top view cross-sectional shape of the end of the movable base 103 is set as a concave shape. By setting the left view cross-sectional shape of the movable base 103 as an L shape and the top view cross-sectional shape of the end of the movable base 103 as a concave shape, it is convenient for the movable base 103 to push the replacement cartridge 3, ensuring that the movable base 103 can normally drive the replacement cartridge 3 to extend out of the ribbon cartridge body 101, and it is also convenient for the operator to install the replacement cartridge 3 into the movable base 103, thereby improving the convenience of use for the operator.

[0035] In the present invention, the cross-sectional shape of the shielding plate 5 is set as an L shape, and the shielding plate 5 fits with the clamping plate 104 and the ribbon cartridge body 101. By providing the shielding plate 5 and setting the shielding plate 5 to fit with the clamping plate 104 and the ribbon cartridge body 101, when the replacement cartridge 3 is placed inside the movable base 103 and the movable base 103 and the replacement cartridge 3 are retracted into the ribbon cartridge body 101, the shielding plate 5 moves to fit with the clamping plate 104 and the ribbon cartridge body 101, thereby playing a role of shielding and protection, preventing the ribbon body 4 from detaching from the rollers of the clamping plate 104, and at the same time preventing foreign objects from entering the inside of the ribbon cartridge body 101 and the clamping plate 104, ensuring the safety of the device.

[0036] A fixed frame structure, the fixed frame structure includes a frame body 9, the frame body 9 includes two frame shells 901, and the two frame shells 901 are respectively fixedly connected to both ends of the ink ribbon cartridge body 101, and a fixing groove 902 for connecting to the printer is arranged on the surface of the frame shell 901.

[0037] In the present invention, the guiding block 601 and the pushing plate 602 are both located inside the frame shell 901, and the pushing block 603 is slidably connected to the frame shell 901. By arranging the frame body 9, under the action of the fixing groove 902, the ink ribbon cartridge body 101 can be normally installed inside the printer, and the frame shell 901 can play a certain role in shielding and protecting the guiding block 601, the pushing plate 602 and the pushing block 603, avoiding damage caused by external foreign objects, ensuring the service life of the device, and having relatively high safety.

[0038] Example 2: Refer to Figures 1-8 , an ink ribbon cartridge, including an installation structure 1, the installation structure 1 includes an ink ribbon cartridge body 101, and a cover plate 102 installed on the top of the ink ribbon cartridge body 101. An active base 103 is slidably connected inside the ink ribbon cartridge body 101. Clamping plates 104 are fixedly connected to both ends of the ink ribbon cartridge body 101. A replacement cartridge 3 is slidably connected inside the active base 103, and an ink ribbon body 4 is stored inside the replacement cartridge 3. An elastic structure 2 for pushing the active base 103 to move is arranged inside the ink ribbon cartridge body 101. A shielding plate 5 is arranged on the clamping plate 104 through a limiting structure 8. A pushing structure 6 for driving the shielding plate 5 to move up and down is arranged on the active base 103; driving structures 7 are arranged on both the ink ribbon cartridge body 101 and the active base 103;

[0039] The pushing structure 6 includes two guiding blocks 601 respectively fixedly connected to both sides of the active base 103. A pushing plate 602 is hinged on the guiding block 601. One end of the pushing plate 602 away from the guiding block 601 is hinged with a pushing block 603, and the two pushing blocks 603 are respectively fixedly connected to the two shielding plates 5.

[0040] In the present invention, a buckle 106 is arranged on the ink ribbon cartridge body 101, and when the buckle 106 rotates, it can selectively limit the active base 103 and the replacement cartridge 3. The left cross-sectional shape of the active base 103 is set as an L shape, and the top cross-sectional shape of the end of the active base 103 is set as a concave shape. By setting the left cross-sectional shape of the active base 103 as an L shape and the top cross-sectional shape of the end of the active base 103 as a concave shape, it is convenient for the active base 103 to push the replacement cartridge 3, ensuring that the active base 103 can normally drive the replacement cartridge 3 to extend out of the ink ribbon cartridge body 101, and facilitating the operator to install the replacement cartridge 3 inside the active base 103, thereby improving the use convenience of the operator.

[0041] In the present invention, the cross-sectional shape of the baffle 5 is set to an L shape, and the baffle 5 is attached to the clamping plate 104 and the ribbon cassette body 101. By providing the baffle 5 and setting it to be attached to the clamping plate 104 and the ribbon cassette body 101, when the replacement cartridge 3 is placed inside the movable base 103 and the movable base 103 and the replacement cartridge 3 are retracted into the ribbon cassette body 101, the baffle 5 moves to be attached to the clamping plate 104 and the ribbon cassette body 101, thereby playing a role of shielding and protection, preventing the ribbon body 4 from detaching from the roller of the clamping plate 104, and at the same time preventing foreign objects from entering the inside of the ribbon cassette body 101 and the clamping plate 104, ensuring the safety of the device.

[0042] A fixed frame structure, the fixed frame structure includes a frame body 9, the frame body 9 includes two frame outer shells 901, and the two frame outer shells 901 are respectively fixedly connected to both ends of the ribbon cassette body 101, and a fixing groove 902 for connecting to a printer is provided on the surface of the frame outer shell 901.

[0043] In the present invention, the guiding block 601 and the pushing plate 602 are both located inside the frame outer shell 901, and the pushing block 603 is slidably connected to the frame outer shell 901. By providing the frame body 9, under the action of the fixing groove 902, the ribbon cassette body 101 can be normally installed inside the printer, and the frame outer shell 901 can play a certain role of shielding and protection for the guiding block 601, the pushing plate 602 and the pushing block 603, avoiding the situation of being damaged by foreign objects from the outside, ensuring the service life of the device, and having relatively high safety.

[0044] In the present invention, the driving structure 7 includes a first driving wheel 701 rotatably connected to the ribbon cassette body 101, and a second driving wheel 702 rotatably connected to the movable base 103. The positions of the first driving wheel 701 and the second driving wheel 702 correspond to each other, and a slot 105 corresponding to the position of the first driving wheel 701 is provided on the movable base 103. By providing the first driving wheel 701 and the second driving wheel 702, when the movable base 103 drives the replacement cartridge 3 to move out of the ribbon cassette body 101, since the second driving wheel 702 is rotatably connected to the movable base 103, the second driving wheel 702 can automatically extend out of the ribbon cassette body 101 following the movable base 103. At this time, the distance between the first driving wheel 701 and the second driving wheel 702 becomes larger, thereby facilitating the operator to clamp the ribbon body 4 into the inside of the first driving wheel 701 and the second driving wheel 702, and further improving the convenience of the operator to replace the ribbon body 4.

[0045] In the present invention, the limiting structure 8 includes at least one limiting block 801 fixedly connected to the clamping plate 104. A limiting plate 802 is slidably connected inside the limiting block 801, and the limiting plate 802 is fixedly connected to the adjacent shielding plate 5. By providing the limiting structure 8, the limiting structure 8 can play a certain limiting role on the shielding plate 5, so that when the movable base 103 moves in or out of the ink ribbon cartridge body 101, the shielding plate 5 can stably move away from or close to the clamping plate 104, facilitating the operator to disassemble, install and replace the ink ribbon body 4.

[0046] In the present invention, the elastic structure 2 includes at least one telescopic rod 201 fixedly connected to the ink ribbon cartridge body 101. One end of the telescopic rod 201 away from the ink ribbon cartridge body 101 is fixedly connected to the movable base 103, and a spring 202 is sleeved on the outer wall of the telescopic rod 201. Two ends of the spring 202 are respectively fixedly connected to the ink ribbon cartridge body 101 and the movable base 103. By providing the telescopic rod 201 and the spring 202, after the buckle 106 releases the limiting fixation of the movable base 103, under the cooperation of the telescopic rod 201 and the spring 202, the movable base 103 can automatically extend out of the ink ribbon cartridge body 101, thus facilitating the operator to replace the replacement cartridge 3 and the ink ribbon body 4, and improving the convenience of use for the operator.

[0047] A fixed frame structure includes a frame body 9. The frame body 9 includes two frame shells 901, and the two frame shells 901 are respectively fixedly connected to two ends of the ink ribbon cartridge body 101. Fixing grooves 902 for connecting to a printer are provided on the surfaces of the frame shells 901.

[0048] In the present invention, the guiding block 601 and the pushing plate 602 are both located inside the frame shell 901, and the pushing block 603 is slidably connected to the frame shell 901. By providing the frame body 9, under the action of the fixing grooves 902, the ink ribbon cartridge body 101 can be normally installed inside the printer. The frame shell 901 can play a certain shielding and protecting role on the guiding block 601, the pushing plate 602 and the pushing block 603, preventing them from being damaged by external foreign objects, ensuring the service life of the device, and having relatively high safety.

[0049] Working principle: When an operator needs to replace the ink ribbon body 4 inside the printer, the ink ribbon cartridge body 101 is directly taken out. When the buckle 106 releases the limit on the movable base 103, under the action of the spring 201, the movable base 103 automatically drives the replacement cartridge 3 to extend out of the ink ribbon cartridge body 101. When the movable base 103 moves, through the guide block 601, the push plate 602 and the push block 603, the two shielding plates 5 are pushed, so that the two shielding plates 5 automatically move away from the clamping plate 104, thereby automatically opening the clamping plate 104. The operator can replace the replacement cartridge 3, and then the ink ribbon body 4 inside the unused replacement cartridge 3 is sequentially clamped inside the two clamping plates 104. When the movable base 103 drives the replacement cartridge 3 to move out of the ink ribbon cartridge body 101, since the second driving wheel 702 is rotationally connected to the movable base 103, the second driving wheel 702 can automatically extend out of the ink ribbon cartridge body 101 following the movable base 103. At this time, the distance between the first driving wheel 701 and the second driving wheel 702 becomes larger. The operator directly clamps the ink ribbon body 4 between the first driving wheel 701 and the second driving wheel 702, and then the operator pushes the movable base 103 to make the replacement cartridge 3 retract into the ink ribbon cartridge body 101, thus completing the replacement process of the ink ribbon body 4.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, shall be covered by the protection scope of the present invention.

Claims

1. An ink ribbon cartridge, comprising a mounting structure (1), characterized in that: The mounting structure (1) comprises an ink ribbon box body (101), and a cover plate (102) mounted on the top of the ink ribbon box body (101); a movable base (103) is slidably connected inside the ink ribbon box body (101); both ends of the ink ribbon box body (101) are fixedly connected with a clamping plate (104); a replacement box (3) is slidably connected inside the movable base (103), and the ink ribbon body (4) is stored inside the replacement box (3); an elastic structure (2) for pushing the movable base (103) to move is arranged inside the ink ribbon box body (101); a baffle plate (5) is arranged on the clamping plate (104) via a limiting structure (8); a pushing structure (6) for driving the baffle plate (5) to move up and down is arranged on the movable base (103); and a driving structure (7) is arranged on both the ink ribbon box body (101) and the movable base (103); The pushing structure (6) comprises two guide blocks (601) respectively fixedly connected to two sides of the movable base (103); a pushing plate (602) is hingedly connected to the guide block (601); a pushing block (603) is hingedly connected to one end of the pushing plate (602) away from the guide block (601); and the two pushing blocks (603) are respectively fixedly connected to the two shielding plates (5); The ink ribbon box body (101) is provided with a buckle (106), and when the buckle (106) is rotated, it can selectively limit the position of the movable base (103) and the replacement box (3); The driving structure (7) comprises a first driving wheel (701) rotatably connected to the ink ribbon box body (101), and a second driving wheel (702) rotatably connected to the movable base (103), the positions of the first driving wheel (701) and the second driving wheel (702) corresponding to each other, and the movable base (103) is provided with a slot (105) corresponding to the position of the first driving wheel (701); The limiting structure (8) comprises at least one limiting block (801) fixedly connected to the clamping plate (104), the limiting block (801) being internally slidably connected to a limiting plate (802), and the limiting plate (802) being fixedly connected to a nearby shielding plate (5); The elastic structure (2) comprises at least one telescopic rod (201) fixedly connected to the ink ribbon box body (101), one end of the telescopic rod (201) away from the ink ribbon box body (101) being fixedly connected to the movable base (103), and a spring (202) is sleeved on the outer wall of the telescopic rod (201), and two ends of the spring (202) are respectively fixedly connected to the ink ribbon box body (101) and the movable base (103).

2. An ink ribbon cartridge according to claim 1, characterized in that: The left-side cross-sectional shape of the movable base (103) is set to be an L-shape, and the top-view cross-sectional shape of the end of the movable base (103) is set to be a concave shape.

3. An ink ribbon cartridge according to claim 2, characterized in that: The cross-sectional shape of the shielding plate (5) is set to be L-shaped, and the shielding plate (5) is fitted with the clamping plate (104) and the ink ribbon box body (101).

4. A fixed frame structure, assembled on the ink ribbon cassette according to any one of claims 1 to 3, characterized in that: The fixed frame structure comprises a frame body (9), the frame body (9) comprises two frame shells (901), and the two frame shells (901) are respectively fixedly connected to two ends of the ink ribbon box body (101), and the surface of the frame shell (901) is provided with a fixing groove (902) for connecting with the printer.

5. A fixed frame structure according to claim 4, characterized in that: The guide block (601) and the push plate (602) are both located inside the frame housing (901), and the push block (603) is slidably connected to the frame housing (901).

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