Ribbon cartridge

Abstract

The utility model discloses a ribbon cartridge, which comprises a bottom shell, the bottom shell extends along a first direction and comprises a placing cavity, and the top of the bottom shell is provided with an opening. A supply shaft, a winding shaft and a lifting device are arranged in the containing cavity. The supply shaft and the winding shaft are arranged at intervals in the first direction, extend in the second direction, can rotate in the circumferential direction and are used for winding a thermal transfer ribbon. The lifting device is arranged between the supply shaft and the winding shaft and comprises a driving assembly and a guide block. The guide block is provided with a transmission channel matched with the thermal transfer ribbon, and the driving assembly is used for driving the guide block to rotate in the circumferential direction relative to the winding shaft so as to increase the transmission path of the thermal transfer ribbon. The thermal transfer ribbon is transmitted to the winding shaft from the supply shaft through the transmission channel in the guide block, and the position of the guide block is changed by arranging the driving assembly, so that the transmission path of the thermal transfer ribbon between the supply shaft and the winding shaft is increased, and then certain tensile force is automatically applied to the thermal transfer ribbon in transmission; and the problems of jamming, tape deviation and the like of the ribbon cartridge and the cartridge body during tape discharging are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, and particularly relates to a ribbon cartridge. Background Art

[0002] A print head and a ribbon cartridge are usually arranged in a label printer. Among them, the ribbon cartridge is installed in the label printer in a detachable manner. A printing medium tape and a carbon ribbon are arranged in the ribbon cartridge. During the printing process, the print head and the printing roller clamp the printing medium tape and the carbon ribbon together, and the printing information on the carbon ribbon is transferred to the printing medium tape by means of thermal transfer. In the prior art, the carbon ribbon cannot maintain a certain tension after transmission, which will cause problems such as jamming and tape deviation between the ribbon cartridge and the cartridge body when the tape is fed out. Content of the Utility Model

[0003] In order to overcome the above-mentioned drawbacks, the purpose of the utility model is to provide a ribbon cartridge to solve the problem that the carbon ribbon cannot maintain a certain tension after transmission as mentioned in the above background art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is a ribbon cartridge, including:

[0005] A bottom shell extending along a first direction, including a placement cavity with an opening at the top. A supply shaft, a take-up reel and a lifting device are arranged in the placement cavity.

[0006] The supply shaft and the take-up reel are arranged at intervals along the first direction, both extending in a second direction and being rotatable circumferentially for winding the carbon ribbon.

[0007] The lifting device is arranged between the supply shaft and the take-up reel and includes a driving component and a guiding block. The guiding block is provided with a transmission channel adapted to the carbon ribbon. The driving component is used to drive the guiding block to rotate circumferentially relative to the take-up reel to increase the transmission path of the carbon ribbon. The first direction is perpendicular to the second direction, and the circumferential direction surrounds the second direction.

[0008] For the ribbon cartridge provided by the utility model, the carbon ribbon is transmitted from the supply shaft through the transmission channel in the guiding block to the take-up reel. By setting the driving component to change the position of the guiding block, the transmission path of the carbon ribbon between the supply shaft and the take-up reel is increased, and then a certain tension is automatically applied to the carbon ribbon during transmission, avoiding problems such as jamming and tape deviation between the ribbon cartridge and the cartridge body when the tape is fed out.

[0009] In some embodiments, the driving component includes a sliding part. The sliding part includes an arc-shaped guide rail and an arc-shaped slider. The arc-shaped guide rail is concentric with the take-up reel. The bottom of the arc-shaped slider is slidably matched with the arc-shaped guide rail, and the top is connected to the bottom of the guiding block.

[0010] 3. The driving assembly also includes a transfer part. The transfer part includes a buckle, a transfer member and an adjustment plate. The buckle is rotatably arranged on the top of the winding shaft, the two ends of the transfer member are respectively connected to the buckle and the adjustment plate, and the bottom of the adjustment plate is connected to the guide block, which is used to drive the guide block to slide along the arc guide rail by rotating the adjustment plate.

[0011] By adopting the above technical solution, the buckle can be fixedly connected with the top of the winding shaft and can rotate relative to the winding shaft. Since the guide block rotates in the circumferential direction with the winding shaft as the origin, the arc guide rail and the arc slider need to be adapted to be arc-shaped, so that the position of the guide block can be changed by moving the top of the adjustment plate.

[0012] In some embodiments, the ribbon box further comprises a top cover. The top cover is arranged above the top cover along the second direction and is used to close the opening. The top cover is provided with an arc-shaped through hole corresponding to the arc-shaped guide rail, and the top of the adjustment plate is passed through the arc-shaped through hole.

[0013] By adopting the above technical solution, the arc-shaped through hole and the adjustment plate are arranged in an arc shape corresponding to the arc-shaped through hole, and the top of the adjustment plate is penetrated through the arc-shaped through hole to facilitate the movement and adjustment of the guide block.

[0014] In some embodiments, an elastic telescopic ball head is provided on the top of the side wall of the adjustment plate facing the winding shaft.

[0015] The side wall of the arc-shaped through hole close to the winding shaft is provided with a plurality of grooves at intervals, and each of the grooves is arranged corresponding to the elastic telescopic ball head and is used for abutting and limiting with the elastic telescopic ball head.

[0016] By adopting the above technical solution, the positions of the multiple grooves correspond to the positions of different guide blocks, that is, the transmission paths of different carbon ribbons between the supply shaft and the winding shaft, so as to adapt to different transmission requirements.

[0017] In some embodiments, projections of the guide block and the transmission channel along the second direction are both arc-shaped.

[0018] By adopting the above technical solution, the guide block and the transmission channel are both arranged in an arc shape, and the transmission of the carbon ribbon at both ends of the guide block is smoother.

[0019] In some embodiments, the placement cavity is further provided with a plurality of positioning posts, each of which extends along the second direction. The bottom of the top cover is provided with a plurality of positioning pins corresponding to the positioning posts, which are used for plugging and matching with the positioning posts.

[0020] By adopting the above technical solution, the top cover and the bottom box are fixed by plugging and cooperating with the positioning pins and the positioning columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of an embodiment of a ribbon cassette of the utility model;

[0022] Figure 2 It is a partial structural schematic diagram of an embodiment of a ribbon cassette of the utility model;

[0023] In the figure:

[0024] 1. Ribbon cassette; 2. Bottom shell; 20. Placement cavity; 21. Supply shaft; 22. Take-up shaft; 23. Positioning column; 3. Lifting device; 30. Drive assembly; 31. Sliding part; 32. Arc guide rail; 33. Arc slider; 34. Adapter; 35. Buckle; 36. Adapter; 37. Adjustment plate; 38. Elastic telescopic ball head; 4. Guide block; 40. Transmission channel; 5. Top cover; 50. Arc through hole; 51. Groove. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0026] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0030] Reference Figure 1 and Figure 2 , Figure 1 FIG. Figure 2 shows a perspective view of a ribbon cartridge 1 provided by an embodiment of the present utility model;

[0031] As Figure 1 and Figure 2 shown, the technical solution adopted by the present utility model is a ribbon cartridge 1, including a bottom case 2. Among them, the bottom case 2 extends along a first direction ( Figure 1 shown as the X direction in Figure 1 ), includes a placement cavity 20, and has an opening at the top. A supply shaft 21, a take-up reel 22, and a lifting device 3 are arranged in the placement cavity 20. The supply shaft 21 and the take-up reel 22 are arranged at intervals along the first direction, both extend along a second direction ( Figure 1 shown as the Z direction in

[0032] ), and can rotate circumferentially (

[0033] shown as the θ direction in ), and are used for winding the carbon ribbon.

[0032] The lifting device 3 is arranged between the supply shaft 21 and the take-up reel 22, and includes a driving assembly 30 and a guiding block 4. The guiding block 4 is provided with a transmission channel 40 adapted to the carbon ribbon. The driving assembly 30 is used to drive the guiding block 4 to rotate circumferentially relative to the take-up reel 22 to increase the transmission path of the carbon ribbon. The first direction is perpendicular to the second direction, and the circumferential direction surrounds the second direction.

[0033] The ribbon cartridge 1 provided by the present application has a carbon ribbon transmitted from the supply shaft 21 to the take-up reel 22 through the transmission channel 40 in the guide block 4. By setting the driving assembly 30 to change the position of the guide block 4, the transmission path of the carbon ribbon between the supply shaft 21 and the take-up reel 22 is increased, and then a certain tension is automatically applied to the carbon ribbon during transmission, avoiding problems such as jamming and deviation of the ribbon cartridge 1 when discharging the ribbon. It has the characteristics of simple structure and convenient operation, and is practical.

[0034] In some embodiments, referring to Figure 1 and Figure 2 , the driving assembly 30 includes a sliding part 31. The sliding part 31 includes an arc-shaped guide rail 32 and an arc-shaped slider 33. The arc-shaped guide rail 32 is concentrically arranged with the take-up reel 22. The bottom of the arc-shaped slider 33 is slidably matched with the arc-shaped guide rail 32, and the top is connected to the bottom of the guide block 4.

[0035] The driving assembly 30 further includes an adapter part 34. The adapter part 34 includes a buckle 35, an adapter 36 and an adjusting plate 37. The buckle 35 is rotatably arranged on the top of the take-up reel 22. The two ends of the adapter 36 are respectively connected to the buckle 35 and the adjusting plate 37. The bottom of the adjusting plate 37 is connected to the guide block 4 and is used to drive the guide block 4 to slide along the arc-shaped guide rail 32 by rotating the adjusting plate 37.

[0036] Exemplarily, the buckle 35 can be snap-fixed to the top of the take-up reel 22 and can rotate relative to the take-up reel 22. Since the rotation of the guide block 4 is circumferential rotation with the take-up reel 22 as the origin, the arc-shaped guide rail 32 and the arc-shaped slider 33 need to be adaptively arranged as arcs, so that the position of the guide block 4 can be changed by moving the top of the adjusting plate 37.

[0037] In some embodiments, referring to Figure 1 and Figure 2 , the ribbon cartridge 1 further includes a top cover 5. The top cover 5 is arranged above the top cover 5 along the second direction and is used to close the opening. The top cover 5 is provided with an arc-shaped through hole 50 corresponding to the arc-shaped guide rail 32, and the top of the adjusting plate 37 passes through the arc-shaped through hole 50.

[0038] Exemplarily, the arc-shaped through hole 50 and the adjusting plate 37 corresponding to the arc-shaped through hole 50 are arranged in an arc shape, and the top of the adjusting plate 37 passes through the arc-shaped through hole 50 to facilitate the movement adjustment of the guide block 4.

[0039] In some embodiments, referring to Figure 1 and Figure 2 , the top of the side wall of the adjusting plate 37 facing the take-up reel 22 is provided with an elastic telescopic ball head 38.

[0040] The side wall of the arc-shaped through hole 50 close to the winding shaft 22 is provided with a plurality of grooves 51 at intervals, and each groove 51 is correspondingly arranged with the elastic telescopic ball head 38 for abutting and limiting with the elastic telescopic ball head 38.

[0041] Exemplarily, the positions where the plurality of grooves 51 are provided correspond to the positions of different guiding blocks 4, that is, the transmission paths of different ribbons between the supply shaft 21 and the winding shaft 22, so as to adapt to different transmission requirements. When it is necessary to change the position of the guiding block 4, an external force is applied to move the adjusting plate 37, and the elastic telescopic ball head 38 is forced to telescopically move inward. When it moves to the corresponding groove 51, the elastic telescopic ball head 38 elastically resumes its original shape, and the groove 51 abuts and limits with the elastic telescopic ball head 38, so that the guiding block 4 is kept in this position.

[0042] In some embodiments, referring to Figure 1 and Figure 2 , the projections of the guiding block 4 and the transmission channel 40 along the second direction are both arc-shaped.

[0043] Exemplarily, both the guiding block 4 and the transmission channel 40 are arc-shaped, and the transmission of the ribbon at both ends of the guiding block 4 is smoother. If both the guiding block 4 and the transmission channel 40 are arranged in a straight line, the ribbon may be scratched at both ends of the guiding block 4, affecting the normal use of the ribbon.

[0044] In some embodiments, referring to Figure 1 and Figure 2 , a plurality of positioning columns 23 are further provided in the placement cavity 20, and each positioning column 23 extends along the second direction. A plurality of positioning pins corresponding to the positioning columns 23 are provided at the bottom of the top cover 5 for plugging and matching with the positioning columns 23.

[0045] Exemplarily, the top cover 5 and the bottom box are fixed by plugging and matching the positioning pins with the positioning columns 23.

[0046] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A ribbon cassette, characterized in that: include: The bottom shell extends along the first direction, comprises a placement cavity, and has an opening at the top; a supply shaft, a winding shaft and a lifting device are arranged in the placement cavity; The supply shaft and the take-up shaft are arranged at intervals along the first direction, both extend in the second direction, and can rotate in the circumferential direction, and are used for winding the carbon ribbon; The lifting device is arranged between the supply shaft and the winding shaft, and includes a driving assembly and a guide block; the guide block is provided with a transmission channel adapted to the carbon ribbon, and the driving assembly is used to drive the guide block to rotate circumferentially relative to the winding shaft to increase the transmission path of the carbon ribbon, the first direction is perpendicular to the second direction, and the circumference surrounds the second direction.

2. The ribbon cassette according to claim 1, characterized in that: The driving assembly includes a sliding part; the sliding part includes an arc guide rail and an arc slider; the arc guide rail is arranged cocentrically with the winding shaft; the bottom of the arc slider is slidably matched with the arc guide rail, and the top is connected to the bottom of the guide block.

3. The ribbon cassette according to claim 2, characterized in that: The driving assembly also includes a conversion part; the conversion part includes a buckle, an adapter and an adjustment plate; the buckle is rotatably arranged on the top of the winding shaft, the two ends of the adapter are respectively connected to the buckle and the adjustment plate, and the bottom of the adjustment plate is connected to the guide block, which is used to drive the guide block to slide along the arc guide rail by rotating the adjustment plate.

4. The ribbon cassette according to claim 3, characterized in that: It also includes a top cover; the top cover is arranged above the top cover along the second direction to close the opening; the top cover is provided with an arc-shaped through hole corresponding to the arc-shaped guide rail, and the top of the adjustment plate is passed through the arc-shaped through hole.

5. The ribbon cassette according to claim 3, characterized in that: An elastic telescopic ball head is arranged on the top of the side wall of the adjusting plate facing the winding shaft.

6. The ribbon cassette according to claim 5, characterized in that: A plurality of grooves are arranged at intervals on the side wall of the arc-shaped through hole close to the winding shaft, and each of the grooves is arranged corresponding to the elastic telescopic ball head and is used for abutting and limiting with the elastic telescopic ball head.

7. The ribbon cassette according to claim 1, characterized in that: Projections of the guide block and the transmission channel along the second direction are both arc-shaped.

8. The ribbon cassette according to claim 4, characterized in that: A plurality of positioning posts are also provided in the placement cavity, and each of the positioning posts extends along the second direction; a plurality of positioning pins corresponding to the positioning posts are provided at the bottom of the top cover for plugging and cooperating with the positioning posts.

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