Movement structure and printer

Abstract

According to the technical scheme, the core structure comprises a support and a rubber roller, a clamping groove is formed in the support, a shaft sleeve is arranged at the end of the rubber roller, the rubber roller is detachably connected into the clamping groove through the shaft sleeve, a head piece plate is movably arranged on the support, and a spring is arranged between the head piece plate and the support. A barb groove is formed in the inner wall of one side of the clamping groove in the direction away from the head piece plate, a first guide face is arranged on the inner wall of the other side of the clamping groove and inclines towards the barb groove from top to bottom, and the spring pushes the head piece plate to abut against the rubber roller, so that a shaft sleeve at the end of the rubber roller is clamped into the barb groove; the rubber roller can be effectively prevented from moving in the rotating process, smooth rotation of the rubber roller is guaranteed, the overall performance and the printing quality of the printer are improved, and the rubber roller is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, and more particularly to a core structure and a printer. Background Art

[0002] In the field of printer technology, the printer's core component, the structure and performance of the printer's movement, is directly related to the printer's overall operating efficiency and print quality. Traditional printer movement structures, particularly those for thermal printers, typically utilize a groove in the movement bracket. A rubber roller is mounted in the groove via a sleeve or bearing, allowing the roller to rotate and drive the thermal paper.

[0003] To prevent the rubber roller from moving within the groove, various improvements have been proposed for traditional printer mechanisms. These include adding a protruding compression spring to the mechanism bracket to abut and restrain the rubber roller; or installing a retractable cover that fits within the groove and snaps shut after the rubber roller is installed to retain the roller in place. However, these solutions are not only complex, increasing the difficulty of installation and maintenance, but contact between the rubber roller and the retaining structure can also affect the roller's rotational performance, further limiting the printer's overall performance. Utility Model Content

[0004] In order to solve the above problems, the present invention provides the following technical solutions:

[0005] A movement structure includes a bracket and a rubber roller, a clamping groove is provided on the bracket, a shaft sleeve is provided at the end of the rubber roller, the rubber roller is detachably connected to the clamping groove through the shaft sleeve, a head plate is movably provided on the bracket, a spring is provided between the head plate and the bracket, an inverted hook groove is provided on the inner wall of one side of the clamping groove in the direction away from the head plate, and a first guide surface is provided on the inner wall of the other side of the clamping groove, the first guide surface is inclined from top to bottom in the direction of the inverted hook groove, and the spring pushes the head plate to abut against the rubber roller, thereby clamping the shaft sleeve at the end of the rubber roller into the inverted hook groove.

[0006] The present invention is further configured as follows: the clamping groove is provided with a second guide surface above the undercut groove, and the second guide surface is inclined from top to bottom into the clamping groove.

[0007] The present invention is further configured such that: the bottom of the clamping groove is a horizontal surface.

[0008] The utility model is further configured as follows: a slideway is provided on the bracket along the length direction of the spring, and a slider protrudes from the head plate toward the slideway and is slidably connected to the slideway.

[0009] The utility model is further configured as follows: an inner wall of the bracket is provided with a mounting groove, one end of the spring is fixed in the mounting groove, and the other end is fixed to the head plate.

[0010] The utility model is further configured as follows: both ends of the bracket are provided with a clamping groove, both ends of the rubber roller are provided with a shaft sleeve, and the rubber roller is detachably connected to the clamping groove through the shaft sleeve.

[0011] The utility model is further configured as follows: a motor is provided on the bracket, a driving gear is connected to the output shaft of the motor, and a driven gear meshing with the driving gear is connected to the rubber roller.

[0012] In addition, the present invention also provides a printer, comprising the above-mentioned core structure.

[0013] Compared with the prior art, the present invention has at least the following advantages:

[0014] 1. By creating an undercut groove on the side wall of the snap-in slot, the rubber roller is pressed into the slot and then pushed into the undercut by a spring, securing the roller. Simultaneously, the sleeve allows the roller to rotate. This structure not only effectively prevents movement of the rubber roller during rotation, ensuring smooth rotation and improving the overall performance and print quality of the printer, but also offers a simple structure and easy operation.

[0015] 2. Set the first guide surface and the second guide surface, and set the bottom of the clamping groove as a horizontal surface. Through structural coordination, the rubber roller can be pressed into the clamping groove more easily, and the head plate can accurately push the rubber roller into the undercut groove.

[0016] 3. The slideway and the slider cooperate to guide the movement of the head plate, so that the head plate always moves toward the direction of the rubber roller, which can avoid the spring from bending and being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an overall schematic diagram of the first embodiment;

[0018] Figure 2 is an exploded view of the first embodiment;

[0019] Figure 3 is a side view of the first embodiment;

[0020] Figure 4 It is a top view of the first embodiment.

[0021] Description of reference numerals:

[0022] 1. Bracket; 2. Rubber roller; 3. Bushing; 4. Snap-fit ​​groove; 5. Undercut groove; 6. Head plate; 7. Spring; 8. First guide surface; 9. Second guide surface; 10. Slideway; 11. Mounting groove; 12. Motor; 13. Driven gear. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] A movement structure, such as Figures 1 to 3 As shown, it includes a bracket 1 and a rubber roller 2, a clamping groove 4 is provided on the bracket 1, a shaft sleeve 3 is provided at the end of the rubber roller 2, and the rubber roller 2 is detachably connected to the clamping groove 4 through the shaft sleeve 3, a head plate 6 is movably provided on the bracket 1, a spring 7 is provided between the head plate 6 and the bracket 1, an inner wall on one side of the clamping groove 4 is provided with a hook groove 5 in the direction away from the head plate 6, and an inner wall on the other side of the clamping groove 4 is provided with a first guide surface 8, and the first guide surface 8 is inclined from top to bottom in the direction of the hook groove 5, and the spring 7 pushes the head plate 6 to abut against the rubber roller 2, thereby pushing the rubber roller 2 in the direction of the hook groove, so that the shaft sleeve 3 at the end of the rubber roller 2 is clamped into the hook groove 5.

[0026] After the rubber roller 2 is pressed into the clamping groove 4, the thrust of the spring 7 is used to push the rubber roller 2 into the hook groove 5, so that the rubber roller 2 cannot move out of the clamping groove 4 in the vertical direction, thereby fixing the rubber roller 2. At the same time, due to the provision of the shaft sleeve 3, the rubber roller 2 and the shaft sleeve 3 rotate relative to each other, and the shaft sleeve 3 is fixed in the clamping groove 4, so the rubber roller 2 can keep rotating.

[0027] The first guide surface 8 and the undercut groove 5 are respectively located on the left and right sides of the inner wall of the clamping groove 4. The bottom of the clamping groove 4 is a horizontal plane, which makes it easier for the spring 7 to push the rubber roller 2 into the undercut groove 5. When the shaft sleeve 3 is clamped into the undercut groove 5, the rear of the shaft sleeve 3 is simultaneously in contact with the first guide surface 8. The bottom of the clamping groove 4, the first guide surface 8 and the undercut groove 5 half wrap the rubber roller 2. Under the obstruction of the undercut groove 5, the rubber roller 2 cannot move directly upward. It needs to overcome the elastic force of the spring 7 and move in the direction of the first guide surface 8 to exit the undercut groove 5.

[0028] The clamping groove 4 is provided with a second guide surface 9 above the undercut groove 5, and the second guide surface 9 is inclined from top to bottom into the clamping groove 4. When the rubber roller 2 is pressed downward, it can slide into the groove bottom along the second guide surface 9, and the second guide surface 9 is formed by the part protruding outward from the undercut groove 5 to form an inclination.

[0029] A slide 10 is provided on the bracket 1 along the length direction of the spring 7. A slider protrudes from the head plate 6 toward the slide 10 and is slidably connected to the slide 10. The head plate 6 is slidably connected to the inner side of the bracket 1 through the cooperation of the slide 10 and the slider. The slide 10 serves as a guide for the movement of the head plate 6, so that the head plate 6 always moves toward the direction of the rubber roller 2, and the spring 7 will not be subjected to vertical force, thereby avoiding bending and damage of the spring 7.

[0030] like Figure 4 As shown, the inner wall of the bracket 1 is provided with a mounting groove 11, which is formed by the inner wall of the bracket 1 protruding outward. One end of the spring 7 is fixed in the mounting groove 11, and the other end is fixed to the head plate 6. The mounting groove 11 plays a giving effect, thereby increasing the installation space of the spring 7.

[0031] like Figure 2 As shown, in this embodiment, both ends of the bracket 1 are provided with a clamping groove 4, and both ends of the rubber roller 2 are provided with a shaft sleeve 3, which is used to be fixed in the clamping groove 4. By using external force to make the rubber roller 2 overcome the elastic force of the spring 7 and move outward along the first guide surface 8, the shaft sleeve 3 can be separated from the clamping groove 4, so that the rubber roller 2 can be detachably connected to the clamping groove 4 through the shaft sleeve 3.

[0032] A motor 12 is fixed to the bottom of the bracket 1. A driving gear is connected to the output shaft of the motor 12. A driven gear 13, meshing with the driving gear, is connected to the rubber roller 2. When the motor 12 rotates the driving gear, the meshing driven gear 13 drives the rubber roller 2, achieving the transmission and printing functions. The driving gear can be a single gear or a gear set.

[0033] Second embodiment:

[0034] A printer, not shown in the figure, includes the core structure described in the first embodiment.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included in the scope of protection of the present invention.

Claims

1. A movement structure, characterized in that: The invention comprises a bracket (1) and a rubber roller (2), wherein the bracket (1) is provided with a clamping groove (4), the end of the rubber roller (2) is provided with a shaft sleeve (3), the rubber roller (2) is detachably connected to the clamping groove (4) through the shaft sleeve (3), a head plate (6) is movably provided on the bracket (1), a spring (7) is provided between the head plate (6) and the bracket (1), an inverted hook groove (5) is provided on the inner wall of one side of the clamping groove (4) in a direction away from the head plate (6), and a first guide surface (8) is provided on the inner wall of the other side of the clamping groove (4), the first guide surface (8) is inclined from top to bottom in the direction of the inverted hook groove (5), and the spring (7) pushes the head plate (6) to contact the rubber roller (2), thereby clamping the shaft sleeve (3) at the end of the rubber roller (2) into the inverted hook groove (5).

2. A movement structure according to claim 1, characterized in that: The clamping groove (4) is provided with a second guide surface (9) above the undercut groove (5), and the second guide surface (9) is inclined from top to bottom into the clamping groove (4).

3. The movement structure according to claim 2, characterized in that: The bottom of the clamping groove (4) is a horizontal surface.

4. The movement structure according to claim 1, characterized in that: A slideway (10) is provided on the bracket (1) along the length direction of the spring (7), and a slider protrudes from the head plate (6) toward the slideway (10) and is slidably connected to the slideway (10).

5. The movement structure according to claim 4, characterized in that: The inner wall of the bracket (1) is provided with a mounting groove (11), one end of the spring (7) is fixed in the mounting groove (11), and the other end is fixed to the head plate (6).

6. The movement structure according to claim 1, characterized in that: Both ends of the bracket (1) are provided with a clamping groove (4), and both ends of the rubber roller (2) are provided with a shaft sleeve (3), and the rubber roller (2) is detachably connected to the clamping groove (4) via the shaft sleeve (3).

7. The movement structure according to claim 1, characterized in that: The bracket (1) is provided with a motor (12), the output shaft of the motor (12) is connected to a driving gear, and the rubber roller (2) is connected to a driven gear (13) meshing with the driving gear.

8. A printer, characterized in that: The invention comprises the movement structure according to any one of claims 1 to 7.

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