Side edge pressing block mechanism of thermal transfer printer

Abstract

The utility model discloses a side edge pressing block mechanism of a thermal transfer printer, which comprises a printer body, a first shaft base is rotatably arranged at the upper part of the printer body, a cover plate is fixedly arranged at the top end of the first shaft base, a second shaft base is fixedly arranged at the lower part of the cover plate, and a rotating rod is rotatably arranged on the outer side of the second shaft base. A second sliding groove is formed in the bottom end of the inner wall of the printer body, a limiting sliding block is arranged in the second sliding groove in a reciprocating sliding mode, a groove is formed in the upper portion of the limiting sliding block, and a limiting plate is arranged in the groove in a sliding mode; by means of the scheme, the problem that in the using process, printing paper of different sizes cannot be evenly pressed according to using requirements, and the printing success rate is reduced is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal transfer printers, in particular to a side pressing block mechanism of a thermal transfer printer. Background Art

[0002] In the existing technology, the side pressure blocks mostly adopt a longitudinally arranged drive device solution. This design solution mostly uses a stepper motor or a servo motor, which is extremely expensive and occupies a large space. It is not suitable for thermal transfer printers. In addition, it is usually unable to maintain the clamping state when the power is off, which makes it easy for the printing medium to shift after the whole machine is powered off.

[0003] At the same time, the application number is 202223284876.2, which is a side pressing block mechanism of a thermal transfer printer, including a cam driving mechanism and a pressing block mechanism. The cam driving mechanism is provided with a guide block on one side of the cam, and a guide column is provided on one side of the pressing block mechanism. The guide column is sleeved in the guide block and can slide along the guide block. A spring is sleeved on the guide column, and the two ends of the spring are respectively connected to the guide block and the pressing block mechanism; the pressing block mechanism has a through hole, and the cam of the cam driving mechanism penetrates into the through hole and cooperates with the spring to drive the pressing block mechanism to reciprocate along the guide block. The side pressing block mechanism of the thermal transfer printer of the utility model can use the cam driving mechanism to intermittently drive the pressing block mechanism to press down and lift up. It has a simple structure and occupies very little space. Moreover, when the cam of the cam driving mechanism passes the dead point, the cam driving mechanism can be stopped, so that the driving pressing block can still maintain the state of pressing the printing medium. It has the advantages of convenient installation, simple transmission, low cost, and power failure will not change the pressing and lifting state.

[0004] However, in the implementation of the relevant technology, it was found that the above-mentioned problem exists as follows: a side pressure block mechanism of a thermal transfer printer cannot uniformly apply pressure to printing papers of different sizes according to usage requirements during use, thereby reducing the printing success rate.

[0005] To this end, we propose a side pressing block mechanism for a thermal transfer printer. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a side pressure block mechanism of a thermal transfer printer, which has the advantage of evenly applying pressure to printing papers of different sizes according to usage requirements during use, thereby improving the success rate of printing.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a side pressing block mechanism of a thermal transfer printer, comprising a printer body, a first shaft base is rotatably provided on the upper part of the printer body, a cover plate is fixedly provided on the top of the first shaft base, a second shaft base is fixedly provided on the lower part of the cover plate, a rotating rod is rotatably provided on the outer side of the second shaft base, a connecting rod is rotatably provided on the top of the rotating rod, and a limiting wheel is rotatably provided on the inner wall of the other end of the rotating rod.

[0008] Preferably, a second slide groove is provided at the bottom end of the inner wall of the printer body, a limit slider is provided inside the second slide groove for reciprocating sliding, a groove is provided on the upper part of the limit slider, a limit plate is provided inside the groove for sliding, and a second rotating wheel is rotatably provided at the lower part of the limit plate.

[0009] Preferably, a micro cylinder is fixedly provided on the inner wall of the cover plate, an extrusion column is fixedly provided on the output end of the micro cylinder, and the bottom end of the extrusion column is in contact with the top end of the limiting wheel.

[0010] Preferably, a first slide groove is provided at the lower part of the printer body, and a print head is provided inside the first slide groove for reciprocating sliding.

[0011] Preferably, a first rotating wheel is rotatably provided at the lower part of the printer body.

[0012] Preferably, a second spring is fixedly provided on the top end of the limiting plate, and the other end of the second spring is fixedly connected to the inner wall of the groove.

[0013] Preferably, a first rotating plate is rotatably provided on the outer side of the connecting rod, a first spring is fixedly provided on the top end of the first rotating plate, and a second rotating plate is fixedly provided on the other end of the first spring.

[0014] Preferably, a third shaft base is rotatably provided on the outer side of the second rotating plate, and the top end of the third shaft base is fixedly connected to the cover plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model sets a limiting wheel, and the output end of the micro-cylinder moves to drive the extrusion column to move downward, and the extrusion column moves downward to drive the limiting wheel to move downward, so that the outer side of the limiting wheel is fitted with the top of the printing paper, and the limiting wheel moves downward to drive the rotating rod to rotate, and the rotation of the rotating rod drives the connecting rod to move, and the movement of the connecting rod drives the first rotating plate to rotate, the first spring undergoes elastic deformation to stretch and contract to drive the second rotating plate to rotate on the inner wall of the third axis base, and the print head slides back and forth inside the first slide slot to transfer the printing paper, thereby achieving uniform pressure on printing papers of different sizes according to usage requirements, thereby improving the success rate of printing.

[0017] 2. The utility model sets a limit slider, puts the printing paper into the inside of the printer body, adjusts the limit slider according to the size of the printing paper, slides the limit slider inside the second slide groove, fits the upper inner wall of the limit slider with the side of the printing paper, and according to the thickness of the printing paper, the limit plate slides inside the groove, the second spring undergoes elastic deformation to stretch and contract, and fits the outer side of the second rotating wheel with the top of the printing paper, thereby achieving the purpose of fixed limit adjustment according to the size of different printing papers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the limit slider of the utility model;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the A structure.

[0022] In the figure: 1. printer body; 2. first axis base; 3. cover plate; 4. second axis base; 5. rotating rod; 6. connecting rod; 7. first rotating plate; 8. first spring; 9. third axis base; 10. limiting wheel; 11. extrusion column; 12. micro cylinder; 13. first rotating wheel; 14. first slide groove; 15. print nozzle; 16. second slide groove; 17. limiting slider; 18. groove; 19. limiting plate; 20. second spring; 21. second rotating wheel; 22. second rotating plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 4As shown, the utility model provides a side pressing block mechanism of a thermal transfer printer, including a printer body 1, a first shaft base 2 is rotatably provided on the upper part of the printer body 1, a cover plate 3 is fixedly provided on the top of the first shaft base 2, a second shaft base 4 is fixedly provided on the lower part of the cover plate 3, a rotating rod 5 is rotatably provided on the outer side of the second shaft base 4, a connecting rod 6 is rotatably provided on the top of the rotating rod 5, and a limiting wheel 10 is rotatably provided on the inner wall of the other end of the rotating rod 5, so that the outer side of the limiting wheel 10 is fitted with the top of the printing paper.

[0025] Specifically, a second slide groove 16 is provided at the bottom end of the inner wall of the printer body 1, a limit slider 17 is provided inside the second slide groove 16 for reciprocating sliding, a groove 18 is provided on the upper part of the limit slider 17, a limit plate 19 is provided inside the groove 18 for sliding, a second rotating wheel 21 is rotatably provided at the lower part of the limit plate 19, the outer side of the second rotating wheel 21 is fitted with the top of the printing paper, thereby achieving the purpose of fixed limit adjustment according to the size of different printing papers.

[0026] Furthermore, a micro cylinder 12 is fixedly provided on the inner wall of the cover plate 3, and the output end of the micro cylinder 12 moves to drive the extrusion column 11 to move downward. The output end of the micro cylinder 12 is fixedly provided with an extrusion column 11, and the bottom end of the extrusion column 11 is fitted with the top end of the limiting wheel 10. The downward movement of the extrusion column 11 drives the limiting wheel 10 to move downward.

[0027] Furthermore, a first slide groove 14 is provided at the lower part of the printer body 1 , and a print head 15 is provided inside the first slide groove 14 for reciprocating sliding. The print head 15 reciprocates inside the first slide groove 14 to transfer the printing paper.

[0028] It is worth noting that a first rotating wheel 13 is rotatably provided at the lower part of the printer body 1 , and the first rotating wheel 13 drives the printing paper to move.

[0029] It is worth noting that a second spring 20 is fixedly provided on the top of the limiting plate 19 , and the other end of the second spring 20 is fixedly connected to the inner wall of the groove 18 , and the second spring 20 undergoes elastic deformation to stretch and contract.

[0030] It is worth mentioning that a first rotating plate 7 is rotatably provided on the outer side of the connecting rod 6, a first spring 8 is fixedly provided on the top end of the first rotating plate 7, and a second rotating plate 22 is fixedly provided on the other end of the first spring 8. The first spring 8 undergoes elastic deformation to stretch and contract to drive the second rotating plate 22 to rotate on the inner wall of the third axis base 9.

[0031] It is worth emphasizing that a third shaft base 9 is rotatably provided on the outer side of the second rotating plate 22 , and the top end of the third shaft base 9 is fixedly connected to the cover plate 3 , and the rotation of the cover plate 3 drives the first shaft base 2 to rotate on the upper inner wall of the printer body 1 .

[0032] Among them, the micro cylinder 12 is the prior art and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail; the "front, back, left and right" perspectives of the device are as follows: Figure 1 The direction shown in the figure is used as the reference.

[0033] Working principle: When in use, the staff puts the printing paper into the printer body 1, adjusts the limit slider 17 according to the size of the printing paper, slides the limit slider 17 inside the second slide groove 16, and fits the upper inner wall of the limit slider 17 with the side of the printing paper. According to the thickness of the printing paper, the limit plate 19 slides inside the groove 18, and the second spring 20 undergoes elastic deformation to stretch and shrink, and fits the outer side of the second rotating wheel 21 with the top of the printing paper, thereby achieving the purpose of fixed limit adjustment according to the size of different printing papers, and rotating the cover plate 3. The rotation of the cover plate 3 drives the first shaft base 2 to rotate on the upper inner wall of the printer body 1, and the micro cylinder 12 is started. The micro cylinder 1 2, the output end moves and drives the squeezing column 11 to move downward, and the squeezing column 11 moves downward and drives the limiting wheel 10 to move downward, so that the outer side of the limiting wheel 10 is fitted with the top of the printing paper, and the limiting wheel 10 moves downward and drives the rotating rod 5 to rotate on the outer side of the second axis base 4, and the rotating rod 5 rotates and drives the connecting rod 6 to move, and the connecting rod 6 moves and drives the first rotating plate 7 to rotate, and the first spring 8 undergoes elastic deformation to stretch and contract and drives the second rotating plate 22 to rotate on the inner wall of the third axis base 9, and the printing nozzle 15 slides back and forth inside the first slide groove 14 to transfer the printing paper, so as to achieve uniform pressure on printing papers of different sizes according to usage requirements, thereby improving the success rate of printing.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A side pressing block mechanism of a thermal transfer printer, comprising a printer body (1), characterized in that: A first shaft base (2) is rotatably provided on the upper part of the printer body (1), a cover plate (3) is fixedly provided on the top of the first shaft base (2), a second shaft base (4) is fixedly provided on the lower part of the cover plate (3), a rotating rod (5) is rotatably provided on the outer side of the second shaft base (4), a connecting rod (6) is rotatably provided on the top of the rotating rod (5), and a limiting wheel (10) is rotatably provided on the inner wall of the other end of the rotating rod (5).

2. The side pressing block mechanism of a thermal transfer printer according to claim 1, characterized in that: A second slide groove (16) is provided at the bottom end of the inner wall of the printer body (1), a limit slider (17) is provided inside the second slide groove (16) for reciprocating sliding movement, a groove (18) is provided on the upper part of the limit slider (17), a limit plate (19) is provided inside the groove (18) for sliding movement, and a second rotating wheel (21) is rotatably provided at the lower part of the limit plate (19).

3. The side pressing block mechanism of a thermal transfer printer according to claim 1, characterized in that: A micro cylinder (12) is fixedly provided on the inner wall of the cover plate (3), an extrusion column (11) is fixedly provided on the output end of the micro cylinder (12), and the bottom end of the extrusion column (11) is in contact with the top end of the limiting wheel (10).

4. The side pressing block mechanism of a thermal transfer printer according to claim 1, characterized in that: A first slide groove (14) is provided at the bottom of the printer body (1), and a printing nozzle (15) is provided inside the first slide groove (14) for reciprocating sliding.

5. The side pressing block mechanism of a thermal transfer printer according to claim 1, characterized in that: A first rotating wheel (13) is rotatably provided at the lower part of the printer body (1).

6. The side pressing block mechanism of a thermal transfer printer according to claim 2, characterized in that: A second spring (20) is fixedly provided on the top end of the limiting plate (19), and the other end of the second spring (20) is fixedly connected to the inner wall of the groove (18).

7. The side pressing block mechanism of a thermal transfer printer according to claim 1, characterized in that: A first rotating plate (7) is rotatably provided on the outer side of the connecting rod (6), a first spring (8) is fixedly provided on the top end of the first rotating plate (7), and a second rotating plate (22) is fixedly provided on the other end of the first spring (8).

8. The side pressing block mechanism of a thermal transfer printer according to claim 7, characterized in that: A third shaft base (9) is rotatably provided on the outer side of the second rotating plate (22), and the top end of the third shaft base (9) is fixedly connected to the cover plate (3).

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