Thermal transfer printer core module lifting mechanism

Abstract

The present invention relates to a lifting mechanism for a thermal transfer printer core module, which includes a core support, a printing module, a cam wrench, a cam support, a cam groove and a connecting rod. The printing module is installed on the core support through a first through-axis, the cam support is installed on the core support through a third through-axis, the connecting rod is arranged on the cam support, the cam wrench is fixed on the cam support, an ear plate is provided on the printing module, the cam support and the ear plate are connected by the connecting rod, an arc-shaped cam groove is provided on the ear plate, and the connecting rod passes through the cam groove and is connected to the cam support. Through the reciprocating movement of the connecting rod in the cam groove, the printing module of the present invention realizes stroke amplification, so that the flipping amplitude of the printing module exceeds the lifting distance of the vertical line of the cam wrench, improving the utilization rate of the internal space of the thermal transfer printer.

Description

Technical Field

[0001] The present invention relates to a thermal transfer printer, and more specifically, to a lifting mechanism for a thermal transfer printer core module. Background Art

[0002] The structure of the lifting mechanism of the existing thermal transfer printer core module is as Figure 1-2 shown. The cam wrench 1 is located below the printing module 2. The lifting of the printing module 2 is realized by the rotation of the cam wrench 1. The rotation angle of the printing module 2 is limited by the rotation angle of the cam wrench 1. Therefore, the lifting space of the printing module 2 inside the machine is limited. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a lifting mechanism for a thermal transfer printer core module that can increase the lifting space of the printing module.

[0004] The technical solution adopted by the present invention to solve its technical problems is: to construct a lifting mechanism for a thermal transfer printer core module, including a core bracket, a printing module, a cam wrench, a cam bracket, a cam groove, and a connecting rod. The printing module is installed on the core bracket through a first through shaft. The cam bracket is installed on the core bracket through a third through shaft. The connecting rod is arranged on the cam bracket. The cam wrench is fixed on the cam bracket. An ear plate is provided on the printing module. The cam bracket and the ear plate are connected through the connecting rod. An arc-shaped cam groove is provided on the ear plate. The connecting rod passes through the cam groove and is connected to the cam bracket. Press down the cam wrench to make the cam bracket rotate upward. The connecting rod moves inside the cam groove to push the printing module to rotate upward. During the process of the printing module rotating upward, the connecting rod reciprocates in the cam groove to achieve stroke amplification.

[0005] In the above solution, the cam wrench is sleeved on the third through shaft, and the cam wrench is fixedly connected to the cam bracket through a fixing rod.

[0006] In the above solution, a hook claw and a tension spring are further included. The hook claw catches the printing module. The hook claw is installed on the core bracket through a second through shaft. One end of the tension spring is connected to the hook claw, and the other end of the tension spring is fixed on the core bracket.

[0007] In the above solution, a fixing column is provided on the hook claw, and the tension spring is hooked on the fixing column.

[0008] In the above solution, a positioning column is provided on the printing module, and the positioning column is stuck in the fixing groove of the hook claw.

[0009] In the above solution, a support frame for supporting the printing module is provided inside the core bracket.

[0010] Implementing the lifting mechanism of the thermal transfer printer core module of the present invention has the following beneficial effects:

[0011] 1. The printing module of the present invention realizes stroke amplification through the reciprocating movement of the connecting rod in the cam groove, enabling the flipping amplitude of the printing module to exceed the lifting distance of the vertical line of the cam wrench, thereby improving the utilization rate of the internal space of the thermal transfer printer;

[0012] 2. The lifting mechanism of the thermal transfer printer core module of the present invention can make the space compact, enabling the printing module to be arranged in a forward tilt, so that the paper output direction of the printing paper faces the user, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0014] Figure 1 is a schematic structural diagram of the thermal transfer printer core module in the falling state in the prior art;

[0015] Figure 2 is a schematic structural diagram of the thermal transfer printer core module in the rising state in the prior art;

[0016] Figures 3-5 is a schematic diagram of different angles of the lifting mechanism of the thermal transfer printer core module of the present invention in the falling state;

[0017] Figures 6-8 is a schematic diagram of different angles of the lifting mechanism of the thermal transfer printer core module of the present invention in the rising state;

[0018] Figure 9 is a cross-sectional view of the lifting mechanism of the thermal transfer printer core module of the present invention in the falling state;

[0019] Figure 10 is a cross-sectional view of the lifting mechanism of the thermal transfer printer core module of the present invention in the rising state;

[0020] Figures 11-13 is a schematic diagram of the rising process of the printing module of the lifting mechanism of the thermal transfer printer core module of the present invention;

[0021] Figure 14 is a schematic diagram of the cam groove. DETAILED DESCRIPTION OF THE INVENTION

[0022] In order to have a clearer understanding of the technical features, objectives, and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the drawings.

[0023] As Figures 3-14As shown in the figure, the lifting mechanism of the thermal transfer printer core module 2 of the present invention includes a core support 3, a printing module 2, a cam wrench 1, a cam support 11, a cam groove 15, and a connecting rod 12.

[0024] The printing module 2 is installed on the core support 3 through a first through-shaft 4. The cam support 11 is installed on the core support 3 through a third through-shaft 6. The connecting rod 12 is arranged on the cam support 11. The cam wrench 1 is fixed on the cam support 11. An ear plate 14 is provided on the printing module 2. The cam support 11 and the ear plate 14 are connected through the connecting rod 12. An arc-shaped cam groove 15 is provided on the ear plate 14. The connecting rod 12 passes through the cam groove 15 and is connected to the cam support 11.

[0025] Press down the cam wrench 1 to make the cam support 11 rotate upward. The connecting rod 12 moves inside the cam groove 15 to push the printing module 2 to rotate upward. During the upward rotation of the printing module 2, the connecting rod 12 reciprocates in the cam groove 15 to achieve stroke amplification.

[0026] Further, in this embodiment, the cam wrench 1 is sleeved on the third through-shaft 6, and the cam wrench 1 is fixedly connected to the cam support 11 through a fixing rod 13.

[0027] Further, this embodiment also includes a hook claw 7 and a tension spring 8. The hook claw 7 catches the printing module 2. The hook claw 7 is installed on the core support 3 through a second through-shaft 5. One end of the tension spring 8 is connected to the hook claw 7, and the other end of the tension spring 8 is fixed on the core support 3. A fixing column 9 is provided on the hook claw 7, and the tension spring 8 is hooked on the fixing column 9. A positioning column 16 is provided on the printing module 2, and the positioning column 16 can be stuck in the fixing groove of the hook claw 7 to achieve locking.

[0028] Further, a support frame 10 for supporting the printing module 2 is provided inside the core support 3.

[0029] As Figure 11 shown, when the printing module 2 falls to the lowest point, the connecting rod 12 is located at the upper end A of the cam groove 15. As Figure 12 shown, during the upward movement of the printing module 2, the connecting rod 12 moves to the lower end B of the cam groove 15. As Figure 13 shown, when the printing module 2 rises to the specified position, the connecting rod 12 is located at the upper end A of the cam groove 15. During the process of the printing module 2 rising from the lowest point to the highest point, the connecting rod 12 realizes a reciprocating motion of A - B - A.

[0030] The working principle of the present invention is as follows:

[0031] When pressing down the cam wrench 1, the cam bracket 11 rotates upward, and the connecting rod 12 pushes the printing module 2 to rotate upward inside the cam groove 15. During the upward rotation of the printing module 2, the connecting rod 12 moves back and forth in the cam groove 15. During the rising process, the connecting rod 12 will move to the lower end of the cam groove 15, and when continuing to rise, the connecting rod 12 moves from the lower end to the upper end of the cam groove 15. The reciprocating motion of the connecting rod 12 in the cam groove 15 realizes stroke amplification, enabling the printing module 2 to flip and lift beyond the vertical line, improving the utilization rate of the internal space of the thermal transfer printer. The positioning post 16 on the printing module 2 slides into the fixing groove on the hook claw 7 after passing through the inclined surface of the hook claw 7. At the same time, the tension spring 8 resets the hook claw 7 to the initial state, fixing the printing module 2 at the highest position. Unlock and toggle the hook claw 7, and the positioning post 16 of the printing module 2 disengages from the fixing groove of the hook claw 7, and the printing module 2 resets and falls onto the support frame 10 under the action of gravity.

[0032] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the purpose of the present invention and the scope protected by the claims. All of these fall within the protection scope of the present invention.

Claims

1. A lifting mechanism for a thermal transfer printer core module, characterized in that It includes a movement bracket, a printing module, a cam wrench, a cam bracket, a cam groove and a connecting rod. The printing module is mounted on the movement bracket through a first through-shaft. The cam bracket is mounted on the movement bracket through a third through-shaft. The connecting rod is arranged on the cam bracket. The cam wrench is fixed on the cam bracket. An ear plate is provided on the printing module. The cam bracket and the ear plate are connected by the connecting rod. An arc-shaped cam groove is provided on the ear plate. The connecting rod passes through the cam groove and is connected to the cam bracket. Press down the cam wrench to make the cam bracket rotate upward. The connecting rod moves inside the cam groove to push the printing module to rotate upward. During the process of the printing module rotating upward, the connecting rod reciprocates in the cam groove to achieve stroke amplification. The cam wrench is sleeved on the third through-shaft. The cam wrench is fixedly connected to the cam bracket through a fixing rod. A support frame for supporting the printing module is provided inside the movement bracket.

2. The lifting mechanism of the thermal transfer printer core module according to claim 1, characterized in that It further includes a hook claw and a tension spring. The hook claw catches the printing module. The hook claw is mounted on the movement bracket through a second through-shaft. One end of the tension spring is connected to the hook claw, and the other end of the tension spring is fixed on the movement bracket.

3. The lifting mechanism of the thermal transfer printer core module according to claim 2, wherein, A fixing post is provided on the hook claw, and the tension spring is hooked on the fixing post.

4. The lifting mechanism of the thermal transfer printer core module according to claim 2, characterized in that, A positioning post is provided on the printing module, and the positioning post is stuck in the fixing groove of the hook claw.

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