Movement and thermal printer

Abstract

The utility model relates to the technical field of thermal printers, and provides a machine core which comprises a base frame, a fixing frame, a TPH assembly, a rubber roller assembly, an elastic support and an elastic piece, the fixing frame is detachably connected to one side of the base frame, the two ends of the TPH assembly are rotationally connected to the base frame and the fixing frame in a limited mode respectively, and the TPH assembly is detachably connected with the base frame and the fixing frame; rotating grooves are formed in the base frame and the fixing frame, the two ends of the rubber roller assembly are placed in the rotating grooves, the two ends of the elastic support are rotationally connected to the base frame and the fixing frame correspondingly and located on the side, away from the rubber roller assembly, of the TPH assembly, and the two ends of the elastic piece abut against the elastic support and the TPH assembly correspondingly; a limiting groove is formed in the elastic support, the rubber roller assembly is located in the limiting groove, the limiting groove gives force to the rubber roller assembly towards one side of the TPH assembly, and one end of the elastic support is rotationally connected with the fixing frame in a limiting mode. Therefore, the machine core is simple in structure and convenient to disassemble and assemble.

Description

Technical Field

[0001] The present application relates to the field of thermal printers, and in particular to a movement and a thermal printer. Background Art

[0002] For the 8-inch portable thermal printer, the existing technology uses an up-and-down flip mode and an integrated mode for installation; in the up-and-down flip mode, the upper module (including TPH components, circuit drive board) and the lower module (including motor, transmission gear, rubber roller) are connected by a shaft, but the shaft mechanism increases the complexity of the design, and the flip structure needs to ensure good sealing to prevent dust from entering, which increases the difficulty of assembly; in the integrated mode, in theory, the assembly steps are reduced, but in actual operation, the debugging difficulty may be increased due to the high degree of integration. Once a component fails, it needs to be disassembled or replaced as a whole. After disassembly, it is difficult to install due to the high degree of integration.

[0003] Therefore, the present application studies a movement with a simple structure and easy disassembly and assembly. Utility Model Content

[0004] In order to simplify the structure of the movement and facilitate disassembly and assembly.

[0005] On the one hand, the present application provides a movement, which adopts the following technical solution:

[0006] A movement comprises a base frame, a fixing frame, a TPH assembly, a rubber roller assembly, an elastic bracket and an elastic member, wherein the fixing frame is detachably connected to one side of the base frame, and two ends of the TPH assembly are respectively connected to the base frame and the fixing frame in a limited rotation manner, and are detachably connected to the base frame and the fixing frame; a rotation groove is provided on the base frame and the fixing frame, and two ends of the rubber roller assembly are placed in the rotation groove; two ends of the elastic bracket are respectively connected to the base frame and the fixing frame in a limited rotation manner, and are located on a side of the TPH assembly away from the rubber roller assembly, and two ends of the elastic member are respectively abutted against the elastic bracket and the TPH assembly; a limiting groove is provided on the elastic bracket, and the rubber roller assembly is located in the limiting groove, and the limiting groove gives the rubber roller assembly a force toward one side of the TPH assembly, and one end of the elastic bracket is connected to the fixing frame in a limited rotation manner.

[0007] By adopting the above technical solution, during installation, it is only necessary to install one end of the elastic bracket and the TPH assembly on the base frame, and then fix the fixing frame to the base frame, and fix the other end of the elastic bracket and the TPH assembly to the fixing frame, and finally insert the rubber roller assembly into the limiting groove along the rotating groove. Due to the action of the elastic member, the limiting groove gives the rubber roller assembly a force toward the TPH assembly side to fix the rubber roller assembly, so the movement structure is simple and easy to install; when removing the rubber roller, it is only necessary to take the rubber roller out of the limiting groove, and when removing other components, it is only necessary to remove the fixing frame first, and then other components can be removed, so it is convenient to disassemble and assemble.

[0008] Optionally, the TPH assembly includes a TPH body and a TPH bracket, the TPH body is mounted on the TPH bracket, and two ends of the TPH bracket are respectively set to limit rotation on the base frame and the fixed frame.

[0009] Optionally, the fixed frame and the base frame are both provided with pins, and mounting holes are opened on both sides of the TPH bracket and the elastic bracket; during installation, the elastic bracket and the TPH bracket pass through the pins of the base frame in sequence; on the other side, the fixed frame is installed toward the base frame, the pins of the fixed frame pass through the elastic bracket and the TPH bracket in sequence, and the elastic bracket, the TPH bracket and the pins are rotatably connected.

[0010] By adopting the above technical solution, the pin shaft can be used as the rotation center, and the fixing frame, the base frame and the TPH bracket and the elastic bracket can be conveniently fixed through the pin shaft, and can also be conveniently disassembled.

[0011] Optionally, movable parts are connected to both ends of the TPH bracket, and movable grooves are opened corresponding to the base frame and the fixed frame. The movable part extends into the movable groove and is limitedly rotated by the movable groove.

[0012] Optionally, the rubber roller assembly includes a rubber roller body and a transmission wheel, and the rubber roller body is driven to rotate by the transmission wheel.

[0013] Optionally, it further includes a driving member and a gear assembly, wherein the gear assembly is meshed with the transmission wheel, and the driving member drives the gear assembly to rotate and drives the transmission wheel to rotate.

[0014] Optionally, the driving member is mounted on a side of the base frame facing the fixing frame.

[0015] By adopting the above technical solution, the space can be fully utilized and the movement as a whole is made more compact.

[0016] Optionally, the fixing frame is provided with an arc-shaped groove, one end of the elastic bracket is connected to a limiting portion, and the limiting portion rotates along the arc-shaped groove and drives the elastic bracket to rotate.

[0017] Optionally, a positioning piece is connected to one end of the base frame, and a positioning hole is opened on the fixing frame. During installation, the positioning piece is inserted into the positioning hole.

[0018] By adopting the above technical solution, the installation position between the base frame and the fixing frame can be easily located.

[0019] On the other hand, the present application provides a thermal printer, which adopts the following technical solution:

[0020] A thermal printer comprises the above-mentioned movement.

[0021] By adopting the above technical solution, the core structure of the thermal printer is simple and can be easily disassembled and assembled.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. During installation, you only need to install one end of the elastic bracket and the TPH assembly on the base frame, then fix the fixing frame to the base frame, and fix the other end of the elastic bracket and the TPH assembly to the fixing frame. Finally, insert the rubber roller assembly into the limit groove along the rotating groove. Due to the action of the elastic member, the limit groove gives the rubber roller assembly a force to the TPH assembly to fix the rubber roller assembly. Therefore, the movement structure is simple and easy to install. When removing the rubber roller, you only need to press the elastic member to take the rubber roller out of the limit groove. When removing other components, you only need to remove the fixing frame first, and then you can remove other components. Therefore, it is easy to disassemble and assemble;

[0024] 2. The pin can be used as the rotation center, and the fixed frame, base frame, TPH bracket and elastic bracket can be easily fixed and disassembled through the pin;

[0025] 3. The thermal printer has a simple structure and can be easily disassembled and assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the exploded structure of the movement of the embodiment of the present application;

[0027] Figure 2 It is a structural schematic diagram of the movement of the embodiment of the present application;

[0028] Figure 3 is a structural schematic diagram of the movement of the embodiment of the present application from another perspective;

[0029] Figure 4 yes Figure 2The enlarged schematic diagram of point A in the middle;

[0030] Figure 5 It is a structural schematic diagram of the cooperation between the elastic bracket, the TPH bracket and the fixing bracket in the movement of the embodiment of the present application;

[0031] Figure 6 yes Figure 2 The enlarged schematic diagram of point B in the middle;

[0032] Figure 7 It is a structural schematic diagram showing the coordination between the rubber roller assembly and the gear assembly in the movement of the embodiment of the present application.

[0033] Figure numerals: 1. base frame; 2. fixing frame; 3. TPH assembly; 31. TPH body; 32. TPH bracket; 4. rubber roller assembly; 41. rubber roller body; 42. driving wheel; 5. elastic bracket; 6. elastic member; 7. bolt hole; 8. rotating groove; 9. pin shaft; 10. mounting hole; 11. movable part; 12. limiting groove; 13. arc groove; 14. limiting part; 15. positioning member; 16. positioning hole; 17. driving member; 18. gear assembly; 19. movable groove. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-7 This application is described in further detail.

[0035] The present application embodiment discloses a movement. Figure 1 The movement includes a base frame 1, a fixing frame 2, a TPH assembly 3, a rubber roller assembly 4, an elastic bracket 5 and an elastic member 6. The fixing frame 2 is detachably connected to one side of the base frame 1. The present embodiment also includes two sets of bolts and nuts (not shown in the figure). Two bolt holes 7 are provided on the fixing frame 2 and the base frame 1. The bolts pass through the bolt holes 7 of the fixing frame 2 and the base frame 1 in turn and are screwed with the nuts, so that the fixing frame 2 and the base frame 1 can be installed and disassembled more conveniently.

[0036] Reference Figure 2 The two ends of the TPH component 3 are respectively connected to the base frame 1 and the fixed frame 2 in a limited rotation manner, and are detachably connected to the base frame 1 and the fixed frame 2; the two ends of the elastic bracket 5 are respectively connected to the base frame 1 and the fixed frame 2 in a rotation manner, and are located on the side of the TPH component 3 away from the rubber roller component 4, so that after the fixed frame 2 is removed, the TPH component 3 and the elastic bracket 5 can be directly removed from the base frame 1, which is convenient for the installation and disassembly of the TPH component 3 and the elastic bracket 5.

[0037] Reference Figure 3 In this embodiment, the elastic member 6 is a spring, and the two ends of the elastic member 6 are respectively in contact with the elastic bracket 5 and the TPH component 3 , and the TPH component 3 is supported by the elastic member 6 or compressed toward the elastic bracket 5 .

[0038] Reference Figure 4 and Figure 5 In some embodiments, the TPH assembly 3 includes a TPH body 31 and a TPH bracket 32. The TPH body 31 is mounted on the TPH bracket 32. The two ends of the TPH bracket 32 ​​are respectively set to rotate in a limited position on the base frame 1 and the fixed frame 2. In addition, the elastic member 6 of this embodiment is installed between the TPH bracket 32 ​​and the elastic bracket 5.

[0039] In some embodiments, the fixing frame 2 and the base frame 1 are fixedly connected with a pin shaft 9, and both sides of the TPH bracket 32 ​​and the elastic bracket 5 are provided with mounting holes 10. Figure 4 During installation, the elastic bracket 5 and the TPH bracket 32 ​​pass through the pin 9 of the base frame 1 in sequence; Figure 5 The fixing frame 2 on the other side is installed toward the base frame 1, and the pin shaft 9 of the fixing frame 2 passes through the elastic bracket 5 and the TPH bracket 32 ​​in sequence, and the elastic bracket 5, the TPH bracket 32 ​​are rotatably connected to the pin shaft 9, so that the installation of the elastic bracket 5 and the TPH bracket 32 ​​can be easily realized.

[0040] Reference Figure 6 In some embodiments, the two ends of the TPH bracket 32 ​​are integrally connected with a movable part 11, and the base frame 1 and the fixed frame 2 are provided with movable grooves 19 correspondingly, and the movable part 11 extends into the movable groove 19 (the movable part 11 extends into the movable groove 19 of the fixed frame 2, and the structure of the other end of the movable part 11 extending into the movable groove 19 of the base frame 1 is the same as the structure of extending into the fixed frame 2), and the movable groove 19 is used to limit the rotation. When installing, it is only necessary to insert the movable part 11 into the movable groove 19, and then cooperate with the pin 9 to realize the installation of the TPH assembly 3, and during the working process, the movable groove 19 is used to realize the limited rotation.

[0041] Reference Figure 5 and Figure 6 A rotation groove 8 is provided on both the base frame 1 and the fixed frame 2 (the rotation groove 8 of the fixed frame 2 is shown in the figure, and the rotation groove 8 of the base frame 1 and the rubber roller assembly 4 are installed in the same manner as on the fixed frame 2 side), and both ends of the rubber roller assembly 4 are placed in the rotation groove 8, and the position of the rubber roller assembly 4 is limited by the rotation groove 8. A limiting groove 12 is provided on the elastic bracket 5, and the rubber roller assembly 4 is located in the limiting groove 12. The limiting groove 12 gives the rubber roller assembly 4 a force toward the TPH assembly 3 side, so that the rubber roller assembly 4 can be fixed, and at the same time, the elastic force of the elastic member 6 enables the rubber roller assembly 4 to move in the rotation groove 8.

[0042] Reference Figure 6, one end of the elastic bracket 5 is connected to the fixed bracket 2 for limited rotation. In some embodiments, the fixed bracket 2 is provided with an arc groove 13, one end of the elastic bracket 5 is integrally connected with a limiting portion 14, the limiting portion 14 rotates along the arc groove 13 to drive the elastic bracket 5 to rotate, and the installation position of the elastic bracket 5 is limited by the limiting portion 14.

[0043] In some embodiments, a positioning member 15 is connected to one end of the base frame 1, and a positioning hole 16 is provided on the fixing frame 2. In this embodiment, two positioning members 15 are provided, and two positioning holes 16 are provided correspondingly, and are provided between the two bolt holes 7. During installation, the positioning member 15 is inserted into the positioning hole 16, so that the installation between the fixing frame 2 and the base frame 1 can be conveniently positioned, and the connection between the fixing frame 2 and the base frame 1 can be stabilized.

[0044] Reference Figure 7 In some embodiments, the rubber roller assembly 4 includes a rubber roller body 41 and a transmission wheel 42 , and the transmission wheel 42 drives the rubber roller body 41 to rotate.

[0045] In some embodiments, the movement further includes a driving member 17 and a gear assembly 18. In this embodiment, the driving member 17 is a motor, and the gear assembly 18 is meshed with the transmission wheel 42. The driving member 17 drives the gear assembly 18 to rotate, thereby driving the transmission wheel 42 to rotate, so that the movement works. In some embodiments, the driving member 17 is installed on the side of the base frame 1 facing the fixed frame 2, so that the movement structure is more compact.

[0046] The implementation principle of a movement of an embodiment of the present application is: during installation, it is only necessary to install one end of the elastic bracket 5 and the TPH component 3 on the base frame 1, and then fix the fixing frame 2 to the base frame 1, and at the same time fix the other end of the elastic bracket 5 and the TPH component 3 to the fixing frame 2, and finally insert the rubber roller component 4 into the limiting groove 12 along the rotating groove 8. Due to the action of the elastic member 6, the limiting groove 12 gives the rubber roller component 4 a force toward the TPH component 3 to fix the rubber roller component 4, so the movement structure is simple and easy to install; when removing the rubber roller, it is only necessary to press the elastic member 6 to take the rubber roller out of the limiting groove 12. When removing other components, it is only necessary to remove the fixing frame 2 first, and then other components can be removed, so it is convenient to disassemble and assemble.

[0047] The embodiment of the present application also discloses a thermal printer, which includes the above-mentioned movement.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A movement, characterized in that: It includes a base frame, a fixing frame, a TPH assembly, a rubber roller assembly, an elastic bracket and an elastic member, wherein the fixing frame is detachably connected to one side of the base frame, and two ends of the TPH assembly are respectively connected to the base frame and the fixing frame in a limited rotation manner, and are detachably connected to the base frame and the fixing frame; a rotation groove is provided on the base frame and the fixing frame, and two ends of the rubber roller assembly are placed in the rotation groove; two ends of the elastic bracket are respectively connected to the base frame and the fixing frame in a limited rotation manner, and are located on a side of the TPH assembly away from the rubber roller assembly, and two ends of the elastic member are respectively abutted against the elastic bracket and the TPH assembly; a limiting groove is provided on the elastic bracket, and the rubber roller assembly is located in the limiting groove, and the limiting groove gives the rubber roller assembly a force toward one side of the TPH assembly, and one end of the elastic bracket is connected to the fixing frame in a limited rotation manner.

2. A movement according to claim 1, characterized in that: The TPH assembly includes a TPH body and a TPH bracket. The TPH body is installed on the TPH bracket. Two ends of the TPH bracket are respectively arranged to rotate in a limited position on the base frame and the fixed frame.

3. A movement according to claim 2, characterized in that: The fixing frame and the base frame are both provided with pins, and mounting holes are provided on both sides of the TPH bracket and the elastic bracket; during installation, the elastic bracket and the TPH bracket pass through the pins of the base frame in sequence; on the other side, the fixing frame is installed toward the base frame, and the pins of the fixing frame pass through the elastic bracket and the TPH bracket in sequence, and the elastic bracket, the TPH bracket and the pins are rotatably connected.

4. A movement according to claim 3, characterized in that: Both ends of the TPH bracket are connected with movable parts, and movable grooves are opened corresponding to the base frame and the fixed frame. The movable part extends into the movable groove and rotates through the movable groove.

5. A movement according to claim 1, characterized in that: The rubber roller assembly comprises a rubber roller body and a transmission wheel, and the rubber roller body is driven to rotate by the transmission wheel.

6. A movement according to claim 5, characterized in that: It also includes a driving member and a gear assembly, wherein the gear assembly is meshed with the transmission wheel, and the driving member drives the gear assembly to rotate and drives the transmission wheel to rotate.

7. A movement according to claim 6, characterized in that: The driving member is installed on a side of the base frame facing the fixing frame.

8. A movement according to claim 1, characterized in that: The fixing frame is provided with an arc-shaped groove, one end of the elastic bracket is connected to a limiting portion, and the limiting portion rotates along the arc-shaped groove and drives the elastic bracket to rotate.

9. A movement according to claim 1, characterized in that: One end of the base frame is connected with a positioning piece, and a positioning hole is opened on the fixing frame. During installation, the positioning piece is inserted into the positioning hole.

10. A thermal printer, characterized in that: Comprising a movement as described in any one of claims 1-9.

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