Thermal transfer printer

Abstract

The utility model belongs to the technical field of thermal transfer printing, and discloses a thermal transfer printer. The thermal transfer printer comprises a mounting plate, a first reel, a second reel, a first driving assembly, a second driving assembly and a printing module, the first reel and the second reel are rotatably arranged on the mounting plate, a ribbon is wound on the first reel, the free end of the ribbon is fixed to the second reel, the first driving assembly is arranged on the mounting plate, and the second driving assembly is arranged on the mounting plate. The first driving assembly is connected with the printing module and can drive the printing module to move in the X-axis direction, the printing module comprises a first mounting block and a printing assembly, the printing assembly is slidably arranged on the first mounting block in the Z-axis direction, and the second driving assembly can drive the printing assembly to move in the Z-axis direction. The first reel and the second reel are directly arranged on the mounting plate, use of parts is simplified, the first reel or the second reel does not need to be in butt joint with the mounting plate, the matching precision of all the parts is reduced, and the manufacturing cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal transfer printing, in particular to a thermal transfer printer. Background Art

[0002] A thermal transfer printer is a kind of printer that can print patterns, barcodes or time information on the surface of packaging labels made of soft and thin materials or smooth cards. The thermal transfer printer uses a print head to press a ribbon onto the surface of a substrate, and then generates heat through a heating element on the print head to melt the ink on the ribbon and press it onto the substrate to complete the printing.

[0003] The existing thermal transfer printer includes a housing and a cover plate, and a reel for winding the ribbon is arranged on the cover plate. When in use, it is necessary to fasten the cover plate and make the reel be clamped with the output end of the motor in the housing. The structure is complex, the disassembly and assembly are inconvenient, the matching precision between various components is required to be high, and the manufacturing cost is relatively high.

[0004] Therefore, it is necessary to provide a thermal transfer printer to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a thermal transfer printer, in which a first reel and a second reel are directly arranged on a mounting plate, the use of parts is streamlined, the matching precision between various components is reduced, and the manufacturing cost is saved.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A thermal transfer printer, comprising:

[0008] A mounting plate;

[0009] A first reel and a second reel, both rotatably arranged on the mounting plate, a ribbon is wound on the first reel, and the free end of the ribbon is fixed to the second reel;

[0010] A first driving assembly, arranged on the mounting plate, the first driving assembly is configured to drive a printing module to move along the X-axis direction, the printing module includes a first mounting block and a printing component, and the printing component is slidably arranged on the first mounting block along the Z-axis direction;

[0011] A second driving assembly, the second driving assembly is configured to drive the printing component to move along the Z-axis direction.

[0012] Preferably, the thermal transfer printer further includes:

[0013] The third driving member and the fourth driving member are respectively connected to the first reel and the second reel. The third driving member is configured to drive the first reel to rotate, and the fourth driving member is configured to drive the second reel to rotate.

[0014] Preferably, the first driving assembly includes:

[0015] Two belt pulleys spaced along the X-axis direction on the mounting plate;

[0016] A synchronous belt sleeved on the two belt pulleys and tensioned by the two belt pulleys, and the first mounting block is arranged on the synchronous belt;

[0017] A first driving member connected to one of the belt pulleys, and the first driving member is configured to drive the belt pulley to rotate.

[0018] Preferably, at least one of the belt pulleys is provided with a guiding groove, and the synchronous belt is located in the guiding groove.

[0019] Preferably, the second driving assembly includes:

[0020] A contact plate slidably arranged on the mounting plate along the Z-axis direction, and the lower side surface of the contact plate can be in contact with the printing assembly;

[0021] A first elastic member, one end of the first elastic member is arranged on the first mounting block, and the other end is arranged on the printing assembly. The first elastic member can drive the printing assembly to move upward along the Z-axis direction;

[0022] A second driving member, the output shaft of the second driving member is connected to a driving wheel, the driving wheel is eccentrically arranged with the output shaft, the driving wheel is in contact with the upper side surface of the contact plate, and the second driving member is configured to drive the driving wheel to rotate so that the contact plate moves downward along the Z-axis direction.

[0023] Preferably, the second driving assembly further includes:

[0024] A plurality of second elastic members, one end of the second elastic member is arranged on the mounting plate, and the other end is arranged on the contact plate. The second elastic member can drive the contact plate to move upward along the Z-axis direction.

[0025] Preferably, a roller is rotatably arranged on the printing assembly, and the roller is in contact with the lower side surface of the contact plate.

[0026] Preferably, the thermal transfer printer further includes:

[0027] The first guiding component, the first guiding component includes a first guide rail extending in the Z-axis direction and a first guide block, one of the abutting plate and the mounting plate is provided with the first guide rail, and the other is provided with the first guide block, and the first guide rail is slidably engaged with the first guide block.

[0028] Preferably, the thermal transfer printer further includes:

[0029] The second guiding component, the second guiding component includes a second guide rail extending in the X-axis direction and a second guide block, one of the first mounting block and the mounting plate is provided with the second guide rail, and the other is provided with the second guide block, and the second guide rail is slidably engaged with the second guide block.

[0030] Preferably, the printing module further includes:

[0031] The third guiding component, the third guiding component includes a third guide rail extending in the Z-axis direction and a third guide block, one of the first mounting block and the printing component is provided with the third guide rail, and the other is provided with the third guide block, and the third guide rail is slidably engaged with the third guide block.

[0032] The beneficial effects of the present utility model:

[0033] This thermal transfer printer includes a mounting plate, a first reel, a second reel, a first driving component, a second driving component and a printing module. The first reel and the second reel are rotatably arranged on the mounting plate. The ribbon is wound around the first reel, and the free end of the ribbon is fixed to the second reel. The first driving component is arranged on the mounting plate and is connected to the printing module, and can drive the printing module to move in the X-axis direction. The printing module includes a first mounting block and a printing component, and the printing component is slidably arranged in the first mounting block in the Z-axis direction. The second driving component can drive the printing component to move in the Z-axis direction.

[0034] Compared with the prior art, this thermal transfer printer changes the setting positions of the first reel and the second reel, directly arranges the first reel and the second reel on the mounting plate, simplifies the use of parts, and there is no need to dock the first reel to the mounting plate, reducing the matching accuracy between components and saving manufacturing costs. Description of the Drawings

[0035] Figure 1 is a schematic structural diagram of the thermal transfer printer provided by the present utility model;

[0036] Figure 2 is a schematic structural diagram of the printing module provided by the present utility model.

[0037] In the figure:

[0038] 1. Mounting plate;

[0039] 21. First reel; 22. Second reel;

[0040] 3. First driving assembly; 31. Belt pulley; 32. Timing belt;

[0041] 4. Printing module; 41. First mounting block; 42. Printing component; 421. Second mounting block; 422. Print head; 43. Roller; 44. Third guiding assembly; 441. Third guide rail; 442. Third guide block;

[0042] 51. Abutting plate; 52. First elastic member; 53. Second driving member; 54. Driving wheel; 55. Second elastic member;

[0043] 61. Third driving member; 62. Fourth driving member;

[0044] 7. First guiding assembly; 71. First guide rail; 72. First guide block;

[0045] 8. Second guiding assembly; 81. Second guide rail; 82. Second guide block. Detailed implementation mode

[0046] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0047] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. 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 situations.

[0048] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0049] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0050] A thermal transfer printer is a type of printer that can print patterns, barcodes or time information on the surface of packaging labels made of soft and thin materials or smooth cards. The thermal transfer printer uses a print head to press a ribbon onto the surface of a substrate, and then generates heat through a heating element on the print head to melt the ink on the ribbon and press it onto the substrate to complete the printing. Existing thermal transfer printers include a housing and a cover plate, and a reel for winding the ribbon is arranged on the cover plate. When in use, it is necessary to fasten the cover plate and make the reel be clamped with the output end of a motor in the housing. The structure is complex, the disassembly and assembly are inconvenient, the requirement for the matching accuracy between various components is high, and the manufacturing cost is relatively high.

[0051] To solve the above problems, as Figure 1 - Figure 2 shown, this embodiment provides a thermal transfer printer, which includes a mounting plate 1, a first reel 21, a second reel 22, a first driving assembly 3, a second driving assembly and a printing module 4. The first reel 21 and the second reel 22 are rotatably arranged on the mounting plate 1. The ribbon is wound on the first reel 21, and the free end of the ribbon is fixed to the second reel 22. The first driving assembly 3 is arranged on the mounting plate 1, and the first driving assembly 3 is connected to the printing module 4 and can drive the printing module 4 to move along the X-axis direction. The printing module 4 includes a first mounting block 41 and a printing component 42. The printing component 42 is slidably arranged along the Z-axis direction on the first mounting block 41. The second driving assembly can drive the printing component 42 to move along the Z-axis direction.

[0052] This thermal transfer printer is applicable to two printing modes: intermittent printing and continuous printing. When using the intermittent printing mode, the first reel 21 and the second reel 22 move synchronously to drive the ribbon wound thereon to move. The first driving component 3 drives the printing module 4 to move along the X-axis direction to the initial printing position. Then, the second driving component drives the printing component 42 to move downward along the Z-axis direction. At this time, both the ribbon and the substrate remain stationary. The printing component 42 moves downward to press the ribbon onto the substrate. The printing component 42 has a heating element, and the heating element heats up to melt the ink on the ribbon and transfer it to the substrate, thus completing the printing of one line. Then, the first driving component 3 drives the printing module 4 to move to the printing position of the next line to continue printing. The above actions are repeated until the printing is completed. The second driving component drives the printing component 42 to move upward along the Z-axis direction. The ribbon and the substrate move to the next printing position. The first driving component 3 drives the printing module 4 to move along the X-axis direction to the initial printing position, that is, to perform the next printing action.

[0053] When using the continuous printing mode, the substrate moves at a constant speed driven by the packaging machine. The first reel 21 and the second reel 22 move synchronously to drive the ribbon wound thereon to move, and the moving speed of the ribbon is the same as that of the substrate, that is, the two are relatively stationary. The first driving component 3 drives the printing module 4 to move along the X-axis direction to the initial printing position. Then, the second driving component drives the printing component 42 to move downward along the Z-axis direction to press the ribbon onto the substrate. The printing component 42 has a heating element, and the heating element heats up to melt the ink on the ribbon and transfer it to the substrate, thus completing the printing of one line. At this time, the printing component 42 remains stationary, and the ribbon and the substrate continue to move so that the printing position of the next line moves under the printing component 42 to continue printing until the printing is completed. The second driving component drives the printing component 42 to move upward along the Z-axis direction. The first reel 21 and the second reel 22 rotate in reverse synchronously to pull back the ribbon, and the unprinted ribbon is pulled back to achieve the purpose of saving the ribbon. Then, the next printing action is performed.

[0054] Compared with the prior art, this thermal transfer printer changes the installation positions of the first reel 21 and the second reel 22, directly sets the first reel 21 and the second reel 22 on the mounting plate 1, simplifies the use of parts, eliminates the need to dock the first reel 21 to the mounting plate 1, reduces the matching accuracy between components, and saves manufacturing costs.

[0055] Specifically, as Figure 1As shown, the thermal transfer printer further includes a third driving member 61 and a fourth driving member 62, which are connected to the first reel 21 and the second reel 22, respectively. The third driving member 61 is configured to drive the first reel 21 to rotate, and the fourth driving member 62 is configured to drive the second reel 22 to rotate. In a specific implementation, the third driving member 61 and the fourth driving member 62 are fixed to a side of the mounting plate 1 away from the first reel 21 and the second reel 22, and the output ends of the third driving member 61 and the fourth driving member 62 pass through the mounting plate 1 to be connected to the first reel 21 and the second reel 22, respectively.

[0056] In this embodiment, the third driving member 61 is a motor; in other embodiments, the third driving member 61 is a cylinder. It should be noted that any structure in the prior art that can drive the first reel 21 to rotate can be used as the third driving member 61 in this embodiment, and this embodiment does not limit this.

[0057] In this embodiment, the fourth driving member 62 is a motor; in other embodiments, the fourth driving member 62 is a cylinder. It should be noted that any structure in the prior art that can drive the second reel 22 to rotate can be used as the fourth driving member 62 in this embodiment, and this embodiment does not limit this.

[0058] Specifically, Figure 1 As shown, the first driving assembly 3 includes two pulleys 31, a synchronous belt 32 and a first driving member (not shown in the figure). The two pulleys 31 are arranged on the mounting plate 1 at intervals along the X-axis direction, the synchronous belt 32 is sleeved on the two pulleys 31 and is tensioned by the two pulleys 31, the first mounting block 41 is fixed on the synchronous belt 32, the first driving member is connected to one pulley 31 and can drive the pulley 31 to rotate, the rotation of the pulley 31 can drive the synchronous belt 32 to move, and then the first mounting block 41 fixed on the synchronous belt 32 produces displacement in the X-axis direction, that is, the printing module 4 produces displacement in the X-axis direction. The synchronous belt 32 realizes power transmission through inter-tooth engagement, avoids the possible slippage of the traditional belt, realizes stable power transmission, and the synchronous belt 32 can realize precise positioning of the printing module 4 through precise inter-tooth engagement, so that the printing module 4 can accurately move to the position to be printed.

[0059] In this embodiment, the first driving member is a motor; in other embodiments, the first driving member is a cylinder. It should be noted that any structure in the prior art that can drive the pulley 31 to rotate can be used as the first driving member in this embodiment, and this embodiment does not limit this.

[0060] Furthermore, at least one pulley 31 is provided with a guide groove, and the synchronous belt 32 is located in the guide groove. The provision of the guide groove ensures that the synchronous belt 32 will not deviate during the transmission process, thereby improving the stability and reliability of the transmission.

[0061] In the prior art, a pneumatic controller is usually used as the second driving component to drive the printing component 42 to move in the Z-axis direction. This driving method has high costs, many parts, complex installation, and the operating time of the thermal transfer printer is limited by the gas source reserve and cannot operate continuously for a long time.

[0062] To solve the above problems, as Figure 1 - Figure 2 shown, in this embodiment, the second driving component includes a contact plate 51, a first elastic member 52, a second driving member 53, and a driving wheel 54. The contact plate 51 is slidably disposed on the mounting plate 1 in the Z-axis direction. The lower side surface of the contact plate 51 can be in contact with the printing component 42. One end of the first elastic member 52 is disposed on the first mounting block 41, and the other end is disposed on the printing component 42. The first elastic member 52 can drive the printing component 42 to move upward in the Z-axis direction. The output shaft of the second driving member 53 is connected to the driving wheel 54. The driving wheel 54 is eccentrically disposed with respect to the output shaft. The driving wheel 54 is in contact with the upper side surface of the contact plate 51. The second driving member 53 is configured to drive the driving wheel 54 to rotate so that the contact plate 51 moves downward in the Z-axis direction.

[0063] As the output shaft rotates, the driving wheel 54 will rotate around the center of the output shaft. Since the driving wheel 54 is eccentrically disposed with respect to the output shaft of the second driving member 53, that is, the center of the driving wheel 54 does not coincide with the center of the output shaft, this enables the driving wheel 54 to generate a linear motion in the Z-axis direction when rotating. When the driving wheel 54 generates a linear displacement downward in the Z-axis direction, since the driving wheel 54 is in contact with the upper side surface of the contact plate 51, the contact plate 51 can be subjected to a downward thrust and slide downward in the Z-axis direction, thereby driving the printing component 42 to move downward in the Z-axis direction to be able to press the ribbon against the substrate; when the driving wheel 54 generates a linear displacement upward in the Z-axis direction, the driving wheel 54 no longer gives a downward thrust to the contact plate 51, and the printing component 42 moves upward in the Z-axis direction under the drive of the first elastic member 52. Since the printing component 42 is in contact with the lower side surface of the contact plate 51, the contact plate 51 can be subjected to an upward thrust and slide upward in the Z-axis direction until the upper side surface of the contact plate 51 is in contact with the driving wheel 54 again, completing the reset of the printing component 42. This design is simple and compact, reduces unnecessary transmission components, reduces the complexity of the overall structure, is easy to install, has low costs, and does not require a gas source and can operate continuously for a long time.

[0064] Furthermore, continue to refer to Figure 1, the second driving assembly further includes a plurality of second elastic members 55. One end of each second elastic member 55 is disposed on the mounting plate 1, and the other end is disposed on the abutting plate 51. The second elastic members 55 can drive the abutting plate 51 to move upward along the Z-axis direction. By providing the second elastic members 55 to provide an upward driving force for the abutting plate 51 along the Z-axis direction, the reset effect is further enhanced, ensuring that the abutting plate 51 can quickly and stably return to the position where it abuts against the driving wheel 54.

[0065] Exemplarily, as Figure 1 shown, the number of the second elastic members 55 is two, which are respectively disposed at two ends of the abutting plate 51 along the X-axis direction, and can ensure that the abutting plate 51 is subjected to uniform force when moving in the Z-axis direction, avoiding inclination or deviation caused by uneven single-point force.

[0066] In this embodiment, both the first elastic member 52 and the second elastic member 55 are tension springs. Tension springs can maintain stable performance for a long time, are not easily affected by external factors and cause performance fluctuations, have a long service life, low replacement frequency, and low maintenance cost.

[0067] Specifically, as Figure 2 shown, a roller 43 is rotatably disposed on the printing assembly 42, and the roller 43 abuts against the lower side surface of the abutting plate 51. The printing assembly 42 abuts against the lower side surface of the abutting plate 51 through the roller 43. When the printing module 4 generates a displacement along the X-axis direction under the drive of the first driving assembly 3, the friction generated between the printing assembly 42 and the abutting plate 51 is rolling friction, which can significantly reduce the wear generated during the movement of the printing assembly 42 and extend the service lives of the printing assembly 42 and the abutting plate 51. In this embodiment, the printing assembly 42 includes a second mounting seat and a print head 422. The print head 422 is fixed on the second mounting seat, and the roller 43 is rotatably disposed on the second mounting seat.

[0068] Specifically, this thermal transfer printer further includes a first guiding assembly 7. The first guiding assembly 7 includes a first guide rail 71 and a first guide block 72 extending along the Z-axis direction. One of the abutting plate 51 and the mounting plate 1 is provided with the first guide rail 71, and the other is provided with the first guide block 72. The first guide rail 71 and the first guide block 72 are slidably engaged. The first guiding assembly 7 provides precise guidance for the movement of the abutting plate 51 in the Z-axis direction, helping to reduce the problem of printing accuracy caused by movement deviation.

[0069] In this embodiment, the number of the first guiding assemblies 7 is two, which are respectively disposed at two ends of the abutting plate 51 along the X-axis direction. The precise cooperation of the two first guiding assemblies 7 can ensure that the movement trajectory of the abutting plate 51 in the Z-axis direction is accurate. Moreover, the first guiding assemblies 7 disposed at both ends are equivalent to providing two support points for the abutting plate 51, enhancing the rigidity of the abutting plate 51 during the movement process and reducing the position deviation caused by external force interference.

[0070] In an alternative embodiment, the first guide rail 71 is provided on the mounting plate 1, and the first guide block 72 is provided on the abutting plate 51; in another alternative embodiment, the first guide rail 71 is provided on the abutting plate 51, and the first guide block 72 is provided on the mounting plate 1. The specific implementation manner is determined according to actual requirements and is not limited herein.

[0071] Specifically, this thermal transfer printer further includes a second guiding assembly 8. The second guiding assembly 8 includes a second guide rail 81 and a second guide block 82 extending along the X-axis direction. One of the first mounting block 41 and the mounting plate 1 is provided with the second guide rail 81, and the other is provided with the second guide block 82. The second guide rail 81 and the second guide block 82 are in sliding fit. The second guiding assembly 8 provides precise guidance for the movement of the printing module 4 in the X-axis direction, which helps to reduce the problem of printing accuracy caused by movement errors.

[0072] In an alternative embodiment, the second guide rail 81 is provided on the mounting plate 1, and the second guide block 82 is provided on the first mounting block 41; in another alternative embodiment, the second guide rail 81 is provided on the first mounting block 41, and the second guide block 82 is provided on the mounting plate 1. The specific implementation manner is determined according to actual requirements and is not limited herein.

[0073] Specifically, as Figure 2 shown, this printing module 4 further includes a third guiding assembly 44. The third guiding assembly 44 includes a third guide rail 441 and a third guide block 442 extending along the Z-axis direction. One of the first mounting block 41 and the printing assembly 42 is provided with the third guide rail 441, and the other is provided with the third guide block 442. The third guide rail 441 and the third guide block 442 are in sliding fit. The third guiding assembly 44 provides precise guidance for the movement of the printing assembly 42 in the Z-axis direction, which helps to reduce the problem of printing accuracy caused by movement errors.

[0074] In an alternative embodiment, the third guide rail 441 is provided on the first mounting block 41, and the third guide block 442 is provided on the printing assembly 42; in another alternative embodiment, the third guide rail 441 is provided on the printing assembly 42, and the third guide block 442 is provided on the first mounting block 41. The specific implementation manner is determined according to actual requirements and is not limited herein.

[0075] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. Thermal transfer printer, characterized in that, include: Mounting plate (1); A first reel (21) and a second reel (22) are both rotatably disposed on the mounting plate (1), a ribbon is wound on the first reel (21), and a free end of the ribbon is fixed to the second reel (22); A first driving assembly (3) is arranged on the mounting plate (1), the first driving assembly (3) being configured to drive the printing module (4) to move along the X-axis direction, the printing module (4) comprising a first mounting block (41) and a printing assembly (42), the printing assembly (42) being slidably arranged on the first mounting block (41) along the Z-axis direction; A second driving component is configured to drive the printing component (42) to move along a Z-axis direction.

2. The thermal transfer printer according to claim 1, characterized in that: The thermal transfer printer also includes: The third driving member (61) and the fourth driving member (62) are respectively connected to the first reel (21) and the second reel (22); the third driving member (61) is configured to drive the first reel (21) to rotate, and the fourth driving member (62) is configured to drive the second reel (22) to rotate.

3. The thermal transfer printer according to claim 1, characterized in that: The first driving assembly (3) comprises: Two pulleys (31) are arranged on the mounting plate (1) at intervals along the X-axis direction; A synchronous belt (32) is sleeved on the two pulleys (31) and tensioned by the two pulleys (31), and the first mounting block (41) is arranged on the synchronous belt (32); A first driving member is connected to one of the pulleys (31), and the first driving member is configured to drive the pulley (31) to rotate.

4. The thermal transfer printer according to claim 3, characterized in that: At least one of the pulleys (31) is provided with a guide groove, and the synchronous belt (32) is located in the guide groove.

5. The thermal transfer printer according to claim 1, characterized in that: The second driving assembly comprises: An abutment plate (51) is slidably arranged on the mounting plate (1) along the Z-axis direction, and the lower side of the abutment plate (51) is capable of abutting against the printing component (42); a first elastic member (52), one end of the first elastic member (52) being arranged on the first mounting block (41), and the other end of the first elastic member (52) being arranged on the printing assembly (42), and the first elastic member (52) being capable of driving the printing assembly (42) to move upward along the Z-axis direction; A second driving member (53), wherein an output shaft of the second driving member (53) is connected to a driving wheel (54), the driving wheel (54) is eccentrically arranged with respect to the output shaft, the driving wheel (54) abuts against an upper side surface of the abutment plate (51), and the second driving member (53) is configured to drive the driving wheel (54) to rotate so as to cause the abutment plate (51) to move downward along the Z-axis direction.

6. The thermal transfer printer according to claim 5, characterized in that: The second drive assembly further comprises: A plurality of second elastic members (55), one end of each of the second elastic members (55) being arranged on the mounting plate (1) and the other end being arranged on the abutment plate (51), and the second elastic members (55) being capable of driving the abutment plate (51) to move upwards along the Z-axis direction.

7. The thermal transfer printer according to claim 5, characterized in that: A roller (43) is rotatably provided on the printing assembly (42), and the roller (43) abuts against the lower side surface of the abutment plate (51).

8. The thermal transfer printer according to claim 5, characterized in that: The thermal transfer printer also includes: A first guide assembly (7), wherein the first guide assembly (7) comprises a first guide rail (71) and a first guide block (72) extending in the Z-axis direction, wherein one of the abutment plate (51) and the mounting plate (1) is provided with the first guide rail (71), and the other is provided with the first guide block (72), and the first guide rail (71) and the first guide block (72) are slidably matched.

9. The thermal transfer printer according to any one of claims 1 to 8, characterized in that: The thermal transfer printer also includes: A second guide assembly (8), the second guide assembly (8) comprising a second guide rail (81) and a second guide block (82) extending in the X-axis direction, one of the first mounting block (41) and the mounting plate (1) being provided with the second guide rail (81), and the other being provided with the second guide block (82), the second guide rail (81) being slidably matched with the second guide block (82).

10. The thermal transfer printer according to any one of claims 1 to 8, characterized in that: The printing module (4) further comprises: A third guide assembly (44), the third guide assembly (44) comprising a third guide rail (441) and a third guide block (442) extending in the Z-axis direction, one of the first mounting block (41) and the printing assembly (42) being provided with the third guide rail (441), and the other being provided with the third guide block (442), the third guide rail (441) being slidably matched with the third guide block (442).

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