Anti-wrinkle paper feeding assembly and thermal transfer printer

Abstract

The utility model discloses an anti-wrinkle paper feeding assembly and a thermal transfer printer, the anti-wrinkle paper feeding assembly comprises an upper seat body, a telescoping cylinder and a printing head mechanism, the upper seat body and the printing head mechanism are horizontally arranged along the left-right direction, the upper seat body is provided with a winding chuck, an unwinding chuck and an upper spiral roller, the telescoping cylinder is installed at the lower end of the upper seat body, and the printing head mechanism is installed at the lower end of the upper seat body. The middle of the upper end of the printing head mechanism is connected with the telescopic end of the telescopic cylinder, the lower end of the printing head mechanism is provided with a printing head, the front side and the rear side of the printing head mechanism are each provided with an inertia roller and a lower spiral roller, the unwinding chuck is used for detachably installing a thermal transfer ribbon paper roll, and the winding chuck is used for detachably installing a waste paper reel. The unwinding end of a thermal transfer ribbon paper roll bypasses the lower portion of the printing head mechanism in a U shape and is jointly expanded through the upper spiral roller, the inertia roller and the lower spiral roller, the telescopic cylinder stretches out and drapes back to drive the printing head mechanism to ascend and descend relative to the upper base body, and thermal transfer ribbon paper is stirred to be unfolded in a wrinkle-free mode through the upper spiral roller and the lower spiral roller so that thermal transfer printing operation can be conducted through the printing head.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal transfer, and particularly relates to an anti-wrinkle paper feeding assembly and a thermal transfer printer. Background Art

[0002] Nano full resin-based carbon ribbons are usually applied to the traffic sign printing industry. They have high adhesion, scratch resistance, acid and alkali resistance, strong weather resistance, and can adapt to a variety of carriers. Using full resin-based carbon ribbons as special consumables for thermal transfer, the produced signs can effectively resist the harsh outdoor environment and meet more application requirements. The thickness of the carbon ribbon substrate is between 4.5 - 6μm, and it needs to contact the printing substrate at a relatively high temperature and pressure, which easily causes wrinkles and results in product scrapping, causing huge waste to the manufacturer. Summary of the Utility Model

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide an anti-wrinkle paper feeding assembly with a simple structure that can prevent wrinkles from occurring on the carbon ribbon paper during thermal transfer.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows: An anti-wrinkle paper feeding assembly includes an upper seat body, a telescopic cylinder, and a print head mechanism. The upper seat body is horizontally arranged in the left-right direction. A winding chuck, an unwinding chuck, and an upper spiral roller are arranged on the upper seat body. The telescopic cylinder is installed at the lower end of the upper seat body, and its telescopic end faces downward. The print head mechanism is horizontally arranged in the left-right direction, and the middle part of its upper end is connected to the telescopic end of the telescopic cylinder. The lower end of the print head mechanism has a print head. Inertia rollers and lower spiral rollers are arranged on both the front and rear sides of the print head mechanism. The unwinding chuck is used for detachably installing a carbon ribbon paper roll horizontally arranged in the left-right direction, and the winding chuck is used for detachably installing a waste paper roll horizontally arranged in the left-right direction. The unwinding end of the carbon ribbon paper roll bypasses the lower part of the print head mechanism in a U shape and is supported by the upper spiral roller, the inertia rollers, and the lower spiral roller together. The print head is used for thermally transferring the carbon ribbon paper passing below it. The telescopic cylinder expands and contracts to drive the print head mechanism to lift relative to the upper seat body. Both the upper spiral roller and the lower spiral roller are double-threaded rollers, and the thread directions at both ends are opposite.

[0005] The beneficial effects of the above technical solution are as follows: In this way, during thermal transfer, the carbon ribbon paper roll is clamped by the unwinding chuck, and the waste paper roll is clamped by the winding chuck. When the carbon ribbon paper roll is unwound, the carbon ribbon paper passes below the print head, and the waste paper roll winds up the thermally transferred carbon ribbon paper. The carbon ribbon paper between the carbon ribbon paper roll and the waste paper roll is supported by the upper spiral roller, the inertia rollers, and the lower spiral roller. When the upper spiral roller and the lower spiral roller rotate, they will move the carbon ribbon paper to both sides to eliminate the wrinkles on the carbon ribbon paper, so as to ensure that the carbon ribbon paper is in a wrinkle-free unfolded state when passing below the print head.

[0006] In the above technical solution, the upper seat body further includes a bottom beam and two upper support plates. The bottom beam is horizontally arranged in the left - right direction. The two upper support plates are both horizontally arranged in the front - back direction and are respectively installed at the left and right ends of the upper end of the bottom beam. The unwinding chuck and the winding chuck are both arranged on the two upper support plates. The upper spiral roller is placed between the two upper support plates, and its two ends are respectively rotationally connected to the two upper support plates. The bottom beam forms the lower end of the upper seat body, and the telescopic cylinder is installed in the middle of the bottom beam.

[0007] The beneficial effect of the above technical solution is that by setting two upper support plates, the unwinding chuck, the winding chuck and the upper spiral roller can be installed with the two upper support plates as carriers. The carbon tape roll and the waste paper roll can both be installed between the two upper support plates, and the bottom beam can be used for installing the telescopic cylinder.

[0008] In the above technical solution, the unwinding chuck includes two first clamping parts respectively installed on the two upper support plates and aligned with each other. The carbon tape roll is placed between the two first clamping parts and is clamped by the two first clamping parts; the winding chuck includes two second clamping parts respectively installed on the two upper support plates and aligned with each other. The waste paper roll is placed between the two second clamping parts and is clamped by the two second clamping parts.

[0009] The beneficial effect of the above technical solution is that its structure is simple. In this way, the two ends of the carbon tape roll can be clamped by the two first clamping parts, and the two ends of the waste paper roll can be clamped by the two second clamping parts. At this time, both the carbon tape roll and the waste paper roll are convenient to disassemble and assemble on the upper seat body.

[0010] In the above technical solution, the print head mechanism further includes two lower support plates. The two lower support plates are both vertically arranged in the front - back direction at the left and right ends of the print head. The two ends of each idler roller are respectively connected to the two lower support plates. The two ends of each lower spiral roller are respectively rotationally connected to the two lower support plates.

[0011] The beneficial effect of the above technical solution is that by setting two lower support plates, the idler roller and the lower spiral roller can both be installed on the two lower support plates.

[0012] In the above technical solution, the print head mechanism further includes a cooling plate. The cooling plate is installed at the upper end of the print head. The cooling plate is used to cool down the print head. The telescopic end of the telescopic cylinder is connected to the middle of the upper end of the cooling plate.

[0013] The beneficial effect of the above technical solution is that in this way, the print head can be dissipated heat by the cooling plate to avoid the temperature of the print head being too high and affecting the thermal transfer effect.

[0014] The above technical solution further includes a cooling fan. Cooling holes penetrating up and down are provided on the cooling plate. A cooling channel communicating with the cooling holes is provided at the lower end of the cooling plate. The cooling fan is arranged at the upper end of the cooling plate and is located at the cooling holes.

[0015] The beneficial effect of the above technical solution is that its structure is simple, and the cooling plate can achieve better heat dissipation by accelerating heat dissipation with the help of the cooling fan.

[0016] In the above technical solution, two cooling holes are provided on the cooling plate, and two cooling fans are provided. The two cooling holes correspond to the two cooling fans one by one. Each cooling fan is respectively installed at the corresponding cooling hole, and the connection part of the telescopic cylinder and the cooling plate is located between the two cooling fans.

[0017] The beneficial effect of the above technical solution is that in this way, the entire cooling plate can be cooled by two cooling fans in cooperation, so that its heat dissipation effect can be further improved, and the overall temperature distribution is relatively balanced.

[0018] In the above technical solution, a guide rod is further provided at the upper end of the print head mechanism. The upper end of the guide rod is vertically slidably connected to the upper seat body.

[0019] The beneficial effect of the above technical solution is that in this way, the stability of the entire print head mechanism during its lifting and lowering driven by the telescopic cylinder is better.

[0020] In the above technical solution, two guide rods are provided, and the telescopic cylinder is located between the two guide rods.

[0021] The beneficial effect of the above technical solution is that in this way, the stability of the entire print head mechanism during its lifting and lowering driven by the telescopic cylinder can be further improved.

[0022] The second object of this solution is to provide a thermal transfer printer with a simple structure and in which the carbon tape paper is not easily wrinkled during thermal transfer.

[0023] In order to achieve the above object, another technical solution of the present invention is as follows: A thermal transfer printer includes the anti-wrinkle paper feeding assembly as described above.

[0024] The beneficial effect of the above technical solution is that the carbon tape paper has good flatness during thermal transfer of this thermal transfer printer, and the rejection rate is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view of the anti-wrinkle paper feeding assembly according to Embodiment 1 of the present invention;

[0026] Figure 2Another elevation view of the anti-wrinkle paper feeding assembly described in Embodiment 1 of the present utility model;

[0027] Figure 3 Schematic diagram of the paper feeding of the carbon tape paper described in Embodiment 1 of the present utility model;

[0028] Figure 4 Schematic diagram of the waste paper reel clamped between two first clamping parts described in Embodiment 1 of the present utility model;

[0029] Figure 5 Schematic diagram of the installation of the telescopic cylinder and the guide rod described in Embodiment 1 of the present utility model;

[0030] Figure 6 Schematic diagram of the structure of the cooling channel on the cooling plate described in Embodiment 1 of the present utility model.

[0031] In the figure: 1. Upper seat body; 11. Winding chuck; 111. Second clamping part; 12. Unwinding chuck; 121. First clamping part; 13. Upper spiral roller; 14. Bottom beam; 141. Slide hole; 15. Upper support plate; 2. Telescopic cylinder; 3. Print head mechanism; 31. Print head; 32. Idle roller; 33. Lower spiral roller; 34. Lower support plate; 35. Cooling plate; 351. Cooling hole; 352. Cooling channel; 36. Cooling fan; 37. Guide rod; 4. Carbon tape paper roll; 41. Carbon tape paper; 5. Waste paper reel. Detailed implementation manners

[0032] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model. In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the accompanying drawings. According to the following description and the claims, the advantages and features of the present utility model will be described more clearly. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present utility model.

[0033] Embodiment 1

[0034] As Figures 1 - 3As shown in the figure, this embodiment provides an anti-wrinkle paper feeding assembly, which includes an upper seat body 1, a telescopic cylinder 2, and a print head mechanism 3. The upper seat body 1 is horizontally arranged in the left-right direction. A winding chuck 11, an unwinding chuck 12, and an upper spiral roller 13 are arranged on the upper seat body 1. The telescopic cylinder 2 is installed at the lower end of the upper seat body 1, and its telescopic end faces downward. The print head mechanism 3 is horizontally arranged in the left-right direction, and the middle part of its upper end is connected to the telescopic end of the telescopic cylinder 2. The lower end of the print head mechanism 3 has a print head 31. Inertia rollers 32 and lower spiral rollers 33 are arranged on both the front and rear sides of the print head mechanism 3. A carbon tape roll 4 horizontally arranged in the left-right direction is detachably installed on the unwinding chuck 12. A waste paper reel 5 horizontally arranged in the left-right direction is detachably installed on the winding chuck 11. The unwinding end of the carbon tape roll 4 bypasses the lower part of the print head mechanism 3 in a U shape and is jointly supported by the upper spiral roller 13, the inertia rollers 32, and the lower spiral rollers 33. The print head 31 is used to perform thermal transfer on the carbon tape 41 passing below it. The telescopic cylinder 2 expands and contracts to drive the print head mechanism 3 to lift and lower relative to the upper seat body 1. Both the upper spiral roller 13 and the lower spiral roller 33 are double-threaded rollers, and the thread directions at both ends are opposite. In this way, during thermal transfer, the carbon tape roll is clamped by the unwinding chuck, and the waste paper reel is clamped by the winding chuck. When the carbon tape roll unwinds, the carbon tape passes below the print head, and the waste paper reel winds up the carbon tape after thermal transfer. The carbon tape between the carbon tape roll and the waste paper reel is supported by the upper spiral roller, the inertia rollers, and the lower spiral rollers. When the upper spiral roller and the lower spiral roller rotate, they will move the carbon tape to both sides to eliminate the wrinkles on the carbon tape, so as to ensure that the carbon tape is in a non-wrinkled unfolded state when passing below the print head. Preferably, two upper spiral rollers, two inertia rollers, and two lower spiral rollers are provided. The two upper spiral rollers are horizontally arranged in the left-right direction and are spaced apart in the front-rear direction. The horizontal heights of the two upper spiral rollers are lower than the horizontal heights of the unwinding chuck and the winding chuck. One inertia roller and one lower spiral roller are horizontally arranged in the left-right direction on both the front and rear sides of the print head mechanism. Preferably, the two inertia rollers and the two lower spiral rollers on the print head mechanism are staggered (for example, if the upper one is an inertia roller and the lower one is a lower spiral roller on the front side, then the upper one is a lower spiral roller and the lower one is an inertia roller on the rear side).

[0035] In this embodiment, both the upper spiral roller and the lower spiral roller are provided with linear thread grooves at both ends, and the thread directions at both ends are opposite. The upper spiral roller and the lower spiral roller rotate synchronously under the action of the carbon tape (the carbon tape roll unwinds, and the waste paper reel winds up synchronously. At this time, the carbon tape is supported and tightened by the upper spiral roller, the inertia rollers, and the lower spiral rollers. At the same time, the carbon tape has a certain linear velocity and synchronously drives the upper spiral roller and the lower spiral roller to rotate). Among them, when the upper spiral roller and the lower spiral roller rotate, the thread grooves on them will move the carbon tape to both sides respectively, so that the carbon tape is in an unfolded and non-wrinkled state.

[0036] As shown Figures 1 - 3 in the figure, in the above technical solution, the upper seat body 1 further includes a bottom beam 14 and two upper support plates 15. The bottom beam 14 is horizontally arranged in the left - right direction. The two upper support plates 15 are both horizontally arranged in the front - back direction and are respectively installed at the left and right ends of the upper end of the bottom beam 14. The unwinding chuck 12 and the winding chuck 11 are both arranged on the two upper support plates 15. The two upper spiral rollers 13 are placed between the two upper support plates 15, and both ends thereof are respectively rotatably connected to the two upper support plates 15. The bottom beam 14 forms the lower end of the upper seat body 1, and the telescopic cylinder 2 is installed in the middle of the bottom beam 14. By providing two upper support plates, the unwinding chuck, the winding chuck and the upper spiral rollers can be installed with the two upper support plates as carriers. The carbon tape roll and the waste paper roll can both be installed between the two upper support plates, and the bottom beam is provided for the installation of the telescopic cylinder.

[0037] In the above technical solution, the unwinding chuck 12 includes two first clamping portions 121 which are respectively installed on the two upper support plates 15 and are aligned with each other. The carbon tape roll 4 is placed between the two first clamping portions 121 and is clamped by the two first clamping portions 121; as Figure 4 shown in the figure, the winding chuck 11 includes two second clamping portions 111 which are respectively installed on the two upper support plates 15 and are aligned with each other. The waste paper roll 5 is placed between the two second clamping portions 111 and is clamped by the two second clamping portions 111. Its structure is simple. In this way, both ends of the carbon tape roll can be clamped by the two first clamping portions, and both ends of the waste paper roll can be clamped by the two second clamping portions. At this time, both the carbon tape roll and the waste paper roll are convenient to disassemble and assemble on the upper seat body (the clamping method of the carbon tape roll between the two first clamping portions is the same as the clamping method of the waste paper roll between the two second clamping portions). In this embodiment, both the unwinding chuck and the winding chuck can adopt existing safety chucks.

[0038] In the above technical solution, the print head mechanism 3 further includes two lower support plates 34. The two lower support plates 34 are both vertically arranged in the front - back direction at the left and right ends of the print head 31. Both ends of each idler roller 32 are respectively connected to the two lower support plates 34 (which can be fixedly connected). Both ends of each lower spiral roller 33 are respectively rotatably connected to the two lower support plates 34. By providing two lower support plates, the two idler rollers and the two lower spiral rollers can all be installed on the two lower support plates.

[0039] As Figure 5As shown, the print head mechanism 3 in the above technical solution further includes a cooling plate 35. The cooling plate 35 is installed at the upper end of the print head 31. The cooling plate 35 is used to cool down the print head 31. The telescopic end of the telescopic cylinder 2 is connected to the middle of the upper end of the cooling plate 35. In this way, the print head can be dissipated heat by the cooling plate to avoid the temperature of the print head being too high and affecting the effect of thermal transfer.

[0040] As Figure 5 and Figure 6 shown, the above technical solution further includes a cooling fan 36. The cooling plate 35 is provided with cooling holes 351 penetrating up and down. The lower end of the cooling plate 35 is provided with a cooling channel 352 communicating with the cooling holes 351. The cooling fan 36 is arranged at the upper end of the cooling plate 35 and is located at the cooling holes 351. Its structure is simple, and the cooling plate can be accelerated to dissipate heat by the cooling fan to achieve better heat dissipation. Preferably, two cooling holes 351 are provided on the cooling plate 35, and two cooling fans 36 are provided. The two cooling holes 351 correspond to the two cooling fans 36 one by one. Each cooling fan 36 is respectively installed at the corresponding cooling hole 351, and the connection part of the telescopic cylinder 2 and the cooling plate 35 is located between the two cooling fans 36. In this way, the entire cooling plate can be cooled by two cooling fans in cooperation, so that its heat dissipation effect can be further improved, and the temperature distribution of the entire print head 31 is relatively balanced. Further preferably, a guide rod 37 is further provided at the upper end of the print head mechanism 3. The upper end of the guide rod 37 is vertically slidably connected to the upper seat body 1. In this way, the stability of the entire print head mechanism when it is lifted and lowered by the telescopic cylinder is better. Preferably, two guide rods 37 are provided, and the telescopic cylinder 2 is located between the two guide rods 37. In this way, the stability of the entire print head mechanism when it is lifted and lowered by the telescopic cylinder can be further improved. Specifically, the bottom beam is provided with a vertically penetrating sliding hole 141, and the sliding hole 141 corresponds to and is aligned with the guide rod one by one. Each guide rod is inserted into the corresponding sliding hole 141 to be slidably connected to the bottom beam. Preferably, the cooling channels at the lower end of the cooling plate are distributed in a criss-cross manner, so that the cooling effect of the cooling plate on the print head is better.

[0041] In this embodiment, the telescopic cylinder can adopt a slide table cylinder, which is embedded inside the bottom beam, so that the structure of the entire anti-wrinkle print head assembly is more compact.

[0042] In this embodiment, the anti-wrinkle paper feeding assembly replaces some of the idler rollers with upper and lower spiral rollers on the basis of the prior art. That is, two upper spiral rollers and two lower spiral rollers jointly manipulate the carbon tape paper to a flat and wrinkle-free state for the transfer operation by the print head 31. In addition, this embodiment also adds a cooling plate and a cooling fan at the upper end of the print head to accelerate heat dissipation, thereby preventing the print head from affecting the thermal transfer operation due to excessive temperature (the content not elaborated in detail is the prior art and will not be elaborated here).

[0043] Embodiment 2

[0044] This embodiment provides a thermal transfer printer, including the anti-wrinkle paper feeding assembly described in Embodiment 1. The thermal transfer printer has good flatness of the carbon tape paper during thermal transfer and a low rejection rate.

[0045] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in any form; any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above description; however, any equivalent changes made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above, such as slight modifications, decorations, and evolutions, are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An anti-wrinkle paper feeding assembly, characterized in that, It includes an upper seat body (1), a telescopic cylinder (2) and a print head mechanism (3). The upper seat body (1) is horizontally arranged in the left - right direction. A winding chuck (11), an unwinding chuck (12) and an upper spiral roller (13) are arranged on the upper seat body (1). The telescopic cylinder (2) is installed at the lower end of the upper seat body (1), and its telescopic end faces downward. The print head mechanism (3) is horizontally arranged in the left - right direction, and the middle part of its upper end is connected to the telescopic end of the telescopic cylinder (2). The lower end of the print head mechanism (3) has a print head (31). Inertia rollers (32) and lower spiral rollers (33) are arranged on both the front and back sides of the print head mechanism (3). The unwinding chuck (12) is used for detachably installing a carbon tape roll (4) horizontally arranged in the left - right direction. The winding chuck (11) is used for detachably installing a waste paper reel (5) horizontally arranged in the left - right direction. The unwinding end of the carbon tape roll (4) bypasses the lower part of the print head mechanism (3) in a U - shape and is jointly supported by the upper spiral roller (13), the inertia rollers (32) and the lower spiral rollers (33). The print head (31) is used for thermally transferring the carbon tape (41) passing under it. The telescopic cylinder (2) expands and contracts to drive the print head mechanism (3) to lift relative to the upper seat body (1). Both the upper spiral roller (13) and the lower spiral roller (33) are double - threaded rollers, and the thread directions at both ends are opposite.

2. The anti-wrinkle paper feeding assembly according to claim 1, characterized in that, The upper seat body (1) further includes a bottom beam (14) and two upper support plates (15). The bottom beam (14) is horizontally arranged in the left - right direction. The two upper support plates (15) are both horizontally arranged in the front - back direction and are respectively installed at the left and right ends of the upper end of the bottom beam (14). The unwinding chuck (12) and the winding chuck (11) are both arranged on the two upper support plates (15). The upper spiral roller (13) is placed between the two upper support plates (15), and its two ends are respectively rotatably connected to the two upper support plates (15). The bottom beam (14) forms the lower end of the upper seat body (1), and the telescopic cylinder (2) is installed in the middle of the bottom beam (14).

3. The anti-crease paper feeding assembly according to claim 2, characterized in that, The unwinding chuck (12) includes two first clamping parts (121) respectively installed on the two upper support plates (15) and aligned with each other. The carbon tape roll (4) is placed between the two first clamping parts (121) and is clamped by the two first clamping parts (121); the winding chuck (11) includes two second clamping parts (111) respectively installed on the two upper support plates (15) and aligned with each other. The waste paper reel (5) is placed between the two second clamping parts (111) and is clamped by the two second clamping parts (111).

4. The anti-wrinkle paper feeding assembly according to claim 1, wherein The print head mechanism (3) further includes two lower support plates (34). The two lower support plates (34) are both vertically arranged in the front - back direction at the left and right ends of the print head (31). Both ends of each inertia roller (32) are respectively connected to the two lower support plates (34). Both ends of each lower spiral roller (33) are respectively rotatably connected to the two lower support plates (34).

5. The anti-wrinkle paper feeding assembly according to claim 4, characterized in that, The print head mechanism (3) further includes a cooling plate (35). The cooling plate (35) is installed at the upper end of the print head (31). The cooling plate (35) is used to cool down the print head (31). The telescopic end of the telescopic cylinder (2) is connected to the middle of the upper end of the cooling plate (35).

6. The anti-wrinkle paper feeding assembly according to claim 5, characterized in that, It further includes a cooling fan (36). The cooling plate (35) is provided with cooling holes (351) penetrating up and down. A cooling channel (352) communicating with the cooling holes (351) is provided at the lower end of the cooling plate (35). The cooling fan (36) is arranged at the upper end of the cooling plate (35) and is located at the cooling holes (351).

7. The anti-wrinkle paper feeding assembly according to claim 6, wherein Two cooling holes (351) are provided on the cooling plate (35), and two cooling fans (36) are provided. The two cooling holes (351) correspond to the two cooling fans (36) one by one. Each cooling fan (36) is respectively installed at the corresponding cooling hole (351). And the connection part of the telescopic cylinder (2) and the cooling plate (35) is located between the two cooling fans (36).

8. The anti-crease paper feeding assembly according to claim 1, wherein, A guide rod (37) is further provided at the upper end of the print head mechanism (3). The upper end of the guide rod (37) is vertically and slidably connected to the upper seat body (1).

9. The anti-wrinkle paper feeding assembly according to claim 8, wherein, Two guide rods (37) are provided, and the telescopic cylinder (2) is located between the two guide rods (37).

10. A thermal transfer printer, characterized in that, It includes the anti-wrinkle paper feeding assembly according to any one of claims 1-9.

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