Adjustable heat transfer film winding and tensioning device

Abstract

The utility model belongs to the technical field of heat transfer film processing, particularly relates to an adjustable heat transfer film winding and tensioning device, and provides the following scheme aiming at the problems that the tensioning degree is difficult to adjust when a heat transfer film is conveyed and the film is easy to loosen in the winding process of a winding roller in the background technology: the adjustable heat transfer film winding and tensioning device comprises a rack, a tensioning control roller with an encoder is rotationally connected to the inner wall of the rack, and a mounting frame is welded to the inner wall of the rack. Under the condition that a heat transfer printing film is too tight or too loose, the tensioning degree of the heat transfer printing film can be automatically adjusted by driving the tensioning adjusting roller to ascend and descend through the air cylinder, flexibility and practicability are achieved, the balance of the tension of the film is guaranteed, the inclined rod can be controlled to incline downwards under the elastic effect of the spring, the inclined rod can drive the pressing roller to abut against one side of the winding roller, and therefore the heat transfer printing film can be automatically tensioned. The tightness of the heat transfer printing film in the winding process is guaranteed, the problem of looseness of the heat transfer printing film is avoided, and then the quality of subsequent products after transfer printing is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of heat transfer film processing technology, and in particular to an adjustable heat transfer film winding and tensioning device. Background Technology

[0002] Heat transfer film is a special printing material mainly used to transfer patterns or text onto the surface of various materials, such as plastics, paper, metals, and glass. It uses a polymer film as a substrate and, through special printing processes and techniques, coats the film surface with heat transfer inks of different colors, patterns, or text. Then, using equipment such as a heat transfer machine, the printed patterns or text are transferred onto the target material, achieving permanent adhesion of the patterns or text.

[0003] Heat transfer film is made by printing patterns onto an existing film through continuous feeding. However, there are several issues to consider during the film feeding process. First, if the film is too tight or too loose during feeding, it will affect the printing quality. Second, after printing, the film needs to be wound onto a roller. During the winding process, the film is prone to loosening, which can lead to deviations in the subsequent heat transfer process and thus affect the product quality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an adjustable heat transfer film winding and tensioning device, which overcomes the deficiencies of existing technologies and effectively solves the problems of difficulty in adjusting the tension of heat transfer film during transportation and the easy loosening of the film by the winding roller during the winding process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable heat transfer film winding and tensioning device includes a frame, a tension control roller with an encoder is rotatably connected to the inner wall of the frame, and a mounting frame is welded to the inner wall of the frame. A cylinder is fixedly connected to the top outer wall of the mounting frame by screws, and a tension adjustment roller is fixedly connected to the piston rod of the cylinder.

[0007] The outer wall of one side of the frame is rotatably connected with symmetrically distributed diagonal bars, and springs are fixedly connected between the diagonal bars and the frame. Pressure rollers are rotatably connected between two of the diagonal bars.

[0008] Preferably, a column is fixedly connected to the outer wall of one end of the tension adjusting roller, and the column is slidably connected to the inner wall of the mounting frame. An electrical control box is installed on the top outer wall of the mounting frame, and the electrical control box and the encoder of the tension adjusting roller are connected by a signal line.

[0009] Preferably, a servo motor is fixedly connected to one side of the outer wall of the frame by screws, and a take-up roller is fixedly connected to the output shaft of the servo motor. A side plate is fixedly connected to one end of the outer wall of the take-up roller, and an internal threaded plate is screwed to the other end of the outer wall of the take-up roller.

[0010] Preferably, symmetrically distributed crossbeams are welded to the top of the outer wall on the other side of the frame, and an unwinding roller is rotatably connected between the two crossbeams.

[0011] Preferably, an ink supply box is installed on the inner wall of the frame, and an ink supply tube is fixedly connected to the outer wall of one end of the ink supply box.

[0012] Preferably, an ink outlet roller is rotatably connected to the inner wall of the ink supply cartridge, and an ink transfer roller is rotatably connected to the bottom of the outer wall of the ink outlet roller, and an ink pressure roller is rotatably connected to the bottom of the outer wall of the ink transfer roller.

[0013] Preferably, a guide roller is rotatably connected to the inner wall of the frame, and a heat transfer film is provided on the outer wall of the take-up roller and the unwind roller, with the heat transfer film slidably connected to the outer wall of the guide roller.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The adjustable heat transfer film winding and tensioning device designed in this paper has an encoder on the tension control roller that can monitor the conveying speed of the heat transfer film and thus determine the tension level. If the heat transfer film is too tight or too loose, the tension adjustment roller can be raised and lowered by the cylinder to automatically adjust the tension of the heat transfer film. It is flexible and practical and ensures the balance of film tension.

[0016] 2. The adjustable heat transfer film winding and tensioning device in this design can control the inclined rod to tilt downward under the elastic action of the spring. The inclined rod can drive the pressure roller to press against one side of the winding roller, ensuring the tightness of the heat transfer film during winding and avoiding the problem of loosening of the heat transfer film, thereby ensuring the quality of the subsequent product after transfer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the adjustable heat transfer film winding and tensioning device proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the frame of the adjustable heat transfer film winding and tensioning device proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the mounting frame connection structure of the adjustable heat transfer film winding and tensioning device proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the inclined rod connection structure of the adjustable heat transfer film winding and tensioning device proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the servo motor connection structure of the adjustable heat transfer film winding and tensioning device proposed in this utility model.

[0022] In the diagram: 1. Frame; 2. Tension control roller; 3. Mounting bracket; 4. Cylinder; 5. Tension adjustment roller; 6. Electrical control box; 7. Diagonal bar; 8. Spring; 9. Pressure roller; 10. Column; 11. Servo motor; 12. Take-up roller; 13. Side plate; 14. Internal threaded plate; 15. Crossarm; 16. Unwind roller; 17. Ink supply cartridge; 18. Ink supply tube; 19. Ink output roller; 20. Ink rotation roller; 21. Ink pressure roller; 22. Guide roller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1, refer to Figure 3 An adjustable heat transfer film winding and tensioning device includes a frame 1, a tension control roller 2 with an encoder is rotatably connected to the inner wall of the frame 1, and a mounting frame 3 is welded to the inner wall of the frame 1. A cylinder 4 is fixedly connected to the top outer wall of the mounting frame 3 by screws, and a tension adjustment roller 5 is fixedly connected to the piston rod of the cylinder 4.

[0025] In this embodiment, the encoder on the tension control roller 2 can monitor the conveying speed of the heat transfer film and thus determine the tension level. If the heat transfer film is too tight or too loose, the tension adjustment roller 5 can be raised and lowered by the cylinder 4 to automatically adjust the tension of the heat transfer film. This is flexible and practical, and ensures the balance of film tension.

[0026] Example 2, refer to Figure 4 An adjustable heat transfer film winding and tensioning device is provided. A symmetrically distributed diagonal bar 7 is rotatably connected to one side of the outer wall of the frame 1, and a spring 8 is fixedly connected between the diagonal bar 7 and the frame 1. A pressure roller 9 is rotatably connected between the two diagonal bars 7.

[0027] In this embodiment, the inclined rod 7 can be controlled to tilt downward under the elastic action of the spring 8. The inclined rod 7 can drive the pressure roller 9 to press against one side of the take-up roller 12, ensuring the tightness of the heat transfer film during the take-up process, avoiding the problem of loosening of the heat transfer film, and thus ensuring the quality of the subsequent product after transfer.

[0028] Reference Figure 3A column 10 is fixedly connected to the outer wall of one end of the tension adjusting roller 5, and the column 10 is slidably connected to the inner wall of the mounting frame 3. An electrical control box 6 is installed on the top outer wall of the mounting frame 3, and the electrical control box 6 and the encoder of the tension adjusting roller 5 are connected by a signal line.

[0029] Reference Figure 5 A servo motor 11 is fixedly connected to one side of the outer wall of the frame 1 by screws, and a take-up roller 12 is fixedly connected to the output shaft of the servo motor 11. A side plate 13 is fixedly connected to one end of the outer wall of the take-up roller 12, and an internal thread plate 14 is screwed to the other end of the outer wall of the take-up roller 12.

[0030] Reference Figure 1 On the other side of the frame 1, symmetrically distributed crossarms 15 are welded to the top of the outer wall, and unwinding rollers 16 are rotatably connected between the two crossarms 15.

[0031] Reference Figure 2 An ink supply box 17 is installed on the inner wall of the frame 1, and an ink supply tube 18 is fixedly connected to the outer wall of one end of the ink supply box 17.

[0032] Reference Figure 2 An ink delivery roller 19 is rotatably connected to the inner wall of the ink cartridge 17, and a rotating ink roller 20 is rotatably connected to the bottom of the outer wall of the ink delivery roller 19. An ink pressure roller 21 is rotatably connected to the bottom of the outer wall of the rotating ink roller 20.

[0033] Reference Figure 2 A guide roller 22 is rotatably connected to the inner wall of the frame 1, and a heat transfer film is provided on the outer wall of the take-up roller 12 and the unwind roller 16. The heat transfer film is slidably connected to the outer wall of the guide roller 22.

[0034] Working principle: The film on the unwind roller 16 is conveyed into the frame 1 by the guide roller 22. The ink supply tube 18 supplies ink to the ink supply box 17. The ink is transferred to the pressure roller 21 by the ink output roller 19 and the transfer roller 20. The pressure roller 21 presses the corresponding pattern onto the film. Before this, the encoder on the tension control roller 2 can monitor the conveying speed of the heat transfer film and thus determine the tension. If the heat transfer film is too tight or too loose, the tension adjustment roller 5 can be raised and lowered by the cylinder 4 to automatically adjust the tension of the heat transfer film. At this time, the heat transfer film formed by the film will be uniformly wound onto the take-up roller 12. Then, under the elastic action of the spring 8, the inclined rod 7 can be controlled to tilt downward. The inclined rod 7 can drive the pressure roller 9 to press against one side of the take-up roller 12 to ensure that the heat transfer film can be tightly wound.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. Adjustable heat transfer film winding and tensioning device comprising a frame (1), characterized in that, The inner wall of the frame (1) is rotatably connected with a tension control roller (2) provided with an encoder, and a mounting frame (3) is welded to the inner wall of the frame (1), the top outer wall of the mounting frame (3) is fixedly connected with an air cylinder (4) through screws, and the piston rod of the air cylinder (4) is fixedly connected with a tension adjusting roller (5); The outer wall of one side of the frame (1) is rotatably connected with symmetrically distributed inclined rods (7), and the inclined rods (7) and the frame (1) are fixedly connected with springs (8) therebetween, and the two inclined rods (7) are rotatably connected with a compression roller (9).

2. The adjustable thermal transfer film take-up and tensioning device of claim 1, wherein, One end of the outer wall of the tension adjusting roller (5) is fixedly connected with a stand (10), and the stand (10) is slidably connected to the inner wall of the mounting frame (3), an electric control box (6) is mounted on the top outer wall of the mounting frame (3), and the electric control box (6) and the encoder of the tension adjusting roller (5) are connected through signal lines.

3. The adjustable thermal transfer film take-up and tensioning device of claim 1, wherein, The outer wall of one side of the frame (1) is fixedly connected with a servo motor (11) through screws, and the output shaft of the servo motor (11) is fixedly connected with a winding roller (12), one end of the outer wall of the winding roller (12) is fixedly connected with a side disc (13), and the other end of the outer wall of the winding roller (12) is screwed with an internally threaded disc (14).

4. The adjustable thermal transfer film take-up and tensioning device of claim 1, wherein, The top of the other outer wall of the frame (1) is welded with symmetrically distributed cross arms (15), and a unwinding roller (16) is rotatably connected between the two cross arms (15).

5. The adjustable thermal transfer film take-up and tensioning device of claim 1, wherein, The inner wall of the frame (1) is provided with an ink supply box (17), and one end of the outer wall of the ink supply box (17) is fixedly connected with an ink supply pipe (18).

6. The adjustable thermal transfer film take-up and tensioning device of claim 5, wherein, The inner wall of the ink supply box (17) is rotatably connected with an ink outlet roller (19), the bottom of the outer wall of the ink outlet roller (19) is rotatably connected with a ink turning roller (20), and the bottom of the outer wall of the ink turning roller (20) is rotatably connected with a ink pressing roller (21).

7. The adjustable thermal transfer film take-up and tensioning device of claim 1, wherein, The inner wall of the frame (1) is rotatably connected with a guide roller (22), and the outer walls of the winding roller (12) and the unwinding roller (16) are provided with a thermal transfer film, which is slidably connected to the outer wall of the guide roller (22).

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