Traction mechanism for transfer printing film

Abstract

The utility model discloses a traction mechanism for a transfer printing film, which comprises a support frame, two driven feeding rollers attached to each other are arranged on the support frame, a bottom plate is arranged at the lower end of the support frame, a mounting groove is arranged on the bottom plate, a rotating screw rod is arranged in the mounting groove, a sliding block is connected onto the screw rod in a screwing manner, and the sliding block is arranged on the support frame. The power input end of the screw extends out of the mounting groove and is connected with the power output end of a motor, the motor is fixedly connected with the bottom plate, the top end of the sliding block is connected with a second support, the top end of the second support is provided with a conveying belt B. A rubber auxiliary roller moves downwards, so that a conductive rod A makes contact with a metal conductive block on an alarm bell, and the alarm bell is powered on. And a worker is notified to adjust the tension, so that large loss is prevented, the practicability of the equipment is improved, and the use requirement can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of decorative film production, in particular to a traction mechanism for transfer films. Background Art

[0002] The thermal transfer decoration process is a process in which the decorative pattern on the thermal transfer is transferred to the surface of the decorated building material by heating the decorative film once, forming a high-quality decorative film. During the production process of the decorative film, a traction mechanism is required to apply force to reel it up and move it on the production line.

[0003] The traction mechanism used in the production process of the decorative film in the prior art has the following disadvantages: 1. When the decorative film is pulled, the operator cannot directly observe the tension on the surface of the decorative film, and thus cannot well control the tension of the decorative film, which may easily cause damage to the decorative film; 2. When the decorative film is pulled and rolled up, the external tension will have a great impact, affecting the rolling efficiency. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a traction mechanism for a transfer film.

[0005] In order to achieve the above technical effects, the utility model adopts the following scheme:

[0006] A traction mechanism for a transfer film comprises a support frame, on which two driven feed rollers are mounted, a bottom plate is connected to the bottom of the support frame, a mounting groove is provided on the bottom plate, a rotating screw is provided in the mounting groove, a slider is provided on the screw, the screw is threadedly connected to the slider, a power input end of the screw extends to the outside of the mounting groove and is connected to the power output end of a motor, the motor is fixedly connected to the bottom plate, a second bracket is interference-connected at the top of the slider, a conveyor belt B is mounted at the top of the second bracket, a rubber insulating shell is mounted on the bottom plate, a hollow conductive tube is penetrated on the bottom plate, the top of the hollow conductive tube penetrates the bottom plate and extends into the rubber insulating shell, a conductive rod B is provided in the hollow conductive tube, the top of the conductive rod B penetrates the rubber insulating shell and is connected to an auxiliary rubber roller, and an actively rotating convergence roller is provided in the direction of the conveyor belt B away from one end of the auxiliary rubber roller.

[0007] A preferred technical solution is that a conductive rod A is fixedly connected to one side surface of the conductive rod B, an alarm is installed on the bottom plate, a metal conductive block is installed on the top of the alarm, and the metal conductive block and the conductive rod A are on the same vertical line.

[0008] According to a preferred technical solution, the top of the support frame is connected to a top plate, a hydraulic cylinder is installed on the top plate, a hydraulic rod is connected to the bottom of the hydraulic cylinder, the bottom end of the hydraulic rod passes through the top plate and is connected to a first bracket, and a conveyor belt A is fixedly connected to the bottom end of the first bracket.

[0009] According to a preferred technical solution, a connecting rod is connected to the top plate, a focusing roller is installed at one end of the connecting rod away from the top plate, and the focusing roller is driven to rotate by a rotary motor.

[0010] According to a preferred technical solution, the power input ends of the motor, conveyor belt A, conveyor belt B and hollow conductive tube are connected to the power output ends of an external power source.

[0011] Compared with the prior art, the beneficial effects are:

[0012] 1. When the surface tension of the film increases, the rubber auxiliary roller will be pulled up, and then the conductive rod B will be pulled out of the hollow conductive tube, so that the traction device is powered off. Then the motor can be turned on to rotate the screw and adjust the position of the slider to adjust the position of the conveyor belt B to achieve the purpose of adjusting the tension. When the tension on the transfer film is too small or broken, the rubber auxiliary roller moves downward, so that the conductive rod A contacts the metal conductive block on the alarm to energize the alarm and notify the staff to adjust the tension, thereby preventing greater losses, improving the practicability of the equipment, and meeting the use requirements.

[0013] 2. The transfer film enters the traction mechanism through the driven feed roller, and then passes through the auxiliary rubber roller and conveyor belt B and is rolled up on the gathering roller. When the transfer film passes through the auxiliary rubber roller, the surface tension of the transfer film is at a normal level, so the conductive rod B is inside the hollow conductive tube, so the traction mechanism is powered as a whole to pull the transfer film. The hydraulic cylinder is started to make the hydraulic rod drive the first bracket to press down until the conveyor belt A presses the transfer film on the conveyor belt B, and then the hydraulic cylinder is stopped. At this time, the conveyor belts A and B press the transfer film tightly and are only affected by the two conveyor belts. Therefore, the transfer film passing between the two conveyor belts is not affected by external tension, and then the transfer film is rolled up on the gathering roller, which improves the traction efficiency of the transfer film. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the utility model.

[0016] Figure numerals: 1. support frame; 2. driven feed roller; 3. auxiliary rubber roller; 4. conductive rod A; 5. bottom plate; 6. top plate; 7. hydraulic rod; 8. hydraulic cylinder; 9. first bracket; 10. metal conductive block; 11. alarm; 12. hollow conductive tube; 13. rubber insulating shell; 14. conductive rod B; 15. mounting groove; 16. slider; 17. second bracket; 18. screw; 19. conveyor belt A; 20. connecting rod; 21. conveyor belt B; 22. convergence roller; 23. motor; 24. slide rod. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] A traction mechanism for a transfer film comprises a support frame 1, on which two driven feed rollers 2 are mounted in contact with each other, the support frame 1 is connected to a bottom plate 5 below, an installation groove 15 is provided on the upper surface of the bottom plate 5, a rotating screw 18 is provided in the installation groove 15, a movable slider 16 is provided on the screw 18, the screw 18 is screwed and connected with the slider 16, the power input end of the screw 18 extends to the power output end of the motor 23 connected to the outside of the installation groove 15, in order to prevent the slider from rotating, a slide bar 24 parallel to the screw is fixed in the installation groove, the slider has a slide hole matching the slide bar 24, and the slide bar 24 passes through the slide hole The motor 23 is fixedly connected to the base plate 5, the top of the slider 16 is interference-connected with the second bracket 17, the top of the second bracket 17 is installed with a conveyor belt B21, the upper surface of the base plate 5 is installed with a rubber insulating shell 13, a hollow conductive tube 12 is penetrated by the base plate 5, the top of the hollow conductive tube 12 penetrates the base plate 5 and extends into the rubber insulating shell 13, a conductive rod B14 is cooperated in the hollow conductive tube 12, the top of the conductive rod B14 penetrates the rubber insulating shell 13 and is cooperated with the auxiliary rubber roller 3, and the conveyor belt B21 is provided with an actively rotating convergence roller 22 in the direction away from one end of the auxiliary rubber roller 3.

[0019] The conductive rod A4 is fixedly connected to one side surface of the conductive rod B14. An alarm bell 11 is installed on the bottom plate 5. A metal conductive block 10 is installed on the top of the alarm bell 11. The metal conductive block 10 is on the same vertical line as the conductive rod A4.

[0020] When the tension on the transfer film is too low or broken, the rubber auxiliary roller 3 moves downward, so that the conductive rod A4 contacts the metal conductive block 10 on the alarm bell 11 to energize the alarm bell 11 and notify the staff to adjust the tension.

[0021] A top plate 6 is welded to the top of the support frame 1, a hydraulic cylinder 8 is installed on the surface of the top plate 6, a hydraulic rod 7 is connected to the bottom of the hydraulic cylinder 8, the bottom end of the hydraulic rod 7 passes through the top plate 6 and a first bracket 9 is welded thereon, and a conveyor belt A19 is fixedly connected to the bottom end of the first bracket 9.

[0022] The hydraulic cylinder 8 is activated so that the hydraulic rod 7 drives the first bracket 9 to press downward, and the hydraulic cylinder 8 is stopped when the conveyor belt A19 presses the transfer film onto the conveyor belt B21.

[0023] A connecting rod 20 is interference-connected on one side surface of the top plate 6 , and a convergence roller 22 is installed at one end of the connecting rod 20 away from the top plate 6 . The convergence roller 22 is driven to rotate by a rotary motor.

[0024] It is convenient to roll the transfer film.

[0025] The power input ends of the motor 23, the conveyor belt A19, the conveyor belt B21 and the hollow conductive tube 12 are connected to the power output end of the external power supply.

[0026] The transfer film can be effectively and conveniently pulled, thereby improving the pulling effect.

[0027] When in use, the transfer film enters the traction mechanism through two driven feed rollers 2, and then passes through the auxiliary rubber roller 3 and the conveyor belt B21 before being rolled up on the gathering roller 22. When the transfer film passes through the auxiliary rubber roller 3, the surface tension of the transfer film is at a normal level, so the conductive rod B14 is inside the hollow conductive tube 12, so the traction mechanism is powered as a whole to pull the transfer film, and the hydraulic cylinder 8 is started so that the hydraulic rod 7 drives the first bracket 9 to press down until the conveyor belt A19 presses the transfer film onto the conveyor belt B21, and then the hydraulic cylinder 8 is stopped. At this time, the conveyor belt A19 and the conveyor belt B21 press the transfer film tightly and are only affected by the two conveyor belts, so the transfer film passing between the two conveyor belts is not affected by external tension. The transfer film is then rolled up on the focusing roller 22, which improves the traction efficiency of the transfer film. When the surface tension of the film increases, the rubber auxiliary roller 3 will be pulled up, and then the conductive rod B14 will be pulled out of the hollow conductive tube 12, so that the traction device is powered off, and then the motor 23 can be turned on to rotate the screw 18, adjust the position of the slider 16, and thus adjust the position of the conveyor belt B21 to achieve the purpose of adjusting the tension, thereby preventing greater losses, improving the practicability of the equipment, and being able to meet the use requirements. When the tension on the transfer film is too small or broken, the rubber auxiliary roller 3 moves downward, so that the conductive rod A4 contacts the metal conductive block 10 on the alarm 11, so that the alarm 11 is energized, and the staff is notified to adjust the tension.

[0028] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A traction mechanism for a transfer film, characterized in that: The invention comprises a support frame (1), on which two driven feed rollers (2) are mounted and attached to each other, the bottom of the support frame (1) is connected to a bottom plate (5), a mounting groove (15) is provided on the bottom plate (5), a rotating screw rod (18) is provided in the mounting groove (15), a sliding block (16) is provided on the screw rod (18), the screw rod (18) and the sliding block (16) are screwed together, the power input end of the screw rod (18) extends to the power output end of the motor (23) connected to the outside of the mounting groove (15), the motor (23) is fixedly connected to the bottom plate (5), and a second bracket is connected to the top of the sliding block (16) by interference fit. (17), a conveyor belt B (21) is installed at the top of the second bracket (17), a rubber insulating shell (13) is installed on the bottom plate (5), a hollow conductive tube (12) is penetrated on the bottom plate (5), the top of the hollow conductive tube (12) penetrates the bottom plate (5) and extends into the rubber insulating shell (13), a conductive rod B (14) is provided in the hollow conductive tube (12), the top of the conductive rod B (14) penetrates the rubber insulating shell (13) and is connected to an auxiliary rubber roller (3), and an actively rotating convergence roller (22) is provided in the direction away from one end of the auxiliary rubber roller (3).

2. A traction mechanism for transfer film according to claim 1, characterized in that: A conductive rod A (4) is fixedly connected to a surface of one side of the conductive rod B (14); an alarm bell (11) is installed on the bottom plate (5); a metal conductive block (10) is installed on the top of the alarm bell (11); and the metal conductive block (10) and the conductive rod A (4) are on the same vertical line.

3. A traction mechanism for transfer film according to claim 1, characterized in that: The top of the support frame (1) is connected to a top plate (6), a hydraulic cylinder (8) is installed on the top plate (6), the bottom of the hydraulic cylinder (8) is cooperatively connected to a hydraulic rod (7), the bottom end of the hydraulic rod (7) passes through the top plate (6) and is connected to a first bracket (9), and the bottom end of the first bracket (9) is fixedly connected to a conveyor belt A (19).

4. A traction mechanism for transfer film according to claim 3, characterized in that: The top plate (6) is connected to a connecting rod (20), and a convergence roller (22) is installed at one end of the connecting rod (20) away from the top plate (6), and the convergence roller (22) is driven to rotate by a rotary motor.

5. A traction mechanism for transfer film according to claim 1, characterized in that: The power input ends of the motor (23), the conveyor belt A (19), the conveyor belt B (21) and the hollow conductive tube (12) are connected to the power output end of an external power source.

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