Plastic film double-sided printing device

Abstract

The utility model belongs to the field of double-sided printing devices, particularly relates to a double-sided printing device for a plastic film, and aims to solve the problems that the tightness of the wound film is different due to the fact that the tightness of the film winding cannot be adjusted in the existing winding process, and the film cannot be tightly wound on a winding roller after the film is manually wound on the winding roller. In order to solve the problem that a wind-up roller rotates automatically to wind up, the utility model provides the following scheme that the wind-up device comprises a base, a cross-shaped supporting frame is fixedly mounted at the top of the base, a second guide roller is rotationally connected in the cross-shaped supporting frame, a third guide roller is arranged in the cross-shaped supporting frame, and a fourth guide roller is rotationally connected in the cross-shaped supporting frame; the top of the base is fixedly connected with two second supporting frames, and a winding roller is rotationally connected between the two second supporting frames. According to the utility model, through the cooperative use of the adjusting assembly and the clamping assembly, not only is the operation process simplified, but also the working efficiency is improved, and meanwhile, the stability of the film in the printing and rolling process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of double-sided printing devices, in particular to a double-sided printing device for a plastic film. Background Art

[0002] In recent years, with the rapid development of the plastics processing industry, plastic film, as an important variety of plastic extrusion products, has been increasingly used in a wide range of fields, especially in the packaging industry. Plastic film has gradually replaced traditional paper due to its non-toxic, odorless, moisture-proof and stable performance characteristics, and has become the first choice for packaging materials. In order to meet the market's high-quality requirements for plastic film packaging, plastic film printing technology is also constantly innovating and developing.

[0003] The existing double-sided printing device for plastic films still has some shortcomings in actual use:

[0004] 1. After the existing double-sided printing device of plastic film completes its work, the plastic film needs to be rolled up. However, the tightness of the film cannot be adjusted during the rolling process, resulting in different tightness of the rolled film.

[0005] 2. In the existing double-sided printing device for plastic films, when winding the film, the film is mainly wound tightly on the winding roller manually, and then the winding roller automatically rotates to rewind the film. This winding method has a relatively slow speed. Utility Model Content

[0006] The purpose of the utility model is to solve the problem in the prior art that the tightness of the film cannot be adjusted during the winding process, resulting in different tightness of the wound film. The film is manually wound tightly on the winding roller and then wound automatically by the winding roller. A double-sided printing device for plastic film is proposed.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A plastic film double-sided printing device includes a base, a cross support frame fixedly mounted on the top of the base, a second guide roller rotatably connected to the cross support frame, a third guide roller provided in the cross support frame, a fourth guide roller rotatably connected to the cross support frame, two second support frames fixedly connected to the top of the base, and a winding roller rotatably connected between the two second support frames;

[0009] It also includes an adjustment component, and the adjustment component is located on the cross support frame, and the height of the third guide roller on the cross support frame can be adjusted by the adjustment component;

[0010] It also includes a clamping assembly, and the clamping assembly is located on the winding roller, and one end of the plastic film can be fixed by the clamping assembly.

[0011] In one possible design, the adjustment assembly includes an electric push rod fixedly connected to a cross support frame, a U-shaped frame is rotatably sleeved on the rotating shafts at both ends of the third guide roller, and the top end of the output shaft of the electric push rod is fixedly connected to the bottom end of the U-shaped frame, two sliders are slidably connected in the cross support frame, and the rotating shafts at both ends of the third guide roller rotate through the sliders.

[0012] In one possible design, the clamping assembly includes two rotating shafts rotatably connected to the winding roller, and the sides of the two rotating shafts that are close to each other are fixedly connected to the same clamping plate, both ends of the clamping plate are fixedly connected to torsion springs, and the torsion springs are sleeved on the outer wall of the rotating shaft, and the sides of the two torsion springs that are away from each other are fixedly connected to the winding roller, and the winding roller is provided with a clamping groove, and the clamping plate is located in the clamping groove.

[0013] In a possible design, a pressing plate is provided at one end of the clamping plate.

[0014] In a possible design, the top of the base is rotatably connected to a first guide roller through a support frame, and the first guide roller is flush with the second guide roller. Two first support frames are fixedly installed on the top of the base, and a reeling roller is provided between the two first support frames. An opening is provided on the top of the first support frame, and the reeling roller is placed in the opening of the first support frame through the rotating shafts at both ends.

[0015] In a possible design, a printing press is fixedly mounted on the top of the base, and the printing press is located between the first guide roller and the second guide roller.

[0016] In this application, the plastic film wrapped on the unwinding roller is placed on two first support frames through the unwinding roller, and passes through the printing press from under the first guide roller for printing, then passes under the second guide roller, and passes over the third guide roller to the bottom of the fourth guide roller, and is wound on the winding roller. The pressing plate is pressed to make the clamping plate flip over through the rotating shaft, and one end of the plastic film is placed under the clamping plate. The pressure on it is released, and the clamping plate and the clamping groove are cooperated by the torsion spring to clamp and fix one end of the plastic film, and the winding roller is driven to rotate by the driving motor on one side of the base to automatically wind up the printed film. During the winding process, the output shaft of the electric push rod is contracted to drive the U-shaped frame to adjust the third guide roller up and down, and the third guide roller slides in the cross support frame through the slider, thereby realizing the tightness adjustment of the plastic film winding.

[0017] Beneficial effects:

[0018] In the utility model, the double-sided printing device for plastic film is designed by adjusting the height of the third guide roller by driving the U-shaped frame with an electric push rod, so that the third guide roller can be adjusted according to the tightness required for winding the plastic film.

[0019] In the utility model, the double-sided printing device for plastic films has a clamping assembly that realizes fast and stable clamping of one end of the plastic film through an ingenious combination of a clamping plate, a rotating shaft, a torsion spring and other components. The user only needs to press the pressing plate to flip the clamping plate and clamp the film. After releasing the plate, the clamping state is maintained by the elastic action of the torsion spring.

[0020] In the utility model, the coordinated use of the adjusting component and the clamping component not only simplifies the operation process, but also improves the work efficiency, while ensuring the stability of the film during the printing and winding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the plastic film double-sided printing device proposed by the utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the cross support frame of the plastic film double-sided printing device proposed in the present invention;

[0023] Figure 3 This is a schematic diagram of the exploded structure of the take-up roller of the plastic film double-sided printing device proposed by the present invention.

[0024] In the figure: 1. Base; 2. Printing machine; 3. First support frame; 4. Cross support frame; 5. Second support frame; 6. Winding roller; 7. Unwinding roller; 8. First guide roller; 9. Second guide roller; 10. Third guide roller; 11. Fourth guide roller; 12. U-shaped frame; 13. Electric push rod; 14. Slider; 15. Torsion spring; 16. Clamping groove; 17. Clamping plate; 18. Rotating shaft; 19. Pressing plate. DETAILED DESCRIPTION

[0025] 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 the embodiments.

[0026] Example 1

[0027] Reference Figure 1The double-sided printing device of plastic film includes a base 1, a cross support frame 4 is fixedly installed on the top of the base 1, a second guide roller 9 is rotatably connected to the cross support frame 4, a third guide roller 10 is provided in the cross support frame 4, a fourth guide roller 11 is rotatably connected to the cross support frame 4, two second support frames 5 are fixedly connected to the top of the base 1, and a winding roller 6 is rotatably connected between the two second support frames 5; it also includes an adjusting component, and the adjusting component is located on the cross support frame 4, and the height of the third guide roller 10 on the cross support frame 4 can be adjusted by the adjusting component; it also includes a clamping component, and the clamping component is located on the winding roller 6, and one end of the plastic film can be fixed by the clamping component. The plastic film passes under the second guide roller 9, passes over the third guide roller 10, and passes to the bottom of the fourth guide roller 11, and is wound on the winding roller 6. The adjusting component is located on the cross support frame 4, through which the height of the third guide roller 10 on the cross support frame 4 can be adjusted. At the same time, it also includes a clamping component, which is located on the winding roller 6, through which one end of the plastic film can be fixed.

[0028] Reference Figure 2 The adjustment assembly includes an electric push rod 13 fixedly connected to the cross support frame 4. U-shaped frames 12 are rotatably mounted on the rotating shafts at both ends of the third guide roller 10. The top end of the output shaft of the electric push rod 13 is fixedly connected to the bottom end of the U-shaped frame 12. Two sliders 14 are slidably connected to the cross support frame 4, and the rotating shafts at both ends of the third guide roller 10 rotate through the sliders 14. The contraction of the output shaft of the electric push rod 13 drives the U-shaped frame 12 to adjust the third guide roller 10 up and down. The third guide roller 10 slides within the cross support frame 4 via the sliders 14, thereby adjusting the tightness of the plastic film winding.

[0029] Reference Figure 3 The clamping assembly includes two rotating shafts 18 rotatably connected to the winding roller 6. The sides of the two rotating shafts 18 that are close to each other are fixedly connected to the same clamping plate 17. Both ends of the clamping plate 17 are fixedly connected to the torsion springs 15, and the torsion springs 15 are sleeved on the outer walls of the rotating shafts 18. The sides of the two torsion springs 15 that are away from each other are fixedly connected to the winding roller 6. The winding roller 6 is provided with a clamping groove 16, and the clamping plate 17 is located in the clamping groove 16. The clamping plate 17 is flipped by the rotating shaft 18. One end of the plastic film is placed under the clamping plate 17. The pressure on the clamping plate 17 is released, and the torsion spring 15 causes the clamping plate 17 to cooperate with the clamping groove 16 to clamp and fix the end of the plastic film.

[0030] Reference Figure 3 , one end of the clamping plate 17 is provided with a pressing plate 19. The pressing plate 19 is located at one end of the clamping plate 17 and is convenient for pressing the clamping plate 17.

[0031] Reference Figure 1The top of the base 1 is rotatably connected to a first guide roller 8 via a support frame, and the first guide roller 8 and the second guide roller 9 are aligned. Two first support frames 3 are fixedly mounted on the top of the base 1, with an unwinding roller 7 disposed between the two first support frames 3. The top of the first support frames 3 is provided with an opening, and the unwinding roller 7 is placed in the opening of the first support frames 3 via the rotating shafts at both ends. The unwinding roller 7 is placed in the opening at the top of the first support frames 3 for easy disassembly. At the same time, the plastic film is guided sequentially by the first guide roller 8 and the second guide roller 9.

[0032] The present application can be used in the field of plastic films, and can also be used in other fields applicable to the present application.

[0033] Example 2

[0034] refer to Figure 1 Based on the first embodiment, a double-sided printing device is improved and applied to the field of plastic films. A printing machine 2 is fixedly mounted on the top of the base 1 and is located between a first guide roller 8 and a second guide roller 9. The plastic film is ensured to pass through the printing machine 2 horizontally.

[0035] However, as is well known to those skilled in the art, the working principle and wiring method of the electric push rod 13 are commonplace, and are conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selection according to their needs or convenience.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Plastic film double-sided printing device, characterized in that, include: A base (1), a cross support frame (4) is fixedly installed on the top of the base (1), a second guide roller (9) is rotatably connected to the cross support frame (4), a third guide roller (10) is provided in the cross support frame (4), a fourth guide roller (11) is rotatably connected to the cross support frame (4), two second support frames (5) are fixedly connected to the top of the base (1), and a winding roller (6) is rotatably connected between the two second support frames (5); It also includes an adjustment component, and the adjustment component is located on the cross support frame (4), and the height of the third guide roller (10) on the cross support frame (4) can be adjusted by the adjustment component; It also includes a clamping assembly, and the clamping assembly is located on the winding roller (6), and one end of the plastic film can be fixed by the clamping assembly.

2. The double-sided printing device for plastic film according to claim 1, characterized in that: The adjustment component comprises an electric push rod (13) fixedly connected to the cross support frame (4); a U-shaped frame (12) is rotatably sleeved on the rotating shafts at both ends of the third guide roller (10); the top end of the output shaft of the electric push rod (13) and the bottom end of the U-shaped frame (12) are fixedly connected; two sliders (14) are slidably connected in the cross support frame (4); and the rotating shafts at both ends of the third guide roller (10) rotate and penetrate the sliders (14).

3. The double-sided printing device for plastic film according to claim 1, characterized in that: The clamping assembly includes two rotating shafts (18) rotatably connected to the winding roller (6), and the sides of the two rotating shafts (18) close to each other are fixedly connected to the same clamping plate (17), both ends of the clamping plate (17) are fixedly connected to torsion springs (15), and the torsion springs (15) are sleeved on the outer wall of the rotating shaft (18), and the sides of the two torsion springs (15) away from each other are fixedly connected to the winding roller (6), and the winding roller (6) is provided with a clamping groove (16), and the clamping plate (17) is located in the clamping groove (16).

4. The double-sided printing device for plastic film according to claim 3, characterized in that: A pressing plate (19) is provided at one end of the clamping plate (17).

5. The double-sided printing device for plastic film according to claim 1, characterized in that: The top of the base (1) is rotatably connected to a first guide roller (8) via a support frame, and the first guide roller (8) and the second guide roller (9) are flush; two first support frames (3) are fixedly mounted on the top of the base (1); a reeling roller (7) is provided between the two first support frames (3); an opening is provided at the top of the first support frame (3), and the reeling roller (7) is placed in the opening of the first support frame (3) via rotating shafts at both ends.

6. The double-sided printing device for plastic film according to claim 1, characterized in that: A printing machine (2) is fixedly mounted on the top of the base (1), and the printing machine (2) is located between a first guide roller (8) and a second guide roller (9).

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