Protective film slitting device with blade convenient to replace

Abstract

The utility model relates to the technical field of protective film processing, in particular to a protective film slitting device convenient for replacing a blade, which comprises a bearing plate, a discharging frame, a material roller, a first material guide frame, a first material guide roller, a mounting component, a slitting component, a second material guide frame, a second material guide roller, a material receiving frame and a material receiving roller, a dismounting and mounting frame is arranged at the upper end of the inner side of the mounting frame, the slitting component comprises a dismounting and mounting plate, and an adjusting rod is arranged at one end of the lower side of the dismounting and mounting plate. The dismounting and mounting plate is clamped and fixed through the dismounting and mounting frame, screw fixing is not needed in the clamping and fixing process, the cutting component replacement convenience is improved, the cutting pressure of the blade on the protective film is automatically adjusted through stretching and retracting of the first spring and rotation of the adjusting rod on the lower side of the dismounting and mounting plate, and the blade rotates to the upper side of the protective film under the condition that the blade is blunt and not sharp; and the cut protective film is prevented from being damaged due to blade pulling.

Description

Technical Field

[0001] The utility model relates to the technical field of protective film processing, in particular to a protective film slitting device which is convenient for replacing blades. Background Art

[0002] Protective films can be divided into digital product protective films, car protective films, household protective films, and food preservation protective films according to their uses. With the popularity of digital products such as mobile phones in China, protective films have gradually become a general term for screen protective films. In the processing of protective films, protective film slitting devices are used for the slitting operation of protective films.

[0003] A Chinese patent discloses a protective film slitting device (authorization publication number CN218518779U). This patented technology allows for quick blade replacement, is very simple to operate, and can be adjusted without stopping the device, reducing downtime and improving production efficiency. However, the protective film slitting device replaces two sets of blades by rotating, which causes the blades to leak out, which is not conducive to safety. The blades also come into hard contact with the protective film, and when the blades become blunt, they pull on the protective film, causing damage to the cut protective film and a large amount of protective film loss. Therefore, those skilled in the art have provided a protective film slitting device that facilitates blade replacement to address the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a protective film slitting device with easy replacement of blades, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A protective film slitting device that is easy to replace a blade comprises a carrying plate, a discharging rack, a material roller, a first material guide rack, a first material guide roller, a mounting component, a slitting component, a second material guide rack, a second material guide roller, a material receiving rack and a material receiving roller, wherein the discharging rack is located at one end position of the upper side of the carrying plate, the material roller is located at the inner upper end position of the discharging rack, the first material guide rack is located at the upper side of the carrying plate adjacent to the discharging rack, the first material guide roller is located at the inner position of the first material guide rack, the mounting component is located at the upper side of the carrying plate adjacent to the first material guide rack, the slitting component is located at the mounting component The slitting member includes a disassembly plate, an adjusting rod, and a blade. The lower side of the adjusting rod is provided with a first spring.

[0007] As a further solution of the present invention: a first motor is installed at the position of the material roller on the front side of the discharging rack, a second motor is installed at the position of the material receiving rack on the front side corresponding to the material receiving roller, toothed plates are provided at both ends of the front side of the disassembly and assembly plate, a tooth groove is provided on the inner side of the disassembly and assembly rack, a guide slide is provided at the upper end of the mounting rack corresponding to the position of the disassembly and assembly rack, a pressure plate is provided on the lower side of the guide slide, a second spring is installed on the outer side of the guide slide at the corresponding side position of the mounting rack and the pressure plate, and a handle is provided on the upper side of the guide slide.

[0008] As a further solution of the present invention: the disassembly plate slides at the inner position of the disassembly frame, the upper end of the adjustment rod rotates at one end position of the lower side of the disassembly plate, and the upper end of the first spring is fixed at the other end position of the lower side of the disassembly plate.

[0009] As a further solution of the present invention: the material roller is rotated at the inner side of the material discharging rack by a first motor, and the material receiving roller is rotated at the inner side of the material receiving rack by a second motor.

[0010] As a further solution of the present invention: the positions of the tooth connection plate and the tooth groove correspond to each other, and the tooth connection plate is engaged with the upper side of the tooth groove.

[0011] As a further solution of the present invention: the upper end of the guide slide rod slides at the upper end position of the mounting frame, the pressure plate slides at the inner position of the disassembly frame through the guide slide rod, and the disassembly plate is fixed at the inner position of the disassembly frame through the pressure plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model provides a protective film slitting device that facilitates blade replacement. The detachable plate is fixed to the detachable frame without the need for screws, thereby improving the convenience of replacing the slitting component.

[0014] 2. Through the expansion and contraction of the first spring, the adjusting rod rotates on the lower side of the disassembly and assembly plate, automatically adjusting the cutting pressure of the blade on the protective film. When the blade becomes blunt, it rotates to the upper side of the protective film to avoid damage to the cut protective film caused by the blade pulling, thereby reducing the loss of the protective film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a protective film slitting device that is easy to replace the blade;

[0016] Figure 2 This is a schematic structural diagram of an installation component in a protective film slitting device that facilitates blade replacement;

[0017] Figure 3 A schematic structural diagram of a slitting component in a protective film slitting device that facilitates blade replacement;

[0018] Figure 4 A protective film slitting device that is easy to replace blades Figure 2 Schematic diagram of the structure of part A.

[0019] In the figure: 1. Loading plate; 2. Discharging rack; 3. Material roller; 4. First material guide rack; 5. First material guide roller; 6. Mounting member; 7. Slitting member; 8. Second material guide rack; 9. Second material guide roller; 10. Material collection rack; 11. Material collection roller; 12. Mounting rack; 13. Disassembly rack; 14. Disassembly plate; 15. Adjustment rod; 16. Blade; 17. First spring; 18. First motor; 19. Second motor; 20. Tooth plate; 21. Tooth groove; 22. Guide slide rod; 23. Pressing plate; 24. Second spring; 25. Handle. DETAILED DESCRIPTION

[0020] See also Figures 1 to 4In an embodiment of the present invention, a protective film slitting device that is convenient for replacing blades includes a carrying plate 1, a discharge rack 2, a material roller 3, a first guide rack 4, a first guide roller 5, a mounting component 6, a slitting component 7, a second guide rack 8, a second guide roller 9, a receiving rack 10 and a receiving roller 11. The discharge rack 2 is located at one end of the upper side of the carrying plate 1, the material roller 3 is located at the inner upper end of the discharge rack 2, the first guide rack 4 is located on the upper side of the carrying plate 1 adjacent to the discharge rack 2, the first guide roller 5 is located at the inner side of the first guide rack 4, the mounting component 6 is located on the upper side of the carrying plate 1 adjacent to the first guide rack 4, and the slitting component 7 is located. Located at the inner upper end position of the mounting member 6, the second guide frame 8 is located on the upper side of the carrier plate 1 near the mounting member 6, the second guide roller 9 is located at the inner side position of the second guide frame 8, the receiving frame 10 is located at the other end position of the upper side of the carrier plate 1, the receiving roller 11 is located at the inner side position of the receiving frame 10, the mounting member 6 includes a mounting frame 12, a disassembly frame 13 is provided at the inner upper end position of the mounting frame 12, the slitting member 7 includes a disassembly plate 14, an adjusting rod 15 is provided at one end position of the lower side of the disassembly plate 14, a blade 16 is provided on the lower side of the adjusting rod 15, a first spring 17 is installed on one side of the adjusting rod 15, and the disassembly plate 1 4 slides to the inner position of the disassembly and assembly frame 13, the upper end of the adjusting rod 15 rotates to the lower end position of the disassembly and assembly plate 14, and the upper end of the first spring 17 is fixed to the lower end position of the disassembly and assembly plate 14. First, a protective film slitting device that is easy to replace the blade is placed in the use position. One end of the protective film on the outer side of the material roller 3 penetrates the inner side of the first guide roller 5 and the second guide roller 9 and is fixed to the outer side of the receiving roller 11. The blade 16 cuts into the protective film. The material roller 3 rotates on the inner side of the discharge rack 2, and the receiving roller 11 rotates on the inner side of the receiving rack 10. The protective film on the outer side of the material roller 3 is wound around the outer side of the receiving roller 11 after being cut by the blade 16. During the cutting process, the first spring 17 is extended and retracted, and the upper end of the adjusting rod 15 is rotated on the lower side of the disassembly plate 14, adaptively adjusting the cutting pressure of the blade 16. When the blade 16 is no longer sharp, the cutting resistance of the blade 16 is increased, and the upper end of the adjusting rod 15 is rotated on the lower side of the disassembly plate 14. The first spring 17 is extended, and the blade 16 is pushed to the upper side of the protective film under the resistance, and the cutting operation is stopped. Then, the disassembly plate 14 is lifted by holding the adjusting rod 15, and the disassembly plate 14 slides out of the disassembly frame 13, and the new cutting component 7 is taken out. The disassembly plate 14 slides into the inner side of the disassembly frame 13, and the disassembly plate 14 is fixed to the inside of the disassembly frame 13 to complete the replacement of the cutting component 7.

[0021] exist Figure 1 、 2, 3, 4: A first motor 18 is installed at the position of the material roller 3 on the front side of the discharge rack 2, a second motor 19 is installed at the position of the material roller 11 on the front side of the receiving rack 10, a toothed plate 20 is provided at both ends of the front side of the disassembly plate 14, a tooth groove 21 is provided on the inner side of the disassembly rack 13, a guide rod 22 is provided at the upper end of the mounting rack 12 corresponding to the position of the disassembly rack 13, a pressure plate 23 is provided on the lower side of the guide rod 22, a second spring 24 is installed on the outer side of the guide rod 22 at the corresponding side position of the mounting rack 12 and the pressure plate 23, and a handle is provided on the upper side of the guide rod 22 25, the material roller 3 is rotated to the inner position of the discharge rack 2 by the first motor 18, the material receiving roller 11 is rotated to the inner position of the material receiving rack 10 by the second motor 19, the tooth plate 20 corresponds to the position of the tooth groove 21, the tooth plate 20 is engaged with the upper position of the tooth groove 21, the upper end of the guide slide 22 slides to the upper end position of the mounting frame 12, the pressure plate 23 slides to the inner position of the disassembly frame 13 through the guide slide 22, and the disassembly plate 14 is fixed to the inner position of the disassembly frame 13 by the pressure plate 23. The operation of the first motor 18 drives the material roller 3 to rotate on the inner side of the discharge rack 2, and the second motor 19 drives the receiving roller 11 to rotate on the inner side of the receiving frame 10. The protective film on the outer side of the material roller 3 is wound around the outer side of the receiving roller 11 after the cutting of the blade 16. During the cutting process, the first spring 17 is extended and contracted, and the upper end of the adjusting rod 15 is rotated on the lower side of the disassembly plate 14 to adaptively adjust the cutting pressure of the blade 16. When the blade 16 is no longer sharp, the cutting resistance of the blade 16 is large, and the upper end of the adjusting rod 15 is rotated on the lower side of the disassembly plate 14. The first spring 17 is extended, and the blade 16 is pushed to the upper side of the protective film under the resistance, and the cutting operation is stopped. Then, the handle 25 is held and the upper end of the guide rod 22 is moved. The end slides on the upper end of the mounting frame 12, the second spring 24 contracts, the pressure plate 23 leaves the disassembly plate 14, the hand-held adjusting rod 15 lifts the disassembly plate 14, the toothed plate 20 separates the tooth groove 21, the disassembly plate 14 slides out of the disassembly frame 13, and the new cutting component 7 is taken out. The disassembly plate 14 slides into the inner side of the disassembly frame 13, the handle 25 is released, the second spring 24 extends, the upper end of the guide slide rod 22 slides on the upper end of the mounting frame 12, the pressure plate 23 is pressed to the upper side of the disassembly plate 14, the toothed plate 20 is stuck to the inside of the tooth groove 21, the disassembly plate 14 is fixed to the inside of the disassembly frame 13, and the replacement of the cutting component 7 is completed.

[0022] The working principle of the present invention is as follows: first, a protective film slitting device which is convenient for replacing blades is placed in the use position, one end of the protective film on the outer side of the material roller 3 penetrates into the inner side of the first guide roller 5 and the second guide roller 9, and is fixed to the outer side of the receiving roller 11, and the blade 16 cuts into the protective film, and the first motor 18 drives the material roller 3 to rotate on the inner side of the discharge rack 2, and the second motor 19 drives the receiving roller 11 to rotate on the inner side of the receiving rack 10. The protective film on the outer side of the material roller 3 is wound around the outer side of the receiving roller 11 after being cut by the blade 16. During the slitting process, the first spring 17 is extended and retracted, and the upper end of the adjusting rod 15 rotates on the lower side of the disassembly plate 14 to adaptively adjust the slitting pressure of the blade 16. When the blade 16 is no longer sharp, the slitting resistance of the blade 16 is increased, and the upper end of the adjusting rod 15 is on the disassembly plate The lower side of 14 rotates, the first spring 17 stretches, and the blade 16 is pushed to the upper side of the protective film under resistance, stopping the slitting operation. Then, the handle 25 is held, the upper end of the guide slide rod 22 slides on the upper end of the mounting frame 12, the second spring 24 contracts, the pressure plate 23 leaves the disassembly plate 14, the hand-held adjusting rod 15 lifts the disassembly plate 14, the toothed plate 20 separates the tooth groove 21, the disassembly plate 14 slides out of the disassembly frame 13, and the new slitting component 7 is taken out. The disassembly plate 14 slides into the inner side of the disassembly frame 13, the handle 25 is released, the second spring 24 stretches, the upper end of the guide slide rod 22 slides on the upper end of the mounting frame 12, the pressure plate 23 is pressed to the upper side of the disassembly plate 14, the toothed plate 20 is stuck in the inside of the tooth groove 21, and the disassembly plate 14 is fixed to the inside of the disassembly frame 13, completing the replacement of the slitting component 7.

[0023] 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. A protective film slitting device that is easy to replace blades, comprising a supporting plate (1), a discharge rack (2), a material roller (3), a first guide rack (4), a first guide roller (5), a mounting member (6), a slitting member (7), a second guide rack (8), a second guide roller (9), a receiving rack (10) and a receiving roller (11), wherein the discharge rack (2) is located at one end of the upper side of the supporting plate (1), the material roller (3) is located at the inner upper end of the discharge rack (2), the first guide rack (4) is located at the upper side of the supporting plate (1) adjacent to the discharge rack (2), and the first guide roller ( 5) is located at the inner side of the first material guide frame (4), the mounting member (6) is located on the upper side of the carrier plate (1) adjacent to the first material guide frame (4), the slitting member (7) is located at the inner upper end of the mounting member (6), the second material guide frame (8) is located on the upper side of the carrier plate (1) adjacent to the mounting member (6), the second material guide roller (9) is located at the inner side of the second material guide frame (8), the material receiving frame (10) is located at the other end of the upper side of the carrier plate (1), and the material receiving roller (11) is located at the inner side of the material receiving frame (10), characterized in that, The mounting member (6) comprises a mounting frame (12), a disassembly frame (13) is provided at the inner upper end of the mounting frame (12), the slitting member (7) comprises a disassembly plate (14), an adjustment rod (15) is provided at one end of the lower side of the disassembly plate (14), a blade (16) is provided at the lower side of the adjustment rod (15), and a first spring (17) is installed on one side of the adjustment rod (15).

2. A protective film slitting device with easy blade replacement according to claim 1, characterized in that: A first motor (18) is installed at the position of the material roller (3) on the front side of the discharging frame (2), a second motor (19) is installed at the position of the material receiving frame (10) on the front side corresponding to the material receiving roller (11), tooth plates (20) are provided at both ends of the front side of the disassembly and assembly plate (14), a tooth groove (21) is provided on the inner side of the disassembly and assembly frame (13), a guide rod (22) is provided at the upper end of the mounting frame (12) corresponding to the position of the disassembly and assembly frame (13), a pressure plate (23) is provided on the lower side of the guide rod (22), a second spring (24) is installed on the outer side of the guide rod (22) at the corresponding side position of the mounting frame (12) and the pressure plate (23), and a handle (25) is provided on the upper side of the guide rod (22).

3. The protective film slitting device with easy blade replacement according to claim 1, characterized in that: The disassembly plate (14) slides at the inner side position of the disassembly frame (13), the upper end of the adjustment rod (15) rotates at the lower end position of the disassembly plate (14), and the upper end of the first spring (17) is fixed at the lower end position of the disassembly plate (14).

4. The protective film slitting device with easy blade replacement according to claim 2, characterized in that: The material roller (3) is rotated at an inner position of the material discharging rack (2) by a first motor (18), and the material receiving roller (11) is rotated at an inner position of the material receiving rack (10) by a second motor (19).

5. The protective film slitting device with easy blade replacement according to claim 2, characterized in that: The positions of the tooth connection plate (20) and the tooth groove (21) correspond, and the tooth connection plate (20) is engaged at the upper side position of the tooth groove (21).

6. The protective film slitting device with easy blade replacement according to claim 2, characterized in that: The upper end of the guide slide rod (22) slides at the upper end position of the mounting frame (12), the pressing plate (23) slides at the inner position of the disassembly frame (13) through the guide slide rod (22), and the disassembly plate (14) is fixed at the inner position of the disassembly frame (13) through the pressing plate (23).

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