CN221677372U - A special cutter for tearing line of plastic protective film - Google Patents

Abstract

The utility model discloses a special cutter for a plastic protective film tearing line, which comprises a bottom plate, wherein a distance adjusting mechanism is arranged on the bottom plate, a vertical plate is arranged on the distance adjusting mechanism, a rotary drum is rotatably connected to the vertical plate, the rotary drum is provided with two groups, a space adjusting mechanism is arranged on the rotary drum, a rolling cutting mechanism is arranged on the space adjusting mechanism, a fixing frame is rotatably connected to the vertical plate, the fixing frame is arranged above the rolling cutting mechanism, a film guiding roller is rotatably connected to the fixing frame, the space adjusting mechanism comprises a first bidirectional screw, a distance adjusting motor, a sliding ring, a supporting rod and a supporting plate, the rolling cutting mechanism comprises a tearing line cutter, a tearing line groove, a driven gear, a driving gear and a rotating motor, and the distance adjusting mechanism comprises a guide rail, a second bidirectional screw, a gearbox, a distance adjusting motor and a sliding base. The utility model belongs to the technical field of plastic film processing, and particularly relates to a special cutter for a plastic protective film tearing line.

Description

A special cutter for tearing line of plastic protective film

Technical Field

The utility model belongs to the technical field of plastic film processing, in particular to a special cutter for tearing lines of plastic protective films.

Background Art

The tear line of a plastic protective film is an imaginary line on the protective film that is not completely cut. It is convenient to use without the help of external objects to tear it open, and it does not damage the main body of the film. During processing, the tear line needs to be cut before rolling. Existing special cutters for tear lines of plastic protective films, such as the special cutter for tear lines of protective films disclosed in application number CN202220001419.9, include a knife holder and a tool. The knife holder can be raised and lowered and moved in the vertical direction. The tool is connected to the knife holder and can be elastically retracted in the vertical direction; the knife holder has a limiting pressure plate with a knife groove; the tool is provided with a blade for punching the tear line of the protective film. The elastic expansion and contraction of the tool can limit the cutting depth of the blade teeth, which can effectively avoid the problem of incompletely processing the tear line or completely cutting the protective film, thereby improving the tear line processing effect.

However, in actual processing, the plastic protective film is cut by the up and down movement of the cutter. When the cutter is fed, it is necessary to ensure that the plastic protective film and the cutter are relatively still. Therefore, the plastic protective film needs to be fed forward step by step and cannot be fed continuously, resulting in low efficiency of tear line processing. For this reason, we propose a special cutter for plastic protective film tear line to solve the above problem.

Utility Model Content

In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a special cutter for tearing lines of plastic protective film, which effectively solves the problem that the existing special cutter for tearing lines of plastic protective film requires step-feeding of plastic protective film during processing, resulting in low production efficiency and long processing cycle.

The technical solution adopted by the utility model is as follows: The utility model proposes a special cutter for tearing lines of plastic protective films, comprising a base plate, characterized in that: a distance adjusting mechanism is provided on the base plate, a vertical plate is provided on the distance adjusting mechanism, a rotating drum is rotatably connected to the vertical plate, and two groups of rotating drums are provided, an interval adjusting mechanism is provided on the rotating drum, a rolling cutting mechanism is provided on the interval adjusting mechanism, and the rolling cutting mechanism is arranged on the base plate, a fixed frame is rotatably connected to the vertical plate, and the fixed frame is arranged above the rolling cutting mechanism, and a film guide roller is rotatably connected to the fixed frame.

As an improvement of the present scheme, the interval adjustment mechanism includes a bidirectional screw 1, a pitch-adjusting motor, a sliding ring, a support rod and a support plate. The bidirectional screw 1 is rotatably connected in the rotating drum and is coaxially arranged with the rotating drum. The pitch-adjusting motor is arranged at one end of the rotating drum, and the output shaft of the pitch-adjusting motor is connected to the bidirectional screw 1. The sliding ring is slidably connected in the rotating drum and is threadedly connected to the bidirectional screw 1. One end of the support rod is rotatably connected to the sliding ring, and the other end of the support rod is arranged through the rotating drum. The support plate is rotatably connected to the support rod.

As an improvement of the present scheme, the rolling cutting mechanism includes a tear line cutter, a tear line groove, a driven gear, a driving gear and a rotating motor, the tear line cutter is arranged on a supporting plate, the tear line groove is arranged on the tear line cutter of the spacing adjustment mechanism on a side symmetrical to the tear line cutter, the driven gear is arranged on a rotating drum, the driving gear is rotatably connected to the vertical plate and meshed with the driven gear, the rotating motor is arranged on the vertical plate, and the output shaft of the rotating motor is connected to the driving gear.

As an improvement of the present scheme, the distance adjusting mechanism includes a guide rail, a second bidirectional screw, a gearbox, a distance adjusting motor and a sliding base, the guide rail is arranged on the base plate, the second bidirectional screw is rotatably connected to the guide rail, the gearbox is arranged at one end of the guide rail, the distance adjusting motor is arranged on the gearbox, the sliding base is slidably connected to the guide rail and is threadedly connected to the second bidirectional screw, and the vertical plate is vertically arranged on the sliding base.

As an improvement of the present solution, a through slot is provided on the bottom plate, and the through slot is located between the two sets of interval adjustment mechanisms. An electric push rod is rotatably connected to the vertical plate, and an output end of the electric push rod is rotatably connected to a fixing frame.

As an improvement of this solution, the support rod is arranged between the bidirectional screw rods 1 and 2, the rotating drum is vertically arranged to the vertical plate, the film guiding roller is parallel to the rotating drum, and the film guiding roller is parallel to the rotating drum.

As an improvement of the present solution, the drum is arranged in the form of a hollow cylinder, and a plurality of rectangular through holes are evenly distributed on the side wall of the drum along the circumferential direction, and the support plate is arranged in the form of an arc-shaped thin plate.

As an improvement of the present solution, the fixing frame is arranged in a U shape, and the sliding ring is arranged in an O shape.

The beneficial effects achieved by the utility model using the above structure are as follows:

1. The rolling cutting structure is adopted. Through the cooperation of the tear line cutter and the tear line groove, the tear line processing can be completed during the continuous transportation of the plastic protective film, which improves the working efficiency of the cutter;

2. Through the interval adjustment mechanism, the interval time between the tear line cutter and the tear line groove can be extended or shortened, so as to adjust the distance between adjacent tear lines, and through the adjustment of the distance adjustment mechanism, the fit between the two is ensured to achieve punching of the protective film, thereby improving the flexibility of the cutter and the processing effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of a special cutter for tearing lines of plastic protective films proposed by the utility model;

FIG2 is a cross-sectional view of a special cutter for tearing lines of plastic protective films proposed by the utility model.

Among them, 1. bottom plate, 2. distance adjustment mechanism, 3. vertical plate, 4. rotating drum, 5. interval adjustment mechanism, 6. rolling cutting mechanism, 7. fixed frame, 8. film guide roller, 9. two-way screw one, 10. distance adjustment motor, 11. sliding ring, 12. support rod, 13. support plate, 14. tear line cutter, 15. tear line groove, 16. driven gear, 17. driving gear, 18. rotating motor, 19. guide rail, 20. two-way screw two, 21. gearbox, 22. distance adjustment motor, 23. sliding base, 24. through slot, 25. electric push rod.

The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

As shown in Figures 1 and 2, the utility model proposes a special cutter for tearing lines of plastic protective films, comprising a base plate 1, a distance adjusting mechanism 2 is provided on the base plate 1, a vertical plate 3 is provided on the distance adjusting mechanism 2, a rotating drum 4 is rotatably connected to the vertical plate 3, and the rotating drum 4 is provided with two groups, an interval adjustment mechanism 5 is provided on the rotating drum 4, a rolling cutting mechanism 6 is provided on the interval adjustment mechanism 5, and the rolling cutting mechanism 6 is arranged on the base plate 1, a fixed frame 7 is rotatably connected to the vertical plate 3, and the fixed frame 7 is arranged above the rolling cutting mechanism 6, and a film guide roller 8 is rotatably connected to the fixed frame 7.

In order to adjust the processing spacing of the tear line, the interval adjustment mechanism 5 includes a bidirectional screw 9, a pitch-adjusting motor 10, a sliding ring 11, a support rod 12 and a support plate 13. The bidirectional screw 9 is rotatably connected to the rotating drum 4 and is coaxially arranged with the rotating drum 4. The pitch-adjusting motor 10 is arranged at one end of the rotating drum 4, and the output shaft of the pitch-adjusting motor 10 is connected to the bidirectional screw 9. The sliding ring 11 is slidably connected to the rotating drum 4 and is threadedly connected to the bidirectional screw 9. One end of the support rod 12 is rotatably connected to the sliding ring 11, and the other end of the support rod 12 is arranged through the rotating drum 4, and the support plate 13 is rotatably connected to the support rod 12.

In order to complete punching and improve processing efficiency during the continuous conveying of the protective film, the rolling cutting mechanism 6 includes a tear line cutter 14, a tear line groove 15, a driven gear 16, a driving gear 17 and a rotating motor 18. The tear line cutter 14 is arranged on the support plate 13, and the tear line groove 15 is arranged on the tear line cutter 14 of the spacing adjustment mechanism 5 on the side symmetrical to the tear line cutter 14. The driven gear 16 is arranged on the rotating drum 4, and the driving gear 17 is rotatably connected to the vertical plate 3 and meshed with the driven gear 16. The rotating motor 18 is arranged on the vertical plate 3, and the output shaft of the rotating motor 18 is connected to the driving gear 17.

In order to adjust the processing spacing of the tear line, the distance adjusting mechanism 2 includes a guide rail 19, a bidirectional screw 20, a gearbox 21, a distance adjusting motor 22 and a sliding base 23. The guide rail 19 is arranged on the base plate 1, the bidirectional screw 20 is rotatably connected to the guide rail 19, the gearbox 21 is arranged at one end of the guide rail 19, the distance adjusting motor 22 is arranged on the gearbox 21, the sliding base 23 is slidably connected to the guide rail 19 and is threadedly connected to the bidirectional screw 20, and the vertical plate 3 is vertically arranged on the sliding base 23.

A through groove 24 is provided on the bottom plate 1, and the through groove 24 is located in the middle of the two groups of interval adjustment mechanisms 5. An electric push rod 25 is rotatably connected to the vertical plate 3, and the output end of the electric push rod 25 is rotatably connected to the fixed frame 7; the support rod 12 is arranged between the bidirectional screw 9 and the support plate 13, the rotating drum 4 is vertically arranged with the vertical plate 3, the film guide roller 8 is parallel to the rotating drum 4, and the support plate 13 is parallel to the rotating drum 4.

The drum 4 is a hollow cylinder, and a plurality of rectangular through holes are evenly distributed on the side wall of the drum 4 along the circumferential direction. The support plate 13 is an arc-shaped thin plate. The fixing frame 7 is U-shaped, and the sliding ring 11 is O-shaped.

When in use, according to the interval requirements of tear line processing, the pitch-adjusting motor 10 is turned on to drive the bidirectional screw 1 9 to rotate, and the sliding ring 11 threadedly connected to the bidirectional screw 1 9 moves along the axis direction of the drum 4 to adjust the inclination angle of the support rod 12, thereby realizing the spacing between adjacent tear line cutters 14 on the support plate 13 until it is at the same position as the tear line spacing, and then the pitch-adjusting motor 22 is turned on to drive the bidirectional screw 2 20 to rotate through the gearbox 21, and the sliding base 23 threadedly connected to the bidirectional screw 20 drives the vertical plate 3 and the components thereon to move until the tear line cutter 14 on the support plate 13 is in the horizontal plane where the axis of the drum 4 is located. When it is positioned, it can be inserted into the tear line groove 15, turn on the electric push rod 25 to adjust the angle of the fixed frame 7, so that the film guide rollers 8 are close to each other, and the plastic film passes between the two groups of film guide rollers 8, and passes between the two groups of rotating drums 4 and finally passes through the through groove 24 to be wound on the external rewinding equipment, turn on the rotating motor 18 to drive the driving gear 17 to rotate, and the driven gear 16 meshing with the driving gear 17 drives the rotating drum 4 to rotate, so that the linear speed of the support plate 13 is consistent with the rewinding speed of the plastic protective film, so that the punching of the tear line of the plastic film can be completed during the non-stop rewinding and conveying process. The above is the use process of the special cutter for the tear line of the entire plastic protective film.

The above describes the utility model and its implementation methods, which are not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims (8)

1. The utility model provides a special cutter of plastic protection film tear line, includes bottom plate, its characterized in that: the automatic film guiding device is characterized in that a distance adjusting mechanism is arranged on the bottom plate, a vertical plate is arranged on the distance adjusting mechanism, a rotary drum is connected to the vertical plate in a rotating mode, two groups of rotary drums are arranged on the vertical plate, an interval adjusting mechanism is arranged on the rotary drum, a rolling cutting mechanism is arranged on the interval adjusting mechanism and is arranged on the bottom plate, a fixing frame is connected to the vertical plate in a rotating mode, the fixing frame is arranged above the rolling cutting mechanism, and a film guiding roller is connected to the fixing frame in a rotating mode.

2. The cutter special for a plastic protective film tearing line according to claim 1, wherein: the interval adjustment mechanism comprises a bidirectional screw rod I, a distance adjusting motor, a sliding ring, a supporting rod and a supporting plate, wherein one end of the bidirectional screw rod is rotatably connected in the rotary drum and coaxially arranged with the rotary drum, the distance adjusting motor is arranged at one end of the rotary drum, an output shaft of the distance adjusting motor is connected with the bidirectional screw rod I, the sliding ring is slidably connected in the rotary drum and is in threaded connection with the bidirectional screw rod I, one end of the supporting rod is rotatably connected onto the sliding ring, the other end of the supporting rod penetrates through the rotary drum, and the supporting plate is rotatably connected onto the supporting rod.

3. The cutter special for plastic protective film tearing lines according to claim 2, wherein: the rolling cutting mechanism comprises a tearing line cutter, a tearing line groove, a driven gear, a driving gear and a rotating motor, wherein the tearing line cutter is arranged on the supporting plate, the tearing line groove is arranged on the tearing line cutter of the interval adjusting mechanism on one side of the symmetry of the tearing line cutter, the driven gear is arranged on the rotating drum, the driving gear is rotationally connected on the vertical plate and is meshed with the driven gear, the rotating motor is arranged on the vertical plate, and an output shaft of the rotating motor is connected with the driving gear.

4. A special cutter for a plastic protective film tearing line according to claim 3, characterized in that: the adjustable distance mechanism comprises a guide rail, a second bidirectional screw rod, a gearbox, a distance adjusting motor and a sliding base, wherein the guide rail is arranged on the bottom plate, the second bidirectional screw rod is rotationally connected to the guide rail, the gearbox is arranged at one end of the guide rail, the distance adjusting motor is arranged on the gearbox, the sliding base is slidably connected to the guide rail and is in threaded connection with the second bidirectional screw rod, and the vertical plate is vertically arranged on the sliding base.

5. The cutter special for plastic protective film tearing lines according to claim 4, wherein: the bottom plate is provided with a through groove, the through groove is positioned in the middle of the two groups of interval adjusting mechanisms, the vertical plate is rotationally connected with an electric push rod, and the output end of the electric push rod is rotationally connected to the fixing frame.

6. The cutter special for plastic protective film tearing lines according to claim 5, wherein: the support rod is arranged between the two-way screw rods I and II, the rotary drum and the vertical plate are arranged vertically, the film guide roller and the rotary drum are arranged in parallel, and the film guide roller and the rotary drum are arranged in parallel.

7. The cutter special for plastic protective film tearing lines according to claim 6, wherein: the rotary drum is hollow cylinder setting, and the rotary drum lateral wall has a plurality of rectangle through-holes along circumferencial direction equipartition, the backup pad is the setting of arc sheet metal.

8. The cutter special for plastic protective film tearing lines as defined in claim 7, wherein: the fixing frame is U-shaped, and the sliding ring is O-shaped.