Film drawing and cutting mechanism

Abstract

The utility model discloses a film drawing and cutting mechanism which comprises a machine frame, a traction assembly is arranged on the machine frame in a sliding mode, a cutting assembly is further fixedly arranged on the machine frame, the traction assembly is arranged at the discharging end of the cutting assembly, the cutting assembly is provided with a guide roller set, and the cutting assembly comprises a cutter rest and a pair of guide plates. A gap is formed between the extending edges of the discharging ends of the pair of guide plates, the traction assembly penetrates through the guide plates through the gap to directly abut against and clamp a film, and the cutter frame is arranged at the discharging ends of the guide plates; the thin film cutting device can achieve flat cutting of a thin film, can automatically complete cutting and pulling actions of the thin film, can directly pull the thin film after cutting is completed, does not need to do an additional lifting action on the edge of the thin film after cutting is completed, can improve the operation efficiency of machine equipment, can place a winding drum of the thin film on the equipment, and is simple in structure and convenient to use. And a guide roll shaft is further arranged for free rotation, so that smooth feeding of the thin film is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field related to film production equipment, in particular to a film drawing and cutting mechanism. Background Art

[0002] Some film production companies usually need a film cutting and pulling mechanism. The film is thin, soft and easy to deform, or its tension and support are relatively small. It is easy to cut. It requires manual labor or equipment to lift the edge of the film upwards before proceeding to the next step of pulling and cutting.

[0003] An existing film preparation and transportation device, patent number CN202322783338.6, is a film preparation and transportation device, which includes a cutting table and several cutters arranged below the cutting table, as well as a film pulling splint and a film transport mechanism arranged above the cutting table. The cutter cuts the film into film sheets through the gap on the cutting table; the film pulling splint includes an upper splint and a lower splint aligned up and down, and the upper splint and the lower splint both have a first comb tooth structure. One end of the cutting table is provided with a accommodating area for the first comb tooth structure of the lower splint, and the shape of the accommodating area is adapted to the shape of the first comb tooth structure.

[0004] It solves the problem of smooth cutting and requires a device that can solve the problem of still needing to pull the film to extend the edge after cutting. Utility Model Content

[0005] The purpose of the utility model is to provide a film-drawing and cutting mechanism to overcome the deficiencies in the prior art.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A film pulling and cutting mechanism includes a frame, a pulling assembly is slidably provided on the frame, and a cutting assembly is fixedly provided on the frame. The pulling assembly is installed at the discharge end of the cutting assembly, and the cutting assembly is provided with a guide roller group. The cutting assembly includes a cutting frame and a pair of guide plates. A gap is provided along the discharge end of the pair of guide plates. The pulling assembly passes through the gap and penetrates the guide plates to directly contact and clamp the film. The cutting frame is provided at the discharge end of the guide plates.

[0008] To further elaborate, the gap is a comb-tooth-shaped extension formed by the inward depression of the discharge end of the guide plate.

[0009] To further elaborate, a pair of guide plates are arranged in an aligned and overlapping manner.

[0010] To further explain, the cutting knife holder includes an upper knife holder and a lower knife holder, the top of the lower knife holder is elastically connected with a pad, the middle of the upper knife holder is provided with a blade groove, the bottom of the upper knife holder and the pad are provided with a tooth-shaped extension that is staggered with the comb-shaped extension, and the upper knife holder and the pad are both used to pass through the tooth-shaped extension through the guide plate and press-fit with the film.

[0011] To further explain, a cutter is fixedly installed in the lower blade holder, the position of the cutter corresponds to the position of the blade slot, the pad is provided with a through slot, the position and size of the through slot correspond to the blade slot, the pad is movably connected to the lower blade holder through a spring group, and the cutter extends upward.

[0012] To further elaborate, the cutter passes through the through slot, penetrates the pad, cuts the film, and then extends into the blade slot, which is used to accommodate the cutter.

[0013] To further illustrate, the pulling assembly includes a plurality of film clamping cylinders, which are used to penetrate the guide plate through the gap to directly contact and clamp the film.

[0014] To further explain, the pulling assembly also includes a membrane cylinder support plate and a module connecting plate. A screw rod double guide rail linear module is installed in the frame. The output end of the double guide rail linear module is fixedly connected to the module connecting plate. The pulling assembly is slidably connected to the frame through the screw rod double guide rail linear module.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model can solve the problem of smooth cutting of film, can automatically complete the cutting and pulling of film, can directly pull after cutting is completed, and does not need to perform an additional lifting action on the edge of the film after cutting is completed, can improve the efficiency of machine operation, the roll of film can be placed on the equipment and rotated freely, and is also provided with a guide roller to ensure smooth feeding of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model ignoring part of the frame and cover;

[0018] Figure 2 This is a partial enlarged view of the utility model ignoring part of the frame and the cover;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model.

[0020] Description of the accompanying drawings:

[0021] 1. Frame; 2. Guide plate; 3. Lower tool holder; 4. Upper tool holder; 5. Through slot; 6. Blade slot; 7. Cutter; 8. Spacer; 9. Spring; 10. Lead screw double guide rail linear module; 11. Cylinder support plate for film clamping; 12. Module connecting plate; 13. Cylinder for film clamping; 14. Guide roller group; 15. Driven roller. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered thereon. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may also be an element centered thereon. When the number of an element is referred to as having "plurality", it may be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings:

[0026] like Figure 1-3As shown, in this embodiment, a film-drawing and cutting mechanism is provided, comprising a frame 1, on which a pulling assembly is slidably mounted. A cutting assembly is also fixedly mounted on the frame 1. The pulling assembly is mounted at the discharge end of the cutting assembly. The cutting assembly is provided with a guide roller assembly 14. The cutting assembly includes a cutter frame and a pair of guide plates 2. A gap is provided along the discharge end of the pair of guide plates 2. The pulling assembly passes through the gap and directly contacts and clamps the film. The cutter frame is located at the discharge end of the guide plates 2. The guide roller assembly 14 pulls, guides, and smoothes the film. A pair of auxiliary driven rollers 15 are positioned on the frame 1. Because the film is in a rolled-up tube, the driven rollers 15 not only rotate in response to the pulling of the film but also limit the position of the roll. The guide roller assembly 14 assists in feeding the film, while the cutter frame presses and cuts the film once it has been moved into position, and the pulling assembly pulls and moves the film.

[0027] In this embodiment, the gap is formed by the inwardly recessed comb-like edge of the discharge end of the guide plate 2, resulting in evenly spaced comb holes. To ensure efficient and effective subsequent cutting and pulling without interference, the pair of guide plates 2 are aligned and overlapped. Specifically, the positions of the upper and lower guide plates 2 and the comb teeth are aligned and overlapped. This allows the guide plates 2 to remain horizontal during film feeding and, after cutting, to maintain their ends horizontally, providing support for subsequent repeated film pulling and cutting. This allows the film to be pulled out without the need for tail lifting. This is because the pulling assembly includes multiple film clamping cylinders 13, which penetrate the guide plates 2 through the gap to directly contact and clamp the film. The film clamping cylinders 13 use finger grippers, with the gap between their caps smaller than the aforementioned comb tooth gaps. Therefore, the film clamping cylinders 13 are positioned so that the finger grippers are positioned within the comb tooth gaps during clamping and pulling.

[0028] In this embodiment, a driving member is provided on the frame 1 to control one of the guide plates 2 (located at the top) to move relative to the frame 1, and the other guide plate 2 (specifically located at the bottom) is fixedly connected to the frame 1. The driving member is specifically a cylinder, which can control the guide plate 2 located at the top to move downward by lifting.

[0029] In this embodiment, the cutting knife frame includes an upper knife frame 4 and a lower knife frame 3. A driving part is also provided on the frame 1, specifically a motor and a screw rod. The screw rod is threadedly connected to the upper knife frame 4 and the lower knife frame 3 respectively. When the motor rotates, it will control the movement of the upper knife frame 4 and the lower knife frame 3. In this embodiment, the rotation of the motor is mainly to control the approach and separation of the upper knife frame 4 and the lower knife frame 3, so that the film cutting by the cutter 7 (mentioned below) can be realized.

[0030] In this embodiment, a cushion block 8 is elastically connected to the top of the lower blade holder 3 to cushion the vibrations during the movement of the lower blade holder 3. A blade slot 6 is provided in the middle of the upper blade holder 4. The bottom of the upper blade holder 4 and the cushion block 8 are both provided with toothed edges that are offset from the comb-shaped edges. The upper blade holder 4 and the cushion block 8 are both used to pass through the toothed edges through the guide plate 2 and press-fit the film. Because the comb teeth provided on the bottom of the upper blade holder 4 and the cushion block 8 are offset, the upper blade holder 4 and the cushion block 8 can overlap the guide plate 2 perfectly when clamping the film.

[0031] To further elaborate, a cutter 7 is fixedly installed in the lower blade holder 3. The position of the cutter 7 corresponds to the position of the blade slot 6. The spacer 8 is provided with a through slot 5. The position and size of the through slot 5 correspond to the blade slot 6. The spacer 8 is movably connected to the lower blade holder 3 through a spring 9 group, and the cutter 7 extends upward. As the motor is driven, the gap between the upper and lower blade holders 3 gradually decreases, and the spring 9 set between the spacer 8 and the lower blade holder 3 will also be compressed. The cutter 7 will pass through the through slot 5 through the spacer 8 to press the film. Then, the cutter 7 will continue to move upward until it extends into the blade slot 6. After the cutter 7 passes through the through slot 5 and penetrates the spacer 8 to cut the film, it extends into the blade slot 6. The blade slot 6 is used to accommodate the cutter 7.

[0032] In this embodiment, the pulling assembly further includes a film-clamping cylinder support plate 11 and a module connecting plate 12. A screw-rod dual-guide linear module 10 is mounted within the frame 1. The output end of the dual-guide linear module is fixedly connected to the module connecting plate 12. The pulling assembly is slidably connected to the frame 1 via the screw-rod dual-guide linear module 10. Specifically, there are multiple film-clamping cylinders 13, preferably four. These four film-clamping cylinders 13 are evenly spaced on the film-clamping cylinder support plate 11. The dual-guide linear module controls the movement of these four film-clamping cylinders 13.

[0033] Before and after cutting the film, the two guide plates 2 are in a closed state. After the cutter 7 completes the cutting, the upper and lower tool holders 3 are opened, and then the double-guide linear module controls the film clamping cylinder 13 to move to move the film.

[0034] Specifically, in order to further improve the reliability of the pad, a guide rod is fixed at the bottom of the pad, and this guide rod is inserted into the lower tool holder 3. The lower tool holder 3 is provided with a guide hole whose depth is larger than the guide rod. The spring 9 abuts against the bottom of the guide hole and also abuts against the bottom of the pad 8. This spring 9 is sleeved on the guide rod, so it can provide buffering while not deviating from the basic position.

[0035] The technical features of the above-described embodiments can be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there are no contradictions in the combination of these technical features, they should be considered to be within the scope of this specification. For those skilled in the art, without departing from the concept of the utility model, they can also make several variations and improvements, which fall within the scope of protection of the utility model. Therefore, the scope of protection of this utility model patent shall be based on the appended claims.

Claims

1. A film-drawing and cutting mechanism, comprising a frame, characterized in that: A pulling assembly is slidably mounted on the frame, and a cutting assembly is also fixedly mounted on the frame. The pulling assembly is installed at the discharge end of the cutting assembly. The cutting assembly is provided with a guide roller group. The cutting assembly includes a cutting frame and a pair of guide plates. A gap is provided along the discharge end of the pair of guide plates. The pulling assembly passes through the gap and penetrates the guide plates to directly contact and clamp the film. The cutting frame is provided at the discharge end of the guide plates.

2. A film-drawing and cutting mechanism according to claim 1, characterized in that: The gap is a comb-shaped extension formed by the inward depression of the discharge end of the guide plate.

3. The film-drawing and cutting mechanism according to claim 1, characterized in that: A pair of guide plates are arranged in alignment and overlap.

4. A film-drawing and cutting mechanism according to claim 2, characterized in that: The cutting knife holder includes an upper knife holder and a lower knife holder. The top of the lower knife holder is elastically connected with a pad. The middle of the upper knife holder is provided with a blade groove. The bottom of the upper knife holder and the pad are both provided with tooth-shaped extensions that are staggered with the comb-shaped extensions. The upper knife holder and the pad are both used to pass through the tooth-shaped extensions through the guide plate and press-fit with the film.

5. The film-drawing and cutting mechanism according to claim 4, characterized in that: A cutter is also fixedly arranged in the lower knife holder, and the position of the cutter corresponds to the position of the blade slot. The pad is provided with a through slot, and the position and size of the through slot correspond to the blade slot. The pad is movably connected to the lower knife holder through a spring assembly, and the cutter extends upward.

6. The film-drawing and cutting mechanism according to claim 5, characterized in that: The cutter passes through the through slot and penetrates the pad to cut the film and then extends into the blade slot, which is used to accommodate the cutter.

7. The film-drawing and cutting mechanism according to claim 1, characterized in that: The pulling assembly includes a plurality of film clamping cylinders, which are used to penetrate the guide plate through the gap to directly abut and clamp the film.

8. The film-drawing and cutting mechanism according to claim 7, characterized in that: The pulling assembly also includes a film cylinder support plate and a module connecting plate. A screw rod double guide rail linear module is installed in the frame. The output end of the double guide rail linear module is fixedly connected to the module connecting plate. The pulling assembly is slidably connected to the frame through the screw rod double guide rail linear module.

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