Automatic film cutting mechanism for BOPP film

Abstract

The utility model provides a kind of BOPP film automatic cutting mechanism, it is related to mechanical engineering and automatic control technical field, including shell, the screw rod is rotatably connected in shell inner wall, two sliders are symmetrically connected in screw rod outer wall, the outer wall of slider is slidably connected on the inner wall of shell, the outer wall of clamping plate is fixedly connected in the top end of slider, the outer wall of clamping plate is slidably connected on the outer wall of shell, the inner wall of clamping plate is slidably connected with cover plate, the outer wall of cover plate is fixedly connected with spring strip, the inner wall of spring strip is fixedly connected on the inner wall of clamping plate.The utility model, using screw rod and clamping plate and other structures, different sizes of film can be well guided and clamped, so that the film does not occur positional deviation in the process of cutting, so that the film after cutting can present ideal effect more, so that the practicability of device is stronger.

Description

Technical Field

[0001] This utility model relates to the fields of mechanical engineering and automatic control technology, and in particular to an automatic BOPP film cutting mechanism. Background Technology

[0002] BOPP film, or biaxially oriented polypropylene film, is widely used in the food, pharmaceutical, and chemical industries due to its high transparency and gloss, non-toxicity, stable molecular structure, and ability to isolate odors and moisture. It is often referred to as the "Queen of Packaging." The increasing demand has led to a continuous rise in BOPP film production, placing higher demands on the film-cutting process. This necessitates efficient and precise automated film-cutting mechanisms to improve production efficiency and product quality.

[0003] Most existing automatic BOPP film cutting mechanisms suffer from film positional shifts during the cutting process, leading to changes in the cut dimensions and affecting cutting accuracy, thus reducing the practicality of the device. Utility Model Content

[0004] The purpose of this invention is to solve the problem that most existing automatic BOPP film cutting mechanisms suffer from film position shift during the cutting process, which leads to changes in the cut size and affects the cutting accuracy, thus making the device less practical. Therefore, this invention proposes an automatic BOPP film cutting mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic BOPP film cutting mechanism, comprising a housing, a threaded rod rotatably connected to the inner wall of the housing, two sliders symmetrically threaded to the outer wall of the threaded rod, the outer walls of the sliders slidably connected to the inner wall of the housing, a clamping plate fixedly connected to the outer wall of the top of the slider, the outer wall of the clamping plate slidably connected to the outer wall of the housing, a cover plate slidably connected to the inner wall of the clamping plate, a spring strip fixedly connected to the outer wall of the cover plate, and the outer wall of the spring strip fixedly connected to the inner wall of the clamping plate.

[0006] Preferably, the outer wall of the threaded rod is symmetrically provided with threads in opposite directions, and a knob is fixedly connected to the outer wall of one end of the threaded rod.

[0007] Preferably, a movable block is slidably connected to the outer wall of the outer shell, a connecting rod is fixedly connected to the outer wall of the top of the movable block, and an electric push rod is fixedly connected to the inner wall of the connecting rod.

[0008] Preferably, a film-cutting blade is fixedly connected to the outer wall of the bottom end of the electric push rod, the outer wall of the film-cutting blade is slidably connected to the outer wall of the connecting rod, and the outer wall of the connecting rod is provided with a groove for the film-cutting blade to slide.

[0009] Preferably, a motor is fixedly connected to the inner wall of the moving block, a drive rod is fixedly connected to the drive end of the motor, and the outer wall of the drive rod is rotatably connected to the inner wall of the moving block.

[0010] Preferably, a gear is fixedly connected to the outer wall of the drive rod, a rack is meshed with the outer wall of the gear, and the outer wall of the rack is fixedly connected to the inner wall of the outer casing.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, a structure such as a threaded rod and a clamping plate is adopted, which can guide and clamp films of different sizes very well, so that the film will not shift in position during the cutting process, thus making the cut film present a more ideal effect and making the device more practical.

[0012] 2. In this utility model, an electric push rod and a film cutting knife structure are adopted. The electric push rod drives the film cutting knife to cut the film, which not only realizes the full automation of the device, but also the cutting effect is better than manual cutting. In addition, a motor and gear rack structure are added, so that the position of the film cutting knife can be adjusted and the adjustment accuracy is more precise, so that the size of the film cut is more in line with the requirements, thus making the device more applicable. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of an automatic BOPP film cutting mechanism is provided for this utility model; Figure 2 This utility model provides a schematic diagram of the clamping structure of an automatic BOPP film cutting mechanism; Figure 3 This utility model provides a schematic diagram of the limiting structure of an automatic BOPP film cutting mechanism; Figure 4 A schematic diagram of the transmission structure of an automatic BOPP film cutting mechanism is provided for this utility model; Figure 5 A cross-sectional view of the connecting rod of an automatic BOPP film cutting mechanism is provided for this utility model.

[0014] Legend: 1. Outer shell; 2. Threaded rod; 201. Knob; 3. Slider; 4. Clamping plate; 401. Spring strip; 5. Cover plate; 6. Moving block; 7. Connecting rod; 701. Electric push rod; 8. Film cutter; 9. Motor; 10. Drive rod; 11. Gear; 12. Rack. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Example 1: As Figures 1-5 As shown, this utility model provides a technical solution: an automatic BOPP film cutting mechanism, including a housing 1, a threaded rod 2 rotatably connected to the inner wall of the housing 1, two sliders 3 symmetrically threaded to the outer wall of the threaded rod 2, the outer wall of the sliders 3 slidably connected to the inner wall of the housing 1, a clamping plate 4 fixedly connected to the top outer wall of the sliders 3, the outer wall of the clamping plate 4 slidably connected to the outer wall of the housing 1, a cover plate 5 slidably connected to the inner wall of the clamping plate 4, a spring strip 401 fixedly connected to the outer wall of the cover plate 5, the outer wall of the spring strip 401 fixedly connected to the inner wall of the clamping plate 4, the threaded rod 2 symmetrically provided with threads in opposite directions on the outer wall, and a knob 201 fixedly connected to the outer wall of one end of the threaded rod 2.

[0018] In this embodiment, the film is first placed at a suitable position on the top of the outer shell 1. Then, the cover plate 5 is slid upward along the inner wall of the two clamping plates 4. At this time, the spring strip 401 is in a stretched state. Then, the knob 201 is turned. The rotation of the knob 201 drives the threaded rod 2 to rotate on the inner wall of the outer shell 1. The rotation of the threaded rod 2 drives the two sliders 3 to move in opposite directions along the inner wall of the outer shell 1. The movement of the sliders 3 drives the two clamping plates 4 to move in opposite directions along the outer wall of the outer shell 1. When the two clamping plates 4 are attached to both sides of the film, the two cover plates 5 are released. Under the action of the spring strip 401, the cover plates 5 will press against the top of the film to fix the film. This part mainly introduces the working principle of the clamping structure. The use of threaded rods and clamping plates can provide good guidance and clamping for films of different sizes, so that the film will not shift position during the cutting process, thus making the cut film present a more ideal effect and making the device more practical.

[0019] Example 2: As Figures 1-5As shown, a movable block 6 is slidably connected to the outer wall of the outer shell 1. A connecting rod 7 is fixedly connected to the outer wall of the top of the movable block 6. An electric push rod 701 is fixedly connected to the inner wall of the connecting rod 7. A film cutter 8 is fixedly connected to the outer wall of the bottom of the electric push rod 701. The outer wall of the film cutter 8 is slidably connected to the outer wall of the connecting rod 7. A groove for the film cutter 8 to slide is opened on the outer wall of the connecting rod 7. A motor 9 is fixedly connected to the inner wall of the movable block 6. A drive rod 10 is fixedly connected to the drive end of the motor 9. The outer wall of the drive rod 10 is rotatably connected to the inner wall of the movable block 6. A gear 11 is fixedly connected to the outer wall of the drive rod 10. A rack 12 is meshed with the outer wall of the gear 11. The outer wall of the rack 12 is fixedly connected to the inner wall of the outer shell 1.

[0020] In this embodiment, motor 9 is first started. The drive end of motor 9 rotates, thereby driving drive rod 10 to rotate along the inner wall of moving block 6. The rotation of drive rod 10 drives gear 11 to rotate. At the same time, under the action of rack 12, moving block 6 is driven to slide along the inner wall of outer shell 1. When moving block 6 slides to the appropriate position, motor 9 is turned off. Then, electric push rod 701 is started. Electric push rod 701 moves, thereby driving film cutter 8 to slide along the outer wall of connecting rod 7 to cut the film. This part mainly introduces the working principle of adjustment and cutting structure. Using electric push rod and film cutter structure, the electric push rod drives film cutter to cut film, which not only realizes the full automation of the device, but also the cutting effect is better than manual cutting. Secondly, the addition of motor and gear rack structure makes the position of film cutter adjustable and the adjustment accuracy more precise, so that the size of the cut film is more in line with the requirements, thus making the device more applicable.

[0021] The working principle of this embodiment is as follows: First, place the film at a suitable position at the top of the outer shell 1. Then, slide the cover plate 5 upward along the inner wall of the two clamping plates 4. At this time, the spring strip 401 is in a stretched state. Then, rotate the knob 201. The rotation of the knob 201 drives the threaded rod 2 to rotate on the inner wall of the outer shell 1. The rotation of the threaded rod 2 drives the two sliders 3 to move in opposite directions along the inner wall of the outer shell 1. The movement of the sliders 3 drives the two clamping plates 4 to move in opposite directions along the outer wall of the outer shell 1. When the two clamping plates 4 are attached to both sides of the film, release the two cover plates 5. Under the action of spring strip 401, cover plate 5 presses against the top of film to fix the film. Then, motor 9 is started. The drive end of motor 9 rotates, thereby driving drive rod 10 to rotate along the inner wall of moving block 6. The rotation of drive rod 10 drives gear 11 to rotate. At the same time, under the action of rack 12, moving block 6 is driven to slide along the inner wall of outer shell 1. When moving block 6 slides to the appropriate position, motor 9 is turned off. Then, electric push rod 701 is started. Electric push rod 701 moves, thereby driving film cutter 8 to slide along the outer wall of connecting rod 7 to cut the film.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automatic BOPP film cutting mechanism, comprising a housing (1), characterized in that: The inner wall of the outer shell (1) is rotatably connected to a threaded rod (2). The outer wall of the threaded rod (2) is symmetrically connected to two sliders (3). The outer wall of the sliders (3) is slidably connected to the inner wall of the outer shell (1). The outer wall of the top of the sliders (3) is fixedly connected to a clamping plate (4). The outer wall of the clamping plate (4) is slidably connected to the outer wall of the outer shell (1). The inner wall of the clamping plate (4) is slidably connected to a cover plate (5). The outer wall of the cover plate (5) is fixedly connected to a spring strip (401). The outer wall of the spring strip (401) is fixedly connected to the inner wall of the clamping plate (4).

2. The automatic BOPP film cutting mechanism according to claim 1, characterized in that: The outer wall of the threaded rod (2) is symmetrically provided with threads in opposite directions, and a knob (201) is fixedly connected to the outer wall of one end of the threaded rod (2).

3. The automatic BOPP film cutting mechanism according to claim 2, characterized in that: The outer wall of the outer shell (1) is slidably connected to a movable block (6), the top outer wall of the movable block (6) is fixedly connected to a connecting rod (7), and the inner wall of the connecting rod (7) is fixedly connected to an electric push rod (701).

4. The automatic BOPP film cutting mechanism according to claim 3, characterized in that: The electric push rod (701) has a film cutting knife (8) fixedly connected to the outer wall of its bottom end. The outer wall of the film cutting knife (8) is slidably connected to the outer wall of the connecting rod (7). The outer wall of the connecting rod (7) has a groove for the film cutting knife (8) to slide.

5. The automatic BOPP film cutting mechanism according to claim 4, characterized in that: A motor (9) is fixedly connected to the inner wall of the moving block (6), and a drive rod (10) is fixedly connected to the drive end of the motor (9). The outer wall of the drive rod (10) is rotatably connected to the inner wall of the moving block (6).

6. The automatic BOPP film cutting mechanism according to claim 5, characterized in that: A gear (11) is fixedly connected to the outer wall of the drive rod (10), and a rack (12) is meshed with the outer wall of the gear (11). The outer wall of the rack (12) is fixedly connected to the inner wall of the outer shell (1).

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