Anti-interference metallized polypropylene film cutting device

Abstract

The utility model provides an anti-interference metalized polypropylene film cutting device. The anti-interference metalized polypropylene film cutting device comprises a support, a cutting machine arranged at the upper end of the support, a supporting plate arranged on one side of the support, two sets of tensioning rollers arranged on the inner side of the support, an unwinding roller arranged on the inner side of the support, and a winding roller arranged at the upper end of the supporting plate. According to the anti-interference metallized polypropylene film cutting device, the electromagnetic shielding layer, the static electricity removing set and other structures are arranged, the electromagnetic shielding layer adopts a high-conductivity metal net, external electromagnetic interference is effectively counteracted, the film performance is guaranteed, the product quality and the equipment stability are improved, static electricity removing wind bars in the static electricity removing set ionize air to remove static electricity, installation is stable, and the anti-interference effect is good. Static electricity can be eliminated in time, damage to a film is avoided, cutting precision and production safety are improved, the positioning rollers are coated with rubber, the positioning rollers are matched with springs and the like to achieve automatic deviation correction, waste is reduced, impact is buffered, the service life is prolonged, labor intensity is reduced, the positioning rollers are matched with baffles to prevent side slipping of the film, and the practicability and automation degree of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of film cutting technology, and more specifically, to an anti-interference metallized polypropylene film cutting device. Background Technology

[0002] Metallized polypropylene films are widely used in many fields such as electronics and power, such as as a key dielectric material in capacitor manufacturing. With the development of technology and the expansion of application scenarios, the requirements for their performance and processing precision are becoming increasingly stringent.

[0003] Cutting is a crucial step in the production and processing of metallized polypropylene film. Traditional cutting equipment faces numerous challenges during operation. On the one hand, the film is susceptible to interference from external electromagnetic fields. In modern production workshops, various electrical equipment are densely packed, and the resulting complex electromagnetic fields can affect the microstructure and electrical properties of metallized polypropylene film, causing a decline in key indicators such as capacitance stability and insulation, which seriously affects product quality and reliability.

[0004] On the other hand, static electricity is easily generated during film transport and cutting due to friction with equipment components. Static electricity not only attracts dust and impurities, contaminating the film surface and affecting its appearance and subsequent use, but it can also cause problems such as film sticking and shifting during cutting, significantly reducing cutting accuracy and resulting in material waste. Furthermore, the accumulation of static electricity poses a safety hazard, potentially leading to fires. In addition, the lack of effective correction and protection measures during film winding makes the film prone to shifting, affecting winding quality and reducing production efficiency.

[0005] This invention makes the cutting device more stable during use and effectively improves the cutting quality. Utility Model Content

[0006] The present invention aims to solve the technical problems mentioned in the background art and provide an anti-interference metallized polypropylene film cutting device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an anti-interference metallized polypropylene film cutting device, comprising: a support frame, a cutting machine provided at the upper end of the support frame, a support plate provided on one side of the support frame, two sets of tension rollers provided on the inner side of the support frame, an unwinding roller provided on the inner side of the support frame, and a take-up roller provided at the upper end of the support plate.

[0008] A pad is provided on the inner side of the bracket, the two sets of tension rollers are located on both sides of the pad, an electromagnetic shielding layer is provided below the pad, a cutting plate is provided on the side of the cutting machine, an anti-static group is provided at the bottom of the cutting plate, and a support frame is provided at the bottom of the support plate.

[0009] A further preferred embodiment: each of the two sets of tensioning rollers includes two rotating rollers, the outer surfaces of the two rotating rollers are made of rubber, and the unwinding roller is located below one of the sets of tensioning rollers.

[0010] A further preferred embodiment: the electromagnetic shielding layer is a metal mesh, which is generally made of highly conductive copper mesh or stainless steel mesh.

[0011] A further preferred embodiment: the static eliminator assembly includes a static eliminator fan bar, two clamps and two fixing blocks, the two clamps are respectively installed at both ends of the static eliminator fan bar, and the two clamps are installed on the upper ends of the two fixing blocks by bolts.

[0012] A further preferred embodiment: the two fixing blocks are installed on both sides inside the bracket.

[0013] A further preferred embodiment: limit blocks are fixedly installed at both ends of the support plate, the take-up roller is installed inside the limit blocks, and the take-up roller and the limit blocks are movably connected.

[0014] A further preferred embodiment: each of the limiting blocks is fixedly mounted with a spring, each of the springs is mounted with a positioning block, the positioning block is provided with a rotating shaft, the outer surface of the rotating shaft is nested with a positioning roller, the outer surface of the positioning roller is made of rubber, and the positioning roller and the rotating shaft are rotatably connected.

[0015] A further preferred embodiment: a baffle is installed on the upper end of the support plate, the baffle is connected to the support plate by bolts, and the connection between the baffle and the support plate is detachable.

[0016] Beneficial effects:

[0017] 1. By incorporating an electromagnetic shielding layer, made of highly conductive copper or stainless steel mesh, significant benefits are achieved in the anti-interference cutting process of metallized polypropylene film. Firstly, it effectively shields against external electromagnetic interference. Metallized polypropylene film is susceptible to external electromagnetic fields during production and use. The electromagnetic shielding layer utilizes the excellent conductivity of the metal mesh to rapidly generate an induced current under the influence of an external electromagnetic field. According to the principle of electromagnetic induction, this induced current generates a reverse magnetic field, thereby counteracting the interference of the external electromagnetic field on the film. This greatly ensures the stability of the film's performance and avoids performance degradation caused by electromagnetic interference, such as damage to electrical properties. Secondly, it improves product quality and ensures the film's application performance in fields with stringent electromagnetic performance requirements, such as electronics, making it more compliant with relevant industry standards and usage needs. Furthermore, a stable electromagnetic environment also helps improve the overall stability of the cutting device, reducing equipment failures that may be caused by electromagnetic interference, extending equipment lifespan, reducing maintenance costs, and improving production efficiency and economic benefits.

[0018] 2. By incorporating an antistatic assembly, which mainly consists of an antistatic air bar, clamps, and fixing blocks, the system is easy to install and disassemble. The antistatic air bar generates a large number of positive and negative ions by ionizing the air, which can efficiently and quickly remove static electricity from the film surface. During film transport and cutting, static electricity is easily generated due to friction and other reasons. Static electricity can attract dust, affecting the cutting accuracy and electrical performance of the film, and may even cause safety accidents. The antistatic assembly can effectively neutralize the static charge on the film surface in a timely manner, preventing static electricity from damaging the film. At the same time, the clamps at both ends of the antistatic air bar are bolted to the fixing blocks, which are installed on both sides inside the bracket, ensuring that the air bar always acts stably on the film transport path and continuously exerts the antistatic effect. This not only improves the quality of the film and ensures the cutting accuracy, but also enhances the safety of the production process, reduces the risk of safety accidents such as fires caused by static electricity, and ensures the smooth operation of production.

[0019] 3. By incorporating a positioning roller with a rubber outer surface, which is rotatably connected to the rotating shaft, the system works in conjunction with a limit block, spring, and positioning block. During film winding, when the film deviates in position, it contacts the positioning roller. Due to the friction of the rubber material, the film is corrected, returning to the correct winding position, thus improving winding quality and reducing waste caused by film deviation. Simultaneously, the spring at the upper end of the limit block buffers the impact of the film on the positioning roller, allowing the positioning roller to better adapt to changes in film position and extending its service life. Furthermore, this design enables automatic film correction during winding, eliminating the need for frequent manual adjustments, reducing operator workload, and increasing production automation. The detachable baffle, in conjunction with the positioning roller, further prevents accidental side slippage of the film during winding, enhancing the equipment's practicality and operability.

[0020] 4. In summary, this anti-interference metallized polypropylene film cutting device, through the inclusion of an electromagnetic shielding layer and an antistatic assembly, effectively counteracts external electromagnetic interference, ensuring film performance, improving product quality and equipment stability. The antistatic assembly uses an antistatic air bar to ionize the air and remove static electricity, ensuring stable installation and timely elimination of static electricity to prevent damage to the film, thereby improving cutting accuracy and production safety. The positioning roller is covered with rubber and works with springs to achieve automatic correction, reducing waste, buffering impacts, extending its lifespan, and reducing labor intensity. Furthermore, it works with baffles to prevent film slippage, enhancing the equipment's practicality and automation level. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram showing the position and structure of the cutting machine and the static elimination unit of this utility model.

[0023] Figure 3 This is a schematic diagram of the static elimination assembly structure of this utility model.

[0024] Figure 4 This is a schematic diagram of the positioning roller and take-up roller structure of this utility model.

[0025] Figure 1-4 In the middle: 1. Bracket; 101. Pad; 2. Cutting machine; 201. Cutting board; 3. Support plate; 301. Support frame; 302. Limiting block; 303. Spring; 304. Positioning block; 305. Rotating shaft; 306. Positioning roller; 307. Baffle; 4. Tensioning roller; 401. Rotating roller; 5. Unwinding roller; 6. Rewinding roller; 7. Electromagnetic shielding layer; 8. Static eliminator assembly; 801. Static eliminator fan bar; 802. Chuck; 803. Fixing block. Detailed Implementation

[0026] The following will refer to the appendix in the embodiments of this utility model. Figures 1-4 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0027] Please see Figure 1-4 In this embodiment of the present invention, an anti-interference metallized polypropylene film cutting device includes: a support 1, a cutting machine 2 disposed at the upper end of the support 1, a support plate 3 disposed on one side of the support 1, two sets of tension rollers 4 disposed on the inner side of the support 1, an unwinding roller 5 disposed on the inner side of the support 1, and a take-up roller 6 disposed at the upper end of the support plate 3; a pad 101 disposed on the inner side of the support 1, the two sets of tension rollers 4 located on both sides of the pad 101, an electromagnetic shielding layer 7 disposed below the pad 101, a cutting plate 201 disposed on the side of the cutting machine 2, an anti-static group 8 disposed at the bottom of the cutting plate 201, a support frame 301 disposed at the bottom of the support plate 3, and each set of tension rollers 4 includes two rotating rollers 401, the outer surface of the two rotating rollers 401 being made of rubber, and the unwinding roller 5 being located below one of the sets of tension rollers 4;

[0028] Metallized polypropylene film is wound onto unwinding roller 5, which is located below one of the tensioning rollers 4. At the start of the cutting process, the film gradually unwinds from the unwinding roller 5 and, guided by the tensioning rollers 4, is conveyed to the subsequent processing area. Since the outer surfaces of the two rotating rollers 401 of the tensioning rollers 4 are made of rubber, the rubber material has a certain frictional force, which effectively drives the film to move while maintaining its tension, preventing slack or wrinkles during transport. The two sets of tensioning rollers 4 serve to tension and guide the film. When the film passes over the tensioning rollers 4, the pressure and friction between the two rotating rollers 401 maintain appropriate tension, ensuring smooth and uniform movement of the film during transport. The two sets of tensioning rollers 4 are located on the pad... On both sides of plate 101, pad 101 provides a stable support plane for film transmission, further ensuring the stability of film transmission. An electromagnetic shielding layer 7 is installed below pad 101. When the film is transmitted above pad 101, the electromagnetic shielding layer 7 can effectively shield against external electromagnetic interference. Metallized polypropylene film is easily affected by external electromagnetic fields during production and use, and the electromagnetic shielding layer 7 can reduce this interference, ensuring that the film's performance is not affected and improving product quality. A cutting plate 201 is installed on the side of the cutting machine 2, and an antistatic assembly 8 is installed at the bottom of the cutting plate 201. During film transmission and cutting, static electricity is easily generated on the film surface due to friction and other reasons. The antistatic assembly 8 can effectively remove static electricity from the film surface. Static electricity is used to prevent damage to the film, such as dust adsorption or affecting the cutting accuracy. Simultaneously, removing static electricity also helps improve the safety of the production process, preventing fires or other safety accidents caused by static electricity. After the film undergoes tensioning, anti-interference, and static elimination treatments, it reaches the cutting area of ​​the cutting machine 2. The cutting machine 2 cuts the film according to the set dimensions and requirements, cutting it into the required specifications. The cut film is guided by a conveying device to the winding roller 6 at the upper end of the support plate 3. Driven by a motor or other drive device, the winding roller 6 gradually winds up the cut film, completing the entire cutting and winding process. A support frame 301 is provided at the bottom of the support plate 3, providing stable support for the winding roller 6 and ensuring smooth winding. The smooth operation of the process was ensured by the effective shielding of external electromagnetic interference by the electromagnetic shielding layer 7, which maintained the stable performance of the metallized polypropylene film and prevented performance degradation caused by electromagnetic interference, thereby improving product quality. The tension roller 4 kept the film taut during transport, preventing slack and wrinkles, providing the cutting machine 2 with a flat and stable cutting surface, improving cutting accuracy, and reducing cutting errors caused by uneven film. The antistatic group 8 effectively removed static electricity from the film surface, preventing damage such as dust adsorption and impact on electrical properties. Simultaneously, eliminating static electricity improved production safety and reduced the risk of accidents caused by static electricity.The cooperation of the two sets of tension rollers 4 and the pad 101 provides stable support and guidance for film transport, ensuring the smoothness and uniformity of the film during transport. This reduces potential problems such as film deviation and slippage during transport, improving production efficiency. The layout of each component of the cutting device is reasonable. For example, the arrangement of the unwinding roller 5, tension roller 4, cutter 2, and rewinding roller 6 conforms to the film cutting and rewinding process flow, making it easy to operate, maintain, and manage. This reduces the labor intensity of operators and improves the degree of automation in production.

[0029] In this embodiment of the utility model, the electromagnetic shielding layer 7 is a metal mesh, which is generally made of highly conductive copper mesh or stainless steel mesh. The static elimination group 8 includes a static elimination fan rod 801, two clamps 802 and two fixing blocks 803. The two clamps 802 are respectively installed at both ends of the static elimination fan rod 801. The two clamps 802 are installed on the upper ends of the two fixing blocks 803 by bolts. The two fixing blocks 803 are installed on both sides inside the bracket 1.

[0030] The unwinding roller 5 is located below a set of tensioning rollers 4. The metallized polypropylene film gradually unfolds from the unwinding roller 5. The two rubber rollers 401 of the tensioning roller 4 use their friction to drive the film forward and maintain the film tension through the pressure between the two rollers 401. The two sets of tensioning rollers 4, together with the pad 101, provide stable support and guidance for the film's transmission inside the support 1, ensuring that the film moves smoothly and evenly and enters the subsequent processing stage. Below the pad 101, a metal mesh made of highly conductive copper or stainless steel mesh is set as an electromagnetic shielding layer 7. During the film transmission process, the external electromagnetic field will induce a current in the metal mesh. According to the principle of electromagnetic induction, this induced current will generate a magnetic field opposite to the direction of the external electromagnetic field, thereby canceling the effect of the external electromagnetic field on the film. To mitigate the impact of electromagnetic interference on the film's electrical properties and ensure stable film performance, the antistatic air bar 801 in the antistatic assembly 8 generates a large number of positive and negative ions by ionizing the air. When a film carrying static electricity passes under the antistatic air bar 801, the positive and negative ions blown out by the air bar neutralize the static charge on the film surface, thereby eliminating static electricity. The antistatic air bar 801 is fixed at both ends by clamps 802, which are bolted to the upper end of fixing blocks 803. The two fixing blocks 803 are installed on both sides inside the bracket 1 to ensure that the antistatic air bar 801 is stably positioned at the bottom of the cutting plate 201, continuously and effectively removing static electricity from the film transported to the cutting area. After anti-interference and antistatic treatment, the film reaches the cutting machine 2 for cutting. The cutter 2 cuts the film according to the set specifications. The cut film is guided by the conveying device to the take-up roller 6 at the top of the support plate 3. The take-up roller 6, driven by the drive device, winds up and collects the cut film, completing the entire cutting process. A highly conductive copper mesh or stainless steel mesh is used as the electromagnetic shielding layer 7, which can effectively shield external electromagnetic interference. The good conductivity of the metal mesh causes the induced current to be generated quickly and form a reverse magnetic field, which effectively protects the metallized polypropylene film from electromagnetic interference, greatly improves the film quality, and ensures its application effect in fields with strict requirements for electromagnetic performance, such as electronics. The antistatic air bar 801 is equipped with a specific installation structure, which is convenient for installation and disassembly. The design of the clamp 802 and the fixing block 803 allows the antistatic air bar 801 to be firmly installed on both sides inside the bracket 1, always The system stabilizes the film transport path. The air bar ionizes the air to generate positive and negative ions for static elimination, which is efficient and fast. This effectively eliminates static electricity on the film surface, preventing dust adsorption and ensuring the film's cutting accuracy and electrical performance are maintained. It also reduces the risk of safety accidents caused by static electricity. The friction and pressure of the tension roller 4 and rubber roller 401, along with the support of the pad 101, ensure smooth film transport, reducing issues such as slack, wrinkles, and deviation during transport. This provides a stable and flat film for the cutting machine 2, improving cutting accuracy, ensuring production continuity, and enhancing overall production efficiency. The layout of each component conforms to the film cutting process; for example, the unwind roller 5, tension roller 4, cutting machine 2, and take-up roller 6 are rationally positioned. The static eliminator 8 and electromagnetic shielding layer 7 have simple structures and are easy to maintain.The metal mesh of the electromagnetic shielding layer 7 is durable, and the installation method of the static eliminator group 8 facilitates disassembly and replacement of components, reducing equipment maintenance costs and operator workload, and promoting production automation.

[0031] In this embodiment of the utility model, limit blocks 302 are fixedly installed at both ends of the support plate 3, and the winding roller 6 is installed inside the limit blocks 302. The winding roller 6 and the limit blocks 302 are movably connected. A spring 303 is fixedly installed on the upper end of each limit block 302, and a positioning block 304 is installed on the upper end of each spring 303. A rotating shaft 305 is provided through the positioning block 304. A positioning roller 306 is nested on the outer surface of the rotating shaft 305. The outer surface of the positioning roller 306 is made of rubber. The positioning roller 306 and the rotating shaft 305 are rotatably connected. A baffle 307 is installed on the upper end of the support plate 3. The baffle 307 is connected to the support plate 3 by bolts, and the baffle 307 and the support plate 3 are detachably connected.

[0032] The unwinding roller 5 is located below a set of tensioning rollers 4. The metallized polypropylene film gradually unfolds from the unwinding roller 5. The two rubber rollers 401 of the tensioning roller 4 use their friction to drive the film forward, and the pressure between the two rollers 401 maintains the tension of the film. The two sets of tensioning rollers 4, together with the pad 101, provide stable support and guidance for the film's transmission inside the support 1, ensuring that the film moves smoothly and evenly and enters the subsequent processing stage. Below the pad 101, a metal mesh made of highly conductive copper or stainless steel mesh is set as an electromagnetic shielding layer 7. During the film transmission process, the external electromagnetic field will induce a current in the metal mesh. According to the principle of electromagnetic induction, this induced current will generate a magnetic field opposite to the direction of the external electromagnetic field, thereby... To counteract the influence of external electromagnetic fields on the thin film, prevent electromagnetic interference with the film's electrical properties, and ensure stable film performance, the antistatic air bar 801 in the antistatic assembly 8 generates a large number of positive and negative ions by ionizing the air. When a film carrying static electricity passes under the antistatic air bar 801, the positive and negative ions blown out by the air bar neutralize the static charge on the film surface, thereby eliminating static electricity on the film surface. The two ends of the antistatic air bar 801 are fixed by clamps 802, which are bolted to the upper end of fixing blocks 803. The two fixing blocks 803 are installed on both sides inside the bracket 1 to ensure that the antistatic air bar 801 is stably positioned at the bottom of the cutting plate 201, continuously and effectively removing static electricity from the film transmitted to the cutting area. After anti-interference and antistatic treatment... The electrostatically treated film arrives at the cutting machine 2, which cuts the film according to the set specifications. The cut film moves towards the take-up roller 6 at the upper end of the support plate 3. The take-up roller 6 is installed inside the limit blocks 302 at both ends of the support plate 3 and is movably connected, allowing it to rotate flexibly for winding. The spring 303 at the upper end of the limit block 302 supports the positioning block 304. The rubber positioning roller 306 nested outside the rotating shaft 305 in the positioning block 304 can rotate. When the film deviates in position during winding, it will contact the positioning roller 306. Since the outer surface of the positioning roller 306 is made of rubber, it has a certain friction, which can correct the deviation of the film. At the same time, the elasticity of the spring 303 can buffer the impact force of the film on the positioning roller 306, allowing the positioning roller 306 to better adapt to the film. To accommodate changes in the film's position, a baffle 307 installed on the upper end of the support plate 3 is detachably connected to the support plate 3 via bolts. The baffle 307 prevents the film from accidentally slipping to the side during winding, providing protection. If adjustment or maintenance of the winding area is required, the baffle 307 can be removed by unscrewing the bolts for easy operation. A highly conductive copper or stainless steel mesh is used as the electromagnetic shielding layer 7, effectively shielding against external electromagnetic interference. The excellent conductivity of the metal mesh allows for the rapid generation of induced current and the formation of a reverse magnetic field, effectively protecting the metallized polypropylene film from electromagnetic interference, greatly improving film quality, and ensuring its application in fields with stringent electromagnetic performance requirements, such as electronics. The antistatic air bar 801, combined with a specific installation structure, is easy to install and disassemble.The design of the chuck 802 and fixing block 803 allows the antistatic air bar 801 to be firmly installed on both sides inside the bracket 1, always acting stably on the film transport path. The air bar ionizes the air to generate positive and negative ions for antistatic removal, which is efficient and fast, and can promptly eliminate static electricity on the film surface, preventing static electricity from attracting dust and affecting the film cutting accuracy and electrical performance. At the same time, it reduces the risk of safety accidents caused by static electricity. The friction and pressure of the tension roller 4 rubber roller 401, as well as the support of the pad 101, ensure smooth film transport and reduce problems such as slack, wrinkles, and deviation during film transport. This provides a stable and flat film for the cutting machine 2, improves cutting accuracy, ensures production continuity, and improves overall production efficiency. The layout of each component conforms to the film cutting process, such as the unwind roller 5, tension roller 401, and tension roller 502. The tight roller 4, cutting machine 2, and winding roller 6 are rationally arranged. The antistatic assembly 8 and electromagnetic shielding layer 7 have simple structures that are easy to maintain. The metal mesh of the electromagnetic shielding layer 7 is durable. The installation method of the antistatic assembly 8 facilitates disassembly and replacement of parts, reducing equipment maintenance costs and operator labor intensity, and promoting production automation. The combination of limit block 302, spring 303, positioning block 304, rotating shaft 305, and positioning roller 306 enables automatic film correction during winding, improving winding quality and reducing film waste caused by misalignment. The rubber positioning roller 306 increases friction with the film, resulting in better correction. The detachable baffle 307 provides protection and facilitates equipment maintenance and adjustment, enhancing the practicality and operability of the equipment.

[0033] Working principle: Metallized polypropylene film is wound onto unwinding roller 5, which is located below a set of tensioning rollers 4. The film gradually unfolds from the unwinding roller 5. The tensioning roller 4 consists of two rubber rollers 401, whose friction drives the film forward. The pressure between the rollers 401 maintains the tension of the film. The two sets of tensioning rollers 4, together with the pad 101, ensure that the film is transported smoothly and evenly inside the support 1. During the transport process, the electromagnetic shielding layer 7 below the pad 101 plays a role. The metal mesh, made of highly conductive copper or stainless steel mesh, generates an induced current under the influence of an external electromagnetic field. According to the principle of electromagnetic induction, this current forms a reverse magnetic field, which cancels the interference of the external electromagnetic field on the film and ensures the stability of the film's electrical performance. In terms of static electricity removal, the static eliminator 801 of the static eliminator group 8 generates a large number of positive and negative ions by ionizing the air. When the film with static electricity passes under the static eliminator 801, the positive and negative ions blown out react with the film. The surface static charge is neutralized, eliminating static electricity. The antistatic air bar 801 is installed on the fixed block 803 through the clamp 802. The fixed block 803 is located on both sides inside the bracket 1 to ensure that the air bar acts stably on the film transmission path. During the cutting stage, the film that has undergone anti-interference and antistatic treatment arrives at the cutting machine 2. The cutting machine 2 cuts the film according to the set specifications. During winding, the cut film moves towards the winding roller 6 at the upper end of the support plate 3. The winding roller 6 is installed inside the limit blocks 302 at both ends of the support plate 3 and can rotate flexibly. The spring 303 on the limit block 302 supports the positioning block 304. The rotating shaft 305 in the positioning block 304 is nested with a rubber positioning roller 306. When the film deviates during winding, it contacts the positioning roller 306. The friction of its rubber surface corrects the deviation. The spring 303 buffers the impact force. The detachable baffle 307 on the support plate 3 prevents the film from slipping. It can be removed for maintenance, and finally the entire film cutting process is completed.

Claims

1. An anti-interference metallized polypropylene film cutting device, comprising: The bracket (1) is characterized in that: a cutting machine (2) is provided at the upper end of the bracket (1), a support plate (3) is provided on one side of the bracket (1), two sets of tension rollers (4) are provided on the inner side of the bracket (1), an unwinding roller (5) is provided on the inner side of the bracket (1), and a winding roller (6) is provided at the upper end of the support plate (3). A pad (101) is provided on the inner side of the bracket (1), the two sets of tension rollers (4) are located on both sides of the pad (101), an electromagnetic shielding layer (7) is provided below the pad (101), a cutting plate (201) is provided on the side of the cutting machine (2), an anti-static group (8) is provided at the bottom of the cutting plate (201), and a support frame (301) is provided at the bottom of the support plate (3).

2. The anti-interference metallized polypropylene film cutting device according to claim 1, characterized in that: Both sets of tension rollers (4) include two rotating rollers (401), the outer surfaces of the two rotating rollers (401) are made of rubber, and the unwinding roller (5) is located below one of the sets of tension rollers (4).

3. The anti-interference metallized polypropylene film cutting device according to claim 1, characterized in that: The electromagnetic shielding layer (7) is a metal mesh, which is generally made of highly conductive copper mesh or stainless steel mesh.

4. The anti-interference metallized polypropylene film cutting device according to claim 1, characterized in that: The static eliminator assembly (8) includes a static eliminator fan bar (801), two clamps (802) and two fixing blocks (803). The two clamps (802) are respectively installed at both ends of the static eliminator fan bar (801), and the two clamps (802) are installed on the upper ends of the two fixing blocks (803) by bolts.

5. The anti-interference metallized polypropylene film cutting device according to claim 4, characterized in that: The two fixing blocks (803) are installed on both sides inside the bracket (1).

6. The anti-interference metallized polypropylene film cutting device according to claim 1, characterized in that: Limiting blocks (302) are fixedly installed at both ends of the support plate (3), and the winding roller (6) is installed inside the limiting block (302). The winding roller (6) and the limiting block (302) are movably connected.

7. The anti-interference metallized polypropylene film cutting device according to claim 6, characterized in that: Each of the limiting blocks (302) is fixedly mounted with a spring (303), and each of the springs (303) is mounted with a positioning block (304). The positioning block (304) is through a rotating shaft (305), and a positioning roller (306) is nested on the outer surface of the rotating shaft (305). The outer surface of the positioning roller (306) is made of rubber, and the positioning roller (306) and the rotating shaft (305) are rotatably connected.

8. The anti-interference metallized polypropylene film cutting device according to claim 1, characterized in that: A baffle (307) is installed on the upper end of the support plate (3). The baffle (307) is connected to the support plate (3) by bolts, and the baffle (307) and the support plate (3) are detachably connected.

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