A flame-retardant thermosetting PET film production film cutting device

Abstract

This invention provides a film cutting device for the production of flame-retardant thermosetting PET film, belonging to the field of PET film cutting technology. It includes a support frame, with an infeed roller and an outlet roller respectively located on both sides of the top of the support frame. A cutter drive unit is mounted on the side of the support frame near the outlet roller, and a cutter is mounted on the cutter drive unit. A film pressing assembly is located on the top of the support frame near the outlet roller, and the film pressing assembly is connected to the outlet roller. The film pressing assembly cooperates with the outlet roller to drive the displacement of the PET film. This invention, by incorporating a blowing assembly, provides extrusion pressure to the PET film on the outlet roller, increasing the friction between the PET film and the outlet roller. This eliminates the need for precise adjustment of the gap between the film pressing assembly and the outlet roller. Simultaneously, the film pressing assembly does not need to contact the surface of the PET film, avoiding impurities on the surface of the film pressing roller that could cause the PET film to shift position on the outlet roller.

Description

Technical Field

[0001] This invention relates to the field of PET film cutting technology, and in particular to a film cutting device for the production of flame-retardant thermosetting PET film. Background Technology

[0002] Polyethylene terephthalate (PET) film is widely used in electronics, packaging, and architectural decoration due to its excellent mechanical properties, chemical resistance, electrical insulation, and high transparency. With the increasing demands for material safety performance from downstream applications, especially in high-end fields such as power batteries, flexible electronic devices, and aerospace, flame-retardant thermosetting PET film has emerged. In the production process of flame-retardant thermosetting PET film, the film cutting process is a key step that determines the dimensional accuracy and cross-sectional quality of the product.

[0003] In existing PET film cutting processes, to ensure stable displacement of the PET film on the discharge roller, precise adjustment of the pressure roller above the discharge roller is required to maintain a suitable distance between them. However, the pressure roller is exposed and may accumulate impurities during operation, causing the PET film to shift and resulting in poor cutting quality. Furthermore, the cutting blade heats up during high-speed reciprocating cutting, melting the adhesive in the PET film interlayer, which deteriorates the cutting effect over time. Therefore, this application provides a film cutting device for flame-retardant thermosetting PET film production to meet these requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a film cutting device for the production of flame-retardant thermosetting PET film. In order to ensure the smooth displacement of the PET film on the discharge roller during the cutting process, the pressure roller above the discharge roller needs to be precisely adjusted to maintain a suitable distance between the pressure roller and the discharge roller. At the same time, the pressure roller is exposed and may stick to some impurities during operation, causing the PET film to shift and resulting in poor cutting effect. In addition, the cutting blade heats up during high-speed reciprocating cutting, melting the glue in the PET film interlayer, which leads to a deterioration of the cutting effect over time.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A film cutting device for producing flame-retardant thermosetting PET film includes a support frame, with an infeed roller and an outlet roller respectively located on both sides of the top of the support frame. A cutter drive unit is installed on the side of the support frame near the outlet roller, and a cutter is mounted on the cutter drive unit. A film pressing assembly is located on the top of the support frame near the outlet roller and is connected to the outlet roller. The film pressing assembly is used to cooperate with the outlet roller to drive the PET film displacement. A blowing assembly is located inside the film pressing assembly and is connected to the film pressing assembly. The blowing assembly is used to provide extrusion pressure to the PET film on the outlet roller. A directional assembly is located on the blowing assembly and is connected to the directional assembly. The directional assembly is used to adjust the airflow direction of the blowing assembly. The device also includes a reciprocating assembly for adjusting the airflow direction of the directional assembly.

[0006] Optionally, the film pressing assembly includes two adjusting frames fixedly connected to the top of the support, and a film pressing roller is fixedly connected between the two adjusting frames.

[0007] Optionally, the pressing roller is a hollow tubular structure, and three sets of air blowing units are evenly distributed at the bottom of the pressing roller; the air blowing unit includes a pressing port opened at the bottom of the pressing roller, and a cooling port is opened on the outer wall of the pressing roller near the pressing port. A guide plate is fixedly connected to the outer wall of the pressing roller near the cooling port, and the other end of the guide plate extends to the cutting position of the cutter.

[0008] Optionally, the blowing assembly includes blowing pipes fixedly connected to both ends of the inside of the pressing roller. The inside of the blowing pipe is hollow. An air supply pipe is provided above the blowing pipe. Three air guide pipes are fixedly connected to the upper part of the air supply pipe. All three air guide pipes are connected to the inside of the blowing pipe. Three strip-shaped slots are opened on the bottom outer wall of the blowing pipe at positions corresponding to the air guide pipes. The positions of the three strip-shaped slots correspond one-to-one with the positions of the three pressing ports. The air inlet end of the air supply pipe passes through the pressing roller and the adjusting frame in sequence and extends to the outside of the adjusting frame. Three adjusting grooves are opened on the outer wall of the blowing pipe near the air guide pipe.

[0009] Optionally, a booster pipe is fixedly connected to the inner wall of the blower pipe at a position corresponding to the air guide pipe; the inlet and outlet of the booster pipe correspond to the air guide pipe and the strip groove, respectively; two booster blocks are fixedly connected to the inner wall of the booster pipe in a symmetrical distribution; and several guide strips are fixedly connected to the outer wall of the booster blocks in a uniform distribution.

[0010] Optionally, the directional assembly includes three sets of collars sleeved on the outer wall of the adjusting slide groove. A first connecting rod is fixedly connected to the bottom of the collar, a cooling pipe is fixedly connected to one end of the first connecting rod, a pressure film tube is fixedly connected to one side of the cooling pipe, and a second connecting rod is fixedly connected between every two adjacent collars. The second connecting rod located on the side passes through the pressure film roller and the adjusting frame in sequence and extends to the outside of the adjusting frame.

[0011] Optionally, a closing groove is provided on one side of the film-forming tube, and a sliding groove is provided on the closing groove. A directional sliding plate is slidably connected to the sliding groove. The shape of the directional sliding plate is adapted to the shape of the closing groove. Sliding grooves and sliding strips are fixedly connected to both ends of the directional sliding plate. A first limiting block is fixedly connected to one end of the sliding groove and sliding strip. A second limiting block is fixedly connected to the side of the directional sliding plate away from the first limiting block. The bottom of the film-forming tube is fixedly connected to the inner wall of the film-forming opening.

[0012] Optionally, the cooling pipe is an arc-shaped tubular structure, the cooling pipe, the directional sliding plate, and the pressure film pipe have the same length, the top and bottom of the cooling pipe are fixedly connected to sliding strips connected to the sliding groove strips, and the cooling pipe is slidably connected to the inner wall of the cooling port.

[0013] Optionally, the reciprocating assembly includes two reciprocating baffles fixedly connected to one side of the adjusting frame. The two reciprocating baffles are respectively located on both sides of the second connecting rod. A reciprocating block is slidably connected between the two reciprocating baffles. A synchronizing rod is fixedly connected to the outer side of the reciprocating block. The other end of the synchronizing rod is connected to the cutter driving unit. The inner side of the reciprocating block is in contact with the second connecting rod.

[0014] Optionally, the reciprocating baffle has a protruding rod groove on its inner side, and the two sides of the reciprocating block are fixedly connected with sliding protruding rods. The reciprocating block and the reciprocating baffle are slidably connected through the sliding protruding rods and the protruding rod groove.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above solution, by setting up a blowing assembly, the blowing assembly provides extrusion pressure to the PET film on the discharge roller, increasing the friction between the PET film and the discharge roller. There is no need to precisely adjust the gap between the pressing assembly and the discharge roller. At the same time, the pressing assembly does not need to contact the surface of the PET film, avoiding impurities on the surface of the pressing roller that could cause the PET film to shift position on the discharge roller.

[0016] By setting up pressure blocks, the outer wall of the pressure blocks has an arc-shaped structure that is concave inward and convex outward. This arc-shaped structure will reduce the flow velocity of the airflow blown out of the air duct between the two pressure blocks, increase the static pressure of the airflow between the pressure blocks, and store power for the subsequent flow out from the strip-shaped slot. At the same time, the cross-sectional area of ​​the strip-shaped slot is smaller than the cross-sectional area of ​​the air duct, thereby increasing the airflow velocity and allowing it to enter the directional component with a higher flow velocity.

[0017] By setting up a directional component, the pressure tube and cooling tube respectively provide extrusion pressure to the PET film and provide air cooling for the cutter. At the same time, the switching between the pressure tube and the cooling tube is synchronized with the cutting operation of the cutter through the reciprocating component. The cooling tube blows air to the cutting position of the cutter to avoid the cutter from overheating during high-speed reciprocating motion, which would cause the cutter blade to stick to glue when cutting the PET film and affect the cutting effect. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0019] Figure 1 A three-dimensional structural diagram of a film cutting device for the production of flame-retardant thermosetting PET film; Figure 2 A three-dimensional structural diagram of the discharge roller and the film pressing assembly; Figure 3 A three-dimensional structural diagram of the assembly of the film pressing assembly, reciprocating assembly, blowing assembly and directional assembly; Figure 4 This is a schematic diagram of the three-dimensional structure of the pressure roller; Figure 5 A three-dimensional structural diagram of the assembly parts of the film pressing assembly, the blowing assembly, and the orientation assembly; Figure 6 A three-dimensional structural diagram of the assembly parts for the blower assembly and the directional assembly; Figure 7 This is a schematic diagram of the three-dimensional structure of the booster pipe; Figure 8 A three-dimensional cross-section diagram of the booster pipe; Figure 9 This is a first-person perspective three-dimensional structural diagram of the orientation component; Figure 10 This is a schematic diagram of the second-view three-dimensional structure of the orientation component; Figure 11 A schematic diagram of the exploded three-dimensional structure of the orientation component; Figure 12 for Figure 11 Schematic diagram of the three-dimensional structure at point A in the middle; Figure 13This is a schematic diagram of the three-dimensional structure of the reciprocating component.

[0020] Figure label: 1. Support frame; 2. Feed roller; 3. Discharge roller; 4. Cutter drive unit; 5. Cutter; 6. Film pressing assembly; 61. Adjusting frame; 62. Film pressing roller; 63. Guide plate; 64. Film pressing port; 65. Cooling port; 7. Reciprocating assembly; 71. Synchronizing rod; 72. Reciprocating block; 73. Sliding convex rod; 74. Reciprocating baffle; 741. Convex rod groove; 8. Blowing assembly; 81. Blowing pipe; 811. Adjusting groove; 8 12. Strip-shaped slot; 82. Air supply pipe; 821. Air guide pipe; 83. Pressure boosting pipe; 831. Pressure boosting block; 832. Guide strip; 9. Directional assembly; 91. Pressure film pipe; 911. Directional sliding plate; 912. Closing groove; 913. Sliding bar and groove; 914. Sliding bar and groove; 915. First limiting block; 916. Second limiting block; 92. Cooling pipe; 93. First connecting rod; 94. Collar; 95. Second connecting rod.

[0021] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0022] The following is a detailed description of a film-cutting apparatus for producing flame-retardant thermosetting PET film provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0023] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0024] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0025] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0026] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0027] like Figures 1 to 13 As shown, an embodiment of the present invention provides a film cutting device for producing flame-retardant thermosetting PET film, including a support 1, with an infeed roller 2 and an outlet roller 3 respectively provided on both sides of the top of the support 1. A cutter drive unit 4 is installed on the side of the support 1 near the outlet roller 3, and a cutter 5 is installed on the cutter drive unit 4. The support 1, infeed roller 2, outlet roller 3, cutter drive unit 4, and cutter 5 are all prior art. A film pressing assembly 6 is located on the top of the support 1 near the outlet roller 3 and is connected to the outlet roller 3. The film pressing assembly 6 is used to cooperate with the outlet roller 3 to drive the PET film displacement. A blowing assembly 8 is located inside the film pressing assembly 6 and is connected to the film pressing assembly 6. The blowing assembly 8 is used to provide extrusion pressure on the PET film on the outlet roller 3. A directional assembly 9 is located on the blowing assembly 8 and is connected to the directional assembly 9. The directional assembly 9 is used to adjust the airflow direction of the blowing assembly 8. It also includes a reciprocating assembly 7 for adjusting the airflow direction of the directional assembly 9.

[0028] One end of the bracket 1 near the feed roller 2 is connected to a PET film holder. The PET film on the holder passes through the feed roller 2, guide roller, and discharge roller 3 in sequence, extending to below the cutter 5. The drive device inside the bracket 1 drives the feed roller 2 and discharge roller 3 to rotate, moving the PET film. The cutter drive unit 4 drives the cutter 5 to cut the PET film. When the discharge roller 3 moves the PET film, the blowing component 8 and the adjusting component 9 inside the film pressing assembly 6 work together to blow air above the PET film, increasing the friction between the PET film and the discharge roller 3. This eliminates the need for precise adjustment of the gap between the film pressing assembly 6 and the discharge roller 3. At the same time, the blowing work prevents the PET film from shifting position on the discharge roller 3. When the cutter 5 cuts the PET film, the adjusting component 9 adjusts the airflow direction to blow air onto the cutting position, preventing the cutter 5 from overheating during high-speed reciprocating motion, which could cause glue to stick to the blade and affect the cutting effect.

[0029] like Figures 1 to 4 As shown, the film pressing assembly 6 includes two adjusting frames 61 fixedly connected to the top of the support 1. The adjusting frames 61 are existing technology. The height of the film pressing roller 62 can be adjusted by adjusting the adjusting frames 61. The film pressing roller 62 is fixedly connected between the two adjusting frames 61. The film pressing roller 62 is a hollow tubular structure. The film pressing roller 62 provides installation space for the blowing assembly 8 and the adjusting assembly 9. The bottom of the film pressing roller 62 is provided with three sets of evenly spaced air blowing units. The three sets of air blowing units are located in the middle and on both sides of the PET film, respectively. The three sets of air blowing units can effectively prevent the PET film from shifting. The air blowing unit includes a film pressing port 64 opened at the bottom of the film pressing roller 62. A cooling port 65 is opened on the outer wall of the film pressing roller 62 near the film pressing port 64. A guide plate 63 is fixedly connected to the outer wall of the film pressing roller 62 near the cooling port 65. The other end of the guide plate 63 extends to the cutting position of the cutter 5.

[0030] like Figures 5 to 8As shown, the blowing assembly 8 includes blowing pipes 81 fixedly connected to both ends of the inner end of the pressure roller 62. The blowing pipes 81 are hollow inside. An air supply pipe 82 is provided above the blowing pipes 81. Three air guide pipes 821 are fixedly connected to the upper part of the air supply pipe 82. All three air guide pipes 821 are connected to the inside of the blowing pipe 81. Three strip-shaped slots 812 are opened on the bottom outer wall of the blowing pipe 81 at positions corresponding to the air guide pipes 821. The positions of the three strip-shaped slots 812 correspond one-to-one with the positions of the three pressure holes 64. The air inlet end of the air supply pipe 82 passes through the pressure roller 62 and the adjusting frame 61 in sequence, extending to the outside of the adjusting frame 61. Three adjusting grooves 811 are opened on the outer wall of the blowing pipe 81 near the air guide pipes 821. The adjusting grooves 811 provide sliding tracks for the adjusting assembly 9. The inner wall of the blowing pipe 81 and the air guide pipes 821 are connected to the outer wall of the blowing pipe 81. A booster pipe 83 is fixedly connected to the corresponding position of the pipe 821. The inlet and outlet of the booster pipe 83 correspond to the air guide pipe 821 and the strip slot 812, respectively. Two booster blocks 831 are fixedly connected to the inner wall of the booster pipe 83 in a symmetrical distribution. Several guide strips 832 are fixedly connected to the outer wall of the booster block 831. The outer wall of the booster block 831 has an arc-shaped structure that is concave inward and convex outward. This arc-shaped structure will reduce the flow velocity of the air blown out of the air guide pipe 821 between the two booster blocks 831, increase the static pressure of the air flow between the booster blocks 831, and store power for the subsequent flow out from the strip slot 812. At the same time, the cross-sectional area of ​​the strip slot 812 is smaller than the cross-sectional area of ​​the air guide pipe 821, thereby increasing the air flow velocity and allowing it to enter the directional component 9 with a higher flow velocity.

[0031] During operation, the external fan assembly is fixedly connected to one end of the air supply pipe 82. The external fan assembly blows air into the air supply pipe 82, and the air supply pipe 82 then enters the pressurization pipe 83 inside the blowing pipe 81 through three air guide pipes 821. The pressurization pipe 83 pressurizes the air blown in by the air guide pipe 821, and then blows it into the directional component 9 through the strip-shaped slot 812 at the bottom of the blowing pipe 81.

[0032] like Figure 5 , Figure 6 and Figures 9 to 12As shown, the directional adjustment assembly 9 includes three sets of collars 94 sleeved on the outer wall of the adjusting slide groove 811. A first connecting rod 93 is fixedly connected to the bottom of each collar 94. A cooling pipe 92 is fixedly connected to one end of the first connecting rod 93. A pressure film tube 91 is fixedly connected to one side of the cooling pipe 92. Each pair of adjacent collars 94 is fixedly connected by a second connecting rod 95. The second connecting rod 95 located on the side passes through the pressure film roller 62 and the adjusting frame 61, extending to the outside of the adjusting frame 61. A closing groove 912 is provided on one side of the pressure film tube 91. A sliding groove 913 is provided on the closing groove 912. A directional adjustment slide plate 911 is slidably connected to the sliding groove 913. The shape of the sliding plate 911 is adapted to the shape of the closed groove 912. The two ends of the directional sliding plate 911 are fixedly connected to the sliding groove strip 914. One end of the sliding groove strip 914 is fixedly connected to the first limiting block 915. The side of the directional sliding plate 911 away from the first limiting block 915 is fixedly connected to the second limiting block 916. The bottom of the pressure film tube 91 is fixedly connected to the inner wall of the pressure film opening 64. The cooling pipe 92 is an arc-shaped tubular structure. The lengths of the cooling pipe 92, the directional sliding plate 911 and the pressure film tube 91 are the same. The top and bottom of the cooling pipe 92 are fixedly connected to the sliding strip 914. The cooling pipe 92 is slidably connected to the inner wall of the cooling opening 65.

[0033] Airflow enters the connected pressing tube 91 through the strip-shaped slot 812. At this time, the adjusting slide plate 911 is in its initial position, sealing the closing slot 912, allowing airflow to blow from the pressing tube 91 through the pressing port 64 onto the PET film. When the cutter 5 cuts the PET film, the cutter drive unit 4 drives the reciprocating assembly 7, which in turn drives the second connecting rod 95 to reciprocate. The second connecting rod 95 then drives the collar 94 to move on the adjusting slide 811. In reciprocating motion, when the collar 94 slides, it drives the cooling pipe 92 to move through the first connecting rod 93. When the cooling pipe 92 moves, it pushes the adjusting slide plate 911 to slide on the slide groove 913 until the second limiting block 916 abuts against the inner wall of the pressure film tube 91. The cooling pipe 92 replaces the adjusting slide plate 911 to close the closing groove 912. At this time, the airflow at the top of the pressure film tube 91 flows to the cooling pipe 92, and then flows out from the cooling port 65, and finally flows along the guide plate 63 to the cutting position of the cutter.

[0034] like Figure 13As shown, the reciprocating assembly 7 includes two reciprocating baffles 74 fixedly connected to one side of the adjusting frame 61. The two reciprocating baffles 74 are respectively located on both sides of the second connecting rod 95. The second connecting rod 95 located outside the adjusting frame 61 is fitted with a return spring. One end of the return spring is fixedly connected to one side of the adjusting frame 61, and the other end is fixedly connected to the top end of the second connecting rod 95. A reciprocating block 72 is slidably connected between the two reciprocating baffles 74. A synchronizing rod 71 is fixedly connected to the outer side of the reciprocating block 72. The other end of the synchronizing rod 71 is connected to the cutter drive unit 4. The inner side of the reciprocating block 72 is in contact with the second connecting rod 95. A protruding rod groove 741 is opened on the inner side of the reciprocating baffle 74. Sliding protruding rods 73 are fixedly connected to both sides of the reciprocating block 72. The reciprocating block 72 and the reciprocating baffle 74 are slidably connected through the sliding protruding rods 73 and the protruding rod groove 741.

[0035] When the cutter drive unit 4 is driven, it will drive the reciprocating block 72 to reciprocate through the synchronizing rod 71. When the synchronizing rod 71 drives the reciprocating block 72 to move downward, the triangular reciprocating block 72 will gradually squeeze the second connecting rod 95, squeezing the second connecting rod 95 to move inward. Conversely, when the reciprocating block 72 moves upward, it will gradually contact the squeezing of the second connecting rod 95. The second connecting rod 95 will then return to its initial position under the reset force of the reset spring.

[0036] The working principle of the technical solution provided by the present invention is as follows: the support 1 is connected to a PET film placement rack at one end near the feed roller 2. The PET film on the PET film placement rack passes through the feed roller 2, guide roller and discharge roller 3 in sequence and extends to the bottom of the cutter 5. The drive device inside the support 1 drives the feed roller 2 and discharge roller 3 to rotate, thereby moving the PET film.

[0037] During operation, the external fan assembly is fixedly connected to one end of the air supply pipe 82. The external fan assembly blows air into the air supply pipe 82, and the air supply pipe 82 then enters the pressurization pipe 83 inside the blowing pipe 81 through three air guide pipes 821. The pressurization pipe 83 pressurizes the air blown in by the air guide pipe 821, and then blows it into the directional component 9 through the strip-shaped slot 812 at the bottom of the blowing pipe 81.

[0038] Airflow enters the film pressing tube 91 connected to the strip groove 812. At this time, the adjusting slide plate 911 is in the initial position, sealing the closing groove 912, so that the airflow is blown from the film pressing tube 91 through the film pressing port 64 to the PET film.

[0039] When the cutter 5 cuts the PET film, the cutter drive unit 4 drives the reciprocating block 72 to reciprocate through the synchronizing rod 71. When the synchronizing rod 71 drives the reciprocating block 72 to move downward, the triangular reciprocating block 72 will gradually squeeze the second connecting rod 95, squeezing the second connecting rod 95 to move inward. Conversely, when the reciprocating block 72 moves upward, it will gradually contact the squeezing of the second connecting rod 95. The second connecting rod 95 will then return to its initial position under the reset force of the reset spring.

[0040] The reciprocating assembly 7 drives the second connecting rod 95 to reciprocate, and the second connecting rod 95 drives the collar 94 to reciprocate on the adjusting groove 811. When the collar 94 slides, it drives the cooling pipe 92 to move through the first connecting rod 93. When the cooling pipe 92 moves, it pushes the adjusting slide plate 911 to slide on the slide bar groove 913 until the second limit block 916 abuts against the inner wall of the pressure film tube 91. The cooling pipe 92 replaces the adjusting slide plate 911 to close the closing groove 912. At this time, the airflow at the top of the pressure film tube 91 flows to the cooling pipe 92, and then flows out from the cooling port 65, and finally flows along the guide plate 63 to the cutting position of the cutter.

[0041] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A film cutting device for producing flame-retardant thermosetting PET film, characterized in that, The device includes a support frame, with an infeed roller and an outfeed roller respectively located on both sides of the top of the support frame. A cutter drive unit is installed on the side of the support frame near the outfeed roller, and a cutter is installed on the cutter drive unit. A film pressing assembly is located on the top of the bracket near the discharge roller. The film pressing assembly is connected to the discharge roller and is used to cooperate with the discharge roller to drive the PET film displacement. A blower assembly is located inside the film pressing assembly and is connected to the film pressing assembly. The blower assembly is used to provide extrusion force to the PET film on the discharge roller. A directional adjustment component is located on the blowing assembly, and the blowing assembly is connected to the directional adjustment component. The directional adjustment component is used to adjust the airflow direction of the blowing assembly. It also includes a reciprocating component for adjusting the direction of the blowing air of the directional component.

2. The film cutting device for producing flame-retardant thermosetting PET film according to claim 1, characterized in that, The film pressing assembly includes two adjusting frames fixedly connected to the top of the support, and a film pressing roller is fixedly connected between the two adjusting frames.

3. The film cutting device for producing flame-retardant thermosetting PET film according to claim 2, characterized in that, The pressing roller is a hollow tubular structure, and three sets of air blowing nozzles are evenly distributed at the bottom of the pressing roller. The air outlet unit includes a film pressing port at the bottom of the film pressing roller. A cooling port is provided on the outer wall of the film pressing roller near the film pressing port. A guide plate is fixedly connected to the outer wall of the film pressing roller near the cooling port. The other end of the guide plate extends to the cutting position of the cutter.

4. The film cutting device for producing flame-retardant thermosetting PET film according to claim 3, characterized in that, The blowing assembly includes blowing pipes fixedly connected to both ends of the inside of the pressing roller. The inside of the blowing pipe is hollow. An air supply pipe is provided above the blowing pipe. Three air guide pipes are fixedly connected to the upper part of the air supply pipe. All three air guide pipes are connected to the inside of the blowing pipe. Three strip-shaped slots are opened on the bottom outer wall of the blowing pipe at positions corresponding to the air guide pipes. The positions of the three strip-shaped slots correspond one-to-one with the positions of the three pressing ports. The air inlet end of the air supply pipe passes through the pressing roller and the adjusting frame in sequence and extends to the outside of the adjusting frame. Three adjusting grooves are opened on the outer wall of the blowing pipe near the air guide pipes.

5. The film cutting device for producing flame-retardant thermosetting PET film according to claim 4, characterized in that, A pressure boosting pipe is fixedly connected to the inner wall of the blower pipe at a position corresponding to that of the air guide pipe; The inlet and outlet of the booster pipe correspond to the air duct and the strip groove, respectively. Two booster blocks are fixedly connected to the inner wall of the booster pipe in a symmetrical arrangement. Several guide strips are fixedly connected to the outer wall of the booster blocks in a uniform arrangement.

6. The film cutting device for producing flame-retardant thermosetting PET film according to claim 5, characterized in that, The directional adjustment assembly includes three sets of collars sleeved on the outer wall of the adjusting slide groove. A first connecting rod is fixedly connected to the bottom of the collar. A cooling pipe is fixedly connected to one end of the first connecting rod. A pressure film tube is fixedly connected to one side of the cooling pipe. Each pair of adjacent collars is fixedly connected by a second connecting rod. The second connecting rod located on the side passes through the pressure film roller and the adjusting frame in sequence and extends to the outside of the adjusting frame.

7. The film cutting device for producing flame-retardant thermosetting PET film according to claim 6, characterized in that, A closed groove is provided on one side of the pressure tube, and a slide bar groove is provided on the closed groove. A directional sliding plate is slidably connected to the slide bar groove. The shape of the directional sliding plate is adapted to the shape of the closed groove, and slide bar grooves are fixedly connected to both ends of the directional sliding plate. One end of the slide rail is fixedly connected to a first limiting block, and the side of the directional sliding plate away from the first limiting block is fixedly connected to a second limiting block. The bottom of the pressure tube is fixedly connected to the inner wall of the pressure port.

8. The film cutting device for producing flame-retardant thermosetting PET film according to claim 7, characterized in that, The cooling pipe is an arc-shaped tubular structure. The cooling pipe, the directional sliding plate, and the pressure film pipe have the same length. The top and bottom of the cooling pipe are fixedly connected to sliding strips that are connected to the sliding groove strips. The cooling pipe is slidably connected to the inner wall of the cooling port.

9. The film cutting device for producing flame-retardant thermosetting PET film according to claim 8, characterized in that, The reciprocating assembly includes two reciprocating baffles fixedly connected to one side of the adjusting frame. The two reciprocating baffles are respectively located on both sides of the second connecting rod. A reciprocating block is slidably connected between the two reciprocating baffles. A synchronizing rod is fixedly connected to the outer side of the reciprocating block. The other end of the synchronizing rod is connected to the cutter drive unit. The inner side of the reciprocating block is in contact with the second connecting rod.

10. The film cutting device for producing flame-retardant thermosetting PET film according to claim 9, characterized in that, The reciprocating baffle has a protruding rod groove on its inner side, and the two sides of the reciprocating block are fixedly connected with sliding protruding rods. The reciprocating block and the reciprocating baffle are slidably connected by the sliding protruding rods and the protruding rod groove.

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