A modular extrusion processing device for multilayer coextruded antistatic film

Abstract

The utility model relates to anti -static film processing technical field, concretely disclose a kind of modular extrusion processing device for multilayer co-extrusion anti-static film, including chassis and multiple protective strips, and the top of chassis is fixedly installed with extrusion die, and the top of chassis is fixedly connected with backing plate, and the both sides of extrusion die are fixedly connected with distribution block;When using, material in one of protective strips enters distribution cylinder, opens valve, and material in distribution cylinder is extruded by bottom layer of extrusion die through distribution block, and material in other two protective strips is extruded by top layer of extrusion die, finally, two layers of film are extruded to the top of backing plate by extrusion die;If more layers of material are needed, just increase protective strip in the middle part of extrusion die;The modular extrusion processing device is high in modular degree, strong in applicability, and the multilayer co-extrusion anti-static film prepared can have the multifunctional effects of durable anti-static, temperature resistance, wear resistance, etc.

Description

Technical Field

[0001] This utility model relates to the field of antistatic film processing technology, and in particular to a modular extrusion processing device for multilayer co-extruded antistatic film. Background Technology

[0002] With the rapid development of industries such as electronics, optoelectronics, communications, and medical devices, extremely high requirements have been placed on the anti-static protection of products during production, transportation, and storage. Anti-static films, due to their structural strength, barrier properties, and durable and reliable anti-static function, play a crucial role in the packaging, storage, and transportation of electronic components, integrated circuits, precision instruments, and other products. Their function is to effectively prevent damage to sensitive components caused by static electricity accumulation.

[0003] In the early stages of industry development, single-layer extrusion equipment was commonly used to produce antistatic films. The process typically involved mixing a base resin with antistatic masterbatch, melting and plasticizing it through an extruder, then extruding it through a single-layer die and cooling it to set. To ensure the film's mechanical strength and dimensional stability, a high concentration of base resin was required, but this resulted in insufficient relative concentration of the antistatic agent, leading to substandard static dissipation performance. Conversely, simply increasing the concentration of the antistatic agent to improve performance would severely degrade the film's mechanical properties, making it brittle and easily torn, while also reducing its processing fluidity, causing production difficulties. To achieve comprehensive performance, multiple additives were often incorporated into a single layer, which not only easily caused interference between materials but also required the use of large quantities of expensive permanent antistatic agents to meet surface resistance requirements, resulting in high raw material costs. Furthermore, the antistatic agent in the single-layer structure was directly exposed to the environment and was prone to failure after surface wear or migration, leading to a short antistatic lifespan.

[0004] Therefore, how to provide a modular extrusion processing device for multilayer co-extruded antistatic films is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a modular extrusion processing device for multilayer co-extruded antistatic films to solve the problems mentioned in the background art.

[0006] To achieve this objective, the present invention adopts the following technical solution: A modular extrusion processing device for multilayer co-extruded antistatic films includes a base frame and multiple protective strips. An extrusion die is fixedly mounted on the top of the base frame, and a pad is fixedly connected to the top of the base frame. Material distribution blocks are fixedly connected to both sides of the extrusion die, and material distribution cylinders are fixedly connected to opposite sides of the two material distribution blocks. A valve is fixedly mounted on the top of the material distribution cylinder. One of the protective strips is fixedly connected to the outer surface of the material distribution cylinder through a material conveying pipe, and the other two protective strips are fixedly connected to the two sides of the extrusion die near the top.

[0007] In use, the material inside one of the protective strips enters the inside of the distribution cylinder. The valve on the distribution cylinder is opened, and the material inside the distribution cylinder enters the bottom layer of the extrusion die through the distribution block for extrusion. The material inside the other two protective strips is extruded through the top layer of the extrusion die. Finally, the two layers of film are extruded through the extrusion die to the top of the pad. If more layers of material are needed, protective strips can be added in the middle of the extrusion die.

[0008] Furthermore, a material conveying tank is fixedly installed on the top of each of the protective strips, and a diagonal brace is fixedly connected to the bottom of each of the protective strips, the diagonal brace being fixedly connected to the outer surface of the base frame.

[0009] The diagonal brace is used to support the protective strip for conveying materials, and the material conveying tank is used to input materials into the interior of the protective strip.

[0010] Furthermore, each of the conveying tanks has a feeding plate fixedly connected to both outer surfaces, and each of the conveying tanks has two movable rods fixedly installed on its top.

[0011] Furthermore, a semi-circular cover is movably connected to the outer surface of the movable rod; a servo motor is fixedly installed on the top of the conveying tank.

[0012] The material enters the inside of the conveying tank through the feeding plate, and the movable semi-circular cover closes the top of the conveying tank to prevent other impacts on the internal material.

[0013] Furthermore, the output shaft of the servo motor is fixedly connected to a stirring shaft, the bottom of the stirring shaft is fixedly connected to a connecting plate, and the bottom of the connecting plate is fixedly connected to a first spiral blade.

[0014] Furthermore, a stepper motor is fixedly installed on one side of each of the protective strips, and the output shaft of the stepper motor is fixedly connected to a second helical blade; a hollow column is provided inside the protective strip, and the second helical blade moves within the corresponding hollow column.

[0015] Furthermore, each of the protective strips is equipped with a filter box inside, a metering pump is fixedly installed on the top of the filter box, and a feeding tank is fixedly installed on one side of the filter box.

[0016] The beneficial effects of this utility model are as follows: In use, the material inside one of the protective strips enters the distribution cylinder. The valve on the distribution cylinder is opened, and the material inside the distribution cylinder passes through the distribution block and enters the bottom layer of the extrusion die for extrusion. The material inside the other two protective strips is extruded through the top layer of the extrusion die. Finally, the two layers of film are extruded through the extrusion die to the top of the pad. If more layers of material are needed, protective strips can be added in the middle of the extrusion die. This modular extrusion processing device has a high degree of modularity and strong applicability. The multi-layer co-extruded antistatic film produced can have multiple functions such as long-lasting antistatic properties, temperature resistance, and wear resistance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a modular extrusion processing device for multilayer co-extruded antistatic films according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of a modular extrusion processing device for multilayer co-extruded antistatic film of this utility model at the second angle.

[0019] Figure 3 This is a schematic diagram of the modular extrusion processing device for multilayer co-extruded antistatic film of this utility model at the third angle.

[0020] Figure 4 This is a cross-sectional view of the conveying tank.

[0021] In the diagram: 101-Base frame; 102-Diagonal brace; 103-Protective strip; 104-Feeding tank; 105-Discharge plate; 106-Moving rod; 107-Semi-circular cover; 108-Servo motor; 109-Stirring shaft; 110-Connecting plate; 111-First spiral blade; 112-Stepper motor; 113-Hollow column; 114-Second spiral blade; 115-Filter box; 116-Metering pump; 117-Feeding tank; 118-Distribution cylinder; 119-Valve; 120-Distribution block; 121-Extrusion die; 122-Pad plate. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 4As shown, a modular extrusion processing device for multilayer co-extruded antistatic films includes a base frame 101 and multiple protective strips 103. An extrusion die 121 is fixedly mounted on the top of the base frame 101, and a pad 122 is fixedly connected to the top of the base frame 101. Distribution blocks 120 are fixedly connected to both sides of the extrusion die 121, and distribution cylinders 118 are fixedly connected to opposite sides of the two distribution blocks 120. A valve 119 is fixedly mounted on the top of the distribution cylinder 118. One of the protective strips 103 is fixedly connected to the outer surface of the distribution cylinder 118 via a conveying pipe. The other two protective strips 103... 03 is fixedly connected to both sides near the top of the extrusion die 121. The material inside one of the protective strips 103 enters the inside of the distribution cylinder 118. The distribution cylinder 118 is opened through the valve 119. The material inside the distribution cylinder 118 enters the bottom layer of the extrusion die 121 through the distribution block 120 for extrusion. The material inside the other two protective strips 103 is extruded through the top layer of the extrusion die 121. Finally, the two layers of film are extruded through the extrusion die 121 to the top of the pad 122. If more layers of material are needed, protective strips 103 can be added in the middle part of the extrusion die 121.

[0024] In this embodiment, reference Figures 1 to 4 As shown, a material conveying tank 104 is fixedly installed on the top of each protective strip 103, and a diagonal brace 102 is fixedly connected to the bottom of each protective strip 103. The diagonal brace 102 is fixedly connected to the outer surface of the base frame 101 and is used to support the protective strip 103 for conveying materials. The material conveying tank 104 is used to input materials into the interior of the protective strip 103.

[0025] In this embodiment, reference Figures 1 to 4 As shown, each conveying tank 104 has a feeding plate 105 fixedly connected to both outer surfaces. Each conveying tank 104 has two movable rods 106 fixedly installed on its top. The outer surface of each movable rod 106 is movably connected to a semi-circular cover 107. A servo motor 108 is fixedly installed on the top of the conveying tank 104. The material enters the interior of the conveying tank 104 through the feeding plate 105. The movable semi-circular cover 107 closes the top of the conveying tank 104 to prevent other influences on the internal material.

[0026] In this embodiment, reference Figures 1 to 4As shown, the output shaft of each servo motor 108 is fixedly connected to a stirring shaft 109, the bottom of which is fixedly connected to a connecting plate 110, and the bottom of which is fixedly connected to a first spiral blade 111; a stepper motor 112 is fixedly installed on one side of the protective strip 103, and the output shaft of the stepper motor 112 is fixedly connected to a second spiral blade 114; a hollow column 113 is provided inside the protective strip 103, and the second spiral blade 114 is movably disposed inside the hollow column 113. In use, the servo motor 108 is started by an external power source. The output shaft of the servo motor 108 drives the stirring shaft 109 to rotate. The rotation of the stirring shaft 109 stirs and transports the material inside the conveying tank 104 downward. At the same time, the connecting plate 110 drives the first spiral blade 111 to rotate, causing the first spiral blade 111 to transport the material downward in batches to avoid blockage. The stepper motor 112 is started by an external power source. The output shaft of the stepper motor 112 drives the second spiral blade 114 to rotate. The rotation of the second spiral blade 114 causes the material coming down from the first spiral blade 111 to enter the filter box 115 in batches.

[0027] In this embodiment, reference Figures 1 to 4 As shown, each protective strip 103 is equipped with a filter box 115 inside. A metering pump 116 is fixedly installed on the top of the filter box 115, and a feeding tank 117 is fixedly installed on one side of the filter box 115. Impurities are removed by the filter box 115, and then the material is accurately fed by the metering pump 116 and enters the interior of the distribution cylinder 118 through the feeding tank 117.

[0028] This utility model discloses a modular extrusion processing device for multilayer co-extruded antistatic films. In use, different materials are pre-positioned and placed on the outer surface of the corresponding feeding plate 105. The feeding plate 105 feeds the material into the conveying tank 104. Then, the movable semi-circular cover 107 closes the top of the conveying tank 104 to prevent other interference during material transport. A servo motor 108 is started by an external power source. The output shaft of the servo motor 108 drives the stirring shaft 109 to rotate. The rotation of the stirring shaft 109 stirs the material inside the conveying tank 104 and transports it downwards. The connecting plate 110 drives the first spiral blade 111 to rotate, causing the first spiral blade 111 to transport the material downwards in batches, avoiding blockage. A stepper motor 112 is started by an external power source. The output shaft of the stepper motor 112 drives the second spiral blade 114 to rotate. The rotation of 114 causes the material coming down from the first spiral blade 111 to enter the filter box 115 in batches to remove impurities. Then, under the action of the metering pump 116, it is precisely fed and enters the interior of the distribution cylinder 118 through the feeding tank 117. The distribution cylinder 118 is opened by the valve 119, and the material inside the distribution cylinder 118 enters the bottom layer of the extrusion die 121 through the distribution block 120 for extrusion. The material inside the other two protective strips 103 is extruded through the top layer of the extrusion die 121. Finally, the two layers of film are extruded through the extrusion die 121 to the top of the pad 122. If more layers of material are needed, protective strips 103 can be added in the middle part of the extrusion die 121. This makes it easier to use various materials and wrap the outer layer of antistatic film. This modular extrusion processing device has a high degree of modularity and strong applicability. The multi-layer co-extruded antistatic film can have multiple functions such as long-lasting antistatic, temperature resistance, and wear resistance.

[0029] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A modular extrusion processing device for multilayer co-extruded antistatic films, characterized in that, The device includes a base frame (101) and multiple protective strips (103). An extrusion die (121) is fixedly installed on the top of the base frame (101). A pad (122) is fixedly connected to the top of the base frame (101). Material distribution blocks (120) are fixedly connected to both sides of the extrusion die (121). A material distribution cylinder (118) is fixedly connected to the opposite side of the two material distribution blocks (120). A valve (119) is fixedly installed on the top of the material distribution cylinder (118). One of the protective strips (103) is fixedly connected to the outer surface of the material distribution cylinder (118) through a material conveying pipe. The other two protective strips (103) are fixedly connected to the two sides of the extrusion die (121) near the top.

2. The modular extrusion processing device for multilayer co-extruded antistatic film according to claim 1, characterized in that, Each of the protective strips (103) has a conveying tank (104) fixedly installed on its top, and each of the protective strips (103) has a diagonal brace (102) fixedly connected to its bottom. The diagonal brace (102) is fixedly connected to the outer surface of the base frame (101).

3. The modular extrusion processing device for multilayer co-extruded antistatic films according to claim 2, characterized in that, Each of the conveying tanks (104) has a feeding plate (105) fixedly connected to both outer surfaces, and each of the conveying tanks (104) has two movable rods (106) fixedly installed on the top.

4. The modular extrusion processing device for multilayer co-extruded antistatic films according to claim 3, characterized in that, A semi-circular cover (107) is movably connected to the outer surface of the movable rod (106); a servo motor (108) is fixedly installed on the top of the conveying tank (104).

5. A modular extrusion processing device for multilayer co-extruded antistatic films according to claim 4, characterized in that, The output shaft of the servo motor (108) is fixedly connected to the stirring shaft (109), the bottom of the stirring shaft (109) is fixedly connected to the connecting plate (110), and the bottom of the connecting plate (110) is fixedly connected to the first spiral blade (111).

6. A modular extrusion processing device for multilayer co-extruded antistatic films according to claim 5, characterized in that, Each of the protective strips (103) is fixedly mounted on one side with a stepper motor (112), and the output shaft of the stepper motor (112) is fixedly connected to a second helical blade (114); a hollow column (113) is provided inside the protective strip (103), and the second helical blade (114) moves within the corresponding hollow column (113).

7. A modular extrusion processing device for multilayer co-extruded antistatic films according to claim 6, characterized in that, Each of the protective strips (103) is equipped with a filter box (115), a metering pump (116) is fixedly installed on the top of the filter box (115), and a feeding tank (117) is fixedly installed on one side of the filter box (115).

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