Production line of antistatic flame-retardant composite protective film

Abstract

The invention discloses an antistatic flame-retardant composite protective film production line, and relates to the technical field of protective film production, the antistatic flame-retardant composite protective film production line comprises a bottom plate, an extrusion box is mounted above one side of the bottom plate through supporting legs, a heating system is arranged in the extrusion box, and one end in the extrusion box is rotatably connected with a feeding screw shaft; the other end in the extrusion box is rotationally connected with an extrusion screw shaft, center holes are formed in the center of the extrusion screw shaft and the center of the feeding screw shaft, and a stirring shaft is arranged in the middle of the extrusion box. Through the arrangement of the discharging grooves and the adjusting inserting strips, the discharging amount of each discharging pipe can be independently adjusted according to needs in the using process, then the discharging proportion can be adjusted according to needs, automatic proportioning discharging can be achieved, meanwhile, waste can be collected through the arranged material returning assembly in the using process, and the discharging efficiency is improved. And a certain amount of materials are collected and treated, and then the materials are conveyed into the extrusion box to complete material returning, so that manual participation is not needed during material returning.

Description

Technical Field

[0001] The invention relates to the technical field of protective film production, in particular to a production line for an anti-static and flame-retardant composite protective film. Background Art

[0002] Protective film is a kind of protective film material, which is often used to protect some important equipment. In the production of protective film, it is often necessary to produce film materials with different characteristics according to needs. Anti-static flame retardant composite protective film is a kind of film material with anti-static ability and good flame retardant properties. When producing anti-static flame retardant composite protective film, it is necessary to mix the materials with the required properties in a certain proportion, and then go through hot melting, extrusion, cooling, molding, cutting, winding and other processes to obtain the required protective film.

[0003] For example, the prior art CN 117818001B proposes a protective film continuous production and molding device and a method of using the device, the device includes a first mounting frame and a second mounting frame, the first mounting frame and the second mounting frame are arranged in a straight line, the top of the first mounting frame is fixedly connected to an extruder, and the device utilizes a cooling mechanism to improve the cooling effect of the film material and avoid stress generation.

[0004] However, when producing anti-static flame retardant composite protective film, it is necessary to proportion different raw materials according to the characteristics of the film material. The existing technology requires manual proportioning of the raw materials during proportioning, which is very cumbersome. At the same time, in order to ensure the flatness of the edge of the film material, the film material needs to be trimmed after forming. The existing trimming device usually returns the waste generated after trimming and cutting the protective film. The labor intensity of the workers who manually return the waste is high, and the waste film is directly mixed with the raw materials, which easily causes the feed channel to be blocked. In response to the above problems, we provide a production line for anti-static flame retardant composite protective film to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a production line for an anti-static and flame-retardant composite protective film to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A production line for an anti-static flame-retardant composite protective film, comprising a bottom plate, an extrusion box is installed on one side of the bottom plate by using legs, a heating system is arranged inside the extrusion box, a feeding screw shaft is rotatably connected to one end of the extrusion box, an extrusion screw shaft is rotatably connected to the other end of the extrusion box, a center hole is opened in the center of the extrusion screw shaft and the feeding screw shaft, a stirring shaft is arranged in the middle of the extrusion box, the stirring shaft is rotatably connected to the center hole, a plurality of stirring rods are fixedly connected to the stirring shaft at a position inside the extrusion box, and a differential rotation drive is arranged on the extrusion box. A driving mechanism, wherein an extrusion die is provided at one end of the extrusion box, a premixing bin is connected to one side of the upper end of the extrusion box, a feeding assembly for adding raw materials in a specific proportion is provided at the upper end of the premixing bin, a frame is fixedly connected to the other side of the upper end surface of the bottom plate, a plurality of guide rollers are provided between the frames, a cooling assembly for cooling the film is provided at a position of the upper end surface of the bottom plate below the extrusion die, a cutting assembly for cutting the protective film is provided at the upper end of the frame, a returning assembly for returning the cut waste material is also provided on the bottom plate, and a film collecting assembly for collecting the film is provided at the end of the bottom plate away from the extrusion box.

[0007] As a further solution of the present invention: the driving mechanism includes a motor seat, which is installed at one end of the extrusion box close to the premixing bin, and a driving motor is installed on the motor seat. A rotating shaft is rotatably connected to one side of the extrusion box, and the output end of the driving motor is connected to the rotating shaft. Both ends of the rotating shaft are fixedly connected with a third gear, and a fourth gear is installed on the connecting shaft of the feed screw shaft and the extrusion screw shaft away from the stirring rod end, and the third gear is meshed with the fourth gear. The second gear is fixedly connected to the end of the stirring shaft close to the driving motor, and a first gear is also fixedly connected to one end of the rotating shaft, and the first gear is meshed with the second gear. The pitch circle diameter of the first gear is larger than the pitch circle diameter of the second gear, and the pitch circle diameter of the fourth gear is larger than the pitch circle diameter of the third gear.

[0008] As a further solution of the present invention: the feeding assembly includes a feeding pipe, which is respectively installed at the positions on both sides of the premixing bin, a feeding barrel is provided at the upper end of the feeding pipe, a hopper is installed at the upper end of the feeding pipe, a feeding wheel is rotatably connected inside the feeding barrel, a number of evenly distributed feeding troughs are opened inside the feeding wheel, a hexagonal shaft is fixedly connected between the two feeding wheels on the same side, a sliding sleeve is slidably connected to the position of the hexagonal shaft near the feeding wheel, an adjustment strip matching the feeding trough is fixedly connected to the sliding sleeve, a second locking knob for fixing the position of the sliding sleeve is also provided on the sliding sleeve, a transmission is installed on one side of the premixing bin, a transmission pulley is installed at the corresponding end of the transmission input shaft and the rotating shaft, a transmission belt is installed between the two transmission pulleys, a horizontal shaft is connected to the output shaft of the transmission, a synchronous pulley is installed at the end position of the horizontal shaft and the hexagonal shaft, a synchronous belt is provided between the synchronous pulley on the horizontal shaft and the synchronous pulley on the hexagonal shaft, and a premixing assembly for premixing raw materials is provided inside the premixing bin.

[0009] As a further solution of the present invention: the premixing assembly includes a premixing shaft, which is rotatably connected to the inside of the premixing bin, and a plurality of premixing plates are fixedly connected to the premixing shaft, a spiral paddle is installed at the lower end of the premixing shaft, and the ends of the premixing shaft opposite to the horizontal shaft are fixedly connected to bevel gears, and the two bevel gears are meshed with each other.

[0010] As a further scheme of the present invention: the cooling assembly includes a mounting frame, which is fixedly connected to the positions on both sides of the base plate, three cooling rollers are arranged between the two mounting frames, both ends of the cooling rollers are fixedly connected with hollow shaft heads, a number of flow channels are opened in the cooling rollers, and the two ends of the flow channels are respectively connected with the hollow shaft heads, a cooling box is provided at a position on the upper end surface of the base plate below the extrusion box, a delivery pump is provided on one side of the cooling box, the input end of the delivery pump is connected with the bottom of the cooling box, a liquid inlet pipe is provided at the output end of the delivery pump, a return pipe is also provided at the end of the cooling box away from the delivery pump, the return pipe and the liquid inlet pipe are respectively connected with the hollow shaft heads by a rotating joint, a refrigeration system for cooling the circulating liquid is also provided on the cooling box, and the evaporator of the refrigeration system is arranged inside the cooling box, a side frame for supporting the return pipe and the liquid inlet pipe is provided on the mounting frame, and a rotating assembly for driving the cooling roller to rotate is provided on the side frame.

[0011] As a further solution of the present invention: the rotating assembly includes a sixth gear, the sixth gear is installed on a hollow shaft head at one end, a first motor is installed on the corresponding side frame, a fifth gear is installed at the output end of the first motor, and the fifth gear is meshed with the sixth gear.

[0012] As a further solution of the present invention: the cutting assembly includes a slide, which is installed on a guide roller near the middle of the top of the frame, and a slide block is slidably connected to the slide, and a cutting blade is installed at the lower end of the slide block. The upper end of the slide block is also provided with a first locking knob for fixing the position of the slide block.

[0013] As a further scheme of the present invention: the return material component includes a waste collection box, which is arranged between the frames on both sides, and the upper ends of the waste collection box are fixedly connected with inlet boxes on both sides, and two dial wheels are rotatably connected inside the inlet box, and a flexible layer is provided on the surface of the dial wheel, and a seventh gear is installed at one end of the connecting shaft of the dial wheel passing through the inlet box, and the two seventh gears are meshed with each other. A third motor for driving the dial wheel is also provided on one side of the inlet box, and side frames are also fixedly connected to the frames on both sides, and a gravity sensor is installed between the side frame and the waste collection box, a discharge valve is provided on the discharge port of the waste collection box, and a fourth motor is installed on the upper end of the waste collection box, and the output shaft of the fourth motor is extended into the waste collection box, and a plurality of cutting blades are installed on the output shaft of the fourth motor, and a return assembly for returning the collected waste to the inside of the extrusion box is also provided on the bottom plate.

[0014] As a further solution of the present invention: the reverse conveying component includes a first conveying pipe, which is installed on the upper end of the base plate by using a bracket, and a feed port is provided at one end of the first conveying pipe, and the feed port is opposite to the discharge port of the waste collection box and does not contact the discharge port of the waste collection box, and the end of the first conveying pipe away from the waste collection box is fixedly connected to the second conveying pipe, the upper end of the second conveying pipe is connected to the inside of the extrusion box, and the second conveying pipe and the first conveying pipe are both provided with spiral conveying rods, and a second motor for driving the spiral conveying rod is installed at the end of the first conveying pipe away from the second conveying pipe and the lower end of the second conveying pipe.

[0015] As a further solution of the present invention: a pressure sensor for detecting the pressure of the liquid inside the extrusion box is also provided inside the extrusion box.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can adjust the discharge amount of each discharge pipe individually according to needs during use through the provided discharge trough and adjustment strip, and then can adjust the discharge ratio according to needs, so as to realize automatic proportioning and discharge. At the same time, the provided return component can collect waste materials during use, and process them after collecting a certain amount, and then transport them to the inside of the extrusion box to complete the return of materials, so that no manual participation is required during the return of materials, and the processed waste film will not block the conveying path. At the same time, the differential structure can make the stirring rod rotate at high speed to further mix the melted raw materials, thereby ensuring the mixing effect and avoiding uneven problems.

[0017] 2. The pressure sensor provided in the present invention can monitor the pressure of the liquid inside the extrusion box during operation. When the pressure exceeds the set value, the speed can be adjusted through the transmission to reduce the rotation speed of the horizontal axis and slow down the feeding speed, thereby avoiding the problem of excessive pressure inside the extrusion box caused by the increase of waste inside the extrusion box when the waste is returned. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of the extrusion box in the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the driving component in the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the feed assembly in the present invention.

[0022] Figure 5 It is a structural schematic diagram of the unloading wheel in the present invention.

[0023] Figure 6 It is a schematic diagram of the internal structure of the premixing bin in the present invention.

[0024] Figure 7 It is a schematic diagram of the structure of the cooling assembly in the present invention.

[0025] Figure 8 It is a schematic diagram of the structure inside the cooling roller in the present invention.

[0026] Fig. 9 It is a schematic diagram of the structure of the cutting assembly in the present invention.

[0027] Fig.10 It is a schematic diagram of the structure of the recycling component in the present invention.

[0028] Fig.11 It is a schematic diagram of the structure inside the waste collection box of the present invention.

[0029] Fig.12 It is a schematic diagram of the structure of the return component in the present invention.

[0030] Among them: 1. Bottom plate; 2. Driving mechanism; 3. Cooling assembly; 4. Cutting assembly; 5. Feed assembly; 6. Return assembly; 7. Extrusion box; 8. Premixing bin; 9. Guide roller; 10. Frame; 11. Extrusion die head; 12. Extrusion screw shaft; 13. Stirring rod; 14. Stirring shaft; 15. Feed screw shaft; 16. Film collection assembly; 17. Heating system.

[0031] 201, driving motor; 202, first gear; 203, second gear; 204, motor base; 205, rotating shaft; 206, third gear; 207, fourth gear; 301, hollow shaft head; 302, cooling roller; 303, mounting frame; 304, rotary joint; 305, side frame; 306, liquid inlet pipe; 307, delivery pump; 308, cooling box; 309, return pipe; 310, refrigeration system; 311, fifth gear; 312, first motor; 313, sixth gear; 401, slide; 402, first locking knob; 403, sliding block; 404, cutting blade; 501, hopper; 502, discharge barrel; 503, hexagonal shaft; 504, synchronous pulley; 505, discharge pipe; 506, synchronous belt; 507, transmission belt; 508, transmission pulley; 509, transmission; 510, horizontal shaft; 511, second locking knob; 512, sliding sleeve; 513, adjustment strip; 514, discharge chute; 515, discharge wheel; 516, bevel gear; 517, spiral paddle; 518, premixing shaft; 519, premixing sheet; 601, waste collection box; 603, first conveying pipe; 604, feed port; 605, second motor; 606, discharge valve; 607, gravity sensor; 608, side frame; 609, third motor; 610, inlet box; 611, fourth motor; 612, second conveying pipe; 613, pressure sensor; 614, cutting blade; 615, seventh gear; 616, dial wheel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 12In an embodiment of the present invention, a production line for an anti-static flame-retardant composite protective film includes a base plate 1, an extrusion box 7 is installed on the upper side of one side of the base plate 1 by using a support leg, a heating system 17 is arranged inside the extrusion box 7, a feeding screw shaft 15 is rotatably connected to one end of the extrusion box 7, and an extrusion screw shaft 12 is rotatably connected to the other end of the extrusion box 7, and a center hole is opened in the center of the extrusion screw shaft 12 and the feeding screw shaft 15, a stirring shaft 14 is arranged in the middle position of the extrusion box 7, the stirring shaft 14 is rotatably connected to the center hole, and a plurality of stirring rods 13 are fixedly connected to the position of the stirring shaft 14 inside the extrusion box 7, and a driving mechanism 2 for driving the stirring shaft 14, the extrusion screw shaft 12 and the feeding screw shaft 15 to rotate at a differential speed is arranged on the extrusion box 7, and the stirring shaft 14 is rotatably connected to the center hole of the extrusion screw shaft 12 and the feeding screw shaft 15, so that the stirring shaft 14, the extrusion screw shaft 12 and the feeding screw shaft 15 can all rotate without interfering with each other, thereby forming a speed difference under the action of the driving mechanism 2.

[0034] The driving mechanism 2 includes a motor base 204, which is installed at one end of the extrusion box 7 close to the premixing bin 8. A driving motor 201 is installed on the motor base 204. A rotating shaft 205 is rotatably connected to one side of the extrusion box 7. The output end of the driving motor 201 is connected to the rotating shaft 205. Both ends of the rotating shaft 205 are fixedly connected to a third gear 206. A fourth gear 207 is installed on the connecting shafts of the feeding screw shaft 15 and the extrusion screw shaft 12 away from the stirring rod 13. The third gear 206 is meshed with the fourth gear 207. The end of the stirring shaft 14 close to the driving motor 201 is fixedly connected to the second gear 203. One end of the rotating shaft 205 is also fixedly connected to a first gear 202, and the first gear 202 is meshed with the second gear 203. The pitch circle diameter of the first gear 202 is greater than the pitch circle diameter of the second gear 203, and the pitch circle diameter of the fourth gear 207 is greater than the pitch circle diameter of the third gear 206.

[0035] During operation, the driving motor 201 drives the rotating shaft 205 to rotate, and the rotation of the rotating shaft 205 drives the third gear 206 to rotate. The rotation of the third gear 206 can drive the fourth gear 207 at both ends, and the fourth gear 207 can drive the feeding screw shaft 15 and the extrusion screw shaft to rotate. At the same time, the rotation of the rotating shaft 205 can also drive the first gear 202 to rotate, and the rotation of the first gear 202 can drive the second gear 203 to rotate, and the rotation of the second gear 203 drives the stirring shaft 14 to rotate. Since the pitch circle diameter of the first gear 202 is larger than the pitch circle diameter of the second gear 203, and the pitch circle diameter of the fourth gear 207 is larger than the pitch circle diameter of the third gear 206, the feeding screw shaft 15 and the extrusion screw shaft 12 run at a low speed to ensure the stability of the liquid feeding, and the stirring shaft 14 drives the stirring rod 13 to run at a high speed, thereby ensuring that the raw materials are completely mixed here, thereby ensuring the subsequent molding quality of the protective film.

[0036] An extrusion die head 11 is provided at one end of the extrusion box 7, and a premixing bin 8 is connected to one side of the upper end of the extrusion box 7. A feed assembly 5 for adding raw materials in a specific proportion is provided at the upper end of the premixing bin 8. The feed assembly 5 includes a discharge pipe 505, and the discharge pipes 505 are respectively installed at the positions on both sides of the premixing bin 8. A discharge barrel 502 is provided at the upper end of the discharge pipe 505, and a hopper 501 is installed at the upper end of the discharge pipe 505. A discharge wheel 515 is rotatably connected inside the discharge barrel 502, and a plurality of evenly distributed discharge troughs 505 are provided inside the discharge wheel 515. 14, a hexagonal shaft 503 is fixedly connected between the two unloading wheels 515 on the same side, and a sliding sleeve 512 is slidably connected to the position of the hexagonal shaft 503 near the unloading wheel 515, and an adjustment plug 513 that cooperates with the unloading trough 514 is fixedly connected to the sliding sleeve 512. The sliding sleeve 512 is also provided with a second locking knob 511 for fixing the position of the sliding sleeve 512. A transmission 509 is installed on one side of the premixing bin 8, and a transmission pulley 508 is installed on the corresponding end of the input shaft of the transmission 509 and the rotating shaft 205. A transmission pulley 508 is installed between the two transmission pulleys 508. There is a transmission belt 507, a horizontal shaft 510 is connected to the output shaft of the transmission 509, synchronous pulleys 504 are installed at the ends of the horizontal shaft 510 and the hexagonal shaft 503, and a synchronous belt 506 is arranged between the synchronous pulley 504 on the horizontal shaft 510 and the synchronous pulley 504 on the hexagonal shaft 503, and a premixing component for premixing raw materials is arranged inside the premixing bin 8; when working, the rotation of the rotating shaft 205 can drive the transmission belt 507 and the transmission pulley 508 to operate, and then the power is transmitted to the horizontal shaft 510 through the transmission 509, The rotation of the horizontal shaft 510 can drive the synchronous belt 506 and the synchronous pulley 504 to operate, and then drive the hexagonal shaft 503 to rotate. The rotation of the hexagonal shaft 503 can drive the discharge wheel 515 to rotate. The rotation of the discharge wheel 515 can discharge the material from the hopper 501 to the discharge pipe 505. At the same time, the size of the discharge trough 514 can be adjusted separately by the adjustment strip 513, so that the discharge ratio of various materials can be adjusted according to needs during use. After the ratio is adjusted, the material discharged by the hexagonal shaft 503 each time it rotates is a specific ratio, which ensures the accuracy of the ingredients.

[0037] The premixing assembly includes a premixing shaft 518, which is rotatably connected to the inside of the premixing bin 8. A plurality of premixing pieces 519 are fixedly connected to the premixing shaft 518. A spiral paddle 517 is installed at the lower end of the premixing shaft 518. The ends opposite to the premixing shaft 518 and the horizontal shaft 510 are fixedly connected to bevel gears 516. The two bevel gears 516 are meshed with each other. During operation, the bevel gear 516 drives the premixing shaft 518 to rotate. The rotation of the premixing shaft 518 can drive the premixing pieces 519 and the spiral paddles 517 to rotate. The rotation of the premixing pieces 519 can preliminarily premix the incoming raw materials, and then transport them into the extrusion box 7 through the spiral paddles 517.

[0038] The other side of the upper end surface of the bottom plate 1 is fixedly connected to a frame 10, and a plurality of guide rollers 9 are arranged between the frames 10. The upper end surface of the bottom plate 1 is located below the extrusion die head 11 and is provided with a cooling assembly 3 for cooling the film. The cooling assembly 3 includes a mounting frame 303, and the mounting frames 303 are respectively fixedly connected to the positions on both sides of the bottom plate 1. Three cooling rollers 302 are arranged between the two mounting frames 303. Both ends of the cooling rollers 302 are fixedly connected with hollow shaft heads 301. A plurality of flow channels are opened in the cooling rollers 302, and the two ends of the flow channels are respectively connected with the hollow shaft heads 301. A cooling box 308 is provided at a position below the extrusion box 7 on the upper end surface of the bottom plate 1. A delivery pump 307 is provided on one side of the cooling box 308. The input end of the delivery pump 307 is connected with the bottom of the cooling box 308, and the output end of the delivery pump 307 is provided with a liquid inlet pipe 306. A return pipe 309 is also provided at one end of the box 308 away from the delivery pump 307. The return pipe 309 and the liquid inlet pipe 306 are connected to the hollow shaft head 301 respectively by a rotating joint 304. The cooling box 308 is also provided with a refrigeration system 310 for cooling the circulating liquid. The evaporator of the refrigeration system 310 is arranged inside the cooling box 308. The mounting frame 303 is also provided with a side frame 305 for supporting the return pipe 309 and the liquid inlet pipe 306. The side frame 305 is provided with a rotating component for driving the cooling roller 302 to rotate; the rotating component includes a sixth gear 313, and the sixth gear 313 is installed on the hollow shaft head 301 at one end. The corresponding side frame 305 is installed with a first motor 312, and the output end of the first motor 312 is installed with a fifth gear 311, and the fifth gear 311 is meshed with the sixth gear 313.

[0039] During operation, the first motor 312 drives the fifth gear 311 to rotate. The rotation of the fifth gear 311 can drive the sixth gear 313 to rotate. The rotation of the sixth gear 313 can drive the cooling roller 302 to rotate to guide the film material. During cooling, the delivery pump 307 will pump the coolant inside the cooling box 308 to the liquid inlet pipe 306, and then enter the flow channel inside the cooling roller 302 from the liquid inlet pipe 306 to keep the cooling roller 302 in a low temperature state. Then the coolant flows back to the inside of the cooling box 308 from the return pipe 309 to complete the cycle.

[0040] The upper end of the frame 10 is provided with a cutting component 4 for cutting the protective film, and the cutting component 4 includes a slide 401, and the slide 401 is installed on the guide roller 9 near the middle of the top of the frame 10. A sliding block 403 is slidably connected to the slide 401, and a cutting blade 404 is installed at the lower end of the sliding block 403. The upper end of the sliding block 403 is also provided with a first locking knob 402 for fixing the position of the sliding block 403; the edge of the film material can be cut by the provided cutting blade 404, and then the waste edge of the film material can be cut off, and the provided slidable sliding block 403 can adjust the position of the cutting blade 404 as needed, and the provided first locking knob 402 can be used to lock the position of the sliding block 403.

[0041] The bottom plate 1 is also provided with a recycling component 6 for recycling the cut waste materials, and the recycling component 6 includes a waste collection box 601, and the waste collection box 601 is arranged between the frames 10 on both sides. The upper ends of the waste collection box 601 are fixedly connected with inlet boxes 610 on both sides, and the inlet box 610 is internally rotatably connected with two dial wheels 616, and the surfaces of the dial wheels 616 are provided with a flexible layer. The ends of the connecting shafts of the dial wheels 616 passing through the inlet box 610 are both provided with seventh gears 615, and the two seventh gears 615 are meshed with each other. One side of the inlet box 610 is also provided with a third motor 609 for driving the dial wheels 616, and the frames 10 on both sides are also fixedly connected with side frames 608, and a gravity sensor 607 is installed between the side frames 608 and the waste collection box 601, and a discharge valve 606 is provided on the discharge port of the waste collection box 601. A fourth motor 611 is installed at the upper end of the waste collection box 601, and the output shaft of the fourth motor 611 extends into the waste collection box 601. A plurality of cutting blades 614 are installed on the output shaft of the fourth motor 611. The bottom plate 1 is also provided with a reverse conveying component for returning the collected waste to the inside of the extrusion box 7. During operation, the cut waste is guided into the inlet box 610, and the set dial wheel 616 can be rotated under the action of the third motor 609 and the seventh gear 615, so as to guide the cut waste edges into the waste collection box 601. When the gravity sensor 607 detects that the weight reaches the set value, the cutting blade 614 can be driven to rotate by the fourth motor 611. The cutting blade 614 rotates at high speed to cut the waste film into fragments, and then the discharge valve 606 is opened to return the waste to the inside of the extrusion box 7 through the reverse conveying component for recycling.

[0042] The reverse conveying assembly includes a first conveying pipe 603, which is mounted on the upper end of the bottom plate 1 by a bracket, and one end of the first conveying pipe 603 is provided with a feed port 604, which is opposite to the discharge port of the waste collection box 601 and does not contact the discharge port of the waste collection box 601, and one end of the first conveying pipe 603 away from the waste collection box 601 is fixedly connected to a second conveying pipe 612, and the upper end of the second conveying pipe 612 is connected to the inside of the extrusion box 7, and the second conveying pipe 612 and the first conveying pipe 603 are both provided with a spiral conveying rod, and the first conveying pipe A second motor 605 is installed at one end of the tube 603 away from the second conveying tube 612 and the lower end of the second conveying tube 612; a pressure sensor 613 for detecting the pressure of the material liquid inside the extrusion box 7 is also provided inside the extrusion box 7; when returning the material, the second motor 605 drives the spiral feeding rods inside the second conveying tube 612 and the first conveying tube 603 to rotate respectively, thereby conveying the waste material to the position of the feeding screw shaft 15 inside the extrusion box 7, and then conveying it into the mixing area through the feeding screw shaft 15 for mixing, thereby completing the recycling of the waste material.

[0043] A film collecting assembly 16 for collecting the film is disposed at one end of the bottom plate 1 away from the extrusion box 7 .

[0044] The working principle of the present invention is as follows: during operation, the required raw materials are added into the hopper 501 respectively, and then enter the premixing bin 8 through the discharge pipe 505. After entering, the premixing shaft 518 is driven to rotate by the bevel gear 516. The rotation of the premixing shaft 518 can drive the premixing piece 519 and the spiral paddle 517 to rotate. The rotation of the premixing piece 519 can preliminarily premix the entered raw materials, and then the raw materials are transported into the extrusion box 7 through the spiral paddle 517. When the entered raw materials are transported by the feed screw shaft 15, they are first heated and preliminarily melted, and then when they enter the stirring rod 13 area, they are stirred at high speed by the stirring rod 13, which ensures the mixing effect while improving the uniformity of heating. Then, the liquid in the stirring rod 13 area will be pushed to the extrusion screw shaft 12 area under the action of the subsequent incoming materials of the feed screw shaft 15, and then extruded by the extrusion screw shaft 12 to the extrusion die head 11 to form a film material. The film material is cooled by the cooling component 3, and then the waste edges are cut by the cutting component 4. The cut film material The feeding spiral shaft 15 is wound up, and the cut waste is guided into the inlet box 610. The set dial 616 can be rotated under the action of the third motor 609 and the seventh gear 615, so that the cut waste edges can be guided into the waste collection box 601. When the gravity sensor 607 detects that the weight reaches the set value, the fourth motor 611 can drive the cutting blade 614 to rotate. The cutting blade 614 rotates at a high speed to cut the waste film into pieces, and then the discharge valve 606 is opened to return the waste to the extrusion box 7 through the reverse feed component for feeding back. The set pressure sensor 613 can monitor the pressure of the material liquid inside the extrusion box 7 during operation. When the pressure exceeds the set value, the speed can be adjusted through the transmission 509 to reduce the rotation speed of the horizontal shaft 510 and slow down the feeding speed, thereby avoiding the problem of excessive pressure inside the extrusion box 7 and overloading of the drive motor 201 due to the increase of waste inside the extrusion box 7 when the waste is returned.

[0045] The coordination of various mechanism components in the present invention is controlled by a controller, which is a programmable controller (such as a PLC controller). The above actions can be achieved through simple programming by personnel in this technical field. The connection of the connecting circuits is a conventional means in this technical field and will not be described in detail here.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Although this specification is described in accordance with the implementation modes, not every implementation mode includes only one technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A production line for an anti-static flame-retardant composite protective film, comprising a base plate (1), an extrusion box (7) being mounted on one side of the base plate (1) by means of legs, a heating system (17) being arranged inside the extrusion box (7), characterized in that; One end of the extrusion box (7) is rotatably connected to a feed screw shaft (15), and the other end of the extrusion box (7) is rotatably connected to an extrusion screw shaft (12). The centers of the extrusion screw shaft (12) and the feed screw shaft (15) are both provided with a center hole. A stirring shaft (14) is provided in the middle of the extrusion box (7). The stirring shaft (14) is rotatably connected to the center hole. A plurality of stirring rods (13) are fixedly connected to the stirring shaft (14) located inside the extrusion box (7). A driving mechanism (2) for driving the stirring shaft (14), the extrusion screw shaft (12) and the feed screw shaft (15) to rotate at a differential speed is provided on the extrusion box (7). An extrusion die head (11) is provided at one end of the extrusion box (7). One side of the upper end of the extrusion box (7) is connected to a premixing bin (8), and a feeding assembly (5) for adding raw materials in a specific proportion is provided on the upper end of the premixing bin (8). The other side of the upper end surface of the bottom plate (1) is fixedly connected to a frame (10), and a plurality of guide rollers (9) are provided between the frames (10). A cooling assembly (3) for cooling the film is provided at a position below the extrusion die head (11) on the upper end surface of the bottom plate (1), and a cutting assembly (4) for cutting the protective film is provided on the upper end of the frame (10). A material recycling assembly (6) for recycling the cut waste is also provided on the bottom plate (1), and a film collecting assembly (16) for collecting the film is provided at one end of the bottom plate (1) away from the extrusion box (7).

2. The production line of an anti-static flame-retardant composite protective film according to claim 1, characterized in that: The driving mechanism (2) comprises a motor seat (204), the motor seat (204) being mounted on one end of the extrusion box (7) close to the premixing chamber (8), a driving motor (201) being mounted on the motor seat (204), a rotating shaft (205) being rotatably connected to one side of the extrusion box (7), an output end of the driving motor (201) being connected to the rotating shaft (205), both ends of the rotating shaft (205) being fixedly connected to a third gear (206), and a connecting shaft at one end of the feeding screw shaft (15) and the extrusion screw shaft (12) being away from the stirring rod (13). A fourth gear (207) is mounted on each of the agitator shafts (14), the third gear (206) meshing with the fourth gear (207), one end of the agitator shaft (14) close to the drive motor (201) is fixedly connected to the second gear (203), one end of the rotating shaft (205) is also fixedly connected to the first gear (202), the first gear (202) meshing with the second gear (203), the pitch circle diameter of the first gear (202) is greater than the pitch circle diameter of the second gear (203), and the pitch circle diameter of the fourth gear (207) is greater than the pitch circle diameter of the third gear (206).

3. The production line of an anti-static flame-retardant composite protective film according to claim 2, characterized in that: The feeding assembly (5) comprises a feeding tube (505), wherein the feeding tube (505) is respectively installed at positions on both sides of the premixing bin (8), a feeding barrel (502) is provided at the upper end of each feeding tube (505), a hopper (501) is installed at the upper end of each feeding tube (505), a feeding wheel (515) is rotatably connected inside each feeding barrel (502), a plurality of evenly distributed feeding troughs (514) are provided inside each feeding wheel (515), a hexagonal shaft (503) is fixedly connected between two feeding wheels (515) on the same side, a sliding sleeve (512) is slidably connected to the position of the hexagonal shaft (503) near the feeding wheel (515), an adjusting insert (513) matched with the feeding trough (514) is fixedly connected to the sliding sleeve (512), and the sliding sleeve (512) is fixedly connected to the adjusting insert (513) matched with the feeding trough (514), and the sliding sleeve (512) is 12) is also provided with a second locking knob (511) for fixing the position of the sliding sleeve (512), a transmission (509) is installed on one side of the premixing chamber (8), a transmission pulley (508) is installed on the input shaft of the transmission (509) and the corresponding end of the rotating shaft (205), a transmission belt (507) is installed between the two transmission pulleys (508), a horizontal shaft (510) is connected to the output shaft of the transmission (509), synchronous pulleys (504) are installed at the ends of the horizontal shaft (510) and the hexagonal shaft (503), a synchronous belt (506) is provided between the synchronous pulley (504) on the horizontal shaft (510) and the synchronous pulley (504) on the hexagonal shaft (503), and a premixing component for premixing raw materials is provided inside the premixing chamber (8).

4. The production line of the anti-static flame-retardant composite protective film according to claim 3 is characterized in that: The premixing assembly comprises a premixing shaft (518), the premixing shaft (518) being rotatably connected to the interior of the premixing bin (8), a plurality of premixing blades (519) being fixedly connected to the premixing shaft (518), a spiral paddle (517) being mounted at the lower end of the premixing shaft (518), and a bevel gear (516) being fixedly connected to the opposite end of the premixing shaft (518) and the horizontal shaft (510), the two bevel gears (516) being meshed with each other.

5. The production line of the anti-static flame-retardant composite protective film according to claim 1, characterized in that: The cooling assembly (3) comprises a mounting frame (303), the mounting frames (303) being fixedly connected to positions on both sides of the bottom plate (1), three cooling rollers (302) being arranged between the two mounting frames (303), both ends of the cooling rollers (302) being fixedly connected to hollow shaft heads (301), a plurality of flow channels being provided in the cooling rollers (302), both ends of the flow channels being connected to the hollow shaft heads (301), a cooling box (308) being provided at a position below the extrusion box (7) on the upper end surface of the bottom plate (1), a delivery pump (307) being provided on one side of the cooling box (308), an input end of the delivery pump (307) being connected to the bottom of the cooling box (308), and an output end of the delivery pump (307) being connected to the bottom of the cooling box (308). A liquid inlet pipe (306) is provided, and a return pipe (309) is also provided at one end of the cooling box (308) away from the delivery pump (307); the return pipe (309) and the liquid inlet pipe (306) are respectively connected to the hollow shaft head (301) by means of a rotary joint (304); a refrigeration system (310) for cooling the circulating liquid is also provided on the cooling box (308); an evaporator of the refrigeration system (310) is arranged inside the cooling box (308); a side frame (305) for supporting the return pipe (309) and the liquid inlet pipe (306) is also provided on the mounting frame (303); and a rotating assembly for driving the cooling roller (302) to rotate is provided on the side frame (305).

6. The production line of the anti-static flame-retardant composite protective film according to claim 5, characterized in that: The rotating assembly comprises a sixth gear (313), the sixth gear (313) being mounted on a hollow shaft head (301) at one end, a first motor (312) being mounted on the corresponding side frame (305), a fifth gear (311) being mounted on an output end of the first motor (312), and the fifth gear (311) being meshed with the sixth gear (313).

7. The production line of the anti-static flame-retardant composite protective film according to claim 1, characterized in that: The cutting assembly (4) comprises a slide (401), the slide (401) being mounted on a guide roller (9) near the middle of the top of the frame (10), a slide block (403) being slidably connected to the slide (401), a cutting blade (404) being mounted at the lower end of each slide block (403), and a first locking knob (402) for fixing the position of the slide block (403) being disposed at the upper end of each slide block (403).

8. The production line of the anti-static flame-retardant composite protective film according to claim 1, characterized in that: The material return assembly (6) comprises a waste collection box (601), the waste collection box (601) being arranged between the frames (10) on both sides, an inlet box (610) being fixedly connected to both sides of the upper end of the waste collection box (601), two dial wheels (616) being rotatably connected inside the inlet box (610), a surface of the dial wheel (616) being provided with a flexible layer, a seventh gear (615) being installed at one end of the connecting shaft of the dial wheel (616) passing through the inlet box (610), the two seventh gears (615) being meshed with each other, and a third motor (609) for driving the dial wheel (616) is also provided on one side of the inlet box (610). ), the frames (10) on both sides are also fixedly connected to side frames (608), a gravity sensor (607) is installed between the side frames (608) and the waste collection box (601), a discharge valve (606) is provided on the discharge port of the waste collection box (601), a fourth motor (611) is installed on the upper end of the waste collection box (601), the output shaft of the fourth motor (611) extends into the waste collection box (601), a plurality of cutting blades (614) are installed on the output shaft of the fourth motor (611), and a return component for returning the collected waste to the inside of the extrusion box (7) is also provided on the bottom plate (1).

9. The production line of the anti-static flame-retardant composite protective film according to claim 8, characterized in that: The reverse conveying assembly comprises a first conveying pipe (603), the first conveying pipe (603) being mounted on the upper end of the bottom plate (1) by means of a bracket, a feed port (604) being arranged at one end of the first conveying pipe (603), the feed port (604) being opposite to a discharge port of a waste collection box (601) and not in contact with the discharge port of the waste collection box (601), a second conveying pipe (612) being fixedly connected to one end of the first conveying pipe (603) away from the waste collection box (601), the upper end of the second conveying pipe (612) being in communication with the interior of the extrusion box (7), a screw conveying rod being arranged in both the second conveying pipe (612) and the first conveying pipe (603), and a second motor (605) for driving the screw conveying rod being installed at one end of the first conveying pipe (603) away from the second conveying pipe (612) and the lower end of the second conveying pipe (612).

10. The production line of the anti-static flame-retardant composite protective film according to claim 9, characterized in that: A pressure sensor (613) for detecting the pressure of the liquid inside the extrusion box (7) is also provided inside the extrusion box (7).

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