A preparation device and method for preparing PCR composite film

Abstract

The present invention discloses a preparation device and method for preparing a PCR composite film, and relates to the technical field of material film preparation. It includes a casting machine for preparing a PCR composite film, and the casting machine includes: a transmission component for transporting a fluid PCR composite film raw material, a feeding component installed at one end of the top of the transmission component, and used to add the fluid PCR composite film raw material, and a processing component installed at the middle end of the top of the transmission component, and used to make the fluid PCR composite film raw material on the top surface of the transmission component form a film, and based on the state inside the film, the PCR composite film is separated into two parts. The present invention effectively releases the gas in the raw material through uniform heating of the fluid heater, prevents the generation of bubbles inside the film body, and ensures the uniformity and stability of the film product. In addition, the processing component can intelligently separate the PCR composite film into two parts, which provides convenience for the subsequent winding work.

Description

Technical Field

[0001] The invention relates to the technical field of material film preparation, in particular to a preparation device and a method for preparing a PCR composite film. Background Art

[0002] PCR is a kind of recycled plastic particles, and PCR composite film is an innovative product used for packaging materials. In the prior art, PCR composite film is generally prepared by a cast film machine.

[0003] After searching, the Chinese invention patent publication number "CN109910279A" discloses a "nano antibacterial fruit and vegetable special cling film preparation equipment and process". The invention heats the plastic film raw material to a molten state, and then the molten slurry flows out through the gap between the two troughs. The molten slurry is then manually pulled and inflated using a blowing device to form a plastic film. Finally, the prepared plastic film is wound around a rolling shaft to complete the film preparation process. In actual use, the patented equipment is small in size and is convenient for preparing a small amount of experimental plastic film in a laboratory environment, and for testing and evaluating the performance of these films.

[0004] In addition, the Chinese invention patent publication number is CN116587571A, which discloses an environmentally friendly plastic film and its preparation method. The invention improves the degradability of specific stripes so that after the product's use cycle ends, the larger plastic film can be split into smaller parts through the combination of stripe structures during the recycling and processing stage. This process not only improves the convenience of waste recycling, but also increases the contact area with the soil due to the separation of the stripe structure when the product is recycled and landfilled, thereby further improving the degradation efficiency of the product and enhancing the environmental performance of the product.

[0005] However, in the actual process of preparing PCR composite membranes, the casting machine faces a challenge: when the fluid PCR composite membrane raw material is heated and evaporated to form a film, the gas released from the raw material will cause bubbles to form inside the membrane. This phenomenon will reduce the quality of the finished PCR composite membrane. Unfortunately, the two existing public membrane preparation methods and similar methods and devices have failed to effectively solve this bubble problem in actual applications, thus affecting the quality and application scope of the PCR composite membrane. Summary of the invention

[0006] The object of the present invention is to provide a preparation device and method for preparing a PCR composite membrane to solve the problems raised in the above background technology.

[0007] In the first aspect, to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a preparation device for preparing a PCR composite film, comprising: a casting machine for preparing a PCR composite film, the casting machine comprising:

[0008] A transmission component for transporting fluid PCR composite membrane raw materials;

[0009] A material adding component, installed at one end of the top of the transmission component, used for adding fluid PCR composite membrane raw materials;

[0010] A processing component is installed at the middle end of the top of the transmission component, and is used to make the fluid PCR composite membrane raw material on the top surface of the transmission component form a film, and based on the state inside the membrane, separate the PCR composite membrane into two parts;

[0011] A winding component, installed at the other end of the top of the transmission component, used to recover and wind the PCR composite film output by the processing component and in compliance with the standards;

[0012] The processing component includes:

[0013] The carrying shell is arranged at the middle end of the top of the transmission component, and the outside of the carrying shell is fixed to the rack frame on the outer surface of the transmission component;

[0014] An assembly plate is installed at the top of the housing, and fluid heaters are installed on both sides of the top of the assembly plate to evaporate and form the fluid PCR composite film raw material into a film shape by heating. A driving component is installed at the middle of the top of the assembly plate, and cutting components based on optical cutting of the PCR composite film and scanning components based on optical detection of the PCR composite film are respectively provided at both ends of the bottom of the assembly plate.

[0015] A separation extrusion head cover capable of adjusting the discharge angle is installed on the outside of the carrying shell near the winding component, and the winding component obtains the PCR composite film that meets the standards and is discharged from the separation extrusion head cover.

[0016] As a further preferred embodiment of the present technical solution, a servo motor is installed at one end of the outside of the separation extrusion head cover, and separation plates are respectively provided at the top and bottom of the separation extrusion head cover. The separation plate at the top of the separation extrusion head cover is fixed to the rotating shaft of the servo motor and is electrically connected to the scanning component. The separation plate fixed to the servo motor rotates and adjusts the gap between the outlet position of the separation extrusion head cover and the separation plate based on the PCR composite membrane information obtained by the scanning component, and the gap is used to output the separated PCR composite membrane.

[0017] As a further preferred embodiment of the present technical solution, the driving component is a bidirectional electric push rod, and two driving rods of the bidirectional electric push rod are respectively fixed with carrying arms, and the bottoms of the two carrying arms are both arranged at the bottom of the assembly plate and are both fixed with assembly frames;

[0018] The scanning component and the cutting component are fixed in two assembly frames respectively. The scanning component is a micro electronic scanner for scanning the surface of the PCR composite film. The cutting component includes a micro optical cutter and a light receiving plate. The micro optical cutter and the micro electronic scanner are electrically connected.

[0019] As a further preferred embodiment of the technical solution, sliding frames are fixed to both sides of the outer top of the carrying shell, a sliding shaft is inserted between the two sliding frames, and the two carrying arms are respectively inserted by the two sliding shafts.

[0020] As a further preferred embodiment of the present technical solution, bearing rollers are fixed at both ends of the carrying shell, a rotating motor is installed outside one of the bearing rollers, a base belt is sleeved between the two bearing rollers, the base belt is used to carry and transport the PCR composite film raw material, and a plurality of limit folding arms are fixed on both sides of the outer surface of the base belt, the limit folding arms are used to limit the position of the PCR composite film raw material on the base belt;

[0021] A guide inclined plate is fixed at a position of the carrying shell near the adding component, and the guide inclined plate is used to guide the fluid PCR composite membrane raw material to the surface of the base belt.

[0022] As a further preferred embodiment of the present technical solution, the transmission component includes: a frame, a control panel for controlling the casting machine is installed on one side of the outside of the frame frame, a plurality of load-bearing rollers are installed inside the frame frame, protruding frames are respectively installed on the tops of the two ends of the outside of the frame frame, and the insides of the protruding frames are rotatably connected with extension rollers, and the bottoms of the two ends of the outside of the frame frame are respectively fixed with brackets composed of extension arms, and transport rollers are rotatably connected in the brackets, and a casting belt arranged on the extension rollers and the load-bearing rollers is coiled between the two transport rollers, and the casting belt is used to carry fluid PCR composite membrane raw materials.

[0023] As a further preferred embodiment of the present technical solution, a driving motor is installed outside the transport roller close to the winding assembly, and a motor stand is installed at the base of the driving motor;

[0024] The winding assembly comprises:

[0025] The extension frame is installed on the top of the frame frame, and a removable winding roller is installed in the extension frame. A transmission wheel mounted on one side of the extension frame is installed at one end of the winding roller. The end of the drive motor shaft is fixed to the transport roller close to the winding assembly. A driving wheel matched with the transmission wheel is fixed in the middle of the shaft, and a belt is sleeved between the driving wheel and the transmission wheel.

[0026] Based on the rotation of the driving motor shaft, the winding roller recycles and rewinds the PCR composite film that meets the standards and is output by the processing component.

[0027] As a further preferred embodiment of the present technical solution, the feeding component comprises:

[0028] The liquid injection tank is used to guide the fluid PCR composite membrane raw materials. The top of the liquid injection tank is equipped with a liquid injection channel for adding fluid PCR composite membrane raw materials. The liquid injection tank is equipped with a scraping arm in contact with the surface of the transmission component near the processing component. The scraping arm is used to scrape the fluid PCR composite membrane raw materials placed on the surface of the transmission component flat.

[0029] In a second aspect, in order to improve the above technical solution, the present invention also proposes a method for preparing a PCR composite membrane using any one of the above preparation arrangements, which comprises:

[0030] Raw material injection and scraping: inject the fluid PCR composite membrane raw material into the injection tank through the injection channel, and use the scraping arm to evenly scrape the fluid raw material on the surface of the transmission component to make the raw material evenly distributed and flat;

[0031] Raw material conveying and stretching: driven by the driving motor, the fluid PCR composite film raw material is evenly stretched and coated on the casting belt by the synergistic action of the conveying roller and the stretching roller;

[0032] PCR composite film forming and processing: after being processed by the processing component, the fluid PCR composite film raw material undergoes heating, cooling and other processes in the processing component to form the required PCR composite film;

[0033] PCR composite membrane quality inspection: the micro-electronic scanner in the scanning component scans the membrane surface in detail and monitors the membrane thickness, uniformity and bubble parameters in real time;

[0034] PCR composite film cutting: based on the detection data obtained by the scanning component, the bidirectional electric push rod moves the position of the micro-optical cutter and allows the micro-optical cutter to cut the PCR composite film;

[0035] The PCR composite film is rolled up. Driven by the driving motor, the rolling roller rotates to roll up the PCR composite film that meets the standards.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The PCR composite film preparation equipment is based on the principle of cast film machine, which realizes the stable and continuous transportation of raw materials and ensures the production efficiency of fluid PCR composite film. The transmission component plays a key role in this process, ensuring that the raw materials are accurately transported to the subsequent processing links. The precise installation of the feeding component further ensures the continuous and stable addition of raw materials, thereby promoting film formation. The processing component is located at the top of the transmission component. Through the uniform heating of the fluid heater, the gas in the raw materials is effectively released, and the generation of bubbles inside the film body is prevented, ensuring the uniformity and stability of the film product. In addition, the processing component can intelligently separate the PCR composite film into two parts, which provides convenience for the subsequent winding work.

[0038] In practical applications, the equipment solves the problem of film quality inspection and cutting. Specifically, the scanning component uses optical principles to perform real-time inspection of the film, accurately identify defects such as bubbles and impurities in the film, and works in conjunction with the cutting component to ensure that the cutting component can be quickly started when a problem is detected. In addition, optical cutting technology is used to accurately remove unqualified film segments, thereby ensuring that each piece of PCR composite membrane meets the standard quality requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is an isometric view of the present invention;

[0040] Figure 2 It is a structural composition diagram of the tape casting machine of the present invention;

[0041] Figure 3 It is a main cross-sectional view of the present invention;

[0042] Figure 4 A structural diagram of the processing component of the present invention;

[0043] Figure 5 The internal structure diagram of the processing component of the present invention;

[0044] Figure 6 The present invention is a flowchart of the operating steps of the method.

[0045] In the figure: 1. frame; 2. casting belt; 3. extension arm; 4. control panel; 5. injection bin; 6. injection channel; 7. scraper arm; 8. processing assembly; 801. carrying arm; 802. sliding frame; 803. sliding shaft; 804. fluid heater; 805. two-way electric push rod; 806. carrying arm; 807. assembly plate; 808. carrying shell; 809. separation extrusion head cover; 810. servo motor; 811. separation plate; 812. assembly frame; 813. light collecting plate; 814. carrying roller; 815. base belt; 816. limit folding arm; 817. guide inclined plate; 818. micro optical cutting instrument; 9. extension frame; 10. winding roller; 11. belt; 12. transport roller; 13. motor table; 14. drive motor; 15. transmission wheel; 16. extension roller; 17. load-bearing roller. DETAILED DESCRIPTION

[0046] 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.

[0047] Before understanding the technical solution proposed in the present application, it should be clear that the PCR composite film is an innovative product used for packaging materials, which combines the advantages of PCR (Post-Consumer Recycled) and PIR (Post-Industrial Recycled) materials. Therefore, in the present application, the fluid PCR composite film raw material injected into the injection channel 6 is a mixed solution of PCR (Post-Consumer Recycled) and PIR (Post-Industrial Recycled) materials. In addition, it should be added that in actual production, the mixed solution may also contain specific additives to improve the physical and chemical properties of the composite film. For example, when the PCR composite film proposed in the present invention is used in the production and preparation of sanitary napkins, since the PCR composite film is used to seal the water-absorbing layer on the back of the sanitary napkin to prevent liquid penetration, a waterproofing agent and a reinforcing agent are also added to the mixed solution. These additives can improve the waterproof performance and mechanical strength of the composite film, ensuring that liquid penetration can be effectively prevented during use while maintaining the flexibility and durability of the material.

[0048] Specifically, the PCR composite membrane preparation equipment proposed by the present invention includes: a casting machine for preparing a PCR composite membrane, referring to Figure 1-Figure 5 It can be seen that the tape casting machine includes:

[0049] The transmission component is used to transport fluid PCR composite membrane raw materials.

[0050] refer to Figure 1-Figure 3 It can be seen that in the present invention, the transmission component includes:

[0051] The frame frame 1, a control panel 4 for controlling the casting machine is installed on one side of the outside of the frame frame 1. It should be noted that in the present invention, the control panel 4 specifically controls the driving motor 14, the servo motor 810, the rotating motor, the bidirectional electric push rod 805, the micro optical cutter 818 and the micro electronic scanner.

[0052] In addition, it should be noted that in the present invention, a plurality of load-bearing rollers 17 are installed inside the frame 1, and protruding frames are respectively installed on the tops of the two ends of the outside of the frame 1, and the inside of the protruding frames is rotatably connected with extension rollers 16, and the bottoms of the two ends of the outside of the frame 1 are respectively fixed with brackets composed of extension arms 3, and the inside of the brackets is rotatably connected with transport rollers 12, and a casting belt 2 arranged on the extension rollers 16 and the load-bearing rollers 17 is coiled between the two transport rollers 12, and the casting belt 2 is used to carry the fluid PCR composite membrane raw material.

[0053] It should be further supplemented that, in the present invention, a driving motor 14 is installed outside the transport roller 12 close to the winding assembly, and a motor stand 13 is installed on the base of the driving motor 14 .

[0054] refer to Figure 1-Figure 3 It can be seen that the casting machine also includes: a winding component.

[0055] It should be noted that the winding component is installed at the other end of the top of the transmission component, and is used to recover and wind up the PCR composite membrane that is output based on the processing component 8 and meets the standards.

[0056] Specifically, in the present invention, the winding assembly includes:

[0057] The extension frame 9 is installed on the top of the frame frame 1. A removable winding roller 10 is installed inside the extension frame 9. A transmission wheel 15 installed on one side of the extension frame 9 is installed at one end of the winding roller 10. The end of the shaft of the driving motor 14 is fixed to the transport roller 12 close to the winding assembly. A driving wheel matched with the transmission wheel 15 is fixed in the middle of the shaft. A belt 11 is sleeved between the driving wheel and the transmission wheel 15. Based on the rotation of the shaft of the driving motor 14, the winding roller 10 recycles and winds the PCR composite film that is output based on the processing assembly 8 and meets the standards.

[0058] It should be noted that when the winding assembly is in operation, the operating mechanism of the winding assembly is realized by the rotation of the drive motor 14. Specifically, the rotation of the drive motor 14 rotates the transmission wheel 15 through the driving wheel and the belt 11, so that the winding roller 10 can wind up the PCR composite film on the casting tape 2 at a certain speed and tension.

[0059] It should be noted that in actual use, the rotation speed and tension of the winding roller 10 can also be adjusted according to actual production needs to ensure that the wound PCR composite film is flat and wrinkle-free. Specifically, a tension adjustment device, i.e., a tensioner, is provided outside the winding assembly. The tensioner is covered on the surface of the winding roller 10 to automatically adjust the tension changes generated during the winding process to ensure the winding quality. It should be added that the entire winding process is monitored and controlled by the control panel 4 to ensure the continuity and stability of the winding process.

[0060] refer to Figure 1-Figure 5 It can be seen that the casting machine also includes: a feeding component.

[0061] refer to Figure 1-Figure 3 It can be seen that in the present invention, the material adding component is installed at one end of the top of the transmission component and is used to add fluid PCR composite membrane raw materials.

[0062] Specifically, in the present invention, the feed component includes:

[0063] The liquid injection tank 5 is used to guide the fluid PCR composite membrane raw material. The top of the liquid injection tank 5 is installed with a liquid injection channel 6 for adding fluid PCR composite membrane raw materials. The liquid injection tank 5 is installed with a scraper arm 7 in contact with the surface of the transmission component outside the position close to the processing component 8. The scraper arm 7 is used to scrape the fluid PCR composite membrane raw material placed on the surface of the transmission component.

[0064] It should be noted that the reference Figure 1-Figure 3 It can be seen that an inclined plate is installed inside the liquid injection bin 5, and the inclined plate is used to slow down the flow rate of the fluid PCR composite membrane raw material. In addition, the scraper arm 7 proposed in the present invention is based on the moving casting belt 2 to passively scrape the fluid PCR composite membrane raw material.

[0065] It should be added that, in actual use of the present invention, the injection channel 6 can also allow the operator to adjust the flow rate of the raw materials as needed to adapt to different production needs by installing a throttle valve in the injection channel 6. It should be noted that the operation of the throttle valve in the feeding assembly is monitored in real time by the control panel 4 to ensure the accuracy and continuity of the raw material addition. In this way, the casting machine can efficiently and stably produce high-quality PCR composite membranes.

[0066] refer to Figure 1-Figure 5 It can be seen that the casting machine also includes: a processing component 8.

[0067] It should be added that the processing component 8 is installed at the middle end of the top of the transmission component, which is used to make the fluid PCR composite membrane material on the top surface of the transmission component form a film, and based on the state inside the membrane, separate the PCR composite membrane into two parts.

[0068] Specifically, refer to Figure 1-Figure 5 It can be seen that the processing component 8 includes:

[0069] The carrying shell 808 is arranged in the middle section of the top of the transmission component, and the outside of the carrying shell 808 is fixed to the rack frame 1 on the outer surface of the transmission component. Specifically, a number of carrying arms 801 are installed between the outside of the rack frame 1 and the outside of the carrying shell 808, and an assembly plate 807 is installed at the top of the inside of the carrying shell 808. Fluid heaters 804 for evaporating the fluid PCR composite film raw material into a film shape by heating are respectively installed on both sides of the top of the assembly plate 807, and a driving component is installed in the middle section of the top of the assembly plate 807, and a cutting component based on optical cutting of the PCR composite film and a scanning component based on optical detection of the PCR composite film are respectively provided at both ends of the bottom of the assembly plate 807.

[0070] It should be noted that in the present invention, the scanning component is a micro electronic scanner for scanning the surface of the PCR composite film, and the cutting component includes a micro optical cutter 818 and a light receiving plate 813. The micro optical cutter 818 and the micro electronic scanner are electrically connected. Specifically, since the micro optical cutter 818 and the micro electronic scanner are both common devices in the optical field of the prior art, specifically in the present invention, since the specifications of the PCR composite film to be processed are different, the specifications of the micro optical cutter 818 and the micro electronic scanner will also change together. Therefore, the applicant does not make specific restrictions on the specific models of the micro optical cutter 818 and the micro electronic scanner.

[0071] In addition, it should be noted that in the present invention, a separation head cover 809 capable of adjusting the discharge angle is installed on the outside of the housing 808 near the winding component, and the winding component obtains the PCR composite film that meets the standards and is discharged from the separation head cover 809.

[0072] It should be added that in the present invention, a servo motor 810 is installed at one end of the outside of the separation extrusion head cover 809, and separation plates 811 are respectively provided at the top and bottom of the separation extrusion head cover 809. The separation plate 811 at the top of the separation extrusion head cover 809 is fixed to the rotating shaft of the servo motor 810 and is electrically connected to the scanning component. The separation plate 811 fixed to the servo motor 810 rotates based on the PCR composite membrane information obtained by the scanning component and adjusts the gap between the outlet position of the separation extrusion head cover 809 and the separation plate 811, and the gap is used to output the separated PCR composite membrane.

[0073] Specifically, in actual use of the present invention, the method of introducing the separated PCR composite membrane into the gap is accomplished by an electric guide shaft in the prior art. Two electric guide shafts are provided, which are respectively provided inside the separation extrusion head cover 809 and located on the top of the separation plate 811. The composite membrane is guided into the gap by hooking and rotating, ensuring that the PCR composite membrane can pass through the gap smoothly and be evenly separated. In addition, the surface of the electric guide shaft is designed with an appropriate friction coefficient to prevent the PCR composite membrane from slipping or being damaged during the guiding process.

[0074] Furthermore, it should be added that the electric guide shaft is an auxiliary device added in the actual use of the present application. After removing the electric guide shaft, the present invention first allows the separated PCR composite membrane to flow out from the bottom of the carrying shell 808 during actual use. After flowing out, the separated PCR composite membrane is manually passed through the separation extrusion head cover 809 and is wound around the surface of the winding roller 10 to complete the continuous collection of the separated PCR composite membrane.

[0075] It should be added that in the present invention, the driving component is a bidirectional electric push rod 805, and the two driving rods of the bidirectional electric push rod 805 are respectively fixed with a carrying arm 806. The bottoms of the two carrying arms 806 are both arranged at the bottom of the assembly plate 807, and are both fixed with an assembly frame 812. The scanning component and the cutting component are respectively fixed in the two assembly frames 812.

[0076] It should be noted that in order to enhance the stability of the carrying arm 806 when it moves, Figure 1-Figure 5 It can be seen that sliding frames 802 are fixed on both sides of the outer top of the carrying shell 808, a sliding shaft 803 is inserted between the two sliding frames 802, and the two carrying arms 806 are respectively inserted by the two sliding shafts 803.

[0077] Finally, it should be explained that in the present invention, carrying rollers 814 are fixed at both ends of the carrying shell 808, one of the carrying rollers 814 is equipped with a rotating motor, and a base belt 815 is sleeved between the two carrying rollers 814. The base belt 815 is used to carry and transport the PCR composite membrane raw materials. A number of limiting folding arms 816 are fixed on both sides of the outer surface of the base belt 815, and the limiting folding arms 816 are used to limit the position of the PCR composite membrane raw materials on the base belt 815. A guide inclined plate 817 is fixed at the position of the carrying shell 808 near the feeding component, and the guide inclined plate 817 is used to guide the fluid PCR composite membrane raw materials to the surface of the base belt 815.

[0078] It should be noted that the inclination angle of the guide ramp 817 is used to ensure uniform distribution of the raw materials on the base belt 815 to avoid uneven separation due to raw material accumulation. In addition, in order to further improve the preparation efficiency, the drive motor 14 of the base belt 815 is designed to be variable speed to adapt to PCR composite film raw materials of different thicknesses and materials. During the operation of the base belt 815, the limiting folding arm 816 can automatically adjust its position according to the width of the raw material to ensure the stability and consistency of the raw materials on the base belt 815.

[0079] refer to Figure 6 It can be seen that the present invention also proposes a method for preparing a PCR composite membrane using any one of the above-mentioned preparation settings, which includes: steps S100 to S600.

[0080] Specifically, step S100: injecting and scraping raw materials (fluid PCR composite membrane raw materials).

[0081] It should be clear that step S100 is used to inject the fluid PCR composite membrane raw material into the injection tank 5 through the injection channel 6, and use the scraper arm 7 to evenly scrape the fluid raw material on the surface of the transmission component to make the raw material evenly distributed and flat.

[0082] Step S200: Raw material (fluid PCR composite membrane raw material) transportation and extension.

[0083] It should be clear that step S200 is used to evenly stretch and coat the fluid PCR composite film raw material on the casting belt 2 by the cooperation of the transport roller 12 and the stretching roller 16 under the drive of the driving motor 14 .

[0084] Step S300: PCR composite membrane forming and processing.

[0085] It should be clear that step S300 is used to process the fluid PCR composite membrane raw material through the processing component 8, and the fluid PCR composite membrane raw material undergoes heating, cooling and other processes in the processing component 8 to form the required PCR composite membrane.

[0086] Step S400: PCR composite membrane detection.

[0087] It should be understood that step S400 is used to use the microelectronic scanner in the scanning component to perform a detailed scan on the membrane surface and monitor the thickness, uniformity and bubble parameters of the membrane in real time.

[0088] Step S500: PCR composite membrane cutting.

[0089] It should be clear that, in step S500 , based on the detection data acquired by the scanning component, the bidirectional electric push rod 805 moves the position of the micro-optical cutter 818 and allows the micro-optical cutter 818 to cut the PCR composite film.

[0090] Step S600: rolling up the PCR composite film.

[0091] It should be understood that step S600 is used to rotate the winding roller 10 to wind up the PCR composite film that meets the standards under the drive of the driving motor 14 .

[0092] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A preparation device for preparing a PCR composite film, comprising: A tape casting machine for preparing a PCR composite film, characterized in that the tape casting machine comprises: A transmission component for transporting fluid PCR composite membrane raw materials; A material adding component, installed at one end of the top of the transmission component, used for adding fluid PCR composite membrane raw materials; A processing component (8) is installed at the middle end of the top of the transmission component, and is used to make the fluid PCR composite membrane material on the top surface of the transmission component form a film, and based on the state inside the membrane, separate the PCR composite membrane into two parts; A winding component, installed at the other end of the top of the transmission component, used for recovering and winding the PCR composite membrane output by the processing component (8) and meeting the standards; The processing component (8) comprises: A carrying shell (808) is arranged at the middle end of the top of the transmission component, and the outside of the carrying shell (808) is fixed to the rack frame (1) on the outer surface of the transmission component; An assembly plate (807) is installed at the top of the housing (808), and fluid heaters (804) are installed on both sides of the top of the assembly plate (807) to evaporate and form the fluid PCR composite film raw material into a film shape by heating. A driving component is installed at the middle of the top of the assembly plate (807), and a cutting component based on optical cutting of the PCR composite film and a scanning component based on optical detection of the PCR composite film are respectively provided at both ends of the bottom of the assembly plate (807); A separation extrusion head cover (809) capable of adjusting the discharge angle is installed outside the carrying shell (808) near the winding component, and the winding component obtains the PCR composite film that meets the standards and is discharged from the separation extrusion head cover (809).

2. The device for preparing a PCR composite membrane according to claim 1, characterized in that: A servo motor (810) is installed at one end of the outside of the separation extrusion head cover (809), and separation plates (811) are respectively arranged at the top and bottom of the separation extrusion head cover (809). The separation plate (811) at the top of the separation extrusion head cover (809) is fixed to the rotating shaft of the servo motor (810) and is electrically connected to the scanning component. The separation plate (811) fixed to the servo motor (810) rotates and adjusts the gap between the outlet position of the separation extrusion head cover (809) and the separation plate (811) based on the PCR composite membrane information obtained by the scanning component, and the gap is used to output the separated PCR composite membrane.

3. The device for preparing a PCR composite membrane according to claim 1, characterized in that: The driving component is a bidirectional electric push rod (805), and two driving rods of the bidirectional electric push rod (805) are respectively fixed with a carrying arm (806), and the bottoms of the two carrying arms (806) are both arranged at the bottom of the assembly plate (807) and are both fixed with an assembly frame (812); The scanning component and the cutting component are respectively fixed in two assembly frames (812); the scanning component is a micro electronic scanner for scanning the surface of the PCR composite film; the cutting component comprises a micro optical cutter (818) and a light receiving plate (813); the micro optical cutter (818) and the micro electronic scanner are electrically connected.

4. The device for preparing a PCR composite membrane according to claim 1, characterized in that: Sliding frames (802) are fixed to both sides of the outer top of the carrying shell (808), a sliding shaft (803) is inserted between the two sliding frames (802), and the two carrying arms (806) are respectively inserted by the two sliding shafts (803).

5. The device for preparing a PCR composite membrane according to claim 1, characterized in that: The two ends of the carrying shell (808) are respectively fixed with bearing rollers (814), one of which is provided with a rotating motor, a base belt (815) is sleeved between the two bearing rollers (814), the base belt (815) is used to carry and transport the PCR composite membrane raw material, and a plurality of limit folding arms (816) are respectively fixed on both sides of the outer surface of the base belt (815), the limit folding arms (816) are used to limit the position of the PCR composite membrane raw material on the base belt (815); A guide inclined plate (817) is fixed to the position of the carrying shell (808) close to the material adding component, and the guide inclined plate (817) is used to guide the fluid PCR composite membrane raw material to the surface of the base belt (815).

6. The device for preparing a PCR composite membrane according to claim 1, characterized in that: The transmission component comprises: a frame (1), a control panel (4) for controlling the casting machine is installed on one side of the outside of the frame (1), a plurality of load-bearing rollers (17) are installed inside the frame (1), protruding frames are installed on the tops of the two ends of the outside of the frame (1), and the inside of the protruding frames is rotatably connected to an extension roller (16), and the bottoms of the two ends of the outside of the frame (1) are respectively fixed with brackets composed of extension arms (3), and the inside of the brackets is rotatably connected to a transport roller (12), and a casting belt (2) arranged on the extension roller (16) and the load-bearing roller (17) is coiled between the two transport rollers (12), and the casting belt (2) is used to carry a fluid PCR composite membrane raw material.

7. The device for preparing a PCR composite membrane according to claim 6, characterized in that: A driving motor (14) is installed outside the transport roller (12) close to the winding assembly, and a motor stand (13) is installed on the base of the driving motor (14); The winding assembly comprises: An extension frame (9) is mounted on the top of the frame frame (1), a removable winding roller (10) is mounted on the interior of the extension frame (9), one end of the winding roller (10) is mounted with a transmission wheel (15) mounted on one side of the extension frame (9), the end of the shaft of the drive motor (14) is fixed to a transport roller (12) close to the winding assembly, a driving wheel matched with the transmission wheel (15) is fixed in the middle of the shaft, and a belt (11) is sleeved between the driving wheel and the transmission wheel (15); Based on the rotation of the shaft of the driving motor (14), the winding roller (10) recycles and winds up the PCR composite film that is output by the processing component (8) and meets the standards.

8. The device for preparing a PCR composite membrane according to claim 1, characterized in that: The feeding assembly comprises: The liquid injection bin (5) is used to guide the fluid PCR composite membrane raw material. The top of the liquid injection bin (5) is equipped with a liquid injection channel (6) for adding the fluid PCR composite membrane raw material. The liquid injection bin (5) is equipped with a scraper arm (7) in contact with the surface of the transmission component at a position close to the processing component (8). The scraper arm (7) is used to scrape the fluid PCR composite membrane raw material placed on the surface of the transmission component.

9. A method for preparing a PCR composite membrane, characterized in that: A preparation device for preparing a PCR composite membrane as described in any one of claims 1 to 8 is used.

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