Preparation device and preparation process of TPEE three-layer co-extrusion polyester shading film

Abstract

The invention belongs to the technical field of preparation of shading films, and particularly relates to a preparation device and a preparation process of a TPEE three-layer co-extrusion polyester shading film. The preparation device comprises a preparation production line, the preparation production line is arranged in a line shape, and when edge cutting and edge closing are conducted on the shading film in the current shading film preparation process, edge materials are crushed through an edge cutting crusher and then fed into the production line; the cut edge materials are fed into a hopper A through a fan and then fed into a hopper B through a fan, so that the cut edge materials are recycled and applied on line, the flatness after rolling is ensured, the constant tension force is controlled, the problem of elastic retraction and wrinkling of leather is solved, and the stability of edge material conveying is guaranteed; the PPEE three-layer co-extrusion shading film is made of cloth-plastic composite fabric formed by compounding TPEE hot melt adhesive, polyester woven cloth and non-woven fabric adhesive; the prepared TPEE cloth-plastic composite material has the advantages that the compatibility of the cloth and the plastic is ensured, a foundation is laid for the path of recycling, reusing, energy saving, environmental protection and carbon emission reduction after use, and meanwhile, the prepared TPEE cloth-plastic composite material is applied to roller shutters, soft shutters, folding shutters, honeycombs and light-blocking and sun-shading cloth-plastic composite materials, and can make a great contribution to the energy-saving and environmental protection cause.

Description

Technical Field

[0001] The invention belongs to the technical field of light-shielding film preparation, and specifically relates to a preparation device and a preparation process of a TPEE three-layer co-extruded polyester light-shielding film. Background Art

[0002] The material characteristics of TPEE three-layer co-extruded polyester shading film can be compatible with PET chemical fiber polyester cloth, which solves the problem that the cloth-plastic composite material can be 100% recycled, crushed, granulated and reused after being discarded, which can save a lot of original PET raw materials, greatly reduce carbon emissions and save crude oil; the three-layer co-extruded film is designed with a black layer, which achieves 100% shading and anti-ultraviolet radiation into the room, lowering the indoor temperature, making the home more comfortable, reducing the operating frequency of the air-conditioning compressor, and saving the cost of household electricity; the light-weight shading film is different from the traditional PU-coated shading curtains and P Compared with VC coating shading film, the material usage is only one-fifth, which greatly saves petrochemical raw materials. Compared with the plastic coating process, it saves a lot of energy consumption. The equipment installation only requires 150 square meters. A three-layer co-extrusion film-forming line consumes only 100 kilowatts per hour and can produce more than 2,000 meters of film per hour, which is more than twice as efficient as the traditional PLI and PVC coating process. It is formed in one step. The coating process shading cloth plastic material must first apply a black layer as the base, and then apply a colored layer. At least two reciprocating processes are required, and the efficiency cannot be compared with the efficiency of co-extrusion equipment;

[0003] Material application: the main raw material and polyolefin modified masterbatch are mixed and used, which is efficient and simple. Masterbatch of various colors can be measured according to different color requirements. The carrier is designed according to the TPEE main material, with good compatibility, strong tinting power, and stable and reliable film formation.

[0004] The rolled co-extruded shading film is compounded with low-temperature and high-fluidity TPEE glue and polyester cloth, ensuring the compatibility of the three materials of cloth, film and glue, laying the foundation for the subsequent terminal application of waste gas recovery and regeneration, thereby achieving the goal of 100% recycling and regeneration, energy saving and emission reduction; TPEE three-layer co-extruded polyester shading film can also be used for cloth-plastic composite opening and closing curtains, cloth-plastic composite rolling curtains, cloth-plastic composite honeycomb curtains, cloth-plastic composite shading cloths, camping tents, parasols and other daily household and travel products; based on the high air permeability and moisture permeability of TPEE materials, it can also be applied to smart wearable products, including down jackets, military and police uniforms, breathable and moisture-permeable raincoats, etc.; TPEE three-layer co-extruded film introduces graphene antibacterial, antibacterial, mildew-proof and anti-mite mother liquor, which further ensures the safety, environmental protection and comfort, double-sided film and multi-functional efficiency when using the product. After official testing, it has fully achieved the expected goals;

[0005] Based on TPEE polyester and polyether thermoplastic elastomer new materials, they can be compatible with PET and PBT polyester chemical fiber woven polyester fabrics, thus achieving the purpose of 100% renewable and achieving the effects of energy saving, consumption reduction and emission reduction. Due to the high and low temperature resistance of the material, it will not break when it is hard and it is soft and gentle. The invention is applied to various home furnishing products such as honeycomb curtains, roller curtains, and cloth-plastic composite curtains that are heat-insulating, light-blocking, and UV-resistant. Based on PTEE materials, it can be designed to have high air permeability and moisture permeability. At the same time, it can be applied to the field of smart wearable products. Due to the excellent anti-aging performance of the material, it can achieve a durable effect. The equipment configured for the light-shielding, breathable and moisture-permeable membrane is a three-layer co-extrusion structure, with the middle and bottom layers as the light-shielding layer and the surface layer as the coloring layer, which can achieve a variety of appearance colors. Only the masterbatch needs to be introduced, which can be only 15 grams per square meter, saving the amount of materials, being light and cheap. The introduction of graphene functional masterbatch can achieve the multifunctional effect of long-term antibacterial, antibacterial and mildew-proof membranes formed by the release of negative ions from far away.

[0006] During the preparation of the shading film, the shading film needs to be trimmed and collected. At present, after trimming the shading film, the edge materials need to be reused to save energy and reduce emissions. Therefore, special attention needs to be paid to the transmission of the edge materials, because when the cut materials enter the crusher, the edge materials will fall off the guide wheel due to the tightness problem. This phenomenon has become a problem that needs to be solved urgently by people in this field. Summary of the invention

[0007] The object of the present invention is to provide a preparation device and a preparation process of a TPEE three-layer co-extruded polyester light-shielding film to solve the problems raised in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a preparation device of a TPEE three-layer co-extruded polyester shading film and a preparation process thereof, including a preparation production line, the preparation production line is arranged in a straight line, and includes a chilled water unit, a one-to-three dehumidification vacuum drying unit, three hoppers ABC, three sets of screws, a distributor, a mold, a rubber roller section, a patterned roller section, a peeling roller section, a bottom plate, a corona machine, a traction trimming roller section, an edge crusher, a flattening olive roller, a constant tensioner and a winding and changing section. The raw materials of different indicators of the three sets of the screws are input into a special extrusion mold through a distributor to produce a film; the one-to-three dehumidification vacuum drying unit is connected to the three hoppers ABC pipelines, the chilled water unit is connected to the rubber roller section pipeline, and there are two pipelines, one is a water inlet pipe, and the other is a water outlet pipe. The edge crusher is located on one side of the traction trimming roller section and is used for trimming and crushing the edge materials. The edge crusher is connected to the B hopper with a crushing material air duct.

[0009] The present invention further illustrates that the preparation process comprises the following steps: step S1, the equipment arrangement structure is a straight-line arrangement, and the prefabricated modified raw material of TPEE is circulated and introduced through a one-to-three dehumidification vacuum drying unit, corresponding to three sets of extruders, automatically sucking and feeding, and continuously feeding and drying through a one-to-three dehumidification vacuum drying unit, and then real-time quantitative and uninterrupted introduction into three hoppers ABC; step S2, the material enters the screw, is heated to the required processing temperature by the screw, and then extruded, and the corresponding screw co-extrudes three layers, the middle bottom layer is the shading layer, and the surface layer is the coloring layer; step S3, the chilled water unit introduces cooling water into the stripping roller, and the extruded material enters the mold and the rubber roller step surface, and the chilled water unit adopts a one-to-three form to introduce cooling water into the stripping roller section, the patterned roller section and The rubber roller section is pressed against each other; step S4, the corona machine is used to introduce the traction and trimming roller section for the next section, and the trimming is carried out at the same time. The edge material is crushed by the edge crusher, and then returned to the B hopper through the air conveying system and the crushed material air duct, and then flattened by the constant tensioner and the flattening olive roller, and then enters the winding and changing section for automatic metering and automatic film cutting; step S5, rolling, unwinding, packaging, shelf loading and storage; step S6, after the co-extruded film is prepared, it is equipped with TPEE hot melt adhesive cloth-plastic composite equipment, and at the same time, the pre-woven and dyed PET polyester polyester cloth is put on the constant tension cloth spreading rack, and after being glued by the glue mold, it is compounded with the constant tension film, flattened and rolled, that is, a multifunctional cloth-plastic composite fabric is formed, thereby achieving the energy-saving and environmentally friendly purpose of 100% recyclable crushing and granulation after use.

[0010] The present invention further illustrates that the traction trimming roller section in step S4 includes two bases, roller one, roller two, roller three, a cutter, two guide wheels and a tension chamber, the trimming crusher is provided with a winding shaft, and the cut material is collected into the trimming crusher through the two guide wheels and the winding shaft; the roller one, roller two and roller three are all axially connected between the two bases, the roller two and roller three are arranged opposite to each other up and down, and press against the shading film, the roller one is located on the left side of the roller three, and the shading film is located on the surface of the roller one, the cutter is fixedly installed between the two bases, and is located above the roller one, the tension chamber The force chamber is fixedly installed above one of the bases and is located on the right side of roller three. One of the guide wheel bearings is installed above the front base, and the bottom end bearing of the other guide wheel is installed on the connecting shaft. An elastic expansion joint is fixed to the lower end of the connecting shaft. The lower end of the elastic expansion joint is fixedly connected to a connecting rod. A slider is fixed to the bottom end of the connecting rod. A slide rail and a motor are fixed to the bottom of the inner wall of the force chamber. The slider is slidably connected to the inner wall of the slide rail. A gear is fixedly connected to the output end of the motor. A tooth plate is fixed to one side of the connecting rod, and the tooth plate and the gear are meshed with each other.

[0011] The present invention further illustrates that a power identification module is provided inside the edge trimming and shredding machine, and an increase control module is provided inside the motor. The power identification module is electrically connected to the increase control module. The power identification module is used to identify the operating power of the edge trimming and shredding machine in real time, so as to determine the speed of winding and cutting materials. The increase control module is used to control the alternating clockwise and counterclockwise rotation of the motor, and adjust the number of alternating clockwise and counterclockwise rotations according to the speed of winding and cutting materials, so as to control the expansion force on the cutting materials.

[0012] The present invention further illustrates that a buffer chamber and a hydraulic chamber are fixed on the right side of the inner wall of the tension chamber, a buffer plate is slidably connected to the inner wall of the buffer chamber, a buffer rod is fixed to the left side of the buffer plate, and the left end of the buffer rod is fitted with the right side of the connecting shaft; the right side of the buffer plate is spring-connected to the right side of the inner wall of the buffer chamber, a hydraulic plate is slidably connected to the inner wall of the hydraulic chamber, a hydraulic rod is fixed to the left side of the hydraulic plate, the hydraulic plate is spring-connected to the right side of the inner wall of the hydraulic chamber, the right side of the hydraulic chamber is connected to the right side of the buffer chamber through a pipeline, two holes are provided on the surface of the buffer plate, and the right side of the hydraulic plate is filled with hydraulic oil.

[0013] The present invention further illustrates that a ball is fixed on the right side of the connecting shaft, and the left end of the hydraulic rod is spherical. After the connecting shaft moves to the right, the ball and the spherical part of the left end of the hydraulic rod contact each other; a limiting groove is set in the middle of the guide wheel.

[0014] The present invention further illustrates that a limit rod is fixed above the gear, and a slot is provided at the upper end of the limit rod. A fixing rod is fixed on one side of the connecting shaft, and a blocking block is fixed below the left end of the fixing rod; when the connecting shaft falls, the blocking block is embedded in the slot.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention moves the guide wheel to the right side to push the cut material to move to the right side, thereby stretching the cut material, avoiding the phenomenon of material jamming and stripping due to low tensioning force during the cut material winding process, and after the cut material is stretched, the motor rotates counterclockwise to loosen the cut material again, reciprocating the loosening and tightening of the cut material, thereby loosening it to a certain degree, which can ensure the smooth operation of the winding process on the one hand, and avoid the cut material being broken by continuous tensioning force on the other hand, and the faster the winding and cutting speed of the edge crusher is, the more turns the motor rotates in the forward and reverse directions, and at this time the winding speed is fast and the cutting speed is also fast. In order to allow the cut material to enter the edge crusher smoothly, the tensioning force on the cut material is increased, and the cut material is fully prevented from being separated from the guide wheel;

[0016] It also acts as a buffer for the connecting shaft, preventing the guide wheel from instantly moving to the right and causing the tension to increase instantly, which can cause the cut material to be unable to withstand the force and break, thus protecting the cut material. The buffer strength is further enhanced through the force of the liquid, which can fully avoid the breakage caused by the instantaneous force on the cut material, and ensure the normal operation of the cut material edge crushing.

[0017] By making a small up and down jump action of the guide wheel, the deviated cut material can slide into the limit groove again to ensure the stable transmission of the cut material. When the connecting shaft drops downward quickly, it is affected by the weight of the guide wheel and drops more sharply, so that the clamping block is stuck in the clamping groove through the fixing rod, thereby preventing the motor from rotating counterclockwise at the first time, thereby loosening the cut material and avoiding the cut material from falling off, and ensuring the tension of the cut material before it enters the limit groove; then, through the vibration of the equipment, the rotation of the guide wheel and the elastic force of the elastic expansion joint, the clamping block slowly separates from the clamping groove upward to ensure the smooth operation of the cut material transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of a production line of a light-shielding film preparation process of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the traction trimming roller section of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the expansion chamber of the present invention;

[0022] Figure 4 It is a plan view of the expansion chamber of the present invention;

[0023] Figure 5 It is a schematic diagram of the initial position relationship between the card block and the card slot of the present invention;

[0024] Figure 6 It is a schematic diagram of the pipeline connection mode between the hydraulic chamber and the buffer chamber of the present invention;

[0025] In the figure: 1, base; 2, roller one; 3, roller two; 4, roller three; 5, cutter; 6, guide wheel; 61, connecting shaft; 611, sphere; 612, fixing rod; 613, block; 62, elastic expansion joint; 63, connecting rod; 631, tooth plate; 64, slider; 7, tension chamber; 71, slide rail; 72, motor; 721, gear; 722, limit rod; 723, slot; 73, buffer chamber; 731, buffer plate; 732, buffer rod; 733, hole; 74, hydraulic chamber; 741, hydraulic plate; 742, hydraulic rod; 8, limit slot. DETAILED DESCRIPTION

[0026] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. 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.

[0027] See also Figure 1-6 The present invention provides a technical solution: a TPEE three-layer co-extruded polyester light-shielding film preparation device and a preparation process thereof, including a preparation production line, the preparation production line is arranged in a straight line, and includes a chilled water unit, a one-to-three dehumidification vacuum drying unit, three ABC hoppers, three sets of screws, a distributor, a mold, a rubber roller section, a patterned roller section, a stripping roller section, a bottom plate, a corona machine, a traction trimming roller section, a trimming crusher, a flattening olive roller, a constant tensioner, and a winding and changing section. The raw materials of different indicators of the three sets of screws are input into a special extrusion mold through a distributor to produce a film;

[0028] The one-to-three dehumidification vacuum drying unit is connected to the three hopper pipes of ABC. The chilled water unit is connected to the rubber roller section pipe, and there are two pipes, one is the water inlet pipe and the other is the water outlet pipe. The edge crusher is located on one side of the traction trimming roller section and is used for trimming and crushing the edge materials. The edge crusher is connected to the B hopper with a crushing material air duct.

[0029] The preparation process includes the following steps:

[0030] Step S1, the equipment is arranged in a straight line, and the modified raw materials prefabricated by TPEE are circulated and introduced through a one-to-three dehumidification vacuum drying unit. The corresponding three sets of extruders automatically inhale and feed the materials, and the materials are continuously fed and dried through the one-to-three dehumidification vacuum drying unit, and then the materials are introduced into the three hoppers ABC in real time and quantitatively and continuously;

[0031] Step S2, the material enters the screw, is heated to the required processing temperature by the screw, and then is extruded. The corresponding screw co-extrudes three layers, the middle bottom layer is the light-shielding layer, and the surface layer is the coloring layer;

[0032] Step S3, the chiller introduces cooling water into the stripping roller, and the extruded material enters the mold and the rubber roller step surface. The chiller introduces cooling water into the stripping roller section in a one-to-three manner, and the pattern roller section and the rubber roller section are pressed against each other;

[0033] Step S4, the film is introduced into the traction trimming roller section through the corona machine for the next section, and the edge is trimmed at the same time. The edge material is crushed by the edge crusher, and then returned to the B hopper through the air conveying system and the crushed material air duct. After being flattened by the constant tensioner and the flattening olive roller, it enters the winding and changing section for automatic metering and automatic film cutting;

[0034] Step S5, rolling, unrolling, packaging, putting on shelves, and storing;

[0035] Step S6, after the co-extrusion film is prepared, it is equipped with TPEE hot melt adhesive cloth-plastic composite equipment, and the pre-woven dyed PET polyester cloth is put on the constant tension cloth spreading frame, and after being glued by the gluing mold, it is compounded with the constant tension film, flattened and rolled up to form a multifunctional cloth-plastic composite fabric, thereby achieving the purpose of energy saving and environmental protection of 100% recyclable crushing and granulation after use.

[0036] The traction trimming roller section in step S4 includes two bases 1, roller 1 2, roller 2 3, roller 3 4, a cutter 5, two guide wheels 6 and a tension chamber 7. The trimming crusher is provided with a reel, and the cut material is collected into the trimming crusher through the two guide wheels 6 and the reel;

[0037] Roller 1 2, roller 2 3 and roller 3 4 are all axially connected between two bases 1. Roller 2 3 and roller 3 4 are arranged opposite to each other up and down and press the light-shielding film. Roller 1 2 is located on the left side of roller 3 4, and the light-shielding film is located on the surface of roller 1 2. The cutter 5 is fixedly installed between the two bases 1 and located above roller 1 2. The tension chamber 7 is fixedly installed above one of the bases 1 and located on the right side of roller 3 4. One of the guide wheels 6 is installed above the front base 1, and the bottom end of the other guide wheel 6 is fixedly installed above the front base 1. The bearing is installed on the connecting shaft 61, and an elastic expansion joint 62 is fixed at the lower end of the connecting shaft 61. The lower end of the elastic expansion joint 62 is fixedly connected to the connecting rod 63, and a slider 64 is fixed to the bottom end of the connecting rod 63. A slide rail 71 and a motor 72 are fixed to the bottom of the inner wall of the expansion chamber 7. The slider 64 is slidably connected to the inner wall of the slide rail 71. A gear 721 is fixedly connected to the output end of the motor 72. A tooth plate 631 is fixed to one side of the connecting rod 63, and the tooth plate 631 and the gear 721 are meshed with each other.

[0038] The cut material enters the right side of the guide wheel 6 on the rear side through the right side of the guide wheel 6 on the front side, and then enters the edge crusher through the surface of the winding shaft to crush the edge material. When the cut material is wound up, the motor 72 rotates clockwise first, driving the gear 721 to rotate clockwise, and through the engagement with the tooth plate 631, drives the connecting rod 63 to move to the right side. The connecting rod 63 moves to the right side along the slide rail 71 through the slider 64, thereby driving the guide wheel 6 to move to the right side through the elastic expansion joint 62 and the connecting shaft 61, and the cut material moves to the right side, thereby stretching the cut material to avoid the phenomenon of loosening and low tensioning force during the winding process of the cut material, resulting in material jamming and stripping during the winding. After the cut material is stretched, the motor 72 rotates counterclockwise to loosen the cut material again, and the cut material is loosened and tightened reciprocatingly, so that the relaxation is moderate. On the one hand, it can ensure the smooth operation of the winding process, and on the other hand, it can avoid the continuous tensioning force from breaking the cut material.

[0039] A power identification module is provided inside the edge collecting and pulverizing machine, and an increase control module is provided inside the motor 72. The power identification module is electrically connected to the increase control module. The power identification module is used to identify the operating power of the edge collecting and pulverizing machine in real time, so as to judge the speed of winding and cutting materials. The increase control module is used to control the clockwise and counterclockwise alternating rotation of the motor 72, and adjust the number of clockwise and counterclockwise alternating rotations according to the speed of winding and cutting materials, so as to control the expansion force on the cutting materials.

[0040] The control method of the increase control module is: Q is the number of turns of the motor 72 in the forward and reverse directions. max is the maximum number of turns of the motor 72 in the forward and reverse directions, V is the speed of the edge crusher to roll and cut the material, V max It is the fastest speed of the winding and cutting of the edge crusher, that is, the faster the winding and cutting speed of the edge crusher is, the more circles the motor 72 rotates alternately in the forward and reverse directions. At this time, the winding speed is fast and the cutting speed is also fast. In order to make the cut materials enter the edge crusher smoothly, the tension force on the cut materials is increased to fully prevent the cut materials from detaching from the guide wheel 6.

[0041] A buffer chamber 73 and a hydraulic chamber 74 are fixed to the right side of the inner wall of the tension chamber 7. A buffer plate 731 is slidably connected to the inner wall of the buffer chamber 73. A buffer rod 732 is fixed to the left side of the buffer plate 731. The left end of the buffer rod 732 is in contact with the right side of the connecting shaft 61.

[0042] The right side of the buffer plate 731 is connected to the right side of the inner wall of the buffer chamber 73 by a spring, the inner wall of the hydraulic chamber 74 is slidably connected with a hydraulic plate 741, a hydraulic rod 742 is fixed to the left side of the hydraulic plate 741, the hydraulic plate 741 is connected to the right side of the inner wall of the hydraulic chamber 74 by a spring, the right side of the hydraulic chamber 74 is connected to the right side of the buffer chamber 73 by a pipeline, two holes 733 are arranged on the surface of the buffer plate 731, and the right side of the hydraulic plate 742 is filled with hydraulic oil;

[0043] When providing tension to the cut material, the connecting shaft 61 contacts the buffer rod 732, and the buffer rod 732 pushes the buffer plate 731 to slide to the right along the inner wall of the buffer cavity 73. The spring generates a reaction force under force, thereby buffering the connecting shaft 61, preventing the guide wheel 6 from moving to the right instantly and increasing the tension instantly, causing the cut material to be unable to withstand it and break, thereby protecting the cut material;

[0044] When Q = Q max , it indicates that the tensioning force on the cut material has reached the maximum, and at the same time, the connecting shaft 61 contacts and squeezes the left end of the hydraulic rod 742, and the hydraulic rod 742 pushes the hydraulic oil through the hydraulic plate 741, and the hydraulic oil enters the buffer chamber 73 through the pipeline. When the spring exerts a reaction force on the buffer plate 731, the hydraulic oil is squeezed by the buffer plate 731 through the hole 733 and flows back and forth between the buffer plates 731, so that the buffer strength is further enhanced through the action of the liquid, which can fully avoid the breakage caused by the instantaneous force of the cut material, and ensure the normal operation of the cut material edge finishing and crushing.

[0045] A ball 611 is fixed to the right side of the connecting shaft 61, and the left end of the hydraulic rod 742 is spherical. After the connecting shaft 61 moves to the right, the ball 611 and the spherical part of the left end of the hydraulic rod 742 contact each other.

[0046] A limiting groove 8 is provided in the middle of the guide wheel 6;

[0047] When Q = Q max When , it means that the tensioning force on the cut material reaches the maximum, and the winding speed is also fast. When the cut material passes through the guide wheel 6, it is easy to produce position deviation. The limit groove 8 can limit the cut material, so that the cut material can enter the edge crusher smoothly. The cut material deviates from the limit groove 8, and at the same time, the connecting shaft 61 moves to the right to the limit distance, and the ball 611 and the left end of the hydraulic rod 742 squeeze each other. When the hydraulic rod 742 is pushed to the limit position, the ball 611 continues to squeeze the hydraulic rod 742 and slides over the spherical part of the hydraulic rod 742. The spherical part supports the ball 611 and is forced upward, so that the elastic expansion joint 62 is elongated through the connecting shaft 61 and produces elastic deformation. After the ball 611 slides over the spherical part, the guide wheel 6's own gravity causes the connecting shaft 61 to drop rapidly, and the elastic expansion joint 62 is elastically reset, so that the guide wheel 6 makes a small up and down jump, which can make the deviated cut material slide into the limit groove 8 again, thereby ensuring the stable transmission of the cut material.

[0048] A limit rod 722 is fixed above the gear 721, and a clamping groove 723 is arranged at the upper end of the limit rod 722. A fixing rod 612 is fixed to one side of the connecting shaft 61, and a clamping block 613 is fixed below the left end of the fixing rod 612.

[0049] When the connecting shaft 61 falls, the clamping block 613 is embedded in the clamping groove 723;

[0050] Through the above steps, when the connecting shaft 61 drops downward rapidly, it is affected by the weight of the guide wheel 6.

[0051] The falling range is large, so that the block 613 is stuck in the slot 723 through the fixing rod 612, thereby preventing the motor 72 from rotating counterclockwise at the first time, thereby causing the cut material to be loosened and prevent the cut material from falling off, and ensuring the tension of the cut material before it enters the limiting groove 8;

[0052] Then, through the vibration of the equipment, the rotation of the guide wheel 6 and the elastic force of the elastic expansion joint 62, the clamping block 613 slowly disengages from the clamping slot 723 upwards, so as to ensure the smooth operation of the cutting material transmission.

[0053] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0054] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A preparation device for a TPEE three-layer co-extruded polyester light-shielding film, comprising a preparation production line, characterized in that: The production line is arranged in a straight line and includes a chilled water unit, a one-to-three dehumidification vacuum drying unit, three ABC hoppers, three sets of screws, a distributor, a mold, a rubber roller section, a patterned roller section, a stripping roller section, a bottom plate, a corona machine, a traction trimming roller section, a trimming crusher, a flattening olive roller, a constant tensioner, and a winding and changing section. The raw materials of different indicators of the three sets of screws are input into a special extrusion mold through a distributor to produce films; The one-to-three dehumidification vacuum drying unit is connected to the three hopper pipes of ABC. The chilled water unit is connected to the rubber roller section pipe, and there are two pipes, one is the water inlet pipe and the other is the water outlet pipe. The edge crusher is located on one side of the traction trimming roller section and is used for trimming and crushing the edge materials. The edge crusher is connected to the B hopper with a crushed material air duct.

2. A preparation process of a TPEE three-layer co-extruded polyester light-shielding film preparation device, according to claim 1, characterized in that: The preparation process comprises the following steps: Step S1, the equipment is arranged in a straight line, and the modified raw materials prefabricated by TPEE are circulated and introduced through a one-to-three dehumidification vacuum drying unit. The corresponding three sets of extruders automatically inhale and feed the materials, and the materials are continuously fed and dried through the one-to-three dehumidification vacuum drying unit, and then the materials are introduced into the three hoppers ABC in real time and quantitatively and continuously; Step S2, the material enters the screw, is heated to the required processing temperature by the screw, and then is extruded. The corresponding screw co-extrudes three layers, the middle bottom layer is the light-shielding layer, and the surface layer is the coloring layer; Step S3, the chiller introduces cooling water into the stripping roller, and the extruded material enters the mold and the rubber roller step surface. The chiller introduces cooling water into the stripping roller section in a one-to-three manner, and the pattern roller section and the rubber roller section are pressed against each other; Step S4, the film is introduced into the traction trimming roller section through the corona machine for the next section, and the edge is trimmed at the same time. The edge material is crushed by the edge crusher, and then returned to the B hopper through the air conveying system and the crushed material air duct. After being flattened by the constant tensioner and the flattening olive roller, it enters the winding and changing section for automatic metering and automatic film cutting; Step S5, rolling, unrolling, packaging, putting on shelves, and storing; Step S6, after the co-extrusion film is prepared, it is equipped with TPEE hot melt adhesive cloth-plastic composite equipment, and the pre-woven dyed PET polyester cloth is put on the constant tension cloth spreading frame, and after being glued by the gluing mold, it is compounded with the constant tension film, flattened and rolled up to form a multifunctional cloth-plastic composite fabric, thereby achieving the purpose of energy saving and environmental protection of 100% recyclable crushing and granulation after use.

3. The preparation process of the TPEE three-layer co-extruded polyester light-shielding film preparation device according to claim 2, characterized in that: The traction trimming roller section in step S4 comprises two bases (1), roller one (2), roller two (3), roller three (4), a cutter (5), two guide wheels (6) and a tension chamber (7); the trimming pulverizer is provided with a winding shaft, and the cut material is collected into the trimming pulverizer through the two guide wheels (6) and the winding shaft; The roller one (2), roller two (3) and roller three (4) are all axially connected between the two bases (1); the roller two (3) and roller three (4) are arranged opposite to each other up and down and press against the light-shielding film; the roller one (2) is located on the left side of the roller three (4), and the light-shielding film is located on the surface of the roller one (2); the cutting knife (5) is fixedly installed between the two bases (1) and is located above the roller one (2); the tension chamber (7) is fixedly installed above one of the bases (1) and is located on the right side of the roller three (4); one of the guide wheels (6) has a bearing installed above the front base (1); the bottom end of the other guide wheel (6) is fixedly installed above the front base (1); The bearing is installed on the connecting shaft (61), and an elastic expansion joint (62) is fixed at the lower end of the connecting shaft (61), and the lower end of the elastic expansion joint (62) is fixedly connected to a connecting rod (63), and a slider (64) is fixed at the bottom end of the connecting rod (63). A slide rail (71) and a motor (72) are fixed at the bottom of the inner wall of the expansion chamber (7), and the slider (64) is slidably connected to the inner wall of the slide rail (71). The output end of the motor (72) is fixedly connected to a gear (721), and a tooth plate (631) is fixed on one side of the connecting rod (63), and the tooth plate (631) and the gear (721) are meshed with each other.

4. The preparation process of the TPEE three-layer co-extruded polyester light-shielding film preparation device according to claim 3, characterized in that: A power identification module is provided inside the edge trimming and shredding machine, and an increase control module is provided inside the motor (72). The power identification module is electrically connected to the increase control module. The power identification module is used to identify the operating power of the edge trimming and shredding machine in real time, so as to determine the speed of winding and cutting materials. The increase control module is used to control the clockwise and counterclockwise alternating rotation of the motor (72), and adjust the number of clockwise and counterclockwise alternating rotations according to the speed of winding and cutting materials, so as to control the expansion force on the cutting materials.

5. The preparation process of the TPEE three-layer co-extruded polyester light-shielding film preparation device according to claim 4, characterized in that: A buffer chamber (73) and a hydraulic chamber (74) are fixed on the right side of the inner wall of the tension chamber (7); a buffer plate (731) is slidably connected to the inner wall of the buffer chamber (73); a buffer rod (732) is fixed on the left side of the buffer plate (731); and the left end of the buffer rod (732) is in contact with the right side of the connecting shaft (61); The right side of the buffer plate (731) is connected to the right side of the inner wall of the buffer chamber (73) by a spring, the inner wall of the hydraulic chamber (74) is slidably connected to a hydraulic plate (741), a hydraulic rod (742) is fixed to the left side of the hydraulic plate (741), the hydraulic plate (741) is connected to the right side of the inner wall of the hydraulic chamber (74) by a spring, the right side of the hydraulic chamber (74) is connected to the right side of the buffer chamber (73) by a pipeline, two holes (733) are provided on the surface of the buffer plate (731), and the right side of the hydraulic plate (742) is filled with hydraulic oil.

6. The preparation process of the TPEE three-layer co-extruded polyester light-shielding film preparation device according to claim 5, characterized in that: A sphere (611) is fixed on the right side of the connecting shaft (61), and the left end of the hydraulic rod (742) is spherical. When the connecting shaft (61) moves to the right, the sphere (611) and the spherical part of the left end of the hydraulic rod (742) contact each other. A limiting groove (8) is arranged in the middle of the guide wheel (6).

7. The preparation process of the TPEE three-layer co-extruded polyester light-shielding film preparation device according to claim 6, characterized in that: A limiting rod (722) is fixed above the gear (721), and a clamping groove (723) is provided at the upper end of the limiting rod (722); a fixing rod (612) is fixed on one side of the connecting shaft (61), and a clamping block (613) is fixed below the left end of the fixing rod (612); When the connecting shaft (61) falls, the clamping block (613) is embedded in the clamping groove (723).

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