A composite PP type sheet hot extrusion processing and preparation process

Abstract

The invention discloses a hot extrusion processing and preparation process for a composite PP type plate, S1: material screening of the PP type plate: step one: screening of the PP raw material, in the S1 process, step one: screening of the PP raw material, dividing the PP raw material into different specifications, vibrating and screening to obtain PP particles with consistent specifications, and separating the PP particles into suitable particle sizes, using a steel wire mesh or a steel plate to punch and bend the screening holes formed, and after the rolling of a screening drum, the roller is pressed and crushed, step two: grinding: the material needs to be powdered by high-speed rotation, and the feeding ratio during powdering should account for 80% of the total ratio. In terms of the later purification of the composite PP type plate, according to the screening scheme of the vibrating screen, after the PP particles are connected, the PP material particles are placed in the structure of the screening drum to rotate the roller, and the material analysis is obtained, and the crushing process is realized in the body of the grinding machine.

Description

Technical Field

[0001] The invention relates to the technical field of PP plate preparation technology, in particular to a composite PP type plate hot extrusion processing preparation technology. Background Art

[0002] Polypropylene (PP) extruded sheet is a plastic sheet made by adding various functional additives to PP resin through extrusion, calendering, cooling, cutting and other processes. PP sheet is a semi-crystalline material. It is harder and has a higher melting point than PE. Since homopolymer PP is very brittle when the temperature is above 0℃, copolymer PP material has a lower heat distortion temperature, low transparency, low gloss, low rigidity, but has stronger impact strength.

[0003] After searching, it was found that the application number is: CN202310083100.4, an anti-static PP sheet processing equipment and its process, the content of which is: The present invention relates to the field of PP sheet production technology, and provides an anti-static PP sheet processing equipment and its process, including a hopper, a stirring motor and a discharge valve, a mixing mechanism is fixed to the top of the discharge valve, a heating mechanism is fixed to the outside of the mixing mechanism, stirring motors are installed on both sides of the top of the mixing mechanism, a hopper is fixed at the middle position of the top of the mixing mechanism, and a protective plate is rotatably connected to the bottom of the hopper. The present invention is provided with a forming mechanism, the second water pipe joint is externally connected to the water supply pipe, the first water pipe joint is externally connected to the drainage pipe, cold water is transported to the inside of the pipe body through the second water pipe joint, and then discharged through the first water pipe joint, thereby accelerating the heat dissipation speed of the mold base, and causing the molten liquid inside the mold cavity to solidify quickly. The cover body is removed from the top of the mold base, and the electric push rod is started. The electric push rod will push the PP board out of the mold cavity through the top plate, thereby realizing the function of facilitating demolding of the device, thereby improving the working efficiency of the anti-static PP board processing equipment when in use.

[0004] Further search revealed a PP raw material sheet processing technology with application number: CN201510786230.X, the content of which is: The present invention discloses a PP raw material sheet processing technology, including: feeding; using a single screw extruder, the extrusion barrel is heated in four zones; evaporating the water contained in the PP raw material and timely removing it through the exhaust holes set on the barrel; forming and shaping into a sheet in the extrusion mold; forming a certain pressure on the molten PP raw material; cutting out the required length and placing it on a specific stacking rack; heat treatment; chamfering. The dark color of the PP sheet surface of the present invention is significantly improved, and the internal pores, bubbles or acne scars are greatly reduced, thereby greatly improving the performance of the sheet in all aspects; because the traction / brake process is used instead of the traditional brake process, the eccentricity of the sheet at the die outlet is eliminated, the thickness of the sheet is guaranteed, the process of manual repeated adjustment of the brake is reduced, and the work efficiency is improved.

[0005] It was further discovered that the following issues have not yet been resolved:

[0006] 1) When preparing traditional composite PP materials, there is usually a corresponding shaping process. The difficulty of the processing and preparation process is not convenient for PP materials to realize the process. In the conventional extrusion stage, for the corresponding assembly state of the sheet in the preparation link, in the later PP sheet shaping stage, as a composite PP sheet, the extrusion hot melt, the later preheating of the sheet is difficult and not convenient, and the unloading shaping is relatively simple and difficult. In addition, as for the shaping processing link of PP materials, the shaping processing of the sheet body is generally difficult to adapt. Various environments have caused the PP sheet of a single plastic material to have poor adaptability and easy damage and damage;

[0007] 2) On the other hand, in the processing and preparation technology of PP sheets, for the materials in the ongoing hot processing plan, the sheets themselves are too fragile in terms of their own strength test, the burrs on the edges are heavy, and the grinding stage is difficult. In addition, the corresponding hot extrusion processing of the PP sheets themselves obviously has a huge impact on efficiency. Summary of the invention

[0008] In view of this, the present invention provides a composite PP type sheet hot extrusion processing and preparation process to solve the problem that when traditional composite PP materials are prepared, there is usually a corresponding shaping process, and the processing and preparation process is difficult and not convenient for PP type materials to realize the process. In the conventional extrusion stage, for the corresponding assembly state of the sheet in the preparation link, in the later shaping stage of the PP sheet, as the composite PP type sheet, the extrusion hot melt, it is difficult to preheat the sheet in the later stage, and it is not convenient, and the unloading shaping is relatively simple and difficult. In addition, as far as the shaping processing link of the PP material is concerned, the shaping processing of the sheet body is generally difficult to adapt, and a variety of environments cause the PP type sheet made of a single plastic material to have poor adaptability and easy damage.

[0009] The technical solution adopted by the present invention to solve its technical problem is:

[0010] A composite PP type sheet hot extrusion processing and preparation process, including the following steps:

[0011] S1: Material screening of PP type sheets;

[0012] S2: heating to remove bubbles;

[0013] S3: extrusion molding of polypropylene;

[0014] S4: demoulding, cooling and polishing;

[0015] S5: wax the surface and frost it to remove burrs;

[0016] S6: Packaging and bundling.

[0017] As a preferred solution of the present invention: in the S1 process, step 1: screening of PP raw materials;

[0018] PP raw materials are divided into different specifications, and PP particles of the same specifications are obtained by vibration screening. PP particles are separated into appropriate particle sizes. The sieve is formed by punching and bending a steel wire mesh or a steel plate. After the sieve drum rolls, the roller is crushed.

[0019] Step 2: Grinding:

[0020] The PP material needs to be powdered by high-speed rotation, and the feeding ratio during powdering should account for 80% of the total ratio;

[0021] Grind, put it into the grinding machine, hit it at high speed, make the particles into powder, and then put it into the screen with finer screening specifications. The vibration force generated will screen out the PP plastic solids with larger particles remaining;

[0022] Impurities are removed, substances contained in the material are removed, the powder is rolled in the closed space by the screening drum, the drum and the external space form a closed space, the high-speed rotation screens out the suitable powder, and the powder that is not suitable for the hole position is isolated in the drum;

[0023] Step 3: Prevent dust explosion;

[0024] For the initial dust removal, the inside of the drum is vacuum, and the rotation is driven by a motor. The powder is screened inside and outside the drum cover by closing the delivery cover door, creating a vacuum state, which promotes the purification of the inside and outside of the vacuum environment. During this period, the vacuum environment is maintained by an extraction pump, which uses high-pressure vacuum extraction to ensure more accurate space purification. The high pressure in dust purification is used to prevent the dispersion of impurities and dust within a certain range.

[0025] As a preferred solution of the present invention: in the S2 process, step 1: feeding the powder material into the shaping cylinder;

[0026] Screening of PP type powder raw materials, used as raw material screening and shaping structure, according to the state of PP type powder raw materials placed into the kettle;

[0027] Step 2: Weighing;

[0028] A portion of the powder is taken out and weighed according to a certain specification based on a specific weight ratio analysis, and is divided into 50% of PP powder, 50% of wood powder (above 200 mesh), and a portion of maleic anhydride grafted PP 6%.

[0029] The temperature of the thermoplastic condition is maintained at 200 degrees Celsius. Finally, some specific substances are filled in according to the needs: such as EPDM, DCP cross-linking agent, divinylbenzene co-cross-linking agent, AC foaming agent, antioxidant, flame retardant materials, powder purification is implemented, and delivery is achieved in a certain proportion and then delivered to the specific reactor body;

[0030] It is then thermoformed into liquid through high-temperature thermoplasticization, maintaining heat, and always in liquid form. The viscosity meets the extrusion compression molding standards, and the thermoplastic standards of the molding material are determined for the storage of subsequent extrusion raw materials until the molding of the material is implemented, based on the positioning molding of the thermoplastic material.

[0031] As a preferred solution of the present invention: in the S3 process, step 1, extrusion of the liquid substance in the kettle;

[0032] According to the delivery and injection of specific shaping materials, according to the high temperature of the kettle material, it is then delivered at high temperature and delivered into the shaping extrusion plate. On the surface of the extrusion plate, the polypropylene is heated at high temperature and then heated. The thermoplastic material is extruded and formed by the upper and lower rollers according to the needs and arrives at the extruder. In the thermoplastic state of the extruder, it becomes a batch of desired extrusion materials. This extrusion material will be in an extruded state and used as an input for extrusion shaping materials.

[0033] Step 2: Shaping and moulding;

[0034] At this stage, personnel need to prepare extrusion materials, and better realize the delivery and extrusion preparation of molds. In the extrusion preparation stage, they are prepared for the extrusion of PP materials in the later stage. In addition, as for extrusion, the powder raw materials are put into the mold for extrusion. The extruder is used to control the temperature and then put it into the mold to shape and process the PP plate. The size and thickness can be designed;

[0035] Step 3: mold extrusion positioning;

[0036] The mold positioning and shaping on the material are implemented in the shaping stage, and the extrusion of the mold is used in the extrusion link for mold extrusion scheduling and extrusion cooling and demolding after entering the mold.

[0037] As a preferred solution of the present invention: in the S4 process, step 1: determine the size of the mold and slowly remove it;

[0038] In the initial stage of demoulding, cold water or wind is directly injected after demoulding to cool down until the molds are slowly opened, and then the mold can be ejected;

[0039] Step 2: Cooling and shaping;

[0040] Cooling spray slowly atomizes water, remember that cold water has a smaller temperature difference, and in the initial stage of cooling and shaping, clean it again to clean off excess dust, cool down and speed up shaping efficiency;

[0041] Step 3: As low temperature regulation of cooling water;

[0042] The initial stage of removing the material is the demoulding stage. Based on the corresponding demoulding assembly link, the demoulding assembly state is used to achieve the specific combination of extruded materials. The shaping materials in the combination stage are based on the unified low-temperature scheduling state of cooling water to ensure the corresponding low-temperature state. After the water is connected, the temperature is lowered.

[0043] Step 4: Temperature detection of finished extruded material;

[0044] The production workers need to check the finished product in accordance with the PP sheet, realize the detection, and finally detect the temperature result of the room temperature, and then repeatedly use the specific extrusion material to uniformly stack it to ensure that the temperature is completely at the desired point, according to the specific temperature detection, based on the corresponding temperature detection stage, according to the temperature detection of the corresponding PP sheet, according to the corresponding extrusion material, according to the unified assembly state of the specific PP sheet, used for cooling;

[0045] Drying removes moisture, and the contact aspect is based on the material aspect, based on the material combination of the specific PP sheet;

[0046] The high-temperature specific high-temperature plates are placed on the drying machine, and then transported uniformly by the crawler. During the transportation stage, the wind attracted by the negative pressure in the crawler area is directed towards the surface area of ​​the extruded board, and then it is approached and adsorbed to remove the water stains remaining on the surface of the PP type plate.

[0047] As a preferred solution of the present invention: in step S5, step 1: using polyethylene glue on the PP sheet;

[0048] According to the frosting material, it is placed on the surface of the specific object and painted on. According to the surface of the polyethylene glue, it is evenly painted. After painting, the structure on the corresponding material is realized. The specific polyethylene material is evenly painted on the plate used for frosting. After the surface of the plate is in contact, it can be evenly sprayed. In terms of spraying, wax coating and frosting are realized.

[0049] Step 2: Removal of edge burrs;

[0050] The burr edge contacts and runs at high speed to remove the residual materials on the surface. After power is turned on, the roller on the surface is controlled to rotate, close to the edge of the PP sheet and circle around, further removing the surface impurities of the PP sheet;

[0051] Step 3: Apply wax;

[0052] The wax coating process on the surface is that the heat-sealed wax is subjected to high temperature, and finally heat-sealed around the wax coating, and then purified. After the wax coating is in contact, the wax coating surface heat-sealed and the wax coating structure is realized after brushing.

[0053] As a preferred solution of the present invention: in the S6 process, step 1: using a packaging machine to achieve bundling;

[0054] During the period, according to the bundling of materials, around the corresponding bundling, the assembly structure is realized. In the packaging link, according to the indicators of the PP board, the material is seen by the projection of light. After the inspection and packaging, it is placed in the storage box according to the tensile strength and packaging;

[0055] Step 2: Bundle and seal;

[0056] After bundling and sealing, the sealing is achieved by bundling one end of the sealing tape. After the sealing stage, the pasting end is wrapped around the front and rear rollers and attached to the surface of the carton to seal.

[0057] Step 3: Label sealing;

[0058] After sealing is achieved at one end of the label seal, during the sealing stage, the sealing position around the label is sealed with a sealing structure and then assembled.

[0059] Compared with the prior art, the present invention has the following beneficial effects:

[0060] 1) In terms of the later purification of composite PP type sheet, according to the screening scheme of the vibrating screen, after the PP particles are connected, the PP material particles are placed in the structure of the screening cylinder to rotate the roller, and the material is analyzed and obtained. The powder is crushed in the body of the mill, and then the impurities are purified based on the material of the screen to screen out the appropriate powder, in preparation for the later heating and molding;

[0061] 2) The initial dust is driven by the rotating motor to control the rotation of the roller at the output end to prevent diffusion, and then the rotating motor is powered on to control the roller structure to rotate, and the cooling is adopted. The demoulding and cooling polishing structures are adopted to realize assembly, and the water temperature structure of the cooling demoulding is adopted to realize the replacement of the cooling water and the low temperature state, and the temperature is cooled by the negative pressure suction fan stage, and the wax coating and frosting stage are adopted. Rapid spraying is adopted, and in the process of spraying, the raw materials on the surface of the finished PP sheet are attached to the surface;

[0062] 3) The adopted packaging bundling steps realize the specific structure to facilitate bundling, utilize the packaging state to realize assembly, adopt one end of the bundling mouth to realize assembly, adopt the label structure to realize assembly, adopt the label end structure to realize assembly, adopt the sealing structure to realize assembly, and realize the scheduling and sealing packaging according to the sealing end to make it more efficient. DETAILED DESCRIPTION

[0063] A composite PP type sheet hot extrusion processing and preparation process, S1: material screening of PP type sheet:

[0064] In this embodiment: Step 1: Screening of PP raw materials;

[0065] PP raw materials are divided into different specifications, and PP particles of the same specifications are obtained by vibration screening. PP particles are separated into appropriate particle sizes. The sieve is formed by punching and bending a steel wire mesh or a steel plate. After the sieve drum rolls, the roller is crushed.

[0066] Step 2: Grinding:

[0067] The PP material needs to be powdered by high-speed rotation, and the feeding ratio during powdering should account for 80% of the total ratio;

[0068] Grind, put it into the grinding machine, hit it at high speed, make the particles into powder, and then put it into the screen with finer screening specifications. The vibration force generated will screen out the PP plastic solids with larger particles remaining;

[0069] Impurities are removed, substances contained in the material are removed, the powder is rolled in the closed space by the screening drum, the drum and the external space form a closed space, the high-speed rotation screens out the suitable powder, and the powder that is not suitable for the hole position is isolated in the drum;

[0070] Step 3: Prevent dust explosion;

[0071] For the initial dust removal, the inside of the drum is vacuum, and the rotation is driven by a motor. The powder is screened inside and outside the drum cover by closing the delivery cover door, creating a vacuum state, which promotes the purification of the inside and outside of the vacuum environment. During this period, the vacuum environment is maintained by an extraction pump, which uses high-pressure vacuum extraction to ensure more accurate space purification. The high pressure in dust purification is used to prevent the dispersion of impurities and dust within a certain range.

[0072] S2: heating to remove bubbles;

[0073] In this embodiment: Step 1: feeding the powder material into the shaping cylinder;

[0074] Screening of PP type powder raw materials, used as raw material screening and shaping structure, according to the state of PP type powder raw materials placed into the kettle;

[0075] Step 2: Weighing;

[0076] A portion of the powder is taken out and weighed according to a certain specification based on a specific weight ratio analysis, and is divided into 50% of PP powder, 50% of wood powder (above 200 mesh), and a portion of maleic anhydride grafted PP 6%.

[0077] The temperature of the thermoplastic condition is maintained at 200 degrees Celsius. Finally, some specific substances are filled in according to the needs: such as EPDM, DCP cross-linking agent, divinylbenzene co-cross-linking agent, AC foaming agent, antioxidant, flame retardant materials, powder purification is implemented, and delivery is achieved in a certain proportion and then delivered to the specific reactor body;

[0078] It is then thermoformed into liquid through high-temperature thermoplasticization, maintaining heat, and always in liquid form. The viscosity meets the extrusion compression molding standards, and the thermoplastic standards of the molding material are determined for the storage of subsequent extrusion raw materials until the molding of the material is implemented, based on the positioning molding of the thermoplastic material.

[0079] S3: extrusion molding of polypropylene;

[0080] In this embodiment: Step 1, extrusion of liquid material in the kettle;

[0081] According to the delivery and injection of specific shaping materials, according to the high temperature of the kettle material, it is then delivered at high temperature and delivered into the shaping extrusion plate. On the surface of the extrusion plate, the polypropylene is heated at high temperature and then heated. The thermoplastic material is extruded and formed by the upper and lower rollers according to the needs and arrives at the extruder. In the thermoplastic state of the extruder, it becomes a batch of desired extrusion materials. This extrusion material will be in an extruded state and used as an input for extrusion shaping materials.

[0082] Step 2: Shaping and moulding;

[0083] At this stage, personnel need to prepare extrusion materials, and better realize the delivery and extrusion preparation of molds. In the extrusion preparation stage, they are prepared for the extrusion of PP materials in the later stage. In addition, as for extrusion, the powder raw materials are put into the mold for extrusion. The extruder is used to control the temperature and then put it into the mold to shape and process the PP plate. The size and thickness can be designed;

[0084] Step 3: mold extrusion positioning;

[0085] The mold positioning and shaping on the material is implemented in the shaping stage, and the mold extrusion is used in the extrusion extrusion link to extrusion and cooling and demolding after the mold is extruded into the mold;

[0086] S4: demoulding, cooling and polishing;

[0087] In this embodiment: Step 1: Determine the size of the mold and slowly remove it;

[0088] In the initial stage of demoulding, cold water or wind is directly injected after demoulding to cool down until the molds are slowly opened, and then the mold can be ejected;

[0089] Step 2: Cooling and shaping;

[0090] Cooling spray slowly atomizes water, remember that cold water has a smaller temperature difference, and in the initial stage of cooling and shaping, clean it again to clean off excess dust, cool down and speed up shaping efficiency;

[0091] Step 3: As low temperature regulation of cooling water;

[0092] The initial stage of removing the material is the demoulding stage. Based on the corresponding demoulding assembly link, the demoulding assembly state is used to achieve the specific combination of extruded materials. The shaping materials in the combination stage are based on the unified low-temperature scheduling state of cooling water to ensure the corresponding low-temperature state. After the water is connected, the temperature is lowered.

[0093] Step 4: Temperature detection of finished extruded material;

[0094] The production workers need to check the finished product in accordance with the PP sheet, realize the detection, and finally detect the temperature result of the room temperature, and then repeatedly use the specific extrusion material to uniformly stack it to ensure that the temperature is completely at the desired point, according to the specific temperature detection, based on the corresponding temperature detection stage, according to the temperature detection of the corresponding PP sheet, according to the corresponding extrusion material, according to the unified assembly state of the specific PP sheet, used for cooling;

[0095] Drying removes moisture, and the contact aspect is based on the material aspect, based on the material combination of the specific PP sheet;

[0096] Place the high-temperature boards on the drying machine, and then transport them uniformly by the crawler. During the transportation stage, the wind attracted by the negative pressure in the crawler area faces the surface area of ​​the extruded board, and then it is close to the surface area of ​​the extruded board and adsorbed to remove the water stains remaining on the surface of the PP type board;

[0097] S5: wax the surface and frost it to remove burrs;

[0098] In this embodiment: Step 1: using polyethylene glue on the PP sheet;

[0099] According to the frosting material, it is placed on the surface of the specific object and painted on. According to the surface of the polyethylene glue, it is evenly painted. After painting, the structure on the corresponding material is realized. The specific polyethylene material is evenly painted on the plate used for frosting. After the surface of the plate is in contact, it can be evenly sprayed. In terms of spraying, wax coating and frosting are realized.

[0100] Step 2: Removal of edge burrs;

[0101] The burr edge contacts and runs at high speed to remove the residual materials on the surface. After power is turned on, the roller on the surface is controlled to rotate, close to the edge of the PP sheet and circle around, further removing the surface impurities of the PP sheet;

[0102] Step 3: Apply wax;

[0103] The wax coating process on the surface is that the heat-sealed wax is subjected to high temperature, and finally the heat seal around the wax coating is realized, and then purification is realized. After the contact with the wax coating, the wax coating surface heat seal is realized, and the wax coating structure is realized after brushing.

[0104] S6: Packaging and bundling;

[0105] In this embodiment: Step 1: bundling is achieved by using a packaging machine;

[0106] During the period, according to the bundling of materials, around the corresponding bundling, the assembly structure is realized. In the packaging link, according to the indicators of the PP board, the material is seen by the projection of light. After the inspection and packaging, it is placed in the storage box according to the tensile strength and packaging;

[0107] Step 2: Bundle and seal;

[0108] After bundling and sealing, the sealing is achieved by bundling one end of the sealing tape. After the sealing stage, the pasting end is wrapped around the front and rear rollers and attached to the surface of the carton to seal.

[0109] Step 3: Label sealing;

[0110] After sealing is achieved at one end of the label seal, during the sealing stage, the sealing position around the label is sealed with a sealing structure and then assembled.

[0111] The above description is only a preferred embodiment of the invention and does not limit the scope of the invention. Therefore, without departing from the design spirit of the invention, equivalent changes or decorations made by ordinary technicians in this field to the structure, features and principles described in the invention should fall within the protection scope of the invention.

Claims

1. A composite PP type sheet hot extrusion processing and preparation process, characterized in that: S1: Material screening of PP type sheets; S2: heating to remove bubbles; S3: extrusion molding of polypropylene; S4: demoulding, cooling and polishing; S5: wax the surface and frost it to remove burrs; S6: Packaging and bundling.

2. A composite PP type sheet hot extrusion processing and preparation process as claimed in claim 1, characterized in that: In the S1 process, step 1: screening of PP raw materials; PP raw materials are divided into different specifications, and PP particles with consistent specifications are obtained through vibration screening. PP particles are separated into appropriate particle sizes. The screening holes formed by punching and bending a wire mesh or a steel plate are crushed by the roller after the rolling of the screening drum. Step 2: Grinding: The PP material needs to be powdered by high-speed rotation, and the feeding ratio during powdering should account for 80% of the total ratio; Grind, put it into the grinding machine, hit it at high speed, make the particles into powder, and then put it into the screen with finer screening specifications. The vibration force generated will screen out the PP plastic solids with larger particles remaining; Impurities are removed, substances contained in the material are removed, the powder is rolled in the closed space by the screening drum, the drum and the external space form a closed space, the high-speed rotation screens out the suitable powder, and the powder that is not suitable for the hole position is isolated in the drum; Step 3: Prevent dust explosion; For the initial dust removal, the inside of the drum is vacuum, and the rotation is driven by a motor. The powder is screened inside and outside the drum cover by closing the delivery cover door, creating a vacuum state, which promotes the purification of the inside and outside of the vacuum environment. During this period, the vacuum environment is maintained by an extraction pump, which uses high-pressure vacuum extraction to ensure more accurate space purification. The high pressure in dust purification is used to prevent the dispersion of impurities and dust within a certain range.

3. A composite PP type sheet hot extrusion processing and preparation process as claimed in claim 1, characterized in that: In the S2 process, step 1: feeding the powder material into the shaping cylinder; Screening of PP type powder raw materials, used as raw material screening and shaping structure, according to the state of PP type powder raw materials placed into the kettle; Step 2: Weighing; A portion of the powder is taken out and weighed according to a certain specification based on a specific weight ratio analysis, and is divided into 50% of PP powder, 50% of wood powder (above 200 mesh), and a portion of maleic anhydride grafted PP 6%. The temperature of the thermoplastic condition is maintained at 200 degrees Celsius. Finally, some specific substances are filled in according to the needs: such as EPDM, DCP cross-linking agent, divinylbenzene co-cross-linking agent, AC foaming agent, antioxidant, flame retardant materials, powder purification is implemented, and delivery is achieved in a certain proportion and then delivered to the specific reactor body; It is then thermoformed into liquid through high-temperature thermoplasticization, maintaining heat, and always in liquid form. The viscosity meets the extrusion compression molding standards, and the thermoplastic standards of the molding material are determined for the storage of subsequent extrusion raw materials until the molding of the material is implemented, based on the positioning molding of the thermoplastic material.

4. A composite PP type sheet hot extrusion processing and preparation process as claimed in claim 1, characterized in that: In the S3 process, step 1, extrusion of the liquid substance in the kettle; According to the delivery and injection of specific shaping materials, according to the high temperature of the kettle material, it is then delivered at high temperature and delivered into the shaping extrusion plate. On the surface of the extrusion plate, the polypropylene is heated at high temperature and then heated. The thermoplastic material is extruded and formed by the upper and lower rollers according to the needs and arrives at the extruder. In the thermoplastic state of the extruder, it becomes a batch of desired extrusion materials. This extrusion material will be in an extruded state and used as an input for extrusion shaping materials. Step 2: Shaping and moulding; At this stage, personnel need to prepare extrusion materials, and better realize the delivery and extrusion preparation of molds. In the extrusion preparation stage, they are prepared for the extrusion of PP materials in the later stage. In addition, as for extrusion, the powder raw materials are put into the mold for extrusion. The extruder is used to control the temperature and then put it into the mold to shape and process the PP plate. The size and thickness can be designed; Step 3: mold extrusion positioning; The mold positioning and shaping on the material are implemented in the shaping stage, and the extrusion of the mold is used in the extrusion link for mold extrusion scheduling and extrusion cooling and demolding after entering the mold.

5. A composite PP type sheet hot extrusion processing and preparation process as claimed in claim 1, characterized in that: In the S4 process, step 1: determine the size of the mold and slowly remove it; In the initial stage of demoulding, cold water or wind is directly injected after demoulding to cool down until the molds are slowly opened, and then the mold can be ejected; Step 2: Cooling and shaping; Cooling spray slowly atomizes water, remember that cold water has a smaller temperature difference, and in the initial stage of cooling and shaping, clean it again to clean off excess dust, cool down and speed up shaping efficiency; Step 3: As low temperature regulation of cooling water; The initial stage of removing the material is the demoulding stage. Based on the corresponding demoulding assembly link, the demoulding assembly state is used to achieve the specific combination of extruded materials. The shaping materials in the combination stage are based on the unified low-temperature scheduling state of cooling water to ensure the corresponding low-temperature state. After the water is connected, the temperature is lowered. Step 4: Temperature detection of finished extruded material; The production workers need to check the finished product in accordance with the PP sheet, realize the detection, and finally detect the temperature result of the room temperature, and then repeatedly use the specific extrusion material to uniformly stack it to ensure that the temperature is completely at the desired point, according to the specific temperature detection, based on the corresponding temperature detection stage, according to the temperature detection of the corresponding PP sheet, according to the corresponding extrusion material, according to the unified assembly state of the specific PP sheet, used for cooling; Drying removes moisture, and the contact aspect is based on the material aspect, based on the material combination of the specific PP sheet; The high-temperature specific high-temperature plates are placed on the drying machine, and then transported uniformly by the crawler. During the transportation stage, the wind attracted by the negative pressure in the crawler area is directed towards the surface area of ​​the extruded board, and then it is approached and adsorbed to remove the water stains remaining on the surface of the PP type plate.

6. A composite PP type sheet hot extrusion processing and preparation process as claimed in claim 1, characterized in that: In step 1 of the S5 process: using polyethylene glue on the PP sheet; According to the frosting material, it is placed on the surface of the specific object and painted on. According to the surface of the polyethylene glue, it is evenly painted. After painting, the structure on the corresponding material is realized. The specific polyethylene material is evenly painted on the plate used for frosting. After the surface of the plate is in contact, it can be evenly sprayed. In terms of spraying, wax coating and frosting are realized. Step 2: Removal of edge burrs; The burr edge contacts and runs at high speed to remove the residual materials on the surface. After power is turned on, the roller on the surface is controlled to rotate, close to the edge of the PP sheet and circle around, further removing the surface impurities of the PP sheet; Step 3: Apply wax; The wax coating process on the surface is that the heat-sealed wax is subjected to high temperature, and finally heat-sealed around the wax coating, and then purified. After the wax coating is in contact, the wax coating surface heat-sealed and the wax coating structure is realized after brushing.

7. A composite PP type sheet hot extrusion processing and preparation process as claimed in claim 1, characterized in that: In the S6 process, step 1: using a packaging machine to achieve bundling; During the period, according to the bundling of materials, around the corresponding bundling, the assembly structure is realized. In the packaging link, according to the indicators of the PP board, the material is seen by the projection of light. After the inspection and packaging, it is placed in the storage box according to the tensile strength and packaging; Step 2: Bundle and seal; After bundling and sealing, the sealing is achieved by bundling one end of the sealing tape. After the sealing stage, the pasting end is wrapped around the front and rear rollers and attached to the surface of the carton to seal. Step 3: Label sealing; After sealing is achieved at one end of the label seal, during the sealing stage, the sealing position around the label is sealed with a sealing structure and then assembled.