Pressure-resistant hydrolysis-resistant nylon material and preparation system thereof

Abstract

The invention relates to the technical field of nylon materials, and particularly discloses a pressure-resistant and hydrolysis-resistant nylon material and a preparation system thereof.The pressure-resistant and hydrolysis-resistant nylon material comprises the following raw materials: 30%-50% of nylon 12 or nylon 46; 25%-45% of glass fiber; 1 to 10% of nanometer silicon particles; 1%-5% of an anti-hydrolysis agent; 0.5%-2% of a heat stabilizer; 1%-3% of a lubricant; 1%-3% of latex particles; the preparation method comprises the following steps: mixing the materials in proportion by adopting a wet mixing process, molding by virtue of an extruder, cutting into particles, and finally preparing the required nylon material by virtue of an injection molding machine body. According to the pressure-resistant and hydrolysis-resistant nylon material provided by the invention, the interface interaction between the polyamide matrix and the glass fiber is enhanced by introducing the nano silicon particles with the core-shell structure, so that firmer chemical bonding and mechanical anchoring between the polyamide matrix and the glass fiber are realized. The compatibility treatment of the interface is beneficial to stabilizing the bond energy of hydroxyl in a high-temperature environment, so that the hydrolysis reaction process is effectively delayed, and the durability of the material is improved.

Description

Technical Field

[0001] The invention relates to the technical field of nylon materials, and in particular to a pressure-resistant and hydrolysis-resistant nylon material and a preparation system thereof. Background Art

[0002] Hydrolysis-resistant glass fiber reinforced long carbon chain nylon is a composite material made by combining long carbon chain nylon, glass fiber reinforcement and anti-hydrolysis technology. It has excellent physical properties and durability, especially in wet, high temperature or humid environments.

[0003] Research on curing reaction control technology of nano-interface reinforced polyamide-based composites: In polyamide-based composites, the effective reinforcement function of glass fiber depends on the interfacial adhesion between the fiber and the matrix. How to promote this adhesion through nanoscale interface modification technology is a key technical difficulty in improving the performance of composite materials. At the same time, the chemical stability of the interface zone directly affects the durability and anti-aging ability of the material in a dynamic environment. Exploring the compatibility and action mechanism between the core-shell structure and polyamide glass fiber composites is crucial to achieving this goal. Summary of the invention

[0004] The purpose of the present invention is to provide a system for preparing a pressure-resistant and hydrolysis-resistant nylon material to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A pressure-resistant and hydrolysis-resistant nylon material comprises the following raw materials: nylon 12 or nylon 46: 30%-50%; glass fiber: 25%-45%; nano silicon particles: 1-10%; anti-hydrolysis agent: 1%-5%; heat stabilizer: 0.5%-2%; lubricant: 1%-3%; latex particles: 1%-3%;

[0007] The above materials are mixed in proportion using a wet mixing process, formed by an extruder, cut into particles, and finally made into the required nylon material by an injection molding machine.

[0008] A preparation system for preparing the above-mentioned pressure-resistant and hydrolysis-resistant nylon material, the preparation system comprising a workbench, an injection molding machine body arranged on the workbench, the injection molding machine body comprising an output pipe, a heated pipe fixedly connected to the output pipe, a delivery pipe connected to the heated pipe, and a reduction motor connected to the delivery pipe, the output end of the reduction motor is fixedly connected to a driving shaft, and a spiral delivery component is arranged inside the injection molding machine body;

[0009] An interception component is disposed inside the output pipe, and the interception component includes a first particle filter screen and a second particle filter screen. The first particle filter screen is close to the heated pipe and is used to intercept nylon particles that are not completely melted.

[0010] A plurality of first touch rods are arranged at the side end of the second particle filter, and the plurality of first touch rods correspond one-to-one to the mesh holes of the first particle filter. A driving component is arranged on the second particle filter, and the driving component is used to drive the second particle filter to approach and eject the particles stuck on the first particle filter, so as to achieve the effect of unblocking the output part.

[0011] Furthermore, the spiral conveying component includes a spiral conveying rod, a spiral grinding rod and a cone rod. The spiral conveying part is responsible for receiving and conveying particles forward, the spiral grinding part is responsible for rubbing and extruding the particles to make them molten, and the cone part is responsible for forming a containing cavity with the heated tube.

[0012] Furthermore, the driving component includes a bidirectional screw rod, a threaded sleeve is arranged on the second particle filter net, the bidirectional screw rod is threadedly connected with the threaded sleeve, and a transmission component is arranged outside the bidirectional screw rod, and the transmission component is responsible for driving the bidirectional screw rod to rotate.

[0013] Furthermore, a cleaning component is provided on the first particle filter net, and the cleaning component includes a cleaning rod, a transmission rod is fixedly connected between the cleaning rod and the cone rod, the first particle filter net is fixedly connected to the output pipe, and the first particle filter net is cleaned when the cone rod rotates.

[0014] Furthermore, a delay component is provided on the threaded sleeve, and the delay component is used to prolong the fitting time of the second particle filter and the first particle filter to improve the cleaning effect of the cleaning rod. The delay component includes a movable ring, and an annular groove is provided at the side end of the threaded sleeve. The movable ring slides inside the annular groove, and a telescopic part is provided between the inner wall of the annular groove and the movable ring. The movable ring is fixedly connected to the second particle filter. When the second particle filter and the first particle filter are fitted, the telescopic part is not retracted.

[0015] Furthermore, a reversing component is provided on the outside of the heated tube, and the reversing component is responsible for driving the heated tube to rotate in a direction opposite to the rotation direction of the spiral grinding rod. The reversing component includes a gear ring fixedly sleeved on the outer wall of the heated tube, and a driving gear is provided below the heated tube. A driven rod is fixedly connected to the inside of the driving gear, and a first pulley is fixedly sleeved on the outside of the driven rod, and a second pulley is fixedly sleeved on the outside of the driving shaft, and a transmission belt is commonly sleeved on the outsides of the first pulley and the second pulley.

[0016] Furthermore, the transmission component includes a driving ring rotatably connected to the side end of the output pipe, a plurality of connecting rods are fixedly connected between the driving ring and the bidirectional screw rod, a first friction roller is fixedly sleeved on the outside of the driving ring, a second friction roller is fixedly sleeved on the outside of the driven rod, and a friction belt is commonly provided on the outside of the first friction roller and the second friction roller.

[0017] Furthermore, the outer sleeve of the bidirectional screw rod is provided with a telescopic ring, and the interior of the telescopic ring is provided with an elastic member to help the threaded sleeve to reciprocate.

[0018] Furthermore, a plurality of second touch rods are fixedly connected to the side ends of the first particle filter net, and the plurality of first touch rods correspond one-to-one to the meshes of the first particle filter net.

[0019] In the above technical scheme, the preparation system of the pressure-resistant and hydrolysis-resistant nylon material provided by the present invention has the following beneficial effects:

[0020] By introducing nano-silicon particles with a core-shell structure to enhance the interfacial interaction between the polyamide matrix and the glass fiber, a stronger chemical bond and mechanical anchoring between the two can be achieved. This interfacial compatibilization treatment helps stabilize the bond energy of the hydroxyl group under high temperature conditions, thereby effectively delaying the hydrolysis reaction process and improving the durability of the material;

[0021] By setting the first particle filter net and the second particle filter net, when molten liquid passes through the output pipe, the first particle filter net can intercept these unmelted particles and make them continue to stay in the heated pipe; the second particle filter net is intermittently driven to move, and the particles stuck in the mesh are pushed out by relying on multiple first touch rods, which effectively avoids the blockage of the first particle filter net and affects the normal output of the molten liquid of the injection molding machine body.

[0022] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0023] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A schematic diagram of the overall external structure provided by an embodiment of the present invention;

[0026] Figure 2A schematic cross-sectional plan view of the injection molding machine body provided by an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of a sectional three-dimensional structure of an injection molding machine body provided by an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the separated structure of the injection molding machine body provided by an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the overall external structure from another perspective provided by an embodiment of the present invention;

[0030] Figure 6 A schematic cross-sectional view of an output tube provided in an embodiment of the present invention;

[0031] Figure 7 The embodiment of the present invention provides Figure 6 A schematic diagram of the enlarged structure at point A;

[0032] Figure 8 A schematic diagram of the structure of an interception component provided by an embodiment of the present invention;

[0033] Fig. 9 A schematic diagram of the structure of a transmission component provided by an embodiment of the present invention;

[0034] Fig.10 A schematic diagram of the structure of a delay component provided by an embodiment of the present invention;

[0035] Fig.11 A schematic cross-sectional structural diagram of a telescopic member provided in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1. Workbench; 2. Injection molding machine body; 21. Output pipe; 22. Heating pipe; 23. Delivery pipe; 24. Speed ​​reducer; 25. Drive shaft; 3. Screw conveyor; 31. Screw conveyor rod; 32. Screw grinding rod; 33. Cone rod; 34. Heating ring; 4. Interceptor; 41. First filter screen; 42. Second filter screen; 43. First touch rod; 44. Second touch rod; 5. Drive component; 51. Bidirectional screw rod; 52. Threaded sleeve; 6. Transmission component; 61. Drive ring; 62. Connecting rod; 63. First friction rod Wiping roller; 64, second friction roller; 65, friction belt; 7, cleaning component; 71, cleaning rod; 72, transmission rod; 8, delay component; 81, movable ring; 82, annular groove; 83, telescopic part; 831, hollow rod; 832, sliding rod; 833, reset spring; 834, magnetic ring; 835, iron ring; 84, telescopic ring; 9, reversing component; 91, gear ring; 92, driving gear; 93, driven rod; 94, first pulley; 95, second pulley; 96, transmission belt; 97, support frame; 10, lower hopper. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0039] A pressure-resistant and hydrolysis-resistant nylon material, comprising 30%-50% of nylon 12 or nylon 46, 25%-45% of glass fiber, 1%-10% of nano silicon particles, 1%-5% of anti-hydrolysis agent, 0.5%-2% of heat stabilizer, 1%-3% of lubricant, and 1%-3% of latex particles.

[0040] The above materials are mixed in proportion using a wet mixing process, formed by an extruder, cut into particles, and finally made into the required nylon material by an injection molding machine.

[0041] By introducing nano-silicon particles with a core-shell structure to enhance the interfacial interaction between the polyamide matrix and the glass fiber, a stronger chemical bond and mechanical anchoring between the two can be achieved. This interfacial compatibilization treatment helps stabilize the bond energy of the hydroxyl group under high temperature conditions, thereby effectively delaying the hydrolysis reaction process and improving the durability of the material. At the same time, the wet mixing process is used to achieve effective bonding between the latex particles and the glass fiber, avoiding the agglomeration of the glass fiber and improving the processability of the composite material during the melt extrusion process.

[0042] See also Figure 1-6 A preparation system for preparing the above-mentioned pressure-resistant and hydrolysis-resistant nylon material, the preparation system comprises a workbench 1, an injection molding machine body 2 arranged on the workbench 1, the injection molding machine body 2 comprises an output pipe 21, a heated pipe 22 fixedly connected to the output pipe 21, a delivery pipe 23 connected to the heated pipe 22, and a reduction motor 24 connected to the delivery pipe 23, the output end of the reduction motor 24 is fixedly connected to a driving shaft 25, a spiral delivery component 3 is arranged inside the injection molding machine body 2; a blocking component 3 is arranged inside the output pipe 21 The intercepting component 4 includes a first particle filter screen 41 and a second particle filter screen 42. The first particle filter screen 41 is close to the heat pipe 22 and is used to intercept nylon particles that are not completely melted. The side end of the second particle filter screen 42 is provided with a plurality of first touch rods 43, and the plurality of first touch rods 43 correspond to the mesh holes of the first particle filter screen 41 one by one. The second particle filter screen 42 is provided with a driving component 5, and the driving component 5 is used to drive the second particle filter screen 42 to approach and push out the particles stuck on the first particle filter screen 41, so as to achieve the effect of unblocking the output part.

[0043] Specifically, a support frame 97 is fixedly connected to the top of the workbench 1, a support ring is provided on the support frame 97, and the injection molding machine body 2 is located in the support ring to play a supporting role; an annular cavity is opened in the heat pipe 22, and a heating coil 34 is provided in the annular cavity. The heating coil 34 is responsible for heating to a suitable temperature.

[0044] In an embodiment further provided by the present invention, the spiral conveying component 3 includes a spiral conveying rod 31, a spiral grinding rod 32 and a conical rod 33. The spiral conveying part is responsible for receiving and conveying the particles forward, the spiral grinding part is responsible for rubbing and extruding the particles to make them molten, and the conical part is responsible for forming a receiving cavity with the heat tube 22.

[0045] Specifically, a lower hopper 10 is arranged above the conveying pipe 23, and the lower hopper 10 is filled with nylon particles. The end of the driving shaft 25 is fixedly connected to the end of the spiral conveying rod 31. The spiral blades of the spiral conveying rod 31 are relatively wide, and are responsible for conveying the nylon particles. There is a gradient portion between the spiral conveying rod 31 and the spiral grinding rod 32, which is responsible for extruding the nylon particles. The spiral blades of the spiral grinding rod 32 are relatively narrow, and are responsible for rubbing and grinding the nylon particles. Heat is generated by the extrusion force and friction force to heat the particles, and then the heating ring 34 is used to assist in temperature control and heating, so that the particles gradually become molten liquid. Finally, the liquid in front is pushed into the output pipe 21 by the extrusion of the particles behind until it is cooled and formed.

[0046] By setting the first particle filter 41 and the second particle filter 42, when molten liquid passes through the output pipe 21, a small part of the particles are not completely melted due to uneven heating of the particles in the early stage, impurities contained in the particles, too fast rotation speed of the spiral conveying component 3, etc., and the first particle filter 41 can be used to intercept these unmelted particles and make them continue to stay in the heated pipe 22; if there are particles staying in the mesh of the first particle filter 41, the second particle filter 42 can be driven to move, and the particles stuck in the mesh can be pushed out by relying on multiple first touch rods 43, so as to effectively avoid the first particle filter 41 from being blocked and affecting the normal output of the molten liquid of the injection molding machine body 2.

[0047] In an embodiment further provided by the present invention, the driving component 5 includes a bidirectional screw rod 51, a threaded sleeve 52 is provided on the second particle filter 42, the bidirectional screw rod 51 is threadedly connected with the threaded sleeve 52, and a transmission component 6 is provided on the outside of the bidirectional screw rod 51, and the transmission component 6 is responsible for driving the bidirectional screw rod 51 to rotate.

[0048] Specifically, a plurality of guide bars may be fixed on the inner wall of the output pipe 21, and a clamping groove is provided at the outer end of the second particle filter screen 42, and the second particle filter screen 42 moves horizontally through the clamping groove and the guide bars.

[0049] By driving the bidirectional screw rod 51 to rotate, the threaded sleeve 52 is forced to move, and the second particle filter screen 42 is moved with it, and the particles stuck in the mesh are pushed out by relying on the multiple first contact rods 43.

[0050] See also Figure 8 In the solution further provided by the present invention, a cleaning component 7 is provided on the first particle filter screen 41, and the cleaning component 7 includes a cleaning rod 71, and a transmission rod 72 is fixedly connected between the cleaning rod 71 and the cone rod 33. The first particle filter screen 41 is fixedly connected to the output pipe 21, and the first particle filter screen 41 is cleaned when the cone rod 33 rotates.

[0051] See also Figure 3 A reversing component 9 is provided on the outside of the heat receiving tube 22, and the reversing component 9 is responsible for driving the heat receiving tube 22 to rotate in a direction opposite to the rotation direction of the spiral grinding rod 32. The reversing component 9 includes a gear ring 91 fixedly sleeved on the outer wall of the heat receiving tube 22, and a driving gear 92 is provided below the heat receiving tube 22. The driving gear 92 is meshed and connected with the gear ring 91, and a driven rod 93 is fixedly connected to the inside of the driving gear 92, and a first pulley 94 is fixedly sleeved on the outside of the driven rod 93, and a second pulley 95 is fixedly sleeved on the outside of the driving shaft 25, and a transmission belt 96 is commonly sleeved on the outside of the first pulley 94 and the second pulley 95.

[0052] Specifically, a pair of support rings may be provided, wherein the support ring on the left is rotatably connected to the heat receiving pipe 22 , and the support ring on the right is fixedly connected to the delivery pipe 23 to restrict the delivery pipe 23 from rotating.

[0053] Specifically, the reduction motor 24 drives the spiral conveying rod 31, the spiral grinding rod 32 and the cone rod 33 to rotate forward, and at the same time drives the second pulley 95 to rotate through the first pulley 94 and the transmission belt 96, so that the driving gear 92 rotates forward, and the driving gear 92 drives the gear ring 91 to rotate, and finally realizes the reverse rotation of the heated tube 22. Due to the friction between the particles and the heated tube 22, when the heated tube 22 and the particles move in opposite directions, the friction generated is doubled, which further improves the effect of frictional heat generation, reduces the working power of the heating ring 34, and effectively saves energy consumption.

[0054] Specifically, the output pipe 21 follows the reverse rotation of the heated pipe 22 , and the first particle filter screen 41 also follows the reverse rotation, so that the cleaning rod 71 has a better cleaning effect.

[0055] See also Figure 5 , Fig. 9 The transmission component 6 includes a driving ring 61 rotatably connected to the side end of the output tube 21, a plurality of connecting rods 62 are fixedly connected between the driving ring 61 and the bidirectional screw rod 51, a first friction roller 63 is fixedly sleeved on the outside of the driving ring 61, a second friction roller 64 is fixedly sleeved on the outside of the driven rod 93, and a friction belt 65 is commonly provided on the outside of the first friction roller 63 and the second friction roller 64.

[0056] By providing the first friction roller 63 and the second friction roller 64 , the driven rod 93 rotates with the driving ring 61 , and the driving ring 61 rotates continuously with the bidirectional screw rod 51 through the connecting rod 62 , thereby completing the reciprocating motion of the second particle filter screen 42 .

[0057] See also Figure 7 , Figure 10-11 A delay component 8 is provided on the threaded sleeve 52, and the delay component 8 is used to prolong the fitting time of the second particle filter 42 and the first particle filter 41 to improve the cleaning effect of the cleaning rod 71. The delay component 8 includes a movable ring 81. An annular groove 82 is provided at the side end of the threaded sleeve 52. The movable ring 81 slides inside the annular groove 82. A telescopic member 83 is provided between the inner wall of the annular groove 82 and the movable ring 81. The movable ring 81 is fixedly connected to the second particle filter 42. When the second particle filter 42 and the first particle filter 41 are fitted together, the telescopic member 83 is not retracted.

[0058] The telescopic member 83 includes a hollow rod 831 , a sliding rod 832 and a return spring 833 sleeved on the outside of the sliding rod 832 . The sliding rod 832 slides inside the hollow rod 831 , and the bottom end of the sliding rod 832 is fixedly connected to the movable ring 81 .

[0059] Optionally, a magnetic ring 834 is fixedly connected to the inner wall of the hollow rod 831, and an iron ring 835 is fixedly connected to the outside of the sliding rod 832 near one end. Initially, the iron ring 835 is in contact with the magnetic ring 834, and the magnetic force between the iron ring 835 and the magnetic ring 834 is greater than the elastic force of the reset spring 833, so that when the telescopic part 83 is not contracted, the threaded sleeve 52 can rely on the movable ring 81 to push the second particle filter 42 to move until the second particle filter 42 is in contact with the first particle filter 41, and then continue to rotate the two-way screw rod 51 to break through the magnetic force of the iron ring 835 and the magnetic ring 834, and compress the telescopic part 83, so that the second particle filter 42 is in contact with the first particle filter 41 for a longer time, providing sufficient cleaning time for the cleaning rod 71 to clean the side of the first particle filter 41.

[0060] The outer sleeve of the bidirectional screw rod 51 is provided with a telescopic ring 84 , and the interior of the telescopic ring 84 is provided with an elastic member to help the threaded sleeve 52 to reciprocate.

[0061] Specifically, the telescopic ring 84 includes a fixed ring and a sliding ring. The elastic member is a telescopic tube with a compression spring. The fixed ring and the sliding ring are fixedly connected through the elastic member. The fixed ring is fixedly connected to the bidirectional screw rod 51. There is a narrow gap between the inner wall of the sliding ring and the outside of the bidirectional screw rod 51.

[0062] When the threaded sleeve 52 moves to the left end, it touches the sliding ring and squeezes the elastic member until the threaded sleeve 52 moves to the end point. After a short time, it continues to move to the right through the bidirectional screw rod 51, and repeats this process.

[0063] The side ends of the first particle filter net 41 are fixedly connected to a plurality of second touch rods 44 , and the plurality of first touch rods 43 correspond one to one to the meshes of the second particle filter net 42 .

[0064] By providing the second touch rod 44 , the second particle filter screen 42 can be provided with gaps, thereby increasing the fluid flux of the output pipe 21 .

[0065] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pressure-resistant and hydrolysis-resistant nylon material, characterized in that: It includes the following raw materials: Nylon 12 or Nylon 46: 30%-50%; Glass fiber: 25%-45%; Nano silicon particles: 1-10% Anti-hydrolysis agent: 1%-5%; Heat stabilizer: 0.5%-2%; Lubricant: 1%-3%; Latex particles: 1%-3%; The above materials are mixed in proportion using a wet mixing process, formed by an extruder, cut into particles, and finally made into the required nylon material by an injection molding machine.

2. A preparation system for preparing the pressure-resistant and hydrolysis-resistant nylon material according to claim 1, characterized in that: The preparation system comprises a workbench and an injection molding machine body arranged on the workbench, wherein the injection molding machine body comprises an output pipe, a heated pipe fixedly connected to the output pipe, a delivery pipe connected to the heated pipe, and a reduction motor connected to the delivery pipe, wherein the output end of the reduction motor is fixedly connected to a driving shaft, and a spiral delivery component is arranged inside the injection molding machine body; An interception component is disposed inside the output pipe, and the interception component includes a first particle filter screen and a second particle filter screen. The first particle filter screen is close to the heated pipe and is used to intercept nylon particles that are not completely melted. A plurality of first touch rods are arranged at the side end of the second particle filter, and the plurality of first touch rods correspond one-to-one to the mesh holes of the first particle filter. A driving component is arranged on the second particle filter, and the driving component is used to drive the second particle filter to approach and eject the particles stuck on the first particle filter, so as to achieve the effect of unblocking the output part.

3. The system for preparing the pressure-resistant and hydrolysis-resistant nylon material according to claim 2, characterized in that: The spiral conveying component includes a spiral conveying rod, a spiral grinding rod and a cone rod. The spiral conveying part is responsible for receiving and conveying particles forward, the spiral grinding part is responsible for rubbing and extruding the particles to make them molten, and the cone part is responsible for forming a containing cavity with the heated tube.

4. The system for preparing the pressure-resistant and hydrolysis-resistant nylon material according to claim 3, characterized in that: The driving component comprises a bidirectional screw rod, a threaded sleeve is arranged on the second particle filter net, the bidirectional screw rod is threadedly connected with the threaded sleeve, a transmission component is arranged outside the bidirectional screw rod, and the transmission component is responsible for driving the bidirectional screw rod to rotate.

5. The system for preparing pressure-resistant and hydrolysis-resistant nylon material according to claim 4, characterized in that: The first particle filter screen is provided with a cleaning component, the cleaning component includes a cleaning rod, a transmission rod is fixedly connected between the cleaning rod and the cone rod, the first particle filter screen is fixedly connected to the output pipe, and the cone rod cleans the first particle filter screen when it rotates.

6. The system for preparing the pressure-resistant and hydrolysis-resistant nylon material according to claim 5, characterized in that: The threaded sleeve is provided with a delay component, which is used to prolong the fitting time of the second particle filter and the first particle filter, thereby improving the cleaning effect of the cleaning rod. The delay component includes a movable ring, and the side end of the threaded sleeve is provided with an annular groove. The movable ring slides inside the annular groove. A telescopic part is provided between the inner wall of the annular groove and the movable ring. The movable ring is fixedly connected to the second particle filter. When the second particle filter and the first particle filter are fitted together, the telescopic part is not retracted.

7. The system for preparing the pressure-resistant and hydrolysis-resistant nylon material according to claim 6, characterized in that: A reversing component is arranged on the outside of the heat receiving tube, and the reversing component is responsible for driving the heat receiving tube to rotate in a direction opposite to the rotation direction of the spiral grinding rod. The reversing component includes a gear ring fixedly sleeved on the outer wall of the heat receiving tube. A driving gear is arranged below the heat receiving tube, and a driven rod is fixedly connected to the inside of the driving gear. A first pulley is fixedly sleeved on the outside of the driven rod, and a second pulley is fixedly sleeved on the outside of the driving shaft. A transmission belt is commonly sleeved on the outsides of the first pulley and the second pulley.

8. The system for preparing the pressure-resistant and hydrolysis-resistant nylon material according to claim 7, characterized in that: The transmission component includes a driving ring rotatably connected to the side end of the output pipe, a plurality of connecting rods are fixedly connected between the driving ring and the bidirectional screw rod, a first friction roller is fixedly sleeved on the outside of the driving ring, a second friction roller is fixedly sleeved on the outside of the driven rod, and a friction belt is commonly provided on the outside of the first friction roller and the second friction roller.

9. The system for preparing the pressure-resistant and hydrolysis-resistant nylon material according to claim 8, characterized in that: The outer sleeve of the bidirectional screw rod is provided with a telescopic ring, and the interior of the telescopic ring is provided with an elastic member to help the threaded sleeve to reciprocate.

10. The system for preparing pressure-resistant and hydrolysis-resistant nylon material according to claim 9, characterized in that: The side end of the first particle filter net is fixedly connected to a plurality of second touch rods, and the plurality of first touch rods correspond to the meshes of the first particle filter net one by one.

Images