A twin-screw extrusion device for reinforcing nylon particles
By introducing heating, pressurizing, and cooling components into the twin-screw extruder for nylon granules, the problems of uneven material distribution and thermal degradation were solved, thereby improving the mechanical properties and stability of the product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DIJIN TECHNOLOGY CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-08-04
AI Technical Summary
Existing twin-screw extrusion equipment for nylon granules struggles to achieve ideal plasticizing pressure during the plasticizing process, resulting in uneven material distribution, which affects the mechanical properties and durability of the product, and also leads to thermal degradation due to increased material temperature.
The design employs a combination of heating, pressurizing, and cooling components. The heating component provides heat to melt the material, the pressurizing component increases the extrusion pressure, and the cooling component rapidly cools the material, ensuring uniform mixing and cooling.
It improves the mechanical properties and dimensional stability of nylon particles, reduces microscopic inhomogeneity, and maintains the molecular structure and mechanical strength of the product.
Smart Images

Figure CN224588577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of twin-screw extrusion technology for nylon granules, and more specifically to a twin-screw extrusion apparatus for reinforcing nylon granules. Background Technology
[0002] The twin-screw extruder for nylon granules utilizes the synergistic action of two screws to achieve efficient material conveying, mixing, and plasticizing. This equipment offers advantages such as high production efficiency, excellent material plasticizing effect, and uniform mixing, and is widely used in the production and processing of nylon granules.
[0003] During the operation of the equipment, in the twin-screw extrusion process, it is difficult to achieve the ideal plasticizing pressure. The material may not be able to melt and mix fully, resulting in uneven plasticization. This may lead to problems such as internal voids and substandard mechanical properties in the final product, affecting its reliability and durability in actual use. Furthermore, the material temperature will continue to rise, exceeding its thermal stability range, thereby causing thermal degradation of the material.
[0004] Therefore, in order to solve the above problems, this application provides a twin-screw extrusion apparatus for reinforcing nylon granules. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a twin-screw extrusion device for reinforcing nylon granules to solve the problems existing in the background art.
[0006] This utility model provides the following technical solution: a twin-screw extrusion device for reinforcing nylon granules, comprising a housing assembly, a heating assembly, an extrusion assembly, a pressurizing assembly, and a cooling assembly, wherein the heating assembly is symmetrically distributed and installed on the outer wall of the housing assembly, the extrusion assembly is installed inside the housing assembly, the pressurizing assembly is installed above the housing assembly, and the cooling assembly is installed at the bottom of the housing assembly.
[0007] Preferably, it includes a housing assembly, a heating assembly, an extrusion assembly, a pressurizing assembly, and a cooling assembly, wherein the heating assembly is symmetrically distributed and installed on the outer wall of the housing assembly, the extrusion assembly is installed inside the housing assembly, the pressurizing assembly is installed above the housing assembly, and the cooling assembly is installed at the bottom of the housing assembly.
[0008] Preferably, the heating assembly includes a heat insulation cover and heating tubes, wherein the heat insulation cover is fixedly installed on the outer wall of the housing, and the heating tubes are fixedly installed in a matrix distribution inside the heat insulation cover.
[0009] Preferably, the extrusion assembly includes a first drive motor, a drive rod, a first helical blade, a first gear, a clamping tube, a transmission gear, a second gear, a transmission rod, and a second helical blade. The first drive motor is fixedly mounted above the outer casing. The output end of the first drive motor movably passes through the top of the first drive motor and is fixedly connected to the drive rod. The first helical blade is fixedly mounted on the outer wall of the drive rod. The drive rod is fixedly mounted through the first gear. The clamping tube movably passes through the top of the outer casing. A transmission gear is fixedly mounted at the bottom of the clamping tube. The first gear meshes with the first gear, and the transmission gear meshes with the second gear. One end of the transmission rod is movably sleeved inside the upper part of the outer casing. The transmission rod is fixedly mounted through the second gear, and the second helical blade is fixedly mounted on the outer wall of the transmission rod.
[0010] Preferably, the pressurization assembly includes a fixing block, a pressurization pump, and an air supply pipe. The fixing block is fixedly installed above the outer shell, the pressurization pump is fixedly installed above the fixing block, one end of the air supply pipe is fixedly inserted through the top of the outer shell, and the other end of the air supply pipe is fixedly connected to the output end of the pressurization pump. The pressurization assembly is provided to pressurize the inside of the device, thereby improving the extrusion efficiency of nylon particles inside the device.
[0011] Preferably, the cooling assembly includes a discharge pipe, an air outlet pipe, a support rod, a second drive motor, fan blades, and a seepage-proof plate. The discharge pipe is fixedly installed through the bottom of the outer casing, the air outlet pipe is fixedly installed on the side wall of the discharge pipe, the seepage-proof plate is fixedly installed through the side wall of the discharge pipe, one end of the support rod is fixedly installed on the inner wall of the air outlet pipe, and the other end of the support rod is fixedly installed on the outer wall of the second drive motor. A ring-shaped fan blade is fixedly installed on the output end of the second drive motor. The cooling assembly facilitates the cooling of the nylon particles that have undergone compression and movement above.
[0012] The technical effects and advantages of this utility model are as follows: This invention, by incorporating a pressure boosting component, facilitates the application of additional pressure to the material during the extrusion process. This results in stronger compression and shearing action between the screw and the barrel, and also helps the components in the nylon granules to fuse more evenly, reducing microscopic inhomogeneity in the material and thereby improving the mechanical properties, dimensional stability, and appearance quality of the product.
[0013] This invention incorporates a cooling component, which facilitates rapid cooling of the material after extrusion, maintaining the molecular structure and performance stability of the nylon particles and improving the mechanical strength of the product. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the overall structure and some cross-sectional views of the present invention.
[0016] Figure 3 For the present utility model Figure 2 Schematic diagram of structure A in the middle.
[0017] Figure 4 For the present utility model Figure 2 Schematic diagram of structure B in the middle.
[0018] The attached figures are labeled as follows: 1. Shell assembly; 101. Outer shell; 102. Feed pipe; 103. Funnel; 104. Receiving chamber; 105. Support base; 2. Heating assembly; 201. Heat insulation cover; 202. Heating tube; 3. Extrusion assembly; 301. First drive motor; 302. Drive rod; 303. First spiral blade; 304. First gear; 305. Pipe clamp; 306. Transmission gear; 307. Second gear; 308. Transmission rod; 309. Second spiral blade; 4. Pressurization assembly; 401. Fixing block; 402. Pressurization pump; 403. Air supply pipe; 5. Cooling assembly; 501. Discharge pipe; 502. Air outlet pipe; 503. Support rod; 504. Second drive motor; 505. Fan blade; 506. Anti-seepage plate. Detailed Implementation
[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The twin-screw extrusion of nylon particles involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0020] Reference Figure 1-4 This utility model provides a twin-screw extrusion device for reinforcing nylon granules, including a housing assembly 1, a heating assembly 2, an extrusion assembly 3, a pressure boosting assembly 4, and a cooling assembly 5. The heating assembly 2 is symmetrically distributed and installed on the outer wall of the housing assembly 1, the extrusion assembly 3 is installed inside the housing assembly 1, the pressure boosting assembly 4 is installed above the housing assembly 1, and the cooling assembly 5 is installed at the bottom of the housing assembly 1.
[0021] The housing assembly 1 includes an outer shell 101, a feed pipe 102, a funnel 103, a receiving chamber 104, and a support base 105. One end of the feed pipe 102 is fixedly inserted through the outer wall of the outer shell 101, and the funnel 103 is fixedly installed on the other end of the feed pipe 102. The receiving chamber 104 is placed at the bottom of the outer shell 101, and the support bases 105 are distributed in a matrix and fixedly installed at the bottom of the outer shell 101.
[0022] The heating assembly 2 includes a heat insulation cover 201 and heating tubes 202. The heat insulation cover 201 is fixedly installed on the outer wall of the outer shell 101, and the heating tubes 202 are fixedly installed in a matrix distribution inside the heat insulation cover 201.
[0023] The extrusion assembly 3 includes a first drive motor 301, a drive rod 302, a first helical blade 303, a first gear 304, a clamp tube 305, a transmission gear 306, a second gear 307, a transmission rod 308, and a second helical blade 309. The first drive motor 301 is fixedly installed above the outer shell 101. The output end of the first drive motor 301 movably passes through the upper part of the first drive motor 301 and is fixedly connected to the drive rod 302. The first helical blade 303 is fixedly installed on the outer wall of the drive rod 302. The drive rod 302 is fixedly installed through the first gear 304. The clamp tube 305 movably passes through the upper part of the outer shell 101. The bottom of the clamp tube 305 is fixedly installed with the transmission gear 306. The first gear 304 meshes with the first gear 304. The transmission gear 306 meshes with the second gear 307. One end of the transmission rod 308 is movably sleeved inside the upper part of the outer shell 101. The transmission rod 308 is fixedly installed through the second gear 307. The second helical blade 309 is fixedly installed on the outer wall of the transmission rod 308.
[0024] The pressurization assembly 4 includes a fixing block 401, a pressurization pump 402, and an air supply pipe 403. The fixing block 401 is fixedly installed above the outer shell 101, the pressurization pump 402 is fixedly installed above the fixing block 401, one end of the air supply pipe 403 is fixedly inserted through the upper part of the outer shell 101, and the other end of the air supply pipe 403 is fixedly connected to the output end of the pressurization pump 402. The pressurization assembly 4 is provided to pressurize the inside of the device, thereby improving the extrusion efficiency of nylon particles inside the device.
[0025] The cooling assembly 5 includes a discharge pipe 501, an air outlet pipe 502, a support rod 503, a second drive motor 504, fan blades 505, and a seepage-proof plate 506. The discharge pipe 501 is fixedly installed through the bottom of the outer shell 101, the air outlet pipe 502 is fixedly installed on the side wall of the discharge pipe 501, the seepage-proof plate 506 is fixedly installed through the side wall of the discharge pipe 501, one end of the support rod 503 is fixedly installed on the inner wall of the air outlet pipe 502, and the other end of the support rod 503 is fixedly installed on the outer wall of the second drive motor 504. A ring-shaped fan blade 505 is fixedly installed on the output end of the second drive motor 504. The cooling assembly 5 is provided to facilitate the cooling of the nylon particles that have been compressed and moved above.
[0026] The working principle of this utility model: The device is placed horizontally above the ground. Workers pour the nylon granules to be processed into the outer shell 101 through the funnel 103 and feed pipe 102. The heating pipe 202 then activates, providing heat to the interior of the outer shell 101, causing the granules to transform from a solid to a molten state, forming a uniform melt. Simultaneously, the output of the first drive motor 301 drives the drive rod 302 to rotate. The rotation of the drive rod 302 drives the first spiral blade 303 to rotate. The rotation of the first gear 304 drives the meshing transmission gear 306 to rotate. The rotation of the transmission gear 306 drives the meshing second gear 306 to rotate. 07 rotates, and the rotation of the second gear 307 drives the transmission rod 308 and the second spiral blade 309 to rotate, thereby enabling the device to achieve the effect of twin-screw extrusion. During the operation of the first drive motor 301, the output end of the booster pump 402 applies pressure to the inside of the outer shell 101 through the air supply pipe 403, thereby accelerating the transport of nylon granules. When the granules are transported above the cooling component 5, the output end of the second drive motor 504 starts to work. The output end of the second drive motor 504 drives the fan blade 505 to rotate, cooling the nylon melt that falls into the discharge pipe 501 through extrusion, thereby enabling the device to achieve the effect of enhanced twin-screw extrusion.
[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A twin-screw extrusion apparatus for reinforcing nylon granules, comprising a housing assembly (1), a heating assembly (2), an extrusion assembly (3), a pressurizing assembly (4), and a cooling assembly (5), characterized in that: The heating components (2) are symmetrically distributed and installed on the outer wall of the housing assembly (1), the extrusion components (3) are installed inside the housing assembly (1), the pressurizing components (4) are installed above the housing assembly (1), and the cooling components (5) are installed at the bottom of the housing assembly (1). The pressurizing components (4) include a fixing block (401), a pressurizing pump (402), and a gas supply pipe (403). The fixing block (401) is fixedly installed above the outer shell (101), the pressurizing pump (402) is fixedly installed above the fixing block (401), one end of the gas supply pipe (403) is fixedly inserted through the upper part of the outer shell (101), and the other end of the gas supply pipe (403) is fixedly connected to the output end of the pressurizing pump (402).
2. The twin-screw extruder for reinforcing nylon granules according to claim 1, characterized in that: The housing assembly (1) includes an outer shell (101), a feed pipe (102), a funnel (103), a receiving chamber (104), and a support base (105). One end of the feed pipe (102) is fixedly inserted through the outer wall of the outer shell (101), and the other end of the feed pipe (102) is fixedly installed with a funnel (103). The receiving chamber (104) is placed at the bottom of the outer shell (101), and the support bases (105) are distributed in a matrix and fixedly installed at the bottom of the outer shell (101).
3. The twin-screw extruder for reinforcing nylon granules according to claim 1, characterized in that: The heating assembly (2) includes a heat insulation cover (201) and heating tubes (202), wherein the heat insulation cover (201) is fixedly installed on the outer wall of the outer shell (101), and the heating tubes (202) are fixedly installed in a matrix distribution inside the heat insulation cover (201).
4. The twin-screw extruder for reinforcing nylon granules according to claim 1, characterized in that: The extrusion assembly (3) includes a first drive motor (301), a drive rod (302), a first helical blade (303), a first gear (304), a clamping tube (305), a transmission gear (306), a second gear (307), a transmission rod (308), and a second helical blade (309). The first drive motor (301) is fixedly installed above the outer casing (101). The output end of the first drive motor (301) movably passes through the top of the first drive motor (301) and is fixedly connected to the drive rod (302). The first helical blade (303) is fixedly installed outside the drive rod (302). On the wall, the drive rod (302) is fixedly inserted through the first gear (304), the clamp tube (305) is movably inserted through the top of the outer shell (101), and the bottom of the clamp tube (305) is fixedly installed with a transmission gear (306). The first gear (304) meshes with the first gear (304), and the transmission gear (306) meshes with the second gear (307). One end of the transmission rod (308) is movably sleeved inside the top of the outer shell (101), and the transmission rod (308) is fixedly inserted through the second gear (307). The second spiral blade (309) is fixedly installed on the outer wall of the transmission rod (308).
5. The twin-screw extruder for reinforcing nylon granules according to claim 1, characterized in that: The cooling assembly (5) includes a discharge pipe (501), an air outlet pipe (502), a support rod (503), a second drive motor (504), fan blades (505), and a seepage-proof plate (506). The discharge pipe (501) is fixedly inserted through the bottom of the outer casing (101). The air outlet pipe (502) is fixedly installed on the side wall of the discharge pipe (501). The seepage-proof plate (506) is fixedly inserted through the side wall of the discharge pipe (501). One end of the support rod (503) is fixedly installed on the inner wall of the air outlet pipe (502). The other end of the support rod (503) is fixedly installed on the outer wall of the second drive motor (504). A ring-shaped fan blade (505) is fixedly installed on the output end of the second drive motor (504).