An extrusion molding device for environmentally friendly degradable plastics

Abstract

The present invention relates to the technical field of plastic production, and particularly discloses an extrusion molding device for environmentally friendly degradable plastics, which includes a bracket and a screw conveyor module and a feeding module arranged on the bracket. The screw conveyor module and the feeding module are respectively used for the conveying, mixing and feeding operations of external materials; a driving module for controlling the operating states of the screw conveyor module and the feeding module is also arranged on the bracket. The screw conveyor module includes a cylinder body for conveying and heating external materials, and a heating component is arranged on the cylinder body. The heating component includes a first heating element and a second heating element arranged at both ends of the cylinder body, and the temperature can be finely adjusted as needed to ensure the stability and consistency of the extruded products. This design of heating at both ends not only improves the heating efficiency, but also makes the temperature control more accurate, which helps to optimize the extrusion molding process.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic production, and particularly discloses an extrusion molding device for environmentally friendly degradable plastics. Background Art

[0002] Plastic is a type of synthetic resin, similar in shape to pine resin in natural resin. It is artificially synthesized through chemical means and is called plastic. Plastic is a polymer compound formed by polymerization of monomers through addition polymerization or polycondensation reactions, commonly known as plastic or resin, and can freely change its composition and form. Currently, plastic molding is mostly achieved by an extruder, and the plastic extruder also belongs to one of the types of plastic machinery. According to the included angle between the direction of the material flow at the die head and the center line of the screw, the die head can be divided into a right-angle die head and an oblique-angle die head, etc. The screw extruder relies on the pressure and shear force generated by the rotation of the screw to enable the material to be fully plasticized and evenly mixed, and is formed through the die.

[0003] In the existing plastics during the heating process, if the amount of material is small, it will cause uneven heating. The existing material inlet and barrel are mostly fixed structures, making it difficult to clean and repair the barrel separately. In addition, most of the existing extruders rely on manual feeding. The raw materials are put into the material inlet and then conveyed into the interior of the extruder for melting and extrusion. However, the existing extruder cannot adjust the dosage of the raw material input according to the extrusion rate of the extruder. Summary of the Invention

[0004] In order to overcome the deficiencies and drawbacks existing in the prior art, the purpose of the present invention is to provide an extrusion molding device for environmentally friendly degradable plastics.

[0005] To achieve the above purpose, an extrusion molding device for environmentally friendly degradable plastics of the present invention includes a bracket and a auger module and a feeding module provided on the bracket. The auger module and the feeding module are respectively used for the conveying, mixing and feeding operations of external materials; a driving module for controlling the operating states of the auger module and the feeding module is also provided on the bracket. The auger module includes a barrel for conveying and heating external materials, and a heating component is provided on the barrel. The heating component includes a first heating element and a second heating element provided at both ends of the barrel.

[0006] Preferably, the bracket includes a first frame body and a second frame body provided on the first frame body. The first frame body and the second frame body are respectively used for the setting of the auger module and the feeding module. The feeding module is provided on the second frame body, and the feeding module is connected to the auger module for realizing the supply of external materials. This hierarchical design optimizes the overall layout of the device, enabling the auger module and the feeding module to be orderly installed on the bracket, not only reducing the floor area, but also improving the space utilization rate. At the same time, modular assembly is also beneficial for subsequent disassembly and repair.

[0007] Preferably, the auger module further includes a discharging member disposed at the end of the cylinder body. The discharging member is connected to the cylinder body via an external connecting member. A sealing member for sealing is provided between the discharging member and the cylinder body. The setting of the sealing member effectively prevents the leakage of materials at the connection between the discharging member and the cylinder body, avoids material waste and environmental pollution, and at the same time ensures the continuity and stability of the extrusion molding process. The reliable connection between the discharging member and the cylinder body is achieved through the external connecting member, which not only facilitates installation and disassembly, but also helps with the maintenance and repair of the equipment, reduces the maintenance cost, and only requires the disassembly and replacement of the discharging member when different-shaped materials need to be extruded.

[0008] Preferably, the auger module includes a first shaft body rotatably disposed on the second frame body. A spiral blade is provided on the first shaft body. One end of the first shaft body provided with the blade is accommodated in the cylinder body. The axial direction of the first shaft body is parallel to the axial direction of the cylinder body. The rotation of the first shaft body drives the spiral blade to rotate. The spiral structure of the blade enables the materials in the cylinder body to be steadily pushed along the axial direction, realizing continuous and uniform material transportation. The axial direction of the first shaft body being parallel to the axial direction of the cylinder body ensures the stability and consistency of the material transportation direction, and avoids the offset and accumulation of materials during transportation.

[0009] Preferably, there are multiple (not specified in the original text, assumed to be some heating elements or structures) provided on the inner wall of the cylinder body. The multiple are arranged in an annular array on the cylinder body. They are integrally formed with the cylinder body to increase the heat receiving area of the materials inside the cylinder body, improve the heat transfer efficiency, enable the materials to be heated more evenly and quickly during the extrusion process, thereby optimizing the extrusion molding effect, improving the quality and production efficiency of the products. At the same time, the integral forming enhances the structural strength of the cylinder body, improving the durability and stability of the equipment.

[0010] Preferably, the first heating member is disposed at the end of the cylinder body away from the discharging member. The first heating member is an electric heating wire. The temperature of the first heating member gradually increases from the end of the cylinder body away from the discharging member to the end of the cylinder body close to the discharging member, which can ensure that the materials in the cylinder body are gradually heated from the low-temperature area to the high-temperature area, realizing the gradient control of the temperature, avoiding the thermal degradation or thermal deformation of the materials due to sudden high temperature, ensuring the quality and stability of the extrusion molding products. At the same time, this temperature gradient design also helps the materials to be evenly heated and fully melted in the cylinder body, improving the extrusion efficiency and product quality.

[0011] Preferably, the second heating member is disposed at the end of the cylinder body close to the discharging member. The second heating member surrounds the cylinder body to maintain the internal temperature of the cylinder body within the melting temperature range of the plastic material. The second heating member can ensure that the materials remain in a stable molten state at the end of the extrusion process, avoiding the solidification or semi-solidification of the materials caused by temperature fluctuations, thus ensuring the continuity and stability of the extrusion molding, improving the melting uniformity and extrusion quality of the materials, and helping to produce high-quality, defect-free extrusion molding products.

[0012] Preferably, a feed hopper is provided on the second frame body. The feeding module includes a sleeve rotatably provided on the feed hopper, and a feeding member for driving the external material to fall is provided on the sleeve, which can accurately control and adjust the material entering the cylinder. By rotating the sleeve, the feeding member can be driven to change the falling speed and flow rate of the material, so as to flexibly adjust the supply amount of the material according to the production requirements. This not only improves the accuracy and stability of the material supply, but also helps to optimize the extrusion molding process and improve the quality and production efficiency of the product.

[0013] Preferably, a second shaft body is provided in the sleeve, and the sleeve is arranged on the second shaft body through an external bolt. One end of the second shaft body close to the driving module penetrates through the feed hopper and is provided with a second gear. There are two feeding modules, and the second gears of the two feeding modules are meshed. By driving the second shaft body of one feeding module to rotate by the driving module, since the second gears of the two feeding modules are meshed, the other feeding module can be driven to rotate synchronously, so as to realize uniform feeding at the feeding port. This not only improves the stability and consistency of the material supply, but also helps to optimize the extrusion molding process and improve the quality and production efficiency of the product.

[0014] Preferably, a transmission member is rotatably provided on the feed hopper. One end of the first shaft body away from the discharging member is provided with a first gear, and the first gear is transmitted with the second gear through the transmission member, realizing the linkage control between the auger module and the feeding module. When the driving module is started and drives the first shaft body to rotate, the first gear rotates accordingly, and drives the second gear to rotate through the transmission member, and then drives the sleeve and the feeding member of the feeding module to rotate, realizing uniform feeding of the material. This linkage control method not only simplifies the operation process of the equipment and improves the production efficiency, but also ensures the coordination between the material supply and the auger conveying, avoiding the extrusion molding problems caused by insufficient or excessive material supply, thereby improving the quality and stability of the extrusion molding product.

[0015] The beneficial effects of the present invention: A heating component is provided on the cylinder body, and the heating component can ensure that the material is uniformly heated to a suitable molten state during the conveying process, thereby improving the extrusion efficiency and product quality. The first heating member is usually arranged away from the discharging end for initially heating the material entering the cylinder body, while the second heating member is arranged near the discharging end for maintaining the molten state of the material before extrusion and can fine-tune the temperature according to needs to ensure the stability and consistency of the extruded product. This design of heating at both ends not only improves the heating efficiency, but also makes the temperature control more accurate, which helps to optimize the extrusion molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the main body of the present invention;

[0017] Figure 2 Cross-sectional schematic diagram of the body structure of the present invention;

[0018] Figure 3 One of the internal schematic diagrams of the body of the present invention;

[0019] Figure 4 Another internal schematic diagram of the body of the present invention;

[0020] Figure 5 Schematic diagram of the cross-sectional change of the blade of the present invention;

[0021] Figure 6 Cross-sectional schematic diagram of the cylinder of the present invention;

[0022] Figure 7 Longitudinal sectional schematic diagram of the cylinder of the present invention.

[0023] Reference numerals include:

[0024] 1, support; 2, auger module; 3, feeding module; 4, drive module; 5, heating component; 11, first frame; 12, second frame; 21, first shaft; 22, blade; 23, first gear; 24, cylinder; 25, discharge part; 26, protrusion; 31, feeding hopper; 32, transmission part; 33, second gear; 34, second shaft; 35, sleeve; 36, blanking part; 41, first driving part; 51, first heating part; 52, second heating part. Detailed implementation manners

[0025] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation manners does not limit the present invention.

[0026] Please refer to Figures 1 to 7 As shown, an extrusion molding device for environmentally friendly degradable plastics of the present invention includes a support 1 and an auger module 2 and a feeding module 3 provided on the support 1. The auger module 2 and the feeding module 3 are respectively used for the conveying, mixing and blanking operations of external materials; a drive module 4 for controlling the operating states of the auger module 2 and the feeding module 3 is further provided on the support 1. The auger module 2 includes a cylinder 24 for conveying and heating external materials, and a heating component 5 is provided on the cylinder 24. The heating component 5 includes a first heating part 51 and a second heating part 52 provided at both ends of the cylinder 24.

[0027] Specifically, a heating assembly 5 is provided on the cylinder body 24. The heating assembly 5 can ensure that the material is uniformly heated to an appropriate molten state during transportation, thereby improving the extrusion efficiency and product quality. The first heating element 51 is usually arranged away from the discharge end and is used to initially heat the material entering the cylinder body. The second heating element 52 is arranged near the discharge end and is used to maintain the molten state of the material before extrusion, and the temperature can be finely adjusted as needed to ensure the stability and consistency of the extruded product. This design of heating both ends not only improves the heating efficiency but also makes the temperature control more accurate, which helps to optimize the extrusion molding process.

[0028] Specifically, a central control box is also provided in this embodiment. Temperature sensors are provided on the cylinder body 24. When the equipment is started, the heating assembly 5 starts to work and provides the necessary heat for the cylinder body 24. The temperature sensors continuously monitor the temperature inside the cylinder body 24 and transmit this information to the control system in the central control box. The control system automatically adjusts the output power of the heating assembly according to the difference between the preset temperature range and the actual temperature. By continuously monitoring and adjusting, the control system can ensure that the temperature inside the cylinder body always remains within an appropriate range, thereby achieving effective heating and uniform extrusion of the environmentally degradable plastic.

[0029] Specifically, the support 1 includes a first frame body 11 and a second frame body 12 arranged on the first frame body 11. The first frame body 11 and the second frame body 12 are respectively used for arranging the auger module 2 and the feeding module 3. The feeding module 3 is arranged on the second frame body 12. The feeding module 3 is connected to the auger module 2 to realize the supply of external materials. This hierarchical design optimizes the overall layout of the equipment, enabling the auger module 2 and the feeding module 3 to be installed on the support 1 in an orderly manner. It not only reduces the floor area but also improves the space utilization rate. At the same time, modular assembly is also beneficial for subsequent disassembly and maintenance.

[0030] Specifically, the auger module 2 further includes a discharge member 25 arranged at the end of the cylinder body 24. The discharge member 25 is connected to the cylinder body 24 via an external connecting member. A sealing member for sealing is arranged between the discharge member 25 and the cylinder body 24. The arrangement of the sealing member effectively prevents the leakage of the material at the connection between the discharge member 25 and the cylinder body 24, avoids material waste and environmental pollution, and at the same time ensures the continuity and stability of the extrusion molding process. The reliable connection between the discharge member 25 and the cylinder body 24 is realized through the external connecting member, which is not only convenient for installation and disassembly but also helps with the maintenance and repair of the equipment, reducing the maintenance cost. When different-shaped materials need to be extruded, only the discharge member 25 needs to be disassembled and replaced.

[0031] Specifically, the sealing member can be made of materials such as rubber and graphite.

[0032] Specifically, the auger module 2 includes a first shaft body 21 rotatably arranged on the second frame body 12. A spiral blade 22 is arranged on the first shaft body 21. One end of the first shaft body 21 provided with the blade 22 is accommodated in the cylinder body 24. The axial direction of the first shaft body 21 is parallel to the axial direction of the cylinder body 24. The rotation of the first shaft body 21 drives the spiral blade 22 to rotate. The spiral structure of the blade 22 enables the material to be stably pushed along the axial direction in the cylinder body 24, realizing continuous and uniform material transportation. The axial direction of the first shaft body 21 being parallel to the axial direction of the cylinder body 24 ensures the stability and consistency of the material transportation direction, avoiding the deviation and accumulation of the material during transportation.

[0033] Specifically, the auger module 2 is driven by a first driving member 41, that is, the first driving member 41 drives the first shaft body 21 to rotate.

[0034] Specifically, referring to Figure 5 , in other embodiments, a material passing opening is formed on the blade 22. The material passing openings on the blade 22 gradually become denser and their aperture diameters gradually become larger from the discharging member 25 towards the end away from the discharging member 25.

[0035] Specifically, in other embodiments, the axial direction of the first shaft body 21 does not coincide with the axial direction of the cylinder body 24.

[0036] Specifically, a plurality of protrusions 26 are provided on the inner wall of the cylinder body 24. The plurality of protrusions 26 are arranged in an annular array on the cylinder body 24. The protrusions 26 and the cylinder body 24 are integrally formed to increase the heat receiving area of the material inside the cylinder body 24, improve the heat transfer efficiency, enable the material to be heated more uniformly and quickly during the extrusion process, thereby optimizing the extrusion molding effect, improving the quality and production efficiency of the product. At the same time, the integral forming enhances the structural strength of the cylinder body 24, improving the durability and stability of the equipment.

[0037] Specifically, the first heating member 51 is arranged at one end of the cylinder body 24 away from the discharging member 25. The first heating member 51 is an electric heating wire. The temperature of the first heating member 51 gradually increases from the end of the cylinder body 24 away from the discharging member 25 towards the end of the cylinder body 24 close to the discharging member 25. It can ensure that the material in the cylinder body 24 is gradually heated from the low-temperature area to the high-temperature area, realizing the gradient control of the temperature, avoiding the thermal degradation or thermal deformation of the material due to sudden high temperature, ensuring the quality and stability of the extruded product. At the same time, this temperature gradient design also helps the material to be uniformly heated and fully melted in the cylinder body, improving the extrusion efficiency and product quality.

[0038] Specifically, in this embodiment, the first heating member 51 realizes the gradient increase of the heating temperature from the end of the cylinder body 24 away from the discharging member 25 towards the end of the cylinder body 24 close to the discharging member 25 through the density of the electric heating wire.

[0039] Specifically, the second heating member 52 is disposed at one end of the cylinder body 24 close to the discharging member 25. The second heating member 52 is disposed around the cylinder body 24 for maintaining the internal temperature of the cylinder body 24 within the melting temperature range of the plastic material. The second heating member 52 can ensure that the material remains in a stable molten state at the end of the extrusion process, avoiding the solidification or semi-solidification of the material caused by temperature fluctuations, thereby ensuring the continuity and stability of the extrusion molding, improving the melting uniformity and extrusion quality of the material, and contributing to the production of high-quality and defect-free extrusion molding products.

[0040] Specifically, a feed hopper 31 is provided on the second frame body 12. The feeding module 3 includes a sleeve 35 rotatably disposed on the feed hopper 31. A feeding member 36 for driving the external material to fall is provided on the sleeve 35, which can achieve precise control and adjustment of the material entering the cylinder body 24. By rotating the sleeve 35, the feeding member 36 can be driven to change the falling speed and flow rate of the material, so as to flexibly adjust the supply amount of the material according to the production requirements. This not only improves the accuracy and stability of the material supply, but also helps to optimize the extrusion molding process, improve the quality and production efficiency of the product.

[0041] Specifically, in this embodiment, the feeding member 36 is a plate body, and in other embodiments, the feeding member 36 may also be a plurality of rod bodies arranged in an array.

[0042] Specifically, a second shaft body 34 is disposed inside the sleeve 35. The sleeve 35 is disposed on the second shaft body 34 via an external bolt. A second gear 33 is disposed at one end of the second shaft body 34 close to the driving module 4 and penetrates through the feed hopper 31. There are two feeding modules 3, and the second gears 33 of the two feeding modules 3 are meshed. By driving the second shaft body 34 of one feeding module 3 to rotate by the driving module 4, since the second gears 33 of the two feeding modules 3 are meshed, the other feeding module 3 can be driven to rotate synchronously, thereby realizing uniform feeding at the feeding port. This not only improves the stability and consistency of the material supply, but also helps to optimize the extrusion molding process, improve the quality and production efficiency of the product.

[0043] Specifically, a transmission member 32 is rotatably provided on the feed hopper 31. One end of the first shaft body 21 away from the discharge member 25 is provided with a first gear 23. The first gear 23 is driven by the transmission member 32 to be in transmission with the second gear 33, realizing the linkage control between the auger module 2 and the feed module 3. When the drive module 4 is started and the first shaft body 21 is driven to rotate, the first gear 23 rotates accordingly, and drives the second gear 33 to rotate through the transmission member 32, thereby driving the sleeve 35 and the blanking member 36 of the feed module 3 to rotate, realizing the uniform blanking of materials. This linkage control method not only simplifies the operation process of the equipment, improves the production efficiency, but also ensures the coordination between the material supply and the auger conveying, avoiding the extrusion molding problems caused by insufficient or excessive material supply, thereby improving the quality and stability of the extrusion molding products.

[0044] Specifically, in this embodiment, the transmission member 32 is a gear rotatably provided on the second frame body 12. In other embodiments, different diameter gear discs can also be provided on the second gear 33, and the gear discs are used for realizing different blanking rates through chain belt transmission with the first gear 23.

[0045] The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. An extrusion molding device for environmentally friendly and degradable plastics, comprising a support (1), an auger module (2) and a feed module (3) arranged on the support (1), the auger module (2) and the feed module (3) being used for conveying, mixing and feeding of external materials respectively; characterized in that: The support (1) is also provided with a driving module (4) for controlling the operating states of the auger module (2) and the feeding module (3); the auger module (2) comprises a barrel (24) for conveying and heating external materials; a heating component (5) is provided on the barrel (24); the heating component (5) comprises a first heating element (51) and a second heating element (52) provided at two ends of the barrel (24); The bracket (1) comprises a first frame body (11) and a second frame body (12) arranged on the first frame body (11); The auger module (2) comprises a first shaft (21) rotatably arranged on the second frame (12), the axial direction of the first shaft (21) not coinciding with the axial direction of the cylinder (24), a spiral blade (22) being arranged on the first shaft (21), one end of the first shaft (21) provided with the blade (22) being accommodated in the cylinder (24), and the auger module (2) further comprises a discharge member (25) arranged at the end of the cylinder (24), a material passing opening being provided on the blade (22), and the material passing opening on the blade (22) gradually becoming denser and having a gradually larger aperture from the discharge member (25) towards the end away from the discharge member (25); The first heating element (51) is a heating wire, and the number of turns of the first heating element (51) increases from sparse to dense, from one end of the cylinder (24) away from the material discharging element (25) to one end of the cylinder (24) close to the material discharging element (25); A feed hopper (31) is disposed on the second frame (12), and the feed module (3) comprises a sleeve (35) rotatably disposed on the feed hopper (31), and a material discharge member (36) is disposed on the sleeve (35) for driving external materials to discharge, and the material discharge member (36) is a plurality of rods arranged in an array; A second shaft (34) is arranged inside the sleeve (35), and the sleeve (35) is arranged on the second shaft (34) via external bolts. An end of the second shaft (34) close to the driving module (4) passes through the feed hopper (31). The second shaft (34) is provided with a second gear (33), and gear plates of different diameters are arranged on the second gear (33). A first gear (23) is arranged on the first shaft (21), and a chain belt is used to transmit between the gear plate and the first gear (23) to achieve different material discharge rates.

2. The extrusion molding equipment for environmentally friendly and degradable plastics according to claim 1, characterized in that: The first frame (11) and the second frame (12) are used for arranging the auger module (2) and the feed module (3) respectively; the feed module (3) is arranged on the second frame (12); the feed module (3) is connected to the auger module (2) for realizing external material supply.

3. The extrusion molding equipment for environmentally friendly and degradable plastics according to claim 1, characterized in that: The discharge piece (25) is connected to the cylinder (24) via an external connection piece, and a sealing piece for sealing is provided between the discharge piece (25) and the cylinder (24).

4. The extrusion molding equipment for environmentally friendly and degradable plastics according to claim 1, characterized in that: The inner wall of the cylinder (24) is provided with a protrusion (26), a plurality of protrusions (26) are provided, and the plurality of protrusions (26) are arranged on the cylinder (24) in a ring array, and the protrusions (26) and the cylinder (24) are formed via an integral structure.

5. The extrusion molding equipment for environmentally friendly and degradable plastics according to claim 3, characterized in that: The first heating element (51) is arranged at an end of the barrel (24) away from the discharge element (25). The first heating element (51) is an electric heating wire. The temperature of the first heating element (51) gradually increases from the end of the barrel (24) away from the discharge element (25) to the end of the barrel (24) close to the discharge element (25).

6. The extrusion molding equipment for environmentally friendly and degradable plastics according to claim 3, characterized in that: The second heating member (52) is arranged at one end of the barrel (24) close to the discharge member (25). The second heating member (52) is arranged around the barrel (24) and is used to maintain the internal temperature of the barrel (24) within the melting temperature range of the plastic material.

7. The extrusion molding equipment for environmentally friendly and degradable plastics according to claim 1, characterized in that: Two feeding modules (3) are provided, and the second gears (33) of the two feeding modules (3) are meshed with each other.

Images