Extrusion screw for engineering plastic processing

Abstract

The utility model relates to the technical field of plastic processing, in particular to an extrusion screw for engineering plastic processing, which comprises an extrusion screw body, a connecting pipe is mounted on one side of the extrusion screw body, a rubber pad is lapped on one side of the connecting pipe, and a lapping plate and a connecting plate are mounted at two ends of one side of the rubber pad respectively. An electrifying connector is installed at one end of the connecting plate, a heating pipeline is arranged in the extrusion screw main body, a heating pipe is installed at the end, close to a port of the connecting pipe, of the connecting plate, the heating pipe extends to the inner side of the heating pipeline, and one end of the lap joint plate is fixedly connected with the outer wall of the connecting plate; the lap joint plate is connected with the connecting pipe in a clamped mode through the connecting mechanism. The device is simple in structure and convenient to operate, a heating pipe and a power-on connector can be disassembled and assembled by a worker only through pressing and twisting, so that the worker can repair and maintain components in time, the practicability is improved, and the subsequent processing efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, specifically to an extrusion screw for processing engineering plastics. Background Technology

[0002] Engineering plastics are plastics used as engineering materials and to replace metals in the manufacture of machine parts. They have excellent comprehensive properties, including high rigidity, low creep, high mechanical strength, good heat resistance, and good electrical insulation. They can be used for a long time in harsh chemical and physical environments and can replace metals as engineering structural materials. However, they are more expensive and have a smaller production volume. The processing of engineering plastics requires the use of extruders. The extrusion screw is a key component of the plastic extruder. However, due to imperfect structural design, traditional extrusion screws cannot pass additional heat to the raw material, resulting in low processing efficiency and the engineering plastics being prone to premature solidification during extrusion, leading to a decline in the quality of the processed engineering plastics.

[0003] To address the aforementioned technical problems, Chinese Patent No. CN209552414U discloses an extrusion screw for engineering plastic processing, comprising an extrusion screw body. The extrusion screw body has a heating channel arranged along the axial direction inside. One end of the heating channel is set as an open structure, and the other end of the heating channel is set as a closed structure. A heating tube is provided inside the heating channel.

[0004] Although the aforementioned existing technical solution adds a heating tube structure to the traditional extrusion screw, allowing the engineering plastic raw materials to melt rapidly under the dual heat provided by the heating tube and the extruder, thereby improving the processing efficiency of the device, the heating tube is directly encapsulated inside the heating channel. When a component fails, it is difficult for the staff to quickly remove the heating tube for replacement and maintenance, which in turn affects the subsequent work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an extrusion screw for engineering plastics processing, which solves the problem mentioned in the background art where the heating tube is directly encapsulated inside the heating channel, making it difficult for workers to quickly remove and replace the heating tube when a component fails, thus affecting subsequent work efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An extrusion screw for engineering plastic processing includes an extrusion screw body. A connecting pipe is installed on one side of the extrusion screw body, and a rubber pad is overlapped on one side of the connecting pipe. An overlap plate and a connecting plate are respectively installed at both ends of one side of the rubber pad. An electrical connector is installed at one end of the connecting plate. A heating pipe is opened inside the extrusion screw body. A heating pipe is installed at one end of the connecting plate near the port of the connecting pipe, and the heating pipe extends to the inside of the heating pipe. One end of the overlap plate is fixedly connected to the outer wall of the connecting plate. The overlap plate is engaged with the connecting pipe through a connecting mechanism. The connecting mechanism includes a clamping component, a deflection component, and a protective component. The clamping component is used to clamp the heating pipe inside the extrusion screw body. The deflection component is used to unlock the heating pipe. The protective component is used to enclose the operating parts of the deflection component.

[0008] As a preferred embodiment of this utility model, the clamping assembly includes a through hole at one end of the rubber pad, an extension hole at the other end of the rubber pad located at the port of the connecting pipe, a fixing seat installed at one end of the outer wall of the connecting pipe, a slot on the side of the fixing seat near the connecting plate, a locking seat slidably connected to the slot on one side of the overlapping plate, an installation groove inside the fixing seat located on one side of the slot, a deflection rod rotatably connected inside the installation groove, and an overlapping seat sleeved on the outside of the deflection rod.

[0009] As a preferred embodiment of this utility model, the overlapping surfaces of the card seat and the overlapping seat are provided with guide slopes, the two sets of guide slopes are in contact with each other, the inside of the card seat is provided with a locking groove at its guide slope, the inside of the overlapping seat is provided with a spring groove at its guide slope, the inner wall of the spring groove is rotatably connected with a spring rod, the outer side of the spring rod is fitted with a spring plate, and one side of the spring plate is provided with a spring pressure slope that fits with the guide slope.

[0010] As a preferred embodiment of this utility model, the deflection assembly includes an extension groove located inside the fixed base on one side of the mounting groove, a torsion plate is installed at one end of the deflection rod extending to the inside of the extension groove, a limiting plate is installed at one end of the overlapping base, a limiting groove is opened on one side of the inner wall of the mounting groove, and the limiting groove and the limiting plate are slidably connected.

[0011] As a preferred embodiment of this utility model, the deflection assembly includes an extension groove located inside the fixed base on one side of the mounting groove, a torsion plate is installed at one end of the deflection rod extending to the inside of the extension groove, a limiting plate is installed at one end of the overlapping base, a limiting groove is opened on one side of the inner wall of the mounting groove, and the limiting groove and the limiting plate are slidably connected.

[0012] As a preferred embodiment of this utility model, the protective component includes a movable groove on the outer wall of the fixed base located on one side of the extension groove. The movable groove is connected to the inner side of the extension groove. The length of the movable groove is greater than the length of the extension groove. A movable plate is slidably connected to the inner side of the movable groove. The length of the movable plate is less than the length of the movable groove. The length of the movable plate is greater than the length of the extension groove. Synchronization grooves are provided on both sides of the inner wall of the movable groove.

[0013] As a preferred embodiment of this utility model, both ends of the movable plate are equipped with synchronization blocks that are slidably connected to the synchronization groove. A drag groove is provided on the outward side of the movable plate. A first magnetic component is embedded in one end of the movable plate, and a second magnetic component corresponding to the first magnetic component is embedded in one side of the inner wall of the extension groove. The first magnetic component and the second magnetic component have opposite magnetic properties and attract each other.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the heating tube is clamped inside the extrusion screw body by a clamping component, the deflection component unlocks the heating tube, and the protective component encloses the operating parts of the deflection component. The structure is simple and easy to operate. The operator only needs to press and twist to complete the disassembly and assembly of the heating tube and the power connector, so that the operator can inspect and maintain the parts in a timely manner, which increases the practicality and ensures the efficiency of subsequent processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the fixing base of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the connection mechanism of this utility model.

[0019] In the diagram: 1. Extrusion screw body; 2. Connecting pipe; 3. Rubber pad; 4. Overlap plate; 5. Connecting plate; 6. Card seat; 7. Deflection rod; 8. Overlap seat; 9. Guide slope; 10. Rebound plate; 11. Torsion spring; 12. First spring; 13. Torsion plate; 14. Limiting plate; 15. Movable plate; 16. Synchronization groove; 17. First magnetic component; 18. Fixed seat; 19. Power connector; 20. Second magnetic component. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Example:

[0022] Please see Figures 1-3 This utility model provides a technical solution:

[0023] An extrusion screw for processing engineering plastics includes an extrusion screw body 1. A connecting pipe 2 is installed on one side of the extrusion screw body 1, and a rubber pad 3 overlaps on one side of the connecting pipe 2. An overlap plate 4 and a connecting plate 5 are respectively installed at both ends of one side of the rubber pad 3. A power connector 19 is installed at one end of the connecting plate 5. A heating pipe is formed inside the extrusion screw body 1. A heating pipe is installed at one end of the connecting plate 5 near the port of the connecting pipe 2, extending into the inner side of the heating pipe. One end of the overlap plate 4 is fixedly connected to the outer wall of the connecting plate 5. The overlap plate 4 is engaged with the connecting pipe 2 via a connecting mechanism, which includes a clamping component, a deflection component, and a... The device includes a protective assembly, a clamping assembly to secure the heating tube inside the extrusion screw body 1, a deflection assembly to unlock the heating tube, and a protective assembly to enclose the operating parts of the deflection assembly. In use, the device uses the clamping assembly to secure the heating tube inside the extrusion screw body 1, the deflection assembly to unlock the heating tube, and the protective assembly to enclose the operating parts of the deflection assembly. The structure is simple and easy to operate; operators only need to press and twist to assemble and disassemble the heating tube and the power connector 19, allowing for timely inspection and maintenance of the components, increasing practicality and ensuring subsequent processing efficiency.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the clamping assembly includes a through hole at one end of the rubber pad 3, and an extension hole at the other end of the rubber pad 3 located at the port of the connecting pipe 2. A fixing seat 18 is installed at one end of the outer wall of the connecting pipe 2. A slot is provided on the side of the fixing seat 18 near the connecting plate 5. A clamping seat 6 is installed on one side of the overlapping plate 4 and is slidably connected to the slot. An installation groove is provided inside the fixing seat 18 on one side of the slot. A deflecting rod 7 is rotatably connected inside the installation groove. An overlapping seat 8 is sleeved on the outside of the deflecting rod 7. Guide slopes 9 are provided on the overlapping surfaces of the clamping seat 6 and the overlapping seat 8. The two sets of guide slopes 9 fit together. A locking groove is provided inside the clamping seat 6 at its guide slope 9. Inside the connector 8, a spring groove is provided at its guide slope 9. A spring rod is rotatably connected to the inner wall of the spring groove. A spring plate 10 is sleeved on the outer side of the spring rod. A spring pressure slope that fits against the guide slope 9 is provided on one side of the spring plate 10. First, the heating tube is inserted into the port of the connecting tube 2, allowing it to enter the inner side of the heating channel. The card seat 6 slides into the inner side of the mounting groove through the card groove, continuously squeezing the connecting plate 5 and the overlapping plate 4 and forcing the rubber pad 3 to contract. The card seat 6 is continuously pushed and comes into contact with the overlapping seat 8 inside the mounting groove. The two sets of guide slopes 9 squeeze each other, forcing the overlapping seat 8 and the deflection rod 7 to rotate around the center. At the same time as the rotation, the first spring 12 is stretched and unfolded.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a torsion spring 11 is installed between the rebound rod and the inner wall of the rebound groove. A groove is opened on one side of the overlapping seat 8 on one side of its guide slope 9. A first spring 12 is installed between the groove and the inner wall of the mounting groove. Then, after the card seat 6 continues to move, it contacts the rebound plate 10. The guide slope 9 contacts the spring pressure slope, forcing the torsion spring 11 to drive the rebound plate 10 to retract to the inner side of the rebound groove. After the locking groove is pushed to the rebound groove, the torsion spring 11 is no longer obstructed and drives the rebound plate 10 to pop out to the inner side of the locking groove. Then, the overlapping plate 4 and the connecting plate 5 are released, and the rubber pad 3 will rebound a distance and drive the card seat 6 to move back, so that the inner wall of the locking groove and one side of the rebound plate 10 reach the locking effect. The rubber pad 3 can increase the sealing of the contact point.

[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the protective assembly includes a movable groove on the outer wall of the fixed base 18 located on one side of the extension groove. The movable groove is connected to the inner side of the extension groove, and the length of the movable groove is greater than the length of the extension groove. A movable plate 15 is slidably connected to the inner side of the movable groove. The length of the movable plate 15 is less than the length of the movable groove and greater than the length of the extension groove. Synchronization grooves 16 are provided on both sides of the inner wall of the movable groove. Synchronization blocks that are slidably connected to the synchronization grooves 16 are installed at both ends of the movable plate 15. A drag groove is provided on the outward side of the movable plate 15. A first magnetic element 17 is embedded in one end of the movable plate 15. A second magnetic element 20 corresponding to the first magnetic element 17 is embedded in one side of the inner wall of the extension groove. The first magnetic element 17 and the second magnetic element 20 have opposite magnetic properties and attract each other. Furthermore, after the assembly is completed, the drag groove is engaged with the synchronization groove 16 and the synchronization block to move the movable plate 15 close to the inner wall of the extension groove, so that the first magnetic element 17 and the second magnetic element 20 are attracted to cover the torsion plate 13, preventing the parts from being loosened by accidental contact by the staff.

[0027] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the deflection assembly includes an extension groove located inside the mounting slot on one side of the fixed base 18. A torsion plate 13 is installed at one end of the deflection rod 7 extending into the extension groove. A limiting plate 14 is installed at one end of the overlapping base 8. A limiting groove is opened on one side of the inner wall of the mounting slot. The limiting groove and the limiting plate 14 are slidably connected. Furthermore, when disassembling and separating, the movable plate 15 can be unfolded again to expose the torsion plate 13. The torsion plate 13 is pinched and, together with the limiting plate 14 and the limiting groove, the deflection rod 7 is rotated, causing the overlapping base 8 to rotate around the deflection rod 7 again. After the spring plate 10 moves away from the inner wall of the locking groove, the rubber pad 3 fully rebounds and pushes the overlapping plate 4 out a small distance. The card seat 6 is moved away from the overlapping base 8. At this time, the heating tube can be taken out together with the power connector 19 for inspection and maintenance.

[0028] The implementation principle of an extrusion screw for engineering plastic processing in this application embodiment is as follows: The heating tube is inserted into the port of the connecting tube 2, allowing it to enter the inner side of the heating channel. The retainer 6 slides into the mounting groove through the retaining groove, continuously compressing the connecting plate 5 and the overlapping plate 4, forcing the rubber pad 3 to contract. The retainer 6 is continuously pushed and contacts the overlapping seat 8 inside the mounting groove. The two sets of guide slopes 9 compress each other, forcing the overlapping seat 8 and the deflection rod 7 to rotate around the center. Simultaneously, the first spring 12 is stretched and unfolded. After the retainer 6 continues to move, it contacts the spring plate 10. The guide slope 9 contacts the spring pressure slope, forcing the torsion spring 11 to drive the spring plate 10 back to the inside of the spring groove. After the locking groove is pushed to the spring groove, the torsion spring 11 is no longer obstructed, causing the spring plate 10 to pop out to the inside of the locking groove. Then, the overlapping plate 4 and the connecting plate 5 are released, and the rubber pad 3... It will rebound a certain distance and drive the card seat 6 back, so that the inner wall of the locking groove and the side of the rebound plate 10 reach the locking effect. The rubber pad 3 can increase the sealing of the contact point. After the assembly is completed, the drag groove is fastened and the synchronous groove 16 and synchronous block drive the movable plate 15 close to the inner wall of the extension groove, so that the first magnetic component 17 and the second magnetic component 20 are attracted to cover the torsion plate 13, so as to prevent the staff from accidentally touching it and causing the parts to loosen. When disassembling and separating, the movable plate 15 can be unfolded again to expose the torsion plate 13. After pinching the torsion plate 13, the limit plate 14 and the limit groove drive the deflection rod 7 to rotate, so that the overlapping seat 8 rotates around the deflection rod 7 again. After the rebound plate 10 moves away from the inner wall of the locking groove, the rubber pad 3 fully rebounds and pushes the overlapping plate 4 out a small distance. The card seat 6 is driven away from the overlapping seat 8. At this time, the heating tube and the power connector 19 can be taken out together for inspection and maintenance.

[0029] The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extrusion screw for processing engineering plastics, comprising an extrusion screw body (1), characterized in that: A connecting pipe (2) is installed on one side of the extrusion screw body (1). A rubber pad (3) is overlapped on one side of the connecting pipe (2). An overlapping plate (4) and a connecting plate (5) are respectively installed at both ends of one side of the rubber pad (3). An electrical connector (19) is installed at one end of the connecting plate (5). A heating pipe is opened inside the extrusion screw body (1). A heating pipe is installed at one end of the connecting plate (5) near the port of the connecting pipe (2). The heating pipe extends to the inside of the heating pipe. One end of the overlapping plate (4) is fixedly connected to the outer wall of the connecting plate (5). The overlapping plate (4) is engaged with the connecting pipe (2) through a connecting mechanism. The connecting mechanism includes a clamping component, a deflection component, and a protective component. The clamping component is used to clamp the heating pipe inside the extrusion screw body (1). The deflection component is used to unlock the heating pipe. The protective component is used to enclose the operating parts of the deflection component.

2. The extrusion screw for engineering plastics processing according to claim 1, characterized in that: The clamping assembly includes a through hole at one end of the rubber pad (3), and an extension hole at the other end of the rubber pad (3) located at the port of the connecting pipe (2). A fixing seat (18) is installed at one end of the outer wall of the connecting pipe (2). A slot is provided on the side of the fixing seat (18) near the connecting plate (5). A card seat (6) that is slidably connected to the slot is installed on one side of the overlapping plate (4). An installation groove is provided inside the fixing seat (18) on one side of the slot. A deflection rod (7) is rotatably connected to the inside of the installation groove. An overlapping seat (8) is sleeved on the outside of the deflection rod (7).

3. The extrusion screw for engineering plastics processing according to claim 2, characterized in that: The overlapping surfaces of the card holder (6) and the overlapping seat (8) are provided with guide slopes (9), and the two sets of guide slopes (9) fit together. The inside of the card holder (6) is provided with a locking groove at its guide slope (9), and the inside of the overlapping seat (8) is provided with a spring groove at its guide slope (9). The inner wall of the spring groove is rotatably connected with a spring rod, and a spring plate (10) is sleeved on the outside of the spring rod. One side of the spring plate (10) is provided with a spring pressure slope that fits with the guide slope (9).

4. The extrusion screw for engineering plastics processing according to claim 3, characterized in that: A torsion spring (11) is installed between the rebound rod and the inner wall of the rebound groove. A groove is provided on one side of the overlapping seat (8) on one side of its guide slope (9). A first spring (12) is installed between the groove and the inner wall of the mounting groove.

5. An extrusion screw for processing engineering plastics according to claim 4, characterized in that: The deflection assembly includes an extension groove located inside the mounting slot on one side of the fixed seat (18), a torsion plate (13) is installed at one end of the deflection rod (7) extending to the inside of the extension groove, a limiting plate (14) is installed at one end of the overlapping seat (8), a limiting groove is opened on one side of the inner wall of the mounting slot, and the limiting groove and the limiting plate (14) are slidably connected.

6. An extrusion screw for processing engineering plastics according to claim 5, characterized in that: The protective component includes a movable groove on the outer wall of the fixed base (18) located on one side of the extension groove. The movable groove is connected to the inner side of the extension groove. The length of the movable groove is greater than the length of the extension groove. A movable plate (15) is slidably connected to the inner side of the movable groove. The length of the movable plate (15) is less than the length of the movable groove. The length of the movable plate (15) is greater than the length of the extension groove. Synchronization grooves (16) are provided on both sides of the inner wall of the movable groove.

7. An extrusion screw for processing engineering plastics according to claim 6, characterized in that: Both ends of the movable plate (15) are equipped with synchronization blocks that are slidably connected to the synchronization groove (16). The outward-facing side of the movable plate (15) is provided with a drag groove. One end of the movable plate (15) is embedded with a first magnetic component (17). One side of the inner wall of the extension groove is embedded with a second magnetic component (20) corresponding to the first magnetic component (17). The first magnetic component (17) and the second magnetic component (20) have opposite magnetic properties and attract each other.

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