Extrusion screw for engineering plastic processing

Abstract

The utility model relates to the technical field of extrusion screws, and discloses an extrusion screw for engineering plastic processing, which comprises a screw body. According to the extrusion screw rod for engineering plastic processing, a connecting block at one end of the extrusion screw rod is placed at a designated position, a screw rod body is fixed through a fixing assembly, a screw is matched with a fixing disc so that the connecting block can be fixed into a clamping groove, a connecting disc is fixed to one side of the fixing disc through the connecting block, and the fixing disc is rotated; the fixing disc drives the connecting disc to rotate, the connecting disc drives the screw body to rotate, then plastic needing to be extruded is placed on the extrusion screw, the heating pipeline is used for heating the plastic, the plastic is extruded and conveyed through the conveying section, the plastic is extruded through the compression section, and then materials are quantified through the metering section. According to the device, the screw body is convenient to replace, the extrusion screw which is stained with a large amount of plastic and cannot operate normally can be cleaned in time, and actual application and operation are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of extrusion screws, in particular to an extrusion screw for processing engineering plastics. Background Art

[0002] Engineering plastics can be used as engineering materials and plastics to replace metals to manufacture machine parts. Engineering plastics have excellent comprehensive properties, high rigidity, low creep, high mechanical strength, good heat resistance, good electrical insulation, and can be used for a long time in harsh chemical and physical environments. However, the existing extrusion screw does not have a structure that is easy to install, resulting in reduced work efficiency.

[0003] After searching, a Chinese patent discloses an extrusion screw (authorization announcement number CN 206383463 U), which includes a connecting section, a feeding section, a compression section, a metering section and a mixing section arranged in sequence. The length of the compression section is set to 15%-30% of the total length of the extrusion screw, and a gap is formed between the end of the compression section and the starting end of the metering section; a pressure reduction section is also provided at the gap. By reducing the length of the compression section from 50% of the original total length of the extrusion screw to 15%-30%, the length of the compression section is reduced, and a pressure reduction section is added between the compression section and the metering section, so that the pressure distribution on the extrusion screw is more uniform. In addition, since the length of the compression section is reduced, the compression section is closer to the reduction box, so that the radial force on the extrusion screw at the compression section is closer to the reduction box. Therefore, the force state of the extrusion screw is better and wear is reduced. In addition, the spiral groove of the metering section can be set deeper, so as to increase the extrusion volume per unit time and improve production efficiency.

[0004] However, in actual application, the device lacks a replaceable component structure, resulting in residual material sticking to the outside of the extrusion screw after the extruder screw extrude the material, thereby affecting its use. It needs to be cleaned and the screw replaced in time, which reduces work efficiency and is not conducive to actual application and operation. Summary of the invention

[0005] The utility model aims to provide an extrusion screw for processing engineering plastics to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an extrusion screw for engineering plastic processing, comprising a screw body, the outer side of the screw body is equidistantly fixedly connected with a threaded disk, the interior of the screw body is provided with an installation groove, the interior of the installation groove is provided with a heating pipe, the screw body is composed of a conveying section, a compression section, a discharge head and a metering section, the compression section is located between the conveying section and the metering section, the metering section is located between the discharge head and the compression section, one end of the screw body is fixedly connected with a connecting disk, one side of the connecting disk is provided with a fixed disk, the fixed disk is rotatably connected to one side of an external screw extruder, a fixing component is provided between the fixing disk and the connecting disk, and the fixing component is used to fix the connecting disk.

[0007] Through the above technical scheme, the connecting block at one end of the extrusion screw is placed at a specified position, the screw body is fixed by a fixing assembly, the connecting block is fixed inside the card slot by screws and a fixing disk, the connecting disk is fixed to one side of the fixing disk by the connecting block, the power supply is connected, the fixing disk is rotated, the connecting disk is driven to rotate by the fixing disk, the screw body is driven to rotate by the connecting disk, and then the plastic to be extruded is placed on the corresponding position of the extrusion screw, the plastic is heated by a heating pipe, extruded and conveyed by a conveying section, extruded by a compression section, and then the material is quantified by a metering section and extruded through a discharge head. The device is easy to replace, which is conducive to timely cleaning of the extrusion screw that cannot operate normally due to a large amount of plastic, and is conducive to practical application and operation.

[0008] Preferably, the fixing assembly includes screws, thread grooves, card slots and connecting blocks, the card slots are both opened at both ends of the fixing disk close to the connecting disk, the connecting blocks are both fixedly connected to the two ends of the connecting disk, the connecting blocks are used in conjunction with the corresponding card slots, the thread grooves are both opened inside the connecting blocks, the screws pass through the fixing disk and one end thereof extends into the interior of the fixing disk, and the screws are threadedly connected to the corresponding thread grooves.

[0009] Through the above technical solution, the connection block is fixed inside the slot by screws and the fixing disk, and the connection disk is fixed to one side of the fixing disk by the connection block, so that the fixing disk drives the connection disk to rotate.

[0010] Preferably, a power block is fixedly connected inside the connection plate, the power block is electrically connected to the heating pipe, and the power block is electrically connected to the control device.

[0011] Through the above technical solution, the power block is used to provide power to the heating pipe, so that the plastic can be heated, and the power block is powered by external control equipment to control it to work.

[0012] Preferably, a high temperature resistant pad is equidistantly and fixedly connected to the inner wall of the installation groove, and the high temperature resistant pad is used in conjunction with the heating pipe.

[0013] Through the above technical solution, a high temperature resistant pad is used to prevent the screw body from bumping during rotation.

[0014] Preferably, the screw body is made of high-speed steel, and the outer diameter of the compression section is smaller than the outer diameters of the conveying section and the metering section.

[0015] Through the above technical solution, using high-speed steel as the material of the screw body is beneficial to improving the wear resistance and corrosion resistance of the extrusion screw, and using the outer diameter of the compression section to be smaller than the outer diameters of the conveying section and the metering section is beneficial to the compression and extrusion of the plastic.

[0016] Preferably, a central axis on one side of the fixed disk is fixedly connected to a motor, and the motor is electrically connected to an external control device.

[0017] Through the above technical solution, the fixed disk is driven to rotate by the motor, and the motor is controlled to work by the external control device.

[0018] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the connecting block at one end of the extrusion screw is placed at a designated position, the screw body is fixed by a fixing assembly, the connecting block is fixed inside the card slot by a screw in cooperation with a fixing disk, the connecting disk is fixed to one side of the fixing disk by a connecting block, the power supply is connected, the fixing disk is rotated, the connecting disk is driven to rotate by the fixing disk, the screw body is driven to rotate by the connecting disk, and then the plastic to be extruded is placed at the corresponding position of the extrusion screw, the plastic is heated by a heating pipe, extruded and conveyed by a conveying section, extruded by a compression section, and then the material is quantified by a metering section and extruded by a discharge head. The device is easy to replace, which is conducive to timely cleaning of the extrusion screw that cannot operate normally due to a large amount of plastic, and is conducive to practical application and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is the front view of the utility model;

[0021] Figure 3 This is a schematic diagram of the screw body structure of the utility model.

[0022] Figure 4 For this utility model Figure 2 Enlarged view of point A in the middle.

[0023] Among them: 1. Screw body; 101. Conveying section; 102. Compression section; 103. Metering section; 2. Threaded disk; 3. Motor; 4. Fixed disk; 5. Screw; 6. Discharge head; 7. High temperature resistant pad; 8. Heating pipe; 9. Connecting block; 10. Power block; 11. Connecting disk; 12. Threaded groove; 13. Mounting groove; 14. Card slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , an extrusion screw for processing engineering plastics, including a screw body 1, a threaded disk 2 is equidistantly fixedly connected to the outside of the screw body 1, the threaded disk 2 is used to cooperate with the screw body 1 to extrude plastic, an installation groove 13 is opened inside the screw body 1, a heating pipe 8 is arranged inside the installation groove 13, and the heating pipe 8 is used to heat the material, the screw body 1 is composed of a conveying section 101, a compression section 102, a discharge head 6 and a metering section 103, the compression section 102 is located between the conveying section 101 and the metering section 103, and the metering section 103 is located between the discharge head 6 and the compression section 102, one end of the screw body 1 is fixedly connected to a connecting disk 11, a fixed disk 4 is arranged on one side of the connecting disk 11, the fixed disk 4 is rotatably connected to one side of an external screw extruder, a fixing component is arranged between the fixing disk 4 and the connecting disk 11, and the fixing component is used to fix the connecting disk 11.

[0026] Through the above technical scheme, the connecting block 9 at one end of the extrusion screw is placed at a specified position, the screw body 1 is fixed by a fixing assembly, the connecting block 9 is fixed inside the card slot 14 by means of screws 5 and the fixing disk 4, the connecting disk 11 is fixed to one side of the fixing disk 4 by means of the connecting block 9, the power supply is connected, the fixing disk 4 is rotated, the connecting disk 11 is driven to rotate by the fixing disk 4, and the screw body 1 is driven to rotate by the connecting disk 11, and then the plastic to be extruded is placed at the corresponding position of the extrusion screw, the plastic is heated by the heating pipe 8, extruded and conveyed by the conveying section 101, extruded by the compression section 102, and then the material is quantified by the metering section 103, and extruded by the discharge head 6. The device is easy to replace, which is conducive to timely cleaning of the extrusion screw that cannot operate normally due to a large amount of plastic, and is conducive to practical application and operation.

[0027] Specifically, the fixing components include screws 5, threaded grooves 12, card slots 14 and connecting blocks 9. The card slots 14 are both opened at the two ends of the fixing disk 4 close to the connecting disk 11. The connecting blocks 9 are fixedly connected to the two ends of the connecting disk 11. The connecting blocks 9 are used in conjunction with the corresponding card slots 14. The threaded grooves 12 are all opened inside the connecting blocks 9. The screws 5 pass through the fixing disk 4 and one end thereof extends to the inside of the fixing disk 4. The screws 5 are threadedly connected to the corresponding threaded grooves 12.

[0028] Through the above technical solution, the screws 5 are used in conjunction with the fixing disk 4 to fix the connecting block 9 inside the slot 14, and the connecting disk 11 is fixed to one side of the fixing disk 4 by the connecting block 9, so that the fixing disk 4 drives the connecting disk 11 to rotate.

[0029] Specifically, the connection plate 11 has a power block 10 fixedly connected to the inside thereof, the power block 10 is electrically connected to the heating pipe 8, and the power block 10 is electrically connected to the control device. The power block 10 is used to provide power to the heating pipe 8 so that the plastic can be heated, and the power block 10 is energized by an external control device so as to control it to work.

[0030] Specifically, the inner wall of the mounting groove 13 is equidistantly fixedly connected with a high temperature resistant pad 7, which is used in conjunction with a heating pipe 8 to prevent the screw body 1 from bumping during rotation.

[0031] Specifically, the central axis on one side of the fixed disk 4 is fixedly connected with the motor 3, and the motor 3 is electrically connected to the external control device. The motor 3 is used to drive the fixed disk 4 to rotate, and the external control device is used to control the motor 3 to work.

[0032] Specifically, the material of the screw body 1 is high-speed steel, and the outer diameter of the compression section 102 is smaller than the outer diameters of the conveying section 101 and the metering section 103. Using high-speed steel as the material of the screw body 1 is beneficial to improving the wear resistance and corrosion resistance of the extrusion screw. Using the outer diameter of the compression section 102 smaller than the outer diameters of the conveying section 101 and the metering section 103 is beneficial to the compression and extrusion of the plastic.

[0033] When in use, the connecting block 9 at one end of the extrusion screw is placed inside the designated slot 14, the connecting block 9 is fixed inside the slot 14 by means of the screw 5 and the fixing disk 4, the connecting disk 11 is fixed to one side of the fixing disk 4 by means of the connecting block 9, the power supply is connected, the motor 3 is started by means of an external control device, the fixing disk 4 is driven to rotate by means of the motor 3, the connecting disk 11 is driven to rotate by means of the fixing disk 4, the screw body 1 is driven to rotate by means of the connecting disk 11, the heating pipe 8 is powered on by means of an external control device, then the plastic to be extruded is placed at the corresponding position of the extrusion screw, the plastic is heated by means of the heating pipe 8, the plastic is extruded and conveyed by means of the conveying section 101, the plastic is extruded by means of the compression section 102, then the material is quantitatively measured by means of the metering section 103, and extruded by means of the discharge head 6;

[0034] The device is convenient for replacement, and is helpful for timely cleaning of the extrusion screw which is stained with a large amount of plastic and cannot operate normally, and is beneficial for practical application and operation.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An extrusion screw for processing engineering plastics, comprising a screw body (1), characterized in that: The screw body (1) is equidistantly and fixedly connected to the outside of the screw body (1), a mounting groove (13) is provided inside the screw body (1), and a heating pipe (8) is provided inside the mounting groove (13). The screw body (1) is composed of a conveying section (101), a compression section (102), a discharge head (6) and a metering section (103), wherein the compression section (102) is located between the conveying section (101) and the metering section (103), and the metering section (103) is located between the discharge head (6) and the compression section (102). One end of the screw body (1) is fixedly connected to a connecting disk (11), and a fixed disk (4) is provided on one side of the connecting disk (11). The fixed disk (4) is rotatably connected to one side of an external screw extruder, and a fixing component is provided between the fixing disk (4) and the connecting disk (11), and the fixing component is used to fix the connecting disk (11).

2. The extrusion screw for processing engineering plastics according to claim 1, characterized in that: The fixing assembly comprises a screw (5), a thread groove (12), a clamping groove (14) and a connecting block (9); the clamping groove (14) is provided at both ends of the fixing plate (4) close to the connecting plate (11); the connecting blocks (9) are fixedly connected to both ends of the connecting plate (11); the connecting blocks (9) are used in conjunction with the corresponding clamping groove (14); the thread groove (12) is provided inside the connecting block (9); the screw (5) passes through the fixing plate (4) and one end thereof extends into the inside of the fixing plate (4); and the screw (5) is threadedly connected to the corresponding thread groove (12).

3. The extrusion screw for processing engineering plastics according to claim 1, characterized in that: A power block (10) is fixedly connected inside the connection plate (11), the power block (10) is electrically connected to the heating pipe (8), and the power block (10) is electrically connected to the control device.

4. The extrusion screw for processing engineering plastics according to claim 1, characterized in that: The inner wall of the installation groove (13) is fixedly connected with a high temperature resistant pad (7) at equal intervals, and the high temperature resistant pad (7) is used in conjunction with the heating pipe (8).

5. The extrusion screw for processing engineering plastics according to claim 1, characterized in that: The material of the screw body (1) is high-speed steel, and the outer diameter of the compression section (102) is smaller than the outer diameters of the conveying section (101) and the metering section (103).

6. The extrusion screw for processing engineering plastics according to claim 1, characterized in that: A motor (3) is fixedly connected to a central axis on one side of the fixed disk (4), and the motor (3) is electrically connected to an external control device.

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