A high-temperature resistant plastic extrusion processing machine

Abstract

This utility model discloses a high-temperature resistant plastic extrusion processing machine in the field of plastic extrusion technology. It includes an extrusion sleeve and an internally installed conveying screw. An extrusion nozzle is installed at the extrusion end of the extrusion sleeve. A mica heating ring is positioned on the outer side of the extrusion sleeve near the extrusion nozzle. A heat dissipation sleeve is positioned on the outer side of the other end of the extrusion sleeve. A support base is positioned on one side of the heat dissipation sleeve, and a second support base is positioned on the other side. Insertion mounting holes are correspondingly provided on the outer walls of both the heat dissipation sleeve and the extrusion sleeve. The lower end of the feeding hopper is inserted into the insertion mounting hole. The mica heating ring on the outer side of the extrusion sleeve is an external structure, and its installation position and number are adjustable for easy maintenance. The support base and heat dissipation sleeve at the non-extrusion end of the extrusion sleeve effectively improve the heat dissipation performance of the power end and reduce the impact of high temperatures on the power transmission components.

Description

Technical Field

[0001] This utility model belongs to the field of plastic extrusion technology, specifically, it relates to a high-temperature resistant plastic extrusion processing machine. Background Technology

[0002] Extrusion molding is one of the important molding methods in plastic processing. Most thermoplastics can be molded using this method. Extrusion molding is carried out on an extrusion device, which is one of the main pieces of equipment in plastic molding machinery. Products produced by extrusion molding are widely used in agriculture, construction, petrochemicals, and machinery manufacturing. CN202020841450.4 discloses a plastic extrusion device for producing steel wire hydraulic hoses. The rotating conveyor rollers transport the plastic entering from the feed cylinder to the left and finally discharge it from the extrusion head, completing the plastic extrusion process. Through the coordinated use of the motor, drive wheel, belt, driven wheel, shaft, conveyor rollers, feed cylinder, and extrusion head, a high extrusion efficiency is achieved, which can meet the needs of plastic extrusion processing. However, the heating plate of the device is located inside the shell, and the internal structure is not convenient for maintenance. The entire device relies on the drive housing for support, resulting in poor structural stability. One end of the power source cannot effectively dissipate heat, which has a certain impact on the service life of the power transmission components.

[0003] In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-temperature resistant plastic extrusion processing machine. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows:

[0005] A high-temperature resistant plastic extrusion machine includes an extrusion sleeve and an internally mounted conveying screw. An extrusion nozzle is installed at the extrusion end of the extrusion sleeve. A mica heating ring is positioned on the outer side of the extrusion sleeve near the extrusion nozzle. A heat dissipation sleeve is positioned on the outer side of the other end of the extrusion sleeve. A support seat one is positioned on one side of the heat dissipation sleeve, and a support seat two is positioned on the other side. Insertion mounting holes are correspondingly provided on the outer walls of both the heat dissipation sleeve and the extrusion sleeve. The lower end of a feeding hopper is inserted into the insertion mounting hole. Both support seats one and two are fixedly mounted on a support base plate. The end of the conveying screw is connected to the output shaft of a gearbox via a coupling. An electric motor is installed at one end of the input shaft of the gearbox to provide power support for the rotation of the conveying screw.

[0006] As a further embodiment of this utility model: the gearbox is fixedly mounted on the support base plate by screws, and a mating bearing is provided at the mating position of the conveying screw and the extrusion sleeve. A uniformly distributed ring is provided on the side of the mating bearing. The uniformly distributed ring has a cavity structure. The arrangement of the mating bearing enables the rotation of the conveying screw to have good stability.

[0007] As a further improvement of this utility model: an air supply pipe is connected to the outer side of the uniform distribution ring, a groove structure adapted to the shape of the air supply pipe is provided on the second support base, a jet nozzle is provided along the circumferential direction on the side of the uniform distribution ring near the feeding hopper, and a control valve is installed on the section of the air supply pipe extending to the outside to control the gas supply.

[0008] As a further embodiment of this utility model: both the first support base and the second support base are convex-shaped structures. Each of the first support base and the second support base has an opening groove at the upper middle position. Each of the first support base and the second support base has a locking hole on the side wall corresponding to the opening groove. A locking screw is fitted into the locking hole. The cooperation between the locking hole and the locking screw is used to adjust the state of the opening groove.

[0009] As a further embodiment of this utility model: each of the first support base, the second support base, and the heat dissipation sleeve is provided with a through hole, the size of which is adapted to the outer diameter of the extrusion sleeve rod, and the extrusion sleeve rod is installed through the through hole to provide effective support for the extrusion sleeve rod.

[0010] As a further improvement of this utility model: two locking screws are symmetrically arranged on the outer wall of the heat sink sleeve. The locking screws are threadedly connected to the heat sink sleeve. The line connecting the two locking screws is perpendicular to the center line of the insertion mounting hole, which is used to lock the relative position of the extrusion sleeve rod and the heat sink sleeve.

[0011] As a further embodiment of this utility model: a supporting main unit is provided below the supporting base plate, a temperature setting knob is provided on the panel of the supporting main unit, a display screen is provided above the temperature setting knob, and a speed adjustment knob is provided on the side of the temperature setting knob. The number of temperature setting knobs and the display screen is the same as the number of mica heating coils. The working status of the mica heating coils is set by the temperature setting knob.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0013] The extrusion sleeve of this invention is provided with a mica heating ring on the outside. The mica heating ring is an external structure, and its installation position and number can be adjusted for easy maintenance. A support seat and a heat dissipation sleeve are provided at the non-extrusion end of the extrusion sleeve, which can effectively improve the heat dissipation performance of the power end and reduce the impact of high temperature on the power transmission components.

[0014] The design of the support base 1, support base 2, and heat dissipation sleeve in this utility model can effectively improve the overall structural stability of the extrusion device. The support base 1 and support base 2 are provided with opening slots, which, together with locking holes and locking screws, effectively improve the convenience and stability of the installation.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is the front view of the present invention;

[0019] Figure 3 This is a front sectional view of the present invention;

[0020] Figure 4 This is a schematic diagram of the uniformly distributed ring of this utility model;

[0021] Figure 5 This is a connection block diagram of some of the components of this utility model.

[0022] In the diagram: 1. Supporting main unit housing; 2. Supporting base plate; 3. Motor; 4. Gearbox; 5. Feeding hopper; 6. Support seat one; 7. Support seat two; 8. Heat dissipation sleeve; 9. Opening slot; 10. Extrusion sleeve rod; 11. Mica heating ring; 12. Extrusion nozzle; 13. Temperature setting knob; 14. Display screen; 15. Speed ​​adjustment knob; 16. Air supply pipe; 17. Control valve; 18. Coupling; 19. Locking hole; 20. Locking screw; 21. Conveying screw; 22. Matching bearing; 23. Distribution ring; 24. Jet nozzle; 25. Locking set screw; 26. Insertion mounting hole.

[0023] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] like Figures 1 to 5 As shown, a high-temperature resistant plastic extrusion processing machine includes an extrusion sleeve 10 and an internally installed conveying screw 21. The extrusion end of the extrusion sleeve 10 is equipped with an extrusion nozzle 12. A mica heating ring 11 is installed on the outer side of the end of the extrusion sleeve 10 near the extrusion nozzle 12. A heat dissipation sleeve 8 is installed on the outer side of the other end of the extrusion sleeve 10. A support seat 6 is installed on one side of the heat dissipation sleeve 8, and a support seat 7 is installed on the other side. Insertion mounting holes 26 are correspondingly opened on the outer walls of the heat dissipation sleeve 8 and the extrusion sleeve 10. The lower end of the feeding hopper 5 is inserted into the insertion mounting hole 26. The support seat 6 and the support seat 7 are both fixedly installed on the support base plate 2. The end of the conveying screw 21 is connected to the output shaft of the gearbox 4 through a coupling 18. A motor 3 is installed at one end of the input shaft of the gearbox 4 to provide power support for the rotation of the conveying screw 21.

[0026] The gearbox 4 is fixedly mounted on the support base plate 2 by screws. A mating bearing 22 is provided at the mating position between the conveying screw 21 and the extrusion sleeve 10. A uniformly distributed ring 23 is provided on the side of the mating bearing 22. The uniformly distributed ring 23 is a cavity structure. The setting of the mating bearing 22 makes the rotation of the conveying screw 21 have good stability.

[0027] An air supply pipe 16 is connected to the outer side of the uniform distribution ring 23. The support base 27 is provided with a groove structure that matches the shape of the air supply pipe 16. A jet nozzle 24 is provided along the circumferential direction on the side of the uniform distribution ring 23 near the feeding hopper 5. A control valve 17 is installed on the section of the air supply pipe 16 that extends to the outside to control the gas supply.

[0028] Both support base 1 6 and support base 2 7 are convex-shaped structures. Each support base 1 6 and support base 2 7 has an opening groove 9 at the upper middle position. Each support base 1 6 and support base 2 7 has a locking hole 19 on the side wall corresponding to the opening groove 9. A locking screw 20 is installed in the locking hole 19. The locking hole 19 and the locking screw 20 are used to adjust the state of the opening of the opening groove 9.

[0029] Support base 1 6, support base 2 7, and heat dissipation sleeve 8 are all provided with corresponding through holes. The size and specifications of the through holes are adapted to the outer diameter of the extrusion sleeve 10. The extrusion sleeve 10 is installed through the through holes to effectively support the extrusion sleeve 10.

[0030] Two locking screws 25 are symmetrically arranged on the outer wall of the heat sink 8. The locking screws 25 are threadedly connected to the heat sink 8. The line connecting the two locking screws 25 is perpendicular to the center line of the insertion mounting hole 26 to lock the relative position of the extrusion sleeve rod 10 and the heat sink 8.

[0031] A supporting main unit box 1 is provided below the supporting base plate 2. A temperature setting knob 13 is provided on the panel of the supporting main unit box 1. A display screen 14 is provided above the temperature setting knob 13. A speed adjustment knob 15 is provided on the side of the temperature setting knob 13. The number of temperature setting knobs 13 and display screens 14 is the same as the number of mica heating coils 11. The working status of the mica heating coils 11 is set by the temperature setting knob 13.

[0032] The working principle of this utility model is as follows:

[0033] Example 1: The number of mica heating rings 11 on the extrusion sleeve 10 can be increased as needed, with two, three, or more rings. The mica heating rings 11 are electrically connected to the stabilization setting knob and the display screen 14. The mica heating rings 11 generate heat through heating wires. With the help of external temperature control devices, such as temperature sensors and controllers, the temperature can be set. The temperature setting and control of the mica heating rings 11 adopts existing technology. The display screen 14 can display the set temperature and the real-time temperature. The mica heating rings 11 are external structures, which are easy to disassemble and repair. Due to the heating of the mica heating rings 11, the extrusion sleeve 10 is in a heated state. The power end of the extrusion sleeve 10 is provided with support seat 1 6 and support seat 2 7. A heat dissipation sleeve 8 is provided between support seat 1 6 and support seat 2 7. Both support seat 1 6 and support seat 2 7 are made of aluminum, which has good thermal conductivity and heat dissipation performance. The support base plate 2 is made of metal plate, which can accelerate the heat dissipation of the connection end between the conveying screw 21 and the connecting shaft, and reduce the impact of high temperature on the transmission components.

[0034] Example 2: After the plastic extrusion is completed, if there is plastic residue on the inner wall of the shell after extrusion, the compressed air tank is opened so that the compressed air in the compressed air tank is heated and then enters the uniform distribution ring 23 through the air supply pipe 16 and is ejected from the jet head 24. It flows to the left along the inner wall of the extrusion sleeve 10. During the flow, the plastic residue on the inner wall of the extrusion sleeve 10 can be removed. The compressed air tank and heater are both based on existing technology and are not specifically limited. The main support box 1 is equipped with a microcontroller unit and its supporting components.

[0035] The extrusion sleeve 10 of this utility model is provided with a mica heating ring 11 on the outside. The mica heating ring 11 is an external structure, and its installation position and number can be adjusted for easy maintenance. A support seat and a heat dissipation sleeve 8 are provided at the non-extrusion end of the extrusion sleeve 10, which can effectively improve the heat dissipation performance of the power end and reduce the impact of high temperature on the power transmission components. The setting of support seat 1 6, support seat 2 7 and heat dissipation sleeve 8 can effectively improve the overall structural stability of the extrusion device. The support seat 1 6 and support seat 2 7 are provided with opening slots 9, which, together with locking holes 19 and locking screws 20, effectively improve the convenience and stability of the installation.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A high-temperature resistant plastic extrusion processing machine, comprising an air supply pipe (16), an extrusion sleeve (10), and an internally disposed conveying screw (21), characterized in that, The extrusion end of the extrusion sleeve (10) is equipped with an extrusion nozzle (12). A mica heating ring (11) is provided on the outer side of the end of the extrusion sleeve (10) near the extrusion nozzle (12). A heat dissipation sleeve (8) is provided on the outer side of the other end of the extrusion sleeve (10). A support seat one (6) is provided on one side of the heat dissipation sleeve (8), and a support seat two (7) is provided on the other side. Insertion mounting holes (26) are provided on the outer walls of the heat dissipation sleeve (8) and the extrusion sleeve (10). The lower end of the feeding hopper (5) is inserted into the insertion mounting hole (26). The support seat one (6) and the support seat two (7) are fixedly installed on the support base plate (2). The end of the conveying screw (21) is connected to the output shaft of the gearbox (4) through a coupling (18). A motor (3) is provided at one end of the input shaft of the gearbox (4).

2. The high-temperature resistant plastic extrusion processing machine according to claim 1, characterized in that, The gearbox (4) is fixedly mounted on the support base plate (2) by screws. The conveying screw (21) and the extrusion sleeve (10) are provided with a mating bearing (22). The mating bearing (22) is provided with a uniformly distributed ring (23) on its side. The uniformly distributed ring (23) has a cavity structure.

3. The high-temperature resistant plastic extrusion processing machine according to claim 2, characterized in that, The air supply pipe (16) is connected to the outer side of the uniform distribution ring (23). The second support (7) is provided with a groove structure that matches the shape of the air supply pipe (16). The uniform distribution ring (23) is provided with a jet nozzle (24) along the circumferential direction on the side near the feeding hopper (5). A control valve (17) is installed on the section of the air supply pipe (16) that extends to the outside.

4. The high-temperature resistant plastic extrusion processing machine according to claim 3, characterized in that, Both the first support base (6) and the second support base (7) are convex-shaped structures. The upper middle position of the first support base (6) and the second support base (7) are respectively provided with an opening groove (9). The side wall of the first support base (6) and the second support base (7) corresponding to the opening groove (9) is provided with a locking hole (19). A locking screw (20) is provided in the locking hole (19).

5. A high-temperature resistant plastic extrusion processing machine according to claim 4, characterized in that, Each of the support base one (6), the support base two (7), and the heat dissipation sleeve (8) is provided with a corresponding through hole. The size of the through hole is adapted to the outer diameter of the extrusion sleeve rod (10), and the extrusion sleeve rod (10) is installed through the through hole.

6. A high-temperature resistant plastic extrusion processing machine according to claim 5, characterized in that, Two locking screws (25) are symmetrically arranged on the outer wall of the heat sink sleeve (8). The locking screws (25) are threadedly connected to the heat sink sleeve (8). The line connecting the two locking screws (25) is perpendicular to the center line of the insertion mounting hole (26).

7. A high-temperature resistant plastic extrusion processing machine according to claim 6, characterized in that, A support main unit box (1) is provided below the support base plate (2). A temperature setting knob (13) is provided on the panel of the support main unit box (1). A display screen (14) is provided above the temperature setting knob (13). A speed adjustment knob (15) is provided on the side of the temperature setting knob (13). The number of temperature setting knobs (13) and the number of display screens (14) are the same as the number of mica heating coils (11).

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