Extruder screw with long service life

Abstract

The utility model relates to an extruder screw with long service life, which relates to the field of plastic extruder equipment, and comprises a rack, a screw, an upper machine cover, a lower machine cover, a rotating assembly and a driving assembly, the lower machine cover is arranged on the rack, the upper machine cover is connected with the lower machine cover through the rotating assembly, the upper machine cover is provided with a first extrusion groove, and the upper machine cover is provided with a second extrusion groove. The upper machine cover is provided with a first extrusion groove, the lower machine cover is provided with a second extrusion groove, an extrusion channel is formed between the first extrusion groove and the second extrusion groove, the screw rod is rotatably connected in the extrusion channel, the driving assembly is arranged on the rack, and the driving assembly is rotatably connected with the screw rod. The screw dismounting efficiency is improved, operation is easier and more convenient, the screw is better maintained and cleaned, and the service life of the screw is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of plastic extruder equipment, in particular to an extruder screw with a long service life. Background Art

[0002] The extruder screw is one of the core components of the extruder. Its function is to suck plastic and other materials from the hopper, push the materials forward through rotation and extrusion, heat and plasticize them at the same time, and finally extrude the materials into the required shape and size. The design and manufacturing quality of the extruder screw directly affects the production efficiency, product quality and service life of the extruder. Therefore, the design and manufacturing of the extruder screw need to be very delicate and rigorous.

[0003] At present, the Chinese utility model patent application with publication date of December 15, 2021 and publication number CN208215971U proposes an extruder screw, which aims to provide a screw that makes the material plasticized more evenly to solve the problem of uneven material plasticization. The key points of its technical solution are the screw body, the feed section, plasticizing section and ejection section arranged in sequence along the movement direction of the material, the feed section is provided with a feed trough formed by a main thread, the ejection section extends outwardly with a stirring section, and the stirring section is provided with a discharge trough formed by a single thread. The utility model is suitable for an extruder and has the effect of more sufficient and more uniform plasticization of the material.

[0004] The above-mentioned prior art solutions have the following defects: when cleaning and maintaining the extruder screw, it is inconvenient to manually remove the screw, which has poor safety and is easy to damage the screw, thus affecting the service life and working efficiency of the screw. Utility Model Content

[0005] The embodiment of the present application provides an extruder screw with a long service life, which can improve the technical problems existing in the related art of inconvenient screw removal, poor safety and easy damage to the screw.

[0006] An embodiment of the present application provides an extruder screw with a long service life, comprising a frame, a screw, an upper cover, a lower cover, a rotating assembly and a driving assembly, wherein the lower cover is arranged on the frame, the upper cover is connected to the lower cover through a rotating assembly, the upper cover is provided with a first extrusion groove, the lower cover is provided with a second extrusion groove, an extrusion channel is formed between the first extrusion groove and the second extrusion groove, the screw is rotatably connected in the extrusion channel, the driving assembly is arranged on the frame, and the driving assembly is rotatably connected to the screw.

[0007] The above-mentioned technical scheme in the embodiment of the present application has at least the following technical effects: when the screw needs to be maintained or cleaned, we need to replace the screw. At this time, we separate the upper cover from the lower cover by rotating the assembly to expose the first extrusion groove, and then separate the screw from the drive assembly, and then take the screw out of the extrusion channel for maintenance or cleaning. After the screw is maintained or cleaned, put the screw back into the extrusion channel, rotatably connect the drive assembly to the screw, and then connect the upper cover to the lower cover through the rotating assembly.

[0008] An extruder screw with a long service life provided in an embodiment of the present application saves manpower and improves the efficiency of disassembling the screw, making the operation easier, and allowing for better maintenance and cleaning of the screw, thereby increasing the service life of the screw.

[0009] In some embodiments, the rotating assembly includes a rotating shaft and a connecting rod. A limiting hole is opened on the frame. Both ends of the rotating shaft are rotatably connected to the frame through the limiting hole. One end of the connecting rod is fixedly connected to the rotating shaft, and the other end of the connecting rod is fixedly connected to the upper cover. There are multiple connecting rods.

[0010] In some embodiments, the upper cover is provided with a plurality of first threaded holes, the lower cover is provided with a plurality of second threaded holes, and a plurality of connecting bolts are connected to the first threaded holes and the second threaded holes.

[0011] In some embodiments, a sealing ring is further provided on a side of the lower cover close to the upper cover, and a side of the sealing ring away from the lower cover abuts against the upper cover.

[0012] In some embodiments, the upper cover is further provided with a feed port, and the upper cover is further provided with a feed barrel, and the feed barrel is connected with the extrusion channel through the feed port.

[0013] In some embodiments, a backflow prevention gasket is disposed at one end of the lower cover close to the driving assembly, and the backflow prevention gasket is located in the second extrusion groove.

[0014] In some embodiments, the drive assembly includes a drive motor, a motor bracket and a connecting sleeve, the motor bracket is arranged on a frame, the drive motor is arranged on the motor bracket, the connecting sleeve is coaxially connected to the output shaft of the drive motor, an internal thread is provided on the inner circumference of the connecting sleeve, an external thread is provided on one end of the screw rod close to the drive motor, and the connecting sleeve is threadedly connected to the screw rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic diagram of the overall structure of an extruder screw with a long service life provided in an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the internal structure of an extruder screw with a long service life provided in an embodiment of the present application;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] Among them, the reference numerals in the figure are:

[0020] 1. Frame; 2. Upper cover; 3. Lower cover; 4. Rotating assembly; 41. Rotating shaft; 42. Connecting rod; 5. First extrusion slot; 6. Second extrusion slot; 7. First threaded hole; 8. Second threaded hole; 9. Connecting bolt; 10. Sealing ring; 11. Feed barrel; 12. Anti-backflow gasket; 13. Driving assembly; 131. Driving motor; 132. Motor bracket; 133. Connecting sleeve; 14. Screw. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0027] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] The extruder screw is one of the core components of the extruder. Its function is to suck plastic and other materials from the hopper, push the materials forward through rotation and extrusion, heat and plasticize them at the same time, and finally extrude the materials into the required shape and size. The design and manufacturing quality of the extruder screw directly affects the production efficiency, product quality and service life of the extruder. Therefore, the design and manufacturing of the extruder screw need to be very delicate and rigorous.

[0029] At present, the Chinese utility model patent application with publication date of December 15, 2021 and publication number CN208215971U proposes an extruder screw, which aims to provide a screw that makes the material plasticized more evenly to solve the problem of uneven material plasticization. The key points of its technical solution are the screw body, the feed section, plasticizing section and ejection section arranged in sequence along the movement direction of the material, the feed section is provided with a feed trough formed by a main thread, the ejection section extends outwardly with a stirring section, and the stirring section is provided with a discharge trough formed by a single thread. The utility model is suitable for an extruder and has the effect of more sufficient and more uniform plasticization of the material.

[0030] The above-mentioned prior art solutions have the following defects: when cleaning and maintaining the extruder screw, it is inconvenient to manually remove the screw, which has poor safety and is easy to damage the screw, thus affecting the service life and working efficiency of the screw.

[0031] Based on this, in order to improve the problems in the related art that the screw is inconvenient to remove, has poor safety and is easily damaged, the embodiments of the present application provide the following solution.

[0032] Please also read Figure 1 and Figure 3 The embodiment of the present application provides an extruder screw 14 with a long service life, including a frame 1, a screw 14, an upper cover 2, a lower cover 3, a rotating assembly 4 and a driving assembly 13, wherein the lower cover 3 is connected to the frame 1 by bolts, the upper cover 2 is connected to the lower cover 3 by the rotating assembly 4, the upper cover 2 is provided with a first extrusion groove 5, the lower cover 3 is provided with a second extrusion groove 6, an extrusion channel is formed between the first extrusion groove 5 and the second extrusion groove 6, the screw 14 is rotatably connected in the extrusion channel, the driving assembly 13 is arranged on the frame 1, and the driving assembly 13 is rotatably connected to the screw 14.

[0033] From the above, it can be seen that the embodiment of the present application provides an extruder screw 14 with a long service life. When the screw 14 needs to be maintained or cleaned, we need to replace the screw 14. At this time, we separate the upper cover 2 from the lower cover 3 by rotating the component 4, exposing the first extrusion groove 5, and then separate the screw 14 from the drive component 13, and then take the screw 14 out of the extrusion channel for maintenance or cleaning. After the screw 14 is maintained or cleaned, put the screw 14 back into the extrusion channel, rotate the drive component 13 and the screw 14 to connect, and then connect the upper cover 2 to the lower cover 3 through the rotating component 4.

[0034] The embodiment of the present application provides an extruder screw 14 with a long service life. By configuring an upper cover 2, a lower cover 3 and a rotating assembly 4, manpower is saved, the efficiency of disassembling the screw 14 is improved, the operation is easier, and the screw 14 can be better maintained and cleaned, thereby increasing the service life of the screw 14.

[0035] In some embodiments, please refer to Figures 1 to 3 The rotating assembly 4 includes a rotating shaft 41 and a connecting rod 42. A limiting hole is provided on the frame 1. Both ends of the rotating shaft 41 are rotatably connected to the frame 1 through the limiting holes. One end of the connecting rod 42 is fixedly connected to the rotating shaft 41 by bolts, and the other end of the connecting rod 42 is fixedly connected to the upper cover 2 by bolts. A plurality of connecting rods 42 are provided.

[0036] With such arrangement, when the screw 14 needs to be removed, the rotating shaft 41 on the limiting hole is rotated to drive the connecting rod 42, so that the upper cover 2 and the lower cover 3 are separated, exposing the screw 14. The screw 14 can be replaced, which saves manpower and improves the efficiency of removing the screw 14, making the operation easier. The screw 14 is easier to maintain and clean, thereby increasing the service life of the screw 14.

[0037] In some embodiments, please refer to Figure 1 and Figure 3 The upper cover 2 is provided with a plurality of first threaded holes 7 , the lower cover 3 is provided with a plurality of second threaded holes 8 , and a plurality of connecting bolts 9 are connected to the first threaded holes 7 and the second threaded holes 8 .

[0038] With such arrangement, when it is necessary to remove the screw 14, first loosen the connecting bolt 9 on the upper cover 2, reinstall the screw 14, and then rotate the connecting bolt 9 to connect it in the first threaded hole 7 and the second threaded hole 8 of the upper cover 2 and the lower cover 3, so as to ensure the tight connection between the upper cover 2 and the lower cover 3, improve the overall sealing, and also improve the stability of the structure.

[0039] In some embodiments, please refer to Figure 1 and Figure 3 A sealing ring 10 is further provided on a side of the lower cover 3 close to the upper cover 2 , and a side of the sealing ring 10 away from the lower cover 3 abuts against the upper cover 2 .

[0040] With such arrangement, when the upper cover 2 is connected to the lower cover 3 , the sealing ring 10 provided at the connection can seal the connection, thereby improving the sealing between the upper cover 2 and the lower cover 3 , and improving the sealing effect between the first extrusion groove 5 and the second extrusion groove 6 .

[0041] In some embodiments, please refer to Figure 1 and Figure 3The upper cover 2 is also provided with a feed port, and the upper cover 2 is connected with a feed barrel 11 by bolts, and the feed barrel 11 is connected with the extrusion channel through the feed port.

[0042] With such arrangement, when extrusion work is required, the upper cover 2 and the lower cover 3 are connected together, and then the raw materials are put in through the feed barrel 11 on the upper cover 2, and the raw materials enter the extrusion channel through the feed port in the feed barrel 11, which facilitates the insertion of the raw materials and improves convenience.

[0043] In some embodiments, please refer to Figure 1 and Figure 3 The lower cover 3 is provided with an anti-backflow gasket 12 at one end close to the driving assembly 13 , and the anti-backflow gasket 12 is located in the second extrusion groove 6 .

[0044] With such arrangement, after the raw material is put into the feed barrel 11 , the drive assembly 13 causes the extruder screw 14 to rotate, and the raw material is processed in the extrusion channel. The anti-backflow gasket 12 can ensure that the raw material does not overflow from the end of the screw 14 close to the drive assembly 13 .

[0045] In some embodiments, please refer to Figure 1 and Figure 3 The driving assembly 13 includes a driving motor 131, a motor bracket 132 and a connecting sleeve 133. The motor bracket 132 is connected to the frame 1 by bolts, and the driving motor 131 is connected to the motor bracket 132 by bolts. The connecting sleeve 133 is coaxially connected to the output shaft of the driving motor 131. An internal thread is provided on the inner circumferential surface of the connecting sleeve 133. An external thread is provided at one end of the screw 14 close to the driving motor 131, and the connecting sleeve 133 is threadedly connected to the screw 14.

[0046] With such arrangement, when it is necessary to remove the screw 14, the connecting sleeve 133 on the drive motor 131 is rotated to separate the screw 14 from the output shaft on the drive motor 131, and the upper cover 2 is separated from the lower cover 3 by the rotating component 4, the screw 14 is taken out, and after the screw 14 is reloaded, the connecting sleeve 133 is rotated to connect the screw 14 to the output shaft on the drive motor 131, thereby improving the efficiency of removing the screw 14, saving manpower, and making the removal of the screw 14 more convenient.

[0047] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An extruder screw (14) with a long service life, characterized in that: The invention comprises a frame (1), a screw (14), an upper cover (2), a lower cover (3), a rotating assembly (4) and a driving assembly (13); the lower cover (3) is arranged on the frame (1); the upper cover (2) is connected to the lower cover (3) via the rotating assembly (4); the upper cover (2) is provided with a first extrusion groove (5); the lower cover (3) is provided with a second extrusion groove (6); an extrusion channel is formed between the first extrusion groove (5) and the second extrusion groove (6); the screw (14) is rotatably connected in the extrusion channel; the driving assembly (13) is arranged on the frame (1); and the driving assembly (13) is rotatably connected to the screw (14).

2. An extruder screw (14) with a long service life according to claim 1, characterized in that: The rotating assembly (4) comprises a rotating shaft (41) and a connecting rod (42); a limiting hole is provided on the frame (1); both ends of the rotating shaft (41) are rotatably connected to the frame (1) through the limiting hole; one end of the connecting rod (42) is fixedly connected to the rotating shaft (41); the other end of the connecting rod (42) is fixedly connected to the upper cover (2); and a plurality of connecting rods (42) are provided.

3. An extruder screw (14) with a long service life according to claim 1, characterized in that: The upper cover (2) is provided with a plurality of first threaded holes (7), the lower cover (3) is provided with a plurality of second threaded holes (8), and a plurality of connecting bolts (9) are connected to the first threaded holes (7) and the second threaded holes (8).

4. An extruder screw (14) with a long service life according to claim 1, characterized in that: A sealing ring (10) is also provided on a side of the lower cover (3) close to the upper cover (2), and a side of the sealing ring (10) away from the lower cover (3) abuts against the upper cover (2).

5. An extruder screw (14) with a long service life according to claim 1, characterized in that: The upper machine cover (2) is also provided with a feed port, and the upper machine cover (2) is also provided with a feed barrel (11), and the feed barrel (11) is connected with the extrusion channel through the feed port.

6. An extruder screw (14) with a long service life according to claim 4, characterized in that: An anti-backflow gasket (12) is provided at one end of the lower cover (3) close to the driving assembly (13), and the anti-backflow gasket (12) is located in the second extrusion groove (6).

7. An extruder screw (14) with a long service life according to claim 1, characterized in that: The driving assembly (13) comprises a driving motor (131), a motor bracket (132) and a connecting sleeve (133); the motor bracket (132) is arranged on the frame (1); the driving motor (131) is arranged on the motor bracket (132); the connecting sleeve (133) is coaxially connected to the output shaft of the driving motor (131); an internal thread is provided on the inner circumferential surface of the connecting sleeve (133); an external thread is provided on one end of the screw rod (14) close to the driving motor (131); and the connecting sleeve (133) is threadedly connected to the screw rod (14).

Images