CN221049000U - Snake-shaped element - Google Patents
Snake-shaped element Download PDFInfo
- Publication number
- CN221049000U CN221049000U CN202322595281.7U CN202322595281U CN221049000U CN 221049000 U CN221049000 U CN 221049000U CN 202322595281 U CN202322595281 U CN 202322595281U CN 221049000 U CN221049000 U CN 221049000U
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- Prior art keywords
- snake
- serpentine
- screw
- shaped element
- face
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- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 51
- 230000010006 flight Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 36
- 239000000835 fiber Substances 0.000 abstract description 10
- 239000002657 fibrous material Substances 0.000 abstract description 8
- 239000006185 dispersion Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 235000012438 extruded product Nutrition 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000010008 shearing Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a snake-shaped element, which is used in pairs, a pair of snake-shaped elements are arranged in parallel and meshed with each other, the outer surface of the snake-shaped element is a smooth annular curved surface extending from a first end face of the snake-shaped element to a second end face of the snake-shaped element, and a plurality of the snake-shaped elements are connected end to end along the axial direction to form a snake-shaped pipeline. The utility model can make the material more uniform and convey, fully mix, plasticize and extrude the material, and improve the fiber adding stability, ensure the uniform dispersion and effective addition of the fiber material, and simultaneously make the exhaust surface update effect good, and improve the surface quality of the extruded product.
Description
Technical Field
The utility model relates to the technical field of threaded elements of double-screw extruders, in particular to a serpentine element.
Background
Screw elements are the core components of twin screw extruders and play a critical role in material handling, mixing, plasticizing and extrusion.
In patent application number CN201220654478.2, entitled twin-screw threaded element, a device is disclosed comprising two identical threaded elements, said two threaded elements being intermeshed; the screw thread element is a single-head screw thread element, the screw lead starts from the end face, and the formed screw edge size is centered with any key groove size in the internal spline; the width P of the screw rib is 12-36mm; the specification size of the thread pitch L is 44-96mm.
Fiber adding stabilization refers to ensuring that fiber materials (such as glass fibers and the like) can be uniformly and stably dispersed in a matrix material by proper modes and technical means in the extrusion process, so that the strength and the performance of a product are improved. When the material needs to be stably added with fibers, uniform dispersion and effective addition of the fiber material need to be ensured. The wider screw thread element disclosed in the patent improves the forward conveying pressure, so that the conveying capacity of the double-screw extruder is improved, the problem of aggregation or uneven distribution of fiber materials is easily caused, the stability of material fiber adding is poor, and the strength and the performance of products cannot be improved.
Disclosure of utility model
The utility model aims to provide a snake-shaped element to solve the problem of aggregation or uneven distribution of fiber materials when the material fiber adding is stable in the background art.
In order to solve the technical problems, the utility model provides a pair of serpentine elements, wherein the serpentine elements are used in pairs, a pair of the serpentine elements are arranged in parallel and meshed with each other, the outer surfaces of the serpentine elements are smooth annular curved surfaces extending from a first end face of each serpentine element to a second end face of each serpentine element, and a plurality of the serpentine elements are connected end to end along the axial direction to form a serpentine pipeline.
Further, an internal spline is arranged in the serpentine element, a screw edge is arranged on the serpentine element, the outer surface of the screw edge is flush with the outer surface of the serpentine element and is adaptive to the outer surface of the serpentine element, and the center line of the screw edge is coincident with the center line of a tooth slot of the internal spline.
Further, the two end faces of the serpentine element are identical in shape and are both annular, the outer ring of the first end face of the serpentine element is not collinear with the outer ring axial lead of the second end face of the serpentine element, and the inner ring of the first end face of the serpentine element is collinear with the inner ring axial lead of the second end face of the serpentine element.
Further, the screw flights comprise a first screw flight and a second screw flight, and the central line of the first screw flight and the central line of the second screw flight are symmetrically arranged.
Further, the width of the first flight is greater than the width of the second flight.
Further, the internal spline is an involute spline.
The beneficial effects of the utility model are as follows:
when a worker uses the double-screw extruder, the plurality of snakelike elements on the mandrels can form a crossed spiral structure only by installing the plurality of snakelike elements on the two mandrels in an end-to-end connection mode, the two mandrels are installed in parallel, and the plurality of snakelike elements on the two mandrels are meshed with each other. This configuration increases the circulation path of the material, i.e., the flow path of the material is prolonged, thus increasing the dead time of the material in the barrel, thereby enhancing the friction and shear force between the materials.
The material conveying device can enable the material to be conveyed more uniformly, fully mix, plasticize and extrude the material, improve the fiber adding stability, ensure the uniform dispersion and effective addition of the fiber material, enable the exhaust surface to be updated effectively, and improve the surface quality of extruded products.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present utility model.
Fig. 2 is a schematic left-view structure of an embodiment of the present utility model.
Fig. 3 is a schematic front view of an embodiment of the present utility model.
Fig. 4 is a schematic perspective view of the embodiment of the present utility model when used in pairs.
Fig. 5 is a schematic diagram of an assembly structure according to an embodiment of the present utility model.
Wherein: 1. a serpentine element; 2. a first end face of the serpentine element; 3. a second end face of the serpentine element; 4. an internal spline; 5. a first screw flight; 6. and a second spiral rib.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only one embodiment of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
The present application will be described in further detail with reference to the drawings and the embodiments, in order to make the objects, technical solutions and advantages of the present application more apparent.
In the following description, references to "one embodiment," "an embodiment," "one example," "an example," etc., indicate that the embodiment or example so described may include a particular feature, structure, characteristic, property, element, or limitation, but every embodiment or example does not necessarily include the particular feature, structure, characteristic, property, element, or limitation. In addition, repeated use of the phrase "according to an embodiment of the application" does not necessarily refer to the same embodiment, although it may.
As shown in fig. 1-5, the present utility model discloses a serpentine element 1, wherein the serpentine element 1 is used in pairs, and a pair of serpentine elements 1 are arranged in parallel and meshed with each other. The outer surface of the serpentine element 1 is a smooth annular curved surface extending from the first end surface 2 of the serpentine element to the second end surface 3 of the serpentine element, and a plurality of serpentine elements 1 are connected end to end along the axial direction to form a serpentine channel.
When a worker uses the double-screw extruder, the plurality of snakelike elements 1 on the mandrel can form a crossed spiral structure only by respectively installing the plurality of snakelike elements 1 on the two mandrels in an end-to-end connection mode, the two mandrels are installed in parallel, and the plurality of snakelike elements 1 on the two mandrels are meshed with each other. This configuration increases the circulation path of the material, i.e., the flow path of the material is prolonged, thus increasing the dead time of the material in the barrel, thereby enhancing the friction and shear force between the materials.
When the materials are conveyed and mixed, the structure increases the mixing and friction of the materials in the screw cavity of the extruder, the flow path of the materials is prolonged, the friction and shearing force between the materials are enhanced, and the heat energy, the quality, the material characteristics and the like among different particles are favorably mixed.
When plasticizing and extruding materials, the structure enhances the stress and shearing action of the materials in the machine barrel, gradually melts the materials at high temperature and high shearing force and forms a uniform molten state, thereby being beneficial to improving the plasticizing process of the materials, better melting and mixing the materials, improving the uniformity and quality of products and promoting the melting and heating process of plastics so as to be extruded and molded through a die head of an extruder.
When the material is added with fiber and stabilized, the structure ensures that the flow path of the material is prolonged and the shearing force is enhanced, so that the fiber can be more reasonably and uniformly dispersed and stabilized to be added into the extruded material, the fiber material is not easy to agglomerate, and the uniform distribution and the enhancement effect of the fiber in the plastic product are ensured.
For venting and surface renewal effects, the cross-helical structure of the element can help to enhance venting, reduce the presence of bubbles and residual gases, and improve the surface quality of the extruded product.
In one embodiment, the inside of the serpentine element 1 is provided with an internal spline 4, the serpentine element 1 is provided with a screw edge, the outer surface of the screw edge is flush with the outer surface of the serpentine element 1 and is matched with the outer surface of the serpentine element, and the center line of the screw edge is coincident with the center line of a tooth groove of the internal spline 4. It is possible to assist the staff in aligning the plurality of serpentine elements 1 when installing the plurality of serpentine elements 1 on the mandrel. By aligning the screw flights with the tooth slots, the screw elements can be accurately positioned and mounted to predetermined locations, reducing errors and deviations during assembly.
In one embodiment, the two end faces of the serpentine element are identical in shape and each have a circular shape, the outer ring of the first end face 2 of the serpentine element is not collinear with the outer ring axis of the second end face 3 of the serpentine element, and the inner ring of the first end face 2 of the serpentine element is collinear with the inner ring axis of the second end face 3 of the serpentine element.
In one embodiment, the screw flights comprise a first screw flight 5 and a second screw flight 6, the center line of the first screw flight 5 and the center line of the second screw flight 6 being symmetrically arranged. Further improving the assembly accuracy, preventing skew or dislocation in the assembly process, and ensuring that the threaded element rotates and moves with the correct axis.
In one embodiment, the width of the first flight 5 is greater than the width of the second flight 6.
In one embodiment, the internal spline 4 is an involute spline.
The working principle of this embodiment is as follows:
When a worker uses the device, the snakelike elements 1 are sleeved on the mandrel, the internal splines 4 on the snakelike elements 1 are meshed with the external splines on the mandrel, and then the plurality of snakelike elements 1 are sequentially sleeved on the mandrel, so that the first screw edges 5 and the second screw edges 6 are respectively aligned, the plurality of snakelike elements 1 on the mandrel can form a crossed spiral structure, the two mandrels are installed in parallel, and the plurality of snakelike elements 1 on the two mandrels are meshed with each other. This configuration increases the circulation path of the material, i.e., the flow path of the material is prolonged, thus increasing the dead time of the material in the barrel, thereby enhancing the friction and shear force between the materials.
The utility model can make the material more uniform and convey, fully mix, plasticize and extrude the material, and improve the fiber adding stability, ensure the uniform dispersion and effective addition of the fiber material, and simultaneously make the exhaust surface update effect good, and improve the surface quality of the extruded product.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A serpentine element, for use in pairs, a pair of said serpentine elements being disposed in parallel relationship and intermeshed with each other, characterized in that: the outer surface of the serpentine element is a smooth annular curved surface extending from the first end face of the serpentine element to the second end face of the serpentine element, and a plurality of the serpentine elements are connected end to end along the axial direction to form a serpentine pipeline.
2. A serpentine element according to claim 1, wherein: the internal spline is arranged in the snake-shaped element, the screw rib is arranged on the snake-shaped element, the outer surface of the screw rib is flush with and is matched with the outer surface of the snake-shaped element, and the center line of the screw rib is coincident with the center line of a tooth slot of the internal spline.
3. A serpentine element according to claim 1, wherein: the two end faces of the snake-shaped element are identical in shape and are all in a ring shape, the outer ring of the first end face of the snake-shaped element is not collinear with the outer ring axial lead of the second end face of the snake-shaped element, and the inner ring of the first end face of the snake-shaped element is collinear with the inner ring axial lead of the second end face of the snake-shaped element.
4. A serpentine element according to claim 2, wherein: the screw flights comprise a first screw flight and a second screw flight, and the central line of the first screw flight and the central line of the second screw flight are symmetrically arranged.
5. A serpentine element according to claim 4, wherein: the width of the first screw flight is larger than that of the second screw flight.
6. A serpentine element according to claim 2, wherein: the internal spline is an involute spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322595281.7U CN221049000U (en) | 2023-09-22 | 2023-09-22 | Snake-shaped element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322595281.7U CN221049000U (en) | 2023-09-22 | 2023-09-22 | Snake-shaped element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221049000U true CN221049000U (en) | 2024-05-31 |
Family
ID=91206822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322595281.7U Active CN221049000U (en) | 2023-09-22 | 2023-09-22 | Snake-shaped element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221049000U (en) |
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2023
- 2023-09-22 CN CN202322595281.7U patent/CN221049000U/en active Active
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