CN221212688U - Environment-friendly decomposition screw - Google Patents

Environment-friendly decomposition screw Download PDF

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Publication number
CN221212688U
CN221212688U CN202322892655.1U CN202322892655U CN221212688U CN 221212688 U CN221212688 U CN 221212688U CN 202322892655 U CN202322892655 U CN 202322892655U CN 221212688 U CN221212688 U CN 221212688U
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CN
China
Prior art keywords
screw
feeding section
groove
section
rod
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Active
Application number
CN202322892655.1U
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Chinese (zh)
Inventor
夏瑜键
夏增富
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ZHEJIANG HUAYE PLASTIC MACHINERY CO Ltd
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ZHEJIANG HUAYE PLASTIC MACHINERY CO Ltd
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Abstract

The utility model provides an environmental protection decomposes screw rod, includes the body of rod and sets up the spiral shell arris on the body of rod, the spiral shell arris includes feeding section, melting section and ejection of compact section, ejection of compact section is the stirring head that can scrape the material from a section of thick bamboo inner wall increase material stirring number of times, the melting section is two spiral shell arris, the liquid phase groove width of two spiral arris increases gradually and the width of solid phase groove reduces gradually. The utility model has the advantages that: the stirring head increases the stirring times of the materials at the discharging position, can successfully scrape the materials from the inner wall of the machine barrel and re-add the materials into the rolling stirring, realizes the full stirring and mixing of the materials, and has better material stirring effect; the melting section adopts a double-screw structure, the width of a liquid phase groove of the double screw is gradually increased, the width of a solid phase groove is gradually reduced, materials can be better converted into liquid phase, the mixing effect is better, and the materials are more uniformly mixed.

Description

Environment-friendly decomposition screw
Technical Field
The utility model relates to the technical field of screw manufacturing, in particular to an environment-friendly decomposition screw.
Background
The prior Chinese patent application with the application number of CN202111013146.6 being an extrusion converging device capable of reducing raw material decomposition at the conical head of a screw rod discloses an extrusion converging device capable of reducing raw material decomposition at the conical head of the screw rod, which comprises a machine barrel, wherein two screws are arranged in the machine barrel, a converging core is fixedly arranged at one end of the machine barrel, which is close to a discharge hole, the other end of the machine barrel is connected with a power part, the conical head of the screw rod is positioned at the converging core, one end of the screw rod, which is far away from the conical head, is in transmission connection with the power part, and the machine barrel is provided with a feed inlet; the rod body of the screw is provided with a screw edge, the conical head is provided with at least one conical head screw edge, the end part of the conical head screw edge is integrally formed with an extension part which passes through the end part of the conical head, the rotation outline of the conical head screw edge is matched with the outline curve of the inner cavity of the converging core, and a preset gap is reserved between the rotation outline of the conical head screw edge and the outline curve of the inner cavity of the converging core; the rotation direction of the screw rib of the cone head is the same as that of the screw rib of the screw rod. The invention ensures that the raw materials cannot adhere to the inner wall of the confluence core for a long time due to the pushing and scraping of the cone-head screw edges in the confluence core, and avoids the problem that the raw materials stay and decompose in the area due to the adhesion of the wall during extrusion. However, the screw combination has room for improvement in the kneading effect during the process of transporting the material to the discharge position, and therefore the structure of the apparatus needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an environment-friendly decomposition screw rod which can enhance the mixing effect in the material discharging process and has good material stirring effect at the discharging position.
The technical scheme adopted for solving the technical problems is as follows: this environmental protection decomposes screw rod, including the body of rod and the spiral shell arris of setting on the body of rod, its characterized in that: the spiral shell arris includes feeding section, melting section and ejection of compact section, the ejection of compact section is the stirring head that can scrape the material from the inner wall of the machine section of thick bamboo increase material stirring number of times, the melting section is two spiral shell arris, the liquid phase groove width of two spiral shell arris increases gradually and the width of solid phase groove reduces gradually.
As an improvement, the depth of the liquid phase tank may preferably be gradually increased, and the depth of the solid phase tank may be gradually decreased.
Further improvements may be made in that the double screw flights may preferably comprise a main screw flight and a secondary screw flight, the screw flight height of the main screw flight being greater than the screw flight height of the secondary screw flight.
Further improvements may be made in that the flight width of the primary flight is preferably less than the flight width of the secondary flight. This structure helps to prolong the life of the screw flight and the service life of the screw.
As an improvement, the stirring head can be preferably provided with a main screw groove and an auxiliary screw groove in the circumference, the main screw groove and the auxiliary screw groove are opposite in rotation direction, and the bottoms of the main screw groove and the auxiliary screw groove are communicated together. The materials are fully mixed, and the stirring effect is better.
Further improved, the directions of rotation of the main screw groove and the auxiliary screw groove can be preferably perpendicular to each other.
Further improved, the bottom surfaces of the main screw groove and the auxiliary screw groove can be smooth arc surfaces.
As a modification, the feed section may preferably be a single screw flight, which is smoothly connected to the main screw flight.
As an improvement, the feeding section may preferably include a first feeding section, a second feeding section, a third feeding section, a fourth feeding section, and a fifth feeding section, wherein the rod diameter corresponding to the first feeding section is kept unchanged, the rod diameter corresponding to the second feeding section is gradually increased, the rod diameter corresponding to the third feeding section is kept unchanged, the rod diameter corresponding to the fourth feeding section is gradually decreased, and the rod diameter corresponding to the fifth feeding section is kept unchanged.
Further improvement, a flow blocking groove can be preferably arranged on the rod body close to the feeding section.
Compared with the prior art, the utility model has the advantages that: the stirring head increases the stirring times of the materials at the discharging position, can successfully scrape the materials from the inner wall of the machine barrel and re-add the materials into the rolling stirring, realizes the full stirring and mixing of the materials, and has better material stirring effect; the melting section adopts a double-screw structure, the width of a liquid phase groove of the double screw is gradually increased, the width of a solid phase groove is gradually reduced, materials can be better converted into liquid phase, the mixing effect is better, and the materials are more uniformly mixed.
Drawings
FIG. 1 is a front perspective view of an embodiment of the present utility model;
FIG. 2 is a cross-sectional view taken along line D-D of FIG. 1;
FIG. 3 is a cross-sectional view taken along line E-E of FIG. 1;
Fig. 4 is an enlarged view of the portion I in fig. 1.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 4, the environment-friendly decomposition screw of the embodiment comprises a rod body 1 and screw edges arranged on the rod body 1, wherein the screw edges comprise a feeding section a, a melting section B and a discharging section C, the discharging section C is a stirring head 11 capable of scraping materials away from the inner wall of a cylinder to increase the stirring times of the materials, the melting section B is a double screw edge, and the width of a liquid phase groove 12 of the double screw edge is gradually increased while the width of a solid phase groove 13 is gradually reduced. The depth of the liquid phase tank 12 is gradually increased, and the depth of the solid phase tank 13 is gradually decreased. The double screw flights comprise a main screw flight 14 and a secondary screw flight 15, and the screw flight height of the main screw flight 14 is larger than that of the secondary screw flight 15. The width of the main screw thread 14 is smaller than that of the auxiliary screw thread 15.
The circumference of the stirring head 11 is provided with a main screw groove 111 and a secondary screw groove 112, the main screw groove 111 and the secondary screw groove 112 are opposite in rotation direction, and the bottoms of the main screw groove 111 and the secondary screw groove 112 are communicated together. The main screw groove 111 and the sub screw groove 112 are perpendicular to each other in rotation direction. The bottom surfaces of the main screw groove 111 and the auxiliary screw groove 112 are smooth arc surfaces.
The feeding section A is a single screw rib, the feeding section screw rib 16 and the main screw rib 14 are connected together in a smooth manner, and the front side edge and the rear side edge of the vertical section of the feeding section screw rib 16 are parallel oblique lines. The feeding section A comprises a first feeding section A1, a second feeding section A2, a third feeding section A3, a fourth feeding section A4 and a fifth feeding section A5, the rod diameter corresponding to the first feeding section A1 is kept unchanged, the rod diameter corresponding to the second feeding section A2 is gradually increased, the rod diameter corresponding to the third feeding section A3 is kept unchanged, the rod diameter corresponding to the fourth feeding section A4 is gradually reduced, and the rod diameter corresponding to the fifth feeding section A5 is kept unchanged. A flow blocking groove 17 is arranged on the rod body 1 close to the feeding section A1.

Claims (10)

1. The utility model provides an environmental protection decomposes screw rod, includes body of rod (1) and sets up the spiral shell arris on body of rod (1), its characterized in that: the screw edges comprise a feeding section (A), a melting section (B) and a discharging section (C), the discharging section (C) is a stirring head (11) capable of scraping materials away from the inner wall of the cylinder to increase the stirring times of the materials, the melting section (B) is a double screw edge, the width of a liquid phase groove (12) of the double screw edge is gradually increased, and the width of a solid phase groove (13) is gradually reduced.
2. The environmentally friendly decomposition screw of claim 1, wherein: the depth of the liquid phase groove (12) is gradually increased, and the depth of the solid phase groove (13) is gradually reduced.
3. The environmentally friendly breaking down screw as set forth in claim 2, wherein: the double screw flights comprise a main screw flight (14) and an auxiliary screw flight (15), and the screw flight height of the main screw flight (14) is larger than that of the auxiliary screw flight (15).
4. An environmentally friendly decomposition screw according to claim 3, wherein: the screw width of the main screw (14) is smaller than that of the auxiliary screw (15).
5. The environmentally friendly decomposition screw according to any one of claims 1 to 4, wherein: the stirring head (11) is circumferentially provided with a main screw groove (111) and an auxiliary screw groove (112), the main screw groove (111) and the auxiliary screw groove (112) are opposite in rotation direction, and the bottoms of the main screw groove (111) and the auxiliary screw groove (112) are communicated together.
6. The environmentally friendly breaking down screw as set forth in claim 5, wherein: the main screw groove (111) and the auxiliary screw groove (112) are mutually perpendicular in rotation direction.
7. The environmentally friendly breaking down screw as set forth in claim 5, wherein: the bottoms of the main screw groove (111) and the auxiliary screw groove (112) are smooth arc surfaces.
8. The environmentally friendly decomposition screw according to claim 3 or 4, wherein: the feeding section (A) is a single screw rib, the feeding section screw rib (16) and the main screw rib (14) are connected together in a smooth manner, and the front side edge and the rear side edge of the vertical section of the feeding section screw rib (16) are parallel oblique lines.
9. The environmentally friendly decomposition screw according to any one of claims 1 to 4, wherein: the feeding section (A) comprises a first feeding section (A1), a second feeding section (A2), a third feeding section (A3), a fourth feeding section (A4) and a fifth feeding section (A5), the rod diameter corresponding to the first feeding section (A1) is kept unchanged, the rod diameter corresponding to the second feeding section (A2) is gradually increased, the rod diameter corresponding to the third feeding section (A3) is kept unchanged, the rod diameter corresponding to the fourth feeding section (A4) is gradually reduced, and the rod diameter corresponding to the fifth feeding section (A5) is kept unchanged.
10. The environmentally friendly breaking down screw as set forth in claim 9, wherein: a blocking groove (17) is arranged on the rod body (1) close to the feeding section (A1).
CN202322892655.1U 2023-10-27 Environment-friendly decomposition screw Active CN221212688U (en)

Publications (1)

Publication Number Publication Date
CN221212688U true CN221212688U (en) 2024-06-25

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