CN202491410U - Extrusion screw - Google Patents
Extrusion screw Download PDFInfo
- Publication number
- CN202491410U CN202491410U CN2012200660296U CN201220066029U CN202491410U CN 202491410 U CN202491410 U CN 202491410U CN 2012200660296 U CN2012200660296 U CN 2012200660296U CN 201220066029 U CN201220066029 U CN 201220066029U CN 202491410 U CN202491410 U CN 202491410U
- Authority
- CN
- China
- Prior art keywords
- spiral shell
- zone
- shell rib
- screw
- screw rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 20
- 230000003252 repetitive effect Effects 0.000 claims description 8
- 238000006396 nitration reaction Methods 0.000 claims description 7
- 125000003003 spiro group Chemical group 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 14
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 239000007787 solid Substances 0.000 abstract 1
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/56—Screws having grooves or cavities other than the thread or the channel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
- B29C48/595—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw the thread having non-uniform width
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Provided is an extrusion screw. Screw edges are arranged on a feeding section, a melting section, a plasticization section and an extrusion section. The extrusion screw is characterized in that a plurality of repeat units composed of first screw edges, second screw edges and third screw edges are sequentially arranged on the melting section, the first screw edges, the second screw edges and the third screw edges of each repeat unit are sequentially arranged, and the ratio of the heights of each first screw edge, each second screw edge and each third screw edge is (1:0.8) to (0.82:1), or the ratio of the heights of each first screw edge, each second screw edge and each third screw edge is (1:1.2) to (1.27:1). The extrusion screw has the advantages that the heights of the screw edges of the melting section change in a high-low-high-low-high-low... mode or in a low-high-low-high-low-high... mode. By means of the structure, materials can be evenly converted from a solid state to a melting state with more time and space, material blockage and burnt materials are avoided, and furthermore materials can stably enter the plasticization section.
Description
Technical field
The utility model relates to a kind of manufacture technology field of screw rod, especially refers to a kind of extrusion screw rod.
Background technology
Existing a kind of patent No. is 200920140357.4 and is called that the Chinese utility model patent of " the mixing formula screw rod of gradual change " discloses the mixing formula screw rod of a kind of gradual change; Its structure comprises rotary head, the body of rod and external screw thread; The rotary head and the body of rod are fixed together; External screw thread is arranged on the body of rod, and the body of rod is a feed end near an end of rotary head, and the other end of the body of rod is a discharge end; This body of rod is divided into 6 sections, is first fluxing zone, second gradual change footpath fluxing zone, the 3rd fluxing zone, melt compounded section, blowing agent and mixing of materials section and mixture deferent segment in regular turn from feed end to the discharge end of the body of rod.This mixing formula screw rod is easy to use, has improved the melting effect of fused materials.Yet the durability of its equipment and output all do not have too big raising, and occur phenomenons such as putty and burnt material easily, so the structure of this screw rod also needs further to improve.
Summary of the invention
The utility model technical problem to be solved is that the extrusion screw rod that a kind of material melting speed is fast, discharging even, difficult Jiao expects is provided to above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this extrusion screw rod; Include feed zone, melt zone, fluxing zone, extruding zone; Said feed zone, melt zone, fluxing zone, extruding zone are provided with the spiral shell rib; It is characterized in that: said melt zone is disposed with the repetitive that a plurality of spiral shell rib one, spiral shell rib two, spiral shell rib three are formed; The spiral shell rib one of each repetitive, spiral shell rib two, spiral shell rib three are arranged in order, and said spiral shell rib one height and spiral shell rib two height are 1 with the ratio of spiral shell rib three height: 0.8-0.82: 1, and perhaps said spiral shell rib one height and spiral shell rib two are 1 with the ratio of spiral shell rib three height highly: 1.2-1.27: 1.
As improvement, the thickness of said spiral shell rib two is 6～8mm, and the thickness of spiral shell rib one and spiral shell rib three is 8～10mm; When the height 14～15mm of spiral shell rib two, the thickness of spiral shell rib two is 8～10mm, and the thickness of spiral shell rib one and spiral shell rib three is 6～8mm.This section spiro edge height is with " height-low-Gao-low-Gao-low ... " pattern or " low-Gao-low-Gao-low-Gao ... " patterns of change, and this structure makes material more time and space arranged by the solid-state molten state that is converted into equably.
Improve, the spiral shell rib of said melt zone is 15 ° with the sideline, right side of axial section and the angle between its top vertical line again.
Improve, the repetitive of said melt zone is 3 to 6 again.
Improve, the spiro edge height of said feed zone and fluxing zone is 17～19mm again, and its thickness is 6～8mm.
Improve, the spiral shell rib of said feed zone and fluxing zone is 5 ° with the angle between the vertical line on the left side bearing of axial section and its top again, and the angle between the vertical line on right side bearing and its top is 15 °.
Improve, the length ratio of said feed zone, melt zone, fluxing zone, extruding zone is 24～25: 59～60: 15～16: 55～56 again.
Improve, the screw rod inner shaft of said feed zone, melt zone, fluxing zone, extruding zone is to being provided with a cavity again.This structure has effectively been saved raw material, has practiced thrift production cost.
Improve, the spiral shell edge surface of said feed zone, melt zone, fluxing zone, extruding zone is respectively arranged with one deck nitration case again.This nitration case has significantly improved the decay resistance of screw rod, has prolonged the service life of screw rod.
Improve, the thickness of said nitration case is 0.4～0.7mm again.
Compared with prior art; The advantage of the utility model is: this screw rod is " height-low-Gao-low-Gao-low ... " pattern or " low-Gao-low-Gao-low-Gao ... " patterns of change at the spiro edge height of melt zone; This structure makes material more time and space arranged by the solid-state molten state that is converted into equably; Avoided putty and burnt material, and then made material get into fluxing zone more reposefully; Also have, at fluxing zone and feed zone, the spiral shell rib breaks off and forms secondary spiral shell rib groove, helps material plasticizing and charging, has bigger space that material is carried out preheating, compacting and conveying during charging; Have, the spiral shell edge surface of feed zone, melt zone, fluxing zone, extruding zone is respectively arranged with one deck nitration case again, and this structure has significantly improved the decay resistance of screw rod, has prolonged the service life of screw rod.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the partial sectional view of Fig. 1;
Fig. 3 is the enlarged drawing of I portion among Fig. 1;
Fig. 4 is the enlarged drawing of II portion among Fig. 1.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1 to 4; The extrusion screw rod of present embodiment; Include feed zone A, melt zone B, fluxing zone C, extruding zone E; Feed zone A, melt zone B, fluxing zone C, extruding zone E are provided with the spiral shell rib, wherein are disposed with 3 to 6 repetitives of being made up of spiral shell rib 1, spiral shell rib 2 12, spiral shell rib 3 13 on the melt zone B, and the spiral shell rib 1 of each repetitive, spiral shell rib 2 12, spiral shell rib 3 13 are arranged in order; Spiral shell rib one 11 height H 1 and spiral shell rib 2 12 height H 2 are 1 with the ratio of spiral shell rib 3 13 height H 3: 0.8-0.82: 1, and perhaps spiral shell rib one 11 height H 1 and spiral shell rib 2 12 height H 2 are 1 with the ratio of spiral shell rib 3 13 height H 3: 1.2-1.27: 1.
The thickness of above-mentioned spiral shell rib 2 12 is 6～8mm, and the thickness of spiral shell rib 1 and spiral shell rib 3 13 is 8～10mm; When the height 14～15mm of spiral shell rib 2 12, the thickness of spiral shell rib 2 12 is 8～10mm, and the thickness of spiral shell rib 1 and spiral shell rib 3 13 is 6～8mm.The spiral shell rib of melt zone B is 15 ° with the sideline, right side 111 of axial section and the angle between its top vertical line 112.
The spiro edge height of above-mentioned feed zone A and fluxing zone C is 17～19mm, and its thickness is 6～8mm.The spiral shell rib of feed zone A and fluxing zone C is 5 ° with the angle β between the vertical line 22 on the left side bearing 21 of axial section and its top, and the angle γ between the vertical line 32 on right side bearing 31 and its top is 15 °.
The length ratio of above-mentioned feed zone A, melt zone B, fluxing zone C, extruding zone E is 24～25: 59～60: 15～16: 55～56.The screw rod inner shaft of feed zone A, melt zone B, fluxing zone C, extruding zone E is to being provided with a cavity 4.The spiral shell edge surface of feed zone A, melt zone B, fluxing zone C, extruding zone E is respectively arranged with the nitration case that a layer thickness is 0.4～0.7mm.
Claims (10)
1. extrusion screw rod; Include feed zone (A), melt zone (B), fluxing zone (C), extruding zone (E); Said feed zone (A), melt zone (B), fluxing zone (C), extruding zone (E) are provided with the spiral shell rib; It is characterized in that: said melt zone (B) is disposed with a plurality of repetitives of being made up of spiral shell rib one (11), spiral shell rib two (12), spiral shell rib three (13); The spiral shell rib one (11) of each repetitive, spiral shell rib two (12), spiral shell rib three (13) are arranged in order; Said spiral shell rib one (11) highly (H1) and spiral shell rib two (12) highly (H2) and spiral shell rib three (13) highly the ratio of (H3) be 1: 0.8-0.82: 1, perhaps said spiral shell rib one (11) highly (H1) and spiral shell rib two (12) highly (H2) and spiral shell rib three (13) highly the ratio of (H3) be 1: 1.2-1.27: 1.
2. extrusion screw rod according to claim 1 is characterized in that: the thickness of said spiral shell rib two (12) is 6～8mm, and the thickness of spiral shell rib one (11) and spiral shell rib three (13) is 8～10mm; When the height 14～15mm of spiral shell rib two (12), the thickness of spiral shell rib two (12) is 8～10mm, and the thickness of spiral shell rib one (11) and spiral shell rib three (13) is 6～8mm.
3. extrusion screw rod according to claim 1 and 2 is characterized in that: the spiral shell rib of said melt zone (B) is 15 ° with the sideline, right side (111) of axial section and the angle (α) between its top vertical line (112).
4. extrusion screw rod according to claim 1 and 2 is characterized in that: the repetitive of said melt zone (B) is 3 to 6.
5. extrusion screw rod according to claim 1 and 2 is characterized in that: the spiro edge height of said feed zone (A) and fluxing zone (C) is 17～19mm, and its thickness is 6～8mm.
6. extrusion screw rod according to claim 5; It is characterized in that: the spiral shell rib of said feed zone (A) and fluxing zone (C) is 5 ° with the angle (β) between the vertical line (22) on the left side bearing (21) of axial section and its top, and the angle (γ) between the vertical line (32) on right side bearing (31) and its top is 15 °.
7. extrusion screw rod according to claim 1 and 2 is characterized in that: the length ratio of said feed zone (A), melt zone (B), fluxing zone (C), extruding zone (E) is 24～25: 59～60: 15～16: 55～56.
8. extrusion screw rod according to claim 1 and 2 is characterized in that: the screw rod inner shaft of said feed zone (A), melt zone (B), fluxing zone (C), extruding zone (E) is to being provided with a cavity (4).
9. extrusion screw rod according to claim 1 and 2 is characterized in that: the spiral shell edge surface of said feed zone (A), melt zone (B), fluxing zone (C), extruding zone (E) is respectively arranged with one deck nitration case.
10. extrusion screw rod according to claim 9 is characterized in that: the thickness of said nitration case is 0.4～0.7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200660296U CN202491410U (en) | 2012-02-23 | 2012-02-23 | Extrusion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200660296U CN202491410U (en) | 2012-02-23 | 2012-02-23 | Extrusion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202491410U true CN202491410U (en) | 2012-10-17 |
Family
ID=46997649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200660296U Expired - Fee Related CN202491410U (en) | 2012-02-23 | 2012-02-23 | Extrusion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202491410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115847772A (en) * | 2022-11-13 | 2023-03-28 | 浙江华业塑料机械股份有限公司 | Extrusion screw for extruder and manufacturing method thereof |
-
2012
- 2012-02-23 CN CN2012200660296U patent/CN202491410U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115847772A (en) * | 2022-11-13 | 2023-03-28 | 浙江华业塑料机械股份有限公司 | Extrusion screw for extruder and manufacturing method thereof |
| CN115847772B (en) * | 2022-11-13 | 2026-07-17 | 浙江华业塑料机械股份有限公司 | Extrusion screw for extruder and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 316031 Zhejiang city of Zhoushan province Dinghai Jintang Zhen Shan Tan xihou Industrial Zone Liu Road No. 2 Patentee after: Zhejiang Dong Bin rubber and plastic screw Co., Ltd. Address before: Dinghai Jintang town for road 316031 in Zhejiang province Zhoushan city Zhejiang No. 28 Dong Bin rubber machine screw Co. Ltd. Patentee before: Zhejiang Dongbin Rubber Machinery Screw Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20190223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |