CN202114886U - Screw - Google Patents
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- Publication number
- CN202114886U CN202114886U CN2011202040058U CN201120204005U CN202114886U CN 202114886 U CN202114886 U CN 202114886U CN 2011202040058 U CN2011202040058 U CN 2011202040058U CN 201120204005 U CN201120204005 U CN 201120204005U CN 202114886 U CN202114886 U CN 202114886U
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- CN
- China
- Prior art keywords
- spiral shell
- shell rib
- screw
- zone
- 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
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A screw comprises a feeding section (A), a plasticizing section (B) and an extruding section (C), wherein the plasticizing section (B) and the extruding section (C) are provided with screw ribs. The screw is characterized in that the feeding section (A) is provided with high-low screw ribs, the ratio of the screw pitch (L) between one high screw rib (1) and the adjacent low screw rib (1') to that (H) between each two adjacent screw ribs on the plasticizing section (B) is L:H=1:2-3, and the height difference (F) of the high screw rib (1) with the corresponding low screw rib (1') ranges from 11mm to 13mm. The screw can prevent fracture, materials can evenly enter the feeding section effectively, both the conveying capacity of the whole screw and the plasticizing and scattering effects are remarkably improved, and reasonable distribution of a functional area is emphasized, so that the strength of the whole screw is improved. The screw is an extremely practical product and is worthy of popularization and application.
Description
Technical field
The utility model relates to a kind of injection machine technical field that is used for, and especially refers to a kind of screw rod that is used on the injection machine.
Background technology
Existing a kind of patent No. discloses a kind of structure for the Chinese utility model patent that the CN201020548908.3 name is called " the efficient screw in injection molding machine of a kind of pair of rank compression ", and its structure mainly is made up of solid conveying section, compression melt zone, metering homogenizing zone.Wherein the solid conveying section spiral groove depth is constant; The compression melt zone is the compression section, two rank that three segments are formed, and the first segment spiral groove depth is gradually shallow, and the second segment spiral groove depth is constant, and the 3rd segment spiral groove depth is gradually shallow.Metering homogenizing zone spiral groove depth is constant, is made up of two segments, and first segment is conventional thread segment, and second segment is a pineapple mixing refining head structure.Three segment formula structures of compression melt zone help improving fusion and plasticizing quality, and the metering homogenizing zone that has the pineapple mixing refining head helps mixing homogenizing.This novel screw rod is fit to the processing of various materials, highly versatile, and the quality of moulded products is good.But the shortcoming of this screw-rod structure is in the spiral shell rib part fracture easily of charging place, and putty and burnt phenomenon of expecting can occur; Reason is that the spiral shell rib spacing of charging place is identical and thinner, and is smooth department on the spiral shell rib, so easy anti-glue during charging; Be difficult for charging and putty; Jiao's material occurs owing to charging has some setbacks again, the charging aperture rotation torsion bigger because of putty will increase is arranged again, concentrate and cause easily the screw rod fracture thereby stress occurs.So its structure awaits to improve.
The utility model content
The utility model technical problem to be solved be provide to above-mentioned prior art present situation a kind of feed zone not easy fracture, can not burnt material and can not occur a kind of screw rod of anti-glue during feeding.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this screw rod; Include feed zone, fluxing zone and extruding zone; Said fluxing zone and extruding zone are provided with the spiral shell rib; It is characterized in that: said feed zone is provided with the spiral shell rib of the branch of height, and the pitch ratio on wherein adjacent high spiral shell rib and pitch between the low spiral shell rib and the fluxing zone between the adjacent two spiral shell ribs is 1: 2～3, and the difference in height of said high spiral shell rib and low spiral shell rib is 11～13mm.
As improvement, the interior angular radius of the bottom left of spiral shell rib is preferably 20mm in the said feed zone.
As further improvement, in the said feed zone between spiral shell rib side and the vertical line angle be chosen as 10 degree.
Improve, angular radius may be selected to be 16mm in the right bottom of said feed zone spiral shell rib again.
Improve again, but on the said high spiral shell rib periphery also the compartment of terrain be distributed with breach.
Improve, described breach bottom can be preferably circular arc again; Angle between the described breach left side and the right can be designed to 60 degree.
Improve, the difference in height of said high spiral shell rib and low spiral shell rib can be preferably 12mm again.
Improve again; Said fluxing zone is provided with and breaks off the spiral shell rib and do not break off the spiral shell rib; Said disconnection spiral shell rib compartment of terrain is distributed in the rear portion of fluxing zone; Saidly do not break off the front portion that the spiral shell rib is distributed in fluxing zone, adjacent two pitch ratios of not breaking off between the spiral shell rib are 1: 2～3 on said adjacent high spiral shell rib and pitch between the low spiral shell rib and the fluxing zone.Disconnection spiral shell rib on the fluxing zone can effectively improve plasticizing effect, make plasticizing more evenly, more perfect.
Compared with prior art; The utility model adopts feed zone to be provided with the spiral shell rib of the branch of height; Pitch ratio on wherein adjacent high spiral shell rib and pitch between the low spiral shell rib and the fluxing zone between the adjacent two spiral shell ribs is L: H=1: 2～3, and the difference in height of said high spiral shell rib and low spiral shell rib is 11～13mm.The advantage of this structure is: at first; Because the spiral shell rib density of feed zone is bigger than the spiral shell rib density of fluxing zone, thus the material of feeding charging aperture can flow to the big direction in space, thereby reduced the stress of feed zone screw rod and improved the anti-disconnected performance of feed zone screw rod; Next is; The spiral shell rib of feed zone has the branch of height, so just can better the material that feeds charging aperture be involved in the barrel of charging aperture, thereby eliminate the anti-glue phenomenon that charging aperture occurs; The material that so-called anti-glue refers to feed in the charging aperture can not advance inward, and can stay in above the charging aperture, and when serious, the material that gets into charging aperture also can outwards spue from charging aperture.Have again; The compartment of terrain is distributed with breach on the spiral shell rib periphery of the feed zone of the utility model; These breach can be involved in charging better charging and carry to fluxing zone during along with the rotation of screw rod, thereby have further promoted the material of charging aperture to move inward, and eliminate the anti-glue phenomenon of charging aperture.In sum; The screw rod of the utility model can prevent fracture effectively; No matter material, be the conveying capacity of whole screw rod if being flowed to fluxing zone from feed zone, still the effect of plasticizing dispersion all has significant raising; Pay attention to the reasonable distribution of functional areas simultaneously, improved the intensity of whole screw rod then.So the utility model is a kind of very practical product, is worthy of popularization.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 be among Fig. 1 along N to perspective view;
Fig. 3 is the unfolding assumption diagram of feed zone spiral shell rib among Fig. 1;
Fig. 4 is the enlarged drawing of I portion among Fig. 1;
Fig. 5 is the profile of the A-A line among Fig. 3.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Like the screw rod of Fig. 1 to present embodiment shown in Figure 5; Include feed zone A, fluxing zone B and extruding zone C; Said fluxing zone B and extruding zone C are provided with the spiral shell rib; It is characterized in that: said feed zone A is provided with the spiral shell rib of the branch of height, wherein adjacent high spiral shell rib 1 and low spiral shell rib 1 ' between pitch L and the pitch H between the last adjacent two spiral shell ribs of fluxing zone B than being L: H=1: 2～3, and said high spiral shell rib 1 and low spiral shell rib 1 ' difference in height F be 11～13mm.The bottom left interior angle radius R 2 of spiral shell rib is 20mm among the feed zone A of this screw rod, and right bottom interior angle radius R 1 is 16mm.Angle a is 10 degree between spiral shell rib side 14 and the vertical line 5 in feed zone A.The compartment of terrain is distributed with breach 4 on high spiral shell rib 1 periphery.In breach 4 bottoms is circular arc 13.Angle e between breach 4 left sides and the right is designed to 60 degree.High spiral shell rib 1 and low spiral shell rib 1 ' difference in height F be 12mm.
Above-mentioned fluxing zone B is provided with and breaks off spiral shell rib 11 and do not break off spiral shell rib 12; Said disconnection spiral shell rib 11 compartment of terrains are distributed in the rear portion of fluxing zone B; Saidly do not break off the front portion that spiral shell rib 12 is distributed in fluxing zone B, said adjacent high spiral shell rib 1 and low spiral shell rib 1 ' between pitch L and fluxing zone B last adjacent two do not break off pitch H between the spiral shell rib 12 than being L: H=1: 2～3.
Claims (9)
1. screw rod; Include feed zone (A), fluxing zone (B) and extruding zone (C); Said fluxing zone (B) and extruding zone (C) are provided with the spiral shell rib; It is characterized in that: said feed zone (A) is provided with the spiral shell rib of the branch of height, and the pitch (H) between the last adjacent two spiral shell ribs of wherein adjacent high spiral shell rib (1) and the pitch (L) between the low spiral shell rib (1 ') and fluxing zone (B) is than being L: H=1: 2～3, and the difference in height (F) of said high spiral shell rib (1) and low spiral shell rib (1 ') is 11～13mm.
2. screw rod according to claim 1 is characterized in that: the interior angular radius (R2) of the bottom left of spiral shell rib is 20mm in the said feed zone (A).
3. screw rod according to claim 2 is characterized in that: angle (a) is 10 degree between middle spiral shell rib side (14) of said feed zone (A) and the vertical line (5).
4. screw rod according to claim 2 is characterized in that: angular radius (R1) is 16mm in the right bottom of said feed zone (A) spiral shell rib.
5. according to arbitrary described screw rod in the claim 1 to 4, it is characterized in that: the compartment of terrain is distributed with breach (4) on said high spiral shell rib (1) periphery.
6. screw rod according to claim 5 is characterized in that: described breach (4) bottom is circular arc (13).
7. screw rod according to claim 5 is characterized in that: the angle (e) between described breach (4) left side and the right is 60 degree.
8. according to arbitrary described screw rod in the claim 1 to 4, it is characterized in that: said high spiral shell rib (1) is 12mm with the difference in height (F) of low spiral shell rib (1 ').
9. according to arbitrary described screw rod in the claim 1 to 4; It is characterized in that: said fluxing zone (B) is provided with and breaks off spiral shell rib (11) and do not break off spiral shell rib (12); Said disconnection spiral shell rib (11) compartment of terrain is distributed in the rear portion of fluxing zone (B); Saidly do not break off the front portion that spiral shell rib (12) is distributed in fluxing zone (B), said adjacent high spiral shell rib (1) and the pitch (L) between the low spiral shell rib (1 ') and fluxing zone (B) last adjacent two do not break off pitch (H) between the spiral shell rib (12) than being L: H=1: 2～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202040058U CN202114886U (en) | 2011-06-13 | 2011-06-13 | Screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202040058U CN202114886U (en) | 2011-06-13 | 2011-06-13 | Screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202114886U true CN202114886U (en) | 2012-01-18 |
Family
ID=45455982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202040058U Expired - Fee Related CN202114886U (en) | 2011-06-13 | 2011-06-13 | Screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202114886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275276A (en) * | 2011-06-13 | 2011-12-14 | 浙江栋斌橡机螺杆有限公司 | Screw |
-
2011
- 2011-06-13 CN CN2011202040058U patent/CN202114886U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275276A (en) * | 2011-06-13 | 2011-12-14 | 浙江栋斌橡机螺杆有限公司 | Screw |
| CN102275276B (en) * | 2011-06-13 | 2014-06-04 | 浙江栋斌橡机螺杆有限公司 | Screw |
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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 | ||
| 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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20190613 |