CN102275276B - Screw - Google Patents
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- CN102275276B CN102275276B CN201110162724.2A CN201110162724A CN102275276B CN 102275276 B CN102275276 B CN 102275276B CN 201110162724 A CN201110162724 A CN 201110162724A CN 102275276 B CN102275276 B CN 102275276B
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- spiral shell
- shell rib
- screw
- zone
- screw rod
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Abstract
The invention relates to a screw. The screw comprises a feeding section (A), a plasticizing section (B) and an extruding section (C). Screw flights are arranged on the plasticizing section (B) and the extruding section (C). High screw flights and low screw flights are arranged on the feeding section (A), wherein the ratio of a screw distance (L) between a high screw flight (1) and a neighboring low screw flight (1') to a screw distance (H) between two neighboring screw flights on the plasticizing section (B) is represented by that: L:H=1:2-3. A height difference (F) between a high screw flight (1) and a neighboring low screw flight (1') is 11 to 13mm. With the screw provided by the invention, fracturing can be prevented, and materials can be uniformly delivered into the feeding section (A). With the screw, the delivering capacity of the screw and the plasticizing and dispersing effects can be substantially improved; functional areas are reasonably distributed, and the strength of the whole screw is improved. Therefore, the screw provided by the invention is a practical product which is worth being popularized.
Description
Technical field
The present invention relates to one for injection machine technical field, especially refer to a kind of for the screw rod on injection machine.
Background technology
Existing a kind of patent No. is that the Chinese utility model patent that CN201020548908.3 name is called " a kind of pair rank compression high-efficiency injection molding machine screw rod " discloses a kind of structure, and its structure is mainly made up of solid conveying section, compression melt zone, metering homogenizing zone.Wherein solid conveying section spiral groove depth is constant; Compression melt zone is the compression section, two rank of three segment compositions, 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 the first segment is conventional thread segment, and the second segment is pineapple mixing refining head structure.Three segment formula structures of compression melt zone are conducive to improve melting and plasticizing quality, are conducive to mix homogenizing with the metering homogenizing zone of pineapple mixing refining head.This novel screw rod is applicable 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, spiral shell rib part in charging place easily ruptures, and there will be the phenomenon of putty and burnt material, reason is that the spiral shell rib spacing of charging place is identical and thinner, and is smooth department on spiral shell rib, so easy anti-glue when charging, be difficult for charging and putty, there is burnt material because charging has some setbacks again, then have the rotation torsion that charging aperture is larger because putty will increase, thereby occur stress to concentrate and easily cause screw rod fracture.So its structure needs to improve.
Summary of the invention
Technical problem to be solved by this invention be provide for above-mentioned prior art present situation a kind of feed zone not easy fracture, can not burnt material and there will not be a kind of screw rod of anti-glue when feeding.
The present invention solves the problems of the technologies described above adopted technical scheme: this screw rod, include feed zone, fluxing zone and extruding zone, on described fluxing zone and extruding zone, be provided with spiral shell rib, it is characterized in that: the spiral shell rib dividing that is provided with height on described feed zone, wherein on the pitch between adjacent high spiral shell rib and low spiral shell rib and fluxing zone, the pitch ratio between adjacent two spiral shell ribs is 1: 2～3, and the difference in height of described high spiral shell rib and low spiral shell rib is 11～13mm.
As improvement, in described feed zone, in the bottom left of spiral shell rib, angular radius is preferably 20mm.
As further improvement, in described feed zone, between spiral shell rib side and vertical line, angle is chosen as 10 degree.
Improve, in the right bottom of described feed zone spiral shell rib, angular radius may be selected to be 16mm again.
Improve again, in described high spiral shell rib periphery, also can be distributed with breach in compartment of terrain.
Improve, described breach bottom can be preferably circular arc again; Angle between described the breach left side and the right can be designed to 60 degree.
Improve, the difference in height of described high spiral shell rib and low spiral shell rib can be preferably 12mm again.
Improve again, on described fluxing zone, be provided with and disconnect spiral shell rib and do not disconnect spiral shell rib, described disconnection spiral shell rib compartment of terrain is distributed in the rear portion of fluxing zone, the described front portion that does not disconnect spiral shell rib and be distributed in fluxing zone, on the pitch between described adjacent high spiral shell rib and low spiral shell rib and fluxing zone, adjacent two pitch ratios that do not disconnect between spiral shell rib are 1: 2～3.Disconnection spiral shell rib on fluxing zone can effectively improve plasticizing effect, make plasticizing more evenly, more perfect.
Compared with prior art, the present invention adopts the spiral shell rib dividing that is provided with height on feed zone, wherein on the pitch between adjacent high spiral shell rib and low spiral shell rib and fluxing zone, the pitch ratio between adjacent two spiral shell ribs is L: H=1: 2～3, and the difference in height of described high spiral shell rib and low spiral shell rib is 11～13mm.The advantage of this structure is: first, because the spiral shell rib density of feed zone is larger than the spiral shell rib density of fluxing zone, so the direction that the material of feeding charging aperture can be large to space flows, thereby reduce the stress of feed zone screw rod and improved the anti-break performance of feed zone screw rod, next is, the spiral shell rib of feed zone has dividing of height, so just can better the material of feeding 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 charging aperture can not enter inward, and can stay in above charging aperture, and when serious, the material that enters charging aperture also can outwards spue from charging aperture.Have again, in the spiral shell rib periphery of feed zone of the present invention, compartment of terrain is distributed with breach, these breach can be involved in better charging by charging during along with the rotation of screw rod and carry to fluxing zone, thereby have further promoted the material of charging aperture to move inward, and eliminate the anti-glue phenomenon of charging aperture.In sum, screw rod of the present invention can prevent fracture effectively, can successfully make again material flow from feed zone to fluxing zone simultaneously, no matter be the conveying capacity of whole screw rod, or the effect that plasticizing disperses has significant raising, focus on the reasonable layout of functional areas simultaneously, then improved the intensity of whole screw rod.So the present invention is very practical product of one, is worthy of popularization.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is along N to perspective view in Fig. 1;
Fig. 3 is the unfolding assumption diagram of feed zone spiral shell rib in Fig. 1;
Fig. 4 is the enlarged drawing of I portion in Fig. 1;
Fig. 5 is the profile of the A-A line in Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
The screw rod of the present embodiment as shown in Figures 1 to 5, include feed zone A, fluxing zone B and extruding zone C, on described fluxing zone B and extruding zone C, be provided with spiral shell rib, it is characterized in that: the spiral shell rib dividing that is provided with height on described feed zone A, wherein adjacent high spiral shell rib 1 and low spiral shell rib 1 ' between pitch L and pitch H between the upper adjacent two spiral shell ribs of fluxing zone B than being L: H=1: 2～3, and described high spiral shell rib 1 and low spiral shell rib 1 ' difference in height F be 11～13mm.In the feed zone A of this screw rod, the bottom left interior angle radius R 2 of spiral shell rib is 20mm, and right bottom interior angle radius R 1 is 16mm.In feed zone A, between spiral shell rib side 14 and vertical line 5, angle a is 10 degree.In high spiral shell rib 1 periphery, compartment of terrain is distributed with breach 4.Be circular arc 13 in breach 4 bottoms.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.
On above-mentioned fluxing zone B, be provided with and disconnect spiral shell rib 11 and do not disconnect spiral shell rib 12, described disconnection spiral shell rib 11 compartment of terrains are distributed in the rear portion of fluxing zone B, the described front portion that does not disconnect spiral shell rib 12 and be distributed in fluxing zone B, described adjacent high spiral shell rib 1 and low spiral shell rib 1 ' between pitch L and fluxing zone B upper adjacent two do not disconnect pitch H between spiral shell rib 12 than being L: H=1: 2～3.
Claims (4)
1. a screw rod, include feed zone (A), fluxing zone (B) and extruding zone (C), on described fluxing zone (B) and extruding zone (C), be provided with spiral shell rib, it is characterized in that: the spiral shell rib dividing that is provided with height on described feed zone (A), wherein the ratio of the pitch (H) between the upper adjacent two spiral shell ribs of the pitch (L) between adjacent high spiral shell rib (1) and low spiral shell rib (1 ') and fluxing zone (B) is L:H=1:2～3, and described high spiral shell rib (1) is 11～13mm with the difference in height (F) of low spiral shell rib (1 '); In described feed zone (A), in the bottom left of spiral shell rib, angular radius (R2) is 20mm; In described feed zone (A), between spiral shell rib side (14) and vertical line (5), angle (a) is 10 degree; In the right bottom of described feed zone (A) spiral shell rib, angular radius (R1) is 16mm; In described high spiral shell rib (1) periphery, compartment of terrain is distributed with breach (4); On described fluxing zone (B), be provided with and disconnect spiral shell rib (11) and do not disconnect spiral shell rib (12), described disconnection spiral shell rib (11) compartment of terrain is distributed in the rear portion of fluxing zone (B), the described front portion that does not disconnect spiral shell rib (12) and be distributed in fluxing zone (B), the pitch (L) between described adjacent high spiral shell rib (1) and low spiral shell rib (1 ') and fluxing zone (B) upper adjacent two do not disconnect pitch (H) between spiral shell rib (12) than being L:H=1:2～3.
2. screw rod according to claim 1, is characterized in that: described breach (4) bottom is circular arc (13).
3. screw rod according to claim 1, is characterized in that: the angle (e) between described breach (4) left side and the right is 60 degree.
4. screw rod according to claim 1, is characterized in that: described high spiral shell rib (1) is 12mm with the difference in height (F) of low spiral shell rib (1 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110162724.2A CN102275276B (en) | 2011-06-13 | 2011-06-13 | Screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110162724.2A CN102275276B (en) | 2011-06-13 | 2011-06-13 | Screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102275276A CN102275276A (en) | 2011-12-14 |
| CN102275276B true CN102275276B (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110162724.2A Active CN102275276B (en) | 2011-06-13 | 2011-06-13 | Screw |
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| Country | Link |
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| CN (1) | CN102275276B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275771A (en) * | 2014-08-15 | 2015-01-14 | 北京启能国际能源管理有限公司 | Thermal shield of injection molding machine for bottle blanks |
| CN109666874B (en) * | 2018-12-28 | 2020-06-09 | 广州阿旺斯复合材料技术有限公司 | High-strength screw |
| CN113466132B (en) * | 2021-07-01 | 2022-04-19 | 哈尔滨金融学院 | Hyperspectrum-based rice blast cycle detection equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201208792Y (en) * | 2008-04-25 | 2009-03-18 | 施金亨 | Energy-saving screw rod |
| CN201272005Y (en) * | 2008-10-13 | 2009-07-15 | 中山力劲机械有限公司 | Backward flow mixing screw rod |
| CN201784159U (en) * | 2010-09-19 | 2011-04-06 | 余姚市绿岛橡塑机械设备有限公司 | High efficiency conical double-screw |
| CN202114886U (en) * | 2011-06-13 | 2012-01-18 | 浙江栋斌橡机螺杆有限公司 | Screw |
-
2011
- 2011-06-13 CN CN201110162724.2A patent/CN102275276B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201208792Y (en) * | 2008-04-25 | 2009-03-18 | 施金亨 | Energy-saving screw rod |
| CN201272005Y (en) * | 2008-10-13 | 2009-07-15 | 中山力劲机械有限公司 | Backward flow mixing screw rod |
| CN201784159U (en) * | 2010-09-19 | 2011-04-06 | 余姚市绿岛橡塑机械设备有限公司 | High efficiency conical double-screw |
| CN202114886U (en) * | 2011-06-13 | 2012-01-18 | 浙江栋斌橡机螺杆有限公司 | Screw |
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| Publication number | Publication date |
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| CN102275276A (en) | 2011-12-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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. |
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| CP03 | Change of name, title or address |