CN203945651U - A kind of screw rod - Google Patents
A kind of screw rod Download PDFInfo
- Publication number
- CN203945651U CN203945651U CN201420302165.XU CN201420302165U CN203945651U CN 203945651 U CN203945651 U CN 203945651U CN 201420302165 U CN201420302165 U CN 201420302165U CN 203945651 U CN203945651 U CN 203945651U
- Authority
- CN
- China
- Prior art keywords
- spiral shell
- screw rod
- shell rib
- transportation section
- mixing portion
- 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)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model discloses a kind of screw rod, described screw rod comprises the machine barrel of screw rod main body and cover loading screw main body, described screw rod main body comprises feed zone, the first mixing portion, compression section, the second mixing portion, transportation section, filter house and screw head, described machine barrel is provided with charging aperture near one end of feed zone, two ends, described compression section are respectively equipped with the first mixing portion and the second mixing portion, described the first mixing portion and the second mixing portion are equipped with the interruption spiral shell rib for mixed material, between described screw head and described transportation section, be provided with filter house, described transportation section is provided with the first spiral shell rib and the second spiral shell rib, described the first spiral shell rib and the second spiral shell rib are wound around described transportation section in the opposite direction, the surface of described machine barrel is provided with some for placing the shrinkage pool of heating element heater near the position of screw rod, described filter house is connected with described transportation section is detachable.Its advantage: further contaminant filter, the purity of guarantee material, the utility model is taked Easy-dismounting structure, the convenient impurity that takes out.
Description
Technical field
The utility model relates to a kind of screw rod, between described screw head and described transportation section, is provided with filter house, further contaminant filter, and the purity of guarantee material, the utility model is taked Easy-dismounting structure, the convenient impurity that takes out.
Background technology
Screw rod is as one of strength member of extruder, the parts of extruder conveying solid substance plastics, plastifying material and melt, its effect be to plastics stir, exert pressure, melting and conveying, these a series of processes are all that the rotation in machine barrel completes by screw rod, in the time that screw rod rotates, plastics are for producing friction between machine tube inner wall, screw rod spiral shell rib, screw channel and plastics, and material is pushed ahead in the rotation in machine barrel by screw rod.
The quality of screw design will directly affect quality and the output of plastic products, the screw rod of existing market is mainly divided into feed zone, compression section and transportation section, although be applicable to the processing of various materials, versatility is stronger, but still there is very important shortcoming, simplicity of design between the compression section of existing screw rod and feed zone and transportation section, cannot realize the fully mixing of material, due to the setting of unreasonable structure, cause partial material to be melted not thorough, plastify incomplete situation, occur that product composition mixes inhomogeneous phenomenon, some material still contains impurity after being output into mould, the service life of screw rod and machine barrel is short, and production efficiency is low and plasticizing dispersibility is poor, therefore its structure needs to improve.
Utility model content
The utility model relates to a kind of screw rod, it comprises screw rod main body and overlaps the machine barrel of loading screw main body, described screw rod main body comprises feed zone, the first mixing portion, compression section, the second mixing portion, transportation section, filter house and screw head, described machine barrel is provided with charging aperture near one end of feed zone, two ends, described compression section are respectively equipped with the first mixing portion and the second mixing portion, described the first mixing portion and the second mixing portion are equipped with the interruption spiral shell rib for mixed material, between described screw head and described transportation section, be provided with filter house, described transportation section is provided with the first spiral shell rib and the second spiral shell rib, described the first spiral shell rib and the second spiral shell rib are wound around described transportation section in the opposite direction, the surface of described machine barrel is provided with some for placing the shrinkage pool of heating element heater near the position of screw rod, described filter house is connected with described transportation section is detachable, between described screw head and described transportation section, set up filtration cylinder, further carry out contaminant filter, ensure the purity of material, the utility model is taked Easy-dismounting structure, the convenient impurity that takes out.
In preferred embodiments of the present utility model, the spaced surface of described machine barrel distributes for placing the shrinkage pool of heating element heater.
In preferred embodiments of the present utility model, the angle α between the top vertical line in the Yu Gai sideline, sideline of the axial section of described interruption spiral shell rib is 30 °～60 °.
In preferred embodiments of the present utility model, the effective length of described screw rod is 1441mm, and the length of described transportation section is 485mm, reasonably screw size, ensure that the solid material for fully melting can melt completely in transportation section, has improved the uniformity of product.
In preferred embodiments of the present utility model, the mobility of material all not etc., has been accelerated in the rib distance of described the first spiral shell rib and described the second spiral shell rib and rib peak, enhances productivity.
The beneficial effects of the utility model: the mixing of material between the adjacent activities groove of transportation section, accelerate plasticizing, reduce the technique used time, enhance productivity, between described screw head and described transportation section, be provided with filtration cylinder, and with removable connection, the convenient impurity that takes out, ensures material purity.
Brief description of the drawings
Fig. 1 is screw rod schematic diagram of the present utility model;
Fig. 2 is main structure chart of the present utility model;
Fig. 3 is A of the present utility model portion cutaway view;
Fig. 4 is filtration cylinder enlarged drawing of the present utility model.
Description of reference numerals: 1-transmission mechanism, 2-feed zone, 3-the first mixing portion, 4-compression section, 5-the second mixing portion, 6-transportation section, 7-screw head, 8-screw rod main body, 9-charging aperture, 10-tapping channel, 11-shrinkage pool, 12-machine barrel, 13-filters cylinder, 14-is interrupted spiral shell rib, 15-the first spiral shell rib, 16-the second spiral shell rib, 17-screen pack, 18-circular arc, 19-ring screw.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of detailed description of the invention of the utility model is further described in detail.
As shown in Figure 1, a kind of screw rod main body 8 of the present embodiment, it comprises feed zone 2, the first mixing portion 3, compression section 4, the second mixing portion 5, transportation section 6, filter house and screw head 7, feed zone 2, compression section 4 and transportation section 6 are equipped with spiral shell rib, 4 two ends, compression section are respectively equipped with the first mixing portion 3 and the second mixing portion 5, described the first mixing portion 3 and the second mixing portion 5 are equipped with the interruption spiral shell rib 14 for mixed material, the rear portion of described interruption spiral shell rib 14 has groove, angle between the top vertical line in the Yu Gai sideline, sideline of the axial section of described interruption spiral shell rib 14 is acute angle, the sideline of the axial section of described interruption spiral shell rib 14 is connected with the sideline circular arc 18 of screw rod, transportation section 6 is provided with two spiral shell ribs that are wound around in the opposite direction screw rod, i.e. the first spiral shell rib 15 and the second spiral shell rib 16, transportation section 6 is equal difference pitch grading structure, pitch increases gradually along throughput direction, the length of transportation section 6 is 1/3 to 1/5 of spiro rod length, the feed zone 2 of screw rod and compression section 4 are uniform pitch structure, the rib peak of the first spiral shell rib 15 is greater than the rib peak of the second spiral shell rib 16, the rib of the second spiral shell rib 16 is apart from the rib distance that is less than the first spiral shell rib 15, before the second spiral shell rib 16 originates in the first spiral shell rib 15, after ending at the first spiral shell rib 15, the spaced surface of machine barrel 12 distributes for placing the shrinkage pool 11 of heating element heater, angle α between the top vertical line in the Yu Gai sideline, sideline of the axial section of interruption spiral shell rib 14 is 30 °～60 °, the effective length of screw rod is 1441mm, the effective length of transportation section 6 is 485mm, reasonably screw size, ensure that the solid material for fully melting can melt completely in transportation section 6, improve the uniformity of product.
Using method of the present utility model: screw rod is connected with transmission mechanism 1, by screw rod head in machine barrel 12, at the interior placement heating element heater of shrinkage pool 11 of machine barrel 12, the spiral shell rib of feed zone 2 is dextrorotation structure, prevent that material from oozing out from port, the spiral groove depth of feed zone 2 is gradually shallow, the spiral groove depth of compression section 4 is constant, the spiral groove depth of transportation section 6 is gradually shallow, the setting of the depth alternating structure of the spiral groove depth of screw zones, be conducive to mixing and homogenizing of material, material exists with solid form at feed zone 2, pushed gradually to screw head 7 directions along with the rotation of screw rod, the spiral groove depth of feed zone 2 shoals gradually, pressure increases, in screw rod rotary course with friction and the shrinkage pool 11 of machine barrel 12 in heating element heater, the temperature of material raises gradually, along with being fed forward of material, the inventory of melting increases gradually, but temperature now and plasticizing are still inhomogeneous, strengthen even effect through the second mixing portion 5, and move to transportation section 6, between screw head 7 and transportation section 6, be provided with filter house, filter house is a filtration cylinder 13, the surface of filtering cylinder 13 is provided with screen pack 17, filter in cylinder 13 and there is the cavity that holds impurity, filter cylinder 13 and be provided with ring screw 19 near an end surfaces of transportation section 6, filtering cylinder 13 rotates fastening by ring screw 19 and described transportation section 6, become can spirally be connected with screw rod owing to filtering cylinder 13, after screw rod end of run, can be rotated dismounting, take out residual impurity, fused materials rotation is transported to screw head 7 by last screw rod, gap by screw head 7 with machine barrel 12 grooves, material is transferred to tapping channel 10.
As shown in Figure 2, a kind of machine barrel 12 of the present embodiment, the surface of machine barrel 12 is provided with some for placing the shrinkage pool 11 of heating element heater near the position of screw rod, machine barrel 12 is provided with charging aperture 9 near one end of feed zone 2, and machine barrel 12 is cylindrical, and the front end of machine barrel 12 is provided with the groove matching with screw head 7, screw head 7 is close to the groove of machine barrel 12, and be provided with gap with the groove of machine barrel 12, and the diameter in gap is identical with tapping channel 10, and tapping channel 10 is communicated with groove by gap.
As shown in Figure 4, between screw head 7 of the present utility model and transportation section 6, be provided with filter house, described filter house is a filtration cylinder 13, the surface of filtering cylinder 13 is provided with screen pack 17, filter in cylinder 13 and there is the cavity that holds impurity, filter cylinder 13 and be provided with ring screw 19 near an end surfaces of transportation section 6, the other end and screw head 7 are welded as a whole, filtering cylinder 13 rotates fastening by ring screw 19 and described transportation section 6, between transportation section 6 and screw head 7, be provided with and filter cylinder 13, material is entered before screw head 7 after by transportation section 6, further carry out contaminant filter, ensure the purity of material, along with screw rod is pushed ahead, fused materials penetrates filtration cylinder 13 and enters screw head 7, remaining a small amount of solid impurity resides in the cavity that filters cylinder 13, become can spirally be connected with screw rod owing to filtering cylinder 13, after screw rod end of run, can be rotated dismounting, take out residual impurity.
More than describe preferred embodiment of the present utility model in detail.We should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work, for example change of the increase to transportation section 6 structures or minimizing or filter house shape.Therefore; any amendment that all technical staff in the art does by logical analysis, reasoning, or a limited experiment on the basis of existing technology according to design of the present utility model, be equal to the technical scheme that replacement, improvement etc. obtain, all should be within by the determined protection domain of the claims book.
Claims (6)
1. a screw rod, it comprises screw rod main body and overlaps the machine barrel of loading screw main body, it is characterized in that: described screw rod main body comprises feed zone, the first mixing portion, compression section, the second mixing portion, transportation section, filter house and screw head, described machine barrel is provided with charging aperture near one end of feed zone, two ends, described compression section are respectively equipped with the first mixing portion and the second mixing portion, described the first mixing portion and the second mixing portion are equipped with the interruption spiral shell rib for mixed material, between described screw head and described transportation section, be provided with filter house, described transportation section is provided with the first spiral shell rib and the second spiral shell rib, described the first spiral shell rib and the second spiral shell rib are wound around described transportation section in the opposite direction, the surface of described machine barrel is provided with some for placing the shrinkage pool of heating element heater near the position of screw rod, described filter house is connected with described transportation section is detachable.
2. a kind of screw rod according to claim 1, it is characterized in that: described filter house is a filtration cylinder, described filtration cylinder is provided with ring screw near an end surfaces of transportation section, the other end and screw head are welded as a whole, and described filtration cylinder is fastening by ring screw and the rotation of described transportation section.
3. a kind of screw rod according to claim 1, it is characterized in that: the rear portion of described interruption spiral shell rib has groove, angle between the top vertical line in the Yu Gai sideline, sideline of the axial section of described interruption spiral shell rib is acute angle, and the sideline of the axial section of described interruption spiral shell rib is connected with the sideline circular arc of screw rod.
4. a kind of screw rod according to claim 1, is characterized in that: the length of described transportation section is spiro rod length 1/3 to 1/5.
5. a kind of screw rod according to claim 1, it is characterized in that: the rib peak of described the first spiral shell rib is greater than the rib peak of described the second spiral shell rib, the rib of described the second spiral shell rib is apart from the rib distance that is less than described the first spiral shell rib, before described the second spiral shell rib originates in described the first spiral shell rib, after ending at described the first spiral shell rib.
6. a kind of screw rod according to claim 1, is characterized in that: described transportation section is equal difference pitch grading structure, and pitch increases gradually along throughput direction, and the feed zone of described screw rod and described compression section are uniform pitch structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302165.XU CN203945651U (en) | 2014-06-06 | 2014-06-06 | A kind of screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302165.XU CN203945651U (en) | 2014-06-06 | 2014-06-06 | A kind of screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203945651U true CN203945651U (en) | 2014-11-19 |
Family
ID=51887709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420302165.XU Expired - Fee Related CN203945651U (en) | 2014-06-06 | 2014-06-06 | A kind of screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203945651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182689A (en) * | 2016-08-30 | 2016-12-07 | 舟山市第塑料机械有限公司 | A kind of multisection type complex screw |
-
2014
- 2014-06-06 CN CN201420302165.XU patent/CN203945651U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182689A (en) * | 2016-08-30 | 2016-12-07 | 舟山市第塑料机械有限公司 | A kind of multisection type complex screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20150606 |
|
| EXPY | Termination of patent right or utility model |