CN106003659A - Threaded extrusion screw with grooves - Google Patents
Threaded extrusion screw with grooves Download PDFInfo
- Publication number
- CN106003659A CN106003659A CN201610366608.5A CN201610366608A CN106003659A CN 106003659 A CN106003659 A CN 106003659A CN 201610366608 A CN201610366608 A CN 201610366608A CN 106003659 A CN106003659 A CN 106003659A
- Authority
- CN
- China
- Prior art keywords
- extrusion
- screw
- extrusion screw
- grooves
- threaded
- 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.)
- Pending
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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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a threaded extrusion screw with grooves, and aims at solving the problem that melted resin extruded by an existing screw usually contains non-melted particles which influence the late filming quality of the resin. The threaded extrusion screw with the grooves comprises an extrusion screw body. The threaded extrusion screw with the grooves is characterized in that the extrusion screw body comprises a rod body (1), and threaded parts (2) arranged on the rod body (1); the grooves (3), which are arranged along the threaded parts (2), are formed in the threaded parts (2); the width of each groove (3) is gradually increased and then decreased along the corresponding threaded part (2). The threaded extrusion screw with the grooves has the advantages of being small in pressure variation, and preventing the non-melted resin from being extruded.
Description
Technical field
The present invention relates to a kind of screw rod, be specifically related to fluted screw thread extrusion bar.
Background technology
At present, existing extrusion device includes transport pipeline, the screw rod being arranged in transport pipeline, and gives the heater of transport pipeline heating and thermal insulation.Screw rod of the prior art is all to use the body of rod and the screw thread composition being arranged on the body of rod, and the spacing between screw thread is consistent.Existing screw rod can only reach the function of extrusion, and owing to the spacing of screw thread is consistent, usually occur having non-melt granules in the molten resin of extrusion, affect the quality of resin later stage film forming.
Summary of the invention
Present invention mainly solves existing screw rod and usually occurred that the molten resin extruded has non-melt granules, the problem affecting the quality of resin later stage film forming, it is provided that a kind of tool fluted screw thread extrusion bar solving the problems referred to above.
The present invention is achieved through the following technical solutions:
Has fluted screw thread extrusion bar, including extrusion screw rod body, described extrusion screw rod body includes the body of rod and the screw element being arranged on the body of rod, and described screw element has the groove arranged along this screw element, and the width of described groove reduces after being gradually increased along screw element.
The present invention change by groove width, can effectively intercept the non-molten resin that granule is bigger, and matched by the heater on extrusion device, by the non-molten resin heating and melting again of smaller particle, and then effectively prevent that the resin extruded by extrusion device has non-melt granules.Meanwhile, be can guarantee that by the setting of this structure during intercepting non-molten resin, the pressure range in this screw rod is less, meet the pressure stability of extrusion liquid, and then the quality of film forming is effectively ensured.
Further, the width of described groove is not more than the spacing in screw element between two spirals.
In order to reach optimally barriering effect, the quantity of described extrusion screw rod body is two or more, and these plural extrusion screw rod body head and the tail connect.
In order to reach optimal barriering effect, between said two extrusion screw rod body, junction is additionally provided with barriers.
Further, described barriers, by connecting rod, is arranged on the raised line composition of connecting rod outer surface；Described raised line is that 30 degree of angles are arranged with the axis of connecting rod.By the setting of this barriers, not only it is only capable of preferably non-molten resin being got rid of, and can also effectively prevent the generation of bubble in extrusion, it is to avoid the bubble of generation is on impact during film forming, and effect is the most notable.
Preferably, the quantity of described raised line is more than three, is evenly distributed in connecting rod outer surface.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, the present invention change by groove width, can effectively intercept the non-molten resin that granule is bigger；
2, during the setting of present configuration can guarantee that and intercepts non-molten resin, the pressure range in this screw rod is less, meets the pressure stability of extrusion liquid, and then the quality of film forming is effectively ensured.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
The parts title of labelling and correspondence in accompanying drawing:
1-extrusion screw rod body, 2-screw element, 3-groove, 4-barriers.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.
Embodiment 1
Has fluted screw thread extrusion bar, as shown in Figure 1, including extrusion screw rod body, described extrusion screw rod body includes the body of rod 1 and the screw element 2 being arranged on the body of rod 1, having the groove 3 arranged along this screw element 2 on described screw element 2, the width of described groove 3 reduces after being gradually increased along screw element 2.The width of described groove 3 is not more than the spacing in screw element 2 between two spirals.The quantity of described extrusion screw rod body is two or more, and these plural extrusion screw rod body head and the tail connect.
Embodiment 2
The present embodiment is with the difference of embodiment 1, and the present embodiment also add barriers 4, is specifically provided that
Between said two extrusion screw rod body, junction is additionally provided with barriers 4.Described barriers 4, by connecting rod, is arranged on the raised line composition of connecting rod outer surface；Described raised line is that 30 degree of angles are arranged with the axis of connecting rod.
The quantity of described raised line is more than three, is evenly distributed in connecting rod outer surface.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only the detailed description of the invention of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.
Claims (6)
1. has fluted screw thread extrusion bar, including extrusion screw rod body, it is characterized in that, described extrusion screw rod body includes the body of rod (1) and the screw element (2) being arranged on the body of rod (1), having the groove (3) arranged along this hand of spiral on described screw element (2), the width of described groove (3) reduces after being gradually increased along screw element (2).
Tool the most according to claim 1 fluted screw thread extrusion bar, it is characterised in that the width of described groove (3) is not more than the spacing in screw element (2) between two spirals.
Tool the most according to claim 1 fluted screw thread extrusion bar, it is characterised in that the quantity of described extrusion screw rod body is two or more, these plural extrusion screw rod body head and the tail connect.
Tool the most according to claim 3 fluted screw thread extrusion bar, it is characterised in that between said two extrusion screw rod body, junction is additionally provided with barriers (4).
Tool the most according to claim 4 fluted screw thread extrusion bar, it is characterised in that described barriers (4), by connecting rod, is arranged on the raised line composition of connecting rod outer surface；Described raised line is that 30 degree of angles are arranged with the axis of connecting rod.
Tool the most according to claim 5 fluted screw thread extrusion bar, it is characterised in that the quantity of described raised line is more than three, is evenly distributed in connecting rod outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366608.5A CN106003659A (en) | 2016-05-30 | 2016-05-30 | Threaded extrusion screw with grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366608.5A CN106003659A (en) | 2016-05-30 | 2016-05-30 | Threaded extrusion screw with grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106003659A true CN106003659A (en) | 2016-10-12 |
Family
ID=57091309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610366608.5A Pending CN106003659A (en) | 2016-05-30 | 2016-05-30 | Threaded extrusion screw with grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106003659A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4341474A (en) * | 1980-08-27 | 1982-07-27 | Wheeler Jr Norton C | Extruder screw |
| CN101134362A (en) * | 2007-04-30 | 2008-03-05 | 陈津生 | Polylactic acid sheet material and production equipment thereof |
-
2016
- 2016-05-30 CN CN201610366608.5A patent/CN106003659A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4341474A (en) * | 1980-08-27 | 1982-07-27 | Wheeler Jr Norton C | Extruder screw |
| CN101134362A (en) * | 2007-04-30 | 2008-03-05 | 陈津生 | Polylactic acid sheet material and production equipment thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
|
| RJ01 | Rejection of invention patent application after publication |