CN103481490A - Three-section plastic sheet forming threaded rod - Google Patents
Three-section plastic sheet forming threaded rod Download PDFInfo
- Publication number
- CN103481490A CN103481490A CN201310462687.6A CN201310462687A CN103481490A CN 103481490 A CN103481490 A CN 103481490A CN 201310462687 A CN201310462687 A CN 201310462687A CN 103481490 A CN103481490 A CN 103481490A
- Authority
- CN
- China
- Prior art keywords
- section
- plastic sheet
- threaded rod
- sheet forming
- length
- 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
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- 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
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
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- 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
- B29C48/64—Screws with two or more threads
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- 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
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
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- 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
- B29C48/54—Screws with additional forward-feeding elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Abstract
The invention relates to a three-section plastic sheet forming threaded rod. The three-section plastic sheet forming threaded rod comprises a threaded rod and a mounting shaft, and is characterized in that the threaded rod consists of a quick feeding section, a conveying section and an extrusion section sequentially; the quick feeding section has the length of 250 to 350 mm and the thread pitch of 30 to 40 mm; the conveying section has the length of 600 to 800 mm and the thread pitch of 50 to 60 mm; and the extrusion section has the length of 300 to 400 mm and the thread pitch of 30 to 40 mm. The three-section plastic sheet forming threaded rod is scientific and reasonable in structural design, easy to product and simple in structure, can effectively improve the plastic extrusion efficiency of a forming machine, and is a plastic sheet forming machine threaded rod with high innovativeness.
Description
Technical field
The invention belongs to the plastic sheet forming machine field, particularly a kind of syllogic plastic sheet shaping screw.
Background technology
Plastic sheet forming machine is by by PVC, PET, PS, PP, the raw materials such as ABS are delivered to the hot melt chamber by feed hopper, by hot melt, indoor screw rod transmission, to the die head place in equipment the place ahead, is the sheet material of thickness in the 0.1-2.0mm left and right in the extrusion molding of die head place, then through follow-up wrap-up, carries out rolling.Indoor its screw rod of the hot melt of existing sheet forming machine is mostly the screw rod of identical pitch, because material is still graininess in the front portion of hot melt chamber, along with the rising of temperature is progressively melted and is become slurry, realize stable the conveying for the granule materials that makes feed inlet end, can only turn down the rotating speed of screw rod, cause thus the screw rod transmission speed of forming machine low, the problem that shaping efficiency is low, at discharge port end, extrusion pressure is less, affects shaping efficiency; And, for the material of two kinds of raw materials mixing, the problem of incomplete mixing easily appears at the feed inlet end of screw rod.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of rational in infrastructure, transporting velocity is fast, can improve the syllogic plastic sheet shaping screw of charging uniformity coefficient.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of syllogic plastic sheet shaping screw, by screw rod and installation shaft, formed, it is characterized in that: screw rod consists of quick feeding section, transportation section and extruding zone successively, the length of quick feeding section is 250-350mm, pitch is 30-40mm, and the length of transportation section is 600-800mm, and pitch is 50-60mm, extruding zone length be 300-400mm, pitch is 30-40mm.
And described quick feeding section is double thread.
Advantage of the present invention and beneficial effect are:
1. this syllogic plastic sheet shaping screw, have the syllogic helicitic texture, comprises quick feeding section, transportation section and extruding zone, and the mass transport speed at its charging aperture place is fast, and have advantages of that mixing uniformity is good; Its transportation section can be carried the slurry of hot melt fast; Its extruding zone can improve extrusion pressure, thereby is beneficial to the extrusion molding of plastic sheet.
2. this syllogic plastic sheet shaping screw, its quick feeding section is double thread, it can further improve the transporting velocity of material at charging aperture.
3. scientific structure design of the present invention is reasonable, is easy to produce, simple in structure, can effectively improve the plastic extrusion efficiency of forming machine, is a kind of plastic sheet forming machine screw rod with higher innovation.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of syllogic plastic sheet shaping screw, screw rod and installation shaft 4, consist of, its innovation is: screw rod consists of quick feeding section 3, transportation section 2 and extruding zone 1 successively, and the length of quick feeding section is 250-350mm, pitch is 30-40mm, and the quick feeding section is double thread.
The length of transportation section is 600-800mm, and pitch is 50-60mm, extruding zone length be 300-400mm, pitch is 30-40mm.
This syllogic plastic sheet shaping screw, the mass transport speed at its charging aperture place is fast, and has advantages of that mixing uniformity is good; Its transportation section can be carried the slurry of hot melt fast; Its extruding zone can improve extrusion pressure, thereby is beneficial to the extrusion molding of plastic sheet.
Although disclosed embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that, in the spirit and scope that do not break away from the present invention and claims, various replacements, variation and modification are all possible, and therefore scope of the present invention is not limited to embodiment and the disclosed content of accompanying drawing.
Claims (2)
1. a syllogic plastic sheet shaping screw, by screw rod and installation shaft, formed, it is characterized in that: screw rod consists of quick feeding section, transportation section and extruding zone successively, the length of quick feeding section is 250-350mm, pitch is 30-40mm, and the length of transportation section is 600-800mm, and pitch is 50-60mm, extruding zone length be 300-400mm, pitch is 30-40mm.
2. syllogic plastic sheet shaping screw according to claim 1, it is characterized in that: described quick feeding section is double thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462687.6A CN103481490A (en) | 2013-09-29 | 2013-09-29 | Three-section plastic sheet forming threaded rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462687.6A CN103481490A (en) | 2013-09-29 | 2013-09-29 | Three-section plastic sheet forming threaded rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103481490A true CN103481490A (en) | 2014-01-01 |
Family
ID=49822249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310462687.6A Pending CN103481490A (en) | 2013-09-29 | 2013-09-29 | Three-section plastic sheet forming threaded rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103481490A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466132A (en) * | 2021-07-01 | 2021-10-01 | 哈尔滨金融学院 | Hyperspectrum-based rice blast cycle detection equipment |
-
2013
- 2013-09-29 CN CN201310462687.6A patent/CN103481490A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466132A (en) * | 2021-07-01 | 2021-10-01 | 哈尔滨金融学院 | Hyperspectrum-based rice blast cycle detection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |