CN203496261U - Special screw for extrusion molding with high sealant volume - Google Patents
Special screw for extrusion molding with high sealant volume Download PDFInfo
- Publication number
- CN203496261U CN203496261U CN201320331152.0U CN201320331152U CN203496261U CN 203496261 U CN203496261 U CN 203496261U CN 201320331152 U CN201320331152 U CN 201320331152U CN 203496261 U CN203496261 U CN 203496261U
- Authority
- CN
- China
- Prior art keywords
- screw
- extrusion molding
- screw rod
- section
- diameter
- 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
Links
Images
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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- 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
- B29C48/635—Eccentrically rotating screws; Screws revolving around an axis other than their central axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a special screw for extrusion molding with high sealant volume. The screw comprises a screw body which consists of a feeding section, a compression plasticizing section and a discharging section. The screw body is provided with a screw thread, and a thread groove is not isobathic and isometric. The diameter of the compression plasticizing section is 1%-5% greater than that of the feeding section and the discharging section. The diameters of the feeding and discharging sections are equal. The ratio of length to diameter of the screw is (20-25):1. Three molybdenum-nickel-chromium alloy plating layers are arranged on the surface of the screw body 1. The special screw provided by the utility model guarantees the stability of the extrusion amount, and the thread groove is not isometric, so that the uniformity of an extrusion molding insulating layer is greatly improved. The thread groove is not isobathic, and the extrusion molding amount of the special screw is improved by 15% compared with that of common extrusion equipment.
Description
Technical field
The utility model belongs to extruder screw field, is specifically related to a kind of high gel quantity extrusion molding bolt special.
Background technology
Screw rod is one of plastic extruder major critical component, and it not only plays a part to carry plastics, the difficulty or ease of the plasticizing of plastics, extruding, moulding is also played an important role simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of high gel quantity extrusion molding bolt special, has improved and has extruded quality, reduces material consumption.
The technical solution of the utility model is: a kind of high gel quantity extrusion molding bolt special, comprise screw rod body, it is characterized in that: screw rod body is comprised of feed zone, compression fluxing zone, discharging section, and described screw rod body is provided with screw thread, thread groove is that non-grade is dark non-equidistant; The diameter of described compression fluxing zone is than the large 1-5% of the diameter of feed zone, discharging section, and the diameter of institute's feed zone, discharging section is identical; The draw ratio of described screw rod is 20-25: 1.
Further, the surface of described screw rod body is provided with 3 molybdenum nichrome coatings.
Further, the draw ratio of described screw rod is 25: 1.
Beneficial effect: screw surface is provided with 3 molybdenum nichrome coatings, reduces the bonding of plastics, ensures the stable of extruder output, can reduce colour changing withdrawal rate 15～20% simultaneously; Thread groove adopts non-equidistant, and plastic extruding insulated layer uniformity improves greatly, and density ratio is common, and to extrude variation less, thereby obtain more outstanding electric property, reduced flow blind angle in machine barrel; Thread groove adopts non-grade dark, and extrusion molding extruder output improves 15% than isometrical common extrusion equipment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1-screw rod body in figure, 2-screw thread, 3-thread groove, 1-1, feed zone, 1-2 compresses fluxing zone, and 3, discharging section.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
A high gel quantity extrusion molding bolt special, comprises screw rod body 1, and screw rod body 1 is comprised of feed zone 1-1, compression fluxing zone 1-2, discharging section 1-3, and described screw rod body 1 is provided with screw thread 2, and thread groove 3 is that non-grade is dark non-equidistant; The diameter of described compression fluxing zone 1-2 is than the large 1-5% of diameter of feed zone 1-1, discharging section 1-3, and the diameter of the feed zone 1-1 of institute, discharging section 1-3 is identical; The draw ratio of described screw rod is 20-25: 1.
Further, the surface of described screw rod body 1 is provided with 3 molybdenum nichrome coatings.
Further, the draw ratio of described screw rod is 25: 1.
Above-described embodiment is only for the utility model is clearly described, and is not the restriction to the utility model embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection domain of the present utility model.
Claims (2)
1. high gel quantity extrusion molding bolt special, comprise screw rod body (1), it is characterized in that: screw rod body (1) is comprised of feed zone (1-1), compression fluxing zone (1-2), discharging section (1-3), described screw rod body (1) is provided with screw thread (2), and thread groove (3) is that non-grade is dark non-equidistant; The diameter of described compression fluxing zone (1-2) is than the large 1-5% of diameter of feed zone (1-1), discharging section (1-3), and the diameter of institute's feed zone (1-1), discharging section (1-3) is identical; The draw ratio of described screw rod is 20-25:1.
2. high gel quantity extrusion molding bolt special according to claim 1, is characterized in that: the draw ratio of described screw rod is 25:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320331152.0U CN203496261U (en) | 2013-06-09 | 2013-06-09 | Special screw for extrusion molding with high sealant volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320331152.0U CN203496261U (en) | 2013-06-09 | 2013-06-09 | Special screw for extrusion molding with high sealant volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203496261U true CN203496261U (en) | 2014-03-26 |
Family
ID=50327264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320331152.0U Expired - Fee Related CN203496261U (en) | 2013-06-09 | 2013-06-09 | Special screw for extrusion molding with high sealant volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203496261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL131216U1 (en) * | 2022-12-27 | 2024-07-01 | Uniwersytet Przyrodniczy W Lublinie | Screw for the extruder |
-
2013
- 2013-06-09 CN CN201320331152.0U patent/CN203496261U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL131216U1 (en) * | 2022-12-27 | 2024-07-01 | Uniwersytet Przyrodniczy W Lublinie | Screw for the extruder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203228394U (en) | Plastic pipe material extruding die | |
| CN104589618A (en) | Special two-section BM type screw rod for wire and cable extruder | |
| CN202965165U (en) | Porous screw extruder | |
| CN203496261U (en) | Special screw for extrusion molding with high sealant volume | |
| CN201579976U (en) | Special extruder screw rod for thermoplastic polyurethane | |
| CN202943854U (en) | Extrusion structure of plasticizing machine | |
| CN202412665U (en) | Machine head of extruding machine | |
| CN204526092U (en) | The special two sections of BM formula screw rods of electric wire extruder | |
| CN206124181U (en) | Extrusion molding screw rod | |
| CN102744861A (en) | Special screw for extruding electro-conductive plastic cable material | |
| CN202491414U (en) | Cone double screw | |
| CN202623248U (en) | Screw for double-screw plastic extrusion machine | |
| CN206983204U (en) | Multi-layer co-extruded mouth mold | |
| CN201235600Y (en) | Screw special for oxygen barrier EVOH extrusion | |
| CN203567162U (en) | Improved extrusion screw | |
| CN210880812U (en) | 80 conical double-screw extruder | |
| CN202448338U (en) | Conical single-screw plastic mixing extrusion device | |
| CN204296004U (en) | A kind of extruder screw | |
| CN204546998U (en) | The coated head of a kind of CABLE MATERIALS production bushing type | |
| CN204526093U (en) | A kind of Novel polypropylene screw for extruder structure | |
| CN204095106U (en) | Rubber extruding machine screw rod | |
| CN204076779U (en) | A kind of extrusion screw rod of thermoplastic composite | |
| CN204278468U (en) | Cross-head | |
| CN203592656U (en) | Plastic extruding machine mould | |
| CN203093011U (en) | Hexagonal-prism-shaped PP extruded particles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |