CN203901689U - Machine barrel for double-screw extruder - Google Patents
Machine barrel for double-screw extruder Download PDFInfo
- Publication number
- CN203901689U CN203901689U CN201420281199.5U CN201420281199U CN203901689U CN 203901689 U CN203901689 U CN 203901689U CN 201420281199 U CN201420281199 U CN 201420281199U CN 203901689 U CN203901689 U CN 203901689U
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- CN
- China
- Prior art keywords
- machine barrel
- screw extruder
- double
- barrel body
- section
- 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)
Abstract
The utility model discloses a machine barrel for a double-screw extruder. The machine barrel for the double-screw extruder comprises a machine barrel body, wherein a screw bolt cavity is arranged in the interior of the machine barrel body; the machine barrel body comprises an outer barrel and liner bushings inside the outer barrel; the liner bushings are carburization alloy steel liner bushings; the outer barrel comprises a feeding section, a venting section and a metering section; a feeding opening is formed in the feeding section; a closed water trough is formed in the middle part of the feeding section; a water inlet and a water outlet are formed in the closed water trough; a first air vent is formed in the venting section; a second air vent is formed in the edge of the first air vent; a discharging opening is formed in the material extrusion end of the machine barrel body; a wear-resistant alloy coating is arranged on the edge of the discharging opening. The machine barrel for the double-screw extruder, provided by the utility model, is the wear-resistant and corrosion-resistant machine barrel for the double-screw extruder; double air vents are formed in the machine barrel, so that low molecular substances are effectively separated and discharged from molten raw materials; products produced by the extruding machine are enabled to be smooth in the surface; the production and processing are smooth; moreover, the closed water trough is formed in the machine barrel body, so that the other components are effectively prevented from damages due to excessively high temperature of the machine barrel.
Description
Technical field
The utility model relates to plastics machinery and manufactures field, relates in particular to a kind of double screw extruder machine barrel.
Background technology
In plastic industry, double screw extruder is widely used always, in extruder process, at high temperature there is gasification in various degree in the raw material in extruder, the phenomenon such as decompose and separate out, thereby produce the lower-molecular substances such as a large amount of gas and precipitate, at extruder, raw material is added in hot-extrudable process, in semi-enclosed heating tube of raw material in extruder, lower-molecular substance can not well discharge and be mixed in the plastics of making moulding, cause product surface rough, production and processing has some setbacks, product mechanical properties decrease, the defects such as product leakiness.In addition, during due to work, the inwall of cylindrical shell will bear very large extrusion friction power, machine tube inner wall easily weares and teares, affect processing effect, shorten machine barrel service life simultaneously, thus require extruder barrel to have good abrasive resistance, simultaneously in some occasion, extruder had both needed to possess the ability that the high temperature resistant and temperature difference is suddenlyd change for a long time, tolerated again certain corrosion.
Utility model content
The purpose of this utility model has been to provide a kind of wear resistant corrosion resistant double screw extruder machine barrel with lining, machine barrel arranges double-exhaust port can be effectively by lower-molecular substance separated discharge from the raw material of melting, the product surface that extruder is produced is smooth, production and processing is smooth and easy, product mechanical property improves, simultaneously on machine barrel body, be provided with sealing flume, can effectively prevent that barrel zone temperature is too high and damage the miscellaneous part on machine barrel.
The technical solution adopted in the utility model is as follows:
A kind of double screw extruder machine barrel, comprise machine barrel body, machine barrel body interior is provided with screw rod chamber, described machine barrel body is comprised of the lining of urceolus and Qi Nei, described lining is carburizing alloy steel lining, described urceolus comprises feeding section, exhaust section and metering section, described feeding section is provided with charge door, feeding section middle part is provided with sealing flume, sealing flume is provided with inlet opening and apopore, described exhaust section is provided with first row gas port, first row gas port is provided with second row gas port on limit, described machine barrel body material extruding end is provided with discharging opening, the edge of discharging opening is provided with coated with wear-resisting alloy.
Described lining thickness is 2-4mm.
Described first row gas port and second row gas port are arranged side by side.
Described coated with wear-resisting alloy is tungsten carbide coating.
On described feeding section outer wall, be also provided with several reinforcement.
Compared with the prior art, the beneficial effects of the utility model are as follows:
The utility model, by increasing lining at machine tube inner wall, effectively prevents the wearing and tearing of screw rod to machine tube inner wall, extends machine barrel service life, use carburizing alloy steel lining, improve its wearability and corrosion resistance, at discharging opening, place is provided with coated with wear-resisting alloy, can accelerate blanking velocity; At feeding section middle part, be provided with sealing flume, sealing flume is provided with inlet opening and apopore, during use, injects cold water from inlet opening, can effectively prevent that barrel zone temperature is too high and damages the miscellaneous part on machine barrel; At exhaust section, double-exhaust port is set, improves exhaust effect, efficiently solve moisture or low molecular residual, effective Improving The Quality of Products, the quality requirement of assurance product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A cross-sectional view of Fig. 1;
Fig. 3 is the B-B cross-sectional view of Fig. 1;
Fig. 4 is the C-C cross-sectional view of Fig. 1.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model will be further described.
Referring to accompanying drawing, a kind of double screw extruder machine barrel, comprise machine barrel body, machine barrel body interior is provided with screw rod chamber 1, described machine barrel body is comprised of the lining 3 of urceolus 2 and Qi Nei, described lining 3 is carburizing alloy steel lining, thickness is 3mm, described urceolus 2 comprises feeding section 4, exhaust section 5 and metering section 6, described feeding section 4 is provided with charge door 7, feeding section 4 middle parts are provided with sealing flume 8, sealing flume 8 is provided with inlet opening 801 and apopore 802, described exhaust section 5 is provided with first row gas port 501, first row gas port is provided with second row gas port 502 on 501 limits, first row gas port 501 and second row gas port 502 are arranged side by side, described machine barrel body material extruding end is provided with discharging opening 9, the edge of discharging opening is provided with coated with wear-resisting alloy 10, described coated with wear-resisting alloy 10 is tungsten carbide coating, on described feeding section 4 outer walls, be also provided with several reinforcement 11.The utility model, by increasing lining 3 at machine tube inner wall, effectively prevents the wearing and tearing of screw rod to machine tube inner wall, extends machine barrel service life, use carburizing alloy steel lining, improve its wearability and corrosion resistance, at discharging opening place, be provided with coated with wear-resisting alloy 10, can accelerate blanking velocity; At feeding section middle part, be provided with sealing flume 8, sealing flume is provided with inlet opening 801 and apopore 802, and during use, from inlet opening, 801 inject cold water, can effectively prevent that barrel zone temperature is too high and damages the miscellaneous part on machine barrel; At exhaust section 5, double-exhaust port is set, improves exhaust effect, efficiently solve moisture or low molecular residual, effective Improving The Quality of Products, the quality requirement of assurance product.
Claims (5)
1. a double screw extruder machine barrel, comprise machine barrel body, machine barrel body interior is provided with screw rod chamber, it is characterized in that: described machine barrel body is comprised of the lining of urceolus and Qi Nei, described lining is carburizing alloy steel lining, described urceolus comprises feeding section, exhaust section and metering section, described feeding section is provided with charge door, feeding section middle part is provided with sealing flume, sealing flume is provided with inlet opening and apopore, described exhaust section is provided with first row gas port, first row gas port is provided with second row gas port on limit, described machine barrel body material extruding end is provided with discharging opening, the edge of discharging opening is provided with coated with wear-resisting alloy.
2. double screw extruder machine barrel according to claim 1, is characterized in that: described lining thickness is 2-4mm.
3. double screw extruder machine barrel according to claim 1, is characterized in that: described first row gas port and second row gas port are arranged side by side.
4. double screw extruder machine barrel according to claim 1, is characterized in that: described coated with wear-resisting alloy is tungsten carbide coating.
5. double screw extruder machine barrel according to claim 1, is characterized in that: on described feeding section outer wall, be also provided with several reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281199.5U CN203901689U (en) | 2014-05-28 | 2014-05-28 | Machine barrel for double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281199.5U CN203901689U (en) | 2014-05-28 | 2014-05-28 | Machine barrel for double-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203901689U true CN203901689U (en) | 2014-10-29 |
Family
ID=51775983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420281199.5U Expired - Fee Related CN203901689U (en) | 2014-05-28 | 2014-05-28 | Machine barrel for double-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203901689U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856273A (en) * | 2017-10-17 | 2018-03-30 | 张家港市欣达机械制造有限公司 | Hypergeometric reppears particle extruder |
| CN107984723A (en) * | 2017-11-15 | 2018-05-04 | 都江堰市江宁机械有限公司 | Bimetal cylinder processing technology |
-
2014
- 2014-05-28 CN CN201420281199.5U patent/CN203901689U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107856273A (en) * | 2017-10-17 | 2018-03-30 | 张家港市欣达机械制造有限公司 | Hypergeometric reppears particle extruder |
| CN107856273B (en) * | 2017-10-17 | 2024-04-19 | 雄县亚兴塑胶制品有限公司 | Super specific gravity granule extruding machine |
| CN107984723A (en) * | 2017-11-15 | 2018-05-04 | 都江堰市江宁机械有限公司 | Bimetal cylinder processing technology |
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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: 20141029 Termination date: 20150528 |
|
| EXPY | Termination of patent right or utility model |