CN2868650Y - Screw extruder - Google Patents
Screw extruder Download PDFInfo
- Publication number
- CN2868650Y CN2868650Y CNU2006200536486U CN200620053648U CN2868650Y CN 2868650 Y CN2868650 Y CN 2868650Y CN U2006200536486 U CNU2006200536486 U CN U2006200536486U CN 200620053648 U CN200620053648 U CN 200620053648U CN 2868650 Y CN2868650 Y CN 2868650Y
- Authority
- CN
- China
- Prior art keywords
- screw
- screw rod
- sections
- barrel
- screw extruder
- 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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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
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A screw extruder comprises a feed cylinder. Two ends of the feed cylinder are respectively arranged with a charging opening which is arranged between the two charging openings. A screw is arranged in the feed cylinder on which two sections of screw threads are provided. The spiral direction of the two sections of screw threads is opposite, and the discharging opening is arranged on the feed cylinder and at the corresponding location of the joint of the two sections of screw threads that are provided on the screw. This screw extruder has eliminated the faults that the screw is not uniform in stress and not stable in mobility and the bearing is prone to be destroyed when the screw is running. The utility model has the advantages of rational structure and high production efficiency.
Description
[technical field]
The utility model relates to a kind of screw extruder that is applied to industries such as plastics, food.
[background technology]
Please refer to Fig. 1, existing screw extruder commonly used is provided with barrel 5, and these barrel 5 one ends have discharging opening 2, and the other end has charge door 3, one screw rods 1 to place in this barrel 5 and by the transmission system driven rotary.These screw rod 1 one ends are supported by bearing 4.When screw extruder was worked, processed material added from charge door 3, pushes ahead under the rotary action of screw rod 1, finishes a series of process.Because the structural limitations of this kind screw extruder, screw rod 1 is the unidirectional screw rod of single shaft, have only the feed inlet end of barrel 5 to establish a bearing 4, and do not have bearings at discharging opening 2 one ends, and two ends unbalance stress during work, the exercise performance instability, more easy to wear; Be subjected to the propulsive thrust effect of material during screw rod 1 work simultaneously, reduce the service life of its terminal bearing 4.
[utility model content]
In order to overcome the problem that existing screw extruder exists, it is a kind of rational in infrastructure that the utility model provides, and screw rod is stressed evenly, stable performance, the screw extruder of high life.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of screw extruder is provided, this screw extruder comprises a barrel, a charging aperture is respectively established at these barrel two ends, and between these two charging apertures, establish a discharging opening, be provided with a screw rod in this barrel, this screw rod is provided with two sections screw threads, and the hand of spiral of these two sections screw threads is opposite, this discharging opening be located on the barrel with this screw rod on two sections positions that the screw thread junction is corresponding.
Above-mentioned screw extruder, described screw rod two ends are equipped with a bearings, and the exercise performance of screw rod can improve greatly.
Above-mentioned screw extruder, the hand of spiral of two sections screw threads on the described screw rod is opposite, during work the direction of propulsion of material be from the screw rod two ends toward middle or from middle toward two, the active force at screw rod two ends is cancelled out each other.
Above-mentioned screw extruder, described barrel have two charging apertures, and production efficiency can significantly improve.
The beneficial effects of the utility model are: it is fragile to have eliminated screw rod when work unbalance stress, exercise performance instability, bearing, the defective that screw rod is easy to wear, have rational in infrastructure, advantage of high production efficiency.
[description of drawings]
Fig. 1 is the structural representation of prior art screw extruder.
Fig. 2 is the structural representation of the utility model screw extruder.
[specific embodiment]
See also Fig. 2, the utility model screw extruder comprises a barrel 8, and charging aperture 9,10 is established at these barrel 8 two ends respectively, and establishes a discharging opening 11 between these two charging apertures 9,10, is provided with a screw rod 7 in this barrel 8.This screw rod 7 is provided with two sections screw threads, and the hand of spiral of these two sections screw threads is opposite, and its two ends are supported by bearing 13,12 respectively.This discharging opening 11 be located on the barrel 8 with this screw rod 1 on two sections positions that the screw thread junction is corresponding.
The utility model screw extruder supports because screw rod 7 two ends are provided with bearing 13,12, and the exercise performance of screw rod 7 can improve greatly.The hand of spiral of two sections screw threads on the screw rod 7 is opposite again, during work the direction of propulsion of material be from screw rod 7 two ends toward middle or from middle toward two, the active force at screw rod 7 two ends is cancelled out each other.Simultaneously, described barrel 8 has two charging apertures 9,10, and production efficiency can significantly improve.
Claims (3)
1. screw extruder, comprise that a barrel (8) and places the screw rod (7) in this barrel (8), it is characterized in that: this barrel (8) two ends are respectively equipped with a charging aperture (9,10), this two charging aperture is provided with a discharging opening (11) between (9,10), this screw rod (7) is provided with two sections screw threads, the hand of spiral of these two sections screw threads is opposite, and this discharging opening (11) is located at this barrel (8) and goes up and corresponding position, the last two sections screw thread junctions of this screw rod (7).
2. screw extruder as claimed in claim 1 is characterized in that: the length of two sections screw threads on this screw rod (7) can be isometric or not isometric.
3. screw extruder as claimed in claim 1 is characterized in that: the two ends of this screw rod (7) are respectively equipped with a bearing (12,13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200536486U CN2868650Y (en) | 2006-01-11 | 2006-01-11 | Screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200536486U CN2868650Y (en) | 2006-01-11 | 2006-01-11 | Screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2868650Y true CN2868650Y (en) | 2007-02-14 |
Family
ID=37723581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200536486U Expired - Fee Related CN2868650Y (en) | 2006-01-11 | 2006-01-11 | Screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2868650Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001170A (en) * | 2010-03-12 | 2011-04-06 | 北京化工大学 | High molecular material balanced extruder and axial force balancing method thereof |
| CN105108999A (en) * | 2015-09-16 | 2015-12-02 | 成都爆米花信息技术有限公司 | Extruder |
| CN109794330A (en) * | 2019-03-12 | 2019-05-24 | 广州市丹爵通讯科技有限公司 | It is a kind of for the ore dressing environment-friendly type ball-grinding machine that work efficiency is high |
| CN110915841A (en) * | 2019-11-29 | 2020-03-27 | 南京滕达机械设备有限公司 | Special extruder for high-viscosity materials |
-
2006
- 2006-01-11 CN CNU2006200536486U patent/CN2868650Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001170A (en) * | 2010-03-12 | 2011-04-06 | 北京化工大学 | High molecular material balanced extruder and axial force balancing method thereof |
| CN102001170B (en) * | 2010-03-12 | 2013-11-20 | 北京化工大学 | High molecular material balanced extruder and axial force balancing method thereof |
| CN105108999A (en) * | 2015-09-16 | 2015-12-02 | 成都爆米花信息技术有限公司 | Extruder |
| CN109794330A (en) * | 2019-03-12 | 2019-05-24 | 广州市丹爵通讯科技有限公司 | It is a kind of for the ore dressing environment-friendly type ball-grinding machine that work efficiency is high |
| CN109794330B (en) * | 2019-03-12 | 2021-04-20 | 广州市丹爵通讯科技有限公司 | A environment-friendly ball-milling equipment that work efficiency is high for ore dressing |
| CN110915841A (en) * | 2019-11-29 | 2020-03-27 | 南京滕达机械设备有限公司 | Special extruder for high-viscosity materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070214 Termination date: 20100211 |