CN203344294U - Double-screw to single-screw changed spiral extrusion molding device - Google Patents
Double-screw to single-screw changed spiral extrusion molding device Download PDFInfo
- Publication number
- CN203344294U CN203344294U CN201320430821XU CN201320430821U CN203344294U CN 203344294 U CN203344294 U CN 203344294U CN 201320430821X U CN201320430821X U CN 201320430821XU CN 201320430821 U CN201320430821 U CN 201320430821U CN 203344294 U CN203344294 U CN 203344294U
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- CN
- China
- Prior art keywords
- screw
- short
- extrusion molding
- length
- twin
- 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
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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
- B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
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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
- B29C48/395—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
- B29C48/40—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 using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin 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
- B29C48/395—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
- B29C48/40—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 using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/42—Non-identical or non-mirrored screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a double-screw to single-screw changed spiral extrusion molding device belonging to the field of plasticization and extrusion molding. The extrusion molding device provided by the utility model comprises a driving system, a long screw, a short screw and an extrusion cylinder, wherein the long screw and the short screw are respectively of a screw structure of the traditional single screw, the length of the short screw is 3/4-4/5 of the length of the long screw, the long screw and the short screw are respectively connected with two output shafts of the driving system, and threaded segments of the long screw and the short screw are packaged through the extrusion cylinder. The double-screw to single-screw changed spiral extrusion molding device combines the advantages of a single-screw extrusion molding device and a double-screw extrusion molding device, has the characteristics of wide application range for formed materials, constant extrusion speed, good extruded product quality and the like, and can be widely applied to the fields of thermal sensitive material mixing, plasticization and extrusion molding.
Description
Technical field
The utility model relates to the screw extrusion molding device that a kind of twin-screw becomes single screw rod, belongs to the plasticating extrusion field.
Background technology
Usually, the extruding-out process of temperature-sensitive material adopts single screw extrusion molding or conical double-screw extruding-out process.Reinforced batch turning phenomenon can occur in single screw extrusion molding process, make the scope of molding materials be subject to certain limitation, and the conical double-screw extruding-out process has solved in the reinforced batch turning problem in single screw extrusion molding, but at former, the component of extruding is laterally partly arranged, the both sides of abrasion extruder barrel, thus forming process safety affected.Simultaneously, the extruding zone material fluidity is unstable, causes the extruded velocity non-uniform phenomenon, and then affects the quality of moulded products.
The utility model content
The purpose of this utility model is for the batch turning phenomenon occurred in single screw extrusion molding, the technical problem that extruded velocity is inhomogeneous and quality of item is bad and forming process is safe to occurring in molding materials narrow application range and twin-screw extrusion moulding, the screw extrusion molding device that provides a kind of twin-screw to become single screw rod are provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of twin-screw of the present utility model becomes the screw extrusion molding device of single screw rod, comprising: drive system, long bolt, short screw, extrude cylindrical shell;
Long bolt and short screw are respectively the screw-rod structure of traditional single screw rod, and wherein, the length of short screw is 3/4～4/5 of long bolt length,
Extruder barrel is divided into twin-screw extrusion section and single Screw Extrusion section; Wherein the length of the length of twin-screw extrusion section and short screw is complementary, and the interior shape of twin-screw extrusion section is the interior shape of traditional parallel double-screw extruder machine barrel; The length of single Screw Extrusion section and the length difference of long and short screw rod are complementary, the interior shape that in single Screw Extrusion section main body, shape is traditional extruder cylinder of single screw extruder; In extruder barrel, the junction of twin-screw extrusion Duan Yudan Screw Extrusion section is by 30 °～35 ° conical surface transition;
Long bolt is connected with two output shafts of drive system respectively with short screw, and the thread segment of long bolt and short screw encapsulates by extruder barrel.
Beneficial effect
The screw extrusion molding device that a kind of twin-screw of the present utility model becomes single screw rod can effectively solve the problems such as the safety that adopts traditional extrusion molding apparatus to occur in the extrusion molding process, quality, be divided into twin-screw co-extrusion part and single Screw Extrusion part from function, combine the two advantage of single screw rod and twin-screw extrusion shaped device.Have the characteristics such as wide to the molding materials scope of application, that extruded velocity even, the extruded product quality is good, device of the present utility model can be widely used in mixing, plasticizing and the extrusion molding field of temperature-sensitive material.
The accompanying drawing explanation:
The structural representation that Fig. 1 is the utility model extrusion molding apparatus;
Fig. 2 is long bolt and the position view figure of short screw in extruder barrel in the utility model extrusion molding apparatus;
Wherein, 1-drive system; The 2-long bolt; The 3-short screw; 4-extrudes cylindrical shell.
The specific embodiment
Below in conjunction with drawings and Examples, content of the present utility model is further described.
Embodiment
A kind of twin-screw of the present utility model becomes the screw extrusion molding device of single screw rod, as shown in Figure 1, comprising: drive system 1, long bolt 2, short screw 3, extrude cylindrical shell 4;
Extruder barrel is divided into twin-screw extrusion section and single Screw Extrusion section; Wherein the length of the length of twin-screw extrusion section and short screw is complementary, and the interior shape of twin-screw extrusion section is the interior shape of traditional parallel double-screw extruder machine barrel; The length of single Screw Extrusion section and the length difference of long and short screw rod are complementary, the interior shape that in single Screw Extrusion section main body, shape is traditional extruder cylinder of single screw extruder; In extruder barrel, the junction of twin-screw extrusion Duan Yudan Screw Extrusion section is by 35 ° of conical surface transition;
Claims (1)
1. a twin-screw becomes the screw extrusion molding device of single screw rod, it is characterized in that: comprise drive system, long bolt, short screw, extrude cylindrical shell;
Long bolt and short screw are respectively the screw-rod structure of traditional single screw rod, and wherein, the length of short screw is 3/4～4/5 of long bolt length,
Extruder barrel is divided into twin-screw extrusion section and single Screw Extrusion section; Wherein the length of the length of twin-screw extrusion section and short screw is complementary, and the interior shape of twin-screw extrusion section is the interior shape of traditional parallel double-screw extruder machine barrel; The length of single Screw Extrusion section and the length difference of long and short screw rod are complementary, the interior shape that in single Screw Extrusion section main body, shape is traditional extruder cylinder of single screw extruder; In extruder barrel, the junction of twin-screw extrusion Duan Yudan Screw Extrusion section is by 30 °～35 ° conical surface transition;
Long bolt is connected with two output shafts of drive system respectively with short screw, and the thread segment of long bolt and short screw encapsulates by extruder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320430821XU CN203344294U (en) | 2013-07-19 | 2013-07-19 | Double-screw to single-screw changed spiral extrusion molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320430821XU CN203344294U (en) | 2013-07-19 | 2013-07-19 | Double-screw to single-screw changed spiral extrusion molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203344294U true CN203344294U (en) | 2013-12-18 |
Family
ID=49744226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320430821XU Expired - Fee Related CN203344294U (en) | 2013-07-19 | 2013-07-19 | Double-screw to single-screw changed spiral extrusion molding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203344294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395187A (en) * | 2013-07-19 | 2013-11-20 | 山西北方兴安化学工业有限公司 | Spiral extrusion forming device with double-screw and single-screw switching function |
-
2013
- 2013-07-19 CN CN201320430821XU patent/CN203344294U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395187A (en) * | 2013-07-19 | 2013-11-20 | 山西北方兴安化学工业有限公司 | Spiral extrusion forming device with double-screw and single-screw switching function |
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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: 20131218 Termination date: 20160719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |