CN203157103U - Double-screw extruder - Google Patents
Double-screw extruder Download PDFInfo
- Publication number
- CN203157103U CN203157103U CN2013200966681U CN201320096668U CN203157103U CN 203157103 U CN203157103 U CN 203157103U CN 2013200966681 U CN2013200966681 U CN 2013200966681U CN 201320096668 U CN201320096668 U CN 201320096668U CN 203157103 U CN203157103 U CN 203157103U
- Authority
- CN
- China
- Prior art keywords
- machine barrel
- screw extruder
- vavuum pump
- double
- double screw
- 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
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
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
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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
- B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a double-screw extruder. The double-screw extruder comprises a driving device, a distribution box, a reduction gearbox, a machine barrel, an air exhausting device, a hopper and a rack, wherein the driving device, the distribution box, the reduction gearbox and the machine barrel are all arranged on the rack; the distribution box comprises a drive gear, a middle gear and a driven gear, the machine barrel is internally provided with a long screw and a short screw, and the long screw and the short screw are respectively matched with the drive gear and the driven gear; and the air exhausting device comprises an air exhausting pipe and a vacuum pump unit, one end of the air exhausting pipe is connected with the machine barrel in a sealing manner, and the other end of the air exhausting pipe is connected with the vacuum pump unit in the sealing manner. The extruder blends the dual advantages of the good plastifying property of the double-screw extruder and the large extrusion pressure of a single-screw extruder, two vacuum pumps are connected to the machine barrel in the sealing manner, when one of the vacuum pumps needs to be maintained, the other vacuum pump can unceasingly operate, and the productive schedule is not influenced.
Description
Technical field
The utility model relates to a kind of double screw extruder, relates in particular to a kind of parallel double screw extruder in the same way, belongs to plastics machinery and makes the field.
Background technology
Double screw extruder is widely used in the filling, enhancing of macromolecular materials such as general-purpose plastics, engineering plastics, thermoplastic materials, rubber, toughness reinforcing etc. blending and modifying, and manufacture field such as special fibre, special adhesive.At present, screw extruder can be divided into single screw extrusion machine, double screw extruder and multi-screw extruder according to the quantity of screw rod, existing double screw extruder mostly is two double screw extruders that screw rod is isometric on the market, though the isometric double screw extruder of screw rod has the good advantage of plasticity, but its pressure transient, and single screw extrusion machine has the stable advantage of extrusion pressure, but its plasticizing capacity is bad.
In the production process of plastic film, powder is packed in the hopper, pass through screw extrusion molding, but in the process of extruding, because the existence of the little molecule of melt and moisture, make to have aqueous vapor in the machine barrel, usually the method for removing aqueous vapor is to increase a vavuum pump at machine barrel aqueous vapor is taken away, but but need periodic maintenance, and equipment can remain in operation just after having only the maintenance of working as to finish, and has brought inconvenience to production.
The utility model content
Technical problem to be solved in the utility model provides a kind of double screw extruder, be provided with long bolt and short screw in this extruder barrel, merged good plasticizing capacity and the big double dominant of single screw extrusion machine extrusion pressure of double screw extruder, be sealedly connected with two vavuum pumps on the machine barrel, when one of them need be safeguarded, another can work on, and can not delay the progress of production.
In order to solve existing technical problem, the technical solution adopted in the utility model is: a kind of double screw extruder, comprise drive unit, distributor box, reduction box, machine barrel, exhaust apparatus, hopper and frame, described drive unit, distributor box, reduction box and machine barrel are installed on the frame, one end of described reduction box is connected with drive unit, the two ends of described distributor box are connected with machine barrel with reduction box respectively, described hopper is arranged on the top of distributor box and machine barrel junction, described distributor box comprises driving gear, idler gear and driven gear, idler gear is arranged between driving gear and the driven gear and with it and is meshed, be provided with long bolt and short screw in the machine barrel, long bolt and short screw match with described driving gear and driven gear respectively, described exhaust apparatus comprises blast pipe and vavuum pump group, one end and the described machine barrel of this blast pipe are tightly connected, and the other end of blast pipe and vavuum pump group are tightly connected.
Above-mentioned a kind of double screw extruder, described blast pipe also has exhaust manifold, and described vavuum pump group comprises first vavuum pump and second vavuum pump, and first vavuum pump is connected with blast pipe, and second vavuum pump is connected with exhaust manifold.
Above-mentioned a kind of double screw extruder, described drive unit are drive motors.
Above-mentioned a kind of double screw extruder, described reduction box is connected with described drive motors by shaft coupling.
Above-mentioned a kind of double screw extruder, described long bolt and short screw are taper.
Above-mentioned a kind of double screw extruder, described long bolt and short screw are parallel to each other and rotate in the same way.
The beneficial effects of the utility model are: be provided with long bolt and short screw in this extruder barrel, merged good plasticizing capacity and the big double dominant of single screw extrusion machine extrusion pressure of double screw extruder, be sealedly connected with two vavuum pumps on the machine barrel, when one of them need be safeguarded, another can work on, and can not delay the progress of production.
Description of drawings
Fig. 1 is structural representation of the present utility model
The specific embodiment
Further understand and understanding for making architectural feature of the present utility model and the effect reached had, cooperate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows:
As shown in Figure 1, a kind of double screw extruder, comprise drive unit 1, distributor box 2, reduction box 3, machine barrel 4, exhaust apparatus 5, hopper 6 and frame 7, drive unit 1, distributor box 2, reduction box 3 and machine barrel 4 are installed on the frame 7, one end of reduction box 3 is connected with drive unit 1, the two ends of distributor box 2 are connected with machine barrel 4 with reduction box 3 respectively, hopper 6 is arranged on the top of distributor box 2 and machine barrel 4 junctions, drive unit 1 is preferably drive motors, reduction box 3 is connected with drive motors by shaft coupling 8, as improvement of the present utility model, distributor box 2 comprises that described distributor box comprises driving gear, idler gear and driven gear, idler gear is arranged between driving gear and the driven gear and with it and is meshed, be provided with long bolt 41 and short screw 42 in the machine barrel 4, long bolt 41 and short screw 42 match with driving gear and driven gear respectively, driving long bolt 41 by driving gear rotates, driven gear drives short screw 42 and rotates, long bolt 41 and short screw 42 are taper, and form the parallel double-screw structure.
Exhaust apparatus 5 comprises blast pipe 51 and vavuum pump group, and an end and the machine barrel 4 of this blast pipe 51 are tightly connected, and the other end of blast pipe 51 and vavuum pump group are tightly connected.
Blast pipe 51 also has exhaust 52 manifolds, the vavuum pump group comprises first vavuum pump 53 and second vavuum pump 54, first vavuum pump 53 is connected with blast pipe 51, second vavuum pump 54 is connected with exhaust manifold 52, when one of them vavuum pump need be safeguarded, another can work on, and can not delay the progress of production.
Double screw extruder in the present embodiment in use, drive motors is started working, material enters in the machine barrel 4 from hopper 6, drive motors rotates by the driving gear that reduction box 3 drives in the distributor box 2, because idler gear is meshed with driving gear, drives driven gear by idler gear and turn round, at this moment, driving gear and driven tooth crop rotation are rotated in the same way, thereby drive long bolt 41 and the rotation in the same way of short screw 42 dos.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and the specification is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in the claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (6)
1. double screw extruder, comprise drive unit, distributor box, reduction box, machine barrel, exhaust apparatus, hopper and frame, described drive unit, distributor box, reduction box and machine barrel are installed on the frame, one end of described reduction box is connected with drive unit, the two ends of described distributor box are connected with machine barrel with reduction box respectively, described hopper is arranged on the top of distributor box and machine barrel junction, it is characterized in that, described distributor box comprises driving gear, idler gear and driven gear, idler gear is arranged between driving gear and the driven gear and with it and is meshed, be provided with long bolt and short screw in the machine barrel, long bolt and short screw match with described driving gear and driven gear respectively, described exhaust apparatus comprises blast pipe and vavuum pump group, one end and the described machine barrel of this blast pipe are tightly connected, and the other end of blast pipe and vavuum pump group are tightly connected.
2. a kind of double screw extruder according to claim 1, it is characterized in that described blast pipe also has exhaust manifold, described vavuum pump group comprises first vavuum pump and second vavuum pump, first vavuum pump is connected with blast pipe, and second vavuum pump is connected with exhaust manifold.
3. a kind of double screw extruder according to claim 1 is characterized in that, described drive unit is drive motors.
4. according to claim 1 or 3 described a kind of double screw extruders, it is characterized in that described reduction box is connected with described drive motors by shaft coupling.
5. a kind of double screw extruder according to claim 1 is characterized in that, described long bolt and short screw are taper.
6. a kind of double screw extruder according to claim 5 is characterized in that, described long bolt and short screw are parallel to each other and rotate in the same way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200966681U CN203157103U (en) | 2013-03-01 | 2013-03-01 | Double-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200966681U CN203157103U (en) | 2013-03-01 | 2013-03-01 | Double-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203157103U true CN203157103U (en) | 2013-08-28 |
Family
ID=49018321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200966681U Expired - Fee Related CN203157103U (en) | 2013-03-01 | 2013-03-01 | Double-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203157103U (en) |
-
2013
- 2013-03-01 CN CN2013200966681U patent/CN203157103U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20170301 |