CN101531054A - Extrusion device of conical twin-screw extruder special for polyolefine - Google Patents
Extrusion device of conical twin-screw extruder special for polyolefine Download PDFInfo
- Publication number
- CN101531054A CN101531054A CN200910031147A CN200910031147A CN101531054A CN 101531054 A CN101531054 A CN 101531054A CN 200910031147 A CN200910031147 A CN 200910031147A CN 200910031147 A CN200910031147 A CN 200910031147A CN 101531054 A CN101531054 A CN 101531054A
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- China
- Prior art keywords
- screw
- conical
- spiral shell
- shell rib
- extrusion device
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- 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.)
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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
- B29C48/56—Screws having grooves or cavities other than the thread or the channel
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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
- B29C48/41—Intermeshing counter-rotating screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an extrusion device of a conical twin-screw extruder special for polyolefine, which comprises a machine barrel; the machine barrel is provided with a pair of conical screws inside and is provided with a feed inlet; each conical screw is provided with three sections of screw flanks, namely a feeding section, a compression section, and a plastication and homogenization section; the position of the feed inlet corresponds to the feeding section on each conical screw; the screw flank length of the compression sections is 35 to 45 percent of the total length of all screw flanks on the conical screws; the screw flanks of whole compression sections are provided with a plurality of exhaust grooves, and exhaust grooves are also arranged from the compression section to the screw flank of the feeding section below the feed inlet; and one conical screw is connected with a main drive shaft in a distribution box, while the other conical screw is connected with a driven shaft in the distribution box. The extrusion device has the advantages that the extrusion device effectively increases pressure in the machine barrel, increases the effective length of compression, mixing and preplastication, can better performs mixing and plastication on a polyolefine material, can be used for professional processing of the polyolefine material, and has high yield and less energy consumption.
Description
Technical field
The invention belongs to the conical double screw extruder field, relate in particular to a kind of extrusion device of conical double screw extruder of the brand-new professional processing of polyolefins material of energy.
Background technology
Extrusion device in traditional conical double screw extruder comprises: machine barrel, in machine barrel, be provided with a pair of conical screw, on every conical screw, all be provided with feed zone, shunting section, compression section, choke section, exhaust section, plasticizing homogenizing zone totally six sections spiral shell ribs, machine barrel is provided with charging aperture and exhaust outlet, and the position correspondence of charging aperture the feed zone on the conical screw, the position of exhaust outlet faces the exhaust section on the conical screw, is connected with separately power transmission shaft respectively at an end of conical screw.Usually distinguish conical double screw extruder according to the size of maximum spiral shell rib on the screw rod and minimum spiral shell rib outside dimension, as maximum spiral shell rib external diameter is that 132 millimeters, minimum spiral shell rib external diameter are 65 millimeters 65/132 machine that is called, and maximum spiral shell rib external diameter is that 188 millimeters, minimum spiral shell rib external diameter are 92 millimeters 92/188 machine that is called.Therefore the extrusion device of above-mentioned traditional structure can only be used to specialty processing thermal sensitivity plastics to thermal sensitivity plastics-plastify well with mixing as polyvinyl chloride (be called for short PVC) material.But can not be used for the processing of polyolefins material, because traditional extrusion device can not plastify with mixing well to polyolefine material.
Summary of the invention
Technical problem to be solved by this invention is: the extrusion device that the conical double screw extruder special for polyolefine of the professional processing of polyolefins material of a kind of energy is provided.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: the extrusion device of conical double screw extruder special for polyolefine, comprise: machine barrel, in machine barrel, be provided with a pair of conical screw, machine barrel is provided with charging aperture, on described each conical screw, all be provided with feed zone, compression section and plasticizing homogenizing zone be totally three sections spiral shell ribs, the position correspondence of charging aperture the feed zone on the conical screw, wherein the spiral shell rib length of compression section be on the conical screw all spiral shell rib total lengths 35%～45%, and on the spiral shell rib of whole compression section, evenly be provided with some exhaust grooves, also be provided with exhaust groove on the spiral shell rib of that section feeding section from the compression section to the charging aperture below, wherein conical screw is connected with final drive shaft in the distributor box, being connected in another root conical screw and the distributor box from power transmission shaft, final drive shaft with from power transmission shaft by the transmission that is meshing with each other of a pair of angular wheel.
In order to solve the problems of the technologies described above better, further technical scheme of the present invention is: the helical pitch of described compression section spiral shell rib is 40～58 millimeters.
In order to solve the problems of the technologies described above better, further technical scheme of the present invention is: for maximum spiral shell rib external diameter is that 132 millimeters, minimum spiral shell rib external diameter are 65 millimeters conical double-screw, final drive shaft and be that 2 degree 11 minutes and 19 seconds are between 2 degree 20 minutes and 0 second from the angle α between the power transmission shaft; For maximum spiral shell rib external diameter is that 188 millimeters, minimum spiral shell rib external diameter are 92 millimeters conical double-screw, final drive shaft and be that 1 degree 52 minutes and 39 seconds is between 1 degree 63 minutes and 0 second from the angle α between the power transmission shaft.
Advantage of the present invention is: the extrusion device of said structure can effectively increase the pressure in the machine barrel, increase the effective length of compression, mixing and preplasticizing, can make the polyolefine material obtain mixing well and plasticizing, can be used for professional processing of polyolefins material, the output height, it is little to consume energy.
Description of drawings
Fig. 1 is the structural representation of the extrusion device of conical double screw extruder special for polyolefine of the present invention.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the structural representation of a conical screw wherein among Fig. 1.
Fig. 4 is an A-A direction structure schematic diagram among Fig. 3.
Fig. 5 is a B-B direction structure schematic diagram among Fig. 3.
Among the figure: 1, machine barrel, 11, charging aperture, 2, conical screws, 21, feed zone, 211, exhaust groove, 22, compression section, 221, exhaust groove, 23, the plasticizing homogenizing zone, 3, distributor box, 31, final drive shaft, 32, from power transmission shaft, 4, another root conical screw, 5, angular wheel.
The specific embodiment
Describe particular content of the present invention in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the extrusion device of conical double screw extruder special for polyolefine comprises: machine barrel 1, in machine barrel 1, be provided with a pair of conical screw, and machine barrel 1 is provided with charging aperture 11.As shown in Figure 3, all be provided with feed zone 21, compression section 22 and plasticizing homogenizing zone 23 totally three sections spiral shell ribs on described each conical screw, the helical pitch of compression section 22 spiral shell ribs is 40～58 millimeters.As shown in Figure 1 and Figure 2, the position correspondence of charging aperture 11 feed zone 21 on the conical screw 2, wherein the spiral shell rib length of compression section 22 be on the conical screw all spiral shell rib total lengths 35%～45%, and the spiral shell rib of whole compression section 22 is provided with some exhaust grooves 221---as shown in Figure 4, as Fig. 1, shown in Figure 5, also be provided with exhaust groove 211 on the spiral shell rib of that section feeding section 21 from compression section 22 to charging aperture 11 belows.As shown in Figure 2, wherein conical screw 2 is connected with final drive shaft 31 in the distributor box 3, being connected in another root conical screw 4 and the distributor box 3 from power transmission shaft 32, final drive shaft 31 with from power transmission shaft 32 by the transmission that is meshing with each other of a pair of angular wheel 5.For maximum spiral shell rib external diameter is that 132 millimeters, minimum spiral shell rib external diameter are 65 millimeters conical double-screw, final drive shaft 31 and be that 2 degree 11 minutes and 19 seconds are between 2 degree 20 minutes and 0 second from the angle α between the power transmission shaft 32; For maximum spiral shell rib external diameter is that 188 millimeters, minimum spiral shell rib external diameter are 92 millimeters conical double-screw, final drive shaft 31 and be that 1 degree 52 minutes and 39 seconds is between 1 degree 63 minutes and 0 second from the angle α between the power transmission shaft 32.
As shown in Figure 2, when the extrusion device of the conical double screw extruder special for polyolefine of said structure uses, rotate and wherein conical screw 2 rotations by motor drives final drive shaft 31, final drive shaft 31 drives from power transmission shaft 32 and another root conical screw 4 by a pair of angular wheel 5 and rotates, thereby the polyolefine material that is entered by charging aperture 11 is processed.As shown in Figure 1, the gas that produces in process can turn back to charging aperture 11 and go out to discharge from exhaust groove 221 and exhaust groove 211, this extrusion device has effectively increased the pressure in the machine barrel 1, increased the effective length of conical screw, can make the polyolefine material obtain mixing well and plasticizing material compression, mixing and preplasticizing.
Claims (3)
1, the extrusion device of conical double screw extruder special for polyolefine, comprise: machine barrel (1), in machine barrel (1), be provided with a pair of conical screw, machine barrel (1) is provided with charging aperture (11), it is characterized in that: on described each conical screw, all be provided with feed zone (21), compression section (22) and plasticizing homogenizing zone (23) be totally three sections spiral shell ribs, the position correspondence of charging aperture (11) the feed zone (21) on the conical screw, wherein the spiral shell rib length of compression section (22) be on the conical screw all spiral shell rib total lengths 35%～45%, and the spiral shell rib of whole compression section (22) is provided with some exhaust grooves (221), also be provided with exhaust groove (211) on the spiral shell rib of that section feeding section (21) from compression section (22) to charging aperture (11) below, wherein a conical screw (2) is connected with final drive shaft (31) in the distributor box (3), being connected in another root conical screw (4) and the distributor box (3) from power transmission shaft (32), final drive shaft (31) with from power transmission shaft (32) by a pair of angular wheel (5) transmission that is meshing with each other.
2, according to the extrusion device of the described conical double screw extruder special for polyolefine of claim 1, it is characterized in that: the helical pitch of described compression section (22) spiral shell rib is 40～58 millimeters.
3, according to the extrusion device of claim 1 or 2 described conical double screw extruder special for polyolefine, it is characterized in that: for maximum spiral shell rib external diameter is that 132 millimeters, minimum spiral shell rib external diameter are 65 millimeters conical double-screw, final drive shaft (31) and be that 2 degree 11 minutes and 19 seconds are between 2 degree 20 minutes and 0 second from the angle α between the power transmission shaft (32); For maximum spiral shell rib external diameter is that 188 millimeters, minimum spiral shell rib external diameter are 92 millimeters conical double-screw, final drive shaft (31) and be that 1 degree 52 minutes and 39 seconds is between 1 degree 63 minutes and 0 second from the angle α between the power transmission shaft (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100311476A CN101531054B (en) | 2009-04-28 | 2009-04-28 | Extrusion device of conical twin-screw extruder special for polyolefine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100311476A CN101531054B (en) | 2009-04-28 | 2009-04-28 | Extrusion device of conical twin-screw extruder special for polyolefine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101531054A true CN101531054A (en) | 2009-09-16 |
| CN101531054B CN101531054B (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100311476A Expired - Fee Related CN101531054B (en) | 2009-04-28 | 2009-04-28 | Extrusion device of conical twin-screw extruder special for polyolefine |
Country Status (1)
| Country | Link |
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| CN (1) | CN101531054B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587949A (en) * | 2019-10-10 | 2019-12-20 | 安徽皖维皕盛新材料有限责任公司 | Method for improving output of PVB film extruder |
| US10555547B2 (en) | 2017-02-16 | 2020-02-11 | Wenger Manufacturing Inc. | Meat dewatering assembly |
| CN111730845A (en) * | 2019-03-25 | 2020-10-02 | 上海贝阳塑料机械科技有限公司 | Special screw rod of PVC thermal contraction inflation film manufacturing machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047126C (en) * | 1994-07-18 | 1999-12-08 | 北京化工大学 | Extruding shaper for superhigh molecular weight polymer |
| CN201446682U (en) * | 2009-04-28 | 2010-05-05 | 张家港市杰达机械制造有限公司 | Squeezing device of polyolefin special-purpose conical double screw extrusion machine |
-
2009
- 2009-04-28 CN CN2009100311476A patent/CN101531054B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10555547B2 (en) | 2017-02-16 | 2020-02-11 | Wenger Manufacturing Inc. | Meat dewatering assembly |
| US10624369B2 (en) | 2017-02-16 | 2020-04-21 | Wenger Manufacturing Inc. | Meat dewatering assembly |
| CN111730845A (en) * | 2019-03-25 | 2020-10-02 | 上海贝阳塑料机械科技有限公司 | Special screw rod of PVC thermal contraction inflation film manufacturing machine |
| CN110587949A (en) * | 2019-10-10 | 2019-12-20 | 安徽皖维皕盛新材料有限责任公司 | Method for improving output of PVB film extruder |
| CN110587949B (en) * | 2019-10-10 | 2022-03-08 | 安徽皖维皕盛新材料有限责任公司 | Method for improving output of PVB film extruder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101531054B (en) | 2012-07-04 |
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Granted publication date: 20120704 Termination date: 20140428 |