CN104608354A - Screen exchange device of plastic extruder - Google Patents
Screen exchange device of plastic extruder Download PDFInfo
- Publication number
- CN104608354A CN104608354A CN201510049142.1A CN201510049142A CN104608354A CN 104608354 A CN104608354 A CN 104608354A CN 201510049142 A CN201510049142 A CN 201510049142A CN 104608354 A CN104608354 A CN 104608354A
- Authority
- CN
- China
- Prior art keywords
- machine barrel
- plastic extruder
- drill holder
- screen pack
- centre bore
- 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.)
- Pending
Links
- 229920003023 plastic Polymers 0.000 title claims description 23
- 239000004033 plastic Substances 0.000 title claims description 23
- 238000003825 pressing Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000010425 asbestos Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000002994 raw material Substances 0.000 description 9
- 238000001125 extrusion Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
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
- B29C48/395—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
- B29C48/50—Details of extruders
- B29C48/69—Filters or screens for the moulding material
- B29C48/693—Substantially flat filters mounted at the end of an extruder screw perpendicular to the feed axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a screen exchange device of a plastic extruder, relating to the technical field of manufacturing for plastic extruders. The screen exchange device comprises a machine barrel and a filter screen plate, wherein a reducing sleeve provided with the filter screen plate at the front end is installed between the machine barrel and a die head through a connection device; the reducing sleeve is provided with a horn-shaped reducing central hole; the large end of the reducing central hole is located at one side of the machine barrel; the small end of the reducing central hole is communicated with an inlet of the filter screen plate. Compared with the prior art, the screen exchange device disclosed by the invention is capable of solving the problems of poor product quality and high cost caused by the reason that residues easily remain on the filter screen plate of the existing plastic extruder.
Description
Technical field
The present invention relates to plastic extruder manufacturing technology field, especially a kind of reducing net exchanging device for double-screw plastic extrusion machine.
Background technology
Double-screw plastic extrusion machine net exchanging device is one of important parts of double-screw plastic extrusion machine net exchanging device, its operation principle be various plastic raw materials is fully mixed be input to plastic extruder machine barrel on carry out heating and melting, the modified plastics of melting is configured as strip by the die head of plastic extruder by the raw material after melting, and cutting off for follow-up equipment becomes particulate material.The plastic extruder of existing a kind of twin-screw, this plastic extruder includes the machine barrel that multiple cylindrical shell connected successively is formed, and is equipped with screen pack at nose.In use there are the following problems for this plastic extruder: along with the continuity found time; foreign material on screen pack build up; cause barrel pressure to raise, when exceeding certain pressure, screen pack is broken up, lost efficacy, and must shut down replacing screen pack; there is dead angle in the nose of existing screen pack and extruder; easily produce too much buildup in use procedure, normal raw material easily decomposes, and filter screen replacement is frequent; product quality is poor, consumes many costs high.
Summary of the invention
Problem solved by the invention is to provide a kind of plastic extruder net exchanging device, easily has clout to remain cause the problem that product quality is poor and cost is high with the screen pack solving existing plastic extruder.
In order to solve the problem, the technical solution used in the present invention is: this plastic extruder net exchanging device includes machine barrel and screen pack, between described machine barrel and die head, by jockey, the drill holder that front end is provided with described screen pack is housed, described drill holder has flaring reducing centre bore, one end that described reducing centre bore is large is positioned at machine barrel side, and one end that described reducing centre bore is little is connected with the import of described screen pack.
In above-mentioned plastic extruder Net Changer Technology scheme, technical scheme can also be more specifically: described jockey comprises the loose flange being contained in described machine barrel front end by screw thread, described drill holder is fixed on the front end of described machine barrel by pressing plate, between described machine barrel and described pressing plate, be provided with asbestos pad; Connector is crimped with by positioning spigot in the front end of described drill holder, described connector has flange portion and the connecting portion being provided with the centre bore be connected with described die head, and described connector was fixedly connected with the bolt of the flange portion of described connector by installing described loose flange successively.
Further, described drill holder outer wall is provided with heating jacket.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect: owing to drill holder endoporus to be arranged to the structure of bellmouth orifice, screen pack is located at drill holder front end to dock with bellmouth orifice small end, when extrusion plastic raw material, raw material enters screen pack along the flaring reducing centre bore of reducing, and circumference does not produce buildup, and raw material not easily decomposes, reduce draping number of times and time, product consumption reduces, and effectively can improve product quality, can reduce costs simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Plastic extruder net exchanging device as shown in Figure 1 includes machine barrel 1 and is contained in die head (not shown) and the screen pack 4 of machine barrel 1 front end, between machine barrel 1 and die head, by jockey, the drill holder 3 that front end is embedded with screen pack 4 is housed, screen pack 4 is inlaid on the counterbore of drill holder 3 front end; Drill holder 3 has flaring reducing centre bore, one end that reducing centre bore is large is positioned at machine barrel 1 side, one end that reducing centre bore is little is connected with the import of screen pack 4, drill holder 3 is fixed on the front end of machine barrel 1 by pressing plate 7, the front end of machine barrel 1 has positioning spigot, be provided with positioning boss at drill holder 3 outer wall, drill holder 3 is crimped on the positioning spigot of machine barrel 1 front end by the stepped hole in it by pressing plate 7; Jockey comprises the loose flange 9 being contained in machine barrel 1 front end by screw thread, and asbestos pad 8 is housed between machine barrel 1 and pressing plate 7; Be crimped with connector 4 in the front end of drill holder 3 by positioning spigot, connector 4 has flange portion and the connecting portion having the centre bore be connected with die head, and connector 4 was fixedly connected with the bolt of the flange portion of connector 4 by installing loose flange 9 successively; Drill holder 3 outer wall is provided with heating jacket 5.
During work, when extrusion plastic raw material, raw material enters screen pack along the flaring reducing centre bore of reducing, and circumference does not produce buildup, and raw material not easily decomposes, and reduces draping number of times and time, and product consumption reduces, and effectively can improve product quality.
Claims (3)
1. a plastic extruder net exchanging device, include machine barrel (1) and screen pack (4), it is characterized in that: between described machine barrel (1) and die head, by jockey, the drill holder (3) that front end is provided with described screen pack (4) is housed, described drill holder (3) has flaring reducing centre bore, one end that described reducing centre bore is large is positioned at machine barrel (1) side, and one end that described reducing centre bore is little is connected with the import of described screen pack (4).
2. plastic extruder net exchanging device according to claim 1, it is characterized in that: described jockey comprises the loose flange (9) being contained in described machine barrel (1) front end by screw thread, described drill holder (3) is fixed on the front end of described machine barrel (1) by pressing plate (7), is provided with asbestos pad (8) between described machine barrel (1) and described pressing plate (7); Connector (4) is crimped with by positioning spigot in the front end of described drill holder (3), described connector (4) has flange portion and the connecting portion being provided with the centre bore be connected with described die head, and described connector (4) was fixedly connected with the bolt of the flange portion of described connector (4) by installing described loose flange (9) successively.
3. the plastic extruder net exchanging device according to claim 1 or 2, is characterized in that: on described drill holder (3) outer wall, be provided with heating jacket (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510049142.1A CN104608354A (en) | 2015-01-30 | 2015-01-30 | Screen exchange device of plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510049142.1A CN104608354A (en) | 2015-01-30 | 2015-01-30 | Screen exchange device of plastic extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104608354A true CN104608354A (en) | 2015-05-13 |
Family
ID=53143112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510049142.1A Pending CN104608354A (en) | 2015-01-30 | 2015-01-30 | Screen exchange device of plastic extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104608354A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710985A (en) * | 2016-03-13 | 2016-06-29 | 宁波绿华橡塑机械工贸有限公司 | Film crushing plasticator |
| CN105729649A (en) * | 2016-03-13 | 2016-07-06 | 宁波绿华橡塑机械工贸有限公司 | Crushed film regeneration plasticator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4177857A (en) * | 1976-09-13 | 1979-12-11 | Regie Nationale Des Usines Renault | Blow nozzle, notably for foundry cores |
| US5601854A (en) * | 1993-12-17 | 1997-02-11 | Zimmer Aktiengesellschaft | Spinning head with filter cartridge |
| CN102259417A (en) * | 2011-07-08 | 2011-11-30 | 新乐华宝塑料机械有限公司 | Reducing net changing device for PVC (Poly Vinyl Chloride) plastic extruder |
| CN202439208U (en) * | 2012-02-24 | 2012-09-19 | 沅江市福利渔业用品有限公司 | Filtering device of plastic extruding machine |
| CN203739206U (en) * | 2014-02-28 | 2014-07-30 | 柳州市海达新型材料科技有限公司 | Die head of plastic extruder |
-
2015
- 2015-01-30 CN CN201510049142.1A patent/CN104608354A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4177857A (en) * | 1976-09-13 | 1979-12-11 | Regie Nationale Des Usines Renault | Blow nozzle, notably for foundry cores |
| US5601854A (en) * | 1993-12-17 | 1997-02-11 | Zimmer Aktiengesellschaft | Spinning head with filter cartridge |
| CN102259417A (en) * | 2011-07-08 | 2011-11-30 | 新乐华宝塑料机械有限公司 | Reducing net changing device for PVC (Poly Vinyl Chloride) plastic extruder |
| CN202439208U (en) * | 2012-02-24 | 2012-09-19 | 沅江市福利渔业用品有限公司 | Filtering device of plastic extruding machine |
| CN203739206U (en) * | 2014-02-28 | 2014-07-30 | 柳州市海达新型材料科技有限公司 | Die head of plastic extruder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710985A (en) * | 2016-03-13 | 2016-06-29 | 宁波绿华橡塑机械工贸有限公司 | Film crushing plasticator |
| CN105729649A (en) * | 2016-03-13 | 2016-07-06 | 宁波绿华橡塑机械工贸有限公司 | Crushed film regeneration plasticator |
| CN105729649B (en) * | 2016-03-13 | 2019-01-11 | 宁波绿华橡塑机械工贸有限公司 | Broken film regenerates Plasticator |
| CN105710985B (en) * | 2016-03-13 | 2019-01-15 | 宁波绿华橡塑机械工贸有限公司 | Broken film Plasticator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150513 |
|
| WD01 | Invention patent application deemed withdrawn after publication |