CN102259417A - Reducing net changing device for PVC (Poly Vinyl Chloride) plastic extruder - Google Patents

Reducing net changing device for PVC (Poly Vinyl Chloride) plastic extruder Download PDF

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Publication number
CN102259417A
CN102259417A CN2011101908354A CN201110190835A CN102259417A CN 102259417 A CN102259417 A CN 102259417A CN 2011101908354 A CN2011101908354 A CN 2011101908354A CN 201110190835 A CN201110190835 A CN 201110190835A CN 102259417 A CN102259417 A CN 102259417A
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CN
China
Prior art keywords
reducing ring
reducing
diameter
trumpet
shaped
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Application number
CN2011101908354A
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Chinese (zh)
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CN102259417B (en
Inventor
马国良
张军星
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XINLE HUABAO PLASTIC PRODUCTS CO., LTD.
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XINLE HUABAO PLASTIC MACHINE Co Ltd
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Priority to CN2011101908354A priority Critical patent/CN102259417B/en
Publication of CN102259417A publication Critical patent/CN102259417A/en
Application granted granted Critical
Publication of CN102259417B publication Critical patent/CN102259417B/en
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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
    • B29C48/395—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
    • B29C48/397—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 a single screw

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a reducing net changing device for a PVC (Poly Vinyl Chloride) plastic extruder, comprising a net changing flange, a reducing ring, a filtering meshed plate, a connector and a heating device, wherein the reducing ring is in the annular structure in which a trumpet-shaped through hole is formed; the diameter of the trumpet-shaped through hole is gradually reduced from left to right; the diameter of the left end of the trumpet-shaped through hole is equal to the inner diameter of the right end of an extruder barrel; and the diameter of the right end of the trumpet-shaped through hole is equal to the diameter of the inner bore of the left end of the connector. The reducing net changing device has the advantages that the inner bore of the reducing ring is set to be the trumpet-shaped structure with a big left part and a small right part; and the filtering meshed plate is nested into the counter bore of the right end of the reducing ring and is in butt joint with the right end of the trumpet-shaped inner bore. When plastic raw materials are extruded, the raw materials enter the filtering meshed plate via the trumpet-shaped reducing inner bore, circumstance does not generate dead material, raw materials have small possibility of decomposing, the number of times and time for changing the net are reduced, product consumption is reduced, and product quality can be effectively improved.

Description

A kind of PVC plastic extruder reducing net exchanging device
Technical field
The present invention relates to a kind of PVC plastic extruder corollary apparatus, particularly a kind of PVC plastic extruder reducing net exchanging device.
Background technology
In the plastic extruder course of work, plastic melt will produce in the melt and decompose residual thing through plastifying, being heated, and add impurities in raw materials, if do not remove, will cause runner obstruction, goods defective and even shutdown stopping production to occur.For leaching foreign material; the machine barrel end of present plastic extruder is equipped with screen pack; but along with the continuity that finds time; foreign material on the screen pack build up; cause head pressure raise, flow down fall, when surpassing certain pressure; screen pack will be broken up, be lost efficacy; must shut down and change screen pack; there is the dead angle in the machine barrel end of existing screen pack and extruder; be easy to generate too much dead material in the use, normal raw material decomposes easily, and screen pack is changed frequent; product quality is poor, consumes many costs height.
Summary of the invention
Technical problem to be solved by this invention provides a kind of PVC plastic extruder reducing net exchanging device, and the screen pack circumference does not produce dead material when operate as normal, improves product quality.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of PVC plastic extruder reducing net exchanging device comprises draping flange, reducing ring, screen pack, connector and heater; Described reducing ring and reducing ring left side fixedly connected with the machine barrel of PVC plastic extruder docks with the sealing of machine barrel right side by means of the draping flange; Evenly be provided with at least four studdles on the described machine barrel end flange circumference; Described draping flange is fixedly connected on described studdle end and its left side is parallel with the machine barrel right side; Described connector is that vertical section is "T"-shaped hollow member, and its left end is connected with described draping flange middle part through hole whorl; Described connector left side is provided with the counterbore that diameter equates with reducing ring external diameter; Described reducing ring right side is provided with the counterbore that axis overlaps with reducing loopback shaft axis; Described screen pack be nested in the counterbore of described reducing ring right-hand member and the thickness of described screen pack greater than the counterbore degree of depth certain size of described reducing ring right-hand member; The circulus that described reducing ring is established horn-like through hole in being, described horn-like through-hole diameter reduces from left to right gradually, and its left end diameter equals machine barrel right-hand member internal diameter, and its right-hand member diameter equals connector left end diameter of bore.
Described reducing ring outer wall is provided with heater.
Adopt the beneficial effect that technique scheme produced to be: reducing ring endoporus is arranged to horn-like structure left large and right small, screen pack is nested in the counterbore of reducing ring right-hand member and and docks with horn-like endoporus right-hand member sealing, raw material enters screen pack along the horn-like endoporus of reducing in the extrusion plastic raw material, circumference does not produce dead material, raw material is difficult for decomposing, reduce draping number of times and time, product consumption reduces, and can effectively improve product quality.
Description of drawings
Fig. 1 is the complete section structural representation of front view of the present invention.
In the accompanying drawings: 1, draping flange; 2, reducing ring; 3, screen pack; 4, connector; 5, heater; 6, machine barrel.
Further the present invention is described in detail below in conjunction with accompanying drawing.
The specific embodiment
A kind of PVC plastic extruder reducing net exchanging device as shown in Figure 1 comprises draping flange 1, reducing ring 2, screen pack 3, connector 4 and heater 5; Described reducing ring 2 fixedly connected and reducing ring 2 left sides docks with the sealing of machine barrel 6 right sides by means of the machine barrel 6 of draping flange and PVC plastic extruder; Evenly be provided with at least four studdles on the described machine barrel 6 end flange circumference; Described draping flange 1 is fixedly connected on described studdle end and its left side is parallel with machine barrel 6 right sides; Described connector 4 is that vertical section is "T"-shaped hollow member, and its left end is connected with described draping flange 1 middle part through hole whorl; Described connector 4 left sides are provided with the counterbore that diameter equates with reducing ring 2 external diameters; Described reducing ring 2 right sides are provided with the counterbore that axis overlaps with reducing ring 2 axiss of rotation; Described screen pack 3 be nested in the counterbore of described reducing ring 2 right-hand members and the thickness of described screen pack 3 greater than the counterbore degree of depth certain size of described reducing ring 2 right-hand members; The circulus that described reducing ring 2 is established horn-like through hole in being, described horn-like through-hole diameter reduces from left to right gradually, and its left end diameter equals machine barrel 6 right-hand member internal diameters, and its right-hand member diameter equals connector 4 left end diameter of bores.
Described reducing ring 2 outer walls are provided with heater 5.
Reducing ring endoporus is arranged to horn-like structure left large and right small, screen pack is nested in the counterbore of reducing ring right-hand member and and docks with horn-like endoporus right-hand member, raw material enters screen pack along the horn-like endoporus of reducing in the extrusion plastic raw material, circumference does not produce dead material, raw material is difficult for decomposing, reduce draping number of times and time, product consumption reduces, and can effectively improve product quality.

Claims (2)

1. a PVC plastic extruder reducing net exchanging device is characterized in that: comprise draping flange (1), reducing ring (2), screen pack (3), connector (4) and heater (5); Described reducing ring (2) and reducing ring (2) left side fixedly connected with the machine barrel (6) of PVC plastic extruder docks with the sealing of machine barrel (6) right side by means of flange ring; Evenly be provided with at least four studdles on the circumference of described machine barrel (6) end; Described draping flange (1) is fixedly connected on described studdle end and its left side is parallel with machine barrel (6) right side; Described connector (4) is that vertical section is "T"-shaped hollow member, and its left end is connected with described draping flange (1) middle part through hole whorl; Described connector (4) left side is provided with the counterbore that diameter equates with reducing ring (2) external diameter; Described reducing ring (2) right side is provided with the counterbore that axis overlaps with reducing ring (2) axis of rotation; Described screen pack (3) is nested in the counterbore of described reducing ring (2) right-hand member and the thickness of described screen pack (3) equals the counterbore degree of depth of described reducing ring (2) right-hand member; The circulus that described reducing ring (2) is established horn-like through hole in being, described horn-like through-hole diameter reduces from left to right gradually, and its left end diameter equals machine barrel (6) right-hand member internal diameter, and its right-hand member diameter equals connector (4) left end diameter of bore.
2. a kind of PVC plastic extruder reducing net exchanging device according to claim 1, it is characterized in that: described reducing ring (2) outer wall is provided with heater (5).
CN2011101908354A 2011-07-08 2011-07-08 Reducing net changing device for PVC (Poly Vinyl Chloride) plastic extruder Active CN102259417B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101908354A CN102259417B (en) 2011-07-08 2011-07-08 Reducing net changing device for PVC (Poly Vinyl Chloride) plastic extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101908354A CN102259417B (en) 2011-07-08 2011-07-08 Reducing net changing device for PVC (Poly Vinyl Chloride) plastic extruder

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CN102259417A true CN102259417A (en) 2011-11-30
CN102259417B CN102259417B (en) 2013-12-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104608354A (en) * 2015-01-30 2015-05-13 柳州市颖航汽配有限公司 Screen exchange device of plastic extruder
CN105252742A (en) * 2015-08-10 2016-01-20 佛山市奔浩塑料机械有限公司 Automatic non-net filtrating and slagging device for high polymer materials
CN105773945A (en) * 2016-04-26 2016-07-20 江苏荆溪环保设备有限公司 Corundum tube-type film extrusion device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876545A (en) * 1972-09-01 1975-04-08 Concorde Fibers Filter changing device for extrusion machines
JPS60262622A (en) * 1984-06-12 1985-12-26 Mitsubishi Heavy Ind Ltd Extruder
CN2058879U (en) * 1989-11-04 1990-07-04 北京化工学院 Hydraulic two-working-position filting converting device
CN2065544U (en) * 1989-10-21 1990-11-14 夏培根 extruder filter
CN2066803U (en) * 1989-11-04 1990-12-05 北京化工学院 Lever two working position filteing screen changing device
CN2448544Y (en) * 2000-11-17 2001-09-19 韩基政 Quick net changing apparatus for plastics extruder
JP2005125184A (en) * 2003-10-22 2005-05-19 Gpc Tsuchiya:Kk Screen changer for fluid
JP2005289024A (en) * 2004-04-05 2005-10-20 Akira Shimizu Screen replacing device
CN201505995U (en) * 2009-09-23 2010-06-16 南京诚盟机械有限公司 Wide flat-head strip-pulling machine head

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3876545A (en) * 1972-09-01 1975-04-08 Concorde Fibers Filter changing device for extrusion machines
JPS60262622A (en) * 1984-06-12 1985-12-26 Mitsubishi Heavy Ind Ltd Extruder
CN2065544U (en) * 1989-10-21 1990-11-14 夏培根 extruder filter
CN2058879U (en) * 1989-11-04 1990-07-04 北京化工学院 Hydraulic two-working-position filting converting device
CN2066803U (en) * 1989-11-04 1990-12-05 北京化工学院 Lever two working position filteing screen changing device
CN2448544Y (en) * 2000-11-17 2001-09-19 韩基政 Quick net changing apparatus for plastics extruder
JP2005125184A (en) * 2003-10-22 2005-05-19 Gpc Tsuchiya:Kk Screen changer for fluid
JP2005289024A (en) * 2004-04-05 2005-10-20 Akira Shimizu Screen replacing device
CN201505995U (en) * 2009-09-23 2010-06-16 南京诚盟机械有限公司 Wide flat-head strip-pulling machine head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104608354A (en) * 2015-01-30 2015-05-13 柳州市颖航汽配有限公司 Screen exchange device of plastic extruder
CN105252742A (en) * 2015-08-10 2016-01-20 佛山市奔浩塑料机械有限公司 Automatic non-net filtrating and slagging device for high polymer materials
CN105252742B (en) * 2015-08-10 2017-10-24 佛山市奔浩塑料机械有限公司 High polymer material is without net filtration automatic slag discharge device
CN105773945A (en) * 2016-04-26 2016-07-20 江苏荆溪环保设备有限公司 Corundum tube-type film extrusion device

Also Published As

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Effective date of registration: 20160421

Address after: Xinle City, Hebei Province, 050700 South Road No. 210

Patentee after: XINLE HUABAO PLASTIC PRODUCTS CO., LTD.

Address before: The South Ring Road of Xinle city in Hebei province Shijiazhuang City, No. 136, 050700

Patentee before: Xinle Huabao Plastic Machine Co., Ltd.