CN103737892A - Sealed automatically-compensated quick screen-changing plate filter - Google Patents
Sealed automatically-compensated quick screen-changing plate filter Download PDFInfo
- Publication number
- CN103737892A CN103737892A CN201310709310.6A CN201310709310A CN103737892A CN 103737892 A CN103737892 A CN 103737892A CN 201310709310 A CN201310709310 A CN 201310709310A CN 103737892 A CN103737892 A CN 103737892A
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- Prior art keywords
- outlet
- flange
- plate
- filter
- discharge
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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
- B29C48/69—Filters or screens for the moulding material
Abstract
The invention relates to a sealed automatically-compensated quick screen-changing plate filter which comprises an inlet flange, an outlet flange, a distance plate and an electric heating plate. The filter is characterized by further comprising a hydraulic cylinder and a base plate thereof, wherein the base plate is connected with the distance plate through a lead screw, a reciprocating sliding pore plate connected with a cylinder rod of the hydraulic cylinder is arranged in a space formed by the inlet flange, the outlet flange and the distance plate and is provided with two parallel grooves which alternately correspond to a hot melt inlet and outlet of the inlet and outlet flanges, filter screens are arranged in the grooves, matrix-shaped through holes are formed in the bottoms of the grooves, a seal ring and a pressure ring around the hot melt inlet and outlet are arranged on a contact face of the inlet and outlet flanges and the reciprocating sliding pore plate, step-like circular cavities are respectively formed in the inlet and outlet flanges and correspond to the seal ring, elastic compensating rings are arranged in the circular cavities, and a plurality of communicating holes are respectively formed between the hot melt inlet and outlet. The filter provided by the invention solves the problem that for an existing plate filter, a seal ring is likely to wear to become invalid and a filter screen is troublesome to change.
Description
Technical field
The present invention relates to the filter using in a kind of hot melt production process, particularly a kind of quick net exchanging leaf filter that seals auto-compensation.
Background technology
In to the production process of the hot melts such as PP, PE, PUR and elastomer, in hot melt, be entrained with unavoidably mechanical admixture, do not filter out these mechanical admixtures, can cause certain trouble to following process, also can cause the defective problem of product quality simultaneously.Therefore, filter out mechanical admixture very necessary, generally at outlet of extruder, adopt filter to filter.
Traditional leaf filter, the easy wear out failure of its sealing ring, thus cause hot melt to leak, cause the accidents such as stopping production of stopping.The process of changing in addition sealing ring is also pretty troublesome.
Summary of the invention
The object of the invention is for a kind of quick net exchanging leaf filter of sealing auto-compensation of the problem that solves the inefficacy easy to wear of existing leaf filter sealing ring, screen replacing trouble is provided.
Technical scheme of the present invention is:
A kind of quick net exchanging leaf filter that seals auto-compensation, comprise the suction flange and the outlet(discharge) flange that utilize securing member to be fixed as one, on being clipped on respectively between suction flange and outlet(discharge) flange, the distance plate of lower limb, be fixed on the electric boiling plate in suction flange and outlet(discharge) flange outside, its special character is: be also provided with hydraulic cylinder and seat board thereof, described seat board utilizes screw mandrel to be connected with described distance plate, described suction flange, in the space that outlet(discharge) flange forms with distance plate three, be provided with the orifice plate that reciprocatingly slides being connected with described hydraulic cylinder bar, the described orifice plate that reciprocatingly slides be provided with two arranged side by side and enter with described, the hot melt of outlet(discharge) flange enters, outlet replaces corresponding groove, in described groove, be provided with filter screen and its bottom land is provided with rectangular through hole, describedly enter, on the contact-making surface of outlet(discharge) flange and the orifice plate that reciprocatingly slides, be respectively equipped with around hot melt, sealing ring and the pressure ring of outlet, describedly enter, the corresponding described sealing ring of outlet(discharge) flange position offers respectively stair-stepping toroidal cavity, in described toroidal cavity, be provided with elastic compensation ring, and enter with hot melt, between outlet, be respectively equipped with a plurality of intercommunicating pores.
The quick net exchanging leaf filter of above-mentioned sealing auto-compensation, the material of described sealing ring is cast iron, copper alloy or impregnated graphite.
The quick net exchanging leaf filter of above-mentioned sealing auto-compensation, the thickness of described elastic compensation ring is 1mm～4mm.
The invention has the beneficial effects as follows:
1, owing to having set up elastic compensation ring at sealing ring place, elastic compensation ring place cavity is communicated with hot melt import and export respectively by a plurality of intercommunicating pores, hot melt pressure forces elastic compensating annular strain, thereby make the wearing and tearing of sealing ring under the orifice plate effect that reciprocatingly slides obtain auto-compensation, solved the problem of existing leaf filter sealing ring inefficacy easy to wear, extend its service life, prevent filter leaks.
2,, because the orifice plate that reciprocatingly slides is connected with hydraulic cylinder bar, it moves back and forth and makes the groove that filter screen is installed arranging on it be exposed to outside under the effect of hydraulic cylinder bar, thereby is convenient for changing filter screen, reaches the object of quick net exchanging.
3, safeguard simply, easily operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 be in Fig. 1 A-A to profile;
Fig. 3 is that in Fig. 2, " I " locates partial enlarged drawing;
Fig. 4 is the structural representation of the orifice plate that reciprocatingly slides of the present invention.
In figure: hydraulic cylinder 1, bearing pin 2, the orifice plate 3 that reciprocatingly slides, circular groove 301, rectangular through hole 302, electric boiling plate 4, securing member 5, suction flange 6, toroidal cavity 601, intercommunicating pore 602, sealing ring 7, outlet(discharge) flange 8, toroidal cavity 801, intercommunicating pore 802, distance plate 9, filter screen 10, screw mandrel 11, seat board 12, elastic compensation ring 13, pressure ring 14.
The specific embodiment
As shown in the figure, the quick net exchanging leaf filter of sealing auto-compensation, comprise the suction flange 6 and the outlet(discharge) flange 8 that utilize securing member 5 to be fixed as one, be clipped on respectively the distance plate 9 at upper and lower edge between suction flange 6 and outlet(discharge) flange 8, be fixed on the electric boiling plate 4 in suction flange 6 and outlet(discharge) flange 8 outsides, hydraulic cylinder 1 and seat board 12 thereof, orifice plate 3 reciprocatingly slides.Wherein, described seat board 12 utilizes screw mandrel 11 to be connected with described distance plate 9, the described orifice plate 3 that reciprocatingly slides is located in the space that suction flange 6, outlet(discharge) flange 8 and distance plate 9 threes form and is utilized bearing pin 2 to be connected with described hydraulic cylinder 1 cylinder bar, the described orifice plate 3 that reciprocatingly slides be provided with two arranged side by side and replace corresponding circular groove 301 with the hot melt import and export of described import and export flange 6,8, in described groove 301, be provided with filter screen 10 and its bottom land and be provided with rectangular through hole 302.On the contact-making surface of described import and export flange 6,8 and the orifice plate 3 that reciprocatingly slides, be respectively equipped with sealing ring 7 and the pressure ring 14 around hot melt import and export, circular groove 301 surroundings are sealed, sealing ring 7 forms static seal with pressure ring 14.The corresponding described sealing ring of described import and export flange 6,87 positions offer respectively stair-stepping toroidal cavity 601,801, in described toroidal cavity 601,801, be respectively equipped with elastic compensation ring 13, and and hot melt import and export between be respectively equipped with a plurality of intercommunicating pores 602,802.
The material of described sealing ring 7 is cast iron, copper alloy or impregnated graphite.The thickness of described elastic compensation ring 13 is 1mm～4mm.In the present embodiment, the material of sealing ring 7 is copper alloy.The thickness of elastic compensation ring 13 is 2mm.
Claims (3)
1. a quick net exchanging leaf filter that seals auto-compensation, comprise the suction flange and the outlet(discharge) flange that utilize securing member to be fixed as one, on being clipped on respectively between suction flange and outlet(discharge) flange, the distance plate of lower limb, be fixed on the electric boiling plate in suction flange and outlet(discharge) flange outside, it is characterized in that: be also provided with hydraulic cylinder and seat board thereof, described seat board utilizes screw mandrel to be connected with described distance plate, described suction flange, in the space that outlet(discharge) flange forms with distance plate three, be provided with the orifice plate that reciprocatingly slides being connected with described hydraulic cylinder bar, the described orifice plate that reciprocatingly slides be provided with two arranged side by side and enter with described, the hot melt of outlet(discharge) flange enters, outlet replaces corresponding groove, in described groove, be provided with filter screen and its bottom land is provided with rectangular through hole, describedly enter, on the contact-making surface of outlet(discharge) flange and the orifice plate that reciprocatingly slides, be respectively equipped with around hot melt, sealing ring and the pressure ring of outlet, describedly enter, the corresponding described sealing ring of outlet(discharge) flange position offers respectively stair-stepping toroidal cavity, in described toroidal cavity, be provided with elastic compensation ring, and enter with hot melt, between outlet, be respectively equipped with a plurality of intercommunicating pores.
2. the quick net exchanging leaf filter of sealing auto-compensation according to claim 1, is characterized in that: the material of described sealing ring is cast iron, copper alloy or impregnated graphite.
3. the quick net exchanging leaf filter of sealing auto-compensation according to claim 1, is characterized in that: the thickness of described elastic compensation ring is 1mm～4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310709310.6A CN103737892B (en) | 2013-12-21 | 2013-12-21 | A kind of quick net exchanging plate filter sealing compensation automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310709310.6A CN103737892B (en) | 2013-12-21 | 2013-12-21 | A kind of quick net exchanging plate filter sealing compensation automatically |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103737892A true CN103737892A (en) | 2014-04-23 |
| CN103737892B CN103737892B (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310709310.6A Active CN103737892B (en) | 2013-12-21 | 2013-12-21 | A kind of quick net exchanging plate filter sealing compensation automatically |
Country Status (1)
| Country | Link |
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| CN (1) | CN103737892B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526908A (en) * | 2015-01-16 | 2015-04-22 | 陈艳 | Quick foreign matter remover |
| CN112078171A (en) * | 2019-06-14 | 2020-12-15 | 中国石油化工股份有限公司 | Orifice plate switching assembly of bar extruder and bar extruder comprising same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06262008A (en) * | 1992-12-02 | 1994-09-20 | Gneuss Kunststofftechnik Gmbh | Melt filter for purifying plastic melt |
| CN2448544Y (en) * | 2000-11-17 | 2001-09-19 | 韩基政 | Quick net changing apparatus for plastics extruder |
| CN101386206A (en) * | 2008-10-29 | 2009-03-18 | 张家港市贝尔机械有限公司 | Quick net exchanging device |
| CN201427391Y (en) * | 2009-04-10 | 2010-03-24 | 张春华 | Improved structure of plate-type screen changer |
| CN101830067A (en) * | 2010-05-18 | 2010-09-15 | 昆山科信橡塑机械有限公司 | Quick-open type screen change structure with heater |
-
2013
- 2013-12-21 CN CN201310709310.6A patent/CN103737892B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06262008A (en) * | 1992-12-02 | 1994-09-20 | Gneuss Kunststofftechnik Gmbh | Melt filter for purifying plastic melt |
| CN2448544Y (en) * | 2000-11-17 | 2001-09-19 | 韩基政 | Quick net changing apparatus for plastics extruder |
| CN101386206A (en) * | 2008-10-29 | 2009-03-18 | 张家港市贝尔机械有限公司 | Quick net exchanging device |
| CN201427391Y (en) * | 2009-04-10 | 2010-03-24 | 张春华 | Improved structure of plate-type screen changer |
| CN101830067A (en) * | 2010-05-18 | 2010-09-15 | 昆山科信橡塑机械有限公司 | Quick-open type screen change structure with heater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526908A (en) * | 2015-01-16 | 2015-04-22 | 陈艳 | Quick foreign matter remover |
| CN104526908B (en) * | 2015-01-16 | 2017-07-21 | 陈艳 | Rapid impurity removal device |
| CN112078171A (en) * | 2019-06-14 | 2020-12-15 | 中国石油化工股份有限公司 | Orifice plate switching assembly of bar extruder and bar extruder comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103737892B (en) | 2016-06-01 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Jingpeng Inventor after: Chen Youqing Inventor after: Zhang Haijun Inventor after: Qu Fenglai Inventor after: Lei Junxia Inventor after: Fang Yajiao Inventor after: Li Shiyu Inventor after: Zhang Qiao Inventor before: Liu Jingpeng Inventor before: Chen Youqing Inventor before: Zhang Haijun Inventor before: Qu Fenglai Inventor before: Lei Junxia Inventor before: Fang Yajiao |
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