CN101301785B - Cup-shaped filter screen double-slip column net exchanging device - Google Patents
Cup-shaped filter screen double-slip column net exchanging device Download PDFInfo
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- CN101301785B CN101301785B CN2008100106265A CN200810010626A CN101301785B CN 101301785 B CN101301785 B CN 101301785B CN 2008100106265 A CN2008100106265 A CN 2008100106265A CN 200810010626 A CN200810010626 A CN 200810010626A CN 101301785 B CN101301785 B CN 101301785B
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- screen
- cup
- draping
- filter
- sliding column
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a plastic extruding processing device. A double-traveler screen changing device of a cup filter screen relates to a hydraulic cylinder, a screen changing shell, an upper sliding column, a lower sliding column and filter units. Two radial through holes are arranged on the screen changing shell; the sliding columns are arranged in the radial through holes. A screen chamber is arranged on the sliding column; a supporting plate and the filter unit are arranged in the screen chamber; a feed opening and a discharge opening are respectively arranged at the front end surface and the back end surface of the screen changing shell; the feed opening and the discharge opening are respectively provided with two flow passages to be communicated with the screen chambers of the upper sliding column and the lower sliding column. The cup filter units are adopted by the invention to lead the filter screen to be solidly arranged instead of the original plane arrangement, thus fully utilizing the solid spaces of the screen chambers and being capable of arranging a plurality of filter units according to the size of the spaces. The filter area is increased by ten times or a plurality of tens of times than that of the plane arrangement, thus prolonging the period to change the screens to the largest extent. The two ends of the screen changing shell are provided with water seal rings, thus playing the role of better seal.
Description
One, technical field
The present invention relates to plastics and extrude process equipment, particularly plastic apparatus screen pack net exchanging device.
Two, background technology
Extrusion molding is the most important processing methods of plastics; Because plastic raw materials generally all contains impurity, need be at the front end mounting filtering net of extruder, for quality and the production continuously that guarantees plastic products; Need in time carry out screen pack changes; For the ease of changing screen pack, people have developed various net exchanging devices, and existing net exchanging device is divided into slide type and two kinds of forms of slide column type basically.Wherein slide column type is divided into single traveller and two two kinds of forms of traveller again.Along with extrusion equipment to development large-scale, highly efficient and productive direction, how to increase screen area, prolong the draping cycle; How to adopt the effective method sealing; How to improve the research direction that the stability of producing during the draping is net exchanging device.
Domestic for this reason ZL03235169.0 patent discloses a kind of four runner pillar net exchanging devices, has four runners, four solariums and washes the net function, can realize not shutting down draping.But this kind net exchanging device also comes with some shortcomings: at first, though four solariums have enlarged one times than two solarium's filter areas in the past, for the main equipment of high yield; This kind structure wants to meet the requirements of filter area; Can cause device huge, structure is complicated again, and cost is too high; Secondly, because traveller is free to slide in the draping body when requiring draping, so certain interval is arranged between the two, fused materials can spill from gap location, and especially the rarer material hourglass material phenomenon of processing is serious.
Three, summary of the invention
The object of the invention overcomes above-mentioned not enough problem to large-scale extrusion equipment, and a kind of cup-shaped filter element double-slip column net exchanging device is provided, and filter area increases, and the draping cycle is long, does not shut down draping, and sealing property is good.
The present invention for realizing the technical scheme that above-mentioned purpose adopted is: a kind of cup-shaped filter screen double-slip column net exchanging device, relate to hydraulic cylinder, draping housing, upper and lower traveller and filter element, and two axially extending bores are arranged on the draping housing; Traveller is installed in the axially extending bore; The solarium is housed on the traveller, gripper shoe and filter element is installed, in the solarium in the front and rear end of draping housing; Have charging aperture and discharging opening, charging aperture and discharging opening have two runners to communicate with the solarium of upper and lower traveller respectively.
Said filter element is cup-shaped filter element, on the cup-shaped cylindrical shell screen pack is housed, and the branch flow cone is housed in the cylindrical shell.
Seal cage is equipped with at the two ends of said draping housing.
The present invention has outstanding feature compared with similar products: because the present invention adopts cup type filter element, screen pack is placed by the plane become three-dimensional the placement, make full use of the solid space of solarium, arrange several filter elements according to the big I in space.The screen pack that filter area is placed than the plane increases tens times even tens times, has prolonged the draping cycle to greatest extent.The present invention is equipped with seal cage at draping housing two ends, and seal cage is the chuck form, and the water flowing cooling is solidified the fused materials that spills from gap between draping housing and the traveller when work, plays good sealing function.
Four, description of drawings
Fig. 1 is a net exchanging device structural representation of the present invention.
The state diagram of Fig. 2 during for draping of the present invention.
Fig. 3 is a draping status architecture sketch map of the present invention.
Fig. 4 is a filter element structural representation of the present invention
Five, the specific embodiment
Cup-shaped filter screen double-slip column net exchanging device as shown in Figure 1 mainly is made up of hydraulic cylinder 1, draping housing 2, upper and lower traveller 3, filter element 4, gripper shoe 5, seal cage 6 etc., and two axially extending bores are arranged on the draping housing; Be separately installed with upper and lower traveller in the upper and lower axially extending bore, the solarium is housed on the traveller, gripper shoe and cup-shaped filter element are installed in the solarium; Filter element is as shown in Figure 4; Screen pack 8 is housed on the cup-shaped cylindrical shell 9, branch flow cone 10 is housed in the cylindrical shell, have charging aperture and discharging opening in the front and rear end of draping housing; Charging aperture and discharging opening have two runners 7 to communicate with the solarium of upper and lower traveller respectively, and seal cage is equipped with at the two ends of draping housing.
When this installs (like Fig. 1) fused materials when in running order is got into upper and lower traveller respectively through two runners by charging aperture two solariums; Material gets into " cup " inside through the outside screen pack of cup-shaped filter element, is discharged by discharging opening through the inclined flow passage that links to each other with discharging opening.Impurity increases on screen pack; When import and export pressure reduction reached a numerical value, the seal cage cooling water stopped, and the hydraulic cylinder of one of them traveller promotes traveller to draping position (like Fig. 3); With tearing the net instrument open gripper shoe is ejected together with filter element then, change new gripper shoe and filter element; After draping finished, traveller was got back to the operate as normal position.Another traveller carries out draping, and after draping finished, another traveller was got back to working position, and seal cage feeds cooling water, and device recovers normal operating conditions.
Claims (2)
1. cup-shaped filter screen double-slip column net exchanging device relates to hydraulic cylinder, draping housing, upper and lower traveller and filter element, it is characterized in that: two axially extending bores are arranged on the draping housing (2); Traveller (3) is installed in the axially extending bore; The solarium is housed on the traveller, gripper shoe (5) and filter element (4) is installed, in the solarium in the front and rear end of draping housing; Have charging aperture and discharging opening; Charging aperture and discharging opening have two runners to communicate with the solarium of upper and lower traveller respectively, and seal cage (6) is equipped with at the two ends of draping housing (2), and said seal cage is the chuck form.
2. 1 described cup-shaped filter screen double-slip column net exchanging device as requested, it is characterized in that: filter element is cup-shaped filter element, and screen pack (8) is housed on the cup-shaped cylindrical shell (9), and branch flow cone (10) is housed in the cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100106265A CN101301785B (en) | 2008-03-12 | 2008-03-12 | Cup-shaped filter screen double-slip column net exchanging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100106265A CN101301785B (en) | 2008-03-12 | 2008-03-12 | Cup-shaped filter screen double-slip column net exchanging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101301785A CN101301785A (en) | 2008-11-12 |
| CN101301785B true CN101301785B (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100106265A Active CN101301785B (en) | 2008-03-12 | 2008-03-12 | Cup-shaped filter screen double-slip column net exchanging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN101301785B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102092107A (en) * | 2010-12-18 | 2011-06-15 | 大连橡胶塑料机械股份有限公司 | Screen changer for squeezing granulators |
| CN102343658A (en) * | 2011-09-30 | 2012-02-08 | 南京创博机械设备有限公司 | Melt filter for online circulating screen cleaning of recycled plastics, with large filter screen area and implemented without material interruption |
| CN102641633A (en) * | 2012-04-28 | 2012-08-22 | 大连橡胶塑料机械股份有限公司 | Quick changing device of filter screen |
| CN104108170A (en) * | 2014-08-07 | 2014-10-22 | 魏正才 | Double-runner and fluctuation-free screen exchanger |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2264646Y (en) * | 1996-07-25 | 1997-10-15 | 南京现代液压机电科技有限公司 | Melt filter gauze changer |
-
2008
- 2008-03-12 CN CN2008100106265A patent/CN101301785B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2264646Y (en) * | 1996-07-25 | 1997-10-15 | 南京现代液压机电科技有限公司 | Melt filter gauze changer |
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| Publication number | Publication date |
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| CN101301785A (en) | 2008-11-12 |
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Effective date of registration: 20161214 Address after: 116036 Ganjingzi Province, Dalian District, Hui Road, No. 18, Patentee after: Dalian Rubber Plastic Machinery Co., Ltd. Address before: 116033 Liaoning city of Dalian province Zhoushuizi Plaza on the 1st Patentee before: Dalian Rubber & Plastics Machinery Co., Ltd. |