CN202439202U

CN202439202U - Double-extruder capable of realizing filter screen replacement without halt

Info

Publication number: CN202439202U
Application number: CN201220095901XU
Authority: CN
Inventors: 陈崇锡; 黄美昌; 周传对
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-05
Filing date: 2012-03-05
Publication date: 2012-09-19
Anticipated expiration: 2022-03-05

Abstract

The utility model discloses a double-extruder capable of realizing filter screen replacement without a halt, comprising a first extruder and a second extruder, wherein each extruder comprises a reduction box, a charging barrel, and a screw rod, a plastic melt filter is installed on the end part of the first extruder, a melt inlet of the plastic melt filter is connected with a melt outlet of the charging barrel, and a melt discharge port of the plastic melt filter is connected to be above a charge port of the second extruder. The double-extruder disclosed by the utility model has the following advantages that two plastic extruders are utilized, so that a plastic melt extruded by the first extruder enters the second extruder to continue extrusion after being filtered to remove impurities; no matter which one of a single-cylinder single-filter-mesh mode, a single-cylinder double-filter-mesh mode and a multi-cylinder multi-filter-mesh mode is adopted by the melt filter installed at the tail end of the first extruder, the normal work of the second extruder cannot be influenced during mesh replacement; and the physical labour of operating personnel can be lightened, working efficiency can be increased, waste can be reduced, and electric energy can be saved.

Description

Do not shut down and change the two extruders of filter screen

Technical field

The utility model relates to the plastics machinery field, does not especially shut down and changes the two extruders of filter screen.

Technical background

The plastic flat fiber wire drawing machine of making both at home and abroad at present, selling, use, plastics circle silk wire drawing machine, plastic film blowing machine; Its main frame is a plastic extruder, and no matter its filter that uses is to use the most general plastic flat fiber wire drawing machine as the manual filter of single cylinder; Still a plastics circle silk wire drawing machine, plastic film blowing machine often will be shut down the replacing screen pack in the production run process, and will shut down replacing every day when particularly using plastic reclaimed material; Sometimes changed repeatedly in one day, screen pack of every replacing, operating personnel will carry out the manual work loading and unloading to the filter screen briquetting; Pay heavy manual labor, also cause raw material serious waste and waste of electric energy simultaneously.

The utility model content

The purpose of the utility model is to overcome above-mentioned defective; For providing a kind of, plastic flat fiber production, the silk production of plastics circle or plastic sheeting production can long-time continuous normally move; Alleviate operating personnel's manual labor; Enhance productivity, improve raw material availability and energy savings, particularly do not shut down and change the two extruders of filter screen.

Change the two extruders of filter screen for realizing above-mentioned purpose, not shutting down, include first extruder and second extruder; Each extruder includes reduction box, barrel, screw rod; Barrel one end is fastened on the reduction box casing, and screw rod is installed in the barrel, it is characterized in that: the said first extruder end is equipped with the plastic melt filter; Plastic melt filter melt inlet is connected with the outlet of barrel melt, and the discharging of plastic melt filter melt is connected to the top of the second extruder charging aperture.

As preferably: said plastic melt filter is a single cylinder double filter screen fondant filter; Be provided with strainer body in its cylinder body; Strainer body can move around with respect to cylinder body; Strainer body is provided with one or more porous devices, and screen pack is installed on the porous device, and strainer body is connected with power set.

As preferably: said plastic melt filter is many filter screens of multi-cylinder fondant filter, is provided with two or more strainer bodies in the cylinder body, and strainer body can move around with respect to cylinder body, on each strainer body power set is installed.

The beneficial effect of the utility model is owing to utilize two plastic extruders, gets into second extruder after the plastic melt process elimination removal of impurity that first extruder is extruded and continues to extrude, and is installed in the fondant filter of the first extruder tail end; No matter be to adopt single cylinder list filter screen or single cylinder double filter screen or the many filter screens of multi-cylinder; Do not influence second extruder operate as normal during draping, can alleviate operating personnel's manual labor, increase work efficiency; Cut the waste saves energy.

Description of drawings

Fig. 1 is that the utility model is not shut down the structural representation that changes the two embodiment of extruder of filter screen.

Fig. 2 is that the utility model is not shut down a fondant filter structural representation that changes the two extruder embodiment of filter screen.

Fig. 3 is that the utility model is not shut down another fondant filter structural representation that changes the two extruder embodiment of filter screen.

Fig. 4 is that the utility model is not shut down another fondant filter structural representation that changes the two extruder embodiment of filter screen.

Fig. 5 is that the utility model is not shut down the 4th the fondant filter structural representation that changes the two extruder embodiment of filter screen.

The specific embodiment

Below in conjunction with accompanying drawing further explain embodiment

With reference to Fig. 1: Fig. 1 is that the utility model is not shut down the structural representation that changes the two embodiment of extruder of filter screen, 1-A reduction box, 2-A feed hopper, 3-A barrel, 4-A screw rod, 5-plastic melt filter, 6-B reduction box, 7-filter melt discharging opening, 8-B feed hopper, 9-B barrel, 10-B screw rod, 11-threeway, 12-die head, does not shut down and changes the two extruders of filter screen, includes first extruder and second extruder; First extruder includes A reduction box 1, A feed hopper 2, A barrel 3, A screw rod 4, plastic melt filter 5, second extruder and includes B reduction box 6, B feed hopper 8, B barrel 9, B screw rod 10, threeway 11 and die head 12, and A barrel 3 one ends are fastened on A reduction box 1 casing, and A screw rod 4 is installed in the A barrel 3; A barrel 3 other ends are equipped with plastic melt filter 5, and B barrel 9 one ends are fastened on B reduction box 6 casings, and B screw rod 10 is installed in the B barrel 9; B barrel 9 other ends are equipped with threeway 11, and threeway 11 is connected with die head 12, during ordinary production; The plastic solidification raw material gets into the first extruder A barrel 3 from the first extruder A feed hopper 2, and under temperature and 4 effects of A screw rod, the plastic solidification raw material is fused into melt gradually and gets into fondant filter 5; Filter through fondant filter 5; Plastic melt behind the removal impurity flows out from fondant filter 5 melt discharging openings 7, and plastic melt gets into the second extruder B feed hopper 8 after at high temperature vaporing away moisture and air, under 10 effects of B screw rod, gets into die heads 12 extrusion moldings through threeway 11; See that from figure the said plastic melt filter 5 of present embodiment is single cylinder double filter screen filter; In conjunction with Fig. 2, only need start power set 21 when changing filter screen, strainer body 22 is advanced in filtering jar body 25; Filter screen on the A porous device 23 gets into the operating position; B filter screen 24 is pushed out filtering jar body 25 simultaneously, and it is subsequent use that filter screen B24 is changed the back, when needing to change the filter screen on the A porous device 23; Start power set 21; Strainer body 22 is pulled out in filtering jar body 25, the filter screen work on the B filter screen 24 replacement A porous devices 23, B filter screen 24 is in outside the filtering jar body 25; Change subsequent use to B filter screen 24; This double filter screen is changed in turn and is not used alternatingly and need shuts down, and does not influence ordinary production, and the said plastic melt filter 5 of present embodiment can be selected structures such as single cylinder or multi-cylinder plastic melt filter such as Fig. 2, Fig. 3, Fig. 4, Fig. 5 of multiple structural shape be said for use.

With reference to Fig. 2: Fig. 2 is that the utility model is not shut down a fondant filter structural representation that changes the two extruder embodiment of filter screen, 21-power set, 22-strainer body, 23-A porous device, 24-B filter screen, 25-filtering jar body, 26-filter melt inlet, the outlet of 27-filter melt, and Fig. 2 is that the utility model band intermediate filter is not shut down a kind of fondant filter structural representation that changes filter screen plastic extruder embodiment; Include power set 21, strainer body 22, A porous device 23 and the filter screen on it, B filter screen 24 and interior porous device, filtering jar body 25 thereof, filter screen on the said A porous device 23 and B filter screen 24 are installed on the strainer body 22, and strainer body 22 is installed in the filtering jar body 25; Strainer body 22 and filtering jar body 25 are for movingly, and present embodiment is the two net of single cylinder plastic melt filters, shows among the figure; During operate as normal, plastic melt gets into from filter melt inlet 26, after B filter screen 24 filters, goes out from filter melt outlet 27; When changing filter screen; Only need utilize power set (motor or cylinder or hydraulic cylinder) 21 that strainer body 22 is advanced filtering jar body 25, the filter screen on the A porous device 23 replaces B filter screen 24 gradually and gets into normal operating conditions, and B filter screen 24 is in outside the filtering jar body 25 at this moment; B filter screen 24 is changed; For use, when changing filter screen for the second time strainer body 22 to be pulled out, B filter screen 24 gets into duty; It is external that filter screen on this moment A porous device 23 is in filtering jar; Filter screen on the A porous device 23 is changed, and is for use, and being used alternatingly to change in turn of this filter screen need do not shut down.

With reference to Fig. 3: Fig. 3 is that the utility model is not shut down another fondant filter structural representation that changes the two extruder embodiment of filter screen; 31-A power set, 32-B power set, 33-filter cylinder body, 34-filter melt charging aperture, 35-A cylinder melt discharging opening, 36-B cylinder melt discharging opening, 37-B cylinder strainer body, 38-A cylinder filter screen, 39-A cylinder strainer body; The present embodiment fondant filter is provided with two cylinders, and during ordinary production, melt gets into fondant filter from filter melt charging aperture 34; Flow out from melt discharging opening 35 and melt discharging opening 36 after the melt process elimination removal of impurity; When changing filter screen,, only need start that A power set 31 eject A cylinder strainer body 39 as the figure position is unloaded old filter screen and changed new filter screen as changing A cylinder filter screen 38; This moment, B cylinder filter screen worked on; Start A power set 31 A cylinder strainer body 39 is withdrawn into the operating position, in kind change B cylinder filter screen, this two cylinder filter screens are worked simultaneously; Only a cylinder filter screen does not influence ordinary production and need not shut down in work when draping.

With reference to Fig. 4: Fig. 4 is that the utility model is not shut down another fondant filter structural representation that changes the two extruder embodiment of filter screen, 41-melt charging aperture, 42-A cylinder strainer body, 43-A cylinder filter screen, 44-B cylinder strainer body, 45-A cylinder melt discharging opening, 46-B cylinder melt discharging opening, 47-B cylinder power set, 48-A cylinder power set, and present embodiment is that the filter screen shape is different with top two embodiment differences of Fig. 3 Fig. 4; So corresponding structure such as strainer body are also different; Its advantage is that screen area is big, and the present embodiment fondant filter is provided with two cylinders, can claim the two net of twin-tub fondant filter; During ordinary production; Melt gets into fondant filter from charging aperture 41, flows out from melt discharging opening 45 and melt discharging opening 46 after the melt process elimination removal of impurity, when changing filter screen; As change A cylinder filter screen 43; Only need start A power set 48 and A cylinder strainer body 43 is ejected unload old filter screen like the figure position and change new filter screen, start A power set 48 again A cylinder strainer body 43 is retracted the operating position, in kind change B cylinder filter screen; When draping, still have the filter screen of a cylinder to work on, therefore need not shut down and change filter screen.

With reference to Fig. 5: Fig. 5 is that the utility model is not shut down the 4th the fondant filter structural representation that changes the two extruder embodiment of filter screen; 51-left side cylinder power set, 52-left side cylinder filter screen briquetting, 53-left side cylinder filter screen briquetting discharge opening, 54-left side cylinder filter screen porous device, 55-left side cylinder discharging opening, 56-left side cylinder filter screen, the right cylinder melt of 57-discharging opening, 58-part runner, 59-charging sprue, 60-on the left side and part runner, the right cylinder filter screen of 61-briquetting discharge opening, the right cylinder filter screen of 62-porous device, the right cylinder discharging of 63-control valve, 64-left side cylinder discharging control valve, 65-filtering jar body, 66-filter melt charging connector on the right side; Present embodiment is that twin-tub double filter screen fondant filter includes left cylinder power set 51, left cylinder filter screen briquetting 52, left cylinder filter screen porous device 54, left cylinder filter screen 56, right cylinder filter screen porous device 62, right cylinder discharging control valve 63, right cylinder discharging control valve 64, filtering jar body 65, filter melt charging connector 66; Two cylinders about filtering jar body 65 is provided with; Screen pack, porous device, filter screen briquetting are installed on each cylinder body from inside to outside, and porous device is installed in and compresses screen pack work on the filter screen briquetting, during operate as normal; Plastic melt gets into sprue 59 from 66; Two runners about dividing a plurality of runners, present embodiment fondant filter to be advance to part on the left side runner 58 like melt and filter through the laggard left cylinder filter screen 56 of left cylinder discharging control valve 64 controls; Get into left cylinder discharging opening 55 through left cylinder filter screen porous device 54 from left cylinder filter screen briquetting discharge opening 53; When changing filter screen, close one of them charging control valve, as close left charging control valve 64; Start left cylinder power set 51; Left filter screen briquetting 52 is pulled out from left cylinder, behind the last new filter screen 56 of old filter screen taking-up replacing, start left cylinder power set 51 filter screen briquetting 52 is advanced from left cylinder; After more changing left cylinder filter screen; Open left cylinder charging control valve 64 left cylinder filter screen input is normally used, in kind change left cylinder filter screen, this filter screen that changes in turn need not shut down.

The beneficial effect of the utility model: because the plastic melt filter is installed in the first extruder end plastic melt is filtered; Second extruder need not shut down when changing screen pack; The used raw material of second extruder is a melt of crossing filtration through first extruder, therefore can make plastic flat fiber production, the silk production of plastics circle or plastic sheeting production provide long-time continuous normally to move, and alleviates operating personnel's manual labor; Enhance productivity, improve raw material availability and energy savings.

Claims

1. do not shut down and change the two extruders of filter screen; Include first extruder and second extruder, each extruder includes reduction box, barrel, screw rod, and barrel one end is fastened on the reduction box casing; Screw rod is installed in the barrel; It is characterized in that: the said first extruder end is equipped with the plastic melt filter, and plastic melt filter melt inlet is connected with the outlet of the first extruder barrel melt, and the discharging of plastic melt filter melt is connected to the top of the second extruder charging aperture.

2. do not change the two extruders of filter screen according to said shutdown of claim 1; It is characterized in that said plastic melt filter; Be provided with strainer body in its cylinder body, strainer body can move around with respect to cylinder body, and strainer body is provided with one or more porous devices; Screen pack is installed on the porous device, and strainer body is connected with power set.

3. do not change the two extruders of filter screen according to said shutdown of claim 1; It is characterized in that said plastic melt filter is many filter screens of multi-cylinder fondant filter; Be provided with two or more strainer bodies in the cylinder body, strainer body can move around with respect to cylinder body, on each strainer body power set is installed.