CN203046219U

CN203046219U - Plastic extruder capable of screen changing net for a long time

Info

Publication number: CN203046219U
Application number: CN2012206652630U
Authority: CN
Inventors: 黄美昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-25
Filing date: 2012-11-25
Publication date: 2013-07-10
Anticipated expiration: 2022-11-25

Abstract

The utility model discloses a plastic extruder capable of not changing a screen for a long time. The extruder comprises a charging barrel, a screw rod, a filter and a die head, wherein the filter is arranged between the charging barrel and the die head or in the middle of the charging barrel; the filter comprises a fusant feed port, an outer ring, an inner ring, a rear filter plate, a porous plate, a base plate, a cover plate, the filter screen, a filter screen pushing device or traction device, a front filter plate, a rear filter cavity, a fusant discharge port, a rear sealing device, an impurity clearer, an impurity material outlet and a front sealing device; and the filter screen has a cylindrical structure with connected head and tail, is arranged on the outer circle surface of the inner ring, is pushed by the pushing device or traction device to carry out filtration and impurity clearing circulation, and is used circularly. The extruder has the beneficial effects that frequent shutdown is not needed for replacement of the filter screen, and the filter screen can be not replaced for a long time when the extruder works, so that a lot of time is saved, the working efficiency is improved, raw materials are saved, power consumption is reduced, and the labor intensity of workers is greatly reduced.

Description

The plastic extruder of not draping for a long time

Technical field

The utility model relates to the plastics machinery field, the plastic extruder of not draping especially for a long time.

Technical background

Make both at home and abroad at present; sell; the plastic flat fiber wire drawing unit that uses; plastics circle silk wire drawing unit; plastics are extruded the unit of filming; the plastic membrane blowing unit; main frame one plastic extruder that plastic calender group and nonwoven production unit etc. adopt; raw material in plastic extruder, melt extrude before the die head moulding essential earlier after filtration; the most frequently used filtration is single cylinder or multi-cylinder filter structure and does not shut down draping structure at present; all structural plastic extruders of prior art; all must often change filter screen, even it is the described draping plastic extruder of not shutting down also is all to adopt the disposable uses of new filter screen, many owing to impurity when particularly using the plastics recovery material; it is more frequent to change filter screen; not only waste a large amount of metal screens, draping labour intensity is big, the power consumption height; also need often to shut down and change filter screen, have a strong impact on ordinary production.

The utility model content

The purpose of this utility model is to overcome above-mentioned defective, the plastic extruder of not draping for a long time is provided, include barrel 101, screw rod 102, filter 103 and die head 104, screw rod 102 is installed in the barrel 101, filter 103 is installed between barrel 101 and the die head 104 or is installed in barrel 101 middle parts, it is characterized in that: described filter includes melt charging aperture 1, outer ring 2, inner ring 3, filter back plate 5, porous plate 4, chassis 6, cover plate 7, filter screen 8, filter ante-chamber 9, filter back cavity 10, melt discharging opening 11, back sealing device 12, contaminant removal device 14, the outlet 15 of impurity material and preceding sealing device 17, described filter screen 8 is the cylinder-like structure that connects from beginning to end, be installed in the outer round surface of inner ring 3, design has filter ante-chamber 9 between outer ring 2 and the filter screen 8, design has filter back cavity 10 between inner ring 3 and the filter back plate 5, it is porous plate 4 that inner ring 3 designs between filter ante-chamber 9 and filter back cavity 10 have some holes, sealing device 17 and back sealing device 12 before two of filter ante-chamber 9 is equipped with, filter ante-chamber 9 and melt charging aperture 1 communicate, and filter back cavity 10 and melt discharging opening 11 communicate.

As preferably, described filter includes filter screen draw-gear 16, and filter screen draw-gear 16 includes roller A25 and roller B26, is installed in the interior outside of filter screen 8, and roller A25 contacts with the interior side roll of filter screen 8, and roller B26 contacts with the outer side roll of filter screen 8.

As preferably, described filter includes filter screen draw-gear 16, and filter screen draw-gear 16 includes roller 32 and brush roll 31, is installed in the interior outside of filter screen 8, and roller 32 contacts with the interior side roll of filter screen 8, and brush roll 31 contacts with the outer side roll of filter screen 8.

As preferably, described contaminant removal device 14 is the high pressure air knife, and the high pressure air knife is installed in the inboard of filter screen 8, and filter screen 8 outsides at high pressure air knife position communicate with impurity material outlet 15.

As preferably, described contaminant removal device 14 is vibrator 33, and vibrator 33 is installed in the inboard of filter screen 8, and filter screen 8 outsides at vibrator 33 positions communicate with impurity material outlet 15.

As preferably, described contaminant removal device 14 is brush roll 24, and brush roll 24 is installed in the outside of filter screen 8, and brush roll 24 bottoms communicate with impurity material outlet 15.

As preferably, described contaminant removal device 14 is perching knife 42, and perching knife 42 is installed in the outside of filter screen 8, and perching knife 42 bottoms communicate with impurity material outlet 15.

As preferably, described back sealing device 12 includes regulating block 21, set screw 22 and cooler 23, and cooler 23 is installed in the rear portion of regulating block 21.

The beneficial effects of the utility model: design has related device and structures such as filter screen 8 and contaminant removal device 14 in the plastic extruder filter; filter screen 8 is the tubular structure that connects from beginning to end; under the kinetic potential of melt extrusion promotes or under draw-gear 16 tractions; filter screen 8 is slowly mobile along the outer round surface of inner ring 3; the filter screen part that has impurity when the work of filter ante-chamber 9 places is moved cause contaminant removal device 14 places with contaminant removal; filter screen behind removal of contamination slowly is moved back into the 9 places work of filter ante-chamber along the outer round surface of inner ring 3 again; this slow movement; melt filtration work and filter rear impurity removing work are carried out in circulation; thereby not needing often to shut down carries out the replacing of filter screen; not only save the plenty of time; increase work efficiency; save material, save power consumption, also greatly alleviate working strength of workers.

Description of drawings

Fig. 1 is the filter structure schematic diagram of the utility model device embodiment.

Fig. 2 is another filter structure schematic diagram of the utility model device embodiment.

Fig. 3 is another filter structure schematic diagram of the utility model device embodiment.

Fig. 4 is another filter structure schematic diagram of the utility model device embodiment.

Fig. 5 is the structural representation of an embodiment of the utility model device

Fig. 6 is the structural representation of another embodiment of the utility model device

The specific embodiment

Further describe embodiment below in conjunction with accompanying drawing

Be the structural representation of an embodiment of the utility model device with reference to Fig. 1: Fig. 1,1-melt charging aperture, the 2-outer ring, the 3-inner ring, the 4-porous plate, 5-filter back plate, the 6-chassis, the 7-cover plate, the 8-filter screen, 9-filters ante-chamber, 10-filters back cavity, 11-melt discharging opening, sealing device behind the 12-, the 13-heater, 14-contaminant removal device, the outlet of 15-impurity material, the 16-draw-gear, sealing device before the 17-, during present embodiment work, the plastic extruder melt extrusion enters filter ante-chamber 9 from the melt charging aperture 1 of this filter with tangential direction, melt has kinetic potential to be promoted filter screen 8 and moves along the smooth outer surface of inner ring 3, when melt arrives porous plate 4 positions, pass the hole on filter screen 8 and the porous plate 4, enter filter back cavity 10, impurity in the melt is filtered, stay impurity at filter screen 8 outer surfaces, melt after filtering enters filter back cavity 10 and goes out from melt discharging opening 11 then that plastic extruder is latter half of to be continued to extrude or to directly to the die head moulding, filter screen 8 is the cylinder-like structure that connects from beginning to end, smooth outer round surface along inner ring 3 is slowly mobile, the filter screen part that has impurity through after sealing device 12 arrive contaminant removal devices 14 positions, remover 14 will be attached to the Impurity removal of filter screen 8 outer surfaces, carry out the contaminant removal better effects if to contaminant removal device 14 again after heater via 13 heating, impurity reclaims after impurity material outlet 15, filter screen part after removing impurity continues to move along the outer round surface of inner ring 3, get back to filter ante-chamber 9 through preceding sealing device 17, enter and recycle, constantly recycling of this filter screen, Bu Xu is Yaoed the numerous replacing filter screen of Frequency, up to filter screen 8 damaged just replacings, not only save the plenty of time, increase work efficiency, save material, saves energy also greatly alleviates working strength of workers.

With reference to Fig. 2: the 21-regulating block, the 22-set screw, the 23-cooler, the 24-brush roll, 25-roller A, 26-roller B, present embodiment and first embodiment difference are: the shuttling movement of filter screen is to be undertaken by roller A25 and roller B26 traction, under the drive of motor, roller A25 contacts with the interior side roll of filter screen 8, roller B26 contacts with the outer side roll of filter screen 8, make filter screen 8 make circular motion along the outer round surface of inner ring 3, during work, the plastic extruder melt extrusion enters filter ante-chamber 9 from the melt charging aperture 1 of this filter, when melt passes porous plate 4 on filter screen 8 and the inner ring 3, impurity in the melt is filtered, stay impurity at filter screen 8 outer surfaces, filter screen 8 passes back sealing device 12 through brush roll 24 removals of contamination together with the impurity that is attached to filter screen 8 outer surfaces, filter screen 8 after removing impurity continues to move along the outer round surface of inner ring 3, getting back to filter ante-chamber 9 through preceding sealing device 17 enters and recycles, back sealing device 12 includes regulating block 21, set screw 22 and cooler 23, cooler 23 is installed in the rear portion of regulating block 21, this sealing device reliable operation, good sealing effect, this traction by roller A25 and roller B26 constantly recycles the numerous replacing filter screen of Bu Xu Frequency, up to the damaged just replacing of filter screen, not only save the plenty of time, increase work efficiency, save material, saves energy also greatly alleviates working strength of workers.

With reference to Fig. 3: the 31-roller, the 32-brush roll, the 33-vibrator, present embodiment and last two embodiment differences are: the shuttling movement of filter screen 8 is to be undertaken by roller 32 and brush roll 31 tractions, under the drive of motor, brush roll 31 contacts with the outer side roll of filter screen 8, roller 32 contacts with the interior side roll of filter screen 8, brush roll 31 plays a part to remove filter screen 8 outer surface impurity on the one hand, cooperate traction filter screen 8 to recycle simultaneously with roller 32, removal of contamination adopts vibrator 33 better effects if, thisly constantly recycle the numerous replacing filter screen of Bu Xu Frequency by roller 32 and brush roll 31 traction filter screens 8, up to the damaged just replacing of filter screen, not only save the plenty of time, increase work efficiency, save material, saves energy also greatly alleviates working strength of workers.

With reference to Fig. 4: 41-cooler, 42-perching knife, present embodiment and last three embodiment differences are: the removing of filter screen 8 outer surface impurity is finished by perching knife, be that filter screen 8 is when inner ring 3 shuttling movements of tractive force effect lower edge, having impurity and a small amount of melt from back filter screen 8 outer surfaces that come out of sealing device enters perching knife 42 positions and roots out impurity by perching knife 42 and continue to recycle, the impurity material reclaims after impurity material outlet 15, enters perching knife 42 positions again and root out the impurity effect with better by perching knife 42 after cooler 41 coolings.

With reference to Fig. 5: 101-barrel, 102-screw rod, 103-filter, 104-die head, screw rod 102 is installed in the barrel 101, filter 103 is installed between barrel 101 and the die head 104, after plastifying and be expressed into filter 103 and filtered by screw rod 102, plastic raw materials again to 104 extrusion moldings, of the present utility modelly is characterised in that the screen pack in the described filter 103 can not use for a long time and need change in barrel 101.

With reference to Fig. 6: the 101-barrel, the 102-screw rod, the 103-filter, the 104-die head, screw rod 102 is installed in the barrel 101, filter 103 is installed in barrel 101 middle parts, plastic raw materials plastifies in barrel 101 first halfs and is extruded from barrel 101 centre exits to filter 103 by screw rod 102, plastic melt continues to be extruded through the die head exit moulding by screw rod 102 to barrel 101 centre inlet after filtering through filter 103 again, of the present utility modelly be characterised in that the screen pack in the described filter 103 can not use for a long time and need change, this filter 103 is installed in barrel 101 middle parts and melt is filtered is specially adapted to impure many plastic reclaimed material, and its energy-saving effect is remarkable.

The described contaminant removal device of above-mentioned a plurality of embodiment has multiple structural shape; be not described in addition; be to adopt a kind of contaminant removal device or adopt the plurality of impurities remover all to belong to this patent protection domain simultaneously; equally; filter screen in above-described embodiment advances or traction also has multiple structural shape, is to adopt one or more also all to belong to this patent protection domain.

The beneficial effects of the utility model: do not need often to shut down during plastic extruder work to carry out the replacing of filter screen, not draping is for a long time not only saved the plenty of time, increases work efficiency, and saves material, and energy efficient also greatly alleviates working strength of workers.

Claims

1. the plastic extruder of not draping for a long time, include barrel (101), screw rod (102), filter (103) and die head (104), screw rod (102) is installed in the barrel (101), filter (103) is installed between barrel (101) and the die head (104) or is installed in barrel (101) middle part, it is characterized in that: described filter includes melt charging aperture (1), outer ring (2), inner ring (3), porous plate (4), filter back plate (5), chassis (6), cover plate (7), filter screen (8), filter ante-chamber (9), filter back cavity (10), melt discharging opening (11), back sealing device (12), contaminant removal device (14), the outlet of impurity material (15) and preceding sealing device (17), described filter screen (8) is the cylinder-like structure that connects from beginning to end, be installed in the outer round surface of inner ring (3), design has filter ante-chamber (9) between outer ring (2) and the filter screen (8), design has filter back cavity (10) between inner ring (3) and the filter back plate (5), inner ring (3) design between filter ante-chamber (9) and filter back cavity (10) has the porous plate (4) in some holes, two of filter ante-chamber (9) is equipped with preceding sealing device (17) and back sealing device (12), filter ante-chamber (9) and melt charging aperture (1) communicate, and filter back cavity (10) and melt discharging opening (11) communicate.

2. according to the described plastic extruder of not draping for a long time of claim 1, it is characterized in that: described filter includes filter screen draw-gear (16), filter screen draw-gear (16) includes roller A (25) and roller B (26), be installed in the interior outside of filter screen (8), roller A (25) contacts with the interior side roll of filter screen (8), and roller B (26) contacts with the outer side roll of filter screen (8).

3. according to the described plastic extruder of not draping for a long time of claim 1, it is characterized in that: described filter includes filter screen draw-gear (16), filter screen draw-gear (16) includes roller (32) and brush roll (31), be installed in the interior outside of filter screen (8), roller (32) contacts with the interior side roll of filter screen (8), and brush roll (31) contacts with the outer side roll of filter screen (8).

4. according to the described plastic extruder of not draping for a long time of claim 1, it is characterized in that: described contaminant removal device (14) is the high pressure air knife, the high pressure air knife is installed in the inboard of filter screen (8), and filter screen (8) outside at high pressure air knife position communicates with impurity material outlet (15).

5. according to the described plastic extruder of not draping for a long time of claim 1, it is characterized in that: described contaminant removal device (14) is vibrator (33), vibrator (33) is installed in the inboard of filter screen (8), and filter screen (8) outside at vibrator (33) position communicates with impurity material outlet (15).

6. according to the described plastic extruder of not draping for a long time of claim 1, it is characterized in that: described contaminant removal device (14) is brush roll (24), and brush roll (24) is installed in the outside of filter screen (8), and brush roll (24) bottom communicates with impurity material outlet (15).

7. according to the described plastic extruder of not draping for a long time of claim 1, it is characterized in that: described contaminant removal device (14) is perching knife (42), and perching knife (42) is installed in the outside of filter screen (8), and perching knife (42) bottom communicates with impurity material outlet (15).

8. according to the described plastic extruder of not draping for a long time of claim 1, it is characterized in that: described back sealing device (12) includes regulating block (21), set screw (22) and cooler (23), and cooler (23) is installed in the rear portion of regulating block (21).