CN202911126U

CN202911126U - Screen-change-free plastic extruder

Info

Publication number: CN202911126U
Application number: CN2012206746093U
Authority: CN
Inventors: 黄美昌; 黄加宁; 王喜明
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-25
Filing date: 2012-11-25
Publication date: 2013-05-01
Anticipated expiration: 2022-11-25

Abstract

The utility model discloses a screen-change-free plastic extruder comprising a charging barrel, a screw rod, a filter and a die head, wherein the filter comprises a melt feeding hole, an outer ring, a perforated plate ring, an inner ring, a filter screen, a before-filtering chamber, an after-filtering chamber, an impurity remover, a base plate, a main shaft, a motor and an upper rotating plate; the outer ring, the perforated plate ring and the inner ring are integrated; the filter screen is in a cylindrical structure with the head and the tail which are connected together, is mounted on the outer ring surface of the perforated plate ring in a fastening manner, and is integrated with the upper rotating plate and the main shaft; the filter and the perforated plate ring are driven by the motor to do circling motion so that when working at the before-filtering chamber, a part (with impurities) of the filter screen partially moves to the impurity remover to remove the impurities; then the filter screen without the impurities and the perforated plate ring return to the before-filtering chamber for work; and the process is carried out in a circulating manner. The screen-change-free plastic extruder has the advantages that the filter screen does not need to be replaced by stopping frequently, and a large amount of time is saved, the working efficiency is improved, a raw material is saved, the electricity is saved and the labor intensity of a worker is reduced.

Description

Not draping plastic extruder

Technical field

The utility model relates to the plastics machinery field, especially not draping plastic extruder.

Technical background

Make both at home and abroad at present; sell; the plastic flat filament drawing machine group of using; plastic round wire wire drawing unit; the plastic extrusion unit of filming; the plastic membrane blowing unit; main frame-plastic extruder that plastic calender group and nonwoven production unit etc. adopt; raw material in plastic extruder, melt extrude in the die head forming process essential first after filtration; all structures of prior art; all must often change filter screen, because impurity is many, it is more frequent to change filter screen when particularly using the plastics recovery material; not only waste a large amount of metal screens; draping labour intensity is large, also needs often to shut down to change filter screen, has a strong impact on normal production.

The utility model content

The purpose of this utility model is to overcome defects, not draping plastic extruder 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, porous plate circle 3, inner ring 4, filter screen 5, filter ante-chamber 6, filter back cavity 7, melt discharging opening 8, sealing device 9 behind the filter ante-chamber, sealing device 10 behind the filter back cavity, impurity material outlet 13, impurity remover 14, sealing device 15 before the filter back cavity, sealing device 16 before the filter ante-chamber, chassis 21, main shaft 22, motor 23, upper swivel plate 24, cover plate 25, described outer ring 2, porous plate circle 3 and inner ring 4 are integrated or are fastened as a whole, described filter screen 5 is the cylinder-like structure that connects from beginning to end, be installed in the outer round surface of porous plate circle 3 and tighten together with porous plate circle 3, porous plate circle 3 is fastened as a whole with upper swivel plate 24, upper swivel plate 24 is fastened on the main shaft 22, main shaft 22 is connected with motor 23, be designed with filter ante-chamber 6 between outer ring 2 and the filter screen 5, be designed with filter back cavity 7 between porous plate circle 3 and the inner ring 4, two of filter ante-chamber 6 is equipped with front sealing device 16 and rear sealing device 9, two of filter back cavity 7 also is equipped with front sealing device 15 and rear sealing device 10, filter ante-chamber 6 and melt charging aperture 1 communicate, and filter back cavity 7 and melt discharging opening 8 communicate.

The beneficial effects of the utility model: owing to be designed with related device and the structures such as filter screen 5 and impurity remover 14; filter screen 5 is the tubular structure that connects from beginning to end; on the fastening excircle that is installed in porous plate circle 3; under the drive of motor; porous plate circle 3 is made circular motion; filter screen part with impurity is moved cause impurity remover 14 places impurity is removed; filter screen behind removal of contamination and porous plate circle 3 are got back to the 6 places work of filter ante-chamber; thisly loop melt filtration work and filter rear impurity removing work; 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 workman's labour intensity.

Description of drawings

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

Fig. 2 is the filter structure front elevational schematic of an embodiment of the utility model device.

Fig. 3 is the structural representation of an embodiment of the utility model device.

Fig. 4 is the structural representation of another embodiment of the utility model device.

The specific embodiment

Further describe embodiment below in conjunction with accompanying drawing

The filter structure schematic diagram of an embodiment of the utility model device with reference to Fig. 1: Fig. 1, in conjunction with Fig. 2,1-melt charging aperture, the 2-outer ring, 3-porous plate circle, the 4-inner ring, the 5-filter screen, 6-filters ante-chamber, 7-filters back cavity, 8-melt discharging opening, sealing device behind the 9-filter ante-chamber, sealing device behind the 10-filter back cavity, the 11-heater, the outlet of 13-impurity material, 14-impurity remover, sealing device before the 15-filter back cavity, sealing device before the 16-filter ante-chamber, the 21-chassis, the 22-main shaft, the 23-motor, the upper swivel plate of 24-, the 25-cover plate, described outer ring 2, porous plate circle 3 and inner ring 4 are integrated or are fastened as a whole, described filter screen 5 is the cylinder-like structure that connects from beginning to end, be installed in the outer round surface of porous plate circle 3 and tighten together with porous plate circle 3, porous plate circle 3 is fastened as a whole with upper swivel plate 24, upper swivel plate 24 is fastened on the main shaft 22, main shaft 22 is connected with motor 23, during present embodiment work, motor 23 drives main shaft 22 together with upper swivel plate 24, porous plate circle 3 and filter screen 5 rotate together, the plastic extruder melt extrusion enters filter ante-chamber 6 from the melt charging aperture 1 of this filter, and by filter screen 5 and porous plate circle 3 enter the filter back cavity 10, impurity in the melt is filtered, stay impurity at filter screen 5 outer surfaces, melt after filtering enters filter back cavity 10 and goes out from melt discharging opening 8 then that plastic extruder is latter half of to be continued to extrude or directly go out moulding to die head, filter screen part with impurity arrives impurity remover 14 positions with porous plate circle 3 sealing device 10 behind sealing device 9 behind the filter ante-chamber and filter back cavity, remover 14 will be attached to the Impurity removal of filter screen 5 outer surfaces, carry out impurity to impurity remover 14 again after heater via 11 heating and remove better effects if, impurity reclaims after impurity material outlet 13, filter screen and porous plate circle 3 after removing impurity are rotated further, by sealing device 15 before sealing device 16 before the filter ante-chamber and the filter back cavity, get back to filter ante-chamber 6, enter and recycle, constantly recycling of this filter screen, Bu Xu is Yaoed the numerous replacing filter screen of Frequency, not only save the plenty of time, increase work efficiency, save material, saves energy also greatly alleviates workman's labour intensity.

With reference to Fig. 3: 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, 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 barrel 101 interior plasticizings are expressed into filter 103 and filter by screw rod 102 after.

With reference to Fig. 4: 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 recycled plastics polymers, and its energy-saving effect is remarkable.

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, for a long time not draping is not only saved the plenty of time, increases work efficiency, and saves material, and energy efficient also greatly alleviates workman's labour intensity.

Claims

1. not draping plastic extruder, 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), porous plate circle (3), inner ring (4), filter screen (5), filter ante-chamber (6), filter back cavity (7), melt discharging opening (8), sealing device (9) behind the filter ante-chamber, sealing device (10) behind the filter back cavity, impurity material outlet (13), impurity remover (14), sealing device (16) before sealing device (15) and the filter ante-chamber before the filter back cavity, chassis (21), main shaft (22), motor (23), upper swivel plate (24), described outer ring (2), porous plate circle (3) and inner ring (4) are integrated or are fastened as a whole, described filter screen (5) is the cylinder-like structure that connects from beginning to end, the fastening outer round surface that is installed in porous plate circle (3), porous plate circle (3) is fastened as a whole with upper swivel plate (24), upper swivel plate (24) is fastened on the main shaft (22), main shaft (22) is connected with motor (23), be designed with filter ante-chamber (6) between outer ring (2) and the filter screen (5), be designed with filter back cavity (7) between porous plate circle (3) and the inner ring (4), two of filter ante-chamber (6) is equipped with front sealing device (16) and rear sealing device (9), two of filter back cavity (7) also is equipped with front sealing device (15) and rear sealing device (10), filter ante-chamber (6) and melt charging aperture (1) communicate, and filter back cavity (7) and melt discharging opening (8) communicate.