The process units that is used for BOPP masterbatch additive
(1) technical field
The utility model relates to field of plastics processing, is specifically related to a kind of production and processing device of BOPP masterbatch additive.
(2) background technology
Along with the continuous development of flexible package industry, ordinary packing has satisfied not the people's life requirement, and the paper class Soft Roll market demand is growing.The BOPP film is wherein a kind of functional plastic packaging material with superperformance; Kind of series of products surplus the antifogging film that development forms, heat-sealing film, ultra-thin high matt film, torsion film, the label film etc. ten have been widely used in the packaging industries such as food, clothes and handicraft.BOPP masterbatch additive is in process, and is generally all composite through flowing freely particle by polyphosphazene polymer alkene alpha-olefin, finally makes mixing polymer, is the top layer additive of producing the BOPP function film.Because the difference of the raw material of types of functionality sexupara feed additives is bigger; And it is all variant to the melting temperature in the process of manufacture, copolyreaction duration etc.; Particularly the production technology of masterbatch additive and masterbatch has bigger difference, and general masterbatch process units can not adapt to the production and the processing of some special masterbatch additives.
(3) summary of the invention
The utility model provides a kind of processing unit (plant) of suitable BOPP film masterbatch Additive Production, and its main technical schemes is following:
A kind of process units that is used for BOPP masterbatch additive; Mainly comprise feeding hopper, scroll feeder, double screw extruder, bosh, pelleter and vibratory sieve; Be provided with a deironing apparatus between said feeding hopper and the scroll feeder; Scroll feeder can feed the raw making materials of masterbatch additive to the head chamber of double screw extruder through feed opening by the stability of flow ground of setting, and raw material is extruded and passed through to draw tie rod from the afterbody of double screw extruder after the melting and copolyreaction of double screw extruder; Make many group strip material get into immersion cooling in the bosh; The strip material gets into the pelleter pelletizing after cooling and drying, be discharged in the vibratory sieve by pelleter subsequently and sieve; The finished particle material that granularity meets directly packs through feed opening, and the powder-material that screens out out then carries out recycling through the discharging opening of vibratory sieve bottom.
As preferably, the thermal treatment zone of the described double screw extruder of the utility model is provided with 8 groups, and adopts thermal resistance conduction mode of heating.
As preferably, the utility model also is provided with a screen pack at the tail end of double screw extruder, can prevent to extrude without the raw material or the foreign matter of melting fully.
As preferably, the driving motor of the described scroll feeder of the utility model adopts buncher, can carry out speed regulation according to the flow size of feeding material.
The beneficial effect of the utility model is embodied in: be provided with a deironing apparatus between feeding hopper and the scroll feeder, can the metallic foreign body in the raw material be removed, prevent to cause mechanical destruction in the metallic foreign body entering double screw extruder; Adopt the feeding manner of adjustable-speed, can regulate the feed quantity of raw material easily, guarantee the melting and the copolyreaction effect of raw material according to the difference of production technology; The screen pack that the double screw extruder tail end is provided with can prevent to extrude without the raw material or the foreign matter of melting fully, guarantees the reliability of melting material traction and tie rod.
(4) description of drawings
Fig. 1 is the structural representation of the utility model
(5) specific embodiment
Shown in accompanying drawing; The process units of a kind of BOPP of being used for masterbatch additive that the utility model relates to; Mainly comprise feeding hopper 1, scroll feeder 3, double screw extruder 5, bosh 7, pelleter 8 and vibratory sieve 9; Be provided with a deironing apparatus 2 between feeding hopper 1 and the scroll feeder 3, deironing apparatus 2 can be removed the metallic foreign body in the raw material, prevents to cause mechanical destruction in the metallic foreign body entering double screw extruder 5; The driving motor of scroll feeder 3 adopts buncher, can the raw making materials of masterbatch additive be fed to the head chamber of double screw extruder 5 through feed opening 4 by the stability of flow ground of setting; The thermal treatment zone of double screw extruder 5 is provided with 8 groups; And adopt thermal resistance to conduct mode of heating; Raw material is after the melting and copolyreaction of double screw extruder 5; Extrude and through the traction tie rod, the tail end of double screw extruder 5 also is provided with a screen pack 6 from the afterbody of double screw extruder 5, can prevent to extrude without the raw material or the foreign matter of fully melting; Many groups strip material through double screw extruder 5 is extruded carries out the immersion water-cooled but through drawing to get in the bosh 7; The strip material is after cooling and drying; Get into pelleter 8 pelletizings; Be discharged in the vibratory sieve 9 by pelleter 8 subsequently and sieve, the finished particle material that granularity meets directly packs through feed opening 10, and the powder-material that screens out out then carries out recycling through the discharging opening 11 of vibratory sieve 9 bottoms.