EVA film extruder with feed adjusting function
An extruder and functional technology, applied in the field of EVA film extruder, can solve the problems of not being suitable for large changes, unable to adapt to fluctuations in molten resin production, and small changes in material supply.
Active Publication Date: 2014-02-19
江苏彭飞自动化机械有限公司
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Problems solved by technology
[0004] The applicant found that feeding the extruder through the hopper mainly feeds the extruder through the gravity of the material in the hopper, and the fluctuation of the feeding is small, so it is not suitable for a large change in the function of feeding the extruder in a short period of time. , cannot adapt to the requirements of fluctuations in molten resin production
Method used
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Embodiment
[0015] The EVA film extruder with feed adjustment function of the present embodiment, as figure 1 As shown, it includes a main cylinder 1, an extrusion screw disposed in the main cylinder 1 and a drive motor 2 for driving the extrusion screw to rotate. The feeding end of the main cylinder 1 is provided with a feed hopper 3 , the bottom of the feed hopper 3 is shaped as a cone with the top of the cone downward and is shaped with an opening at the top of the cone, and the discharge end of the main cylinder 1 is provided with a die 4 .
[0016] The opening of the supply hopper 3 is provided with an adjustment plate 5, the outlet of the die head 4 is provided with a flow sensor 6 for generating material flow information, and the outside of the supply hopper 3 is provided with an adjustment motor 7 for driving the adjustment plate 5 to rotate after receiving the material flow information . The regulating plate 5 and the side wall of the supply hopper 3 form a material passage 5-1....
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The invention relates to an EVA film extruder with feed adjusting function, and belongs to the technical field of extrusion molding of plastic. The EVA film extruder comprises a main barrel, an extrusion screw arranged in the main barrel and a driving motor for driving the extrusion screw to rotate; the charging end of the main barrel is provided with a feed hopper; the bottom of the feed hopper is shaped of a cone with a downward cone node, and is provided with an opening at the cone node; the discharging end of the main barrel is provided with a mold head, the opening of the feed hopper is provided with an adjusting plate; the opening of the mold head is provided with a flow sensor for generating material flow information; the outside of the feed hopper is provided with an adjusting motor for driving the adjusting plate to rotate after the material flow information is received; and a material passing channel is formed by the adjusting plate and the side wall of the feed hopper. The EVA film extruder has the advantages of being capable of substantially changing extruder feed in a short time and being adaptive to production fluctuation requirement on fusion resin.
Description
technical field [0001] The invention relates to an EVA film extruder, which belongs to the technical field of extrusion molding of plastics. Background technique [0002] At present, the encapsulation of solar cells generally adopts ethylene-vinyl acetate copolymer (EVA) film to encapsulate the solar cells, and glues them together with upper and lower protective materials to form a solar cell module. EVA is a typical random polymer compound. It has good wettability when heated and melted, and good flexibility, stress crack resistance and bonding performance when cooled and solidified. It is an ideal energy-saving material. materials for solar cell packaging. [0003] EVA film forming adopts extrusion molding process. The whole production line usually includes mixing equipment, extrusion equipment, lamination device, trimming unit and winding equipment to complete mixing, feeding, extrusion, forming, trimming, Winding process. Among them, the extrusion equipment is the mai...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B29C47/10B29C47/92B29C48/08B29C48/92
CPCB29C48/92B29C48/285B29C48/286B29C2948/92209B29C2948/92161B29C2948/92895B29C2948/92609B29C2948/92409B29C2948/92828B29K2023/083B29L2007/008B29C48/08B29C2948/92104
Inventor 顾正忠陈忠斌
Owner 江苏彭飞自动化机械有限公司