CN203141824U

CN203141824U - Plastic extrusion film-pressing apparatus for production of regenerated plastics

Info

Publication number: CN203141824U
Application number: CN2012206937870U
Authority: CN
Inventors: 吕英炜
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-09
Filing date: 2012-12-09
Publication date: 2013-08-21
Anticipated expiration: 2022-12-09

Abstract

The utility model discloses a plastic extrusion film-pressing apparatus for production of regenerated plastics, which comprises an extrusion device, and a fixing device disposed below the extrusion device, wherein the extrusion device comprises a feed inlet, a screw-transmission heating assembly disposed below the feed inlet, and a filter screen and a die head disposed at the tail end of the screw-transmission heating assembly; the apparatus is characterized in that the cross section of the filter screen in the extrusion device is annular.

Description

Can produce the plastics of regenerated plastics and extrude pressed film equipment

Technical field

The utility model relates to a kind of plastics of producing regenerated plastics and extrudes pressed film equipment.

Background technology

At present, the plastic sheeting of common employing is extruded pressed film equipment on the market, its course of work is at first granular or powdered plastic to be joined in the hopper, granular or powdered plastic is under the effect of the extruder screw of rotation, granular or powdered plastic is forwards carried by the helicla flute along screw rod, in this process, granular or powdered plastic is constantly accepted the outer heating of barrel, the screw rod rotation, under the immixtures such as compacting, plastics after the heating can filter out the impurity that is present in after the heating in the plastics through a screen pack in extruder, screen pack is that a cross section is for circular, be installed in the tail end of extruder discharging, plastic melt after the filtration is by behind the die head, thereby obtain to have consistent with die head discharging cross section, and the uniform plastic melt with flowable, this plastic melt is shaped into certain thickness plastic membrane product by the calibrator that is arranged on the bottom, because this moment, the plastics temperature was very high, after after a while, iron roll on the calibrator and rubber roll temperature will raise fast, cooling fluid is then cooled off iron roll or rubber roll by the iron roll on the calibrator or rubber roll axle center, thereby be shaped into certain thickness plastic membrane product after making its plastic products cooling hardening, after excising the imperfect or unnecessary part of two edge formings through trimming device according to instructions for use again, again its surface is added Electrostatic Treatment, so that the plastic sheeting surface is when silk-screen or printing, printing ink can well stick on the film surface, and end product passes through material collecting device again with product coiling rolling.

The problem that the plastics of the regenerated plastics of mentioning in the background technology produced are extruded the pressed film equipment existence is, because the thickness of institute's made membrane all is very thin, and screen pack adopts cylindrical screen pack, because when adopting the cross section of full circle, the reason of plastic melt self gravitation, in the same situation of extruding flow, plastic melt since the cross section when the screen pack, real right increase the in cross section, make the flow velocity of melt reduce rapidly, the problem of bringing like this is, the plastic melt major part all flows away toward the screen pack bottom, make very low of utilization rate on screen pack top, it is very undesirable that filter effect then becomes, as the raw material of fruit product under the impure situation of purity, it is obvious to be easy to occur the final products surface impurity, product thickness is inhomogeneous, forming defects such as moulding is imperfect appear easily, and the number of times of changing screen pack is also many, production efficiency is very low, the poor stability of the product of producing, therefore on choices of raw materials, on raw material selection, then have higher requirement in the background technology, can only adopt brand-new purity can mold film article than higher raw material, and can not use again plastic material after reclaiming, under the background of current resource anxiety, not only cause the waste to resource, but also increased production cost of products.

The utility model content

The utility model discloses the plastics that can produce regenerated plastics and extrude pressed film equipment, be used for solving the defective that prior art can not be used the plastics-production film article after reclaiming again, thus the problem that the resource loss that brings is big, production cost is high.

To achieve these goals, the utility model provides following technical scheme:

Can produce the plastics of regenerated plastics and extrude pressed film equipment, comprise extrusion device and be arranged on the calibrator of extrusion device bottom, wherein extrusion device comprises charging aperture and is arranged on the screw rod transmission heating component of charging aperture bottom and is arranged on screen pack, the die head that screw rod transmits the heating component tail end, and the cross section of the screen pack in the described extrusion device is annular.

Described calibrator is made up of iron roll and rubber roll.

Described calibrator is arranged on the bottom of die head.

The discharging gap of die head discharging place on the described extrusion device is between the 0.5mm-2mm.

The utility model compared with prior art, the screen pack of mentioning in the utility model is arranged on the periphery of screw rod, the cross section is not a complete full circle cross section, but the cross section of an annular, the advantage of She Zhiing is like this, under equal screen pack length situation, saved the material of screen pack greatly, and when adopting the ring section, the cross section of plastic melt in flow process remained unchanged, therefore the flow velocity of the plastic melt by screen pack is constant, the utilization rate of whole screen pack will improve, significantly reduce the replacing number of times of screen pack, not only saved the cost of screen pack, also improved the purity of plastic melt, because changing number of times reduces, not only improve the stability of the product in producing, and improved production efficiency, greatly reduced cost.

Description of drawings

Fig. 1: the plastics of the regenerated plastics produced of the utility model embodiment are extruded the pressed film equipment structural representation;

Fig. 2: the schematic diagram of extrusion device

Fig. 3: cooling device schematic diagram

Among the figure: the 1-extrusion device, the 2-calibrator, the 3-cooling device, the 4-compressed water generation apparatus, 5-adds electrostatic equipment, 6-trimming device, 7-material collecting device, 8-charging aperture, 9-screw rod transmission heating component, 10-die head, 11-iron roll, 12-rubber roll, 13-screen pack

The specific embodiment

Below in conjunction with accompanying drawing concrete enforcement of the present utility model is further described:

With reference to accompanying drawing 1-3, can produce the plastics of regenerated plastics and extrude pressed film equipment, comprise extrusion device 1 and be arranged on the calibrator 2 of extrusion device 1 bottom, wherein extrusion device 1 comprises charging aperture 8 and is arranged on the screw rod transmission heating component 9 of charging aperture 8 bottoms and is arranged on screen pack 13, the die head 10 that screw rod transmits heating component 9 tail ends, and the cross section of the screen pack 13 in the described extrusion device 1 is annular.

Described calibrator 2 is made up of iron roll 11 and rubber roll 12.

Described calibrator 2 is arranged on the bottom of die head 10.

The discharging gap of discharging place of the die head 10 on the described extrusion device 1 is between the 0.5mm-2mm.

In actual applications, what adopted in screen pack 13 cross sections is the cross section of annular, the area of section that so just can guarantee screen pack 13 equates with the area that flows of front end plastic melt, when front end plastic melt process screen pack 13 under the effect of the extruder screw of rotation, plastic melt finally flows out die head 10, guarantee in the whole process that its flow velocity is evenly constant, so just, can better utilize whole screen pack 13 to come the filtering plastic melt, and can guarantee the product stability of production, and significantly reduced the replacing number of times of screen pack 13, processing and production for more convenient circular filter net 13, the screen pack 13 of annular can adopt a rectangular screen pack 13 to be wound on the center-pole of screw rod, Jia Gong benefit is like this, the processing cost of complete circular filter net 13 and the difficulty of processing are much larger than rectangular screen pack 13 of processing, therefore in actual applications, the rectangular screen pack 13 of how direct employing, be wound on then on the center-pole of screw rod, thereby form the cross section of an annular, seem more actual like this.

Certainly; the structure composition that the plastics of producing regenerated plastics of the present utility model are extruded pressed film equipment is not limited to above-mentioned embodiment; do apparent change according to the prompting of above-described embodiment, and other every change that does not break away from the utility model essence all should be included within the scope of the utility model protection.

Claims

1. the plastics that can produce regenerated plastics are extruded pressed film equipment, comprise extrusion device (1) and be arranged on the calibrator (2) of extrusion device (1) bottom, wherein extrusion device (1) comprises charging aperture (8) and is arranged on the screw rod transmission heating component (9) of charging aperture (8) bottom and is arranged on screen pack (13), the die head (10) that screw rod transmits heating component (9) tail end, and it is characterized in that: the cross section of the screen pack (13) in the described extrusion device (1) is annular.

2. the plastics of producing regenerated plastics according to claim 1 are extruded pressed film equipment, it is characterized in that: described calibrator (2) is made up of iron roll (11) and rubber roll (12).

3. the plastics of producing regenerated plastics according to claim 1 are extruded pressed film equipment, it is characterized in that: described calibrator (2) is arranged on the bottom of die head (10).

4. the plastics of producing regenerated plastics according to claim 1 are extruded pressed film equipment, it is characterized in that: the discharging gap of die head (10) discharging place on the described extrusion device (1) is between the 0.5mm-2mm.