CN204869580U

CN204869580U - Plastic extruder

Info

Publication number: CN204869580U
Application number: CN201520489692.0U
Authority: CN
Inventors: 于建
Original assignee: Nantong Leiheng Plastic Products Co Ltd
Current assignee: Nantong Leiheng Plastic Products Co Ltd
Priority date: 2015-07-06
Filing date: 2015-07-06
Publication date: 2015-12-16
Anticipated expiration: 2025-07-06

Abstract

The utility model discloses a plastic extruder, includes the organism, the organism top sets up the feed cylinder to an organism side -mounting gear pump, gear pump inside sets up ball bearing and ball bearing is connected with the screw rod, screw rod one end is equipped with rotary joint, ball bearing is located between feeder hopper and the gear reduction box to feeder hopper top installation motor, gear reduction box bottom installation primary motor and primary motor are connected with the bifurcation band pulley, primary motor one side sets up the reducing gear box, the screw rod surface adhesion has condenser tube to the winding is on the screw rod, set up the heater on the feed cylinder inner wall to bolted connection to flow distribution plate is passed through to one end, this kind of plastic extruder simple structure, reliable and stable, the energy consumption is low, and production efficiency is high, significantly reduced wearing and tearing between feed cylinder and the screw rod, convenient operation, through the optimal design of details part, the defect of having improved extruder in the past is not enough, is fit for using widely.

Description

A kind of plastic extruder

Technical field

The utility model relates to extruder, and be a kind of reliable and stable, energy consumption is low, and production efficiency is high, greatly reduces the wearing and tearing between barrel and screw rod, easy to operate plastic extruder.

Background technology

The working mechanism of screw-type extruder traditional at present relies on screw rod to rotate the pressure and shearing force that produce, material can be made fully to carry out plastifying and Homogeneous phase mixing, by mouth mold forming, so sometimes use an extruder just can complete mixing simultaneously, plasticizing and the series of process such as shaping, thus carry out continuous print production, this production technology belongs to discontinuous production, and material substantially can not fully be stirred and be mixed, in addition this production also needs to plastify in advance, production cost is high, extremely wear and tear excessive, the quality of product is easy to receive impact, not precision yet not high manufactured, the packing of formed product is too low, be difficult to the demand adapting to market, therefore, for the problems referred to above, a kind of plastic extruder is proposed.

Utility model content

Have problems for above-mentioned prior art, the utility model provides a kind of structure simple, reliable and stable, energy consumption is low, the plastic extruder that production efficiency is high, greatly reduces the wearing and tearing between barrel and screw rod, easy to operate, by the optimal design of the part of screw rod, feed hopper and flow distribution plate details, the defect improving extruder is in the past not enough, solves Problems existing in background technology.

For achieving the above object, the technical solution adopted in the utility model is: a kind of plastic extruder, comprises body, it is characterized in that: described body top arranges barrel, and gear pump is installed in body side; Described gear pump inside arranges ball bearing and ball bearing is connected with screw rod; Swivel joint is equipped with in described screw rod one end; Described ball bearing is between feed hopper and gear reduction box, and motor is installed at feed hopper top; Bottom described gear reduction box, main motor is installed and main motor is connected with bifurcation belt wheel; Described main motor side arranges reduction box; Described screw surface is attached with cooling water pipe, and is wrapped on screw rod; Described material tube inner wall arranges heater, and one end is bolted to flow distribution plate.

Further, described screw rod is a kind of separating screw rod setting up a deputy thread in intermediate compression section, and screw rod outer felt is around the spiral helicine cooling water pipe of one.

Further, described feed hopper is a kind of feed hopper with hopper cover, form and dodge gate, and feed hopper is funnel-shaped structure.

Further, described flow distribution plate is the flow distribution plate of a kind of inside with screen pack, and can regulate distance between barrel by bolt.

Further, described screw rod and swivel joint, heater are positioned in same level symmetrical centre.

The beneficial effects of the utility model are: the separating screw rod that this extruder adopts, a deputy thread is set up in compression section, overcome Solid Bed and melt in conventional screw to coexist the shortcoming produced in a screw channel, fused materials is separated as early as possible with non-fusant material, thus facilitate the melting of non-fusant material, efficiency is high, plasticizing efficiency is high, plasticizing quality is good, disintegrate owing to there is no Solid Bed, output fluctuation and temperature fluctuation are all smaller, and it is good to have exhaust performance, low power consumption and other advantages, be widely used, monoblock type barrel easily ensures the higher accuracy of manufacture and assembly precision, assembly work can be simplified, barrel is heated evenly, form is had in the side of hopper, to observe hopper and material loading situation, switching door is arranged at the bottom of hopper, to stop and regulating feeding quantity, lid is added above hopper, prevent dust, moisture and impurity fall into, that temperature of charge is suitable for, ensure plastics all the time can its processing technology lock require temperature range in melting, ensure that extrusion molding is carried out, rectilinear motion is become from original rotary motion during the transition region that the interpolation of screen pack makes stream flow through mouthful between mould and screw head, stop the particle inlet port mould of non-melting, cross elimination metal impurities, improve melt pressure, make product closely knit.

Accompanying drawing explanation

Fig. 1 is the utility model overall structure schematic diagram;

Fig. 2 is the utility model overall structure top view;

In figure: 1, flow distribution plate, 2, screw rod, 3, heater, 4, motor, 5, feed hopper, 6, gear reduction box, 7, swivel joint, 8, ball bearing, 9, bifurcation belt wheel, 10, main motor, 11, reduction box, 12, gear pump, 13, body, 14, cooling water pipe, 15, barrel.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

As shown in Figure 1-2, a kind of plastic extruder, comprises body 13, it is characterized in that: described body 13 top arranges barrel 15, and gear pump 12 is installed in body 13 side; Described gear pump 12 inside arranges ball bearing 8 and ball bearing 8 is connected with screw rod 2; Swivel joint 7 is equipped with in described screw rod 2 one end; Described ball bearing 12 is between feed hopper 5 and gear reduction box 6, and motor 4 is installed at feed hopper 5 top; Bottom described gear reduction box 6, main motor 10 is installed and main motor 10 is connected with bifurcation belt wheel 9; Described main motor 10 side arranges reduction box 11; Described screw rod 2 surface attachment has cooling water pipe 14, and is wrapped on screw rod 2; Described barrel 15 inwall arranges heater 3, and one end is bolted to flow distribution plate 1.

Novel optimisation technique scheme is used: described screw rod 2 is a kind of separating screw rods 2 setting up a deputy thread in intermediate compression section, and screw rod 2 outer felt is around the spiral helicine cooling water pipe 14 of one as this; Described feed hopper 5 is a kind of feed hoppers 5 with hopper cover, form and dodge gate, and feed hopper 5 is in funnel-shaped structure; Described flow distribution plate 1 is the flow distribution plate 1 of a kind of inside with screen pack, and can be regulated the distance between barrel 15 by bolt; Described screw rod 2 is positioned in same level symmetrical centre with swivel joint 7, heater 3.

The utility model in use, barrel lid opened by plastics under the effect of motor 4, barrel is entered from feed hopper 5, the situation of feed hopper 5 inside now can be observed by form, main motor 10 is worked by the driven gear pump 12 of bifurcation belt wheel 9, gear pump 12 is by the rotation of hydraulic-driven screw rod 2, and slowed down by gear reduction box 6, under the conveying of screw rod 2, plastics are in the process moved forward, enter barrel 15, be subject to the heating of heater 3, the shearing of screw rod 2 and compression make plastics melting, and realize there is glassy state, three changes of elastomeric state and viscous state, when pressurizeing, to be become interface and the similar non-individual body of Oral incision by tool effigurate mouth mould for the plastics of viscous state, then undertaken being cooled to glass form by cooling water pipe 14, obtain required product.

To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.

The above; be only preferred embodiment of the present utility model; not in order to limit the utility model, every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solutions of the utility model.

Claims

1. a plastic extruder, comprises body (13), it is characterized in that: described body (13) top arranges barrel (15), and gear pump (12) is installed in body (13) side; Described gear pump (12) inside arranges ball bearing (8) and ball bearing (8) is connected with screw rod (2); Swivel joint (7) is equipped with in described screw rod (2) one end; Described ball bearing (12) is positioned between feed hopper (5) and gear reduction box (6), and motor (4) is installed at feed hopper (5) top; Described gear reduction box (6) bottom installs main motor (10) and main motor (10) is connected with bifurcation belt wheel (9); Described main motor (10) side arranges reduction box (11); Described screw rod (2) surface attachment has cooling water pipe (14), and is wrapped on screw rod (2); Described barrel (15) inwall is arranged heater (3), and one end is bolted to flow distribution plate (1).

2. a kind of plastic extruder according to claims 1, it is characterized in that: described screw rod (2) is a kind of separating screw rod (2) setting up a deputy thread in intermediate compression section, and screw rod (2) outer felt is around the spiral helicine cooling water pipe of one (14).

3. a kind of plastic extruder according to claims 1 or 2, is characterized in that: described feed hopper (5) is a kind of feed hopper with hopper cover, form and dodge gate (5), and in funnel-shaped structure.

4. a kind of plastic extruder according to claims 3, it is characterized in that: described flow distribution plate (1) is the flow distribution plate (1) of a kind of inside with screen pack, and can by the distance between bolt adjustment with barrel (15).

5. a kind of plastic extruder according to claims 4, is characterized in that: described screw rod (2) and swivel joint (7), heater (3) are positioned in same level symmetrical centre.