CN2614879Y

CN2614879Y - Special forming equipment for composite materials and high polymer materials

Info

Publication number: CN2614879Y
Application number: CN 03230670
Authority: CN
Inventors: 吴泽宏; 许新江
Original assignee: Shanghai Jianwei Science & Technology Co Ltd
Current assignee: Shanghai Jianwei Science & Technology Co Ltd
Priority date: 2003-04-24
Filing date: 2003-04-24
Publication date: 2004-05-12
Anticipated expiration: 2013-04-24

Abstract

The utility model designs a special molding facility for composite material and high molecular polymer material which comprises a mixed smelting machine, an injection charging cylinder and a block press. Overcoming the problems that the high molecular polymer material and composite material, particularly the polytef and the super molecular weight polyethylene are difficult to be injection molded, the utility model makes the plastic metal mixing, the injection moulding and the coining all together. A plurality of work pieces could be molded via the change of the cubic capacity of the injection moulding cylinder only and further via the coining after the low-voltage injection moulding the clamping pressure is reduced. The cost of the facility reduces as well as the product quality ensures. Comparing with other injection machines, the utility model has lower manufacturing cost, utilizes the power of the forming pressure at maximum limit by using the compression molding directly which reducing the energy consumption, further it is easy to mold bigger products and multiple die opening products. The formed material has small oriented quality, further it is non-cracking and non-deforming which guarantees the quality, in particular it is easy to be molded with high molecular polymer materials and various composite materials just as plastic metal or the like.

Description

Composite, macromolecule polymer material shaping equipment

Technical field

The utility model relates to a kind of plastic molding machinery equipment, a kind of specifically special equipment of producing composite, macromolecule polymer material that is mainly used in.

Background technology

High molecular polymer, especially polytetrafluoroethylene (PTFE) and ultra-high molecular weight polyethylene (UHMWPE), because characteristics such as its melt viscosity height, coefficient of friction is little, critical shear rate is low, bring very big difficulty to mixing, injection moulding, be difficult to injection mo(u)lding, the super-huge workpiece of more difficult moulding with existing injection machine.

Develop rapidly with plastics technology, utilize the proportioning that changes plastics, the method of development of new plastic alloy more and more is used, but existing injection machine can not directly be prepared burden, and carries out injection moulding again, the cost height of product after utilizing mixing roll the mixing ingredient granulation often, existing in addition injection machine is to the moulding large-mass workpiece, often equipment manufacturing cost is high especially, makes the consumer beyond affordability, and marketing also brings certain difficulty.

Summary of the invention

The utility model technical issues that need to address are to design a kind of composite, macromolecule polymer material shaping equipment, to overcome the defective that prior art exists, satisfy industrial needs.

The technical solution of the utility model: a kind of composite, high molecular polymer shaping equipment comprise the mixing roll (twin screw or single screw extruder) that has batch hopper, injection barrel and the moulding press that has piston.

The outlet of mixing roll is connected with front portion outlet with the injection barrel by check (non-return) valve, can need the material of moulding to inject the injection barrel, and the material that can guarantee each goods all is brand-new;

The injection barrel is connected with the mould of moulding press by check (non-return) valve, by piston the material in the material feeding tube is injected mould.

Use of the present utility model is very easily, various materials are placed batch hopper, by the good mixing extruder of preheating, make the material fusion, the export department by the injection barrel clamp-ons the injection barrel with it then, so not only guaranteed the quantity of each charging but also guaranteed that the material of each goods all was brand-new, by the mould of piston, increase the molding pressure of moulding press then, compression moulding again with the material injection moulding press of fusion, the cooling back demoulding promptly obtains finished product.Because in compression moulding and cooling procedure, the check (non-return) valve between mould and the injection barrel cuts out, therefore, fused materials does not flow backwards, and the quality of finished product also can be guaranteed.

The utility model is with mixing plastic alloy, and injection moulding, mold pressing are unified in one, has overcome macromolecule polymer material, composite, especially the difficult problem of the difficult injection moulding of polytetrafluoroethylene (PTFE) and ultra-high molecular weight polyethylene (UHMWPE); Promptly can reach the moulding large-mass workpiece by the volume that only changes injection cylinder simultaneously, overcome the high difficult problem of general injection machine moulding large-mass workpiece equipment manufacturing cost, again by mold pressing behind the low-pressure injection molding, reduced mold clamping force, not only can reduce equipment cost, guaranteed product quality again, because compare with other injection machine, the machine cost is cheaper, have only about 1/5th, utilize the mold pressing straight forming, maximally utilised the energy of briquetting pressure, reduced energy consumption, and easy bigger goods and the multimode cavity goods of moulding.The orientation of molding materials is little, does not ftracture, and is indeformable, easily ensures the quality of products composites such as particularly easy moulding macromolecule polymer material and various plastic alloys.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Referring to Fig. 1, former of the present utility model comprises the mixing roll 2 that has batch hopper 1, the injection barrel 4 that has piston 3 and moulding press 5.

The outlet of mixing roll 2 is connected with the anterior exit of material feeding tube 4 by check (non-return) valve 10, and injection barrel 4 is connected with the mould 6 of moulding press 5 by check (non-return) valve 9.

By Fig. 1 simultaneously as seen, mixing roll 2 is provided with twin-screw or single screw rod, and is connected with actuating unit;

Said piston 3 is arranged in the injection barrel 4, is connected with hydraulic system;

The a plurality of uniform hydraulic cylinder 13 that said moulding press comprises solid plate 11, moving platen 12 and moving platen 12 is moved, the most even with the closure that guarantees entire die, need not to make regular check on the levelness of adjusting the mould preparation tool, reduced troublesome poeration.

Said mould 6 comprises cover half 7 and dynamic model 8, and cover half 7 is fixed on the solid plate 11, and the bottom of dynamic model 8 is connected with moving platen 12, can move up and down.

Claims

1. a composite, macromolecule polymer material shaping equipment, it is characterized in that, comprise the mixing roll (2) that has batch hopper (1), the injection barrel (4) that has piston (3) and moulding press (5), the outlet of mixing roll (2) is connected by the anterior exit of check (non-return) valve (10) with material feeding tube (4), and injection barrel (4) is connected with the mould (6) of moulding press (5) by check (non-return) valve (9).

2. composite according to claim 1, macromolecule polymer material shaping equipment is characterized in that, mixing roll (2) is provided with twin-screw or single screw rod, and are connected with actuating unit.

3. composite according to claim 1, macromolecule polymer material shaping equipment is characterized in that, said piston (3) is arranged in the injection barrel (4), is connected with hydraulic system.

4. composite according to claim 1, macromolecule polymer material shaping equipment is characterized in that, a plurality of uniform hydraulic cylinder (13) that said moulding press comprises solid plate (11), moving platen (12) and moving platen (12) is moved.

5. according to each described composite of claim 1～4, macromolecule polymer material shaping equipment, it is characterized in that, said mould (6) comprises cover half (7) and dynamic model (8), cover half (7) is fixed on the solid plate (11), and the bottom of dynamic model (8) is connected with moving platen (12).