CN202357336U

CN202357336U - Automatic demoulding mould for polyurethane foaming materials

Info

Publication number: CN202357336U
Application number: CN201120386519XU
Authority: CN
Inventors: 胡建明
Original assignee: Sealed Air China Co Ltd
Current assignee: Sealed Air China Co Ltd
Priority date: 2011-10-12
Filing date: 2011-10-12
Publication date: 2012-08-01
Anticipated expiration: 2021-10-12

Abstract

An automatic demoulding mould for polyurethane foaming materials comprises a mould plate defining the periphery and a mould core placed in the mould plate and is characterized in that a cylinder used for pushing the mould core to move is arranged on the contact face of the mould core and the mould plate. An air suction port used for controlling air convection is further arranged at the bottom of the mould plate. The cylinder ejects the mould core in the mould plate to drive moulded foaming materials to break away from the mould plate, so that the automatic demoulding mould reduces demoulding difficulty, improves demoulding plastic and reduces waste produced in the demoulding process. The air suction port designed on the bottom face of the mould plate ensures air convection, gummed paper can be completely adsorbed in the mould when a moulded foaming buffer gasket is manufactured, breakage percentage is reduced, and simultaneously attractive appearance of the manufactured buffer gasket can be improved.

Description

Polyurethane foam material automatic demoulding mould

Technical field

The utility model relates to packaging material polyurethane foam moulding industry, relates in particular to the stripper of polyurethane foam molding packaging material, the automatic demoulding equipment.

Background technology

Nineteen sixty has been invented bubble chamber film by mark Sha Wana; Be used to pack the production that shockproof bubble chamber film relates to packaging for foodstuff, protective packing, medical packaging and special material packing; Since polyurethane foam technology in 1969 is applied to the buffering package field and has produced first generation blister pack equipment; Packaging industry has got into new epoch, and the blister pack technology is the more wide packing technique of a kind of application prospect, can be according to certain products foaming packaging material; The effect that the ability realization is made to measure, the more firm and dense product that needs packaging protecting that protects.Blister pack can significantly reduce packing cost and management cost, and can the loss protection performance of products; Flow package can form the applying protective package by expansion molding in the several seconds more efficiently, has improved production efficiency greatly, and can simplify the packing running, and global formation does not need multiple combination collocation splicing; Satisfy various individual demands,, can both accomplish to reach target no matter be that fill or high-intensity support location in accurate buffering package of needs or high speed space.

One of concrete application of this blister pack technology is to need to cooperate mould to use; Obtain moulding blister pack cushion pad through filling-foam glue in mould; If but the shape of product more complicated of the pack also corresponding more complicated that is desired mould; Foamed glue is difficult for behind the foaming taking out in mould; Particularly have certain depth and not enough this situation of mould of opening width is more serious,, all need be provided with one usually with shape of product similar core rod roughly at the mould of correspondence because the blister pack cushion pad is exactly to be used for fixing the protection product usually; Resulting blister pack just has the form that can fix product to be packaged; Core rod is wrapped in outer mould and the expanded material by whole when filled with foaming material, and this mould and mold insert structure all cause demoulding difficulty big, and many owing to being difficult to the waste product that the demoulding produces.

Summary of the invention

It is conveniently stripped that the utility model has proposed an ability to above problem, simplifies demoulding difficulty, improves the polyurethane automatic demoulding mould of the percent defective of rate of release, reduction demoulding generation.

The technical scheme of the utility model is: a kind of polyurethane automatic demoulding mould comprises surrounding peripheral template and placing the core rod within the template that it is characterized in that, said core rod and template contact-making surface are provided with and promote the cylinder that core rod moves.

Said core rod side and template medial surface have the slide guide structure that cooperatively interacts, and adopt guide rail and guide runner structure to improve the effect of slide guide up and down respectively.

Said cylinder is distributed on the template bottom, and each cylinder all has a push rod, and the cylinder body of said cylinder is arranged on the template bottom surface, and push rod then runs through the template bottom surface and withstands the core rod bottom surface, realizes promoting up and down operational function.

Said template bottom also has the air entry of a control gaseous exchange, the external air draught platform at the air entry place.Because polyurethane has certain viscosity in tens of seconds time before moulding; The needs shop special-purpose gummed paper of one deck separates polyurethane and mould is bonded together to prevent foam and mould; The external air draught platform in air entry place can be fitted on the mould gummed paper fully, promptly reduces owing to gummed paper is damaged to make the ripe preceding polyurethane that flows be penetrated into the defective products that brings on the mould; The foaming pulvilliform shape made and the mould of design are consistent, more attractive in appearance.

The beneficial effect of the utility model is: through the core rod in the cylinder top moving platen, drive the moulding expanded material and deviate from template together, reduce demoulding difficulty, improve demoulding plastics, reduced the waste product that produces in the knockout course.The air entry of design in the template bottom surface then guarantees cross-ventilation, and assurance gummed paper and core rod are fully fitted.

Description of drawings

Fig. 1 is the utility model one example structure sketch map;

Fig. 2 is the utility model perspective view.

Wherein: 1, template; 2, core rod; 3, cylinder; 3.1, push rod; 3.2, cylinder body; 4, air inlet; 5, gas outlet; 6, air switch; 7, air compressor; 8, air entry; 9, guide rail; 10, guide runner; 11, air draught platform.

The specific embodiment

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.

Embodiment 1: a kind of polyurethane automatic demoulding mould comprises surrounding peripheral template and placing the core rod 2 within the template that it is characterized in that, said core rod 2 is provided with template 1 contact-making surface and promotes the cylinder 3 that core rod 2 moves.

Be set in the template 1 according to the visible core rod of Fig. 1; Have cover plate above the template 1, so core rod 2 is to adopt the mode that is pushed up and down, and core rod has side and template to fit; So can have the slide guide structure that cooperatively interacts in said core rod 2 sides and template 1 medial surface; Adopt guide rail and guide runner 10 structures to realize slide guide up and down respectively, certainly can guide rail be set on core rod as required, guide runner is set on template; Also can guide runner be set on core rod, guide rail is set on template.The demonstration that provides in the drawings is guide rail 9 to be set on the template, guide runner 10 is set on core rod 2.

Said cylinder 3 is distributed on template 1 bottom, and each cylinder 3 all has a push rod 3.1, and the cylinder body 3.2 of said cylinder 3 is arranged on template 1 bottom surface, and push rod 3.1 then runs through the template bottom surface and withstands core rod 2 bottom surfaces.

As can be seen from the figure, air inlet 4 and gas outlet 5 that said cylinder 3 can also be supporting are added with air switch 6 and air compressor 7 in the mobile intermediate link of pipeline, promote the motion of push rod through air compressor 7 compressed air.

Said template bottom also has the air entry 8 of a control gaseous exchange; The external air draught platform 11 at air entry 8 places; Because polyurethane has certain viscosity in tens of seconds time before moulding, need one deck special-purpose gummed paper in shop to separate polyurethane with mould is bonded together to prevent foam and mould, and the air of air draught platform 11 extraction inside; Gummed paper can be fitted on the mould fully; Promptly reduce since gummed paper damaged making ripe before mobile polyurethane being penetrated into the defective products that brings on the mould, the foaming pulvilliform shape made and the mould of design are consistent, more attractive in appearance.

In use, core rod places template inner, puts into foamed glue, after the moulding, and cylinder intake, promotion cylinder member structure up moves and withstands core rod, and core rod is pushed out, and accomplishes the demoulding.

The beneficial effect of the utility model is: through the core rod in the cylinder top moving platen, drive the moulding expanded material and deviate from template together, reduce demoulding difficulty, improve demoulding plastics, reduced the waste product that produces in the knockout course.The air entry of design in the template bottom surface cooperates the use of air draught platform then to guarantee cross-ventilation, and assurance gummed paper and core rod are fully fitted.

Claims

1. a polyurethane foam material automatic demoulding mould comprises surrounding peripheral template and placing the core rod within the template, it is characterized in that, said core rod and template contact-making surface are provided with and promote the cylinder that core rod moves.

2. according to the said polyurethane foam material automatic demoulding of claim 1 mould, it is characterized in that said core rod side and template medial surface have the slide guide structure that cooperatively interacts, adopt guide rail and guide runner structural group to synthesize the slide guide structure respectively.

3. according to the said polyurethane foam material automatic demoulding of claim 1 mould; It is characterized in that said cylinder is distributed on the template bottom, each cylinder all has a push rod; The cylinder body of said cylinder is arranged on the template bottom surface, and push rod then runs through the template bottom surface and withstands the core rod bottom surface.

4. according to the said polyurethane foam material automatic demoulding of claim 3 mould, it is characterized in that said template bottom also has the air entry of a control gaseous exchange, the external air draught platform at said air entry place.