CN202517645U

CN202517645U - Polyurethane foaming toy without limit on play environment

Info

Publication number: CN202517645U
Application number: CN201220104824XU
Authority: CN
Inventors: 周广林
Original assignee: 周广林
Current assignee: Zhaoqing supreme Plastic Hardware Products Co., Ltd.
Priority date: 2012-03-19
Filing date: 2012-03-19
Publication date: 2012-11-07
Anticipated expiration: 2022-03-19

Abstract

The utility model provides a polyurethane foaming toy without limit on play environment-unlimited which comprises a body, wherein the body comprises an internal polyurethane foaming body, an upper soft outer skin and a lower soft outer skin, which are packed outside the polyurethane foaming body and are in but joint with each other, and an adhesive sprayed between the soft outer skin and the polyurethane foaming body, and between a but joint surface of the upper soft outer skin and a but joint surface of the lower soft outer skin. According to the utility model, the polyurethane foaming toy is formed by the means that the internal polyurethane foaming body is combined with the outer soft skin by the adhesive; the polyurethane foaming toy is provided with the flexible and firm thermoplastic soft rubber skin, and the skin can protect the internal polyurethane foaming body, so that the difficulties that the existing product is musty caused by water absorption, difficult to clean, easy to damage and the like can be effectively solved.

Description

Do not limit the polyurethane foam toy of the environment of playing

Technical field

The utility model relates to the polyurethane foam plastics technical field.

Background technology

Polyurethane foam plastics is processed through the polymerization foaming by isocyanates and hydroxy compounds, can be divided into soft and two types of hard by its hardness, and wherein soft is principal item.In general, it has splendid elasticity, flexibility, percentage elongation and compressive strength; Chemical stability is good, anti-many solvents and oils; High abrasion resistance is big 20 times than natural sponge; Also having performances such as good processability, thermal insulation, cohesive, is a kind of padded coaming of function admirable, therefore should be used as toy for children by more ground at present.

1), a large amount of open pores very easily absorbs the moisture that touches in the process of playing but can't fast dewatering unsatisfactory result below present polyurethane foaming product is at play and can produces in the process:; Cause producing in the product mould, children's health is impacted; Made dirty when 2), in moist muddy environment, the playing surface of product can't properly be cleaned; 3) it is very easily damaged during, the product subsurface of softness is at play.

The utility model content

The purpose of the utility model is the deficiency to prior art, and a kind of improved polyurethane foam toy is provided, and needn't receive to the environmental limit of playing.

In order to realize above-mentioned utility model purpose; The utility model has adopted following technical scheme: a kind of polyurethane foam toy of not limitting the environment of playing; Comprise body; Said body comprises inner polyurethane foaming body, is coated on the soft crust of soft crust in the top that connects and bottom of said polyurethane foaming body appearance, and is sprayed at the adhesive that reaches between soft crust and the polyurethane foaming body between the soft crust interface in upper and lower part.

Preferably, said soft crust is PVC or TPE or TPR or TPU or the EVA flexible plastic of material hardness below Durometer A hardness 70 degree.

Preferably, said toy is a ball-shaped toy.

Preferably, said soft crust has outside floral designs.

The utility model combines inner polyurethane body and outside moccasin through adhesive and processes the polyurethane foam toy; It is owing to have pliable and tough and firm thermoplasticity flexible glue epidermis; This epidermis plays a protective role to the polyurethane foaming body of inside, and the suction that can effectively solve existing product is mouldy, cleaning difficulty, difficult problems such as breakage easily.In addition, the technology that the utility model adopted can make the product shape structure possess the outside floral designs of sophisticated, when increasing aesthetic feeling, has also changed the smoothness of outer surface, increases frictional force.

Description of drawings

Fig. 1 is a sketch map of moccasin being put into mould.

Fig. 2 is the sketch map that the mould that is placed with moccasin is vacuumized.

Fig. 3 is the sketch map to moccasin surrounding edge and inner surface adhesive for spraying.

Fig. 4 is the sketch map that injects the polyurethane slurries.

Fig. 5 is the sketch map of matched moulds and polymerisation.

Fig. 6 is the die sinking sketch map.

The specific embodiment

This example is the manufacturing embodiment of polyurethane foam toy.

Like Fig. 1～shown in Figure 6, be the manufacturing approach of the polyurethane foam toy of the utility model.

Step 1: prefabricated soft crust 1 is put into foaming molding mold 2, vacuumize through the vacuum tube on the mould and make soft crust 1 adsorbed close at mould 2 inner surfaces, shown in Fig. 1～2.

Wherein, said soft crust is PVC or TPE or TPR or TPU or the EVA flexible plastic of material hardness below Durometer A hardness 70 degree.Said soft crust has outside floral designs, is processed by the injection mold injection moulding.Soft crust can use monochromatic crust, also can select the double-colored or multi-color injection molded crust that forms.So-called double-shot moulding mainly cooperates two molds to process bijective product through twice moulding sequentially with two material pipes of dijection make-up machine, and this technology is prior art, repeats no more at this.

The foaming molding mold inwall has the floral designs that match with soft crust outside.Foaming molding mold considers simultaneously that according to the specification of injection mold the employing computer secondary process such as shrinkage of material form, and can guarantee that like this floral designs of foaming molding mold inwall and soft crust can match fully.

Step 2: keep under the vacuum pressure condition, to the surrounding edge 11 and internal chamber wall 12 adhesive for spraying 3 of soft crust 1, as shown in Figure 3.

Wherein, said adhesive is that TPU, neoprene, tackifying resin mixture are dissolved in that organic mixed solvent is refining to form, and the organic solvent that is adopted is 100%MEK (butanone), and by mass parts, the MEK consumption is 92-94%.The content of TPU, neoprene, tackifying resin is (in the mixture sum 100 of TPU, neoprene, tackifying resin) as follows:

Thermoplastic polyurethane 60

Neoprene 30

Tackifying resin 10.

Step 3: be injected into polyurethane material 4 in the mould, as shown in Figure 4.

Polyurethane material is that component P and component I mix through accurate measurement through professional polyurethane foam bottler placer and form, and the mass ratio of component P and component I is=100:60.

Wherein the P material mixes for some kinds of PPGs add multiple auxiliary agent.

In polyalcohol total amount 100, each PPG component and content are following:

PPG 330N 40

PPG 360N 30

Polymer polyatomic alcohol 36/30G 30;

The prescription of auxiliary agent is following: (is 100 in P material total amount)

Component I is mixed by the mass parts of polymeric MDI M20S/ liquefied mdi MP113=50/55 by polymeric MDI BASF M20S and liquefied mdi BASF MP113.The MDI of other brand or model can be used as alternative materials under the close prerequisite of physical parameter.

Step 4: matched moulds and polymerisation, make polyurethane material foaming in mould, as shown in Figure 5.

Step 5: die sinking obtains finished product 100, and is as shown in Figure 6.

Prepared finished product 100 skins are soft crust, and the centre is a polyurethane body.Become one owing to the effect of adhesive and clamp force makes cover in order contents melted the cohering in the mould up and down, polyurethane foam material is coated on interior and plays a protective role.Preferably, the polyurethane foam toy of the utility model is the polyurethane foam ball, is shapes such as circle or ellipse.

Claims

1. polyurethane foam toy of not limitting the environment of playing; Comprise body; It is characterized in that: said body comprises inner polyurethane foaming body; Be coated on the soft crust of soft crust in the top that connects and bottom of said polyurethane foaming body appearance, and be sprayed at the adhesive that reaches between soft crust and the polyurethane foaming body between the soft crust interface in upper and lower part.

2. the polyurethane foam toy of not limitting the environment of playing according to claim 1 is characterized in that: said soft crust is PVC or TPE or TPR or TPU or the EVA flexible plastic of material hardness below Durometer A hardness 70 degree.

3. the polyurethane foam toy of not limitting the environment of playing according to claim 1 and 2 is characterized in that: said toy is a ball-shaped toy.

4. the polyurethane foam toy of not limitting the environment of playing according to claim 3 is characterized in that: said soft crust has outside floral designs.