CN207708445U - A kind of PU balls being built-in with inflatable bladder - Google Patents

Abstract

The utility model discloses a kind of PU balls being built-in with inflatable bladder, at least warp layer line is wound after liner is inflated, it is then placed into the perfusion mold for being equipped with metal thimble, inflatable bladder is set to occupy the center of perfusion mold under the effect of metal thimble, PU material perfusions are carried out into covering to perfusion mold again, it is heated to be molded to get the PU balls of inflatable bladder are built-in with.The utility model can become the ball new varieties of this kind of inflation sports equipment of Aerated football, inflatable basketball, inflation vollyball well, and cost low performance is good.

Description

A kind of PU balls being built-in with inflatable bladder

Technical field

The utility model is related to ball sports and entertainment articles fields, and in particular to a kind of PU balls being built-in with inflatable bladder.

Background technology

The ball product of traditional inflation, usually makes inflatable bladder with the material of rubber or latex material, then by PU, The leathers class material such as the dermatines such as PVC, leather by cutting out, sewing or hand joint stabilizing process, by leather substance a piece of one Piece is connected into covering coat, then wraps up or be fitted in above core liner, and traditional way takes consumption manpower, manufacture process it is more and It is of high cost.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is that propose a kind of PU balls being built-in with inflatable bladder, It is a kind of integrally formed inflation for the single step formed seamless that leather connecting method can be replaced to form covering coat completely Ball product.

Used technical solution is：

A kind of PU balls being built-in with inflatable bladder, wind at least warp layer line, are then placed into installation after liner is inflated Have in the perfusion mold of metal thimble, so that inflatable bladder is occupy the center of perfusion mold under the effect of metal thimble, then right The progress PU materials perfusion of perfusion mold is heated to be molded to get the PU balls of inflatable bladder are built-in at covering.

Further, the liner selects the material of rubber, latex or PVC to be made.

Further, the gas nozzle of liner exposes to outside PU coverings.

Further, the gas nozzle of liner is built in PU coverings.

The beneficial effects of the utility model are：

1, in a manner of the traditional sewing ball sewed by hand skin of method optimizing that covering is directly poured on core liner, in this way Way saving working hour human-saving, it is simple and at low cost to manufacture process.

2, in the structure of traditional solid polyurethane foaming, using the molding mode of installation thimble, by polyurethane product Gas in inflatable bladder can be bled off, be saved in packaging vanning and transport by the structure that can also make inflatable bladder Volumetric spaces are readily transported and store.

3, because its covering is integrally formed, so more integrated, will not because continuous ground strikes generate sewing or The broken string of needlework at hand seam or the soaked disadvantage into leather seam gap, sphere will not make moist be not easy it is dirty, convenient for clear It washes.

4, the utility model can become Aerated football, inflatable basketball, inflation this kind of inflation sports equipment of vollyball well Ball new varieties, cost low performance are good.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, Other drawings may also be obtained based on these drawings.

Fig. 1 is the schematic cross-sectional view before liner unaerated；

Fig. 2 is the schematic cross-sectional view after liner inflation；

Fig. 3 is the structural schematic diagram after inflatable bladder winding yarn；

Fig. 4 is the schematic cross-sectional view that mold is perfused；

Fig. 5 is the schematic cross-sectional view for the PU balls for being built-in with inflatable bladder.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only some embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts The every other embodiment obtained, shall fall within the protection scope of the present invention.

Shown in Fig. 1-Fig. 5, a kind of PU balls being built-in with air blowing liner, liner 1 can select rubber, latex or Liner 1 is made in this kind of materials that can make inflatable bladder of PVC, and peace is just positioned over after winding warp layer line 2 after liner 1 is inflated In metal perfusion mold 4 equipped with metal thimble 3, under the action of metal thimble 3, core liner 1 occupy metal perfusion mold Center, after placing, then the perfusion of PU materials is carried out into covering 5 to mold, heats aftershaping by oven assembly line, i.e., The PU balls for obtaining being built-in with air blowing liner can be demoulded from mold.

In this way, the PU balls obtained for being built-in with air blowing liner, structure is three-decker, i.e., inflatable bladder 1, be wrapped in and fill Thread layers outside gas liner and in the molding covering layer of thread layers outer filling PU materials.Wherein thread layers play occlusion bladders With the effect of covering.

It is installed with 1 or more metal thimble on metal perfusion mold, Fig. 4 schematically shows 5.The gold Belong to thimble and play the role of fixed liner and exhaust, after form demoulds, the needle-like circular hole of thimble is had on covering, it can be with Perforations adding process is carried out subsequently on covering.

As a kind of specific implementation mode, separately there is the small cylindrical tank 6 for being equipped on metal die and placing liner gas nozzle, work as liner 1 when being positioned on metal thimble 3, and liner gas nozzle 7 is correspondingly placed in small cylindrical tank 6, after form demoulds, liner gas nozzle 6 It can expose to outside covering 5, can be carried out by the liner gas nozzle inflatable and deflatable to liner.

As another specific implementation mode, the inflating port of liner gas nozzle can also be built in PU coverings, and using can be with The vent plug needle for inserting stifled air-filled pore is installed and is fixed on mold, first when the inflatable bladder for winding yarn will be put into mold Stomata is directed at the vent plug needle on mold, is then placed into mold, the perfusion of PU materials is irrigated into covering process, works as molding Afterwards, only occurs the inflation aperture of liner on covering.

PU pouring materials select polyurethane material, also optionally use this kind of packing material of coarse whiting.

PU perfusion the covering mode of appearance to be presented, can be realized by molding mode appearance for football, basketball, Lines and appearance structure required by the external form lines and structure of vollyball and guest.

The covering appearance color to be presented of PU perfusions, can be realized by painting or printing.

To which the utility model can become Aerated football, inflatable basketball, inflation this kind of inflation sport device of vollyball well The ball new varieties of material, cost low performance are good.

The series of detailed descriptions listed above only for the utility model possible embodiments it is specific Illustrate, they are all without departing from made by the utility model skill spirit etc. not to limit the scope of protection of the utility model Effect embodiment or change should be included within the scope of protection of this utility model.

Claims (4)

1. a kind of PU balls being built-in with inflatable bladder, which is characterized in that its structure be three-decker, i.e., inflatable bladder, be wrapped in Thread layers outside inflatable bladder and in the molding covering layer of thread layers outer filling PU materials.

2. the PU balls according to claim 1 for being built-in with inflatable bladder, which is characterized in that the inflatable bladder selects rubber The material of glue, latex or PVC is made.

3. the PU balls according to claim 1 for being built-in with inflatable bladder, which is characterized in that outside the gas nozzle of the inflatable bladder It is exposed to outside PU coverings.

4. the PU balls according to claim 1 for being built-in with inflatable bladder, which is characterized in that in the gas nozzle of the inflatable bladder It is placed in PU coverings.