CN212651311U - TPU middle tire - Google Patents

Abstract

The utility model provides a TPU well child relates to the technical field of ball preparation, has mainly solved among the prior art child preparation time long, and can produce harmful gas's technical problem. The TPU middle tire comprises a middle tire layer, wherein the middle tire layer is made of TPU materials. The method does not need to vulcanize the middle tire, not only shortens the manufacturing period, but also avoids harmful gas generated in the middle tire manufacturing process. In addition, the tire manufactured by the method is slightly influenced by the ambient temperature and humidity, and the stability of the product quality can be improved.

Description

TPU middle tire

Technical Field

The utility model relates to a technical field of ball preparation especially relates to a TPU well child.

Background

In the prior art, basketball middle tires are mostly made of rubber, black smoke rubber, multi-vulcanizing agents, accelerators, anti-aging agents and the like. Specifically, the basketball middle tire in the prior art needs to be manufactured through the following steps: plasticating, mixing, rolling, cutting, pasting, forming, vulcanizing, finishing and inspecting.

Although natural rubber can be used as a raw material for manufacturing the basketball middle tire in the prior art, in the manufacturing process, in order to vulcanize the basketball middle tire and enhance the elasticity of the basketball middle tire, a chemical agent for assisting vulcanization is also required to be added. Particularly, pungent smells such as hydrogen sulfide and sulfur dioxide are generated in the high-temperature vulcanization production process, and the hydrogen sulfide and the sulfur dioxide are greatly harmful to human bodies after being inhaled into the lung by operating personnel.

In addition, the basketball middle tire in the prior art is complex in production and manufacturing process, long in production time, multiple in production and manufacturing equipment and large in occupied area. In addition, in the process of manufacturing the basketball middle tyre in the prior art, the influence on the environment temperature and the humidity is large, the surface of the basketball middle tyre is irregular due to the change of the manufacturing environment, and the roundness of the middle tyre is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses one of them purpose is in order to provide a TPU well child, has solved among the prior art child preparation time long, and can produce harmful gas's technical problem. The utility model discloses a great deal of beneficial effect can be reached in the preferred embodiment, specifically see the following explanation.

In order to achieve the above purpose, the utility model provides a following technical scheme:

TPU well child include well bed course, well bed course is made for the TPU material.

The utility model relates to an in preferred or optional technical scheme, well child layer is that TPU foaming leather goods make.

The utility model relates to an in preferred or optional technical scheme, well child layer structure as an organic whole.

The utility model relates to an in preferred or optional technical scheme, the thickness of well child layer is 2.5mm to 4.5 mm.

The utility model relates to an in preferred or optional technical scheme, the shore hardness of well bed is 30HA to 50 HA.

The utility model relates to an in preferred or optional technical scheme, the child still includes inner bag layer and twines the yarn layer in the TPU, twines the yarn layer and lies in between inner bag layer and the well child layer.

The utility model relates to a preferred or optional technical scheme in, twine the yarn layer and include the yarn of twining along the inner bag surface in two directions at least.

The utility model relates to an in preferred or optional technical scheme, twine the yarn layer for twine the nylon on inner bag layer surface.

The utility model relates to an in preferred or optional technical scheme, twine the yarn layer and scribble the viscose, and twine the yarn in the yarn layer and paste through viscose and inner bag layer and/or well bed.

In an optional or preferred technical solution of the present invention, the inner container layer is made of butyl rubber.

TPU well child adopt the TPU leather material to replace the rubber materials among the prior art and make into well child, not only increase the elasticity of well child to the manufacturing process of TPU well child is simpler, and the manufacturing time is short. On the other hand, the TPU middle tire does not need to be vulcanized in the manufacturing process, so that harmful gas generated in the manufacturing process is reduced. In addition, the TPU material is a thermoplastic material, and is less influenced by the ambient temperature and humidity in the process of manufacturing the middle tire, so that the stability of the product quality can be improved.

It should be noted that, TPU well child compare with the child in the rubber among the prior art, not only the production in-process has lacked the vulcanization link, TPU's manufacturing time also is shorter than the manufacturing time of rubber.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a flow chart of a preferred embodiment of the process for making a TPU foamed middle tire according to the present invention;

FIG. 2 is a schematic illustration of the manufacture of a TPU foamed middle tire in accordance with a preferred embodiment of the present invention;

fig. 3 is a schematic structural diagram of a TPU foamed middle tire according to a preferred embodiment of the present invention.

In the figure: 1-inner container layer; 2-winding a yarn layer; 3-middle tyre layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 2, in a preferred or alternative embodiment of the present invention, the TPU middle tire includes a middle tire layer 3, and the middle tire layer 3 is made of TPU.

In a further preferred or alternative embodiment of the present invention, the middle tread layer 3 is made of TPU foamed leather.

In a further preferred or alternative embodiment of the present invention, the middle tread layer 3 is of unitary construction.

Referring to fig. 1 and 2, in a preferred or alternative embodiment of the present invention, the manufacturing of the TPU middle tire at least comprises the following steps:

s1, forming a TPU foamed leather patch, and cutting the TPU foamed leather into a basketball sheet shape.

Specifically, the foamed TPU leather is cut into sheets capable of forming a ball shape, and then the TPU foamed leather patch is obtained. Then, a plurality of foamed TPU leather patches are spliced to form the middle tire layer 3. The middle tire layer 3 is formed by firstly preparing sheets and then splicing, so that the thickness of each part of the middle tire layer 3 can be effectively ensured to be consistent, and further, the elastic performance of each part of the middle tire is consistent.

It should be noted that the shape of the basketball sheet in the above steps may be the shape of the patch in the manufacturing process of various types of ball in the prior art. Specifically, the shape is matched with a patch die adopted in the production and manufacturing process.

And S2, adhering a TPU foamed leather patch, and adhering the formed TPU foamed leather patch to the inner container wound with the yarn.

Specifically, the TPU foamed leather patch is placed in a mold, then the liner wound with the yarn is placed in the mold, the TPU foamed leather patch is fixed through the mold, and the TPU foamed leather patch is adhered to the liner wound with the yarn through the mold.

And S3, heating and fusing, namely putting the middle tire adhered with the TPU foamed leather patch into a grinding tool and heating to fuse the TPU foamed leather patch into a whole.

In a further preferred or optional embodiment of the present invention, the step of heating and fusing is performed by heating the molded middle tire to 160 ℃ to 200 ℃ with a grinding tool, and the duration is 2min to 3 min.

It should be noted that, after the TPU foamed leather patch is adhered to the yarn winding layer on the inner container, a gap exists at the splicing position between two adjacent TPU foamed leather patches. Utilize the mould to the well child heating of pasting TPU foaming leather material paster, when making surperficial TPU foaming leather material paster be in the half-melt state, utilize the mould extrusion for the junction of two adjacent TPU foaming leather material pasters fuses each other and connects, and then forms the well child layer 3 of a body structure.

And S4, cooling and trimming, namely taking out the heated and fused middle tire, cooling, and trimming surface burrs to form a complete TPU middle tire.

And S5, checking, and performing quality inspection on the TPU middle tire manufactured in the previous step.

The above preferred embodiment provides a TPU middle tire made of TPU foaming leather as a raw material. When the TPU foamed leather is used for manufacturing the TPU middle tire, the method does not need to vulcanize the middle tire, not only can simplify the middle tire manufacturing process and shorten the middle tire manufacturing period, but also can avoid harmful gas generated during the middle tire vulcanization operation and harm to the physical and mental health of operators. And because the TPU middle tire has small dependence on the environmental temperature and humidity, the TPU middle tire produced by the method has stable quality and high finished product qualification rate.

Referring to fig. 1 and 2, in a further preferred or optional embodiment of the present invention, the manufacturing of the TPU foamed leather at least includes the following steps:

s11, hot melting of TPU particles: the TPU particles are heated to a liquid state.

The utility model relates to a further preferred or optional embodiment, the temperature when TPU granule hot melt is: 170 ℃ to 180 ℃.

S12, adding a foaming agent, and adding the foaming agent into the liquid TPU.

S13, stretch forming: putting the semi-liquefied TPU into a spreading machine, and preparing the TPU leather through the spreading machine.

S14, heating and foaming: and heating and foaming the TPU leather material prepared in the previous step to prepare the TPU foamed leather material.

The utility model relates to a further preferably or in the optional embodiment, the temperature when TPU cladding heating foaming is: 120 ℃ to 140 ℃.

The utility model relates to a further preferred or optional embodiment, the thickness that the TPU that obtains after the heating foaming of TPU cladding is 2.5mm to 4.5 mm. Preferably, the thickness of the middle tyre layer 3 is 2.5mm to 4.5 mm.

The utility model relates to a further preferred or optional embodiment, the shao shi hardness that the TPU that obtains after the TPU cladding heating foaming is 30HA to 50 HA. Further preferably, the shore hardness of middle tire layer 3 is 30HA to 50 HA.

In a further preferred or optional embodiment of the present invention, the liquid TPU is 135cm to 150cm wide in the TPU coating formed by the spreader.

In a preferred or alternative embodiment, the thickness of the TPU skin before foaming is from 0.8mm to 1.2 mm.

The melting point of the TPU material is stated to be 150 ℃. When the TPU particles are heated in the boiler to 170 to 180 c, the TPU particles become liquid. And then adding a foaming agent into the liquid TPU, and introducing the liquid TPU added with the foaming agent into a spreading machine, wherein the temperature of the TPU material is rapidly reduced and the TPU material is spread into a TPU leather material with the thickness of 0.8mm to 1.2 mm.

In order to further validate the blowing agent in the TPU skin, the TPU skin is further heated to 120 to 140 c, since the TPU material has fallen below the blowing agent validation temperature as it passes through the spreader. In a further preferred or alternative embodiment, the TPU skin has a thickness after foaming of from 3mm to 4 mm. Specifically, when the TPU leather stretched by the stretcher in the above embodiment is heated to 120 to 140 ℃, pores are formed in the TPU leather, thereby achieving the foaming effect.

The utility model relates to a further preferred or optional embodiment in, the child still includes inner bag layer 1 and twines yarn layer 2 in the TPU, twines yarn layer 2 and is located between inner bag layer 1 and the well child layer 3.

In a further preferred or alternative embodiment of the present invention, the yarn winding layer 2 comprises at least two yarns wound along the surface of the inner container in two directions.

In a further preferred or alternative embodiment of the present invention, the yarn winding layer 2 is made of nylon wound around the surface of the inner container layer 1.

In the preferred embodiment, the yarn winding layer 2 at least comprises yarns wound along the surface of the liner in two directions, so that the tensile property of the yarn winding layer 2 in all directions can be improved, the liner layer 1 can be effectively protected, and the liner is prevented from deforming.

The utility model relates to a further preferred or optional embodiment in, twine yarn layer 2 and scribble the viscose, and twine the yarn in the yarn layer 2 and pass through the viscose and paste with inner bag layer 1. Preferably, the yarn winding layer 2 is bonded to the inner bag layer 1 by latex.

Preferably, the middle tyre layer 3 and the yarn winding layer 2 are bonded through viscose glue. As another practicable technical solution, the middle tire layer 3 is formed by embedding the yarn winding layer 2 into the middle tire layer 3 through hot melting. Specifically, the middle tire layer 3 is heated to melt or soften the middle tire layer 3, and then the middle tire layer 3 is pressed by a mold so that the yarns in the yarn winding layer 2 are embedded into the middle tire layer 3.

In the preferred embodiment, the yarn winding layer 2 is bonded with the inner liner layer 1 and/or the middle tire layer 3 by using glue, so that the yarn winding layer 2 can be effectively prevented from being layered with the inner liner layer 1 and/or the middle tire layer 3.

In a further preferred or alternative embodiment of the present invention, the inner container layer 1 is made of butyl rubber.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The TPU middle tire is characterized by comprising a middle tire layer (3), wherein the middle tire layer (3) is made of TPU materials.

2. The TPU midtyre according to claim 1, characterized in that the midtyre layer (3) is made of TPU foamed leather.

3. TPU midtyre according to claim 2, characterized in that the midtyre layer (3) is of one-piece construction.

4. A TPU midtyre according to claim 3, characterized in that the thickness of the midtyre layer (3) is 2.5 to 4.5 mm.

5. TPU midtyre according to claim 4, characterized in that the Shore hardness of the midtyre layer (3) is between 30HA and 50 HA.

6. The TPU midtyre according to any one of claims 1 to 4, further comprising a liner layer (1) and a yarn winding layer (2), wherein the yarn winding layer (2) is positioned between the liner layer (1) and the midtyre layer (3).

7. TPU midtyre according to claim 6, wherein said winding layer (2) comprises at least two yarns wound in two directions along the surface of the inner bladder.

8. The TPU inner tube of claim 7, wherein the yarn winding layer (2) is nylon wound on the surface of the inner tube layer (1).

9. The TPU midtyre according to claim 8, wherein the yarn winding layer (2) is coated with viscose glue, and the yarns in the yarn winding layer (2) are adhered to the inner liner layer (1) and/or the midtyre layer (3) through the viscose glue.

10. TPU tyre according to claim 6, characterized in that the inner layer (1) is made of butyl rubber material.

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