CN1241483A - Manufacturing method of rubber covered shoe wheel - Google Patents

Abstract

The invention provides a method for manufacturing rubber-coated type shoe wheel, especially for the forming method of coating thermosetting rubber on the surface of the shoe wheel of straight-wheel type skating shoes, which mainly utilizes a multi-layer forming mould, a middle and a lower moulds for bearing the wheel body, a thermosetting rubber sheet can be put into a groove preset on the upper edge of the middle mould, after the thermosetting rubber sheet is properly melted and softened, the rubber is extruded into the space of the middle and the lower moulds from a pouring hole of the middle mould by pressing of an upper mould to coat the wheel body, and finally the rubber-coated type shoe wheel is completed by heating and curing, thereby the shoe wheel with the characteristics of wear resistance and high-temperature softening deformation resistance is manufactured.

Description

Manufacturing method of rubber covered shoe wheel

The invention relates to a manufacturing method of a roller skate wheel, in particular to a method for coating a rubber tread on a roller body of a roller skate wheel.

Inline skates are a breakthrough in roller skates in recent years. The innovative skates have brought about a major breakthrough in this sport because of their better speed and more flexible control, making them popular all over the world in a very short period of time. All over the world, a new wave of ice skating has been set off.

Because the design of the shoe wheels of this kind of skates is to change the traditional large wheel surface and the form of sliding in contact with the ground into an upright type as shown in Figure 1, the speed of skating is greatly improved compared with the past skates, thus In the pursuit of speed, it has created a new realm of skates.

However, in the pursuit of speed, the high temperature generated by the high-speed rotation and friction between the shoe wheel and the ground will relatively increase the impact and damage caused by the shoe wheel. This is because the surface coating materials of these shoe wheels are generally It is made of pad plastic material, so when this type of shoe wheel and the ground cause high temperature due to high-speed friction, the surface coating material will soften. After this phenomenon occurs, the contact between the shoe wheel and the ground may cause Irregular distortions make slippery movements unmanageable and, in high-speed movements, more dangerous.

The object of the present invention is to provide a method for coating thermosetting rubber on the outer periphery of the roller skate wheel, so as to improve its safety and increase its service life.

In order to achieve the above-mentioned purpose, the present invention mainly cooperates with a multi-layer molding die, and then completes the manufacture of rubber-coated shoe wheels through molding steps such as hot melting, pressure injection, and thermosetting, so as to provide a wear-resistant shoe wheel. Shoe wheels with anti-high temperature softening deformation properties.

The invention provides a method for covering the outer periphery of a roller skate wheel with a rubber tread, the steps of which include: providing a mold with a mold cavity matching the shape of the wheel body; placing the wheel body into the mold of the mold within the cavity; providing and melting tire material to form a tire at the outer periphery of the wheel.

The above-mentioned mold is a group of multi-layer molds consisting of a base, an upper, a middle and a lower mold, wherein the groove corresponding to the lower mold can form a space for the wheel body, and the mold column of the base is inserted into the mold. In order to locate the wheel body in the space, a thermosetting rubber material can be placed in the predetermined groove on the upper edge of the middle mold, and a pouring hole is provided in the groove to penetrate the space of the wheel body so that the upper mold can be closed and pressed to the The rubber is extruded into the middle and lower mold spaces by hot pressing to cover the outer periphery of the wheel to form a tire.

In order to enhance the understanding of the process and the technical principle of the present invention's method for making, I would like to cooperate with the drawings to further specify the following:

Figure 1 is a schematic diagram of the composition of an inline skate wheel.

Fig. 2 is a schematic diagram of the cross-sectional structure of the multi-layer mold used in the present invention.

Fig. 3 is a perspective schematic diagram of the unfolded state of the multi-layer mold used in the present invention.

The present invention covers and forms rubber tread 12 on the shoe wheel shown in Fig. 1, and as shown in the figure, this shoe wheel comprises wheel body 10, is provided with a middle hole 14 on it, and forms several perforations in its peripheral part 11.

Referring to Fig. 2, shown in 3, the mold that the present invention adopts, it is in the multi-layer mold that is made up of base 50 and lower mold 20, middle mold 30 and upper mold 40, forms a can in its lower mold 20. For inserting into the semi-concave surface 21 of the prefabricated shoe wheel body 10, the mold column 51 formed on the base 50 penetrates to fit the middle hole 14 of the wheel body 10; and the inner side of the middle mold 30 corresponds to the lower mold 20 The other half of the concave surface 31 is formed, and a groove 32 is formed on the outside, and a number of injection holes 33 are preset on the groove 32; another upper mold 40 forms a bump 41 on the inner surface of the corresponding middle mold 30; accordingly , with the base 50 and the upper, middle and lower molds 20, 30, and 40 aligned to form the state shown in Figure 2; and in terms of design, each injection hole 33 of the groove 32 on the upper side of the middle mold 30 can make the glue liquid From the middle mold 30 or the side, enter the space of the mated semi-concave surfaces 21, 31.

Next, please cooperate with that shown in Fig. 3 at the same time. During the molding operation of the method of the present invention, the aforementioned wheel body 10 is first placed on the mold column 51 in the semi-concave surface 21 of the lower mold 20 for positioning, and then the middle mold 30 is closed and sealed. On the lower mold 20, the wheel body 10 is sandwiched, and an appropriate amount of rubber sheet material (not drawn) is inserted into the upper edge groove 32 of the middle mold 30, so that the upper mold 40 is matched to the middle mold 30, and Its bump 41 fits on the groove 32 of the middle mold 30. At this time, due to the temperature of the mold, the rubber sheet material in the groove 32 is melted and softened, so that the bump 41 of the upper mold 40 is pressed into the groove. When in the groove 32, be about to these softened rubber materials are extruded into the lower mold 20 and middle mold 30 semi-concave surfaces 21, 31 spaces of the matched lower mold 20 and the middle mold 30 through injection holes 33, and the built-in wheel body 10 is coated, with After the coating is completed, the mold is subjected to a thermal curing process, which is heated to a specific temperature to cure the coated rubber material, and then each mold is withdrawn to take out the molded and cured shoe wheel.

Accordingly, through the multi-layer mold structure and proper hot-melt, pressure injection and heat-curing procedures, different thermosetting rubber materials can be smoothly extruded into the covering wheel body, thus completing a mold that is different from plastic injection molding molds. The innovative shoe wheel design can improve the phenomenon of high-heat softening and deformation of the wheel of straight-wheel skates when it is rubbed at high speed. It can provide a kind of rubber that is wear-resistant and resistant to high-temperature softening and deformation to ensure the best safety. Covered wheels.

Claims (4)

1. A method for manufacturing a rubber-coated shoe wheel, which is characterized in that the outer edge of the wheel of the shoe wheel is integrally coated with a layer of thermosetting rubber material by using a molten injection mold, so as to provide wear-resistant and high-temperature resistant Skate wheels that soften deformation characteristics. 2. The manufacturing method of rubber-coated shoe wheels according to claim 1, characterized in that the coating of the thermosetting rubber material is mainly carried out by hot melting → pressure injection → heat curing and other procedures to firmly cover the The outer edge of the wheel. 3. The method for manufacturing rubber-covered shoe wheels according to claim 1 or 2, wherein the mold has a cavity whose shape matches the wheel body; the wheel body is placed in the cavity of the mold Later, tire material is provided and melted to form a tire on the outer periphery of the wheel. 4. The manufacturing method of rubber-coated shoe wheels according to claim 1 or 2, characterized in that the mold used is a multi-layer mold consisting of a base, upper, middle and lower moulds, The space for the wheel body can be formed by using the corresponding grooves of the middle and lower molds, and the mold pillars of the base can be inserted into the space to position the wheel body. Thermosetting rubber materials can be placed in the preset grooves on the upper edge of the middle mold. And in the groove, a pouring hole is provided to penetrate the space of the wheel body, so that the rubber can be hot-pressed into the space of the middle and lower molds to cover the wheel body by closing the upper mold and applying pressure.

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