TWI523770B - Wheel production method - Google Patents

Description

Wheel making method

The invention relates to a method for manufacturing a rim, in particular to a method for manufacturing a composite material rim applied to a locomotive, which has a relatively hard outer surface layer and an inner inner layer which absorbs vibration, so that the rim product has both sturdiness. And lightweight features.

Press, locomotives, cars and other vehicles, which can be said to be one of the most common products in daily life, not only can be used to significantly shorten the time people spend moving around, and the car is more suitable for people under the wind When the rainy weather goes out, it can be used by vehicles that shelter from wind and rain. The vehicle must be able to travel smoothly on the road. The most important thing is the wheel at the bottom of the vehicle. The wheel can be used for smooth running. Roads, the general wheels are attached to the outer edge of the metal wheel such as aluminum alloy with the tire skin, so that after the air is poured into the tire skin, the elasticity obtained by the tire skin and the air infused inside it can be used. The vehicle travels more smoothly.

The conventional rims are made of metal iron rings. With the advancement of technology, in the metal rims, some manufacturers have developed aluminum alloy rims, which are stronger and more durable than iron rings. When the vehicle is moving, the lighter the weight of the car body can achieve the fuel-saving and economical transportation cost. Therefore, in the past ten years, the vehicle industry has been booming to use the composite fiber material as the light weight of the parts, such as carbon fiber. The rim is a new generation of products that have been widely known in recent years.

However, the composite fiber material has the characteristics of light weight and hard texture; however, its application still has the following limitations:

1. The unit price is slightly higher; the composite fiber material is taken as an example of carbon fiber as a whole, and the price is a unit price of the iron ring and the aluminum ring made of metal material.

2. The anti-flexing effect is not good; the composite fiber material with the whole carbon fiber as an example has less absorbing and absorbing flexibility, and it is easy to embrittle and crack due to vibration when carrying heavy loads. Therefore, it is only common in bicycle rims, and is not suitable for heavy-duty steam and locomotive vehicles.

3. Insufficient strength in actual application; this is the causal relationship with the first point mentioned above. In order to save costs, the manufacturer will form a hollow air chamber on the inner surface of the composite material rim. Therefore, it is easy to cause doubts about the lack of overall strength.

In view of the problems faced by the conventional composite fiber material rim, the inventors have introduced a method for manufacturing a rim, in particular, a method for manufacturing a composite material type rim applied to a locomotive, which has a relatively hard outer surface layer, and Absorbs the inner layer of the vibration, making the rim product both sturdy and lightweight.

The invention relates to a method for manufacturing a rim, in particular to a method for manufacturing a composite material rim applied to a locomotive, which has a relatively hard outer surface layer and an inner inner layer which absorbs vibration, so that the rim product has both sturdiness. And lightweight features.

In order to achieve the above-mentioned creative purpose, the rim manufacturing method of the present invention comprises the following steps; forming a blank material: preparing a composite fiber material and a foaming material, and pre-molding the composite fiber material coated foam material into a first round of an initial embryo. The inner ring of the rim has a hub portion for connecting the wheel axles of the wheel, and the outer ring of the rim has an annular frame for the tire to be sleeved, and a plurality of links are formed between the annular frame and the hub portion. The foaming material is coated on the inner surface of the support portion.

Mold shaping: taking a male mold, a female mold, an upper ring mold and a lower ring mold, the male mold and the inner mold of the female mold each form a shaped seat, and the shaped seat corresponds to the initial embryo of the wheel a plastic groove of the hub portion and the support portion, and an outer diameter of the shaped seat frame is formed at an inner portion of the shaped ring-shaped frame body, and the upper ring mold and the lower ring mold system have a symmetrical outer shape of the outer ring-shaped frame body The semicircular groove; thus, the male mold pair is continuously clamped to the axial direction of the rim initial embryo, and the upper ring mold and the lower ring mold pair are sandwiched in the radial direction of the rim initial embryo, so that the mold covers the entire rim initial embryo .

Thermoforming: heating the male mold, the master mold, the upper ring mold and the lower ring mold to obtain the cured composite fiber material, and the working temperature of the foamed material to the thermal foaming, so as to benefit the temperature and pressure of the rim initial embryo Influence, and shape according to the shape of the inner surface of the mold.

Discharge: After the mold is cold, the male mold, the female mold, the upper ring mold and the lower ring mold can be removed to obtain Get a round of finished products.

Finished product processing: Cut and smooth the excess burrs of the rim.

According to the foregoing creations, according to the steps of the rim manufacturing method of the present invention, a composite fiber rim coated with a foamed material can be produced, which has the characteristics of two materials at the same time, and the surface of the rim body is The relatively strong composite fiber layer is formed, and the inner part has a foam material with better flexibility, and the foamed material is appropriately absorbed to absorb the deformation degree of the composite fiber material to avoid embrittlement and cracking of the wheel; therefore, the present invention can be said to be A kind of practical and progressive creation is quite worthy of promotion by the industry and publicized to the public.

1‧‧‧Composite fiber materials

2‧‧‧Foam material

3 ‧ ‧ rim embryo

31‧‧·Wheel hub

32‧‧‧ ring frame

33‧‧‧Support Department

41‧‧‧Male model

411‧‧‧Shaping table

412‧‧‧ plastic trough

42‧‧‧Female model

43‧‧‧上环模

431‧‧‧Semicircular trough

44‧‧‧ Lower ring mode

441‧‧‧ semicircular groove

5‧‧‧ finished rims

51‧‧‧ vent hole

The first figure is a schematic exploded view of the mold and the rim initial embryo of the present invention.

The second drawing is a partial cross-sectional view of the rim of the present invention.

The third figure is a schematic cross-sectional view of the mold initializing the tire.

The fourth figure is a schematic cross-sectional view of the mold heating to the thermal foaming of the foamed material.

The fifth figure is a schematic view of the three-dimensional appearance of the finished rim of the present invention.

The invention relates to a method for manufacturing a rim, in particular to a method for manufacturing a composite material rim applied to a locomotive, which has a relatively hard outer surface layer and an inner inner layer which absorbs vibration, so that the rim product has both sturdiness. And the characteristics of the lightweight, as shown in the first to fifth figures, the "wheel manufacturing method" of the present invention includes the following steps; blank forming: preparing the composite fiber material 1 and the foaming material 2, The composite fiber material 1 is selected from a heat-processable material such as carbon fiber or glass fiber, and the composite fiber material 1 is coated with the foaming material 2 to pre-shape a first round of the initial embryo 3, and the inner ring of the rim initial embryo 3 The hub portion 31 is provided with a wheel axle assembly, and the outer ring 3 of the rim has an annular frame 32 for the tire to be sleeved, and a plurality of supporting portions are formed between the annular frame 32 and the hub portion 31. 33. The foamed material 2 is coated on the inner surface of the support portion 33 (as shown in the second figure).

Forming the mold: a male mold 41, a female mold 42, an upper ring mold 43, and a lower ring mold 44 are formed. The male mold 41 and the female mold 42 are each formed with a shaped seat 411 (in the female mold 42). The face corresponds to the male mold 41, the drawing is only represented by the male mold 41, and the shaped mounts 411, 421 have Corresponding to the rim ejector 3, the hub portion 31 and the plastic groove 412 of the support portion 33, and the outer diameter of the shaped seat 411 is the inner portion of the shaped annular frame 32, and the upper ring mold 43 and the lower ring mold 44 are The symmetry has a semicircular groove 431, 441 on the outer side of the shaped annular frame 32; thus, the male mold 42 is continuously clamped to the axial direction of the rim initial 3, and the upper ring 43 and the lower ring The pair of molds 44 are clamped to the radial direction of the rim embryo 3 (as shown in the first figure), so that the mold covers the entire rim embryo 3.

Thermoforming: heating the male mold 41, the female mold 42, the upper ring mold 43, and the lower ring mold 44 to obtain the cured composite fiber material 1, and the working temperature of the foamed material 2 to thermal foaming (such as the fourth figure) As shown in the figure, the rim initial embryo 3 is affected by temperature and pressure, and is shaped according to the inner surface shape of the mold.

Discharging: After the mold is cold, the male mold 41, the female mold 42, the upper ring mold 43 and the lower ring mold 44 can be removed to obtain a finished product 5 of the wheel.

Finished product processing: the excess burrs of the rim finished product 5 are cut and smoothed.

Referring to the fifth figure, the rim nozzle hole 51 is subsequently formed by a drilling tool, or the upper ring mold 43 or the lower ring mold 44 is preliminarily provided with a shaped vent column.

It can be seen from the above-mentioned creation that the steps of the "rib manufacturing method" of the present invention produce a composite fiber rim coated with a foamed material, which has the characteristics of two materials, and the surface of the rim body. It is formed by a relatively strong composite fiber layer, and the interior has a foam material with better flexibility. The foamed material is properly absorbed to absorb the deformation of the composite fiber material to avoid brittle cracking of the wheel; The present invention is only intended to be illustrative of the preferred embodiments of the present invention, and is not intended to be construed as limiting the scope of the invention. All other aspects that can be implemented and have the same effect are still included in the scope of the present invention.

In summary, the method for manufacturing a rim according to the present invention is practical in terms of structural design and practical use, and the disclosed structural invention has an unprecedented innovative structure, so that it has "novelty" Undoubtedly, the invention can be more effective than the conventional structure, and therefore has "progressiveness", which fully complies with the provisions of the invention patent application related to the Patent Law of the People's Republic of China. Therefore, the patent application is filed to the bureau in accordance with the law. The bureau can grant the patent right in this case as soon as possible.

3 ‧ ‧ rim embryo

41‧‧‧Male model

411‧‧‧Shaping table

412‧‧‧ plastic trough

42‧‧‧Female model

43‧‧‧上环模

431‧‧‧Semicircular trough

44‧‧‧ Lower ring mode

441‧‧‧ semicircular groove

Claims (1)

The invention relates to a method for manufacturing a rim, which comprises the following steps: forming a blank material: preparing a composite fiber material and a foaming material, and pre-molding the composite fiber material coated foam material into a first round embryo, the rim initial embryo The inner ring has a hub portion for connecting the wheel axles of the wheel, the outer ring of the rim has an annular frame for the tire to be sleeved, and a plurality of supporting portions are formed between the annular frame and the hub portion. The foaming material is coated on the inner surface of the support portion; the mold is shaped: a male mold, a female mold, an upper ring mold and a lower ring mold are prepared, and the male mold and the inner surface of the female mold each form a shaped seat. And the shaping base corresponds to the plastic groove of the hub portion and the support portion of the rim initial embryo, and the outer diameter of the shaped seat frame is the inner portion of the shaped ring-shaped frame body, and the upper ring mold and the lower ring mold system are symmetrically A semi-circular groove of the outer part of the shaped ring-shaped frame; thus, the male mold pair is continuously clamped to the axial direction of the rim initial embryo, and the upper ring mold and the lower ring mold pair are clamped to the rim initial embryo. To make the mold cover the overall rim of the rim; thermoforming: the male mold, the female mold, the upper ring mold and The ring mold is heated to obtain the composite fiber material, and the working temperature of the foam material to the heat foaming is obtained, so as to affect the temperature and pressure of the rim initial embryo, and the shape is formed according to the inner surface shape of the mold; After the cold is short, the male mold, the female mold, the upper ring mold and the lower ring mold can be removed to obtain a finished product of the rim; the finished product is processed: the excess burrs of the rim are cut and smoothed.