CN1654100A - Manufacturing method of golf wood club head - Google Patents

Abstract

The invention relates to a method for manufacturing a golf wood club head. The method comprises the following steps: firstly, a hollow wood club head is manufactured with metal, wherein the club head has a metal top cover; then, a club head shell is used as a mold, a composite material is attached to the top cover of the club head shell, and a composite material thin shell top cover having the shape of the club head top cover is formed; the composite material top cover is removed, and a through hole is cut at the top cover position of the metal club head shell, wherein the shape of the through hole is similar to that of the composite material top cover, but the size is slightly smaller; then, the composite material top cover is bonded back to the top surface of the metal club head shell with an adhesive to cover the through hole.

Description

Manufacturing method of golf wood club head

technical field

The invention relates to a manufacturing method of a golf wood club head, in particular to a manufacturing method of a hollow wooden club head in which the club head shell is made of metal and the top cover is made of composite material thin shell.

Background technique

The golf wood club head is designed to require the center of gravity to be as low as possible so that the ball can hit farther. Therefore, for the hollow metal wood club head, the top cover is designed to be as thin as possible and lighter. The more effective it is. Due to the high specific gravity of metal, it is always not as good as direct use of composite materials in terms of weight reduction. However, the composite material top cover and the metal rod head shell are bonded by an adhesive (such as epoxy resin), unless the composite material top cover and the metal shell to be bonded can be completely bonded without warping gaps, Otherwise, there will inevitably be internal stress after bonding, and it may even be impossible to bond at all. When the club head with internal stress at the bonding position undergoes deflection and deformation after being subjected to a strong impact, it is very easy to break at the bonding position . Since the metal rod head shell is made of precision lost-wax casting, or welded with 2 or 3 metal parts, the part to be joined with the composite material top cover will always be subject to dimensional shrinkage tolerances, and the raw materials are stacked and handled. Due to the small deformation, welding process, surface grinding process, etc., the metal shells will not have a completely consistent fit. Therefore, even if the composite material top cover is molded under the most precise conditions, it is difficult to match each metal shell. Body anastomosis, it is impossible to remove the internal stress of the fitting position.

Contents of the invention

In view of the above problems, the main purpose of the present invention is to provide a method for manufacturing a golf wood club head, which can produce a club head in which a composite material top cover and a metal club head shell are completely matched and bonded.

In order to achieve the above object, the present invention provides a method for making a golf wood club head. Its technical characteristics are as follows: first make a hollow wood club head with metal, the club head has a metal top cover, and then use the club head shell The body is a mold, and the composite material is attached to the top cover of the rod head shell to form a composite material thin shell top cover, and the composite material top cover is removed, and a perforation is cut at the top cover position of the metal rod head shell , the shape of the perforation is similar to the shape of the composite material top cover, but the size is slightly smaller, and then the composite material top cover is attached to the top surface of the metal rod head shell with an adhesive, and covers the above-mentioned perforation, so that a complete A hollow metalwood head with a composite cap. And because the composite top cover is molded with the attached metal rod head shell itself, it can be guaranteed that each piece of composite material top cover can be completely and tightly attached to its corresponding metal rod head shell.

Description of drawings

Fig. 1 is the production process figure of the embodiment of the present invention;

Fig. 2 is the finished product figure of the embodiment of the present invention;

Fig. 3 is a sectional view along section line 3-3 in Fig. 2;

Fig. 4 is another kind of finished product figure of the present invention;

Fig. 5 is a cross-sectional view along line 5-5 in Fig. 4 .

Detailed ways

An embodiment is given below and described in detail in conjunction with the accompanying drawings.

As shown in Figure 1, the method for making the golf wood club head provided by the present invention comprises the following steps:

Step A: Prepare materials. First, a hollow wooden club head 10 is made of metal, and the fiber-reinforced sheet material impregnated with carbon fiber and epoxy resin is cut into a predetermined shape 20'. Wherein the metal rod head 10 can be made by lost wax casting, or forged several pieces and then welded, and the fiber reinforcing piece can be carbon fiber, glass fiber or boron fiber and so on.

Step B: Cover the prepared fiber reinforced sheet 20' on the top surface of the metal rod head shell 10. In this step, since the sheet 20' is impregnated with resin, the sheet 20' will be attached to the metal shell 10 top surface.

Step C: Wrap the club head of step B with adhesive tape 30, and press the fiber-impregnated resin sheet 20' to the metal club head 10 tightly. The tape used here is the same as the outer wrap tape for forming carbon fiber shafts such as golf shafts or fishing rods.

Step D: putting the rod head of step C into the oven 40 to heat, so that the epoxy resin is hardened and set.

Step E: Take out the club head from the oven 40 in step D, and unwrap the tape covering the outer layer.

Step F: Separate the shaped composite material top cover 20 from the metal rod head shell, and cut a perforation 11 on the top surface of the metal rod head shell 10 .

Step G: Put the top cover 20 back on the top surface of the metal rod head shell 10 and bond it with an adhesive (such as epoxy resin).

Step H: Put several club heads from step G into a plastic bag 50 , and seal the neck end of the club heads 10 with an end sleeve 12 .

Step I: Vacuum the plastic bag 50 in step H, and press the top cover 20 and the metal rod head shell 10 by atmospheric pressure.

Step J: heat the object of step I in an oven 60 to harden the adhesive.

Finally, the club head 10 is taken out from the oven 60 and the plastic bag 50 to obtain the club head structure as shown in FIG. 2 and FIG. 3 . The rod head is a shell 10 made of metal with a perforation 11 on its top surface, and a composite material top cover 20 is used to cover and close the perforation 11 . Since the composite material top cover 20 is directly hardened and molded with the metal rod head shell 10 attached thereto, it can achieve tailor-made and seamless excellent effects.

As shown in Figures 4 and 5, the club head 70 is made according to the aforementioned method, the difference is that the metal club head shell 70 is located at the toe 71 and the heel 72, and is pierced from the top surface 73 to both sides. Each extends to form a slit 74 , and the composite material top cover 80 extends a shoulder 81 to both sides correspondingly to cover and cover each slit 74 . The structure of this kind of club head 70 can further reduce the weight of the metal shell, and the front and rear sides of the metal shell are connected by composite materials, so that the club head has greater elastic deformation after hitting the ball, which can effectively improve the hitting performance. Efficiency of the ball and ball control. In addition, the two shoulders 81 of the top cover 80 cover both sides of the club head shell in the shape of a C-shaped clip, so that the bonding strength is higher. In addition, the crack 81 can also extend to the sole of the metal club head shell, and the two shoulders 81 also extend to cover the bottom surface, which can further reduce weight and increase the flexure between the front and rear sides of the club head. Flexibility.

Claims (12)

1. A method for making a golf wood club head, characterized in that it comprises the following steps: Step A: preparing a metal hollow wooden club head; Step B: attaching a fiber-impregnated resin-impregnated sheet material to the top surface of the metal club head shell of Step A; Step C: heating the metal rod head shell attached with the fiber reinforcing material in step B, so that the fiber reinforcing material is hardened and shaped according to the shape of the metal rod head shell to form a composite material top cover; Step D: separating the composite material top cover shaped in step C from the metal rod head shell, and then cutting a perforation on the top surface of the metal rod head shell; Step E: Put the shaped composite material top cover back on the top surface of the metal rod head shell to seal the perforation, and attach it with an adhesive. 2. The method for making a golf wood club head according to claim 1, characterized in that: after the fiber-impregnated resin sheet material in step B is attached to the top surface of the metal club head shell, it is then wrapped and fixed with an adhesive tape . 3. The method of manufacturing a golf wood club head according to claim 1, characterized in that: the heating step in step C is heating in an oven. 4. The method for manufacturing a golf wood club head according to claim 1, characterized in that in step E, the top cover and the metal shell are bonded together with an adhesive, and then heated to accelerate curing. 5. The method of manufacturing a golf wood club head according to claim 4, wherein the top cover is pasted on the metal shell with an adhesive, and then put into a plastic bag, and the Vacuum the plastic bag. 6. The method for manufacturing a golf wood club head as claimed in claim 5, wherein the neck of the metal club head shell is further sealed with an end sleeve. 7. The method of manufacturing a golf wood club head according to claim 1, characterized in that: the toe and the heel of the metal club head shell each extend downwards from the perforation of the top surface with a crack, The composite material top cover is respectively provided with a shoulder corresponding to the two slits, covering and sealing the two slits. 8. A method for making a golf wood club head, which is characterized in that: firstly use metal to manufacture a hollow wood club head, the club head has a metal top cover, and then use the club head shell as a mould, Composite material is attached to the cap of the tip shell, a composite thin shell cap is molded in the shape of the tip cap, the composite cap is removed and placed on top of the metal tip shell A perforation is cut in place of the top cover, the shape of the perforation is similar to the shape of the composite top cover, but the size is slightly smaller, and the composite top cover is then bonded back to the metal tip shell with adhesive the top surface of the body and cover the perforation. 9. The method for making a golf wood club head according to claim 8, characterized in that: after attaching the unformed composite material to the top surface of the metal club head shell, wrapping and tightening it with an adhesive tape . 10. The method of manufacturing a golf wood club head as claimed in claim 8, characterized in that: put the unformed composite material together with the metal club head shell into an oven for heating, so that the composite material is hardened stereotyped. 11. The method for manufacturing a golf wood club head according to claim 8, characterized in that: after the shaped top cover is pasted back to the metal club head shell with an adhesive, it is then placed into the Put it in a plastic bag and evacuate it, then place it in an oven to heat to harden the adhesive. 12. The manufacturing method of golf wood club head according to claim 8, characterized in that: the toe part and the heel part of the metal club head shell respectively extend a crack from the perforation on the top surface downwards, and the The composite material top cover is respectively provided with a shoulder corresponding to the two cracks, covering and sealing the two cracks.

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