CN1680054A - Manufacturing method of golf club head - Google Patents

Abstract

A method for manufacturing a golf club head comprises the following steps: manufacturing a body wax mould and a panel wax mould, wherein the body wax mould is provided with a back cavity, and the lip edge of the back surface of the panel wax mould is provided with a shoulder part; preliminarily combining the body wax mould and the panel wax mould, and forming a bonding channel between the back cavity of the body wax mould and the shoulder of the panel wax mould; filling an adhesive into the adhesive channel to adhere the body wax pattern and the face plate wax pattern to form a club head wax pattern; dipping the wax mold of the club head into slurry to form a sand shell mold, and then heating and melting the sand shell mold for dewaxing; and casting by using the sand shell mold to obtain a casting of the club head. The invention overcomes the defects of the prior art, and the bonding channel is beneficial to forming a uniform bonding surface, so the invention can really complete gap filling and form a flat bonding surface, thereby improving the subsequent casting qualification rate and increasing the surface flatness of a casting.

Description

Manufacturing method of golf club head

technical field

The invention relates to a manufacturing method of a golf club head, in particular, a bonding channel is reserved between a back cavity of a body wax model and a panel wax model, and an adhesive is filled to form a smooth bonding A golf club head manufacturing method that improves the surface smoothness of the subsequent club head casting product.

Background technique

The manufacturing method of known golf club head, please refer to shown in Fig. 1 to 3, and it reveals Taiwan No. 514574 " the manufacturing method of golf iron club head " invention patent, and this method comprises the following steps: (1) two-piece wax mold 10 , 20 respectively molding operation, as shown in Figure 1, it is to inject wax liquid respectively in the first mold and the second mold (not shown), after making it open the mold, form two-piece wax mold 10,20 respectively, For example, a body wax pattern 10 and a panel wax pattern 20; (2) wax pattern bonding operation, as shown in Fig. Wax molds 10, 20 are bonded into one; (3) dipping slurry to make sand shell mold 30 operation, as shown in Figure 2, it dips slurry in the surface of two-piece wax pattern 10, 20 bonded one to make it form sand shell mold 30, the wax molds 10, 20 are melted and poured out subsequently, and a convex portion corresponding to the shape of the back cavity is formed in the sand shell mold 30, and a casting port is formed on one side of the sand shell mold 30; and (4) the sand shell mold 30 Manufacturing the iron club head operation, as shown in FIG. 3 , it is to inject hot molten metal liquid into the sand shell mold 30 , wait until the metal liquid is solidified, break the sand shell mold, and take out the integrally formed club head 40 .

The above-mentioned manufacturing method can be used to manufacture an integrally formed club head 40, and directly form a back hole 41 on the back side of the club head 40, which is especially beneficial to make the back hole 41 into a deep hole shape (undercut) to lift the bar. The hitting performance of the head 40 may meet the product styling requirements. However, the above-mentioned method still produces the following process problems, for example: during the bonding operation, the body wax model 10 and the panel wax model 20 are usually filled with wax liquid on the surface of the interface. However, as shown in Figures 1a, 2a and 3a, when the gap filling is inaccurate, a gap a will be generated between the two wax patterns 10, 20, and the gap a will cause the grout to penetrate during grouting. As a result, after dewaxing, a burr b will be formed in the obtained sand shell mold 30, and after casting, the burr b will cause the club head 40 to form a gap c, which in turn reduces the casting of the club head 40 Finished product yield. On the other hand, as shown in Figure 1b, when too much wax liquid a' is used on the surface of the junction, although the solidified wax liquid a' can fill the gap a (as shown in Figure 1a), it will instead cause the junction Irregular protrusions are formed on the surface of the rod head 40 , which leads to the need for more complicated surface grinding process on the casting of the rod head 40 to be manufactured subsequently. In particular, if the irregular protrusions are formed at the junction of the back cavity 41 of the casting of the rod head 40, it is difficult for the workpiece to enter the back cavity 41, so the surface grinding process in the back cavity 41 will become extremely difficult. , resulting in a substantial increase in processing costs and prolongation of process time. Therefore, it is necessary to further improve the manufacturing method of the above known golf club head.

The present inventor proposes the manufacturing method of the golf club head of the present invention in view of the above-mentioned defects existing in the prior art.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method of manufacturing a golf club head, in which a bonding channel is reserved between a back cavity of a body wax mold and a faceplate wax mold, so as to ensure the quality of gap filling and the formation of golf club heads. The smooth bonding surface makes the present invention have the effects of reducing casting processing requirements, increasing the surface flatness of castings and improving the qualified rate of subsequent casting.

A method of manufacturing a golf club head according to the present invention, comprising the following steps: manufacturing a body wax mold and a faceplate wax mold, the body wax mold has a back cavity, and the back lip of the faceplate wax mold has a shoulder; initially Combining the body wax model and the panel wax model, and forming a bonding channel between the back cavity of the body wax model and the shoulder of the panel wax model; filling an adhesive into the bonding channel to bond The body wax mold and the faceplate wax mold form a club head wax mold; dip the club head wax mold into slurry to form a sand shell mold, and then heat and melt the sand shell mold for dewaxing; and use the sand shell mold for casting to A club head casting is produced.

The present invention overcomes the defects of the known technology, wherein a bonding channel is reserved between a back cavity of a body wax model and a panel wax model for filling an adhesive, because the bonding channel is beneficial to form a uniform Therefore, the present invention can indeed complete gap filling and form a flat bonding surface, thereby improving the pass rate of subsequent casting and increasing the flatness of the casting surface.

Description of drawings

Fig. 1 is the schematic diagram of the wax mold bonding operation of the known golf club head manufacturing method;

Figure 1a is a partial enlarged view of the known golf club head wax model shown in Figure 1;

Fig. 1b is another partial enlarged view of a known golf club head wax model;

Fig. 2 is a schematic diagram of the manufacturing sand shell mold operation of the known golf club head manufacturing method;

Fig. 2a is a partially enlarged view of the known golf club head sand shell mold shown in Fig. 2;

Fig. 3 is a schematic diagram of the iron club head manufacturing operation of the known golf club head manufacturing method;

Fig. 3a is a partially enlarged view of the known golf club head casting shown in Fig. 3;

Fig. 4 is a flow block diagram of the manufacturing method of the golf club head of the present invention;

5 is a schematic diagram of the first step of the manufacturing method of the golf club head according to the first embodiment of the present invention;

6 is a schematic diagram of the second step of the manufacturing method of the golf club head according to the first embodiment of the present invention;

Figure 6a is a partial enlarged view of Figure 6 of the present invention;

7 is a schematic diagram of the third step of the manufacturing method of the golf club head according to the first embodiment of the present invention;

8 is another schematic diagram of the third step of the manufacturing method of the golf club head according to the first embodiment of the present invention;

9 is a schematic diagram of the fourth step of the manufacturing method of the golf club head according to the first embodiment of the present invention;

10 is another schematic diagram of the fourth step of the manufacturing method of the golf club head according to the first embodiment of the present invention;

11 is a schematic diagram of the fifth step of the manufacturing method of the golf club head according to the first embodiment of the present invention;

12 is another schematic diagram of the fifth step of the manufacturing method of the golf club head according to the first embodiment of the present invention;

13 is a combined sectional view of the body wax mold and the club head wax mold in the method of manufacturing a golf club head according to the second embodiment of the present invention.

Explanation of reference numbers

10. Body wax model 11. Back point 12. Step part 13. Ring lip

20. Panel wax model 21. Shoulder 22. Vertical wall 30. Sand shell mold

31. Mold cavity 40. Rod head 41. Back hole 42. Body

43. Panel 44. Ring groove 50. Adhesive channel 51. Adhesive

100. Wax mold of club head a, clearance a', wax liquid a1, external clearance

a2. Internal clearance b. Burr c. Clearance

Detailed ways

In order to make the above and other objects, features, and advantages of the present invention more clearly understood, preferred embodiments of the present invention will be exemplified below and described in detail in conjunction with the accompanying drawings.

The manufacturing method of the golf club head of the present invention and some of its components are the same as the manufacturing method of the known golf club head in FIGS.

4 and 5, the first step of the manufacturing method of the golf club head according to the first embodiment of the present invention is to manufacture a body wax mold 10 and a panel wax mold 20, the body wax mold 10 has a back hole 11 , and the back lip of the panel wax pattern 20 has a shoulder 21 . Firstly, a suitable mold (not shown) is used to pour wax liquid to manufacture the body wax model 10 and the panel wax model 20 respectively. The body wax model 10 is provided with the back hole 11 , and the back hole 11 runs through the front and back of the body wax model 10 . The back cavity 11 further forms a stepped portion 12 on the front, and the inner diameter of the stepped portion 12 is roughly equal to the outer diameter of the panel wax model 20 . The panel wax mold 20 forms the shoulder 21 on the back lip, and the shoulder 21 has a vertical wall 22 , the outer diameter of the vertical wall 22 is obviously smaller than the corresponding inner diameter of the back pocket 11 .

4, 6 and 6a, the second step of the golf club head manufacturing method according to the first embodiment of the present invention is to initially combine the body wax mold 10 and the faceplate wax mold 20, and A bonding channel 50 is formed between the back hole 11 and the shoulder 21 of the panel wax pattern 20 . Based on the above dimensional design, the stepped portion 12 of the back cavity 11 of the body wax model 10 can be slightly melted, or a small amount of wax liquid can be pre-coated, so as to initially embed and bond the shoulder 21 of the panel wax model 20, and roughly form a A golf club head profile, and it may be a golf club head with an undercut. At this time, the body wax mold 10 and the panel wax mold 20 may respectively form an outer gap a1 and an inner gap a2 at the two ends of the junction, and at the same time, the outer peripheral surface of the vertical wall 22 of the shoulder 21 and the inner gap of the back cavity 11 The bonding channel 50 is formed between the peripheral surfaces, and the bonding channel 50 can cover the internal gap a2.

4, 7 and 8, the third step of the manufacturing method of the golf club head according to the first embodiment of the present invention is to fill an adhesive 51 into the bonding channel 50 to bond the body wax mold 10 and the panel wax pattern 20 form a club head wax pattern 100. After the body wax model 10 and the panel wax model 20 are pre-embedded and combined, then the adhesive 51 is filled into the bonding channel 50 from the back cavity 11 of the body wax model 10 . The adhesive 51 can be selected from wax liquid, resin, silica gel, hot melt, methyl cyanoacrylate, ethyl cyanoacrylate, other suitable adhesives and mixtures thereof, and preferably has high fluidity before curing. Since the adhesive channel 50 has enough space, the adhesive 51 can be smoothly filled in the adhesive channel 50 and surely cover the internal gap a2. In this way, after the body wax pattern 10 and the panel wax pattern 20 are combined to form the club head wax pattern 100 , the gap filling in the back cavity 11 of the club head wax pattern 100 can be ensured. According to the exact requirements of the product, the filling height of the adhesive 51 is preferably less than or equal to the depth of the adhesive channel 50 , that is, less than or equal to the height of the vertical wall 22 of the shoulder 21 . Since the bonding channel 50 can ensure the gap filling quality, a large external gap a1 and an internal gap a2 can be allowed to exist between the body wax pattern 10 and the panel wax pattern 20, so the wax pattern bonding process can be relatively simplified. . In addition, the front surface of the club head wax pattern 100 can also use the adhesive 51 to fill the outer gap a1.

4, 9 and 10, the fourth step of the golf club head manufacturing method according to the first embodiment of the present invention is to dip the club head wax mold 100 to form a sand shell mold 30, and then the sand shell mold 30 heating and melting for dewaxing. The club head wax mold 100 can be formed into the ceramic shell mold 30 through generally known techniques of zirconium slurry dipping and sand dipping. The sand shell mold 30 forms a cavity 31 and a sprue (not shown). Next, the sand shell mold 30 is heated and dewaxed. When the present invention selects adhesives 51 other than wax liquid, if the adhesives 51 cannot be removed by heating, an appropriate organic solution can be injected from the sprue after dewaxing to remove the remaining adhesives 51.

Referring to FIGS. 4 , 10 and 11 , the fifth step of the manufacturing method of the golf club head according to the first embodiment of the present invention is to use the sand shell mold 30 to perform casting to obtain a casting of the club head 40 . After the sand shell mold 30 is dewaxed to form a hollow mold cavity 31, molten iron is injected through the sprue, and after the molten iron is cooled and solidified, the sand shell mold 30 is crushed, so that a rod head 40 can be integrally formed. of castings. The club head 40 has a back cavity 41 , a body 42 and a panel 43 . As shown in Figure 7, if the filling height of the adhesive 51 is less than the height of the vertical wall 22 of the shoulder 21 (the depth of the bonding channel 50), then as shown in Figure 11, after casting, the panel A ring groove 44 is formed at the junction of the back side of 43 and the back cavity 41 without any gap. Since the annular groove 44 has better surface flatness, the need for surface grinding in the back pocket 41 can be reduced. At the same time, since the ring groove 44 connects the main body 42 and the panel 43 with a relatively thin thickness, the panel 43 can obtain better elastic deformation ability, which is beneficial to improve the hitting performance. The ring groove 44 can also be coated and covered by baking varnish according to product requirements, so as to further enhance the appearance of the back cavity 41 . On the other hand, even if a small number of irregular protrusions (not shown) are formed on the bonding interface of the front of the club head 40, since the front of the club head 40 is easy to perform surface grinding, the difficulty of the entire manufacturing process will not be excessively increased. Spend.

In addition, referring to FIG. 7, if the filling height of the adhesive 51 is selected to be equal to the depth of the bonding channel 50, then as shown in FIG. A flat surface can be directly formed at the junction of the back cavity 41 without any gap, which can further greatly reduce the need for surface grinding in the back cavity 41 .

Please refer to Figures 4 and 13, the manufacturing method of the golf club head according to the second embodiment of the present invention, compared with the first embodiment, the second embodiment uses the same bonding method to bond the body wax model 10 and the faceplate Wax model 20, but the body wax model 10 is directly supported by a ring lip 13 on the front and combined with the shoulder 21 of the panel wax model 20. The vertical wall 22 of the shoulder 21 of the panel wax model 20 also forms the bonding channel 50 together with the back cavity 11 of the body wax model 10, so as to fill the adhesive 51 smoothly and improve the flatness of the bonding surface. . Thereby, as shown in FIG. 11 , the club head 40 manufactured by subsequent casting can also form an annular groove 44 with a flat surface in the cavity 41 to increase the elastic deformation capacity of the panel 43 .

As mentioned above, compared with the conventional golf club head manufacturing method in FIG. 1 , when the two-piece wax molds 10 and 20 are bonded, it is easy to expose the gap a in the back cavity 11, which will affect the yield of subsequent casting products, etc. , the present invention shown in FIG. 4 forms the adhesive channel 50 in the back hole 11, which is really beneficial to use the adhesive 51 to seal the internal gap a2 and form a flat surface, so it can indeed improve Subsequent casting pass rate, increase the flatness of the casting surface, simplify the wax pattern bonding process, and also increase the elastic deformation capacity of the face plate 43 of the rod head 40 .

Although the present invention has been disclosed in detail using the aforementioned preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the scope of the appended patent application.

Claims (8)

1, a kind of manufacture method of golf driver head, it comprises the following step:

Make a body wax-pattern and a panel wax-pattern, this body wax-pattern has a back of the body cave, and the back side antelabium of this panel wax-pattern has a shoulder;

Preliminary this body wax-pattern of combination and panel wax-pattern, and between the shoulder of the back of the body cave of this body wax-pattern and panel wax-pattern, form a gluing conduit;

One adhesive agent is inserted this gluing conduit, form a bar head wax-pattern with this body wax-pattern of gluing and panel wax-pattern;

This bar head wax-pattern soaking paste is formed an arenaceous shell mould, and then this arenaceous shell mould heating and melting dewaxes; And

Utilize this arenaceous shell mould to cast, to make the foundry goods of a bar head.

2, the manufacture method of golf driver head as claimed in claim 1, wherein this adhesive agent can be selected from wax liquid, resin, silica gel, thermosol, Methyl 2-cyanoacrylate, cyanacrylate and composition thereof.

3, the manufacture method of golf driver head as claimed in claim 1, wherein the front and the back side of this body wax-pattern is run through in the back of the body cave of this body wax-pattern, forms an end difference in the front openings in this back of the body cave in addition, to support in conjunction with this panel wax-pattern.

4, the manufacture method of golf driver head as claimed in claim 1, wherein the front face surface of this body wax-pattern forms a ring lip, to support in conjunction with this panel wax-pattern.

5, the manufacture method of golf driver head as claimed in claim 1, wherein the packed height of this adhesive agent is less than the degree of depth of this gluing conduit.

6, the manufacture method of golf driver head as claimed in claim 5, wherein after casting, this bar capitiform becomes a back of the body cave and a panel, and the back side of this panel forms an annular groove at the intersection with this back of the body cave.

7, the manufacture method of golf driver head as claimed in claim 1, wherein the packed height of this adhesive agent equals the degree of depth of this gluing conduit.

8, the manufacture method of golf driver head as claimed in claim 1, wherein after dewaxing, this arenaceous shell mould can additionally inject an organic solution in addition, removes this residual adhesive agent with dissolving.

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