TWI229612B - Manufacturing method for a golf club head - Google Patents

Abstract

A manufacturing method for a golf club head comprises the following steps: forming a main-body wax pattern having a first connecting portion and an accessory wax pattern having a second connecting portion; initially combining the first connecting portion of the main-body wax pattern with the second connecting portion of the accessory wax pattern, and defining a filling gap between the first connecting portion and the second connecting portion; filling a low-viscous volatilizable solvent into the filling gap for melting the wax material that adheres the accessory wax pattern to the main-body wax pattern to form a club-head wax pattern; sinking the club-head wax pattern into a slurry to form a ceramic shell, and then heating the ceramic shell to melt the wax pattern and discharge it from the ceramic shell; and injecting melting alloy into the ceramic shell to integrally form a golf club head.

Description

1229612 Case number M1? Nrn

V. Description of the invention (1)

[Technical field to which the invention belongs I. The present invention relates to a golf club head that uses high volatility, which is volatile :: In addition, the gap between the molds so as to form a flat surface; Furthermore, the manufacturing method of the surface flatness of the casting product of Dejing Jing is improved. ,, Ganshuo [Previous technology]

'Manufacturing method of white 2elf club heads, _Revelation of the Republic of China No. 51 4574 "Manufacturing method of golf iron heads" with reference to the figure shows the invention patent, the method includes the following steps: [1], two-piece "Wax molds" 10 and 20 respectively, as shown in Figure i, they are attached to the first mold and the second mold γ (not shown), respectively, injecting liquid soap to form a two-piece type. Wax molds 10 and 20, such as a body wax mold 10 and a panel wax mold 20; [2] The wax mold bonding operation, as shown in Figure 1, is a two-piece type

The wax molds 10 and 20 are bonded, and two separate wax molds 10:20 are bonded together; [3], the sand shell mold is dipped into the slurry, and the operation is as shown in section g. The two-piece pier molds 10 and 20 are cemented together to form a sand shell mold 30, and then the wax molds 10 and 20 are melted and poured out, and a convex portion corresponding to the shape of the back cavity is formed in the sand shell. And the washing and casting port is formed on the 30 side of the sand shell mold; and [4] The iron head manufacturing operation of the sand shell mold 30 is shown in Fig. 3 ... It is the injection of hot-melt metal liquid into the sand shell mold 30, After the molten metal is solidified, the sand shell mold is broken, and the integrally formed club head 40 is taken out. The above manufacturing method can be used to manufacture the integrally formed club head 40, and a back cavity 41 is directly formed on the back of the club head 40, which is particularly conducive to making the back cavity 41 into an undercut to enhance the The hitting performance of the head 40 may meet the requirements of product modeling. Bone like this ’The above method still yields the following system

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1229612 V. Description of the invention (2) Process problems, such as: during the bonding operation, the body wax mold 10 本体 mold: 0 is usually filled on the surface of the junction with the mash. However, as shown in the plates la, 2a and 3a, when the gap filling is not sure, a gap 3 will be created between the two wax patterns, and the gap & causes the slurry to infiltrate during the immersion. After dewaxing, a burr will be formed in the obtained sand shell mold 30, and after ^, the burr b will cause the club head 40 to form a gap c, and the door * 4 lowers the club head 40% yield of casting products. On the other hand, = 2 and then = ’soil? A filler a may be further used in the manufacturing process, [for example, wax solution diagram = month, silicone or hot melt] to fill the gap a at the junction. However, 桠 Filler a, usually has a higher viscosity, such as wax at 100,1 ,,. Due to the 100 cps or more, the filler a is not only difficult to achieve a capillary filling degree, but also easily cools and solidifies on the surface of the a within 10 to 20 days. As a result, although the filler a can fill the gap 3, leaving irregular protrusions on the surface of the gap trading boundary, which leads to the production of 40 pieces (not shown), which requires more complicated surface research. The reason is that if the irregular protrusions are formed on the head 40, a caster will be formed. At the junction, because it is difficult for the workpiece to enter the back hole 4m, the surface grinding process within 41 of the moon hole 41 will become extremely difficult. = To large = this back hole cost and prolong the processing time. Therefore, there is a substantial increase in the manufacturing methods of golf club heads. vImproving the above-mentioned custom In view of this, the present invention improves the above-mentioned disadvantages. 1 After the main body wax mold and an accessory wax mold, a combination of the high-fluidity solvent and the high-fluidity solvent ^ Dissolve into the inside with a volatile gap, and properly volatilize after bonding without residue and adhesion

C: \ Logo-5 \ Five C〇ntinents \ PK9521a.ptc invention can complete the gap filling and form a flat sticky pile two s ". By this, this --- __ ^ surface, into the soil filling mold 93. ! 〇2 3! Said amendment 1229612 ^ ----- ~ No. 1 93120771 V. Description of the invention (3)-^ Quality, surface flatness of gain head castings and improvement of subsequent casting [Content of the invention] ί t 2 The main purpose is to provide a method for manufacturing golf club heads. The gap between the sound object = wax mold and an accessory wax mold is one of the most volatile i: Ί ίϊ ί: right: to ensure the quality of gap filling and The formation of flat bonding quality, the need to reduce the quality of the wax mold, reduce the need for 7 wax molds, increase the flatness of the wax mold combined product surface, reduce the surface processing requirements of the head castings, and improve the subsequent casting yield. This and the first step = manufacturing method of a golf club head, which includes the following steps-a body mold and an accessory mold, the body mold has a first mold, the mold has-the first, the joint; the preliminary combination The first: ii: the joint part and the second joint part of the accessory butterfly mold, and a gap is formed in the dynamic solution. Combining the volatile-Thai ^ itself, the body butterfly mold and the accessory mold, the f and the rod material are combined with each other into a club head wax mold; the rod is a sand shell mold, and then the sand shell mold is heated ^ The thorn = ^ / mold is used to cast to obtain a casting of a club head. The mouse is removed and the sand shell is used. [Embodiment] In order to make the above and other objects of the present invention truly understood, the present invention will be specifically described below. The implementation method is better, and the formula is described in more detail as follows. The method of manufacturing the golf club head of the present invention and the conventional golf club head manufacturing method shown in Fig. 3 are the same as those in the first figure and the same drawing number are used. Mark, its structure and function are no longer detailed. Part III follows the brainshed country II BW & na ---, a

Page 9: C: \ Logo-5 \ Five Continents \ PK9521a.ptc 1229612 Case No. 93120771__ 93. Day _ ^ _____ V. Description of the Invention (4) Please refer to Figures 4 and 5 for the first embodiment of the present invention. The first step of the golf club head manufacturing method is to manufacture a body wax mold 10 and a accessory wax mold. The body wax mold 10 has a first joint portion 12 and the accessory butterfly mold has a second joint portion 21. . First, use appropriate molds [not shown] to infuse the wax solution to manufacture the body wax mold 10 and the required accessory wax molds, respectively. The body wax mold 10 constitutes the main structure of the wax mold of the golf club head, and has a back cavity 11 that can penetrate the front and back of the body wax mold 10. The front surface of the back hole 11 forms a step-like first joint portion 12. The accessory wax mold belongs to a panel mold 20, and a lip on the back thereof is used as the second joint portion 21. Generally, the stepped inner diameter of the first joint portion 12 is only slightly larger than the outer diameter of the panel wax mold 20 [accessory butterfly mold]. Please refer to Figs. 4, 6, and 6a. The first step of the method for manufacturing a golf talent head according to the first embodiment of the present invention is a preliminary combination of the first joint portion 12 of the main body 4 rat hibiscus 1 0 and the wax mold of accessories Panel wax mold 20] of the second joint portion 21 factory, and a gap a1, a2 is formed between the first and second joint portions 12 and 21. The second joint portion 21 that is used to bond the accessory wax mold [panel wax mold 20] is initially embedded to form the outline of the golf club head, and the back hole 11 can be formed into an undercut. At this time, the body wax mold 10 and the accessory butterfly mold [panel wax mold 20] may form an outer gap al and an inner gap a2 on the front and back of the junction, respectively. Xi

Please refer to FIGS. 4, 7 and 8. The third step of the method for manufacturing a golf club head according to the first embodiment of the present invention is to fill a gap a1, a2 with a volatile high-flow β dynamic solvent 50. Inside, so that the main body wax mold 10 and the accessories can be used [panel wax mold 20] by using the wax material itself to combine them into one rod * mouse mold ', 100. The high-fluidity solvent 50 can be selected from the back cavity of the body wax mold 丨 〇

C: \ Logo-5 \ Five Continents \ PK9521a.ptc Page 10 1229612 Case No. 71 71 V. Description of the invention (5) 03.12, 2 In March, the amendment 11 is filled in the internal gap a 1 or can be changed by The front side of the main body wax mold 10 is directly filled with the external gap a2. The high-fluidity solvent 50 may be selected from volatile organic solvents having a viscosity of less than 5 cps, such as aromatic hydrocarbon solvents, aliphatic hydrocarbon solvents, and cyclofiring hydrocarbon solvents, and is preferably selected from toluene, xylene, and propane. Thorium, petroleum scales, n-pentane, n-hexane, bromopropane, banana water and mixtures thereof. As shown in FIG. 7 'Although the main body wax mold and the accessory wax mold have been fitted to each other', the high fluidity solvent 50 can take advantage of its low viscosity and easily penetrate into the internal gap al or Inside the outer gap a2. Next, as shown in FIG. 8 ', after standing for a while, the highly fluid solvent 50 will slightly dissolve.

The viscosity of the inner wall al or the outer wall of the outer gap a2 is increased when the highly fluid solvent 50 is mixed with the pest material, for example, the viscosity can be increased to more than 100cps at room temperature 25 ° c. Capillary phenomenon gradually occurs between a2, so that the wax fills the gaps al, a2. At the same time, since the high-fluidity agent 50 will volatilize by itself, the body wax mold and the accessory wax mold [panel wax mold 20] actually only need to use its own wax material to form a bonding structure 51 for supply. Fill in the internal clearance al or the external clearance a2, so that the club head mold 1 0 0 ′ can be formed and the surface flatness at the junction can be ensured. In addition, by using the 咼 fluidity solvent 50 to combine, a large external gap & 1 and an internal gap a2 can be allowed between the body wax pattern 丨 〇 and the panel wax pattern 〇, and the maximum distance between them can reach 0. 3mm, so it can also reduce the precision requirement of wax molds. In addition, when the high-fluidity solvent 50 is filled, although the high-fluidity solvent 50 may accidentally stain the surface of the main body wax pattern 10 or the panel wax pattern 20, but because the high-fluidity solvent 50 contacts The air can volatilize quickly, so it will not dissolve the surface wax material or cause defects on the surface of the wax mold. Say

1229612 V. Description of the invention (6) 93.12. 2 3 93120771

Please refer to Figs. 4, 9 and 10, the fourth step of the method for manufacturing a golf club head according to the first embodiment of the present invention is to soak the club head wax mold into a sand shell mold 30, Then, the sand shell mold 30 is dewaxed by heating. The club head bad mold 100 can be formed into the sand shell mold 30 (ceramic shell) through a conventionally known technique of dipping zirconium slurry and dipping sand. The sand shell mold 30 forms a cavity 31 and a pouring port [not shown]. After the sand shell mold 30 is indeed dried and hardened, the sand shell mold 30 is subjected to heat removal% 'to remove the rod head 4 rat mold 100 in the mold cavity 31. Since the high-fluidity solvent 50 used in the present invention has been volatilized into the atmosphere from the head wax mold 100 beforehand, after heating and dewaxing, there will not be any residual adhesive in the cavity 31, so it will not cause Increase the operational difficulty of the dewaxing process. _

Please refer 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 30 mold to cast to obtain a club head 40. casting. After the sand shell mold 30 is released, the hollow mold cavity 31 is formed, and then molten iron is poured into the cavity 31. After the molten iron is cooled and solidified, the sand shell mold 30 is crushed. In this way, a casting of a club head 40 can be integrally formed. The club head 40 is provided with a back hole 41, a body 42 and a face plate 43, and the back hole 41 can be formed into a deep hole shape as required. As shown in Fig. 11, after casting, there will be no gap at the interface between the back surface of the panel 43 and the back cavity 41. Because of the better surface flatness, the need for surface grinding in the back cavity 41 can be reduced. The back cavity 41 can also be coated and covered by baking paint according to product requirements to further enhance the appearance of the back cavity 41. On the other hand, even though the front face of the head 40 has a small number of irregular protrusions (not shown) at the joint interface, the front face of the head 40 is easy to be surface-polished from the outside, so it will not be overburdened.

C: \ Logo-5 \ Five Continents \ PK9521a.ptc Page 12 Amendment 5. Description of the invention α) Increase the difficulty of the whole process. Gower of the second embodiment The second embodiment is a die along a die, and the accessory is larger in the back cavity 11 than the sealing wax. The first joint portion 14 and the second joint portion 61 are formed. The joint portion 61 can be combined to form a joint structure between the two [its invention can be used to fill in the seal, and then the wax mold 60 that is used to properly seal the wax head 60 is used to seal the obtained head 40. One accommodation room 44. On the other hand, if the opening is above, what is the matter?

In other words, referring to Figs. 4, 12, and 13, as shown in Fig. 4, the manufacturing method of the J-th cup head of the present invention, compared with the first embodiment, the main wax molds 10 and 1 are bonded by the same bonding method. The worm model is a closed wax model 60. A through hole 13 is formed in the lower half of the body wax mold 10, and the depth of the through hole 13 is the thickness of the mold 60. A part of the inner wall of the through-hole 13 is formed while the outer peripheral surface of the wax mold 60 for sealing is correspondingly formed as shown in FIG. 12. The second wax of the wax mold 60 for sealing is tied to the body wax mold 1. The first joint portion 4 of the through hole 13 is formed into a gap so as to use the high-fluidity solvent 50-shaped bonding method. Please refer to FIGS. 7 and 8]. As a result, the gap between the main body wax mold 10 and the sealing wax mold 60 has a smooth surface at the interface. Since the depth of the through hole 13 is larger than the thickness of 60, the wax mold 60 for closing can be opened below or above as required. For example, if the opening is opened below the through hole 13, the lower half of the back cavity 11 will be integrated to form an opening upward through dewaxing and casting. If the closing mold 60 is used to close The through-hole 1 3 head 40 casting will form a container 4 4 with an opening facing downward. No. 44 can be used to accommodate other heterogeneous material accessories, such as or shock-absorbing blocks with high shock absorption. As described above, compared with the manufacturing method of the conventional golf club head shown in FIG. 1, when the two-piece molds 10 and 20 are bonded, it is easy to expose a in the back cavity 11, which affects the yield of subsequent casting products. And other shortcomings, go to Figure 4 s' -------- on the invention of LI

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1229612 —-luxury number 93120771 V. Description of the invention (8) Use the internal clearance a2 of the first and second joining edges of the wax mold of the high-flow accessory in the back cavity 11 to form a flat surface and reduce the club head. Yield is required for the bonding process and reducing the accuracy of the wax mold. The solvent 50 combined with the body wax mold 丨 〇 and the parts 1 2 and 21 is really beneficial to the sealed interface surface, so it can indeed increase the casting surface processing requirements, simplify the wax mold requirements, and then increase the club head 4 〇 Casting Although the present invention has been disclosed in detail using the foregoing preferred embodiments, it is not limited to the present invention. Any person skilled in the art can make various changes and modifications without departing from the scope and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the appended patent application.

C: \ Logo-5 \ Five Continents \ PK9521a.ptc Page 14 1229612 Case No. 93120771 Simple illustration of the diagram [Simple illustration of the diagram] Brother 1 picture · Schematic diagram. Fig. 1a Fig. Lb Fig. 2: Schematic diagram of the wax mold bonding operation of the conventional manufacturing method of the Nanlf club head • Partial enlarged view of the first figure of the conventional Nanlf club head wax model. : An enlarged view of another part of a conventional golf club wax model. Sand golf mold manufacturing method of conventional golf club head manufacturing process Figure 2a: Partial enlarged view of the second map of sand golf mold of conventional golf club head 0 Figure 3 · Iron club head manufacturing method of conventional golf club head manufacturing method Schematic diagram of the operation. Figure 3a: Partial enlarged view of Figure 3 of a conventional golf club head casting. FIG. 4 is a flow block diagram of a method for manufacturing a golf club head according to the present invention. Figure 5: Schematic diagram of the first step of the present invention. Manufacturing method of golf club head of an embodiment

Fig. 6 is a schematic diagram of the second step of the method for manufacturing a golf club head according to the first embodiment of the present invention. Figure 6a: A partially enlarged view of Figure 6 of the present invention. Fig. 7 is a schematic diagram of the third step of the method for manufacturing a golf club head according to the first embodiment of the present invention. Fig. 8 is another schematic diagram of the third step of the method for manufacturing a golf club head according to the first embodiment of the present invention. Fig. 9 is a schematic diagram of a fourth step of the method for manufacturing a golf club head according to the first embodiment of the present invention.

1229612 Case No. 93120771 93 2 ° Month and month correction Amendment of the drawing Brief description Fig. 10: Another schematic diagram of the fourth step of the method for manufacturing a golf club head according to the first embodiment of the present invention. FIG. 11 is a schematic diagram of a head casting in the fifth step of the method for manufacturing a golf club head according to the first embodiment of the present invention. Fig. 12: A sectional view of a combination of a body wax mold and a head wax mold of a method for manufacturing a golf club head according to a second embodiment of the present invention. Fig. 13 is a schematic diagram of a head casting of a method for manufacturing a golf club head according to the second embodiment of the present invention. [Description of main component symbols] 10 Wax mold 11 Back cavity 12 First joint 13 Through hole 14 First joint 20 Panel wax mold 21 Second joint 30 Sand shell mold 31 Mold cavity 40 Head 41 Back cavity 42 Body n, 43 Panel 44 Reservoir 50 High fluidity 51 Bonding structure 60 Closed wax mold 61 Second joint part 100 Head wax mold a Clearance a, Filler a 1 C Outer clearance a2 Inner clearance b Flash

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Claims (1)

1229612 Cover No. 93120771 93.12, 2 3 i June 6, after applying for the scope of the patent, Yulf's head manufactures a body wax mold 'and the body's initial settlement will be 2 4 The joint part in the step-by-step combination part has a volatile wax mold; the head is heated and stripped with the sand to apply for the high current. 0 to apply for the South Stream, cyclopentane, apply for the accessory, apply for the front of the body. And in one of the properties and accessories, dip the wax; and shell molds into the profit range of the dynamic solvent range of dynamic hydrocarbon soluble n-hexaneley range of the mold system of the profit range of the wax model back. The manufacturing method includes the following steps: and an accessory wax mold, the body wax mold has a first accessory butterfly mold having a second joint, the first joint of the insect sigh mold, and the second first and second parts of the soil mold. A gap is formed between the joints; a high fluidity solvent is filled into the gap, so that the wax mold uses its own wax material to combine with each other to form a club head slurry to form a sand shell mold, and then the sand shell mold is cast to obtain The head of Nanlf's head of item 1 is a golf club head of item 2 with a viscosity lower than 5 cps. The agent can be selected from aromatic hydrocarbon solvents, toluene, xylene, propane, bromopropane, Banana water and its 1st round club head is a one-panel mold. Item 4 of the golf club head forms a back hole, which is a prayer piece. Manufacturing method, its volatile organic soluble manufacturing method, _, aliphatic hydrocarbon ketone, petroleum scale, mixture. Manufacturing method, US manufacturing method, which wears the body soil mold 6. Manufacturing method of golf club head according to item 5 of the patent application scope, which 1229612 Case No. 93120771 93, 12. 2 S _ ^ VI. Patent application scope / The back acupoint system forms a deep hole shape. 7. The method for manufacturing a golf club head according to item 5 of the scope of the patent application, wherein the front side of the back cavity is formed with the first joint portion; and the back lip of the panel wax mold is correspondingly formed with the second joint portion. The first joint portion of the body wax pattern can be used to combine the second joint portion of the panel wax pattern, and the gap is formed between the two for the injection of the high-fluidity solvent. 8. According to the manufacturing method of the golf club head according to item 1 of the scope of the patent application, the accessory soil model is a closed mold. 9. The method for manufacturing a golf club head according to item 8 of the scope of the patent application, wherein the body mold is formed with a through hole in the lower half, the depth of the through hole is greater than the thickness of the wax mold for sealing, and the part of the through hole The inner wall system forms _ the first joint portion; and the outer peripheral surface of the closing mold corresponds to the second joint portion. The first joint portion of the body wax mold can be used to combine the second joint of the closing butterfly mold. And a space between the two is formed for injecting the high-fluidity solvent D 1 0 according to the method of manufacturing a golf club head according to item 9 of the patent application scope, wherein the sealing wax mold closes the body wax The lower opening of the through hole of the mold, so the club head casting obtained after dewaxing and casting forms a receiving chamber with an opening facing up in the lower half. 11. The method for manufacturing a golf club head according to item 9 of the scope of the patent application, wherein the sealing wax mold closes the upper opening of the through hole of the body wax mold, so the club head made after dewaxing and casting is cast below The half forms a receiving chamber whose opening faces downward.