TWI241225B - 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 an opening shaped undercut configuration and a face-plate wax pattern having a step portion around its back side; initially combining the main-body wax pattern with the face-plate wax pattern, and defining a filling gap between an inner circumference of the opening and an outer circumference of the step portion; filling adhesive into the filling gap for combining the main-body wax pattern with the face-plate wax pattern to constitute a club-head wax pattern; sinking the club-head wax pattern into a ceramic liquid to form a ceramic shell, and then heating the ceramic shell to melt the wax pattern and discharging melting wax; and injecting melting alloy into the ceramic shell to integrally form a golf club head having an opening shaped undercut configuration.

Description

1241225 Said a amendment ___ Case No. 93106977 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a golf club head-body wax mold one back cavity and one panel two J two method, especially about And fill in the adhesive to form a flat c-seal-adhesive channel 'Make the surface flatness of the finished product ^ Table ®' and improve the performance of the club head [Previous technology] The manufacturing method of the conventional golf club head is revealed. The Republic of China No. 51 4574 Fg i / H " as shown in the figure, its ^ aH. ,, I 14 ^ 4 ^ Hui Fu Ductile iron head manufacturing method ", the monthly patent 'The method includes the following steps: []] 2 In addition, as shown in the figure, it is based on the first and the second part of the wax liquid, respectively. After the mold is opened, it is formed into a one-piece wax mold 10, 20, such as a body wax mold. And a panel wax mold 2〇 ^ [2], wax mold bonding operation, as shown in Figure i, it is a two-piece ant mold 10, 20 for the bonding operation, and the two pieces of independent 躐The mold 丨 20 is cemented into one body; [3], the sand shell mold 30 is dipped in the operation, as shown in the figure ^, it is in the second The wax mold 丨 〇, 20 is bonded to the surface to form a sand shell mold 30, and then the wax mold 1 〇, 20 is hot melted out, and the sand shell mold 3 〇 is formed into a cavity shape. The convex part is formed on the 3 Q side of the sand shell mold; and [4] The iron head manufacturing operation of the sand shell mold 30 is shown in FIG. 3, which involves injecting a molten metal solution into the sand shell mold. In 30, after the metal liquid 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 beneficial for making the back cavity 41 into a deep hole shape [undercut] 'to enhance the Head hitting performance of 40

Face C: \ Logo-5 \ Five Continents \ PK9419a. Ptc Page 7 1241225 Case No. 93106977 Revision V. Description of the invention (2) Or meet the product modeling requirements. Nonetheless, the above method still has the following process problems. For example, when performing the bonding operation, the body wax mold 10 and the panel pest mold 20 are usually filled on the surface of the junction with liquid soap. However, as shown in Figures 1a, 2a, and 3a, when the gap filling is not sure, a gap a will be generated between the two kan molds 10 and 20, and the gap a will cause the slurry to infiltrate during the impregnation. As a result, a burr b will be formed in the obtained sand shell mold 30 after dislocation, and after casting, the burr b will cause the head 40 to form a gap c, and the gap c further reduces the head 4 0% yield of casting products. On the other hand, as shown in Fig. 1, when too much wax liquid a 'is used on the surface of the junction, the cured liquid & can fill the gap a [as shown in Fig. 1 a]' π This caused the irregular formation of protrusions on the surface of the junction, which led to the subsequent complicated grinding of the head 40 castings. In particular, if the irregularity is formed at the junction in the back cavity 41 of the casting of the head 40, since the workpiece is difficult to enter the back cavity 41, the surface grinding in the back cavity 41 will become extremely difficult. , So that the processing cost and extension are greatly increased: Therefore, it is necessary to further improve the above-mentioned conventional golf club heads: 夂

In view of this, the present invention improves the above-mentioned disadvantages. An adhesive channel is reserved between the back hole of the middle and a wax mold of the panel for the injection of the f-mold. Filling a survey invention can indeed complete the gap filling and form a flat and sticky surface, so the casting yield and the flatness of the casting surface are increased. ^, And further improve the following [Content of the invention] X ° N The main purpose of the present invention is to provide a method for manufacturing a golf club head, which was revised in 1241225 ------ room j tiger 93〗 (1Rqt7 V. Description of the invention (3 ) 4 of the main body wax mold-4 pieces on the back side, in order to ensure that the gap between the wax molds of the interstitial product is reserved-the bonding groove has a bonding surface that reduces the need for casting processing. The effectiveness of the rate. S The flatness of the surface of the inner member and the subsequent steps of manufacturing the golf club head according to the present invention. Manufacturing-the body sacrificial mold and a panel ant; u includes the following step 2: and the back lip of the panel wax mold has A shoulder part π a back body wax mold and a panel sacrificial mold, and an adhesive groove 4 is formed between the books ^ 丄 仞 V group 5 and the shoulder; 4: a: M of the panel mold is bonded to the body Wax mold and panel creep, -adhesive channel, soil mold dipped into-sand shell template to mold the club head, and use the sand shell mold to cast one to make 3 melts: disengagement [Implementation] Cup head castings. In order to make the above and other objects of the present invention understood, the following two aspects of the present invention will be specifically cited. The "Ming formula" is described in detail as follows. The manufacturing method of the golf club head of the present invention and some components of the conventional golf club head J3 are shown in the accompanying drawings. Therefore, the same drawing numbers are used to indicate the structure and function. No more detailed description. # 刀 Please refer to Figures 4 and 5, the first step of the manufacturing method of the first embodiment of the present invention is to manufacture a body wax mold 10 and-^ 20, the body wax Mold! 〇 has a back hole n, the lip of the panel mouse branch has a shoulder 21. First, the appropriate use; with [unwaxed liquid, to manufacture the body wax mold 10 and the panel wax mold 2 respectively. The body wax

C: \ Logo-5 \ Five Cont i nents \ PK9419a.ptc Page 9 1241225 Case No. 93106977 Rev. V. Description of the Invention (4) The mold 10 is provided with the back cavity 11 and the back cavity 11 runs through the The front side and the side of the main body wax pattern. The back cavity 11 further forms a stepped portion 12 on the front surface, and the inner diameter of the stepped portion 12 is substantially equal to the outer diameter of the panel wax mold 20. The panel wax mold 20 forms the shoulder 21 on the back lip. The shoulder 21 has a vertical wall 22, and the outer diameter of the vertical wall 22 is significantly smaller than the corresponding inner diameter of the back cavity 11. . Please refer to Figs. 4, 6, and 6a. The second step of the method for manufacturing the golf club head according to the first embodiment of the present invention is to initially combine the body wax mold and the panel wax mold 20 'and wax the body wax. An adhesive groove 50 is formed between the back cavity of the mold 10 and the shoulder 21 of the panel wax mold 2. Based on the above size design, the stepped portion 12 of the back cavity 11 of the main body wax mold 10 can be slightly melted, or a small amount of wax liquid can be applied in advance to initially embed and bond the shoulder portion 2 of the panel wax mold 20, A contour of a golf club head is generally formed, and the golf club head may have an undercut shape. At this time, the body wax mold 10 and the panel mold 20 may be formed at the two ends of the junction—the outer gap “and the inner gap P 2 a 2”. On the same day, the outer surface of the shoulder 2 and the wall 22 will be guarded. The bonding channel 50 will be formed between the inner peripheral surface of the back hole and the back hole, and the 0 may contain the internal gap a 2. Shi Yue 1 ginseng: ΐ V: and 8 shown in the figure '* invention [Example The third step of the manufacturing method of the golf head is to fill an adhesive 51 with the adhesive groove I: 0 Nine adhesives-the body wax mold 10 and the panel wax mold 20 are formed-the head wax mold. In the main body mold 10 and the panel soil mold 50, acrylic acid methyl acetate and cyanoacrylic acid are inserted from the back hole of the mold 10, and the adhesive 51 is filled into the bonding channel. The adhesive 51 Can be selected from soil fluid, resin, stone gum, gelatin, cyanide, other suitable adhesives and their mixing purpose

Page 10 1241225 ------- Γ t #. 9310RQ77 Correction

5. Description of the invention (5) Mouthpiece, and it has more space than _50 before curing, so # ς ^ 动 性. Since the adhesive channel is inside the channel channel, it is indeed covered: 1 second mold 10 and panel wax mold 20 are inserted into the gap 7 a2. In this way, a dish can be placed in the back hole η of the wax mold 100 of the body; after the head mold 100, the head soil should adhere to the south of the j 5 埴 Yougu: wide into a real gap. According to the precise requirements of the product, the depth, i, is less than or: mv, the bonding channel 50 equal to or equal to 50 of the bonding channel can determine the height of the vertical wall 22 that captures ^ μmonth ^ 卩 1. Due to the existence of quality between the molds 20, the body wax mold 10 and the panel wax are relatively outward: rr internal side Xuan π W m4 # 得 里 私 In addition, the 'face wax mold 1 0 0 can also use this The adhesive agent 51 fills the outer gap "." = "4: ,,!, And 10 shown in the figure" The fourth step of the golf-knowledge method of the first embodiment of the present invention is the first step of dipping the wax mold of the club 100. Μ '二: 30, and then the sand shell mold 30 is heated and smelted for decontamination. The rod 氱 head, 100 can be formed by the conventional dipping and sand dipping techniques to form the ceramic shell 30. The sand shell mold 30 forms a cavity 31 and a pouring port [not shown]. Then, the sand shell mold 30 is dewaxed by heating. When the present invention uses an adhesive 51 other than a wax liquid, if it is heated, If the adhesive 51 cannot be removed, after dewaxing, an appropriate organic solution can be injected through the pouring port to remove the remaining adhesive 5 j. Please refer to Figs. 4, 10 and 11, the first of the present invention The fifth step of the method for manufacturing a golf club head of the embodiment is to use the sand shell 30 mold for casting to obtain a club. The casting 40 is formed of a hollow shell in the sand mold after 3〇 dewaxing mold cavity 31 'is then injected into the molten iron through the spout, the cooled and solidified molten iron

1241225 —--- t ^ J31〇6977 May 5th, the description of the invention (6) One? -------- After the transformation, the crushed sand shell mold 30 was crushed, so that it can be integrally formed. A casting of the head 40 is obtained. The head 40 is provided with a back cavity 41, a body ", and a panel 43. As shown in Fig. 7, if the filling height of the adhesive 51 is smaller than the height of the vertical wall 22 of the shoulder 21 (the bonding Depth of the channel 50], as shown in Figure η after casting, the junction of the back surface of the panel 43 and the back cavity 41 is raised into a ring groove 4 4 without any gap. The ring groove 44 has a better surface flatness, which can reduce the need for surface grinding processing in the back cavity 41. At the same time, because the ring groove 44 only connects the body 42 and the panel 43 with a relatively thin thickness, The panel 43 can obtain better elastic deformation energy f, which is conducive to improving the hitting performance. The ring groove 44 can also be coated and covered by means such as baking paint in order to further increase the back = Appearance within 41. On the other hand, even if the joint interface on the front face of the head 40 forms >,... Irregular protrusions [not shown], but the surface of the head 40 is easy to be surface polished. , So it does not excessively increase the difficulty of the entire system 1. In addition, referring to Figure 7, If the filling height of the adhesive 5 丨 is selected to be equal to the depth of the bonding channel 50, then as shown in Fig. 12, after $ 仏 'violates the back of the panel 4 3 and the back cavity 41 The junction can directly form a flat surface without any gap, which can further greatly reduce the need for surface grinding processing in the 1 back cavity. Please refer to t = Figures 4 and 13, the second embodiment of the present invention Compared with the first embodiment, the manufacturing method of the golf club head uses the phase = adhesion method to adhere the body wax mold 10 and the panel wax mold 20, but the body wax right 10 is directly used. One ring lip on the front 3 supports the panel wax pattern 2

Revision 21 of f. The vertical wall 22 on the shoulder 21 of the panel wax pattern 20 also forms the bonding channel 50 with the back cavity 11 of the body wax pattern 1-0, so as to fill the adhesive agent 51 evenly, and increase The flatness of the adhesive surface. With this, as shown in FIG. 丨 丨, the club head 40 subsequently cast and manufactured in the same manner can also form a ring groove 44 with a flat surface in the back cavity 41 to increase the elastic deformation capacity of the panel 43. As described above, compared to the manufacturing method of the conventional golf club head in FIG. 1, when the one-piece molds 10 and 20 are bonded, the gap a ′ is easily exposed in the back cavity 11, which affects the yield of subsequent casting products. The disadvantage of the present invention is that the adhesive channel 50 is formed in the back cavity 11, which is really conducive to 'adhesion', the agent 51 seals the internal gap a2 and forms a flat surface, so It can indeed improve the subsequent casting yield, increase the smoothness of the surface of the casting, and the joint processing process. At the same time, it can also increase the strength of the rod. Although the present invention has been disclosed in detail using the foregoing preferred embodiments, Zhi Zhiyi 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. The protection scope of the present invention shall be determined by the scope of the attached patent application. also

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No. 1241225 Case No. 93106977 Date Modified Simple Description [Simplified Illustration] Figure 1: Schematic diagram of wax mold bonding operation of the conventional golf club manufacturing method. Figure 1a: Partially enlarged view of Figure 1 of a conventional golf club head wax mold. Figure 1b: Another partial enlarged view of the wax pattern of a conventional golf club head. Figure 2: Schematic diagram of the sand shell mold manufacturing process of the conventional golf club head manufacturing method. Figure 2a: Partially enlarged view of Figure 2 of a conventional golf club sand shell mold. Fig. 3: Schematic illustration of iron head manufacturing operations using the conventional golf club head manufacturing method. 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. Fig. 5: Schematic diagram of the first step of the manufacturing method of the golf club head according to the first embodiment of the present invention. 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.

C: \ Logo-5 \ Five Continents \ PK9419a. Ptc Page 14 1241225 Case No. 93106977 Revised Schematic Brief Description Figure 10: The fourth step of the method for manufacturing a golf club head according to the first embodiment of the present invention Another schematic. Fig. 11 is a schematic diagram of the fifth step of the method for manufacturing a golf club head according to the first embodiment of the present invention. Figure 12: Another schematic view of the fifth step of the method for manufacturing a golf club head according to the first embodiment of the present invention. Figure 13: 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. Description of drawing number: 10 body wax mold '11 back cavity 12 step 13 ring lip 20 panel wax mold 21 shoulder 22 vertical wall 30 sand shell mold 31 mold cavity 40 club head 41 back cavity 42 body 43 panel 44 ring groove 50 adhesive Slot channel 51 Adhesive 100 Head wax pattern a Clearance a 'Wax liquid al External clearance a2 Internal clearance b Unfinished c Clearance

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Claims (1)

1241225 Case No. 9310M77 6. Scope of patent application 1. A method for manufacturing a Nanlf club head, including the following steps: Manufacturing a body wax mold and a panel wax mold, the body wax mold having a back cavity, and the panel wax mold The back lip has a shoulder; the body wax mold and the panel wax mold are initially combined, and an adhesive channel is formed between the back cavity of the body wax mold and the shoulder of the panel wax mold. · Will: Adhesive Fill the bonding channel 'to bond the body wax mold and the panel soil mold to form a club head mold; dip the club head ant mold to form a sand shell mold, melt for dewaxing; and use the sand thermally The shell mold is cast to obtain-the head of the club, according to the scope of patent application! In the golf club head, the adhesive may be selected from the group consisting of wax solution, resin, and silicon gel: acetic acid, ethyl cyanopropionate and mixtures thereof, and glue, rat-based, according to the scope of the patent. Secondly, the back of the back cavity two = opening through = € mold front and back of the panel wax mold. ’&Amp; ladder section’ to support the combination, according to the scope of patent application! The front face of the wax model of the worker's high school. The surface is made into 1 lip to support and combine the manufacturing method of the adhesive in the ancient 碥 4Lu 1 in the first scope of the patent application, which is based on the depth of the connecting channel in the first scope of the patent application. After the casting, the manufacturing method of the club head and the head is the opening and closing of the moon point and-panel, the panel C: \ Logo-5 \ Five Continents \ PK9419a. Ptc page 16 1241225 _ case number 93106977_year Month correction_ 6. The back of the scope of patent application forms a ring groove at the junction with the back hole. 7. The method for manufacturing a golf club head according to item 1 of the scope of patent application, wherein the filling height of the adhesive is equal to the depth of the bonding channel. 8. The method for manufacturing a golf club head according to item 1 of the scope of patent application, wherein after dewaxing, the sand shell mold can be additionally injected with an organic solution to dissolve and remove the remaining adhesive. C: \ Logo-5 \ Five Continents \ PK9419a.ptc Page 17