CN1876271A - Golf club head and its wax mold manufacturing method - Google Patents

Abstract

A method for manufacturing a golf club head and a wax mold thereof comprises the following steps: prefabricating a first wax mold part by using a first mold group, wherein the first wax mold part is provided with a combining part; placing the first wax mold part into a first mold cavity of a second mold set, wherein the first mold cavity substantially corresponds to the shape of a first part of a preset club head; injecting wax liquid into a second mold cavity of the second mold set, wherein the second mold cavity substantially corresponds to a second part shape of a preset club head; and cooling the wax liquid in the second mold cavity to form a second wax mold part, wherein the second wax mold part is integrally combined with the combining part of the first wax mold part, so that a club head wax mold is formed together for precisely casting a club head casting. Therefore, the invention can form a flat wax mold combination surface, thereby increasing the wax mold combination quality, improving the surface flatness of the club head casting and improving the excellent rate of subsequent casting, simultaneously relatively simplifying the structure of the wax mold, reducing the complexity of the manufacturing process and reducing the mold opening cost.

Description

Golf club head and its wax mold manufacturing method

technical field

The present invention relates to a manufacturing method of a golf club head and its wax model, in particular to prefabricating a first wax model part, and the first wax model part is combined with a second wax model part by direct injection of wax in a mold group. The wax mold part is used to make an integrally formed club head wax mold, thereby improving the manufacturing method of the subsequent club head casting quality.

Background technique

A method for manufacturing a conventional golf club head and its wax pattern, comprising the steps of: (1) making a wax pattern mold, and pouring wax liquid into the cavity of the wax pattern mold to form a club head after the mold is opened Wax model; (2) Dip the rod head wax model into a sand shell mold, then heat the sand shell mold, pour out the wax liquid hot melt, so that a mold cavity corresponding to the shape of the rod head is formed in the sand shell mold (3) inject hot-melt molten metal into the sand shell mold until the molten metal is solidified, break the sand shell mold, and then take out a rod head body, which has a joint; (4) Choose to use the above-mentioned lost-wax casting or conventional forging, machining and other processes to further manufacture a club head accessory, such as a striking panel; and (5) choose to weld, glue, press-fit, insert, screw, etc. (hitting panel) is combined on the joint portion of the club head body to form a golf club head.

The manufacturing method described above is to manufacture golf club heads in a multi-piece assembly. However, the method of separately manufacturing the club head body and the club head accessories and then combining them will cause the following process problems, for example: no matter how the club head body and the club head accessories are combined, the joint position of the two cannot avoid the possibility of cracks , especially when the golf club head is in hitting the golf ball for a long time, the club head accessory (hitting panel) is easily separated from the club head body by the impact stress. Furthermore, in order to form a stable joint relationship, the structure of the joint part of the club head body must be complicated, which will only increase the difficulty of manufacturing and assembling, and will disadvantageously reduce the time and cost of mass production.

Another conventional golf club head manufacturing method, please refer to Figures 1-7, which discloses the Taiwan No. 514574 "Manufacturing method of golf iron club head" invention patent, the method includes steps: (1) two-piece Wax molds 11, 12 are molded separately, as shown in Figure 1, it is to inject wax liquid respectively in the first mold and the second mold (not shown), form two-piece wax molds 11, 12 respectively after making it mold opening 12, such as a body wax model 11 and a panel wax model 12; (2) Wax model bonding operation, as shown in Figure 1, it is to carry out the bonding operation to the two-piece wax models 11, 12, and the two pieces are respectively The independent wax molds 11, 12 are bonded into one; (3) the sand shell mold 13 is made by soaking the slurry, as shown in Figure 4, it dips the slurry on the surface of the two-piece wax molds 11, 12 bonded together to form a Sand shell mold 13, wax molds 11, 12 are hot-melted and poured out subsequently, and in sand shell mold 13, form the protruding part of corresponding back hole shape, and form pouring port on sand shell mold 13 side; And (4) sand The shell mold 13 manufactures iron club heads. As shown in FIG. 6 , it injects molten metal into the sand shell mold 13 . After the molten metal is solidified, the sand shell mold is broken to take out the integrally formed club head 14 .

The above-mentioned manufacturing method can be used to manufacture an integrally formed club head 14, and directly form a back cavity 141 on the back of the club head 14, which is especially beneficial to make the back cavity 141 into a deep hole shape (undercut) to lift the club. The batting performance of the head 14 may meet the product modeling requirements. Nevertheless, the above-mentioned method still produces the following process problems, for example: when performing the bonding operation, the body wax model 11 and the panel wax model 12 are usually filled with wax liquid on the surface of the junction. However, as shown in Figures 2, 5, and 7, when the gap filling is inaccurate, a gap a will be produced between the two wax patterns 11 and 12, and the slurry will infiltrate when the gap a causes the slurry to soak. As a result, after dewaxing, a burr b will be formed in the obtained sand shell mold 13, and after casting, the burr b will cause the club head 14 to form a gap c, which in turn reduces the casting of the club head 14 Excellent rate of finished products. On the other hand, as shown in FIG. 3 , a filler a' (such as wax liquid, resin, silica gel or hot melt) can be further used to fill the gap a at the junction during the wax mold manufacturing process. However, since the filler a' usually has a relatively high viscosity, for example, the viscosity of wax at 100° C. is above 100 cps, the filler a' is not only difficult to capillary fill into the gap a, but also when it contacts the wax molds 11 and 12 It is very easy to cool and solidify and remain sticky on the surface of the gap a. As a result, although the filler a' can fill the gap a, it causes irregular protrusions on the surface of the junction, which leads to repeated surface grinding of the subsequently manufactured rod head 14 casting (not shown). Especially, if the irregular protrusion is formed at the junction of the back cavity 141 of the casting of the rod head 14, it is difficult for the workpiece to enter the back cavity 141, so the surface grinding process in the back cavity 141 will become extremely difficult. Difficult, resulting in a substantial increase in processing costs and prolonging the process time. Therefore, it is necessary to further improve the manufacturing method of the above-mentioned conventional golf club head and its wax model.

Contents of the invention

In view of this, the present invention improves the above-mentioned shortcoming by prefabricating a first wax pattern part, and then putting the first wax pattern part into a mold set for wax injection to directly form a second wax pattern part, so that the first and The second wax mold part is integrally formed to form a club head wax mold. Thereby, the present invention can form a smooth wax pattern bonding surface, thereby increasing the bonding quality of the wax pattern, increasing the surface flatness of the rod head casting, and improving the yield of subsequent casting.

The main purpose of the present invention is to provide a manufacturing method of a golf club head and its wax model, wherein a first wax model part is prefabricated, and then the first wax model part is put into a mold set and injected with wax to form a golf club head. The second wax mold part is used to make an integrally formed club head wax mold, so that the present invention has the effects of increasing the bonding quality of the wax mold, reducing the surface processing requirements of the club head casting, and improving the quality rate of subsequent casting.

The present invention is achieved like this:

The invention provides a method for manufacturing a golf club head, which comprises the steps of: using a first mold group to prefabricate a first wax mold part, the first wax mold part has a joint part; the first wax mold part Put it into a first mold cavity of a second mold set, the first mold cavity substantially corresponds to the shape of the first part of a predetermined rod head; inject the wax liquid into a second mold cavity of the second mold set, the first mold cavity The second mold cavity substantially corresponds to the shape of the second part of a predetermined rod head; the wax liquid in the second mold cavity of the second mold set is cooled to form a second wax mold part, and the second wax mold part is integrally combined with the first wax mold part. A joint part of a wax mold part, thereby jointly forming a wax mold of a club head; soaking the wax mold of the club head to form a sand shell mold, and then heating and dewaxing the sand shell mold; and using the sand shell mold to carry out casting to produce a head casting.

The manufacturing method of the golf club head according to the present invention, wherein the second mold set is further assembled with at least one mold core, which is used to abut against the periphery of the joint part of the first wax mold part, when the second mold set When injecting wax into the second mold cavity of the first wax mold, the mold core ensures that the wax liquid does not overflow to the rest of the first wax mold part.

The method for manufacturing a golf club head according to the present invention, wherein the first and second wax mold parts are selected from the group consisting of weight body, club head body, striking panel body, striking panel, sleeve neck, cover plate, and the front half of the club head. The club head member of the club head and the rear half of the club head.

The manufacturing method of the golf club head according to the present invention, wherein when the first wax pattern part is selected from the weight body, the first wax pattern part forms a cavity, and the cavity runs through the first wax pattern part front and back of .

In the manufacturing method of the golf club head according to the present invention, the cavity of the first wax mold part forms a deep hole shape.

In the method for manufacturing a golf club head according to the present invention, the bonding portion of the first wax pattern portion is selected to form a bonding structure of a stepped portion, a ring flange, a ring groove, and a bonding hole, so as to increase the number of the first and second Bonding reliability of the wax pattern.

In the manufacturing method of the golf club head according to the present invention, the mold core is a single plate body.

In the manufacturing method of the golf club head according to the present invention, the mold core is selected to be composed of multiple plates and multiple modules.

In the manufacturing method of the golf club head of the present invention, the mold core is made of heat-resistant elastic material to facilitate subsequent demoulding.

The present invention also provides a method for manufacturing a wax mold of a golf club head, which includes the steps of: prefabricating a first wax mold part, the first wax mold part has a joint part, and the first wax mold part substantially corresponds to a predetermined The shape of the first part of the club head; directly injecting wax from the joint part of the first wax mold part to form a second wax mold part, the second wax mold part substantially corresponds to the shape of the second part of the predetermined club head; and cooling the first wax mold part A wax pattern part and a second wax pattern part, the second wax pattern part is integrally combined on the joint part of the first wax pattern part, thus jointly forming a rod head wax pattern.

In the method for manufacturing a wax model of a golf club head according to the present invention, the step of injecting wax to form a second wax model part includes: placing the first wax model part into a first mold cavity of a first mold set , the first mold cavity substantially corresponds to the shape of the first part of the predetermined rod head; the wax liquid is injected into a second mold cavity of the second mold set, and the second mold cavity substantially corresponds to the shape of the second part of the predetermined rod head; and cooling the wax liquid in the second mold cavity of the second mold set to form the second wax mold part, the second wax mold part is integrally combined on the joint part of the first wax mold part to form a rod head together Wax model.

The method for manufacturing a golf club head wax mold according to the present invention, after the wax mold of the club head is prepared, further includes the step of: dipping the wax mold of the club head into slurry to form a sand shell mold, and then making the sand shell The mold is heated and dewaxed; and the sand shell mold is used for casting to obtain a rod head casting.

In the method for manufacturing a wax model of a golf club head according to the present invention, the second mold set is further assembled with at least one mold core, which is used to abut against the periphery of the joint portion of the first wax mold part, when the second When wax is injected into the second mold cavity of the mold set, the mold core ensures that the wax liquid does not overflow to the rest of the first wax mold part.

The method for manufacturing a golf club head wax mold according to the present invention, wherein the first and second wax mold parts are selected from a weight body, a club head body, a striking panel body, a striking panel, a sleeve neck, a cover plate, a shaft The head member is the front half of the head and the rear half of the head.

The method for manufacturing a golf club head wax mold according to the present invention, wherein when the first wax mold part is selected from a weight body, the first wax mold part forms a cavity, and the cavity runs through the first wax mold part front and back of .

In the method for manufacturing a golf club head wax mold according to the present invention, the cavity of the first wax mold part forms a deep hole shape.

In the method for manufacturing a golf club head wax mold according to the present invention, the joint portion of the first wax mold part is selected to form a joint structure of a stepped part, a ring flange, a ring groove, and a joint hole, so as to increase the first and Bonding reliability of the second wax pattern part.

The manufacturing method of the golf club head wax mold according to the present invention, wherein the mold core is a single plate body.

In the method for manufacturing a golf club head wax mold according to the present invention, the mold core is selected to be composed of multiple plates and multiple modules.

In the method for manufacturing a golf club head wax mold according to the present invention, the mold core is made of heat-resistant elastic material to facilitate subsequent demoulding.

Description of drawings

Figure 1: Schematic diagram of the wax mold bonding operation of the conventional golf club head and its wax mold manufacturing method.

Figure 2: A partially enlarged view of Figure 1 of a conventional golf club head wax model.

Figure 3: Another partial enlarged view of a conventional golf club head wax model.

Fig. 4: Schematic diagram of the manufacturing sand shell mold operation of the conventional golf club head and its wax mold manufacturing method.

Fig. 5: A partially enlarged view of Fig. 4 of a conventional golf club head sand shell mold.

Figure 6: Schematic diagram of casting iron club head operation in the manufacturing method of the conventional golf club head and wax mold thereof.

Figure 7: An enlarged partial view of Figure 6 of a conventional golf club head casting.

Fig. 8: A flow block diagram of the manufacturing method of the golf club head and its wax mold according to the first embodiment of the present invention.

9-11 : Schematic diagrams of the first step of the manufacturing method of the golf club head and its wax model according to the first embodiment of the present invention.

Fig. 12: A schematic diagram of the second step of the manufacturing method of the golf club head and its wax model according to the first embodiment of the present invention.

13-14: Schematic diagrams of the third and fourth steps of the manufacturing method of the golf club head and its wax model according to the first embodiment of the present invention.

15-16: Schematic diagrams of the fifth step of the manufacturing method of the golf club head and its wax model according to the first embodiment of the present invention.

Fig. 17: The sixth step of the manufacturing method of the golf club head and its wax model according to the first embodiment of the present invention, the schematic diagram of the casting of the golf club head.

Fig. 18: A schematic diagram of the first step of the manufacturing method of the golf club head and its wax model according to the second embodiment of the present invention.

Fig. 19: A schematic diagram of the second step of the manufacturing method of the golf club head and its wax model according to the second embodiment of the present invention.

20-23: Partial enlarged cross-sectional views of various front wax pattern parts and molds of the second embodiment of the present invention.

Fig. 24: Partial enlarged view of the front wax model part of the second embodiment of the present invention.

Fig. 25: Schematic diagrams of the third and fourth steps of the manufacturing method of the golf club head and its wax model according to the second embodiment of the present invention.

Symbol Description:

11 body wax mold 12 panel wax mold 13 sand shell mold

14 Head 141 Back Hole 20 First Wax Model

21 Junction part 22 Pocket 23 Gate part

200 The first mold group 201 Cavities 30 The second wax mold department

31 panels 32 sets of necks 300 second mold group

301 first mold cavity 302 second mold cavity 303 mold core

40 rod head wax mold 400 sand shell mold 401 cavity

402 sprue 50 rod head casting 51 panel

52 sets of neck 53 back points 60 front wax mold

61 Stepped part 62 Ring flange 621 Combined hole

622 combination hole 623 combination hole 63 ring groove

64 ring flange 70 outer mold 71 support seat

72 mold core groups 700 mold cavities 80 post-wax mold department

90 club head wax model a gap a' filler

b Burr c Clearance

Detailed ways

In order to allow the above and other objects, features and advantages of the present invention to be more clearly understood, the preferred embodiments of the present invention will be specifically cited below, together with the attached drawings, as follows:

Please refer to FIGS. 8-17 , the manufacturing method of the golf club head and its wax mold according to the first embodiment of the present invention includes steps: (1) Prefabricate a first wax mold part 20 with a first mold set 200 , The first wax pattern part 20 has a joint part 21; (2) the first wax pattern part 20 is placed in a first mold cavity 301 of a second mold set 300, and the first mold cavity 301 substantially corresponds to a Predetermining the shape of the first part of the rod head; (3) injecting wax liquid into a second mold cavity 302 of the second mold set 300, the second mold cavity 302 substantially corresponding to a predetermined shape of the second part of the rod head; (4) cooling the wax liquid in the second mold cavity 302 of the second mold set 300 to form a second wax mold part 30, which is integrally combined with the first wax mold part 20 part 21, thereby jointly forming a rod head wax mold 40; (5) soaking the rod head wax mold 40 to form a sand shell mold 400, and then heating and dewaxing the sand shell mold 400; and (6) utilizing The sand shell mold 400 is cast to produce a head casting 50 .

Please refer to FIGS. 8 and 9 to 11, the first step of the manufacturing method of the golf club head and its wax mold according to the first embodiment of the present invention is: using a first mold set 200 to prefabricate a first wax mold part 20 , the first wax pattern part 20 has a joint part 21 . Firstly, the first mold set 200 is manufactured, which is provided with a mold cavity 201 whose shape corresponds to the shape of the first part of the predetermined rod head. Next, the wax liquid is injected into the mold cavity 201 of the first mold set 200 to manufacture the first wax mold part 20 . According to product design requirements, the first part of the club head (the first wax mold part 20 ) is selected from various club head components, such as a weight body, a club head body, or a weight block. In the present invention, the first wax mold part 20 is preferably a weight body, which is provided with the joint part 21 and a cavity 22 . The joint part 21 is formed on the lip of the cavity 22 on the front surface of the first wax pattern part 20 . The cavity 22 runs through the front and back of the first wax pattern part 20 , and can optionally form a deep hole. Moreover, in order to form a gate required for subsequent casting, the first wax pattern part 20 is preferably provided with at least one gate part 23 protruding therefrom.

Please refer to FIG. 8 and FIG. 12, the second step of the manufacturing method of the golf club head and its wax mold according to the first embodiment of the present invention is: put the first wax mold part 20 into a second mold group In a first mold cavity 301 of 300, the first mold cavity 301 substantially corresponds to the shape of a first part of a predetermined rod head. First, make the second mold set 300, the second mold set 300 is provided with the first mold cavity 301 and a second mold cavity 302, the shapes of the first and second mold cavities 301, 302 correspond to the predetermined rods respectively The shape of the first part and the second part of the head. The first wax mold part 20 is put into the first mold cavity 301 corresponding to the first part of the club head, while the joint part 21 of the first wax mold part 20 faces the second mold cavity corresponding to the second part of the club head. 302. Next, after the first wax pattern part 20 is put into the first mold cavity 301 , at least one mold core 303 is properly assembled in the second mold set 300 . According to the requirements of the manufacturing process, the mold core 303 can choose to use a single plate body, or choose to be composed of multiple plates. At the same time, the mold core 303 can also be made of heat-resistant elastic material to facilitate subsequent demoulding. The mold core 303 is used to abut against the inner peripheral edge of the cavity 22 of the first wax pattern part 20 near the joint part 21, so that when the second mold cavity 302 is waxed, the mold core 303 can ensure that the wax The liquid does not overflow into the cavity 22 of the first wax pattern part 20 .

Please refer to Figures 8, 13 and 14, the third and fourth steps of the manufacturing method of the golf club head and its wax model according to the first embodiment of the present invention are: inject wax liquid (not shown) into the In a second mold cavity 302 of the second mold set 300, the second mold cavity 302 substantially corresponds to the shape of a second part of a predetermined rod head; then, the wax liquid in the second mold cavity 302 is cooled to form a first mold cavity Two wax pattern parts 30 , the second wax pattern part 30 is integrally combined with the joint part 21 of the first wax pattern part 20 , thus jointly forming a club head wax pattern 40 . According to product design requirements, the second part (second wax mold part 30) of the club head is selected from various club head components, such as hitting panel body, hitting panel, sleeve neck or various cover plates (top plate, side plate, bottom plate), etc. In the present invention, the second wax pattern part 30 is preferably an example of a striking panel body, which includes a panel 31 and a set of necks 32 . After the wax liquid is injected, the wax liquid gradually fills the second mold cavity 302 , and when the wax liquid touches the joint portion 21 of the first wax mold part 20 , the joint portion 21 is also heated and partially melted. Therefore, when cooling to form the second wax pattern portion 30 , the first and second wax pattern portions 20 , 30 can form excellent bonding quality without using any additional filler (such as wax liquid for bonding). Furthermore, since the first wax pattern part 20 has been prefabricated, the second mold set 300 does not need to design and construct a complex combined mold core for the cavity 22 of the first wax pattern part 20, but only needs to use a plate The shape of the mold core 303 relatively simplifies the structure of the wax mold, reduces the complexity of the manufacturing process and reduces the cost of mold opening. Thereby, the present invention can also overcome the problem of forming mold lines inside the wax mold by the conventional combined mold core technology.

Please refer to Figures 8, 15 and 16, the fifth step of the manufacturing method of the golf club head and its wax mold according to the first embodiment of the present invention is: soak the club head wax mold 40 to form a sand shell mold 400, and then the sand shell mold 400 is heated and dewaxed. The club head wax mold 40 can be formed into the sand shell mold 400 (ceramic shell) through commonly known zirconium slurry dipping and sand dipping techniques. The sand shell mold 400 forms a cavity 401 and a sprue 402 . After the sand shell mold 400 is indeed dried and hardened, the sand shell mold 400 is heated and dewaxed to remove the club head wax pattern 40 in the mold cavity 401 .

Please refer to Figures 8, 16 and 17, the sixth step of the manufacturing method of the golf club head and its wax mold according to the first embodiment of the present invention is: use the sand shell mold 400 to cast to obtain a golf club head Head casting 50. After the sand shell mold 400 is dewaxed to form a hollow mold cavity 401, molten iron (not shown) is injected into the mold cavity 401 through the sprue 402, and after the molten iron is cooled and solidified, the sand shell mold 400 Crushed, so that the club head casting 50 can be made integrally. The rod head casting 50 is provided with a face plate 51 , a set of neck 52 and a back hole 53 , and the back hole 53 can be formed into a deep hole shape as required. As shown in FIG. 17 , after casting, there will be no gap on the surface at the interface between the back surface of the panel 51 and the back pocket 53 . Due to the better surface flatness, the need for surface grinding inside the back cavity 53 can be reduced. On the other hand, the outer peripheral surface of the rod head casting 50 does not form irregular protrusions at the joining interface, so the need for surface grinding on the outside can also be reduced.

Please refer to FIGS. 18 and 19 , the steps of the manufacturing method of the golf club head and its wax mold according to the second embodiment of the present invention are substantially the same as those of the first embodiment. However, compared with the first embodiment, the first wax pattern part of the second embodiment belongs to a front wax pattern part 60, and its shape corresponds to the shape of the front half of the golf club head, but does not include the striking face area. . The front wax pattern part 60 is prefabricated by wax injection with a first mold set (not shown, similar to FIG. 9 ) having a corresponding cavity shape. Furthermore, the second mold set is composed of several supporting bases 71 , several mold cores 72 and several outer molds 70 . Both the support base 71 and the mold core set 72 are composed of a plurality of modules, and the support base 71 and the mold core set 72 together form the first mold cavity (not shown), which substantially corresponds to the predetermined rod head. The shape of the front half. The front wax pattern part 60 can be preliminarily fixed in the first cavity (not shown) formed by the supporting seat 71 and the core set 72 . The outer mold 70 of the second mold set and the mold core 72 jointly form a second mold cavity 700 . The shape of the second cavity 700 corresponds to the shape of the rear half of the predetermined club head.

Next, please refer to FIG. 25 , the second mold cavity 700 of the second mold set can be used for injecting wax to form a rear wax pattern part 80 (second wax pattern part). In this way, the front wax pattern part 60 and the rear wax pattern part 80 can also be integrally molded to form a club head wax pattern 90 for subsequent processes such as dipping, sanding, dewaxing, and casting (similar to FIGS. 15 to 17 ). ). Since the front wax pattern part 60 has been prefabricated, it is not necessary to design and construct a complex combined mold core for the front wax pattern part 60, but only need to use the relatively simple mold core set 72, which relatively simplifies the wax pattern mold. structure, reducing the complexity of the process and reducing the cost of mold opening. Thereby, the present invention can also overcome the problem of forming mold lines inside the wax mold by the conventional combined mold core technology.

Furthermore, please refer to shown in Figures 20-24, the front wax pattern part 60 is to form various forms of bonding parts according to product requirements, so as to increase the bonding area and combination of the front wax pattern part 60 and the rear wax pattern part 80. Reliability and prevent wax leakage.

As shown in FIG. 20 , the joint portion of the front wax pattern portion 60 includes a stepped portion 61 and a ring flange 62 , and the stepped portion 61 is relatively located inside the ring flange 62 . The stepped portion 61 can be abutted against by the mold core set 72 correspondingly. Thereby, when the second mold cavity 700 is injecting wax, the core set 72 can ensure that the wax liquid does not overflow into the free space between the front wax mold part 60 and the core set 72 .

As shown in FIG. 21 , the joint portion of the front wax pattern portion 60 also includes the stepped portion 61 and the ring flange 62 , but the stepped portion 61 is relatively located outside the ring flange 62 . The ring flange 62 can be abutted against the core set 72 correspondingly to prevent the wax liquid from leaking.

As shown in FIG. 22 , the joint portion of the front wax mold part 60 includes the ring flange 62 , a ring groove 63 and a ring flange 64 , which are arranged oppositely from outside to inside in sequence. The ring flange 64 can also be abutted against the core set 72 correspondingly to prevent the wax liquid from leaking.

As shown in FIGS. 23 and 24 , the joint portion of the front wax pattern portion 60 also includes the stepped portion 61 and the ring flange 62 , and the stepped portion 61 is located relatively inside the ring flange 62 . The ring flange 62 further defines at least one combination hole 621 , 622 , 623 , and the combination hole 621 , 622 , 623 is selected to form a suitable geometric shape, such as ellipse, square, circle, rectangle, triangle and so on. Thereby, when the second mold cavity 700 is injecting wax, the joint holes 621 , 622 , 623 can be infiltrated with wax liquid simultaneously, thereby increasing the joint reliability of the front wax mold part 60 and the rear wax mold part 80 .

As mentioned above, compared with the manufacturing method of the conventional golf club head and its wax mold in Fig. 1, the gap a is easily exposed in the back cavity when the two-piece wax molds 11 and 12 are bonded, which affects the subsequent casting products. The present invention of FIG. 8 directly forms the second wax pattern by prefabricating the first wax pattern part 20 first, and then putting the first wax pattern part 20 into the second mold set 300 for wax injection. part 30 , the first and second wax pattern parts 20 , 30 are integrally molded to form the club head wax pattern 40 . In this way, the present invention can indeed form a smooth wax pattern bonding surface, thereby increasing the bonding quality of the wax pattern, increasing the surface flatness of the rod head casting, and improving the quality rate of subsequent casting, while relatively simplifying the structure of the wax pattern mold and reducing the manufacturing process. complexity and reduce tooling costs.

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 protection scope of the present invention should be determined by the scope of the claims.

Claims (20)

1, a kind of manufacture method of golf club head, it comprises step:

Utilize the prefabricated one first wax-pattern portion of one first set of molds, this first wax-pattern portion has a joint portion;

This first wax-pattern is deployed in one first die cavity of one second set of molds the first position shape of this first die cavity essence corresponding one predetermined bar head;

Wax liquid is injected in one second die cavity of this second set of molds the second position shape of this second die cavity essence corresponding one predetermined bar head;

Cool off the interior wax liquid of second die cavity of this second set of molds, to form one second wax-pattern portion, this second wax-pattern portion one is combined on the joint portion of this first wax-pattern portion, thereby forms a bar head wax-pattern jointly;

This bar head wax-pattern soaking paste is formed an arenaceous shell mould, then this arenaceous shell mould is heated dewaxing; And

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

2, the manufacture method of golf club head according to claim 1, it is characterized in that: wherein this second set of molds is organized separately and is adorned at least one die, it is in order to the joint portion periphery of this first wax-pattern portion of corresponding butt, when second die cavity of this second set of molds was penetrated wax, this die was guaranteed not overflow of wax liquid all the other positions to this first wax-pattern portion.

3, the manufacture method of golf club head according to claim 1 is characterized in that: wherein this first, second wax-pattern portion is selected from balance weight body, rod head noumenon, scope of attack plate body, hitting panel, cover neck, cover plate, bar head first half, the latter half of club head component of bar head.

4, the manufacture method of golf club head according to claim 3 is characterized in that: wherein when this first wax-pattern portion was selected from balance weight body, this first wax-pattern portion formed a depression, and this depression runs through the front and the back side of this first wax-pattern portion.

5, the manufacture method of golf club head according to claim 4 is characterized in that: wherein the depression of this first wax-pattern portion forms the deep hole moulding.

6, the manufacture method of golf club head according to claim 1, it is characterized in that: wherein the joint portion of this first wax-pattern portion select to form the combined structure of end difference, ring flange, annular groove, combined hole, with increase this first and second wax-pattern portion in conjunction with reliability.

7, the manufacture method of golf club head according to claim 2 is characterized in that: wherein this die is a monolithic plate body.

8, the manufacture method of golf club head according to claim 2 is characterized in that: wherein this die is selected to be made up of multi-disc plate body, many modules.

9, the manufacture method of golf club head according to claim 2 is characterized in that: wherein this die is to be made by heat-resisting elastic material, in order to the follow-up demoulding.

10, a kind of manufacture method of golf club head wax-pattern, it comprises step:

Prefabricated one first wax-pattern portion, this first wax-pattern portion has a joint portion, the first position shape of this first wax-pattern portion essence corresponding one predetermined bar head;

Directly penetrate wax by the joint portion of this first wax-pattern portion and form one second wax-pattern portion, the second position shape of the corresponding predetermined bar head of this second wax-pattern portion essence; And

Cool off this first wax-pattern portion and the second wax-pattern portion, this second wax-pattern portion one is combined on the joint portion of this first wax-pattern portion, thereby forms a bar head wax-pattern jointly.

11, the manufacture method of golf club head wax-pattern according to claim 10 is characterized in that: wherein this is penetrated the step that wax forms the second wax-pattern portion and comprises:

This first wax-pattern is deployed in one first die cavity of one first set of molds the first position shape of the corresponding predetermined bar head of this first die cavity essence;

Wax liquid is injected in one second die cavity of this second set of molds the second position shape of the corresponding predetermined bar head of this second die cavity essence; And

Cool off the interior wax liquid of second die cavity of this second set of molds, to form this second wax-pattern portion, this second wax-pattern portion one is combined on the joint portion of this first wax-pattern portion, forms a bar head wax-pattern jointly.

12, the manufacture method of golf club head wax-pattern according to claim 10 is characterized in that: wherein after making this bar head wax-pattern, other comprises step:

This bar head wax-pattern soaking paste is formed an arenaceous shell mould, then this arenaceous shell mould is heated dewaxing; And

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

13, the manufacture method of golf club head wax-pattern according to claim 10, it is characterized in that: wherein this second set of molds is organized separately and is adorned at least one die, it is in order to the joint portion periphery of this first wax-pattern portion of corresponding butt, when second die cavity of this second set of molds was penetrated wax, this die was guaranteed not overflow of wax liquid all the other positions to this first wax-pattern portion.

14, the manufacture method of golf club head wax-pattern according to claim 10 is characterized in that: wherein this first, second wax-pattern portion is selected from balance weight body, rod head noumenon, scope of attack plate body, hitting panel, cover neck, cover plate, bar head first half, the latter half of club head component of bar head.

15, the manufacture method of golf club head wax-pattern according to claim 14 is characterized in that: when wherein this first wax-pattern portion was selected from balance weight body, this first wax-pattern portion formed a depression, and this depression runs through the front and the back side of this first wax-pattern portion.

16, the manufacture method of golf club head wax-pattern according to claim 15 is characterized in that: wherein the depression of this first wax-pattern portion forms the deep hole moulding.

17, the manufacture method of golf club head wax-pattern according to claim 10, it is characterized in that: wherein the joint portion of this first wax-pattern portion select to form the combined structure of end difference, ring flange, annular groove, combined hole, with increase this first and second wax-pattern portion in conjunction with reliability.

18, the manufacture method of golf club head wax-pattern according to claim 13 is characterized in that: wherein this die is a monolithic plate body.

19, the manufacture method of golf club head wax-pattern according to claim 13 is characterized in that: wherein this die is selected to be made up of multi-disc plate body, many modules.

20, the manufacture method of golf club head wax-pattern according to claim 13 is characterized in that: wherein this die is to be made by heat-resisting elastic material, in order to the follow-up demoulding.

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