CN1221345C - Method for making wax mold of golf wood club head shell - Google Patents

Abstract

A method for making wax pattern of golf club head shell includes such steps as injecting wax liquid into mould to form a wax pattern, removing the part of mould in the wax pattern, installing another smaller internal mould, filling mortar in the gap to make a sand shell be adhered to the internal surface of wax pattern; the second method is to inject the sand slurry into the sand shell of the model with preset shape, then to replace the outer mold component of the model, and then to inject the wax liquid into the gap between the new outer mold component and the sand shell to form a wax mold covering the sand shell. The wax mould made by the invention is not easy to deform, and can maintain the shape precision of a casting, namely the shell of the club head.

Description

The method of manufacturing wax mould of golf club head casing

Technical field

The present invention relates to the golf driver head manufacturing technology, particularly about a kind of method of manufacturing wax mould of golf club head casing.

Background technology

Known to make the program of golf club head casing with the lost wax casting legal system roughly as follows: prepare most wax-patterns (each wax-pattern has the housing section and a gate part of a corresponding bar head capsule shape) with emission technology earlier, gate part burning with several wax-patterns sticks to a wax seat (main running channel) again, then carry out soaking paste, the universe is dry, make wax surface attachment one deck sand, again with the high temperature sintering sand bed and melt dewax matter and obtain the husky shell of hollow, then husky shell is inserted in the moulding box again in around fill up and cast sand and make mold, after injecting molten metal and finish casting toward die cavity, knock out casting sand and obtain foundry goods and excise the cast gate position, can obtain a plurality of bar head capsule bodies.Cooperation covers a metal sheet on the opening that is welded in housing, promptly finishes a golf club head.

Can produce following problem when making ultra-large type (oversize) club head with above-mentioned method for making: because the shell wall of ultra-large type bar head (0.8-1.2mm) as thin as a wafer, the shell wall of wax-pattern housing section relatively also only has equal thickness; If wax-pattern is to be stacked in to wait subsequent treatment together after by ejection formation, then when piling up extruding, the thin-walled of wax shell may compressive deformation, or else, the stress that wax-pattern is born when being immersed mortar by pressure, and by the mortar weight of being carried when picking up in the mortar, the also as easy as rolling off a log thickness that makes distortion occurs less than the wax shell of 1mm, and the bar head capsule body that causes casting out also loses precision thereupon.

Summary of the invention

Main purpose of the present invention is promptly providing a kind of method of manufacturing wax mould of golf club head casing, and its wax-pattern of making can be resisted bigger external force, thereby is difficult for producing distortion, makes that the bar head capsule body precision that casts out is higher.

For reaching aforementioned purpose, the method for manufacturing wax mould of golf club head provided by the invention, the wax-pattern of being made more are attached with a husky shell on the housing section internal face except the housing section and gate part that are formed by wax, make wax-pattern to resist and be subjected to bigger external force.Its preparation method has two:

1. include the following step:

A. arrange the model of wax-pattern: form a model with membrane module in an outer membrane module and, the die cavity of model is the shape of required wax-pattern, and it comprises housing section, and the gate part that links of at least one and housing section of a corresponding aforementioned club head casing shape; The corresponding position of interior membrane module is in housing section inside;

B. moulding wax-pattern: molten wax liquid is injected in the die cavity, make wax liquid be full of die cavity and after cooling, form a wax-pattern;

C. the interior membrane module of replacement model: the not outer membrane module and the wax-pattern of mobility model, but with the interior membrane module removal and the less interior membrane module of another group that changes the outfit, the secondary die cavity of formation one corresponding internal face shape between the housing section internal face of this less interior membrane module and wax-pattern;

D. the husky shell of moulding: mortar is injected in the secondary die cavity, make mortar be full of die cavity, and form a husky shell that is attached on the wax-pattern housing section internal face in the dry back of the universe;

E. obtain wax-pattern: the removal model, take out wax-pattern; The husky shell that is attached on the wax-pattern housing section internal face has predetermined thickness and hardness, but the anti-external force that is subjected to of support shell body.

2. include the following step:

A. arrange the model of husky shell: form a model, the internal face shape of the aforementioned club head casing of the rough correspondence of the die cavity of model with membrane module in an outer membrane module and; The corresponding position of interior membrane module is in the inside of housing;

B. the husky shell of moulding: mortar is injected in the die cavity, make mortar be full of die cavity and form a husky shell in the dry back of the universe;

C. the outer membrane module of replacement model: the not interior membrane module of mobility model and husky shell, but with the external mold assembly removal and the bigger outer membrane module of another group that changes the outfit, form a secondary die cavity between outer steamed bun assembly that this is bigger and the husky shell, the shape of secondary die cavity system is the shape of required wax-pattern, and it comprises housing section, and at least one gate part that links with housing section of a corresponding aforementioned club head casing shape;

D. moulding wax-pattern: molten wax liquid is injected in the secondary die cavity, make wax liquid be full of die cavity, and after cooling, form and coat and in conjunction with the wax-pattern of husky shell;

E. obtain wax-pattern: the removal model, take out wax-pattern; The husky shell that is attached on the wax-pattern housing section internal face has predetermined thickness and hardness, but the anti-external force that is subjected to of support shell body.

Description of drawings

Fig. 1 to Fig. 4 is the manufacturing process schematic diagram of the present invention's first preferred embodiment;

Fig. 5 is the structural representation of the club head casing made according to the present invention's first preferred embodiment: and

Fig. 6 to Fig. 9 is the manufacturing process schematic diagram of the present invention's second preferred embodiment.

The specific embodiment

The present invention is described in detail below to lift two preferred embodiment conjunction with figs..

The method of manufacturing wax mould of the golf club head casing that the present invention's first preferred embodiment provides includes the following step:

Step 1, arrange the model of wax-pattern: as shown in Figure 1, with commonly used the same during with emission technology moulding wax-pattern, form a model 30 with membrane module in an outer membrane module 10 and one 20, the die cavity 32 of model 30 (gaps that promptly outer membrane module 10 and interior membrane module are 20) is corresponding to the shape of required wax-pattern, it comprises the housing section 34 of a corresponding club head casing shape, and at least one gate part 36 that is linked to housing section 34 precalculated positions, read for convenience and look and illustrate, present embodiment is employed graphic, system is illustrated in bar head bottom surface with the opening of bar head capsule body, gate part 36 then is linked to heel (heel) position of bar head, yet on the production practice, shell nozzle and gate part can be located at other diverse location, more common person is located at bar head body shot position with opening, gate part then is linked to the top of front openings, root edge, or bar head back; Again, aforementioned in membrane module 20 be corresponding position in housing section 34 inside, be that (comprising one inserts the shaft-like die 23 of stretching in bar Head and Neck position and be put together with predefined procedure by polylith die 22;

Step 2, moulding wax-pattern: an amount of molten wax liquid is injected (present embodiment is injected by gate part 36) in the die cavity 32, after the wax liquid cooling but, promptly in model 30, form the foregoing wax-pattern 40 of a shape (comprising housing section 44 and gate part 46), as shown in Figure 2;

The interior membrane module of step 3, replacement model: after wax-pattern 40 moulding, the outer membrane module 10 of mobility model 30 not and wax-pattern 40 times, with interior membrane module 20 removals, and change another in co-located and organize less interior membrane module (to call membrane module 25 in second in the following text), as shown in Figure 3, between housing section 44 internal faces of the second interior membrane module 25 and wax-pattern 40, the secondary die cavity 38 with a corresponding internal face shape;

Step 4, the husky shell of moulding: then an amount of mortar is injected in the secondary die cavity 38 with emission technology or alternate manner, make mortar be full of die cavity 38, and form a husky shell 50 that is attached on wax-pattern 40 housing section 44 internal faces, as shown in Figure 4 in the dry back of the universe; The user of institute is identical in the soaking paste operation of employed sand of aforementioned mortar and lost wax casting commonly used, belongs to alleged " facing sand " or " heart sand ", for example zirconia, aluminium oxide, oxidation silicon etc. in the casting sand.

Step 5, obtain wax-pattern: after husky shell 50 moulding,, take out the wax-pattern 40 that is coated with husky shell 50 with model 30 (membrane module 25 in the outer membrane module 10 and second) removal.

The wax-pattern of making according to said method 40 as shown in Figure 5, be attached with husky shell 50 on the internal face of its housing section 44, because husky shell 50 has predetermined thickness and hardness, can be by the medial support housing section 44 anti-external force that are subjected to, even so the shell wall as thin as a wafer of the aforementioned ultra-large type bar head of picture can not be out of shape because of piling up extruding yet.And the wax-pattern that the present invention makes can a plurality ofly be bonded to same wax seat equally, soaks mortar afterwards more in the lump, makes each wax-pattern surface inside and outside all attach one deck sand (will cover the husky shell 50 on the internal face), makes mold again and casts; In the soaking paste operation, because each wax-pattern 40 inner existing hard solid husky shells 50 support, so when immersing mortar and in mortar, picking up, and reason is not born excessive external force and is produced distortion.Certainly, wax-pattern 40 can also spray attached mode makes the surface attachment sand bed, makes mold afterwards again and casts.Do not take place because the wax-pattern 40 that the present invention makes does not have the distortion situation in manufacturing process,, can improve production capacity and quality of finished so the bar head capsule body that casts out at last also has high form accuracy.

The method for making that the present invention's second preferred embodiment provides then is the husky shell reshaping of a first moulding wax-pattern, and it includes the following step:

The model of step 1, the husky shell of layout: as shown in Figure 6, form a model 60, its die cavity 63 rough internal face shapes corresponding to bar head capsule body with membrane module in an outer membrane module 61 and one 62;

The husky shell of step 2, moulding: mortar is injected in the die cavity 63, make mortar be full of die cavity 63 and form a husky shell 70, as shown in Figure 7 in the dry back of the universe;

The outer membrane module of step 3, replacement model: the interior membrane module 62 that does not move husky shell 70 and husky shell 70 inside, but the bigger outer membrane module (to call the second outer membrane module 64 in the following text) of another group removes the outer membrane module 61 of husky shell 70 outsides and change the outfit, as shown in Figure 8,70 on the second outer membrane module 64 and husky shell form a secondary die cavity 65, secondary die cavity 65 is the shape that is required wax-pattern, identical with last embodiment, it comprises the gate part that a housing section and that is bar head capsule shape is linked to bar head heel;

Step 4, moulding wax-pattern: then molten wax liquid is injected in the secondary die cavity 65, promptly form one after the wax liquid cooling but and coat and in conjunction with the wax-pattern 80 of husky shell 70, as shown in Figure 9;

Step 5, obtain wax-pattern: the removal model, take out wax-pattern 80.

The wax-pattern of making according to this method 80 is identical with the goods of last embodiment, is attached with the husky shell 70 of one deck on the internal face of its housing section, can make wax-pattern 80 not yielding, has improved the form accuracy of foundry goods.

Claims (2)

1. A method for making a wax mold of a golf wood club head shell, characterized in that it comprises the following steps: a. Model for arranging the wax model: a model is composed of an outer mold component and an inner mold component, and the mold cavity of the model is in the shape of the required wax model, which includes a shell corresponding to the shape of the aforementioned wood rod head shell The body part and at least one gate part connected with the shell part; the inner mold assembly is correspondingly located inside the shell part; b. Wax mold forming: inject molten wax liquid into the mold cavity, make the wax liquid fill the mold cavity and form a wax mold after cooling; c. Replace the inner mold assembly of the model: the outer mold assembly and wax model of the model are not moved, but the inner mold assembly is removed and replaced with another set of smaller inner mold assemblies. A secondary mold cavity corresponding to the shape of the inner wall surface is formed between the component and the inner wall surface of the shell part of the wax model; d. Shaping the sand shell: inject the mortar into the secondary mold cavity, make the mortar fill the secondary mold cavity, and form a sand shell attached to the inner wall surface of the wax mold shell after drying; e. Obtaining the wax model: remove the model and take out the wax model; the sand shell attached to the inner wall surface of the shell of the wax model has a predetermined thickness and hardness, and can support the shell to resist external forces. 2. A method for making a wax mold of a golf wood club head shell, characterized in that it comprises the following steps: a. The model for arranging the sand shell: a model is composed of an outer mold component and an inner mold component, and the mold cavity of the model corresponds to the shape of the inner wall surface of the wooden pole head shell; the inner mold component is correspondingly located on the wooden pole the interior of the club head shell; b. Forming the sand shell: inject the mortar into the mold cavity, make the mortar fill the mold cavity and form a sand shell after drying; c. Replace the outer mold components of the model: do not move the inner mold components and sand shell of the model, but remove the outer mold components and replace them with another set of larger outer mold components. A secondary mold cavity is formed between the component and the sand shell. The shape of the secondary mold cavity is the shape of the required wax pattern, which includes a shell part corresponding to the shape of the aforementioned wood club head shell, and at least one The gate part where the shell part is connected; d. Forming the wax mold: inject molten wax liquid into the secondary mold cavity, make the wax liquid fill the secondary mold cavity, and form a wax mold that is coated and combined with the sand shell after cooling; e. Obtaining the wax model: remove the model and take out the wax model; the sand shell attached to the inner wall surface of the shell of the wax model has a predetermined thickness and hardness, and can support the shell to resist external forces.

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