CN2541000Y - Improved Wax Model Structure of Golf Wood Club Head Shell - Google Patents

Abstract

An improved wax mold structure for a golf wood club head shell comprises a shell portion made of wax and at least one pouring portion, wherein the shape of the shell portion corresponds to the shape of the aforementioned club head shell, and each of the pouring portions is connected to a predetermined position of the shell portion; a layer of sand shell is attached to the inner wall surface of the shell portion of the wax mold, and the sand shell has a predetermined thickness and hardness, can support the shell portion to resist external forces, make the wax mold not easily deformed, and cast the club head shell with high precision.

Description

Improved Wax Model Structure of Golf Wood Club Head Shell

technical field

The utility model relates to a golf club head, in particular to an improved structure of a wax mold of a golf wood club head shell.

Background technique

The conventional procedure for making golf wood club head shells by the lost-wax casting method is roughly as follows: First, a plurality of wax molds are prepared by injection technology (each wax mold has a shell portion corresponding to the shape of the club head shell and a gate portion), Burn the sprues of several wax models to a wax seat (main runner), then soak and dry to make a layer of sand adhere to the wax surface, and then sinter the sand layer at high temperature to melt the wax and Get the hollow sand shell, then put the sand shell into the mold box and fill the casting sand around it to make a casting mold. After pouring molten metal into the mold cavity to complete the casting, knock out the casting sand to get the casting and cut off the sprue, you can get Multiple head shells. A metal plate is covered and welded on the opening of the shell to complete a golf wood club head.

The following problems will occur when making super-large (oversize) wood club heads with the above-mentioned preparation method: because the shell wall of the super-large club head is extremely thin, the shell wall of the wax mold shell part is relatively only 0.8-1.2mm thick, If the wax molds are stacked together after injection molding to wait for subsequent processing, the thin wall of the wax shell may be deformed under pressure during stacking and extrusion. , and the weight of the mortar when it is picked up from the mortar, it is also very easy to deform the wax shell with a thickness of less than 1mm, resulting in the loss of precision of the cast rod head shell.

Utility model content

The main purpose of this utility model is to provide an improved structure of the wax mold of the golf wood club head shell, which can resist relatively large external force, so it is less likely to be deformed, so that the precision of the cast club head shell is higher .

In order to achieve the above purpose, the utility model provides an improved wax mold structure for the head of a golf wood club, which includes a shell part made of wax and at least one gate part, wherein the shape of the shell part corresponds to the aforementioned The shape of the rod head shell, each of the gate parts is connected to the predetermined position of the shell part; it is characterized in that a layer of sand shell is attached to the inner wall surface of the shell part of the wax mold, and the sand shell has a predetermined thickness and Hardness, which can support the shell part against external force.

In the wax mold improved structure of the golf wood club head shell, the composition of the sand shell is zirconia, aluminum oxide or silicon oxide.

Description of drawings

Fig. 1 is the structural representation of the wax pattern that a preferred embodiment of the present invention provides;

2 to 5 are schematic diagrams of the wax mold manufacturing process in a preferred embodiment of the present invention.

Detailed ways

The utility model will be described in detail below by citing a preferred embodiment in conjunction with the drawings.

Please refer to Fig. 1 first, which is a schematic structural view of a wax mold 10 provided by a preferred embodiment of the present invention, which includes a housing part 12 and a gate part 14 made of wax, the housing part 12 The shape is corresponding to the shape of the wood club head shell. For the convenience of reading and explanation, the diagram used in this embodiment shows the opening of the club head shell on the bottom surface of the club head, and the gate part 14 is then connected to the heel position of the club head, but in production practice, the shell opening and the gate portion can be located at other different positions, the more common one is to set the opening at the ball hitting position on the front of the club head, and The gate portion is then connected to the top and bottom edge of the front opening, or the back of the rod head; the structural feature of the present utility model is that a layer of sand shell 20 is attached to the shell portion 12 inner wall surface of the wax mold 10, and its composition is the same as The same is used in the dipping operation of conventional dewaxing casting, which belongs to the so-called "surface sand" or "core sand" in casting sand, such as zirconia, alumina, silicon oxide, etc.

Since the sand shell 20 has a predetermined thickness and hardness, the inner support shell portion 12 can withstand external force, so even the extremely thin shell wall of the above-mentioned super-large club head will not be deformed by stacking and extrusion. And the wax pattern 10 of the present utility model can be bonded to same wax base equally, and then soak mortar all together afterwards, make the surface of each wax pattern 10 inside and outside all adhere to a layer of sand (will cover the inner wall surface The sand shell 20) is made into a mold for casting; in the dipping operation, because each of the wax molds 10 has a hard sand shell 20 inside, so when immersing in the mortar and picking up from the mortar, it will not Deformation due to excessive external force. Of course, the wax pattern 10 can also be sprayed to attach a sand layer to the surface, and then made into a mold for casting. Since the wax mold 10 of the present invention will not be deformed during the manufacturing process, the finally cast rod head shell also has extremely high shape accuracy, which can improve the production capacity and the quality of the finished product.

The manufacture method of this wax model 10 is roughly as follows:

Step 1: As shown in Fig. 2, same as when conventionally using injection technology to form a wax pattern, form a model 50 with an outer mold assembly 30 and an inner mold assembly 40, and the mold cavity 52 of this model 50 corresponds to the required the shape of the wax model;

Step 2: inject molten wax liquid into the mold cavity 52, and form a wax mold 10 whose shape is as described above after cooling, as shown in FIG. 3 ;

Step 3: After the wax mold 10 is formed, remove the inner mold assembly 40 without moving the outer mold assembly 30 of the model 50 and the wax mold 10, and replace it with another set of smaller inner mold assemblies 45 , as shown in Figure 4, between the smaller inner mold assembly 45 and the inner wall surface of the shell part 12 of the wax model 10, there is a secondary mold cavity 54 corresponding to the shape of the inner wall surface;

Step 4: Then inject the mortar into the secondary mold cavity 54 by injection technique or other methods, and form the sand shell 20 after drying, as shown in FIG. 5 ;

Step five: remove the model, and take out the wax model 10 coated with the sand shell 20 .

Another production method is similar to the previous method, which is to arrange the mold cavity shape corresponding to the model of the sand shell (also composed of inner mold components and outer mold components), inject mortar to form the sand shell, and then place the outer surface of the sand shell Replace the external mold assembly with another set of larger external mold assemblies. The secondary mold cavity formed between the external mold assembly and the sand shell corresponds to the shape of the wax model, and the wax liquid can be injected. A wax pattern covering the sand shell is formed.

Claims (2)

1. An improved structure of a wax mold of a golf wood club head shell, which comprises a shell portion made of wax and at least one gate portion, wherein the shape of the shell portion corresponds to the aforementioned club head shell The shape of the body, each of the gate parts is connected to the predetermined part of the shell part, it is characterized in that a layer of sand shell is attached to the inner wall surface of the shell part of the wax mold, and the sand shell has a predetermined thickness and hardness, which can be The housing part is supported against external force. 2. The improved structure of the golf wood club head shell wax model according to claim 1, wherein the sand shell is composed of zirconia, aluminum oxide or silicon oxide.

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