CN105014008A

CN105014008A - Female-mould-free resin mould and manufacturing method thereof

Info

Publication number: CN105014008A
Application number: CN201510461742.9A
Authority: CN
Inventors: 王峰; 刘岳; 纳建虹; 闫小龙; 王绍刚
Original assignee: Ningxia Kocel Pattern Co Ltd
Current assignee: Kocel Machinery Co Ltd
Priority date: 2015-07-31
Filing date: 2015-07-31
Publication date: 2015-11-04
Anticipated expiration: 2035-07-31
Also published as: CN105014008B

Abstract

The invention relates to a female-mould-free resin mould and a manufacturing method thereof. The upper surface of a shape follow-up casting (3) is provided with holes and subjected to sand blasting. The upper surface of the shape follow-up casting (3) is smeared with muddy resin to form a resin layer; after the resin layer is air-dried, a resin machining layer (1) on the resin layer is machined and removed, and a mould effective resin layer (2) is formed under the resin layer. The manufacturing method includes the following steps that the mould effective surface profile is shrunk by A mm, and shelling treatment is conducted according to the wall thickness of 8-10 mm; the casting is cast through an evaporative mould casting process; a casting blank is perforated, subjected to sand blasting and cleaned completely; the surface of the casting is smeared with the machinable muddy resin by B mm, wherein B is larger than A; after the resin is air-dried, the resin machining layer with the thickness of (B-A) mm is removed. The female-mould-free resin mould and the manufacturing method thereof have the beneficial effects that the characteristics that the surface is smooth and demoulding is easy are used in combination with the performance that the casting blank is easily bonded to the resin, in this way, the simple and efficient manufacturing method is provided for manufacturing the single resin mould.

Description

A kind of resin die without former and preparation method thereof

Technical field

The invention belongs to casting field, be specifically related to a kind of resin die without former and preparation method thereof.

Background technology

Common foundry casting mould can be divided into metal pattern, wooden model and Mold for Plastics three types by material.Metal pattern is divided into aluminum dipping form and swage etc. again, and metal species mould strength is good, the life-span is long, but processing charges is high, and the unsuitable execute-in-place of heavier mass.Wooden model very easily damages, and service life is shorter.Resin mold has the features such as quality is light, the easy demoulding of smooth surface, high strength, high rigidity, but resin mold is but not easy to make.

The mode that current use resin makes mould is: use producing wood former, female mold surfaces is waxed, brushing resin 5-6mm, paving one deck glass cloth (increase mechanical strength of resin), brushing resin 10-15mm again, is finally pressed into the metallic framework of welding or yoke as reinforcement in resin.

Ordinary resin Mold Making process is loaded down with trivial details, needs to make wooden frame or metallic framework, and be difficult to cause resin waste with type, mold integral intensity is low; And need to make former, fabrication cycle is long, cost is high.

Summary of the invention

The present invention is directed to the deficiencies in the prior art, a kind of resin die without former and preparation method thereof is proposed, utilize the features such as resin quality is comparatively light, the easy demoulding of smooth surface, high strength, high rigidity, high in conjunction with casting strength, easily can be combined with mold casting, spray and interlaminar resin performance, for the making of single-piece resin die provide another kind simply, efficiently to make approach.

In order to solve above technical problem, the invention provides following technical scheme:

Without a resin die for former, comprise the effective resin bed of mould (2), with type foundry goods (3), it is characterized in that, the upper surface with type foundry goods (3) has hole, and its upper surface is through blasting treatment;

Further, the effective resin bed of mould (2), obtains in the following way:

Use machinable pureed resin to smear formation resin bed at the upper surface with type foundry goods (3), after resin bed is air-dry, use Digit Control Machine Tool process and remove the process of resin layer (1) on resin bed top, the effective resin bed of mould (2) is formed at bottom.

Further, the described wall thickness with type foundry goods (3) is cast into 8 to 10mm.

Further, the thickness using pureed resin to smear is 10mm.

Without a resin die preparation method for former, it is characterized in that, comprise the steps:

1) three-dimensional software designing cast is used: in three-dimensional software, be positive number by mould active surface reduced profile Amm, A, and undertaken taking out shell process by 8-10mm wall thickness, thus obtain the size with type foundry goods;

2) cast: use lost foam casting process casting by the model designed;

3) punch, sandblasting clearing up: spray punches, then sandblasting also clean out;

4) resin is smeared: use and can process pureed resin to spread upon Bmm, B on cast(ing) surface be positive number, and B is greater than A;

5) processing mold: after resin is air-dry, uses CNC Digit Control Machine Tool processing resin bed, removes the process of resin layer of (B-A) mm thickness, thus obtain resin die.

Further, described Amm is 5mm, and described Bmm is 10mm.

Beneficial effect of the present invention is:

1) with type foundry goods and resin-bonded, manufacture resin die, there is the features such as the easy demoulding, high strength, high rigidity.And solve usual resins and be molded and do to need to make former and the loaded down with trivial details flow process making wooden frame or weld metal skeleton.

2) in resin bed without fiber, than timber with metal is easier processes, more conventional former processing and fabricating resin mold method saves about 30% processing charges, and comparatively metal pattern is processed and saved about 70% processing charges.

Accompanying drawing explanation

Fig. 1 is with type foundry goods resin die schematic diagram.

Fig. 2 is common weld metal skeleton resin die schematic diagram.

In figure: 1, process of resin layer, 2, mold tree lipid layer, 3, with type foundry goods.

Detailed description of the invention

Below in conjunction with Figure of description, the specific embodiment of the present invention is described,

Composition graphs 1, Fig. 2, a kind of resin die without former, comprise the effective resin bed of mould (2), with type foundry goods (3), it is characterized in that, the upper surface with type foundry goods (3) has hole, and its upper surface is through blasting treatment;

Further, the effective resin bed of mould (2), obtains in the following way:

Further, the thickness using pureed resin to smear is 10mm.

2) cast: use lost foam casting process casting by the model designed;

Further, described Amm is 5mm, and described Bmm is 10mm.

Said method is a kind of resin die without former and preparation method thereof, manufacturing process does not need to make former, only need cast foundry goods (the wall thickness 8-10mm with type wall thickness, spray need not be processed), then on foundry goods, smear the thick resin bed of about 10mm, finally processing obtains resin die, and Making programme is simple, is applicable to the making of single mode single-piece resin die.

In addition, obtain mould using the foundry goods with type wall thickness as skeleton and processing resin, instead of use former to make mould, the foundry goods with type wall thickness ensures mould, and resin layer thickness is identical everywhere, reduces resin use amount.

Above a kind of resin die without former that the application provides and preparation method thereof is described in detail, apply embodiment herein to set forth the principle of the application and embodiment, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.

Claims

1., without a resin die for former, comprise the effective resin bed of mould (2), with type foundry goods (3), it is characterized in that, the upper surface with type foundry goods (3) has hole, and its upper surface is through blasting treatment;

Further, the effective resin bed of mould (2), obtains in the following way:

2. a kind of resin die without former according to claim 1, is characterized in that, the wall thickness of described conformal foundry goods (3) is cast into 8 to 10mm.

3., without a resin die preparation method for former, it is characterized in that, comprise the steps:

Use three-dimensional software designing cast: in three-dimensional software, be positive number by mould active surface reduced profile Amm, A, and undertaken taking out shell process by 8-10mm wall thickness, thus obtain the size with type foundry goods;

Casting: use lost foam casting process casting by the model designed;

Punching, sandblasting clearing up: spray punches, then sandblasting also clean out;

Smear resin: use and can process pureed resin to spread upon Bmm, B on cast(ing) surface be positive number, and B is greater than A;

Processing mold: after resin is air-dry, uses CNC Digit Control Machine Tool processing resin bed, removes the process of resin layer of (B-A) mm thickness, thus obtain resin die.

4. a kind of resin die preparation method without former according to claim 3, it is characterized in that, described Amm is 5mm, and described Bmm is 10mm.