Epoxy high-temperature mold

Abstract

The utility model provides an epoxy high-temperature mold, relates to the technical field of molds, and aims to solve the problems that a common glass fiber reinforced plastic mold is relatively large in thermal expansion coefficient, is easy to thermally deform and is greatly damaged by high-temperature curing when the conventional mold is used for producing. The epoxy high-temperature mold comprises a mold body and a mounting component, the mold body is an epoxy high-temperature mold body, and the mold body comprises a main body made of an epoxy composite material; the mounting assembly is connected with the mold body, the gap part of the framework is welded in a # shape, and the framework is in contact with the mold body. The main body can bear higher temperature, can meet the requirements of various high-temperature processes, can keep the stability and the dimensional precision of a mold in the manufacturing of a high-temperature cured and molded composite material, is small in linear shrinkage rate, is favorable for ensuring the precision and the quality of a product, has better tolerance to various resins, and is suitable for large-scale production. And the epoxy mold can be repaired in a repairing manner, so that the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mould technical field, more specifically, it is especially related to an epoxy high temperature mould. BACKGROUND

[0002] As a kind of lightweight, high strength, corrosion-resistant composite material, prepreg has wide application prospect in aerospace, wind power, high-speed rail and other fields, with the increasing demand of people on new materials, the market size of prepreg is expected to continue to expand in the future, but prepreg has very harsh use conditions such as transportation, storage, layering, high temperature curing, etc., such as high temperature curing, curing temperature needs 120 DEG C or more heating curing, and keeping the temperature at least four hours, the mould is very strict, must use high temperature mould to ensure product size and appearance size.

[0003] Based on the existing technology, it is found that the thermal expansion coefficient of ordinary glass steel mould is relatively large during production, and the mould is prone to thermal deformation in high temperature environment, which will lead to the decrease of size precision of the mould, affect the size accuracy and consistency of the final product, and the damage of high temperature curing to ordinary glass steel mould is larger, and the maintenance cost of mould is high. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides an epoxy high temperature mould, to solve the problem that the thermal expansion coefficient of ordinary glass steel mould is relatively large during production of the existing mould, and the mould is prone to thermal deformation in high temperature environment, which will lead to the decrease of size precision of the mould, affect the size accuracy and consistency of the final product, and the damage of high temperature curing to ordinary glass steel mould is larger, and the maintenance cost of mould is high.

[0005] The purpose and effect of the utility model of an epoxy high temperature mould are achieved by the following specific technical means:

[0006] An epoxy high temperature mould, comprising a mould body and a mounting assembly;

[0007] The mould body is an epoxy high temperature mould body, and the mould body comprises: a main body, the main body is an epoxy composite material, the main body is provided with metal reinforcing ribs inside, and the main body is distributed in a grid shape inside;

[0008] The mounting assembly is connected with the mould body, and the mounting assembly comprises: a framework, the framework is in contact with the main body.

[0009] Further, the mould body further comprises:

[0010] A gel coat layer is sprayed on the main body.

[0011] Further, the mould body further comprises:

[0012] The epoxy layer two is made of resin and is laid on the epoxy layer one; the epoxy layer two is made of resin and is laid on the epoxy layer one; the epoxy layer three is made of unsaturated polyester resin and is coated between the main body and the framework.

[0013] Further, the installation assembly further comprises:

[0014] The wheels are arranged in four groups and are fixedly installed at the bottom of the framework.

[0015] Further, the installation assembly further comprises:

[0016] The support frames are arranged in multiple groups and are welded at the bottom and both sides of the framework.

[0017] Further, the installation assembly further comprises:

[0018] The H-beams are arranged in multiple groups, are welded at the gaps of the framework and are connected with the support frames.

[0019] Compared with the prior art, the utility model has the advantages of the following beneficial effects:

[0020] 1. In the device, the main body can bear high temperature, the highest use temperature of part products can reach 200-250 DEG C, can satisfy the demand of multiple high temperature processes, in the high temperature solidification forming composite material manufacturing, can keep the stability and size precision of the mold, its linear shrinkage rate is small, the volume is basically unchanged in the solidification process, the shrinkage rate is small, in the heating and cooling process, the size change of the mold is small, is favorable to guarantee the precision and quality of the product, is applicable to the manufacture of the high dimensional accuracy requirement spare part, has good resistance to multiple resins, is not easy to be eroded by chemical substances, prolongs the service life of the mold, is applicable to some chemical environment is relatively severe working condition, when the mold appears abrasion or local damage, the epoxy mold can be repaired through the repairing mode, the repaired mold can still continue to be used, reduces the production cost;

[0021] 2. In the device, the framework is arranged, the wheels are installed at the bottom of the framework; the small mold is placed on the framework so as to facilitate the movement of the mold, the support frames arranged on the framework can enhance the support force of the main body, and the H-beams can enhance the bearing capacity of the main body. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic diagram of the utility model.

[0023] Figure 2 It is the main body three-dimensional structure schematic diagram of the utility model.

[0024] Figure 3 Figure 1 is a three-dimensional structure schematic diagram of the installation assembly of the utility model.

[0025] Figure 4 Figure 2 is a partial structure schematic diagram inside the mold body of the utility model.

[0026] In the figure, the corresponding relationship of component names and figure numbers is as follows:

[0027] 1, mold body; 101, main body; 102, gel coat layer; 103, epoxy layer one; 104, epoxy layer two; 105, epoxy layer three; 2, installation assembly; 201, framework; 202, wheel; 203, support frame; 204, cross beam. DETAILED DESCRIPTION

[0028] The embodiment of the utility model will be described in further detail below in combination with the drawings and examples.

[0029] Example:

[0030] As shown in the accompanying drawings: Figure 1 to the accompanying drawings: Figure 4 As shown in the accompanying drawings:

[0031] The utility model provides an epoxy high-temperature mold, which comprises a mold body 1 and an installation assembly 2.

[0032] The mold body 1 is an epoxy high-temperature mold body, and the mold body 1 comprises: a main body 101, the main body 101 is an epoxy composite material, the main body 101 is internally provided with metal reinforcing ribs, and the main body 101 is internally distributed in a grid shape; the grid-shaped distribution inside the main body 101 can enhance the structural strength of the main body 101.

[0033] The installation assembly 2 is connected with the mold body 1, and the installation assembly 2 comprises: a framework 201, the framework 201 is in contact with the main body 101; the steel framework 201 is welded on the back of the main body 101 after being pasted to strengthen, the longest direction is mainly used for welding of the framework 201, that is, the longest direction is strengthened by using a full-length steel pipe, the welded framework 201 is placed on the back of the main body 101, the position of the framework 201 is marked by using a marker pen at the position of the main body 101 and the framework 201, the pasted surface of the welded framework 201 and the main body 101 is polished and derusted by using an angle grinder, burrs and sharp corners are removed to avoid hand injury, the polished place is cleaned by using high-pressure air, then the pasted area is wiped clean by using acetone, so that the adhesion strength of the framework 201 after pasting is guaranteed.

[0034] Among them, the mold body 1 further comprises:

[0035] The glue layer 102 is sprayed on the main body 101, the thickness of the glue layer 102 is controlled between 0.8-1mm, and the spraying is performed twice with an interval of 30-60 minutes at room temperature, and the glue layer thickness is detected by a card after the spraying is completed.

[0036] The mold body 1 further comprises:

[0037] The epoxy layer one 103 is made of vinyl resin material, and the epoxy layer one 103 is laid on the glue layer 102; when the mold glue is not sticky, 30g of surface felt is laid, a mahai hair roller is used to roll and defoam the surface felt, a brush is used to defoam the corner, the surface felt is required to be flat and wrinkle-free, and 2 layers of EEMC300-1270 chopped felt are laid according to the above sequence; the epoxy layer two 104 is made of resin, and the epoxy layer two 104 is laid on the epoxy layer one 103, and the laying sequence of the epoxy layer one 103 is used for laying the zero shrinkage layer, the laying sequence is 300 felt+04 square cloth+300 felt+300 felt+300 felt+04 square cloth+300 felt+300 felt+300 felt+300 felt+04 square cloth+300 felt+300 felt+plywood 10mm+450 felt; the epoxy layer three 105 is made of unsaturated polyester resin material, and the epoxy layer three 105 is applied between the main body 101 and the framework 201; the epoxy resin and the putty are mixed, 1 layer of 450g / m2 chopped felt is used to paste the framework 201 to the main body 101, so that the two become one, the square tube periphery felt cloth is compacted, and the appearance is beautiful.

[0038] The installation assembly 2 further comprises:

[0039] The wheels 202 are provided in four groups, and the wheels 202 are fixedly installed at the bottom of the framework 201; the small mold is placed on the tooling vehicle to facilitate the movement of the mold.

[0040] The installation assembly 2 further comprises:

[0041] The support frame 203 is in a reverse triangular structure, the support frame 203 is provided in multiple groups, and the support frame 203 is welded at the bottom and both sides of the framework 201; the support frame 203 is provided in a reverse triangular structure, and is provided in multiple groups, so that the bearing capacity of the cross beam 204 is enhanced, and the support force of the mold is enhanced.

[0042] The installation assembly 2 further comprises:

[0043] The H-beam 204 is provided in multiple groups, is welded at the gap of the framework 201, and is connected with the support frame 203; the H-beam 204 is welded in a "H" shape, the gap size is controlled within 300*300 mm, for a large mold, the height from the wooden mold surface to the wheel bottom is controlled between 1000-1100 mm; the mold placed on the tooling trolley has a height from the wooden mold surface to the bottom of the framework 201 controlled between 400-500 mm, facilitating the employees to perform the product paste.

[0044] The specific use mode and role of the embodiment are as follows:

[0045] In the utility model, the main body 101 is respectively provided with a glue coating layer 101, an epoxy layer one 103 and an epoxy layer two 104, and the main body 101 and the framework 201 are pasted through an epoxy layer three 105, are pushed into a heating room for solidification, need to pass through three rounds of temperature solidification, low temperature solidification < 80 DEG C: the solidification time is longer under this condition, generally 12-24 hours, low temperature solidification can make the reaction relatively slow and stable, is favorable to reduce internal stress and deformation, medium temperature solidification 80-120 DEG C: the medium temperature solidification time is generally 3-10 hours not equally. In this temperature interval, the solidification reaction rate is relatively fast, can reach the good solidification effect in a relatively short time, high temperature solidification > 120 DEG C: the high temperature solidification time can be shortened to 1-3 hours or so. High temperature can greatly accelerate the solidification reaction speed, thereby making the main body 101 have excellent high temperature resistance, stability, corrosion resistance and the like.

Claims

1. An epoxy-based high-temperature mold characterized by: Including mold body (1) and installation assembly (2); The mold body (1) is an epoxy high-temperature mold body, and the mold body (1) comprises: a main body (101) made of epoxy composite material, the main body (101) is internally provided with metal reinforcing ribs, and the main body (101) is internally distributed in a grid shape; The installation assembly (2) is connected with the mold body (1), and the installation assembly (2) comprises: a framework (201) in contact with the main body (101).

2. The epoxy high-temperature mold of claim 1, wherein: The mold body (1) further comprises: A glue coating layer (102) sprayed on the main body (101).

3. The epoxy high-temperature mold of claim 1, wherein: The mold body (1) further comprises: An epoxy layer one (103) made of vinyl resin material, which is laid on the glue coating layer (102); an epoxy layer two (104) made of resin, which is laid on the epoxy layer one (103); and an epoxy layer three (105) made of unsaturated polyester resin, which is applied between the main body (101) and the framework (201).

4. The epoxy high-temperature mold of claim 1, wherein: The installation assembly (2) further comprises: Four groups of wheels (202) fixedly installed at the bottom of the framework (201).

5. The epoxy high-temperature mold of claim 1, wherein: The installation assembly (2) further comprises: Support frames (203) in the shape of inverted triangles, which are provided in multiple groups and welded to the bottom and both sides of the framework (201).

6. An epoxy high temperature mold as claimed in claim 5, wherein: The installation assembly (2) further comprises: Multiple groups of I-beams (204) welded to the gaps on the framework (201) and connected with the support frames (203).

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