CN221561962U

CN221561962U - Square tube forming die containing embedded part composite material

Info

Publication number: CN221561962U
Application number: CN202323194211.7U
Authority: CN
Inventors: 张喆翔; 许杰; 马鹏芸
Original assignee: Weihai Guangwei Composite Material Technology Co ltd
Current assignee: Weihai Guangwei Composite Material Technology Co ltd
Priority date: 2023-11-27
Filing date: 2023-11-27
Publication date: 2024-08-20
Anticipated expiration: 2033-11-27

Abstract

The utility model discloses a square tube forming die for composite material containing embedded parts, which relates to the technical field of composite materials and comprises the following components: the upper die is symmetrically provided with two pairs of positioning holes on the top surface, and two adjacent positioning holes are symmetrically arranged; the lower die is symmetrically and fixedly connected with two pairs of positioning pins on the inner bottom surface of the lower die, and the positioning pins are arranged in one-to-one correspondence with the positioning holes; and grooves are formed in the end parts of any core mould, embedded parts are arranged in the end parts of the other core mould, and the embedded parts are matched with the grooves. According to the utility model, an annular groove is not required to be arranged, and the installation can be completed by inserting the protruding block into the groove, so that the demolding is convenient, and the production efficiency and the overall performance of the product can be improved.

Description

Square tube forming die containing embedded part composite material

Technical Field

The utility model relates to the technical field of composite materials, in particular to a square tube forming die for a composite material containing an embedded part.

Background

Along with the continuous development of the composite material technology, the excellent characteristics of the composite material are gradually perceived by people, the application range is also continuously expanded, and the composite material is mainly applied to various industries such as aerospace, automobiles, rail transit, ships, buildings and the like.

The normal square pipe mould generally mainly comprises an upper mould, a lower mould and a core mould, and the demoulding is carried out from one end, so that for the square pipe with the embedded part in the middle, the core mould needs to be designed into an annular groove with equal length with the embedded part, and the embedded part needs to be placed in the groove, so that the core mould cannot be integrally formed and is demoulded from one end, and otherwise, the demoulding cannot be carried out.

Therefore, a square tube forming die containing embedded part composite materials is needed to solve the above problems.

Disclosure of utility model

The utility model aims to provide a square tube forming die containing an embedded part composite material, which solves the problems existing in the prior art.

In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a square tube forming die containing an embedded part composite material, which comprises:

the upper die is characterized in that two pairs of positioning holes are symmetrically formed in the top surface of the upper die, and two adjacent positioning holes are symmetrically formed;

the lower die is characterized in that two pairs of positioning pins are symmetrically and fixedly connected to the inner bottom surface of the lower die, and the positioning pins are arranged in one-to-one correspondence with the positioning holes;

and grooves are formed in the end part of any one of the two core dies, a lug is arranged on the end part of the other core die, and the lug is matched with the grooves.

Preferably, the two sides of the lower die are respectively provided with a die lifting groove.

Preferably, the outer side walls of the upper die and the lower die are fixedly connected with four hanging rings respectively, and the hanging rings of the upper die and the hanging rings of the lower die are arranged in one-to-one correspondence.

Preferably, glue overflow grooves are symmetrically formed in the inner bottom surface of the lower die.

Preferably, the joint of the upper die and the lower die is a die-matching surface.

Preferably, the upper die and the lower die are respectively provided with a temperature measuring hole for detecting temperature.

The utility model discloses the following technical effects: when the die is used, the two core dies are combined together through the grooves and the protruding blocks, then are placed into a die cavity of the lower die, the upper die and the lower die are quickly installed together through the cooperation of the positioning holes and the positioning pins, the installation is completed, then the die is heated, and the die is removed after the heating is completed, so that a finished product is obtained. According to the utility model, an annular groove is not required to be arranged, and the installation can be completed by inserting the protruding block into the groove, so that the demolding is convenient, and the production efficiency and the overall performance of the product can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the lower die of the present utility model;

FIG. 3 is a side view of the present utility model;

FIG. 4 is a schematic structural view of the finished product of the present utility model;

FIG. 5 is an assembly view of the core mold of the present utility model;

Wherein, 1, upper mould; 2. a lower die; 3. a glue overflow groove; 4. a mold lifting groove; 5. a hanging ring; 6. positioning holes; 7. a die-closing surface; 8. and (5) positioning pins.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Referring to fig. 1 to 5, the utility model provides a square tube forming die for composite material containing embedded parts, which comprises:

the upper die 1 is provided with two pairs of positioning holes 6 symmetrically on the top surface of the upper die 1, and two adjacent positioning holes 6 are symmetrically arranged;

Two pairs of positioning pins 8 are symmetrically and fixedly connected at the bottom in the lower die 2, and the positioning pins 8 and the positioning holes 6 are arranged in a one-to-one correspondence manner;

And grooves are formed in the end part of any core mould, a lug is arranged in the end part of the other core mould, and the lug is matched with the grooves.

When the die is used, the two core dies are combined together through the grooves and the protruding blocks, then are placed into the die cavity of the lower die 2, the upper die 1 and the lower die 2 are quickly installed together through the matching of the positioning holes 6 and the positioning pins 8, the installation is completed, then the heating is carried out, and the demoulding is carried out after the heating is completed, so that a finished product is obtained. According to the utility model, an annular groove is not required to be arranged, and the installation can be completed by inserting the protruding block into the groove, so that the demolding is convenient, and the production efficiency and the overall performance of the product can be improved.

In a further optimized scheme, two sides of the lower die 2 are respectively provided with a die lifting groove 4. The setting of the mould lifting groove 4 is convenient for opening the upper mould 1 and the lower mould 2 after heating is finished, and is convenient for demoulding.

According to a further optimization scheme, the outer side walls of the upper die 1 and the lower die 2 are fixedly connected with four hanging rings 5 respectively, and the hanging rings 5 of the upper die 1 and the hanging rings 5 of the lower die 2 are arranged in one-to-one correspondence. The hanging ring 5 is convenient for carrying and lifting the grinding tool.

Further optimizing scheme, glue overflow grooves 3 are symmetrically formed in the inner bottom surface of the lower die 2. The glue overflow groove 3 is convenient for discharging redundant resin and gas during installation.

In a further optimized scheme, the joint of the upper die 1 and the lower die 2 is a die clamping surface 7.

According to a further optimization scheme, temperature measuring holes for detecting temperature are respectively formed in the upper die 1 and the lower die 2. The temperature measuring holes are mainly used for monitoring the temperature of the die so as to better control the curing and pressurizing parameters.

The working process of the utility model comprises the following steps: after the two core dies are combined together, closing the embedded part at the middle groove part, and then paving;

Placing the laid preform into a die cavity of a lower die 2, fixing the end part of the core die by a clamping groove, and ensuring that the position of the preform is accurate and the preform is tightly attached to the die cavity of the lower die 2;

Then covering the upper die 1, and slightly locking by bolts;

Placing the combined mold into a molding press to be boosted to 2Mpa, applying pressure of 8-10 Mpa after the prepreg is heated and softened at 90-95 ℃, and keeping the curing temperature of 120-130 ℃ for 3 hours to ensure complete curing;

In the heating process, the temperature of the die is measured, when the temperature of the die is increased to 90 ℃, the preform is softened, the resin on the prepreg has certain fluidity, and the bolts are tightened at the moment, so that the die joint of the die is ensured to be less than or equal to 100 mu m;

Heating, preserving heat and solidifying;

Demolding to obtain a blank, wherein the whole product and one end of the demolding machine, where the product is fixed, are kept horizontal up and down and left and right during demolding;

Trimming, polishing, grinding, and processing to obtain square tubes.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims

1. Contain built-in fitting combined material side pipe forming die, its characterized in that includes:

The upper die (1), two pairs of positioning holes (6) are symmetrically formed in the top surface of the upper die (1), and two adjacent positioning holes (6) are symmetrically formed;

The lower die (2), the inner bottom surface of the lower die (2) is symmetrically and fixedly connected with two pairs of positioning pins (8), and the positioning pins (8) are arranged in one-to-one correspondence with the positioning holes (6);

2. The embedded part composite material square tube forming die as claimed in claim 1, wherein: and two sides of the lower die (2) are respectively provided with a die lifting groove (4).

3. The embedded part composite material square tube forming die as claimed in claim 1, wherein: four hanging rings (5) are fixedly connected to the outer side walls of the upper die (1) and the lower die (2) respectively, and the hanging rings (5) of the upper die (1) and the hanging rings (5) of the lower die (2) are arranged in one-to-one correspondence.

4. The embedded part composite material square tube forming die as claimed in claim 1, wherein: glue overflow grooves (3) are symmetrically formed in the inner bottom surface of the lower die (2).

5. The embedded part composite material square tube forming die as claimed in claim 1, wherein: the joint of the upper die (1) and the lower die (2) is a die clamping surface (7).

6. The embedded part composite material square tube forming die as claimed in claim 1, wherein: the upper die (1) and the lower die (2) are respectively provided with temperature measuring holes for detecting temperature.