CN217346357U

CN217346357U - Self-calibration composite material forming equipment

Info

Publication number: CN217346357U
Application number: CN202120502041.6U
Authority: CN
Inventors: ***; 张守玉; 王孝军; 杨杰; 水锋; 杨红野
Original assignee: Nanjing Tesu Composite Material Co ltd
Current assignee: Nanjing Tesu Composite Material Co ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2022-09-02
Anticipated expiration: 2031-03-09

Abstract

The patent discloses a self calibration combined material shaping is equipped, and the design theory of this patent is for introducing the spring in mould hypoplastron below, solves the problem of panel depth of parallelism about the press. The mould pressing device comprises an upper mould bearing plate area, an upper mould heating area, a lower mould bearing plate area and a lower mould heating area; the bearing plate area and the heating area are integrated dies, the rigidity of the dies is guaranteed, and meanwhile, the pressure control principle of spring-pressure columns is adopted, namely, one pressure sensor is arranged on every four springs and pressure transmission columns, and the equal pressure performance of the die surface is guaranteed. In addition, the integrated die adopts a functional layering division mode of the bearing plate area and the heating area, and the heating area is positioned on the inner side, so that the effect of rapid heating is realized.

Description

Self-calibration composite material forming equipment

Technical Field

The utility model belongs to the combined material field, especially a self calibration combined material shaping is equipped.

Background

Products prepared by adopting a compression molding process are widely applied to the fields of aerospace, rail transit, automobile parts, new energy development and the like, but the industrial molding press has the problems of low temperature rising speed, low temperature lowering speed, incapability of independently controlling local temperature and the like.

Chinese patent CN 104441695B discloses a method for preparing low porosity PPS/CFF thermoplastic composite material, which comprises alternately laminating CFF and PPS film (or non-woven fabric), heating to 320-340 deg.C, and melting PPS; after the PPS is completely melted, pressurizing the PPS melt and the CFF to 0.5-2.1 MPa; then, cooling at a certain speed, cooling to room temperature, and demolding. The patent prepares the composite material with low porosity from the angles of material selection and layering, and ignores that self calibration cannot be carried out due to poor parallelism of an upper die and a lower die in the process of die pressing.

In order to fundamentally solve the cause of porosity generation, self-calibration composite material forming equipment and a process thereof are developed.

Disclosure of Invention

An object of the utility model is to provide a self calibration combined material shaping is equipped, introduces the spring at the mould, solves the problem of panel depth of parallelism about the press, and location depth of parallelism self calibration.

The purpose of the utility model is realized like this: the die bearing plate area and the die heating area adopt an integrated structure mode, so that the rigidity and the quick heating effect of the die are guaranteed; meanwhile, the bearing plate area and the heating area are functionally divided in layers, so that the functional interference-free operation is realized. Specifically, a grid thinning method is adopted in a bearing plate area, namely, a heating platform is divided into a plurality of unit bearing areas, and independent pressure control is carried out on the unit bearing areas, so that the refined pressure control of the die surface is realized; meanwhile, the pressure control mode of a spring-pressure column is adopted in the unit bearing plate area, namely, each unit is independently provided with a mode of 4 springs, 4 pressure columns and 1 pressure sensor, wherein the pressure columns adopt an oil pressure or air pressure mode to adjust pressure, so that the fine pressure control of the die surface is realized, the problem of parallelism of an upper panel and a lower panel of a press is solved, the self-calibration of the parallelism is realized, and the isostatic pressure of the die surface is ensured.

Furthermore, the upper die force bearing plate area is divided into a plurality of units by the principle of square grids, the first row is a 1-1a unit pressure control area, a 1-2a unit pressure control area, a 1-3a unit pressure control area, a 1-4a unit pressure control area and the like, and the 4 th row of … … is a 4-1a unit pressure control area, a 4-2a unit pressure control area, a 4-3a unit pressure control area, a 4-4a unit pressure control area and the like; each unit is provided with a mode of 4 springs and 4 pressure columns, so that the unitized fine air pressure is guaranteed, and meanwhile, the centers of the 4 spring-pressure columns are provided with corresponding pressure sensors which penetrate through the bearing plate area and are connected to the heating area.

Furthermore, the upper die heating area is positioned below the upper die bearing plate area, and the heating mode adopts a resistance heating pipe for heating.

Furthermore, the lower die force bearing plate area is divided into a plurality of units by taking a square grid as a principle, the first row is respectively a 1-1b unit pressure control area, a 1-2b unit pressure control area, a 1-3b unit pressure control area, a 1-4b unit pressure control area and the like, and the 4 th row of … … is respectively a 4-1b unit pressure control area, a 4-2b unit pressure control area, a 4-3b unit pressure control area, a 4-4b unit pressure control area and the like (the division is similar to that of the upper die and is not shown); each unit is provided with a mode of 4 springs and 4 pressure columns, so that the unitized fine air pressure is guaranteed, and meanwhile, the centers of the 4 spring-pressure columns are provided with corresponding pressure sensors which penetrate through the bearing plate area and are connected to the heating area.

The utility model has the advantages that: in the molding process of die pressing, the precise pressure control of the die surface is realized, the problem of parallelism of an upper panel and a lower panel of a press is solved, the self-calibration of the parallelism is realized, and the isostatic pressing property of the die surface is ensured.

Drawings

Fig. 1 is an overall schematic view of the present invention.

Fig. 2 is a schematic front sectional view.

Fig. 3 "spring-pressure column" principle drawing.

1-upper die bearing plate area, 2-upper die heating area, 3-lower die heating area, 4-lower die bearing plate area, 5-upper die spring pressure control device, 6-upper die pressure sensor, 7-upper die heating device, 8-lower die heating device, 9-lower die pressure sensor, 10-lower die spring pressure control device, 11-lower die pressure column pressure control device, 12-upper die pressure column pressure control device, 13-main control device.

Detailed description of the preferred embodiments

The following description will further describe the embodiments of the present invention with reference to the accompanying fig. 1-3.

The utility model discloses a self calibration combined material shaping is equipped and technology thereof, including last mould bearing plate region 1, go up mould heating region 2, bed die heating region 3, bed die bearing plate region 4, go up mould spring accuse pressure device 5, go up mould pressure sensor 6, 7-go up mould heating device 7, bed die heating device 8, bed die pressure sensor 9, bed die spring accuse pressure device 10, 11-bed die pressure post accuse pressure device 11, go up mould pressure post accuse pressure device 12, master control pressure device 13.

The mould pressing device is characterized in that pressure control programs of upper moulds 1-1a, 1-2a, 1-3a, 1-4a and the like and lower moulds 1-1b, 1-2b, 1-3b, 1-4b and the like are designed according to a forming process, after the temperature reaches a set temperature and is kept for 30min, a product mould is placed between the upper mould and the lower mould, and the operation is carried out according to the mould pressing process; in the forming process, each unit can be independently controlled to control the pressure, so that the product quality is ensured.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention or is to be construed as explaining the technical principles of the present invention, and is not intended to limit the present invention, which can be variously modified and varied by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-calibration composite material forming device comprises an upper die bearing plate area (1), an upper die heating area (2), a lower die bearing plate area (4), a lower die heating area (3), an upper die spring pressure control device (5), an upper die pressure column pressure control device (12), a lower die spring pressure control device (10), a lower die pressure column pressure control device (11) and a main pressure control device (13);

the upper die bearing plate area (1) and the lower die bearing plate area (4) are characterized in that a grid thinning mode is adopted, the bearing plate area is divided into a plurality of unit independent control areas, pressure control is carried out in the areas in a spring-pressure column mode, namely, a pressure sensor is configured for every four springs and pressure columns, and the spring-pressure columns are introduced into the bearing plate area, so that the problem of parallelism of an upper panel and a lower panel of a press is solved, and the self-calibration of the parallelism is realized;

the pressure control is characterized by being divided into two stages of pressure control, wherein: the primary pressure control is a main pressure control device (13), and the secondary pressure control is composed of an upper die spring pressure control device (5), an upper die pressure column pressure control device (12), a lower die spring pressure control device (10) and a lower die pressure column pressure control device (11); wherein, the primary pressure control provides the main forming pressure, and the secondary pressure control finely adjusts the mould pressing, thereby ensuring the isopression of the mould surface and the parallelism of the upper panel and the lower panel of the press; the upper die pressure column pressure control device (12) and the lower die pressure column pressure control device (11) provide the pressure required by the die in an air pressure or oil pressure mode; the main pressure control device (13) adopts an oil pressure mode to provide the pressure required by the die.

2. The self-calibrating composite molding apparatus of claim 1, wherein: the upper die bearing plate area (1) is square and is positioned above the upper die heating area (2), and the area is equally divided into a plurality of heating units according to square grids; the first row is respectively a 1-1a unit pressure control area, a 1-2a unit pressure control area, a 1-3a unit pressure control area and a 1-4a unit pressure control area, the second row is respectively a 2-1a unit pressure control area, a 2-2a unit pressure control area, a 2-3a unit pressure control area and a 2-4a unit pressure control area, the third row is respectively a 3-1a unit pressure control area, a 3-2a unit pressure control area, a 3-3a unit pressure control area and a 3-4a unit pressure control area, and the 4 th row is respectively a 4-1a unit pressure control area, a 4-2a unit pressure control area, a 4-3a unit pressure control area and a 4-4a unit pressure control area; four 'spring-pressure columns' are uniformly distributed in the upper die bearing plate area (1), a corresponding pressure sensor is arranged in the center of the upper die bearing plate area, and the pressure sensor penetrates through the bearing plate area and is connected to the heating area.

3. The self-calibrating composite molding apparatus of claim 1, wherein: the lower die bearing plate area (4) is square and is positioned below the lower die heating area (3), and the area is equally divided into a plurality of heating units according to square grids; the 1 st row is respectively a 1-1b unit pressure control area, a 1-2b unit pressure control area, a 1-3b unit pressure control area and a 1-4b unit pressure control area, the second row is respectively a 2-1b unit pressure control area, a 2-2b unit pressure control area, a 2-3b unit pressure control area and a 2-4b unit pressure control area, the third row is respectively a 3-1b unit pressure control area, a 3-2b unit pressure control area, a 3-3b unit pressure control area and a 3-4b unit pressure control area, and the 4 th row is respectively a 4-1b unit pressure control area, a 4-2b unit pressure control area, a 4-3b unit pressure control area and a 4-4b unit pressure control area; four 'spring-pressure columns' are uniformly distributed in the lower die bearing plate area (4), a corresponding pressure sensor is arranged in the center of the lower die bearing plate area, and the pressure sensor penetrates through the bearing plate area and is connected to the heating area.

4. The self-calibrating composite molding apparatus of claim 1, wherein: the upper die heating area (2) is positioned below the upper die bearing plate area (1), and is hierarchically divided in the upper and lower directions, but still has an integral structure; the upper die heating area (2) is provided with a heating channel penetrating in the length direction.

5. The self-calibrating composite molding apparatus of claim 1, wherein: the lower die heating area (3) is positioned above the lower die bearing plate area (4), and is divided in layers in the upper and lower directions, but still has an integral structure; the lower die heating area (3) is provided with a heating channel penetrating in the length direction.