CN210132684U

CN210132684U - Forming die of resin-based composite material antenna housing

Info

Publication number: CN210132684U
Application number: CN201921009947.3U
Authority: CN
Inventors: 吴明泰; 王仁鹏; 易洪林; 刘川宇; 赵晓东; 林静; 朱芸霄
Original assignee: LINGBAYI ELECTRONIC GROUP SICHUAN TIANYUAN MACHINERY CO Ltd
Current assignee: LINGBAYI ELECTRONIC GROUP SICHUAN TIANYUAN MACHINERY CO Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-03-10
Anticipated expiration: 2029-07-02

Abstract

The application relates to a forming die of a resin-based composite material antenna housing, which comprises a male die, a female die, a bottom plate and a demoulding ring; the shape and the size of an inner circular edge opening of the demoulding ring are matched with those of an outer circular edge opening at the lower end of the male die; the lower end of the female die is provided with a positioning ring piece, the upper end surface of the demoulding ring is provided with an annular groove seat matched with the positioning ring piece in shape and size, and the female die can be clamped into the annular groove seat through the positioning ring piece; the positioning ring piece is provided with a first demoulding screw matched with the first demoulding screw hole, the bottom plate is provided with a second demoulding screw matched with the second demoulding screw hole, the inner circular edge opening is a stepped hole, the stepped hole comprises an upper hole opening and a lower hole opening, and the upper hole opening is of a horn mouth structure which is small in size and large in size.

Description

Forming die of resin-based composite material antenna housing

Technical Field

The utility model relates to a forming die of antenna house, especially a forming die of resin base combined material antenna house.

Background

In the prior art, a single mold (a female mold or a male mold) is generally adopted for manufacturing the radome, and the radome is pressurized by matching with a vacuum bag and cured and formed by an oven. The mold of the process is simple in structure and low in cost, but wrinkles appear on the surface of one side of the vacuum bag, the surface quality is affected, and the subsequent clamping and repairing work is time-consuming and labor-consuming.

In order to obtain the radome with high quality of the inner and outer surfaces, a compression molding process of a female die and a male die is generally adopted in the industry. Adopt compression molding technology processing drum pot bottom formula antenna house, traditional forming die adopts following structure: comprises a male die, a female die, a bottom plate and a demoulding ring; the male die and the bottom plate, the female die and the demoulding ring, and the demoulding ring and the bottom plate are connected and fixed with each other in pairs through screws; the inner circle edge opening of the demoulding ring is matched with the outer circle edge opening at the lower end of the male die in shape and size, the demoulding device also comprises a demoulding screw matched with the demoulding ring, and demoulding can be realized by adjusting the demoulding screw.

By adopting the existing forming die, after the product is cured and formed, the inside and the outside of the product are simultaneously attached to the female die and the male die. The demolding step is as follows: the first step is as follows: separating the female die, namely lifting the female die upwards by rotating a demoulding screw on the female die to promote the female die to be separated from the demoulding ring, and simultaneously realizing the separation of the female die and a product, wherein the product is kept attached to the male die; the second step is that: and separating the male die, and completing the separation of the male die by rotating the demoulding screw on the bottom plate. The disadvantages of the forming die are: in the process of separating the female die in the first step, along with the separation of the female die, the product is often brought away from the male die by the attachment of the female die due to the large adhesive force between the product and the female die, and the separation from the female die is not realized. In this case, the subsequent treatment is difficult, and improper treatment often results in product rejection. By adopting the forming die, the product yield is about 65% due to demoulding and clamping stagnation, and the production cost is high. At present, in the production of the cylindrical pot-bottom type antenna housing, a forming die capable of smoothly realizing demoulding is urgently needed.

Disclosure of Invention

The to-be-solved problem of the utility model is to provide a forming die of resin base combined material antenna house.

The utility model adopts the following technical scheme: comprises a male die, a female die, a bottom plate and a demoulding ring; the male die and the bottom plate are fixedly connected through a first screw, the female die and the demoulding ring are fixedly connected through a second screw, and the bottom plate and the demoulding ring are fixedly connected through a third screw; the shape and the size of an inner circular edge opening of the demoulding ring are matched with those of an outer circular edge opening at the lower end of the male die; the lower end of the female die is provided with a positioning ring piece, the upper end surface of the demoulding ring is provided with an annular groove seat matched with the positioning ring piece in shape and size, and the female die can be clamped into the annular groove seat through the positioning ring piece; the last first drawing of patterns screw hole that is equipped with of holding ring and matches, be equipped with second drawing of patterns screw hole and the second drawing of patterns screw that matches on the bottom plate, interior round edge mouth is the shoulder hole, the shoulder hole includes drill way and lower drill way, it is big horn mouth structure from top to bottom to go up the drill way.

The principle is as follows: the utility model discloses the device is round limit mouth design for the shoulder hole structure in with, and the last drill way of shoulder hole is big end down's horn mouth structure. By adopting the structure, the lower end edge opening of the antenna housing product is arranged to be parallel and level with the bottom surface of the positioning ring piece, when the antenna housing product is pasted by the resin-based composite material, the convex die, the bottom plate and the demoulding ring are assembled at first, an annular cavity is formed between the horn mouth structures of the convex die and the demoulding ring, when the antenna housing product is pasted on the convex die by a conventional method to the lower end edge opening, the annular cavity is filled by the resin-based composite material, and the concave die is pressed by the conventional method for heating, curing and forming. The inside and outside of the molded antenna cover product are simultaneously attached to the female die and the male die, and the resin-based composite material in the annular cavity forms a horn mouth reinforcing edge (the structure is used as the process allowance for later scribing, cutting and removing). The bellmouth reinforcing edge can play a special function of facilitating demoulding.

The demoulding process adopting the device of the utility model has the following steps: the first step is as follows: the female die is separated, the female die is lifted by rotating the first demolding screw on the first demolding screw hole of the female die, and due to the clamping effect of the horn mouth reinforcing edge, in the separation process of the female die and the demolding ring, the radome product is always attached to the male die and cannot be adsorbed and carried out by the female die, so that the female die is smoothly separated; the second step is that: separating the male die: the lower port of the radome product blank is provided with a horn mouth reinforcing edge, the stepped hole platform edge of the demoulding ring supports the lower end surface of the horn mouth reinforcing edge, and the demoulding ring is moved upwards to carry the radome product to be smoothly separated from the male die.

In one improvement, the flare configuration has a taper α of 4 ° to 20 °.

In another refinement, the flare configuration has a taper angle α of 10 °.

The utility model has the advantages of as follows:

1. simple structure, drawing of patterns convenient operation is swift. The utility model discloses the device is designed the interior round edge mouth of drawing of patterns circle for the shoulder hole structure, and the last drill way of shoulder hole is big end down's horn mouth structure. By adopting the forming die with the structure, the lower port of the manufactured radome product blank is provided with a horn mouth reinforcing edge. When the female die is separated, the horn mouth reinforcing edge has a clamping effect, and the female die is prevented from being separated from an antenna housing product when being separated. When the male die is separated, the lower end face of the horn mouth reinforcing edge is supported by the table edge of the stepped hole, and the demoulding ring moves upwards to carry the antenna housing product to be integrally and smoothly separated from the male die.

2. The stress part of the demolding process is reasonable in design, and the main body part of the radome product is protected. During the drawing of patterns operation, the bellmouth that is the process allowance strengthens the limit and is the atress position of drawing of patterns operation, and its intensity is better, and difficult damage is favorable to the protection of antenna house product main part.

3. The product yield is improved. Adopt the utility model discloses the antenna house product of preparation, the drawing of patterns operation is smooth and easy, and antenna house product jamming must the product damage that the after treatment leads to in the die when having avoided the drawing of patterns, through the practical application operation test, product yield is more than 98%.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic top view of the structure of fig. 1 (first knockout screw not shown).

Fig. 3 is a bottom view of the structure of fig. 1 (second knockout screw not shown).

Fig. 4 is a schematic structural view of a mold release ring according to an embodiment of the present invention.

FIG. 5 is a schematic view of the cross-sectional structure of R-R of FIG. 4.

Fig. 6 is a partially enlarged schematic view of fig. 5.

Fig. 7 is a schematic view of a partial structure of the radome product manufactured by the present invention (showing a horn mouth reinforcing edge).

Fig. 8 is a three-dimensional axis view of the assembly structure of the present invention (the first knockout screw is not shown).

In the figure: the mold comprises a male mold 1, a female mold 2, a bottom plate 3, a demolding ring 4, a first screw 5, a second screw 6, an inner circular edge opening 7, an outer circular edge opening 8, a positioning ring piece 9, an annular groove seat 10, a first demolding screw hole 11, a third screw 12, a second demolding screw hole 13, a horn mouth reinforcing edge 14, an upper orifice 15, a lower orifice 16 and an antenna housing product 17.

Detailed Description

As shown in fig. 1 to 8, an embodiment of the present invention includes a male mold 1, a female mold 2, a bottom plate 3, and a mold release ring 4; the male die 1 and the bottom plate 2 are fixedly connected through a first screw 5, the female die 2 and the demoulding ring 4 are fixedly connected through a second screw 6, and the bottom plate 3 and the demoulding ring 4 are fixedly connected through a third screw 12; the shape and the size of an inner circular edge opening 7 of the demoulding ring 4 are matched with the shape and the size of an outer circular edge opening 8 at the lower end of the male die 1; the lower end of the female die 2 is provided with a positioning ring piece 9, the upper end surface of the demoulding ring 4 is provided with an annular groove seat 10 matched with the positioning ring piece 9 in shape and size, and the female die 2 can be clamped into the annular groove seat 10 through the positioning ring piece 9; a first demoulding screw matched with the first demoulding screw hole 11 is arranged on the positioning ring piece 9, and a second demoulding screw matched with the second demoulding screw hole 13 is arranged on the bottom plate 3; the inner circular edge opening 7 is a stepped hole, the stepped hole comprises an upper orifice 15 and a lower orifice 16, and the upper orifice 15 is of a horn-shaped structure with a small upper part and a large lower part.

The principle is as follows: the utility model discloses the device is with interior round edge mouth 7 design for the shoulder hole structure, and the last drill way 15 of shoulder hole is big end down's horn mouth structure. By adopting the structure, the lower end edge opening of the antenna housing product 17 is arranged to be parallel and level with the bottom surface of the positioning ring piece 9, when the antenna housing product 17 is pasted by resin matrix composite materials, the convex die 1, the bottom plate 3 and the demoulding ring 4 are assembled at first, an annular cavity is formed between the horn mouth structures of the convex die 1 and the demoulding ring 4, when the antenna housing product 17 is pasted on the convex die 1 to the lower end edge opening by a conventional method, the annular cavity is filled by the resin matrix composite materials, and the concave die 2 is pressed into the convex die by the conventional method for heating, curing and forming. After molding, the antenna cover product 17 is attached to the female die 2 and the male die 1 inside and outside at the same time, and the resin-based composite material in the annular cavity forms a bell-mouth reinforcing edge 14 (the structure is used as the technological margin for later scribing, cutting and removing). The flare-out reinforcement 14 may serve a special function of facilitating demolding.

The demoulding process adopting the device of the utility model has the following steps: the first step is as follows: separating the female die 2, lifting the female die 2 by rotating a first demoulding screw on a first demoulding screw hole 11 of the female die 2, wherein due to the clamping effect of the horn mouth reinforcing edge 14, in the separation process of the female die 2 and the demoulding ring 4, the radome product 17 is always attached to the male die 1 and cannot be adsorbed and carried out by the female die 2, so that the female die 2 is smoothly separated; the second step is that: separating the male die 1: through the second drawing of patterns screw on the second drawing of patterns screw hole 13 of rotating bottom plate 3, push up drawing of patterns circle 4, because the lower port of radome body product 17 blank has bellmouth and strengthens limit 14, the lower terminal surface of bellmouth and strengthen limit 14 is held promptly to the ladder hole platform edge of drawing of patterns circle 4, drawing of patterns circle 4 moves up and carries radome body product 17 to separate from terrace die 1 smoothly promptly.

In one improvement, the flare configuration has a taper α of 4 ° to 20 °.

In another refinement, the flare configuration has a taper angle α of 10 °.

The utility model discloses not being restricted to the concrete structure of above-mentioned embodiment, the equivalent transform of other homogeneous structures all falls into within the protection scope of the utility model.

Claims

1. A forming die of a resin-based composite material antenna housing comprises a male die, a female die, a bottom plate and a demoulding ring; the male die and the bottom plate are fixedly connected through a first screw, the female die and the demoulding ring are fixedly connected through a second screw, and the bottom plate and the demoulding ring are fixedly connected through a third screw; the shape and the size of an inner circular edge opening of the demoulding ring are matched with those of an outer circular edge opening at the lower end of the male die; the lower end of the female die is provided with a positioning ring piece, the upper end surface of the demoulding ring is provided with an annular groove seat matched with the positioning ring piece in shape and size, and the female die can be clamped into the annular groove seat through the positioning ring piece; the last first drawing of patterns screw that is equipped with first drawing of patterns screw hole and matches of holding ring, be equipped with second drawing of patterns screw hole and the second drawing of patterns screw that matches on the bottom plate, its characterized in that: the inner circular edge opening is a stepped hole, the stepped hole comprises an upper orifice and a lower orifice, and the upper orifice is of a horn mouth structure with a small upper part and a large lower part.

2. The mold for molding the resin-based composite material radome of claim 1, wherein the taper α of the flare structure is 4 ° to 20 °.

3. The mold for molding the resin-based composite material radome of claim 2, wherein the taper α of the flare structure is 10 °.