Part auxiliary demolding device for epoxy glass fiber reinforced plastic female die forming

Abstract

The utility model belongs to the field of airplane composite material component manufacturing, and relates to a part auxiliary demolding device for epoxy glass fiber reinforced plastic female die forming. The utility model provides an auxiliary demolding device. The auxiliary demolding device comprises a vacuum pipe nozzle, a five-way joint, a stop valve, a vacuum hose and an air collecting nozzle, the middle of a five-way connector is connected with a vacuum pipe nozzle, the vacuum pipe nozzle is connected with a compressed air port through an existing vacuum hose, the tail end of the vacuum hose is connected with an air collecting nozzle, the air collecting nozzle is placed in a crack between a part allowance area and a tool, a stop valve is opened after the position is fixed, and compressed air flows in a tiny gap between a product and the tool after passing through the air collecting nozzle. And in a non-working state, the stop valve is closed, and the vacuum hose connected with the compressed air port in the middle of the five-way joint is detached. When a wind beam enters the narrow air channel from the wider air channel, the wind speed is increased, the wind power is more concentrated, the narrow wind beam converted by the wind collecting nozzle can more favorably flow in a small gap between a product and a tool, and the purposes of assisting in demolding, saving time and labor and protecting the product are achieved.

Description

Technical Field

[0001] The utility model belongs to the field of manufacturing aircraft composite components, and relates to a part auxiliary demoulding device for epoxy fiberglass concave die forming. Background Technique

[0002] At present, the demoulding method for parts formed by epoxy fiberglass concave die is as follows: First step, use a self-made high-speed steel knife to pry each diagonal of the part flange, and then pry along the perimeter; Second step, use a flat-head screwdriver to pry from the diagonal direction, and then pry along the perimeter. If there is no obvious separation between the surplus part of the blank and the surface of the die, this step needs to be repeated again; Third step, use a metal plate with a thickness of about 10 mm to pry from the diagonal direction, and then pry along the perimeter until successful demoulding. It takes at least 30 minutes for a single person to demould using this traditional method, and at least 15 - 20 minutes for three people to cooperate. It is both time-consuming and laborious. This demoulding method often causes damage to the blank, cracks, deformation, etc. at the prying positions, wear of the tooling, and in severe cases, even scrapping of the product. Content of the Utility Model

[0003] The utility model overcomes the deficiencies in the existing demoulding process and provides an auxiliary demoulding device that is convenient to use, time-saving and labor-saving.

[0004] Technical Solution

[0005] A part auxiliary demoulding device for epoxy fiberglass concave die forming includes a nozzle 1, a five-way joint 2, a hose 4, and an air collecting nozzle 5; the nozzle 1 is connected to the five-way joint 2, and the remaining four-way heads on the five-way joint 2 are respectively connected to the hose 4, and the hose 4 is connected to the air collecting nozzle 5.

[0006] During operation, the compressed air pressure through the air nozzle 5 is 0.5 - 0.6 MPa.

[0007] It further includes a stop valve 3, and the stop valve 3 is arranged on the hose 4.

[0008] Furthermore, the five-way joint 2 is made of metal material.

[0009] The diameter of the middle port of the five-way joint 2 matches the size of the nozzle 1.

[0010] The width of the air collecting nozzle 5 matches the outer shape size of the part.

[0011] The nozzle 1 is a vacuum nozzle 1.

[0012] The hose 4 is a vacuum hose 4.

[0013] Technical Effect

[0014] The utility model provides an auxiliary demoulding device. The middle part of the five-way joint is connected to a vacuum nozzle, and the vacuum nozzle is connected to a compressed air port through an existing vacuum hose. The end of the vacuum hose is connected to an air collecting nozzle. When the air beam enters the narrow air duct from the wider air duct, the wind speed will increase and the wind force will be more concentrated. The narrow air beam converted by the air collecting nozzle can more effectively flow in the small gap between the product and the tooling. Figure 6 , which replaces the method of prying to create a gap between the product and the tooling, thereby achieving the purpose of saving time and effort in auxiliary demoulding and protecting the product and the tooling. Brief Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the auxiliary demoulding device;

[0016] Figure 2 is a schematic diagram of the five-way joint;

[0017] Figure 3 is a schematic diagram of the stop valve;

[0018] Figure 4 is a schematic diagram of the air collecting nozzle;

[0019] Figure 5 is a schematic diagram of the use of the auxiliary demoulding device;

[0020] Figure 6 is a schematic diagram of gas flow.

[0021] Wherein: nozzle 1, five-way joint 2, stop valve 3, hose 4, air collecting nozzle 5. Specific Embodiments

[0022] A detailed description of an auxiliary demoulding device of the utility model is given in conjunction with the accompanying drawings:

[0023] Embodiment 1

[0024] A part auxiliary demoulding device for the molding of an epoxy fiberglass concave die includes a nozzle 1, a five-way joint 2, a hose 4, and an air collecting nozzle 5; the nozzle 1 is connected to the five-way joint 2, and the remaining four-way heads of the five-way joint 2 are respectively connected to the hose 4, and the hose 4 is connected to the air collecting nozzle 5;

[0025] It further includes a stop valve 3, and the stop valve 3 is arranged on the hose 4; the stop valve is used to control the opening and closing states of this passage.

[0026] Furthermore, the five-way joint 2 is made of a metal material; considering the influence of the compressed air flow on the strength of the joint. In order to ensure the joint strength, it is more appropriate to select a metal with high hardness.

[0027] The diameter of the middle port of the five-way joint 2 matches the size of the nozzle 1; a common size is selected, which has interchangeability.

[0028] The width of the air outlet of the air collecting nozzle 5 matches the outer dimension of the part; the air outlet is narrower and longer, the wind speed is increased, the wind force is more concentrated, and the air outlet fits more closely to the edge of the part, thereby improving the demolding effect.

[0029] During operation, the compressed air pressure passing through the air nozzle 5 is 0.5 - 0.6 MPa.

[0030] The nozzle 1 is a vacuum nozzle 1, and the vacuum nozzle 1 is made of a metal material, which can meet the strength requirements at the connection.

[0031] The hose 4 is a vacuum hose 4, and the vacuum hose 4 is made of a composite metal sandwich, which is more durable than an ordinary hose, is not easily air-leaked, and has an extended service life.

[0032] Embodiment 2

[0033] The present utility model provides a demolding auxiliary device, which includes a nozzle 1, a five-way joint 2, a hose 4, and an air collecting nozzle 5.

[0034] In this demolding device, the nozzle 1 is connected to the compressed air port through a vacuum hose; the five-way joint 2 is made of a metal part, and the diameter of the middle port is the size matching the vacuum nozzle actually used in production; the four stop valves 3a - 3d are made of metal parts, and the stop valves 3a - 3d are connected to the four ports of the five-way joint 2 by means of threaded connection. The other end of the stop valves 3a - 3d is in a form matching the vacuum short tube interface. During operation, the stop valves are in an open state. When not in operation or when this passage is not needed, the stop valves are in a closed state; the hoses 4a - 4d are selected with appropriate lengths according to actual production needs; the air collecting nozzles 5a - 5d are made of metal parts and are connected to the ends of the hoses 4a - 4d.

[0035] During operation, connect the device, then place the air collecting nozzle in the gap between the part allowance area and the tooling. After fixing the position, open the stop valve to allow the compressed air to flow through the air collecting nozzle and then flow in the tiny gap between the product and the tooling. When not in operation, close the stop valve, and then remove the vacuum hose connecting the middle of the five-way joint to the compressed air port.

Claims

1. A part auxiliary demoulding device for the forming of an epoxy fiberglass concave die, characterized in that, It includes a nozzle (1), a five-way joint (2), a hose (4), and an air collecting nozzle (5); the nozzle (1) is connected to the five-way joint (2), and the remaining four-way heads on the five-way joint (2) are respectively connected to the hose (4), and the hose (4) is connected to the air collecting nozzle (5).

2. The part auxiliary demoulding device for epoxy fiberglass concave die forming according to claim 1, characterized in that, During operation, the compressed air pressure passing through the air nozzle (5) is 0.5 - 0.6 MPa.

3. The part auxiliary demoulding device for the epoxy fiberglass concave mould forming according to claim 1, characterized in that, It further includes a stop valve (3), and the stop valve (3) is arranged on the hose (4).

4. The part auxiliary demoulding device for the epoxy fiberglass female die forming according to claim 1, characterized in that, The five-way joint (2) is made of a metal material.

5. The auxiliary demolding device for parts in the epoxy fiberglass female mold forming according to claim 1, wherein, The diameter of the middle port of the five-way joint (2) is matched with the size of the nozzle (1).

6. The part auxiliary demoulding device for epoxy fiberglass female die forming according to claim 1, characterized in that The width of the air collecting nozzle (5) is mutually matched with the external dimension of the part.

7. An auxiliary demoulding device for parts in the formation of an epoxy fiberglass female die according to claim 1, characterized in that, The nozzle (1) is a vacuum nozzle (1), and the hose (4) is a vacuum hose (4).

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