CN102738681A - Mould of low frequency point connector used for aerospace - Google Patents

Abstract

The invention belongs to the technical field of moulds, and provides a mould of a low frequency point connector used for aerospace. The mould comprises a fixed die seat plate (1), a fixed die plate (2), a movable die plate I (5), a movable die plate II (8), a movable die base plate (9), a movable die seat plate (13), a square iron (10) and an ejection mechanism, wherein the ejection mechanism comprises an ejection pin (25), a material pulling pin (26), a reset rod (27), a limit block (29), an ejection pin plate (15) and an ejection pin fixing plate (14); a sprue sleeve (30) communicated with a main flow channel of the mould is fixedly arranged on the upper part of the fixed die seat plate (1), and a plurality of sprues are communicated with the sprue sleeve; and the sprues are all communicated with a mould forming cavity. The mould disclosed by the invention solves the problem that the coaxiality of step holes in the low frequency point connector in the prior art is poor, and the quality of products is improved.

Description

Dies for Low Frequency Point Connectors for Aerospace

technical field

The invention belongs to the technical field of moulds, and mainly provides a mold for low-frequency point connectors used in aerospace. the

Background technique

As shown in Figure 5, Figure 6, and Figure 7, the upper and lower housings of the aerospace low-frequency point connector have multiple rows of small holes, and the diameters of the small holes on the upper and lower housings are different; The small holes are densely arranged, and the diameter of the holes is small. In addition, the small holes on the upper and lower shells are stepped holes with multiple steps. Therefore, when casting low-frequency point connectors for aerospace, it is necessary to fully ensure the accuracy of the stepped holes. Concentricity, in the prior art, the method of one-point pouring of the side gate is generally used for casting, but the coaxiality error of the step hole on the low-frequency point connector for aerospace produced by this casting method is relatively large, and the product cannot be achieved. precision requirements. the

Contents of the invention

In order to solve the above-mentioned technical problems, the object of the present invention is to propose a mold for aerospace low-frequency point connectors.

The present invention adopts following technical scheme for accomplishing the above object:

A mold for low-frequency point connectors used in aerospace, the mold is a multi-cavity structure; Die base plate, square iron and ejection mechanism; the fixed mold base plate and movable mold base plate are set up and down; Between the seat plate and the movable mold seat plate, wherein the fixed template is fixed on the fixed mold seat plate; the movable template I and the movable template II are located below the fixed template, and the movable template I and the movable template II set up and down; the movable mold backing plate is located under the movable template II, and the square iron is located under the movable mold backing plate; the square iron is two symmetrically arranged pieces, and the movable template II, the movable mold The mold backing plate and the square iron are fixed on the movable mold seat plate; a closed cavity is formed between the movable mold backing plate, two pieces of square iron and the movable mold seat plate; Mold insert; the fixed mold insert is embedded in the fixed template and has multiple molding cavities on the fixed mold insert; the movable mold insert is embedded in the movable template I and has multiple molding cavities on the movable mold insert ; The molding cavities on the fixed mold insert cooperate with the molding cavities on the movable mold insert to form multiple molding cavities, which can form multiple low-frequency point connectors at one time; and each of the fixed mold inserts Corresponding to each molding cavity, there are multiple rows of fixed-die inserts I and fixed-mold inserts II for forming small holes on the low-frequency point connector are fixed on the fixed-mold insert; The mold insert II is respectively provided with the movable mold insert I and the movable mold insert II on the movable template II; the ejection mechanism includes ejector pins, pull pins, reset levers, limit blocks, ejector plates and ejector pin fixing The thimble plate, the pull pin, and the reset rod are all fixed on the thimble plate, and the described thimble plate is fixed on the thimble fixed plate; the described thimble plate and the thimble fixed plate are located In the cavity formed by the iron and the movable mold base plate, and the thimble fixed plate is placed on the movable mold base plate, and the described limit block is fixedly connected to the top of the reset rod; the upper part of the fixed mold base plate is fixed There is a sprue sleeve communicated with the main channel of the mould, and a plurality of gates are arranged in communication with the sprue sleeve; the plurality of gates are all communicated with the molding cavity of the mould.

Guide pillars are fixed on the movable template II, and guide sleeves are provided on the fixed template and the movable template I. the

A mold for aerospace low-frequency point connectors proposed by the present invention adopts multiple gates for pouring, which solves the problem of poor coaxiality of the step holes on the low-frequency point connectors in the prior art, and improves the product quality. quality. the

Description of drawings

Fig. 1 is a plan view of the movable mold part of the present invention. the

FIG. 2 is a cross-sectional view along line A-A of FIG. 1 . the

Fig. 3 is a plan view of the fixed mold part of the present invention. the

Fig. 4 is a B-B sectional view of Fig. 3 . the

Figure 5 is a front view of the low frequency point connector. the

FIG. 6 is a C-C sectional view of FIG. 5 . the

FIG. 7 is a rear view of FIG. 5 . the

In the figure: 1. Fixed mold seat plate, 2. Fixed template, 3. Fixed mold insert, 4. Positioning pin, 5. Moving template Ⅰ, 6. Moving mold insert, 7. Screw Ⅰ, 8. Moving template Ⅱ , 9, moving mold backing plate, 10, square iron, 11, screw Ⅱ, 12, screw Ⅲ, 13, moving mold seat plate, 14, thimble fixed plate, 15, thimble plate, 16, moving mold inserting needle Ⅰ, 17 , limit screw, 18, screw Ⅴ, 19, fixed mold insert Ⅰ, 20, screw Ⅵ, 21, fixed mold insert Ⅱ, 22, guide sleeve, 23, guide post, 24, movable mold insert Ⅱ, 25 , thimble, 26, pulling needle, 27, reset rod, 28, screw VII, 29, limit block, 30, sprue sleeve, 31, limit plate. the

Detailed ways

The present invention is described in conjunction with accompanying drawing and specific embodiment:

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of mold of aerospace low-frequency point connector, described mold is a mold multi-cavity structure; Described mold comprises fixed mold seat plate 1, fixed mold Template 2, movable template I5, movable template II8, movable mold backing plate 9, movable mold seat plate 13, square iron 10 and ejection mechanism; said fixed mold seat plate 1 and movable mold seat plate 13 are set up and down; said The fixed formwork 2, movable formwork I5, movable formwork II8, movable formwork backing plate 9 and square iron 10 are located between the fixed formwork seat plate 1 and the movable formwork seat plate 13, wherein the fixed formwork plate 2 is fixed on the fixed formwork seat plate 1; the movable template I5 and the movable template II8 are located below the fixed template 2, the movable template I5 and the movable template II8 are set up and down; the movable template backing plate 9 is located under the movable template II8, and the The square iron 10 is located below the movable mold backing plate 9; the square iron 10 is two symmetrically arranged pieces, and the moving template II 8, the moving mold backing plate 9, and the square iron 10 are fixed on the moving mold seat plate 13 A closed cavity is formed between the movable mold backing plate 9, two square irons 10 and the movable mold seat plate 13; the fixed mold insert 3 is inlaid in the center of the fixed template 2; the fixed mold insert 3 is embedded in the fixed template 2 and has two molding cavities on the fixed mold insert 3; the movable mold insert 6 is embedded in the movable template I5 and has two molding cavities on the movable mold insert 6; The molding cavity on the fixed mold insert 3 cooperates with the molding cavity on the movable mold insert 6 to form two molding cavities, which can form two low-frequency point connectors at one time; Corresponding to each molding cavity, multiple rows of fixed-die inserts I19 and fixed-die inserts II21 for forming small holes on the low-frequency point connector are fixed on the fixed-die insert 3; corresponding to the above-mentioned fixed-die inserts I19, The fixed mold inserts II 21 are respectively provided with movable mold inserts I16 and movable mold inserts II24 on the movable template II8; Thimble plate 15 and thimble fixed plate 14; described thimble 25, pull pin 26, reset lever 27 are all fixed on the thimble plate 15, and described thimble plate 15 is fixed on the thimble fixed plate 14; Described thimble plate 15. The thimble fixed plate 14 is located in the cavity formed by the movable mold backing plate 9, two square irons 10 and the movable mold seat plate 13, and the thimble fixed plate 14 is placed on the movable mold seat plate 13, the described The limit block 29 is fixedly connected to the top of the reset rod 27; the upper part of the fixed mold seat plate 1 is fixed with a sprue sleeve 30 communicating with the main channel of the mould, and a plurality of gates are arranged in communication with the sprue sleeve. ; A plurality of gates are connected with the molding cavity of the mold.

As shown in Figure 4, a guide post 23 is fixed on the movable template II8, and a guide sleeve 22 is provided on the fixed template 2 and the movable template I5. play a guiding role. the

As shown in Figure 2, a limit plate 31 is provided to limit the stroke of the movable template I5 when the mold is opened, one end of the limit plate 31 is fixed on the fixed template 2, one end of the limit bolt is connected with the movable template I, and the other end The bolt cap is located in the strip-shaped limit hole of the limit plate; when the mold is opened, the movable template I5 moves relative to the fixed template 2, and when the limit bolt connected with the movable template I moves to the strip-shaped limit hole of the limit plate At the bottom, the movable template I5 is limited. the

As shown in Figure 2, the stop screw 17 that limits the travel of the stop template II8 when the mold is opened is provided, and the fixed template 2 has a through hole with a diameter greater than the diameter of the stop screw nut. Located in the through hole of the fixed template 2, the lower end of the limit screw passes through the through hole of the movable template I5 and is integrated with the movable template II8; the nut diameter of the limit screw 17 is larger than that of the movable template I5 through holes. the

The working process of the present invention is:

The first step: hoist the mold between the four guide pillars of the injection molding machine, align the positioning ring on the mold with the positioning hole of the injection molding machine, and then connect the fixed mold seat plate (the fixed mold part of the mold) to the fixed work of the injection molding machine through the pressure plate On the table; connect the movable mold seat plate (the movable mold part of the mold) to the mobile working table of the injection molding machine through the pressure plate;

The second step: mold adjustment, that is, adjust the opening and closing stroke of the injection molding machine to the range suitable for the total thickness of the mold, and press the mold tightly by the injection molding machine to ensure the smooth opening and closing of the mold;

Step 3: After the mold is closed, the injection molding machine pours the molten plastic into the mold cavity through multiple gates through the sprue sleeve, and then cools for 30 seconds to allow the plastic to fully solidify and form, and the mold is opened. When the mold is opened, the mold opening and closing system of the injection molding machine drives the movable mold part back; the movable mold part starts to separate from the fixed template and moves to a certain distance, and the movable template I5 is limited by the limit plate 31 and stops moving; at the same time, the top The ejector mechanism 25, pull needle 26, reset lever 27, thimble plate 15 and thimble fixed plate 14 stop moving under the action of the limit block 29; the movable template Ⅱ 8 continues to move, the movable mold insert Ⅰ 16, the movable mold insert Ⅱ 24 out of the product; the movable template Ⅱ8 moves to a certain distance, and under the action of the limit screw 17, the movable template Ⅱ8 stops moving; the ejector stick of the injection molding machine moves the thimble fixed plate 14 and the thimble plate 15, driving the pulling needle 26, The thimble 25 moves towards the fixed mold direction, so that the product and the material head are taken off from the movable mold insert 6, and a molding process is completed so far.

Claims (2)

1. A mold for a low-frequency point connector used in aerospace, the mold is a multi-cavity structure; the mold includes a fixed mold seat plate (1), a fixed mold plate (2), and a movable mold plate I (5) , movable formwork II (8), movable mold backing plate (9), movable mold seat plate (13), square iron (10) and ejection mechanism; said fixed mold seat plate (1), movable mold seat plate ( 13) Set up and down; the fixed formwork (2), movable formwork I (5), movable formwork II (8), movable formwork backing plate (9) and square iron (10) are located between the fixed formwork seat plate (1) and Between the movable mold base plates (13), the fixed template (2) is fixed on the fixed mold base plate (1); the movable template I (5), movable template II (8) are located on the fixed template ( 2), the movable template I (5) and movable template II (8) are set up and down; the movable template backing plate (9) is located under the movable template II (8), and the square iron ( 10) It is located below the movable mold backing plate (9); the square iron (10) is two symmetrically arranged pieces, the moving template II (8), the moving mold backing plate (9), the square iron (10 ) is fixed on the movable mold base plate (13); a closed cavity is formed between the movable mold base plate (9), two square irons (10) and the movable mold base plate (13); it is characterized in that : The fixed mold insert (3) is embedded in the fixed template (2) and has multiple molding cavities on the fixed mold insert (3); the movable mold insert (6) is embedded in the movable template I (5) and has There are multiple molding cavities on the movable mold insert (6); the molding cavities on the fixed mold insert (3) cooperate with the molding cavities on the movable mold insert (6) to form multiple The molding cavity can mold multiple low-frequency point connectors at one time; corresponding to each molding cavity on the fixed mold insert (3), multiple rows are fixed on the fixed mold insert (3) to form low-frequency point connectors The fixed mold inserts I (19) and fixed mold inserts II (21) of the upper small hole; corresponding to the fixed mold inserts I (19) and fixed mold inserts II (21) in the movable template II (8) The movable mold insert needle I (16) and the movable mold insert needle II (24) are arranged respectively; the ejector mechanism includes a thimble (25), a pull needle (26), a reset lever (27), a limit block (29), thimble plate (15) and thimble fixing plate (14); the thimble (25), pull needle (26), and reset lever (27) are all fixed on the thimble plate (15), and the The thimble plate (15) is fixed on the thimble fixed plate (14); the thimble plate (15) and the thimble fixed plate (14) are located on the movable mold backing plate (9), two square irons (10) and the movable mold In the cavity formed by the seat plate (13), the thimble fixing plate (14) is placed on the movable mold seat plate (13), and the limiting block (29) is fixedly connected to the reset rod (27). The top; the upper part of the fixed mold seat plate (1) is fixed with a sprue sleeve (30) connected with the main channel of the mould, and a plurality of gates are connected with the sprue sleeve; a plurality of the sprue The mouths are all connected with the molding cavity of the mold. 2. The mold for aerospace low-frequency point connector according to claim 1, characterized in that: a guide post (23) is fixed on the movable template II (8), and a guide post (23) is fixed on the fixed template (2), the movable template Template I (5) has a guide sleeve (22).

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