Demolding mechanism for injection molding product

Abstract

The utility model discloses a demolding mechanism for an injection molding product. The demolding mechanism comprises a mold base and a top cover, a bottom plate is arranged below the die holder; a lower die is arranged in the die holder, and an upper die is arranged below the top cover; an auxiliary demolding mechanism is arranged on the bottom plate and comprises a stand column, a mounting base is arranged on the stand column, an electric push rod is arranged on the side, away from the mold base, of the mounting base, the output end of the electric push rod extends out of the mounting base and is provided with a threaded head, the end, away from the electric push rod, of the threaded head is in threaded connection with an ejector block, and a protective cover is arranged below the ejector block. A high-pressure nozzle is arranged at the upper end in the protective cover and connected with a guide pipe, and the guide pipe extends out of the protective cover. The mold release agent spraying device can automatically spray a mold release agent, the mold release agent forms an interface coating between a mold and a product during subsequent injection molding, friction and connection strength are reduced, and therefore a finished product is convenient to demold, and the product is not damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding process technical field, specifically point to a kind of demolding mechanism for injection molding product. BACKGROUND

[0002] Injection molding is a manufacturing process that involves using a machine to inject plastic material into a mold, then heating the mold until the plastic solidifies, thereby forming a finished product. In the injection molding process, the mold is first closed, the raw material is injected into the mold cavity, then pressure is continuously applied, the melt is compacted, the plastic is cooled and solidified in the mold, and finally the mold is opened, and the molded product can be taken out.

[0003] In the process of demolding and taking out the molded product, due to the pressure solidification, it is inconvenient to demold the product. To assist in demolding, the prior art usually uses a ejector pin or other pressure tool to eject the finished product, but this method can cause indentation or deformation on the surface of the finished product, affecting the quality of the finished product, so an auxiliary demolding mechanism that does not damage the product itself is needed. SUMMARY

[0004] The utility model solves the above-mentioned technical problem that using an ejector pin or other pressure tool to eject the finished product can cause indentation or deformation on the surface of the finished product, affecting the quality of the finished product, and provides a demolding mechanism for injection molding product.

[0005] To solve the above technical problems, the utility model provides a technical scheme: a demolding mechanism for injection molding product, comprising a mold base and a top cover; the bottom of the mold base is provided with a bottom plate; the mold base is provided with a lower mold; the bottom of the top cover is provided with an upper mold; the middle of the top cover is provided with a through injection hole one; the middle of the upper mold is provided with an injection hole two corresponding to the injection hole one;

[0006] The bottom plate is provided with an auxiliary demolding mechanism, the auxiliary demolding mechanism comprises a vertical column, the vertical column is provided with a mounting seat, the side of the mounting seat away from the mold base is provided with an electric push rod, the output end of the electric push rod extending out of the mounting seat is provided with a threaded head, the end of the threaded head away from the electric push rod is threadedly connected with a top block, and the bottom of the top block is provided with a protective cover; the inner upper end of the protective cover is provided with a high-pressure nozzle, the high-pressure nozzle is connected with a conduit, and the conduit extends out of the protective cover.

[0007] Further, the mold base and the top cover are both provided with assembly holes, and the opposite assembly holes are connected by bolts.

[0008] Further, the top surface of the mold base is provided with a rectangular sealing element in the circumferential direction, and the bottom surface of the top cover is provided with a sealing groove capable of accommodating the sealing element in the circumferential direction.

[0009] Further, one side of the top block is provided with a threaded hole capable of being threadedly connected with the threaded head.

[0010] Further, the protective cover is higher than the mold base.

[0011] Further, the front surface of the mold base is provided with a control panel.

[0012] The utility model has the advantages that compared with the prior art, the utility model has the advantages that:

[0013] Before injection molding processing, the electric push rod pushes the top block, the protective cover and the high-pressure nozzle to the upper side of the lower mold, the conduit is communicated with the container for placing the mold release agent outside, and the inside of the lower mold can be sprayed with the mold release agent; similarly, the top block, the protective cover and the high-pressure nozzle are rotated upward, and the inside of the upper mold can be sprayed with the mold release agent; when injection molding is subsequently performed, the mold release agent forms an interface coating between the mold and the product, reduces friction and connection strength, so that the finished product is easy to demold; the auxiliary demolding mechanism can improve the demolding efficiency without damaging the product itself, and the working efficiency is improved compared with manual brushing of the mold release agent. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0016] Figure 3 It is a longitudinal section schematic diagram of the mold base of the utility model.

[0017] Figure 4 It is a schematic diagram of the bottom surface structure of the top cover of the utility model.

[0018] Figure 5 It is a schematic diagram of the auxiliary demolding mechanism of the utility model.

[0019] As shown in the figure: 1, mold base, 2, top cover, 3, bottom plate, 4, assembly hole, 5, lower mold, 6, upper mold, 7, injection hole one, 8, injection hole two, 9, sealing element, 10, sealing groove, 11, stand column, 12, mounting seat, 13, electric push rod, 14, threaded head, 15, top block, 16, protective cover, 17, conduit, 18, control panel. DETAILED DESCRIPTION

[0020] The utility model will be further described in detail in combination with the drawings.

[0021] Example one, in combination with the drawings Figure 1 , 2 , a demolding mechanism for injection molding products, comprising a mold base 1 and a top cover 2; the mold base 1 and the top cover 2 are both provided with assembly holes 4, and the opposite assembly holes 4 are connected through bolts; the mold base 1 and the top cover 2 are connected closely, the structural strength is high, and the pressure during injection molding is facilitated.

[0022] Combining with the drawings Figure 1 , 2 , 4, the upper surface of the mold base 1 is provided with a rectangular sealing element 9 in the circumferential direction, and the lower surface of the top cover 2 is provided with a sealing groove 10 capable of accommodating the sealing element 9, which can reduce the gap between the mold base 1 and the top cover 2, improve the sealing performance, and avoid heat loss during injection molding.

[0023] Combining with the drawings Figures 1-4 , the lower surface of the mold base 1 is provided with a bottom plate 3; the mold base 1 is provided with a lower mold 5, the lower surface of the top cover 2 is provided with an upper mold 6, the middle end of the top cover 2 is provided with a through injection hole one 7, and the middle end of the upper mold 6 is provided with an injection hole two 8 corresponding to the injection hole one 7; injection is carried out through the corresponding injection hole one 7 and injection hole two 8.

[0024] Combining with the drawings Figures 1-5 , the bottom plate 3 is provided with an auxiliary demolding mechanism, which includes a stand column 11, the stand column 11 is provided with a mounting seat 12, and the side of the mounting seat 12 away from the mold base 1 is provided with an electric push rod 13; the mounting seat 12 is used to support the electric push rod 13;

[0025] The output end of the electric push rod 13 extends out of the mounting seat 12 and is provided with a threaded head 14, the end of the threaded head 14 away from the electric push rod 13 is threadedly connected with a top block 15, one side of the top block 15 is provided with a threaded hole capable of being threadedly connected with the threaded head 14, and the threaded head 14 is arranged so that the top block 15 can rotate relative to the electric push rod 13, thereby being capable of spraying the demolding agent to the upper mold 6;

[0026] The lower surface of the top block 15 is provided with a protective cover 16, the protective cover 16 is higher than the mold base 1, so that the mold base 1 does not affect the forward and backward movement of the protective cover 16; the inner upper end of the protective cover 16 is provided with a high-pressure spray head, the high-pressure spray head is connected with a conduit 17, the conduit 17 extends out of the protective cover 16 and is in communication with an external container for storing the demolding agent.

[0027] Combining with the drawings Figure 1 , 2 , the front surface of the mold base 1 is provided with a control panel 18, which is convenient for electrically controlling the operation of the electric push rod 13, the high-pressure spray head and other components.

[0028] The utility model discloses a working principle: before injection moulding processing, electric push rod 13 pushes and sends top block 15, protective cover 16 and high pressure shower head to below mould 5 top, and the container intercommunication for placing the demoulding agent of outside, can spray the demoulding agent to below mould 5 inside, and the same reason, rotates top block 15, protective cover 16 and high pressure shower head to upwards, can spray the demoulding agent to above mould 6 inside, and after spraying, reverse movement retracts, avoid the installation of above mould 6 influence, subsequent when injection moulding, the demoulding agent forms an interface coating between mould and product, reduces friction and connecting strength, thereby makes finished product convenient demoulding.

[0029] The above description of the utility model and its implementation mode is not restrictive, and the embodiment shown in the drawings is only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A demoulding mechanism for injection molded products, characterized in that: It comprises a mold base (1) and a top cover (2); a bottom plate (3) is provided below the mold base (1); a lower mold (5) is provided inside the mold base (1), an upper mold (6) is provided below the top cover (2), a first injection hole (7) passing through the middle end of the top cover (2), and a second injection hole (8) corresponding to the first injection hole (7) is provided at the middle end of the upper mold (6); An auxiliary demoulding mechanism is provided on the bottom plate (3), and the auxiliary demoulding mechanism comprises a column (11), a mounting seat (12) is provided on the column (11), an electric push rod (13) is provided on the side of the mounting seat (12) away from the mold base (1), an output end of the electric push rod (13) extends out of the mounting seat (12) and is provided with a threaded head (14), an end of the threaded head (14) away from the electric push rod (13) is threadedly connected to a top block (15), and a protective cover (16) is provided below the top block (15); a high-pressure nozzle is provided at the upper end of the protective cover (16), and the high-pressure nozzle is connected to a conduit (17), and the conduit (17) extends out of the protective cover (16).

2. The demoulding mechanism for injection molded products according to claim 1, characterized in that: The mold base (1) and the top cover (2) are both provided with assembly holes (4), and the opposite assembly holes (4) are connected by bolts.

3. The demoulding mechanism for injection molded products according to claim 1, characterized in that: A rectangular sealing member (9) is provided on the upper surface of the mold base (1) along the circumferential direction, and a sealing groove (10) capable of accommodating the sealing member (9) is provided on the lower surface of the top cover (2) along the circumferential direction.

4. The demoulding mechanism for injection molded products according to claim 1, wherein: One side of the top block (15) is provided with a threaded hole capable of being threadedly connected to the threaded head (14).

5. The demoulding mechanism for injection molded products according to claim 1, characterized in that: The protective cover (16) is higher than the mold base (1).

6. The demoulding mechanism for injection molded products according to claim 1, characterized in that: A control panel (18) is provided on the front of the mold base (1).

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