Forced demolding device for mold

Abstract

The utility model discloses a forced demoulding device for a mould, which comprises an upper compound plate, a fixed mould, a first insert, a second insert, a movable mould, a lower bottom plate and an ejection mechanism, the first insert is fixedly arranged at the lower part of the upper compound plate, the second insert is fixedly arranged at the upper part of the fixed mould, and the upper compound plate and the fixed mould are fixed by adopting a limiting screw; a first spring is arranged between the upper compound plate and the fixed mold, a material pushing plate is arranged below the fixed mold, the movable mold is arranged below the material pushing plate, square blocks are arranged on the two sides below the movable mold, the lower bottom plate is arranged below the square blocks, and the ejection mechanism is arranged on the lower bottom plate. Mechanisms such as a sliding block and a pitched roof are omitted to forcibly demold, so that the mold structure is optimized, the mold production cost is reduced, and the manufacturing period is shortened; the mechanism core-pulling time is shortened, and the production cost is reduced; the model of the injection molding machine is reduced, and the production cost is further reduced.

Description

Technical Field

[0001] The utility model belongs to the field of molds, and in particular relates to a device for forced demoulding of molds. Background Art

[0002] Products in the injection mold of the injection molding process, such as Figure 2 As shown in the figure, the position of the product circle is in an inverted state. At this time, forced demoulding will cause jamming and difficulty in demoulding. The conventional practice is to design sliders, inclined tops and other mechanisms in the mold to achieve demoulding. However, the provision of sliders, inclined tops and other mechanisms will lead to large mold size, complex structure, increased manufacturing costs and long production cycle. Therefore, it is necessary to improve the existing mold structure and propose a device for forced demoulding of the mold. Utility Model Content

[0003] In view of the above-mentioned problems, the utility model provides a device for forced demolding of the mold, thereby solving the technical problems such as large mold size, complex structure, increased manufacturing cost and long production cycle caused by setting sliders, inclined tops and other mechanisms for forced demolding in traditional processes.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A device for forced demoulding of a mold comprises an upper composite plate, a fixed mold, a first insert, a second insert, a movable mold, a lower bottom plate and an ejection mechanism, wherein the first insert is fixedly arranged at the lower part of the upper composite plate, the second insert is fixedly arranged at the upper part of the fixed mold, the upper composite plate and the fixed mold are fixed by limit screws, a first spring is arranged between the upper composite plate and the fixed mold, a push plate is arranged below the fixed mold, the movable mold is arranged below the push plate, blocks are arranged on both sides below the movable mold, the lower bottom plate is arranged below the blocks, and the ejection mechanism is arranged on the lower bottom plate.

[0006] As a further technical solution of the utility model, a raised portion is arranged below the first insert, and the raised portion passes through the second insert. The product to be demolded is located in the mold cavity of the fixed mold, below the raised portion of the first insert.

[0007] As a further technical solution of the utility model, the ejection mechanism includes an ejector plate, an ejector retractor plate and a reset rod. The ejector retractor plate is arranged on the lower bottom plate, and the ejector plate is arranged on the ejector retractor plate.

[0008] As a further technical solution of the utility model, the ejector plate and the ejector backing plate are fixed to the pusher plate with screws.

[0009] As a further technical solution of the utility model, the reset rod is arranged on the ejector plate, the upper part of the reset rod is connected to the movable mold, and a second spring is arranged on the outer side of the reset rod.

[0010] The technical solution of the utility model has the following beneficial effects because there is no need to set a slider, a tilting top or other mechanisms to force demoulding:

[0011] (1) Optimize mold structure, reduce mold production costs, and shorten manufacturing cycle;

[0012] (2) Shorten the core pulling time of the mechanism and reduce production costs;

[0013] (3) The size of the injection molding machine is reduced, reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall appearance of the device for forced demoulding of the mold of the utility model;

[0015] Figure 2 It is a strong de-picting diagram of the product of the utility model;

[0016] Figure 3 This is a compression state diagram of the utility model before mold opening;

[0017] Figure 4 This is a state diagram of the utility model after mold opening;

[0018] Figure 5 This is a diagram of the ejection state of the product of the utility model;

[0019] In the figure: 1. upper plate; 2. first spring; 3. first insert; 4. limit screw; 5. second insert; 6. product to be demoulded; 7. fixed mold; 8. push plate; 9. movable mold; 10. reset rod; 11. second spring; 12. ejector plate; 13. ejector plate; 14. lower base plate; 15. block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0021] like Figure 1-Figure 5As shown, a device for forced demoulding of a mold of the utility model comprises an upper composite plate 1, a fixed mold 7, a first insert 3, a second insert 5, a movable mold 9, a lower bottom plate 14 and an ejection mechanism, wherein the first insert 3 is fixedly arranged at the lower part of the upper composite plate 1, the second insert 5 is fixedly arranged at the upper part of the fixed mold 7, the upper composite plate 1 and the fixed mold 7 are fixed by a limit screw 4, a first spring 2 is arranged between the upper composite plate 1 and the fixed mold 7, a push plate 8 is arranged below the fixed mold 7, the movable mold 9 is arranged below the push plate 8, blocks 15 are arranged on both sides below the movable mold 9, the lower bottom plate 14 is arranged below the block 15, and the ejection mechanism is arranged on the lower bottom plate 14.

[0022] A raised portion is provided below the first insert 3 , and the raised portion passes through the second insert 5 . The product 6 to be demoulded is located in the mold cavity of the fixed mold 7 , and is located below the raised portion of the first insert 3 .

[0023] The ejection mechanism includes an ejector plate 12, an ejector retractor plate 13 and a reset rod 10. The ejector retractor plate 13 is arranged on the lower bottom plate 14, and the ejector plate 12 is arranged on the ejector retractor plate 13. The ejector plate 12 and the ejector retractor plate 13 are fixed to the ejector plate 8 by screws. The reset rod 10 is arranged on the ejector plate 12, and the upper part of the reset rod 10 is connected to the movable mold 9. A second spring 11 is arranged on the outer side of the reset rod 10 to realize ejection reset.

[0024] The forced demoulding device of the utility model is specifically used in the process of injection molding. Figure 3 As shown, the first spring 2 is in a compressed state. Figure 4 As shown, the fixed mold 7 opens with the first insert 3 under the action of the first spring 2, leaving the deformation amount of the product 6 to be demolded, and plastic deformation occurs. After the upper plate 1 contacts the limit screw 4, the product 6 to be demolded is forced to be demolded. The ejector plate 12 and the ejector plate 13 are fixed with screws and the push plate 8. The ejector plate 12 and the ejector plate 13 are ejected by the ejector rod of the injection molding machine. The product 6 to be demolded is automatically dropped.

[0025] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A device for forced demoulding of a mold, It is characterized in that The invention comprises an upper composite plate (1), a fixed die (7), a first insert (3), a second insert (5), a movable die (9), a lower base plate (14) and an ejection mechanism, wherein the first insert (3) is fixedly arranged at the lower part of the upper composite plate (1), the second insert (5) is fixedly arranged at the upper part of the fixed die (7), the upper composite plate (1) and the fixed die (7) are fixed by means of a limit screw (4), a first spring (2) is arranged between the upper composite plate (1) and the fixed die (7), a push plate (8) is arranged below the fixed die (7), the movable die (9) is arranged below the push plate (8), blocks (15) are arranged on both sides below the movable die (9), the lower base plate (14) is arranged below the blocks (15), and the ejection mechanism is arranged on the lower base plate (14).

2. A device for forced demoulding of a mold according to claim 1, It is characterized in that A raised portion is provided below the first insert (3), and the raised portion passes through the second insert (5). The product (6) to be demoulded is located in the mold cavity of the fixed mold (7) and below the raised portion of the first insert (3).

3. A device for forced demoulding of a mold according to claim 1, It is characterized in that The ejection mechanism comprises an ejector plate (12), an ejector retractor plate (13) and a reset rod (10); the ejector retractor plate (13) is arranged on a lower bottom plate (14), and the ejector plate (12) is arranged on the ejector retractor plate (13).

4. A device for forced demoulding of a mold according to claim 3, It is characterized in that The ejector plate (12) and the ejector backing plate (13) are fixed to the push plate (8) by screws.

5. A device for forced demoulding of a mold according to claim 3, It is characterized in that The reset rod (10) is arranged on the ejector plate (12), the upper part of the reset rod (10) is connected to the movable mold (9), and a second spring (11) is arranged on the outer side of the reset rod (10).

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