Ejection mechanism of pipe fitting mold

Abstract

The utility model discloses an ejection mechanism of a pipe fitting mould, the pipe fitting mould comprises a fixed mould and a movable mould matched below the fixed mould, the bottom of the fixed mould is provided with an inclined guide pillar, a lower cavity of the fixed mould is provided with a guide block, the movable mould is provided with a group of sliding block mould cores, the sliding block mould cores are fixed on corresponding sliding blocks, and the sliding blocks are fixed on the sliding block mould cores. A group of ejection mechanisms used for ejecting a product and a runner rod are embedded in an upper cavity of the movable mold, a sliding block starts to pull a core under the driving of an inclined guide column, and after the sliding block finishes core pulling, the ejection mechanisms eject the runner rod and the product to realize demolding of the product. The structure is simple, an ejector plate, an ejector compound plate and a mold foot do not need to be added, and therefore the thickness of the pipe fitting mold is small.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting moulds, in particular to an ejection mechanism of a pipe fitting mould. Background Art

[0002] At present, conventional ejection methods for pipe fitting molds are ejected by ejector pins, inclined ejectors, straight ejectors, etc. Although they can eject products, they have the following disadvantages: (1) The mold needs to be equipped with an ejector plate, an ejector plate, and a mold foot, which makes the mechanism complex and costly; 2) The mold needs to be equipped with an ejector plate, an ejector plate, and a mold foot, and some molds will exceed the maximum thickness of the mold and cannot be placed in the mold; 3) Mold opening and ejection cannot be performed simultaneously; 4) The mold manufacturing cycle is long.

[0003] To this end, the utility model provides an ejection mechanism of a pipe fitting mold with a simple structure. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide an ejection mechanism for a pipe fitting mold, so that product ejection and mold opening are performed synchronously, thereby shortening the product molding cycle.

[0005] The technical solution of the utility model is as follows:

[0006] The invention discloses an ejection mechanism for a pipe fitting mold, wherein the pipe fitting mold comprises a fixed mold and a movable mold matched below the fixed mold, wherein the bottom of the fixed mold is provided with an inclined guide column, the lower cavity of the fixed mold is provided with a guide block, the movable mold is provided with a group of slider cores, the slider cores are fixed to their corresponding sliders, and the upper cavity of the movable mold is embedded with a group of ejection mechanisms for ejecting products and runner rods. When the mold is closed, the ejection mechanism abuts against the guide block, and the slider starts to pull the core under the drive of the inclined guide column. After the slider completes the core pulling, the ejection mechanism ejects the runner rod and the product to realize the demoulding of the product.

[0007] Furthermore, each ejection mechanism comprises an ejection block, a spring and a movable block, the ejection block is provided with a spring inside, the ejection block is limited by the movable block, and the guide block abuts against the movable block.

[0008] Furthermore, the ejector block includes an ejector block body and an ejector block base arranged at the bottom of the ejector block body, the ejector block base and the ejector block body form a step surface, and a cavity is provided inside the ejector block base, wherein the spring is arranged in the cavity.

[0009] Furthermore, when the mold is closed, the spring is in a compressed state.

[0010] Furthermore, the movable block includes a movable block body, one side of which is provided with an inclined surface 1 cooperating with the step surface; the other side of the movable block body is provided with an inclined surface 2, and the movable block body is provided with an abutting straight surface 1 below the inclined surface 2.

[0011] Furthermore, it includes a support rod, and each ejection mechanism is provided with a support rod on the side, and the side of the support rod facing the movable block is provided with a second abutment surface matching with the first abutment surface, and the support rod is provided with a third inclined surface above the second abutment surface, and the third inclined surface is parallel to the second inclined surface.

[0012] Furthermore, in the mold closing state, the second abutting straight surface of the support rod abuts against the first abutting straight surface of the movable block, and the first inclined surface of the movable block abuts against the step surface of the ejection block.

[0013] Furthermore, the lower cavity and guide block of the fixed mold, the upper cavity of the movable mold and the slider core constitute a mold cavity of the product.

[0014] Furthermore, a cavity for installing a runner rod is provided at the top of the ejector block, and the runner rod passes through the cavity at the top of the ejector block.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1) With the technical solution of the utility model, a group of ejection mechanisms for ejecting products and runner rods are embedded in the upper mold cavity of the movable mold. The slider starts to pull the core under the drive of the inclined guide column. After the slider completes the core pulling, the ejection mechanism ejects the runner rod and the product to realize the demoulding of the product;

[0017] 2) The ejection mechanism of the utility model is operated synchronously with the mold opening, which shortens the product molding cycle, shortens the mold manufacturing cycle, and reduces the mold manufacturing cost;

[0018] 3) Compared with the existing ejection mechanism of the pipe fitting mold, the ejection mechanism of the utility model has a reasonable structural design and a simple structure, and does not need to add an ejector plate, an ejector plate, or a mold foot, thereby making the thickness of the pipe fitting mold thin. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the mold of the utility model;

[0020] Figure 2 The structure of the movable mold of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the fixed mold structure of the utility model Figure 1 ;

[0022] Figure 4 This is a schematic diagram of the fixed mold structure of the utility model Figure 2 ;

[0023] Figure 5 The structure of the movable mold of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 6 for Figure 5 Sectional view at AA;

[0025] Figure 7 This is a schematic diagram of the ejection mechanism of the utility model before ejection;

[0026] Figure 8 for Figure 7 Sectional view at the middle BB;

[0027] Fig. 9 This is a schematic diagram of the ejection mechanism of the utility model after ejection;

[0028] Fig.10 for Fig. 9 Cross-section at CC;

[0029] Fig.11 This is a schematic diagram of the ejection mechanism of the utility model in the mold closing state;

[0030] Fig.12 This is a schematic diagram of the ejection mechanism when the mold is opened;

[0031] Fig.13 This is a schematic diagram of the ejection mechanism when the mold is fully opened;

[0032] Fig.14 is a schematic diagram of the support rod structure;

[0033] Fig.15 It is a schematic diagram of the ejection block structure;

[0034] Fig.16 It is a schematic diagram of the activity block structure.

[0035] In the figure: 1. fixed mold; 2. guide block; 3. slider; 4. runner rod; 5. fixed mold insert; 6. product; 7. ejector block; 701. ejector block body; 702. ejector block base; 703. step surface; 8. spring; 9. movable block; 901. inclined surface one; 902. inclined surface two; 903. abutting straight surface one; 10. movable mold; 11. inclined guide column; 12. support rod; 1201. abutting straight surface two; 1202. inclined surface three; 13. slider core. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings, but the scope of protection of the present invention is not limited to the described scope.

[0037] like Figure 1-4As shown, an ejection mechanism of a pipe fitting mold, the pipe fitting mold includes a fixed mold 1 and a movable mold 10 matched below the fixed mold, the bottom of the fixed mold 1 is provided with an inclined guide column 11, the lower cavity of the fixed mold 1 is provided with a guide block 2, the movable mold 10 is provided with a group of slider cores 13, the slider cores 13 are fixed to their corresponding sliders 3, and a group of ejection mechanisms for ejecting products 6 and runner rods 4 are embedded in the upper cavity of the movable mold 10. When the mold is closed, the ejection mechanism is against the guide block 2. Furthermore, the ejection mechanism is embedded in the movable mold insert 5 in the movable mold 10, and the slider 3 starts to pull the core under the drive of the inclined guide column 11. After the slider 3 completes the core pulling, the ejection mechanism ejects the runner rod 4 and the product 6 to realize the demolding of the product.

[0038] Compared with the existing ejection mechanism of the pipe fitting mold, the ejection mechanism of the utility model has reasonable structural design and simple structure, and does not need to add an ejector plate, an ejector plate and a mold foot, thereby making the thickness of the pipe fitting mold thin.

[0039] Product ejection and mold opening are carried out simultaneously, which greatly shortens the product molding cycle.

[0040] The lower cavity of the fixed mold 1 and the guide block 2 , the upper cavity of the movable mold 2 and the slider core 12 constitute the model cavity of the product 6 .

[0041] like Fig.11 As shown, each ejection mechanism includes an ejection block 7 , a spring 8 and a movable block 9 . The ejection block 7 is provided with a spring 8 . The ejection block 7 is limited by the movable block 9 , and the guide block 2 abuts against the movable block 9 .

[0042] like Fig.15 As shown, the ejector block 7 includes an ejector block body 701 and an ejector block base 702 arranged at the bottom of the ejector block body 701, the ejector block base 702 and the ejector block body 701 form a step surface 703, and a cavity is provided inside the ejector block base 702, wherein the spring 8 is arranged in the cavity.

[0043] In the mold closing state, the spring 8 is in a compressed state.

[0044] like Fig.16 As shown, the movable block 9 includes a movable block body, one side of which is provided with an inclined surface 901 that cooperates with the step surface 703; the other side of the movable block body is provided with an inclined surface 902, and the movable block body is provided with a contact straight surface 903 below the inclined surface 902.

[0045] like Fig.14 As shown, the ejection mechanism also includes a support rod 12. The side of each ejection mechanism is provided with a support rod 12. The side of the support rod 12 facing the movable block 9 is provided with a second abutment straight surface 1201 that cooperates with the first abutment straight surface 903. The support rod 12 is provided with a third inclined surface 1202 above the second abutment straight surface 1201. The third inclined surface 1202 is parallel to the second inclined surface 902.

[0046] like Figure 5-6 As shown, in the mold closing state, the second abutting straight surface 1201 of the support rod 12 abuts against the first abutting straight surface 903 of the movable block 9, and the inclined surface 1 901 of the movable block 9 abuts against the step surface 703 of the ejection block 7.

[0047] A cavity for installing the runner rod 4 is provided at the top of the ejector block 7 , and the runner rod 4 passes through the cavity at the top of the ejector block 7 .

[0048] The specific demoulding process is as follows:

[0049] like Figure 7-10 After the product 6 is injected, the mold is opened, and the slider 3 starts to pull the core under the drive of the inclined guide column 11. After the slider 3 completes the core pulling, the second abutting surface 1201 of the support rod 12 stops abutting the first abutting surface 903 of the movable block 9 and prepares to move. The guide block 2 is ready to separate from the movable block 9. The ejection block 7 moves upward under the action of the spring 8. The movable block 9 starts to move and separate under the action of the ejection block 7. The ejection block 7 ejects the runner rod 4 and the product 6 to realize the demoulding of the product.

[0050] During the mold closing process, the ejector block 7 is reset by the action of the fixed mold 1 , and the movable block 9 is reset by the action of the guide block 2 .

Claims

1. An ejection mechanism for a pipe fitting mold, the pipe fitting mold comprising a fixed mold (1) and a movable mold (10) matched below the fixed mold, the bottom of the fixed mold (1) is provided with an inclined guide column (11), the lower cavity of the fixed mold (1) is provided with a guide block (2), the movable mold (10) is provided with a group of slider cores (13), the slider cores (13) are fixed to their corresponding sliders (3), characterized in that The upper mold cavity of the movable mold (10) is embedded with a set of ejection mechanisms for ejecting the product (6) and the runner rod (4). When the mold is closed, the ejection mechanism and the guide block (2) are abutted against each other, and the slider (3) starts to pull the core under the drive of the inclined guide column (11). After the slider (3) completes the core pulling, the ejection mechanism ejects the runner rod (4) and the product (6), thereby realizing the demoulding of the product.

2. The ejection mechanism of a pipe fitting mold according to claim 1, characterized in that Each ejection mechanism comprises an ejection block (7), a spring (8) and a movable block (9); a spring (8) is provided inside the ejection block (7); the ejection block (7) is limited by the movable block (9); and the guide block (2) abuts against the movable block (9).

3. The ejection mechanism of a pipe fitting mold according to claim 2, characterized in that The ejector block (7) comprises an ejector block body (701) and an ejector block base (702) arranged at the bottom of the ejector block body (701), the ejector block base (702) and the ejector block body (701) forming a step surface (703), and a cavity is provided inside the ejector block base (702), wherein the spring (8) is arranged in the cavity.

4. The ejection mechanism of a pipe fitting mold according to claim 3, characterized in that When the mold is closed, the spring (8) is in a compressed state.

5. The ejection mechanism of a pipe fitting mold according to claim 3, characterized in that The movable block (9) comprises a movable block main body, one side of which is provided with a first inclined surface (901) cooperating with the step surface (703); the other side of the movable block main body is provided with a second inclined surface (902), and the movable block main body is provided with a first abutting straight surface (903) below the second inclined surface (902).

6. The ejection mechanism of a pipe fitting mold according to claim 5, characterized in that The invention comprises a support rod (12), each ejection mechanism is provided with a support rod (12) on the side, the support rod (12) is provided with a second abutting straight surface (1201) matching with a first abutting straight surface (903) on the side facing the movable block (9), and a third inclined surface (1202) is provided on the support rod (12) above the second abutting straight surface (1201), and the third inclined surface (1202) is parallel to the second inclined surface (902).

7. The ejection mechanism of a pipe fitting mold according to claim 6, characterized in that In the mold closing state, the second abutting straight surface (1201) of the support rod (12) abuts against the first abutting straight surface (903) of the movable block (9), and the first inclined surface (901) of the movable block (9) abuts against the step surface (703) of the ejection block (7).

8. The ejection mechanism of a pipe fitting mold according to claim 1, characterized in that The lower cavity of the fixed mold (1) and the guide block (2), the upper cavity of the movable mold (10) and the slider core (13) form a mold cavity of the product (6).

9. The ejection mechanism of a pipe fitting mold according to claim 3, characterized in that A cavity for mounting a runner rod (4) is provided at the top of the ejection block (7), and the runner rod (4) passes through the cavity at the top of the ejection block (7).

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