Core-pulling back-off demoulding structure

Abstract

The utility model discloses a core-pulling back-off demoulding structure, and relates to the technical field of shaft core demoulding, the core-pulling back-off demoulding structure comprises a mould assembly, the mould assembly comprises a mould box, the middle part in the mould box is fixedly connected with a mould cylinder, the mould cylinder is used for being in butt joint with a core-pulling insert, and a highlight surface is arranged in the mould cylinder; the conical ring is connected to one end of the mold cylinder in a sleeving mode, a warning sticker is arranged on the conical ring and used for marking and reminding, and the core pulling insert is connected into the mold cylinder in a sliding mode. During demolding, the mold box is pulled downwards to take down the connecting blocks, the limiting block is pulled to take out the limiting block with the dovetail block, the two groups of connecting blocks are pulled to take out the two groups of connecting blocks, the core-pulling insert is pulled to take out the core-pulling insert, and a mechanical shaft core subjected to injection molding in the core-pulling insert is more convenient to take down; and the convenience during small-space back-off demolding can be effectively improved, so that the efficiency and speed of demolding the mechanical shaft core after injection molding are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the core demoulding technical field, and specifically relates to a core-pulling reverse-docking demoulding structure. BACKGROUND

[0002] With the rapid development of manufacturing industry, the complexity and diversity of product design are increasing, which puts forward higher requirements for mold design and manufacturing. In many products, in order to meet the functional requirements and aesthetics, reverse-docking structures often need to be designed in limited space. These reverse-docking structures need to be smoothly demolded after injection molding, and core pulling refers to the process that, in the molding process, in order to take out the molded part inside or at the bottom of the product, the core (i.e. the molded part) in the mold needs to be pulled out through a specific mechanism or method. This process is widely used in the fields of metal processing and plastic molding.

[0003] The prior art has the following disadvantages: the reverse-docking structure in a small space is often limited by space, so that the traditional demolding method is difficult to implement. Traditional demolding methods, such as forced demolding, may damage the plastic parts and affect the quality and appearance of the product. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving one of the technical problems existing in the prior art; therefore, the utility model provides a core-pulling reverse-docking demoulding structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a core-pulling reverse-docking demoulding structure, comprising: a mold assembly, the mold assembly comprising

[0006] A mold box, a mold cylinder is fixedly connected to the middle part in the mold box, the mold cylinder is used for butt joint with a core-pulling insert, and a high-brightness surface is arranged in the mold cylinder;

[0007] A conical ring is sleeved at one end of the mold cylinder, a warning sticker is arranged on the conical ring, the warning sticker is used for identification and reminder, and the core-pulling insert is slidingly connected in the mold cylinder.

[0008] Preferably, the mold assembly is provided with a connecting assembly, the connecting assembly is provided with two groups and is symmetrically arranged, the connecting assembly comprises a connecting block, and a dovetail groove is arranged on the inner side of the connecting block.

[0009] Preferably, a limiting assembly is slidingly connected to one side of the connecting assembly, and the limiting assembly is provided with two groups and is symmetrically arranged.

[0010] Preferably, the limiting assembly comprises a clamping block, limiting blocks are fixedly connected to the two sides of the clamping block, and a dovetail block is fixedly connected to one side of the clamping block.

[0011] Preferably, the connecting assembly is slidingly connected with a stable assembly, the stable assembly comprises a fixed insert, a connecting groove is arranged on the fixed insert, and a connecting hole is arranged at the middle portion of the fixed insert;

[0012] A protective cylinder is fixed to the middle portion of the lower surface of the fixed insert.

[0013] Preferably, the connecting groove is arranged in two groups and symmetrically, and the protective cylinder is communicated with the connecting hole.

[0014] Preferably, the clamping block is attached to the outer surface of the protective cylinder away from the side of the dovetail block, the connecting block is slidingly connected in the connecting groove of the fixed insert, the core-pulling insert is placed in the connecting hole and placed in the mold cylinder through the protective cylinder.

[0015] Preferably, the dovetail block is slidingly connected in the dovetail groove of the connecting block, and the lateral surface arranged at the middle portion of the side of the connecting block is in contact with the upper surface of the mold box.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] (1) When demolding, the mold box is pulled downward, the connecting block is removed, the limiting block is pulled, the limiting block is taken out with the dovetail block, the two groups of connecting blocks are pulled, the two groups of connecting blocks are removed, the core-pulling insert is pulled, the core-pulling insert is removed, the mechanical shaft core in the core-pulling insert is more convenient to take out, the convenience of small-space reverse-drawing demolding can be effectively improved, and the efficiency and speed of the mechanical shaft core demolding after injection molding are improved.

[0018] (2) The mold box is made of alloy material, so that the durability and stability of the mold box are improved, the material of the mold cylinder is high-strength stainless steel material, so that the high temperature and pressure in the injection molding process are adapted, the high-brightness surface is polished to ensure the surface smoothness and reflectivity, and the surface gloss and aesthetic degree of the injection molding product are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is an explosion diagram of the utility model;

[0021] Figure 3 It is a cross-sectional structure schematic diagram of the mold assembly of the utility model;

[0022] Figure 4 It is a local structure schematic diagram of the mold assembly of the utility model;

[0023] Figure 5 It is a three-dimensional structure schematic diagram of the stable assembly of the utility model;

[0024] Figure 6 It is a three-dimensional structure schematic view of the connecting assembly of the utility model;

[0025] Figure 7 It is a three-dimensional structure schematic view of the limiting assembly of the utility model.

[0026] In the figure: 1, mold assembly; 2, stable assembly; 3, connecting assembly; 4, core-pulling insert; 5, limiting assembly; 100, mold box; 101, mold cylinder; 102, high bright surface; 103, conical ring; 104, warning sticker; 200, fixed insert; 201, protection cylinder; 202, connecting groove; 203, connecting hole; 301, connecting block; 302, dovetail groove; 500, clamping block; 501, limiting block; 502, dovetail block. DETAILED DESCRIPTION

[0027] The technical solutions of the utility model will be described clearly and completely below in combination with embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] EMBODIMENT

[0029] Please refer to Figure 1 - Figure 7 The application provides a core-pulling and undercut demolding structure, which comprises a mold assembly 1, the mold assembly 1 comprises

[0030] A mold box 100, a mold cylinder 101 is fixedly connected to the middle part in the mold box 100, the mold cylinder 101 is used for butt joint with a core-pulling insert 4, and a high bright surface 102 is arranged in the mold cylinder 101.

[0031] A conical ring 103 is sleeved at one end of the mold cylinder 101, a warning sticker 104 is arranged on the conical ring 103, the warning sticker 104 is used for identification and reminding, and the core-pulling insert 4 is slidingly connected in the mold cylinder 101.

[0032] It should be noted that the mold box 100 is made of alloy material to improve the durability and stability of the mold box 100, the material of the mold cylinder 101 is high-strength stainless steel material to adapt to high temperature and pressure in the injection molding process, and the high bright surface 102 is polished to ensure the surface smoothness and reflectivity, thereby improving the surface gloss and aesthetic degree of the injection molding product.

[0033] In the embodiment, preferably, the mold assembly 1 is placed with the connecting assembly 3, the connecting assembly 3 is provided with two groups and is symmetrically arranged, the connecting assembly 3 comprises a connecting block 301, and the inner side of the connecting block 301 is provided with a dovetail groove 302.

[0034] It should be noted that the material of the connecting block 301 is high-strength alloy, so as to improve excellent tensile strength and toughness, the dovetail groove 302 is formed through precision machining, a sliding connection interface with the dovetail block 502 is provided, and the stability and reliability between the connecting assembly 3 and the limiting assembly 5 are ensured.

[0035] In the embodiment, preferably, one side of the connecting assembly 3 is slidingly connected with the limiting assembly 5, and the limiting assembly 5 is provided with two groups and is symmetrically arranged.

[0036] In the embodiment, preferably, the limiting assembly 5 comprises a clamping block 500, limiting blocks 501 are fixedly connected to the two sides of the clamping block 500, and a dovetail block 502 is fixedly connected to one side of the clamping block 500.

[0037] It should be noted that the material of the dovetail block 502 is the same as that of the connecting block 301, so as to provide stable connection with the connecting block 301, the material of the clamping block 500 is wear-resistant alloy, has good clamping force and anti-deformation capacity, is connected with the connecting assembly and the mold assembly 1 through the limiting blocks 501 and the dovetail block 502, and stable clamping and positioning are realized, and the limiting blocks 501 are arranged to limit the height of the fixed insert 200.

[0038] In the embodiment, preferably, the connecting assembly 3 is slidingly connected with the stable assembly 2, the stable assembly 2 comprises a fixed insert 200, the fixed insert 200 is provided with a connecting groove 202, and the middle part of the fixed insert 200 is provided with a connecting hole 203.

[0039] The protection cylinder 201 is fixed to the middle part of the lower surface of the fixed insert 200.

[0040] It should be noted that the protection cylinder 201 is made of high-strength material, so that the protection cylinder 201 has good impact resistance and can protect the core-pulling insert 4 from external damage, and the connecting hole 203 can ensure the position and stability in the injection molding process.

[0041] In the embodiment, preferably, the connecting groove 202 is provided with two groups and is symmetrically arranged, and the protection cylinder 201 communicates with the connecting hole 203.

[0042] In the embodiment, preferably, one side of the clamping block 500, away from the dovetail block 502, is attached to the outer surface of the protection cylinder 201, the connecting block 301 is slidingly connected in the connecting groove 202 of the fixed insert 200, the core-pulling insert 4 is placed in the connecting hole 203 and placed in the mold cylinder 101 through the protection cylinder 201.

[0043] It needs to be explained that the material of the fixed insert 200 is corrosion-resistant stainless steel material to adapt to the high temperature and pressure in the injection molding process, as the main part of the stable assembly, providing the connecting groove 202 and the connecting hole 203 for mounting and fixing other parts.

[0044] In this embodiment, preferably, the dovetail block 502 is slidingly connected in the dovetail groove 302 opened in the connecting block 301, and the transverse surface provided in the middle of one side of the connecting block 301 is in contact with the upper surface of the mold box 100.

[0045] The working principle of the utility model is as follows: when demolding, first hold the two groups of connecting blocks 301 and pull down the mold box 100, the mold box 100 takes the mold cylinder 101 along the clamping block 500 and the connecting block 301, hold the two groups of connecting blocks 301 and pull the limiting block 501, the limiting block 501 takes the dovetail block 502 along the dovetail groove 302 opened in the connecting block 301, hold the fixed insert 200, pull the two groups of connecting blocks 301, the two groups of connecting blocks 301 are slidingly taken out along the connecting groove 202 opened in the fixed insert 200, pull the core-pulling insert 4, the core-pulling insert 4 is taken out along the connecting hole 203 in the protective cylinder 201, so that the injection-molded mechanical shaft core in the core-pulling insert 4 is more convenient to pull out, which can effectively improve the convenience of demolding in small space and reverse buckling, thereby improving the efficiency and speed of demolding of the injection-molded mechanical shaft core.

[0046] The above embodiments are only used to illustrate the technical method of the utility model and not to limit, although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A core-pulling undercut demolding structure, characterized in that, include: Mold assembly (1), the mold assembly (1) comprising A mold box (100) is provided with a mold cylinder (101) fixed in the middle of the mold box (100). The mold cylinder (101) is used to dock with the core-pulling insert (4). A high-gloss surface (102) is provided inside the mold cylinder (101). A conical ring (103) is sleeved on one end of a mold cylinder (101). A warning sticker (104) is provided on the conical ring (103) for identification and reminder. The core-pulling insert (4) is slidably connected inside the mold cylinder (101).

2. The core-pulling undercut demolding structure according to claim 1, characterized in that, The mold assembly (1) is provided with a connecting assembly (3). The connecting assembly (3) is provided in two sets and is symmetrically arranged. The connecting assembly (3) includes a connecting block (301) and a dovetail groove (302) is provided on the inner side of the connecting block (301).

3. The core-pulling undercut demolding structure according to claim 2, characterized in that, One side of the connecting component (3) is slidably connected to a limiting component (5), and the limiting component (5) is provided in two sets and is arranged symmetrically.

4. The core-pulling undercut demolding structure according to claim 3, characterized in that, The limiting component (5) includes a clamping block (500), and limiting blocks (501) are fixedly connected to both sides of the clamping block (500). A dovetail block (502) is fixedly connected to one side of the clamping block (500).

5. The core-pulling undercut demolding structure according to claim 4, characterized in that, The connecting component (3) is slidably connected to the stabilizing component (2), the stabilizing component (2) includes a fixing insert (200), the fixing insert (200) is provided with a connecting groove (202), and the fixing insert (200) is provided with a connecting hole (203) in the middle. A protective sleeve (201) is fixed to the middle of the lower surface of the fixing insert (200).

6. The core-pulling undercut demolding structure according to claim 5, characterized in that, The connecting groove (202) is provided in two sets and is arranged symmetrically, and the protective cylinder (201) is connected to the connecting hole (203).

7. The core-pulling undercut demolding structure according to claim 4, characterized in that, The clamping block (500) is attached to the outer surface of the protective cylinder (201) on the side away from the dovetail block (502). The connecting block (301) is slidably connected to the connecting groove (202) opened in the fixing insert (200). The core-pulling insert (4) is placed in the connecting hole (203) and passes through the protective cylinder (201) and is placed in the mold cylinder (101).

8. The core-pulling undercut demolding structure according to claim 7, characterized in that, The dovetail block (502) is slidably connected to the dovetail groove (302) opened in the connecting block (301), and the cross-section of the middle part of one side of the connecting block (301) is in contact with the upper surface of the mold box (100).

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