Die with core pulling structure

Abstract

The utility model discloses a mould with a core-pulling structure, which relates to the technical field of mould equipment and comprises an upper mould and a lower mould matched with the upper mould, and the lower mould is provided with a main shell cavity and an auxiliary shell cavity. A sliding block is arranged in the lower die in a sliding mode, a module end matched with the groove is arranged on the sliding block, a baffle groove matched with the baffle is formed in the bottom of the module end of the sliding block, and the main shell cavity and the auxiliary shell cavity form a cavity matched with a product. The device further comprises a driving part. Due to the fact that the cavity wall of the auxiliary shell cavity is composed of the fixed part and the movable part, before injection molding, the driving piece drives the module end to move towards the side close to the auxiliary shell cavity, so that a complete cavity used for injection molding of the auxiliary shell is formed, and after injection molding of a product, the mold is not damaged. The module end is driven by the driving piece to move towards one side far away from the auxiliary shell cavity, so that the baffle is separated from the baffle groove, a formed product can be easily taken out only by separating the upper mold and the lower mold, and demolding is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of die equipment, in particular to a die with a core-pulling structure. Background Art

[0002] At present, a die is various molds and tools used in industrial production to obtain required products by methods such as injection molding, blow molding, extrusion, die casting or forging, smelting, stamping, etc. In short, a die is a tool for making formed articles. This tool is composed of various parts, and different dies are composed of different parts. It mainly realizes the processing of the outer shape of an article by changing the physical state of the formed material. It is known as the "mother of industry".

[0003] With the continuous improvement of requirements, some injection-molded products have an internal buckle structure, such as Figure 1 the shown product includes a main housing A, a secondary housing B vertically arranged at one end of the main housing A, and a groove C arranged on the outer side of the secondary housing B near the other end of the main housing A. A baffle D is arranged on one side of the groove C away from the main housing A. In the prior art die, when injecting and producing such products, since the internal buckle structure composed of the groove C and the baffle is stuck inside the die, it is difficult to demold the product after molding, affecting the production efficiency.

[0004] In view of this, there is an urgent need for a die with a core-pulling structure. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art, the utility model solves this problem with the following technical structure.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A die with a core-pulling structure includes an upper die and a lower die adapted to the upper die. A main housing cavity and a secondary housing cavity are opened at one end of the lower die close to the upper die;

[0008] A slider is slidably arranged in the lower die. A module end adapted to the groove C is arranged on the slider. A baffle groove adapted to the baffle D is arranged at the bottom of the slider at the module end. The module end is slidably arranged on one side of the secondary housing cavity. The main housing cavity, the secondary housing cavity, the module end and the baffle groove form a cavity adapted to the product;

[0009] It further includes a driving member for driving the module end to approach or move away from the secondary housing cavity.

[0010] Its further feature lies in that

[0011] A guide plate is arranged on the lower die. A chute is opened at the bottom end of the slider. The slider is clamped on the guide plate through the chute.

[0012] The slider is L-shaped. The module end is arranged inside one end of the slider, and the other end of the slider is arranged below the cavity of the secondary housing.

[0013] The driving member includes a connecting block and a power assembly. The connecting block is connected to one end of the slider located below the cavity of the secondary housing, and the power assembly is used to drive the connecting block to slide.

[0014] The power assembly includes an oil cylinder, and the output end of the oil cylinder is connected to the connecting block.

[0015] One end of the connecting block is provided with a bayonet, and the output end of the oil cylinder is clamped at the bayonet.

[0016] The oil cylinder is provided with a U-shaped plate with an opening facing the connecting block, and the side of the U-shaped plate away from the oil cylinder is connected to the lower mold.

[0017] The connecting block is provided with a limiting hole from top to bottom. The side of the limiting hole away from the slider is a first inclined surface, and the first inclined surface extends from top to bottom towards the side close to the slider. The upper mold is provided with a limiting post, and the limiting post is provided with a second inclined surface that matches the first inclined surface.

[0018] The lower mold is provided with a plurality of guide rods, and the upper mold is sleeved on the plurality of guide rods.

[0019] There are four guide rods.

[0020] Adopting the above structure of the present utility model can achieve the following beneficial effects:

[0021] Since the cavity wall of the secondary housing cavity is composed of a fixed part and a movable part, before injection molding, the driving member drives the module end to move towards the side close to the secondary housing cavity, so as to form a complete cavity for injecting the secondary housing B. When the product is injection molded, the driving member drives the module end to move towards the side away from the secondary housing cavity, so that the baffle plate disengages from the baffle plate groove. At this time, only by separating the upper and lower molds can the molded product be easily taken out to complete demolding, improving production efficiency and reducing product damage caused by inconvenient demolding. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the related technology of this application;

[0023] Figure 2 It is a schematic structural diagram of this application;

[0024] Figure 3 It is a schematic structural diagram of the related structure at the lower mold of this application;

[0025] Figure 4 It is a schematic structural diagram of the slider and the driving member of this application;

[0026] Figure 5 This is a schematic structural cross-section view of the connecting block and the slider in the present application.

[0027] In the figure: 1, main housing cavity; 2, auxiliary housing cavity; 3, slider; 31, module end; 32, baffle groove; 4, guide plate; 5, connecting block; 51, bayonet; 52, limit hole; 53, first inclined surface; 6, oil cylinder; 7, limit post; 71, second inclined surface; 8, U-shaped plate; 9, guide rod. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that the terms "comprising" and "having" and any variations thereof in the description and claims of the present utility model and the above-mentioned accompanying drawings are intended to cover non-exclusive inclusion. For example, a process, method, device, product or equipment comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or equipment.

[0030] The following will be further described in detail with reference to the attached Figures 1-5 This application will be further described in detail.

[0031] Refer to Figures 1-4As shown in the figure, a mold with a core-pulling structure includes an upper mold and a lower mold adapted to the upper mold. One end of the lower mold close to the upper mold is provided with a main housing cavity 1 and a secondary housing cavity 2. A slider 3 is slidably arranged in the lower mold. A module end 31 adapted to the groove C is arranged on the slider 3. A baffle groove 32 adapted to the baffle D is arranged at the bottom of the slider 3 at the module end 31. The module end 31 is slidably arranged on one side of the secondary housing cavity 2 (specifically, a sliding hole is provided on one side of the secondary housing cavity 2, and the module end 31 is slidably arranged at the sliding hole 31, and the module end 31 faces the secondary housing cavity 2). The main housing cavity, the secondary housing cavity, the module end, and the baffle groove form a cavity adapted to the product. It further includes a driving member for driving the module end 31 to approach or move away from the secondary housing cavity 2. Thus, since the cavity wall of the secondary housing cavity 2 is composed of a fixed part and a movable part (i.e., the module end 31), before injection molding, the driving member drives the module end 31 to move towards the side close to the secondary housing cavity 2 to form a complete cavity for injecting the secondary housing B. When the product is injection-molded, the driving member drives the module end 31 to move towards the side away from the secondary housing cavity 2, so that the baffle disengages from the baffle groove 32. At this time, only by separating the upper and lower molds can the molded product be easily taken out to complete demolding, improving production efficiency and reducing product damage caused by inconvenient demolding.

[0032] Reference Figure 5 As shown in the figure, in order to ensure the precise cooperation between the module end 31 and the secondary housing cavity 2, a guide plate 4 is arranged on the lower mold. A chute is provided at the bottom end of the slider 3, and the slider 3 is clamped on the guide plate 4 through the chute 3. Thus, the movement of the slider 3 is limited by the guide plate 4 to prevent the module end 31 from being misaligned, resulting in injection molding failure.

[0033] Reference Figure 4 and Figure 5 As shown in the figure, in this embodiment, the slider 3 is L-shaped. The module end 31 is arranged inside one end of the slider 3, and the other end of the slider 3 is arranged below the secondary housing cavity 2. Thus, the chute and the module end 31 can be respectively arranged on the two branches of the slider 3 to increase the length of the chute and make the slider 3 slide more stably.

[0034] Reference Figure 3 and Figure 4 As shown in the figure, the driving member includes a connecting block 5 and a power assembly. The connecting block 5 is connected to the end of the slider 3 located below the secondary housing cavity 2. The power assembly is used to drive the connecting block 5 to slide. The slider 3 and the power assembly are connected through the connecting block 5. The power assembly includes an oil cylinder 6. The output end of the oil cylinder 6 is connected to the connecting block 5. Specifically, a bayonet 51 is arranged at one end of the connecting block 5, and the output end of the oil cylinder 6 is clamped at the bayonet 51. Thus, by the work of the oil cylinder 6, the connecting block 5 is driven to move, and then the slider 3, and finally the module end 31 is driven to slide. And by opening the bayonet 51 on the connecting block 5, it is convenient to disassemble and assemble with the output end of the oil cylinder 6.

[0035] Reference Figure 2 and Figure 4 As shown, a U-shaped plate 8 with an opening facing the connecting block 5 is provided on the oil cylinder 6. The side of the U-shaped plate 8 away from the oil cylinder 6 is connected to the lower mold. In this way, the installation of the oil cylinder 6 is completed, and the connecting block 5 slides inside the U-shaped plate 8. The sliding of the connecting block 5 is limited by both sides of the U-shaped plate 8, improving the running stability.

[0036] Reference Figure 5 As shown, a limiting hole 52 is provided in the connecting block 5 from top to bottom. The side of the limiting hole 52 away from the slider 3 is a first inclined surface 53. The first inclined surface 53 extends from top to bottom towards the side close to the slider 3. A limiting post 7 is provided on the upper mold, and a second inclined surface 71 matching the first inclined surface 53 is provided on the limiting post 7. In this way, when the upper mold and the lower mold are clamped, the limiting post 7 is inserted into the limiting hole 52, and the second inclined surface 71 abuts against the first inclined surface 53, causing the connecting block 5 to move into the lower mold. When the upper mold and the lower mold are completely clamped, the limiting post 7 is completely inserted into the limiting hole 52. At this time, the module end 31 and the cavity of the auxiliary housing 2 form a complete cavity for injecting the auxiliary housing B. Through the cooperation of the limiting post 7 and the limiting hole 52, it is ensured that the slider 3 reaches the position, avoiding inaccurate driving of the oil cylinder 6 and resulting in injection failure, playing a role in assisting the oil cylinder 6 to drive the slider 3.

[0037] Further optimized, in order to ensure the accuracy of clamping the upper mold and the lower mold, a plurality of guide rods 9 are provided on the lower mold, and the upper mold is sleeved on the plurality of guide rods 9. The activities of the upper mold or the lower mold are guided by the plurality of guide rods 9. In this embodiment, four guide rods 9 are provided, and the four guide rods are respectively arranged at the four corners of the mold.

[0038] Working principle of the present utility model: Since the cavity wall of the auxiliary housing cavity 2 is composed of a fixed part and a movable part, before injection molding, the driving member drives the module end 31 to move towards the side close to the auxiliary housing cavity 2 to form a complete cavity for injecting the auxiliary housing B. When the product is injection molded, the driving member drives the module end 31 to move away from the side of the auxiliary housing cavity 2, so that the baffle is disengaged from the baffle groove 32. At this time, only by separating the upper and lower molds, the molded product can be easily taken out to complete demolding, improving production efficiency and reducing product damage caused by inconvenient demolding.

[0039] The above are only the preferred embodiments of the present application, and the present utility model is not limited to the above embodiments. It can be understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present utility model should be considered to be included within the protection scope of the present utility model.

Claims

1. A mold with a core-pulling structure, characterized in that, It includes an upper mold and a lower mold adapted to the upper mold. One end of the lower mold close to the upper mold is provided with a main housing cavity (1) and a secondary housing cavity (2). A slider (3) is slidably arranged in the lower mold. The slider (3) is provided with a module end (31) adapted to groove C. At the bottom of the module end (31) of the slider (3), there is a baffle groove (32) adapted to baffle D. The module end (31) is slidably arranged on one side of the secondary housing cavity (2). The main housing cavity (1), the secondary housing cavity (2), the module end (31), and the baffle groove (32) form a cavity adapted to the product. It further includes a driving member for driving the module end (31) to approach or depart from the secondary housing cavity (2).

2. The mold with a core-pulling structure according to claim 1, wherein: A guide plate (4) is arranged on the lower mold. A chute is opened at the bottom end of the slider (3), and the slider (3) is clamped on the guide plate (4) through the chute.

3. The mold with a core-pulling structure according to claim 1, characterized in that: The slider (3) is in an L shape. The module end (31) is arranged inside one end of the slider (3), and the other end of the slider (3) is arranged below the secondary housing cavity (2).

4. The mold with a core-pulling structure according to claim 3, wherein: The driving member includes a connecting block (5) and a power assembly. The connecting block (5) is connected to the end of the slider (3) located below the secondary housing cavity (2), and the power assembly is used to drive the connecting block (5) to slide.

5. A mold with a core-pulling structure according to claim 4, characterized in that: The power assembly includes an oil cylinder (6). The output end of the oil cylinder (6) is connected to the connecting block (5).

6. The mold with a core-pulling structure according to claim 5, characterized in that: One end of the connecting block (5) is provided with a bayonet (51), and the output end of the oil cylinder (6) is clamped at the bayonet (51).

7. The mold with a core-pulling structure according to claim 6, characterized in that: An L-shaped plate (8) with an opening facing the connecting block (5) is arranged on the oil cylinder (6). The side of the L-shaped plate (8) away from the oil cylinder (6) is connected to the lower mold.

8. A mold with a core-pulling structure according to claim 4, characterized in that: A limiting hole (52) is opened in the connecting block (5) from top to bottom. The side of the limiting hole (52) away from the slider (3) is a first inclined surface (53). The first inclined surface (53) extends from top to bottom towards the side close to the slider (3). A limiting post (7) is arranged on the upper mold, and a second inclined surface (71) adapted to the first inclined surface (53) is arranged on the limiting post (7).

9. A mold with a core-pulling structure according to claim 1, characterized in that: A plurality of guide rods (9) are arranged on the lower mold, and the upper mold is sleeved on the plurality of guide rods (9).

10. A mold with a core-pulling structure according to claim 9, characterized in that: There are four guide rods (9).

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