Mold core-pulling structure and injection mold thereof

Abstract

The utility model provides a mold core-pulling structure and an injection mold thereof, the mold core-pulling structure comprises a main body assembly, the main body assembly is internally provided with a core-pulling assembly, and the core-pulling assembly comprises a guide column, a guide rail, a first sliding block, a connecting block, a guide groove, a push-pull block, a sliding groove, a second sliding block, a mold core, a sleeve and a spring; a connecting block is arranged below the guide column, first sliding blocks are symmetrically and fixedly connected to the two sides of the connecting block, and the first sliding blocks are slidably connected to the inner side wall of the guide rail. According to the utility model, the guide post is matched with the guide groove to push the connecting block to move, and the connecting block drives the push-pull block and the sleeve to move, so that the second sliding block and the mold core move, the automatic core-pulling action of the mold core is realized, and the production efficiency is improved. Through cooperation of the push-pull block and the sleeve, inclined movement of the mold core can be adapted in the core pulling process, so that synchronous core pulling of the mold cores at multiple different angles is achieved, additional driving equipment does not need to be installed, and the product cost and the complexity of the mold are reduced.

Description

Technical Field

[0001] The utility model relates to a core-pulling structure, in particular to a core-pulling structure for a mold and an injection mold thereof, belonging to the technical field of injection molds. Background Art

[0002] Injection molds are the core tools in modern industrial production. They efficiently produce plastic products with complex shapes and precise dimensions by precisely heating, injecting under high pressure, and rapidly cooling plastic raw materials. These molds are widely used in multiple fields such as packaging, daily necessities, automobiles, and electronics, meeting the requirements of all walks of life for high-quality plastic products. Injection molds not only improve production efficiency, reduce costs, but also promote product design innovation.

[0003] The core-pulling structure of a mold is a key part in mold design, especially when dealing with plastic products with side wall through holes, grooves, or bosses. These structures enable the formed part (movable core) to be withdrawn from the plastic product when the mold is opened, so that the product can be smoothly demolded.

[0004] When there are many lateral holes, grooves, inclined planes, or bosses in the injection product, the core-pulling structure of the mold needs to design multiple cores in different directions. These cores have different core-pulling directions during the core-pulling process and usually require multiple driving devices to complete the core-pulling work, which not only increases the complexity of the mold but also raises the production cost of the product. Therefore, a core-pulling structure for a mold and an injection mold thereof are proposed. Summary of the Utility Model

[0005] In view of this, the utility model provides a core-pulling structure for a mold and an injection mold thereof to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the embodiment of the utility model is realized as follows: A core-pulling structure for a mold and an injection mold thereof include a main body component, and a core-pulling component is arranged inside the main body component. The core-pulling component includes a guide post, a guide rail, a first slider, a connecting block, a guide groove, a push-pull block, a chute, a second slider, a core, a sleeve, and a spring;

[0007] A connecting block is arranged below the guiding column. First sliders are symmetrically and fixedly connected to both sides of the connecting block. The first sliders are slidably connected to the inner side walls of the guide rails. A guiding groove is formed inside the connecting block. Pushing and pulling blocks are evenly and fixedly connected to the bottom of the connecting block. A second slider is slidably connected to the inner side wall of the chute. A mold core is fixedly connected to one side of the second slider. A sleeve is fixedly connected to the top of the second slider. A spring is fixedly connected to the inner side wall of the sleeve. The pushing and pulling block is slidably connected to the inner side wall of the sleeve. By means of the cooperation between the guiding column and the guiding groove, the connecting block is pushed to move. During the movement of the connecting block along the direction of the guide rail, the pushing and pulling block is driven to push the sleeve to move, so that the second slider and the mold core move, realizing the automatic core-pulling action of the mold core.

[0008] Further preferably: The main body assembly includes a lower support seat and a lower mounting plate;

[0009] The lower mounting plate is fixedly connected to the top of the lower support seat.

[0010] Further preferably: A cavity is formed in the top of the lower mounting plate.

[0011] Further preferably: A plurality of through grooves are formed in the top of the lower mounting plate.

[0012] Further preferably: The guide rails are symmetrically formed in the inner side walls of the through grooves.

[0013] Further preferably: A plurality of the guiding grooves are formed in the bottom of the inner side walls of the through grooves.

[0014] Further preferably: An upper mounting plate is arranged above the lower mounting plate. An upper support seat is fixedly connected to the top of the upper mounting plate. A plurality of the guiding columns are fixedly connected to the bottom of the upper mounting plate. The guiding columns are arranged opposite to the guiding grooves.

[0015] Further preferably: A guiding hole is formed in the inner side wall of the cavity. The mold core is slidably connected to the inner side wall of the guiding hole.

[0016] The present utility model also provides an injection mold, including the mold core-pulling structure.

[0017] Due to the adoption of the above technical solutions in the embodiments of the present utility model, it has the following advantages:

[0018] First, through the cooperation between the guiding column and the guiding groove, the connecting block is pushed to move. The connecting block drives the pushing and pulling block and the sleeve to move, so that the second slider and the mold core move, realizing the automatic core-pulling action of the mold core and improving the production efficiency.

[0019] Second, through the cooperation of the push-pull block and the sleeve, the utility model can adapt to the oblique movement of the die core during the core-pulling process, thereby realizing the synchronous core-pulling of multiple die cores at different angles, without the need to install additional driving equipment, reducing the product cost and the complexity of the mold.

[0020] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 Structural diagram of the utility model;

[0023] Figure 2 Structural diagram of the upper mounting plate of the utility model;

[0024] Figure 3 Structural diagram of the lower mounting plate of the utility model;

[0025] Figure 4 Structural diagram of the die core of the utility model;

[0026] Figure 5 Internal structural diagram of the second slider of the utility model.

[0027] Reference numerals: 10, main body assembly; 11, lower support seat; 12, lower mounting plate; 13, upper mounting plate; 14, upper support seat; 15, cavity; 16, through groove; 17, guide hole; 20, core-pulling assembly; 21, guide post; 22, guide rail; 23, first slider; 24, connecting block; 25, guide groove; 26, push-pull block; 27, chute; 28, second slider; 29, die core; 210, sleeve; 211, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0029] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0030] As Figures 1-5 shown, the embodiments of the present utility model provide a mold core-pulling structure and an injection mold thereof, including a main body assembly 10. A core-pulling assembly 20 is arranged inside the main body assembly 10. The core-pulling assembly 20 includes a guide post 21, a guide rail 22, a first slider 23, a connecting block 24, a guide groove 25, a push-pull block 26, a sliding groove 27, a second slider 28, a mold core 29, a sleeve 210 and a spring 211;

[0031] A connecting block 24 is arranged below the guide post 21. First sliders 23 are symmetrically and fixedly connected to both sides of the connecting block 24. The first sliders 23 are slidably connected to the inner side wall of the guide rail 22. A guide groove 25 is formed inside the connecting block 24. Push-pull blocks 26 are uniformly and fixedly connected to the bottom of the connecting block 24. A second slider 28 is slidably connected to the inner side wall of the sliding groove 27. A mold core 29 is fixedly connected to one side of the second slider 28. A sleeve 210 is fixedly connected to the top of the second slider 28. A spring 211 is fixedly connected to the inner side wall of the sleeve 210. The push-pull block 26 is slidably connected to the inner side wall of the sleeve 210. By using the cooperation of the guide post 21 and the guide groove 25 to push the connecting block 24 to move, during the movement of the connecting block 24 along the direction of the guide rail 22, the push-pull block 26 is driven to push the sleeve 210 to move, so that the second slider 28 and the mold core 29 move, realizing the automatic core-pulling action of the mold core 29.

[0032] In this embodiment, specifically: the main body assembly 10 includes a lower support base 11 and a lower mounting plate 12;

[0033] The lower mounting plate 12 is fixedly connected to the top of the lower support base 11.

[0034] In this embodiment, specifically: a cavity 15 is formed at the top of the lower mounting plate 12, and the product is cooled and formed in the cavity 15.

[0035] In this embodiment, specifically: a plurality of through grooves 16 are formed at the top of the lower mounting plate 12, and the number of the through grooves 16 is set according to the position and number of the mold cores 29.

[0036] In this embodiment, specifically: the guide rails 22 are symmetrically formed on the inner side walls of the through grooves 16, and the guide rails 22 are used to ensure the horizontal movement of the first sliders 23 and the connecting block 24.

[0037] In this embodiment, specifically: a plurality of guide grooves 25 are formed at the bottom of the inner side walls of the through grooves 16, and the guide grooves 25 are used to control the movement direction of the mold core 29. By setting the guide grooves 25 at different angles, the production processes of different-angle empty grooves and other structures on the side walls of the product can be satisfied.

[0038] In this embodiment, specifically: an upper mounting plate 13 is disposed above the lower mounting plate 12, a top of the upper mounting plate 13 is fixedly connected to an upper support seat 14, a plurality of guide posts 21 are fixedly connected to a bottom of the upper mounting plate 13, and the guide posts 21 are disposed opposite to the guide grooves 25.

[0039] In this embodiment, specifically: a guide hole 17 is formed in an inner side wall of the cavity 15, a die core 29 is slidably connected to an inner side wall of the guide hole 17, and the die core 29 passes through the guide hole 17 and enters the inside of the cavity 15.

[0040] The present utility model further provides an injection mold, including a mold core pulling structure.

[0041] When the present utility model is in operation: during the mold opening process of the mold, the upper mounting plate 13 moves upward, driving the guide posts 21 to move upward. By using the cooperation of the guide posts 21 and the guide grooves 25, the connecting block 24 is pushed to move. During the movement of the connecting block 24 along the direction of the guide rail 22, the push-pull block 26 is driven to push the sleeve 210 to move, so that the second slider 28 and the die core 29 move, realizing the automatic core pulling action of the die core 29, improving the production efficiency. Through the cooperation of the push-pull block 26 and the sleeve 210, during the core pulling process, the push-pull block 26 can move on the inner side wall of the sleeve 210 to adapt to the oblique movement of the die core 29, thereby realizing the synchronous core pulling of the die cores 29 at multiple different angles, without the need to install additional driving devices, reducing the product cost and the complexity of the mold.

[0042] The above is only the specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions thereof, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A mold core-pulling structure, comprising a main body assembly (10), characterized in that: Inside the main body component (10), a core-pulling component (20) is provided. The core-pulling component (20) includes a guide post (21), a guide rail (22), a first slider (23), a connecting block (24), a guide groove (25), a push-pull block (26), a chute (27), a second slider (28), a mold core (29), a sleeve (210), and a spring (211). Below the guide post (21), a connecting block (24) is provided. On both sides of the connecting block (24), first sliders (23) are symmetrically and fixedly connected. The first sliders (23) are slidably connected to the inner side wall of the guide rail (22). Inside the connecting block (24), a guide groove (25) is formed. At the bottom of the connecting block (24), push-pull blocks (26) are uniformly and fixedly connected. The inner side wall of the chute (27) is slidably connected to a second slider (28). On one side of the second slider (28), a mold core (29) is fixedly connected. On the top of the second slider (28), a sleeve (210) is fixedly connected. The inner side wall of the sleeve (210) is fixedly connected with a spring (211). The push-pull block (26) is slidably connected to the inner side wall of the sleeve (210).

2. The core-pulling structure of a mold according to claim 1, characterized in that: The main body component (10) includes a lower support base (11) and a lower mounting plate (12). On the top of the lower support base (11), a lower mounting plate (12) is fixedly connected.

3. The core-pulling structure of a mold according to claim 2, wherein: On the top of the lower mounting plate (12), a cavity (15) is formed. On the inner side wall of the cavity (15), a guide hole (17) is formed. The mold core (29) is slidably connected to the inner side wall of the guide hole (17).

4. A mold core-pulling structure according to claim 3, characterized in that: On the top of the lower mounting plate (12), a number of through slots (16) are formed.

5. A core-pulling structure of a mold according to claim 4, characterized in that: The guide rails (22) are symmetrically formed on the inner side walls of the through slots (16).

6. The core-pulling structure of a mold according to claim 5, characterized in that: A number of the guide grooves (25) are formed at the bottom of the inner side walls of the through slots (16).

7. A core-pulling structure of a mold according to claim 4, characterized in that: Above the lower mounting plate (12), an upper mounting plate (13) is provided. On the top of the upper mounting plate (13), an upper support base (14) is fixedly connected. A number of the guide posts (21) are fixedly connected to the bottom of the upper mounting plate (13). The guide posts (21) are arranged opposite to the guide grooves (25).

8. An injection mold, characterized in that: It includes a mold core-pulling structure according to any one of claims 1-7.

Images