Injection mold for strong ejection of a spring block

Abstract

The utility model discloses an injection mold of elastic block strong detachment down buckle, including upper fixed plate and female die plate, the bottom of upper fixed plate is installed with female die plate, the outside of female die plate is provided with lower fixed plate, the top of lower fixed plate is installed with die foot, the top of die foot is installed with male die plate, the inside of female die plate is installed with four groups of spacing limiting sleeve, the inside of male die plate is installed with four groups of spacing limiting post, limiting post and limiting sleeve sliding connection, the inside central position of female die plate is installed with female die kernel. The utility model not only realized injection mold convenient to carry out the down pressure injection molding, avoided the deviation when down pressure, improved the stability when down pressure of injection mold, and realized injection mold convenient to clean the upper and lower mold, facilitated the elastic push of injection product to strong detachment without damage, improved the convenience of injection mold to clean the upper and lower mold.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold for strong release and overlocking of spring blocks. Background Technology

[0002] Injection molding is a molding method that uses an injection molding machine to inject heated and molten plastic or rubber material into a mold cavity under high pressure, where it cools and solidifies to form a product of a predetermined shape. Its core principle is to transform material from granules to a finished product through thermodynamic changes (heating and plasticizing, and cooling and solidifying) and mechanical pressure (injection and holding pressure). This process is suitable for thermoplastic plastics (such as polyethylene and polypropylene) and some thermosetting materials, and can be used for mass production of high-precision, complex-structured parts.

[0003] For example, the injection mold with a large undercut volume for strong release disclosed in the authorization announcement number CN220362913U includes: a panel; an A plate, which is disposed at the lower end of the panel; an injection mechanism, which has eight sets of symmetrical equipment: a front mold core, which is disposed at the upper end of the A plate; a front mold insert, which is disposed at the upper end of the front mold core; and a B plate, which is disposed at the lower end of the A plate.

[0004] Although it achieves the goal of opening plates A and B, the front mold core and front mold insert mounted on plate A will also complete the mold opening together with plate A. When plates A and B are opened, the small slider is opened simultaneously by the action of the inclined guide pillar, thus completing the first stage of mold opening for the plastic part, creating space for deformation of the plastic part in the subsequent forced ejection. Subsequently, the driving cylinder body pulls the large slider to complete the second stage of mold opening in the radial direction of the plastic part, realizing the radial forced ejection of the plastic part. Thus, the forced ejection effect is achieved through radial slider staged mold opening, forced ejection ring buckle, and axial non-contact ejection of the plastic part.

[0005] However, this does not solve the problem that existing injection molds of this type are generally not conducive to convenient downward injection when in use. During downward injection, deviation may occur, affecting the stability of the injection mold during downward injection. It is also not conducive to convenient cleaning of the upper and lower molds, nor to elastically pushing and forcefully removing the injection molded product without damage, thus affecting the convenience of cleaning the upper and lower molds. Utility Model Content

[0006] The purpose of this utility model is to provide an injection mold with a spring block for strong release and overlocking, so as to solve the problems mentioned in the background art, such as the inconvenience of injection molds for convenient downward injection, the possibility of displacement during downward injection, which affects the stability of the injection mold during downward injection, the inconvenience of convenient cleaning of the upper and lower molds, the inconvenience of elastically pushing the injection molded product to release it without damage, and the inconvenience of cleaning the upper and lower molds.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for a spring block with strong release and undercut, comprising an upper fixed plate and a female template. The female template is installed at the bottom of the upper fixed plate, and a lower fixed plate is provided outside the female template. A mold foot is installed at the top of the lower fixed plate, and a male template is installed at the top of the mold foot. Four sets of equally spaced limiting sleeves are installed inside the female template, and four sets of equally spaced limiting posts are installed inside the male template. The limiting posts are slidably connected to the limiting sleeves. A female mold core is installed at the center of the inside of the female template, and a male mold core is installed at the center of the inside of the male template. A first serpentine pipe is installed inside the female template above the female mold core, and a second serpentine pipe is installed inside the male template below the male mold core. Four sets of equally spaced sliding pillars are installed inside the mold foot, and an injection connection pipe is installed at the top of the upper fixed plate.

[0008] Preferably, an injection-molded tube is installed inside the upper fixing plate, and the injection-molded tube extends through the upper fixing plate to its outside.

[0009] Preferably, the top end of the injection molding tube is connected to the injection molding connecting pipe, and the bottom end of the injection molding tube is equipped with a delivery pipe.

[0010] Preferably, the male mold core has two sets of conveying grooves inside, and four sets of equally spaced support columns are provided on the side of the male mold core away from the conveying grooves.

[0011] Preferably, the top of each support column is equipped with a lower mold body, and the interior of the female mold core is provided with four sets of wedge-shaped push blocks at equal intervals.

[0012] Preferably, the interior of each wedge-shaped push block is equipped with an upper mold body, and the top of each wedge-shaped push block is equipped with a spring.

[0013] Preferably, the wedge-shaped pusher has a connecting post installed on the side of its top that is away from the spring, and the interior of the female mold core has four sets of first grooves at equal intervals.

[0014] Preferably, a second groove is provided on the side of the female mold core away from the first groove, and the end of the spring away from the wedge-shaped push block is connected to the first groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the injection mold not only realizes convenient downward injection, avoids deviation during downward injection, and improves the stability of the injection mold during downward injection, but also realizes convenient cleaning of the upper and lower molds, facilitates elastic pushing and non-damaging strong release of the injection molded product, and improves the convenience of cleaning the upper and lower molds.

[0016] (1) Press down the upper fixed plate so that the upper fixed plate drives the female template, the limiting sleeve, the female mold core and the first serpentine pipe to descend. Under the sliding support of the limiting sleeve and the limiting column, the female template descends vertically and contacts the male template. Injection is performed through the injection connection pipe inside the upper fixed plate. The liquid enters the injection tube through the injection connection pipe, is injected into the delivery pipe through the injection tube, flows into the delivery groove through the delivery pipe, and flows into the male mold core through the delivery groove. The liquid flows to the surface of the lower mold body. With the cooperation of the upper mold body, the upper mold body and the lower mold body make contact and injection molding. The coolant is delivered through the first serpentine pipe to cool and demold the female mold core. The coolant is delivered through the second serpentine pipe to cool and demold the male mold core. This realizes convenient pressing injection of the injection mold, avoids the situation of deviation during pressing, and improves the stability of the injection mold during pressing.

[0017] (2) Lift the upper fixed plate upwards, so that the upper fixed plate drives the mother plate, the limiting sleeve, the mother mold core, and the first serpentine pipe to rise. The mother mold core drives the wedge push block and the upper mold body to rise through the spring. Under the elastic support of the spring and the support of the first groove, the spring is reset. The spring drives the wedge push block and the upper mold body to be ejected, which facilitates the cleaning of the upper mold body and the lower mold body. At the same time, it facilitates the elastic push and strong release of the injection molded product without damage. It realizes the convenient cleaning of the upper and lower molds of the injection mold and facilitates the elastic push and strong release of the injection molded product without damage. It improves the convenience of cleaning the upper and lower molds of the injection mold. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front view structural diagram of the present utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the limiting sleeve of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the limiting post of this utility model;

[0022] Figure 5 This is a schematic diagram of the exploded structure of the mother template of this utility model;

[0023] Figure 6 This is a front view structural diagram of the injection-molded tube of this utility model;

[0024] Figure 7 This is a three-dimensional structural diagram of the lower mold body of this utility model;

[0025] Figure 8 This is a three-dimensional structural diagram of the wedge-shaped pusher of this utility model;

[0026] Figure 9 This is a three-dimensional structural diagram of the spring of this utility model;

[0027] Figure 10 This is a three-dimensional structural diagram of the master mold core of this utility model;

[0028] Figure 11 This is a frontal cross-sectional view of the female mold core of this utility model.

[0029] In the diagram: 1. Upper fixing plate; 2. Female mold plate; 3. Male mold plate; 4. Mold foot; 5. Lower fixing plate; 6. Limiting sleeve; 7. Limiting post; 8. Female mold core; 9. Male mold core; 10. First serpentine pipe; 11. Second serpentine pipe; 12. Sliding column; 13. Injection connecting pipe; 14. Injection pipe; 15. Conveying pipe; 16. Conveying groove; 17. Support column; 18. Wedge-shaped push block; 19. Upper mold body; 20. Spring; 21. Connecting post; 22. First groove; 23. Second groove; 24. Lower mold body. Detailed Implementation

[0030] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0031] Please see Figure 1-11 An embodiment of this utility model provides: an injection mold for a spring block with a strong release and overturning mechanism, comprising an upper fixed plate 1 and a female template 2. The female template 2 is installed at the bottom of the upper fixed plate 1. A lower fixed plate 5 is provided on the outside of the female template 2. A mold foot 4 is installed at the top of the lower fixed plate 5. A male template 3 is installed at the top of the mold foot 4. Four sets of equally spaced limiting sleeves 6 are installed inside the female template 2. Four sets of equally spaced limiting posts 7 are installed inside the male template 3. The limiting posts 7 are slidably connected to the limiting sleeves 6. A female mold core 8 is installed at the center of the inside of the female template 2. A male mold core 9 is installed at the center of the inside of the male template 3. A first serpentine pipe 10 is installed inside the female template 2 above the female mold core 8. A second serpentine pipe 11 is installed inside the male template 3 below the male mold core 9. Four sets of equally spaced sliding posts 12 are installed inside the mold foot 4. An injection connection pipe 13 is installed at the top of the upper fixed plate 1.

[0032] An injection tube 14 is installed inside the upper fixing plate 1, and the injection tube 14 extends through the upper fixing plate 1 to its outside.

[0033] The top end of the injection tube 14 is connected to the injection connection pipe 13, and the bottom end of the injection tube 14 is equipped with a delivery pipe 15.

[0034] The male mold core 9 has two sets of conveying grooves 16 inside, and four sets of support columns 17 with equal spacing are provided on the side of the male mold core 9 away from the conveying grooves 16.

[0035] When using an injection mold with a spring-loaded, force-release buckle, the upper fixing plate 1 is pressed down, causing the upper fixing plate 1 to drive the female mold plate 2, the limiting sleeve 6, the female mold core 8, and the first serpentine pipe 10 to descend. Under the sliding support of the limiting sleeve 6 and the limiting post 7, the female mold plate 2 descends vertically and contacts the male mold plate 3, allowing injection to proceed through the injection connection pipe 13 inside the upper fixing plate 1. The liquid enters the injection pipe 14 through the injection connection pipe 13, is injected into the delivery pipe 15 through the injection pipe 14, and then flows into the delivery groove 16 through the delivery pipe 15. The liquid flows into the interior of the male mold core 9 through the conveying groove 16, allowing the liquid to flow to the surface of the lower mold body 24. With the cooperation of the upper mold body 19, the upper mold body 19 and the lower mold body 24 come into contact for injection molding and shaping. The coolant is conveyed through the first serpentine pipe 10 to cool and demold the female mold core 8. The coolant is conveyed through the second serpentine pipe 11 to cool and demold the male mold core 9. This enables convenient downward injection molding of the injection mold, avoids deviation during downward molding, and improves the stability of the injection mold during downward molding.

[0036] The top of each support column 17 is equipped with a lower mold body 24, and the inside of the female mold core 8 is provided with four sets of wedge-shaped push blocks 18 at equal intervals.

[0037] The upper mold body 19 is installed inside each wedge-shaped push block 18, and a spring 20 is installed at the top of each wedge-shaped push block 18.

[0038] The wedge-shaped pusher 18 has a connecting post 21 installed on the side away from the spring 20 at the top. The inside of the female mold core 8 is provided with four sets of first grooves 22 with equal spacing.

[0039] The inside of the female mold core 8 is provided with a second groove 23 on the side away from the first groove 22, and the end of the spring 20 away from the wedge-shaped push block 18 is connected to the first groove 22.

[0040] When the injection molding is completed and demolding is performed, the upper fixing plate 1 is lifted upwards, causing the upper fixing plate 1 to drive the female mold plate 2, the limiting sleeve 6, the female mold core 8, and the first serpentine channel 10 to rise. The female mold core 8 drives the wedge-shaped push block 18 and the upper mold body 19 to rise through the spring 20. Under the elastic support of the spring 20 and the support of the first groove 22, the spring 20 returns to its original position. The spring 20 drives the wedge-shaped push block 18 and the upper mold body 19 to be ejected, which facilitates the cleaning of the upper mold body 19 and the lower mold body 24. At the same time, it facilitates the elastic push and strong demolding of the injection molded product without damage, realizing the convenient cleaning of the upper and lower molds of the injection mold and facilitating the elastic push and strong demolding of the injection molded product without damage, thus improving the convenience of cleaning the upper and lower molds of the injection mold.

[0041] Working principle: When using an injection mold with a spring-loaded, force-release undercut, the upper fixing plate 1 is pressed down, causing the female mold plate 2, the limiting sleeve 6, the female mold core 8, and the first serpentine pipe 10 to descend. Under the sliding support of the limiting sleeve 6 and the limiting post 7, the female mold plate 2 descends vertically and contacts the male mold plate 3, allowing injection through the injection connection pipe 13 inside the upper fixing plate 1. Liquid enters the injection pipe 14 through the injection connection pipe 13, flows into the delivery pipe 15 through the injection pipe 14, flows into the delivery groove 16 through the delivery groove 16, and then flows into the male mold core 9. This allows the liquid to flow onto the surface of the lower mold body 24. With the cooperation of the upper mold body 19, the upper mold body 19 and the lower mold body 24 come into contact for injection molding and shaping, thus cooling the liquid. The coolant is delivered through the first serpentine pipe 10 to cool and demold the female mold core 8. The coolant is delivered through the second serpentine pipe 11 to cool and demold the male mold core 9. When the injection molding is completed, the upper fixing plate 1 is lifted upwards during demolding. This causes the upper fixing plate 1 to drive the female mold plate 2, the limiting sleeve 6, the female mold core 8, and the first serpentine pipe 10 to rise. The female mold core 8 is driven by the spring 20 to drive the wedge push block 18 and the upper mold body 19 to rise. Under the elastic support of the spring 20 and the support of the first groove 22, the spring 20 is reset. The spring 20 drives the wedge push block 18 and the upper mold body 19 to be ejected. This facilitates the cleaning of the upper mold body 19 and the lower mold body 24, and also facilitates the elastic push and strong demolding of the injection molded product without damage, thus completing the use of the injection mold.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An injection mold for forceful release of a spring block undercut, characterized in that: The system includes an upper fixed plate (1) and a female template (2). The female template (2) is installed at the bottom of the upper fixed plate (1). A lower fixed plate (5) is provided on the outside of the female template (2). A mold foot (4) is installed at the top of the lower fixed plate (5). A male template (3) is installed at the top of the mold foot (4). Four sets of equally spaced limiting sleeves (6) are installed inside the female template (2). Four sets of equally spaced limiting posts (7) are installed inside the male template (3). The limiting posts (7) slide against the limiting sleeves (6). The connection is as follows: a female mold core (8) is installed at the center of the interior of the female mold core (2); a male mold core (9) is installed at the center of the interior of the male mold core (3); a first serpentine pipe (10) is installed inside the female mold core (8) above the female mold core (8); a second serpentine pipe (11) is installed inside the male mold core (9) below the male mold core (9); four sets of equally spaced sliding columns (12) are installed inside the mold foot (4); and an injection connection pipe (13) is installed at the top of the upper fixing plate (1).

2. The injection mold for forceful release and undercutting of a spring block according to claim 1, characterized in that: An injection tube (14) is installed inside the upper fixing plate (1), and the injection tube (14) extends through the upper fixing plate (1) to its outside.

3. The injection mold for forced release and undercut of a spring block according to claim 2, characterized in that: The top end of the injection molding tube (14) is connected to the injection molding connecting pipe (13), and the bottom end of the injection molding tube (14) is equipped with a delivery pipe (15).

4. The injection mold for forceful release and undercutting of a spring block according to claim 3, characterized in that: The male mold core (9) has two sets of conveying grooves (16) inside, and four sets of support columns (17) with equal spacing are provided on the side of the male mold core (9) away from the conveying grooves (16).

5. The injection mold for forced release and undercut of a spring block according to claim 4, characterized in that: The top of each support column (17) is equipped with a lower mold body (24), and the interior of the female mold core (8) is provided with four sets of wedge-shaped push blocks (18) at equal intervals.

6. The injection mold for forced release and undercutting of a spring block according to claim 5, characterized in that: The upper mold body (19) is installed inside each of the wedge-shaped push blocks (18), and a spring (20) is installed at the top of each of the wedge-shaped push blocks (18).

7. The injection mold for forceful release of the spring block undercut according to claim 6, characterized in that: The wedge-shaped pusher (18) has a connecting post (21) installed on the side away from the spring (20) at the top. The interior of the female mold core (8) is provided with four sets of first grooves (22) at equal intervals.

8. The injection mold for forceful release and undercutting of a spring block according to claim 7, characterized in that: The inner side of the female mold core (8) away from the first groove (22) is provided with a second groove (23), and the end of the spring (20) away from the wedge-shaped push block (18) is connected to the first groove (22).

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