Anti-ejection structure for demoulding of die-casting die

By designing a die-casting mold release anti-ejection structure including hydraulic cylinder, hydraulic rod, mobile seat and guide plate, the problem of ejection of die-casting parts during the release process is solved, and the safety of parts and the production pass rate are improved.

CN223043623UActive Publication Date: 2025-07-01KUNSHAN HONGJUNTAI PRECISION MOLD CO LTD
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Patent Information

Application Number
CN202422053894.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-23
Publication Date
2025-07-01
Estimated Expiration
2034-08-23

AI Technical Summary

Technical Problem

During the release of die-cast parts, the parts may pop out and fall, resulting in damage and reduced production pass rate.

Method used

A die-cast mold release anti-ejection structure is designed, including mounting plates, hydraulic cylinders, shells, hydraulic rods, mobile seats, protective plates, bar plates and guide plates. Through the expansion and contraction of the hydraulic rod, the handle and the moving seat are moved, the spring is extended, the bar plate rotates, and the guide plate is tilted to prevent the die-cast parts from popping out.

Benefits of technology

It effectively prevents die-cast parts from popping out during the demolding process, improving the safety of parts and production pass rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an anti-ejection structure for die-casting die demolding, and belongs to the technical field of die casting protection. Comprising a mounting plate and a guide plate, a hydraulic cylinder is mounted in the mounting plate in a penetrating mode, a shell is fixedly mounted on one side of the mounting plate, a second movable template is arranged on the inner wall of the shell, a circular groove is formed in the position, close to the upper end, of one side of the shell, and a hydraulic rod is fixedly mounted in the circular groove; a U-shaped groove is formed in the position, close to the lower end, of one side of the shell, the hydraulic rod is started to drive the handle to move in the direction away from the shell, meanwhile, the spring gradually stretches to restore compression deformation, and under the limiting cooperation effect of the rotating shaft, the strip-shaped plate rotates with the rotating shaft as the axis to further drive the guide plate to incline; the die-casting parts can incline along with the guide plate at the same time, the die-casting parts can be taken conveniently, the effect of preventing the die-casting parts from popping up is achieved, and the yield of die-casting part production is increased.
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Description

Technical Field

[0001] The utility model relates to the technical field of protection of die-casting parts, and particularly relates to an anti-ejection structure for die-casting mold demolding. Background Technique

[0002] Die-casting parts are metal parts made by die-casting process. Die-casting is a process of injecting molten metal into a mold and forming it through high pressure and cooling. Die-casting parts have the advantages of compact structure, precise dimensions, high surface finish, etc., so they are widely used in the fields of automobiles, motorcycles, electronics, communications, aviation, aerospace, etc. The basic principle of die-casting process is to pour molten metal into a pre-designed mold, and then use high pressure to make the metal fill every corner of the mold, so as to obtain the required part shape. The design and manufacture of the mold are very important links in the die-casting process, which determine the quality and precision of die-casting parts. In the process of mold design, factors such as the geometric shape, dimensional accuracy, and surface quality of the parts need to be considered to ensure that die-casting parts can meet the use requirements.

[0003] However, in the prior art, ejector pins are mostly used to eject die-casting parts during the demolding process. During the ejection process, the die-casting parts may be ejected and fall to the ground when the ejector pins eject, which is likely to cause damage to the die-casting parts and reduce the qualified rate of die-casting part production. Therefore, the present application provides an anti-ejection structure for die-casting mold demolding to meet the requirements. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an anti-ejection structure for die-casting mold demolding to solve the problem that during the ejection process, the die-casting parts may be ejected and fall to the ground when the ejector pins eject, which is likely to cause damage to the die-casting parts and reduce the qualified rate of die-casting part production as mentioned in the above background technique.

[0005] To solve the above technical problem, the utility model provides the following technical solutions:

[0006] A die-casting mold demoulding anti-ejection structure, including a mounting plate and a guiding plate. A hydraulic cylinder is installed through the interior of the mounting plate. A housing is fixedly installed on one side of the mounting plate. A second moving template is arranged on the inner wall of the housing. A circular groove is opened at a position near the upper end on one side of the housing. A hydraulic rod is fixedly installed inside the circular groove. A U-shaped groove is opened at a position near the lower end on one side of the housing. A moving seat is arranged inside the U-shaped groove. Two protective plates are fixedly connected to both sides of the upper end of the moving seat. A first groove is opened at the upper ends of the two protective plates. Square holes are penetrated and opened at positions near both sides of the upper end of the moving seat. Strip-shaped plates are arranged inside the two square holes. Rotating shafts are movably connected inside the two strip-shaped plates. The strip-shaped plates are movably connected to the moving seat through the rotating shafts. Springs are fixedly connected to the lower ends of the two strip-shaped plates. The telescopic end of the hydraulic rod is fixedly connected to a handle. A convex end of the handle is fixedly connected to a first moving template.

[0007] Preferably, one side of the second moving template is fixed to the telescopic end of the hydraulic cylinder.

[0008] Preferably, a second groove is opened at the upper end of the guiding plate.

[0009] Preferably, one side of the first moving template is fixed to the upper end of the moving seat.

[0010] Preferably, the other ends of the two springs are both fixed to the upper end of the moving seat.

[0011] Preferably, one side of the guiding plate is fixedly installed to the upper ends of the two strip-shaped plates.

[0012] Preferably, the two protective plates are both arranged inside the U-shaped groove.

[0013] Preferably, the outer wall of the first moving template can be attached to the inner wall of the housing.

[0014] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0015] In the above solution, by starting the hydraulic rod, the handle is driven to move away from the housing. At the same time, the spring gradually elongates to restore the compressive deformation. Under the limiting cooperation of the rotating shaft, the strip-shaped plate rotates around the rotating shaft as the axis, further driving the guiding plate to tilt. The die-casting part will tilt along with the guiding plate, which is convenient for taking the die-casting part and plays a role in preventing the die-casting part from ejecting, increasing the qualified rate of die-casting part production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present disclosure and, together with the specification, are further used to explain the principles of the present disclosure and enable those skilled in the relevant art to implement and use the present disclosure.

[0017] Figure 1 It is a schematic three-dimensional structure diagram of an anti-ejection structure for die casting mold demolding;

[0018] Figure 2 It is a partial structural sectional view of an anti-ejection structure for die casting mold demolding;

[0019] Figure 3 It is a schematic diagram of the outer shell of an anti-ejection structure for die casting mold demolding;

[0020] Figure 4 It is a schematic diagram of the guide plate of an anti-ejection structure for die casting mold demolding;

[0021] Figure 5 It is Figure 4 an enlarged structural schematic diagram of part A in

[0022] [Reference numerals]

[0023] 1, hydraulic cylinder; 2, mounting plate; 3, outer shell; 4, handle; 5, U-shaped groove; 6, hydraulic rod; 7, rotating shaft; 8, circular groove; 9, protective plate; 10, first groove; 11, guide plate; 12, second groove; 13, moving seat; 14, spring; 15, strip-shaped plate; 16, square hole; 17, first moving template; 18, second moving template.

[0024] As shown in the figure, in order to clearly implement the structure of the embodiments of the present utility model, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present utility model to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications made are still included within the scope of the appended claims. Detailed implementation manners

[0025] The following will describe in detail an anti-ejection structure for die casting mold demolding provided by the present utility model in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also implement them in other alternative ways; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present utility model.

[0026] It should be noted that in the specification, references to "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. indicate that the described embodiments may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes that particular feature, structure, or characteristic. Additionally, when a particular feature, structure, or characteristic is described in connection with an embodiment, implementing such feature, structure, or characteristic in connection with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0027] Generally, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, depending at least in part on the context, can alternatively allow for the existence of other factors that may not be explicitly described.

[0028] As Figures 1-5 shown, a die-casting mold demoulding anti-ejection structure includes a mounting plate 2 and a guide plate 11. A hydraulic cylinder 1 is installed through the interior of the mounting plate 2. A housing 3 is fixedly installed on one side of the mounting plate 2. A second moving template 18 is provided on the inner wall of the housing 3. A circular groove 8 is opened at a position near the upper end on one side of the housing 3. A hydraulic rod 6 is fixedly installed inside the circular groove 8. A U-shaped groove 5 is opened at a position near the lower end on one side of the housing 3. A moving seat 13 is arranged inside the U-shaped groove 5. Two protective plates 9 are fixedly connected to both sides of the upper end of the moving seat 13. First grooves 10 are opened at the upper ends of the two protective plates 9. Square holes 16 are penetrated and opened at positions near both sides of the upper end of the moving seat 13. Strip-shaped plates 15 are arranged inside the two square holes 16. Rotating shafts 7 are movably connected inside the two strip-shaped plates 15. The strip-shaped plates 15 are movably connected to the moving seat 13 through the rotating shafts 7. Springs 14 are fixedly connected to the lower ends of the two strip-shaped plates 15. The telescopic end of the hydraulic rod 6 is fixedly connected to a handle 4. A convex end of the handle 4 is fixedly connected to a first moving template 17. By starting the hydraulic rod 6, the handle 4 is driven to move away from the housing 3, further driving the moving seat 13 and the protective plates 9 to be slowly withdrawn from the U-shaped groove 5. At this time, the springs 14 gradually elongate to recover the compressive deformation. Under the limiting and cooperating action of the rotating shafts 7, the strip-shaped plates 15 rotate around the rotating shafts 7 as the axis, further driving the guide plate 11 to incline. The die-casting parts will incline simultaneously with the guide plate 11. Because an anti-slip strip is provided at the bottom end of one side of the guide plate 11, the die-casting parts can be well received, and through the first grooves 10 and the second grooves 12, it can facilitate the taking of the die-casting parts, thereby preventing the die-casting parts from popping out and increasing the qualified rate of die-casting part production.

[0029] As Figure 1 andFigure 2 As shown in the figure, one side of the second moving template 18 is fixed to the telescopic end of the hydraulic cylinder 1. A second groove 12 is opened at the upper end of the guiding plate 11. One side of the first moving template 17 is fixed to the upper end of the moving seat 13. The other ends of the two groups of springs 14 are both fixed to the upper end of the moving seat 13. One side of the guiding plate 11 is fixedly installed with the upper ends of the two groups of strip plates 15. The two groups of protective plates 9 are both arranged inside the U-shaped groove 5. The outer wall of the first moving template 17 can be attached to the inner wall of the outer shell 3. Pouring holes are correspondingly opened on the outer shell 3, the first moving template 17 and the second moving template 18. At this time, the first moving template 17 and the second moving template 18 form a sealed cavity. The die-casting liquid is poured into the outer shell 3 through the pouring hole on one side of the outer shell 3 and enters the cavity. The mounting plate 2 is fixed relative to the ground. By starting the hydraulic cylinder 1 to drive the second moving template 18 to move towards the first moving template 17, the die-casting operation can be quickly completed.

[0030] Working principle: First, the die-casting liquid is poured into the outer shell 3 through the pouring hole on one side of the outer shell 3. At this time, the first moving template 17 and the second moving template 18 form a sealed cavity. The mounting plate 2 is fixed relative to the ground. By starting the hydraulic cylinder 1 to drive the second moving template 18 to move towards the first moving template 17, the die-casting operation can be quickly completed. At this time, the first moving template 17 is located inside the outer shell 3, the moving seat 13 and the protective plate 9 are both located inside the U-shaped groove 5, and the springs 14 are all in a compressed state. After the die-cast part is formed, by starting the hydraulic rod 6, the handle 4 is driven to move away from the outer shell 3, further driving the moving seat 13 and the protective plate 9 to slowly withdraw from the U-shaped groove 5. At this time, the springs 14 gradually elongate and recover the compressive deformation. Under the limiting and matching action of the rotating shaft 7, the strip plate 15 rotates around the rotating shaft 7 as the axis, further driving the guiding plate 11 to tilt. The die-cast part will tilt along with the guiding plate 11. Because there is an anti-slip strip at the bottom end of one side of the guiding plate 11, it can well hold the die-cast part, and through the first groove 10 and the second groove 12, it can play a role in facilitating the taking of the die-cast part, thereby preventing the die-cast part from popping out and increasing the qualified rate of die-cast part production.

[0031] The present invention covers any substitutions, modifications, equivalent methods and solutions made within the essence and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without these detailed descriptions.

[0032] The above description is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A die-casting mold demoulding anti-pop-up structure, characterized in that: include: A mounting plate (2) and a guide plate (11), wherein a hydraulic cylinder (1) is installed through the interior of the mounting plate (2), a housing (3) is fixedly installed on one side of the mounting plate (2), a second movable template (18) is arranged on the inner wall of the housing (3), a circular groove (8) is provided on one side of the housing (3) near the upper end, a hydraulic rod (6) is fixedly installed inside the circular groove (8), a U-shaped groove (5) is provided on one side of the housing (3) near the lower end, a movable seat (13) is arranged inside the U-shaped groove (5), and protective plates (9) are fixedly connected to both sides of the upper end of the movable seat (13), and the two sets of protective plates (9) are fixedly connected to the movable seat (13). A first groove (10) is provided at the upper end of the guard plate (9), and a square hole (16) is provided through the upper end of the movable seat (13) and near the two sides. A strip plate (15) is provided inside the two groups of the square holes (16), and a rotating shaft (7) is movably connected inside the two groups of the strip plates (15). The strip plates (15) are movably connected to the movable seat (13) through the rotating shaft (7). The lower ends of the two groups of the strip plates (15) are fixedly connected to a spring (14), and the telescopic end of the hydraulic rod (6) is fixedly connected to a handle (4), and the raised end of the handle (4) is fixedly connected to a first movable template (17).

2. The die-casting mold demoulding anti-pop-out structure according to claim 1, characterized in that: One side of the second movable template (18) is fixed to the telescopic end of the hydraulic cylinder (1).

3. The die-casting mold demoulding anti-pop-out structure according to claim 2, characterized in that: A second groove (12) is formed at the upper end of the guide plate (11).

4. The die-casting mold demoulding anti-pop-out structure according to claim 1, characterized in that: One side of the first movable template (17) is fixed to the upper end of the movable seat (13).

5. The die-casting mold demoulding anti-pop-out structure according to claim 1, characterized in that: The other ends of the two groups of springs (14) are fixed to the upper end of the moving seat (13).

6. The die-casting mold demoulding anti-pop-out structure according to claim 1, characterized in that: One side of the guide plate (11) is fixedly mounted to the upper ends of the two groups of strip plates (15).

7. The die-casting mold demoulding anti-pop-out structure according to claim 1, characterized in that: The two groups of protection plates (9) are both arranged inside the U-shaped groove (5).

8. The die-casting mold demoulding anti-pop-out structure according to claim 1, characterized in that: The outer wall of the first movable template (17) can fit with the inner wall of the outer shell (3).