CN221659979U - A large slider ejector demoulding mechanism - Google Patents

Abstract

The utility model discloses a large slider ejector demoulding mechanism, including a lower mold base, the upper surface of the lower mold base is movably connected to the upper mold base, both sides of the lower surface of the lower mold base are fixedly connected to a base, the bottom of the inner side of the base is movably connected to a slider, and the middle of the upper surface of the slider is fixedly connected to a screw sleeve. The large slider ejector demoulding mechanism, through the arrangement of the slider, ejector, fixed block, connecting block, guide groove and support arm, the ejector moves with the movement of the slider to eject the product and realize the demoulding function. When the upper mold base and the lower mold base are molded, the support arm rotates inside the guide groove through the guide block with the top as the center of the circle, driving one end of the connecting block to press the fixed block downward, so that the fixed block drives the slider to move downward, ensuring that the slider is reset in place, avoiding the situation of mold collision when the mold is closed, and has a wide range of applications, pure mechanical operation, not easy to damage, ensuring the smoothness of later production, and improving safety performance.

Description

A large slider ejector demoulding mechanism

Technical Field

The utility model relates to the technical field of demoulding mechanisms, in particular to a large slider ejector demoulding mechanism.

Background Art

Moulds are various moulds and tools used in industrial production to obtain the required products by methods such as injection molding, blow molding, extrusion, die casting or forging, smelting and stamping. In short, moulds are tools used to make moulded objects. This tool is composed of various parts, and different moulds are composed of different parts. The shape of the object is mainly processed by changing the physical state of the moulded material. Injection moulds usually use an injection molding machine to inject plastic into the mould, and the ejector is used for demolding.

After searching, Chinese patent publication (announcement) number CN209999620U discloses a slider ejector mechanism for an automobile injection mold, including a fixed mold plate, a guide column, a movable mold plate, a movable mold base, a push plate, an ejection fixed plate, a fixed block, a push rod, an ejector and a slider, a movable mold plate, a cavity, and a guide column, wherein the guide column is fixedly mounted on the movable mold plate, a movable mold pad is arranged on one side of the movable mold plate, the movable mold pad is fixedly mounted on the movable mold base, a push plate is arranged between the two movable mold bases, and an ejection fixed plate is arranged on one side of the push plate. The utility model is a slider ejector mechanism for an automobile injection mold, which plays a role in quickly ejecting the material formed inside the mold by arranging a push plate, an ejector and a slider, especially a slider is connected to one side of the ejector, so that the contact surface between the slider and the raw material formed inside the mold is larger, and demolding is easy, which solves the problem that the existing ejector contact surface is small, which easily affects the quality of injection molded products and easily causes mold damage.

Although the above patent is easy to demold, for deep-rib products, the slider and the ejector will be displaced greatly after being separated from the product, and the ejector body is relatively long. The slider cannot be completely reset when the mold is closed, which causes the upper mold base to directly hit the ejector and hinder the mold closing. Therefore, it is necessary to design a large slider and ejector demolding mechanism to solve the above problem.

Utility Model Content

The main purpose of the utility model is to provide a large slider ejector demoulding mechanism, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical solution adopted by the utility model is:

A large slider ejector demoulding mechanism comprises a lower die base, the upper surface of the lower die base is movably connected to the upper die base, both sides of the lower surface of the lower die base are fixedly connected to the base, the bottom of the inner side of the base is movably connected to the slider, the middle of the upper surface of the slider is fixedly connected to the screw sleeve, and the internal thread of the screw sleeve is connected to the ejector; the front and back sides of the slider are fixedly connected to the fixed block, the front and back sides of the lower die base are rotatably connected to the connecting block, the outer surface of the connecting block is provided with a guide groove, the inside of the guide groove is slidably connected to the guide block, the outer surface of the guide block is fixedly connected to the support arm, and the support arm is rotatably connected to the upper die base.

In order to achieve the effect of facilitating injection molding, as a large slider ejector demoulding mechanism of the utility model, a molding cavity is opened in the middle of the upper surface of the lower mold base, and a through hole is opened in the inner bottom wall of the molding cavity.

In order to achieve the effect of enhancing the movement stability of the slider, as a large slider ejector demolding mechanism of the utility model, guide pillars are fixedly connected to the four corners of the upper surface of the slider, a limiting hole is opened on the side of the guide pillar inside the upper mold base, and a spring is sleeved on the outer surface of the guide pillar.

In order to achieve the effect of facilitating mold closing and positioning, as a large slider ejector demoulding mechanism of the utility model, an injection hole is opened in the middle of the upper surface of the upper mold base, and limiting columns are fixedly connected to the four corners of the lower surface of the upper mold base.

In order to achieve the effect of avoiding hard contact between the upper and lower molds, as a large slider ejector demoulding mechanism of the utility model, a rubber pad is fixedly connected to the upper surface of the lower mold base.

In order to achieve the effect of rapid cooling, as a large slider ejector demoulding mechanism of the utility model, a cooling cavity is opened on the inner side surface of the lower mold base, and a cooling pipe is fixedly connected to the interior of the cooling cavity.

In order to facilitate the delivery of coolant, as a large slider ejector demoulding mechanism of the utility model, one end of the cooling tube is fixedly connected to a delivery tube, one end of the delivery tube is fixedly connected to a water pump, and the lower surface of the water pump is fixedly connected to a water tank.

In order to facilitate the circulation of the coolant, as a large slider ejector demoulding mechanism of the utility model, the inner top wall of the water tank is fixedly connected to a refrigerator, and the other end of the cooling pipe is fixedly connected to a circulation pipe.

Compared with the prior art, the utility model has the following beneficial effects:

1. In the utility model, through the arrangement of the slider, the ejector, the fixed block, the connecting block, the guide groove and the support arm, the ejector moves with the movement of the slider to eject the product and realize the demoulding function. When the upper mold base and the lower mold base are molded, the support arm rotates inside the guide groove through the guide block with the top as the center of the circle, driving one end of the connecting block to press the fixed block downward, so that the fixed block drives the slider to move downward, ensuring that the slider is reset in place and avoiding the situation of mold collision when the mold is closed. It has a wide range of applications, is purely mechanically operated, is not easy to be damaged, ensures the smoothness of the later production, and improves the safety performance.

2. In the utility model, through the arrangement of guide posts, limit posts, limit holes and rubber pads, when the slider moves, the guide posts slide inside the limit holes, making the slider move more accurately and preventing displacement during movement, thereby improving the accuracy of displacement; when the upper mold base is closed, the limit posts can be inserted into the limit holes, making the mold more stable and accurate when closed, preventing the mold from being offset, and avoiding mold collision caused by mold misalignment, thereby enhancing the accuracy of mold injection; the rubber pads prevent the upper mold base from having hard contact with the lower mold base when closed, thereby avoiding damage to the mold and effectively extending the service life of the mold.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the main structure of an embodiment of the utility model;

FIG2 is a schematic cross-sectional plan view of an embodiment of the present utility model;

FIG3 is a schematic diagram of the structure of an upper die base according to an embodiment of the utility model;

FIG4 is a schematic diagram of the structure of the lower die base according to an embodiment of the utility model;

FIG. 5 is a schematic diagram of the installation of the base structure of an embodiment of the utility model.

In the figure: 1. lower die base; 2. upper die base; 3. base; 4. slider; 5. screw sleeve; 6. ejector pin; 7. fixing block; 8. connecting block; 9. guide groove; 10. guide block; 11. support arm; 12. molding cavity; 13. through hole; 14. guide column; 15. limiting hole; 16. spring; 17. injection hole; 18. limiting column; 19. rubber pad; 20. cooling cavity; 21. cooling pipe; 22. delivery pipe; 23. water pump; 24. water tank; 25. refrigerator; 26. circulation pipe.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Example

As shown in Figures 1-5, a large slider and ejector demolding mechanism includes a lower mold base 1, the upper surface of the lower mold base 1 is movably connected to the upper mold base 2, both sides of the lower surface of the lower mold base 1 are fixedly connected to the base 3, the bottom of the inner side of the base 3 is movably connected to the slider 4, the middle of the upper surface of the slider 4 is fixedly connected to the screw sleeve 5, and the internal thread of the screw sleeve 5 is connected to the ejector 6; the front and back sides of the slider 4 are fixedly connected to the fixed block 7, the front and back sides of the lower mold base 1 are rotatably connected to the connecting block 8, the outer surface of the connecting block 8 is provided with a guide groove 9, the inside of the guide groove 9 is slidably connected to the guide block 10, the outer surface of the guide block 10 is fixedly connected to the support arm 11, and the support arm 11 is rotatably connected to the upper mold base 2.

During specific use, through the arrangement of the slider 4, ejector pin 6, fixed block 7, connecting block 8, guide groove 9 and support arm 11, multiple ejector pins 6 are threadedly connected to the inside of the screw sleeve 5, which is convenient for timely replacement when damaged, saving costs. The ejector pin 6 moves up and down following the movement of the slider 4, thereby ejecting the product, realizing the demoulding function, and making the mold ejection action smoother. When the upper mold base 2 and the lower mold base 1 are molded, the support arm 11 rotates inside the guide groove 9 through the guide block 10 with the top as the center of the circle, driving one end of the connecting block 8 to press the fixed block 7 downward, so that the fixed block 7 drives the slider 4 to move downward, ensuring that the slider 4 is reset in place, avoiding the situation of mold collision when the mold is closed, with a wide range of applications, purely mechanical operation, not easy to be damaged, ensuring the smoothness of the later production, and improving the safety performance.

In this embodiment, a molding cavity 12 is formed in the middle of the upper surface of the lower mold base 1 , and a through hole 13 is formed in the inner bottom wall of the molding cavity 12 .

During specific use, the molding cavity 12 is provided to ensure product molding, and a plurality of through holes 13 are provided on the inner bottom wall of the molding cavity 12 to facilitate the passage of the ejector pin 6 .

In this embodiment, guide pillars 14 are fixedly connected to the four corners of the upper surface of the slider 4 , a limiting hole 15 is provided on one side of the upper die seat 2 close to the guide pillars 14 , and a spring 16 is sleeved on the outer surface of the guide pillars 14 .

During specific use, through the setting of the guide column 14, when the slider 4 moves, the guide column 14 slides inside the limit hole 15, so that the slider 4 is more precise when moving, and the displacement is prevented from occurring during the movement, thereby improving the accuracy of the displacement. The horizontal driving force is increased by the spring 16, making it easier for the slider 4 to be reset.

In this embodiment, an injection hole 17 is opened in the middle of the upper surface of the upper mold base 2 , and limiting columns 18 are fixedly connected to the four corners of the lower surface of the upper mold base 2 .

During specific use, through the setting of the limiting column 18, the injection hole 17 is convenient for injection into the interior of the molding cavity 12. When the upper mold base 2 is closed, the limiting column 18 can be inserted into the interior of the limiting hole 15, so that the mold is more stable and accurate when closed, preventing the mold from shifting, and avoiding mold collision caused by mold misalignment, thereby enhancing the accuracy of the mold during injection.

In this embodiment, a rubber pad 19 is fixedly connected to the upper surface of the lower die base 1 .

During specific use, by setting the rubber pad 19, the rubber pad 19 prevents the upper mold base 2 from having hard contact with the lower mold base 1 when the upper mold base 2 is closed, thereby avoiding damage to the mold and effectively extending the service life of the mold.

In this embodiment, a cooling cavity 20 is formed on the inner side surface of the lower die base 1 , and a cooling pipe 21 is fixedly connected to the interior of the cooling cavity 20 .

During specific use, by setting the cooling tube 21, a low-temperature coolant flows inside the cooling tube 21, so that the interior of the cooling chamber 20 can be kept at a low temperature, thereby cooling the finished product, reducing the clamping force, helping to increase the demoulding speed, and improving work efficiency, thereby performing rapid molding.

In this embodiment, one end of the cooling pipe 21 is fixedly connected to the delivery pipe 22 , one end of the delivery pipe 22 is fixedly connected to the water pump 23 , and the lower surface of the water pump 23 is fixedly connected to the water tank 24 .

During specific use, through the provision of the delivery pipe 22 , cooling liquid is added to the interior of the water tank 24 for cooling the mold during molding, and the water pump 23 delivers the cooled cooling liquid through the delivery pipe 22 .

In this embodiment, a refrigerator 25 is fixedly connected to the inner top wall of the water tank 24 , and a circulation pipe 26 is fixedly connected to the other end of the cooling pipe 21 .

During specific use, through the setting of the refrigerator 25 and the circulation pipe 26, the refrigerator 25 can reduce the temperature of the coolant inside the water tank 24, thereby achieving a rapid cooling effect. The circulation pipe 26 allows the coolant inside the cooling pipe 21 to circulate continuously, thereby enhancing the cooling effect and reducing the time it takes for the coolant to heat up.

Working principle: first close the upper mold base 2 and the lower mold base 1, insert the limit column 18 into the limit hole 15, so that the mold is more stable and accurate when closed, and the rubber pad 19 prevents the two from having hard contact. The material is injected into the molding cavity 12 through the injection hole 17. The refrigerator 25 reduces the temperature of the coolant in the water tank 24. The water pump 23 transports the coolant after cooling through the delivery pipe 22. The cooling pipe 21 cools the finished product. The circulation pipe 26 makes the coolant in the cooling pipe 21 It can circulate continuously. After the product is formed, the upper mold base 2 is opened, the ejector rod of the injection molding machine pushes the slider 4, and the ejector pin 6 ejects the product. When the upper mold base 2 and the lower mold base 1 are closed, the support arm 11 rotates inside the guide groove 9 through the guide block 10 with the top as the center of the circle, driving one end of the connecting block 8 to press the fixed block 7 downward, so that the fixed block 7 drives the slider 4 to move downward, ensuring that the slider 4 is reset in place to avoid the situation of mold collision when closing the mold. The spring 16 increases the horizontal driving force, making it more convenient for the slider 4 to reset.

The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims (8)

1. A large slider ejector demoulding mechanism, comprising a lower die base (1), characterized in that: the upper surface of the lower die base (1) is movably connected to an upper die base (2), both sides of the lower surface of the lower die base (1) are fixedly connected to a base (3), the bottom of the inner side of the base (3) is movably connected to a slider (4), the middle of the upper surface of the slider (4) is fixedly connected to a screw sleeve (5), and the inner thread of the screw sleeve (5) is connected to an ejector pin (6); the front and back sides of the slider (4) are fixedly connected to a fixed block (7), the front and back sides of the lower die base (1) are rotatably connected to a connecting block (8), the outer surface of the connecting block (8) is provided with a guide groove (9), the inside of the guide groove (9) is slidably connected to a guide block (10), the outer surface of the guide block (10) is fixedly connected to a support arm (11), and the support arm (11) is rotatably connected to the upper die base (2). 2. A large slider ejector demoulding mechanism according to claim 1, characterized in that: a molding cavity (12) is provided in the middle of the upper surface of the lower mold base (1), and a through hole (13) is provided in the inner bottom wall of the molding cavity (12). 3. A large slider ejector demoulding mechanism according to claim 1, characterized in that: guide pillars (14) are fixedly connected to the four corners of the upper surface of the slider (4), a limiting hole (15) is provided on the side of the upper mold base (2) close to the guide pillar (14), and a spring (16) is sleeved on the outer surface of the guide pillar (14). 4. A large slider ejector demoulding mechanism according to claim 1, characterized in that: an injection hole (17) is opened in the middle of the upper surface of the upper mold base (2), and limiting columns (18) are fixedly connected at the four corners of the lower surface of the upper mold base (2). 5. A large slider ejector demoulding mechanism according to claim 1, characterized in that a rubber pad (19) is fixedly connected to the upper surface of the lower mold base (1). 6. A large slider ejector demoulding mechanism according to claim 1, characterized in that: a cooling cavity (20) is provided on the inner side surface of the lower mold base (1), and a cooling pipe (21) is fixedly connected to the interior of the cooling cavity (20). 7. A large slider ejector demoulding mechanism according to claim 6, characterized in that: one end of the cooling pipe (21) is fixedly connected to a delivery pipe (22), one end of the delivery pipe (22) is fixedly connected to a water pump (23), and the lower surface of the water pump (23) is fixedly connected to a water tank (24). 8. A large slider ejector demoulding mechanism according to claim 7, characterized in that: a refrigerator (25) is fixedly connected to the inner top wall of the water tank (24), and a circulation pipe (26) is fixedly connected to the other end of the cooling pipe (21).