Secondary ejection die-casting die

Abstract

The utility model discloses a secondary ejection die-casting die, and belongs to the technical field of die-casting die devices. The secondary ejection die-casting die comprises a lower die body and an upper die body, a base is arranged at the bottom of the lower die body, an electric telescopic rod is arranged at the bottom of the inner side of the base, a tray is fixedly connected to the output end of the electric telescopic rod, and an auxiliary pushing device is arranged on the surface of the tray and comprises a telescopic rod. The bottoms of the telescopic rods are fixedly connected to the top surface of the tray, first air pressure telescopic rods are arranged on the surfaces of the two sides of the bottom of the pressing plate, and second air pressure telescopic rods are arranged on the surfaces of the sides, away from the center of the pressing plate, of the first air pressure telescopic rods. And after the first air bag at the top of the pressing plate collides and extrudes the top of the inner side of the base, air pressure in the first air bag enters the hollow rod through the air pipe, the soft capsule at the top of the hollow rod is expanded, and the effect of large-area contact ejection of the workpiece is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting mold devices, in particular to a secondary ejection die-casting mold. Background Art

[0002] A die-casting mold is a tool used to manufacture die-casting parts, usually consisting of an upper mold and a lower mold. The die-casting mold is formed by injecting molten metal into the mold cavity and solidifying it to finally obtain a casting of the desired shape and size; the die-casting mold is usually made of high-strength alloy steel or engineering plastics, with high strength, high hardness and wear resistance.

[0003] A secondary ejection die-casting mold is disclosed in Chinese patent CN 214977661 U authorized and announced on May 29, 2021, which includes a bottom plate, the upper surface of the bottom plate is fixedly connected to a support column, the upper surface of the support column is fixedly connected to a support plate, the upper surface of the support plate is fixedly connected to a fixed mold, the upper surface of the fixed mold is fitted with a movable mold, the upper surface of the fixed mold is provided with a cavity, the bottom of the inner wall of the cavity is fitted with a core, and the upper surface of the bottom plate is fixedly connected with a hollow block. The utility model is provided with a transverse tube, a second vertical tube, a first retaining ring, a slider, a first ejection column, a first air hole, a second vertical tube, a second retaining ring, a second ejection column and a second air hole. When the ejection column is used to contact the workpiece in the above application document, due to the small contact area between the ejection column and the workpiece, the ejection force is relatively concentrated, which is easy to cause damage to the surface of the workpiece, and it is difficult to clean up the impurities remaining inside after the processing is completed. Utility Model Content

[0004] In order to solve the problem of contact area between the ejector column and the workpiece in the prior art, the utility model proposes a secondary ejection die-casting mold, which can use an air bag to squeeze the inner top of the bottom plate when the top surface of the pressure plate collides with the inner top of the base to help the workpiece fall off.

[0005] A secondary ejection die-casting mold, comprising a lower mold and an upper mold, wherein a base is arranged at the bottom of the lower mold, an electric telescopic rod is arranged at the inner bottom of the base, and an output end of the electric telescopic rod is fixedly connected to a tray;

[0006] The surface of the tray is provided with an auxiliary pushing device, and the auxiliary pushing device includes a telescopic rod, the bottom of the telescopic rod is fixedly connected to the top surface of the tray, the top of the telescopic rod is fixedly connected to a pressure plate, the side surface of the pressure plate away from the center is penetrated by and slidably connected with a support rod, the bottom two side surfaces of the pressure plate are provided with a pneumatic telescopic rod 1, the side surface of the pneumatic telescopic rod 1 away from the center of the pressure plate is provided with a pneumatic telescopic rod 2, the top center of the pressure plate is fixedly connected with an airbag 1, the side of the airbag 1 is provided with a hollow rod, and the top of the hollow rod is penetrated by and fixedly connected with a soft capsule.

[0007] Furthermore, an auxiliary cleaning device is provided on the top surface of the tray, and the auxiliary cleaning device includes a push rod, the bottom of the push rod is fixedly connected to the top surface of the tray, a circular groove is provided on the top of the push rod, the surface of the circular groove is opened on the bottom side surface of the lower mold, the inner wall of the circular groove is fixedly connected to airbag three, and the surface of the airbag three is penetrated and fixedly connected with a catheter.

[0008] Furthermore, airbag 2 is provided at the bottom of the pressing plate, and the bottom of the airbag 2 is fixedly connected to the top surface of the pallet. By helping to reduce the impact force when the pressing plate retracts, when the pressing plate needs to retract after ejecting the workpiece, airbag 2 will provide support and cushioning through the top surface of the pallet, reducing the impact force generated when the pressing plate retracts, thereby protecting the stability of the equipment and mold and extending their service life.

[0009] Furthermore, the surfaces of the support rod and the hollow rod are penetrated and slidably connected to the inner walls of the base and the lower mold. Through the close fit between the support rod and the hollow rod and the base and the lower mold, the shaking or deviation of the pressure plate during movement is avoided, thereby ensuring the accuracy and stability of workpiece ejection.

[0010] Furthermore, the pneumatic telescopic rod 1 and the pneumatic telescopic rod 2 are penetrated and fixedly connected by a pneumatic tube, and the airbag 1 and the hollow rod are penetrated and fixedly connected by a pneumatic tube, so that the transmission and control of gas pressure can be achieved, thereby adjusting the length of the pneumatic telescopic rod 1 and the pneumatic telescopic rod 2, and controlling the air pressure between the airbag 1 and the hollow rod.

[0011] Furthermore, the surface of the conduit passes through and is fixedly connected to the inner wall of the lower mold, and a dustproof net is provided on the surface of one end of the conduit away from the airbag three. The dustproof net effectively prevents dust, impurities and other substances in the working groove of the lower mold from entering the interior of the conduit, thereby maintaining the clean state of the conduit, preventing pollution and blockage, and helping to maintain the normal operation of the system.

[0012] The difference from the prior art is that the beneficial effects of this application are:

[0013] (1) The secondary ejection die-casting mold achieves the effect of large-area contact ejection of the workpiece by the airbag 1 on the top of the pressure plate colliding and squeezing with the top of the inner side of the base, and the air pressure inside the airbag 1 enters the hollow rod through the air pipe to expand the soft capsule on the top of the hollow rod.

[0014] (2) The secondary ejection die-casting mold squeezes the airbag three through the ejector rod, so that the air pressure inside the airbag three is introduced into the working groove of the lower mold through the conduit, so as to achieve the effect of cleaning the inside after the processing is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0016] Figure 1 It is a schematic diagram of the three-dimensional first-view structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional cross-section structure of the utility model from the first viewing angle;

[0018] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model from a second viewing angle;

[0019] Figure 4 It is a schematic diagram of the enlarged structure at the second viewing angle A of the three-dimensional cross-section of the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model from a third viewing angle;

[0021] Figure 6 It is a schematic diagram of the enlarged structure of the utility model at the third viewing angle B of the three-dimensional cross-section.

[0022] In the figure:

[0023] 100, base; 200, lower mold; 300, upper mold;

[0024] 400, auxiliary push device; 401, pressing plate; 402, pneumatic telescopic rod 2; 403, pneumatic telescopic rod 1; 404, telescopic rod; 405, airbag 2; 406, supporting rod; 407, hollow rod; 408, soft capsule; 409, airbag 1;

[0025] 500, auxiliary cleaning device; 501, ejector rod; 502, airbag three; 503, guide tube; 504, dustproof net; 505, round groove;

[0026] 600, electric telescopic rod; 700, pallet. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application are described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0029] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0030] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0031] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] Embodiment 1

[0034] See also Figure 1-Figure 6 As shown in the figure, a secondary ejection die-casting mold includes a lower mold 200 and an upper mold 300. A base 100 is provided at the bottom of the lower mold 200. An electric telescopic rod 600 is provided at the inner bottom of the base 100. The output end of the electric telescopic rod 600 is fixedly connected to a tray 700.

[0035] The surface of the pallet 700 is provided with an auxiliary pushing device 400, and the auxiliary pushing device 400 includes a telescopic rod 404, the bottom of the telescopic rod 404 is fixedly connected to the top surface of the pallet 700, and the top of the telescopic rod 404 is fixedly connected to the pressing plate 401, and the bottom of the pressing plate 401 is provided with an air bag 2 405, and the bottom of the air bag 2 405 is fixedly connected to the top surface of the pallet 700, by helping to reduce the impact force of the pressing plate 401 when it retracts. When the pressing plate 401 needs to retract after completing the ejection of the workpiece, the air bag 2 405 will provide support and cushioning through the top surface of the pallet 700, reducing the impact force generated when the pressing plate 401 retracts, thereby protecting the stability of the equipment and the mold and extending their service life. A side surface of the pressing plate 401 away from the center is penetrated and slidably connected with a support rod 406, and the surfaces of the support rod 406 and the hollow rod 407 are penetrated and slidably connected to the inner wall of the base 100 and the lower mold 200. 07 is closely matched with the base 100 and the lower mold 200, thereby avoiding the shaking or deviation of the pressing plate 401 during the movement, ensuring the accuracy and stability of the workpiece ejection. The bottom two sides of the pressing plate 401 are provided with a pneumatic telescopic rod 1 403, and the side surface of the pneumatic telescopic rod 1 403 away from the center of the pressing plate 401 is provided with a pneumatic telescopic rod 2 402. The top center of the pressing plate 401 is fixedly connected with an air bag 1 409, and the pneumatic telescopic rod 1 403 and the pneumatic telescopic rod The two air pressure tubes 402 are penetrated and fixedly connected with each other by a pneumatic tube, and the air bag 1 409 and the hollow rod 407 are penetrated and fixedly connected with each other by a pneumatic tube, so that the transmission and control of gas pressure can be realized, thereby adjusting the length of the pneumatic telescopic rod 1 403 and the pneumatic telescopic rod 2 402, and controlling the air pressure between the air bag 1 409 and the hollow rod 407. A hollow rod 407 is arranged on the side of the air bag 1 409, and a soft capsule 408 is penetrated and fixedly connected with the top of the hollow rod 407.

[0036] When in use, the equipment first introduces the material from the upper mold 300 into the lower mold 200 during processing, and then performs processing. When the equipment completes the processing, the electric telescopic rod 600 on the inner side of the base 100 is extended to push the top tray 700 to move upward. When the tray 700 moves upward, the surface of the support rod 406 moves upward inside the lower mold 200, and its top end pushes the object out of the lower mold 200. When the tray 700 moves upward, the top of the pneumatic telescopic rod 2 402 on its two side surfaces fits against the top of the inner side of the base 100 to collide and squeeze. After the pneumatic telescopic rod 2 402 retracts, the air pressure is transmitted to the pneumatic telescopic rod 1 403 through the air pipe through the pneumatic telescopic rod 2 402, so that the pneumatic telescopic rod 1 403 is extended to hold the pressing plate 401 to move upward. Here, the bottom of the pressing plate 401 The top of the pressing plate 401 is connected to the tray 700 by a telescopic rod 404, and the top of the pressing plate 401 is positioned and moved by a supporting rod 406. The hollow rod 407 on the top of the pressing plate 401 will eject the workpiece between the lower mold 200 and the upper mold 300, so that the workpiece is loosened on the lower mold 200. At the same time, when the top surface of the pressing plate 401 collides with the inner top of the base 100, the top center of the pressing plate 401 is squeezed with the inner top of the base plate 100 by an airbag 409. When the airbag 409 is squeezed, the air pressure inside the airbag 409 is transmitted to the hollow tube 407 through the air pipe, and the soft capsule 408 on the top of the hollow tube 407 is inflated to push the workpiece out again over a large area to make it fall off. It is explained here that when the pressing plate 401 retracts, the airbag 2 405 on the top of the tray 700 is used to help reduce the impact force when the pressing plate 401 retracts.

[0037] At the same time, in order to clean the inside of the device after use, please refer to Figure 1-Figure 6 As shown in the figure, an auxiliary cleaning device 500 is provided on the top surface of the tray 700. The auxiliary cleaning device 500 includes a push rod 501. The bottom of the push rod 501 is fixedly connected to the top surface of the tray 700. A circular groove 505 is provided on the top of the push rod 501. The surface of the circular groove 505 is opened on the bottom side surface of the lower mold 200. The inner wall of the circular groove 505 is fixedly connected with an air bag three 502. The surface of the air bag three 502 passes through and is fixedly connected with a conduit 503. The surface of the conduit 503 passes through and is fixedly connected to the inner wall of the lower mold 200. A dustproof net 504 is provided on the surface of one end of the conduit 503 away from the air bag three 502. The dustproof net 504 is effectively prevented from entering the inside of the conduit 503 in the working groove of the lower mold 200 through the setting of the dustproof net 504, thereby maintaining the clean state of the conduit, preventing pollution and blockage, and helping to maintain the normal operation of the system.

[0038] When in use, the equipment is opened to eject the workpiece. First, the ejector rod 501 is connected to the front and rear tops of the tray 700, which will move up synchronously. The top of the ejector rod 501 and the air bag three 502 on the top of the base 100 are squeezed to make the air pressure inside the air bag three 502 enter the working groove of the lower mold 200 through the conduit 503, and the residue inside is blown clean. It is explained here that the surface of the air pipe 503 runs through the inner wall of the base 100 and the lower mold 200, and a dustproof net 504 is set at the outlet of the air pipe 503. The dustproof net 504 is used to prevent the dust in the working groove of the lower mold 200 from being sucked back into the conduit 503.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A secondary ejection die-casting mold, comprising a lower mold (200) and an upper mold (300), wherein a base (100) is disposed at the bottom of the lower mold (200), an electric telescopic rod (600) is disposed at the inner bottom of the base (100), and a tray (700) is fixedly connected to the output end of the electric telescopic rod (600); Features: The surface of the tray (700) is provided with an auxiliary pushing device (400), and the auxiliary pushing device (400) includes a telescopic rod (404), the bottom of the telescopic rod (404) is fixedly connected to the top surface of the tray (700), the top of the telescopic rod (404) is fixedly connected to a pressing plate (401), a side surface of the pressing plate (401) away from the center is penetrated and slidably connected with a support rod (406), the bottom two side surfaces of the pressing plate (401) are provided with a pneumatic telescopic rod 1 (403), the side surface of the pneumatic telescopic rod 1 (403) away from the center of the pressing plate (401) is provided with a pneumatic telescopic rod 2 (402), the top center of the pressing plate (401) is fixedly connected with an air bag 1 (409), the side of the air bag 1 (409) is provided with a hollow rod (407), and the top of the hollow rod (407) is penetrated and fixedly connected with a soft capsule (408).

2. The secondary ejection die casting mold according to claim 1, characterized in that: The surfaces of the support rod (406) and the hollow rod (407) penetrate through and are slidably connected to the inner walls of the base (100) and the lower mold (200).

3. The secondary ejection die-casting mold according to claim 1, characterized in that: The pneumatic telescopic rod 1 (403) and the pneumatic telescopic rod 2 (402) are mutually penetrated and fixedly connected by a pneumatic tube, and the air bag 1 (409) and the hollow rod (407) are mutually penetrated and fixedly connected by a pneumatic tube.

4. The secondary ejection die-casting mold according to claim 1, characterized in that: The bottom of the pressing plate (401) is provided with a second airbag (405), and the bottom of the second airbag (405) is fixedly connected to the top surface of the tray (700).

5. The secondary ejection die-casting mold according to claim 1, characterized in that: The top surface of the tray (700) is provided with an auxiliary cleaning device (500), and the auxiliary cleaning device (500) includes a push rod (501), the bottom of the push rod (501) is fixedly connected to the top surface of the tray (700), and the top of the push rod (501) is provided with a circular groove (505), the surface of the circular groove (505) is opened on the bottom side surface of the lower mold (200), the inner wall of the circular groove (505) is fixedly connected with an air bag three (502), and the surface of the air bag three (502) is penetrated and fixedly connected with a catheter (503).

6. The secondary ejection die casting mold according to claim 5, characterized in that: The surface of the conduit (503) penetrates through and is fixedly connected to the inner wall of the lower mold (200), and a dustproof net (504) is provided on the surface of one end of the conduit (503) away from the airbag three (502).

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