Quick ejection mechanism based on die-casting die

Abstract

The invention relates to the technical field of die-casting dies, in particular to a die-casting die-based rapid ejection mechanism which comprises a lower die, a fixing groove and a guide groove are formed in the side face of the lower die, the guide groove is located in the top of the fixing groove, an ultrasonic generator is fixedly connected into the fixing groove, and a connecting wire is fixedly connected to the side face of the ultrasonic generator. The tail end of the connecting wire is fixedly connected with a sound wave generating head, the sound wave generating head extends into the guide groove and is clamped with the guide groove, the top of the lower mold is provided with a mounting plate, the bottom of the mounting plate is fixedly connected with an upper mold and a heat dissipation plate, and the heat dissipation plate is located on the side face of the upper mold; through cooperative use of the ultrasonic generator, the sound wave generating head, the heat dissipation plate, the upper mold and the lower mold, when the ultrasonic generator is started, the sound wave generating head is close to the mold groove, and sound wave vibration can be generated on the mold groove. In the process, the adhesive force between the mold and the mold cavity is reduced by utilizing ultrasonic waves, so that the mold is easy to loosen and take out.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting molds, and specifically to a rapid ejection mechanism based on a die-casting mold. Background Art

[0002] Die-casting mold is a method of casting liquid die forging, a process completed on a special die-casting forging machine. Its basic process is: the molten metal is first cast into the mold cavity at low or high speed. The mold has a movable cavity surface, which is pressurized and forged during the cooling process of the molten metal, eliminating the shrinkage cavity and porosity defects of the blank, and also making the internal structure of the blank reach the broken grains in the forged state.

[0003] In the prior art, such as: CN219648666U, an ejection mechanism of a die-casting mold. The ejection mechanism of this die-casting mold can dissipate heat and cool down the automotive parts ejected from the lower mold through the set cooling mechanism, quickly cooling them to a suitable temperature, facilitating the operator to take them out of the lower mold and improving the die-casting efficiency.

[0004] However, there are still certain deficiencies in the use of this ejection mechanism: During the processing, due to the die-casting mold bearing a large amount of pressure, especially after rapid cooling, the formed parts will be tightly stuck in the mold grooves. Just relying on the ejector rod to push the ejector cylinder often encounters great resistance. In addition, the ejector rod may also be deformed or have stripped threads, which reduces its use efficiency.

[0005] During the processing, the bottom of the lower mold is prone to unevenness. Since the bottom of the mold groove cannot be effectively leveled, the sealing performance between the upper and lower molds is reduced during die-casting. Summary of the Invention

[0006] The purpose of the present invention is to provide a rapid ejection mechanism based on a die-casting mold to solve the problems proposed in the above background art, that is, during the processing, the ejector rod may also be deformed or have stripped threads, which reduces its use efficiency; the formed parts will be stuck in the mold, and only relying on the ejector rod to eject will encounter great frictional resistance and is prone to uneven force on the parts, causing deformation.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: A rapid ejection mechanism based on a die-casting mold, including a lower mold. Fixed slots and guide slots are respectively formed on the side surface of the lower mold. The guide slot is located at the top of the fixed slot. An ultrasonic generator is fixedly connected in the fixed slot. A connecting wire is fixedly connected to the side surface of the ultrasonic generator. The end of the connecting wire is fixedly connected to a sound wave generating head. The sound wave generating head extends into the guide slot and is clamped with the guide slot. An installation plate is arranged on the top of the lower mold. An upper mold and a heat dissipation plate are respectively fixedly connected to the bottom of the installation plate. The heat dissipation plate is located on the side of the upper mold.

[0008] As a preferred solution of the present invention, mold slots, sealing slots, top plate slots and positioning slots are respectively formed on the top of the upper mold. The mold slots, sealing slots, top plate slots and positioning slots are communicated with each other. A cylinder is fixedly connected in the positioning slot. A top plate is fixedly connected to the top of the cylinder. The top plate is located in the top plate slot.

[0009] As a preferred solution of the present invention, a telescopic column is fixedly connected to the top of the lower mold. The top of the telescopic column is fixedly connected to the installation plate. A pouring port is formed on the top of the installation plate. A sealing plate is clamped in the pouring port.

[0010] As a preferred solution of the present invention, the upper mold is opposite to the position of the mold slot. The upper mold extends into the mold slot. The heat dissipation plate extends into the sealing slot.

[0011] As a preferred solution of the present invention, the guide slot is arranged adjacent to the side wall of the mold slot. The sound wave generating head is located on the side of the mold slot.

[0012] As a preferred solution of the present invention, four telescopic columns are provided. The four telescopic columns are respectively located at the top corners of the lower mold.

[0013] As a preferred solution of the present invention, the top areas of the lower mold and the installation plate are the same. Chamfers are formed at the side corners of the lower mold and the installation plate.

[0014] As a preferred solution of the present invention, the top plate is located at the middle position of the mold slot. The top plate is flush with the bottom of the mold slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, through the combined use of an ultrasonic generator, a sound wave generating head, a heat dissipation plate, an upper mold and a lower mold, when the ultrasonic generator is started and the sound wave generating head is close to the mold cavity, sound wave vibration will be generated on the mold cavity. This process uses ultrasonic waves to reduce the adhesion force between the mold and the mold cavity, so that the mold is easy to loosen and remove. The heat dissipation plate extends into the sealing slot, which not only realizes the effective sealing of the mold cavity, but also has a heat dissipation function, significantly improving its use efficiency.

[0016] 2. In the present invention, by setting the combined use of a cylinder, a top plate, a top plate groove, a telescopic column and a positioning groove, and using ultrasonic technology to loosen the mold in the mold groove, then starting the cylinder, the mold can be easily pushed out through the top plate. Since the cylinder is embedded in the positioning groove and the top plate is located in the top plate groove, the bottom in the mold groove becomes very flat, which significantly improves the quality of the formed product. In addition, the setting of the telescopic column enhances the stability between the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the opening structure of the mounting plate of the present invention; Figure 3 is a schematic diagram of the internal structure in the fixing groove of the present invention; Figure 4 is a schematic diagram of the exploded structure of the top of the lower mold of the present invention.

[0018] In the figure: 1, lower mold; 2, mounting plate; 3, telescopic column; 4, pouring port; 5, ultrasonic generator; 6, connecting wire; 7, heat dissipation plate; 8, upper mold; 9, fixing groove; 10, acoustic wave generating head; 11, guiding groove; 12, sealing groove; 13, mold groove; 14, top plate groove; 15, positioning groove; 16, cylinder; 17, top plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment, please refer to Figures 1 - 4 , the present invention provides a technical solution: A rapid ejection mechanism based on a die-casting mold, including a lower mold 1. Fixed grooves 9 and guide grooves 11 are respectively formed on the side of the lower mold 1. The guide groove 11 is located at the top of the fixed groove 9. An ultrasonic generator 5 is fixedly connected in the fixed groove 9. A connecting wire 6 is fixedly connected to the side of the ultrasonic generator 5. The end of the connecting wire 6 is fixedly connected to a sound wave generating head 10. The sound wave generating head 10 extends into the guide groove 11 and is clamped with the guide groove 11. An installation plate 2 is arranged on the top of the lower mold 1. A upper mold 8 and a heat dissipation plate 7 are respectively fixedly connected to the bottom of the installation plate 2. The heat dissipation plate 7 is located on the side of the upper mold 8. Mold grooves 13, sealing grooves 12, top plate grooves 14 and positioning grooves 15 are respectively formed on the top of the upper mold 8. The mold grooves 13, sealing grooves 12, top plate grooves 14 and positioning grooves 15 are interconnected. A cylinder 16 is fixedly connected in the positioning groove 15. The top of the cylinder 16 is fixedly connected to a top plate 17. The top plate 17 is located in the top plate groove 14.

[0021] Among them, after starting the ultrasonic generator 5, the sound wave generating head 10 will perform sound wave vibration on the mold groove 13. The ultrasonic wave can reduce the adhesion ability of the mold in the mold groove 13, making it loose and facilitating the removal of the mold. Among them, the ejection of the die-casting mold is realized by driving the top plate through an ejection oil cylinder, and the top plate pushes the ejector pin (ejector rod).

[0022] In this embodiment, according to Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a telescopic column 3 is fixedly connected to the top of the lower mold 1. The top of the telescopic column 3 is fixedly connected to the installation plate 2. A pouring port 4 is formed on the top of the installation plate 2. A sealing plate is clamped at the pouring port 4. The upper mold 8 is opposite to the position of the mold groove 13. The upper mold 8 extends into the mold groove 13. The heat dissipation plate 7 extends into the sealing groove 12. The guide groove 11 is adjacent to the side wall of the mold groove 13. The sound wave generating head 10 is located on the side of the mold groove 13. Four telescopic columns 3 are provided. The four telescopic columns 3 are respectively located at the top corners of the lower mold 1. The top areas of the lower mold 1 and the installation plate 2 are the same. Chamfers are formed at the side corners of the lower mold 1 and the installation plate 2. The top plate 17 is located at the middle position of the mold groove 13. The top plate 17 is flush with the bottom of the mold groove 13.

[0023] Among them, after starting the cylinder 16, the mold can be easily pushed out through the top plate 17. Since the cylinder 16 is located in the positioning groove 15 and the top plate 17 is located in the top plate groove 14, the bottom of the mold groove 13 is relatively flat, improving the quality after molding.

[0024] Workflow of the present invention: When the quick ejection mechanism based on the die-casting mold designed by this solution is in operation, first check whether the device is in normal use. After installing the die-casting equipment on the top of the mounting plate 2, pour the casting liquid into the mold cavity 13 through the pouring port 4, and then seal the pouring port 4. Through the die-casting mounting plate 2, the upper mold 8 performs die-casting on the mold cavity 13 at the same time. Meanwhile, the heat dissipation plate 7 extends into the sealing groove 12. The heat dissipation plate 7 can not only seal the mold cavity 13 but also perform heat dissipation work. When the die-casting is completed, start the ultrasonic generator 5. Since the acoustic wave generating head 10 is close to the mold cavity 13, after starting the ultrasonic generator 5, the acoustic wave generating head 10 will perform acoustic wave vibration on the mold cavity 13. The ultrasonic wave can reduce the adhesion ability of the mold in the mold cavity 13, making it loose and facilitating the removal of the mold. After the ultrasonic wave loosens the mold in the mold cavity 13, after starting the cylinder 16, the mold can be easily pushed out through the top plate 17. Since the cylinder 16 is located in the positioning groove 15 and the top plate 17 is located in the top plate groove 14, the bottom of the mold cavity 13 is relatively flat, improving the quality after molding. Among them, the telescopic column 3 improves the stability between the upper mold and the lower mold 1.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid ejection mechanism based on a die-casting mold, comprising a lower mold (1), characterized in that: The sides of the lower die (1) are respectively provided with a fixing groove (9) and a guiding groove (11). The guiding groove (11) is located at the top of the fixing groove (9). An ultrasonic generator (5) is fixedly connected in the fixing groove (9). A connecting wire (6) is fixedly connected to the side of the ultrasonic generator (5). The end of the connecting wire (6) is fixedly connected to a sound wave generating head (10). The sound wave generating head (10) extends into the guiding groove (11) and is clamped with the guiding groove (11). An installation plate (2) is arranged on the top of the lower die (1). A upper die (8) and a heat dissipation plate (7) are respectively fixedly connected to the bottom of the installation plate (2). The heat dissipation plate (7) is located on the side of the upper die (8).

2. The quick ejection mechanism based on a die-casting mold according to claim 1, characterized in that: The top of the upper die (8) is respectively provided with a die groove (13), a sealing groove (12), a top plate groove (14) and a positioning groove (15). The die groove (13), the sealing groove (12), the top plate groove (14) and the positioning groove (15) are communicated with each other. A cylinder (16) is fixedly connected in the positioning groove (15). The top of the cylinder (16) is fixedly connected to a top plate (17). The top plate (17) is located in the top plate groove (14).

3. The rapid ejection mechanism based on a die-casting mold according to claim 1, wherein: A telescopic column (3) is fixedly connected to the top of the lower die (1). The top of the telescopic column (3) is fixedly connected to the installation plate (2). A pouring port (4) is arranged on the top of the installation plate (2). A sealing plate is clamped at the pouring port (4).

4. A rapid ejection mechanism based on a die-casting mold according to claim 1, characterized in that: The upper die (8) is opposite to the die groove (13) in position. The upper die (8) extends into the die groove (13). The heat dissipation plate (7) extends into the sealing groove (12).

5. A rapid ejection mechanism based on a die-casting mold according to claim 1, characterized in that: The guiding groove (11) is arranged adjacent to the side wall of the die groove (13). The sound wave generating head (10) is located on the side of the die groove (13).

6. The rapid ejection mechanism based on a die-casting mold according to claim 3, characterized in that: Four telescopic columns (3) are provided. The four telescopic columns (3) are respectively located at the top corners of the lower die (1).

7. A rapid ejection mechanism based on a die-casting mold according to claim 1, characterized in that: The top areas of the lower die (1) and the installation plate (2) are the same. Chamfers are arranged at the side corners of the lower die (1) and the installation plate (2).

8. A rapid ejection mechanism based on a die-casting mold according to claim 2, characterized in that: The top plate (17) is located at the middle position of the die groove (13). The top plate (17) is flush with the bottom of the die groove (13).

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