A mold for enhancing the strength of a product

Abstract

The present invention relates to the technical field of molds, and particularly relates to a mold for enhancing the strength of a product, which includes a mold body. A product cavity is arranged inside the mold body, and a feed port communicating with the product cavity is arranged on the surface of the mold body. It is characterized in that a solution cavity communicating with the product cavity is further arranged inside the mold body. An overflow hole is connected to the cavity wall of the product cavity, and a valve for controlling the on-off of the overflow hole is arranged inside the overflow hole. The valve controls the on-off of the overflow hole through a valve driving device. A forging mechanism is movably arranged inside the solution cavity, and the forging mechanism is used to push the liquid material inside the solution cavity to extrude towards the product cavity. Through the cooperation of the forging mechanism and the valve, the liquid material inside the product cavity generates sufficient deformation during the forming process, which is beneficial to the forging and forming of the product, and improves the strength and density of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and particularly to a mold for enhancing the strength of products. Background Art

[0002] A mold is various molds and tools used in industrial production to obtain required products by methods such as injection molding, blow molding, extrusion, die casting, or forging, smelting, stamping, etc. In short, a mold is a tool for making formed articles. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the outer shape of articles by changing the physical state of the formed material.

[0003] For example, the published patent No. CN210615027 discloses a metal mold for casting. When using the metal mold for casting, the right mold is pushed to close with the left mold by the right cylinder, and the operation is simple and convenient. The accuracy of mold closing is improved by the left guide rod and the right guide groove, and the fixing property after mold closing is improved by the connecting rod. When pouring molten metal, the liquid is conveniently introduced into the mold cavity after mold closing through the liquid inlet funnel, and the safety is relatively high and the practicability is relatively strong. It includes a base and a bottom column, and the bottom column is fixedly arranged at the bottom end of the base; it also includes a left vertical plate, a left bottom plate, a left mold, a right fixing plate, a right cylinder, a right telescopic rod, a right vertical plate, a right bottom plate, a right mold, two groups of left guide rods, two groups of right guide grooves, a liquid inlet pipe, a liquid inlet funnel, an overflow pipe, two groups of connecting rods, two groups of left fixing nuts, and two groups of right fixing nuts.

[0004] In the prior art, the processing of metal products is mostly carried out by forging or mold casting. Although the products processed by mold casting have good forming, their strength and density are difficult to compare with those of the products processed by forging. Summary of the Invention

[0005] The purpose of the present invention is to provide a mold for enhancing the strength of products, and solve the problem that it is difficult to improve the strength and density of products after molding in mold casting processing in the prior art.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A mold for enhancing the strength of products, including a mold body. A product cavity is arranged in the mold body, and a feed inlet communicating with the product cavity is arranged on the surface of the mold body. It is characterized in that a molten liquid cavity communicating with the product cavity is also arranged in the mold body. An overflow hole is connected to the cavity wall of the product cavity, and a valve for controlling the on-off of the overflow hole is arranged in the overflow hole. The valve controls the on-off of the overflow hole through a valve driving device. A forging mechanism is movably arranged in the molten liquid cavity, and the forging mechanism is used to push the liquid material in the molten liquid cavity to extrude into the product cavity.

[0008] A further technical solution is that the valve is arranged in the overflow hole through a valve passage. The valve passage is arranged on the side of the mold body and extends to communicate with the overflow hole. One end of the valve is connected to the valve driving device in the valve passage, and the other end is slidably arranged in the overflow hole along the length direction of the overflow hole. An overflow cavity is connected to the hole wall of the overflow hole through an overflow port.

[0009] A further technical solution is that the forging mechanism pushes the liquid material in the molten liquid cavity towards the product cavity through a forging movable insert. The forging mechanism includes a forging movable insert and a forging driving device. One side of the molten liquid cavity is connected to the product cavity, and the other side extends to be connected to the surface of the mold body, and a forging port is formed on the surface of the mold. One end of the forging movable insert penetrates into the molten liquid cavity from the forging port, and the other end is connected to the forging driving device.

[0010] A further technical solution is that the mold body includes a front mold and a rear mold that fit together front and back, and an ejection mechanism arranged on the rear side of the rear mold. The product cavity, the overflow cavity, the molten liquid cavity, the overflow hole, and the valve passage are all formed when the front mold and the rear mold are closed. The forging port is arranged on the rear side of the rear mold. A first ejection hole communicating with the overflow cavity is arranged on the rear side of the rear mold. A first ejection rod matching the first ejection hole is arranged on the front side of the ejection mechanism. When the ejection mechanism is assembled on the rear mold, the first ejection rod is slidably assembled in the first ejection hole.

[0011] A further technical solution is that the forging driving device is connected to the forging movable insert through a connecting rod. A communication hole penetrating through the front and rear sides is arranged on the ejection mechanism. The forging driving device is connected to the connecting rod on the rear side of the ejection mechanism, and the front end of the connecting rod passes through the communication hole and is connected to the forging movable insert.

[0012] A further technical solution is that the valve driving device is connected to the valve through a connecting block. One side of the connecting block is connected to the valve, and the other side is connected to the output shaft of the valve driving device. The valve driving device drives the output shaft through an oil cylinder, an inclined guide post, or a pressure source.

[0013] A further technical solution is that the forging driving device is fixed to the rear side of the ejection mechanism through a mounting plate. The forging driving device drives the connecting rod through an oil cylinder or a power source.

[0014] A further technical solution is that a second ejection hole penetrating through the front and rear sides is arranged on the forging movable insert. A second ejection rod matching the second ejection hole is arranged on the front side of the ejection mechanism. The product cavity and the molten liquid cavity are arranged to communicate with each other front and back. When the ejection mechanism is assembled on the rear mold, the second ejection rod is slidably assembled in the second ejection hole.

[0015] A further technical solution is that the feed port is arranged on the front side of the front mold, and the feed port is connected to the product cavity through a main runner.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: With such a setting, through the cooperation of the valve, the valve driving device and the forging mechanism with the mold body, the product can be forged during the product forming process. Before the liquid material is injected, the valve is in a closed state, closing the overflow hole. At this time, the liquid material is injected into the product cavity through the feed port until the liquid material gradually fills the molten liquid cavity and the product cavity. Then, the forging mechanism is used to push the liquid material in the molten liquid cavity towards the product cavity for extrusion, and at the same time, the valve driving device is used to open the valve to make the overflow hole unobstructed, so that the excess liquid material in the product cavity will flow out through the overflow hole until the product is finally formed. The property of forging is to generate sufficient deformation, which is beneficial to the forging and forming of the product. In this process, through the cooperation of the forging mechanism and the valve, the liquid material in the product cavity generates sufficient deformation during the forming process, which is beneficial to the forging and forming of the product, realizing casting while the product has the properties of a forged product, improving the strength, density, and heat treatment stability of the product. Generating deformation is beneficial to the consistency of the molecular structure direction of the product. It solves the problem in the prior art that the strength and density of the product cannot be improved after the mold casting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded schematic view of a mold for improving the strength of the product according to the present invention.

[0018] Figure 2 It is a schematic view of the ejection mechanism of a mold for improving the strength of the product according to the present invention.

[0019] Figure 3 It is a schematic view of the rear mold of a mold for improving the strength of the product according to the present invention.

[0020] Reference numerals: 1 - mold body, 2 - product cavity, 3 - overflow cavity, 4 - molten liquid cavity, 5 - valve, 6 - forging movable insert, 7 - valve driving device, 8 - valve passage, 9 - forging driving device, 10 - front mold, 11 - rear mold, 12 - ejection mechanism, 13 - first ejection hole, 14 - first ejection rod, 15 - connecting rod, 16 - communication hole, 17 - connecting block, 18 - output shaft, 19 - mounting plate, 20 - second ejection hole, 21 - second ejection rod, 22 - feed port, 23 - main runner, 24 - overflow hole, 25 - overflow port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] Figures 1 to 3The following shows an embodiment of the present invention.

[0023] Embodiment 1:

[0024] A mold for enhancing the strength of a product, comprising a mold body 1. A product cavity 2 is arranged inside the mold body 1. A feed port 22 communicating with the product cavity 2 is arranged on the surface of the mold body 1. It is characterized in that a molten liquid cavity 4 communicating with the product cavity 2 is further arranged inside the mold body 1. An overflow hole 24 is connected to the cavity wall of the product cavity 2. A valve 5 for controlling the on-off of the overflow hole 24 is arranged inside the overflow hole 24. The valve 5 controls the on-off of the overflow hole 24 through a valve driving device 7. A forging mechanism is movably arranged inside the molten liquid cavity 4. The forging mechanism is used to push the liquid material inside the molten liquid cavity 4 towards the product cavity 2 for extrusion.

[0025] With such a setting, through the cooperation of the valve 5, the valve driving device 7 and the forging mechanism, the mold body 1 can forge the product during the product forming process. Before the liquid material is injected, the valve 5 is in a closed state, closing the overflow hole 24. At this time, the liquid material is injected into the product cavity 2 through the feed port 22 until the liquid material gradually fills the molten liquid cavity 4 and the product cavity 2. Then, the forging mechanism is used to push the liquid material inside the molten liquid cavity 4 towards the product cavity 2, and at the same time, the valve driving device 7 is used to open the valve 5 to make the overflow hole 24 in a smooth state, so that the liquid material inside the product cavity 2 will flow out from the overflow hole 24 until the product is finally formed. The property of forging is to generate sufficient deformation, which is beneficial to the forging and forming of the product. In this process, through the cooperation of the forging mechanism and the valve 5, the liquid material inside the product cavity generates sufficient deformation during the forming process, which is beneficial to the forging and forming of the product, realizing casting while the product has the properties of a forged product, improving the product strength, density, and heat treatment stability. Generating deformation is beneficial to the consistency of the product molecular structure direction. It solves the problem in the prior art that the strength and density of the product cannot be improved after the mold casting process.

[0026] The liquid material can be a metal liquid such as aluminum liquid.

[0027] The valve 5 is arranged in the overflow hole 24 through the valve channel 8. The valve channel 8 is arranged on the side of the mold body 1 and extends to communicate with the overflow hole 24. One end of the valve 5 is connected to the valve driving device 7 in the valve channel 8, and the other end is slidably arranged in the overflow hole 24 along the length direction of the overflow hole 24. The hole wall of the overflow hole 24 is connected with an overflow cavity 3 through an overflow port 25. With such an arrangement, when injecting liquid material into the product cavity 2, the valve 5 is pushed by the valve driving device 7 from the valve channel 8 into the connection between the product cavity 2 and the overflow cavity 3, and the connection between the product cavity 2 and the overflow cavity 3 is blocked by the valve 5. In this way, during the injection process, the liquid material will only enter the melt cavity 4 and the product cavity 2. When the injection is completed and the forging step is entered, the valve 5 is opened by the valve driving device 7 to connect the product cavity 2 and the overflow cavity 3. In this way, during forging, the excess material in the product cavity 2 will enter the overflow cavity 3.

[0028] The forging mechanism pushes the liquid material in the melt cavity 4 towards the product cavity 2 through the forging movable insert 6. The forging mechanism includes the forging movable insert 6 and the forging driving device 9. One side of the melt cavity 4 is connected to the product cavity 2, and the other side extends to be connected to the surface of the mold body 1 and forms a forging port on the surface of the mold. One end of the forging movable insert 6 penetrates into the melt cavity 4 from the forging port, and the other end is connected to the forging driving device 9. With such an arrangement, the volume of the melt cavity 4 is reduced or increased by the sliding of the forging movable insert 6 in the melt cavity 4. Before injecting the liquid material, by moving the forging movable insert 6, the volume of the melt cavity 4 is increased so that the volume of the melt cavity 4 can be equal to, greater than, or less than the volume of the overflow cavity 3. In this way, during forging, by making the forging movable insert 6 squeeze towards the product cavity 2, the volume of the melt cavity 4 is gradually reduced to zero, so that all the liquid material in the melt cavity 4 can be squeezed into the product cavity 2. Thus, the forging of the product in the product cavity 2 is realized.

[0029] The mold body 1 includes a front mold 10 and a rear mold 11 that are fitted together front and back, and an ejection mechanism 12 arranged on the rear side of the rear mold 11. The product cavity 2, the overflow cavity 3, the melt cavity 4, the overflow hole 24, and the valve channel 8 are all formed when the front mold 10 and the rear mold 11 are closed. The forging port is arranged on the rear side of the rear mold 11. A first ejection hole 13 communicating with the overflow cavity 3 is arranged on the rear side of the rear mold 11. A first ejection rod 14 matching the first ejection hole 13 is arranged on the front side of the ejection mechanism 12. When the ejection mechanism 12 is assembled on the rear mold 11, the first ejection rod 14 is slidably assembled in the first ejection hole 13. By arranging the front mold 10 and the rear mold 11, it is convenient to process the product and remove the product by demolding through the closing and opening of the front mold 10 and the rear mold 11. By arranging the ejection mechanism 12, the overflow block generated in the overflow cavity 3 can be ejected by the first ejection rod 14 on the ejection mechanism 12, which is convenient for continuing to process the product next time.

[0030] Embodiment 2:

[0031] The forging drive device 9 is connected to the forging movable insert 6 through the connecting rod 15. A communication hole 16 penetrating through the front and rear sides is provided on the ejection mechanism 12. The forging drive device 9 is connected to the rear side of the ejection mechanism 12 and the connecting rod 15. The front end of the connecting rod 15 passes through the communication hole 16 and is connected to the forging movable insert 6. With such a setting, it is convenient to drive the forging movable insert 6 to slide in the molten liquid cavity 4 through the connecting rod 15, so as to forge the product in the product cavity 2 through the forging movable insert 6.

[0032] The valve drive device 7 is connected to the valve 5 through the connecting block 17. One side of the connecting block 17 is connected to the valve 5, and the other side is connected to the output shaft 18 of the valve drive device 7. The valve drive device 7 drives the output shaft 18 through an oil cylinder, an inclined guide post or a pressure source. It is only necessary to drive the output shaft 18 to drive the valve 5 to move along the length direction of the overflow hole 24. The valve drive device 7 can be an oil cylinder, which can drive the output shaft to perform a linear motion by using the oil cylinder, so that the valve 5 moves in the valve passage 8. The valve drive device 7 can use an inclined guide post to drive the output shaft 18 to perform a linear motion. An inclined hole can be provided on the side of the output shaft, and at the same time, the inclined guide post passes through the inclined hole on the side of the output shaft, so that the output shaft can be driven to perform a linear motion by the movement of the inclined guide post in the inclined hole. The valve drive device 7 can use a pressure source to realize the linear motion of the output shaft. The pressure source can be hydraulic or pneumatic, as long as it can drive the output shaft to perform a linear motion.

[0033] The forging drive device 9 is fixed to the rear side of the ejection mechanism 12 through the mounting plate 19. The forging drive device 9 drives the connecting rod 15 through an oil cylinder or a power source. The forging drive device 9 can drive the connecting rod 15 to perform a linear motion through an oil cylinder, so as to drive the forging movable insert 6 to move in the molten liquid cavity 4. The forging drive device 9 can drive the connecting rod 15 to move by electric or pneumatic means.

[0034] A second ejection hole 20 penetrating through the front and rear sides is provided on the forging movable insert 6. A second ejection rod 21 matching the second ejection hole 20 is provided on the front side of the ejection mechanism 12. The product cavity 2 and the molten liquid cavity 4 are arranged in a front-rear communication manner. When the ejection mechanism 12 is assembled on the rear mold 11, the second ejection rod 21 is slidably assembled in the second ejection hole 20. By providing the second ejection hole 20 on the forging movable insert 6, the formed product in the product cavity 2 can be ejected and demolded through the second ejection rod 21 on the ejection mechanism 12. The molten liquid cavity 4 and the product cavity 2 can be two cavities communicating with each other on the same straight line, which is convenient for the second ejection rod 21 to enter the product cavity 2 to eject the product.

[0035] The feed inlet 22 is arranged on the front side of the front mold 10, and the feed inlet 22 is communicated with the product cavity 2 through the main runner 23. By arranging the feed inlet 22, it is convenient to add liquid materials into the product cavity 2.

[0036] Guide posts and guide holes for mutual connection are arranged on the front mold 10, the rear mold 11 and the ejection mechanism 12, which is convenient for mold closing.

[0037] Although the present invention has been described herein with reference to a number of illustrative embodiments of the invention, it should be understood that those skilled in the art can design many other modifications and embodiments that will fall within the scope of the principles of the present application and the spirit thereof. More specifically, within the scope of the present application, the drawings and the claims, various variations and improvements can be made to the components and / or the layout of the subject combination layout. In addition to the variations and improvements made to the components and / or the layout, other uses will also be apparent to those skilled in the art.

Claims

1. A mold for enhancing the strength of a product, comprising a mold body (1), a product cavity (2) is arranged inside the mold body (1), and a feed inlet (22) communicating with the product cavity (2) is arranged on the surface of the mold body (1), characterized in that, A molten liquid cavity (4) communicating with the product cavity (2) is further arranged inside the mold body (1). An overflow hole (24) is connected to the cavity wall of the product cavity (2). A valve (5) for controlling the on-off of the overflow hole (24) is arranged inside the overflow hole (24). The valve (5) controls the on-off of the overflow hole (24) through a valve driving device (7). A forging mechanism is movably arranged inside the molten liquid cavity (4), and the forging mechanism is used for pushing the liquid material inside the molten liquid cavity (4) to extrude towards the product cavity (2). The valve (5) is arranged inside the overflow hole (24) through a valve channel (8). The valve channel (8) is arranged on the side surface of the mold body (1) and extends to communicate with the overflow hole (24). One end of the valve (5) is connected to the valve driving device (7) in the valve channel (8), and the other end is slidably arranged inside the overflow hole (24) along the length direction of the overflow hole (24). An overflow cavity (3) is connected to the hole wall of the overflow hole (24) through an overflow port (25).

2. The mold for enhancing the strength of a product according to claim 1, characterized in that: The forging mechanism pushes the liquid material inside the molten liquid cavity (4) to extrude towards the product cavity (2) through a forging movable insert (6). The forging mechanism includes a forging movable insert (6) and a forging driving device (9). One side of the molten liquid cavity (4) is connected to the product cavity (2), and the other side extends to be connected to the surface of the mold body (1) and forms a forging port on the surface of the mold. One end of the forging movable insert (6) penetrates into the molten liquid cavity (4) from the forging port, and the other end is connected to the forging driving device (9).

3. The mold for enhancing the strength of a product according to claim 2, wherein: The mold body (1) includes a front mold (10) and a rear mold (11) which are fitted together front and back, and an ejection mechanism (12) arranged on the rear side of the rear mold (11). The product cavity (2), the overflow cavity (3), the molten liquid cavity (4), the overflow hole (24), and the valve channel (8) are all formed when the front mold (10) and the rear mold (11) are closed. The forging port is arranged on the rear side of the rear mold (11). A first ejection hole (13) communicating with the overflow cavity (3) is arranged on the rear side of the rear mold (11). A first ejection rod (14) matching the first ejection hole (13) is arranged on the front side of the ejection mechanism (12). When the ejection mechanism (12) is assembled on the rear mold (11), the first ejection rod (14) is slidably assembled inside the first ejection hole (13).

4. The mold for enhancing the strength of a product according to claim 3, characterized in that: The forging driving device (9) is connected to the forging movable insert (6) through a connecting rod (15). A communication hole (16) penetrating through the front and rear sides is arranged on the ejection mechanism (12). The forging driving device (9) is connected to the connecting rod (15) on the rear side of the ejection mechanism (12), and the front end of the connecting rod (15) passes through the communication hole (16) and is connected to the forging movable insert (6).

5. The mold for enhancing the strength of a product according to claim 3, wherein: The valve driving device (7) is connected to the valve (5) through a connecting block (17). One side of the connecting block (17) is connected to the valve (5), and the other side is connected to the output shaft (18) of the valve driving device (7). The valve driving device (7) drives the output shaft (18) through an oil cylinder, an inclined guide post or a pressure source.

6. A mold for enhancing the strength of a product according to claim 4, characterized in that: The forging driving device (9) is fixed to the rear side of the ejector mechanism (12) through a mounting plate (19). The forging driving device (9) drives the connecting rod (15) through an oil cylinder or a power source.

7. A mold for enhancing the strength of a product according to any one of claims 3-6, characterized in that: A second ejector hole (20) penetrating through the front and rear sides is provided on the forging movable insert (6). A second ejector rod (21) matching the second ejector hole (20) is provided on the front side of the ejector mechanism (12). The product cavity (2) and the molten liquid cavity (4) are arranged to communicate with each other front and rear. When the ejector mechanism (12) is assembled on the rear mold (11), the second ejector rod (21) is slidably assembled in the second ejector hole (20).

8. A mold for enhancing the strength of a product according to any one of claims 3-6, characterized in that: The feed port (22) is provided on the front side of the front mold (10). The feed port (22) is connected to the product cavity (2) through a main runner (23).

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