A molding die

Abstract

The present invention relates to the technical field of molds, and particularly relates to a forming mold, which includes a mold body. A plurality of feeding pipes are connected to the middle of the mold body, and at least one electromagnetic stirring device is installed on each feeding pipe. By installing the electromagnetic stirring device on the feeding pipe, the liquid material can be rotated and mixed under the action of the electromagnetic stirring device when passing through the feeding pipe, so that various components in the liquid material are mixed more evenly, which is beneficial to the forming of large products. When multiple feeding pipes are provided, it is equivalent to distributing the large product into multiple small areas. The filling pressure required for the forming of the small areas will be smaller and it is more conducive to filling, which is beneficial to the forming of large products.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and particularly to a molding die. Background Art

[0002] A mold is various molds and tools used in industrial production to obtain required products by means of injection molding, blow molding, extrusion, die casting, 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 external shape of articles by changing the physical state of the formed material.

[0003] For example, the published patent No. CN210615027U 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, in the feeding system of the mold, most of them simply convey liquid materials from the feed cylinder to the mold after mold closing through the feed pipe. In this way, it is easy for the liquid materials to be separated during the conveying process, resulting in uneven mixing of components and affecting the molding of products. Summary of the Invention

[0005] The purpose of the present invention is to provide a molding die to solve the problem that it is difficult for the mold in the prior art to fully mix liquid materials with multiple components during the feeding process, thus easily resulting in defects due to uneven mixing of material components after product molding.

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

[0007] A molding die includes a mold body, and a plurality of feed pipes are connected to the middle of the mold body, and at least one electromagnetic stirring device is installed on each feed pipe.

[0008] A further technical solution is that the mold body is connected to the feeding mechanism through a feeding pipe. The mold body includes a front mold and a rear mold that fit together. On the opposite sides of the front mold and the rear mold, a first processing part and a second processing part are respectively arranged. When the front mold and the rear mold are closed, the first processing part and the second processing part cooperate to form a product cavity and an overflow structure connected to the product cavity. One end of the feeding mechanism is connected to the product cavity, and the other end is connected to the feeding pipe outside the mold body.

[0009] A further technical solution is that the feeding mechanism includes a feeding pipe. The feeding pipes are arranged in multiple numbers and are distributed on the front mold or the rear mold. One end of the feeding pipe is connected to the first processing part or the second processing part through the feeding pipe, and the other end is connected to the barrel. The electromagnetic stirring device is an annular electromagnetic stirrer, and the annular electromagnetic stirrer is sleeved on the outer wall of the feeding pipe.

[0010] A further technical solution is that it further includes a forging mechanism, a cooling system, and a vacuum pumping system. The forging mechanism, the cooling system, and the vacuum pumping system are respectively arranged on the front mold or the rear mold.

[0011] A further technical solution is that the forging mechanism is movably connected to the front mold. The forging mechanism includes a forging driving device and a forging movable insert connected to the output end of the forging driving device. On the side of the front mold away from the rear mold, there is a forging hole connected to the first processing part. When the front mold and the rear mold are closed to process the product, the forging movable insert slides in the forging hole.

[0012] A further technical solution is that the overflow structure includes a slag pocket cavity and an exhaust cavity that are interconnected. The slag pocket cavity is connected to the product forming cavity, and the exhaust cavity is connected to the side of the rear mold or the front mold through an exhaust hole. The vacuum pumping system is connected to the exhaust hole.

[0013] A further technical solution is that several slag pocket cavities are provided, and the several slag pocket cavities are arranged around the product cavity. Several exhaust cavities are provided, and each exhaust cavity is connected to at least one slag pocket cavity.

[0014] A further technical solution is that on the side of the rear mold away from the front mold, an ejection mechanism and a mold foot are sequentially connected. The ejection mechanism is movably connected to the rear mold through an ejection rod. The ejection rod is arranged on the side of the ejection mechanism facing the rear mold. On the side of the rear mold facing the ejection mechanism, there is an ejection hole connected to the second processing part. The ejection rod slides in the ejection hole.

[0015] A further technical solution is that on the edge of the side of the rear mold facing the front mold, a guide post is provided. On the side of the front mold facing the rear mold, a guide hole matching the guide post is provided. When the front mold and the rear mold are closed, the guide post is clamped in the guide hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By installing an electromagnetic stirring device on the feeding pipe, the liquid material can be rotationally mixed under the action of the electromagnetic stirring device when passing through the feeding pipe, so that the various components in the liquid material are more evenly mixed, which is beneficial to the molding of large products. When multiple feeding pipes are provided, it is equivalent to distributing the large product into multiple small areas, and the filling pressure required for molding in the small areas will be smaller, which is more conducive to filling, and thus is beneficial to the molding of large products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is an exploded schematic view of the mold body of a molding mold of the present invention.

[0018] Figure 2 FIG. is a schematic view of the rear mold of a molding mold of the present invention.

[0019] Figure 3 FIG. is a schematic view of the connection between the annular electromagnetic stirrer and the feeding pipe of a molding mold of the present invention.

[0020] Reference numerals: 1 - mold body, 2 - front mold, 3 - rear mold, 4 - overflow structure, 5 - feeding pipe, 6 - annular electromagnetic stirrer, 7 - forging movable insert, 8 - forging hole, 9 - slag pocket cavity, 10 - exhaust cavity, 11 - exhaust hole, 12 - ejection mechanism, 13 - mold feet, 14 - ejection rod, 15 - second machining part, 16 - feeding pipe, 17 - ejection hole, 18 - guide post, 19 - guide hole, 20 - product. 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 3 The following shows an embodiment of the present invention.

[0023] Embodiment 1:

[0024] A molding mold includes a mold body 1. A plurality of feeding pipes 16 are connected to the middle of the mold body 1, and at least one electromagnetic stirring device is installed on each feeding pipe 16. By installing an electromagnetic stirring device on the feeding pipe, the liquid material can be rotationally mixed under the action of the electromagnetic stirring device when passing through the feeding pipe 16, so that the various components in the liquid material are more evenly mixed, which is beneficial to the molding of the large product 20. When multiple feeding pipes 16 are provided, it is equivalent to distributing the large product 20 into multiple small areas, and the filling pressure required for molding in the small areas will be smaller, which is more conducive to filling, and thus is beneficial to the molding of the large product 20.

[0025] The mold body 1 is connected to the feeding pipe 16 through a feeding mechanism. The mold body 1 includes a front mold 2 and a rear mold 3 that fit each other. The front mold 2 and the rear mold 3 are provided with a first processing part and a second processing part 15 on opposite sides. When the front mold 2 and the rear mold 3 are molded together, the first processing part and the second processing part 15 cooperate to form a product cavity and an overflow structure 4 connected to the product cavity. One end of the feeding mechanism is connected to the product cavity, and the other end is connected to the feeding pipe 16 on the outside of the mold body 1. By providing the front mold 2 and the rear mold 3, it is convenient to remove the product 20 from the mold body 1 by separating the front mold 2 and the rear mold 3 after the product 20 is processed. By providing an overflow structure connected to the product molding cavity, the excess material can be discharged into the overflow structure 4 when the product 20 is molded, so that the molding of the product 20 is more complete.

[0026] The feeding mechanism includes a feeding pipe 5, which is provided in multiple numbers and distributed on the front mold 2 or the rear mold 3. One end of the feeding pipe 16 is connected to the first processing part or the second processing part 15 through the feeding pipe 5, and the other end is connected to the barrel. The electromagnetic stirring device is an annular electromagnetic stirrer 6, which is sleeved on the outer wall of the feeding pipe 16. The arrangement of multiple feeding pipes 5 is also beneficial to the thermal balance of the mold body 1, and reduces the bubbles, shrinkage and other undesirable characteristics of the product 20. By providing an annular electromagnetic stirrer, the material in the feeding pipe 16 can be rotated by magnetic force, thereby achieving a uniform mixing effect. Each feeding pipe 5 is connected to a corresponding feeding pipe 16. Multiple feeding pipes 5 are evenly distributed on the front mold 2 or the rear mold 3, which is beneficial to the molding of the product 20.

[0027] A molding die also includes a forging mechanism, a cooling system and a vacuum system, and the forging mechanism, the cooling system and the vacuum system are respectively arranged on the front mold 2 or the rear mold 3. By setting up the vacuum system, the excess air in the product molding cavity can be discharged to avoid the formation of bubbles when the product 20 is molded, resulting in unqualified product 20. By setting up the forging mechanism, the material in the product molding cavity can be forged so that the material can fill the product molding cavity. By setting up the cooling system, the rapid cooling of the product 20 during molding can be accelerated, so that it can be molded quickly for easy demoulding. The cooling system can adopt conventional water circulation cooling, by setting a water circulation channel in the front mold 2 or the rear mold 3, and then connecting the water circulation channel with the external water circulation pump and the water pool, using low-temperature water to quickly cool the upper module 2 or the lower module 3, so as to achieve rapid molding of the product 20.

[0028] The forging mechanism is movably connected to the front mold 2. The forging mechanism includes a forging driving device and a forging movable insert 7 connected to the output end of the forging driving device. On the side of the front mold 2 away from the rear mold 3, there is a forging hole 8 connected to the first processing part. When the front mold 2 and the rear mold 3 are closed to process the product, the forging movable insert 7 is slidably arranged in the forging hole 8. The forging driving device can adopt conventional electric driving or starting driving, as long as it can realize the movement of the forging movable insert 7 in the forging hole 8 along the direction of the forging hole. In this way, the liquid material in the product forming cavity can be extruded by the forging movable insert 7, making the density of the liquid material greater, compressing the air holes in the product to a smaller size, and improving the strength of the product.

[0029] Embodiment 2:

[0030] On the basis of Embodiment 1, the overflow structure 4 includes a slag pocket cavity 9 and an exhaust cavity 10 that are interconnected. The slag pocket cavity 9 is connected to the product forming cavity, and the exhaust cavity 10 is connected to the side of the rear mold 3 or the front mold 2 through an exhaust hole 11, and the vacuum pumping system is connected to the exhaust hole 11. With such a setting, the air in the product forming cavity can be quickly pumped out through the vacuum pumping system and the exhaust hole 11. The vacuum pumping system can adopt a conventional vacuum pump. The suction pipe of the vacuum pump is inserted into the exhaust hole 11 through a suction needle or the like. After the front mold 2 and the rear mold 3 are closed, the vacuum pump is turned on to pump out the air in the product forming cavity, and the suction pipe is closed through a valve or the like after the pumping is completed.

[0031] A plurality of slag pocket cavities 9 are provided, and the plurality of slag pocket cavities 9 are arranged around the product cavity. A plurality of exhaust cavities 10 are provided, and each exhaust cavity 10 is connected to at least one slag pocket cavity 9. With such a setting, after the material enters the product forming cavity, the forging movable insert 7 is used to extrude the excess material, and these materials will successively enter the slag pocket cavity 9 and the exhaust cavity 10, so that the material in the product forming cavity just fills the product forming cavity. The exhaust cavity can also be used to accommodate the residual gas in the product forming cavity and the gas entering along the feed pipe 16. The cavity wall of the exhaust cavity can be set to be wavy, so as to block the flow distance of the liquid material in the exhaust cavity 10 and prevent it from entering the exhaust hole 11.

[0032] On the side of the rear mold 3 away from the front mold 2, an ejection mechanism 12 and a mold base 13 are sequentially connected. The ejection mechanism 12 is movably connected to the rear mold 3 through an ejection rod 14. The ejection rod 14 is arranged on the side of the ejection mechanism 12 facing the rear mold 3. An ejection hole 17 communicating with the second machining part 15 is arranged on the rear mold 3 and on the side facing the ejection mechanism 12. The ejection rod 14 is slidably arranged in the ejection hole 17. By providing the ejection mechanism 12 and the ejection rod 14, when demolding, the product 20 can be ejected from the second machining part 15 by the ejection rod sliding into the second machining part 15 from the ejection hole 17, thereby realizing demolding. The ejection mechanism 12 can be pneumatic or electric, as long as it can make the ejection rod 14 slide along the ejection hole 17.

[0033] Guide posts 18 are arranged on the edge of the rear mold 3 on the side facing the front mold 2, and guide holes 19 matching the guide posts 18 are arranged on the front mold 2 on the side facing the rear mold 3. When the front mold 2 and the rear mold 3 are closed, the guide posts 18 are clamped in the guide holes 19. By providing the guide posts 18 and the guide holes 19, it is convenient for the front mold 2 and the rear mold 3 to be closed.

[0034] Although the present invention has been described herein with reference to multiple illustrative embodiments of the present 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 and spirit disclosed in this application. More specifically, within the scope of the disclosure, the drawings, and the claims of this application, various variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A molding die, characterized in that: It includes a mold body (1), and a plurality of feeding pipes (16) are connected to the middle of the mold body (1), and at least one electromagnetic stirring device is installed on each feeding pipe (16); The mold body (1) is connected to the feeding pipes (16) through a feeding mechanism. The mold body (1) includes a front mold (2) and a rear mold (3) that fit together. A first processing part and a second processing part (15) are respectively arranged on opposite sides of the front mold (2) and the rear mold (3). When the front mold (2) and the rear mold (3) are closed, the first processing part and the second processing part (15) cooperate to form a product cavity and an overflow structure (4) connected to the product cavity. One end of the feeding mechanism is connected to the product cavity, and the other end is connected to the feeding pipe (16) outside the mold body (1); The electromagnetic stirring device is an annular electromagnetic stirrer (6), and the annular electromagnetic stirrer (6) is sleeved on the outer wall of the feeding pipe (16); It further includes a forging mechanism, a cooling system and a vacuum pumping system, and the forging mechanism, the cooling system and the vacuum pumping system are respectively arranged on the front mold (2) or the rear mold (3); The forging mechanism is movably connected to the front mold (2). The forging mechanism includes a forging driving device and a forging movable insert (7) connected to the output end of the forging driving device. A forging hole (8) connected to the first processing part is arranged on the side of the front mold (2) away from the rear mold (3); when the front mold (2) and the rear mold (3) are closed to process the product, the forging movable insert (7) is slidably arranged in the forging hole (8).

2. The forming mold according to claim 1, characterized in that: The feeding mechanism includes feeding pipes (5). The feeding pipes (5) are provided in plurality and are distributed on the front mold (2) or the rear mold (3). One end of the feeding pipe (16) is connected to the first processing part or the second processing part (15) through the feeding pipe (5), and the other end is connected to a barrel.

3. A molding die according to claim 1, characterized in that: The overflow structure (4) includes a slag pocket cavity (9) and an exhaust cavity (10) that are connected to each other. The slag pocket cavity (9) is connected to the product forming cavity. The exhaust cavity (10) is connected to the side surface of the rear mold (3) or the front mold (2) through an exhaust hole (11), and the vacuum pumping system is connected to the exhaust hole (11).

4. A molding die according to claim 3, characterized in that: The slag pocket cavity (9) is provided in several numbers, and several slag pocket cavities (9) are arranged around the product cavity. The exhaust cavity (10) is provided in several numbers, and each exhaust cavity (10) is connected to at least one slag pocket cavity (9).

5. A molding die according to any one of claims 1-4, characterized in that: A ejecting mechanism (12) and a mold foot (13) are sequentially connected to the side of the rear mold (3) away from the front mold (2). The ejecting mechanism (12) is movably connected to the rear mold (3) through an ejecting rod (14). The ejecting rod (14) is arranged on the side of the ejecting mechanism (12) facing the rear mold (3). A ejecting hole (17) connected to the second processing part (15) is arranged on the side of the rear mold (3) facing the ejecting mechanism (12), and the ejecting rod (14) is slidably arranged in the ejecting hole (17).

6. A molding die according to any one of claims 1-4, characterized in that: A guide post (18) is provided at the edge of the rear mold (3) facing the front mold (2), a guide hole (19) matching the guide post (18) is provided on the side of the front mold (2) facing the rear mold (3), and when the front mold (2) and the rear mold (3) are closed, the guide post (18) is clamped in the guide hole (19).

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