Vacuum die-casting die

Abstract

The utility model relates to a vacuum die-casting die which comprises a first die-casting die, a second die-casting die is arranged on one side of the first die-casting die, the top end of the first die-casting die is fixedly connected with a supporting base, and the top end of the supporting base is fixedly connected with a vacuum pump. The lead screw drives the movable support to move up and down, the movable support drives the trigger plate to extrude the knocking rods, the knocking rods knock the transmission plate, vibration generated when the knocking rods knock the transmission plate is transmitted to the mold body, and when materials enter the mold body, the vibration can be transmitted to the materials. On one hand, the vibration of the transmission plate is transmitted to the mold body, air in the cavity can be removed, it is ensured that metal can fill each corner of the mold body more completely and more evenly, and on the other hand, oxide skin and gas in molten metal can be broken, so that formation of air holes and oxides is reduced, and the quality and internal integrity of a casting are improved.

Description

Technical Field

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

[0002] Vacuum die-casting molds are special molds used in vacuum die-casting processes. Die-casting is a process for manufacturing metal parts. Molten metal is quickly pressed into the mold cavity through high pressure, and the gas in the mold cavity is extracted by vacuuming, thereby reducing defects such as pores and pinholes in the casting and improving the quality and precision of the casting. However, some existing die-casting molds still have some problems. During die-casting, some die-casting molds take too long to extract the air inside the mold, and when there are too many bubbles inside the mold, the vacuum extraction of gas inside the mold is not effective, which can easily make the die-cast objects have too many pores, resulting in a low yield rate. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In order to solve the above problems in the prior art, the utility model provides a vacuum die-casting mold. By setting a knocking mechanism, it is solved that during die-casting, it takes too long to extract the air inside the mold, and when there are too many bubbles inside the mold, the vacuum extraction of the gas in the mold is not effective.

[0005] (II) Technical solution

[0006] In order to achieve the above purpose, the main technical solutions adopted by the utility model are:

[0007] A vacuum die-casting mold, comprising a die-casting mold 1, a die-casting mold 2 is arranged on one side of the die-casting mold 1, a support base is fixedly connected to the top of the die-casting mold 1, a vacuum pump is fixedly connected to the top of the support base, an injection pipe is fixedly connected to the inner side of the die-casting mold 2, a mold body is fixedly connected to the center of one side wall of the die-casting mold 2, two knocking mechanisms are arranged on one side of the die-casting mold 1, the two knocking mechanisms include an installation groove, a limit box, a transmission plate, a knocking rod, a limit collar, a movable support, a motor, a screw rod, a trigger plate, a connecting ring, a limit groove and a reset spring, the two installation grooves are both opened on both sides of one side wall of the die-casting mold, and the two installation grooves are fixedly connected to the inner side of the die-casting mold 2. A transmission plate is fixedly connected to one side of the top of the mounting groove, a motor is fixedly connected to the top of the two mounting grooves, a screw is fixedly connected to the output end of the two motors, a movable support is threadedly connected to the middle of the two screws, a trigger plate is fixedly connected to one end of the two movable supports, a limit box is fixedly connected to the inner wall of the two mounting grooves, a plurality of limit grooves are provided in the two limit boxes, a limit ring is fixedly connected to one side wall of the plurality of limit grooves, a knock rod is slidably connected to the inner wall of the plurality of limit grooves, a connecting ring is fixedly sleeved in the middle of the plurality of knock rods, and a reset spring is sleeved in the middle of the plurality of knock rods;

[0008] A filtering mechanism is provided at the bottom of the vacuum pump, and the filtering mechanism includes a protective mesh plate, an installation box, a filter plate, a branch pipe, a transmission pipe and a relay pipe. The two protective mesh plates are snap-connected to the two sides of the mold body, the backs of the two protective mesh plates are fixedly connected to the installation box, the interiors of the two installation boxes are snap-connected with multiple filter plates, one side wall of the two installation boxes is fixedly connected to the branch pipe, one end of the two branch pipes is fixedly connected to the relay pipe, and the top of the relay pipe is fixedly connected to the transmission pipe.

[0009] The top ends of the two screw rods are rotatably connected to the top ends of the inner walls of the two installation grooves respectively.

[0010] One side wall of the two movable supports is slidably connected to one side of the inner walls of the two installation grooves respectively.

[0011] One ends of the plurality of return springs are respectively fixedly connected to one side wall of the plurality of connection rings, and the other ends of the plurality of return springs are respectively fixedly connected to one side wall of the limiting collar.

[0012] The two transmission plates are respectively attached to the two side walls of the mold body.

[0013] The transmission pipe is threadedly connected to the air inlet of the vacuum pump, and the air outlet of the vacuum pump is fixedly connected to an exhaust pipe.

[0014] (III) Beneficial effects

[0015] The beneficial effect of the utility model is that through the knocking mechanism, the user can use the electric push rod and other equipment to push the die-casting mold 2 to fit the die-casting mold 1 during die-casting, and then feed the material from the injection pipe into the mold body. The user can start the motor, and the output end of the motor drives the screw to rotate, and the screw drives the movable support to move up and down, and the movable support drives the trigger plate to squeeze the multiple knocking rods, so that the multiple knocking rods knock on the transmission plate, and the vibration of the knocking rods knocking on the transmission plate is transmitted to the mold body. When the material enters the mold body, on the one hand, the vibration of the transmission plate is transmitted to the mold body to drive out the air in the cavity , ensuring that the metal can fill every corner of the mold body more completely and evenly. On the other hand, it can break the oxide scale and gas in the molten metal, thereby reducing the formation of pores and oxides, and improving the quality and internal integrity of the casting. In conjunction with the set filtering mechanism, the user starts the vacuum pump to reduce the air pressure inside the mold body and extract the excess air in the mold body. The extracted air passes through the protective plate and is then filtered by multiple filter plates. This can prevent metal dust, oxide scale and other impurities generated by the molten metal and the mold from entering the vacuum pump through the transmission pipe during the die-casting process and damaging its internal parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a die-casting mold of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the second die-casting mold of the utility model;

[0018] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 It is a structural cross-sectional view of the filter mechanism part of the utility model;

[0020] Figure 5 It is a structural sectional view of the striking mechanism part of the utility model structure.

[0021] [Description of Reference Numerals]

[0022] 1. Die-casting mold 1; 2. Vacuum pump; 3. Die-casting mold 2; 4. Injection pipe; 5. Support base; 6. Knocking mechanism; 601. Mounting groove; 602. Limit box; 603. Transmission plate; 604. Knocking rod; 605. Limiting collar; 606. Moving support; 607. Motor; 608. Screw rod; 609. Trigger plate; 610. Connecting ring; 611. Reset spring; 612. Limiting groove; 7. Filter mechanism; 701. Protective mesh plate; 702. Mounting box; 703. Filter plate; 704. Branch pipe; 705. Transmission pipe; 706. Relay pipe; 8. Mold body; 9. Exhaust pipe. DETAILED DESCRIPTION

[0023] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0024] Please refer to Figures 1 to 5 As shown, a vacuum die-casting mold of the utility model comprises a die-casting mold 1, a die-casting mold 2 3 is provided on one side of the die-casting mold 1, a support base 5 is fixedly connected to the top of the die-casting mold 1, a vacuum pump 2 is fixedly connected to the top of the support base 5, an injection pipe 4 is fixedly connected to the inner side of the die-casting mold 2 3, a mold body 8 is fixedly connected to the center of one side wall of the die-casting mold 2 3, two knocking mechanisms 6 are provided on one side of the die-casting mold 1, and the two knocking mechanisms 6 include an installation groove 601, a limit box 602, a transmission plate 603, a knocking rod 604, a limit collar 605, a movable support 606, a motor 607, a screw 608, a trigger plate 609, a connecting ring 610, a limit groove 612 and a reset spring 611, and the two installation grooves 601 are both opened on both sides of the side wall of the die-casting mold 1, and the two installation A transmission plate 603 is fixedly connected to one side of the top of the groove 601, a motor 607 is fixedly connected to the top of the two installation grooves 601, a screw rod 608 is fixedly connected to the output end of the two motors 607, a movable support 606 is threadedly connected to the middle of the two screw rods 608, and a trigger plate 609 is fixedly connected to one end of the two movable supports 606, and the inner walls of the two installation grooves 601 are fixedly connected to the limit box 602, and the two limit boxes 602 are provided with a plurality of limit grooves 612, and a side wall of the plurality of limit grooves 612 is fixedly connected to a limit ring 605, and the inner walls of the plurality of limit grooves 612 are slidably connected to a knocking rod 604, and a connecting ring 610 is fixedly sleeved on the middle of the plurality of knocking rods 604, and a reset spring 611 is sleeved on the middle of the plurality of knocking rods 604;

[0025] A filtering mechanism 7 is provided at the bottom of the vacuum pump 2, and the filtering mechanism 7 includes a protective mesh plate 701, an installation box 702, a filter plate 703, a branch pipe 704, a transmission pipe 705 and a relay pipe 706. The two protective mesh plates 701 are both snap-connected to the two sides of the mold body 8, the backs of the two protective mesh plates 701 are fixedly connected with the installation box 702, the interiors of the two installation boxes 702 are snap-connected with multiple filter plates 703, one side wall of the two installation boxes 702 is fixedly connected with the branch pipe 704, one end of the two branch pipes 704 is fixedly connected with the relay pipe 706, and the top of the relay pipe 706 is fixedly connected with the transmission pipe 705. In the actual implementation process, through the set knocking mechanism 6, the user uses an electric push rod and other equipment to push the die-casting mold 2 3 to fit the die-casting mold 1 1 during die casting, and then feeds the material from the injection pipe 4 into the mold body 8. The user can start the motor 607, and the output end of the motor 607 drives the screw rod 608 to rotate, and the screw rod 608 drives the movable support 606 to move up and down, and the movable support 606 drives the trigger plate 609 to squeeze the multiple knocking rods 604, so that the multiple knocking rods 604 knock on the transmission plate 603, and the vibration of the knocking rod 604 knocking on the transmission plate 603 is transmitted to the mold body 8. When the material enters the mold body 8, the vibration can be transmitted to the material. On the one hand, the transmission plate 60 The vibration of 3 is transmitted to the mold body 8 to drive out the air in the cavity, ensuring that the metal can fill every corner of the mold body 8 more completely and evenly. On the other hand, it can break the oxide scale and gas in the molten metal, thereby reducing the formation of pores and oxides, and improving the quality and internal integrity of the casting. In conjunction with the provided filtering mechanism 7, the user starts the vacuum pump 2 to reduce the air pressure inside the mold body 8 and extract the excess air in the mold body 8. The extracted air passes through the protective plate and is then filtered by multiple filter plates 703, which can prevent metal dust, oxide scale and other impurities generated by the molten metal and the mold from entering the interior of the vacuum pump 2 through the transmission pipe 705 during the die-casting process to damage its internal parts.

[0026] Optionally, the top ends of the two screw rods 608 are rotatably connected to the top ends of the inner walls of the two mounting grooves 601. In actual implementation, the inner wall at the top end of the mounting groove 601 can provide a supporting effect for the screw rod 608.

[0027] Optionally, one side wall of the two movable supports 606 is respectively slidably connected to one side of the inner wall of the two mounting grooves 601. In actual implementation, the screw rod 608 is threadedly connected to the movable support 606, and the sliding connection between the movable support 606 and one side of the inner wall of the mounting groove 601 when the movable support 606 is lifted or lowered can increase the stability of the movable support 606 when sliding.

[0028] Optionally, one end of the multiple return springs 611 is respectively fixedly connected to a side wall of the multiple connection rings 610, and the other end of the multiple return springs 611 is respectively fixedly connected to a side wall of the limiting collar 605. In the actual implementation process, the two ends of the return spring 611 are respectively connected to the connection ring 610 and the limiting collar 605 to reset the knock rod 604. When the trigger plate 609 no longer squeezes the knock rod 604, the return spring 611 pulls the connection ring 610 to reset.

[0029] Optionally, the two transmission plates 603 are respectively attached to the two side walls of the mold body 8. In the actual implementation process, the transmission plates 603 can prevent the knocking rod 604 from directly knocking the mold body 8.

[0030] Optionally, the transmission pipe 705 is threadedly connected to the air inlet of the vacuum pump 2, and the air outlet of the vacuum pump 2 is fixedly connected to the exhaust pipe 9. In actual implementation, the vacuum pump 2 extracts the air from the transmission pipe 705 and then discharges it from the exhaust pipe 9.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description and the drawings, and the specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A vacuum die-casting mold, comprising a die-casting mold (1), characterized in that: A die-casting mold 2 (3) is provided on one side of the die-casting mold 1 (1); a support base (5) is fixedly connected to the top of the die-casting mold 1 (1); a vacuum pump (2) is fixedly connected to the top of the support base (5); an injection pipe (4) is fixedly connected to the inner side of the die-casting mold 2 (3); a mold body (8) is fixedly connected to the center of one side wall of the die-casting mold 2 (3); two knocking mechanisms (6) are provided on one side of the die-casting mold 1 (1); and the two knocking mechanisms ( 6) includes a mounting groove (601), a limit box (602), a transmission plate (603), a knock rod (604), a limit collar (605), a movable support (606), a motor (607), a screw rod (608), a trigger plate (609), a connecting ring (610), a limit groove (612) and a reset spring (611), wherein the two mounting grooves (601) are both provided on both sides of the side wall of the die-casting mold (1), and the tops of the two mounting grooves (601) are One side is fixedly connected with a transmission plate (603), the top ends of the two installation grooves (601) are fixedly connected with a motor (607), the output ends of the two motors (607) are fixedly connected with a screw rod (608), the middle parts of the two screw rods (608) are threadedly connected with a movable support (606), one end of the two movable supports (606) is fixedly connected with a trigger plate (609), and the inner walls of the two installation grooves (601) are fixedly connected with A limit box (602), wherein the two limit boxes (602) are each provided with a plurality of limit grooves (612), one side wall of each of the plurality of limit grooves (612) is fixedly connected to a limit ring (605), the inner walls of each of the plurality of limit grooves (612) are slidably connected to a knocking rod (604), the middle parts of each of the plurality of knocking rods (604) are fixedly sleeved with a connecting ring (610), and the middle parts of each of the plurality of knocking rods (604) are sleeved with a return spring (611); A filtering mechanism (7) is provided at the bottom of the vacuum pump (2), and the filtering mechanism (7) comprises a protective mesh plate (701), a mounting box (702), a filter plate (703), a branch pipe (704), a transmission pipe (705) and a relay pipe (706). The two protective mesh plates (701) are both snap-fitted and connected to the two sides of the mold body (8). The backs of the two protective mesh plates (701) are both fixedly connected to the mounting box (702). The interiors of the two mounting boxes (702) are both snap-fitted and connected to a plurality of filter plates (703). One side wall of the two mounting boxes (702) is both fixedly connected to the branch pipe (704). One end of the two branch pipes (704) is fixedly connected to the relay pipe (706), and the top of the relay pipe (706) is fixedly connected to the transmission pipe (705).

2. A vacuum die-casting mold according to claim 1, characterized in that: The top ends of the two screw rods (608) are rotatably connected to the top ends of the inner walls of the two mounting grooves (601) respectively.

3. A vacuum die-casting mold according to claim 1, characterized in that: One side wall of the two movable supports (606) is slidably connected to one side of the inner wall of the two installation grooves (601) respectively.

4. The vacuum die-casting mold according to claim 1, characterized in that: One end of the plurality of return springs (611) is respectively fixedly connected to a side wall of the plurality of connection rings (610), and the other end of the plurality of return springs (611) is respectively fixedly connected to a side wall of the limiting collar (605).

5. The vacuum die-casting mold according to claim 1, characterized in that: The two transmission plates (603) are respectively attached to the two side walls of the mold body (8).

6. The vacuum die-casting mold according to claim 1, characterized in that: The transmission pipe (705) is threadedly connected to the air inlet of the vacuum pump (2), and the air outlet of the vacuum pump (2) is fixedly connected to an exhaust pipe (9).

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