Low-pressure casting machine with adjustable pouring gate

Abstract

The utility model belongs to the technical field of low-pressure casting machines, and particularly relates to a low-pressure casting machine with an adjustable pouring gate, which comprises a frame body and the pouring gate, a pressurizing assembly is arranged at the top of the frame body; the bottom of the frame body is fixedly connected with a workbench; mold pushing assemblies are arranged on the side walls of the two sides of the workbench; a mold is placed at the top of the workbench; a first bearing plate and a second bearing plate are arranged at the bottom of the frame body through sliding pieces; a rotating rod is rotationally connected between the first bearing plate and the second bearing plate; the outer circle wall of the rotating rod is fixedly connected with a gear ring; the side wall of the sprue is fixedly connected with a rack; the rack is meshed with the gear ring; the side wall of the rack is fixedly connected with a limiting strip; an extension rod is fixedly connected to the outer circular wall of the rotating rod; the side wall of the extension rod is connected to the limiting strip in a sliding manner; the top of the pouring gate is fixedly connected with a guide pipe; the solidification sequence of different parts of the casting can be controlled, so that sequential solidification is realized, and the quality and performance of the casting are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-pressure casting machines, in particular to a low-pressure casting machine with an adjustable pouring gate. Background Art

[0002] Low-pressure casting machine is a general-purpose equipment for low-pressure casting of aluminum alloys. It can be widely used in the production of aluminum alloy castings in automobiles, motorcycles, instruments, textile machinery and aerospace industries. Aluminum alloy wheels have become the main material for automobile wheels due to their advantages such as light weight, high strength, good thermal conductivity and corrosion resistance. Low-pressure casting technology is currently the most mainstream, lowest cost and most efficient production process.

[0003] The fixed gate position of the low-pressure casting machine limits the flow flexibility of the molten metal during the casting process, which will cause uneven distribution of the molten metal inside the casting, affecting the integrity and quality of the casting. Therefore, the immovable gate of the low-pressure casting machine will limit the flexibility and adaptability of the casting process and have an adverse effect on the quality of the casting. Therefore, a low-pressure casting machine with an adjustable gate is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art, the fixed gate position of the low-pressure casting machine limits the flow flexibility of the molten metal during the casting process, which will cause uneven distribution of the molten metal inside the casting, affecting the integrity and quality of the casting. Therefore, the non-movable gate of the low-pressure casting machine will limit the flexibility and adaptability of the casting process and have an adverse effect on the quality of the casting. The utility model proposes a low-pressure casting machine with an adjustable gate.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a low-pressure casting machine with an adjustable gate, comprising a frame and a gate; a pressurizing assembly is provided on the top of the frame; a workbench is fixedly connected to the bottom of the frame; both side walls of the workbench are provided with ejection mold assemblies; a mold is placed on the top of the workbench; a first receiving plate and a second receiving plate are provided at the bottom of the frame through a sliding member; a rotating rod is rotatably connected between the first receiving plate and the second receiving plate; a gear ring is fixedly connected to the outer circular wall of the rotating rod; a rack is fixedly connected to the side wall of the gate; the rack and the gear ring are meshed with each other; a limit strip is fixedly connected to the side wall of the rack; an extension rod is fixedly connected to the outer circular wall of the rotating rod; the side wall of the extension rod is slidably connected to the limit strip; a conduit is fixedly connected to the top of the gate, which can control the solidification sequence of different parts of the casting, thereby realizing sequential solidification and improving the quality and performance of the casting.

[0006] Preferably, the sliding member includes a first U-shaped rod; the first U-shaped rod and the second U-shaped rod are respectively fixed to the bottom of the frame; the first supporting plate is slidably connected to the first U-shaped rod; the second U-shaped rod is slidably connected to the second supporting plate; the side wall of the first supporting plate is provided with a limit member, which enhances the flexibility and adaptability of the casting process and improves production efficiency.

[0007] Preferably, the limiting member includes a limiting block; the side wall of the first supporting plate is slidably connected to the limiting block; the side wall of the first U-shaped rod is provided with a plurality of limiting grooves; the limiting block matches the limiting groove; the side wall of the first supporting plate is fixedly connected with a U-shaped block; a spring is fixedly connected between the U-shaped block and the limiting block; the side walls on both sides of the limiting block are set as inclined surfaces, the gate is more flexible, and can adapt to the production needs of castings of more types and shapes.

[0008] Preferably, a slot is provided on the top of the limit block; an L-shaped slot is provided on the side wall of the first supporting plate; a block is slidably connected to the slot wall of the L-shaped slot; the block matches the slot, making it convenient for the operator to fix the horizontal linear movement of the gate.

[0009] Preferably, the rotating rod is provided with multiple sets of slide grooves 1 at one end close to the first supporting plate; the side wall of the slide groove 1 is slidably connected to the sliding block; the multiple sets of sliding blocks are fixedly connected by rotating the handle; the side wall of the first supporting plate is provided with a slide groove 2; the sliding block matches the slide groove 2, and plays a limiting role on the rotating rod, making it convenient for the operator to fix the gate when it moves up and down.

[0010] Preferably, a through slot is provided on the top of the frame; the through slot is in the shape of an elongated strip, so as to facilitate the movement of the catheter with the gate and avoid dragging of the catheter due to being dragged too long when moving with the gate.

[0011] The utility model is beneficial in that:

[0012] 1. The up and down movement of the gate can flexibly adjust the filling process of the molten metal, which helps to ensure that the molten metal flows smoothly in the mold and reduce the involvement of gas and impurities, thereby improving the quality of the casting. In addition, by adjusting the position of the gate and the filling speed of the molten metal, the solidification sequence of different parts of the casting can be controlled, thereby achieving sequential solidification and improving the quality and performance of the casting.

[0013] 2. It enhances the flexibility and adaptability of the casting process, improves production efficiency, makes the gate more flexible, and can adapt to the production needs of more types and shapes of castings. It is convenient for the operator to fix the horizontal linear movement of the gate, and it plays a limiting role on the rotating rod, which is convenient for the operator to fix the gate when it moves up and down, and it is convenient for the guide tube to move with the gate, avoiding dragging of the guide tube when it moves with the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0016] Figure 2 It is a partial structural diagram of the utility model;

[0017] Figure 3 It is a partial cross-sectional view of the utility model;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0020] Figure 6 It is a partial cross-sectional view of the first U-shaped rod.

[0021] In the figure: 1. frame; 2. gate; 3. pressurizing assembly; 4. workbench; 5. ejector assembly; 6. mold; 7. first receiving plate; 8. second receiving plate; 9. rotating rod; 10. gear ring; 11. rack; 12. limit strip; 13. extension rod; 14. guide tube; 15. first U-shaped rod; 16. second U-shaped rod; 17. limit block; 18. limit groove; 19. U-shaped block; 20. L-shaped groove; 21. block; 22. slide groove one; 23. sliding block; 24. rotating handle; 25. slide groove two; 26. through groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6As shown, a low-pressure casting machine with an adjustable gate includes a frame 1 and a gate 2. A pressurizing assembly 3 is provided on the top of the frame 1. A workbench 4 is fixedly connected to the bottom of the frame 1. Both side walls of the workbench 4 are provided with a push die assembly 5. A mold 6 is placed on the top of the workbench 4. A first receiving plate 7 and a second receiving plate 8 are provided at the bottom of the frame 1 through a sliding member. A rotating rod 9 is rotatably connected between the first receiving plate 7 and the second receiving plate 8. The outer circular wall of the rotating rod 9 is fixedly connected with a toothed plate. The side wall of the gate 2 is fixed with a rack 11, the rack 11 is meshed with the gear ring 10, the side wall of the rack 11 is fixed with a limit bar 12, the outer circular wall of the rotating rod 9 is fixed with an extension rod 13, the side wall of the extension rod 13 is slidably connected to the limit bar 12, and the top of the gate 2 is fixed with a guide tube 14. When working, the rotating rod 9 is rotated to drive the gear ring 10 to rotate, so that the rotation of the gear ring 10 drives the rack 11 to move up and down, and then the movement of the rack 11 is driven by the rotation of the rotating rod 9. The movement of the dynamic gate 2, the push-die assembly 5 is a prior art, and its function is to push the left and right molds 6 to close the two molds 6, and no further description is given. The pressurizing assembly 3 is a prior art, and its function is to evenly distribute the molten metal inside the mold 6 under pressure, and no further description is given. When preparing to cast parts, after the push-die assembly 5 closes the mold 6, the gate 2 is moved to the top of the casting entrance of the mold 6 through the action of the sliding part, and then the operator rotates the rotating rod 9 so that the rotation of the rotating rod 9 drives the gate 2 to move downward into the entrance of the mold 6, and then the molten metal is input from the gate 2 to the mold 6 by the conduit 14, so that the pressurizing assembly 3 performs pressure casting, and the up and down movement of the gate 2 can flexibly adjust the filling process of the molten metal, which helps to ensure that the molten metal flows smoothly in the mold, reduce the involvement of gas and impurities, thereby improving the quality of the casting, and by adjusting the position of the gate 2 and the filling speed of the molten metal, the solidification sequence of different parts of the casting can be controlled, thereby achieving sequential solidification and improving the quality and performance of the casting.

[0024] The sliding member includes a first U-shaped rod 15, and the bottom of the frame 1 is respectively fixed with the first U-shaped rod 15 and the second U-shaped rod 16, the first receiving plate 7 is slidably connected to the first U-shaped rod 15, and the second U-shaped rod 16 is slidably connected to the second receiving plate 8, and the side wall of the first receiving plate 7 is provided with a limiter. During operation, the first receiving plate 7 and the second receiving plate 8 slide on the first U-shaped rod 15 and the second U-shaped rod 16, so that the sliding of the first receiving plate 7 and the second receiving plate 8 drives the rotating rod 9 to move, and the movement of the rotating rod 9 drives the gate 2 to move through the extension rod 13 and the limit bar 12, so that the gate 2 can be adjusted and moved in a horizontal straight line, allowing the gate 2 position to be more flexibly adjusted in the casting process to meet the production requirements of castings of different shapes and sizes, which enhances the flexibility and adaptability of the casting process and improves production efficiency.

[0025] The limiting member includes a limiting block 17, the side wall of the first receiving plate 7 is slidably connected to the limiting block 17, the side wall of the first U-shaped rod 15 is provided with a plurality of limiting grooves 18, the limiting block 17 matches the limiting grooves 18, the side wall of the first receiving plate 7 is fixedly connected with a U-shaped block 19, a spring is fixedly connected between the U-shaped block 19 and the limiting block 17, and the side walls of both sides of the limiting block 17 are set as inclined surfaces. When working, the limiting block 17 slides on the first receiving plate 7, and when the limiting block 17 corresponds to the limiting groove 18, the limiting block 17 will be moved by the elastic force of the spring. When the gate 2 is inserted into the limiting groove 18 and waits for the gate 2 to continue to move horizontally, the operator can continue to push the first receiving block. At this time, the side of the limiting block 17 is acted upon by the driving force and will be squeezed and compressed with the groove wall of the limiting groove 18 back to the first receiving plate 7, so that the first receiving plate 7 can continue to drive the gate 2 to move. When the spacing between each limiting groove 18 is a fixed distance, it plays an auxiliary positioning function for the gate 2 when it moves horizontally in a straight line, making the gate 2 more flexible and able to adapt to the production needs of castings of more types and shapes, thereby improving the flexibility and adaptability of casting.

[0026] A card slot is provided on the top of the limit block 17, and an L-shaped slot 20 is provided on the side wall of the first receiving plate 7. A card block 21 is slidably connected to the slot wall of the L-shaped slot 20, and the card block 21 matches the card slot. During operation, the card block 21 slides in the L-shaped slot 20. When the gate 2 is fixed after moving horizontally and linearly, the operator can push the card block 21 to push the card block 21 from the transverse slot of the L-shaped slot 20 to the vertical slot. After entering the vertical slot of the L-shaped slot 20, the card block 21 can move downward into the card slot of the limit block 17, which has a fixing effect on the movement of the limit block 17 on the first receiving plate 7, and is convenient for the operator to fix the horizontal and linear movement of the gate 2.

[0027] The end of the rotating rod 9 close to the first receiving plate 7 is provided with a plurality of groups of slide grooves 22, and the side walls of the slide grooves 22 are slidably connected to the sliding blocks 23. The plurality of sliding blocks 23 are fixedly connected by rotating handles 24. The side walls of the first receiving plate 7 are provided with slide grooves 25, and the sliding blocks 23 match the slide grooves 25. During operation, the sliding blocks 23 slide in the slide grooves 22. When it is necessary to fix the gate 2 to move up and down, the operator can push the rotating handle 24 to make the sliding blocks 23 enter the slide grooves 25 of the first receiving plate 7. At this time, the sliding blocks 23 are between the slide grooves 1 22 and the slide grooves 25, which limit the rotating rod 9 and facilitate the operator to fix the gate 2 to move up and down.

[0028] A through slot 26 is provided on the top of the frame 1, and the through slot 26 is in a long strip shape. During operation, the through slot 26 on the frame 1 facilitates the movement of the conduit 14 with the gate 2, thereby preventing the conduit 14 from being dragged too long when moving with the gate 2.

[0029] Working principle, the gear ring 10 is driven to rotate by rotating the rotating rod 9, so that the rotation of the gear ring 10 drives the rack 11 to move up and down, and then the movement of the rack 11 drives the movement of the gate 2. The push mold assembly 5 is a prior art, and its function is to push the left and right molds 6 to close the two molds 6. No further description is given. The pressurizing assembly 3 is a prior art, and its function is to evenly distribute the molten metal inside the mold 6 under pressure. No further description is given. When preparing to cast parts, after the push mold assembly 5 closes the mold 6, the gate 2 is moved to the top of the casting entrance of the mold 6 through the action of the sliding part, and then the operator rotates the rotating rod 9, so that the rotation of the rotating rod 9 drives the gate 2 to move downward into the entrance of the mold 6, and then the duct 14 inputs the molten metal from the gate 2 to In the mold 6, the pressurizing component 3 is allowed to perform pressure casting. The up and down movement of the gate 2 can flexibly adjust the filling process of the molten metal, which helps to ensure that the molten metal flows smoothly in the mold and reduce the involvement of gas and impurities, thereby improving the quality of the casting. In addition, by adjusting the position of the gate 2 and the filling speed of the molten metal, the solidification sequence of different parts of the casting can be controlled, thereby achieving sequential solidification and improving the quality and performance of the casting. The first receiving plate 7 and the second receiving plate 8 slide on the first U-shaped rod 15 and the second U-shaped rod 16, so that the sliding of the first receiving plate 7 and the second receiving plate 8 drives the rotating rod 9 to move, so that the movement of the rotating rod 9 drives the gate 2 to move through the extension rod 13 and the limit bar 12, so that the gate 2 can be adjusted and moved in a horizontal straight line. It allows the position of the gate 2 to be adjusted more flexibly in the casting process to meet the production needs of castings of different shapes and sizes, which enhances the flexibility and adaptability of the casting process and improves production efficiency. The limit block 17 slides on the first receiving plate 7. When the limit block 17 corresponds to the limit groove 18, the limit block 17 will enter the limit groove 18 through the elastic force of the spring. When the gate 2 continues to move horizontally, the operator can continue to push the first receiving block. At this time, the side of the limit block 17 is affected by the driving force and will be squeezed and compressed with the groove wall of the limit groove 18 back to the first receiving plate 7, so that the first receiving plate 7 can continue to drive the gate 2 to move. When the spacing between each limit groove 18 is a fixed distance, the gate 2 is played when it moves horizontally in a straight line. The auxiliary positioning function makes the gate 2 more flexible and can adapt to the production needs of castings of more types and shapes, thereby improving the flexibility and adaptability of casting. By sliding the block 21 in the L-shaped groove 20, when the gate 2 is fixed after moving horizontally and linearly, the operator can push the block 21 to push the block 21 from the transverse groove of the L-shaped groove 20 to the vertical groove. After entering the vertical groove of the L-shaped groove 20, the block 21 can move downward into the slot of the limit block 17, which has a fixing effect on the movement of the limit block 17 on the first receiving plate 7, making it convenient for the operator to fix the horizontal and linear movement of the gate 2. By sliding the sliding block 23 in the slide groove 22, when the gate 2 needs to be fixed when it moves up and down, the operator can push and turn the handle 24.The sliding block 23 enters the second slide groove 25 of the first receiving plate 7. At this time, the sliding block 23 is between the first slide groove 22 and the second slide groove 25, which limits the rotation rod 9, making it convenient for the operator to fix the gate 2 when it moves up and down. Through the through groove 26 on the frame 1, it is convenient for the guide tube 14 to move with the gate 2, avoiding the guide tube 14 from being dragged too long when it moves with the gate 2.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A low-pressure casting machine with adjustable gate, characterized in that: The invention comprises a frame (1) and a gate (2); a pressurizing assembly (3) is provided on the top of the frame (1); a workbench (4) is fixedly connected to the bottom of the frame (1); both side walls of the workbench (4) are provided with ejection assemblies (5); a mold (6) is placed on the top of the workbench (4); a first receiving plate (7) and a second receiving plate (8) are provided on the bottom of the frame (1) through a sliding member; a rotating member is rotatably connected between the first receiving plate (7) and the second receiving plate (8); A movable rod (9); the outer circular wall of the rotating rod (9) is fixedly connected to a gear ring (10); the side wall of the gate (2) is fixedly connected to a rack (11); the rack (11) and the gear ring (10) are meshed with each other; the side wall of the rack (11) is fixedly connected to a limit strip (12); the outer circular wall of the rotating rod (9) is fixedly connected to an extension rod (13); the side wall of the extension rod (13) is slidably connected to the limit strip (12); the top of the gate (2) is fixedly connected to a guide tube (14); The rotating rod (9) is provided with a plurality of groups of slide grooves (22) at one end close to the first receiving plate (7); the side wall of the slide groove (22) is slidably connected to a sliding block (23); the plurality of groups of sliding blocks (23) are fixedly connected by rotating a handle (24); the side wall of the first receiving plate (7) is provided with a slide groove (25); the sliding block (23) matches the slide groove (25).

2. A low-pressure casting machine with an adjustable gate according to claim 1, characterized in that: The sliding member comprises a first U-shaped rod (15); the first U-shaped rod (15) and the second U-shaped rod (16) are respectively fixed to the bottom of the frame body (1); the first receiving plate (7) is slidably connected to the first U-shaped rod (15); the second U-shaped rod (16) is slidably connected to the second receiving plate (8); and a limiting member is provided on the side wall of the first receiving plate (7).

3. A low-pressure casting machine with adjustable gate according to claim 2, characterized in that: The limiting member comprises a limiting block (17); the side wall of the first receiving plate (7) is slidably connected to the limiting block (17); the side wall of the first U-shaped rod (15) is provided with a plurality of limiting grooves (18); the limiting block (17) matches the limiting grooves (18); the side wall of the first receiving plate (7) is fixedly connected with a U-shaped block (19); a spring is fixedly connected between the U-shaped block (19) and the limiting block (17); and the side walls on both sides of the limiting block (17) are both arranged as inclined surfaces.

4. A low-pressure casting machine with adjustable gate according to claim 3, characterized in that: The top of the limit block (17) is provided with a slot; the side wall of the first receiving plate (7) is provided with an L-shaped slot (20); the slot wall of the L-shaped slot (20) is slidably connected with a slot block (21); the slot block (21) matches the slot.

5. A low-pressure casting machine with adjustable gate according to claim 4, characterized in that: A through slot (26) is provided on the top of the frame (1); the through slot (26) is in the shape of an elongated strip.

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