High-strength ductile iron casting sand mold molding machine

Abstract

This invention relates to the field of sand molding machine technology and discloses a high-strength ductile iron casting sand molding machine, including a U-shaped frame, and further comprising: a support plate disposed between the upper and lower horizontal edges of the U-shaped frame, with a receiving plate connected above the support plate via a connecting mechanism for receiving the sand mold after molding; a molding component disposed on the U-shaped frame and used for molding the sand mold; and a feeding component disposed on the U-shaped frame and the support plate, used for receiving the sand mold after molding, which can automatically receive the sand mold, ensuring the molding efficiency of ductile iron castings. Through the setting of the molding component and the feeding component, this invention can automatically separate the ring and the sand mold when the ring moves upward after sand molding is completed, and the receiving plate can receive the sand mold, thereby realizing automated sand molding, helping to improve the molding efficiency of sand molds, and thus improving the use effect of the equipment.

Description

Technical Field

[0001] This invention relates to the field of sand molding machine technology, and in particular to a sand molding machine for high-strength ductile iron castings. Background Technology

[0002] A sand molding machine is a type of foundry equipment used to manufacture molding sand. Its main function is to fill the sand, putting loose molding sand into the sand box and compacting it through methods such as vibration, pressing, and shock, so that the sand mold has the necessary strength during handling and pouring.

[0003] For example, the adjustable sand molding machine for plate casting disclosed in announcement number CN210450863U can perform sand molding, but it is inconvenient to separate the sand mold after molding, which reduces the efficiency of sand molding. Therefore, there is an urgent need to design a high-strength ductile iron casting sand molding machine. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a sand molding machine for high-strength ductile iron castings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sand molding machine for high-strength ductile iron castings, including a U-shaped frame, and further comprising:

[0007] The support plate is set between the upper and lower horizontal sides of the U-shaped frame. A receiving plate is connected above the support plate by a connecting mechanism to support the sand mold after molding.

[0008] The shaping component is set on the U-shaped frame and is used to shape the sand mold;

[0009] The blanking assembly is set on the U-shaped frame and the support plate. The blanking assembly is used to receive the sand mold after molding. It can automatically receive the sand mold, ensuring the molding efficiency of ductile iron sand mold.

[0010] As a further technical solution of the present invention, the molding component includes: a bottom shell, which is installed on the top of the lower horizontal side of the U-shaped frame, and a ring is placed on the top of the bottom shell. A pressure plate is provided above the ring, and a first hydraulic telescopic rod is installed on the top of the upper horizontal side of the U-shaped frame. The output end of the first hydraulic telescopic rod passes through the upper horizontal side of the U-shaped frame and is fixedly installed on the top of the pressure plate, for placing the sand mold between the bottom shell and the ring and then extruding it through the pressure plate to shape it.

[0011] As a further technical solution of the present invention, the connecting mechanism includes: a first spring rod, there are four first spring rods, the four first spring rods are fixedly installed at the four ends of the top of the bearing plate, and the telescopic end of the first spring rod is fixedly installed at the bottom of the receiving plate, for limiting and supporting the receiving plate, so that after the sand mold falls onto the receiving plate, the receiving plate can move downward relative to the bearing plate to realize the separation of the sand mold and the ring.

[0012] As a further technical solution of the present invention, the unloading assembly includes: a second hydraulic telescopic rod, there are two second hydraulic telescopic rods, the output ends of the two second hydraulic telescopic rods pass through the horizontal side of the U-shaped frame and are fixedly installed on the outer surface of the ring, and a Z-shaped rod is fixedly installed on the output end surface of each second hydraulic telescopic rod, which is used to drive the Z-shaped rod to move up and down through the second hydraulic telescopic rod.

[0013] As a further technical solution of the present invention, a slide rail is horizontally fixedly installed on the inner side of the lower horizontal edge of the Z-shaped rod, and multiple evenly distributed rollers are installed on the top of the slide rail in a straight line so that the slide rail can slide through the rollers when it comes into contact with the bearing plate.

[0014] As a further technical solution of the present invention, slide rails are horizontally fixedly installed on both sides of the bottom of the bearing plate, and sliders are slidably installed inside the slide rails. A second spring rod is vertically fixedly installed at the bottom of the slider. The fixed end of the second spring rod is fixedly installed on the top of the lower horizontal side of the U-shaped frame, which is used to support and limit the bearing plate in the horizontal direction, so that the bearing plate can be reset after moving upward.

[0015] As a further technical solution of the present invention, two symmetrically arranged L-shaped frames are fixed horizontally at the end of the horizontal side of the U-shaped frame, and a sliding groove is opened on the outer side of the vertical side of each L-shaped frame. A movable block is slidably installed inside each sliding groove. A fourth spring rod is fixed to the side of the movable block at the end of the sliding groove, and a movable rod is rotatably installed on the end face of each movable block. The ends of the two movable rods are respectively rotatably installed on both sides of the bearing plate to limit the bearing plate, so that the bearing plate can move horizontally when it moves downward.

[0016] As a further technical solution of the present invention, an L-shaped plate is fixedly installed on the horizontal end of the U-shaped frame, and the L-shaped plate is located between two L-shaped frames. Two symmetrically arranged third spring rods are fixedly installed on the inner side of the vertical side of the L-shaped plate, and sleeve plates are fixedly sleeved on the telescopic end surfaces of the two third spring rods to enable the telescopic ends of the two third spring rods to move synchronously.

[0017] As a further technical solution of the present invention, two third spring rods are fixedly mounted with discs at their telescopic ends for pushing the sand mold formed inside the ring away from the ring. Two symmetrically arranged vertical plates are vertically fixed at the top of the bearing plate, and the vertical plates and the side of the sleeve plate slide against each other, so that when the bearing plate drives the vertical plates to move, the vertical plates can drive the disc to move through the sleeve plate, and the upward movement of the vertical plates does not affect the position of the disc in the vertical direction.

[0018] The beneficial effects of this invention are as follows:

[0019] This invention, through the setting of molding components and feeding components, can automatically separate the ring and the sand mold when the ring moves upward after the sand mold molding is completed, and the sand mold can be supported by the receiving plate to realize the automated molding of the sand mold, which helps to improve the molding efficiency of the sand mold and thus improves the use effect of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a sand molding machine for high-strength ductile iron castings proposed in this invention;

[0021] Figure 2 This is a bottom view structural schematic diagram of a sand molding machine for high-strength ductile iron castings proposed in this invention;

[0022] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;

[0023] Figure 4 This is a rear view structural schematic diagram of a sand molding machine for high-strength ductile iron castings proposed in this invention;

[0024] Figure 5 This is a schematic diagram of the structure of a sand molding machine for high-strength ductile iron castings after removing the U-shaped frame, as proposed in this invention.

[0025] Figure 6 This is a schematic diagram of the L-shaped plate and its connection structure of a sand molding machine for high-strength ductile iron castings proposed in this invention.

[0026] Figure 7 for Figure 6 Enlarged diagram of part B.

[0027] In the diagram: 1. U-shaped frame; 2. Base shell; 3. Ring; 4. First hydraulic telescopic rod; 5. Pressure plate; 6. Second hydraulic telescopic rod; 7. L-shaped plate; 8. L-shaped frame; 9. Z-shaped rod; 10. Slide rail; 11. Bearing plate; 12. Support plate; 13. First spring rod; 14. Movable rod; 15. Disc; 16. Slide rail; 17. Slider; 18. Second spring rod; 19. Vertical plate; 20. Third spring rod; 21. Sleeve plate; 22. Slide groove; 23. Fourth spring rod; 24. Movable block. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see the appendix Figure 1 -Appendix Figure 7 A high-strength ductile iron casting sand molding machine includes a U-shaped frame 1, a support plate 11, a molding component, and a blanking component. The support plate 11 is disposed between the upper and lower horizontal sides of the U-shaped frame 1. A receiving plate 12 is connected above the support plate 11 via a connecting mechanism for receiving the sand mold after molding. The molding component is disposed on the U-shaped frame 1 and is used to mold the sand mold. The blanking component is disposed on the U-shaped frame 1 and the support plate 11 and is used to receive the sand mold after molding. It can automatically receive the sand mold, ensuring the molding efficiency of ductile iron casting sand molds.

[0031] Please see the appendix Figure 1 -Appendix Figure 7 In a preferred embodiment, the molding component includes: a base shell 2, which is installed on the top of the lower horizontal side of the U-shaped frame 1, and a ring 3 is placed on the top of the base shell 2. A pressure plate 5 is provided above the ring 3, and a first hydraulic telescopic rod 4 is installed on the top of the upper horizontal side of the U-shaped frame 1. The output end of the first hydraulic telescopic rod 4 passes through the upper horizontal side of the U-shaped frame 1 and is fixedly installed on the top of the pressure plate 5, for placing the sand mold between the base shell 2 and the ring 3 and then pressing it with the pressure plate 5 to shape it.

[0032] Please see the appendix Figure 1 -Appendix Figure 7In a preferred embodiment, the connecting mechanism includes: four first spring rods 13, which are fixedly installed at the four ends of the top of the bearing plate 11, and the telescopic ends of the first spring rods 13 are fixedly installed at the bottom of the receiving plate 12, for limiting and supporting the receiving plate 12, so that after the sand mold falls onto the receiving plate 12, the receiving plate 12 can move downward relative to the bearing plate 11 to separate the sand mold and the ring 3.

[0033] Please see the appendix Figure 1 -Appendix Figure 7 In a preferred embodiment, the unloading assembly includes: a second hydraulic telescopic rod 6, there are two second hydraulic telescopic rods 6, the output ends of the two second hydraulic telescopic rods 6 pass through the upper horizontal edge of the U-shaped frame 1 and are fixedly installed on the outer surface of the ring 3, and a Z-shaped rod 9 is fixedly installed on the output end surface of each second hydraulic telescopic rod 6, which is used to drive the Z-shaped rod 9 to move up and down through the second hydraulic telescopic rod 6.

[0034] Please see the appendix Figure 1 -Appendix Figure 7 In a preferred embodiment, a slide rail 10 is horizontally fixedly installed on the inner side of the lower horizontal edge of the Z-shaped rod 9, and multiple evenly distributed rollers are mounted on the top of the slide rail 10 in a straight line so that the slide rail 10 can slide through the rollers when it comes into contact with the bearing plate 11.

[0035] Please see the appendix Figure 1 -Appendix Figure 7 In a preferred embodiment, slide rails 16 are horizontally fixedly installed on both sides of the bottom of the support plate 11, and sliders 17 are slidably installed inside the slide rails 16. A second spring rod 18 is vertically fixedly installed at the bottom of the slider 17. The fixed ends of the second spring rod 18 are fixedly installed on the top of the lower horizontal side of the U-shaped frame 1, which is used to support and limit the support plate 11 in the horizontal direction, so that the support plate 11 can be reset after moving upward.

[0036] Please see the appendix Figure 1 -Appendix Figure 7 In a preferred embodiment, two symmetrically arranged L-shaped frames 8 are horizontally fixed at the horizontal end of the U-shaped frame 1, and each L-shaped frame 8 has a groove 22 on the outer side of its vertical side. A movable block 24 is slidably installed inside each groove 22. A fourth spring rod 23 is installed at the inner end of the groove 22 and fixed to the side of the movable block 24. A movable rod 14 is rotatably installed on the end face of each movable block 24. The ends of the two movable rods 14 are respectively rotatably installed on both sides of the support plate 11 to limit the support plate 11 so that the support plate 11 can move horizontally when it moves downward.

[0037] Please see the appendix Figure 1 -Appendix Figure 7In a preferred embodiment, an L-shaped plate 7 is fixedly installed on the horizontal end of the U-shaped frame 1, and the L-shaped plate 7 is located between two L-shaped frames 8. Two symmetrically arranged third spring rods 20 are fixedly installed on the inner side of the vertical side of the L-shaped plate 7, and a sleeve plate 21 is fixedly sleeved on the surface of the telescopic end of the two third spring rods 20 to enable the telescopic ends of the two third spring rods 20 to move synchronously.

[0038] Please see the appendix Figure 1 -Appendix Figure 7 In a preferred embodiment, two third spring rods 20 are fixedly mounted with discs 15 at their telescopic ends for pushing the sand mold formed inside the ring 3 away from the ring 3. Two symmetrically arranged vertical plates 19 are vertically fixed at the top of the bearing plate 11, and the vertical plates 19 slide against the side of the sleeve plate 21. When the bearing plate 11 moves the vertical plates 19, the vertical plates 19 can move the discs 15 through the sleeve plate 21, and the upward movement of the vertical plates 19 does not affect the vertical position of the discs 15.

[0039] The working principle of this invention is as follows: The sand mold is placed in the space formed by the bottom shell 2 and the ring 3, and then the pressure plate 5 is moved downward by the first hydraulic telescopic rod 4. The downward movement of the pressure plate 5 will squeeze the sand mold in the space formed by the bottom shell 2 and the ring 3 to complete the shaping of the sand mold.

[0040] Next, the pressure plate 5 is moved upward by the first hydraulic telescopic rod 4, and then the ring 3 and Z-shaped rod 9 are moved upward by the second hydraulic telescopic rod 6. The upward movement of the ring 3 will move the sand mold upward together, and the upward movement of the Z-shaped rod 9 will move the slide rail 10 and roller upward.

[0041] When the height of the ring 3 exceeds that of the receiving plate 12, the roller contacts the bearing plate 11. The roller's continued upward movement then drives the bearing plate 11 upward. This upward movement of the bearing plate 11 causes the first spring rod 13, the vertical plate 19, and the movable rod 14 to move. The movement of the first spring rod 13 then drives the receiving plate 12 upward, achieving simultaneous upward movement of the receiving plate 12 and the ring 3. Due to the arrangement of the movable block 24 and the fourth spring rod 23, the movable rod 14 also moves closer to the ring 3 as it moves upward. The direction of movement causes the support plate 11 to move, which in turn moves the slide rail 16 and the vertical plate 19. Due to the limiting effect of the slider 17 on the slide rail 16, the slide rail 16 and the support plate 11 move stably. In addition, when the vertical plate 19 moves, it will cause the sleeve plate 21 to move horizontally. The movement of the sleeve plate 21 will cause the extension end of the third spring rod 20 and the disc 15 to move horizontally together until the slider 17 slides to the end of the slide rail 16. At this time, the support plate 12 is located directly below the ring 3, while the disc 15 is located above the ring 3.

[0042] As the guide rail and rollers continue to move upward, since the bearing plate 11 can no longer move horizontally, the top of the movable rod 14 and the movable block 24 will move and the fourth spring rod 23 will generate elastic force to enable the bearing plate 11 to move upward. Further upward movement of the bearing plate 11 will drive the receiving plate 12 to move upward through the first spring rod 13, ensuring the consistency of the upward movement of the receiving plate 12 and the ring 3. It should be noted that during this process, a fan can be installed below the bearing plate 11 to clean the impurities on the U-shaped frame 1 and the bottom shell 2.

[0043] Due to the setting of the disc 15, the upward movement of the ring 3 will cause the sand mold and the disc 15 to come into contact and squeeze. The sand mold will be squeezed onto the receiving plate 12. The gravity of the sand mold will cause the receiving plate 12 to move upward and cause the first spring rod 13 to generate elastic force, so as to separate the sand mold and the ring 3.

[0044] Finally, the device can be reset by moving it down through the six points of the second hydraulic telescopic rod.

[0045] In summary, after the sand mold is completed, the ring 3 will automatically separate from the sand mold as it moves upward. The sand mold can be supported by the receiving plate 12, thus realizing the automated sand mold molding process. This helps to improve the molding efficiency of the sand mold and improves the overall performance of the equipment.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sand molding machine for high-strength ductile iron castings, comprising a U-shaped frame (1), characterized in that, Also includes: The support plate (11) is located between the upper and lower horizontal sides of the U-shaped frame (1), and a supporting plate (12) is connected above the support plate (11) through a connecting mechanism. A shaping component is provided on a U-shaped frame (1) and is used to shape a sand mold; The material feeding assembly is set on the U-shaped frame (1) and the bearing plate (11). The material feeding assembly is used to receive the sand mold after molding.

2. The sand molding machine for high-strength ductile iron castings according to claim 1, characterized in that, The shaping component includes: a bottom shell (2), which is installed on the top of the lower horizontal side of the U-shaped frame (1), and a ring (3) is placed on the top of the bottom shell (2). A pressure plate (5) is provided above the ring (3), and a first hydraulic telescopic rod (4) is installed on the top of the upper horizontal side of the U-shaped frame (1). The output end of the first hydraulic telescopic rod (4) passes through the upper horizontal side of the U-shaped frame (1) and is fixedly installed on the top of the pressure plate (5).

3. The sand molding machine for high-strength ductile iron castings according to claim 2, characterized in that, The connecting mechanism includes: a first spring rod (13), there are four first spring rods (13), the four first spring rods (13) are fixedly installed at the top four ends of the bearing plate (11), and the telescopic ends of the first spring rods (13) are fixedly installed at the bottom of the receiving plate (12).

4. A sand molding machine for high-strength ductile iron castings according to claim 3, characterized in that, The feeding assembly includes: a second hydraulic telescopic rod (6), there are two second hydraulic telescopic rods (6), the output ends of the two second hydraulic telescopic rods (6) pass through the upper horizontal edge of the U-shaped frame (1) and are fixedly installed on the outer surface of the ring (3), and a Z-shaped rod (9) is fixedly installed on the output end surface of each second hydraulic telescopic rod (6).

5. A sand molding machine for high-strength ductile iron castings according to claim 4, characterized in that, The inner side of the lower horizontal edge of the Z-shaped rod (9) is fixedly mounted with a slide rail (10), and the top of the slide rail (10) is mounted with multiple evenly distributed rollers in a straight line.

6. A sand molding machine for high-strength ductile iron castings according to claim 5, characterized in that, The bottom sides of the bearing plate (11) are both horizontally fixed with slide rails (16), and the slide rails (16) are both slidably installed with sliders (17). The bottom of the sliders (17) is vertically fixed with a second spring rod (18), and the fixed end of the second spring rod (18) is fixedly installed on the top of the lower horizontal side of the U-shaped frame (1).

7. A sand molding machine for high-strength ductile iron castings according to claim 6, characterized in that, The U-shaped frame (1) has two symmetrically arranged L-shaped frames (8) fixed horizontally at the end of its horizontal side. Each L-shaped frame (8) has a groove (22) on the outer side of its vertical side. Each groove (22) has a movable block (24) slidably installed inside it. A fourth spring rod (23) fixed to the side of the movable block (24) is installed at the end of the groove (22). Each movable block (24) has a movable rod (14) rotatably installed on its end face. The ends of the two movable rods (14) are rotatably installed on both sides of the bearing plate (11).

8. A sand molding machine for high-strength ductile iron castings according to claim 7, characterized in that, An L-shaped plate (7) is fixedly installed on the horizontal end of the U-shaped frame (1), and the L-shaped plate (7) is located between two L-shaped frames (8). Two symmetrically arranged third spring rods (20) are fixedly installed on the inner side of the vertical side of the L-shaped plate (7), and the telescopic end surfaces of the two third spring rods (20) are fixedly sleeved with sleeve plates (21).

9. A sand molding machine for high-strength ductile iron castings according to claim 8, characterized in that, Two third spring rods (20) are fixedly mounted with discs (15) at their telescopic ends. Two symmetrically arranged vertical plates (19) are vertically fixed at the top of the bearing plate (11), and the vertical plates (19) and the side of the sleeve plate (21) slide against each other.

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