An inverted shakeout type sand floater for investment casting

Abstract

This utility model discloses a tilting and falling sand floating sand machine for investment casting, including a base plate. A fixed frame is fixedly connected to one side of the upper surface of the base plate, and a sand box is fixedly connected to one end of the fixed frame. The sand box is suspended and fixed to the upper end of the base plate. A bracket is fixedly connected to the middle of the base plate. A motor is fixedly installed inside the upper end of the bracket. A crossbar is rotatably installed at one end of the motor. Both ends of the crossbar are hinged to hinge rods. A bellows is fixedly connected to one end of the hinge rod. The bellows are symmetrically distributed on both sides of the bracket. The upper surface of the bellows is tightly connected to the lower surface of the sand box. A telescopic rod is fixedly installed on the upper surface of the base plate. A circular support ring is fixedly connected to the head of the telescopic rod. The circular support ring is slidably sleeved on the outside of the bracket, and can be extended and pushed for support and alignment, which is convenient for adjustment and use, stable and efficient, and easy to install and use.

Description

Technical Field

[0001] This utility model relates to the field of sand-floating machines, and more specifically, to a tilting sand-falling type sand-floating machine for investment casting. Background Technology

[0002] In the investment casting industry, various types of sand are applied to a wax model containing slurry during the mold shell production process using equipment such as sand-sprinkling machines and flotation machines to form a mold shell. However, existing flotation machines have some problems: during operation, because the slurry is always in a semi-solid state, some slurry will fall into the sand when adhering to it, resulting in a lot of dry slurry with fine sand powder adhering to it. This dry slurry has a high specific gravity and will gradually fall to the bottom of the flotation machine, clogging the grid at the air inlet of the flotation machine and affecting the flotation effect.

[0003] Application CN 119035465 A discloses an automatic tilting and dropping sand-making machine for investment casting, including a base, a sand-making machine body, and a tilting mechanism. The sand-making machine body includes a sand box and a bellows that can be opened and closed. The bellows is located below the sand box and is connected to the base. The tilting mechanism includes a drive device and a rotating component connected to the base. The rotating component is configured to drive the bellows to rotate downward relative to the sand box under the action of the drive device to open the sand box at a preset angle, so that the material in the sand box slides down through the tilted bellows. It can also drive the bellows to rotate upward relative to the sand box under the action of the drive device to close the sand box, thereby sealing the sand box, feeding sand, and floating sand. This eliminates the need for workers to go to the bottom of the sand-making machine to take out sand and then lift it to the top of the sand-making machine to sieve the sand through a filter screen. This ensures that all the sand in the sand-making machine leaves the machine automatically, reducing the labor intensity of workers and improving the working environment for employees.

[0004] In the above-disclosed structure, the bellows is supported and installed by a rotating component on the side of the sand box, and can be flipped and adjusted for alignment. However, it lacks a rotating crossbar to hinge the bellows, so it cannot be rotated and adjusted for alternating alignment. This makes it difficult to clean and maintain the bellows, resulting in poor adaptability and insufficient stability, which needs to be improved. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a tilting and falling sand floating sand machine for investment casting. The motor and crossbar are installed on the bracket on the base plate, and the air box is hinged by the hinge rod. It can be rotated and adjusted, which is conducive to tilting and positioning for combined use. It can also be used alternately, which is convenient for cleaning and maintenance. At the same time, a circular support ring is installed through the telescopic rod, which can be extended and pushed for support and positioning, which is convenient for adjustment and use, stable and efficient, and easy to install and use.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A tilting and falling sand floating sand machine for investment casting includes a base plate. A fixed frame is fixedly connected to one side of the upper surface of the base plate. A sand box is fixedly connected to one end of the fixed frame. The sand box is suspended and fixed to the upper end of the base plate. A bracket is fixedly connected to the middle of the base plate. A motor is fixedly installed inside the upper end of the bracket. A crossbar is rotatably installed at one end of the motor. Both ends of the crossbar are hinged to hinge rods. A bellows is fixedly connected to one end of each hinge rod. The bellows are symmetrically distributed on both sides of the bracket. The upper surface of the bellows is tightly connected to the lower surface of the sand box. A telescopic rod is fixedly installed on the upper surface of the base plate. A circular support ring is fixedly connected to the head of the telescopic rod. The circular support ring is slidably sleeved on the outside of the bracket. The upper surface of the circular support ring is tightly connected to the lower surface of the hinge rod.

[0008] Furthermore, guide rods are fixedly connected to both sides of the inner side of the circular support ring, and the guide rods are located on both sides of the bracket.

[0009] Furthermore, a guide ring is fixed to one end of the guide rod, and the guide ring is slidably sleeved on the outer surface of the bracket.

[0010] Furthermore, the hinge rod is slidably connected to the upper surface of the circular support ring and is located on both sides of the bracket. The guide rod and the guide ring are connected through the circular support ring, and can be combined for guidance and support to ensure the stability of the circular support rod in vertical adjustment.

[0011] Furthermore, a support cylinder is fixedly connected to one end of the lower surface of the bellows, and a support spring is slidably installed inside the support cylinder.

[0012] Furthermore, one end of the support spring is fixedly connected to a support rod, which is slidably installed inside the support cylinder.

[0013] Furthermore, a support block is fixedly connected to the lower end of the support rod, and a support ball is rotatably connected to the lower end of the support block. The support ball is rotatably connected to the upper surface of the base plate. The support spring and the support rod are connected through the support cylinder. Combined with the support ball at the bottom, the bellows can be supported and positioned. At the same time, it can be compressed and avoided to prevent overturning interference, which is conducive to combined use and convenient for stability.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution uses a bracket on the base plate to install the motor and crossbar, and combines the hinge rod to hinge the air box. It can be rotated and adjusted, which is convenient for flipping and positioning for combined use. It can also be used alternately, which is convenient for cleaning and maintenance. At the same time, a circular support ring is installed through the telescopic rod, which can be extended and pushed for support and positioning, which is convenient for adjustment and use, stable and efficient, and convenient for installation and use.

[0016] (2) The guide rod and the guide ring are connected by a circular support ring, which can be combined to provide guidance and support, ensuring the stability of the circular support rod in adjusting up and down.

[0017] (3) By connecting the support spring and the support rod through the support cylinder and combining it with the support ball at the bottom, the bellows can be supported and positioned. At the same time, it can be compressed and avoided to prevent overturning interference, which is conducive to combined use and convenient for stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0020] Figure 3 This is a partial structural diagram of the hinge rod connection of this utility model;

[0021] Figure 4 This is a partial structural diagram of the connection between the support cylinder and the support rod of this utility model;

[0022] Figure 5 This is a partial structural diagram of the circular support ring connection of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Base plate, 11. Bracket, 12. Motor, 13. Crossbar, 14. Hinge rod, 15. Air box, 16. Fixing frame, 17. Sand box, 18. Telescopic rod, 19. Circular support ring, 2. Guide rod, 21. Guide ring, 22. Support cylinder, 23. Support spring, 24. Support rod, 25. Support block, 26. Support ball. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 3 and Figure 5A tilting and dropping sand-making machine for investment casting includes a base plate 1. A fixed frame 16 is fixedly connected to one side of the upper surface of the base plate 1. A sand box 17 is fixedly connected to one end of the fixed frame 16, and the sand box 17 is suspended and fixed to the upper end of the base plate 1. A support 11 is fixedly connected to the middle of the base plate 1. A motor 12 is fixedly installed inside the upper end of the support 11. A crossbar 13 is rotatably installed at one end of the motor 12. The angle position can be adjusted by rotating the crossbar 13 driven by the motor 12, so that two bellows 15 can be used in alignment. One side is tilted and dropping sand, while the other side can be cleaned and maintained, which is conducive to alternating use, avoids interference, and is highly efficient and stable. Both ends of the crossbar 13 are hinged to hinge rods 14, and one end of the hinge rod 14 is fixedly connected to a bellows 15. The bellows 15 are symmetrically distributed on the support 11. On both sides, the upper surface of the bellows 15 is tightly connected to the lower surface of the sand box 17. A telescopic rod 18 is fixedly installed on the upper surface of the base plate 1. A circular support ring 19 is fixedly connected to the head of the telescopic rod 18. The circular support ring 19 is slidably sleeved on the outside of the bracket 11. The upper surface of the circular support ring 19 is tightly connected to the lower surface of the hinge rod 14. By pushing the circular support ring 19 with the telescopic rod 18, it can be pressed against the bottom of the hinge rod 14 and can be pushed upward, thereby ensuring that the bellows 15 is pressed against the bottom of the sand box 17, which is conducive to the combination and positioning for use. When the telescopic rod 18 is retracted, the circular support ring 19 is adjusted downward. The bellows 15 flips downward with the hinge rod 14 by its own weight, which can form a certain opening with the bottom of the sand box 17, thereby facilitating the sand dropping operation, which is convenient, efficient and easy to control.

[0027] Please see Figure 1 and Figure 2 Guide rods 2 are fixedly connected to both sides of the inner side of the circular support ring 19. The guide rods 2 are located on both sides of the bracket 11. A guide ring 21 is fixed to one end of the guide rod 2. The guide ring 21 is slidably sleeved on the outer surface of the bracket 11. The hinge rod 14 is slidably connected to the upper surface of the circular support ring 19 and is located on both sides of the bracket 11. The guide rod and the guide ring are connected by the circular support ring, which can be combined for guidance and support to ensure the stability of the circular support rod in vertical adjustment. The guide ring 21 slides on the surface of the bracket 11 to guide and support the circular support ring 19, improve the stability of vertical adjustment, and facilitate combined use.

[0028] Please see Figure 2 and Figure 4A support cylinder 22 is fixedly connected to one end of the lower surface of the bellows 15. A support spring 23 is slidably installed inside the support cylinder 22. A support rod 24 is fixedly connected to one end of the support spring 23. The support rod 24 is slidably installed inside the support cylinder 22. A support block 25 is fixedly connected to the lower end of the support rod 24. A support ball 26 is slidably connected to the lower end of the support block 25. The support ball 26 is slidably connected to the upper surface of the base plate 1. The support cylinder connects the support spring and the support rod. Combined with the support ball at the bottom, the bellows can be supported and positioned. At the same time, it can be compressed and avoided to prevent interference during flipping. It is convenient for combined use and easy to stabilize. The support ball 26 rolls on the surface of the base plate 1 for support, which is convenient for adjusting the position for use. The support spring 23 presses against the support rod 24 to provide auxiliary support for the bellows 15 and ensure stability during adjustment. When flipping downwards for adjustment, the support spring 23 can be compressed inside the bellows by the support rod 24 to avoid interference, which is convenient for adjustment and easy to stabilize.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A tilting and dropping sand-making machine for investment casting, comprising a base plate (1), wherein a fixing frame (16) is fixedly connected to one side of the upper surface of the base plate (1), and a sand box (17) is fixedly connected to one end of the fixing frame (16), wherein the sand box (17) is suspended and fixed to the upper end of the base plate (1), characterized in that: A bracket (11) is fixedly connected to the middle position of the base plate (1). A motor (12) is fixedly installed inside the upper end of the bracket (11). A crossbar (13) is rotatably installed at one end of the motor (12). Both ends of the crossbar (13) are hinged to hinge rods (14). A bellows (15) is fixedly connected to one end of the hinge rod (14). The bellows (15) are symmetrically distributed on both sides of the bracket (11). The upper surface of the bellows (15) is tightly connected to the lower surface of the sand box (17). A telescopic rod (18) is fixedly installed on the upper surface of the base plate (1). A circular support ring (19) is fixedly connected to the head of the telescopic rod (18). The circular support ring (19) is slidably sleeved on the outside of the bracket (11). The upper surface of the circular support ring (19) is tightly connected to the lower surface of the hinge rod (14).

2. An inverted shakeout type sand floater for investment casting according to claim 1, characterized in that: Guide rods (2) are fixedly connected to both sides of the inner side of the circular support ring (19), and the guide rods (2) are located on both sides of the bracket (11).

3. An inverted shakeout type sand floater for investment casting according to claim 2, characterized in that: One end of the guide rod (2) is fixed with a guide ring (21), and the guide ring (21) is slidably sleeved on the outer surface of the bracket (11).

4. An inverted shakeout type sand mill for investment casting according to claim 1, wherein: The hinge rod (14) is slidably connected to the upper surface of the circular support ring (19) and located on both sides of the bracket (11).

5. An inverted knock-out type sand floater for investment casting according to claim 1, wherein: A support cylinder (22) is fixedly connected to one end of the lower surface of the bellows (15), and a support spring (23) is slidably installed inside the support cylinder (22).

6. An inverted knock-out type sand floater for investment casting according to claim 5, wherein: One end of the support spring (23) is fixedly connected to a support rod (24), and the support rod (24) is slidably installed inside the support cylinder (22).

7. An inverted knock-out type sand floater for investment casting according to claim 6, wherein: The lower end of the support rod (24) is fixedly connected to a support block (25), and the lower end of the support block (25) is rotatably connected to a support ball (26), which is rotatably connected to the upper surface of the base plate (1).

Images