High-stability cantilever discharge door device for sand mixer

Abstract

The utility model relates to the technical field of sand mixer unloading, and discloses a high-stability cantilever unloading door device for a sand mixer, which comprises a mounting table, the top of the mounting table is fixedly connected with a mounting plate, the inner side surface of the mounting plate is fixedly connected with a fixed column I, and the surface of the mounting plate is sleeved with an air cylinder; a second fixing column is fixedly connected to the top of the air cylinder, a first connecting rod is rotationally connected to the surface of the second fixing column, a second connecting rod is rotationally connected to the surface of the second fixing column, and a connecting table is rotationally connected into the first connecting rod. By arranging the air cylinder, when the air cylinder is started and drives the air cylinder to move forwards, the top end of the air cylinder drives the second fixing column to move upwards, at the moment, the included angle between the first connecting rod and the second connecting rod is increased till the discharging door is clamped into the clamping groove, and the position between the discharging door and the clamping groove is sealed through the sealing gasket; and the limiting table is clamped in the sand mixer body to close the discharging opening, so that the sealing stability of the discharging opening is ensured.

Description

Technical Field

[0001] This utility model relates to the field of sand mixer unloading technology, specifically a cantilever unloading gate device for a sand mixer with high stability. Background Technology

[0002] A sand mixer is an important piece of equipment used in foundries to mix resin molding sand and core sand. Its main function is to mix old sand, new sand, molding sand binder and auxiliary materials evenly to meet different needs of foundry production.

[0003] After the sand mixer finishes unloading, the unloading gate needs to be closed manually. However, when using a conventional hydraulic rod to close the gate, it can only be kept half-open, which cannot increase the opening angle between the gate and the discharge port. At the same time, when using a hydraulic rod to close the gate, the strength of the sand inside the mixer against the gate relies entirely on the hydraulic rod for support, which can easily create gaps at the connection point. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a cantilever unloading gate device for a sand mixer with high stability, including a mounting platform. A mounting plate is fixedly connected to the top of the mounting platform. A fixing column one is fixedly connected to the inner surface of the mounting plate. A cylinder is sleeved on the surface of the mounting plate. A fixing column two is fixedly connected to the top of the cylinder. A connecting rod one is rotatably connected to the surface of the fixing column two. A connecting rod two is rotatably connected to the surface of the fixing column two. A connecting platform is rotatably connected inside the connecting rod one. An unloading gate is fixedly connected to the rear end of the connecting platform. A limiting platform is fixedly connected to the rear end of the unloading gate. A fixing platform is fixedly connected to the rear end of the limiting platform. An electric hydraulic telescopic rod is installed inside the fixing platform. A sealing gasket is fixedly connected to the rear end of the unloading gate.

[0005] Through the above technical solution, by setting up a cylinder, starting the cylinder, and driving the cylinder forward, the top of the cylinder will drive the fixed column two to move upward. At this time, the included angle between connecting rod one and connecting rod two will increase until the unloading gate is engaged with the inside of the slot. The sealing gasket will seal the position between the unloading gate and the slot, and the limiting platform will be engaged inside the body of the sand mixer to close the unloading port and ensure the stability of the unloading port seal.

[0006] As a further improvement to the above solution, there are two mounting plates, which are symmetrically and evenly distributed on the surface with respect to the top center of the mounting platform. The two ends of the fixing column are fixedly connected to the surface between the two mounting plates.

[0007] With the above technical solution, two mounting plates are set and symmetrically and evenly distributed on the surface with respect to the top center of the mounting platform. One end of the fixing column is connected to the surface between the two mounting plates. This symmetrical distribution design enables more uniform force distribution. During the operation of the unloading gate, the force generated by both opening and closing actions can be evenly distributed on the mounting platform, avoiding device shaking or instability caused by uneven force distribution, thereby improving the stability of the entire cantilever unloading gate device.

[0008] As a further improvement to the above scheme, there are two connecting rods, and the two connecting rods are evenly distributed symmetrically around the center of the front of the connecting platform inside the connecting platform.

[0009] Through the above technical solution, connecting rod one and connecting rod two are each configured as two rods, symmetrically and evenly distributed inside the connecting platform with respect to the center of the front of the connecting platform. This symmetrically distributed connecting rod structure helps to evenly transmit force during the movement of the unloading gate, ensuring the stability of the unloading gate during opening and closing. When the unloading gate operates, the two connecting rods one and two can work together to evenly distribute the force, reducing excessive local stress and thus enhancing the stability of the unloading gate device.

[0010] As a further improvement to the above solution, the front end of the mounting platform is fixedly connected to the sand mixer body, the outer surface of the sand mixer body is provided with a slot, the inner wall of the sand mixer body is fixedly connected to a limiting plate, and the bottom of the limiting plate is provided with a limiting hole.

[0011] Through the above technical solution, by setting a limit plate, when the cylinder stops running, the electric hydraulic telescopic rod is activated, and the output end of the electric hydraulic telescopic rod moves upward until the output end of the electric hydraulic telescopic rod is sleeved inside the limit hole, connecting the entire limit plate to the sand mixer body, ensuring a more stable connection between the entire unloading gate and the sand mixer body.

[0012] As a further improvement to the above solution, the rear end of the unloading gate is located inside the slot, the rear end of the sealing gasket is located on the surface of the sand mixer body, and the limiting platform is located inside the sand mixer body.

[0013] As a further improvement to the above solution, two limiting holes are provided, and the two limiting holes are evenly distributed on the surface symmetrically with respect to the bottom center of the limiting plate. The output end of the electric hydraulic telescopic rod is located inside the limiting hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model uses a cylinder. When the cylinder is activated, it propels the material forward, causing the top of the cylinder to move the second fixed column upward. At this time, the angle between the first and second connecting rods increases until the unloading gate is engaged with the inside of the slot. The sealing gasket seals the position between the unloading gate and the slot, while the limiting platform is engaged inside the main body of the sand mixer, closing the unloading port and ensuring the stability of the unloading port's seal.

[0016] This utility model, by setting a limiting plate, activates the electric hydraulic telescopic rod after the cylinder stops running. The output end of the electric hydraulic telescopic rod moves upward until it is fitted into the limiting hole, connecting the entire limiting plate to the main body of the sand mixer, thus ensuring a more stable connection between the entire unloading gate and the main body of the sand mixer. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of the sand mixer and the unloading gate of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the rear end of the limiting platform of this utility model;

[0020] Figure 4 This is a schematic diagram of the front structure of the sand mixer body of this utility model;

[0021] Figure 5 This is a schematic diagram of the rear structure of the overall device of this utility model.

[0022] In the diagram: 1. Mounting platform; 2. Mounting plate; 3. Fixed column one; 4. Cylinder; 5. Fixed column two; 6. Connecting rod one; 7. Connecting rod two; 8. Connecting platform; 9. Unloading gate; 10. Limiting platform; 11. Fixed platform; 12. Electro-hydraulic telescopic rod; 13. Sealing gasket; 14. Sand mixer body; 15. Slot; 16. Limiting slot; 17. Limiting hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example 1:

[0025] Please combine Figure 1-5This embodiment of a cantilever unloading gate device for a sand mixer with high stability includes a mounting platform 1, a mounting plate 2 fixedly connected to the top of the mounting platform 1, a fixing column 3 fixedly connected to the inner surface of the mounting plate 2, a cylinder 4 sleeved on the surface of the mounting plate 2, a fixing column 5 fixedly connected to the top of the cylinder 4, a connecting rod 6 rotatably connected to the surface of the fixing column 5, a connecting rod 7 rotatably connected to the surface of the fixing column 5, a connecting platform 8 rotatably connected inside the connecting rod 6, an unloading gate 9 fixedly connected to the rear end of the connecting platform 8, a limiting platform 10 fixedly connected to the rear end of the unloading gate 9, a fixing platform 11 fixedly connected to the rear end of the limiting platform 10, an electric hydraulic telescopic rod 12 installed inside the fixing platform 11, and a sealing gasket 13 fixedly connected to the rear end of the unloading gate 9.

[0026] There are two mounting plates 2, which are symmetrically and evenly distributed on the surface of the mounting platform 1 with the top center of the mounting platform 1. The two ends of the fixing column 3 are fixedly connected to the surface between the two mounting plates 2.

[0027] There are two connecting rods 6, and the two connecting rods 7 are evenly distributed symmetrically around the center of the front of the connecting platform 8 inside the connecting platform 8.

[0028] The front end of the mounting platform 1 is fixedly connected to the sand mixer body 14. The outer surface of the sand mixer body 14 is provided with a slot 15. The inner wall of the sand mixer body 14 is fixedly connected to a limiting plate 16. The bottom of the limiting plate 16 is provided with a limiting hole 17.

[0029] The rear end of the unloading gate 9 is located inside the slot 15, the rear end of the sealing gasket 13 is located on the surface of the sand mixer body 14, and the limiting platform 10 is located inside the sand mixer body 14.

[0030] There are two limiting holes 17. The two limiting holes 17 are evenly distributed on the surface with the bottom center of the limiting plate 16 symmetrically. The output end of the electric hydraulic telescopic rod 12 is located inside the limiting hole 17.

[0031] The implementation principle of a cantilever discharge gate device for a sand mixer with high stability in this embodiment is as follows: When closing the discharge gate 9 of the sand mixer, the cylinder 4 is first started. When the cylinder 4 moves forward, the top of the cylinder 4 will drive the fixed column 5 to move upward. At this time, the included angle between the connecting rod 6 and the connecting rod 7 will increase until the discharge gate 9 is engaged with the inside of the slot 15. The sealing gasket 13 seals the position between the discharge gate 9 and the slot 15, and the limiting platform 10 is engaged with the inside of the sand mixer body 14 to close the discharge port. After the cylinder 4 stops running, the electric hydraulic telescopic rod 12 is started. The output end of the electric hydraulic telescopic rod 12 moves upward until the output end of the electric hydraulic telescopic rod 12 is sleeved inside the limiting hole 17, connecting the entire limiting platform 10 with the sand mixer body 14 to ensure the stability of the connection between the entire discharge gate 9 and the sand mixer body 14. When it is necessary to open the discharge gate 9, the above process is reversed to open the discharge gate 9.

[0032] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A cantilever discharge gate device for a sand mixer with high stability, characterized in that: The system includes an installation platform (1), a mounting plate (2) fixedly connected to the top of the installation platform (1), a fixing column (3) fixedly connected to the inner surface of the mounting plate (2), a cylinder (4) sleeved on the surface of the mounting plate (2), a fixing column (5) fixedly connected to the top of the cylinder (4), a connecting rod (6) rotatably connected to the surface of the fixing column (5), a connecting rod (7) rotatably connected to the surface of the fixing column (5), a connecting platform (8) rotatably connected inside the connecting rod (6), a discharge door (9) fixedly connected to the rear end of the connecting platform (8), a limiting platform (10) fixedly connected to the rear end of the discharge door (9), a fixing platform (11) fixedly connected to the rear end of the limiting platform (10), an electric hydraulic telescopic rod (12) installed inside the fixing platform (11), and a sealing gasket (13) fixedly connected to the rear end of the discharge door (9).

2. The cantilever unloading gate device for a sand mixer with high stability according to claim 1, characterized in that: There are two mounting plates (2), and the two mounting plates (2) are evenly distributed on the surface with the top center of the mounting platform (1) symmetrical. The two ends of the fixing column (3) are fixedly connected to the surface between the two mounting plates (2).

3. The cantilever unloading gate device for a sand mixer with high stability according to claim 1, characterized in that: There are two connecting rods (6), and the two connecting rods (7) are evenly distributed symmetrically around the center of the front of the connecting platform (8) inside the connecting platform (8).

4. The cantilever unloading gate device for a sand mixer with high stability according to claim 1, characterized in that: The front end of the mounting platform (1) is fixedly connected to the sand mixer body (14). The outer surface of the sand mixer body (14) is provided with a slot (15). The inner wall of the sand mixer body (14) is fixedly connected to a limiting plate (16). The bottom of the limiting plate (16) is provided with a limiting hole (17).

5. A cantilever discharge gate device for a sand mixer with high stability according to claim 4, characterized in that: The rear end of the unloading gate (9) is located inside the slot (15), the rear end of the sealing gasket (13) is located on the surface of the sand mixer body (14), and the limiting platform (10) is located inside the sand mixer body (14).

6. The cantilever discharge gate device for a sand mixer with high stability according to claim 4, characterized in that: The number of the limiting holes (17) is set to two, and the two limiting holes (17) are evenly distributed on the surface with the bottom center of the limiting plate (16) symmetrically. The output end of the electric hydraulic telescopic rod (12) is set inside the limiting holes (17).

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