Precision casting dustproof device

Abstract

The utility model belongs to the technical field of casting equipment, and particularly relates to a precision casting dustproof device which comprises a shakeout machine, a cover plate, a dust remover and a connecting pipeline, the shakeout machine comprises a base, a rack, a spring, a vibration motor, a screen plate and detachable #-shaped grids, the cover plate is movably arranged above the shakeout machine and is opened and closed through a guide rail, and a sealing gasket is arranged on the edge of the cover plate. And the bottom of the shakeout machine is connected with a dust remover through a pipeline. Through closed shakeout operation and a high-efficiency dust removal system, dust overflow is remarkably reduced, the working environment is improved, and the device is reasonable in structure, convenient to operate and suitable for clean production of precision casting.

Description

Technical Field

[0001] This utility model relates to the field of casting equipment technology, and in particular to a dust prevention device for precision casting. Background Technology

[0002] In the precision casting production process, the sand removal process is a key step in separating the casting from the sand mold. Traditional sand removal equipment, especially vibrating sand removal machines, easily generates a large amount of dust during high-speed vibration. This dust not only pollutes the workshop environment and affects the health of operators, but also damages the precision and service life of the equipment. In the existing technology, although some sand removal equipment is equipped with simple dust covers or dust suction ports, there are often problems such as inconvenient dust removal and cumbersome operation, making it difficult to achieve efficient and continuous dust control. Especially when processing large or irregularly shaped castings, the existing dustproof structure is often unable to adapt to different working conditions, resulting in serious dust overflow.

[0003] Therefore, there is an urgent need for a precision casting dust prevention device with a reasonable structure that is easy to operate and maintain, in order to solve the problems of large dust generation, serious environmental pollution, and easy equipment damage in the existing technology during the sand removal process. Utility Model Content

[0004] Based on the technical problems existing in the prior art, this utility model proposes a precision casting dustproof device.

[0005] This utility model proposes a precision casting dust prevention device, including a sand removal machine, a cover plate, a dust collector, and connecting pipes;

[0006] The sand removal machine includes a base, a frame, springs, a vibrating motor, a screen plate, and a grid. The frame is supported above the base by springs, the vibrating motor is mounted on the frame, the screen plate is located above the frame, and the grid is located above the screen plate for placing castings.

[0007] The cover plate is hinged or slidably disposed above the sand removal machine to enclose the sand removal operation area;

[0008] The dust collector is connected to the inside of the sand removal machine through a pipe and is used to suck up and collect dust. The pipe is a flexible hose with clamps at the interface.

[0009] A handle is provided above the cover plate, and a guide rail and positioning mechanism are provided between the cover plate and the sand removal machine.

[0010] Preferably, the cover plate is a split structure, including a left cover plate and a right cover plate, which are slidably mounted on both sides of the sand removal machine via guide rails. The guide rails are located on both sides of the upper part of the sand removal machine frame, and positioning protrusions are provided on the guide rails. Stop blocks corresponding to the positioning protrusions are provided on the outer side of the cover plate. Rotatable fixing parts are provided on both sides of the sand removal machine to fix the cover plate in a closed state, and rubber pads that contact the fixing parts are provided at the edge of the cover plate.

[0011] Preferably, the cover plate can also be a single-opening structure. The cover plate is slidably mounted above the sand removal machine via a guide rail. The guide rail is located on both sides of the upper part of the sand removal machine frame. The guide rail is provided with positioning protrusions. The outer side of the cover plate is provided with a stop block corresponding to the positioning protrusions. A rotating fixing member is provided on one side of the sand removal machine to fix the cover plate in a closed state. A rubber pad is provided at the edge of the cover plate to contact the fixing member.

[0012] Preferably, the bottom of the sand removal machine is provided with an ash discharge pipe, which is connected to the dust collector through a pipeline.

[0013] Preferably, the grid is a detachable structure, which facilitates adjustment or cleaning according to different casting sizes.

[0014] Preferably, the dust collector is a bag filter or a cartridge filter, and is equipped with a dust collection box.

[0015] Preferably, the vibrating motor of the sand removal machine is equipped with a vibration damping pad to reduce vibration transmission and noise.

[0016] Compared with the prior art, the present invention provides a precision casting dustproof device, which has the following beneficial effects:

[0017] 1. Excellent sealing and dust prevention effect: Through the double / single opening cover and rubber gasket sealing structure, combined with the fastener locking design, the sand drop area is fully enclosed to prevent dust from overflowing; when paired with a high-efficiency dust collector, the dust capture efficiency reaches more than 99.5%, which greatly improves the air quality in the workshop.

[0018] 2. Strong operability and adaptability: The guide rail cover opens and closes smoothly, and the handle design conforms to ergonomics, allowing for operation by a single person; the detachable grid supports the operation of castings of different sizes and quantities, and the two cover structures are suitable for different workshop spaces, making it widely applicable.

[0019] 3. High ease of maintenance: The dust collection box features a drawer-type design, a grid-like snap-fit ​​connection, and easily replaceable rubber pads, allowing for cleaning and maintenance without the need for complicated tools, thus reducing equipment operation and maintenance costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a precision casting dustproof device proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the bottom structure of the sand removal machine for a precision casting dust prevention device proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the cover plate of the precision casting dustproof device proposed in this utility model when it is opened;

[0023] Figure 4This is a schematic diagram of the cover plate and guide rail structure of a precision casting dustproof device proposed in this utility model;

[0024] Figure 5 This utility model Figure 4 A magnified structural diagram at point A;

[0025] Figure 6 This utility model Figure 2 A magnified structural diagram at point B.

[0026] In the diagram: 1. Sand removal machine; 101. Base; 102. Frame; 103. Spring; 104. Vibration motor; 105. Mesh plate; 106. Grid; 2. Cover plate; 3. Ash discharge pipe; 4. Dust collector; 5. Pipe; 6. Guide rail; 7. Handle; 8. Positioning protrusion; 9. Stop block; 10. Fixing component; 11. Rubber pad. Detailed Implementation

[0027] 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.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Reference Figures 1-6 A precision casting dust prevention device includes a sand removal machine 1, a cover plate 2, a dust collector 4, and a connecting pipe 5. The components work together to achieve both sealed dust prevention and efficient dust removal. The specific structure and operation details are as follows:

[0030] The sand removal machine 1 is the core operating unit of the device. The base 101 is welded from Q235 high-strength steel plate, with pre-drilled holes for anchor bolts at the bottom for secure fixing to the ground, preventing overall displacement during operation. The frame 102 is constructed from rectangular steel tubing, combining rigidity and lightweight features. Sixteen sets of high-temperature resistant springs 103 are symmetrically mounted on the base 101. The springs 103 are made of 65Mn spring steel, with a stable elastic coefficient, effectively buffering vibration impact. The vibration motor 104 is bolted to the bottom of the frame 102. An eccentric block is provided at the motor output end, allowing adjustment of the vibration intensity to suit different sand types. The connection between the motor and the frame 102 is reinforced with... The installation of 6mm thick rubber vibration damping pads reduces the intensity of vibration transmitted to the base 101 and reduces operating noise, keeping the workshop ambient noise below 85dB. The screen plate 105 is made of 304 stainless steel with a thickness of 8mm and has uniformly opened sieve holes with a diameter of 8-12mm on its surface, which ensures that sand particles fall smoothly and provides stable support for the castings. The grid 106 above the screen plate 105 is made of ABS engineering plastic and can be detachably connected to the screen plate 105 through a snap-fit ​​structure. The grid size can be flexibly adjusted according to the size of the castings, with the side length of a single grid ranging from 150-300mm. Multiple grids can be spliced ​​together to meet the needs of simultaneous operation of large or multiple small castings.

[0031] Cover plate 2 offers two opening and closing structures to suit different workshop space layouts:

[0032] If a split structure is adopted, the cover plate 2 is divided into left and right parts, with each part weighing less than 20kg for easy manual operation. The cover plate 2 is made of cold-rolled steel plate, bent and formed, with an anti-static coating to prevent dust accumulation. The guide rail 6 is made of wear-resistant cast iron with a chrome-plated surface to reduce the coefficient of sliding friction. The bottom of the cover plate 2 has a groove that matches the guide rail 6, and a nylon slider is embedded in the groove to further improve the smoothness of sliding. The stop block 9 at the end of the guide rail 6 is rectangular and fits precisely with the positioning protrusion 8 on the outside of the cover plate 2 to prevent the cover plate 2 from slipping during sliding. The outside of the cover plate 2 is welded with an anti-slip handle 7, which is covered with a rubber anti-slip sleeve, so that it can be firmly gripped even when wearing gloves. The fixing parts 10 on both sides of the sand removal machine 1 adopt an eccentric wheel structure. After the cover plate 2 is closed, rotating the eccentric wheel can squeeze the nitrile rubber pad 11 on the edge of the cover plate. The rubber pad 11 is 10mm thick and the compression amount can reach 3-5mm. It can fill the gap between the cover plate 2 and the frame 102 to achieve sealing and dust prevention, and can also play a buffering role during vibration to prevent the cover plate 2 from shifting or the fixing parts 10 from loosening.

[0033] If a single-opening structure is adopted, only a single cover plate 2, a single set of guide rails 6 and a single fixing component 10 are required. The size of the cover plate 2 is customized according to the width of the sand removal machine 1 table, and it can cover a working area of ​​up to 1.5m wide. The guide rail 6 has the same matching method and sealing structure as the double-opening type, which is suitable for use in workshops with narrow spaces. The attached drawings of this application show the layout of the single-opening structure.

[0034] A DN100 steel ash discharge pipe 3 is welded to the center of the bottom of the sand removal machine 1. The connection between the ash discharge pipe 3 and the pipe 5 is sealed with a flange. The pipe 5 is made of negative pressure resistant polyester fiber hose with a smooth inner wall that does not easily accumulate dust. Both ends are locked with stainless steel clamps to ensure that the interface is airtight. The dust collector 4 is preferably a bag or cartridge dust collector with a built-in high-pressure fan and PTFE membrane filter element. The filtration efficiency can reach more than 99.5%, which can effectively capture dust particles with a diameter of 0.3μm or larger. The dust collector 4 has a drawer-type dust collection box at the bottom. A transparent PC observation window is installed on the side of the dust collection box, which can be used to visually view the amount of dust accumulation. When the dust reaches 2 / 3 of the box capacity, the dust collection box can be pulled out for quick cleaning without stopping the machine for disassembly.

[0035] In actual operation, the operator first pulls the cover plate 2 along the guide rail 6 using the handle 7, adjusts the grid combination of the grid 106 according to the size of the casting, and places the casting to be desanded stably in the grid 106, ensuring that the casting fits against the inner wall of the grid to avoid displacement during vibration. If multiple small castings are processed at the same time, the spacing between the castings must be no less than 50mm to prevent them from colliding and being damaged. After closing the cover plate 2, rotate the fixing part 10 to make the rubber pad 11 fit tightly against the frame 102. After confirming that the cover plate 2 is not loose, start the dust collector 4 to preheat for 30 seconds. After the fan reaches the rated negative pressure, start the vibration motor 104. The dust generated during the desanding process is sealed inside the desanding machine 1. Under the action of negative pressure, it is sucked into the dust collector 4 through the ash discharge pipe 3 and the pipe 5. The dust is intercepted by the filter element, and the purified air is discharged by the fan. After the operation is completed, first turn off the vibration motor 104, wait for the dust collector 4 to continue running for 1 minute to completely suck up the residual dust before turning off the equipment. Finally, open the cover plate 2, take out the casting and clean the sand particles remaining on the surface of the mesh plate 105. Regularly check the wear of the rubber gasket 11. If aging and cracking occur, it should be replaced in time to ensure the sealing effect.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A precision casting dust prevention device, comprising a sand removal machine (1), a cover plate (2), a dust collector (4), and a connecting pipe (5), characterized in that: The sand removal machine (1) includes a base (101), a frame (102), a spring (103), a vibration motor (104), a screen plate (105), and a grid (106). The frame (102) is supported above the base (101) by the spring (103). The vibration motor (104) is installed on the frame (102). The screen plate (105) is located above the frame (102), and the grid (106) is located above the screen plate (105). The cover plate (2) is movably installed above the sand removal machine (1) to close off the sand removal operation area; The dust collector (4) is connected to the inside of the sand removal machine (1) through a pipe (5); The cover plate (2) is provided with a handle (7), and a guide rail (6) and a positioning mechanism are provided between the cover plate (2) and the sand removal machine (1).

2. The precision casting dustproof device according to claim 1, characterized in that: The cover plate (2) is a split structure, including a left cover plate and a right cover plate, which are slidably mounted on both sides of the sand removal machine (1) via guide rails (6). The guide rails (6) are located on both sides of the upper part of the sand removal machine frame (102). The guide rails (6) are provided with positioning protrusions (8). The outer side of the cover plate (2) is provided with stop blocks (9) corresponding to the positioning protrusions (8). Rotary fixing parts (10) are provided on both sides of the sand removal machine (1) to fix the cover plate (2) in a closed state. Rubber pads (11) that contact the fixing parts (10) are provided at the edge of the cover plate (2).

3. The precision casting dustproof device according to claim 1, characterized in that: The cover plate (2) is a single-opening structure. The cover plate (2) is slidably set above the sand removal machine (1) via the guide rail (6). The guide rail (6) is set on both sides of the upper part of the sand removal machine frame (102). The guide rail (6) is provided with positioning protrusions (8). The outer side of the cover plate (2) is provided with a stop block (9) corresponding to the positioning protrusions (8). A rotating fixing member (10) is provided on one side of the sand removal machine (1) to fix the cover plate (2) in a closed state. A rubber pad (11) is provided at the edge of the cover plate (2) to contact the fixing member (10).

4. The precision casting dustproof device according to claim 1, characterized in that: The bottom of the sand removal machine (1) is provided with a ash discharge pipe (3), which is connected to the dust collector (4) through a pipe (5).

5. A precision casting dustproof device according to claim 1, characterized in that: The grid (106) is a detachable structure.

6. A precision casting dustproof device according to claim 1, characterized in that: The dust collector (4) is a bag filter or cartridge filter dust collector and is equipped with a dust collection box.

7. A precision casting dustproof device according to claim 1, characterized in that: The vibration motor (104) is equipped with a vibration damping pad.

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