Sand casting semi-closed surface sand cleaning platform

Abstract

The utility model discloses a sand casting semi -closed surface sand -cleaning platform of mould piece, including sand -cleaning box, casting mobile car, its characterized in that one group of sand -cleaning box opposite sides is respectively arranged as access door, and the other group of sand -cleaning box opposite sides is respectively provided with sand -cleaning work station table and dust removal system, and multiple -station sand -cleaning unit is arranged on sand -cleaning work station table, the rotating table of bearing mobile car is equipped in sand -cleaning box bottom, and the sand recovery device is equipped around the rotating table. Semi -closed sand -cleaning box structure greatly reduces dust dispersion, makes the working environment friendly, and the cooperation of rotating table and multiple -station sand -cleaning unit makes sand -cleaning efficiency greatly promote, can complete sand blasting, brush grinding, sprue cutting and other operations synchronously, and obtains dead angle one -time processing effect, and waste sand is fully recovered, satisfies the assembly line operation requirement, and low -speed operation meets semi -automatization operation engineering, and is safe and stable.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a semi-enclosed surface sand cleaning platform for sand castings, which is suitable for the efficient cleaning and recycling of surface sand particles, gating and riser residues and flash after castings are demolded. Background Technology

[0002] Traditional sand removal operations for castings suffer from the following problems: open-type sand removal leads to dust dispersion, polluting the environment and endangering workers' health; the sand removal tools are limited, requiring multiple transfers of castings, resulting in low efficiency; and the waste sand recovery rate is low, leading to serious resource waste. For example, patent publication number CN110026543A discloses a sand removal device for the surface of sand castings, comprising a frame, rubber rollers, a sand removal mechanism, and a tilting mechanism. The sand removal mechanism includes hydraulic cylinders, circular guide rails, drive mechanisms, brackets, cleaning brushes, and motor I. The circular guide rails are mounted on the frame via two hydraulic cylinders, and two drive mechanisms are mounted on the circular guide rails. Each drive mechanism has a bracket on which a cleaning brush is rotatably mounted. Two motors I are fixedly mounted on two brackets, with their power output ends fixedly connected to the two cleaning brushes respectively. Two tilting mechanisms are placed opposite each other on both sides of the frame.

[0003] While existing technologies include enclosed sand-cleaning equipment, they generally suffer from problems such as inconvenient workstation switching and insufficient multi-functional integration. For example, a rapid sand-cleaning device for the surface of sand castings, disclosed in patent publication number CN114700887A, includes a cleaning box, a sandblasting device, and a clamping device. The sandblasting device and the clamping device are located in the cleaning box, and the clamping device is rotatably connected to the cleaning box for clamping and fixing the sand casting. The sandblasting device is equipped with an acceleration channel and a feeding device. The feeding device is used to send the cleaning sand in the cleaning box into the acceleration channel. High-pressure airflow is introduced into the acceleration channel to accelerate the cleaning sand through the acceleration channel and impact the casting to clean the sand and gravel from the casting.

[0004] Therefore, this utility model proposes a semi-enclosed sand cleaning system that integrates a rotating workstation, multi-tool collaboration, and waste sand recycling. Summary of the Invention

[0005] The purpose of this utility model is to solve the above-mentioned technical problems and provide a semi-enclosed surface sand cleaning platform for sand castings. It has a semi-enclosed structure, assembly line operation, and can clean all parts of large castings except the bottom surface at one time, reducing dust emission and providing multi-station sand cleaning units with no dead corners.

[0006] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a semi-enclosed surface sand cleaning platform for sand castings, including a sand cleaning box and a casting moving vehicle, characterized in that one set of opposite sides of the sand cleaning box is respectively set as an entrance and exit, and the other set of opposite sides of the sand cleaning box is respectively set as a sand cleaning station and a dust removal system, and a multi-station sand cleaning unit is configured on the sand cleaning station; a rotating platform for carrying the moving vehicle is provided at the bottom of the sand cleaning box; and a sand recovery device is provided around the rotating platform.

[0007] In the aforementioned semi-enclosed surface sand cleaning platform for sand castings, preferably, the sand cleaning box is provided with outer steel rails on opposite sides in the doorway direction, and the casting moving vehicle is provided with wheelsets that match the outer steel rails; an inner steel rail that cooperates with the outer steel rails is provided on the rotating platform.

[0008] In the aforementioned semi-enclosed surface sand cleaning platform for sand castings, preferably, the rotary table includes a base, a vertical shaft on the base, a sprocket on the vertical shaft, a table panel on the top of the vertical shaft, and an inner steel rail fixed on the table panel.

[0009] In the aforementioned semi-enclosed surface sand cleaning platform for sand castings, preferably, the sprocket is connected to the drive device via a chain, and the drive device includes a variable frequency motor with a speed adjustment range of 0.5-3 rpm.

[0010] In the aforementioned semi-enclosed surface sand cleaning platform for sand castings, preferably, the sand recovery device includes a conical funnel surrounding the rotating platform, wherein the inner diameter of the conical funnel is smaller than the diameter of the platform panel, and the outer diameter of the conical funnel is larger than the diameter of the platform panel.

[0011] In the aforementioned semi-enclosed surface sand cleaning platform for sand castings, preferably, the bottom of the conical funnel is connected to the sand recovery bin.

[0012] In the aforementioned semi-enclosed surface sand cleaning platform for sand castings, preferably, the multi-station sand cleaning unit includes a multi-tool robotic arm, the main arm of which is a 6-axis robotic arm, and its end is integrated with a quick-change interface. The quick-change interface is equipped with a high-pressure air spray gun, a rotating wire brush, a vibrating sand cleaning needle, and a gate treatment unit.

[0013] In the aforementioned semi-enclosed surface sand cleaning platform for sand castings, preferably, the gate treatment unit includes a hydraulic shear, an angle grinder bracket, and a plasma gate cutter.

[0014] In the aforementioned semi-enclosed surface sand cleaning platform for sand castings, preferably, the dust removal system includes an annular dust collection hood located at the top of the sand cleaning box and a side suction port. The annular dust collection hood and the side suction port are connected to a cyclone separator via a dust suction pipe, and the cyclone separator is equipped with a dust collection bag.

[0015] In the aforementioned semi-enclosed surface sand cleaning platform for sand castings, preferably, the sand cleaning box is provided with a transparent window and a glove opening on the side facing the sand cleaning station, and a lighting lamp is also provided inside the sand cleaning box.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. The semi-enclosed sand cleaning box structure greatly reduces dust emission and makes the working environment more friendly; 2. The combination of the rotary table and the multi-station sand removal unit greatly improves the sand removal efficiency, and can simultaneously complete operations such as sandblasting, brushing, and gate cutting, achieving a one-time treatment effect without dead angles; 3. Waste sand is fully recycled; 4. Meets the requirements of assembly line operation; low-speed operation conforms to semi-automated operation engineering, ensuring safety and stability. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of this utility model.

[0018] Figure 2 yes Figure 1 Right view of the sand cleaning box and rotating table.

[0019] Figure 3 This is a schematic diagram of the state structure of a rotating table bearing casting according to this utility model.

[0020] Figure 4 This is a schematic diagram of the main structure of a rotary table according to this utility model.

[0021] Figure 5 yes Figure 4 Top view of the rotating platform.

[0022] In the diagram: 1-Sand cleaning box, 101-Dust removal system, 102-Lighting lamp, 2-Rotating table, 201-Base, 202-Sprocket, 203-Tabletop, 204-Inner rail, 3-Outer rail, 4-Mobile vehicle, 5-Casting, 6-Multi-station sand cleaning unit, 7-Sand cleaning station, 8-Sand recovery device. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through embodiments and with reference to the accompanying drawings.

[0024] like Figure 1 As shown in the figure, this embodiment provides a semi-enclosed surface sand cleaning platform for sand castings, including a sand cleaning box 1 and a casting moving vehicle 4. The two are connected by steel rails to form an assembly line. Specifically, the sand cleaning box 1 is provided with outer steel rails 3 on opposite sides in the direction of the entrance and exit, and the casting moving vehicle 4 is provided with wheelsets that match the outer steel rails 3.

[0025] The sand cleaning box 1 has a rectangular structure with sliding doors on one pair of side walls. The other pair of opposite sides of the sand cleaning box 1 are equipped with sand cleaning workstations 7 (operating positions) and a dust removal system 101. The side of the sand cleaning box 1 facing the sand cleaning workstations 7 has a viewing window and a glove opening. LED array lighting 102 is installed on the top and sides of the interior of the sand cleaning box 1. The sand cleaning workstations 7 are equipped with multi-station sand cleaning units 6, such as… Figure 2 As shown, the multi-station sand cleaning unit 6 includes a multi-tool robotic arm. The main arm of the multi-tool robotic arm is a 6-axis robotic arm, and its end is integrated with a quick-change interface. A high-pressure air spray gun, a rotating wire brush, a vibrating sand cleaning needle, and a gate treatment unit are installed in conjunction with the quick-change interface. The dust removal system 101 is connected to external processing equipment via pipelines.

[0026] In the multi-station sand removal unit 6, the high-pressure air spray gun has a universal articulated arm, an air pressure of 0.6-0.8MPa, and is equipped with replaceable nozzles and a flat / rotating head structure, capable of handling large areas of sand buildup. The rotating wire brush has a flexible wire brush disc and an electric telescopic arm with a speed of 500-1500rpm, allowing it to reach deep into grooves / crevices for sand removal. The vibrating sand removal needle is specifically designed for treating sand accumulation in small gaps and corners. The gate treatment unit uses a plasma gate cutter with a suspended module and cooling spray, linked to the sand removal station. Alternatively, the gate treatment unit can also be a hydraulic shear, angle grinder stand, or other tools.

[0027] A rotating platform 2 supporting the mobile vehicle 4 is located at the center of the bottom of the sand cleaning box 1. A sand recovery device 8 is arranged around the rotating platform 2, such as... Figure 3 , Figure 4 As shown. The rotary table 2 includes a base 201, a vertical shaft, a sprocket 202, and a circular tabletop 203. The surface is covered with inner steel rails 204, which match the wheelsets of the moving vehicle 4. See [reference needed]. Figure 5 The rotary table 2 is driven by a variable frequency motor to drive the sprocket 202, and the speed can be adjusted between 0.5-3 rpm, realizing the conversion of the casting 5-station. An outer steel rail is laid on the opposite side of the sand cleaning box 1 in the direction of the entrance and exit, and the outer steel rail is integrated with the workshop assembly line. In addition, the sprocket 202 and the chain drive mechanism use conventional protective covers, and sealing strips and cloth are used to protect the parts that need to be sealed.

[0028] The sand recovery device 8 includes a conical funnel surrounding the rotating platform 2. The inner diameter of the conical funnel is smaller than the diameter of the platform 203, and the outer diameter of the conical funnel is larger than the diameter of the platform, to ensure that all falling waste sand enters the conical funnel. The bottom of the conical funnel is connected to the sand recovery bin.

[0029] The dust removal system 101 includes an annular dust collection hood located at the top of the sand cleaning box 1, with an air velocity of 1.2 m / s at the annular dust collection hood and an air velocity of 2.5 m / s at the side suction port. The annular dust collection hood and the side suction port are connected to a cyclone separator through a dust suction pipe. The cyclone separator is equipped with a pulse-type dust collector bag.

[0030] Working principle and process: The mobile cart 4, carrying the casting 5, enters the sand cleaning box 1 along the outer steel rail 3, and then turns to the sand cleaning station 7 via the rotary table 2; the multi-station sand cleaning unit 6 flexibly uses various tools to complete sandblasting, brushing, gate cutting and other operations according to the actual situation; waste sand is recovered through the conical funnel of the sand recovery device, and dust is collected by the dust removal system 101; after cleaning is completed, the rotary table 2 is reset, and the mobile cart 4 moves out to enter the next process.

[0031] Because the large casting 5 is quite heavy, it can be kept relatively stable by being fixed on the moving vehicle 4, while other positioning operations such as inserting irons and setting limit bolts are performed simultaneously. When the moving vehicle 4 and the casting 5 reach the rotary table 2, they are automatically locked by the drive device. During sand removal, the rotary table 2 rotates at a low speed and can be stopped (paused) when the sand removal surface is facing the sand removal station 7. The operator alternates between using the multi-station sand removal unit to perform main cleaning, finishing, and gate treatment. During this process, the fallen sand enters the sand recovery bin through the sand recovery device 8.

[0032] The above embodiments are illustrative of the present invention and not intended to limit it. Although the present invention has been described in conjunction with preferred embodiments, it should be understood that the present invention is not limited to the preferred embodiments. Those skilled in the art can make various equivalent modifications and substitutions to the technical solutions of the present invention based on its teachings. Therefore, the scope of the present invention should be defined by the claims, and all such equivalent modifications and substitutions fall within the protection scope of the present invention.

Claims

1. A semi-enclosed surface sand cleaning platform for sand castings, comprising a sand cleaning box (1) and a casting moving vehicle (4), characterized in that... One set of opposite sides of the sand cleaning box is set as an entrance and exit, and the other set of opposite sides of the sand cleaning box is set with a sand cleaning station (7) and a dust removal system (101). A multi-station sand cleaning unit (6) is configured on the sand cleaning station. A rotating platform (2) for carrying a mobile vehicle is provided at the bottom of the sand cleaning box. A sand recovery device (8) is provided around the rotating platform.

2. The semi-enclosed surface sand cleaning platform for sand castings according to claim 1, characterized in that, The sand cleaning box (1) is equipped with an outer steel rail (3) on the opposite side of the door and entrance, and the casting moving car (4) is equipped with wheelsets that match the outer steel rail; an inner steel rail (204) that matches the outer steel rail is provided on the rotating table (2).

3. The semi-enclosed surface sand cleaning platform for sand castings according to claim 2, characterized in that, The rotary table (2) includes a base (201), a vertical shaft on the base, a sprocket (202) on the vertical shaft, a table panel (203) on the top of the vertical shaft, and an inner steel rail (204) fixed on the table panel.

4. The semi-enclosed surface sand cleaning platform for sand castings according to claim 3, characterized in that, The sprocket (202) is connected to the drive device via a chain. The drive device includes a variable frequency motor with a speed adjustment range of 0.5-3 rpm.

5. A semi-enclosed surface sand cleaning platform for sand castings according to claim 3 or 4, characterized in that, The sand recovery device (8) includes a conical funnel surrounding the rotating platform (2), the inner diameter of which is smaller than the diameter of the platform panel (203), and the outer diameter of which is larger than the diameter of the platform panel.

6. A semi-enclosed surface sand cleaning platform for sand castings according to claim 5, characterized in that, The bottom of the conical funnel is connected to the sand recovery bin.

7. A semi-enclosed surface sand cleaning platform for sand castings according to claim 1, characterized in that, The multi-station sand cleaning unit (6) includes a multi-tool robotic arm. The main arm of the multi-tool robotic arm is a 6-axis robotic arm, and its end is integrated with a quick-change interface. The quick-change interface is equipped with a high-pressure air spray gun, a rotating wire brush, a vibrating sand cleaning needle, and a gate treatment unit.

8. A semi-enclosed surface sand cleaning platform for sand castings according to claim 7, characterized in that, The gate processing unit includes a hydraulic shear, an angle grinder bracket, and a plasma gate cutter.

9. A semi-enclosed surface sand cleaning platform for sand castings according to claim 1, characterized in that, The dust removal system (101) includes an annular dust collection hood located on top of the sand cleaning box (1) and a side suction port. The annular dust collection hood and the side suction port are connected to a cyclone separator via a dust suction pipe. The cyclone separator is equipped with a dust collection bag.

10. A semi-enclosed surface sand cleaning platform for sand castings according to claim 1, characterized in that, The sand cleaning box (1) is provided with a transparent window and a glove opening on the side facing the sand cleaning station (7), and a lighting lamp (102) is also provided inside the sand cleaning box.

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