Shell cleaning device

Abstract

The invention relates to a shell cleaning device, belongs to the technical field of casting, and solves the problems of long shell cleaning period, high cleaning difficulty and difficulty in waste residue separation in casting in the prior art. The shell cleaning device comprises a first shell cleaning unit and a second shell cleaning unit, the first shell cleaning unit and the second shell cleaning unit are arranged separately; the first shell cleaning unit comprises vibration shell cleaning equipment, and the vibration shell cleaning equipment is used for cleaning shells through vibration; the second shell cleaning unit comprises high-pressure water shell cleaning equipment which is used for cleaning shells through high-pressure water. According to the invention, rapid and efficient shell cleaning can be realized, and waste residue separation is convenient.

Description

Technical Field

[0001] This invention relates to the field of casting technology, and more particularly to a shell cleaning device. Background Technology

[0002] Aerospace investment castings typically have complex internal cavity structures and require high dimensional accuracy. They are usually produced using the silica sol shell casting process. Silica sol shell casting has a long production cycle and complex processes. Improper selection of shell materials and control of the shell casting process can lead to extremely difficult and lengthy shell cleaning of castings with complex internal cavity structures. Since the inside of the shell is often wrapped with wire mesh to secure the casting, separating the waste from the wire and iron filings during shell cleaning is very challenging. Summary of the Invention

[0003] Based on the above analysis, the present invention aims to provide a shell cleaning device to solve the problems of long shell cleaning cycle, high cleaning difficulty and difficulty in separating waste residue in casting.

[0004] The objective of this invention is mainly achieved through the following technical solutions:

[0005] A shell cleaning device includes a first shell cleaning unit and a second shell cleaning unit; the first shell cleaning unit and the second shell cleaning unit are disposed separately.

[0006] The first shell cleaning unit includes a vibration shell cleaning device, which is used to clean the shell by vibration.

[0007] The second shell cleaning unit includes a high-pressure water device, which is used to clean the shell using high-pressure water.

[0008] Furthermore, the first shell-cleaning unit also includes a pneumatic pick, which is used for manual shell cleaning.

[0009] Furthermore, the second shell cleaning unit also includes a six-axis robot arm, which is connected to the high-pressure water equipment and used to control the high-pressure water gun of the high-pressure water equipment to achieve high-pressure water shell cleaning of the casting.

[0010] Furthermore, the second shell-cleaning unit also includes a truss and a truss robot, the truss robot being mounted on the truss for transporting the shell and casting to the workstation of the six-axis robot.

[0011] Furthermore, the truss includes an X-axis, a Y-axis, and a Z-axis, and the truss robot includes a flipping structure, a rotating structure, and an end effector for gripping, flipping, and rotating the shell.

[0012] Furthermore, it also includes a waste residue recycling unit, which is used to collect waste residue from the first shell cleaning unit and the second shell cleaning unit; the waste residue recycling unit includes a waste residue discharge port and a waste residue pusher plate, which is used to push the waste residue to the waste residue discharge port.

[0013] Furthermore, the waste residue recycling unit also includes a material basket and a waste residue conveying mechanism. The waste residue discharge port is located above the waste residue conveying mechanism, and the material basket is located at the end of the waste residue conveying mechanism. The waste residue conveying mechanism is used to convey the waste residue from the waste residue discharge port to the material basket. The material basket is equipped with a sensor to remind the user to clean the waste residue.

[0014] Furthermore, the waste residue recycling unit also includes a waste residue lifting mechanism, which is used to lift the material basket to a forklift.

[0015] Furthermore, it also includes a dust removal unit, which is disposed in the first shell cleaning unit; the dust removal unit includes a dust removal unit and a dust removal pipeline.

[0016] Furthermore, it also includes a filtration unit; the filtration unit includes a first filtration unit; the first filtration unit is disposed at the lower part of the first cleaning unit and is used to filter and collect the waste residue of the first cleaning unit.

[0017] Furthermore, the first filtering unit includes a first screen inclined at the top and a first collector at the bottom; the first screen is used to filter the shell block and recover the iron wire; the first collector is used to collect the shell block filtered by the first screen.

[0018] Furthermore, a rebound plate is vertically provided at the end of the first screen, which is used to bounce unbroken large shell pieces and crush them by impact; the rebound plate has a slide rail, and the rebound plate can move on the slide rail to remove or block the waste residue from falling.

[0019] Furthermore, the first screen has an impact structure, which is disposed on one side of the first screen and is used to impact the first screen; the impact structure includes a first eccentric wheel, a first connecting rod, a second connecting rod, a straight rail, an impact hammer, and a return spring.

[0020] Furthermore, one end of the first connecting rod is disposed on the edge of the first eccentric wheel, and the other end of the first connecting rod is connected to the second connecting rod; the second connecting rod is disposed on the straight rail and can slide in the straight rail; the impact hammer is disposed at the other end of the second connecting rod, and a spring is disposed between the second connecting rod and the impact hammer.

[0021] Furthermore, the first screen also has a tilting structure, which is disposed on the other side of the first screen for tilting the first screen; the tilting structure includes a second eccentric wheel, a swing rod, an L-shaped rod and a third connecting rod, one end of the L-shaped rod is disposed on the edge of the eccentric wheel, the other end of the L-shaped rod is connected to the swing rod, and the swing rod is hinged to the middle of the third connecting rod; one end of the third connecting rod is hinged to a support, and the other end is hinged to one end of the first screen.

[0022] Furthermore, the end of the first screen has a guide plate and a collection basket, the guide plate being used to guide the wire to the collection basket.

[0023] Furthermore, a first conical collection box is provided at the end of the first collector for collecting the shell block.

[0024] Furthermore, the filtration unit also includes a second filtration unit; the second filtration unit is disposed at the lower part of the second shell cleaning unit; the second filtration unit includes an inclined second screen and a second collector disposed at the lower part of the second screen; the second screen is used to collect the shell pieces, and the second collector is connected to a water storage tank.

[0025] Furthermore, the second screen is also provided with a scraper structure, the scraper structure including a handle, the end of the handle being connected to a telescopic cylinder; a rod is provided on the upper part of the scraper, and a magnet is provided at the end of the rod.

[0026] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0027] (1) This invention sets up a first shell cleaning unit and a second shell cleaning unit for cleaning the casting shell. The first shell cleaning unit uses vibration shell cleaning to initially clean the shell, while the second shell cleaning unit uses high-pressure water equipment for shell cleaning. Through the complementarity of the two shell cleaning methods, efficient, thorough and safe shell cleaning is achieved. Vibration shell cleaning quickly removes large areas of loosely attached shell, rapidly reducing the total amount of shell. After removing the loose shell through vibration, the bonding force between the residual shell and the casting is greatly reduced, and high-pressure water can be used to remove it at a lower pressure, reducing the direct impact of water flow on the casting surface, enhancing process applicability, reducing the risk of casting damage, and protecting the quality of the workpiece.

[0028] (2) Vibration shell cleaning: First, the hydraulic crushing robot arm performs mechanical cleaning to reduce the intensity of manual processing and weaken the force between the casting and the shell. Then, a manual pneumatic pick is used for targeted cleaning to peel off the casting and wire mesh, avoiding mechanical removal that could damage the casting. Subsequently, a gantry robot and a six-axis robot are used for high-pressure water shell cleaning to improve the shell cleaning efficiency.

[0029] (3) The present invention is equipped with a waste residue recycling unit, which transports the waste residue to the material basket and lifts it to the forklift for processing through the waste residue conveying mechanism; and a dust removal unit is set up to keep the working space in a good environment.

[0030] (4) Compared with the prior art, the present invention sets up a filtration unit. The first filtration unit includes a first screen and a first collector arranged at an inclination. The first screen is provided with a rebound plate. The waste residue of the first shell cleaning unit is accelerated to impact the rebound plate due to the inclination angle and rebounds to impact again, so that the shell blocks and large shell blocks on the iron wire are broken and enter the first collector through the mesh of the screen, and are collected by the first collector, thereby improving the waste residue treatment efficiency and reducing the difficulty of separating the iron wire from the shell.

[0031] (5) The first screen of the present invention is provided with a tilting structure to change the tilt angle of the first screen so that the shell block impacts the rebound plate multiple times, thereby improving the crushing efficiency. The tilting structure is also used to tilt and collect the iron wire. The first screen is provided with an impact structure to knock out the shell particles that are blocking the mesh of the first screen, thereby avoiding affecting the use of the screen.

[0032] (6) In the second filtration unit of the present invention, the second screen is used to allow water to leak to the second collector for easy collection. A scraper is provided on the upper part of the second screen to push the shell particles that are moist and easy to stick to the screen to the end of the second screen for collection, and a rod is hinged above the scraper, with a magnet at the end of the rod for adsorbing iron filings.

[0033] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the specification or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the content specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0034] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0035] Figure 1 This is a schematic diagram of the shell cleaning device in Example 1;

[0036] Figure 2 This is a schematic diagram of the shell cleaning device for removing the floor and partition in Example 1;

[0037] Figure 3 This is a schematic diagram of the structure of the first filter unit in Example 2;

[0038] Figure 4 This is a schematic diagram of the impact structure of the first screen in Example 2;

[0039] Figure 5 This is a schematic diagram of the tilting structure of the first screen in Example 2;

[0040] Figure 6 This is a schematic diagram of the structure of the first collector in Example 2;

[0041] Figure 7 This is a schematic diagram of the structure of the second filter unit in Example 2.

[0042] Figure label:

[0043] 1-Hydraulic crushing robotic arm; 2-Second shell cleaning unit; 21-High-pressure water equipment; 22-Six-axis robotic arm; 23-Truss; 24-Truss robotic arm; 3-Waste residue recycling unit; 31-Waste residue discharge port; 32-Waste residue pusher plate; 33-Material basket; 34-Waste residue conveying mechanism; 35-Waste residue lifting mechanism; 4-Dust removal unit; 5-Mold shell; 6-First filtration unit; 61-First screen; 611-Impact structure; 6111-First eccentric wheel; 6112-First connecting rod; 6113 - Straight rail; 6114- Second connecting rod; 6115- Impact hammer; 612- Tilting structure; 6121- Second eccentric wheel; 6122- L-shaped rod; 6123- Third connecting rod; 6124- Swing rod; 613- Collection basket; 614- Bounce plate; 62- First collector; 621- First conical collection box; 7- Second filter unit; 71- Second screen; 711- Scraper; 712- Magnet block; 713- Second conical collection box; 72- Second collector; 721- Water storage tank. Detailed Implementation

[0044] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0045] Example 1

[0046] A specific embodiment of the present invention, such as Figure 1 and Figure 2 As shown, a shell cleaning device 5 is disclosed, including a first shell cleaning unit and a second shell cleaning unit 2, which are separated from each other.

[0047] The first shell cleaning unit includes a vibratory shell cleaning device, which is used to perform preliminary cleaning of the shell 5 by vibrating the shell.

[0048] The second shell cleaning unit 2 includes a high-pressure water device, which is used to perform secondary cleaning of the shell 5 by using high-pressure water to clean the shell.

[0049] This embodiment includes a first shell cleaning unit and a second shell cleaning unit 2 for cleaning the casting shell 5. The first shell cleaning unit uses vibration to initially clean the shell, while the second shell cleaning unit 2 uses high-pressure water equipment. Through the complementarity of the two shell cleaning methods, efficient, thorough, and safe shell cleaning is achieved. Vibration cleaning quickly removes large areas of loosely attached shell, rapidly reducing the total amount of shell. After removing the loose shell through vibration, the bonding force between the remaining shell and the casting is significantly reduced, allowing high-pressure water to remove it at a lower pressure, reducing the direct impact of water flow on the casting surface, enhancing process applicability, reducing the risk of casting damage, and protecting workpiece quality.

[0050] Specifically, in this embodiment, the first shell cleaning unit and the second shell cleaning unit 2 are separated by partitions, and each station is provided with a separate workspace.

[0051] The first shell cleaning unit includes a vibratory shell cleaning device, which includes a hydraulic crushing robotic arm 1. The hydraulic crushing robotic arm 1 can automatically perform multi-degree-of-freedom operations on a planar variable amplitude and rotary structure, and quickly locate the crushing point on the casting and shell 5. Through the configured hydraulic hammer, it crushes the shell 5, improving cleaning efficiency and effect, and adapting to the cleaning needs of different shells 5.

[0052] Specifically, during operation, the horizontal angle between the hydraulic crushing robotic arm 1 and the shell 5 is 60°. If the angle is too small, the tangential force is too large but the normal force is insufficient, making it difficult to break through the bonding force between the shell 5 and the casting, resulting in incomplete shell removal. If the angle is too large, although the normal force is strong, the tangential force is weak, and the detached shell 5 fragments are prone to accumulate on the surface of the casting, and may even re-adhere due to vibration, affecting subsequent cleaning. At a 60° angle, the two forces work together, which can quickly peel off the shell 5 and promptly remove the fragments, reducing the number of repeated vibrations and improving overall efficiency. Moreover, the vibration force is transmitted through the force components, which can reduce the direct impact force on the casting: the normal force is concentrated on peeling off the shell 5, and the tangential force guides the fragments to detach smoothly, reducing the risk of rigid collision between the shell 5 fragments and the casting.

[0053] The first shell cleaning unit also includes a pneumatic pick, which is used for manual shell cleaning after the vibratory shell cleaning equipment has cleaned the shell. A handheld pneumatic pick is used to peel off the shell 5 and remove the wires and shell blocks inside the shell 5.

[0054] The second shell cleaning unit 2 includes a high-pressure water jet device 21, which is used to perform secondary cleaning of the mold shell 5 using high-pressure water. The high-pressure water jet device 21 has adjustable pressure and flow rate functions, and uses high-pressure water to spray onto the surface of the casting to remove the mold shell 5. When the impact force generated by the high-speed jet on the mold shell 5 exceeds the shear strength of the mold shell 5, the mold shell 5 is broken up. Then, the water flow seeps into the cracks in the mold shell 5, disrupting the bonds between the mold shells. The mold shell 5 is then dispersed and washed off with the water flow.

[0055] The second shell-cleaning unit 2 also includes a six-axis robot 22, which is connected to a high-pressure water system 21 to control the high-pressure water gun of the system, thereby achieving high-pressure water shell-cleaning of the casting. The six-axis robot 22 controls the high-pressure water gun to operate automatically according to the program, automatically adjusting the water pressure and flow rate changes during the shell-cleaning process according to the set program, thus achieving automatic high-pressure water shell-cleaning of the casting. The high-pressure water nozzle works in conjunction with the six-axis robot 22 to thoroughly remove residual shell 5 from blind holes, grooves, inner cavities, and other areas.

[0056] The second shell-cleaning unit 2 also includes a truss 23 and a truss robot 24. The truss robot 24 is mounted on the truss 23 and is used to transport the shell 5 and the casting to the workstation of the six-axis robot 22. The truss 23 includes X-axis, Y-axis, and Z-axis. The truss robot 24 includes a flipping structure, a rotating structure, and an end effector for clamping, flipping, and rotating the shell 5. The movement, swinging, and rotation of the X-axis, Y-axis, and Z-axis of the truss robot 24 are all achieved by servo motors driving gear and rack meshing transmission, with a repeatability of ≤±5mm, ensuring smooth and flexible movement trajectory of the truss robot 24. The truss end effector can meet the clamping and flipping of different shells 5. The clamping fixture is driven by a servo motor and adopts a pin-shaft positioning method, which can realize fast and simple clamping action and firm clamping.

[0057] In this embodiment, the vibratory shell cleaning first uses the hydraulic crushing robotic arm 1 for mechanical cleaning, reducing the intensity of manual processing and weakening the force between the casting and the shell 5. Then, a manual pneumatic pick is used for targeted cleaning, peeling off the shell and wire mesh to avoid mechanical removal damaging the casting. Subsequently, a gantry robot 24 and a six-axis robot 22 are used for high-pressure water shell cleaning to improve the shell cleaning efficiency.

[0058] It also includes a waste residue recycling unit 3, which is used to collect the waste residue from the first shell cleaning unit and the second shell cleaning unit 2.

[0059] The waste residue recycling unit 3 includes a waste residue discharge port 31 and a waste residue pusher plate 32, which pushes the waste residue to the waste residue discharge port 31. The waste residue pusher plate 32 is installed on the floor of the space between the first shell cleaning unit and the second shell cleaning unit 2. The waste residue discharge port 31 is located on one side of the workstation. The height of the waste residue discharge port 31 is lower than the height of the workstation, which facilitates waste residue collection.

[0060] The waste residue recycling unit 3 also includes a material basket 33, a waste residue conveying mechanism 34, and a waste residue lifting mechanism 35.

[0061] A waste conveying mechanism 34 is located below the waste discharge port 31, and a material basket 33 is located at the end of the waste conveying mechanism 34. The waste conveying mechanism 34 is used to convey the waste from the waste discharge port 31 to the material basket 33. Furthermore, the material basket 33 is equipped with a weighing sensor to remind the operator to clean the waste. When the weight of the broken shells in the material basket exceeds three tons, the weighing sensor uploads the information to the host computer, which then reminds the operator to promptly clean the shells and perform subsequent recycling work. The waste lifting mechanism 35 is an X-shaped lifting mechanism used to lift the material basket 33 onto a forklift.

[0062] Furthermore, it also includes a dust removal unit 4, which comprises a dust removal unit and dust removal pipelines. The dust removal pipelines are located in the upper part of the space of the first cleaning unit and adsorb dust by means of negative pressure.

[0063] The usage method of this embodiment is as follows:

[0064] First, the hydraulic hammer of the hydraulic crushing robot arm 1 performs preliminary cleaning of the casting shell 5. The cleaned waste is pushed into the shell breaking discharge port of this station by a pusher plate. Then, a pneumatic pick is used manually to remove the wire and shell blocks. The cleaned waste is pushed into the waste discharge port 32 of this station by a pusher plate.

[0065] Secondly, the pre-cleaned castings are transported by forklift to the high-pressure water shell cleaning unit. The castings are placed in the workstation of the truss structure 23, where the end effector of the truss robot 24 clamps the casting. The high-pressure water equipment 21 is turned on, and the high-pressure water pressure is adjusted to further clean the remaining casting shell 5. During the cleaning process, the rotation and flipping of the shell 5 are achieved through the truss 23 flipping mechanism and the truss 23 rotating mechanism.

[0066] The cleaned residue enters the waste discharge port 31 of this workstation.

[0067] The waste discharge port 31 opens automatically, and the waste pusher plate 32 pushes the waste to the waste discharge port 31. After entering the waste discharge port 31, the waste is transported by the waste conveying mechanism 34 to the material frame 33 of the waste lifting mechanism 35. The material frame 33 of the waste lifting mechanism 35 can hold about four tons of waste. When the weight of the broken shells in the material frame 33 exceeds three tons, the host computer reminds the operator to promptly clean the shell 5 and carry out subsequent recycling work.

[0068] Example 2

[0069] This embodiment improves upon Embodiment 1 by adding a filtration unit, which is used to separate the iron wire and the shell block in the waste residue of the first shell cleaning unit, and to separate the shell block and water in the waste residue of the second shell cleaning unit 2.

[0070] Specifically, the filtration unit includes a first filtration unit 6. The first filtration unit 6 is disposed at the lower part of the first cleaning unit.

[0071] The first filtration unit 6 includes a first screen 61 inclined at the top and a first collector 62 disposed below the first screen 61. The first screen 61 is used to filter shell blocks and recover iron wire; the first collector 62 is used to collect the shell blocks filtered by the first screen 61.

[0072] Specifically, the mesh of the first screen 61 is a diamond-shaped structure. The end of the first screen 61 has a guide plate and a collection basket 613, the guide plate being used to guide the wire to the collection basket 613.

[0073] like Figure 3 As shown, a rebound plate 614 is vertically installed at the end of the first screen 61. The first screen 61 is inclined. When the wire and large shell pieces slide down from the middle or the beginning of the first screen 61 to the rebound plate 614, the rebound plate 614 rebounds the unbroken large shell pieces to the middle or the beginning, and they slide down to the rebound plate 614 again, where they are crushed upon impact. The wire, however, remains unchanged after rebounding. Furthermore, the rebound plate 614 is made of rubber.

[0074] Furthermore, the first screen 61 has slide rails on both sides of its end, and the rebound plate 614 can move on the slide rails to remove or block the waste from falling. The rebound plate 614 is inserted downward into the slide rail to the end of the first screen 61, preventing the waste from sliding into the guide plate and into the collection basket 613. When the rebound plate 614 is pulled out from the slide rail, the wire in the first screen 61 slides down and into the collection basket 613 from the guide plate.

[0075] In this embodiment, the rebound plate 614 is set so that the molded shell blocks and large molded shell blocks on the iron wire are broken and enter the first collector 62 through the mesh of the first screen 61, and are collected by the first collector 62, thereby improving the waste residue treatment efficiency and reducing the difficulty of separating the iron wire from the molded shell.

[0076] Furthermore, to prevent the shell block from clogging the mesh of the first screen 61, such as... Figure 3 As shown, the first screen 61 is provided with an impact structure 611. By impacting the first screen 61, the shell block blocked in the mesh is ejected and participates in the rebound and crushing.

[0077] The impact structure 611 is disposed on one side of the first screen 61. Exemplarily, the impact structure 611 includes a first eccentric wheel 6111, a first connecting rod 6112, a second connecting rod 6114, a straight rail 6113, an impact hammer 6115, and a return spring.

[0078] The first eccentric wheel 6111 has a motor drive at its center. A groove is provided near the edge of the first eccentric wheel 6111. One end of the first connecting rod 6112 is located in the first groove and can move in the first groove.

[0079] The other end of the first connecting rod 6112 is connected to the second connecting rod 6114. The second connecting rod 6114 is mounted on the straight rail 6113 and can slide within the straight rail 6113. Thus, the second connecting rod 6114 converts the rotational motion of the first eccentric wheel 6111 into linear motion along the straight rail 6113. The impact hammer 6115 is mounted on the other end of the second connecting rod 6114 and moves linearly along with it. Furthermore, to facilitate rapid reset after impact, a spring is provided between the second connecting rod 6114 and the impact hammer 6115.

[0080] Furthermore, such as Figure 4 As shown, the first screen 61 also has a tilting structure 612, which is set on the other side of the first screen 61. The tilting structure 612 is used to tilt the iron wire in the first screen 61 and accelerate the shell block in the first screen 61 to impact the rebound plate 614 by repeatedly changing the tilt angle, thereby improving the crushing efficiency of the shell block.

[0081] For example, the tilting structure 612 includes a second eccentric wheel 6121, a swing rod 6124, an L-shaped rod 6122, and a third connecting rod 6123. The second eccentric wheel 6121 has a motor drive at its center, and a second groove is provided near its edge. One end of the L-shaped rod 6122 is disposed in the second groove and can move within the second groove.

[0082] The other end of the L-shaped rod 6122 is connected to the swing rod 6124, which is hinged to the middle of the third connecting rod 6123. One end of the third connecting rod 6123 is hinged to the support, and the other end is hinged to one end of the first screen 61. Through the arrangement of the swing rod 6124, the L-shaped rod 6122, and the third connecting rod 6123, the rotation of the second eccentric wheel 6121 is converted into the rotational motion of the first screen 61 driven by the end of the third connecting rod 6123, thereby changing the angle between the second screen 71 and the horizontal plane. As the angle between the second screen 71 and the horizontal plane increases, the speed and force of the shell block impacting the rebound plate 614 increase, and the efficiency of shell crushing improves.

[0083] It should be noted that both the impact structure 611 and the tilting structure 612 are driven by motors, which are electrically connected to the host computer of the shell cleaning device and are controlled by the host computer. This is existing technology and will not be described in detail here.

[0084] like Figure 5 As shown, the first collector 62 has a fixed tilt angle and a first conical collection box 621 is provided at its end for collecting the shell blocks. The first conical collection box 621 is located above the waste conveying mechanism. The bottom of the first conical collection box 621 is a through hole. After being collected by the first conical collection box 621, the shell blocks fall directly into the waste conveying mechanism.

[0085] The filter unit also includes a second filter unit 77. The second filter unit 77 is located at the lower part of the second cleaning unit. For example... Figure 6 As shown, the second filtration unit 77 includes an inclined second screen 71 and a second collector 72 disposed below the second screen 71. The second screen 71 is used to collect small shell pieces, and the second collector 72 is connected to a water storage tank 721.

[0086] Since the shell block of the second shell cleaning unit 2 contains water, it is easily adsorbed onto the screen. Therefore, a scraper 711 structure is provided on the second screen 71.

[0087] The scraper 711 structure includes a scraper 711 body and a handle. The shape of the scraper 711 body matches the curvature of the second screen 71 to facilitate pushing the shell block into the second conical collection box 713 at the end. The second conical collection box 713 is located above the waste conveying mechanism. The bottom of the second conical collection box 713 is a through hole. After being collected by the second conical collection box 713, the shell block falls directly into the waste conveying mechanism.

[0088] The end of the handle is connected to a telescopic cylinder, and the scraper 711 moves on the second screen 71 by the telescopic movement of the end of the telescopic cylinder.

[0089] During the removal process, some iron filings are generated. A magnet 712 is provided on the upper part of the scraper 711, and the magnet 712 is located at the end of the rod. The middle part of the rod is hinged to the upper part of the scraper 711. The rod can move with the scraper 711 and can rotate at multiple angles to attract the iron filings from the iron wire.

[0090] It should be noted that the second screen 71 and the scraper 711 are both made of non-ferrous materials. In this embodiment, the first screen 61, the second screen 71, the first collector 62, and the second collector 72 are all arc-shaped structures, which facilitates collection.

[0091] The usage method of this embodiment is as follows:

[0092] The shell blocks and wire mesh generated by the vibration in the first shell cleaning unit are pushed by the waste slag pusher plate through the waste slag discharge port into the first filter unit 6, landing on the first screen 61 in the first filter unit 6. They slide from the taller end of the first screen 61 to the shorter end, i.e., the end of the first screen 61. The rebound plate 614 of the first screen 61 rebounds the shell blocks and wire mesh to the taller end or the middle. The tilting structure 612 is activated, causing the wire mesh and shell blocks in the first screen 61 to rebound continuously. The shell blocks and large shell blocks on the wire mesh are impacted and broken, and fall into the first collector 62 through the mesh of the first screen 61. When the mesh of the first screen 61 is blocked, the impact structure is activated, and the impact hammer 6115 strikes the screen, causing the shell blocks in the screen mesh to break or pop out.

[0093] The first collector 62 has a fixed tilt angle and a second conical collection box 713 is provided at its end. The shell fragments enter the waste conveying mechanism 34 through the conical collection box.

[0094] The shell blocks and water from the second shell cleaning unit 2 fall through the waste discharge port 31 into the second screen 71 of the lower second filter unit 77. Water falls through the mesh of the second screen 71 into the second collector 72, and is collected by the inclined second collector 72 into the water storage tank 721 for recycling. The shell blocks on the second screen 71, which are moist, slide down the inclined second screen 71 into the second conical collection box 713, and fall into the waste conveying mechanism 34. The shell blocks adhering to the second screen 71 are pushed by the scraper 711 into the second conical collection box 713 at the end of the second screen 71. At the same time, the magnet 712 above the scraper 711 attracts iron filings.

[0095] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A shell cleaning device, characterized in that, It includes a first shell cleaning unit and a second shell cleaning unit (2); the first shell cleaning unit and the second shell cleaning unit (2) are separated. The first shell cleaning unit includes a vibration shell cleaning device, which is used to clean the shell by vibration. The second shell cleaning unit (2) includes a high-pressure water device for cleaning the shell with high-pressure water.

2. The shell cleaning device according to claim 1, characterized in that, The first shell cleaning unit also includes a pneumatic pick, which is used for manual shell cleaning.

3. The shell cleaning device according to claim 1, characterized in that, The second shell cleaning unit (2) also includes a six-axis robot (22), which is connected to the high-pressure water equipment (21) and is used to control the high-pressure water gun of the high-pressure water equipment (21) to achieve high-pressure water shell cleaning of the casting.

4. The shell cleaning device according to claim 3, characterized in that, The second shell cleaning unit (2) also includes a truss (23) and a truss robot (24), the truss robot (24) being mounted on the truss (23) for transporting the shell (5) and casting to the work station of the six-axis robot (22).

5. The shell cleaning device according to claim 4, characterized in that, The truss (23) includes an X-axis, a Y-axis, and a Z-axis.

6. The shell cleaning device according to claim 1, characterized in that, It also includes a waste residue recycling unit (3), which is used to collect the waste residue from the first shell cleaning unit and the second shell cleaning unit (2).

7. The shell cleaning device according to claim 6, characterized in that, The waste residue recycling unit (3) also includes a waste residue conveying mechanism (34), and the waste residue discharge port (31) is located above the waste residue conveying mechanism (34).

8. The shell cleaning device according to claim 7, characterized in that, The waste residue recycling unit (3) also includes a material basket (33), which is located at the end of the waste residue conveying mechanism (34). The waste residue conveying mechanism (34) is used to convey the waste residue from the waste residue discharge port (31) to the material basket (33).

9. The shell cleaning device according to claim 8, characterized in that, The material basket (33) is equipped with a weighing sensor, which is used to remind the waste residue to be cleaned.

10. The shell cleaning device according to claim 8, characterized in that, The waste recycling unit (3) also includes a waste lifting mechanism (35), which is used to lift the basket (33) to a forklift.

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