Powder recovery device of laser cladding equipment

Abstract

The utility model relates to a powder recovery device of laser cladding equipment, and belongs to the technical field of powder recovery equipment. The device comprises a rack, wherein a screening mechanism and a collecting box are sequentially arranged on the rack from top to bottom; the rack is further provided with a suction assembly, and the suction assembly is provided with a suction end used for sucking scattered metal powder and a discharging end used for discharging the metal powder. The screening mechanism comprises a screening disc and a stirring assembly. A screen is arranged at the bottom of the screen tray, and the screen tray is used for directly facing the discharging end of the suction assembly so as to receive metal powder discharged by the suction assembly; the stirring assembly comprises a stirring driving part and a stirring part, the stirring part is movably assembled on the rack in the horizontal direction, and the stirring driving part is used for driving the stirring part to reciprocate in the horizontal direction to rub the screen so as to shake off the metal powder adhered to the screen. The metal powder adhering to the screen can be recycled, waste is reduced, and the recycling rate is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of powder recovery equipment, in particular to a powder recovery device for laser cladding equipment. Background Art

[0002] Laser cladding is an advanced surface engineering technology that uses a high-energy laser beam to precisely heat and melt the substrate surface and the pre-placed cladding material to form a metallurgically bonded surface coating to enhance the performance of the substrate. In laser cladding, first place or continuously feed the cladding material on the surface of the processed substrate, such as spraying metal powder, so that the laser beam is focused on this area and quickly heated to above the melting point, so that the thin layer on the surface of the substrate is melted together with the cladding material. During the laser cladding process, there will be a problem of metal powder and welding slag flying. In order to avoid waste of resources, the metal powder mixed with the welding slag needs to be recovered and reused.

[0003] In the prior art, a recovery device is used to recover the powder produced by laser cladding, such as a laser cladding powder recovery device disclosed in the patent with authorization announcement number CN212856652U. In the device, metal powder mixed with welding slag is screened by filter mesh No. 1 and filter mesh No. 2, so that large particles of impurity waste such as welding slag are separated from the metal powder. However, when the device is used for screening, the screen holes may be blocked by compacted metal powder or other impurity particles, affecting the screening effect. After the screening is completed, a large amount of metal powder will remain on the screen due to electrostatic adsorption and other reasons, resulting in the metal powder cannot be completely recovered, causing waste. Utility Model Content

[0004] The utility model provides a powder recovery device for laser cladding equipment to solve the technical problem that when the powder recovery equipment in the prior art recovers metal powder, part of the powder adheres to the equipment structure and is difficult to recover, which ultimately leads to a low powder recovery rate of the equipment and causes waste.

[0005] In order to solve the above problems, the utility model provides a powder recovery device for laser cladding equipment, which adopts the following technical solutions:

[0006] A powder recovery device for laser cladding equipment, comprising:

[0007] A frame, on which a screening mechanism and a collecting box are arranged in sequence from top to bottom;

[0008] The frame is also provided with a suction assembly, which has a suction end for sucking scattered metal powder and a discharge end for discharging the metal powder;

[0009] The screening mechanism comprises a screen plate and a toggle assembly;

[0010] The bottom of the sieve plate is provided with a sieve mesh, and the sieve plate is arranged directly opposite to the discharge end of the suction component to receive the metal powder discharged by the suction component;

[0011] The toggle assembly includes a toggle drive and a toggle member. The toggle member is assembled on the frame so as to be movable in the horizontal direction. The toggle drive is used to drive the toggle member to reciprocate in the horizontal direction to scrape the screen so as to shake off the metal powder adhered to the screen.

[0012] The beneficial effect of the above technical solution is: by setting up a toggle component to scratch the screen, the metal powder adhered to the screen can be shaken off, thereby avoiding the waste caused by the powder adhered to the screen being unable to be recycled. At the same time, by scratching the toggle component, the powder or impurities stuck in the screen mesh can be shaken off, avoiding the clogging of the screen mesh and affecting the screening effect.

[0013] Further, the toggle member includes a connecting shaft and a toggle block, the connecting shaft extends horizontally and is movably mounted on the sieve plate in a horizontal direction perpendicular to the axial direction of the connecting shaft, the toggle block is fixedly mounted on the connecting shaft, the toggle block has a toggle rod extending radially along the connecting shaft, and the toggle rod is elastic;

[0014] The toggle drive component includes a driving motor, a transmission gear, and a transmission rack. The transmission gear is connected to the connecting shaft, the transmission rack is fixedly connected to the screen plate, the transmission rack extends horizontally and is perpendicular to the connecting shaft, the transmission gear and the transmission rack are meshed with each other, and the driving motor is connected to the connecting shaft to drive the connecting shaft to roll in the horizontal direction, thereby driving the toggle rod to roll to scratch the screen.

[0015] The beneficial effect of the above technical solution is: by setting a gear rack transmission structure to drive the toggle rod to roll in the left and right directions to scratch the screen, the toggle rod intermittently scratches the screen to prevent the screen from being scratched all the time and causing serious wear and affecting its service life.

[0016] Furthermore, the frame is also provided with a pushing mechanism for pushing the sieve plate to reciprocate in the horizontal direction.

[0017] The beneficial effect of the above technical solution is that the pushing mechanism is provided to push the sieve plate to shake during the screening process, so as to facilitate the falling of the metal powder and improve the screening efficiency.

[0018] Furthermore, the pushing mechanism includes a pushing motor, a rotating shaft, a pushing cam, and an elastic member. The rotating shaft is horizontally arranged and rotatably assembled on the frame, the pushing cam is fixedly connected to the rotating shaft, the elastic member is connected between the frame and the sieve plate to press the sieve plate against the pushing cam, the pushing motor is transmission-connected to the rotating shaft, the pushing motor is used to drive the rotating shaft to rotate, thereby driving the pushing cam to rotate to repeatedly push the sieve plate to make the sieve plate shake.

[0019] The beneficial effect of the above technical solution is that the cam structure is used to push the sieve plate to move back and forth to achieve the shaking of the sieve plate, and the structure is simple and easy to implement.

[0020] Furthermore, the frame is provided with a material guiding channel extending toward the sieve plate, and the discharge end of the suction assembly is connected with a filter box, which is inserted in the material guiding channel.

[0021] The beneficial effects of the above technical solution are: a material guide channel is provided to facilitate the transportation of the sucked powder into the sieve plate, and a filter box is provided at the discharge end of the suction component, which can perform primary filtration on the sucked powder, filter out large particles of welding slag and other impurities, and reduce the workload of the subsequent screening process.

[0022] Furthermore, the end of the material guiding channel is in an inverted cone shape.

[0023] The beneficial effect of the above technical solution is that it is convenient to discharge the metal powder in a centralized manner.

[0024] Furthermore, the collection box is slidably mounted on the frame in a horizontal direction.

[0025] The beneficial effect of the above technical solution is that it is convenient to extract the collection box and transfer the metal powder in the collection box after the collection box is full. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0027] Figure 1 A schematic diagram of the structure of a powder recovery device for laser cladding equipment provided by the utility model Figure 1 ;

[0028] Figure 2 A schematic diagram of the structure of a powder recovery device for laser cladding equipment provided by the utility model Figure 2 ;

[0029] Figure 3 A schematic diagram of the structure of a powder recovery device for laser cladding equipment provided by the utility model Figure 3 .

[0030] Description of reference numerals:

[0031] 1. Frame; 2. Suction duct; 3. Air nozzle; 4. Filter box; 5. Material guide channel; 6. Sieve plate; 601. Screen; 602. Long through hole; 7. Connecting shaft; 8. Toggle block; 801. Toggle rod; 9. Driving motor; 10. Transmission gear; 11. Transmission rack; 12. Push motor; 13. Push cam; 14. Rotating shaft; 15. Elastic part; 16. Collection box; 1601. Lug; 17. Slide; 18. Suction fan. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] The following is one embodiment of a powder recovery device for laser cladding equipment provided by the utility model:

[0034] like Figure 1 , Figure 2 , Figure 3 As shown, a powder recovery device for laser cladding equipment includes a frame 1, a suction component is installed on the top of the frame 1, the suction component includes a suction pipe 2 and a suction fan 18, the suction pipe 2 is connected to the suction port of the suction fan 18, an air nozzle 3 is provided at the end of the suction pipe 2 away from the suction fan 18, the air nozzle 3 is the feeding end of the suction component, the air outlet of the suction fan 18 forms the discharge end of the suction component, and a filter box 4 is connected to the discharge end of the suction component, and a mesh is provided at the bottom of the filter box 4 for screening out large particles of impurities in the metal powder sucked by the suction component.

[0035] A material guide channel 5 is installed on the frame 1, and the entrance of the material guide channel 5 extends to the top of the frame 1. The bottom end of the material guide channel 5 is inverted cone shape. The filter box 4 is inserted at the entrance of the material guide channel 5 so that the metal powder extracted by the suction component is directly discharged into the material guide channel 5 after being filtered by the filter box 4.

[0036] A sieve plate 6 is provided on the frame 1 below the material guide channel 5. The bottom of the sieve plate 6 has a sieve 601. The sieve plate 6 is square, and the length direction of the sieve plate 6 is defined as the left-right direction, and the width direction is the front-back direction. A toggle assembly is provided at the sieve plate 6, and the toggle assembly includes a toggle drive member and a toggle member. The toggle member includes a connecting shaft 7 and a plurality of toggle blocks 8. The connecting shaft 7 extends in the front-back direction, and the plurality of toggle blocks 8 are evenly spaced on the connecting shaft 7 in the front-back direction. The toggle block 8 includes a connecting ring and a toggle rod 801 connected to the outer side wall of the connecting ring. The toggle rod 801 extends in the radial direction of the connecting ring. The toggle rod 801 is made of rubber material and has elasticity. Each toggle block 8 is sleeved on the connecting shaft 7 through a connecting ring and fixed to the connecting shaft 7 by welding.

[0037] The front side wall and the rear side wall of the sieve plate 6 are each provided with a long through hole 602 extending in the left-right direction, and the two ends of the connecting shaft 7 pass through the long through holes 602 on the front side wall and the rear side wall of the sieve plate 6, respectively, so that the connecting shaft 7 can be slidably installed on the sieve plate 6 in the left-right direction. The above-mentioned toggle driving member includes a driving motor 9, a transmission gear 10, and a transmission rack 11. The transmission rack 11 extends in the left-right direction and is fixedly connected to the outer side wall of the rear side of the sieve plate 6. The rear end of the connecting shaft 7 passes through the long through hole 602 on the rear side wall of the sieve plate 6 and extends to the outside of the sieve plate 6. The transmission gear 10 is coaxially fixedly connected to the part of the rear end of the connecting shaft 7 extending to the outside of the sieve plate 6, and the transmission gear 10 and the transmission rack 11 are meshed with each other. The driving motor 9 is connected to the connecting shaft 7 to drive the transmission gear 10 to roll on the transmission rack 11, thereby driving the connecting shaft 7 and the toggle block 8 on the connecting shaft 7 to roll along the left and right directions, so that the toggle rod 801 intermittently scratches the screen 601 to shake off the metal powder on the screen 601.

[0038] The frame 1 is also provided with a push mechanism for pushing the sieve plate 6 to shake, and the push mechanism includes a push motor 12, a rotating shaft 14, a push cam 13, and an elastic member 15. The rotating shaft 14 extends in the left-right direction and is rotatably assembled on the frame 1. The rotating shaft 14 is located at the rear side of the sieve plate 6. Two push cams 13 arranged at intervals in the left-right direction are welded on the rotating shaft 14, and one end of the rotating shaft 14 is connected to the push motor 12 in a transmission manner. An elastic member 15 is connected between the frame 1 and the front side wall of the sieve plate 6. The elastic member 15 is a compression spring with a telescopic direction in the front-to-back direction. The elastic member 15 pushes the sieve plate 6 to press against the push cam 13. When the push motor 12 drives the rotating shaft 14 to rotate, it drives the push cam 13 to rotate, so that the protruding part of the push cam 13 intermittently pushes the sieve plate 6 to move forward, so that the sieve plate 6 shakes in the front-to-back direction to screen the material.

[0039] A collecting box 16 is provided on the frame 1 below the sieve plate 6, and the left and right sides of the collecting box 16 have lugs 1601. The left and right sides of the frame 1 are respectively provided with a slide 17 extending along the front-to-back direction. The lugs 1601 on the left and right sides of the collecting box 16 are respectively inserted into the two slides 17 on the frame 1, so that the collecting box 16 can be slidably installed on the frame 1 along the front-to-back direction.

[0040] When the utility model is in use, the scattered metal powder mixed with impurities is sucked into the filter box 4 through the suction component, and the extracted metal powder enters the material guide channel 5 and falls into the sieve plate 6 after being filtered by the filter box 4, and large particles of impurities such as welding slag remain in the filter box 4. Then, the push motor 12 is started, and the push motor 12 drives the rotating shaft 14 and the push cam 13 to rotate, so that the protruding part of the push cam 13 pushes the sieve plate 6 intermittently, so that the sieve plate 6 shakes, and the metal powder discharged into the sieve plate 6 is screened twice, and the screened powder falls into the collection box 16 below the sieve plate 6. When the powder in the sieve plate 6 is screened, the drive motor 9 is started, and the drive motor 9 drives the connecting shaft 7 to roll in the left and right directions, drives the toggle rod 801 to roll in the left and right directions, and the toggle rod 801 intermittently scratches the sieve 601, and the metal powder adhering to the sieve 601 is shaken into the collection box 16, completing the recycling process. After the collecting box 16 is filled with metal powder, the collecting box 16 is pulled out from the frame 1 and the recovered metal powder is poured out.

[0041] The utility model can scrape the screen by arranging a toggle component, so as to shake off the metal powder adhering to the screen, and more fully recover the metal powder to avoid waste. At the same time, it can also prevent the screen from being blocked after long-term use and affecting the screening effect.

[0042] In this embodiment, the toggle drive member includes a driving motor, a transmission gear, and a transmission rack. The toggle member includes a connecting shaft and a toggle block connected to the connecting shaft. The toggle drive member drives the toggle block to roll in the left and right directions, so that the toggle rod intermittently toggle the screen to shake off the powder on the screen. In other embodiments, the toggle drive member includes a driving motor, a transmission screw, and a transmission nut. The transmission screw is connected to the driving motor in a transmission manner, the transmission nut is spirally matched with the transmission screw, the connecting shaft is connected to the transmission nut, and the toggle block is a disc structure mounted on the connecting shaft. At this time, the transmission screw is driven to rotate by the driving motor, driving the transmission nut to move in the left and right directions, thereby driving the connecting shaft to slide in the left and right directions so that the toggle block with a disc structure scratches the screen to shake off the powder.

[0043] In this embodiment, the pushing mechanism includes a pushing motor, a pushing cam, a rotating shaft and an elastic member, and the reciprocating movement of the sieve plate is realized by the cooperation between the pushing cam and the elastic member. In other embodiments, the pushing mechanism includes a pushing motor and a crank-connecting rod structure, and the crank-connecting rod structure is connected to the sieve plate. The pushing motor drives the crank-connecting rod structure to move, thereby driving the sieve plate to slide back and forth.

[0044] In this embodiment, the discharge end of the suction component is connected to a filter box, which is used to filter large particles of impurities in the extracted metal powder. In other embodiments, the discharge end of the suction component is not connected to the filter box. In this case, the extracted powder is directly discharged into the sieve plate for screening without being filtered.

Claims

1. A powder recovery device for laser cladding equipment, comprising: A frame, on which a screening mechanism and a collecting box are arranged in sequence from top to bottom; It is characterized in that The frame is also provided with a suction assembly, which has a suction end for sucking scattered metal powder and a discharge end for discharging the metal powder; The screening mechanism comprises a screen plate and a toggle assembly; The bottom of the sieve plate is provided with a sieve mesh, and the sieve plate is arranged directly opposite to the discharge end of the suction component to receive the metal powder discharged by the suction component; The toggle assembly includes a toggle drive and a toggle member. The toggle member is assembled on the frame so as to be movable in the horizontal direction. The toggle drive is used to drive the toggle member to reciprocate in the horizontal direction to scrape the screen so as to shake off the metal powder adhered to the screen.

2. The powder recovery device of the laser cladding equipment according to claim 1, characterized in that: The toggle member includes a connecting shaft and a toggle block. The connecting shaft extends horizontally and is movably mounted on the sieve plate in a horizontal direction perpendicular to the axial direction of the connecting shaft. The toggle block is fixedly mounted on the connecting shaft. The toggle block has a toggle rod extending radially along the connecting shaft. The toggle rod is elastic. The toggle drive component includes a driving motor, a transmission gear, and a transmission rack. The transmission gear is connected to the connecting shaft, the transmission rack is fixedly connected to the screen plate, the transmission rack extends horizontally and is perpendicular to the connecting shaft, the transmission gear and the transmission rack are meshed with each other, and the driving motor is connected to the connecting shaft to drive the connecting shaft to roll in the horizontal direction, thereby driving the toggle rod to roll to scratch the screen.

3. The powder recovery device of the laser cladding equipment according to claim 1, characterized in that: The frame is also provided with a pushing mechanism for pushing the sieve plate to reciprocate and shake in the horizontal direction.

4. The powder recovery device of the laser cladding equipment according to claim 3, characterized in that: The pushing mechanism includes a pushing motor, a rotating shaft, a pushing cam, and an elastic member. The rotating shaft is horizontally arranged and rotatably assembled on a frame. The pushing cam is fixedly connected to the rotating shaft. The elastic member is connected between the frame and the sieve plate to press the sieve plate against the pushing cam. The pushing motor is transmission-connected to the rotating shaft. The pushing motor is used to drive the rotating shaft to rotate, thereby driving the pushing cam to rotate to repeatedly push the sieve plate to make the sieve plate shake.

5. A powder recovery device for laser cladding equipment according to any one of claims 1 to 4, characterized in that: The frame is provided with a material guiding channel for extending toward the sieve plate, and the discharge end of the suction assembly is connected with a filter box, which is inserted in the material guiding channel.

6. The powder recovery device of the laser cladding equipment according to claim 5, characterized in that: The end of the material guiding channel is in an inverted cone shape.

7. A powder recovery device for laser cladding equipment according to any one of claims 1 to 4, characterized in that: The collecting box is slidably mounted on the frame in a horizontal direction.

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