Automatic feeding device of sand blasting equipment

Abstract

The invention discloses an automatic feeding device for sand blasting equipment, which is applied to the technical field of automatic feeding of the sand blasting equipment and comprises a ground, a sand blasting room, an automatic sand blasting mechanism, a sand returning mechanism and a feeding mechanism, and a foundation pit is arranged below the ground; the feeding mechanism comprises a temporary storage bin, two sets of material distributing assemblies, two sets of recycling assemblies and a feeding bin. The material distributing assembly comprises a third motor, two conveying parts and two movable parts, the side portion of the temporary storage bin is fixedly connected with a second supporting base, the third motor is fixed to the second supporting base, the two conveying parts are arranged in the temporary storage bin, and the arrangement directions of the two conveying parts are different; the two movable parts are arranged in the two conveying parts correspondingly. The conveying part comprises a driving shaft, a driven shaft, a conveying belt, two groups of connecting rods I and a motor IV, and filter holes are formed in the conveying belt to form a screen shape; according to the invention, the continuity of the sand blasting operation by using the sand blasting equipment can be improved.

Description

Technical Field

[0001] This invention relates to the field of automatic feeding technology for sandblasting equipment, specifically to an automatic feeding device for sandblasting equipment. Background Technology

[0002] Sandblasting is a surface treatment method that uses compressed air to propel abrasive material at high speed toward the surface of a workpiece, thereby achieving a certain degree of cleanliness and varying roughness. This process can be used to roughen metal surfaces or remove rust, scale, and other contaminants to achieve decorative purposes and improve the fatigue resistance of the workpiece.

[0003] Currently, sandblasting equipment operates in a discontinuous manner. Once the abrasive in the sandblasting machine is exhausted, the sandblasting worker can only continue working after the equipment is refilled. Sandblasting cannot be done while the machine is being refilled, which affects the operating efficiency of the sandblasting production line.

[0004] Therefore, it is necessary to provide an automatic feeding device for sandblasting equipment to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic feeding device for sandblasting equipment, which can improve the continuity of sandblasting operations and solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automatic feeding device for sandblasting equipment, comprising a ground, a sandblasting chamber, an automatic sandblasting mechanism, a sand return mechanism, and a feeding mechanism. A foundation pit is provided below the ground. The sandblasting chamber and the feeding mechanism are fixed above the ground. The automatic sandblasting mechanism is located inside the sandblasting chamber. The sand return mechanism is located inside the foundation pit. The sand return mechanism is connected to the bottom of the sandblasting chamber. The feeding mechanism is connected to the automatic sandblasting mechanism and the sand return mechanism. The feeding mechanism includes a temporary storage bin, two sets of feeding components, two sets of recovery components, and a feeding bin; The material distribution assembly includes a motor, two sets of conveying parts, and two sets of movable parts. A support base is fixedly connected to the side of the temporary storage bin. The motor is fixed on the support base. The two sets of conveying parts are located inside the temporary storage bin, and the two sets of conveying parts are arranged in different directions. The two sets of movable parts are respectively located inside the two sets of conveying parts.

[0007] The conveying unit includes a drive shaft, a driven shaft, a conveyor belt, two sets of connecting rods, and a motor. The conveyor belt is provided with filter holes to form a screen. The movable part includes several connecting rods II, which are located between two sets of connecting rods I. The two ends of the connecting rods II are fixedly connected to the connecting rods I respectively. Several rotating blocks are connected to the connecting rods II by bearings, and the rotating blocks are provided with empty slots.

[0008] According to the above technical solution, an air inlet is fixedly connected to the top of the sandblasting room, an air outlet is provided on the side of the sandblasting room, a door is provided on one side of the sandblasting room, a recycling tank is provided below the door, the recycling tank is fixedly connected to the sandblasting room, the air inlet and the air outlet are connected by a pipe, and a fan and a dust removal mechanism are provided on the connecting pipe. The bottom of the sandblasting room is equipped with two sets of partition panels, and a storage area is formed between the partition panels.

[0009] According to the above technical solution, the automatic sandblasting mechanism includes a dual-axis moving component, a folding seat, and an angle adjustment component. The dual-axis moving component is fixed to the side wall inside the sandblasting chamber near the air inlet. A moving seat is provided on the dual-axis moving component. The angle adjustment component is fixed to the side of the folding seat away from the dual-axis moving component. A connecting seat is fixedly connected to the side of the folding seat away from the dual-axis moving component. A through hole is provided at the top center of the connecting seat. The angle adjustment component is provided on the connecting seat. A protective cover is provided on the folding seat.

[0010] According to the above technical solution, the angle adjustment component includes the sleeve, motor one, clamp and motor two. The sleeve is disposed in the through hole of the connecting seat and is rotatably connected to the connecting seat. A support seat one is fixedly connected to the top of the connecting seat. Motor one is fixed to the top of the support seat one. The output end of motor one passes through the support seat one and is gear-driven connected to the sleeve. A base is fixedly connected to the top of the sleeve. A rotating plate is hinged to the top of the base near the center of the sleeve. A movable seat two is hinged to the top of the base away from the center of the sleeve. A movable seat one is hinged to the bottom of the rotating plate. A lead screw is connected to the movable seat one by a bearing. The lead screw is connected to the movable seat two by a lead screw drive. A motor two is fixed on the movable seat two. A lead screw nut is fixedly connected to the lead screw. The lead screw nut is located on the side of the movable seat two away from the movable seat one. The output end of the motor two is connected to the lead screw nut by a gear drive. The rotating plate is provided with two sets of clamps on the side near the center of the sleeve. The two sets of clamps are equipped with nozzles inside. The two sets of clamps are connected by fasteners. A connecting pipe is connected to the upper part of the nozzle.

[0011] According to the above technical solution, the sand return mechanism includes a return hopper and an elevator. The return hopper is located in the foundation pit and at the bottom of the sandblasting room. The elevator is located on one side of the sandblasting room. A feed hopper is provided at the bottom of the elevator, and a discharge pipe is provided at the top of the elevator. The bottom of the return hopper is connected to the feed hopper through a pipeline.

[0012] According to the above technical solution, a support frame one and a support frame two are fixedly connected to the top of the ground. The temporary storage bin is fixed on the support frame one, and the feeding bin is fixed on the support frame two. The temporary storage bin is located above the feeding bin. The bottom of the temporary storage bin is connected to the top of the feeding bin via a pipeline. A valve is installed on the connecting pipeline. A feeding pipe is connected to the bottom of the feeding bin, and the feeding pipe is connected to the other end of the connecting pipe. The top of the temporary storage bin is connected to the discharge pipe; Both sets of material dispensing components and both sets of recycling components are located inside the temporary storage bin. The bottom of the temporary storage bin is equipped with two sets of electric doors, which correspond to the positions of the two sets of recycling components.

[0013] According to the above technical solution, the top of the temporary storage bin is fixedly connected to an air extraction port and a second feeding hopper, and the second feeding hopper is connected to a second fan and a second dust removal mechanism via a pipeline.

[0014] According to the above technical solution, the motor three is fixedly connected to the drive shaft of the right-side conveyor, and the output end of the motor three is connected to the drive shaft of the left-side conveyor through a gear transmission combined with a pulley transmission. The two sets of connecting rods are located at the two ends of the driving shaft and the driven shaft, respectively, and the two ends of the connecting rods are connected to the bearings of the driving shaft and the driven shaft, respectively. The conveyor belt is mounted on the drive shaft and the driven shaft, and several spacers are fixedly connected to the conveyor belt.

[0015] According to the above technical solution, the side of the temporary storage compartment is provided with two sets of arc-shaped through slots, the driven shaft is located in the through slots, the outer wall of the temporary storage compartment is fixedly connected with an arc-shaped sliding groove and an arc-shaped support seat three, a slide bar is slidably connected on the sliding groove, the motor four is fixed on the support seat three, a closed plate is connected to the driven shaft by a bearing, the output end of the motor four passes through the support seat three and is connected to one side of the slide bar by a gear transmission, and the other side of the slide bar is connected to the closed plate by a gear transmission.

[0016] According to the above technical solution, the recycling component includes a partition plate, a telescopic plate, and an air pipe. The partition plate is fixed to the bottom of the temporary storage chamber. The partition plate is L-shaped and forms a recycling chamber with the inner wall of the temporary storage chamber. The top of the partition plate is hinged to the telescopic plate. An inlet is provided at the end of the telescopic plate away from the hinged part with the partition plate. A motor is fixedly connected to the outer wall of the temporary storage chamber. The output end of the motor passes through the hinge point between the temporary storage chamber and the telescopic plate and is fixedly connected.

[0017] Several sets of air outlets are provided above the partition plate, and air pipes are provided inside the air outlets. Several partition bars II located above the air outlets are fixedly connected to the partition plate, and several air pipes are connected to a main pipe, which is connected to the air outlet of the fan II.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting two sets of inclined conveying parts with adjustable angles and opposite directions, can extend the path and fully expose and realize dynamic screening of sand material flow rate, continuously screen during the sand material flow process, actively separate and collect waste material, and realize the automated separation and collection of waste material and usable sand material. By incorporating rotating blocks with slots inside the conveyor belt, a dynamic balance is achieved through airflow, gravity, and changes in the conveyor's angle. This allows the rotating blocks to automatically and alternately impact the upper and lower inner walls of the conveyor belt, generating slight vibrations. This effectively prevents screen blockage, promotes the shedding and discharge of dust accumulated inside the conveyor belt and screen holes, and enhances the conveyor belt's screening effect on sand. Simultaneously, as the conveyor's angle changes, the rotating blocks shift their position under gravity, continuously scraping the inner wall of the conveyor belt, further preventing dust caking. This process can be actively triggered by controlling the power of the blower, requiring no additional power source, saving energy and reducing maintenance needs. Consequently, it ensures that the sand entering the feeding hopper is continuous and clean, guaranteeing the continuity of sandblasting operations. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is the invention Figure 2 Enlarged structural diagram of region A in the middle; Figure 4 This is a partial structural cross-sectional view of the present invention; Figure 5 This is the invention Figure 4Enlarged structural diagram of region B in the middle; Figure 6 This is a rear view schematic diagram of the overall structure of the present invention; Figure 7 This is a rear cross-sectional view of the feeding mechanism of the present invention; Figure 8 This is a cross-sectional schematic diagram of a portion of the feeding mechanism of the present invention; Figure 9 This is the invention Figure 7 Enlarged structural diagram of region C in the middle; Figure 10 This is the invention Figure 8 A magnified structural diagram of region D in the middle; Figure 11 This is the invention Figure 8 Enlarged structural diagram of region E in the middle; In the diagram: 1. Ground; 2. Sandblasting booth; 21. Air inlet; 22. Air outlet; 23. Door; 24. Recycling tank; 25. Partition panel; 3. Automatic sandblasting mechanism; 31. Dual-axis moving assembly; 32. Moving base; 33. Folding base; 34. Connecting base; 35. Angle adjustment assembly; 36. Nozzle; 37. Connecting pipe; 38. Protective cover; 351. Sleeve; 352. Support base one; 353. Motor one; 354. Base; 355. Rotating plate; 356. Clamp; 357. Movable seat one; 358. Movable seat two; 359. Lead screw; 3510. Motor two; 4. Sand return mechanism; 41. Return hopper; 42. Elevator; 421. Feed hopper one; 422. Discharge pipe; 5. Feeding mechanism; 51. Support frame one; 52. Temporary storage bin; 521. Air extraction port; 522. Feed hopper two; 523. Through slot; 53. Material distribution assembly; 531. Motor three; 532. Drive shaft; 533. Driven shaft; 534. Conveyor belt; 535. Partition one; 536. Connecting rod one; 537. Connecting rod two; 538. Rotating block; 539. Empty slot; 5310. Sliding slot; 5311. Sliding bar; 5312. Support base three; 5313. Motor four; 5314. Enclosure plate; 54. Recycling assembly; 55. Electric door; 56. Support frame two; 57. Feeding bin; 58. Valve; 59. Feeding pipe; 541. Divider plate; 542. Telescopic plate; 543. Feed inlet; 544. Motor five; 545. Air pipe; 546. Partition two. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-11 The present invention provides a technical solution: an automatic feeding device for sandblasting equipment, including a ground 1, a sandblasting chamber 2, an automatic sandblasting mechanism 3, a sand return mechanism 4, and a feeding mechanism 5. A foundation pit is provided below the ground 1, the sandblasting chamber 2 is fixed above the ground 1, the automatic sandblasting mechanism 3 is located inside the sandblasting chamber 2, the sand return mechanism 4 is located inside the foundation pit and is connected to the bottom of the sandblasting chamber 2, and the feeding mechanism 5 is located at the top of the ground 1. The feeding mechanism 5 is connected to the automatic sandblasting mechanism 3 and the sand return mechanism 4. The automatic sandblasting mechanism 3 is used to automatically sandblast the workpiece located inside the sandblasting chamber 2, the sand return mechanism 4 is used to recover the sand and transport the sand to the feeding mechanism 5, and the feeding mechanism 5 is used to provide sufficient and clean sand to the automatic sandblasting mechanism 3.

[0022] Specifically, such as Figure 1 and Figure 2 As shown, an air inlet 21 is fixedly connected to the top of the sandblasting chamber 2, an air outlet 22 is provided on the side of the sandblasting chamber 2, a door 23 is provided on one side of the sandblasting chamber 2, and a recycling tank 24 is provided below the door 23. The recycling tank 24 is fixedly connected to the sandblasting chamber 2. The air inlet 21 and the air outlet 22 are connected by a pipe. A fan and a dust removal mechanism are provided on the connecting pipe. The fan includes an air inlet and an air outlet. The air outlet is connected to the air inlet 21 by a pipe, and the air inlet is connected to the air outlet 22 by a pipe. Thus, the dust removal mechanism can promote the air flow inside the sandblasting chamber 2 and filter the dust inside the sandblasting chamber 2, so as to avoid the sandblasting quality being reduced due to excessive dust inside the sandblasting chamber 2 during sandblasting. The bottom of the sandblasting room 2 is equipped with two sets of partition plates 25, forming a storage area between the partition plates 25, which is convenient for placing the workpiece to be sandblasted. The sand material after sandblasting can fall from the partition plates 25, which is convenient for unified sand material recycling.

[0023] It should be noted that the dust removal mechanism can be a bag filter, a pulse dust collector, or other dust filtration and collection mechanisms; the interior of the sandblasting room 2 is equipped with rubber pads to prevent the high-speed moving sand from damaging the inner wall of the sandblasting room 2 and reducing the service life of the sandblasting room 2.

[0024] Specifically, such as Figures 2-5As shown, the automatic sandblasting mechanism 3 includes a dual-axis moving component 31, a folding seat 33, and an angle adjusting component 35. The dual-axis moving component 31 is fixed to the side wall of the sandblasting chamber 2 near the air inlet 21. A moving seat 32 is provided on the dual-axis moving component 31. The angle adjusting component 35 is fixed to the side of the folding seat 33 away from the dual-axis moving component 31. A connecting seat 34 is fixedly connected to the side of the folding seat 33 away from the dual-axis moving component 31. The connecting seat 34 is L-shaped and has a through hole at the top center. The angle adjusting component 35 is provided on the connecting seat 34. A protective cover 38 is provided on the folding seat 33. The dual-axis moving component 31 is used to drive the folding seat 33 to move up, down, left, and right. The folding seat 33 is used to drive the angle adjusting component 35 to move towards or away from the dual-axis moving component 31. Thus, the dual-axis moving component 31 and the folding seat 33 can drive the angle adjusting component 35 to move in three-dimensional space inside the sandblasting chamber 2.

[0025] Furthermore, such as Figures 3-5 As shown, the angle adjustment assembly 35 includes a sleeve 351, a first motor 353, a clamp 356, and a second motor 3510. The sleeve 351 is disposed in the through hole of the connecting seat 34 and is rotatably connected to the connecting seat 34. A first support seat 352 is fixedly connected to the top of the connecting seat 34. The first motor 353 is fixed to the top of the first support seat 352. The output end of the first motor 353 passes through the first support seat 352 and is gear-driven connected to the sleeve 351. A base 354 is fixedly connected to the top of the sleeve 351. A rotating plate 355 is hinged to the top of the base 354 near the center of the sleeve 351. A movable seat 358 is hinged to the top of the base 354 away from the center of the sleeve 351. A movable seat 357 is hinged to the bottom of the rotating plate 355. A lead screw 359 is connected to the movable seat 357 by a bearing. The lead screw 359 is connected to the movable seat 358 by a lead screw drive. A motor 3510 is fixed on the movable seat 358. A lead screw is fixedly connected to the lead screw 359. The nut is located on the side of the movable seat 358 away from the movable seat 357. The output end of the motor 3510 is connected to the nut via gear transmission. The rotation of the motor 3510 drives the nut to rotate through gear transmission, which in turn drives the lead screw 359 to rotate. Then, through the lead screw transmission, the movable seat 358 moves along the axis of the lead screw 359, reducing or increasing the distance between the movable seat 357 and the movable seat 358, thereby achieving the effect of adjusting the tilt angle of the rotating plate 355. Two sets of clamps 356 are provided on the side of the rotating plate 355 near the center of the sleeve 351. The two sets of clamps 356 are equipped with nozzles 36. The two sets of clamps 356 are connected by fasteners, such as bolts and nuts. A connecting pipe 37 is connected to the upper part of the nozzle 36.

[0026] Specifically, such as Figure 4 and Figure 6As shown, the sand return mechanism 4 includes a return hopper 41 and an elevator 42. The return hopper 41 is located in the foundation pit and at the bottom of the sandblasting room 2. The elevator 42 is located on one side of the sandblasting room 2. A feed hopper 421 is provided at the bottom of the elevator 42, and a discharge pipe 422 is provided at the top of the elevator 42. The bottom of the return hopper 41 is connected to the feed hopper 421 through a pipe. A magnetic separator is provided on the connecting pipe. The magnetic separator is used to remove metal debris from the recycled sand.

[0027] It should be noted that the hoist 42 is an existing device, and will not be described in detail here.

[0028] Specifically, such as Figures 6-11 As shown, the feeding mechanism 5 includes a temporary storage bin 52, two sets of feeding components 53, two sets of recycling components 54, and a feeding bin 57. A support frame 1 51 and a support frame 2 56 are fixedly connected to the top of the ground 1. The temporary storage bin 52 is fixed on the support frame 1 51, and the feeding bin 57 is fixed on the support frame 2 56. The temporary storage bin 52 is located above the feeding bin 57. The bottom of the temporary storage bin 52 is connected to the top of the feeding bin 57 via a pipeline. A valve 58 is installed on the connecting pipeline. A feeding pipe 59 is connected to the bottom of the feeding bin 57. The feeding pipe 59 is connected to the other end of the connecting pipe 37. The top of the temporary storage bin 52 is connected to the discharge pipe 422, so that the sand return mechanism 4 can transfer the sand after sandblasting to the inside of the temporary storage bin 52, which facilitates continuous sandblasting operations. The two sets of material distribution components 53 and the two sets of recycling components 54 are located inside the temporary storage bin 52. The bottom of the temporary storage bin 52 is equipped with two sets of electric doors 55, which correspond to the positions of the two sets of recycling components 54. The material distribution components 53 are used to screen and unclog the sand entering the temporary storage bin 52, and the recycling components 54 are used to recover and promote the air flow inside the temporary storage bin 52. When the electric doors 55 are opened, they are used by staff to collect waste materials in a unified manner.

[0029] It should be noted that the feeding pipe 59 is equipped with a power source and a pressure tank. After the compressed air is purified and dried, it is introduced into the pressure tank, so that the compressed air carries the abrasive through the feeding pipe 59 to the nozzle 36 for sandblasting the surface of the workpiece.

[0030] Furthermore, such as Figure 6 As shown, the top of the temporary storage bin 52 is fixedly connected to an air extraction port 521 and a second feed hopper 522. The feed hopper 522 is connected to a second fan and a second dust removal mechanism. The second dust removal mechanism has the same structure as the first dust removal mechanism. The air extraction port 521 is used for manually adding sand and is in a closed state when no material is being added.

[0031] It should be noted that a level gauge is installed inside the feeding hopper 57. When the sand inside the feeding hopper 57 reaches the maximum level, the valve 58 closes, stopping the sand from entering the feeding hopper 57 from the temporary storage hopper 52. When the sand inside the feeding hopper 57 reaches the minimum level, the valve 58 opens, allowing the sand from the temporary storage hopper 52 to enter the feeding hopper 57. This ensures that the sand in the temporary storage hopper 52 remains stable, reduces the need for staff to replenish the sand, and improves the continuity of the sandblasting operation.

[0032] Furthermore, such as Figures 9-10 As shown, the material distribution assembly 53 includes a motor 531, two sets of conveying parts and two sets of movable parts. A support base 2 is fixedly connected to the side of the temporary storage bin 52. The motor 531 is fixed on the support base 2. The two sets of conveying parts are set inside the temporary storage bin 52, and the two sets of conveying parts are set in different directions, tilting towards the bottom of the temporary storage bin 52. The two sets of movable parts are respectively set inside the two sets of conveying parts.

[0033] like Figures 9-10 As shown, the conveyor section includes a drive shaft 532, a driven shaft 533, a conveyor belt 534, two sets of connecting rods 536, and a motor 5313. The motor 531 is fixedly connected to the drive shaft 532 of the right conveyor section. The output end of the motor 531 is connected to the drive shaft 532 of the left conveyor section through a gear transmission combined with a pulley transmission. When the motor 531 starts, it rotates clockwise, which drives the drive shaft 532 of the right conveyor section to rotate clockwise. At the same time, it drives the drive shaft 532 of the right conveyor section to rotate counterclockwise through a gear transmission combined with a pulley transmission, so that the upper part of the two sets of conveyors tends to move away from the center of the temporary storage bin 52. Two sets of connecting rods 536 are located at the two ends of the drive shaft 532 and the driven shaft 533, respectively. The two ends of the connecting rods 536 are connected to the bearings of the drive shaft 532 and the driven shaft 533, respectively. The connecting rods 536 are used to provide support for the drive shaft 532 and the driven shaft 533. The conveyor belt 534 is mounted on the drive shaft 532 and the driven shaft 533. The conveyor belt 534 is provided with filter holes to form a screen. Several partition bars 535 are fixedly connected to the conveyor belt 534. The partition bars 535 are used to limit the irregularly shaped sand material and prevent it from falling into the bottom of the temporary storage bin 52 and entering the feeding bin 57.

[0034] The temporary storage compartment 52 has two sets of arc-shaped through slots 523 on its side. The driven shaft 533 is located in the through slots 523. An arc-shaped sliding groove 5310 and an arc-shaped support base 5312 are fixedly connected to the outer wall of the temporary storage compartment 52. A slide bar 5311 is slidably connected to the sliding groove 5310. The motor 5313 is fixed to the support base 5312. A closed plate 5314 is connected to the driven shaft 533 by a bearing. The output end of the motor 5313 passes through the support base 5312 and is geared to one side of the slide bar 5311. The other side of the slide bar 5311 is geared to the closed plate 5314. The motor 5313 starts... The motor rotates counterclockwise, and through the gear transmission between the output end of the motor 5313 and the slide bar 5311, the slide bar 5311 rotates clockwise on the sliding groove 5310, tending to move upward. Then, through the gear transmission between the slide bar 5311 and the closing plate 5314, the closing plate 5314 rotates counterclockwise, causing the closing plate 5314 to drive the driven shaft 533 to move upward inside the through groove 523. This causes the conveying part on the left to have a smaller tilt angle and the conveying part on the right to have a larger tilt angle, thereby adjusting the position of the driven shaft 533 inside the arc-shaped through groove 523 and adjusting the tilt angle of the conveying part.

[0035] It should be noted that the curvature of the through groove 523 is consistent with the curvature of the driven shaft 533 when it rotates around the driving shaft 532, and the center of the arc-shaped sliding groove 5310 and the arc-shaped support seat 5312 coincides with the axis of the driving shaft 532; the gear located on the closed plate 5314 is sleeved on the driven shaft 533.

[0036] Furthermore, such as Figure 8 and Figure 11 As shown, the movable part includes several connecting rods 537. The connecting rods 537 are located between two sets of connecting rods 536. The two ends of the connecting rods 537 are fixedly connected to the connecting rods 536. Several rotating blocks 538 are connected to the connecting rods 537 by bearings. The rotating blocks 538 are provided with slots 539. When the rotating blocks 538 are subjected to different forces above or in the direction of the slots 539, the rotating blocks 538 can rotate around the connecting rods 537. In the initial state, the rotating blocks 538 are not subjected to external forces, but the rotating blocks 538 have their own gravity. The rotating blocks 538 are tilted downwards, and the bottom of the rotating blocks 538 can contact the inside of the conveyor belt 534 to clean the inside of the conveyor belt 534.

[0037] It should be noted that the straight line containing several connecting rods 536 is located below the line connecting the center of the drive shaft 532 and the center of the driven shaft 533, and the length of the rotating block 538 is greater than the vertical distance between the line connecting the center of the drive shaft 532 and the center of the driven shaft 533 and the inside of the conveyor belt 534.

[0038] Furthermore, such as Figures 7-9 and Figure 11As shown, the recycling assembly includes a partition plate 541, a telescopic plate 542, and an air pipe 545. The partition plate 541 is fixed to the bottom of the interior of the temporary storage chamber 52. The partition plate 541 is L-shaped, so that the partition plate 541 and the inner wall of the temporary storage chamber 52 form a recycling chamber. The top of the partition plate 541 is hinged to the telescopic plate 542. The end of the telescopic plate 542 away from the hinge with the partition plate 541 is provided with an inlet 543. The outer wall of the temporary storage chamber 52 is fixedly connected to a motor 544. The output end of the motor 544 passes through the temporary storage chamber 52 and is fixedly connected to the hinge with the telescopic plate 542. The motor 544 is started to drive the telescopic plate 542 to rotate around the hinge with the partition plate 541, thereby adjusting the tilt angle of the telescopic plate 542. During this process, the telescopic plate 542 adaptively extends and retracts, continuously maintaining contact with the inner wall of the temporary storage chamber 52 to form support.

[0039] Several sets of air outlets are provided above the partition plate 541, with several air outlets in each set. Air pipes 545 are installed inside the air outlets. Several partition strips 546 are fixedly connected to the partition plate 541. The number of partition strips 546 is the same as the number of air outlets. The partition strips 546 are located above the air outlets. Several air pipes 545 are connected to a main pipe, which is connected to the air outlet of the blower. The blower is used to introduce air into the temporary storage bin 52 to promote the flow of gas inside the temporary storage bin 52, thereby expelling the dust generated during the screening and conveying of sand inside the temporary storage bin 52. The partition strips 546 are inclined to prevent falling sand from entering the air outlets and causing blockage, which would affect the normal use of the recycling components.

[0040] Working principle of automatic feeding device for sandblasting equipment: After placing the workpiece to be sandblasted in the storage area between the two sets of recovery tanks 24, the staff closes the door 23, starts the power source to carry out the sandblasting operation, and then controls the dual-axis moving component 31 and folding seat 33 to start according to actual needs, and adjusts the spatial position of the angle adjustment component 35 inside the sandblasting room 2; controls the motor 1 353 and sleeve 351 to start, and adjusts the angle and direction of the nozzle 36 during sandblasting, so that the workpiece can be sandblasted from all directions, reducing the labor intensity of manual sandblasting and improving sandblasting efficiency; controls the fan 1 and dust removal mechanism 1 to start, and adsorbs and filters the dust generated by sandblasting inside the sandblasting room 2; controls the fan 2 and dust removal mechanism 2 to start, and adsorbs and filters the dust mixed with the sand entering the temporary storage bin 52.

[0041] After the sandblasting of the workpiece is reflected by the workpiece surface and the rubber pad inside the sandblasting chamber 2, the sand falls from the partition plate 25 into the return hopper 41. Under the action of the sand's own gravity, it enters the pipeline. After the metal debris is removed by the magnetic separator, it enters the feed hopper 421 and is then lifted by the elevator 42 to the top of the elevator 42, so that the sand enters the temporary storage chamber 52 from the discharge pipe 422.

[0042] When the sand enters the temporary storage bin 52 in the initial state, control the motor 4 5313 on the right conveyor to start rotating clockwise to reduce the tilt angle of the conveyor, and control the motor 4 5313 on the left conveyor to start rotating counterclockwise to reduce the tilt angle of the conveyor. During this process, due to the small tilt angle, the sand material first falls onto the conveyor belt 534 of the right conveyor section. The top part of the sand material will slide onto the conveyor belt 534 of the left conveyor section. Some irregular sand material will be blocked by the partition 535 and stay above the conveyor belt 534.

[0043] Because the conveyor belt 534 is equipped with filter holes, forming a sieve, when both sets of conveyor sections are at a small inclination angle, the motors 5313 on both sets of conveyor sections can be started to rotate clockwise and counterclockwise to adjust the inclination angle of the two sets of conveyor sections. At the same time, it promotes the circular sand material on the conveyor belt 534 to slide down to the bottom of the temporary storage bin 52 in sequence. It can also screen the sand material on the conveyor belt 534, separating the powdery sand material on the conveyor belt 534. After being carried by the airflow inside the temporary storage bin 52, it is discharged from the feed hopper 522 and adsorbed and filtered by the dust removal mechanism. At the same time, this screening process can also gather small, irregular, and broken sand material at the bottom of the sand accumulation on the conveyor belt 534, which is blocked by the partition bar 535 and remains on the conveyor belt 534.

[0044] Then, control motor 531 starts and rotates clockwise, causing the two sets of conveyor sections to move away from the center of the temporary storage bin 52. This causes the sand material blocked by partition 535 and left on the conveyor belt 534 to be conveyed to the recycling component 54, fall onto the telescopic plate 542, and enter the recycling bin formed by the partition plate 541 and the inner wall of the temporary storage bin 52 through the inlet 543. When the amount of sand material inside the recycling bin reaches a certain amount, control electric door 55 to open, and workers will collect the waste material in a unified manner. During this process, motor 544 can be started as needed to adjust the tilt angle of the telescopic plate 542, so that the telescopic plate 542 continues to be in contact with the inner wall of the temporary storage bin 52 to form a support state.

[0045] As the sand material falls sequentially to the right conveyor section, the left conveyor section, and the bottom of the temporary storage bin 52, the running distance of the sand material is extended. At this time, due to the start of the second fan and the second dust removal mechanism, there is gas flow inside the temporary storage bin 52, which allows the airflow to carry a large amount of dust in the sand material out of the second feed hopper 522. The dust removal mechanism adsorbs and filters the dust, further reducing the dust in the sand material and preventing the sand material from re-entering the feeding bin 57 and the sandblasting room 2. This would reduce the sandblasting quality and the sandblasting environment inside the sandblasting room 2 due to excessive dust.

[0046] Meanwhile, since the air outlet is located on the partition plate 541, the airflow direction is upward, and the conveyor belt 534 is equipped with filter holes, part of the airflow introduced into the temporary storage chamber 52 by the second fan through the air pipe 545 directly impacts the conveyor belt 534 to remove dust from its surface, and then flows into the temporary storage chamber 52, carrying away the dust dispersed inside; part of the airflow can enter the conveyor belt 534 through the filter holes. Because the rotating block 538 is equipped with an empty slot 539, the empty slot 539... The rotating block 538 can withstand the impact of a large area of ​​airflow, causing it to be subjected to an upward force. This causes the rotating block 538 to rotate around the point of rotational connection with the connecting rod 537 towards the upper surface of the conveyor belt 534. When the upward force of the airflow on the rotating block 538 reaches a certain level, it can contact the upper interior of the conveyor belt 534 and make a slight impact on the upper interior of the conveyor belt 534, causing the conveyor belt 534 to exhibit a slight vibration state, which can improve the dust screening effect of the conveyor belt 534. As the screening effect of conveyor belt 534 is improved at this time, dust will enter the interior of conveyor belt 534 through the filter holes. Some of it will fall directly into the interior of conveyor belt 534 and remain there, or continue to fall from the filter holes of conveyor belt 534 into the temporary storage bin 52. Some of it will fall onto the upper surface of rotating block 538, increasing the weight of rotating block 538. When the weight of rotating block 538 and the weight of the dust above it are greater than the force exerted by the airflow on rotating block 538, rotating block 538 will rotate around the rotating connection point with connecting rod 2 537 towards the lower surface of conveyor belt 534, contacting the lower interior of conveyor belt 534 and slightly impacting the lower interior of conveyor belt 534, causing conveyor belt 534 to vibrate slightly. This can improve the dust screening effect of conveyor belt 534 and promote the discharge of dust from inside conveyor belt 534 through the filter holes. When the temporary storage bin 52 is not needed to temporarily store sand or when sand screening is not required, the operating power of the second fan can be controlled by the gap. By utilizing the relationship between the force of the airflow on the rotating block 538 and the weight of the rotating block 538, the rotating block 538 alternately contacts the upper and lower parts of the conveyor belt 534, causing a slight impact and slight vibration on the conveyor belt 534. This promotes the discharge of dust from inside the conveyor belt 534 and prevents the service life of the conveyor belt 534 from being reduced due to excessive dust accumulation inside the conveyor belt 534.

[0047] Because the length of the rotating block 538 is greater than the vertical distance between the line connecting the center of the drive shaft 532 and the center of the driven shaft 533 and the interior of the conveyor belt 534, when the motors 5313 on both sets of conveyor sections are started to rotate clockwise and counterclockwise to adjust the tilt angle of the two sets of conveyor sections, the rotating block 538 tends to be vertical under the action of gravity, with its bottom contacting the interior of the conveyor belt 534. However, as the tilt angle of the conveyor section changes, the vertical distance between the rotating block 538 and the conveyor belt 534 directly below the hinge point of the connecting rod 537 will change. The changes in the contact position between the rotating block 538 and the conveyor belt 534 will change. This not only enhances the impact effect on the conveyor belt 534 and increases the vibration intensity when there is airflow impacting the rotating block 538, promoting the discharge of dust from the bottom filter holes of the conveyor belt 534, promoting the falling of dust from the outside of the conveyor belt 534 and preventing filter hole blockage, but also allows for continuous scraping of the inside of the conveyor belt 534 by the rotating block 538 in contact with the conveyor belt 534 when there is no airflow or little airflow impact, preventing the accumulation of sand and dust on the inner wall of the conveyor belt 534.

[0048] The above method enables fully automatic and all-around sandblasting of workpieces, reducing the labor intensity of workers when sandblasting workpieces. At the same time, it can automatically complete the sand material feeding, avoiding the situation where sandblasting operations cannot be carried out due to waiting time for material feeding, thereby improving the continuity of sandblasting operations when using sandblasting equipment.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic feeding device for sandblasting equipment, comprising a ground (1), a sandblasting chamber (2), an automatic sandblasting mechanism (3), a sand return mechanism (4), and a feeding mechanism (5), characterized in that, A foundation pit is provided below the ground (1). The sandblasting room (2) and the feeding mechanism (5) are fixed above the ground (1). The automatic sandblasting mechanism (3) is located inside the sandblasting room (2). The sand return mechanism (4) is located inside the foundation pit. The sand return mechanism (4) is connected to the bottom of the sandblasting room (2). The feeding mechanism (5) is connected to the automatic sandblasting mechanism (3) and the sand return mechanism (4). The feeding mechanism (5) includes a temporary storage bin (52), two sets of feeding components (53), two sets of recycling components (54), and a feeding bin (57); The material distribution assembly (53) includes a motor (531), two sets of conveying parts and two sets of movable parts. The temporary storage bin (52) is fixedly connected to a support base (2) on its side. The motor (531) is fixed on the support base (2). The two sets of conveying parts are located inside the temporary storage bin (52) and the two sets of conveying parts are located in different directions. The two sets of movable parts are located inside the two sets of conveying parts respectively.

2. The conveying unit includes a drive shaft (532), a driven shaft (533), a conveyor belt (534), two sets of connecting rods (536) and a motor (5313). The conveyor belt (534) is provided with filter holes to form a screen. The movable part includes several connecting rods 2 (537), which are located between two sets of connecting rods 1 (536). The two ends of the connecting rods 2 (537) are fixedly connected to the connecting rods 1 (536) respectively. Several rotating blocks (538) are connected to the connecting rods 2 (537) by bearings. The rotating blocks (538) are provided with slots (539).

3. The automatic feeding device for sandblasting equipment according to claim 1, characterized in that, The top of the sandblasting room (2) is fixedly connected to an air inlet (21), the side of the sandblasting room (2) is provided with an air outlet (22), a door (23) is provided on one side of the sandblasting room (2), a recycling trough (24) is provided below the door (23), the recycling trough (24) is fixedly connected to the sandblasting room (2), the air inlet (21) and the air outlet (22) are connected by a pipe, and a fan and a dust removal mechanism are provided on the connecting pipe; The bottom of the sandblasting room (2) is provided with two sets of partition panels (25), and a storage area is formed between the partition panels (25).

4. The automatic feeding device for sandblasting equipment according to claim 2, characterized in that, The automatic sandblasting mechanism (3) includes a dual-axis moving component (31), a folding seat (33), and an angle adjustment component (35). The dual-axis moving component (31) is fixed to the side wall of the sandblasting chamber (2) near the air inlet (21). A moving seat (32) is provided on the dual-axis moving component (31). The angle adjustment component (35) is fixed to the side of the folding seat (33) away from the dual-axis moving component (31). A connecting seat (34) is fixedly connected to the side of the folding seat (33) away from the dual-axis moving component (31). A through hole is provided at the top center of the connecting seat (34). The angle adjustment component (35) is provided on the connecting seat (34). A protective cover (38) is provided on the folding seat (33).

5. The automatic feeding device for sandblasting equipment according to claim 3, characterized in that, The angle adjustment assembly (35) includes the sleeve (351), motor one (353), clamp (356) and motor two (3510). The sleeve (351) is disposed in the through hole of the connecting seat (34) and is rotatably connected to the connecting seat (34). The top of the connecting seat (34) is fixedly connected to the support seat one (352). The motor one (353) is fixed to the top of the support seat one (352). The output end of the motor one (353) passes through the support seat one (352) and is gear-driven connected to the sleeve (351). The top of the sleeve (351) is fixedly connected to a base (354). A rotating plate (355) is hinged to the top of the base (354) near the center of the sleeve (351). A movable seat two (358) is hinged to the top of the base (354) away from the center of the sleeve (351). A movable seat one (357) is hinged to the bottom of the rotating plate (355). A lead screw (359) is bearing-connected to the movable seat one (357). The lead screw (359) is connected to the lead screw of the movable seat two (358) via a lead screw drive. The motor two (3510) is fixed on the movable seat two (358). A lead screw nut is fixedly connected to the lead screw (359). The lead screw nut is located on the side of the movable seat two (358) away from the movable seat one (357). The output end of the motor two (3510) is connected to the lead screw nut via a gear drive. Two sets of clamps (356) are provided on the side of the rotating plate (355) near the center of the sleeve (351). The two sets of clamps (356) are provided with nozzles (36). The two sets of clamps (356) are connected by fasteners. A connecting pipe (37) is connected to the upper part of the nozzle (36).

6. The automatic feeding device for sandblasting equipment according to claim 4, characterized in that, The sand return mechanism (4) includes a return hopper (41) and an elevator (42). The return hopper (41) is located in the foundation pit and at the bottom of the sandblasting room (2). The elevator (42) is located on one side of the sandblasting room (2). The elevator (42) has a feed hopper (421) at its lower part and a discharge pipe (422) at its upper part. The bottom of the return hopper (41) is connected to the feed hopper (421) through a pipeline.

7. The automatic feeding device for sandblasting equipment according to claim 5, characterized in that, The ground (1) is fixedly connected to the top of the support frame one (51) and the support frame two (56). The temporary storage bin (52) is fixed on the support frame one (51), and the feeding bin (57) is fixed on the support frame two (56). The temporary storage bin (52) is located above the feeding bin (57). The bottom of the temporary storage bin (52) is connected to the top of the feeding bin (57) by a pipeline. A valve (58) is provided on the connecting pipeline. The bottom of the feeding bin (57) is connected to a feeding pipe (59). The feeding pipe (59) is connected to the other end of the connecting pipe (37). The top of the temporary storage bin (52) is connected to the discharge pipe (422); The two sets of material distribution components (53) and the two sets of recycling components (54) are located inside the temporary storage bin (52). The bottom of the temporary storage bin (52) is provided with two sets of electric doors (55), and the two sets of electric doors (55) correspond to the positions of the two sets of recycling components (54).

8. An automatic feeding device for sandblasting equipment according to claim 6, characterized in that, The top of the temporary storage bin (52) is fixedly connected to an air extraction port (521) and a second feeding hopper (522), and the second feeding hopper (522) is connected to a second fan and a second dust removal mechanism via a pipeline.

9. An automatic feeding device for sandblasting equipment according to claim 7, characterized in that, The motor three (531) is fixedly connected to the drive shaft (532) of the right-side transmission unit, and the output end of the motor three (531) is connected to the drive shaft (532) of the left-side transmission unit through gear transmission and pulley transmission. The two sets of connecting rods (536) are located at the two ends of the drive shaft (532) and the driven shaft (533), respectively, and the two ends of the connecting rods (536) are connected to the bearings of the drive shaft (532) and the driven shaft (533), respectively. The conveyor belt (534) is mounted on the drive shaft (532) and the driven shaft (533), and a plurality of spacers (535) are fixedly connected to the conveyor belt (534).

10. An automatic feeding device for sandblasting equipment according to claim 8, characterized in that, The temporary storage bin (52) has two sets of arc-shaped through slots (523) on its side. The driven shaft (533) is located in the through slot (523). The outer wall of the temporary storage bin (52) is fixedly connected to an arc-shaped sliding groove (5310) and an arc-shaped support base (5312). A slide bar (5311) is slidably connected to the sliding groove (5310). The motor (5313) is fixed on the support base (5312). A closed plate (5314) is connected to the driven shaft (533) by a bearing. The output end of the motor (5313) passes through the support base (5312) and is geared to one side of the slide bar (5311). The other side of the slide bar (5311) is geared to the closed plate (5314).

11. An automatic feeding device for sandblasting equipment according to claim 9, characterized in that, The recycling assembly includes a partition plate (541), a telescopic plate (542), and an air pipe (545). The partition plate (541) is fixed to the bottom of the interior of the temporary storage bin (52). The partition plate (541) is L-shaped. The partition plate (541) and the inner wall of the temporary storage bin (52) form a recycling bin. The top of the partition plate (541) is hinged to the telescopic plate (542). The end of the telescopic plate (542) away from the end that is hinged to the partition plate (541) is provided with an inlet (543). The outer wall of the temporary storage bin (52) is fixedly connected to a motor (544). The output end of the motor (544) passes through the hinge between the temporary storage bin (52) and the telescopic plate (542) and is fixedly connected.

12. Several sets of air outlets are provided above the partition plate (541), and air pipes (545) are provided inside the air outlets. Several partition strips (546) located above the air outlets are fixedly connected to the partition plate (541). Several air pipes (545) are connected to a main pipe, and the main pipe is connected to the air outlet of the fan.

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