Intelligent dust control type plate edge grinding device

Abstract

This invention discloses an intelligent dust-controlled sheet metal edge grinding device, relating to the technical field of sheet metal processing. It includes a workbench with a drive mechanism inside. A belt grinding assembly is arranged at the power output end of the drive mechanism. An intelligent dust removal unit is also arranged on the workbench. The drive mechanism drives the belt grinding assembly to reciprocate vertically to grind the side edge of the sheet metal. The intelligent dust removal unit includes a dust removal port connected to a dust removal fan and a dust removal hood installed at the dust removal port. The air inlet of the dust removal hood is located on the side of the sheet metal. The dust removal hood encloses the belt grinding assembly. The dust removal hood includes an upper hood and a lower hood, both of which have elastic deformation capabilities. During the vertical upward movement of the belt grinding assembly, the upper hood expands and the lower hood contracts; during the vertical downward movement of the belt grinding assembly, the upper hood contracts and the lower hood expands.

Description

Technical Field

[0001] This invention relates to the technical field of sheet metal processing, specifically to an intelligent dust-controlled sheet metal edge grinding device. Background Technology

[0002] As is well known, after the board is cut, the cut edges need to be ground to remove burrs. During the grinding process, dust will inevitably be generated. Therefore, dust removal equipment needs to be installed on the grinding device to remove the dust generated during the grinding process in a timely manner.

[0003] To enable intelligent operation of the edge grinding and dust removal process and control the dust removal effect, dust concentration sensors are installed in the dust removal equipment to collect dust concentration in real time. When the concentration exceeds the standard, the frequency of the dust removal fan can be automatically increased and the negative pressure can be increased. A differential pressure sensor is also installed at the filter element to detect the filter element pressure. If the blockage exceeds the standard, the pulse backflushing self-cleaning can be automatically triggered.

[0004] For example, the patent with announcement number CN211053364U, announcement date July 21, 2020, entitled "A Grinding Device for Building Boards," includes a machine body with a grinding chamber inside. A lifting platform and a hydraulic cylinder are fixedly connected to the upper end of the grinding chamber. A fixed plate is fixedly connected to the lower end of the lifting platform. A grinding roller is rotatably connected to the lower end of the fixed plate. One end of the grinding roller is fixedly connected to the output shaft of a motor. A rotating shaft, placed perpendicular to the grinding roller, is rotatably mounted on the lower end of the fixed plate away from the grinding roller. Several rotating discs are fixedly connected to the rotating shaft. Metal abrasive belts are rotatably connected to the outer side of the rotating discs. A fixed block is fixedly connected to the bottom of the hydraulic cylinder. A pressure plate wheel is rotatably connected to the fixed block. A dust removal device is fixedly installed at the top of the machine body. This patent uses a metal abrasive belt perpendicular to the grinding roller for grinding, making the grinding of the boards more comprehensive and uniform. By adding a dust removal device, the health effects of dust on workers are effectively suppressed, and dust accumulation in the machine is prevented.

[0005] The shortcomings of existing technologies are that in existing sheet metal edge grinding equipment, edge grinding and dust removal are mostly installed with rigid fixed structures, and the relative positions of the two are difficult to change. This results in the dust removal nozzles being unable to dynamically adapt to the dust generation points in real time, leading to problems such as large dust collection blind spots, low dust removal efficiency, dust accumulation in the cavity, and secondary dust generation. Summary of the Invention

[0006] The purpose of this invention is to provide an intelligent dust-controlled sheet metal edge grinding device, solving the technical problems in related technologies. To achieve the above objective, this invention provides the following technical solution:

[0007] An intelligent dust-controlled sheet metal edge grinding device includes a workbench with a drive mechanism inside. A belt sanding assembly is arranged at the power output end of the drive mechanism. An intelligent dust removal unit is also arranged on the workbench. The drive mechanism drives the belt sanding assembly to reciprocate vertically to sand the side edge of the sheet metal. The intelligent dust removal unit includes a dust removal port connected to a dust removal fan and a dust removal hood installed at the dust removal port. The air inlet of the dust removal hood is located at the side edge of the sheet metal. The dust removal hood encloses the belt sanding assembly. The dust removal hood includes an upper hood and a lower hood, both of which have elastic deformation capabilities. During the vertical upward movement of the belt sanding assembly, the upper hood expands and the lower hood contracts; during the vertical downward movement of the belt sanding assembly, the upper hood contracts and the lower hood expands.

[0008] As described above, both the upper and lower covers are oscillatingly arranged at the dust removal port. When there is no sheet material for edge grinding, the upper and lower covers move away from each other due to their own elasticity, and the size of the air inlet increases. A transmission component is arranged on the worktable. When there is sheet material for edge grinding, the transmission component transmits the squeezing force of the sheet material to the upper and lower covers, causing the upper and lower covers to move closer to each other, and the size of the air inlet decreases.

[0009] As mentioned above, both the elastically deformable portion of the upper cover and the elastically deformable portion of the lower cover are corrugated.

[0010] As mentioned above, several ball bearings are arranged at the positions corresponding to the air inlets on both the upper and lower covers; when the size of the air inlet decreases, the ball bearings make rolling contact with the plate.

[0011] The aforementioned transmission assembly includes two sets of first rods arranged on the worktable. One set of first rods corresponds to the plate entering the belt sanding assembly, and the other set of first rods corresponds to the plate leaving the belt sanding assembly. Each first rod has a first roller installed at the end away from the belt sanding assembly and a pressure roller installed at the end close to the belt sanding assembly. Pressure plates are installed on the upper cover and the lower cover at positions corresponding to the air inlets. During the stroke of the plate pressing the first roller, the pressure roller presses the pressure plate at the corresponding position, the upper cover and the lower cover move closer to each other, and the size of the air inlet becomes smaller.

[0012] As described above, each group of first rods is arranged on the workbench via two mounting plates. Each first rod is rotatably connected to its corresponding mounting plate via a second rod. Limiting bolts are provided on the mounting plates. Adjusting grooves are provided on the workbench at positions corresponding to each mounting plate. The limiting bolts are slidably arranged in the adjusting grooves along the direction of plate movement. The thickness of the pressure plate gradually increases from both ends toward the middle.

[0013] As mentioned above, the workbench is also equipped with two sets of limiting components. One set of limiting components corresponds to the plate entering the abrasive belt edge grinding component, and the other set of limiting components corresponds to the plate leaving the abrasive belt edge grinding component. During the stroke of the abrasive belt edge grinding component grinding the side edge of the plate, the limiting components restrict the plate from moving in the opposite direction due to the force exerted by the abrasive belt edge grinding component.

[0014] The aforementioned limiting assembly includes two pairs of second rollers arranged on the worktable, the second rollers rotating in one direction.

[0015] As described above, each pair of second rollers is arranged vertically on the worktable, and each pair of second rollers transmits power to the first rod at a nearby position through a third rod. When the sheet material is pressing the first roller, the two pairs of second rollers move closer to each other to press the sheet material based on the power transmission effect of the third rod.

[0016] As described above, the third rod is oscillating on the worktable, with one end hinged to a pair of corresponding second rollers and the other end movably connected to the corresponding first rod.

[0017] The beneficial effects of this invention are as follows: by using a dust collector hood to wrap the belt grinding assembly, and the upper and lower covers of the dust collector hood can expand and contract with the position changes of the belt grinding assembly, the effective collection chamber inside the dust collector hood will be adjusted synchronously with the position of the belt grinding assembly, always keeping the dust generation point in the center of the negative pressure zone, avoiding local eddies or dead corners, effectively blocking the dust from spreading to the outside, and also effectively improving the dust collection effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of an intelligent dust-control type sheet metal edge grinding device provided in an embodiment of the present invention;

[0020] Figure 2 This is a first-view perspective three-dimensional structural diagram of the internal structure of an intelligent dust-control type sheet metal edge grinding device provided in an embodiment of the present invention;

[0021] Figure 3 This is a second-view perspective three-dimensional structural diagram of the internal structure of an intelligent dust-control type sheet metal edge grinding device provided in an embodiment of the present invention;

[0022] Figure 4This is a top view schematic diagram of an intelligent dust-control type sheet metal edge grinding device provided in an embodiment of the present invention;

[0023] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure at point AA;

[0024] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure at point BB in the diagram;

[0025] Figure 7 This is a first-view exploded structural diagram of the dust removal hood and sanding belt membrane assembly of an intelligent dust-controlling sheet metal edge grinding device provided in an embodiment of the present invention.

[0026] Figure 8 This is a second-view exploded structural diagram of the dust removal cover and sanding belt membrane assembly of an intelligent dust-controlling sheet metal edge grinding device provided in an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Workbench; 10. Drive mechanism; 11. Sanding belt edge grinding assembly; 110. Mounting frame; 111. Drive roller; 112. Sanding belt; 2. Intelligent dust removal unit; 20. Dust removal port; 21. Upper cover; 22. Lower cover; 23. First rod; 24. First roller; 25. Pressure roller; 26. Pressure plate; 27. Mounting plate; 28. Second rod; 29. ​​Limit bolt; 30. Adjusting groove; 31. Air inlet; 32. Ball bearing; 33. Slide rail; 34. Slider; 35. Second roller; 36. Third rod; 37. Slide track; 38. Slide rod; 39. Baffle plate; 4. Sheet material. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the following will be described in conjunction with the appendix. Figure 1 To be continued Figure 8 The present invention will now be described in further detail.

[0030] In this embodiment of the invention, an intelligent dust-controlled sheet metal edge grinding device is provided, including a workbench 1. A drive mechanism 10 is provided within the workbench 1, and a belt sanding assembly 11 is arranged at the power output end of the drive mechanism 10. An intelligent dust removal unit 2 is also arranged on the workbench 1. The drive mechanism 10 drives the belt sanding assembly 11 to reciprocate vertically to sand the side edge of the sheet metal 4. The intelligent dust removal unit 2 includes a dust removal port 20 connected to a dust removal fan and a dust removal hood installed at the dust removal port 20. The air inlet 31 of the dust removal hood is located on the side edge of the sheet metal 4. The dust removal hood encloses the belt sanding assembly 11. The dust removal hood includes an upper hood 21 and a lower hood 22, both of which have elastic deformation capabilities. During the vertical upward movement of the belt sanding assembly 11, the upper hood 21 expands, and the lower hood 22 contracts; during the vertical downward movement of the belt sanding assembly 11, the upper hood 21 contracts, and the lower hood 22 expands.

[0031] Specifically, the belt sanding assembly 11 includes a mounting frame 110 and two drive rollers 111 mounted on the mounting frame 110. The two drive rollers 111 are connected by a sanding belt 112. During operation, the portion of the sanding belt 112 that contacts the side of the sheet 4 moves in the opposite direction to the sheet 4. The sheet 4 is first conveyed by the conveying mechanism into the area of ​​the workbench 11 where the belt sanding assembly 11 can perform edge sanding operations. Then, the sanding belt 112 performs edge sanding on the side of the sheet 4 during its operation. There are two sets of belt sanding assemblies 11. During the movement of the sheet 4, the two opposite sides of the sheet 4 can be sanded simultaneously. The drive mechanism 10 can simultaneously drive both drive rollers 111. During the edge grinding process of the sheet metal 4, dust is generated. The dust is then collected and removed in a timely manner by setting up an intelligent dust removal unit 2. This unit mainly includes a sensor for detecting dust concentration. When the dust concentration exceeds the standard, the frequency of the dust removal fan can be automatically increased and the negative pressure can be increased. A differential pressure sensor is also set at the filter element to detect the filter element pressure. If the blockage exceeds the standard, a pulse backflushing self-cleaning can be automatically triggered, thereby achieving the purpose of intelligent dust removal. However, the shortcomings of the existing technology are that the edge grinding and dust removal are mostly rigid fixed installation structures, and the relative positions of the two are difficult to change. This causes the dust removal nozzle to be unable to dynamically adapt to the dust generation point of the grinding in real time, resulting in problems such as large dust collection blind spots, low dust removal efficiency, dust accumulation in the cavity, and secondary dust emission.

[0032] Based on the aforementioned technical issues, in this embodiment, the belt sanding assembly 11 is configured for dynamic edge grinding. That is, the drive mechanism 10 includes not only a drive motor but also a reciprocating motion mechanism (this is prior art and will not be elaborated upon). The drive motor drives the reciprocating motion mechanism to move vertically back and forth, allowing the belt sanding assembly 11 to perform edge grinding on the board 4 while simultaneously moving vertically back and forth. The dust hood can enclose the belt sanding assembly 11. The dust-generating point of the sanding belt 112 during edge grinding of the board 4 is always within the dust hood. Furthermore, the upper cover 21 and lower cover 22 of the dust hood can extend and retract according to the positional changes of the belt sanding assembly 11. Specifically, the upper bottom surface of the upper cover 21 is connected to the upper end of the mounting frame 110, and the lower bottom surface of the lower cover 22 is connected to the lower end of the mounting frame 110. The portion of the upper cover 21 near the lower cover 22 is connected to the dust removal port 20. The lower cover 22, near the upper cover 21, is connected to the dust removal port 20. Both the upper cover 21 and the lower cover 22 have elastic deformation capabilities, which can adapt to the positional changes of the sanding belt edge grinding assembly 11. The dust removal port 20 is fixed in position, which ensures that the pipe length and bend angle from the dust removal fan to the dust removal hood remain unchanged, avoiding changes in airflow resistance caused by the movement of the hose, maintaining a stable negative pressure suction, and keeping the flow field inside the dust removal hood in the best capture state, reducing dust overflow. Moreover, the air inlet 31 of the dust removal hood is located on the side of the plate 4. That is, when the dust removal port 20 sucks away the dust inside the dust removal hood, the external airflow will enter the dust removal hood through the air inlet 31. The side of the plate 4 is the area that is edge-ground by the sanding belt 112. By utilizing the force of the airflow entering the dust removal hood, dust can be prevented from overflowing from the air inlet 31, so that dust can be blown into the dust removal hood in a timely manner.

[0033] In this embodiment, a dust collector hood is used to wrap the belt sanding assembly 11. The upper cover 21 and lower cover 22 of the dust collector hood can expand and contract with the position of the belt sanding assembly 11. The effective collection chamber inside the dust collector hood will be adjusted synchronously with the position of the belt sanding assembly 11, always keeping the dust generation point in the center of the negative pressure zone, avoiding local eddies or dead corners. This can effectively block the dust from spreading to the outside and also effectively improve the dust collection effect.

[0034] Preferably, the upper cover 21 and the lower cover 22 are both oscillatingly arranged on the dust removal port 20. When there is no plate 4 for edge grinding, the upper cover 21 and the lower cover 22 move away from each other due to their own elasticity, and the size of the air inlet 31 becomes larger. The workbench 1 is equipped with a transmission component. When there is plate 4 for edge grinding, the transmission component transmits the squeezing force of plate 4 to the upper cover 21 and the lower cover 22, and the upper cover 21 and the lower cover 22 move closer to each other, and the size of the air inlet 31 becomes smaller.

[0035] Specifically, when the edge of the board 4 is ground, the air inlet 31 becomes smaller, which increases the negative pressure at that point, allowing the airflow to quickly enter the dust collector hood and blow the dust from the dust-generating point into the dust collector hood. When the edge of the board 4 is not ground, the air inlet 31 becomes larger, which reduces the load on the dust collector fan. Therefore, in this embodiment, the part of the upper cover 21 near the lower cover 22 is oscillatingly positioned on the dust collector port 20, and the part of the lower cover 22 near the upper cover 21 is also oscillatingly positioned on the dust collector port 20. Then, utilizing their respective elastic deformation capabilities, when the edge of the board 4 is not ground, the upper cover... The upper cover 21 and the lower cover 22 are far apart, and the size of the air inlet 31 becomes larger. Conversely, when the plate 4 is being edged, the squeezing action of the plate 4 causes the upper cover 21 and the lower cover 22 to move closer to each other, and the size of the air inlet 31 becomes smaller. In order to accommodate the reciprocating movement of the sanding belt edge grinding assembly 11 in the vertical direction, the structures of the upper cover 21 and the lower cover 22 are both corrugated. In this way, the volume of the dust collector can be reduced and the stroke can be lengthened, so that the sanding belt 112 can be fully covered in the vertical movement within the limited equipment space without affecting the conveying of the plate 4, the replacement of the sanding belt 112, and other operating spaces.

[0036] In one optional embodiment, the transmission assembly includes two sets of first rods 23 arranged on the workbench 1. One set of first rods 23 corresponds to the plate 4 entering the belt grinding assembly 11, and the other set of first rods 23 corresponds to the plate 4 leaving the belt grinding assembly 11. Each first rod 23 has a first roller 24 installed at one end away from the belt grinding assembly 11 and a pressure roller 25 installed at the end close to the belt grinding assembly 11. Pressure plates 26 are installed on both the upper cover 21 and the lower cover 22 at positions corresponding to the air inlet 31. During the stroke of the plate 4 pressing the first roller 24, the pressure roller 25 presses the pressure plate 26 at the corresponding position, and the upper cover 21 and the lower cover 22 move closer to each other, and the size of the air inlet 31 becomes smaller.

[0037] That is, each group of first rods 23 consists of four rods, arranged in pairs. The two pairs of first rods 23 are arranged symmetrically about the plate 4 as an axis of symmetry. Each pair of two first rods 23 are arranged symmetrically on both sides of the moving direction of the plate 4. Then, a first roller 24 is installed at the end of each first rod 23 away from the abrasive belt edge grinding assembly 11, and a pressure roller 25 is installed at the end closer to the abrasive belt edge grinding assembly 11. In other words, the plate 4 can simultaneously exert a squeezing effect on the two opposing first rollers 24, causing the two first rods 23 in each group to swing in opposite directions. The two pressure rollers 25 will move closer to each other, so that pressure plates 26 are installed on the upper cover 21 and the lower cover 22 at the positions corresponding to the air inlet 31. That is, the two pressure plates 26 at opposite positions are simultaneously squeezed by the two pressure rollers 25 at opposite positions, thereby causing the parts of the upper cover 21 and the lower cover 22 at the air inlet 31 to move closer to each other, so that the size of the air inlet 31 is reduced. Conversely, when there is no plate 4 squeezing the first roller 24, the elastic deformation ability of the upper cover 21 and the lower cover 22 is used to make the two pressure rollers 25 at opposite positions move away from each other.

[0038] To accommodate edge grinding of plates 4 of different thicknesses, when the size of the air inlet 31 decreases, the compressive force on the plate 4 needs to remain basically consistent to avoid damaging the plate 4. Therefore, in the preferred embodiment, each group of first rods 23 is arranged on the workbench 1 via two mounting plates 27. Each first rod 23 is rotatably connected to the corresponding mounting plate 27 via a second rod 28. Limiting bolts 29 are provided on the mounting plates 27. Adjusting grooves 30 are provided on the workbench 1 at positions corresponding to each mounting plate 27. The limiting bolts 29 are slidably arranged in the adjusting grooves 30 along the moving direction of the plate 4. The thickness of the pressure plate 26 gradually increases from both ends toward the middle.

[0039] Specifically, the limiting bolt 29 can move along the moving direction of the plate 4 within the adjusting groove 30. It can be adjusted to a suitable position according to the change in the thickness of the plate 4. That is, when the thickness of the plate 4 increases, the swing amplitude of the first rod 23 will increase when the plate 4 squeezes the first roller 24. Therefore, the position of the pressure plate 26 squeezed by the pressure roller 25 should be lowered accordingly. In this way, the travel of the pressure roller 25 driven by the first rod 23 becomes longer, but the squeezing distance of the pressure plate 26 remains basically unchanged. This ensures that the squeezing force on plates 4 of different thicknesses remains consistent. That is, the thickness of the pressure plate 26 gradually increases from both ends to the middle. The limiting bolt 29 should move away from the sanding belt edge grinding assembly 11 within the adjusting groove. After the position is adjusted, the limiting bolt 29 is tightened, and the position of the mounting plate 27 is fixed.

[0040] In an optional embodiment, a plurality of ball bearings 32 are arranged on the upper cover 21 at the position corresponding to the air inlet 31 and on the lower cover 22 at the position corresponding to the air inlet 31; when the size of the air inlet 31 decreases, the ball bearings 32 roll into contact with the plate 4.

[0041] Specifically, by using the rolling contact between the ball bearings 32 and the plate 4, the wear on the surface of the plate 4 can be reduced. When the plate 4 is being edge-ground, the space between two adjacent ball bearings 32 is the necessary path for the external airflow to enter the dust collector. Several ball bearings 32 are equivalent to separating the air inlet 31 into smaller channels, which can better increase the local negative pressure, increase the flow rate of the airflow entering the dust collector, and effectively improve the dust removal effect at the dust generation point.

[0042] Preferably, the workbench 1 is also provided with two sets of limiting components. One set of limiting components corresponds to the plate 4 entering the sanding belt edge grinding component 11, and the other set of limiting components corresponds to the plate 4 leaving the sanding belt edge grinding component 11. During the stroke of the sanding belt edge grinding component 11 grinding the side of the plate 4, the limiting components restrict the plate 4 from moving in the opposite direction due to the force of the sanding belt edge grinding component 11.

[0043] Specifically, during the edge grinding process of sheet 4, the abrasive belt 112 applies a reverse force, but to achieve the specified thickness, the abrasive belt 112 also applies positive pressure to the side of sheet 4. Therefore, the reverse force applied by the abrasive belt 112 to sheet 4 tends to push sheet 4 in the opposite direction, which obviously has an adverse effect on the edge grinding process of sheet 4. Therefore, in this embodiment, two sets of limiting components are arranged on the workbench 1. When sheet 4 enters the edge grinding area of ​​the abrasive belt edge grinding component 11, it is restricted to move in the opposite direction by one set of limiting components. When the edge-ground portion of sheet 4 leaves the edge grinding area of ​​the abrasive belt edge grinding component 11, it is restricted to move in the opposite direction by the other set of limiting components, thereby ensuring that the edge grinding operation of sheet 4 can be carried out stably. In an optional embodiment, one set of limiting components is expanded, that is, the limiting component includes two pairs of second rollers 35 arranged on the workbench 1. The second rollers 35 rotate in one direction. For example, a ratchet and pawl mechanism is arranged at the end of the second rollers 35. The two pairs of second rollers 35 are arranged opposite each other in the vertical direction, and the distance between them is slightly... The thickness is less than that of the plate 4 being edge-ground, so the friction between the second roller 35 and the plate 4 can be appropriately increased to prevent slippage. Each pair of second rollers 35 is arranged vertically on the worktable 1, that is, two slide rails 33 are arranged on the worktable 1. The two slide rails 33 are placed at both ends of the axial direction of the second roller 35. Two sliders 34 are slidably arranged in each slide rail 33. A pair of second rollers 35 are installed on each slider 34. Each pair of second rollers 35 and the first rod 23 in a nearby position transmit power through a third rod 36. When the plate 4 presses the first roller 24, based on the power transmission effect of the third rod 36, the two pairs of second rollers 35 move closer to each other to press the plate 4.

[0044] That is, when the plate 4 exerts a squeezing effect on the first roller 24, the swing of the first rod 23 can push the corresponding pair of second rollers 35 to squeeze the surface of the plate 4 through the third rod 36. This ensures that the two pairs of second rollers 35 only come close to each other to squeeze the plate 4 when the plate 4 is being edge-ground. To adapt to providing different limiting forces for plates 4 of different thicknesses, that is, when the thinner plate 4 is being edge-ground, the force exerted by the abrasive belt 112 on the plate 4 will be reduced, so the limiting force of the second rollers 35 on the plate 4 does not need to be large. This achieves the goal of restricting the reverse movement of the plate 4 while also preventing the plate 4 from being crushed. However, for the thicker plate 4, the reverse force exerted by the abrasive belt 112 will be increased, so the limiting force of the second rollers 35 on the plate 4 should also be increased accordingly. Moreover, the thicker plate 4 is not easily crushed. Therefore, in a further embodiment, the third rod 36 is oscillating on the worktable 1. One end of the third rod 36 is hinged to a pair of corresponding second rollers 35, and the other end is movably connected to a corresponding first rod 23. That is, a slide rail 37 is provided at the end of the third rod 36 corresponding to the first rod 23. A slide rod 38 is provided in the slide rail 37. The slide rod 38 can slide and rotate in the slide rail 37. When the thickness of the plate 4 changes, the position of the mounting plate 27 needs to be adjusted, so the position of the first rod 23 changes, and the position of the slide rod 38 in the slide rail 37 changes. That is, the distance between the slide rod 38 and the swing axis of the third rod 36 changes, while the distance between the swing axis of the third rod 36 and the second roller 35 remains unchanged. When the distance between the slide rod 38 and the swing axis of the third rod 36 is less than the distance between the second roller 35 and the swing axis of the third rod 36, it can play the role of stroke amplification. The stroke amplification effect varies depending on the thickness of the plate 4. The thinner the plate 4, the smaller the stroke amplification, and vice versa.

[0045] Furthermore, two baffles 39 are oscillatingly installed inside the dust removal port 20. The two baffles 39 are arranged in a V-shape with their tops facing the inside of the dust removal hood. One baffle 39 is connected to the oscillation shaft of the upper hood 21, and the other baffle 39 is connected to the oscillation shaft of the lower hood 22. When the size of the air inlet 31 decreases, the covering area of ​​the two baffles 39 on the dust removal port 20 increases. When the size of the air inlet 31 increases, the covering area of ​​the two baffles 39 on the dust removal port 20 decreases. Thus, when the area of ​​the dust removal port 20 that is covered increases (at which time the plate 4 is edge-ground), a strong negative pressure and high wind speed are generated, which improves the dust removal efficiency. When the area of ​​the dust removal port 20 that is covered decreases (at which time the plate 4 is not edge-ground), it is in a standby state, and the large opening can release pressure and ventilate, reducing the load on the dust removal fan.

[0046] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. An intelligent dust-controlled sheet metal edge grinding device, comprising a worktable, a drive mechanism within the worktable, a belt sanding assembly arranged at the power output end of the drive mechanism, and an intelligent dust removal unit arranged on the worktable, characterized in that... The drive mechanism drives the sanding belt edge grinding assembly to reciprocate vertically to grind the side edge of the plate. The intelligent dust removal unit includes a dust removal port connected to a dust removal fan and a dust removal hood installed at the dust removal port. The air inlet of the dust removal hood is located on the side of the plate. The dust removal hood covers the sanding belt edge grinding assembly. The dust removal hood includes an upper hood and a lower hood, and both the upper hood and the lower hood have elastic deformation capabilities. During the vertical movement of the belt grinding assembly, the upper cover expands and the lower cover contracts. During the vertical downward movement of the belt grinding assembly, the upper cover contracts and the lower cover expands.

2. The intelligent dust-controlled sheet metal edge grinding device according to claim 1, characterized in that, The upper cover and the lower cover are both oscillatingly arranged at the dust removal port. When there is no plate material for edge grinding, the upper cover and the lower cover move away from each other due to their own elasticity, and the size of the air inlet becomes larger. The workbench is equipped with a transmission component. When the sheet metal is being edge-ground, the transmission component transmits the pressing force of the sheet metal to the upper and lower covers, causing the upper and lower covers to move closer to each other and the size of the air inlet to decrease.

3. The intelligent dust-controlled sheet metal edge grinding device according to claim 2, characterized in that, Both the elastically deformable portion of the upper cover and the elastically deformable portion of the lower cover are corrugated.

4. The intelligent dust-controlled sheet metal edge grinding device according to claim 2, characterized in that, Several ball bearings are arranged at the positions corresponding to the air inlets on both the upper and lower covers; when the size of the air inlet decreases, the ball bearings make rolling contact with the plate.

5. The intelligent dust-controlled sheet metal edge grinding device according to claim 2, characterized in that, The transmission assembly includes two sets of first rods arranged on the workbench. One set of first rods corresponds to the plate entering the sanding belt edge grinding assembly, and the other set of first rods corresponds to the plate leaving the sanding belt edge grinding assembly. Each first rod has a first roller installed at the end away from the sanding belt edge grinding assembly and a pressure roller installed at the end close to the sanding belt edge grinding assembly. Pressure plates are installed on the upper cover and the lower cover at the positions corresponding to the air inlets. During the stroke of the first roller in the sheet extrusion process, the pressure roller extrudes the pressure plate at the corresponding position, the upper cover and the lower cover move closer to each other, and the size of the air inlet becomes smaller.

6. The intelligent dust-controlled sheet metal edge grinding device according to claim 5, characterized in that, Each first rod is arranged on the workbench via two mounting plates. Each first rod is rotatably connected to its corresponding mounting plate via a second rod. Limit bolts are provided on the mounting plates. Adjustment grooves are provided on the workbench at positions corresponding to each mounting plate. The limit bolts slide along the direction of plate movement within the adjustment grooves. The thickness of the pressure plate gradually increases from both ends toward the middle.

7. The intelligent dust-controlled sheet metal edge grinding device according to claim 6, characterized in that, The workbench is also equipped with two sets of limiting components. One set of limiting components corresponds to the plate entering the abrasive belt edge grinding component, and the other set of limiting components corresponds to the plate leaving the abrasive belt edge grinding component. During the stroke of the abrasive belt edge grinding component grinding the side edge of the plate, the limiting components restrict the plate from moving in the opposite direction due to the force exerted by the abrasive belt edge grinding component.

8. The intelligent dust-controlled sheet metal edge grinding device according to claim 7, characterized in that, The limiting assembly includes two pairs of second rollers arranged on the worktable, the second rollers rotating in one direction.

9. The intelligent dust-controlled sheet metal edge grinding device according to claim 8, characterized in that, Each pair of second rollers is arranged vertically on the worktable, and each pair of second rollers transmits power to the first rod in a nearby position through a third rod. When the sheet material is pressed against the first roller, the two pairs of second rollers move closer to each other to press the sheet material based on the power transmission effect of the third rod.

10. The intelligent dust-controlled sheet metal edge grinding device according to claim 9, characterized in that, The third rod is oscillating on the worktable, with one end hinged to a pair of corresponding second rollers and the other end movably connected to a corresponding first rod.

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