A grinding machine

Abstract

The application relates to a grinding machine, belonging to the technical field of roll machining, which comprises a mounting frame and grinding wheels with different fineness arranged in sequence, the mounting frame is provided with a moving arm corresponding to each grinding wheel, the grinding wheel is movably and rotatably connected to the end of the corresponding moving arm, the mounting frame is provided with a moving assembly for driving the moving arm to move, the moving arm is provided with a sliding piece for driving the grinding wheel to move towards the roll, the mounting frame is provided with a rotating piece for driving the grinding wheel to rotate, the end of the moving arm close to the roll is rotatably connected with a detection roll, the detection roll is provided with a first contact point, the grinding wheel is internally provided with a second contact point, the first contact point and the second contact point are wirelessly connected with a control host, and the moving assembly is wirelessly connected with the control host. The application has the effects of reducing the adverse effects on the service life of the grinding wheel and improving the resource utilization rate.

Description

Technical Field

[0001] This application relates to the technical field of roll processing, and in particular to a grinding machine. Background Technology

[0002] Rolls are an important component of rolling mills, commonly used in the rolling and forming of metals. A roll grinding machine is a specialized device for the precision grinding and repair of rolls in industries such as steel, aluminum alloys, and non-ferrous metals.

[0003] Chinese Patent Publication No. CN116100380B discloses a roll grinding machine, which includes a movable grinding machine. The movable grinding machine is equipped with a grinding wheel mounting frame, on which are mounted rods and grinding wheels of the same size but with different surface abrasive grain fineness. Each grinding wheel is rotatably connected to a corresponding mounting rod. The movable grinding machine is equipped with a drive assembly. A mating wheel is connected to one end of each mounting rod near the grinding wheel. The mating wheel is coaxially and fixedly connected to the corresponding grinding wheel. An annular groove is formed on the mating wheel and connected to an elastic belt. Several elastic belts are embedded in the corresponding annular groove. A drive component is mounted on the movable grinding machine. A drive rod is connected to the drive shaft of the drive component and passes through several elastic belts. The grinding wheel mounting frame is also equipped with several limiting components for limiting the position of the mounting rods, which has the effect of shortening the processing cycle of the roll.

[0004] In related technologies, grinding is performed on the surface of the roll using grinding wheels with different abrasive grain fineness on the grinding wheel mounting frame. After prolonged use, the grinding wheel wears down and its size decreases, requiring replacement with a new grinding wheel. This can adversely affect the service life of the grinding wheel and lead to resource waste. Summary of the Invention

[0005] In order to reduce the adverse effects on the service life of grinding wheels and improve resource utilization, this application provides a grinding machine.

[0006] The grinding machine provided in this application adopts the following technical solution: A grinding machine includes a mounting frame and grinding wheels of different fineness arranged sequentially along the length of a roller. The mounting frame has movable arms corresponding to each grinding wheel. Each grinding wheel is movably and rotatably connected to the end of its corresponding movable arm. The mounting frame has a moving assembly for driving the movable arms to move. Each movable arm has a sliding component for driving the grinding wheel to move closer to the roller. The mounting frame has a rotating component for driving the grinding wheels to rotate. A detection roller is rotatably connected to the end of each movable arm near the roller. A first contact is installed on the detection roller. A second contact is installed inside each grinding wheel. Both the first and second contacts are wirelessly connected to a control host. The moving assembly is wirelessly connected to the control host.

[0007] By adopting the above technical solution, the moving component drives the moving arm to move the grinding wheel and the detection roller closer to the roll until the side wall of the detection roller abuts against the side wall of the roll. The control host receives the electrical signal from the first contact point and stops driving the moving arm to move. The sliding component drives the grinding wheel to move closer to the roll until the control host receives the electrical signal from the second contact point. At this time, the worn side wall of the grinding wheel abuts against the roll. The rotating component drives the grinding wheel to rotate, which facilitates grinding the surface of the roll, reduces the adverse effects on the service life of the grinding wheel, and improves resource utilization.

[0008] Optionally, the sliding member includes a sliding shaft with one end passing through and fixedly connected to the grinding wheel; a sliding seat is inserted into and slidably connected to the moving arm; the sliding shaft passes through the sliding seat and the moving arm and is rotatably connected to the sliding seat; the second contact is installed on the side of the sliding seat away from the roller and close to the roller; a sliding hole adapted to the sliding seat is opened on the moving arm; a lead screw adapted to the moving trajectory of the sliding seat is threaded through and threaded to the lower end of the sliding seat; the lead screw is rotatably connected to the moving arm; and a driving member for driving the lead screw to rotate is provided on the moving arm.

[0009] By adopting the above technical solution, the lead screw is driven to rotate by the drive component. At this time, the sliding seat connected to the lead screw threadedly drives the grinding wheel to move along the sliding hole towards the roller through the sliding shaft until the worn side wall of the grinding wheel abuts against the roller. At this time, the control host receives the electrical signal sent by the second contact, which reduces the adverse impact on the service life of the grinding wheel and improves the resource utilization rate.

[0010] Optionally, the moving component includes a moving rod that corresponds one-to-one with the moving arm and is fixedly connected to the end of the moving arm away from the roller. The end of the moving rod away from the roller passes through the side wall of the mounting frame and is slidably connected to the side wall of the mounting frame. A first spring is provided between the moving rod and the side wall of the mounting frame. A locking element is provided on the moving rod. A rack is provided on each moving rod. One end of the rack can abut against the end of the moving arm. The mounting frame is provided with a moving element that drives the rack to move the moving arm.

[0011] By adopting the above technical solution, the moving component drives the rack to move closer to the roll and pushes the moving arm to move the moving rod closer to the roll. The first spring deforms until the detection roll abuts against the side wall of the roll. At this time, the locking component fixes the moving rod relative to the mounting frame, which facilitates the fixing of the moving arm. The sliding component drives the grinding wheel to continue moving until it abuts against the side wall of the roll, reducing the adverse impact on the service life of the grinding wheel and improving resource utilization.

[0012] Optionally, the locking component includes a locking block with one end inserted into and slidably connected to the moving rod. The locking block can be fully inserted into the moving rod, and a second spring is provided between the locking block and the moving rod to connect the two. The rack is slidably connected to the moving rod, and an unlocking plate is fixedly connected to the lower side of the rack. The side of the locking block near the roller is inclined away from the roller, and the unlocking plate can contact the inclined surface of the locking block.

[0013] By adopting the above technical solution, when the moving arm moves towards the roll, the locking block is fully inserted into the moving rod under the pressure of the side wall of the mounting frame. At this time, the second spring is compressed. When the moving arm moves to the point where the locking block is disengaged from the side wall of the mounting frame, the second spring recovers its deformation and pushes the locking block away from the moving rod, thereby cooperating with the first spring and fixing the moving rod to the side wall of the mounting frame. When unlocking, the drive rack drives the unlocking plate to move towards the locking block and squeezes the locking block until the locking block is fully inserted into the moving rod. At this time, the first spring recovers its deformation and drives the moving rod to reset the moving arm. This facilitates the replacement of grinding wheels of different fineness to grind the roll and improves work efficiency.

[0014] Optionally, the movable arm has a cavity inside, and the end of the movable arm near the movable rod has a mounting hole adapted to the cavity. A sealing block for sealing the mounting hole is slidably connected to the side wall of the movable arm. The driving component includes a first bevel gear sleeved on the end of the lead screw. A second bevel gear meshes with one side of the first bevel gear, and a first gear is provided on one side of the second bevel gear. The end of the rack near the roller can pass through the mounting hole and mesh with the first gear. A control component for controlling the rotation of the lead screw is provided between the first gear and the second bevel gear. A sealing component for driving the sealing block to move is provided on the movable arm.

[0015] By adopting the above technical solution, when the rack pushes the moving arm to move closer to the roll, the end of the rack abuts against the sealing block. When the moving arm moves to the point where the detection roll abuts against the side wall of the roll, the sealing block is driven to open the mounting hole through the sealing component. At this time, the rack continues to move closer to the roll until the end of the rack enters the cavity and drives the first gear to rotate. At this time, the first gear drives the second bevel gear to rotate through the control component, which in turn drives the first bevel gear and the lead screw to rotate, thereby driving the grinding wheel to continue moving closer to the roll until it abuts against the side wall of the roll. This reduces the adverse impact on the service life of the grinding wheel and improves resource utilization.

[0016] Optionally, the control component includes a ratchet coaxial with and fixedly connected to the second bevel gear. The ratchet is inserted into the shaft of the first gear, and a pawl that meshes with the ratchet is hinged to the inner sidewall of the first gear. When the rack moves toward the roll, the first gear drives the second bevel gear to rotate through the ratchet and the pawl.

[0017] By adopting the above technical solution, when the rack moves towards the roller, the ratchet and pawl fix the first gear and the second bevel gear relative to each other, which facilitates the rotation of the lead screw. When the rack moves away from the roller and drives the moving arm to reset, the ratchet and pawl make the first gear and the second bevel gear rotate relative to each other, reducing the adverse effect of the rotation of the first gear on the relative position of the grinding wheel on the moving arm.

[0018] Optionally, the sealing component includes a sealing rod with one end inserted into the movable rod, a third spring installed between the sealing rod and the movable rod, the side of the sealing rod near the locking block being configured as an inclined surface that slopes away from the roll and away from the locking block and abuts against the locking block, the other end of the sealing rod being inserted into the movable arm and configured as an inclined surface that slopes downward towards the roll, when the sealing block blocks the mounting hole, the inclined surface of the sealing rod near the roll abuts against the lower side of the sealing block.

[0019] By adopting the above technical solution, when the locking block is fully inserted into the moving rod, the end of the sealing rod near the sealing block is located below the sealing block, and the sealing block seals the mounting hole. The third spring is stretched. When the locking block pops out and fixes the moving rod, the third spring returns to its deformation and pulls the sealing rod to move away from the roller until it is separated from the sealing block. At this time, the sealing block slides down and opens the mounting hole, which facilitates the drive rack to enter the cavity and drive the screw to rotate. When the grinding wheel corresponding to this moving arm finishes grinding, the drive rack moves away from the roller until the unlocking plate squeezes the locking block to fully enter the moving rod. At this time, the end of the locking block squeezes the inclined surface of the sealing rod away from the roller and pushes the sealing rod to move closer to the block until the inclined surface of the sealing rod near the roller pushes the sealing block to move upward and seals the mounting hole again, which facilitates the movement of the moving arm again and improves work efficiency.

[0020] Optionally, the moving component includes a second gear located on one side of the mounting bracket, a first motor mounted on one side of the second gear, and a hydraulic cylinder fixedly connected to the side wall of the mounting bracket on the side of the first motor away from the second gear, and all the racks can mesh with the second gear.

[0021] By adopting the above technical solution, when the corresponding moving arm is driven to move, the extension rod of the hydraulic cylinder extends and pushes the second gear to mesh with the corresponding rack through the first motor. At this time, the first motor drives the second gear to rotate and drives the corresponding rack to move, thereby improving work efficiency.

[0022] Optionally, the rotating component includes a rotating roller rotatably connected to the mounting bracket. A second motor is mounted on one end of the rotating roller, and an elastic band corresponding to each of the sliding shafts is sleeved on the rotating roller. The other end of the elastic band is sleeved with the corresponding end of the sliding shaft.

[0023] By adopting the above technical solution, the second motor drives the rotating roller to rotate, thereby driving the grinding wheel to rotate with the rotating roller through the elastic belt and sliding shaft. When the grinding wheel moves, the elastic belt generates elastic deformation, so that the rotating roller and the grinding wheel can always be connected to each other, which facilitates driving the grinding wheel to rotate and improves work efficiency.

[0024] In summary, this application includes at least one of the following beneficial technical effects: The moving component drives the moving arm to move the grinding wheel and the inspection roller closer to the roll until the side wall of the inspection roller abuts against the side wall of the roll. The control host receives the electrical signal from the first contact and stops driving the moving arm to move. The sliding component drives the grinding wheel to move closer to the roll until the control host receives the electrical signal from the second contact. At this time, the worn side wall of the grinding wheel abuts against the roll. The rotating component drives the grinding wheel to rotate, which facilitates grinding the surface of the roll, reduces the adverse effects on the service life of the grinding wheel, and improves resource utilization. When the moving arm moves towards the roll, the locking block is fully inserted into the moving rod under the pressure of the mounting frame side wall. At this time, the second spring is compressed. When the moving arm moves to the point where the locking block is disengaged from the mounting frame side wall, the second spring returns to its original shape and pushes the locking block away from the moving rod, thereby cooperating with the first spring and fixing the moving rod to the mounting frame side wall. When unlocking, the drive rack drives the unlocking plate to move towards the locking block and squeezes the locking block until the locking block is fully inserted into the moving rod. At this time, the first spring returns to its original shape and drives the moving rod to reset the moving arm. This facilitates the replacement of grinding wheels of different fineness to grind the roll and improves work efficiency. When the rack pushes the moving arm to move closer to the roll, the end of the rack abuts against the sealing block. When the moving arm moves to the point where the detection roll abuts against the side wall of the roll, the sealing block is driven to open the mounting hole through the sealing component. At this time, the rack continues to move closer to the roll until the end of the rack enters the cavity and drives the first gear to rotate. At this time, the first gear drives the second bevel gear to rotate through the control component, which in turn drives the first bevel gear and the lead screw to rotate, thereby driving the grinding wheel to continue moving closer to the roll until it abuts against the side wall of the roll. This reduces the adverse impact on the service life of the grinding wheel and improves resource utilization. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the grinding machine according to an embodiment of this application.

[0026] Figure 2 This is a structural schematic diagram illustrating the positional relationship between the mounting frame and the movable arm in an embodiment of this application.

[0027] Figure 3 This is a structural schematic diagram illustrating the positional relationship between the movable arm and the movable rod in an embodiment of this application.

[0028] Figure 4 This is a structural schematic diagram illustrating the positional relationship between the sealing rod and the sealing block in the embodiments of this application.

[0029] Figure 5 This is a structural diagram illustrating the positional relationship between the driving component and the moving component in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Grinding machine body; 2. Mounting bracket; 21. Grinding wheel; 22. Rotating component; 221. Rotating roller; 222. Elastic band; 223. Second motor; 3. Moving arm; 31. Sliding component; 311. Sliding shaft; 312. Sliding seat; 313. Lead screw; 32. Detection roller; 33. Sliding hole; 34. Driving component; 341. First bevel gear; 342. Second bevel gear; 343. First gear; 3431. Fixing hole; 35. Cavity; 3 6. Mounting hole; 37. Sealing groove; 4. Moving component; 41. Moving rod; 411. Connecting hole; 42. First spring; 43. Rack; 44. Moving part; 441. Second gear; 442. First motor; 443. Hydraulic cylinder; 45. Locking part; 451. Locking block; 452. Second spring; 46. Unlocking plate; 5. Sealing block; 51. Sealing part; 511. Sealing rod; 512. Third spring; 6. Control part; 61. Ratchet; 62. Pawl. Detailed Implementation

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] This application discloses a grinding machine. (Refer to...) Figure 1 and Figure 2 A grinding machine includes a grinding machine body 1 and a mounting frame 2 slidably connected to the upper side of the grinding machine body 1 along its length. A roller is mounted on the grinding machine body 1 and driven to rotate by the grinding machine body 1. The mounting frame 2 has an opening facing the roller, and the mounting frame 2 is provided with a plurality of vertical grinding wheels 21 arranged sequentially along the length of the roller and having different fineness. In this embodiment, three grinding wheels are used.

[0033] Reference Figure 2 and Figure 3The mounting frame 2 has horizontal moving arms 3 corresponding to the grinding wheels 21 and facing the rollers. The grinding wheels 21 are located on the same side of the corresponding moving arms 3 and are slidably and rotatably connected to the corresponding moving arms 3. The moving arms 3 have sliding parts 31 that drive the grinding wheels 21 to move closer to the rollers. The mounting frame 2 also has rotating parts 22 located on the upper side of the moving arms 3 and driving the grinding wheels 21 to rotate. The end of each moving arm 3 near the roller is rotatably connected to a detection roller 32. The detection roller 32 is equipped with a first contact point (not shown in the figure). The mounting frame 2 also has a moving assembly 4 that drives the moving arms 3 to move closer to the rollers. Each grinding wheel 21 has a second contact point (not shown in the figure) that does not contact the rollers. Both the first and second contacts are wirelessly connected to a control host (not shown in the figure). The moving assembly 4 and the sliding parts 31 are also wirelessly connected to the control host.

[0034] The moving component 4 drives the moving arm 3 to move the grinding wheel 21 and the detection roller 32 toward the direction of the roll until the side wall of the detection roller 32 abuts against the side wall of the roll. The control host receives the electrical signal of the first contact and stops driving the moving arm 3 to move. The sliding component 31 drives the grinding wheel 21 to move toward the direction of the roll until the control host receives the electrical signal of the second contact. At this time, the worn side wall of the grinding wheel 21 abuts against the roll. The rotating component 22 drives the grinding wheel 21 to rotate, which facilitates grinding the surface of the roll.

[0035] Reference Figure 3 The sliding member 31 includes a horizontal sliding shaft 311, one end of which passes through the corresponding shaft of the grinding wheel 21 and is fixedly connected to the grinding wheel 21. The other end of the sliding shaft 311 passes through the corresponding moving arm 3 and moves along the length of the moving arm 3 towards the roller. The moving arm 3 has a sliding hole 33 adapted to the movement trajectory of the sliding shaft 311, and a sliding seat 312 inserted into the sliding hole 33 is provided. The sliding shaft 311 passes through the upper end of the sliding seat 312 and is rotatably connected to the sliding seat 312. The second contact point is installed on the side of the sliding seat 312 away from the roller and close to the sliding shaft 311. The lower end of the sliding seat 312 is threaded with a lead screw 313 facing the roller and rotatably connected to the side wall of the moving arm 3, and the moving arm 3 is provided with a driving member 34 for driving the lead screw 313 to rotate.

[0036] Reference Figure 2The rotating component 22 includes a rotating roller 221 located at the upper end inside the mounting frame 2 and arranged along the length of the grinding machine body 1. The rotating roller 221 is horizontal and rotatably connected to the side wall of the mounting frame 2. An elastic band 222, corresponding to the grinding wheel 21 and capable of elastic deformation, is sleeved on the rotating roller 221. The end of the elastic band 222 away from the rotating roller 221 is sleeved on the end of the corresponding sliding shaft 311 away from the grinding wheel 21. A second motor 223 is fixedly connected to one side outside the mounting frame 2. The output shaft of the second motor 223 passes through the side wall of the mounting frame 2 and is fixedly connected to the end of the rotating roller 221.

[0037] Driven by the drive component 34, the lead screw 313 rotates. At this time, the sliding seat 312, which is threadedly connected to the lead screw 313, drives the grinding wheel 21 to move along the sliding hole 33 towards the roller through the sliding shaft 311 until the worn side wall of the grinding wheel 21 abuts against the roller. At this time, the control host receives the electrical signal sent by the second contact, and the second motor 223 drives the rotating roller 221 to rotate. Thus, the grinding wheel 21 is driven to rotate with the rotating roller 221 through the elastic band 222 and the sliding shaft 311. When the grinding wheel 21 moves, the elastic band 222 generates elastic deformation, so that the rotating roller 221 and the grinding wheel 21 can always be connected to each other, which facilitates driving the grinding wheel 21 to rotate.

[0038] Reference Figure 2 and Figure 3 The moving assembly 4 includes a horizontal moving rod 41 fixedly connected to the end of the moving arm 3 away from the roll and facing the roll. The end of the moving rod 41 away from the moving arm 3 passes through the side wall of the mounting frame 2 and is slidably connected to the side wall of the mounting frame 2. A first spring 42 is sleeved on the end of the moving rod 41 passing through the side wall of the mounting frame 2. One end of the first spring 42 is fixedly connected to the outer side wall of the mounting frame 2, and the other end is fixedly connected to the end of the moving rod 41. (Refer to...) Figure 3 , Figure 4 and Figure 5 A rack 43 parallel to the upper side of the moving rod 41 near the roll is provided. The end of the rack 43 near the roll can abut against the end of the moving arm 3 away from the roll. The mounting frame 2 is provided with a moving part 44 that drives the rack 43 to move. A locking part 45 is provided on the moving rod 41. When the moving arm 3 moves to the point where the detection roll 32 abuts against the side wall of the roll, the locking part 45 fixes the relative position of the moving rod 41 on the mounting frame 2.

[0039] Reference Figure 3 and Figure 5The movable component 44 includes a vertical second gear 441 located on the upper side of the rack 43. The rack 43 can mesh with the second gear 441, and a first motor 442 is mounted on one side of the second gear 441. A horizontal hydraulic cylinder 443 is provided on the side of the first motor 442 away from the second gear 441 and facing the first motor 442. The telescopic rod of the hydraulic cylinder 443 is fixedly connected to the first motor 442, and the end of the hydraulic cylinder 443 away from the telescopic rod passes through the side wall of the mounting frame 2 and is fixedly connected to the mounting frame 2.

[0040] Reference Figure 3 , Figure 4 and Figure 5 The locking component 45 includes two locking blocks 451 located in the mounting bracket 2 and symmetrically arranged on both sides of the moving rod 41. The moving rod 41 has connecting holes 411 adapted to the locking blocks 451. The sides of the locking blocks 451 that are close to each other are inserted into the connecting holes 411 and slidably connected to the moving rod 41, allowing the locking blocks 451 to be completely located in the connecting holes 411. The area of ​​the side of the locking blocks 451 that is close to each other is larger than the cross-sectional area of ​​the connecting holes 411, and a second spring 452 connecting the two is fixedly connected to the side of the locking blocks 451 that is close to each other. When the detection roller 32 abuts against the side wall of the roll, the side of the locking blocks 451 that is far from each other is located outside the moving rod 41, and the side of the locking blocks 451 that is far from the roll abuts against the side of the mounting bracket 2 that is far from the roll. At this time, the first spring 42 is compressed.

[0041] Two vertically and symmetrically arranged unlocking plates 46 are fixedly connected to the lower side of the rack 43 away from the roll. The locking blocks 451 are all set with inclined surfaces that are inclined in a direction away from each other and away from the roll on the side closest to the roll. The unlocking plates 46 correspond one-to-one with the locking blocks 451, and the unlocking plates 46 can abut against the inclined surfaces on the locking blocks 451.

[0042] When the corresponding moving arm 3 is driven to move, the telescopic rod of the hydraulic cylinder 443 extends and pushes the second gear 441 to mesh with the corresponding rack 43 through the first motor 442. At this time, the first motor 442 drives the second gear 441 to rotate and drives the corresponding rack 43 to move closer to the roll, and pushes the moving arm 3 to move the moving rod 41 closer to the roll. The first spring 42 deforms, and the locking block 451 is completely inserted into the moving rod 41 under the pressure of the side wall of the mounting frame 2. At this time, the second spring 452 is compressed until the detection roller 32 abuts against the side wall of the roll. At this time, the second spring 452 recovers its deformation and pushes the locking block 451 to move away from the moving rod 41, thereby cooperating with the first spring 42 and fixing the moving rod 41 on the side wall of the mounting frame 2. The driving component 34 and the lead screw 313 drive the sliding seat 312 and the sliding shaft 311 to drive the grinding wheel 21 to continue moving until it abuts against the side wall of the roll, which facilitates the grinding of the roll surface.

[0043] When unlocking, the drive rack 43 drives the unlocking plate 46 to move closer to the locking block 451 and squeeze the locking block 451 until the locking block 451 is fully inserted into the moving rod 41. At this time, the first spring 42 returns to its original shape and drives the moving rod 41 to move the moving arm 3 to reset, which is convenient for changing the grinding wheel 21 of different fineness to grind the roll.

[0044] Reference Figure 3 and Figure 5 The movable arm 3 has a cavity 35. The end of the lead screw 313 away from the roller is inserted into the cavity 35. The end of the movable arm 3 away from the roller has a mounting hole 36 that is compatible with the rack 43 and communicates with the cavity 35. The end of the rack 43 near the roller can enter the cavity 35. The end of the movable arm 3 near the moving rod 41 is inserted into and slidably connected to a blocking block 5 that blocks the mounting hole 36. The side wall of the movable arm 3 has a blocking groove 37 that communicates with the mounting hole 36. The moving rod 41 has a blocking component 51 that drives the blocking block 5 to move.

[0045] Reference Figure 3 , Figure 4 and Figure 5 The drive component 34 includes a first bevel gear 341 that is sleeved and fixedly connected to one end of the lead screw 313 inserted into the cavity 35. A second bevel gear 342 that is rotatably connected to the inner wall of the moving arm 3 is meshed on one side of the first bevel gear 341. A first gear 343 is provided on the side of the second bevel gear 342 away from the lead screw 313. When the end of the rack 43 near the roller enters the cavity 35, it can mesh with the first gear 343. A control component 6 connecting the second bevel gear 342 and the first gear 343 is provided between them.

[0046] Reference Figure 5 The control component 6 includes a ratchet 61 located on the side of the second bevel gear 342 near the first gear 343, coaxial with and fixedly connected to the second bevel gear 342. A fixing hole 3431 is provided at the axis of the first gear 343, and the ratchet 61 is inserted into the fixing hole 3431 and coaxial with the first gear 343. Two opposing pawls 62 are hinged to the inner wall of the first gear 343 and mesh with the ratchet 61. When the rack 43 moves toward the roller, the second bevel gear 342 is fixed relative to the first gear 343 through the ratchet 61 and the pawls 62.

[0047] When the rack 43 pushes the moving arm 3 to move closer to the roll, the end of the rack 43 abuts against the sealing block 5. When the moving arm 3 moves to the point where the detection roll 32 abuts against the side wall of the roll, the sealing block 5 is driven by the sealing member 51 to open the mounting hole 36. At this time, the rack 43 continues to move closer to the roll until the end of the rack 43 enters the cavity 35 and drives the first gear 343 to rotate. At this time, the ratchet 61 and the pawl 62 fix the first gear 343 and the second bevel gear 342 relative to each other. The first gear 343 drives the second bevel gear 342 to rotate and drives the first bevel gear 341 and the lead screw 313 to rotate, thereby driving the grinding wheel 21 to continue to move closer to the roll until it abuts against the side wall of the roll.

[0048] When the rack 43 moves away from the roller and drives the moving arm 3 to reset, the ratchet 61 and pawl 62 cause the first gear 343 and the second bevel gear 342 to rotate relative to each other, reducing the adverse effect of the rotation of the first gear 343 on the relative position of the grinding wheel 21 on the moving arm 3.

[0049] Reference Figure 4 and Figure 5 The sealing component 51 includes a sealing rod 511, one end of which is inserted into the moving rod 41 and located on the side of the locking block 451 close to each other. The two sides of the sealing rod 511 near the locking block 451 are set as inclined surfaces that are away from the roll and move closer to each other. A third spring 512 is fixedly connected between the end of the sealing rod 511 near the locking block 451 and the inner wall of the moving rod 41. The other end of the sealing rod 511 is inserted into the sealing groove 37 and is set as an inclined surface that is close to the roll and slopes downward. The moving rod 41 and the moving arm 3 are both slidably connected to the sealing rod 511. When the sealing block 5 seals the mounting hole 36, the end of the sealing rod 511 near the roll is located on the lower side of the sealing block 5 and abuts against the lower side wall of the sealing block 5.

[0050] When the locking block 451 is fully inserted into the moving rod 41, the end of the sealing rod 511 near the sealing block 5 is located below the sealing block 5, and the sealing block 5 seals the mounting hole 36. The third spring 512 is stretched. When the locking block 451 pops out and fixes the moving rod 41, the third spring 512 returns to its original deformation and pulls the sealing rod 511 away from the roll until it disengages from the sealing block 5. At this time, the sealing block 5 slides downward and opens the mounting hole 36, making it easier for the drive rack 43 to enter the cavity 35. The drive screw 313 rotates, and when the grinding wheel 21 corresponding to this moving arm 3 finishes grinding, the drive rack 43 moves away from the roller until the unlocking plate 46 presses the locking block 451 into the moving rod 41 completely. At this time, the end of the locking block 451 presses the inclined surface of the sealing rod 511 away from the roller and pushes the sealing rod 511 to move closer to the sealing block 5 until the sealing rod 511 pushes the sealing block 5 upward and seals the mounting hole 36 again.

[0051] The implementation principle of a grinding machine according to an embodiment of this application is as follows: When the rack 43 pushes the moving arm 3 to move closer to the roll, the end of the rack 43 abuts against the sealing block 5. When the moving arm 3 moves to the point where the detection roll 32 abuts against the side wall of the roll, the locking block 451 pops out and fixes the moving rod 41. The third spring 512 restores its deformation and pulls the sealing rod 511 to move away from the roll until it disengages from the sealing block 5. At this time, the sealing block 5 slides down and opens the mounting hole 36, continuing to drive the rack 43 to move closer to the roll until the end of the rack 43 enters the cavity 35 and drives the first gear 343 to rotate. At this time, the first gear 343 drives the second bevel gear 342 through the ratchet 61 and the pawl 62, which in turn drives the first bevel gear 341 and the lead screw 313 to rotate, thereby driving the grinding wheel 21 to continue to move closer to the roll until it abuts against the side wall of the roll.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grinding machine, comprising a mounting frame (2) and grinding wheels (21) of different fineness arranged sequentially along the length of a roll, characterized in that: The mounting frame (2) is provided with a movable arm (3) corresponding to each grinding wheel (21). Each grinding wheel (21) is slidably and rotatably connected to the end of the corresponding movable arm (3). The mounting frame (2) is provided with a movable component (4) for driving the movable arm (3) to move. Each movable arm (3) is provided with a sliding component (31) for driving the grinding wheel (21) to move closer to the roller. The mounting frame (2) is provided with a rotating component (22) for driving the grinding wheel (21) to rotate. A detection roller (32) is rotatably connected to one end of the movable arm (3) near the roller. A first contact is installed on the detection roller (32). A second contact is installed inside each grinding wheel (21). The first contact and the second contact are wirelessly connected to a control host. The movable component (4) is wirelessly connected to the control host. A cavity (35) is opened inside the movable arm (3). A cavity (35) is opened at one end of the movable arm (3) near the moving rod (41). The cavity (35) has a corresponding mounting hole (36), and a sealing block (5) for sealing the mounting hole (36) is slidably connected to the side wall of the moving arm (3). The moving arm (3) is provided with a sealing member (51) for driving the sealing block (5) to move. The sealing member (51) includes a sealing rod (511) with one end inserted into the moving rod (41). A third spring (512) is installed between the sealing rod (511) and the moving rod (41). 511) The side near the locking block (451) is provided with an inclined surface that is inclined away from the roll and away from the locking block (451) and abuts against the locking block (451). The other end of the sealing rod (511) is inserted into the moving arm (3) and is provided with an inclined surface that is inclined downward towards the roll. When the sealing block (5) blocks the mounting hole (36), the inclined surface of the sealing rod (511) near the roll abuts against the lower side of the sealing block (5).

2. A grinding machine according to claim 1, characterized in that: The sliding member (31) includes a sliding shaft (311) with one end passing through the grinding wheel (21) and fixedly connected to the grinding wheel (21). A sliding seat (312) is inserted into and slidably connected to the moving arm (3). The sliding shaft (311) passes through the sliding seat (312) and the moving arm (3) and is rotatably connected to the sliding seat (312). The second contact is installed on the side of the sliding seat (312) away from the roller and close to the sliding shaft (311). The moving arm (3) is provided with a sliding hole (33) adapted to the sliding seat (312). A lead screw (313) adapted to the moving trajectory of the sliding seat (312) is threaded through and threaded to the lower end of the sliding seat (312). The lead screw (313) is rotatably connected to the moving arm (3). The moving arm (3) is provided with a driving member (34) for driving the lead screw (313) to rotate.

3. A grinding machine according to claim 2, characterized in that: The moving component (4) includes a moving rod (41) that corresponds one-to-one with the moving arm (3) and is fixedly connected to the end of the moving arm (3) away from the roller. The end of the moving rod (41) away from the roller passes through the side wall of the mounting frame (2) and is slidably connected to the side wall of the mounting frame (2). A first spring (42) is provided between the moving rod (41) and the side wall of the mounting frame (2). A locking member (45) is provided on the moving rod (41). A rack (43) is provided on the moving rod (41). One end of the rack (43) can abut against the end of the moving arm (3). A moving member (44) is provided on the mounting frame (2) to drive the rack (43) to move the moving arm (3).

4. A grinding machine according to claim 3, characterized in that: The locking member (45) includes a locking block (451) with one end inserted into the moving rod (41) and slidably connected to the moving rod (41). The locking block (451) can be fully inserted into the moving rod (41), and a second spring (452) is provided between the locking block (451) and the moving rod (41) to connect the two. The rack (43) is slidably connected to the moving rod (41), and an unlocking plate (46) is fixedly connected to the lower side of the rack (43). The side of the locking block (451) near the roll is inclined away from the roll, and the unlocking plate (46) can contact the inclined surface of the locking block (451).

5. A grinding machine according to claim 4, characterized in that: The drive unit (34) includes a first bevel gear (341) sleeved on the end of the lead screw (313), a second bevel gear (342) meshing on one side of the first bevel gear (341), a first gear (343) provided on one side of the second bevel gear (342), and a rack (43) near the roller can pass through the mounting hole (36) and mesh with the first gear (343). A control unit (6) for controlling the rotation of the lead screw (313) is provided between the first gear (343) and the second bevel gear (342).

6. A grinding machine according to claim 5, characterized in that: The control component (6) includes a ratchet (61) coaxial with and fixedly connected to the second bevel gear (342). The ratchet (61) is inserted into the shaft of the first gear (343). A pawl (62) that meshes with the ratchet (61) is hinged on the inner side wall of the first gear (343). When the rack (43) moves toward the roll, the first gear (343) drives the second bevel gear (342) to rotate through the ratchet (61) and the pawl (62).

7. A grinding machine according to claim 3, characterized in that: The moving part (44) includes a second gear (441) located on one side of the mounting bracket (2), a first motor (442) is mounted on one side of the second gear (441), and a hydraulic cylinder (443) fixedly connected to the side wall of the mounting bracket (2) is provided on the side of the first motor (442) away from the second gear (441). All the racks (43) can mesh with the second gear (441).

8. A grinding machine according to claim 2, characterized in that: The rotating component (22) includes a rotating roller (221) rotatably connected to the mounting frame (2). A second motor (223) is installed at one end of the rotating roller (221). An elastic band (222) corresponding to the sliding shaft (311) is sleeved on the rotating roller (221). The other end of the elastic band (222) is sleeved with the end of the corresponding sliding shaft (311).

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