A hot-rolled bar surface burr removing apparatus

Abstract

The application relates to a hot-rolled rod surface burr removing device and relates to the technical field of burr removing, which comprises a base, a cleaning mechanism for cleaning burrs on two end faces of the hot-rolled rod is arranged on the base, the upper side of the base is in an inclined shape and is provided with a support mechanism for providing a moving track for the rod, a conveying mechanism for providing moving power for the rod is further arranged on the base, the inclined structure of the inclined arrangement of the base and the matching of the inclined angle of the advancing plate and the base is adopted, the rod is always in close contact with the advancing block and the rubber wheel under the action of gravity, the problem that the rod is easily affected by the inertia of the thrust in the traditional horizontal conveying process and deviates from the forward rolling and offset is solved, the rod is driven to roll and advance in the conveying process of the device, when the end of the rod enters the cleaning mechanism and is in contact with the rotating steel wire roller, the end face of the rod is in a dynamic rotating state, the burr removing operation quality is improved, and the product rework rate is reduced.

Description

Technical Field

[0001] This application relates to the field of deburring technology, and in particular to a device for removing burrs from the surface of hot-rolled bars. Background Technology

[0002] After hot-rolled bars undergo rolling and length-cutting processes, the sheared ends of the bars produce numerous burrs, flashes, and sharp edges resulting from plastic deformation. Simultaneously, oxide scale and fine metal fragments easily adhere to the cut surfaces. These shearing burrs are hard and unevenly distributed. If not thoroughly removed, they not only affect the accuracy of subsequent finishing, assembly, and welding processes, but also easily cause personnel scratches, equipment wear, and stress concentration, reducing the overall structural strength of the bar. Therefore, deburring of both ends of the bar is necessary.

[0003] For example, Chinese patent CN206952697U discloses a fully automatic double-head steel brush deburring machine for headrest tubes. The existing technology uses a sprocket to drive the headrest tube to move, and the steel brushes on both sides remove the burrs at both ends of the headrest tube during the movement. This allows multiple headrest tubes to be deburred at the same time, improving the efficiency of headrest tube deburring, enabling mass production, and reducing labor costs.

[0004] However, the existing equipment adopts a horizontal conveying layout. Due to the inertia of the conveying thrust and the vibration of the equipment chain, the bar is very easy to detach from the conveying push structure and slide relative to it. This can lead to situations such as the bar rolling forward on its own, conveying misalignment, jamming, and leakage, making it impossible to guarantee uniform, directional, and stable conveying of the bar. Furthermore, during the cleaning process, the end face of the bar remains stationary. Due to the uneven distribution and varied burr shapes of the hot-rolled bar end face, the stationary bar end face cannot fully contact the brush roller in all directions, resulting in a large number of cleaning blind spots and positional errors. This easily leads to local burr residue and incomplete cleaning, resulting in a low product processing qualification rate, a large amount of subsequent rework, and increased product processing costs. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a burr removal device for hot-rolled bars, comprising a base and a cleaning mechanism for cleaning burrs on both ends of the hot-rolled bar.

[0006] The upper side of the base is inclined and is equipped with a support mechanism that provides a moving trajectory for the bar. The base is also equipped with a conveying mechanism that provides the moving power for the bar.

[0007] The support mechanism includes a set of forward plates that are tilted at the same angle to the upper side of the base and are used to place the rods.

[0008] The conveying mechanism includes two sets of forward blocks respectively disposed on one side of each forward plate, and also includes a drive assembly that drives each set of forward blocks to move around the same trajectory. Each forward block is provided with a rubber wheel that can drive the contact bar to rotate.

[0009] The conveying mechanism also includes a transmission assembly, which includes a rack mounted on the side of one of the forward plates, and gear sets that mesh with the rack and drive the rubber wheel to rotate on the side of the forward blocks on the same side. A transmission shaft is coaxially mounted between each pair of aligned forward blocks in the two sets.

[0010] Preferably, the drive assembly includes two transverse shafts, each shaft having a mounting base rotatably mounted at both ends and connected to the upper side of the base. Each shaft has a sprocket mounted inside each set of rubber wheels, and a chain is provided on the two sprockets on the same side.

[0011] Preferably, the outer side of the chain is connected to all forward blocks on the same side.

[0012] Preferably, each forward block has a through groove on both sides, the rubber wheel is rotatably installed in the through groove via a rotating shaft and the wheel body extends to the outside, the gear set includes two gears, gear one and gear two, gear one is connected to the rotating shaft of the rubber wheel, and gear two is rotatably installed on the side of the forward block and meshes with gear one.

[0013] Preferably, a U-shaped plate is provided near the lower end of the forward plate, and a baffle is installed on the upper side of the base near the upper end of the forward plate. The upper end of the forward plate is bent downward and a strip plate with the same slope is provided between the end and the baffle. The area between the strip plate and the baffle is the collection station.

[0014] Preferably, a parallel return plate is provided on the upper side of the base below the forward plate. The upper end of the return plate is bent upward and connected to the baffle. The lower end of the return plate is curved and extends to the upper side of the forward plate. The curved part of the return plate is coaxial with the sprocket on the same side. The lower end of the forward plate is curved downward and coaxial with the sprocket on the same side.

[0015] Preferably, the strip plate is hinged to the baffle near its edge, and the U-shaped plate is hinged to the return plate near its side. The support mechanism also includes an electric cylinder assembly for driving the U-shaped plate and the strip plate to deflect.

[0016] Preferably, the electric cylinder assembly consists of an electric cylinder two located below the strip plate and an electric cylinder one located on one side of the U-shaped plate. The lower end of the electric cylinder two is hinged to the side of the baffle, and the end of the telescopic arm of the electric cylinder two is hinged to the lower side of the strip plate. The lower end of the electric cylinder one is hinged to a U-shaped frame with two legs connected to the return plate, and the end of the telescopic arm of the electric cylinder one is hinged to the side of the U-shaped plate on the same side.

[0017] Preferably, the cleaning mechanism includes two housings located on the upper side of the base and on the outer side of each forward plate. The housings have openings on the front side near the rack and on both sides for the rod end to enter and exit. A negative pressure pipe connected to the input end of an external vacuum cleaner is installed on the rear side of the housing. The housings also contain working components.

[0018] Preferably, the working component includes a wire roller rotatably mounted inside the housing, and a second motor with its drive end connected to one end of the wire roller is mounted on the side of the housing.

[0019] In summary, this application includes at least one of the following beneficial technical effects: The inclined structure, which features an inclined base and an inclined angle matching the inclination of the forward plate to the base, ensures that the bar remains in close contact with the forward block and rubber wheel under its own weight as the forward block pushes the bar to move from low to high along the inclined forward plate. This solves the problem of the bar easily being affected by the thrust inertia and rolling forward during traditional horizontal conveying. At the same time, the contact between the rubber wheel and the bar will not cause any damage to it.

[0020] During the equipment conveying process, as the forward block moves forward, gear two meshes with the fixed rack and rotates. Through gear one, it drives the rubber wheel to rotate at high speed. The rotating rubber wheel generates friction with the surface of the bar, driving the bar to roll forward. When the end of the bar enters the cleaning mechanism and contacts the rotating wire roller, the end face of the bar is in a dynamic rotation state. This eliminates the cleaning blind spots and positional deviation problems of traditional fixed cleaning, and achieves 360-degree all-round burr cleaning of the end face of the bar without dead angles, improving the quality of deburring operations and reducing the product rework rate. Attached Figure Description

[0021] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a structural diagram of this application.

[0023] Figure 2 This is a schematic diagram of the working state structure of this application.

[0024] Figure 3 This is a schematic diagram of the conveying mechanism structure of this application.

[0025] Figure 4 This is a schematic diagram of the rubber wheel assembly structure of this application.

[0026] Figure 5 This is a schematic diagram of the support structure of this application.

[0027] Figure 6 This is a side view of the support structure of this application.

[0028] Figure 7 This is a schematic diagram of the rework status structure of this application.

[0029] Figure 8 This is a schematic diagram of the guide rail assembly structure of this application.

[0030] Figure 9 This is a schematic diagram of the cleanup state structure of this application.

[0031] Figure 10 This is a schematic diagram of the cleanup organization structure in this application.

[0032] Figure 11 This is a schematic diagram of the transmission component structure of this application.

[0033] Figure 12 This is a schematic diagram of the limiting block structure of this application.

[0034] In the diagram: 1. Base; 2. Conveying mechanism; 21. Mounting seat; 22. Shaft; 23. Sprocket; 24. Chain; 25. Motor 1; 26. Forward block; 27. Rubber wheel; 28. Gear; 29. ​​Rack; 210. Strip seat; 211. Drive shaft; 212. Reinforcing plate; 213. Rotating seat; 3. Support mechanism; 31. Forward plate; 32. U-shaped plate; 33. U-shaped frame; 34. Return plate; 35. Electric cylinder 2; 36. Baffle; 37. Strip plate; 38. Guide rail; 39. Slide groove; 310. Slider; 311. Fixed frame 1; 312. Fixed frame 2; 313. Electric cylinder 1; 314. Limiting rod; 4. Cleaning mechanism; 41. Outer shell; 42. Wire roller; 43. Motor 2; 44. Negative pressure pipe; 45. Through port; 5. Limiting block. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-12 The embodiments of this application will be described in detail.

[0036] This application discloses a burr removal device for hot-rolled bars. During the process of the forward block pushing the bar to move from low to high along the inclined forward plate, the bar is always in close contact with the forward block and rubber wheel under its own gravity. This solves the problem that the bar is easily affected by the thrust inertia and rolls forward during the traditional horizontal conveying process. The device allows the bar to roll forward during the conveying process. When the end of the bar enters the cleaning mechanism and contacts the rotating wire roller, the end face of the bar is in a dynamic rotation state. This eliminates the cleaning blind spots and positional deviation problems of traditional fixed cleaning, and realizes 360-degree all-round burr removal without dead angles on the end face of the bar, improving the quality of deburring operation and reducing the product rework rate.

[0037] First embodiment, such as Figures 1-5As shown, the equipment includes a base 1, the upper side of which is inclined and a support mechanism 3 is provided. The support mechanism 3 includes a set of forward plates 31 with the same inclination angle as the upper side of the base 1. A conveying mechanism 2 is provided on the base 1. The conveying mechanism 2 includes two sets of forward blocks 26 respectively corresponding to one side of each forward plate 31. It also includes a drive assembly that drives each set of forward blocks 26 to move along the same trajectory. When the hot-rolled bar is placed on the forward plate 31, during the process of the forward blocks 26 moving along the preset trajectory, the upper forward block 26 pushes the bar to move from low to high along the trajectory of the forward plate 31. At the same time, under the action of gravity, the bar always keeps in contact with the forward block 26 that pushes it to move, so as to prevent the bar from detaching from the forward block 26 and rolling forward.

[0038] like Figure 2 and Figure 3 As shown, each forward block 26 has a through groove, and a rubber wheel 27 extending to the outside is rotatably mounted in the through groove via a rotating shaft. The conveying mechanism 2 also includes a transmission component that can drive each rubber wheel to rotate. The rubber wheel 27 is used to contact the rod in the forward block 26. On the one hand, the rubber wheel 27 made of rubber avoids damage to the rod when in contact. On the other hand, the friction between the rotating rubber wheel 27 and the rod drives the rod to roll forward.

[0039] like Figure 2 and Figure 3 As shown, the power assembly includes a rack 29 mounted on the side of one of the forward plates 31. Gear sets are mounted on the sides of the forward blocks 26 on the same side as the rack 29. Each gear set includes two gears 28, namely gear one and gear two. Gear one is fixedly connected to the shaft of the rubber wheel 27. Gear two is rotatably mounted on the side of the forward block 26 and meshes with gear one. During the operation of the equipment to push the bar, the forward block 26 moves continuously until gear two contacts and meshes with the rack 29. The fixed rack 29 can drive gear two to rotate. Gear two drives gear one to rotate through meshing transmission, thereby driving the rubber wheel 27 to rotate.

[0040] like Figure 11 As shown, a reinforcing plate 212 is installed between each pair of mutually aligned forward blocks 26 in the two groups. A drive shaft 211 is coaxially fixed between the rotating shafts of the two rubber wheels 27 on the two forward blocks 26. Several rotating seats 213, evenly distributed and fixedly connected to the reinforcing plate 212, are rotatably mounted on the drive shaft 211. In this way, the rubber wheel 27 driven to rotate by the rack 29 and the gear set can drive the other rubber wheel 27 connected to it to rotate through the drive shaft 211, thereby ensuring that the two rubber wheels 27 that push the bar to move rotate at the same speed, ensuring that the rotation amount at both ends of the bar is the same, avoiding conveying misalignment, jamming, leakage and other situations caused by different rotation amounts at both ends of the bar, and improving the stability of the device operation.

[0041] The reinforcing plate 212 connects the two forward blocks 26 to ensure that the displacement of the two forward blocks 26 is consistent. At the same time, the rotating seat 213 supports the transmission shaft 211 to prevent the excessively long transmission shaft 211 from deforming and affecting the transmission.

[0042] like Figure 8 As shown, a guide rail 38 is installed on the side of the forward plate 31 near the forward block 26. The side of the guide rail 38 has a slide groove 39 with a flared end. Each forward block 26 has a slider 310 that matches the slide groove 39. Before the gear 2 of the upper forward block 26 contacts the rack 29, the slider 310 on the forward block 26 will slide into the slide groove 39. The cooperation structure between the slide groove 39 and the slider 310 forms an upper and lower limit on the forward block 26, ensuring that the forward block 26 can only move forward in one direction. This avoids the problem that the vibration of the chain 24 causes the forward block 26 to float slightly up and down, resulting in the failure of the gear 2 and the rack 29 to mesh. The flared structure at the end of the slide groove 39 can facilitate the slider 310 to slide in and dock quickly.

[0043] The length of the guide rail 38 is greater than the length of the rack 29, which ensures that the forward block 26 maintains a directional movement state throughout the entire process of passing through the rack 29, thus achieving stable meshing transmission.

[0044] like Figures 1-3 As shown, the drive assembly includes two horizontally arranged shafts 22. Each shaft 22 has a mounting base 21 rotatably mounted at both ends, connected to the upper side of the base 1. A sprocket 23 is fixedly mounted on each shaft 22, located inside each set of rubber wheels 27. A chain 24 is sleeved between the two sprockets 23 on the same side. The outer side of the chain 24 is fixedly connected to all the forward blocks 26 on the same side. A motor 25 is mounted on the side of one of the mounting bases 21, and the drive end of the motor 25 is fixedly connected to the end of the shaft 22 on the same side. In operation, the motor 25 drives the shaft 22 to rotate. The rotating shaft 22 drives the connected sprockets 23 to rotate synchronously, which in turn drives the remaining sprockets 23 through the chain 24, causing the two chains 24 to rotate synchronously in a cycle. This, in turn, drives each set of forward blocks 26 to move cyclically along the trajectory of the chain 24, with the upper forward block 26 always moving from low to high along the forward plate 31.

[0045] like Figure 3 and Figure 5 As shown, two strip seats 210 are rotatably mounted on the two shafts 22. Limiting plates (not shown) are installed on the shafts 22 and on both sides of each strip seat 210. The limiting plates are rotatably connected to the strip seats 210. A set of fixing brackets 311 fixedly connected to the strip seats 210 is installed on the lower side of each forward plate 31. The limiting plates can limit the strip seats 210 to the left and right to prevent the strip seats 210 from shifting laterally on the shafts 22. The stable support of the forward plate 31 is achieved through the cooperation structure between the strip seats 210 and the fixing brackets 311.

[0046] like Figure 5 and Figure 6 As shown, a U-shaped plate 32 is installed near the lower end of the forward plate 31. The angled area between the U-shaped plate 32 and the forward plate 31 forms a bar placement station. After the bar is placed in this placement station, the U-shaped plate 32 can intercept and limit the bar, preventing the bar from sliding and rolling down the inclined forward plate 31.

[0047] like Figure 1 and Figure 9 As shown, a cleaning mechanism 4 is installed on the base 1. The cleaning mechanism 4 includes two housings 41 mounted on the upper side of the base 1 and respectively located on one side of each rack 29. The housings 41 have openings 45 on the front and both sides near the rack 29 for the end of the bar to enter and exit. Working components are also arranged inside the housings 41. The ends of the bar moving along the forward plate 31 can enter the housing 41 through the openings 45. The internal working components complete the cleaning of the burrs on the end face of the bar. After cleaning, the bar is removed from the housing 41 through the openings 45.

[0048] like Figure 9 and Figure 10 As shown, a negative pressure pipe 44 is installed on the rear side of the outer casing 41. The negative pressure pipe 44 is connected to the input end of an external vacuum cleaner. The external vacuum cleaner can create a negative pressure environment inside the outer casing 41 and at the port 45. The negative pressure inside the outer casing 41 can promptly remove the burrs and debris that have been cleaned through the negative pressure pipe 44. At the same time, the negative pressure at the port 45 can guide the external airflow into the outer casing 41, preventing the burrs and debris inside the outer casing 41 from drifting into the workshop through the port 45, thus ensuring a clean working environment.

[0049] like Figure 9 and Figure 10 As shown, the working assembly includes a wire roller 42 rotatably mounted inside a housing 41. A second motor 43 is mounted on the side of the housing 41, and the drive end of the second motor 43 is fixedly connected to one end of the wire roller 42. In operation, the second motor 43 drives the wire roller 42 to rotate. When the moving end of the bar contacts the rotating wire roller 42, burrs on the surface of the bar end are brushed away. Simultaneously, with the coordinated action of the rack 29, gear set, and rubber wheel 27, the bar always maintains a rolling forward state. The synchronous rotation of the bar end face eliminates cleaning position deviations, improves deburring effect, and reduces rework.

[0050] like Figure 5 and Figure 6As shown, a baffle 36 is installed on the upper side of the base 1 near the high end of the forward plate 31. The high end of the forward plate 31 is bent downwards, and a strip plate 37 with the same inclination is installed between the bent end and the baffle 36. The area between the strip plate 37 and the baffle 36 constitutes the bar collection station. After the bar is deburred by the cleaning mechanism 4, it continues to move forward until it reaches the high end of the forward plate 31. Then it slides down along the bent section of the forward plate 31 and finally falls into the collection station. The staff only needs to remove the bar in the collection station periodically to complete a single operation.

[0051] A controller is also installed on the upper side of the base 1. The controller is electrically connected to all electrical components inside the equipment and is used to uniformly control the start-up, shutdown and operation of each electrical component and to coordinate their operation.

[0052] like Figure 7 As shown, limit rods 314, which are fixedly connected to the outer shell 41 on the same side, are installed parallel to each other above the forward plate 31 near the opening 45. The limit rods 314 and the forward plate 31 form an upper and lower limit area, and the distance between the limit rods 314 and the forward plate 31 is the same as the diameter of the rod. The length of the limit plate is the same as the length of the outer shell 41. That is, after the end of the rod enters the outer shell 41, the rod also enters the limit area. In other words, when deburring the end of the rod, the rod is limited in the upper and lower dimensions to prevent the rod from being displaced.

[0053] like Figure 12 As shown, both sides of the placement station are provided with limiting blocks 5 that are fixedly connected to the strip seat 210 on the same side. The distance between the two limiting blocks 5 is the length of the bar. When the bar is placed in the placement station and between the two limiting blocks 5, the bar is placed upright on the placement station, and both ends of the bar can contact the wire roller 42 on the same side.

[0054] In summary, the controller starts the motor 25, which drives the shaft 22 to rotate the sprocket 23, which in turn drives the chain 24 to rotate in a cycle. This causes each group of forward blocks 26 to move continuously along the track of the chain 24. The operator places bars of equal length in the placement station in sequence. After the moving forward blocks 26 contact the bars through the rubber wheels 27, they can push the bars to move forward steadily along the inclined track of the forward plate 31. The bar feed can be continuously added in the future, realizing continuous automatic bar feeding operation.

[0055] During the forward movement, the ends of the bar enter the interior of the housing 41 through the opening 45. At the same time, after the forward block 26 moves to the corresponding position, gear two meshes with rack 29 to drive the transmission. Gear one drives rubber wheel 27 to rotate, and then drives another rubber wheel 27 in contact with the bar to rotate through the transmission shaft 211. The rotating rubber wheel 27 provides rolling torque to the bar, keeping the bar in a rolling forward state. The synchronously running motor two 43 drives the wire roller 42 to rotate. The rotating ends of the bar contact the wire roller 42 to achieve burr removal. After cleaning, the bar continues to move forward to the high end of the forward plate 31, slides down the bending section and falls into the collection station, completing a single burr removal operation.

[0056] In the second embodiment of this application, based on the structure of the first embodiment, during actual operation, due to differences in the amount and morphology of burrs on the end faces of the bars, some bar end faces will have a small amount of burr residue, which cannot be completely cleaned in one go. Under the original equipment structure, when the staff finds burr residue on the bars in the collection station, they cannot directly put the bars back into the equipment for secondary cleaning. They need to move the bars to the other side of the equipment and hand them over to the unloading operator for reloading. The operation is cumbersome and the work process is lengthy, which seriously reduces the overall work efficiency.

[0057] Based on this, such as Figure 6 As shown, a parallel-arranged return plate 34 is installed on the upper side of the base 1 and below the forward plate 31. Several evenly distributed fixing brackets 312, fixedly connected to the base 1, are installed on the side of the return plate 34. The upper end of the return plate 34 is bent upwards and fixedly connected to the baffle 36. A strip plate 37 is hinged to the baffle 36 near its edge. When the operator finds that the burrs on the end face of the bar in the collection station are not thoroughly cleaned, the strip plate 37 can be controlled to deflect downwards, and the bar in the collection station will then fall to the upwardly bent section of the return plate 34. Figure 7 As shown, the bar slides down the inclined structure of the return plate 34 until it is received by the moving forward block 26. The forward block 26 can limit and buffer the bar during the movement, reducing the sliding speed of the bar on the return plate 34.

[0058] like Figures 5-7 As shown, the lower end of the return plate 34 has an arc-shaped curved structure and extends to the upper side of the forward plate 31. The arc-shaped curved part of the return plate 34 is coaxially arranged with the sprocket 23 on the same side. The lower end of the forward plate 31 has an arc-shaped downward extending structure and is coaxially arranged with the sprocket 23 on the same side. After the bar slides to the lower part of the curved part of the return plate 34, the forward block 26 can push the bar to move smoothly between the curved parts of the return plate 34 and the forward plate 31 during the upward movement along the track of the chain 24, and finally push the bar to the upper side of the forward plate 31.

[0059] like Figure 5 and Figure 6As shown, the side of the U-shaped plate 32 near the return plate 34 is hinged to the side of the return plate 34. After the forward block 26 pushes the bar onto the forward plate 31, it can drive the U-shaped plate 32 to deflect upward and release the interception limit on the bar through structural cooperation, so that the bar with residual burrs can move along the forward plate 31 again to complete the secondary deburring operation.

[0060] like Figure 5 and Figure 6 As shown, the support mechanism 3 also includes an electric cylinder assembly for driving the U-shaped plate 32 and the strip plate 37 to deflect. The electric cylinder assembly includes an electric cylinder 35 arranged below the strip plate 37 and an electric cylinder 313 arranged on one side of the U-shaped plate 32. The lower end of the electric cylinder 35 is hinged to the side of the baffle 36, and the end of the telescopic arm of the electric cylinder 35 is hinged to the lower side of the strip plate 37. When the electric cylinder 35 retracts, it can pull the strip plate 37 to deflect downward. When the electric cylinder 35 extends, it can push the strip plate 37 to deflect upward. When the electric cylinder 35 extends to its maximum stroke, the strip plate 37 and the bent part of the forward plate 31 maintain the same inclination slope.

[0061] like Figure 5 and Figure 6 As shown, a U-shaped frame 33 with double support legs is hinged to the lower end of the electric cylinder 313. The end of the telescopic arm of the electric cylinder 313 is hinged to the same side of the U-shaped plate 32. When the electric cylinder 313 retracts, it can pull the U-shaped plate 32 to deflect upward, releasing the blockage between the return plate 34 and the forward plate 31. When the electric cylinder 313 extends, it can drive the U-shaped plate 32 to deflect in the opposite direction, restoring the blocking and limiting state.

[0062] A pressure sensor (not shown) is installed on the same side of the U-shaped plate 32. After the U-shaped plate 32 forms an interception limit on the upward bar, the bar can squeeze and adhere to the pressure sensor on the U-shaped plate 32. After the pressure sensor detects the pressure signal, it transmits it to the controller. After receiving the signal, the controller controls the electric cylinder 313 to retract, which drives the U-shaped plate 32 to deflect upward to allow the bar to pass. After the bar passes, the electric cylinder 313 resets and extends, which drives the U-shaped plate 32 to deflect downward to return to its original position, so that the placement station can be used normally in cycles.

[0063] After the bar contacts and is limited by the U-shaped plate 32, the line connecting the pressure sensor and the bar axis is parallel to the forward plate 31, which can ensure that the bar stably squeezes the pressure sensor and ensure accurate signal detection.

[0064] In summary, when staff discovered that the burrs on the end faces of the bars in the collection station were not thoroughly removed, the control cylinder 35 retracted, pulling the strip plate 37 downwards. The bars in the collection station then fell to the upward-bent section of the return plate 34 and slid along its inclined structure until the moving forward block 26 received and buffered them, slowing down the sliding speed. After the bars slid to the lower part of the arc-shaped bend of the return plate 34, the upward-moving forward block 26 pushed the bars smoothly along the coaxial bend of the return plate 34 and the forward plate 31, finally pushing the bars to the upper side of the forward plate 31. After the bars moved upwards, they contacted the U-shaped plate 32 and were stopped, pressing against the pressure sensor. The pressure sensor fed back a signal to the controller, which controlled the control cylinder 313 to retract, causing the U-shaped plate 32 to deflect upwards, releasing the blocking limit to allow the bars to pass through. This allowed the bars to re-enter the equipment's operating trajectory to complete the secondary deburring. Subsequently, the control cylinder 313 automatically reset, and the collection station returned to normal operation.

[0065] This application also discloses a method for using a burr removal device for hot-rolled bar surfaces, including the following steps: S1. Bar placement and feeding: The controller starts the motor 25, which drives the shaft 22 to rotate the sprocket 23, which in turn drives the chain 24 to rotate in a cycle. This drives each group of forward blocks 26 to move continuously along the track of the chain 24. The operator places the bars one by one at the placement station. After the moving forward blocks 26 contact the bars through the rubber wheels 27, they can push the bars to move forward steadily along the inclined track of the forward plate 31. By cyclically feeding the bars, the equipment can achieve continuous automatic feeding operation.

[0066] S2. End Face Burr Removal: The bar is pushed forward by the forward block 26 and the end of the bar enters the housing 41 through the port 45. The controller controls the motor 43 to run and drive the wire roller 42 to rotate. The rotating wire roller 42 can thoroughly brush off the burrs from the moving end of the bar. At the same time, the external vacuum cleaner creates a negative pressure environment inside the housing 41 and at the port 45 through the negative pressure pipe 44. The burrs and debris that are cleaned off can be sucked away in time through the negative pressure pipe 44 to avoid the debris from scattering and polluting the workshop environment. After the burrs are cleaned, the bar continues to move forward and slides down the high-end bending section of the forward plate 31 into the collection station, completing a single cleaning operation.

[0067] S3. Bar Rotation Assisted Cleaning: While the end of the bar enters the housing 41 for burr removal, the forward block 26 moves to the corresponding position, and gear two meshes with the fixed rack 29 for transmission. The rotation of gear two drives gear one to rotate synchronously, which in turn drives rubber wheel 27 to rotate. Then, through the transmission shaft 211, it drives another rubber wheel 27 in contact with the bar to rotate. The rotating rubber wheel 27 rubs against the surface of the bar and provides rolling torque to the bar, so that the bar rotates synchronously during the forward movement. The continuous rotation of the end face of the bar can eliminate the cleaning position deviation, realize all-round burr removal without dead angles on the end face, improve the cleaning quality and reduce the frequency of rework.

[0068] S4. Secondary Deburring of Bars: When the staff finds residual burrs on the end face of the bars in the collection station and the cleaning is not up to standard, the control cylinder 2 35 retracts and pulls the strip plate 37 downward. The bars in the collection station fall directly to the upward bending section of the return plate 34 and slide down along its inclined structure. The moving forward block 26 receives the bars and buffers their sliding speed. After the bars slide to the lower part of the arc bend of the return plate 34, the upward forward block 26 pushes the bars along the coaxial bending part of the return plate 34 and the forward plate 31, and finally pushes the bars to the upper side of the forward plate 31. After the bars rise, they are intercepted by the U-shaped plate 32 and squeeze the pressure sensor. The pressure sensor feeds back a signal to the controller. The controller controls the cylinder 1 313 to retract and drive the U-shaped plate 32 to deflect upward to release the limit. The bars re-enter the equipment's working trajectory to complete the secondary deburring operation. After the operation is completed, the cylinder 1 313 and the cylinder 2 35 automatically reset, and the equipment returns to normal operation.

[0069] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects.

[0070] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment includes only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A burr removal device for hot-rolled bar stock, comprising a base (1), wherein a cleaning mechanism (4) for cleaning burrs on both ends of the hot-rolled bar stock is provided on the base (1), characterized in that: The upper side of the base (1) is inclined and is provided with a support mechanism (3) that provides a moving trajectory for the bar. The base (1) is also provided with a conveying mechanism (2) that provides moving power for the bar. The support mechanism (3) includes a set of forward plates (31) that are inclined at the same angle to the upper side of the base (1) and are used to place the rods. The conveying mechanism (2) includes two sets of forward blocks (26) respectively set on one side of each forward plate (31), and also includes a drive assembly that drives each set of forward blocks (26) to move around the same trajectory. Each forward block (26) is provided with a rubber wheel (27) that can drive the contact rod to rotate. The conveying mechanism (2) also includes a transmission assembly, which includes a rack (29) mounted on the side of one of the forward plates (31), and gear sets that mesh with the rack (29) and drive the rubber wheel (27) to rotate on the side of the forward blocks (26) on the same side. A transmission shaft (211) is coaxially mounted between each pair of aligned forward blocks (26) in the two sets.

2. The burr removal equipment for hot-rolled bar surfaces according to claim 1, characterized in that: The drive assembly includes two transverse shafts (22), each shaft (22) has a mounting seat (21) rotatably mounted at both ends and connected to the upper side of the base (1), and each shaft (22) has a sprocket (23) mounted on the inner side of each set of rubber wheels (27), and a chain (24) is provided on the two sprockets (23) on the same side.

3. The burr removal equipment for hot-rolled bar surfaces according to claim 2, characterized in that: The outer side of the chain (24) is connected to all the forward blocks (26) on the same side.

4. The burr removal equipment for hot-rolled bar surfaces according to claim 3, characterized in that: Each forward block (26) has a through groove on both sides. The rubber wheel (27) is rotatably installed in the through groove through a rotating shaft and the wheel body extends to the outside. The gear set includes two gears (28), namely gear one and gear two. Gear one is connected to the rotating shaft of the rubber wheel (27), and gear two is rotatably installed on the side of the forward block (26) and meshes with gear one.

5. The burr removal equipment for hot-rolled bar surfaces according to claim 4, characterized in that: A U-shaped plate (32) is provided near the lower end of the forward plate (31). A baffle (36) is installed on the upper side of the base (1) near the upper end of the forward plate (31). The upper end of the forward plate (31) is bent downward and a strip plate (37) with the same slope is provided between the end and the baffle (36). The area between the strip plate (37) and the baffle (36) is the collection station.

6. The burr removal equipment for hot-rolled bar surfaces according to claim 5, characterized in that: A parallel return plate (34) is provided on the upper side of the base (1) below the forward plate (31). The upper end of the return plate (34) is bent upward and connected to the baffle (36). The lower end of the return plate (34) is curved and extends to the upper side of the forward plate (31). The curved part of the return plate (34) is coaxial with the sprocket (23) on the same side. The lower end of the forward plate (31) is curved downward and coaxial with the sprocket (23) on the same side.

7. The burr removal equipment for hot-rolled bar surfaces according to claim 6, characterized in that: The strip plate (37) is hinged to the baffle (36) near the edge of the baffle (36), and the U-shaped plate (32) is hinged to the return plate (34) near the side of the return plate (34). The support mechanism (3) also includes a drive U-shaped plate (32) and strip plate (37) deflection electric cylinder assembly.

8. The burr removal equipment for hot-rolled bar surfaces according to claim 7, characterized in that: The electric cylinder assembly consists of an electric cylinder 2 (35) located below the strip plate (37) and an electric cylinder 1 (313) located on one side of the U-shaped plate (32). The lower end of the electric cylinder 2 (35) is hinged to the side of the baffle (36), and the end of the telescopic arm of the electric cylinder 2 (35) is hinged to the lower side of the strip plate (37). The lower end of the electric cylinder 1 (313) is hinged to a U-shaped frame (33) with two legs connected to the return plate (34), and the end of the telescopic arm of the electric cylinder 1 (313) is hinged to the side of the U-shaped plate (32) on the same side.

9. The burr removal equipment for hot-rolled bar surfaces according to claim 8, characterized in that: The cleaning mechanism (4) includes two housings (41) located on the upper side of the base (1) and on the outer side of each forward plate (31). The housings (41) have openings (45) on the front side near the rack (29) and on both sides for the rod end to enter and exit. A negative pressure pipe (44) connected to the input end of an external vacuum cleaner is installed on the rear side of the housings (41). The housings (41) also contain working components.

10. The burr removal equipment for hot-rolled bar surfaces according to claim 9, characterized in that: The working components include a wire roller (42) that is rotatably installed inside the housing (41), and a second motor (43) whose drive end is connected to one end of the wire roller (42) is installed on the side of the housing (41).

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