edger mill
By installing front and rear blocking gates and baffles, as well as a side blocking mechanism in the milling machine, the problems of steel plate damage caused by metal chip splashing and clamping roller jamming are solved, ensuring the normal operation of the production line.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FOSHAN HUACHANG BUILDING MATERIALS CO LTD
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-24
Smart Images
Figure CN122442011A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of milling machine technology. Background Technology
[0002] In the field of new building materials production, edge processing of steel plates is a key preliminary process. Currently, special milling or beveling equipment is commonly used to complete this processing. It mainly includes a conveying mechanism and a milling mechanism. The conveying mechanism transports the steel plate to the milling mechanism, and then the milling cutter in the milling mechanism mills the edge of the steel plate.
[0003] Due to the requirements of the milling process, the clamping rollers need to be positioned close to the milling cutter to clamp the steel plate during milling. However, the high-speed rotating milling cutter generates a large amount of high-temperature, high-speed flying metal chips when cutting the steel plate. These metal chips easily splash onto the contact point between the clamping rollers and the steel plate. Under the pressure of the clamping force, the rigid metal chips can become embedded in the gap between the clamping rollers and the steel plate, causing damage to the steel plate. Furthermore, the continuous accumulation of metal chips can also cause the clamping rollers to jam, thus affecting the operation of the entire production line. Summary of the Invention
[0004] In view of this, the present invention provides a milling machine that can effectively reduce the possibility of metal chips generated during milling splashing onto the contact position between the clamping roller and the steel plate, prevent the steel plate from being damaged by chip compression, and avoid the clamping roller from getting stuck, thus greatly ensuring the normal operation of the production line.
[0005] To achieve the above objectives, the present invention provides the following technical solutions.
[0006] 1. A milling machine for milling the edges of steel plates, comprising a transport mechanism and a milling mechanism. The transport mechanism includes two sets of pressure rollers arranged vertically, which press the steel plate together and move it from back to front. The milling mechanism is located on one side of the transport mechanism, and the steel plate is milled as it passes through the milling mechanism. It also includes a shielding device, which includes a front shielding gate, a rear shielding gate and two baffles. The two baffles are distributed vertically and arranged around the milling mechanism to form a milling area. After the steel plate enters the milling area, the two baffles are respectively attached to the upper and lower surfaces of the steel plate to shield the metal chips generated by milling. The front and rear blocking gates are located in front of and behind the milling area, respectively. When the front end of the steel plate reaches the milling area, the rear blocking gate opens to allow passage. The steel plate passes through completely and then closes. When the front end of the steel plate reaches the front blocking gate, the front blocking gate opens to allow passage. The steel plate passes through completely and then closes.
[0007] By setting up a front blocking gate, a rear blocking gate, and two baffles, the corresponding blocking gate opens when the steel plate reaches the appropriate position. The openings of the front and rear blocking gates only allow the steel plate to pass through, tightly sealing the gap between the steel plate and the gate opening. The two baffles are set around the junction edge of the milling mechanism and the conveying mechanism, respectively fitting against the upper and lower surfaces of the steel plate. When the chips generated during milling are splashed at high speed upwards or downwards along the tangent of the milling cutter, they can be blocked by the upper and lower baffles, effectively reducing the possibility of metal chips splashing onto the contact point between the pressure roller and the steel plate, greatly ensuring the normal operation of the production line.
[0008] 2. Based on technical solution 1, the shielding device also includes a side shielding mechanism. The side shielding mechanism is located on the side of the two baffles. As the steel plate moves forward into the milling area, it gradually fills the gap on the side between the two baffles. The side shielding mechanism blocks the gap on the side between the two baffles that is not filled by the steel plate, so as to prevent metal chips generated during the milling of the steel plate from flying out of the milling area from the gap.
[0009] While the existing shielding gates and baffles effectively block metal chips generated during milling, a significant gap remains between the two baffles when the front or rear of the steel plate just enters the milling area. Metal chips may then escape through this unfilled gap. By adding a side shielding mechanism, which adapts to the movement of the steel plate, the mechanism effectively blocks the unfilled gap between the two baffles. Together with the front and rear shielding gates and baffles, the side shielding mechanism provides multi-directional protection, completely isolating the milling area from the pressure rollers in the transport mechanism and preventing metal chips from entering the transport mechanism through the gap between the two baffles.
[0010] 3. Based on technical solution 2, the side blocking mechanism includes multiple movable baffles. Each movable baffle is arranged side by side on the side of two baffles in the front-back direction. Each movable baffle is slidably connected to the upper baffle so that it can slide up and down. Two adjacent movable baffles are slidably connected. The lower end of each movable baffle is a slope that is higher in the front and lower in the back. After the movable baffles are assembled, they block the lateral gap between the two baffles.
[0011] By setting the side blocking mechanism as multiple movable baffles that slide side by side in the front-to-back direction, with the lower end of the movable baffles being a slope that is higher in the front and lower in the back, when the steel plate moves forward, the end face of the steel plate contacts the slope of each movable baffle in sequence and pushes the corresponding movable baffle upward, while the movable baffles that do not contact the steel plate automatically fall back to their original position by gravity. Through a simple structure, it achieves adaptive blocking of the entire range of the side gap of the baffle.
[0012] 4. Based on technical solution 2, the side blocking mechanism includes a sliding rail, a linkage spring, a moving blocking assembly and a return spring. The moving blocking assembly includes a front moving blocking assembly and a rear moving blocking assembly. The front moving blocking assembly and the rear moving blocking assembly are connected by the linkage spring. The return spring is connected to the rear moving blocking assembly and is used to drive the front moving blocking assembly and the rear moving blocking assembly to return to their initial positions. The movable shielding assembly includes multiple movable baffles arranged side by side. The movable baffles are hinged and connected to a slide rail in sequence so that they can slide on the slide rail. The slide rail is divided into a slide rail section 1, a slide rail section 2, and a slide rail section 3 connected end to end in sequence. The connection between slide rail section 1 and slide rail section 2, and the connection between slide rail section 3 and slide rail section 2 are both bent. The slide rail section 2 is arranged along the side of the baffle. When the two sets of movable shielding assemblies are in the initial position, the front movable shielding assembly is connected to the slide rail section 2 to block the lateral gap between the two baffles, and the rear movable shielding assembly is connected to the slide rail section 1 to avoid the moving steel plate. When the front end of the steel plate enters the milling area, the steel plate pushes the front moving shield assembly forward. Each of the moving baffles of the front moving shield assembly slides into the third section of the moving slide rail in sequence to avoid the steel plate. When the rear end of the steel plate enters the milling area, the rear moving shield assembly is driven by the linkage spring, and each of its moving baffles slides into the second section of the moving slide rail in sequence to block the lateral gap between the two baffles.
[0013] Instead of requiring the steel plate to be pushed upwards to move forward, a linkage spring, a front moving baffle assembly, and a rear moving baffle assembly are used. The rear moving baffle assembly moves under the drive of the linkage spring, allowing the front and rear moving baffle assemblies to fit against the front and rear ends of the steel plate respectively. They also adapt their positions as the steel plate moves forward, sealing the gap between the two baffles throughout the milling process. This effectively prevents metal chips from entering the transport mechanism through the gap between the two baffles. At the same time, the steel plate pushing the moving baffles forward avoids mutual wear between the steel plate and each moving baffle, and also avoids the risk of jamming when the moving baffles slide up and down relative to each other.
[0014] 5. Based on technical solution 4, the movable shielding component also includes a gap-filling airbag. The gap-filling airbag is disposed on the movable baffle that contacts the steel plate. When the steel plate contacts the gap-filling airbag, it squeezes the gap-filling airbag. The gap-filling airbag deforms and fits the end of the steel plate to prevent metal chips from splashing out from the gap between the movable baffle and the bevel of the steel plate.
[0015] The front end of the steel plate can be pushed forward by a moving baffle. A gap-filling airbag is set between the steel plate and the moving baffle. The gap-filling airbag can prevent the steel plate from being damaged by hard contact with the moving baffle. At the same time, if the end face of the steel plate in contact with the gap-filling airbag has been milled, the gap-filling airbag can adaptively seal the gap between it and the bevel formed after milling, further preventing the metal chips generated by milling from entering the transport mechanism through the gap.
[0016] 6. Based on technical solution 3, the movable shielding component also includes a venting cylinder and a buffer belt. The venting cylinder is connected to the gap-filling airbag, and the buffer belt is arranged in parallel with the gap-filling airbag. Before the gap-filling airbag reaches the bend, the venting cylinder extracts the air from the gap-filling airbag in advance, and the end face of the steel plate contacts the buffer belt to avoid the gap-filling airbag being damaged by direct sliding friction with the steel plate.
[0017] If the front and rear end faces of the steel plate have been milled, burrs may remain on its surface. When the gap-filling airbag turns at the bend along with the moving baffle, the relative sliding between the burrs on the end face of the steel plate and the gap-filling airbag can cause the gap-filling airbag to be scratched and damaged by the burrs. Moreover, when the steel plate moves to the bend, it is already far away from the milling mechanism, and the chips generated by milling are difficult to fly out from the gap between the end face of the steel plate and the moving baffle. Therefore, there is no need for the gap-filling airbag to block it. By setting up a venting cylinder and a buffer belt, when the gap-filling airbag is about to reach the bend, the venting cylinder extracts the gas in the gap-filling airbag, and the steel plate slides in contact with the buffer belt. This can not only isolate the hard wear caused by the direct contact between the steel plate and the moving baffle, but also effectively prevent damage to the gap-filling airbag.
[0018] 7. Based on technical solution 2, the transport mechanism also includes a linkage belt, and each set of pressing rollers includes multiple rollers, with each roller linked together by the linkage belt; The milling machine also includes a steel plate stop device, which is located at the rear end of the transport mechanism. It includes a clutch spline, a steel plate stop block, and a stop sensor. The clutch spline is located at the connection between the linkage belt and the roller to control the contact or disengagement between the linkage belt and the roller. When the first steel plate enters the milling area, if the stop sensor detects that the front end of the second steel plate has a bevel, it drives the steel plate stop block to move and place it at the front end of the second steel plate. The clutch spline slides and the linkage belt disengages from the rollers, and all the rollers at the location of the second steel plate stop rolling, thus stopping the second steel plate.
[0019] The front end of the steel plate may have been milled into a bevel. If it enters the milling area immediately after the preceding steel plate, the small gap between the bevel and the preceding steel plate is not easily blocked by the side shielding mechanism. Metal chips can easily fly out of the milling mechanism through this gap and then splash onto the pressure roller. By setting up a steel plate stopping device, the following steel plate can be driven into the milling area only after the previous steel plate has been milled, thus avoiding the above-mentioned gap and achieving complete shielding between the milling mechanism and the transport mechanism. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the milling machine; Figure 2 A schematic diagram of the overall structure of the milling machine from another angle; Figure 3for Figure 1 A schematic diagram of the structure without the milling mechanism; Figure 4 for Figure 3 A cross-sectional view along the AA direction (with some structural simplifications); Figure 5 for Figure 3 A cross-sectional view along the BB direction (with some structural simplifications); Figure 6 A structural diagram of the transportation mechanism and the side shielding mechanism; Figure 7 A schematic diagram of one embodiment of the side shielding mechanism; Figure 8 A schematic diagram of the steel plate stopping device; Figure 9 A schematic diagram of the steel plate stopping device from another angle; Figure 10 A schematic diagram of the clutch spline and clutch drive cylinder; Figure 11 This is a schematic diagram of the overall structure of another embodiment of the milling machine; Figure 12 for Figure 11 A cross-sectional view along the CC direction; Figure 13 This is a schematic diagram of the structure of the movable baffle in another embodiment.
[0021] The attached figures are labeled as follows: Transport mechanism 1, pressure roller 11, roller 111, linkage belt 12, pressure roller lifting mechanism 13; Milling mechanism 2, milling cutter 21; The shielding device 3 includes a front shielding gate 311, a rear shielding gate 312, a baffle 32, a side shielding mechanism 33, a first section of slide rail 331, a second section of slide rail 332, a third section of slide rail 333, a linkage spring 34, a moving baffle 351, an inclined surface 3511, a lifting slide 3512, a linkage slide 3513, a protrusion 3514, a gap-filling airbag 352, a buffer belt 353, a return spring 36, and a positioning pull rope 37. Steel plate stop device 4, clutch spline 41, clutch drive cylinder 42, steel plate stop block 43, stop block drive cylinder 44; Steel plate 5. Detailed Implementation
[0022] The invention will be described in detail below with reference to specific embodiments.
[0023] See Figures 1-2The milling machine in this embodiment includes a transport mechanism 1 and a milling mechanism 2. The transport mechanism 1 includes two sets of pressing rollers 11 arranged vertically. Each set of pressing rollers 11 includes multiple rollers 111. Each roller 111 is linked by a linkage belt 12. The two sets of pressing rollers 11 can press the steel plate 5 vertically and vertically and drive the steel plate 5 to move from back to front. Figure 1 (The bottom part is the front, and the top part is the back). The transport mechanism 1 also includes a pressure roller lifting mechanism 13, which can adjust the distance between the two sets of pressure rollers 11 to accommodate steel plates 5 of different thicknesses. The milling mechanism 2 is located on one side of the transport mechanism 1. It includes a milling cutter 21 and other support mechanisms. When the steel plate 5 passes through the milling mechanism 2, its edges are milled by the milling cutter 21, thereby completing the edge processing of the steel plate 5.
[0024] Metal chips generated during milling are easily splashed into the gap between the two sets of pressure rollers 11. The hard contact between the steel plate 5, rollers 111, and the metal chips can easily damage the steel plate 5 or cause the rollers 111 to jam. Combined with... Figures 3-4 This milling machine is also equipped with a shielding device 3, which includes a front shielding gate 311, a rear shielding gate 312, and two baffles 32. These are connected in sequence to form a U-shaped structure, surrounding the milling mechanism 2 to form a milling area. The two baffles 32 are distributed vertically. After the steel plate 5 enters the milling area, the two baffles 32 respectively adhere to the upper and lower surfaces of the steel plate 5 to shield the metal chips generated during milling. The front shielding gate 311 and the rear shielding gate 312 are located in front of and behind the milling area, respectively. When the front end of the steel plate 5 reaches the milling area, the rear shielding gate 312 opens to allow passage. The rear shielding gate 312 closes after the steel plate 5 has completely passed through. When the front end of the steel plate 5 reaches the front shielding gate 311, the front shielding gate 311 opens to allow passage. The front shielding gate 311 closes after the steel plate 5 has completely passed through. Specifically, the front blocking gate 311 and the rear blocking gate 312 can be hinged inside the milling machine. The front end of the steel plate 5 first pushes open the rear blocking gate 312 to enter the milling area. When the front end of the steel plate 5 reaches the front blocking gate 311, it pushes open the front blocking gate 311 to leave the milling area. This allows for more precise control of the opening and closing time of the blocking gates, and eliminates the need for an additional power mechanism to open and close the gates.
[0025] By setting a front blocking gate 311, a rear blocking gate 312, and two baffles 32, the corresponding blocking gate opens when the steel plate 5 reaches the corresponding position. The openings of the front blocking gate 311 and the rear blocking gate 312 can only allow the steel plate 5 to pass through, tightly sealing the gap between the steel plate 5 and the opening. The two baffles 32 are arranged around the junction edge of the milling mechanism 2 and the transport mechanism 1, and can respectively fit the upper and lower surfaces of the steel plate 5. When the chips generated during milling are splashed upward or downward at high speed along the tangent of the milling cutter 21, they can be blocked by the upper and lower baffles 32, effectively preventing the metal chips generated during milling from splashing to the contact position between the pressure roller 11 and the steel plate 5, greatly ensuring the production quality of the steel plate 5, and at the same time ensuring the normal operation of the pressure roller 11.
[0026] Although the installed shielding gate and baffle 32 largely block the metal chips generated during milling, there is a large gap between the two baffles 32 that is not filled by the steel plate 5 immediately after the front or rear end of the steel plate 5 enters the milling area. Metal chips may then fly out of the milling area from this unfilled gap. Combined with... Figures 2-4 The shielding device 3 also includes a side shielding mechanism 33, which is located on the side of the two baffles 32. As the steel plate 5 moves forward into the milling area, it gradually fills the gap on the side between the two baffles 32. The side shielding mechanism 33 blocks the gap on the side between the two baffles 32 that is not filled by the steel plate 5, which can effectively prevent metal chips generated when milling the steel plate 5 from flying out of the milling area from the gap.
[0027] Combination Figures 5-7 In one embodiment, the side blocking mechanism 33 includes a movable slide rail, a linkage spring 34, a movable blocking assembly, and a return spring 36. The movable blocking assembly is divided into a front movable blocking assembly and a rear movable blocking assembly, which are connected by the linkage spring 34. The linkage spring 34 can be replaced by an elastic band or elastic rope, depending on the situation. The return spring 36 is connected to the rear movable blocking assembly and can drive the front and rear movable blocking assemblies back to their initial positions. The movable blocking assembly includes multiple movable baffles 351 arranged side by side. The movable baffles 351 are sequentially hinged and connected to the slide rail so that they can slide on the movable slide rail. See also Figure 5The movable slide rail is divided into three sections: slide rail section 331, slide rail section 332, and slide rail section 333, which are connected end to end. The connection between slide rail section 331 and slide rail section 332, and the connection between slide rail section 333 and slide rail section 332, are all bent. Slide rail section 332 is arranged along the side of baffle 32. When the two sets of movable shielding components are in the initial position, the front movable shielding component is connected to slide rail section 332 to shield the gap on the side between the two baffles 32, and the rear movable shielding component is connected to slide rail section 331 to avoid the moving steel plate 5. When the front end of the steel plate 5 enters the milling area, the steel plate 5 pushes the front moving shield assembly forward. The front moving shield assembly constantly blocks the gap between the two baffles 32 that is not filled by the steel plate 5. At the same time, each of the moving baffles 351 of the front moving shield assembly slides into the third section 333 of the sliding rail in sequence to avoid the steel plate 5. When the rear end of the steel plate 5 enters the milling area, the rear moving shield assembly is driven by the linkage spring 34. Each of its moving baffles 351 slides into the second section 332 of the sliding rail in sequence and fits against the rear end of the steel plate 5 to block the gap between the two baffles 32. By setting a linkage spring 34, a front moving shield assembly, and a rear moving shield assembly, the rear moving shield assembly moves under the drive of the linkage spring 34. The front moving shield assembly and the rear moving shield assembly can respectively fit the front end and the rear end of the steel plate 5, and adapt their positions as the steel plate 5 moves forward. Throughout the milling process, the gap between the two baffles 32 is blocked at all times, effectively preventing metal chips from entering the transport mechanism 1 from the gap between the two baffles 32.
[0028] The front end of steel plate 5 needs to push the movable shielding assembly forward. Under the traction of the linkage spring 34, the contact point between the movable shielding assembly and the end face of steel plate 5 experiences significant force, which can easily lead to localized deformation of steel plate 5. See [link / reference] Figures 6-7 The movable shielding assembly also includes a gap-filling airbag 352, which is disposed on the movable baffle 351 that contacts the front or rear end of the steel plate 5, and can alleviate local stress. At the same time, if the end face of the steel plate 5 is easily milled to form a bevel, when the steel plate 5 contacts the gap-filling airbag 352, it squeezes the gap-filling airbag 352, and the gap-filling airbag 352 deforms and fits the end of the steel plate 5 to prevent metal chips from splashing out from the gap between the movable baffle 351 and the bevel of the steel plate 5.
[0029] If the front and rear end faces of the steel plate have been milled, burrs may remain on its surface. When the gap-filling airbag 352 turns at the bend along with the moving baffle 351, the relative sliding between the burrs on the end face of the steel plate 5 and the gap-filling airbag 352 may cause the gap-filling airbag 352 to be scratched and damaged by the burrs. Furthermore, when the steel plate 5 moves to the bend, it is already far away from the milling mechanism 2, and the metal chips generated by milling are difficult to fly out from the gap between the end face of the steel plate 5 and the moving baffle 351. Therefore, the gap-filling airbag 352 is not needed for sealing. Figure 6 and Figure 7The movable shielding assembly also includes a venting cylinder (not shown in the figure), a venting sensor (not shown in the figure), and a buffer belt 353. The venting cylinder communicates with the gap-filling airbag 352, and the buffer belt 353 is arranged side by side with the gap-filling airbag 352. The venting sensor is located at the two bends of the movable slide rail. Before the gap-filling airbag 352 reaches the bend, the venting sensor receives a signal, causing the venting cylinder to preemptively extract air from the gap-filling airbag 352. The end face of the steel plate 5 contacts the buffer belt 353. The buffer belt 353 can rotate and will not rub against the end of the steel plate 5, which can effectively prevent the gap-filling airbag 352 from being damaged by direct sliding friction with the steel plate 5.
[0030] The front end of steel plate 5 may have been milled into a bevel. If it enters the milling area immediately following the preceding steel plate 5, the small gap between the bevel and the preceding steel plate 5 is not easily blocked by the side shielding mechanism 33. Metal chips can easily fly out of the milling mechanism 2 from this gap and then splash onto the pressure roller 11. See also Figure 6 , Figures 8-10 The rear end of the transport mechanism 1 is also equipped with a steel plate stopping device 4. The steel plate stopping device 4 includes a clutch spline 41, a steel plate stop block 43, a stopping sensor (not shown in the figure), a clutch drive cylinder 42, and a stop block drive cylinder 44. The clutch spline 41 is located at the connection between the linkage belt 12 and the roller 111. The clutch drive cylinder 42 is connected to the clutch spline 41 and can drive the clutch spline 41 to slide, thereby controlling the contact or disengagement between the linkage belt 12 and the roller 111. The stop block drive cylinder 44 is connected to the clutch drive cylinder 42 and is connected to the steel plate stop block 43, which can control the steel plate stop block 43 to move downward and block the steel plate 5 from moving forward. When the preceding steel plate 5 enters the milling area, if the stop sensor detects a bevel at the front end of the following steel plate 5, the clutch drive cylinder 42 drives the steel plate stop block 43 to move and position it at the front end of the following steel plate 5. Since the gas in the clutch drive cylinder 42 is drawn into the stop block drive cylinder 44, the clutch spline 41 slides, causing the linkage belt 12 to disengage from the rollers 111. All rollers 111 at the location of the following steel plate 5 stop rolling, thus stopping the following steel plate 5. By setting the steel plate 5 stop device 4, the following steel plate 5 is driven into the milling area only after the preceding steel plate 5 has been milled, thus avoiding the aforementioned gap and achieving complete shielding between the milling mechanism 2 and the transport mechanism 1.
[0031] See Figures 11-13In another embodiment, the side blocking mechanism 33 includes multiple movable baffles 351. Each movable baffle 351 is arranged side by side on the side of the two baffles 32 along the front-back direction. Each movable baffle 351 is provided with a lifting groove 3512 and can slide up and down. Each movable baffle 351 is also provided with a linkage groove 3513 and a protrusion 3514 at the front and back. The protrusion 3514 of the next movable baffle 351 is embedded in the linkage groove 3513 of the previous movable baffle 351, so that the two adjacent movable baffles 351 are slidably connected. The lower end of each movable baffle 351 is a slope 3511 with the front higher than the back. After the movable baffles 351 are assembled, they block the lateral gap between the two baffles 32. The rearmost movable baffle 351 is equipped with a positioning pull rope 37, which exposes its inclined surface 3511 and allows it to contact the end face of the steel plate 5. The inclined surfaces 3511 of the remaining movable baffles 351 are all hidden below the lower baffle 32 (or the gap between the two baffles 32) to completely cover the lateral gap between the two baffles 32. When the front end of the steel plate 5 moves forward to the side blocking mechanism 33, the front end of the steel plate 5 contacts the inclined surface of the rearmost movable baffle 351 and pushes the movable baffle 351 to slide upward. When the inclined surface 3511 of the movable baffle 351 is aligned with the inclined surface 3511 of its adjacent movable baffle 351, the protrusion 3514 of the movable baffle 351 reaches the highest point of the linkage groove 3513 of its adjacent movable baffle 351. The movable baffle 351 drives its adjacent movable baffle 351 to move upward, exposing its inclined surface in the gap between the two baffles 32, so that the steel plate 5 can contact the inclined surface of the movable baffle 351. Each movable baffle 351 slides upward in sequence, giving the steel plate 5 space to move forward. At the same time, the movable baffles 351 that are not in contact with the steel plate 5 fall back to their original position by gravity, automatically filling the gap between the two baffles 32 that was not filled by the steel plate 5. Furthermore, a flexible pad can be added to the inclined surface 3511 of the movable baffle 351 to prevent the tip of the inclined surface 3511 from scratching the steel plate 5. By setting the side blocking mechanism 33 as multiple movable baffles 351 that slide side by side in the front-to-back direction, the lower end of the movable baffle 351 has an inclined surface 3511 that is higher in the front and lower in the back. When the steel plate 5 moves forward, the end face of the steel plate 5 contacts the inclined surface 3511 of each movable baffle 351 in sequence and pushes the corresponding movable baffle 351 upward. The movable baffles 351 that do not contact the steel plate 5 fall back automatically by gravity. It achieves adaptive blocking of the entire range of the side gap of the baffle 32 through a simple structure. Compared with the previous embodiment, this embodiment of the side blocking mechanism 33 has a simpler structure. However, due to the inclined surface 3511 of the movable baffle 351, there will be a small gap at the position where it contacts the front end of the steel plate 5, and the blocking effect is slightly inferior. The two embodiments can be selected according to the situation.
[0032] The overall workflow of the edge milling machine is as follows: Two sets of pressure rollers 11, positioned vertically, press the steel plate 5 and move it from back to front. When the front end of the steel plate 5 reaches the rear blocking gate 312, the rear blocking gate 312 opens to allow passage. The steel plate 5 passes through the gate and enters the milling area. Two baffles 32 adhere to the upper and lower surfaces of the steel plate 5, and the side blocking mechanism 33 blocks the gap between the two baffles 32 that is not filled by the steel plate 5. As the steel plate 5 moves forward, its edges are gradually milled by the milling cutter 21. When the front end of the steel plate 5 reaches the front blocking gate 311, the front blocking gate 311 opens to allow passage, and the steel plate 5 leaves the milling area.
[0033] The transport mechanism 1 simultaneously transports multiple steel plates 5. If the front end of the next steel plate 5 has not been milled, the next steel plate 5 can immediately follow the previous steel plate 5 into the milling area without any gap between the two steel plates 5. If the front end of the next steel plate 5 has been milled into a certain inclined bevel, the bevel can be detected by the stop sensor. The stop sensor sends a signal, the steel plate stop block 43 moves and is placed at the front end of the next steel plate 5, the clutch spline 41 slides and the linkage belt 12 disengages from the roller 111, and the rollers 111 at the location of the next steel plate 5 stop rolling. When the previous steel plate 5 leaves the milling area, the steel plate stop block 43 and the clutch spline 41 are reset, and the next steel plate 5 can move forward.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions created by the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions created by the present invention without departing from the essence and scope of the technical solutions created by the present invention.
Claims
1. A milling machine for milling the edges of steel plates, comprising a transport mechanism and a milling mechanism. The transport mechanism includes two sets of pressure rollers arranged vertically, which press the steel plate together and move it from back to front. The milling mechanism is located on one side of the transport mechanism, and the steel plate is milled as it passes through the milling mechanism. Its features are: It also includes a shielding device, which includes a front shielding gate, a rear shielding gate and two baffles. The two baffles are distributed vertically and arranged around the milling mechanism to form a milling area. After the steel plate enters the milling area, the two baffles are respectively attached to the upper and lower surfaces of the steel plate to shield the metal chips generated by milling. The front and rear blocking gates are located in front of and behind the milling area, respectively. When the front end of the steel plate reaches the milling area, the rear blocking gate opens to allow passage. The steel plate passes through completely and then closes. When the front end of the steel plate reaches the front blocking gate, the front blocking gate opens to allow passage. The steel plate passes through completely and then closes.
2. The milling machine according to claim 1, characterized in that: The shielding device also includes a side shielding mechanism, which is located on the side of the two baffles. As the steel plate moves forward into the milling area, it gradually fills the gap on the side between the two baffles. The side shielding mechanism blocks the gap on the side between the two baffles that is not filled by the steel plate, so as to prevent metal chips generated during the milling of the steel plate from flying out of the milling area from the gap.
3. The milling machine according to claim 2, characterized in that: The side blocking mechanism includes multiple movable baffles, each of which is arranged side by side on the sides of two baffles in the front-back direction. Each movable baffle is slidably connected to the upper baffle so that it can slide up and down. Two adjacent movable baffles are slidably connected. The lower end of each movable baffle is a slope that is higher in the front and lower in the back. After the movable baffles are assembled, they block the lateral gap between the two baffles.
4. The milling machine according to claim 2, characterized in that: The side blocking mechanism includes a sliding rail, a linkage spring, a moving blocking assembly, and a return spring. The moving blocking assembly includes a front moving blocking assembly and a rear moving blocking assembly. The front moving blocking assembly and the rear moving blocking assembly are connected by the linkage spring. The return spring is connected to the rear moving blocking assembly and is used to drive the front moving blocking assembly and the rear moving blocking assembly to return to their initial positions. The movable shielding assembly includes multiple movable baffles arranged side by side. The movable baffles are hinged and connected to a slide rail in sequence so that they can slide on the slide rail. The slide rail is divided into a slide rail section 1, a slide rail section 2, and a slide rail section 3 connected end to end in sequence. The connection between slide rail section 1 and slide rail section 2, and the connection between slide rail section 3 and slide rail section 2 are both bent. The slide rail section 2 is arranged along the side of the baffle. When the two sets of movable shielding assemblies are in the initial position, the front movable shielding assembly is connected to the slide rail section 2 to block the lateral gap between the two baffles, and the rear movable shielding assembly is connected to the slide rail section 1 to avoid the moving steel plate. When the front end of the steel plate enters the milling area, the steel plate pushes the front moving shield assembly forward. Each of the moving baffles of the front moving shield assembly slides into the third section of the moving slide rail in sequence to avoid the steel plate. When the rear end of the steel plate enters the milling area, the rear moving shield assembly is driven by the linkage spring, and each of its moving baffles slides into the second section of the moving slide rail in sequence to block the lateral gap between the two baffles.
5. The milling machine according to claim 4, characterized in that: The movable shielding assembly also includes a gap-filling airbag, which is disposed on the movable baffle that contacts the steel plate. When the steel plate contacts the gap-filling airbag, it squeezes the gap-filling airbag, and the gap-filling airbag deforms and fits the end of the steel plate to prevent metal chips from splashing out from the gap between the movable baffle and the bevel of the steel plate.
6. The milling machine according to claim 3, characterized in that: The movable shielding assembly also includes a venting cylinder and a buffer belt. The venting cylinder is connected to the gap-filling airbag, and the buffer belt is arranged in parallel with the gap-filling airbag. Before the gap-filling airbag reaches the bend, the venting cylinder extracts the air from the gap-filling airbag in advance, and the end face of the steel plate contacts the buffer belt to avoid the gap-filling airbag being damaged by direct sliding friction with the steel plate.
7. The milling machine according to claim 2, characterized in that: The transport mechanism also includes a linkage belt, and each set of pressure rollers includes multiple rollers, which are linked together by the linkage belt; The milling machine also includes a steel plate stop device, which is located at the rear end of the transport mechanism. It includes a clutch spline, a steel plate stop block, and a stop sensor. The clutch spline is located at the connection between the linkage belt and the roller to control the contact or disengagement between the linkage belt and the roller. When the first steel plate enters the milling area, if the stop sensor detects that the front end of the second steel plate has a bevel, it drives the steel plate stop block to move and place it at the front end of the second steel plate. The clutch spline slides and the linkage belt disengages from the rollers, and all the rollers at the location of the second steel plate stop rolling, thus stopping the second steel plate.