Automatic slag removal device and method for steel billet

Abstract

The present invention relates to an automatic slag removal device and method for steel billets, comprising a clamping mechanism, a cutting mechanism and a pushing mechanism. The first driving mechanism of the clamping mechanism is used to drive a corresponding group of pressure wheels to move back and forth perpendicular to the loading and unloading directions of the steel billets. The second driving mechanism of the cutting mechanism is used to drive a corresponding group of blades to move back and forth perpendicular to the loading and unloading directions of the steel billets. The third driving mechanism of the pusher is used to drive a pusher to move back and forth along the loading and unloading directions of the steel billets. After the clamping mechanism positions and clamps the steel billet, it moves and feeds into the steel billet according to the slag removal depth of the steel billet. The pushing mechanism pushes the steel billet so that the blade strips off the slag part of the steel billet. The cutting mechanism, the clamping mechanism and the pushing mechanism work together to automatically, efficiently and without shearing remove the end face slag of the steel billet before rolling. The billet rolling line tail cutting action can be omitted, the forming quality of the rolled steel billet can be improved, the output of a single steel billet can be increased by 5-10 kg, the total output can be increased by 0.5-0.8%, and the cost can be reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of steel billet surface treatment, and particularly relates to a steel billet automatic slag removal device and method. Background Art

[0002] In the continuous casting process of modern steelmaking, in order to obtain standard-sized billets, it is often necessary to cut the billets using a flame cutting method with high separation efficiency. However, the end faces and surfaces of the billets are prone to smelting residual iron oxide slag. These slags will cause quality problems such as blocking the red steel channel, causing steel accumulation, and pressing into the surface of the finished product during the rolling process, resulting in poor surface quality. In actual production, in order to reduce the occurrence of production failures and stabilize the surface quality of the product, the method of lengthening the shear length of the head and tail of the rolled piece is usually adopted, but this method significantly reduces the yield rate. To improve the yield rate, the methods for treating the slag end faces often use manual grinding or increasing the frequency of maintenance of flame cutting machines, but the production and maintenance costs are high and cannot meet the production and cost-effectiveness. Therefore, in response to the problems existing in the existing technology, steel rolling companies urgently need a device and method that can automatically and efficiently remove the slag from the end faces of the billets before rolling, so as to ensure the surface quality of the finished product, increase production, and save production costs. Summary of the Invention

[0003] The present invention aims to solve at least one of the above-mentioned technical problems to a certain extent. The present invention provides an automatic slag removal device and method for steel billets, which adopts a clamping mechanism, a cutting mechanism, coordinated automation, and efficient shear-free slag removal. The tail cutting action of the No. 1 shearing machine of the steel billet rolling line can be omitted, thereby improving the forming quality, output and efficiency of the rolled steel billets and reducing costs.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] An automatic slag removal device for steel billets, comprising a clamping mechanism, a cutting mechanism and a pushing mechanism;

[0006] The clamping mechanism includes a first driving mechanism and at least one set of corresponding pressing wheels, wherein the first driving mechanism is used to drive the corresponding set of pressing wheels to reciprocate in opposite directions perpendicular to the loading and unloading direction of the steel billet;

[0007] The cutting mechanism is located between the clamping mechanism and the pushing mechanism, and includes a second driving mechanism and a plurality of groups of correspondingly arranged blades, wherein the second driving mechanism is used to drive the corresponding groups of blades to reciprocate perpendicular to the loading and unloading direction of the steel billet;

[0008] The pushing mechanism includes a third driving mechanism and a pushing piece, and the third driving mechanism is used to drive the pushing piece to move back and forth along the loading and unloading direction of the steel billet.

[0009] Furthermore, several groups of clamping wheels are located around the loading and unloading direction of the billet, so that when the billet is loaded and unloaded through the loading and unloading mechanism, several clamping wheels move oppositely in the vertical loading and unloading direction, quickly clamp the billet from all sides, and thus realize the positioning of the billet, further improving the reliability and stability of the billet loading and unloading and slag removal actions.

[0010] Furthermore, the pressure wheel is rotatably connected to a slider, and the slider is equipped with a first slide groove and a first slide rail. The slider can slide relative to the first slide groove and the first slide rail along the moving direction of the pressure wheel. When the first driving mechanism drives the pressure wheel to move, the slider is guided by the sliding cooperation with the first slide groove and the first slide rail, thereby further improving the reliability and stability of the clamping mechanism in clamping the steel billet or releasing the clamping.

[0011] Furthermore, the blade is provided with a V-shaped cutting edge corresponding to the corner of the billet, and the second driving mechanism is used to drive the blade to move along the symmetry line direction of the V-shaped cutting edge. The cutting edges of several blades can be combined to cover the circumference of the billet, so that several groups of blades can feed in opposite directions along the diagonal direction of the billet, further improving the clamping and positioning performance. At the same time, since the cutting slag of the billet is mostly distributed at the four corners of the billet, the use of the V-shaped cutting edge to feed along the diagonal direction of the billet can ensure that the cutting edge covers the corners of the billet and the pressure effect is reliable, further improving the cutting slag removal effect.

[0012] Furthermore, the blade is connected to a blade holder, and the blade holder is equipped with a second slide groove and a second slide rail. The blade holder can slide relative to the second slide groove and the second slide rail along the moving direction of the blade; when the second driving mechanism drives the blade to move, the blade holder is guided to slide along the second slide groove and the second slide rail, thereby further improving the reliability and stability of the cutting mechanism operation.

[0013] Furthermore, the blade is detachably connected to the blade holder, and the slag removal capability can be maintained by replacing the blade, and the requirements of steel billets of different sizes and different slag removal depth ranges can be met by replacing the blade with a blade of appropriate size.

[0014] Further, including a hydraulic system;

[0015] The first driving mechanism includes a plurality of clamping cylinders, the piston rods of the clamping cylinders are used to drive the pinch wheel to move back and forth;

[0016] The second driving mechanism includes a plurality of cutting oil cylinders, the piston rods of the cutting oil cylinders are used to drive the blades to move back and forth;

[0017] The third driving mechanism includes a pushing cylinder, the piston rod of which is used to drive the pushing member to move back and forth;

[0018] The hydraulic system is used to control the operation of the clamping cylinder, the cutting cylinder and the pushing cylinder.

[0019] The use of hydraulic drive to perform clamping, cutting and pushing actions makes it easy to achieve fast and stable movement, braking and frequent reversing, further improving the stability and efficiency of the device operation.

[0020] Furthermore, the hydraulic system includes an oil tank, an oil pump, a valve group, an air cooling device and a return oil filter. Oil pipes are provided between the oil tank and the oil pump, between the valve group and the clamping oil cylinder, between the valve group and the cutting oil cylinder, between the valve group and the pushing oil cylinder, between the valve group and the air cooling device, between the air cooling device and the return oil filter, and between the return oil filter and the oil tank. The piston rods of the clamping oil cylinder, cutting oil cylinder and pushing oil cylinder are reversed by reversing the valve group, and the air cooling device and the return oil filter are used to cool and filter the oil in the hydraulic system, thereby further improving the stability and efficiency of the operation of the device.

[0021] Further, it includes a cover body;

[0022] The cover body is provided with a cutting window in the direction of loading and unloading the steel billet;

[0023] The cutting mechanism and the pusher are arranged in the cover;

[0024] A waste slag collecting trough is provided below between the cutting mechanism and the pushing mechanism.

[0025] The clamping mechanism, cutting mechanism and pushing mechanism are integrated and installed on the cover body, making the device more compact. At the same time, when the steel billet is loaded, it can be clamped and positioned by the clamping mechanism and then extended along the cutting window into the cutting mechanism to perform slag removal operations. The removed slag can directly fall into the waste slag collection trough below for collection, thereby preventing the slag from splashing and polluting the working environment.

[0026] Furthermore, it includes a loading and unloading mechanism, which is used to drive the steel billets to be loaded and unloaded along the same path, and is used to work in conjunction with the clamping mechanism to achieve automatic positioning and loading and unloading of the steel billets along the same path, further improving the automation efficiency and slag removal reliability.

[0027] Furthermore, the loading and unloading mechanism includes a fourth drive mechanism and a loading and unloading roller. The fourth drive mechanism is used to drive the loading and unloading roller to rotate forward or reverse. The loading and unloading roller can support the steel billet and reverse to achieve steel billet loading, and support the steel billet and rotate forward to achieve steel billet unloading so that it can be sent to the heating furnace for the next processing, so that the steel billet can be loaded and unloaded along the same path, further simplifying the device.

[0028] Furthermore, it includes a control system for controlling the operation of the loading and unloading mechanism, the clamping mechanism, the cutting mechanism and the pushing mechanism.

[0029] Furthermore, the pusher is provided with a pressure sensor in the pushing direction which is electrically connected to the control system. When the billet is loaded through the loading and unloading mechanism, the slag part of the billet can pass over the blade, and the pressure sensor on the pusher can contact the billet to collect the pressure signal and transmit it to the control system. The control system uses the pressure signal as the signal that the billet is in place to control the loading and unloading mechanism to stop loading, thereby facilitating automatic operation.

[0030] A method for automatically removing slag from a steel billet, based on any one of the above-mentioned automatic slag removal devices for steel billets, comprising:

[0031] When the billet is fed to the center of several blades of the cutting mechanism, the clamping wheel of the clamping mechanism moves to clamp the outer wall of the billet and position the billet;

[0032] The billet is positioned and loaded until the slag portion of the billet exceeds the blade, and the loading is stopped. The blades of the cutting mechanism move and cut into the billet according to the slag removal depth of the billet.

[0033] After the blade is fed, the pushing mechanism pushes the billet in the direction of billet unloading, so that the blade can strip off the slag part of the billet to automatically remove the slag and unload the billet;

[0034] The billet is unloaded until it leaves the cutting mechanism and the cutting mechanism is reset;

[0035] The billet is unloaded until it is separated from the clamping mechanism and the clamping mechanism is reset;

[0036] After the billet is unloaded, the pushing mechanism is reset.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] (1) The first driving mechanism of the clamping mechanism drives the corresponding group of clamping wheels to move in opposite directions perpendicular to the loading and unloading directions of the billet to clamp the outer wall of the billet. The second driving mechanism of the cutting mechanism drives the corresponding group of blades to move in opposite directions perpendicular to the loading and unloading directions of the billet to feed. The third driving mechanism of the pushing mechanism drives the pushing piece to move along the unloading direction of the billet to push the billet. The clamping mechanism and the cutting mechanism work together to enable the blade to strip the slag part of the billet for automatic slag removal. After the cutting mechanism, the clamping mechanism and the pushing mechanism are reset, the slag removal operation can be carried out again. The slag on the end face of the billet can be automatically, efficiently and without shearing before the billet is rolled, thereby improving the forming quality of the rolled billet.

[0039] (2) When loading and unloading the billet, the loading and unloading mechanism and the clamping mechanism work together to realize automatic positioning and loading and unloading of the billet along the same path, which can further improve the automation efficiency and slag removal reliability.

[0040] (3) The clamping wheel and blade operate reliably and stably under the sliding guide. The control system and hydraulic system are hydraulically driven to perform clamping, cutting and pushing actions, which makes it easy to achieve fast and stable movement, braking and frequent reversing. The pressure sensor obtains the position signal, which further improves the stability and automatic efficiency of the device operation.

[0041] (4) The V-shaped blade is used to feed along the diagonal direction of the billet to further improve the slag removal effect. The removed slag can be collected by the waste slag collection tank, and the slag removal ability can be maintained by replacing the blade. The blade of appropriate size can be replaced, which is suitable for various types of billets.

[0042] In summary, compared with the existing slag removal method of lengthening the shearing length of the head and tail of the rolled piece, the slag removal device and method can eliminate the tail cutting action of the No. 1 shear of the billet rolling line, reduce the wear of the shearing machine blade, and improve the yield rate, and the output of a single billet is increased by 5-10kg; compared with the existing slag removal method of increasing the maintenance frequency of manual grinding or flame cutting machines, it is more efficient and can meet the production rhythm requirements. The total output can be increased by 0.5-0.8%, while the cost is lower, meeting the billet production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0044] Figure 1 is a rear perspective view of embodiment 1 of the present invention;

[0045] Figure 2 is a rear exploded view of embodiment 1 of the present invention;

[0046] Figure 3 is a front perspective view of embodiment 1 of the present invention;

[0047] Figure 4 This is a three-dimensional diagram of Example 1 of the present invention with part of the cover omitted;

[0048] Figure 5 is a front exploded view of Example 1 of the present invention;

[0049] Figure 6 1 is a diagram showing the state change of the clamping mechanism before and after clamping according to Example 1 of the present invention;

[0050] Figure 7 1 is a state diagram of the cutting mechanism before feeding according to embodiment 1 of the present invention;

[0051] Figure 8 This is a state diagram of the cutting mechanism after feeding in Example 1 of the present invention.

[0052] In the figure, reference numerals are: clamping mechanism 1, first driving mechanism 101, clamping cylinder 1011, piston rod 1012 of the clamping cylinder, pressing wheel 102, slider 103, first slide groove 104, first slide rail 105, first boss 106;

[0053] Cutting mechanism 2, second driving mechanism 201, cutting cylinder 2011, piston rod 2012 of cutting cylinder, blade 202, V-shaped cutting edge 2021, blade holder 203, second slide groove 204, second slide rail 205, second boss 206, third boss 207;

[0054] Pushing mechanism 3, third driving mechanism 301, pushing cylinder 3011, piston rod 3012 of the pushing cylinder, pushing member 302;

[0055] Hydraulic system 4, oil tank 401, oil pump 402, valve group 403, air cooling device 404, oil return filter 405, cleaning window 406, liquid level gauge 407, oil pipe 408;

[0056] Cover 5, cutting window 501, waste residue collecting tank 502, cutting main board 503, pusher base 504, pull rod 505;

[0057] Loading and unloading mechanism 6, fourth driving mechanism 601, loading and unloading roller table 602, electrical cabinet 7, pressure sensor 8, steel billet 9, slag part 901; Figure 6 (a) shows the state of releasing the clamping. Figure 6 (b) shows the clamping state diagram. DETAILED DESCRIPTION

[0058] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "axial", "radial", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances. Example 1:

[0061] like Figure 1-8 As shown, it is a preferred embodiment of the automatic slag removal device for steel billets of the present invention, wherein the slag removal device comprises a clamping mechanism 1, a cutting mechanism 2 and a pushing mechanism 3;

[0062] The clamping mechanism 1 includes a first driving mechanism 101 and at least one set of corresponding pressing wheels 102, wherein the first driving mechanism 101 is used to drive the corresponding set of pressing wheels 102 to reciprocate perpendicular to the loading and unloading direction of the steel billet 9;

[0063] The cutting mechanism 2 is located between the clamping mechanism 1 and the pushing mechanism 3. The cutting mechanism 2 includes a second driving mechanism 201 and a plurality of correspondingly arranged blades 202. The second driving mechanism 201 is used to drive the corresponding blades 202 to reciprocate perpendicular to the loading and unloading direction of the steel billet 9.

[0064] The pushing mechanism 3 includes a third driving mechanism 301 and a pushing piece 302 . The third driving mechanism 301 is used to drive the pushing piece 302 to move back and forth along the loading and unloading direction of the steel billet 9 .

[0065] Furthermore, several groups of clamping wheels 102 are located around the loading and unloading direction of the steel billet 9, so that when the steel billet 9 is loaded and unloaded through the loading and unloading mechanism 6, several clamping wheels 102 move oppositely in the vertical loading and unloading direction, quickly clamp the steel billet 9 from all sides, and thus realize the positioning of the steel billet 9, further improving the reliability and stability of the loading and unloading and slag removal actions of the steel billet 9.

[0066] Furthermore, the clamping wheel 102 is rotatably connected to a slider 103, and the slider 103 is equipped with a first slide groove 104 and a first slide rail 105. The slider 103 can slide relative to the first slide groove 104 and the first slide rail 105 along the moving direction of the clamping wheel 102. When the first driving mechanism 101 drives the clamping wheel 102 to move, the slider 103 is guided by the sliding cooperation with the first slide groove 104 and the first slide rail 105, thereby further improving the reliability and stability of the clamping mechanism 1 in clamping the steel billet 9 or releasing the clamping.

[0067] Furthermore, the first slide rails 105 are located on both sides of the first slide groove 104 , and the slider 103 is provided with a first boss 106 that cooperates with the first slide groove 104 and the first slide rail 105 , which facilitates the setting of the slider 103 and further improves the stability of the movement of the pressure wheel 102 .

[0068] Furthermore, the blade 202 is provided with a V-shaped cutting edge 2021 corresponding to the corner of the billet 9, and the second driving mechanism 201 is used to drive the blade 202 to move along the symmetry line direction of the V-shaped cutting edge 2021. The cutting edges of several blades 202 can be combined to cover the circumference of the billet 9, so that several groups of blades 202 can feed in opposite directions along the diagonal direction of the billet 9, which further improves the clamping and positioning performance. At the same time, since the cutting slag of the billet 9 is mostly distributed at the four corners of the billet 9, the use of the V-shaped cutting edge 2021 to feed along the diagonal direction of the billet 9 can ensure that the cutting edge covers the corners of the billet 9 and the pressure effect is reliable, which further improves the cutting slag removal effect.

[0069] Furthermore, the blade 202 is connected to a blade seat 203, and the blade seat 203 is equipped with a second slide groove 204 and a second slide rail 205. The blade seat 203 can slide relative to the second slide groove 204 and the second slide rail 205 along the moving direction of the blade 202; when the second driving mechanism 201 drives the blade 202 to move, the blade seat 203 slides and guides along the second slide groove 204 and the second slide rail 205, thereby further improving the reliability and stability of the operation of the cutting mechanism 2.

[0070] Furthermore, the second slide rails 205 are located on both sides of the second slide groove 204, and the knife seat 203 is provided with a second boss 206 that cooperates with the first slide groove 104 and the second slide rails 205, which facilitates the setting of the knife seat 203 and further improves the stability of the movement of the blade 202.

[0071] Furthermore, the blade 202 is detachably connected to the blade holder 203, and the slag removal capability can be maintained by replacing the blade 202. The blade 202 of appropriate size can be replaced to meet the requirements of steel billets 9 of different sizes and different slag removal depth ranges.

[0072] Furthermore, the knife seat 203 is provided with a third boss 207 that limits the blade 202 and is used to assist in quickly positioning the blade 202. The blade 202 can be detachably connected to the knife seat 203 by multiple screws, further facilitating the disassembly and assembly of the blade 202.

[0073] Further, it includes a hydraulic system 4;

[0074] The first driving mechanism 101 includes a plurality of clamping cylinders 1011, and the piston rods of the clamping cylinders 1011 are used to drive the clamping wheel 102 to move back and forth;

[0075] The second driving mechanism 201 includes a plurality of cutting oil cylinders 2011, and the piston rods of the cutting oil cylinders 2011 are used to drive the blades 202 to move back and forth;

[0076] The third driving mechanism 301 includes a pushing cylinder 3011, the piston rod of which is used to drive the pushing member 302 to move back and forth;

[0077] The hydraulic system 4 is used to control the operation of the clamping cylinder 1011 , the cutting cylinder 2011 and the pushing cylinder 3011 .

[0078] The use of hydraulic drive to perform clamping, cutting and pushing actions makes it easy to achieve fast and stable movement, braking and frequent reversing, further improving the stability and efficiency of the device operation.

[0079] Furthermore, the hydraulic system 4 includes an oil tank 401, an oil pump 402, a valve group 403, an air cooling device 404 and an oil return filter 405. Between the oil tank 401 and the oil pump 402, between the valve group 403 and the clamping cylinder 1011, between the valve group 403 and the cutting cylinder 2011, between the valve group 403 and the pushing cylinder 3011, between the valve group 403 and the air cooling device 404, between the air cooling device 404 and the oil return filter 405, and between the oil return filter 405 and the oil return filter 406. Oil pipes 408 are provided between 405 and the oil tank 401. Part of the oil pipes 408 are not shown. The reversal of the piston rods of the clamping cylinder 1011, the cutting cylinder 2011 and the pushing cylinder 3011 is achieved through the reversal of the valve group 403. The piston rods further drive the movement of each clamping wheel 102, the blade 202 or the pushing piece 302. The air cooling device 404 and the return oil filter 405 are used to cool and filter the oil of the hydraulic system 4, further improving the stability and efficiency of the operation of the device.

[0080] Furthermore, the oil tank 401 is provided with a cleaning window 406 and a liquid level gauge 407 for cleaning the oil tank 401 and detecting the liquid level of the oil tank 401 .

[0081] Further, it includes a cover body 5;

[0082] The cover 5 is provided with a cutting window 501 in the loading and unloading direction of the steel billet 9;

[0083] The cutting mechanism 2 and the pusher 302 are arranged in the cover 5;

[0084] A waste residue collecting trough 502 is provided below between the cutting mechanism 2 and the pushing mechanism 3 .

[0085] The clamping mechanism 1, the cutting mechanism 2 and the pushing mechanism 3 are integrated and installed on the cover body 5, making the device more compact; at the same time, when the steel billet 9 is loaded, it can be clamped and positioned by the clamping mechanism 1 and extended into the cutting mechanism 2 along the cutting window 501 to perform slag removal operations. The removed slag can directly fall into the waste slag collection trough 502 below for collection, thereby preventing the slag from splashing and polluting the working environment.

[0086] Furthermore, the cover body 5 includes a cutting main board 503, a pusher base 504 and a plurality of pull rods 505;

[0087] The cutting window 501, the clamping mechanism 1 and the cutting mechanism 2 are arranged on the cutting main plate 503, and the cutting window 501 is located at the center of the plurality of pressing wheels 102 and the center of the plurality of blades 202;

[0088] The pushing mechanism 3 is arranged on the pushing base 504;

[0089] A plurality of tie rods 505 vertically connect the cutting main plate 503 and the pusher base 504, further facilitating installation and improving the strength and compactness of the device.

[0090] Furthermore, the first sliding groove 104 and the second sliding groove 204 are arranged on both sides of the cutting window 501 of the cutting main plate 503, further simplifying the device.

[0091] Furthermore, it includes a loading and unloading mechanism 6, which is used to drive the steel billet 9 to be loaded and unloaded along the same path, and is used to work in conjunction with the clamping mechanism 1 to achieve automatic positioning and loading and unloading of the steel billet 9 along the same path, further improving the automation efficiency and slag removal reliability.

[0092] Furthermore, the loading and unloading mechanism 6 includes a fourth driving mechanism 601 and a loading and unloading roller 602. The fourth driving mechanism 601 is used to drive the loading and unloading roller 602 to rotate forward or reverse, so that the steel billet 9 is placed above the loading and unloading roller 602, and the steel billet 9 can be supported and rolled by the loading and unloading roller 602, and the loading and unloading roller 602 can be reversed to realize loading of the steel billet 9. The steel billet 9 can be unloaded by supporting the loading and unloading roller 602 and rotating forward so as to be sent to the heating furnace for the next processing, so that the steel billet 9 can be loaded and unloaded along the same path, further simplifying the device.

[0093] Furthermore, the loading and unloading mechanism 6 and the clamping mechanism 1 are located outside the cover 5, so that the positioning of the steel billet 9 can be seen from top to bottom.

[0094] Furthermore, the fourth driving mechanism 601 includes a servo motor, and the motor shaft of the servo motor is connected to the loading and unloading roller 602, which is used to drive the loading and unloading roller 602 to rotate forward or reverse.

[0095] Furthermore, it includes a control system for controlling the operation of the loading and unloading mechanism 6, the clamping mechanism 1, the cutting mechanism 2 and the pushing mechanism 3. The control system includes an electrical cabinet 7 and electrical components arranged in the electrical cabinet 7. The electrical components are electrically connected to the servo motor, the oil pump 402, the valve group 403, and the air cooling device 404, and are used to control the operation of the loading and unloading mechanism 6 and the hydraulic system 4.

[0096] Furthermore, the pushing piece 302 is provided with a pressure sensor 8 in the pushing direction which is electrically connected to the control system. When the billet 9 is loaded through the loading and unloading mechanism 6, the slag part of the billet 9 can pass through the blade 202, and the pressure sensor 8 on the pushing piece 302 can contact the billet 9 to collect the pressure signal and transmit it to the control system. The control system uses the pressure signal as the arrival signal of the billet 9 to control the loading and unloading mechanism 6 to stop loading, thereby facilitating automatic operation. Example 2:

[0097] A preferred embodiment of the automatic slag removal method for steel billets according to the present invention is based on the automatic slag removal device for steel billets described in Example 1 above, and the method comprises the following steps:

[0098] S1: The steel billet 9 is placed on the loading and unloading roller 602 of the loading and unloading mechanism 6. The loading and unloading roller 602 is driven by the fourth front driving mechanism to reverse and drive the tail of the steel billet 9 to the cutting window 501 in the center of the plurality of blades 202 of the cutting mechanism 2. When loading, Figure 6 As shown in (b), the first driving mechanism 101 drives the corresponding group of clamping wheels 102 to move perpendicular to the feeding direction, automatically clamp the outer wall of the billet 9 and position the billet 9;

[0099] S2: The loading and unloading roller 602 continues to reverse and pushes the billet 9 into the cutting window 501. Under the action of the loading and unloading mechanism 6 and the clamping mechanism 1, the billet 9 is positioned and loaded until the slag at the tail of the billet 9 exceeds the blade 202. The pressure sensor 8 on the pusher 302 contacts the tail of the billet 9 to collect the pressure signal and transmit it to the control system. The control system uses the pressure signal as the in-position signal of the billet 9 to control the loading and unloading mechanism 6 to stop loading. The second driving mechanism 201 of the cutting mechanism 2 drives the corresponding group of blades 202 to move in the opposite direction of the loading direction of the loading and unloading mechanism 6, as shown in FIG. Figure 8 As shown, the blade 202 is moved into the billet 9 according to the slag removal depth of the billet 9, and the cutting edges of several blades 202 are combined to cover the inner circumference of the billet 9;

[0100] S3: After the blade is fed, the pushing mechanism 3 drives the pushing member 302 via the third driving mechanism 301 to move along the unloading direction of the loading and unloading mechanism 6 to push the billet 9, so that the blade 202 strips the slag portion of the billet 9 for automatic slag removal. The stripped slag portion is collected in the waste slag collecting trough 502, and the loading and unloading roller 602 of the loading and unloading mechanism 6 rotates forward to transport the billet 9 to the heating furnace of the billet rolling mill.

[0101] S4: The billet 9 is unloaded until the billet 9 is separated from the cutting mechanism 2. Figure 6 As shown in (a), the second driving mechanism 201 of the cutting mechanism 2 drives the plurality of blades 202 to move in the reverse direction and reset;

[0102] S5: The billet 9 is unloaded until the billet 9 is separated from the clamping mechanism 1. Figure 7 As shown, the first driving mechanism 101 of the clamping mechanism 1 drives the plurality of clamping wheels 102 to move in the reverse direction and reset;

[0103] S6: After the billet 9 is unloaded, the third driving mechanism 301 of the pushing mechanism 3 drives the pushing member 302 to move in the reverse direction, that is, to move and reset along the loading direction of the loading and unloading mechanism 6;

[0104] S7: The steel billet 9 is loaded again, and steps S1-S6 are repeated to perform the next automatic slag removal process.

[0105] The above-mentioned slag removal device and method adopts the loading and unloading mechanism 6 to drive the steel billet 9 to automatically load and unload along the same path under the automatic clamping positioning of the clamping mechanism 1. After the loading is in place, the several blades 202 of the cutting mechanism 2 are fed into the steel billet 9 in the clamping and positioning state, and the pushing mechanism 3 is cooperated to push the steel billet 9, so that the blades 202 peel off the slag part of the steel billet 9. The slag on the end face of the steel billet 9 can be automatically, efficiently and without shearing before the steel billet 9 is rolled. After the slag removal operation is completed, the material is automatically unloaded and sent to the heating furnace of the rolling line to ensure the surface quality of the finished product; compared with the existing slag removal method with a longer shearing length of the head and tail of the rolled piece, the tail cutting action of the No. 1 shear of the steel billet rolling line can be omitted, the wear of the shearing machine blades can be reduced, the yield rate can be improved, and the output of a single steel billet can be increased by 5-10 kg; compared with the existing slag removal method with increased maintenance frequency of manual grinding or flame cutting machines, the efficiency is higher and can meet the production rhythm requirements. The total output can be increased by 0.5-0.8%, while the cost is lower, meeting the steel billet production needs.

[0106] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A billet automatic slag removal device, characterized in that: It comprises a clamping mechanism (1), a cutting mechanism (2) and a pushing mechanism (3); The clamping mechanism (1) includes a first driving mechanism (101) and at least one group of correspondingly arranged clamping wheels (102), wherein the plurality of groups of clamping wheels (102) are located around the loading and unloading direction of the steel billet (9), and the first driving mechanism (101) is used to drive the corresponding group of clamping wheels (102) to move back and forth perpendicularly to the loading and unloading direction of the steel billet (9). When the steel billet (9) is loaded onto the center of the plurality of blades (202) of the cutting mechanism (2), the clamping wheels (102) of the clamping mechanism (1) move to clamp the outer wall of the steel billet (9) and position the steel billet (9); The cutting mechanism (2) is located between the clamping mechanism (1) and the pushing mechanism (3), and the cutting mechanism (2) includes a second driving mechanism (201) and a plurality of groups of correspondingly arranged blades (202), wherein the blades (202) are provided with V-shaped cutting edges (2021) corresponding to the corners of the steel billet (9), and the cutting edges of the plurality of blades (202) can be combined to cover the circumference of the steel billet (9), and the second driving mechanism (201) is used to drive the corresponding group of blades (202) to move back and forth perpendicular to the loading and unloading direction of the steel billet (9) and along the symmetry line direction of the V-shaped cutting edge (2021); The pushing mechanism (3) comprises a third driving mechanism (301) and a pushing piece (302). The third driving mechanism (301) is used to drive the pushing piece (302) to move back and forth along the loading and unloading direction of the steel billet (9). After the blade is fed, the pushing mechanism (3) pushes the steel billet (9) along the unloading direction of the steel billet (9), so that the blade (202) peels off the slag portion of the steel billet (9) to automatically remove the slag.

2. The automatic slag removal device for steel billets according to claim 1, characterized in that: The pressure wheel (102) is rotatably connected to a slider (103), and the slider (103) is matched with a first slide groove (104) and a first slide rail (105). The slider (103) can slide relative to the first slide groove (104) and the first slide rail (105) along the moving direction of the pressure wheel (102).

3. The automatic slag removal device for steel billets according to claim 1, characterized in that: The blade (202) is connected to a blade seat (203), and the blade seat (203) is matched with a second slide groove (204) and a second slide rail (205). The blade seat (203) can slide relative to the second slide groove (204) and the second slide rail (205) along the moving direction of the blade (202).

4. The automatic slag removal device for steel billets according to claim 1, characterized in that: including a hydraulic system (4); The first driving mechanism (101) comprises a plurality of clamping oil cylinders (1011), wherein the piston rods of the clamping oil cylinders (1011) are used to drive the clamping wheel (102) to move back and forth; The second driving mechanism (201) comprises a plurality of cutting oil cylinders (2011), wherein the piston rods of the cutting oil cylinders (2011) are used to drive the blades (202) to move back and forth; The third driving mechanism (301) comprises a pushing oil cylinder (3011), the piston rod of which is used to drive the pushing member (302) to move back and forth; The hydraulic system (4) is used to control the operation of the clamping cylinder (1011), the cutting cylinder (2011) and the pushing cylinder (3011).

5. The automatic slag removal device for steel billets according to claim 4, characterized in that: The hydraulic system (4) comprises an oil tank (401), an oil pump (402), a valve group (403), an air cooling device (404) and an oil return filter (405). Oil pipes (408) are provided between the oil tank (401) and the oil pump (402), between the valve group (403) and the clamping oil cylinder (1011), between the valve group (403) and the cutting oil cylinder (2011), between the valve group (403) and the pushing oil cylinder (3011), between the valve group (403) and the air cooling device (404), between the air cooling device (404) and the oil return filter (405), and between the oil return filter (405) and the oil tank (401).

6. The automatic slag removal device for steel billets according to claim 1, characterized in that: including a cover body (5); The cover body (5) is provided with a cutting window (501) in the loading and unloading direction of the steel billet (9); The cutting mechanism (2) and the pushing member (302) are arranged in the cover body (5); A waste residue collection trough (502) is provided below between the cutting mechanism (2) and the pushing mechanism (3).

7. The automatic slag removal device for steel billets according to claim 6, characterized in that: It comprises a loading and unloading mechanism (6), wherein the loading and unloading mechanism (6) is used to drive the steel billets (9) to be loaded and unloaded along the same path.

8. The automatic slag removal device for steel billets according to claim 7, characterized in that: It includes a control system for controlling the operation of a loading and unloading mechanism (6), a clamping mechanism (1), a cutting mechanism (2) and a pushing mechanism (3); The pushing member (302) is provided with a pressure sensor (8) electrically connected to the control system and in the pushing direction.

9. A method for automatic slag removal of steel billets, characterized in that: The automatic slag removal device for steel billets according to any one of claims 1 to 8 comprises: When the steel billet (9) is fed to the center of the plurality of blades (202) of the cutting mechanism (2), the clamping wheel (102) of the clamping mechanism (1) moves to clamp the outer wall of the steel billet (9) and position the steel billet (9); The steel billet (9) is positioned and loaded until the slag portion of the steel billet (9) exceeds the blade (202), and the loading is stopped. The plurality of blades (202) of the cutting mechanism (2) are moved and fed into the steel billet (9) according to the slag removal depth of the steel billet (9); After the blade is fed, the pushing mechanism (3) pushes the billet (9) along the blanking direction of the billet (9), so that the blade (202) peels off the slag portion of the billet (9) to automatically remove the slag, and the billet (9) is blanked; The steel billet (9) is unloaded until the steel billet (9) is separated from the cutting mechanism (2), and the cutting mechanism (2) is reset; The steel billet (9) is unloaded until the steel billet (9) is separated from the clamping mechanism (1), and the clamping mechanism (1) is reset; After the billet (9) is unloaded, the pushing mechanism (3) is reset.

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