A limiting device, a splitting shearing machine and its working method

Abstract

The present invention provides a limiting device, a splitting shearing machine and a working method thereof, which relate to the technical field of machining equipment. The limiting component mechanism of this limiting device is arranged between the inlet pinch rolls and the outlet of the splitting shearing machine. The limiting component of the limiting device can reciprocate along the slide seat of the limiting device under the driving action of the driving mechanism towards the side wall of the heavy plate. The control mechanism can control the driving mechanism to work, drive the limiting component to fit with the side wall of the heavy plate, move away from the side wall of the heavy plate and stop after the fitting and positioning are completed, and form a preset distance from the side wall of the heavy plate. In this way, when the limiting component is directly in contact with the side wall of the heavy plate, it can avoid being deformed and damaged due to the extrusion force generated by shearing, and also ensure that the side wall of the heavy plate moves and fits with the limiting component under the action of the extrusion force, realizing the limitation of the side wall of the heavy plate by the limiting component, thereby ensuring the position stability of the heavy plate under the action of the shearing force and ensuring the notch quality of the heavy plate.

Description

Technical Field

[0001] The present invention relates to the technical field of machining equipment, and more particularly, to a limiting device, a slitting shear and a working method thereof. Background Art

[0002] In the fields of construction and mechanical manufacturing, wide and thick plates, as important steel products, have been widely used. Before the wide and thick plates are specifically applied, they need to be processed according to the application requirements. During the processing, the wide and thick plates can be longitudinally slit into two wide and thick plates through a wide and thick plate shearing system to meet the width requirements under different application needs.

[0003] In the wide and thick plate shearing system, the slitting shear is the working equipment for finally realizing the longitudinal slitting of the wide and thick plate. When longitudinally slitting the wide and thick plate, the stable clamping of the wide and thick plate during slitting is realized through the inlet pinch rolls and the outlet pinch rolls of the slitting shear.

[0004] However, when the head of the wide and thick plate exits from the slitting outlet of the slitting shear and continues to move, as the wide and thick plate moves, the tail of the wide and thick plate leaves the inlet pinch rolls. At this time, the wide and thick plate is still being slit, and the tail of the wide and thick plate is in a free state. Therefore, when the shearing force acts on the wide and thick plate, the wide and thick plate is extremely prone to positional deviation under the action of the shearing force, resulting in a decrease in the notch quality of the wide and thick plate. Summary of the Invention

[0005] The problem solved by the present invention is how to ensure the positional stability of the wide and thick plate under the action of the shearing force when the tail of the wide and thick plate leaves the inlet pinch rolls, so as to ensure the notch quality of the wide and thick plate.

[0006] To solve the above problems, on the one hand, the present invention provides a limiting device, including:

[0007] A sliding seat, which is used to be installed on the slitting shear and is located between the inlet pinch rolls and the slitting outlet of the slitting shear;

[0008] A limiting component, which is slidably installed on the sliding seat;

[0009] A driving mechanism, which is drivingly connected to the limiting component. The driving mechanism is used to drive the limiting component to reciprocate along the sliding seat, and the moving direction of the limiting component is perpendicular to the moving direction of the wide and thick plate;

[0010] A control mechanism, which is electrically connected to the driving mechanism. The control mechanism is used for:

[0011] When the tail of the wide and thick plate leaves the inlet pinch rolls, driving the limiting component to move towards the side wall of the wide and thick plate through the driving mechanism;

[0012] When the limiting component moves to fit against the side wall of the wide and thick plate, the driving mechanism drives the limiting component to move a preset distance away from the side wall of the wide and thick plate and keeps the limiting component stationary.

[0013] When the tail of the wide and thick plate passes through the outlet of the slitting shear, the driving mechanism drives the limiting component to reset.

[0014] Compared with the prior art, the beneficial effects of the limiting device of the present invention include: a slide seat that can be installed on the slitting shear is provided between the inlet pinch rolls and the outlet of the slitting shear of the slitting shear machine, a limiting component is slidably installed on the slide seat, and a driving mechanism that is drivingly connected to the limiting component is provided at the same time. The driving mechanism can drive the limiting component to reciprocate along the slide seat, and the moving direction is perpendicular to the moving direction of the wide and thick plate. In this way, when the wide and thick plate moves towards the outlet of the slitting shear, it will pass through the moving path of the limiting component. When the limiting component reciprocates along the slide seat, it can move towards the side wall of the wide and thick plate, so as to provide side limiting for the wide and thick plate. When the tail of the wide and thick plate leaves the inlet pinch rolls and is in a free state, it provides limiting for the wide and thick plate along the direction perpendicular to the moving direction of the wide and thick plate, so as to avoid the position deviation of the wide and thick plate under the action of the shearing force when the shearing force acts on the wide and thick plate, and ensure the notch quality of the wide and thick plate; specifically, a control mechanism is also provided. The control mechanism is electrically connected to the driving mechanism. When the tail of the wide and thick plate leaves the inlet pinch rolls, the control mechanism can drive the limiting component to move towards the side wall of the wide and thick plate through the driving mechanism, so as to fit against the side wall of the wide and thick plate, and realize the determination of the position where the side wall of the wide and thick plate is located. At this time, the driving mechanism continues to drive the limiting component to move away from the side wall of the wide and thick plate, so that a preset distance is maintained between the limiting component and the side wall of the wide and thick plate. In this way, when the wide and thick plate is subjected to the shearing force, an extrusion force perpendicular to the shearing direction will appear. At this time, the preset distance is maintained between the limiting component and the side wall of the wide and thick plate, which not only avoids the extrusion between the limiting component and the side wall of the wide and thick plate under the action of the extrusion force, resulting in deformation and damage of the limiting component or the wide and thick plate, but also leaves a margin for the movement of the wide and thick plate under the action of the extrusion force by maintaining the preset distance, ensuring that the side wall of the wide and thick plate fits against the limiting component after moving under the action of the extrusion force, ensuring the limiting of the side wall of the wide and thick plate by the limiting component, and thus ensuring the position stability of the wide and thick plate under the action of the shearing force to ensure the notch quality of the wide and thick plate; in addition, when the tail of the wide and thick plate passes through the outlet of the slitting shear, the control mechanism can control the driving mechanism to drive the limiting component to reset, so as to facilitate the slitting shear process of the next wide and thick plate.

[0015] Optionally, a sliding groove is provided on the slide seat, and the sliding groove is arranged in a direction perpendicular to the moving direction of the wide and thick plate. The limiting assembly includes a limiting block and a frame. The frame is slidably installed in the sliding groove and is connected to the driving mechanism. The limiting block is detachably installed on the frame and is used to fit with the side wall of the wide and thick plate.

[0016] Optionally, the limit block is a cylinder, the central axis of the limit block is perpendicular to the moving direction of the wide and thick plate, the limit block is rotatably installed on the frame around the central axis, and the circumferential surface of the limit block is used to fit with the side wall of the wide and thick plate.

[0017] Optionally, the limiting assembly further includes a guide wheel, which is mounted on the vehicle frame, and the side wall of the sliding groove is provided with a guide groove, and the guide wheel is located in the guide groove.

[0018] Optionally, the limiting device further includes an anti-collision block, which is mounted on the limiting assembly and located on a side of the limiting assembly away from the moving direction of the wide and thick plate.

[0019] Optionally, the driving mechanism includes a first telescopic driving member and a second telescopic driving member, the first telescopic driving member is drivingly connected to the limit assembly through the second telescopic driving member, and the first telescopic driving member and the second telescopic driving member are both electrically connected to the control mechanism, and the control mechanism is used to:

[0020] When the tail of the thick and wide plate leaves the entrance pinch roller, controlling the first telescopic driving member to extend, driving the limiting assembly to move toward the side wall of the thick and wide plate;

[0021] When the limiting assembly moves to fit the side wall of the thick plate, the first telescopic driving member is controlled to be stationary, the second telescopic driving member is controlled to be shortened, the limiting assembly is driven to move away from the side wall of the thick plate by the preset distance, and the second telescopic driving member is controlled to be stationary;

[0022] When the tail of the thick and wide plate passes through the splitting shear outlet, the first telescopic driving member is controlled to shorten, the second telescopic driving member is controlled to extend, and the limit assembly is driven to reset.

[0023] Optionally, the driving mechanism also includes a brake, which is connected to the first telescopic driving member and electrically connected to the control mechanism. The control mechanism is used to lock the first telescopic driving member through the brake when the limiting assembly moves to fit the side wall of the wide and thick plate.

[0024] On the other hand, the present invention further provides a slitting shear, which includes an inlet pinch roll, a slitting shear outlet, and the limiting device as described above, and further includes a frame. The limiting device is installed on the frame, and the frame is used to reciprocate along the moving direction of the limiting component of the limiting device.

[0025] Compared with the prior art, the slitting shear of the present invention has the same beneficial effects as the limiting device described above, which will not be elaborated here.

[0026] Optionally, the slitting shear further includes a lifting roller table, which is installed on the frame and is located between the limiting device and the slitting shear inlet of the frame.

[0027] On yet another aspect, the present invention further provides a working method of a slitting shear, which is applied to the slitting shear as described above. The working method of the slitting shear includes:

[0028] When the tail of the wide and thick plate leaves the inlet pinch roll, the limiting component is driven by a driving mechanism to move towards the side wall of the wide and thick plate;

[0029] When the limiting component moves to fit with the side wall of the wide and thick plate, the limiting component is driven by the driving mechanism to move a preset distance away from the side wall of the wide and thick plate and keep the limiting component stationary;

[0030] When the tail of the wide and thick plate passes through the slitting shear outlet, the limiting component is driven by the driving mechanism to reset.

[0031] Compared with the prior art, the working method of the slitting shear of the present invention has the same beneficial effects as the slitting shear described above, which will not be elaborated here. Description of the Drawings

[0032] Figure 1 It is a partial structural schematic diagram of the slitting shear in an embodiment of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the limiting device in an embodiment of the present invention;

[0034] Figure 3 For Figure 2 an enlarged schematic diagram of A shown in

[0035] Figure 4 It is a structural schematic diagram of the limiting component in an embodiment of the present invention;

[0036] Figure 5 It is a flowchart of the working method of the slitting shear in an embodiment of the present invention.

[0037] Description of the Reference Numerals:

[0038] 1 - Slide base; 11 - Sliding groove; 12 - Guide groove; 13 - Base; 14 - Fixed seat; 2 - Limit assembly; 21 - Limit block; 22 - Frame; 23 - Guide wheel; 3 - Driving mechanism; 31 - First telescopic driving member; 32 - Second telescopic driving member; 33 - Brake; 4 - Anti - collision block; 5 - Frame; 51 - Lower frame body on the entrance side; 52 - Upper frame body on the exit side; 53 - Lower frame body on the exit side; 54 - Large cross - beam; 6 - Lifting roller table; 7 - Lower shearing table. Detailed implementation manners

[0039] To make the above - mentioned objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings.

[0040] It should be noted that in the coordinate system XYZ provided in this article, the positive direction of the X - axis represents the right side, the negative direction of the X - axis represents the left side, the positive direction of the Y - axis represents the rear side, the negative direction of the Y - axis represents the front side, the positive direction of the Z - axis represents the upper side, and the negative direction of the Z - axis represents the lower side. At the same time, it should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above - mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here.

[0041] On the one hand, an embodiment of the present invention provides a limiting device, including: a slide base 1, the slide base 1 is used to be installed on a splitting shear and is located between the entrance pinch rolls of the splitting shear and the splitting shear exit; a limit assembly 2, the limit assembly 2 is slidably installed on the slide base 1; a driving mechanism 3, the driving mechanism 3 is drivingly connected to the limit assembly 2, the driving mechanism 3 is used to drive the limit assembly 2 to reciprocate along the slide base 1, and the moving direction of the limit assembly 2 is perpendicular to the moving direction of the wide and thick plate; a control mechanism, the control mechanism is electrically connected to the driving mechanism 3, and the control mechanism is used for: when the tail of the wide and thick plate leaves the entrance pinch rolls, driving the limit assembly 2 to move towards the side wall of the wide and thick plate through the driving mechanism 3; when the limit assembly 2 moves to fit with the side wall of the wide and thick plate, driving the limit assembly 2 to move a preset distance away from the side wall of the wide and thick plate through the driving mechanism 3 and keeping the limit assembly 2 stationary; when the tail of the wide and thick plate passes through the splitting shear exit, driving the limit assembly 2 to reset through the driving mechanism 3.

[0042] It should be noted that in this embodiment, as Figure 1 shown, the entrance pinch rolls of the splitting shear and the splitting shear exit are spaced along the positive direction of the X - axis. The moving direction of the wide and thick plate is the rolling direction of the splitting shear, which is also the shearing direction of the wide and thick plate, that is, the positive direction of the X - axis. The side walls of the wide and thick plate are the two opposite side walls along the Y - axis direction.

[0043] In this embodiment, asFigure 1 As shown in the figure, a slide seat 1 that can be installed on the splitting shear is provided between the entrance pinch rolls of the splitting shear and the exit of the splitting shear. A limiting component 2 is slidably installed on the slide seat 1, and a driving mechanism 3 that is drivingly connected to the limiting component 2 is provided at the same time. The driving mechanism can drive the limiting component 2 to reciprocate along the slide seat 1, and the moving direction is perpendicular to the moving direction of the wide and thick plate. In this way, when the wide and thick plate moves towards the exit of the splitting shear, the moving path of the wide and thick plate will intersect with the moving path of the limiting component 2, that is, the limiting component 2 can move towards the side wall of the wide and thick plate. When the tail of the wide and thick plate leaves the entrance pinch rolls and is in a free state, the limiting component 2 can provide a limit for the wide and thick plate along the direction perpendicular to the moving direction of the wide and thick plate, so as to avoid the position deviation of the wide and thick plate under the action of the shearing force and ensure the cutting quality of the wide and thick plate. Specifically, a control mechanism is also provided. The control mechanism is electrically connected to the driving mechanism 3. When the tail of the wide and thick plate leaves the entrance pinch rolls, the control mechanism can drive the limiting component 2 to move towards the side wall of the wide and thick plate through the driving mechanism 3, so as to fit with the side wall of the wide and thick plate, realizing the determination of the position where the side wall of the wide and thick plate is located. At this time, the driving mechanism 3 continues to drive the limiting component 2 to move away from the side wall of the wide and thick plate, so that a preset distance is maintained between the limiting component 2 and the side wall of the wide and thick plate. In this way, when the wide and thick plate is subjected to the shearing force, an extrusion force perpendicular to the shearing direction will appear. At this time, the limiting component 2 and the side wall of the wide and thick plate maintain a preset distance, which not only avoids the extrusion between the limiting component 2 and the side wall of the wide and thick plate under the action of the extrusion force, resulting in deformation and damage of the limiting component 2 or the wide and thick plate, but also leaves a margin for the movement of the wide and thick plate under the action of the extrusion force by maintaining the preset distance, ensuring that the side wall of the wide and thick plate fits with the limiting component 2 after moving under the action of the extrusion force, avoiding the side wall of the wide and thick plate moving too far under the action of the extrusion force and causing position deviation, ensuring the limit of the limiting component 2 on the side wall of the wide and thick plate, and thus ensuring the position stability of the wide and thick plate under the action of the shearing force to ensure the cutting quality of the wide and thick plate.

[0044] In addition, when the tail of the wide and thick plate passes through the exit of the splitting shear, the control mechanism can control the driving mechanism 3 to drive the limiting component 2 to reset, so as to facilitate the splitting shear process of the next wide and thick plate.

[0045] It should be noted that in this embodiment, the preset distance is determined according to the thickness of the wide and thick plate to be sheared. This is because the thicker the wide and thick plate, the greater the displacement along the direction perpendicular to the shearing direction when it is sheared by the splitting shear, and correspondingly, the larger the preset distance is set. For example, for the splitting shear of a conventional wide and thick plate, the preset distance is set to 1 mm.

[0046] It should be noted that in this embodiment, sensors are provided at both the inlet pinch rolls of the slitting shear and the outlet of the slitting shear. The sensors are electrically connected to the control terminal of the slitting shear, and the control terminal is electrically connected to the control structure of the limiting device. Through the induction signals transmitted by the sensors, the control terminal can obtain whether the tail of the wide and thick plate has left the inlet pinch rolls and whether it has passed through the outlet of the slitting shear, so as to transmit signals to the control mechanism, facilitating the control mechanism to control the movement and limit or reset of the limiting component 2 through the driving mechanism 3. The movement and limit as well as the reset of the limiting component 2 are synchronized with the process of the slitting shear shearing the wide and thick plate. It only needs to transmit a start or reset signal from the control terminal to the control mechanism, thus not only ensuring the position stability during the shearing of the wide and thick plate, but also not increasing the overall processing time of the wide and thick plate slitting, and ensuring the working efficiency.

[0047] It should be noted that as Figure 1 and Figure 2 shown, in order to ensure the installation stability of the sliding seat 1, in this embodiment, a base 13 is further provided. Both ends of the base 13 are respectively connected to the frame 5 and the sliding seat 1 of the slitting shear through threaded connectors, which not only ensures the installation stability but also facilitates the loading, unloading, and maintenance of the limiting device. By way of example, the threaded connector is a screw.

[0048] It should be noted that as Figure 1 and Figure 2 shown, in order to ensure the installation stability of the driving mechanism 3, in this embodiment, a fixing seat 14 is further provided. The fixing seat 14 is installed on the frame 5, and the fixing seat 14 is connected to the fixed end of the driving mechanism 3 to ensure the stable transmission of the driving force to the limiting component 2.

[0049] It should be noted that as Figure 2 shown, in order to ensure the stability of the driving mechanism 3 transmitting the driving force and avoid damage to the limiting device caused by excessive driving force, in this embodiment, the fixed end of the driving mechanism 3 is hinged to the fixing seat 14, and the output end of the driving mechanism 3 is hinged to the limiting component 2. Through this flexible connection method of hinging, not only the stable transmission of the driving force is ensured, but also the situation where the structure is easily damaged due to excessive driving force in the case of rigid connection is avoided.

[0050] Optionally, a sliding groove 11 is provided on the sliding seat 1. The sliding groove 11 is arranged in a direction perpendicular to the moving direction of the wide and thick plate. The limiting component 2 includes a limiting block 21 and a frame 22. The frame 22 is slidably installed in the sliding groove 11 and is drivingly connected to the driving mechanism 3. The limiting block 21 is detachably installed on the frame 22 and is used to fit against the side wall of the wide and thick plate.

[0051] It should be noted that as Figure 2 shown, the sliding groove 11 is arranged along the Y-axis direction.

[0052] In this embodiment, in order to ensure that the path of the limiting component 2 remains stable when reciprocatingly moving along the sliding seat 1, as Figure 2 shown, a sliding groove 11 is provided on the sliding seat 1, and the sliding groove 11 is arranged in a direction perpendicular to the moving direction of the wide and thick plate; meanwhile, as Figure 4 shown, a limiting block 21 and a frame 22 are provided as the main structures of the limiting component 2. Among them, as Figure 3 shown, the frame 22 is slidably installed in the sliding groove 11 and is drivingly connected to the driving mechanism 3. The driving mechanism 3 can drive the frame 22 to reciprocatingly move along the sliding groove 11, and the limiting block 21 is detachably installed on the frame 22 and can be attached to the side wall of the wide and thick plate. In this way, the driving mechanism 3 can be used to drive the frame 22 to move along the sliding groove 11, so as to realize the movement of the limiting block 21 towards or away from the side wall of the wide and thick plate, thereby realizing the attachment or separation from the side wall of the wide and thick plate; in addition, the detachable connection between the limiting block 21 and the frame 22 enables the limiting block 21 located outside the sliding groove 11 to be detachably separated from the frame 22 under the support of the frame 22. The limiting block 21 connected to the frame 22 can be replaced in time according to the thickness of the wide and thick plate to be limited, which is convenient for limiting wide and thick plates of different thicknesses and improves the application range of the limiting device.

[0053] It should be noted that, as Figure 2 shown, in this embodiment, in order to ensure the stable sliding of the frame 22 in the sliding groove 11 without slipping, the cross-sectional shape of the frame 22 can be set to be the same as the cross-sectional shape of the sliding groove 11, so as to ensure that the part of the frame 22 located in the sliding groove 11 fits with the inner wall of the sliding groove 11, and further ensure the stability of the frame 22 when moving in the sliding groove 11.

[0054] It should be noted that, in this embodiment, the frame 22 is provided with an installation groove, the bottom surface of the limiting block 21 is provided with an installation block, the installation block is placed in the installation groove, and the installation block is provided with a threaded hole. The detachable connection between the installation block and the frame 22 is completed by passing a fixing screw penetrating into the frame 22 through the threaded hole.

[0055] Optionally, the limiting block 21 is a cylinder, the central axis of the limiting block 21 is perpendicular to the moving direction of the wide and thick plate, the limiting block 21 is rotatably installed on the frame 22 around the central axis, and the circumferential surface of the limiting block 21 is used to fit with the side wall of the wide and thick plate.

[0056] It should be noted that, in this embodiment, as Figure 2 and Figure 4 shown, the central axis of the limiting block 21 is arranged along the Z-axis direction.

[0057] As Figure 2 and Figure 4 shown, in this embodiment, in order to facilitate the stable movement of the wide and thick plate towards the splitting shear outlet, asFigure 2 As shown in the figure, the limiting block 21 is set as a cylinder. The central axis of the limiting block 21 is perpendicular to the moving direction of the wide and thick plate, and the circumferential surface of the limiting block 21 can be attached to the side wall of the wide and thick plate. In this way, since the side wall of the wide and thick plate is tangent to the circumferential surface, the contact area is small. Therefore, the limiting block 21 not only limits the wide and thick plate, but also avoids interference of the limiting block 21 on the movement of the wide and thick plate. On this basis, the limiting block 21 can be set to be rotatable, that is, the limiting block 21 is rotatably installed on the vehicle frame 22 around the central axis. When the side wall of the wide and thick plate is attached to the circumferential surface of the limiting block 21 and the wide and thick plate continues to move stably towards the cut-off shear outlet, the limiting block 21 can rotate under the action of friction, changing the sliding friction into rolling friction and avoiding adverse effects of the limiting block 21 on the movement of the wide and thick plate.

[0058] It should be noted that, in this embodiment, for example, the limiting block 21 is a guide roller.

[0059] It should be noted that, in other embodiments of the present invention, the limiting block 21 can also be set as other structures such as a prism.

[0060] Optionally, the limiting component 2 further includes a guide wheel 23. The guide wheel 23 is installed on the vehicle frame 22, and a guide groove 12 is provided on the side wall of the sliding groove 11. The guide wheel 23 is located in the guide groove 12.

[0061] In order to reduce the friction generated when the vehicle frame 22 moves along the sliding groove 11 and ensure stable and smooth movement of the limiting block 21, as Figure 4 shown, a guide wheel 23 is also installed on the vehicle frame 22. As Figure 3 shown, a guide groove 12 is provided on the side wall of the sliding groove 11, and the guide wheel 23 is placed in the guide groove 12. In this way, when the vehicle frame 22 moves along the sliding groove 11 under the driving action of the driving mechanism 3, the guide wheel 23 rolls in the guide groove 12, and the vehicle frame 22 is stably in the sliding groove 11 under the supporting action of the guide wheel 23 and does not contact the inner wall of the sliding groove 11. Thus, the friction generated when the vehicle frame 22 moves in the sliding groove 11 is changed from sliding friction to rolling friction, reducing the adverse effects of the friction on the movement of the vehicle frame 22.

[0062] It should be noted that, in this embodiment, in order to ensure the balance of the vehicle frame 22, guide wheels 23 are provided on both sides of the vehicle frame 22 in the direction perpendicular to the moving direction, that is, on one side of the vehicle frame 22 along the positive X-axis direction and on the other side along the negative X-axis direction. Correspondingly, the two guide grooves 12 are respectively provided on the two side walls of the sliding groove 11 along the X-axis direction; of course, on the same side of the vehicle frame 22, along the moving direction of the vehicle frame 22, that is, along the Y-axis direction, at least two guide wheels 23 are provided at intervals.

[0063] It should be noted that, in this embodiment, in order to ensure the stability of the vehicle frame 22 when moving in the sliding groove 11, asFigure 4 As shown, a first rotating wheel and a second rotating wheel with a structure similar to the guide wheel 23 are respectively provided on the upper end surface and the lower end surface of the frame 22. The circumferences of the first rotating wheel and the second rotating wheel are both in contact with the side walls of the sliding groove 11. When the frame 22 moves along the sliding groove 11, the first rotating wheel and the second rotating wheel rotate, thereby supporting the frame 22 and reducing the friction generated when the frame 22 moves.

[0064] Optionally, the limiting device further includes an anti-collision block 4, which is mounted on the limiting component 2 and is located on a side of the limiting component 2 away from the moving direction of the wide and thick plate.

[0065] When the thick and wide plate moves from the inlet pinch roller toward the splitting shear outlet, since the limit device is located between the inlet pinch roller and the splitting shear outlet, in order to avoid the limit component 2 from moving incorrectly or the end of the thick and wide plate colliding with the limit device when the width of the thick and wide plate is large, causing damage to the limit component 2, in this embodiment, as shown in FIG. Figure 1 and Figure 4 As shown, an anti-collision block 4 is provided on the side of the limiting component 2 that is away from the moving direction of the wide and thick plate, that is, on the side of the limiting component 2 opposite to the X-axis. In this way, if the wide and thick plate hits the limiting device, it will be blocked by the anti-collision block 4 and cannot directly hit the limiting component 2, thereby effectively protecting the limiting component 2.

[0066] Specifically, if Figure 4 As shown, in this embodiment, the two sides of the anti-collision block 4 along the moving direction of the limit component 2 are flush with the two sides of the limit component 2 along the moving direction or exceed the two sides of the limit component 2 along the moving direction, ensuring effective protection of the two sides of the limit component 2 along the moving direction; and the height of the anti-collision block 4 is equal to or greater than the height of the limit component 2, thereby protecting the upper end of the limit component 2; in addition, the thickness of the anti-collision block 4 gradually increases along the moving direction of the wide and thick plate, forming a guide slope. When the wide and thick plate hits the end of the anti-collision block 4 with a smaller thickness away from the limit component 2, it is lifted upward under the guidance of the guide slope to avoid the impact force being vertically transmitted to the limit component 2; on this basis, Figure 4 As shown, the limiting assembly 2 consists of a limiting block 21, a frame 22 and a guide wheel 23, wherein the anti-collision block 4 is installed on the frame 22, so that the limiting block 21 is away from the side of the moving direction of the wide and thick plate and is spaced apart from the limiting block 21, thereby avoiding the impact force of the wide and thick plate from being transmitted to the limiting block 21.

[0067] Optionally, the driving mechanism 3 includes a first telescopic driving member 31 and a second telescopic driving member 32. The first telescopic driving member 31 is drivingly connected to the limiting assembly 2 through the second telescopic driving member 32. Both the first telescopic driving member 31 and the second telescopic driving member 32 are electrically connected to the control mechanism. The control mechanism is configured to: when the tail of the wide and thick plate leaves the inlet pinch rolls, control the first telescopic driving member 31 to extend, driving the limiting assembly 2 to move towards the side wall of the wide and thick plate; when the limiting assembly 2 moves to fit against the side wall of the wide and thick plate, control the first telescopic driving member 31 to stop, control the second telescopic driving member 32 to shorten, driving the limiting assembly 2 to move away from the side wall of the wide and thick plate by a preset distance, and control the second telescopic driving member 32 to stop; when the tail of the wide and thick plate passes through the outlet of the slitting shear, control the first telescopic driving member 31 to shorten, control the second telescopic driving member 32 to extend, and drive the limiting assembly 2 to reset.

[0068] As Figure 1 and Figure 2 shown, in this embodiment, in order to ensure the accuracy of the position of the limiting assembly 2, the first telescopic driving member 31 and the second telescopic driving member 32 are provided as the power output mechanism of the driving mechanism 3. Among them, the first telescopic driving member 31 is drivingly connected to the limiting assembly 2 through the second telescopic driving member 32, and both the first telescopic driving member 31 and the second telescopic driving member 32 are electrically connected to the control mechanism. In this way, when it is necessary to drive the limiting assembly 2 to move to fit against the side wall of the wide and thick plate, the output end of the first telescopic driving member 31 can be controlled to extend, so as to transmit the power to the second telescopic driving member 32, and then push the limiting assembly 2 to move along the sliding seat 1 until it fits against the side wall of the wide and thick plate. After the limiting assembly 2 fits against the side wall of the wide and thick plate, the first telescopic driving member 31 is kept in a stationary state, while the output end of the second telescopic driving member 32 shortens, thereby driving the limiting assembly 2 to move along the sliding seat 1, separating from the side wall of the wide and thick plate, and until the distance is the preset distance, completing the positioning of the limiting assembly 2. In this way, through the first telescopic driving member 31 and the second telescopic driving member 32 respectively completing an extension and a shortening process, it is convenient to control the first telescopic driving member 31 and the second telescopic driving member 32 separately. The first telescopic driving member 31 only needs to keep outputting power until the limiting assembly 2 fits against the side wall of the wide and thick plate, and each time the second telescopic driving member 32 shortens, it only needs to work according to the pre-input preset distance value, which is convenient for automatic control of the work of the limiting device, and the work of the first telescopic driving member 31 and the second telescopic driving member 32 is single during the control process, which can effectively avoid the situation of large errors occurring when using one telescopic driving member to complete two telescopic processes, ensuring the accuracy of the position of the limiting assembly 2; in addition, when the tail of the wide and thick plate passes through the outlet of the slitting shear, the reset can be completed through the respective work of the first telescopic driving member 31 and the second telescopic driving member 32, which is convenient for driving the limiting assembly 2 next time.

[0069] It should be noted that in this embodiment, both the first telescopic driving member 31 and the second telescopic driving member 32 are hydraulic cylinders. The first telescopic driving member 31 is the main hydraulic cylinder, and the second telescopic driving member 32 is the clearance cylinder.

[0070] Optionally, the driving mechanism 3 further includes a brake 33. The brake 33 is connected to the first telescopic driving member 31, and the brake 33 is electrically connected to the control mechanism. The control mechanism is configured to: when the limiting component 2 moves to fit against the side wall of the wide and thick plate, lock the first telescopic driving member 31 through the brake 33.

[0071] In this embodiment, as Figure 2 shown, in order to ensure the stability of the first telescopic driving member 31 when it remains stationary and the stability of the fixed end of the second telescopic driving member 32, a brake 33 is further provided. The brake 33 is connected to the first telescopic driving member 31, and the brake 33 is electrically connected to the control mechanism. In this way, when the first telescopic driving member 31 remains stationary, the brake 33 can lock the output end of the first telescopic driving member 31, so that the output end of the first telescopic driving member 31 remains stationary. Under the support of the stationary first telescopic driving member 31, the stability of the fixed end of the second telescopic driving member 32 is also ensured, so that the shortening of the output end of the second telescopic driving member 32 can be carried out stably.

[0072] It should be noted that in this embodiment, as Figure 2 shown, the brake 33 is a main cylinder brake. In other embodiments of the present invention, a locking ring may also be provided as the brake 33 to be sleeved on the output end of the first telescopic driving member 31 and detachably connected to the slide seat 1 to complete the locking of the first telescopic driving member 31.

[0073] On the other hand, an embodiment of the present invention provides a slitting shear, including an inlet pinch roll, a slitting shear outlet, and the above-mentioned limiting device. It further includes a frame 5. The limiting device is installed on the frame 5, and the frame 5 is configured to reciprocate along the moving direction of the limiting component 2 of the limiting device.

[0074] It should be noted that the moving direction of the limiting component 2 is the Y-axis direction.

[0075] In this embodiment, as Figure 1As shown, the technical effect of the splitting shearing machine in this embodiment is similar to the technical effect of the above-mentioned limiting device. On this basis, a frame 5 is further provided on the splitting shearing machine, and the limiting device is installed on the frame 5. The frame 5 can move back and forth relative to the wide and thick plate along the moving direction of the limiting component 2, that is, the frame 5 is the moving side of the splitting shearing machine, and the limiting device is arranged on the moving side of the splitting shearing machine, so that the limiting device and the frame 5 can move synchronously. When the frame 5 moves with the change of the thickness of the wide and thick plate to be sheared, the limiting device can also move accordingly, ensuring that the limiting device limits the wide and thick plates of different widths and thicknesses, and improving the width range of the wide and thick plates applicable to the limiting device.

[0076] It should be noted that if Figure 1 As shown, the frame 5 is composed of an inlet side lower frame 51, an outlet side upper frame 52, an outlet side lower frame 53 and a large crossbeam 54, wherein the inlet side lower frame 51 and the inlet side upper frame not marked in the figure are connected to form a splitting shear inlet, and the inlet pinching roller is located between the splitting shear inlet and the limit device, the outlet side upper frame 52 and the outlet side lower frame 53 are connected to form a splitting shear outlet, and the outlet pinching roller is located on the side of the splitting shear outlet away from the limit device, and the two ends of the large crossbeam 54 are respectively connected to the inlet side lower frame 51 and the outlet side lower frame 53, so that the entire frame 5 forms a stable integrated structure, and the large crossbeam 54 is installed on the transverse slide, that is, on the hydrostatic guide rail. There is a hydrostatic oil film between the hydrostatic guide rail and the frame 5. Under the guiding action of the hydrostatic guide rail, the frame 5 can move back and forth along the moving direction of the limit assembly 2.

[0077] It should be noted that if Figure 1 As shown, a lower shearing platform 7 is provided between the inlet-side lower frame 51 and the outlet-side lower frame 53 . The lower shearing platform 7 moves with the frame 5 to facilitate positioning of the wide and thick plates at the position to be sheared.

[0078] It should be noted that if Figure 1 As shown, the slide 1 is installed on the large crossbeam 54 and is connected to the large crossbeam 54 and the outlet side lower frame 53 through the base 13, while the driving mechanism 3 is installed on the frame 5 through the fixed base 14.

[0079] Optionally, the splitting shearing machine further includes a lifting roller platform 6 , which is mounted on the frame 5 and is located between the limiting device and the splitting shearing inlet of the frame 5 .

[0080] The existing splitting shearing machine is provided with a lifting roller platform 6 between the inlet side lower frame 51 and the outlet side lower frame 53, which is used to drive the inlet pinch roller to clamp the thick plate. The lifting roller platform 6 is located close to the outlet side lower frame 53 and cannot be placed in the limiting device. In this embodiment, Figure 1As shown, to facilitate the installation of the limiting device, the lifting roller table 6 is adjusted to a position close to the lower frame body 51 on the inlet side, so as to form an installation space for the limiting device between the lifting roller table 6 and the lower frame body 53 on the outlet side. This not only does not affect the lifting roller table 6 to drive the inlet pinch rolls to clamp the wide and thick plate, but also facilitates the limiting device to limit the tail of the wide and thick plate after it disengages from the inlet pinch rolls.

[0081] On the other hand, an embodiment of the present invention provides a working method of a slitting shear, which is applied to the above-mentioned slitting shear. The working method of the slitting shear includes: when the tail of the wide and thick plate leaves the inlet pinch rolls, driving the limiting component 2 to move towards the side wall of the wide and thick plate through the driving mechanism 3; when the limiting component 2 moves to fit with the side wall of the wide and thick plate, driving the limiting component 2 to move a preset distance away from the side wall of the wide and thick plate through the driving mechanism 3 and keeping the limiting component 2 stationary; when the tail of the wide and thick plate passes through the slitting shear outlet, driving the limiting component 2 to reset through the driving mechanism 3.

[0082] As Figures 1 to 4 and Figure 5 shown in S1 to S3 in , the technical effects of the working method of the slitting shear in this embodiment are similar to those of the above-mentioned slitting shear, and will not be elaborated here.

[0083] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. A limiting device, characterized in that, include: A slide (1), the slide (1) being used for being mounted on a slitting shearing machine and being located between an inlet pinch roller and a slitting shearing outlet of the slitting shearing machine; A limiting assembly (2), wherein the limiting assembly (2) is slidably mounted on the slide seat (1); A driving mechanism (3), the driving mechanism (3) being drivingly connected to the limiting assembly (2), the driving mechanism (3) being used to drive the limiting assembly (2) to move back and forth along the slide (1), the moving direction of the limiting assembly (2) being perpendicular to the moving direction of the wide and thick plate; A control mechanism, the control mechanism being electrically connected to the drive mechanism (3), and the control mechanism being used for: When the tail of the thick and wide plate leaves the inlet pinch roller, the limiting assembly (2) is driven by the driving mechanism (3) to move toward the side wall of the thick and wide plate; When the limiting assembly (2) moves to fit the side wall of the thick and wide plate, the driving mechanism (3) drives the limiting assembly (2) to move away from the side wall of the thick and wide plate by a preset distance, and keeps the limiting assembly (2) stationary; When the tail of the wide and thick plate passes through the splitting shear outlet, the limiting assembly (2) is driven to reset by the driving mechanism (3).

2. The limit device according to claim 1, characterized in that, The slide seat (1) is provided with a sliding groove (11), and the sliding groove (11) is arranged in a direction perpendicular to the moving direction of the wide and thick plate. The limiting assembly (2) includes a limiting block (21) and a frame (22). The frame (22) is slidably installed in the sliding groove (11) and is connected to the driving mechanism (3). The limiting block (21) is detachably installed on the frame (22) and is used to fit with the side wall of the wide and thick plate.

3. The limit device according to claim 2, characterized in that, The limit block (21) is a cylinder, the central axis of the limit block (21) is perpendicular to the moving direction of the wide and thick plate, the limit block (21) is rotatably mounted on the vehicle frame (22) around the central axis, and the circumferential surface of the limit block (21) is used to fit with the side wall of the wide and thick plate.

4. The position-limiting device according to claim 3, characterized in that, The limiting assembly (2) further includes a guide wheel (23), the guide wheel (23) being mounted on the vehicle frame (22), the side wall of the sliding groove (11) being provided with a guide groove (12), and the guide wheel (23) being located in the guide groove (12).

5. The limit device according to any one of claims 1 to 4, characterized in that, It also includes an anti-collision block (4), which is installed on the limiting component (2) and is located on the side of the limiting component (2) away from the moving direction of the wide and thick plate.

6. The limiting device according to any one of claims 1 to 4, characterized in that The driving mechanism (3) comprises a first telescopic driving member (31) and a second telescopic driving member (32); the first telescopic driving member (31) is drivingly connected to the position limiting assembly (2) via the second telescopic driving member (32); the first telescopic driving member (31) and the second telescopic driving member (32) are both electrically connected to the control mechanism; and the control mechanism is used to: When the tail of the thick and wide plate leaves the inlet pinch roller, the first telescopic driving member (31) is controlled to extend, and the limiting assembly (2) is driven to move toward the side wall of the thick and wide plate; When the limiting component (2) moves to fit against the side wall of the wide and thick plate, control the first telescopic driving member (31) to stop, control the second telescopic driving member (32) to shorten, drive the limiting component (2) to move a preset distance away from the side wall of the wide and thick plate, and control the second telescopic driving member (32) to stop; When the tail of the wide and thick plate passes through the outlet of the slitting shear, control the first telescopic driving member (31) to shorten, control the second telescopic driving member (32) to extend, and drive the limiting component (2) to reset.

7. The limit device according to claim 6, characterized in that, The driving mechanism (3) further includes a brake (33). The brake (33) is connected to the first telescopic driving member (31), and the brake (33) is electrically connected to the control mechanism. The control mechanism is configured to: when the limiting component (2) moves to fit against the side wall of the wide and thick plate, lock the first telescopic driving member (31) through the brake (33).

8. A splitting shear, characterized in that, It includes an inlet pinch roll, an outlet of the slitting shear, and the limiting device according to any one of claims 1 to 7, and further includes a frame (5). The limiting device is installed on the frame (5), and the frame (5) is configured to reciprocate along the moving direction of the limiting component (2) of the limiting device.

9. The splitting shearing machine according to claim 8, characterized in that, It further includes a lifting roller table (6). The lifting roller table (6) is installed on the frame (5), and the lifting roller table (6) is located between the limiting device and the inlet of the slitting shear of the frame (5).

10. A working method of a splitting shear machine, characterized in that, Applied to the slitting shear according to claim 8 or 9, the working method of the slitting shear includes: When the tail of the wide and thick plate leaves the inlet pinch roll, drive the limiting component (2) to move towards the side wall of the wide and thick plate through the driving mechanism (3); When the limiting component (2) moves to fit against the side wall of the wide and thick plate, drive the limiting component (2) to move a preset distance away from the side wall of the wide and thick plate through the driving mechanism (3), and keep the limiting component (2) stationary; When the tail of the wide and thick plate passes through the outlet of the slitting shear, drive the limiting component (2) to reset through the driving mechanism (3).

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