Gantry hydraulic shearing device

Abstract

The present application relates to shearing device technical field, specifically disclose a gantry hydraulic shearing device, including length before and after extending the material conveying groove, the gantry frame is arranged in the material conveying groove discharge end, the hydraulic drive is installed on the gantry frame, the shearing cutter is assembled on the gantry frame and is connected the hydraulic drive output shaft and moves up and down, the clamp plate assembly is assembled on the gantry frame and moves up and down, the pressure material elastic component is connected between the hydraulic drive output shaft and the clamp plate assembly;The lower end of the clamp plate assembly has the pressure material surface for contacting the metal material, the pressure material elastic component is used to apply elastic force to the clamp plate assembly, so that the clamp plate assembly moves down to the pressure material surface below the shearing surface of the shearing cutter;The hydraulic drive is used to drive the shearing cutter and the clamp plate assembly synchronous descent, so that the pressure material surface of the clamp plate assembly contacts the metal material prior to the shearing surface of the shearing cutter.The gantry hydraulic shearing device can prolong the service life of the shearing cutter, improve the shearing quality.

Description

Technical Field

[0001] This invention relates to the field of shearing device technology, and specifically to a gantry hydraulic shearing device. Background Technology

[0002] Hydraulic power machinery, as a core component for power transmission and control in modern industry, is applied in various industrial fields such as engineering machinery and metallurgical equipment. It utilizes the pressure energy of a liquid medium to achieve the conversion and transmission of mechanical energy, featuring high efficiency, stability, and strong controllability. The gantry hydraulic shearing device, developed based on hydraulic power technology, uses a hydraulic system to drive a gantry frame structure to achieve large-tonnage, high-rigidity shearing operations, perfectly solving the problems of insufficient shearing force and low precision in the processing of thick plates and high-strength materials by traditional mechanical shearing equipment. This device is widely used in steel metallurgy, automobile manufacturing, scrap steel recycling, and other fields, efficiently completing the fixed-length shearing of metal sheets and profiles and scrap processing. Its high stability and high-precision shearing performance not only improves material utilization but also provides key equipment support for the automation and intelligent production of downstream manufacturing industries.

[0003] Existing gantry hydraulic shearing devices, such as the gantry shear disclosed in Chinese patent document CN222020738U, use guide columns that fit against the wall, the first baffle, and the second baffle to prevent twisting during shearing, which would reduce the shearing force and improve durability. This also provides wear resistance and extends service life. In addition, the blade holder's fit against the first baffle and the second baffle further prevents twisting of the blade holder.

[0004] However, in the above-mentioned gantry shears in the prior art, during the shearing process, the blade holder drives the blade head to descend rapidly under the drive of the shearing cylinder, and the blade head comes into direct contact with the metal material. Since the metal material has a certain strength and hardness, a strong impact force is generated at the moment the blade head comes into contact with the metal material, causing the blade head to be subjected to a large impact. Over time, this can easily lead to cracks and chipping of the blade head due to repeated impacts, affecting the service life of the blade head and the shearing quality. Summary of the Invention

[0005] This invention provides a gantry hydraulic shearing device, which aims to solve the problem in related technologies where the gantry shear head is damaged easily when shearing metal materials by rapidly descending.

[0006] The gantry hydraulic shearing device provided by this invention adopts the following technical solution: A gantry hydraulic shearing device includes a conveying trough extending longitudinally, a gantry frame disposed at the discharge end of the conveying trough, a hydraulic drive mounted on the gantry frame, and a shearing cutter mounted on the gantry frame and connected to the output shaft of the hydraulic drive. The gantry hydraulic shearing device also includes a pressure plate assembly mounted on the gantry frame and a pressing elastic element connected between the output shaft of the hydraulic drive and the pressure plate assembly. The lower end of the pressure plate assembly has a pressure surface for contacting metal materials, and the pressure elastic element is used to apply an elastic force to the pressure plate assembly so that the pressure plate assembly moves downward until the pressure surface is lower than the shearing surface of the shearing blade. The hydraulic actuator is used to drive the shearing cutter and the pressure plate assembly to descend synchronously, so that the pressure surface of the pressure plate assembly contacts the metal material before the shearing surface of the shearing cutter, and pushes the metal material downward, so that the metal material generates a downward moving speed before contacting the shearing surface of the shearing cutter, thereby reducing the relative speed difference between the two when the shearing surface of the shearing cutter contacts the metal material.

[0007] The above technical solution involves installing a pressure plate assembly on the gantry frame. This assembly is connected to the output shaft of a hydraulic drive via a pressure elastic element. The elastic element applies an elastic force to the pressure plate assembly, causing it to move downwards until the pressure surface is below the shearing surface of the shearing blade. When shearing of the metal material at the discharge end of the feed chute is required, the hydraulic drive is activated. The hydraulic drive, through its output shaft, drives the shearing blade and pressure plate assembly to descend synchronously, ensuring that the pressure surface of the pressure plate assembly contacts the metal material before the shearing surface of the shearing blade. The elastic element continuously applies vertical pressure to the metal material, forcing it to move downwards. This reduces the relative velocity difference between the shearing blade and the metal material when they contact the shearing surface. Because the relative velocity difference is reduced, the impact force on the shearing blade when it contacts the metal material is also reduced. This reduction in shearing impact effectively lowers the impact stress on the shearing blade, acting as a buffer and protecting it. It also reduces the likelihood of cracks or chipping caused by impact, extending the service life of the shearing blade and improving shearing quality.

[0008] Furthermore, the pressure plate assembly includes a pressure frame, a material plate mounted on the pressure frame that moves left and right, and a material driver set on the pressure frame and connected to the material plate. The material plate is located on the side of the shearing cutter facing the feed end of the feed chute. The lower end face of the material plate forms the pressure surface. The material driver is used to drive the material plate to move left and right reciprocally so that the pressure surface of the material plate contacts the metal material and then kneads the metal material left and right.

[0009] By adopting the above technical solution, when the material plate comes into contact with the metal material and moves left and right on the pressure frame, the lower end face of the material plate can knead the metal material left and right to sort and adjust the metal material, so that it is in a more suitable position and state before shearing. This helps to improve the accuracy and quality of shearing, ensures that the metal material can be accurately and neatly sheared, and avoids problems such as easy jamming or incomplete shearing caused by improper positioning of irregularly shaped metal materials (such as bent pipes, irregular parts, etc.).

[0010] Furthermore, the lower end face of the material plate has multiple raised edges distributed from left to right, and the corners of each raised edge are arc-shaped curved surfaces.

[0011] By employing the above technical solution, when the material plate kneads the metal material from side to side, the raised ridges at the lower end can make deeper contact with the metal material, generating a stronger squeezing and pushing effect. This more effectively flattens and organizes irregularly stacked or irregularly shaped metal materials, placing them in a more suitable position and state before shearing, thus improving the accuracy and quality of shearing. The arc-shaped curved edge design helps reduce friction during the kneading process, making the kneading action smoother.

[0012] Furthermore, a vibrating plate is elastically installed inside the material plate along the vertical direction, and the lower end of the vibrating plate can extend downwards to the outside of the material plate to beat the metal material.

[0013] By adopting the above technical solution, the impurities such as mud and sand carried on the surface of the metal material are knocked off, which helps to avoid the presence of mud and sand and other impurities from aggravating the dulling of the shearing blade. At the same time, the kneading action can more effectively organize the irregularly piled metal material into a looser and more even shape, so that the metal material is in a more suitable position and state before shearing, thereby further improving the accuracy and quality of shearing.

[0014] Furthermore, the pressure frame is provided with a left-right extending limiting groove, and the material plate has a limiting part that moves left and right and is assembled in the limiting groove. The limiting part extends upward to the outside of the limiting groove and extends back and forth to form an extension ear. Multiple pulleys are rotatably installed on the lower end face of the extension ear, and each pulley is placed on the pressure frame.

[0015] Using the above technical solution, the pulleys support the material plate and guide its movement direction during left and right movements, ensuring that the material plate can smoothly and accurately perform the left and right kneading action on the metal material. Furthermore, the rolling contact reduces the friction between the material plate and the pressure frame, making the left and right movement of the material plate smoother.

[0016] Furthermore, a vibration elastic element is installed between the vibrating plate and the material plate. The vibration elastic element is used to apply an elastic force to the vibrating plate so that the vibrating plate moves downward and extends out of the material plate.

[0017] Furthermore, the material handling driver includes a material handling motor mounted on the pressure frame, a drive gear disposed on the output shaft of the material handling motor, and a passive rack disposed on the material handling plate. The passive rack extends left and right and meshes with the drive gear to drive the material handling plate to move left and right under the push of the drive gear.

[0018] Furthermore, a dial is also provided on the output shaft of the material-forming motor, and a mating block that cooperates with the dial is installed on the vibrating plate. The dial includes a mounting ring fixed on the output shaft of the material-forming motor and a plurality of levers fixed on the mounting ring circumferentially. The mating block has an inclined mating surface, which is used to be pushed by the levers to move the mating block onto the vibrating plate into the material-forming plate.

[0019] Furthermore, the vibrating plate is provided with a sliding groove extending left and right, and the mating block is assembled in the sliding groove by moving left and right through the sliding part.

[0020] Furthermore, the pressure frame extends downwards on the side of the shearing cutter away from the feed end of the feed chute to form a protective plate.

[0021] Using the above technical solution, the protective plate is used to press the metal material from above, preventing the metal material from sliding or warping due to force during the shearing process, thus ensuring the accuracy and stability of the shearing. At the same time, it plays a protective role during the shearing process, blocking the metal fragments, splashes, and shards generated during shearing from spreading outward, thus protecting the safety of nearby equipment and operators.

[0022] The beneficial effects of the gantry hydraulic shearing device provided by the present invention are as follows: A pressure plate assembly is set on the gantry frame. The pressure plate assembly is connected to the output shaft of the hydraulic drive through a pressure elastic element. The pressure elastic element can apply an elastic force to the pressure plate assembly, so that the pressure plate assembly moves downward until the pressure surface is lower than the shearing surface of the shearing blade. When it is necessary to shear the metal material at the discharge end of the conveying trough, the hydraulic drive is started. The hydraulic drive drives the shearing blade and the pressure plate assembly to descend synchronously through the output shaft, so that the pressure surface of the pressure plate assembly contacts the metal material before the shearing surface of the shearing blade. The pressure elastic element continuously applies vertical pressure to the metal material, forcing the metal material to move downward, so that the metal material generates a downward moving speed before contacting the shearing surface of the shearing blade, thereby reducing the relative speed difference between the shearing blade and the metal material when the shearing surface of the shearing blade contacts the metal material. As the relative speed difference decreases, the impact force on the shearing tool when it comes into contact with the metal material also decreases. The reduction in shearing impact can effectively reduce the impact stress on the shearing tool, play a role in buffering and protecting the shearing tool, reduce the possibility of damage caused by cracks or chipping of the shearing tool due to impact, extend the service life of the shearing tool, and improve the shearing quality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the gantry hydraulic shearing device of the present invention.

[0024] Figure 2 This is a schematic diagram of the gantry hydraulic shearing device of the present invention from another perspective.

[0025] Figure 3 This is a schematic diagram of the pressure plate assembly of the gantry hydraulic shearing device of the present invention.

[0026] Figure 4 This is a schematic diagram of the pressure frame of the gantry hydraulic shearing device of the present invention.

[0027] Figure 5 This is a schematic diagram of the material-forming plate and the vibrating plate of the gantry hydraulic shearing device of the present invention.

[0028] Figure 6 This is a schematic diagram of the material handling driver of the gantry hydraulic shearing device of the present invention.

[0029] Figure 7 This is a schematic diagram of the material handling drive of the gantry hydraulic shearing device of the present invention from another perspective.

[0030] Figure 8 This is a schematic diagram of the structure of the mating block of the gantry hydraulic shearing device of the present invention.

[0031] Figure label: 10. Feed chute; 20. Gantry frame; 30. Hydraulic actuator; 40. Shearing blade; 410. Blade holder; 420. Replacement blade head; 50. Pressure plate assembly; 510. Pressure frame; 511. Limiting groove; 520. Material setter plate; 521. Raised ridge; 522. Limiting part; 523. Extending ear; 524. Pulley; 525. Opening; 530. Material setter actuator; 531. Material setter motor; 532. Drive gear; 533. Driven rack; 534. Mounting ring; 535. Lever; 536. Mating block; 537. Sliding part; 540. Vibrating plate; 541. Sliding groove; 550. Vibrating elastic element; 560. Protective plate; 60. Pressing elastic element; 70. Mating blade. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] like Figures 1 to 8 As shown, and refer to Figure 1As shown in the diagram, an embodiment of the gantry hydraulic shearing device of the present invention includes a material conveying trough 10, a gantry frame 20, a hydraulic driver 30, a shearing cutter 40, a pressure plate assembly 50, a pressure elastic element 60, and a cooperating cutter 70.

[0034] The conveying trough 10 is elongated, extending longitudinally and laterally, and laterally and laterally, used to store and convey metal materials to be sheared. The front end of the conveying trough 10 is the inlet end, and the rear end is the outlet end. The gantry frame 20 is fixedly installed on the outlet end of the conveying trough 10. The gantry frame 20 is composed of left and right columns and crossbeams connecting the left and right columns, forming a stable frame that provides support and installation foundation for the hydraulic actuator 30, shearing blade 40, and pressure plate assembly 50. The hydraulic actuator 30 is fixedly installed on the gantry frame 20. The hydraulic actuator 30 is the main power actuation component of the gantry hydraulic shearing device, including two or more hydraulic cylinders, responsible for driving the shearing blade 40 to move up and down, realizing the shearing of metal materials. The shearing process involves a shearing blade 40 mounted on the gantry frame 20, which moves up and down and is fixedly connected to the output shaft of the hydraulic drive 30. Driven by the hydraulic drive 30, it performs the shearing operation on the metal material. The lower surface of the shearing blade 40 forms the shearing surface, which is the key part that directly contacts the metal material and performs the shearing. The pressure plate assembly 50 is mounted on the gantry frame 20, which moves up and down and is used to push and arrange the metal material. The pressure elastic element 60 is connected between the output shaft of the hydraulic drive 30 and the pressure plate assembly 50 to provide elastic support for the pressure plate assembly 50. The cooperating blade 70 is fixedly installed on the gantry frame 20 and located below the shearing blade 40 to cooperate with the shearing blade 40 in performing the shearing of the metal material.

[0035] like Figure 2 As shown, the shearing cutter 40 includes a mounting holder 410 fixed to the output shaft of the hydraulic driver 30 and a replacement cutter head 420 detachably mounted on the mounting holder 410. The lower surface of the replacement cutter head 420 forms a shearing surface. In this embodiment, the replacement cutter head 420 is fixedly mounted on the mounting holder 410 with bolts, which is secure, reliable, and easy to disassemble. In other embodiments, the replacement cutter head 420 and the mounting holder 410 can also be connected by a detachable connection method such as a pin connection or a key connection, and are not limited thereto.

[0036] like Figures 1 to 3 As shown, the pressure plate assembly 50 includes a pressure frame 510 that moves up and down and is mounted on the gantry frame 20, a material setter 520 that moves left and right and is mounted on the pressure frame 510, a material setter driver 530 that is mounted on the pressure frame 510, a vibrating plate 540 that moves up and down and is mounted inside the material setter 520, and a vibrating elastic member 550 that connects the material setter 520 and the vibrating plate 540.

[0037] like Figures 1 to 4As shown, the pressure frame 510 is located above the shearing cutter 40, and extends downwards from the side of the shearing cutter 40 away from the feed end of the conveyor trough 10 to form a protective plate 560. The protective plate 560 is used to press the metal material from above, preventing the metal material from sliding or warping due to force during the shearing process, ensuring the accuracy and stability of the shearing; at the same time, it plays a protective role during the shearing process, preventing metal chips, splashes, and fragments generated during shearing from spreading outwards, protecting the safety of nearby equipment and operators. The output shaft of the hydraulic drive 30 passes downwards through the shaft hole opened on the pressure frame 510 and connects to the shearing cutter 40. The pressure frame 510 has a left-right extending limiting groove 511 on the side of the shearing cutter 40 near the feed end of the conveyor trough 10.

[0038] The forming plate 520 is located on the side of the shearing cutter 40 facing the feed end of the feed trough 10. The lower end face of the forming plate 520 forms a pressing surface, which is used to contact the metal material.

[0039] The pressure spring 60 is connected between the upper surface of the pressure frame 510 and the output shaft of the hydraulic drive 30. Of course, the pressure spring 60 can also be a spring or other elastic component, and is not limited thereto. The pressure spring 60 applies an elastic force to the pressure frame 510, causing the pressure frame 510 to move the pressure plate assembly 50 downwards until the pressure surface is below the shearing surface of the shearing blade 40.

[0040] When it is necessary to shear the metal material at the discharge end of the feed trough 10, the hydraulic drive 30 is activated. The hydraulic drive 30 drives the shearing cutter 40 and the pressure plate assembly 50 to descend synchronously through the output shaft, so that the pressure surface of the pressure plate assembly 50 contacts the metal material before the shearing surface of the shearing cutter 40. The pressure elastic element 60 continuously applies vertical pressure to the metal material, forcing the metal material to move downward. This causes the metal material to have a downward moving speed before contacting the shearing surface of the shearing cutter 40, thereby reducing the relative speed difference between the shearing cutter 40 and the metal material when the shearing surface of the shearing cutter 40 contacts the metal material. As the relative speed difference decreases, the impact force on the shearing cutter 40 when it contacts the metal material also decreases. The reduction in shearing impact can effectively reduce the impact stress on the shearing cutter 40, playing a role in buffering and protecting the shearing cutter 40, reducing the possibility of damage caused by cracks or chipping of the shearing cutter 40 due to impact, extending the service life of the shearing cutter 40, and improving the shearing quality.

[0041] like Figure 3 and Figure 5As shown, the forming plate 520 has a limiting part 522 that moves left and right within the limiting groove 511. The limiting part 522 extends upward beyond the limiting groove 511 and extends back and forth to form an extension ear 523, so that the forming plate 520 can move left and right on the pressure frame 510, and the pressure frame 510 can drive the forming plate 520 to move up and down synchronously. After the forming plate 520 contacts the metal material and moves left and right on the pressure frame 510, the lower end face of the forming plate 520 can knead the metal material left and right to sort and adjust the metal material, so that it is in a more suitable position and state before shearing. This is beneficial to improving the accuracy and quality of shearing, ensuring that the metal material can be accurately and neatly sheared, and avoiding problems such as easy jamming or incomplete shearing caused by improper positioning of irregularly shaped metal materials (such as bent pipes, irregular parts, etc.).

[0042] Multiple pulleys 524 are rotatably mounted on the lower end face of the extended ear 523. Each pulley 524 is placed on the pressure frame 510 to support the material plate 520 and guide the movement direction of the material plate 520 during left and right movement. This ensures that the material plate 520 can smoothly and accurately perform the left and right kneading action of the metal material. Furthermore, the rolling contact reduces the friction between the material plate 520 and the pressure frame 510, making the left and right movement of the material plate 520 smoother.

[0043] The lower end face of the forming plate 520 has multiple raised ridges 521 distributed from left to right, and the corners of each raised ridge 521 are all arc-shaped curved surfaces. When the forming plate 520 kneads the metal material from left to right, the raised ridges 521 at the lower end can make deeper contact with the metal material, generating a stronger squeezing and pushing effect, thereby more effectively smoothing irregularly stacked or irregularly shaped metal materials into a flatter and more regular shape, placing them in a more suitable position and state before shearing, improving the accuracy and quality of shearing. The arc-shaped curved corner design helps reduce friction during the kneading process, making the kneading action smoother.

[0044] like Figure 3 and Figure 5 As shown, the vibrating plate 540 is elastically installed inside the material preparation plate 520 in the vertical direction. The lower end of the vibrating plate 540 can extend downwards to the outside of the material preparation plate 520 to beat the metal material, knocking off the mud and sand and other impurities carried on the surface of the metal material. This helps to avoid the presence of mud and sand and other impurities from aggravating the dulling of the shearing blade 40. At the same time, in conjunction with the kneading action, it can more effectively organize the irregularly piled metal material into a looser and flatter shape, so that the metal material is in a more suitable position and state before shearing, further improving the accuracy and quality of shearing.

[0045] A vibratory elastic element 550 is installed between the vibrating plate 540 and the settling plate 520. The vibratory elastic element 550 is used to apply an elastic force to the vibrating plate 540, causing the vibrating plate 540 to move downward and extend beyond the settling plate 520. In this embodiment, the vibratory elastic element 550 is a spring. In other embodiments, the vibratory elastic element 550 may also be a spring or other elastic component, and is not limited thereto.

[0046] like Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, the material handling driver 530 is used to drive the material handling plate 520 to move back and forth left and right and the vibrating plate 540 to move back and forth up and down, so that the pressing surface of the material handling plate 520 contacts the metal material and then rubs the metal material left and right, and the vibrating plate 540 vibrates and pats the metal material up and down.

[0047] The material handling driver 530 includes a material handling motor 531 mounted on the pressure frame 510, a drive gear 532 mounted on the output shaft of the material handling motor 531, a driven rack 533 mounted on the material handling plate 520, a dial mounted on the output shaft of the material handling motor 531, and a mating block 536 mounted on the vibrating plate 540 and cooperating with the dial.

[0048] The passive rack 533 extends to the left and right and meshes with the drive gear 532, so as to drive the whole material plate 520 to move left and right under the push of the drive gear 532.

[0049] The dial includes a mounting ring 534 fixed to the output shaft of the material-forming motor 531, and multiple levers 535 fixed circumferentially to the mounting ring 534. The material-forming plate 520 has an opening 525 on its side facing the dial for accommodating a mating block 536. The vibrating plate 540 has a sliding groove 541 extending laterally. The mating block 536 is mounted in the sliding groove 541 via a sliding part 537, allowing the mating block 536 to drive the vibrating plate 540 to move up and down, and the vibrating plate 540 to move laterally relative to the mating block 536 when the material-forming plate 520 moves laterally. The mating block 536 has an inclined mating surface, which is pushed by the levers 535 to move the mating block 536, causing the vibrating plate 540 to move upwards into the material-forming plate 520.

[0050] During the descent of the pressure plate assembly 50 driven by the hydraulic actuator 30, the material-forming motor 531 is activated. The output shaft of the material-forming motor 531 rotates alternately in both directions, driving the drive gear 532 and the dial to rotate alternately in both directions. The drive gear 532, through meshing, pushes the driven rack 533 to move back and forth, and the driven rack 533 drives the material-forming plate 520 to move back and forth, kneading the metal material. When the dial rotates forward, the lever 535 on the dial pushes the mating surface, causing the mating block 536 to move the vibrating plate 540 upward into the material-forming plate 520; when the dial rotates in reverse, the lever 535 on the dial disengages from the mating surface, and the vibrating plate 540, driven by the vibrating elastic element 550, moves downward and extends out of the material-forming plate 520 to beat the metal material.

[0051] Thus, in an embodiment of the gantry hydraulic shearing device of the present invention, a pressure plate assembly 50 is provided on the gantry frame 20. The pressure plate assembly 50 is connected to the output shaft of the hydraulic driver 30 through a pressing elastic member 60. The pressing elastic member 60 can apply an elastic force to the pressure plate assembly 50, so that the pressure plate assembly 50 moves downward until the pressing surface is lower than the shearing surface of the shearing blade 40. When it is necessary to shear the metal material at the discharge end of the conveying trough 10, the hydraulic driver 30 is activated. The hydraulic driver 30 drives the shearing blade 40 and the pressure plate assembly 50 to descend synchronously through the output shaft, so that the pressing surface of the pressure plate assembly 50 contacts the metal material before the shearing surface of the shearing blade 40. The pressing elastic member 60 continuously applies vertical pressure to the metal material, forcing the metal material to move downward, so that the metal material generates a downward moving speed before contacting the shearing surface of the shearing blade 40, thereby reducing the relative speed difference between the shearing blade 40 and the metal material when the shearing surface of the shearing blade 40 contacts the metal material. As the relative speed difference decreases, the impact force on the shearing tool 40 when it comes into contact with the metal material also decreases. The reduction in shearing impact can effectively reduce the impact stress on the shearing tool 40, play a role in buffering and protecting the shearing tool 40, reduce the possibility of damage caused by cracks or chipping of the shearing tool 40 due to impact, extend the service life of the shearing tool 40, and improve the shearing quality.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A gantry hydraulic shearing device, comprising a conveying trough extending longitudinally, a gantry frame disposed at the discharge end of the conveying trough, a hydraulic drive mounted on the gantry frame, and shearing cutters mounted vertically on the gantry frame and connected to the output shaft of the hydraulic drive, characterized in that, It also includes a pressure plate assembly that moves up and down on the gantry frame, and a pressure elastic element that connects the hydraulic drive output shaft and the pressure plate assembly; The lower end of the pressure plate assembly has a pressure surface for contacting metal materials; the pressure elastic element is used to apply elastic force to the pressure plate assembly, causing the pressure plate assembly to move downward until the pressure surface is lower than the shearing surface of the shearing blade. The hydraulic actuator is used to drive the shearing blade and the pressure plate assembly to descend synchronously, so that the pressure plate assembly's pressing surface contacts the metal material before the shearing surface of the shearing blade, and pushes the metal material downward, so that the metal material generates a downward moving speed before contacting the shearing surface of the shearing blade, reducing the relative speed difference between the two when the shearing surface of the shearing blade contacts the metal material; The pressure plate assembly includes a pressure frame, a material plate that is mounted on the pressure frame and moves left and right and is located on the side of the shearing cutter facing the feed end of the feed chute, and a material plate driver that is mounted on the pressure frame and connected to the material plate. The lower end face of the material plate forms a pressure surface. The material plate driver is used to drive the material plate to move left and right back and forth, so that the pressure surface of the material plate contacts the metal material and then kneads the metal material left and right. A vibrating plate is elastically installed inside the material plate along the vertical direction. A vibrating elastic element is installed between the vibrating plate and the material plate to apply elastic force to the vibrating plate, causing the vibrating plate to move downward. The lower end of the vibrating plate extends downward to the outside of the material plate to beat the metal material. The material handling driver includes a material handling motor mounted on a pressure frame, a drive gear and a dial on the output shaft of the material handling motor, and a driven rack on the material handling plate. The driven rack extends left and right and meshes with the drive gear to drive the material handling plate to move left and right under the drive gear. A mating block that cooperates with the dial is mounted on the vibrating plate. The dial includes a mounting ring fixed on the output shaft of the material handling motor and multiple levers fixed circumferentially on the mounting ring. The mating block has an inclined mating surface that is pushed by the levers to move the mating block onto the vibrating plate into the material handling plate.

2. The gantry hydraulic shearing device according to claim 1, characterized in that, The lower end face of the material plate has multiple raised edges distributed from left to right, and the corners of each raised edge are arc-shaped curved surfaces.

3. The gantry hydraulic shearing device according to claim 1, characterized in that, The pressure frame is provided with a left-right extending limiting groove. The material plate has a limiting part that moves left and right and is assembled in the limiting groove. The limiting part extends upward to the outside of the limiting groove and extends back and forth to form an extension ear. Multiple pulleys are rotatably installed on the lower end face of the extension ear, and each pulley is placed on the pressure frame.

4. A gantry hydraulic shearing device according to claim 1, characterized in that, The vibrating plate has a sliding groove extending to the left and right, and the mating block is assembled in the sliding groove by moving left and right through the sliding part.

5. A gantry hydraulic shearing device according to claim 1, characterized in that, The pressure frame extends downwards on the side of the shearing cutter away from the feed end of the feed chute to form a protective plate.

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