A scrap metal hydraulic shearing machine

Abstract

The utility model discloses a kind of waste metal hydraulic shearing machines, including rack, the rack top side is equipped with shearing opening, the shearing opening top is equipped with shearing assembly, the rack outer wall is fixedly installed with controller, the rack top is fixedly installed with pressure material assembly near shearing assembly, the rack is horizontally fixed with the supporting plate near pressure material assembly side, the supporting plate middle part is equipped with strip-shaped mouth, the supporting plate upper surface is slidably provided with push plate;The utility model is by setting by the driving assembly controlled step type push mechanism, improve the automation level of feeding and feeding;Specifically, operator only needs to place the waste metal to be sheared on the supporting plate of feeding end once, after that, after each shearing action is completed, driving assembly can accurately control push plate to move forward a preset feed distance, to automatically push material to next shearing station.

Description

Technical Field

[0001] This utility model relates to the field of scrap metal shearing technology, and in particular to a scrap metal hydraulic shearing machine. Background Technology

[0002] Hydraulic shearing machines for scrap metal are key pieces of equipment in the fields of scrap material recycling and metal processing. They are mainly used to shear large or irregularly shaped scrap metal such as steel sections, plates, and pipes into specifications that are easy to package, transport, and smelt. This equipment is widely used in the pre-processing stages of scrap steel recycling stations, dismantling plants, and metal smelting enterprises. Its operating efficiency and level of automation directly affect the overall processing capacity and operating costs of the production line.

[0003] Currently, common scrap metal hydraulic shearing machines mainly adopt a fixed worktable structure. The basic workflow is as follows: the operator manually moves the scrap metal to be sheared and places it on the worktable, and manually adjusts it to the predetermined shearing position; then, the upper pressure plate (or side pressure cylinder) of the equipment moves down to press and fix the material; next, the main hydraulic cylinder drives the moving blade to complete the shearing action; after shearing, the upper pressure plate needs to be lifted and reset first, and the operator then manually moves or flips the remaining material to the next shearing position, repeating the above cycle of "placement-pressing-shearing-lifting-moving".

[0004] Therefore, existing hydraulic shears for scrap metal have the following drawbacks: First, material conveying relies entirely on manual labor, resulting in low automation. Throughout the shearing process, the initial placement of material, the step-by-step movement after each shear, and the final removal of waste all require close-range manual operation. This not only involves high labor intensity and safety hazards but also makes it difficult to precisely control the step distance of manual material pushing, affecting the consistency of shearing specifications. Second, the auxiliary actions in the work cycle are redundant, and the process is not continuous. The pressing device must be fully raised after each shear to make room for manual material movement. This lifting action itself does not generate value but occupies valuable working time and interrupts the continuous shearing process. After the material is moved, the pressing device needs to be lowered and pressed again, further increasing the total time consumed in a single shearing cycle. These drawbacks collectively result in a low effective working time ratio and limited production efficiency of existing shearing equipment. Therefore, further improvements are needed. To this end, we propose a hydraulic shear for scrap metal. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a hydraulic shearing machine for scrap metal.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a hydraulic shearing machine for scrap metal, comprising a frame, a shearing opening on one side of the top of the frame, a shearing assembly installed on the top of the shearing opening, a controller fixedly installed on the outer wall of the frame, a pressing assembly fixedly installed on the top of the frame near the shearing assembly, a support plate horizontally fixed on the side of the frame near the pressing assembly, a strip-shaped opening in the middle of the support plate, a push plate slidably disposed on the upper surface of the support plate, and a drive assembly for driving the push plate to move laterally fixed on the lower surface of the support plate below the strip-shaped opening.

[0007] Furthermore, the shearing assembly includes a cutter hinged to the top sidewall of the shearing opening and a vertical frame fixed to the top side of the frame. A first hydraulic cylinder is hinged to the top of the vertical frame. The telescopic end of the first hydraulic cylinder is hinged to the middle of the cutter. The first hydraulic cylinder is electrically connected to the controller.

[0008] Furthermore, the pressing assembly includes a gantry frame fixed to the top of the machine frame, a second hydraulic cylinder fixed at the top center of the gantry frame, a wheel frame fixed at the bottom telescopic end of the second hydraulic cylinder, a pressure roller rotatably connected inside the wheel frame, and the second hydraulic cylinder electrically connected to the controller.

[0009] Furthermore, side plates are fixed on both sides of the tray.

[0010] Furthermore, the drive assembly includes a servo motor fixed to the lower surface of the tray, a lead screw fixed to the output end of the servo motor, a slide plate threaded onto the surface of the lead screw, the slide plate passing through the strip opening and slidably connected to the strip opening, the top of the slide plate being fixedly connected to the push plate, and the servo motor being electrically connected to the controller.

[0011] Furthermore, an end plate is fixed to the lower surface of the tray away from the servo motor, the lead screw is rotatably connected to the end plate through a bearing, and a laser distance sensor is fixed to the side of the end plate near the slide plate, and the laser distance sensor is electrically connected to the controller.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model improves the automation level of feeding and material handling by setting up a stepping pusher mechanism controlled by a drive component. Specifically, the operator only needs to place the scrap metal to be sheared on the pallet at the feed end once. After each shearing action, the drive component can precisely control the pusher to move forward a preset feed distance, thereby automatically pushing the material to the next shearing station. This design completely replaces the traditional process that relies on manual repeated handling, lifting, and positioning of materials, which not only greatly reduces labor intensity and safety hazards, but also achieves precise control of the feeding step distance, improves the consistency of shearing specifications, and makes the entire shearing process more convenient and efficient.

[0014] 2. The pressure roller in the material pressing assembly of this utility model remains in a downward pressing state after the initial material is pressed, and can rotate freely as the material is pushed. This structure eliminates the need to lift the entire pressing device during the stepping movement of the material, thereby eliminating the redundant steps of "pressing-lifting-moving-pressing again" in traditional equipment; the simplified work cycle directly connects to "continuous pressing-stepping feeding-continuous shearing", effectively reducing auxiliary action time and significantly improving the proportion of pure shearing operation time and overall work efficiency of the equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the entire utility model;

[0017] Figure 2 This is a partial cross-sectional view of the present invention;

[0018] Figure 3 This is a perspective view of the pressing component of this utility model.

[0019] The attached figures are labeled as follows:

[0020] 1. Frame; 2. Shearing inlet; 3. Shearing assembly; 31. Cutter; 32. Vertical frame; 33. First hydraulic cylinder; 4. Pressing assembly; 41. Gantry frame; 42. Second hydraulic cylinder; 43. Wheel frame; 44. Pressure roller; 5. Support plate; 51. Strip opening; 6. Side plate; 7. Push plate; 8. Drive assembly; 81. Servo motor; 82. Lead screw; 83. Slide plate; 9. End plate; 10. Laser distance sensor; 11. Controller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-3As shown, a scrap metal hydraulic shearing machine is disclosed, including a frame 1, a shearing port 2 is provided on one side of the top of the frame 1, a shearing assembly 3 is installed on the top of the shearing port 2, and a controller 11 is fixedly installed on the outer wall of the frame 1. The controller 11 adopts a SIMATIC KP1200 controller with screen (HMI+PLC integrated machine) and controls the operation of the shearing machine through the built-in program.

[0023] A pressing component 4 is fixedly installed on the top of the frame 1 near the shearing component 3. A support plate 5 is horizontally fixed on the side of the frame 1 near the pressing component 4. A strip-shaped opening 51 is opened in the middle of the support plate 5. A push plate 7 is slidably arranged on the upper surface of the support plate 5. A drive component 8 for driving the push plate 7 to move laterally is fixed on the lower surface of the support plate 5 and below the strip-shaped opening 51.

[0024] The shearing assembly 3 includes a cutter 31 hinged to the top side wall of the shearing port 2 and a vertical frame 32 fixed to the top side of the frame 1. A first hydraulic cylinder 33 is hinged to the top of the vertical frame 32. The telescopic end of the first hydraulic cylinder 33 is hinged to the middle of the cutter 31. The first hydraulic cylinder 33 is electrically connected to the controller 11.

[0025] The controller 11 activates the extension of the first hydraulic cylinder 33, which drives the cutter 31 to rotate downwards to shear the scrap metal below. After the shearing action is completed, the controller 11 controls the first hydraulic cylinder 33 to shorten, causing the cutter 31 to rotate upwards around the hinge point to reset.

[0026] The pressing assembly 4 includes a gantry frame 41 fixed to the top of the frame 1. A second hydraulic cylinder 42 is fixed at the middle of the top of the gantry frame 41. A wheel frame 43 is fixed at the bottom telescopic end of the second hydraulic cylinder 42. A pressure roller 44 is rotatably connected inside the wheel frame 43. The second hydraulic cylinder 42 is electrically connected to the controller 11.

[0027] During the pressing process, the controller 11 activates the extension of the second hydraulic cylinder 42, which in turn lowers the wheel frame 43 and the pressure roller 44. For different scrap metal materials, the controller 11 can control the extension stroke of the second hydraulic cylinder 42 to press scrap metal of different sizes. During pressing, the pressure roller 44 presses the scrap metal; rubber can be fixed to the surface of the pressure roller 44 for cushioning.

[0028] Side plates 6 are fixed on both sides of the pallet 5. When placing scrap metal on the surface of the pallet 5, the side plates 6 can be used to limit the scrap metal and prevent it from exceeding the shearing range on both sides.

[0029] The drive assembly 8 includes a servo motor 81 fixed to the lower surface of the tray 5. A lead screw 82 is fixed to the output end of the servo motor 81. A slide plate 83 is threaded onto the surface of the lead screw 82. The slide plate 83 passes through the strip opening 51 and is slidably connected to the strip opening 51. The top of the slide plate 83 is fixedly connected to the push plate 7. The servo motor 81 is electrically connected to the controller 11.

[0030] The servo motor 81 can be controlled to rotate forward or backward by the controller 11. After the servo motor 81 is started, it will drive the slide plate 83 to slide along the strip opening 51, thereby driving the push plate 7 to move. When the push plate 7 moves towards the shearing assembly 3, it can push the scrap metal on the surface of the pallet 5 to move along the bottom of the pressure roller 44 towards the shearing assembly 3.

[0031] An end plate 9 is fixed on the lower surface of the tray 5 away from the servo motor 81. The lead screw 82 is rotatably connected to the end plate 9 through a bearing. A laser distance sensor 10 is fixed on the side of the end plate 9 near the slide plate 83, and the laser distance sensor 10 is electrically connected to the controller 11.

[0032] The laser distance sensor 10 can monitor the distance between the slide plate 83 and the end plate 9 in real time. Each change in distance is the distance that the push plate 7 pushes the material to move. This distance can be preset by the controller 11. Therefore, the controller 11 controls the servo motor 81 to drive the lead screw 82 to rotate. After the push plate 7 pushes the material to move a specified distance, this distance is fed back to the controller by the laser distance sensor 10. After the preset distance is reached, the controller 11 controls the servo motor 81 to stop rotating. When the moving distance reaches the maximum limit, the controller 11 controls the servo motor 81 to reverse and drive the push plate 7 to reset.

[0033] In this embodiment, the electrical connection lines and control principles of the controller 11 for controlling the first hydraulic cylinder 33, the second hydraulic cylinder 42, and the servo motor 81 all adopt existing technologies, and will not be described in detail here.

[0034] Working principle: First, the operator places the scrap metal to be sheared on the pallet 5 and initially limits its position using the side plate 6. Then, the controller 11 controls the extension of the second hydraulic cylinder 42 of the pressing assembly 4, driving the wheel frame 43 and pressure roller 44 downwards to press the scrap metal material firmly onto the surface of the pallet 5. The pressure roller 44 can rotate under pressure. Next, the controller 11 activates the extension of the first hydraulic cylinder 33 of the shearing assembly 3, driving the cutter 31 to rotate downwards around the hinge point, shearing the material located at the shearing opening 2. After shearing is completed, the controller 11 controls the first hydraulic cylinder 33 to retract, causing the cutter 31 to rotate upwards and reset.

[0035] The automatic feeding stage then begins: The controller 11 starts the servo motor 81 of the drive assembly 8 to rotate forward according to the preset feed distance command. The servo motor 81 drives the lead screw 82 to rotate, causing the threaded slide plate 83 to slide along the slot 51 of the support plate 5 towards the shearing assembly 3. The slide plate 83 drives the push plate 7 on top of it to move synchronously. During the movement, the push plate 7 pushes the scrap metal material, which has been pressed by the pressure roller 44, towards the shearing slot 2. The laser distance sensor 10 monitors the distance change between the slide plate 83 and the end plate 9 in real time and feeds the signal back to the controller 11. When the moving distance reaches the preset value, the controller 11 controls the servo motor 81 to stop rotating, thus completing one precise step feeding cycle.

[0036] At this point, the material has been delivered to the new shearing position, and throughout the process, the pressure roller 44 continues to rotate under the push of the material, maintaining a downward pressure state without needing to be lifted. The controller 11 then restarts the first hydraulic cylinder 33 for the next shearing operation, and this cycle repeats, forming an automated work cycle of "continuous pressing - step feeding - continuous shearing". When the push plate 7 moves to the end of its stroke, the controller 11 can control the servo motor 81 to reverse, driving the push plate 7 back to the initial position, ready for the next batch of material to be continuously sheared.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hydraulic shearing machine for scrap metal, comprising a frame (1), wherein a shearing opening (2) is provided on one side of the top of the frame (1), a shearing assembly (3) is installed on the top of the shearing opening (2), and a controller (11) is fixedly installed on the outer wall of the frame (1), characterized in that: A pressing assembly (4) is fixedly installed on the top of the frame (1) near the shearing assembly (3). A support plate (5) is horizontally fixed on the side of the frame (1) near the pressing assembly (4). A strip-shaped opening (51) is opened in the middle of the support plate (5). A push plate (7) is slidably arranged on the upper surface of the support plate (5). A drive assembly (8) for driving the push plate (7) to move laterally is fixed on the lower surface of the support plate (5) and below the strip-shaped opening (51).

2. The hydraulic shearing machine for scrap metal according to claim 1, characterized in that: The shearing assembly (3) includes a cutter (31) hinged to the top side wall of the shearing opening (2) and a vertical frame (32) fixed to the top side of the frame (1). A first hydraulic cylinder (33) is hinged to the top of the vertical frame (32). The telescopic end of the first hydraulic cylinder (33) is hinged to the middle of the cutter (31). The first hydraulic cylinder (33) is electrically connected to the controller (11).

3. The hydraulic shearing machine for scrap metal according to claim 1, characterized in that: The pressing assembly (4) includes a gantry frame (41) fixed to the top of the frame (1). A second hydraulic cylinder (42) is fixed at the middle of the top of the gantry frame (41). A wheel frame (43) is fixed at the bottom telescopic end of the second hydraulic cylinder (42). A pressure roller (44) is rotatably connected inside the wheel frame (43). The second hydraulic cylinder (42) is electrically connected to the controller (11).

4. A hydraulic shearing machine for scrap metal according to claim 1, characterized in that: Side plates (6) are fixed on both sides of the tray (5).

5. A hydraulic shearing machine for scrap metal according to claim 1, characterized in that: The drive assembly (8) includes a servo motor (81) fixed to the lower surface of the tray (5). A lead screw (82) is fixed to the output end of the servo motor (81). A sliding plate (83) is threaded onto the surface of the lead screw (82). The sliding plate (83) passes through the slot (51) and is slidably connected to the slot (51). The top of the sliding plate (83) is fixedly connected to the push plate (7). The servo motor (81) is electrically connected to the controller (11).

6. A hydraulic shearing machine for scrap metal according to claim 5, characterized in that: An end plate (9) is fixed on the lower surface of the tray (5) away from the servo motor (81). The lead screw (82) is rotatably connected to the end plate (9) through a bearing. A laser distance sensor (10) is fixed on the side of the end plate (9) close to the slide plate (83), and the laser distance sensor (10) is electrically connected to the controller (11).

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