A device for replacing the blades of a disc shear.

Abstract

This invention discloses a device for replacing the blades of a disc shear, comprising a lower support and an upper support. A limiting outer ring is provided at the top of the lower support, and multiple limiting bolts are annularly threaded onto the side wall of the limiting outer ring. A nut is fixed to the lower part of the lower support, and a screw is threaded onto the nut. A support block for supporting the disc shear is provided at the top of the screw. A fixing rod is fixed in a groove on the outer side of the lower support, and a transmission mechanism is provided at the top of the fixing rod. This invention, through the coordinated use of a guide rod, a lead screw, and a motor, allows the motor to drive the lead screw to rotate, thereby moving the upper support up and down. During this process, the blades are separated from the main body of the disc shear. By replacing the previous manual disassembly of the disc shear blades with tool-based disassembly, the labor intensity of operators is reduced, the efficiency of blade replacement is improved, and safety hazards during the replacement process are eliminated.

Description

Technical Field

[0001] This invention relates to the field of disc shear blade replacement technology, and particularly to a device for replacing disc shear blades. Background Technology

[0002] In cross-cutting units, disc shears are only used for trimming the edges of strip steel. In slitting units, they can perform continuous longitudinal shearing of narrow and wide strip steel. They serve as both the longitudinal shearing of raw materials for cold-rolled strip steel and a key piece of equipment in cold-rolled strip steel slitting and rewinding production lines. The main function of galvanized disc shears is to trim excess width from the edges of strip steel, ensuring the strip steel reaches the predetermined width. Once the shear blade chipps or wears down after prolonged use, affecting the edge trimming quality, the disc shear blade needs to be replaced. The disc shear and pressure ring weigh approximately 50 kg, and after prolonged use, the gap between the blade and the cutter shaft becomes small, making manual disassembly difficult and posing a significant safety hazard, potentially leading to mechanical injury. Currently, common disc shear blade replacement devices typically use a single, integrated pull claw to hold the blade. Vibration during blade assembly and disassembly can easily damage the blade edge. Wear-out pull claws can also weaken the grip, causing vibration and further damaging the blade during assembly and disassembly, thus affecting its reusability. In addition, the pull claws only work when disassembling the shear blades. During installation, the shear blades still need to be manually pushed and moved, which is labor-intensive. There is no device for positioning the end face of the shear blades during installation, resulting in poor positioning of the shear blades after installation, which has certain drawbacks. Summary of the Invention

[0003] The main objective of this invention is to provide a device for replacing the blades of a disc shear, thereby addressing the technical problems raised in the background art.

[0004] To achieve the above objectives, the present invention proposes a device for replacing the blade of a disc shear, comprising a lower support and an upper support. The lower support is provided with a limiting outer ring at its top, and multiple limiting bolts are annularly screwed onto the side wall of the limiting outer ring. A nut is fixed to the lower part of the lower support, and a screw rod is screwed onto the nut. A support block for supporting the disc shear is provided at the top of the screw rod. A fixing rod is fixed in a groove opened on the outer side of the lower support, and a transmission mechanism is provided at the top of the fixing rod.

[0005] The transmission mechanism includes a guide rod and a lead screw. The lead screw is screwed to the lifting plate. A motor is connected to the bottom of the lead screw. The upper bracket is fixed in the middle of the lifting plate. A positioning seat is provided in the middle of the upper bracket. Two sets of movable clamping blocks are provided in the inner cavity of the positioning seat. A cylinder is connected to the side of the movable clamping block. A fixed groove and a movable groove are respectively opened on the side and bottom of the fixed rod. A hemispherical buckle is connected in the movable groove by a spring.

[0006] Optionally, the bottom of the lower bracket is provided with a support column, and the bottom of the support column is provided with a base.

[0007] Optionally, a rotating rod is fixed to the bottom of the screw.

[0008] Optionally, a stop block is provided at the top of the guide rod and the lead screw, and the guide rod is movably connected to the lifting plate.

[0009] Optionally, a friction plate is provided in the arc-shaped groove of the movable clamping block, and a pressure sensor is provided in the middle of the friction plate.

[0010] Optionally, the end of the hemispherical buckle is engaged in a slot at the top of the lower bracket.

[0011] Optionally, the movable end of the locking screw passes through both the locking hole and the fixing groove.

[0012] Optionally, the lower bracket has a locking hole on its side that mates with a locking screw.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the device for replacing the blade of the disc shear has a simple and reasonable structural design and strong practicality. By setting the nut, screw and rotating rod structure, the height of the support block can be adjusted by rotating the rotating rod, thereby adjusting the height of the disc shear accordingly to meet the processing requirements of workpieces of different heights.

[0014] By setting a limiting outer ring at the top of the lower support as a limiting mechanism, and setting multiple limiting bolts on the limiting outer ring, the main body of the disc shear is limited and fixed by the limiting bolts, thereby effectively fixing the lower mechanism of the disc shear in conjunction with the support block;

[0015] By setting a positioning seat inside the upper bracket, the two sets of moving clamps move closer together under the drive of the cylinder. The friction plate inside the moving clamps can fix the upper cutting edge of the disc shear. During this process, the pressure sensor can detect the pressure on the cutting edge, so that the user can confirm whether the clamping mechanism has effectively clamped the cutting edge.

[0016] By using a combination of guide rods, lead screws, and motors, the motor can drive the lead screw to rotate, thereby moving the upper support up and down. During this process, the shear blades are separated from the main body of the disc shears, enabling a quick disassembly process for the shear blades and solving the problem of manually removing the shear blades.

[0017] By setting up structures such as fixed grooves, movable grooves, springs, hemispherical buckles, locking holes, and locking screws, the fixed rods that are inserted into the grooves can be quickly fixed and disassembled. Therefore, it is convenient to separate the lower bracket from the upper bracket as a whole, which improves the disassembly and assembly efficiency of the device, facilitates equipment maintenance, and effectively reduces the cost of use.

[0018] By replacing the manual disassembly of the disc shear blades with the use of tools, the labor intensity of operators is reduced, the efficiency of blade replacement is improved, and safety hazards during the replacement process are eliminated. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the positioning seat of the present invention.

[0022] Figure 3 This is a schematic diagram of the installation structure of the fixing rod of the present invention;

[0023] Figure 4 This is a schematic diagram of the fixing rod structure of the present invention.

[0024] In the diagram: 1. Lower bracket, 11. Support column, 12. Base, 13. Limiting outer ring, 14. Nut, 15. Screw, 16. Rotating rod, 17. Support block, 18. Disc shear, 19. Limiting bolt, 2. Fixed rod, 21. Guide rod, 22. Lead screw, 23. Lifting plate, 24. Motor, 25. Stop block, 26. Upper bracket, 27. Positioning seat, 28. Moving clamp, 29. Friction plate, 3. Cylinder, 31. Pressure sensor, 32. Fixed groove, 33. Movable groove, 34. Spring, 35. Hemispherical buckle, 36. Locking hole, 37. Locking screw, 38. Groove. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0029] Example:

[0030] Please see Figure 1-4 This invention provides a technical solution: a device for replacing the blade of a disc shear, comprising a lower support 1 and an upper support 26. The lower support 1 is provided with a limiting outer ring 13 at its top, which is fixed to the lower support 1 in a ring shape. Multiple limiting bolts 19 are distributed in a ring-shaped screw on the side wall of the limiting outer ring 13. By rotating the limiting bolts 19, their movable ends abut against the outer side of the disc shear 18, thereby achieving the effect of constraining and fixing the disc shear 18. By setting the limiting outer ring 13 at the top of the lower support 1 as a limiting mechanism, and setting multiple limiting bolts 19 on the limiting outer ring 13, the main body of the disc shear 18 is limited and fixed by the limiting bolts 19, thereby effectively fixing the lower part of the disc shear mechanism in conjunction with the support block 17.

[0031] The lower part of the lower support 1 is fixed with a nut 14, and a screw 15 is screwed onto the nut 14. By setting the structure of nut 14, screw 15 and rotating rod 16, the height of the support block 17 can be adjusted by rotating the rotating rod 16, thereby adjusting the height of the disc shear 18 accordingly to meet the processing requirements of workpieces of different heights.

[0032] The top of the screw 15 is provided with a support block 17 for supporting the disc shear 18. Furthermore, in order to improve the positioning effect of the disc shear 18, an electric suction cup seat can be provided on the support block 17 so that the suction cup seat contacts the bottom plane of the disc shear 18. By activating the electric suction cup seat, a vacuum adsorption effect is formed to further fix the disc shear 18. The disc shear 18 to be replaced is placed on the support block 17. By rotating the rotating rod 16, the screw 15 is rotated to adjust the height of the support block 17, so that the main body of the disc shear 18 moves to the height of the limiting outer ring 13. At this time, the limiting bolt 19 is rotated to fix the disc shear 18. A fixing rod 2 is fixed in the groove 38 opened on the outer side of the lower bracket 1. A transmission mechanism is provided on the top of the fixing rod 2.

[0033] The transmission mechanism includes a guide rod 21 and a lead screw 22, which are arranged in parallel and connected to the circular hole and threaded hole on the lifting plate 23, respectively. The lead screw 22 is screwed to the lifting plate 23. A motor 24 is connected to the bottom of the lead screw 22. Specifically, the housing of the motor 24 is fixed on the corresponding fixing rod 2 on the lower side. The motor 24 is a forward and reverse motor and is connected to the power supply and switch through wires. The upper bracket 26 is fixed in the middle of the lifting plate 23. By setting the guide rod 21, lead screw 22, motor 24 and other structures in cooperation, the motor 24 can drive the lead screw 22 to rotate, thereby driving the upper bracket 26 to move up and down as a whole. In this process, the shear blade is separated from the main body of the disc shear 18, which can realize the quick disassembly process of the shear blade and solve the problem that it is difficult to remove the shear blade manually.

[0034] A positioning seat 27 is provided in the middle of the upper support 26. Two sets of movable clamping blocks 28 are provided in the inner cavity of the positioning seat 27. A cylinder 3 is connected to the side of the movable clamping block 28. When the cylinder 3 is activated, it pushes the movable clamping block 28 and the friction plate 29 to move to the outside of the scissor blade and clamp them. By setting the positioning seat 27 in the upper support 26, the two sets of movable clamping blocks 28 move closer to each other under the drive of the cylinder 3. Thus, the friction plate 29 on the inner side of the movable clamping block 28 can clamp and fix the upper part of the disc scissor. During this process, the pressure sensor 31 can detect the pressure on the scissor blade, so that the user can confirm whether the clamping mechanism has effectively clamped the scissor blade.

[0035] The fixed rod 2 has a fixed groove 32 and a movable groove 33 on its side and bottom, respectively. A hemispherical buckle 35 is connected to the movable groove 33 by a spring 34. The lower bracket 1 has a locking hole 36 on its side that mates with the locking screw 37. When assembling the upper bracket 26 and the lower bracket 1, the movable end of the fixed rod 2 is inserted into the groove 38 on the upper part of the lower bracket 1 from the top. At this time, under the action of the spring 34, the hemispherical buckle 35 is inserted into the groove of the lower bracket 1, and the locking hole 36 is aligned with the fixed groove 32. The fixed rod 2 is fixed by passing the locking screw 37 through the locking hole 36 and the fixed groove 32.

[0036] Optionally, the lower support 1 is provided with a support column 11 at its bottom, and a base 12 is provided at the bottom of the support column 11. The base 12 is fixed on the ground, and the lower support 1 is stably supported by the support column 11.

[0037] Optionally, a rotating rod 16 is fixed to the bottom of the screw 15, the rotating rod 16 is fixedly connected to the screw 15, and the surface of the rotating rod 16 is provided with anti-slip texture.

[0038] Optionally, the top ends of the guide rod 21 and the lead screw 22 are provided with a stop block 25, and the guide rod 21 is movably connected to the lifting plate 23.

[0039] Optionally, a friction plate 29 is provided in the arc-shaped groove of the movable clamping block 28. Specifically, the surface of the friction plate 29 is provided with several irregular anti-slip textures to improve the stability of the friction plate 29 when in contact with the disc shear 18 mechanism. A pressure sensor 31 is provided in the middle of the friction plate 29. Furthermore, the pressure sensor 31 is externally connected to a display, which allows the user to easily observe the real-time monitoring data of the pressure sensor 31. This enables the user to quickly perform subsequent replacement work after clamping and fixing, improving processing efficiency and bringing convenience to the user.

[0040] Optionally, the end of the hemispherical buckle 35 is engaged in the slot at the top of the lower bracket 1. The engagement form effectively ensures the connection stability of the fixing rod 2, thereby facilitating the installation and disassembly of the lower bracket 1 and the upper bracket 26.

[0041] After positioning and clamping are completed, the user reverses the motor 24, causing the clamping mechanism inside the positioning seat 27 to move the shear blade upwards, thereby separating the shear blade from the disc shear 18 and completing the disassembly process of the disc shear blade. By changing the previous manual disassembly of the disc shear blade to disassembly using tools, the labor intensity of the operator is reduced, the efficiency of blade replacement is improved, and safety hazards during the replacement process are eliminated.

[0042] Optionally, the movable end of the locking screw 37 passes through both the locking hole 36 and the fixing groove 32. By setting the fixing groove 32, the movable groove 33, the spring 34, the hemispherical buckle 35, the locking hole 36 and the locking screw 37, the fixing rod 2 inserted into the groove 38 can be quickly fixed and disassembled. Therefore, it is convenient to separate the lower bracket 1 and the upper bracket 26 as a whole, which improves the device.

[0043] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A device for replacing the blades of a disc shear, comprising a lower support (1) and an upper support (26), characterized in that: The lower support (1) is provided with a limiting outer ring (13) at the top. Multiple limiting bolts (19) are arranged in a ring on the side wall of the limiting outer ring (13) for fixing the main body of the disc shear (18). The lower support (1) is fixed with a nut (14), and a screw rod (15) is screwed onto the nut (14). The top of the screw rod (15) is provided with a support block (17) for supporting the disc shear (18), and the bottom of the screw rod (15) is fixed with a rotating rod (16) for adjusting the height of the support block (17). A fixing rod (2) is fixed in the groove (38) opened on the outer side of the lower bracket (1), and a transmission mechanism is provided on the top of the fixing rod (2). The transmission mechanism includes a guide rod (21) and a lead screw (22). The lead screw (22) is screwed to the lifting plate (23). The bottom of the lead screw (22) is connected to a motor (24). The upper bracket (26) is fixed in the middle of the lifting plate (23). The middle of the upper bracket (26) is provided with a positioning seat (27). The inner cavity of the positioning seat (27) is provided with two sets of moving clamps (28). The side of the moving clamps (28) is connected to a cylinder (3). The arc groove of the moving clamps (28) is provided with a friction plate (29). The middle of the friction plate (29) is provided with a pressure sensor (31). The fixed rod (2) has a fixed groove (32) and a movable groove (33) on its side and bottom, respectively. A hemispherical buckle (35) is connected to the movable groove (33) by a spring (34). The end of the hemispherical buckle (35) is engaged in the groove at the top of the lower bracket (1). The side of the lower bracket (1) has a locking hole (36) that cooperates with the locking screw (37). The movable end of the locking screw (37) passes through both the locking hole (36) and the fixed groove (32) to fix the fixed rod (2).

2. The device for replacing the blades of a disc shear according to claim 1, characterized in that: The bottom of the lower bracket (1) is provided with a support column (11), and the bottom of the support column (11) is provided with a base (12).

3. The device for replacing the blades of a disc shear according to claim 1, characterized in that: The top of the guide rod (21) and the lead screw (22) are provided with a stop block (25), and the guide rod (21) is movably connected to the lifting plate (23).

Images