Quick tool changing structure of galvanized sheet strip cutting machine

Abstract

The utility model provides a kind of quick tool changing structure of galvanized sheet bar shearing machine, comprising: main body frame, the inside of the main body frame is provided with several mutually inserted tool bit structure, the tool bit structure includes the tool holder slidingly connected in the inside of main body frame, the bottom of the tool holder is fixedly connected with shear tool bit.The utility model is provided with multiple tool bit structure in the inside of main body frame, when tool bit wears and needs to be replaced, can control electric telescopic rod to make it stretch, to remove the fixation of the lowermost tool bit structure, the lowermost tool bit structure is affected by gravity and slides down, each tool bit structure in the upper loses support and slides down synchronously, then start servo motor, make baffle rotate 180 degrees, baffle is far from the bottom end of guide rod, worn tool bit structure loses support, falls from the bottom of main body frame, so as to reach the effect of quick tool changing, keep tool bit precision, improve shearing efficiency and quality, facilitate user to use.

Description

Technical Field

[0001] This utility model relates to the field of galvanized coil processing, and in particular to a quick blade changing structure for a galvanized coil slitting and shearing machine. Background Technology

[0002] In modern industrial production, galvanized steel coils are widely used in construction, automobiles, and home appliances due to their excellent corrosion resistance and mechanical properties. Slitting machines, as the core equipment in galvanized steel coil processing, function to cut wide galvanized steel coils into several narrower coils as needed. During long-term production, the shearing heads need to be replaced periodically due to wear, and the efficiency of blade replacement and structural stability directly affect production efficiency and processing accuracy.

[0003] In production scenarios where frequent cutter head changes are required to adapt to different slitting needs, traditional cutter changing methods severely impact production progress. Furthermore, traditional cutter changing processes demand a high level of skill from operators; improper operation can affect the cutter head's installation accuracy, thereby impacting shearing quality.

[0004] Therefore, it is necessary to provide a quick-change blade structure for a galvanized coil slitting and shearing machine to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a quick blade changing structure for a galvanized coil slitting and shearing machine.

[0006] This utility model provides a quick-change blade structure for a galvanized coil slitting and shearing machine, comprising: a main frame, wherein a plurality of interlocking blade structures are arranged inside the main frame, each blade structure including a blade holder slidably connected inside the main frame, a shearing blade head fixedly connected to the bottom of the blade holder, side ear plates fixedly connected to both the left and right sides of the bottom of the blade holder, and the left side ear plate having a through-hole; ear plate grooves for cooperating with the side ear plates are formed on both the left and right sides of the top of the blade holder, and a blade head groove for cooperating with the shearing blade head is formed on the top of the blade holder; the surface of the side ear plate is in contact with the inner wall of the adjacent ear plate groove. The surface of the shearing head is inserted into the adjacent head slot. An electric telescopic rod is fixedly connected to the bottom left side of the main frame. A connecting plate is fixedly connected to the output end of the electric telescopic rod. A positioning rod is fixedly connected to the bottom right side of the connecting plate. The right end of the positioning rod passes through the interior of the main frame and is inserted into the positioning hole. A guide rod is fixedly connected to the right side of the main frame. A sliding sleeve is fixedly connected to the right side of the blade holder. The inner wall of the sliding sleeve is slidably connected to the surface of the guide rod. A servo motor is fixedly connected to the bottom right side of the main frame. A baffle is fixedly connected to the output end of the servo motor. The top of the baffle is in contact with the bottom end of the guide rod.

[0007] Preferably, a hydraulic cylinder is fixedly connected to the center of the bottom of the inner wall of the main frame, and a pressure plate is fixedly connected to the output end of the hydraulic cylinder. The bottom of the pressure plate is in contact with the top of the cutter head structure.

[0008] Preferably, a rubber plate is fixedly connected to the bottom of the pressure plate, and the bottom of the rubber plate is in contact with the top of the blade structure.

[0009] Preferably, telescopic support rods are fixedly connected to both the left and right sides of the top of the pressure plate, and the top of the telescopic support rods is fixedly connected to the top of the inner wall of the main frame.

[0010] Preferably, the left and right sides of the top of the main frame are fixedly connected with detachable mounting feet by bolts, and the left and right sides of the top of the main frame are provided with mounting grooves.

[0011] Preferably, T-shaped blocks are fixedly connected to the front and rear sides of the left and right sides of the tool holder, and T-shaped grooves that cooperate with the T-shaped blocks are opened on the front and rear sides of the left and right sides of the inner wall of the main frame. The surface of the T-shaped block is slidably connected to the inner wall of the T-shaped groove.

[0012] Compared with related technologies, the quick blade changing structure of the galvanized coil slitting shear provided by this utility model has the following advantages:

[0013] 1. This utility model incorporates multiple cutter head structures within the main frame. During operation, the main frame is connected to the output end of the shearing device. The lowest cutter head structure within the main frame cuts galvanized steel coils into strips. When the cutter head wears out and needs replacement, the electric telescopic rod extends, causing the connecting plate to move to the left. This movement moves the positioning rod to the left, disengaging it from the positioning hole and releasing the fixation on the lowest cutter head structure. The lowest cutter head structure then slides downwards under gravity, causing the upper cutter head structures to lose support and slide downwards simultaneously. The bottom of the lowest sliding sleeve aligns with the top of the baffle plate, at which point the cutter head structures no longer move downwards. The second cutter head structure from the top (hereinafter referred to as the No. 2 cutter head structure) moves to the position of the original worn cutter head structure. At this time, the positioning hole on the left side of the No. 2 cutter head structure is aligned with the positioning rod. Then, the electric telescopic rod is retracted, which drives the positioning rod to reset and move to the right, inserting into the positioning hole of the No. 2 cutter head structure to fix it. At this time, the No. 2 cutter head structure is fixed. Then, the servo motor is started to rotate the baffle 180 degrees. The baffle moves away from the bottom of the guide rod, and the worn cutter head structure loses its support and falls from under the main frame. Then, the servo motor drives the baffle to reset and continue the shearing work. This achieves the effects of quick cutter replacement, maintaining cutter head accuracy, improving shearing efficiency and quality, and facilitating user operation.

[0014] 2. This utility model, through the combined use of a hydraulic cylinder and a pressure plate, allows the pressure plate to move downwards during shearing operations. This pressure plate applies pressure to each cutter head structure, ensuring a tight fit, improving stability, reducing cutter head wobbling and vibration, and enhancing shearing quality and tool life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear cross-sectional structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of this utility model;

[0018] Figure 4 This utility model Figure 2 A magnified structural diagram of A in the diagram.

[0019] In the diagram: 1. Main frame; 2. Cutter head structure; 3. Cutter holder; 4. Shearing cutter head; 5. Side ear plate; 6. Positioning hole; 7. Ear plate groove; 8. Cutter head groove; 9. Electric telescopic rod; 10. Connecting plate; 11. Positioning rod; 12. Guide rod; 13. Sliding sleeve; 14. Servo motor; 15. Baffle plate; 16. Hydraulic cylinder; 17. Pressure plate; 18. Rubber plate; 19. Telescopic support rod; 20. Mounting foot; 21. Mounting groove; 22. T-block; 23. T-slot. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figures 1 to 4A quick-change blade structure for a galvanized coil slitting shearing machine includes: a main frame 1, with several interlocking blade head structures 2 inside the main frame 1. Each blade head structure 2 includes a blade holder 3 slidably connected inside the main frame 1. A shearing blade head 4 is fixedly connected to the bottom of the blade holder 3. Side ear plates 5 are fixedly connected to the left and right sides of the bottom of the blade holder 3, and the left side ear plate 5 has a through-hole 6. Ear plate grooves 7 that mate with the side ear plates 5 are opened on the left and right sides of the top of the blade holder 3. A blade head groove 8 that mates with the shearing blade head 4 is opened on the top of the blade holder 3. The surface of the side ear plate 5 is in contact with the inner wall of the adjacent ear plate groove 7, and the surface of the shearing blade head 4 is inserted into the adjacent blade head groove 8. An electric telescopic rod 9 is fixedly connected to the bottom left side of the main frame 1. The output of the electric telescopic rod 9... A connecting plate 10 is fixedly connected to the end of the main frame 1. A positioning rod 11 is fixedly connected to the bottom right side of the connecting plate 10. The right end of the positioning rod 11 passes through the interior of the main frame 1 and is inserted into the positioning hole 6. A guide rod 12 is fixedly connected to the right side of the main frame 1. A sliding sleeve 13 is fixedly connected to the right side of the tool holder 3. The inner wall of the sliding sleeve 13 is slidably connected to the surface of the guide rod 12. A through groove is provided on the right side of the main frame 1 for the sliding sleeve 13 to move. The bottom of the through groove passes through the bottom of the main frame 1, making it convenient for the sliding sleeve 13 to be moved off the main frame 1. A servo motor 14 is fixedly connected to the bottom right side of the main frame 1. A baffle 15 is fixedly connected to the output end of the servo motor 14. The top of the baffle 15 fits against the bottom end of the guide rod 12. The servo motor 14, the electric telescopic rod 9, and the hydraulic cylinder 16 are all electrically connected to the external controller.

[0022] refer to Figure 1 As shown, a hydraulic cylinder 16 is fixedly connected to the center of the bottom of the inner wall of the main frame 1, and a pressure plate 17 is fixedly connected to the output end of the hydraulic cylinder 16. The bottom of the pressure plate 17 is in contact with the top of the cutter head structure 2.

[0023] It should be noted that by using the hydraulic cylinder 16 and the pressure plate 17 together, during the shearing operation, the hydraulic cylinder 16 drives the pressure plate 17 to move downward, so that the pressure plate 17 applies pressure to each cutter head structure 2, making them fit tightly together, improving stability, reducing cutter head shaking and vibration, improving shearing quality and tool life.

[0024] refer to Figure 2 As shown, a rubber plate 18 is fixedly connected to the bottom of the pressure plate 17, and the bottom of the rubber plate 18 is in contact with the top of the cutter head structure 2.

[0025] It should be noted that by setting the rubber plate 18 at the bottom of the pressure plate 17 to fit against the top of the cutter head structure 2, the rubber plate 18 has good elasticity and buffering performance. When the hydraulic cylinder 16 drives the pressure plate 17 to press down, the rubber plate 18 can play a buffering role, avoiding the pressure plate 17 from causing rigid impact on the cutter head structure 2, protecting the cutter head structure 2 from damage, and also reducing noise and vibration.

[0026] refer to Figure 1 As shown, telescopic support rods 19 are fixedly connected to the left and right sides of the top of the pressure plate 17, and the top of the telescopic support rods 19 is fixedly connected to the top of the inner wall of the main frame 1.

[0027] It should be noted that: by setting telescopic support rods 19 on the left and right sides of the top of the pressure plate 17, the top of which is fixedly connected to the top of the inner wall of the main frame 1, the telescopic support rods 19 extend and retract as the pressure plate 17 moves up and down driven by the hydraulic cylinder 16, playing a supporting and guiding role, ensuring the smooth movement of the pressure plate 17, preventing the pressure plate 17 from tilting or shaking during the movement, thereby ensuring that the pressure applied to the cutter head structure 2 is uniform, and further improving the stability of the cutter head structure 2.

[0028] refer to Figure 1 As shown, the top left and right sides of the main frame 1 are fixed with detachable mounting feet 20 by bolts, and the top left and right sides of the main frame 1 are provided with mounting grooves 21.

[0029] It should be noted that by setting detachable mounting feet 20 on the top left and right sides of the main frame 1 and providing mounting slots 21, this design makes the equipment more flexible during installation. The position and angle of the mounting feet 20 can be adjusted according to different installation environments and needs. At the same time, the detachable mounting feet 20 also facilitate the handling and maintenance of the equipment, reducing the installation and maintenance costs.

[0030] refer to Figure 2 As shown, T-shaped blocks 22 are fixedly connected to the front and back sides of the left and right sides of the tool holder 3. T-shaped grooves 23 that cooperate with the T-shaped blocks 22 are opened on the front and back sides of the left and right sides of the inner wall of the main frame 1. The surface of the T-shaped block 22 is slidably connected to the inner wall of the T-shaped groove 23.

[0031] It should be noted that the T-shaped blocks 22 on the left and right sides and front and back of the tool holder 3 are slidably connected to the T-shaped grooves 23 on the left and right sides and front and back of the inner wall of the main frame 1. The cooperation between the T-shaped blocks 22 and the T-shaped grooves 23 provides good guidance and stability. During the sliding process of the tool holder 3, the T-shaped blocks 22 slide along the T-shaped grooves 23, which can effectively prevent the tool holder 3 from shifting or shaking, improve the smoothness and stability of the sliding of the tool holder 3, and thus ensure the smooth progress of the tool changing process.

[0032] The working principle of the quick-change blade structure of the galvanized coil slitting shear provided by this utility model is as follows: During use, the main frame 1 is connected to the output end of the shearing device. The galvanized coil is slitted through the lowest blade structure 2 inside the main frame 1. When the blade is worn and needs replacement, the electric telescopic rod 9 can be extended, causing the connecting plate 10 to move to the left. As the connecting plate 10 moves to the left, the positioning rod 11 moves to the left, moving away from the positioning hole 6, thus releasing the fixation of the lowest blade structure 2. The lowest blade structure 2 slides downwards under the influence of gravity, and the upper blade structures 2 lose support and slide downwards synchronously. The bottom of the lowest sliding sleeve 13 is in contact with the top of the baffle 15. At this time, the blade structures 2 no longer move downwards. The second cutter head structure 2 (hereinafter referred to as cutter head structure 2) moves to the position of the original worn cutter head structure 2. At this time, the positioning hole 6 on the left side of cutter head structure 2 is aligned with the positioning rod 11. Then, the electric telescopic rod 9 is retracted, which drives the positioning rod 11 to reset and move to the right, and insert it into the positioning hole 6 of cutter head structure 2 to fix cutter head structure 2. At this time, cutter head structure 2 is fixed. Then, the servo motor 14 is started to rotate the baffle 15 180 degrees. The baffle 15 moves away from the bottom end of the guide rod 12, and the worn cutter head structure 2 loses support and falls from below the main frame 1. Then, the servo motor 14 drives the baffle 15 to reset and continue the shearing work. This achieves the effects of quick cutter replacement, maintaining cutter head accuracy, improving shearing efficiency and quality, and facilitating user operation.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A quick-change blade structure for a galvanized sheet slitting and shearing machine, characterized in that, include: The main frame (1) has several interlocking cutter head structures (2) inside. Each cutter head structure (2) includes a cutter holder (3) slidably connected inside the main frame (1). A shearing cutter head (4) is fixedly connected to the bottom of the cutter holder (3). Side ear plates (5) are fixedly connected to the left and right sides of the bottom of the cutter holder (3). The left side ear plate (5) has a positioning hole (6) that runs through the left and right sides. The left and right sides of the top of the cutter holder (3) have ear plate grooves (7) that cooperate with the side ear plates (5). The top of the cutter holder (3) has a cutter head groove (8) that cooperates with the shearing cutter head (4). The surface of the side ear plate (5) is in contact with the inner wall of the adjacent ear plate groove (7). The surface of the shearing cutter head (4) is inserted into the adjacent cutter head groove (8). An electric telescopic rod (9) is fixedly connected to the bottom left side of the main frame (1). A connecting plate (10) is fixedly connected to the output end of the electric telescopic rod (9). A positioning rod (11) is fixedly connected to the bottom right side of the connecting plate (10). The right end of the positioning rod (11) passes through the interior of the main frame (1) and is inserted into the positioning hole (6). A guide rod (12) is fixedly connected to the right side of the main frame (1). A sliding sleeve (13) is fixedly connected to the right side of the tool holder (3). The inner wall of the sliding sleeve (13) is slidably connected to the surface of the guide rod (12). A servo motor (14) is fixedly connected to the bottom right side of the main frame (1). A baffle (15) is fixedly connected to the output end of the servo motor (14). The top of the baffle (15) is in contact with the bottom end of the guide rod (12).

2. The quick-change blade structure of the galvanized coil slitting shear according to claim 1, characterized in that, A hydraulic cylinder (16) is fixedly connected to the center of the bottom of the inner wall of the main frame (1), and a pressure plate (17) is fixedly connected to the output end of the hydraulic cylinder (16). The bottom of the pressure plate (17) is in contact with the top of the cutter head structure (2).

3. The quick-change blade structure of a galvanized coil slitting shear according to claim 2, characterized in that, A rubber plate (18) is fixedly connected to the bottom of the pressure plate (17), and the bottom of the rubber plate (18) is in contact with the top of the blade structure (2).

4. The quick-change blade structure of a galvanized coil slitting shear according to claim 3, characterized in that, Telescopic support rods (19) are fixedly connected to the left and right sides of the top of the pressure plate (17), and the top of the telescopic support rods (19) is fixedly connected to the top of the inner wall of the main frame (1).

5. The quick-change blade structure of a galvanized coil slitting shear according to claim 4, characterized in that, The top left and right sides of the main frame (1) are fixed with detachable mounting feet (20) by bolts, and the top left and right sides of the main frame (1) are provided with mounting grooves (21).

6. The quick-change blade structure of a galvanized coil slitting and shearing machine according to claim 5, characterized in that, T-shaped blocks (22) are fixedly connected to the front and back sides of the left and right sides of the knife holder (3). T-shaped grooves (23) that cooperate with the T-shaped blocks (22) are opened on the front and back sides of the left and right sides of the inner wall of the main frame (1). The surface of the T-shaped block (22) is slidably connected to the inner wall of the T-shaped groove (23).

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