A galvanized sheet dividing processing device
By using a cylinder to drive the translation block and a rotary motor to drive the independent adjustment of the slitting blade, the problem of existing devices being unable to flexibly meet personalized needs has been solved, achieving efficient and precise slitting of galvanized coils and improving production efficiency and finished product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU JINLINDA METAL PRODUCTS CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-26
AI Technical Summary
Existing galvanized coil slitting equipment cannot achieve independent adjustment of individual slitting blades, making it difficult to flexibly meet highly personalized customer needs, resulting in low production efficiency and low equipment utilization.
A galvanized sheet slitting device was designed. The device uses a cylinder to drive a translation block to move a support bar, enabling the slitting blades to quickly engage and disengage. Combined with the sliding connection between the dovetail block and the dovetail groove, the spacing and position of the slitting blades can be adjusted independently. Power is provided by a rotary motor to achieve continuous slitting.
It improves slitting efficiency and precision, meets the slitting requirements of different specifications, reduces equipment downtime, and enhances production efficiency and finished product quality.
Smart Images

Figure CN224406529U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet metal processing, and in particular to a galvanized sheet metal slitting and processing device. Background Technology
[0002] As an important form of steel sheet, coiled steel plays a crucial role in the industrial sector due to its long, narrow shape and availability in coils. Among them, galvanized coiled steel, with its excellent corrosion resistance, good formability, and outstanding economic efficiency, is widely used in various industries such as construction, automobile manufacturing, and home appliances. With the continuous growth in demand for galvanized coiled steel from various industries and the increasing trend towards product diversification, the importance of the slitting process for galvanized coiled steel is becoming increasingly prominent.
[0003] Currently, most mainstream galvanized coil slitting devices on the market use a fixed cutting blade structure. These devices are often designed for specific product specifications, and the position and spacing of the cutting blades are fixed at the factory. In actual production, if the specifications of the galvanized coil required by the customer's order change, such as altering the width or length of the slit sheet, or adjusting the slitting quantity, the operator must disassemble and reinstall the cutting blades. Frequent cutting blade replacements not only lead to prolonged production line downtime, severely impacting equipment utilization and production schedules, but also pose numerous potential problems.
[0004] In the pursuit of technological improvement, some patented solutions for adjustable slitting blades have emerged in existing technologies. For example, Chinese patent application number 202321955564.1 discloses a stainless steel coil slitting device, which is driven by a single motor, reducing costs and failure rates while improving overall reliability; it is also equipped with multiple sets of ring blades, enabling simultaneous slitting of steel coils of various sizes while ensuring consistent slitting dimensions. Another example is the stainless steel coil slitting device in Chinese patent application number 202421576185.6, which uses a first electric push rod, a sliding plate, and other structures to control the movement of the slitting blades, achieving spacing adjustment, and uses a drive motor and other components to control the up-and-down movement of the cutting blades to complete the transverse and longitudinal slitting of the stainless steel coil.
[0005] However, the aforementioned patented technologies still have significant shortcomings. These solutions all employ a synchronous adjustment mode when adjusting multiple slitting blades, failing to achieve independent adjustment of individual blades. In actual production, customer needs are often highly personalized, with some special orders having unique requirements for galvanized coil slitting specifications. For example, multiple non-standard widths need to be slitted on the same coil, or special dimensions need to be cut in specific areas. However, existing patents, because the position, spacing, and movement trajectory of the slitting blades are essentially fixed at the factory, struggle to flexibly address such specific needs. This significantly reduces their practicality in real-world applications, failing to truly meet the increasingly diverse production needs of galvanized coil processing companies.
[0006] Therefore, it is necessary to provide a galvanized sheet slitting device to solve the above-mentioned technical problems. Utility Model Content
[0007] To solve the above-mentioned technical problems, this utility model provides a galvanized steel coil slitting device.
[0008] This utility model provides a galvanized coil slitting device, including a support plate. An unwinding device is fixedly connected to the top of the support plate. A first support bar is fixedly connected to the top of the support plate. A translation groove is formed on the top of the support plate. A translation block is slidably connected inside the translation groove. A cylinder is fixedly connected to the outside of the support plate, and the output end of the cylinder extends into the translation groove and is fixedly connected to the translation block. A second support bar is fixedly connected to the top of the translation block. A load-bearing roller is rotatably connected to the bottom of the first support bar. A snap-fit ring is fixedly connected inside the second support bar and snaps into the load-bearing roller. A [missing information - likely a component or element] is fixedly connected to the outside of the first support bar. A rotary motor has an output shaft fixedly connected to a support shaft. A second support bar has a rotating opening on its surface, which is rotatably connected to the support shaft. An installation roller is fixedly connected to the surface of the support shaft. The surface of the installation roller has three evenly arranged dovetail grooves. Several slitting blades are fitted onto the surface of the installation roller, and the bottoms of the slitting blades cooperate with a load-bearing roller. Three evenly arranged dovetail blocks are fixedly connected to the inner wall of the slitting blades, and the dovetail blocks are slidably connected to the dovetail grooves. Several evenly arranged fixing grooves are formed at the bottom of the dovetail grooves. Fixing bolts are threadedly connected to the surface of the dovetail blocks, and the fixing bolts are threadedly connected to the fixing grooves.
[0009] Preferably, a gantry frame is symmetrically fixedly connected to the top of the support plate about the first support bar, a guide roller is rotatably connected inside the gantry frame, an electric push rod is fixedly connected to the top of the gantry frame, the output end of the electric push rod passes through the gantry frame and is fixedly connected to a connecting bar, and a lower pressure roller is rotatably connected to the bottom of the connecting bar, and the lower pressure roller is located directly above the guide roller.
[0010] Preferably, the inner wall of the gantry frame is symmetrically provided with limit grooves, the two sides of the connecting strip are symmetrically fixedly connected with limit blocks, and the limit blocks are slidably connected with the limit grooves. The top of the gantry frame is symmetrically provided with limit holes about the electric push rod, and the top of the connecting strip is symmetrically fixedly connected with limit posts, and the limit posts are slidably connected with the limit holes.
[0011] Preferably, the top of the support plate is symmetrically and fixedly connected with an electric slide rail, and the electric slide rail is located between the first support bar and the gantry frame. The output end of the electric slide rail is fixedly connected with a moving block, and the top of the moving block is rotatably connected with a guide column.
[0012] Preferably, a snap-fit block is fixedly connected to the top of both the first support bar and the second support bar, and a protective frame is fixedly connected to the top of the snap-fit block.
[0013] Preferably, a controller is fixedly connected to the top of the support plate, and a human-machine interface panel is provided on the surface of the controller.
[0014] Compared with related technologies, the galvanized steel coil slitting device provided by this utility model has the following advantages:
[0015] 1. This utility model provides stable support for the entire device through a support plate. The unwinder enables automatic unwinding of galvanized coils, ensuring the continuity of the slitting process. A cylinder drives a translation block to slide within a translation groove, thereby moving the second support bar and enabling rapid separation or engagement of the locking ring and the load-bearing roller. This eliminates the need for manual disassembly of bolts and other fasteners, improving replacement efficiency. The slitting blades are then slidably connected to the dovetail groove of the mounting roller via dovetail blocks on the inner wall. The spacing of the slitting blades can be adjusted along the axial direction of the mounting roller, and the position of each slitting blade can be independently adjusted according to actual needs. A fixing bolt passes through the dovetail block and is threaded into the fixing groove to fix the position of the slitting blades, achieving precise adjustment of the coil slitting width to meet different specifications. Finally, a rotary motor drives the support shaft to rotate via a coupling, which in turn drives the mounting roller to rotate, providing rotational power to the slitting blades and enabling continuous slitting of the galvanized coils, thus improving slitting efficiency.
[0016] 2. This utility model uses a gantry frame symmetrically arranged on both sides of the first support bar. The internal guide rollers can guide the galvanized coil to ensure that the coil is conveyed in a straight line during the slitting process, avoiding deviation and improving slitting accuracy. Then, the electric push rod drives the connecting bar to move the lower pressure roller downward, which cooperates with the guide roller to press the coil, preventing the coil from shaking during slitting and improving slitting stability and finished product quality. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a three-dimensional schematic diagram of the gantry frame, guide roller, and lower pressure roller used in conjunction with this utility model.
[0019] Figure 3 An exploded view of the load-bearing roller and the mounting roller of this utility model used together;
[0020] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.
[0021] In the diagram: 1. Support plate; 2. Unwinder; 3. First support bar; 4. Translation block; 5. Cylinder; 6. Second support bar; 7. Load-bearing roller; 8. Snap-fit ring; 9. Rotary motor; 10. Support shaft; 11. Rotation port; 12. Mounting roller; 13. Dovetail groove; 14. Slitting knife; 15. Dovetail block; 16. Fixing groove; 17. Fixing bolt; 18. Gantry frame; 19. Guide roller; 20. Electric push rod; 21. Connecting bar; 22. Lower pressure roller; 23. Limiting block; 24. Limiting post; 25. Electric slide rail; 26. Guide post; 27. Protective frame. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please refer to the following: Figures 1 to 4 A galvanized sheet slitting device includes a support plate 1, an unwinder 2 fixedly connected to the top of the support plate 1, a first support bar 3 fixedly connected to the top of the support plate 1, a translation groove formed on the top of the support plate 1, a translation block 4 slidably connected inside the translation groove, a cylinder 5 fixedly connected to the outside of the support plate 1, the output end of the cylinder 5 extending into the translation groove and fixedly connected to the translation block 4, a second support bar 6 fixedly connected to the top of the translation block 4, a load-bearing roller 7 rotatably connected to the bottom of the first support bar 3 via a rotating shaft, a snap-fit ring 8 fixedly connected inside the second support bar 6 and snap-fitting the load-bearing roller 7, and a rotary motor 9 fixedly connected to the outside of the first support bar 3, the output shaft of the rotary motor 9 being connected via a coupling. The device is fixedly connected to a support shaft 10. The surface of the second support bar 6 is provided with a rotating opening 11, and the rotating opening 11 is rotatably connected to the support shaft 10. The surface of the support shaft 10 is fixedly connected to an installation roller 12. The surface of the installation roller 12 is provided with three evenly arranged dovetail grooves 13. The surface of the installation roller 12 is fitted with several sliding blades 14, and the bottom of the several sliding blades 14 is used in conjunction with the load-bearing roller 7. The inner wall of the sliding blades 14 is fixedly connected with three evenly arranged dovetail blocks 15, and the dovetail blocks 15 are slidably connected to the dovetail grooves 13. The bottom of the dovetail grooves 13 is provided with several evenly arranged fixing grooves 16. The surface of the dovetail blocks 15 is threadedly connected with fixing bolts 17, and the fixing bolts 17 are threadedly connected to the fixing grooves 16.
[0024] In the specific implementation process, the support plate 1 provides stable support for the entire device. The unwinder 2 enables automatic unwinding of the galvanized coil, ensuring the continuity of the slitting process. The cylinder 5 drives the translation block 4 to slide in the translation groove, thereby driving the second support bar 6 to move, realizing the rapid separation or snapping of the snap ring 8 and the load-bearing roller 7. This eliminates the need for manual disassembly of bolts and other fasteners, improving replacement efficiency. Then, the slitting blade 14 is slidably connected to the dovetail groove 13 of the mounting roller 12 through the dovetail block 15 on the inner wall, and can slide along the axis of the mounting roller 12. The spacing of the slitting blades 14 can be adjusted, and the position of each slitting blade 14 can be adjusted according to actual needs. Then, the position of the slitting blades 14 can be fixed by the fixing bolts 17 passing through the dovetail block 15 and threadedly connecting to the fixing groove 16, so as to achieve precise adjustment of the slitting width of the coil and meet the slitting requirements of different specifications. Then, the rotary motor 9 drives the support shaft 10 to rotate through the coupling, which in turn drives the mounting roller 12 to rotate, providing rotational power for the slitting blades 14, realizing continuous slitting of galvanized coil and improving slitting efficiency.
[0025] refer to Figure 1 and Figure 2 As shown, a gantry 18 is symmetrically fixedly connected to the top of the support plate 1 about the first support bar 3. A guide roller 19 is rotatably connected inside the gantry 18. An electric push rod 20 is fixedly connected to the top of the gantry 18. The output end of the electric push rod 20 passes through the gantry 18 and is fixedly connected to a connecting bar 21. A lower pressure roller 22 is rotatably connected to the bottom of the connecting bar 21, and the lower pressure roller 22 is located directly above the guide roller 19. Limiting grooves are symmetrically opened on the inner wall of the gantry 18. Limiting blocks 23 are symmetrically fixedly connected to both sides of the connecting bar 21, and the limiting blocks 23 are slidably connected to the limiting grooves. Limiting holes are symmetrically opened on the top of the gantry 18 about the electric push rod 20. Limiting posts 24 are symmetrically fixedly connected to the top of the connecting bar 21, and the limiting posts 24 are slidably connected to the limiting holes. The tops of the load-bearing roller 7 and the guide roller 19 are both located on the same horizontal plane.
[0026] It should be noted that: the gantry frame 18 is symmetrically arranged on both sides of the first support bar 3, and the internal guide roller 19 can guide the galvanized coil to ensure that the coil is conveyed in a straight line during the slitting process, avoid deviation, and improve the slitting accuracy. Then, the electric push rod 20 drives the connecting bar 21 to move the lower pressure roller 22 downward, which cooperates with the guide roller 19 to press the coil, prevent the coil from shaking during slitting, and improve the slitting stability and finished product quality.
[0027] It should be noted that the limiting groove on the inner wall of the gantry frame 18 is slidably connected to the limiting blocks 23 on both sides of the connecting strip 21, which can limit the movement direction of the connecting strip 21, prevent the lower pressure roller 22 from deviating during the lifting process, and ensure the stability of the pressing action. The limiting hole at the top of the gantry frame 18 is slidably connected to the limiting post 24 at the top of the connecting strip 21, which further enhances the guiding nature of the connecting strip 21 during lifting, ensures that the lower pressure roller 22 and the guide roller 19 are accurately aligned, and improves the pressing effect.
[0028] It should be noted that the tops of the load-bearing roller 7 and the guide roller 19 are both located on the same horizontal plane. This design enables the coil to maintain a stable state during conveying and slitting, effectively avoiding problems such as coil twisting and wrinkling caused by height differences, and providing a basic guarantee for slitting accuracy.
[0029] refer to Figure 1 As shown, the top of the support plate 1 is symmetrically and fixedly connected with an electric slide rail 25, and the electric slide rail 25 is located between the first support bar 3 and the gantry frame 18. The output end of the electric slide rail 25 is fixedly connected with a moving block, and the top of the moving block is rotatably connected with a guide column 26.
[0030] It should be noted that the guide column 26 driven by the electric slide rail 25 is used to correct the position, ensuring the stability of the conveying direction of the roll plate and avoiding deviation.
[0031] refer to Figure 1 and Figure 3 As shown, the top of the first support bar 3 and the second support bar 6 are both fixedly connected to a snap-fit block, and the top of the snap-fit block is fixedly connected to a protective frame 27.
[0032] It should be noted that the snap-fit blocks at the top of the first support bar 3 and the second support bar 6 fix the protective frame 27, which can protect the rotating parts such as the load-bearing roller 7 and the slitting knife 14 inside the device, prevent operators from accidentally contacting them, and improve the safety of the device.
[0033] refer to Figure 1 As shown, a controller is fixedly connected to the top of the support plate 1, and a human-machine interface panel is provided on the surface of the controller.
[0034] It should be noted that the controller on the top of the support plate 1 realizes centralized control of components such as cylinder 5, rotary motor 9, electric push rod 20, and electric slide rail 25 through the human-machine interface. Operators can set cutting parameters such as cutting speed through the human-machine interface to realize automated cutting, improve the convenience of operation and cutting accuracy.
[0035] The working principle of the galvanized coil slitting device provided by this utility model is as follows: Before the galvanized coil slitting operation begins, the galvanized coil is placed on the unwinder 2 at the top of the support plate 1. The operator sets relevant parameters through the human-machine interface panel of the controller according to the slitting requirements. If it is necessary to adjust the spacing of the slitting blades 14, the fixing bolt 17 is loosened, so that the dovetail block 15 on the inner wall of the slitting blade 14 slides axially in the dovetail groove 13 on the surface of the mounting roller 12. After adjusting to the appropriate position, the fixing bolt 17 is tightened to connect it with the fixing groove 16 by thread, thus fixing the slitting blades 14. At the same time, if it is necessary to adjust the lateral position of the slitting, the cylinder 5 is started, and its output end pushes... The movable translation block 4 slides within the translation groove, causing the second support bar 6 and the snap ring 8 to move, thereby changing the relative lateral position of the load-bearing roller 7 and the mounting roller 12. The unwinder 2 releases the galvanized coil, which is then conveyed forward under gravity and the action of subsequent conveying components. Before entering the slitting area, the coil enters the gantry frame 18. The guide roller 19 inside the gantry frame 18 provides initial guidance for the coil. Then, the electric push rod 20 drives the connecting bar 21 to move downward, causing the lower pressure roller 22 to cooperate with the guide roller 19 to press the coil. The limiting block 23 slides within the limiting groove of the gantry frame 18, and the limiting post 24 moves within the limiting hole, ensuring that the lower pressure roller 22 presses down vertically. To prevent the coil from swaying, the coil is first aligned by the guide column 26 driven by the electric slide rail 25 to ensure stable conveying direction. Once preparation is complete, the rotary motor 9 starts, driving the support shaft 10 to rotate via a coupling. The support shaft 10 then drives the mounting roller 12 and the slitting blade 14 to rotate at high speed. The load-bearing roller 7 is rotatably connected to the first support bar 3 via a rotating shaft, and its bottom engages with the locking ring 8 inside the second support bar 6, providing stable support for the coil. During the slitting process, the rotating slitting blade 14 cooperates with the load-bearing roller 7 to perform transverse slitting of the coil. The slitting coil is collected by a subsequent collection mechanism. When it is necessary to replace the slitting blade 14... First, disconnect the power supply to the rotary motor 9, loosen the fixing bolt 17, and release the locking state of the slitting blade 14. Then, separate the support shaft 10 from the rotating opening 11 on the surface of the second support bar 6, so that the mounting roller 12 loses power connection. Manually remove the slitting blade 14 along the dovetail groove 13 and replace it with a new blade. After installing the new slitting blade 14, reinsert the support shaft 10 into the rotating opening 11 to restore power connection. Restart the equipment to continue the slitting operation. Throughout the slitting process, the protective frame 27 fixed by the snap-fit blocks at the top of the first support bar 3 and the second support bar 6 always protects the rotating parts such as the slitting blade 14 and the load-bearing roller 7, ensuring the safety of the operators.
[0036] 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 galvanized sheet slitting and processing device, characterized in that, The system includes a support plate (1), a winding unwinder (2) fixedly connected to the top of the support plate (1), a first support bar (3) fixedly connected to the top of the support plate (1), a translation groove opened on the top of the support plate (1), a translation block (4) slidably connected inside the translation groove, a cylinder (5) fixedly connected to the outside of the support plate (1), and the output end of the cylinder (5) extends to the translation groove and is fixedly connected to the translation block (4), a second support bar (6) fixedly connected to the top of the translation block (4), a load-bearing roller (7) rotatably connected to the bottom of the first support bar (3), a snap ring (8) fixedly connected inside the second support bar (6), and the snap ring (8) snaps into the load-bearing roller (7), a rotary motor (9) fixedly connected to the outside of the first support bar (3), and a support shaft fixedly connected to the output shaft of the rotary motor (9). (10) The surface of the second support bar (6) is provided with a rotating opening (11), and the rotating opening (11) is rotatably connected to the support shaft (10). The surface of the support shaft (10) is fixedly connected with an installation roller (12). The surface of the installation roller (12) is provided with three evenly arranged dovetail grooves (13). The surface of the installation roller (12) is fitted with several cutting blades (14), and the bottom of the several cutting blades (14) is used in conjunction with the load-bearing roller (7). The inner wall of the cutting blade (14) is fixedly connected with three evenly arranged dovetail blocks (15), and the dovetail blocks (15) are slidably connected to the dovetail grooves (13). The bottom of the dovetail grooves (13) is provided with several evenly arranged fixing grooves (16). The surface of the dovetail blocks (15) is threadedly connected with fixing bolts (17), and the fixing bolts (17) are threadedly connected to the fixing grooves (16).
2. The apparatus according to claim 1, wherein A gantry frame (18) is symmetrically fixedly connected to the top of the support plate (1) about the first support bar (3). A guide roller (19) is rotatably connected inside the gantry frame (18). An electric push rod (20) is fixedly connected to the top of the gantry frame (18). The output end of the electric push rod (20) passes through the gantry frame (18) and is fixedly connected to a connecting bar (21). A lower pressure roller (22) is rotatably connected to the bottom of the connecting bar (21), and the lower pressure roller (22) is located directly above the guide roller (19).
3. The apparatus according to claim 2, wherein The inner wall of the gantry (18) is symmetrically provided with limiting grooves. The two sides of the connecting strip (21) are symmetrically fixedly connected with limiting blocks (23), and the limiting blocks (23) are slidably connected with the limiting grooves. The top of the gantry (18) is symmetrically provided with limiting holes about the electric push rod (20). The top of the connecting strip (21) is symmetrically fixedly connected with limiting posts (24), and the limiting posts (24) are slidably connected with the limiting holes.
4. The apparatus according to claim 3, wherein The top of the support plate (1) is symmetrically fixedly connected with an electric slide rail (25), and the electric slide rail (25) is located between the first support bar (3) and the gantry (18). The output end of the electric slide rail (25) is fixedly connected with a moving block, and the top of the moving block is rotatably connected with a guide column (26).
5. The galvanized sheet slitting device according to claim 4, characterized in that, The top of the first support bar (3) and the second support bar (6) are both fixedly connected to a snap-fit block, and the top of the snap-fit block is fixedly connected to a protective frame (27).
6. The galvanized sheet slitting device according to claim 5, characterized in that, A controller is fixedly connected to the top of the support plate (1), and a human-machine interaction panel is provided on the surface of the controller.