An on-line width setting cross-cutting device for sheet metal

Abstract

The utility model discloses a kind of metal sheet online width cutting device, including workbench, the upper portion of workbench is provided with guiding mechanism, width setting mechanism, feeding mechanism and cross-cut mechanism once;The guiding mechanism includes two symmetrical fixed settings in the vertical plate of the workbench front end outside, and a plurality of guiding rollers are rotatably arranged on the two vertical plates;The width setting mechanism includes vertically fixed setting in the mounting plate of the workbench end portion middle, and two carriages are slidably arranged on the mounting plate oppositely, and the upper portion of two carriages is rotatably arranged with two sets of limit guide wheels, and the lower portion of one of the carriages is fixedly provided with a line encoder on the outside end, and the line of the line encoder is fixedly connected with another carriage.The utility model realizes the automatic width cutting operation of the metal sheet with inconsistent width, effectively reduces the manpower input in the process of waste metal sheet recovery, and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of metal sheet recycling technology, and in particular to an online fixed-width cross-cutting device for thin metal sheets. Background Technology

[0002] During the processing of thin metal sheets, some sheets with beveled edges and inconsistent widths are produced. Since these sheets do not meet the specifications required for normal processing and application, they are usually discarded, resulting in resource waste. To save costs, these discarded sheets can be cross-cut at locations meeting specific width requirements, followed by trimming and welding to achieve recycling. However, currently, the width deviation of these inconsistent thin metal sheets is mainly determined manually. Lines are drawn where the sheet exceeds the width required for recycling, and cross-cutting is performed along these lines. This manual operation is cumbersome, requiring repeated measurements of the width of various parts of the sheet to determine the cutting location, resulting in low efficiency. Therefore, an online fixed-width cross-cutting device for thin metal sheets is needed. Utility Model Content

[0003] The purpose of this invention is to provide an online fixed-width cross-cutting device for thin metal sheets, which solves the technical problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses an online fixed-width cross-cutting device for thin metal sheets, including a worktable. The upper part of the worktable is provided with a material guiding mechanism, a fixed-width mechanism, a feeding mechanism, and a cross-cutting mechanism.

[0006] The material guiding mechanism includes two symmetrical upright plates fixedly disposed on the front end of the workbench, and multiple material guiding rollers are rotatably disposed on the two upright plates.

[0007] The width-fixing mechanism includes a vertically fixed mounting plate at the middle of the end of the workbench. Two slides are slidably arranged opposite each other on the mounting plate. Two sets of limiting guide wheels are symmetrically rotatably arranged on the upper part of the two slides. A pull-wire encoder is fixedly installed on the lower outer end of one of the slides. The pull wire of the pull-wire encoder is fixedly connected to the other slide.

[0008] The feeding mechanism includes a feeding platform fixedly installed in the middle of the upper part of the workbench. Multiple feeding rollers are rotatably arranged at even intervals between the two side plates of the feeding platform. A servo motor for driving the multiple feeding rollers to rotate synchronously is fixedly installed on the workbench.

[0009] The cross-cutting mechanism includes a cutting frame fixedly mounted on the other end of the upper part of the worktable. A fixed cutter is fixedly mounted on the bottom of the cutting frame near the feeding table. A lifting platform is slidably mounted on the side of the cutting frame facing the fixed cutter. A movable cutter corresponding to the fixed cutter is fixedly mounted on the bottom of the lifting platform. A cutting cylinder for driving the lifting platform to move vertically is mounted on the top of the cutting frame.

[0010] Furthermore, a guide roller is rotatably disposed between the two upright plates above the guide roller located at the highest point.

[0011] Furthermore, two drive pulleys are symmetrically and rotatably arranged on the mounting plate, and a drive belt is provided between the two drive pulleys. One of the slides is fixedly connected to the upper side of the drive belt, and the other slide is fixedly connected to the lower side of the drive belt. A spring is provided between the two slides.

[0012] Furthermore, a horizontal first slide rail is fixedly provided in the middle of the mounting plate, and a first slider that slides in cooperation with the first slide rail is fixedly provided on each of the two slide brackets.

[0013] Furthermore, two pull-wire guide wheels are symmetrically and rotatably arranged on the lower part of the two slides away from the mounting plate. The pull wire of the pull-wire encoder passes through the pull-wire guide wheel on its corresponding slide and is fixedly connected to the pull-wire guide wheel on the other slide.

[0014] Furthermore, a first gear is provided on the drive shaft of the servo motor, and multiple transmission shafts are provided between the two side plates of the feeding table to rotate at even intervals as the multiple feeding rollers fold down, with each transmission shaft located between two adjacent feeding rollers; one end of each transmission shaft near the servo motor extends to the outside of the feeding table and is provided with a second gear at its end, with the lower end of the second gear located in the middle meshing with the upper end of the first gear; the central shaft of each feeding roller extends to the outside of the feeding table at one end near the servo motor and is provided with a third gear at its end, with the upper sides of each second gear meshing with the bottom of two adjacent third gears respectively.

[0015] Furthermore, the feeding platform has feeding pressure rollers rotatably mounted above the two feeding rollers located at the ends. The central shaft of each feeding pressure roller extends to the outside of the feeding platform at the end near the servo motor and is provided with a fourth gear at the end. The lower end of the fourth gear on each feeding pressure roller meshes with the upper end of the third gear on its corresponding feeding roller.

[0016] Furthermore, a cylinder mounting bracket is fixedly installed above the feeding platform, and a vertical drive cylinder is fixedly installed on the upper part of the cylinder mounting bracket. The telescopic end of the drive cylinder is fixedly connected to the upper part of the lifting platform, and the bottom of the lifting platform is fixedly connected to the upper part of the pressure roller seat. Multiple lifting pressure rollers are evenly spaced and rotatably arranged on the bottom of the pressure roller seat. The multiple lifting pressure rollers are located above the multiple feeding rollers, and each lifting pressure roller is directly opposite the middle of two adjacent feeding rollers.

[0017] Furthermore, the main body of the cutting cylinder is hinged to the upper part of the cutting machine frame, the telescopic end of the cutting cylinder is hinged to one end of the driving shear plate, and the other end of the driving shear plate is rotatably connected to the mounting shaft fixedly set at the end of the cutting machine frame; an elongated oval connecting hole is opened in the middle of the driving shear plate, and the connecting hole is rotatably engaged with the connecting bearing fixedly set in the middle of the lifting platform.

[0018] Furthermore, the cutting machine frame is symmetrically and fixedly provided with two vertical second slide rails on one side corresponding to the lifting platform, and two second sliders are fixedly provided on the lifting platform, which respectively slide and cooperate with the two second slide rails.

[0019] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0020] In this invention, the two slides in the width-fixing mechanism are fixedly connected to the upper and lower sides of the transmission belt, respectively, and are connected by springs. When different width portions of the metal sheet pass between two sets of limiting guide wheels, the distance between the two slides changes. This change in distance is detected by the pull sensor connected to the two slides. The preset program of the pull encoder calculates the width value of the corresponding position of the metal sheet based on the displacement change of the slides. When the pull encoder detects that the width of the metal sheet between the two slides exceeds the width range required for recycling, the servo motor of the feeding mechanism drives multiple feeding rollers to rotate, conveying the portion of the metal sheet exceeding the width range detected by the pull encoder from the width-fixing mechanism to the cross-cutting mechanism. Then, the cutting cylinder actuates, causing the movable cutter at the lower end of the lifting platform to cooperate with the fixed cutter on the cutting frame to complete the cross-cutting of the metal sheet. Therefore, this invention realizes automatic width-fixed cross-cutting of metal sheets with inconsistent widths, effectively reducing the manual input in the waste metal sheet recycling process and improving work efficiency. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the width-fixing mechanism of this utility model;

[0024] Figure 3 This is an external schematic diagram of the feeding mechanism of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the feeding mechanism of this utility model;

[0026] Figure 5 This is a schematic diagram of the cross-cutting mechanism of this utility model;

[0027] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Vertical plate; 3. Guide roller; 4. Guide pressure roller; 5. Mounting plate; 6. Slide; 7. Limiting guide wheel; 8. Transmission pulley; 9. Transmission belt; 10. Upper connecting plate; 11. Lower connecting plate; 12. Spring; 13. First slide rail; 14. First slider; 15. Wire encoder; 16. Wire; 17. Wire guide wheel; 18. Feeding table; 19. Feeding roller; 20. Servo motor; 21. First gear; 22. 23. Drive shaft; 24. Second gear; 25. Third gear; 26. Feeding roller; 27. Fourth gear; 28. Cylinder mounting bracket; 29. ​​Drive cylinder; 30. Lifting platform; 31. Pressure roller seat; 32. Lifting pressure roller; 33. Cutting machine frame; 34. Fixed cutter; 35. Lifting platform; 36. Second slide rail; 37. Second slider; 38. Movable cutter; 39. Cutting cylinder; 40. Drive shearing; 41. Mounting shaft; 42. Connecting hole; 43. Connecting bearing. Detailed Implementation

[0028] like Figures 1-5 As shown, an online fixed-width cross-cutting device for thin metal sheets includes a worktable 1, on the upper part of which a guiding mechanism, a fixed-width mechanism, a feeding mechanism, and a cross-cutting mechanism are arranged.

[0029] like Figure 1 As shown, the material guiding mechanism includes two symmetrically fixed vertical plates 2 mounted on the front exterior of the worktable 1. Multiple material guiding rollers 3 are rotatably mounted on the two vertical plates 2. Additionally, a material guiding pressure roller 4 is rotatably mounted between the two vertical plates 2, above the highest material guiding roller 3. The material guiding mechanism of this invention can receive and guide the metal sheet to be cut, allowing it to enter the subsequent width-fixing mechanism. Furthermore, the material guiding pressure roller 4, in conjunction with the material guiding rollers 3 below it, performs preliminary compression and leveling of the metal sheet.

[0030] like Figure 2As shown, the width-fixing mechanism includes a vertically fixed mounting plate 5 at the middle of the end of the workbench 1. Two slides 6 are slidably mounted opposite each other on the mounting plate 5. In this example, each slide 6 has a T-shaped structure. Two sets of limiting guide wheels 7 are symmetrically and rotatably mounted on the upper part of the two slides 6. Each set of limiting guide wheels 7 on each slide 7 consists of two wheels, which are rotatably mounted at the front and rear ends of the upper surface of the horizontal part of the slide 6, respectively. Each limiting guide wheel 7 has a grooved wheel structure. The thin metal sheet to be cut passes between the two sets of opposing limiting guide wheels 4, thereby limiting the movement of the thin metal sheet during transport.

[0031] Two drive pulleys 8 are symmetrically and rotatably mounted on the mounting plate 5. A drive belt 9, adapted to each pulley 8, is installed between them. The vertical part of one slide 6 is fixedly connected to the upper side of the drive belt 9 via a horizontal upper connecting plate 10, and the vertical part of the other slide 6 is fixedly connected to the lower side of the drive belt 9 via a horizontal lower connecting plate 11. A spring 12 is connected between the lower ends of the vertical parts of the two slides 6. A horizontal first slide rail 13 is fixedly mounted in the middle of the mounting plate 2, and a first slider 14, which slides in cooperation with the first slide rail 13, is fixedly mounted on each of the two slides 6.

[0032] In this example, a pull-wire encoder 15 is fixedly mounted on the lower outer end of one of the slides 6, and the pull wire 16 of the pull-wire encoder 15 is fixedly connected to the other slide 6. Specifically, two pull-wire guide rollers 17 are symmetrically rotatably arranged on the lower part of the two slides 6 away from the mounting plate 5. The pull wire 16 of the pull-wire encoder 15 passes through the pull-wire guide roller 17 on its corresponding slide 6 and is fixedly connected to the pull-wire guide roller 17 on the other slide 6.

[0033] In this invention, two slides are fixedly connected to the upper and lower sides of the transmission belt, respectively. The two slides are also connected by springs. When different widths of the metal sheet pass between the two sets of limiting guide wheels, the distance between the two slides will change. The change in the distance between the two slides is identified by the pull sensor connected to the two slides. The preset program of the pull encoder calculates the width value of the corresponding position of the metal sheet based on the displacement change of the slides.

[0034] like Figure 3 and Figure 4 As shown, the feeding mechanism includes a feeding platform 18 fixedly installed in the middle of the upper part of the workbench 1. Multiple feeding rollers 19 are rotatably installed at even intervals between the two side plates of the feeding platform 18. A servo motor 20 for driving the multiple feeding rollers 19 to rotate synchronously is fixedly installed on the workbench 1.

[0035] In this embodiment, a first gear 21 is mounted on the drive shaft of the servo motor 20. Multiple transmission shafts 22 are mounted between the two side plates of the feeding table 18, rotating at even intervals as the multiple feeding rollers 19 fold downwards. Each transmission shaft 22 is located between two adjacent feeding rollers 19. One end of each transmission shaft 22 near the servo motor 20 extends to the outside of the feeding table 18, and a second gear 23 is mounted at its end. The lower end of the second gear 23 located in the middle meshes with the upper end of the first gear 21. The central shaft of each feeding roller 19, near the servo motor 20, extends to the outside of the feeding table 18, and a third gear 24 is mounted at its end. The upper sides of each second gear 23 mesh with the bottoms of two adjacent third gears 24.

[0036] The servo motor drives multiple feeding rollers 19 to rotate synchronously through the meshing of a first gear, multiple second gears, and multiple third gears, thereby conveying the thin metal sheet passing through the feeding table to the cross-cutting mechanism behind.

[0037] The feeding table 18 has feeding pressure rollers 25 rotatably mounted above the two feeding rollers 19 located at its ends. The central shaft of each feeding pressure roller 25 extends to the outer side of the feeding table 18 near the servo motor 20, and a fourth gear 26 is mounted at its end. The lower end of the fourth gear 26 on each feeding pressure roller 25 meshes with the upper end of the third gear 24 on its corresponding feeding roller 19. During operation, the meshing transmission of the third and fourth gears causes each feeding pressure roller 25 to rotate relative to its corresponding feeding roller 19, further pressing and leveling the passing metal sheet.

[0038] Additionally, a cylinder mounting bracket 27 is fixedly installed above the feeding platform 18. A vertical drive cylinder 28 is fixedly installed on the upper part of the cylinder mounting bracket 27. The telescopic end of the drive cylinder 28 is fixedly connected to the upper part of the lifting platform 29. The bottom of the lifting platform 29 is fixedly connected to the upper part of the pressure roller seat 30. Multiple lifting pressure rollers 31 are evenly spaced and rotatably mounted on the bottom of the pressure roller seat 30. The multiple lifting pressure rollers 31 are located above the multiple feeding rollers 19, and each lifting pressure roller 31 is directly opposite the middle of two adjacent feeding rollers 19. In this embodiment, the multiple lifting pressure rollers 31 act on the upper surface of the metal sheet passing through the feeding platform, thereby effectively limiting the sheet in the vertical direction.

[0039] like Figure 5As shown, the cross-cutting mechanism includes a cutting frame 32 fixedly installed at the other end of the upper part of the workbench 1. A fixed cutter 33 is fixedly installed at the bottom of the cutting frame 32 near the feeding table 18. A lifting platform 34 is slidably installed on the side of the cutting frame 32 facing the fixed cutter 33. Two vertical second slide rails 35 are symmetrically fixedly installed on the side of the cutting frame 32 corresponding to the lifting platform 34. Two second sliders 36, which respectively slide and cooperate with the two second slide rails 35, are fixedly installed on the lifting platform 34. A movable cutter 37 corresponding to the fixed cutter 33 is fixedly installed at the bottom of the lifting platform 34. A cutting cylinder 38 for driving the vertical movement of the lifting platform 34 is installed at the top of the cutting frame 32.

[0040] In this embodiment, the main body of the cutting cylinder 38 is hinged to the upper part of the cutting frame 32, and the telescopic end of the cutting cylinder 38 is hinged to one end of the driving shear plate 39. The other end of the driving shear plate 39 is rotatably connected to the mounting shaft 40 fixedly installed on the side of the cutting frame 32. An elongated oval connecting hole 41 is provided in the middle of the driving shear plate 39, and the connecting hole 41 is rotatably engaged with the connecting bearing 42 fixedly installed in the middle of the lifting platform 34. When the cutting cylinder 38 extends, the driving shear plate 39 drives the lifting platform to move downwards in the vertical direction, causing the movable cutter at the lower end of the lifting platform to cooperate with the fixed cutter on the cutting frame to complete the cutting of the thin metal sheet.

[0041] This utility model also includes a controller (not shown in the figure) installed on the workbench. The controller is specifically a PLC (Programmable Logic Controller). The wire encoder, the servo motor, the drive cylinder, and the cutting cylinder are all electrically connected to the controller. When the wire encoder detects that the width of the metal sheet between the two carriages exceeds the width range required for recycling processing, it sends a sensing signal to the controller. The controller then controls the servo motor. The servo motor continues to drive multiple conveying rollers to rotate a certain number of revolutions at a constant power according to a preset program, and then stops. The "certain number of revolutions" refers to the fact that after rotating a specific number of revolutions, the feeding mechanism conveys the portion of the metal sheet that exceeds the width range detected by the wire encoder to the cross-cutting mechanism via the width-fixing mechanism. Then, the cutting cylinder actuates to cause the movable cutter at the lower end of the lifting platform to cooperate with the fixed cutter on the cutting frame to complete the cross-cutting of the metal sheet.

[0042] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An apparatus for on-line width sizing and cross cutting of a metal sheet, characterized in that: The system includes a worktable, and the upper part of the worktable is equipped with a material guiding mechanism, a width fixing mechanism, a material feeding mechanism, and a cross-cutting mechanism. The material guiding mechanism includes two symmetrically fixed vertical plates on the front end of the workbench, and multiple material guiding rollers are rotatably arranged on the two vertical plates. The width-fixing mechanism includes a mounting plate that is vertically fixed in the middle of the end of the workbench. Two slides are slidably arranged opposite each other on the mounting plate. Two sets of limiting guide wheels are symmetrically rotatably arranged on the upper part of the two slides. A pull-wire encoder is fixedly installed on the lower outer end of one of the slides. The pull wire of the pull-wire encoder is fixedly connected to the other slide. The feeding mechanism includes a feeding platform fixedly installed in the middle of the upper part of the workbench. Multiple feeding rollers are rotatably arranged at even intervals between the two side plates of the feeding platform. A servo motor for driving the multiple feeding rollers to rotate synchronously is fixedly installed on the workbench. The cross-cutting mechanism includes a cutting frame fixedly mounted on the other end of the upper part of the worktable. A fixed cutter is fixedly mounted on the bottom of the cutting frame near the feeding table. A lifting platform is slidably mounted on the side of the cutting frame facing the fixed cutter. A movable cutter corresponding to the fixed cutter is fixedly mounted on the bottom of the lifting platform. A cutting cylinder for driving the lifting platform to move vertically is mounted on the top of the cutting frame.

2. The online width-fixed cross-cutting device for metal sheets according to claim 1, characterized in that: A guide roller is rotatably disposed between the two upright plates above the guide roller located at the highest point.

3. The online width-fixed cross-cutting device for metal sheets according to claim 1, characterized in that: Two drive pulleys are symmetrically and rotatably arranged on the mounting plate. A drive belt is provided between the two drive pulleys. One slide is fixedly connected to the upper side of the drive belt, and the other slide is fixedly connected to the lower side of the drive belt. A spring is provided between the two slides.

4. The online width-fixed cross-cutting device for metal sheets according to claim 3, characterized in that: A horizontal first slide rail is fixedly installed in the middle of the mounting plate, and a first slider that slides in cooperation with the first slide rail is fixedly installed on each of the two slides.

5. The online width-fixed cross-cutting device for metal sheets according to claim 1, characterized in that: Two pull-wire guide wheels are symmetrically and rotatably arranged on the lower part of the two carriages away from the mounting plate. The pull wire of the pull-wire encoder passes through the pull-wire guide wheel on its corresponding carriage and is fixedly connected to the pull-wire guide wheel on the other carriage.

6. The online width-fixed cross-cutting device for metal sheets according to claim 1, characterized in that: The servo motor has a first gear on its drive shaft. Multiple transmission shafts are arranged between the two side plates of the feeding platform, rotating at even intervals as the multiple feeding rollers fold downwards. Each transmission shaft is located between two adjacent feeding rollers. One end of each transmission shaft near the servo motor extends to the outside of the feeding platform and has a second gear at its end. The lower end of the second gear located in the middle meshes with the upper end of the first gear. The central shaft of each feeding roller extends to the outside of the feeding platform from the end near the servo motor and has a third gear at its end. The upper sides of each second gear mesh with the bottoms of two adjacent third gears.

7. The online fixed-width cross-cutting device for metal sheets according to claim 6, characterized in that: The feeding platform has feeding pressure rollers rotatably mounted above the two feeding rollers located at the ends. The central shaft of each feeding pressure roller extends to the outside of the feeding platform near the servo motor and is provided with a fourth gear at its end. The lower end of the fourth gear on each feeding pressure roller meshes with the upper end of the third gear on its corresponding feeding roller.

8. The online width-fixed cross-cutting device for metal sheets according to claim 7, characterized in that: A cylinder mounting bracket is fixedly installed above the feeding platform. A vertical drive cylinder is fixedly installed on the upper part of the cylinder mounting bracket. The telescopic end of the drive cylinder is fixedly connected to the upper part of the lifting platform. The bottom of the lifting platform is fixedly connected to the upper part of the pressure roller seat. Multiple lifting pressure rollers are evenly spaced and rotatably arranged on the bottom of the pressure roller seat. The multiple lifting pressure rollers are located above the multiple feeding rollers, and each lifting pressure roller is directly opposite the middle of two adjacent feeding rollers.

9. The online width-fixed cross-cutting device for metal sheets according to claim 1, characterized in that: The main body of the cutting cylinder is hinged to the upper part of the cutting machine frame. The telescopic end of the cutting cylinder is hinged to one end of the driving shear plate. The other end of the driving shear plate is rotatably connected to the mounting shaft fixedly set at the end of the cutting machine frame. An elongated oval connecting hole is opened in the middle of the driving shear plate. The connecting hole is rotatably engaged with the connecting bearing fixedly set in the middle of the lifting platform.

10. The online width-fixed cross-cutting device for metal sheets according to claim 9, characterized in that: The cutting machine frame is symmetrically fixed with two vertical second slide rails on one side corresponding to the lifting platform, and the lifting platform is fixed with two second sliders that slide in cooperation with the two second slide rails respectively.

Images