A sheet metal slitting machine

Abstract

This utility model discloses a sheet metal slitting machine, including a worktable. An automatic centering mechanism and a longitudinal slitting mechanism are sequentially arranged on the upper part of the worktable. The automatic centering mechanism includes a mounting plate fixedly mounted on the upper part of the worktable. Two carriages are symmetrically slidably mounted on the mounting plate, and two sets of limiting guide wheels are symmetrically rotatably mounted on the upper part of the two carriages. The longitudinal slitting mechanism includes a first spindle box and a second spindle box parallel to each other on the upper part of the worktable. Two cutter shafts are horizontally rotatably mounted on the first and second spindle boxes. A first motor for driving the two cutter shafts to rotate relative to each other is mounted on the outer side of the first spindle box. The middle of the two cutter shafts corresponds to the plane where the limiting guide wheels are located, and a disc shear is fitted on each cutter shaft. This utility model can realize automatic centering of metal sheets, prevent deviation during longitudinal slitting and conveying, and help ensure the subsequent longitudinal shearing effect and slitting dimensional accuracy.

Description

Technical Field

[0001] This utility model relates to the field of metal sheet processing, and in particular to a sheet slitting machine. Background Technology

[0002] Sheet metal generally refers to metal in the form of thin sheets or coils. Common sheet metal includes thin steel plates and steel strip coils. Shearing is the first step in sheet metal processing. When manufacturing parts, sheet metal first needs to be sheared into appropriate shapes and sizes. Then, it undergoes stamping, welding, assembly, and other processes to ultimately obtain the required components. Sheet metal slitting is generally accomplished using a slitting machine. Existing metal slitting machines primarily use rotating rollers on both sides, with adjacent disc shears on these rollers to cut the sheet metal, thus longitudinally shearing wide metal coils to a set width, turning them into narrower strips or sheets. However, existing slitting machines lack a centering function for the sheet metal being cut. The sheet metal is prone to skew during feeding to the disc shears, affecting the slitting effect and slitting accuracy. Therefore, a sheet metal slitting machine needs to be developed. Utility Model Content

[0003] The purpose of this utility model is to provide a sheet metal slitting machine to solve 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 a sheet metal slitting machine, which includes a worktable, and an automatic centering mechanism and a longitudinal shearing mechanism are sequentially arranged on the upper part of the worktable.

[0006] The automatic centering mechanism includes a mounting plate fixedly installed on the upper part of the worktable. Two slides are symmetrically slidably arranged on the mounting plate, and two sets of limiting guide wheels are symmetrically rotatably arranged on the upper part of the two slides.

[0007] The longitudinal slitting mechanism includes a first spindle box and a second spindle box arranged parallel to each other on the upper part of the worktable. The first spindle box and the second spindle box are horizontally rotatably equipped with two cutter shafts. A first motor for driving the two cutter shafts to rotate relative to each other is provided on the outside of the first spindle box. The middle of the two cutter shafts corresponds to the plane where the limiting guide wheel is located, and a disc shear is respectively sleeved on each cutter shaft.

[0008] 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 middle of the two slides.

[0009] 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.

[0010] Furthermore, a first base is provided on the upper part of the worktable, the first spindle box is fixedly provided on one upper end of the first base, and a gearbox is fixedly provided on the other upper end of the first base. Two meshing transmission gears are rotatably provided inside the gearbox, and the central shafts of the two transmission gears are respectively connected to the two cutter shafts through a coupling. The drive shaft of the first motor is connected to the central shaft of the transmission gear located above.

[0011] Furthermore, a speed reducer is fixedly installed on the outside of the gearbox, the first motor is fixedly installed above the speed reducer and its drive shaft is connected to the input end of the speed reducer, and the output end of the speed reducer is connected to the central shaft of the transmission gear located above.

[0012] Furthermore, a motor base is fixedly installed at one end of the upper part of the workbench, and a second motor is fixedly installed on the outside of the motor base. The drive shaft of the second motor is connected to a first lead screw rotatably installed on the inside of the motor base, and a first nut threadedly connected to the first lead screw is fixedly installed at the lower middle part of the first base.

[0013] Furthermore, two second slide rails are symmetrically fixedly arranged on the upper part of the worktable along the first lead screw, and two sets of second sliders are symmetrically arranged on the lower part of the first base, which respectively slide and cooperate with the two second slide rails.

[0014] Furthermore, the two second slide rails are slidably provided with a second base at the end away from the motor base, and the bottom of the second base is symmetrically provided with two third sliders that are respectively slidably engaged with the two second slide rails. The second spindle box is fixedly provided on the second base.

[0015] Furthermore, a third motor is fixedly installed on the side of the first spindle box near the gearbox, and the drive shaft of the third motor is connected to a second lead screw rotatably installed on the other side of the first spindle box. A second nut that is threadedly connected to the second lead screw is fixedly installed on the second spindle box.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] This invention features an automatic centering mechanism at the front end of the slitting mechanism. During operation, the metal sheet to be cut passes between two sets of symmetrical guide rollers of the automatic centering mechanism. Under the limiting and clamping action of the two sets of guide rollers, the metal sheet is automatically centered, preventing deviation during slitting and conveying, and ensuring the subsequent longitudinal shearing effect and dimensional accuracy of the slitting process. Furthermore, the two slides of the automatic centering mechanism are fixedly connected to the upper and lower sides of the drive belt, respectively. Under external force, the two slides can move relative to or away from each other, and with the help of connecting springs, they can adapt to centering and clamping metal sheets of different widths. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is the overall front view of the present invention;

[0021] Figure 3 This is a top view of the entire utility model;

[0022] Figure 4 This is a schematic diagram of the automatic centering mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the transmission connection between the first motor and the cutter shaft of this utility model;

[0024] Figure 6 This is a schematic diagram of the first base drive of this utility model;

[0025] Explanation of reference numerals in the attached drawings: 1. Worktable; 2. Mounting plate; 3. Slide carriage; 4. Limit guide wheel; 5. Transmission pulley; 6. Transmission belt; 7. Upper connecting plate; 8. Lower connecting plate; 9. Spring; 10. First slide rail; 11. First slider; 12. First spindle box; 13. Second spindle box; 14. Cutter shaft; 15. First motor; 16. Disc shear; 17. First base; 18. Gearbox; 19. Transmission gear; 20. Reducer; 21. Motor base; 22. Second motor; 23. First lead screw; 24. First nut; 25. Second slide rail; 26.

[0026] 27. Second slider; 28. Second base; 29. ​​Third slider; 30. Third motor; 31. Second lead screw; 32. Second nut; 33. Coupling. Detailed Implementation

[0027] like Figures 1-6As shown, a sheet metal slitting machine includes a worktable 1, on the upper part of which an automatic centering mechanism and a longitudinal shearing mechanism are sequentially arranged.

[0028] The automatic centering mechanism includes a mounting plate 2 fixedly installed in the middle of the upper part of the workbench 1, and two slides 3 symmetrically slidably arranged on the mounting plate 2. In this embodiment, each slide 3 has a T-shaped structure, and two sets of limiting guide wheels 4 are symmetrically rotatably mounted on the upper part of the two slides 3. There are two limiting guide wheels 4 on the upper part of each slide 3, which are respectively rotatably mounted at the front and rear ends of the upper surface of the horizontal part of the slide 3. Each limiting guide wheel 4 has a grooved wheel structure. The metal sheet to be cut passes between the two sets of symmetrical limiting guide wheels 4. Under the limiting clamping action of the two sets of limiting guide wheels, the automatic centering function of the metal sheet is realized, preventing deviation during longitudinal cutting and conveying.

[0029] Two drive pulleys 5 are symmetrically and rotatably mounted on the mounting plate 2. The axes of the two drive pulleys 5 are horizontally arranged, and a drive belt 6 adapted to them is installed between them. The vertical part of one slide 3 is fixedly connected to the upper side of the drive belt 6 through a horizontal upper connecting plate 7, and the vertical part of the other slide 3 is fixedly connected to the lower side of the drive belt 6 through a horizontal lower connecting plate 8. A spring 9 is connected between the middle parts of the two slides 3. A horizontal first slide rail 10 is fixedly installed in the middle of the mounting plate 2, and a first slider 11 that slides in cooperation with the first slide rail 10 is fixedly installed on each of the two slides 3.

[0030] Since the two slides 3 are fixedly connected to the upper and lower sides of the transmission belt 6 respectively, the two slides 3 can move relative to each other or away from each other under the action of external force, and cooperate with the connecting spring to adapt to the centering and clamping of metal plates of different widths.

[0031] The longitudinal slitting mechanism includes a first spindle box 12 and a second spindle box 13 arranged parallel to each other on the upper part of the worktable 1. The first spindle box 12 and the second spindle box 13 are horizontally rotatably mounted with two cutter shafts 14. A first motor 15 for driving the two cutter shafts 14 to rotate relative to each other is installed on the outside of the first spindle box 12. The middle of the two cutter shafts 14 corresponds to the plane where the limiting guide wheel 4 is located, and a disc shear 16 is respectively mounted on each cutter shaft 14.

[0032] In this example, a first base 17 is mounted on the upper part of the worktable 1. The first spindle box 12 is fixedly mounted on one upper end of the first base 17, and a gearbox 18 is fixedly mounted on the other upper end of the first base 17. Two meshing transmission gears 19 are rotatably mounted inside the gearbox 18. The central shafts of the two transmission gears 19 are connected to the two cutter shafts 14 respectively via couplings 32. The drive shaft of the first motor 15 is connected to the central shaft of the upper transmission gear 19. Specifically, a reducer 20 is fixedly mounted on the outside of the gearbox 18. The first motor 15 is fixedly mounted above the reducer 20, and its drive shaft is connected to the input end of the reducer 20. The output end of the reducer 20 is connected to the central shaft of the upper transmission gear 19.

[0033] After the drive motor 15 is started, the two cutter shafts 14 rotate in opposite directions under the meshing transmission of the two transmission gears 19. During the rotation of the two cutter shafts 14, the corresponding disc shears 16 perform longitudinal shearing on the plate material passing between them, thereby completing the automatic slitting and cutting operation of the plate material.

[0034] In this example, a motor base 21 is fixedly installed at one upper end of the workbench 1. A second motor 22 is fixedly installed on the outer side of the motor base 21. The drive shaft of the second motor 22 is connected to a first lead screw 23 rotatably installed inside the motor base 21. A first nut 24 threadedly connected to the first lead screw 23 is fixedly installed at the lower middle part of the first base 17. Two second slide rails 25 are symmetrically fixedly installed on the upper part of the workbench 1 along the first lead screw 23. Two sets of second sliders 26, which slide and engage with the two second slide rails 25 respectively, are symmetrically installed on the lower part of the first base 17.

[0035] This invention uses a second motor 22 to drive a first lead screw 23 to rotate. Since the first nut 24 at the bottom of the first base 17 is threadedly connected to the first lead screw 23, the rotation of the first lead screw 23 drives the first nut 24 and the first base 17 to perform linear motion, thereby enabling convenient adjustment of the positions of the first spindle box 12, the second spindle box 13, the cutter shaft 14, and the disc shear 16 on the first base to meet different processing needs.

[0036] Additionally, a second base 27 is slidably mounted on the upper part of the two second slide rails 25 at the end away from the motor base 21. Two third sliders 28 are symmetrically mounted on the bottom of the second base 27, each slidingly engaging with one of the two second slide rails 25. The second spindle box 13 is fixedly mounted on the second base 27. A third motor 29 is fixedly mounted on the side of the first spindle box 12 near the gearbox 18. The drive shaft of the third motor 29 is connected to a second lead screw 30 rotatably mounted on the other side of the first spindle box 12. A second nut 31, threadedly connected to the second lead screw 30, is fixedly mounted on the second spindle box 13.

[0037] This utility model drives the second lead screw 30 to rotate via the third motor 29. Since the second nut 31 on the second base 27 is threadedly connected to the second lead screw 30, when the second lead screw 30 rotates, it drives the second nut 31 and the second base 27 to move linearly, so that the second spindle box 13 on the second base 27 is separated from the cutter shaft, which makes it easy to disassemble and replace the disc shear 16 on the cutter shaft.

[0038] 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. A sheet metal slitting machine, characterized in that: Includes a workbench, and an automatic centering mechanism and a longitudinal slitting mechanism are sequentially arranged on the upper part of the workbench; The automatic centering mechanism includes a mounting plate fixedly installed on the upper part of the worktable. Two slides are symmetrically slidably arranged on the mounting plate, and two sets of limiting guide wheels are symmetrically rotatably arranged on the upper part of the two slides. The longitudinal slitting mechanism includes a first spindle box and a second spindle box arranged parallel to each other on the upper part of the worktable. The first spindle box and the second spindle box are horizontally rotatably equipped with two cutter shafts. A first motor for driving the two cutter shafts to rotate relative to each other is provided on the outside of the first spindle box. The middle of the two cutter shafts corresponds to the plane where the limiting guide wheel is located, and a disc shear is respectively sleeved on each cutter shaft.

2. The sheet metal slitting machine according to claim 1, characterized in that: Two drive pulleys are symmetrically 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 middle of the two slides.

3. The sheet metal slitting machine according to claim 2, 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.

4. The sheet metal slitting machine according to claim 1, characterized in that: A first base is provided on the upper part of the worktable. The first spindle box is fixedly provided on one upper end of the first base. A gearbox is fixedly provided on the other upper end of the first base. Two meshing transmission gears are rotatably provided inside the gearbox. The central shafts of the two transmission gears are respectively connected to the two cutter shafts through a coupling. The drive shaft of the first motor is connected to the central shaft of the transmission gear located above.

5. The sheet metal slitting machine according to claim 4, characterized in that: A speed reducer is fixedly installed on the outside of the gearbox. The first motor is fixedly installed above the speed reducer and its drive shaft is connected to the input end of the speed reducer. The output end of the speed reducer is connected to the central shaft of the transmission gear located above.

6. The sheet metal slitting machine according to claim 4, characterized in that: A motor base is fixedly installed at one end of the upper part of the workbench, and a second motor is fixedly installed on the outside of the motor base. The drive shaft of the second motor is connected to a first lead screw that is rotatably installed on the inside of the motor base. A first nut that is threadedly connected to the first lead screw is fixedly installed at the lower middle part of the first base.

7. The sheet metal slitting machine according to claim 6, characterized in that: The upper part of the workbench is symmetrically fixed with two second slide rails along the first lead screw, and the lower part of the first base is symmetrically provided with two sets of second sliders that slide and cooperate with the two second slide rails respectively.

8. The sheet metal slitting machine according to claim 7, characterized in that: Two second slide rails are slidably mounted on a second base at the end away from the motor base. Two third sliders are symmetrically arranged at the bottom of the second base, each of which is slidably engaged with the two second slide rails. The second spindle box is fixedly mounted on the second base.

9. The sheet metal slitting machine according to claim 8, characterized in that: A third motor is fixedly installed on the side of the first spindle box near the gearbox. The drive shaft of the third motor is connected to a second lead screw that is rotatably installed on the other side of the first spindle box. A second nut that is threadedly connected to the second lead screw is fixedly installed on the second spindle box.

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