A device and method for simultaneously taking out multiple stacks of silicon steel sheets for off-line automatic stacking device

Abstract

The present invention provides a multi-sheet simultaneous material taking device and method for an offline automatic lamination device for silicon steel sheets, comprising a screw guide rail, a plurality of sheet pressing devices, a material storage platform, an electromagnetic chuck, an electromagnetic chuck moving device and a controller, wherein the material storage platform stores the silicon steel sheets after sorting, the material storage platform is arranged on the screw guide rail and moves up and down in the screw guide rail, the plurality of sheet pressing devices are arranged around the material storage platform, the electromagnetic chuck is fixed on the electromagnetic chuck moving device, and the controller is electrically connected to the plurality of sheet pressing devices, the electromagnetic chuck, the material storage platform and the electromagnetic chuck moving device respectively. The present invention arranges N silicon steel sheets in a layer in the order of yoke sheet, middle sheet and side sheet, and then feeds them into the material storage platform, the sheet pressing device presses the lower silicon steel sheet, and the electromagnetic chuck absorbs the unpressed multi-layer silicon steel sheet on the top layer for subsequent core lamination. The device can realize the simultaneous material taking and lamination of multiple silicon steel sheets, greatly improving the efficiency of offline lamination of silicon steel sheets.

Description

Technical Field

[0001] The present invention relates to the field of transformer manufacturing equipment, and particularly relates to a multi-laminated simultaneous material taking device and method for an off-line automatic lamination device of silicon steel sheets. Background Art

[0002] The common cores of current transformers are of three types: "day" type, "IE" type, and "E" type. At present, most silicon steel sheet cores are laminated manually. Manual lamination is labor-intensive, repetitive, boring, with low efficiency and unstable quality. The machine lamination that emerged in the past two years, which replaces manual lamination with machines, is the future development direction of intelligent production of transformer cores.

[0003] The automatic lamination device is integrated on the silicon steel transverse shearing line. The method of shearing and laminating simultaneously is called on-line lamination. The advantage of on-line lamination is that there is no need to transfer silicon steel sheets, and the disadvantage is that the lamination process is slow and the high-speed shearing efficiency of the transverse shearing line cannot be fully utilized.

[0004] After the silicon steel sheets are sheared and pre-arranged on the transverse shearing line, and then the silicon steel sheets are automatically laminated by the lamination equipment, this method is called off-line lamination. Off-line lamination can fully utilize the high-speed shearing performance of the transverse shearing line. Shearing and lamination are carried out separately, and the equipment layout and production method are more flexible. When the silicon steel core is laminated off-line automatically, the pneumatic suction cup can only suck and transport one sheet at a time, which greatly limits the efficiency and practicability of machine lamination; the electromagnetic suction cup can suck multiple silicon steel sheets at the same time, but it cannot accurately control the number of adsorbed silicon steel sheets. Summary of the Invention

[0005] In order to overcome the problem that the electromagnetic suction cup cannot accurately suck multiple silicon steel sheets for lamination during existing off-line lamination. The present invention provides a multi-laminated simultaneous material taking device and method for an off-line automatic lamination device of silicon steel sheets. The present invention arranges N silicon steel sheets in a layer, arranges the materials in the order of yoke sheets, middle sheets, and edge sheets, feeds them into the storage table, the pressing device presses the lower-layer silicon steel sheets, and the electromagnetic suction cup sucks the uncompressed multi-layer silicon steel sheets on the top layer for subsequent core lamination. By analogy, simultaneous material taking and lamination of multiple silicon steel sheets during off-line lamination are realized, greatly improving the core lamination efficiency.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A multi-laminated simultaneous material taking device for an off-line automatic lamination device of silicon steel sheets, including a lead screw guide rail, a plurality of pressing devices, a storage table, an electromagnetic suction cup, an electromagnetic suction cup moving device, and a controller. The storage table stores the silicon steel sheets after material arrangement. The storage table is arranged on the lead screw guide rail and moves up and down in the lead screw guide rail. The plurality of pressing devices are arranged around the storage table. The electromagnetic suction cup is fixed on the electromagnetic suction cup moving device. The controller is electrically connected to the plurality of pressing devices, the electromagnetic suction cup, the storage table, and the electromagnetic suction cup moving device respectively.

[0008] The electromagnetic chuck moving device is a manipulator or a truss robot.

[0009] The electromagnetic sucker is provided with an electromagnet, and the electromagnetic suction force can suck up multiple silicon steel sheets at the same time.

[0010] The tablet pressing device includes a first track, a slider, a movable seat, a second track, a bracket, a power device and a pressing head. The first track is arranged on the ground, the movable seat moves on the first track through the slider, the second track is arranged on the movable seat, and the second track and the first track are arranged perpendicular to each other; the bracket is arranged on the second track and moves on the second track; the power device is arranged at the upper end of the bracket and is connected to the pressing head.

[0011] The power device is a cylinder or an electric cylinder.

[0012] The silicon steel sheet comprises a yoke sheet, a middle sheet and a side sheet.

[0013] A method for simultaneously taking out multiple sheets of silicon steel sheets of an offline automatic lamination device, the specific steps are: after the silicon steel sheets are sorted, they are sent to a storage table, a controller controls a sheet pressing device to adjust along the X and Y directions in a horizontal plane, a power device on the sheet pressing device drives a pressing head to move and press the surface of the silicon steel sheets, so that the silicon steel sheets of the lower layer to be taken are pressed and fixed on the storage table, and after the sheet pressing device presses the lower layer of silicon steel sheets, an electromagnetic suction cup absorbs the uppermost layer of unpressed silicon steel sheets for subsequent core lamination.

[0014] After the silicon steel sheets are sorted, they are sent to the storage table. The sorting method is: N silicon steel sheets of the same specification are sorted in a layer in the order of yoke sheets, middle sheets and side sheets.

[0015] The value of N is at least 2.

[0016] The beneficial effects of the present invention are:

[0017] The present invention arranges N silicon steel sheets in a layer in the order of yoke sheets, middle sheets and side sheets, and feeds them into a storage table. A sheet pressing device presses the silicon steel sheets in the lower layer, and an electromagnetic suction cup sucks the topmost unpressed multi-layer silicon steel sheets for subsequent core lamination. By analogy, multiple silicon steel sheets can be taken and stacked simultaneously during off-line lamination, thereby greatly improving the efficiency of core lamination.

[0018] The following is a further description with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the suction yoke structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the suction-lifting middle piece of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the edge piece suction device of the present invention.

[0022] Figure 4 Schematic diagram of the yoke structure.

[0023] Figure 5 This is a schematic diagram of the middle film structure.

[0024] Figure 6 Schematic diagram of the edge piece structure.

[0025] Figure 7 It is a schematic diagram of the overall structure.

[0026] Figure 8 This is the sequence diagram for sorting silicon steel sheets.

[0027] In the figure, the reference numerals are: 1, sheet pressing device; 101, first track; 102, slider; 103, moving seat; 104, second track; 105, bracket; 106, power device; 107, material pressing head; 2, material storage table; 3, silicon steel sheet; 4, electromagnetic suction cup; 5, electromagnetic suction cup moving device. DETAILED DESCRIPTION

[0028] Embodiment 1:

[0029] In order to overcome the problem that the electromagnetic chuck cannot accurately absorb multiple silicon steel sheets for lamination during the existing off-line lamination. Figure 1-8 The shown device and method are for simultaneously taking out multiple stacks of silicon steel sheets for an offline automatic stacking device. The present invention arranges N silicon steel sheets in a layer in the order of yoke sheets, middle sheets and side sheets, and feeds them into a storage table. A sheet pressing device presses the lower silicon steel sheets, and an electromagnetic suction cup absorbs the topmost unpressed multi-layer silicon steel sheets for subsequent core stacking. By analogy, multiple silicon steel sheets can be taken out and stacked simultaneously during offline stacking, thereby greatly improving the efficiency of core stacking.

[0030] A device for simultaneously taking out multiple sheets of silicon steel sheets for an offline automatic stacking device, comprising a screw guide rail, a plurality of sheet pressing devices 1, a material storage table 2, an electromagnetic suction cup 4, an electromagnetic suction cup moving device 5 and a controller, wherein the material storage table 2 stores the silicon steel sheets 3 after sorting, the material storage table 2 is arranged on the screw guide rail and moves up and down in the screw guide rail, the plurality of sheet pressing devices 1 are arranged around the material storage table 2, the electromagnetic suction cup 4 is fixed on the electromagnetic suction cup moving device 5, and the controller is electrically connected to the plurality of sheet pressing devices 1, the electromagnetic suction cup 4, the material storage table 2 and the electromagnetic suction cup moving device 5 respectively.

[0031] The present invention arranges N silicon steel sheets in a layer in the order of yoke sheets, middle sheets and side sheets, and feeds them into a storage table 2. A sheet pressing device 1 presses the lower silicon steel sheet 3, and an electromagnetic suction cup 4 sucks the topmost unpressed multi-layer silicon steel sheet 3 for subsequent core lamination. By analogy, multiple silicon steel sheets can be taken out and stacked simultaneously during off-line lamination, thereby greatly improving the efficiency of core lamination.

[0032] Embodiment 2:

[0033] Based on the embodiment 1, in this embodiment, the electromagnetic chuck moving device 5 is a manipulator or a truss robot.

[0034] The electromagnetic chuck 4 is provided with an electromagnet, and the electromagnetic suction force can suck up multiple silicon steel sheets 3 at the same time.

[0035] In the present invention, the electromagnetic chuck 4 and the electromagnetic chuck moving device 5 constitute an electromagnetic film taking device, and the controller controls the electromagnetic film taking device to move on the material storage platform 2 to take the material and remove it.

[0036] The tablet pressing device 1 includes a first track 101, a slider 102, a movable seat 103, a second track 104, a bracket 105, a power device 106 and a pressing head 107. The first track 101 is arranged on the ground, and the movable seat 103 moves on the first track 101 through the slider 102. The second track 104 is arranged on the movable seat 103, and the second track 104 and the first track 101 are arranged perpendicular to each other; the bracket 105 is arranged on the second track 104 and moves on the second track 104; the power device 106 is arranged at the upper end of the bracket 105 and is connected to the pressing head 107.

[0037] The present invention realizes the movement of the pressing head 107 on the bracket 105 in the X and Y directions on the horizontal plane through the first track 101 and the second track 104, and is suitable for silicon steel sheets 3 of different specifications. The power device 106 can accurately realize the position of the pressing head 107 in the Z direction.

[0038] The power device 106 is a pneumatic cylinder or an electric cylinder.

[0039] The silicon steel sheet 3 includes a yoke sheet, a middle sheet and a side sheet. The yoke sheet, the middle sheet and the side sheet provided in the present invention are all existing silicon steel sheets 3.

[0040] The yoke piece in the present invention is in the shape of an isosceles trapezoid, and a triangular opening is opened inwardly in the middle of the parallel short sides of the trapezoid, and a through hole is arranged on the yoke piece.

[0041] The middle of the middle piece of the present invention is in the shape of a rectangle, the left and right sides are in the shape of isosceles triangles, and a through hole is arranged in the middle of the middle piece.

[0042] In the present invention, the side piece is in the shape of an inverted isosceles trapezoid, and two through holes are arranged on the side piece.

[0043] A method for simultaneously taking out multiple sheets of silicon steel sheets from an off-line automatic stacking device, comprising the following specific steps:

[0044] After the multiple silicon steel sheets are stacked into layers and sorted, they are sent to the material storage table 2. The controller controls the tablet pressing device 1 to adjust along the X and Y directions in the horizontal plane. The power device (106) on the tablet pressing device 1 drives the material pressing head 107 to move and press the upper surface of the multiple silicon steel sheets, so that the silicon steel sheets of the lower layer of the silicon steel sheets to be taken are pressed and fixed on the material storage table 2. After the tablet pressing device 1 presses the silicon steel sheets of the lower layer, the electromagnetic suction cup 4 sucks the multiple silicon steel sheets of the uppermost layer that are not pressed for subsequent iron core lamination.

[0045] After being sorted, the silicon steel sheets 3 are sent to the storage table 2, and the sorting method is: silicon steel sheets 3 of the same specification are sorted in layers of N sheets, in the order of yoke sheets, middle sheets, and side sheets.

[0046] The value of N is at least 2.

[0047] The sorted silicon steel sheets 3 are placed on the storage table 2, and the storage table 2 is arranged on the screw guide rail, and moves in the height direction to keep the distance from the upper surface of the silicon steel sheet 3 on the storage table 2 to the tablet pressing point of the tablet pressing device 1 unchanged. In the present invention, there are at least three tablet pressing devices. In this embodiment, three tablet pressing devices 1 are selected, and three pressing heads 107 of the three tablet pressing devices 1 are each arranged on the screw guide rail and can move in the X and Y axes in the horizontal plane to adapt to the size of the silicon steel sheet.

[0048] Embodiment 3:

[0049] Based on Examples 1 and 2, in this example, the silicon steel sheets 3 are sorted in the order of 6 yoke sheets, 3 middle sheets, and 6 side sheets of the same specification, and the sorted silicon steel sheets 3 are placed on a storage table 2. The storage table 2 is arranged on a screw guide rail and moves in the height direction to keep the distance from the upper surface of the silicon steel sheet 3 on the storage table 2 to the pressing head 107 of the sheet pressing device 1 unchanged.

[0050] The three pressing heads 107 on the three pressing devices 1 are each arranged on a screw guide rail and can move in the X and Y axes in the horizontal plane to adapt to the size of the silicon steel sheet. The electromagnetic chuck moving device 5 and the electromagnetic chuck 4 form an electromagnetic sheet taking device, which adopts a truss structure with electromagnets evenly arranged on the truss. First, take the top 6 yoke sheets, such as Figure 1As shown, the pressing points of the first and third pressing heads 107 respectively press the two corners of the lower side sheet, and the pressing point of the second pressing head 107 passes through the middle notch of the yoke sheet to press the lower middle sheet. At this time, the remaining silicon steel sheets 3 except the top 6 yoke sheets are pressed and fixed on the storage table 2, and the electromagnetic sheet taking device moves to the top of the storage table 2. The electromagnet is energized to suck and remove the top 6 yoke sheets for subsequent lamination. The storage table rises to the height of 6 silicon steel sheets. Next, take out 3 middle sheets, as shown in the figure. Figure 2 As shown, the pressing points of the first and third pressing heads 107 continue to press the lower edge sheets, and the pressing point of the second pressing head 107 is lifted and moved to the side. At this time, except for the top 3 middle sheets, the remaining silicon steel sheets 3 are pressed and fixed on the storage table 2. The electromagnetic sheet taking device moves to the top of the storage table 2, and the electromagnet is energized to suck and remove the top 3 middle sheets for subsequent lamination. The storage table rises to a height of 3 sheets. Next, take 6 edge sheets, as shown in the figure. Figure 3 As shown, the pressing points of the first and third pressing heads 107 are lifted, moved to the two corners of the lower yoke and pressed down, and the pressing point of the second pressing head 107 remains stationary at the side. At this time, except for the top 6 side sheets, the remaining silicon steel sheets 3 are pressed and fixed on the storage table 2, and the electromagnetic sheet taking device moves to the top of the storage table 2. The electromagnet is energized to suck and remove the top 6 side sheets for subsequent lamination. The storage table rises to a height of 6 sheets. And so on, the operation is cyclic. The 6 silicon steel sheets are taken and stacked at the same time.

[0051] The above examples are merely illustrative of the present invention and do not constitute a limitation on the protection scope of the present invention. Any design that is the same or similar to the present invention shall fall within the protection scope of the present invention. The device structures and system methods not described in detail in this embodiment are well known in the industry.

[0052] The techniques and commonly used methods will not be described here one by one.

Claims

1. A multi-stack simultaneous material removal device for an off-line automatic stacking device for silicon steel sheets, characterized in that: The invention comprises a screw guide rail, a plurality of sheet pressing devices (1), a material storage platform (2), an electromagnetic suction cup (4), an electromagnetic suction cup moving device (5) and a controller. After the silicon steel sheets are sorted, they are sent to the material storage platform (2). The sorting method is as follows: N silicon steel sheets of the same specification are used as a layer. The silicon steel sheets include yoke sheets, middle sheets and side sheets. The silicon steel sheets are sorted in the order of yoke sheets, middle sheets and side sheets. The material storage platform (2) stores the sorted silicon steel sheets. The material storage platform (2) is arranged on the screw guide rail and moves up and down in the screw guide rail. The plurality of sheet pressing devices (1) are arranged around the material storage platform (2). The electromagnetic suction cup (4) is fixed on the electromagnetic suction cup moving device (5). The electromagnetic suction cup (4) is provided with an electromagnet. The electromagnetic suction force can simultaneously suck up a plurality of silicon steel sheets. The sheet pressing device (1) comprises a first track (101), a slider (102), and a plurality of silicon steel sheets are sucked up and down by the electromagnetic suction cup. 2), a movable seat (103), a second track (104), a bracket (105), a power device (106) and a material pressing head (107), wherein the first track (101) is arranged on the ground, the movable seat (103) moves on the first track (101) through a slider (102), the second track (104) is arranged on the movable seat (103), and the second track (104) and the first track (101) are arranged perpendicular to each other; the bracket (105) is arranged on the second track (104) and moves on the second track (104); the power device (106) is arranged on the upper end of the bracket (105) and is connected to the material pressing head (107); and the controller is electrically connected to the plurality of tablet pressing devices (1), the electromagnetic suction cup (4), the material storage table (2) and the electromagnetic suction cup moving device (5).

2. The device for simultaneously taking out multiple stacked sheets of silicon steel sheets for off-line automatic stacking device according to claim 1, characterized in that: The electromagnetic suction cup moving device (5) is a manipulator or a truss robot.

3. The device for simultaneously taking out multiple stacked sheets of silicon steel sheets for off-line automatic stacking device according to claim 1, characterized in that: The power device (106) is a pneumatic cylinder or an electric cylinder.

4. The device for simultaneously taking out multiple stacked sheets of silicon steel sheets for off-line automatic stacking device according to claim 1, characterized in that: The value of N is at least 2.

5. A material taking method for a multi-stack simultaneous taking device for an off-line automatic stacking device for silicon steel sheets according to any one of claims 1 to 4, characterized in that: The specific steps are as follows: after a plurality of silicon steel sheets are stacked into layers and sorted, they are sent to a material storage table (2); a controller controls a sheet pressing device (1) to adjust along the X and Y directions in a horizontal plane; a power device (106) on the sheet pressing device (1) drives a material pressing head (107) to move and press the upper surfaces of the plurality of silicon steel sheets so that the silicon steel sheets at the lower layer to be taken are pressed and fixed on the material storage table (2); after the sheet pressing device (1) presses the silicon steel sheets at the lower layer, an electromagnetic suction cup (4) absorbs the plurality of silicon steel sheets at the upper layer that are not pressed for subsequent core lamination.

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