Transformer iron core lamination device and operation method thereof

Abstract

The invention relates to the technical field of transformer iron core lamination, in particular to a transformer iron core lamination device and an operation method thereof.The transformer iron core lamination device comprises an operation cabinet and a frame body, and further comprises a lamination table, a feeding table, a hopper, a shifting piece, a friction roller, a piece arranging assembly, a piece overlapping preventing assembly and a lamination assembly; the lamination table is installed on the operation cabinet in a vertically sliding mode, the feeding tables are symmetrically arranged on the two sides of the lamination table and fixedly connected with the top of the operation table, the hopper is installed on the operation table in a vertically moving mode, and the hopper penetrates through the top wall of the operation table and is matched with the inner walls of the feeding tables in an inserted connection mode. Downward friction force is applied to the edges of the silicon steel sheets through the friction rollers, the silicon steel sheets on the bottom layer can be pushed down, two layers of silicon steel sheets are separated in the initial moving stage, the silicon steel sheets on the bottom layer are not lifted, position deviation caused by falling is avoided, and the lamination precision is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformer core laminations, and in particular to a transformer core lamination device and an operating method thereof. Background Art

[0002] The transformer core is the main magnetic circuit part of the transformer. It is usually made of hot-rolled or cold-rolled silicon steel sheets with a high silicon content and coated with insulating paint on the surface. The core and the coil wound on it form a complete electromagnetic induction system. Among them, the EI type core is mainly composed of an E-type sheet and an I-type sheet. The E-type sheet has three protruding parts, shaped like the letter "E", and the I-type sheet is shaped like the letter "I". When assembling the transformer core, the I-type sheet is used to close the opening part of the E-type sheet, thereby forming a complete magnetic circuit channel. This structure is simple and effective, and can meet the functional requirements of the transformer core to guide the magnetic flux.

[0003] Most of the transformer core lamination devices in the prior art use mechanical arms, suction cups and other devices to grab the positioned silicon steel sheets and move them to the corresponding positions of the laminated core, and then accurately place them on the already stacked silicon steel sheets. The advantage is that it can save labor costs, but the disadvantage is that the lamination efficiency is low. Especially for EI type cores, when stacking, the directions of E sheets and I sheets should be placed alternately. For example, the first layer is placed with the E sheet opening to one side, and then the I sheet is inserted to close the opening; the second layer is placed with the E sheet opening to the other side, and then the I sheet is inserted. Such alternating placement can reduce the air gap of the magnetic circuit, so that the air gaps in the magnetic circuit are evenly distributed in different layers, avoiding the concentration of air gaps in one place, thereby reducing magnetic resistance and effectively reducing eddy current losses. In this way, when laminating the EI type core, the mechanical arm needs to turn 180 degrees for every layer of silicon steel sheets, further reducing the lamination efficiency.

[0004] At present, there is also a transformer core lamination device that adopts a multi-station solution, using a horizontally movable suction cup frame instead of a mechanical arm to move the silicon steel sheets for lamination, with a pair of loading stations, a pair of sheet sorting stations and a stacking station. Different stations perform a lamination step separately, and the two loading stations are symmetrically arranged on both sides of the lamination station, and the two sheet sorting stations are respectively arranged between the two loading stations and the lamination station, which well solves the problem of low efficiency caused by the need for the mechanical arm to move and rotate the silicon steel sheets in the above solution, but there are still the following two problems.

[0005] First, the loading station and the sheet sorting station are not compatible. In the process of moving the silicon steel sheets from the loading station to the stacking station, the position of the silicon steel sheets needs to be adjusted at the sheet sorting station to ensure the stacking accuracy, resulting in more space being occupied and the stacking efficiency needs to be further improved. Second, when the suction cup frame grabs the silicon steel sheets, it is necessary to prevent the occurrence of heavy sheets. In the prior art, the silicon steel sheets adsorbed on the bottom are shaken off by shaking up and down. In this solution, when heavy sheets occur, the position of the dropped silicon steel sheets is easily offset, resulting in a decrease in the subsequent stacking accuracy and affecting the quality of the transformer. Summary of the invention

[0006] The object of the present invention is to provide a transformer core lamination device and an operating method thereof, which can integrate loading and lamination sorting at the same workstation, save space and improve lamination efficiency, and at the same time prevent positional deviation caused by heavy laminations.

[0007] To achieve this object, the present invention adopts the following technical solutions: Provided is a transformer core lamination device, comprising an operating cabinet and a frame, wherein the bottom of the frame is fixedly connected to the top of the operating cabinet, and further comprising a lamination platform, a loading platform, a hopper, a paddle, a friction roller, a sheet sorting assembly, an anti-heavy sheet assembly and a lamination assembly, wherein the lamination platform can be vertically slidably installed on the operating cabinet, the loading platform is symmetrically arranged on both sides of the lamination platform and fixedly connected to the top of the operating platform, the hopper can be vertically movably installed on the operating platform, the hopper passes through the top wall of the operating platform and is plugged into the inner wall of the loading platform, the paddles are symmetrically arranged on both sides of the hopper, the top of the paddle passes through the bottom wall of the hopper and is plugged into the inner wall of the loading platform, It is slidingly connected, and the friction rollers are symmetrically arranged on both sides of the loading platform. The friction rollers can be installed on the loading platform vertically and rotatably. The friction rollers and one end of the silicon steel sheet are in contact with each other. The sheet sorting assembly is installed on the operating cabinet. The sheet sorting assembly is used to drive the paddles to slide horizontally. The anti-weight sheet assembly is installed on the loading platform. The anti-weight sheet assembly is used to drive the friction rollers to rotate. The stacking assembly is installed on the frame. The stacking assembly is used to adsorb and move the silicon steel sheets. When adsorbing the silicon steel sheets, the sheet sorting assembly is used to retract the paddles to facilitate the movement of the silicon steel sheets, and drive the friction rollers to frictionally separate the silicon steel sheets.

[0008] Preferably, it also includes a pair of feeding components, the feeding components include a hydraulic rod, a top plate and a plurality of first tension springs, the bottom of the hydraulic rod is fixedly connected to the bottom wall of the operating cabinet, the top of the telescopic end of the hydraulic rod passes through the bottom wall of the hopper and is fixedly connected to the bottom of the top plate, the top plate is fixedly connected to the inner wall of the hopper, the top of the paddle passes through the top plate and is slidably connected to it, the tops of the plurality of first tension springs are respectively fixedly connected to the four corners of the bottom of the top plate, and the bottom of the first tension spring is fixedly connected to the bottom wall of the hopper.

[0009] Preferably, the sheet sorting assembly also includes a bidirectional screw, a gear and a rack. The bidirectional screw passes through the bottom of the hopper and is rotatably connected thereto. The bidirectional screw passes through the paddle and is threadedly connected thereto. The thread grooves on the two paddles are in opposite directions. The two racks are respectively fixedly connected to the inner walls on both sides of the operating cabinet, and the racks and gears are meshed with each other.

[0010] Preferably, the anti-weight plate assembly also includes a first rotating shaft, a second rotating shaft, a pair of pulleys and a one-way driving mechanism. The first rotating shaft and the second rotating shaft both pass through the top wall of the loading platform and are rotatably connected thereto. The first rotating shaft and the second rotating shaft respectively pass through two pulleys and are coaxially connected thereto. The two pulleys are driven by a belt. The one-way driving mechanism is installed on the loading platform, and the one-way driving mechanism is used to drive the second rotating shaft to rotate in one direction.

[0011] Preferably, the one-way drive mechanism includes a ratchet, a push rod, a plurality of pawls and a plurality of first springs, the ratchet is coaxially connected to the outer periphery of the second rotating shaft, a plurality of grooves are provided at one end of the push rod, the pawl is rotatably connected to the inner wall of the groove, one end of the first spring is fixedly connected to the inner wall of the groove, the other end of the first spring is fixedly connected to the pawl, a square groove is provided on the top of the hopper, the bottom of the push rod passes through the top wall of the loading platform and is plugged into the square groove, when the push rod moves downward, the pawl and the ratchet conflict with each other, the pawl rotates and the ratchet remains stationary, when the bottom of the push rod conflicts with the bottom wall of the square groove, the two paddles approach each other, and when the push rod moves upward, the pawl and the ratchet engage with each other, and the ratchet rotates.

[0012] Preferably, the anti-weight plate assembly also includes a pair of turntables, a pair of connecting rods, a pair of pressure plates and a pair of sliding sleeves. The two turntables are coaxially connected to the two ends of the second rotating shaft respectively. One end of the connecting rod is rotatably connected to the eccentric part of the side of the turntable away from the ratchet. The other end of the connecting rod is hinged to one end of the pressure plate. The pressure plate passes through the sliding sleeve and is slidably connected to it. The bottom of the sliding sleeve is fixedly connected to the top of the loading platform.

[0013] Preferably, the stacking assembly includes a pair of slide rails, a pair of electric sliders, a cross beam, a hydraulic cylinder, a support frame and two groups of electric control suction cups. The slide rails are fixedly connected to the inner wall of the frame, the electric slider is slidably connected to the outer periphery of the slide rails, the two ends of the cross beam are respectively fixedly connected to the two sliders, the top of the hydraulic cylinder is fixedly connected to the bottom of the cross beam, the bottom of the telescopic end of the hydraulic cylinder is fixedly connected to the top of the support frame, the two groups of electric control suction cups are symmetrically distributed on both sides of the hydraulic cylinder, each group of electric control suction cups includes multiple electric control suction cups, the top of the electric control suction cup passes through the support frame and is fixedly connected to it, and the top of the push rod is fixedly connected to the support frame.

[0014] Preferably, it also includes a height adaptation component, which includes an insert block, a plurality of second tension springs and a pair of second springs, one end of the second tension spring is fixedly connected to the top wall of the operating cabinet, the bottom of the stacking table passes through the top wall of the operating cabinet and is slidably connected thereto, the other ends of the plurality of second tension springs are respectively fixedly connected to the four corners of the bottom of the stacking table, a cavity is opened inside the operating cabinet, the insert block is slidably connected to the cavity, one end of the second spring is fixedly connected to the insert block, the other end of the second spring is fixedly connected to the inner wall of the cavity, the top of the insert block passes through the top wall of the cavity and is slidably connected thereto, a slot is opened at one end of the stacking table, the inner wall of one end of the slot is a tooth-shaped structure, one end of the insert block passes through the side wall of the cavity and is snap-fitted with the slot.

[0015] The present invention also provides an operating method for a transformer core lamination device, comprising the following steps: step one: a loading assembly is provided on the operating cabinet, which can pull the hopper downward from the loading platform to facilitate patching, and can also push the silicon steel sheet out of the hopper to facilitate grabbing by the electric-controlled suction cup; step two: through the sheet sorting assembly provided on the hopper, while the hopper rises to complete the patching, the two paddles are moved away from each other, so that the positions of the silicon steel sheets can be arranged; step three: through the lamination assembly provided on the frame, the silicon steel sheets in the two loading platforms can be stacked on the lamination platform in sequence to complete the lamination operation, and the two loading platforms are respectively located on both sides of the lamination platform, and the silicon steel sheets inside them are in opposite directions, so that the adjacent two layers of silicon steel sheets can be kept in opposite directions during lamination; step four: an anti-heavy sheet assembly is provided on the loading platform, and in the process of the electric-controlled suction cup lifting the silicon steel sheet, the friction roller rotates in the opposite direction, so that the overlapping silicon steel sheets can be pushed down, and the pressing plate is driven to be inserted between the two layers of silicon steel sheets to prevent the bottom silicon steel sheets from sticking.

[0016] Beneficial effects of the present invention: 1. When laminating, the present invention grasps the silicon steel sheets through the electrically controlled suction cup of the laminating assembly, and when the silicon steel sheets start to rise, the friction roller is driven to rotate in the opposite direction at the same time, and the friction roller applies a downward friction force to the edge of the silicon steel sheets, so that when the silicon steel sheets are heavy, the bottom silicon steel sheets can be pushed down, thereby preventing the heavy sheets from occurring. In addition, since the two layers of silicon steel sheets are separated at the initial stage of movement, the bottom silicon steel sheet does not rise, and will not be shifted in position due to falling, thereby further improving the laminating accuracy.

[0017] 2. The present invention moves the hopper up and down to separate it from the loading platform, which makes it easy to add silicon steel sheets into the hopper. When the hopper rises after patching, the two paddles slide horizontally and away from each other, and the silicon steel sheets are clamped in cooperation with the inner wall of the hopper. The position of the silicon steel sheets can be adjusted to complete the sheet sorting and improve the stacking accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0020] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0021] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 3 .

[0022] Figure 4 The three-dimensional structure of the present invention is shown in FIG. Figure 4 .

[0023] Figure 5 It is a disassembled view showing the structure of the operating cabinet of the present invention.

[0024] Figure 6 It is a sectional view of the operating cabinet structure of the present invention.

[0025] Figure 7 The hopper structure of the present invention is a cross-sectional view Figure 1 .

[0026] Figure 8 The hopper structure of the present invention is a cross-sectional view Figure 2 .

[0027] Fig. 9 The anti-weight sheet assembly structure of the present invention is schematically shown in FIG. Figure 1 .

[0028] Fig.10 The anti-weight sheet assembly structure of the present invention is schematically shown in FIG. Figure 2 .

[0029] Fig.11 It is a sectional view of the push rod structure of the present invention.

[0030] Fig.12 It is a schematic diagram of the structure of the lamination assembly of the present invention.

[0031] Fig.13 yes Figure 6 A magnified view of the structure at center.

[0032] In the figure: 1. Operation cabinet; 10. Cavity; 11. Frame; 12. Stacking table; 120. Slot; 13. Loading table; 14. Hopper; 140. Square trough; 15. Silicon steel sheet; 2. Sheet sorting assembly; 20. Pick; 21. Bidirectional screw; 22. Gear; 23. Rack; 3. Anti-weight sheet assembly; 30. Friction roller; 31. First rotating shaft; 32. Second rotating shaft; 33. Pulley; 34. One-way driving mechanism; 340. Ratchet; 341. Push rod; 342. Groove; 343. Ratchet pawl; 344. First spring; 35. Rotating plate; 36. Connecting rod; 37. Pressing plate; 38. Sliding sleeve; 4. Lamination assembly; 40. Slide rail; 41. Electric slider; 42. Crossbeam; 43. Hydraulic cylinder; 44. Support frame; 45. Electric control suction cup; 5. Feeding assembly; 50. Hydraulic rod; 51. Top plate; 52. First tension spring; 6. Height adaptation component; 60. Insert block; 61. Second tension spring; 62. Second spring. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0035] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figures 1 to 13 As shown: A transformer core lamination device and an operation method thereof include an operating cabinet 1 and a frame 11. The bottom of the frame 11 is fixedly connected to the top of the operating cabinet 1. The main purpose of the frame 11 is to support the lamination assembly 4 and structures such as the lamination table 12 and the loading table 13. It also includes the lamination table 12, the loading table 13, the hopper 14, the paddle 20, the friction roller 30, the sheet sorting assembly 2, the anti-heavy sheet assembly 3 and the lamination assembly 4. In this embodiment, the loading table 13, the hopper 14, the sheet sorting assembly 2 and the anti-heavy sheet assembly 3 are each provided with a pair, and the paddle 20 and the friction roller 30 are each provided with two pairs. The lamination table 12 can be vertically slidably installed on the operating cabinet 1. The two loading tables 13 are symmetrically arranged on both sides of the lamination table 12 and fixedly connected to the top of the operating table. The hopper 14 can be vertically moved. The hopper 14 is installed on the operating table. The hopper 14 passes through the top wall of the operating table and is plugged into the inner wall of the loading platform 13. By moving the hopper 14 up and down to separate it from the loading platform 13, it is convenient to add silicon steel sheets 15 into the hopper 14. The two hoppers 14 are respectively located on both sides of the stacking platform 12, and the silicon steel sheets 15 inside are placed in opposite directions. The two sets of electric control suction cups 45 are used to move the silicon steel sheets 15. The step of adjusting the direction of the silicon steel sheets 15 can be omitted during stacking, thereby improving the stacking efficiency and accuracy. The paddle 20 is symmetrically arranged on both sides of the hopper 14. The top of the paddle 20 passes through the bottom wall of the hopper 14 and is slidably connected to it. When the hopper 14 rises after patching, the paddle 20 is a U-shaped structure, which can be inserted between the inner walls of the silicon steel sheets 15, so that the two paddles 20 slide horizontally and move away from each other, and the inner wall of the hopper 14 is used to clamp the silicon steel sheets 15, so that the position of the silicon steel sheets 15 can be adjusted to complete the sheet sorting. The friction roller 30 is symmetrically arranged on both sides of the loading platform 13. The friction roller 30 can be vertically rotatably installed on the loading platform 13. The friction roller 30 and one end of the silicon steel sheet 15 are in contact with each other. The sheet sorting component 2 is installed on the operating cabinet 1. The sheet sorting component 2 is used to drive the paddle 20 to slide horizontally. The anti-weight sheet component 3 is installed on the loading platform 13. The anti-weight sheet component 3 is used to drive the friction roller 30 to rotate. The stacking component 4 is installed on the frame 11. The stacking component 4 is used to adsorb and move the silicon steel sheet 15. When adsorbing the silicon steel sheet 15, the sheet sorting component 2 is used to retract the paddle 20 to facilitate the movement of the silicon steel sheet 15, and drive the friction roller 30 to frictionally separate the silicon steel sheet 15. During lamination, the electrically controlled suction cup 45 of the lamination assembly 4 grabs the silicon steel sheet 15, and when the silicon steel sheet 15 starts to rise, the friction roller 30 is simultaneously driven to rotate in the opposite direction, and the friction roller 30 applies a downward friction force to the edge of the silicon steel sheet 15, so that when the silicon steel sheet 15 is heavy, the bottom silicon steel sheet 15 can be pushed down, thereby preventing the heavy sheet from occurring. In addition, since the two layers of silicon steel sheets 15 are separated at the initial stage of movement, the bottom silicon steel sheet 15 does not rise, and will not be shifted in position due to falling, thereby further improving the lamination accuracy.

[0038] like Figures 1 to 8 As shown: It also includes a pair of loading components 5, which include a hydraulic rod 50, a top plate 51 and a plurality of first tension springs 52. The bottom of the hydraulic rod 50 is fixedly connected to the bottom wall of the operating cabinet 1, the top of the telescopic end of the hydraulic rod 50 passes through the bottom wall of the hopper 14 and is fixedly connected to the bottom of the top plate 51, the top plate 51 is fixedly connected to the inner wall of the hopper 14, the top of the paddle 20 passes through the top plate 51 and is slidably connected thereto, the tops of the plurality of first tension springs 52 are respectively fixedly connected to the four corners of the bottom of the top plate 51, and the bottom of the first tension spring 52 is fixedly connected to the bottom wall of the hopper 14. The telescopic end of the hydraulic rod 50 is lowered, and the first tension spring 52 contracts at this time, and the top plate 51 drops to the bottom of the hopper 14, and then continues to drive the hopper 14 to drop until it is separated from the loading platform 13, thereby achieving patching, and the telescopic end of the hydraulic rod 50 is pushed up, first driving the hopper 14 to rise and enter the loading platform 13. When the top of the hopper 14 and the top wall of the loading platform 13 collide with each other, the top plate 51 continues to be pushed upward, and the first tension spring 52 is pulled up, which can continue to lift the silicon steel sheet 15 in the hopper 14, so that the surface of the silicon steel sheet 15 at the top can always fit with the electric control suction cup 45 that has descended to the bottom, thereby facilitating grasping.

[0039] like Figures 1 to 8 As shown: The sheet sorting assembly 2 also includes a bidirectional screw 21, a gear 22 and a rack 23. The bidirectional screw 21 passes through the bottom of the hopper 14 and is rotatably connected thereto. The bidirectional screw 21 passes through the paddle 20 and is threadedly connected thereto. The thread grooves on the two paddles 20 are in opposite directions. The two racks 23 are respectively fixedly connected to the inner walls on both sides of the operating cabinet 1, and the racks 23 and the gears 22 are meshed with each other. When the hopper 14 rises to enter the loading platform 13, the gear 22 and the rack 23 are meshed. As the hopper 14 continues to rise, the bidirectional screw 21 is driven to rotate through the meshing transmission between the two. The two paddles 20 are also driven to slide horizontally and move away from each other through the threaded transmission between the bidirectional screw 21 and the two paddles 20, so as to cooperate with the inner wall of the hopper 14 to squeeze and clamp the silicon steel sheet 15 inside it, thereby adjusting the position of the silicon steel sheet 15 so that it is aligned with each other up and down and fits each other left and right.

[0040] like Figures 1 to 11 As shown: The anti-weight plate assembly 3 also includes a first rotating shaft 31, a second rotating shaft 32, a pair of pulleys 33 and a one-way driving mechanism 34. The first rotating shaft 31 and the second rotating shaft 32 both pass through the top wall of the loading platform 13 and are rotatably connected thereto. The first rotating shaft 31 and the second rotating shaft 32 respectively pass through two pulleys 33 and are coaxially connected thereto. The two pulleys 33 are driven by a belt. The one-way driving mechanism 34 is installed on the loading platform 13, and the one-way driving mechanism 34 is used to drive the second rotating shaft 32 to rotate in one direction. When the electric-controlled suction cup 45 grabs the silicon steel sheet 15 and lifts it, the second rotating shaft 32 is driven to rotate through the unidirectional driving mechanism, which drives one of the pulleys 33 to rotate, and the belt transmission between the other pulleys 33 causes the first rotating shaft 31 to drive the two friction rollers 30 to rotate, and the rotation direction of the friction rollers 30 is opposite to the movement direction of the silicon steel sheet 15, so that it generates friction with the side wall of the silicon steel sheet 15. When the silicon steel sheet 15 is heavy, the silicon steel sheet 15 adsorbed on the bottom layer can be pushed off to prevent it from being lifted along with the upper silicon steel sheet 15, thereby achieving the effect of preventing heavy sheets. In addition, since the bottom silicon steel sheet 15 is not lifted, there will be no positional deviation, which further improves the stacking accuracy.

[0041] like Figures 1 to 11 As shown: The one-way driving mechanism 34 includes a ratchet 340, a push rod 341, a plurality of pawls 343 and a plurality of first springs 344. The ratchet 340 is coaxially connected to the outer periphery of the second rotating shaft 32. A plurality of grooves 342 are provided at one end of the push rod 341. The pawls 343 are rotatably connected to the inner walls of the grooves 342. One end of the first spring 344 is fixedly connected to the inner walls of the grooves 342. The other end of the first spring 344 is fixedly connected to the pawl 343. A square groove 140 is provided on the top of the hopper 14. The bottom of the push rod 341 passes through the top wall of the loading platform 13 and is plugged into the square groove 140. The push rod 341 moves up and down following the electric control suction cup 45. When the push rod 341 moves downward, the pawl 343 and the ratchet 340 collide with each other, the pawl 343 rotates and the ratchet 340 remains stationary. At this time, the push rod 341 drives the pawl 343 to move downward, the ratchet 340 squeezes the pawl 343 to rotate, the first spring 344 is compressed, and the friction roller 30 is stationary to prevent the silicon steel sheet 15 from being affected before grabbing. When the bottom of the push rod 341 and the bottom wall of the square groove 140 collide with each other, the two paddles 20 approach each other, and the bottom of the electric control suction cup 45 fits the silicon steel sheet 15. Due to the squeezing of the push rod 341, the hopper 14 slides down a certain distance in the loading platform 13, so that the two paddles 20 approach each other, preventing the paddles 20 from having too much clamping force on the silicon steel sheet 15 during the subsequent lifting process. When the push rod 341 moves upward, the pawl 343 and the ratchet 340 mesh with each other, and the ratchet 340 rotates. At this time, the ratchet wheel 340 and the ratchet pawl 343 on the push rod 341 are meshed with each other for transmission. As the push rod 341 rises, the ratchet wheel 340 rotates and drives the friction roller 30 to work, thereby achieving an anti-weighting effect.

[0042] like Figures 1 to 11 As shown: The anti-heavy sheet assembly 3 further includes a pair of rotating disks 35, a pair of connecting rods 36, a pair of pressing plates 37 and a pair of sliding sleeves 38. The two rotating disks 35 are coaxially connected to the two ends of the second rotating shaft 32, one end of the connecting rod 36 is rotatably connected to the eccentric part of the rotating disk 35 away from the ratchet 340, and the other end of the connecting rod 36 is hinged to one end of the pressing plate 37. The pressing plate 37 passes through the sliding sleeve 38 and is slidably connected thereto. The bottom of the sliding sleeve 38 is fixedly connected to the top of the loading platform 13. When the second rotating shaft 32 rotates, the two rotating disks 35 are driven to rotate at the same time, and the rotating disk 35 pushes one end of the connecting rod 36 to make a circular motion, and the other end of the connecting rod 36 pushes the pressing plate 37 to slide horizontally along the sliding sleeve 38, so that when the silicon steel sheet 15 is grabbed and a heavy sheet occurs, the pressing plate 37 can be inserted into the gap between the two layers of silicon steel sheets 15 pushed out by the friction roller 30, and the silicon steel sheet 15 at the bottom layer is pressed to prevent it from adhering to the silicon steel sheet 15 at the top layer, thereby further achieving the anti-heavy sheet effect.

[0043] like Figures 1 to 12 As shown: The lamination assembly 4 includes a pair of slide rails 40, a pair of electric sliders 41, a cross beam 42, a hydraulic cylinder 43, a support frame 44 and two groups of electric control suction cups 45. The slide rails 40 are fixedly connected to the inner wall of the frame 11, the electric slider 41 is slidably connected to the periphery of the slide rails 40, the two ends of the cross beam 42 are respectively fixedly connected to the two sliders, the top of the hydraulic cylinder 43 is fixedly connected to the bottom of the cross beam 42, the bottom of the telescopic end of the hydraulic cylinder 43 is fixedly connected to the top of the support frame 44, the two groups of electric control suction cups 45 are symmetrically distributed on both sides of the hydraulic cylinder 43, each group of electric control suction cups 45 includes multiple electric control suction cups 45, the top of the electric control suction cup 45 passes through the support frame 44 and is fixedly connected to it, and the top of the push rod 341 is fixedly connected to the support frame 44. The hydraulic cylinder 43 is operated to push the support frame 44 down. The positions of the two groups of electric-controlled suction cups 45 correspond to one of the loading platforms 13 and the stacking platform 12 respectively. The two groups of electric-controlled suction cups 45 are operated respectively. The electric-controlled suction cup 45 located on the top of the loading platform 13 grabs the silicon steel sheet 15, and the electric-controlled suction cup 45 located on the top of the stacking platform 12 stacks the silicon steel sheet 15 adsorbed at its bottom on the top of the stacking platform 12 and squeezes it downward to make it stacked accurately. Then the support frame 44 rises, and the electric slider 41 drives the hydraulic cylinder 43 together with the support frame 44 and the silicon steel sheet 15 to move horizontally along the guide rail. Then the above operation is repeated to perform continuous stacking operation.

[0044] like Figures 1 to 13 As shown: It also includes a height adaptation component 6, which includes an insert block 60, a plurality of second tension springs 61 and a pair of second springs 62, one end of the second tension spring 61 is fixedly connected to the top wall of the operating cabinet 1, the bottom of the stacking table 12 passes through the top wall of the operating cabinet 1 and is slidably connected thereto, the other ends of the plurality of second tension springs 61 are respectively fixedly connected to the four corners of the bottom of the stacking table 12, a cavity 10 is provided inside the operating cabinet 1, the insert block 60 is slidably connected to the cavity 10, one end of the second spring 62 is fixedly connected to the insert block 60, the other end of the second spring 62 is fixedly connected to the inner wall of the cavity 10, the top of the insert block 60 passes through the top wall of the cavity 10 and is slidably connected thereto, a slot 120 is provided at one end of the stacking table 12, the inner wall of one end of the slot 120 is a tooth-shaped structure, one end of the insert block 60 passes through the side wall of the cavity 10 and is snap-fitted with the slot 120. When the electric control suction cup 45 drives the silicon steel sheet 15 to be stacked on the top of the stacking platform 12, it is squeezed downward at the same time, so that the stacking platform 12 slides downward on the top of the operating cabinet 1, and the inner wall of the slot 120 squeezes the plug block 60 to make it slide horizontally toward the end away from the stacking platform 12, and the second spring 62 is compressed. Then, the second spring 62 pushes one end of the plug block 60 to re-engage with the slot 120 through the rebound. Due to the tooth-like structure of the inner wall of the slot 120, the position where the plug block 60 and the slot 120 are engaged each time the stacking platform 12 is pressed down is raised a section, so that although the height of the stacking platform 12 is reduced, the stacking gap is always stable, so that the height of the silicon steel sheet 15 on the top of the stacking platform 12 is always consistent with the height of the silicon steel sheet 15 in the loading platform 13, preventing the silicon steel sheet 15 from falling and causing deviation when the electric control suction cup 45 is stacking. After the stacking is completed, the plug block 60 is pushed to separate it from the slot 120, and the rebound of the second tension spring 61 can pull the stacking platform 12 to rise to its original position again.

[0045] The present embodiment also provides an operating method of a transformer core lamination device, comprising the following steps: step one: a loading assembly 5 is provided on the operating cabinet 1, which can pull the hopper 14 downward from the loading platform 13 to facilitate patching, and can also push the silicon steel sheet 15 out of the hopper 14 to facilitate the grabbing of the electric control suction cup 45; step two: through the sheet arrangement assembly 2 provided on the hopper 14, when the hopper 14 rises to complete the patching, the two picks 20 are moved away from each other, so that the position of the silicon steel sheet 15 can be arranged; step three: through the lamination assembly 4 provided on the frame 11, the The silicon steel sheets 15 in the two loading tables 13 are stacked on the stacking table 12 in sequence to complete the stacking operation, and the two loading tables 13 are respectively located on both sides of the stacking table 12, and the silicon steel sheets 15 inside them are in opposite directions, which can keep the two adjacent layers of silicon steel sheets 15 in opposite directions during stacking. Step four: An anti-weight sheet assembly 3 is provided on the loading table 13. In the process of the electric control suction cup 45 lifting the silicon steel sheet 15, the friction roller 30 rotates in the opposite direction, which can push the overlapping silicon steel sheets 15 down, and drive the pressure plate 37 to be inserted between the two layers of silicon steel sheets 15 to prevent the bottom silicon steel sheet 15 from sticking.

[0046] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not limiting, but are only for the convenience of clearly describing the positional relationship and function between the various components.

Claims

1. A transformer core lamination device, comprising an operating cabinet (1) and a frame (11), wherein the bottom of the frame (11) is fixedly connected to the top of the operating cabinet (1), characterized in that: The machine also includes a stacking table (12), a loading table (13), a hopper (14), a paddle (20), a friction roller (30), a sheet sorting assembly (2), an anti-heavy sheet assembly (3) and a stacking assembly (4). The stacking table (12) can be vertically slidably mounted on the operating cabinet (1). The loading table (13) is symmetrically arranged on both sides of the stacking table (12) and fixedly connected to the top of the operating table. The hopper (14) can be vertically movably mounted on the operating table. The hopper (14) passes through the top wall of the operating table and is plugged into the inner wall of the loading table (13). The paddle (20) is symmetrically arranged on both sides of the hopper (14). The top of the paddle (20) passes through the bottom wall of the hopper (14) and is slidably connected to it. The friction roller (30) is symmetrically arranged on both sides of the loading table (13). The friction roller (30) is mounted on the loading platform (13) so as to be vertically rotatable. The friction roller (30) and one end of the silicon steel sheet (15) are in contact with each other. The sheet sorting assembly (2) is mounted on the operating cabinet (1). The sheet sorting assembly (2) is used to drive the paddle (20) to slide horizontally. The anti-weight sheet assembly (3) is mounted on the loading platform (13). The anti-weight sheet assembly (3) is used to drive the friction roller (30) to rotate. The stacking assembly (4) is mounted on the frame (11). The stacking assembly (4) is used to absorb and move the silicon steel sheet (15). When the silicon steel sheet (15) is absorbed, the sheet sorting assembly (2) is used to retract the paddle (20) to facilitate the movement of the silicon steel sheet (15), and the friction roller (30) is driven to separate the silicon steel sheet (15) by friction.

2. A transformer core lamination device according to claim 1, characterized in that: The machine also comprises a pair of loading assemblies (5), the loading assemblies (5) comprising a hydraulic rod (50), a top plate (51) and a plurality of first tension springs (52), the bottom of the hydraulic rod (50) being fixedly connected to the bottom wall of the operating cabinet (1), the top of the telescopic end of the hydraulic rod (50) passing through the bottom wall of the hopper (14) and being fixedly connected to the bottom of the top plate (51), the top plate (51) being fixedly connected to the inner wall of the hopper (14), the top of the paddle (20) passing through the top plate (51) and being slidably connected thereto, the tops of the plurality of first tension springs (52) being fixedly connected to the four corners of the bottom of the top plate (51) respectively, and the bottom of the first tension springs (52) being fixedly connected to the bottom wall of the hopper (14).

3. A transformer core lamination device according to claim 2, characterized in that: The sheet sorting assembly (2) further comprises a bidirectional screw (21), a gear (22) and a rack (23), wherein the bidirectional screw (21) passes through the bottom of the hopper (14) and is rotatably connected thereto, the bidirectional screw (21) passes through the paddle (20) and is threadedly connected thereto, the thread grooves on the two paddles (20) are in opposite directions, the two racks (23) are respectively fixedly connected to the inner walls on both sides of the operating cabinet (1), and the racks (23) and the gears (22) are meshed with each other.

4. The transformer core lamination device according to claim 1, characterized in that: The anti-weight sheet assembly (3) further comprises a first rotating shaft (31), a second rotating shaft (32), a pair of pulleys (33) and a one-way driving mechanism (34); the first rotating shaft (31) and the second rotating shaft (32) both pass through the top wall of the loading platform (13) and are rotatably connected thereto; the first rotating shaft (31) and the second rotating shaft (32) respectively pass through two pulleys (33) and are coaxially connected thereto; the two pulleys (33) are driven by a belt; the one-way driving mechanism (34) is mounted on the loading platform (13), and is used to drive the second rotating shaft (32) to rotate in one direction.

5. A transformer core lamination device according to claim 4, characterized in that: The one-way driving mechanism (34) comprises a ratchet (340), a push rod (341), a plurality of ratchet pawls (343) and a plurality of first springs (344); the ratchet (340) is coaxially connected to the periphery of the second rotating shaft (32); a plurality of grooves (342) are formed at one end of the push rod (341); the ratchet pawls (343) are rotatably connected to the inner walls of the grooves (342); one end of the first spring (344) is fixedly connected to the inner walls of the grooves (342); the other end of the first spring (344) is fixedly connected to the ratchet pawls (343); a square groove (140) is formed at the top of the hopper (14); the bottom of the push rod (341) passes through the top wall of the loading platform (13) and is plugged into and matched with the square groove (140); When the push rod (341) moves downward, the pawl (343) and the ratchet wheel (340) come into contact with each other, the pawl (343) rotates and the ratchet wheel (340) remains stationary; When the bottom of the push rod (341) and the bottom wall of the square groove (140) collide with each other, the two paddles (20) approach each other; When the push rod (341) moves upward, the pawl (343) and the ratchet wheel (340) mesh with each other, and the ratchet wheel (340) rotates.

6. The transformer core lamination device according to claim 5, characterized in that: The anti-weight plate assembly (3) further comprises a pair of rotating disks (35), a pair of connecting rods (36), a pair of pressing plates (37) and a pair of sliding sleeves (38). The two rotating disks (35) are respectively coaxially connected to two ends of the second rotating shaft (32). One end of the connecting rod (36) is rotatably connected to an eccentric portion of a side of the rotating disk (35) away from the ratchet wheel (340). The other end of the connecting rod (36) is hinged to one end of the pressing plate (37). The pressing plate (37) passes through the sliding sleeve (38) and is slidably connected thereto. The bottom of the sliding sleeve (38) is fixedly connected to the top of the loading platform (13).

7. The transformer core lamination device according to claim 5, characterized in that: The lamination assembly (4) comprises a pair of slide rails (40), a pair of electric sliders (41), a cross beam (42), a hydraulic cylinder (43), a support frame (44) and two groups of electric control suction cups (45). The slide rails (40) are fixedly connected to the inner wall of the frame (11). The electric slider (41) is slidably connected to the outer periphery of the slide rails (40). The two ends of the cross beam (42) are respectively fixedly connected to the two sliders. The top of the hydraulic cylinder (43) is fixedly connected to the bottom of the cross beam (42). The bottom of the telescopic end of the hydraulic cylinder (43) is fixedly connected to the top of the support frame (44). The two groups of electric control suction cups (45) are symmetrically distributed on both sides of the hydraulic cylinder (43). Each group of electric control suction cups (45) comprises a plurality of electric control suction cups (45). The top of the electric control suction cup (45) passes through the support frame (44) and is fixedly connected thereto. The top of the push rod (341) is fixedly connected to the support frame (44).

8. The transformer core lamination device according to claim 1, characterized in that: The height adaptation component (6) further comprises an insert (60), a plurality of second tension springs (61) and a pair of second springs (62), one end of the second tension spring (61) being fixedly connected to the top wall of the operating cabinet (1), the bottom of the stacking platform (12) passing through the top wall of the operating cabinet (1) and being slidably connected thereto, the other ends of the plurality of second tension springs (61) being fixedly connected to the four corners of the bottom of the stacking platform (12), the operating cabinet (1) being provided with a cavity (10), the insert (60) being fixedly connected to the top wall of the operating cabinet (1), and the second tension spring (61) being fixedly connected to the four corners of the bottom of the stacking platform (12). The second spring (60) is slidably connected to the cavity (10), one end of the second spring (62) is fixedly connected to the plug block (60), the other end of the second spring (62) is fixedly connected to the inner wall of the cavity (10), the top of the plug block (60) passes through the top wall of the cavity (10) and is slidably connected thereto, a slot (120) is provided at one end of the stacking table (12), the inner wall of one end of the slot (120) is a tooth-shaped structure, and one end of the plug block (60) passes through the side wall of the cavity (10) and is snap-fitted with the slot (120).

9. A method for operating a transformer core lamination device, characterized in that: The method comprises the following steps: Step 1: a loading assembly (5) is arranged on the operating cabinet (1), which can pull the hopper (14) downward from the loading platform (13) to facilitate patching, and can also push the silicon steel sheet (15) out of the hopper (14) to facilitate grabbing by the electric control suction cup (45); Step 2: by using a sheet arrangement assembly (2) provided on the hopper (14), while the hopper (14) is rising to complete the patching, the two picks (20) are moved away from each other, so that the positions of the silicon steel sheets (15) can be arranged; Step 3: Through the lamination assembly (4) arranged on the frame (11), the silicon steel sheets (15) in the two loading platforms (13) can be stacked on the lamination platform (12) in sequence to complete the lamination operation, and the two loading platforms (13) are respectively located on both sides of the lamination platform (12), and the silicon steel sheets (15) inside them are in opposite directions, so that the directions of two adjacent layers of silicon steel sheets (15) can be kept in opposite directions during lamination; Step 4: An anti-weight sheet assembly (3) is provided on the loading platform (13). When the electric-controlled suction cup (45) lifts the silicon steel sheet (15), the friction roller (30) rotates in the opposite direction, which can push down the overlapping silicon steel sheets (15) and drive the pressure plate (37) to be inserted between the two layers of silicon steel sheets (15) to prevent the bottom silicon steel sheet (15) from sticking.

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