An automated silicon steel sheet inserting device and inserting method based on a rocker arm structure

Abstract

The present application relates to the technical field of transformer production equipment, and in particular to an automated silicon steel sheet insertion device and insertion method based on a rocker arm structure. The automated silicon steel sheet insertion device based on a rocker arm structure includes a machine base with two support plates and steel sheet guide rails arranged opposite to each other; two hoppers arranged at intervals, which include two material cavities spaced apart and open at the bottom; a sheet pushing mechanism including a sheet pushing seat, a rocker arm structure and a driving source, the sheet pushing seat having a slide and a first push block and a second push block fixed at intervals on the slide; an auxiliary unloading mechanism including a grinding plate and a unloader. The hopper, guide rails, etc. are also improved and designed. The present application realizes the automated sheet insertion operation of silicon steel sheets, and makes the sheet insertion process smoother through reasonable structural design. For example, the sheet pushing mechanism accurately pushes the silicon steel sheets, and the auxiliary unloading mechanism ensures smooth unloading. At the same time, it has functions such as dust collection and positioning, thereby improving the efficiency and quality of silicon steel sheet insertion.

Description

Technical Field

[0001] The present application relates to the technical field of transformer production equipment, and in particular to an automated silicon steel sheet insertion device and method based on a rocker arm structure. Background Art

[0002] In the manufacturing process of electronic and electrical equipment, transformers are key components for achieving voltage conversion and power transmission. The core component of the transformer is usually made of alternating E-shaped and I-shaped silicon steel sheets. To form a closed magnetic circuit, the silicon steel sheets must be inserted into the coiled center column from both sides of the skeleton in a specific order, and the overall stability and magnetic permeability of the core must be ensured by a fastening structure. When using a common sheet insertion machine, the operator rotates the handwheel to drive the connecting rod mechanism, causing the push block to reciprocate on the guide rail, thereby pushing the arranged silicon steel sheets one by one into the hollow hole of the skeleton until the silicon steel sheets fill the hollow hole of the skeleton and are wedged tightly.

[0003] Common inserting machines are equipped with automatic feeding assemblies for E-shaped and I-shaped silicon steel sheets. These hoppers are strategically located on the machine platform, leveraging the weight of the silicon steel sheets to automatically unload them as they are stacked. However, burrs on the edges of these sheets can easily cause them to become clogged and stuck in the hopper, leading to missed sheets and affecting the quality of the finished product. Summary of the Invention

[0004] In order to improve the smoothness of the feeding of silicon steel sheets in the sheet inserting machine, the present application provides an automated silicon steel sheet inserting device and sheet inserting method based on a rocker arm structure.

[0005] On the one hand, the present application provides an automated silicon steel sheet inserting device based on a rocker arm structure, which adopts the following technical solutions:

[0006] An automated silicon steel sheet inserting device based on a rocker arm structure, comprising:

[0007] The machine base includes a support plate and a steel sheet guide rail. The support plate is provided with two pieces opposite to each other, and the steel sheet guide rail is fixed on the opposite side walls of the two support plates.

[0008] A hopper, the hopper comprising two spaced-apart cavities, the bottoms of the cavities being open, two hoppers being oppositely arranged on the machine base, and the steel sheet guide rail being located below the hoppers;

[0009] The sheet pushing mechanism includes a sheet pushing seat, a rocker arm structure and a driving source. The sheet pushing seat is slidably arranged under each hopper. The sheet pushing seat includes a slide seat and a first push block and a second push block spaced apart on the slide seat. The first push block corresponds to one material cavity, and the second push block corresponds to another material cavity. The rocker arm structure and the driving source are arranged on the machine base to drive the sheet pushing seat to slide.

[0010] The auxiliary unloading mechanism includes a frosting plate and a unloader. A receiving groove is provided on the inner side walls of the two material chambers. The frosting plate is arranged at the opening of the receiving groove. A dust suction hole is provided on the frosting plate. The receiving groove is connected to a negative pressure source. The unloader includes a lifting source and a unloading push plate. The unloading push plate is slidably arranged above the hopper. The lifting source is arranged on the machine base for driving the unloading push plate to rise and fall.

[0011] By adopting the above technical solution, the double material chamber design of the hopper is used for storing different types of silicon steel sheets, and the bottom opening is convenient for unloading; the unloader pushes the silicon steel sheet in the material chamber downward to realize active unloading; during the downward movement of the silicon steel sheet in the material chamber, the silicon steel sheet and the grinding plate slide relative to each other to grind off the burrs on the side of the silicon steel sheet. At the same time, through the negative pressure source connected to the receiving tank and the dust suction holes on the grinding plate, the ground burrs can be sucked into the receiving tank to avoid burr accumulation affecting unloading; the sheet pushing mechanism drives the sheet pushing seat to slide through the rocker arm structure and the driving source, so that the first push block and the second push block push out the silicon steel sheets at the openings at the bottom of the two material chambers in turn, push the pushed silicon steel sheets onto the steel sheet guide rail, and push them into the skeleton slot to complete the sheet insertion operation. The auxiliary unloading mechanism can assist in the unloading of silicon steel sheets, which overall improves the smoothness of silicon steel sheet unloading and the working efficiency of the sheet insertion equipment.

[0012] Preferably, the frosting plate is clamped at the opening of the accommodating groove, and a plurality of fastening plates are provided on the machine base, both ends of the fastening plates are fixed with pins, the pin at one end of the fastening plate is inserted into the hopper, and the pin at the other end of the fastening plate is inserted into the frosting plate.

[0013] By adopting the above technical solution, the frosting plate is clamped at the opening of the receiving groove, and the fastening plate and the pins at both ends are respectively inserted into the hopper and the frosting plate, which can effectively fix the frosting plate to prevent it from shaking or shifting during operation, ensuring the continuous and stable adsorption of silicon steel sheet burrs, and improving the unloading smoothness and finished product quality.

[0014] Preferably, the top surface of the first pushing block and the top surface of the second pushing block are both arranged close to the bottom opening of the corresponding material cavity, and the top surface of the first pushing block is higher than the top surface of the second pushing block;

[0015] The first push block is provided with a first inclined surface, and the second push block is provided with a second inclined surface, and the first inclined surface and the second inclined surface are used to push the silicon steel sheet to drive the silicon steel sheet to move upward;

[0016] A discharge gap for allowing only one silicon steel sheet to pass through is provided between the end surface where the bottom opening of each material cavity is located and the steel sheet guide rail.

[0017] By adopting the above technical solution, the top surfaces of the first push block and the second push block are arranged close to the corresponding hopper openings and the height of the top surface of the first push block is higher than the top surface of the second push block, so that when the pusher seat pushes the silicon steel sheets in different hoppers, the silicon steel sheets in different hoppers fall down in sequence; a discharge gap that is only for one silicon steel sheet to pass through is set between the end surface where the opening at the bottom of each material cavity is located and the steel sheet guide rail, which can ensure that only one silicon steel sheet is pushed out each time, improve the accuracy of sheet insertion, avoid problems such as blockage caused by pushing out multiple sheets, and further improve the smoothness of discharge. When the pusher seat retracts, the first and second inclined surfaces can push the silicon steel sheets located in the discharge gap, causing the silicon steel sheets in the discharge gap to move upward, so as to prevent the silicon steel sheets in the discharge gap from being pushed down to the non-insertion area when the pusher seat retracts.

[0018] Preferably, a pressing plate for pressing the silicon steel plate is provided above each of the steel plate guide rails, and the pressing plate is slidably connected to the machine base; a force-applying member is also provided on the machine base, and the force-applying member is used to drive the pressing plate to slide toward the direction close to the steel plate guide rail.

[0019] By adopting the above technical solution, a sliding pressing plate is arranged above the steel sheet guide rail, and the force-applying member on the machine base drives the pressing plate to slide toward the steel sheet guide rail, which can further ensure the stable transportation of the silicon steel sheet on the steel sheet guide rail, prevent the silicon steel sheet from jumping or deviating during the pushing process, and improve the stability and accuracy of the sheet insertion process.

[0020] Preferably, the support plate is threadedly connected with a mounting bolt, and a connecting sleeve is fixed on one side of the pressing plate, and the connecting sleeve is sleeved outside the mounting bolt; the force-applying member includes a force-applying spring, and the force-applying spring is sleeved outside the mounting bolt and abuts between the connecting sleeve and the nut of the mounting bolt. By adopting the above technical solution, the mounting bolt and the connecting sleeve are cooperated to realize the sliding connection of the pressing plate on the machine base, and then the elastic force of the force-applying spring is used to push the pressing plate to slide toward the direction close to the steel plate guide rail, which can effectively press the silicon steel plate, ensure the stability of the silicon steel plate during transportation, and reduce shaking and deviation. Preferably, the hopper includes two side plates arranged opposite to each other, and the side plates are fixed on the support plate, and three pairs of dividing bars are fixed between the two side plates;

[0021] Two material cavities are formed between the two side plate side walls and the three pairs of outer side walls of the dividing strips.

[0022] By adopting the above technical solution, two material chambers are formed by two side plates and three pairs of partition bars, which can reasonably utilize the space to store silicon steel sheets, ensure the feeding capacity of the equipment, and have a simple structure that is easy to manufacture and maintain.

[0023] Preferably, a plurality of chip suction holes are provided on the inner bottom wall of the accommodating groove, and the chip suction holes are arranged close to the steel sheet guide rail.

[0024] By adopting the above technical solution, a chip suction hole is opened on the bottom wall of the receiving groove close to the steel sheet guide rail, which can more effectively absorb the debris generated when the silicon steel sheet is discharged, further reducing the possibility of debris accumulation on the steel sheet guide rail, and improving the stability of equipment operation and the smoothness of silicon steel sheet discharge and insertion.

[0025] Preferably, the lower end of the accommodating tank is also connected to a dust exhaust pipe, and one end of the dust exhaust pipe can be opened and closed.

[0026] By adopting the above technical solution, when it is necessary to clean the burrs adsorbed on the frosting plate and the holding tank, the openable and closed ends of the dust exhaust duct can be opened to facilitate the discharge of the burrs, avoid the accumulation of burrs affecting the normal operation of the auxiliary unloading mechanism, ensure the long-term stable operation of the equipment, and continuously improve the smoothness of silicon steel sheet discharge.

[0027] Preferably, a skeleton positioning groove is provided on the steel sheet guide rail, and the skeleton positioning groove is located between the two hoppers. A supporting convex plate is fixed in the skeleton positioning groove, and one end of the supporting convex plate gradually shrinks in the direction away from the steel sheet guide rail.

[0028] By adopting the above technical solution, the frame positioning groove can accurately fix the position of the frame, and the supporting convex plate provides support for the frame, ensuring the accuracy and efficiency of the insertion operation.

[0029] On the other hand, the present application also provides a method for inserting a sheet, comprising the following steps:

[0030] S1, place the E-shaped silicon steel sheet and the I-shaped silicon steel sheet in the two material chambers of the hopper respectively, then place the frame on the steel sheet guide rail, start the negative pressure source, and make the dust suction holes on the frosting plate generate suction;

[0031] S2, start the lifting source, drive the unloading push plate to descend, squeeze the silicon steel sheet in the material cavity, and realize the unloading of the silicon steel sheet;

[0032] S3, start the driving source to drive the rocker arm structure to move, thereby driving the sheet pusher to slide between the two steel sheet guide rails. The first push block and the second push block on the sheet pusher push the silicon steel sheet at the bottom opening of the material chamber onto the steel sheet guide rails and then into the frame;

[0033] S4, repeat steps S2 and S3 until the hollow hole of the skeleton is filled with silicon steel sheets and wedged tightly, finally completing the core insertion work.

[0034] By adopting the above technical solution, E-shaped silicon steel sheets and I-shaped silicon steel sheets are placed in the two material chambers of the hopper respectively, and the material is squeezed out by using the material discharge push plate, and the silicon steel sheet is pushed out to the steel sheet guide rail and inserted into the frame in conjunction with the sheet pusher seat, which can efficiently complete the iron core insertion; the negative pressure source is used to make the dust suction holes of the grinding plate generate suction, which can suck the burrs ground off during the silicon steel sheet discharge into the receiving groove, avoiding the accumulation of burrs affecting the discharge, and improving the smoothness of the discharge and the quality of the finished product.

[0035] In summary, this application has at least one of the following beneficial effects:

[0036] 1. This application is provided with a grinding plate. When the silicon steel sheet moves downward in the material chamber, the silicon steel sheet and the grinding plate slide relative to each other to grind off the burrs on the side of the silicon steel sheet. At the same time, the negative pressure source connected to the receiving groove and the dust suction holes on the grinding plate can suck the removed burrs into the receiving groove, thereby preventing burr accumulation from affecting material feeding.

[0037] 2. The unloading push plate of the unloader in this application is driven by the lifting source to rise and fall, which can push the silicon steel sheet to unload, further avoiding the silicon steel sheet from being blocked and stuck in the hopper, and ensuring smooth discharge;

[0038] 3. In the present application, the sheet pushing mechanism drives the sheet pushing seat to slide through the rocker arm structure and the driving source, and uses the first push block and the second push block to correspond to different material chambers. When the sheet pushing seat slides, the first push block and the second push block only drive one silicon steel sheet to slide onto the steel sheet guide rail each time, and each time the first push block and the second push block are pushed, the I-shaped silicon steel sheet is automatically stacked on top of the E-shaped silicon steel sheet pushed the previous time, and an insertion action is performed at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the overall structure of the automated silicon steel sheet inserting equipment based on the rocker arm structure in Example 1 of the present application;

[0040] Figure 2 This is a schematic diagram of the structure inside the base in Example 1 of the present application;

[0041] Figure 3 1 is a side view schematic diagram of the structure of the automated silicon steel sheet inserting device based on the rocker arm structure in Example 1 of the present application;

[0042] Figure 4 This is a schematic cross-sectional view of the side panels and separators in Example 1 of the present application;

[0043] Figure 5 This is a schematic diagram of the structure of the fastening plugboard in Example 1 of the present application;

[0044] Figure 6 yes Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0045] Explanation of reference numerals: 1. base; 11. support plate; 12. steel sheet guide rail; 121. frame positioning groove; 13. mounting bolt; 14. supporting convex plate; 15. chassis; 16. first pad; 17. second pad; 2. hopper; 21. side plate; 22. partition bar; 23. material chamber; 231. receiving groove; 2311. chip suction hole; 232. first material chamber; 233. second material chamber; 24. dust exhaust duct; 25. cover; 3. sheet pushing mechanism; 31. sheet pushing seat; 311. slide Seat; 312, first push block; 3121, first inclined surface; 313, second push block; 3131, second inclined surface; 32, rocker arm structure; 321, rocker arm; 322, rocker handle module; 323, connecting plate; 33, driving source; 4, frosting plate; 41, dust suction hole; 5, feeder; 51, lifting source; 52, feeder push plate; 521, elastic pad; 6, negative pressure source; 7, pressing piece; 71, connecting sleeve; 72, feed notch; 8, force spring; 9, fastening plug plate; 91, latch. DETAILED DESCRIPTION

[0046] The following is combined with Figures 1-6 This application is described in further detail.

[0047] Example 1:

[0048] The embodiment of the present application provides an automated silicon steel sheet insertion device based on a rocker arm structure, comprising a machine base 1, a hopper 2, a sheet pushing mechanism 3 and an auxiliary unloading mechanism, wherein the machine base 1 provides support and installation foundation for the entire equipment, the hopper 2 is used to store silicon steel sheets, the sheet pushing mechanism 3 pushes the silicon steel sheets falling from the hopper 2 to a designated position, and the auxiliary unloading mechanism removes burrs on the edges of the silicon steel sheets and assists in unloading. Such coordination enables the silicon steel sheets to be unloaded smoothly and the insertion operation to be completed, thereby improving the efficiency and quality of the insertion.

[0049] Reference Figure 1 and Figure 2The machine base 1 includes a support plate 11, a steel sheet guide rail 12, and a base frame 15 fixed below the support plate 11. The support plates 11 are arranged in two oppositely spaced pieces, and are generally rectangular in shape. Two base frames 15 are arranged below the support plates 11, and both support plates 11 are fixed to the base frame 15 by bolts or other fasteners. A steel sheet guide rail 12 is fixed to the side wall of each support plate 11 by bolts or welding, and the steel sheet guide rail 12 is located between the two support plates 11. The steel sheet guide rail 12 can be made of aluminum alloy, and the surface of the steel sheet guide rail 12 is smoothed to reduce the friction when the silicon steel sheet slides on it. The steel sheet guide rail 12 can be fixed to the support plate 11 by welding or bolting. To facilitate the placement of the frame, a frame positioning groove 121 is provided on the steel sheet guide rail 12. A support protrusion 14 is fixed to the bottom wall of the frame positioning groove 121, and one end of the support protrusion 14 gradually tapers away from the steel sheet guide rail 12. The skeleton positioning groove 121 is used to accurately place the skeleton, and the supporting protrusion 14 can provide support for the skeleton placed in the skeleton positioning groove 121 .

[0050] Reference Figure 1 and Figure 2 A hopper 2 is fixed on both sides of the supporting protrusion 14. The hopper 2 includes a side panel 21 and a partition bar 22. Two side panels 21 are arranged opposite to each other, and the bottom of the side panel 21 is fixed to the upper end surface of the supporting plate 11, and the steel sheet guide rail 12 is located below the side panel 21. Three pairs of partition bars 22 are fixed between the two side panels 21 at intervals. The partition bars 22 are fixed vertically on the side walls of the side panels 21. In one hopper 2, two material chambers 23 with both ends open are formed between the outer walls of the two side panels 21 and the three pairs of partition bars 22. Of the two material chambers 23, the material chamber 23 close to the supporting protrusion 14 is set as the first material chamber 232, and the material chamber 23 away from the supporting protrusion 14 is set as the second material chamber 233. In this embodiment, the spacing between the two pairs of dividers 22 on either side is different from that between the middle pair of dividers 22, resulting in different sizes for the first cavity 232 and the second cavity 233, making the first cavity 232 smaller than the second cavity 233. Furthermore, the bottom ends of the pair of dividers 22 located near the supporting protrusion 14 are located at a higher height than the bottom ends of the other two pairs of dividers 22, resulting in the bottom opening of the first cavity 232 being higher than the bottom opening of the second cavity 233. During use, an I-shaped silicon steel sheet is placed in the first cavity 232, and an E-shaped silicon steel sheet is placed in the second cavity 233. The side panels 21 and dividers 22 can be made of metal or plastic and secured together by bolts or welding.

[0051] In other embodiments, the two side plates 21 in the hopper 2 may also be slidably connected to the support plate 11 to achieve a size adjustment function of the hopper 2 .

[0052] Reference Figure 2To ensure that only one silicon steel sheet is discharged from the bottom opening of each cavity 23 during blanking, a pair of first gaskets 16 and a pair of second gaskets 17 are provided below each of the two hoppers 2. The first gaskets 16 and the second gaskets 17 are both fixed to the support plate 11, and the top surface of the first gasket 16 is higher than the top surface of the second gasket 17. The first gasket 16 is provided in correspondence with the first cavity 232, and the second gasket 17 is provided in correspondence with the second cavity 233. A discharge gap is formed between the first gasket 16 and the end surface where the bottom opening of the first cavity 232 is located, allowing an I-shaped silicon steel sheet to pass through. A discharge gap is formed between the second gasket 17 and the end surface where the bottom opening of the second cavity 233 is located, allowing an E-shaped silicon steel sheet to pass through. The size of the discharge gap can be adjusted according to the thickness of the silicon steel sheet in each cavity 23. When the I-shaped silicon steel sheet in the first material cavity 232 is discharged, it will fall onto the first pad 16; when the E-shaped silicon steel sheet in the second material cavity 233 is discharged, it will fall onto the second pad 17.

[0053] Reference Figure 1 and Figure 3 , the auxiliary unloading mechanism includes a frosting plate 4 and a unloading device 5. Figure 4 and Figure 5 , a receiving groove 231 is provided on the inner wall of each material cavity 23, and the receiving groove 231 is adapted to the inner wall contour of one side of the material cavity 23. The frosting plate 4 is snapped into the opening of the receiving groove 231, completely covering the opening of the receiving groove 231, so that a cavity is formed between the inner wall of the receiving groove 231 and the frosting plate 4. A plurality of fastening plates 9 are also provided on the machine base 1, and latches 91 are fixed at both ends of the fastening plates 9. The latch 91 at one end of the fastening plates 9 is inserted into the hopper 2, and the latch 91 at the other end of the fastening plates 9 is inserted into the frosting plate 4, realizing a detachable connection of the frosting plate 4 on the hopper 2. In this embodiment, four frosting plates 4 are provided on one hopper 2, and eight fastening plates 9 are installed on one hopper 2. The fastening plates 9 can be made of metal, and the latches 91 are fixed to both ends of the fastening plates 9 by welding or integral molding. The frosting plate 4 is provided with a plurality of dust suction holes 41 , which are evenly distributed on the frosting plate 4 , and the hole size is designed according to actual needs. The receiving groove 231 is connected to the negative pressure source 6 through a hose, and the negative pressure source 6 can be a vacuum pump.

[0054] Reference Figure 3 and Figure 4, two unloaders 5 are provided corresponding to the hopper 2. The unloader 5 includes a lifting source 51 and a unloading push plate 52. The unloading push plate 52 is slidably provided above the hopper 2, and the lifting source 51 is provided on the machine base 1, and is used to drive the unloading push plate 52 to rise and fall. The lifting source 51 can be a cylinder or an electric push rod. When the unloading push plate 52 descends, it can push the silicon steel sheet in the material chamber 23 downward to assist in unloading the silicon steel sheet. The unloading push plate 52 generally adopts a flat plate structure, and its size is adapted to the cross-section of the material chamber 23 to ensure that the silicon steel sheet can be effectively pushed; and an elastic pad 521 is provided at the bottom of the unloading push plate 52, which can achieve a certain degree of deformation buffering after the unloading push plate 52 is pressurized, and is not easy to damage the surface of the silicon steel sheet when pushing the silicon steel sheet. When the blanking device 5 pushes the silicon steel sheet to discharge, the silicon steel sheet slides relative to the blanking device 5, and the abrasive particles on the surface of the abrasive plate 4 effectively remove burrs from the edge of the silicon steel sheet. The negative pressure source 6 is connected to the receiving groove 231 to generate negative pressure to absorb the removed burrs into the receiving groove 231.

[0055] Reference Figure 3 and Figure 4 , a plurality of chip suction holes 2311 are provided on the inner bottom wall of the receiving groove 231, and the chip suction holes 2311 are concentrated near the steel sheet guide rail 12. The chip suction holes 2311 can further absorb the burrs that fall on the steel sheet guide rail 12 into the receiving groove 231, preventing the burrs from accumulating on the steel sheet guide rail 12 and affecting the sliding of the silicon steel sheet. The lower end of the receiving groove 231 is also connected to a dust exhaust pipe 24, and one end of the dust exhaust pipe 24 can be opened and closed. The dust exhaust pipe 24 is made of plastic or metal pipe, and one end of the dust exhaust pipe 24 is threadedly connected to a cover 25 to realize the opening and closing function. When it is necessary to clean the burrs in the receiving groove 231, the cover 25 of the dust exhaust pipe 24 can be opened to discharge the burrs.

[0056] Reference Figure 2 and Figure 3The sheet pushing mechanism 3 includes a sheet pushing seat 31, a rocker arm structure 32 and a driving source 33. A sheet pushing seat 31 is slidably arranged under each hopper 2, and the sheet pushing seat 31 is located between the two steel sheet guide rails 12. The sheet pushing seat 31 includes a slide 311 and a first push block 312 and a second push block 313 spaced apart on the slide 311. The first push block 312 and the second push block 313 are fixed to the slide 311 by bolts or welding. The first push block 312 corresponds to the first material cavity 232, and the second push block 313 corresponds to the second material cavity 233. The top surface of the first push block 312 and the top surface of the second push block 313 are both arranged close to the bottom opening of the corresponding material cavity 23, and the top surface of the first push block 312 is higher than the top surface of the second push block 313. A first inclined surface 3121 is formed on one side of the first push block 312, and a second inclined surface 3131 is formed on one side of the second push block 313. The first inclined surface 3121 and the second inclined surface 3131 are designed to push against the silicon steel sheet when the sheet pusher 31 is reset, thereby driving the silicon steel sheet that has fallen onto the first and second backing strips 16 and 17 upward. The angles of the first and second inclined surfaces 3121 and 3131 are designed based on the thickness of the silicon steel sheet and the pushing requirements.

[0057] Reference Figure 2 and Figure 3 The rocker arm structure 32 and the driving source 33 are arranged on the machine base 1 to drive the sheet pusher seat 31 to slide. The rocker arm structure 32 is located below the steel sheet guide rail 12. The rocker arm structure 32 includes a rocker arm 321, a rocker module 322 and a connecting plate 323 arranged between the two support plates 11. One end of the rocker arm 321 is rotatably connected to the support plate 11, and the connecting plate 323 is slidably connected to the machine base 1 through a sliding hole opened on the support plate 11; one end of the rocker module 322 is rotatably connected to the rocker arm 321, and the other end is rotatably connected to the connecting plate 323. The two slides 311 are fixed on the connecting plate 323 at intervals; the driving source 33 provides power to drive the rocker arm 321 to rotate, so as to realize the reciprocating sliding of the two sheet pushers 31 and realize continuous sheet insertion on both sides of the skeleton. The driving source 33 can be a servo motor.

[0058] Reference Figure 1 and Figure 6A pressing plate 7 is provided above each steel sheet guide rail 12. The pressing plate 7 is located on the side of the hopper 2 close to the skeleton positioning groove 121. The pressing plate 7 slides above the support plate 11 of the machine base 1. The pressing plate 7 is in the shape of a long strip plate, and a feed notch 72 is provided on the side of the pressing plate 7 close to the hopper 2. The inner wall of one end of the feed notch 72 is an inclined surface, which is convenient for the silicon steel sheet to slide under the pressing plate 7. A plurality of mounting bolts 13 are threadedly connected to the support plate 11, and the mounting bolts 13 correspond one-to-one to the pressing plate 7. A connecting sleeve 71 is fixed to one side of the pressing plate 7, and the connecting sleeve 71 is sleeved outside the mounting bolt 13. A plurality of force-applying members are also provided on the machine base 1, and the force-applying members include a force spring 8; the force spring 8 corresponds one-to-one to the mounting bolt 13, and is sleeved outside the corresponding mounting bolt 13, abutting between the connecting sleeve 71 and the nut of the mounting bolt 13. The pressing sheet 7 exerts a certain downward pressure on the silicon steel sheet, thereby achieving tightness in conveying the silicon steel sheet before inserting the sheet.

[0059] The implementation principle of this embodiment is as follows: the transformer skeleton is placed in the skeleton positioning groove 121 of the steel sheet guide rail 12 and supported by the supporting protrusion 14; I-shaped and E-shaped silicon steel sheets are stacked in the first material chamber 232 and the second material chamber 233 of the hopper 2 on both sides, respectively, and at the same time, the negative pressure source 6 is activated to fix the grinding plate 4 to the outside of the receiving groove 231 of the hopper 2 through the fastening plug plate 9. The lifting source 51 of the discharger 5 drives the discharge push plate 52 to press down, assisting the silicon steel sheets to fall. An I-shaped silicon steel sheet in the first material chamber 232 falls onto the first pad 16, and an E-shaped silicon steel sheet in the second material chamber 233 falls onto the second pad 17; during the falling process, the edge of the silicon steel sheet rubs against the grinding plate 4 to remove burrs, and the debris is sucked into the receiving groove 231 by the negative pressure through the dust suction hole 41 and the chip suction hole 2311, and is finally discharged from the dust exhaust pipe 24.

[0060] The drive source 33 drives the rocker arm structure 32 to rotate, driving the connecting plate 323 and the ejector seat 31 fixed thereto to synchronously reciprocate. The first and second ejector blocks 312, 313 within the ejector seat 31 push the I-shaped silicon steel sheet and the E-shaped silicon steel sheet, respectively, causing the E-shaped silicon steel sheet to fall from the second backing strip 17 onto the steel sheet guide rail 12. The I-shaped silicon steel sheet then falls from the first backing strip 16 onto the E-shaped silicon steel sheet on the steel sheet guide rail 12, passing through the feed notch 72 of the press sheet 7 and entering below it. The force spring 8 provides downward pressure through the connecting sleeve 71 to ensure tight conveying, completing the stacking of the I-shaped silicon steel sheet and the E-shaped silicon steel sheet before insertion. The ejector seat 31 continues to slide toward the frame, allowing the completed stacked sheets to be inserted into the frame along the steel sheet guide rail 12.

[0061] After one sheet insertion is complete, the first bevel 3121 of the first push block 312 and the second bevel 3131 of the second push block 313 push the newly blanked silicon steel sheet upward and into position, preparing for the next insertion. Simultaneously, the sheet pusher 31 on the other side performs the same action, achieving alternating and continuous sheet insertion on both sides of the frame. When the set number of sheets has been inserted, the drive source 33 automatically stops. The entire process is synchronized by the rocker arm structure 32, with active blanking and negative pressure chip removal working in tandem. This completely eliminates the jamming problem associated with traditional gravity-based blanking equipment, achieving high-precision, fully automated sheet insertion while eliminating the impact of burrs on the quality of the stacked sheets.

[0062] Example 2:

[0063] The inserting method provided in the embodiment of the present application includes the following steps:

[0064] S1, place the E-shaped and I-shaped silicon steel sheets in the two material chambers 23 of the hopper 2 respectively, then place the skeleton on the steel sheet guide rail 12. After pressing the skeleton, start the negative pressure source 6 to generate suction through the dust suction holes 41 on the grinding plate 4. When placing the silicon steel sheets, pay attention to the arrangement direction of the E-shaped silicon steel sheets to ensure that they can be smoothly inserted into the skeleton. When placing the skeleton on the steel sheet guide rail 12, it must be accurately positioned on the support protrusion 14 of the skeleton positioning groove 121. After starting the negative pressure source 6, it is necessary to check whether the dust suction holes 41 are working properly to ensure that they can effectively absorb the burrs that will be subsequently removed.

[0065] S2: Activate the lifting source 51, driving the unloading push plate 52 downward to squeeze the silicon steel sheets within the material chamber 23, thereby unloading the silicon steel sheets from each material chamber 23. Before activation, check that the lifting source 51's stroke and thrust meet the requirements. Ensure that the unloading push plate 52 descends at a moderate speed and force to avoid damaging the silicon steel sheets.

[0066] S3: Activate the drive source 33, driving the rocker arm structure 32 to move, thereby driving the sheet pusher 31 to slide between the two steel sheet guide rails 12. The first push block 312 and the second push block 313 on the sheet pusher 31 push the silicon steel sheet at the bottom opening of the material chamber 23 onto the steel sheet guide rails 12 and then into the frame. When pushing the silicon steel sheet, the first push block 312 and the second push block 313 must ensure that the silicon steel sheet can accurately enter the frame.

[0067] S4: Repeat steps S2 and S3 until the hollow holes of the skeleton are filled and tightly secured with silicon steel sheets, completing the core insertion process. During this repetitive process, check the silicon steel sheet feeding and the quality of the inserts. If any abnormality is detected, stop the machine immediately for inspection and adjustment.

[0068] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automated silicon steel sheet inserting device based on a rocker arm structure, characterized in that: include: A machine base (1) includes a support plate (11) and a steel sheet guide rail (12), wherein the support plate (11) is provided with two pieces opposite to each other, and the steel sheet guide rail (12) is fixed on opposite side walls of the two support plates (11); A hopper (2), the hopper (2) comprising two spaced-apart cavities (23), the bottom of the cavities (23) being open, two hoppers (2) being arranged opposite to each other on the machine base (1), the steel sheet guide rail (12) being located below the hopper (2); A sheet pushing mechanism (3) includes a sheet pushing seat (31), a rocker arm structure (32) and a driving source (33). The sheet pushing seat (31) is slidably arranged below each of the hoppers (2). The sheet pushing seat (31) includes a slide seat (311) and a first pushing block (312) and a second pushing block (313) spaced apart on the slide seat (311). The first pushing block (312) corresponds to one material cavity (23), and the second pushing block (313) corresponds to another material cavity (23). The rocker arm structure (32) and the driving source (33) are arranged on the machine base (1) and are used to drive the sheet pushing seat (31) to slide. The auxiliary unloading mechanism comprises a frosting plate (4) and a unloader (5), wherein a receiving groove (231) is provided on the inner side walls of the two material chambers (23), the frosting plate (4) is arranged at the opening of the receiving groove (231), the frosting plate (4) is provided with a dust suction hole (41), and the receiving groove (231) is connected to a negative pressure source (6); the unloader (5) comprises a lifting source (51) and a unloading push plate (52), the unloading push plate (52) is slidably provided above the hopper (2), and the lifting source (51) is provided on the machine base (1) for driving the unloading push plate (52) to rise and fall.

2. The automatic silicon steel sheet inserting equipment based on a rocker arm structure according to claim 1 is characterized in that: The frosting plate (4) is clamped at the opening of the accommodating groove (231), and a plurality of fastening plates (9) are also provided on the machine base (1). Both ends of the fastening plates (9) are fixed with latches (91), and the latch (91) at one end of the fastening plates (9) is plugged into the hopper (2), and the latch (91) at the other end of the fastening plates (9) is plugged into the frosting plate (4).

3. The automatic silicon steel sheet inserting equipment based on a rocker arm structure according to claim 2 is characterized in that: The top surface of the first push block (312) and the top surface of the second push block (313) are both arranged close to the bottom opening of the corresponding material cavity (23), and the top surface of the first push block (312) is higher than the top surface of the second push block (313); The first push block (312) is provided with a first inclined surface (3121), and the second push block (313) is provided with a second inclined surface (3131), and the first inclined surface (3121) and the second inclined surface (3131) are used to push the silicon steel sheet to drive the silicon steel sheet to move upward; A discharge gap for allowing only one silicon steel sheet to pass through is provided between the end surface where the bottom opening of each material cavity (23) is located and the steel sheet guide rail (12).

4. The automatic silicon steel sheet inserting equipment based on a rocker arm structure according to claim 1 is characterized in that: A pressing plate (7) for pressing the silicon steel plate is provided above each of the steel plate guide rails (12), and the pressing plate (7) is slidably connected to the machine base (1); a force applying member is also provided on the machine base (1), and the force applying member is used to drive the pressing plate (7) to slide in a direction close to the steel plate guide rail (12).

5. The automatic silicon steel sheet inserting equipment based on a rocker arm structure according to claim 4 is characterized in that: The support plate (11) is threadedly connected to a mounting bolt (13), a connecting sleeve (71) is fixed to one side of the pressing plate (7), and the connecting sleeve (71) is sleeved outside the mounting bolt (13); The force applying member comprises a force applying spring (8), which is sleeved outside the mounting bolt (13) and abuts between the connecting sleeve (71) and the nut of the mounting bolt (13).

6. The automatic silicon steel sheet inserting equipment based on a rocker arm structure according to claim 1 is characterized in that: The hopper (2) comprises two side plates (21) arranged opposite to each other, the side plates (21) being fixed on the support plate (11), and three pairs of partition bars (22) being fixed between the two side plates (21); Two material cavities (23) are formed between the side walls of the two side plates (21) and the outer side walls of the three pairs of dividing strips (22).

7. The automatic silicon steel sheet inserting equipment based on a rocker arm structure according to claim 1 is characterized in that: A plurality of chip suction holes (2311) are provided on the inner bottom wall of the accommodating groove (231), and the chip suction holes (2311) are arranged close to the steel sheet guide rail (12).

8. The automatic silicon steel sheet inserting equipment based on a rocker arm structure according to claim 1 is characterized in that: The lower end of the accommodating groove (231) is also connected to a dust exhaust pipe (24), and one end of the dust exhaust pipe (24) can be opened and closed.

9. The automatic silicon steel sheet inserting equipment based on a rocker arm structure according to claim 1 is characterized in that: A skeleton positioning groove (121) is provided on the steel sheet guide rail (12), and the skeleton positioning groove (121) is located between the two hoppers (2). A supporting convex plate (14) is fixed in the skeleton positioning groove (121), and one end of the supporting convex plate (14) gradually shrinks in a direction away from the steel sheet guide rail (12).

10. A method for inserting a sheet, characterized in that: The automatic silicon steel sheet inserting equipment based on the rocker arm structure as described in any one of claims 1 to 9 is used for inserting the sheet, comprising the following steps: S1, placing the E-shaped silicon steel sheet and the I-shaped silicon steel sheet in the two material chambers (23) of the hopper (2), then placing the frame on the steel sheet guide rail (12), starting the negative pressure source (6), and causing the dust suction holes (41) on the grinding plate (4) to generate suction; S2, starting the lifting source (51), driving the unloading push plate (52) to descend, squeezing the silicon steel sheet in the material cavity (23), and realizing unloading of the silicon steel sheet; S3, starting the driving source (33), driving the rocker arm structure (32) to move, thereby driving the sheet pusher (31) to slide between the two steel sheet guide rails (12), and the first push block (312) and the second push block (313) on the sheet pusher (31) push the silicon steel sheet at the bottom opening of the material chamber (23) onto the steel sheet guide rail (12), and then push it into the frame; S4, repeat steps S2 and S3 until the hollow hole of the skeleton is filled with silicon steel sheets and wedged tightly, finally completing the core insertion work.

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