Abstract: A manufacturing method of a laminated core includes forming a first blanking member by blanking a band-shaped metal plate along a predetermined first blanking shape and forming a second blanking member by blanking the metal plate along a predetermined second blanking shape. The first blanking shape has a first-yoke corresponding region corresponding to a first yoke portion and a plurality of first-teeth corresponding regions corresponding to a plurality of first teeth portions. The second blanking shape has a second-yoke corresponding region corresponding to a second yoke portion and a plurality of second-teeth corresponding regions corresponding to a plurality of second teeth portions. The plurality of second-teeth corresponding regions are located between the plurality of first-teeth corresponding regions in a width direction one by one. The second teeth-corresponding region is located closer to one first-teeth corresponding region than a virtual straight line.

Abstract: A method of manufacturing a laminated core is provided. The manufacturing method includes the steps of feeding a belt-like sheet of core material to a progressive die, stamping out core pieces having a first shape from the core material, stacking more than one of the core pieces having the first shape to obtain a first laminate block, stamping out core pieces having a second shape from the core material, stacking more than one of the core pieces having the second shape to obtain a second laminate block, discharging a laminate including the first laminate block and the second laminate block from the progressive die, changing the lamination order of the laminate blocks constituting the laminate, and integrating the laminate after the lamination order of the laminate blocks are changed.

Abstract: There is provided a method for measuring a laminated iron core. The method includes preparing a laminated iron core in which two or more kinds of metal plates with different shapes are laminated and a deformed part is formed inside a hole continuing in a lamination direction of the laminated iron core, acquiring a surface profile data indicating a surface shape of the deformed part through an inlet of the hole by a non-contact sensor located in an outside of the hole, and calculating a size of the deformed part by a calculator based on the surface profile data.

Abstract: At the time of manufacturing both a laminated rotor core 13 and a laminated stator core 14 by punching out a plurality of iron core pieces 11 and 12 from a same strip material 10 and laminating the punched out iron core pieces 11 and 12, respectively, a plurality of kinds of laminated rotor cores 13 and 13a are manufactured by further punching out a plurality of iron core pieces 11a from the strip material 10 and laminating the punched out iron core pieces 11a. Here, the plurality of kinds of the laminated rotor cores 13 and 13a can be used for different electric motors.

Abstract: This disclosure relates to a method for manufacturing a workpiece for a segmented laminated core. This method includes (A) feeding a plate for processing drawn from a roll thereof to a progressive die and (B) stamping out a workpiece in the progressive die, the workpiece including a plurality of pieces aligned in the circumferential direction with a circumferential part. At the step (B), an overall portion configured to be each piece of the workpiece is displaced in the thickness direction of the plate for processing, with portions on both sides of the piece being fixed, to form at least one cutting line across a region configured to be the circumferential part.

Abstract: In a method of manufacturing a laminated core, a laminated core body 14 including magnet insertion holes 12 and 13 with magnet pieces 15 inserted therein is placed between a molding (upper) die 10 and a retaining (lower) die 11, and a molding resin 19 is filled from resin reservoir portions (pots) 16 to fix the pieces 15 in the holes 12 and 13. Between the die 10 and the body 14, a guide member 18 is placed, which includes resin passages 31 provided from the portions 16 to the holes 12 and 13 and gates 30 connecting to the holes 12 and 13 on downstream sides of the passages 31. The method can reduce lead time of a production line without replacing the molding dies for different laminated rotor cores and thus without preparing different types of molding dies.

Abstract: A method of manufacturing a laminated core includes supplying a stator material to a punching device and obtaining an electromagnetic steel plate corresponding to a rectangular processed body by punching the stator material. To obtain the electromagnetic steel plate ES, a slit is formed outside a processed body forming area in the stator material along a long side of the processed body forming area, and a center portion of the processed body forming area is punched out in a circular shape. Additionally, the processed body forming area is punched out after the slit is formed and the center portion is punched out. The laminated core is obtained by laminating and fastening a plurality of the electromagnetic steel plates.

Abstract: In a laminated iron core formed by laminating a plurality of iron core pieces, at least one of an inner circumferential portion or an outer circumferential portion of the iron core piece is provided with a connection recess part which is connected with a connection part of a caulking piece detachable in a radial direction from the connection recess part, an outer circumferential edge of the connection part has the same shape as an inner circumferential edge of the connection recess part, and a bottom portion of the connection recess part is not configured by a single straight line.

Abstract: In one embodiment, a method implemented in an agricultural machine harvesting alfalfa plants, the method comprising: receiving, in real time, input corresponding to a plurality of sensed parameters corresponding to alfalfa plant height and cut alfalfa volume; associating the cut alfalfa volume to an alfalfa stem diameter; and automatically determining a feed quality value for the alfalfa plants based on the sensed alfalfa plant height and the alfalfa stem diameter.

Abstract: A die apparatus includes an upper die and a lower die used for blanking a thin plate, a stripper which is formed on the upper die and is arranged between the upper die and the lower die, and a punch which blanks a part of the thin plate. The stripper or the lower die is provided with a protruding part which reduces flexure of the stripper occurring when a test punching is performed by actuating the punch without the thin plate.

Abstract: The manufacturing method of a motor core includes attaching an ID code to a stack of blanked members in which a magnet insertion hole to fill with a resin material is formed, the ID code containing information in accordance with a type of the stack, reading the information from the ID code which is attached to the stack, and setting a mold condition based on the information read from the ID code. The mold condition includes at least one type of condition including: the resin material to be injected to the magnet insertion hole, an injection amount of the resin material, and a discharge position of the resin material. A mold device is controlled to inject the resin material to the magnet insertion hole in accordance with the mold condition.

Abstract: A method for manufacturing a rotor core includes detecting a height of a projecting portion formed on a lower die by a height detecting unit, and placing onto the lower die a core body in which a magnet insertion hole is formed such that the projecting portion is positioned in the magnet insertion hole when the height detecting unit has determined that the height of the projecting portion is within a set range. Additionally, the method includes bringing a permanent magnet in the magnet insertion hole into contact with an upper end of the projecting portion, and placing onto the core body a holding member after bringing the permanent magnet into contact with the upper end of the projecting portion. Melted resin is injected into the magnet insertion hole in which the permanent magnet has been inserted after placing the holding member onto the core body.

Abstract: A method where the weight of the bale is measured by a scale on the baler, the moisture of the bale is measured by sensors on the baler and this information is sent to a processor. Based on compaction properties of the leaf verses the stem of the alfalfa, the processor calculates a feeding value for the hay including protein, energy and relative feed value on the dry density of the bale. Additional inputs such as the compaction setting of the baler and information about the hay being harvested can also be input into the processor for making adjustment to the feeding value calculation.

Abstract: At least one caulking group (13) that includes a plurality of caulking parts (14, 15) with different directions is formed on a plurality of thin plates (10) placed in a stacked state to fix the position of the stacked thin plates (10), and then a preset punching process is performed with respect to the thin plates (10) that have been positioned with pilot holes (12). This makes it possible to perform a high-accuracy punching process when punching the plurality of thin plates (10) placed in a stacked state, since positional deviations between the thin plates (10) are avoided and pilot pins (11) are prevented from deforming the periphery of the pilot holes (12).

Abstract: A method of manufacturing a laminated core includes inserting permanent magnets 14 into magnet insertion holes 12, 12a of a core body 13; injecting a resin 18 into the holes 12, 12a from resin reservoir pots 17 in the die 15 (16) to fix the magnets 14; placing a dummy plate 19 between the die 15 having the pots 17 and the body 13, the plate 19 having gate holes 35, 35a guiding the resin 18 from the pots 17 into the holes 12, 12a, the hole 35 (35a) overlapping with both of a part of the hole 12 (12a) and a surface of the body 13; poring the resin 18 via the holes 35, 35a and curing the resin 18 in the holes 12, 12a; and separating the plate 19 from the body 13 to remove the resin 18 overflowed from the holes 12, 12a.

Abstract: A laminated core 10 including a plurality of laminated iron core pieces, each of the iron core pieces being connected in a laminating direction by filling resin in a plurality of resin holes penetrating the laminated core 10 in the laminating direction, and a method for manufacturing the laminated core 10, by making a junction area of an iron core piece (A) 13 and resin larger than a junction area of an iron core piece (U) 14 and resin, the iron core piece (A) 13 being provided on an end in an axial direction, the iron core pieces (U) 14 being arranged at positions other than the end in the axial direction, or by providing locking portions at tip portions of resin, acquired joint strength of the iron core piece (A) 13.

Abstract: A laminated iron core includes laminated iron core pieces, in which coupling parts are formed so as to communicate in a lamination direction of the laminated iron core pieces, and the coupling parts are filled with resins. The laminated iron core satisfies the following formula: (T×S)/?>{(4×E×?×w×t3)/L3}×n, where T is a strength (N/mm2) of the resin; S is a cross-sectional area (mm2) of the coupling part or the resin; E is a Young's modulus (N/mm2) of the strip material; ? is a distortion amount (mm) of the iron core piece; w is a width (mm) of the iron core piece in a radial direction; t is a plate thickness (mm) of the iron core piece; n is the number of laminated iron core pieces; L is a distance (mm) between the coupling parts adjacent in the circumferential direction; and ? is a safety factor.

Abstract: A separation apparatus for a laminated core is configured to separate an annular laminated core, which includes a plurality of core pieces each of which includes a yoke portion and a tooth portion extending from the yoke portion in a direction intersecting the yoke portion and is integrated by the temporary connection of the adjacent core pieces at end portions of the yoke portions, into the respective core pieces. The separation apparatus includes a plurality of separation members that are movable in a radial direction of the laminated core and are disposed so as to be arranged in a circumferential direction of the laminated core, and an actuator that is configured to apply an outward force in the radial direction to the laminated core through the respective separation members by moving the respective separation members outward in the radial direction.

Abstract: A laminated iron core is made of a stator iron core formed by laminating a plurality of iron core pieces with a predetermined shape, and a caulking block detachable along a radial direction is formed in each of the iron core pieces. In a method for manufacturing the laminated iron core, the caulking block detachable along the radial direction is provided in each of the iron core pieces, and the iron core pieces are laminated and joined through the caulking blocks and are arranged on a jig and then, the caulking blocks are pulled in the radial direction and are detached from the laminated iron core pieces, and the laminated iron core pieces are joined by a resin.

Abstract: A method of manufacturing a metal product includes forming a first identification code onto a surface of a metal member with a laser beam, the first identification code being readable under a first reading condition, and heating the metal member on which the identification code is formed. The method further includes reading the first identification code with a reading device, and forming a second identification code onto the surface of the metal member subsequent to the heating with a laser beam based on the first identification code which is read with the reading device. The second identification code is readable under a second reading condition different from the first reading condition.