JP2021093908A5

JP2021093908A5 -

Info

Publication number: JP2021093908A5
Application number: JP2021027390A
Authority: JP
Filing date: 2021-02-24
Publication date: 2021-10-28
Anticipated expiration: 2037-01-09

Claims

It is an apparatus for manufacturing a laminated iron core formed by laminating and adhering an iron core thin plate formed by punching a strip-shaped thin steel plate into a predetermined shape.
Upper holder and lower holder,
An adhesive coating device that is provided on at least one of the upper holder and the lower holder and is intermittently transferred to apply an adhesive to the adhesive coating surface of the portion of the strip-shaped thin steel plate corresponding to the iron core thin plate.
Left and right guide members provided on the lower holder to guide the transfer of the strip-shaped thin steel plate along the intermittent transfer direction of the strip-shaped thin steel plate and restrict the upward movement of the strip-shaped thin steel plate.
A pilot pin provided in the upper holder and fitted into a pilot hole formed in the strip-shaped thin steel plate in order to position the strip-shaped thin steel plate at an adhesive application position by the adhesive coating device.
The die plate provided on the lower holder and
The strip-shaped thin steel plate is provided on the upper holder so as to be displaceable in the vertical direction and has a lower surface facing the upper surface of the die plate, and the strip-shaped thin steel plate at the adhesive application position by the adhesive application device is pressed against the upper surface of the die plate. A device for manufacturing a laminated iron core having a stripper plate.

Further having a stripper spring for urging the stripper plate toward the lower holder.
The apparatus for manufacturing a laminated iron core according to claim 1, wherein the stripper plate is configured to press the strip-shaped thin steel plate against the upper surface of the die plate by the spring force of the stripper spring.

The pilot pin includes a straight shaft portion, and the straight shaft portion projects downward from the lower surface of the stripper plate in a state where the stripper plate is in the most lowered position with respect to the upper holder due to the bias of the stripper spring. The apparatus for manufacturing a laminated iron core according to claim 2 at the position.

Claims 1 to 3 further provided on the lower holder so as to be displaceable in the vertical direction, and further having a plurality of lifters for contacting the lower surface of the strip-shaped thin steel plate and separating the strip-shaped thin steel plate from the upper surface of the die plate. The apparatus for manufacturing a laminated steel core according to any one of the above items.

In order to separate the strip-shaped thin steel plate from the upper surface of the die plate in a state where the stripper plate is in contact with the upper surface of the strip-shaped thin steel plate and each lifter is in contact with the lower surface of the strip-shaped thin steel plate when the stripper plate is raised. The apparatus for manufacturing a laminated steel core according to claim 4, further comprising a plurality of lifter springs for urging each lifter upward.

The apparatus for manufacturing a laminated iron core according to claim 4 or 5, wherein each lifter also serves as a guide member.

The guide member faces the upper surface of the die plate at a first predetermined interval from above, and restricts the upward movement of the strip-shaped thin steel plate, and the upper surface of the die plate is first from above. The apparatus for manufacturing a laminated iron core according to claim 5, further comprising a downward stopper surface that faces each other at a second predetermined interval smaller than a predetermined interval and that the upper surface of each lifter abuts.

The adhesive coating device is a transfer type including a plurality of discharge holes for discharging the adhesive toward the adhesive coating surface in order to transfer the adhesive to each of a plurality of predetermined positions on the adhesive coating surface. The apparatus for manufacturing a laminated iron core according to any one of claims 1 to 7.

The adhesive application device is
An adhesive supply device that supplies the adhesive to each of the discharge holes with a predetermined pressure,
An advancing / retreating driving device in which each of the discharge holes retracts the adhesive from the transfer position where the adhesive can be transferred to the adhesive-coated surface and moves the adhesive between a non-transfer position where the adhesive cannot be transferred. The apparatus for manufacturing a laminated iron core according to claim 8.

A method for manufacturing a laminated iron core, which is formed by laminating and adhering an iron core thin plate formed by punching a strip-shaped thin steel plate into a predetermined shape using a press device having an upper holder and a lower holder.
The left and right guide members provided on the lower holder restrict the upward movement of the strip-shaped thin steel plate, and when the upper holder is raised, the lower holder is vertically provided and lifted upward by the lifter spring. The strip-shaped thin steel plate is lifted up away from the upper surface of the die plate provided on the lower holder by the lifter urged toward, and guides the transfer along the intermittent transfer direction of the strip-shaped thin steel plate. In this state, the transfer process of intermittently transferring the strip-shaped thin steel sheet and
A coating step of applying an adhesive to the adhesive-coated surface of the strip-shaped thin steel plate by an adhesive coating device provided on at least one of the upper holder and the lower holder.
A pilot insertion step of inserting a pilot pin provided in the upper holder into a pilot hole formed in the strip-shaped thin steel plate during the descent of the upper holder after the completion of the transfer step.
The upper holder is provided so as to be displaceable in the vertical direction and has a lower surface facing the upper surface of the die plate . During the descent of the upper holder after completion, the strip-shaped thin steel plate is pressed against the upper surface of the die plate provided on the lower holder with the descent movement of the lifter.
In the coating step, the pilot pin is inserted into the pilot hole, and the strip-shaped thin steel plate is pressed or pressed against the upper surface of the die plate by the stripper plate with the descent movement of the lifter. When the agent is applied and the upper holder is raised after the application of the adhesive is completed, the lifter comes into contact with the lower surface of the strip-shaped thin steel plate with the ascending movement of the lifter, and the stripper plate is attached to the strip-shaped thin steel plate. A method for manufacturing a laminated iron core that returns the strip-shaped thin steel sheet to the lift-up state in a state of being in contact with the upper surface.

In the coating step, the adhesive is discharged from each of the plurality of discharge holes toward the adhesive coating surface, and the adhesive is transferred to each of the coating points set at a plurality of predetermined positions on the adhesive coating surface. The method for manufacturing a laminated iron core according to claim 10, which includes a step of performing.

The method for producing a laminated iron core according to claim 11, wherein the thin iron core plate includes a plurality of teeth portions and has at least one coating point on the teeth portions.