Adhesive type laminated-core member manufacturing apparatus and adhesive applying unit

Abstract

Disclosed are an adhesive type laminated-core member manufacturing apparatus and an adhesive applying unit therefor, the adhesive type laminated-core member manufacturing apparatus comprising: an adhesive applying unit that is selectively opened to apply an adhesive to a continuously transferred material, for example, a material used to manufacture a motor core; and a blanking unit that sequentially forms laminar members having a predetermined shape by making the material subjected to blanking, wherein the apparatus manufactures a laminated-core member for a motor core by bonding the laminar members through inter-laminar bonding. In the present invention, the adhesive applying unit includes: an adhesive spreader having an outlet channel for discharging an adhesive; and a valve that closes the outlet channel, and opens the outlet channel when the material and the outlet channel closely approach each other. According to the present invention, an adhesive is discharged by a pressure of fluid (adhesive) in a nozzle at a time point when a material and the adhesive applying unit closely approach each other, more specifically, only when the adhesive applying unit is pressed by the material so that the surface of the material makes contact with the adhesive applying unit, namely, the outlet of the nozzle, and the outlet of the nozzle is closed when the material and the adhesive applying unit move away from each other so that leakage of the adhesive can be prevented, thereby uniformly controlling adhesive discharge time and an amount of an adhesive to be applied.

Description

Technical field [0001] The present invention relates to a core component manufacturing device used in the manufacture of cores for motors, generators, etc., and in particular to a bonding type laminated core component manufacturing device and an adhesive coating for bonding laminated core component manufacturing as follows The cloth unit bonds laminated sheets (laminas) forming unit sheets to produce laminated core components for motors and the like. Background technique [0002] Generally, a laminated core manufactured by laminating and integrating laminated sheets is used as a rotor (Rotor) or a stator (stator) of a generator or motor, etc., as a method for manufacturing the laminated core, that is, as the As a method for manufacturing a laminated core in which laminated sheets are laminated and integrally fixed, a tab fixing method using a tab, a welding fixing method using welding (for example, laser welding), a rivet fixing method, and the like are known. [0003] As the sign...

AI Technical Summary

Problems solved by technology

[0007] However, although the existing adhesive fixing method, that is, the adhesive laminated core manufacturing method can save costs compared with laser welding and can cope with the thinning of the steel plate, it is difficult to separate components such as the press forming machine and the nozzle coating roll. Works independently, thus requiring precise control of adhesive application and punching

[0008] In addition, in the existing bonding-type laminated core manufacturing apparatus, there is a risk of leakage of the adhesive and contamination of the surroundings at the exit of the nozzle for applying the adhesive, and it may be caused by the leakage of the adhesive into the Adhesive narrows on the surface of the nozzle due to the outside of the nozzle, which causes problems such as clogging and contamination of the nozzle outlet, which may become more of a problem in terms of the quantitative and accurate application of the adhesive and the tendency to shorten the curing time

[0009] Moreover, for the existing adhesive-type laminated core manufacturing device, it is difficult to apply a predetermined amount of adhesive to the surface of the steel plate every predetermined cycle in conjunction with the punching process; and in order to accurately control the adhesive spray The amount of output and nozzle operation time (adhesive application sequence) requires careful management of the adhesive supply pressure, that is, the adhesive pressure inside the nozzle. If the adhesive application process is not carried out normally, the laminated core Separation between layers occurs, which in turn leads to defective products, so there may be problems such as a reduction in productivity due to an increase in the defective rate, and an increase in management costs.

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