Glue spraying nozzle for manufacturing new energy automobile motor iron core and glue spraying method thereof

Abstract

The invention discloses a glue spraying nozzle for manufacturing a new energy automobile motor iron core. The glue spraying nozzle comprises a spraying valve cylinder and a valve element, the spraying valve cylinder comprises a glue spraying channel, the valve element is arranged in the glue spraying channel, a first gap exists between the valve element and the glue spraying channel, the glue spraying channel comprises a conical cavity and a glue inlet channel, the valve element comprises a conical valve element, the conical valve element is arranged in the conical cavity, the conical surface of the conical valve element is tightly attached to the inner wall of the conical cavity, the upper end of the conical valve element extends out of an upper port of the conical cavity, and the extending height of the upper end of the conical valve element is h1; and the conical valve element 21 moves downwards under the action of stamping of the strip material every time, so that a glue spraying cavity is formed between the conical surface of a conical head and the inner wall of the conical cavity in the spraying valve cylinder, the diameter of an upper end opening of the conical cavity is B1, the diameter of the upper end of the conical head is B2, and the sectional area of a glue spraying port of the glue spraying cavity is equal to B1-B2. A plurality of glue spraying ports can be used for synergistically and consistently controlling glue spraying, and meanwhile, the corresponding glue spraying amount and the stamping speed can be synchronously controlled according to the size of the corresponding iron core sheet.

Description

technical field [0001] The invention relates to the technical field of glue spraying used in the manufacture of viscose iron cores, in particular to a glue spray nozzle for manufacturing new energy automobile motor iron cores and a glue spraying method thereof. Background technique [0002] Most of the conventional motor cores are made by self-clamping and riveting. The motor cores produced by self-clamping and riveting are also more serious in terms of noise and vibration, and some motor core products need to be wound, so viscose iron must be used. Core, or the motor needs a core obtained by viscose for better performance. However, the viscose core is manufactured by punching through a continuous die and then bonded and formed. Therefore, the nozzle structure of the glue spray during the production process Design is particularly important, especially in the punching of new energy vehicle motor cores, based on the fact that there are many groove shapes on the stator core in ...

AI Technical Summary

Problems solved by technology

[0002] Most of the conventional motor cores are made by self-clamping and riveting. The motor cores produced by self-clamping and riveting are also more serious in terms of noise and vibration, and some motor core products need to be wound, so viscose iron must be used. Core, or the motor needs a core obtained by viscose for better performance. However, the viscose core is manufactured by punching through a continuous die and then bonded and formed. Therefore, the nozzle structure of the glue spray during the production process Design is particularly important, especially in the punching of new energy vehicle motor cores, based on the fact that there are many groove shapes on the stator core in new energy vehicle motors, but in order to ensure the bonding strength, it is necessary to ensure that each groove The parts between the shapes need to be sprayed with glue. Due to the large volume of the new energy vehicle motor, the corresponding iron core is also relatively large, resulting in the need to set up to more than 200 on the continuous blanking die of the new energy vehicle motor core. The structure of the glue spray valve in the prior art can no longer be installed on the continuous blanking die of the motor iron core of the new energy vehicle, and it is also difficult to achieve more than 200 glue spray ports to control the glue spray in a coordinated manner

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