Button sewing machine and control method

Abstract

The invention relates to a button sewing machine. A punch rod comprises a rack and a punch which are of a separate structure, and a protection mechanism for preventing misoperation is additionally arranged between the rack and the punch; and meanwhile, the operating method of a servo motor is properly improved, and the original route record is changed to route and current double judgment to ensure the quality of button sewing every time. The button sewing machine has the characteristics of accuracy, reliability and safety. The button sewing machine comprises a base, the servo motor, a reducing mechanism, a rack box, the punch rod and a servo motor control system, wherein the servo motor is installed on the base; the output end of the servo motor is connected with the input end of the reducing mechanism; and the output end of the reducing mechanism is connected with the rack box. The button sewing machine is characterized in that the punch rod comprises the upper rack and the lower punch which are separated; the punch is contained in a button sewing guide channel of the base; the rack is arranged above the punch and is matched with the rack box; and the protection mechanism for preventing misoperation is also arranged between the rack and the punch.

Description

technical field [0001] The invention relates to a button sewing machine, in particular to a button sewing machine driven by a servo motor to realize constant voltage control. Background technique [0002] For example, the notification number is CN204715013U, which discloses a button sewing machine with planetary gear reduction, including a body, a motor block provided on the body and slidingly provided with a punch in it, and a motor located on the body, which is located on the body. A planetary reducer is arranged between the motor block and the motor, the input end of the planetary reducer faces the motor side, and the output end faces the motor block side, by setting the planetary reducer between the motor block and the motor The device makes the power on the punch of the button sewing machine change to varying degrees; this button sewing machine uses a servo motor to control the lifting of the punch, and the planetary gear reducer plays the role of decelerating and incre...

AI Technical Summary

Problems solved by technology

[0002] For example, the notification number is CN204715013U, which discloses a button sewing machine with planetary gear reduction, including a body, a motor block provided on the body and slidingly provided with a punch in it, and a motor located on the body, which is located on the body. A planetary reducer is arranged between the motor block and the motor, the input end of the planetary reducer faces the motor side, and the output end faces the motor block side, by setting the planetary reducer between the motor block and the motor The device makes the power on the punch of the button sewing machine change to varying degrees; this button sewing machine uses a servo motor to control the lifting of the punch, and the planetary gear reducer plays the role of decelerating and increasing the torque. Due to the use of electric control Once the control switch of the motor fails or the worker misuses the servo motor to start, there is a great potential safety hazard; in addition, the existing button sewing machine is controlled by the stroke, and there is a certain error in the size of the workpiece due to the gap between the transmission mechanisms. The existing method of stroke control may have problems such as insufficient fastening or excessive fastening, causing damage to the buckle; affecting the quality of the product

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