Особливості розрізування еластомерів на мірні заготовки

Abstract

Проведено моделювання взаємодії подаючих валків з конвеєрною стрічкою і методики розрахунку параметрів установки для розрізування конвеєрної стрічки на смуги. Наведено спосіб розрізування конвеєрної стрічки з повітряно-крапельним охолодженням і змащенням, що дає значний ефект.

Theoretical preconditions of feeding the conveyor belt in the machine-tool cutting section are presented. The calculation scheme of feeding the conveyor belt into the special machine-tool section was developed. The analytical dependences for finding the force of feeding the conveyor belt and the force of friction are presented. The equations for determining the normal force on the pinch roller are found. The unrolling force, conveyor belt mass, friction force, and structural parameters of feed mechanism greatly effect the normal force. The graphic dependences of the conveyor belt pressing force value on the belt mass and friction coefficients between the supporting rollers are presented. It is found that the normal force of pressing the conveyor belt by pinch rollers is far less while its being fed into the machine-tool as compared while its being fed along the flat surface. The construction design for cutting the conveyor belt into strips using the air-to-drop cooling is worked out and patented. While feeding the conveyor belt into the cutting section by supply rollers, the compressed air with water drops is supplied from the top of the compressor. The water drops cool the discs being cut and lubricate the complete process of cutting. As a result of the carried out research it is proved that with the use of air-to-drop cooling and lubricating the cutting force is decreased in 1,5...2,2 times, cutting speed in increased in 2...2,5 times, the stability of cutting knives is increased by 15...25%, requirements for the eco-friendly parameters of environment and the cleanly state of the machine-too are being metl.