SU118023A1 - Tamping press for cotton, etc. of materials - Google Patents

Description

Known tamping press for cotton, etc. materials, including automatic signaling of the achievement of the required density by closing the contacts of the sensor, one of which is connected to the body of pressure on the material to be pressed; the stopping of the tamper is performed manually.

The present invention has the goal of further enhancing the automation of the operation of the press in terms of its shutdown when the preset Density in the bale is reached.

For this purpose, a sensor is mounted in the tamping pad with a valve made in the form of a disk buffer, the stem of which is spring-loaded with an adjustable spring and provided with a pusher disconnecting the motor contacts through a time relay designed to ensure that the tamping piston is lifted to the upper position.

The drawing shows a longitudinal section of the sensor.

In the tamping pad, a sensor with a valve is mounted, which is a steel hermetically sealed housing 1, inside of which is mounted a rod 2, fitted at one end with a pusher 3 and a spring 4; the other end of the stem extends out of the housing to the outside and ends with a disc buffer 5. The pressure of the spring 4 on the stem 2 is adjusted by the nut 6 and the lock nut 7.

Inside the casing / on the path of movement of the pusher 3, two spring contacts 8 are connected, connected by a flexible wire 9 through a time relay to the power supply circuit of the electric motor.

In the process of tamping the fiber, the piston with the tamping cushion reciprocates. But as the supply of new portions of fiber increases, the pressure on the fiber and its density increase; in this case, the disk buffer 5 receives an ever-increasing load. The stroke of the rod 2, the spring 4 of which is designed for the ultimate load corresponding to a given fiber density at the end of tamping, increases, and when the desired density is reached, the pusher 3 disconnects the upper spring contact 8 from the bottom one and the electrical circuit opens. Contact separation occurs at the moment when the tamper piston is in the lower position; this breaks the power circuit of the time relay set to the shutter speed necessary for raising the piston to the upper position. At the same time, the warning light goes off warning of the shutdown motor stopping, then the time relay is activated and the rammer stops.

Subject invention

Trambyvk4pressa, for cotton, etc. materials, including avtmittideso, 1 | p ,, signaling the achievement of the required density by closing the sensor contacts, one of which is connected to the body of pressure on the Nrayusma material, characterized in that, in order to increase automation when the press stops working when it reaches a predetermined tightness in the bale, a sensor with a valve made in the form of a disc buffer, the stem of which is spring-loaded with an adjustable spring and equipped with a pusher disconnecting the contacts, is mounted in the tamping feeder. ektrodvigatel via time switch adapted to provide a lifting ram piston in the upper position.