Paper machine net, the transformation of the wave vibration system

Paper machine net, the transformation of the wave vibration system, 2019 - 06 - 12 shake vibration transfer system is the network of forming plate, roller wiper plate, case, vacuum suction box to shake at the same time, the following defects: ( 1) Sheet fiber evenness, vertical and horizontal breaking length data difference obvious physical index; （ 2) Covers an area of large, high cost, easy to wear and tear, the wire length, wave vibration when the power consumed by a large; （ 3) Support spring plate is easy to fold, affect production, safety coefficient is low; （ 4) In the production of highly quantitative product, its evenness bad phenomenon is more serious. In this paper, a device to improve the technology of sheet evenness of paper machine net breast roll roll homogenate of vibration device. 1 technical reformation of paper machine net breast roll roll homogenate of vibration device is the the case from forming board disconnected before, only to shake vibration breast roll. The homogenate of vibration device is not only suitable for low speed long net multi-cylinder paper machine, and is applicable to medium speed long net multi-cylinder paper machine. 1. 1 technical indicators vibration time: 25 Thirty times; Amplitude: 50 - 100mm。 1. 1 2 process technology. 2. 1 process structures shown in figure 1, the ministry of paper machine net breast roll roll homogenate of vibration device including installed on both ends of breast roll bearing and bearing seat and used to support the chest roller arm, back to pull and beam, beam frame on the columns, bearings and bearings are installed in the post bar, bearing rod at the other end is installed on the arm, thus to support the arm. The arm is installed on the bearing and the bearing seat, seat and beam respectively after through the spring plate installed on the bearing and the bearing seat, this setting is mainly due to the spring plate can provide vibration of restoring force, thereby reducing the power, and act as a cushion. Set in the side of the chest roll wave oscillator, the wave plate connected to the bearing and the bearing seat through spring. Wave oscillator is driven by electromagnetic speed regulating motor. 1. 2. 2 working principle applied electromagnetic speed regulating motor can adjust the vibration frequency of the system, through the pulley again to slow down, to wave oscillator amplitude can be adjusted, through the flexible spring plate drive breast roll reciprocating swing, vibration frequency and chest roller changing shake. 1. 3 comparative analysis ( 1) Disconnect the wire from forming plate ago, only to shake of breast roll, not only can reduce the wave, the dynamic load and reduce the movement of the plate spring load. （ 2) Breast roll wave can be used in a large amplitude and frequency of vibration, increase the lateral vibrations of fiber, can make the long fiber pulp along the run in the same direction, under the condition of small transverse distribution of the fiber, fiber cloud effectively, make the wire sizing uniform distribution, vertical and horizontal to the binding force to strengthen, Zhang Shi printing paper, effectively improve the performance. （ 3) By breast roll violently shaking, make pulp flow slurry box out initial, fiber is easy to spread out under liquid, sharply at high frequency vibration condition, is easy to be mixed together. （ 4) Spring plate supported by type to commit suicide by hanging type, achieved the requirements of the fast changing network, to be on the safe side, the spring hanging parts add wire rope. 2 reconstruction efforts and innovation point ( 1) Let chest roller and the wire broken, only the breast roll wave vibration can achieve the purpose of improving sheet evenness; （ 2) Before did not form in the paper can make fiber crisscross, make the fiber binding force is stronger; （ 3) Spring plate supported by type to commit suicide by hanging type, to achieve the fast changing network. , of course, from the technical reformation, although has the obvious effect on the improvement of the paper evenness, but from the modified after the operation of the equipment, there exist some problems, such as to prevent fracture of the leaf spring, the spring hanging parts add steel wire rope, insurance and transformation technique is not very perfect, this will as constantly find problems to solve the problems in the process of production; In forming plate flow slurry box and at the same time, to seek better ways to improve the evenness of paper, improve product quality, reduce production costs.