Magnetic table of rotary screen printing machine

Abstract

The invention discloses a magnetic table of a rotary screen printing machine. The magnetic table comprises a tank, a roller, a magnetic table top and a magnetic table base. A plurality of iron core holes are formed in the magnetic table top. An iron core is inserted in each iron core hole in the tank. Each iron core is sleeved with a frame, a coil is wound on each frame, a permanent magnet is arranged on the bottom face of the tank, the two ends of the tank are connected to a support through positioning screws, and the support is fixed to the bottom face. The tank is sleeved with the roller through bearings, the wall of the roller is located between the permanent magnet and a magnetic bar, and the outer wall of the roller makes contact with a printing guide belt. The permanent magnet is fixed to the bottom face of the magnet base with the position capable of being adjusted in the circumferential direction. The magnet base is sleeved with the roller through the bearings, so that on the premise that the permanent magnet and the magnetic bar attract each other, rolling friction is achieved through the roller and the printing guide belt, the friction coefficient between the roller and the printing guide belt is reduced, abrasion is reduced, production efficiency is improved, and energy consumption is reduced.

Description

Technical field: [0001] The invention relates to the technical field of textile machinery, in particular to a magnetic table of a rotary screen printing machine. Background technique: [0002] At present, the magnetic table of the printing machine mainly includes a tank body, a coil, an iron core, and a cylindrical skeleton. The tank is not only the work surface, but also the support of the iron core. The coil is wound on the frame. When the direct current is applied, the coil will generate a magnetic field, and the magnetic circuit will be generated through the iron core. Within a certain length (W=2000-3000, even more than 3000) , Combine multiple coils together to form a magnetic circuit. When working, put the workpiece (magnetic conductor) on the tank, and the magnetic conductor generates a downward magnetic force in the magnetic field. The magnetic force is related to the current, the cross-sectional area of ​​the iron core, and the length of the magnetic circuit: the ...

AI Technical Summary

Problems solved by technology

At present, the main problem of the magnetic table of the printing machine is that the magnetic force is not enough and uneven, which affects the printing quality. If the magnetic force is to be increased, the current must be increased, but it will generate heat, causing the tank to be deformed by heat, and the coil will be overloaded. , burn out the coil, and because of the poor working environment of the printing machine, there are often garbage on the printing guide belt, and this kind of garbage often accumulates in front of the magnetic table and cannot pass through the magnetic table. After a long time, the printing guide belt will be worn

And because there is sliding friction between the printing guide belt and the magnetic table, the friction resistance is large, and the load on the guide belt drive motor will be increased, and even the motor will be burned.

Many domestic manufacturers have thought of many ways to solve this problem, such as adding cooling devices, but they cannot solve the problem fundamentally.

Images