There are many different reasons for incorrect slitting line positioning. We need to find the source of the problem in order to better solve the problem. In today's article, Wuxi Bangzhou Machinery will take you to understand the various reasons for the incorrect positioning of the slitting line and the corresponding solutions. If you are interested, just read it with me!

1. Damage of longitudinal shear separator working face

The tolerance of the parallelism of the two ends of the longitudinal shear sleeve is positive or negative 0.002 mm, and the smallest errors can be found by naked eyes are more than 0.1 mm. If there is a common damage to the spacer, the accuracy can not be guaranteed basically once there is a collision, which directly affects the accuracy and quality of the product after shearing.

Typical morphology of spacer damage

The main cause of the damage is operation and maintenance. For example, the worker has not developed the habit of light handling, or may fall or bump when lifting or handling.

In addition, the material quality and surface hardness of the separator are also important. Some small processing factories do not meet the shear accuracy standards because they save the cost in places that should not be saved. This makes it easy to cause such problems even if the collision is lighter, which needs to be paid more attention to when choosing and purchasing the material of the spacer.

2. Locking problem of blade and spacer on tool axle

In order to ensure product size, the slitting line mill usually combines the axle and blade together to form a complete whole. Once all the blades and spacers on the whole axle are not locked. The external force acting on the strip steel reaction force changes, and the blade rotates with the axle, which directly results in the shearing burr. The solution is very simple, that is, to ensure locking. But whether the locking can be ensured is closely related to the equipment configuration. There are two common locking modes: hydraulic and mechanical.

Although the mechanical locking is easy to operate, the locking effect is general and only the employees with great strength should be selected to operate. The locking effect of hydraulic nuts is good, but we need to have a certain understanding of the equipment, but the effect of blind purchasing is not as good as mechanical locking.

3. Unparallel tool holder

The slitting line process is formed by the interaction of upper and lower tool holders. If the upper and lower tool holders are not parallel, one of them is in an inclined state, it will also lead to sickle bending and burrs.

It is relatively easy to solve the problem of non-parallel tool shafts. Equipment experts can quickly solve the problem by adjusting worm gears and using professional testing equipment.

Slitting line production is a typical way of coil processing. With the upgrading of industry and the increasing demands of customers on product quality, higher quality expectations are put forward for the vertical shear production line. Of course, in addition to improving the operation and management level of the vertical shear production line, there are also high requirements for the configuration, maintenance and spot inspection of the vertical shear equipment.

Slitting line defects are not only burrs and camber, but also other common problems in production, such as winding staggered layers, uneven winding, side waves after longitudinal shear, etc.

Wuxi Bangzhou Machinery can offer you the high quality slitting lines and cut to length lines. We have many new machines exported to Southeast Asia, Europe, Latin America and Africa, and are favored by customers. For more details about our machines, don't hesitate to contact with us.