RU2254951C1 - Coiled material centering apparatus - Google Patents

Abstract

FIELD: processes and equipment for coiling sheet material.

SUBSTANCE: apparatus for centering coiled material in front of coiler includes foundation with stop and guiding member mounted on foundation. Guiding member has leaf spring mounted by cantilever fashion on said stop with possibility of free rocking by action of material. Apparatus also includes lateral stops having mechanisms for their adjustment. Said lateral stops are in the form of plates with clamps mounted on free end of guiding member with possibility of tuning for preset width of material. It provides matching of axial line of feed of material with axial line of guiding member and prevents cross displacement of material on surface of guiding member.

EFFECT: enhanced accuracy of centering, improved quality of material, simplified design and enlarged using of apparatus.

3 dwg

Description

The invention relates to the production of winding sheet material and can be used in metallurgical, pulp and paper and other industries where rewinding of web material and slitting are used.

A device for centering a roll of material is known (RF patent No. 2093172, IPC B 21 C 47/00, publ. 10.11.97, bull. No. 31), which consists of a rotating guide element with a cylindrical surface. The emphasis, on which the axis of rotation of the cylindrical guide element is mounted, lies on the rollers with the bottom surface, the axes of which are fixed in the base. The lower working surface of the abutment in contact with the rollers is made in a circle with the center at the point where the axial line of material supply intersects and the middle of the generatrix of the cylindrical surface and the guide element.

A disadvantage of the known device is the large inertia of the guide element located on the stop, which inevitably leads to injury to the edges of the material by the side stops at high speed of the unwinder and jerking, which reduces the accuracy of centering.

Closest to the proposed is a device for centering the rolled material in front of the winder, containing a base with a stop and a guide element mounted on it and side stops with a mechanism for their adjustment, a deflecting roller is installed in front of the guide element, the axis of rotation of which is fixed in the fork installed in the bearings of the base, the guide element is made in the form of a flat spring cantilever mounted on the base stop with the possibility of free swinging under the influence of the material between p adjustable side stops and a deflecting roller located above the longitudinal axis of swing (RF Patent No. 2210450, IPC В 21 С 47/00, published on 08/20/2003, bull. No. 23).

The disadvantage of this device is the possibility of injury to the edges of the material on the guides. In addition, the lack of contact of the material with the spring at the edges leads to the formation of strips at the point of contact of the spring edge with the material, i.e. to surface defects. On thin materials, the use of the device is limited due to the possibility of formation of defects.

The technical problem solved by the invention is to increase the accuracy of centering, simplify the design of the device, expand its application and improve the quality of the material obtained.

The technical problem is solved in that in the device for centering the rolled material in front of the winder, containing a base with a stop and a guide element mounted on it, made in the form of a flat spring cantilever mounted on the stop of the base with the possibility of free swinging under the influence of the material, side stops with a mechanism for adjusting them , lateral stops are made in the form of plates with clamps located on the free end of the guide element with the possibility of installation under a given width of material to ensure the coincidence of the axial line of the material supply with the axial line of the guide element and the retention of the material from lateral movements along the surface of the guide element.

The invention is illustrated by drawings, which depict:

figure 1 is a top view of the device; figure 2 is a side view of the device; figure 3 is a guide element.

The device comprises a guide element 1, made in the form of a flat spring cantilever mounted on the abutment 2 of the base 3 with lateral stops 4 in the form of vertically mounted plates with clamps set across the width of the material 5.

The device operates as follows.

When refueling, the roll material 5 is laid on the guide element 1 and lateral stops 4 are installed along the width of the material 5 at the free end of the guide element 1. Next, the material is fed under tension to a cutting or other technological operation (not shown). When the winder (not shown) is rotated, the material 5 bends around the guide element 1 under tension and with the edge of the material 5 farthest from the axis of the aggregate, exerts a force on the lateral stop 4 mounted on the free end of the guide element 1, and with the edge of the material 5 least distant from the axis of the unit, exerts a force on the top of the guide element 1. There is a twisting of the guide element 1 together with the material 5 by an angle proportional to the deviation of the axial line of the material from the axis of the unit. Since the guide element 1 and the material 5 have the same configuration in the area of their contact, and the side stops 4 hold the material 5 from lateral movements on the surface of the guide element 1, the center line of the material 5 is aligned with the center line of the guide element 1 over the entire contact area and alignment tension across the entire width of the material 5.

A necessary condition for accurate centering is the condition under which the pressure force of the material edge on the side stops should be less than the force required to deform these edges. This condition is ensured by selecting the thickness of the guide element depending on the thickness and condition of the processed material.

The proposed device allows to achieve centering accuracy within the tolerance of the width of the processed material (± 0.2-0.5 mm) and can be successfully applied on the following equipment:

1. Slitting lines:

- sickle sickness is completely excluded;

- reduced marriage along the wavy edge;

- reduced geometric loss to the edge;

- rupture is excluded when cutting the foil;

- marriage is decreasing due to its wide range.

2. Combined cutting lines:

- excludes a wavy edge;

- cut kosin is excluded, the output of only rectangular sheets and stripes.

3. Long pickling and annealing units:

- reduced telescoping;

- interturn friction is excluded.

4. Pipe welding, roll forming mills:

- absolute accuracy of the tape task in the molding.

5. Electroplating lines:

- stable position of the tape in the metal coating bath.

The advantages of the proposed device for centering the roll material in comparison with the known:

- simplicity

- higher centering accuracy,

- reliability

- performance.

The manufacture of the device does not require large expenditures, while improving the quality of the coiled roll by eliminating its telescopicity.

Claims (1)

A device for centering the roll material in front of the winder, containing a base with a stop and a guide element mounted on it, made in the form of a flat spring cantilever mounted on the stop of the base with a possibility of free swinging under the influence of the material, side stops with a mechanism for their adjustment, characterized in that the side stops made in the form of plates with clamps located on the free end of the guide element with the possibility of installation on a given width of material to ensure coincidence howl material supply line with the axial line of the guide member and the retaining material of the transverse displacements of the surface of the guide member.

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