Pull rod press-downtype leveler

Abstract

The invention discloses a pull rod press-down type leveler. The leveler is provided with a fixed lower frame and a movable upper beam connected to the top of the fixed lower frame through a pluralityof pull rods to move, wherein each pull rod is connected with a worm wheel transmission device to obtain pull rod lifting power, and each worm wheel transmission device comprises a worm wheel arrangedat the end of the corresponding pull rod in a sleeving mode and a worm meshing with the corresponding worm wheel; the outer part of the upper end of each pull rod is sleeved with a hinge seat connected with the pull rod through key groove fit; plane bearings are arranged at the tops of the worm wheels at the lower end, and sliding limiting bearings are arranged at the bottoms of the worm wheels at the lower end; and automatic lifting devices are connected between the outer sides of the pull rods on the fixed lower frame and the movable upper beam. According to the leveler, automatic adjustment of thread gaps between the pull rods and the worm wheels is achieved, the gaps between the pull rods and the worm wheels are effectively eliminated, it is firstly guaranteed that the upper movable beam of the leveler has stable and uniform leveling force, and the flatness of a leveled product is guaranteed.

Description

technical field [0001] The invention relates to the technical field of roller leveler equipment, in particular to a pull bar depressing type leveler. Background technique [0002] In the existing roller leveler, the leveling roller and the roller system of the supporting mechanism (including the middle roller) are respectively installed on the movable upper beam and the fixed lower beam, and the two ends and four corners of the movable upper beam and the fixed lower beam are respectively provided with upright columns, The end beams are designed between the columns, and these four columns bear all the leveling pressure. In order to make up for the lack of rigidity of the column, large-scale roller levelers generally set a longitudinal connecting beam above the movable upper beam and between the beams at both ends, and then install studs in the column to connect the end beam and fix the lower beam to strengthen its rigidity. The movable upper beam and the pressing power mecha...

AI Technical Summary

Problems solved by technology

Existing elastic parts are usually springs or other elastic parts made of elastic materials that can be used for reciprocating recovery. These elastic parts are prone to insufficient recovery power and insufficient recovery during use, resulting in the thread between the pull rod and the worm wheel. The gap cannot be completely eliminated, and after a long working time, it will affect the leveling effect of the leveling machine

Therefore, after the leveler has been used for a period of time, it needs to be leveled at a fixed point in a short period of time to achieve the purpose of eliminating the gap between the tie rod and the worm wheel. If it is not adjusted in time, it will affect the leveling of coils and other materials. product quality

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