Four-bar type carrier roller device for stretching straightener

Abstract

The invention discloses a four-bar type carrier roller device for a stretching straightener. The stretching straightener comprises a rack installed on a horizontal plane, wherein the four-bar type carrier roller device comprises a plurality of carrier roller units installed on the rack at intervals, each carrier roller unit comprises a hinge four-bar mechanism and a rectangular supporting frame, and the hinge four-bar mechanism is installed on the rack in a hinged mode, and provided with a connecting rod part; and the first side part of each rectangular supporting frame is used for supportinga straightened product, the other opposite second side part of the rectangular supporting frame is fixedly connected to the connecting rod part of the corresponding hinge four-bar mechanism, and the rectangular supporting frame rotates along with rotation of the connecting rod part of the hinge four-bar mechanism under the guidance of the hinge four-bar mechanism so as to ascend or descend. According to the four-bar type carrier roller device for the stretching straightener, the motion track of carrier rollers can be changed into a curve with small horizontal spacing and large vertical spacingfrom an arc, so that compared with a swing arm type structure in the prior art, the distance between the carrier roller devices is shortened, the down-warping degree of a straightened product is reduced and the straightening quality of the product is improved under the same condition.

Description

technical field [0001] The invention relates to the technical field, in particular to a four-bar idler device for a stretch leveler. Background technique [0002] Generally speaking, the stretch straightening machine can apply tensile force in the length direction of the extruded product, so that the stress generated inside the extruded product exceeds the yield limit of the material of the extruded product, so that the extruded product is under the action of external force Straightening is achieved by plastic extension. The stretch straightening machine can hold the two ends of the product with clamps, stretch the product along the length direction, and straighten it. [0003] figure 1 A stretch leveler 1 of the prior art is shown. Such as figure 1 As shown, the stretch leveler 1 can include a frame 2, an idler device 3, a conveyor belt 4, a stretch chuck 5, a moving chuck 6, and clamps, etc., wherein the idler device 3 includes a plurality of idler rollers shaft 8 and...

AI Technical Summary

Problems solved by technology

It can be observed from the figure that the swing arm radius R of the idler arm 7 is relatively large, resulting in a relatively large distance between the idler devices 3 and the distance between the idler rollers, which leads to a relatively large tension leveler. bulky

[0006] therefore, figure 1 and 2 The structure of the prior art shown may have the following defects: the structure size is large, and the land occupation is large; the idler roller arm is large, resulting in a large moment, which requires a larger thrust, and the diameter of the swing arm is increased, and the overall weight is increased; the distance between the idler rollers is long , after the straightened product is placed on the roller, the degree of deflection is large, which directly affects the straightening effect

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