Corrugated board production line work accuracy

Corrugated board production line work accuracy

Reduce the amount of bending die and the processing on the way to replace number using CNC pipe bender bending pipe is a kind of high precision and rate of fitting processing method, should not be in frequent

change mould, especially for a fitting more don’t want to because of bending radius change in processing and replacement of bending die on the way, should strive to reduce duplication of debugging and the resulting assembly error. So corrugated production line as far as possible to follow the “one tube one mold” and “multi-tube one mold” principle. “One tube, one mold” requires that a spatial multi-bending member should have only one bending radius, and the bending Angle and the number of bending sections can be arbitrary: “Multi-pipe and one mold” is for the pipe of the same diameter specification, hoping to design the same bending radius, which can use the same bending mold to bend pipe of different shapes, and only need to adjust the setting procedure of bending Angle, without changing the bending mold, in the tooling preparation can also significantly reduce the number of bending mold used. To make full use of the auxiliary functions of CNC pipe bender, the auxiliary functions of CNC pipe bender should be fully used to make these auxiliary functions play a targeted role and improve the quality of bending.

Bending, for example, some poor formability of thin-walled tube bending outward side wall thinning even cracking becomes the primary bending, then can be appropriately used CNC pipe bending the tail or pressure booster function, corrugated board production line Reasonable adjustment speed boost or booster distance to reduce outer convex side wall thinning amount, in order to avoid cracking: For thick wall tube bending inner concave side wrinkling may be produced when the blank piece of position should be properly adjusted and the surface shape, also can reduce speed boost or booster distance to achieve the booster bending and reduce or bending inner concave side wall thickening or too much wrinkle 22.5 introduction of special pipe bending process due to the traditional process is difficult to realize some special shape and the quality requirement of pipe bending forming, Different from the traditional technology, new bending methods have been developed, as well as some special bending methods to achieve pipe bending by special bending dies, which are collectively called special bending technology.

Among them, mainly including mold bending bending, pipe rotary traction boost bending, pipe pre-reverse deformation bending, pipe core shear bending and large diameter thin-wall pipe wrinkling bending forming 1. The elbow is an important part used for pipeline connection, and its two ends are not with straight pipe section but a whole curved shape. The bending deformation process of the elbow is basically the same as that of the ordinary elbow, but because the two ends are unconstrained, the material flow displacement is relatively large in the bending process, which is taken into account when the tube blank is blanked. In addition, after the bend is made into shape, the two ends often need to be properly processed, so sometimes the subsequent processing allowance should be set aside in advance. Under normal circumstances, when the original outer diameter of the corrugated board production line is D4, the wall thickness is 4 and the original layer bending radius is R0, it is necessary to estimate the tangential length 4 and L of the concave side and the convex side of the bending respectively, and then cut the two ends of the tube blank out of the isoslope groove. The bending shape of the elbow and the flow deformation process of the pipe wall material during bending have certain particularity. According to the shape and size of the elbow, a variety of methods can be used to bend the elbow. Generally, medium and small elbows are usually made by using molds for bending or core pushing bending, while large and extra-large elbows often need to be formed after multi-section bending of plates. Elbow bending can be done on a press machine with a special die, which is divided into cold pressing or hot pressing. The two bending methods are basically the same, and the difference lies in whether the tube blank is heated during bending.