Expanding sleeve with automatic mechanical jaw device

Abstract

The invention relates to an expanding sleeve with an automatic mechanical jaw device. The sleeve comprises sector blocks, a cam, a connecting rod and a spring. The sector block T1 is provided with a jaw and a side surface hole K1, a side surface hole K2 is formed in the sector block T2, the cam is connected with the sector block T1 in a hinged mode, when the cam swings, the jaw can be pressed closely, the opening degree between the jaw and the cam can be adjusted, the two ends of the connecting rod stretches into the side surface hole K1 and the side surface hole K2 respectively, the connecting rod is matched with the cam through a pin hole and a pin roll, the spring is connected with the connecting rod in a sleeving mode and located in the side surface hole K2, the spring keeps applying reactive force to the connecting rod and the sector block T2, and a shaft shoulder is arranged, near the exterior of the side surface hole K2, on the connecting rod and used for clamping the side surface hole K2 when shrinking. According to the device, action time of clamping or releasing is omitted, the labor productivity is improved, the length of a crooked strip head is reduced, the yield is improved, rolling-up of a subsequent working procedure is convenient, an external power source is not needed, energy is saved, the structure is simple, and the cost is low.

Description

technical field [0001] The invention relates to a cold rolling treatment line equipment, in particular to an expansion and contraction sleeve with a mechanical automatic jaw device. Background technique [0002] On the cold rolling processing line, the coiler often needs to coil steel coils with different inner diameters. When processing strip steel with a large thickness range, it is generally realized by using multiple coils with different diameters. Set the jaw device on the reel, [0003] Since the reel needs to be replaced every time the inner diameter is changed, it not only takes a long time, reduces labor productivity, but also increases equipment costs and increases the area of ​​the spare parts warehouse. One reel can be used to produce steel coils with different inner diameters, but since the expansion-shrink sleeve or the diameter-increasing block does not have a jaw device, the strip can only be clamped by the jaw device that comes with the reel. , so the head...

AI Technical Summary

Problems solved by technology

[0003] Since the reel needs to be replaced every time the inner diameter is changed, it not only takes a long time, reduces labor productivity, but also increases equipment costs and increases the area of ​​the spare parts warehouse. One reel can be used to produce steel coils with different inner diameters, but since the expansion-shrink sleeve or the diameter-increasing block does not have a jaw device, the strip can only be clamped by the jaw device that comes with the reel. , so the head of the bent strip is too long, which is not convenient for the next process of coiling, and also reduces the yield. Therefore, at present, most of them still use reels with different diameters to meet the requirements of producing steel coils with different inner diameters and strips with thick and thin specifications. need

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