A pressure head and a straightening device

Abstract

The invention relates to pressure heads and a straightening device. The straightening device comprises an upper die and a lower die; the lower die is provided with an elongated slot for placing materials; the upper die is provided with the multiple pressure heads sequentially arranged in the length direction of the elongated slot; each pressure head comprises a sleeve base and a pair of slide blocks; all the slide blocks are slidably installed on the sleeve bases; an opening is formed between every two slide blocks; each sleeve base is provided with a driving device for pushing the corresponding slide blocks to slide up and down in the axial direction of the sleeve base; and when the slide blocks slide downwards in the axial direction of the sleeve bases, the openings are narrowed down gradually. According to the pressure heads and the straightening device, the structure is simple, and straightening can be conducted on a rod piece, especially, a copper piece; and the straightening quality is high, and the outer surface of the rod piece cannot be damaged.

Description

technical field [0001] The invention relates to a pressure head and a straightening device. Background technique [0002] The existing methods for straightening copper pipes are as follows: [0003] 1. The usual practice in the industry is to straighten copper pipes by straightening rollers (wheels). The advantage of this method is that it is not easy to damage the outer wall of the pipe fittings, and the length of the equipment is not affected by the length of the pipe fittings that need to be straightened. [0004] 2. By means of stamping, that is, by pressing down the die by the upper die, the pipe fittings are forced to be straightened, such as the scheme introduced in the Chinese patent (application number is 2015108523191, and the patent name is "a steel pipe straightening machine"). This method is more suitable for solid pipe fittings, not suitable for hollow pipe fittings such as copper pipes. At the same time, this method is very easy to damage the outer wall of th...

AI Technical Summary

Problems solved by technology

As described in the applicant's previous application (patent number 2013100606445, patent name "A Pipe Fitting Blanking and Feeding Mechanism"), this structure can solve the problem of warping of the free end due to low alignment quality The pipe material (10) will also be constrained in the passage (24) in the passage (24) due to the limitation of the inner wall of the passage (24), thereby realizing the straightening of the pipe fittings. The defect of this straightening method is that it is not used convenience, inefficiency

[0006] The above-mentioned methods have their own advantages and disadvantages, and there is a need for improvement.

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