Lock catch type rigid and plastic compound bulging forming device for large-caliber T-branch pipe
A large-diameter, rigid technology, applied in the field of large-diameter three-way pipe lock-type rigid plastic composite bulge forming device, can solve the problems of low service life of the punch, too small size of the tube blank that cannot be used, and complex mold structure. Achieve the effect of meeting the requirements of bulge forming
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[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0037] Such as Figure 4 As shown, it is a structural schematic diagram of an embodiment of a large-diameter three-way pipe lock-type rigid-plastic composite bulging forming device embodiment of the present invention. The large-diameter three-way pipe lock type rigid plastic composite bulging forming device of this embodiment includes an upper half-mold 1 and a lower half-mold 2, and a circular tubular forming mold is arranged between the upper half-mold 1 and the lower half-mold 2. Cavity 3, the two ends of the forming cavity 3 are respectively equipped with bulging extrusion punches 4 that slide and fit with it, and the lower half mold 1 is provided with a branch forming cavity ...
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