Locking rigid-plastic compound bulging forming apparatus for large-caliber three-way pipes
A large-diameter and rigid technology, applied in the field of large-diameter tee-pipe lock-type rigid-plastic composite expansion forming equipment, can solve the problems of low service life of punches, too small size of tube blanks that cannot be used, and complex mold structure, etc. Achieve the effect of meeting the requirements of bulging forming
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[0037] 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.
[0038] like Figure 4 As shown, it is a structural schematic diagram of an embodiment of the large-caliber tee pipe lock type rigid plastic composite bulging molding equipment embodiment of the present invention. The large-diameter three-way pipe lock type rigid plastic composite bulging molding equipment in this embodiment includes an upper half-mold 1 and a lower half-mold 2, and a round 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 5 who...
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