Hot-pressing forming compound die for boiler smoke chamber pipe plate

Abstract

The invention discloses a hot-pressing forming compound die for a boiler smoke chamber pipe plate, which comprises a forming upper die, a forming lower die, a stripper ring, a flange female die and a punch, wherein the forming upper die is a cylinder with an eccentric cylindrical hole, and a circumferential boss is arranged on the outer wall at the lower end of the forming upper die; the stripperring is a T-shaped cylinder, and the stripper ring is movably sheathed on the forming upper die; a fixed support is mounted below the forming lower die, and a cylindrical hole which is coaxial with the stripper ring is arranged in the forming lower die; the flange female die is positioned below the forming upper die, the upper end of the flange female die extends into the forming lower die, and apneumatic support is mounted below the flange female die; and the upper end of the punch is the cylinder, the lower end of the punch is a cone, when the upper end of the punch is inserted into the cylindrical hole of the forming upper die and pressed down together with the forming upper die, the cone at the lower end of the punch penetrates through the flange female die. The boiler smoke chamber pipe plate with the eccentric hole is formed through one set of the compound die, and the automatic stripping can be realized, thereby being time-saving, labor-saving and energy-saving and simultaneously improving the qualification rate of products.

Description

technical field [0001] The invention relates to a forming mold for a tube plate of a boiler smoke chamber, in particular to a composite mold for hot-pressing forming of a tube plate of a boiler smoke chamber. Background technique [0002] Boiler smoke chamber tube plate with eccentric holes (such as figure 1 As shown), boiler manufacturers generally adopt hot press forming, and usually put in two sets of molds, one set of inner edge mold and one set of outer edge mold, either the inner edge first and then the outer edge, or the outer edge first and then the outer edge There are two pressing methods on the inner edge. Since the two sets of molds are formed twice successively, two heating and pressing processes are required, which is time-consuming, labor-intensive and energy-consuming; there is no demoulding device for the outer edge, which makes it difficult to demould the workpiece; two sets of molds for the inner edge and the outer edge Pressing, the location and size of...

AI Technical Summary

Problems solved by technology

Since the two sets of molds are formed twice successively, two heating and pressing processes are required, which is time-consuming, labor-intensive and energy-consuming; there is no demoulding device for the outer edge, which makes it difficult to demould the workpiece; two sets of molds for the inner edge and the outer edge Pressing, the location and size of the hole cannot be guaranteed, resulting in scrap

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