Moulding die with movable drawing rib and solid particle medium radial thrust

A technology of radial thrust and granular media, which is applied in the field of stamping dies, can solve the problems of inability to change the resistance of variable drawbeads without radial thrust and the sealing of deep drawing dies, and achieve the advantages of large adjustment, convenient maintenance, and improved product quality Effect

Inactive Publication Date: 2010-10-20
CHONGQING UNIV OF TECH
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  • Summary
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  • Claims
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Problems solved by technology

[0004] The present invention aims at the problem that the existing mold cannot change the resistance of the variable drawbead and the conventional forming mold has no radial thrust and the sealing problem of the deep drawing mold with radial hydraulic pressure is difficult to solve, and provides a method with variable drawbead height and variable solid particle The amount of mold, so as to achieve variable drawbead resistance, provide radial thrust

Method used

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  • Moulding die with movable drawing rib and solid particle medium radial thrust
  • Moulding die with movable drawing rib and solid particle medium radial thrust

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Embodiment Construction

[0014] see figure 1 , shows the forming die with movable drawbead and radial thrust of the present invention, including upper die 1, punch 2, drawbead 3, binder plate 4, compression nitrogen cylinder 5, backing plate 6, lower die Seat 7, ejector pin 8, sealing plate 9, solid particle 10, top plate 11 and top material nitrogen cylinder 12; Upper mold 1 is installed on the inner slide block (not shown in the figure), and upper mold 1 is usually a die; Convex Die 2 is installed on the lower mold base 7, usually a punch as the lower die. Compression nitrogen cylinder 5 and top material nitrogen cylinder 12 are also installed on the lower mold base 7, the working end of compression nitrogen cylinder 5 is in contact with the lower surface of binder plate 4, and withstands the lower surface of binder plate 4; The cylinder 5 provides the required pressing force of the pressing plate 4 . The working end of the top material nitrogen cylinder 12 passes through the binder plate 4, conta...

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Abstract

The invention relates to a moulding die with a movable drawing rib and solid particle medium radial thrust, which comprises an upper die, a convex die, a pressure plate, a drawing rib, a padding plate, an ejecting rod, a nitrogen cylinder, a lower die seat, a seal plate, a solid particle, a top plate, and the like, wherein the ejecting nitrogen cylinder is installed on the lower die seat; the working end of the ejecting nitrogen cylinder penetrates through the pressure plate, is in contact with the top plate arranged in the pressure plate and ejects the lower surface of the top plate; the seal plate is installed on the pressure plate; the seal plate, the upper die, the pressure plate, the top plate and a blank form a sealed space in the moulding process; and the solid particle is arranged in the sealed space. The invention provides a novel die for compounding the movable drawing rib and radial solid particle medium thrust increase. The die has convenient control of drawing rib resistance, safe and reliable loading of radial thrust, no pollution, easier moulding in practical production and obvious improvement of moulding quality of products.

Description

technical field [0001] The invention belongs to stamping die technology, and specifically relates to a forming die with movable drawbeads and solid particle medium radial thrust, which is mainly aimed at variable drawbead heights while providing radial thrust. technical background [0002] Ordinary forming dies have no radial thrust, and the forming is completed by the punch driving the sheet and pulling it toward the die. For drawing dies with radial hydraulic pressure, the radial thrust is realized by liquid pressure, and the sealing problem is difficult to solve; at the same time, the drawing dies with hydraulic devices have a more complicated structure and higher cost. [0003] In the current stamping die, the ribs of the drawbead are usually fixed on the binder plate or the die, and the resistance of the drawbead is fixed throughout the drawing forming process. However, for the drawing forming that requires the resistance of the drawbead to change along with the stampi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D37/10B21D22/10
Inventor 李小平彭成允胡建军唐丽文夏华周志明张侠吴善勇
Owner CHONGQING UNIV OF TECH
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