Inner lubricating device of die-casting sealing punch

• Main Authors: ZHANG WEIYAN, HUANG ZHIYUAN, ZHANG YULONG, CHEN GUOEN, WANG XUEYANG
• Format: Patent
• Language: Chinese; English
• Published: 08.11.2022
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING

The invention discloses an inner lubricating device of a die-casting sealing punch, which comprises an injection rod, an injection pipe, a sealing punch, a shunting assembly and a lubricating liquid assembly, the sealing punch is slidably sleeved in an injection cavity of the injection pipe in a clearance fit manner, one end of the sealing punch is connected with the injection rod, and a lubricating channel is arranged in the injection rod; one end of the lubricating channel is communicated with the shunting assembly, and the other end is communicated with the lubricating liquid assembly; the lubricating liquid assembly comprises a liquid storage tank and an air source, the flow dividing assembly comprises a flow dividing ring, a flow dividing hole communicated with the lubricating channel is formed in the inner side of the flow dividing ring, and the flow dividing hole is provided with an atomizing nozzle. When the sealing punch retreats, the atomizing nozzle sprays atomized lubricating liquid in the injecti