Polyurethane sleeper pad preparation tool

• Main Authors: ZHANG SONGQI, ZHANG BIN, XIAO JUNHENG, LIU ZHI, ZHANG YONG, JIA TONGJUN, ZHAO WEIWEI, WEI YONGWANG
• Format: Patent
• Language: Chinese; English
• Published: 06.09.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The utility model discloses a polyurethane sleeper pad preparation tool which comprises a lower die plate, a middle die plate and an upper die plate, and a die groove is formed in the lower die plate. The middle mold plate is formed by splicing a plurality of parallel module plates, a plurality of through holes can be formed by splicing every two adjacent module plates, and the middle mold plate is arranged to be capable of covering the mold groove in a sealing mode and enabling a foaming cavity to be formed in the mold groove; a plurality of lower grooves in one-to-one correspondence with the through holes are formed in the bottom surface of the die cavity; and a plurality of upper grooves in one-to-one correspondence with the through holes are formed in the bottom surface of the upper die plate. The polyurethane sleeper pad preparation tool can be used for preparing three-dimensional polyurethane sleeper pad products with complex structures on the upper side and the lower side, and the problem that the slee