Pre-foaming device

Abstract

The utility model relates to the technical field of pre-foaming devices, in particular to a pre-foaming device which comprises a box body, a storage rack is fixedly connected to the bottom of the box body, a feeding box is fixedly connected to the middle of the upper surface of the box body, a feeding plate is fixedly connected to the inner top of the box body, and a movable box is fixedly connected to the bottom of the feeding plate. The foaming machine comprises a foaming chamber, a movable box is arranged in the foaming chamber, a feeding box is movably connected into the movable box, and a vibration assembly used for assisting discharging of foam particles is installed at the bottom of the feeding box. The vibration assembly is arranged, under driving of a vibration motor, the foaming chamber shakes and vibrates, and the foam particles sinking and floating at the bottom of the foaming machine are shaken to the position above the foaming machine in the vibration process; and in the discharging process, foam particles can be assisted to be pushed upwards, smooth discharging is ensured, a second extrusion rod is matched with a damping spring, a damper and a second supporting rod to achieve the damping effect, materials are filtered into a material storage box through a filter plate during discharging, and unqualified materials can be screened out.

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