A central feeding device for injection molding machines
By designing the pivot and sensor detection parts of the central feeding device of the injection molding machine, the problem of malfunctioning opening and closing plates caused by poor limit switch cam and limit switch contacts was solved, thus achieving stability and reliability of raw material transfer.
CN224275950UActive Publication Date: 2026-05-26WUHAN ZHIHEDA MASCH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN ZHIHEDA MASCH CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
In existing injection molding machine raw material supply devices, malfunctions in the limit switch cam and limit switch contacts lead to malfunctions in the opening and closing plates, resulting in frequent problems with material transfer.
Method used
A central feeding device for injection molding machines is adopted. Through the cooperation of the pivot and the sensor detection unit, the cylinder drives the cover plate to rotate to open or close the discharge port. The sensor detects the rotation status of the pivot shaft to avoid the limit switch from malfunctioning due to loose bolts.
Benefits of technology
This effectively avoids poor material transfer caused by malfunctioning opening and closing plates, thus improving the reliability and stability of material supply.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224275950U_ABST
Abstract
This utility model provides a central feeding device for an injection molding machine, including a receiving bin, a cover, a mounting part, a discharge part, a pivoting part, and a sensor detection part. The pivoting part includes a cover plate, a pivot shaft, a pivot rod, and a cylinder. The pivot shaft is rotatably mounted on the mounting part, the cover plate is fixedly mounted on one end of the pivot shaft, one end of the pivot rod is fixedly connected to the other end of the pivot shaft, and the cylinder is mounted on the other end of the pivot rod. The cylinder drives the cover plate to flip outward through the pivot rod and the pivot shaft, opening the cover plate to expose the discharge port for material discharge. After the material is fed, the cylinder drives the cover plate to flip in the opposite direction to close the discharge port. Throughout the process, the frequent opening and closing of the cover plate is achieved through the rotation of the pivot shaft and the pivot rod, avoiding the frequent poor material transfer caused by the loose bolts on the opening and closing plate leading to poor contact of the limit switch cam and the limit switch, which causes malfunction of the limit switch.
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