Multi-station water swelling device for vacuum cup production

By using the mechanical linkage design of the multi-station water expansion device, the problem of independent control of fixing and liquid injection in the water expansion molding of thermos cups is solved, realizing stable molding of blanks and recovery of residual liquid, thereby improving production efficiency and equipment stability.

CN122441808APending Publication Date: 2026-07-24ZHEJIANG CHENGCHENG DAILY NECESSITIES CO LTD
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Patent Information

Application Number
CN202610928395.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-25
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing thermos cup water expansion molding technology, the independent control of fixing and liquid injection leads to the loss of synchronization of actions. The cleaning station for residual liquid after molding increases the cycle time, the control logic is complicated and the equipment stability decreases.

Method used

A multi-station water expansion device is adopted, which uses the injected liquid to drive the controller and the rotatable adsorber to achieve synchronous fixing of the billet, injection and residual liquid recovery. Mechanical linkage is used to replace electrical control to ensure the synchronization and stability of the action.

Benefits of technology

It simplifies the control logic, reduces equipment costs and fault points, improves production efficiency and molding consistency, and avoids billet damage and residual liquid contamination caused by the response delay of electronic control components.

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Abstract

The invention relates to the technical field of vacuum cup production, in particular to a multi-station water swelling device for vacuum cup production. The device comprises a water swelling forming body and a fixed material adsorption body, the water swelling forming body comprises a split type mold and a liquid injection structure, and the fixed material adsorption body comprises an adsorber and a controller. According to the injection molding device, the controller pushed by the injected liquid is matched with the adsorber capable of being rotationally opened and closed, the movable plate is directly driven by kinetic energy of liquid flow during liquid injection to move downwards, the contact pipe is driven to rotate, and the second suction hole and the first suction hole are staggered, so that the adsorber is synchronously closed at the moment of liquid injection molding, and a blank is released; after liquid injection is stopped, the torsional spring drives the contact pipe to reset, so that the suction hole is communicated again, the negative pressure of the adsorber is recovered immediately, residual liquid in the blank is adsorbed and recycled, and an independent electric control loop, a position sensor and an additional residual liquid cleaning station do not need to be arranged; and out-of-step of fixing and liquid injection actions and blank damage caused by response delay of the electric control element are effectively avoided.
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