Automatic demolding device for bottle preform mold
By combining a motor-driven gear and rack mechanism with a cooling pipe, uniform demolding of the preform mold is achieved, solving the problems of damage caused by uneven mold stress and unsmooth demolding, thus improving production efficiency and product quality.
CN224275831UActive Publication Date: 2026-05-26DONGGUAN HUAZHI MASCH EQUIP CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HUAZHI MASCH EQUIP CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Uneven force during the demolding process of existing preform molds can lead to mold damage or unsmooth demolding, affecting production efficiency and product quality.
Method used
The motor-driven rack and pinion mechanism drives the lead screw to rotate synchronously through gear meshing, which in turn drives the lifting rod and the ejector block to move synchronously, achieving uniform ejection of the mold. Combined with the cooling pipe, the inner cavity of the mold is cooled to ensure that the mold is subjected to uniform force during demolding.
Benefits of technology
This ensures uniform stress on the mold during demolding, avoiding mold damage and uneven demolding, thus improving production efficiency and product quality.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224275831U_ABST
Abstract
The utility model relates to an automatic demoulding device for a bottle preform mould in the field of demoulding devices, which comprises a base, a lower mould plate is mounted on the upper surface of the base, and an upper mould plate is arranged on the lower mould plate. A motor is arranged in an inner cavity of the base, a motor rotor is coaxially provided with a first gear, the first gear is meshed with a second gear, and the second gear is meshed with a third gear. The surfaces of the lead screws are connected with lifting rods in a screwed mode, and the top ends of the lifting rods are provided with top blocks. Bottle blank forming cavities are formed in inner cavities of the lower mold plate and the upper mold plate; mounting grooves are formed in positions corresponding to the top blocks. In the working process, the motor drives the first gear to rotate, the second gear drives the third gear to rotate, the two lead screws rotate synchronously, then the lifting rod and the ejector block are driven to ascend or descend synchronously, and a bottle preform is ejected out of the mounting groove synchronously. According to the device, through a synchronous and stable ejection mode, it is ensured that the mold is evenly stressed in the demolding process, the situation that the mold is damaged or unsmooth in demolding due to uneven stress is effectively avoided, and stable demolding is achieved.
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