Bag making machine for plastic bag production

By installing the expansion and limiting blocks on the bag making machine, the problem that the existing bag making machine cannot effectively tighten the edge of the plastic bag and lack of limiting mechanism is solved, and the sturdiness of the seal and the accuracy of the rewinding position are achieved, which reduces labor intensity.

CN222590871UActive Publication Date: 2025-03-11YANTAI YOUSHENG PACKAGING CO LTD
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Patent Information

Application Number
CN202420915541.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-29
Publication Date
2025-03-11
Estimated Expiration
2034-04-29

AI Technical Summary

Technical Problem

The existing bag making machines cannot effectively tighten the edge of the plastic bag when sealing the plastic bag, resulting in the sealing not being strong enough and lacking a limiting mechanism for the plastic bag during movement, resulting in the rewinding of the sealed plastic bag being easily offset.

Method used

A bag making machine for plastic bag production is designed, using a tightening mechanism, unwinding roller and winding roller. By installing a tightening mechanism and a limiting block on the rack, heat sealing and limiting of the plastic bag roll is achieved, ensuring the firmness of the seal and the accuracy of the position.

Benefits of technology

The edge of the plastic bag is effectively tightened by the expansion and tightening mechanism to ensure the firmness of the seal; the limit block prevents the plastic bag roll from moving up and down during the movement, reducing the labor intensity of the workers and improving the quality of the seal.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222590871U_ABST
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Abstract

The utility model discloses a bag making machine for plastic bag production, which comprises a machine frame, connecting frames are symmetrically and fixedly arranged on two sides of the machine frame, the two connecting frames are respectively and rotatably connected with a limiting disc, the limiting disc on one side is fixedly connected with an unwinding roller, and the limiting disc on the other side is fixedly connected with a winding roller. Expansion mechanisms are symmetrically arranged on the two sides of the machine frame, the expansion mechanisms, the unwinding roller and the winding roller are installed on the machine frame, a plastic bag roll can be rapidly and sequentially subjected to heat sealing treatment, the expansion mechanisms can effectively tension bag materials, the bag materials are prevented from loosening or wrinkling at the heat sealing position, and the heat sealing effect of the bag materials is improved. And the plastic bag roll can be limited by installing the second limiting block on the fixed roller, the plastic bag roll is prevented from moving up and down in the horizontal moving process, and the labor intensity of workers is reduced.
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