氮气真空包装机
By improving the positioning components, gas path connections, and heat sealing structure of the nitrogen vacuum packaging machine, the problems of bag shifting and sealing during vacuuming, nitrogen filling, and heat sealing have been solved, achieving efficient and stable packaging results and adapting to the needs of packaging bags of different sizes and materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LVCHANG AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing nitrogen vacuum packaging machines are not precise enough in positioning the packaging bags, which makes the bags prone to shifting during vacuuming, nitrogen filling and heat sealing, affecting packaging quality; unreasonable air circuit design, incomplete vacuuming or difficulty in controlling the amount of nitrogen filling, unstable air circuit connection, and possible air leakage; and weak heat sealing structure, poor sealing performance, affecting the product preservation effect.
A packaging bag positioning component was designed, including a positioning groove and a driving component, which achieves precise positioning through a screw and slider structure; a nitrogen tank and a vacuum pump are connected by a three-way pipe, and a valve controls the gas flow; the heat sealing component consists of a fixed seat, a movable seat, and a cylinder that drives a movable heating plate to clamp and heat seal with a fixed heating plate, and is combined with a mounting bracket to fix the equipment components.
It achieves precise positioning of packaging bags, avoids deviation, ensures thorough vacuuming, accurate nitrogen filling, and strong heat sealing with good airtightness. This improves packaging quality, equipment versatility and efficiency, reduces air leakage, and extends product shelf life.
Smart Images
Figure CN224511575U_ABST
Abstract
Claims
1. A nitrogen vacuum packaging machine, comprising a processing platform (1), characterized in that: The processing platform (1) is equipped with a packaging bag positioning component (5). A heat sealing component (6) is installed at one end of the packaging bag positioning component (5). A nitrogen tank (3) and a vacuum pump (4) are provided on the outside of the heat sealing component (6). A three-way pipe (31) is installed on the outlet end of the nitrogen tank (3). The upper end of the three-way pipe (31) is connected to the suction end of the vacuum pump (4). One side end of the three-way pipe (31) is connected to the connector (71) of the packaging bag (7).
2. The nitrogen vacuum packaging machine according to claim 1, characterized in that: The nitrogen tank (3) and vacuum pump (4) are fixed to the upper part of the processing platform (1) by the mounting bracket (2).
3. The nitrogen vacuum packaging machine of claim 1, wherein: Valves are installed on the outlet end of the nitrogen tank (3) and the suction end of the vacuum pump (4).
4. The nitrogen vacuum packaging machine of claim 1, wherein: The packaging bag positioning component (5) includes a positioning groove (51), and a positioning plate (53) is symmetrically arranged in the positioning groove (51). The positioning plate (53) is driven by a driving component (52) to move closer to or separate from the packaging bag (7) to achieve positioning operation.
5. The nitrogen vacuum packaging machine according to claim 4, characterized in that: A clamping block (54) is installed on one side of the positioning plate (53), and a clamping opening (541) is provided on one side of the clamping block (54), which clamps and positions the side of the packaging bag (7).
6. The nitrogen vacuum packaging machine of claim 4, wherein: The driving component (52) includes a housing (521), and a screw (522) is provided inside the housing (521). The screw (522) includes two sections with opposite spiral directions. A slider (523) is threadedly connected to each section. The top of the slider (523) is connected to the positioning plate (53). One end of the screw (522) is driven to rotate by a drive motor (524).
7. The nitrogen vacuum packaging machine of claim 1, wherein: The heat sealing assembly (6) includes a fixed base (61) and a movable base (62). Lifting cylinders (63) are installed at the top of both ends of the fixed base (61). The top output shaft of the lifting cylinders (63) is connected to the movable base (62). A movable heating plate (64) is installed at the bottom of the movable base (62). A fixed heating plate (65) is installed at the top of the fixed base (61). One end of the packaging bag (7) is heat sealed by clamping the movable heating plate (64) and the fixed heating plate (65).