Horizontal Package Opening Structure for Uniform Bag Expansion
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Solution Overview
Problem
Existing horizontal packaging machines suffer from poor bag opening effects due to the inability to expand the lower portion of packaging bags, leading to bending and potential spillage during filling.
Innovation Solution
A continuous horizontal packaging machine with a package opening device comprising upper and lower suction members and pushing blocks to expand the upper and lower portions and sides of each package, ensuring even expansion and preventing bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If only suction members are used to open the packaging bag, then the upper portion of the bag can be opened, but the lower portion remains flat and bent
Solution Approach 1:
The package opening device is divided into an upper package opening unit with upper suction members and a lower package opening unit with lower suction members. This segmentation allows independent control of the upper and lower portions of the packaging bag, enabling the lower portion to be expanded separately to prevent bending while maintaining the opening function of the upper portion.
Solution Approach 2:
The invention introduces a vertical dimension to the bag opening process by adding lower suction members below the packaging bag. This dimensional expansion allows simultaneous suction and expansion of both upper and lower portions of the bag, transforming the single-point opening action into a multi-point three-dimensional expansion that prevents bending.
2Reliability
If the lower portion of the packaging bag is not expanded, then the structure remains simple, but the bag bends during filling causing spillage
Solution Approach 1:
The opening device is segmented into upper and lower units with independent suction members. This segmentation provides reliable support for both upper and lower portions of the bag during filling, preventing bending and spillage while keeping each unit's structure relatively simple and manageable.
Solution Approach 2:
The invention changes the suction parameters by introducing lower suction members that can be independently controlled. By adjusting the suction force and positioning of the lower suction members, the bag lower portion is expanded to an optimal degree that prevents bending during filling without requiring overly complex device structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The package opening device effectively expands packages to prevent bending, allowing smooth filling and sealing, thereby enhancing the packaging process efficiency and yield.
Implementation Method 1
uses the upper suction members to suck the front and back surfaces of the upper portion of each package, the lower suction members to suck the front and back surfaces of the lower portion of each package
Implementation Method 2
the pushing blocks to push and squeeze the left and right sides of each package
Data Source
AI summary
A package opening device of a continuous horizontal packaging machine includes upper and lower package opening units and a squeezing unit. The upper package opening unit includes two upper slide blocks, and two upper suction members respectively fixed to and driven by the upper slide blocks to relatively move in a transverse direction. The squeezing unit includes a guide rail extending in a horizontal direction perpendicular to the transverse direction, and two pushing blocks slidably disposed on the guide rail and movable relative to each other. The lower package opening unit is lower than the upper package opening unit in a height direction perpendicular to the horizontal and transverse directions, and includes two lower slide blocks, and two lower suction members respectively fixed to and driven by the lower slide blocks to relatively move in the transverse direction.