Vertical Powder Shaking And Drying Machine for Film Wrinkle Prevention
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Solution Overview
Problem
Existing powder shaking and drying machines have large footprints, cause film wrinkling due to horizontal drying, and pose environmental pollution risks from exhaust gas leakage.
Innovation Solution
A vertical powder shaking and drying machine design with angled heating hoods, internal suction plates, and a purification and suction duct system, along with a powder recycling assembly, ensures compact footprint, prevents film wrinkling, and minimizes exhaust gas leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a horizontal drying design is used, then the drying area can be extended, but the footprint becomes large and the printed film develops wrinkles
Solution Approach 1:
The patent transitions from a horizontal drying configuration to a vertical drying configuration. The heating components are arranged vertically above the printed film path, allowing the drying process to extend in the vertical dimension rather than horizontally. This dimensionality change enables sufficient drying area while maintaining a compact horizontal footprint, directly resolving the technical contradiction between drying area and footprint size.
2Duration of action of moving object
If horizontal drying is used, then the drying process can be extended, but the printed film shrinks and develops wrinkles affecting quality
Solution Approach 1:
By reconfiguring the drying system from horizontal to vertical orientation, the patent changes the direction in which the drying process extends. The vertical arrangement allows the printed film to be pulled upward through the heating zones, counteracting shrinkage forces and preventing wrinkle formation while maintaining an extended drying process duration.
Solution Approach 2:
The vertical drying configuration utilizes gravitational force acting on the printed film to counterbalance the shrinkage forces that occur during heating. The downward pull of gravity on the film tensions it as it moves through the vertical heating zones, preventing the film from buckling or wrinkling while still allowing sufficient time for the drying process to complete.
3Object-generated harmful factors
If external exhaust fans are used for discharge, then exhaust gas can be removed, but exhaust gas leakage occurs at film inlet and outlet causing environmental pollution
Solution Approach 1:
The patent integrates the exhaust gas discharge function directly into the heating hood structure. The exhaust fans are incorporated within the heating hoods that already surround the drying zone, combining the heating and exhaust functions in a single integrated component. This merging eliminates separate exhaust openings at the film inlet and outlet, preventing exhaust gas leakage while maintaining effective exhaust gas removal.
Solution Approach 2:
The heating hood acts as an intermediary structure that simultaneously performs heating and exhaust gas collection functions. By positioning the exhaust fans within the heating hood, the system uses the existing hood structure as a mediator to capture and remove exhaust gases at their source, preventing leakage at the film inlet and outlet while maintaining effective ventilation.
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 vertical design saves space, prevents film wrinkling, and reduces environmental pollution by collecting and purifying exhaust gases, while the powder recycling system simplifies operations and conserves materials.
Implementation Method 1
a side of the frame close to the discharging port is externally provided with heating hoods
Implementation Method 2
the rear end thereof heats the PET film such that the hot melt adhesive powder is melt
Implementation Method 3
the frame is internally provided with suction plates corresponding to the heating hoods; a purification and suction duct is provided above the suction plate
Implementation Method 4
the powder returning assembly includes a powder returning screw, a powder returning groove, a powder storage box, and a powder taking pipe; the powder returning screw is located in the powder returning groove
Implementation Method 5
in the vertical drying design, the shrinkage force received by the printed film is counteracted by the gravitational force of pulling
Data Source
AI summary
A vertical powder shaking and drying machine includes a frame, where the frame includes a feeding port provided on one side and a discharging port provided on the other side; a side of the frame close to the discharging port is externally provided with heating hoods; at least one heating hood is at an angle to a horizontal plane; the frame is internally provided with suction plates corresponding to the heating hoods; at least one suction plate is provided along a perpendicular direction; a purification and suction duct is provided above the suction plate; the purification and suction duct is located inside the frame; a side of the frame close to the feeding port is internally provided with a powder shaking box; and the powder shaking box is communicated with the feeding port and located at a front end of the suction plate.