Sheet Splicing Punch Plate for Mixed-Material Joining
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Solution Overview
Problem
Existing splicing devices are inadequate for splicing materials with different physical and chemical characteristics, particularly in the manufacturing of heat-not-burn articles that require splicing tobacco and plastic sheets, as they do not effectively handle the diverse materials used.
Innovation Solution
A splicing device with a punch plate and counter plate featuring arrays of splicing protrusions and holes, allowing for interpenetration and mechanical deformation of sheets, along with optional heating and liquid application to enhance the splice strength, and a detacher mechanism for easy release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional splicing devices are used for splicing materials with different physical and chemical characteristics, then the device structure remains simple, but the splicing reliability deteriorates
Solution Approach 1:
The splicing device employs dynamically adjustable splicing pressure through a movable punch plate mechanism. The punch plate can be pressed against the counter plate with variable force, allowing adaptation to different material properties such as tobacco sheets, plastic sheets, and metal sheets. This dynamic pressure adjustment enables the same device to achieve reliable splicing across diverse materials without requiring multiple specialized devices.
Solution Approach 2:
The device changes the splicing pressure parameter to accommodate different material characteristics. By adjusting the pressing force applied by the punch plate, the device can optimize the splicing process for various materials. The array of splicing protrusions and holes works in conjunction with variable pressure to create effective interpenetration and mechanical deformation tailored to each material type.
2Strength
If splicing protrusions and holes are added to achieve strong splicing, then the splice strength improves, but the device complexity increases
Solution Approach 1:
The splicing function is segmented into multiple discrete protrusions and holes arranged in arrays on the punch plate and counter plate. Instead of using a single complex splicing mechanism, the device employs multiple simple, identical splicing elements distributed across the plates. This segmentation allows each element to perform a simple piercing and interlocking function, while the collective array achieves strong splicing results. The modular nature of repeated identical elements keeps the overall device structure relatively simple.
Solution Approach 2:
The splicing protrusions on the punch plate fit into corresponding splicing holes on the counter plate, creating a nested interlocking structure. This nesting arrangement allows the two sheets of material to interpenetrate and form a strong splice through the embedded protrusion-hole connections. The nested design efficiently uses space and material while achieving high splice strength without requiring complex external mechanisms.
3Strength
If perforation is performed during splicing to achieve material interpenetration, then the splice strength improves, but the manufacturing precision requirements increase
Solution Approach 1:
The splicing protrusions and holes are positioned at specific locations on the punch plate and counter plate to correspond with each other. This local quality approach ensures that the critical splicing function is concentrated at the correct positions where the protrusions will penetrate the material and interlock with the holes. The predetermined positioning of these features on the plates ensures accurate alignment during the splicing process, achieving strong splicing without requiring high precision in manual operation.
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 device achieves strong and reliable splicing of various materials, including tobacco, plastic, and metal sheets, ensuring continuous production without machine interruptions, and is adaptable to different materials through adjustable splicing pressure and detacher functionality.
Implementation Method 1
mechanical deformation of the two sheets of materials in the region of the splicing protrusions and corresponding splicing holes
Implementation Method 2
a very expressed interpenetration of the two sheets of material is achieved and leads to a very strong splice
Implementation Method 3
the splicing device may comprise a heating element adapted to heat at least one of the two sheets of material
Implementation Method 4
The splice may be even stronger if the material to be spliced is prone to plastic deformation or partial melting
Implementation Method 5
the splicing device may comprise a liquid supply adapted to supply a liquid to at least one of the two sheets of material
Data Source
AI summary
A splicing device is provided, including: a punch plate and a counter plate arranged oppositely to the punch plate, the punch plate and the counter plate being relatively movable versus each other and configured to splice two sheets of material arrangeable in between the punch plate and the counter plate, the punch plate including an array of splicing protrusions and the counter plate including an array of splicing holes, the array of splicing holes including a number of splicing holes and the array of splicing protrusions including a number of splicing protrusions, a number of splicing holes being at least the same as a number of splicing protrusions, and a position of the splicing protrusions in the array of splicing protrusions corresponding to a position of the splicing holes in the array of splicing holes.