Sheet Separation Device Using Thermal Heating Elements
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Solution Overview
Problem
Conventional sheet separation devices are large and expensive due to the use of large suction devices to separate two-ply sheets, which increases their size and cost.
Innovation Solution
A sheet separation device that includes a winding mechanism to create a gap between the two sheets of a two-ply sheet by winding the sheets around a roller, allowing separation claws to insert and separate the sheets without increasing the device's size, and guide them to different conveyance paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large suction devices are used to separate two sheets, then separation effectiveness is improved, but device size and cost increase
Solution Approach 1:
The patent replaces the conventional suction-based mechanical separation system with a thermal separation mechanism. The separation head includes heating elements that apply heat to the bonding portion of the two-ply sheet, causing the adhesive to melt or weaken, thereby enabling separation without requiring large suction devices. This substitution of thermal action for mechanical suction resolves the contradiction by achieving effective separation while maintaining a compact device size.
Solution Approach 2:
The patent changes the physical parameter of the bonding portion by applying heat to alter the adhesive properties. The heating elements in the separation head raise the temperature of the bonding portion, changing the adhesive from a bonded state to a separated state. This parameter change (temperature) enables effective separation without requiring the large mechanical suction systems that would otherwise be needed.
2Reliability
If large suction devices are used to separate two sheets, then separation effectiveness is improved, but device cost increases
Solution Approach 1:
The patent replaces expensive mechanical suction devices with a simpler thermal separation system. The separation head with heating elements is mechanically and economically simpler to manufacture than large suction devices. This substitution resolves the cost contradiction by achieving the same separation effectiveness through a more economical thermal mechanism rather than expensive mechanical suction components.
Solution Approach 2:
The patent employs a disposable or replaceable separation head that contains the heating elements. This head can be easily replaced when worn or damaged, rather than requiring expensive repair or replacement of entire suction device assemblies. This approach reduces overall device cost while maintaining separation effectiveness.
3Area of stationary object
If a compact separation device is used, then device size is reduced, but separation capability may be compromised
Solution Approach 1:
The patent uses thermal energy concentration in a compact separation head to achieve separation capability that would otherwise require large mechanical systems. The heating elements are concentrated in a small-area separation head that contacts only the bonding portion of the sheet, providing effective separation in a compact device format.
Solution Approach 2:
The patent applies heat locally only to the bonding portion of the two-ply sheet through the separation head, rather than requiring global mechanical action across the entire sheet. This localized thermal application enables effective separation in a compact device, as only the specific bonding area needs to be treated, not the entire sheet surface.
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
Effectively separates the two sheets of a two-ply sheet without increasing the size or cost of the separation device, allowing for efficient and cost-effective operation.
Implementation Method 1
A sheet separation device separates a non-bonding portion of a two-ply sheet in which two sheets are overlapped and bonded together at one end as a bonding portion of the two-ply sheet
Implementation Method 2
separation claws to insert and separate the sheets without increasing the device's size, and guide them to different conveyance paths
Data Source
Figure 1~2B
Figure 3A~3B
Figure 4A~4D
AI summary
A sheet separation device (1) separates a non-bonding portion (B) of a two-ply sheet (PJ) in which two sheets (P1, P2) are overlapped and bonded together at one end (A) as a bonding portion (A) of the two-ply sheet (PJ). The sheet separation device (1) includes two branched conveyance paths (K4, K5) and a separator (16). The two branched conveyance paths (K4, K5) are branched in different directions. The separator (16) is configured to be inserted into a gap (C) formed between the two sheets (P1, P2) of the two-ply sheet (PJ), separate the two sheets (P1, P2), and guide the two sheets (P1, P2) to the two branched conveyance paths (K4, K5), respectively.