Device and method for splicing the ends of elastomeric compound strips
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Solution Overview
Problem
Existing methods for splicing the ends of elastomeric compound strips with anti-adhesive treatment fail to ensure sufficient adhesion due to the anti-adhesive treatment, and require discontinuous movement, which is not suitable for this application.
Innovation Solution
A device with a movable rotating element connected to a profile splicing element that applies force perpendicular to the strips' surface, allowing for continuous splicing without perforation, and using a mechanism that adjusts the position and force applied based on the strip thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pressure splicing is applied locally at a single point or by a moving tool, then the splicing process can be simplified, but the adhesion is insufficient due to the anti-adhesive treatment of both strips
Solution Approach 1:
The splicing device is divided into a stationary splicing element and a movable splicing element that can be independently positioned and controlled. This segmentation allows the movable element to apply pressure specifically at the contact interface between strips while the stationary element provides structural support, thereby achieving both process simplicity and sufficient adhesion pressure.
Solution Approach 2:
A movable splicing element acts as an intermediary between the two anti-adhesive strips, transferring pressure from the actuator to the contact interface. This intermediary mechanism enables controlled pressure application at the splice point without requiring the strips themselves to provide adhesion, thus overcoming the anti-adhesive treatment barrier.
2Productivity
If transverse movement of the splicing device is used, then splicing of elastomeric materials can be achieved, but the anti-adhesive treatment prevents sufficient adhesion because the layers come into contact perpendicular to the strip movement direction
Solution Approach 1:
The splicing device employs dynamic positioning where the movable splicing element can be positioned and held stationary at the precise splice location during the bonding process. This dynamic control allows the element to apply pressure perpendicular to the strip surface while the strips move longitudinally, maintaining optimal contact conditions despite the anti-adhesive treatment.
Solution Approach 2:
The splicing system applies pressure locally at the contact interface between strips through the movable splicing element, rather than uniformly across the entire strip surface. This localized pressure application ensures sufficient adhesion at the critical splice point while minimizing interference with the anti-adhesive treatment on the rest of the strip surfaces.
3Ease of operation
If discontinuous movement of the spliced strips is required, then certain splicing methods can be used, but continuous operation is needed for elastomeric compounds with anti-adhesive treatment
Solution Approach 1:
The splicing device is designed to maintain continuous operation by keeping the movable splicing element positioned at the splice point while strips are fed continuously through the device. The actuator continuously applies pressure during the entire bonding process, eliminating the need for stopping or reversing the strip movement, thus achieving both ease of operation and continuous productivity.
Solution Approach 2:
The movable splicing element automatically maintains pressure at the splice interface through the actuator mechanism while the strips continue to move through the device. The system self-regulates the pressure application without requiring external intervention or discontinuous movement, enabling continuous operation with anti-adhesive treated strips.
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 solution enables effective splicing of elastomeric compound strips with anti-adhesive treatment, ensuring strong and reliable joints without breakage, and allowing for continuous operation without the need for discontinuous movement.
Implementation Method 1
The rotatable element is arranged, by means of a pressure mechanism, to exert a force in a direction perpendicular to the surface of the spliced strips of the elastomeric compounds with the anti-adhesive treatment at the splice point of the strips of the elastomeric compounds with the anti-adhesive treatment
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
A device for splicing the ends of elastomeric compound strips, preferably with an anti-adhesive treatment, comprising a rotatable element (2), a profiled splicing element (3) coupled to the rotatable element (2), a pressure mechanism (5), a supporting frame (1), a support element (6) and a rotatable element (2): - is movable by means of a pressure mechanism (5) relative to the supporting frame (1) and the support element (6) and is subjected to a force in a direction perpendicular to the surface of the end (88a,88c) of the strip of the anti-adhesion compound (8a) and the surface of the end (88b) of the strip of the anti-adhesion elastomeric compound (8b) at the place (C) of the splice, - has an axis (R) of rotation perpendicular to the vector (v) of movement of the elastomeric compound strips (8a, 8b) with the anti-adhesion treatment while having a rotary movement formed by the mechanism (4) for forming the rotary movement.