Calender Support Group Axial Positioning Textile Lap Winder
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Solution Overview
Problem
The existing lap forming devices for textile machines, particularly lap-winders, face challenges with awkward support structures that interfere with the calenders, making it difficult to manage the tube or lap effectively during the forming process.
Innovation Solution
A lap forming device with a support system that includes a primary calender with a smaller diameter than the secondary calender, a belt device, and a mobile slide, along with a carriage and loading arm, which allows for the precise positioning and support of the tube or lap without interference from other device parts, enabling efficient winding and formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a support structure is added to hold the calenders, then the calenders can be properly positioned and supported, but the support organs interfere with the plates that define the axial area
Solution Approach 1:
The support arms are positioned within the axial space defined by the plates, nesting the support function within the existing structural boundaries. The support arms extend radially inward from the calender and are contained within the axial limits set by the plates, allowing support without interference.
Solution Approach 2:
The support structure transitions from a vertical support arrangement to a radial arrangement. The support arms extend radially inward from the calender toward the central shaft, changing the dimension of support from vertical to radial, thereby avoiding interference with the axially-positioned plates.
2Volume of moving object
If the primary calender diameter is reduced to fit within device constraints, then the device becomes more compact and efficient, but the support organs may interfere with the plates
Solution Approach 1:
The support arms are made rotatable about the central shaft, allowing dynamic adjustment of their position. This rotational capability enables the support arms to clear the plates during operation and maintenance, providing ease of operation despite the compact calender size.
Solution Approach 2:
The support function is divided into separate rotatable support arms rather than a fixed continuous structure. This segmentation allows each arm to independently rotate and adjust its position, facilitating maintenance and operation of the compact primary calender.
3Ease of repair
If support arms are made rotatable for ease of maintenance, then the belt device can be easily replaced, but the support mechanism becomes more complex
Solution Approach 1:
The belt device is extracted as a separate, removable component from the calender assembly. The rotatable support arms are designed to clear the belt during rotation, allowing the belt to be easily removed and replaced without disassembling the support mechanism itself.
Solution Approach 2:
The support arms are pre-positioned and designed to automatically clear the belt path when rotated to the maintenance position. This preliminary design of the rotation mechanism eliminates the need for complex disassembly procedures during belt replacement.
Data Source
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AI summary
A lap forming device (1) comprises a primary calender (22) and a secondary calender (24) and a support group (60) for the primary calender (22) able to support said calender so as to rotate. The support group comprises at least one support arm (70a, 70b) which supports the primary calender (22) in an intermediate position along the axial dimension of the primary calender (22).