Pipe Peeling Arm Assembly for Uniform Surface Removal
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Solution Overview
Problem
Existing peeling devices for plastic pipes struggle with inconsistent material removal due to ovalities and uneven surfaces, leading to inadequate surface smoothing and potential connection issues between pipes and fittings.
Innovation Solution
A peeling device with a clamping assembly and peeling arm unit that maintains alignment with the pipe's central axis, featuring a pivotable peeling knife arrangement and adjustable force application to ensure consistent material removal and surface quality, accommodating ovalities and varying diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional scraping devices are used on plastic pipes with ovalities and surface irregularities, then the device structure is simple, but the material removal becomes inconsistent and surface quality deteriorates
Solution Approach 1:
The peeling device employs a dynamic arm unit that can pivot and adjust its position relative to the pipe surface. The arm is connected to the clamping assembly via a pivotable connection, allowing it to adapt to ovalities and maintain consistent contact pressure throughout the peeling operation, thereby achieving uniform material removal and high surface quality without requiring an overly complex rigid structure
Solution Approach 2:
The device incorporates adjustable parameters including the position of the peeling knife on the arm, the angle of the arm relative to the pipe axis, and the clamping force applied to the pipe. These parameter adjustments allow the same basic device structure to accommodate various pipe diameters, ovalities, and surface conditions, maintaining manufacturing precision across different operating conditions
2Manufacturing precision
If fixed-position peeling knives are used, then the device structure is simple, but the alignment with pipe axis cannot be maintained under varying conditions
Solution Approach 1:
The peeling knife is mounted on a pivotable arm that can dynamically adjust its position and orientation. The arm pivots about an axis that allows the knife to maintain alignment with the pipe's central axis even when the pipe exhibits ovalities or when operating conditions change. This dynamic adjustment capability ensures consistent alignment precision without requiring multiple fixed-position knife assemblies
Solution Approach 2:
The pivotable arm mechanism allows the peeling device to self-adjust to the pipe geometry during operation. As the arm contacts the pipe surface, it naturally pivots to the correct angle and position, maintaining alignment without requiring external adjustment mechanisms or complex control systems
3Manufacturing precision
If high clamping force is applied to maintain knife contact with pipe surface, then material removal consistency improves, but the risk of pipe deformation increases
Solution Approach 1:
The peeling knife is mounted on a pivotable arm that can dynamically adjust its position and orientation. The arm pivots about an axis that allows the knife to maintain alignment with the pipe's central axis even when the pipe exhibits ovalities or when operating conditions change. This dynamic adjustment capability ensures consistent alignment precision without requiring overly tight clamping
Solution Approach 2:
The device incorporates adjustable parameters including the position of the peeling knife on the arm, the angle of the arm relative to the pipe axis, and the clamping force applied to the pipe. These parameter adjustments allow the same basic device structure to accommodate various pipe diameters, ovalities, and surface conditions, maintaining manufacturing precision across different operating conditions
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
Ensures uniform material removal and high surface quality, enhancing the quality of connections between pipes and fittings by compensating for pipe irregularities and maintaining knife alignment.
Implementation Method 1
an elastic element (54) arranged between the first end (32a, 34a) of the peeling arm unit and the pressure plate section (54), which applies a deflection force to the peeling arm unit
Implementation Method 2
a peeling knife arrangement (40) arranged at a first end of the peeling arm unit (30), wherein the peeling knife arrangement (40) has a peeling knife (44)
Data Source
Figure 1
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AI summary
The invention relates to a peeling device (S) for at least partially removing the surface of an at least approximately tubular body (R) with a central axis (MR), in particular a plastic tube, comprising: a clamping assembly (10; 310; 410; 510) with a central axis (MS) and at least one clamping element (14, 314, 414, 514) for clamping the peeling device (S) to the tubular body (R), a peeling assembly (20) with a peeling arm unit (30, 130, 230), a peeling knife arrangement (40, 140) arranged at a first end (30a, 130a, 230a) of the peeling arm unit (30), and a peeling arm support (60, 160) which connects the clamping assembly (10; 310; 410; 510) with the peeling arm unit (30, 130, 230) connects.The peeling arm unit (30, 130, 230) is connected with its first and second ends (30a, 130a, 230a; 30b, 130b, 230b) to the peeling knife assembly (40, 140) and the peeling arm carrier (60, 160) in such a way and is pivotable in the common plane with the central axis (MS) of the clamping assembly (10; 310; 410; 510) such that the peeling knife assembly (40, 140) maintains its orientation to the central axis (MS) of the clamping assembly (10, 310, 410, 510) in every pivot position of the peeling arm unit (30, 130, 230).The invention further relates to a clamping assembly (10; 110; 210; 310) as a tool carrier for a tool, such as a peeling tool, for machining an approximately tubular body (R) with a central axis (MR), in particular a plastic tube, having a central axis (MS), a carrier shaft (12, 312, 412, 512) arranged coaxially to the central axis (MS) of the clamping assembly (10, 310, 410, 510), and at least one clamping device (13, 14; 313, 314; 413, 414; 513, 514) arranged on the carrier shaft (12, 312, 412, 512) and directed substantially radially outwards.