Stripping Unit for Plastic Pipes with Adjustable Peeling Force
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Solution Overview
Problem
Existing peeling devices for plastic pipes coated with a barrier or oxide layer lack a simple and effective mechanism to apply a defined peeling force, making it difficult to ensure consistent and adjustable contact pressure during the peeling process.
Innovation Solution
A peeling device with a pivoting and lockable sliding jaw mechanism, enabled by a lever mechanism, allows for adjustable contact pressure and precise positioning of the peeling knife, ensuring a defined and adjustable peeling force can be applied to the pipe, and the knife can be easily manipulated mechanically or manually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple peeling device structure is used, then device complexity is reduced, but the ability to apply a defined and adjustable peeling force is insufficient
Solution Approach 1:
The sliding jaw is made movable along the threaded spindle through a lever mechanism, allowing the peeling force to be dynamically adjusted by changing the position of the sliding jaw. This enables the device to apply a defined and adjustable peeling force while maintaining a relatively simple overall structure.
Solution Approach 2:
The contact pressure of the peeling knife on the pipe is made adjustable by changing the position of the sliding jaw along the threaded spindle. By varying the axial position of the sliding jaw, the peeling force parameter can be controlled and adjusted to achieve consistent and defined peeling results.
2Device complexity
If the peeling knife position is fixed, then device structure is simplified, but the ability to adjust contact pressure and cutting depth is limited
Solution Approach 1:
The sliding jaw is designed to be movable rather than fixed, allowing operators to adjust the contact pressure by sliding the jaw along the threaded spindle. The lever mechanism provides a simple means to achieve this adjustment without complicating the overall device structure.
Solution Approach 2:
The device is divided into distinct functional components: the threaded spindle for positioning, the sliding jaw for force application, and the lever mechanism for adjustment. This segmentation allows each component to perform its specific function while maintaining overall structural simplicity and operational ease.
3Ease of operation
If manual manipulation of the peeling knife is enabled, then ease of operation is improved, but control precision over peeling force may be reduced
Solution Approach 1:
The lever mechanism provides mechanical feedback to the operator, allowing manual manipulation of the peeling knife while maintaining control precision. The lever's mechanical properties ensure that the cutting depth remains consistent by providing resistance and control during the manual peeling operation.
Solution Approach 2:
The sliding jaw acts as an intermediary between the operator's manual manipulation and the peeling knife. It transmits and controls the force applied by the operator, ensuring that the cutting depth remains consistent and controlled even during 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 effectively applies a consistent peeling force, allowing for precise control over the peeling process, ensuring a constant and adjustable cutting depth, which is essential for efficient removal of the barrier or oxide layer on plastic pipes before welding or gluing.
Implementation Method 1
a threaded spindle protruding from it and connected to the housing, on the threaded spindle facing away from the housing end of which a mandrel can be screwed, into which the threaded spindle is screwed when it rotates, taking the housing with it
Implementation Method 2
the sliding jaw can be pivoted in the direction of the threaded spindle by means of a lever mechanism and locked via this lever mechanism, so that the peeling knife can be brought into a predetermined position with respect to the threaded spindle and the mandrel
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The invention relates to a stripping unit for machining plastic pipes or pipes which are coated with plastic and covered with a barrier layer or oxide layer, in particular in order to weld or adhesively bond two such pipes to one another, or for machining pipes having plastic fittings, sleeves or the like, in order to remove the barrier layer or oxide layer on the outer surface of the plastic pipe transversely or substantially transversely to the longitudinal axis thereof by orbital cutting prior to the welding process. The stripping unit substantially comprises a housing (2) with a threaded spindle (3) which projects out of, and is fixedly connected to, the housing (2), it being possible for a clamping mandrel (4), into which the threaded spindle (3) is screwed upon rotation with driving of the housing (2), to be screwed onto that end of the threaded spindle (3) which is remote from the housing (2), wherein an arm-shaped sliding block (5) is arranged in parallel with the threaded spindle (3) and is likewise held at one end in the housing (2) and bears, at the opposite free end thereof, a stripping blade (21) which projects into the region of that end of the clamping mandrel (4) which holds the threaded spindle (3). The sliding block (5) can be pivoted and locked by means of a lever mechanism, such that the stripping blade (21) can be moved into a predefinable position with respect to the clamping mandrel (4) and be releasably locked, in order to apply a defined or adjustable pressing force of the stripping blade (21) to a pipe (25) to be stripped.