Manual Shoe Peeling Strength Testing Machine: A Comprehensive Guide

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Manual Shoe Peeling Strength Testing Machine: A Comprehensive Guide

Manual Shoe Peeling Strength Testing Machine: A Comprehensive Guide

The Manual Shoe Peeling Strength Testing Machine is a specialized testing device designed to measure the adhesion strength between different layers of materials in footwear, such as the shoe sole and upper materials. The test provides valuable data on the durability of shoe construction, ensuring that shoes are built to last under various conditions, especially when subjected to repeated use or environmental stress.

In this blog, we’ll explore the definition, components, applications, test standards, operating procedures, and other relevant details about the Manual Shoe Peeling Strength Testing Machine.

What Is a Manual Shoe Peeling Strength Testing Machine?

A Manual Shoe Peeling Strength Testing Machine is a mechanical device that simulates the forces that shoes experience during wear, particularly the peeling or separation of the sole from the upper material. The machine measures the force required to peel apart the bonded layers of a shoe, helping manufacturers and quality control personnel assess the strength and integrity of the bonding materials used in footwear.

Unlike automated machines, manual testing machines require the operator to initiate and control the testing process, making them simpler and more cost-effective for smaller production runs or testing facilities with limited budgets.

Main Parts of the Manual Shoe Peeling Strength Testing Machine

Load Frame: The robust frame is designed to hold the shoe securely in place during testing. It typically has adjustable clamps or fixtures to accommodate shoes of various sizes and shapes.
Peeling Head: This part holds the peeling blade or tool, which is used to apply force to the area of the shoe where the sole is attached to the upper material. The head moves manually to simulate peeling.
Force Gauge: Attached to the frame or load cell, this component measures the force applied during the peeling process. It provides data on the strength of the bond between the sole and upper material.
Clamps: Used to securely hold the shoe in place while ensuring the sole and upper material are aligned correctly for the test. The clamps should be adjustable to accommodate different shoe sizes.
Peeling Blade or Tool: This tool is used to initiate the peeling action. It is typically made from durable materials, such as metal or hardened plastic, to withstand repeated use.
Handle: In manual models, the handle is used by the operator to move the peeling head and apply the necessary force. It allows for controlled and consistent movement during the test.
Display/Indicator: Some manual machines come with analog or digital indicators that show the force being applied. This provides a clear reading of the test results during the process.

Applications of the Manual Shoe Peeling Strength Testing Machine

The Manual Shoe Peeling Strength Testing Machine is widely used in the footwear industry for:

Footwear Manufacturing: To ensure that shoes are properly constructed and that the sole is securely bonded to the upper materials, preventing premature failure due to weak adhesion.
Quality Control and Inspection: To evaluate the quality of shoe production and to ensure that products meet industry standards for durability and safety.
Research and Development: In the development of new shoe materials or adhesive formulations, manufacturers use this test to validate the bonding strength of innovative materials or designs.
Material Testing: It helps in testing the adhesion strength of different types of shoe bonding materials, such as adhesives, glues, or heat bonding.
Compliance with Standards: Ensuring shoes comply with industry standards for safety and performance, especially in specialized footwear for sectors like sports, safety, or military applications.

Test Standards and Parameters

The Manual Shoe Peeling Strength Testing Machine generally follows specific standards to ensure consistency and accuracy in testing. Some of the most common standards include:

ASTM D413 – This standard describes the testing method for determining the peel strength of rubber and adhesive bonds in footwear, including sole adhesion.
ISO 17708 – A standard for testing the bonding strength of footwear, specifically related to the peel strength of the sole.
GB/T 23450 – The Chinese standard for testing the adhesion strength of footwear, particularly for shoes designed for industrial use.
EN 13594 – European standard for testing the performance and durability of protective footwear, including the bonding strength of soles to the upper part of the shoe.
JIS L 1907 – Japanese Industrial Standard for testing the performance of footwear, including the peel strength of materials used in shoe construction.

Key parameters tested include:

Peel Strength: The force required to separate the sole from the upper material, usually measured in Newtons (N) or pounds per inch (lb/in).
Peel Length: The distance over which the peeling force is applied. This is often standardized to a specific length for consistency.
Separation Force: The maximum force at which the sole and upper material begin to peel apart.

Operating Procedures

While the specific procedure may vary depending on the model of the manual testing machine, the general steps to operate a Manual Shoe Peeling Strength Testing Machine are as follows:

Prepare the Shoe Sample: Place the shoe sample in the machine, ensuring that the sole is properly aligned with the peeling blade. The shoe should be secured tightly in place using the machine's clamps or fixtures.
Set Test Parameters: If applicable, set the desired test parameters, such as force application rate or maximum force threshold, on the machine. Some models might allow for adjustable settings, while others may be fixed.
Initiate the Test: Using the manual handle or lever, apply force to the peeling head to start the test. Move the peeling head slowly to simulate the peeling action, allowing it to apply force gradually.
Monitor the Test: Observe the force gauge to ensure the test is proceeding smoothly. The operator should carefully monitor the test to avoid damaging the shoe or the machine.
Record Results: Once the test is complete and the sole is peeled off, record the force required to peel the sole. This is typically the maximum reading on the force gauge.
Repeat if Necessary: Multiple tests may be conducted on different samples for quality control or research purposes, or to verify consistency between different shoe designs or manufacturing batches.

Conclusion

The Manual Shoe Peeling Strength Testing Machine is a vital tool for ensuring the durability and quality of footwear products. By providing reliable and consistent results, it helps manufacturers identify weaknesses in the bonding of shoe soles and upper materials, preventing premature wear or failure. Adhering to global testing standards ensures that shoes meet industry requirements for safety and performance, making them fit for purpose in various applications.

Whether you're involved in footwear manufacturing, quality control, or material development, the Manual Shoe Peeling Strength Testing Machine is an essential piece of equipment that guarantees the integrity and reliability of your products.

If you are interested in acquiring a Manual Shoe Peeling Strength Testing Machine, feel free to reach out to Jinan Wangtebei Instrument and Equipment Co., Ltd. for more information on our high-quality testing solutions tailored to your needs.

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