Aurora 70 - User Manual

This document describes a Model 70 Round Knife Cutter, an industrial cutting machine designed for efficiency and versatility in various manufacturing settings. The machine is specifically engineered for cutting fabrics and materials commonly used in the production of clothes, shoes, hats, ties, and umbrellas. Its design emphasizes quick cutting speed, portability, and flexibility, making it a valuable tool for enterprises requiring precise and efficient material processing. The overall structure of the machine is designed to be reasonable, ensuring all necessary functions are readily available and user-friendly.

Function Description

The primary function of the Model 70 Round Knife Cutter is to provide a fast and precise method for cutting various materials. At its core, the machine utilizes a round knife blade that rotates at a high speed to achieve clean and efficient cuts. This round knife design is particularly effective for cutting multiple layers of fabric simultaneously, which significantly boosts productivity in industrial environments. The machine is equipped with an abrasive wheel system that automatically sharpens the blade, ensuring it remains keen and effective throughout operation. This self-sharpening feature is crucial for maintaining cutting quality and extending the life of the blade.

The cutting process is initiated by activating the electric scissors, which then engages the abrasive stick (B3-1) against the abrasive wheel (B7). This action mills the blade automatically, keeping it sharp. If the abrasive wheel accumulates excessive greasy dirt, it needs to be cleaned or replaced to ensure optimal sharpening performance. Blade loading and unloading are straightforward: the blade is rotated to align with the abrasive wheel hole, and a cylindrical pin is inserted. A flat hand tool (appendix) is then used to either revolve out or compress the blade hat (B22) for removal or securement. For replacing other parts, users should follow the sequence outlined in the three-dimensional assembly drawing provided in the manual.

Usage Features

The Model 70 Round Knife Cutter is designed with several features to enhance its usability and ensure safe operation. Its portable and flexible nature allows it to be easily maneuvered and used in various workstations, adapting to different production layouts. The machine's reasonable structure ensures that all controls and components are easily accessible and intuitive to operate.

One of the key usage features is the integrated sharpening mechanism. This allows operators to maintain blade sharpness on-demand, without needing to remove the blade or use external sharpening tools. This not only saves time but also ensures consistent cutting performance. The ease of blade replacement is another significant advantage. The design allows for quick and simple changes, minimizing downtime when a blade needs to be swapped out due to wear or damage.

For safety, the manual emphasizes several critical points. Operators must ensure that the operating voltage is normal and that the machine is properly grounded to prevent electrical shock. It is strictly forbidden to touch the high-speed moving blade with fingers or any other body part during operation. When loading or unloading parts, the power plug must always be disconnected to prevent accidental activation. Additionally, blocking the fanlight (ventilation opening) is prohibited, as this could lead to overheating and damage to the machine.

Maintenance Features

Proper maintenance is crucial for the longevity and optimal performance of the Model 70 Round Knife Cutter. The manual outlines several key maintenance points to guide users in keeping the machine in excellent working condition.

The abrasive wheel (B7) requires regular attention. If it accumulates excessive greasy dirt, it must be cleaned and replaced promptly. This ensures that the blade milling process remains effective, keeping the blade sharp and reducing the strain on the electric motor. Regular cleaning of fine dirt is also essential. Dirt and debris behind the blade and within the electric machine should be cleaned to prevent damage to internal components.

Lubrication is another critical aspect of maintenance. The worm wheel, a vital component for the machine's movement, needs regular lubrication. When the electric scissors are in normal use, grease should be applied to the oil cup (B9) and staked into the abrasive wheel two to three times a month. The blade itself also requires lubrication. Before each use, 30# oil should be applied to the lubricative cotton (W28) to reduce friction between the small blade and the blade below it, ensuring smooth operation and preventing premature wear.

The electric brush (W54) is a wear-and-tear component that needs periodic inspection and replacement. After extended periods of operation, if the electric brush is damaged by half, it should be replaced. It is imperative to disconnect the power supply before changing the electric brush. If the electric motor operates abnormally, the machine should be stopped immediately to check if the electric brush is functioning correctly.

The manual also addresses common issues that can lead to difficulties in cutting, such as cloth blocking or hard cutting. These issues can arise if the lower blade (B24) or the main blade (B21) has a breach or damage, or if the position, angle, and elasticity between the blade and lower blade are incorrect. In such cases, the blades may need to be replaced, or the lower blade may need adjustment to ensure it leans against the main blade at the minimum angle with suitable elasticity. If the abrasive wheel is greasy, cleaning it and then starting the mill blade can resolve cutting issues.

In summary, the Model 70 Round Knife Cutter is a robust industrial tool designed for efficient fabric cutting, featuring an integrated sharpening system, easy blade replacement, and clear maintenance guidelines to ensure its reliable and safe operation in various manufacturing environments.