With the development of society and the continuous changes in consumer demand, metal shopping carts have gradually become common equipment in modern commercial facilities. This article will explore the manufacturing process of metal shopping carts and analyze how to improve production efficiency and product quality through these advanced technologies.
ⅠDesign and material selection of metal shopping carts
Before discussing the production process of metal shopping carts, it is first necessary to understand the design requirements and selection of common materials for metal shopping carts.
The main material of metal shopping carts is generally steel, especially cold-rolled steel or stainless steel. In addition, some shopping carts also use plastic or rubber materials for handlebars and storage baskets to reduce weight and increase comfort.
Ⅱ Manufacturing process of metal shopping carts
The manufacturing process of metal shopping carts involves multiple links, among which laser tube cutting machines, laser welding machines, tube bending machines and other equipment play a vital role. These modern production equipment not only improves manufacturing efficiency, but also ensures the quality and precision of products.
2.1 Application of laser tube cutting machines
Laser tube cutting machines use high-power laser beams to focus on the surface of metal pipes, melt or vaporize the metal through heat energy, and the cutting head moves along a predetermined path to cut the required shape. In order to ensure the cutting quality, the laser tube cutting machine is also equipped with an automatic tracking system that can automatically adjust the focal length to adapt to pipes of different diameters and thicknesses.
Laser tube cutting machines are one of the indispensable equipment in the production process of metal shopping carts, especially in the manufacture of frame structures. Laser tube cutting machines can efficiently and accurately cut metal pipes of various specifications. Laser tube cutting technology has many advantages over traditional mechanical cutting methods:
1. High-precision cutting: Laser tube cutting machines can accurately cut metal pipes through the high-temperature melting or vaporization of laser beams.
2. Automated operation: Laser tube cutting machines are usually equipped with automatic loading and unloading systems, which can greatly improve production efficiency and reduce manual intervention.
3. Complex graphic cutting: Laser tube cutting machines can cut various complex shapes of metal tubes according to design drawings, such as bending, punching, etc., to meet the special design requirements of shopping cart frames.
4. High material utilization: The heat-affected zone during laser cutting is very small, so it can minimize material waste and reduce production costs.
2.2 Application of laser welding machine
The laser welding machine generates a high-energy laser beam and focuses the laser energy on the welding part. When the laser beam irradiates the metal surface, the local area is quickly heated to the melting point. After the metal melts, a weld pool is formed. As the laser beam moves, the weld pool solidifies to form a strong weld joint.
In the production of metal shopping carts, laser welding machines are mainly used to connect the various components of the frame. Especially in structural welding, laser welding technology provides high-quality weld joints. Compared with traditional welding methods, laser welding has the following advantages:
1. High welding accuracy: The laser beam can be precisely focused on the joint to achieve high-precision welding, smooth and neat welds, and almost no post-processing is required.
2. Small thermal impact: During laser welding, the heat input is very concentrated, the heat-affected zone is small, and metal deformation and residual stress are reduced.
3. Fast welding speed: The welding speed of the laser welding machine is very fast, which can greatly improve production efficiency, especially in large-scale production.
4. Strong adaptability: Laser welding is suitable for a variety of metal materials, especially when welding thin-walled materials, it can achieve ideal results.
2.3 Application of pipe bending machine
In the production process of metal shopping carts, some parts of the frame need to be bent, and the pipe bending machine is the key equipment to complete this task. The pipe bending machine can accurately control the bending angle and radius to ensure that the shape of each pipe is consistent with the design requirements. Pipe bending technology is crucial to the production of shopping carts, especially in terms of the structural strength and stability of the frame part. Reasonable bending angles and bending methods can enhance the frame's ability to resist compression and torsion.
Working principle of pipe bending machine
The pipe bending machine uses a hydraulic or electric drive system to make the pipe bending mold and the pipe move relative to each other.
After the pipe is placed in the mold, it is bent by heating or cold bending. The CNC system of the pipe bending machine can accurately control the bending angle, radius and position to ensure that each pipe meets the design requirements.
According to different bending requirements, the pipe bending machine can also perform various forms of bending, such as single bending, multi-point bending, etc.
Ⅲ Post-processing and assembly of metal shopping carts
Although laser tube cutting, laser welding and pipe bending technology make the manufacturing process of metal shopping carts more efficient and precise, after these key steps are completed, a series of post-processing and assembly work is still required to ensure the quality of the final product.
3.1 Surface treatment
In order to increase the durability and aesthetics of metal shopping carts, surface treatment is a necessary link. Common surface treatment methods include: spraying and baking paint, galvanizing, stainless steel polishing
3.2 Assembly and quality inspection
After all parts are manufactured, the frame, handlebars, wheels and other parts will be fixed by screws, welding and other methods. After assembly, each shopping cart needs to undergo strict quality inspection to ensure that its performance meets the standards.
In short, the production process of metal shopping cart frames is a process that requires the comprehensive use of a variety of process equipment and technical means.