Custom Home Task Chair Manufacturers

What kind of process is used to accurately achieve the ergonomic curve of the back of the Home Office Task Chair in the actual production process?

In the contemporary home office environment, people's average daily working hours are increasing. Relevant survey data show that more than 60% of people working from home work more than 8 hours a day. In this context, ergonomically designed office chairs have become an important equipment to protect the health of users' spines and improve work comfort. The ergonomic curve design of the back of the chair is the core element of the office chair. Its design accuracy directly affects the support effect on the cervical spine, thoracic spine, lumbar spine and other parts, and is related to whether it can effectively disperse body pressure and relieve long-term sitting fatigue. From design conception to production implementation, all aspects play a decisive role in the quality of the final product. ​
The professional team has carried out a lot of work, not only referring to the internationally accepted ergonomic standards, but also collecting sitting posture data of users in different regions, age groups and body types through extensive actual surveys. In view of the body characteristics of the Asian population, their sitting habits and back curve morphology data in daily office scenes are specially collected. After the data collection is completed, computer-aided design software is used for processing. The R&D personnel input the data into the software, and through multiple simulations and adjustments, optimize the curvature, angle and support strength of each part of the curve to ensure that the constructed ergonomic curve model of the chair back meets the physiological curvature of the human spine. Taking the design of the cervical spine as an example, after repeated debugging, the appropriate tilt angle is determined to ensure that the head can get effective support when leaning back without causing excessive stretching of the neck. ​
After the design plan is determined, mold development becomes a key link. High-precision CNC machining centers play an important role in mold manufacturing. The technicians strictly follow the design drawings to carry out fine processing of the mold. For the mold surface part, the electric spark machining process is used. Through the pulse discharge between the electrode and the mold, the mold material is accurately removed, so that the mold surface is highly consistent with the design curve, achieving micron-level accuracy. In terms of mold material selection, Lubote Plastic Technology uses high-strength, high-wear-resistant high-quality steel. The mold is made of special alloy steel, which has good hardness and toughness after a special heat treatment process. It can withstand tens of tons of pressure during the injection molding process and maintain a stable shape during long-term use, ensuring that the produced chair back parts meet the design requirements.​
Injection molding is the core process of converting plastic materials into chair back parts. Advanced injection molding equipment has precise temperature, pressure and speed control functions. Taking Lubote Plastic Technology as an example, environmentally friendly biodegradable plastic PA or PP raw materials are used in the production process. These raw materials need to be heated to a specific temperature range to achieve the best melting state. Too high a temperature will cause the plastic to decompose and affect the performance, and too low a temperature will make the plastic insufficiently fluid and unable to fill the mold cavity. When the raw materials reach the right state, the injection molding machine screw injects the plastic into the mold cavity with precise pressure and speed, and then the cooling system in the mold quickly shapes the plastic through circulating cooling water. The production team strictly controls parameters such as injection molding temperature, holding time, and cooling time.
The chair back parts after injection molding need to be post-processed. Deburring and grinding processes use professional tools to remove the flash and uneven parts of the surface of the parts caused by injection molding. For complex curved parts, special grinding equipment and processes are used to ensure a smooth surface and avoid damage to the user's skin. In terms of surface treatment, Lubote Plastic Technology uses different processes according to product positioning and user needs. The high-end series of office chairs use vacuum coating technology to form a metal film on the surface of the chair back to improve the aesthetics, wear resistance and corrosion resistance; environmentally friendly products use water-based spraying technology and environmentally friendly paint to ensure color while reducing environmental pollution. When bonding environmentally friendly leather, the plastic chair back parts are first polished, cleaned and coated with adhesive to enhance surface adhesion, and then the leather is bonded with precise pressure and temperature through professional bonding equipment to ensure tight bonding without bubbles and wrinkles, thereby improving the touch and durability of the product. ​
Quality inspection is an important part of ensuring product quality, and Lubote Plastic Technology has established a complete inspection system. In terms of dimensional accuracy inspection, a high-precision three-dimensional coordinate measuring instrument is used to perform three-dimensional scanning and measurement of the chair back curve shape and size, and compared with the design model data. Parts that exceed the allowable error range are judged as unqualified. Physical performance testing uses tensile tests, compression tests, impact tests, etc. to test the strength, toughness, wear resistance and other performance indicators of the chair back parts. For example, in the tensile test, the chair back parts are fixed on the stretching machine to apply tension to test their maximum bearing capacity to ensure that they will not break during use. Environmental performance testing uses professional equipment to test the biodegradability of plastic raw materials, the VOC content of foam, and the harmful substance content of leather. Taking foam materials as an example, professional instruments are used to accurately measure the VOC content to ensure compliance with national environmental protection standards and provide users with healthy and safe products. Only chair back parts that pass all test items can enter the assembly process. ​
The assembly process is a key step in forming a complete product. In the production workshop of Lubote Plastic Technology, 50 skilled workers strictly follow the process flow to accurately assemble qualified chair back parts with nylon bases, armrests, casters, gas struts, metal chassis and other parts. When connecting the chair back to the metal chassis, high-strength screws and connectors are used, and the tightening torque of the screws is controlled by professional tightening equipment. Technicians accurately set the tightening torque value according to the materials and stress conditions of different components to ensure that the connection is firm and the components are not damaged. When assembling the armrests, workers carefully adjust their height, angle and tightness to ensure that users get comfortable support. After each chair is assembled, workers will conduct an overall inspection to ensure that the components are tightly connected, function normally, and have no defects in appearance.​
Before the assembled home office task chair leaves the factory, it is also necessary to undergo a simulated use test. By simulating the frequent lifting, rotating, and reclining movements of users in daily office scenes, the stability and durability of the various components of the chair are tested. Only office chairs that have passed rigorous testing and meet all indicators can eventually enter the market and provide users with a comfortable, healthy, and lasting office experience.