Hotel Furniture —— How to make high-quality hotel sofas?

Three factors affecting the quality of sofa-structure, filler and fabric.

1. Structural design: The most important thing in structural design is to conform to the principles of ergonomics, so that people sitting can achieve the most comfortable, healthy and reasonable sitting posture. Secondly, because the sofa is used frequently for a long time and bears the human load, the structural design must be stable and firm to ensure the safety during use.

2. Structural technology: The structural technology of sofa can be roughly divided into three types.

A. Process material requirements of solid wood tenon-mortise connection structure: hard solid wood, and strictly dry. Process characteristics: firmness, good stability, environmental protection and high cost. Because wood is difficult to dry, it is easy to produce deformation and quality problems, and there are almost no sofas with this technology in the market.

B. Structural technology of wood nail board: material requirements: multi-layer composite board such as birch, poplar and pine (12 cm or 15 cm board). Connection mode: nailing technology features: not easy to deform, good strength, simple production, high production efficiency and low cost, but it is not conducive to environmental protection because of the use of wood-based panels. The firmness is general, and it is a widely used process structure at present.

C. All-steel welded structure: material requirements: ordinary standard steel pipe connection mode: welding process characteristics: good structural stability, high strength and good environmental protection, but high manufacturing process requirements and high cost. At present, high-grade sofas used in Europe should be the upgrading direction of sofas in the future.

What does the population involve:

1. Types of fillers There are three main types of fillers for sofas: a. Soft polyurethane foam (commonly known as sponge) Sponges used for sofa filling are mainly divided into three types. Conventional sponge is a kind of sponge produced by conventional polyether and TDI. It is characterized by good resilience, softness and good air permeability. High resilience sponge is a kind of sponge with active polyphosphate and TDI as main raw materials, which has excellent mechanical properties and good elasticity. High compression load, good flame retardancy and good air permeability. Random-hole sponge is a kind of sponge similar to natural seaweed, with different inner holes, which is characterized by good elasticity and excellent cushioning performance during compression and resilience. B. Down filler: As a sofa filler, down is comfortable to sit on and has little deformation after long-term use. The disadvantages are slow rebound and high cost. Generally, it is used with sponge in high-grade sofa, or it is suitable for cushion. C. Artificial cotton filler: As a sofa filler, artificial cotton has excellent softness and comfortable sitting feeling, but its mechanical properties are poor and its compression load is small, so it is only suitable for making cushions.

2. Filling structure design: the basic principle of filling structure design A. Make the sitting person feel comfortable. According to the sitting posture of the human body, there is no stress analysis: the human body structure has two ischial nodules under the pelvis. When people sit on a comfortable sitting surface, the sitting surface below the ischial tubercle is approximately horizontal, and the femur outside the two ischial tubercles is in a normal position, showing a bucket-shaped sitting surface, which will cause discomfort. Therefore, the cushion filling structure cannot be too soft or too hard. B ensure that the filler will not collapse and deform after long-term use. The service life of the filler depends on the properties of the filler itself and the bottom structure. For example, a sponge with high resilience is obviously better than a conventional sponge, and a sponge with high density is better than a sponge with low density. The national standard for general cushion sponge is 25KG/M3, and the international standard is 35KG/M3. Bottom structure, high elastic snake spring structure is better than bandage structure, and high quality bandage structure is better than inferior bandage structure. Under the above two principles, European high-end sofas generally adopt sandwich structure design.

3. What the fabric involves (fabric only)

The density of fabrics is related to the long-term mechanical wear life of sofa products, and the density of fabrics used in national standards is above 300D d.

3. Chinese sofa production technology should be standardized and modularized.

China's sofa manufacturing technology must be standardized and modularized, and the world furniture manufacturing center is shifting to China. China has stepped into the ranks of furniture manufacturing countries. However, the development of domestic sofa manufacturing industry is very slow, mainly manifested in the backward sofa manufacturing technology, the on-site production is mainly manual operation, and the product quality depends on the skills of workers. The sofa manufacturing industry urgently needs to improve the sofa manufacturing technology and improve the mechanization and automation of sofa production. Domestic sofa manufacturing enterprises need to develop in the direction of mechanization, standardization and even modularization.

Backward sofa production technology Traditional sofa production is generally divided into four processes: wood frame processing, sofa cushion processing, leather cutting and leather coating, surface painting and soft packaging. Traditional sofa production is basically manual operation, and product quality can only be mastered and controlled by the experience of operators. The product error is large and the production efficiency is low, which is only suitable for small-scale production. Problems in one link will affect the production progress of other links. Especially in the case of tight construction period, this problem is more serious. Therefore, the sofa manufacturing industry must develop in the direction of mechanization and standardization, establish industry standards, and ensure product quality to the greatest extent.

The premise of modular sofa production is to determine the basic elements of sofa through analysis and classification, establish standardized and serialized modules, and minimize the specifications and quantity of parts in production. In the design, it is necessary to change the situation that a sofa of one model is equipped with a set of components and cannot be interchanged one by one, so that the basic components and optional components are organically combined, the basic components remain unchanged and can be interchanged within a series, and the optional components change with the sofa model.

The premise of modular sofa production: first, to improve the specialization of sofa production. Modular sofa production needs to improve the specialization of sofa production, such as strengthening the development of hardware accessories. At present, the domestic sofa hardware is highly specialized, and modular production requires professional hardware factories to manufacture all kinds of hardware, such as connectors and fasteners, according to the various needs of sofa factories. In addition, the solid wood decorative pieces and exposed frames of sofas can be produced by professional factories, which is beneficial to improve the overall quality of sofa frames and the specialization of sofa factories.

Secondly, the parts and production technology of sofa products need to be standardized. At present, the standardization of production management of sofa production enterprises is a difficult problem faced by sofa enterprises. To achieve standardization, it is necessary to consider the induction and classification of parts, the convenience of mechanical mass production and the flow configuration management of various parts from the beginning of the structural design of sofas. For example, the dimensions of the support rods and triangular blocks selected for the sofa wooden frame should be unified and standardized as far as possible, so that the parts can be universal and interchangeable, and the relative standards of the sofa wooden frame should be unified. At present, some sofa manufacturers are trying to produce modular sofas. Components are more conducive to sofa production, assembly, storage and transportation, which is a breakthrough in sofa production. The standardization and modularization of sofa manufacturing should benefit from standardization and modularization. To realize the modularization of sofa manufacturing, firstly, the sofa design must be standardized, and the production process also needs to be standardized.

Using machinery instead of manual production of sofa can realize industrial production quickly and effectively. With the continuous development of sofa production industry and the continuous expansion of enterprise scale, some domestic sofa production enterprises have changed their concepts and started to change the traditional manual operation mode, and some have adopted mechanical equipment to assist production, which has obvious effects on the stability of processing quality, the improvement of production efficiency and the reduction of workers' labor intensity. In this way, the standardized design and production of sofas have been formed.

Modular design of sofa refers to the design method of dividing and designing a series of sofa functional modules on the basis of sofa function analysis, and forming different sofas through the selection and combination of functional modules to meet the diversified needs of the market.

Compared with traditional design methods, the modular design of sofa has many new features. The first is the design of the module and sofa product system, not only to design the module, but also to design the finished sofa. Secondly, it can quickly combine standardized and universal parts into a sofa, which can realize the diversification of sofas.

The difference between modular design and standardized design Modular design is different from standardized design, which brings a single product, but modular design is not. At the beginning of the design, the diversity of products that can be combined by modules was considered. Therefore, modular design is a method to realize product diversification on the basis of standardized design.

The modular design of sofa is carried out from the following three aspects: First, the overall modular design of sofa. This stage is mainly to carry out the overall planning of modular system and determine the scope of modular implementation. Good overall modular design is the basis of realizing modular design. Secondly, sofa module design is a concrete process of modular design system, which is a link between the preceding and the following. The modular design directly affects the final effect of modular sofa combination. Third, the sofa modular product design. This stage is mainly to select modules, evaluate the rationality of possible combinations of various modules, and then combine them into sofas according to the needs of consumers. It can be seen that the modular design of sofa is carried out from top to bottom, and the design of three links needs to be closely linked.

Designers need to eliminate unreasonable configuration forms and draw some commonly used sofa configuration diagrams according to the constraints of ergonomics on sofa size. Then the designer conducts market investigation and analysis, obtains information such as the market demand and development trend of sofas, further eliminates unnecessary configurations, and completes the configuration diagram that finally reflects the modular design scope.

Module design is the key in modular design, and the rationality of sofa module has great influence on the product performance, appearance, universality and processing cost of modular sofa. Module design includes three parts: functional analysis, module division and module design.

A module is a unit that can form a system with good reusability, complete interface and certain functions. Function is the basis of composing modules and furniture decomposition. Therefore, the functional analysis of sofa is the basic link of sofa modular design. Only on the basis of functional analysis, the sofa can be reasonably divided into modules.