It is made of industrial profiles and is directly driven by the drive motor. It is the key to the stable movement of the whole telescopic mechanism. The door frame is provided with a switch button and a travel switch to automatically control the expansion and contraction of the door

Apart from the door frame, the rest parts are canvas support net, which is the framework for installation and connection of flame-retardant canvas. It is composed of multiple groups of profile skeleton, and the whole relatively independent skeleton is connected together through a scissors type expansion mechanism to form a stable whole

The two canvas support nets are connected by a scissor type telescopic mechanism, whose structural size determines the amount of expansion and contraction. At the same time, a set of scissor type telescopic mechanism is arranged at the upper and lower sides of each side to ensure that the upper and lower sides can achieve expansion and contraction at the same time, and a synchronous motion mechanism is formed between the two through a connecting rod

Industrial flame-retardant PVC canvas is used between the entire grid, which is the "wall panel" that forms a relatively closed operation room and also the "room" that ensures the orderly flow of air. During installation, one piece of industrial canvas is used for every two support nets

The drive part adopts a reduction motor, which is transmitted to multiple long shafts, and then is synchronously transmitted to the driving wheels on both sides by the sprockets at both ends of the long shaft. The whole drive adopts three-level protection for forward and backward: two-way two-level travel protection, and the rail terminal is set with limit stops; There are control boxes on both sides of the door post, which is easy to operate; A running warning light is set on the top of the spray chamber. The reducer adopts K series of Dongfang transmission: helical gear - spiral bevel gear reducer

The synthetic fiber filter material product vnf-290 (G3) and the bag filter of the filter section of the air supply system can increase the cotton area of the air inlet by 3-4 times with the cloth bag structure. The adoption of this filter form can reduce the wind resistance, increase the dust capacity and reduce the replacement times

The Dutch "arresters" synthetic fiber filter material cc-600g (F5) is selected as the sub high efficiency filter material, which can filter out all particles that can damage the paint quality, and the dust content is 100% removed to ensure that the air flow passing through the paint booth is evenly diffused and forms a laminar flow state, which conforms to the fire classification standards of European din53438-f1 and American ul900-class1.

lighting

The upper and lower rows of lighting devices are set indoors. The top side lamp group is installed at a 45 º angle, and the arrangement is: 2 × 40W × 2 sides; The waist lamp group is installed in the wall panel at intervals, and the arrangement is: 2 × 40W × 2 lines. All light boxes adopt δ 1.2 the galvanized plate shall be made and sprayed with white paint, which is beautiful and generous, and can prevent the appearance of rust. The lamp tube adopts explosion-proof Philips high-efficiency light source, which is safe, energy-saving and easy to maintain. The ballast adopts the special electronic ballast for the spray booth, so as to ensure that the light intensity of each spray booth is ≥ 800Lux and meet the spraying operation of each end face of the workpiece. The light box and the wall panel are connected by small angle iron, and the light box is equipped with a detachable frame for easy maintenance.

Safety alarm system

To ensure safe use, the chamber is equipped with drb-105 dual controller dual detector combustible gas concentration detection device. When the solvent concentration reaches 25% of the explosion limit (which can be freely set), the alarm will be given immediately; Telescopic room operation warning and fault alarm shall be set at the top of the spray chamber

Electronic control system

The components of the electronic control system of the retractable pump less water curtain painting room shall be well-known brands such as Omron, Siemens and Schneider. The main circuit shall be provided with protection functions such as overcurrent, overload, short circuit and short circuit to ensure high reliability and low failure rate of the electrical control system. The line design is reasonable, with short-circuit protection, overload protection and other functions and reliable grounding protection system. PLC programming can control the whole equipment. The distribution control cabinet in the system is sprayed with plastic on the surface, which is beautiful and generous. In order to ensure the sequence and safety of the work, the interlocking of the lower workpiece to the painting is adopted. Any door of the spray booth shall be equipped with operation warning light and emergency stop button, and the door shall be interlocked with the spray gun. When the warning light is on during painting, the painting system will automatically stop if any door is opened intentionally or unintentionally. Emergency stop switch shall be set in the control cabinet and painting room.