The working process of the coating machine: the roll of substrates, such as paper, cloth, leather, aluminum foil, plastic film, etc., coated with a layer of special function glue, paint or ink, etc., and then rewind after drying.
The working principle of the automatic coating machine: the working principle of the automatic coating machine used for screen printing is the same, but its performance varies according to different models and different manufacturers. The screen coating machine is provided with a device capable of clamping the screen frame on the vertical frame. The front and back of the screen area is a horizontal coating mechanism. This coating mechanism consists of a coating tank and mechanical or pneumatic components that control the angle and pressure of the coating tank.
The two ends of the coating mechanism are installed on the vertical support arm of the coating machine, and the coating mechanism is moved up and down by the transmission of a belt, a chain or a cable, and the coating is applied along the surface of the wire mesh. The transmission mechanism is connected to the servo or frequency conversion motor, which makes the operation stable and can accurately control the position of the coating mechanism.
Before coating, the clean, stretched screen is loaded from the front of the coating machine, and some models can also be loaded from the side. In models designed for large-format screen frames, side mounting is more common, because the screen frame is large and cumbersome, and side mounting can reduce the amount of lifting and moving. When the automatic screen coating machine is online with other automatic screen processing equipment (such as cleaning equipment, regeneration equipment, drying device and developing machine), it is more convenient to install the plate from the side.
No matter how the screen is installed, once the screen is in the correct position, the pneumatic clamping device or mechanical clamping device is closed to lock the screen. In order to make the operation more convenient, many models have a foot pedal to control the movement of the clip, and the operator can free up his hands to control the screen. After installing the screen, filling the automatic coating machine with the corresponding photosensitive emulsion, you can start coating. According to the functions of the control system and the equipment, the equipment can coat both sides of the screen at the same time.
There are two coating methods, one is to apply the photosensitive emulsion on the screen through multiple wet pressing operations; or to add a drying process after each coating. A machine for quantitatively coating liquid (or melt) polymer materials such as adhesives or paints on the surface of materials.
Suitable for the production of soft substrates such as PVC / Pe Film
Simply put, the glue is applied to the film. Specific include glue control, drying, winding and tension control.
The film can be PVC, PE, PET ... or some paper, for example, coated with hot melt adhesive on the release paper
The coating machine is designed and manufactured in order to meet the packaging requirements of containerized storage, transportation and mechanized loading and unloading operations. It is widely used in foreign trade exports, food and beverage, irrigation, papermaking, dyes, plastic chemicals, glass ceramics, electromechanical castings and other products, to improve production efficiency, but also to prevent damage to the goods during the handling process, and to prevent dust , Moisture proof and cleaning effect.
The working principle of the coating machine is to place the wrapped object in the center of the turntable, start the turntable motor to rotate, and naturally drive the turntable to rotate, so that the object realizes the peripheral film winding machine. At the same time, the elevator motor also starts, driving the entire assembly of the winding and strapping machine to move up and down to achieve the winding of the object in the height direction, which realizes the wrapping of the entire appearance of the object. This not only facilitates the packaging requirements for cargo storage, transportation and mechanized loading and unloading operations, but also prevents damage to the cargo during handling, plays a role in dust, moisture and cleaning, but also reduces production costs and improves production efficiency. The main thing in the winding process is the adjustment of the film tension and the film penetration. Generally, the film tension can be achieved by adjusting the rotation speed of the turntable and the speed of the motor. As long as the rotation speed of the turntable is faster, the slower the motor rotates, the tighter the membrane will be, and the looser the principle, the easier it is to operate.
U Shape Paper Corner Protector is a Paper Corner Protector with U shape. It is made of raw paper or recycled paper through a series of production processes. Its rigid cardboard support protects the angular carton to prevent the goods from being transported. The damage caused by the uncertain factors of the process, thus ensuring the integrity, brand new and functional performance of the product. Our products are sturdy and reliable, moisture-proof and moisture-proof, effective and alleviate the impact, greatly improving the overall packaging efficiency of the goods.
Use reliable paper corners !
U Shape Paper Corner Protector
Edge Board,Pallet Edge Protector,Pallet Corner Protectors,Corner Guards And Profiles
Shenzhen Chengxing Packing & Material Co.,Ltd , https://www.cxpack.com