Full-automatic coating machine

Abstract

The invention provides a full-automatic coating machine. The full-automatic coating machine comprises an uncoiling device, a coating device mounted behind the uncoiling device, an oven mounted behindthe coating device, a traction device mounted behind the oven, and a coiling device mounted behind the traction device. The uncoiling device in the coating machine is reasonable in structure arrangement; a frame is totally adjusted in a moving mode to achieve high adaptability; and through arrangement of multiple adjustable guide rollers and tensioning rollers, the coiling / uncoiling effect is excellent. The coating device in the coating machine is reasonable in structural design, not easy to generate precipitations in a trough, high in loading uniformity and easy to control a gap between a coating roller and a transfer glue roller. The traction device of the coating machine is provided with a feed adjusting mechanism to achieve excellent rectifying and tension adjusting effects; and through cooperation between a first tensioning adjustment mechanism and a second tensioning adjustment mechanism, the precise tension adjustment of a coating basal body in the traction conveying process canbe realized.

Description

technical field [0001] The invention relates to a coating device, in particular to a fully automatic coating machine. Background technique [0002] The coating machine is mainly used for the surface coating process production of film, paper, etc. This machine is to coat the rolled substrate with a layer of glue, paint or ink with specific functions, and then wind it up after drying. The coating machine is generally composed of an unwinding device, a coating device, a drying device, a traction device and a winding device. However, the coating machine is a whole with a complex structure. How to realize the good cooperation between various devices is an urgent problem in the coating field. The existing coating equipment mainly has the following technical problems: (1) The winding / unwinding mechanism of a conventional coating machine is generally driven by a drive motor to directly drive the winding / unwinding roller to rotate and roll the coated coil on the winding / unwinding me...

AI Technical Summary

Problems solved by technology

However, the coating machine is a whole with a complex structure. How to realize the good cooperation between various devices is a problem that needs to be solved urgently in the coating field.

The existing coating equipment mainly has the following technical problems: (1) The winding / unwinding mechanism of a conventional coating machine is generally driven by a drive motor to directly drive the winding / unwinding roller to rotate and roll the coated coil on the winding / unwinding mechanism. On the roller, the winding / unwinding speed of this kind of winding / unwinding mechanism is controlled by the drive motor, so its winding / unwinding stability is not high, and the ordinary winding / unwinding roller has no tensioning function, which is easy to cause Problems such as over-tightening of the coil or inadequate winding, etc.; thus the diameter of the reel after winding is limited, so that the length of the coil at one time is short, reducing the efficiency of winding and increasing the cost of winding

(2) The lack of agitation in the coating tank during the coating process will easily lead to sediment in the material tank, which will affect the coating uniformity. The feeding of the coating is realized by the coating roller, but the coating amount is not easy to control, and the coating accuracy is poor. When the transfer coater performs gap coating, the coating steel roller is separated from the transfer rubber roller. Since the coating steel roller is fixed, the transfer rubber roller will move relative to the coating steel roller in the X-axis direction to form a gap. , so as to achieve the purpose of the coating gap. At the moment when the coating steel roller is separated from the transfer rubber roller, due to the instantaneous movement of the transfer rubber roller, although the substrate passes through the guide roller, the substrate coated on the transfer rubber roller will still appear loose. In some cases, the substrate will slip relative to the transfer rubber roller

(3) Rewinding is required after drying, but due to the high temperature after drying, if rewinding is performed without traction and cooling, the tension of the coated substrate and coating will be unstable due to thermal expansion and contraction , resulting in wrinkles, cracks, etc.

The existing traction equipment generally only plays a transitional role. During the transitional process, it is difficult to control the tension, and it is easy to shift during the transmission process, which makes the subsequent winding work difficult to control.

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