Machines for die-cutting cardboard in the carton forming process. Generally divided into two types of die-cutting flat, round die-cutting. The die-cutting process, as the outer packaging is not only used for transportation, but also used to attract consumers’ purchase needs, its market share has also increased accordingly. Whether it is a flat die-cutting machine or a round die-cutting machine, peripheral equipment is needed, such as a pre-feeder, a cardboard stacking separator, a stacking machine and a cardboard bundle processing device. Maximum productivity.
Round die-cutting machine The working parts of both the platen and the cutting mechanism of the round die-cutting machine are cylindrical. During operation, the paper feed roller sends the cardboard to the die platen and the pressure roller, which is clamped by the two. Hold the die cutting of the roller, and the die cutting plate roller rotates once, which is a working cycle. The die-cutting methods of round die-cutting machines are generally divided into two types: hard cutting and soft cutting. The hard cutting method refers to the hard contact between the knife and the surface of the pressure roller during die cutting, so the die cutting knife is easier to wear. The soft cutting method is to cover the surface of the pressure roller with a layer of engineering plastic. During die cutting, the cutter can have a certain amount of penetration. This can protect the cutter and ensure complete cutting. However, the plastic layer needs to be replaced regularly. Because the roller is continuously rotating when the circular die cutting machine is in operation, its production efficiency is the highest among all types of die cutting machines. However, the die-cut version must be curved into a curved surface, which is relatively cumbersome and costly. It is technically difficult. Therefore, round die-cutting machines are often used for mass production. At present, most advanced die-cutting equipments are developed towards the fully automatic combination of printing and die-cutting. The production line of die-cutting machinery and printing machinery consists of four main parts, namely the feeding part printing part, die-cutting part, and sending-out part. Wait. The feeding part intermittently inputs the cardboard to the printing part, and it can be easily and accurately adjusted according to different material forms, sizes, types, etc. The printing part can be composed of 4 color to 8 color printing units. Different methods such as gravure, offset, and flexographic printing can be used. This part has more advanced printing functions and is equipped with its own automatic drying system. The die-cutting part can be a flat die-cutting die-cutting machine or a round die-cutting die-cutting machine, and both are equipped with a waste cleaning device, which can automatically remove the corner waste generated after die cutting. The conveying part collects and sorts out the products after the die-cutting process is completed, so as to ensure that the printing part and die-cutting part of the feeding part can smoothly realize high-speed continuous operation.
Round die-cutting machine The round die-cutting machine is mainly composed of a flat plate plate for reciprocating motion and a rotating cylindrical pressure roller. During the working stroke, the platen moves forward to die-cut and indent the cardboard; when returning to the stroke, the platen returns backward, and the working surface of the pressure roller does not contact the die-cut plate. According to the different rotation conditions of the pressure roller in a working cycle, this type of die-cutting machine can be divided into stop rotation, one rotation, two rotation and so on. Both can be work trips.
Flat die cutting machine The shape of the platen and the cutting mechanism of this die-cutting machine are flat. When the plane of the platen and the platen is in the vertical position, it is a vertical flattening die-cutting machine. When the die-cutting machine is working, the platen presses the platen through the drive to apply pressure to the platen. The pressing trajectory of the pressing plate can be divided into two types: one is that the pressing plate swings around the fixed hinge, so at the moment when the pressing starts, there is a certain inclination between the working surface of the pressing plate and the stencil surface, so that the die cutting plate is cut into the lower part of the cardboard earlier This can easily cause the phenomenon that the lower pressure of the die plate is too heavy and the upper part is not completely cut through. In addition, the component force of the die-cutting pressure can cause lateral displacement of the board. When another die-cutting machine die-cutting machine is working, driven by the connecting rod, the die-plate first uses a cylindrical roller as a fulcrum and swings on the flat guide rail of the machine base. When in the parallel position, press it in parallel to the die-cut plate. Vertical flat-bed flat die press has the advantages of simple structure, convenient maintenance, easy to master its operation and replacement of die-cut indentation plate, etc., but the labor intensity is large, the production efficiency is low, and the number of working times per minute is 20-30 times. Commonly used in small batch production. The platen and platen working surface of the horizontal flattening die-cutting machine are in a horizontal position, and the lower platen is driven upward by the mechanism to press the platen to perform die-cutting indentation. Because the stroke of the horizontal die cutting machine is small, it is difficult to manually put in or take out the cardboard. Therefore, it usually has an automatic paper feeding system. Its overall structure is similar to that of a sheet-fed offset printing machine. The input system, die cutting part, cardboard output part, electrical control, mechanical transmission and other parts, and some also have automatic cleaning devices. Horizontal flat die cutting machine works safely and reliably, with high degree of automation and production efficiency. It is an advanced model of flat die cutting machine.