Talking about: Overview of Folding Machine Structure
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The folding machine can be divided into a knife folding machine, a fence folding machine and a grid knife folding folding machine. The folding knife folding machine has both a knife folding machine and a fence folding machine. The structure, so take this model as an example to introduce the basic structure and performance of the folding machine.
The grid knife hybrid folding machine is mainly composed of a paper feeding mechanism, a fence folding mechanism, a folding knife folding mechanism, a delivery mechanism and an electric control system.
one. Paper feeding mechanism
The paper feeding mechanism is mainly divided into two types: a sheet-fed paper conveying device and a continuous paper feeding device.
The sheet-fed paper conveying device is the most widely used in China. The structure of the automatic lifting platform type paper feeder is divided into a paper separation system (Feida), a paper table lifting system and a paper feeding bridge system. The paper feeding mode of this structure has wide adaptability to the printing sheet, stable paper feeding, and the quantitative range of the printing sheet is 40~200g, and the floor space is small, but the disadvantage is that the printing sheet needs to be stopped after re-feeding and then work.
The continuous paper feeding device is also called a single-slewing paper feeding mechanism. This mechanism is equipped with a scale-type paper feeding feeder. The paper does not need to be stopped, which improves the working efficiency. The paper has a quantitative basis of 40-180 g, but this device accounts for The area is large and the adjustment is time consuming.
two. Fence folding mechanism
The fence folding mechanism is a mechanism for accomplishing folding by using a fence and a relatively running folding roller and a steering baffle, and is mainly composed of a folding roller and a folding fence, and has a manual stepless speed change device.
1. Folding roller
The folding roller is an important part of the folding machine. Whether it is a fence folding machine, a knife folding machine, or a hybrid folding machine, the folding roller is an essential core component, and the folding accuracy is mainly controlled by the folding roller precision. The higher the accuracy of the folding roller itself, the higher the folding accuracy. After the sheet is fed by the folding roller, it passes through the position of the paper feeding roller, where the paper can be punched, slit and indented.
2. Folding fence
The folding fence is also one of the main components on the folding machine, and its accuracy directly affects the folding accuracy. The folding roller drive gear, the rubber roller shaft seat and the needle roller bearing are the main components of the fence folding mechanism. To ensure the balance of the drive, most folding machines are driven by helical gears. The accuracy of the rubber roller seat can affect the parallelism of the adjacent two folding rollers, thereby affecting the folding accuracy. Most manufacturers use needle bearings to position the two ends of the folding roller. The needle bearing is characterized by rotational balance. The quality of the needle bearing can directly affect the folding accuracy. If the bearing at both ends of the folding shaft is unbalanced, the folding roller will inevitably jump and reduce the folding accuracy.
3. Continuously variable transmission
The continuously variable transmission is a device specially equipped for the adjustment of the size of the printed sheet by the mechanical knife folding machine. This device is mainly to adjust the relationship between the folding knife frequency and the folding roller speed to adapt to different web printing.
three. Folding knife folding mechanism
The folding knife folding mechanism presses the printing sheet into the middle of a pair of folding rollers which are relatively rotated by a folding knife, and then is fed out by the folding roller to complete a folding process. The folding knife folding mechanism is mainly composed of a folding knife and a folding roller, a folding roller cover plate and a rule member. The folding knife and folding roller are the main components of the structure. The straightness of the folding edge affects the lower drilling precision. The precision of the folding roller cover and the rule also directly or indirectly affects the folding accuracy of the folding knife.
The driving method of the folding knife folding mechanism is divided into mechanical driving and electronic driving. The mechanical drive is called a mechanical knife. The cam is used to drive the guide rod to reciprocate up and down along the fixed slide, and the folding knife is used to complete the folding. The electronic knife is driven by the electric component and the mechanically driven folding knife to complete the folding.