Jingde Brand 740E/660E Series Sheet-fed Multi-color Offset Printing Machine

Jingde brand 740E/660E series sheet-fed four-color offset printing machine

1. The main technical parameters

The printing speed of the machine should be based on the printer's ambient temperature, humidity, ink and paper used, and the required print quality.

2. The main components of the machine:

* Paper feeder: one

* Printing unit: First and second printing units A group of third and fourth printing units

The printing unit adopts two groups to ensure the accuracy and reduce the precision distortion in the assembly.

According to the domestic steel castings, the machine has been strengthened and enriched. The total weight is nearly 50% higher than that of the same type of machine, but the volume does not increase. The tensile strength, shock resistance, torsion resistance, wear resistance and stability are more suitable for commercial use. print.

* Delivery Unit: One

* Electric control device: a set

* Main drive system: a set

Plate cylinder diameter: Platen cylinder diameter: Platen cylinder diameter: Transfer cylinder diameter = 1:1:2:2.

First, the paper machine

Paper feeders and paper feeders are the standard structure of Zhongjing Company and have the following features and characteristics:

* Overlapped paper.
* The feeding nozzle position height can be adjusted as needed.
* Change the distance the paper table automatically rises by adjusting the presser foot position.
* The rotary valve has the function of automatically removing paper hair. This technology is a national patented technology.
* Limit safety devices are provided when the stack is raised to prevent the transport head from being damaged.
* Mechanical double-sheet control mechanism.
* When the platen is lifted, the paper on the paperboard is controlled by the nozzle and stays on the paperboard.
* The control side is equipped with a centralized control panel to perform centralized control of some functions of the machine.
* The maximum stack height is 940mm.
* The stacker drive uses a 2/8 class motor drive.
* Feeder synchronization setting mechanism is provided for the drive of the feeder.

Second, the paper positioning system

Including the former rules, side rules moments, paper holders and interlocking mechanisms.

1) The side convention moment is Zhongjing Company's standard structure.
2) The hem type front regulation can adjust the forward and backward position of the front gauge and the height dimension of the front cover plate as a whole.
3) A photodetector device is installed on the feed tray to detect failures such as splaying, emptying, and overdrawing. When the above phenomenon occurs, through the cylinder and the electrical control, the paper-feeding bite does not bite the paper, the front gauge does not fall down, and the paper is fixedly stuck on the paper transport board.
4) Encoder installed to detect and control the working time of the complete machine

Third, the delivery system

Including paper delivery mechanism, front roller, etc.

1) Conjugate cam-driven hem type paper delivery mechanism (adopts advanced hem type paper delivery mechanism, prolongs paper positioning time, has good dynamic characteristics, stable paper delivery, and is conducive to high-speed printing registration). The control cam is optimized through computer design and CNC precision machining.
2) Front roller, diameter Ñ„250mm, the tooth pad is an overall steel piece, hardened tooth surface treatment, its height size can be adjusted. Roller support, double row tapered roller bearings, pre-tightened before leaving the factory.