Offset Installation and Debugging Layout and Planning (1)

Before installing the machine, technicians, mechanics, electricians, and operators are required to install, commission, and inspect the equipment, and read the relevant information provided by the manufacturer carefully to understand the machine's weight, length, width, and height. Technical parameters, combined with the actual situation of the workshop, reasonable selection of installation location and consider the basic requirements of the printing process: easy production management, favorable operation, safe production, but also taking into account the stacking of finished products, semi-finished products, the operator's touring aisle, Machine maintenance space, fire exits, and the location of ventilation, lighting, and piping during normal printing.

A reading offset printing machine instruction manual

Operators and maintainers must read and fully understand the contents of the instruction manual before using or maintaining the offset press. The purpose of reading the instruction manual of the offset press is to enable the user and the maintenance worker to be able to target and do more with less, avoid blindness and wrong operation. .
The instruction manual is generally divided into: safety precautions, such as: equipment safety device and location, operation precautions and so on. In addition, the installation and operation guides (preparation work and basic operation) of the overall diagram of the machine are also attached. The instruction manual describes in detail the adjustment and use of the registering device, printing device, inking device, water supply device, and delivery device, so before operation Reading the instructions carefully is a very important task.

Two to determine the position

To determine the aircraft position to consider the following aspects:

The first thing to consider is the footprint of the machine. Secondly, we must consider the development trend of printing companies and leave room for additional equipment. The positioning of the machines must be in accordance with the needs of the production process. We must consider: the location of the incoming materials, semi-finished products and finished products, and generally a multi-color offset press. Feeding, semi-finished products, and finished products need to be reserved at a position of 50 to 70 square meters. If a multi-color offset printing press that specializes in printing paper jams needs to reserve a larger area, otherwise the product cannot be turned around. There are also reservations for auxiliary equipment positions: such as computer consoles and watchstands, water tanks, electric boxes, air pumps, cabinets, fire protection, and transportation passages. If they are automatic or semi-automatic offset presses, they should be set aside for curved editions. Machine place. For sheetfed offset presses, the height of the workshop should not be less than 3.5 meters. In addition to considering the height of the machine, there should be the height of the loading chassis, the height of the rolling steel pipe (or the height of the 88-car activity), and the gantry The height of the frame and the height of the hoist, the best plant height is 4 to 4.2 meters, if the plant height is less than 3.5 meters, there will be trouble when the new equipment is lifted off or over. . The plant height of the web offset press should be determined based on the height of the machine. The distance from the wall to the receiving position is not less than 2 meters. The distance from the paper feeding site to the wall is determined by whether the machine has pre-installed paper equipment. The determination of flight seats should also give people a beautiful and generous appearance. This is like decorating a house and placing furniture. It requires a strong visual impact and makes people feel particularly comfortable.

[Case 10-1]

A large printing company newly purchased a 6+LX one from Hyderabad. The machine was installed at the right-hand window of the workshop. Since the cabinet and the distribution box were installed on the left side of the machine and blocked the appearance of the machine, people walked into the workshop. I can't feel the style of the latest 6+LX models.

[Expert Tips]

Such a large-scale high-grade offset press is determined, it must be investigated and organized by experts.

Arrangement of three attachments

The distribution box of the offset printing press is generally mounted on the drive surface of the machine by the sheet feeder, so that the path of the line is the shortest. The computer desk is placed on the delivery section of the drive surface. This arrangement facilitates the routing of the wires on the computer console. The central tank and the vertical central pump of the closet are located in the center of the machine's transmission surface. This facilitates the installation of the gas line and the wiring. The automatic or semi-automatic bending machine is preferably placed near the computer station. Before the new printing plate puts on the machine first pre-adjusts the ink volume on the computer table, then bends the plate, finally on the machine, this kind of arrangement is more reasonable. The outlets of water pipes are arranged near the water tanks, and there are conditions to make dark pipes (pre-buried) as much as possible, and a sewer is reserved near the water tanks for the cleaning of the water tanks. The 220V and 36V power sources should be embedded in the wall for use when the equipment is being serviced. If there is a central air supply, leave an air supply at the delivery, feeder, and middle of the machine for use when servicing the equipment.

Four foundation preparation

Offset presses are precision instruments in terms of equipment installation accuracy requirements. They have high requirements for the bearing weight and flatness of the floor. The quality of the floor foundation directly affects the equipment installation accuracy, product quality and equipment service life. The standard configuration of the four-color machine weighs about 30 to 35 tons, and the bearing capacity of the foundation (dynamic load factor 1.2) must not be less than 25 kPa, and the ground flatness error must not exceed 5/10000.

In the initial period of the foundation for production, the foundation soil of the storage equipment shall be inspected. If conditions are available, the exploration department shall analyze the soil conditions and provide opinions. For areas with loose soil, compaction grouting and pile filling methods may be adopted. The specific construction plan depends on the soil quality.

For the better soil quality, the usual construction method is: in the place of the storage equipment, 600mm soil layer is excavated. First, lay a layer of stone, and then lay two layers of steel bar on it, and pour 500mm thick concrete (the concrete mark For C25) then do the flattening and water milling (Figure 10-1).

(Figure 10-1 Cross section of foundation construction)