The overall system design and function analysis, taking into account the convenience of system debugging and maintenance, the software uses a structured design method. Each function in the system is designed as an independent functional module. By installing these functional modules, a hierarchically structured system is formed. The system is divided into 8 subsystems and has 4 levels.
Contract Management Module This module has 4 functions: contract entry, contract inquiry, contract modification, contract deletion. Enter the contract to complete the entry of the contract. In order to facilitate the use of the user, a method of combining computer auto-filling, mouse selection, and manual input is adopted. As much as possible, the user can use the keyboard to input data as little as possible. The contract inquiry completes the inquiry work for the contract. All operations can be completed with the mouse, the operation is simple and convenient. According to the function is divided into by product number query, query by product name, query by unit number and by unit name. The contract modification completes the modification of the contract library. This module adopts the cache array technology, that is, first transfer the header of the contract library and the records to be modified to the arrays STR1 and STR2, then modify the array, and then store the data into the contract library after correctness is determined, thus avoiding the data caused by the wrong modification. Lost. The contract deletion completes the elimination of useless data.
Arrival Management Module This module registers and checks the purchase, and it is divided into two functional modules: arrival entry and arrival inquiry. Arrival entry records the acceptance of qualified goods into the corresponding database. There are 6 databases involved. The return of defective goods is registered and entered in the corresponding database.
A4 Paper Machine
This is A4 Paper Making Machine,writing and printing paper making machine.
According to the different paper grade and working speed, this kind of paper machine is needed to select the way of papermaking, dewatering structure of press section, dryer cylinder bank, sizing and finishing equipments.
Sheet forming can use the open-type headbox, air-cushion headbox, and hydraulic headbox, gap former and inclined wire former. According to the paper uniformity requirement, it can use distributor roll or finishing surface roll.
Press dewatering type is multi-roll and multi-press nip press rather than large-diameter press. As the low basis weight and wet strength of this kind of paper, it usually makes the low strength wet sheet attached to the felt or guide rolls during each section mutual transferring and full web leading as much as possible.
Dryer section: dryer cylinder group. Paper leading: active or passive paper rope system. Finishing equipment: To choose according to the paper grade requirement.
Now we introduce the technical proposal and structural drawing of Fourdrinier advanced printing paper machine, which we made for Taiqian Minrui Huatong Paper Company in Henan province, China. The advanced printing paper of this company is the famous brand in China.
Trimmed width: 2640mm
Working speed: 400m/min
Basis weight: 50-100g/sq.m.
Headbox: Air-cushion headbox
Forming table length: 15m
Suction flat box with all stainless steel micro-crystal cover.
Press section: four rolls two press nips
The wet sheet is stripped by pick-up suction unit.
The second under press nip rubber blind bottom roll diameter is Φ800mm, with drive unit;
The suction top roll diameter is Φ800mm, with drive unit.
The top press nip is made by a stone roll and a rubber roll. The rubber roll diameter isΦ800mm, with drive unit;
The stone roll diameter is Φ850mm, with cut squirt.
This structure ensures the low strength wet sheet can press smoothly and paper breaks can be reduced.
The smooth press rubber bottom roll diameter is Φ800mm; the top stone roll diameter isΦ850mm. The paper leading roll has the drive unit.
The dryer section has 32 dryer cylinders with the diameter of Φ1800mm, which is divided into five groups: three groups for before-sizing, two groups for after-sizing. The top and bottom felt of first group and the group at the back of sizing machine is equipped with six felt drying cylinder with the diameter of Φ1250mm, which can dry the moisture well and improve the drying efficiency.
The paper leading roll has the drive unit. The paper leading type is three-stage passive paper rope system.
Sizing machine: inclined type surface-sizing machine.
Calender: four roll three press nips; the number is decided by the demands.
Reeler: horizontal pneumatic reeling machine.
If you are interested in our products, please feel free to contact us for more information, we are glad to give you the competitive quotation upon receipt of your detailed requirements.
A4 Paper Making Machine,A4 Paper Machine,Writing And Printing Paper Machine,A4 Copy Paper Making Machine
Dandong Tianshin Automatization Technology Co.,Ltd , https://www.ctpmmachine.com