Business Form Printing Process Management (I)

Commercial form printing products mainly refer to various business forms used by banks, finance, transportation, energy, finance, trade, hotels, enterprises, research institutes and other units, as well as special printed products for continuous computer paper. The printing of business forms in China gradually began in the mid-1980s, and its total equipment and production capacity increased year by year. With the development of domestic electronic computer applications at an unstoppable speed, commercial form printing equipment is also surging in the country.

Commercial computer form printing is a kind of printing with strict process requirements and high product quality requirements. However, many domestic manufacturers ignore the production management, leading to unstable product quality, affecting the efficiency of computer use, and even some products are scrapped. Therefore, it is very necessary to correctly grasp the technical characteristics and quality requirements of business form printing. This article describes the business form equipment and production process management based on my own work.

Business Form Printer Performance and Management

Commercial form printing press is a multi-functional printing equipment that uses web as raw material, can print various specifications of notes and computer papers, and can also print large-scale mailpieces, labels and other products. The following is the introduction of the Spanish six-color "RK200S" business form printing machine as an introduction to introduce the structure and performance of a commercial form printer.

(I) Main technical parameters

1, the maximum printing paper width 500mm 4, the mouth width 10mm
2, the maximum printing width 480mm 5, the fastest printing speed 250m/min
3, roller size range 11inch to 25inch 6, paper range 35-180g/m2

(b) Use of raw materials

1, the use of pre-printed photosensitive PS plate, the thickness of 0.15-0.2mm, before the plate needs to be equipped with a curved plate bending machine for the first end of the arc, to avoid the printing size and overlay error, but also easy to install version.

2, the ink is generally used domestic quick-drying offset ink can be, multi-color large-area pattern you need to use UV ink. The machine can be equipped with UV ink drying device according to user requirements

3. The blanket adopts a self-adhesive blanket with a thickness of 1.02mm.

(c) Composition

The machine consists of a paper feeder, an offset printing unit, a reversal device, and a processing folding unit.

1. Paper Feeding Department: This department includes automatic paper feeding device, paper balancing device, paper pulling force control device, paper edge locator and so on.

(1) Automatic paper feeding device: The paper is automatically finished by the air pressure. The maximum diameter of the paper roll can be up to 50 inch, and the position of the paper roll can be adjusted left and right.

(2) Paper balance and tension control device: The paper passes through several paper guide rollers so that the paper can smoothly reach the tension control device. The machine's tension control device uses electromagnetic brake discs for control to make the paper walk evenly and moderate tension to ensure printing and processing accuracy.

(3) Paper tail monitor: When the roll paper is printed at a high speed, when the cartridge center volume reaches the set position, the machine automatically alarms, decelerates, leaves the pressure, and stops.

(4) Paper edge locator: It can automatically control the left and right position of the web to ensure the printing and processing accuracy. The device can also be adjusted at the paper receiving position.

2. Offset printing part: This machine is composed of the same offset printing unit, and can change the printing roller group of 11-24inch at any time according to the requirements of printing specifications.

In order to facilitate overprinting adjustment, each unit is equipped with automatic zero-setting device. After automatic zero-setting, the circumference of the drums of each unit can be rotated back and forth by 5mm, and left and right can be moved by 5mm respectively, so as to correct the deviation after zero. The combined pressure and pressure of offset printing are all pneumatically controlled. The dampening version uses an alcohol dampening system that can be adjusted according to the printing requirements.

3、Reversal device: It consists of a paper reversal mechanism and a vacuum pump, which can form a positive and negative six-color print at a time.

4, processing folding section: In order to ensure that the alignment of the multi-level sheet alignment is accurate, but also suitable for use by electronic computers, the machine assembly finite hole drilling, horizontal ridge, vertical ridge, slitting, waste discharge device, and then Can be folded into 8inch, 81/2inch, 11inch, 12inch and other specifications, but also equipped with a counting system for easy statistics.

(IV) Equipment site management

The quality of printing equipment has a direct impact on product quality, business efficiency and even production safety. According to the characteristics of strong periodicity, short time, and high quality requirements in the printing industry, only by properly managing the equipment can production be guaranteed. In particular, commercial form machines of this type are characterized by their high speed and good maintenance and quality of equipment. They can accomplish production tasks on time, quality and quantity, and enhance the market competitiveness of products. They have deeper effects.

The "RK-200S" form machine used by our factory has been used since the beginning of 1994, and it has been used since the beginning of 1994, not to mention any major failures. Even the wearing parts such as bearings have not been replaced. It was not until this year that we started to replace some ink rollers. Then, how to extend the life of the equipment. To ensure the normal production of equipment and increase the production capacity of commercial form machines? Please continue to pay attention to the following details.

How to extend the life of the equipment. To ensure the normal production of equipment and increase the production capacity of commercial form machines? To manage equipment properly, we must grasp two aspects:

On the one hand, the equipment must be carefully maintained. This is the key to ensuring the equipment is in good condition. Because our factory introduced such equipment from abroad for the first time, its price is relatively expensive. It raises the awareness of equipment management and maintenance of the company’s leaders and employees, and forms a comprehensive management of equipment, production, and technology in all directions under the leadership of the factory manager. The management method has changed from the traditional way of the past to the “lifetime” management of the equipment; the management function has also changed from simply ensuring production to centering on product quality to enhance equipment maintenance. Operators are required to abide by the rules of operation of the equipment, adhere to the "instance guarantee, guarantee, and total guarantee" of the equipment, so that the equipment meets the "four requirements", and the operation and maintenance of the equipment is included in the piece rate assessment. In the production process, the operating workers must strictly observe the operating procedures, and the management organization implements the working methods of the equipments “daily review, weekly inspection, and monthly review”. The regulations stipulate that the equipment shall be “daily subsistence insurance, weekend insurance, full monthly insurance”, and shall be led by the workshop director, and the assessment team composed of the foreman supervisors shall be assessed every class on a daily basis. Take 50% of piece-rate wages for equipment use and maintenance assessment. According to A, B, C, D, E five levels of assessment, found that the use of maintenance unqualified according to the severity of penalty. Severe violations of equipment maintenance regulations even cancel the day's production. As equipment maintenance and production are linked, equipment maintenance is implemented and production output and quality are guaranteed.

On the other hand, we must improve the quality of personnel to ensure the correct use of equipment. To do a good job of on-site management of equipment, the personnel factor is the first. The technical level of production workers and maintenance personnel is not high, and frequent changes of management personnel are unfavorable to the work. Therefore, before the production workers and maintenance personnel do a pre-job training, they must also impart knowledge of the production process, equipment performance, structure, maintenance, and management. For managers, it is necessary to pass on-the-job training and enhance modern management knowledge to meet the evolving management needs of commercial form machines. After the post training, it is necessary to establish a post responsibility system and implement the management method of “two references, one guarantee and three links”. That is, "manufacturing workers participate in maintenance, and maintenance personnel participate in the production of "two parameters"; to ensure the production of "a guarantee"; equipment maintenance and improve product quality, increase production, reduce costs linked to the "triple." In order to form a one-stop equipment management for on-site command, job responsibilities, economic evaluation, and management control in the site management, the production and maintenance are linked to each other and improve each other, realizing the high speed, high quality and high performance of the commercial form machine. The goal of profitable production.

(to be continued)