Questions and answers on the corrugated board production line
Questions and answers on the corrugated board production line

Questions and answers on the corrugated board production line

Key factors determining tile line production capacity

In production and manufacturing, the key factor to determine the production capacity of corrugated production line is the "average rate". At this stage, many carton equipment manufacturing enterprises have chosen a new control system to enhance the distribution and application of power engineering in tile line production and manufacturing, and compare the types of tile lines. High speed corrugated production line can easily achieve the same production capacity without frequent rate changes in production and manufacturing, can save 20% of electromagnetic energy consumption, and greatly reduce the unqualified rate in production and manufacturing, greatly reduce the kinetic energy and material consumption in production and manufacturing. The smooth operation of the tile line ensures that the quality of the manufactured cardboard is consistent. It is worth mentioning that the application and maintenance cost of corrugated production line is very low, which improves the return on investment of machinery and equipment. Selection of integrated operation panel and industrial touch screen and other intelligent systems and personalized design scheme, make the actual operation of tile line more visualized and simple, strong to reduce maintenance costs and labor costs.The key to pay attention to the corrugated production line equipment steam running, emission, leakage and the adjustment of the machine and equipment. Repair, equipment department according to the machine equipment application problems to formulate detailed maintenance plan and implementation. Among them, the daily maintenance of machinery and equipment is very key and also a way with less capital investment and less cost, but the actual effect is good. On the one hand, it can increase the service life of mechanical equipment and maintain all normal and stable operation, on the other hand, it also reduces the probability of equipment failure, and the occurrence of non-defective products, and also saves capital investment, which is to reduce the cost of tile line. Also pay attention to the effective inventory of spare parts of machinery and equipment, not only to reduce the asset occupation, but also to ensure immediate maintenance, to ensure production and manufacturing. The application of corrugated production line manufacturing intelligent management system to control the product cost, can be more accurate statistical analysis of tile line productivity, complete the production line speed at the same stage, reasonable waste reduction. The selection of automatic paper machine to pick up paper, will greatly reduce the consumption of original paper, and can improve speed, improve productivity. It is rarely necessary to install an automatic paper feeder at the front of the plywood process if cost is considered.

A brief analysis of the production process and common problems of corrugated board production line

After the summary of recent years, through the hengchuangli packaging machinery company website to the user friends for the necessary answers, in order to make in operation, through my company's corrugated production line to improve the production efficiency, help production line length easily complete business targets. Under normal circumstances, our company's five-layer corrugated production line is equipped with two pit machines, one machine has two people, one is the main head, responsible for operation, the other deputy, responsible for preparing paper and other work; For double-sided machine and pit machine, computer operator, two captains are mainly responsible for spot check quality and order scheduling, and the deputy helps the captain to complete the same work (not if the captain is capable); General worker: one person for counting, one person for putting board, two people for turning board, two people for packing, two people for lifting board (not necessary if the machine speed is not fast), three people for pulling truck (depending on the location of warehouse), one forklift driver, responsible for taking base paper and supplying production line, all about 20 people, our company's corrugated board production line is 1.8m, there are 24 people in total. In the early use, such as improper debugging, will encounter the problem of dry cardboardFirst look at the cardboard there is no false adhesion phenomenon (false adhesion is that the cardboard looks like adhesion, in fact, there is no adhesion, if to tear it will be off), if there is false adhesion phenomenon, debugging to increase the amount of glue. If there is no false adhesive, you can appropriately lower the temperature of the preheating cylinder. In the process of use, if the production line can not speed up, poor adhesion problems, Requires attention to the problem of formula of the adhesive (glue), starch pasting temperature of glue to ensure proper line problem, long production speed control, steam pressure, enough paper guide roller and pressure roller wear deformation, tile one spend big, old production and processing equipment, improper operation technology, etc are the cause of cardboard bonding bad. For corrugated board production line can run efficient, high quality, not only to solve the problem of adhesion of the corrugated cardboard bad, also need to understand the characteristics of the equipment, paper, adhesive, according to the different type of cardboard and paper, different production speed, timely adjustment of process parameters in order to satisfy the requirement on the properties of corrugated board. In order to avoid the above problems, it is necessary to strictly implement the maintenance plan in the daily production process of corrugated cardboard production line, including daily maintenance, weekly maintenance and monthly maintenance. Daily maintenance refers to the parts that need liquid lubricating oil lubrication and equipment surface cleaning. Weekly maintenance refers to the maintenance of parts and auxiliary equipment that need solid oil lubrication. Monthly maintenance refers to the maintenance of high temperature, high precision and high pressure parts. The good implementation of maintenance plan will also reduce the noise in the workshop. The noise of our company's corrugated board production line is about 88 decibels when the speed is 180 meters. The reason for the low noise lies in the precision and design structure of components. In this way, employees can have a stable state of mind, which is conducive to improving their attention and productivity.

How to deal with the wastewater produced by water-based ink in the printing process

Lead edge feeder colors Flexo printer slotter rotary die cutter machine  Now the scope of application is more and more, especially some articles in contact with human skin, such as books, magazines, corrugated paper and other prints, in the packaging and printing of wine, tobacco, medicine, cosmetics, children's toys, as well as milk and drinks such food grade packaging brush is also widely used. Waterborne ink in production and printing, due to equipment cleaning and other reasons, it is also inevitable to produce some wastewater. These wastewater due to contain a small amount of chemical additives, if directly discharged, will pollute the environment, how to make the use of water-based ink more environmentally friendly, you need to do some treatment of these wastewater.How to treat, let's first look at the characteristics of water-based ink wastewater?Although water-based ink itself and printed products are safe and environmentally friendly, many additives are needed to assist printing in the process of printing, such as organic pigments, azo pigments, phthalocyanine pigments, nitro pigments, lake pigments, reducible pigments, nitroso pigments, heterocyclic pigments and other types. In addition, it also contains stabilizers, defoaming agents, blockers, surfactants, preservatives and more than ten kinds of additives. The wastewater produced by water-based ink is weak alkaline, contains some organic matter, high chroma, low RATIO of BOD/COD, need to be treated to reach the comprehensive sewage discharge standard (GB8978-1996)Here is the specific implementation method:1. Adjust the pH, the workshop ink wastewater concentrated in the underground collecting tank, after a lift to the acid extraction tank, add sulfuric acid in the acid extraction tank, adjust the pH value to 2.0~3.0,2. The filter: The dissolved acrylic resin in the wastewater into solid, precipitation from the wastewater, through the sand filter drying tank filtration, filtering liquid, and the solid material removal, precipitation of propylene acid, water filtration CODcr can be reduced to about 1500mg/ L, after acidification slag removal of wastewater into the middle pool, due to the pH value of the wastewater has been reduced to 2.0~3.0, The subsequent treatment is more clear. This hydrolytic acidification process is mainly used for wastewater with high concentration of organic matter and solid suspended matter, which is an important step in the whole process.3. Degradation: If the solid suspended solids in the water are high, hydrolytic bacteria will capture them through the extracellular mucosa and hydrolyze them into molecular fragments with extracellular enzymes, and then enter the cell for metabolism. Incomplete metabolism will degrade the solid suspended solids into soluble organic matter, and the water will become clear. Hydrolytic bacteria hydrolyze organic matter, break the covalent bond of organic matter, release the bond energy, so as to use this bond energy to complete life activities.4: neutralization precipitation: waste water again after ascending to counteract settling basin, adjusting the pH to 8.0 ~ 9.0, while adding PAC (polyaluminium chloride) and PAM (polyacrylamide), under the action of PAC and PAM, waste water coagulation reaction, forming a large number of alum trivia, after precipitation separation alum flowers, supernatant fluid into the aerobic pond, biochemical treatment. The treated waste water is settled by a secondary sedimentation tank.Such a set of processes go down, the basic production process can produce wastewater, discharge standards. Leave a clean sky for future generations. Star color technology Co., Ltd. has been committed to improving environmental protection, the production of water-based ink to reach the international advanced water products.The source of star water-based ink

Printing technology

1. Copy of textPrinting technologyPrinting technology2. Dot imaging3, oil and water are not misciblePrinting technology is the method of mass reproduction of text images through plate making, printing and post-press processing.Printing technologyPrinting technologyThe broad definition of printing technology should be: printing technology is the general term of printing technology and printing equipment. Printing technology and printing equipment are interdependent and promote each other as a whole. Simply speaking, printing technology is inseparable from the printing press. The printing press is also inseparable from the printing process. In this way, the printing technology at home and abroad has developed continuously.The technical personnel of the printing factory should not only be skilled in printing process skills, but also master the knowledge of printing process equipment (printing machine); On the contrary, the technical personnel of the printing machine factory are not only good at the design and production skills of the printing process equipment {printing machine}, but also should master the knowledge of the printing process. The better the combination of the two, the more refined the knowledge of printing technology, and the more favorable the development of new technology and new products. Therefore, the meaning of standard terms should be fully understood.China has a long history of printing, as early as in the eastern Han Dynasty xing first year (105 years) Before CAI Lun invented paper, the spring and Autumn and warring States period has been invented in the end of the silk with Yin pattern hollow plate printing. In the late Sui and early Tang Dynasties, that is, in the early 7th century, block printing was invented. In the Northern Song Dynasty, the printing giant Bi Sheng adopted movable type printing (1041), creating a new era of movable type printing on paper in the history of Chinese printing. In the following 1000 years of development, printing went through intaglio printing, lithography and other technological changes.

The utility model relates to a single corrugated board covering production line

The utility model is put forward a kind of single face corrugated board with wrapping production lines, including double corrugated paper output module, a pre-printed paper output module, glossy paper output module, pressure lose curing module, flip piling device and can be described with a pre-printed paper output module or described in the surface of paper output module with joint module of joint, double corrugated paper described output module, joint module, piling pressure curing module and flip The devices are arranged in turn along the input direction of the paper. The utility model solves the problems of high labor cost and low work efficiency existing in the single-sided corrugated board covering production line in the prior art.

What Are The Types of Flute?

What Are The Types of Flute? 5 standard types of fluting There are five standard types of flutingB-Flute : B-Flute is Primarily used for canned goods packaging, the B flute provides the second highest arch size at about 49 flutes per foot.C-Flute : C-Flute is the most commonly used corrugated box flute.

What is a flute of Corrugated Carton Box

What is a flute of Corrugated Carton Box Fluted liner is the wavy piece of board sandwiched between the liners and gives a box its strength and protection from knocks and impact damage. To create the fluted effect rolls of paper are fed into a corrugated roller machine

13 Steps Of Corrugated Cardboard Manufacturing Process

13 Steps Of  Corrugated Cardboard Manufacturing Process Pulping the pine chips 1 Manufacturing a corrugated cardboard box begins with the pulping of wood chips in the kraft (sulfate) process. First, tree trunks are stripped of bark and torn into small chips. Next, these chips are placed in a large, high-pressure tank called a batch digester, where they are cooked in a solution, or liquor, made of sodium hydroxide (NaOH) and several other ionic compounds such as sulfates, sulfides, and sulfites. These strongly alkaline chemicals dissolve the lignin, the glue-like substance that holds the individual wood fibers together in a tree trunk. 2 When the pressure is released after several hours, the wood chips explode like popcorn into fluffy masses of fiber. Making kraft paper 3 After additional cleaning and refining steps, a consistent slurry of wood pulp is pumped to the paper-making machine, also known as a Fourdrinier machine. Gigantic, square structures up to 600 feet long (182.88 meters), these machines contain a wire mesh in which the paper is initially formed. Next, the paper is fed into massive, steam-heated rollers and wide felt blankets that remove the water. At the end, the finished medium, or liner, is rolled for shipment. Shipping and storing the kraft paper 4 Rolls of kraft paper for corrugating are available in many sizes to fit the production equipment at different corrugating plants. The most common roll sizes are 67 inches (170.18 centimeters) wide and 87 inches (220.98 centimeters) wide. An 87-inch roll of heavier paper can weigh up to 6,000 pounds (2,724 kilograms). As many as 22 rolls of 87-inch paper can be loaded into one railroad boxcar for shipment to a corrugating plant. 5 At the plant, the kraft paper is separated into different grades, which will be used for the medium and the liner. These different grades of corrugated cardboard can be made by combining different grades of kraft paper. A knowledgeable packaging specialist works with a customer to determine the strength required for the corrugated cardboard container being planned. Then, when a plant receives an order for containers, a product engineer specifies the combination of medium and liner to produce a cardboard to match the customer's requirement. Corrugating the cardboard 6 Using powerful fork-lifts, skilled equipment operators select, move, and load rolls of kraft paper at one end of the corrugator.Corrugated cardboard manufacture includes two key steps: making kraft paper and corrugating the cardboard. Kraft paper involves pulping wood chips and then feeding the resulting paper substance through massive steam rollers that remove the water. Corrugating is also done in a machine that utilizes heavy rollers. One roll of cardboard is corrugated and then glued between two other layers (liners) by the same machine. The glue is then cured by passing the cardboard over heated rolls.Corrugated cardboard manufacture includes two key steps: making kraft paper and corrugating the cardboard. Kraft paper involves pulping wood chips and then feeding the resulting paper substance through massive steam rollers that remove the water.Corrugating is also done in a machine that utilizes heavy rollers. One roll of cardboard is corrugated and then glued between two other layers (liners) by the same machine. The glue is then cured by passing the cardboard over heated rolls. 7 One roll of medium is loaded to run through the corrugating rolls, and a roll of liner is fed into the corrugator to be joined with the corrugated medium. Liner from another roll travels up over the corrugating rolls along a flat structure called the bridge. This liner will be glued to the corrugated medium later in the process. 8 For a large production run, additional rolls are loaded into automatic splicers. Sensitive detectors check the rolls of paper feeding into the corrugator. When a roll is nearly empty, the corrugator control system starts a splicer, and paper from the new roll is joined to the end of the paper going through the machine. Thus, production of corrugated cardboard is continuous, and no production speed is lost. 9 The medium to be corrugated is fed into the giant, electrically driven rollers of the corrugator, first through the preheating rollers and then into the corrugating rolls. Steam at 175 to 180 pounds of pressure per square inch (psi) is forced through both sets of rollers, and, as the paper passes through them, temperatures reach 350 to 365 degrees Fahrenheit (177 to 185 degrees Celsius). 10 The corrugating rolls are covered with I O flutes —horizontal, parallel ridges like the teeth of massively wide gears. When the hot paper passes between the corrugating rolls, the flutes trap and bend it, forming the middle part of a sheet of corrugated cardboard. Each corrugating machine has interchangeable corrugating rolls featuring different flute sizes. Installing a different A finished piece of corrugated cardboard consists of a single corrugated layer sandwiched between two liner layers.A finished piece of corrugated cardboard consists of a single corrugated layer sandwiched between two liner layers.flute size in the corrugator changes the width of the corrugated medium. 11 The medium travels next to a set of rollers called the single-facer glue station. Here, one layer of liner is glued to the medium. Starch glue is carefully applied to the corrugated edges of the medium, and the first layer of liner is added. From the single-facer, the medium and liner go to the double-backer glue station where the other layer of liner from the bridge is added following the same procedure. Continuing through the corrugator, the cardboard passes over steam-heated plates that cure the glue.Forming the blanks into boxes Forming the blanks into boxes 12 At the end of corrugator, a slitter-scorer trims the cardboard and cuts it into large sheets called box blanks. Box blanks pop out of the slitter-scorer like wide slices of toast and slide into an automatic stacker that loads them onto a large, rolling platform. From here, they will be transported to the other machines that will convert them into finished containers. Skilled production workers use a computer terminal and printer to prepare a job ticket for each stack of box blanks produced by the corrugator. With the job ticket, workers can route the stack to the right fabrication machines, called flexos (the name is short for flexographic machine). A flexo is a wide, flat machine that processes box blanks. 13 Printing dies and die-cutting patterns I 3 are prepared in a pattern shop on large, flexible sheets of rubber or tin. The dies and patterns are loaded onto the large rollers in the flexo, and the box blanks are automatically fed through it. As each blank passes through the rollers of the flexo, it is trimmed, printed, cut, scored, and, in a printer-folder-gluer, folded and glued to form a box. From the flexo, the finished boxes are automatically stacked and sent to a banding machine to be wrapped for shipping. Other equipment in a corrugating plant includes stand-alone die-cutters, die-cutters with print stations, and machines known as curtain coaters that apply a wax coating to fruit, vegetable, and meat containers. Box blanks requiring only simple, one-color printing and die-cutting can be run through a stand-alone die-cutter, print station, and curtain coater to produce water- or grease-resistant containers.

Overview For Design Of Corrugated Cardboard Making

Overview For Design Of Corrugated Cardboard Making  Kraft paper has been manufactured since 1906. Since then, pulp processing, paper making, and corrugating operations have been developed to a high state of efficiency and productivity. Today, in the corrugated cardboard industry, designers are creating innovative containers that require four-color printing and complex die-cutting. These innovative containers are designed with sophisticated software such as computer-aided design (CAD) programs, allowing a packaging designer to brainstorm different package designs before manufacturing begins. A designer using a CAD program can call up and modify different designs that have been stored in a computer design library. Thus, existing packages can generate new designs. Many retail stores use such light, strong, and colorful containers directly, as point-of-purchase displays.

What is the raw material of corrugated cardboard?

What is the raw material of corrugated cardboard? Fast-growing pine trees provide the primary raw material used to make corrugated cardboard. The largest packaging companies own thousands of acres of land where trees are matured, harvested, and replaced with seedlings. After the trees are harvested, they are stripped of their limbs; only the trunks will be shipped by truck to a pulp mill. The largest packaging companies also own the mills where trees are converted to kraft paper. At the mill, the harvested tree trunks are subjected to the kraft process, also known as the sulfate process because of the chemicals used to break down wood chips into fibrous pulp. After pulping and other processing, the fibers are sent directly to the paper machine where they are formed, pressed, dried, and rolled into the wide, heavy rolls of kraft paper sent to corrugating plants to be made into cardboard. At the corrugating plant, only a few other raw materials are needed to make a finished box. Corn starch glue is used to bond the corrugated medium to the liner sheets. Because so much glue is used, rail cars or large tanker trucks deliver it as a dry powder that will be stored in huge silos at the corrugating plant until it is needed. Drawn from the silo, the dry corn starch is mixed with water and other chemicals and pumped into the corrugator to be spread on the corrugated medium as the layers of liner are added. Other raw materials are used to finish the corrugated cardboard after production. Waxes made from paraffin or vegetable oils can be applied to make a water- or grease-resistant container for food products. Brightly colored inks are also applied to create bold graphic designs for self-supporting displays featuring product name, information, and company name and logo. Teams of salespeople and designers work together to create the manufacturing and printing patterns, called dies, that are used to cut and print a specific box design. The dies are created in a pattern shop and transferred to the rotary die-cutting equipment and printers that finish the box blanks.

Overview of Corrugated Cardboard Production Process

Overview of  Corrugated Cardboard Production Process A corrugator is a set of machines designed to bring together three, five or seven sheets of paper to form single, double or triple wall board in a continuous process. Corrugating the flutes and gluing to a single linerGluing the outside liner to make a rigid boardCutting the board to the desired size Three sheets of paper (containerboard) are unrolled simultaneously on the corrugator: the inner liner, the outer liner and in the middle, the medium (also called fluting).The medium sheet is given a "wave". This corrugation is obtained by pressing the sheet under heat through grooved metal rolls. This operation gives the paper its fluted shape in the single facer.Starch is applied to the tips of the flutes on one side, the outer liner and the inner liner are glued to the tips of the corrugated medium sheet of paper from the outer and the inner side respectively.The Corrugated board comes out of the corrugator as a flat board sheet.

Overview of Corrugated Cardboard Production

What is corrugated cardboard making machine?    A set of machines in a row, which is designed to adhere three (a standard board), five or seven sheets of paper that shape single, double or triple walled corrugated boards. The corrugator is a continuous system which produces in bulk. The system works in the following ways. Firstly  reels of paper will be fed into the corrugator,where at this point the paper is conditioned with heat and steam prior to being fed into the single facer. The single facer is a section of the corrugator which, transforms the paper into the flute by creating a series of arches. These arches are created by large rotating cylinders with a corrugated profile which creates the grooves in corrugated paper.There are different profiles for each of the flute types previously listed. Next still included as part of the previous stage, starch is applied to the tips of the flutes on one side, where an inner liner is then affixed to the fluting – this is called a single web. The second part of production is a part of the machine called the double backer. In essence, the double backer glues the single web to the outer liner following a similar process to the step above. During the course the product is heated to ensure that the bonds are strong, gelling the glue and removing moisture.