Corrugated cardboard box knowledge collection - carton machinery application

Carton Machinery <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>< Before the 1970s, carton production equipment was operated by a single machine, and the production efficiency was very low. In the 1980s, some carton enterprises started to introduce advanced equipment from Japan, corrugated board production lines, water-based printing slotting machines, and round press die cutting machines. Carton machinery companies began to imitate imported equipment. Due to the high cost of imported equipment from abroad, most of the domestic carton enterprises are unacceptable, and they are opening up the market for domestic machinery and equipment companies. The formation of the current more advanced carton packaging machinery and equipment. However, according to the current development of carton production, the demand for carton machinery and equipment is getting higher and higher. For carton packaging machinery enterprises to further open 4 extension high-speed, high-end, high-efficiency, high-tech carton machinery and equipment specified direction and the development trend of carton machinery.

Developing high-grade corrugated board production line is an inevitable trend

The corrugated board production lines introduced at home and abroad in the early days of the carton company (in the 1980s) have been used for more than 20 years and must be retired and replaced, requiring the purchase of relatively high-grade tile lines. Domestic large and medium-sized carton enterprises have a certain degree of economic strength and market competitiveness. Their products are high-quality, high-quality, medium-to-high-end cartons that are famous, special, and excellent. Of course, high-quality, high-grade, high-speed, high-efficiency, and wide-width corrugated board production lines are needed. If domestic machinery companies can produce “four highs and one width”, they will certainly be accepted by the carton industry, because the price gap between the domestic line and the import line is huge, and imports There is no strong economic strength of the line that cannot be afforded, and the low price of the domestic line is easily accepted by cartons. Of course, there is still a certain gap between the domestic tile line and the international tile line. These gaps are mainly related to structure, speed, material, processing, and processing, and require continuous efforts to organize research personnel to strengthen research and continuous improvement, spending 8 years and 10 years. It is possible to catch up with the international advanced level.

Single-faced corrugated units will be eliminated due to "centralized plate making, decentralized box making"

From the 1980s to the early 1990s, the single-faced wagon crew moved from the 1980s to the early 1990s to adapt to small and medium carton enterprises. It is feasible to replace stand-alone manual operations, but it cannot be compared with corrugated cardboard lines. Soft, poor quality, waste of raw paper and other weaknesses. At present, the pattern of "co-manufacturing and decentralized box manufacturing" within the industry and the single-sided corrugated units are bound to be eliminated. Instead of using the front cardboard, the cardboard box is used to purchase cardboard boxes.

The future direction of the carton machinery and equipment manufacturing industry is to reduce ordinary tile lines and develop medium and high-grade tile lines. Three-layer tile line and five-layer ordinary tile line belong to low-grade products. Due to the slow speed, poor quality, and low grade, they cannot meet the market demand and limit the development of carton enterprises. Some companies use ordinary tile lines for too long, aging equipment must update medium-to-high-end tile lines. Of course, due to economic conditions and sales restrictions, some small and medium-sized enterprises can only purchase ordinary corrugated lines for development and production. In addition, different regions must be treated differently. Carton packaging developed provinces and cities, such as Guangdong, Jiangsu, Zhejiang, Shanghai and other regions are basically suitable for high-end line. In the western region, the economy is lagging behind, and the packaging industry is also relatively backward. In some provinces, there are no tile lines, and relying on stand-alone and single-sided machines to produce cartons, some provinces and cities in the western region do not have several production lines, and ordinary tile lines are considered as “treasures”. There is room for development. Therefore, ordinary tile lines are also suitable for small and medium carton enterprises and economically backward western regions and cannot be eliminated. However, as a goal of the machinery manufacturers, carton packaging should be developed for the region, and the development of a new generation of high-end, high-speed, high-quality, high-sensitivity family box should be carried out. The carton machinery should also be developed to the Hi-tech content. There is still a big gap between the domestic carton machinery in the domestic industry and the advanced countries in the world. For example, there is a big gap between the United States, Germany, Japan, and Italy, and the gap in equipment prices is even greater. There is also a gap with China’s Taiwan region. At present, Taiwan's box machinery and equipment manufacturing plants have to compete with domestic carton machinery and equipment enterprises to occupy the domestic market. Taiwan's machinery and equipment prices are low, only 30-50% higher than domestic similar products, and are easy to be carton enterprises. accept. To force the domestic carton machinery industry to further improve product quality and to develop in the direction of "four heights and one width", we must catch up with Taiwan and move closer to the international advanced.

Focus on the development of carton processing equipment is the development direction

Focusing on the development of post-carton processing equipment is the direction of the carton machinery enterprises in the future. The carton production structure has been or is being adjusted to enter a new pattern of cooperation in specialized division of labor. Shanghai's newly established carton company basically adopts the mode of producing cardboard boxes after the processing of cardboard. It has less investment, fast output, low cost, and good efficiency. Corrugated cartons are an important part of the carton production process. After solving the board quality, the emphasis is on printing, slitting, bonding and die-cutting processes.

From the development trend of the carton industry in the new century, the first is to accelerate the development of medium-to-high-end cartons, with emphasis on the development of low-weight, high-strength, lightweight mid-high carton boxes; second, the development of flexible versions, multi-color printing and die-cutting carton boxes; The kraft linerboard transportation packaging is gradually replaced by the white version of the Niuqai color-faced printing product packaging to realize the commercialization and serialization of the inner and outer packaging; the fourth is the development of the special-shaped carton carton and the fine corrugated (DE) corrugated carton carton. Die-cutting achieves beautiful, generous, lightweight and provides consumers with convenience.

It is the development trend and important goal of the carton industry during the "Tenth Five-Year Plan" period that the products have reached standardization, serialization, multi-species, multi-substrate, and multi-purpose. To achieve the above goals, the transformation of technical equipment in the carton industry is an important aspect and will provide opportunities for carton machinery and equipment enterprises. Corrugated board production line will be equipped with DE single-sided machine and slitting computer thin blade press. After the process equipment is equipped with high-speed, multi-functional, multi-color, clean waste water printing slotting machine, flat-press high-speed die-cutting machine or high when the indentation machine, thin blade cutting indentation machine, high-grade printing surface veneer, automatic Or semi-automatic bonding machine and laser computer engraving machine and flexographic processing equipment, etc.

The most advanced foreign corrugated cardboard production line

In the 1990s, the modern carton industry entered the stage where electronic computers and high-tech were more widely used. Production control, process control, complete production lines, and automatic control of production operations throughout the plant are commonplace.

The new structure and technical innovation of each single mainframe, connecting link and auxiliary equipment on the corrugated cardboard production line, and even key applications such as corrugating rollers, cross cutter knives and knife bodies, have been used in previous industry conferences. I have made remarks and I will not repeat them because of limitations on space and time. Only the technical innovations of the two mainframes, single-sided machines and double-sided machines that directly affect the speed and performance of tile lines, are introduced.

In 1995, at the time of the 100th anniversary of the establishment of the Langston Company in the US, the world’s first multi-layer single-sided machine was created. It is a positive pressure type quick-change corrugating roller structure, and a group of corrugated rollers is placed on a movable trolley. Withdrawal and migration to achieve a change in the type of corrugated, it should be said that this is the first pioneering initiative. Since then, there have been Super 90ACS multi-valve single-sided machines (AC positive pressure, trolley-type mobile) launched by Italy's Agrati company, Germany peter box type ram positive pressure multi-valley single-sided machine; In March 1998, a single-faced machine with a unique and innovative structure with a replaceable corrugated pattern and an extremely large upper corrugating roll (D1=40” to 48”, Dmax=φ1120mm) and an extremely small corrugating roll (D2=127mm) was manufactured. pyr6bondTM, Vmax = 395 m/min (A corrugating roller running).

The aircraft is dedicated to the world of cardboard boxes as a gift for the company’s 30th anniversary. The development process took two and a half years and 150 engineers participated in closed research and design production. It is said that this extra-large and small corrugating roller forming structure allows the core paper to pass through a short path between the two-watt roller paths, reduces the contact between the paper and the top of the crucible, reduces the pressure of the formed caliper, and forms a corrugated type. The wrap angle and length of the paper on the extra corrugated roller is 4 to 5 times that of the conventional single-faced machine, so the adhesiveness is good, and the rubber material is extremely small, which promotes the reliability of the ultra-high speed operation; the contact wear of the small corrugating roller is reduced to One-third of the traditional model; while the upper corrugated due to the large diameter of the wear and tear is also very small, known as zero wear; small corrugated roller due to the use of a special surface treatment is also durable wear; once the need to replace the roller, as long as the replacement of small corrugated roller You can. It is said that after the sale of several units of this machine, due to high prices, high precision and high degree of difficulty, etc., it has not been popularized and popularized. However, the extraordinary spirit and style of this innovation is the rapid development and innovation of carton machinery in the United States. The root cause.

The flip-type quick-change corrugating roller single-faced machine has been patented. It is an innovative structure of German BHS Company, British Simon Company, etc., commonly known as calendar type single-sided machine. The replacement of the stern type is more rapid and simple than the pan type. It is like flipping a calendar. Its principles and advantages can be seen in illustrations and explanations are not intended. They are preconditioned in the surface and in the paper, the setting and positioning of the gluing mechanism and the forgiving position in the roll change, the positive pressure type box seal or the sealing squeegee type seal to prevent the positive pressure from leaking. . Germany's BHS's flip-over quick-change multi-roller roll single-sided machine (patented) has several lines running in China.

American HOT FOOT double-sided machine (flat-pressure type) of U.S. corrugating machine gears and service company, and supreme belt double-sided machine composed of similar flat-pressure type pressurizing mechanism of U.S. , Adjustable pressure, heat transfer, heat fast, conducive to drying and increase speed.

U.S.SCM and British SHS have no short and high-efficiency double-sided conveyors (acquired UK patents) on the upper and lower conveyor belts. The thermal section is 7950mm long, and the cooling transmission section is 2660mm. The vacuum conveyor belt is used to pull the cardboard, plus The pressure structure is composed of three groups of pressure plates, each of which is a group of four pressure plates, which can be adjusted up and down to adjust the amount of heat. Each group presses the pressure plate with hot air so that heat conduction and drying are extremely rapid.

U.S. Joint Carton Machinery Company's double beltless double-sided machine uses superheated steam to spray into the hot plate on the drilled dense holes like a gun to penetrate the heated heat transfer pressure plate to the cardboard and hot plate. To achieve rapid drying effect.

Germany Peter's patented controllable thermal double-sided machine, hot section is divided into 3 or more sections, the hot plate consists of a very precise square tube with a wall thickness of 4mm, and the heat transfer is rapid. The pressurization is completed by the hot air pressurization system. Each zone is equipped with an infrared heat sensor to measure the temperature, and the microcomputer controls the fully automatic adjustable steam cutting to adjust the steam flow rate and its flow rate. The temperature can be controlled within a few seconds to realize the double-sided machine. Closed-loop temperature control, with extremely high thermal efficiency, is a highly advanced and original system that is unique in the carton industry. The automatic temperature control and heating system was developed and provided by Peters company in cooperation with the highly reputed Donahue and Cooperative International.