The operation steps of the metal can sealing machine will be explained in detail next.

1.Start the metal can sealing machine first, and see if the rotation direction of the tray is consistent with the indicated arrow direction (from right to left)

2. Start all the conveying motors and determine the direction of the cans (facing the tray, the cans are sent from left to right)

3. Our company is based on the sample can provided by the user, all positions will be adjusted before leaving the factory, and the user generally does not need to adjust it. But if the tank type is changed, the user needs to re-adjust the specific position.

4. When working, if any tank body leaks the lid, the sensor switch on the top informs the host that the tank is not sealed, and the tank body is sent out directly without stopping the machine.

5. Air pressure: The air source pressure is lower than the set pressure and the car cannot be driven. In order to ensure the normal use of the equipment, an air source pressure controller is installed at the air inlet of the equipment, and the pressure has been adjusted before the equipment leaves the factory. The factory setting pressure is about 0.3Mpa. If the pressure is too low, the pre-tightening force is not enough when sealing the can, that is, the supporting force is not enough, and the can can not be sealed well. Therefore, the car cannot be driven when the pressure is lower than the set pressure. Of course, the user can also readjust the pressure. Just adjust the two small bolts on the top of the pressure controller. The specific debugging method is as follows.

The left bolt adjusts the switch pressure difference; the right bolt adjusts the upper limit switch value of the air pressure.

Their relationship is: upper limit switching value-switch pressure difference = lower limit switching value.

*Example: The working air pressure is required to be maintained between 3kg and 5kg.

A: Turn the right bolt to make the pointer point at 5kg (0.5Mpa) on the scale. This value is the upper limit switching value.

B: Turn the left bolt to make the pointer point at 2kg (0.2Mpa) on the scale. This value is the switch pressure difference.

C: Calculate according to the above formula: 5kg－ 2kg=3kg (this value is the lower limit switching value). The car cannot be driven if the air pressure is less than 3kg.

The metal tin cans is a kind of packaging that we all like. It can play the role of moisture-proof, waterproof and anti-fall, and can also be stored for a long time. And we often print LOGO or slogans on the surface of the metal. In this way, as the gift is stored in our company The logo can play a role in long-term publicity. So how many methods do you know about the production of metal cans?

After printing, metal substrates generally go through two processes: glazing and forming. The purpose of the gloss oil is to protect the ink film, increase the gloss of the printed matter, make the product more beautiful, and enhance the ability to withstand the bending and mechanical impact during the can-making process. It should be pointed out that since the manufacturing of metal packaging products is carried out in an automatic assembly line, printing is a key process in which the substrate is often molded, and in the molding process of the product, a considerable part of the process is actually It was done before printing. In order to ensure the integrity of the system, this article does not make a strict distinction between pre-press and post-press processes.

1. Stamping process. The metal packaging container, whether it is a box or a can, is mostly formed by the principle of metal stamping through two major processes of separation and plastic deformation from the perspective of the forming process.

Separation process is a stamping processing method that separates the stamping part and the sheet material along the required contour line and obtains a certain cross-sectional quality. The separation process often includes operations such as cutting, blanking, punching, notching, trimming and trimming.

Plastic deformation process is a stamping processing method that makes the stamping blank undergo plastic deformation without destroying it, so as to obtain the required shape and dimensional accuracy. Usually there are three types of bending, stretching and forming. Bending includes pressing bending, crimping, twisting, bending, rolling, bending, drawing bending and other operations; stretching is mainly deep drawing and thinning and deep drawing; there are many forming methods, including turning, flanging, flaring, Narrowing, forming, crimping, bulging, spinning, shaping, and leveling operations.

2.Canning process. The traditional production method of metal packaging cans is: first cut the iron sheet blank into squares, and then cut the blank

The material is rolled into a cylinder (i.e. cylinder) and then the formed longitudinal joint line is soldered together to form a side seal. One end of the cylinder (i.e. tank bottom) and the round end cover are mechanically formed into a flange and rolled Pressure-sealing (this is the double crimping seam) to form the can body; the other end is filled with the product and then the can lid is sealed. Guangzhou round can processing factory is called three-piece can because the container is composed of three parts: bottom, body and lid. This can-making method has basically not changed much for more than 150 years, except that the degree of automation and processing accuracy has been greatly improved. In recent years, the welding seam of the side seal has been changed to fusion welding.

If you need to know more, please click the following link to understand the production process:

A new canning principle appeared in the early 1970s. According to this principle, the can body and the bottom of the can are a whole, which is stamped from a round flat blank and sealed after being filled into the product. This is a two-piece can. There are two forming methods for this can: stamping-thinning and drawing method (ie, punching and drawing method) and stamping-re-stamping method (ie, deep drawing). These technologies themselves are not new. The punching and drawing method has been used to make bullet casings as early as the First World War. The difference in can making is the use of ultra-thin metal and the high production speed (annual output can reach hundreds of millions).

If you need to know more, please click the following link to understand the production process:

People’s life and production are inseparable from packaging, because packaging has multiple functions. Why do biscuits generally use tinplate cans? Can we understand from the following aspects?

(1)Protection function. The protection function of the packaging is the most basic and the most important function. It should protect the product from damage and loss. In the circulation process of goods, the factors that cause harm to them are: environmental conditions, such as temperature, humidity, gas, radiation, microbial insects, rodents, etc., which may damage the packaging and harm the product; human factors, the goods are transported, During storage, due to careless or improper operation, the goods are damaged by shock, vibration, or fall, or they are crushed due to too many stacked layers. Therefore, according to factors such as the shape, characteristics, transportation environment, sales environment and other factors of different products, the most appropriate materials, reasonable design of packaging containers and technologies should be given to the packaging to provide sufficient protection functions to protect the safety of the products inside, and the special use of dangerous goods Packaging, pay attention to prevent its damage to the surrounding environment and people and creatures.

(2)Convenience function Modern product packaging can bring many conveniences to people, which plays an important role in improving work efficiency and quality of life. The convenient function of packaging should be reflected in the following aspects.

①Convenient production For mass-produced products, packaging should meet the needs of mechanization, specialization and automation of production enterprises, taking into account resource capacity and production costs, and increase labor productivity as much as possible.

②Convenient storage and transportation For the quality and volume (size, shape, etc.) of each packaging container, the convenient loading and unloading of various transportation vehicles should be considered for stacking; also consider that the quality of manual loading and unloading of goods generally does not exceed 40% of the worker’s weight (limited to about 20kg), etc .; at the same time, it should also consider the storage and stacking method of storage and transportation into warehouses, shops, and residences during circulation Indoor decoration and storage during the process.

③ Convenient use of suitable packaging should make consumers feel convenient when opening, using, storing and storing. Such as carton sealed with adhesive tape, cans, spray packaging, portable packaging, etc., in a concise language or icon, to explain the precautions and methods of use to consumers to facilitate the use.

④Convenient handling means that some packages have the function of repeated use. For example, the recycling of various materials, glass bottles for beer and beverages, and the recycling of packaging waste (paper packaging, wooden packaging, metal packaging, etc.) are convenient for environmental protection and conducive to resource conservation.

(3) Selling functional packaging is like a silent salesman. Good packaging can attract consumers ‘attention and stimulate consumers’ purchases. The sales function of packaging is achieved through packaging design. Excellent packaging design, with its exquisite shape, reasonable structure, eye-catching trademarks, decent text and bright colors and other artistic language, directly stimulates the purchase desire of the consumer lunch, and leads to purchase behavior. Some packaging also has potential value, such as beautiful and suitable packaging containers, which can be used to hold other items after the contents are used up. Uniquely shaped containers and beautifully printed decorations can not only increase the selling price of goods, and promote the sale of goods. At the same time, it can also be collected as an art appreciation.

To understand the price of canning equipment, first we need to know what specific canning equipment is required for a complete canning production line. Let us briefly understand the specific equipment.

Three-piece can production line equipment classification: Three-piece can production line manufacturing equipment is divided into cutting equipment, forming welding equipment, drying equipment, rolling equipment, slitting equipment, necking equipment, embossing molding equipment, turning equipment Side equipment, capping equipment, can sealing equipment, leak detection equipment, full internal spray equipment, drying equipment, stacking equipment, packing, etc.

I.Empty can preparation equipment mainly includes: cutting equipment, parting equipment, coating scraping equipment

① Cutting board equipment is used to cut the large sheet of tinplate into pieces of the size required for canning or punching. Its process flow is as follows:

Feeding and cutting → finishing

② Scribing equipment is a device for scoring the uncoiling line or slitting line on the can body blank. Its role is to draw a trace of a certain depth on the cut can body material in order to separate the finished can body from the scribe line.The process is as follows:

Feeder → Single sheet feeding and feeding → marking → selection

Scribing equipment is available in automatic or semi-automatic stand-alone form, as well as in combination with can body welding and forming machines.

③ The coating layer scraping equipment is used to partially scrape the surface coating of the cut can body sheet to facilitate resistance welding (the equipment is not needed to leave the paint plate empty). The process flow is as follows:

Feeder → Single sheet feeding→ Scraping → Stacking

The price of the preparation equipment is about: USD10000-70000

Second, can body forming welding equipment

(1)Classification of can body forming and welding equipment

The price of can body forming and welding equipment is about: USD10000-50000

Third, the can body embossing, expanding equipment

(1)Characteristics of embossing and expanding of the can body The embossing or expanding of the can body can be changed into various cross-section (longitudinal or cross-sectional) shapes.

This can is a fancy can. Pattern cans can be divided into two types: one type is round, which is characterized in that the shape of the mouth of the lid keeps the original shape of the round can, and the middle part of the can can be changed in shape according to user requirements, such as barrels Shape, drum shape, vase shape, square, polygon, cone, etc., this type of can is called an embossing can (shapping fancy can); another type of can is shaped, which is characterized by a non-circular lid shape, and The shape of the can body and the lid are basically the same. Common types of cans are: square, rectangular, polygonal, trapezoidal, pear (horseshoe), oblate, oval, etc. These cans are called irregular cans.

During the expanding process, the shaped cans body was slightly stretched, and the stress on the metal reached the elastic limit of the material. Before the occurrence of resistance welding, the expanding process of the shaped cans cannot withstand such a large expanding force, so the formed shape is not flat. The body of the embossed can has a large tensile force, and the stress on the metal exceeds the elastic limit of the material, and a large tensile deformation occurs. The volume of the tank body after embossing can be increased by about 20% compared with the original can body. Since the embossing can and the new-shaped shaped can both need to bear a large expanding force, only the welding seam (such as resistance welding, laser welding, etc.) can meet this expanding requirement. Because the middle section of the embossed cans has a large tensile deformation, the outer surface of the printed iron and the coating of the inner side have higher requirements to prevent damage to the printing and coating caused by this deformation. In addition to the expanding method after welding, there are also bending methods before welding. This method is often used in the can body soldering process. The can body is directly pressed into a special shape and then the can body is welded.

   The price of the embossing and expanding equipment of the can body is about: USD20000-80000

Fourth, repair coating equipment
Repair coating equipment is a device that coats the weld with a protective layer that does not damage the contents and is resistant to corrosion. After welding, there is no tin layer at the weld.The inner and outer welds are in direct contact with the contents or the atmosphere and are susceptible to rust.Especially canned foods that have been processed at high temperatures and have long-term storage with high levels of acid and sulfur. There are more stringent requirements, so the inner and outer welds must be repainted. The recoater device consists of a cam body conveying system and a recoater system. The can body conveying system generally has two magnetic conveyor belts, which can continuously, smoothly and accurately feed the can body into and out of the coating area after welding.

The coating equipment is roughly classified as follows:

The price of recoating equipment is about: USD5000-20000

Five, drying equipment
The coating applied on the can body must be cured by heating to make the solvent volatilize, so that the monomers can be polymerized and the anti-corrosive performance can be obtained.

Especially for foods sterilized by high temperature, the curing requirements are higher. When curing, the temperature of the surface of the can body must not be higher than the melting point of tin, and the coating must not have blistering or scorching. The curing time must be sufficient. The drying equipment consists of a can conveying system and a heating system. The conveying system generally uses chains, steel belts or belts, etc., with the aid of magnetic adsorption, the cans body is sent into and out of the heating zone. The conveying system is divided into linear conveying and circular conveying, which saves space.

    The price of drying equipment is about: USD5000-15000

Six, can rolling, parting equipment
The function of the cans body rolling ribs and parting equipment is to roll the reinforcing ribs on the welded can body or cut the can body into two or three sections. A single rolling rib slitting machine cannot complete these two processes at the same time. If necessary, replace the rolling rib die or parting die and configure it as a rolling rib parter or parter. Some combination machines have multiple stations, which can be equipped with different molds at the same time to complete the rolling ribs, parting, flanging, sealing and other processes, the principle is the same.

      The price of can body rolling and parting equipment is about: USD8000-30000
Seven, can necking, flanging equipment

(1)The necking machine reduces the diameter of the end of the can body, which can reduce the material consumption of the can lid, and is conducive to stacking storage and transportation of cans.

Beautiful shape. Necking is divided into ordinary single necking, large single necking, two necking, three necking, four necking and so on.

The necking method is divided into a rolling method and a shrinking method. The rolling method is a pure rolling with internal and external mold rotation, while radial feeding. Rolling method can be completed when necking and flanging thin iron necking at the same time, easy to wrinkle. The shrinking method is directly extruded by opening and closing the inner and outer molds with a cone, and is formed in one operation. Adopting multiple necking requirements: necking is even and smooth, no wrinkles, no oxide film and coating film are peeled off at the weld seam of the can body, there is no mechanical wiper or multiple stations for single shrinkage on the inner and outer surfaces of the can body, and a second shrinkable can , Three shrinkable cans, four shrinkable cans.

(2) Flanging machine: Flanging machine is a device that prepares the process of trauma and necking by clearing the two ends of the can body to the edge of the desired shape and size through the extrusion of the flanging die. Flanging methods are divided into crush type, rolling type, spinning type and plate edge type. The crush flanging uses a flanging die to extend from both ends, and hits the edges of the two ends of the can along the axial direction of the can body to form the flanges at both ends of the can body. Rolling flanging and rolling necking are completed in one step at the same time. The principle is the same as that of rolling necking. Spin-type flanging is divided into two types: one is the active rotation of the flanging roller, which has many forms; the other is the driven rotation of the flanging roller, and the two motion principles are the same. The flanging die is composed of a plurality of flanging rollers. The flanging die is extended from the two ends of the can body, and is fed along the axial direction of the can body while rotating. The two ends of the can body are squeezed to gradually complete the flanging. Flanging beads are arranged along the circumference according to a certain rule. The larger the diameter of the can body, the more the flanging roller are, and the deformation is uniform and slow. Therefore, the flanging quality is good, which is especially suitable for high-speed and thin-tin can body flanging. The flanging-type flanging is used for flanging of special-shaped cans. The outer mold holds the can body, and the inner mold moves from the inside to the outside to complete the flanging.
Flanging requirements: The flanging must meet the size, uniform and neat, and there must be no uneven width, excessive or insufficient flanging, cracks (especially at the weld), inward folds and off angles of the flanging, and peeling of the coating film.

     The price of can necking and flanging equipment is about: USD8000-30000
The above prices are for your reference. The specific prices need to be determined according to the actual supporting conditions.

Main properties of metal packaging materials

(1) Advantages
①The metal packaging material has high strength. Therefore, the wall thickness of the packaging container can be very thin, so that the weight is light, the strength is high, and it is not easy to be damaged.
For storage and transportation, it has good protection for commodities.

②The metal packaging material has a unique luster, which is convenient for printing and decoration, and makes the appearance of the product beautiful and gorgeous. In addition, metal foil and gold-plated film are ideal trademark materials.

③Metal packaging materials have good comprehensive protection performance. Metals have low permeability to water and gas, and are opaque, which can effectively avoid harmful effects such as ultraviolet rays. It has good comprehensive performance and can maintain the quality of the goods for a long time.Some packages are valid for up to two years.

④ Metal packaging materials are rich in resources and have good processing performance. The recoverable amount of steel on the earth is 1294 × 10 ° t, ranking first, followed by aluminum, which is 68 × 10 ° t. Metal packaging materials can be processed with different methods to produce containers of different shapes and sizes.
⑤The production of metal cans has a long history and the process is relatively mature. Now it has automated production and high production efficiency.

2) Disadvantages
①Pb and As in metals and solder easily penetrate into food and contaminate food; in addition, metal ions will also affect the flavor of food.

②When the metal container uses phenolic resin as the inner wall coating, if the processing technology is improper, it will also affect the quality of the food.
Main properties of several major types of metal packaging materials

3.Steel
With rich steel resources and low production costs, it ranks first in metal packaging materials. The main properties of steel used as packaging materials are good comprehensive mechanical properties and certain corrosion resistance. In order to meet the requirements of comprehensive mechanical performance, the packaging steel plate mainly uses low-carbon thin steel plate, which is used to manufacture containers, ordinary steel drums, and can also be used as a strapping material, which is widely used in transportation packaging. In order to ensure the requirements of corrosion resistance, tin, chrome, aluminum, galvanization and the application of corresponding coatings can be carried out on the basis of low-carbon thin steel plates to improve their corrosion resistance. Can also be made into sales packaging containers, widely used in food, medicine and other packaging.