The bag making machine is a machine for making various plastic packaging or other material packaging bags. Its processing range is various sizes of plastic or other material packaging bags with different thickness and specifications. During the use of the bag making machine, there will be many problems. This article will help you to eliminate the use of the bag making machine.

1. The cold cutter of the flat mouth machine cuts continuously

When the cold cutting knife of the flat machine is always cutting continuously, check whether the cutting knife is sharp and whether it needs to be re-sharpened; check whether the balance of the upper and lower knives is appropriate balance.

2. The flat mouth machine cuts three or more strips, and the size of the bag is different.

Put a layer on the rubber roller behind the thin film, so that it can be evenly mixed with other materials.

3. The spring of the flat mouth machine is broken

If the self-adhesive strip is not in place, if it is tilted up and rolled into the spring, the spring will break, so the self-adhesive strip must be pasted properly during operation. Another reason is that the material is not neat or stuffed into the rubber roller, causing the spring to break.

3. There is a big difference between the two sides of the edge sealing of the bone bag making machine
It is necessary to adjust the aluminum pressure roller well, and adjust it to press both sides of the sealing edge, so as to avoid this situation.

4. The self-adhesive strips cut by the side sealing machine often stick to the conveyor belt

The self-adhesive strip is misplaced and stuck to the conveyor belt. It is necessary to adjust the self-adhesive position of the edge correcting machine behind.

5. There are burrs on the OPP cutting edge or the explosion-proof edge will be rotten

The hot knife and the suction arm are not adjusted properly. Normally, the hot knife cuts off by 2 cm, and the suction arm sends the material out.

6. The finished products cut out by the side sealing machine are of different lengths

The rubber roller slips because the pressure spring is not compressed, or the clamping plate behind is too tight, and it needs to be adjusted properly.

7. The flat mouth machine is blocked in front of the cold cutter

In this case, it should be that the bag is too strong, use a rubber band to attach a small piece of paper to the screw on the knife beam, cut out the tape and snap the bag down at the same time.

8. The output and winding thickness of the film blowing machine is uneven, and one side is thin

It needs to be wrapped around the electronic frame on the thin side until it fits.

9. The feeding of the printing bag is not smooth, and the electric eye is not sensitive enough

First check whether the electric eye is used correctly. The sensitive reaction of the electric eye to the color has a certain degree of attention. If the bag is a single color, use blue, and use red for heavy color. Red can be used for single color and heavy color. The roller under the electric eye of the edge correcting machine should be sprayed black. If the color of the bag is single and heavy, it is best to use a white background.

10. The new machine has not been cutting bags for a long time, and the cutter keeps cutting thinner films, or cutting at a certain place

This situation may be caused by the fact that after a period of running-in of the upper knife beam slider, the gap between the slider and the copper pad is too large, which in turn causes the cutter to cut continuously. The top seam (M6 inner corner) of the copper pad can be adjusted until the slider of the upper knife beam cannot be shaken by hand, but it cannot be adjusted too tight.

When the machine is turned on and cuts 15-20 sheets per minute, there is no obvious vibration of the upper knife beam, which proves that the gap is just right. In addition, the spring pressure of the upper beam can be adjusted.

11. The seal of flat mouth machine and R machine is not firm

(1) Check whether the hot knife is stuck: the hot knife is not sealed and cut smoothly, which will cause the seal to be sometimes firm and sometimes not firm.

(2) Check whether the knife edge is deformed or bent due to heating. The inspection method is to turn the hot knife to the bottom position. When the hot knife is about to touch the silicone roller or the silicone plate, use the light transmission method to judge whether the hot knife is bent. If it is bent, repair the flatness of the knife edge.

(3) Check whether the electron passing through the film is too strong. Test it with a film that has not passed through electrons. If it is sealed, see if there is any obvious change in the seal. If so, it proves that the film passing electron is too strong. It is recommended to change the material.

To sum up, it is inevitable to encounter various problems in the process of using the bag making machine. Don’t panic when encountering problems, find the cause of the problem, and solve the problem fundamentally, so as to effectively improve work efficiency.

The square bottom valve bag was born in the idea of ​​convenient freight transportation and has a history of 100 years. It can be closed by itself at the valve bag after filling material, and the appearance is brick-shaped. Shows the unparalleled advantages of other bags in the transportation of goods. For example, it can realize bag picking by manipulator, automatic quantitative canning, self-closing valve bag, automatic palletizing, saving storage space, square appearance, clear sign, and improving the working environment of canning, especially for powder products, which greatly improves the working environment. The advantages.

The materials for making square bottom valve bags first started from paper, then developed to paper-plastic composite bags, and then to film-coated plastic woven bags. The evolution of these materials is a product derived from the market environment and market demand.

The square bottom valve bag is especially suitable for filling powder and granular products. Its valve bag technology includes: inner valve bag, outer valve bag, and extended valve bag, and the customization is flexible and changeable; it also solves the storage problem for many years, making the Its stacking is higher, which saves more storage space, and is beautiful and tidy.

Plastic woven square bottom valve bag performance

Plastic woven square bottom valve bag can effectively improve the quality of cement, it has anti-drop, anti-leakage, moisture-proof and other properties. With the continuous deepening of the industrial automation process of cement enterprises and the further emphasis on the quality of cement packaging bags, the quality and performance requirements of plastic-woven square bottom valve bag cement bags are getting higher and higher, mainly in: mechanical properties, that is, strong Strong, anti-dropping, and able to handle long-distance transportation. Such as moisture resistance and good sealing performance, ensure that the product will not be damp during storage and transportation, the product will not leak, and will not cause cement loss.

In terms of automation function, it can be filled efficiently, quickly and accurately. At present, the all-plastic square bottom valve bag has been widely used in cement enterprises at home and abroad. It is characterized by fast filling, neat and beautiful appearance, good sealing performance, exquisite printing, large packaging volume, and stand-up packaging, which is very suitable for stacking. transport operations. With the automatic filling of the packaging machine, the valve port on the top can achieve the effect of automatic sealing after the cement is filled, saving time and effort.

Advantages of plastic woven square bottom valve bags

The plastic woven square bottom valve bag is produced by a special square bottom valve bag making machine. It is produced by heat sealing, using pp woven bag tube with lamination, and is a low-cost square bottom valve bag suitable for automatic packaging processed by heat sealing production process. The upper and lower sealing of this square bottom valve bag does not require any sewing. Wire. Instead, a stable heat-sealing is performed with the coating layer of the woven cloth. The film on the bottom of the bag, as well as the film on the valve flap and back cover, are softened by hot air and then heat sealed together by pressure. The square bottom valve bag production line changes the four separate production and processing processes of cutting, printing, valve opening, and sewing, improves production efficiency and product quality, and saves a lot of manpower and materials.

No sewing is required in the production process, which not only reduces the production process, but also saves the sewing thread and the kraft paper seam. Fundamentally avoid the seam head and paper edge entering the cement concrete, ensure the construction quality, and keep the site environment clean. It is beneficial to the recycling and utilization of packaging bags after use and the requirements of protecting the ecological environment.

Using the latest punching method and micro-hole punching technology, the hole diameter is small, and the density of the hole is relatively large. The hole diameter and density can be adjusted according to the canned exhaust conditions to reduce the problem of excessive loss of bag body strength caused by punching. . In the filling and transportation process, the phenomenon of ash spraying and ash leakage is greatly reduced, the filling site and the loading and transportation environment are improved, the loss and waste of cement are reduced, and the development requirements of energy saving and environmental protection are met. The square bottom valve bag packs cement, making the filled bag square, improving the stacking shape, which can improve the level of product packaging, good appearance and quality, and is conducive to expanding the market influence of my country’s cement products.

In fact, the most important thing is that the plastic-woven square bottom valve bag can help cement enterprises to realize that the cement filling, stacking, storage, loading and transportation processes are all automated mechanical operations, which can reduce a lot of human resources and save costs.

Valve bags are very popular in the domestic market, especially in the small commodity wholesale market and the food industry. Many people who make it do not know that this kind of bag is made by a special valve bag making machine. What is the working process of the valve pocket bag making machine, let’s learn more about it together!

The working flow of valve bag making machine

1. Hopper feeding

The bag making machine is a hopper on which the powder is transported to the packaging machine by the feeder throughout the day. Device Control. The sealing paper roll is driven by the guide roll to the lapel forming machine. After bending, it is lapped into a cylinder with a longitudinal sealer. The material of the bag making machine is automatically measured and then loaded into the bag. The transverse sealer intermittently pulls down the bag cylinder while cutting off the heat seal to form a flat bag with overlapping longitudinal seams on three sides, and seals the seal of the bag.

2. Cutting

How to carry out the cutting of the bag making machine, the metal cutting process of the bag making machine is actually very similar to the metal extrusion process. When the gravure printing machine cuts plastic materials, the material begins to elastically deform under the action of the tool. As the tool continues to cut in, the stress and strain inside the metal continue to increase. When the stress reaches the yield point of the material, plastic deformation begins; Using computer control, the advanced (servo) fixed-length system makes the sealing and cutting size error small, and the electric eye is installed to make the printed pattern position. The length of the bag can be adjusted by computer numerical control. If there is a problem with the printing bag, the machine will automatically stop and give a warning sound.

3. Glue and heat sealing

After gluing, the bottom structure should be heat-sealed together. After gluing, the bag tube should be glued and then the bag tube should be formed, pulled, cut, and distributed. During the process, it is necessary to check whether the heat-sealing temperature of the product is appropriate (wrinkling of the bag when the temperature is overheated). , the temperature is too low, the package is not hot). Product specifications, thermal locations, thermal coupling wire specifications, and cutouts should also be checked frequently for compliance.

The above is the whole introduction of the working process of the valve bag making machine. The kraft paper valve bag is the preferred bag type popular in the world. The valve bag has the advantages of low cost, improved loading speed, high firmness, and improved stacking stability,realize automatic bag filling.

At present, there are generally two types of packaging bags in packaging machines, one is an open bag packaging machine and the other is a valve bag packaging machine. Their packaging machines are also varied. Next, I will share with you several valve bag packaging machines with multiple functions.

First of all, the valve bag packaging machine first appeared in front of the public is the cement packaging machine, that is, the impeller packaging machine. The materials suitable for packaging are powders and small particles with good fluidity. It is also the first generation of valve bag packaging machines. Its disadvantage is that the measurement is not very accurate, the error is relatively large, and the dust is relatively large during the working process.

The second is the small screw packaging machine. The valve type small screw packaging machine is suitable for packaging powders with good fluidity, small particles and mixed materials, which can be well packaged, with high precision and less dust. This type of packaging machine is more popular with customers, and it can be well packaged for general materials.

The other one is another style of valve port packaging machine. It can pack a packaging machine for pigments such as chrome oxide green. It will not be blocked or out of materials during the repackaging process. This improved packaging machine is suitable for clogged materials are easy to pack.

This valve port type packaging machine is also a packaging machine that has been designed and modified. It is aimed at the packaging of various types of titanium dioxide. In the process of repacking, there is a problem that the material is blocked and the material is not discharged.

Then there is a double-screw packaging machine for packaging ultra-fine powder. This packaging machine is designed with an impeller and a small screw, and is aimed at powder materials.

Finally, let’s introduce the most outstanding valve bag packaging machine – negative pressure packaging machine. Its appearance is simply a typical representative of the blue and the blue. It can package carbon black and silica and some nano-level materials can be packaged. Just add a vacuum chamber to the outside of it, so it’s easier to pack. It can be said that the negative pressure valve bag packaging machine is the most advanced member of the valve bag family. It has high technical content and has been carefully researched and developed by technical personnel.

These multifunctional valve bag packaging machines bring high efficiency to the majority of users and save a lot of packaging costs.

Bottom paste machine is a device used to produce valve pockets. It is usually used together with drum making machine. Bottom paste machine is mainly designed and manufactured by photoelectric, electromechanical and pneumatic integration technology. The working process is mainly controlled by photoelectric PLC automatic control system program. Finish.

The bottom gluing machine is mainly responsible for unwinding and overprinting the bag body of the valve pocket, and the bottom gluing machine is responsible for the sealing of the valve pocket. Glue, turn over the bottom of the bag and other processes to jointly produce the valve bag. The bottom paste machine can realize automatic feeding, gluing, transportation and other processes, instead of manual operation, which greatly improves the production efficiency. At the same time, it can be more convenient and save some raw materials.

Because the bottom paste machine is completed by PLC photoelectric program automatic control system, its feeding speed will not be limited by the structure, and it will change with the speed up and down of the frequency modulation motor.

The installation and debugging steps of the bottom paste machine are summarized as follows:

1. Before installing the bottom gluing machine, you should carefully check the work order and samples, determine the glue used for the gluing box, and prepare it;

2. Adjust the width of the bottom baffle to be pasted, the two sides should be parallel, and just put down the semi-finished color box to be produced, the distance between the two side baffles is less than 1mm from the color box, and then adjust the limit bolts to ensure that each product to be pasted passes smoothly. and no fetters appear;

3. Adjust the slope and height of the bracket in the bottom area to be pasted to ensure that the pasted products can pass smoothly without other obstacles. After pressing, adjust the auxiliary guide rail and flow wheel to make the size suitable for the specifications of the color box to be pasted;

4. Adjust the bottom paste belt and bottom paste guide rail, and then adjust the bottom paste main machine and the wheel closing pressure to cooperate with the cross of the belt;

5. Adjust the glue tank and check whether the glue in the glue tank is sufficient. The amount of glue should be immersed in 80% of the rubber wheel, and then adjust the glue tank and the glue position;

6. Turn on the power switch, the main motor switch and the vibration switch key. After the machine is adjusted, press the “run” or “inch” key, press the “feed” key to debug the machine, and check whether the machine performance is abnormal, and there is a skew phenomenon. correct it immediately.

7. After the debugging is ok, test 5-10 pieces of the machine first, confirm the position and forming specifications, and then adjust the speed of the machine;

8. When pasting the bottom of the color box, pay attention to the state of the paper at the bottom of the pasting, not over-line, off-line or misplaced, so as not to affect the appearance and forming effect of the color box;

9. First confirm: Strictly follow the first-piece signature method;

10. After the production task of the bottom paste machine is completed, the machine should be cleaned in time to keep the machine clean.

The above is the relevant introduction of the installation and debugging steps of the bottom paste machine. If you need to know more about the bottom paste machine, you are welcome to log in to our official website to browse, or you can inquire.