Inspection Of Automatic Packing Machine

When the automatic packing machine factory overhauls the vacuum packaging machine generator, the excitation circuit should be disassembled to repair the various components.

Purge the dust on the de-excitation switch with compressed air, check whether the connecting wires of the components of the automatic packing machine are intact, the connecting bolts of the connecting wires should not be loose, and the operation of the operating mechanism should be flexible. The singeing of the main and auxiliary contacts shall be carefully trimmed with a file to ensure that the contacts and the lead wires shall be free from discoloration.
Automatic vacuum packing machine generator rotor discharge resistance and magnetic field discharge resistance are generally installed together with the de-excitation switch, should be checked for no overheating, discoloration and other phenomena. When the DC resistance value is compared with the previous data, the value differs by no more than 5 percent. After the overhaul, the above components shall be subjected to a 1 kV 1 minute AC withstand voltage test, and the insulation resistance value is greater than 1 megohm.

For the generator of the packaging machine to clean the magnetic field varistor, the operating mechanism of the magnetic field varistor should be closely coupled, the screw is tightened, and the contact between the moving and static contacts is good. The surface of the static joint is smooth and there is no trace of damage, otherwise it will be sanded with a sandpaper or flattened with a file. The moving contact should be installed firmly and with good elasticity.
The bag vacuum packing machine measures the value of each piece of resistance. The change of the resistance value should have a certain regularity, and the difference should be no more than 5 percent when compared with the previously measured value, and then exchange 1 kV for 1 minute. Pressure test, the insulation resistance should be greater than 1 megohm after the test.
Check whether the brush holder insulation of the slip ring is good. It should pass the 2 kV 1 minute AC withstand voltage test, and the insulation resistance value should be greater than 1 megohm. The brush holder and the spring are required to be repaired. The gap between the brush holder and the slip ring should be 2.5~3 mm, and the gap between the brush and the brush should be 0.1~0.2 mm. The brush should also be in accordance with the above exciter. The requirements are ground and installed.
When the vacuum packing machine generator is under minor repair, the insulation resistance of the stator winding should be measured. When the repair is small, the rotor is not drawn. If it is not necessary, the end cover is not opened. If the end cap is open, the stator winding end, the rotor guard ring, the fan, etc. should be inspected and cleaned (purged with compressed air). When the hydrogen-cooled generator is under minor repair, the hydrogen cooler should be cleaned. When the water-cooled generator is under minor repair, the forward and reverse flushing of the rotor and water circuit should be carried out.
Contact to Focus Machinery Co., Ltd

Can rfid passive tags be recycled?

         Passive RFID tag systems are now widely used. As a new technology for the Internet of Things, this technology is particularly prominent in logistics, supermarkets, libraries, retail and automation. However, many people do not know much about passive RFID tags. Can passive RFID tags be recycled?

        At present, there is still a difference between RFID active tags and RFID passive tags. Passive tags can be reused if they are built in plastic or in other protective materials.

        If rfid passive tags are forcibly removed from the goods, this may cause damage to the connection between the chip and the antenna, and the tags may fail. These tags cannot be pasted elsewhere, but if the tag is wrapped with protective material, it can be used For the supply chain, it can also be placed on other objects through plastic rings. Such tags can be reused, similar to electronic anti-theft tags.

       The difficulty of recycling labels is managing the collected data. Reuse requires ensuring that the serial number is no longer associated with the item and associated with the new tracker after removing the label. This sounds simple, but if the label is used in hundreds Thousands of different goods are quite troublesome. To ensure that each label can be associated with the correct item every time, you need to establish appropriate procedures and management.

         Passive RFID electronic tags In the entire communication process, after the chip stores an object information, it can generally be reused by clearing the chip information. This is also an important reason for passive RFID tags to slowly replace traditional barcodes.

Three points to note about LSR injection molding machine

            There are many differences in the rubber processing operation between LSR injection molding machine and traditional thermoplastic injection molding machine. LSR is very different from traditional thermoplastic materials in terms of shrinkage, demolding, mold materials and temperature control, etc. Difficulty LSR is greater than ordinary thermoplastics.

            (1) To fully mix liquid silica gel, precise mixing ratio is required. LSR is a two-component raw material of A and B. Before injection molding, it must be mixed according to a precise one-to-one ratio. If this colored liquid is also a silicone product, then the color paste ratio needs to be accurately controlled. In addition, the static mixer is a key part of LSR injection molding. After the mixture is completely uniformly mixed, the A and B glues can only be completely cured and molded into the mold.

           (2) For the sealing and temperature control of injection molding machine parts, because the viscosity of the LSR is low, it is necessary to consider the backflow and leakage of the material, so the screw must be sealed. The mold is heated during the LSR forming process, so in order to prevent the LSR from solidifying, a water-cooled nozzle can be used to ensure a low temperature.

           (3) For finished product control during injection molding, the parting line generally considers the position and accuracy of the parting line in advance, which is helpful to avoid entrainment and welding air of the finished product to avoid burrs.

Fabric sharp sofa, leather sofa and wooden sofa, which is better?

The house decoration, the living room is a place that can't be ignored. We have to consider the TV background wall, pay attention to the sofa background wall, and don't forget the sofa. How to choose the living room sofa?
1, fabric sharp sofa
Fabric sofas are the choice of many families, especially the popular linen fabrics. The fabric sofa is simple in shape, refreshing and comfortable, suitable for a variety of decoration styles. Cloth fabrics are not resistant to dirt, they are easy to stain, and it is not convenient to clean. It will fade after a long time. If you wash too much, it will look old. Fabric sofas have many colors and need to be more accurate in color. Generally speaking, it is recommended to choose a light color system, it looks more advanced, you can also use some bright colors to embellish, which is more style. For a small family, it is recommended to choose a high-corner fabric sofa, which will appear to be a wide space.

2, top grain leather sofa
Leather sofas are more graded and more expensive. The leather sofa is comfortable to sit and easy to clean everyday. However, the leather sofa is slightly delicate and easy to be scratched. If you have children at home, or if you have pets, it is not recommended to use a leather sofa and scrap the set in minutes.
The texture of the leather sofa is very good, giving people a sense of wealth, generally suitable for European and American styles of decoration, generally suitable for large-scale selection. The leather sofa is well cleaned, but it must be maintained regularly, otherwise it will not be durable.

3, suede sofa
The suede sofa is a branch of the fabric, the surface is delicate and soft, and the touch is comfortable. However, this type of sofa has a tendency to fall down as the use time becomes longer, and the durability is not high.
4, wooden sofa
Undoubtedly, this kind of sofa is suitable for Chinese style, classical temperament, and overall simple and simple atmosphere. It is a must for Chinese decoration. The durability is absolutely very good, that is, the comfort is poor.
Fabric sofas are moderately priced and more optional. Leather sofas, suede sofas and wooden sofas are more expensive and more style-conscious.

Regarding the rain led waterproof power supply, these little tips need to be kept in mind!

Switching power supply factorys are now used in a wider range of applications, especially in high-tech applications, which promote the development of high-tech, and are very helpful in saving energy, saving resources, and protecting the environment.
The rainproof switching power supply comprises: a box body, a switching slim LED power supply, a switching power supply adapter board, and the box body thereof is composed of a bottom shell and a surface cover. The bottom case is a U-shaped end face formed by the bottom plate and the two side plates, and the inner side of the bottom plate is provided with at least one screw fastening groove for fixing the switching power supply adapter plate; on the two outer sides of the side plate A cover chute slidingly mating with the bottom case chute is further provided, and an inner circular groove capable of fixing the upper end cover and the lower end cover is provided in a portion near the four corners of the bottom case.
First, the positive pole of the V+ switch, the negative pole of the V-connector, and then the L and N are connected to the position of the AC220V terminal, which is very simple and convenient.
Part of the purchased Switch Power Supply always burns out. First check if the load is faulty. Because the switching power supply is generally outdoors, the parts that are blown by the wind are prone to problems. Then we need to see if there is a bad contact in the load and ensure that there is no sparking. If the above two problems do not occur, then see if the aging is rusting. Replace parts of this type if there is a leakage.
When purchasing the rain-proof switching power supply, we must choose a good quality and guaranteed power supply. When selecting the power supply board, pay more attention to it to avoid the situation of sub-filling. The inferior products on the market use half-wave lead plates. This will make the LED Waterproof power supply have a shorter service life, and the regular service life will be longer. At the same time, many inferior products are made of second-hand components. Once they are used for a long time, they will explode. It is a very dangerous situation, so we must choose products with guaranteed quality.