Solutions to common faults of bag making machines

The bag making machine is mainly used to process and produce packaging bags. It is easy to use and easy to operate, which brings more convenience to people. At the same time, various problems often occur during the use process. , and then we will give you a detailed introduction to the treatment methods for the more common problems.

Main structural advantages of bag making machine

1. The bag making machine mainly uses ultrasonic waves and special steel wheels for processing. The sealed edge does not crack, does not damage the edge of the cloth, and is easy to use;

2. When the non-woven fabric is manufactured by the bag making machine, there is no need for pre-heating treatment, and continuous operation can also be performed;

3. The bag making machine has low cost and high efficiency, which is about 5 to 6 times faster than traditional machines, saving a lot of time;

Common problem

HT120-IIIASF Paper Tube Machine

1. The stepper motor has abnormal noise when it is turned on, and the film cannot be fed.

Processing method:

(1) Check whether the main motor turns correctly and adjust it to the correct direction indicated by the arrow.

(2) Whether the stepper motor driver shows a fault, turn off the main power supply and turn it on again to return to normal.

…

Details can be accessed by clicking here:https://www.lyhuatianm.com/products-information/solutions-to-common-faults-of-bag-making-machines.html

/by

What are the precautions for daily maintenance of linear vibrating screen?

Linear vibrating screen is a kind of vibrating screen, which is widely used in many industries. The equipment is simple to use and has good effect, so it is favored by many users. Although the linear vibrating screen is easy to use, it still needs our careful maintenance during use.

Usually, the linear vibrating screens we see are driven by dual vibration motors. When the two vibration motors are synchronized and counter-rotated, the exciting force generated by the eccentric block cancels each other in the direction parallel to the motor axis, and when the vertical vibration The direction of the motor shaft is stacked as a resultant force, so the motion trajectory of the screen machine is a straight line.

The two motor shafts have an inclination angle relative to the screen surface. Under the combined force of the exciting force and the self-gravity of the material, the material is thrown up on the screen surface and moves forward in a straight line, so as to achieve the purpose of screening and grading the material. In the process of use, the equipment needs frequent maintenance. During the maintenance, the following points need our attention.

Linear Vibrating Screen

1. In the early stage of operation, check the bolts at least once a day to prevent loosening.

2. When it is used again after being left for a long time, the insulation resistance should be measured, which should be greater than 0.5 megohm for the measurement of a 500-volt megger.

3. The vibrating screen and the screen carrier are equipped with special damping rubber, so as to achieve the longest service life. The rubber strip should be properly located between the two, and the damaged damping rubber strip should be replaced.

4. When the rotation direction of the motor does not meet the requirements, adjust the phase sequence of the power supply.

…

For more details click to visit:https://www.hsd-industry.com/news/precautions-for-daily-maintenance-of-linear-vibrating-screen/

/by

How to properly adjust a tractor clutch

The clutch is an essential and important part on the tractor. The clutch gradually engages the engine with the driveline, ensuring a smooth start of the tractor. When the transmission needs to change gears according to the driving of the tractor, the clutch can temporarily cut off the power transmission of the engine to ensure the smooth shifting of the transmission. The clutch also has overload protection, preventing damage from overloading the driveline and PTO by slipping the friction linings.

However, during the use of the clutch, due to natural wear and improper use and operation, the wear of the clutch transmission mechanism and the wear of the friction plate cause the clutch to slip during the operation of the tractor, and the clutch is not completely separated, which affects the normal use of the tractor. Therefore, the clutch should be used correctly during use, and maintenance and adjustment should be carried out in time to reduce the incidence of damage to the tractor clutch and prolong the service life.

1. Correct use of clutch

When driving a tractor, when operating the clutch, the disengagement should be quick and complete, and the engagement should be smooth and soft.

When the tractor is working, do not put your foot on the clutch pedal, let alone control the speed of the vehicle with a half-clutch method. Immediately after the clutch is engaged, take your foot off the pedal to avoid the clutch being half-engaged. Use the clutch reasonably, and do not use the method of slamming the clutch to overcome the trapping, overloading and overcoming obstacles. The tractor should not start with a high gear with a load, it should be in a low gear first, and then change into a high gear after starting.

2. Correct adjustment method of clutch

During the use of the clutch, due to the wear and tear of the parts, the clutch will slip or the clutch will not be completely separated. Therefore, it should be adjusted in time. In order to make the clutch work normally, it is necessary to ensure that there is a clearance of 2-3 mm between the release bearing and the inner end faces of the three release levers. When the clutch pedal is depressed until the clearance is eliminated, the travel required by the lower end of the release rocker arm along the axis of the limit bolt is called “free travel”.

/by

What are the differences between manual shelves and smart shelves?

With the advancement of science and technology and people’s higher and higher requirements for convenience, I believe that everyone has been exposed to such things as intelligent compact shelves. The compact shelves can be divided into intelligent compact racks and manual compact racks. The same feature of both is to save space, Intensive. You can also think that they are the same office equipment product, but in terms of details, there are still quite a few differences between manual shelves and smart shelves. What are the specific differences? Let’s take a look together~

The difference between manual shelves and smart shelves

1. Different advantages
​​
Smart Shelves: Smart Shelves are based on Shelves, with intelligent control as the core, and intelligent reticulated Shelves controlled by manual, electric, and computer controls. They can perform remote operations and perform automatic control in a wide range. The three different transmission modes are independent of each other without any interference. It has automatic positioning, voice control, face unlock, remote control and other functions.
​​
Manual shelving: For manual shelving, as long as you leave a passageway, you can enter it to view relevant files. Its capacity is 2-3 times that of a fixed cabinet, which can greatly increase the space, which means that more documents can be stored; the heavier the file, the more stable it will be, and the more secure it will be.

…

For more details click to visit:https://www.etegreen.com/blog/the-difference-between-manual-shelves-and-smart-shelves/

/by

WHAT IS THE RELATIONSHIP BETWEEN THE SOLUBILITY OF CALCIUM HYDROXIDE AND TEMPERATURE?

Calcium hydroxide is a substance that can be dissolved in water, but its solubility decreases as the temperature increases. Due to the particularity of the decrease in the solubility of calcium hydroxide with temperature changes, many people can’t help asking questions, causing calcium hydroxide The relationship between solubility and temperature What are the influencing factors of this state? With this question in mind, the calcium hydroxide production line manufacturer will introduce the relationship between the solubility of calcium hydroxide and temperature.

THE RELATIONSHIP BETWEEN CALCIUM HYDROXIDE SOLUBILITY AND TEMPERATURE:

1. After a series of tests, we found that during the reaction process, a lot of heat was released, which made the temperature of the solution rise. During the whole reaction process, the mass of water in the solution decreases due to the consumption of part of the water.

2. Due to the decrease of the solvent in the solution and the increase of the solution temperature, part of the solute Ca(OH)2 is precipitated, which makes the quality of the solute in the solution decrease. After a while, as the temperature of the solution decreases, when the temperature of the solution returns to the original temperature, it still cannot reach the original quality.

3. The subtle changes in the quality of the solvent and the solute in the solution cause similar fluctuations in the quality of the solution. The quality of the solution first decreases and then increases a little bit. Compared with the beginning, the quality of the obtained solution is less than that before adding quicklime. the quality of the solution.

4. The temperature of the solution increases first and then decreases, and slowly returns to the original temperature. The obtained solution is still a saturated solution at the original temperature, so during the whole process, the solute mass fraction first decreases and then increases to the original value.

…

For more details click to visit:https://www.ly-gaifeng.com/blog/the-relationship-between-the-solubility-of-calcium-hydroxide-and-temperature.html

/by

COMPARED WITH THE TRADITIONAL CALCIUM HYDROXIDE PRODUCTION PROCESS, WHAT ARE THE ADVANTAGES OF THE CALCIUM HYDROXIDE PRODUCTION LINE?

The traditional production process of calcium hydroxide is mainly based on manual production, but there are many disadvantages. With the development of society, the scale of mechanized production has gradually expanded, replacing manual production, and it has been widely used. Today, the editor of Zhongcai is here. Let me introduce to you the advantages of calcium hydroxide production line compared with traditional calcium hydroxide production process!

DISADVANTAGES OF TRADITIONAL CALCIUM HYDROXIDE PRODUCTION PROCESS

15T installation site of Weinan Yaobai Cement Plant

1. Pollution of the environment

Because it is produced by hand, a large amount of high-temperature steam and dust generated during the digestion process will permeate everywhere, and the pollution radius can reach more than 1,000 meters, causing serious damage to the forests and crops within the polluted area.

2. Affect health

Manual production is labor-intensive, the production environment is poor, and the pollution of dust and steam will affect the physical and mental health of production workers.

3. Low production efficiency

The efficiency of manual production is very low. On average, each person does not exceed 1 ton of finished calcium hydroxide during the day. The production scale is small, the average annual output is only a few hundred tons, and the larger scale is only about 5,000 tons. The demand of pharmaceutical food, petroleum, papermaking and other industries.

4. Unstable quality

Manual production is all judged by the experience of the staff. Everyone’s experience is different, so the quality of the finished products is uneven, sometimes good and sometimes bad, which cannot meet the requirements of the petrochemical industry and the fine chemical industry.

…

For more details click to visit:https://www.ly-gaifeng.com/blog/advantages-of-calcium-hydroxide-equipment.html

/by

How to prevent auditorium chairs from wearing out?

As a public chair with high frequency, auditorium chairs are widely used in auditoriums, conference rooms, theaters, cinemas and other places. Natural wear and tear is very common. How to reduce the wear and tear of auditorium chairs has become an auditorium chair. Manufacturers and customers worry about problems.

First of all, we must understand the wear resistance of auditorium chairs. This should be judged according to the information provided by auditorium chair manufacturers. Different wear resistance properties have different degrees of wear and tear, and the way of wear should also be understood. The wear mainly comes from the wear of the sponge, the wear of the footrest and the wear of the seat back plate.

The wear of sponge is often caused by insufficient load-bearing capacity or excessive load-bearing capacity, causing abnormal wear, failure to rebound, deformation, no bearing capacity, hardening, etc., all of which are sponge wear, and sponge wear is often irreversible. Therefore, to prevent the wear of the sponge, it is necessary to know the bearing capacity of the sponge. This can only be obtained after many tests by the manufacturer. Strictly complying with the data given by the manufacturer is the most effective way to prevent the sponge from wearing.

Multimedia classroom soft chair

The wear of the footrest is often caused by the oxidation of the writing board and the foot. To prevent the oxidation of the foot, it is necessary to maintain the indoor humidity, not too humid, because the metal and oxygen are more easily oxidized in a humid environment, and regularly check whether the foot is rusted. Once the signs of rusting are found, they should be treated with a solution that prevents rusting in time, and the writing board should also be regularly checked for wear and tear, and whether the joints are loose.

The wear of the seat back panel will come from changes in the environment, because the seat back panel is mostly wood and paint. If the environment is too dry and the temperature is high, the seat back panel will crack and lose the paint, and if the environment is too humid, it will become moldy and paint off. , so maintaining indoor temperature and humidity is an effective way to protect auditorium chairs and must not be underestimated.

…

For more details click to visit:https://www.aoyangschoolfurniture.com/aoyang-news/how-to-prevent-auditorium-chairs-from-wearing-out.html

/by

How to choose a single bunk bed correctly? What needs attention?

The use of single-person bunk beds is very common, whether it is in school or in the staff dormitory or even some families may use single-person bunk beds, because this kind of bed can not only meet the use of multiple people, but also compares Save space and maximize the use of small space, so now many people choose to buy up and down the bed, so how should we choose when purchasing? What should I pay attention to when purchasing? How to choose the right one?

1. Ensure safety

Safety is still very important. Regardless of other factors when purchasing, first look at the safety of getting in and out of bed. Only after the safety meets the standard of use, it is not easy to have accidents during use, especially for some children. There will be bumps, so there should be no dangerous sharp edges and edges when getting on and off the bed, and edges and corners should be rounded or chamfered. The design of the corners of the upper and lower beds should be rounded to reduce the damage caused by bumps and ensure safe use.

Cheap Adult Bunk Beds

2. Guaranteed strength

The safety of getting in and out of bed is very important, and the strength of getting in and out of bed is also very important. If the strength is not enough, it will definitely be more prone to problems in the process of use, so when purchasing, you must look at the strength of getting in and out of bed. Whether it meets the standards, whether the edges and corners of the upper and lower beds are properly handled, and whether other designs are potentially dangerous to people.

3. Environmental protection and safety

In addition, the material, glue, paint and process of the upper and lower beds are very important, whether they contain harmful chemical substances, such as various common harmful heavy metals, benzene, phenol and free formaldehyde. Whether it is an adult or a child, these substances are harmful to the body, so you must pay attention when purchasing!

For more details click to visit:https://www.aoyangschoolfurniture.com/aoyang-news/choose-of-single-bunk-beds.html

/by

What material is good for the slewing bearing? how to choose

The material of the slewing bearing directly determines the performance and service life of the bearing. At present, the main structure of the bearing on the market is mostly made of bearing steel, which has the characteristics of corrosion resistance and stability. Of course, in addition to bearing steel, there are also metal materials such as aluminum alloy or copper. In addition, the sealing ring and cage of the bearing may be different from the material of the bearing body. The following slewing bearing manufacturers will share what materials are good for the slewing bearing.

What material is good for the slewing bearing

slewing bearing

1. Ring and rolling element material

In the early stage, 45# steel was used for the slewing bearing, which was gradually eliminated in the later stage due to poor modulation performance. At present, in the more common processing technology, the rolling elements of the slewing bearing are made of carbon-chromium bearing steel which is hardened as a whole. The grade is made of GCr15 or GCr15SiMn steel; the ring of the slewing bearing is made of surface hardened steel, and is made of 50Mn steel if there is no special requirement. But sometimes customers also choose to customize other grades such as 42CrMo, 40Cr, etc. The following introduces the characteristics of these grades of steel.

(1) 42CrMo is a high carbon steel with good quenching and tempering properties and quenching properties, and is an ideal material for slewing bearings.

(2) 50Mn has good hardenability and is also an excellent choice for slewing bearings.

(3) 40Cr is also good in terms of mechanical properties, and is still in the stage of exploration and practice.

(4) GCr15 small slewing bearing can be selected, but milling and drilling in the process are troublesome due to full quenching, so it is generally not recommended.

…

For more details click to visit:https://www.ldb-bearing.com/ldb-bearing-knowledge/slewing-bearing-knowledge/slewing-bearing-material-selection.html

/by

What are the factors that affect the service life of the slewing bearing

There are many factors that affect the life of the slewing bearing. Different working conditions, different materials, and different bearing types will affect the service life of the bearing. For this reason, the life is not a standardized number but depends on the materials, processes, and production levels during production. , as well as the use method during use, maintenance and lubrication conditions and other factors are comprehensively determined.

How long is the service life of the slewing bearing in general

According to the influence of the bearing material, assembly, tolerance fit, lubrication and other factors, the service life of the slewing bearing under normal conditions ranges from 10,000 to 192,000 hours. We generally say that the service life of bearings is also different for different types of bearings.

Like ordinary bearings, the service life of the bearing refers to the failure of use, such as pitting, spalling, etc., which cannot work normally. For spindle bearings, precision bearings, etc., which require high precision, when the running accuracy of the bearing fails to meet the requirements, it will fail, but it is far from the standard of failure of ordinary bearings. So this is also the reason for the different service life of the slewing bearing.

Factors affecting the service life of slewing bearings

Slewing Bearings

1. Manufacturing factors

(1) Design: Whether the diameter, number, ring wall thickness, effective length of rolling contact, tightness, radian and size of the contact surface of the raceway of the bearing are compatible with the matching equipment.

(2) Material: Martensite in the quenched steel, impurities in the steel, chemical composition, gas, cracks, etc., during the bearing production process, the impact of the material on the quality of the bearing is a hard injury, which cannot be compensated by technology in the later stage.

(3) Manufacturing: In the process of producing slewing bearings, the hardness of bearing parts, bearing metallographic structure, surface burns, bumps and scratches, roughness, poor parts grouping, production accuracy, bearing clearance, cleanliness, residual magnetism and parts Residual stress on the working surface will affect the service life of the bearing, and the impact in the manufacturing process is similar to the congenital quality problem. The bearing with defects manufactured under the same working conditions has a shorter life than the standard and qualified bearing.

…

For more details click to visit:https://www.ldb-bearing.com/ldb-bearing-knowledge/factors-affecting-the-life-of-slewing-bearings.html

/by