Juxin Food Vacuum Packaging Machine
Many food companies report that their product packaging bags are leaking or expanding bags. There are many reasons for this. The main reason for air leakage is that the sealing is not well bonded, but the quality of the composite packaging bag is not good, and the food vacuum produced by the company. The heating strip of the packaging machine adopts the imported M -type heating strip, the new copper block heating device , which has good electrical conductivity and is not easy to break . The characteristics of the heating strip are not suitable for the workers when the bag is packed, if the seal is one centimeter with oil or Moisture impurities, etc., the heating strip does not affect the sealing, and the bag breakage rate is low. Product: 500g plastic packaging mixed raspberry The enterprise involved in this case is a Sino-foreign joint venture specializing in the cultivation, production, processing and import and export of all kinds of frozen and fresh vegetables and fruits. We have hired a lot of management talents and technical talents with rich production management experience, and introduced advanced production and processing equipment from abroad, which greatly improved the efficiency of production. For scientific management and production, it has passed ISO9001: 2000 quality management system certification, HACCP certification, organic certification and Jewish certification. Standardized management in accordance with HACCP, GMP and SSOP in production and processing, providing a reliable guarantee for providing healthy and quality products. The production and processing of various frozen fresh vegetables and fruits are popular in Germany, France, Belgium, Russia, Sweden, the United Kingdom, the United States, Canada, the Middle East, Southeast Asia, Japan and South Korea, and are well received by users. The company's products are diverse, fruit has strawberries, raspberries, blackberries, blueberries, red beans, gallons, apples, pears, peaches, apricots, etc.; vegetables have broccoli, spinach, ginger, garlic, asparagus, color pepper, edamame, green beans and many more. In different states, there are whole grains, petals, blocks, diced, tablets, pulp, segments, mud, etc., as well as mixed packaging. The annual output is around 8,000 tons. The product involved in this case is 500g plastic packaging mixed raspberry, the process flow is: Raw material receiving → into the freezer → out of the warehouse → picking → grading → proportioning over the scale (in the small package inside the 500g package) → sealing → boxing → packing → storage Choose high-quality raspberries, blackberries, strawberries, blueberries (both in the frozen state) to mix in a certain proportion (generally according to customer requirements), placed in a 500g packaged small package (zipper bag), sealed, over Gold exploration, boxing, packing. Quality event: In August 2006, after receiving the goods for half a month, the customer received feedback that the small bag inside the mixed raspberry was not tightly sealed, there was a crack or opening phenomenon, and the finished product rolled into the small box. research analysis: After receiving customer feedback, immediately convene relevant departments, organize relevant personnel to analyze and investigate the problem, the results are as follows: 1. May be the quality problem of the ziplock bag itself A, self-sealing effect is not good. The original records of inspection and inspection materials were collected. In the 15,000 strips of mixed berry self-sealing bags purchased on October 13, 2006, 100 samples were taken. The results of sensory inspection showed no pollution, no damage, clear printing, no smearing, and tight sealing. Does not leak, in line with the acceptance criteria for accessories. B. When the machine is sealed, at the same temperature and at the same speed, the thickness of the inner bag (self-sealing bag) is not uniform, which is also a factor affecting the crack. The small inner bag (self-sealing bag) used for blending raspberries is made of polyethylene. The standard size is 18.5cm×28.5cm×10cm. Check the original record of excipient inspection. It is found that there are 48 self-sealing bags in the spot check. It is in line with the standard and the pass rate is 96%. Therefore, this one reason can be ruled out. B. The bag is small, sometimes the error of the scale is too large, and the product is installed too much. At that time, the sealing is good, but when the small box is packed, the back pressure is opened to open the mouth of the bag (one end of the zipper bag). According to the company's regulations, the tolerance allowed by the scaler over the scale is about ±5 grams, and the electronic scale is calibrated with the weight before each scale. Check the calibration record and the packaging operation confirmation record. The deviation of the scale will not be very large. The small box and the ziplock bag (500g) are matched, so this reason can also be ruled out. C, the ziplock bag itself is not resistant to high temperatures Looking at the previous accessories acceptance record, this self-sealing bag has been used many times, so the problem of the zipper bag material can be ruled out. 2. The sealing machine (semi-automatic) operation process is not properly controlled. The sealing machine is a device that is continuous, the machine rotates, and the bag is placed between the two belts to be semi-automatically sealed. Temperature and speed must be adjusted manually. Analysis of the machine may have the following problems: A, the temperature of the sealing machine can not reach, the self-sealing bag mouth can not stick, and the box is pressed open. B. The temperature of the sealing machine is too high, and one side of the bag is melted, causing the other side to tear and open. C. The speed and temperature of the sealing machine are not consistent, resulting in a tight seal. D. The sealing module heating module loses the adjustment function. E. The temperature of the sealing machine is not well monitored and adjusted during operation. After reviewing the shipment, the bag was mostly torn from the sealing line, so it should be caused by too high temperature and too slow speed. 3. Personnel awareness and management factors. For analysis, the following problems may exist: A. The moisture of the self-sealing bag mouth is not removed, and it is not sticky when sealing, there is air leakage, and the box is pressed open. B. When the sealing machine is over, the bag is not flattened, and there are wrinkles in the middle, which makes the sealing not achieve good results. C. The staff (including over-weighing, sealing, boxing, packing) work is not serious, and the effect of sealing is not carefully checked. D. The quality inspector is derelict and does not play a supervisory role. E. When sealing, the air in the bag is not completely removed, and the backing is sealed to make the inner bag burst. Among them, when the sealing is carried out, whether the heating surface of the bag is smooth, whether it is flattened or not, and the wrinkles in the middle may cause the bag to tear away from the sealing portion. Corrective measures: 1. When purchasing materials, ask for the production certificate of the other party. 2. When purchasing a ziplock bag, you can ask for an appropriate increase in the thickness of the bag. 3. When using the semi-automatic sealing machine, plug in the electricity for a while, and start working when the temperature is suitable. To ensure that all seals are tight. 4. Determine the appropriate temperature value (usually around 150 °C) according to the material of the ziplock bag. 5. During the operation, the working time is too long and the temperature will gradually increase. Therefore, it is necessary to strengthen the frequency of temperature regulation and ensure the quality of the sealing. 6. During operation, pay attention to the consistency of the temperature and speed of the sealing machine, and the speed should not be too fast, so as to avoid the sealing is not strict. The speed is generally around 1 bag/s. 7. It is recommended to purchase a fully automatic sealing machine. The temperature and speed can be adjusted automatically, which can reduce some manual operation errors. 8. After sealing, add an employee before packing, specializing in checking the quality of the seal, and re-reworking the bags that do not meet the requirements, ensuring that all zipper bags are tightly sealed. 9. Enhance the training of employees' quality awareness, increase the content of sealing, and conduct assessments. 10. Adopt quality reward and punishment measures, and score and deduct points for personnel in important positions, directly linked to wages. 11. For the quality reform of the quality inspectors, increase the quality of wages, while the assessment of quality wages is also linked to wages by means of scoring and deduction. Effect verification: According to the measures we have developed, considering the future production, the proportion of small packages will gradually increase. The company has purchased a fully automatic sealing machine and verified it step by step according to the measures we have developed. The result is that the ziplock bag is open and open. The proportion has dropped drastically and is basically gone. The measures have been validated. Work experience: 1. Quality management Quality management not only includes control of the product itself, but also a content that cannot be ignored in packaging materials. The inner bag seal should be tight and airtight. The tape is symmetrical (5cm left and right) 2. Detail management In every detail of production and processing, there may be such a leak in case of carelessness, so strengthening the management of details is also an important aspect. 3. Personnel management The training of workers should be comprehensive, in place, and regularly assessed, and it is important to strengthen quality awareness training. In addition, linking quality assessment to wages is also a viable option to increase worker motivation. Monensin Granular,Monensin Growth Promoter,Monensin Antibiotics,Monensin Feed Additives Shandong Shengli Bioengineering Co., Ltd , https://www.shenglipharm.com