1. Equipment decomposition test:
1. The packaging ration is over 25KG, the net packaging speed is about 17-19 seconds for one package, the checkweigher is working normally, the heat sealing machine is working normally, the sewing machine is working well, the operator needs to practice more, turning the bag lever, square stick shaping machine The effect can be. If you want to reach the customer's order of 2 bags/min, there is no problem with other equipment, and the key node is the limitation of the finishing and sealing operation time of the heat sealing machine.
2. Operation of the heat sealing machine:
1) The heat sealing machine needs to heat the inner and outer plastic bags separately. Before heat sealing, the internal gas needs to be manually sorted out, so that the remaining amount can be discharged for the heat sealing second layer and subsequent packages. It takes 17-19 seconds for each layer of bag to be heat-sealed and arranged. The two layers need to be heat-sealed for more than 36 seconds at the fastest. The overall heat-sealing time is 4 packs (take the bag from the checkweigher---the fourth pack leaves the heat-sealing machine), totaling 2 minutes 53 seconds, an average of 44 seconds/1 packet.
3. Speed of the sewing machine: about 25 seconds (the material bag is at the head end of the belt------the end time of the fourth sewing bag)
2. The overall test description of the equipment:
1. Due to the limitation of site conditions, only 5 bags can be packed continuously each time.
2. The test calculates the time from the start of the first bag of packaging to the completion of the fifth bag of square roller shaping, and then divides it by 5 to get the average packaging time per bag.
The time for the 2 rounds of the test is as follows: the first round, 5 minutes / 5 packs, an average of 1 point / 1 pack
The second round, 4 minutes 38 seconds / 5 packs. Average 55 seconds / 1 packet.
Test questions and precautions:
1. After the bag is packaged, it cannot be completely let go before it is heat-sealed to prevent it from tipping.
2. The test is in an open field, due to the interference of air volume, it takes a long time to stabilize the instrument (the longest time is 25 seconds, usually 3-5 seconds). If deducting the influence of air volume on the stable start-up delay time of the packaging machine instrument, the entire packaging system averages 49 seconds / 1 package.
2019-5-9 test record:
Note: Considering the influence of strong wind on the stability of the instrument before, this time we choose to do another set of tests on calm weather.
1. Test result: 4 minutes / 5 packs, average 48 seconds / pack.
2. The test uses two heat sealing machines to heat the first and second layers of plastic bags respectively.
Result: 2 minutes 3 seconds / 3 packets. 41 seconds/packet on average,
Analysis: a heat sealing machine with 2 operators, the average fastest speed is 44 seconds per bag, using 2 heat sealing machines can only reduce the time by 3 seconds, because a heat sealing machine with 1 person, the time delay is when you need to arrange the plastic bag to exhaust and exhaust. Heat-sealing above; while using a heat-sealing machine with 2 people to arrange the heat-sealing at the same time, the time delay is in 2 operations.
