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Operation process of bag making machine


Operation process of bag making machine


The bag making machine is specially designed as a dual-purpose machine for point-disconnected and continuous-rolling flat pockets and point-disconnecting and continuous-rolling vest bags. Using computer control, the step (servo) fixed-length system makes the sealing and cutting size error small. The device electric eye tracking makes the pattern position of the printed bag accurate. 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. Let's learn the operation process of the bag making machine:

Preparations before start-up


1. Check whether there is dust and debris around the equipment and remove them.


2. Install the film roll according to the requirements of the production notice.


3. Adjust the size of the bag according to the production notice and process documents, install the heat sealing knife, and preliminarily adjust the position of the slitting knife and the heat sealing knife.


4. Turn on the power and set the temperature of the heat sealing knife according to the requirements of the process document.


5. Input the relevant data of bag making and the required number of each bundle.


6. Select the edge of the pattern with large color difference and adjust the sensitivity of the light eye to make it meet the requirements.




1. Start the main motor, run at low speed, and then adjust the edge position control to divide the film in the middle position.


2. Adjust the left and right pinch rollers to align the left and right films, and adjust the front and rear pinch rollers to align the pattern.


3. Adjust the heat-sealing knife to make it heat-sealed within the required range of the bag.


4. Adjust the slitting blade to the desired position, and adjust the punching position to the scissors mouth.


5. Preliminarily adjust the speed of the machine, take a flat-out sample bag for initial inspection, and if it does not meet the specified requirements, take another flat-out sample bag for heat sealing value test.


6. Arrange the produced bags, and select the bags with quality defects (such as folding, tunnel, flower width, knife line, poor heat sealing, four seals, etc.) and bundle them according to regulations.


7. The machine quality inspector will carry out the inspection. After the inspection is qualified, the certificate will be pasted and sent to the quality inspection room for random inspection.


8. During the production process, observe the bag making situation at any time and find any abnormality and adjust it immediately.




1. Disconnect the main power switch, and then disconnect the power switch of each part.


2. Clean the machine hygiene and site hygiene, and send the products to the general inspection room.


3. Make a record of the shift, requiring accuracy and cleanliness




1. Packing: The machine personnel will sort out the products in this process, select the unqualified products with quality defects (such as folding, tunnel, flower width, cutting line, poor heat sealing, four seals, incomplete patterns, etc.) The product is bundled and handed over to the machine quality inspector for inspection.


2. Inspection: The quality inspector of the machine will inspect the quantity and quality one by one. After the quantity and quality are all qualified, they will be put into the box according to the requirements and put into the packing list; Qualified" marked in the carton.


3. The machine personnel will send the products on duty to the appearance quality inspection room.


4. The general quality inspector will sample and inspect the products submitted for inspection according to the specified proportion, and pack them into storage after passing the inspection.


Where to buy a bag making machine


Wenzhou Yiran Import & Export Co., Ltd. is based in Wenzhou, China,with more than 15 years experiences of plastic machinery that offers machines to clients at reasonable prices and best service. 


Expansion of the infrastructure by installing latest machines for printing, slitting, packing along with continuous development keeps us at the forefront of the industry. We are a technology advanced and customer led company, focused to meet clients expectations by offering exact products as per their requirements.

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