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Introduction to the processing flow and production process of blister packaging products

2021/9/22 11:50:47        452

The unit price of blister products is related to the following factors: the length, width, height of blister products and the complexity of blister molding; the type, thickness and color of materials used; Holes, edge banding, etc.), order quantity and order cycle (the order quantity is the key factor in pricing, because every time the machine is debugged there is loss of sheet material and electric energy. The more the quantity, the smaller the loss, and the lower the quotation; quantity; The less, the greater the energy consumption, and the higher the quotation.). The quotation staff will have an initial quotation based on the customer's samples and description, and the final quotation will be quoted after proofing.


    Computer design blister products:


    After the customer basically approves the quotation, the request, physical object or blister sample will be handed over to the business department, and the production scheduling will ask the computer design department to scan the customer’s physical object and combine the design of the printed matter to produce a flat design drawing of the blister product.


    Blister proofing:


    After the customer approves the computer design draft, the production scheduling will decide which method to use to develop the mold (plaster mold, copper mold, aluminum mold) according to the complexity of the blister product. The development cycle is 3-5 days.


    Blister proofing is mostly plaster mold proofing. The operation steps are as follows:


    1. First, use manual mud to form the outline of the actual object;


    2. Put it on the blister making machine to form the blister embryo;


    3. Pour the prepared blister-specific plaster into the blister embryo, and form a gypsum embryo after air-drying;


    4. The electric milling machine is used for deep processing of gypsum rough and regular shapes;


    5. Hand sanding and adding parts by hand;


    6. Glue the polished gypsum parts into a complete plaster mold;


    7. Then put in the blister plate making machine to blister and form a complete sample;


    8. According to the size of the finished product, manually trim and seal the edges to complete the entire proofing process. If there is demand, the printing and proofing department will also produce paper cards, stickers or color boxes used in the blister samples, and they will use the fully-opened digital proofing machine to reflect the actual printing results.


    Making blister production molds:


    After the sample is approved by the customer, a certain number of production orders are usually placed.


    The production scheduling will decide which mold to use for mass production according to the output and the complexity of the blister molding:


    1. It is produced by plaster mold. The mold making process is similar to plastic proofing. The advantage is that the production cycle is short. It only takes one to two days to make a full-page (60X110cm) mold. The disadvantage is that the surface of the plastic finished product is rough and in production. The mold is easy to break, and the durability is poor, and it is impossible to form products with large depth, high complexity, and thick sheets.


    2. The electroplating copper mold is used. The process is to spray a layer of conductive agent on the surface of the blister, and then put it into the electrolytic tank to plate a thick copper layer. The electroplating process takes 72 hours, and then the copper mold Carrying out plaster filling (increasing hardness), polishing, and air-blowing treatment. The advantages of electroplating copper mold production are that the surface of the blister product is smooth, the cost is moderate, and the durability is strong. The disadvantage is that the mold production cycle is long and the production of precision blister products cannot be completed. .


 3. It is produced by blister aluminum mold. The mold production needs to use computer design drawings first, and then use CNC numerical control milling machine processing. The advantage is that the production cycle is moderate, and the later mold processing time is short (the drilling of air holes is completed during CNC processing). The product has high dimensional accuracy and strong mold durability, but the disadvantage is high cost.


    Since the molding range of the fully automatic high-speed blister molding machine is about 66X110cm, whether it is a plaster mold, a copper mold or an aluminum mold, it is necessary to put the individual molds together to reach the molding size. We call this process as imposition. Put it on the aluminum plate or wood board with holes, and the whole-page mold after it is put together is called the bottom mold.


    4. For products with a large blister forming depth, it is also necessary to make an upper mold. While the bottom mold vacuums the sheet to form, apply pressure from above the sheet to stretch the sheet evenly to each part, otherwise it will Cause local thickness is too thin. The entire production cycle of the production mold should be 5 to 7 days.


    Blister production:


    It is produced by a fully automatic high-speed blister molding machine. The basic principle is: pull the rolled sheet into the electric furnace and heat it to a softened state, and then pull it to the top of the blister mold by the heat. The mold is moved up and vacuumed to soften the The sheet is adsorbed to the surface of the mold, and cooling water is sprayed on the surface of the molded sheet in a mist form to harden it. The molded sheet is automatically pulled to the storage box, and the pneumatic cutter separates the molded and unformed sheet. So as to complete the whole process.


The main quality problems of blister products mostly occur in this process:


    1. Insufficient blister means that the shape is deformed and there is no product that is blistered into the same shape as the mold;


    2. Excessive blister means that the product is too thin;


    3. Pull line refers to the appearance of undesirable line marks on the molded product;


    4. Uneven thickness. These problems need to be debugged in place after the mold is installed, including: the time of sheet advancement, the heating temperature and time, the strength and time of vacuuming, the position, time and depth of the drop of the upper mold, and the placement of the mold in the imposition. Location, whether to add accessories between the molds, etc.


    Blister product punch processing:


    The large-format product formed by blister must pass through a punch, and be divided into a single product with a knife. The principle is that there is a large plastic cutting board on the bottom table of the punching machine. The large-format molded product is placed on the cutting board, and the pre-made knife die is clamped on a single product. Through the up and down movement of the punch, a single finished product is cut out. .


    Package                                                  


    The products punched out by the punching machine will be packaged and shipped to customers in a certain quantity after being inspected by the quality inspector.


    The customer sends out a request for quotation of blister products:


    The first way is to call for quotation, the second way is to send a fax inquiry, the third way is to send an email inquiry, and the fourth way is to inquire through the Internet chat tool. The customer must provide the length, width, height of the blister product, the thickness, color and model (PVC, PET, PS, PP) of the material used, the number of products and the production cycle.
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