3 Ordnance maintenance equipment packaging technology improvement Ordnance maintenance equipment packaging technology improvement is mainly to change the traditional packaging to blister packaging, body packaging, shrink packaging and vacuum packaging and other four new technologies.
3.1 Blister Packing Technology Blister packs are a type of packaging where the product is sealed between a blister formed from a transparent plastic sheet and a base plate (made of cardboard, plastic film or sheet, aluminum foil or their composite materials). method. After blister packs are used in the field of military packaging, they are mainly used to pack ordnance maintenance equipment with a length, width and height of less than 220mm, 75mm and 48mm, respectively. Blister packs are well-protected, transparent, intuitive, easy to use, and lightweight.
3.1.1 Materials The blister packaging material is mainly composed of a thermoplastic film for blisters and a backing substrate. There are many types of plastic films that can be used for blister packaging. When selecting, the adaptability of plastic films and maintenance equipment must be taken into consideration. That is, the materials used must meet the technical requirements of blister packaging, while minimizing costs. Typical materials for blister packaging are cellulose, styrene, vinyl, polyvinyl chloride, composite aluminum, and the like. Polyvinyl chloride (PVC) has excellent transparency, good thermoformability, and heat sealability. And high gas barrier properties, adding plasticizers can improve cold resistance and impact strength, use better, lower cost, can be preferred.
The substrate is also a major part of the blister pack. As with plastic films, the size, shape, and weight of the device must be taken into account when choosing. Substrates mainly include white paperboard, coated composite materials (mainly coated heat-seal coatings), corrugated cardboard, coated aluminum books, and polyvinyl chloride and other composite materials.
After scientific analysis and repeated tests, ordnance maintenance equipment used polyvinyl chloride (PVC) as the material for blister packaging containers, and its thickness was 0.25mm, 0.35mm, 0.50mm, and 0.60mm.
3.1.2 Methods Choosing blister packs vary from device to device. At the same time, there are many kinds of blister packaging machines, so there are many kinds of blister packaging methods. According to the operation method, there are mainly three kinds of manual operation, semi-automatic operation and automatic operation.
According to the size and shape of the ordnance maintenance equipment and the comprehensive comparative study, the semi-automatic packaging method was selected. The process is: PVC sheet (film) material feed → heating → plastic molding → cutting and sorting → inspection → loading → bottom cover → high frequency heat sealing → inspection → labeling.
3.1.3 Equipment selection The blister packaging machine forms transparent plastic film or sheet into blisters, and seals the product to the machine between the blisters and the bottom plate by means of heat sealing and bonding.
Blister packaging machinery and equipment are mainly blister forming machine and heat sealing machine. The blister forming machine is heated by hot air flow and heat radiation. Among them, heat radiation heating uses radiant heat generated by a heater to heat the material, and the heating efficiency is high. Forming methods can be divided into two types: compression molding and suction molding. Blister forming is to vacuum the way to make the softening film close to the mold shape, forming better quality. According to different heat sealing methods, heat sealing machine can be divided into ordinary heat sealing, pulse heat sealing, ultrasonic heat sealing and high frequency heat sealing.
After investigation and research, comparative identification, automatic maintenance equipment blister packaging selection of automatic vacuum plastic molding machine, GZR8000SD high-frequency plastic heat sealing machine and high-speed hydraulic gantry cutting machine.
a. Automatic vacuum molding machine. It is mainly suitable for polyvinyl chloride (PVC), polystyrene (PS), polypropylene (PP) reel film or sheet, vacuum blister to manufacture plastic blister packaging ordnance maintenance equipment. Working principle: heat softening plastic film or sheet, vacuum forming in the mold, become the desired product; its process: film feed - heating - forming - sub-version;
b. GZR8000SD high frequency plastic heat sealing machine. Working principle: The self-oscillation oscillator generates a high-frequency electric field, and it is applied to the electrode by the well. Under the action of the high-frequency electric field, the plastic will generate polarization and generate heat by itself, and achieve the purpose of hot dissolution under the effect of pressure. . The equipment is used for heat sealing packages of 83 kinds of polyethylene (PE) material blisters for ordnance maintenance equipment. The specifications are as follows: the thickness is 0.18mm, 0.25mm, 0.35mm and 0.60mm;
c. High-speed hydraulic gantry trimming machine is used to carry out the trimming process of military maintenance equipment packaging materials.
3.2 Skin Packaging Technology Skin Packaging Place the product on a breathable floor made of cardboard or plastic sheeting (membrane) covered with a heat-softened plastic sheet and evacuated through the bottom plate to make the sheet (film) A method of wrapping a product tightly around it and sealing it around the bottom plate.
Skin-fitting packaging is used in the field of ordnance maintenance equipment packaging and is mainly used to package metal spare parts that cannot be completed with a single blister pack.
Similar to the blister packaging, the body-fitting packaging is similar to the blister-packed packaging. It has the features of intuitionistic, easy-to-use, and good cushioning properties. It also has features such as no need of molds, convenient packaging, low cost, and good protection. .
3.2.1 The material is body-packed and consists of a plastic film, a heat-sealable coating, and a card substrate. When selecting the material, the size, shape, weight, and other factors of the device should be considered. Appropriate packaging for ordnance maintenance equipment should emphasize the protection, transparency, endothermic property, puncture resistance, and deep tensile properties of the sheet, and should use polyethylene (PE) transparent body roll film and corrugated cardboard (surface coated Gas phase corrosion inhibitor).
3.2.2 Method Selection The principle of body-fit packaging is similar to that of blister packs, but the operation method is different. The main difference lies in three aspects: First, the mold is not used, but the packaged object is used as a mold; It is only possible to perform thermoforming using a vacuum suction method. Third, many small holes must be machined on the substrate in order to allow vacuum.
The substrate for body-fit packaging requires a small hole. The method is to open the substrate cardboard with a needle roller out of the hole. The diameter of the hole is about 0.15mm, and about 3-4 holes per square centimeter. The process is:
Fit thick 0.16mm PE upper and lower body membranes → heat the upper film → place the parts on the paper-laying bottom plate → parts, base plate and upper film body → the bottom plate and lower film body-sealing edges → slitting → inspection → labeling.
3.2.3 Device selection Fitting packaging machine: The product is placed on the bottom plate, and the plastic sheet (film) of the covering device is closely attached to the equipment under the action of heating and vacuum and is sealed with the bottom plate.
The body-fitting packaging machine is generally of manual type, simple in structure, and cheap in price, because the replacement equipment does not need a mold, so it is more flexible. The main types of the packaging machine are a thin film heating body-fitting machine and a flow-infusion body-fitting machine. The film heating body machine manually places the substrate and the packaged equipment in a desired position, heats the plastic film in a holder, and then attaches the softened plastic film to the equipment and applies a vacuum. Substrate bonding; flow infusion body machine and film heating body machine difference is: the granular resin plastic melted after extrusion from the extruder head, through a special nozzle to form a molten film, covered in equipment and On the substrate. This packaging method has a higher degree of automation, and the packaging effect is also very good.
After investigation and research, the DXDT480 automatic body-fitting packaging machine has been selected for repeated testing of ordnance maintenance equipment. (To be continued)
3.1 Blister Packing Technology Blister packs are a type of packaging where the product is sealed between a blister formed from a transparent plastic sheet and a base plate (made of cardboard, plastic film or sheet, aluminum foil or their composite materials). method. After blister packs are used in the field of military packaging, they are mainly used to pack ordnance maintenance equipment with a length, width and height of less than 220mm, 75mm and 48mm, respectively. Blister packs are well-protected, transparent, intuitive, easy to use, and lightweight.
3.1.1 Materials The blister packaging material is mainly composed of a thermoplastic film for blisters and a backing substrate. There are many types of plastic films that can be used for blister packaging. When selecting, the adaptability of plastic films and maintenance equipment must be taken into consideration. That is, the materials used must meet the technical requirements of blister packaging, while minimizing costs. Typical materials for blister packaging are cellulose, styrene, vinyl, polyvinyl chloride, composite aluminum, and the like. Polyvinyl chloride (PVC) has excellent transparency, good thermoformability, and heat sealability. And high gas barrier properties, adding plasticizers can improve cold resistance and impact strength, use better, lower cost, can be preferred.
The substrate is also a major part of the blister pack. As with plastic films, the size, shape, and weight of the device must be taken into account when choosing. Substrates mainly include white paperboard, coated composite materials (mainly coated heat-seal coatings), corrugated cardboard, coated aluminum books, and polyvinyl chloride and other composite materials.
After scientific analysis and repeated tests, ordnance maintenance equipment used polyvinyl chloride (PVC) as the material for blister packaging containers, and its thickness was 0.25mm, 0.35mm, 0.50mm, and 0.60mm.
3.1.2 Methods Choosing blister packs vary from device to device. At the same time, there are many kinds of blister packaging machines, so there are many kinds of blister packaging methods. According to the operation method, there are mainly three kinds of manual operation, semi-automatic operation and automatic operation.
According to the size and shape of the ordnance maintenance equipment and the comprehensive comparative study, the semi-automatic packaging method was selected. The process is: PVC sheet (film) material feed → heating → plastic molding → cutting and sorting → inspection → loading → bottom cover → high frequency heat sealing → inspection → labeling.
3.1.3 Equipment selection The blister packaging machine forms transparent plastic film or sheet into blisters, and seals the product to the machine between the blisters and the bottom plate by means of heat sealing and bonding.
Blister packaging machinery and equipment are mainly blister forming machine and heat sealing machine. The blister forming machine is heated by hot air flow and heat radiation. Among them, heat radiation heating uses radiant heat generated by a heater to heat the material, and the heating efficiency is high. Forming methods can be divided into two types: compression molding and suction molding. Blister forming is to vacuum the way to make the softening film close to the mold shape, forming better quality. According to different heat sealing methods, heat sealing machine can be divided into ordinary heat sealing, pulse heat sealing, ultrasonic heat sealing and high frequency heat sealing.
After investigation and research, comparative identification, automatic maintenance equipment blister packaging selection of automatic vacuum plastic molding machine, GZR8000SD high-frequency plastic heat sealing machine and high-speed hydraulic gantry cutting machine.
a. Automatic vacuum molding machine. It is mainly suitable for polyvinyl chloride (PVC), polystyrene (PS), polypropylene (PP) reel film or sheet, vacuum blister to manufacture plastic blister packaging ordnance maintenance equipment. Working principle: heat softening plastic film or sheet, vacuum forming in the mold, become the desired product; its process: film feed - heating - forming - sub-version;
b. GZR8000SD high frequency plastic heat sealing machine. Working principle: The self-oscillation oscillator generates a high-frequency electric field, and it is applied to the electrode by the well. Under the action of the high-frequency electric field, the plastic will generate polarization and generate heat by itself, and achieve the purpose of hot dissolution under the effect of pressure. . The equipment is used for heat sealing packages of 83 kinds of polyethylene (PE) material blisters for ordnance maintenance equipment. The specifications are as follows: the thickness is 0.18mm, 0.25mm, 0.35mm and 0.60mm;
c. High-speed hydraulic gantry trimming machine is used to carry out the trimming process of military maintenance equipment packaging materials.
3.2 Skin Packaging Technology Skin Packaging Place the product on a breathable floor made of cardboard or plastic sheeting (membrane) covered with a heat-softened plastic sheet and evacuated through the bottom plate to make the sheet (film) A method of wrapping a product tightly around it and sealing it around the bottom plate.
Skin-fitting packaging is used in the field of ordnance maintenance equipment packaging and is mainly used to package metal spare parts that cannot be completed with a single blister pack.
Similar to the blister packaging, the body-fitting packaging is similar to the blister-packed packaging. It has the features of intuitionistic, easy-to-use, and good cushioning properties. It also has features such as no need of molds, convenient packaging, low cost, and good protection. .
3.2.1 The material is body-packed and consists of a plastic film, a heat-sealable coating, and a card substrate. When selecting the material, the size, shape, weight, and other factors of the device should be considered. Appropriate packaging for ordnance maintenance equipment should emphasize the protection, transparency, endothermic property, puncture resistance, and deep tensile properties of the sheet, and should use polyethylene (PE) transparent body roll film and corrugated cardboard (surface coated Gas phase corrosion inhibitor).
3.2.2 Method Selection The principle of body-fit packaging is similar to that of blister packs, but the operation method is different. The main difference lies in three aspects: First, the mold is not used, but the packaged object is used as a mold; It is only possible to perform thermoforming using a vacuum suction method. Third, many small holes must be machined on the substrate in order to allow vacuum.
The substrate for body-fit packaging requires a small hole. The method is to open the substrate cardboard with a needle roller out of the hole. The diameter of the hole is about 0.15mm, and about 3-4 holes per square centimeter. The process is:
Fit thick 0.16mm PE upper and lower body membranes → heat the upper film → place the parts on the paper-laying bottom plate → parts, base plate and upper film body → the bottom plate and lower film body-sealing edges → slitting → inspection → labeling.
3.2.3 Device selection Fitting packaging machine: The product is placed on the bottom plate, and the plastic sheet (film) of the covering device is closely attached to the equipment under the action of heating and vacuum and is sealed with the bottom plate.
The body-fitting packaging machine is generally of manual type, simple in structure, and cheap in price, because the replacement equipment does not need a mold, so it is more flexible. The main types of the packaging machine are a thin film heating body-fitting machine and a flow-infusion body-fitting machine. The film heating body machine manually places the substrate and the packaged equipment in a desired position, heats the plastic film in a holder, and then attaches the softened plastic film to the equipment and applies a vacuum. Substrate bonding; flow infusion body machine and film heating body machine difference is: the granular resin plastic melted after extrusion from the extruder head, through a special nozzle to form a molten film, covered in equipment and On the substrate. This packaging method has a higher degree of automation, and the packaging effect is also very good.
After investigation and research, the DXDT480 automatic body-fitting packaging machine has been selected for repeated testing of ordnance maintenance equipment. (To be continued)
Food Grade Essential Oil,Cumin Oil,Garlic Oil,Black Pepper Oil
Ji'An ZhongXiang Natural Plants Co.,Ltd. , https://www.zxnaturaloils.com