Small items tend to be messy during storage and transportation, and multiple items are usually grouped together according to certain rules. Consolidated pre roll display box packaging refers to the collection of many small pieces of packaged or unpackaged goods into a large cargo unit that can be hoisted or forklifted through a container to facilitate the use of machinery for loading, unloading and handling operations. Containers can be roughly divided into six categories according to their shapes: bundled containers, pallet containers, container bags, container nets and containers. The purpose of container packaging is to save manpower and reduce the transportation and pre roll display box packaging costs of goods.
Pre roll display box packing method
Bundling and containerization is a collective packaging method that uses strapping materials to combine goods such as metal products, wood, or small packages into an independent data transport unit. Figure 7-17 shows the application of various strapping and containerization. This packaging pre roll display box process consumes less packaging materials, has low cost, is easy to store, load, unload, and transport, and has the functions of sealing, sealing, anti-theft, and preventing items from being lost or collapsed.
Commonly used strapping materials for pre roll display box
Commonly used strapping materials include steel wire, steel straps, polyester, nylon, polyethylene, polypropylene, polyvinyl chloride and other plastic strapping straps and reinforced strapping straps. Steel wire is mostly used to bundle rigid objects such as metal profiles, pipes, bricks, wooden boxes, etc. When bundling wooden boxes, they will become embedded in the edges and corners of the wooden boxes. Steel straps are the type of strapping with the highest tensile strength. They have a small expansion rate and are basically not affected by factors such as sunlight and temperature. They have excellent tension retention capabilities and can withstand the tension of high-strength compressed goods, but they are prone to rust. Polyester belts have high tensile strength and impact resistance, good elastic recovery properties and tension retention capabilities, good chemical resistance, and good long-term storage. They can replace steel belts for packaging pre roll display box heavy items. Nylon straps are elastic, strong, have good wear resistance, bending resistance, water resistance, chemical resistance, and are light in weight. They are mainly used for bundling and packaging of heavy items, pallets, etc. Polyethylene straps are excellent strapping materials for handicraft operations. They have good water resistance and are suitable for strapping agricultural products with high moisture content. They can maintain a reliable and stable shape, are stable in storage, and are easy to use. The polypropylene belt is light and soft, has high strength, is water-resistant.
A pallet is a container device used to stack goods in a certain form and can be loaded, unloaded and transported. Pallet packaging pre roll display box is a collective packaging method that combines several packages or goods into an independent handling unit in a certain way. It is suitable for mechanized loading and unloading transportation operations, facilitates modern warehousing management, and can greatly improve the loading and unloading and transportation efficiency of goods. Warehousing management level.
1. Pre roll display box pallet packaging process
(1) Pallet packaging pre roll display box and its characteristics The advantages of pallet packaging are good overall performance, smooth and stable stacking, which can avoid the phenomenon of packages falling into boxes during storage, loading, unloading, transportation and other circulation processes. It is suitable for loading, unloading and transportation of large machinery. Compared with relying on manpower and small machinery to load and unload small packages, its work efficiency can be greatly improved, and it can greatly reduce the possibility of collision, fall, dumping and rough handling of goods during storage, loading and unloading, transportation and other circulation processes, ensuring Security of cargo turnover. However, pallet packaging increases the cost of pallet production and maintenance, and requires the purchase of corresponding handling machinery. Relevant statistics show that using pallet packaging pre roll display box instead of original packaging can significantly reduce circulation costs, including 45% reduction for home appliances, 60% reduction for paper products, 55% reduction for groceries, and 15% reduction for flat glass and refractory bricks.
(2) Pallet stacking methods There are generally four pallet stacking methods, namely simple re-viewing type, forward and reverse staggered type, crisscross type and rotating staggered type stacking, as shown in Figure 7-18. Different stacking methods have their own advantages and disadvantages, which should be selected according to the specific situation.
In simple overlapping stacking, the goods on each layer are arranged in the same way, but there is no cross-overlap. The goods are often easily separated longitudinally, have poor stability, and require high compressive strength of the bottom layer of goods. From the perspective of improving stacking efficiency and giving full play to the compressive strength of packaging, simple overlapping stacking is the best stacking method. The stacking patterns of the odd-numbered layers and the even-numbered layers of forward and reverse staggered stacking are 180° different. The overlap between the layers is good, and the stability of the pallet cargo is high. This stacking method is mostly used for rectangular pallets, and the length and width of the goods are The ratio is 3:2 or 6:5. The odd and even numbered layers of criss-cross stacking are stacked in different directions. The directions of the stacking patterns of two adjacent layers differ by 90°. It is mainly used for square pallets. In staggered stacking, when stacking each layer, the direction is changed by 90° to form an overlap to ensure stability, but because the center is prone to holes, reducing the surface utilization of the pallet, this stacking method is mainly used for square pallets. In order to ensure the scientificity and safety of stacking goods on pallets in a certain way, when designing pallet packaging, it is necessary to refer to the national standard CB4892 “Rigid Cuboid Transport Packaging Dimension Series” based on the type of goods, pallet load mass and size, etc. “, GB 13201 “Rigid Cylinder Transportation Packaging Dimension Series” and GB 13757 “Bag Transportation Packaging Dimension Series” and other standards to reasonably determine the stacking method of goods on the pallet, and the pallet surface utilization rate is generally not less than 80%.
The basic principles for selecting pallet stacking methods are:
① Rigid rectangular goods such as wooden, paper and metal containers should be stacked in a single or multi-layer staggered manner and fixed with stretch packaging or shrink packaging; ② Paper or fiber goods Use single or multi-layer staggered stacking and cross-sealing with strapping tape; ③ Sealed metal containers and other cylindrical goods should be stacked in single or multi-layer staggered style and reinforced with wooden covers; ④ Moisture-proof, waterproof, etc. Protective paper products and textiles should be stacked in multiple layers and staggered, and use stretch packaging, shrink packaging or adding corner supports, covers and other reinforcement structures; ⑤ Fragile goods should be stacked in single or multi-layers, with wooden supports added Partition structure; ⑥ Metal bottle cylindrical containers or goods are stacked vertically in a single layer to increase
The structure is reinforced with cargo frames and slats; ⑦ Bags of goods are mostly stacked in a forward and reverse staggered manner. In pallet packaging, the packaging product at the bottom bears the compressive load of the upper goods, and long-term compression conditions will cause the packaging container or material to creep, affecting the stability of the pallet packaging. Therefore, when designing pallet packaging, it is necessary to check the stacking strength of packaging containers and consider the creep properties of packaging containers or packaging materials to ensure the safety of goods during storage and transportation.
(3) Pallet fixing method During the storage and transportation process of pallet-loaded unit goods, in order to ensure its stability, appropriate fastening methods must be used to prevent it from collapsing. For products that require moisture-proof and waterproof requirements, corresponding measures must be taken. Commonly used fixing methods for pallet packaging pre roll display box include bundling, gluing, wrapping, and protective reinforcement accessories, etc., which can also be used in conjunction with each other. Bundling and fastening methods commonly use metal straps and plastic straps to horizontally and vertically strap packages and pallets to prevent packaged products from shaking during transportation. () (e) As shown in Figure 7-19, various pallet fixings method. For pallet packaging that still cannot meet the transportation packaging pre roll display box requirements after being fixed, protective reinforcement accessories should be selected as needed. Protective reinforcement accessories are made of paper, wood plastic, metal or other materials.
2.Pre roll display box pallet packaging design method
The size of pallets has been standardized. In order to ensure the effect of pallet packaging, the box packaging of products should be reasonably combined. The quality of pallet packaging directly affects the safety of packaged products in the circulation process. Reasonable pallet packaging can improve packaging quality and safety, speed up logistics, and reduce transportation and packaging costs. There are two design methods for pallet packaging: “inside-out” and “outside-in”.
(1) The “inside-out” design method is to design the inner packaging, outer packaging and pallet in sequence according to the structural size of the product. The product is packaged into small packages sequentially from the production workshop, and then according to multiple small packages or larger sizes Select packaging boxes based on individual packaging pre roll display box, then assemble the selected packaging boxes on pallets, and then transport them to users. The design process is shown in Figure 7-20. According to the size of the outer packaging, the way it is stacked on the pallet can be determined. Since there are many ways to stack corrugated boxes of a certain size on the pallet plane, it is necessary to compare various methods and choose the optimal solution.
When designing pallet packaging, the internationally recognized packaging modulus of a rigid cuboid [600, 400] should be followed, and the dimensions [1200, 800] and [12001000] in the national standard GB2934 “Main Dimensions and Tolerances of Universal Flat Pallets for Intermodal Transport” should be preferred. Series pallets to make full use of the pallet surface area and reduce packaging and transportation packaging costs. Large-volume pallet packaging design can be completed using pallet stacking packaging design software.
3. Pre roll display box container packaging technology
The pallet is a frame-type container with high strength and is especially suitable for packaging heavy-duty products with complex structures and large batches. Some products have large batches and complex shapes and cannot be packaged in pallets. The frame structure is usually made of steel, wood or other materials. Its function is to fix and protect items, and to provide necessary auxiliary devices for lifting, forklifting and stacking of products after assembly. This kind of frame structure is called a pallet, which can be recycled and reused for a long time.
A container is a comprehensive large-scale turnover box and a large packaging container for container packaging products. It is usually produced and used in accordance with international standards. Container transportation has incomparable advantages over other modes of transportation and has become the main form of cargo transportation worldwide.
The ISO/TC104 Container Technical Committee of the International Organization for Standardization defines a container as “a container that can be reused for a long time and has sufficient strength; it can be transferred during transit without moving the goods in the container, can be directly changed, can be quickly loaded and unloaded, and can be directly transferred from a means of transportation Conveniently transferred to another means of transportation, convenient for filling and emptying of goods, and a transport container with a volume of more than 1m.” There are many ways to classify containers, and they are divided into aluminum containers, steel containers and fiberglass containers according to materials. . According to the structure, they are divided into pillar containers, folding containers, thin-shell containers and frame containers. According to the purpose, they are divided into general containers and special containers. General-purpose containers, that is, general dry cargo containers, are the most widely used containers with a high degree of standardization. They are generally used to transport finished industrial products or packages that do not require temperature regulation. Special containers are containers with special requirements for specific packages or goods, such as bulk containers, open-top containers, refrigerated containers, insulated containers, ventilated containers, fully open sidewall containers, plate rack containers, tank containers, and fenced containers. wait.
Container packaging pre roll display box technology mainly includes preparation of container cargo stowage plan, selection of transportation mode and freight handover method
etc. For relevant requirements, please refer to the container transportation standards.
Post time: Mar-22-2024