Cartoning, Packing, Bagging and Wrapping Technology (Part 2)

2. The semi-automatic cartoning method is performed by the operating worker in conjunction with the cartoning machine to complete the cartoning process. The product is loaded into the box by hand, and the rest of the processes, such as taking blanks, printing, spreading, sealing, and capping, are done by the machine; some products need to be loaded into the instructions, such as medicines and chemicals, etc. are still used by hand. put into a.
The structure of the semi-automatic cartoning machine is relatively simple, but the type and size of the cartoning can be changed, and the time required to adjust the machine when changing the variety is short, it is suitable for loading the carton of many varieties and small batches of products, and it is easy to move, sometimes equipped with a runner. , can be easily transferred from one production line to another, the productivity is generally 30 ~ 50 boxes / min, varies with the product. Some semi-automatic cartoners are used to hold a set of products, such as small bags of tea, coffee, soups and condiments. Each box can hold 10 to 50 bags. The loading speed of the box is matched with that of the bag filling machine. On the contrary, the time for each box is longer. Therefore, the operation mode of the machine is an intermittent index type. The bag products are automatically put into the box and counted, and the bag is automatically rotated after being filled. Bit. The process of placing empty boxes, taking full boxes, and closing boxes is performed by an operator. The general productivity is 50 to 70 sachets/min (one sachet per time) or 100 to 140 sachets/min (two sachets at a time), which should be matched with the productivity of the sachet packaging machine. Semi-automatic cartoning machines use mostly hand-mounted products, so the cartoning methods are mostly vertical and easy to fill.
The schematic diagram of the semi-automatic cartoning process is shown in Figure 10-1. The carton blanks are processed and supplied by the carton maker. The carton is die-cut, and the blanks are crushed after being bonded to the side seam to form a blank. The blanks are loaded into the blank storage shelf by the operator in time, and then a special mechanism in the machine takes out one blank each time, and then expands it into a tube shape, and continues to advance the back cover (the bottom cover piece is inserted or glued ), Then the product is boxed by hand. When necessary, the instruction manual can be installed first, and then the seal can be closed and the boxing can be completed. If you need to print a mark, code, etc. can be carried out before the box blanks are removed.

3. In addition to the automatic cartoning method, blanks are placed in the blank storage rack, and the rest of the processes are performed by machines. The productivity of the automatic cartoning machine is high, generally 50 to 600 boxes/min, and ultra-high speed up to 1000 boxes. /min, but the machine structure is complex, operation and maintenance technical requirements are high, and equipment investment is also large. Product change types and size ranges are limited. In this regard, it is not as flexible as a semi-automatic cartoning machine. Therefore, it is suitable for packing a large number of products of a single type. Such as toothpaste, soap, pills and so on.
In the automatic loading process, the product is automatically loaded into the box by the machine. Therefore, the transverse loading method is generally adopted. That is, the direction in which the product is pushed into and the direction of movement of the blank conveyor belt are perpendicular to each other and within the same plane; When the bottling machine or hose machine is connected, the product is in a flat position before being loaded into the box. If the filling machine is in an upright position when it is output, place a guide plate at an appropriate position above the product conveyor to gradually turn the product over. Reload the box after the horizontal position. For products that are assembled into boxes, most of them are also suitable for horizontal loading. The transverse loading process is shown in Figure 10-2. However, for free-flowing powders, granules and lumpy products, such as refined rice, candy, soap flakes, detergents, etc., metal parts such as screws and nuts need to be counted or metered. In this case, the vertical direction is used to box the box. The box is in an upright position on the conveyor belt. When running under the material, the product falls on time and is loaded into the box.

The newly developed multi-cartoning method, in addition to the above-described transverse cartoning method, has the method of flattening a blank sheet (side non-adhesive) on a conveyor belt, and then pushing the stacked multiple products to the box. On the green sheet, it is then folded into a box, and then the side edge is closed, and the back side is sealed. Like the wrapping method, it is also called a wrapping (or folding) boxing method. See Figure 10-3.

Multi-packing no matter what the method is, because the machine needs to stack multiple pieces of the same product first, although the stacking speed is fast, the loading speed is still slow. The productivity of such cartoners is generally 5 to 50 boxes/min.
three. Cartoning equipment selection The cartoning method of the cartoning machine is determined according to the cartoning method. The production capacity and degree of automation of the cartoning machine are determined according to the frequency of the production volume, productivity, and variety of the product. First of all, it should be matched with the usual productivity of the production equipment, and at the same time, it should take into account that the peak production period of the product can guarantee the completion of the loading requirements. The degree of automation is not necessarily the higher the better, but it is appropriate to meet the technical level of operators and maintenance personnel in order to achieve the best economic efficiency. In addition, when ordering equipment, it is also necessary to consider whether the attachments required for certain processes of the product loading of the factory can be matched with the host.