纸箱尺寸设计基础知识（Basic knowledge of carton size design）

纸箱尺寸 设计 领导形象设计圆作业设计ao工艺污水处理厂设计附属工程施工组织设计清扫机器人结构设计 基础知识（Basic knowledge of carton size design） 纸箱尺寸设计基础知识(Basic knowledge of carton size design) Basic knowledge of carton size design Carton size is closely related to product protection, procurement costs, freight costs and so on. How to formulate the correct carton size becomes the key. Large quantities of products we can do a template box to test a given size of our goods, but in smaller quantities, when the required number of cartons only a few ten and asked to do a template box is wasted. So it is very important to understand the basic knowledge of carton size. First of all, let's get to know all kinds of paper. Three layers of paper commonly used (except the box) generally K3K, A3A, B3B, B3C, C3C, 333, W3B, W3C, W33, the thickness is about 0.3cm; three layers of paper box or three layers of paper (white box mounted E pit refers to the white box, three box layer changes with single thickness etc.) the number of grams of paper surface and slightly changed, but generally between 0.3 - 0.45cm, three layers of paper generally not more than 0.5cm. The commonly used five layers of paper (except the box) generally KC3CK, AC3CA, A=A, A=B, A=C, B=B, B=C, C=C, W=B and W=C, the thickness of 0.5cm above the A=A board may reach 0.7cm, but generally not more than 0.7cm. The commonly used seven layers of paper are generally K = K, A = A, B = B, the thickness of 1cm, but the minimum thickness not less than 0.8cm. Due to the need of the carton making process, the outer paper and inner layer paper can not be better than the outer surface layer, and can only be worse than the surface paper, so that the appearance of the outer surface of the carton can be prevented from happening when the indentation occurs. At the same time, due to the C paper is relatively crisp, in the dry autumn and winter season, should pay attention to the use of C=C cardboard, to prevent the emergence of carton burst. In the wet summer, the strength of the paperboard affected by the weather weakened, so in the light of valuable products or packaging protection more stringent requirements of products should pay attention to the paper, if the autumn and winter B=C summer carton, may need to upgrade to A=B or A=C the same carton, when the season of rotation can require rotation of paper. Some special cartons can be moisture-proof, waterproof and so on, but generally involve less. Next is to understand the size of the product and make the inside box size. Product size is the most important reference for the development of an inner box or a color box. In most cases, we can even add 0.5 - 0.7cm on the basis of the size of the product to make the three - ply carton size of the product. In the actual approval of the carton size, we need to take into account the product size tolerance, if the standard plastic parts, die-casting parts, stamping parts and other products of stable size, this method is accurate enough to formulate carton size. If the product is handicraft product, size deviation, or the resulting product size has a slight deviation by material effect, the product size should be set on the assembly line, making slightly bigger box. When some products can be folded, it is necessary to consider the stacking method of multiple products. In the premise of ensuring the quality and safety of the product, the product with the smallest volume and the largest amount is the best method. To decide the size of carton sizes to determine the way we can test our set box size is correct, if the carton has a number of digital products is less than the minimum size, then the carton size may be a problem (excluding the assembly can be disassembled and assembled products). In addition to accurate formulation of carton sizes, carton material is also very important and style, superior quality is excellent price, unfavorable to the manufacturing cost of the product, but the quality of the carton and forms can not meet the needs of product safety, reasonable selection of materials so we can solve the contradiction between the two. In the case of products of high quality, we should consider the way the bottom of the carton should be stable and firm, in addition to the choice of quality cardboard. The sharp angle of sharp angle of protection products can choose ordinary cardboard cartons and so on can be for the quality of light. Finally, at any time, the product can not be in the packaging box there is no place to shake the situation, this will greatly reduce the packaging box product protection function. Finally, make the outer box size. First of all, let's look at the general carton pricing formula: (length + width +5) * (width + high +3) *2/10000* unit price: length, width, height, cm per unit Then we used a 50*40*60cm box as an example, if the price is 5 yuan / square meters, the carton at the price of 9.785 yuan / month; two if we 50*40*30 the carton box at the price of 6.935 yuan / month, but need two boxes can be loaded into a crate of goods. From here we can first of all, to reduce the cost of packaging, we should first consider the premise of ensuring product safety, the maximum amount of products into the packaging box. Then, in the case of 50*50*50cm carton, the price is 10.815 yuan. In case of 50*40*62.5cm, the price of this case is 10.0225 yuan. From this we can see that the square carton is the most expensive carton in the case of the same volume, that is to say, the same quantity of the products, so we should try to avoid square cartons. Next, if we have 24 20*10*15cm carton box first we need to develop, with 10*6 as the length of the carton, 20 as the width, and then to 15*4 as the height of the carton, can develop a 63*21*62.5cm box, the price of 7.6985 yuan. Then we use 10*6 as the carton length, 20*2 as the width, and then 15*2 as the carton height, we can draw out a 63*41.5*32cm of the outer box, its single price 8.37675 yuan. Finally, we use 10*4 as the carton length, 20*2 as the width, and then 15*3 as the carton height, we can draw up a 42*41.5*47.5cm carton, the unit price is 8.142 yuan. From the above 3 sets of data can be drawn to carton height larger determinants of box price, compared to the same volume of the carton, the longer length, more narrow width, the height of the carton is cheaper, more close to the length and width, height of the lower box more expensive. However, the carton can not be made long, narrow and high, so that the stability and beauty of the box will be greatly reduced. Therefore, the reasonable length, width and proportion of the design have a greater impact on the cost of the carton. At the same time, when considering the length, width and size, it is necessary to consider that different packing methods may have different sizes, and whether the container truck can be loaded with the whole lot is also one of the designers' considerations. When inside and outside the box packaging, carton size is generally more difficult to develop a scale accurately, because there must be a gap with the inside and outside the box, which is a lot of primary designers difficult to consider a factor. For example, the above 20*10*15cm color box, when the 10cm side needs to install 6 rows, if calculated 60cm, plus the carton itself thickness 1.5cm that is 61.5cm, then the carton can not be installed, why? Because the 6 color boxes are installed side by side, there is a gap between the color box and the color box. How much should I take for such a gap? General should be about 0.2cm, which is 6 times that of 61.2cm 10.2cm, and its thickness is 1.5cm available to the carton size is 62.7cm. if you need something that is relatively loose desirable 63cm, relatively compact if more desirable 62.5cm. when using 20cm side row 2 row, the gap still need to add 0.2cm? The answer is no, in general we use five layers of paper box, and its thickness is 1.5cm, the views set aside a little loose, as we said before, "five layers of paper thickness of 0.5cm above the A=A board may reach 0.7cm, but generally not more than 0.7cm. in 3 months when the box side by side (the premise is correct in box size, no bulging phenomenon can be ignored) within the box space, but more than three general budget gap position, more than 6 boxes are arranged side by side should also be reserved to between 0.25 and 0.3cm. About carton height and carton length and width can be set as the same reason clearance, but in the size of Houhai need to increase 0.5cm, is the correct size, why? Let's think, there's no lid on either side of the length and width, but both sides of the top and bottom have a shake lid, So, roll up and down a lid, plus not more, 2 pieces of cardboard thickness? Some people ask why two pieces of cardboard are only 0.5cm in thickness? Since the weight of the goods is slightly lower than the bottom of the layer, and because we are long and wide on both sides of the reserved 1.5cm, plus 0.5cm, is not already 2cm, that is, the thickness of the 4 layer of cardboard? Finally talk about the carton printing, some customer barcode label in the specified location, so not all the marks are centered printed on the surface of the case, if the sticker size completely in the blank center after printing, so mark printing position has no effect on the bar code. But some of the larger size of the bar code or mark content is too much, and according to the normal printing center will affect the bar code when posting, you need to reserve the bar code position, and then proportionally reduce print fonts to protect the bar code posting position. When the carton is square, it will appear in the process of sealing the box. No matter that side can be pressed on another roll top, how can I seal it? We should know that it is a mark, then the side mark side cover first pressure, then mark on the swing cover side mark, this is the accurate method of sealing. "This paper carton, carton size refers to the full size", in the actual production process, most are outside carton factory size, but there are also some according to size, so in order to be that carton carton size size. A: 1, the appearance quality, printing quality, printing pattern writing clear, consistent color, bright light; printing position error box does not exceed 7mm, the box is not more than 4mm; 2, sealing quality: the box around no loopholes, the box cover after closure without seam, and stagger; 3 dimensional tolerances: box diameter design and tolerance should be maintained in a big box small box + 5mm, + 3mm, basically the same size; 4, cover folding times: corrugated box cover by opening and closing 180 folded repeatedly over 5 times, one or two kinds of surface layer and the inner layer of the box, three box length sum is not greater than 70mm layer crack in addition, joint; requirements specification, neat edge, no stack angle, box surface is not allowed to have obvious damage or stain. Two, the compressive strength and compressive strength of the carton carton factors are many goods packaging requirements of the most important quality index When testing, the corrugated box is placed between the two pressure plates, and the pressure is compressed to the pressure of the carton. That is the compressive strength of the carton. It is expressed by KN. 1, the compressive strength of predetermined carton carton requires a certain compressive strength, because the packaging of goods after stacking during storage and transportation in the lowest layer of the carton carton by upper pressure, so as not to collapse, must have the appropriate compressive strength, compressive strength is calculated by the following formula: P=KW (n-1) carton carton pressure P---- the strength of N W---- in the carton after loading weight, N n---- stacking layers K---- stacking stacking layers according to the safety factor of N stacking height H and the individual carton height h is calculated, according to the safety factor n=H/h stacking goods stacking layers to determine that the national standard: the storage period is less than 30d K=1.6 30d-100d K=1.65 storage period is greater than the storage period 100D K=2.0 2, according to the raw material after the calculated compressive strength the compressive strength of predetermined carton carton, carton board, should choose suitable to produce corrugated tile Corrugated boxes, avoid blind production waste; according to the strength of the pater calculated many formulas of compressive strength of corrugated boxes, but more concise and practical formula is kellicutt, it is suitable for estimating the compressive strength of 0201 type carton. 3, method of determining the compressive strength of corrugated boxes due to the influence of various factors in production process, finally use carton compressive strength of raw material production is not necessarily associated with the estimation results completely consistent, so the final accurate method to determine the compressive strength of corrugated box is the box of constant temperature and constant humidity treatment using carton compression testing machine for testing; test equipment in a small factory, can cover a plank in the box above, then stacked on the board equal weights, determining the carton strength whether meet the requirements; 4) the factors affecting the carton compressive strength 1) raw material quality, base paper is the decisive factor determining the carton compression strength, can be seen by the kellicutt formula. However, the impact of other conditions in the production of corrugated paperboard is also not allowed to ignore, such as the amount of adhesive, change, change, dipping, coating, composite processing, etc.. 2) the water carton is made of corrugated cardboard with high moisture content, or it will reduce its compressive strength for a long time in a humid environment. Fiber is a kind of strong water absorption. In rainy season and humidity in the air, the moisture balance between the moisture in the cardboard and the atmospheric environment is very important. 3) box type box refers to the type of box and the same type of box size ratio, they have a significant impact on the compressive strength. Some cartons are made of double layer corrugated cardboard, and the compressive strength is obviously improved compared with the single box with the same specifications. Under the same conditions, the higher the box body, the worse the stability and the lower the compressive strength. 4) printing and opening printing will reduce the compressive strength of the carton. In case the package has ventilation requirements, the opening of the box surface or the punching handle hole at the side of the box will reduce the carton strength, especially the large opening area and the deviation to one side, etc., and the influence is more obvious. 5) processing deviation in the box in the process of pressing improper, slotted deep, binding is not strong, it will reduce the compressive strength of boxes. Three, the dynamic performance test for some specific carton packaging of goods, such as ceramics, glass products, electrical appliances, instruments, and inspection of the carton cushion properties of goods, namely the simulation of transportation and handling, vibration, drop test; 1, drop test will be packaged goods after the carton press drop from the provisions of different attitude. Good cartons of goods inspection of a certain amount, or a loss when the number of carton drop. 2. The bevel impact test turns the carton on the pulley and then slides off the slope at a certain height and finally hits the block. It is similar to the emergency braking during transportation. 3, vibration test will be after the goods in cartons shaking table, which is the vibration of horizontal and vertical direction, or by two-way vibration, after a certain period of time after the inspection of commodities or goods cartons at failure time. 4, six angle drum rotation test, the carton into the impact plate with six corners of the drum, according to the required number of revolutions, rotation, and then check the goods, carton damage. The above dynamic experiments are destructive and improve the resistance to damage of cartons and commodities by using cushion linings, partitions or other protective measures in the packaging of goods. In addition, some cartons need to be tested for spraying, weather resistance, etc., according to the contract agreement between the two parties. 1. dimensional design Packing box drawings, dimensions, uniform dimensioning, dimensions, including technical requirements and other specifications,}, in millimeters, without indicating units of measurement. If other units are used, they must be noted. The actual size of the Board shall be based on the size data of the drawing, irrespective of the size of the drawing and the accuracy of the drawing. 2. cartons per carton 2.1. internal size is determined according to the actual situation. The tolerance is between + 1.5mm. 2.2. outside dimension is marked in technical requirement and marked with reference. The method is: long (mm) * * (mm) * high (mm). Of which: a length (L): box outsole length, side size; B, width (B): box outer area short, edge size; C height (H): box top surface to outsole size. Single wall corrugated carton: inside dimension, length direction +7mm; width direction +7mm; height +10mm. Double corrugated carton: inside dimension, length direction +12mm; width direction +12mm; height +15mm. 3., two and more cartons 3.1. single and double corrugated corrugated inner dimensions are single with length +4mm width direction of the outer carton size based on X2+4mm; the height direction + (3 ~ 5) mm; the height of the flat box with 3mm socket box with a handle or add 2mm. 3.2. external dimensioning method is: long (mm) * * width (mm) * height (mm). The calculation method is the same as that of a single carton. 3.3. more than two sets of size calculation, can refer to the size of the carton size calculation method for size design. 3.4. bulk packaging, packaging accessories size according to the actual situation.