RU187739U1 - Tray for packing bottles or cans of different diameters - Google Patents

Abstract

The utility model relates to cardboard packaging. The tray for packing bottles or cans of different diameters is made of a sheet blank of cardboard and consists of a rectangular bottom shape, whose corners are beveled to form an eight-sided shape. Four side walls of the same height extend from the bottom along the double bend lines, two of which, located opposite to each other, are made with end bendable valves, each of which is made of two parts interconnected through the bend line for attachment to adjacent side walls. Each line of inflection of the side walls from the bottom is made in the form of two parallel lines of bigs spaced apart from each other. 6 ill.

Description

The utility model relates to cardboard containers, namely, to cardboard trays made of corrugated cardboard or thick cardboard, and can be used as transport packaging used on automatic packaging lines.

Trays as packaging containers have been widely used in large enterprises for packaging cans or bottles on automatic lines. The tray is fed to such lines in the form of sheet blanks, then the batch of cans, calculated by the amount to fill the entire surface of the bottom of the workpiece, are laid on top of the part of the blank, which is the bottom of the future tray. And then the workpiece is fed to the post, on which the machine’s legs bend the side walls from the bottom, form the side walls and fix the valves of one wall to adjacent side walls. After that, at the next post, a shrink film (stretch film) is applied to the entire package and deposited under heat until the tray and cans are tightly tightened.

Such trays are presented on the sites "Cardboard Boxes" (http://www.city-pack.ru/types/166-lotki_banki.html), "PAKMIL" (http://packmill.ru/upakovka/), etc. Such the tray is made of a sheet blank of corrugated cardboard or dense brown cardboard, which consists of a rectangular bottom, from which side walls extend along the bend lines, two of which are located opposite to each other with end bendable valves. At the station of the automatic packaging line, the bottom pressed by the weight of cans or bottles to the supporting surface, which makes it possible to Cam machine to press simultaneously on all the side walls to their bending to the position pressed against the cans or bottles And then other tabs are bent end of the valve, pressed against the adjacent walls and are fixed by adhesive or staples. The process is simple and today it is technologically proven.

However, since the principle of all automatic lines is that all moving parts of the manipulators are adjusted to certain final movements and cannot self-adjust during packaging, it is necessary to use a tray for each size of cans or bottles, that is, a tray with such bottom dimensions, dimensions which are precisely calculated according to the size of the consignment of the packaged consignment. This leads to the fact that the automatic packaging line without changeover can only pack one size of cans or bottles. And when changing the size of the can or bottle transversely, you have to use a tray with other sizes and re-align the line. This feature of all automatic packaging lines leads to the need to have a large number of cardboard blanks of the same design, which differ only slightly from each other.

For example, the outer diameter of a standard aluminum beer can with a capacity of 0.5 l is 66.3-66.6 mm (GOST R 51756-2001 - Deep-drawn aluminum cans with easily openable lids. Technical conditions), and the diameter is an amber-colored beer bottle with a capacity of 0, 5 l is equal from 64 mm to 79 mm for the model of the SL-8001-SL-8011 series or 67 mm for a standard glass bottle or from 58 mm to 71 mm for transparent glass bottles of the SL-8604-SL-8666 series. It can be seen from the above examples that the difference between the transverse dimensions of the standard shapes of cylindrical containers, which are packed on automatic lines, sometimes reaches from 1 mm for each container to 10-11 mm. Given that 24 bottles (6 × 4 pcs.) Fit in a standard tray, the difference in size along the length of the side of the tray can reach from 6-8 mm to several centimeters. The dimensions of metal and glass and other containers in the form of containers are regulated by different regulatory documents , which determines a wide range of transverse dimensions and the need for the same number of sizes of the same workpiece design.

Known folding cardboard box, made in the form of a tray and formed from one blank with bend lines made in it, containing two longitudinal and two formed with tongue end valves, transverse walls, bent along the corresponding bend lines, and a bottom with two slots in the size of the tongues , each of the longitudinal and transverse walls is made uneven with elevated sections at its ends, the profile of all walls in height is made variable, while the height of the raised sections at the ends the walls are the same, each of the end valves in the workpiece is made with two inflection lines and is equipped with an additional section mating with the bottom, and the slots are placed at a distance from the end faces of the bottom, equal to the width of the additional section of the end valves (RU 22128, B65D 5/20, publ. 03/10/2002).

This design of the tray has a complex configuration, which makes it inconvenient for use on automatic packaging lines, this is due to the fact that the side walls are made of different heights and complex shapes, requiring the paws to pull different travel moves. This slows down the packaging process and reduces the throughput of the automatic packaging line.

To maintain the pace of packaging, it is necessary to synchronize the movements of all the legs bending the side walls, and bring them to the same value along the length of the stroke.

The closest solution adopted as a prototype is the design of a beer can tray made of sheet blanks made of corrugated cardboard or thick cardboard, which consists of a rectangular bottom shape, whose corners are beveled to form an eight-sided shape, while leaving the bottom along the inflection lines four side walls of the same height, two of which are located opposite to each other made with end bendable valves, each of which is made of two parts connected between through the inflection line, while folding, the side walls are bent from the bottom, and the inner parts of the valves are bent relative to their side walls and laid along bevels at the bottom corners, and the outer parts of the valves are bent relative to the internal and laid along adjacent adjacent side walls to which these parts of the valves are glued or fastened with brackets (a beer tray laid out in the "Branded Packaging" section of the Pakmil website of Pakmil, RU, on the Internet via online access at: ht tp: //packmill.ru/upakovka/, discovered in January 2017, a copy of the site’s page is attached).

In this tray, in the assembled state, the corner zones are not straight, but are beveled walls, which allows you to tightly pack cans and bottles in the corner zones. The exclusion of sharp corner zones also favorably affects the safety of shrinkable thermofilm, since sharp corners as elements of a breakthrough of the film are excluded. But with all this, the tray has one size and is designed for a specific jar. This size is taken into account in advance, and the bottom dimensions are selected for this size of cans. Accordingly, when changing the type of can or bottle, this tray becomes unusable.

This utility model is aimed at achieving a technical result consisting in the possibility of changing the bottom area of the tray to convert this tray from one size of packaged cans or bottles to another size.

The specified technical result is achieved by the fact that in the tray for packaging bottles and cans of different diameters, made of a sheet blank of cardboard and consisting of a rectangular bottom shape, whose corners are beveled to form an eight-sided shape, with four lateral lines extending from the bottom walls of the same height, two of which, located opposite to each other, are made with end bendable valves, each of which is made of two parts connected to each other through a line ne bend for attaching to adjacent side walls, each bend line of the side walls from the bottom is made in the form of two parallel lines of spacing apart from each other from each other.

In this case, it is possible that on one part of each valve, bends can be made directed across the valve to give an arcuate shape to the valve during bending. In addition, the inflection lines of each end valve may be

made in the form of two parallel spaced apart line of bits.

These features are significant and are interconnected with the formation of a stable set of essential features sufficient to obtain the desired technical result.

This utility model is illustrated by a specific example of execution, which, however, is not the only possible one, but clearly demonstrates the possibility of achieving the desired technical result.

In FIG. 1 is a general view of a sheet blank for manufacturing a tray;

FIG. 2 is a first example of assembling a tray with right angles from the blank of FIG. one;

FIG. 3 is a second example of assembling a tray with right angles from the blank of FIG. one;

FIG. 4 - a fragment of the valve on the sheet stock;

FIG. 5 - valve assembly, axonometric projection, fragment;

FIG. 6 is a third example of assembling a tray with rounded corners from the blank of FIG. one;

According to this utility model, the design of a tray for packaging cans or bottles on automatic packaging lines is considered, which makes it possible to pack at least two containers (bottles or cans) of different transverse dimensions (diameters).

A feature of the claimed tray, in contrast to the known trays, is that parallel fold lines are applied to the tray and, when forming, the tray can have two different internal sizes, depending on which fold lines the tray will be folded along: external or internal.

In general, a tray for packaging bottles or cans of different diameters is made of corrugated cardboard or cardboard. A sheet blank is cut out of this material (Fig. 1), which includes a rectangular bottom 1, whose corners 2 are beveled to form an eight-sided plan. In this regard, four sides 3 and 4 (two opposite each other) are considered the main, and side 5 at the beveled corners - secondary. The implementation of the bottom angles beveled is necessary to free up the space of the corner zones and use this free space to accommodate the end flaps 6 used to connect the side walls to each other.

Four side walls 3 and 4 of the same height extend from the bottom along the inflection lines, two 3 of which, located opposite to each other, are made with end bendable valves 6, each of which is made of two parts 7 and 8 (inner 7 and outer 8 parts), interconnected through the inflection line 9 for laying and attaching to adjacent side walls

A feature of the execution of the sheet blank is that each bend line of the side walls from the bottom is made in the form of two parallel spaced apart lines of bits 10. Bigi 10 along each side wall is made so that they begin and end on the sections of the beveled corners of the bottom. Thus, along the perimeter of the bottom, two contours of bits are formed, providing an inflection of each side wall along one of the inflection lines. It is not necessary that all side walls should be bent only along the external or internal contour of the bits. This design allows part of the walls to be bent only along the internal and the other along the external contour of the bits. This design allows you to artificially change the bottom area used for a specific size of cans or bottles. For example, if the distance between the bits on each side of the side wall or the bottom is, for example, 5 mm, then when using the external contour of the bits, the tray increases the size of the bottom by 10 mm, which allows you to use this tray for containers with a difference in diameter of up to 1.5- 1.6 mm (when packing cans or bottles according to the 6 × 4 pattern). Thus, according to this utility model, the tray, due to its transformation, can be simultaneously used for a fairly wide range of cylindrical containers, whose diameter differs by up to 2 mm. This eliminates the need for cutting a large number of blanks for specific container sizes, increases the profitability of the package, reduces the cost of the product in the package and eliminates the need for control on the coincidence of the size of the blanks with respect to the size of the containers to be packed. Moreover, due to the equality of the distances between the bits along each side wall, it is possible to use the same automatic packaging line without changing the adjustments along the paths of the legs of the bending walls. A design is possible in which the distances between the bigs can be unequal, that is, the bigi at one opposite side walls can be located at a distance from each other greater than the bigi at other side walls.

The use of end valves 6, consisting of two parts 7 and 8 connected in series through the inflection line, provides a number of advantages. When using the bottom bits along its outer contour, the end valves along the fold line with the side wall are completely bent and laid along the adjacent wall (Fig. 2). In this case, right angles are formed in the tray, and through holes are formed in the corner zones of the bottom, which can be considered as ventilation ducts for ventilation of the internal space of the bottle tray closed with a stretch film. If the bending of the side walls is carried out according to the bits of the inner contour of the bottom, then the inner part of the end valve is laid along the beveled corner of the bottom, and the external is laid along the adjacent wall (Fig. 3). It turns out a tray with beveled corner walls. As an option, in the tray, the bending of some walls can be done according to the bits of the outer contour, and the bending of other side walls can be done according to the bits of the inner contour. This allows you to vary combinations of dimensional options for the bottom, adjusting it to different sizes of packaged containers.

In order to make it possible to change the shape of the corner zones (from a right angle to a beveled wall), the length of the inner part of the end valve is equal to the length of the bevel of the bottom angle. Only in this case, this part of the valve can lie along the length of the bevel, forming a beveled end wall 11 (Fig. 3).

Given that during automatic assembly of the tray on the packaging line, tolerances are possible at the location of the workpiece or cans on the workpiece, etc. then it is proposed to perform all the bend lines of the end valves relative to the side walls and parts of the end valves relative to each other, that is, in the form of two parallel bits 12 spaced apart from each other. This allows you to compensate, within tolerances, the unsuccessful position of the container components or the offset during assembly . When folding the tray on the line, depending on the position of the side walls with respect to each other, the end valve is bent along the line of that big, relative to which its position can be aligned with the wall to which it should be attached.

In addition, short bigs 13 directed across the valve may be applied to the interior of the end valves. These short bigs are spaced apart from each other, which makes it possible to obtain a rounded corner 14 when assembling the tray, as shown in FIG. 4-6. In this case, the lateral part of the walls in the area of the slanted corner of the bottom becomes rounded, that is, the possibility of a tight fit to the shape of the can located in the corner of the bottom of the bottom. In principle, such short bigs used to give the valve roundness can also be on the outside.

This utility model is industrially applicable and can be manufactured using well-known technologies for cutting sheet blanks from cardboard or corrugated cardboard.

Claims (2)

1. A tray, mainly for packaging bottles or cans of different diameters, on an automatic packaging line made of a sheet of cardboard blank and consisting of a rectangular bottom, whose corners are beveled to form an eight-sided shape, with four lateral lines extending from the bottom walls of the same height, two of which, located opposite to each other, are made with end bendable valves, each of which is made of two parts connected to each other through a line ne bend for attaching to adjacent side walls, characterized in that each bend line of the side walls from the bottom is made in the form of two parallel lines of bigs spaced at the same distance from each other, made on the bottom surface, starting and ending at the sections of the beveled bottom angles, this length of the part of each valve, bent from the side wall, is equal to the length of the bevel angle of the bottom. 2. The tray according to claim 1, characterized in that on one part of each end valve there are made bigs directed across this valve.

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