FI98606B - Sorting apparatus - Google Patents

Abstract

In the sorter according to the invention, a first and a second band surface 1, 2 are present, said band surfaces being distinctly inclined or substantially vertical relative to the horizontal plane, and placed against each other in order to form an interspace which is narrowing downwards, and arranged to move in the same direction such that the distance of a point on either band surface 1, 2 to the other band surface 2, 1 is kept substantially constant in the sorting interspace. The sorter may as well comprise several sorting interspaces of the said type, formed by two band surfaces facing each other arranged onto each other in such a way that the sorting interspace is always narrowing more than the sorting interspace above it. Goods in different size groups are obtained from different heights of the sorting interspace, or each size group is obtained from its own sorting interspace. <IMAGE>

Description

98606

Sorting machine Sorting machines

The invention relates to a sorting device for sorting bulk goods, for example roots, by size.

It is known to carry out sorting according to the size of the bulk by means of various screening arrangements. For example, for sorting potatoes, there are devices for sorting potatoes into different size classes by moving them, for example by vibration, over successive screens, for example three different screens, where the hole size in the direction of movement of the potatoes increases. The disadvantage of such a device and the like is, firstly, the noise and, secondly, that the surface of the goods to be sorted, such as potatoes, is easily broken when it is vibrated and moved over the screens. In addition, when sorting potatoes, for example, vibration raises dust in the air. For the sorting of potatoes, there are also devices in which the potatoes come on rotating rollers arranged at an increasing distance from each other in the direction of movement.

* German application publication DE 3110024 discloses a fish sorting device in which two belt surfaces are arranged; move at a certain angle to each other and form a ***, widening, generally V-shaped sorting interval.

»··

The lower edges of the straps form a widening gap from which ··· *: 1. the youngest fish fall through the direction of travel first 30 and the largest last.

• · »· ·

The object of the invention is to provide a new type of sorting device, by means of which the above-mentioned problems are alleviated and which, on the other hand, is easily adjustable and can be used for different goods, such as different types of goods. • · · • · · • ·· • · 2 98606 for sorting rice, berries, fruit or even fish.

The sorting device according to the invention is characterized by what is defined in claim 1. Other claims define different embodiments of the invention.

In the device according to the invention, two belt surfaces are arranged to form a downwardly tapering sorting gap 1a-10, and the belt surfaces are arranged to move in the same direction so that the distance of one point selected from either belt surface from the other belt surface remains substantially constant. In other words, the arrangement is such that when an article has stopped in the sorting space 15 at some height, it moves in it evenly in the same plane, moved by both belt surfaces, because the distance between the surfaces remains the same at all times.

The device can be implemented in such a way that it has a plurality of sorting spacing arranged in the coverings so that the sorting spacing is always narrower than the sorting spacing above it. At least one size class item is obtained from each sorting interval. In such an embodiment, one of the two belt surfaces is preferably the same in all sorting intervals.

··· • · • · ··· i The device is preferably designed to have an intermediate ··· /: *. to adjust the sorting interval and / or its convergence.

·· * ... The sorting device according to the invention is excellently suitable, for example, for small farms with a wide range of *: **: cultivation. The sorting range can be easily adjusted, and the same can easily be set to suitable heights. lines, such as levels and troughs, to receive goods of different sizes from different parts of the sorting range. It is equally easy to adjust the speed of movement of the belts and thus to adapt the operation of the sorting device to the current need, for example to the accuracy requirements of the sorting or to the quantities of goods to be sorted. The sorting device according to the invention can also be developed particularly suitable for sorting products whose surface is easily breakable. This is because the operation of the device can be set so that abrasive abrasion against the surfaces does not occur.

Some embodiments of the invention will now be described in more detail with reference to the accompanying drawings, in which: Fig. 1 schematically shows an embodiment of a sorting device according to the invention from the end of a sorting interval and .0 25 * 'Figure 4 shows a top view of the device of Figure 3.

· 1 · ···

In Figure 1, reference numerals 1 and 2 indicate the belt surfaces, • · »*: 1. which move towards the viewer and form a sorting interval converging from top 30 downwards. Sorting of goods 5; .φ this case potatoes, is introduced in the direction of arrow 4 • · · moving conveyor 3 from above between the sorting • · · "of the viewer in relation to a distance from the end side. La- *: 2; The potatoes that fall into the cutting space stand at different heights according to their size »3: 35, and they move towards the viewer • · · .1. the buttons 1 and 2 bring them according to height to different receiving means 6, 7 and 8, for example to a sorting space on sloping flat surfaces extending from its end, from which potatoes of different sizes are obtained. 5A, 5B and 5C.

Figure 2 shows an embodiment of a sorting device according to the invention, in which several different sorting intervals of the coatings are arranged so that the lower one always tapers narrower than the sorting interval above it. The device comprises a wide belt surface 1 10 rotating around a roller 11 and belt surfaces 22, 23 and 24 rotating opposite the belt surface 1 with overlapping rollers 12, 13 and 14, each of which forms a sorting space with the surface 1. The article 5 is brought into the sorting slots from above from the end of the end farther from the viewer. The next sorting interval narrows to the width indicated by reference numeral 23d, and goods larger than this width which have fallen into this sorting space remain to be transported to this sorting space by the sleeves. The last sorting distance narrows to the width indicated by reference numeral 24d, and all goods entering this sorting space larger than this width remain to be conveyed by the belts to this sorting space. Sorting intervals can be arranged at low cost • ·

Jm · 25 so that the highest sorting interval is the longest in the direction of movement of the belt: * Γ and the lowest sorting interval, whereby the sorted goods can be very easily received and, deduced from the different sorting intervals.

Figures 3 and 4 show in more detail a possible implementation of the sorting device according to the invention, seen from the inlet end of the sorted goods. The sorting space 9 · · * · * 'is formed by belt surfaces 1 and 2. The respective belts rotate around the respective rollers 31 and 32 at this end of the device.

, ***: 35 The device has a frame 30 and supports rollers 31 and 32 ·· ·. *. subframes 34 and 35, respectively. The rollers are fastened to these subframes by means of fastening means indicated by reference numerals 42, 43, 44 and 45. The position of the roller 32 and at the same time, the narrowing of the sorting gap can be adjusted by adjusting means 41. At the end farther from the viewer 5 of the sorting device there is a funnel 37 for feeding the goods to be sorted, the position of which is better seen in Fig. 4. The fastening means 10 shown on the device of these rollers are indicated in Figure 4 by reference numerals 46 and 47. The rollers are rotated and the belts are moved by a suitable transmission and transmission by a motor 36, preferably, for example, an electric motor. The motor speed is preferably adjustable. The goods 5 entering the sorting range are sorted as previously described therein, the size A goods the highest, the size B goods below it and the size C goods the lowest. At the inlet end, the goods of different size classes enter the levels or troughs 6, 7 and 8, respectively, and move to the corresponding boxes 38, 39 and 40, respectively. opposite.

It will be apparent to those skilled in the art that the mukainen device of the invention may vary in many ways. Belts and belt surfaces **: can be implemented in many ways depending on the application of the device. Under the straps there are in many cases ·; *. it is advantageous to provide a good support surface so that the belt surfaces remain in the same plane during the movement and the sorted goods are not compressed when they come to the rollers or the like. In many cases it is advantageous for the belt surfaces • · • \ 'to move as accurately as possible at the same speed,: · *: but in some other cases it may be equally advantageous to arrange the movement of one belt faster than the other. than before. One skilled in the art will also see that there are many different possibilities for implementing speed control and sorting interval adjustment of belt surfaces. In many applications, dust and debris leave the goods to be sorted, and in the device according to the invention their removal 5 is easy to arrange by placing a suitable vacuum cleaner below the sorting interval, or the lowest sorting interval if there are several sorting intervals.

The invention may vary within the scope of the appended claims.

···· • · • · • · · · · · · · · · ♦ 1 ··· • · »· # ·· • · ·» · ··· • ··· · · · · »· · 9 ··· • · 1 • · · · ··· i: • · · φ • · • · · • ·· • · •« • · ♦ • · · »

Claims (6)

7 98606 Sorting device comprising belt surfaces (1, 2) which are clearly inclined or substantially 5 vertical to the first and second horizontal planes, characterized in that the belt surfaces (1, 2) are arranged in oppositely converging sorting intervals and arranged to move in the same direction (S), so that the distance of a point selected from either belt surface (1, 2) from the other belt surface (2, 1) remains substantially constant in the sorting interval. Sorting device according to claim 1, characterized in that it comprises a plurality of such sorting intervals (1, 22; 1, 23; 1, 24) formed by two arranged belt surfaces of the abutments, arranged in such a way that the sorting interval becomes narrower (23d, 24d). ) than the sorting interval above it (22d, 23d). Sorting device according to Claim 2, characterized in that one (1) of the two belt surfaces is the same in a plurality of sorting intervals (1, 22; 1, 23; 1, 24) arranged on the coverings. e ··· ♦ • e: V: 25 A sorting device according to any one of the preceding claims, characterized in that it further comprises an intermediate. (41) to adjust the sorting interval and / or its convergence. order. 4 · «··» * ·· • · · f · · * 30 Sorting device according to one of the preceding claims, characterized in that it further comprises an article (5A, ..) at the end of the sorting gap on the direction of movement of the belts (5, 7, 8). 5B, 5C) for receiving from different parts of the sorting range,, 3; 35 into which it can be divided in the direction of convergence. • ·· ♦ • · • · · ··· · · · • · 2 • ·· 3 • · 8 98606 Sorting device according to one of the preceding claims, characterized in that it further comprises means (3; 37) on the end of the sorting space opposite the direction of movement for feeding the goods (5) to be sorted into the sorting space (1, 2) from above. • t ·· • · • · • · · · · • · · ·%% 9 · • · · »• ft» • · ♦ · ··· i:: • · 1 ··· • · · * · · E ♦ · • · • · 1 • · · »» · ft • · • «· i: • · · φ # · · ♦ ·· * # • · ♦ · ·» · »« 9 nights