DK143174B - MACHINE FOR CUTTING LONG-EXTENDED RED FRUITS - Google Patents

Description

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\ Ra / (11) PUBLICATION 143174 DENMARK isn mt.ci.3 a 23 n 15 / ολ '(21) Application No 5213/76 (22) Filed on 19 * HOV. 1976 (24) Race day 19 · HOV. 1976 (44) Application submitted and petition published on 1 3 · Jul · 1 9®1

DIRECTORATE OF

PATENT AND TRADE MARKET (3 °) priority saved from 20 November 1975 * 753264, pi (41) Aim. tllg. May 21, 1977 (71) INMEKTOR KY, Tullikatu 15 * 21100 Naantali, FX.

(72) Inventor: Agne Claes Persson, Kaivokatu 6 B 11, 21100 Naantali, FI. ~ (74) Plenipotentiary in the proceedings:

Patent law firm Magnus Jensens Eftf.

(54) Machine for trimming elongated root vegetables.

The present invention relates to a machine for trimming elongated root vegetables and of the kind specified in the preamble of claim 1.

After the usual mechanical peeling of elongated root fruits, such as carrots, these still have a portion of the top part whose color differs from the rest of the fruit. This part is cut hort.

During peeling and other industrial handling, the ends of a carrot are exposed to a greater surface pressure than the rest. Thus, handling damage occurs primarily at the ends. The damaged parts are cut away.

The cutting results in loss of raw material and the loss of value of the cut material increases as the process of refinement 1Λ 31 7 Λ - 2 progresses. Of course, minimal material loss can only be achieved when the cutting is done manually. However, the prior treatment will most often be mechanical, for example a steam peeling which cannot be performed manually and where the machine capacity depends on the mass, for example 3-8 tonnes / hour, while the manual capacity depends on the number. Manual cutting is thus extremely labor-intensive unless the prior machining is done with reduced capacity.

Of course, efforts have been made to develop machines for said cutting. A known machine assumes that carrots are or should be tapered, and the machine cuts a portion of predetermined length from the thicker end of the carrot. However, the design of this known machine is such that it is easily exposed to disruptions, and the machine is now practically unusable because the growers produce carrots which, for the greater benefit, must not be tapered.

Another known solution is based on a method of bringing carrots into a drum rotating on a horizontal shaft with beams placed on the walls beam-shaped, in the bottom of which a fixed knife performs the cutting. This method assumes rather limited size variation of the carrots, since these are guided forward to the cutting operation and supported under it by a cylinder whose dimensions are adapted to a specific carrot size.

A third known solution is based on a method in which the carrot falls through an opening in the wall of a drum which rotates about a horizontal axis, into a chamber which moves at the same speed as the opening. The chamber moves under a transverse brush so that the carrot is displaced toward the chamber where the cutting takes place. This method also assumes that the carrots supplied are of a fairly uniform size, because the openings in the drum wall may only pass one carrot at a time. Furthermore, according to this principle, a machine would be prohibitively expensive if it had a capacity similar to a previous peeler.

Finally, it is known to manually place carrots on a space-divided conveyor belt that moves the carrots for mechanical cutting.

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Here, too, the handling capacity is linked to the number and not to the mass of the carrots.

These disadvantages are avoided by the machine according to the invention, which is characterized by the characterizing part of claim 1.

The capacity of the machine is linked to the size of the carrot, but is so large that capacity variations depending on the yellow root size have no significant influence.

Compared to manual methods, the machine causes more cutting waste. But about 70% of this waste is due to the cutting of the top end, and cutting equal lengths at both ends of a carrot does not cause a doubling of the waste because the carrot is tapered to the other end.

By adjusting the distance between the support plates and the respective cutting means, the length of the cut ends can be adjusted.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be explained in more detail in connection with the drawing, in which: FIG. 1 is a plan view of a machine according to the invention; FIG. 2 is a schematic sectional view, on a larger scale, of a vertical section of the machine; FIG. 3 is the same but more detailed, and FIG. 4 shows a carrot placement in the cutting ends.

The products 1 to be treated are poured into a drum 11 rotating about a vertical axis. The inside of the drum 11 is provided with a screw path 12 with two turns. The rotating drum seeks to bring the products sloping towards it from the screw web 12, thereby arranging them in a row before falling from the screw web. By gravity, the products are guided into a primary cutting ring 3 on the drum 11 where they slide along a fixed support plate 7 until they meet a primary cutting member 2 which cuts a piece of the desired length corresponding to the distance between the support plate 7 and the cutting member 2. Immediately after, the product 1 encounters a baffle 6 against which the product rises, and at the end of the baffle the product is thrown toward a secondary cutting 5, which is firmly connected to the primary gutter - 4 - 143174 3, and presses downwardly onto a support plate 10 , wherein a piece of the other end is cut off by a secondary cutting means 4.

Finally, the product falls into a brake ring 13. After braking, the product falls onto a conveyor belt, for example.