JPH06253805A - Apparatus for removing impurity of orange berry or the like - Google Patents

Abstract

PURPOSE:To obtain an apparatus for removing impurities, capable of surely and efficiently removing the impurities mixed in orange berries and hardly requiring maintenance of sweeping, etc. CONSTITUTION:Plural removing rolls 2 axially provided with at least parts 5 having small diameter and parts having 3 large diameter are parallel and rotatably provided so as to form space for dropping impurities between large diameter parts 3 of removing rolls and form orange berries-dropping space 6 between small diameter parts 5 and provided in axially downwardly inclined state so as to turn the berries dropping space 6 to the downstream side and these rolls are rotated in the same directions and the berries are fed while supplying water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for automatically removing contaminants such as fruit granules, for example, mandarin orange fruit granules from which the inner skin has been removed by chemical treatment in a canned tangerine manufacturing process.

[0002]

2. Description of the Related Art Conventionally, in the manufacturing process of canned tangerines, the raw material mandarin oranges are peeled and divided, and then the inner fruit peel of the fruit grains is removed with a chemical and then the fruit grains are filled in a can. The grain group contains various foreign substances such as tangerine stripes, seeds, scabbards, small pieces of inner and outer skin, and debris of the grain, and these must be removed. Therefore, conventionally, as shown in FIG. 5, the foreign matter removing device 21 is provided between the chemical liquid processing and discharging conveyor 20 and the filling conveyor 30, and the tangerine grain p subjected to the chemical liquid is passed through the foreign material removing device, It is supplied to the filling conveyor 30. The foreign matter removing device 21 is a large-diameter cage drum 22.
An endless net conveyor 24 is provided between the large-diameter basket drum 23 and the small-diameter basket drum 23. When tangerine grains are supplied to the large-diameter basket drum 22, the net conveyor 24 meshes while passing the circumference of the basket drum. The foreign substances dropped from the net are received by the foreign substance receiving gutter 25 provided in the large-diameter basket drum, and the foreign substances dropped from the mesh of the net conveyor 24 between the basket drums 22 and 23 are installed in the meantime. The foreign matter is received by the article receiving tray 26 and the foreign matters are dropped and removed while being conveyed by the net conveyor between the basket type drums. However, this conventional foreign matter removing device has a drawback that mandarin orange stripes or the like are caught in the mesh of the net conveyor and immediately clogs it, so that not only must it be frequently cleaned, but also the reliable removal of foreign matters. could not. for that reason,
Conventionally, further, the impurities remaining on the filling conveyor are manually removed. Therefore, conventionally, there has been a problem that a lot of manpower is required to remove foreign matters and work efficiency is poor.

[0003]

DISCLOSURE OF THE INVENTION The present invention is intended to solve the above-mentioned problems of the conventional foreign matter removing device for articles such as mandarin orange grains, and to ensure the inclusion of foreign substances in the fruit grains. It is an object of the present invention to provide a contaminant removing device that can be efficiently and efficiently removed, does not require manual labor to remove contaminants, and requires almost no maintenance such as cleaning.

[0004]

The contaminant removing device of the present invention has a plurality of removing rolls having at least a large diameter portion and a small diameter portion in the axial direction, and the large diameter portions of the respective removal rolls are contaminated. It forms a foreign matter drop gap where objects can fall, and is rotatably provided in parallel between the small diameter portions so as to form a fruit drop drop gap where fruit drops fall, and the side where the grain drop gap is located is the downstream side. And a drive device for driving the respective removal rolls of the removal roll group to rotate in the same direction. To solve the above problems by having a configuration characterized in that the contaminants are removed by supplying fruit grains while supplying water to the removal roll group from the upstream end side of the group. I was able to. The removal roll is formed with a middle diameter part in the middle of the large diameter part, and by forming a contaminant drop gap in the gap between the middle diameter part and the large diameter part between the adjacent removal rolls, It is desirable because it can drop contaminants more reliably. Further, water may be supplied to the removal roll group together with the fruit grains from the hopper, but it is more desirable to separately provide a shower above the removal roll.

[0005]

By supplying the articles while flowing water to the removal rolls, the water always forms a film on the surface of the rotating removal rolls, and the frictional force is reduced. By the component force of the above, it slides on the surface of the removing roll and reaches the downstream part where the grain falls. While reaching the downstream side while the grains contact the rotating removal roll through the water film, contaminants fall along with water from the contaminant drop gaps in the large-diameter part and the middle-diameter part between the removal rolls and reach the downstream side. The grains are separated from the contaminants by dropping them on the net conveyor from the grain drop gap.

When all the removing rolls rotate in the same direction, the fruit grains located between the removing rolls are subjected to rotational contact in the winding direction on the left side and rotational contact in the flipping direction on the right side to balance them. Even if the removing rolls are not rotated alternately in the opposite directions so that the removing rolls on both sides are in rotational contact with each other in the direction of flipping up, the fruit grains are not caught. Therefore, even if the grain is supplied to any position in the width direction of the removal roll group, the contaminants can be removed,
Two rolls that rotate in opposite directions like a conventional roll sorter
Compared with the method of forming one sorting path with a set of rolls, the processing can be performed in half the area. Ie 2
It can have double the throughput. Moreover, by rotating the removing rolls in the same direction, the contaminants adhering to the surface of the fruit grain can be well separated, and the contaminants can be efficiently removed.

[0007]

Embodiments of the present invention will be described in detail below with reference to FIGS. The drawings show an apparatus for removing foreign substances from mandarin orange fruits, which is an embodiment of the present invention. In the figure, 1 is a frame, and a plurality of removing rolls 2 arranged at equal intervals in the frame are rotatably descended and inclined. It is arranged so that it can be rotationally driven in one direction at a constant speed by being in frictional contact with a drive belt 8 which is rotatably supported by the motor 7. The removing roll 2 includes a large diameter portion 3 and a small diameter portion 5 in the axial direction, a middle diameter portion 4 is formed in the middle of the large diameter portion 3, and a gap between the middle diameter portion and an adjacent removal roll and the large diameter portion. A foreign substance dropping gap is formed between the portions, and a fruit grain dropping gap 6 is formed between the small diameter portions. As a result, fine contaminants such as filaments such as stripes can be dropped and removed in the gap between the large diameter parts, and relatively large contaminants such as seeds and fruit particle fragments can be dropped and removed in the gap between the middle diameter parts. Further, the fruit grains are allowed to drop and be separated in the gap between the small diameter portions at the downstream end. In the present embodiment, the removal rolls are fixed to the shaft and a plurality of removal rolls each having a small diameter at both ends as shown in a partially enlarged view in FIG. (3 in the example) composed of a combination of split rolls, forming a large diameter portion with split rolls,
Although the small-diameter portion 5 is configured by the shaft portion projecting from the downstream end of the split roll, the removal roll may of course be integrally formed. Reference numeral 10 is a supply hopper for supplying the tangerine grains together with water to the upper end portion of the removal rolls, and 11 is a foreign matter receiving plate that is inclined below the back portion of the removal roll group. 12
Is a net conveyor that receives the tangerine grains that have fallen from the grain drop section and conveys them to the next step.

According to the experiments conducted by the present inventor, it is desirable that the removing rolls are installed at an inclination angle of 15 ° to 25 °. When the removing rolls are installed at an inclination angle of 20 °, the length of the removing rolls is about 10. The length is in the range of 700 to 750 mm, and the middle diameter part 4 is formed in the range of about 5 to 20 mm at the position that divides it into approximately three equal parts, and the gap between the large diameter parts between the parallel removing rolls is about 4 m.
By installing them in parallel so that the gap between the m and the middle part of the diameter was about 6 mm, almost all the impurities of ordinary mandarin orange fruit could be removed.

The tangerine-grain foreign matter removing device of this embodiment is constructed as described above and operates as follows. The mandarin orange grains from which the endothelium has been removed are constantly supplied together with water from the supply hopper 10 to the upper end portion of the removal roll group which is rotationally driven in the same direction at a constant speed. By feeding the berries with water,
Water constantly forms a film on the surface of the rotating removing roll, and the fruit grains slide on the surface of the removing roll to reach the downstream part where the fruit grains fall. In the meantime, foreign substances such as tangerine muscles and seeds mixed with the fruit grains fall on the foreign substance receiving plate 11 together with water from the gap between the large diameter portion and the middle diameter portion between the removal rolls and are removed. The tangerine berries that have reached the berries with the impurities removed are dropped onto the net conveyor 12 from the berry drop gaps 6 in the small diameter portion 5 and are conveyed to the next step of filling empty cans. In the above example, the tangerine grains were supplied together with water from the hopper 10 onto the removal rolls, but a shower is provided above the removal rolls,
Contaminants can be removed more reliably by constantly supplying a constant amount of water onto the removal roll.

[0010]

EFFECTS OF THE INVENTION The foreign matter removing device such as tangerine grains of the present invention has the following special effects. Since the berries just move while sliding on the roll surface where the water film is formed,
It can be processed at high speed without damaging the berries, and it does not cause clogging by foreign substances as in the past, and removes foreign substances reliably and efficiently without the need for manpower. It requires no maintenance such as cleaning. Since all the removing rolls are rotating in the same direction, even if the grain is fed to any position in the removing roll group width direction, the contaminants can be removed, and like the conventional roll sorter, Compared with the method of forming one sorting path by two pairs of rolls which rotate in the reverse direction, the processing can be performed in a half area. Moreover, by rotating the removing rolls in the same direction, the contaminants adhering to the surface of the fruit grain can be well separated, and the contaminants can be efficiently removed.

[Brief description of drawings]

FIG. 1 is a plan view of an apparatus for removing foreign substances such as tangerine grains according to an embodiment of the present invention.

FIG. 2 is a side view of the part.

FIG. 3 is a diagram illustrating the operation of a removing roller group.

FIG. 4 is a side view of a main part of a removing roller.

FIG. 5 is a schematic side view of a conventional mandarin orange grain removing device.

[Explanation of symbols]

 1 Frame 2 Removal Roll 3 Large Diameter Part 4 Medium Diameter Part 5 Small Diameter Part 6 Grain Drop Gap 7 Motor 10 Hopper

Claims (3)

[Claims] 1. A plurality of removing rolls each having at least a large diameter portion and a small diameter portion in the axial direction are provided, and a foreign matter dropping gap is formed between the large diameter portions of the removing rolls so that foreign matters can drop. The small parts are rotatably provided in parallel so as to form a grain drop gap where the grain falls, and the frame is tilted downward in the axial direction so that the side where the grain drop gap is located is the downstream side. A removing roll group provided, and a drive device that rotationally drives each of the removing rolls of the removing roll group in the same direction, and water is supplied to the removing roll group from the upstream end side of the removing roll group that rotates in the same direction. An apparatus for removing foreign matters such as tangerine fruit grains, which is configured to remove foreign matters by supplying fruit grains while feeding. 2. The removing roll has a middle diameter portion formed in the middle of the large diameter portion, and a contaminant dropping gap is formed by a gap between the middle diameter portion and an adjacent removal roll. The device for removing impurities such as mandarin orange grains according to claim 1. 3. The contaminant removing device according to claim 1, wherein a shower for supplying water is provided on a surface of the removing rolls of the removing roll group.