JP2017079617A - Onions processing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an onions processing machine that prevents abrasion from sticking on the outer surface of the onions body during onions transfer, even if the onions have soft skin of a body section.SOLUTION: An onions processing machine can automatically cut off leaves and roots of harvested onions with leaves/roots. The onions processing machine has a pair of right and left transfer rolls 22 and 22 capable of drawing leaves of the onions with leaves/roots into downward between both rolls and capable of sending the onions with leaves/roots backward in a posture of the leaves suspending downward. Each transfer roll is provided with a transfer spiral ridge 22b spirally wound around an outer peripheral surface of each rotating drum 22a, and a spiral brush unit 22c formed by spirally transplanting bristles of brush materials of a small friction coefficient in the front side neighborhood position of the transfer spiral ridge 22b on the outer peripheral surface of each rotating drum 22a. Thereby, damages due to friction on the outer surface of the onions body in the transfer of the onions with leaves/roots can be prevented.SELECTED DRAWING: Figure 6

Description

  The present invention relates to an onion processing machine capable of continuously cutting leaves and roots of harvested leaves and rooted onions. In the present invention, the onions to be processed include onions themselves, including raccoon, garlic, lily roots, bulbs and the like. In the following description, onions themselves will be described as onions.

  In the harvested onions (simply expressed as onions in the following description), long leaves are continuous on the upper side of the onion main body portion, while roots are attached to the lower side of the onion main body portion. And in order to ship the harvested onion, it is necessary to excise a leaf and a root from the onion main-body part.

  By the way, the work of cutting onion leaves and roots is currently done manually by scissors one by one, but the onion leaf and root cutting work by hand is like this. The work efficiency is very poor and the excision work is continued for a long time.

  Therefore, the present applicant has already applied for a patent for Japanese Patent Application Laid-Open No. 2015-116176 (Patent Document 1) for automatically (mechanically) cutting onion leaves and roots. . In addition, although the title of this patent document 1 (Unexamined-Japanese-Patent No. 2015-116176) is "onion leaf / root continuous cutting machine", this "onion leaf / root continuous cutting machine" is also this application. It is called “onion processing machine” which is the name of the invention.

  As shown in FIGS. 8 to 10, the onion processing machine of Patent Document 1 is capable of sequentially cutting the leaves Tb and the roots Tc of the harvested leaves / rooted onions T in succession. The partial leaf cutting process and the root cutting process of the latter part are continuously performed so that the leaves and roots can be processed into onions (leaf / root-removed onions) T2.

  By the way, although the part which this invention makes object is the transfer roll 22 part of the front-stage leaf cutting process (leaf cutting unit 2) in the onion processing machine of FIGS. 8-10 (known by patent document 1), it mentions later. In the embodiment of the present invention (FIGS. 1 to 7), the basic components of the onion processing machine shown in FIGS. 8 to 10 (known) are used as they are as the onion processing machine. In order to understand the points to be improved in the onion processing machine of FIG. 10), an outline of the basic configuration of this known onion processing machine will be described.

  The known onion processing machines shown in FIGS. 8 to 10 are arranged in a row with a leaf excision unit 2, an upside down device 4, and a root excision unit 3, which will be described later, in a body case 1 having a considerable length in the front and rear direction. It is arranged and configured in a state.

  A front portion of the main body case 1 is provided with a loading portion (throwing chute) 11 for loading the leaf / rooted onion T, while the rear portion of the main body case 1 has leaves Tb and roots Tc cut off. A discharge part (discharge chute) 12 for discharging the root-removed onion T2 is provided.

  In the main body case 1, a leaf excision unit 2 for excising the leaf Tb of the leaf / rooted onion T input from the input portion 11 from the onion main body Ta portion, and a leaf obtained by excising the leaf Tb by the leaf excision unit 2 A root excision unit 3 for excising the root Tc of the removed / rooted onion T1 is provided in a state in which the leaf excision unit 2 is located on the front side and the root excision unit 3 is located on the rear side. Between the root excision unit 3, there is provided an upside down device 4 for turning up and down the leaf removal / rooted onion T1 from which the leaf Tb has been cut.

  The leaf excision unit 2 includes a pair of two transfer rolls 22 and 22 and a leaf / rooted onion transfer device 21 configured to allow the leaf / rooted onion T to be fed in a posture in which the leaf Tb is suspended downward. And a leaf cutting device 25 that cuts the root portion of the leaf Tb of the leaf / root onion T at a position in the vicinity of the terminal portion of the leaf / root onion transfer device 21.

  Both the transfer rolls 22 and 22 of the leaf / root onion transfer device 21 are obtained by winding a transfer spiral ridge 22b spirally around the outer peripheral surface of the rotary drum 22a. The two transfer rolls 22 and 22 are driven by the power unit so that the upper surfaces of the rolls rotate toward the inside (directions of arrows in FIG. 10).

  The leaf cutting device 25 is a device in which a pair of left and right disk blades 26, 26 are set in the vicinity of the terminal portion of the leaf / rooted onion transfer device 21. And this leaf cutting device 25 cuts the leaf Tb of the onion T which passes the installation part of both the disk blades 26 and 26 by the root part by rotating both the disk blades 26 and 26 with a power unit. To work. In the leaf removal / rooted onion T1 from which the leaf Tb has been cut by the leaf cutting device 25, the root Tc remains upward.

  The leaf removal / rooted onion T1 obtained by cutting the leaf Tb with the leaf cutting device 25 has the root Tc facing upward, and therefore when the leaf removal / rooted onion T1 is transferred to the start end of the next root cutting unit 3 Is turned upside down by the upside down device 4 so that the root Tc is directed downward. Since the upside down device 4 is not related to the gist of the present application, detailed description thereof is omitted.

  The root excision unit 3 is continuously installed in the vicinity of the rear side of the leaf cutting device 25 (both disk cutters 26, 26), and the two transfer rolls 32, 32 are used as a set to remove leaves and rooted onions. Leaf removal / rooted onion transfer device 31 for postponing T1 and root cutting device for cutting the root portion of the root Tc of leaf removal / rooted onion T1 at a position near the terminal end of the leaf removal / rooted onion transfer device 31 35. In addition, since this radical excision unit 3 is not related to the gist of the present application, detailed description thereof is omitted.

  And the well-known onion processing machine shown in FIGS. 8-10 functions as follows.

  When the harvested leaf / rooted onion T is input from the input portion 11 of the main body case 1, the onion T falls on the start end of the leaf cutting unit 2 (both transfer rollers 22, 22), and then the transfer rollers 22. , 22 rolls in a sideways posture facing forward and backward in the valley on the upper surface side, and then the leaf Tb of the onion T is drawn downward by the two transfer rolls 22, 22, and the leaf-rooted onion T moves the leaf Tb. It will be sent later in a posture that hangs downward.

  Next, at the end of the leaf resection unit 2, the root portion of the onion leaf Tb hanging downward is cut by the leaf cutting device 25, and the leaf removal / rooted onion T1 is turned upside down by the upside down device 4 ( The root Tc is directed downward), and the leaf-removed / rooted onion T1 is dropped onto the starting end portion between the two transfer rolls 32, 32 of the root excision unit 3 with the root Tc directed downward.

  Next, the leaf removal / rooted onion T1 dropped on the starting end of the root excision unit 3 is fed after the root Tc is not pulled down by the two transfer rolls 32, 32, and the end of the two transfer rolls 32, 32 is reached. By cutting the root Tc with the root cutting device 35 when discharged from the portion, the leaf / root-removed onion T2 (processed product) can be processed. The leaf / root-removed onion T2 from which the leaves and roots have been removed is discharged from the discharge unit 12 to the outside of the apparatus.

  As described above, in the known onion processing machines shown in FIGS. 8 to 10, the harvested leaves and rooted onions T are simply introduced sequentially from the input unit 11 of the main body case 1, and the discharge unit 12 is automatically thereafter performed. Can remove the leaf / root-removed onion T2.

JP, 2015-116176, A

  By the way, in the known onion processing machine shown in FIGS. 8 to 10, the following points to be improved were discovered in relation to the following background.

  That is, onions that are harvested early (especially very early onions) have a soft flesh and are preferred by consumers. On the other hand, the outer surface of the onion body is very soft when harvested. And, when the outer surface of the onion body is very soft in this way, the characteristics (difficulty) are that the surface of the onion body part is likely to be scratched (teared or twisted) by rubbing against a hard material (surface with a large friction coefficient). )

  On the other hand, in the known onion processing machine shown in FIGS. 8 to 10 described above, the transfer rolls 22 and 22 of the leaf cutting unit 2 are provided on the outer circumferential surface B (FIG. 10) of the rotary drum 22a. A material having a high friction coefficient (for example, hard rubber or semi-rigid synthetic resin) is used for the transfer spiral ridge 22b, while the transfer roll 22 is rotated. The cylinder 22a is a cylindrical body made of synthetic resin (for example, vinyl chloride resin), and the outer peripheral surface B of the rotary cylinder 22a is a smooth surface, but has a considerably large friction coefficient.

  Then, when the leaf / root onion T is put on both the transfer rolls 22, 22 of the leaf excision unit 2, the leaf Tb of the onion T is drawn downward by the both transfer rolls 22, 22, and the leaf / root is attached. The onions T are postponed in a posture in which the leaves Tb are suspended downward. At this time, the moving action on the onions T is performed only by the transfer spiral ridges 22b. The transfer spiral ridge 22b having a large friction coefficient is rubbed strongly. In addition, the rubbing position with respect to the outer surface A of the onion main body Ta by the spiral ridge 22b for transfer is substantially the same position over the entire movement range of the transfer roll 22.

  Therefore, in the known onion processing machines shown in FIGS. 8 to 10, when the skin of the onion body Ta is very soft like an extremely early onion, the transfer spiral having a large friction coefficient on the outer surface A of the onion body Ta. When the ridges 22b are rubbed strongly, there is a problem that the outer surface A of the onion main body Ta is easily scratched (skin tearing or tearing), and the quality and yield are lowered.

  Further, when the onion T is fed between the two transfer rolls 22 and 22, the leaf Tb portion of the leaf / rooted onion T is drawn downward on the outer peripheral surface of the two transfer rolls 22 and 22. 10, the outer surface (A, A portion) of the onion body Ta is strongly pressed against the outer peripheral surface B of the rotating drum 22a, as shown in FIG. The leaf / rooted onion T moves while the outer surface (A, A portion) of the onion body Ta is strongly rubbed by the outer peripheral surface B of the rotating drum 22a. In this case as well, if the skin of the onion body Ta is very soft, such as an extremely early onion, the outer surface A of the onion body Ta is likely to be scratched (skin tearing or dripping) (quality and yield). descend).

  Such an abrasion on the outer surface A of the onion body Ta also occurs on the outer surface of a lump crop (for example, rakkyo, garlic, lily root, bulb) having a very soft epidermis in addition to the onion itself.

  Therefore, the present invention improves the above-mentioned known defects (particularly the occurrence of scratches on the outer surface of the extremely early onion) in the front part (leaf cutting process part) of the known onion processing machine shown in FIGS. It is made for the purpose of providing the onion processing machine which can do.

  The present invention has the following configuration as means for solving the above problems.

[Invention of Claim 1 of the Present Application]
In the invention of claim 1 of the present application, as illustrated in FIGS. 1 to 7, the onions that can be automatically and successively cut out the leaves Tb and the roots Tc of the harvested leaves / rooted onions T in sequence. Intended for processing machines. In the description of the present application, the onion T may be simply expressed as the onion T.

  The onion processing machine according to claim 1 of the present application is capable of drawing the leaf Tb of the leaf / rooted onion T downward between the two rolls and allowing the leaf / rooted onion T to be postponed in a posture in which the leaf Tb hangs downward. A pair of transfer rolls 22, 22 is provided, and at least one of the transfer rolls 22, 22 is spirally wound around the outer peripheral surface of the rotating drum 22 a, and both transfer rolls 22, 22 rotate. In the vicinity of the front side of the transfer spiral ridge 22b on the outer peripheral surface of the rotating drum 22a and the transfer spiral ridge 22b that can press the onion body Ta portion of the leaf / rooted onion T and sequentially transfer it backward. And a spiral brush portion 22c formed by flocking a brush material having a friction coefficient smaller than the friction coefficient of the transfer spiral ridge 22b, and the onion T is transferred to both transfer rolls. It is characterized in that so as to be interposed between the spiral brush portion 22c when to Koso with the outer surface of the onion body Ta and-conveying helical rib 22b at 2,22.

  In the onion processing machine according to claim 1 of the present application, it is preferable in terms of onion transfer efficiency that each of the transfer rolls 22 and 22 is provided with a transfer spiral protrusion 22b and a spiral brush portion 22c. The transfer spiral ridge 22b and the spiral brush portion 22c may be provided only on one of the pair of transfer rolls.

  The transfer spiral ridge 22b in the present application is made of a material suitable for transfer (for example, made of hard rubber or semi-rigid synthetic resin) in order to reliably feed the onion body Ta part, The transfer spiral ridge 22b has a considerably large friction coefficient.

  On the other hand, the spiral brush portion 22c in the present application is obtained by flocking a flexible brush material (small bundle shape) spirally in a row on the outer peripheral surface B of the rotating drum 22a. This is much smaller than the friction coefficient of the transfer spiral ridge 22b. And this spiral brush part 22c is arrange | positioned in the near position (or the position which contacts the front surface of the spiral helix 22b for a transfer) with the very slight space | interval of the front side of the spiral helix 22b for a transfer. .

  In the onion processing machine according to claim 1 of the present application, as illustrated in FIGS. 1 to 3, when the harvested leaf / rooted onion T is input from the input unit 11 of the main body case 1, the onion T is converted into a leaf excision unit. After the two transfer rolls 22 and 22 are dropped onto the start ends, they roll in a sideways posture facing the front and rear at the upper side valley between the two transfer rolls 22 and 22, and then the leaves Tb of the onions T are While being pulled downward between the transfer rolls 22 and 22, the leaves and rooted onions T are sent in a posture in which the leaves Tb are suspended downward by the transfer spiral ridges 22b and 22b of the left and right rolls.

  By the way, it is mainly due to the push-out function of the transfer spiral ridge 22b that the onion T is fed between the transfer rolls 22 and 22, but in the onion extrusion using only the transfer spiral ridge 22b, Since the frictional coefficient of the spiral ridge 22b for use is large, the frictional force with respect to the outer surface A of the onion body Ta is increased. In particular, at the time of onion transfer by the transfer rolls 22, 22, substantially the same position of the outer surface A of the onion body Ta is pushed by the transfer spiral ridge 22b. Therefore, when the onion T to be processed is an extremely early onion and the onion body Ta has a very soft skin, the outer surface A of the onion body Ta is scratched (scratched or drowned) as in the known problem. ) Is likely to occur.

  Therefore, in the onion processing machine according to claim 1 of the present application, the friction of the transfer spiral ridge 22b is located near the front side of the transfer spiral ridge 22b having the function of causing the onions T in the two transfer rolls 22 and 22 to be fed back. The spiral brush portion 22c having a coefficient of friction smaller than the coefficient is provided, and when the onion T is fed later by the two transfer rolls 22, 22, the spiral brush portion 22c is connected to the outer surface A of the onion body Ta and the transfer spiral ridge. 22b. Accordingly, when the onion is transferred, the onion body Ta is indirectly pressed by the transfer spiral ridge 22b via the spiral brush portion 22c, so that the transfer spiral ridge 22b does not directly contact the outer surface A of the onion body Ta. .

  When the onion is transferred, the spiral brush portion 22c is rubbed against the outer surface A of the onion body Ta. Since the friction coefficient of the spiral brush portion 22c is smaller than the friction coefficient of the transfer spiral ridge 22b, The frictional force against the outer surface A is reduced.

[Invention of claim 2 of the present application]
The invention of claim 2 of the present application is the onion processing machine of claim 1, wherein the onion body Ta on the rotary drum 22 a of the transfer roll 22 provided with the transfer spiral ridge 22 b and the spiral brush portion 22 c can come into contact. A low-friction sheet 22e having an outer surface with a friction coefficient smaller than that of the outer peripheral surface of the rotary drum 22a is spirally wound around the outer peripheral surface of the rotary drum 22a.

  As the low-friction sheet 22e used in the onion processing machine according to claim 2, a fluorine resin tape or a Teflon (registered trademark) tape can be used, and fine short fibers D are provided on the outer surface of the sheet in the roll rotation direction. A lot of flocked hairs inclined in the opposite direction can also be used.

  In the onion processing machine according to claim 2, when the leaf / rooted onion T is fed back between the transfer rolls 22 and 22 as in the above claim 1, the outer surface A (particularly the lower surface portion) of the onion main body Ta. ) May come into contact with a portion corresponding to the outer peripheral surface B of the rotating drum 22a. At that time, if a low friction sheet 22e having an outer surface with a small friction coefficient is wound around the rotating drum 22a, the onion body Ta can be turned on even if the outer surface A of the onion body Ta contacts the corresponding portion of the rotating drum outer peripheral surface. The outer surface A of the main body Ta comes into contact with the outer surface of the low friction sheet 22e (there is no direct contact with the outer peripheral surface B of the rotating drum 22a having a large friction coefficient).

[Effect of the invention of claim 1 of the present application]
The onion processing machine according to claim 1 of the present invention is a transfer spiral ridge wound around the outer circumferential surface of the rotary drum 22a as at least one of the transfer rolls 22 and 22 for transferring leaves and rooted onions. Since the one provided with a spiral brush portion 22c having a small friction coefficient at a position near the front side of 22b is adopted, the onion body Ta portion pressed by the transfer spiral ridge 22b between the two transfer rolls 22 and 22, The paper is fed while being rubbed by the spiral brush portion 22c having a small friction coefficient without contacting the transfer spiral ridge 22b.

  Therefore, when the onion processing machine according to claim 1 is used, the spiral brush portion 22c having a small friction coefficient against the outer surface A of the onion main body Ta is rubbed only during the subsequent feeding of the onion T with leaves and roots. (It does not touch the transfer spiral ridge 22b having a large coefficient of friction), so even if the onion skin to be treated is very soft, such as an extremely fast-growing onion, it rubs against the outer surface A of the onion body Ta. Damage is less likely to occur (quality and yield are good).

[Effect of the invention of claim 2 of the present application]
The invention of claim 2 of the present application is the onion processing machine according to claim 1, wherein the outer peripheral surface of the rotary drum 22a, 22a of the roll has an outer surface having a friction coefficient smaller than that of the outer peripheral surface of the rotary drum 22a. Since the low friction sheet 22e is spirally wound, even if the outer surface A of the onion body Ta contacts the portion corresponding to the outer peripheral surface B of the rotary drum 22a, the outer surface A of the onion body Ta is low. It contacts the outer surface of 22e (it does not directly contact the rotating drum 22a).

  Therefore, in the onion processing machine of claim 2, in addition to the effect of the spiral brush portion 22c of claim 1, the outer peripheral surface B of the rotating drum 22a with respect to the outer surface A of the onion body Ta (with a large friction coefficient) Damage (occurrence of scratches) due to direct contact of the onion can be prevented, and even if the onion body Ta has a very soft skin, damage due to rubbing with the rotating drum 22a during onion transfer (occurrence of scratches) can be prevented. is there.

It is a top view of the onion processing machine of an example of this application. It is an II-II arrow line view of FIG. FIG. 3 is an enlarged arrow view of the III-III portion of FIG. 1. FIG. 2 is a partially enlarged plan view of both transfer roll portions of FIG. 1. FIG. 5 is an enlarged view taken along the line VV in FIG. 4, and is an explanatory view showing a state in which the outer surface of the onion body is in contact with the outer surface of the low friction sheet. It is VI-VI arrow line view of FIG. 5, and is explanatory drawing of the onion transfer state by the spiral protrusion for transfer. FIG. 7 is a partially enlarged view of FIG. 6. It is a top view (equivalent figure of FIG. 1) of the onion processing machine of patent document 1 (known). FIG. 9 is a view taken along arrow IX-IX in FIG. 8 (corresponding to FIG. 2). FIG. 9 is an enlarged arrow view (corresponding to FIG. 3) of the XX portion of FIG. 8.

[Example]
Hereinafter, the onion processing machine of the embodiment of the present application will be described with reference to FIGS. 1 to 7, and the onion processing machine of this embodiment is similar to the known onion processing machine shown in FIGS. 8 to 10. The harvested leaves / rooted onion T leaves Tb and roots Tc can be sequentially and automatically cut out. In addition, the onions processed by the onion processing machine of this embodiment also include radish, garlic, lily root, bulbs, etc. in addition to the onion itself, but even in the description of this embodiment, the onion itself is the onion itself. explain.

  By the way, the onion processing machine of the embodiment of the present invention shown in FIGS. 1 to 3 has the basic configuration of the above-described known onion processing machine (FIGS. 8 to 10), and the onion of the embodiment of the present application. For the description of the basic components (main body case 1, leaf cutting unit 2, upside down device 4, root cutting unit 3, etc.) in a similar processor, the above description of FIGS. Further, the basic function (function of sequentially cutting leaves Tb and roots Tc from leaves / rooted onions T) in the onion processing machine of the embodiment of the present application is the onion of the above-mentioned known (FIGS. 8 to 10). Since it is the same as that of a similar processor, the explanation there is used. In addition, what is attached | subjected with the same code | symbol about the onion processing machine of this-application Example (FIGS. 1-7) and the well-known (FIGS. 8-10) onion processing machine is mutually the same.

  When the onion processing machine of this embodiment is used, as shown in FIG. 1 and FIG. 2, the leaf / rooted onion transfer device 21 portion ( The onions T can be fed backward in the posture in which the leaf Tb portion is downward (both transfer rolls 22 and 22 portions) (FIGS. 2, 3, 5, and 6), and hang downward in the leaf cutting device 25 portion. The leaf Tb is cut at the base portion, the leaf removal / rooted onion T1 is turned upside down by the upside down device 4 (the root is turned downward), and the leaf removal / rooted onion transfer device 31 is seated on the starting end portion, The leaf removal / rooted onion transfer device 31 is moved backward while the root Tc of the onion T1 is kept in the downward posture, and the root portion of the root Tc hanging downward is cut off at the root cutting device 35 portion. Process It can be carried out sequentially and continuously to automatically.

  As described in the above section “Problems to be Solved by the Invention” as the background of the present invention, there are the following. That is, onions with early harvest time (especially very early onions) have a soft flesh and are preferred by consumers. On the other hand, the onion skin is very soft when harvested. If the skin of the onion body is very soft as described above, the onion body portion of the onion body portion is rubbed with a surface having a large friction coefficient (the transfer spiral ridge 22b of the transfer roll 22 or the outer peripheral surface B of the rotating drum 22a). There is a characteristic (difficulty) that the surface skin is easily scratched (teared or wrinkled).

  By the way, the transfer rolls 22 and 22 of the leaf excision unit 2 used in the embodiment of the present application (FIGS. 1 to 7) are also wound around the outer circumferential surface B of the rotary drum 22a with a spiral helix 22b for transfer spirally. Although a material having a large friction coefficient (for example, hard rubber or semi-rigid synthetic resin) is used for the transfer spiral ridge 22b, the rotary drum 22a of each transfer roll 22 is made of a synthetic resin (for example, chloride). A cylindrical body made of vinyl resin), and the outer peripheral surface B of the rotary drum 22a is a smooth surface, but has a considerably large friction coefficient.

  When the leaf / rooted onion T is fed between the two transfer rolls 22 and 22 of the leaf cutting unit 2 in a posture in which the leaf Tb is suspended downward, the outer surface A of the onion body Ta has a large friction coefficient. When pressed by the transfer spiral ridge 22b (the same place on the outer surface A is continuously pressed), the onion body Ta having a soft skin is likely to be scratched (skinned or squeezed) on the outer surface A. Become. In addition, when the outer surface A of the onion body Ta directly contacts the outer peripheral surface B of the rotating drum 22a as shown in FIG. Since the friction coefficient of the outer peripheral surface B is large, the soft onion body Ta is likely to cause scratches (skin tearing or skinning) on the outer surface A thereof.

  Therefore, in the onion processing machine according to the embodiment of the present invention, as a means for preventing the occurrence of scratches caused by the transfer spiral ridge 22b having a function of feeding the onion T backward, the vicinity of the front side of the transfer spiral ridge 22b. While the spiral brush portion 22c having a friction coefficient smaller than the friction coefficient of the transfer spiral ridge 22b is provided at the position, it is possible to prevent the generation of scratches caused by the outer peripheral surface B of the rotary drum 22a of each transfer roll 22, 22. As a means, a low-friction sheet 22e having an outer surface with a friction coefficient smaller than the friction coefficient of the outer peripheral surface B of the rotary drum 22a is spirally wound at a position where the onion body Ta can contact with the outer peripheral surface of the rotary drum 22a. ing.

  In the onion processing machine of this embodiment, a plurality of strips (3 shown in FIGS. 4 and 6 in the illustrated example) are located in the vicinity of the rear side of the spiral projection 22b for transfer in the rotary drum 22a of each transfer roll 22, 22. A spiral brush 22d for leaf drooping, in which one set of brushes is striped, is planted. The spiral brush 22d for hanging the leaves draws the leaf Tb of the leaf / rooted onion T introduced into the upper side valley between the left and right transfer rolls 22 and 22 to the lower side between the transfer rolls 22 and 22 and quickly The leaf / rooted onion T is placed in a posture in which the leaf Tb hangs downward.

  The spiral brush portion 22c will be described. The spiral brush portion 22c is obtained by flocking a flexible brush material (small bundles) in a row on the outer peripheral surface B of the rotary drum 22a in a row. The friction coefficient of the brush material used for the spiral brush portion 22c is considerably smaller than the friction coefficient of the transfer spiral ridge 22b. And this spiral brush part 22c is arrange | positioned in the near position (or the position which contacts the front surface of the spiral helix 22b for a transfer) with the very slight space | interval of the front side of the spiral helix 22b for a transfer. .

  Further, as the brush material of the spiral brush portion 22c, a material obtained by bundling a large number of flexible ultrafine fibers in a small bundle is used. The spiral brush portion 22c (brush material) is shown in FIG. As shown in the enlarged figure, during the onion transfer, the onion body Ta part is bent back by the resistance of the onion body Ta (transfer spiral ridge 22b side), and when the onion body Ta part loses its resistance, it returns to its original upright posture. To do. In addition, the protrusion length from the rotating drum outer peripheral surface B of this spiral brush part 22c (each brush material of a small bundle shape) is set to be substantially the same as the outer peripheral end of the spiral protrusion 22b for transfer in the illustrated example. However, it may be slightly lower (for example, about several millimeters) than the outer peripheral end of the transfer spiral ridge 22b.

  Then, when the onion T is fed later by the two transfer rolls 22 and 22, as shown in FIGS. 6 and 7, the spiral brush portion 22c is formed between the outer surface A of the onion body Ta and the transfer spiral ridge 22b. Since it is interposed therebetween, the onion body Ta is indirectly pressed by the transfer spiral ridge 22b via the spiral brush portion 22c.

  Thus, in the feed function portion at the time of onion transfer, only the spiral brush portion 22c is in contact with the outer surface A of the onion body Ta (the transfer spiral ridge 22b is not in direct contact), but this spiral brush portion 22c. Is smaller than the friction coefficient of the transfer spiral ridge 22b, the frictional force on the outer surface A of the onion body Ta is small.

  Therefore, in the functional part that feeds the onion T backward, only the spiral brush portion 22c having a small friction coefficient rubs against the outer surface A of the onion body Ta (does not contact the transfer spiral ridge 22b having a large friction coefficient). Therefore, even if the skin of the onion to be processed is very soft, such as an extremely fast-growing onion, damage due to rubbing on the outer surface A of the onion body Ta is less likely to occur (quality and yield are improved). Is effective.

  Next, the low-friction sheet 22e will be described. The low-friction sheet 22e is composed of the spiral brush portion 22c and the leaf drooping spiral brush 22d on the outer peripheral surface B of the rotary drum 22a of each transfer roll 22, 22. It is wound in a spiral.

  In this embodiment, the low-friction sheet 22e may be one in which a large number of fine short fibers D, D (see FIGS. 5 to 6) are planted on the outer surface of the sheet while being inclined in the direction opposite to the roll rotation direction. Adopted. Thus, in the low friction sheet 22e in which a large number of fine short fibers D, D... Are inclined in the direction opposite to the roll rotation direction on the outer surface of the sheet, the friction coefficient with respect to the outer surface A of the onion body Ta Is extremely small.

  In another embodiment, a fluorine resin tape or a Teflon (registered trademark) tape can be used as the low friction sheet 22e. However, these tapes are much smaller than the friction coefficient of the outer peripheral surface B of the rotary drum 22a. It is.

  When the onion is transferred, the outer surface A of the onion body Ta contacts the outer surface of the low friction sheet 22e having a small friction coefficient as shown in FIGS. 6 and 7 in the relationship between the onion body Ta and the rotary drum 22a ( Therefore, even if the onion body Ta has a very soft skin, damage (scratching) due to rubbing with the rotating drum 22a during onion transfer is less likely to occur.

  In addition, the onion processing machine of this example is particularly effective for an onion with a very soft skin such as an onion as described above, but even an onion that was normally harvested (the skin became hard). Of course, it can be processed without any problems.

  1 is a main body case, 2 is a leaf excision unit, 3 is a root excision unit, 4 is an upside down device, 21 is a leaf / rooted onion transfer device, 22 is a transfer roll, 22a is a rotating drum, 22b is a transfer spiral ridge, 22c is a spiral brush part, 22d is a spiral brush for drooping, 22e is a low friction sheet, T is a leaf / rooted onion, Ta is an onion body, Tb is a leaf, and Tc is a root.

Claims (2)

An onion processing machine capable of automatically cutting leaves (Tb) and roots (Tc) of harvested leaves and rooted onions (T),
The leaves (Tb) of the leaves / rooted onions (T) can be pulled down between the two rolls, and the leaves (Tb) with the leaves (Tb) hanging downwards are sent back. A pair of left and right transfer rolls (22, 22) to be obtained;
At least one transfer roll of each of the transfer rolls (22, 22) is spirally wound around the outer peripheral surface of the rotary drum (22a), and the transfer rolls (22, 22) are rotated to rotate the transfer roll (22, 22). The spiral ridge (22b) for transfer that can press the onion body (Ta) portion of the leaf / rooted onion (T) and sequentially transfer it backward, and the transfer spiral on the outer peripheral surface of the rotary drum (22a) A spiral brush portion (22c) formed by helically planting a brush material having a friction coefficient smaller than that of the transfer spiral projection (22b) at a position near the front side of the projection (22b); And
When the onions (T) are post-fed by the two transfer rolls (22, 22), the spiral brush portion (22c) is connected to the outer surface of the onions body (Ta) and the transfer spiral ridges (22b). Intervening between,
An onion processing machine characterized by that. In claim 1,
The rotary drum (22a) is arranged on the outer peripheral surface of the rotary drum (22a, 22a) of each transfer roll (22, 22) at a position where the onion body (Ta) can come into contact with the leaf / rooted onion (T). A low-friction sheet (22e) having an outer surface with a friction coefficient smaller than that of the outer peripheral surface is spirally wound.
An onion processing machine characterized by that.

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