JP2015104327A - Food material sending method and hopper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sending method and a hopper device that can effectively press and send food materials in a hopper body to the lower direction.SOLUTION: A food material sending method is provided with a rotating shaft 13 in the vertical direction in a hopper body 5 with a cylindrical part 7 in the lower part of a taper-shaped hopper with a small diameter at the lower side, and sends food materials 15 in the hopper to a screw 17 provided in the rotating shaft in the cylindrical part 7. In the hopper, the rotating shaft 13 includes fan-shaped multiple paddles 21-27 provided at proper intervals in the vertical direction with different phases. Each of the paddles 21-27 is inclined at a slant to the rotating shaft 13, and the upper side paddles 21-25 have larger diameters. A rotary trajectory of upper side edges 23A-27A in the lower side paddles 23-27 are intersected and rotated to the rotary trajectory of lower side edges 21B-25B in the upper side paddles 21-25, and thereby the food materials 15 in the hopper are sequentially pressed and moved to the lower direction, and the food materials are sent to the screw 17.

Description

  The present invention relates to a food material feeding method for feeding an appropriate food material such as bread dough downward in a tapered hopper having a small diameter on the lower side, and a hopper device used in the method. The present invention relates to a food material delivery method and a hopper device that can effectively perform downward delivery and increase the pressure applied.

  An appropriate food material is put into a tapered hopper and is sent downward by a screw rotatably provided in the hopper. There are Patent Documents 1, 2, and 3 as prior art documents that are considered to be related to the present invention.

JP-A-7-39359 Japanese Utility Model Publication No. 1-11036 Japanese Patent No. 4396806

  The configuration described in Patent Documents 1 and 2 is a configuration in which an outer hopper is divided into a plurality of parts in the vertical direction with respect to a fixed screw, and the divided hoppers are rotated at different rotational speeds. . That is, the configuration described in Patent Documents 1 and 2 is a configuration in which the food material in the hopper is to be delivered without applying a large compressive force.

  Patent Document 3 describes a configuration in which a plurality of blade portions that are symmetrically provided on a rotary shaft that is rotatably provided in a hopper and that are paired are provided at appropriate intervals in the vertical direction. The pair of blades provided in the uppermost blade part is provided with through holes in the vertical direction.

  In the conventional configuration as described above, the pressure for feeding the food material in the hopper downward is small. In addition, the frictional force between the food material and the inner peripheral surface of the hopper becomes smaller than the frictional force between the screw and the food material, and sometimes the food material rotates with the rotation of the screw. There is a problem that the feeding efficiency of the material is poor.

  The present invention has been made in view of the above-described problems. The food material in the hopper is provided with a vertical rotation shaft in a hopper main body having a cylindrical portion at the lower part of a tapered hopper having a small diameter on the lower side. The food material is sent to the screw provided in the rotating shaft in the cylindrical portion, and a plurality of paddles provided in the hopper at different intervals in the vertical direction with different phases from the rotating shaft. Each paddle is inclined with respect to the rotation axis, and the upper paddle is a paddle having a larger diameter, and the lower paddle has a lower side relative to the rotation trajectory of the lower edge of the upper paddle. The food material in the hopper is sequentially pushed and moved downward by crossing or rotating close to the rotation trajectory of the upper edge of the paddle, and the food material is delivered to the screw. It is.

  Further, in the food material delivery method, the food material positioned on the front side in the rotational direction of the upper edge of each paddle is in contact with the inner peripheral surface of the hopper on the upper side and the lower side of the rotation locus of the upper edge of each paddle. And the contact range in the circumferential direction of the food material with respect to the inner peripheral surface when viewed in the rotational direction of the upper edge is 180 ° or more in terms of the rotation direction angle, between the inner peripheral surface of the hopper and the food material. The frictional resistance is made larger than the frictional resistance between each paddle and the food material.

  In the food material delivery method, the uppermost paddle presses the food material downward only with the upper edge, the lower edge and the circumferential edge of the paddle.

  In addition, a lower side is provided with a vertical rotating shaft in a hopper body having a cylindrical portion at the lower portion of a tapered hopper having a small diameter, and a screw for feeding food material in the hopper body downward is provided in the cylindrical portion. In the hopper device, a plurality of paddles are provided at appropriate intervals in the vertical direction with different phases from the rotation shaft in the hopper, and each paddle is provided inclined with respect to the rotation shaft, In addition, the upper paddle has a larger diameter.

  Further, the hopper device is characterized in that the rotation trajectory of the lower edge of the upper paddle and the rotation trajectory of the upper edge of the lower paddle intersect or are close to each other.

  In the hopper device, the vertical dimension of each paddle is larger in the upper direction.

  In the hopper device, the uppermost paddle is provided with a passage allowing portion through which food material can pass in the vertical direction.

  In the hopper device, each of the paddles is formed of a plate material and is formed in a flat plate shape.

  The hopper device further includes a scraper holder that protrudes in a radial direction at an upper portion of the rotating shaft, and a scraper that is slidable in contact with an inner peripheral surface of the hopper and is rotatable in the radial direction on the scraper holder. It is characterized by being.

  According to the present invention, when the food material in the hopper is pressed and sent downward by the paddle provided to be inclined on the rotation shaft, the next paddle on the lower side separated from the paddle in the rotation direction is out of phase with the paddle. It acts on the material and feeds it downward. Therefore, the food material can be prevented from rotating with the rotation of the paddle, the pressing force for feeding the food material downward can be increased, and the food material can be efficiently fed downward. It can be done.

It is explanatory drawing which carried out the cross section and showed the structure of the hopper apparatus which concerns on embodiment of this invention. It is explanatory drawing which carried out the cross section and showed the structure of the hopper apparatus which concerns on embodiment of this invention. It is explanatory drawing which shows 2nd Embodiment which changed the form of the uppermost paddle and the paddle of the lower side, and the attachment form with respect to a rotating shaft. It is explanatory drawing which shows 3rd Embodiment which changed the form of the uppermost paddle and the paddle of the lower side, and the attachment form with respect to a rotating shaft. It is explanatory drawing which shows 4th Embodiment which changed the form of the uppermost paddle and the paddle of the lower side, and the attachment form with respect to a rotating shaft. It is explanatory drawing which shows 5th Embodiment which changed the form of the uppermost paddle and the paddle of the lower side, and the attachment form with respect to a rotating shaft. It is explanatory drawing which shows 6th Embodiment which changed the form of the paddle of the uppermost part and its lower paddle, and the attachment form with respect to a rotating shaft. It is explanatory drawing which shows 7th Embodiment which changed the form of the uppermost paddle and its lower paddle, and the attachment form with respect to a rotating shaft. It is explanatory drawing which shows 8th Embodiment which changed the form of the uppermost paddle and its lower paddle, and the attachment form with respect to a rotating shaft.

  Hereinafter, a hopper device according to an embodiment of the present invention will be described with reference to the drawings. The hopper device according to the present invention performs the delivery of food materials such as the outer skin material and the inner packaging material in an apparatus for manufacturing the packaged food having a structure in which the inner packaging material such as rice cake is wrapped with the outer skin material such as bread dough. It is used as a hopper device. Since the food product manufacturing apparatus for manufacturing the encapsulated food wrapped with the inner packaging material with the outer skin material is already well known, detailed description of the food product manufacturing apparatus is omitted. The hopper apparatus according to the present invention is not limited to the hopper in the food product manufacturing apparatus as described above.

  As shown in a sectional view in FIG. 1, a hopper device 1 according to an embodiment of the present invention includes a detachable drive frame 3 on a base frame (not shown) in a food product manufacturing apparatus (not shown). A hopper body 5 is provided on the drive frame 3. The hopper body 5 includes a cylindrical portion 7 erected on the drive frame 3, and an upper portion of the cylindrical portion 7 is integrally provided with a lower hopper 9 having a tapered shape with a small diameter on the lower side. An upper hopper 11 is detachably provided on the lower hopper 9.

  A vertical rotating shaft 13 is provided in the hopper body 5. A large diameter portion 13 </ b> A is provided at the lower end portion of the rotating shaft 13. The large-diameter portion 13A is detachably linked to a vertical drive shaft (not shown) in a rotary drive mechanism provided in the drive frame 3. The rotational drive mechanism in the drive frame 3 is appropriately interlocked with a drive motor (not shown) provided at appropriate positions inside and outside the drive frame 3. Therefore, the rotary shaft 13 is rotated in conjunction with the drive motor.

  A screw 17 that integrally feeds the food material 15 in the hopper body 5 downward is integrally provided in the cylindrical portion 7 on the lower side of the rotary shaft 13. An appropriate transfer mechanism 19 such as a screw or a roots pump is provided below the cylindrical portion 7 to transfer the food material 15 pressure-fed downward by the screw 17 in the horizontal direction. The transfer mechanism 19 has a function of transferring the food material 15 to the food product manufacturing apparatus.

  A plurality of fan-shaped paddles 21, 23, 25, 27 for pressing and moving the food material 15 in the lower hopper 9 downward are provided at a portion where the rotating shaft 13 is positioned in the tapered lower hopper 9. It is provided at appropriate intervals in the vertical direction. Each of the paddles 21, 23, 25, 27 is formed in a flat fan shape by laser cutting a plate-like workpiece with a laser cutting machine. And each paddle 21,23,25,27 is integrally attached to the rotating shaft 13 by laser welding.

  When attaching the paddles 21 to 27 to the rotary shaft 13, the paddles 21 to 27 are inclined in the same direction with respect to the rotation direction of the rotary shaft 13. The inclination angles of the paddles 21 to 27 with respect to the axis of the rotary shaft 13 are the same. However, the inclination angles of the paddles 21 to 27 may be different from each other. When the paddles 21 to 27 are integrally attached to the rotary shaft 13 as described above, the linear upper edges 21A, 23A, 25A, and 27A that precede the rotation direction in the paddles 21 to 27 are the leading ends with respect to the horizontal. The side (outer peripheral side) is inclined so as to be higher. And in each paddle 21-27, the linear lower edge 21B, 23B, 25B, 27B following in a rotation direction is inclined so that the front end side (outer peripheral side) is lower than the horizontal.

  In the above configuration, the rotation trajectories of the lower edges 21B to 25B in the upper paddles 21 to 25 and the rotation trajectories of the upper edges 23A to 27A of the lower paddles 23 to 27 intersect each other. In other words, the upper edges 23A to 27A of the paddles 23 to 27 on the lower side than the rotation trajectories of the end portions (outer peripheral sides) of the lower edges 21B to 25B of the upper paddles 21 to 25 of the upper side. The upper side edges 23A to 27A in FIG. 2A are in a relation that the rotation trajectory of the tip side (outer peripheral side) end portion becomes higher (see FIG. 2B). It is desirable that the rotation trajectories of the lower edges 21B to 25B in the upper paddles 21 to 25 and the rotation trajectories of the upper edges 23A to 27A of the lower paddles 23 to 27 intersect each other. However, it may be configured to rotate close to each other without intersecting.

  As can be understood from FIGS. 1A and 1B, each of the paddles 21 to 27 is formed in a fan shape having a larger diameter toward the upper paddle. The vertical intervals (pitch) of the paddles 21 to 27 are arranged at a larger interval toward the upper side. Therefore, as the food material 15 is pressed and transferred downward in the hopper body 5, the higher the pressure is transferred. Further, only one paddle 21 to 27 is provided in each of the rotation regions in which the paddles 21 to 27 rotate (regions in the vertical dimensions H1, H2, H3, and H4 shown in FIG. 2B). It has been. As can be understood from the description of FIGS. 1A and 1B, the paddles 21 to 27 are integrally attached to the rotary shaft 13 with different phases.

  In the embodiment shown in FIGS. 1A and 1B, the angle between each upper edge 21A to 27A and each lower edge 21B to 27B in each paddle 21 to 27 is 120 °. The upper edges 23A to 27A of the lower paddles 23 to 27 with respect to the upper edges 21A to 25A of the upper paddles 21 to 25 are attached at phases different by 240 ° when viewed in the rotation direction (lower paddles). 23-27 upper edges 23A-27A are delayed by 240 °). As shown in FIG. 1, the uppermost paddle 21 is formed with an appropriately shaped vertical hole 21H.

  The hole 21H constitutes a passage allowing portion that allows the food material on the paddle 21 to pass downward, and is formed in a fan-shaped hole 21H. In other words, the paddle 21 is formed in a hole having a shape in which a strip portion having substantially the same width is left on the upper edge 21A, the lower edge 21B, and the peripheral edge. The shape of the hole 21H is not limited to a fan shape, and may be an appropriate shape such as a circle or a rectangle.

  An end cap 29 is detachably attached to the upper end portion of the rotating shaft 13, and the end cap 29 has a rod-shaped scraper holder 31 protruding horizontally in a direction (radial direction) perpendicular to the rotating shaft 13. Is provided. A holder bracket 33 is integrally provided at the tip of the scraper holder 31. The holder bracket 33 is provided with a scraper 35 that is movable along the tapered inner peripheral surface of the hopper body 5. More specifically, the holder bracket 33 is provided with a plurality of holder pins (not shown) protruding in the radial outward direction (radially outward direction) of the hopper body 5, and the engagement holes provided in the scraper 35 are provided in the above-described manner. The holder pin is movably fitted in the radially outward direction.

  Therefore, when the rotating shaft 13 is rotated, the scraper 35 is moved in the radial outward direction by centrifugal force, and is rotated in sliding contact with the inner peripheral surface of the hopper body 5. Therefore, the food material 15 adhering to the inner peripheral surface of the hopper body 5 is removed by the scraper 35.

  In the configuration as described above, when the food material 15 is put into the hopper body 5, the food material 15 is directly placed on the uppermost paddle 21, the lower paddle 23, and the lower paddle 25. Will be. A part of the food material 15 on the uppermost paddle 21 passes through the hole 21H and falls downward. And the upper edge 21A-27A in each paddle 21-27 is made to the food material 15 in the hopper main body 5 by rotationally driving the rotating shaft 13 so that the upper edge 21A-27A in each paddle 21-27 precedes. The food material 15 is sequentially pressed and sent (pressed and transferred) downward with the inclined lower surfaces of the paddles 21 to 27.

  Then, the food material 15 pressed and sent downward in the hopper main body 5 is further transferred downward by the screw 17 in the cylindrical portion 7 provided at the lower portion of the hopper main body 5, and provided in the lower side of the cylindrical portion 7. It is transferred by the transfer mechanism 19 toward the food product manufacturing apparatus.

  As described above, when the rotary shaft 13 is rotated and the food material 15 is pressed and moved downward by the paddles 21 to 27, the food material located on the front side in the rotation direction of the upper edges 21A to 27A of the paddles 21 to 27. 15 vertical thickness dimensions H1, H2, H3, and H4 (see FIG. 2B), and the vertical height dimensions H1, H2, H3, and H4 of the rotation trajectories of the paddles 21 to 27 are The dimensions are equal. That is, the food material 15 located in the rotation area in each of the paddles 21 to 27 has a truncated cone shape having height (thickness) dimensions of H1 to H4. The outer peripheral surface of the frustoconical food material 15 in each rotation region is in adhesive contact with the inner peripheral surface of the hopper body 5.

  Accordingly, the food material 15 does not tend to rotate integrally by direct contact with the paddles 21 to 27 (non-contact portion) in the circumferential length (excluding the circumferential range of the paddles 21 to 27). The length in the circumferential direction) is the length in the circumferential direction from the upper edges 21A to 27A to the lower edges 21B to 27B in the paddles 21 to 27 when viewed in the rotational direction.

  In other words, the food material 15 in an area that tends to accompany the paddles 21 to 27 due to contact friction (adhesion) with the upper and lower surfaces of the paddles 21 to 27 (areas corresponding to the upper and lower surfaces of the paddles 21 to 27). Of the food material 15) and the paddles 21 to 27 correspond to the upper and lower surfaces of each of the paddles 21 to 27 in the region that tends to come into contact with the inner peripheral surface of the hopper body 5 and stop. The frictional resistance between the food material 15) in the circumferential region other than the above-described region and the inner peripheral surface of the hopper body 5 is large. Accordingly, the food material 15 is prevented from rotating with the rotation of the paddles 21 to 27, and the food material 15 can be effectively pressed and sent downward by the rotation of the paddles 21 to 27. It can be done.

  As described above, when the food material 15 is pressed and sent downward by the paddles 21 to 27, since the hole 21H is formed in the uppermost paddle 21, the hole 21H is not formed in the paddle 21. Compared to the case, the downward pressing force is suppressed. That is, an excessive pressure applied to the food material 15 is suppressed.

  The rotation trajectories of the lower edges 21B to 25B in the upper paddles 21 to 25 and the rotation trajectories of the upper edges 23A to 27A of the lower paddles 23 to 27 intersect each other in the vertical direction. Therefore, the food material 15 pressed and sent downward by the upper paddles 21 to 25 is pressed and sent one after another by the lower paddles 23 to 27. As described above, the food material 15 pressed and sent downward is further pressed and sent downward by the screw 17 in the cylindrical portion 7. Then, the food material 17 is delivered to the food product manufacturing apparatus by the transfer mechanism 19.

  As can be understood from the above description, the plurality of paddles 21 to 27 provided at appropriate intervals in the vertical direction on the rotating shaft 13 are sequentially provided with different phases. Therefore, the frictional resistance due to the contact between each paddle 21 to 27 and the food material 15 is smaller than the frictional resistance due to the contact between the inner peripheral surface of the hopper body 5 and the food material 15. Therefore, it is possible to prevent the food material 15 from rotating integrally in the hopper body 5 with the rotation of the paddles 21 to 27, that is, following the rotation of the paddles 21 to 27. It is possible to effectively perform the downward pressure sending (pressing movement).

  In the above-described configuration, the rotation trajectories of the lower edges 21B to 25B of the upper paddles 21 to 25 and the rotation trajectories of the upper edges 23A to 27A of the lower paddles 23 to 27 intersect each other. is there. Therefore, the food material 15 pressed and sent downward by the upper paddles 21 to 25 can be sequentially and efficiently sent downward by the lower paddles 23 to 27.

  Moreover, in the said structure, since each paddle 21-27 is attached to the rotating shaft 13 in a different phase, the food material 15 is inserted | pinched between the upper and lower paddles, and it rotates integrally. There is nothing. Therefore, the downward pressing movement of the food material 15 can be effectively performed.

  FIG. 3 shows a second embodiment of each paddle 21, 23 provided on the rotating shaft 13. In the embodiment shown in FIG. 3, the angle of each paddle 21, 23 is set to 120 °, and the phase difference between each paddle 21, 23 is set to 180 °. In this embodiment, only the angles of the paddles 21 and 23 and the phases of the paddles 21 and 23 are different from the embodiment shown in FIGS. 1 and 2, and the relationship between the paddles 25 and 27 and the screw is as described above. It is the same as that described above, and has the same effect as the configuration described above.

  FIG. 4 shows a third embodiment of each paddle 21, 23 provided on the rotating shaft 13. In this embodiment, the angle of each paddle 21, 23 is set to 180 °, the phase of each paddle 21, 23 is 180 ° different, and the hole 21H in the uppermost paddle 21 is omitted. Shows the case. In this embodiment, the omission of the hole 21H improves the efficiency of downward pressing and sending by the paddle 21 and provides the same effect as the configuration described above.

  FIG. 5 shows a fourth embodiment of each paddle 21, 23 provided on the rotating shaft 13. In this embodiment, the case where the top paddle 21 and the lower paddle 23 have the same phase in the configuration shown in FIG. 4 is illustrated. Also in this embodiment, the same effects as described above can be obtained.

  FIG. 6 shows a fifth embodiment of the uppermost portion provided on the rotary shaft 13 and the paddles 21 and 23 below the uppermost portion. In this embodiment, the angle of the uppermost paddle 21 and the lower paddle 23 is 60 °, and the inclination angle with respect to the horizontal is set to 40 °. The angle and phase difference between the two lower paddles 25 and 27 are set to 120 ° as in the above-described configuration. The uppermost paddle 21 and the lower paddle 23 have a phase difference of 240 °. Also in this embodiment, the effects as described above can be achieved.

  FIG. 7 shows a sixth embodiment of the uppermost portion provided on the rotary shaft 13 and the paddles 21 and 23 below the uppermost portion. In this embodiment, the angle of the paddles 21 and 23 is set to 60 °, and the inclination angle with respect to the horizontal is set to 40 °. The phases of the paddles 21 and 23 are different by 180 °. Other configurations are the same as those of the above-described embodiment. Even in this configuration, the same effects as those of the above-described embodiment can be obtained.

  FIG. 8 shows a seventh embodiment of the uppermost portion provided on the rotating shaft 13 and the paddles 21 and 23 below the uppermost portion. In this embodiment, the angles of the paddles 21 and 23 are 60 ° and the phases are different by 120 °. The paddles 21 and 23 are inclined by 30 ° with respect to the horizontal. Other configurations are the same as those of the above-described embodiment. Even in this configuration, the same effects as those of the above-described embodiment can be obtained.

  In FIG. 9, the angles of the uppermost and lower paddles 21 and 23 are 60 °, and the phases are different by 180 °. The inclination angle with respect to the horizontal is set to 30 °. Even in this configuration, the same effects as those of the above-described embodiment can be obtained.

DESCRIPTION OF SYMBOLS 1 Hopper apparatus 5 Hopper main body 7 Cylindrical part 9 Lower hopper 11 Upper hopper 13 Rotating shaft 15 Food material 17 Screw 21, 23, 25, 27 Paddle 21A, 23A, 25A, 27A Upper edge 21B, 23B, 25B, 27B Lower edge 31 Scraper holder 35 Scraper

Claims (9)

  A hopper main body having a cylindrical portion at the lower portion of a tapered hopper having a small diameter on the lower side has a vertical rotating shaft, and the food material in the hopper is delivered to the screw provided on the rotating shaft in the cylindrical portion. A method for delivering a food material, comprising: a plurality of paddles in the hopper, each having a phase different from that of the rotating shaft and provided at appropriate intervals in the vertical direction, wherein each paddle is inclined with respect to the rotating shaft. The upper paddle is a paddle having a larger diameter, and the rotation trajectory of the upper edge of the lower paddle intersects or is close to the rotation trajectory of the lower edge of the upper paddle. A method for delivering a food material, wherein the food material in the hopper is sequentially pressed and moved downward by rotation, and the food material is delivered to the screw.   2. The food material feeding method according to claim 1, wherein the food material positioned on the front side in the rotational direction of the upper edge of each paddle has an inner peripheral surface of the hopper on the upper side and the lower side of the rotation trajectory of the upper edge of each paddle. And the contact range in the circumferential direction of the food material with respect to the inner peripheral surface when viewed in the rotation direction of the upper edge is 180 ° or more in terms of the rotation direction angle, and the hopper inner peripheral surface and the food material The food material delivery method is characterized in that the friction resistance between the paddle and the food material is larger than the friction resistance between the paddle and the food material.   The food material delivery method according to claim 1 or 2, wherein the uppermost paddle presses the food material downward only with the upper edge, the lower edge and the peripheral edge of the paddle. Delivery method of food materials.   A hopper provided with a vertical rotation shaft in a hopper main body having a cylindrical portion at the lower portion of a tapered hopper having a small diameter on the lower side, and a screw for feeding the food material in the hopper main body downward in the cylindrical portion In the hopper, a plurality of paddles are provided at appropriate intervals in the vertical direction with different phases with respect to the rotary shaft, and each paddle is provided inclined with respect to the rotary shaft, and A hopper device having a larger diameter than the paddle.   5. The hopper device according to claim 4, wherein the rotation trajectory of the lower edge in the upper paddle and the rotation trajectory of the upper edge in the lower paddle intersect or are close to each other. .   6. The hopper device according to claim 4, wherein the interval dimension in the vertical direction of each paddle is larger toward the upper side.   7. The hopper device according to claim 4, wherein the uppermost paddle is provided with a passage allowing portion through which food material can pass in the vertical direction.   The hopper device according to any one of claims 4 to 7, wherein each of the paddles is formed from a plate material and is formed in a flat plate shape.   The hopper device according to any one of claims 4 to 8, further comprising: a scraper holder protruding in a radial direction at an upper portion of the rotating shaft, wherein the scraper that is slidable in contact with an inner peripheral surface of the hopper is rotatable. The hopper device is provided so as to be movable in the radial direction.

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