JP2005077177A - Combinatorial metering apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combinatorial metering apparatus suitable for measuring an object to be metered which easily absorbs vibrations and superior in transfer reliability, transfer performance, and the aspect of hygiene. <P>SOLUTION: In the combinatorial metering apparatus of this invention, the object to be metered M dispersed and transferred outward in a rotary dispersion part 10 is wiped into a pool hopper 40 by levers 20. It is therefore possible to appropriately and reliably transfer an article which easily absorbs vibrations to the pool hopper 40 even in the case that the article is handled as the object to be metered M. Since the object to be metered M is transferred to the pool hopper 40 by the wiping operation of the rod-like levers 20, it is possible to avoid restricting the width of its transfer path and reduce gap parts, which can be cleaned only with difficulty. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a combination weighing device that weighs each weight of an object to be weighed held in each of a plurality of hoppers and performs a combination calculation thereof.

  A combination weighing device that measures an object to be weighed, such as confectionery and fruit, having a variation in individual weights so as to have a total weight within an allowable range has been conventionally known as disclosed in, for example, Patent Document 1. . In the combination weighing device, the objects to be weighed are distributed and transported to a plurality of hoppers, each weight of the objects to be weighed held in each hopper is weighed, and the objects to be weighed are discharged by performing their combination calculation. Determine the hopper combination.

  In the conventional combination weighing device, in order to disperse and convey the objects to be weighed to a plurality of hoppers, the vibration of the feeder (feed unit) is often used. However, when the object to be weighed is an article that easily absorbs vibrations such as raw meat, a conveyance method using such vibration is not suitable, and it is difficult to convey the object to be weighed to the hopper. there were.

  In order to solve this problem, in Patent Document 1, a dispersion part (PATENT DOCUMENT 1 FIG. 1 reference numeral 12) that rotates around a vertical axis and a plurality of rotating bodies arranged on the outer periphery (FIG. 1 of Patent Document 1) A combination weighing device that disperses and conveys the objects to be weighed to a plurality of hoppers by a rotational movement with reference numeral 18) is disclosed.

JP-A-61-33411

  As described above, in the conventional combination weighing device, the objects to be weighed are distributed and conveyed to a plurality of hoppers using the vibration of the feeder. However, in such a conventional conveying method, the objects to be weighed vibrate. There is a problem that it is not suitable for an article that is easily absorbed.

  If the invention disclosed in Patent Document 1 described above is used, it is possible to transport an object to be weighed that easily absorbs vibrations to a plurality of hoppers. Exists.

  First, in the invention disclosed in Patent Document 1, it is assumed that when the rotary motion of the rotating body is stopped, the conveyance of the object to be weighed to the corresponding hopper is stopped. Even in a stopped state, when a large amount of objects to be weighed is sent from the dispersion unit to the rotating body, the object to be weighed on the rotating body is pushed out and supplied to the hopper. There are certainty problems.

  Secondly, in the invention disclosed in Patent Document 1, a plurality of cylindrical bodies (reference numeral 21 in FIG. 3 of Patent Document 1) and a rotating body for preventing the object to be weighed from staying in the center of the rotating body. Since the guide metal fitting for scraping off the object to be weighed (reference numeral 22 in FIG. 3 of Patent Document 1) is provided, the conveyance width of the object to be weighed is narrowed by this, which is more limited than the dimension of the hopper at the conveyance destination. There is a problem of the conveyance capability that only an object to be weighed with a different size can be conveyed.

  Thirdly, in the invention disclosed in Patent Document 1, the stock area in which the object to be weighed is idle in the hold state after the object to be weighed is input until the destination hopper is determined is narrow, There is a problem of the conveyance capability that an excessive load error of the object to be weighed easily occurs.

  Fourth, the combination weighing device according to the invention disclosed in Patent Document 1 has a configuration in which a plurality of rotating bodies are arranged to overlap each other, and has a structure having many gap portions that are difficult to clean. When the fresh food is used as an object to be weighed, there is a hygienic problem that germs are likely to propagate in the gaps.

  The present invention has been made in view of such circumstances, and provides a combination weighing device that is suitable for weighing an object to be weighed that easily absorbs vibration, and is excellent in conveyance reliability, conveyance capability, and hygiene. The purpose is to do.

  The invention according to claim 1 is a combination weighing device that measures each weight of an object to be weighed held in each of a plurality of hoppers and performs a combination calculation of the respective weights, and rotates in a horizontal plane. A rotating and dispersing unit that feeds an object to be measured horizontally outward, a plurality of hoppers that are arranged along the outer periphery of the rotating and dispersing unit, and are capable of holding the object to be weighed therein, and along the outer periphery of the rotating and dispersing unit And a plurality of levers arranged at positions corresponding to the plurality of hoppers, each of the plurality of levers corresponding to an object to be weighed sent by the rotation dispersion unit. And scraping into the inside of the hopper.

  The invention according to claim 2 is the combination weighing device according to claim 1, characterized in that the rotation dispersion portion is substantially circular in a plan view.

  The invention according to claim 3 is the combination weighing device according to claim 1 or claim 2, wherein the rotation dispersion portion protrudes in a conical shape whose upper surface is centered on the axis, and is inserted from above. A receiving portion for receiving an object to be weighed, and an annular stock portion which is disposed horizontally outside the receiving portion and has an upper surface formed horizontally.

  The invention according to claim 4 is the combination weighing device according to claim 3, wherein the receiving portion and the stock portion are integrally formed.

  The invention according to claim 5 is the combination weighing device according to any one of claims 1 to 4, wherein each of the plurality of levers scrapes an object to be weighed by a turning motion along a horizontal plane. It is characterized by that.

  The invention according to claim 6 is the combination weighing device according to any one of claims 1 to 5, wherein each of the plurality of levers has a shape in which a contact side with the object to be measured is bent in a concave shape. It is characterized by being.

  The invention according to claim 7 is the combination weighing device according to any one of claims 1 to 6, wherein each of the plurality of hoppers has an object to be weighed at a position facing a corresponding lever. An opening for receiving is provided, and the plurality of levers are arranged substantially at the same width as the width of the opening or at an interval wider than the width of the opening.

  The invention according to claim 8 is the combination weighing device according to any one of claims 1 to 7, wherein each of the plurality of levers closes between the corresponding hopper and the stock portion. It is possible.

  The invention according to claim 9 is the combination weighing device according to any one of claims 1 to 8, wherein the guide member guides an object to be weighed conveyed by the rotation dispersion unit in a horizontal outward direction. Is further provided.

  According to the first to ninth aspects of the present invention, when the object to be weighed is transported into the hopper, the object to be weighed is scraped into the hopper by the lever, so that vibration is easily absorbed as the object to be weighed. Even when handling an article, it can be conveyed appropriately and reliably. Further, according to the present invention, a member such as a cylindrical body of Patent Document 1, a guide fitting fixedly disposed to scrape off an object to be weighed, or the like becomes unnecessary, and therefore the width of the conveyance path is reduced. The object to be weighed can be transported into the hopper without limitation, and the transport capability can be improved. In addition, according to the present invention, by using a lever as a means for scraping an object to be weighed into a plurality of hoppers, the area occupied by the means can be reduced, and the area of the rotation dispersion portion accordingly. Can be taken widely. Therefore, it is possible to widen the stock area where the object to be weighed is held in the hold state before the object to be weighed is determined after the object to be weighed is put into the rotation dispersion unit, and the conveyance capacity is improved. Can be made. Moreover, according to this invention, since the location where members overlap can be decreased, the germ which propagates in the clearance gap part which is difficult to clean can be reduced. Therefore, hygiene can also be improved.

  In particular, according to the second aspect, the plurality of hoppers are arranged in an annular shape, and a portion (that is, the rotation dispersion portion of the present invention) for transporting an object to be weighed to the hopper is seen in a plan view. In FIG. In such a configuration, compared to a configuration in which a plurality of hoppers are arranged in a straight line, and a part for conveying the object to be weighed is linearly arranged, the area of the part to be conveyed is particularly large. Can be small. Therefore, the device floor area (footprint) occupied by the combination weighing device can be reduced.

  In particular, according to the third aspect of the present invention, due to the gravitational downward force due to gravity and the rotation of the receiving portion on the inclined surface of the receiving portion raised in a conical shape from the upper side, Both centrifugal force can be applied and the object to be weighed can be appropriately sent outward. Moreover, it can be put on hold by rotating an object to be weighed that has not been determined by the transport destination hopper on the annular stock section. Therefore, it is possible to suppress the occurrence of an excessive input error of the object to be weighed.

  In particular, according to the invention described in claim 4, since the receiving portion and the stock portion are integrally formed, the receiving portion and the stock portion can be formed even when the member is distorted due to a change in ambient temperature or the like. It is unlikely that there will be gaps that are difficult to clean. Therefore, it can be set as a sanitary structure in which various germs are hard to propagate.

  In particular, according to the fifth aspect of the present invention, since the object to be weighed is scraped into the hopper by a turning motion along the horizontal plane of the lever, the object to be weighed is measured regardless of the height dimension of the object to be weighed. It is possible to scrape things. In addition, if the lever performs a swivel movement along a horizontal plane, it can be arranged close to the surface of the rotation dispersion portion without being spaced from the surface of the rotation dispersion portion, and thus cleaning is easier. It can be a hygienic structure.

  In particular, according to the invention described in claim 6, since the contact side of the lever with the object to be weighed has a concave bent shape, the operation of scraping the object to be weighed into the hopper can be performed without spilling the object to be weighed. it can.

  In particular, according to the seventh aspect of the present invention, since the conveyance path width of the object to be weighed is not limited more than the opening dimension of the hopper, the ability to convey the object to be weighed can be further improved.

  In particular, according to the eighth aspect of the invention, each lever can close the space between the corresponding hopper and the stock portion, so that a large amount of objects to be weighed can be sent to the stock portion. In addition, it is possible to prevent the object to be weighed staying on the stock part from being extruded and supplied to the hopper.

  In particular, according to the invention described in claim 9, since the guide member is provided, the object to be weighed put on the rotation dispersion portion cannot be appropriately sent in the horizontal outward direction only by applying a centrifugal force or the like. Even so, the direction of the rotational movement of the object to be measured can be changed and guided to the outside. Therefore, the object to be weighed can be conveyed to the inside of the hopper more reliably.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.

<1. Configuration of Combination Weighing Device 1>
First, the configuration of the combination weighing device 1 according to the present invention will be described. FIG. 1 is a side sectional view of the combination weighing device 1, and FIG. 2 is a top view thereof. The combination weighing device 1 is a device that measures an object to be weighed M having variations in individual weights so as to have a total weight within an allowable range. 30, 14 pool hoppers 40, 14 weighing hoppers 50, 14 booster hoppers 60, and a collective discharge chute 70.

  The rotation dispersion unit 10 is a part that receives the object M supplied from above, rotates while holding the object M on its upper surface, and disperses and conveys the object M to the outside. The rotation dispersion unit 10 has a substantially disc shape with a horizontal posture as a whole, and a central portion of the lower surface thereof is connected to a rotation driving means 12 such as a motor via a rotation shaft 11. Therefore, by driving the rotation driving unit 12, the rotation dispersion unit 10 can be rotated in the horizontal plane together with the rotation shaft 11.

  Further, the rotation dispersion portion 10 includes a receiving portion 10a whose upper surface is raised in a conical shape centering on the rotation axis, and an annular stock portion 10b which is disposed on the horizontal outer side of the receiving portion 10a and has a horizontal upper surface. Is formed. The receiving portion 10a and the stock portion 10b are integrally formed of the same member. For this reason, even when the member is distorted due to a change in ambient temperature or the like, a gap portion that is difficult to clean does not appear between the receiving portion 10a and the stock portion 10b. Thus, the rotation dispersion | distribution part 10 has a hygienic structure in which various germs are hard to propagate.

  In addition, the to-be-measured object M is thrown into the receiving part 10a by falling from the bottom opening of the supply means 13a or 13b arrange | positioned above the receiving part 10a.

  The 14 levers 20 are parts for scraping into the pool hopper 40 to be described later the objects to be weighed M that are dispersed and conveyed outward in the rotation dispersion unit 10 and rotated on the stock unit 10b. Each lever 20 is a bar-like member disposed at a position along the outer periphery of the stock portion 10 b and corresponding to each of the 14 pool hoppers 40. One end of each lever 20 is connected to a known drive mechanism 22 such as an air cylinder or a motor via a rotating shaft 21 that is suspended at a position along the outer periphery of the stock portion 10b. Therefore, by controlling the drive of the drive mechanism 22, each lever 20 can perform a turning motion along a horizontal plane around the rotation shaft 21.

  FIG. 3 is a partially enlarged top view in the vicinity of the lever 20. As shown by the two-dot chain line in FIG. 3, the lever 20 is opened toward the radially inner side of the rotation dispersion unit 10 (hereinafter referred to as “open state”) S1 by the above-described turning motion, As shown by a solid line in FIG. 3, it is possible to switch between a closed state (hereinafter referred to as “closed state”) S <b> 2 along the outer periphery of the rotation dispersion unit 10. When the lever 20 in the open state S1 is present, the measurement object M rotating on the stock unit 10b hits the lever 20 and stops. And the lever 20 can scrape the to-be-measured item M into the corresponding pool hopper 40 by turning from the open state S1 to the closed state S2. A sensor 23 such as a photoelectric sensor is disposed above the space between each lever 20 in the opened state S1 and the outer periphery of the rotation dispersion unit 10, and the weighing object M is placed on each lever 20 in the opened state. It is detected by this sensor 23 whether or not it has stopped. Then, based on the detection signal of the sensor 23, the control unit 80 described later drives the drive mechanism 22 and the lever 20 is scraped.

  Each lever 20 has a shape in which the contact side 20a with the object M is bent in a concave shape. For this reason, it is possible to reliably receive the object to be weighed against the lever 20 and scrape it into the pool hopper 40 without spilling it off.

  Adjacent levers 20 are arranged at an interval L1 that is substantially the same as or wider than a lateral width L2 of an opening 40c of a pool hopper 40 described later. Therefore, the transport path of the object M to be measured from the stock unit 10b to the pool hopper 40 does not have a width that is more limited than the lateral width of the opening 40c. In particular, a member such as a cylindrical body shown in Patent Document 1 or a guide fitting fixedly disposed to scrape off the object to be weighed is not necessary. If the dimension is smaller than the opening dimension, the conveyance path width is not limited for the conveyance into the pool hopper 40. In this manner, the combination weighing device 1 can exhibit a high conveyance capability.

  Further, in this combination weighing device 1, since the object M is transported from the rotation dispersion unit 10 to the pool hopper 40 by the scraping operation of the rod-shaped lever 20, means for conveying the object M ( That is, the area occupied by the lever 20) can be reduced. And the area of the stock part 10b of the rotation dispersion | distribution part 10 can be taken as much as much. For this reason, many to-be-measured objects M can be rotated in the stock part 10b, and a high conveyance capability can be exhibited also in this point. This is particularly effective when all the pool hoppers 40 have the objects to be weighed M therein and the following objects to be weighed M must be put on hold on the rotation dispersion unit 10. Can be idled while being rotated on the stock portion 10b.

  Moreover, in this combination weighing | measuring apparatus 1, since the to-be-measured object M is conveyed from the rotation dispersion | distribution part 10 to the pool hopper 40 by the scraping operation | movement of such a rod-shaped lever 20, the location where members overlap is reduced. be able to. Therefore, it is possible to reduce germs that propagate in the gaps that are difficult to clean.

  Further, in this combination weighing device 1, the scraping operation of the object to be weighed M is performed not by a movement that approaches the object to be weighed M from above but by a turning movement that approaches the object to be weighed M from the side. For this reason, regardless of the height dimension of the object M, the object M can be scraped. Further, the lever 20 that performs the turning motion along the horizontal plane can be disposed not close to the upper surface of the stock portion 10b but close to the upper surface of the stock portion 10b. For this reason, it is easy to clean and has a hygienic structure.

  The guide member 30 is a member for appropriately guiding the object M to be measured outward on the rotation dispersion unit 10. The guide member 30 is disposed immediately above the upper surface of the rotation dispersion unit 10. However, since the guide member 30 is fixed to a frame (not shown) separate from the rotation dispersion unit 10, the guide member 30 is always stationary regardless of the rotation of the rotation dispersion unit 10. ing. Therefore, the object to be weighed M on the rotation dispersion unit 10 is rotated together with the rotation dispersion unit 10, and its movement is deflected outward by colliding with the guide surface of the guide member 30. The guide member 30 has a first guide surface 30a in charge of guiding the object to be weighed M on the receiving portion 10a, and a second guide surface 30b in charge of guiding the object to be weighed M on the stock portion 10b.

  FIG. 4 is a top view showing the shapes of the first guide surface 30 a and the second guide surface 30 b in relation to the shape of the rotation dispersion unit 10. The first guide surface 30a is a curved surface that is wound in the rotational direction RD of the rotation dispersion portion 10 as it goes outward, and is curved in a spiral shape when viewed from above. Further, the first guide surface 30a is formed at an arbitrary position so as to form an angle α (0 ° <α <90 °) in the rotation direction RD with respect to the radial line OP of the receiving portion 10a. For this reason, the to-be-measured object M rotating on the receiving part 10a is smoothly guided outside without being caught by the 1st guide surface 30a and stopping. On the other hand, the second guide surface 30b protrudes outward and is formed to form a positive angle β (0 ° <β <90 °) in the rotation direction RD with respect to the radial line OQ of the stock portion 10b. . For this reason, the measurement object M rotating on the stock portion 10b is smoothly guided to the outside without being caught by the second guide surface 30b and stopped.

  The pool hopper 40, the weighing hopper 50, and the booster hopper 60 are arranged along the outer periphery of the rotation dispersion unit 10, respectively, and are arranged at positions corresponding to the 14 levers 20 described above. . The structures of the hoppers 40, 50, 60 are substantially the same, and all have a cylindrical main body 40a, 50a, 60a that communicates vertically and a gate 40b, 50b, 60b that opens and closes the bottom. It has become. The gates 40b, 50b, 60b are respectively connected to opening / closing driving means (not shown) such as an air cylinder, and the opening / closing operation of the gates 40b, 50b, 60b is realized by the opening / closing driving means. Each hopper can hold the weighing object M in the state where the gate is closed, and can send the weighing object M downward in the state where the gate is opened.

  The 14 pool hoppers 40 are hoppers for temporarily holding the objects M to be weighed from the rotation dispersion unit 10 by the lever 20. As shown in FIG. 3, at the upper part of each pool hopper 40, an opening 40c facing each of the 14 levers 20 described above is formed.

  The 14 weighing hoppers 50 are hoppers for receiving the object to be weighed M sent from the pool hopper 40 and weighing its weight. Each weighing hopper 50 is disposed below each pool hopper 40 and is connected to weighing means 51 such as a load cell. The weighing means 51 can weigh the object M held in the weighing hopper 50 and transmit the measured value to the control unit 80 described later as a weighing signal.

  The fourteen booster hoppers 60 are hoppers that receive and temporarily hold the object to be weighed M sent from the weighing hopper 50 and are to be selected for combination calculation together with the weighing hopper 50. Each booster hopper 60 is disposed below each weighing hopper 50.

  The collective discharge chute 70 is a part for gathering the objects to be weighed M sent out from the weighing hopper 50 and the booster hopper 60 selected by the combination calculation downward. The collective discharge chute 70 has a funnel-shaped sliding surface that covers the lower positions of the 14 booster hoppers 60, and can slide the objects to be weighed M to one hopper 71 existing below the funnel-shaped sliding surfaces.

  The combination weighing device 1 includes a control unit 80 conceptually shown in FIG. 1 in addition to the above configuration. The control unit 80 is an electronic device that includes a CPU, a ROM, a RAM, an HDD, and the like. The control unit 80 is electrically connected to the drive points of each unit such as the above-described rotation drive unit 12, drive unit 22, and opening / closing drive units of the gates 40b, 50b, 60b, and operates and adjusts the drive thereof. be able to. The control unit 80 is also electrically connected to the 14 weighing means 51 described above, and can receive a weighing signal transmitted from the weighing means 51 and store the measured value. The control unit 80 can store the measurement values of the objects to be weighed M held in the hoppers of the 14 weighing hoppers 50 and the 14 booster hoppers 60. The booster hopper 60 below the weighing hopper 50 can be stored. When the weighing object M is sent to the weighing hopper 50, the information stored as the measurement value of the weighing object M held in the weighing hopper 50 is stored in the weighing object M held in the booster hopper 60 below the weighing object M. It is newly memorized as the measured value. Then, the control unit 80 executes a combination calculation process on the measurement values of the objects to be weighed M held in the 28 hoppers 50 and 60 thus stored, and sends out the objects to be weighed M. , 60 are determined.

  In this combination weighing device 1, the plurality of hoppers 40, 50, 60 are arranged in a multi-stage shape in an annular shape, and a portion (that is, a rotation dispersion unit) that conveys the object M to the pool hopper 40 inside thereof. 10) is arranged in a substantially circular shape in plan view. Such a configuration is a device in a plan view as compared with a configuration in which a plurality of hoppers are arranged in a straight line, and a part for conveying the object to be weighed M to the hopper is also arranged linearly along them. Can be reduced. In particular, it is possible to reduce the area in plan view of the portion that transports the object M to the hopper. Therefore, the device floor area (footprint) occupied by the combination weighing device 1 can be kept small.

<2. Operation of Combination Weighing Device 1>
Next, the weighing operation of the combination weighing device 1 having the above-described configuration will be described below. In addition, the following series of measurement operations proceeds when the control unit 80 described above electrically operates the drive locations of the respective units.

  First, the object to be weighed M falls from the supply means 13a or 13b located above the combination weighing device 1, and is supplied onto the receiving portion 10a that rotates in the horizontal plane. The object to be weighed M rotates on the receiving part 10a, and moves outward by receiving the centrifugal force due to the rotation. In addition, since the receiving portion 10a has a conical shape with the center of rotation as the center line and the upper surface is raised, a propulsive force that causes the object M to be directed outward is generated by the action of gravity. The weighing object M is more appropriately sent outward.

  Furthermore, if the object M collides with the first guide surface 30a of the guide member 30, the direction of the rotational movement is reliably deflected outward. In this way, even when an article (such as an article with extremely high tackiness) that cannot be properly sent in the horizontal outward direction only by applying a centrifugal force is handled as the object to be weighed M, the dispersion is appropriately performed. Transport can be performed. The object to be weighed M eventually reaches the stock unit 10b and performs a rotational motion on the stock unit 10b.

  On the other hand, of the 14 pool hoppers 40, when there is a pool hopper 40 that has been hollowed after sending the object M to the weighing hopper 50 below, the lever 20 corresponding to the pool hopper 40 is opened. It will be in state S1 and will wait for the to-be-measured object M which carries out rotational movement on the stock part 10b.

  When the object to be weighed M rotating in the stock portion 10b hits the lever 20 in the open state S1 and stops, the presence of the object is detected by the sensor 23, and the lever 20 swivels to the closed state S2, that is, , Scraping operation. The pool hopper 40 corresponding to the lever 20 receives the object M scraped by the lever 20 from the opening 40c and holds it inside. In the combination weighing device 1, the weighing object M is scraped into the pool hopper 40 by the lever 20 as described above. Therefore, even when an article that easily absorbs vibration is handled as the weighing object M, the combination weighing device 1 can be used appropriately and reliably. The conveyance can be performed.

  At this time, the lever 20 corresponding to the pool hopper 40 that has the object to be weighed M therein and cannot receive the subsequent object to be weighed M is in the closed state S2. Thus, since each lever 20 can close between the pool hopper 40 and the stock part 10b, even when a large amount of the object M is accumulated on the stock part 10b, the object to be weighed is stored. It is possible to prevent M from being extruded and supplied to the pool hopper 40.

  Further, if all the pool hoppers 40 have the objects to be weighed M therein and cannot accept the subsequent objects to be weighed M, all the levers 20 are in the closed state S2. In such a case, the state in which the destination pool hopper 40 is unconfirmed for the object M on the rotation dispersion unit 10 continues for a while. However, even in such a case, in the combination weighing device 1, the weighing object M whose transfer destination pool hopper 40 is unconfirmed is kept in the holding state by rotating it on the annular stock portion 10 b. Can do. Therefore, it is possible to suppress occurrence of an excessive charging error of the weighing object M.

  The 14 pool hoppers 40 and the 14 weighing hoppers 50 respectively open the gates after the lower hopper has finished sending the objects to be weighed and become hollow, and send the objects to be weighed M to the lower hoppers. . In this manner, the feeding operation among the pool hopper 40, the weighing hopper 50, and the booster hopper 60 is sequentially executed.

  When the weighing hopper 50 receives and holds the weighing object M from the upper pool hopper 40, the weight of the weighing object M in the weighing hopper 50 is measured by the weighing means 51 connected to the weighing hopper 50, and the weighing is performed. A signal is transmitted to the control unit 80. The control unit 80 receives the weighing signal transmitted from the weighing means 51 and stores the measured value as the measured value of the object M held in the weighing hopper 50.

  When the weighing object M is sent from a certain weighing hopper 50 to the booster hopper 60 below the weighing hopper 50, as described above, in the control unit 80, as the weighing value of the weighing object M held by the weighing hopper 50, The stored information is newly stored as a measured value of the object M held in the booster hopper 60 below.

  Then, the control unit 80 performs a combination calculation process on the measured values of the objects M to be weighed held in the 28 hoppers 50 and 60 stored in this manner, and falls within a preset allowable range. The combination of the hoppers 50 and 60 for feeding the object to be weighed M is selected so that the total weight is obtained. However, when a certain weighing hopper 50 is selected by the combination calculation, it is necessary to simultaneously select the booster hopper 60 below the weighing hopper 50.

  The objects to be weighed M sent out from the hoppers 50 and 60 selected by the combination calculation slide down on the sliding surface of the collective discharge chute 70 and gather in one hopper 71 below. Then, the objects to be weighed M gathered in the hopper 71 in this way are discharged as a result of being divided into the total weight within the allowable range.

<3. Other>
The main embodiment of the present invention has been described above, but the present invention is not limited to the above example. For example, the number of levers 20, pool hoppers 40, weighing hoppers 50, and booster hoppers 60 may be other than 14 each. Moreover, the structure which is not provided with the pool hopper 40 and the booster hopper 60 may be sufficient. When the configuration is such that the pool hopper 40 is not provided, the lever 20 scrapes the workpiece M into the weighing hopper 50.

  In addition, various design changes can be made within the scope of the present invention for the shape, arrangement, operation, and the like of each member such as the rotation dispersion unit 10, the lever 20, and the guide member 30.

2 is a side sectional view of the combination weighing device 1. FIG. It is a top view of the combination weighing device 1. FIG. 6 is a partially enlarged top view in the vicinity of the lever 20. 3 is a top view showing the shapes of the first guide surface 30a and the second guide surface 30b in relation to the shape of the rotation dispersion unit 10. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combination measuring device 10 Rotation dispersion | distribution part 10a Receiving part 10b Stock part 20 Lever 30 Guide member 40 Pool hopper 40c Opening 50 Weighing hopper 60 Booster hopper 80 Control part M Object to be weighed

Claims (9)

A combination weighing device that measures each weight of an object to be weighed held in each of a plurality of hoppers and performs a combination calculation of the respective weights,
A rotating and dispersing unit that feeds an object to be measured in a horizontal outward direction by rotating in a horizontal plane;
A plurality of hoppers arranged along the outer periphery of the rotation dispersion unit and capable of holding an object to be weighed therein;
A plurality of levers disposed along the outer periphery of the rotation dispersion portion and at positions corresponding to the plurality of hoppers;
With
Each of the plurality of levers scrapes the object to be weighed sent by the rotation dispersing unit into the corresponding hopper. The combination weighing device according to claim 1,
The rotation and dispersion part has a substantially circular shape in a plan view. A combination weighing device according to claim 1 or claim 2,
The rotational dispersion unit is
A receiving portion for receiving an object to be weighed from above;
An annular stock portion disposed on the horizontal outside of the receiving portion and having an upper surface formed horizontally;
A combination weighing device comprising: A combination weighing device according to claim 3,
The receiving portion and the stock portion are integrally formed, and the combination weighing device is characterized in that the receiving portion and the stock portion are integrally formed. A combination weighing device according to any one of claims 1 to 4,
Each of the plurality of levers scrapes an object to be weighed by a turning motion along a horizontal plane. A combination weighing device according to any one of claims 1 to 5,
Each of the plurality of levers has a shape in which a contact side with the object to be weighed is bent in a concave shape. A combination weighing device according to any one of claims 1 to 6,
Each of the plurality of hoppers has an opening for receiving an object to be weighed at a position facing a corresponding lever.
The combination weighing device, wherein the plurality of levers are disposed at substantially the same width as the lateral width of the opening or at a wider interval than the lateral width of the opening. A combination weighing device according to any one of claims 1 to 7,
Each of the plurality of levers is capable of closing between the corresponding hopper and the stock portion. A combination weighing device according to any one of claims 1 to 8,
A combination weighing device, further comprising a guide member for guiding an object to be weighed conveyed by the rotation dispersion unit in a horizontal outward direction.

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