WO2016143709A1 - Appareil de pesage par combinaison - Google Patents

Appareil de pesage par combinaison Download PDF

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Publication number
WO2016143709A1
WO2016143709A1 PCT/JP2016/056862 JP2016056862W WO2016143709A1 WO 2016143709 A1 WO2016143709 A1 WO 2016143709A1 JP 2016056862 W JP2016056862 W JP 2016056862W WO 2016143709 A1 WO2016143709 A1 WO 2016143709A1
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Prior art keywords
trough
supply
article
supply trough
combination weighing
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PCT/JP2016/056862
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English (en)
Japanese (ja)
Inventor
真治 武市
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株式会社イシダ
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Publication of WO2016143709A1 publication Critical patent/WO2016143709A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/387—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for combinatorial weighing, i.e. selecting a combination of articles whose total weight or number is closest to a desired value

Definitions

  • the present invention includes a combination weighing device, more specifically, two dispersion tables that disperse an article in a circumferential direction, and a supply unit that is disposed between the two dispersion tables and supplies the article to the dispersion table.
  • the present invention relates to a combination weighing device.
  • a combination weighing device that includes two dispersion tables that disperse articles in the circumferential direction and a supply unit that is disposed between the two dispersion tables and supplies articles to the dispersion table.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2014-105994
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2014-105994
  • a combination weighing device including a supply unit that conveys an article by the inclination of the trough and rotational vibration and supplies the article to a dispersion table is disclosed.
  • the supply means is also preferably configured in a compact manner.
  • the supply means has a trough for conveying an article as in Patent Document 1 (Japanese Patent Laid-Open No. 2014-105994)
  • the length of the trough in the conveyance direction is preferable. Is constructed as short as possible.
  • An object of the present invention is a combination weighing apparatus having two troughs for conveying articles to one of two dispersion tables each dispersing articles, and a combination weighing apparatus that is unlikely to cause shortage in the conveyance amount of articles by the troughs Is to provide.
  • the combination weighing device includes two distribution tables and supply means.
  • the dispersion table rotates to disperse the article supplied to the upper part in the circumferential direction.
  • the supply means is disposed between the two dispersion tables in a top view and supplies articles to the two dispersion tables.
  • the supply means includes two troughs that convey the article and two vibration units. Each of the two vibration units corresponds to one of the troughs and linearly vibrates the corresponding trough.
  • One trough that transports articles to one of the dispersion tables and the other trough that transports articles to the other of the dispersion tables are arranged such that their backs are adjacent to each other.
  • the trough is caused to linearly vibrate instead of rotational vibration, it is easy to stably convey the article by the trough, and suppress the shortage of the article conveyance amount by the trough. Is possible.
  • the combination weighing device is the combination weighing device according to the first aspect, wherein each of the vibration units is in the width direction of the corresponding trough perpendicular to the conveyance direction of the corresponding trough. It has a plurality of coils that are spaced apart from one another.
  • each excitation unit has a plurality of coils in the width direction of the corresponding trough, thereby ensuring a large amount of articles conveyed by the trough. It is possible. Further, in the combination weighing device according to the second aspect of the present invention, by having a plurality of coils, a larger surface area can be secured as compared with the case where one large coil is used, and further, the plurality of coils pass air. Since the gaps are arranged so as to ensure a gap, the heat dissipation of the coils can be maintained better than when one large coil is provided.
  • a combination weighing device is the combination weighing device according to the second aspect, wherein each of the coils of each excitation unit is directed to the trough side corresponding to the excitation unit, and It has N poles and S poles arranged in the trough transport direction corresponding to the vibration part.
  • each coil of the vibration unit has an N pole and an S pole arranged in the trough transport direction.
  • a plurality of coils are also arranged in the corresponding trough conveyance direction. Therefore, it is possible to ensure a large amount of articles conveyed by the trough.
  • a larger surface area can be ensured compared to the case of using one large coil, and furthermore, since the plurality of coils are arranged at intervals, the heat dissipation of the coil is improved. Can keep.
  • a combination weighing device is the combination weighing device according to the third aspect, wherein the N pole and the S pole of the plurality of coils of each excitation unit are the troughs corresponding to the excitation unit. The same magnetic poles are arranged in the width direction.
  • the magnetic poles of the coils are arranged so that the same magnetic poles are arranged in the width direction of the trough, it is possible to prevent the magnetic forces from canceling each other between the coils efficiently.
  • the trough amplitude can be increased.
  • the combination weighing device according to the fifth aspect of the present invention is the combination weighing device according to any one of the first to fourth aspects, and the width of each trough is substantially equal to the length of the trough in the transport direction.
  • the article by the feeding means can be used even when the length in the conveying direction of the trough is shortened in order to make the feeding means compact. It is easy to secure the supply amount.
  • the combination weighing device according to the sixth aspect of the present invention is the combination weighing device according to any one of the first to fifth aspects, and each trough has a shape recessed greatly downward.
  • the trough capacity can be sufficiently secured even when the length of the trough in the transport direction is shortened in order to make the supply means compact. It is easy to secure the amount of articles supplied by the means.
  • a combination weighing device is the combination weighing device according to any one of the first to sixth aspects, wherein each trough is arranged at a central portion of a distribution table of a transport destination of articles of the trough. , Drop the article.
  • the trough drops the article on the central portion of the dispersion table, it is easy to uniformly distribute the article by the dispersion table.
  • the combination weighing device according to the eighth aspect of the present invention is the combination weighing device according to any one of the first to seventh aspects, and each trough is arranged horizontally.
  • the trough is horizontal, it is easier to stock articles on the trough and stably supply articles to the dispersion table than when the trough is inclined. .
  • a combination weighing device is the combination weighing device according to any one of the first to eighth aspects, wherein the vibration intensity of the corresponding trough by each excitation unit is a value of the corresponding trough. Control is performed based on the load amount of the article on the distribution table of the article transport destination.
  • the vibration intensity of the trough is controlled based on the load amount of the articles on the dispersion table, so that the dispersion table is kept in a state where an appropriate amount of articles are loaded. Is easy.
  • the trough that conveys the article to the dispersion table is caused to linearly vibrate instead of rotational vibration. Therefore, it is easy to stably convey the article by the trough, and the conveyance amount of the article by the trough It is possible to suppress the shortage.
  • FIG. 2 It is a top view of the combination weighing device concerning one embodiment of the present invention. It is a schematic side view which shows the structure of the combination weighing device of FIG. In FIG. 2, drawing is omitted for the configuration on one side of the distribution table (configuration of the head on the left side of the distribution table in FIG. 2). It is a block diagram of the combination weighing device of FIG. It is a perspective view of the supply trough of the article
  • FIG. 8 is a schematic view of the article supply unit viewed from the downstream side (the dispersion table side for supplying articles) in the article transport direction along the article transport direction of the supply trough. It is a schematic plan view of two coils of the supply trough vibration part of FIG.
  • FIG. 10 is a schematic view of the magnet portion and the coil of the supply trough vibration unit viewed from the side surface direction orthogonal to the conveyance direction of the articles of the supply trough corresponding to the supply trough vibration unit.
  • an N pole is arranged at the upper part of the coil, downstream of the supply trough in the carrying direction of the supply trough corresponding to the supply trough vibration unit, and an S pole is arranged upstream of the carrying direction. The state is drawn.
  • FIG. 1 is a plan view of a combination weighing device 100 according to an embodiment of the present invention.
  • FIG. 2 is a schematic side view showing the configuration of the combination weighing device 100.
  • FIG. 3 is a block diagram of the combination weighing device 100.
  • the combination weighing device 100 two combination weighing mechanisms (a mechanism composed of a dispersion table 30, which will be described later, a head H arranged around the dispersion table 30, etc.) are symmetrical in top view (symmetric in FIG. 1). A device that is arranged and integrated. By combining the two combination weighing mechanisms as in the combination weighing device 100, space can be saved as compared with the case where two independent combination weighing devices are individually installed.
  • the combination weighing device 100 mainly includes two distribution tables 30, a plurality of heads H arranged around each distribution table 30, an article distribution unit 200, an article supply unit 10, and a control unit 90. (See FIGS. 1 to 3)
  • the article distribution unit 200 distributes and supplies articles supplied by a conveyor (not shown) to a pair of supply troughs 11 of the article supply unit 10 described later.
  • the article supply unit 10 supplies the articles supplied from the article distribution unit 200 to the two distribution tables 30.
  • the control unit 90 performs combination calculation and controls the operation of each component of the combination weighing device 100.
  • the distribution table 30 and the plurality of heads H arranged around the distribution table 30 will be outlined.
  • the two distribution tables 30 are the same except that they are configured symmetrically with each other when viewed from above. Therefore, here, the distribution table 30 arranged on the right side in FIG. 1 will be described, and the description of the distribution table 30 arranged on the left side in FIG. 1 will be omitted. Further, the plurality of heads H arranged around the right distribution table 30 in FIG. 1 and the plurality of heads H arranged around the left distribution table 30 in FIG. 1 are configured symmetrically in a top view. It is the same except for the points. Therefore, here, the head H disposed around the right dispersion table 30 in FIG. 1 will be described, and description of the head H disposed around the left dispersion table 30 in FIG. 1 will be omitted.
  • Each head H has one radiation trough 40, one pool hopper 50, one weighing hopper 60, and one booster hopper 70 (see FIG. 2).
  • nine heads H are arranged around the dispersion table 30 (see FIG. 1).
  • the number of the heads H is only an example, and an appropriate number of heads H may be disposed around the distribution table 30 as necessary.
  • the dispersion table 30 rotates to disperse the article supplied to the upper part (on the dispersion table 30) by the article supply unit 10 in the circumferential direction, while the article is radially outward (toward the radiation trough 40). Transport.
  • the article conveyed by the dispersion table 30 falls on the radiation troughs 40 of the plurality of heads H.
  • Each radiating trough 40 conveys articles radially outward (in a direction away from the dispersion table 30).
  • the articles conveyed by the radiation trough 40 are supplied to a pool hopper 50 disposed below the downstream end of the radiation trough 40.
  • the pool hopper 50 temporarily stores the articles supplied from the radiation trough 40 and then supplies the articles to the weighing hopper 60 disposed below the pool hopper 50.
  • the weight of the article supplied from the pool hopper 50 is measured.
  • the articles in the weighing hopper 60 are put into a booster hopper 70 disposed below the weighing hopper 60 after weighing.
  • the control unit 90 performs a combination calculation based on the weight of the article in the weighing hopper 60 and the weight of the article temporarily stored in the booster hopper 70.
  • the control unit 90 selects a combination of hoppers whose combination calculation results are within a predetermined allowable range and closest to the target value, and discharges articles from the hoppers included in the selected combination.
  • the articles discharged from the booster hopper 70 are collected in the collective discharge chute 80 and discharged from the discharge port 81 of the collective discharge chute 80 (see FIG. 2).
  • the articles discharged to the collective discharge chute 80 are supplied to, for example, the bag making and packaging machine 300 installed at the subsequent stage of the combination weighing device 100 (see FIG. 2).
  • the article distribution unit 200 is disposed above the article supply unit 10 (see FIG. 2).
  • the article distribution unit 200 distributes articles supplied by a conveyor (not shown) to a supply trough 11 of the article supply unit 10 described later.
  • the article distribution unit 200 mainly includes a pair of gates 210 and a distribution drive unit 220 that individually drives each gate 210 (see FIG. 2).
  • FIG. 1 depicts a state in which the left gate 210 is closed and the right gate 210 is opened.
  • the article supply unit 10 is an example of a supply unit.
  • the article supply unit 10 is disposed between the two distribution tables 30 in a top view.
  • a supply trough vibration unit 20 of the article supply unit 10 to be described later is disposed between the two distribution tables 30 in a top view.
  • the article supply unit 10 supplies the articles supplied from the article distribution unit 200 to the two distribution tables 30.
  • the article supply unit 10 mainly includes two supply troughs 11 for conveying articles, two supply trough vibration units 20, and a supply unit load cell 14 (see FIGS. 2 and 3).
  • the supply trough 11 and the supply trough vibration unit 20 are examples of a trough and a vibration unit, respectively.
  • the two supply troughs 11 are arranged above the distribution table 30. Each of the two supply troughs 11 conveys the articles distributed from the article distribution unit 200 to one distribution table 30 and supplies the distribution table 30 with the articles. Specifically, referring to FIG. 1, the supply trough 11 on the right side in FIG. 1 conveys the article to the right dispersion table 30 in FIG. 1, and supplies the article to the right distribution table 30 in FIG. The supply trough 11 on the left side in FIG. 1 conveys the article to the left dispersion table 30 in FIG. 1 and supplies the article to the left dispersion table 30 in FIG.
  • Each of the supply trough vibration units 20 is disposed below one supply trough 11. Specifically, referring to FIG. 2, one of the supply trough vibration units 20 is disposed below the right supply trough 11 in FIG. 2, and the other of the supply trough vibration units 20 is the left side in FIG. Is disposed below the supply trough 11.
  • Each of the two supply trough vibration units 20 corresponds to one of the supply troughs 11 and linearly vibrates the corresponding supply trough 11.
  • each supply trough vibration unit 20 corresponds to the supply trough 11 disposed above the supply trough vibration unit 20, and linearly vibrates the corresponding supply trough 11.
  • the articles on the supply trough 11 are conveyed to the distribution table 30 that is the conveyance destination of the articles on the supply trough 11, and fall on the distribution table 30 (to the distribution table 30). Supplied).
  • the supply unit load cell 14 is disposed below each supply trough 11.
  • the supply unit load cell 14 measures the weight of the article on each supply trough 11.
  • FIG. 4 is a perspective view of the supply trough 11.
  • FIG. 5 is a view of the supply trough 11 as viewed from the downstream side in the conveyance direction D1 (see arrow A in FIG. 4) along the conveyance direction D1 (see arrow in FIG. 4) of the article of the supply trough 11. .
  • FIG. 5 is a view of the supply trough 11 as viewed from the distribution table 30 side where the supply trough 11 supplies articles.
  • the supply trough 11 has two side walls 11a extending along the conveyance direction D1 of the articles of the supply trough 11, as shown in FIG. Moreover, the supply trough 11 has the back wall 11b in the upstream of the conveyance direction D1 of the supply trough 11, as shown in FIG. As shown in FIG. 5, the supply trough 11 is formed in a U shape when viewed from the downstream side in the conveyance direction D ⁇ b> 1 of the supply trough 11. More specifically, the supply trough 11 is gradually lowered from the lower end of each side wall 11a toward the central portion between the two side walls 11a when viewed from the downstream side in the transport direction D1 of the supply trough 11. It has an inclined bottom surface 11c.
  • the supply trough 11 is formed in a U shape when viewed from the downstream side in the transport direction D1 by the bottom surface 11c and the two side walls 11a (see FIG. 5).
  • the supply trough 11 is attached to the combination weighing device 100 horizontally. That is, the supply trough 11 is attached to the combination weighing device 100 so that the bottom surface 11 c does not tilt along the conveyance direction D ⁇ b> 1 of the supply trough 11 in a state where the supply trough 11 is not vibrated by the supply trough vibration unit 20.
  • the length of the supply trough 11 in the conveying direction D1 (the distance from the rear wall 11b to the most downstream end portion 11d in the conveying direction D1 of the supply trough 11, see FIG. 4) is shortened.
  • the width W of the supply trough 11 (distance between the side walls 11a, see FIG. 4) is designed to be wide.
  • the width W of the supply trough 11 is designed to be substantially equal to the length L of the supply trough 11 in the transport direction D1. More specifically, the width W of the supply trough 11 is designed so that W ⁇ 0.7L with respect to the length L of the supply trough 11 in the transport direction D1.
  • the supply trough 11 is designed to have a shape that is greatly recessed downward in order to secure the conveyance amount of the supply trough 11 while shortening the length L of the supply trough 11 in the conveyance direction D1.
  • the height T of the supply trough 11 (the distance from the lowest position of the bottom surface 11c to the upper end of the side wall 11a, see FIG. 5) is 1 ⁇ 4 of the length L of the supply trough 11 in the transport direction D1.
  • the above is designed (T ⁇ 0.25L). That is, the supply trough 11 is designed such that the ratio (T / L) of the height T of the supply trough 11 to the length L in the transport direction D1 of the supply trough 11 is 0.25 or more.
  • the supply trough 11 is designed such that the ratio (T / L) of the height T of the supply trough 11 to the length L in the transport direction D1 of the supply trough 11 is 0.3 or more.
  • W 1 / 3L ( ⁇ 0.33L).
  • the one side of the supply trough 11 that conveys the article to one side of the dispersion table 30 and the other side of the supply trough 11 that conveys the article to the other side of the dispersion table 30 are arranged so that their back surfaces are adjacent to each other.
  • the two supply troughs 11 convey the article to the upstream end in the conveyance direction D1 of the supply trough 11 that conveys the article to one side of the dispersion table 30 and the other of the dispersion table 30.
  • the upstream end in the transport direction D1 are disposed adjacent to each other. If it demonstrates using FIG.
  • the two supply troughs 11 include a back wall 11b of the supply trough 11 that conveys articles to one side of the dispersion table 30, and a back wall 11b of the supply trough 11 that conveys articles to the other side of the distribution table 30. It arrange
  • Each supply trough 11 extends from the center of the combination weighing device 100 to the center 30a of the distribution table 30 to which the articles of the supply trough 11 are transported in top view (see FIG. 1).
  • the most downstream end portion 11d in the transport direction D1 of each supply trough 11 is disposed above the center 30a of the distribution table 30 to which the articles of the supply trough 11 are transported (see FIG. 1). ). That is, each supply trough 11 is configured to drop an article on the central portion of the distribution table 30 that is the conveyance destination of the article of the supply trough 11.
  • Each of the supply trough vibration units 20 corresponds to one supply trough 11 (the supply trough 11 disposed above the supply trough vibration unit 20).
  • the supply trough 11 is linearly vibrated.
  • Each supply trough vibration unit 20 mainly includes a plurality of coil springs 21, a base 22, a plurality of leaf springs 23, a connecting member 24, a vibration unit side connection unit 25, two magnet units 26, and two coils 27. (See FIG. 6 and FIG. 8).
  • Each coil spring 21 has a lower end connected to a support portion (not shown) of the combination weighing device 100 and an upper end connected to the lower surface of the base 22. That is, the base 22 is installed on the plurality of coil springs 21.
  • Each leaf spring 23 has a lower end attached to the base 22 and an upper end connected to the connecting member 24. From the upper surface of the connecting member 24, the vibration portion side connection portion 25 extends upward.
  • the vibration part side connection part 25 is a member for connecting the supply trough 11 and the supply trough vibration part 20.
  • FIG. 8 is a schematic view of the article supply unit 10 as viewed from the downstream side of the article transport direction D1 along the transport direction D1 of the supply trough 11, that is, from the distribution table 30 side of the article transport destination of the supply trough 11.
  • FIG. 8 is a schematic view of the article supply unit 10 as viewed from the downstream side of the article transport direction D1 along the transport direction D1 of the supply trough 11, that is, from the distribution table 30 side of the article transport destination of the supply trough 11.
  • the trough side connection part 12 is provided in the lower surface of the supply trough 11 as a structure for the connection with the supply trough vibration part 20 (refer FIG. 5 and FIG. 8).
  • the trough-side connecting portions 12 are arranged side by side in a direction orthogonal to the conveyance direction D1 of the supply trough 11 (hereinafter sometimes referred to as the width direction of the supply trough 11) (see FIGS. 5 and 8).
  • the lower ends of the two trough side connecting portions 12 are connected to the upper surface of the flat connecting member 13.
  • the upper end of the vibration part side connection part 25 is connected to the lower surface of the connection member 13. In this way, the supply trough 11 and the supply trough vibration unit 20 are connected via the connection member 13.
  • the supply trough vibration part 20 is accommodated in the casing 15 as shown in FIG.
  • the supply trough vibration portion 20 is configured such that a vibration portion side connection portion 25 extending upward from the connecting member 24 passes through a hole (not shown) provided on the upper surface of the casing 15 and protrudes outside the casing 15.
  • a vibration portion side connection portion 25 extending upward from the connecting member 24 passes through a hole (not shown) provided on the upper surface of the casing 15 and protrudes outside the casing 15.
  • Two magnet portions 26 are attached to the connecting member 24 of the supply trough vibration unit 20 in the width direction of the supply trough 11 associated with the supply trough vibration unit 20 (see FIG. 8).
  • the two magnet parts 26 have the same configuration.
  • the two magnet portions 26 are attached at an interval in the width direction of the supply trough 11.
  • Each of the two magnet portions 26 is disposed above one of two coils 27 described later at a predetermined distance from the coil 27 (see FIG. 8).
  • Each magnet unit 26 includes two permanent magnets, a first permanent magnet 26a and a second permanent magnet 26b (see FIG. 10).
  • the 1st permanent magnet 26a and the 2nd permanent magnet 26b of the magnet part 26 of the supply trough vibration part 20 are arranged along the conveyance direction D1 of the supply trough 11 matched with the supply trough vibration part 20 ( (See FIG. 10).
  • the first permanent magnet 26a and the second permanent magnet 26b are configured such that the second permanent magnet 26b conveys the article of the supply trough 11 more than the first permanent magnet 26a along the conveyance direction D1 of the supply trough 11. It arranges so that it may be arrange
  • the first permanent magnet 26a is arranged so that the N pole faces downward (coil 27 side).
  • the second permanent magnet 26b is arranged so that the south pole faces downward (coil 27 side).
  • the direction of the magnetic pole is an example, and for example, the first permanent magnet 26a may be arranged so that the south pole faces downward, and the second permanent magnet 26b may be arranged so that the north pole faces downward. .
  • a coil 27 is disposed below each magnet portion 26. That is, on the base 22 of the supply trough oscillating unit 20, the supply trough oscillating unit 20 is arranged in a direction orthogonal to the conveyance direction D1 of the supply trough 11 corresponding to the supply trough oscillating unit 20 (that is, the width direction of the corresponding supply trough 11).
  • Two coils 27 are attached (see FIG. 8). Each of the two coils 27 is arranged on the base 22 at a distance from each other in the width direction of the supply trough 11. That is, the two coils 27 are arranged side by side on the base 22 so that a gap C is formed between them (see FIG. 8).
  • Each of the two coils 27 is disposed below one of the two magnet portions 26 at a predetermined distance from the magnet portion 26 (see FIG. 8).
  • Each coil 27 includes two electromagnets, a first electromagnet 27a and a second electromagnet 27b.
  • Each of the first electromagnet 27a and the second electromagnet 27b includes a magnetic core 28 (see FIG. 7) extending in the vertical direction and a conductive wire (not shown) wound around the magnetic core 28.
  • the first electromagnet 27a and the second electromagnet 27b of each coil 27 of the supply trough vibration unit 20 are arranged in the conveyance direction D1 of the supply trough 11 associated with the supply trough vibration unit 20. More specifically, the first electromagnet 27a and the second electromagnet 27b are arranged such that the second electromagnet 27b is downstream of the first electromagnet 27a in the conveyance direction D1 of the supply trough 11 along the conveyance direction D1 of the article in the supply trough 11. (See FIGS. 9 and 10). The first electromagnet 27a and the second electromagnet 27b are arranged at intervals in the transport direction D1 of the supply trough 11.
  • 1st electromagnet 27a and 2nd electromagnet 27b are comprised so that an alternating current may flow through a conducting wire and a magnetic pole may be excited in the opposite direction mutually.
  • a current is passed through the conducting wire of the first electromagnet 27a, so that the first electromagnet 27a has an S pole disposed on the upper side (magnet portion 26 side).
  • the first electromagnet 27a of the coil 27 of the supply trough vibration unit 20 is arranged such that the S pole is disposed on the supply trough 11 side above the supply trough vibration unit 20.
  • a current also flows through the conducting wire of the second electromagnet 27b, and the second electromagnet 27b is excited so that the N pole is disposed on the upper side (magnet portion 26 side) (FIG. 9).
  • the second electromagnet 27b of the coil 27 of the supply trough vibration unit 20 is arranged such that the N pole is disposed on the supply trough 11 side above the supply trough vibration unit 20.
  • a current flows in the direction opposite to the first timing through the conducting wire of the first electromagnet 27a, so that the first electromagnet 27a is N on the upper side (the magnet portion 26 side). Excited so that poles are placed.
  • the first electromagnet 27a of the coil 27 of the supply trough vibration unit 20 is arranged such that the N pole is disposed on the supply trough 11 side above the supply trough vibration unit 20.
  • a current also flows through the conducting wire of the second electromagnet 27b, and the second electromagnet 27b is excited so that the S pole is disposed on the upper side (magnet portion 26 side).
  • the second electromagnet 27b of the coil 27 of the supply trough vibration unit 20 is arranged such that the S pole is disposed on the supply trough 11 side above the supply trough vibration unit 20.
  • each of the coils 27 of the supply trough oscillating unit 20 is directed toward the supply trough 11 corresponding to the supply trough oscillating unit 20 and is arranged in the transport direction D1 of the supply trough 11 corresponding to the supply trough oscillating unit 20.
  • N pole and S pole (see FIG. 10).
  • the N pole and the S pole of the two coils 27 of the supply trough vibration unit 20 are in the width direction of the supply trough 11 corresponding to the supply trough vibration unit 20.
  • the same magnetic poles are arranged in a line (in a direction orthogonal to the conveyance direction D1 of the supply trough 11) (see FIG. 9).
  • the first permanent magnet 26a and the second permanent magnet 26b By applying an alternating current to the first electromagnet 27a and the second electromagnet 27b of the two coils 27, the first permanent magnet 26a and the second permanent magnet 26b have a downward attracting force and an upward repulsive force. And act alternately. As a result, the connecting member 24 to which the magnet part 26 is attached, the supply trough 11 connected via the excitation part side connection part 25, the connection member 13, and the trough side connection part 12 vibrate, and the supply trough 11 The goods are conveyed.
  • Each dispersion table 30 is a member formed in a substantially circular shape when viewed from above. Articles are supplied from the article supply unit 10 to the dispersion table 30. The dispersion table 30 rotates to disperse articles supplied to the upper part (supplied on the dispersion table 30) in the circumferential direction. The dispersion table 30 is disposed below the supply trough 11 of the article supply unit 10 (see FIG. 2).
  • a dispersion section load cell 33 (see FIG. 3) is attached below each dispersion table 30.
  • the dispersion part load cell 33 measures the weight of the article on the dispersion table 30.
  • Each dispersion table 30 mainly has a conical portion 30b and a horizontal portion 30c (see FIG. 2).
  • the conical portion 30b has a conical inclined surface with a high central portion (the center 30a of the dispersion table 30 is the highest) and a low peripheral portion.
  • the horizontal part 30c has a horizontal plane formed so as to surround the conical part 30b.
  • a distributed table excitation unit 31 is disposed below each distributed table 30 (see FIG. 2).
  • Each distribution table 30 is connected to a distribution table excitation unit 31 (see FIG. 2) at the center of the lower surface.
  • the dispersion table excitation unit 31 causes the dispersion table 30 to generate reciprocating micro vibrations along the circumferential direction. In other words, the distribution table exciting unit 31 rotates the distribution table 30 in the circumferential direction. Due to the vibration generated by the dispersion table exciting unit 31, the article on the dispersion table 30 moves radially outward while turning in one direction.
  • a wall member 32 extending along the outer periphery of the horizontal portion 30c is attached to a portion of the outer periphery of the horizontal portion 30c (a part of the angular region around the center 30a of the dispersion table 30) (see FIG. 2). .
  • the angle region where the wall member 32 is attached to the horizontal portion 30c around the center 30a of the dispersion table 30 coincides with the angle region where the head H (radiation trough 40) around the center 30a of the dispersion table 30 is not provided.
  • the article Since the discharge of the article is regulated by the wall member 32, the article does not fall from the outer peripheral side of the dispersion table 30 in the angle region where the wall member 32 around the center 30 a of the dispersion table 30 is arranged, Is carried to an angle region where the wall member 32 is absent.
  • the distribution table 30 on the right side in FIG. 1 will be described as an example.
  • the article moves radially while circulating counterclockwise on the distribution table 30, and is supplied to the radiation troughs 40 of the heads H1 to H9.
  • the discharge of the article is regulated by the wall member 32, so that the article is not discharged from the dispersion table 30. Therefore, among the articles conveyed from the upstream on the dispersion table 30 toward the head H9, surplus articles that have not been supplied to the radiation trough 40 of the head H9 are provided with the wall member 32 of the horizontal portion 30c. It passes through the area and is conveyed toward the head H1. That is, the angular region in which the wall member 32 around the center 30a of the dispersion table 30 is arranged in the horizontal portion 30c functions as a circulation path for articles from the head H9 to the head H1.
  • a dispersion table having a horizontal portion 30c so as to surround the conical portion 30b is adopted as the dispersion table 30, but the present invention is not limited to this.
  • the dispersion table 30 may be a dispersion table that does not have the horizontal portion 30c (that is, the entire cone shape).
  • Each radiation trough 40 receives articles supplied from the dispersion table 30.
  • Each radiating trough 40 is vibrated by a radiating trough excitation unit 41 (see FIG. 3), so that the received article (the article on the radiating trough 40) is moved away from the dispersion table 30 (the center 30a of the dispersion table 30). To the outside in the radial direction).
  • the article conveyed by each radiation trough 40 falls to the pool hopper 50 arranged downstream in the conveyance direction D1 of the radiation trough 40. That is, the radiation trough 40 supplies articles to the pool hopper 50 belonging to the same head H.
  • Each pool hopper 50 is disposed below the downstream end of the radial trough 40 belonging to the same head H in the transport direction D1. Each pool hopper 50 temporarily accommodates articles supplied from the radiation trough 40 belonging to the same head H.
  • Each pool hopper 50 has a discharge port at its lower part.
  • a gate 51 is provided at the outlet of each pool hopper 50.
  • the gate 51 is driven by a stepping motor 52 to perform an opening / closing operation.
  • the gate 51 is closed, the pool hopper 50 holds the articles supplied from the radiation trough 40.
  • the gate 51 is opened, the articles in the pool hopper 50 fall from the discharge port and are supplied to the weighing hopper 60 belonging to the same head H as the pool hopper 50.
  • Each weighing hopper 60 is disposed below the pool hopper 50 belonging to the same head H.
  • a load cell 63 is attached to each weighing hopper 60. The load cell 63 measures the weight of the article in the weighing hopper 60.
  • Each weighing hopper 60 has a discharge port at its lower part.
  • a gate 61 is provided at the discharge port of each weighing hopper 60.
  • the gate 61 is driven by a stepping motor 62 to perform an opening / closing operation. In a state where the gate 61 is closed, the weighing hopper 60 holds articles supplied from the pool hopper 50. When the gate 61 is opened, articles in the weighing hopper 60 fall from the discharge port and are supplied to the booster hopper 70 belonging to the same head H as the weighing hopper 60.
  • Each booster hopper 70 is disposed below the weighing hopper 60 belonging to the same head H.
  • Each booster hopper 70 has a discharge port at its lower part.
  • a gate 71 is provided at the discharge port of each booster hopper 70.
  • the gate 71 is driven by a stepping motor 72 to perform an opening / closing operation.
  • the gate 71 is closed, the booster hopper 70 holds the article supplied from the weighing hopper 60.
  • the gate 71 is opened, the articles in the booster hopper 70 fall from the discharge port to the collective discharge chute 80.
  • the collective discharge chute 80 is disposed below the booster hopper 70.
  • the collective discharge chute 80 collects the articles dropped by the booster hopper 70 and discharges the articles from the discharge port 81 toward the bag making and packaging machine 300 disposed below.
  • the control unit 90 is configured by each component of the combination weighing device 100, for example, the distribution driving unit 220, the supply trough vibration unit 20, the supply unit load cell 14, the distribution table vibration unit 31, the distribution unit load cell. 33, the radiation trough excitation unit 41, the stepping motor 52, the load cell 63, the stepping motor 62, the stepping motor 72, and the touch panel 95 are electrically connected.
  • the touch panel 95 is a liquid crystal display (LCD) having both input and output functions, and functions as an input unit and an output unit.
  • the touch panel 95 receives input such as various settings related to combination weighing.
  • the touch panel 95 receives an input such as a target value for combination weighing.
  • the touch panel 95 displays various information related to the operation status of the combination weighing device 100.
  • the control unit 90 mainly includes a CPU 91 and a memory 92 such as a ROM or a RAM (see FIG. 3).
  • the CPU 91 controls each unit of the combination weighing device 100 by executing a program stored in the memory 92.
  • control unit 90 performs the following control, for example.
  • the control unit 90 controls the article by the distribution driving unit 220.
  • the distribution and the vibration intensity of the supply trough 11 by the supply trough vibration unit 20 are controlled.
  • the control unit 90 receives the vibration intensity of the distribution table 30 by the distribution table excitation unit 31 based on various settings input from the touch panel 95 or stored in advance in the memory 92 and the measured value of the load cell 63.
  • the driving / stopping of the vibration of each radiation trough 40 by the radiation trough excitation unit 41, the vibration intensity, and the like are controlled. Control of the vibration intensity of the supply trough 11 based on the measured value of the dispersion unit load cell 33 by the control unit 90 will be described later.
  • control unit 90 transmits a command to the stepping motor 52 in order to open and close the gate 51 of the pool hopper 50 as necessary.
  • the control unit 90 transmits a command to the stepping motor 62 to open and close the gate 61 of the weighing hopper 60 as necessary.
  • the control unit 90 transmits a command to the stepping motor 72 in order to open and close the gate 71 of the booster hopper 70 as necessary.
  • control unit 90 performs combination calculation based on the weight of the article in the weighing hopper 60 and the weight of the article temporarily stored in the booster hopper 70 using the measurement value of the load cell 63. Then, the control unit 90 selects a combination of hoppers whose combination calculation result is within a predetermined allowable range and is closest to the target value, and discharges articles from the hoppers included in the selected combination.
  • the article dropped on the dispersion table 30 is conveyed toward the outer peripheral edge of the dispersion table 30 while being distributed in the circumferential direction by the rotating dispersion table 30, and is supplied to the inner ends of the radiation troughs 40 of the heads H1 to H9. Is done.
  • the radiation trough 40 conveys the articles supplied from the dispersion table 30 from the inside to the outside by vibration.
  • the articles discharged from the outer end of the radiation trough 40 are supplied to the pool hopper 50 and temporarily stored there.
  • the articles discharged from the pool hopper 50 are supplied to the weighing hopper 60.
  • the articles supplied to the weighing hopper 60 are temporarily stored in the weighing hopper 60 and are weighed by the load cell 63.
  • the articles discharged from the weighing hopper 60 are supplied to the booster hopper 70.
  • the control unit 90 receives the weighing value of the article from the load cell 63 and performs a combination calculation based on the weight of the article in the weighing hopper 60 and the weight of the article temporarily stored in the booster hopper 70. Then, the control unit 90 selects a combination of hoppers whose combination calculation result is within a predetermined allowable range and is closest to the target value, and discharges articles from the hoppers included in the selected combination.
  • the articles discharged from the booster hopper 70 are collected in the collective discharge chute 80 and discharged from the discharge port 81 of the collective discharge chute 80 toward the bag making and packaging machine 300.
  • the vibration intensity of the supply trough 11, in other words, the vibration intensity of the supply trough 11, is applied to the conducting wires of the first electromagnet 27a and the second electromagnet 27b of the coil 27 of the supply trough vibration unit 20 corresponding to the supply trough 11.
  • the magnitude of the applied voltage and / or the current flowing through the conductor is determined by the weight value of the distribution unit load cell 33 provided on the distribution table 30 of the supply destination of the articles of the supply trough 11 (the loading of the articles on the distribution table 30). Amount).
  • control unit 90 not only controls On / Off of the vibration of the supply trough 11, but also determines the vibration intensity of the supply trough 11, and the first electromagnet 27a of the coil 27 of the supply trough vibration unit 20.
  • distribution table 30 is accurately controlled by controlling the voltage applied to the conducting wire of the 2nd electromagnet 27b, and / or the electric current which flows into a conducting wire.
  • the control unit 90 determines the vibration intensity of the supply trough 11 when the weight of the article measured by the dispersion unit load cell 33 is smaller than the predetermined target value of the weight of the article on the dispersion table 30.
  • the supply trough vibration unit 20 (the value of the current flowing through the conducting wire and the value of the applied voltage) is controlled so as to increase. Further, the control unit 90 reduces the vibration intensity of the supply trough 11 when the weight of the article weighed by the dispersion unit load cell 33 is larger than the predetermined target value of the weight of the article on the dispersion table 30.
  • the supply trough vibration unit 20 is controlled.
  • the value of the electric current which flows through a conducting wire, and the applied voltage is determined according to the magnitude
  • the amount of articles on the supply troughs 11 is determined by controlling the distribution drive unit 220 by the control unit 90 according to the measurement value of the supply unit load cell 14 provided in each supply trough 11, and / or.
  • the control unit 90 makes an adjustment by requesting an increase or decrease in the conveyance amount of the article to the distribution drive unit 220 with respect to a conveyor (not shown) on the upstream side.
  • the combination weighing device 100 includes two distribution tables 30 and an article supply unit 10 as an example of a supply unit.
  • the dispersion table 30 rotates to disperse articles supplied to the upper part in the circumferential direction.
  • the article supply unit 10 is disposed between the two distribution tables 30 in a top view and supplies articles to the two distribution tables 30.
  • the article supply unit 10 includes two supply troughs 11 for conveying articles and two supply trough vibration units 20. Each of the two supply trough vibration units 20 corresponds to one of the supply troughs 11 and linearly vibrates the corresponding supply trough 11.
  • One of the supply troughs 11 that convey the articles to one side of the dispersion table 30 and the other of the supply troughs 11 that convey the articles to the other side of the dispersion table 30 are so that their back surfaces (back wall 11b) are adjacent to each other. Placed in.
  • the supply trough 11 is linearly oscillated instead of rotating, it is easy to stably convey the article by the supply trough 11, and the article is conveyed by the supply trough 11. It is possible to suppress the shortage.
  • each of the supply trough vibration units 20 is arranged at intervals in the width direction of the corresponding supply trough 11 that is orthogonal to the conveyance direction D1 of the corresponding supply trough 11.
  • the plurality of coils 27 are provided.
  • the coil of the electromagnetic feeder that generates vibration in the supply trough 11 is enlarged, and the amplitude of the supply trough 11 is increased. A possible response is to increase it.
  • the coil is enlarged, another problem that the heat dissipation of the coil is deteriorated occurs.
  • each supply trough vibration unit 20 includes a plurality of coils 27 in the width direction of the corresponding supply trough 11 so that the amount of articles conveyed by the supply trough 11 is increased. It is possible to secure a large amount. Further, here, by having a plurality of coils 27, it is possible to ensure a larger surface area than when one large coil is used, and furthermore, the plurality of coils 27 are mutually connected so as to ensure a gap C through which air passes. Since they are arranged at intervals, the heat dissipation of the coil 27 can be maintained better than when one large coil is provided.
  • each of the coils 27 of each supply trough vibration unit 20 is directed to the supply trough 11 side corresponding to the supply trough vibration unit 20, and the supply trough vibration unit 20.
  • the supply trough 11 corresponding to is arranged in the transport direction D1 of N and S poles.
  • each coil 27 of the supply trough vibration unit 20 has an N pole and an S pole arranged in the transport direction D1 of the supply trough 11.
  • a plurality of coils (first electromagnet 27a and second electromagnet 27b) are also arranged in the conveying direction D1 of the corresponding supply trough 11. Therefore, it is possible to secure a large amount of articles conveyed by the supply trough 11.
  • the first electromagnet 27a and the second electromagnet 27b it is possible to secure a large surface area compared to the case where one large coil is used, and the plurality of coils (the first electromagnet 27a and the second electromagnet 27a). Since the second electromagnets 27b) are arranged at intervals, the heat dissipation of the coils (the first electromagnet 27a and the second electromagnet 27b) can be kept good.
  • the N pole and the S pole of the plurality of coils 27 of each supply trough vibration unit 20 are the same in the width direction of the supply trough 11 corresponding to the supply trough vibration unit 20. It arrange
  • the magnetic poles of the coil 27 are arranged so that the same magnetic poles are arranged in the width direction of the supply trough 11, it is possible to prevent the magnetic forces from canceling each other between the coils 27.
  • the amplitude of the supply trough 11 can be increased efficiently.
  • the width W of each supply trough 11 is substantially equal to the length L of the supply trough 11 in the transport direction D1. Specifically, the ratio (W / L) of the width W of the supply trough 11 to the length L in the transport direction D1 of the supply trough 11 is 0.7 or more, more preferably 0.8 or more.
  • the supply trough 11 is formed wide, even when the length of the supply trough 11 in the transport direction D1 is shortened in order to make the article supply unit 10 compact. It is easy to secure the supply amount of articles by the article supply unit 10.
  • each supply trough 11 has a shape that is greatly recessed downward. Specifically, the ratio (T / L) of the height T of the supply trough 11 to the length L in the transport direction D1 of the supply trough 11 is 0.25 or more, more preferably 0.3 or more.
  • each supply trough 11 drops the article on the central portion of the distribution table 30 that is the conveyance destination of the article of the supply trough 11.
  • the supply troughs 11 are arranged horizontally.
  • the supply trough 11 is horizontal, the articles are stocked on the supply trough 11 and the articles are stably supplied to the dispersion table 30 as compared with the case where the supply trough 11 is inclined. Is easy.
  • the vibration intensity of the corresponding supply trough 11 by each supply trough vibration unit 20 is the load amount of the article on the distribution table 30 at the conveyance destination of the article of the corresponding supply trough 11. Controlled based on
  • the vibration intensity of the supply trough 11 is controlled based on the load amount of the article on the distribution table 30 at the conveyance destination of the article in the supply trough 11, the distribution table 30 is appropriately set. It is easy to keep a quantity of articles loaded.
  • the article supply unit 10 is supplied with the article from the article distribution unit 200, but is not limited to this.
  • the article distribution unit 200 two article conveyance conveyors that are driven independently may be provided.
  • each supply trough 11 of the article supply unit 10 may be configured such that an article is supplied from one of the article transport conveyors corresponding to the supply trough 11.
  • each supply trough vibration part 20 has the two coils 27, it is not limited to this.
  • Each supply trough vibration unit 20 may be configured to have three or more coils 27 arranged at intervals in the width direction of the corresponding supply trough 11. In this case, the number of the magnet parts 26 of each supply trough vibration part 20 should just be determined according to the number of the coils 27. FIG.
  • each coil 27 of each supply trough vibration unit 20 has two electromagnets 27a and 27b arranged in the transport direction D1 of the supply trough 11 corresponding to the supply trough vibration unit 20, It is not limited.
  • Each coil 27 of each supply trough vibration unit 20 may be configured to have three or more electromagnets arranged in the transport direction D1 of the corresponding supply trough 11. Also in this case, the N poles and S poles of the plurality of coils 27 of each supply trough vibration unit 20 are arranged so that the same magnetic poles are arranged in the width direction of the supply trough 11 corresponding to the supply trough vibration unit 20. It is preferred that

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Jigging Conveyors (AREA)
  • Feeding Of Articles To Conveyors (AREA)

Abstract

L'invention concerne un appareil de pesage par combinaison comportant deux goulottes transférant chacune des articles vers l'une ou l'autre de deux tables de dispersion, et qui présente peu de risque que la quantité d'articles transférés par les goulottes vienne à manquer. L'appareil (100) de pesage par combinaison comprend : deux tables de dispersion (30); et une partie d'apport (10) d'articles. Les tables de dispersion tournent de manière à disperser de manière circonférentielle les articles fournis vers une partie supérieure de celles-ci. La partie d'apport d'articles est placée entre les deux tables de dispersion, en vue en plan, et fournit des articles aux deux tables de dispersion. La partie d'apport d'articles comprend : deux goulottes d'alimentation (11) qui transfèrent des articles; et deux parties de vibration (20) de goulotte d'alimentation. Chaque partie de vibration de goulotte d'alimentation correspond à l'une ou l'autre des goulottes d'alimentation, et fait vibrer linéairement la goulotte d'alimentation correspondante. Une goulotte d'alimentation qui transfère des articles vers une table de distribution, et l'autre goulotte d'alimentation qui transfère des articles vers l'autre table de distribution, sont agencées de sorte que leurs surfaces arrière (parois de surface arrière 11b) sont adjacentes entre elles.
PCT/JP2016/056862 2015-03-10 2016-03-04 Appareil de pesage par combinaison WO2016143709A1 (fr)

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JP2015-047719 2015-03-10
JP2015047719A JP6454185B2 (ja) 2015-03-10 2015-03-10 組合せ計量装置

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Cited By (1)

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JPS63282615A (ja) * 1987-05-14 1988-11-18 Yamato Scale Co Ltd 組合わせ秤用等の電磁振動フィーダ
JP2004244134A (ja) * 2003-02-12 2004-09-02 Ishida Co Ltd 電磁振動式フィーダおよび組合せ計量装置
JP2007326668A (ja) * 2006-06-07 2007-12-20 Takazono Sangyo Co Ltd 振動フィーダ
JP2010122041A (ja) * 2008-11-19 2010-06-03 Ishida Co Ltd 組合せ計量装置
JP2011047816A (ja) * 2009-08-27 2011-03-10 Ishida Co Ltd 組合せ計量装置
JP2012021816A (ja) * 2010-07-12 2012-02-02 Yamato Scale Co Ltd 組合せ秤及びそれを用いた計量包装システム
JP2014105994A (ja) * 2012-11-22 2014-06-09 Ishida Co Ltd 組合せ計量装置

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Publication number Priority date Publication date Assignee Title
JPS5931029U (ja) * 1982-08-20 1984-02-27 大和製衡株式会社 物品供給装置
JPS63282615A (ja) * 1987-05-14 1988-11-18 Yamato Scale Co Ltd 組合わせ秤用等の電磁振動フィーダ
JP2004244134A (ja) * 2003-02-12 2004-09-02 Ishida Co Ltd 電磁振動式フィーダおよび組合せ計量装置
JP2007326668A (ja) * 2006-06-07 2007-12-20 Takazono Sangyo Co Ltd 振動フィーダ
JP2010122041A (ja) * 2008-11-19 2010-06-03 Ishida Co Ltd 組合せ計量装置
JP2011047816A (ja) * 2009-08-27 2011-03-10 Ishida Co Ltd 組合せ計量装置
JP2012021816A (ja) * 2010-07-12 2012-02-02 Yamato Scale Co Ltd 組合せ秤及びそれを用いた計量包装システム
JP2014105994A (ja) * 2012-11-22 2014-06-09 Ishida Co Ltd 組合せ計量装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108871528A (zh) * 2018-07-25 2018-11-23 中山市康必威自动化机械有限公司 一种组合秤的低黏附性不粘结构

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