JP6647491B2 - Combination weighing device - Google Patents

Description

  The present disclosure relates to a combination weighing device that can discharge a single object having a variation in mass in combination with a constant mass.

  2. Description of the Related Art Conventionally, there are various types of combination weighing devices that match the properties and characteristics of an object to be weighed.

  Patent Literature 1 discloses a combination weighing device for measuring sticky or sticky roses such as cut vegetables and pickles. In this combination weighing device, articles are stored in a cup (container) and moved from the weighing conveyor to the staying conveyor.

JP-A-9-68457

  The device described in Patent Literature 1 weighs and conveys an article stored in a cup. Therefore, it is convenient when the cup is handled as a single object, but when the object is a single object such as a frozen fish or a broiler, there is a problem that the cup becomes a hindrance. Therefore, it is conceivable to use this apparatus to flow a simple substance as it is instead of a cup and measure the combination. However, in this apparatus, a plurality of single objects (cups) are conveyed by a weighing conveyor or a staying conveyor arranged in a plane. Therefore, there is a problem that the entire apparatus becomes large. In addition, when a part of the single objects (cups) arranged on the stagnant conveyor is removed by combination selection, the part where the tooth was missing is packed with the subsequent single object, and the new single object is placed at the end of it. Is packed. As a result, there is a problem that such processing becomes complicated. In particular, in order to pack a subsequent single object at a place where teeth are missing on the stagnant conveyor, the subsequent single objects must be packed by traveling the stagnant conveyor while the preceding single object group is stopped on the stagnant conveyor. No. As a result, there is a problem that the apparatus becomes complicated and expensive.

  The present disclosure provides an inexpensive and compact combination weighing device that can combine and weigh even a simple substance such as a frozen fish.

  An input section for inputting articles according to the present disclosure onto a conveyor, a plurality of combination trays arranged along the conveying direction of the conveyor, and articles placed in sections on the conveyor, correspond to the sections. The feed unit that transfers to the combination tray group to be transferred, the input unit, the conveyor, and the supply unit are each driven and controlled, and the weighing values corresponding to each article in the combination tray group are combined to determine the optimal combination, and the optimum combination is determined. A control unit for discharging the articles from the combination tray, wherein the control unit controls the timing of inputting the articles from the input unit to the transport conveyor, so that the N-th section among the sections where the articles are placed on the transport conveyor is provided. In the section corresponding to the combination tray from which the articles have been ejected during combination weighing, the articles are thrown in from the input section, and the N-th set during the (N + 1) th combination weighing To supply the article to a combination tray draining article during metering thereby.

  The combination weighing device according to the present disclosure provides an inexpensive and compact combination weighing device that can combine and weigh even a simple substance such as a frozen fish.

The front view of the combination weighing device concerning this embodiment. The top view of FIG. The side view of FIG. FIG. 2 is a partially enlarged side view of FIG. 1. FIG. 3 is a configuration block diagram of a control system of the combination weighing device. FIG. 4 is a diagram for explaining a discharge timing of a charging unit 5 according to the embodiment. FIG. 4 is a diagram for explaining a discharge timing of a charging unit 5 according to the embodiment.

  Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, an unnecessary detailed description may be omitted. For example, a detailed description of a well-known item or a redundant description of substantially the same configuration may be omitted. This is to prevent the following description from being unnecessarily redundant and to facilitate understanding by those skilled in the art.

  The inventors provide the accompanying drawings and the following description so that those skilled in the art can fully understand the present disclosure, and they are intended to limit the subject matter described in the claims. is not.

(Embodiment)
Hereinafter, Embodiment 1 will be described with reference to FIGS.

  In this embodiment, the vacuum-packed frozen fish is used as an object to be weighed. However, the object to be weighed is not limited to this. For example, broilers of various sizes and agricultural products such as corn are used. May be. Further, the following embodiments do not limit the technical scope of the present invention.

  FIG. 1 is a front view of a combination weighing device according to one embodiment of the present invention.

  FIG. 2 is a plan view of FIG.

  FIG. 3 is a side view of FIG.

  FIG. 4 is a partially enlarged side view of FIG.

  The combination weighing device 1 described in FIGS. 1 to 4 is conveyed from the weighing unit 2 in the preceding stage, the first conveyor 3 arranged below the weighing unit 2, the second conveyor 4 following the weighing unit 2, and the second conveyor 4. Loading section 5 for temporarily storing the articles P, transport conveyors 6 for transporting the articles P discharged from the loading section 5, and a combination tray group 7a of the first group arranged side by side on both sides of the transport conveyor 6 A combination tray group 7b of the second group, a supply unit 8 for simultaneously transferring the articles P on the conveyor 6 to the combination tray group 7a and the combination tray group 7b on both sides, and the combination tray group 7a on both sides. A collection conveyor 9 for collecting a predetermined mass of articles discharged from the combination tray group 7b, and a control unit 10 described below are provided.

  The weighing unit 2 includes two article input ports 20. Below each article input port 20, an upper pool hopper 21 and a lower weighing hopper 22 are respectively arranged symmetrically with respect to a vertical plane which bisects each article input port 20.

  Each of the pool hopper 21 and the weighing hopper 22 is supported by a load sensor such as a load cell. When the article P is loaded into the pool hopper 21, the load sensor of the pool hopper 21 outputs a loading signal of the article P. Further, the load sensor of the weighing hopper 22 outputs a weighing signal corresponding to the mass of the article P input from the pool hopper 21.

  The first conveyor 3 and the second conveyor 4 are constituted by crossed belt conveyors. As shown in FIG. 1, articles P are put into each of the sections 30 and 40 defined by the bars of these conveyors. Therefore, the articles P are discharged from the weighing hopper 22 that has finished weighing at the timing when each section 30 of the first conveyor 3 reaches below each weighing hopper 22. At this time, if both of the weighing hoppers 22 have finished weighing, the article P is discharged from one of the preset weighing hoppers 22. Further, the weighed value of the discharged article P is linked to the section into which the article P has been input, and as the section moves, it is determined which position (section) the article P has reached on a memory (not shown). Be managed.

  The first conveyor 3 and the second conveyor 4 are each configured as a start-up conveyor. The articles P stored in the sections 30 of the first conveyor 3 are transferred to the sections 40 of the second conveyor 4, respectively, and are transported to the reversing section at the upper end. Then, on condition that there is no article P in the subsequent input section 5, the article P is input from the reversing section toward the input section 5.

  The loading section 5 is constituted by a hopper provided with a first opening / closing gate 51 and a second opening / closing gate 52 which open and close individually. The first opening / closing gate 51 discharges the articles P in the input section 5 to the transport conveyor 6 side. On the other hand, the second opening / closing gate 52 discharges an unsuitable excessive amount of articles P to the collection hopper 53. In addition, the excess article P that is not suitable corresponds to, for example, an article that greatly exceeds the planned mass. Thereby, the unsuitable articles P are eliminated from the combination line early. The collection hopper 53 swings around the horizontal axis 54 to discharge the incompatible articles P stored in the collection hopper 53 to a lower discharge conveyor 55. The weighed value of the articles P collected by the collection hopper 53 is excluded from the combination targets.

  The conveyor 6 is configured by arranging gutter-like trays 60 in a roller chain 61 at a constant pitch along the conveying direction. The tray 60 circulates in the direction of arrow A by the chain 61.

  As shown in FIG. 4, the tray 60 is formed by attaching L-shaped members 62 in a side view and symmetrically arranged with a predetermined gap to each connecting body 63 of the roller chain 61. As a result, in the horizontal conveyance region of the roller chain 61, the pair of plane-symmetric L-shaped members 62 approach each other to form a gutter-shaped tray 60. Further, in the reversal region by the sprocket, as shown in FIG. 4, the pair of L-shaped members 62 are reversed while opening. The predetermined gap is provided between the pair of L-shaped members 62 in order to prevent the vacuum-packed articles P from being caught between the tray 60 and a discharge pusher 82 described later. It is.

  The transport conveyor 6 circulates at a constant speed, and the loading unit 5 moves the transport conveyor 6 to a combination having no articles P in one of the combination tray groups 7a (7b) as shown in FIG. The articles P are put into each tray 60 in an array corresponding to the tray 7. Therefore, when arranging the articles P to be supplied to the combination tray group 7a on the conveyance conveyor 6, the trays 60 (on the conveyance conveyor 6 corresponding to the combination tray 7 (4) in which the articles P in the combination tray group 7a are stored). When 4) arrives, control is performed so that the article P is not discharged there.

  However, when there is no article P in the input section 5, the transport conveyor 6 is temporarily stopped, and when the article P is supplied into the input section 5, the transport conveyor 6 is controlled to start moving again. The weighed value of the articles P put into each tray 60 in this way is linked to each tray 60 and managed on the memory.

  The combination tray groups 7a and 7b are composed of a total of nine combination trays 7 (1) to 7 (9) arranged side by side along the transport direction of the transport conveyor 6. As shown in FIG. 3, each combination tray 7 is formed in a dust removal type so as to receive the articles P from a direction perpendicular to the conveying direction of the conveying conveyor 6 and discharge the articles P from the received tip. I have. Each tray 7 is supported by a support frame 70 fixed to its bottom surface, and the tray 7 swings around a horizontal axis 71 provided at its lower end. In addition, an air cylinder 73 is attached to the bottom surface on the distal end side of each tray 7 via a bracket 72. When the piston rod 74 of the air cylinder 73 extends, the tray 7 is held in a substantially horizontal posture. When the piston rod 74 is retracted into the cylinder, the tray 7 is inclined downward as shown by a two-dot chain line.

  The supply unit 8 includes three drive units 80, a holding bar 81 that straddles the three trays 60, and one end fixed to the holding bar 81, and the other portion is fitted to the inner surface of the tray 60 via a slight gap. And a corresponding discharge pusher 82.

  The drive unit 80 includes a reciprocating mechanism (not shown) that reciprocates the holding bar 81 in a direction orthogonal to the transport direction of the transport conveyor 6. In this reciprocating mechanism, for example, a timing belt is stretched between a pair of sprockets arranged in a direction perpendicular to the transport direction of the transport conveyor 6, and a stay 83 for supporting the holding bar 81 is attached to the timing belt. The holding bar 81 is configured to be moved in a direction orthogonal to the conveyor 6 by running the timing belt. The upper end of the stay 83 is held by a guide rod (not shown) so as to be able to move horizontally, and when the timing belt runs, the stay 83 extending in the vertical direction moves horizontally while maintaining its posture. . Therefore, the discharge pusher 82 extending in the vertical direction moves horizontally while maintaining its posture. The reciprocating mechanism is not limited to such a configuration. For example, the stay 83 attached to the holding bar 81 by a ball screw mechanism may be moved horizontally.

  Each drive unit 80 moves all the holding bars 81 simultaneously in the same direction under the control of the control unit 10 described later. For example, in FIG. 2, when each holding bar 81 is at the standby position 84b on the side of one of the combination trays 7b, the combination trays 7a (1) to 7a (3) with no articles in the other combination tray 7a, When the articles P are arranged on the transport conveyor 6 in an arrangement corresponding to 7a (5) to 7a (7) and 7a (9), each holding bar 81 moves together toward the other standby position 84a. . As a result, the combination trays 7a (1) to 7a (3), 7a (5) to 7a (7), and 7a (9) having no articles in the other combination tray 7a group are linked with the weighing values. New article P is supplied. Meanwhile, the conveyor 6 has an array corresponding to the combination trays 7b (1) to 7b (5) and 7b (7) to 7b (9) having no articles in the group of the combination trays 7b. Accordingly, the articles P are arranged. Then, when the articles P are arranged on the transport conveyor 6, the holding bars 81 move all together toward the original standby position 84b.

  Thus, the holding bar 81 of the supply unit 8 moves from one combination tray group 7b to the other combination tray group 7a, and next time moves from the other combination tray group 7a to the one combination tray group 7b. Is controlled as follows.

  When all the articles are present in the combination tray groups 7a and 7b, the combination weighing apparatus 1 calculates a target combination from the 18 articles and selects an optimum combination result from the combinations.

  The collection conveyor 9 is constituted by a belt conveyor, and is disposed below the conveyor 6. The collection conveyor 9 is configured to collect the articles P in a direction B opposite to the conveyance direction A of the conveyor 6. The leading end of the collection conveyor 9 faces a discharge conveyor 55 arranged at a lower stage in a direction orthogonal to the collection conveyor 9 and conveys the articles combined and weighed to a predetermined mass to a packaging machine (not shown) or the like. .

  FIG. 5 is a configuration block diagram of a control system of the combination weighing device.

  In FIG. 5, the control unit 10 is configured by a computer, and in the internal memory 11, the measured value of the article P measured by the measuring unit 2 and discharged to the first conveyor 3 corresponds to the discharged section 30. Is remembered. Further, a calculation unit 12 for obtaining an optimum combination by combining the weighing values of the articles P supplied to the combination tray groups 7a and 7b and transmitting a discharge command to the combination tray 7 relating to the obtained optimum combination is housed. I have. The calculation unit 12 is a function realized by reading and executing a program.

  The control unit 10 is electrically connected to the measuring unit 2, the first conveyor 3, the second conveyor 4, the charging unit 5, the transport conveyor 6, the combination tray groups 7a and 7b, the supply unit 8, and the recovery conveyor 9. Then, they are configured to drive and control them.

  Hereinafter, control of the discharge timing of the input unit 5 by the control unit 10 will be described with reference to the drawings.

  6 and 7 are diagrams for explaining the discharge timing of the charging unit 5 in the present embodiment.

  FIG. 6 is a diagram showing an operation from the initial state until the articles P discharged from the input unit 5 are supplied to the combination tray groups 7a and 7b and the articles are discharged by the first combination weighing.

  On the other hand, FIG. 7 shows that after the N-th combination weighing is completed, the articles P discharged from the charging section 5 are supplied to the combination tray groups 7a and 7b, and the articles are discharged by the (N + 1) th combination weighing. FIG. 4 is a diagram showing an operation up to the start of the operation.

  6 and 7, the squares “0” to “12” indicate the transport state of the Nikon conveyor 4. Furthermore, the square of “13” indicates the article presence / absence state of the input unit 5. Further, squares “1” to “9” described on the right side of “13” indicate the presence / absence state of an article in the combination tray 7a or the combination tray 7b. The cells between "1" and "9" indicate the state of transport of the articles on the transport conveyor 6.

  In both FIGS. 6 and 7, hatched cells indicate a state in which articles are placed. The white squares indicate a state where no articles are placed.

  Hereinafter, the operation from the state in which no articles are supplied to the combination tray 7a and the combination tray 7b to the time when all the articles are supplied and the first combination weighing is performed will be described with reference to FIG.

  (Step 1-1) First, as shown in FIG. 6A, no articles are supplied to the combination tray 7a and the combination tray 7b. Therefore, the control unit 10 controls the entire combination weighing device 1 to convey articles in a state of being packed in the conveyer 6. That is, the control unit 10 continuously supplies articles to the tray 60 to be transported. In short, the control unit 10 controls the supply of the articles from the combination tray 7a (1) to all the trays 60 corresponding to each of the combination trays 7a (9).

  (Step 1-2) Next, as shown in FIG. 6 (2), after the articles are transported by the transport conveyor 6 in step 1-1, the positions corresponding to the combination trays 7a (1) to 7a (9). When the article arrives at the control unit 10, the control unit 10 stops the transport operation of the transport conveyor 6.

  (Step 1-3) As shown in FIG. 6C, the control unit 10 controls the supply unit 8 to move the articles placed on the tray 60 from the combination tray 7a (1) to the combination tray 7a (1). 7a (9).

  (Step 1-4) As shown in FIG. 6 (4), after the articles are conveyed by the conveyor 6 in a packed state, the articles are moved from the combination tray 7a (1) to the position corresponding to the combination tray 7a (9). If it has arrived, the control unit 10 stops the transport operation of the transport conveyor 6.

  (Step 1-5) As shown in FIG. 6 (5), the control unit 10 controls the supply unit 8 to move the articles placed on the tray 60 from the combination tray 7b (1) to the combination tray 7b (1). 7b (9).

  (Step 1-6) By the operations up to step 1-5, the articles are supplied to each of the combination tray 7a and the combination tray 7b. In this state, the control unit 10 causes the collection conveyor 9 to discharge a combination result selected by a combination calculation in advance among the articles supplied to the combination tray 7a and the combination tray 7b.

  By the above operation, the control unit 10 can supply the articles to the combination tray 7a and the combination tray 7b, and can complete the first combination weighing.

  Next, with reference to FIG. 7, an operation from the time when an article is discharged from the combination tray 7a and the combination tray 7b by the Nth combination calculation to the time when the article is discharged by the (N + 1) th combination calculation will be described. .

  (Step 2-1) As shown in FIG. 7A, as a result of the Nth combination weighing, the combination tray 7a (1) to the combination tray 7a (5) and the combination tray 7a (7) to the combination tray 7a ( 9) In addition, the combination tray 7a (2) from the combination tray 7a (1), the combination tray 7a (6) from the combination tray 7a (4) and the combination tray 7a (9) from the combination tray 7a (8) are collected on the collection conveyor. 9 is discharged. That is, when the N-th combination weighing is completed, the articles are supplied only to the combination tray 7a (6), the combination tray 7b (3), and the combination tray 7b (7).

  In this case, the control unit 10 controls the entire combination weighing device 1 to transport the articles to the transport conveyor 6 without partially supplying the articles. That is, the control unit 10 controls the tray 60 corresponding to the combination tray 7a (6) so as not to supply the articles when the articles are transported by the transport conveyor 6 to supply the articles to the combination tray 7a.

  (Step 2-2) As shown in FIG. 7 (2), after the articles are transported by the transport conveyor 6 in step 2-1, the articles are moved from the combination tray 7a (1) to a position corresponding to the combination tray 7a (9). Is reached, the control unit 10 stops the transport operation of the transport conveyor 6. As a result of the Nth combination weighing, parts remain in the combination tray 7a (6). Therefore, no articles are supplied to the tray 60 corresponding to the combination tray 7a (6).

  (Step 2-3) As shown in FIG. 7 (3), the control unit 10 controls the supply unit 8 to combine the articles placed on the tray 60 with the combination except for the combination tray 7a (6). It supplies to each tray 7a. Thus, even if the articles remain on the combination tray 7a by the Nth combination weighing, the articles are supplied to all the combination trays 7a at the (N + 1) th combination weighing.

  (Step 2-4) As shown in FIG. 7 (4), as a result of the N-th combination weighing, the articles remain in the combination tray 7b (3) and the combination tray 7b (7).

  In this case, the control unit 10 controls the entire combination weighing device 1 to transport the articles to the transport conveyor 6 without partially supplying the articles. That is, when transporting the articles by the transport conveyor 6 to supply the articles to the combination tray 7b, the control unit 10 stores the articles in the tray 60 corresponding to the combination tray 7b (3) and the combination tray 7b (7). Control not to supply.

  (Step 2-5) As shown in FIG. 7 (5), after the articles are transported by the transport conveyor 6 in step 2-4, the articles are moved from the combination tray 7b (1) to a position corresponding to the combination tray 7b (9). Is reached, the control unit 10 stops the transport operation of the transport conveyor 6. As a result of the Nth combination weighing, parts remain on the combination tray 7b (3) and the combination tray 7b (7). Therefore, no articles are supplied to the combination tray 7b (3) and the tray 60 corresponding to the combination tray 7b (7).

  (Step 2-6) As shown in FIG. 7 (6), the control unit 10 controls the supply unit 8 to transfer the articles placed on the tray 60 to the combination tray 7b (3) and the combination tray 7b (3). It supplies to each combination tray 7b except 7b (7). Thus, even if the articles remain on the combination tray 7a by the Nth combination weighing, the articles are supplied to all the combination trays 7b at the (N + 1) th combination weighing.

  (Step 2-7) As shown in FIG. 7 (7), articles are supplied to the combination tray 7a and the combination tray 7b by the operation up to step 2-6. In this state, the control unit 10 causes the collection conveyor 9 to discharge a combination result selected by a combination calculation in advance among the articles supplied to the combination tray 7a and the combination tray 7b.

  By the above operation, the control unit 10 supplies the articles to the combination tray 7a and the combination tray 7b by the (N + 1) th combination weighing, and can complete the combination weighing.

(Summary)
The combination weighing device 1 according to the present embodiment includes an input unit 5 that inputs an article onto a conveyor 6, a plurality of combination trays 7 a and a plurality of combination trays 7 b arranged along the conveyance direction of the conveyor 6, The supply section 8 for transferring the articles placed in the section to the combination tray 7a or the combination tray 7b corresponding to the section group, the input section 5, the transport conveyor 6, and the supply section 8 are each driven and controlled. A control unit 10 for determining the optimum combination by combining the weighing values corresponding to the respective articles of the tray 7a and the combination tray 7b, and discharging the articles from the combination tray 7a and the combination tray 7b relating to the determined optimum combination. 10 controls the timing at which articles are input from the input section 5 to the transport conveyor 6 so that In the section corresponding to the combination tray 7a or the combination tray 7b from which the articles are discharged at the time of the Nth combination weighing, the articles are thrown in from the input section 5 at the time of the (N + 1) th combination weighing. The articles are supplied to the combination tray from which the articles have been discharged during the Nth combination weighing.

  With the above configuration, it is possible to provide an inexpensive and compact device that can combine and measure even a simple substance such as a frozen fish.

  Preferably, the input section 5 is a hopper provided with a first opening / closing gate 51 for discharging articles to the transport conveyor 6 side and a second opening / closing gate 52 for discharging articles to the collection side.

  Also, preferably, the combination tray 7a or the combination tray 7b is arranged in parallel on both sides of the transport conveyor 6, and the supply unit 8 is arranged so that one of the two combination trays 7a or 7b on both sides is directed to the other. Is controlled to move.

  Also, preferably, the supply unit 8 moves in a direction orthogonal to the transport direction of the transport conveyor 6, and simultaneously moves the articles arranged on the transport conveyor 6 to the combination tray 7a or the combination tray 7b.

  Preferably, the combination tray 7a or the combination tray 7b is configured to be switchable between a horizontal position for receiving the articles from the transport conveyor 6 and an inclined position for discharging the articles on the tray by inclining the side receiving the articles downward. Is done.

  Preferably, a first conveyor 3 and a second conveyor 4 are provided in front of the charging section 5 for charging the weighed articles into the charging section 5, and the first conveyor 3 and the second conveyor 4 are provided with articles in front of the first conveyor 3 and the second conveyor 4. And a weighing hopper 22 for weighing and discharging to the first conveyor 3.

  Also preferably, a collecting conveyor 9 for collecting the articles discharged from the combination tray 7a or the combination tray 7b is arranged at a lower stage of the conveying conveyor 6, and the collecting conveyor 9 is in a direction opposite to the conveying direction of the conveying conveyor 6. To convey the goods.

(Other embodiments)
As described above, the present embodiment has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, and the like are made as appropriate.

  In the above-described embodiment, the operation of simply discharging the articles having the optimum combination with the desired target weight among the articles supplied to the combination tray 7a and the combination tray 7b has been described. However, in some situations, this optimal combination may not be selected. In this case, it is also possible to change the conditions for the combination and discharge articles that meet the changed combination conditions. For example, it is supplied to the combination tray 7a and the combination tray 7b from the first combination condition in which 12 articles among the articles supplied to the combination tray 7a and the combination tray 7b are combined and discharged so as to have the target weight value. It is conceivable to change to the second combination condition for discharging 15 of the articles regardless of the weight value.

  In the above case, the number of combinations in the first combination condition can be changed as appropriate. Also, the number of emissions under the second combination condition can be changed as appropriate.

  Further, in the above case, if the first combination condition is not satisfied, instead of the configuration changing to the second combination condition, the article P supplied to the combination tray 7a and the combination tray 7b may be forcibly discharged. I do not care.

  In the above embodiment, the configuration in which the article P is measured by the load sensor of the weighing hopper 22 has been described. However, a configuration may be adopted in which a load sensor is attached to each of the combination trays 7 and the articles P are weighed after the articles P are supplied from the transport conveyor 6 to the combination tray 7. In short, the weighing value of the article P may have any configuration as long as the weighing value is measured before the combination weighing is performed.

  Also, the conveyor 6 has been described as a conveyor for circulating the tray 60. However, the present invention is not limited to such a configuration, and may be configured with a crossed conveyor. In short, any configuration may be used as long as the section where the articles are supplied to the transport conveyor 6 and the combination tray 7 that further supplies the articles supplied to the section are associated with each other in one body. .

  As described above, the embodiments have been described as examples of the technology in the present disclosure. For that purpose, the accompanying drawings and the detailed description have been provided.

  Therefore, among the components described in the accompanying drawings and the detailed description, not only components that are essential for solving the problem, but also components that are not essential for solving the problem, in order to illustrate the above technology. May also be included. Therefore, it should not be immediately recognized that these non-essential components are essential based on the fact that the non-essential components are described in the accompanying drawings and the detailed description.

  Further, since the above-described embodiments are for exemplifying the technology in the present disclosure, various changes, replacements, additions, omissions, and the like can be made within the scope of the claims or the equivalents thereof.

  INDUSTRIAL APPLICABILITY The present disclosure is applicable to a combination weighing device that combines and discharges a single object having a variation in mass into a fixed mass.

DESCRIPTION OF SYMBOLS 1 Combination weighing apparatus 10 Control part 11 Internal memory 12 Operation part 2 Measurement part 20 Article insertion port 21 Pool hopper 22 Weighing hopper 3 First conveyor 30 Section 4 Fourth Nikon conveyor 40 Section 5 Input part 51 First opening / closing gate 52 Second opening / closing gate 53 Collection hopper 55 Discharge conveyor 6 Conveyor 60 Tray 61 Chain 62 L-shaped member 63 Linked body 7 Combination tray 72 Bracket 73 Air cylinder 74 Piston rod 8 Supply unit 80 Drive unit 81 Holding bar 82 Discharge pusher 83 Stay 9 Collection conveyor
A Transport direction
B Transport reverse direction
P goods

Claims (7)

An input section for inputting articles onto a conveyor,
A weighing unit that acquires a weighed value of the article,
A plurality of combination tray groups arranged along the transport direction of the transport conveyor,
A supply unit that transfers an article placed in a section on the transport conveyor to the combination tray group corresponding to the section group,
The input section, the conveyor, and the supply section are each driven and controlled, and the optimum combination is obtained by combining the weighing values corresponding to the articles in the combination tray group, and the articles are taken out of the combination tray according to the obtained optimum combination. And a control unit for discharging.
The control unit controls the timing of inputting the articles from the input unit to the transport conveyor, so that the combination tray that discharges the articles at the time of the Nth combination weighing among the sections on which the articles are placed on the transport conveyor. For the section corresponding to, the article is thrown from the input unit, and the article is supplied to the combination tray that has ejected the article at the time of the Nth combination weighing at the time of the (N + 1) th combination weighing,
Combination weighing device.   2. The combination weigher according to claim 1, wherein the input unit is a hopper having a first opening / closing gate for discharging articles to the transport conveyor side and a second opening / closing gate for discharging articles to the collection side. apparatus.   The combination tray group is arranged in parallel on both sides of the transport conveyor, and the supply unit is controlled to move from one combination tray group on the both sides toward the other combination tray group. The combination weighing device according to claim 1, wherein   4. The combination according to claim 1, wherein the supply unit is configured to move in a direction orthogonal to a transport direction of the transport conveyor, and to simultaneously move articles arranged on the transport conveyor onto a combination tray. 5. Weighing device.   2. The combination tray according to claim 1, wherein the combination tray is configured to be switchable between a horizontal position for receiving the articles from the transport conveyor and an inclined position for discharging the articles on the tray by inclining the side receiving the articles downward. The combination weighing device according to the above.   At the front of the loading section, a crossed conveyor for feeding the weighed articles into the loading section is provided, and at the front of the crossed conveyor, a weighing hopper for measuring and discharging the articles to the crossed conveyor is provided. The combination weighing device according to claim 1, wherein: A collection conveyor for collecting the articles discharged from the combination tray is arranged at a lower stage of the conveyance conveyor, and the collection conveyor conveys the articles in a direction opposite to a conveyance direction of the conveyance conveyor. The combination weighing device according to claim 1.