JP2006194722A - Combinational metering device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combinational metering device capable of assembling and discharging precisely and quickly corresponding to a request from the downstream side, when conveying articles discharged from a metering means by a conveyance means. <P>SOLUTION: A plurality of metering hoppers 14 are arranged in parallel in the horizontal direction, and a conveyance conveyor 15 for conveying articles X discharged from the plurality of metering hoppers 14 selected by combinational operation up to an assembly discharge position P1 in the horizontal direction is provided under the metering hoppers 14. A control device for controlling article discharge operation of each metering hopper 14 and controlling running of the conveyance conveyor 15 is provided. In this case, the control device controls timing of article discharge from each metering hopper 14 so that the articles X are assembled on a prescribed spot on the conveyance surface of the conveyance conveyor 15 and discharged from the plurality of metering hoppers 14, and controls running of the conveyance conveyor 15 so that the assembled articles X are allowed to wait once before the assembly discharge position P1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a combination weighing apparatus that combines a plurality of articles and weighs them to a target weight or a target number, and belongs to the technical field of article weighing.

  Conventionally, a combination weighing device used for automatic weighing of various articles measures the weight or number of articles accommodated in a plurality of weighing hoppers and performs a combination calculation based on these measured values. There is a product that obtains an article weighed to a target weight or target number by selecting a combination that has a weight or number closest to the target within a predetermined range and discharges the article only from the selected weighing hopper. .

  Such a combination weighing device has a configuration in which a plurality of weighing hoppers are arranged side by side in the horizontal direction, and a conveyor is provided below the weighing hopper. Are exemplified.

  First, the combination weighing device described in Patent Document 1 performs control so as to shift the discharge timing of articles from each weighing hopper based on the traveling speed of the lower conveyor and the arrangement position of the upper weighing hopper. The articles are assembled at specific locations on the conveyor. Accordingly, the articles can be intensively discharged to the downstream side at the discharge position at one end of the conveyor.

  On the other hand, the combination weighing device described in Patent Document 2 is configured such that a timing hopper that temporarily holds the same number of articles as the weighing hopper is interposed between an upper weighing hopper and a lower conveyor. In addition, a packaging machine for bagging articles is connected to one end of the conveyor, so that the article discharge operation of the timing hopper and the packaging operation of the packaging machine can be coordinated.

JP-A-1-250829 Japanese Patent Application Laid-Open No. H5-16928

  By the way, in the combination weighing device described in Patent Document 1, when a packaging machine is connected to the downstream side, articles can be intensively discharged to the packaging machine side. When there is no holding means such as a timing hopper that adjusts the supply timing of articles, the articles assembled to the target weight cannot be supplied accurately in response to requests from the packaging machine side. If it tries to supply, there is a problem that complicated and detailed control of article discharge and article conveyance becomes necessary.

  On the other hand, in the combination weighing device described in Patent Document 2, since the timing hopper is provided, accurate delivery of articles to the packaging machine connected to the downstream side is realized. Is generally expensive due to its complicated structure, and when holding an article such as broiler meat, there is a problem that it is necessary to frequently remove the adhered fat, which makes the cleaning work troublesome. . In the combination weighing device having the same number of timing hoppers as the weighing hopper, the above problem becomes more obvious.

  In the combination weighing device described in Patent Document 2, since the article discharged from the timing hopper farthest from the collective discharge position waits for the collective discharge position to arrive, the packaging machine is operated. It takes a long time for the last article to arrive at the collective discharge position after receiving an article discharge command from the packaging machine side, which is a problem in increasing the speed.

  Therefore, the present invention provides an inexpensive combination weighing device that can accurately and quickly collect and discharge according to a request from the downstream side when an article discharged from the weighing means is conveyed by the conveying means. Is an issue.

  In order to solve the above problems, the present invention is configured as follows.

  First, the invention described in claim 1 includes a plurality of weighing means arranged in parallel in the horizontal direction, and a plurality of weighing means provided along the juxtaposed direction below the weighing means and selected by a combination operation. A combination weighing device having conveyance means for conveying an article discharged from the means in a horizontal direction to a collective discharge position at one end; and a control means for controlling the article discharge operation of the weighing means and controlling the traveling of the conveyance means. The control means controls the discharge timing of the articles from each weighing means so that the articles are collected from the plurality of weighing means at a predetermined location on the conveyance surface of the conveyance means, and the The traveling of the transporting unit is controlled so that the assembled articles are temporarily held in front of the collection discharge position.

  The invention according to claim 2 is the invention according to claim 1, wherein a defective discharge position for discharging defective products discharged from the weighing means is provided on the opposite side of the collective discharge position in the conveying means. When the defective product is discharged from the weighing unit, the control unit controls the article discharging operation of the weighing unit so as to discharge the defective product onto the transfer surface of the transfer unit all at once. The travel of the transport means is controlled so that the discharged defective product is continuously transported to the defective discharge position.

  First, according to the first aspect of the present invention, since the conveying means is provided with the functions of article conveyance, article collection, and article standby, the holding means such as a timing hopper for temporarily holding the article at the collection discharge position. There is no need to provide means. In other words, the operation of the packaging machine on the article supply surface is omitted, for example, when the packaging machine is connected to the downstream side while omitting holding means such as a timing hopper that is expensive and troublesome to clean because of its generally complicated configuration. Thus, a combination weighing device that can respond appropriately according to the situation is realized at low cost.

  Further, since the articles weighed to the target weight or the target number are once put on standby before the collection discharge position, for example, when there is an article discharge command from the packaging machine side, the conveying means is run to collect the collected articles. It can be quickly supplied to the downstream packaging machine.

  According to the second aspect of the present invention, since the defective discharge position is provided on the opposite side of the collective discharge position, it is possible to take a discharge measure out of the system when a defective product is produced. A combination weighing device is realized.

  In addition, if a defective product is generated, it is not collected at a predetermined location on the transport surface, but the articles are discharged all at once from a preset weighing means, and once on standby before the defective discharge position. In order not to convey the sheet, the sheet is continuously conveyed to the defective discharge position. Therefore, for example, it is possible to promptly respond to an article discharge command from the downstream packaging machine side, that is, the next right-quantity product can be discharged quickly from the weighing means. The defective product indicates an article or the like that is forcibly discharged from the weighing hopper when the combination is not established by the combination calculation, and the positive-quantity product indicates an article that is selected and discharged as a combination.

  A combination weighing device according to an embodiment of the present invention will be described.

  As shown in FIG. 1, the combination weighing device 1 measures a target weight by combining a plurality of non-constant articles X such as broiler meat, and supplies them to a packaging machine 2 connected downstream. The table 11, a plurality of supply troughs 12 ... 12, the same number of pool hoppers 13 ... 13, the same number of weighing hoppers 14 ... 14, and the conveyor 15 are assembled in order from the upstream side to the base 1a. Further, cover members 16 and 16 are shown on both sides along the transport direction of the transport conveyor 15, and the correct amount is discharged to the collective discharge position P 1 and the defective discharge position P 2 on both ends of the transport conveyor 15. A chute 17 and a defective product discharge chute 18 are provided. In the example shown in the figure, five supply troughs 12, 12, pool hoppers 13, 13, and weighing hoppers 14, 14 are arranged corresponding to each other in the vertical direction and have a five-head configuration.

  The table 11 is used, for example, for the operator to distribute and input the article X to the supply trough 12 directly below through the input port (not shown). The supply trough 12 is of a vibration type, and the tip from which the article X is discharged is inclined downward toward the pool hopper 13 and is arranged in five horizontal rows at equal intervals. The pool hopper 13 and the weighing hopper 14 are arranged at equal intervals in a horizontal row corresponding to the supply trough 12, and both have gates 13a and 14a that open up and down and open and close the lower opening. ing. The weighing hopper 14 is connected to a weight detector such as a load cell (not shown), and the weight of the stored article X is measured.

  The conveyor 15 is of a flat belt type, and is arranged extending horizontally in a direction directly below the weighing hoppers 14... 14, so that the conveyor surface can move forward and backward as indicated by arrows a and b. During forward rotation indicated by a, the article X is conveyed in the direction of the collective discharge position P1 on the right side in the example, and during reverse rotation indicated by arrow b, the article X is conveyed in the direction of the defective discharge position P2 on the left side. Both the right-quantity product discharge chute 17 and the defective product discharge chute 18 are opened up and down. Particularly, the right-quantity product discharge chute 17 is shaped to be narrowed downward, and the article X discharged from the lower opening is It is reliably guided to the packaging machine 2. The cover member 16 is a substantially L-shaped flat plate when viewed from the front, and prevents the article X conveyed by the conveyor 15 from dropping from the conveying surface.

  As shown in FIG. 2, the combination weighing device 1 includes a control device 19 that comprehensively controls the operation thereof.

  The control device 19 inputs the weighing signal obtained by the weight detector in the weighing hoppers 14... 14, performs a combination operation based on the weighing signal, and matches the target weight or is closest to the target weight within an allowable range. Select the combination that will be the weight.

  The control device 19 also controls the drive of the supply troughs 12... 12 and the discharge of articles X... X from the pool hoppers 13. And a control signal for controlling the. The control device 19 is characterized in that case when the articles X... X are discharged from the plurality of weighing hoppers 14... 14 selected for the combination onto the transport surface of the transport conveyor 15. The opening / closing operation of the gates 14a ... 14a of the weighing hoppers 14 ... 14 is controlled so that the articles X ... X gather at predetermined locations on the transport surface, and the articles X ... X gathered on the transport surface are gathered and discharged at a position P1. The travel of the conveyer 15 is controlled so as to temporarily stand by at a predetermined position before the positive-quantity product discharge chute 17 provided in the above.

  Then, the control device 19 inputs an article discharge command signal from the packaging machine 2 and outputs an article discharge completion signal to the packaging machine 2.

  Next, the operation of the combination weighing device 1 will be described. In particular, the control operation executed by the control device 19 will be mainly described with reference to the flowchart shown in FIG. 3 and the discharge operation of the weighing hoppers 14... 14 and the travel operation of the conveyor 15 shown in FIGS. To do.

  For example, when an operator inputs an article X on the table 11 from an insertion port corresponding to an empty pool hopper 13, the introduced article X is supplied to the pool hopper 13 through the corresponding supply trough 12. When the weighing hopper 14 immediately below the pool hopper 13 is empty, the gate 13a of the pool hopper 13 is opened, and the article X is accommodated in the weighing hopper 14 and its weight is weighed. Then, when the article X accommodated in each weighing hopper 14 is weighed, a combination calculation is performed based on these weighed values.

  That is, as shown in FIG. 3, after performing combination calculation based on the measured value by each weighing hopper 14 in step S1, whether or not the combination is established in step S2, that is, a preset target weight is set. It is determined whether or not a combination that matches or is within the allowable range and closest to the target weight has been selected.

  If YES is determined in the step S2, the process proceeds to a step S3 to wait for an article discharge command from the packaging machine 2 side. In step S4, the conveyor 15 is forwardly rotated, and the combination is selected in the step S5. Articles X... X, that is, positive-quantity products are discharged from the weighing hoppers 14. And when predetermined time passes, the driving | running | working of the conveyance conveyor 15 is stopped by step S6. The predetermined time is set to a time required for the articles X... X discharged from the weighing hoppers 14... X to arrive at a later-described set standby position before the set discharge position P1.

  Next, in step S7, it is determined whether or not the end of the combination weighing work has been instructed. If it is determined as YES, all the work is ended, while if it is determined as NO, the process returns to step S1 to repeat the above-described operation.

  In this case, when the process proceeds again through steps S1 to S3 to step S4, the articles X... X, that is, the positive amount discharged from the weighing hoppers 14. Since the goods are waiting, the articles X... X are discharged to the packaging machine 2 side through the correct quantity discharge chute 17 by causing the transport conveyor 15 to run forward.

The discharging operation of the weighing hoppers 14... 14 and the traveling operation of the conveyor 15 will be described with reference to FIG. In the following description, the five weighing hoppers 14... 14 are referred to as first to fifth weighing hoppers 14 _{1 to} 14 ₅ as necessary, and these first to fifth weighing hoppers 14 _{1 to} 14 are also referred to. ₅ respectively, for even article X ... X, which is housed denoted by the subscript and the article X ₁ to X _5, the to be specifically and clarity of the operation.

As shown in FIG. 4 (a), the article _X 1 to X ₅ contained in the first to fifth weighing hopper ₁₄ 1-14 ₅ are combination calculation performed, first in the illustrated example, the third and, The fourth weighing hoppers 14 ₁ , 14 ₃ , and 14 ₄ are selected as combinations. At this time, the conveyor 15 is stopped. The articles X ₁ , X ₃ , X ₄ are shaded to indicate that they have been selected in the current combination calculation.

When the combination is established and there is an article discharge command, as shown in FIG. 4B, the transport conveyor 15 travels in the normal rotation direction indicated by the arrow a, that is, in the collective discharge position P1, and first, the first weighing hopper 14 article X ₁ which gate 14a is accommodated opens the ₁ is discharged onto the conveying surface of the conveyor 15. At the start of combination weighing, since the article X is not waiting at the collective standby position P1 ′ provided at a predetermined position before the collective discharge position P1, it is discharged to the positive-quantity product discharge chute 17 by the traveling of the conveyor 15. There is no article X to be used.

Then, 4 as shown in (c), said the article _{X 1} arrives just below the vicinity of the third weighing hopper 14 _3, the article _{X 3} gate 14a of the third weighing hopper 14 ₃ is accommodated opens There is discharged to the vicinity of the article X _1.

Furthermore, as shown in FIG. 4 (d), is the article _X 1, _{X 3} When you arrive just below the vicinity of the fourth weighing hopper 14 _4, the gate 14a of the fourth weighing hopper 14 ₄ is accommodated opens Article X ₄ is discharged in the vicinity of the articles X ₁ and X ₃ .

Then, as shown in FIG. 4 (e), the articles X ₁ , X ₃ , X ₄ discharged from all the weighing hoppers 14 ₁ , 14 ₃ , 14 ₄ selected for the present combination and gathered in a substantially lump. Arrives at the collective standby position P1 ′, the travel of the conveyor 15 is stopped.

In that case, the timing at which the gates 14a... 14a of the first, third, and fourth weighing hoppers 14 ₁ , 14 ₃ , 14 ₄ described above are opened depends on the traveling speed of the conveyor 15 and the first to fifth weighing hoppers 14 _1. It is set based on the arrangement position of the ~ 14 _5.

Incidentally, FIG. 4 (c), (d) , (e), the first, third, and fourth metering the articles _{X 1,} X 3, _{X 4} which accommodates been selected in the combination are discharged In the hopper _{14 1,} 14 3, 14 _4, corresponding pool hoppers 13 ... 13 new articles from _{X 1,} X 3, _{X 4} is supplied.

Then, as shown in FIG. 4 (f), when there is an article discharge command from the packaging machine 2 side, the conveyor X 15 has run forward in the direction of the arrow a, and the articles X ₁ , X ₃ , X that have been waiting for gathering are collected. ₄ is discharged in the direction of the packaging machine 2 indicated by the arrow through the positive-quantity product discharge chute 17 and is selected as a result of the next combination calculation, for example, second to fourth weighing hoppers 14 ₂ , 14 ₃ , 14 ₄ of, is first discharged from the second weighing hopper 14 ₂ on the conveying surface of the article X ₂ are conveyor 15, sequentially article X _3, X ₄ is to be set is discharged later. When the articles X ₁ , X ₃ , X ₄ are discharged through the positive-quantity product discharge chute 17, an article discharge completion signal is output, and the packaging machine 2 performs a predetermined packaging operation.

  Returning to FIG. 3, if NO is determined in step S <b> 2, then in step S <b> 8, it is determined whether or not the articles X... X are additionally supplied to the weighing hoppers 14. After the articles X... X are additionally supplied to the weighing hoppers 14... 14 set in advance, the process returns to step S1. In this case, for example, when the second additional supply is executed for the predetermined weighing hoppers 14... 14, NO is determined instead of YES to avoid overflow of the article X in the weighing hopper 14. A determination criterion may be provided to do so.

  If NO is determined in step S8, it is determined in step S10 whether or not there are articles X.

  And if it determines with YES by the said step S10, it will progress to step S11, will wait for the articles | goods discharge | emission command from the packaging machine 2 side, will make the conveyance conveyor 15 run forward rotation in step S12, and when predetermined time passes, In S13, after the traveling of the conveyor 15 is stopped, the process proceeds to Step S7. In this case, the article X is not discharged from the weighing hopper 14, and the predetermined time is the time required for the articles X... X at the collection standby position P1 ′ to be discharged to the positive-quantity item discharge chute 17. Etc. are set.

  On the other hand, if NO is determined in step S10, the process proceeds to step S14, waits for an article discharge command from the packaging machine 2 side, and in step S15, the conveyor 15 is run in reverse, and in step S16, in advance. The articles X... X are discharged from the set weighing hoppers 14. When the predetermined time has elapsed, in step S17, the traveling of the conveyor 15 is stopped, and then the process proceeds to step S7. In this case, the articles X... X are discharged to the defective product discharge chute 18 and the articles X... X are not discharged to the positive-quantity product discharge chute 17, so that no article discharge completion signal is output. Does not perform the packaging operation. It should be noted that the predetermined time is set to the time required for the articles X... X discharged from the weighing hoppers 14.

  The discharging operation of the weighing hoppers 14... 14 and the traveling operation of the transport conveyor 15 when discharging defective products will be described with reference to FIG.

As shown in FIG. 5 (a), among the first to fifth weighing hopper ₁₄ 1-14 ₅ accommodating the articles _X 1 to X _5, the first and second weighing hoppers ₁₄ 1, 14 ₂ defective from It is preset to discharge. At this time, the conveyor 15 is stopped. Note that the articles X ₁ and X ₂ are shaded to indicate that they are defective.

As described above, when it is determined that additional supply is not performed, that is, the article X... X is forcibly discharged as a defective product, as shown in FIG. The articles X ₁ and X ₂ that travel in the direction P 2 and are accommodated with the gates 14 a and 14 a of the first and second weighing hoppers 14 ₁ and 14 ₂ opened at the same time are discharged onto the transport surface of the transport conveyor 15. .

Then, as shown in FIG. 5C, the discharged articles X ₁ , X _2, that is, defective products are continuously conveyed to the defective discharge position P 2 by the conveying conveyor 15 that runs in reverse, and defective products are discharged. It is sequentially discharged through the chute 18 and collected. Note that new articles X ₁ and X ₂ are supplied from the corresponding pool hoppers 13 to 13 to the first and second weighing hoppers 14 ₁ and 14 _{2 from} which the articles X ₁ and X ₂ are discharged, and the next combination is performed. Articles X _{1 to} X ₅ accommodated in the _first to fifth weighing hoppers 14 _{1 to} 14 ₅ participate in the calculation. Further, when the articles X ₁ and X ₂ are discharged from the defective product discharge chute 18, there is no article X on the transfer surface of the transfer conveyor 15.

  By the way, when the articles X... X gathered in a mass on the transport surface of the transport conveyor 15 are discharged simultaneously through the positive-quantity product discharge chute 17, the volume of the articles X. On the other hand, when the lower opening of the right-quantity product discharge chute 17 is narrow, the article X... X may be clogged by the lower opening, which hinders the operation of the production line including the downstream packaging machine 2. There is. As a measure to cope with this, when the articles X... X are sequentially discharged from the weighing hoppers 14... 14 onto the transport surface of the transport conveyor 15 and gathered, the volume can pass through the lower opening and they are spaced apart from each other. You may divide and gather beforehand in the range which does not.

  For example, as shown in FIG. 6, when the total weight w of the articles X... X does not exceed a limit weight w0 that may cause a clogging trouble when passing through the lower openings of the right-quantity product discharge chute 17 all at once. In this case, the articles X... X may be discharged from the weighing hoppers 14.

  On the other hand, as shown in FIG. 7, when the total weight w of the articles X ... X exceeds the limit weight w0, the total weight w1 and the total weight w2 do not exceed the limit weight w0, and the conveyor 15 The lumps are divided so as to be slightly separated from each other on the conveying surface, and the articles X... X are discharged from the weighing hoppers 14. The separation interval is desirably an interval that does not require time for mischief during collective discharge, and the number of divisions is appropriately set according to the total weight w, the dimensional specification of the positive-quantity product discharge chute 17, and the like. The

  Thereby, even when the lower opening of the positive-quantity product discharge chute 17 is narrow, the articles X... X measured to the target weight can be discharged while avoiding the clogging trouble, and this combination weighing device 1 is more versatile. There will be something.

  With the configuration described above, according to the combination weighing device 1 according to the present embodiment, first, the conveyor 15 is provided with the functions of article conveyance, article collection, and article standby. There is no need to provide holding means such as a timing hopper for temporarily holding the articles X. In other words, the packaging machine 2 is provided on the article supply surface, for example, when the packaging machine 2 is connected to the downstream side while omitting holding means such as a timing hopper that is expensive and cumbersome because of its generally complicated configuration. Thus, the combination weighing device 1 that can appropriately cope with the operation is realized at low cost.

  Further, the articles X... X that have been weighed to the target weight or the target number are temporarily put on standby before the collection discharge position P1, so that, for example, when there is an article discharge command from the packaging machine 2, the conveyor 15 is rotated forward. Thus, the assembled articles X ... X can be quickly supplied to the downstream packaging machine 2.

  On the other hand, since the defective discharge position P2 is provided on the opposite side of the collective discharge position P1, it is possible to discharge the system out of the system when a defective product occurs, and the versatile combination weighing device 1 is realized. .

  In addition, when a defective product occurs, the articles X... X are discharged all at once from the preset weighing hoppers 14. Rather than transporting to stand by just before the position P2, the transport surface is continuously transported to the defective discharge position P2, so that the transport surface quickly becomes free of articles X ... X. Therefore, for example, it is possible to quickly respond to an article discharge command from the downstream packaging machine 2 side, that is, to immediately discharge the next correct quantity product from the weighing hoppers 14.

  In the above-described embodiment, an example is shown in which the weight of each article X is measured and combined with the target weight, but the present invention may be applied to a combination weighing device that combines the target number with the target number.

  As described above, according to the present invention, when the articles discharged from the weighing means are transported by the transport means, the combination weighing device can collect and discharge accurately and quickly according to a request from the downstream side. Can be provided at low cost. That is, the present invention relates to a combination weighing apparatus that combines a plurality of articles and weighs them to a target weight or target number, and is widely suitable for the technical field of article weighing.

1 is a schematic front view of a combination weighing device according to an embodiment of the present invention. It is a control system figure of a combination weighing device. It is a flowchart which shows control operation. FIG. 5 is an excerpt of the main part for explaining the discharge operation of the weighing hopper and the traveling operation of the conveyor when discharging a correct quantity product, in which (a) shows a state in which the combination is selected in the combination calculation; (b) Is the state where the conveyor is running forward and the article is discharged from the first weighing hopper, (c) is the state where the article is discharged from the third weighing hopper, and (d) is the article being discharged from the fourth weighing hopper. (E) is a state in which the transport conveyor has stopped traveling, and (f) is a state in which the transport conveyor is running forward and the articles are discharged at the collective discharge position and the articles are discharged from the second weighing hopper. Indicates the state. FIG. 5 is an excerpt of the main part for explaining the discharging operation of the weighing hopper and the traveling operation of the conveyor when discharging defective products, wherein (a) is a state in which a weighing hopper for discharging defective products is instructed; b) shows a state in which the conveyor is running in reverse and articles are discharged from the weighing hoppers simultaneously, and (c) shows a state in which articles are sequentially discharged at the defective discharge position. FIG. 6 is an excerpt of a main part when a regular product is discharged in a lump through a regular product discharge chute. It is a main part extraction figure in the case of dividing | segmenting a right quantity product and discharging via a right quantity product discharge chute.

Explanation of symbols

1 Combination weighing device 14 Weighing hopper (measuring means)
15 Conveyor (conveying means)
19 Control device (control means)
P1 collective discharge position P1 'collective standby position P2 defective discharge position X goods

Claims (2)

  A plurality of weighing means arranged side by side in the horizontal direction, and articles discharged from the plurality of weighing means selected by the combination calculation provided below the weighing means along the parallel arrangement direction at one end A combination weighing device having conveyance means that conveys horizontally to a position; and control means that controls the article discharge operation of the weighing means and also controls travel of the conveyance means, wherein the control means includes The timing of discharging the articles from each weighing means is controlled so that the articles are collected from the weighing means at a predetermined location on the conveying surface of the conveying means, and the collected articles are placed in front of the collective discharge position. The combination weighing device is characterized by controlling the travel of the conveying means so as to make it stand by once. On the opposite side of the collective discharge position in the transport means, a defective discharge position for discharging defective products discharged from the weighing means is provided, and when discharging defective products from the measuring means, the control means Control the article discharge operation of the weighing means so that defective products are discharged onto the transfer surface of the transfer means all at once, and continuously transfer the discharged defective products to the defect discharge position. The combination weighing apparatus according to claim 1, wherein traveling of the conveying unit is controlled.

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