JP6675922B2 - Combination scale - Google Patents

Description

  The present invention relates to a combination weigher.

  Conventionally, in a combination weigher, for example, a collecting chute is disposed below a plurality of weighing hoppers. Then, a combination of weighing hoppers in which the total weight of the objects to be weighed is within a predetermined weight range (hereinafter, referred to as a “discharge combination”) is obtained. And supplied to a packaging machine. In such a combination weigher, the collecting chute has a double structure including an inner chute and an outer chute in order to improve the processing capacity, and the weighing hopper is used as an inner chute or an outer chute. There has been proposed a structure having a structure capable of discharging the liquid (see, for example, Patent Documents 1 and 2).

  Patent Literature 1 includes an inner chute and two outer chutes, and, for example, obtains two discharge combinations of a discharge combination for discharging an object to be weighed to an inner chute and a discharge combination for discharging an object to be weighed to an outer chute. A combination weigher for discharging objects to be weighed simultaneously from weighing hoppers selected for two discharge combinations is described.

  Patent Literature 2 further includes an inner chute and two outer chutes, for example, a discharge combination for discharging an object to be weighed to the inner chute, a discharge combination for discharging an object to be weighed to one outer chute, and the other. There is described a combination weigher for obtaining three discharge combinations with a discharge combination for discharging an object to be weighed to an outer chute, and simultaneously discharging the objects to be weighed from a weighing hopper selected as the three discharge combinations.

  In these combination weighers, collecting hoppers are provided at the respective outlets of the inner chute and the outer chute, and the objects to be weighed discharged from the weighing hopper are temporarily held by the collecting hopper and then discharged from the collecting hopper. .

JP 2007-183237 A JP 2009-121973 A

  A packaging machine is disposed below the combination weigher as described above, and the objects to be weighed discharged from the combination weigher are generally put into the packaging machine and packed in a bag. In some cases, the packaging machine is changed to a packaging machine of a different model, or when the combination weigher and the packaging machine are newly installed, the model of the packaging machine to be installed is changed. When the model of the packaging machine is changed as described above, the number of the inlets and the processing capacity of the packaging machine may be changed.

  On the other hand, for example, a combination weigher that obtains two discharge combinations and discharges them at the same time as in Patent Literature 1 and a combination weigher that obtains three discharge combinations and discharges them at the same time as in Patent Literature 2, respectively, The number of weighing hoppers installed to obtain the combination accuracy is different. That is, the apparatus itself of the combination weigher is different, and the processing capacity is also different. Therefore, when the model of the packaging machine is changed as described above, the combination weigher may need to be changed to one suitable for the packaging machine.

  The present invention has been made in order to solve the above-described problems, and has as its object to provide a combination weigher that can cope with a change in the type of a packaging machine.

  In order to achieve the above object, a combination weigher according to an aspect of the present invention is divided into two groups in advance, and each of the supplied objects to be weighed is selectively switched between a first direction and a second direction. A plurality of hoppers to be discharged, a first chute arranged to correspond to the hoppers, and a first chute for collecting the objects to be weighed discharged from the hopper in the first direction and discharging the weighed objects from a discharge port; From each of the hoppers of the one side and the other side group, which are divided into the other side group, the two weighing objects discharged in the second direction are collected and discharged from the discharge port, respectively. A first discharge combination comprising a second chute and a combination of the hoppers selected from the hoppers of the one side group and discharging the object to be weighed in the second direction based on a first combination condition; And the other A second discharge combination consisting of a combination of the hoppers selected from among the hoppers in the side group and discharging the objects to be weighed in the second direction, and a second discharge combination including the combination of the hoppers in the one side and the other side group. A first operation mode for repeatedly performing a first combination process for obtaining a third discharge combination including the combination of the hoppers for discharging the object to be weighed in the first direction selected from the first combination mode, and a second combination condition. A fourth discharge combination comprising a combination of the hoppers selected from among the hoppers of the one side and the other side to discharge the object to be weighed in the second direction, A second combination process for obtaining a fifth discharge combination of the hoppers selected from the hoppers in the other group and discharging the object to be weighed in the first direction is repeated. A second operation mode to be performed, a combination means for performing any one operation mode selected in advance from the first operation mode and the second operation mode, and When the first combination process is performed, the object to be weighed is discharged in the second direction to the hopper selected as the first discharge combination and the second discharge combination, and the third discharge process is performed. Performing a first discharge process for discharging the objects to be weighed in the first direction with respect to the hopper selected as the discharge combination, and performing the second combination process when the combination process performs the second combination process; The object to be weighed is discharged in the second direction to the hopper selected in the discharge combination of No. 4, and the object to be weighed in the first direction to the hopper selected in the fifth discharge combination. Discharge the second Discharge control means for performing discharge processing.

  According to this configuration, when the first operation mode is selected, the first to third discharge combinations are obtained, and the objects to be weighed are selected from the hoppers selected for each of the discharge combinations. Since the discharging is repeated, it is convenient when three input ports of the packaging machine are arranged below the combination weigher. On the other hand, when the second operation mode is selected, the fourth and fifth discharge combinations are obtained, and the object to be weighed is discharged from the hopper selected for each of these discharge combinations. Is repeated, which is convenient when two input ports of the packaging machine are arranged below the combination weigher. Therefore, it is possible to easily cope with the case where the model of the packaging machine is changed.

  A mode selection unit that selects one of the first operation mode and the second operation mode; and the combination unit performs the operation mode selected by the mode selection unit. It may be configured as follows.

  The second operation mode includes a first sub-mode and a second sub-mode, and when the first sub-mode of the second operation mode is selected by the mode selection unit, the combination unit includes the first sub-mode and the second sub-mode. The second combination process is configured to repeatedly perform the second combination process by repeatedly obtaining the four discharge combinations and the fifth discharge combination at the same time, and the second sub-mode of the second operation mode is set by the mode selection means. When selected, the combination means may be configured to repeatedly perform the second combination process by repeatedly obtaining the fourth discharge combination and the fifth discharge combination.

  A first collecting hopper that is provided at an outlet of the first chute and temporarily holds and discharges the object to be weighed discharged from the outlet, and is provided at each of the outlets of the two second chutes; Two second collecting hoppers for temporarily holding and discharging the objects to be weighed discharged from the discharge port may be further provided.

  ADVANTAGE OF THE INVENTION This invention has the structure demonstrated above and has the effect that it can provide the combination weigher which can respond even when the model change of a packaging machine etc. is performed.

FIG. 1A is a schematic schematic view of a partial cross section of an example of a combination weigher according to an embodiment of the present invention viewed from the side, and FIG. 1B is an inner chute and an outer chute of the combination weigher. FIG. 2 is a schematic diagram of the weighing hopper and the weighing hopper viewed from above.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the following, the same or corresponding elements are denoted by the same reference symbols throughout the drawings, and redundant description will be omitted. Further, the present invention is not limited to the following embodiments.

(Embodiment)
FIG. 1A is a schematic schematic view of a partial cross section of an example of a combination weigher according to an embodiment of the present invention viewed from the side, and FIG. 1B is an inner chute and an outer chute of the combination weigher. FIG. 2 is a schematic diagram of the weighing hopper and the weighing hopper viewed from above.

  In this combination weigher, as shown in FIG. 1A, an object to be weighed supplied from an external supply device is radially dispersed by vibration on an upper portion of a center base (body) 15 disposed in the center of the device. A conical dispersion feeder 1 is provided. Around the dispersion feeder 1, a plurality of linear feeders 2 are provided for sending the objects to be weighed sent from the dispersion feeder 1 to the respective supply hoppers 3 by vibration. A supply hopper 3 is provided below each linear feeder 2, and a weighing hopper 4 is further provided below the supply hopper 3. A plurality of the supply hoppers 3 and the weighing hoppers 4 are circularly arranged around the center base 15. The linear feeder 2, the supply hopper 3, and the weighing hopper 4 are provided correspondingly. Further, a weight sensor 41 such as a load cell for measuring the weight of the object to be weighed in the weighing hopper 4 is attached to each of the weighing hoppers 4, and the measured value of each of the weight sensors 41 is output to the control device 31.

  Below the weighing hoppers 4 arranged in a circular shape, an inner chute (first chute) 5 having a substantially inverted truncated cone shape is disposed, and an upper opening is concentric around the inner chute 5, and Two divided outer chutes (second chutes) 6a and 6b are provided. Each of the weighing hoppers 4 has a configuration in which two discharge gates are provided so that the object to be weighed can be selectively discharged to the inner chute 5 and the outer chutes 6a and 6b below the weighing hopper 4. 1A, a shape close to the actual weighing hopper 4 and a first discharge gate 22 and an outer chute for discharging an object to be measured (in the first direction) to the inner chute 5 (in the first direction). A second discharge gate 23 for discharging an object to be weighed to 6a, 6b (in the second direction) is schematically shown.

  Note that group A shown in FIG. 1B is a group of weighing hoppers 4 corresponding to one outer chute 6a, and group B is a group of weighing hoppers 4 corresponding to the other outer chute 6b. A group C (= A + B) composed of all the weighing hoppers 4 is a group of the weighing hoppers 4 arranged above the inner chute 5 and corresponding to the inner chute 5. Therefore, each weighing hopper 4 belongs to two groups, a group corresponding to a certain one outer chute and a group corresponding to one inner chute.

  A collecting hopper (first collecting hopper) 7 is provided at the lower discharge port 5e of the inner chute 5, and a collecting hopper (second collecting hopper) is also provided at the lower discharge ports 6ae and 6be of the outer chutes 6a and 6b. 8a and 8b are provided. Each of the collecting hoppers 7, 8a, 8b can temporarily hold an object to be weighed and discharge it downward.

  Below the combination weigher, for example, a packaging machine (not shown) is arranged, and the objects to be weighed discharged from the collecting hoppers 7, 8a, 8b are put into the packaging machine and packed in bags.

  The operation display 32 is configured using, for example, a touch panel display, etc., and has input means for performing operations such as start and stop of operation of the combination weigher and setting of combination conditions, and combination processing such as operation speed and combination weight. Display means for displaying the result of the above on a screen (display screen).

  The control device 31 includes a CPU, a microcontroller including a ROM, a RAM, and the like in which an operation program and operation parameters of the CPU are stored, and the CPU executes the operation program stored in the ROM. Thus, the operation of the entire combination weigher is controlled. That is, the control device 31 controls the vibration operation of the dispersion feeder 1 and the linear feeder 2, and also controls the opening and closing operations of the supply hopper 3, the weighing hopper 4, and the discharge gates of the collecting hoppers 7, 8a, 8b. The control device 31 inputs a signal from the operation display 32 and outputs a signal such as data to be displayed on the operation display 32. Note that the control device 31 may be configured by a single control device that performs centralized control, or may be configured by a plurality of control devices that perform distributed control in cooperation with each other.

  This combination weigher has first and second operation modes, and the operator operates the operation display 32 to select and control one of the first and second operation modes. It can be set in the device 31. The control device 31 performs a combination process for obtaining a combination of the weighing hoppers 4 for discharging the objects to be weighed, but the combination process differs depending on the set operation mode.

  As described above, the operation display 32 has a function as a mode selection unit. Further, the control device 31 has a function as a combination unit and a discharge control unit.

  First, a case where the first operation mode is set in the control device 31 will be described. In the combination process (first combination process) in the first operation mode, three discharge combinations a, b, and c described later are obtained based on the first combination condition. Specifically, from the weighing hoppers 4 of the group A on the right side in FIG. 1B, a combination of the weighing hoppers 4 in which the total weight of the supplied objects is within a predetermined weight range (hereinafter, “appropriate amount One combination) is determined, and is determined as a discharge combination (first discharge combination) a. Further, one suitable combination is obtained from the weighing hoppers 4 of the group B on the left side, and is determined as a discharge combination (second discharge combination) b. Further, one suitable combination is obtained from the group C, that is, all the weighing hoppers 4, and the combination is determined as the discharge combination (third discharge combination) c. Here, the same weighing hopper 4 is not included in the discharge combinations a and b and the discharge combination c.

  Then, the control device 31 simultaneously discharges the objects to be weighed from the weighing hoppers 4 selected for the discharge combinations a, b, and c at a predetermined timing. At this time, the object to be weighed in the weighing hopper 4 selected for the discharge combination a is discharged to the outer chute 6a and temporarily held by the collecting hopper 8a. The object to be weighed in the weighing hopper 4 selected as the discharge combination b is discharged to the outer chute 6b and temporarily held by the collecting hopper 8b. The object to be weighed in the weighing hopper 4 selected in the discharging combination c is discharged to the inner chute 5 and temporarily held by the collecting hopper 7. Further, the control device 31 simultaneously discharges the objects to be weighed held by the collecting hoppers 7, 8a, 8b at a predetermined timing, for example.

  When the first operation mode is set, for example, an input port of the packaging machine is arranged below each of the collecting hoppers 7, 8a, 8b, and discharged from each of the collecting hoppers 7, 8a, 8b. To be weighed is produced as a bag.

  Further, the control device 31 opens the discharge gate of the supply hopper 3 above the empty weighing hopper 4 from which the object to be weighed has been emptied, discharges the object to be weighed, and supplies the object to the weighing hopper 4. Further, the linear feeder 2 corresponding to the empty supply hopper 3 is driven to supply the object to be weighed to the supply hopper 3. Further, the dispersing feeder 1 is driven at the same time as the driving of the linear feeder 2 to supply the object to be weighed to the linear feeder 2. The control device 31 repeatedly performs the combination process, and causes the above operation to be performed each time the combination process is performed. This is the same in the case of a second operation mode described later.

  The timing at which the objects to be weighed are discharged from the weighing hoppers 4 selected for the discharge combinations a, b, and c described above is an example, and is not limited to the above example. For example, the discharge combinations a, b, and c may be obtained at different times, and the timing at which the objects to be weighed are discharged from the weighing hoppers 4 selected for the discharge combinations a, b, and c may be shifted accordingly. . Further, the timing at which the objects to be weighed are discharged from the collecting hoppers 7, 8a, 8b may be shifted.

  In this combination weigher, as described above, the number of weighing hoppers 4 is determined so that a desired combination accuracy can be obtained even if the three discharge combinations a, b, and c are determined at the same time. For example, the number of weighing hoppers 4 in each of the groups A and B is set to about ten.

  Next, a case where the second operation mode is set in the control device 31 will be described. The second operation mode includes a first sub-mode and a second sub-mode, and the operator operates the operation display 32 to select one of the first sub-mode and the second sub-mode. Can be set in the control device 31.

  First, the case where the first sub-mode of the second operation mode is set in the control device 31 will be described.

  In the combination process (second combination process) in the first sub-mode, two discharge combinations d and e described later are obtained based on the second combination condition (part 1). Specifically, two suitable combinations are simultaneously determined from group C, that is, all the weighing hoppers 4, and one of the combinations is discharged to the outer chutes 6a and 6b (the outer discharge combination; the fourth discharge combination). The discharge combination is determined as d, and the other is determined as the discharge combination (inside discharge combination; fifth discharge combination) e for discharging the object to be measured to the inner chute 5. Here, the same combination weighing hopper 4 is not included in the discharge combination d and the discharge combination e.

  Then, the control device 31 simultaneously discharges the objects to be weighed from the weighing hoppers 4 selected for the discharge combinations d and e at a predetermined timing. At this time, the objects to be weighed in the weighing hopper 4 selected in the discharge combination d are discharged to the outer chutes 6a and 6b and temporarily held by the collecting hoppers 8a and 8b. The object to be weighed in the weighing hopper 4 selected for the discharge combination e is discharged to the inner chute 5 and temporarily held by the collecting hopper 7. Further, the control device 31 simultaneously discharges the objects to be weighed held by the collecting hoppers 7, 8a, 8b at a predetermined timing, for example.

  When the first sub-mode is set, for example, two loading ports of the packaging machine are arranged below the combination weigher, and the objects to be weighed discharged from the two collecting hoppers 8a and 8b are placed in one of the loading hoppers. The weighing object discharged from the collecting hopper 7 is put into the mouth and produced as a bagged product, and is put into the other inlet and produced as a bagged product. In this case, a device such as a funnel for guiding the objects to be weighed discharged from the two collecting hoppers 8a and 8b to one input port of the packaging machine is required. If necessary, a simple device such as a funnel or a pipe for guiding the object to be weighed discharged from the collecting hopper 7 to the other inlet of the packaging machine may be used.

  Next, a case where the second sub-mode of the second operation mode is set in the control device 31 will be described.

  In the combination process (second combination process) in the second sub-mode, two discharge combinations d and e described later are obtained based on the second combination condition (No. 2). Specifically, from group C, that is, from all the weighing hoppers 4, a discharge combination d composed of an appropriate amount combination and discharging an object to be measured to the outer chutes 6 a and 6 b, and an object combination composed of an appropriate amount combination and the object The discharge combination e to be discharged is obtained alternately.

  In this case, in response to the discharge combination d and the discharge combination e being obtained alternately, the discharge of the objects to be weighed from the weighing hopper 4 selected for the discharge combination d to the outer chutes 6a and 6b, and the discharge combination The discharge of the objects to be weighed from the weighing hopper 4 selected to e to the inner chute 5 is performed alternately, and the discharge of the objects to be weighed from the collecting hoppers 8a and 8b and the weighing from the collecting hopper 7 are performed. The discharge of the object is performed alternately.

  Also in the case where the second sub-mode is set, as in the case of the first sub-mode, two input ports of the packaging machine are arranged below the combination weigher and discharged from the two collecting hoppers 8a and 8b. An object to be weighed may be put into one input port, and an object to be weighed discharged from the collecting hopper 7 may be put into the other input port.

  When the second sub mode is set, for example, only one input port of the packaging machine may be arranged below the combination weigher. In this case, the objects to be weighed discharged from the two collecting hoppers 8a and 8b and the objects to be weighed discharged from the collecting hopper 7 are sequentially put into the same input port, and each is produced as a bagged product. . In this case, a device such as a funnel for guiding the objects to be weighed discharged from the three collecting hoppers 7, 8a, and 8b to one input port of the packaging machine is required.

  Note that a predetermined weight range used when obtaining an appropriate combination of discharge combinations a, b, and c in the first operation mode, and a predetermined weight range used when obtaining an appropriate combination of discharge combinations d and e in the second operation mode. The weight range can be set in advance by operating the operation display 32 by the operator, and can be changed.

  According to the present embodiment, the first operation mode and the second operation mode can be selected according to the number of input ports of the packaging machine arranged below the combination weigher. Further, in the second operation mode, the first sub mode and the second sub mode can be selected. Therefore, even when the type of the packaging machine is changed, the present combination weigher can easily cope with the change without changing the combination weigher.

  For example, in a case where three input ports of the packaging machine are arranged below the combination weigher, the first operation mode may be selected to operate the combination weigher, and the input port of the packaging machine may be provided below the combination weigher. When two are arranged, the second operation mode may be selected to operate the combination weigher. In addition, when there is only one input port of the packaging machine, the second sub mode of the second operation mode can be selected to cope with the case.

  In the present embodiment, the collecting hoppers 7, 8a and 8b are provided at the respective outlets of the inner chute 5 and the outer chutes 6a and 6b. A configuration in which the above-mentioned collecting hopper is not provided is also possible as long as it does not hinder the operation.

  In the present embodiment, the plurality of weighing hoppers 4 and the supply hoppers 3 are arranged in a circular shape. However, the present invention is not limited to the circular shape. . The shapes of the inner chute 5 and the outer chutes 6a and 6b may be determined according to the arrangement of the plurality of weighing hoppers 4 in a row.

  Further, in the above-described embodiment, the weighing hopper 4 is exemplified as the combination hopper selected as the discharge combination, but the present invention is not limited to this. For example, when a memory hopper (not shown) corresponding to one or a plurality of weighing hoppers 4 is provided, the memory hopper forms a combination hopper.

  Here, the memory hopper is a hopper that holds the objects to be weighed discharged from the weighing hopper 4, and is detected by the weighing hopper 4 corresponding to the memory hopper and stored in the memory of the control device 31. Is used as the weight value of the object to be weighed held in the memory hopper.

  Further, in the above-described embodiment, the weighing hoppers 4 forming the combination hopper are arranged in a ring shape, but may be arranged in a shape forming a part of the ring shape. Alternatively, they may be arranged linearly. The disposition shape of the weighing hoppers 4 may be any shape as long as each weighing hopper 4 is capable of selectively discharging the objects to be weighed to a plurality of individually provided chutes.

  In addition, the shape of the chutes 5, 6a, 6b (for example, the shape of the upper opening) can also be changed according to the arrangement shape of the weighing hopper 4. For example, when the weighing hopper 4 is arranged in an elliptical shape, the shape of the upper opening of the chute may be, for example, elliptical. When the weighing hopper 4 is arranged in a polygonal shape, the shape of the upper opening of the chute may be, for example, a polygonal shape.

  Further, the weighing hoppers 4 are arranged in a row, but if the weighing hoppers 4 and the corresponding inner and outer chutes can be secured, a plurality of rows may be provided vertically and horizontally.

  Further, the positional relationship between the weighing hopper 4 and the chutes 5, 6a, 6b is not limited to the chutes provided below the weighing hopper 4, as described above. As long as there is no effect on the discharge of the objects to be weighed from the weighing hopper 4 to the chute, the two may be in any positional relationship. For example, they are physically connected via predetermined relay means such as a discharge path. Above, the weighing hopper 4 and the chute may be provided at the same height, or the weighing hopper 4 and the chute may be provided at positions spatially or planarly separated from each other.

  Further, the weighing hopper 4 may discharge the objects to be weighed not only in two directions but also in three or more different directions. In this case, chutes and collecting hoppers are provided at positions corresponding to the respective directions.

  From the above description, many modifications and other embodiments of the present invention are obvious to one skilled in the art. Accordingly, the above description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. Details of its structure and / or function may be substantially changed without departing from the spirit of the invention.

  INDUSTRIAL APPLICABILITY The present invention is useful as a combination weigher or the like that can cope with a change in the type of a packaging machine.

4 Weighing hopper 5 Inner chute 6a, 6b Outer chute 7, 8a, 8b Collecting hopper 31 Control device 32 Operation display

Claims (2)

A plurality of hoppers which are divided into two groups in advance, and each of which selectively discharges the supplied weighing object in the first direction and the second direction,
A first chute arranged corresponding to the hopper and configured to collect objects to be weighed discharged from the hopper in the first direction and discharge the weighed objects from a discharge port;
The weighing objects discharged in the second direction from each of the hoppers of the one side and the other side group, which are divided into one side group and the other side group, are collected and discharged. Two second shoots discharging from the
A first discharge combination comprising a combination of the hoppers selected from the hoppers in the one group and discharging the object to be weighed in the second direction based on a first combination condition; A second discharge combination consisting of a combination of the hoppers selected from among the hoppers of the group and discharging the object to be weighed in the second direction; A first operation mode for repeatedly performing a first combination process for obtaining a third discharge combination including the combination of the hoppers that is selected to discharge the object to be weighed in the first direction, and a second combination condition. A fourth discharge combination comprising a combination of the hoppers selected from the hoppers of the one side group and the other side group and discharging the object to be weighed in the second direction; A second combination process of repeatedly selecting a fifth discharge combination of the hoppers selected from among the hoppers in the side group and the other side group and discharging the object to be weighed in the first direction; Combination means for performing any one operation mode selected in advance from the first operation mode and the second operation mode,
When the first combination processing is performed by the combination means, the object to be weighed is discharged in the second direction to the hopper selected as the first discharge combination and the second discharge combination. A first discharge process for discharging the object to be weighed in the first direction to the hopper selected as the third discharge combination, and the second combination process is performed by the combination means; In this case, an object to be weighed is discharged in the second direction to the hopper selected as the fourth discharge combination, and the hopper selected as the fifth discharge combination is discharged to the hopper selected as the fifth discharge combination. Discharge control means for performing a second discharge process for discharging the object to be weighed in one direction;
Mode selection means for selecting any one of the first operation mode and the second operation mode,
The combination means is configured to perform the operation mode selected by the mode selection means,
The second operation mode includes a first sub mode and a second sub mode,
When the first sub-mode of the second operation mode is selected by the mode selection means, the combination means is configured to repeatedly and simultaneously obtain the fourth discharge combination and the fifth discharge combination. It is configured to repeatedly perform the second combination process,
When the second sub-mode of the second operation mode is selected by the mode selection means, the combination means repeatedly obtains the fourth discharge combination and the fifth discharge combination alternately. It is configured to repeatedly perform the second combination process,
Combination scale. A first collecting hopper provided at a discharge port of the first chute and temporarily holding and discharging the object to be weighed discharged from the discharge port;
Two second collecting hoppers provided at respective outlets of the two second chutes for temporarily holding and discharging the objects to be weighed discharged from the outlets;
The combination weigher according to claim 1, further comprising:

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