Combination measurement device

Abstract

To discharge a measurement target object from a measurement conveyor without fail without leaving holding residuals.SOLUTION: In a combination measurement device in which a plurality of measurement conveyors 2 are arranged in line and a measurement target object of a measurement conveyor 2 selected by combination operation is conveyed to a collection device 1, a scraper 30 adjacent to or in contact with the outer peripheral surface of a belt is arranged in a lower part of the end terminal part of a conveyor belt 14 of the measurement conveyor 2 and the conveyor belt 14 is reversely controlled after the conveyance operation by normal rotation is done.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a combination weighing device configured to perform combination weighing using a plurality of weighing conveyors composed of belt conveyors.

Background Art

[0002] When directly transporting a material to be weighed in a combination weighing device, a straight feeder that places the material to be weighed and vibrates it for conveyance is often used. However, when processing a material to be weighed that easily adheres, such as a sticky cooking juice or food entangled with sauce, smooth conveyance becomes difficult with a straight feeder. Therefore, for example, as shown in Patent Document 1, conveyance of the material to be weighed using a belt conveyor may be performed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When placing and transporting a material to be weighed that easily adheres on a belt conveyor, in order to surely discharge the material to be weighed from the end of the conveyance, a scraper that approaches or is in sliding contact with the belt conveyance surface is provided below the end of the belt conveyor, and it is generally performed to scrape off the material to be weighed that adheres to the belt conveyance surface and is about to be carried around with the scraper.

[0005] However, for example, when processing a material to be weighed that is boiled, seasoned with mirin, etc., is long, flexible, and sticky, such as bean sprouts with namul, the material to be weighed may be pinched and remain between the scraper and the belt conveyance surface, and the discharge amount may decrease by the amount of the pinched residue.

[0006] The present invention has been made paying attention to such points, and an object thereof is to reliably discharge the object to be measured from the weighing conveyor without pinching residue and to enable highly accurate combination weighing.

Means for Solving the Problems

[0007] In order to achieve the above object, the present invention is configured as follows.

[0008] (1) The present invention is a combination weighing device configured to arrange a plurality of weighing conveyors in parallel and carry out the object to be measured on the weighing conveyor selected by combination calculation to a collecting device, A scraper that is close to or in sliding contact with the outer peripheral surface of the belt is provided below the end portion of the conveyor belt constituting the weighing conveyor, and the conveyor belt is configured to be reversely controlled after the discharging operation in the forward rotation.

[0009] According to this configuration, even when the object to be measured adheres to the conveyor belt and is carried around and pinched between the belt conveying surface and the scraper during the discharging operation of the object to be measured, the pinching is released by the reverse rotation of the conveyor belt and the object falls and is discharged, and there is no residue on the weighing conveyor.

[0010] Therefore, all the objects to be measured on the weighing conveyor selected based on the combination calculation are discharged, and highly accurate combination weighing can be performed.

[0011] (2) In a preferred embodiment of the present invention, The surface of the scraper is an embossed surface.

[0012] According to this configuration, it is possible to prevent the object to be measured scraped by the scraper from adhering and remaining on the surface of the scraper, and to perform even more accurate combination weighing.

[0013] (3) In another embodiment of the present invention, The scraper is attached to the conveyor frame of the weighing conveyor that is detachably supported by the load measuring unit.

[0014] According to this configuration, when removing the weighing conveyor from the load measuring unit for cleaning or the like, the weighing conveyor can be removed from the load measuring unit while maintaining the positional relationship between the conveyor belt of the weighing conveyor and the scraper. Next, when attaching the weighing conveyor to the load measuring unit, adjustment of the scraper with respect to the weighing conveyor becomes unnecessary.

[0015] (4) In other embodiments of the present invention, A plurality of the weighing conveyors are arranged in parallel in a horizontal row, and the collecting device is constituted by a collecting conveyor arranged along the conveyor parallel direction below the terminal end of the weighing conveyor group.

[0016] According to this configuration, a semi-automatic combination weighing device in which the objects to be weighed are manually distributed and supplied to the weighing conveyors arranged in parallel can be implemented as a device with high combination weighing accuracy.

[0017] (5) In other embodiments of the present invention, A conveying guide for preventing the objects to be weighed placed and conveyed from deviating outward is erected beside the collecting conveyor, and the scraper is temporarily arranged on the conveying path side of the conveying guide.

[0018] According to this configuration, the objects to be weighed that are released from being pinched and discharged by reverse control of the weighing conveyor can be reliably sent into the collecting conveyor and accurately merged with other objects to be weighed discharged from the weighing conveyor.

Effect of the Invention

[0019] As described above, according to the present invention, a combination weighing device capable of reliably discharging the objects to be weighed from the weighing conveyor without pinching residue can be obtained. Further, according to the present invention, since the objects to be weighed are not pinched for a long time, it is hygienic.

Brief Description of the Drawings

[0020]

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Mode for Carrying Out the Invention

[0021] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0022] This combination weighing device is semi - automatic in configuration, where an operator manually supplies the object to be weighed, and automatic combination weighing of a predetermined weight and discharging of the weighed object to be weighed are performed. As shown in FIG. 1, it includes an aggregation conveyor 1 as an aggregation device composed of a belt conveyor for placing the object to be weighed and conveying it in a certain direction A, and on both sides of this aggregation conveyor 1, a plurality of (7 on one side, 14 in total) belt conveyors arranged in parallel in a horizontal row along the conveying direction A, which is a weighing conveyor 2, a touch panel - type operation setting display 3 for setting operation control parameters such as the predetermined weight range of the object to be weighed and the predetermined number of objects to be weighed for bagging, and a base 4 for supporting these components.

[0023] During operation, one or more operators standing in front of the two rows of weighing conveyors 2 manually supply the object to be weighed little by little to each weighing conveyor 2. The objects to be weighed on the plurality of weighing conveyors 2 that are selected to reach the predetermined weight through combination calculation are sent into the aggregation conveyor 1, and the object to be weighed of the predetermined weight is discharged from the end of the aggregation conveyor 1 and sent into the next - stage device such as a bagging device.

[0024] The weighing conveyor 2 is detachably supported by a load - measuring unit 5 installed in parallel on the upper part of the base 4. The weight of the entire weighing conveyor with the object to be weighed placed on it is detected by a load sensor such as a load cell incorporated in the load - measuring unit 5. The weight of the object to be weighed is measured by subtracting the weight of the weighing conveyor 2 from the detected weight as the tare weight.

[0025] In the following description, for the sake of easy understanding of the structure, the parallel direction of the weighing conveyor 2 (the longitudinal direction of the aggregation conveyor 1) is referred to as the left - right direction or the horizontal direction, and the longitudinal direction of the weighing conveyor 2 is referred to as the front - back direction.

[0026] Below the outer lower part of the two rows of weighing conveyors, a control panel 6 that houses a power supply unit, a control unit, etc. is arranged and supported by a base 4, and the lower part of the collective conveyor 1 is largely open. On the upper part of the control panel 6, left - and right - long protective covers 7 that cover the upper part of the control panel 6 from above and outside are arranged to prevent operators from contacting the starting end or the driving part of the weighing conveyor 2.

[0027] On the upper surface of the protective cover 7, there are a group of warning lamps 8 that light up when troubles for each weighing conveyor 2 are detected or when it is detected that a weighed object with an inappropriate weight for combined weighing is supplied, and an emergency stop button 9 for stopping the operation is equipped.

[0028] Figure 2 is a perspective view of the weighing conveyor 2, and Figure 3 is a side view thereof.

[0029] As shown in Figure 3, the weighing conveyor 2 is configured by winding a wide conveyor belt 14 around a driving roller 12 pivotally supported on the conveying start - end side of a conveyor frame 11 and a tension roller 13 pivotally supported on the conveying end - side of the conveyor frame 11 and tensioning it. A driven gear 15 connected to one end of the driving roller 12 is meshed with a driving gear 16 provided in the load measuring unit 5 from above. The driving gear 16 is decelerated and interlocked with a motor (not shown) installed inside the load measuring unit 5, and the driving gear 16 is arranged to be exposed upward at the upper part of the load measuring unit 5.

[0030] The conveyor frame 11 is formed by bending and pressing a metal plate. The driving roller 12 is horizontally pivotally supported in a freely rotatable manner on the start - end side thereof, and the tension roller 13 is pivotally supported on a bearing bracket 17 of a separate member connected to the end - side in a state of being slidably elastically biased outward by a tension mechanism 18 incorporating a spring and being freely rotatable. Also, as shown in Figure 2, a planar U - shaped supply guide 19 for preventing the weighed object from deviating is detachably locked and attached to the conveyor frame 11.

[0031] Although the detailed structure is not shown, the drive roller 12 and the tension roller 13 are rotatably supported via bearings on a support shaft inserted along the axis. Both ends of the support shaft of the drive roller 12 are fixed to the side plate portion of the conveyor frame 11, and both ends of the support shaft of the tension roller 13 are inserted and supported by the bearing bracket 17 so as not to rotate and be slidable back and forth.

[0032] On the starting end side of the side plate portion of the conveyor frame 11, a gear housing portion 11a that houses the driven gear 15 of the drive roller 12 and covers it from the outside and above is formed to protrude. Also, in order to engage the lower end portion of the driven gear 15 with the exposed upper end portion of the drive gear 16, the lower part of the gear housing portion 11a is open.

[0033] On the lower part of the outer surface of the side plate portion of the conveyor frame 11, a pair of front and rear connecting pins 22 with heads are provided for attaching and detaching to the load measuring portion 5. These connecting pins 22 are engaged and disengaged from above with connecting fittings 23 erected and attached to the left and right outer side surfaces of the load measuring portion 5. While inserting the conveyor frame 11 between the left and right connecting fittings 23 and press-fitting the connecting pins 22 into the locking grooves 24 of the connecting fittings 23, the weighing conveyor 2 can be positioned and assembled and fixed in the front, rear, left, and right directions with respect to the load measuring portion 5.

[0034] Also, with this assembly, the driven gear 15 of the drive roller 12 is automatically engaged with the drive gear 16, and the weighing conveyor 2 can be drive-controlled.

[0035] Note that by pulling out the conveyor frame 11 upward from the connecting fitting 23, the weighing conveyor 2 can be separated from the weight measuring portion 5, and the interlock with the drive gear 16 is automatically released.

[0036] Also, a pair of front and rear connecting pins 25 with heads are provided on the upper part of the outer surface of the left and right side plate portions of the conveyor frame 11, and the supply guide 19 is detachably locked and connected to these connecting pins 25 with heads.

[0037] In the weighing conveyor 2 configured as described above, when processing an elongated, flexible, and easily adherent object to be weighed, there is a risk that the object to be weighed being carried out adheres to the conveyor belt 14 and is carried around below the end of the conveyance. To prevent this, the following structure is provided.

[0038] That is, below the end of the conveyor frame 11 in the weighing conveyor 2, a scraper 30 for scraping off the object to be weighed adhering to the conveyor belt 14 is provided.

[0039] FIG. 4 is a partially cut-away side view of the end of the weighing conveyor, FIG. 5 is a perspective view of the scraper 30, and FIG. 6 is an exploded perspective view of the scraper 30.

[0040] As shown in FIGS. 4 to 6, conveyance guides 32 for preventing the object to be weighed on the collecting conveyor 1 from deviating are attached to the conveyor frames 31 provided on both sides of the collecting conveyor 1. The scraper 30 is arranged so as to be positioned on the conveyance path side of the conveyance guide 32, and the object to be weighed scraped off by the scraper 30 is guided onto the collecting conveyor 1.

[0041] The scraper 30 is formed of a hard resin material with high water repellency in a horizontally long strip shape extending across the entire width of the conveyor belt 14, and is attached to the front surface of a mounting fitting 33 connected to the bearing bracket 17 via a pressing plate 34.

[0042] A support fitting 35 is bolt-connected to the bearing bracket 17 of the conveyor frame 11 in the weighing conveyor 2, and both ends of the mounting fitting 33 formed in a "cassette-like" shape in plan view are connected to the support fitting 35 so that the position and posture can be adjusted. The scraper 30 is applied and supported on the front surface of the horizontal bar portion provided on the mounting fitting 33, and is held and fixed by the pressing plate 34.

[0043] At three locations in the longitudinal direction of the pressing plate 34, support bolts 36 project rearward. These support bolts 36 are inserted into connection holes 37 formed at three locations in the longitudinal direction of the scraper 30 and connection holes 38 formed in the lateral bar portion of the mounting bracket 33. At the back of the mounting bracket 33, nuts 39 are tightened and attached to the inserted ends of the support bolts 36, so that the scraper 30 is fixed in a predetermined inclined posture covering the conveying path of the collecting conveyor 1.

[0044] The upper end edge of the scraper 30 is formed sharply over the entire width so as to scrape off the object to be measured adhering to the conveyor belt 14, and the outer surface serving as the scraping guide surface is formed as an embossed surface as described later, so that the scraped object to be measured smoothly drops and is guided without adhering to the outer surface of the scraper 30.

[0045] In the weighing conveyor 2 equipped with the scraper 30 as described above, when processing an object to be measured that is particularly long and likely to adhere, such as seasoned bean sprouts used for namul, as shown by the phantom line in FIG. 3, there is a risk that the object to be measured w scraped by the scraper 30 will be pinched and remain between the scraper 30 and the conveyor belt 14.

[0046] When such pinching and remaining of the object to be measured occurs, the weight of the object to be measured collected by the collecting conveyor 1 decreases by the amount of the pinched and remaining weight.

[0047] Also, in the weighing conveyor 2 where pinching and remaining has occurred, thereafter, the weight of the remaining object to be measured is added to the weight of the object to be measured on the conveyor and measured, resulting in a state where the weight of the object to be measured carried out is less than the measured weight.

[0048] In addition, the pinched and remaining object to be measured may unexpectedly fall off. In this case, the weight of the object to be measured collected by the collecting conveyor 1 will increase beyond the target weight value.

[0049] In the combination weighing device of this embodiment, in order to prevent a decrease in weighing accuracy due to the clamping and remaining of the object to be weighed between the scraper 30 and the conveyor belt 14 of the weighing conveyor 2, the conveyor belt 14 of the weighing conveyor 2 is reversely controlled.

[0050] Hereinafter, the control of the combination weighing device including the reverse control of the conveyor belt 14 of the weighing conveyor 2 will be described.

[0051] FIG. 7 is a block diagram showing the control configuration of the combination weighing device of this embodiment. Parts corresponding to those in FIG. 1 and the like above are given the same reference numerals.

[0052] This combination weighing device includes first and second conveyor drive circuit parts 45 and 46 that drive each weighing conveyor 2 and the aggregate conveyor 1 respectively, a lamp drive circuit part 47 that drives each notification lamp 8, an A / D conversion part 48 that converts the digital load signal from the load measurement part 5 into an analog load signal, a control part 49 that controls each part, and an I / O circuit part 50 for exchanging discharge signals with the next-stage bagging device. The control part 49 has an arithmetic control part 51 composed of a CPU or the like and a storage part 52 composed of memories such as a RAM and a ROM.

[0053] FIG. 8 is a flowchart showing the overall control operation.

[0054] First, when the power switch is turned on and a setting operation is performed (step S1), the device shifts to the setting mode and settings such as operation parameters are made (step S2).

[0055] When the operation switch is turned on (step S3), the setting contents corresponding to the product number corresponding to the object to be weighed are set as operation parameters (step S4), and the operation is started.

[0056] When an operator places the object to be weighed on the weighing conveyor 2 (step S5), the object to be weighed is weighed and the combination calculation is started (step S6).

[0057] In the case of a combination operation where there is a combination of the weighing conveyors 2 within a predetermined weight range (step S7), in response to the input of a discharge command signal (step S8), the driving of the weighing conveyor 2 is controlled as described later, and further, the driving of the aggregate conveyor 1 is controlled to discharge the object to be weighed within the predetermined weight range (step S9). When the operation switch is turned off, the process returns to step S1 (step S10).

[0058] In this embodiment, a reverse mode for reversely controlling the conveyor belt 14 of the weighing conveyor 2 is provided, and by this reverse mode, the pinching and remaining of the object to be weighed by the scraper 30 are eliminated.

[0059] This reverse mode for reversely driving the weighing conveyor 2 can be set, for example, by operating the operation setting display 3. Various forms are conceivable for this reverse mode.

[0060] That is, as the reverse mode, for example, every time an object to be weighed within a predetermined weight range is carried out from a plurality of weighing conveyors 2 to the aggregate conveyor 1, that is, every time the conveyor belt 14 of the weighing conveyor 2 is driven forward to carry the object to be weighed to the aggregate conveyor 1, the conveyor belt 14 of the plurality of weighing conveyors 2 is reversely driven every time, reverse mode for each time, zero point shift amount of the weighing conveyor 2, that is, the amount of change (shift) of the zero point weight, which is the weight measured by the weighing conveyor 2 when no object to be weighed is supplied, when it exceeds a predetermined value, the zero point shift reverse mode for reversely driving the weighing conveyor 2, every time the number of times of carrying out an object to be weighed within a predetermined weight range from a plurality of weighing conveyors 2 to the aggregate conveyor 1 reaches a certain number of times, all the weighing conveyors 2 are reversely driven every certain number of times reverse mode, or when an external signal is input by the operation of an operator, only the corresponding weighing conveyor 2 or all the weighing conveyors 2 are reversely driven reverse mode by an external signal, etc.

[0061] In this embodiment, any one of the above reverse mode for each time, zero point shift reverse mode, reverse mode for every certain number of times, and reverse mode by an external signal can be selected and set.

[0062] The setting of this reverse mode may be linked to the setting of the product number corresponding to the object to be measured. By setting the product number corresponding to the object to be measured, the reverse mode corresponding to the object to be measured corresponding to the product number may be automatically set.

[0063] In addition, the reverse mode is not limited to the above four types. For example, every time a certain period of time elapses after starting the operation, the conveyor belt 14 of the weighing conveyor 2 may be reversed in other reverse modes.

[0064] As this reverse mode, at least one type of reverse mode, for example, a zero-point shift reverse mode, may be executable.

[0065] Note that the reverse driving time of the weighing conveyor 2 only needs to be able to release the object to be measured sandwiched between the scraper 30 and the conveyor belt 14 of the weighing conveyor 2, so a short time is sufficient, and it may be shorter than the forward driving time of the conveyor belt 14 of the weighing conveyor 2 for carrying the object to be measured to the collecting conveyor 1.

[0066] FIG. 9 is a flowchart of the drive control of the weighing conveyor according to the present embodiment.

[0067] First, the operation parameters of the product type set according to the object to be measured are read (step S11), the forward driving time for forward driving the conveyor belt 14 of the weighing conveyor 2 is set (step S12), and in the forward driving of the conveyor belt 14 of the weighing conveyor 2 for carrying the object to be measured to the collecting conveyor 1, it is forward-driven for the set forward driving time (step S13), and then it proceeds to step S14.

[0068] In step S14, it is determined whether or not the above reverse mode is set in the operation parameters. When the reverse mode is set, it is determined whether or not the reverse mode is the above zero point shift reverse mode (step S16). When it is the zero point shift reverse mode, it is determined whether or not there is a zero point shift in which the zero point of the selected weighing conveyor 2 in the combination fluctuates beyond a predetermined value (step S17).

[0069] In step S17, when there is a weighing conveyor with a zero point shift in which the zero point fluctuates beyond the predetermined value, the reverse drive time for reversely driving the weighing conveyor 2 is set (step S18), and the weighing conveyor 2 with the zero point shift is reversely driven over the drive time (step S19).

[0070] When it is not the zero point shift reverse mode in step S16, it is determined whether or not it is the above reverse mode every time (step S20). When it is the reverse mode every time, the reverse drive time of the conveyor belt 14 of the weighing conveyor 2 is set and the process proceeds to step S22 (step S21), and the conveyor belt 14 of the weighing conveyor 2 is reversely driven over the set reverse drive time. As a result, after the conveyor belt 14 of the weighing conveyor 2 is driven forward to carry out the object to be weighed to the collecting conveyor 1, the conveyor belt 14 of the weighing conveyor 2 is reversely driven.

[0071] When it is not the reverse mode every time in step S20, it is determined whether or not it is the reverse mode every fixed number of times (step S23). When it is the reverse mode every fixed number of rotations, the counter for measuring the number of times the object to be weighed is carried out to the collecting conveyor 1 is incremented (step S24), and it is determined whether or not the count value of the counter has reached a predetermined number of times which is a fixed number of times (step S25).

[0072] When the counter reaches a predetermined number of times in step S25, reset the counter (step S26), set the reverse drive time of the conveyor belt 14 of the weighing conveyor 2 (step S27), and reverse drive the conveyor belt 14 of the weighing conveyor 2 for which the number of times the weighed object has been carried out to the collecting conveyor 1 has reached the predetermined number of times for the set reverse drive time (step S28).

[0073] When it is not in the reverse mode for each constant rotation speed in step S23 and is in the reverse mode by an external signal, if there is an input of an external signal (step S29), determine whether it is an input of a reverse command signal by the operator's operation (step S30). When there is an input of a reverse command signal, set the reverse drive time of the conveyor belt 14 of the weighing conveyor 2 (step S31), and reverse drive the conveyor belt 14 of the weighing conveyor 2 for which there has been an input of a reverse command signal for the set reverse drive time (step S32).

[0074] As described above, in this embodiment, since the conveyor belt 14 of the weighing conveyor 2 is reversely driven, even if the weighed object scraped by the scraper 30 is sandwiched between the scraper 30 and the conveyor belt surface of the conveyor belt 14 of the weighing conveyor 2, the sandwiched weighed object is released and dropped by the reverse drive, and the residue is eliminated.

[0075] In the above, the case where an elongated and flexible weighed object such as bean sprouts for namul is sandwiched between the scraper 30 and the belt conveying surface of the conveyor belt 14 of the weighing conveyor 2 and remains has been described. However, for example, in the case of a weighed object such as shredded flavored shiitake mushrooms, the weighed object may adhere and remain on the outer surface that serves as the scraping guide surface for scraping off the weighed object of the scraper 30.

[0076] Therefore, in this embodiment, as described above, the outer surface of the scraper 30 that serves as the scraping guide surface is formed as an embossed surface, reducing the contact area with the weighed object, so that the scraped weighed object can smoothly fall and be guided without adhering to the outer surface of the scraper 30.

[0077] As for the embossing process, as shown in FIG. 10, in addition to the "checkerboard pattern" in which the mountain-shaped ridge groups intersect obliquely at a small pitch, as shown in FIG. 11, the "vertical plain pattern" in which the vertical mountain-shaped ridge groups are arranged in parallel left and right at a small pitch, or as shown in FIG. 12, the "horizontal plain pattern" in which the horizontal mountain-shaped ridge groups are arranged in parallel up and down at a small pitch may be arbitrarily selected and used according to the shape of the object to be measured, the adhesion condition, etc.

[0078] 〔Other embodiments〕 The present invention can also be implemented in the following forms.

[0079] (1) It may be configured to detect the occurrence of pinching of the object to be measured between the scraper 30 and the conveyor belt 14 by an optical sensor, imaging, etc., and perform reverse rotation control of the conveyor belt 14 only when pinching occurs.

[0080] (2) A scraper may also be provided below the end of the collective conveyor 1, and the same forward and reverse rotation control as above may be performed to prevent adhesion residue and pinching residue at the end of the collective conveyor 1.

[0081] (3) In the above embodiment, the case where the present invention is applied to a semi-automatic combination weighing device in which the object to be measured is manually distributed and supplied to the weighing conveyor group is illustrated, but it can also be applied to a fully automatic combination weighing device that automatically distributes and supplies the object to be measured to the weighing conveyor group.

[0082] (4) It can also be implemented in a form in which a plurality of weighing conveyors are arranged radially, and a collecting chute is provided as a collecting device for collecting the object to be measured conveyed by the weighing conveyor on the center side.

Explanation of reference numerals

[0083] 1 Collective conveyor (collecting device) 2 Weighing conveyor 5 Load measuring unit 14 Conveyor belt 30 Scraper 32 Conveying guide

Claims

1. A combination weighing device configured to arrange a plurality of weighing conveyors in parallel and carry out the weighed objects of the weighing conveyors selected by combined calculation to a collecting device, wherein a scraper that is close to or in sliding contact with the outer peripheral surface of the belt is provided below the end portion of the conveyor belt constituting the weighing conveyor, and the conveyor belt is configured to be reversely controlled after the unloading operation in the forward rotation, characterized in that.

2. The surface of the scraper is an embossed surface, The combination weighing device according to claim 1.

3. The scraper is attached to the conveyor frame of the weighing conveyor that is detachably supported by a load measuring unit, The combination weighing device according to claim 3.

4. A plurality of the weighing conveyors are arranged in parallel in a horizontal row, and the collecting device is constituted by a collecting conveyor arranged along the conveyor parallel direction below the end portion of the weighing conveyor group, The combination weighing device according to any one of claims 1 to 3.

5. A conveying guide for preventing the deviation of the weighed objects being placed and conveyed to the outside is erected beside the collecting conveyor, and the scraper is provided in a temporary manner on the conveying path side of the guide, The combination weighing device according to claim 4.

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