JP5289240B2 - Combination scale feeder - Google Patents

Description

  The present invention relates to a supply device for a combination weigher that supplies an object to be weighed to a combination weigher.

  2. Description of the Related Art Conventionally, there is a combination weigher supply device for supplying an object to be weighed to a combination weigher, for example, shown in FIG.

  FIG. 3A is a diagram showing a schematic configuration of a conventional combination weigher supply device and a combination weigher as viewed from the side, and FIG. 3B is a schematic view of the same combination weigh supply device as viewed from above. It is a figure which shows a structure.

  The combination weigher includes a conical dispersion feeder 11, a plurality of rectilinear feeders 12 disposed radially around the dispersion feeder 11, a supply hopper 13 and a weighing hopper 14 disposed below each rectilinear feeder 12. In addition, a weight sensor 15 such as a load cell attached to each weighing hopper 14, a collective chute 16, and a collective funnel 17 are provided.

  Here, the conventional supply device for a combination weigher is for supplying the objects to be weighed supplied from the transport feeder 1a to the dispersion feeder 11 of the combination weigher, and has a supply funnel having an upper opening 2a and a lower opening 2b. 2 and a bowl-shaped supply chute 5. Such a supply funnel 2 and a supply chute 5 are provided in order to prevent damage to the objects to be weighed supplied to the dispersion feeder 11 when the height positions of the transport feeder 1a and the dispersion feeder 11 are greatly different. Yes.

  On the other hand, Patent Documents 1 and 2 include a layer thickness adjusting member in which a flexible member such as urethane rubber is attached to the lower part of a ring-shaped frame body in order to supply a predetermined amount of objects to be weighed to each weighing hopper. A configuration is disclosed in which a flexible member is disposed on a dispersion feeder or a rectilinear feeder so that the layer thickness of an object to be weighed on each rectilinear feeder becomes uniform.

Japanese Utility Model Publication No. 5-75627 Japanese Patent Laid-Open No. 11-326023

  In the conventional combination weigher supply apparatus shown in FIG. 3, the supply chute 5 is arranged so that the lower opening 2b of the supply funnel 2 is located on the center line L1. Therefore, the object to be weighed discharged from the supply chute 5 falls as shown by an arrow e and tends to be shifted to the opposite side of the supply chute 5 on the dispersion feeder 11. As described above, if the objects to be weighed are not supplied in a uniform state onto the dispersion feeder 11, the amounts of the objects to be weighed supplied to the respective weighing hoppers 14 are greatly different, and the combination weighing accuracy is lowered. In addition, since the objects to be weighed discharged from the supply chute 5 slide down linearly on the supply funnel 2, the speed of the objects to be weighed discharged from the lower opening 2 b is high, and the objects to be weighed are dispersed feeder 11 and The impact when colliding with an object to be weighed on the dispersion feeder 11 supplied earlier is also relatively large. Therefore, in the case of an object to be weighed that is fragile like a snack such as potato chips, the object to be weighed easily breaks.

  On the other hand, when a layer thickness adjusting member to which urethane rubber or the like is attached as in Patent Documents 1 and 2, the amount of objects to be weighed to each weighing hopper can be set to an appropriate amount. May be damaged and mixed with the object to be weighed as a foreign object. Such a foreign object is difficult to detect even with an X-ray foreign object detector, for example. If the object to be weighed is food such as confectionery, attach urethane rubber or the like. A layer thickness adjusting member cannot be used.

  The present invention has been made in order to solve the above-described problems, and it is possible to uniformly supply an object to be weighed onto a dispersion feeder without using a layer thickness adjusting member to which urethane rubber or the like is attached. Another object of the present invention is to provide a combination weigher supply device that can prevent damage to an object to be weighed.

  In order to achieve the above-described object, a supply device for a combination weigher according to the present invention delivers a conical distributed feeder and a workpiece to be supplied from the distributed feeder that is provided radially around the distributed feeder to a hopper. A supply device for a combination weigher that supplies an object to be measured to a combination weigher having a plurality of linear feeders, and is disposed above the dispersion feeder and discharges the object to be weighed received from the upper opening from the lower opening. And the other end to slide the object to be weighed supplied to one end in the longitudinal direction onto the supply funnel so that the object to be weighed is slid down and discharged onto the supply funnel. A bowl-like chute disposed with an inclination that is higher than the end, and the object to be weighed discharged from the chute is slid down while drawing a spiral on the supply funnel In the chute as the discharging direction of the objects to be weighed which have been discharged from the chute is a direction out of the lower opening of the supply funnel are arranged in a plan view.

  According to this configuration, the object to be weighed discharged from the chute slides down on the supply funnel so as to draw a spiral, and is supplied to the dispersion feeder. Therefore, the speed at which the weighing object slides down is slow on the supply funnel, and the impact when the weighing object collides with the weighing object on the dispersion feeder or the previously supplied dispersion feeder is reduced, causing damage to the weighing object. Can be prevented. In addition, since the object to be weighed slides down on the supply funnel in a spiral manner and is supplied to the dispersion feeder, the object to be weighed can be supplied uniformly to the dispersion feeder without any deviation.

  Further, when the fall position of the object to be weighed discharged from the chute to the supply funnel can be changed within the range from the peripheral edge of the lower opening of the supply funnel to the peripheral edge of the upper opening, and when changed Alternatively, the chute may be configured such that its position can be changed so that the discharge direction of the object to be weighed discharged from the chute in a plan view is a direction away from the lower opening of the supply funnel.

  According to this configuration, for example, when the type of the object to be weighed is changed, the position of the chute is such that the falling position of the object to be weighed discharged from the chute to the supply funnel becomes a position suitable for the object to be weighed. It is easy to change.

  In this case, the chute may be configured to change its position by rotating around an axis located on the one end side thereof.

  Further, when the fall position of the object to be weighed discharged from the chute to the supply funnel can be changed within the range from the peripheral edge of the lower opening of the supply funnel to the peripheral edge of the upper opening, and when changed A chute position changing means for changing the position of the chute so that the discharge direction of the object to be discharged from the chute in a plan view is a direction deviating from the lower opening of the supply funnel, and a plurality of objects to be weighed An input means for inputting one type from among the above-mentioned types, a position of the chute determined in advance according to each of a plurality of types of objects to be weighed, and an object to be weighed input from the input means Control means for controlling the chute position changing means so as to obtain the chute position according to the type may be further provided.

  According to this configuration, for example, when the type of the object to be weighed is changed, the position of the object to be weighed discharged from the chute to the supply funnel can be changed by simply inputting the type of the object to be weighed by the input means. The position of the chute can be changed to be a position suitable for the object to be weighed.

  In this case, the chute position changing means may be configured to change the position of the chute by rotating the chute around an axis located on the one end side thereof.

  The present invention has a configuration as described above, and in the combination weigher supply device for supplying an object to be weighed to the combination weigher, it is shifted to the dispersion feeder without using a layer thickness adjusting member to which urethane rubber or the like is attached. It is possible to supply the objects to be weighed uniformly and to prevent the objects to be weighed from being damaged.

(A) is a figure which shows schematic structure which looked at the supply apparatus for combination scales and the combination scale of the 1st Embodiment of this invention from the side, (b) is the supply apparatus for combination scales from the upper direction. It is a figure which shows the general | schematic structure seen. (A) is a figure which shows schematic structure which looked at the supply apparatus for combination scales and the combination scale of the 2nd Embodiment of this invention from the side, (b) is the supply apparatus for combination scales from upper direction. It is a figure which shows the general | schematic structure seen. (A) is a figure which shows the schematic structure which looked at the supply apparatus for conventional combination scales and the combination scale from the side, (b) is the figure which shows the schematic structure which looked at the supply apparatus for combination scales from the upper direction It is.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
Fig.1 (a) is a figure which shows schematic structure which looked at the supply apparatus for combination scales and the combination scale of the 1st Embodiment of this invention from the side, FIG.1 (b) is supply for the same combination scales It is a figure which shows schematic structure which looked at the apparatus from upper direction.

  The supply device for a combination weigher of the present embodiment includes a supply funnel 2 and a supply chute device 3 for supplying an object to be weighed supplied from a transport feeder 1a including a vibration feeder to a combination weigher.

  The combination weigher shown in FIG. 1A is an example of a combination weigher that can use the combination weigh supply device of this embodiment. In this combination weigher, a conical dispersion feeder 11 is provided in the center of the upper part of the apparatus to disperse the objects to be weighed supplied from the supply funnel 2 radially by vibration. The dispersion feeder 11 sends the object to be weighed supplied from the supply funnel 2 to the central portion thereof toward the peripheral portion by vibration. Around the dispersion feeder 11, a plurality of linear feeders 12 for radially feeding the objects to be weighed sent from the dispersion feeder 11 to the respective supply hoppers 13 by vibration are provided radially. Under each linear feeder 12, a supply hopper 13 and a weighing hopper 14 are provided correspondingly and arranged in a circular shape. The supply hopper 13 receives the object to be weighed sent from the linear feeder 12 and opens the discharge gate when the weighing hopper 14 arranged below it becomes empty, and puts the object to be weighed into the weighing hopper 14. Each weighing hopper 14 is provided with a weight sensor 15 such as a load cell, and the weight sensor 15 measures the weight of an object to be weighed in the weighing hopper 14. The measurement value of each weight sensor 15 is output to the control device 18. A collecting chute 16 having a substantially inverted truncated cone shape is disposed below the weighing hoppers 14 arranged in a circle, and a collecting funnel 17 is provided below the collecting chute 16. The weighing hopper 14 selected as a later-described discharge combination by the control device 18 opens its discharge gate and discharges the object to be weighed. The discharged object weighs slides down on the collecting chute 16 and passes through the collecting funnel 17. Discharged to packaging machines.

  Further, the combination weigher is provided with a control device 18 and an operation indicator 19. The control device 18 is configured by, for example, a microcomputer, and includes an arithmetic control unit including a CPU and the like, and a memory such as a RAM and a ROM. In the memory, an operation program is stored in advance, and a number of operation condition setting data, other measurement value data, and the like are stored. The control device 18 controls the overall operation of the combination weigher and performs combination processing and the like by the operation control unit (CPU) executing an operation program stored in the memory. That is, the control device 18 controls the vibration devices of the dispersion feeder 11 and the linear feeders 12, and controls the opening and closing of the discharge gates of the supply hopper 13 and the weighing hopper 14. Further, in the combination processing, combination calculation is performed based on the weight values of the objects to be weighed measured by the respective weight sensors 15, and the sum of the weight values of the objects to be weighed supplied from the plurality of weighing hoppers 14 is calculated. However, one combination of the weighing hoppers 14 that falls within a predetermined weight range (allowable range with respect to the target combination weight) is obtained, and that combination is set as a discharge combination. When there are a plurality of combinations that fall within the predetermined weight range, one combination of the weighing hoppers 14 having the smallest absolute value of the difference between the total weight value of the objects to be weighed and the target combination weight is obtained, and the combination is discharged. Decide on.

  The operation indicator 19 includes a touch screen type display screen, for example, and has a function as input means for operating the combination weigher and setting operation parameters thereof.

  The supply device for a combination weigher according to this embodiment is provided when there is a large difference in height between the transport feeder 1a that transports an object to be weighed to the combination weigher and the dispersion feeder 11 of the combination weigher, and is disposed above the dispersion feeder 11. A funnel-shaped supply funnel 2 and a supply chute device 3 for supplying an object to be measured to the supply funnel 2. The supply funnel 2 has an upper opening 2a and a lower opening 2b that are concentric in a plan view, and the upper opening 2a has an inverted truncated cone shape that is larger than the lower opening 2b. The supply funnel 2 is arranged so that the center thereof coincides with the center of the dispersion feeder 11 in plan view. That is, the center of the lower opening 2 b of the supply funnel 2 coincides with the center of the dispersion feeder 11.

  The supply chute device 3 includes a supply chute 31 having a U-shaped cross section, and has a configuration for changing the position of the supply chute 31. The supply chute 31 has a bowl shape having side surfaces 31b on both sides of the bottom surface 31a. As shown in FIG. 1 (a), the supply chute 31 has a supply port M1 that receives an object to be weighed from the transport feeder 1a at a position higher than a discharge port M2 that discharges the object to be measured to the supply funnel 2. It is arranged with an inclination. Further, as shown in FIG. 1B, the supply chute 31 is configured such that its width becomes narrower as it approaches the supply port M1 and the discharge port M2.

  The supply chute 31 is fixed to a rotating shaft 32, and the rotating shaft 32 is rotated by a bearing 33 fixed on a gantry 37 and a bearing 38 supported by a support column 39 standing on the gantry 37. Supported as possible. A lever 35 is attached to the rotation shaft 32 via a lever attachment 34 fixed to the rotation shaft 32. A plurality of lever fitting portions 36 a to 36 c are provided on the lever fitting plate 36 erected on the gantry 37, and the position of the supply chute 31 is determined by fitting the lever 35 into one of the lever fitting portions. Fixed. In the circle 20, a view of the lever fitting plate 36 as seen from the direction of the arrow x is shown.

  For example, the operator can operate the lever 35 by holding the lever grip 35a. When the lever 35 is lifted obliquely upward as indicated by the arrow a in FIG. 1A, the lever 35 can be rotated around the rotation shaft 32 as indicated by the arrow b in FIG. When the lever 35 is rotated as indicated by an arrow b, the supply chute 31 is rotated (oscillated) as indicated by an arrow c around the rotation shaft 32. The position of the supply chute 31 is fixed by fitting the lever 35 into any of the lever fitting portions 36a to 36c. FIG. 1B shows a state in which the lever 35 is fitted in the lever fitting portion 36b, and the object to be weighed discharged from the supply chute 31 spirals on the supply funnel 2 as indicated by an arrow d. The material is slid down and supplied to the dispersion feeder 11. For example, when the lever 35 is fitted in the lever fitting portion 36a, the object to be discharged discharged from the supply chute 31 slides down on the supply funnel 2 so as to draw a smaller spiral than in the case of the arrow d. Conversely, when the lever 35 is fitted in the lever fitting portion 36c, the object to be weighed discharged from the supply chute 31 slides down on the supply funnel 2 so as to draw a spiral that is larger than in the case of the arrow d.

  Even when the lever 35 is fitted into any of the lever fitting portions 36a to 36c, the supply chute 31 is arranged in the direction of discharge of the object to be weighed discharged from the supply chute 31 in plan view or on the extension line thereof. It arrange | positions so that the lower opening 2b may not be located. That is, the supply chute 31 is arranged so that the discharge direction of the object to be measured discharged from the supply chute 31 in a plan view is a direction away from the lower opening 2 b of the supply funnel 2. Therefore, as described above, the object to be weighed discharged from the supply chute 31 slides down on the supply funnel 2 so as to draw a spiral.

  In addition, although the rotating shaft 32 is provided so that the axial direction may become a vertical direction, as shown by the chain line 32i, the axial direction may be provided slightly inclined from the vertical direction.

  In the present embodiment, the object to be weighed discharged from the supply chute 31 slides down on the supply funnel 2 so as to draw a spiral and is supplied to the dispersion feeder 11. For this reason, the sliding speed of the object to be weighed is slowed down on the supply funnel 2, and the impact when the object to be weighed collides with the dispersion feeder 11 or the object to be weighed on the dispersion feeder 11 previously supplied is reduced. Damage to the object can be prevented. Further, since the object to be weighed slides down on the supply funnel 2 and is supplied to the central portion of the dispersion feeder 11, the object to be weighed can be evenly supplied onto the dispersion feeder 11 without any deviation. . Therefore, the objects to be weighed supplied from the respective linear feeders 12 to the respective supply hoppers 13 and the respective weighing hoppers 14 also have substantially equal amounts, and a good combination weighing accuracy can be obtained.

  Further, the supply chute 31 and the supply funnel 2 that come into contact with the object to be weighed are made of stainless steel, and the urethane rubber into the object to be weighed is used as in the case of using a conventional layer thickness adjusting member to which urethane rubber or the like is attached. It is possible to prevent contamination of foreign matters such as.

  In addition, the object to be weighed discharged from the supply chute 31 differs in how it slides down on the supply funnel 2 depending on the drop position on the supply funnel 2. For example, rather than dropping near the peripheral edge of the lower opening 2 b of the supply funnel 2, the falling speed (sliding speed) is slower when dropping near the peripheral edge of the upper opening 2 a because it slides while drawing a large spiral. . Furthermore, since the properties of the objects to be weighed differ depending on the type, and the sliding way on the supply chute 31 and the supply funnel 2 is also different, a suitable position of the supply chute 31 corresponding to each type of the objects to be weighed is obtained in advance. In response to this, a lever insertion plate 36 in which the positions of the lever insertion portions 36 a to 36 c are determined and fixed to the gantry 37. A suitable position of the supply chute 31 corresponding to each type of object to be weighed is obtained by performing a test, for example. For example, a certain type of object to be weighed is flowed to the transport feeder 1a, and the combination weigher is tested. At this time, the position of the supply chute 31 is changed. At each changed position, for example, the amount of the objects to be weighed on the dispersion feeder 11 and each linear feeder 12 is visually confirmed, and the objects to be weighed on the dispersion feeder 11 are checked. It is determined whether the objects and the objects to be weighed on each of the linear feeders 12 are uniformly distributed without any deviation, and the position of the supply chute 31 when it is determined that the objects and the objects to be weighed are more evenly distributed is determined as a suitable position. Good. Alternatively, the measured value of the weight of the object to be weighed supplied to each weighing hopper 14 is displayed on the display screen of the operation indicator 19, and the object to be weighed is uniform without any deviation based on the measured value. The position of the supply chute 31 when it is determined whether or not it is dispersed more uniformly may be set as a suitable position. In this case, the dispersion or standard deviation of the measurement values obtained by the respective weight sensors 15 is obtained, and the position of the supply chute 31 when the obtained value is the minimum may be set as a suitable position. In any case, it is visually confirmed that the object to be weighed is not damaged.

  As described above, a suitable position of the supply chute 31 corresponding to a certain type of object to be weighed can be obtained. Similarly, a suitable position of the supply chute 31 corresponding to each of a plurality of types of objects to be weighed is obtained. In this embodiment, for example, a suitable position of the supply chute 31 corresponding to each of three types of objects to be weighed is obtained, and the positions of the three lever fitting portions 36a to 36c are determined accordingly. Therefore, since the position of the supply chute 31 can be changed according to each of a plurality of types of objects to be weighed, it is possible to cope with a plurality of types of objects to be weighed. Examples of the objects to be weighed include various types of confectionery such as potato chips and rice cakes, and can handle a plurality of kinds of objects to be weighed.

  The lever fitting plate 36 is provided with three lever fitting portions 36a to 36c so as to be compatible with three types of objects to be weighed. The structure which can respond to four or more types of to-be-measured objects may be sufficient. Moreover, the fixing method of the lever 35 is not restricted to the structure using the lever insertion board 36 which provided the lever insertion part. Moreover, the structure which can change (adjust) the fixing position of the lever 35 continuously may be sufficient.

  When a combination weigher is used to measure only one type of object to be weighed and other types of objects to be weighed are not to be measured, depending on the type of object to be weighed, Alternatively, a suitable position of the supply chute 31 may be set, and the supply chute 31 may be fixed in that state.

(Second Embodiment)
FIG. 2A is a diagram showing a schematic configuration of a combination weigher supply device and a combination weigher according to a second embodiment of the present invention as viewed from the side, and FIG. It is a figure which shows schematic structure which looked at the apparatus from upper direction. 2 (a) and 2 (b), the same parts as those in FIGS. 1 (a) and 1 (b) are denoted by the same reference numerals, and the description thereof is omitted.

  The supply device for a combination weigher of this embodiment includes a supply funnel 2 and a supply chute device 4, and supplies the objects to be weighed supplied from the conveyor 1b to the combination weigher. In the present embodiment, a supply chute device 4 is used instead of the supply chute device 3 in the first embodiment. In addition, as a means for supplying an object to be fed to the supply chute device 4, for example, a transport conveyor 1 b made of a belt conveyor is used, but instead of this, the vibration-type transport feeder 1 a used in the first embodiment is used. May be.

  The supply chute device 4 is provided on the supply chute 41 having the inclined portion 41a and the horizontal portion 41b, and the horizontal portion 41b of the supply chute 41, and a storage frame 42 for storing the objects to be weighed supplied from the transport conveyor 1b. A vibration device 43 that supports and vibrates the supply chute 41, a mounting table 44 for mounting and fixing the vibration device 43, a rotation shaft 45 that supports the mounting table 44, and a rotation shaft 45. And a driving device 46 that rotates. The mounting table 44, the rotation shaft 45, and the driving device 46 constitute a chute position changing means. The horizontal portion 41b of the supply chute 41 has a bowl shape with a constant width closed at one end side, and the inclined portion 41a continuing from the other end side has the same configuration as the supply chute 31 of FIG. 1, and the horizontal portion 41b side is wide. And the outlet side has a narrow bowl shape.

  Here, the vibration device 43 and the drive device 46 are configured to be controlled by the control device 18 of the combination weigher.

  In the combination weigher, for example, a level detector 21 for detecting the amount of an object to be weighed on the dispersion feeder 11 is provided. For example, an ultrasonic sensor is used for the level detector 21, the layer thickness of the object to be weighed on the dispersion feeder 11 is detected, and the detection signal is sent to the control device 18. In the control device 18, based on the layer thickness of the object to be weighed on the dispersion feeder 11 detected by the level detector 21, the operation of the vibration device 43 is performed so as to keep the object to be weighed on the dispersion feeder 11 at a constant amount. Control. When the vibration device 43 is operated, the supply chute 41 vibrates, and the object to be weighed on the horizontal portion 41b is sent to the inclined portion 41a and discharged from the inclined portion 41a onto the supply funnel 2.

  The drive device 46 includes, for example, a reduction gear mechanism portion to which a motor is attached, and the rotation shaft 45 is connected to the reduction gear mechanism portion. The reduction gear mechanism has a known configuration in which the rotation of the motor is reduced by a plurality of gears and transmitted to the rotation shaft 45. By rotating the rotation shaft 45 by controlling the driving device 46, the mounting table 44 is rotated, and the supply chute 41 is rotated (oscillated) as indicated by an arrow c around the rotation shaft 45. To do. The drive device 46 may be configured to rotate the rotation shaft 45 by an air cylinder with a positioner, for example, instead of the motor or the like.

  Here, in the present embodiment, a suitable position of the supply chute 41 is obtained by performing a test or the like in advance according to each of a plurality of types of objects to be weighed, and the suitable position is stored in the control device 18. . What is necessary is just to obtain | require the suitable position of the supply chute 41 according to each kind of to-be-measured object similarly to the case where the suitable position of the supply chute 31 in 1st Embodiment is calculated | required. In this embodiment, when the operator operates the operation indicator 19, the control device 18 can control the drive device 46 to change the position of the supply chute 41. Therefore, when the suitable position of the supply chute 41 is obtained, the position of the supply chute 41 is changed by operating the operation indicator 19. Then, the determined suitable position of the supply chute 41 is stored in the control device 18 together with the type of the object to be weighed by setting it together with the type of the object to be weighed by operating the operation indicator 19. Usually, in a combination weigher used for a plurality of types of objects to be weighed, the types of objects to be weighed are also set as operating conditions by operating the operation indicator 19 before starting operation. For example, when the type of the object to be weighed is set as the operating condition, the control device 18 controls the driving device 46 to set or change the position of the supply chute 41 so that the position is suitable for the type. It may be configured as follows. Alternatively, the position setting screen of the supply chute is displayed on the display screen of the operation indicator 19, and the type of the object to be weighed is set (input) on the position setting screen, so that a suitable position corresponding to the type is obtained. The control device 18 may be configured to control or drive the drive device 46 so as to set or change the position of the supply chute 41.

  In this embodiment, the combination weigher is used to measure only one type of object to be measured, for example, and when the other types of object to be measured are not to be measured, A suitable position of the supply chute 41 may be set according to the object to be weighed, and the mounting table 44 may be fixed in that state. In this case, the rotation shaft 45 and the driving device 46 are not necessary.

  In the first embodiment, the position of the supply chute 31 can be changed manually by operating the lever 35. However, in the first embodiment, as in the case of the second embodiment, The position of the supply chute 31 may be automatically changed. For example, in FIG. 1, the rotation shaft 32 fixed to the supply chute 31 may be connected to the drive device 46 (see FIG. 2A) and rotated by the drive device 46.

  In the first and second embodiments, the supply chutes 31 and 41 are configured to be rotatable. However, the supply chutes 31 and 41 are arranged at a predetermined angle (for example, an angle of 90 degrees) with respect to the discharge direction of the object to be weighed. ) In the horizontal direction (for example, the direction of the arrow y in FIGS. 1B and 2B). In this case, for example, in FIG. 2, the mounting table 44 may be configured to be horizontally movable in the direction of the arrow y in FIG. 2B without providing the rotation shaft 45 and the drive device 46. Various configurations for horizontally moving the supply chutes 31 and 41 are conceivable, and any configuration may be used as long as the horizontal movement is possible.

  INDUSTRIAL APPLICABILITY The combination weigher supply device according to the present invention is useful as a combination weigher supply device that can uniformly supply an object to be weighed onto a dispersion feeder and prevent damage to the object to be weighed. is there.

2 Supply Funnel 2a Supply Funnel Upper Opening 2b Supply Funnel Lower Opening 3 Supply Chute Device 4 Supply Chute Device 18 Control Device 19 Operation Display 31 Supply Chute 41 Supply Chute 45 Rotating Shaft 46 Drive Device

Claims (5)

A combination for supplying the objects to be weighed to a combination weigher having a conical dispersion feeder and a plurality of linear feeders that are radially provided around the dispersion feeder and that deliver the objects to be weighed supplied from the dispersion feeder to the hopper A feeding device for a scale,
An inverted frustoconical supply funnel that is disposed above the dispersion feeder and discharges the object to be weighed received from the upper opening from the lower opening to supply the object to the dispersion feeder;
A bowl-like chute disposed with an inclination such that the one end is higher than the other end so that the object to be weighed supplied to one end side in the longitudinal direction is slid down and discharged onto the supply funnel from the other end side. And
The direction in which the discharge direction of the object to be discharged from the chute deviates from the lower opening of the supply funnel in plan view in order to slide the object to be discharged from the chute while drawing a spiral on the supply funnel. A supply device for a combination weigher in which the chute is arranged so that   The falling position of the object to be weighed discharged from the chute to the supply funnel can be changed within the range from the peripheral edge of the lower opening of the supply funnel to the peripheral edge of the upper opening. The combination according to claim 1, wherein the chute is configured to change its position so that a discharge direction of an object to be weighed discharged from the chute is a direction deviating from a lower opening of the supply funnel. Weighing supply device.   The supply device for a combination weigher according to claim 2, wherein the chute is configured to change its position by rotating around an axis located on the one end side thereof. The falling position of the object to be weighed discharged from the chute to the supply funnel can be changed within the range from the peripheral edge of the lower opening of the supply funnel to the peripheral edge of the upper opening. Chute position changing means for changing the position of the chute so that the discharge direction of the object to be weighed discharged from the chute is a direction deviating from the lower opening of the supply funnel,
An input means for inputting one type from a plurality of types of objects to be weighed;
The position of the chute determined in advance according to each of a plurality of types of objects to be weighed is stored, and the position of the chute is set to be the position of the chute according to the type of objects to be weighed input from the input means. The supply device for a combination weigher according to claim 1, further comprising control means for controlling the changing means.   The combination chute supply device according to claim 4, wherein the chute position changing means is configured to change the position of the chute by rotating the chute about an axis located on the one end side thereof. .

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