WO2014112269A1 - 検査システム - Google Patents
検査システム Download PDFInfo
- Publication number
- WO2014112269A1 WO2014112269A1 PCT/JP2013/083699 JP2013083699W WO2014112269A1 WO 2014112269 A1 WO2014112269 A1 WO 2014112269A1 JP 2013083699 W JP2013083699 W JP 2013083699W WO 2014112269 A1 WO2014112269 A1 WO 2014112269A1
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- WIPO (PCT)
- Prior art keywords
- conveyor
- weight
- inspection
- weighed
- weighing
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/16—Sorting according to weight
- B07C5/18—Sorting according to weight using a single stationary weighing mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/16—Sorting according to weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/76—Fixed or adjustable ploughs or transverse scrapers
- B65G47/766—Adjustable ploughs or transverse scrapers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G11/00—Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/03—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/23—Support or suspension of weighing platforms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/28—Frames, Housings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
- B65G21/02—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors consisting essentially of struts, ties, or like structural elements
- B65G21/06—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors consisting essentially of struts, ties, or like structural elements constructed to facilitate rapid assembly or dismantling
Definitions
- the present invention relates to an inspection system, more specifically, to inspect an object to be weighed by weighing the object to be weighed conveyed by a weighing conveyor, and operate a sorting device at a subsequent stage based on the inspection result to measure the object to be weighed.
- the present invention relates to an inspection system that sorts objects.
- an inspection system that detects the weight of an object to be weighed with a measuring instrument, determines the quality of the object to be weighed using the detection result, and further distributes the object to be weighed by a sorting device at the subsequent stage based on the determination result. It has been known.
- Patent Document 1 Japanese Patent Laid-Open No. 2002-114366
- the weight of the object to be weighed conveyed by the weighing conveyor is detected by a weighing instrument in the weight inspection apparatus, and the detection result is used.
- the quality of the object to be weighed is judged.
- the arm provided on the sorting conveyor is operated based on the determination result of the weight inspection device, and the arm changes the traveling direction of the object to be weighed. Are distributed.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-114366
- the weight inspection device and the sorting device are separated from each other. Therefore, the leg portion for supporting the weighing device and the sorting device are supported. Leg portions are necessary, and there is a problem that it is difficult to clean the floor surface below the apparatus.
- An object of the present invention is an inspection system that determines the quality of an object to be weighed using the weight detected by a weighing conveyor, and distributes the object to be weighed by operating a subsequent sorting device based on the determination result. It is to provide an inspection system excellent in cleanability.
- the inspection system includes a weight inspection device, a sorting device, and a common frame.
- the weight inspection apparatus includes a weighing conveyor that conveys an object to be weighed, and a weighing instrument that measures an object to be weighed conveyed by the weighing conveyor.
- the weight inspection apparatus inspects the object to be weighed using the measurement result of the measuring instrument.
- the sorting apparatus includes a sorting conveyor, a movable member, and a driving unit.
- the sorting conveyor is arranged on the downstream side of the weighing conveyor.
- a movable member contacts the to-be-measured object conveyed by the distribution conveyor, and changes the advancing direction of to-be-measured object.
- the drive unit drives the movable member to contact the object to be measured based on the inspection result of the weight inspection apparatus.
- the common frame supports the weighing conveyor, the weighing device, and the movable member.
- the inspection system is compared with the case where the weight inspection apparatus and the sorting apparatus have individual frames.
- the structure around the leg can be made simple. As a result, an inspection system that is compact and excellent in cleaning properties can be provided.
- the movable member includes a rotating shaft, an arm member, and a balance member.
- the rotation shaft is preferably supported by a common frame and is rotationally driven by a drive unit.
- the arm member preferably extends from the rotation shaft in the radial direction of the rotation shaft, and contacts the object to be measured when the rotation shaft is driven to rotate by the drive unit.
- the balance member extends from the rotation shaft in the direction opposite to the arm member.
- the rotation member is provided with the balance member extending in the direction opposite to the arm member with respect to the rotation shaft, vibration of the rotation shaft in the axial direction can be suppressed. Therefore, even if the weighing conveyor and the weighing device and the rotating shaft of the arm member are supported by the common frame, it is difficult to adversely affect the inspection accuracy of the weight inspection apparatus. As a result, it is possible to provide an inspection system excellent in cleanability while maintaining inspection accuracy and inspection efficiency.
- the rotating shaft extends in a direction perpendicular to the conveying surface of the sorting conveyor.
- an arm member and a balance member it is desirable to rotate along a field parallel to a conveyance surface of a distribution conveyor.
- the arm member and the balance member rotate along a plane parallel to the transfer surface of the sorting conveyor, the torsional moment acting on the rotating shaft increases.
- the balance member it is possible to suppress the vibration in the axial direction of the rotation shaft that occurs with the rotation of the arm member. Therefore, even if the weighing conveyor and the weighing device and the rotating shaft of the arm member are supported by the common frame, it is difficult to adversely affect the inspection accuracy of the weight inspection apparatus. As a result, it is possible to provide an inspection system excellent in cleanability while maintaining inspection accuracy and inspection efficiency.
- the rotating shaft extends in a direction perpendicular to the transport surface of the weighing conveyor.
- the balance member preferably intersects with a plane through which the center of gravity of the arm member passes when the rotation shaft is rotationally driven by the drive unit.
- the balance member is arranged so as to intersect with the plane through which the center of gravity of the arm member passes, the arm member and the balance member are easily balanced on the rotating shaft. Therefore, it is possible to suppress the vibration in the axial direction of the rotation shaft that occurs with the rotation of the arm member. In other words, it is possible to suppress the vibration in the direction perpendicular to the conveying surface of the weighing conveyor, which occurs when the arm member is rotated. Therefore, even if the weighing conveyor and the weighing device and the rotating shaft of the arm member are supported by the common frame, it is difficult to adversely affect the inspection accuracy of the weight inspection apparatus. As a result, it is possible to provide an inspection system excellent in cleanability while maintaining inspection accuracy and inspection efficiency.
- the center of gravity of the balance member is arranged on a plane through which the center of gravity of the arm member passes when the rotating shaft is rotationally driven by the drive unit.
- the arm member and the balance member are particularly easy to balance, and the vibration in the axial direction of the rotation shaft generated along with the rotation of the arm member is particularly easily suppressed. As a result, it is possible to provide an inspection system excellent in cleanability while maintaining inspection accuracy and inspection efficiency.
- the balance member is provided in order to suppress the vibration of the arm member in the direction perpendicular to the conveyance surface of the weighing conveyor.
- the moment of inertia around the rotation axis of the arm member and the balance member is larger than the moment of inertia around the rotation axis of the arm member alone.
- the product of the weight of the balance member and the distance from the center of gravity of the balance member to the axis of the rotation shaft is calculated from the weight of the arm member and the center of gravity of the arm member to the axis of the rotation shaft. It is desirable to be determined so as to approach the product of the distance.
- the weight of the balance member is desirably 30% or more of the total of the weight of the balance member and the weight of the arm member.
- the weight of the balance member is desirably 50% or more of the total weight of the balance member and the arm member.
- the inspection efficiency can be kept high.
- the common frame further supports the sorting conveyor.
- the leg portion of the inspection system can have a simple structure. As a result, an inspection system that is compact and excellent in cleaning properties can be provided.
- the weight inspection device and the distribution device have individual frames.
- the leg portion of the inspection system can have a simple structure. As a result, an inspection system that is compact and excellent in cleaning properties can be provided.
- FIG. 6 is a schematic plan view of a sorting device for explaining an operation of a movable member of the sorting mechanism in FIG. 5.
- FIG. 1 It is a schematic side view of a movable member for demonstrating the function of the balance member provided in the distribution mechanism of FIG. (A) has drawn the movable member part of the arm type distribution mechanism which does not have the conventional balance member. (B) depicts the movable member portion of the distribution mechanism of FIG. It is the schematic sectional drawing which looked at the horizontal cut surface of the support
- the inspection system 1 is a system that performs a weight inspection of the object to be weighed and distributes the object to be weighed P according to the result of the weight inspection.
- the inspection system 1 mainly includes a take-in device 10, a weight inspection device 20, and a sorting device 30.
- the take-in device 10, the weight inspection device 20, and the sorting device 30 are supported by a frame 52 fixed to the support column 50.
- the movement of each part of the inspection system 1 is controlled by the control unit 80 (see FIG. 2).
- the take-in device 10 receives an object to be weighed P supplied from an upstream process (for example, combination weighing / bag making and packaging process) (not shown) and takes it into the inspection system 1.
- an upstream process for example, combination weighing / bag making and packaging process
- the weight inspection device 20 inspects whether or not the weight of the object to be weighed P is within the allowable weight range.
- the weight of the object to be weighed P is within the allowable weight range means that the weight of the object to be weighed P is not less than the allowable minimum weight and not more than the allowable maximum weight.
- the sorting device 30 sorts the objects to be weighed P based on the inspection result of the weight inspection device 20. Specifically, the sorting device 30 conveys the object P to be measured, which has been determined to have passed the weight inspection, by a distribution conveyor 31 described later, and performs a downstream process (for example, the object P to be measured). To the packaging process). In addition, the sorting device 30 removes the objects to be weighed P determined to have failed the weight inspection from the sorting conveyor 31.
- the control unit 80 includes functional units that respectively control the take-in device 10, the weight inspection device 20, and the sorting device 30, and constitute a part of the take-in device 10, the weight test device 20, and the sorter 30 To do. On the other hand, the control unit 80 also functions as an integrated control unit that comprehensively controls the capture device 10, the weight inspection device 20, and the sorting device 30.
- the capture device 10 is a device that receives the object P from the upstream side and captures it into the inspection system 1. As shown in FIG. 1, the take-in device 10 mainly includes a take-in conveyor 11 that conveys the object to be weighed P.
- the uptake conveyor 11 mainly includes an uptake conveyor frame 12, a driving roller 13a and a driven roller 13b, a flat belt 14, A take-up conveyor motor 15.
- the intake conveyor frame 12 is supported by a conveyor mounting bracket 17 extending from the case 16.
- the case 16 is disposed below the intake conveyor frame 12 and accommodates the intake conveyor motor 15 therein.
- the case 16 is fixed to a subframe 62 connected to a rail member 61 described later.
- the driving roller 13a and the driven roller 13b are provided at both ends of the take-in conveyor frame 12 as shown in FIG.
- the driving roller 13a and the driven roller 13b are rotatably supported by the take-in conveyor frame 12.
- the flat belt 14 is a conveyance belt wound around two rollers 13a and 13b.
- the flat belt 14 is driven by the drive roller 13a by the take-in conveyor motor 15, and thereby transports the object P received from the upstream conveyor (not shown) in the direction of arrow A in FIG.
- the flat belt 14 transports the object P to be measured horizontally from the rear to the front by driving the driving roller 13a by the intake conveyor motor 15.
- the object P to be weighed conveyed by the flat belt 14 is delivered to the weighing conveyor 21 of the weight inspection apparatus 20 arranged on the downstream side (front).
- the movement of the intake conveyor 11 (movement of the intake conveyor motor 15) is controlled by the control unit 80.
- the weight inspection device 20 includes a weighing conveyor 21 and a load cell 28 as shown in FIGS. 1 and 2.
- the weighing conveyor 21 is a conveyor that conveys the object to be weighed P.
- the weighing conveyor 21 is arranged on the downstream side of the intake conveyor 11 as shown in FIG.
- the load cell 28 is an example of a measuring instrument.
- the load cell 28 measures the weight of the measurement object P conveyed by the weighing conveyor 21.
- the weight inspection apparatus 20 inspects the object to be weighed P using the measurement result of the load cell 28. More specifically, the weight inspection apparatus 20 inspects whether the weight of the object P measured by the load cell 28 is within the allowable weight range. In other words, the weight of the object to be weighed P is within the allowable weight range means that the weight of the object to be weighed P is not less than the allowable minimum weight and not more than the allowable maximum weight.
- the weighing conveyor 21 mainly includes a weighing conveyor frame 22, a driving roller 23a and a driven roller 23b, a flat belt 24, and a weighing conveyor. And a motor 25.
- the weighing conveyor frame 22 is supported by a conveyor mounting bracket 27 extending from the case 26.
- the case 26 is disposed below the weighing conveyor frame 22 and accommodates the weighing conveyor motor 25 therein.
- the case 26 is fixed to a frame 52 described later.
- the driving roller 23a and the driven roller 23b are provided at both ends of the weighing conveyor frame 22 as shown in FIG.
- the driving roller 23a and the driven roller 23b are rotatably supported by the weighing conveyor frame 22.
- the flat belt 24 is a conveying belt wound around two rollers 23a and 23b.
- the flat belt 24 conveys the workpiece P received from the take-in conveyor 11 in the direction of arrow A in FIG. 1 by driving the driving roller 23a by the weighing conveyor motor 25.
- the flat belt 24 horizontally transports the object P to be measured from the rear to the front by driving the driving roller 23a by the measuring conveyor motor 25.
- the height of the conveying surface of the weighing conveyor 21 (the vertical position of the conveying surface of the flat belt 24) is the same as the height of the conveying surface of the take-in conveyor 11 (the vertical position of the conveying surface of the flat belt 14). is there.
- the objects to be weighed P conveyed by the flat belt 24 are delivered to the sorting conveyor 31 of the sorting device 30 arranged on the downstream side (front).
- the movement of the weighing conveyor 21 (the movement of the weighing conveyor motor 25) is controlled by the control unit 80.
- the load cell 28 is accommodated in a case 26 disposed below the weighing conveyor 21 (see FIG. 3). As described above, the case 26 also houses the weighing conveyor motor 25 that drives the driving roller 23 a of the weighing conveyor 21. In FIG. 3, the weighing conveyor motor 25 is omitted.
- the load cell 28 is fixed to the frame 52. More specifically, one end (fixed end) of the load cell 28 is fixed to a support column 55 extending upward from a second member 54 of a frame 52 described later via a bracket 29. The other end (free end) of the load cell 28 is fixed to the case 26 in which the load cell 28 is accommodated. In addition, the load cell 28 is arrange
- the case 26 is provided with four conveyor mounting brackets 27 (see FIGS. 1 and 3) extending upward. More specifically, a pair of left and right conveyor mounting brackets 27 are provided on the front side and the rear side of the case 26, respectively. A U-shaped groove 27a is formed at the upper end of the conveyor mounting bracket 27 so as to be recessed downward (see FIG. 3). Pins 22a provided so as to protrude from the left and right side surfaces of the weighing conveyor frame 22 are respectively inserted into the grooves 27a (see FIG. 3). The pin 22 a inserted into the groove 27 a is supported by the case 26 via the conveyor mounting bracket 27.
- the free end of the load cell 28 is loaded with the weight of the weighing conveyor 21 (including the weight of the workpiece P when the workpiece P is transported).
- the load cell 28 measures the weight of the weighing object P conveyed on the weighing conveyor 21 by detecting distortion generated when the weighing object P is conveyed on the weighing conveyor 21. Can do.
- the weighing signal of the load cell 28 is transmitted to the control unit 80 constituting a part of the weight inspection apparatus 20.
- the control unit 80 as a part of the weight inspection apparatus 20 inspects the object to be weighed P using the measurement result of the load cell 28. Specifically, when the weight of the object to be weighed P is within the allowable weight range, the control unit 80 determines that the object to be weighed P has passed the inspection. In addition, the control unit 80 determines that the object to be weighed P fails the inspection when the weight of the object to be weighed P is out of the allowable weight range (when it is lighter than the allowable minimum weight or heavier than the allowable maximum weight). To do.
- the sorting device 30 includes a sorting conveyor 31, a sorting mechanism 40, and an inclined plate 38, as shown in FIGS.
- the distribution conveyor 31 is a conveyor that conveys the objects to be weighed P.
- the sorting conveyor 31 is arranged on the downstream side of the weighing conveyor 21 as shown in FIG.
- the sorting mechanism 40 changes the traveling direction of the weighing object P that has been rejected as a result of the inspection by the weight inspection apparatus 20, and removes the weighing object P that has failed from the sorting conveyor 31.
- the inclined plates 38 are members provided on both the left and right sides of the sorting conveyor 31.
- the inclined plate 38 is formed so as to be inclined downward from the sorting conveyor 31.
- the inclined plate 38 is a member for guiding the object to be weighed P removed from the distribution conveyor 31 by the distribution mechanism 40 to an unacceptable article conveyance conveyor (not shown).
- the sorting conveyor 31 mainly includes a sorting conveyor frame 32, a driving roller 33a and a driven roller 33b, a flat belt 34, And a sorting conveyor motor 35.
- the sorting conveyor frame 32 is supported by a conveyor mounting bracket 37 extending from the case 36.
- the case 36 is disposed below the sorting conveyor frame 32 and houses the sorting conveyor motor 35 therein.
- the case 36 is fixed to a subframe 62 connected to a rail member 61 described later. More specifically, the case 36 is fixed to a support column 65 extending upward from a second member 64 of a subframe 62 described later (see FIG. 4).
- the rail member 61 is fixed to the frame 52. That is, the case 36 is supported by the frame 52 via the rail member 61 and the subframe 62.
- the case 36 is provided with four conveyor mounting brackets 37 (see FIG. 4) extending upward. More specifically, a pair of left and right conveyor mounting brackets 37 are provided on the front side and the rear side of the case 36, respectively.
- a U-shaped groove 37a is formed at the upper end of the conveyor mounting bracket 37 so as to be recessed downward (see FIG. 4).
- Pins 32a provided so as to protrude from the left and right side surfaces of the sorting conveyor frame 32 are inserted into the grooves 37a (see FIG. 4).
- the pin 32 a inserted into the groove 37 a is supported by the case 36 via the conveyor mounting bracket 37. That is, the sorting conveyor 31 is supported by the frame 52 via the conveyor mounting bracket 37, the case 36, the support 65, the subframe 62, and the rail member 61.
- the take-in conveyor 11 is also supported by the frame 52 via the conveyor mounting bracket 17, the case 16, the support 65, the sub-frame 62, and the rail member 61 in the same manner as the distribution conveyor 31. Has been.
- the driving roller 33a and the driven roller 33b are provided at both ends of the sorting conveyor frame 32 as shown in FIG.
- the driving roller 33a and the driven roller 33b are rotatably supported by the sorting conveyor frame 32.
- the flat belt 34 is a conveyance belt wound around two rollers 33a and 33b.
- the flat belt 34 conveys the workpiece P received from the weighing conveyor 21 in the direction of arrow A in FIG.
- the flat belt 34 transports the object P to be measured horizontally from the rear to the front by the driving roller 33a being driven by the sorting conveyor motor 35.
- the height of the conveying surface of the sorting conveyor 31 (the vertical position of the conveying surface of the flat belt 34) is the same as the height of the conveying surface of the weighing conveyor 21 (the vertical position of the conveying surface of the flat belt 24). is there.
- the workpiece P that has passed the inspection of the weight inspection apparatus 20 and is transported by the flat belt 34 is transported to the front end of the sorting conveyor 31 and supplied to a downstream (front) process (not shown).
- the movement of the sorting conveyor 31 (the movement of the sorting conveyor motor 35) is controlled by the control unit 80.
- the distribution mechanism 40 is a so-called arm-type distribution mechanism that distributes the objects to be measured P by moving an arm member 42 described later.
- the movement of the sorting mechanism 40 is controlled by a control unit 80 as a part of the sorting device 30.
- one sorting mechanism 40 is provided on each side of the sorting conveyor 31.
- the sorting mechanism 40 arranged on the left side of the sorting conveyor 31 is configured symmetrically with the sorting mechanism 40 arranged on the right side of the sorting conveyor 31 and the sorting conveyor 31.
- the distribution mechanism 40 arranged on the left side of the distribution conveyor 31 will be mainly described with reference to FIG. In particular, when there is no notice, the distribution mechanism 40 arranged on the left side of the distribution conveyor 31 is described. Since the distribution mechanism 40 arranged on the right side of the distribution conveyor 31 is the same as the distribution mechanism 40 arranged on the left side of the distribution conveyor 31, the description thereof is omitted except for a part thereof.
- the distribution mechanism 40 mainly includes a movable member 40a, a cylinder 45, and a housing 40b.
- the movable member 40a is a member that comes into contact with the object to be weighed P conveyed by the sorting conveyor 31 and changes the traveling direction of the object to be weighed P.
- the movable member 40 a includes a rotating shaft 41, an arm member 42, a balance member 43, and a connecting pin 44.
- the cylinder 45 is an example of a drive unit that drives the movable member 40a.
- the housing 40b is a member that accommodates the cylinder 45.
- the housing 40b supports the movable member 40a as will be described later.
- the housing 40b is supported by the frame 52 via a rail member 61 as will be described later. That is, the movable member 40a is supported by the frame 52 via the housing 40b and the rail member 61.
- the distribution mechanism 40 disposed on the left side of the distribution conveyor 31 distributes the objects to be weighed P determined to be unacceptable as a result of the inspection by the weight inspection apparatus 20.
- the cylinder 45 is driven to rotate the movable member 40 a as shown in FIG. 6, and the movable member 40 a is brought into contact with the object to be weighed P conveyed by the sorting conveyor 31.
- the distribution mechanism 40 disposed on the left side of the distribution conveyor 31 distributes the object to be weighed P determined that the weight of the object to be weighed P is lighter than the allowable minimum weight as a result of the inspection by the weight inspection apparatus 20.
- the cylinder 45 is driven to rotate the movable member 40 a as shown by the solid line in FIG. 6, thereby bringing the movable member 40 a into contact with the object P to be measured conveyed by the distribution conveyor 31.
- the object P conveyed by the sorting conveyor 31 is prevented from moving forward (in the direction of arrow A in FIG. 1) by the arm member 42, and the arm member 42 Along the direction of arrow B in FIG.
- the object to be weighed P is guided out of the flat belt 34.
- the object P to be weighed led out of the flat belt 34 moves on the inclined plate 38 and is delivered to a rejected article conveying conveyor (not shown).
- the distribution mechanism 40 pushes the object P by moving the arm member 42 rotated as shown by the solid line in FIG. 6 to the original position (the position indicated by the two-dot broken line in FIG. 6).
- the object P to be weighed may be guided out of the flat belt 34.
- the distribution mechanism 40 may be provided only on the left side of the distribution conveyor 31.
- the distribution mechanism 40 rotates the arm member 42 so that the object to be weighed P determined to be unacceptable by the weight inspection apparatus 20 is less than the allowable minimum weight, or Regardless of whether the weight of the object to be weighed P is heavier than the allowable maximum weight, all of the objects to be weighed may be led to the left of the sorting conveyor 31.
- the movable member 40a includes a rotating shaft 41, an arm member 42, a balance member 43, and a connecting pin 44.
- the rotating shaft 41 is a shaft that is rotationally driven by the cylinder 45. As shown in FIG. 5, the rotary shaft 41 is pivotally supported by two bearings 48 fixed to the housing 40b. The rotary shaft 41 is provided near the front end of the sorting conveyor 31, in other words, near the front end of the inspection system 1. The rotating shaft 41 and the arm member 42 and the balance member 43 attached to the rotating shaft 41 are supported by the housing 40b via a bearing 48. As will be described later, since the housing 40b is supported by a rail member 61 fixed to the frame 52, the rotating shaft 41 is supported by the frame 52 via the housing 40b and the rail member 61. How the rotating shaft 41 is driven by driving the cylinder 45 will be described later.
- Rotating shaft 41 is arranged to extend in the vertical direction.
- the rotating shaft 41 is arranged so as to extend in a direction perpendicular to the horizontal conveyance surface of the sorting conveyor 31.
- the rotating shaft 41 is arranged so as to extend in a direction perpendicular to the horizontal conveyance surface of the weighing conveyor 21.
- An arm member 42 is connected to the rotary shaft 41 so as to extend from the rotary shaft 41 in the radial direction of the rotary shaft 41. Further, a balance member 43 extending from the rotation shaft 41 in the direction opposite to the arm member 42 is connected to the rotation shaft 41. In other words, the arm member 42 is connected to the rotating shaft 41 so as to extend in the horizontal direction. Further, a balance member 43 extending in the horizontal direction and in the opposite direction to the arm member 42 is connected to the rotation shaft 41.
- the arm member 42 and the balance member 43 rotate along a horizontal plane. That is, the arm member 42 and the balance member 43 rotate along a plane parallel to the transport surface of the sorting conveyor 31 and the transport surface of the weighing conveyor 21.
- the arm member 42 is connected to the rotating shaft 41 so as to extend in the radial direction of the rotating shaft 41 as shown in FIG.
- the arm member 42 moves in the transport direction of the sorting conveyor 31 (indicated by the arrow A in FIG. 1). (See the two-dot broken line in FIG. 6).
- the object to be weighed P which is determined to be unacceptable as a result of the inspection by the weight inspection apparatus 20, and whose weight is determined to be lighter than the allowable minimum weight, is the sorting conveyor.
- the rotation shaft 41 of the sorting mechanism 40 disposed on the left side of the sorting conveyor 31 is driven by the cylinder 45, and the arm member 42 is moved to a position that prevents the weighing object P from being conveyed. (See the solid line in FIG. 6). As a result, the arm member 42 contacts the object to be weighed P, and the object to be weighed P is removed from the sorting conveyor 31 as described above.
- the arm member 42 can be rotated as quickly as possible.
- the power necessary for driving the rotating shaft 41 is as small as possible. Therefore, the arm member 42 is designed to be as light as possible within a range in which rigidity can be ensured. Therefore, the arm member 42 is generally made of a material having a low density, such as aluminum, an aluminum alloy, or a synthetic resin.
- the balance member 43 is connected to the rotary shaft 41 so as to extend in the direction opposite to the arm member 42 as shown in FIG.
- the balance member 43 is provided in order to suppress the axial vibration of the rotating shaft 41 that is generated according to the movement of the arm member 42.
- the balance member 43 is provided to suppress the vibration of the arm member 42 in the direction perpendicular to the transport surface of the weighing conveyor 21.
- the balance member 43 is provided to suppress the vibration of the arm member 42 in the direction perpendicular to the conveying surface of the weighing conveyor 21 that occurs when the arm member 42 starts rotating or when the rotation of the arm member 42 stops. It has been.
- a common frame is used to support a sorting device that uses a conventional arm-type sorting mechanism (an arm-type sorting mechanism without a balance member) and a weight inspection device. More specifically, when the weighing conveyor, the load cell, and the movable member are supported by a common frame, the arm member vibrates due to the operation of the arm member, particularly when the arm member starts to rotate or stops rotating. The vibration is also transmitted to the load cell via the rotating shaft and the frame. Therefore, if the weighing conveyor, the load cell, and the movable member are supported by a common frame, there is a problem that the weighing accuracy of the load cell is adversely affected. In order to improve the weighing accuracy of the load cell, it is conceivable to increase the inspection time of the weight inspection apparatus 20 (wait for the vibration to attenuate), but in this case, there is a problem that the inspection efficiency deteriorates. .
- the balance member 43 since the balance member 43 is provided as shown in FIG. 7B, the bending stress acting on the rotating shaft 41 can be reduced.
- the center of gravity when the arm member 42 and the balance member 43 are considered to be integrated with the axis O of the rotation shaft can be brought close to each other in plan view.
- the balance can be reduced.
- the vibration of the arm member 42 in the extending direction (vertical direction) of the rotating shaft 41 can be suppressed.
- the axial vibration of the rotating shaft 41 is also suppressed, and the influence of the vibration of the arm member 42 on the weighing accuracy of the load cell 28 can be suppressed.
- the inventor of the present application has found that the vibration of the arm member may be reduced to about 1/10 by using such a configuration.
- the moment of inertia around the rotation axis 41 of the arm member 42 and the balance member 43 is larger than the moment of inertia around the rotation axis 41 of the arm member 42 alone. That is, in order to rotate the arm member 42 and the balance member 43, a larger power is required than when only the arm member 42 is rotated.
- the distribution mechanism 40 is generally provided at the downstream end portion in the transport direction in which the inspection system 1 transports the object P (see FIG. 1). Therefore, it is desirable that the balance member 43 be as short as possible in the horizontal direction so as not to interfere with downstream processes. In order for the balance member 43 to be short in the horizontal direction and to make the product Q2 close to the product Q1 as described above, it is necessary to increase the weight m2 of the balance member 43 sufficiently.
- the weight m2 of the balance member 43 is desirably 30% or more of the total of the weight m2 of the balance member 43 and the weight m1 of the arm member 42.
- the weight m2 of the balance member 43 is 50% or more of the total of the weight m2 of the balance member 43 and the weight m1 of the arm member 42. In the present embodiment, the weight m2 of the balance member 43 is about 75% of the total of the weight m2 of the balance member 43 and the weight m1 of the arm member 42.
- the balance member 43 is desirably made of a material whose density is twice or more that of the material of the arm member 42.
- an iron-based material is used for the balance member 43.
- the balance member 43 is a plane through which the center of gravity G1 of the arm member 42 passes when the rotation shaft 41 is rotationally driven by the cylinder 45 so that the arm member 42 and the balance member 43 are easily balanced on the rotation shaft 41. It is desirable to be placed on top. More preferably, the center of gravity G2 of the balance member 43 is desirably arranged on a plane through which the center of gravity G1 of the arm member 42 passes when the rotary shaft 41 is rotationally driven by the cylinder 45. In other words, it is desirable that the height of the center of gravity G1 of the arm member 42 coincides with the height of the center of gravity G2 of the balance member 43 in a side view.
- the connecting pin 44 is a member for connecting the rotating shaft 41 and the balance member 43. As shown in FIG. 5, the connecting pin 44 is formed in the rotation shaft 41 so as to penetrate the rotation shaft 41 in the radial direction (horizontal direction) and the balance member 43 in the horizontal direction. It is inserted through the hole.
- the cylinder 45 is an example of a drive unit.
- the cylinder 45 drives the movable member 40a to contact the object to be weighed P when the object to be weighed P that has been rejected as a result of the inspection by the weight inspection apparatus 20 is conveyed by the sorting conveyor 31.
- the cylinder 45 causes the arm member 42 to come into contact with the object to be weighed P when the object to be weighed P that has been rejected as a result of the inspection by the weight inspection apparatus 20 is conveyed by the sorting conveyor 31.
- the cylinder 45 is an air cylinder driven by compressed air.
- the cylinder 45 is driven by the compressed air to move the rod 45b forward and backward with respect to the cylinder body 45a.
- One end of a rod-shaped link member 46 is connected to the tip of the rod 45b.
- the other end of the link member 46 is connected to the rotating shaft 41 of the movable member 40a.
- the movement of the rotating shaft 41 and the arm member 42 when the cylinder 45 is driven will be described with reference to the distribution mechanism 40 disposed on the left side of the distribution conveyor 31 as an example.
- the distribution mechanism 40 disposed on the right side of the distribution conveyor 31 is the same except that the rotation directions of the rotation shaft 41 and the arm member 42 are reversed when the cylinder 45 is driven. Omitted.
- FIG. 5 shows a state in which the rod 45b of the cylinder 45 is retracted most with respect to the cylinder body 45a in the sorting mechanism 40 disposed on the left side of the sorting conveyor 31 (the rod 45b most enters the cylinder body 45a). Is drawn).
- the arm member 42 is arranged in parallel with the conveying direction of the sorting conveyor 31 in a state where the rod 45 b is most retracted with respect to the cylinder body 45 a. In this state, the arm member 42 does not come into contact with the workpiece P conveyed by the sorting conveyor 31 (see the arm member 42 drawn by a two-dot broken line of the upper movable member 40a in FIG. 6). .
- the rotating shaft 41 moves in the plan view. It is driven to rotate clockwise.
- the arm member 42 is also driven to rotate counterclockwise in a plan view and is arranged at a position in contact with the object P to be measured conveyed by the sorting conveyor 31 (of the upper movable member 40a in FIG. 6). , See arm member 42 drawn with solid lines).
- the housing 40b is a member that accommodates the cylinder 45.
- bearings 48 that support the rotating shaft 41 of the movable member 40a are provided on the upper and lower surfaces of the housing 40b. That is, the movable member 40 a is supported by the housing 40 b through the bearing 48.
- the housing 40 b is provided with rail fixing portions 47 for fixing the housing 40 b to a rail member 61 described later at two locations on the upper and lower sides of the housing 40 b.
- the rail fixing portion 47 is formed with a hole 47a (see FIG. 5) for inserting a bolt 47b (see FIG. 9).
- the rail fixing part 47 is fixed to the rail member 61 by screwing a bolt 47b inserted into the hole 47a with a bolt fixing member 61b in a rail 61a provided in the rail member 61 described later. That is, the housing 40 b is supported by the rail member 61 via the rail fixing portion 47. As will be described later, the rail member 61 is supported by the frame 52. That is, the movable member 40 a is supported by the frame 52 via the housing 40 b and the rail member 61.
- the column 50 is a member that supports a frame 52 described later.
- pillar 50 has the support
- the column main body 51a is a member extending upward from the base 51b.
- the column main body 51a is formed in a hollow, rectangular tube shape.
- Two rails 51aa extending in the vertical direction are formed on the front and rear surfaces of the column main body 51a (see FIG. 1).
- the rail 51aa is formed to extend from the upper end to the lower end of the column main body 51a.
- the rail 51aa is a C-shaped groove as shown in FIG. In other words, the rail 51aa is a groove formed such that the width W2 inside the rail 51aa is wider than the width W1 of the opening of the rail 51aa.
- a bolt fixing member 51ab is disposed in the rail 51aa.
- the width W3 of the bolt fixing member 51ab is formed larger than the width W1 of the opening of the rail 51aa so that the bolt fixing member 51ab does not come out of the opening of the rail 51aa.
- the bolt fixing member 51ab is freely movable in the vertical direction inside the rail 51aa.
- the bolt fixing member 51ab is formed with a female screw that is screwed with a bolt 52a for fixing the column main body 51a and a frame 52, which will be described later, and the bolt is screwed into the female screw so that the column main body 51a The frame 52 is fixed.
- the mounting position (mounting height) of the frame 52 can be adjusted by changing the fixing position by the bolt 52a. is there.
- the mounting position of the frame 52 with the column main body 51a By changing the mounting position of the frame 52 with the column main body 51a, the heights of the intake conveyor frame 12, the weighing conveyor frame 22 and the sorting conveyor frame 32 supported by the frame 52 are adjusted at a time. It is possible. That is, it is possible to adjust the heights of the conveyance surfaces of the take-in conveyor 11, the weighing conveyor 21, and the sorting conveyor 31 at a time by changing the attachment position of the frame 52 with respect to the column main body 51a.
- the shape of the rail 51aa and the shape of the bolt fixing member 51ab here are examples of the fixing method of the frame 52 and the column main body 51a, and are not limited thereto. However, it is desirable that the frame 52 is configured to be adjustable in the mounting position (mounting height) to the column main body 51a.
- the base 51b is formed in a U shape as shown in FIG. 1, and supports the column main body 51a.
- the base 51b has four leg portions 51ba protruding downward.
- the frame 52 is an example of a common frame.
- the intake conveyor 11, the weighing conveyor 21, the sorting conveyor 31, the load cell 28, and the movable member 40 a are supported by a frame 52.
- “supported by the frame 52” includes not only the case of being directly supported by the frame 52 but also the case of being indirectly supported by another member supported by the frame 52.
- the frame 52 mainly includes two first members 53 and one second member 54.
- the first member 53 is a beam extending in the horizontal direction.
- One of the first members 53 is fixed to the front surface of the column main body 51a, and the other one is fixed to the rear surface of the column main body 51a.
- the first member 53 is fixed so as to extend horizontally to the right from the front and rear surfaces of the column main body 51a.
- the first member 53 is fixed at two positions on the front surface or the rear surface of the column main body 51a.
- the first member 53 screws the bolt 52a into bolt fixing members 51ab respectively provided on two rails 51aa formed on the front surface or the rear surface of the column main body 51a. It is fixed.
- the fixing between the column main body 51a and the frame 52 is as described above.
- the second member 54 is a beam extending horizontally in the front-rear direction. One end of the second member 54 is fixed to an intermediate portion (intermediate portion in the left-right direction) of the first member 53 extending rightward from the rear surface of the column main body 51a. The other end of the second member 54 is fixed to an intermediate portion (intermediate portion in the left-right direction) of the first member 53 extending rightward from the front surface of the column main body 51a. That is, the frame 52 including the two first members 53 and the second member 54 is formed in an H shape in plan view.
- the second member 54 is provided with a support 55 for supporting the load cell 28 via the bracket 29. That is, the load cell 28 is supported by the frame 52. Further, as described above, the weighing conveyor 21 supported by the load cell 28 is also supported by the frame 52.
- Two rail members 61 extending in the front-rear direction are fixed to the first member 53.
- One of the rail members 61 is arranged on the left side of the conveyors 11, 21, 31, and the other of the rail members 61 is arranged on the right side of the conveyors 11, 21, 31, respectively.
- the rail member 61 is formed in a hollow, rectangular tube shape (see FIG. 9).
- One rail 61a extending in the front-rear direction is formed on the upper and lower surfaces of the rail member 61 from the rear end portion to the front end portion of the rail member 61 (see FIG. 9).
- Two rails 61a extending in the front-rear direction are formed on the inner surface of the rail member 61 from the rear end portion to the front end portion of the rail member 61 (see FIG. 9).
- the inner surface of the rail member 61 refers to a surface that faces the conveyors 11, 21, and 31 among the side surfaces of the rail member 61. That is, the inner surface of the rail member 61 is the right side surface if the rail member 61 is disposed on the left side of the conveyors 11, 21, 31, and the rail member 61 is disposed on the right side of the conveyors 11, 21, 31. Point to the left side. As shown in FIG. 9, each of the rails 61a formed on the rail member 61 is a C-shaped groove. Since the shape of the rail 61a is the same as the shape of the rail formed on the column main body 51a of the column 50, the description thereof is omitted here.
- the rail 61a on the upper surface and the lower surface of each rail member 61 is provided with one bolt fixing member 61b that can freely move in the front-rear direction in the rail 61a.
- the width of the bolt fixing member 61b is formed larger than the width of the opening of the rail 61a on the upper surface and the lower surface of each rail member 61 in the same manner as the bolt fixing member 51ab described above. It does not come out of the opening 61a.
- the bolt fixing member 61 b is formed with a female screw that is screwed with a bolt 47 b for fixing the housing 40 b to the rail member 61.
- the bolts 47b are screwed into the female screws of the bolt fixing member 61b, and the rail fixing portions 47 at the two upper and lower positions are fixed to the rail member 61, whereby the housing 40b and the rail member 61 are fixed.
- the fixing method of the rail member 61 and the housing 40b shown here is an illustration, and is not limited to this. However, it is desirable that the housing 40b and the rail member 61 are fixed by a method in which the mounting position of the housing 40b with respect to the rail member 61 can be adjusted.
- Two bolt fixing members 61c for fixing the sub-frame 62 that supports the sorting conveyor 31 are provided on the rails 61a disposed below the inner surface of each rail member 61 via the case 36, respectively. (See FIG. 9). Similar to the bolt fixing member 51ab described above, the width of the bolt fixing member 61c is formed larger than the width of the opening of the rail 61a on the inner surface of each rail member 61. The bolt fixing member 61c is formed on the rail 61a. It does not come out of the opening. The bolt fixing member 61 c is formed with a female screw that is screwed with a bolt 63 a for fixing the subframe 62 that supports the sorting conveyor 31 to the rail member 61.
- the sub-frame 62 mainly includes two first members 63 and one second member 64 (see FIG. 4).
- the first member 63 is a beam extending in the horizontal direction.
- Each first member 63 has one end fixed to the rail member 61 disposed on the left side of the conveyors 11, 21, and 31 and the other end fixed to the rail member 61 disposed on the right side of the conveyors 11, 21, 31. ing.
- the first member 63 and the rail member 61 are fixed by screwing the bolt 63a into a female screw of a bolt fixing member 61c provided on the rail 61a of the rail member 61.
- the fixing method of the sub-frame 62 and the rail member 61 shown here is an illustration, and is not limited to this. However, it is desirable that the sub frame 62 and the rail member 61 are fixed by a method in which the mounting position of the sub frame 62 with respect to the rail member 61 can be adjusted.
- the second member 64 is a beam extending horizontally in the front-rear direction. One end of the second member 64 is fixed to an intermediate portion (intermediate portion in the left-right direction) of the first member 63 disposed on the rear side of the two first members 63. The other end of the second member 64 is fixed to an intermediate portion (intermediate portion in the left-right direction) of the first member 63 disposed on the front side of the two first members 63. That is, the sub frame 62 including the two first members 63 and the second member 64 is formed in an H shape in plan view. The second member 64 supports the sorting conveyor 31 via the case 36 and the conveyor mounting bracket 37.
- two bolt fixing members 61c for fixing the subframe 62 that supports the take-in conveyor 11 via the case 16 are provided on the rails 61a disposed below the inner surface of each rail member 61, respectively. Is provided.
- the bolt fixing member 61 c is formed with a female screw that is screwed with a bolt 63 a for fixing the sub-frame 62 that supports the take-in conveyor 11.
- control unit 80 includes an intake conveyor motor 15, a weighing conveyor motor 25, a sorting conveyor motor 35, a load cell 28, and an inspection valve 45c. 1 is connected to each part.
- the electromagnetic valve 45c is a valve for controlling supply / stop of compressed air for driving the cylinder 45.
- the control unit 80 mainly includes a storage area including a ROM, a RAM, an HDD (hard disk), and the like.
- the control unit 80 controls the capture device 10, the weight inspection device 20, and the sorting device 30 by causing the CPU to execute a program stored in the storage area. That is, the control unit 80 constitutes a part of the capture device 10, the weight inspection device 20, and the sorting device 30.
- the control unit 80 also functions as an integrated control unit that comprehensively controls the capture device 10, the weight inspection device 20, and the sorting device 30.
- control unit 80 determines the conveyor motor 15 based on preset parameters (conveyor speed, number of inspections per unit time (processing capacity), length in the front-rear direction of the weighing conveyor, etc.). , 25 and 35 are controlled.
- control unit 80 In order to suppress the adverse effect on the weighing accuracy of the load cell 28 of the weight inspection apparatus 20, the control unit 80 normally prevents the impact when the object P passes between the conveyors, so that the take-in conveyor 11, the weighing conveyor 11 21 and the conveyor motors 15, 25, and 35 are controlled so that the transport speeds of the sorting conveyor 31 are the same.
- the control unit 80 stops all the conveyor motors 15, 25, and 35.
- the take-in conveyor 11 conveys the measurement object P at a speed (constant speed) faster than the conveyance speed of the upstream conveyor (conveyor that supplies the measurement object P to the intake conveyor 11) of the inspection system 1. To be controlled. In this way, the conveyance speed of the take-in conveyor 11 is controlled because the next object to be weighed P is supplied to the weighing conveyor 21 while the weighing conveyor 21 is weighing the object to be weighed P. This is because the distance (pitch) between the objects to be weighed P is set to be equal to or greater than a predetermined distance. The conveyance speed of the take-in conveyor 11 is determined based on the minimum distance (minimum pitch) between the objects to be weighed P that is known in advance and is supplied from the previous stage (upstream side) to the inspection system 1.
- the control unit 80 uses the measurement result of the load cell 28 to check whether the weight of the object P conveyed by the weighing conveyor 21 is within the allowable weight range. (Whether it is the allowable minimum weight or more and the allowable maximum weight or less). If the weight of the object to be weighed P is within the allowable weight range, the control unit 80 as a part of the weight inspection apparatus 20 determines that the object to be weighed P has passed the inspection. On the other hand, when the weight of the object P being transported by the weighing conveyor 21 is outside the allowable weight range (when lighter than the allowable minimum weight or heavier than the allowable maximum weight), the control unit 80 It determines with the to-be-measured item P failing a test
- control unit 80 determines that the object P to be weighed is lighter than the allowable minimum weight when the object P being conveyed by the weighing conveyor 21 is rejected, or the object P to be weighed is It is judged whether it is heavier than the maximum allowable weight.
- the control unit 80 as a part of the sorting device 30 drives the cylinder 45 when the workpiece P determined to be acceptable based on the inspection result of the weight inspection device 20 is conveyed by the sorting conveyor 31. Without carrying out, the to-be-measured object P is conveyed to the front end part of the distribution conveyor 31.
- FIG. As a result of the inspection by the weight inspection apparatus 20, when the weighing object P determined to be unacceptable and the weight of the weighing object P is determined to be lighter than the allowable minimum weight is transported by the sorting conveyor 31, control is performed.
- the unit 80 drives the cylinder 45 of the sorting mechanism 40 disposed on the left side of the sorting conveyor 31, rotates the movable member 40 a, and drops the object P to the left side of the sorting conveyor 31.
- control unit 80 determines that the object to be weighed P determined to be unacceptable as a result of the inspection by the weight inspection apparatus 20 and that the weight of the object to be weighed P is heavier than the allowable maximum weight is the sorting conveyor 31.
- the cylinder 45 of the sorting mechanism 40 disposed on the right side of the sorting conveyor 31 is driven, the movable member 40a is rotated, and the object P is dropped to the right side of the sorting conveyor 31.
- the control unit 80 drives the cylinder 45 even when the weight of the object P being transported by the weighing conveyor motor 25 is being measured by the load cell 28.
- the movable member 40a is rotationally driven (by operating the electromagnetic valve 45c). Therefore, inspection efficiency is good.
- the balance member 43 suppresses the vibration of the arm member 42 in the vertical direction (in the axial direction of the rotating shaft 41), so that even if the movable member 40a is driven to rotate, the weighing accuracy of the load cell 28 It is hard to be adversely affected.
- the inspection system 1 includes a weight inspection device 20, a sorting device 30, and a frame 52 as a common frame.
- the weight inspection apparatus 20 includes a weighing conveyor 21 that conveys the object to be weighed P, and a load cell 28 as a measuring instrument for weighing the object to be weighed P conveyed by the weighing conveyor 21.
- the weight inspection apparatus 20 inspects the object to be weighed P using the measurement result of the load cell 28.
- the sorting apparatus 30 includes a sorting conveyor 31, a movable member 40a, and a cylinder 45 serving as a drive unit.
- the sorting conveyor 31 is disposed on the downstream side of the weighing conveyor 21.
- the movable member 40a comes into contact with the object to be measured P conveyed by the sorting conveyor 31, and changes the traveling direction of the object to be weighed P.
- the cylinder 45 is driven based on the inspection result of the weight inspection apparatus 20 so that the movable member 40a is brought into contact with the object P to be measured.
- the frame 52 supports the weighing conveyor 21, the load cell 28, and the movable member 40a.
- the weight inspection apparatus 20 and the distribution apparatus 30 are fixed to the frame 52 which is a common frame, the weight inspection apparatus 20 and the distribution apparatus 30 are. Compared to the case where each has an individual frame, the leg portion (around the base 51b) of the inspection system 1 can have a simple structure. As a result, the inspection system 1 that is compact and excellent in cleanability can be provided.
- the movable member 40 a includes a rotating shaft 41, an arm member 42, and a balance member 43.
- the rotating shaft 41 is supported by the frame 52 and is driven to rotate by a cylinder 45.
- the arm member 42 extends from the rotation shaft 41 in the radial direction of the rotation shaft 41, and contacts the object P when the rotation shaft 41 is driven to rotate by the cylinder 45.
- the balance member 43 extends from the rotation shaft 41 in the direction opposite to the arm member 42.
- the balance member 43 extending in the opposite direction to the arm member 42 is provided with respect to the rotation shaft 41, as described above, the vibration in the vertical direction of the arm member 42 (the axial direction of the rotation shaft 41) is suppressed and rotated.
- the vibration of the shaft 41 in the axial direction can be suppressed. Therefore, even if the weighing conveyor 21 and the load cell 28 and the rotating shaft 41 of the arm member 42 are supported by the common frame 52, the inspection accuracy of the weight inspection apparatus 20 (the measurement accuracy of the load cell 28) is hardly adversely affected. As a result, it is possible to provide an inspection system 1 that is excellent in cleanability while maintaining inspection accuracy and inspection efficiency (without increasing the measurement time of the weight inspection apparatus 20).
- the rotation shaft 41 extends in a direction perpendicular to the conveyance surface of the sorting conveyor 31.
- the arm member 42 and the balance member 43 rotate along a plane parallel to the conveyance surface of the sorting conveyor 31.
- the arm member 42 and the balance member 43 rotate along a plane parallel to the conveying surface of the sorting conveyor 31, the torsional moment acting on the rotary shaft 41 is increased.
- the balance member 43 it is possible to suppress vibration in the vertical direction of the arm member 42 (the axial direction of the rotation shaft 41) that occurs with the movement of the arm member 42. Can be suppressed. Therefore, even if the weighing conveyor 21 and the load cell 28 and the rotating shaft 41 of the arm member 42 are supported by the common frame 52, the inspection accuracy of the weight inspection apparatus 20 is hardly adversely affected. As a result, it is possible to provide an inspection system 1 that is excellent in cleanability while maintaining inspection accuracy and inspection efficiency.
- the rotating shaft 41 extends in a direction perpendicular to the transport surface of the weighing conveyor 21.
- the balance member 43 intersects a plane through which the center of gravity G1 of the arm member 42 passes when the rotation shaft 41 is driven to rotate by the cylinder 45.
- the balance member 43 is disposed so as to intersect the plane through which the center of gravity G1 of the arm member 42 passes, the arm member 42 and the balance member 43 are easily balanced on the rotary shaft 41. Therefore, it is possible to suppress the vibration in the vertical direction of the arm member 42 (the axial direction of the rotation shaft 41) that occurs with the rotation of the arm member 42, and to suppress the vibration of the rotation shaft 41 in the axial direction. In other words, the vibration in the direction perpendicular to the conveying surface of the weighing conveyor 21 of the rotating shaft 41 that is generated when the arm member 42 is rotated can be suppressed.
- the center of gravity G2 of the balance member 43 is disposed on a plane through which the center of gravity G1 of the arm member 42 passes when the rotary shaft 41 is rotationally driven by the cylinder 45.
- the arm member 42 and the balance member 43 are particularly easily balanced, and the axial vibration of the rotating shaft 41 that occurs with the rotation of the arm member 42 is particularly easily suppressed.
- an inspection system 1 that is excellent in cleanability while maintaining inspection accuracy and inspection efficiency.
- the balance member 43 is provided to suppress the vibration of the arm member 42 in the direction perpendicular to the conveyance surface of the weighing conveyor 21.
- the moment of inertia around the rotation axis of the arm member 42 and the balance member 43 is larger than the moment of inertia around the rotation axis 41 of the arm member 42 alone.
- the moment of inertia when the moment of inertia is increased, it is necessary to increase the driving force of the drive unit. Therefore, it is desirable that the moment of inertia is small.
- the inspection efficiency of the inspection system 1 can be improved as compared with the case where the balance member 43 is not provided. As a result, it is possible to provide an inspection system 1 that is excellent in cleanability while maintaining inspection accuracy and inspection efficiency.
- the product Q2 of the weight m2 of the balance member 43 and the distance r2 from the center of gravity G2 of the balance member 43 to the axis O of the rotating shaft 41 is the weight m1 of the arm member 42 and the arm member. It is determined so as to approach the product Q1 of the distance r1 from the center of gravity G1 of 42 to the axis O of the rotating shaft 41.
- the imbalance (unbalance) of the rotating shaft 41 can be easily eliminated, and the vibration in the vertical direction of the arm member 42 (the axial direction of the rotating shaft 41) generated with the rotation of the arm member 42 can be suppressed.
- the axial vibration of the rotating shaft 41 can be suppressed. That is, even if the weighing conveyor 21 and the load cell 28 and the rotating shaft 41 of the arm member 42 are supported by the common frame 52, the inspection accuracy of the weight inspection apparatus 20 is hardly adversely affected. As a result, it is possible to provide an inspection system 1 that is excellent in cleanability while maintaining inspection accuracy and inspection efficiency.
- the weight m2 of the balance member 43 is desirably 30% or more of the total of the weight m2 of the balance member 43 and the weight m1 of the arm member 42. More desirably, the weight m2 of the balance member 43 is 50% or more of the total of the weight m2 of the balance member 43 and the weight m1 of the arm member 42. In the inspection system 1 according to the present embodiment, the weight m2 of the balance member 43 is about 75% of the total of the weight m2 of the balance member 43 and the weight m1 of the arm member 42.
- the unbalance (unbalance) of the rotating shaft is easily eliminated, and the vertical direction of the arm member 42 (with the rotating shaft 41 of the rotating shaft 41) generated with the rotation of the arm member 42. (Axial direction) vibration can be suppressed, and axial rotation of the rotating shaft 41 can be suppressed. That is, even if the weighing conveyor 21 and the load cell 28 and the rotating shaft 41 of the arm member 42 are supported by the common frame 52, the inspection accuracy of the weight inspection apparatus 20 is hardly adversely affected. As a result, it is possible to provide an inspection system 1 that is excellent in cleanability while maintaining inspection accuracy and inspection efficiency.
- the inspection efficiency can be kept high. Since the balance member 43 suppresses the vibration of the arm member 42 in the vertical direction (in the axial direction of the rotary shaft 41), even if the movable member 40a is driven to rotate, the weighing accuracy of the load cell 28 is not adversely affected. Hateful.
- the frame 52 supports the sorting conveyor 31.
- the leg portion (around the base 51b) of the inspection system 1 can have a simple structure. As a result, the inspection system 1 that is compact and excellent in cleanability can be provided.
- the height of the weighing conveyor 21 and the sorting conveyor 31 can be increased once only by changing the mounting position of the frame 52 with respect to the column main body 51a.
- the cylinder 45 driven by compressed air is used as the drive unit, but the present invention is not limited to this.
- the drive unit may rotate the rotation shaft 41 with a motor.
- the sorting apparatus 30 conveys the object to be weighed P determined to be acceptable by the weight inspection apparatus 20 to the front end of the inspection system 1 by the distribution conveyor 31, and fails in the weight inspection apparatus 20.
- the determined objects to be weighed P are further divided into a weight that is lighter than the allowable minimum weight and a weight that is heavier than the allowable maximum weight by using the two distribution mechanisms 40, but this is limited to this. It is not a thing.
- the sorting apparatus 30 further uses the result of the foreign object inspection performed on the upstream side of the inspection system 1, and uses the distribution conveyor 31 to transfer the object P that has passed the weight inspection and the foreign object inspection to the front end of the inspection system 1.
- the two sorting mechanisms 40 are used to sort the object to be weighed P determined to be unacceptable as a result of foreign object inspection and the object to be weighed determined to be unacceptable as a result of weight inspection. May be.
- the vertical length L1 of the arm member 42 and the vertical length L2 of the balance member 43 are the same (see FIG. 7), but are not limited thereto.
- the length L2 ′ in the vertical direction of the balance member 43 ′ may be formed longer than the length L1 in the vertical direction of the arm member 42.
- the center of gravity G2 ′ of the balance member 43 ′ is disposed on a plane through which the center of gravity G1 of the arm member 42 passes when the rotary shaft 41 is rotationally driven by the cylinder 45.
- the shape of the frame 52 is formed in an H shape, but is not limited to this.
- the frame 52 may be formed in a shape suitable for supporting the load cell 28, the weighing conveyor 21, the movable member 40a, and the like.
- the shape of the sub-frame 62 is not limited to the H-shape, and may be formed in a shape suitable for supporting the take-in conveyor 11, the sorting conveyor 31, and the like.
- control part 80 made the conveyance speed of the conveyors 11, 21, and 31 the same, it is not limited to this. However, as described above, it is desirable that the conveyance speed be the same so as not to adversely affect the weighing accuracy of the load cell 28 of the weight inspection apparatus 20.
- control unit 80 has described that all the conveyor motors 15, 25, and 35 are stopped when a problem occurs in the subsequent (downstream) process.
- the unit 80 may individually control the conveyor motors 15, 25, and 35. For example, while the weighing conveyor 21 is performing an operation for removing the object P to be measured, which is determined to be unacceptable by the weight inspection apparatus 20, for some reason, the next object to be weighed is being removed.
- the control unit 80 may control the movement of the weighing conveyor motor 25 to stop.
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Abstract
Description
本実施形態に係る検査システム1は、被計量物Pの重量検査を行い、重量検査の結果に応じて、被計量物Pを振り分けるシステムである。
以下に、検査システム1の取込装置10、重量検査装置20、振分装置30、支柱50、フレーム52、及び、制御部80について詳細に説明する。
取込装置10は、上流側から被計量物Pを受け付け、検査システム1に取り込む装置である。取込装置10は、図1のように、被計量物Pを搬送する取込コンベア11を主に有する。
取込コンベア11は、図1及び図2に示すように、主に、取込コンベアフレーム12と、駆動ローラ13a及び従動ローラ13bと、平ベルト14と、取込コンベア用モータ15とを有する。
重量検査装置20は、図1及び図2に示すように、計量コンベア21と、ロードセル28とを有する。計量コンベア21は、被計量物Pを搬送するコンベアである。計量コンベア21は、図1のように、取込コンベア11の下流側に配されている。ロードセル28は、計量器の一例である。ロードセル28は、計量コンベア21により搬送される被計量物Pの重量を計量する。重量検査装置20は、ロードセル28の計量結果を用いて、被計量物Pの検査を行う。より具体的には、重量検査装置20は、ロードセル28により計量された被計量物Pの重量が、許容重量範囲内であるか否かを検査する。被計量物Pの重量が許容重量範囲内であるとは、言い換えれば、被計量物Pの重量が、許容最小重量以上で、かつ、許容最大重量以下であることを意味する。
計量コンベア21は、図1及び図2に示すように、主に、計量コンベアフレーム22と、駆動ローラ23a及び従動ローラ23bと、平ベルト24と、計量コンベア用モータ25とを有する。
ロードセル28は、計量コンベア21の下方に配されたケース26の内部に収容されている(図3参照)。前述したように、ケース26には、計量コンベア21の駆動ローラ23aを駆動する計量コンベア用モータ25も収容されている。図3では、計量コンベア用モータ25は省略されている。
振分装置30は、図1及び図2に示すように、振分コンベア31と、振分機構40と、傾斜板38を有する。振分コンベア31は、被計量物Pを搬送するコンベアである。振分コンベア31は、図1のように、計量コンベア21の下流側に配されている。振分機構40は、重量検査装置20の検査の結果、不合格となった被計量物Pの進行方向を変化させて、不合格となった被計量物Pを振分コンベア31から取り除く。傾斜板38は、振分コンベア31の左右両側に設けられた部材である。傾斜板38は、振分コンベア31から下方に傾斜するように形成されている。傾斜板38は、振分機構40により振分コンベア31から取り除かれた被計量物Pを、図示しない不合格品搬送コンベアに導くための部材である。
振分コンベア31は、図2及び図4に示すように、主に、振分コンベアフレーム32と、駆動ローラ33a及び従動ローラ33bと、平ベルト34と、振分コンベア用モータ35とを有する。
振分機構40は、後述するアーム部材42を動かすことで被計量物Pの振り分けを行う、いわゆるアーム式の振分機構である。振分機構40の動きは、振分装置30の一部としての制御部80に制御される。
可動部材40aは、回転軸41、アーム部材42、バランス部材43、及び、連結ピン44を含む。
回転軸41は、シリンダ45により回転駆動される軸である。回転軸41は、図5のように、ハウジング40bに固定された2つの軸受48により軸支されている。回転軸41は、振分コンベア31の前側端部近傍、言い換えれば、検査システム1の前側端部近傍に設けられている。回転軸41と、回転軸41に取り付けられたアーム部材42及びバランス部材43とは、軸受48を介して、ハウジング40bにより支持されている。後述するように、ハウジング40bは、フレーム52に固定されるレール部材61により支持されているため、回転軸41は、ハウジング40b及びレール部材61を介して、フレーム52により支持される。シリンダ45が駆動されることで、回転軸41がどのように駆動されるかについては後述する。
アーム部材42は、図5のように、回転軸41の半径方向に延びるように、回転軸41に連結されている。重量検査装置20による検査の結果、合格と判定された被計量物Pが振分コンベア31により搬送される際には、アーム部材42は、振分コンベア31の搬送方向(図1の矢印Aの方向)に延びるように配される(図6の二点破線参照)。一方、重量検査装置20による検査の結果、不合格と判定された被計量物Pであって、被計量物Pの重量が許容最小重量より軽いと判断された被計量物Pが、振分コンベア31により搬送される場合には、振分コンベア31の左側に配される振分機構40の回転軸41がシリンダ45により駆動され、アーム部材42は、被計量物Pの搬送を妨げる位置に動かされる(図6の実線参照)。その結果、アーム部材42は被計量物Pに接触し、上述のように被計量物Pは、振分コンベア31から取り除かれる。
バランス部材43は、図5のように、アーム部材42と逆方向に延びるように、回転軸41に連結されている。バランス部材43は、アーム部材42の動きに応じて発生する、回転軸41の、軸方向の振動を抑制するために設けられる。言い換えれば、バランス部材43は、計量コンベア21の搬送面に垂直な方向の、アーム部材42の振動を抑制するために設けられている。特に、バランス部材43は、アーム部材42が回転開始時、又は、アーム部材42の回転停止時に発生する、計量コンベア21の搬送面に垂直な方向の、アーム部材42の振動を抑制するために設けられている。
連結ピン44は、回転軸41とバランス部材43とを連結するための部材である。連結ピン44は、図5のように、回転軸41に回転軸41を半径方向(水平方向)に貫通するように形成された穴と、バランス部材43を水平方向に貫通するように形成された穴とを貫き通すように挿入されている。
シリンダ45は、駆動部の一例である。シリンダ45は、重量検査装置20による検査の結果、不合格であった被計量物Pが振分コンベア31により搬送される時に、可動部材40aをその被計量物Pに接触させるように駆動する。言い換えれば、シリンダ45は、重量検査装置20による検査の結果、不合格であった被計量物Pが振分コンベア31により搬送される時に、アーム部材42をその被計量物Pに接触させるように駆動する。
ハウジング40bは、シリンダ45を収容する部材である。
支柱50は、後述するフレーム52を支持する部材である。支柱50は、図1のように、支柱本体51aと、ベース51bと、を有する。
フレーム52は、共通フレームの一例である。取込コンベア11、計量コンベア21、振分コンベア31、ロードセル28、及び、可動部材40aは、フレーム52により支持される。なお、ここでのフレーム52により支持されるとは、フレーム52に直接的に支持される場合だけではなく、フレーム52に支持される他の部材を介して間接的に支持される場合を含む。
制御部80は、図2のように、取込コンベア用モータ15、計量コンベア用モータ25、振分コンベア用モータ35、ロードセル28、及び、電磁弁45cを含む検査システム1の各部に接続されている。なお、電磁弁45cは、シリンダ45を駆動するための圧縮空気の供給/停止を制御するための弁である。
(3-1)
本実施形態に係る検査システム1は、重量検査装置20と、振分装置30と、共通フレームとしてのフレーム52と、を備える。重量検査装置20は、被計量物Pを搬送する計量コンベア21と、計量コンベア21により搬送される被計量物Pを計量する計量器としてのロードセル28と、を有する。重量検査装置20は、ロードセル28の計量結果を用いて被計量物Pの検査を行う。振分装置30は、振分コンベア31と、可動部材40aと、駆動部としてのシリンダ45と、を有する。振分コンベア31は、計量コンベア21の下流側に配される。可動部材40aは、振分コンベア31により搬送される被計量物Pに接触し被計量物Pの進行方向を変化させる。シリンダ45は、重量検査装置20の検査結果に基づいて可動部材40aを被計量物Pに接触させるように駆動する。フレーム52は、計量コンベア21、ロードセル28、及び可動部材40aを支持する。
本実施形態に係る検査システム1では、可動部材40aは、回転軸41と、アーム部材42と、バランス部材43と、を含む。回転軸41は、フレーム52に支持され、シリンダ45により回転駆動される。アーム部材42は、回転軸41から回転軸41の半径方向に延び、回転軸41がシリンダ45により回転駆動された時に被計量物Pに接触する。バランス部材43は、回転軸41からアーム部材42とは逆方向に延びる。
本実施形態に係る検査システム1では、回転軸41は、振分コンベア31の搬送面に垂直な方向に延びる。アーム部材42及びバランス部材43は、振分コンベア31の搬送面に平行な面に沿って回転する。
本実施形態に係る検査システム1では、回転軸41は、計量コンベア21の搬送面に垂直な方向に延びる。バランス部材43は、回転軸41がシリンダ45により回転駆動される時にアーム部材42の重心G1が通過する平面と交わる。
本実施形態に係る検査システム1では、バランス部材43は、アーム部材42の、計量コンベア21の搬送面に垂直な方向の振動を抑制するために設けられる。
本実施形態に係る検査システム1では、アーム部材42及びバランス部材43の回転軸まわりの慣性モーメントは、アーム部材42だけの回転軸41まわりの慣性モーメントに比べて大きい。
本実施形態に係る検査システム1では、バランス部材43の重量m2とバランス部材43の重心G2から回転軸41の軸心Oまでの距離r2との積Q2は、アーム部材42の重量m1とアーム部材42の重心G1から回転軸41の軸心Oまでの距離r1との積Q1に、近づくように決定される。
バランス部材43の重量m2は、バランス部材43の重量m2とアーム部材42の重量m1との合計の30%以上であることが望ましい。より望ましくは、バランス部材43の重量m2は、バランス部材43の重量m2とアーム部材42の重量m1との合計の50%以上であることが望ましい。本実施形態に係る検査システム1では、バランス部材43の重量m2は、バランス部材43の重量m2とアーム部材42の重量m1との合計の約75%である。
本実施形態に係る検査システム1では、ロードセル28により被計量物Pの計量されるタイミングと、シリンダ45により回転軸41の駆動されるタイミングとが重複する。
本実施形態に係る検査システム1では、フレーム52は、振分コンベア31を支持する。
以下に本実施形態の変形例を示す。なお、複数の変形例を適宜組み合わせてもよい。
上記実施形態の検査システム1では、取込装置10、重量検査装置20、振分装置30が、共通のフレーム52に支持されているが、これに限定されているものではない。例えば、取込装置10のない検査システム1であってもよい。
上記実施形態では、駆動部として圧縮空気により駆動されるシリンダ45が使用されているが、これに限定されるものではない。例えば、駆動部は、モータにより回転軸41を回転させるものであってもよい。
上記実施形態では、振分装置30は、重量検査装置20で合格と判定された被計量物Pを振分コンベア31により検査システム1の前方端部まで搬送し、重量検査装置20で不合格と判定された被計量物Pを、2つの振分機構40を用いて、更に重量が許容最小重量より軽いものと、許容最大重量よりも重いものと、に振り分けているが、これに限定されるものではない。
上記実施形態では、アーム部材42の上下方向の長さL1と、バランス部材43の上下方向の長さL2とは同一であるが(図7参照)、これに限定されるものではない。例えば、図10のように、バランス部材43’の上下方向の長さL2’は、アーム部材42の上下方向の長さL1よりも長く形成されてもよい。ただし、この場合にも、バランス部材43’の重心G2’は、回転軸41がシリンダ45により回転駆動されるときに、アーム部材42の重心G1が通過する平面上に配置されることが望ましい。
上記実施形態では、重量検査装置20により不合格と判定された被計量物Pは、振分装置30により振り分けられ、その後不合格品搬送コンベアに搬送されるが、これに限定されるものではない。例えば、重量検査装置20により不合格と判定された被計量物Pは、振分装置30により振り分けられ、不合格品回収箱に導かれてもよい。
上記実施形態では、フレーム52は、第1部材53と第2部材54とから構成されるが、これに限定されるものではない。例えば、フレーム52は、一体の部材として形成されてもよい。サブフレーム62についても同様である。
上記実施形態では、制御部80は、コンベア11,21,31の搬送速度を同一としたが、これに限定されるものでない。ただし、上記のように、重量検査装置20のロードセル28の計量精度に悪影響を与えないように、搬送速度は同一であることが望ましい。
20 重量検査装置
21 計量コンベア
28 ロードセル(計量器)
30 振分装置
31 振分コンベア
40a 可動部材
41 回転軸
42 アーム部材
43 バランス部材
45 シリンダ(駆動部)
52 フレーム(共通フレーム)
G1 アーム部材の重心
G2 バランス部材の重心
m1 アーム部材の重量
m2 バランス部材の重量
O 回転軸の軸心
P 被計量物
r1 アーム部材の重心から回転軸の軸心までの距離
r2 バランス部材の重心から回転軸の軸心までの距離
Claims (12)
- 被計量物を搬送する計量コンベアと、前記計量コンベアにより搬送される被計量物を計量する計量器と、を有し、前記計量器の計量結果を用いて被計量物の検査を行う重量検査装置と、
前記計量コンベアの下流側に配される振分コンベアと、前記振分コンベアにより搬送される被計量物に接触し被計量物の進行方向を変化させる可動部材と、前記重量検査装置の検査結果に基づいて前記可動部材を被計量物に接触させるように駆動する駆動部と、を有する振分装置と、
前記計量コンベア、前記計量器、及び前記可動部材を支持する共通フレームと、
を備えた検査システム。 - 前記可動部材は、
前記共通フレームに支持され、前記駆動部により回転駆動される回転軸と、
前記回転軸から前記回転軸の半径方向に延び、前記回転軸が前記駆動部により回転駆動された時に被計量物に接触するアーム部材と、
前記回転軸から前記アーム部材とは逆方向に延びるバランス部材と、を含む、
請求項1に記載の検査システム。 - 前記回転軸は、前記振分コンベアの搬送面に垂直な方向に延び、
前記アーム部材及び前記バランス部材は、前記振分コンベアの前記搬送面に平行な面に沿って回転する、
請求項2に記載の検査システム。 - 前記回転軸は、前記計量コンベアの搬送面に垂直な方向に延び、
前記バランス部材は、前記回転軸が前記駆動部により回転駆動される時に前記アーム部材の重心が通過する平面と交わる、
請求項2又は3に記載の検査システム。 - 前記バランス部材の重心は、前記回転軸が前記駆動部により回転駆動される時に前記アーム部材の重心が通過する平面上に配置される、
請求項4に記載の検査システム。 - 前記バランス部材は、前記アーム部材の、前記計量コンベアの搬送面に垂直な方向の振動を抑制するために設けられる、
請求項2から5のいずれか1項に記載の検査システム。 - 前記アーム部材及び前記バランス部材の前記回転軸まわりの慣性モーメントは、前記アーム部材だけの前記回転軸まわりの慣性モーメントに比べて大きい、
請求項2から6のいずれか1項に記載の検査システム。 - 前記バランス部材の重量と、前記バランス部材の重心から前記回転軸の軸心までの距離と、の積は、
前記アーム部材の重量と、前記アーム部材の重心から前記回転軸の前記軸心までの距離と、の積に近づくように決定される
請求項2から7のいずれか1項に記載の検査システム。 - 前記バランス部材の重量は、前記バランス部材の重量と前記アーム部材の重量との合計の30%以上である、
請求項2から8のいずれか1項に記載の検査システム。 - 前記バランス部材の重量は、前記バランス部材の重量と前記アーム部材の重量との合計の50%以上である、
請求項9に記載の検査システム。 - 前記計量器により被計量物の計量されるタイミングと、前記駆動部により前記回転軸の駆動されるタイミングとは、少なくとも一部が重複する、
請求項2から10のいずれか1項に記載の検査システム。 - 前記共通フレームは、前記振分コンベアを更に支持する、
請求項1から11のいずれか1項に記載の検査システム。
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CN109382328A (zh) * | 2017-08-14 | 2019-02-26 | 中山天贸电池有限公司 | 一种锂离子电池装盒自动称重分选装置 |
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CN117733827A (zh) * | 2024-02-20 | 2024-03-22 | 成都工业职业技术学院 | 一种用于夹持方形电池的换向夹持手臂及夹持换向方法 |
CN117733827B (zh) * | 2024-02-20 | 2024-04-26 | 成都工业职业技术学院 | 一种用于夹持方形电池的换向夹持手臂及夹持换向方法 |
Also Published As
Publication number | Publication date |
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CN204817227U (zh) | 2015-12-02 |
JP6062745B2 (ja) | 2017-01-18 |
JP2014137309A (ja) | 2014-07-28 |
DE212013000273U1 (de) | 2015-08-26 |
US20150352596A1 (en) | 2015-12-10 |
US9522414B2 (en) | 2016-12-20 |
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