JP6698253B2 - Weighing device - Google Patents

Description

  The present invention relates to a weighing device for adjusting an object to be weighed to a desired weight.

  For example, long vegetables such as chive, leeks, and spinach are adjusted in weight according to the standard (hereinafter, referred to as “measurement”) to form a bundle and shipped. In the work of weighing long vegetables, it is troublesome for an operator to put the long vegetables on a balance one by one and check the weight and adjust the weight.

  Patent Document 1 discloses a grade selection device that measures the weight of an object such as a flower or a long vegetable and performs grade selection according to weight. The grade selection device includes a first conveyor that conveys an object, a second conveyor that conveys the object and performs grade selection, and a weight measurement system that measures the weight of the object between the first conveyor and the second conveyor. Have and. This weighing system includes a weighing scale having a receiving part, a fixed arm for receiving an object from the first conveyor, a moving arm for transferring the object from the fixed arm to the receiving part of the weighing scale, and a scooping of the object from the receiving part. And a pick-up arm for transferring to a second conveyor.

JP, 2005-78868, A

  In the technique of Patent Document 1, the object is sequentially moved to the first conveyor, the fixed arm, the moving arm, the weighing scale, the pick-up arm, and the second conveyor, so the number of times of delivery is large, and the object is scratched each time it is delivered. There is a risk of being attached. In addition, since the object is sequentially delivered to different elements, the device becomes large and complicated.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a metering device capable of weighing an object to be weighed with a simple configuration.

  In order to solve the above problems, a metering device according to an aspect of the present invention includes a plurality of mounting parts for mounting an object to be weighed, a first driving part for moving the plurality of mounting parts, A weighing unit that has a pedestal portion on which a weighing object can be placed, and that weighs an object to be weighed placed on the pedestal portion, a second driving unit that moves the pedestal portion or the loading unit, and a first driving unit. And controlling the drive of the second drive unit to position the pedestal part above the placement part to cause the weighing unit to weigh the object to be weighed, and based on each weight of the object to be weighed acquired from the weighing unit, a predetermined value is determined. And a control unit that determines a combination of the objects to be weighed placed on the placing unit that exceeds the target weight. The first driving unit slides the plurality of mounting units by driving to align any one of the mounting units with the weighing unit, and the second driving unit drives to move the pedestal unit and the mounting unit relative to each other. By moving, the objects to be weighed on the pedestal part and the mounting part are delivered.

  According to this aspect, the objects to be weighed placed on each of the plurality of mounting parts can be weighed by the first driving unit and the second driving unit, and the objects to be weighed can be combined and weighed. In addition, since the object to be weighed can be weighed by passing the placing section and the weighing section, the number of times the object to be weighed can be passed.

  According to the present invention, it is possible to provide a weighing device capable of weighing an object to be weighed with a simple configuration.

It is a perspective view of the metering binding device of an example. It is a side view of the metering binding device of an example. It is a top view of the metering binding device of an example. It is a partial perspective view of a mounting part. It is a figure for demonstrating a measurement part. It is a figure for demonstrating the functional structure of a control part. It is a figure for demonstrating the operation|movement which measures a long vegetable in a weighing device. It is a figure for demonstrating the control which takes out the long vegetable according to the combination of the combination calculation part. It is a figure which shows the flowchart of the metering process by a metering device. It is a figure for demonstrating the operation|movement which measures the long vegetables of a modification.

  FIG. 1 is a perspective view of a metering and binding device 1 of the embodiment. FIG. 2 is a side view of the metering and binding device 1 of the embodiment. 3 is a top view of the metering and binding device 1 of the embodiment. The metering and binding device 1 includes a metering device 10 and a binding device 12.

  The weighing device 10 adjusts long vegetables such as Chinese chive and leeks as desired objects to be weighed. When the worker puts the divided long vegetables into the weighing device 10, the weighing device 10 makes the divided long vegetables into a desired weight by an optimal combination. The bundling device 12 receives and binds the long vegetables measured by the weighing device 10. Long vegetables are bundled and shipped. By arranging the metering device 10 side by side with the ready-made binding device 12, the metering function of the metering device 10 and the binding function of the binding device 12 can be linked.

  The metering device 10 includes a base 19, a mounting unit 20, a weighing unit 22, a slide driving unit 24, a weighing driving unit 26, a rotation driving unit 28, a control unit 30, a display unit 32, a power switch 34, a rail unit 36, A fixed portion 37, a slide portion 38, a guide portion 40, and a guide support portion 42 are provided.

  The base 19 is fixed to the floor and supports other members of the metering device 10. The fixed portion 37 is fixed to the base 19 and supports the slide portion 38. The slide portion 38 is supported by the fixed portion 37 so as to be horizontally slidable along the rail portion 36.

  A plurality of the placing units 20 are provided on the slide unit 38, and the long vegetables that are divided into small portions are placed on each of the placing units 20. The plurality of mounting parts 20 are arranged side by side in the horizontal direction, and are slidable in the horizontal direction together with the slide part 38. The slide portion 38 is slidable so that any of the mounting portions 20 can be positioned vertically above the weighing portion 22. As a result, long vegetables can be delivered by the placing unit 20 and the weighing unit 22. Further, the slide portion 38 is slidable so that any one of the mounting portions 20 can be positioned vertically above the container of the binding device 12. As a result, long vegetables can be transferred from the placing unit 20 to the container of the binding device 12. The mounting portion 20 can be moved above the binding device 12 by sliding. Here, the mounting portion 20 will be described with reference to a new drawing.

  FIG. 4 is a partial perspective view of the mounting portion 20. FIG. 4 shows the side supported by the slide portion 38. The slide portion 38 is omitted in FIG. The mounting portion 20 has a shaft portion 20a, a plurality of protruding portions 20b, an elastic portion 20c, a first stopper portion 20d, a second stopper portion 20e, and a rotation receiving portion 20f.

  One end of the shaft portion 20a is rotatably supported by the slide portion 38 and is provided along the horizontal direction, and all the shaft portions 20a are provided in parallel. The overhanging portion 20b is a cantilever piece that projects from the shaft portion 20a along the sliding direction, that is, along the horizontal direction, and has a substantially U-shape when viewed in the axial direction of the shaft portion 20a as shown in FIG. It is formed by bending. The plurality of overhanging portions 20b formed on one shaft portion 20a are spaced apart at equal intervals, each overhanging in the same direction, and are formed in a comb tooth shape. Note that the plurality of overhanging portions 20b may not be separated at equal intervals as long as they are located apart from each other.

  The elastic portion 20c biases the mounting portion 20 in a direction in which the projecting portion 20b is in a horizontal posture (clockwise in FIG. 4). The first stopper portion 20d is provided to stop the axial rotation of the mounting portion 20 against the bias of the elastic portion 20c, and hits the slide portion 38 to stop the axial rotation. As a result, the posture in which the plurality of overhanging portions 20b overhang in the horizontal direction is maintained, and long vegetables can be placed. When rotating the overhanging portion 20b downward from the horizontal position, the rotation driving portion 28 pushes the rotation receiving portion 20f provided at a position eccentric to the central axis of the shaft portion 20a. Details will be described later.

  By forming the placing portion 20 in the shape of a comb, the contact area can be reduced when long vegetables are placed on the plurality of overhanging portions 20b. Since the long vegetables are placed lying down along the shaft portion 20a, the height in the vertical direction can be made smaller than the case where the long vegetables are held upright. It will be easy. The number of the mounting portions 20 is preferably 6 or more from the viewpoint of easy combination, and 12 or less from the viewpoint of miniaturization.

  Returning to FIG. The weighing unit 22 weighs the long vegetables placed on the placing unit 20 located vertically above the weighing unit 22. The weighing unit 22 does not move in the horizontal direction like the placing unit 20, but a part of the weighing unit 22 can move in the vertical direction to receive and weigh the long vegetables placed on the placing unit 20. Here, the weighing unit 22 will be described with reference to a new drawing.

  FIG. 5 is a diagram for explaining the weighing unit 22. The metering drive unit 26 is also shown in FIG. The weighing unit 22 has a support unit 22a and a plurality of pedestals 22b, and the plurality of pedestals 22b are formed in a comb tooth shape. The weighing unit 22 also has a weighing sensor 22c, a base unit 22d, a rail unit 22e, and a holding unit 22f.

  The support portion 22a is arranged in parallel with the shaft portion 20a of the mounting portion 20, and the pedestal portion 22b is provided above the support portion 22a. The pedestal portion 22b is formed so as to project bidirectionally from the support portion 22a in the sliding direction, that is, along the horizontal direction, and is bent in a substantially U shape when viewed in the axial direction of the support portion 22a. As will be described later, the metering drive unit 26 drives and the pedestal portion 22b moves up past the overhanging portion 20b and rises, but the support portion 22a does not contact the overhanging portion 20b even if the pedestal portion 22b rises. Is spaced apart from the pedestal portion 22b. In addition, in the present embodiment, the plurality of pedestals 22b are located at equal intervals, but they may not be separated at equal intervals as long as they are located apart. Further, although the pedestal portion 22b juts out in the left-right direction from the support portion 22a, it may be supported in a cantilever manner like the mounting portion 20. The weighing unit 22 detects the weight of the object to be weighed placed on the pedestal unit 22b by a built-in weighing sensor 22c.

  The other end of the support portion 22a is connected to the weighing sensor 22c via a connecting member. The weighing sensor 22c is held by a holding portion 22f and is attached to a base portion 22d fixed to the base 19 via a rail portion 22e that is vertically slidable. The pedestal portion 22b, the support portion 22a, the weighing sensor 22c, and the holding portion 22f are slid in the vertical direction by driving the weighing driving portion 26 attached to the base portion 22d and connected to the holding portion 22f.

  As shown in FIG. 3, when viewed from above, the plurality of pedestal portions 22b are respectively located between the plurality of overhanging portions 20b. Accordingly, when the pedestal part 22b moves in the vertical direction or when the mounting part 20 rotates, the mounting part 20 and the weighing part 22 can be arranged so as not to interfere with each other.

  Returning to FIG. The slide drive unit 24 is driven by the control of the control unit 30 to slide the plurality of placement units 20 together with the slide unit 38 in the horizontal direction. The slide drive unit 24 functions as a first drive unit that moves the plurality of placement units 20. The slide driving section 24 is provided on the fixed section 37 along the longitudinal direction of the rail section 36. The slide drive unit 24 has a pulley 24a and a timing belt 24b. The pulley 24a is rotated by a motor drive source and drives the timing belt 24b. One end of the timing belt 24b is fixed to the slide portion 38 and moves according to the rotation of the pulley 24a. In addition, although the mounting portion 20 is slid in the horizontal direction in the embodiment, the present invention is not limited to this mode, and the sliding direction may be inclined in the horizontal direction in a modified example.

  As described above, the weighing drive unit 26 is fixed to the base 19, and is driven by the control of the control unit 30 to move the support unit 22a and the pedestal unit 22b of the weighing unit 22 in the vertical direction. The weighing driving unit 26 functions as a second driving unit that moves the pedestal portion 22b, and relatively moves the pedestal portion 22b and the mounting portion 20 by driving, so that the weighing object of the pedestal portion 22b and the mounting portion 20 is moved. Have them hand over. By moving the pedestal portion 22b upward, receiving and weighing the long vegetables placed on the placing portion 20, and moving the pedestal portion 22b downward and returning the received long vegetables to the placing portion 20. You can

  The rotation drive unit 28 is driven by the control of the control unit 30 to rotate the mounting unit 20 about its axis. The rotation driving unit 28 is provided on the fixing unit 37 and is provided at a position vertically above the container of the binding device 12, that is, at a discharging position for discharging the long vegetables placed on the placing unit 20. The rotation drive unit 28 has an action unit 28a, and the action unit 28a rotationally drives the rotation receiving unit 20f of the mounting unit 20 to rotate the shaft unit 20a of the mounting unit 20. By rotating the mounting portion 20 about its axis, the object to be weighed placed on the mounting portion 20 can be delivered to the lower container. Further, when the placing part 20 is in the horizontal posture, the rotation receiving part 20f is arranged below the acting part 28a, so that when the placing part 20 slides, it does not interfere with the acting part 28a. .. In this embodiment, a plurality (two) of rotation driving units 28 are provided. This can speed up the discharge.

  The control unit 30 controls the driving of the slide drive unit 24, the metering drive unit 26, and the rotation drive unit 28. The control unit 30 controls the drive of the slide driving unit 24 and the weighing driving unit 26 to cause the weighing unit 22 to weigh the weight of the weighing target placed on the mounting unit 20, and to obtain the weighing target acquired from the weighing unit 22. A combination of objects to be weighed placed on the placing part 20 that exceeds a predetermined target weight is determined based on each weight of the objects. The details of the control unit 30 will be described later.

  In addition to the set weight, the display unit 32 displays the weight of the objects to be weighed acquired from the weighing unit 22, the selected combination, the combined weight, and the like. The display unit 32 may also display information instructing the operator to place the object to be weighed on the placing unit 20. The power switch 34 turns on or off the drive of the metering device 10.

  The guide unit 40 guides the movement of the objects to be weighed when the objects to be weighed are transferred from the placing unit 20 to the binding device 12. The guide portions 40 are formed in a comb shape or a plate shape, and are provided in a pair so as to face each other in the horizontal direction, and are arranged so as not to interfere with the rotational movement of the mounting portion 20. The guide portion 40 is supported by the fixed guide support portion 42. The guide support portion 42 is fixed to the base 19 or the fixed portion 37.

  The binding device 12 has a container 44, a conveyor 46, and a binding unit (not shown). A plurality of containers 44 are provided on the conveyor 46, and have a substantially U-shaped cross section when viewed from the side. The container 44 is opened upward and receives the long vegetables delivered from the placing unit 20. In the long vegetables, the portion to be bound protrudes from the container 44.

  The conveyor 46 moves the container 44 to the bundling unit. The binding unit binds the long vegetables placed in the container 44 with a band such as tape or rubber. The driving of the conveyor 46 may be controlled by the control unit 30 of the metering device 10.

  FIG. 6 is a diagram for explaining the functional configuration of the control unit 30. The control unit 30 includes a weight acquisition unit 52, a weight storage unit 54, a combination calculation unit 56, and a drive control unit 58. In FIG. 6, each element described as a functional block that performs various processes can be configured by a circuit block, a memory, and other LSI in terms of hardware, and loaded in the memory in terms of software. It is realized by a program. Therefore, it is understood by those skilled in the art that these functional blocks can be realized in various forms by only hardware, only software, or a combination thereof, and the present invention is not limited to them.

  The weight acquisition unit 52 acquires the weight of the long vegetables placed on the pedestal 22b from the weighing sensor 22c. The weight storage unit 54 receives the weight of the long vegetables from the weight acquisition unit 52 and the identification information of the placing unit 20 having the long vegetables weighed by the weighing unit 22 from the drive control unit 58, and the long vegetables. And the identification information of the mounting portion 20 are stored in association with each other.

  When the long vegetables are placed on each of the placing units 20, the combination calculating unit 56 calculates the optimum combination based on the weights of the long vegetables stored in the weight storage unit 54. Specifically, the combination calculation unit 56 determines a combination of weights of the long vegetables that exceeds a predetermined target weight and becomes the lightest. The predetermined target weight is, for example, 100 grams for Chinese chive, and the combination calculation unit 56 calculates a combination that exceeds 100 grams and has a weight closest to 100 grams. The combination calculation unit 56 outputs the combination of the identification information of the mounting unit 20 associated with the combined weight to the drive control unit 58.

  In the modification combination method, the combination calculator 56 determines a combination of weights of the long vegetables that exceed a predetermined first target weight and are within a predetermined second target weight. That is, the combination calculation unit 56 calculates the combination of weights that fall within the range of 100 grams to 110 grams for, for example, Chinese chive. According to this modification, a plurality of weight combinations that fall within a predetermined range can be calculated at the same time. By sequentially discharging the calculated plurality of combinations, it is possible to speed up the work.

  The drive control unit 58 controls the drive of the slide drive unit 24, the metering drive unit 26, and the rotation drive unit 28. The drive control unit 58 executes the control of weighing the long vegetables and the control of taking out the long vegetables according to the combination in one adjustment control. The one-time metering control is a control in which long vegetables placed on the placing unit 20 are subdivided and combined into one long vegetable.

  The drive control unit 58 controls the weighing of the long vegetables when there is the placing unit 20 on which the long vegetables are not placed or is not weighed, that is, the weight is not stored in the weight storage unit 54. When the mounting portion 20 is provided, the slide driving portion 24 is driven to slide the mounting portion 20 to a position vertically above the weighing portion 22 for alignment. Here, a position vertically above the weighing unit 22 is referred to as a weighing position.

  The drive control unit 58 aligns the placing unit 20 with the weighing position, drives the weighing driving unit 26, and moves the pedestal unit 22b of the weighing unit 22 above the overhanging unit 20b of the placing unit 20. When the weighing sensor 22c detects a weight equal to or more than a predetermined threshold value, the weighing unit 22 determines that a long vegetable is placed, weighs the long vegetable, and the weighed weight of the placing unit 20 is measured. It is stored in the weight storage unit 54 in association with the identification information, and a weighing completion signal indicating that weighing is completed is sent to the drive control unit 58. When the drive control unit 58 receives the measurement completion signal, the drive control unit 58 moves the pedestal portion 22b downward and returns it to the original position. This ends the control of weighing the long vegetables, but if there is still the rest 20 that has not been weighed, that is, if there is a rest 20 in which the weight is not stored in the weight storage unit 54, The control of weighing the long vegetables for each of the placing units 20 is repeated until the weight of the long vegetables of the placing unit 20 is stored.

  As described above, the weighing device 10 executes the weighing control on the placing section 20 in which the weight of the long vegetables is not stored in the weight storing section 54, so that the placing section 20 and the pedestal section 22b receive the weighing control. It is possible to eliminate the need for a sensor that detects whether or not long vegetables are placed.

  When the drive control unit 58 receives the combination of the identification information of the placing unit 20 from the combination calculation unit 56, the drive control unit 58 executes the control of taking out the combined long vegetables. The drive control unit 58 slides the placing unit 20 corresponding to the identification information by driving the slide driving unit 24 to the upper side of the container 44 by controlling the slide driving unit 24 to take out the long vegetables according to the combination, and the placing unit 20 and the container 44. Are aligned, and the placing unit 20 is axially rotated by the rotation driving unit 28 to transfer the long vegetables to the container 44. The drive control unit 58 repeats the operation of transferring the long vegetables to the container 44 for each mounting unit 20 according to the identification information, transfers the measured long vegetables to the container 44, and performs one-time weighing control. To finish. The weight storage unit 54 resets the weight corresponding to the placing unit 20 from which the long vegetables have been taken out.

  When the drive control unit 58 finishes the control of taking out the long vegetables into the container 44, the drive control unit 58 again executes the control of weighing the long vegetables with respect to the placing unit 20 from which the long vegetables have been taken out, and repeats the metering control. .. The operation of the metering device 10 will be described in detail with reference to new drawings.

  FIG. 7: is a figure for demonstrating the operation|movement which measures the long vegetable in the weighing device 10. FIG. FIG. 7A to FIG. 7D show an operation of weighing long vegetables in chronological order with the placing unit 20 and the weighing unit 22 viewed in the axial direction. In addition, in FIG. 7, the description is simplified by setting the number of mounting portions to five, and each mounting portion is arranged in order from the left side to the first mounting portion 201, the second mounting portion 202, and the third mounting portion. 203, the 4th mounting part 204, and the 5th mounting part 205, and when these are not distinguished, they are only called the mounting part 20. The pedestal portion 22b shown in FIG. 7 is cantilevered by the support portion 22a.

  As shown in FIG. 7A, a first long vegetable 60 a is placed on the first placing portion 201, and a second long vegetable 60 b is placed on the second placing portion 202. Since the long vegetables are not placed on the third placing section 203 and the weight of the long vegetables is not stored in the weight storage section 54, the third placing section 203 is aligned with the weighing section 22 by driving the slide driving section 24. It

  As shown in FIG. 7B, the drive control unit 58 drives the weighing drive unit 26 to move the pedestal portion 22b of the weighing unit 22 above the overhanging portion 20b. The upward movement of the pedestal portion 22b is relative to the third placing portion 203, and intersects the sliding direction of the placing portion 20.

  As shown in FIG. 7C, the operator places the third long vegetables 60c on the pedestal portion 22b of the weighing unit 22 and causes the weighing unit 22 to weigh the third long vegetables 60c. Since the third long vegetable 60c is not supported by any portion other than the pedestal portion 22b, the error in weighing accuracy can be reduced. The weight acquisition unit 52 constantly monitors the weighing value of the weighing sensor 22c, determines that a long vegetable is placed when the weighing value exceeds a predetermined threshold value, and determines the weighing value of the weighing sensor 22c to be the weight of the long vegetable. To the weight storage unit 54. The weight storage unit 54 stores the weight received from the weighing sensor 22c in combination with the identification information of the mounting unit 20 received from the drive control unit 58, and the weighing ends.

  As shown in FIG. 7D, when the weighing is completed, the drive control unit 58 drives the weighing driving unit 26 to move the pedestal portion 22b downward, and the pedestal portion 22b moves to the third mounting portion 203. Deliver the third long vegetable 60c to.

  When the pedestal portion 22b moves up and down, the pedestal portion 22b passes between the plurality of overhanging portions 20b, so that the overhanging portion 20b and the pedestal portion 22b do not interfere with each other. In addition, since the third long vegetables 60c can be handed over in a state of being laid down, the third long vegetables 60c are unlikely to fall apart, and the third long vegetables 60c should be bound as they are after weighing. Will also be possible.

  In this way, the weighing unit 22 can weigh the long vegetables placed on the placing unit 20. When the weighing of the third long vegetables 60c is finished, the drive control unit 58 slides the placing unit 20 to align the fourth placing unit 204 and the weighing unit 22, and moves the pedestal unit 22b of the weighing unit 22 upward. Move and execute control to measure long vegetables. When the weight storage unit 54 stores the weights of the long vegetables of all the placement units 20, the control for taking out the combined long vegetables is executed.

  In addition, when the upper and lower limits of the combined weight of the long vegetables in the modified example are set and the combination is performed, the weight storage unit 54 is placed on all the placement units 20 when a combination that meets the conditions is obtained. The control of taking out the combined long vegetables may be executed without waiting for the stored weight of the long vegetables to be stored. By doing so, the time required for the metering work can be shortened.

  In addition, in FIG. 7, when weighing the third long vegetables 60c of the third placing unit 203, after moving the pedestal portion 22b upward, the third long vegetables 60c are placed on the pedestal portion 22b. However, the present invention is not limited to this mode. For example, not only the pedestal portion 22b on which long vegetables are not placed, but also the operator may place the long vegetables on any one of the placing sections 20 on which long vegetables are not placed. good. By doing so, the worker can place the long vegetables on a place where the long vegetables are not placed, regardless of which of the pedestal portions 22b placing section 20, the work speed is improved. The work load is also reduced. Further, for example, the worker may place the third long vegetables 60c on the third placing unit 203 in advance and start weighing. In this case, by moving the pedestal portion 22b upward, the third long vegetables 60c are transferred from the third placing portion 203 to the pedestal portion 22b and weighed. Before turning on the power switch 34 of the weighing device 10, the operator places long vegetables on all the placement sections 20, turns on the power switch 34, and starts the weighing control. Is also possible.

  FIG. 8 is a diagram for explaining control of taking out long vegetables according to the combination of the combination calculation unit 56. As shown in FIG. 8A, the first placing portion 201 includes the first long vegetables 60a, the second placing portion 202 includes the second long vegetables 60b, and the third placing portion 203 includes the third long vegetables. 60c, a fourth long vegetable 60d is placed on the fourth placing portion 204, and a fifth long vegetable 60e is placed on the fifth placing portion 205. Each weight of the long vegetables is measured by the measuring unit 22 and stored in the weight storage unit 54.

  The combination calculation unit 56 determines a combination of weights that exceeds a predetermined target weight and is the lightest, based on each weight of the long vegetables. In this example, the third long vegetables 60c and the fourth long vegetables 60d are determined, and the identification information of the third placing unit 203 and the fourth placing unit 204 is sent to the drive control unit 58. The drive control unit 58 executes control to move the third long vegetables 60c and the fourth long vegetables 60d on the third placing unit 203 and the fourth placing unit 204 to the container 44.

  As shown in FIG. 8B, the drive control unit 58 slides the placement unit 20 to align the fourth placement unit 204 and the container 44. Next, as illustrated in FIG. 8C, the drive control unit 58 drives the rotation drive unit 28 to rotate the overhanging portion 20b of the fourth mounting portion 204 to store the fourth long vegetables 60d in the container 44. Move to. The drive control unit 58 drives the rotation drive unit 28 to rotate the protruding portion 20b of the fourth mounting portion 204 to return it to the original position.

  After moving the fourth long vegetables 60d from the fourth placement unit 204 to the container 44, the drive control unit 58 slides the placement unit 20 to cause the third placement unit to slide, as illustrated in FIG. 8D. Align 203 with container 44.

  As shown in FIG. 8( e ), the drive control unit 58 drives the rotation drive unit 28 to rotate the overhanging portion 20 b of the third mounting portion 203 and transfers the third long vegetables 60 c to the container 44. The drive control unit 58 drives the rotation drive unit 28 to rotate the protruding portion 20b of the third mounting portion 203 to return it to the original position. In this way, the worker can easily take out the measured long vegetables by transferring the third long vegetables 60c and the fourth long vegetables 60d to the container 44. After taking out the long vegetables, the weight storage unit 54 resets the weight associated with the extracted identification information of the placing unit 20, and the drive control unit 58 executes the control for weighing the long vegetables again. .

  FIG. 9 shows a flowchart of the metering process by the metering device 10. When the metering device 10 is driven, the drive control unit 58 determines whether or not there is an empty mounting section 20 on which the object to be weighed is not mounted (S10). That is, the drive control unit 58 determines whether or not the weight storage unit 54 has an empty mounting unit 20 in which the weight is not stored. When there is a vacant mounting part 20 (Y of S10), the drive control part 58 slides the mounting part 20 and controls the vacant mounting part 20 and the weighing part 22 as control for measuring the object to be weighed. Are aligned (S12).

  The drive control unit 58 drives the metering drive unit 26 to move the pedestal portion 22b above the protruding portion 20b (S14). The weight acquisition unit 52 determines whether an object to be weighed having a weight equal to or more than a predetermined threshold is placed on the pedestal portion 22b based on the weighing result of the weighing unit 22, and determines whether the object to be weighed is placed (S16). ).

  That is, when the measured value of the weighing unit 22 is less than or equal to the predetermined threshold value, it is determined that the object to be weighed is not placed (N in S16), and the drive control unit 58 causes the pedestal unit 22b to wait. When it is determined that the weighing value of the weighing unit 22 exceeds the predetermined threshold value and the object is placed (Y in S16), the weight is measured (S17), and the weight storage unit 54 loads the weight of the object. It is stored together with the identification information of the storage unit 20 (S18). The drive control unit 58 moves the pedestal portion 22b downward by driving the weighing drive unit 26, and transfers the placed object to be weighed from the pedestal portion 22b to the mounting unit 20 (S20).

  When there is no vacant placement part 20 (N in S10), the combination calculation part 56 performs, as a combination calculation process, a combination of weights that exceeds a predetermined target weight and becomes the lightest weight based on each weight of the objects to be weighed. Is determined (S22). The drive control unit 58 executes control for taking out the combined objects to be weighed (S24). In this way, the weighing object can be weighed.

  FIG. 10: is a figure for demonstrating the operation|movement which measures the long vegetables of a modification. The weighing operation of the modified example shown in FIG. 10 is different from the weighing operation shown in FIG. 7 in that long vegetables are delivered by the rotational drive of the placing unit 20 by the rotary drive unit 28. Accordingly, the weighing drive unit 26 can be dispensed with without moving the pedestal portion 22b of the weighing unit 22, but the rotation drive unit 28 is moved to the weighing position where the weighing unit 22 is located and the discharge position where the container 44 of the binding device 12 is located. It is necessary to provide.

  As shown in FIG. 10A, a first long vegetable 60 a is placed on the first placing section 201, and a second long vegetable 60 b is placed on the second placing section 202. The third long-sized vegetables 60c, which have not been weighed, are placed on the third placing portion 203, and are aligned with the weighing portion 22 by driving the slide driving portion 24.

  As shown in FIG. 10B, the drive control unit 58 drives the rotation drive unit 28 to move the overhanging portion 20b to the pedestal portion 22b when the non-weighed third placing portion 203 moves to the weighing position. Move it lower.

  As shown in FIG. 10C, the operator places the third long vegetables 60c on the pedestal portion 22b and causes the weighing unit 22 to weigh the third long vegetables 60c. The weighing unit 22 transmits the weighing result to the control unit 30, and when the weighing unit 22 sends a weight equal to or more than a predetermined threshold value, the weight storage unit 54 associates the received weight with the identification information of the placing unit 20. Remember.

  As shown in FIG. 10D, when the weighing unit 22 detects a weight equal to or more than a predetermined threshold value after the weighing is finished, the drive control unit 58 drives the rotation driving unit 28 to move the overhanging unit 20b to the pedestal unit. The third placing portion 203 receives the third long vegetables 60c from the pedestal portion 22b by rotating the upper portion 22b upward. In this way, the rotation drive unit 28 functions as a second drive unit that moves the mounting unit 20, and relatively moves the pedestal unit 22b and the mounting unit 20 by driving, so that the pedestal unit 22b and the mounting unit 20 are moved. Let me hand over the objects to be weighed. The movement of the overhanging portion 20b below the pedestal portion 22b due to the rotation is a relative movement with respect to the pedestal portion 22b, and intersects the sliding direction of the mounting portion 20. Further, since the pedestal portion 22b passes between the plurality of overhanging portions 20b when the overhanging portion 20b rotates, the overhanging portion 20b and the pedestal portion 22b do not interfere with each other. As described above, in the weighing control of the modified example, the weighing accuracy can be stabilized by not moving the weighing unit 22.

  The present invention has been described above based on the embodiments. It should be understood by those skilled in the art that this embodiment is an exemplification, and that various modifications can be made to the combination of the respective constituent elements, and that such modifications are within the scope of the present invention.

  In the embodiment, the mode in which the long vegetables are used as the objects to be weighed is shown, but the mode is not limited to this mode. By changing the sizes of the placing part 20 and the measuring part 22, it is possible to use other than long vegetables such as flowers.

  As shown in FIG. 10, a mode is shown in which the overhanging part 20b of the mounting part 20 is axially rotated to transfer the object to be weighed to the pedestal part 22b of the weighing part 22, but the invention is not limited to this mode, and the weighing part 22 is not limited thereto. The pedestal portion 22b may be rotated to receive the object to be weighed from the mounting portion 20.

  1 metering binding device, 10 metering device, 12 binding device, 20 placing part, 20a shaft part, 20b overhanging part, 22 weighing part, 22a support part, 22b pedestal part, 22c weighing sensor, 24 slide drive part, 26 metering drive part, 28 rotation drive part, 30 control part, 32 display part, 34 power switch, 36 rail part, 37 fixed part, 38 slide part, 40 guide part, 42 guide support part, 44 container, 46 conveyor, 50 Placement detection sensor, 52 weight acquisition unit, 54 weight storage unit, 56 combination calculation unit, 58 drive control unit.

Claims (4)

A plurality of mounting portions for mounting an object to be weighed,
A first drive unit for moving the plurality of placement units;
A weighing unit that has a pedestal part on which an object to be weighed can be placed, and a weighing unit that weighs the object to be weighed placed on the pedestal part;
A second drive unit for moving the pedestal unit or the mounting unit;
By controlling the driving of the first drive unit and the second drive unit, the pedestal unit is positioned above the mounting unit, the weight of the object to be weighed is measured by the measuring unit, and the weight is acquired from the measuring unit. A control unit that determines a combination of the objects to be weighed placed on the placement unit that exceeds a predetermined target weight based on each weight of the objects to be weighed;
The first drive unit slides a plurality of the placement units by driving to align any one of the placement units with the weighing unit,
The second drive unit moves the pedestal unit and the mounting unit relative to each other by driving to transfer the objects to be weighed between the pedestal unit and the mounting unit,
The control unit places an object to be weighed whose weighing value exceeds a predetermined threshold value in a state where the pedestal unit is positioned above the placing unit that has moved relatively to transfer the object to be weighed. metering device, characterized in that to wait until the location. The placing unit has a shaft portion that is slid by the first drive unit, and a plurality of protruding portions that extend from the shaft portion in the sliding direction and on which the objects to be weighed are placed.
The metering device according to claim 1, wherein the pedestal portion receives the object to be weighed by passing between the plurality of overhang portions by the relative movement by the driving of the second drive portion.   The metering device according to claim 1 or 2, wherein the placing section is rotationally moved by the driving of the second driving section.   The metering device according to claim 1 or 2, wherein the pedestal part is moved in the vertical direction by driving the second driving part.

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