JP2010078491A - Combinational balance, and weighing and packaging system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combinational balance equipped with an operation setting display capable of putting display on a plurality of weighing heads displayed on a display part into a furthermore easily-understandable state to an operator, and to provide a weighing and packaging system equipped with such a combinational balance. <P>SOLUTION: This combinational balance 99 includes a combinational balance body 99A having a plurality of weighing heads equipped respectively with a weighing container (weighing hopper 8), for performing combinational weighing, and discharging weighing objects having a target weight; an operation controller 16 for controlling the combinational balance body 99A, and performing combinational operation; an operation setting display 17 equipped with a display part 17b; the first azimuth angle sensor 72 for detecting an azimuth of the combinational balance body 99A; and the second azimuth angle sensor 73 for detecting an azimuth of the operation setting display 17. The plurality of weighing heads are displayed graphically by being matched with actual arrangement of the plurality of weighing heads viewed from an operator facing to the display part 17b, on the display part 17b of the operation setting display 17, based on a difference of the azimuth between the combinational balance body 99A and the operation setting display 17. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a combination weigher, and a weighing and packaging system including both a combination weigher and a packaging machine, and more particularly, to an operation setting indicator provided in the combination weigher.

  Conventionally, a combination weigher and a packaging machine are constructed as a weighing and packaging system by combining them (see Patent Document 1). The combination weigher provided in the weighing and packaging system variously combines the weighing values of the objects to be weighed in a plurality of weighing containers, and selects and selects the combination with the total weight closest to the target weight from these combinations. The object to be weighed is discharged from the combination container. The packaging machine sequentially packages the objects to be weighed discharged from the combination weigher.

  The operation of a general combination weigher will be briefly described. For example, in the combination weigher included in the weighing and packaging system described in Patent Document 1, first, an object to be weighed is supplied to the apex of a conical distributed feeder by a supply feeder. The weighed material supplied to the dispersion feeder is dispersed and conveyed to a plurality of linear feeders arranged radially around the dispersion feeder, and then is fed into the weighing hopper (measuring container) via the supply hopper. The linear feeder, the supply hopper, and the weighing hopper are configured as one unit called “weighing head”, and the combination weigher includes a plurality of weighing heads, and these weighing heads are arranged in an annular shape.

  Then, the weights of the objects to be weighed are respectively weighed by the respective weighing hoppers, and the weighing results are output to the control unit. Based on the measurement result, the control unit selects the optimum combination of the weighing hoppers in which the weight of the weighing object becomes the target weight, and releases the object to be weighed held with respect to the selected weighing hopper. Instructions are given. The objects to be weighed released from the weighing hopper in response to the instruction from the control unit are collected by the collecting chute and then put into the packaging machine through the discharge chute and packed into one bag.

By the way, there is known a technology that includes an azimuth angle sensor such as a map guidance system for a mobile phone or an electronic compass, detects its own direction change with this azimuth angle sensor, and displays corresponding information on a display. . For example, in Patent Document 2, an azimuth sensor that measures geomagnetism detects a change corresponding to a change in the attitude of the display device by moving the display device itself up, down, left, and right in the space without requiring a keyboard or a mouse. A small and lightweight three-dimensional display device that calculates and displays three-dimensional information accordingly is disclosed.
Special opening and closing 10-115545 gazette JP 2004-46006 A

  The above-described conventional weighing and packaging system has room for improvement in terms of making it easier for the operator to understand the display related to the plurality of weighing heads displayed on the display unit with respect to the operation setting display.

  The present invention has been made in order to solve the above-described problems, and includes an operation setting display that can make it easier for the operator to understand the display regarding the plurality of weighing heads displayed on the display unit. It is an object of the present invention to provide a combination weigher and a weighing packaging system including such a combination weigher.

  First, the above problem will be described in detail with reference to FIGS. 1 and 12 relating to the weighing and packaging system of the present invention.

  FIG. 1 shows a front view of the weighing and packaging system. As shown in FIG. 1, the measuring and packaging system 100 is installed on a gantry 65 assembled in a factory. In the weighing and packaging system 100, the combination weigher 99 and the packaging machine 98 need to be arranged one above the other. Therefore, the combination weigher 99 is supported by the gantry 65 in a state of floating from the floor. It is placed on the floor. The operation setting indicator 17 of the combination balance 99 installed at a high position in this manner is attached to the leg of the gantry 65 away from the combination weigher 99 or suspended from the gantry 65 or the ceiling, etc. It is provided at a position where operators standing on the floor can easily operate. The arrangement of the operation setting indicator 17 is determined according to the space in which the weighing and packaging system 100 is installed and the flow line of the operator. For example, even when the weighing and packaging system 100 is installed on the gantry 65 having the same shape, The position and orientation of the operation setting display 17 may be different.

  In order to facilitate the adjustment / maintenance inspection of the enormous number of movable parts included in the combination weigher, on the maintenance screen displayed on the operation setting display, for example, as shown in FIG. The heads are displayed graphically so that the status can be grasped at a glance by color-coding the weighing heads that need to be adjusted or inspected.

  However, in the above maintenance screen, when a plurality of measuring heads provided on the combination weigher are arranged in a ring shape, each measuring head has the same shape, so the measuring head that needs to be adjusted or inspected is the actual one. It may be difficult to understand whether it corresponds to a weighing head. This is because there are misalignments in the direction seen by the operator between the weighing heads displayed on the operation setting display and the weighing heads actually installed in the factory. is there. For example, the weighing head arranged at the top of the plurality of weighing heads displayed on the operation setting display is the most rightward when viewed from the operator among the plurality of weighing heads actually installed in the factory. In such a case, it is difficult to specify a predetermined measuring head at a glance because the operator's sense is shifted.

  However, in the conventional combination weigher and the weighing and packaging system, there is no concept of matching the space in which the apparatus is installed and the display of the apparatus as in the technique described in Patent Document 2.

  Therefore, the combination weigher of the present invention includes a combination weigher body that includes a plurality of weighing heads each including a weighing container and discharges an object to be weighed in a target weight, and the combination weigher according to preset operating conditions. An operation controller that controls the main body and receives a measurement value output from the weighing container and performs a combination operation, and inputs an operation to the operation controller and receives an output from the operation controller to obtain information. An operation setting indicator having a display unit for displaying a screen, a first azimuth angle sensor for detecting the azimuth of the combination weigher body, and a second azimuth angle sensor for detecting the azimuth of the operation setting indicator. The operation setting indicator is based on a difference in azimuth between the combination weigher body and the operation setting indicator derived from detection signals of the first azimuth angle sensor and the second azimuth angle sensor. The metering head, said arrangement and aligned the actual said plurality of weighing heads as viewed from the operator facing the display unit, in which are configured to FIG displaying on the display unit.

  According to the combination weigher having the above-described configuration, the arrangement of the plurality of actual weighing heads and the plurality of weighing heads displayed on the display unit of the operation setting display is performed while looking at the display unit of the operation setting display. Therefore, the display on the operation setting display is easier for the operator to understand. Therefore, the operator can easily specify the measuring head instructed on the display unit of the operation setting display from the actual measuring heads, and can perform maintenance of the measuring head without fail without any mistake. it can.

  In the combination weigher, it is preferable that the plurality of weighing heads are arranged in a ring shape, and the operation setting indicator is configured to display the plurality of weighing heads arranged in a ring shape.

  According to the combination weigher of the above configuration, even if the actual plurality of weighing heads are arranged in a ring shape, the operator is instructed by the display unit by looking at the display unit of the operation setting display. The weighing head can be easily identified from a plurality of actual weighing heads.

  The weighing and packaging system of the present invention includes the combination weigher and a packaging machine for packaging the objects to be weighed discharged from the combination weigher.

  According to the weighing and packaging system having the above configuration, the arrangement of the actual weighing heads included in the combination weigher and the plurality of weighing heads displayed on the display unit of the operation setting display unit is the display unit of the operation setting display unit. Since it is consistent from the viewpoint of the worker who works while watching, the display of the operation setting display becomes easier for the worker to understand. Therefore, the operator can easily specify the measuring head instructed on the display unit of the operation setting display from the actual measuring heads, and can perform maintenance of the measuring head without fail without any mistake. it can.

  The present invention has the following effects.

  According to the present invention, the arrangement of the plurality of actual weighing heads provided in the combination weigher and the plurality of weighing heads displayed on the display unit of the operation setting display works while looking at the display unit of the operation setting display. Since they are consistent from the viewpoint of the operator, the display on the operation setting indicator provided in the combination weigher is easier for the operator to understand.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. In the following description, the same or corresponding elements are denoted by the same reference symbols throughout the drawings, and redundant description thereof is omitted.

(Embodiment)
First, it demonstrates from the schematic structure of the measurement packaging system 100 which concerns on embodiment of this invention. 1 is a front view showing an overall configuration of a weighing and packaging system according to an embodiment of the present invention, FIG. 2 is a plan view of the weighing and packaging system, FIG. 3 is a front view of a combination weigher, and FIG. 4 is a configuration of a combination weigher. FIG. 5 is a block diagram showing the control configuration of the combination weigher, and FIG. 6 is a configuration diagram of the packaging machine.

  As shown in FIGS. 1 and 2, the weighing and packaging system 100 includes a combination weigher 99 and a packaging machine 98 that packages an object to be weighed by the combination weigher 99. The weighing and packaging system 100 is installed on a gantry 65 having long legs 67, 67..., The combination weigher 99 is supported by the gantry 65 in a floating state, and the packaging machine 98 is a floor below the combination weigher 99. It is mounted on. The operation setting indicator 17 of the combination weigher 99 is attached to the leg 67 of the gantry 65. The gantry 65 is provided with stairs 69 and a handrail 68 so that the combination balance 99 can be maintained.

  The objects to be weighed in the stock feeder 61 are supplied to the combination weigher 99 using a bucket lifter as the supply device 1. In the present embodiment, the supply device 1 is configured by a bucket lifter including an endless belt and a plurality of containers arranged in a row on the endless belt. However, the supply device 1 is limited to the bucket lifter. Instead, a trough (a large and slender container) and a vibrator for vibrating the trough may be provided, and an object to be weighed on the trough may be supplied to the combination scale 99 by the vibration of the trough.

  The objects to be weighed supplied to the combination weigher 99 are weighed in combination, discharged by a predetermined amount, and stored in a collecting hopper 10 provided at the lower part of the combination weigher 99. A predetermined amount of objects accommodated in the collective hopper 10 is discharged from the collective hopper 10 in response to a discharge permission signal from the packaging machine 98, is slid on the packaging machine side chute 66, and is put into the packaging machine 98, and the bag Stuffed.

[Combination scale 99]
Here, the configuration of the combination scale 99 will be described in detail.

  As shown in FIGS. 3 and 4, the combination weigher 99 includes a plurality of weighing hoppers 8 that perform a combination weighing of the objects to be weighed, and a dispersion feeder that conveys the objects to be weighed supplied from the supply device 1 to each weighing hopper 8. 30, control and combination of a plurality of linear feeders 50 and a plurality of supply hoppers 7, a collective chute 11, a collective funnel 12 and a collective hopper 10 for sending the weighed articles to the next process such as packaging, and a combination weigher 99 And an arithmetic controller 16 for performing arithmetic operations. Among these, the linear feeder 50, the supply hopper 7, and the weighing hopper 8 constitute a set of “weighing heads”, and a plurality of weighing heads are provided in the combination weigher 99. The plurality of weighing heads are arranged in an annular shape so as to surround the dispersion feeder 30. The combination balance 99 according to the present embodiment includes 14 sets of weighing heads.

  The dispersion feeder 30 is provided in the upper part of the combination balance 99 (above the collective chute 11). The dispersion feeder 30 includes a conical top cone 3 and a vibrator 4 that vibrates the top cone 3. The objects to be weighed supplied from the supply device 1 onto the top cone 3 of the dispersion feeder 30 are dispersed radially while sliding down on the top cone 3 due to vibration. A layer thickness adjusting ring 75 is provided above the dispersion feeder 30, and a level detector mounting bracket 76 that is also provided above the dispersion feeder 30 is to be weighed on the top cone 3 of the dispersion feeder 30. A level detector 2 for detecting the layer thickness of the object is attached. The level detector 2 can be composed of, for example, an ultrasonic sensor.

  A plurality of rectilinear feeders 50 are arranged radially around the dispersion feeder 30. Each linear feeder 50 includes a feeder pan 5 and a vibrator 6 that vibrates the feeder pan 5. The object to be weighed sent from the dispersion feeder 30 onto the feeder pan 5 of the linear feeder 50 is sent out to the supply hopper 7 by vibration.

  One supply hopper 7 is provided on the delivery side of each object to be weighed in each linear feeder 50, and the plurality of supply hoppers 7 are arranged in an annular shape. Further, one weighing hopper 8 as a weighing container is provided below each supply hopper 7, and a plurality of weighing hoppers 8 are arranged in an annular shape. Each supply hopper 7 is provided with a gate 7a. When the gate 7a is opened, an object to be weighed held in the supply hopper 7 is put into a weighing hopper 8 positioned therebelow.

  Each weighing hopper 8 is provided with a weight sensor 9 such as a load cell in order to weigh the object to be weighed in the weighing hopper 8. The measurement value (detection signal) of each weight sensor 9 is transmitted to the arithmetic controller 16.

  A collecting chute 11 is provided below the plurality of weighing hoppers 8, a collecting funnel 12 is provided at the lower end of the collecting chute 11, and a collecting hopper 10 is provided below the collecting funnel 12. Each weighing hopper 8 is provided with a gate 8a. When the gate 8a is opened, an object to be weighed held by the weighing hopper 8 is discharged to the collecting chute 11, slides down on the collecting chute 11, and is discharged from the collecting funnel 12. Are put into the collecting hopper 10. The collective hopper 10 includes a gate 10a. When the gate 10a is opened, the objects to be weighed held in the collective hopper 10 are put into the packaging machine 98.

  Next, the configuration of the control system of the combination weigher 99 will be described.

  As shown in FIGS. 4 and 5, the arithmetic controller 16 is configured as a microprocessor centered on a CPU, and includes an arithmetic control unit 21 including a CPU and a storage unit 22 including a memory such as a RAM and a ROM. And an I / O circuit 18, an A / D conversion circuit 13, a gate drive circuit 14, and a vibration control circuit 15 connected to the arithmetic control unit 21. Further, an operation setting display 17 that is a user interface of the combination weigher 99 is connected to the arithmetic controller 16. The operation setting display 17 includes a touch panel type input unit 17a for operating the combination weigher 99, a display unit 17b for receiving an output from the arithmetic controller 16 and displaying an operation state of the combination weigher 99, and an input. And a control circuit 17c for controlling the unit 17a and the display unit 17b.

  The arithmetic control unit 21 receives a detection signal of the amount of the object to be weighed on the dispersion feeder 30 from the level detector 2 through the I / O circuit 18, and each signal from the weight sensor 9 through the A / D conversion circuit 13. A weighing signal of an object to be weighed accommodated in the weighing hopper 8 and an input signal from the operation setting display 17 are input. Further, from the arithmetic control unit 21, drive signals to the vibrators 4 and 6 through the vibration control circuit 15, drive signals to the gates 7 a, 8 a, and 10 a through the gate drive circuit 14, and operation settings. A display image signal or the like to the display device 17 is output. The arithmetic control unit 21 transmits and receives predetermined signals and information to and from the packaging controller 81 (more precisely, the arithmetic control unit 82) of the packaging device 98 via the I / O circuit 18.

  The storage unit 22 stores an operation condition registration table, an operation condition table, an operating data register, a display buffer, and the like. The operation condition registration table stores a large number of operation condition data (for example, operation condition data number, product name, target weight value, feeder amplitude, etc.). One operating condition data selected from the operating condition registration table is written in the operating condition table, and the combination scale 99 is controlled based on the operating condition data written in the operating condition table. The operating data register stores operating status data of the combination balance 99 during operation. Display data including necessary data among the operation status data is written in the display buffer, and this display data is transmitted as a display image signal to the control circuit 17c of the operation setting display 17 and displayed on the display unit 17b.

  In the present embodiment, the arithmetic controller 16 means not only a single arithmetic controller but also an arithmetic controller group including a plurality of arithmetic controllers. Therefore, the arithmetic controller 16 may be composed of a single arithmetic controller, or may be composed of a plurality of arithmetic controllers that are arranged in a distributed manner and controlled in cooperation.

[Packing machine 98]
Next, the configuration of the packaging machine 98 will be described.

  The packaging machine 98, for example, fills and packs an object to be weighed from a combination scale 99 into a bag while manufacturing the bag. As shown in FIG. 6, the packaging machine 98 includes a vertical sealing heater 43 that heat-seals the packaging film 42 in a cylindrical shape, a vertical sealing air cylinder 44 that moves the heater 43 back and forth, and a cylindrical packaging. A pull belt 45 that feeds the film 42 downward, a horizontal seal heater 46 that performs horizontal seal after filling the objects to be weighed discharged from the collecting hopper 10 of the combination scale 99, and a horizontal seal air that moves the heater 46 forward and backward. Cylinders 47, 47, a cutter 48 that cuts the packaging film 42 after horizontal sealing, and a cutter air cylinder 49 that drives the cutter 48 are provided.

  Then, the structure of the control system of the packaging machine 98 is demonstrated. The packaging controller 81 of the packaging machine 98 includes an arithmetic control unit 82 composed of a CPU and the like, and a storage unit 83 composed of a memory such as a RAM and a ROM. The storage unit 83 stores an operation program for the packaging machine, a number of operation parameter data that are operation setting data, and the like, and the operation control unit 82 executes the operation program, whereby the packaging machine 98 is stored. Is controlled.

  Further, an operation control circuit 85, an A / D conversion circuit 86, and a communication circuit 84 are connected to the calculation control unit 82 of the packaging controller 81. The arithmetic control unit 82 controls the operations of the vertical sealing air cylinder 44, the horizontal sealing air cylinder 47, the cutter air cylinder 49, and the pull belt 45 via the operation control circuit 85. Further, the arithmetic control unit 82 acquires a measurement value by a temperature controller provided in the vertical seal heater 43 and the horizontal seal heater 46 via the A / D conversion circuit 86. Further, the calculation control unit 82 transmits / receives a discharge permission signal and a discharge completion signal and transmits / receives various information to / from the combination weigher 99 (more precisely, the calculation control unit 21) via the communication circuit 84.

[Operation of weighing packaging system 100]
The operation of the weighing and packaging system 100 configured as described above will be described. The operation controller 16 of the combination weigher 99 executes an operation program to control the operation of the combination weigher 99 and perform a combination operation. Parameters such as combination target weight values and operating speed conditions are input in advance from the operation setting display 17 to the operation control unit 21 of the operation controller 16 and stored in the storage unit 22. These parameters and the like are read from the storage unit 22 as necessary.

  When starting the weighing operation, the arithmetic controller 16 first controls the vibrator 4 of the distributed feeder 30 and the vibrator 6 of the linear feeder 50 via the vibration control circuit 27 so as to operate. Thus, the objects to be weighed supplied from the supply device 1 onto the dispersion feeder 30 are distributed in the circumferential direction from the dispersion feeder 30 and fed to the supply hoppers 7 through the linearly-advanced feeders 50 arranged radially. The At this time, the arithmetic controller 16 detects the layer thickness of the object to be weighed on the dispersion feeder 30 by the level detector 2, and when the amount of the object to be weighed becomes smaller than a predetermined amount (lower limit value), the supply device 1 is turned off. By operating, a predetermined amount or more of an object to be weighed is constantly supplied onto the dispersion feeder 30.

  Subsequently, the arithmetic controller 16 detects that the weighing hopper 8 is empty, and controls the gate 7 a of the supply hopper 7 to be opened via the gate drive circuit 26. As a result, the object to be weighed is fed from the supply hopper 7 to the weighing hopper 8. When an object to be weighed is put into the weighing hopper 8, the arithmetic controller 16 sends the measurement value (weight of the object to be weighed held in each weighing hopper 8) by the weight sensor 9 via the A / D conversion circuit 25. The combination calculation is performed based on the detected weight of the object to be weighed. In this combination calculation, a combination in which the sum of the weight values of the objects weighed by the weight sensor 9 from the plurality of weighing hoppers 8 is within a predetermined weight range (allowable weight range with respect to the target weight). Is determined, and the combination of the weighing hoppers 8 to be discharged is selected.

  Then, the calculation controller 16 opens the gate 8a of the weighing hopper 8 selected for the combination obtained by the combination calculation via the gate drive circuit 26, and discharges the objects to be weighed onto the collective chute 11. The objects to be weighed are collected on the collecting chute 11 by the sliding funnel 12 and accommodated in the collecting hopper 10. When a discharge permission signal is input from the packaging machine 98, the arithmetic controller 16 opens the gate 10 a of the collecting hopper 10 and releases a predetermined amount of objects to be weighed held in the collecting hopper 10 to the packaging machine 98. At the same time, a discharge completion signal is output to the packaging machine 98. The packaging machine 98 performs an operation such as a sealing operation based on the input timing of the discharge completion signal from the combination scale 99.

[Weighing head layout display alignment function]
Although the mutual positional relationship of the respective weighing heads provided in the combination weigher 99 does not change, a certain weighing head displayed on the display unit 17b of the operation setting display 17 and a certain weighing head viewed from an operator facing the display unit 17b The arrangement (phase and direction) may differ. Therefore, the combination weigher 99 according to the present embodiment has an arrangement of each weighing head that is graphically displayed on the display unit 17b of the operation setting display 17, and each actual amount viewed from the operator facing the display unit 17b. A “weighing head arrangement display matching function” for matching the weighing head arrangement is provided. Here, “displaying the weighing head graphically” is not limited to a photograph (video) or a picture of the weighing head. For example, symbols and characters representing the weighing head are displayed according to the arrangement of each weighing head. It is also included.

  The weighing head arrangement display matching function will be described in detail below. 7 is a plan view of the combination weigher, FIG. 8 is an explanatory view of the arrangement of the weighing head, FIG. 9 is a diagram showing a configuration for realizing the arrangement display alignment function of the weighing head, and FIG. 10 shows an example of an automatic operation screen. FIG. 11 is a diagram showing a modified example of the automatic operation screen, FIG. 12 is a diagram showing an example of a maintenance screen, and FIG. 13 is a diagram showing a modified example of the configuration for realizing the weighing head arrangement display matching function. . As shown in FIGS. 7 and 8, the combination weigher 99 according to the present embodiment includes 14 sets of weighing heads arranged in an annular shape. For convenience of explanation, the left side of the two sets of weighing heads located at the bottom in these drawings is called the first head, and the second head to the fourteenth head clockwise from the first head. I will call it.

  As shown in FIGS. 8 and 9, the combination weigher body 99A is provided with a first azimuth sensor 72 for detecting the orientation of the combination weigher body 99A. Here, the “combination weigher body 99A” is a part of the combination weigher 99 that includes the weighing head. In the present embodiment, the combination weigher 99 excludes the arithmetic controller 16 and the operation setting indicator 17. Part. Further, the operation setting display 17 is provided with a second azimuth angle sensor 73 for detecting the azimuth of the operation setting display 17. The first azimuth angle sensor 72 and the second azimuth angle sensor 73 are configured to transmit the detection signals to the control circuit 17 c of the operation setting display 17.

  In general, an azimuth angle sensor is a means for detecting a horizontal component when a direction is represented by a numerical value at an angle between a certain direction and a reference direction. In the present embodiment, the two azimuth sensors 72 and 73 are both magnetic azimuth sensors, and output analog voltages of the azimuth between the origin and the moving point with reference to the north azimuth. These intermediate directions can be output at each voltage.

  The control circuit 17c of the operation setting display 17 that has received detection signals from the first azimuth angle sensor 72 and the second azimuth angle sensor 73 is detected by the first azimuth angle sensor 72 based on these detection signals. The “deviation angle Δθ”, which is the difference between the measured azimuth and the azimuth detected by the second azimuth angle sensor 73, is obtained. The operation setting display 17 receives the display image signal from the arithmetic controller 16 and graphically displays the measurement head group on the display unit 17b of the operation setting display 17, so that the plurality of measurement heads to be displayed are displayed. The arrangement is adjusted according to the deviation angle Δθ.

  However, as shown in FIG. 13, the first azimuth angle sensor 72 and the second azimuth angle sensor 73 are configured to transmit the detection signals to the arithmetic control unit 21 of the arithmetic controller 16, and these detections are detected. When the arithmetic control unit 21 of the arithmetic controller 16 receiving the signal creates a display image signal to be output to the control circuit 17c of the operation setting indicator 17, the arrangement of the measurement head groups displayed graphically is determined as the deviation angle. You may be comprised so that it may adjust according to (DELTA) (theta).

  In the present embodiment, the first azimuth sensor 72 detects the azimuth in the direction from the first head to the fourteenth head (arrow 72a in FIG. 8), and the second azimuth sensor 73 The direction of the left-right direction (arrow 73a in FIG. 8) of the display part 17b (screen) of the operation setting display 17 is detected.

  In FIG. 8, the azimuth detected by the first azimuth sensor 72 provided on the combination weigher body 99A and the azimuth detected by the second azimuth sensor 73 provided on the operation setting display 17 at the A position Therefore, the deviation angle Δθ is 0 degree. When the deviation angle Δθ is 0 degree, for example, as shown in FIG. 10, in the automatic operation screen 120 displayed on the display unit 17 b of the operation setting display 17, the first head and the 14th are at the lowest position. A head is arranged, and a measuring head group in which the second head to the thirteenth head are arranged in an annular manner in order from the first head in a clockwise direction appears. Hereinafter, the display of the weighing head group when the deviation angle Δθ is 0 degree as shown in FIG. 10 is referred to as “reference arrangement display”.

  The automatic operation screen 120 shown in FIG. 10 includes a product number / product name display area 121, a head circular display area 122, a combined operation status display area 124, an “operation ON / OFF” touch key 123, and a feeder adjustment touch key area. 125 and a “return” touch key 126 are provided. Among them, in the head circular display area 122, a plurality of measuring heads are arranged and displayed in a ring shape, and numbers (No. 1 to No. 14) assigned to the measuring heads are displayed on the innermost peripheral side of the ring. . Therefore, it can be read from the automatic operation screen 120 shown in FIG. 10 that the average weight of the candy weighed by the first head is 23.5 g.

  In FIG. 8, when the operation setting indicator 17 is rotated 90 degrees counterclockwise about the combination weigher body 99A from the A position and moved to the C position, the first azimuth angle provided on the combination weigher body 99A is set. The deviation angle Δθ between the azimuth detected by the sensor 72 and the azimuth detected by the second azimuth angle sensor 73 provided in the C-position operation setting indicator 17 is 90 degrees. When the deviation angle Δθ is 90 degrees, for example, as shown in FIG. 11, in the automatic operation screen 120 displayed on the operation setting display 17, the measurement head group is only 90 degrees from the reference arrangement display (FIG. 10). Appears rotating counterclockwise. That is, the 4th head is arranged at the lowest position, and the 5th head to the 14th head and the 1st head to the 3rd head are arranged in an annular shape sequentially from the fourth head in a clockwise direction. A head group is displayed.

  As described above, the weighing head group displayed on the display unit 17b of the operation setting display 17 according to the azimuth deviation angle Δθ detected by the first azimuth angle sensor 72 and the second azimuth angle sensor 73. The arrangement (phase) of the plurality of weighing heads graphically displayed on the display unit 17b of the operation setting display 17 is viewed from the operator facing the display unit 17b. This is consistent with the arrangement (phase) of the plurality of weighing heads of the actual combination scale 99. Accordingly, the display on the operation setting display 17 is easier for the operator to understand, and the operator can select the weighing head indicated on the display unit 17b of the operation setting display 17 from the actual weighing heads. Can be easily identified.

  In FIG. 12, an example of the maintenance screen 130 displayed on the display unit 17b of the operation setting display 17 is shown. The maintenance screen 130 includes a message display area 131, a head display area 132, and a head configuration display area 133. In the message display area 131 of the maintenance screen 130, “The zero point of the No. 7 head weighing hopper has changed drastically. Check if the weighing hopper of the No. 7 head has adhered to the object. Please "message is displayed. In addition, in the head display area 132 of the maintenance screen 130, pictures of a plurality of measuring heads arranged in an annular shape are displayed, and among them, the seventh head that requires maintenance is displayed by color (shaded). In the head configuration display area 133, a picture of each component of the combination weigher 99 is displayed, and of these, weighing hoppers that require maintenance are displayed by color (shaded). In this way, on the maintenance screen 130, the parts requiring maintenance of the combination weigher 99 are displayed in an easy-to-understand manner using characters and pictures. Also in the head display area 132 of the maintenance screen 130, the arrangement of the displayed weighing heads and the actual arrangement of the weighing heads as viewed from the operator facing the display unit 17b of the operation setting display 17 Therefore, the display on the operation setting display 17 is easier for the operator to understand. Therefore, the operator can easily specify the measuring head instructed by the display unit 17b of the operation setting display 17 from the actual measuring heads, and can definitely and quickly start the maintenance of the measuring head. be able to.

  As described above, in the head circular display area 122 of the automatic operation screen 120 and the head display area 132 of the maintenance screen 130 displayed on the display unit 17b of the operation setting display 17, each weighing head included in the combination weigher 99 is graphically illustrated. In addition, since the arrangement of the displayed weighing heads and the arrangement of the actual weighing heads are consistent with each other as viewed from the operator working while viewing the display unit 17b of the operation setting indicator 17, the weighing heads are aligned. Is easily identified. When a plurality of measuring heads having the same shape are arranged in a ring shape like the combination weigher 99 according to the present embodiment, it is difficult to understand the starting point of the arrangement, and the operator searches for a specific measuring head at a glance. Although the operation setting indicator 17 has the above-described weighing head arrangement display matching function, the operator can find a specific weighing head at a glance, which is particularly useful. However, the plurality of weighing heads included in the combination weigher 99 are not limited to being arranged in an annular shape. For example, even when a plurality of weighing heads included in the combination weigher 99 are arranged in a matrix, the operation setting display 17 has the above-described weighing head arrangement display matching function, so that the operation setting display 17 The arrangement of the plurality of weighing heads graphically displayed on the display unit 17b matches the actual plurality of weighing heads. Thereby, it becomes easy for an operator who works while looking at the operation setting display 17 to find a specific weighing head from a plurality of actual weighing heads.

  In the above description, the operation setting indicator 17 is fixed to the leg 67 of the gantry 65. However, when the operation setting indicator 17 is portable, the position of the operation setting indicator 17 with respect to the combination weigher body 99A. And the orientation can be changed freely. In such a case, the operation setting display 17 is provided with the above-described weighing head arrangement display matching function, so that the operation setting display 17 is graphically displayed following the change in the position and orientation of the operation setting display 17. This is particularly useful because the arrangement of the plurality of weighing heads to be displayed is changed so that the state in which the weighing heads are always easily identified is maintained.

  The combination weigher and the weighing and packaging system according to the present invention are not limited to the weighing hopper, and can be applied when the components provided in the combination weigher are displayed graphically on the display unit of the operation setting display. Thus, it becomes easy for the worker who works while looking at the display unit of the operation setting display to specify the component designated by the display unit.

It is a front view which shows the whole structure of the measurement packaging system which concerns on embodiment of this invention. It is a top view of a measurement packaging system. It is a front view of a combination scale. It is a block diagram of a combination scale. It is a block diagram which shows the control structure of a combination scale. It is a block diagram of a packaging machine. It is a top view of a combination scale. It is explanatory drawing of arrangement | positioning of a measurement head. It is a figure which shows the structure for implement | achieving the arrangement | positioning display alignment function of a measurement head. It is a figure which shows an example of an automatic driving | operation screen. It is a figure which shows the modification of an automatic driving | operation screen. It is a figure which shows an example of a maintenance screen. It is a figure which shows the modification of the structure for implement | achieving the arrangement | positioning display alignment function of a measurement head.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Weighing and packaging system 99 Combination weigher 99A Combination weigher main body 98 Packaging machine 1 Feeding device 2 Level detector 30 Dispersing feeder 50 Linear feeder 7 Feeding hopper 8 Weighing hopper 9 Weight sensor 10 Collecting hopper 11 Collecting chute 12 Collecting funnel 16 Operation controller 17 Operation setting display 65 Base 72 First azimuth sensor 73 Second azimuth sensor

Claims (3)

A combination weigher body including a plurality of weighing heads each equipped with a weighing container, which performs combination weighing and discharges a target weight to be weighed;
An arithmetic controller for controlling the combination weigher body in accordance with preset operating conditions and receiving a measurement value output from the weighing container to perform a combination calculation;
An operation setting display comprising a display unit that inputs an operation to the arithmetic controller and receives an output from the arithmetic controller and displays information on a screen;
A first azimuth angle sensor for detecting the azimuth of the combination weigher body;
A second azimuth angle sensor for detecting the azimuth of the operation setting indicator,
The operation setting indicator is based on a difference in azimuth between the combination weigher main body and the operation setting indicator derived from detection signals of the first azimuth angle sensor and the second azimuth angle sensor. The weighing head is configured to be displayed graphically on the display unit in alignment with the actual arrangement of the plurality of weighing heads as viewed from an operator facing the display unit.
Combination scale. The plurality of weighing heads are arranged in an annular shape,
The combination scale according to claim 1, wherein the operation setting display is configured to display the plurality of weighing heads arranged in an annular shape. A combination weigher according to claim 1 or claim 2;
A packaging machine for packaging the objects to be weighed discharged from the combination weigher,
A weighing and packaging system.