JPS6242019A - Measuring device - Google Patents

Abstract

PURPOSE:To execute rapid measurement by providing a pair of shutters to move in the upper and lower directions at the upstream side and the downstream side of the measuring hopper, and providing the control means to control the rise driving of the upstream side shutter, interlocking with the excitation action in the horizontal direction of the conveying path. CONSTITUTION:By the signal from an arithmetic control part 16 composed of a macro computer, etc., a master shutter driving part 11 to drive master shutters alphaa, alphab and betaa, betab is energized, and the measured substance is supplied to master pool hoppers 3a and 3b. Continuously, by the signal from the arithmetic control part 16, a master gate driving part 3' is energized, and when the master measuring device is alternately used, either of gates 31 and 32 of the master pool hoppers 3a and 3b is opened, the measured substance is measured by the master measuring hopper and the weight is stored in the memory. Next, the changing-over signal is outputted from the arithmetic control part 16 to a multiplexer 14 and the weight from a slave measuring device 2 is stored to the memory. By the weight set by the target weight setting part and the weight from the master measuring device 1, the arithmetic control part 16 operates the assembling target weight of the slave measuring device 2 and executes the assembling arithmetic by the weight from the slave measuring device 2.

Description

[Detailed description of the invention]

(Industrial Application Field) The present invention relates to a weighing device for weighing long objects such as dried noodles. (Prior art) In order to package and take out dried noodles such as soumen and hiyamugi by predetermined weight, conventionally, a master weighing machine that supplies about 90% of the target weight and a sub-weighing machine that supplies the remainder are used. A weighing device with a In this case, multiple needle weighing devices are arranged, and the weight obtained by the slave weighing machine is combined and calculated to supply the shortfall in the target weight obtained by the master weighing machine, thereby achieving highly accurate weighing. is configured to do so. (Problems to be Solved by the Invention) By the way, the conventional weighing device as described above applies horizontal vibration to the conveyance path of the main feeding device in order to feed a predetermined amount of weighing items into the pool hopper of the main weighing machine. Transfer the weighed object while feeding,
Furthermore, a pair of shutters are provided which supply and stop the object to be weighed by moving up and down on the upstream and downstream sides of the conveyance path. The drive signal for this shutter is output from the drive signal for the timing hopper provided on the needle setting machine side.
It was output after the batch weighing was completed and the next weighing item was discharged from the weighing hopper of the master weighing machine to the packet conveyor. However, since the drive signal for such shutters is given independently of the conveyance path vibration operation of the feeding device, the total number of objects stored in line between the shutters, that is, the objects to be weighed to be fed into the pool hopper, is There was a problem in that a certain amount of the weighing object was not supplied to the master weighing machine due to variations in the weight of the weighing machine. (Means for solving problem (2)) Therefore, in the present invention, one or more master weighing machines that weigh a predetermined amount of objects with respect to a set target weight;
In a weighing machine that performs combined weighing to measure the shortfall from a set target weight, there are To provide a metering device, characterized in that a pair of shutters that move up and down is provided, and a control means is provided for controlling the upward drive of the shutter on the downstream side in conjunction with the horizontal excitation operation of the coating path. This solves the above-mentioned problems. (Function of the invention) In the present invention, a total of t to be charged into a pool hopper or a weighing hopper on the upstream and downstream sides of the conveyance path of the parent supply device:
A pair of shutters are provided for once aligning and storing objects, and the upward drive of the shutter on the first stream side of the shutters is controlled in conjunction with the excitation operation of the m feed path. Therefore, a fixed amount of the object to be weighed is always stored between the shutters, allowing quick and accurate weighing. (Example) An example of the present invention will be described below using one drawing. FIG. 1 is a schematic layout diagram of the present invention. In FIG. 0, two parent supply positions A' are family shutters αa, αb and family shutter β
a and βb, and moves up and down in the direction of the arrow to supply long objects to be weighed to the standard pool hoppers 3a and 3b. And it
When using the parent weighing machine alternately like this, use the pool hopper 3a. Game 3b) Either 31+32 is opened. A long object to be weighed is supplied to either the current weighing hopper la or lb. The shutters αa, αb and βa, βb are configured to be movable in the horizontal direction of the arrow in order to change the shutter width, as will be described later. The master weighing machine 1 is composed of one current weighing hopper and one weight sensor (not shown), etc. The main weighing machine 1 has a current weighing hopper 1a, and the weighing machine 1 has a current weighing hopper 1b. ma or mb is discharged into a packet 7 and transported by a brush conveyor 8. For example, five child feeding devices B' are arranged downstream of the parent feeding device A' in the direction of arrow movement of the packet conveyor. Each child feeding device B' has child shutters α and β that move up and down, and
The long object to be weighed is supplied to the child pool hopper 4. The secondary pool hopper 4 opens the gate 4a or 4b and supplies the object to be weighed to the indicator machine 2, which is composed of one early weighing hopper 5 and one weight sensor (not shown), and performs a current weighing process as described later.
When 111 are used alternately, the wave measuring machine 1 detects the weight of the object to be measured, which is supplied in a predetermined amount relative to the set target weight. Aimed weighing is carried out using weighing machine 2, and the optimum combination is quickly deposited.The object to be weighed is discharged from early weighing hopper 5 on the scale to timing hopper 6, and the weighing material is weighed by main weighing machine 1 and discharged into packet 7. When the object, for example, the object to be weighed ma, is transferred to the position of the timing hopper 6, the timing hopper 6 is opened and the object to be weighed from the positioning needle machine 2 is discharged into a packet 7. The weighed objects are further transferred to the weighing hopper 9 by the packet conveyor 8, and when the weighed objects in the packet 7 are the correct amount with respect to the set target weight, the weight gate 9a is opened and the weighed objects are fed to the package #110. , predetermined packaging processing is performed. When it is defective, the defective gate 9b
is opened and the weighed items in the packet are rejected as defective items. FIG. 2 is a schematic block diagram of the present invention. Next, this block diagram will be explained with reference to FIG. For example, a signal from an arithmetic control unit 16 composed of a microcomputer or the like is used to activate the visual shutter αa, αb or β.
The parent pool hopper 11 that moves a and βb is energized, and the object to be weighed is supplied to the parent pool hoppers 3a, 31). Next, a signal from the arithmetic control section 16 causes the group gate drive section 3' to
If the parent pool hopper 3a,:! bc7) game) 31+
32 is opened, the object to be weighed is supplied to the hopper in the master weighing machine 1, the object to be weighed is launched here, and when the timing signal from the packaging machine 10 is sent to the calculation control section 16, the master weighing machine It from l is input to the arithmetic control unit 16 through the multiplexer 14 and A/D converter 15, and is stored in a predetermined area of the memory. In addition, a switching signal is output from the calculation control unit 16 to the multiplexer 14, and the total weight from the aircraft 2 is sequentially extracted from the multiplexer 14, and the A/D
The signal is input to the arithmetic g4J unit 16 through the converter 15 and stored in a predetermined area of the memory. The arithmetic control unit 16 calculates a combined target weight for the weighing machine 2 based on the set target weight set by the target weight setting unit 18 and the weight from the parent weighing machine 1, and calculates the combined target weight of the weighing machine 2. Executes the combinatorial operation. Note that the deviation of the northern limit weight with respect to the set target type is preset in the 1-limit weight/clear setting section 17.1For example, if the setting port Wlft is 500 g and you want to set the upper limit weight to 505 g, the upper limit weight setting section 17 is set. The arithmetic control unit 16 sets the deviation of 5g.
The upper limit weight deviation is inputted in advance from the upper limit ball amount setting unit 17, and the deviation from this eye and the weight is within the upper limit weight deviation when the combination weight is greater than or equal to the combination i standard @ amount and the combination target 1:
A set of combinations that are equal to or closest to the quantity are selected as the combination of the correct quantity. At this time, when selecting the ■9 combinations, select the two quick gauges ff that were bare to be weighed from the same pool hopper 4 in the previous weighing.
If both 14112 and 14112 are selected as a positive combination, the one aircraft with this bear is excluded from the combination calculation.2. Among the friends and the remaining one aircraft, the two bare aircraft 2 are made so that they do not participate in the combination. In other words, there is no duplication. Also, in the previous weighing, the two 1s that were bearish
If there is no total matching machine 2 selected as a positive combination, in this combination-ti calculation, the total number of all the machines is W a, and the two long needle plates 2 in the famous bear are both There is no duplication, which does not participate in the combination operation, and one bear double, in which only the two children of one pair of bears participate in the combination operation. This is because the zero point adjustment is performed on one of the weighing machines for double discharge, so that the zero point adjustment is not biased only to a specific weighing machine, but can be performed on the average for the remaining needle F5 machines. When a correct combination is determined, a total of four loads are discharged from one machine 2 selected for that combination and put into a timing hopper 6, weighed by a master weighing machine, and transferred by a packet conveyor 8. The calculation amount V4 part IC determines that the position of the packet 7 that has arrived has reached the bottom of the timing hopper 6, sends a signal to the timing hopper drive part 6', and the timing hopper 6 discharges the weighed object to the packet 7. do. The object to be weighed in the packet 7 is put into the sorting hopper 9, and if the object to be weighed in the packet 7 is the correct amount, a signal to open the correct amount gate 9a is sent to the arithmetic control section 16 and the sorting hopper drive section 9. If it is defective, a signal to open the defective gate 9b is sent from the arithmetic control section 16 to the sorting hopper drive section 9'. Positive U
The objects to be weighed discharged from the gate 9a are subjected to predetermined packaging processing by the packaging machine 10, and the objects to be weighed discharged from the defective gate 9b are returned to the parent feeding device A° or the child feeding device B', etc. Measures will be taken. Note that the conveyor drive section 8' intermittently transports the packet conveyor 8 at a predetermined speed based on a signal from the arithmetic control section 16. The parent shutter cap change drive unit 13 and the child shutter width change drive unit 19 are energized by a command from the arithmetic control unit 16 when changing the width of the parent shutter or the child shutter. FIG. 3 is an explanatory diagram of the outline of the memory within the arithmetic system W116. Figure 3 (a) shows the parent weight memory P M that stores the weight of the current weight of Kotsuki 11.

[Area PMI that stores the weight of the object to be weighed that is currently discharged from hopper la or 1b, and PMI that stores the weight of the object that was discharged last time.
M2 is provided. Figure 3 (b) shows a correct/incorrect flag memory FM that stores whether a correct amount of combination was obtained for the target weight of the combination or whether the combination was defective by the combination calculation using the needle position amount @2. , an area FMI for storing the correct amount and defective amount of the weighed object discharged from the timing hopper 6, and an area for storing whether the weighed object in each packet 7 transferred by the packet conveyor 8 is correct or defective. FM2. FM5 . . . and an area FMm for storing the correct amount and defective amount of objects to be weighed into the hopper 9. 3(c) and 3(d) show the counter memory for the number of discharges from the slave weighing machine 2, and FIG.
) are supply amount change flags of the parent weighing machine 1, which will be described in detail later. FIG. 4 is a flowchart of the weighing cycle of the weighing device of the present invention. Next, the operation of the weighing cycle will be explained using this flowchart. (1) When it is confirmed that there is a timing signal from the packaging machine 10 (step P1), parent weight processing is executed (step P2). In the following steps, the decision is made as to whether or not to use the weighing machine (in this case, only the slave weighing machines will be used). Next, the parent weight memory PM is shifted by 1, and the weight of the parent weighing machine that did not discharge the previous time, for example, the weighing machine 1 having the weighing hopper 1b, is input, and the area of the memory PM1 is At the same time, the corresponding discharge flag is saved (step P3). (2) Subsequently, the weights from each quick-count long plate 2 are sequentially input and stored in an area of a memory (not shown) (step P4
), the arithmetic control unit 16 calculates the combined target weight of the slave weighing device 2 from the set target weight set by the target weight setting unit 18.
The amount of gL stored in the current weighing memory PM2, that is, the amount of gL discharged from the previous master weighing machine 1 is subtracted to find it (step P5). Next, it is checked whether there was a double discharge last time, that is, whether weighed items were discharged from the bare slave weighing machine 2 of the same slave weighing machines (step P6). If not, there is no duplication in which two slave weighing machines 2 in each pair participate in the combination calculation for all slave weighing machines, and one pair duplication in which only one pair of slave weighing machines 2 participate in the combination calculation. Then, perform the combination calculation and select the combination P that is more than the combination target weight and within the upper limit weight deviation.
A set of combinations equal to or closest to 4 weights (equal weight combination)
(Step P7). If there is a double discharge from the previous time, the slave weighing machine 2 other than the bear from the previous double discharge performs a combination calculation without the double discharge, and the combination target is determined to be more than the combination target weight and within the upper limit weight deviation. Find a combination (correct amount combination) that is equal to or closest to the weight (step Pa). Next, check whether the parent supply amount change flag is rHJ (step P9). At this stage, the parent supply amount is still has not been changed, so proceed to step F'to and check whether a positive combination has been obtained (step Pi
o) Φ (3) If a positive quantity combination is found, 1 Add the number of selected sub-weighing machines 2 to the cumulative memory DM and store it (Step Fil) 11 Next, set the discharge number counter memory C1 to 1
Increment (step Pl 2 ) a Next,
Step PL to check whether the value of the counter C1 is a predetermined number, for example, 6 times! S), repeat the process from step P'22, which will be described later, until a predetermined number of times is reached, and when the value of the counter C reaches a predetermined number, perform the primary calculation (step P14), that is, the counter memory C1
If the value of DM/C, which is obtained by dividing the value of the cumulative memory DM of the number of ejector weighing machines by the count number of , is within a predetermined range, for example, 362
Determine whether it is within the range of ~3.8. here,
The reason for selecting the value of DM/C between 3.2 and 3.8 is that, for example, when there are 10 slave weighing machines 2 and a combination calculation is performed with no duplication and 1 pair duplication, the maximum number of units that can be discharged is is 5
~6 units, and the one with the best combination accuracy is approximately 1/6 of them.
This is the case where 3 to 4 units, which is 2, are used for discharging. This is because it is known empirically. Therefore, in step P14, it is checked whether the predetermined number, for example, the average number of discharge (selected) weighing machines for six times, is within the range of 3.2 to 3.8. DM/C, value is 3.2~3
．． If it is within the range of 8, the counter C and the cumulative memory D
Clear M to zero (step Pu5) and proceed to step P'
Proceed to step 22. If the value of DM/C is 3.2 or less, the average number of slave weighing machines 2 selected is small. (Step P17), for example, by tightening the distance between the parent shutters αa and αb by one pitch to reduce the supply amount, and prematurely increase the number of shutters selected by the shutter 2.
The parent supply amount change flag BM is set to rHJ and the discharge number counter memory C2 is cleared to zero. Here, the discharge counter memory C2 is a memory for counting the number of discharges until the weighed object in the parent pool hopper and the current weighing hopper for which the shutter width is changed is discharged. If the value of DM/C is 3.8 or more, output a signal to widen the family shutter width.Step Pu6), change flag B
Set M to "H" and clear the counter c2 to zero (step Pea). (4) In step P9, 1 change flag BM is rHJ
When it is confirmed that the process in step Pts has been completed, the value in the counter memory C2 is incremented by 1 and the process proceeds to step P. 9) Check whether the counter memory C2 has reached 4 (step P2Q) , lb is completely discharged (that is, until the total of 4 times t), addition and storage are not performed in the cumulative memory DM. When the value of counter memory C2 reaches 4, counter C1
, clear the cumulative memory DM to zero (step P2+),
The change flag BM is set to "L" (step P22). Next, the slave shutter width changing drive section 19 is operated in accordance with the measured value to control the slave shutter width change (step P22'). (5) For processing below the opening, first check whether or not there was any double discharge last time (step P25), and if there was double discharge last time, quick measurement 4 on the non-input side of the bear! 2 (In one needle length cycle, the object to be weighed is only put into the acid metering hopper of one of the two secondary weighing machines 2 with double discharge, and the weighing material is only put into the acid metering hopper of the other secondary weighing machine 2. μ hopper is empty) Execute zero point adjustment (Step P24)
6. Next, the entire correct/incorrect flag memory FM is shifted by one step (step P25), and the correct/incorrect result of the combination operation is stored in the memory area FM (step P2S). That is, if the combination is correct, "H" is stored in the memory area FM, and if the combination is defective, "L" is stored in the memory area FM. Next, in step Pz7), it is determined whether the flag memory FMm is rHJ, that is, whether the weighed object in the sorting hopper is correct or defective.
If FMm is rH4, output the normal gate open signal for the sorting hopper (Step P2B), and if FMm is not r)(J, output the defective gate open signal for the sorting hopper (Step P29). (6 ) Next, a timing hopper open signal is output (step P30), and a hopper open signal is output for the master weighing machine 1 whose discharge flag is set (step P5).
+ ), discharge the weighed object into packet 7. Subsequently, an operation signal for the parent shutter αb or βb corresponding to the weighing and clearing machine l that discharged the weighed object is output (step P32), and the parent shutter αb or βb is moved up and down to close the parent shutters αb and α.
A to be measured is supplied between parent shutters βb and βa, and it is checked whether the flag memory FM is "H" (step Psg). Regarding the vertical movement of parent shutter αb, This will be described later using the flowchart shown in FIG. If FM is "L", it is a case of poor combination.
In this case, the early weighing hopper is not opened, and the packet 7 containing only the weighing items discharged from the master weighing machine is intermittently transferred to the sorting hopper 9 every time a shift signal is input to the conveyor drive section 8'. (When FMl is rHJ, a correct amount combination has been obtained, so output a premature weighing hopper open signal according to the correct amount combination. Step P54), and discharge the weighed object from the premature hopper to the timing hopper. Next, an open signal is output for the gate of the parent pool hopper 3a or 3b on the side corresponding to the current total -i*i that discharged the weighed object (Step P55), and from the parent pool hopper 3a or 3b to the current product hopper ]a Or, put the object to be weighed into 1b. Continuing, output a signal to shift the packet conveyor 8 by one step (step P56), and output an opening signal for the gate 4a or gate 4b of the secondary pool hopper 4 on the side corresponding to the secondary needle length hopper that discharged the weighed object (step P56). Step P37), the object to be weighed is charged from the child pool hopper 4 to the early hopper. Furthermore, an operation signal is output for the child shutter β of the child feeder B' corresponding to the child pool hopper with the open gate (step 25), and the child shutter β is moved up and down to create a gap between the child shutters β and α. The object to be weighed is supplied, an operation signal for the child shutter α corresponding to the operated child shutter β is output (step P59), and the child shutter β is transferred from the child feeding device B' to the pool hopper 4.
The object to be measured is supplied between and α. Finally, an operation signal for the parent shutter αa or βa is output, and the object to be weighed between the parent shutters is supplied from the parent supply device A' to the parent pool hopper 3a or 3b. Step P4G) is then returned to 1). FIG. 5 is a flowchart showing the processor +111 for vertical movement control of the parent shutter, and FIG. 6 is an explanatory diagram of a mechanism for detecting the horizontal vibration motion of the conveyance path of the parent supply device. Next, this flowchart will be explained. (1) When the upstream shutter αb of the main shutter is lowered, start the main shutter lowering time → timer and reset the operation completion flag. In this situation yE, check that the operation completion flag is not set. Check step Q1) and confirm the time-up of the parent shutter down time timer (step Q2). At first, there was no time up, so I moved to a process other than this flowchart,
After a certain period of time, step Q1. While executing step Q2 and repeating these processes, the parent shutter down time tie-boo times up, and step Q2 becomes YES. (2) Check whether the shutter synchronization switch (not shown) is on or off (step Q3); if this switch is on, proceed to step Q1. In step Q4, it is checked whether the sensor has detected a predetermined position. This process is performed by using a sensor to detect the rotation of a disc having a notch attached to the horizontal vibration drive shaft of the transport path, as shown in Fig. 6. The shaking causes this disk to rotate once. If the sensor does not detect it, the process moves to a process other than this flowchart, and after a certain period of time, steps Qz, Q2, Q! When the sensor detects a predetermined position, that is, a notch while repeating these processes, the parent shutter αb is raised (step Q5) and an operation completion flag is set (step Q6).
, and the parent shutter βb also operates as shown in this flowchart. In this way, the excitation operation in the horizontal direction of the conveyance path and the upward drive of the shutter are operated in synchronization. Further, in the above embodiment, the object to be weighed is supplied from the parent supply device A' to the parent pool hoppers 3a and 3b, but the parent pool hoppers and bars 3a and 3b are not provided, and therefore, the object to be weighed is directly fed from the parent supply device A'. Weighing hopper la. It is also possible to supply the object to be measured to ib. (Effects of the Invention) As explained above, the present invention uses one or more weighing machines that weigh approximately a predetermined amount of objects to be weighed relative to a set target weight, and performs combined weighing to achieve a set target weight. In a device consisting of multiple sub-needle length machines that weigh the shortfall, a pair of shutters that move up and down are provided on the upstream and downstream sides of the conveyance path through which the object to be weighed is put into the pool hopper or weighing hopper of the current total length machine. Since a control means is provided to control the upper A drive of the shutter on the upstream side in conjunction with the horizontal excitation operation of the conveyance path, it is possible to stably supply a constant amount of JB and objects to the current length machine. This allows quick and accurate weighing.

[Brief explanation of the drawing]

FIG. 1 is a schematic layout diagram of the present invention, FIG. 2 is a schematic block diagram of the present invention, FIG. 3 is an explanation of memory [4], FIG. 4 is a flowchart, and FIG. 5 is a parent server. The processing procedure for evening L downward movement control is ir<t flowchart, and FIG. 6 is an explanatory diagram of the detection mechanism. ■... Current total ψ machine, 2... Quick total utt, 3 a,
3 b - Parent pool hopper, 3'... Parent gate moving part, 4... Child boule hopper, 4'... Child gate drive part, 5... Early hopper, 6... Timing hopper , 6'... Timing hopper drive section, 7... Packet, 8... Packet conveyor, 8'... Conveyor drive section, 9... Sorting hopper, 9'... Sorting hopper drive Part, 10... Packaging machine, 11... Parent jitter drive unit,
12... Child shutter drive unit. 13... Parent shutter width changing drive unit, 14... Multiplexer, 15... A/D converter, ■6... Arithmetic control unit, 17... Hi-limit score setting unit, 18... - Double setting section, 19...Sub shutter width changing drive section. Patent Applicant Ishida Kouki Seisakusho Co., Ltd. Agent Patent Attorney Minoru Tsuji Figure 3
[Wataru] Ejection count count memory Figure 4 (t of f)

Claims (1)

[Claims] Weighing approximately the predetermined amount of the object for the set target weight 1
In a weighing machine consisting of one or more master weighing machines and a plurality of slave weighing machines that carry out combined weighing to measure the shortfall from the set target weight, the weighing object is put into the pool hopper or weighing hopper of the master weighing machine. A pair of shutters that move up and down are provided on the upstream and downstream sides of the conveyance path, and a control means is provided for controlling the upward drive of the shutter on the upstream side in conjunction with the horizontal excitation operation of the conveyance path. A measuring device characterized by: