JP2001004436A - Combination metering device, and metering and bag manufacturing and packing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lighten the operation burden on an operator in the total discharging process of the combination metering device. SOLUTION: This metering device is equipped with metering hoppers 14, a combination arithmetic part 51a, and a combination metering control part 51. Each metering hopper 114 meters articles. The combination arithmetic part 51a performs combination operation based upon the weight of articles supplied to the respective metering hoppers 114 and selects a metering hopper 114 so that the total weight of the articles is within a permissible range. The combination metering control part 51 discharges articles from the selected metering hopper 114 when the combination operation of the combination operation part 51a is effected. If the combination is not effected and a metering hopper 114 can not be selected even after supply operation to the metering hoppers 114 is repeated as many times as specified, the total discharging process for forcibly discharging articles in all the metering hoppers 114 is automatically performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combination weighing apparatus, a weighing and bag making and packaging system, and more particularly to a combination weighing apparatus for performing a total discharge process when a combination operation is not established, and a weighing and measuring apparatus provided with the combination weighing apparatus. The present invention relates to a bag making and packaging system.

[0002]

2. Description of the Related Art There are a large number of products such as confectionery, fruits and vegetables, prepared dishes, dried noodles, processed foods, etc., which are packaged in a predetermined weight or quantity and distributed and sold. After a predetermined amount is set, the bag is generally packed by a packaging device. A system for weighing and bagging such products mainly includes a weighing device that performs combination weighing so that the product has a set weight or quantity, and a product in which a film is formed and a predetermined amount is set by the weighing device. And a bag making and packaging device for bagging the bag.

FIG. 1 shows an example of the weighing and bagging system (hereinafter referred to as a weighing and bag-making and packaging system) and the devices before and after the system. Here, the goods are first conveyed above the weighing device 110 by the supply conveyor device 101. Next, the articles are placed on the dispersion feeder 111 and are radially dispersed by the vibration of the dispersion feeder 111. Then, when the products are sent to a plurality of pool hoppers 113 circumferentially arranged via a radiation trough 112 following the dispersion feeder 111, the products are temporarily pooled there, and then the products are positioned below each pool hopper 113. Into the measuring hopper 114. The weight of the product put into the weighing hopper 114 is measured by a load cell (weight detector) provided for each weighing hopper 114. Then, based on the measured weight of the product in each weighing hopper 114, a combination operation is performed to determine which weighing hopper 114 from which the product should be discharged to obtain a weight or quantity within an allowable range. The product discharges the product to the collective discharge chute 115 (see FIG. 2).

On the other hand, a bag making and packaging device 120 disposed below the weighing device 110 is a device that fills and wraps the bags with the products discharged from the weighing device 110 while manufacturing the bags. The main configuration of the bag making and packaging apparatus 120 is shown in FIG. This configuration is a configuration of what is called a vertical pillow packaging machine. In the bag making and packaging apparatus 120, first, a sheet-like film Fm drawn from a film roll 128 (see FIG. 1) is formed into a tubular shape by a former 121 and a tube 122, and is sent downward by a pull-down belt mechanism 125. The overlapped vertical edges of the film Fmc are heat-sealed (heat-sealed) by the vertical sealing mechanism 123. And the weighed product is the tube 1
When the film is filled into the cylindrical film Fmc through the tube 22, a horizontal sealing mechanism 124 disposed below the tube 122 performs a horizontal sealing over the upper part of the preceding bag and the lower part of the succeeding bag, thereby forming a horizontal sealing part. Is cut by a cutter built in the horizontal seal mechanism 124.

[0005] The bag B filled with the products is placed on the conveyor 130 by the inclined guide plate 129, and is conveyed to the weight checker 140 in the subsequent process.

[0006]

In the above-described weighing and bag-making and packaging system, during normal operation, the weighing device and the bag-making and packaging device exchange timing signals as ON / OFF signals. Products are automatically packed in bags of a predetermined size one after another. On the other hand, when there is no more product to be supplied to the weighing device, the operator stops the normal operation of the weighing device and the bag making and packaging device at an appropriate timing while observing the operation of the weighing device, and all of the weighing device are stopped. The switch (button) for performing the entire discharging process for discharging the product in the weighing hopper is manually pressed.

More specifically, when there are no more products to be supplied to the weighing device, the quantity of the products to be put into each weighing hopper decreases, and eventually the combination calculation is not established. If the combination operation is not established, additional supply to the weighing hopper is required. However, if there is no product to be supplied, the combination operation is not established forever. During this time, the dispersion feeder, the radiation trough, the pool hopper and the like of the weighing device keep idling. The operator who visually observes this state and determines that normal operation cannot be continued,
Stop the weighing device and the bag making and packaging device, wait for the cylindrical bag in the state before the upper portion is horizontally sealed in the bag making and packaging device, turn on the full discharge switch on the operation panel of the weighing device, and perform each weighing operation. The process shifts to the process of forcibly discharging the product in the hopper (all discharging process). Then, for example, three weighing hoppers sequentially discharge products in order. While observing the state of the discharge, the operator horizontally seals the upper part of the bag as a disposal bag when the product is accumulated in a normal size bag or a bag having a length twice as long as the normal size.

[0008] As described above, in the conventional weighing device, the work load of the operator in the entire discharge process is large, and unless the operator is near the weighing device, the weighing device runs idle when there is no more supplied product. Continue. Also,
In the conventional full discharge process, a normal-size bag or a bag having a length twice as long as the normal size is produced and the discharged products are packed in the bag regardless of the amount of the discharged product. Therefore, there is a risk that the product to be discharged will be processed with a double bag even though the product can be sufficiently packed with one bag, or if the product is not double back, the product will be processed with one bag even if the product protrudes. In this case, there is a problem that the bag cannot be sealed due to waste of the film or the protruding product.

An object of the present invention is to reduce an operator's work load in the entire discharge process of a combination weighing device.
Another object of the present invention is to make it possible to efficiently and efficiently pack products discharged by the entire discharge process.

[0010]

According to a first aspect of the present invention, there is provided a combination weighing apparatus including a plurality of weighing units, a supply unit, a calculation unit, and a control unit. Each weighing unit weighs a product. The supply unit supplies the commodity to the plurality of measurement units. The calculation unit performs a combination calculation based on the weights of the products supplied to the plurality of weighing units, and selects at least one weighing unit such that the total weight or the total quantity of the products is within the allowable range. I do. However, usually, a plurality of measuring units are selected in combination. The control unit causes the commodity to be discharged from the weighing unit selected by the calculation unit when the combination calculation of the calculation unit is established. In addition, when the combination operation of the operation units is not established and the measurement unit cannot be selected even if the supply operation from the supply unit to the measurement unit is repeated a predetermined number of times or for a predetermined time, the control unit performs a full discharge process. The all-discharge process is a process for forcibly discharging commodities in all of the plurality of measuring units.

In the combination weighing device according to the present invention, the weighing unit measures the weight of the product supplied from the supply unit, and the calculation unit performs the combination calculation based on the measured weight. Then, usually, the merchandise is discharged from the weighing unit selected to have a predetermined weight or quantity. In addition, when the combination calculation is not established even when the supply of the product from the supply unit to the weighing unit is repeated, control is performed so as to shift to the full discharge process.
In the full discharging process, when it becomes impossible to discharge a product of a predetermined weight or quantity, all the products in the respective weighing units are forcibly discharged at that time.

In this case, as described above, control is performed so as to automatically shift to the full discharge processing under the condition that the combination calculation is not established even if the supply of the product from the supply unit to the weighing unit is repeated. I have. This eliminates the need for the operator to manually switch to full discharge processing as in the past,
It is possible to more appropriately shift to the full discharge process, and it is possible to solve the problem that the combination weighing device continues to wastefully idle and the total discharge process is not performed forever even when there is no operator near the device.

According to a second aspect of the present invention, there is provided the combination weighing device according to the first aspect, wherein the control unit is configured to repeat the operation of supplying the commodity from the supply unit to the weighing unit a predetermined number of times or for a predetermined time. If the combination operation of is not established and the total weight or the total quantity of the products is less than the allowable range,
Perform all discharge processing.

According to a third aspect of the present invention, there is provided the combination weighing apparatus according to the first or second aspect, wherein the control unit controls the operation of the arithmetic unit even if the supply operation from the supply unit to the weighing unit is repeated a predetermined number of times or for a predetermined time. In the case where the combination operation is not established and the weighing unit cannot be selected, the entire discharging process is performed, and the weight data of the compulsoryly discharged commodities or data representing the quantity of commodities based on the weight data (hereinafter referred to as weight data, etc.) ) To the product discharge destination.

Here, during the entire discharge process, the weight data of the product is transmitted to the discharge destination of the product to be forcibly discharged. As a result, the products discharged by the full discharge process are efficiently processed at the discharge destination based on the weight data and the like. A weighing and bag making and packaging system according to claim 4 includes a combination weighing device, a bag making and packaging device, and a control device. The combination weighing device is the combination weighing device according to claim 3. The bag making and packaging apparatus is an apparatus that manufactures bags from a film, packs the products discharged from the combination weighing apparatus into bags, and packs the bags. The control device determines the size of the bag manufactured by the bag making and packaging device using the weight data and the like.

In the system according to the present invention, when a combination operation is established in the operation section of the combination weighing device, a product having a weight or quantity within a predetermined range is discharged from the combination weighing device to the bag making and packaging device, and Are packed in a bag making and packaging apparatus. On the other hand, when the combination calculation in the calculation unit of the combination weighing device is not established, the process shifts to the entire discharge process, and the product is forcibly discharged from the combination weighing device to the bag making and packaging device. At this time, since the weight or quantity of the product discharged from the combination weighing device is not within the predetermined range,
The normal bag size produced by the bag-making and packaging apparatus may not match the amount of compulsory discharged products. However, in this case, the size of the bag is determined using the weight data of the commodities discharged by the system controller, so that the bag discharging of the commodities discharged by the full discharging process is performed efficiently in the bag making and packaging apparatus. Will be performed without waste.

A weighing and bag making and packaging system according to claim 5 is the system according to claim 4, wherein the control device comprises:
Before the combination weighing device performs the full discharge process, the normal operation of the bag making and packaging device is stopped, and the bag making and packaging device prepares a bag for receiving the commodities that are forcibly discharged by the full discharge process.
Here, even if the control unit of the combination weighing device repeats the supply operation from the supply unit to the weighing unit a predetermined number of times or for a predetermined time, the combination calculation of the calculation unit is not established and the weighing unit cannot be selected. Is performed, the bag making and packaging apparatus prepares bags in advance so that the commodities that are forcibly discharged by the full discharging process are accepted by the bag making and packaging apparatus. By performing such control, it is not necessary for the operator to manually operate the bag making and packaging apparatus so that compulsorily ejected products are packed in a bag when the entire discharging process of the combination weighing apparatus is started. It is possible to automatically perform processing from the entire discharge processing of the apparatus to bag filling of the discharged goods in the bag making and packaging apparatus.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 4 shows a weighing, bag making and packaging apparatus (measuring and bag making and packaging system) 1 according to one embodiment of the present invention. This measuring bag making and packaging apparatus 1 is a measuring apparatus 1 shown in FIG.
10 and an apparatus in which the bag making and packaging apparatus 120 is integrated.
This apparatus 1 combines and weighs potato chips (products) supplied from a supply conveyor apparatus 101 (see FIG. 1) into a weight within a predetermined range, and packs them in a bag for continuous production. It is a device that moves.

<Outline of Apparatus> The measuring and bag making and packaging apparatus 1 includes a measuring apparatus 110, a bag making and packaging apparatus 120, and a control device 50 (see FIG. 5) for controlling these. Further, an operation switch 70 is arranged on the front surface of the device 1, and a liquid crystal operation display 60 showing an operation state of the device 1 is arranged at a position where an operator who operates the operation switch 70 can visually recognize the operation switch 70. (FIG. 4
reference). A touch panel is overlaid on the operation display 60, and the operator can operate the apparatus 1 by touching the operation display 60.

<Structure of weighing device> Since the structure of the weighing device 110 is the same as that of the weighing device 110 shown in FIGS. 1 and 3, the weighing device 110 will be described with reference to FIGS.
Will be described. The weighing device 110 mainly includes a conical dispersion feeder 111 disposed directly below the potato chips supply position of the supply conveyor device 101, and a dispersion feeder 1
It comprises a plurality of radiation troughs 112 arranged around the periphery 11, a plurality of pool hoppers 113, a weighing hopper 114, and a collecting discharge chute 115.

The dispersion feeder 111 is vibrated by a vibrating device, and the potato chips supplied from the supply conveyor device 101 on the upper surface of the dispersion feeder 111 move while being dispersed to the radiation trough 112 by the vibration. Each radiation trough 112 is also vibrated by another vibrating device, and moves the potato chips outward and sends them to the pool hopper 113.

The pool hopper 113 has a radiation trough 112.
, And temporarily pools the potato chips, opens an opening / closing gate provided at a lower portion in accordance with a command from the control device 50 described later, and supplies the potato chips to the weighing hopper 114. Below the pool hopper 113, a measuring hopper 114 is provided. Weighing hopper 1
Similarly to the pool hopper 113, a plurality of 14 are arranged along the circumferential direction (see FIG. 4). Each of the weighing hoppers 114 has a load cell 114b (see FIG. 6) for measuring the weight of the potato chips in the hopper. A gate 114a is provided.

The collecting / discharging chute 115 collects potato chips dropped from the respective weighing hoppers 114 and drops them into a tube 122 of a bag making and packaging apparatus 120 described later. <Configuration of Bag Making and Packaging Apparatus> The bag making and packaging apparatus 120 is mainly divided into a bag making and packaging section and a film supply section. The bag-making and packaging section is a section for performing heat sealing of an opening portion in a state where a bag is manufactured and filled with the weighed potato chips, and a former 121, a tube 122, a vertical sealing mechanism 123, It is constituted by a seal mechanism 124 and the like. This bag-making and packaging unit is arranged directly below the weighing device 110. On the other hand, the film supply unit is provided adjacent to the bag making and packaging unit, and a film roll 128 is set. The roll 128 supplies the sheet-like film Fm to the film forming mechanism including the former 121 and the tube 122 of the bag making and packaging unit.

The bag making and packaging portion of the bag making and packaging apparatus 120 mainly includes a forming mechanism for forming a film fed in a sheet shape into a tubular shape, and a tubular film (hereinafter, referred to as a tube). Belt mechanism 12 for transporting to
5, a vertical sealing mechanism 123 that vertically seals (heat seals) the overlapping portion of the cylindrical film, and a horizontal sealing mechanism 1 that closes the upper and lower ends of the bag by horizontally sealing the cylindrical film.
24.

The forming mechanism mainly comprises a former 121 and a tube 122. Tube 122
Is a cylindrical member, and the upper and lower ends are open. The opening at the upper end of the tube 122 is
Potato chips discharged from the area fall. The former 121 is arranged so as to surround the tube 122. The shape of the former 121 is the sheet-like film Fm sent from the film supply unit 6.
(See FIG. 3) is formed into a cylindrical shape when passing between the former 121 and the tube 122.

The pull-down belt mechanism 125 is a mechanism for sucking the tubular film Fm wound around the tube 122 and transporting the film downward, and is mainly composed of a driving roller and a driven roller, and a belt having an absorbing function. . The vertical sealing mechanism 123 heats the overlapping portion of the tubular film wound around the tube 122 while pressing the overlapping portion against the tube 122 with a constant pressing force, and seals vertically. The vertical seal mechanism 123 includes a heater, a heater belt (vertical seal portion) which is heated by the heater and comes into contact with the overlapping portion of the tubular film.

The horizontal seal mechanism 124 is disposed below the forming mechanism, the pull-down belt mechanism 125, and the vertical seal mechanism 123. The horizontal sealing mechanism 124 sandwiches the cylindrical film Fmc between the pair of sealing jaws rotating in a D shape and applies heat to perform heat sealing. The horizontal sealing mechanism 124 includes a preceding tubular film Fmc and a subsequent tubular film F
A built-in cutter device (not shown) for separating mc from mc is provided.

<Structure of Control Device> The control device 50 is a device that performs overall control of the device 1, and as shown in FIG. The apparatus includes a bag making and packaging control section 52 for performing local control of the bag and packaging apparatus 120, and a main control section 53 for controlling operation over both apparatuses 110 and 120. The main control unit 53 mediates the exchange of a timing signal, an error signal, weight data, and the like between the two control units 51 and 52, receives an operation input from the operator via the operation display 60 and the operation switch 70,
The status of the device 1 is also displayed to the operator.

FIG. 6 shows details of the combination weighing control section 51. The combination weighing control unit 51 is a control sequence or a control program using the CPU,
a, selected hopper opening / closing command section 51b, total discharge processing command section 5
1c, a zero point adjustment processing command section 51d, and the like. The combination calculation unit 51a receives, via an amplifier, a filter, or the like, a signal indicating a weighing result output from the load cell 114b that measures the weight of each weighing hopper 114. Then, a combination calculation is performed based on the weight of the potato chips in each weighing hopper 114, and the weighing hopper 114 is selected so that the total weight of the potato chips falls within the allowable range. The selection hopper opening / closing command section 51b sends an opening / closing command to the opening / closing gate 114a below the weighing hopper 114 according to the selection result.

The all-discharge processing command section 51c and the zero-point adjustment processing command section 51d automatically shift to the all-discharge processing when an operation input for performing these processes is made by an operator or when a predetermined condition described later is satisfied. Weighing hopper 114
An opening / closing command is sent to the lower opening / closing gate 114a. <Outline of operation of device> When potato chips are supplied to the weighing device 110 from the supply conveyor device 101 in the preceding process, the potato chips are radially dispersed by vibration from the dispersion feeder 111 and are pooled through the radiation trough 112. It is sent to the hopper 113. Then, after being temporarily pooled, the potato chips are put into the weighing hopper 114,
The weight is measured by the load cell 114b of each weighing hopper 114. Then, several weighing hoppers 114 selected by a combination operation based on the weighing results
Are dropped into the collecting / discharging chute 115, the potato chips are discharged from the bag making and packaging apparatus 120.
Into the tube 122.

On the other hand, in the bag making and packaging apparatus 120, a cylindrical film Fmc is formed around and below the tube 122 by the former 121 and the tube 122, and is vertically sealed by the vertical sealing mechanism 123 (see FIG. 3). When the potato chips fall on the tubular film Fm through the tube 122, the horizontal sealing mechanism 124 performs horizontal sealing so as to sew the space therebetween, and the center of the horizontal sealing portion is built in the horizontal sealing mechanism 124. It is cut by a cutter. Thus, bags B filled with potato chips are generated one after another. These bags B
It is placed on the conveyor 130 by the inclined guide plate 129, and is conveyed to the weight checker 140 in the subsequent process (see FIG. 1).

<Details of Control of Apparatus> Next, some processes of the apparatus 1 will be described with reference to a display screen displayed on the operation display 60. FIG. 11 shows a normal screen of the operation display 60. Items necessary for daily work are centrally arranged on this screen. Here, a help key 61, an operation environment setting key 62, a drive unit power key 63, an operation start key 64, an all ejection key 65, a zero point adjustment key 66, and the like are arranged.

(Main Flow) FIG. 7 shows a main control flow. In the apparatus 1, first, settings relating to an operation environment such as a target measurement value, upper and lower limit values, and the number of discharges are performed in accordance with a product (here, potato chips) or a bag to be handled (step S1). At this time, the user touches the operation environment setting key 62 on the screen shown in FIG. 11 to call a setting screen (not shown) to perform setting.

When the setting in step S1 is completed, if the operation start key 64 is pressed and the normal operation is performed, an operation process is performed in step S6 (step S2), and whether the all discharge key 65 is pressed is described later. Combination failure value E
If the value exceeds the predetermined value Emax, the entire discharge process is performed in step S7 (step S3), and if the zero point adjustment key 66 is pressed, the zero point adjustment process is performed in step S8 (step S8). If another switch (key) is pressed, another process is performed in step S9 (step S5).

(Normal Operation Processing Flow) FIG. 8 shows a normal operation processing flow. When there is a timing signal from the bag making and packaging control unit 52, the combination calculation unit 51a of the combination weighing control unit 51 fetches the data of the weighing result from the load cell 114b and performs the combination calculation (steps S10 and S1).
1). Then, a predetermined number (for example, three) of the weighing hoppers 1
If there is a combination in which the total weight of the potato chips in 14 is within the allowable range, it is determined that the combination is established and the process proceeds to step S13 (step S12). Step S1
At 3, the unsatisfied integrated value E described later is returned to 0,
The three weighing hoppers 114 selected during the combination calculation are opened and closed. Specifically, an opening / closing command is sent from the selected hopper opening / closing command section 51b to the opening / closing gate 114a, and the opening / closing gate 114a of the selected weighing hopper 114 is opened, so that the potato chips in the weighing hopper 114 are collected and discharged. It falls through the tube 122 to the cylindrical film Fmc. Then, in the bag making and packaging apparatus 120, the tubular film Fmc in a state of covering these potato chips is heat-sealed by the horizontal sealing mechanism 124 (Step S14).

In step S15, the pool hopper 113 on the weighing hopper 114 from which the potato chips have been discharged
Is opened and closed, and new potato chips enter the weighing hopper 114. In step S16, the radiation trough 112 operates to supply new potato chips to the pool hopper 113. If the combination is not established in step S12, that is, if the total weight of the potato chips does not fall within the allowable range in any combination, the process proceeds to step S17. In step S17, the combination unsuccessful integration value E indicating the number of times the combination is continuously unsuccessful is set to 1
Is added, and a weighing hopper requiring additional supply is determined from the weighing result, and the process proceeds to step S15 to open and close the corresponding pool hopper 113. As a result, if the combination is established next time, the unsatisfied integration value E is returned to 0 in step S13. However, even if the supply operation by the dispersion feeder 111, the radiation trough 112, and the pool hopper 113 is repeated, sufficient potatoes are not supplied to the weighing hopper 114. When the chips are not supplied, the combination non-satisfied integrated value E increases steadily. Then, when the combination non-satisfied integrated value E exceeds a predetermined value Emax, it is determined that the supply of potato chips to the weighing device 110 has been stopped and it is no longer possible to continue bagging of potato chips having a weight within an allowable range. The process automatically shifts from the step S3 to the full discharge process in the step S7.

(All Ejection Processing Flow) When the all ejection key 65 is pressed by the operator and when the combination failure unsatisfied integrated value E exceeds the predetermined value Emax, the process shifts from step S3 to step S7, and FIG. Is performed. In this full discharge process, the three weighing hoppers 114 are forcibly opened in order, and all the weighing hoppers 114 are opened.
Discharge the potato chips inside and pack them in a bag.

When the entire discharge process starts, first, the dispersion feeder 1
11 and the radiation trough 112 stop (step S2).
0). Then, the weighing operation by the weighing device 110 and the bag making and packaging operation by the bag making and packaging device 120 are stopped (Step S21). Next, a tubular film for packing in the bag making and packaging apparatus 120 is prepared so that the potato chips to be forcibly discharged are easily discarded (step S2).
2). This tubular film is made to stand by with its lower end horizontally sealed and only its upper part open.

Next, three weighing hoppers 114 are selected.
Potato chips are discharged from the selected weighing hopper 114 (step S23). Then, the processing of step S23 is repeated until all the weighing hoppers 114 are empty (step S24). When all the weighing hoppers 114 are empty, data on the total weight of the discharged potato chips is sent from the combination weighing control unit 51 to the bag making and packaging control unit 52 via the main control unit 53 (step S2).
5). Here, the main control unit 53 determines the bag length required to pack these potato chips for disposal from the total weight of the discharged potato chips (step S26), and transmits the bag length to the bag making and packaging control unit 52.

Then, the bag making and packaging apparatus 120 horizontally seals the tubular film so as to have the bag length, and the potato chips that have been forcibly discharged are packed in a bag (step S27).
While the entire discharge process is being performed, the screen shown in FIG. 12 is displayed on the operation display 60, so that the operator can grasp the progress of the process. Also,
The operator can stop the process by pressing the stop key 67, and can continue the process by pressing the start key 68.

(Zero Adjustment Process Flow) When the zero adjustment key 66 is pressed by the operator, the process shifts from step S4 to step S8, and the zero adjustment process shown in FIG. 10 is performed. In this zero point adjustment processing, the potato chips in the weighing hopper 114 selected by the operator are forcibly discharged, and the weight at that time is stored and updated as the zero point in a state where the weighing hopper 114 is empty.

When the zero point adjustment process is started, first, the weighing device 11
0 and the bag making and packaging operation by the bag making and packaging apparatus 120 are stopped (step S30). Next, a screen (not shown) for allowing the operator to select which weighing hopper 114 should perform zero adjustment is displayed on the operation display 60 (step S31). On the other hand, in the bag making and packaging apparatus 120, a tubular film for bag filling is prepared so that potato chips to be forcibly discharged are easily discarded (step S32). This tubular film
The lower end is sealed horizontally, and only the upper part is opened, and the apparatus is put on standby.

When one or a plurality of weighing hoppers 114 are selected by the operator in step S31, potato chips are discharged from the selected weighing hoppers 114 (step S33). Then, the weight of the empty weighing hopper 114 at that time is stored as a zero point (step S34). Data on the total weight of the discharged potato chips is sent from the combination weighing control unit 51 to the bag making and packaging control unit 52 via the main control unit 53 (step S35). Here, the main control unit 53 determines the bag length necessary for packing the potato chips for disposal based on the total weight of the discharged potato chips (step S36), and transmits this to the bag making and packaging control unit 52.

Then, the bag making and packaging apparatus 120 horizontally seals the cylindrical film so as to have the bag length, and the potato chips forcibly discharged are packed in the bag (step S37).
While the zero point adjustment process is being performed, the screen shown in FIG.
The operator can grasp the progress of the processing. Further, the operator can stop the processing by pressing the stop key 67, and can continue the processing by pressing the start key 68.

<Characteristics of Apparatus> (1) In the present apparatus 1, the bag making / packing apparatus 120 uses the weight data of the potato chips to be forcibly discharged in the full discharge processing and the zero point adjustment processing. I have decided the length. For this reason, the discharged potato chips can be packed in a bag suitable for the amount. As described above, the present apparatus 1 eliminates the conventional operation of determining the bag length while observing the amount discharged by the operator.
A series of operations from the discharging of potato chips to the bag filling in the entire discharging process and the zero point adjusting process are efficiently performed without waste.

The bag length can be determined by selecting a normal bag size or a bag size twice as large as the normal bag size, or by determining the length very finely in proportion to the discharge amount. Alternatively, a selection may be made from several types of bag lengths. Also, the bag length is determined so that the bag for disposal made at the time of the entire discharge process or the zero-point adjustment process has a different size from the normal bag so as to be easily distinguished from the bag manufactured in the normal operation. It may be controlled. In this case, when eliminating the bags formed during the zero point adjustment processing or the total discharge processing, the bags can be distinguished from the bags manufactured in the normal operation without checking the weight.

(2) In the present apparatus 1, the control of the weighing device 110 and the control of the bag making and packaging device 120 are integrated. Therefore, by operating the operation display 60 and the operation switch 70, the operator can operate the control of each of the weighing device 110 and the bag making and packaging device 120, and also perform the entire discharge process across both the devices 110 and 120. And zero point adjustment processing can be easily performed.

(3) In the present apparatus 1, the pool hopper 113
If the combination is not established even after the additional supply of potato chips to the weighing hopper 114 is repeated, control is performed so as to automatically shift to the full discharge process (step S).
12, S17, S3, etc.). For this reason, the process automatically shifts to the full discharge process under the leveled condition, and the weighing device 110 can be used even when there is no operator near the device 1.
However, the problem that the wasteful idle movement continues and the entire discharge process is not performed forever is solved.

[Other Embodiments] (A) In the above embodiment, control is performed such that the bag length is determined and the bag making process is performed after discharging the potato chips in all the weighing hoppers 114 in the entire discharging process. However, while the potato chips are being discharged in order from the weighing hopper 114, the weight data is monitored at any time,
It is also possible to control so that potato chips forcibly discharged using a plurality of bags of a predetermined length are packed.

(B) In the above embodiment, the combination weighing control unit 51 of the weighing device 110 and the bag making and packaging control unit 52 of the bag making and packaging device 120 are integrated.
Each of the control units 10 and 120 is provided with a control unit separately.
The weight data of the potato chips may be exchanged between the two control units in the entire discharging process and the zero point adjusting process. That is, even if the weighing device 110 and the bag making and packaging device 120 each have an operation display and a control unit as in the related art, the weighing device 110
If the control unit of the bag making and packaging apparatus 120 can use the weight data possessed by the device, a series of operations from discharging of potato chips to bag filling in the entire discharging process and the zero point adjusting process as in the above embodiment can be efficiently performed without waste. Can be done

(C) In the above embodiment, the combination unsatisfied integrated value E is provided, and when the combined unsatisfied integrated value E exceeds a certain predetermined value Emax, the automatic shift to the full discharge processing is performed. Can be controlled so that the process automatically shifts to the entire discharge process using time as a parameter.

(D) The device 1 of the above embodiment is a device for weighing potato chips to a predetermined weight and packing it in a bag. The present invention is applied to a device for measuring and discharging and packing a product to a predetermined weight. However, the present invention is not limited thereto, and the present invention can be applied to an apparatus that discharges a predetermined number of products based on the weight data of the products and packs the bags.

(E) In the apparatus 1 of the above embodiment, the bag length is determined based on the weight data of the potato chips to be forcibly discharged in the entire discharging process and the zero point adjusting process. It is also possible to transmit the volume data of the product to be discharged calculated based on the apparent specific gravity and weight data of the chips) from the combination weighing control unit 51 to the bag making and packaging control unit 52, thereby determining the bag length.

[0054]

According to the present invention, when the combination is not established even if the supply of the goods to the weighing section (weighing hopper) is repeated, the control is automatically performed so as to shift to the full discharge processing. This eliminates the need for the operator to manually switch to the full discharge process, which makes it possible to shift to the full discharge process more appropriately, and even when there is no operator near the device, the combination weighing device continues to uselessly The problem that the discharging process is not performed forever is solved.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a weighing and bag-making and packaging system including a conventional weighing device and a bag-making and packaging device.

FIG. 2 is a conceptual diagram of a weighing device.

FIG. 3 is a schematic diagram of a configuration of a bag making and packaging apparatus.

FIG. 4 is a schematic perspective view of a weighing bag-making and packaging apparatus according to an embodiment of the present invention.

FIG. 5 is a control block diagram of the measuring bag making and packaging apparatus.

FIG. 6 is a block diagram of a combination weighing control unit.

FIG. 7 is a main control flow.

FIG. 8 is an operation processing flow.

FIG. 9 is a flowchart showing the entire discharge process.

FIG. 10 is a flowchart of zero point adjustment processing.

FIG. 11 shows one screen of an operation display.

FIG. 12 is a screen of an operation display during a full discharge process.

FIG. 13 shows one screen of an operation display during a zero adjustment process.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 measurement bag making and packaging apparatus (weighing and bag making and packaging system) 50 control apparatus 51 combination weighing control section (control section) 51a combination calculation section (computation section) 110 weighing apparatus (combination weighing apparatus) 111 dispersion feeder (supply section) 112 Radiation trough (supply section) 113 Pool hopper (supply section) 114 Measuring hopper (measuring section) 120 Bag making and packaging apparatus

Claims (5)

[Claims] 1. A plurality of weighing units for weighing goods, a supply unit for supplying goods to the plurality of weighing units, and a combination calculation based on the weight of the goods supplied to the plurality of weighing units, An arithmetic unit for selecting at least one of the weighing units such that the total weight or the total quantity of the products is within a permissible range; and when the combination operation of the arithmetic units is established, the arithmetic unit selects the weighing unit. When the product is discharged from the weighing unit and the supply operation from the supply unit to the weighing unit is repeated a predetermined number of times or for a predetermined time, the combination calculation of the calculation unit is not established and the measurement unit cannot be selected. And a control unit for performing a full discharge process for forcibly discharging products in all of the plurality of weighing units. 2. The method according to claim 1, wherein the operation of supplying the commodity from the supply unit to the weighing unit is repeated a predetermined number of times or for a predetermined period of time. 2. The combination weighing device according to claim 1, wherein when the total weight or the total quantity of the commodities becomes smaller than the weight or the quantity within the allowable range, the total discharging process is performed. 3. The method according to claim 1, wherein the control unit is configured to perform a supply operation from the supply unit to the weighing unit a predetermined number of times or for a predetermined period of time. The combination weighing device according to claim 1, wherein the total discharging process is performed, and the weight data of the compulsorily discharged commodities or the data indicating the quantity of the commodities based on the weight data is transmitted to a commodities discharging destination. 4. A combination weighing device according to claim 3, wherein the bag is produced from a film, and a product discharged from the combination weighing device is packed in the bag and packed. A control device that determines the size of a bag to be manufactured by the bag making and packaging apparatus, using a combination weighing device using data indicating the weight data of the product to be forcibly discharged in the entire discharge process or the amount of the product based on the weight data; And a weighing and bag-making and packaging system. 5. The control device according to claim 1, wherein before the combination weighing device performs the full discharging process, the normal operation of the bag making and packaging device is stopped, and the bag receiving the compulsory discharged products by the full discharging process is controlled. The weighing and bag-making and packaging system according to claim 4, wherein the bag-making and packaging device is prepared.