JPH05147601A - Metering/packaging system - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a weighing and packaging system that can easily change the setting of various operating quantities associated with brand changes. [Configuration] Various operating quantities that need to be changed according to the type of granular material Adjusting means (25, 28, 31, 33, 50, 54, 40a, 1
1), a brand input means (61) for designating a brand of the granular material, and an instruction corresponding to the operation amount suitable for the type of the granular material of the brand in response to the input of the brand input means. Control processing means (6
3) and are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weighing and packaging system for automatically packaging a predetermined amount of granular material such as polished rice.

[0002]

2. Description of the Related Art Conventionally, weighing is performed by automatically measuring granular materials such as rice milled by an automatic weighing device and supplying each in a predetermined amount, and then automatically packing the packaging bag supplied from the automatic bag feeding device by the automatic packaging device. Packaging systems are known.

In this type of weighing and packaging system, when the brand (type) of the object to be filled, that is, the granular material, is changed, the property of the object to be filled changes (apparent specific gravity, fluidity, etc.) or the size of the packaging bag. It is necessary to change various operation amounts in the automatic weighing device, the automatic packaging device, and the automatic bag feeding device according to the change of the above.

Conventionally, this setting change has been performed by a specialized operator for each operation amount by a key input means of a control device for controlling each device.

[0005]

Therefore, it takes a lot of time and specialized skill to change the setting of each of these manipulated variables in accordance with the brand change. In particular, this is a time-consuming task for those who are unfamiliar with the operation of the control device, and it is a heavy burden when brand changes are frequently made. The present invention has been made in view of such conventional problems, and is characterized in that it provides a weighing and packaging system that can easily change the settings of various operation amounts associated with brand changes.

[0006]

The gist of the present invention for attaining the above object is to: 1 Measure the granular material by an automatic measuring device (10) and supply it in a predetermined amount, and the automatic packaging device In the weighing and packaging system for filling the packaging bag (1) supplied from the automatic bag feeding device (20) by (40) and automatically packaging, the automatic weighing device, which needs to be changed according to the type of granular material, A plurality of adjusting means for respectively adjusting various operation amounts in the bag feeding device and the automatic packaging device according to a command, and a basic data for calculating the operation amounts suitable for various brands of granular materials.
Storage means (64) for storing data for each brand, brand input means (61) for designating the brand of the granular material, and the basic corresponding to the designated brand upon receiving the input of this brand input means. Data is read from the storage means and the basic data is read.
Computing means (65) for computing the manipulated variable from the controller, and output means (6) for outputting a command corresponding to the manipulated variable computed by the computing means to the plurality of adjusting means, respectively.
6) A weighing and packaging system comprising:

2 The automatic bag feeder comprises a stock pushing mechanism (25) for pushing the stacked packing bags into the transfer section by a stroke according to the command, and a side end of the packing bag at the transfer section. A positioning plate (27) that abuts and positions the position in the width direction, and a packaging bag sent from the transfer unit to place the packaging bag and convey the packaging bag to the filling unit of the automatic packaging device. In the sliding plate (29) for delivering the sheet, a sliding plate width regulating plate (30) for abutting the side end of the packaging bag to position the position in the width direction, and a sliding plate (29) for abutting the lower end of the packaging bag on the sliding plate for adjusting the height Positioning slide plate height control plate (32)
The stock pushing mechanism (25), and a positioning adjusting mechanism (28) for moving the positioning plate in the width direction of the packaging bag in the transfer section.
A sliding plate width adjusting mechanism (31) for moving the sliding plate width regulating plate in the width direction of the packaging bag on the sliding plate, and a sliding plate height adjusting mechanism (33) for moving the sliding plate height regulating plate in the longitudinal direction of the packaging bag on the sliding plate. Item 2. The weighing and packaging system according to Item 1, further comprising:

3 The automatic packaging device conveys the packaging bag to the filling portion and positions the packaging bag for a prescribed filling time at a position where the packaging material is dropped and a position for receiving the granular material is maintained.
2), a push plate (45) that abuts the side surface of the packaging bag when the granular material is filled and regulates the overhang of this side surface, and the bottom surface of the packaging bag to promote the filling when the granular material is filled. And a filling conveyor (4) for transferring the packaging bag filled with the granular material to discharge it.
6), and as the adjusting means, a push plate height adjusting mechanism (50) for vertically moving the push plate, and a filling conveyor height adjusting mechanism (54) for vertically moving the conveying belt of the filling conveyor. Item 2. The weighing and packaging system according to Item 1, further comprising: a filling operation control unit (40a) for controlling the operations of the inserter drive unit and the filling promotion plate.

4 The automatic weighing device includes a weighing machine that weighs a predetermined amount of granular material to the filling portion of the automatic packaging device in order to supply the commanded predetermined amount, and the adjusting means serves as the weighing device. Item 2. The weighing and packaging system according to Item 1, further comprising a weighing operation control means (11) for controlling the operation of the machine.

[0010]

In the weighing and packaging system of the present invention, when the brand is designated by the brand input means (61), the computing means (6)
5) receives the input from this brand input means, judges the designated brand, and stores the basic data corresponding to this brand in the memory means (6).
4) is read out, and the manipulated variable is calculated from this basic data. Then, the output means (66) outputs a command corresponding to the operation amount calculated by the calculation means, that is, a command corresponding to each operation amount suitable for the property of the granular material of the designated brand, to each adjusting means (25, 28, 31, 33, 50, 54, 4
0a, 11) respectively. Then, each adjusting means adjusts various operation amounts in the automatic weighing device (10), the automatic bag feeding device (20), and the automatic packaging device (40) in accordance with the command.

The adjusting means includes a stock pushing mechanism (25) in the automatic bag feeder, a positioning adjusting mechanism (28),
In the case of the slide plate width adjusting mechanism (31) and the slide plate height adjusting mechanism (33), the stock pushing mechanism changes the stroke to a suitable value according to the width dimension of the packaging bag, and the positioning adjusting mechanism The positioning plate (27) in the transfer section is moved to a suitable position according to the width dimension of the packaging bag, and the sliding plate width adjusting mechanism causes the sliding plate width regulating plate (30) of the sliding plate (29) to move according to the width dimension of the packaging bag. After moving to a suitable position, the slide plate height adjusting mechanism moves the slide plate height regulating plate (32) to a suitable height according to the length dimension of the packaging bag.

When the adjusting means is the push plate height adjusting mechanism (50), the filling conveyor height adjusting mechanism (54) and the filling operation control means (40a), the push plate height adjusting mechanism is automatically operated. The pressing plate (45) in the packaging device is moved to an appropriate height according to the length of the packaging bag, and the filling conveyor height adjusting mechanism causes the conveyor belt (55) of the filling conveyor.
Is moved to an appropriate height according to the length of the packaging bag, and the filling operation control means controls the inserter drive unit (42) to position the packaging bag (1) at the position where the granular material is dropped. The standing time is made to correspond to the filling time, and the bottom surface of the packaging bag is tapped by the filling promotion plate (43) a number of times according to the property of the granular material.

Further, when the adjusting means is the measuring operation control means, the measuring operation control means controls the measuring device,
The amount of the granular material supplied to the filling section of the automatic packaging device is set to the commanded predetermined amount.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 and 2, the weighing and packaging system according to the present embodiment is an automatic weighing device 10 (only shown in FIG. 1 and shown in FIG. 2 that automatically weighs a predetermined amount of granular material so as to supply it in predetermined amounts. , And an automatic bag feeder 20 for automatically supplying the packaging bag 1, and a predetermined amount of granular material supplied by the automatic weighing device 10 is filled in the packaging bag 1 supplied from the automatic bag feeder 20 for automatic packaging. The automatic packaging device 40 and the central control device 60 (only shown in FIG. 1 and not shown in FIG. 2) for controlling these devices are provided.

The automatic weighing device 10 weighs a predetermined amount of the specified amount so as to supply the specified amount to the filling section 41 of the automatic packaging device 40 described later (not shown).
And weighing operation control means 11 for controlling the operation of the weighing machine.
(Adjusting means).

The automatic bag feeder 20 comprises an empty bag stock unit 2
1, a horizontal transfer unit 22, a vertical movement unit 23, and a slide plate unit 24. The empty bag stock unit 21 has a place where a predetermined number of packaging bags 1 are put in a cassette and stacked in a stack,
A stock pushing mechanism 25 (adjusting means) for pushing the packing bags 1 together by the stroke instructed to the lateral transfer section 22 is provided. This stock pushing mechanism 25 is
It is composed of a screw, a servo motor for driving the screw, and an encoder for detecting the rotational position of the motor, and is controlled by the central control unit 60.

The lateral transfer section 22 has a stock pushing mechanism 25.
The packaging bag 1 has a lifting mechanism that appropriately raises the packaging bag 1 and a suction transfer mechanism 26 that sucks and transfers the packaging bag 1 from the uppermost one. Then, it is transferred to the vertical moving section 23.

The vertical moving section 23 vertically transfers the packaging bags 1 sent from the lateral transporting section 22 one by one to the sliding plate section 24, and abuts the side end of the packaging bag 1 in the width direction ( Lateral direction)
It has a positioning plate 27 for positioning the position, and a positioning adjusting mechanism 28 (adjusting means) for moving the positioning plate 27 in the width direction of the packaging bag 1. This positioning adjustment mechanism 2
Reference numeral 8 also comprises a ball screw, a servo motor for driving the ball screw, and an encoder for detecting the rotational position of the motor, and is controlled by the central controller 60.

The sliding plate portion 24 is for delivering the packaging bag 1 transferred from the vertical moving portion 23 to the inserter driving portion 42 of the automatic packaging device 40, which will be described later. 2 for smoothly receiving and placing the packed packaging bag 1
9, and a sliding plate width regulating plate 30 that abuts the side end of the packaging bag 1 to position the position in the width direction on the sliding plate 29.
A sliding plate width adjusting mechanism 31 (adjusting means) for moving the sliding plate width regulating plate 30 in the sliding plate 29 in the width direction of the packaging bag 1, and a sliding plate for abutting the lower end of the packaging bag 1 on the sliding plate 29 to adjust this height for positioning. It has a height regulating plate 32 and a sliding plate height adjusting mechanism 33 (adjusting means) for moving the sliding plate height regulating plate 32 in the sliding plate 29 in the longitudinal direction of the packaging bag 1.

Here, the slide plate width adjusting mechanism 31 and the slide plate height adjusting mechanism 33 are also provided with a ball screw and a servo wheel driving the ball screw.
It is composed of a motor and an encoder for detecting the rotational position of this motor, and is controlled by the central controller 60.

The automatic wrapping device 40 is provided with a wrapping bag 1 and a filling section 4
1 and the inserter drive unit 42 for positioning the packaging bag for a prescribed filling time at the position where the granular substance is dropped from the dropping port 42, and the granular substance is filled below the filling unit 41. A filling promotion mechanism 4 having a filling promotion plate 43 that taps the bottom surface of the packaging bag a prescribed number of times to promote the filling when being carried out.
4, a pressing plate 45 that abuts on the side surface of the packaging bag 1 when the granular material is filled and restricts the overhang of this side surface, and the packaging bag 1 that is connected to the filling promotion mechanism 44 and is filled with the granular material. −
And a filling conveyor 46 that is moved to discharge the packaging bag 1 (which seals the package 1 and is not shown), and holds the upper edge of the packaging bag 1 that is arranged above the filling conveyor 46. Introducer 47 for introducing into the seal machine
And a filling operation control means 40a (adjusting means) for controlling the inserter drive section 42 and the filling promotion mechanism 44.

The inserter drive unit 42 transfers or positions the two packaging bags 1 in a suspended state via four suspenders 48. The mechanism comprises a rack and a pinion and a service for driving the mechanism. It is composed of a bomotor and an encoder for detecting the rotational position of this motor, and is controlled by the filling operation control means 40a.

The push plates 45 are provided on the one surface of each packaging bag 1, four in total, and are pressed against the side surface of the packaging bag 1 by the linear motion mechanism 49. A height adjusting mechanism 50 (adjusting means, which is shown only in FIG. 1 and omitted in FIG. 2) is configured to be moved up and down. This push plate height adjustment mechanism 50
Also, it is composed of a ball screw, a servo motor for driving the ball screw, and an encoder for detecting the rotational position of the motor, and is controlled by the central controller 60.

The filling promoting mechanism 44 comprises the filling operation control means 4
The filling promotion plate 43, which is controlled to 0a and is arranged on the upper surface thereof, is moved up and down toward the bottom surface of the packaging bag 1 a specified number of times. As shown in FIG. 7, the filling conveyer 46 has a filling conveyer height adjusting mechanism 54 (adjusting means) including a motor 51, a ball screw 52, and a link 53, and the conveying belt 55 and a motor for driving the same. The entire transport unit including the switch 56 is moved up and down to adjust the transport surface height.

The introduction machine 47 comprises a revolving belt 58 and a servo motor 59 for driving the belt 58, and is also controlled by the central controller 60.

The central controller 60 is a brand setting sheet key 61 (brand input means) for designating the brand of the granular material.
3, a display means 62 and a control processing means 63 for controlling the entire weighing and packaging apparatus according to the flow chart shown in FIG. 3 based on the input of the brand setting sheet 61.

Here, the control processing means 63 is an adjusting means (25, 28, 31, 33,) suitable for various brands of granular materials.
50, 54, 40a, 11) corresponding to the designated brand by receiving the input of the storage means 64 for storing the basic data for calculating the manipulated variable for each brand and the brand setting seat key 61 Calculating means 65 for reading the basic data from the storage means 64 to calculate the manipulated variable, and output means 66 for outputting a command corresponding to the manipulated variable calculated by the computing means 65 to each of the plurality of adjusting means. It is equipped with.

The control processing means 63 is specifically constituted by, for example, a microcomputer, and the storage means 64 is its ROM or RAM, and the arithmetic means 65.
Can be constituted by the CPU, and the output means 66 can be constituted by the interface. Here, as the basic data, as will be described later, there are dimensions of the packaging bag according to the designated brand and the like.

In the above weighing and packaging system,
Weighing operation control means 11, stock pushing mechanism 25, positioning adjusting mechanism 28, slide plate width adjusting mechanism 31, slide plate height adjusting mechanism 33, push plate height adjusting mechanism 50, filling conveyor height adjusting mechanism 54, filling operation controlling means 40a. Is the adjusting means of the present invention. In addition, as shown in FIG.
0 and the automatic wrapping device 40, the suction pulling mechanisms 71 and 72 for sucking the upper edge of the packaging bag 1 and pulling the same.
Is provided with a bag mouth widening part 70,
The packaging bag 1 transferred by means is designed so that its mouth can be opened before reaching the filling section 41.

Next, the operation will be described. First, during normal operation (state in which the specified fixed brand of weighing and packing work is being performed), the control processing means 63 displays the display means 62 as shown in FIG. Weigh and pack this brand. Here, "B205" represents the brand, and "EA" represents the type of packaging bag corresponding to this brand (note that FIG. 4 indicates that the system has stopped operating and is designated at that time). It is when displaying the brand etc.).

When the brand change key of the brand setting seat key 61 is pressed while the system is stopped, the control processing means 6
3 is the system operation mode, which is a brand setting mode (normal operation is not possible and only the operation associated with brand change is possible)
And the brand setting change process shown in FIG. 3 is performed. Hereinafter, this process will be described step by step.

Step S1; When the brand call key is further input, the brand list as shown in FIG. 5 is displayed on the display means 6.
Display on 2. That is, the calculation means 65 is the storage means 64.
The brand stored in (1) is called with the brand number and is displayed on the display unit 62 via the output unit 66. here,
When the keys "brand ↑" and "brand ↓" are pressed in FIG. 6, the calculation means 65 scrolls up or scrolls down the list display on the display means 62.

Here, the operator who changes the brand can easily specify the brand by looking at this list. That is, the number of the brand to be specified found on the display screen (displayed in [] in FIG. 5, for example, if the brand is “F301”, “01”) is set in the brand setting seat key 61. If the input is made by the numerical key, the calculating means 6
5 is the stock corresponding to this stock number (in this case, "F30
1 ”) is designated.

Step S2: When the number corresponding to the designated brand is input, the calculation means 65 reads the basic data of the designated brand from the storage means 64. The basic data includes the dimensions of the packaging bag (packaging material) according to the designated brand, the number of times of filling promotion, the filling time, and the like.

Steps S3, 4; the calculating means 65 sets data based on this basic data (calculation formula given in advance).
The operation amount of each adjusting means 25, 28, 31, 50, 54 is calculated by. That is, the vertical movement amount of the stroke of the stock pushing mechanism 25, the positioning plate 27, the sliding plate width regulating plate 30, the sliding plate height regulating plate 32, the pushing plate 45, and the conveyor belt 55 is calculated.

Step S5: The calculating means 65 sends a command corresponding to the calculated operation amount to each adjusting means 25, 28, 31, 50, 54 via the output means 66 to operate them.

Steps S6, 7; On the other hand, steps S2 to
5, the calculation means reads the data (basic data) of the number of times of filling promotion or filling time from the storage means 64, and this is used as it is as the manipulated variable for the filling operation control means 4
The data is transferred to 0a and the setting of the data of the number of times of filling promotion or the filling time in the filling operation control means 40a is changed (operation amount is changed).

Step S8: When the processing up to step S7 is completed, the brand setting change processing is completed and the operation mode is returned to the normal operation mode.

Although the set value changing process in the automatic weighing device 10 is not shown in FIG. 3, the control processing means 6
3 (calculating means 65) performs the processing up to step S7, and also sends the data of the filling amount corresponding to the designated brand to the metering operation control means 11 to the metering operation control means 11 to change the set value. ..

As described above, with the above-mentioned weighing and packaging apparatus,
The control processing means 63 only needs to input the number of the designated brand.
By the processing of (calculating means 65), various set values (manipulation amounts) are automatically changed according to the brand change, so that the operator's work is extremely easy and requires no special skill.

[0041]

According to the weighing and packaging system of the present invention, since various setting change operations associated with brand changes are automatically performed, the operator's work is extremely easy and does not require a professional skill. Become.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a main part of a weighing and packaging system that is an embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a weighing and packaging system which is an embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the weighing and packaging system which is an embodiment of the present invention.

FIG. 4 is a diagram showing a display example of a display means in the weighing and packaging system which is an embodiment of the present invention.

FIG. 5 is a diagram showing a display example of display means in the weighing and packaging system according to the embodiment of the present invention.

FIG. 6 is a diagram showing a brand setting means in the weighing and packaging system which is an embodiment of the present invention.

FIG. 7 is a side view showing the configuration of a filling conveyor height adjusting mechanism in the weighing and packaging system which is an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Packaging bag 10 ... Automatic measuring device 11 ... Measuring operation control means 20 ... Automatic supply device 22 ... Transfer part (horizontal transfer part) 25 ... Stock pushing mechanism 27 ... Positioning plate 29 ... Sliding plate 30 ... Sliding plate width regulating plate 31 ... Sliding plate Width adjusting mechanism 32 ... Sliding plate height regulating plate 33 ... Sliding plate height adjusting mechanism 40 ... Automatic wrapping device 40a ... Filling operation control means 41 ... Filling unit 42 ... Insert driving unit 43 ... Filling promoting plate 45 ... Pushing plate 46 ... Filling Conveyor 50 ... Pushing plate height adjusting mechanism 54 ... Filling conveyor height adjusting mechanism 61 ... Brand input means 64 ... Storage means 65 ... Computing means 66 ... Output means

Claims (4)

[Claims] 1. A weighing and packaging system in which a granular material is weighed by an automatic weighing device and supplied in a predetermined amount, and this is automatically packed by filling the packaging bag supplied from the automatic bag feeding device by the automatic packaging device. Suitable for various brands of granules, and a plurality of adjusting means for adjusting various operation amounts in the automatic weighing device, automatic bag feeder, and automatic packaging device, which need to be changed according to the type of product, according to a command. A storage means for storing the basic data for calculating the operation amount for each brand, a brand input means for designating the brand of the granular material, and a designated brand which receives the input from the brand input means. The basic data corresponding to the above-mentioned basic data is read out from the storage means, and the operation amount is calculated from the basic data, and a plurality of commands corresponding to the operation amount calculated by the operation device are given. Weighing and packaging system characterized by comprising an output means for outputting the respective adjustment means. 2. The automatic bag feeder comprises a stock pushing mechanism for pushing the stacked packing bags into the transfer section only by a stroke according to a command, and a side end of the packing bag in the transfer section. A positioning plate that positions the lever in the width direction, and a slide plate that places the packaging bag sent from the transfer unit and conveys the packaging bag to the filling unit of the automatic packaging device and transfers the packaging bag to the inserter drive unit. In, a sliding plate width regulating plate that abuts the side end of the packaging bag to position the position in the width direction, and a sliding plate height regulating plate that abuts the lower end of the packaging bag in the sliding plate and positions this height, As the adjusting means, the stock pushing mechanism, a positioning adjusting mechanism that moves the positioning plate in the width direction of the packaging bag in the transfer unit, and a sliding plate width that moves the sliding plate width regulating plate in the width direction of the packaging bag in the sliding plate. An adjustment mechanism, The weighing and packaging system according to claim 1, further comprising a slide plate height adjusting mechanism for moving the slide plate height regulating plate in a longitudinal direction of the packaging bag on the slide plate. 3. The automatic packaging device comprises an inserter driving unit for transporting a packaging bag to a filling section and positioning the packaging bag for a designated filling time at a position for receiving the dropping of the granular material, and A pressing plate that abuts the side surface of the packaging bag when it is filled and regulates the protrusion of this side surface, and a filling promotion plate that taps the bottom surface of the packaging bag a specified number of times to promote filling when the granular material is filled. And a filling conveyer for discharging the packaging bag filled with the granular material so as to be discharged, and as the adjusting means, a pushing plate height adjusting mechanism for moving the pushing plate up and down, and a conveying belt of the filling conveyor are moved up and down. 2. The weighing and packaging system according to claim 1, further comprising: a filling conveyor height adjusting mechanism that is moved, and a filling operation control unit that controls operations of the inserter driving unit and the filling promotion plate. 4. The automatic weighing device comprises a weighing machine for weighing a predetermined amount of the granular material to a filling portion of the automatic packaging device so as to supply the commanded predetermined amount to the filling portion. 2. A weighing operation control means for controlling the operation of the weighing machine is provided.
The described weighing and packaging system.