JP2756239B2 - Automatic packaging weighing machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combination of an automatic wrapping machine for wrapping goods and an automatic weighing and valuing machine for weighing and valuating the packed goods. The present invention relates to an automatic packaging weighing machine. 2. Description of the Related Art In recent years, with the development of the distribution industry, the demand for a system for packing and weighing articles to measure and price them has increased, and an automatic packaging machine and an automatic weighing and pricing machine have been integrated. There is an automatic packaging weighing machine. However, since the packaged items need to be weighed and priced in terms of function, they are only structurally connected in terms of arrangement, and do not hinder the flow of items on the conveyor. If there is no, it is good. That is, the automatic wrapping machine and the automatic weighing and weighing machine only operate separately. So, both
Devices have been developed that combine
High-volume conveyors and various conveyors that convey products are connected
It is provided. [0004] A conventional automatic packaging machine and a conventional automatic packaging machine
Automatic packaging weighing machine integrated with dynamic weighing machine
And various conveyors installed inside it at the start of operation
If there is any remaining goods or debris in the
Or the smooth conveyance of goods is hindered. An automatic wrapping machine for wrapping a conveyed product with a wrapping film, a weighing conveyor for outputting the weight of the product, and discharging the product on the weighing conveyor.
Issued that product data call from the stored PLU data for each discharge means and PLU Oyo based on the output of the beauty weighing unit calculates the price of the product and the label issuing unit for issuing a label in the label issuing unit Affixed label to product
In an automatic weighing and weighing machine integrated with an automatic weighing and weighing machine having a label affixing section having an affixing conveyor ,
Operate immediately after the power switch is turned on or when the machine is stopped.
When the discharge means is switched to the
Discharge goods on the weighing conveyor and paste
An initial discharge operation means for rotating the attached conveyor forward for a predetermined time is provided. An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 schematically shows the external appearance of an automatic packaging weighing and value adding machine.
And the automatic weighing and value adding machine 2. This allows
First, the articles set on the packaging conveyor 3 by the automatic packaging machine 1 are conveyed in the packaging machine, and the articles cut to a predetermined length on the way are fed with a packaging film on the articles,
The product is lifted against the film to form a packaging pack. Then, the process proceeds to the automatic weighing and value adding machine 2 according to the packaging conveyor 3 (more specifically, it is conveyed by the conveyor 3a or the heat conveyor 3b). First, a weighing conveyor 4 is arranged in front of the packaging conveyor 3, and the articles transferred onto the weighing conveyor 4 are measured.
When the weighing is completed, the articles are pushed to the side by the weighing arm 5 and transferred onto the transport conveyor 6. The transport conveyer 6 feeds articles along a transport guide 7 onto a sticking conveyor 8 which is a part of a label sticking section. A label issued by a label printer 9 serving as a label issuing unit is attached to the article sent on the attaching conveyor 8 by the operation of the attaching arm 10. Then, the article is sent out by the discharge arm 11 and is discharged to the near side by the discharge rollers 12 and 13. In FIG. 2, a thick arrow indicates a conveying direction of the conveyor,
The thin arrows indicate the flow of goods. Reference numeral 14 denotes an operation unit in the automatic packaging machine 1, and reference numeral 15 denotes an operation unit in the automatic weighing and value adding machine 2. The configuration of the operation unit 15 is shown in FIG. That is, the display section 16 of the weight, unit price, price, and product number, ten keys 17 of 0 to 1,
In addition to the erase key 18, the execution key 19, and various keys 20 such as a product number, key switches 21 and 22, an operation switch 23 for operation / stop, a business changeover switch 24 for switching between a mode with a weighing value / a mode with a weighing value / a packaging mode. , Power switch 2
5 are provided. Further, a changeover switch 27 for selecting whether various keys such as a sheet key 26 or the like and a film cut length are set by PLU setting described later (automatically) or by the automatic packaging machine 1 is provided. Reference numeral 28 denotes an LED for displaying an error or the like. Although not shown, the operation unit 14 is provided with a dial or the like as a film cut length input unit for setting a film cut length. [0008] These systems are controlled by a system controller 30 as shown in FIG.
The system controller 30, the automatic wrapping machine 1, and the automatic weighing machine 2 have ROMs 31, 32, 33 and RAMs 34, 3, respectively.
CPUs 37, 38 and 39 to which the CPUs 5 and 36 are connected,
I / O ports 40, 41, 42, photocouplers 43, 4
4 are connected. The I / O port 40 includes an AC motor control circuit 4 for an AC motor for the weighing conveyor 4, the transport conveyor 6, the attaching conveyor 8, the discharge arm 11, and the like.
5. The pulse motor control circuit 46 of the pulse motor for the attaching arm 10 and the switches 47 are connected. Further, a motor control circuit 48 is connected to the I / O port 41. On the other hand, in the automatic weighing device 2, the weighing output from the load cell
0 to the I / O port 42,
The CPU 39 is connected to a printer controller 51 for the label printer 9, a display tube 52, and a display / key controller 54 for the keys 53. In such a configuration, first, a main flow on the system controller 30 side is shown in FIG. After the initial set, memory, and I / O initial reset, it is determined whether the operation switch 23 is ON. If OFF, the "weighing completion" signal is reset. If ON, the discharging operation is performed. This discharge operation is an initial discharge operation when the power switch is switched from ON and stop to operation, and is processed according to the flowchart of FIG. First, under the discharge flag = 1, if the discharge arm 11 is not at the home position, the discharge arm 11 is reversely driven and returned to the home position. If it is in the home position, it is stopped. A photo sensor (PS) for detecting an article is provided at the entrance of the adhering conveyor 8, but unless the photo sensor is turned on, the transport conveyor 6 and the adhering conveyor 8 are rotated forward and the adhering conveyor 8 for the article is provided. Allows upward transfer. On the other hand, when the article is transferred onto the sticking conveyor 8 and the entrance photo sensor is turned on, the transport conveyor 6 and the sticking conveyor 8 are stopped to perform label sticking, and the discharge arm 11 is driven forward to discharge the article. Then, timer 1 processing is performed. Here, the timer 1 process refers to a process of the time required for the discharge arm 11 to complete the discharge of the article from the home position. After the timer 1 processing, the discharge arm 11 stops, returns to the home position by reverse driving, and stops when returning. Then
Forward rotation of the conveyor 6 and the sticking conveyor 8 is performed.
If the entrance sensor of the sticking conveyor 8 is OFF, the normal rotation of the conveyors 6 and 8 continues and stops until 500 ms elapses. On the other hand, if an article is present and the photosensor at the entrance of the sticking conveyor is ON, the article disappears and 500
Wait for elapse of ms and stop both conveyors 6,8. Then, the discharging operation of the discharging arm 11 is performed simultaneously with the above. In any case, if the discharge of the articles on the weighing conveyor 4 has been completed at this time, the process ends. On the other hand, if the discharge of the articles from the weighing conveyor 4 is not completed, the discharge flag is set to 0. If the weighing arm 5 is not at the home position, it is returned to the home position by reverse driving, and if it is at the home position, it stops as it is. Here, the measuring conveyor 4 rotates forward for 100 ms, and the width of the article is adjusted. Thereafter, the conveyor 6 rotates forward and the weighing arm 5 is driven forward to transfer and discharge the articles from the weighing conveyor 4 to the conveyor 6. Here, the timer 2 refers to a process of a time required from the home position of the weighing arm 5 to completion of the discharge of articles. And the measuring arm 5
Returns to the home position, stops, the discharge on the weighing conveyor 4 is completed, and the transporting conveyor 6 and the attaching conveyor 8 rotate forward. The initial discharge operation is performed by the initial discharge operation means for the following reason. That is, meat pieces due to pack leakage, film fragments due to pack mistakes, and the like tend to remain on the conveyor, and if this is on the weighing conveyor 4, an erroneous measurement of the article occurs. This impedes smooth transport. Therefore, in this embodiment, as described above, the power switch 25
Immediately after the machine is loaded or when the machine is switched from the stopped state to the operating state, the discharging operation is always performed to clean the conveyor. After the discharging operation is completed, a mode check is performed. Here, the mode includes three modes of a package weighing mode, a weighing mode, and a packaging mode. Now, if the mode is the package weighing mode, it is checked whether the cut length of the film is set. That is, it is checked whether the PLU set signal is at the H level and the changeover switch 27 is set to the automatic side. On the automatic side, the film cut length has already been set when setting the PLU, and the film cut length is output to the automatic packaging machine 1 by the film cut length output means. Then, the operation mode “4” is output to the automatic packaging machine 1 by the selection means. Here, it is assumed that the operation mode to be sent to the automatic packaging machine 1 is set as shown in the table below.
On the other hand, if the PLU set signal is not at the H level or the changeover switch 27 is not on the "automatic" side, the changeover switch 2
At 7, the packaging machine side LED is turned on, and the operation mode "3" is output to the automatic packaging machine 1 side by the selection means. Further, in the weighing mode, the operation mode “2” is output to the automatic packaging machine 1 because the automatic packaging machine 1 is not involved. In the case of the packaging mode, the changeover switch 27 turns on the packaging machine side LED, and outputs the operation mode “3” to the automatic packaging machine 1 side. Thus, it is determined whether the HP ready is at the H level. That is, it is determined whether the automatic weighing and value adding machine 2 is operable, for example, whether the load cell weigher is ready to receive the article, and if the HP ready is not at the H level, the operation is disabled and the "weighing complete" signal is reset. However, the operation of the automatic packaging machine 1 is also disabled, and each mode process is not performed. [Table 1] On the other hand, if the HP ready is at the H level,
After setting the "weighing complete" signal, each mode process is performed. That is, it is determined whether or not the automatic weighing and weighing machine 2 is operable based on the HP ready signal, and the result is sent to the automatic wrapping machine 1 side. Is controlled. This is because if the automatic wrapping machine 1 is operated when the automatic weighing and value adding machine 2 is inoperable, the articles are accumulated on the transport path, causing a trouble. Thus, according to the embodiment, the operation of the automatic wrapping machine 1 is controlled by the automatic weighing and weighing machine 2 side, and the automatic wrapping machine 1 can operate only when the automatic weighing and weighing machine 2 is operable. However, the above-described trouble does not occur. Here, each mode process is performed according to the flowchart of FIG. That is, an article is conveyed from the automatic packaging machine 1 and weighed (label issuance) is sent out onto the conveyer 6 by the weighing arm 5 → conveyed to the attaching conveyor 8 by the conveyer 6 → label is attached by the attaching arm 10 on the attaching conveyor 8. In a series of cycles of sticking → discharging by the discharge arm 11, the transport path is determined by sticking accuracy (position) and the like, and is sent along the guide 7 provided on the path. In this regard, according to the conventional method, the transport conveyor is arranged so that the article advances obliquely toward the guide direction from a line parallel to the guide, but it is not possible to increase the oblique angle. There is a limit when considering the smooth flow of goods, and goods cannot be brought to a sufficient position. As another method, there is a method in which articles are conveyed as close as possible to a guide by the measuring conveyor when the articles are conveyed on the weighing conveyor while the conveying conveyor is arranged obliquely and weighed. But,
According to this method, the position of the article is considerably deviated from the center position of the weighing conveyor, and accurate weighing cannot be performed due to variations in the accuracy of the weighing scale and difficulty in stabilizing the article. However, in this embodiment, in any mode, when an article is conveyed from the automatic packaging machine 1, the article is stopped at the center position of the weighing conveyor 4 (solid line position in FIG. 2) and weighing is performed. Weighing conveyor 4
After operating for 00 ms, the guide
Side, and then the guide 7
Are discharged onto the conveyor 6 along the line. In FIG. 7, 500 ms indicates a dummy loop. In the weighing mode and the weighing mode, the process of ending label issuance and attaching is performed in parallel by an interrupt process. On the other hand, the main flow in the automatic weighing and value adding machine 2 is shown in FIG. Initial set, memory, I
After / O initial reset and display scanning
It is determined whether or not the error flag is 1, and if an error occurs, error processing is performed. Thereafter, reading of data of the load cell scale and reading of the mode changeover switch are performed, and key processing is performed. For this key processing,
FIG. 9 is a flowchart focusing on setting the cut length of the film. In the case of the numeric keypad 17, the cut flag is 1, so that the input data is displayed and sent to the temporary storage memory. And
If the sheet key 26 is pressed and the cut flag is not 1,
After the previous setting content is transferred from the PLU memory to the temporary storage memory, it is displayed and the cut flag becomes 1. on the other hand,
If the cut flag is 1, it is determined whether or not the cut length in the temporary storage memory is the specified data. Here, the cut length is 25, 30, 35, 40, 4
Any one of 5, 50, 55, and 60 cm is the specified data, and the other numerical values are errors, the error flag is set to 1, and the above-described error processing is performed. If the data is the specified data and the mode is the weighing mode, the contents of the temporary storage memory are transmitted to the system controller 30, the weighing mode is displayed, and the setting of the cut length is completed. On the other hand, in the setting mode, the contents of the temporary storage memory are sent to the PLU memory, the setting mode is displayed, and the setting of the film cut length is completed. After such key processing, control for a normal balance or printer is performed according to FIG. FIG. 10 shows a main flow in the automatic packaging machine 1. The automatic wrapping machine 1 is in a standby state until a limit switch for detecting an article at the entrance thereof is turned on and the weighing completion signal becomes H level, and thereafter is controlled by an operation mode given from the system controller 30. Now, if the operation mode is "4", while the goods are being conveyed by the packaging conveyor 3, the goods are packed by the film cut by the film cut length from the system controller 30 side, and the goods are packed to the weighing conveyor 4 side. Sent. If the operation mode is “2”, the article only passes through the automatic packaging machine 1 and no film is output. If the operation mode is other than “4” or “2”, the article is conveyed from the packaging conveyor 3 while the article is cut by the film cut by the film cut length set by the operation unit 14 of the automatic packaging machine 1. Is performed. That is, according to the present embodiment, the setting of the PLU data of the automatic weighing and value adding machine 2 is performed by performing a key operation on the operation unit 15, and at this time, the cut length of the packaging film is also changed. Operation unit 15 in PLU data
The film cut length corresponding to the product number is automatically called from the PLU memory and set by a PLU operation for retrieving the product number later, and related to the film cut length. Operation is simplified. Here, even if the products have the same product number, the size differs depending on the product, and the cut length of the film may need to be changed. However, as shown in the flowchart of FIG. In this case, the length of the film cut can be temporarily changed, so that it can be dealt with. Further, depending on the mode of use, there are cases where it is desired to set the film cut length on the automatic packaging machine 1 side. However, in this embodiment, not only the PLU setting but also the setting on the automatic packaging machine 1 side is possible. And can be selected by the changeover switch 27. Further, by setting the operation mode on the automatic weighing and value adding machine 2 side, the operation control on the automatic packaging machine 1 side including the setting of the film cut length can be further simplified. As described above, the present invention provides an automatic packaging machine for wrapping a conveyed product with a packaging film, a weighing conveyor for outputting the weight of the product, and a product on the weighing conveyor.
It calculates the price of the product based on the output of the beauty weighing unit Oyo Product data call from the stored PLU data for each discharge means and PLU for discharging to issue the label label issuing unit and the label issuing unit Automatic weighing and weighing machine integrated with an automatic weighing and weighing machine equipped with a label affixing section that has an affixing conveyor that affixes the label issued to the product, immediately after the power switch is turned on, and Stop
The discharging means when the state is switched from the operating state to the operating state.
Driving and discharging the goods on the weighing conveyor
Initial discharge operation to rotate the pasting conveyor forward for a predetermined time
Means, goods and garbage are not present on the weighing conveyor.
Without weighing errors.
Also, due to product or pack leakage on the sticking conveyor
Meat pieces, film fragments due to packing mistakes, etc. may remain
The product can be transported smoothly.
Has the effect of

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective view showing an embodiment of the present invention. FIG. 2 is a schematic plan view. FIG. 3 is a front view of an operation unit. FIG. 4 is a block diagram. FIG. 5 is a main flowchart of the system controller. FIG. 6 is a flowchart of a discharging operation. FIG. 7 is a flowchart of each mode process. FIG. 8 is a main flowchart of the automatic weighing and value adding machine. FIG. 9 is a flowchart of a key process. FIG. 10 is a flowchart of the automatic packaging machine. [Description of Signs] 1 Automatic packaging machine 2 Automatic weighing and value adding machine 4 Weighing unit 8 Label sticking unit 9 Label issuing unit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-20626 (JP, A) JP-A-56-100318 (JP, A) Full-fledged 1979-78922 (JP, U) (58) Investigation Field (Int.Cl. ⁶ , DB name) G01G 19/00-23/48 B65C 1/00-11/02 G07G 1/00-1/14 B65B 57/00-57/20

Claims (1)

(57) [Claims] An automatic wrapping machine that wraps the conveyed goods with a wrapping film, a weighing conveyor that outputs the weight of the goods, and this meter
Product data call from the stored PLU data for each discharge means and PLU for discharging the product on amount conveyor and
Label <br/> Le sticking part having a sticking conveyor for affixing a label issued by calculating the price of the product and the label issuing unit for issuing a label in the label issuing unit based on the output of the weighing unit to the Product The power switch was turned on in the automatic packaging weighing machine integrated with the automatic weighing machine with
Immediately after or when the machine is switched from the stopped state to the operating state
When the discharging means is driven, the goods on the weighing conveyor are
And the attached conveyor is rotated forward for a predetermined time.
An automatic packaging weighing and valuing machine provided with an initial discharge operation means for causing the automatic weighing operation.