JP3474097B2 - Weighing / packing pricing machine and method of transporting articles to be packaged - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention conveys an article to be packaged, which has been weighed by a weighing apparatus, to a packaging apparatus by means of a carry-in apparatus, and packages the packaged article. The present invention relates to a weighing and packaging price machine attached to an article to be packaged, and a method for transporting the article to be packaged after weighing in the weighing and packaging price machine to a packaging device.

[0002]

2. Description of the Related Art Conventionally, examples of this kind of weighing and packaging pricing machine include, for example, Japanese Patent Publication No. 63-294 and Japanese Patent Laid-Open No. 9-2.
The one disclosed in Japanese Patent Publication No. 07911 is known. In the carrying-in device disclosed in the publication, an endless belt is provided with a pushing conveyor in which two pushing claws are attached at equal intervals, and a weighing device is arranged in an article placing portion of the pushing conveyor. When the pushing conveyor is driven, the pushing claw at the standby position (origin position of one cycle operation) rotates, and the articles to be packaged placed on the article placing part and weighed by the weighing device are transferred to the packaging device by the pushing claw. Will be sent.
When the preceding article to be packaged is pushed out by the pushing claw and comes off the article placing section, the article to be wrapped subsequently placed on the article placing section can be weighed by the weighing device.

[0003]

It takes time for the weighing device to weigh the articles to be packaged, and in the case of drivingly controlling the loading device of this type, generally, the articles placed on the article placing section are generally used. When the weighing value of the packaged article is stable, the weighing is completed, and the pushing conveyor is driven based on the completion of the weighing to start one cycle operation. Therefore, after the preceding article to be packaged is removed from the article placement section, the pushing conveyor completes one cycle operation and the pushing claw is in the standby position (one cycle operation origin position).
By the time when the following article to be packaged has been placed on the article placing section and the weighing has been completed by the weighing device, the pushing conveyor continuously performs one subsequent cycle operation and continues. The article to be packaged is pushed to the packaging apparatus, and the packaging apparatus also performs the subsequent one cycle operation in synchronization with the pushing conveyor. That is, a push conveyor (carry-in device)
In, by the end of the preceding one cycle operation,
When the subsequent article to be packaged is placed on the article placing section, the 1 cycle operation for the subsequent article to be packaged is performed by the preceding 1
In order to continuously perform the cycle operation, the weighing completion waiting period in which the subsequent packaged article can wait for the completion of weighing is in this case the preceding one cycle operation, and the preceding packaged article is placed on Leading 1 from the time when it was removed from the department
This is the period until the end of the cycle operation.

However, in the drive control of such a carry-in device, depending on various circumstances such as the number of pushing claws attached to the endless belt, the total length of the pushing conveyor, and the positional relationship between the pushing conveyor and the packaging device, the standby state may occur. If the pushing claw to push the article to be packaged on the article placing section and the article to be wrapped on the article placing section are separated from each other when the pushing conveyor is in the position and performs one cycle operation, It takes time for the pushing claws to rotate from the standby position and come into contact with the article to be packaged on the article placing portion by the distance. Therefore, the time from when the article to be packaged is detached from the article placing portion to when the pushing conveyor completes one cycle operation is shortened. That is, the waiting period for completion of weighing for the push conveyor to continuously perform one cycle operation is shortened. On the other hand, the time required from the placing of the article to be packaged on the article placing section to the completion of weighing varies depending on the weight of the article to be packaged and the manner of placement (roughness) by the operator. Therefore, if the above-described waiting period for completion of weighing is shortened, the number of articles to be packaged that have not been weighed by the time the transport conveyor completes one cycle operation increases, and the weighing and packaging price machine can perform continuous one cycle operation. Therefore, the predetermined processing ability cannot be exerted. This situation becomes more remarkable as the processing capacity of the weighing and packaging pricing machine becomes higher.

It is an object of the present invention to extend a weighing completion waiting period for an article to be packaged for performing a continuous one cycle operation in a weighing and packaging price machine.

[0006]

The present invention will be described with reference to the reference numerals in the drawings (FIGS. 1 to 9) of the embodiments described later. Claim 1
The weighing and packaging price machine according to the invention is configured as follows.

[0007] This weighing and packaging price machine is used for packaging articles (7).
A packaging device (1) for packaging the film with a film (11),
A weighing device (4) for weighing the articles to be packaged (7) carried into the packaging apparatus (1) and the articles to be packaged (7) weighed by the weighing apparatus (4) are packaged based on the completion of the weighing. A loading device (2) for transporting to the device (1). The weighing device (4) is provided with a placing portion (20) on which the article to be packaged (7) is placed during weighing. The carrying-in device (2) is provided with a carrying member (28) which passes through the placing part (20) of the weighing device (4) by one cycle operation, and the carrying part (28) allows the placing part to be placed. (20) The article to be packaged (7) above is conveyed to the packaging device (1).

Further, this weighing and packaging price machine is provided with the following control means (6). When the succeeding article to be packaged (7) is placed on the placing part (20) of the weighing device (4) by the time the transport device (2) finishes the preceding one-cycle operation, The subsequent 1-cycle operation is started successively with the preceding 1-cycle operation.

The preceding article to be packaged (7) during the preceding one-cycle operation in the carry-in device (2) is placed on the placing portion (20).
From the time point (B) when it is conveyed to the outside of the container, the conveying member (28) after starting the subsequent one cycle operation in the carry-in device (2) has the following packaged article (7) on the placing section (20). ) Is started until the time (C) before the start of the conveyance of the product (7) is set as a measurement completion waiting period (T) in which the completion of the measurement of the subsequent packaged article (7) can be waited.

The invention of claim 2 adds the following configuration to the invention of claim 1. The packaging device (1) and the carry-in device (2) can be driven independently of each other. In the control means (6), the carrying member (28) is the mounting portion (20).
If the subsequent packaged article (7) on the placing part (20) has not been weighed by the time (C) before the conveyance of the subsequent packaged article (7) is started, Stop the loading device (2). After the stop, the carry-in device (2) is re-driven at the time when the weighing of the following article to be packaged (7) on the placing section (20) is completed.

The invention of claim 3 is configured as follows. To the packaging device (1) for weighing the article to be packaged (7) with the weighing device (4) and packaging the article to be packaged (7) with the film (11), the article to be packaged (7) that has been weighed.
In the method for transporting packaged articles of a weighing and packaging price machine for transporting a product by a carry-in device (2), the preceding one cycle operation of the carry-in device (2) for transporting the preceding packaged article (7) is completed, When the following packaged article (7) is placed on the weighing device (4), the subsequent packaged article (7)
Regardless of the completion of the weighing for, the subsequent 1-cycle operation of the loading device (2) is started successively with the preceding 1-cycle operation.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A weighing and packaging price machine according to an embodiment of the present invention will be described below with reference to the drawings. <Outline of weighing and packaging pricing machine shown in FIGS. 1 (a) and 1 (b)> This weighing and packaging pricing machine is roughly classified into a so-called push-up stretch film packaging machine similar to the conventional one, a weighing and pricing device, and a control. And the device 6.

This stretch film wrapping machine is roughly classified into a wrapping machine 1, a carry-in machine 2, a carry-out machine 3, and a wrapping machine controller 35 (see FIG. 6) which constitutes the controller 6.
(See (b)) and. The weighing and pricing device is roughly classified into a weighing device 4 and a pricing device 5 (labeler).
And a weighing-value-apparatus control device 36 (see FIG. 6B), which constitutes the control device 6, which will be described later.

In FIG. 1 (a), the horizontal direction in which the carry-in device 2 conveys the articles 7 to be packaged (the trays on which products such as food are placed) is defined as the front-rear direction X, and the articles 7 to be packaged 1 shall be carried in from the front side to the rear side. Further, in FIG. 1B, the horizontal direction orthogonal to the front-rear direction X is defined as the left-right direction Y.

The carry-in device 2 (described in detail later) is arranged on one side of the front part of the packaging device 1 so as to extend in the front-rear direction X over the inside and outside thereof. The unloading device 3 is disposed on the upper front side of the packaging device 1 and extends in the left-right direction Y, and a first unloading conveyor 8 and, in succession to the first unloading conveyor 8, extends in the front-rear direction X. A second carry-out conveyor 9 is provided.

The weighing device 4 (described later in detail) is installed outside the packaging device 1 inside the outer end portion of the carry-in device 2. The price assigning device 5 is arranged above the connecting portion between the first unloading conveyor 8 and the second unloading conveyor 9 in the unloading device 3.

The control device 6 (described in detail later) is disposed on the upper front side of the packaging device 1, and is provided with a packaging machine operation portion 6a and a weighing value indicator display portion 6b. Although not shown, the packaging device 1 includes a film supply mechanism, a lift mechanism, a film folding mechanism, and a sealing mechanism. This film supply mechanism includes a film 11 drawn from a film winding roll 10 arranged on the upper rear side of the packaging device 1.
Is cut into a predetermined length and then supplied to the packaging unit S. This lift mechanism has a lift 12 corresponding to the inner end of the carry-in device 2 inside the packaging device 1. This lift 12
Moves up and down between the inner end of the carry-in device 2 and the wrapping part S, and puts the article to be packed 7 carried in from the carry-in device 2 on the wrapping part S.
Supply to. The film folding mechanism folds and wraps the film 11 by the folding members on the article 7 to be packaged on the lift 12 at the packaging section S. This sealing mechanism
The folded portion of the film is adhered to the lower side of the packaged article 7 by heat.

In this packaging apparatus 1, as shown in FIG. 6 (a), the drive cam 13 is rotated by the packaging apparatus main drive motor 14, and the cam drive shaft 13a, which is the center of rotation of the drive cam 13, rotates once. Then, the drive cam 13 causes the packaging device 1 to perform one cycle operation (one lifting operation in the case of the lift 12). A packaging device origin position detection sensor 15 for detecting the origin position of the packaging device 1 is attached to the cam drive shaft 13a, and a packaging device pulse transmitter 16 is provided on an output shaft 14a of the packaging device main drive motor 14. (Encoder) is attached.

<Details of the carry-in device 2 and the weighing device 4>
As shown in FIG. 1A, FIG. 6A, and FIGS. 2 to 4, the carry-in device 2 is disposed on one side of the front part of the packaging device 1,
The weighing device 4 is incorporated in the outer end of the carry-in device 2.

* The weighing device 4 The scale 17 is a so-called electronic scale including a load cell, etc. The scale 17 is attached to the frame 18, and the support member 19 is attached to the scale 17. The support member 19 includes left and right plate portions 19a standing on the scale 17 and an upper plate portion 19b mounted on the left and right plate portions 19a. On the upper plate portion 19b of the support member 19, a plurality of mounting portions 20 extending in the front-rear direction X are mounted side by side in the left-right direction Y with the same upper surface position. A positioning guide 21 is attached to the front end of each of the mounting portions 20 in a state of protruding upward. This positioning guide 21 is used for the packaged article 7
This is a guide for positioning the front end of the article 7 when the article is placed on the placing section 20. Further, article guides 31a are attached to both left and right sides of the upper plate portion 19b. When the article 7 to be packaged is placed on the plurality of placing sections 20 described above, the scale 17
When the weight signal is output from the balance 17 to the weighing value controller control device and it is determined that the weight signal is stable (the vibration of the weight signal converges), the weighing completion signal w is output. To be done. Note that the stability of the weight signal may be determined by the weighing device controller 36. In this case, when the weight signal is stabilized, the weighing permission control device 36 outputs the later-described packaging permission signal v corresponding to the weighing completion signal w.

* The carry-in device 2 The carry-in device 2 is equipped with a belt-conveying mechanism-type push-out conveyor 22 that is a wrapping and conveying mechanism.
2 is configured as follows.

A drive shaft 23 extending in the left-right direction Y is supported at a rear end of a frame 18 extending in the front-rear direction X, and a driven shaft 2 extending in the left-right direction Y at a front end thereof.
4 are supported. A plurality of drive pulleys 25 are integrally rotatably supported on the drive shaft 23 and arranged side by side in the axial direction. A plurality of driven pulleys 26 are rotatably supported on the driven shaft 24 between the front ends of the respective mounting portions 20 and arranged side by side in the axial direction. An endless belt belt 27 (timing belt) is stretched between each driving pulley 25 and each driven pulley 26 that are adjacent to each other in the front-rear direction X. Two pushing claws 28 (a pushing member and a conveying member) are equally spaced (strip belt 27) on each belt 27.
It is attached at half the total length). As shown in FIG. 4, of the two pushing claws 28, one pushing claw 28 of each belt 27 is adjacent to the belt 27.
Between the belt-shaped belts 2 arranged in parallel in the left-right direction Y, and the other feeding claws 28 of the belt-shaped belts 27 are also adjacent to each other.
7 are arranged side by side in the left-right direction Y. The upper horizontal belt portions 27a of the belt-shaped belts 27 are located between the mounting portions 20. A plurality of bed plates 29 extending in the front-rear direction X between the rear ends of the mounting portions 20 and the drive shaft 23 are arranged in parallel in the left-right direction Y corresponding to the mounting portions 20. . A pusher conveyor drive motor 30 is installed at the rear end of the frame 18. The pushing conveyor drive motor 30 and the packaging device main drive motor 14 of the packaging device 1 can be driven independently of each other. The drive shaft 23 is driven by the drive conveyor driving motor 30.
Rotate with each belt 27. The one pushing claw 28 and the other pushing claw 28 project above the respective mounting portions 20 and the respective bed plates 29 with the rotation of the respective belt-shaped belts 27, and on the respective mounting portions 20 and the respective bed plates 29.
The article 7 to be packaged is pushed on and conveyed. In addition, frame 1
The article guides 31b are attached to the bed plate 29 adjacent to the bed plate 29 in the left-right direction Y at the upper left and right sides of 8.

The carry-in device 2 has the following electrical structure in addition to the above-mentioned push-out conveyor 22. A first article detection sensor 32 that detects the article 7 to be packaged placed on the placing section 20 is installed on the frame 18. The first article detection sensor 32 includes a light projecting section 32a and a light receiving section 3
2b and the light projected between them is placed on the mounting portion 2
Pass above 0 horizontally. By blocking this light,
The presence or absence of the article 7 to be packaged is detected.

The bed plate 29 is attached to the frame 18.
A second article detection sensor 33 that detects the front end of the article 7 to be packaged that is pushed up is installed. The second article detection sensor 33 includes a light projecting section 33a and a light receiving section 33b,
The light projected between them passes through the bed plate 29 in the vertical direction. The light once blocked by the pushing of the article 7 to be packaged again passes through in the vertical direction, so that the front end of the article 7 to be packaged is detected. Thus, detecting the front end of the article 7 to be packaged is equivalent to detecting the rear end of the pushing claw 28.

A pulse transmitter 34 for the push conveyor is installed near the drive shaft 23. This pulse oscillator 34 is
Slit disk 34 attached to drive shaft 23 and rotating integrally
a and the slit disk 34 attached to the frame 18
and a photoelectric sensor 34b for detecting a. Drive shaft 23
One pulse signal is transmitted each time the light of the photoelectric sensor 34b passes through each slit of the slit disk 34a that rotates with it.

<Control Unit 6> * Connection between the control unit 6 and various input side devices and output side devices described below. As shown in FIG. 6 (b), the control unit 6 is a packaging machine control unit 35. And a weighing and price instrument control device 36.
On the input side of the packaging machine control device 35, the packaging device origin position detection sensor 15, the packaging device pulse transmitter 16, the first article detection sensor 32, the second article detection sensor 33, and the feeding conveyor are provided as input side equipment. The pulse generator 34 for measurement is connected, and the control device 36 for weighing value instrument is connected. On the output side of the packaging machine control device 35,
As the output side device, the packaging device main drive motor 14
Is connected to the drive motor 30 for driving the conveyer. The weighing device 4 is connected to the input side of the weighing device controller 36 as an input side device, and the pricing device 5 is connected to the output side of the weighing device controller 36 as an output device. ing. The control device 6 (the packaging machine control device 35 and the weighing value attaching device control device 36) drives and controls the output side device based on various signals from the input side device.

<Drive Control by Control Device 6 Shown in FIG. 6 (b)> In the weighing device 4, when the article 7 to be packaged is placed on the placing portion 20 as shown in FIG. 5 (a) and FIG. 17
Thus, the weight of the article 7 to be packaged is measured. In this case, the weighing is completed when the weighing (weight signal) is stable, and based on the weighing completion signal w output from the weighing machine 17 at this time, the packaging permission signal v is sent from the weighing value attaching device control device 36 to the packaging machine control device 35. Is sent, and the weighing and pricing device control device 36 calculates the price of the product based on the weight signal from the weighing device 4. The information is sent to the pricing device 5, and in the pricing device 5, the price is printed on the label by the printing unit, and the price is printed on the packaged article 7 that has been carried out from the packaging apparatus 1 to the article unloading apparatus 3. A label is attached.

Note that the weighing device controller 36, for each product, includes a product number (code number), product name, unit price, tare (total weight of tray and film, that is, weight other than product), additives, etc. Other product information is stored, the product weight is calculated from the measured weight of the packaged article 7 and the memory tare, and the product price is calculated from the product weight and the stored unit price. When the price of the product is printed on the label, the weight, product name, unit price, other product information, and the like are also printed.

As shown in the timing chart of FIG.
The packaging machine control device 35 uses the packaging device origin position detection sensor 1
Based on the origin position signal m from 5 and other constant conditions, a drive signal is sent to the packaging device main drive motor 14 of the packaging device 1 to perform one cycle operation from the origin position to the origin position again to the packaging device 1. In addition, the carry-in device 2 sends a drive signal n to the drive motor 30 for driving the conveyor to drive the drive motor 30 intermittently in response to one cycle operation of the packaging device 1. During this driving, the pushing claw 28
As shown in FIG. 5, 1 push-feed claw interval (waiting position Q
To the standby position P described later, or the interval from the standby position P to the standby position Q). Pushing conveyor 22
In the one cycle operation, the articles 7 to be packaged, which have been weighed on the placing portion 20 of the weighing device 4, are conveyed from the placing portion 20 by the pushing claw 28 and further on the bed plate 29. And is transferred onto the lift 12.
Further, in the one cycle operation of the packaging device 1 synchronized with the one cycle operation of the pushing conveyor 22, the article to be packed 7 placed on the lift 12 is lifted and packaged by the one cycle operation of the preceding pushing conveyor 22. It

As shown in FIGS. 5 (a) and 2, one of the pushing claws 28 has an upper horizontal belt portion 27 of the belt belt 27.
The lift 1 that stops at the rear end of a and is at the lowest position
The article 7 to be packaged is transferred onto the sheet 2. At this time, the other pushing claw 28 stops at the substantially front end of the lower substantially horizontal belt portion 27b of the belt belt 27. Both stop positions of the pushing claw 28 are both standby positions P and Q, and the front end of the preceding packaged article 7 transferred onto the lift 12 by the one pushing claw 28 is stopped at the waiting position P. Positioned by the rear end of the pawl 28, the other pushing pawl 28 is followed by the article to be packaged 7.
It waits at this waiting position Q for pushing.

Drive control of the carry-in device 2 The packaging device main drive motor 14 is driven by the packaging device 1, the drive cam 13 rotates, and the lift 12 is at the lowest position as shown in the timing chart of FIG. One cycle operation of the packaging device 1 is started from the origin position state. When a predetermined time elapses after the start of this one-cycle operation, the lift 12 rises by a predetermined amount as shown in FIG. 5B, and the lift 12 is moved by the pushing claw 28 at the standby position P as shown in FIG. 5A. The preceding article 7 to be packaged that has been placed and positioned on the upper side is separated from the pushing claw 28 upward, and is in an avoiding state in which it is not pushed by the pushing claw 28. In this avoidance state, the pusher conveyor drive motor 3
0 is driven, and the pushing claw 28 starts rotating from the standby positions P and Q. It should be noted that at the time point A when the wrapping apparatus 1 starts the one-cycle operation and enters the avoidance state, the wrapping apparatus pulse attached to the output shaft 14a of the motor 14 is driven after the wrapping apparatus main drive motor 14 is driven. Transmitter 16
Is detected when the pulse counter for the packaging machine in the packaging machine controller 35 has counted a predetermined number of pulses, and at the time point A when the predetermined number of pulses are counted, the packaging machine controller 35 drives the feeding conveyor drive motor 30. The signal n is sent. That is, in the one cycle operation of the push conveyor 22 (the carry-in device) synchronized with the packaging device 1, the drive start time of the push conveyor drive motor 30 is the time A.

The pushing claw 28 pushes the article 7 to be packaged on the placing section 20 and crosses the placing section 20, and the second article detection sensor 33 causes the front end of the article 7 to be wrapped (the rear end of the pushing claw 28). Equivalent to) is detected. After receiving the detection signal, the packaging machine control device 35 stops the drive signal n to the push conveyor drive motor 30 when a predetermined number of pulses from the push conveyor pulse transmitter 34 are counted by the push conveyor pulse counter, The pushing claw 28 stops at the standby position P. The stop time of the drive conveyor drive motor 30, that is, the predetermined pulse count time, is set to a time slightly earlier than the end time of the one-cycle operation in which the packaging device 1 starts driving from the origin position and reaches the origin position again. There is. Therefore,
As shown in FIG. 7, the one-cycle operation of the pushing conveyor 22 (the carry-in device) synchronized with the one-cycle operation of the packaging apparatus 1 is an operation during a period in which the packaging apparatus 1 is driven and the origin position is returned to the origin position again. , Pusher conveyor drive motor 30
Stopping (pushing pawl 28) → Driving the pushing conveyor drive motor 30 (rotation of the pushing pawl 28) → Pushing conveyor drive motor 3
0 (the pushing claw 28) is stopped. In addition, the driving speed of the pushing conveyor drive motor 30 (the rotation speed of the pushing claw 28) is
After the pushing claw 28 rotates from the standby position Q and comes into contact with the article 7 to be packaged on the placing portion 20, the speed is low for a while, then becomes high, and then becomes low again before stopping. Then, the drive signal n to the drive motor 30 for the feeding conveyor is output. Therefore, the impact when the pushing claw 28 comes into contact with the packaged article 7 and the slippage of the packaged article 7 due to the inertia when the pushing claw 28 stops are reduced.

During the operation of the pushing conveyor 22, as described above, the article to be packaged 7 placed on the placing section 20 is pushed by the pushing claw 28, and as shown in FIG. When the rear end of the pushing claw 28 reaches the rear end of the placing section 20 and the article 7 to be packaged comes off the placing section 20, the completion of weighing of the article 7 to be packaged thereafter can be waited. At the time B when the rear end of the pushing claw 28 reaches the rear end of the placing portion 20, the pulse from the pulse generator 34 for the pushing conveyor is started after the driving of the driving motor 30 for the pushing conveyor is started, and the pushing conveyor in the packaging machine controller 35 is driven. It is detected by the pulse counter for counting a predetermined number. Therefore, the time point B in the one-cycle operation of the pushing conveyor 22 (the carry-in device) synchronized with the packaging device 1 is
This is the time when the predetermined number of pulses are counted after the time A described above.

* Drive control relating to continuous one cycle operation The preceding packaged article 7 is pushed by the pushing claws 28 from the placing section 20, so that the following packaged article 7 can be placed on the placing section 20. However, by the time the one cycle operation of the pushing conveyor 22 for the preceding article to be packaged 7 and the one cycle operation of the packaging device 1 synchronized with this, the subsequent article to be packaged 7 is placed on the placing portion 20. When placed, when the first article detection sensor 32 detects the subsequent article 7 to be packaged, the packaging device 1 and the pushing conveyor 22 complete the weighing of the subsequent article 7 to be packaged (the weighing machine controller 36 controls the packaging machine). Device 3
5), the subsequent 1-cycle operation is started in synchronization with the end of this 1-cycle operation.

When the first article detection sensor 32 continuously outputs a detection signal for a predetermined time or longer until the end of the one cycle operation before the end of the one cycle operation of the wrapping apparatus 1 and the pushing conveyor 22 which are synchronized with each other, the first article detection sensor 32 receives the detection signal. It is assumed that the packaged article 7 is placed on the placing section 20, and erroneous recognition of placing the packaged article is eliminated. Another reason for adding the transmission time of the first article detection sensor 32 to the condition is that the packaging device 1
And, even if the article 7 to be packaged is placed on the placing section 20 by the end of the synchronized one-cycle operation of the pushing conveyor 22, if the time point E at which it is placed is slow, that is, the transmission time is short, it will be described later. In some cases, even if the weighing completion waiting period T is reached until the time point during the subsequent continuous one cycle operation, the weighing of the packaged article 7 may not be completed, and the weighing completion waiting period T
This is for performing the continuous one-cycle operation as described above on the packaged article 7 placed at the time when the weighing is completed. Therefore, this condition corresponds to various setting conditions (for example, processing capacity, in other words, 1
It is not essential depending on the cycle operation time).

Explaining this point in detail, after the first article detection sensor 32 has placed the article 7 to be packaged, the one cycle operation of the packaging apparatus 1 is continuously detected until the point of origin (the point of reaching the origin), and the predetermined time is detected. A signal is emitted, and the packaging device 1 reaches the origin position and the packaging device origin position detection sensor 1
When 5 outputs the origin position signal m, the packaging machine controller 35 continuously sends a drive signal to the packaging machine main drive motor 14 based on both signals, and the packaging machine 1 and the pushing conveyor 22 continue the preceding one cycle operation. Then, the subsequent 1-cycle operation is synchronously started.

As described above, at the time point A in the subsequent one cycle operation, the pushing conveyor 22 is driven to rotate the pushing pawl 28 from the standby position Q, and the pushing pawl 28 is placed as shown in FIG. When the weighing of the succeeding packaged article 7 is completed (time point F) by the time point C reaching the predetermined position R a little before contacting the succeeding packaged article 7 on the part 20, that is, the weighing value attaching device control device. When the packaging permission signal v is transmitted from 36, the packaging machine control device 35 causes the packaging device 1 and the pushing conveyor 22 to perform the normal one-cycle operation as they are.

In the subsequent one cycle operation, the pushing claw 2
At time point C before the time point D at which the contact point 8 comes into contact with the subsequent packaged article 7 on the placing portion 20, the waiting for completion of weighing of the subsequent packaged article 7 by the transmission of the packaging permission signal v. It is the latest time to do so. That is, this time point C is the end time point of the weighing completion waiting period T for the subsequent packaged article 7. Since the front end of the article 7 to be packaged is regulated by the positioning guide 21 attached to the front end of the mounting portion 20, the predetermined position R is set to a position slightly ahead of the positioning guide 21 in the carrying-in direction. .

Pushing conveyor 22 synchronized with the packaging device 1
At a time point C when the pushing claw 28 reaches the predetermined position R in one cycle operation of the (loading device), the pushing conveyor drive motor 3
After the driving is started, the feeding claw 28 rotates from the standby position Q and the pulse from the pulse generator 34 for the feeding conveyor is detected by the pulse counter for the feeding conveyor in the packaging machine controller 35 counting a predetermined number. Therefore, the time point C in the one-cycle operation of the pushing conveyor 22 (the loading apparatus) synchronized with the packaging apparatus 1 is the time point when the predetermined number of pulses are counted after the time point A.

Incidentally, as described above, the pushing conveyor 22
In the preceding one-cycle operation, when the preceding article 7 to be packaged is pushed by the pushing claw 28 and comes off the placing part 20, that is, the time when the rear end of the pushing claw 28 reaches the rear end of the placing part 20. From B, it is possible to wait for the completion of weighing by the packaging permission signal v for the subsequent articles to be packed 7, and this time point B is the start time point of the weighing completion waiting period T.

On the other hand, as shown in the timing chart of FIG. 8 (see comparison with the timing chart of FIG. 7), the pushing conveyor 22 rotates and the pushing claw 28 hits the following article 7 to be packaged on the placing section 20. Even when the time reaches the predetermined position R, which is a short time before the contact, when the subsequent weighing of the article to be packaged 7 is not yet completed and the packaging permission signal v is not transmitted, the packaging machine control device 35 at the time C. The output of the drive signal n to the push conveyor drive motor 30 is temporarily stopped. Then, after the drive signal n is stopped, the pushing conveyor 22 slightly rotates due to inertia, but the pushing claw 28 is stopped at a position near the subsequent article 7 to be packaged. At this time, the packaging machine control device 35 causes the packaging device 1 to continuously perform the one-cycle operation without stopping, and stops the operation when the packaging device 1 receives the origin position signal m when the packaging device 1 reaches the origin position. Let Therefore, the preceding article 7 to be packaged is packaged.

Thereafter, at the time point G when the weighing of the following articles 7 to be packaged is completed and the packaging permission signal v is received, the packaging machine control device 35 outputs the drive signal m to the pushing conveyor drive motor 30 again. Then, the drive motor 30 for the push conveyor is re-driven, and the remaining operation of the drive operation of the push conveyor 22 is performed. That is, the pushing claw 28 is moved from the vicinity position described above, and thereafter, the second article detection sensor 33 detects the front end of the article 7 to be packaged in the same manner as described above, and then the pulse from the pushing conveyor pulse transmitter 34 is applied. When a predetermined number is counted, the pushing conveyor drive motor 30 is stopped, the pushing claw 28 is stopped at the standby position P, and the succeeding article 7 to be packaged is on the lift 12 stopped at the origin position (lowermost position). Reprinted in.

When the pushing conveyor 22 is once stopped in this way, the packaging apparatus 1 has completed one cycle operation and has received the origin position signal m from the origin position detection sensor 15, and the article to be packaged 7 Based on the receipt of the packaging permission signal v (completion of measurement), the pushing conveyor drive motor 30 is stopped again (the pushing claw 28 is stopped at the standby position P),
The wrapping machine control device 35 sends a drive signal to the wrapping device main drive motor 14 to cause the wrapping device 1 and the push conveyor 22 to move 1
Synchronize and restart the cycle operation. For example, by re-driving the pushing conveyor drive motor 30, the article 7 to be packaged on the placing section 20 is pushed by the pushing claws 28 and is removed from the placing section 20, and then the following article 7 to be wrapped is immediately placed. Table 20
In the case where it is placed on the top of the article 7 to be packaged, one cycle operation of the packaging device 1 is completed at the time of re-stopping the drive conveyor driving motor 30 as shown in the timing chart of FIG. If the weighing is completed (time H), at the same time as the stop of the drive conveyor drive motor 30,
The one cycle operation of the packaging device 1 and the pushing conveyor 22 is restarted in synchronization.

<Characteristics of this Embodiment> This embodiment has the following *
(Excluding other technical ideas described below). * Since the weighing completion waiting period T for the packaged article 7 becomes long, the weighing and packaging price machine can be operated continuously for one cycle, and the measurement and packaging price process for the packaged article 7 can be efficiently performed. Together with the article to be packaged 7
Can be smoothly packaged. Especially, even if the processing capacity of the weighing and packaging pricing machine is high,
The cycle operation can be performed, and the number of weighing / packing price processes for the packaged article 7 can be increased.

* If the weighing of the packaged article 7 is not completed before the pushing claw 28 contacts the packaged article 7, the carry-in of the packaged article 7 into the packaging apparatus 1 is temporarily stopped,
Since the weighing of the articles 7 to be packaged is waited, the articles 7 to be packaged that have not been weighed are not packaged, and the articles 7 to be packaged can be smoothly packaged.

* The articles 7 to be packaged within the waiting period T for completion of weighing.
If the weighing is not completed, the feeding conveyor 22 is temporarily stopped, and at the time point G when the weighing is completed, the feeding conveyor 2
Is re-driving 2. That is, after the measurement completion waiting period T for the article to be packaged 7 is lengthened, the pushing conveyor 22 is stopped for the amount of time that is not in time for the measurement completion waiting period T in the weighing time required for the article 7 to be packaged. Therefore, this stop time is shortened, and the reduction in the processing capacity of the weighing and packaging pricing machine can be minimized. In addition, regardless of the stop of the feeding conveyor 22, the packaging device 1
Continuously operates, the packaging action on the article 7 to be packaged is not disturbed, and the article 7 to be packaged can be in a good packaging state. Therefore, the packaged article 7 can be smoothly packaged.

[Other Embodiments] Other than the above embodiment, the following * may be configured. (A) In the pushing conveyor 22 according to the present embodiment, each belt-shaped belt 27 is provided with two pushing pawls 28 at equal intervals. Instead of this configuration, FIG. 9 (a) (b) (c)
As shown in (d) and (e), each belt-shaped belt 27 is provided with one pushing claw 28, or each belt-shaped belt 27 is provided with three or more pushing claws 28 at equal intervals. When there is one pushing claw 28 as shown in FIG. 9A, the pushing claw 28 has only one standby position, and the position corresponding to the standby position Q in the above embodiment is the same as the standby position P in the above embodiment. The position. Figure 9
When three or more pushing claws 28 are provided as shown in (b), (c), (d) and (e), the waiting position of the pushing claws 28 is the pushing claw 2.
Although the number is the same as the number of eight, the standby position which is adjacent to the mounting unit 20 of the weighing device 4 on the upstream side in the rotation direction of the pushing conveyor 22 corresponds to the standby position Q in the above-described embodiment.

(B) In the above-described embodiment, the article 7 to be packaged placed on the placing section 20 of the weighing device 4 is operated by one cycle of the pushing conveyor 22 (movement of the interval between the pushing claws 28). It was sent to the lift 12. Instead of this configuration,
The article to be packaged 7 is pushed to the lift 12 by a plurality of cycle operations (movements that are multiple times the interval between the pushing claws 28). For example,
In the case as shown in FIG. 9E, when the pushing claw 28 at the waiting position Q moves to the waiting position P in one cycle operation, the article 7 to be packaged on the placing portion 20 once moves to a predetermined position on the pushing conveyor 22. The article 7 to be packaged is then pushed onto the lift 12 in the subsequent one-cycle operation.

(C) The pushing conveyor 22 of the above embodiment
, The standby position P of the feeding claw 28 is set to the belt-shaped belt 27.
The position is substantially the rear end of the upper horizontal belt portion 27a.
Instead of this structure, as shown in FIGS. 9B and 9D, and as disclosed in Japanese Patent Laid-Open No. 9-207911, a belt belt 27 is hung across the hoistway of the lift 12. When passed, the state where the positioning stop position in the pushing direction of the packaged article 7 in the hoistway of the lift 12 is the standby position P of the pushing claw 12.

(D) The pushing conveyor 22 of the above embodiment
In the above, the standby positions P and Q of the pushing claw 28 are set to positions substantially at the rear end of the upper horizontal belt portion 27a of the belt-shaped belt 27 and substantially front end of the lower substantially horizontal belt portion 27b. Instead of this configuration, the standby positions P and Q of the pushing claw 28 are set to the pulleys 25 and 2 respectively.
The position corresponds to the circular arc portion of 6.

(E) As shown in FIGS. 9C and 9D,
When the pushing conveyor 22 operates for one cycle, the placing section 2
For pushing the article 7 to be packaged placed on
Even when the standby position Q is at the front end position of the article 7 to be packaged, the push-conveyor drive motor 30 is driven and the push-feed pawl 28 starts rotating from the start point of one cycle operation of the push-feed conveyor 22. When there is a time required up to the time point, after the preceding article 7 to be packaged comes off the placing portion 20, the period until the time point A when the pushing conveyor drive motor 30 is driven in the subsequent one cycle operation is measured. The completion waiting period T ₁ (see FIG. 7) is set. In this case, at the time when the feeding conveyor drive motor 30 is driven, the packaging device main drive motor 14 is driven and the packaging device 1 is pushed by using the packaging device pulse transmitter 16 as in the above embodiment. The number of pulses after the start of one cycle operation synchronized with the conveyor 22 is counted and detected.

(F) In the above-described embodiment, the one-cycle operation of the pushing conveyor 22 is such that the pushing conveyor drive motor 30 is “stop → drive → stop”, but the invention is not limited to this. If there is a time required from the start of one cycle of the pushing conveyor 22 until the pushing claws 28 come into contact with the article 7 to be packaged on the placing portion 20, for example, the packaging device 1
The origin position is set to the highest position of the lift 12, and the drive conveyor driving motor 30 is set to “drive → stop → drive” in one cycle operation. Further, in the above-described embodiment, the driving speed is set to “low speed → high speed → low speed” while the pushing conveyor driving motor 30 is being driven, but this aspect is not essential, and the driving speed may be constant. (G) In short, from the time when the push conveyor 22 starts one cycle operation when the push conveyor 22 performs one cycle operation, the push claw 28 that should push the packaged article 7 on the placing portion 20 is the The effect of the present invention can be obtained if there is a required time (a time that cannot be ignored) by the time point D of contacting the packaged article 7. Moreover, in the said embodiment, the pushing nail 2 which should push the to-be-packaged article 7 on the mounting part 20.
The time point C when 8 reaches the predetermined position R, which is slightly before the contact with the article to be packaged 7, is the end time point of the measurement completion waiting period T.
This is because the waiting period T for completion of weighing is set to be the longest,
It is also possible to set an earlier time point than the time point C as the end time point of the measurement completion waiting period T. That is, the effect of the present invention can be obtained if there is a required time (a time that cannot be ignored) from the time point when the push conveyor 22 starts the one-cycle operation to this “earlier time point”.
This point also applies to the other embodiment (e). Therefore, "the time point before the conveying member starts to convey the succeeding article to be packaged on the placing portion" according to the invention of claim 1 means that the conveying member (the pushing claw 28) is placed on the placing portion 20. It is not limited to the meaning of "the time immediately before contacting the subsequent article 7 to be packaged, the time reaching the vicinity, or a time slightly before".

(H) In the above embodiment, the preceding packaged article 7 is pushed to the pushing claw 28 at the start point B of the weighing completion waiting period T for the subsequent packaged article 7, and the placing portion 20 is pushed.
The rear end of the pushing claw 28 is set to the mounting portion 2 when it comes off from above.
Although it is set to the time B when reaching the rear end of 0, it may be set to the time when the pushing claw 28 further advances from the rear end of the mounting portion 20. In other words, even if the time is “later than the time B”, if the time is before the earliest completion of weighing of the subsequent packaged article 7 placed on the placing section 20, the “time later” is applied. It is assumed that the packaged article 7 is removed from the placing section 20. Further, the articles 7 to be packaged handled by this type of weighing and packaging machine are trays on which foods and the like are placed.
As shown in Fig. 1 etc., the bottom of the tray is narrower than the top,
Since the side surface thereof is inclined, the time point when the preceding article 7 to be packaged is removed from the placing portion 20 is the time point when the bottom surface of the article 7 to be packaged is removed from the placing portion 20. This time point is earlier than the time point B. Therefore, "when the preceding article to be packaged is conveyed to the outside of the placing portion" according to the invention of claim 1, "the rear end of the pushing claw 28 reaches the rear end of the placing portion 20. The time point B is not limited to the meaning of “time point B”, that is, “time point when the front end of the preceding packaged article 7 reaches the rear end of the placing portion 20”.

(I) The packaging device 1 and the pushing conveyor 22 may be mechanically driven integrally, or a clutch may be interposed between them to be independently driven. However, in the case of mechanically integrated driving, only one of them cannot be stopped and driven as in the invention of claim 2.

(E) Although the packaging machine control device 35 and the weighing value attaching device control device 36 are separately provided in the above embodiment, as shown in FIG. This is device 6. The control device 6 is connected to the sensors 15, 32 and 33, the pulse transmitters 16 and 34, and the drive motors 14 and 30 as in the above-described embodiment, and the weighing device 4 and the pricing device. And 5 are connected. A weighing completion signal w is output from the scale 17 of the weighing device 4 to the control device 6 together with the weight signal. Alternatively, scale 1
The weight signal is output from 7 to the control device 6, and the stability of the weight signal is determined in the control device 6.
The determination of the weighing completion signal w or the weight signal corresponds to the packaging permission signal v in the above embodiment.

(L) In the above embodiment, the article to be packaged 7
The first article detection sensor 32 detects that the is placed on the placing section 20. As other detection means, for example, the placement of the packaged article 7 is detected by a weight signal emitted from the weighing device 4 when the packaged article 7 is placed on the placing section 20.

(W) In the above embodiment, the standby positions P and Q of the pushing claw 28 are defined by using the second article detection sensor 33 and the pulse transmitter 34 for the pushing conveyor. As another detection means, for example, as disclosed in Japanese Patent Laid-Open No. Hei 9-207911, a sensor for detecting the pushing claw 28 itself is arranged corresponding to the standby position of the pushing claw 28.

(W) In the above-mentioned embodiment, the drive start point A of the drive motor 30 and the start point B and end point C of the weighing completion waiting period T during one cycle operation of the pushing conveyor 22 are pulse-transmitted for the packaging apparatus. The number of pulses was counted and detected by the device 16 and the pulse generator 34 for the pushing conveyor. Instead of this configuration, a reference pulse (clock pulse) oscillator is adopted to detect them based on pulses emitted from the reference pulse oscillator, or a timer is adopted to detect them based on time. Further, the detection of the start point B and the end point C of the measurement completion waiting period T may be performed by disposing a sensor for detecting the pushing claw 28 itself corresponding to the position of the pushing claw 28 at these points. Good.

(F) In the above embodiment, the fact that the article 7 to be packaged has been placed on the placing section 20 by the end of one cycle operation of the pushing conveyor 22 is detected by the detection signal from the first article detection sensor 32. , And the origin position signal m from the origin position detecting sensor 15 for the packaging device which is transmitted at the end of one cycle operation in the packaging device 1. However, by adopting the reference pulse oscillator as in the other embodiment (W), the packing conveyor 1 and the corresponding one of the feeding conveyors 22 can be installed.
The end point of the cycle operation is specified by the predetermined pulse transmission point of the reference pulse oscillator, and this predetermined pulse transmission signal is
The signal may be changed to the signal transmitted at the end of one cycle operation of the packaging device 1.

That is, these other embodiments (wo) to
According to (f), the setting of the one-cycle operation of the push conveyor 22 and the detection of each time point can be performed independently of the packaging apparatus 1.

[Other technical ideas] The technical ideas (other than claims) that can be understood from the embodiments will be described. (A) The packaging device 1 for packaging the article 7 to be packaged with the film 11, the weighing device 4 for weighing the article 7 to be packaged carried into the packaging device 1, and the article 7 to be packaged weighed by the weighing device 4. Based on the completion of the weighing, the packaging device 1
The weighing device 4 is provided with a loading unit 2 for carrying the articles 7 to be packaged at the time of weighing. In the loading device 2, the loading device 2 is provided. A conveying member (pushing claw 28) that passes through the placing part 20 is provided, and the operation of conveying the article 7 to be packaged on the placing part 20 to the packaging device 1 is performed by the conveying member (pushing claw 28). In the weighing and packaging price machine, a placed article detecting means (first article detection sensor 32) for detecting that the article to be packaged 7 is placed on the placing section 20 of the weighing apparatus 4, and the weighing apparatus 4
Weighing completion detecting means for detecting the completion of weighing of the articles 7 to be packaged placed on the package (in the above-described embodiment, the weighing device 4 or the weighing value attaching device control device 36, in the other embodiment shown in FIG. 6C). Control device 6 or weighing device 4), loading operation end detection means (packaging device origin position detection sensor 15) for detecting the end of one cycle operation of the loading device 2, and placing the loading device 2 during one cycle operation. Article 7 to be packaged on part 20
Outside-mounting-portion transport detecting means (pulse transmitter 3 for the pushing conveyor) for detecting a time point B when the sheet is transported to the outside of the loading part 20.
4 and the like), and a pre-conveying time point detection means for detecting a time point C before the conveyance member (pushing claw 28) starts to convey the packaged article 7 on the placing portion 20 during one cycle operation in the carry-in device 2. (Pulse transmitter 34 for push-out conveyor, etc.), and the packaged article detection means 7 detects the end of the preceding one-cycle operation of the carrying device 2 by the loading operation end detection means. Is detected, the subsequent 1-cycle operation of the carry-in device 2 is continuously started from the preceding 1-cycle operation, and from the time B detected by the outside-section transport detection means during the preceding 1-cycle operation. A measurement completion waiting period T that can stand by until the time point C detected by the article conveyance pre-time point detection means during the subsequent one-cycle operation until the measurement completion detection means detects the measurement completion of the article 7 to be packaged. Weighing and packaging pricing machine, characterized in that it comprises a control unit (control unit 6) that.

(B) In the above (a), the packaging device 1
And the carry-in device 2 can be driven independently of each other, and the carry-in device 2 can be used when the weighing completion detecting means has not detected the completion of weighing by the time C detected by the before-article-transporting time detecting means. A weighing and packaging price machine characterized by comprising: a control means (control device 6) for stopping the operation and re-driving the carry-in device 2 when the completion of the weighing is detected after the stop.

(C) In Claim 1 or Claim 2, or in the above (A) or (B), the carry-in device 2 is a winding transport mechanism (pushing conveyor 22), and the transport member is the winding transport mechanism. The attached pushing member (the pushing claw 2
8), wherein the pushing member pushes the article 7 to be packaged and conveys it to the packaging device 1.

[0064]

According to the weighing and packaging pricing machine of the first aspect of the present invention, since the weighing completion waiting period (T) for the article to be packaged (7) becomes long, continuous one cycle operation is possible, and weighing is performed. It is possible to efficiently carry out the packing and pricing process and to smoothly pack the article to be packed (7).

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the article to be packaged (7) on the placing part (20) is packaged by the time point (C) before being conveyed. When the weighing of the article (7) is not completed, the carry-in device (2) is once stopped, and when the weighing is completed after that, the carry-in device (2) is re-driven, so that the packaged article (7) is ) Can be smoothly packaged.

According to the method of transporting articles to be packaged by the weighing and packaging price machine according to the third aspect of the present invention, the waiting period (T) for completion of weighing of the articles to be packaged (7) becomes long, so that the continuous 1
It is possible to perform a cycle operation, to efficiently perform the weighing and packaging and pricing process, and to smoothly package the article to be packaged (7).

[Brief description of drawings]

FIG. 1A is a schematic side view showing a weighing and packaging price machine according to the present embodiment, and FIG. 1B is a schematic front view of the same.

FIG. 2 is a partially enlarged cross-sectional view showing a lift, a carry-in device, and a weighing device of the packaging device as seen from the side surface side of FIG.

3 is a partially cutaway plan view of FIG. 2. FIG.

4 is a cross-sectional view seen from the front side of FIG.

FIG. 5 is an operation explanatory view according to the present embodiment.

FIG. 6A is a schematic side view of the weighing and packaging and pricing machine showing an electrical configuration, FIG. 6B is an electric block circuit diagram according to the present embodiment, and FIG. 6C is another embodiment. It is an electric block circuit diagram concerning.

FIG. 7 is a schematic timing chart showing a continuous cycle operation of the weighing and packaging price machine.

FIG. 8 is a schematic timing chart showing an operation in the weighing and packaging price machine when weighing is not completed in a weighing completion waiting period.

FIG. 9 is an operation explanatory view according to another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Packing device, 2 ... Carrying-in device, 4 ... Measuring device, 6 ... Control device (control means), 7 ... Article to be packaged, 20 ... Mounting part, 2
2 ... Pushing conveyor, 28 ... Pushing claw (conveying member), P, Q
… Standby position.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-9-124011 (JP, A) JP-A-9-207911 (JP, A) JP-A-63-96008 (JP, A) JP-B-63- 294 (JP, B2) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65B 57/00 B65B 61/26 B65B 11/20-11/54 B65B 35/24

Claims (3)

(57) [Claims] 1. A packaging device for packaging an article to be packaged with a film, a weighing device for weighing an article to be packaged which is carried into the packaging device, and an article to be packaged weighed by the weighing device based on the completion of weighing. And a carry-in device for carrying the packaged device to the packaging device. In the weighing device, there is provided a placing part for placing the article to be packaged at the time of weighing. In the carry-in device, the weighing device is operated by one cycle operation. In the weighing and packaging pricing machine, which is provided with a conveying member that passes through the placing part of the packaging device, and the conveying member performs an operation of conveying the article to be packaged on the placing part to the packaging device, When the subsequent article to be packaged is placed on the placing part of the weighing device by the end of the 1-cycle operation, the subsequent 1-cycle operation is started continuously to the preceding 1-cycle operation, The carry-in device From the time when the preceding article to be packaged is conveyed to the outside of the placing portion during the preceding one-cycle operation, the conveying member after starting the subsequent one-cycle operation by the carry-in device continues on the placing portion. A weighing and packaging price machine characterized by including a control means for setting a weighing completion waiting period for waiting the completion of the weighing of the subsequent packaged articles up to a point before starting to convey the packaged articles. . 2. The packaging device and the carry-in device can be driven independently of each other, and by the time before the conveying member starts to convey the succeeding article to be packaged on the placing part, on the placing part. When the weighing of the following packaged article is not completed, the carry-in device is stopped, and after that, when the measurement of the subsequent packaged article on the placing part is completed, the carry-in device is re-driven. The weighing and packing price machine according to claim 1, further comprising a control means. 3. Conveying of the packaged article of a weighing and packaging pricing machine, in which the packaged article is weighed by a weighing device, and the weighed packaged article is transported by a carry-in device to a packaging apparatus for packaging the packaged article by a film. In the method, when the succeeding article to be packaged is placed on the weighing device before the preceding one-cycle operation of the carry-in device for conveying the preceding article to be packaged is finished, the weighing of the succeeding article to be packaged is performed. Regardless of the completion of the above, the subsequent one-cycle operation of the carry-in device is continuously started from the preceding one-cycle operation, and the method of conveying a packaged article in a weighing and packaging pricing machine.