JPH0767923B2 - Horizontal bag-making filling and packaging machine - Google Patents

Description

Description: INDUSTRIAL APPLICABILITY The present invention has a length most suitable for the length of an individual package even if the package having different lengths is randomly supplied to the packaging machine. The present invention relates to a horizontal bag-making filling and packaging machine capable of feeding out a film and suitably performing an end seal in the middle of adjacent articles to be packaged.

2. Description of the Related Art For example, in a longitudinal direction of a tubular film in which a packaged film (hereinafter also referred to as "article") is sequentially supplied into a film formed into a tubular shape by passing through a bag making machine, and the packaged object is enclosed. A vertical center seal is applied to the overlapping surface of the edge, and lateral end seals and cuts are applied before and after sandwiching the tubular film to be packaged, so that the desired package can be manufactured continuously. The horizontal bag-making filling and packaging machine is widely known. In this case, the items to be packaged are sequentially supplied to the horizontal bag-making filling and packaging machine at regular intervals, and the tubular film in which the items to be packaged are inserted into the control unit through the operation panel in advance with the set length. Since end sealing / cutting is performed, it is always manufactured as a package of a fixed length.

Problems to be Solved by the Invention According to the above-mentioned method, if the same type of articles to be packaged and the individual length dimensions are the same, the film cutting length set in advance is set to the required length of packaging. The body can be manufactured sequentially. However, even if the product types are the same, if the lengths of the items to be packaged are not uniform, the cutting length of the film is set in advance according to the maximum length dimension of the items to be packaged expected in the order. I need to put it. In this case, with respect to the object to be packaged that does not reach the maximum size, the film is cut more than the required amount, so that there is a disadvantage that the amount of the film used is wasted over the entire packaging period.

If the length of the package is significantly different from the length of the package processed immediately before, change the setting of the film cutting length on the packaging machine side each time, and It is necessary to make adjustments so that end sealing and cutting are performed at the required positions. Further, when the end seal is applied, a complicated labor is required to control the phase and speed in the horizontal seal mechanism so that the film feeding speed and the rotational peripheral speed of the seal body in the horizontal seal mechanism become the same. It was

OBJECT OF THE INVENTION The present invention has been proposed in order to solve the problems inherent in the above-mentioned prior art, and even if items to be packaged having different lengths are randomly supplied to the packaging machine, the respective items to be packaged are provided. An object of the present invention is to provide a horizontal bag-making filling and packaging machine capable of controlling the film feed amount and the phase and speed of the horizontal sealing mechanism so that the film cutting length is always optimal depending on the length of the package.

Means for Solving the Problems In order to overcome the above problems and achieve the intended purpose, the present invention forms a film fed from a supply roll into a tubular shape with a bag-making device, and is packaged in the tubular film. Items are sequentially supplied, and the longitudinal end portion of the tubular film enclosing the packaged object is center-sealed, and the front and rear sides of the tubular film sandwiching the packaged object are end-sealed to continuously cover the packaged object. In a horizontal bag-making filling and packaging machine that is manufactured, a pool conveyor that conveys a large number of articles to be packaged and a conveyor that is arranged downstream of this pool conveyor and that is faster than the conveyance speed of the pool conveyor. The separation conveyor is driven at a speed and supplies the object to be packaged to the bag making machine at the same speed as the preset feeding speed of the film, and drives the pool conveyor and the separation conveyor. A motor, a motor that drives a feed mechanism that feeds the film, and a motor that drives a horizontal sealing mechanism that applies the end seal to a tubular film, and a downstream side of the separation conveyor and an upstream side of the bag-making machine. An article detection sensor which is provided and detects the length of the article to be packaged and the distance between the articles to be sequentially arrived, and a first storage block for inputting and storing the length of the article to be packaged detected by the article detection sensor. And a second storage block for inputting and storing the distance between the objects to be packaged detected by the article detection sensor, and data for the distance from the article detection sensor to the seal body to which the end seal is applied, and
On the basis of a data storage unit for inputting and storing data relating to the film feed speed fed from the supply roll, storage values from the first storage block and the second storage block, and data from the data storage unit. , The interval of the packaged goods sent to the tubular film is constant,
And, so that the end seal is provided in the middle of the adjacent packaged items, the film feeding amount for the packaging length suitable for the individual length of the packaged item and the sealing body according to the position of the packaged item And a motor control unit that gives a predetermined shift control command to the drive motor of the film feed mechanism and the drive motor of the lateral seal mechanism based on the data calculated by the calculation unit. It is characterized by that.

Examples Next, a horizontal bag-making filling and packaging machine according to the present invention will be described below with reference to the accompanying drawings with reference to the preferred examples.

(Regarding drive system of packaging machine) As shown in FIG. 1, the horizontal bag-making filling and packaging machine according to the embodiment conveys and feeds a large number of articles W to be packaged from the previous step in a randomly placed state. And a separation conveyor 12 which is disposed on the downstream side of the pool conveyor 10 and is driven at a transportation speed higher than the transportation speed of the conveyor 10, whereby a plurality of objects to be sequentially transferred to the separation conveyor 12 are provided. A required fixed interval is provided between the packages W.

The pool conveyor 10 and the separation conveyor 12 use separate motors M ₁ and M ₂ as drive sources independently of the drive systems (described later) of the film feeding mechanism 14 and the lateral sealing mechanism 16 of the packaging machine, Driven with a difference. A separation conveyor
The transporting speed of 12 may be set in advance to a value that matches the film feeding speed of the packaging machine, and it is not necessary to use a motor capable of shifting control. However, when there are many requests to change the processing speed by changing the film speed in the packaging machine, a motor that can shift-control the transfer speed of the separation conveyor 12 in accordance with the change of the film feed speed is used. There is a need to. Further, the pool conveyor 10 and the separation conveyor 12 may be connected to a mechanical speed changing means capable of providing the speed difference, and both conveyors may be driven by a single drive source.

On the downstream side of the separation conveyor 12 and on the upstream side of the bag-making machine 18 in the packaging machine, an article detection sensor S for detecting the length dimension of the article W to be packaged and the distance between the sequentially incoming articles W to be packaged, respectively. Is provided. The article detection sensor S is composed of, for example, a photoelectric sensor such as a photocell, is connected to a control circuit 30 described later, and the film feed mechanism 14 feeds the film according to the detection time of the article W to be packaged by the sensor S. In addition to controlling the amount, the lateral seal mechanism 16 is rotationally controlled in accordance with the length dimension of the articles W to be packaged and the distance between the articles W to be packaged.

In FIG. 1, the film 20 is delivered from the supply roll 24 by a pair of delivery rollers 22, passes through the bag making device 18 and is formed into a tubular shape, and the overlapping edges in the longitudinal direction face each other. The feed roller 25 clamps and feeds. Further, a seal roller 26 is arranged on the downstream side of the feed roller 25, and the roller 26 performs center sealing on the overlapping edge portion of the film 20. Therefore, the film feeding mechanism 14 of the present embodiment
Is composed of the repeating roller 22 and the feed roller 25, and the feed mechanism 14 is driven by the servomotor SM ₁ . In the illustrated example, the delivery roller 22 and the feed roller 25 are driven by a common servo motor SM ₁ , but as a modified example, the motor for driving the delivery roller 22 and the feed roller
The motor for driving the seal roller 25 and the seal roller 26 may be separately provided.

In addition, a horizontal sealing mechanism that applies an end seal to the tubular film 20
The horizontal seal mechanism 16 is driven by a servo motor SM _2. The horizontal seal mechanism 16 is driven by a servo motor SM ₂ . These servo motors SM ₁ ,
The SM ₂ includes rotary encoders RE ₁ and RE ₂ , respectively, and is feedback-controlled by the servo amplifiers A ₁ and A ₂ as shown in FIG.

(Regarding Control Circuit) FIG. 2 is a block diagram schematically showing a control circuit 30 that suitably performs various controls of the horizontal bag-making filling and packaging machine according to this embodiment. The control circuit 30 inputs a first storage block 32 for inputting and storing the length of the article W to be packaged, a second storage block 34 for inputting and storing the distance between the articles W to be packaged, and data on the film feed speed and the like. The data storage unit 36 to be stored, the film feeding amount for the packaging length suitable for the individual length of the article to be packaged W, and the rotational position of the seal body 28 according to the position of the article to be packaged W are calculated. The calculation unit 38 is basically provided. The detection signals from the article detection sensor S are input and stored in the first storage block 32 and the second storage block 34 via the interface 40, respectively.

For example, the length of each of the articles W to be packaged conveyed on the separation conveyor 12 is measured by the article detection sensor S, and the obtained detection value is stored in the first storage block 32. Further, in the articles W to be packaged that are conveyed through the separation conveyor 12 and successively pass through the detection surface of the article detection sensor S, the distance between the articles is detected according to the time interval of the article passage, and the detected value is It is stored in the second storage block 34.

The main body of the packaging machine is provided with a numerical input means 42 composed of an operation panel, and a keyboard provided on the main body provides data on the distance from the article detection sensor S to the sealing bodies 28, 28 of the lateral sealing mechanism 16 and data on the feeding speed of the film 20. In addition, numerical data such as the radius dimension of the seal body 28 and acceleration / deceleration values related to acceleration / deceleration control of the servo motors SM ₁ and SM ₂ are input and stored in the data storage unit 36 via the interface 44.

Further, the storage unit 38 receives the stored values from the first storage block 32 and the second storage block 34, and the data from the data storage unit 36 is also input to the arithmetic unit 38. Based on these input information, the computing unit 38 computes a film feeding amount suitable for the individual length of the article W to be wrapped, and, as will be described later with reference to FIG. The servo control unit 46 gives a control command to the servo motor SM ₁ via the servo amplifier A ₁ , whereby the film feeding mechanism 14 feeds the film at a predetermined speed.

Similarly, the arithmetic unit 38 is separated from each other in the transport direction in the tubular film 20 based on the stored values from the first storage block 32 and the second storage block 34 and the data from the data storage unit 36. In order to apply an end seal in the middle of the articles W to be packaged, the rotational positions of the seal bodies 28, 28 corresponding to the positions of the articles W to be packaged are calculated. Then, as will be described later with reference to FIG. 5, the servo control unit 46 is operated according to the value calculated by the calculation unit 38.
A control command is given to the servo motor SM ₂ via the servo amplifier A ₂ so that the horizontal seal mechanism 16 can seal the seal bodies 28, 28.
Control the peripheral speed of rotation.

In addition, on the downstream side of the packaging machine, a separation / selection device 50 for selecting the packaging object according to the type of the packaging object is provided, and a control circuit is provided.
It is preferable to provide an article separation control unit 48 for giving an operation command to the separation / selection device 50 to 30. In this case, the separation / selection device 50 is driven by the selection / separation command from the article separation control unit 48, and the objects W to be packaged having a plurality of types of lengths, which are packaged by the packaging machine, are sorted for each article length. It becomes possible to discharge.

Operation of Embodiment Next, the operation of the horizontal bag-making filling and packaging machine according to the embodiment will be described. Prior to the operation of the apparatus, the keyboard of the numerical value input means 42 is operated to interface the data concerning the distance from the article detection sensor S to the sealing bodies 28, 28 of the lateral sealing mechanism 16 and the data concerning the feeding speed of the film 20.
It is input and stored in the data storage unit 36 via 44. Also, depending on the model of the packaging machine, for example, the height dimension of the article W to be packaged,
Numerical data such as the radius dimension of the seal body 28 and other acceleration / deceleration values related to the acceleration / deceleration control of the servo motors SM ₁ and SM ₂ are also stored in the data storage unit 36 by the numerical value input means 42. In addition, the speed setting volume not shown
Give a speed command to A ₁ and A ₂ and set the speed of servo motors SM ₁ and SM ₂ .

When the horizontal bag-making filling and packaging machine is started in this state, the motors M ₁ and M ₂ and the servomotors SM ₁ and SM ₂ start rotating at the same time. The pool conveyor 10 is driven by the motor M ₁ ,
Items W to be packaged are sequentially conveyed on the conveyor 10 at irregular intervals. In this case, it is assumed that long articles and short articles are randomly mixed even if the lengths of the articles W to be packaged are not uniform. As described above, the separation conveyor 12 is driven so as to rotate at a speed higher than that of the pool conveyor 10 and at the same speed as the feeding speed of the film 20. In addition, the servo motor SM _{1 is used} to feed the film 14
Is driven to feed the film 20 from the supply roll 24, and the servo motor SM ₂ drives the lateral seal mechanism 16 to rotate the seal bodies 28, 28 at a non-constant speed. Further rotation signal from the rotary encoder RE _1, RE ₂ was attached to the servo motor SM _1, SM ₂ is inputted to the servo control unit 46 and the servo amplifier A _1, A _2.

(Regarding control of film feed) As shown in FIG. 1, the articles W to be packaged, which are sequentially transported on the pool conveyor 10 at irregular intervals, are transferred to the separation conveyor 12 which is driven at a higher speed than the conveyor 10. Then, the packaged object W is separated from the subsequent packaged object W located on the pool conveyor 10. The to-be-packaged object W conveyed on the separation conveyor 12 passes through the detection surface of the article detection sensor S, and the length dimension of the article is measured.
That is, the article detection sensor S starts measuring the length dimension by detecting the front end of the article W to be packaged, and ends the measurement by detecting the rear end of the article W.

The value detected by the sensor S is input and stored in the first storage block 32 and is also supplied to the calculation unit 38, where it is calculated together with the data relating to the feed speed of the film 20 stored in the data storage unit 36. Depending on the value calculated by this calculator 38,
The servo control unit 46 uses the servo amplifier A ₁ to
By giving a control command to the SM ₁ , the drive / acceleration or deceleration / stop of the film feeding mechanism 14 can be suitably performed. For example, FIG. 3 shows the relationship between the timing at which the article detection sensor S detects the article W to be packaged and the feed speed of the film 20,
Further, FIG. 4 shows each article W supplied to the tubular film 20.
2 schematically shows a state in which the interval B is constant. A symbol A in FIG. 3 indicates a delay time set by a timer provided in the packaging machine after the sensor S detects the rear end of the article W, and the delay time A is the article W shown in FIG.
Is a factor that determines the interval B between the item W and the article W.

As shown in FIG. 3, it is assumed that the articles W1, W2, W3, W4, W5 to be packaged are sequentially conveyed to the separation conveyor 12. When the sensor S detects the front edge of the packaged item W1, the detection input turns ON,
The servo control unit 46 gives a film feeding command to the servo motor SM ₁ in accordance with the calculated value of the calculated article 38. As a result, the servomotor SM ₁ starts increasing the speed of the film feeding mechanism 14 based on the input and stored acceleration / deceleration value, and the feeding speed of the film 20 reaches the set speed after the required time has elapsed. After the sensor S detects the trailing edge of the article W1, the film 20 is kept until the required delay time A set by the timer elapses.
Is fed at a set speed. In this Figure 3,
When the delay time A elapses, the sensor S detects the next packaged object.
The front end of W2 is detected and the detection input turns ON. Therefore, the film 20 is continuously fed at the set speed, and this state continues until the delay time A elapses after the sensor S detects the trailing edge of the article W2.

Next, when the delay time A elapses after the sensor S detects the rear end of the article W2, the succeeding article W3 to be packaged is not detected, and therefore the servo is performed according to the calculation value in the calculation unit 38. A control command is given from the control unit 46 to the servo motor SM ₁ , which causes the servo motor SM ₁ to start decelerating the film feeding mechanism 14. Even during this deceleration period, the succeeding article W3 is not detected, so that the servomotor SM ₁ and the film feeding mechanism 14 are stopped. When the front end of the third article W3 to be packaged is detected by the sensor S at this stop point, the servo control section 46 controls the servo motor SM ₁ to start driving and increase the speed according to the calculated value of the calculating section 38. By giving a command, the servo motor SM ₁ starts to accelerate the film feeding mechanism 14. Then, after the required time has elapsed, the feed speed of the film 20 reaches the set speed, and after the sensor S detects the trailing edge of the article W3, the film 20 is fed at the set speed until the delay time A elapses. To be

At the time when this delay time A has elapsed, the subsequent packaged product W4
Is not detected, the servo control unit 46 gives a deceleration command to the servo motor SM ₁ according to the calculation value of the calculation unit 38, whereby the servo motor SM ₁ causes the film feed mechanism 1 to move.
Start deceleration of 4. However, during the deceleration, when the sensor S detects the front end of the article W4, the servo control unit 46 gives a speed-up command to the servo motor SM ₁ according to the value calculated by the calculation unit 38. ₁ starts amplification of the film feeding mechanism 14. Then, after the required time has elapsed, the film 20 reaches the set speed, and after the sensor S detects the trailing edge of the article W4, the film 20 is fed at the set speed until the delay time A elapses. The ratio of deceleration / acceleration to the film 20 is set so that the deceleration coefficient and the acceleration coefficient are constant in order to feed the film 20 at a constant rate.

By controlling the feeding speed of the film 20 in this way, the supply intervals of the plurality of articles W to be inserted into the film 20 formed into a tubular shape are all equal as shown by the interval B in FIG. Then, the plurality of articles W to be packaged having the equal intervals B are conveyed to the horizontal sealing mechanism 16 together with the film 20.

(Regarding Control of Rotational Peripheral Speed of Sealing Body) Next, each of the articles W to be packaged that are sequentially conveyed on the separation conveyor 12 and pass through the detection surface of the article detection sensor S has an interval distance in the conveyance direction by the sensor S. The detected value is detected, and the detected value is input and stored in the second storage block 34. The length of the article to be packaged W stored in the first storage block 32, the distance between the articles to be packaged W stored in the second storage block 34, and the article detection sensor S stored in the data storage unit 36 to the seal body 28 Based on the distance data and the feed speed of the film 20, the calculation unit 39 calculates the rotational peripheral speed of the seal body 28. Since the article detection sensor S is provided on the upstream side of the bag making machine 18 as described above, the article W at the time when the sensor S detects it.
Are located upstream of, for example, two articles W that have arrived immediately before the lateral sealing mechanism 16.
Therefore, the control unit 30 handles the shift by two in the computer software to calculate when the article W to be packaged detected by the article detection sensor S actually arrives just before the horizontal sealing mechanism 16. Seal body calculated by section 38 first
A rotation speed of 28 will be applied.

That is, the servo control unit 46 according to the value calculated by the calculation unit 38.
Gives a control command to the servo motor SM _2, thereby increasing or decreasing speed or stop of the servo motor SM ₂ is made. As a result, the sealing bodies 28, 28 of the lateral sealing mechanism 16 are
The end seal / cutting can be performed between the articles W inserted in 0 and the article W, and the peripheral speed of rotation of the seal body at the time of meshing of the seal bodies can be synchronized with the feed speed of the film 20. For example, in FIG. 5, items W1, W2, W3, W4, W5
However, when it is inserted into the tubular film 20, the horizontal sealing mechanism 16
Be transported to. At this time, as an example, the length of the article W1 and the article W3 is the minimum packaging dimension l that can be packaged by the packaging machine, and the length of the article W2 is
It is assumed that “l + α”, which is larger than the minimum packaging size 1 by α. The length of the article W4 is sufficiently long, and is set to "1 + β", which is β larger than the minimum packaging size l. Further, although the seal bodies 28, 28 are generally subject to variable speed control, it is assumed in the present embodiment that they are rotated at a constant peripheral speed for convenience of explanation.

Now, when the article detection sensor S detects the presence of the article W1 immediately before the lateral seal mechanism 16 (as described above, the article W1
Position has been softly shifted), the calculation unit 38
In accordance with the calculated value in the
_A control command is given to ₂ , whereby the sealing bodies 28, 28 of the lateral sealing mechanism 16 are continuously rotated at a constant peripheral speed. This article W1 has the minimum packaging size 1 as described above,
Even after the sensor S detects the absence of the article W1, the seal bodies 28, 28 continue to rotate continuously until the article interval B elapses. In addition, the film 20 includes this article W1 and the next article W2.
Sealing and cutting by the sealing bodies 28, 28 are performed in the middle of the above.

Next, when the sensor S detects the article W2 having the length of "l + α", the seal bodies 28, 28 continue to rotate continuously, but at the time when the article W2 is sent by the minimum packaging dimension l, the calculation unit
From the servo control unit 46 to the servo motor
Outputs a deceleration command to the SM _2, thereby decelerating the seal body 28, 28 of the transverse sealing mechanism 16. And the remaining dimension α
At that time, the servo controller 46 gives a speed-up command to the servo motor SM ₂ in accordance with the value calculated by the calculator 38, and the sealing bodies 28, 28 of the lateral sealing mechanism 16 are again brought to a constant peripheral speed. It is made to stand up and continuously rotated until the article interval B has passed. Since the third article W3 has the same minimum packaging dimension 1 as the article W1, the seal bodies 28, 28 are kept until the article interval B elapses even after the sensor S detects the absence of the article W3.
Continues to rotate as it is.

However, the fourth article W4 has a large packaging size of "l + β". Therefore, only the smallest packaging size l
When W4 is sent, the servo control unit 46 gives a deceleration command to the servo motor SM ₂ in accordance with the value calculated by the calculation unit 38, whereby the seal bodies 28, 28 of the lateral seal mechanism 16 are decelerated. At this time, the remaining β is sufficiently large in dimension, so that the seal bodies 28, 28 stop on the side opposite to the meshing side after the deceleration. Then, when only the remaining β of the article W4 is sent, the servo control section 46 gives a command to the servo motor SM ₂ to start driving and increase the speed according to the calculation value in the calculation section 38, and the article interval B elapses. In the meantime, the seal bodies 28, 28 are raised to a constant peripheral speed, and the fifth article W5 is waited for sealing / cutting.

EFFECTS OF THE INVENTION As described above, according to the horizontal bag-making filling and packaging machine of the present invention, the length of each individual packaged object is increased while the packaged object is conveyed to the bag-making machine by the separation conveyor. In addition to detecting the size, it also detects the distance between multiple items to be packaged and temporarily stores that value in the memory block of the control circuit, so that only the amount of film most suitable for the length of the individual items to be packaged is detected. A drive motor for feeding the film is controlled so as to feed the film. Also, based on the length dimension of the articles to be packaged stored in each memory block, the distance between the articles to be packaged, the distance from the article detection sensor to the seal body, and the film feed speed, which have been input in advance, By controlling the drive motor of the seal mechanism, even if items to be packaged with different lengths are randomly supplied,
Continuous packaging can always be performed with a seal cutting dimension having a minimum required cutting length according to the object to be packaged. Therefore, the film is not wasted during the entire packaging period.

If the article detection sensor does not detect the packaged item,
The drive motors of the film feeding mechanism and the lateral sealing mechanism of the packaging machine are stopped, and the occurrence of empty bags can be effectively prevented. Moreover, when the servo motors for driving the film feed mechanism and the lateral seal mechanism are started / stopped, the timetable calculated based on the preset acceleration / deceleration values is used to accelerate / decelerate slowly. Even in this case, it is possible to prevent the positional deviation of the packaged item due to the vibration generated at the time of starting and stopping, and it is possible to always achieve stable packaging.

[Brief description of drawings]

FIG. 1 is a schematic side view of a horizontal bag-making filling and packaging machine according to the present invention, FIG. 2 is a block diagram of a control circuit used in the apparatus shown in FIG. 1, and FIG. FIG. 4 is a time chart showing the relationship between the timing of detecting an article to be packaged and the film feed speed, and FIG. 4 is a schematic view showing a state in which the interval of the article to be packaged supplied to the tubular film is constant. FIG. 5 is a time chart showing the relationship between the object to be packaged which has arrived immediately before the horizontal sealing mechanism, the rotational peripheral speed of the sealing body, and the moving amount of the film. 10 ... Pool conveyor, 12 ... Separation conveyor 14 ... Film feeding mechanism, 18 ... Bag making machine 16 ... Horizontal sealing mechanism, 20 ... Film 24 ... Supply roll, 28 ... Sealing body 30 ... Control circuit, 32 ... First memory block 34 … Second storage block, 36… Data storage 38… Calculator W… Package, S… Item detection sensor SM ₁ … Film feed mechanism drive motor SM ₁₂ … Horizontal seal mechanism drive motors A ₁ , A ₂ … Motor control means

Continuation of the front page (56) References JP-A-48-81690 (JP, A) JP-A-58-160220 (JP, A) Practical application Sho-60-50614 (JP, U)

Claims (3)

[Claims] 1. A film (20) fed from a supply roll (24) is formed into a tubular shape by a bag-making device (18), and an article to be packaged (W) is sequentially fed into the tubular film (20). The center edge of the longitudinal edge of the tubular film (20) enclosing the article to be packaged (W) and the end seal before and after sandwiching the article to be packaged (W) of the tubular film (20). In a horizontal bag-making filling and packaging machine for continuously producing packages, a pool conveyor (10) that conveys a large number of articles to be packaged (W) and a downstream side of the pool conveyor (10). And is driven at a transport speed higher than the transport speed of the pool conveyor (10), and the object to be packaged (W) is fed at the same speed as the preset feeding speed of the film (20). A separation conveyor (12) for supplying to the bag making machine (18), and the pool conveyor Performing (10) and a motor for driving the separating conveyor (12), said end seal to the motor (SM ₁₎ and tubular film (20) that drives the feed mechanism (14) providing a feed the the film (20) A motor (SM ₂ ) for driving the lateral sealing mechanism (16), and a bag making machine (1) on the downstream side of the separation conveyor (12).
8) an article detection sensor (S) which is provided on the upstream side and detects the length of the article to be packaged (W) and the distance between the articles to be packaged (W) that sequentially arrive, and the article detection sensor (S) First storage block (32) for inputting and storing the length of the article to be packaged (W) detected by
And a second storage block (3) for inputting and storing the distance between the objects to be packaged (W) detected by the article detection sensor (S).
4), data relating to the distance from the article detection sensor (S) to the seal body (28) for applying the end seal is input and stored, and the film (20) fed from the supply roll (24) is fed. A data storage section (36) for inputting and storing speed-related data, storage values from the first storage block (32) and the second storage block (34), and data from the data storage section (36) Based on the above, the interval between the articles to be packaged (W) fed into the tubular film (20) is made constant, and an end seal is provided in the middle of the articles to be packaged (W) adjacent to each other.
An arithmetic unit (38) for calculating a film feeding amount for a packaging length suitable for an individual length of the article to be packaged (W) and a rotational position of the seal body (28) corresponding to the position of the article to be packaged (W). If, on the basis of the data calculated by the calculation unit (38), said film feeding mechanism (14) of the driving motor (SM ₁₎ and a predetermined speed to the drive motor (SM ₂₎ of the transverse sealing mechanism (16) A horizontal bag-making filling and packaging machine characterized by comprising a motor control means (A ₁ , A ₂ ) for giving a control command. 2. When the article detection sensor (S) detects the front end of the article to be packaged (W) conveyed on the separation conveyor (12), the feeding of the film (20) is started and preset. The feed speed is increased by the acceleration value, the film feed speed is decelerated by a preset deceleration value when a required delay time elapses after the trailing edge of the article is detected, and the article detection is performed during the deceleration. The control unit for providing control for increasing the film feed speed by a preset speed-up value when the front end of the article (W) following the sensor (S) is detected. Horizontal bag-making filling and packaging machine. 3. An article detection sensor (S) is a separation conveyor (1
2) The interval of the article to be packaged (W) conveyed above is monitored, and if the length of the article to be packaged (W) that arrives immediately before the horizontal sealing mechanism (16) is larger than the minimum package size, the article to be packaged (W) is Package (W)
When the seal body (28) is transported by the minimum packaging size, the seal body (28) is decelerated by a preset deceleration value, and the packaged object (W) is sent by the remaining size less the minimum packaging size. 2. The horizontal bag-making filling and packaging machine according to claim 1, further comprising a control unit for controlling to accelerate the seal body (28) at a preset acceleration value.