JP2004059142A - Packaging system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging system that is capable of attaining adjustment of products supply comparable to but without changing the traversing position of products to a feeding conveyor in meeting the avoidance of contact between an end sealer and a packaging material at the time of suspension of a packaging apparatus due to the vacancy of products to be supplied. <P>SOLUTION: Based on a detecting signal from a products passage sensor 14 indicating vacancy of products to be supplied, a controller 7 suspends the packaging apparatus 1 and the feeding conveyor 13 of products transporting equipment 10 under the state of avoiding contact between the end sealer 4 and packaging films F. In meeting the stopping position of the end sealer 4, the operating speed of the feeding conveyor 13 is adjusted in advance so that the intervals between products A on the feeding conveyor 13 are adjusted, thus supply of the products A can be adjusted in accordance with the vacancy of the products A and the stopping position of the end sealer 4 though no change occurs in the traversing position 15 for the products A to the feeding conveyor 13. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is provided with a product transfer device for feeding a product, which is a package, to a packaging machine, a packaging machine for packaging the product with the packaging material by applying a seal to the packaging material to which the product has been sent, and a controller for controlling these. Related to packaging systems.
[0002]
[Prior art]
Conventionally, as seen in a horizontal pillow packaging machine, a packaging machine combined with a product supply device such as a belt conveyor forms a web-like packaging material into a tube shape by a center seal, and forms a tube-shaped package. The product is supplied inside the material, and the end seal that welds the tube-shaped packaging material at the front and rear positions of the product using a high-temperature end sealer that rotates and performs box motion, and puts the product in the bag We manufacture bag packages that are packaged in Japan. The operating speed of the infeed conveyor that feeds the product into the packaging material is variable according to the packaging processing speed, but the speed of the packaging machine, that is, the packaging material feeding speed, is used to maintain the cut dimensions of the package and the product spacing. And the one-to-one correspondence with the operating speed of the end sealer is maintained.
[0003]
In a packaging machine combined with such a product supply device, even if the interval between the supplied products spreads beyond a certain level, if the packaging machine continues to operate at a constant speed, it becomes possible to create empty bags that do not contain products. Become. In order to avoid such a situation, the operation of the packaging machine is temporarily stopped when the supply of the product is interrupted or when the interval between the products becomes more than a certain value. However, if the stop timing of the packaging machine is not taken into consideration, there is a possibility that the high-temperature end sealer will stop while contacting the packaging material. If the end sealer is in contact with the packaging material for a long period of time, the packaging material may be melted by heat and contaminate the packaging machine and the end sealer. It causes the operation rate to decrease. Also, if the product supply device is not stopped even if the packaging machine is stopped, the product at the crossing position (transfer position) between the conveyors will be fed by the running product supply device and the product interval will be reduced. The end sealer may bite the product when the packaging is restarted, deviating from the predetermined product pitch.
[0004]
As an example of a device for supplying a package to a packaging machine, Japanese Patent Application Laid-Open No. 7-81734 discloses a device for continuously supplying a package into a film in a desired relative positional relationship regardless of the dimensions of the package. Have been. According to this supply device, the first conveyor device capable of increasing and decelerating the intervals of the randomly conveyed packages at a constant interval, and the second conveyor arranged at the subsequent stage of the first conveyor device to supply the packages at a constant speed. A third conveyor device which temporarily stops following the operation of the conveyor device and the packaging machine is provided, and the second conveyor device and the third conveyor device are moved back and forth while maintaining their relative positions. The shuttle type conveyor mechanism is capable of adjusting the transport distance of the three-conveyor device. When the third conveyor device is temporarily stopped together with the packaging machine as in the case where the supply of the package is temporarily interrupted, the second conveyor device and the third conveyor device are connected so that the package does not exist over both the conveyor devices. By making the transition position with the conveyor device adjustable, and by keeping the package at a predetermined stop position on the third conveyor device, the end seal can be used to maintain the predetermined interval between products and the length of the cut dimension while maintaining the length of the packaging material. It is possible to make it open so that it does not contact with.
[0005]
Also, Japanese Patent Application Laid-Open No. 2000-211734 discloses a package transport / supply device capable of changing a crossover position according to a cut size. According to this package transporting / supplying device, the separation belt or the main body driving belt is moved between the separation belt that can be shifted with respect to the uppermost stream side transport belt and the main body driving belt that is operated in synchronization with the packaging machine. One or a plurality of transfer belts driven in synchronization with one of the transfer belts are provided. As in the case of the product supply device described in the above publication, when the supply of the package is temporarily interrupted, the transfer belt located on the separation belt side is synchronized with the separation belt, and the main body is driven. The position of the belt side is synchronized with the main unit drive belt, thereby switching the position separating the separation belt side and the main unit drive belt side. In addition, while maintaining the length of the cut dimension, the stop position of the end seal when the packaging machine is temporarily stopped together with the main body driving belt is set to the open position where the end seal does not contact the packaging material.
[0006]
If the packaging machine is paused, the end seal must be moved to the open position to avoid contact with the packaging material, and if the packaging machine is restarted, to maintain the pitch of the package at the crossover position, The distance between the seal position and the crossover position was set to a preset length, that is, an integral multiple of the cut dimension corresponding to the length of one package, and corresponded to an end seal for avoiding contact with the packaging material. It is necessary to set the length to the sum of the offset amount (for example, half of the cut dimension). In general, the dimensions such as packaging dimensions of the packaging machine are different for each type of product that is a package, and in the case of a packaging machine where the crossover position cannot be changed, the distance from the crossover position to the position of the end sealer is However, it does not always coincide with the addition length. Therefore, in the conventional packaging machine, as described above, the distance from the crossing position to the position of the end sealer is changed by the addition length by changing the crossing position of the product to the feeding conveyor according to the empty space of the product. It has been proposed to match. However, using a shuttle-type conveyor mechanism to change the crossover position has the problems of complicating the structure of the product supply device and increasing the manufacturing cost of the packaging machine. The crossover position of the shuttle-type conveyor mechanism can be adjusted steplessly, but it is necessary to manually or electrically change the crossover position for each cut dimension. When one or a plurality of transfer belts are provided between the separation belt and the main body drive belt, it is basically impossible to adjust the transfer steplessly and finely adjust the transfer position. However, it is necessary to increase the number of crossover belts, which also complicates the structure.
[0007]
[Problems to be solved by the invention]
Accordingly, when the end seal is stopped in an open state to avoid contact with the packaging material when the packaging machine is temporarily stopped due to a temporary stop of the supply of the product as a packaged product, the product conveyance device may be stopped. There is a problem to be solved in that the drive is controlled by software to enable the same product supply as when the crossover position is changed.
[0008]
An object of the present invention is to mechanically steplessly change a crossover position by responding with operation control without complicating the structure of a conventional product transport device with respect to the hardware configuration of the product transport device. An object of the present invention is to provide a packaging system capable of obtaining the same effect as the above.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, a packaging system according to the present invention includes a product conveyor having a transport conveyor in which a product passage sensor for detecting the passage of a product is arranged, and a feed conveyor connected at a crossover position on an unloading side thereof, A packaging machine having a packaging material feeding means for feeding a packaging material for wrapping a product fed at a predetermined interval by a feeding conveyor together with the product, and a sealer for sealing the packaging material to seal the packaging material wrapping the product; A controller for controlling the operation of the feeding conveyor, the packaging material feeding means, and the sealer, wherein the controller is configured to stop the sealing machine from contacting with the packaging material when the packaging machine stops. Setting the spacing between the products passed to the infeed conveyor according to the stop position set as That.
[0010]
The product conveyed by the product conveying device is transferred from the conveying conveyor to the infeed conveyor via a crossover position on the unloading side. If there is a large gap between products on the conveyor, due to interruption of product supply or the like, the product passage sensor detects a gap in the product, and the packaging machine is stopped so as not to manufacture empty bags. . In this packaging system, in order to stop the packaging machine in a state where the contact between the sealer and the packaging material is avoided, the packaging machine is preset to stop when the sealer stops at the stop position where the contact with the packaging material is avoided. Is done. Then, according to the stop position, the interval between the products transferred on the infeed conveyor is adjusted. Once this adjustment has been made, the product is transferred from the product transporter to the infeed conveyor with its spacing adjusted even when the packaging system is in a normal packaging operation. When the products whose intervals have been adjusted are fed from the infeed conveyor to the packaging machine, the products are returned to the intervals corresponding to the predetermined cut dimensions. Therefore, it is possible to stop the sealer at a position where the interference with the packaging material is avoided in response to the adjustment of the supply of the product, while keeping the position at which the product is transferred to the feeding conveyor unchanged.
[0011]
In this packaging system, the controller sets the operation speed of the feeding conveyor to the feeding speed of the packaging material in response to the stop position being before or after passing the seal engagement position with the packaging material. In contrast, by reducing or increasing the speed, the interval between the products delivered to the feeding conveyor can be set to a shortened or enlarged interval. If the stop position of the sealer is set to a position before the meshing position, the distance from the crossover position to the infeed conveyor to the tip of the packaging material is shortened, so that the sheet is sent from the transport conveyor to the infeed conveyor via the crossover position. For products, an adjustment is made to reduce the product interval by reducing the operating speed of the feed conveyor relative to the feed speed of the packaging material. Conversely, if the stop position of the sealer is set to a position advanced from the meshing position, the distance from the crossover position to the infeed conveyor to the leading end of the packaging material becomes longer. For products sent to the conveyor, adjustment is made to increase the product interval by increasing the operating speed of the infeed conveyor relative to the feed speed of the packaging material. The operation speed of the infeed conveyor is changed without changing the hardware configuration of the infeed conveyor by changing the operation speed of the infeed conveyor relative to the infeed speed of the packaging material, that is, by advancing or delaying the infeed of the product. By taking measures in the control, it is possible to easily shorten or enlarge the interval between products as a measure for vacant products.
[0012]
In this packaging system, the controller controls the height of the product, the shape of the sealer, the distance from the crossover position to the seal engagement position of the sealer, and the cutting of the package in which the product is packaged in the packaging material. The stop position of the sealer is calculated based on the size. That is, the controller calculates a stop position capable of avoiding contact with the packaging material during the operation cycle of the sealer when the packaging machine stops, and shortens or expands the stop position based on the stop position of the sealer. The spacing between products can be calculated. The position of the sealer is determined based on the shape and operation cycle of the sealer, the distance from the crossover position to the seal engagement position of the sealer, and the cut size of the bag package in which the product is packaged.
[0013]
In this packaging system, the packaging machine is a web-shaped packaging material formed into a tubular shape of the packaging material, and an end sealer that seals the sealer across the web-shaped packaging material at positions before and after the product. And a bag packaging machine. Examples of the bag packaging machine include a horizontal pillow packaging machine. By making the packaging material into a web-shaped packaging material formed into a tubular shape, the product is fed into the web-shaped packaging material formed into a tubular shape by an infeed conveyor. An end sealer as a sealer sandwiches a tubular web-like packaging material between products to seal the packaging material.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a packaging system according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic side view showing one embodiment of a packaging system according to the present invention, and FIG. 2 is an explanatory diagram for explaining the operation of product supply control by a controller in the packaging system shown in FIG.
[0015]
The packaging system shown in FIG. 1 includes a horizontal pillow type packaging machine 1 that packages a product A by three-way sealing a tubular packaging material. The packaging machine 1 includes a former 2 for forming a web-shaped packaging film F as a packaging material into a tube, a center sealer 3 for applying a center seal to the packaging film F formed into a tube by the former 2, and a center seal. And an end sealer 4 for sealing the applied tubular packaging film in the transverse direction. In the example shown in the figure, the end sealer 4 comprises a pair of upper and lower rotary heater blocks 4a, 4a which are heated to a high temperature by energizing a heating wire, and the heater blocks 4a, 4a seal and bite a tubular packaging film F. Welding by pinching at position 5. The product A fed into the tubular packaging film F at a certain interval D advances with the packaging film F, and is sealed in the packaging bag B by sealing the packaging film F with the end sealer 4 before and after the product A. And the bag package P is manufactured.
[0016]
The product conveying device 10 that supplies the product A to the packaging machine 1 includes a first conveyor 11, a second conveyor 12, and a second conveyor 12, each of which is a belt conveyor, in order from the upstream side of the flow of the product A, and the crossover position 15. It consists of a feed conveyor 13 connected via A product passage sensor 14 that detects the passage of the product A is disposed between the first conveyor 11 and the second conveyor 12. The first conveyor 11 is a variable supply conveyor driven by a variable speed first drive motor M1, and the second conveyor 12 is driven at a constant speed by a second drive motor M2 in accordance with a packaging speed. It is. The first conveyor 11 is normally operated at a lower speed than the second conveyor 12, and even when the products A are in contact with each other on the first conveyor 11 to which the products A are irregularly supplied, the driving speed is increased. When the product A is transferred to the second conveyor 12 having a higher speed, the product A is surely separated.
[0017]
The feed conveyor 13 is driven by a servo motor M3. When the packaging system is operated in the mode for adjusting the stop position of the end sealer 4 according to the present invention, the servo motor M3 adjusts the interval between the products A, as described later. Are controlled at different set speeds. A feed roller 8 for feeding the web-shaped packaging film and a paper feed roller 9 for feeding the mating edge of the tubular packaging film between them are packaging material feeding means for feeding the packaging film F. It is driven by a feed drive motor M4. Further, the end sealer 4 is driven by an end seal drive motor M5. In the illustrated example, the roller conveyor 6 driven in synchronization with the feeding speed of the packaging film F is connected between the feeding conveyor 13 and the tubular film F as the packaging material. In 6, the interval between the products A is not adjusted.
[0018]
By detecting the passage (time) of the product A from the first conveyor 11 to the second conveyor 12 with the product passage sensor 14, the interval between the products A is measured. The controller 7 controls the driving of the drive motors M <b> 1 to M <b> 5 based on the detection signal input from the product passage sensor 14 to control the product supply and the packaging machine 1. That is, if the interval between the products A matches the predetermined interval, the second conveyor 12 and the packaging machine 1 perform a normal operation. If the interval between the products A is less than the predetermined interval, the second conveyor 12 temporarily stops or decelerates to adjust the interval between the products to match the predetermined interval. If the interval between the products A is longer than the predetermined interval, the packaging machine 1 (specifically, the film feed drive motor M4 and the end seal drive motor M5) and the feed conveyor 13 following the packing machine 1 are adjusted in accordance with the interval. An interval adjustment for returning to a predetermined interval by pause or deceleration is performed. When the products A of the infeed conveyor 13 are transferred from the second conveyor 12 via the crossover position 15 by this space adjustment, the products A are supplied in a state of being arranged at predetermined regular intervals. The feed conveyor 13 may temporarily stop or decelerate following the packaging machine 1 during operation.
[0019]
Prior to packaging, the controller 7 of the packaging system stores data necessary to control the packaging machine 1 in response to empty product, that is, the height H and the length L of the product A, and the product A is packaged. The cut dimension L1 of the bag package P, the rotation radius R of the end sealer 4, the distance L2 from the crossover position 15 between the second conveyor 12 and the feed conveyor 13 to the seal engagement position 5 of the end sealer 4, and the like are taken in. In. If there is a large vacancy in the supply of the product A, the packaging machine 1 is stopped in order to prevent empty bags from being formed and the supply of the product A is restarted, but the end sealer 4 comes into contact with the packaging film F at the stop position. The stop position of the end sealer 4 is determined in advance based on the data so as not to stop in the state.
[0020]
The adjustment of the interval between the products A is shortened or expanded depending on whether the stop position of the end sealer 4 is before or after the seal mesh position 5 with the packaging film F is passed. It is done by that. FIG. 2 is an explanatory diagram showing the product supply control when the end sealer stops at a stop position before the seal engagement position in accordance with a product availability in the packaging system shown in FIG. FIG. 2A shows that in an operation state in which the interval between the products A is not adjusted, the end sealer 4 is welded across the packaging film F at the meshing position 5, and the bag package P just manufactured is cut off. It shows the state where it was turned on. The feeding speed of the feeding conveyor 13 matches the feeding speed of the packaging film F.
[0021]
In FIG. 1, after the last product A is detected, if the product passing sensor 14 detects that the product A has not arrived for a predetermined period of time or more and the product A is empty, the last product A is transferred to the infeed conveyor 13. When loaded, the packaging system is shut down. The end sealer 4 is stopped at a stop position on the near side of the seal engagement position 5 to avoid contact with the packaging film F, as shown in FIG. In this case, the amount of movement of the packaging film F is smaller than in the case of FIG. 2A, and the amount of movement of the product A that moves in synchronization with the packaging film F is indicated by “−ΔL”. And so on. Assuming that the feeding conveyor 13 is operated as usual, the interval between the product A already transferred to the packaging machine 1 and the product A transferred to the feeding conveyor 13 becomes too sharp and very narrow. Therefore, in accordance with the adjustment of the stop position of the end sealer 4, the interval between the products A transferred from the second conveyor 12 to the infeed conveyor 13 via the crossover position 15 does not adjust the stop position of the end sealer 4. In this case, the distances D1 and D2 (D1 <D2) are shorter than the distances D in the case of.
[0022]
In order to shorten the interval D between the products A, the controller 7 sets the operating speed of the feeding conveyor 13 to a speed that is always reduced (speed multiplied by a fixed ratio of less than 1) with respect to the feeding speed of the packaging film F. are doing. By reducing the operation speed of the feeding conveyor 13 with respect to the feeding speed of the packaging film F, the interval between the products A sequentially transferred to the feeding conveyor 13 can be reduced to the interval D1. In this way, the operation control (software) of the feed conveyor 13 is to reduce the driving speed of the feed conveyor 13 with respect to the feed speed of the film F without changing the hardware configuration such as the crossing position of the feed conveyor 13. With the measures described above, measures for the empty space of the product A and the stop position of the end seal 4 can be easily performed. When the product A whose interval has been adjusted is sent from the infeed conveyor 13 to the packaging machine 1, the product A is sent back with the interval of the product A returned to the predetermined interval D. When the product passage sensor 14 detects that the supply of the product A by the first conveyor 11 and the second conveyor 12 has been restarted, the packaging is immediately stopped from the stopped state at the timing when the product comes to just before the infeed conveyor 13. Will be resumed. Also in the case of resuming the operation, the operation of the infeed conveyor 13 is performed while maintaining a state where the speed is reduced at a constant rate with respect to the operation speed of the packaging machine 1, and is returned to the predetermined interval D when being sent to the packaging machine 1. It is. Therefore, the packaging machine 1 can continue and reopen the packaging of the product A according to the original cut dimensions without making an empty bag.
[0023]
FIG. 3 is an explanatory diagram showing product supply control when the end sealer is stopped at a stop position after the seal engagement position in accordance with the product availability in the packaging system shown in FIG. FIG. 3A shows an operation state in which the distance between the products A is not adjusted, similarly to FIG. In this example, when the empty space of the product A is detected and the packaging machine 1 stops, the stop position of the end sealer 4 for avoiding the contact between the end sealer 4 and the film F is as shown in FIG. In addition, it is set to the stop position advanced from the position where the seal meshes with the packaging film F. In this case, the moving amount of the packaging film F is increased by the forward rotation of the paper feed roller 9 or the like in accordance with the advance amount of the end sealer 4, and thus is greater than the case shown in FIG. The movement amount of the product A that moves in synchronization with F also increases as indicated by ΔL. Assuming that the infeed conveyor 13 is operated as usual, the interval between the product A already transferred to the packaging machine 1 and the product A newly transferred to the infeed conveyor 13 becomes too sharp and very wide. . Therefore, in accordance with the adjustment of the stop position of the end sealer 4, the interval between the products A transferred from the second conveyor 12 via the crossover position 15 to the infeed conveyor 13 does not adjust the stop position of the end sealer 4. Is enlarged to an interval D3 longer than the interval D in the case of.
[0024]
In order to increase the interval D between the products A, similarly to the case of shortening the interval D shown in FIG. 2, without changing the hardware configuration of the infeed conveyor 13, the controller 7 changes the operation speed of the infeed conveyor 13 to the packaging film F. The feed speed is always set to a speed increased (speed multiplied by a fixed ratio exceeding 1). By increasing the operation speed of the feeding conveyor 13 with respect to the feeding speed of the packaging film F, the interval between the products A sequentially transferred to the feeding conveyor 13 can be increased to the interval D3. In this case as well, measures against software vacancies and the stop position of the end seal 4 by reducing the drive speed of the feed conveyor 13 by software without changing the hardware configuration such as the crossing position of the feed conveyor 13. Can be done easily. When the product A whose interval has been adjusted is sent from the infeed conveyor 13 to the packaging machine 1, the interval between the products A is reduced to a predetermined interval D. Regarding the resumption of the packaging in response to the resumption of the supply of the product A, as in the previous embodiment, the operation of the feeding conveyor 13 is performed while maintaining the speed increased at a constant rate with respect to the operation speed of the packaging machine 1. When it is sent to the packaging machine 1, it is returned to the predetermined interval D. Therefore, the packaging machine 1 can continue and reopen the packaging of the product A according to the original cut dimensions without making an empty bag.
[0025]
In the above embodiment, the end sealer 4 is a rotary heat sealer. Alternatively, the end sealer 4 may be a sealer that performs box motion, or may be provided with a cutter that cuts and separates each bag package P together with a seal. it can. Furthermore, the packaging machine 1 has been described using a horizontal pillow packaging machine as an example. However, an inverse pillow packaging machine that supplies a web-shaped packaging material from below and seals the center on the upper side, and a web-shaped packaging material. The present invention can also be applied to a draw-forming packaging machine in which a recess for accommodating a product is formed by drawing, and the recess containing the product is covered with another packaging material and sealed. Although the infeed conveyor 13 is shown as having a length that allows only two products to be placed, it is clear that the length may be such that three or more products can be placed at the same time.
[0026]
【The invention's effect】
The present invention provides a product conveyor having a transport conveyor on which a product passage sensor for detecting the passage of a product is disposed, and a feed conveyor connected at a crossover position on the unloading side, and a product fed at a predetermined interval by the feed conveyor. Packaging material feeding means for sending a packaging material for wrapping the product together with the product, a packaging machine having a sealer for sealing the packaging material to seal the packaging material for the product, the feeding conveyor, and the packaging material feeding means And a controller for controlling the operation of the sealer, wherein the controller is configured to control the operation of the sealer in advance in accordance with a stop position of an end sealer for avoiding contact between the sealer and the packaging material in a stopped state of the packaging machine. Adjust the spacing between products passed to. Therefore, the structure of the transport conveyor, the infeed conveyor, and the like does not need to be changed from the conventional transport conveyor or the packaging machine, so that the structure is not complicated. In addition, since it is possible to respond to software as operation control, it is possible to change the crossover position steplessly without adopting a complicated structure that allows the crossover position to be changed like a shuttle conveyor or a split conveyor. Similar effects can be obtained. Therefore, a packaging system that avoids a situation such as melting of the packaging material caused by the hot end sealer coming into contact with the packaging material at the seal engagement position can be realized with a simple configuration and at low cost. Can be realized.
[Brief description of the drawings]
FIG. 1 is a schematic side view showing one embodiment of a packaging system according to the present invention.
FIG. 2 is an explanatory diagram showing product supply control when the end sealer stops in front of a seal engagement position according to a product vacancy in the packaging system shown in FIG. 1;
FIG. 3 is an explanatory diagram showing a product supply control when the end sealer stops after a seal engagement position according to a product empty of the packaging system shown in FIG. 1;
[Explanation of symbols]
1 Packaging machine 2 Former
3 Center sealer 4 End sealer
5 Seal meshing position 6 Roller conveyor
7 controller 8 feed roller (packaging material feeding means)
9 Paper feed roller (packaging material feed means)
10 Product supply device 11 First conveyor
12 Second conveyor 13 Infeed conveyor
14 Product passage sensor 15 Crossover position
A Product
D Predetermined spacing between products
F Packaging film

Claims (4)

A product conveyor having a conveyor on which a product passage sensor for detecting the passage of a product is disposed, and a feed conveyor connected at a crossover position on the unloading side thereof; A packaging machine having packaging material feeding means for feeding a material together with the product and a sealer for sealing the packaging material to seal the packaging material wrapping the product, and operation of the feeding conveyor, the packaging material feeding means and the sealer A controller for controlling the feeding conveyor according to a stop position set as a position where the sealer stops while avoiding contact with the packaging material when the packaging machine stops. A packaging system comprising setting a spacing between the products passed to the packaging system. The controller reduces or increases the operation speed of the feeding conveyor with respect to the feeding speed of the packaging material depending on whether the stop position is before or after passing the seal engagement position with the packaging material. The packaging system according to claim 1, further comprising setting the distance between the products to be transferred to the infeed conveyor to a shortened or enlarged interval by increasing the speed. The controller is based on a height of the product, a shape of the sealer, a distance from the crossover position to a seal engagement position of the sealer, and a cut dimension of a package in which the product is packaged in the packaging material. The packaging system according to claim 1, comprising calculating the stop position of the sealer. The packaging machine is a bag packaging machine in which the packaging material is a web-shaped packaging material formed into a tube shape, and the sealer is an end sealer that seals across the web-shaped packaging material at positions before and after the product. The packaging system according to any one of claims 1 to 3, comprising:

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