JP2009227288A - Vertical bag-making and packaging system, and its timing controlling method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical bag-making and packaging system capable of objectively and optimally controlling the adjustment between the drop timing of a product from a weight measuring machine and the timing of the packaging operation such as the horizontal sealing of the vertical bag-making and packaging apparatus, and its timing controlling method. <P>SOLUTION: In the vertical bag-making and packaging apparatus, the drop of the product A to be packaged is not detected immediately after the discharge of the product from a weight measuring machine 11, but immediately close to an upper part of a horizontal sealing unit 8, and the drop timing of the product A with respect to the operation timing of the horizontal sealing unit 8 is adjusted based on the detection. Even when there is dispersion in the time required for the product A to drop in a filling cylinder 3, the effect of the dispersion of the time on the operation timing of the horizontal sealing unit 8 can be avoided. Further, by knowing the drop timing of the product A, the discharge timing by the weight measuring machine 11 to discharge the product A can be corrected, and the discharge of the product A and the operation timing of the horizontal sealing unit 8 can be determined in an optimum state. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vertical bag-making packaging system that controls the timing of detecting the input of a product to be packaged with respect to the operation timing of a lateral seal portion that laterally seals a cylindrical packaging material, and a timing control method thereof.

  In general, bagging and packaging of products such as confectionery and processed foods is performed by measuring a product to a predetermined weight (or quantity) and receiving the product discharged and dropped from the weighing machine with a cylindrical packaging material. This is performed using a vertical bag making and packaging apparatus for packaging. The vertical bag making and packaging device is a device for bagging products, and mainly supplies a bag making and packaging mechanism unit for bagging products, and a packaging material serving as a packaging bag to the bag making and packaging mechanism unit. A packaging material supply unit, and a packaging control device that controls the bag making and packaging mechanism unit and the packaging material supply unit are provided.

  The bag making and packaging mechanism of the vertical bag making and packaging apparatus usually includes a former that curves the web-like packaging material into a substantially cylindrical shape, and guides the packaging material curved and formed by the former on the outer peripheral surface, and an internal space. A filling cylinder into which a product to be packaged is charged and dropped, and a vertical seal part that heat seals both side edges of the packaging material that is placed outside the filling cylinder and is molded into a cylindrical packaging material, Lateral seal that forms the top seal of the packaging bag and the bottom seal of the next packaging bag, which were produced in advance by heat-sealing the cylindrical packaging material containing the dropped product in the filling cylinder. Department. A cutter for separating the packaging bag can be incorporated in the horizontal seal portion.

  The packaging material supply unit of the vertical bag making and packaging apparatus usually includes a packaging material feeding unit that supplies web-shaped packaging material fed from a roll formed by winding a web-shaped packaging material to the former, and an outer side of the filling cylinder. A belt-shaped packaging material feeding unit that is arranged and feeds the packaging material with the packaging material sandwiched between the filling cylinder and the filling cylinder. Further, the horizontal seal portion may also serve as the packaging material feeding portion by performing an operation of moving in the feeding direction of the packaging material together with an operation of sandwiching the packaging material like a box motion.

  The packaging control device controls the vertical seal portion and the horizontal seal portion of the bag making and packaging mechanism unit, and each packaging material feeding unit of the packaging material supply unit, and also controls the weighing machine as the product supply device. A drop request signal for requesting product drop is output to the device (product supply control device).

  A transparent connecting cylinder is provided above the filling cylinder, that is, between the collecting discharge section extending from the weighing machine into the former and the filling cylinder. In relation to the connection tube portion, a light-emission-type photoelectric sensor for detecting a product falling in the connection tube portion is provided. During the operation of the packaging device, the photoelectric sensor constantly controls the packaging according to whether the product falling from the collecting and discharging part of the weighing machine through the connecting cylinder part into the filling cylinder is blocking the photoelectric sensor. Sent to the device. Various timing adjustments in the vertical bag making and packaging device are based on the data provided by the bag making and packaging mechanism and the packaging control device, the state of product biting by the horizontal seal, or visual inspection of the product falling on the horizontal seal, Relying on sound.

  In such a vertical bag making and packaging apparatus, timing control is performed so that sealing by the horizontal seal portion is started after a predetermined time from detecting the discharge of the product from the weighing machine (Patent Document 1 and 2). The timing for discharging and dropping the product from the hopper is adjusted accurately by manually moving the timing forward and backward with respect to the operation timing of the packaging material feed section and horizontal seal section in the vertical bag making and packaging machine. is doing.

  However, when the product to be dropped is detected above the filling cylinder in the vertical bag making filling and packaging device, the product to be packaged may be a loose article whose size, shape, or individual posture is not necessarily uniform. is there. In such a case, there is a variation in the time required for the article to fall inside the filling cylinder, and the manual adjustment described above cannot avoid variations in the adjustment timing due to differences in the ability and sense of the operator, and is not necessarily optimally adjusted. It cannot be said that it has been done. Depending on the nature of the article, there may be changes in the fall situation, and there may be cases where manual adjustment is required. For example, in the case of potato chips, the size and shape of the potato varies depending on the season and the supplier, and the fall situation varies. In addition, the properties of the article may change depending on the manufacturing time and the atmospheric temperature at the time of manufacturing, and this change in properties affects the air resistance when dropped and the contact resistance with the filling cylinder.

As described above, it is difficult to accurately adjust the detection timing in discharging and dropping the product from the weighing machine and the packaging timing such as the sealing operation by the lateral seal portion. In particular, the faster the packaging speed and the shorter the time that can be spent per unit packaging, the more difficult it is to accurately adjust these timings, and there is a possibility that the product may be caught in the lateral seal portion. As a product supply device, instead of a weighing machine, a fixed amount (weight, volume, or number) of products for each packaging unit is transported, and a bucket conveyor for feeding the products into a filling cylinder from the transport end. There is also a device like this.
JP-A-10-77002 JP 2003-11927 A

  Therefore, there is a problem to be solved in that accurate adjustment of the charging timing at which the product from the product supply device is charged into the filling cylinder can be obtained with respect to the timing of the packaging operation of the vertical bag making and packaging device. is there.

  The object of the present invention is to depend on the personal ability and sense of the worker to adjust the timing of product input from the product supply device with respect to the timing of the packaging operation such as the horizontal sealing operation of the vertical bag making and packaging device. It is an object of the present invention to provide a vertical bag making and packaging apparatus that can be objectively and optimally controlled and a timing control method thereof.

  In order to solve the above problems, a timing control method in a vertical bag making and packaging system according to the present invention includes a product supply device that supplies a product to be packaged for each packaging unit, and the product supplied by the product supply device. A filling cylinder to be placed inside, and a cylindrical packaging material guided and traveled to the outer periphery of the filling cylinder in a lateral direction, and a package containing the product formed in advance and supplied through the filling cylinder In a vertical bag making and packaging system including a vertical bag making and packaging apparatus having a horizontal seal portion that forms an upper end portion of a bag and a bottom portion of a packaging bag to be subsequently formed, the fall of the product is caused to fall above the horizontal seal portion. Detecting the latest and adjusting the timing of loading the product from the product supply mechanism to the filling cylinder with respect to the operation timing of the lateral seal portion based on the detection of the product falling Et al made.

  The vertical bag making and packaging system with a weighing machine according to the present invention includes a product supply device for supplying a product to be packaged for each packaging unit, and a filling cylinder into which the product supplied by the product supply device is placed. The cylindrical packaging material guided and traveled to the outer periphery of the filling cylinder is heat-sealed in the lateral direction, and is formed subsequent to the upper end portion of the packaging bag in which the product supplied through the filling cylinder is accommodated in advance. A vertical bag making and packaging system comprising: a horizontal seal portion that forms a bottom portion of the packaging bag; and a vertical bag making and packaging device having a packaging control device that controls a sealing operation of the horizontal seal portion. The apparatus has a product supply control device for controlling the charging timing of the product, and a product drop sensor for detecting the fall of the product is disposed immediately above the lateral seal portion, and the packaging The control device instructs the product supply control device of the product discharge timing adjusted with respect to the operation timing of the lateral seal portion, based on the product drop timing detected by the product drop sensor. Consists of.

  According to the timing control in this vertical bag making and packaging system, if the product detection timing in the immediate vicinity of the upper side of the horizontal seal portion is earlier, the product input timing in the subsequent product supply device is adjusted later, and the product detection timing is adjusted. If it is late, the product input timing in the subsequent product supply apparatus is adjusted early. In this way, the product drop to be packaged is not detected immediately after the product is supplied from the product supply device, but is detected that the product has actually fallen to the immediate upper side of the horizontal seal portion. In response to the detection, a timing adjusted with respect to the operation timing of the lateral seal portion is commanded as a subsequent product introduction timing in the product supply apparatus. Therefore, even when there is a variation in the time required for the product to drop in the filling cylinder, it is possible to avoid that the product dropping timing affects the operation timing of the horizontal seal portion. As a vertical bag making and packaging system, the packaging control device instructs the product supply control device to set the product discharge timing adjusted with respect to the operation timing of the horizontal seal portion according to the product fall detection timing. The influence on the operation timing of the horizontal seal portion due to the variation of the product drop can be avoided.

  In timing control in this vertical bag making and packaging system, the product drop timing detected by the product drop sensor is compared with the reference drop timing set for the operation timing of the horizontal seal part to determine the timing deviation, and the product discharge The timing can be adjusted based on the timing deviation. That is, a reference drop timing set for the operation timing of the horizontal seal portion is determined, and the product fall timing detected by the product drop sensor is compared with this reference drop timing to obtain a timing deviation. By adjusting the product discharge timing based on the timing deviation, the subsequent product drop timing can be matched with the reference drop timing. Therefore, since the time when the product actually falls to the upper side of the horizontal sealer is controlled so as to match the reference drop timing, the control for preventing the horizontal seal portion from biting the product can be easily performed by the timing control. it can.

  In the timing control in the vertical bag making and packaging system, a shutter for receiving a falling product is disposed in the vicinity of the upper side of the horizontal seal portion so as to be openable and closable, and a load cell or a touch sensor is disposed on the shutter. The sensor can detect the fall of the product in the immediate vicinity of the upper side of the lateral seal portion. Alternatively, in order to detect the fall of the product, a photoelectric sensor or an area sensor can be disposed immediately above the shutter. In the vertical bag making and packaging system, a shutter for receiving a falling product is provided in the vicinity of the upper side of the horizontal seal portion so as to be openable and closable. Therefore, a load cell or a touch sensor is arranged using this shutter, or just above the shutter. By disposing the photoelectric sensor or the area sensor, it is possible to detect that the product has actually dropped down to the upper side of the lateral seal portion while avoiding the complexity of the structure. The product that has dropped near the upper side of the horizontal seal portion is detected by a photoelectric sensor or an area sensor, or collides with a shutter, that is, a load cell or a touch sensor. In the case of a load cell or a touch sensor, it can be seen that a load of a predetermined level or more has been applied, so that the fall of the product can be detected.

  In the timing control in this vertical bag making and packaging system, the presence or absence of a product is detected by a sensor installed at a position above the top end position of the product where the product has successfully dropped, and the presence of the product is detected by the sensor. Accordingly, the next operation of the horizontal seal portion and the next discharge of the product from the product supply device can be stopped. The presence or absence of the product is detected by an auxiliary sensor installed at a position higher than the top end position of the product when the product has been normally dropped. Therefore, when the product drop sensor has finished detecting the presence of the product and the auxiliary sensor has detected that the product is not present, the product drop in the packaging unit may have been completed. As can be seen, when the auxiliary sensor detects the presence of the product, the side seal part may bite the product in the next sealing operation. It is preferable to stop the next product discharge.

  As described above, the horizontal seal control in the vertical bag making filling and packaging system according to the present invention detects the drop timing of the product in the immediate vicinity of the upper side of the horizontal seal portion. It is possible to objectively and optimally control the adjustment with the timing of the packaging operation such as the horizontal seal of the bag making and packaging apparatus without depending on the personal ability and sense of the worker. In addition, the vertical bag making and packaging device is equipped with not only the horizontal seal part but also a paper feed mechanism and vertical seal part for feeding the packaging material, and the operation of other mechanisms is determined based on the operation of the horizontal seal part. Therefore, if the timing of the horizontal seal portion is changed, the timing of other mechanisms must be adjusted. In the present invention, since the product input timing from the product supply device is adjusted with respect to the operation timing of the horizontal seal by the horizontal seal portion, the operation timing of other mechanisms is not changed, and the timing in the product supply device is changed. Only the adjustment is necessary, and the timing adjustment work is simple. Furthermore, it is possible to eliminate the possibility that an article at the end of the fall will be bitten by the lateral seal portion, and to set the time from the detection of the product fall to the start of the lateral seal as short as possible. be able to.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a vertical bag making and packaging system and a timing control method therefor according to the present invention will be described based on the attached drawings.

  FIG. 1 is a schematic view showing an embodiment of a vertical bag making and packaging system. The outline of the packaging control apparatus for controlling each part of the packaging machine including the horizontal sealer is shown in a block diagram. A vertical bag making and packaging apparatus (hereinafter abbreviated as “packaging apparatus”) 1 is a known one, and is a packaging material that is drawn out from a film roll and formed into a curved shape by a former 2 and a vertical sealer (not shown). However, it travels outside the filling cylinder 3 while being guided by the outer peripheral surface of the filling cylinder 3. The packaging material is fed on the filling cylinder 3 by the packaging material feeding section 4 disposed on the side of the filling cylinder 3. In this example, the packaging material feeding section 4 is composed of a driving pulley 5 driven by a servo motor (not shown), driven pulleys 6 and 6, and a paper feeding belt 7 wound around these pulleys. The sheet is pulled down by the paper feeding belt 7. In addition, when shape | molding a web-shaped packaging material to a cylindrical packaging material, the vertical seal | sticker part (not shown) which seals the both-sides edge part of the web-shaped packaging material which drive | works the outer side of the filling cylinder 3 is provided. ing.

  A horizontal seal portion 8 is disposed below the filling cylinder 3. The lateral seal portion 8 is configured such that the lateral seal blocks 8a and 8b sandwich the cylindrical packaging material Ft in the transverse direction at a predetermined timing, and heat is applied to the sandwiched cylindrical packaging material Ft so that the inner surfaces of the cylindrical packaging material Ft To form a lateral seal of the bag package P in which the product A is accommodated. The horizontal seal portion 8 is driven by a servo motor (not shown). A cutter 9 is incorporated in the horizontal seal portion 8 so that the manufactured bag packaging body P can be cut and separated from the subsequent cylindrical packaging material. The packaging control device 10 controls various operations including operation timings of the packaging material feeding unit 4 and the lateral seal unit 8 of the packaging machine 1. In this embodiment, a weighing machine 11 is used as a product supply device, and a weighing machine control device 12 is provided as a product supply control device. The packaging control device 10 outputs a product drop request signal to the weighing machine control device 12 in accordance with the operation of the packaging device.

  Above the filling cylinder 3, there is disposed a weighing machine 11 that measures the weight of the product A per package and discharges the product A into the filling cylinder 3 for each packaging. The weighed product A is prepared in the hopper 13, the weighing machine control device 12 receives the product drop request signal from the packaging control device 10, and the product A is discharged by opening the open / close plate of the hopper 13. The discharged product A is put into the filling cylinder 3. The product A put into the filling cylinder 3 is accommodated in the cylindrical packaging material in which the bag bottom is formed by the sealing operation of the lateral seal portion 8. When a signal for opening the hopper 13 of the weighing machine 11 and discharging the product A is output from the weighing machine control device 12, the product discharge signal is also transmitted to the packaging control device 10. In response to receiving the product discharge signal, the packaging control device 10 starts the packaging operation of the packaging machine 1 including the subsequent operation (operation timing) of the lateral seal portion 8. Instead of the product discharge signal from the weighing machine control device 12, the product detection signal from the detection sensor 14 that detects the start of the product fall arranged in the upper part of the filling cylinder 3 is used for the subsequent packaging operation of the packaging machine 1. It may be a start signal.

  FIG. 2 shows an example of a product drop sensor. As shown in FIG. 2, a product drop sensor 20 is disposed in the immediate vicinity of the upper side of the horizontal seal portion 8. In the packaging device 1, a shutter 21 that receives the falling product A is normally provided in the vicinity of the upper side of the lateral seal portion 8 so as to be openable and closable. Take it. Since the shutter 21 receives the product A, the product A is prevented from colliding with the packaging material and acting on the lateral seal just welded to damage the lateral seal. Since the product drop sensor 20 is incorporated in the shutter 21, it is possible to detect the drop of the product A without complicating the structure of the packaging device 1. The product drop sensor 20 can be a load cell or a touch sensor that generates a detection signal when a load or pressure exceeding a predetermined level is detected when the product drop sensor 20 collides with the dropped product A.

  FIG. 3 shows another example of the product drop sensor. As shown in FIG. 3, a product drop sensor 30 for detecting a product such as a photoelectric sensor or an area sensor is disposed at a position sandwiching the cylindrical packaging material in the immediate vicinity of the upper side of the horizontal seal portion 8 and the upper side of the shutter 21. It is installed. Although the packaging material is preferably a transparent film, even if it is a colored packaging material, it is possible to know whether or not the product A is falling by comparing the detected light transmission amount with a reference value. . When the product drop sensor 30 is arranged, it is not necessary to incorporate the product drop sensor 20 into the shutter 21, but as in the case shown in FIG. 2, a load cell is incorporated to detect the product drop by the outputs of both sensors. Is also possible.

  FIG. 4 shows still another example of the product drop sensor. In the example shown in FIG. 4, the optical product drop sensor 31 is installed at a position above the top end position (uppermost end position) of the product A when the product A finishes dropping normally. When the product drop sensor 31 has detected the passage due to the drop of the product A and the product A is not detected to exist, it can be seen that the drop of the product A in the packaging unit has been completed. When the product drop sensor 31 detects the presence of the product A, it indicates that the top end position of the product A is abnormally high, and the side seal portion 8 may bite the product A during the next operation. The transverse seal 8 is not actuated. When the product drop sensor 31 still detects the presence of the product A even after a sufficient time has passed after the product A has dropped, there is an inconvenience in the drop position of the product A. It is preferable to stop the next discharge of the product A from the weighing machine 11. Similar to the example shown in FIG. 3, when the product drop sensor 30 is arranged, it is not always necessary to incorporate the product drop sensor 20 in the shutter 21.

  Time measurement for timing control in the vertical bag making and packaging system according to the present invention will be described. FIG. 5 is a schematic diagram illustrating time measurement of a dropped product in the packaging machine shown in FIG. FIG. 6 is a time chart showing the timing relationship between the detection of the product drop and the sealing operation by the horizontal seal portion based on the detection of the product drop in the packaging machine shown in FIG.

  Referring to FIG. 6, in the packaging device 1, as described above, the packaging control device 10 outputs a product drop request signal to the weighing machine control device 12 (A). The weighing machine control device 12 receives the product drop request signal, and transmits a product discharge signal to the packaging control device 10 when the hopper 13 is opened and the product A is discharged (B). Instead of the product discharge signal from the weighing machine control device 12, a product detection signal from the detection sensor 14 disposed on the upper portion of the filling cylinder 3 may be used. Upon receipt of the product discharge signal (product detection signal), the packaging control device 10 starts a subsequent packaging operation (for example, a lateral sealing operation including an operation timing by the lateral sealing portion 8) (C). As shown in FIG. 4, when a drop detection sensor 31 for detecting the top end of the product A is provided in relation to the filling cylinder 3, the product A to be packaged is a snack or a candy packaged in a small bag. When there are a large number of loose articles, the product drop detection by the product drop detection sensor 31 may occur when some of the products A fall first at the detection start timing, or fall behind the detection end timing. Product A may be detected. Since most of the product A falls as a lump, it is continuously detected in a certain period of time. However, for the product A that falls early or late before and after the lump, Detected as irregular pulses (D).

  The horizontal sealing operation (C) is substantially the same as the detection of the product drop by the product drop detection sensor 31 prior to the detection (E) of the drop of the product A by the product drop sensor 20 or the product drop sensor 30 such as a load cell. (C, D). When the horizontal seal portion 8 is closed, the tubular packaging material is sandwiched between the horizontal seal blocks 8a and 8b, and thermal welding is started. The sensor 20 or 30 starts detecting the fall of the product A at the timing when the clamping of the horizontal seal blocks 8a and 8b is started (E). At the timing when this seal is completed (the side seal blocks 8a and 8b are opened), a drop request for the product A for the next packaging is issued, and the drop of the product A is started (next A) . Prior to the next product A drop request, the horizontal seal by the horizontal seal portion 8 is completed and the horizontal seal blocks 8a and 8b start to open. The period is set so that the opening operation is completed. And since the opening operation | movement of the horizontal seal | sticker part 8 is performed continuously, the cycle of the start and completion | finish of such a detection of a fallen product, and opening / closing of the horizontal seal | sticker part 8 is repeated with timing.

  Thus, if the product A falling state can be known, the product passing state at the position of the product drop sensor 31 can be known, so that the transverse seal blocks 8a and 8b of the transverse seal portion 8 are closed. Timing can be determined. Further, when the sealing time during which the horizontal seal blocks 8a and 8b are closed is determined, the optimum opening / closing operation speed can be obtained.

The correction procedure of the product discharge timing in the weighing machine 11 is determined as follows. FIG. 7 is a flowchart showing an example of a product discharge timing correction procedure according to the present invention.
According to this flowchart, when the packaging device 1 starts operation, the weighing machine 11 is requested to drop the product (step 1, abbreviated as “S1”, the same applies hereinafter). As long as the packaging device 1 operates normally, the request for product drop is made at predetermined intervals thereafter. When the weighing machine 11 that has received the request for dropping the product starts discharging the product A by opening the hopper 13, a product discharge signal is transmitted from the weighing machine control device 12 to the packaging control device 10 ( Alternatively, when the dropped product falls at the top of the filling cylinder 3 or at the hopper exit, a product detection signal from the detection sensor 14 is transmitted to the packaging control device 10) (S2). While the falling product passes the detection line of the sensor, a detection signal is issued from the sensor, and the product fall detection timing is acquired (S3). The product fall detection timing may be obtained by averaging the detection timings of several drops from the weighing machine 11.

  The acquired product fall detection timing is compared with a reference timing linked to the operation of the packaging device 1 (S4). The reference timing can be any timing linked to the operation of the packaging device 1, and can be, for example, the closing operation start timing of the horizontal seal portion. When the product drop detection timing is earlier than the reference timing, the packaging control device 10 performs control to delay the drop request timing output to the weighing machine 11 by the time determined to be early (S5). ). Further, when the product fall detection timing is late compared to the reference timing, the packaging control device 10 performs control to advance the drop request timing output to the weighing machine 11 by the time determined to be late. (S6). With this adjusted drop time, the next product drop from the weighing machine 11 is required (return to S1).

  FIG. 8 shows another embodiment of the vertical bag making and packaging system according to the present invention. In the vertical bag making and packaging system shown in FIG. 8, the packaging device is the same as the embodiment shown in FIG. The product supply apparatus uses a bucket conveyor 40. In the bucket conveyor 40, each bucket 41 in which products for a single package serving as a packaging unit fed from a product carry-in mechanism (not shown) (which may be a weighing machine disposed on the floor) is placed at regular intervals. And is conveyed along the conveyor path 42. The bucket conveyor 40 is disposed so as to be reversed above the hopper / filling cylinder 3 of the packaging device 1, and a product A in a packaging unit is put into the hopper / filling cylinder 3 from each inverted bucket 41. By controlling the timing at which each bucket 41 of the bucket conveyor 40 is reversed with respect to the packaging timing of the packaging device 1, the same timing control as in the previous embodiment can be performed. Here, the bucket conveyor 40 has been described as an example of the conveyor, but the type of the conveyor is arbitrary as long as the conveyor can store or place the product A for each processing unit.

It is the schematic which shows one Example of the vertical type bag making packaging system by this invention. 1 is a schematic side view of a vertical bag making and packaging apparatus showing an example of a product drop sensor used in a vertical bag making and packaging system according to the present invention. It is the side schematic diagram of the vertical bag making packaging apparatus which shows another example of the product drop sensor used for the vertical bag making packaging system by this invention. It is the side schematic diagram of the vertical bag making packaging apparatus which shows another example of the product drop sensor used for the vertical bag making packaging system by this invention. It is the schematic explaining the time measurement of the fallen product in the vertical bag-making packaging apparatus shown in FIG. 6 is a time chart showing a timing relationship between detection of a product drop and a lateral seal operation based on the detection of the product drop in the packaging device shown in FIG. It is a flowchart which shows an example of the correction | amendment procedure of the product discharge timing of the vertical bag making packaging system by this invention. It is the schematic which shows another Example of the vertical bag making packaging system by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vertical type bag making packaging machine 2 Former 3 Filling cylinder 4 Packaging material feeding part 5 Drive pulley 6 Driven pulley 7 Timing belt 8 Horizontal seal part 8a, 8b Horizontal seal block 9 Cutter 10 Packaging controller 11 Weighing machine 12 Weighing machine controller 13 Hopper 14 Detection Sensor 20 Product Drop Sensor 21 Shutter 30 Product Drop Sensor 31 Product Drop Sensor 40 Bucket Conveyor 41 Bucket

Claims (12)

  A product supply device for supplying a product to be packaged for each packaging unit, a filling cylinder into which the product supplied by the product supply device is placed, and a cylindrical packaging material that is guided and travels to the outer periphery of the filling tube A vertical seal having a horizontal seal portion that forms a top end portion of a packaging bag in which the product that has been formed and supplied through the filling cylinder is accommodated and a bottom portion of the packaging bag that is subsequently formed. In the vertical bag making and packaging system provided with the mold bag making and packaging apparatus, the fall of the product is detected in the immediate vicinity of the upper side of the horizontal seal portion, and the operation timing of the horizontal seal portion is detected based on the detection of the product fall. A timing control method in a vertical bag making and packaging system, the method comprising adjusting a timing of loading the product into the filling cylinder from a product supply mechanism.   A timing deviation is obtained by comparing a fall timing of the product detected immediately above the lateral seal portion with a reference fall timing set with respect to the operation timing of the lateral seal portion, and the filling from the product supply device The timing control method in the vertical bag making and packaging system according to claim 1, wherein the timing of loading the product into the cylinder is adjusted based on the timing deviation.   A shutter for receiving the product falling immediately above the lateral seal portion is disposed so as to be openable and closable, and a load cell or touch sensor disposed on the shutter, or a photoelectric sensor or area disposed directly on the shutter. The timing control method in the vertical bag-making packaging system according to claim 1, wherein the sensor detects a drop of the product in the immediate vicinity of the upper side of the horizontal seal portion by a sensor.   The presence or absence of the product dropped at a position above the top end position of the product that has been normally dropped is detected, and in response to detecting the product at the upper position, the next time the lateral seal portion The timing control method in the vertical bag making and packaging system according to any one of claims 1 to 3, further comprising stopping the operation of the product and the next charging of the product from the product supply device.   5. The vertical bag making and packaging system according to claim 1, wherein the product supply device is a weighing machine that measures the product for each packaging unit and discharges the weighed product. Timing control method.   The said product supply apparatus consists of conveyors, such as a bucket conveyor which divides and conveys the said product for every packaging unit, The timing control in the vertical bag making packaging system of any one of Claims 1-4 Method.   A product supply device for supplying a product to be packaged for each packaging unit, a filling cylinder into which the product supplied by the product supply device is placed, and a cylindrical packaging material that is guided and travels to the outer periphery of the filling tube A lateral seal portion that forms a top end portion of a packaging bag that is heat-sealed in the lateral direction and contains the product that has been formed and supplied through the filling cylinder and a bottom portion of the packaging bag that is subsequently formed; In a vertical bag making and packaging system comprising a vertical bag making and packaging device having a packaging control device for controlling the sealing operation of the seal portion, the product supply device includes a product supply control device for controlling the input timing of the product. A product drop sensor for detecting the fall of the product is disposed in the immediate vicinity of the upper side of the horizontal seal portion, and the packaging control unit is configured to detect the product drop sensor detected by the product drop sensor. Based on the timing, a vertical bag manufacturing and packaging system consists of the relative product supply controller instructs the discharge timing of the products that are adjusted for operation timing of the transverse sealing section.   The packaging control device obtains a timing deviation by comparing a fall timing of the product detected by the product fall sensor with a reference fall timing set with respect to the operation timing of the lateral seal portion, and the product supply control device The vertical bag making and packaging system according to claim 7, wherein the discharge timing of the product to be commanded is adjusted based on the timing deviation.   A shutter for receiving the falling product is disposed in the vicinity of the upper side of the horizontal seal portion so as to be openable and closable. In order to detect the fall of the product in the immediate vicinity of the upper side of the horizontal seal portion, the shutter includes a load cell or a touch sensor. Alternatively, a vertical bag making and packaging system according to claim 7 or 8, wherein a photoelectric sensor or an area sensor is disposed immediately above the shutter.   The product drop sensor includes a product drop assist sensor installed at a position higher than the top end position of the product when the product finishes dropping normally, and the packaging control device includes the product drop sensor. In response to detection of the product by the auxiliary sensor, the next operation of the lateral seal portion and the next loading of the product into the filling cylinder of the product from the product supply device are stopped. The vertical bag-making packaging system according to any one of claims 7 to 9.   The vertical product according to any one of claims 7 to 10, wherein the product supply device is a weighing machine that measures the product for each packaging unit and puts the measured product into the filling cylinder. Mold bag packaging system.   11. The vertical bag making and packaging system according to claim 7, wherein the product supply device is a conveyor such as a bucket conveyor that divides and conveys the product for each packaging unit.

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