JP2008174289A - Vertical bag forming and filling machine and method for preventing/controlling item to be packaged from being caught - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a machine for preventing an item to be packaged from being caught during lateral sealing as to a vertical bag forming and filling machine. <P>SOLUTION: In order to prevent/control an item to be packaged from being caught, a shutter for intercepting the drop of the item during lateral sealing is provided at the top of a lateral sealer/cutter. A lateral sealing closing operation starts at a certain period of time after the shutter is closed. The right and left tip ends of the shutter at the top of the sealer/cutter have a vertical unevenness and close in a staggered condition. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method and an apparatus for controlling a shutter and a ironing plate in a horizontal seal in a vertical bag making filling and packaging machine.

  For example, in the conventional vertical bag making filling and packaging machine, as shown in FIG. 4, the packaging film is guided to the former 9 and folded so as to wrap the product filling cylinder 2 and aligned on the front side of the former. 3 'is vertically sealed to form the packaging cylinder H, and the packaging cylinder H is pulled down by the film feeding device 4 provided on the side surface of the product filling cylinder to hang down the product filling cylinder 2, and then the horizontal seal ( An end seal is known which is laterally sealed by the cutter device 5 and cuts the packaging tube H to discharge the finished product J.

  Although there are some which are sealed at a fixed position (intermittent type), this horizontal seal part is known as a continuous type which performs box motion as shown in FIG. The box motion is an operation for moving the horizontal seal / cutter device 5 together in a downward direction in synchronization with the flow of the packaging cylinder at the straight portion (b) without stopping the flow of the packaging cylinder. That is, since the sealing by the heater is continued at the straight portion (b), the sealing time can be extended without stopping the flow of the packaging cylinder. In addition, the contents such as candy put in the packaging cylinder are thrown in from the top through the product filling cylinder 2 during the return period C in the box motion of the horizontal seal.

  The operation of the horizontal seal (end seal) cutter device 5 is as follows. In the upper part (d) of the box motion (b), the horizontal seal (end seal) heater is closed according to the cut position of the packaging cylinder H, and before the horizontal seal heater is closed, First, close the pair of opposing shutters that project and hold on the upper and lower sides of the horizontal seal heater closer to each other than the horizontal seal heater, and then sandwich the packaging cylinder flatly, and then Next, the horizontal seal is closed at the top of the package to be dropped and filled through the product filling cylinder and the bottom of the package to be dropped and filled next. And a cutter cuts the cut position in the middle of the two horizontal strips.

  The box motion type horizontal seal cutting device has two circular loops (A) in which a locus drawn by the operation of a pair of horizontal seal heaters faces a pair of cam curves such that one side of a circle is cut by a straight line. . Therefore, the operation is lowered while the pair of horizontal seal heaters are closed and the horizontal two-line seal is lowered, and then the cutter cuts the cut position of the packaging cylinder between the horizontal two-line seals during the horizontal seal, and then continues to be packaged. Symmetrical box motion that repeats the operation of opening up and returning to a high level so as not to interfere with the movement is continuously performed.

  The two pairs of shutters attached to the box motion type horizontal seal cutting device 5 have the same configuration as the two pairs of shutters attached to a conventional horizontal seal cutting device which is not a box motion type and are normal ones. When the horizontal seal cutting device 5 performs a box motion and the pair of horizontal seal heaters closes, the shutter closes before the pair of horizontal seal heaters and holds the packaging cylinder flatly. Yes.

  The vertical bag making filling and packaging machine has a packaged product that is bulky when the pair of horizontal seal (end seal) heaters perform horizontal sealing, and the packaged product rises after the packaged product falls, May cause defective packaging. For this reason, a product biting prevention device provided with a pair of squeezing plates is attached to the horizontal sealing / cutting device, and the position to be cut of the packaging cylinder while the pair of side sealing heaters are opened by the pair of squeezing plates. Forcibly pushing the object to be packaged by squeezing a distance from above to below.

  As a product biting prevention device of a horizontal sealing / cutting device in a conventional vertical bag making filling and packaging machine, JP-A-58-195101, USP5203145, USP4947618, USP4663917, and JP-A-5-330504, Japanese Laid-Open Patent Publication No. 9-12003. There is a slight difference in the operation of the box motion depending on the structure of the ironing board.

  Further, in Japanese Patent Laid-Open Nos. 9-12003 and 10-297619, the ironing plate is mounted in the same place and in the same configuration as the conventional shutter, and is integrated with the heater for the horizontal seal. The packaging cylinder is held flat while performing box motion. With this configuration, the ironing stroke can be shortened to the minimum necessary level, and the air pressure in the bag can be prevented from rising abnormally during ironing, thereby preventing the bag from bursting. Therefore, the above conventional example provides a product biting prevention method for a box motion type horizontal sealing / cutting device in a vertical bag making filling packaging machine capable of realizing high-speed packaging by the above configuration.

However, even if the conventional shutter or ironing device described above is used, the object to be packaged falls from the gap of the upper shutter, or the object to be packaged that has already fallen is lifted by the rising airflow generated by the closing operation of the horizontal seal. The package bites into the side seal portion, causing a failure of the bag making filling and packaging machine.
Japanese Patent Laid-Open No. 9-12003 Japanese Patent Laid-Open No. 10-267619 JP 2000-226006 A JP 2002-59905 A

  It is an object of the present invention to provide a method and an apparatus for reliably preventing biting of an object to be packaged at the time of horizontal sealing in a vertical bag making filling and packaging machine.

  According to the vertical bag making and filling machine of the present invention, the control method for preventing biting of an object to be packaged is formed by vertically sealing both edges of a packaging film to form a packaging cylinder. A horizontal seal (end seal) cutting device that lowers and seals the upper side of the article to be packaged filled in the packaging cylinder and the lower side of the article to be packaged to be dropped and filled next, and cuts the middle. In the vertical bag making and packaging machine, a shutter is provided at the top of the horizontal seal (end seal) cutting device to block the fall of an article to be packaged at the time of horizontal sealing, and the horizontal seal is cut after a certain time after the shutter is closed. The seal closing operation is started.

  Further, when the shutter is closed, the closing operation of the horizontal seal (end seal) cutting device is stopped and the closing operation of the horizontal seal is started after a certain period of time. Is the time required to finish passing through the transverse seal space. Still further, a shutter for squeezing the package body before the horizontal seal is provided at the lower part of the horizontal seal (end seal) cutting device, and the closing operation of the horizontal seal is started after a certain time after the shutter is closed. It is characterized by that.

  Alternatively, the vertical bag making and filling and packaging machine of the present invention forms a packaging cylinder by vertically sealing both edges of the packaging film, and the film is lowered by the film feeding device to form a lateral seal (end In a vertical bag-filling and packaging machine that cuts the middle by sealing two horizontal strips at the upper side of the article to be packed filled into the packaging cylinder by the sealing device and the lower side of the article to be dropped and filled next The above-mentioned horizontal seal (end seal) cutting device is provided with a shutter for blocking the fall of the article to be packaged at the time of the horizontal seal, and the left and right ends of the shutter have a step on the top and the bottom and are closed in an alternating state. It is characterized by that.

  In addition, the packaging body is provided with a shutter in front of the lateral seal at the lower part of the lateral seal (end seal) cutting device, the shutter is closed with a gap, and the closed gap and the staggered The ascending air current generated at the time of lateral sealing is released to the upper part of the shutter through the bent part of the package body that is bent and closed by the closed upper shutter.

In the present invention, when the shutter is provided on the upper side of the horizontal sealer, when the shutter is closed, the horizontal sealer is temporarily stopped, and the packaged material passed just before the shutter closes has a time to pass through the horizontal seal surface. It is possible to prevent the article to be packaged from biting into the lateral seal surface.
In addition, when a shutter is provided at the bottom of the horizontal sealer, the horizontal sealer is temporarily stopped when the shutter is closed, and after being dropped, the packaged material that has been lifted by the rising air flow generated by the closing operation of the horizontal seal sinks. By waiting for this, it is possible to prevent the article to be packaged from biting into the lateral seal surface.

  In addition, at the top of the horizontal seal (end seal) cutting device of the present invention, a shutter is provided for blocking the filling of the article to be packaged at the time of horizontal sealing. When the next article to be packaged falls, the film is in a completely closed state, so that the fragments of the article to be packaged and the like do not fall from the gap of the upper shutter to the horizontal seal portion. Therefore, it is possible to effectively prevent the packaged item from biting into the lateral seal surface.

  As an example to which the present invention is applied, an outline of a basic operation as a basis of a box motion type horizontal sealing / cutting apparatus in a vertical bag making filling and packaging machine will be briefly described with reference to FIGS. For details, refer to JP-A-9-12003.

  In FIG. 5, a pair of ironing plates 6a and 6b are provided below the pair of horizontal seal heaters 5a and 5b, and a pair of shutter plates 7a and 7b are provided on the upper side, and the receiving plates 10a and 7b are provided on the shutter plates 7a and 7b. 10b is attached.

  As shown in FIGS. 4 to 8, the packaging film F is folded so as to wrap the product filling cylinder 2, and both edges of the film are vertically sealed by the vertical sealing device 3 to form the packaging cylinder H, and on the side of the product filling cylinder 2. The packaging cylinder H is pulled down by the provided film feeding device 4 and hangs down below the product filling cylinder 2. At the same time, a box motion is given by a pair of cam curves m1 and m2 (see FIG. 5), and a pair of lateral seal (end seal) heaters 5a and 5b are closed while being closed to form a horizontal double seal. At the time of the horizontal sealing, the middle (cut position C) of the horizontal double seal of the packaging cylinder H hanging downward along the product filling cylinder 2 is cut by the horizontal sealing / cutting device 5. Thereafter, the horizontal seal heaters 5a and 5b are opened and returned to their upward positions.

  In FIG. 5, ironing starts from I and ironing is completed at II. These I to II become the ironing section, then the end heater seal starts from III, and the seal is completed at IV. These III to IV become seal sections, and return to the ironing of I through the outer peripheral section to IV to I.

  The operation process from the time when the horizontal seal heaters 5a and 5b are opened after the horizontal seal is completed and returned to the highest position until the horizontal seal is lowered and the horizontal seal is started is as follows. Divided into actions. As a first-stage operation, the pair of ironing plates 6a, 6b elastically held in parallel with the lower surfaces of the pair of horizontal seal heaters 5a, 5b are close to each other so that the packaging cylinder H can be flattened from the open state. When the pair of side seal heaters 5a, 5b is in the open state and close to the limit where it does not come into contact with the flattened packaging cylinder H, and when the pair of ironing plates 6a, 6b are in proximity, The lowering of the packaging cylinder H is being decelerated or stopped so that the cut position C is positioned below the ironing plates 6a and 6b as required.

  As the operation of the second stage, the horizontal sealing / cutting device 5 is relative to the packaging cylinder H while maintaining the proximity of the pair of ironing plates 6a, 6b and the pair of horizontal sealing heaters 5a, 5b. The horizontal sealing / cutting device 5 is lowered so that the cutter 5c of the horizontal sealing / cutting device 5 approaches the cut position C of the packaging cylinder H by descending at a large descending speed.

  As a third stage operation, the packaging cylinder H is lowered by increasing the descending speed of the packaging cylinder H at least during the shifting of the descending speed of the packaging cylinder H and the descending speed of the horizontal sealing / cutting device 5. When the speed and the descending speed of the pair of horizontal seal heaters 5a and 5b are synchronized and the cut position C of the packaging cylinder H reaches the horizontal seal start position, the speed synchronization is completed and the horizontal seal / cut device 5 cutter 5c coincides with the cutting position of the packaging tube H.

  The pair of horizontal seal heaters 5a and 5b move in an arc from the open state at the highest position, which is the point of symbol II, and approach the point of symbol III until reaching the point of symbol IV. It descends while approaching, closes further from here, closes at the point of reference V, descends to the point of reference VII, and on the way, the cutter 5c performs a cutting operation at the point of reference VII, and moves circularly from the point of reference VII Then, it passes through the lowest position, which is point IX, and further moves in a circular arc and returns while rising, and is the most open middle position at the same height as point IV. A pair of symmetric box motions are provided that pass through the point of symbol I, move further in a circular arc and return to the upper position while returning to the highest position, which is the point of symbol II.

  The pair of squeezing plates 6a and 6b are supported on the lower surfaces of the pair of horizontal seal heaters 5a and 5b via support rods 25 and 25, respectively, and protrude from and approach the horizontal seal heater 5a or 5b. . The support rod 25 is slidably inserted into a guide hole of a support guide 26 fixed to the horizontal seal heater 5a or 5b, and is urged by a spring 27 in a seal / seal release direction. An adjustment screw having a rubber or plastic shock-absorbing cap fitted on the tip of the screw is provided at both ends of each of the ironing plates 6a and 6b, and the cap protrudes from the ironing plates 6a and 6b and comes into contact therewith. The pair of ironing plates 6a and 6b are close to each other with the separation dimension B (FIG. 6) secured. When the horizontal seal heaters 5a and 5b are located close to the separation point A (FIG. 6) at the point indicated by reference numeral III, the pair of ironing plates 6a and 6b are separated from each other by a distance smaller than the separation dimension A. Close by dimension B.

  The pair of squeezing plates 6a and 6b configured as described above are separated when the horizontal seal heaters 5a and 5b move to a point of symbol III by performing a box motion and come close to a separation dimension A. The horizontal seal heaters 5a and 5b are moved close to each other while maintaining the distance B, and are moved downward while maintaining the separation distance B while the heaters 5a and 5b are moved from the point III to the point VIII. The pair of squeezing plates 6a and 6b are squeezed by making the descending speed of the squeezing plates 6a and 6b larger than the descending speed of the packaging cylinder H during the operation of descending from the point III to the point V. It can be performed. The ironing stroke is proportional to the speed difference between the lowering speed of the ironing plates 6a and 6b and the lowering speed of the packaging cylinder H. If the descending speed of the packaging cylinder H is zero while the ironing plates 6a and 6b perform ironing, the ironing stroke is maximized.

  The pair of squeezing plates 6a, 6b are close to each other while maintaining the separation distance B when the horizontal seal heaters 5a, 5b move to the point of symbol III by performing box motion and come close to the separation dimension A. The packaging cylinder H is flattened, and the ironing operation is performed at a speed higher than that of the packaging cylinder H as it passes from the upper position of the packaging cylinder H to the cut position C and descends to the lower position. When the article to be packaged is above the position to be sealed of the packaging cylinder H, the heaters 5a and 5b for the lateral seals push the product to the lower side of the position to be sealed to force the product to be pushed. While avoiding biting and lateral sealing, excess air below the squeezing plates 6a and 6b in the bag is allowed to escape upward to avoid rupture of the bag.

With reference to FIG. 5 thru | or FIG. 8, the relative positional relationship of a ironing board and a packaging cylinder as a heater for horizontal seals, and the packaging process of a to-be-packaged object are demonstrated. FIG. 5 shows the horizontal seal heaters 5a and 5b returned to the position of reference numeral II. The packaging cylinder H is already filled with the article W to be packaged, and the cut position C is already positioned below the position of the symbol III. FIG. 6 shows that the horizontal seal heaters 5a and 5b reach the position of symbol III and come close to each other with a separation dimension A, and the ironing plates 6a and 6b and the shutters 7a and 7b come close to each other with a separation dimension B. Where.
When the horizontal seal heaters 5a and 5b reach the position of symbol III, the horizontal moving component disappears, so that the rapid lowering speed is reached, and the ironing is performed until the horizontal seal heaters 5a and 5b reach the position of symbol IV. Ironing is performed on the packaging cylinder H when the plates 6a and 6b are stopped or descending at a low speed.

  FIG. 7 shows a state where the horizontal seal heaters 5a and 5b reach the position of the symbol VI while performing the horizontal double seal and the cutter 5c protrudes to cut the cut position C of the packaging cylinder H. At this time, the next package W is dropped and filled and received by the receiving plates 10a and 10b attached to the shutters 7a and 7b.

  FIG. 8 shows where the horizontal seal heaters 5a and 5b reach the position of reference numeral VIII and the ironing plates 6a and 6b and the shutters 7a and 7b are finished and start to open. At this time, since the lateral seal heaters 5a and 5b are open, the bag package X falls.

  In this way, the product for preventing the product of the horizontal seal heater is in a state in which the horizontal seal heaters 5a and 5b are approached from the open state to the highest position by the cam curves m1 and m2, and are separated by a certain dimension. The box motion is given such that when it comes close to it, it descends by a certain dimension, closes closer and closes, performs a horizontal seal, and then descends by a certain dimension and then opens and returns to avoid interference with the package. A pair of opposing squeezing plates 6a and 6b are placed on the lower side of each of the sealing heaters 5a and 5b so as to protrude from a position closer to the other side as compared with the horizontal sealing heaters 5a and 5b, and are elastically supported. When the heaters 5a and 5b perform a box motion, the pair of ironing plates 6a and 6b are moved down in the proximity of the pair of ironing plates 6a and 6b. The film feed and the box motion of the horizontal seal cutting device 5 are respectively shifted as required by the separate servo motors 8a and 8b, and the ironing plates 6a and 6b come closer to the upper position than the cut position C of the packaging cylinder H. By making the lowering speed of the ironing plates 6a and 6b larger than the lowering speed of the packaging cylinder H until the cutter 5c coincides with the cut position C of the packaging cylinder H and the lateral seal heaters 5a and 5b are closed. The ironing plates 6a and 6b flatten the packaging cylinder H and perform ironing.

  Although the above basic operation is known, in the present invention, in such a vertical bag making filling and packaging machine, the time to wait for the package to pass and disappear from the horizontal seal space for a certain period of time prior to the horizontal seal. It is intentionally provided.

  The conventional device has been devised to close the shutter before the horizontal sealer is fully closed, and to prevent the packaged item from falling, so that the biting is prevented. There was a high possibility that the package to be passed just before the shutter was closed would bite into the horizontal seal.

  Further, in the basic operation, the next package W is dropped and filled in FIG. 7 and the receiving plates 10a and 10b attached to the shutters 7a and 7b are received, but will be described later between the conventional shutters 7a and 7b. There is a slight gap in order to escape the air blown up at the time of horizontal sealing, and in the case of a fragile package such as potato seeds or potato chips as a package, a slight amount is passed through the gap. In some cases, scraps or the like of the object to be packaged fall, and this is caught between the horizontal seals, resulting in a defective product.

  In the present invention, it is designed so that the horizontal sealing operation is performed after a certain delay time after the upper shutter is closed and the next article to be packaged falls. Therefore, even if the next packaged waste falls from the gap of the shutter, the horizontal sealing is performed after the dropping is completed, so that the fragments of the packaged item do not bite into the horizontal seal space. .

In addition, the squeezing operation before the horizontal seal and, in some cases, a separate sponge, the end sealer lower package already filled with the packaged material has been evacuated. Is pressed and heated, so that blow-up occurs at the time of horizontal sealing from the lower package of the horizontal sealer that has already been filled with the article to be packaged. Since the lower shutter releases air from such a lower package, the lower shutter is not completely closed, and has a slight gap. The blow-up causes scraps and fragments of the package in the lower package to be wound up and often bites into the horizontal seal space from the gap of the lower shutter during the horizontal seal.
This biting of the article to be packed into the horizontal seal not only becomes a defective product but also causes a machine failure, so it must be avoided.

  In the present invention, since the lower shutter is closed in synchronization with the upper shutter, a certain time delay is taken after the lower shutter is closed, and a piece of the packaged material that has entered the horizontal seal space by the above-mentioned blow-up. It is controlled so that the horizontal seal is performed in a state where the liquid drops again from the horizontal seal space. In this way, the opening and closing operation of the horizontal seal is performed in two stages to adjust the passage time of the package. Therefore, the probability that a piece of a packaged article or the like bites into the lateral seal space is greatly reduced.

  The operation may be such that the upper shutter and the lower shutter move separately from the horizontal sealer. In this case, the shutter is attached by an independent cylinder on the upper side sealer. In addition to the box motion type continuous bag making and filling machine, as shown in, for example, Japanese Patent Application Laid-Open No. 10-203502, intermittent operation type vertical filling packaging that temporarily stops the lowering of the package during horizontal sealing. The present invention is effectively applied to a machine.

About 10 to 15% of the time of one cycle is taken as the waiting time from the closing of the shutter to the horizontal sealing. For example, one cycle of a normal vertical filling and packaging machine is about 1.5 seconds (40 to 60 rpm), and in this case, it is about 0.15 to 0.25 seconds.
As a method for preventing biting of the article to be packaged at the time of the horizontal sealing, the shutter structure is also devised.

  1 to 3 show examples of the shutter structure of the present invention. 2 is a side view of the horizontal sealer portion. FIG. 2 shows a state in which the horizontal sealers 27 and 28 are open, and FIG. 3 shows a state in which the horizontal sealers 27 and 28 are closed. FIG. 1 is a top view of the horizontal sealer viewed from above. In FIG. 1, 41 and 44 are sliders, and 42 and 43 are shutters. 45 is a cylinder (cushion), 46 is a shutter (upper), 47 is a shutter (lower), 48 is a stopper, and 49 is a horizontal heater block.

  In FIG. 2, 21 and 22 are upper shutters, and 24 and 25 are lower shutters. 1 to 3 show a structure in which the upper shutters 21 and 22 and the lower shutters 24 and 25 are integrated with the horizontal sealers 27 and 28. However, the present invention is not limited to this, and the upper shutter is separate from the horizontal sealer. It may be that which moves independently, or that the lower shutter is separated from the horizontal sealer and moves independently.

  The distal ends of the shutters 21 and 22 protrude in the center direction by about 15 mm from the distal ends of the lateral seals 27 and 28, and are attached in steps in the vertical direction. Therefore, when the horizontal sealers 27 and 28 are closed and the horizontal sealing is performed, the distal ends of the shutters 21 and 22 are stepped so that the distal ends overlap each other as shown in FIG. .

  At this time, the film 30.31 is overlapped on the left and right sides, bent into a letter shape through the distal end portion of the shutter 21 and then the distal end portion of the shutter 22, and is pulled downward. Even when the horizontal seal is closed, the lower shutters 24 and 25 are not completely closed, and a slight gap is provided. This is a passage for allowing the air blown up at the time of the lateral sealing to escape upward. The air that has escaped to the upper part through the passage flows out to the upper part while spreading between the films folded in the above-mentioned character shape. This is because the pressure contact force of the bent portion is not so strong, and the film of the bent portion is pushed and spread by the pressure of the air blown up at the time of the horizontal sealing.

  Since the folded film is completely closed, when the next packaged article falls on the upper part, the next packaged article falls into the horizontal seal portion from the gap of the shutter as in the conventional case. Is effectively prevented.

  Therefore, if the upper shutter closed in the above-mentioned step is used, the fragments of the upper package are not dropped from the gap of the upper shutter at the time of horizontal sealing as in the prior art. This is significantly reduced and improved.

  In this invention, when the shutter is closed, the horizontal sealer is temporarily stopped, and the packaged material that has passed just before the shutter closes has time to pass through the horizontal seal surface, so that the packaged product bites into the horizontal seal surface. In addition, even when a lower shutter is provided, by temporarily stopping the horizontal sealer and having the time for the package to be lifted by the rising air flow generated by the closing operation of the horizontal seal to sink, It can effectively prevent the packaged item from biting into the lateral seal surface, greatly reducing the occurrence of defective products and reducing machine failures, thus improving the reliability of machine product manufacturing. And the industrial utility is high.

  In addition, the left and right shutters at the top of the horizontal sealer have steps above and below, which are alternately closed, so that the film is completely closed when the next packaged item falls, It is possible to effectively prevent a piece of package from falling into the horizontal seal part and effectively preventing the package from biting into the horizontal seal surface, so that the occurrence of defective products is greatly reduced. Failure is also reduced. Therefore, the reliability of manufacturing machine products is improved and the industrial utility is high.

It is the top view which looked at the horizontal sealer part of the present invention from the upper part. It is a side view of the horizontal sealer part of this invention, and shows the state which the horizontal sealer is open. It is a side view of the horizontal sealer part of the present invention, and shows the state where the horizontal sealer is closed. It is a general view of a conventionally known vertical bag making filling and packaging machine. The operation | movement figure of the horizontal seal | sticker part of the vertical type bag making filling packaging machine of FIG. 4 is shown. The other operation | movement figure of the horizontal seal part of the vertical bag making filling packaging machine of FIG. 4 is shown. The other operation | movement figure of the horizontal seal part of the vertical type bag making filling packaging machine of FIG. 4 is also shown. The other operation | movement figure of the horizontal seal part of the vertical type bag making filling packaging machine of FIG. 4 is also shown.

Explanation of symbols

21 Shutter 22 Shutter 24 Shutter 25 Shutter 27 Horizontal sealing device 28 Horizontal sealing device 30 Film 31 Film 32 Film 33 Film 41 Slider 42 Shutter 43 Shutter 44 Slider 45 Cylinder 46 Shutter (upper)
47 Shutter (bottom)
48 Stopper 49 Horizontal seater block

Claims (5)

A package is formed by vertically sealing both edges of a packaging film to form a packaging cylinder, and the packaging cylinder is lowered by a film feeding device and filled into the packaging cylinder by a lateral seal (end seal) cutting device. In a vertical bag making filling and packaging machine that cuts the middle by sealing two horizontal strips on the upper side of the package and the lower side of the package to be dropped and filled next,
The horizontal seal (end seal) cutting device is provided with a shutter for blocking the fall of the packaged object at the time of horizontal sealing, and the closing operation of the horizontal seal is started after a certain time after the shutter is closed. A control method for preventing biting of an article to be packaged in a vertical bag making filling and packaging machine.   When the shutter is closed, the closing operation of the horizontal seal (end seal) cutting device is stopped, and the closing operation of the horizontal seal is started after a certain period of time. 2. The method for preventing biting of an object to be packaged in a vertical bag making filling and packaging machine according to claim 1, wherein the time is required to finish passing through the seal space.   A lower shutter of the horizontal seal (end seal) cutting device is provided with a shutter for squeezing the package body before the horizontal seal, and the closing operation of the horizontal seal is started after a certain time after the shutter is closed. The method for preventing biting of an article to be packaged in the vertical bag making filling and packaging machine according to claim 1. A package is formed by vertically sealing both edges of a packaging film to form a packaging cylinder, and the packaging cylinder is lowered by a film feeding device and filled into the packaging cylinder by a lateral seal (end seal) cutting device. In a vertical bag making filling and packaging machine that cuts the middle by sealing two horizontal strips on the upper side of the package and the lower side of the package to be dropped and filled next,
At the top of the horizontal seal (end seal) cutting device, there is a shutter that shuts off the fall of the object to be packaged at the time of horizontal sealing. Vertical bag making filling and packaging machine.   At the bottom of the horizontal seal (end seal) cutting device, the package body is provided with a shutter for squeezing before the horizontal seal, the shutter is closed with a gap, and the closed gap and the staggered closure are closed. The vertical bag making and filling and packaging machine according to claim 4, wherein an upward air flow generated at the time of lateral sealing is released to the upper part of the shutter through a bent part of the package body that is bent and closed by the upper shutter.