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EP2039608A1 - Vertikalfüllverpackungsmaschine - Google Patents

Vertikalfüllverpackungsmaschine Download PDF

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Publication number
EP2039608A1
EP2039608A1 EP06746187A EP06746187A EP2039608A1 EP 2039608 A1 EP2039608 A1 EP 2039608A1 EP 06746187 A EP06746187 A EP 06746187A EP 06746187 A EP06746187 A EP 06746187A EP 2039608 A1 EP2039608 A1 EP 2039608A1
Authority
EP
European Patent Office
Prior art keywords
content material
film
tubular film
vertical
feeding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06746187A
Other languages
English (en)
French (fr)
Other versions
EP2039608A4 (de
Inventor
Orihiro Tsuruta
Katsumi Nagai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orihiro Engineering Co Ltd
Original Assignee
Orihiro Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orihiro Engineering Co Ltd filed Critical Orihiro Engineering Co Ltd
Publication of EP2039608A1 publication Critical patent/EP2039608A1/de
Publication of EP2039608A4 publication Critical patent/EP2039608A4/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014—Tube advancing means
    • B65B9/2028—Rollers or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/303—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes reciprocating along only one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web having intermittent motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2007—Means for stripping or squeezing filled tubes prior to sealing to remove air or products from sealing area

Definitions

  • the present invention relates to a vertical filling-packaging machine which forms a long film drawn from a feed roll into a tubular film and feeding content material thereinto, thereby manufacturing a packaging bag (packaged product), and more particularly to a vertical filling-packaging machine which feeds the content material through an injection nozzle into the tubular film that includes a bottom portion.
  • the packaging machine which continuously manufactures a packaging bag filled with content material such as liquid (for example, see Japanese Patent Laid-Open No. 2005-112359 ).
  • the packaging machine manufactures the packaging bag by folding a long sheet of film drawn from a feed roll to form a tubular shape and by injecting the content material into the tubular film or forming a predetermined seal portion.
  • a typical packaging operation will be described with reference to Figure 1 .
  • Figure 1A illustrates an initial state of the packaging operation, in which lateral seal portion F2 formed in the previous process is formed at the lower end portion of tubular film 1', thereby allowing tubular film 1' to have a bottom portion.
  • a pair of squeezing rollers 45 is used to squeezingly divide the content material injected into the tubular film.
  • Lateral seal 60 is used to tightly seal an upper opening portion of the tubular film.
  • the pair of squeezing rollers 45 is driven so as to pinch tubular film 1 therebetween.
  • the content material inside tubular film 1' is divided into upper and lower portions. Since squeezing rollers 45 squeezingly pinch the portion in which the content material is present, in this way, the amount of air mixed into the final packaging bag 91 can be minimized.
  • lateral sealing mechanism 60 is moved downward in a state in which the tubular film is pinched, thereby forming lateral seal portion F2.
  • the content material continues to be fed from injection nozzle 15 and the fed content material is accumulated in an upper area higher than squeezing rollers 45.
  • the packaging operation of Figure 1 is configured such that when squeezing rollers 45 are opened, the content material is dropped downward, and such that when the content material is dropped, lower end 15a of the injection nozzle is exposed.
  • injection nozzle 15 is filled with the content material.
  • Figure 2B when the lower end of the nozzle is exposed and open to air, the content material remaining inside the nozzle is also dropped into the tubular film.
  • the present invention has been made with a view to solving the above-described problems, and an object of the present invention is to provide a vertical filing-packaging machine capable of feeding fluidized content material into a tubular film with good quantitative accuracy and with few air bubbles mixed into the content material.
  • a vertical filling-packaging machine comprises: an injection nozzle for feeding content material that is fluidized into a tubular film that includes a bottom portion; transport means for transporting the tubular film downward in a state in which the content material is fed thereinto; and a lateral sealing mechanism for tightly sealing the tubular film by heat sealing a portion of the tubular film, wherein the vertical filling-packaging machine manufactures a packaged product by a series of packaging operations including at least following operations: an operation of feeding the content material through the injection nozzle; an operation of transporting the tubular film downward in a state in which the content material is fed thereinto; and an operation of heat sealing by the lateral sealing mechanism, wherein an injection port of the injection nozzle is configured to be immersed in the content material throughout entirety of the series of packaging operations, and the operation of feeding the content material starts in a state in which the injection port of the injection nozzle is immersed in the content material.
  • the operation of feeding the content material starts in a state in which the injection port of the injection nozzle is immersed in the content material. Therefore, compared to the proposed feeding method as shown in Figure 2 , bubbles of air or the like are difficult to be mixed into the content material.
  • the injection port of the injection nozzle is configured to be always immersed in the content material during the series of packaging operations (in other words, the injection port of the injection nozzle is configured not to be opened to air), so that the inside of the injection nozzle is configured not to be emptied. Therefore, compared to the proposed feeding method as shown in Figure 2 , the quantitative accuracy of the content material to be fed is improved.
  • the above vertical filling-packaging machine may further include a pair of squeezing rollers which pinches the portion of the tubular film in which the fed content material is present, and which rotates in a state in which the pair of squeezing rollers which pinches the portion of the tubular film in which the fed content material is present, thereby forming a flat void-filled portion on the tubular film and transporting the tubular film downward.
  • the operation of feeding the content material may be to feed the content material into the tubular film that is located higher than the portion that is pinched by the pair of squeezing rollers.
  • the content material that has been accumulated in a position higher than that of the squeezing rollers may be dropped downward into the tubular film located lower than the squeezing rollers at the same time when the pair of squeezing rollers is opened, and after the content material is dropped, liquid level of the content material may be configured to be higher than the injection port of the injection nozzle.
  • the above vertical filling-packaging machine may further include a content material feeding mechanism including: a reservoir tank for reserving the content material; a feed passage for transferring the content material from the reservoir tank to the injection nozzle; pump means used as a driving source for transferring the content material from the reservoir tank to a side of the injection nozzle; a return passage for returning the content material from the side of the injection nozzle to the reservoir tank; and valve means capable of switching between an operation of feeding the content material, which has been transferred through the feed passage, into the tubular film through the injection nozzle and an operation of returning the content material, which has been transferred through the feed passage, back to a side of the reservoir tank.
  • a content material feeding mechanism including: a reservoir tank for reserving the content material; a feed passage for transferring the content material from the reservoir tank to the injection nozzle; pump means used as a driving source for transferring the content material from the reservoir tank to a side of the injection nozzle; a return passage for returning the content material from the side of the injection nozzle to
  • the above vertical filling-packaging machine may further include a film feeding device which holds two feed rolls, joins an end portion of a first film drawn from one of the feed rolls to an end portion of a second film drawn from the other of the feed rolls, and feeds the joined first and second films as a long film; and a vertical sealing mechanism which performs vertical sealing on side edge portions of the long film along a longitudinal direction of the long film so as to change the long film into the tubular film.
  • the above vertical filling-packaging machine may be configured such that the vertical sealing mechanism performs vertical sealing on a joint portion in which the first film and the second film are joined in a state in which an operation of transporting the long film is terminated, and the valve means of the content material feeding mechanism is switched to a position on a side of returning the content material to the side of the reservoir tank while the vertical sealing operation is being performed on the joint portion.
  • the time to perform vertical sealing on the joint portion may be configured to be longer than the time to perform an ordinary vertical sealing so as to prevent the content material from leaking from a vertical sealed portion formed by the vertical sealing.
  • the operation of feeding content material starts in a state in which the injection port of the injection nozzle is inside the content material, whereby the content material can be fed with good quantitative accuracy, and air bubbles mixed into the content material can be minimized.
  • packaging machine 10 of the present embodiment includes film feeding mechanism 10A that draws a film from feed rolls Ra and Rb, and joins film 1A and film 1B as needed. Further, packaging machine 10 includes packaging mechanism 10C that forms the film unrolled from film feeding mechanism 10A into a tubular shape, and that continuously manufactures a packaging bag by forming a vertical sealed portion and a lateral sealed portion thereon as needed.
  • Film feeding mechanism 10A a proposed film feeding mechanism, which includes a general configuration for such a packaging machine, can be used.
  • Film feeding mechanism 10A shown in Figure 3 uses two feed rolls Ra and Rb, and is configured such that, for example, when film 1A of feed roll Ra has been used up, film 1B of feed roll Rb is continuously unrolled. It should be noted that Figure 3 shows that film 1A is drawn into a side of the packaging mechanism 10C as a film on the using side, and that film 1B is held in the vicinity of joint sealer 71 as a film on the standby side.
  • a configuration is made such that, for example, sensor 83 can detect that film 1A on the using side runs short, and joint sealer 71 is driven on the basis of the detected result.
  • the end portion of using side film 1A and the end portion of standby side film 1B are heat-sealed so as to join the two films together. More specifically, as shown in Figure 4 , two films 1A and 1B are partially overlapped and two films are joined together by forming sealed portion 3. The region in which these two films are overlapped and the region in which sealed portion 3 is formed is called "joint portion 5".
  • packaging machine 10 of the present embodiment the use of film feeding mechanism 10A as described above allows a film to be continuously fed into packaging mechanism 10C.
  • Such a capability of continuously feeding a film is very advantageous in that there is no need to temporarily terminate manufacturing a packaging bag.
  • packaging mechanism 10C is the same as the vertical filling-packaging machine disclosed in the Applicant's Japanese Patent Laid-Open No. 2004-276930 .
  • Packaging mechanism 10C includes folding guide 14 for folding a film into a tubular shape; vertical sealing mechanism 30 which performs vertical sealing on the side edges of films folded by folding guide 14 to form vertical sealed portion F1 (see Figure 6 ) and to form tubular film 1'; and a pair of transport rollers 41, a pair of squeezing rollers 45 and lateral sealing mechanism 60, each of which arranged on the downstream side in the film transport direction from vertical sealing mechanism 30.
  • Heater bar 31 is configured to be able to advance and retreat (in the lateral direction in the figure) with respect to the film and also to move back and forth in the up/down direction in the figure, thereby providing a box-shaped motion as shown by arrow A 30 of Figure 3 .
  • Vertical sealing mechanism 30 performs sealing operation as follows. First, heater bar 31 moves in the direction of coming close to a film while in a state remaining at an ascending end position thereof, thereby allowing the film to be pinched between heater bar 31 and a main pipe (not shown). Then, in this pinched state, heater bar 31 moves downward in Figure 3 in synchronism with the film transport. The film to be heat-sealed receives heat from heater bar 31, and both side edges of the film are joined together. When heater bar 31 reaches a descending end position thereof, heater bar 31 moves away from the film and returns to the original height.
  • the above vertical sealing operation is repeated to form a continuous vertical sealed portion on an overlapped portion of both side edges of the film.
  • the vertical sealing mechanism performing such a box-shaped operation has an advantage of being capable of forming a vertical sealed portion without terminating the film transport.
  • tubular film 1' is transferred in a state of including a substantially circular cross section, namely, in a state of including a space inside tubular film 1' until tubular film 1' passes through vertical sealing mechanism 30.
  • tubular film 1' goes further downstream, tubular film 1' is changed into a flat pressed shape by a guide plate (not shown) provided between vertical sealing mechanism 30 and transport rollers 41.
  • Transport rollers 41 are arranged so as to pinch both side edges in the width direction of tubular film 1' pressed in this manner. Transport rollers 41 are one of film transport means in packaging mechanism 10C. When rotated, transport rollers 41 transport tubular film 1' downward.
  • a pair of squeezing rollers 45 pinches the tubular film so as to divide filling material injected into the tubular film.
  • squeezing rollers 45 are rotated in this state, a void-filled portion including no filling material therein is formed on the tubular film, and the tubular film is transported downward.
  • Lateral sealing mechanism 60 includes heater bar 61 incorporating heating means such as a heater, and heater bar receiver 62 arranged facing heater bar 61.
  • the pair of members is used to pinch tubular film 1' and heat the film, thereby forming lateral sealed portion F2 (see Figure 6 ) on the film.
  • Heater bar 61 and heater bar receiver 62 are configured to perform a box-shaped motion in the same way as for vertical sealing mechanism 30. More specifically, as shown by arrow A 60 of Figure 3 , heater bar 61 and heater bar receiver 62 with tubular film 1' pinched therebetween move downward in synchronism with the film transport. Heater bar 61 and heater bar move away from the film at the descending end position, and go back to the original position again.
  • heater bar 61 incorporates a cutter (not shown) for separating a packaging bag from tubular film 1' by cutting lateral sealed portion F2.
  • heater bar receiver 62 includes a relief groove formed so as to provide space between the protruded cutter and heater bar receiver 62.
  • content material feeding mechanism 20 includes reservoir tank 22 for reserving the content material; feed passage 21a for transferring the accumulated content material to injection nozzle 15; and pump 23 used as a driving source for transferring the content material. Further, in the present embodiment, there is return passage 21 b for returning the content material from a side of the injection nozzle 15 to a side of the reservoir tank 22. Three-way-valve 25 is provided to switch between the operation (referred to as "first mode") of feeding the content material transferred to a side of the injection nozzle into the tubular film and the operation (referred to as "second mode") of returning the content material through return passage 21b back to reservoir tank 22.
  • Such a configuration is advantageous in that the operation of feeding the content material into the tubular film can be controlled simply by switching three-way-valve 25 while pump 23 is being driven. In general, it takes some time to stabilize the feed rate of pump 23. If intermittent feeding is performed by switching on/off pump 23, the amount of content material to be fed may vary.
  • Packaging bag 91 is a so-called pillow type packaging bag in which two lateral sealed portions F2a and F2b (hereinafter collectively referred to as "F2") and vertical sealed portion F1 serving as a backlining are formed.
  • the inside of packaging bag 91 is filled with fluidized content material (e.g., liquid).
  • Vertical sealed portion F1 is a heat-sealed portion formed by vertical sealing mechanism 30, and lateral sealed portion F2 is a heat-sealed portion formed by lateral sealing mechanism 60.
  • Figure 7 is a process view explaining the packaging operation of packaging machine 10
  • Figure 8 is a timing chart showing the timing of the operation of an individual component thereof.
  • Figure 7A illustrates the initial state of a series of packaging operations, which corresponds to the state of time "t A " in Figure 8 .
  • lateral seal portion F2 formed in the previous process is formed at the lower end portion of tubular film 1', thereby allowing tubular film 1' to have a bottom portion.
  • a pair of squeezing rollers 45 and lateral sealing mechanism 60 are both in a state of being open.
  • Content material has already been injected into tubular film 1', and the liquid level thereof is located in a position (height h1) higher than lower end 15a of the injection nozzle.
  • lower end 15a of the injection nozzle is in a state of being immersed into the content material.
  • the content material inside the nozzle is dropped into the tubular film by its own weight, and thus the inside of the nozzle is in an empty state.
  • the content material is not dropped, and the inside of the nozzle remains in a state of being filled with the content material.
  • lateral sealing mechanism 60 pinches void-filled portion 2 and the lateral sealing operation starts.
  • a feeding operation is configured such that after the content material is dropped downward, the liquid level of the content material is higher than the position of lower end 15a of the nozzle (specifically, the same liquid level height h1 as the initial state).
  • Such a configuration assures that lower end 15a of the nozzle remains to be immersed in the content material continuously during the series of packaging operations. Therefore, even after the content material inside the nozzle is dropped downward, the inside of the nozzle is not emptied. According to such a configuration in which the inside of the nozzle is filled with the content material and the operation of feeding the content material starts in this state, the content material can be fed with a very favorable quantitative accuracy.
  • Packaging bag 91 can be continuously manufactured by repeatedly performing the series of packaging operation as described above.
  • the time per cycle shown in Figure 8 may be, for example, 1.0 second.
  • the time when squeezing rollers 45 are opened may be set to 0.4 seconds (corresponding to the individual process of Figures 7A and 7E ), and the time when squeezing rollers 45 are closed may be set to 0.6 seconds (corresponding to the individual process of Figures 7B to 7E ).
  • the filled content material is liquid or the like, and a sealing failure occurs in sealed portion F1 or F2, or joint portion 5 of packaging bag 10, the content material may leak from that place. For this reason, the individual sealed portions of such a packaging bag need to be reliably heat-sealed.
  • joint portion 5 of the films is located on the bellows of packaging bag 92, and, for example, if a sealing failure occurs in vertical sealed portion F1' including joint portion 5, the content material will leak from that place.
  • joint portion 5 is a portion where two films are overlapped, and thus, insufficient heat sealing in the vertical sealing operation may cause insufficient sealing strength. Accordingly, it is preferable to sufficiently heat seal vertical sealed portion F1' including the joint portion.
  • packaging bag 92 since packaging bag 92 includes joint portion 5, the bag may be a defective product in the first place. Therefore, it is considered that such a packaging bag does not have to be filled with the content material. However, if the content material is not fed into the packaging bag, the following problem may occur.
  • packaging bag 91 follows packaging bag 92 as shown in Figure 9 , but, if packaging bag 91 has already been cut and separated, emptied packaging bag 92 is in a state of hanging down at the bottom of the tubular film. Since packaging bag 92 is emptied, the tensile force, which is due to the weight of content material in packaging bag 92, is not applied to the tubular film. Therefore, the emptied packaging bag 92 may swingly move to be in contact with heater bar 61 (see Figure 6 ). If packaging bag 92 is in contact with heater bar 61, the film may melt to adhere to the heater bar, which will disturb the film transport. In order to prevent such problem, it is preferable to feed the content material into packaging bag 92 in the same way as for other packaging bags.
  • the vertical sealing operation is configured such that the time of the vertical sealing operation to be performed in a region including joint portion 5 is longer than the time of an ordinary vertical sealing operation.
  • the "ordinary vertical sealing operation” refers to vertical sealing that is to be performed on a region not including joint portion 5.
  • the time of the ordinary vertical sealing operation may be 1 second; and the time of the vertical sealing operation that is to be performed in a region including joint portion 5 (hereinafter referred to as "film joint vertical sealing operation”) may be 4 seconds.
  • This vertical sealing operation starts when joint portion 5 of the films reaches the position to be pinched by vertical sealing mechanism 30.
  • a sensor (not shown) for detecting joint portion 5 may be used to detect whether joint portion 5 reaches the position to be pinched by vertical sealing mechanism.
  • back calculation may be made from the relation between the distance from joint sealer 71 (see Figure 3 ) to vertical sealing mechanism 30 and the length of a film transferred per cycle; and after a predetermined number of ordinary vertical sealing operations is performed, the film joint vertical sealing operation may start.
  • the film joint vertical sealing operation starts when, as shown by time “t H " of Figure 8 , the film transport is terminated, squeezing rollers 45 are opened, and the liquid level height is "high” (see Figure 7D ).
  • the time when vertical sealing mechanism 30 pinches the film is set to, for example, 2.0 to 3.0 seconds. Since the pinching time for the ordinary vertical sealing operation is 0.4 seconds, the pinching time for the film joint vertical sealing operation is about five times longer than the ordinary time.
  • Three-way-valve 25 (see Figure 4 ) is switched at time t H when the content material transferred from reservoir tank 22 is returned to reservoir tank 22 through return passage 21 b.
  • pump 23 continues to be driven, so that the content material circulates from feed passage 21a through the three-way-valve and return passage 21 b to reservoir tank 22.
  • the content material is configured to circulate, thereby preventing more content material than is necessary from being fed into tubular film.
  • the feeding of the content material can be controlled, for example, by temporarily terminating the driving of pump 23.
  • controlling the feeding of the content material by turning on/off the pump tends to cause the amount of feeding content material to vary.
  • the present embodiment is configured to control the feeding of the content material just by switching three-way-valve 25 while pump 23 is being driven. Since the feeding rate of pump 23 is stable, it is difficult for a problem such as a reduction in quantitative accuracy to occur.
  • three-way-valve 25 to switch the feeding of the content material has another advantage in which a change in the quality of the content material can be prevented.
  • the vertical sealing operation of joint portion 5 of films needs to terminate the packaging operation only for several seconds, but for some reason, there may be a case in which terminating the packaging operations for a longer time may be required.
  • a change in temperature may cause the viscosity of the content material to be changed.
  • the change in viscosity may cause the amount of feeding content material that is being fed into tubular film to vary. For this reason, as in the present embodiment, it is preferable to ensure that the content material is being circulated during the time when the feeding operation is being terminated, thereby assuring uniform temperature of the content material and suppressing the above problem from occurring.
  • an ordinary packaging operation is resumed. More specifically, squeezing rollers 45 are opened, the content material is dropped downward (see Figure 7D ), three-way-valve 25 is switched, and the operation of feeding the content material into tubular film is resumed. Subsequently, the ordinary packaging operation is repeated as described above so as to continuously manufacture packaging bags.
  • the packaging bag is not limited to the pillow type, but a three-way seal type or a four-way seal type may be used.
  • vertical sealed portion F1 (see Figure 6 ) thereof is not limited to this, but a so-called butt-seam type or an envelope type may be used.
  • Both vertical sealing mechanism 30 and lateral sealing mechanism 60 of the packaging machine shown in Figure 3 perform a box-shaped motion, but the present invention is not limited to this, and a general vertical sealing mechanism and lateral sealing mechanism for performing heat sealing in situ without moving up and down may be used.
  • Packaging machine 10 of Figure 3 is provided with the pair of squeezing rollers 45, but the present invention is not limited to this, and may be configured as a packaging machine without a squeezing roller.
  • injection port 17 may be formed at lower end 15a of the nozzle or as shown in Figure 10B , injection port 17 may be formed on the outer periphery surface of the nozzle.
  • liquid level height h1 can be located higher than injection port 17 after squeezing rollers 45 are opened as shown in Figure 7E . This assures that injection port 17 is not exposed to air, and the content material inside the nozzle is not dropped into the tubular film and remains in the nozzle. As a result, the same advantage of the present invention as described above can be obtained.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
EP06746187A 2006-05-10 2006-05-10 Vertikalfüllverpackungsmaschine Withdrawn EP2039608A4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/309370 WO2007129407A1 (ja) 2006-05-10 2006-05-10 縦型充填包装機

Publications (2)

Publication Number Publication Date
EP2039608A1 true EP2039608A1 (de) 2009-03-25
EP2039608A4 EP2039608A4 (de) 2010-05-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06746187A Withdrawn EP2039608A4 (de) 2006-05-10 2006-05-10 Vertikalfüllverpackungsmaschine

Country Status (7)

Country Link
US (1) US20090199519A1 (de)
EP (1) EP2039608A4 (de)
JP (1) JPWO2007129407A1 (de)
CN (1) CN101437722A (de)
AU (1) AU2006343121A1 (de)
CA (1) CA2650650A1 (de)
WO (1) WO2007129407A1 (de)

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JP2012030866A (ja) * 2010-07-30 2012-02-16 Kyoraku Co Ltd 包装袋入り食用油の製造方法
JP2013010510A (ja) * 2011-06-28 2013-01-17 Taisei Lamick Co Ltd 被包装物の充填装置
JP6272095B2 (ja) * 2014-03-13 2018-01-31 四国化工機株式会社 充填包装機のプレッシャフランジ
JP6322449B2 (ja) * 2014-03-13 2018-05-09 四国化工機株式会社 充填包装機のプレッシャフランジ
JP2018203364A (ja) * 2017-06-08 2018-12-27 オリヒロエンジニアリング株式会社 縦型製袋充填包装機、内容物入りフィルム包装袋の製造方法
CN107235187B (zh) * 2017-06-15 2023-09-12 中山市方越电子科技有限公司 一种轴管件制袋装袋机
JP7518358B2 (ja) * 2020-06-30 2024-07-18 キョーラク株式会社 製袋充填方法

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WO2007129407A1 (ja) 2007-11-15
CA2650650A1 (en) 2007-11-15
EP2039608A4 (de) 2010-05-19
US20090199519A1 (en) 2009-08-13
CN101437722A (zh) 2009-05-20
AU2006343121A1 (en) 2007-11-15

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