EP2666726B1 - Filling and sealing machine and method for filling and sealing of a bag - Google Patents

Filling and sealing machine and method for filling and sealing of a bag Download PDF

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Publication number
EP2666726B1
EP2666726B1 EP13002721.2A EP13002721A EP2666726B1 EP 2666726 B1 EP2666726 B1 EP 2666726B1 EP 13002721 A EP13002721 A EP 13002721A EP 2666726 B1 EP2666726 B1 EP 2666726B1
Authority
EP
European Patent Office
Prior art keywords
bag
retaining means
wall portion
filling
bar
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.)
Active
Application number
EP13002721.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2666726A2 (en
EP2666726A3 (en
Inventor
Franck Velghe
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.)
ATLA'CON BV
Original Assignee
ATLA'CON BV
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 ATLA'CON BV filed Critical ATLA'CON BV
Publication of EP2666726A2 publication Critical patent/EP2666726A2/en
Publication of EP2666726A3 publication Critical patent/EP2666726A3/en
Application granted granted Critical
Publication of EP2666726B1 publication Critical patent/EP2666726B1/en
Active 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/32—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by external pressure diagonally applied
    • 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
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B65B51/146—Closing bags

Definitions

  • the present invention relates to an apparatus and a method for filling and welding (sealing) of a bag according to the preamble of claim 1 and claim 14, respectively. Furthermore, the invention relates to an apparatus and method for supplying a bag to a filling and / or sealing device. Finally, the invention relates to a bag, in particular for use in such an apparatus or method.
  • FIG. 2 discloses in FIG. 2 an embodiment of a bag filling equipment. Bag 12 is held in place by a movable clamp 30 and a fixed clamp 32 which attach to corners 14 and 16 of bag 12 respectively. A suction mechanism 36 replicated on each side of the bag 12 is actuated. As the suction cups 36 are withdrawn, causing bag 12 to open as shown in dotted outline in FIG. 2 , the center of bag 12 will move to the right to position 40 since clamp 32 is fixed and clamp 30 is movable.
  • FIG. 6 Another embodiment is shown in FIG. 6 where tray 77 supports the weight of bag 12 when filled with foodstuff. Support of part of the weight of loaded bag 12 also facilitates the efficient operation of squeeze bars 78. Neck 18 is then sealed by conventional heat seal bars 82 while squeeze bars 78 maintain the bag in the form 12". After the bag has been sealed, squeeze bars 78 are retracted and the bag resumes the shape of 12'.
  • EP 0 340 315 discloses a system for delivering a bag to a filling station, for gripping the bag in transporting jaws below its mouth, for filling it with a pre-set quantity of material, and for discharging the bag to a sealing station.
  • the system comprises suction heads 19 which are coupled with clamping means 17a, 17b, 18a, 18b with links 23, 24, 25, 26. After filling of the bag, the clamping means are moved apart, and the bag is transported to the welding station 7.
  • the present invention is to provide a device and a method with which a bag is filled and sealed in an improved and more efficient manner.
  • a device has the features of claim 1.
  • the device comprises a sealing bar and a pressure bar, an actuator, first and second retaining means, and a mechanical coupling between the sealing bar and the first and / or second retaining means and between the pressure bar and the first and / or second retaining means.
  • the sealing bar and pressure bar are arranged there between for receiving at least a peripheral edge of one or more filling openings of the bag and for welding of this peripheral edge.
  • the actuator is arranged for moving the sealing bar in relation to the drive bar between a clamping position and a rest position in which the pressure bar and the sealing bar are at a distance from each other.
  • the first retaining means and second retaining means are adapted for retaining the bag on both sides of the one or more filling openings, and are provided on both sides of the welding and pressure bar.
  • the mechanical coupling is arranged for the coupling of a movement of the sealing bar in relation to the pressure bar from the clamping position to the rest position to a movement of the first retaining means with respect to the second retaining means from a tensioning position to a filling position. In the filling position, the distance between the first and second retaining means is smaller than in the clamping position in such a way that the one or more filling openings will be open.
  • Such a device has the advantage of being compact and to enable a filling and welding operation close to each other, without the bag having to be transferred from one station to another.
  • the pressure bar itself may also be a sealing bar.
  • the mechanical coupling is preferably arranged to move towards each other the first and second retaining means when the actuator brings the sealing bar and the pressure bar into the rest position and to move away from each other the first and second retaining means when the actuator brings the sealing bar and pressure bar from the rest position to the clamping position.
  • the mechanical coupling comprises a first rod that is pivotally connected at one end with the first retaining means and at another end with the sealing bar; and a second rod that is pivotally connected at one end to the first retaining means and at another end with the pressure bar.
  • the mechanical coupling also includes a third bar which is pivotally connected at one end with the second retaining means and at another end with the sealing bar, and a fourth rod that is pivotally connected at one end to the second retaining means and on the other end with the pressure bar. In this way, the first and second retaining means both move when the sealing bar moves relative to the pressure bar.
  • the actuator is preferably arranged to move the sealing bar in relation to the pressure bar in a first movement direction.
  • the first and / or the second retaining means are preferably movably mounted in a second movement direction that is perpendicular to the first movement direction.
  • the pressure bar and / or the sealing bar are provided with a suction cup which is adapted to be pulled from a peripheral edge portion of a filling opening of the bag when the pressure bar and / or the sealing bar move to the rest position. This facilitates the opening of the bag while the distance between first and second retaining means decreases as a result of the mechanical coupling.
  • the first retaining means comprise a first and a second clamping block, between which a first side of the bag can be clamped.
  • the second retaining means comprises a first and a second clamping block, between which include a second side of the bag can be clamped.
  • the first and the second clamping block of the first retaining means are preferably pivotally connected respectively with the first and the second rod, and the first and the second clamping block of the second retaining means are preferably pivotally connected to with respectively the third and the fourth rod.
  • the first clamping block(s) is preferably movable along a first guide shaft that extends in the second direction of movement and the second clamp block(s) is preferably movable along a second guide shaft that also extends in the second direction of movement.
  • the first and the second clamping block of the first retaining means are designed in such a way that a mechanical coupling arises when the first clamping block is placed against the second clamping block for holding a bag.
  • the first and the second clamping block of the second retaining means are arranged so that a mechanical coupling arises when the first clamping block is placed against the second clamping block for holding a bag. In this way, the first and the second clamping block are forced to move together and a synchronous movement of the pressure bar and of the sealing bar is guaranteed. This results in that a filling opening is safely opened during the movement towards each other of the first and second retaining means.
  • the clamping block or each first clamping block is provided with a pin arranged to stabbing through a hole in the bag and the second clamp block or each second clamp block is provided with a recess that can accommodate the pin.
  • a pin acts with the associated recess as a mechanical coupling that ensures that the first and the second suspension block move together.
  • a first mounting piece is provided that is coupled to the sealing bar and a second mounting piece that is coupled to the pressure bar.
  • Each of the first clamping block is preferably movably mounted on a first mounting piece on both sides of the sealing bar
  • each second clamp block is preferably movably mounted on the second mounting piece, on both sides of the pressure bar.
  • the actuator is preferably provided with a first and a second drive shaft supported in a first and second driving block that is affixed to, respectively, the first and second mounting piece.
  • first and second guide shafts are mounted on respectively the first and second mounting piece, whereby the clamping blocks are movable along these shafts.
  • One or more guide shafts may further be provided, parallel to the first and second drive shaft, for guiding the movement of the sealing bar and the pressure bar.
  • the first and / or second retaining means comprise one or more suction cups for vacuum attachment of a bag.
  • suction cups may be arranged for instance to affix a bag against the first clamping blocks before the second clamping blocks are placed against the first clamping blocks.
  • a method for filling and sealing a bag having the features of claim 13.
  • the method comprises: holding the bag by means of first and second retaining means on either side of one or more filling openings, wherein a sealing bar and pressure bar press against the peripheral edge portions of the one or more filling openings; moving away from each other the sealing bar and the pressure bar while the first and second retaining means move towards each other to open the bag; filling of the bag; moving towards each other of the sealing bar and the pressure bar while the first and second retaining means move away from each other for the closing of the bag; sealing of the one or more filling openings of the bag.
  • the terms 'move away from each other' and 'move toward each other' of two components may mean that both of these elements move or that one of the two elements move.
  • a buffer with a plurality of bags wherein each bag is provided with one or more filling openings, and the method comprises the retrieval of a bag from the buffer by the first and second retaining means.
  • the buffer may be provided of a feed system for feeding and presenting of a bag to the first and second retaining means.
  • an apparatus for supplying a bag to a filling and / or sealing device.
  • the device comprises a buffer with a plurality of bags, wherein each bag is provided with one or more openings and provided at a first and second side of the one or more filler openings of, respectively, a first and a second sealed portion with a first and a second hole; and first and second retaining means which are provided with, respectively, a first and a second pin that is adapted to stabbing respectively through the first and the second hole of a bag.
  • the apparatus preferably comprises a first mounting frame and a second mounting frame with a sealing bar and a pressure bar, respectively, or vice versa, which sealing bar and pressure bar are adapted for receiving there between at least a peripheral edge of the one or more filling openings of the bag and for the welding of this peripheral edge.
  • a drive is provided with a drive shaft that is fixedly connected to a drive rod.
  • the drive rod is pivotally connected to a first rod that is pivotally connected to the second mounting frame.
  • the first mounting piece is pivotally connected by means of a second rod to a second fixed point of rotation and the second mounting frame is pivotally connected by means of a third rod to a third fixed point of rotation.
  • a clutch is provided between the second and the third rod.
  • the first, second and third rod and the coupling are arranged and dimensioned so that the first mounting frame reaches on the one hand to the buffer, and on the other hand to a position opposite to the second mounting frame for the filling and / or welding operation.
  • the invention relates to a bag having at least one filling opening, comprising a first wall portion and a second wall portion that are attached to each other except at the level of the at least one filling opening, wherein a first part of the first wall portion and an opposite first part of the second wall portion are welded to each other and a first hole is arranged through the first parts, and wherein a second part of the first wall portion and an opposed second part of the second wall portion are welded to each other and a second hole is made through these second parts.
  • a bag is adapted for use in an apparatus or method as described above.
  • FIGS 1 , 2 and 4 illustrate an embodiment of a filling and welding device according to the invention.
  • the device comprises a first mounting piece 14 and a second mounting piece 24 on which in each case a set of components are fixedly or movably mounted.
  • the device comprises a sealing bar 13 that is mounted movably in a first direction of movement B1 on the first mounting piece 14.
  • the sealing bar 13 is intended to work together with a pressure bar 23 which is movably mounted in the moving direction B1 on the second mounting piece 24.
  • the sealing bar 13 and the pressure bar 23, are arranged for receiving there between at least the peripheral edge of the filling opening of the bag and for sealing of this opening.
  • the drives 35, 36 For driving the movement of the sealing bar 13 and the pressure bar 23 are provided the drives 35, 36.
  • a separate drive is provided for the sealing bar 13 and the pressure bar 23.
  • guide rods 17, 18 that guide the movement of the sealing bar 13 in the direction of movement B1.
  • guide rods 27, 28 to the pressure bar 23 are provided for the sealing bar 13.
  • this guidance in the direction B1 can be realized in many other ways.
  • a first retaining means in the form of a first clamping block 11 and a second clamp block 21, and second retaining means in the form of a first clamping block 12 and a second clamping block 22, are foreseen.
  • the first clamping blocks 11, 12 are movably mounted on the mounting piece 14, on both sides of the sealing bar 13.
  • the second clamping blocks 21, 22 are movably mounted on the mounting piece 24 on both sides of the pressure bar 23.
  • a mechanical coupling is provided with the sealing bar 13 and the pressure bar 23. More specifically, a first rod 31 connects the sealing bar 13 with the first clamping block 11.
  • the second clamping block 21 is connected to the pressure bar 23 by means of a second control rod 32.
  • the first and second clamping block 12, 22 are connected, respectively, by means of a third rod 33 and a fourth rod 34 to respectively the sealing bar 13 and the pressure bar 23.
  • the ends of these rods 31-34 are each pivotally connected about a vertical pivot axis. These rods 31-34 have as a result that the moving away from each other of the sealing bar 13 and the pressure bar 23, the first retaining means 11,21 and the second retaining means 12, 22 are moved towards each other.
  • first and second guide shafts 51, 52 and 61, 62 which extend in a second movement direction B2 which is perpendicular to the first direction of movement B1.
  • first and second guide shafts 51, 52 and 61, 62 are mounted on the first mounting piece 14, and the second mounting piece 15 respectively.
  • the clamping blocks 11, 12 are each provided with a pin 71, 72 which are intended to stabbing through respectively the holes 41, 42 of the bag.
  • a possible embodiment of the bag is shown schematically in Figure 3A in which the pre-sealed parts are hatched, and after filling the sealed portion 46 is displayed in a dotted line.
  • the holes 41, 42 are mounted in sealed portions at the top corners of the bag.
  • Such a bag is typically manufactured by applying to one another and by sealing or welding the hatched parts of two or more layers of film material. Note that many other shapes and sizes for the bag are possible.
  • Figure 3B illustrates another embodiment with two holes 141, 142 and a handle 145 which are arranged in the sealed parts of the bag.
  • each wall of the bag can be made out of a multi-layered film.
  • the bag can also be provided with more than two holes and / or with several filling apertures.
  • Figure 3C shows a variant with two filling openings O1, 02, and a central sealed portion 243 is used for obtaining two distinct filling compartments 247, 248.
  • the middle of the central portion 243 may further comprise a sealed tear line 249 along which the "double" 240 bag may be divided into two.
  • first clamping block 11, 12 and a second clamping block 21, 22 recesses 81, 82 are provided in which the respective pins 71, 72 can be accommodated.
  • the corners of a bag 40, 140 can be firmly clamped between a first clamping block 11, 12 and a second clamping block 21, 22.
  • the surface of the first and second clamping blocks that is intended to connect to the corners of the bag may be made rough in order to further improve the clamping.
  • a certain profile can also be given to the contact surface, whereby the first clamping block 11, 12 and the corresponding second clamping block 21, 22 are provided with complementary profiles. This, too, can further improve the clamping of the corners of the bag.
  • the pins 71, 72 have a dual function: the positioning of a bag 40, 140 on the one hand and, on the other hand, the achievement of a mechanical coupling between each of the first and second clamp block that ensures that the first and second clamp block move jointly, ensuring a synchronous movement of the sealing bar 13 and the pressure bar 23. It is noted that this synchronous movement can be achieved in other ways, for example by coupling of actuators 35 and 36.
  • a suction cup 81, 82 is provided between each of said first clamping block 11, 12 and the sealing bar 13. These suction cups 81, 82 will continue to hold a bag when the bag is brought on the pins 71, 72, prior to the closing of the clamping blocks, that is to say, prior to the bringing together of the first and second clamping blocks.
  • the sealing bar 13 is provided with a first suction cup 15 and the pressure bar 23 is provided with a second suction cup 25.
  • suction cups 15, 25 are intended to respectively draw with it a first part 43 and a second part 44 of a peripheral edge of the filling opening when the sealing bar 13 and the pressure bar 23 move away from each other to a rest position, while the first retaining means 11, 21 and the second retaining means 12, 22 move toward each other to a filling position. See also Figures 5A and 5B that will be discussed herein below.
  • Figure 5A illustrates the situation in which a bag 40 is held between the first clamping blocks 11, 12 and the second clamping blocks 21, 22.
  • the sealing bar 13 and the pressure bar 23 are located in a clamping position, in which the suction cups 15, 25 are placed at, respectively, a first part 43 and a second part 44 of the peripheral edge around the opening O of the pressing bag 40.
  • the distance D1 between the first and second retaining means is set to hold the bag into a stretched position.
  • FIG. 5A shows the distance between the first and second retaining means (D2 in Figure 5B ) is smaller, the filling opening O opens and a product, typically a liquid, can be introduced into the bag.
  • Figure 5B shows the filling position, in which the sealing bar 13 and the pressure bar 23 are in a rest position. After the filling of the bag, the sealing bar 13 and the pressure bar 23 are moved back to the clamping position of Figure 5A , and the filling opening is closed by welding. In this position, the first and the second retaining means are back in their farthest position in which the bag is nicely stretched.
  • Figure 6 illustrates an embodiment in which the pressure bar 323 can move freely.
  • the retaining means will move as a result of the mechanical coupling between the first and the second clamping block in the direction of movement B3 which is perpendicular to the moving direction B1 of the sealing bar 313, and thus provide for a movement of the pressure bar 323 which is synchronous to the movement of the sealing bar 313.
  • Figure 7 illustrates yet another embodiment in which the first retaining means 411, 421 are held fixed and only the second retaining means 412, 422 are movably mounted.
  • the device comprises a first mounting part 114 to which a sealing bar 113 is provided, and a second mounting part 124 on which a pressure bar 123 is provided, see Figures 8A and 8C .
  • the mounting parts 114, 124 and their associated or linked components may be analogous to the above-discussed first and second mounting pieces 14, 24 and their associated or linked components, but may also be arranged in a different way.
  • an actuator 202 and a set of drive rods are provided for moving the first and the second mounting piece 114, 124.
  • the actuator 202 rotates a drive shaft 203 which is fixedly connected to two drive rods 204, see Figures 8A and 8B .
  • the establishment has three fixed points of rotation such as: a first fixed rotation point 211 formed by shaft 203, a second fixed point of rotation 212 and a third fixed point of rotation 213.
  • the first mounting part 114 is pivotally connected via two rods 206 with the third fixed point of rotation 213.
  • the second mounting piece 124 is pivotally connected on the one hand by means of rods 205 to the drive rods 204 and on the other hand via a rod 207 pivotally connected to the second fixed point of rotation 212.
  • the movement of the first mounting part 114 is coupled to the movement of the second mounting piece 124 via connecting rods 208.
  • FIGS 9A-9E a rotation of the drive shaft 203 will first move upward the second mounting element 124, while the first mounting part 114 will move in the direction of a buffer 201 having a plurality of bags, as shown in Figure 9B.
  • Figure 9C shows the highest position of the second mounting piece 124, in which the first mounting piece 114 is placed against the buffer 201 in order to retrieve a bag 40. Then, the second mounting element 124 moves back down, while the first mounting piece 114 moves to the rear, see Figure 9D .
  • the second mounting piece 224 is located opposite to the first mounting piece 114.
  • the bag may be filled and sealed, for example, in the manner that has been discussed above with reference to Figures 5A and 5B .
  • the following rotational movement can be initiated.
  • a buffer 201 is used in which the bags 40 are hung vertically.
  • the skilled person understands that it is also possible to store the bags obliquely or horizontally.
  • Figures 10A, 10B and 11 illustrate a system with a horizontal buffer 301. As it is best seen in Figure 11 , the bags 40 are stored horizontally, in which positioning the pins 396 stab through the holes in the bag. Furthermore, a conveyor belt 390 is provided.
  • a number of pick-up pins 391, 392, 393 is moved by means of the conveyor belt 390 from a first position (see rod 391) adjacent the upper edge of a bag 40 in the buffer 301 to a second position (see the rod 393) in which the retrieved bag is supplied to the retaining means of the first mounting piece 314, see also Figure 10B .
  • Rod 392 is located in an intermediate position between the first and the second position.
  • Each pick-up rod 391, 392, 393 is provided with a plurality of suction cups 395 which are preferably positioned such that they engage near the openings at the sealed part of the bag 40.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Package Closures (AREA)
  • Closing Of Containers (AREA)
EP13002721.2A 2012-05-25 2013-05-25 Filling and sealing machine and method for filling and sealing of a bag Active EP2666726B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2012/0352A BE1020345A5 (nl) 2012-05-25 2012-05-25 Afvul- en lasinrichting en werkwijze voor het afvullen en dichtlassen van een zak.

Publications (3)

Publication Number Publication Date
EP2666726A2 EP2666726A2 (en) 2013-11-27
EP2666726A3 EP2666726A3 (en) 2014-01-22
EP2666726B1 true EP2666726B1 (en) 2016-11-16

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EP13002721.2A Active EP2666726B1 (en) 2012-05-25 2013-05-25 Filling and sealing machine and method for filling and sealing of a bag

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EP (1) EP2666726B1 (nl)
BE (1) BE1020345A5 (nl)

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CN106335671A (zh) * 2016-09-08 2017-01-18 合肥三冠包装科技有限公司 立式包装机真空开袋装置
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CN107719773A (zh) * 2017-09-29 2018-02-23 诺圆环保科技（苏州）有限公司 一种用于洗衣片包装的开袋热合装置
CN107640364A (zh) * 2017-10-31 2018-01-30 天津中德应用技术大学 基于电子商务的产品装袋装置
CN107719786A (zh) * 2017-11-03 2018-02-23 四川科伦药业股份有限公司 一种双面加热的封口机装置
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CN112722445B (zh) * 2021-04-01 2021-07-20 常州江苏大学工程技术研究院 一种便于灌料的保鲜袋热封装置及热封方法
CN114506504B (zh) * 2022-03-09 2023-04-28 山东巴夫巴夫食品科技有限公司 一种猪肉肠密封包装装置
CN115140337A (zh) * 2022-06-20 2022-10-04 福建永安弘兴食品有限公司 一种新型真空封口机
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EP2666726A3 (en) 2014-01-22
BE1020345A5 (nl) 2013-08-06

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