• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A packaging system (1) for producing pouches having multiple compartments and made from a first water-soluble foil (5) and a second water-soluble foil (6), which packaging system (1) comprises a mould conveyor (7) to move multiple moulds (8) in a conveying direction (9) along an endless trajectory, a suction device (14) configured to suck the first foil into the first suction chambers (11) and the second suction chambers (12), a first foil supplying device (16), a powder filling device (25) configured to fill the first compartment with a powder in an accurate manner, a further filling device (28) configured to fill the second compartment with a further powder or a liquid, and a second foil supplying device (17).
    公开号:ES2731236A2
    申请号:ES201990074
    申请日:2018-04-10
    公开日:2019-11-14
    发明作者:Arie Bood；Marc Robert Wijnberg
    申请人:Eme Engel Machf En Engineering BV；
    IPC主号:
    专利说明:

    [0001]
    [0002] Packaging system to produce bags
    [0003]
    [0004] FIELD OF THE INVENTION
    [0005]
    [0006] The invention relates to a packaging system for producing bags that have a compartment and are made of a first water soluble sheet and a second water soluble sheet.
    [0007]
    [0008] BACKGROUND OF THE INVENTION
    [0009]
    [0010] The invention is based on the idea that known packaging systems cannot produce high quality bags containing different materials.
    [0011]
    [0012] SUMMARY OF THE INVENTION
    [0013]
    [0014] The invention aims to provide an improved or alternative packaging system. This objective is achieved through a packaging system to produce bags that have multiple compartments and are made of a first water soluble sheet and a second water soluble sheet, the packaging system comprising;
    [0015]
    [0016] - a mold conveyor for moving multiple molds in a transport direction along an endless path, such as a circular path, in which each mold looks outward and has a first suction chamber, a second suction chamber and a support surface that surrounds and extends between the first and second suction chambers,
    [0017]
    [0018] - a suction device configured to suction the first sheet in the first suction chambers and in the second suction chambers, and in which the mold conveyor moves each mold along;
    [0019]
    [0020] - a first sheet supply device configured to place the first sheet on the support surface of the mold and on its first and second chambers of suction, after which the suction device sucks a first part of the first sheet that extends over the first suction chamber into the first suction chamber to form a first compartment of the bag and sucks a second part of the first sheet that extends over the second suction chamber into the second suction chamber to form a second compartment of the bag,
    [0021]
    [0022] - a powder filling device configured to fill the first compartment with a powder,
    [0023]
    [0024] - an additional filling device configured to fill the second compartment with an additional powder or liquid,
    [0025]
    [0026] - a second sheet supply device configured to place the second sheet in the first sheet and on the first full compartment and the second full compartment so as to leave the bag containing the powder in the first compartment and the additional liquid or powder in the second compartment, and in which
    [0027]
    [0028] --- the powder filling device comprises:
    [0029]
    [0030] a housing that has a rotor chamber, a chamber inlet and a chamber outlet,
    [0031]
    [0032] a powder supply to supply the powder to the chamber entrance,
    [0033]
    [0034] a rotor that is provided in the rotor chamber and comprises multiple dosing cavities on an outer peripheral surface of the rotor, and
    [0035]
    [0036] a rotor drive configured to rotate the rotor around a rotor shaft in a rotor direction to receive the powder in the dosing cavities at the chamber inlet and discharge the powder from the dosing cavities at the chamber outlet.
    [0037]
    [0038] The powder filling device is configured to fill the first compartment with the powder in a very exact manner. Because of this, no dust or little will end in the first sheet located outside the first suction chamber. This is essential because if (too much) dust is located in the parts of the sheet that cover the mold support surface, this has a negative effect on the sealing between the first and second sheets. Good sealing is required to prevent the contents of the first compartment and that of the second from being separated from each other and to prevent the bags from leaking from the first and second compartments to the outside world. In addition to this, it is essential that, during the filling of the first compartment, no dust (or very little) ends up in the second compartment to avoid contamination.
    [0039]
    [0040] In one embodiment of the packaging system, the rotor drive is configured to rotate the rotor gradually in rotor positions in which a full dosing cavity is placed in the chamber outlet.
    [0041]
    [0042] In one embodiment of the packaging system, the rotor drive is configured to rotate the rotor between the rotor positions at high speed and to stop the rotation of the rotor for a predetermined period of time in the rotor positions, or to move the rotor through the rotor positions at low speed.
    [0043]
    [0044] In one embodiment of the packaging system, the high rotor speed is between 30 and 120 revolutions / minute, both inclusive.
    [0045]
    [0046] In one embodiment of the packaging system, the low rotor speed is greater than 0 and less than 5 turns / minute.
    [0047]
    [0048] In one embodiment of the packaging system, the dosing cavities are placed one after the other in the rotor direction.
    [0049]
    [0050] In one embodiment of the packaging system, the chamber outlet ends at a nozzle that has a nozzle opening from which the dust is discharged and the nozzle opening is located along the endless path of the mold.
    [0051] In one embodiment of the packaging system, the powder filling device is configured to discharge the powder only when the first mold compartment is oriented towards the nozzle opening.
    [0052]
    [0053] In one embodiment of the packaging system, the powder filling device is configured to discharge the powder only when the first mold compartment is located just below the nozzle opening.
    [0054]
    [0055] In an embodiment of the packaging system, the nozzle opening is located at a distance of nozzle between 0.5 and 10 mm, both inclusive, from a virtual plane that extends through the mold support surface when the powder is discharged into the first compartment. The nozzle distance can be 3 mm.
    [0056]
    [0057] In one embodiment of the packaging system, the chamber outlet extends from the rotor chamber to the nozzle opening and comprises an output volume that is equal to or greater than the cavity volume of a single dosing cavity.
    [0058]
    [0059] In one embodiment of the packaging system, the cavity volume of each dosing cavity is between 5 and 30 cm3, both inclusive.
    [0060]
    [0061] In one embodiment of the packaging system, the chamber outlet extends downward, preferably in a substantially vertical direction or in a vertical direction.
    [0062]
    [0063] In one embodiment of the packaging system, the rotor chamber is defined by a chamber surface and the outer peripheral surface of the rotor is located at a rotor distance from the chamber surface.
    [0064]
    [0065] In one embodiment of the packaging system, the rotor distance is between 0.05 and 0.6 mm, both inclusive. The rotor distance can be 0.3 mm.
    [0066] In one embodiment of the packaging system, the powder filling device comprises a nozzle member that forms the chamber outlet and the nozzle opening, and the nozzle member is attached to the housing so that it pushes against the rotor .
    [0067]
    [0068] In one embodiment of the packaging system, the nozzle member is mounted in the housing with clearance and at least one elastic member, such as a spring or a rubber member, is provided which pushes the nozzle member against the rotor.
    [0069]
    [0070] In one embodiment of the packaging system, the clearance of the nozzle member is between 0.5 and 5 mm, inclusive. The clearance can be 1 mm.
    [0071]
    [0072] In one embodiment of the packaging system, the nozzle member pushes against the outer peripheral surface of the rotor.
    [0073]
    [0074] In one embodiment of the packaging system, the chamber outlet is defined by an outlet surface that is made of polytertafluoroethylene (Teflon).
    [0075]
    [0076] In one embodiment of the packaging system, the molds are moved first along the powder filling device and then along the additional filling device.
    [0077]
    [0078] In one embodiment of the packaging system, the first sheet supply device, the powder filling device, the additional filling device and the second sheet supply device are in the transport direction located in the positions after along the endless path.
    [0079]
    [0080] In one embodiment of the packaging system, the molds are moved first along the additional filling device and then along the powder filling device.
    [0081]
    [0082] In one embodiment of the packaging system, the first sheet supply device, the additional filling device, the powder filling device and the Second sheet supply device are in the transport direction located in subsequent positions along the path.
    [0083]
    [0084] In one embodiment of the packaging system, the mold conveyor is configured to move multiple rows of molds in the direction of transport along the endless path, the packaging system comprises a row of powder filling devices, and the rotors of the powder filling devices are interconnected and are all driven by the same rotor drive.
    [0085]
    [0086] In one embodiment of the packaging system, the housings of the powder filling devices are formed separately and mounted one after the other along the interconnected rotors.
    [0087]
    [0088] In one embodiment of the packaging system, the first sheet supply device, the powder filling device, the additional filling device and the second sheet supply device are located in fixed positions along the path without end.
    [0089]
    [0090] In one embodiment of the packaging system, the second sheet supply device comprises a sealing unit for interconnecting the first sheet and the second sheet.
    [0091]
    [0092] In one embodiment of the packaging system, the packaging system comprises a cutting device configured to cut the first interconnected sheet and the second sheet to form separate bags.
    [0093]
    [0094] In one embodiment of the packaging system, the mold conveyor moves the molds at a constant speed along the endless path.
    [0095]
    [0096] In one embodiment of the packaging system, the mold conveyor comprises a drum that can rotate around a drum shaft and that keeps the molds in a circular configuration around the drum shaft, and a drum drive configured to rotate the drum in the direction of the conveyor around the drum shaft to move the molds along the endless path.
    [0097] In one embodiment of the packaging system, the packaging system comprises a main frame that supports the first sheet supply device, the powder filling device, the additional filling device and the second sheet supply device, the drum moves the molds along the endless path when it is placed in an operating position relative to the main frame, and the drum is supported by a drum frame that can be coupled to the main frame to place the drum in the position of operation and can be decoupled from the main frame to remove the drum from the packaging system.
    [0098]
    [0099] BRIEF DESCRIPTION OF THE DRAWINGS
    [0100]
    [0101] Embodiments of the packaging system according to the invention will now be described, by way of example only, with reference to the accompanying schematic drawings in which the corresponding reference symbols indicate corresponding parts, and in which:
    [0102]
    [0103] Figures 1A-C show schematically perspective views of an embodiment of the packaging system according to the invention,
    [0104]
    [0105] Figure 2 schematically shows an enlarged view of part II of Figure 1C,
    [0106]
    [0107] Figure 3A schematically shows a perspective view of a single row of molds of the packaging system of Figure 1,
    [0108]
    [0109] Figure 3B schematically shows a top view of the single row of molds of Figure 3A,
    [0110]
    [0111] Figure 3C schematically shows a perspective view of the single row of molds of Figure 3A,
    [0112]
    [0113] Figure 4A schematically shows a front view of the packaging system of Figure 1,
    [0114] Figure 4B schematically shows a rear view of the packaging system of Figure 1,
    [0115]
    [0116] Figure 5 schematically shows an enlarged view of part V of Figure 4A,
    [0117]
    [0118] Figure 6 schematically shows an enlarged view of part VI of Figure 4A,
    [0119]
    [0120] Figure 7 schematically shows an enlarged view of part VII of Figure 4A,
    [0121]
    [0122] Figure 8A schematically shows a cross-sectional view of the powder filling device of the packaging system of Figure 1,
    [0123]
    [0124] Figure 8B schematically shows an enlarged view of part VIII in Figure 8A,
    [0125]
    [0126] Figure 9A schematically shows a perspective view of the powder filling device of the packaging system of Figure 1,
    [0127]
    [0128] Figure 9B schematically shows a first cross-sectional view of the powder filling device of Figure 9A,
    [0129]
    [0130] Figure 9C schematically shows a first enlarged view of part of Figure 9A,
    [0131]
    [0132] Figure 9D schematically shows a second enlarged view of part of Figure 9A,
    [0133]
    [0134] Figure 9E schematically shows a second cross-sectional view of the powder filling device of Figure 9A,
    [0135] Figure 9F schematically shows a third cross-sectional view of the powder filling device of Figure 9A,
    [0136]
    [0137] Figure 10A schematically shows a perspective view of the interconnected rotors of the powder filling devices of the packaging system of Figure 1,
    [0138]
    [0139] Figure 10B schematically shows a perspective view of a housing of the powder filling devices of the packaging system of Figure 1,
    [0140]
    [0141] Figure 10C schematically shows a perspective view of the interconnected rotors and two housings of the powder filling devices of the packaging system of Figure 1,
    [0142]
    [0143] Figure 11 schematically shows a cross-sectional view of the additional filling device of the packaging system of Figure 1,
    [0144]
    [0145] Figure 12 schematically shows a cross-sectional view of the second sheet supply device and the sealing device of the packaging system of Figure 1,
    [0146]
    [0147] Figures 13A-J schematically show the operating steps performed in one of the molds of the packaging system of Figure 1,
    [0148]
    [0149] Figures 14A-C show schematically perspective views of the packaging system of Figure 1,
    [0150]
    [0151] Figures 15A-C schematically show perspective views of the drum of the packaging system of Figure 1, and
    [0152]
    [0153] Figures 16A and B schematically show perspective views of the suction device of the packaging system of Figure 1.
    [0154]
    [0155] DETAILED DESCRIPTION OF THE DRAWINGS
    [0156] Figure 1A shows a perspective view of an embodiment of the packaging system 1 according to the invention. The packaging system 1 is configured to produce bags 2 that have multiple compartments and are made of a first water soluble sheet 5 and a second water soluble sheet 6.
    [0157]
    [0158] The packaging system 1 comprises a mold conveyor 7 for moving multiple molds 8 in a transport direction 9 along an endless path 10, more specifically a circular path. The molds 8 are shown in more detail in Figure 2. Each mold 8 looks outwards and has a first suction chamber 11, a second suction chamber 12 and a support surface 13 that surrounds and extends between the first and second suction chambers 11, 12.
    [0159]
    [0160] A suction device 14 (see Figures 14-16) is provided for suctioning the first sheet 5 in the first suction chambers 11 and in the second suction chambers 12.
    [0161]
    [0162] The mold conveyor 7 moves each mold 8 along a first sheet supply device 16 (see Figure 5), a powder filling device 25 (see Figures 6 and 8), an additional filling device 28 (see Figures 6 and 11), a second sheet supply device 17 (see Figures 6 and 12) and a cutting device 36 (see Figure 7).
    [0163]
    [0164] The mold conveyor 7 comprises a drum 40 that can rotate around a drum shaft 41 and that holds the molds 8 in a first circular configuration 42 around the drum shaft 41. A drum drive 45 is provided configured to rotate the drum. drum 40 in the transport direction 9 around the drum shaft 41 to move the molds 8 along the endless path 10 (see Figure 4B). The drum 40 allows the molds 8 to move along the endless path 10 in an efficient and stable manner.
    [0165]
    [0166] The packaging system 1 comprises a main frame 81 that supports the first sheet supply device 16, the powder filling device 25, the additional filling device 28, the second sheet supply device 17 and the cutting device 36 The drum 40 moves the molds 8 along the endless path 10 when it is placed in an operating position 82 relative to the frame main 81. The drum 40 is supported by a drum frame 83 that can be coupled to the main frame 81 to place the drum 40 in the operating position 82 and can be decoupled from the main frame 81 to remove the drum 40 from the packaging system 1 (see Figures 14A-C). The drum 40 is only supported by the drum frame 83 and not by the main frame 81. This allows the drum 40 to be installed or removed simply and quickly.
    [0167]
    [0168] Figure 2 shows an enlarged view of part II of Figure 1C. The drum 40 of the mold conveyor 7 is provided with rows 15 having thirteen molds 8. The rows 15 are placed one after the other in the transport direction 9 around the drum shaft 41. The first cutting grooves 65 are provided between the different molds 8 of a row 15 and the second cutting grooves 66 are provided between rows 15 of molds 8.
    [0169]
    [0170] Each row 15 of molds 8 comprises fixing suction holes 20 located on the outer sides of rows 15. These fixing suction holes 20 are used to hold the first sheet 5 in position when placed on the support surface 13 of the molds 8 so that it extends over the first and second suction chambers 11, 12. The first sheet supply device 16 will position the first sheet 5 so as to cover the fixing suction holes 20 and the entire mold 8 located between them.
    [0171]
    [0172] Figure 3A-C schematically shows perspective views of a row member 60 containing a single row 15 of molds 8. The first suction chambers 11 have first suction openings 52 to suction the first sheet 5 into the first suction chambers 11. The second suction chambers 12 have second suction openings 53 to suction the first sheet 5 into the second suction chambers 12. The member 60 of row 15 comprises a first connector 61 and a second connector 62 to establish a fluid communication between the first and second suction openings 52, 53 and the suction device 14. The first and second connectors 61,62 also establish fluid communication between the fixing suction holes 20 and the suction device 14.
    [0173]
    [0174] Figures 4A and 4B show a front view and a rear view, respectively, of the packaging system 1. Each of the first sheet supply device 16, of the powder filling device 25, of the additional filling device 28, of the second sheet supply device 17 and of the cutting device 36 is located in a fixed position along the endless path 10.
    [0175]
    [0176] The first sheet supply device 16, the powder filling device 25, the additional filling device 28, the second sheet supply device 17 and the cutting device 36 are in the transport direction 9 located in positions subsequent to along the endless path 10.
    [0177]
    [0178] Figure 5 shows an enlarged view of part V of Figure 4A. This part refers to the first sheet supply device 16 which is configured to place the first sheet 5 on the support surface 13 of the mold 8 and on its first and second suction chambers 11, 12 (see Figure 13B). After that, the suction device 14 will suck a first part 21 of the first sheet 5 that extends over the first suction chamber 11 towards the first suction chamber and a second part 22 of the first sheet 5 that extends over the second suction chamber 12 towards the second suction chamber 12 to form a second compartment 4 of the bag 2 (see Figure 13C).
    [0179]
    [0180] A heating unit 34 is integrated in the first sheet supply device 16 to supply the first sheet 5 in a heated state. The heating unit 34 comprises a first heated roller 91 that is in contact with the first sheet 5 and places the first sheet 5 on the molds 8. The heating of the first sheet 5 facilitates the formation of the first and second compartments 3, 4 of the bag 2.
    [0181]
    [0182] Figure 6 shows an enlarged view of part VI of Figure 4A. This part refers to the powder filling device 25, the additional filling device 28 and the second sheet supply device 17.
    [0183]
    [0184] The powder filling device 25 is configured to fill the first compartment 3 with a powder 26 (see Figure 13D).
    [0185]
    [0186] The additional filling device 28 is configured to fill the second compartment 4 with a liquid 29 (see Figure 13E).
    [0187] The second sheet supply device 17 is configured to place the second sheet 6 in the first sheet 5 and over the powder 26 in the first compartment 3 and the liquid 29 in the second compartment 4 to exit the bag 2 containing the powder 26 in the first compartment 3 and the liquid 29 in the second compartment 4 (see Figure 13F).
    [0188]
    [0189] The second sheet supply device 17 comprises a sealing unit 31 configured to interconnect the first sheet 5 and the second sheet 6. The sealing unit 31 comprises a second heated roller 92 and a third heated roller 93. After sealing the First and second sheets 5, 6, the bags 2 are still interconnected.
    [0190]
    [0191] Figure 7 shows an enlarged view of part VII of Figure 4A. The cutting device 36 is configured to cut the first sheet 5 and the second sheet 6 interconnected to form separate bags 2. The cutting device 36 is located after the second sheet supply device 17 when viewed in the transport direction 9. The cutting device 36 comprises a first cutting unit 37 for cutting along the first cutting grooves 65 and a second cutting unit 38 for cutting along the second cutting grooves 66 (see Figure 13G). After the cutting process, the bags 2 separate from each other and can be removed from the mold (see Figure 13H).
    [0192]
    [0193] A conveyor belt 67 covering the entire row 15 of molds 8 is placed after the cutting device 36 when viewed in the transport direction 9. The conveyor belt 67 holds the bags 2 separated in the mold 8 to facilitate a smooth transfer of the bag 2 on the conveyor belt 67 in a lower part of the drum 40. The conveyor belt 67 subsequently transports the bags 2 away from the drum 40 (see Figures 4A and 14C).
    [0194]
    [0195] Figures 8A and B show a cross-sectional view of the powder filling device 25. The powder filling device 25 comprises a housing 101 having a rotor chamber 102, a chamber inlet 103 and a chamber outlet 104, a powder supply 105 for supplying the powder 26 to the chamber inlet 103, a rotor 106 that is provided in the rotor chamber 102 and comprises multiple Dosage cavities 107 on an outer peripheral surface 108 of rotor 106, and a rotor drive (109 of Figure 9A) configured to rotate rotor 106 around a rotor shaft 110 in a rotor direction 111 to receive dust 26 in the dosing cavities 107 at the chamber inlet 103 and to discharge the powder 26 from the dosing cavities 107 in the chamber outlet 104.
    [0196]
    [0197] The rotor drive 109 is configured to rotate the rotor 106 gradually in the rotor positions 112 in which a full dosing cavity 107 is located in the chamber outlet 104. More specifically, the rotor drive 109 is configured to rotate the rotor 106 between the rotor positions 112 at a high speed and to stop the rotation of the rotor 106 for a predetermined period of time in the rotor positions 112. The high speed of the rotor 106 is between 30 and 120 turns. / minute, both inclusive.
    [0198]
    [0199] In another embodiment of the packaging system 1, the rotor drive 109 is configured to rotate the rotor 106 between the rotor positions 112 at high speed and to move the rotor 106 through the rotor positions 112 at low speed . The low speed of the rotor 106 is greater than 0 and less than 5 turns / minute.
    [0200]
    [0201] The dosing cavities 107 are placed one after the other in the rotor direction 109. The chamber outlet 104 terminates in a nozzle 113 having a nozzle opening 114 from which the powder 26 is discharged and the nozzle opening 114 is located along the endless path 10 of the mold 8. The powder filling device 25 is configured to discharge only the powder 26 when the first compartment 3 of the mold 8 is oriented towards the nozzle opening 114. The filling device of Powder 25 is configured to discharge only powder 26 when the first compartment 3 of the mold 8 is located just below the nozzle opening 114. The nozzle opening 114 is located at a nozzle distance 115 between 0.5 and 10 mm. , both inclusive, from a virtual plane 116 that extends through the support surface 13 of the mold 8 when the powder 26 is discharged into the first compartment 3.
    [0202]
    [0203] The chamber outlet 104 extends from the rotor chamber 102 to the nozzle opening 114 and comprises an output volume 121 that is equal to or greater than a cavity volume 122 of a single dosing cavity 107. The cavity volume 122 of each dosing cavity is between 5 and 30 cm3, inclusive. The chamber outlet 104 extends downward, preferably in a (substantially) vertical direction 117.
    [0204]
    [0205] Figures 9A-F show the powder filling device 25 of Figure 8. The rotor chamber 102 is defined by a chamber surface 118 and the outer peripheral surface 108 of the rotor 106 is located at a distance of rotor 123 from the chamber surface 118 (Figure 9C). The rotor distance 123 is 0.05 and 0.6 mm, both inclusive.
    [0206]
    [0207] The powder filling device 25 comprises a nozzle member 119 that forms the chamber outlet 104 and the nozzle opening 114, and the nozzle member 119 is attached to the housing 101 so that it pushes against the rotor 106. The member of nozzle 119 is mounted in the housing 101 with the clearance 126 and at least one elastic member 124, such as a spring or a rubber member, is provided which pushes the nozzle member 119 against the rotor 106. The clearance 126 of the member nozzle 106 is between 0.3 and 5 mm, inclusive. The nozzle member 106 pushes against the outer peripheral surface 108 of the rotor 106.
    [0208]
    [0209] The chamber outlet 104 is defined by an outlet surface 125 which is made of polytertafluoroethylene (Teflon).
    [0210]
    [0211] The packaging system 1 comprises a row of powder filling devices 25, and the rotors 106 of the powder filling devices 25 are interconnected and are all driven by the same rotor drive 109. The housings 101 of the filling devices of powder 25 are formed and mounted separately one after another along the interconnected rotors 106.
    [0212]
    [0213] Figure 10A shows the interconnected rotors 106 of the powder filling devices 25. Figure 10B shows a housing 101 of the dust filling devices 25. Figure 10C shows the interconnected rotors 106 and two housings 101. As shown in Figure 10C, a sealing member 120 is provided between neighboring housings 101.
    [0214] Figure 11 shows a cross-sectional view of the additional filling device 28. The additional filling device 28 comprises a liquid supply 56 that feeds the liquid 29 to a liquid outlet 57. The additional filling device 28 is configured to discharge a dose of liquid 29. In the situation shown, the second suction chamber 12, in which the second compartment 4 of the first sheet 5 (not shown) is located, is located below the liquid outlet 57 to receive the dose of the liquid 29. The additional filling device 28 only discharges liquid from the liquid outlet 57 when the second suction chamber 12 is located just below the liquid outlet 57.
    [0215]
    [0216] In a further embodiment of the packaging system 1 according to the invention, the additional filling device 28 is configured to fill the second compartment 4 with a second powder.
    [0217]
    [0218] In the shown embodiment of the packaging system 1 according to the invention, the molds 8 move first along the powder filling device 25 and then along the additional filling device 28. In such a situation, the first sheet supply device 16, the powder filling device 25, the additional filling device 28 and the second sheet supply device 17 are in the transport direction 9 located at rear positions along the endless path 10.
    [0219]
    [0220] In a further embodiment of the packaging system 1 according to the invention, the molds 8 are moved first along the additional filling device 28 and then along the powder filling device 25. In such a situation, the First sheet supply device 16, the additional filling device 28, the powder filling device 25 and the second sheet supply device 17 are in the transport direction 9 located at rear positions along the path 10.
    [0221]
    [0222] Figure 12 shows a cross-sectional view of the second sheet delivery device 17. The second heated roller 92 of the sealing unit 31 is in contact with the second sheet 6 and places the second sheet 6 on the first sheet 5 (not shown). The heat of the second heated roller 92 already takes care of part of the sealing process. The third heated roller 93 rolls on the second sheet 6 to complete the sealing process.
    [0223]
    [0224] Figures 13A-H show the operating steps that are carried out in one of the molds 8. Figure 13A shows a mold 8 of row 15 of Figure 3. Said mold 8 moves along the endless path 10 by the mold conveyor 7, more specifically the drum 40. In Figure 13B, the first sheet 5 is located on the support surface 13 of the mold 8 and on its first and second suction chambers 11, 12 by the first device sheet supply 16. After that, the first part 21 of the first sheet 5 is suctioned into the first suction chamber 11 to form the first compartment 3 of the bag 2, and the second part 22 of the first sheet 5 is suctioned in the second suction chamber 12 to form the second compartment 4 of the bag 2 (Figure 13C).
    [0225]
    [0226] The powder filling device 25 is used to fill the first compartment 3 with the powder 26. Due to the exact filling by the powder filling device 25, no dust or little dust 26 will end on the first sheet 5 located outside the first suction chamber 11. This is essential because if (too much) dust is located in the parts of the sheet that cover the support surface 13 of the mold 8, this has a negative effect on the sealing between the first and second sheets 5, 6 Good sealing is required to prevent the contents of the first compartment 3 and that of the second compartment 4 from being separated from each other and to prevent the bags from leaking from the first and second compartments 3, 4 to the outside world. In addition to this, it is essential that, during the filling of the first compartment 3, no dust (or very little) 26 ends in the second compartment 4 to avoid contamination.
    [0227]
    [0228] The additional filling device 28 is used to fill the second compartment 4 with the liquid 29 (Figure 13E).
    [0229]
    [0230] In Figure 13F, the second sheet 6 is placed on the first sheet 5 and on the powder 26 in the first compartment 3 and the liquid 29 of the second compartment 4 by the second sheet delivery device 17. The seal between the first sheet 5 and the second sheet 6 is created by the sealing unit 31 which is integrated in the second sheet supply device 17. The first cutting unit 37 and the second cutting unit 38 of the cutting device 36 subsequently make the cuts to the along the first cutting grooves 65 and the second cutting grooves 66, respectively (Figure 13G).
    [0231]
    [0232] In Figure 13H, the bag 2 containing the powder 26 in the first compartment 3 and the liquid 29 in the second compartment 4 is removed from the mold 8.
    [0233]
    [0234] Figures 14A-C show perspective views of the packaging system 1. In Figure 14A, the drum 40 is located in the operating position 82 relative to the main frame 81. In Figure 14B, the drum 40 is partially removed from the system Packaging 1. In Figure 14C, the drum 40 is completely removed from the packaging system 1. The drum drive 45 is visible. The drum drive 45 comprises a gear wheel 68 that is coupled to a gear rack 69 (see Figure 15B) provided in the drum 40. The suction device 14 is also shown.
    [0235]
    [0236] Figures 15A-B show perspective views of the drum 40. The drum 40 is only supported by the drum frame 83. The drum frame 83 comprises first coupling members 84 that can be coupled with second cooperating coupling members 85 connected to the main frame 81 when the drum 40 is placed in the operating position 82. The first and second coupled coupling members 84, 85 hold the drum 40 in the operating position 82.
    [0237]
    [0238] The drum 40 is provided with drum suction openings 54 located in a second circular configuration 43 (Figure 15B). Each drum suction opening 54 is in fluid communication with the first and second connectors of row 15 of the molds 8. In Figure 15C, the suction device 14 is also shown. The suction device 14 is located relative to the drum 40 as it would when the drum 40 is located in the operating position 82.
    [0239]
    [0240] Figures 16A and 16B show the suction device 14. The suction device 14 comprises a suction nozzle 48 which is in fluid communication with a low pressure by means of a fluid conduit 73. In use, the suction device 14 is it locates in a fixed suction position 50 relative to the drum shaft 41. The drum suction openings 54 are positioned to be received by the suction nozzle 48 when drum 40 is rotated. The first and second suction chambers 11, 12 of each row 15 of molds 8 are in fluid communication with one of the drum suction openings 54. For each row 15 of the mold 8, its suction opening 54 is located relative to the suction nozzle 48 so that said suction opening 54 is received by suction nozzle 48 after said row 15 of the molds 8 has passed the first sheet supply device 16 and before said mold has reached the powder filling device 25.
    [0241]
    [0242] As required, the detailed embodiments of the present invention are disclosed herein; however, it should be understood that the disclosed embodiments are merely exemplary of the invention, which can be incorporated in various ways. Therefore, the specific structural and functional details disclosed herein should not be construed as limiting, but simply as a basis for the claims and as a representative basis for teaching a person skilled in the art to employ the present invention in virtually Any properly detailed structure. In addition, the terms and phrases used herein are not intended to be limiting, but rather, to provide an understandable description of the invention.
    [0243]
    [0244] The terms "a" or "a", as used herein, are defined as one or more than one. The term plurality, as used herein, is defined as two or more than two. The term other, as used herein, is defined as at least one second or more. The terms that include and / or have, as used herein, are defined as comprising (ie, open language, without excluding other elements or stages). No reference sign in the claims should be considered as limiting the scope of the invention.
    [0245]
    [0246] It will be apparent to those skilled in the art that various modifications to the device and the method can be made without departing from the scope of the invention as defined in the claims.
    权利要求:
    Claims (32)
    [1]
    1. Packaging system to produce bags that have multiple compartments and made of a first water soluble sheet and a second water soluble sheet, comprising the packaging system;
    - a mold conveyor for moving multiple molds in a transport direction along an endless path, such as a circular path, in which each mold looks outward and has a first suction chamber, a second suction chamber and a support surface that surrounds and extends between the first and second suction chambers,
    - a suction device configured to suction the first sheet in the first suction chambers and in the second suction chambers, and in which the mold conveyor moves each mold along;
    - a first sheet supply device configured to place the first sheet on the support surface of the mold and on its first and second suction chambers, after which the suction device sucks a first part of the first sheet that is extends over the first suction chamber into the first suction chamber to form a first compartment of the bag and sucks a second part of the first sheet that extends over the second suction chamber into the second suction chamber to form a second compartment from the bag,
    - a powder filling device configured to fill the first compartment with a powder,
    - an additional filling device configured to fill the second compartment with an additional powder or liquid,
    - a second sheet supply device configured to place the second sheet on the first sheet and on the first full compartment and the second full compartment so that it leaves the bag containing the powder in the first compartment and the additional liquid or powder in the second compartment, and in which
    --- the powder filling device comprises:
    a housing that has a rotor chamber, a chamber inlet and a chamber outlet,
    a powder supply to supply the powder to the chamber entrance,
    a rotor that is provided in the rotor chamber and comprises multiple dosing cavities on an outer peripheral surface of the rotor, and
    a rotor drive configured to rotate the rotor around a rotor shaft in a rotor direction to receive the powder in the dosing cavities at the chamber inlet and discharge the powder from the dosing cavities at the chamber outlet.
    [2]
    2. Packaging system according to claim 1, wherein the rotor drive is configured to rotate the rotor gradually into rotor positions in which a full dosing cavity is placed in the chamber outlet.
    [3]
    3. Packaging system according to claim 1 or 2, wherein the rotor drive is configured to rotate the rotor between the rotor positions at high speed and;
    - to stop the rotation of the rotor for a predetermined period of time in the rotor positions, or
    - to move the rotor through the rotor positions at low speed.
    [4]
    4. Packaging system according to claim 3, wherein the high rotor speed is between 30 and 120 revolutions / minute, both inclusive.
    [5]
    5. Packaging system according to claim 3 or 4, wherein the low rotor speed is greater than 0 and less than 5 turns / minute.
    [6]
    6. Packaging system according to any of the preceding claims, wherein the dosing cavities are placed one after another in the rotor direction.
    [7]
    7. Packaging system according to any one of the preceding claims, wherein the chamber outlet terminates in a nozzle having a nozzle opening from which the powder is discharged and the nozzle opening is located along the endless trajectory of the mold.
    [8]
    8. Packaging system according to claim 7, wherein the powder filling device is configured to discharge the powder only when the first mold compartment is oriented towards the nozzle opening.
    [9]
    9. Packaging system according to claim 7 or 8, wherein the powder filling device is configured to discharge the powder only when the first mold compartment is located just below the nozzle opening.
    [10]
    10. Packaging system according to any one of claims 7-9, wherein the nozzle opening is located at a nozzle distance between 0.5 and 10 mm, inclusive, from a virtual plane extending through the support surface of the mold when the powder is discharged into the first compartment.
    [11]
    11. Packaging system according to any one of claims 7-10, wherein the chamber outlet extends from the rotor chamber to the nozzle opening and comprises an output volume that is equal to or greater than the volume of cavity of a single dosage cavity.
    [12]
    12. Packaging system according to claim 11, wherein the cavity volume of each dosing cavity is between 5 and 30 cm3, both inclusive.
    [13]
    13. Packaging system according to any one of the preceding claims, wherein the chamber outlet extends downward, preferably in a substantially vertical direction or a vertical direction.
    [14]
    14. Packaging system according to any one of the preceding claims, wherein the rotor chamber is defined by a chamber surface and the outer peripheral surface of the rotor is located at a rotor distance from the chamber surface.
    [15]
    15. Packaging system according to claim 14, wherein the rotor distance is between 0.05 and 0.6 mm, inclusive.
    [16]
    16. Packaging system according to any one of the preceding claims in combination with claim 7, wherein the powder filling device comprises a nozzle member forming the chamber outlet and the nozzle opening, and the member Nozzle is attached to the housing so that it pushes against the rotor.
    [17]
    17. Packaging system according to claim 16, wherein the nozzle member is mounted in the housing with clearance and at least one elastic member, such as a spring or a rubber member, is provided which pushes the member of nozzle against the rotor.
    [18]
    18. Packaging system according to claim 17, wherein the clearance of the nozzle member is comprised between 0.3 and 5 mm, inclusive.
    [19]
    19. Packaging system according to any one of claims 16 18, wherein the nozzle member pushes against the outer peripheral surface of the rotor.
    [20]
    20. Packaging system according to any one of the preceding claims, wherein the chamber outlet is defined by an outlet surface that is made of polytertafluoroethylene (Teflon).
    [21]
    21. Packaging system according to any one of the preceding claims, wherein the molds are moved first along the powder filling device and then along the additional filling device.
    [22]
    22. Packaging system according to any one of the preceding claims, wherein the first sheet delivery device, the powder filling device, the additional filling device and the second sheet supply device are in the direction of transport located in later positions along the endless path.
    [23]
    23. Packaging system according to any one of claims 1 to 20, wherein the molds move first along the additional filling device and then along the powder filling device.
    [24]
    24. Packaging system according to any one of claims 1 -20, 23, wherein the first sheet supply device, the additional filling device, the powder filling device and the second sheet supply device they are in the transport direction located at the rear positions along the path.
    [25]
    25. Packaging system according to any one of the preceding claims, wherein:
    - the mold conveyor is configured to move multiple rows of molds in the direction of transport along the endless path,
    - the packaging system comprises a row of powder filling devices, and
    - the rotors of the powder filling devices are interconnected and are all driven by the same rotor drive.
    [26]
    26. Packaging system according to claim 25, wherein the housings of the powder filling devices are formed and mounted separately one after the other along the interconnected rotors.
    [27]
    27. Packaging system according to any one of the preceding claims, wherein the first sheet supply device, the powder filling device, the additional filling device and the second sheet supply device are located in positions fixed along the endless path.
    [28]
    28. Packaging system according to any one of the preceding claims, wherein the second sheet supply device comprises a sealing unit for interconnecting the first sheet and the second sheet.
    [29]
    29. Packaging system according to any one of the preceding claims, wherein the packaging system comprises a cutting device configured to cut the first interconnected sheet and the second sheet to form separate bags.
    [30]
    30. Packaging system according to any one of the preceding claims, wherein the mold conveyor moves the molds at a constant speed along the endless path.
    [31]
    31. Packaging system according to any one of the preceding claims, wherein the mold conveyor comprises a drum that can rotate around a drum axis and that keeps the molds in a circular configuration around the drum axis, and a drum drive configured to rotate the drum in the direction of the conveyor around the drum shaft to move the molds along the endless path.
    [32]
    32. Packaging system according to claim 31, wherein:
    - the packaging system comprises a main frame that supports the first sheet supply device, the powder filling device, the additional filling device and the second sheet supply device,
    - the drum moves the molds along the endless path when it is placed in an operating position relative to the main frame, and
    - the drum is supported by a drum frame that can be coupled to the main frame to place the drum in the operating position and can be decoupled from the main frame to remove the drum from the packaging system.
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    同族专利:
    公开号 | 公开日
    EP3609789A1|2020-02-19|
    ES2731236B2|2021-05-07|
    WO2018190708A1|2018-10-18|
    NL2018707B1|2018-10-24|
    US20210163160A1|2021-06-03|
    CA3057426A1|2018-10-18|
    EP3609789B1|2021-09-01|
    ES2731236R1|2020-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3038282A|1960-07-05|1962-06-12|American Cyanamid Co|Capsules of soft plastic containing granules|
    JPS5217998A|1975-06-24|1977-02-10|Hayashida Kikai Kogyo Kk|Lumpy or powdered material filling method and device therefor|
    JP5127303B2|2007-05-30|2013-01-23|京セラ株式会社|Feed roll and granular material supply device using the same|
    JP2016520483A|2013-04-19|2016-07-14|リデュー マシーナリー インク|Creating a water-soluble pouch|
    JP5850448B1|2015-04-07|2016-02-03|株式会社プラスワンテクノ|枡 Weighing device and 枡 weighing and conveying system provided with the same|
    CA2943138A1|2015-09-25|2017-03-25|Multi-Pack Solutions, LLC|Packaging machine with independently controllable movers|CN111332538B|2020-03-19|2021-12-21|佛山市金银河智能装备股份有限公司|Accurate cutting device of sizing material|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    NL2018707A|NL2018707B1|2017-04-13|2017-04-13|Packaging system for producing pouches|
    PCT/NL2018/050221|WO2018190708A1|2017-04-13|2018-04-10|Packaging system for producing pouches|
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