EP1245492A1 - Procédé et dispositif pour insérer des sachets dans des éléments de retenue - Google Patents

Procédé et dispositif pour insérer des sachets dans des éléments de retenue Download PDF

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Publication number
EP1245492A1
EP1245492A1 EP02007135A EP02007135A EP1245492A1 EP 1245492 A1 EP1245492 A1 EP 1245492A1 EP 02007135 A EP02007135 A EP 02007135A EP 02007135 A EP02007135 A EP 02007135A EP 1245492 A1 EP1245492 A1 EP 1245492A1
Authority
EP
European Patent Office
Prior art keywords
bag
retainer
guide members
plug
mouth
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Withdrawn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
EP02007135A
Other languages
German (de)
English (en)
Inventor
Shinichi Hiramoto
Shoji Tsutsui
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.)
Toyo Jidoki Co Ltd
Original Assignee
Toyo Jidoki 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 Toyo Jidoki Co Ltd filed Critical Toyo Jidoki Co Ltd
Publication of EP1245492A1 publication Critical patent/EP1245492A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B65B43/34—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure
    • B65B43/36—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure applied pneumatically
    • 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
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/50—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using rotary tables or turrets
    • 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
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/54—Means for supporting containers or receptacles during the filling operation

Definitions

  • the present invention relates to a method and apparatus for successively inserting empty bags into retainers in a retainer type bag-filling packaging system.
  • bag mouth(s) the mouth of bags
  • plugs are brought into the opened bag mounts
  • the plugs are then lowered so that the bags are inserted into retainers that are positioned below, and then, the bags are completely opened including the bottom areas inside the retainer by way of blowing compressed air into the bags from the plugs.
  • a retaining section and a pair of insertion grooves are formed inside the retainers and extend in the longitudinal orientation.
  • the retaining section is an empty space closed at the bottom and has a cross section that can receive the body portion of a self-standing bag after the opening of the bag by suction-chucking members.
  • the insertion grooves are formed so as to receive both side edge portions of the self-standing bag. These insertion grooves are symmetrically provided on both (left and right) sides of the retaining section.
  • the insertion grooves are formed with a fairly narrow width (so that there is little play between the groove surfaces and the bag surface). Accordingly, when a bag is inserted into the insertion grooves from above, insertion mistakes may occur. The reason for this is that if a bag is warped, or if the attitude of a bag is inclined at the time of insertion, the bottom edge of the bag would deviate from positions directly above the insertion grooves, so that the bottom edge (lower end) of the bag catch on the edges of the retainer when the bag is lowered.
  • the entry portion of the insertion grooves formed in a retainer is formed with a greater width (i.e., the areas in the vicinity of the entry portion are formed with a tapered shape) so that the bag can be inserted into the grooves even if the bag is somewhat warped.
  • warping may occur when the bag mouth is opened by the suction-chucking members even though the bag is not warped to begin with. Moreover, when the mouth of a bag that is warped is opened, the warping of the lower portion of the bag may be increased even further.
  • the retaining section and insertion grooves can be formed with an increased depth, thus fulfilling both functions described above.
  • this deep hole and groove structure has its own problem.
  • the size of the retainer in the longitudinal direction increases, and the weight of the retainer also increases. Since the retainers are intermittently or continuously conveyed, it is desirable that the retainers be as small and light as possible. This is desired even stronger when the retainers are conveyed at a high speed.
  • the bag when plug is inserted and pushed into the bag mouth, the bag may tilt in the direction of width, causing a positional deviation.
  • a discrepancy occurs between the center of the retaining section and the center of the bag; and the contact between the bag surface and the inside circumferential surface of the retaining section may drop when the bag is opened up to the bottom after being inserted into the retainer.
  • the problem of swinging of the bags following filling with a liquid would occur, so that the liquid splashes out of the bag.
  • the present invention is to solve the above-described problems that occur when bags whose mouths have been opened are inserted into retainers.
  • the bag mouth is opened by the suction-chucking members after the bag has been positioned by the guide members with respect to the grooves formed in the retainer.
  • the suction-chucking members By thus positioning the bags beforehand by means of the guide members, the suction-chucking members always perform suction chucking on specified positions on the bag. Also, warping of the bag surfaces caused by the opening action of the bag mouth by the suction-chucking members can be suppressed.
  • each insertion assembly is comprised of, for instance, suction-chucking members, guide members, a plug, and a plurality of sets of such insertion assemblies are continuously conveyed.
  • suction-chucking members for instance, suction-chucking members, guide members, a plug
  • a plurality of sets of such insertion assemblies are continuously conveyed.
  • a plurality of sets of insertion assemblies each comprising the guide members; suction-chucking members and plug are continuously conveyed over an annular path at a constant speed and uniform intervals, the retainers are conveyed over a specified path at the same speed and same interval; and in at least portions of the paths, retainers and bags are conveyed in a state in which the retainers and bags are vertically aligned.
  • the bags can be inserted into the retainers while the bags and retainers are continuously conveyed.
  • the above objects are accomplished by a unique structure for a rotary type bag insertion apparatus that receives a supply of bags and retainers, inserts the bags into the retainers and then discharges the bags together with the retainers.
  • the rotary type bag insertion apparatus of the present invention includes:
  • the above rotary type bag insertion apparatus may further includes a receiving stand which supports the lower end of the bag and is disposed along a track of revolution of the guide members.
  • This receiving stand extends from at least a bag supply position to a plug insertion position on a circumference of a rotor beneath the guide members.
  • the plug is provided with a gas discharge opening.
  • the bottoms of the self-standing bags can be spread opened by blowing a compressed gas into the bag after the bag is inserted into the retainers.
  • FIGS 1 and 2 show, in terms of a time sequence, how self-standing bags which are conveyed continuously at a constant speed with their mouths (called “bag mouth(s)”) facing upward are inserted into the insertion grooves of retainers that are vertically aligned beneath the bags and moved at the same speed in the horizontal plane.
  • the conveying path in Figures 1 and 2 is rectilinear. However, it can take an annular (e.g., circular) shape.
  • a plurality of sets of insertion assemblies each substantially comprising, as seen from Figure 1, a pair of guide members 3 and 4, a pair of suction-chucking members (suction disks) 5 and 6 and a plug 7 are continuously conveyed over a specified conveying path at equal intervals.
  • a plurality of retainers are continuously conveyed at the same intervals beneath these sets of insertion assemblies. The respective sets and retainers thus successively perform the insertion of the bags into the retainers.
  • the guide members 3 and 4 are formed with guide grooves 3a and 4a respectively, and these guide grooves 3a and 4a face each other.
  • the guide grooves 3a and 4a have a cross-sectional V shape when viewed from above and perpendicularly oriented in the vertical direction.
  • the guide members 3 and 4 are moved toward each other and away from each other, thus opening and closing in the horizontal direction more or less along the conveying path.
  • the pair of suction disks 5 and 6 are moved toward and away from each other, thus opening and closing on the vertical plane perpendicular to the conveying path.
  • the plug 7 is raised and lowered between the pair of guide members 3 and 4 and between the pair of suction disks 5 and 6.
  • Each of the retainers 2 has a retaining section 8 at the center and a pair of insertion grooves 9 (see step (f) shown in Figure 2) that are located on both sides of the retaining section 8.
  • the retaining section 8 (a main interior space of substantially cylindrical that receives the main body portion of a bag) and the insertion grooves 9 (subordinate interior spaces that receive the side edges of the bag) are formed in a longitudinal orientation and extend in the vertical direction.
  • the retainers 2, that can be made of any appropriate materials including a metal, synthetic resins, etc., are positioned and continuously conveyed so that the insertion grooves 9 are oriented along the conveying path as seen from Figure 2.
  • the direction of width of the bag 1 is oriented parallel to the bag conveying path that is shown by laterally elongated rectangle P in Figure 1.
  • step (a) the guide members 3 and 4 and suction disks 5 and 6 are respectively separated so as to be in an open state, the plug 7 is in the raised position, and the bag 1 is supplied to a center position between the facing guide grooves 3a and 4a of the guide members 3 and 4.
  • the retainer 2 supplied by a retainer supply means (not shown) is positioned beneath the bag 1 so as to be in a vertically aligned position with respect to the bag 1.
  • the bag 1 and insertion grooves formed in the retainer are in a parallel relationship, and the center of the bag with respect to its width direction and to its thickness direction coincide with the centers of the insertion grooves and retaining section of the retainer. Keeping this aligned positions, the bag 1, the retainer 2, the guide members 3 and 4, the suction disks 5 and 6 and the plug 7 are conveyed from left to right in Figure 1 at the same and constant speed.
  • the plug 7 is, with a timing that matches this movement of the suction disks 5 and 6, lowered, and a part of the plug 7 is brought into the opened bag; and thus, the plug 7 is engaged with the mouth.
  • the receiving stand 11 ends at the finishing point of step (d). In other words, the step (d) is completed at the end of the received stand 11.
  • the plug 7 is further lowered so as to lower the bag 1 toward the retainer 2.
  • the guide members 3 and 4 are also lowered.
  • the lowering of the guide members 3 and 4 is not essential; however, by lowering the guide members 3 and 4 together with the bag 1, the flat lower end of the bag 1 is oriented more accurately toward the centers of the insertion grooves of the retainer 2.
  • the bag 1 is guided by the guide grooves 3a and 4a of the guide members 3 and 4 and is inserted, at its side edges, into the centers of the insertion grooves 9 of the retainer 2.
  • the bag 1 is set in the retainer 2 so that the center of the bag 1 with respect to the direction of width thereof is positioned in the centers of the retaining section 8 and insertion grooves 9 of the retainer 2. Accordingly, the center of the retaining section 8 and the center of the bag 1 are kept coincide with each other even after the bag has been spread open. Thus, a tight contact is ensured between the surfaces of the bag and the inside circumferential surface of the retaining section 8.
  • the guide members 3 and 4 and plug 7 are returned to their original positions, so that the process returns to the state shown in step (a), thus completing one cycle of insertion of the bag into the retainer.
  • a main stand 13 is installed in an upright attitude on a base 12, and a rotating shaft 14 is rotatably supported in the main stand 13.
  • An upper table 15 is fastened to the upper portion of the rotating shaft 14, and a lower table 17 is rotatably supported on the circumference of the main stand 13 via a bearing 16.
  • the rotating shaft 14 and tables 15 and 17 are referred to as a rotor in the present invention.
  • a plurality of supporting frames 18 that are substantially C-shaped in cross section are provided at equal intervals.
  • the supporting frames 18 extend in the vertical direction; and the upper ends of the supporting frames 18 are fastened to the upper table 15, and the lower ends are fastened to the lower table 17.
  • An opening device 21 is provided in the upper portion of the outer circumferential surface of each one of the supporting frames 18 via an attachment plate 19.
  • a retainer positioning member 22 (see Figure 9) is provided in the lower portion of the outer circumferential surface of each one of the supporting frames 18.
  • a retainer supporting plate 24 is provided at the lower end of each one of the supporting frames 18 via a supporting plate 23.
  • slots 25 and 26 are respectively formed in the outer circumferential surface of each supporting frame 18.
  • a connecting member 28 of an upper raising-and-lowering element 27 extends to the outside from the interior of the supporting frame 18 through the slot 25, and an insertion device 29 is provided on the tip end of the connecting member 28.
  • upper slide members 34 are attached to the upper raising-and-lowering element 27 in an outward-facing orientation.
  • the upper slide members 34 slide on a slide rail 35 that is fastened to the supporting frame 18.
  • a cam roller 36 is disposed on the inside end of the upper raising-and-lowering element 27, and a tubular raising-and-lowering cam 38 is disposed on the circumference of a cam attachment plate 37 which is fastened to the main stand 13.
  • the cam roller 36 runs on this raising-and-lowering cam 38.
  • lower slide members 39 are attached to the lower raising-and-lowering element 31 in an outward-facing orientation, and these slide members 39 slide on the slide rail 35.
  • a cam roller 41 is disposed on the inside end of the lower raising-and-lowering element 31. The cam roller 41 runs inside the groove of a raising-and-lowering cam 42.
  • the reference numeral 43 seen in Figures 4A and 4C is a tension spring.
  • the tension spring 43 extends vertically through holes 44 and 45 formed in the upper and lower raising-and-lowering elements 27 and 31 and presses the cam roller 36 against the raising-and-lowering cam 38.
  • the insertion device 29 is comprised, along with other elements, of a supporting flange 46 which is fastened to the connecting member 28 of the upper raising-and-lowering element 27, a pipe-form rod element 47 that is slidably provided in this supporting flange 46, and a plug 7 which is provided at the tip end of the rod element 47.
  • One end (upper end) of the rod element 47 is connected to a compressed air source or gas supply source via a filter, a switching valve, etc. (not shown), so that a compressed gas is caused to jet out of a gas discharge opening opened at the lower end of the plug 7 at a specified timing.
  • the rod element 47 is provided so that when an upward-oriented force referred to by arrow U is applied to the plug 7, the rod element 47 is caused to retract or moved upward relative to the supporting flange 46 by the action of a stopper 48 fastened to the rod element 47, a spring receiving plate 49 and a compression spring 50 which is interposed between the spring receiving plate 49 and the supporting flange 46.
  • the guide device 33 is provided, as seen from Figure 5A, at the tip end of the connecting member 32 of the lower raising-and-lowering element 31.
  • the guide device 33 is comprised of guide members 3 and 4 which have substantially V-shaped grooves 3a and 4a (see Figure 8), which extend in the vertical direction, and an opening-and-closing mechanism that opens and closes the guide members 3 and 4.
  • the guide members 3 and 4 are respectively attached to an opening-and-closing driving arm 51 and an opening-and-closing driven arm 52.
  • the opening-and-closing driving arm 51 is fastened to a hollow shaft 54 which is supported on a supporting member 53 on the tip ends of the connecting members 32 so that the hollow shaft 54 is free to rotate.
  • the opening-and-closing driven arm 52 is likewise fastened to an opening-and-closing driven shaft 55 which is fastened to the supporting member 53 so that the shaft 55 is free to rotate.
  • Gears 56 and 57 which engages with each other are respectively fastened to the lower portions of the hollow shaft 54 and opening-and-closing driven shaft 55, so that the opening-and-closing driving arm 51 and the opening-and-closing driven arm 52 open and close (or moved toward and away from each other) simultaneously.
  • a slide bearing 58 that has longitudinal grooves formed in its inside circumferential surface is fastened to the lower portion of the hollow shaft 54.
  • An opening-and-closing driving shaft 59 which has longitudinal ribs formed on its outer circumferential surface, is inserted into the slide bearing 58. With its longitudinal ribs being engaged with the longitudinal grooves, the shaft 59 slides upward and downward as shown by arrow in Figure 5.
  • the opening-and-closing driving shaft 59 is rotatably supported at its lower end area by a bearing 61 that is attached to the supporting plate 23.
  • a swing lever 62 is fastened to the lower end of the opening-and-closing driving shaft 59, and this swing lever 62 is connected to one end 64a of a cam lever 64 via a connecting rod 63.
  • the cam lever 64 is shaft-supported on a supporting part 65 so that the cam lever 64 can pivot, and a cam roller 66 is attached to another end of the cam lever 64.
  • the cam roller 66 is pressed by the driving force of a tension spring 67 (see Figure 5B) against an annular cam 68 which is disposed on the base 12 (see Figure 3), so that the cam roller 66 runs over the upper surface of the annular cam 68.
  • the opening device 21 is mounted on the attachment plate 19; and it includes, as seen from Figures 10 and 11, suction disks 5 and 6 and a mechanical assembly that operates the suction disks 5 and 6.
  • the suction disks 5 and 6 are respectively attached to the lower ends of pipe-form opening-and-closing arms 71 and 72 as best seen from Figure 10.
  • the opening-and-closing arms 71 and 72 are respectively attached to pivot levers 73 and 74 which are pivotally shaft-supported on the attachment plate 19.
  • Open ends at the upper ends of the opening-and-closing arms 71 and 72 are connected to a vacuum means via filters, switching valves, etc. (not shown), so that the suction disks 5 and 6 apply suction on a bag with a specified timing.
  • a cam roller 75 is rotatably mounted on one end of the pivot lever 73.
  • the cam roller 75 is pressed by the force of a tension spring 76 against an opening-and-closing cam 77.
  • the opening-and-closing cam 77 is disposed in the form of a circular arc on the circumference of the rotor, so that the cam roller 75 runs along the undersurface of the opening-and-closing cam 77.
  • a connecting link 78 is pin-connected between the other end of the pivot lever 73 and the pivot lever 74.
  • the pivot lever 74 also simultaneously pivots in the opposite direction, thus causing the opening-and-closing arms 71 and 72 to move toward and away from each other so as to open and close as indicated by the solid lines (closed) and imaginary dashed lines (opened) in Figure 10.
  • the reference numeral 79 in Figures 10 and 11 is a stopper that regulates the pivoting limit of the pivot lever 74, i.e., the opening limit of the opening-and-closing arms 71 and 72.
  • bags 1 are supplied by a bag supply means (not shown, but such a supply means shown in the rotary type transfer apparatus disclosed in Japanese Patent Application Laid-Open (Kokai) No. 2000-318713), and retainers 2 are supplied by a universally known retainer supply means.
  • a bag supply means not shown, but such a supply means shown in the rotary type transfer apparatus disclosed in Japanese Patent Application Laid-Open (Kokai) No. 2000-318713
  • retainers 2 are supplied by a universally known retainer supply means.
  • Figure 12 shows the above-described rotary type insertion apparatus with an addition of a mechanism that allows adjustment of the opening width of the guide members 3 and 4 so as to comply with bags of various sizes.
  • the annular cam 68 is adjustable in height.
  • the annular cam 68 is fastened to the outer circumference of an annular attachment bracket 81, and a plurality of internally threaded members 82 are disposed around the circumference of the annular attachment member 81.
  • Rotating shafts 84 which are rotatably supported on stands 83 that are disposed on the base 12 are screw-engaged with the internally threaded members 82, thus supporting the attachment bracket 81 in a horizontal attitude.
  • Gears 85 are attached to the lower ends of the rotating shafts 84.
  • the gears 85 are engaged with the outer circumference of an intermediate gear 86 which is rotatably attached to the circumference of the rotating shaft 14.
  • a sprocket 87 is attached to one of the gears 85.
  • the sprocket 87 is connected via a chain 88 and sprocket 89 to a rotating shaft 92 that is rotatably supported in a stand 91 disposed on the base 12.
  • the height of the annular cam 68 is adjusted in accordance with the bag width; and when the bags to be processed have a large width, then the annular cam 68 is lowered.
  • Figure 13 shows (in the form of a time sequence) the bag insertion process performed with a use of plug 94 shown in Figures 14A through 14C instead of the plug 7 that is shown in Figures 1 and 2.
  • each plug 94 has three (first, second and third) stepped portions 94a, 94b and 94c that are continuously formed with inclined surfaces in between, the inclined surfaces having more or less a shape of truncated circular cones.
  • the first stepped portion 94a (located at the lower most or the bottom of the plug 94 and has a smallest diameter) has flat outer surfaces 94e that are diametrically opposite from each other.
  • the first stepped portion 94a is somewhat flat when viewed from below; and its lower end is pointed and faces downward (or to face the bag mouth), so that the flat outer surfaces 94e are set so as to be parallel to the surfaces of the bag or to the conveying path.
  • the plug 94 has a gas discharge opening 94d at the end of this first step portion 94a.
  • the insertion process of Figure 13 is substantially the same as that of Figures 1 and 2 up to the point where the tip end of the plug 94 is brought into the bag. Accordingly, only the steps that are taken after the bag has been inserted into the retainer (that corresponds to steps (d) through (g) in Figure 1) are shown in Figure 13.
  • the insertion process of a bag into a retainer in Figure 13 is as follows:
  • the tip end of the plug (the first stepped portion 94a) that is brought into the bag when the bag mouth is opened by the suction disks is in a flattened shape. Accordingly, the bag returns to flat when the suction disks are separated from the bag, allowing less inclination at both edges of the mouth thereof. Accordingly, the bag being processed show less of a tendency to incline to the left and right in the guide members than in the previous example shown in Figures 1 and 2 in which the plug 7 used has no flat outer surfaces 94e and thus not in a flattened shape at its tip end. Accordingly, an even more accurate guidance of the bag is accomplished with the use of the plug 94.
  • the lower end of a bag 1 is horizontal when the bag 1 is flat.
  • both edges of the bag are slightly lifted as indicated by arrows in Figure 16B, and the lower ends of the bag 1 is curved when viewed from the side as shown in Figure 16B.
  • the bag 1 becomes unstable inside the retainer, and the bag may be tilted or may show a positional deviation to the left or right during conveying.
  • a drainage hole that has a diameter much smaller than that of the retaining section is formed in the center of the bottom of the retaining section as disclosed in, for example, Japanese Patent Application Laid-Open (Kokai) No. 2000-302106.
  • the retainer 95 shown in Figures 17A and 17B is the same as a conventional retainer in that it has a retaining section 8 and insertion grooves 9 that extend longitudinally or in the axial direction.
  • the feature of the retainer 95 is that the insertion grooves 9 has bottoms 9a thus being closed, but the retaining section 8 has no bottom thus being opened.
  • the edge portions of the lower end of the bag 1 inserted in the retaining section 8 and insertion grooves 9 are supported by the bottoms 9a of the insertion grooves 9, and the curved central portion of the bag is not supported. Accordingly, the bag 1 inside the retainer 2 is set with a higher stability.
  • the retainer 96 shown in Figures 18A and 18B is also the same as a conventional retainer.
  • the retainer 96 has a retaining section 8 and insertion grooves 9 that extend longitudinally or in the axial direction, and a drainage hole 96a which is slightly smaller than the retaining section 8 in diameter is formed in the bottom.
  • this retainer 96 is characterized in that the entire bottom surface 96b of the retaining section 8 and insertion grooves 9 is curved in a concave shape. It is preferable that this curvature more or less coincide with the lower end curvature of the bag, so that the lower end of the bag 1 is snugly supported.
  • the retaining section 8 can be formed without a bottom as in the retainer 95 shown in Figures 17A and 17b.
  • the retainer 97 shown in Figures 19A and 19b is also the same as a conventional retainer in terms of the longitudinal or axial formation of the retaining section 8 and insertion grooves 9.
  • the retainer 97 is characterized in that the bottom of the retaining section 8 is formed only at the left and right ends, i.e., near the insertion grooves 9, and no bottom is formed in the central area.
  • This structure is similar to that of the retainer 95 shown in Figures 17A and 17B in terms of structure and function. Also, the entire bottom can be curved in the same manner as in the retainer 96 of Figures 18A and 18B.
  • the entry portions of the retaining section 8 and insertion grooves 9 are not tapered; nevertheless, a stable and accurate insertion of bags is assured in the present invention since the positioning of both side edges of each bag is made by guide members, so that the side edges are guided into the retainer.
  • the entry portions of the retainers 95, 96 and 97 can be formed with a tapered shape as in conventional retainers. However, because of the use of the guide members, the size of the tapered portion can be made smaller than in the conventional retainers.
  • the bag holding function can be improved at the same longitudinal size of the retainer, or the longitudinal size of the retainer can be reduced by an amount equal to the taper with the same bag holding function being maintained.
  • the retainer can be made more compact and light-weight.
  • the left and right ends of the insertion grooves 9 are closed in all cases (these parts are called the "retainer sides") as typically indicate in Figure 17A by the reference numerals 9b.
  • these retainer sides are important for preventing tilting and positional deviation since the retainer sides come in contact with both side edges of the bags 1.
  • positioning is securely accomplished by the guide members. Accordingly, these retainer sides can be omitted.
  • the left and right outside portions indicated by arrows in Figures 17A, 18A and 19A can be removed. By doing this, the size of the retainer in the lateral direction is reduced, and the retainer can be more compact and light in weight.
  • bags whose mouths have been opened are inserted into the retaining sections and insertion grooves of retainers without any interference. Furthermore, in the present invention, since the bags are inserted into the centers of the retaining sections and insertion grooves of the retainers, the centers of the retaining sections and the centers of the bags coincide, and the contact between the bags and the inside circumferential surfaces of the retaining sections after the bags have been spread open by gas is improved. As a result, swinging of the bags and splashing out of the liquid contents after the bags have been filled with a liquid can be effectively prevented.
  • compact, light weight retainers are used. This is advantageous for increasing the running speed of the bag insertion apparatus and therefore for increasing the running speed of the entire system that involves the bag-filling apparatus.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
EP02007135A 2001-03-29 2002-03-28 Procédé et dispositif pour insérer des sachets dans des éléments de retenue Withdrawn EP1245492A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001096221A JP2002293306A (ja) 2001-03-29 2001-03-29 リテーナへの袋の挿入方法及び挿入装置
JP2001096221 2001-03-29

Publications (1)

Publication Number Publication Date
EP1245492A1 true EP1245492A1 (fr) 2002-10-02

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Application Number Title Priority Date Filing Date
EP02007135A Withdrawn EP1245492A1 (fr) 2001-03-29 2002-03-28 Procédé et dispositif pour insérer des sachets dans des éléments de retenue

Country Status (3)

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US (1) US20020170276A1 (fr)
EP (1) EP1245492A1 (fr)
JP (1) JP2002293306A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1770018A1 (fr) * 2005-10-03 2007-04-04 Toyo Jidoki Co., Ltd. Machine d'emballage pour remplir des sacs.
EP1862389A1 (fr) * 2006-06-02 2007-12-05 Toyo Jidoki Co., Ltd. Appareil et procédé pour désengager des éléments de fermeture automatique à glissière d'un sac d'emballage avec fermeture automatique à glissière
CN109204953A (zh) * 2017-06-30 2019-01-15 杭州威士德灵智科技有限公司 一种自动插袋机

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ES2422831B1 (es) * 2012-03-09 2014-07-01 Bossar Packaging, S.A. Alimentador de bolsas preformadas para envasadoras
JP6371746B2 (ja) * 2015-09-16 2018-08-08 株式会社田中衡機工業所 穀物パック体製造装置及び穀物パック体の製造方法
CN107662726B (zh) * 2016-07-28 2024-03-22 福建鑫天宏电子科技有限公司 茶叶包装机
CN117120336A (zh) * 2021-04-28 2023-11-24 株式会社德山 夹具及多晶硅装箱体的制造方法
WO2022230555A1 (fr) * 2021-04-28 2022-11-03 株式会社トクヤマ Gabarit et procédé de fabrication d'un corps en caisson de silicium polycristallin

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EP1035022A1 (fr) * 1999-03-11 2000-09-13 Toyo Jidoki Co., Ltd. Dispositif d'alimentation continu pour récipients dans un système de remplissage et d'emballage continu, et système de remplissage et d'emballage continu
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US4473989A (en) * 1980-10-17 1984-10-02 Toyo Seikan Kaisha, Ltd. Method, a line and a pouch supporting base for automatically filling up and sealing pouches at high speed
JP2000042630A (ja) 1998-07-31 2000-02-15 Miyazaki Iron Works Ltd 下取式線材巻取機
JP2000142630A (ja) * 1998-11-10 2000-05-23 Shikoku Kakoki Co Ltd 袋状容器の供給装置
JP2000302106A (ja) 1999-02-15 2000-10-31 Toyo Jidoki Co Ltd 袋詰め包装機に供給する自立型包装袋のリテーナ
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EP1770018A1 (fr) * 2005-10-03 2007-04-04 Toyo Jidoki Co., Ltd. Machine d'emballage pour remplir des sacs.
EP1862389A1 (fr) * 2006-06-02 2007-12-05 Toyo Jidoki Co., Ltd. Appareil et procédé pour désengager des éléments de fermeture automatique à glissière d'un sac d'emballage avec fermeture automatique à glissière
CN109204953A (zh) * 2017-06-30 2019-01-15 杭州威士德灵智科技有限公司 一种自动插袋机

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