WO2024154389A1 - 包装機械における搬送装置 - Google Patents

包装機械における搬送装置 Download PDF

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Publication number
WO2024154389A1
WO2024154389A1 PCT/JP2023/035089 JP2023035089W WO2024154389A1 WO 2024154389 A1 WO2024154389 A1 WO 2024154389A1 JP 2023035089 W JP2023035089 W JP 2023035089W WO 2024154389 A1 WO2024154389 A1 WO 2024154389A1
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WO
WIPO (PCT)
Prior art keywords
path
container holder
container
packaging machine
guide
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.)
Ceased
Application number
PCT/JP2023/035089
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
義広 酒井
翔太 大塚
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.)
Shikoku Kakoki Co Ltd
Original Assignee
Shikoku Kakoki 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 Shikoku Kakoki Co Ltd filed Critical Shikoku Kakoki Co Ltd
Priority to JP2024571615A priority Critical patent/JPWO2024154389A1/ja
Priority to KR1020257026796A priority patent/KR20250135259A/ko
Priority to CN202380091468.3A priority patent/CN120530070A/zh
Publication of WO2024154389A1 publication Critical patent/WO2024154389A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G54/00—Non-mechanical conveyors not otherwise provided for
    • B65G54/02—Non-mechanical conveyors not otherwise provided for electrostatic, electric, or magnetic
    • 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
    • B65B43/60—Means for supporting containers or receptacles during the filling operation rotatable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
    • B65G21/22—Rails or the like engaging sliding elements or rollers attached to load-carriers or traction elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G35/00—Mechanical conveyors not otherwise provided for
    • B65G35/08—Mechanical conveyors not otherwise provided for comprising trains of unconnected load-carriers, e.g. belt sections, movable in a path, e.g. a closed path, adapted to contact each other and to be propelled by means arranged to engage each load-carrier in turn

Definitions

  • the present invention relates to a conveying device used to convey container holders in a packaging machine that is equipped with a filling device that fills a plurality of containers with contents such as liquid food, beverages, etc. into the containers while sequentially conveying the containers in a predetermined direction while held by a plurality of container holders, and/or a sealing device that seals the containers.
  • a conveying device used to convey container holders in a packaging machine that is equipped with a filling device that fills a plurality of containers with contents such as liquid food, beverages, etc. into the containers while sequentially conveying the containers in a predetermined direction while held by a plurality of container holders, and/or a sealing device that seals the containers.
  • the left side of Fig. 1 is referred to as "front” and the right side as “rear,””left and right” refer to left and right when viewed from the front, and “up and down” refers to top and bottom in Fig. 1.
  • the inside (below the upper path and above the lower path) is referred to as the "inside,” and the outside (above the upper path and below the lower path) is referred to as the “outside,” and the top and bottom of fixed members such as a stator and motor cover arranged along the running path, and members such as a movable member and container holder that are turned upside down as they move along the running path, are referred to as "inside and outside” rather than "up and down.”
  • a well-known conveying device in a packaging machine is one that is equipped with an endless traveling path consisting of an upper path, a lower path, a first reversing path that reverses from the upper path to the lower path, and a second reversing path that reverses from the lower path to the upper path, a number of container holders that hold containers with their openings facing outward when moving along the upper path, and a conveyor chain that acts as a drive device for moving the multiple container holders (Patent Document 1).
  • Patent Document 2 a conveying device for a packaging machine
  • Patent Document 3 a linear motor drive device consisting of a stator equipped with an electromagnetic coil and multiple movers equipped with magnets in place of a conveyor chain
  • Patent Document 2 solves the biggest problem with conveyor chains, but because the left and right ends of the front side of the container holder are configured with protruding contact surfaces that come into contact when pushing out the previous container holder, there is a problem in that these contact surfaces can be worn down and cause misalignment of the left and right contact, which can lead to transport problems such as meandering.
  • this invention aims to provide a conveying device for a packaging machine that uses a linear motor drive device and makes it possible to obtain the propulsion force that is inherent to linear motor drive.
  • the present invention comprises the following aspects:
  • the guide includes an upper path guide member that supports the inside of the container holder when the container holder moves along the upper path, a lower path guide member that supports the outside of the container holder when the container holder moves along the lower path, a first inversion path outer guide member that supports the outside of the container holder when the container holder is transferred from the upper path to the lower path along the first inversion path, and a second inversion path outer guide member that supports the outside of the container holder when the container holder is transferred from the lower path to the upper path along the second inversion path, in the conveying device in the packaging machine of 1) above.
  • a conveying device in a packaging machine as described above in 2) in which the container holder is provided with a rotating member that makes rotating contact with the guide at a position corresponding to the guide.
  • the container holder is connected to an outer surface of the movable member,
  • a top waterproof cover is provided on the outside of the container holder to prevent water from entering from the outside.
  • Waterproof side covers are provided on the left and right sides of the movable member and the stator to prevent water from entering from the outside.
  • a first groove portion that opens outward is formed on an outer surface of the container holder,
  • a second groove portion that opens inward is formed on an inner surface of the container holder,
  • the inner end of the top waterproof cover is inserted into the first groove
  • the outer end of the side waterproof cover is inserted into the second groove,
  • the container holder is composed of left and right plate-shaped container holding members and a connecting member that detachably connects the left and right plate-shaped container holding members to each other, and the connecting member is fixed to an outer surface of the movable element.
  • the connecting member consists of an inverted U-shaped portion and an end portion connected to its inner end, and a gap is provided between the end face of the inverted U-shaped portion and the end face of the container holding member opposite it, so that the first groove portion is formed on the outer surface of the end of the connecting member.
  • the conveying device for the packaging machine described in 1) above eliminates the stretching of the chain that is a problem when using a conveyor chain, making it possible to prevent conveying problems and misalignment of the stopping position over time, and there is no need to adjust the setting position of each section to match the stopping position of the container holder.
  • there is no contact between the container holders which prevents conveying problems such as meandering of the container holder caused by the contact surface being worn down by friction and shortening the overall length (front-to-back width) of the container holder.
  • the linear motor drive makes it possible to individually control the speed, acceleration/deceleration, and stopping time of each container holder, and since there is no need to attach the container holders at a fixed pitch, this reduces the conveying load and enables sudden starts and stops, achieving high conveying capacity. In addition, after filling is completed, continuous conveying without stopping in the section below the sealing section is possible, which allows for faster packaging machines. Also, since there is no need to attach the container holders at a fixed pitch, the number of container holders can be reduced, making it possible to secure space for machine maintenance and making maintenance easier.
  • the container holder subjected to centrifugal force is received by a guide from the outside, allowing the container holder to perform an inversion operation without reducing the conveying speed. Furthermore, in the lower path, even if a force is suddenly applied to the container holder, the outside of the container holder is supported, so that the movement of the mover is stabilized, and the transport stability can be improved.
  • the container holder makes rotating contact with the guide using the rotating member, thereby reducing frictional resistance between the container holder on the side where a container is inserted and the guide, and transport becomes stable.
  • the container holder and the rotating member can be in rotational contact, but by providing the rotating member on the container holder side, the number of rotating members can be reduced compared to providing the rotating member on the guide side, which leads to cost reduction.
  • the container holder, top waterproof cover, and side waterproof cover are made to have a complex shape (labyrinth structure), making it possible to provide waterproofing to the linear motor.
  • the conveying device in the packaging machine in 6) above is a three-part one-piece type consisting of a central connecting member that also serves as a fixing member to the movable member and container holding members on both the left and right sides, and by not providing a top waterproof cover on the outside of the container holding members, the container holding members on both sides can be attached and detached from the connecting members while leaving the top waterproof cover in place, ensuring waterproofing when replacing the container holding members and making maintenance easier.
  • FIG. 1 is a side view showing an outline of an overall configuration of a packaging machine which is an example in which a conveying device in a packaging machine of the present invention is used; 1 is a side view showing an overall configuration of a conveying device in a packaging machine according to an embodiment of the present invention (with the motor cover removed).
  • FIG. 1 is a plan view showing the overall configuration of a conveying device (including a motor cover) in a packaging machine according to an embodiment of the present invention.
  • FIG. FIG. 5 is a cross-sectional view taken at the center of the front and rear of FIG. 4 .
  • FIG. 13 is a perspective view showing an attached state of the upper path guide member.
  • FIG. 13 is a perspective view showing an attached state of the reversal path guide member.
  • FIG. 4 is an exploded perspective view showing a configuration of a container holder of a conveying device in the packaging machine.
  • FIG. FIG. 6 is an enlarged cross-sectional view of a main portion of FIG. 5 .
  • 13 is a perspective view showing the installation state of a top waterproof cover in the upper path of the conveying device in the packaging machine.
  • FIG. 13 is a perspective view showing the attached state of the side waterproof cover in the upper path.
  • FIG. 11 is a perspective view showing an attached state of the waterproof cover in the inversion path.
  • FIG. 13 is a diagram showing modified examples of installation of a rotating member, in which (a-1), (b-1) and (c-1) are side views, and (a-2), (b-2) and (c-2) are plan views.
  • 10 is an enlarged cross-sectional view showing a modified example of the first groove portion in FIG. 9 .
  • FIG. 1 shows a packaging machine (1) as an example in which the conveying device (2) of this invention is used.
  • This packaging machine (1) is a machine that uses the conveying device (2) to intermittently or continuously convey cup-shaped containers, fills them with beverages, food, etc., and then seals the filled cup-shaped containers with a lid.
  • This packaging machine (1) is particularly known as a multi-row type, and can seal multiple containers lined up in a row in the left-right direction with a lid after filling them.
  • This conveying device (2) can also be used to convey bottles, trays, etc. in addition to cup containers.
  • the conveying device (2) of the embodiment shown in FIG. 1 has an endless running path (3) consisting of a straight upper path (11), a straight lower path (12), a semicircular first reversing path (13) that turns from the rear end of the upper path (11) to the rear end of the lower path (12), and a semicircular second reversing path (14) that turns from the front end of the lower path (12) to the front end of the upper path (11).
  • a container separation device A that supplies containers to the container holder (4), a container detection device (B) that checks whether a container has been supplied to the container holder (4), an electrostatic elimination device (C) that removes static electricity from inside the container, a foreign body removal device (D) that removes foreign bodies from inside the container, a foreign body inspection device (E) that checks whether foreign bodies inside the container have been removed, a container sterilization device (F) that sterilizes the inside of the container, a filling device (G) that fills the container with the contents, a sealing and trimming device (H) that seals the filled containers with the contents with a lid material and cuts the lid material of the sealed container to a specified shape, a secondary sealing device (I) that performs additional sealing, a skirt folding device (J) that folds the lid material of the sealed container, an outer lid capping device (K) that puts an outer lid on the sealed container, a defective container discharge device (L) that discharge
  • this conveying device (2) uses a linear motor drive device (5) equipped with a stator (21) and multiple movers (22) as a drive device for moving multiple container holders (4) along a travel path (3).
  • the stator (21) is located in the center of the packaging machine (1) on the left and right and is shaped to fit along the running path (3), and the multiple movers (22) are each capable of moving independently along the running path (3).
  • the container holder (4) has a container insertion hole (4a) that engages with a flange portion provided on the container, so that the container holder (4) holds the container with the opening facing outward when moving along the upper path (11).
  • the linear motor drive unit (5) is protected from water ingress from the outside by a motor cover (8).
  • the motor cover (8) is installed in a fixed state, and as shown in Figure 5, it is composed of an outer top waterproof cover (71A) (71B), a left side waterproof cover (right side in the figure) (72), a right side waterproof cover (left side in the figure) (73), and an inner bottom waterproof cover (74).
  • This motor cover (8) will be described in detail later with reference to Figure 9.
  • the conveyor frame (6) that supports the running path (3) and the linear motor drive device (5) includes a plurality of left and right legs (31) arranged to the left and right of the linear motor drive device (5) and extending in the vertical direction, left and right vertical columnar members (32) arranged parallel to the left and right legs (31) and at a predetermined interval in the front-rear direction, a first horizontal columnar member (33) arranged on the upper part of the left and right legs (31) and the left and right vertical columnar members (32) and extending in the front-rear direction, a second horizontal columnar member (34) arranged on the lower part of the left and right legs (31) and the left and right vertical columnar members (32) and extending in the front-rear direction, a third horizontal columnar member (35) arranged between the upper ends of the left and right legs (31), and a fourth horizontal columnar member (36) arranged between the middle parts of the left and right legs (31) and the middle parts of the left and right vertical columnar members (32).
  • a guide (7) for supporting the container holder (4) is provided on the conveyor frame (6).
  • the guide (7) is composed of a linear upper path guide member (41), a linear lower path guide member (42), a semicircular first reversal path outer guide member (43), a semicircular first reversal path inner guide member (44), a semicircular second reversal path outer guide member (45), and a semicircular second reversal path inner guide member (46).
  • the first reversal path inner guide member (44) has an upper end connected to the rear end (terminal end) of the upper path guide member (41), and similarly, the second reversal path inner guide member (46) has an upper end connected to the front end (starting end) of the upper path guide member (41).
  • the lower end of the first reversal path inner guide member (44) is positioned above (inside) the rear end (terminal end) of the lower path guide member (42), and the lower end of the second reversal path inner guide member (46) is positioned above (inside) the front end (terminal end) of the lower path guide member (42).
  • the first reversal path outer guide member 43 is provided so as to surround the first reversal path inner guide member 44, and its lower end is continuous with the rear end of the lower path guide member 42.
  • the upper end of the first reversal path outer guide member 43 is provided so as to be located above (outside) the rear end of the upper path guide member 41.
  • the second reversal path outer guide member 45 is provided so as to surround the second reversal path inner guide member 46, and its lower end is continuous with the front end of the lower path guide member 42.
  • the upper end of the second reversal path outer guide member 45 is provided so as to be located above (outside) the front end of the upper path guide member 41.
  • the upper path guide member (41) supports the inside of the container holder (4) from the inside (stator side) when the container holder (4) moves along the upper path (11).
  • the lower path guide member (42) supports the outside of the container holder (4) from the outside (outside of the stator) when the container holder (4) moves along the lower path (12).
  • the first reversal path outer guide member (43) supports the outside of the container holder (4) subjected to centrifugal force from the outside (outside of the stator) when the container holder (4) is transferred from the upper path (11) to the lower path (12) along the first reversal path (13).
  • the first reversal path inner guide member (44) supports the inside of the container holder (4) from the inside (stator side) at the position where it is handed over from the rear end (terminal end) of the upper path guide member (41) to the first reversal path outer/inner guide members (43)(44).
  • the first reversal path inner guide member (44) supports the inside of the container holder (4) from the inside (stator side) at the position where it is handed over from the rear end (terminal end) of the upper path guide member (41) to the first reversal path outer/inner guide members (43)(44).
  • no centrifugal force is applied to the container holder (4), and it can be supported by the first reversal path inner guide member (44).
  • the second reversal path outer guide member (45) supports the outside of the container holder (4) subjected to centrifugal force from the outside (outside of the stator) when the container holder (4) is transferred from the lower path (12) to the upper path (11) along the second reversal path (14).
  • the second reversal path inner guide member (46) supports the inside of the container holder (4) from the inside (stator side) at the position where the second reversal path outer/inner guide members (45)(46) transfer the container holder (4) to the starting end of the upper path guide member (41).
  • the second reversal path inner guide (46) supports the inside of the container holder (4) from the inside (stator side), thereby preventing the container holder (4) from getting caught on the starting end of the upper path guide member (41).
  • the upper path guide member (41) is installed via a bracket (81) at the top of the vertical columnar member (32) of the transport device frame (6) (and at the top of the left and right legs (31)).
  • the lower path guide member (42) although not shown in an enlarged view, is installed via a similar bracket (81) at the bottom of the vertical columnar member (32) of the transport device frame (6) and at the bottom of the left and right legs (31).
  • the front ends of the second reversal path inner guide member (46) and the upper path guide member (41) are attached to the upper part of the vertical columnar member (32) located at the front of the conveyor frame (6) via a bracket (82).
  • the front ends of the second reversal path outer guide member (45) and the lower path guide member (42) are attached to the lower part of the same vertical columnar member (32) via a bracket (83).
  • the second reversal path outer guide member (45) is connected to the upper path guide member (41) by a plate (96), and similarly, the second reversal path inner guide member (46) is connected to the lower path guide member (42) by a plate (97).
  • the second reversal path inner guide member (46) and the second reversal path outer guide member (45) are connected to each other by a plate (98).
  • the container holder (4) is composed of a pair of left and right container holding members (51) and a connecting member (52) that connects them.
  • the container holding member (51) is a horizontal plate
  • the connecting member (52) consists of an inverted U-shaped portion (53) and horizontal left and right end portions (54) that are connected to the inner end of the inverted U-shaped portion (53).
  • the left and right end portions (54) are abutted against the corresponding ends of the container holding member (51) from the inside.
  • the movable member (22) is disposed inside the connecting member (52), and the movable member (22) is composed of a horizontal portion (22a) and a vertical portion (22b) that extends inward from one end of the horizontal portion (22a).
  • the top wall of the inverted U-shaped portion (53) of the connecting member (52) is provided with four bolt insertion holes (56) for inserting bolts (55).
  • the male threads of the bolts (55) are threaded through the bolt insertion holes (56) into the female threads provided on the outer surface of the horizontal portion (22a) of the movable member (22), thereby fixing the container holder (4) to the outer surface of the movable member (22).
  • the connecting member (52) connects and integrates the pair of left and right container holding members (51), and fixes the integrated container holder (4) to the movable member (22) (it also serves as a fixing member for the movable member (22)).
  • the left and right ends (54) of the connecting member (52) are provided with a first protrusion (57) located in the center from front to back, and two second protrusions (58) located in front of and behind the first protrusion (57).
  • the end of each container holding member (51) on the connecting member (52) side is provided with a clamp member (59) having a recess that fits the first protrusion (57) and a through hole (60) that fits the second protrusion (58).
  • the clamp member (59) is called a "one-way clamper” (product name), and fits into the first protrusion (57) called a “clamp pin” (product name) and is prevented from falling out, allowing the container holding member (51) and the connecting member (52) to be detachably connected with one touch.
  • the second protrusion (58) and the through hole (60) fit into each other to prevent misalignment.
  • a pair of rollers (rotating members) (61) are provided at the end of the container holding member (51) farther from the connecting member (52) as rotating members that make rotational contact when the container holder (4) moves. As shown in FIG. 5, the pair of rollers (rotating members) (61) are guided by the upper path guide member (41) and the lower path guide member (42).
  • Figure 9 shows an enlarged cross-sectional view of the central portion of the upper path (11) on the left and right in Figure 5.
  • FIG 9 only a portion of a pair of left and right container holding members (51) is shown, which are connected by a connecting member (52).
  • a gap is provided between the left and right end faces of the inverted U-shaped portion (53) of the connecting member (52) and the opposing end faces of the container holding member (51), so that a first groove portion (62) that opens outward is formed on the outer surface of the left and right end portions (54) of the connecting member (52).
  • a second groove portion (63) that opens inward is formed on the left and right end portions of the inner surface of the top wall of the inverted U-shaped portion (53) of the connecting member (52).
  • the top waterproof cover (71A) of the motor cover (8) is positioned on the outside of the connecting member (52).
  • the mover (22) is fixed to the inside of the connecting member (52), and a magnet (23) is fixed to the inner surface of the horizontal part (22a) of the mover (22).
  • the stator (21) has an electromagnetic coil and is formed endlessly along the running path (3).
  • left and right rollers (24) are arranged on the horizontal portion (22a) of the mover (22) facing the stator (21) to sandwich the magnet (23), and left and right rails (25) for guiding the left and right rollers (24) are arranged on the outer surface of the stator (21) (the surface facing the mover (22)).
  • a vertical plate (26) is fixed to the left surface (the right surface in the figure) of the stator (21), and a horizontal plate (27) is fixed to the inner surface of the stator (21).
  • the top waterproof cover (71A) is composed of a gable roof-shaped top (71a) that slopes inwardly from the left and right center, and left and right vertical wall portions (71b) that extend vertically inward from the left and right ends of the gable roof-shaped top (71a).
  • the left and right vertical walls (71b) are inserted, for the most part, into the first groove (62) so as not to come into contact with the container holding member (51) and the connecting member (52).
  • the left side waterproof cover (72) consists of an inner vertical wall portion (72a) fixed to the plate (26) fixed to the stator (21), a horizontal wall portion (72b) extending leftward from the outer end of the inner vertical wall portion (72a), an outer vertical wall portion (72c) extending outward from the left end of the horizontal wall portion (72b), an inclined wall portion (72d) extending outwardly to the right from the outer end of the outer vertical wall portion (72c), and an extended horizontal wall portion (72e) extending leftward from the left end of the horizontal wall portion (72b).
  • the outer vertical wall portion (72c) and the inclined wall portion (72d) form an inverted L-shape overall, and the inclined wall portion (72d) is inserted into the left-side second groove portion (63) so that they do not come into contact with the connecting member (52).
  • the right side waterproof cover (73) consists of an inner vertical wall portion (73a) fixed to the inner bracket (84), an inner inclined wall portion (73b) extending outwardly to the left from the outer end of the inner vertical wall portion (73a), an outer vertical wall portion (73c) extending outwardly from the outer end of the inner inclined wall portion (73b), and an outer inclined wall portion (73d) extending outwardly to the left from the outer end of the outer vertical wall portion (73c).
  • the outer vertical wall portion (73c) and the outer inclined wall portion (73d) form an inverted L-shape overall, and the outer inclined wall portion (73d) is inserted into the right-side second groove portion (63) so that they do not come into contact with the connecting member (52).
  • An inverted-L-shaped portion (85a) of an outer bracket (85) fixed to an inner bracket (84) abuts against the inverted-L-shaped outer vertical wall portion (73c) and the outer inclined wall portion (73d) from the inside.
  • the outer ends (72d) (73d) of the side waterproof covers (72) (73) inserted into the second groove portion (63) are positioned outside the inner ends of the left and right vertical wall portions (71b) of the top waterproof cover (71A) inserted into the first groove portion (62).
  • the bottom waterproof cover (74) consists of a horizontal wall portion (74a) fixed to the horizontal plate (27) and a vertical wall portion (74b) extending outward from the left end of the horizontal wall portion (74a).
  • the vertical wall portion (74b) is fixed to the inner end of the vertical plate (26).
  • the right end of the horizontal wall portion (74a) is fixed to the horizontal part of the L-shaped bracket (86) fixed to the inner bracket (84).
  • the top waterproof cover (71A) is fixed to the front and rear surfaces of the third horizontal columnar member (35) via L-shaped brackets (87).
  • the right waterproof cover (73) is fixed to the top surface of the fourth horizontal columnar member (36) via an L-shaped bracket (88).
  • the left waterproof cover (72) is also fixed to the top surface of the fourth horizontal columnar member (36) via a bracket (not shown).
  • the bottom waterproof cover (74) is also fixed to the top surface of the fourth horizontal columnar member (36) via a bracket.
  • the top waterproof cover (71B) of the lower path (12) has the gable roof-shaped top (71a) of the top waterproof cover (71A) of the upper path (11) changed to a horizontal top.
  • the waterproof covers provided on the first reversing path (13) and the second reversing path (14) are basically provided along the reversing paths (13) and (14) with a semicircular side shape and the cross-sectional shape shown in FIG. 9, as shown in FIG. 12.
  • the motor cover (8) includes an outer waterproof cover (75) for the reversing path, a left side waterproof cover (right side in the figure) (76) for the reversing path, a first right side waterproof cover (left side in the figure) (77) for the reversing path, and a second right side waterproof cover (78) for the reversing path.
  • the outer waterproof cover (75) for the reversing path has a horizontal top, which is fixed to the third horizontal columnar member (35) via a bracket (89).
  • the left waterproof cover (76) for the reversing path is fixed to a semicircular plate (26) fixed to the stator (21). This plate (26) is fixed to the fourth horizontal columnar member (36).
  • the first right waterproof cover (77) is fixed to the fourth horizontal columnar member (36) via a bracket (90) fixed to the upper surface and a bracket (91) fixed to the lower surface.
  • the second right waterproof cover (78) for the reversing path is also fixed to the fourth horizontal columnar member (36) via a bracket (90) fixed to the upper surface and a bracket (91) fixed to the lower surface.
  • the linear motor drive device (5) individually controls the speed, acceleration/deceleration, and stop time of each container holder (4) by linear motor drive. Therefore, there is no need to attach the container holders (4) at a fixed pitch, which reduces the conveying load and enables sudden starts and stops, achieving high conveying capacity. In addition, after filling is completed, continuous conveying without stopping in the section below the sealing section is possible, which allows the packaging machine (1) to operate at a high speed. In addition, since there is no need to attach the container holders (4) at a fixed pitch, the number of container holders (4) can be reduced, making it possible to secure machine maintenance space and facilitating maintenance.
  • the left and right rollers (24) come into contact with the left and right rails (25) that guide them, creating a gap of approximately 0.5 mm (actual value) between the inner surface of the magnet (23) and the outer surface of the stator (21).
  • the gap is an appropriate distance (approximately 0.5 mm), so the linear motor drive device (5) can obtain the original (catalog specifications) propulsive force of the linear motor drive.
  • the linear motor drive device (5) can obtain the original (catalog specifications) propulsive force of the linear motor drive.
  • the gap will no longer be able to maintain an appropriate distance (approximately 0.5 mm), creating the problem that the original propulsive force of the linear motor drive cannot be obtained.
  • the packaging machine (1) is equipped with a filling device (G) as shown in FIG. 1, the weight of the contents is added to the weight of the container when the contents are filled into the container, making the movable element (22) more likely to tilt.
  • the conveying device (2) in the packaging machine (1) of the above embodiment when the container holder (4) moves along the upper path (11), the upper path guide member (41) of the guide (7) supports the inside of the container holder (4) from the inside (stator side). This makes it possible to prevent the movable element (22) from tilting, and allows the packaging machine (particularly a multi-row packaging machine) (1) using linear motor drive to operate stably.
  • the guide (7) is equipped with the first reversal path outer guide member (43) and the second reversal path outer guide member (45).
  • the first reversal path outer guide member (43) and the second reversal path outer guide member (45) receive the container holder (4) to which centrifugal force is applied from the outside, so that the container holder (4) can perform the reversing operation without reducing the conveying speed.
  • the guide (7) further includes a lower path guide member (42), even if a force is suddenly applied to the container holder (4) in the lower path (12), the outside of the container holder (4) is supported, stabilizing the movement of the movable member (22), thereby improving transport stability.
  • FIG. 8 shows an example in which a pair of rollers (61) are provided as rotating members that make rotational contact when the container holder (4) moves at the end of the container holding member (51) opposite to the end on the connecting member (52) side.
  • the rotating member (61) that makes rotational contact when the container holder (4) moves in addition to using the pair of rollers (61) shown in FIG. 8, the installation structure of the rotating members (103) and (105) shown in FIG. 13 can also be used.
  • a bracket (102) consisting of a pair of left and right opposing walls (102a) and (102b) that support a rotating shaft (101) is fixed to the inner surface of the container holding member (51), and a rotating body (103) is supported rotatably on the rotating shaft (101).
  • a pair of left and right opposing walls (51a) (51b) that support the rotating shaft (101) are integrally provided on the front and rear sides of the inner surface of the container holding member (51), respectively, and a rotating body (103) is supported rotatably on the rotating shaft (101).
  • a single rotating shaft (104) is directly fixed to the center of the front and rear of the end face of the container holding member (51), and a rotating body (one rotating body) (105) is rotatably supported on the rotating shaft (104).
  • FIG. 9 shows an example in which a first groove portion (62) that opens outward is formed by providing a gap between the left and right end faces of the inverted U-shaped portion (53) of the connecting member (52) and the end face of the container holding member (51) that faces the inverted U-shaped portion (53).
  • the left and right end portions (66) of the connecting member (64) may be made larger in width and thickness, and the boundary portions between the left and right end portions (66) and the inverted U-shaped portion (65) may be made thinner to form the first groove portion (62).
  • the same components as those in FIG. 9 are denoted by the same reference numerals, and their description will be omitted.
  • the left and right vertical wall portions (71b) of the top waterproof cover (71A) are inserted into the first groove portion (62) that opens outward and is formed in the container holder (4), and the inverted L-shaped portions (72c), (72d), (73c), (73d) of the side waterproof covers (72) and (73) are inserted into the second groove portion (63) that opens inward and is formed in the container holder (4).
  • the top waterproof cover (71A), and the side waterproof covers (72) and (73) into a complicated shape (i.e., a labyrinth structure), water is prevented from entering the linear motor drive device (5) from the outside, and the motor cover (8) provides reliable waterproofing of the linear motor.
  • the top waterproof cover (71A) is not provided on the outside of the container holding member (51). Therefore, the container holding member (51) can be easily attached and detached to the connecting member (52), which also serves as a fixing member for fixing to the stator (21), by connecting, disconnecting, and reconnecting with the one-touch clamping member (59) while the top waterproof cover (71A) is still in place. This ensures waterproofing when replacing the container holding member (51) and also makes maintenance easier.
  • FIG. 1 shows an example of a packaging machine (1) equipped with a filling device and a sealing device, but the present invention is not limited to this, and the conveying device (2) of the above embodiment can be applied to a packaging machine equipped with either one of them.
  • stator (21) is installed in the center between the left and right guide members (41) and (42) (see, for example, FIG. 5), but this is not limited thereto, and the stator (21) may be installed to the left or right of the center.
  • a rotating member (61) is provided at a position corresponding to the guide members (41) and (42) of the container holder (4) to make rotating contact with the guide members (41) and (42) (see FIG. 5).
  • a modified example shown in FIG. 13 is also described as a similar configuration, but the present invention is not limited to this.
  • the container holder (4) and the guide members (41) and (42) may come into contact with each other using the following configuration.
  • the container holder (4) and the guide members (41) and (42) make cam-like contact with each other.
  • a material with a low coefficient of friction e.g., a resin rail
  • the container holder (4) and the guide members (41) and (42) come into rotational contact.
  • the container holder (4) come into rotational contact with the guide (7) through the rotating member (61)
  • frictional resistance between the container holder (4) on the side where the container is inserted and the guide (7) can be reduced, which is preferable since it stabilizes the transport.
  • multiple rollers (61) as the rotating member it is possible to prevent the movable member (22) from being subjected to a force that tilts it in the forward and backward directions, which is even more preferable since it further stabilizes the transport.
  • rotating members (61) are installed on the container holder (4) (see Figure 8), but this is not limited to this, and the number of rotating members (61) may be one.
  • rollers are used as the rotating members (61), but instead of this, ball casters using plastic balls or steel balls may be used and the ball casters may be guided by appropriate guides corresponding to the ball casters.
  • the left and right guide members (41) and (42) are arranged on the left and right outer sides of the container holder (4) (see FIG. 5), but this is not limited thereto, and they may be arranged below the container holder (4) (container holding member (51)).
  • the container holder (4) is composed of two container holding members (51) and a connecting member (52) that also functions as a fixing member (see FIG. 8), but this is not limiting, and the container holder (4) may be composed of a fixing member (52) that is fixed to the movable member (22) and one container holding member (51). Also, one or two container holding members (51) may be installed directly on the outer surface of the movable member (22) without the use of a fixing member (52).
  • the guide members (41), (42), (43), (44), (45), and (46) constituting the guide (7) can be installed at any location on the conveyor frame (6), and the configuration of the conveyor frame (6) is not limited to the above embodiment.
  • This invention is suitable for use as a conveying device in a packaging machine equipped with a filling device that fills containers with liquid food, beverages, or other contents and/or a sealing device that seals the containers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Linear Motors (AREA)
  • Non-Mechanical Conveyors (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
PCT/JP2023/035089 2023-01-20 2023-09-27 包装機械における搬送装置 Ceased WO2024154389A1 (ja)

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JP2024571615A JPWO2024154389A1 (https=) 2023-01-20 2023-09-27
KR1020257026796A KR20250135259A (ko) 2023-01-20 2023-09-27 포장 기계에 있어서의 반송 장치
CN202380091468.3A CN120530070A (zh) 2023-01-20 2023-09-27 包装机械中的搬送装置

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000118698A (ja) * 1998-10-07 2000-04-25 Daifuku Co Ltd 搬送装置
JP2018123003A (ja) * 2017-01-27 2018-08-09 村田機械株式会社 物品搬送装置
JP2019505443A (ja) * 2015-12-14 2019-02-28 マクロ ラベリング ソチエタ レスポンサビリタ リミタータＭａｋｒｏ Ｌａｂｅｌｌｉｎｇ Ｓ．Ｒ．Ｌ． 容器のための搬送機械

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610108A (ja) 1992-06-26 1994-01-18 Nippon Steel Corp メッキ付着量の制御方法及び装置
JP4486328B2 (ja) 2003-07-09 2010-06-23 四国化工機株式会社 チェーンレス容器搬送装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000118698A (ja) * 1998-10-07 2000-04-25 Daifuku Co Ltd 搬送装置
JP2019505443A (ja) * 2015-12-14 2019-02-28 マクロ ラベリング ソチエタ レスポンサビリタ リミタータＭａｋｒｏ Ｌａｂｅｌｌｉｎｇ Ｓ．Ｒ．Ｌ． 容器のための搬送機械
JP2018123003A (ja) * 2017-01-27 2018-08-09 村田機械株式会社 物品搬送装置

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