JP4329952B2 - Automatic can packing machine for can lid - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a can lid body automatic bagging apparatus in which a predetermined number of can lids are stacked horizontally and packed as it is.
[0002]
[Prior art]
Conventionally, can lids used for aluminum cans and steel cans for filling beverages and the like are molded separately from the can body and shipped to a filling factory. When shipping can lids, several hundred sheets are stacked in a cylindrical shape, filled into a packaging bag, and packed. In order to pack the can lid, generally, the can lid is vertically stacked and stacked in a cylindrical shape, and the bag is held in a bag holding device arranged in series with the can lid stacking device. Opening the mouth part, the can lid body laminated in the columnar shape is pushed in and packed into a bag. For example, as an example of such a bag filling apparatus, there is a can lid bag filling apparatus described in Japanese Patent Application Laid-Open No. 6-8903.
[0003]
In the apparatus described in the above publication, a tray on which a can lid body in a state in which a large number of can lids are arranged in an upright and close contact is held and advanced is moved forward with respect to a bag opened on the same axis as the can lid body. A push rod that is disposed so as to be retractable and that presses the can lid on the tray into the bag when the tray is retracted from within the bag is disposed so as to be capable of moving forward and backward relative to the bag, and the opening of the bag A temporary folding device is provided that crushes the end flat.
[0004]
[Problems to be solved by the invention]
Bags for packing can lids stacked in a columnar shape are generally stored in a flat folded state. Then, when the bag is packed, it is supplied to the bag holding device, the mouth is opened with a suction pad, the mouth is fixed with an opening guide, and the tray on which the can lid is placed is advanced and inserted into the bag as it is. . At this time, although the mouth of the bag is open, the entire tray is not completely inflated, so that the tray and the can lid move forward while expanding the bag. Since the seed bag is a paper bag, the bag may be damaged by the strong resistance between the tray and the can lid. In addition, in order to prevent the can lid from being reversed when filling the bag, there is a method of holding the bag obliquely and pushing the can lid from below to fill the bag (for example, Japanese Patent No. 2792283). As described above, even when the can lid body is pushed up obliquely and filled, the bag is subjected to the same strong resistance as in the horizontal case, and the bag may be damaged.
[0005]
Further, since the bag is held in a state where the opening is fixed when the can lid is filled, there is a possibility that the bottom of the closed bag may be broken when it is pushed in with a strong force. On the other hand, if it is not pushed in strongly, when it is packaged in a state where a large number of can lids are laminated, the can lid body may become slack and difficult to handle during transportation. The tray on which the can lid is placed waits in a horizontal state, receives the can lid, advances in the direction of the opened bag and fills the bag, then returns to the original state and re-inserts the can lid. Since it repeats accepting, there is a problem that it takes time to accept the can lid and work efficiency is poor. Furthermore, when the tray on which the can lid is placed and the bag are arranged in series, such a large installation space is required, and the apparatus cannot be reduced in size.
[0006]
Therefore, the present invention was made to solve the above problems, and not only does the bag not break or the can lid is inverted during bagging, but also improves the working efficiency of bagging, In addition, an object of the present invention is to provide an automatic bag filling device for can lids which can be downsized to reduce the installation area.
[0007]
[Means for Solving the Problems]
  In order to achieve this object, an automatic bag filling apparatus for can lids according to the present invention includes a can lid supply mechanism that counts a predetermined number of can lids and supplies them in a horizontal state, and a can supplied from the can lid supply mechanism Can lid stacking mechanism that stacks the lids in a horizontal state, a bag filling mechanism that packs the stacked can lids into a bag, and an empty bag supply that takes out the folded empty bags one by one and supplies them to the bag filling mechanism It is characterized by comprising a mechanism and a packaging body carrying-out mechanism for carrying out a packaged packaging body. The can lid supply mechanism includes:Along the outer periphery of the can lidVerticallyFour guide bars at regular intervalsArrangedTubularOn the supply pathFits around the periphery of the can lidAdjust the drop speed of the can lid4 gearsA buffer;A screw groove that fits the periphery of the can lid is formed on the outer peripheral surface, and comprises a rotating tooth that drops the can lid one by one and a proximity switch that is close to the rotating plate with a part of the outer periphery cut away.A lid counting device.
[0008]
  The can lid stacking mechanism is provided with four can lid holding cylinders for stacking the can lids on the periphery of a rotating plate that intermittently rotates by a quarter of a turn, and the can lid holding cylindersFour guide bars are arranged in a circular shape along the outer periphery of the can lid, and fixed at the top and bottom with a frame with a larger diameter hole than the can lid.A plurality of claws for preventing the stored can lid body from dropping, and a rod that can be inserted into the can lid holding cylinder when coaxially ascending below the can lid holding cylinder overlapping the lid counting device.A can lid body height adjusting device that is driven up and down is provided.
  The bagging mechanism rotates intermittently by a quarter of a turn.The saddle-shaped holding plates face each other with a gap, and the lower end of the holding plate is fixed with a fixed cylinder having a stopper on the lower end surfaceA hopper that can be raised and lowered,From the can lid holding cylinder of the can lid stacking mechanismTo the hopperThe can lid can be raised and lowered freelyAn air cylinder having a rod, and a side opposite to a hopper position for receiving the can lid body from the can lid holding cylinder of the can lid stacking mechanismA cylinder having a rod that pushes up the can lid in the hopper and fills the packaging bag;A bag gripping part that holds the hopper together with the bag.I have.
  The empty bag supply mechanismHas a table that can be raised and lowered and a claw for temporarily placing a packaging bagEmpty bag storage device and storedSuction the uppermost bag from above to the next bag inversion deviceA bag transport device to transportThe bag mounting plate in which the tip of the vacuum pad protrudes from below via a support rod is provided on the substrate so that the substrate can be turned up and down.Bag inversion device and inverted bagA chuck member for receiving the mouth portion of the bag downward, a bag mouth opening device for opening the mouth portion of the bag, a centering device disposed below the bag mouth opening device, and a protruding portion from the bag placing plate A vacuum pad opposite to the vacuum pad is disposedWith an inverted bag moving deviceing.
  In addition, the package unloading mechanism isA presser plate that is fixed to a parallel open / close chuck and has a cover presser plate on the inner surface.A gripping device for gripping a package containing a can lid, and the packageFlip the top and bottom ofEquipped with a robot device to transport to the next processing.
[0009]
And a can lid relay mechanism for receiving a can lid stacked on a columnar body from the can lid stacking mechanism when the bag filling mechanism and / or empty bag supply mechanism is defective, and the can lid relay mechanism A storage and bagging mechanism that can be manually packed in a bag, and the lid relay mechanism is intermittently rotated half a turn horizontally. A pair of hoppers and an air cylinder for raising and lowering the hoppers are provided 180 degrees apart on a rotating turntable, and the can lid holding cylinder of the can lid stacking mechanism and the hopper are formed so as to overlap vertically. The storage and bagging mechanism includes a dispensing device that dispenses the can lid from the hopper of the can lid relay mechanism, a stock device that stocks the dispensed can lid, and a stocked can lid. Manually bagging And a bag-packing apparatus.
[0010]
The hopper in the can lid relay mechanism has four guide bars that house the can lid in a holding cylinder having a slit formed on one side surface, and are erected at substantially equal intervals along the outer periphery of the can lid. In addition to the formation, a stopper that prevents the can lid body from falling can be provided at the tip of the hopper. . Further, the dispensing device in the storage / packing mechanism in the can lid relay mechanism includes a stopper that presses the front end surface of the can lid in the hopper, and a hook that presses the rear end surface and can be inserted into the slit of the holding cylinder. Can be provided on the platform so as to be able to rise and fall. In addition, the stock device in the can lid relay mechanism includes a wave attaching portion for temporarily receiving a can lid paid out by two parallel mounting bars, and a wave that fits and stocks the can lid. It can be set as the structure which has a mounting table of a shape and a mounting apparatus which transfers a can lid body to a mounting table from a temporary receiving part. . In addition, the bag filling device in the can lid relay mechanism includes a scraping member that scrapes the can lid on the placement table, and a bag tray for placing the paper bag and pushing the can lid. be able to.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In the drawings to be referred to, FIG. 1 is a plan view showing the outline of the entire apparatus according to an embodiment of the present invention, and FIG. This apparatus includes a can lid supply mechanism A that drops a predetermined number, for example, several hundred sheets, in a horizontal state while counting the number of can lids that have been conveyed one by one in a horizontal state, and the can lid supply mechanism The can lid stacking mechanism B for stacking the can lid supplied from the columnar body in a horizontal state, the bag filling mechanism C for receiving the stacked can lid body and packing it into the supplied bag, and stocking the empty bag An empty bag supply mechanism D that supplies the empty bag to the bag filling mechanism C, a package delivery mechanism E that carries out the package packed, and the bag filling mechanism C or empty bag supply. Can lid body relay mechanism F that receives and disposes the can lid body stacked on the columnar body from the can lid lamination mechanism B when the mechanism D or the like is defective, and the can lid that is dispensed from the can lid relay mechanism F Temporary stocking and storage that can be manually bagged It is composed of a bagging mechanism G. Except for manual bagging in the storage / bagging mechanism G, each mechanism is fully automated. Below, each mechanism is demonstrated along the process of bagging.
[0012]
The can lid supply mechanism A supplies the can lids K that have been transported one by one in a horizontal state by dropping them vertically in the vertical direction. A can lid supply path 13 composed of four guide bars 12 is arranged in a vertical direction on a conveyance path 10 to be conveyed via a vacuum down stacker 11, and buffers 14 and 14 a are provided in an intermediate portion of the can lid supply path 13. A lid counting device 15 is provided at the lower end. As shown in FIG. 3, the can lid supply path 13 is formed in a cylindrical shape by arranging four guide bars 12, 12 at substantially equal intervals along the outer peripheral edge of the can lid K, The can lid K falls in a horizontal state in the can lid supply path 13. The dropped can lid K is temporarily provisionally received by the first buffer 14 and the second buffer 14a, and the dropping speed is adjusted.
[0013]
The buffers 14, 14 a are arranged so as to be orthogonal between the guide bars 12, 12, and include a gear 16 fitted to the periphery of the can lid K and a motor 17 that drives the gear 16. Each of the gears 16 is provided with a drive shaft 18, and is simultaneously rotated and stopped by a motor 17 via a bevel gear 19. Accordingly, the can lid K dropped into the supply path 13 by the vacuum down stacker 11 is first stacked in the buffer 14 while being locked to the gear 16 and stacked at a predetermined height, and then the motor 17 is operated. Then, the gears 16 are rotated and dropped one by one into the next buffer 14a. In this embodiment, the first buffer 14 is stacked with the vacuum down stacker 11 so that a gap with a size smaller than the diameter of the can lid K is generated, and then the can lid K is placed below the first lid 14 while maintaining the gap. 2 buffer 14a. In the second buffer 14 a, the gaps between the first buffer 14 and the first buffer 14 are stacked so that a distance smaller than the diameter of the can lid K is generated, and then the can lid K is supplied to the lower lid counting device 15 while maintaining the gap To do. As described above, by maintaining the space above the stacked can lids at a size smaller than the diameter of the can lid K, the can lid K can be prevented from being reversed when dropped.
[0014]
As shown in FIGS. 5 and 6, the lid counting device 15 provided at the lower end of the can lid supply path 13 includes rotating teeth 20 and 20 for dropping can lids K one by one, and the rotating teeth 20 and 20. A servo motor 21 that rotates 20 and a proximity switch 22 that counts the rotations of the rotating teeth 20 and 20 are included. The rotating teeth 20 are supported by a rotating shaft 23, and a screw groove 20a for fitting the outer peripheral edge of the can lid K in a direction orthogonal to the shaft 23 is formed on the outer peripheral surface. The rotary shaft 23 is driven by a gear 24 that is coaxially supported and meshed with a gear 26 that is pivotally supported on the outer peripheral surface of the fixed cylinder 25 that fixes the guide bar 12. The gear 26 is rotated by a gear 29 that is supported by a rotating shaft 28 of a servo motor 21 via a reduction gear 27. The proximity switch 22 is pivotally supported by one of the rotating shafts 23 and is disposed in proximity to a rotating plate 32 with a part of the outer peripheral edge cut away. The proximity switch 22 measures the rotation speed of the rotating plate 32.
[0015]
The rotating teeth 20 and 20 are rotated to guide the outer peripheral edge of the can lid K to the screw groove 20a, and the can lids are dropped one by one by rotating once. The rotating plate 32 coaxial with the rotating tooth 20 also rotates once, and the rotation of the rotating plate 32 is detected by the proximity switch 22 and it is measured that one can lid has dropped. In the lid counting device 15, the rotation of the rotating teeth 20 is stopped, and the can lid K that has fallen from the second buffer 14 a so as to have an interval smaller than the diameter of the can lid K is placed between the second buffer 14 a and the can lid K. Then, the servomotor 21 is actuated to rotate the rotating tooth 20, and the can lid K is supplied to the lower can lid stacking mechanism B while adjusting the supply amount according to the dropping speed. As described above, by maintaining the space above the stacked can lids K at a size smaller than the diameter of the can lids K, the can lids K can be prevented from being inverted when dropped.
[0016]
  As shown in FIGS. 7 and 8, a can lid stacking mechanism B is disposed below the lid counting device 15 disposed at the lower end of the can lid supply path 13.. AboveThe can lid stacking mechanism B includes a plurality of can lid holding cylinders 30 standing in a circular shape on a plane, and a can lid body height adjusting device 31 that adjusts the height of the upper surface of the can lid body when stacking. . The can lid holding cylinder 30 is arranged in a circular shape at equal intervals on the outer peripheral portion of the rotating plate 40 that rotates intermittently by a quarter of a turn. In the can lid holding cylinder 30, similarly to the can lid supply path 13, the four guide bars 41 are arranged at equal intervals so as to contact a circle slightly larger than the outer diameter of the can lid, and the upper portion is provided with a can lid. It is fixed by a mouth frame 42 provided with a through-hole capable of being inserted, and fixed by a bottom frame 43 provided with a through-hole similar to the mouth frame 42 at the lower part. The bottom frame 43 is erected on a substantially cross-shaped rotating plate 40 provided with a through hole 44 smaller than the outer diameter of the can lid so as to latch the can lid at the lower end. The rotating plate 40 stores the can lid from the can lid supply path 13 in the can lid holding cylinder 30 by intermittently rotating horizontally by a quarter of a turn. As will be described later, the can lid holding cylinder 30 can be paid out by pushing up the can lid filled from the upper opening with a rod from below by opening up and down.
[0017]
The rotating plate 40 is fixed to a rotating shaft 51 and is configured to intermittently rotate in the horizontal direction by a quarter with the rotating shaft 51 by a driving device 52. When the rotating plate 40 is stopped, the can lid holding cylinder 30 is positioned directly below the can lid supply path 13 and accommodates the can lids that fall one by one from the lid counting device 15. Immediately below the can lid supply path 13, stoppers 48, 48 that are movable in the horizontal direction are disposed. The stoppers 48 are opposed to the lid counting device 15 at a height position where the gap is smaller than the diameter of the can lid, and are fixed to the rod 50 of the cylinder 49. The stoppers 48, 48 temporarily receive the can lid that moves forward from between the guide bars 41 and drops until the rod of the can lid height adjusting device 31 described later rises.
[0018]
Next, a can lid body height adjusting device 31 that adjusts the height of the top surface of the can lid body when stacking is disposed directly below the can lid supply path 13. The can lid body height adjusting device 31 is configured such that a rod 46 that can move up and down substantially on the same axis as the can lid holding cylinder 30 that stops right above is driven up and down by a single-axis electric actuator 47. By the operation of the single-axis electric actuator 47, the rod 46 is raised and inserted from the through hole 44, and is placed in contact with the bottom surface of the can lid temporarily received by the stoppers 48 and 48. Thereafter, the stoppers 48 and 48 are moved backward, and the rod is gradually lowered while adjusting the upper surface height of the laminated can lid according to the speed at which the can lids are laminated. In this manner, the can lid is lowered while being placed on the distal end surface of the rod 46, thereby being stacked in a columnar shape.
[0019]
Therefore, the can lid K is laminated on the can lid holding cylinder 30 as follows. As soon as one of the can lid holding cylinders 30 is rotated directly under the lid counting device 15, the stopper 48 advances immediately from between the guide bars 41, and the lid counting device 15 operates to drop the can lid K. The stopper 48 is temporarily received by the stopper 48. Next, the rod 46 provided on the single-axis electric actuator 47 is inserted through the through hole 44, reaches the stopper 48, and the can lid body temporarily received by the stopper 48 is placed. Thereafter, the stopper 48 is retracted and the can lid body is placed on the tip end surface of the rod 46, and the can lid K is lowered in synchronism with the supply speed of the falling can lid, and the can lid K is moved into the can lid holding cylinder 30. Laminate to a predetermined height. When the tip end surface of the lifting rod 46 is pulled out from the through hole 44 and stacked at a predetermined height, the lid counting device 15 temporarily stops and rotates the rotating plate 40 to store the can lid K. And wait for the next can lid holding cylinder 30 to rotate. When the next can lid holding cylinder 30 is rotated directly below the can lid supply path 13 and the lid count device 15, the stopper 48 advances immediately from between the guide bars 41, and the lid count device 15 is activated.
[0020]
Next, the configuration of the bag filling mechanism C will be described. In the left half of FIG. 9, the rotating plate 40 rotates by a quarter of the clockwise direction, and the can lid holding cylinder 30 rotates to the position S <b> 2 in FIG. 8, and overlaps below the hopper 60 of the bagging mechanism C. It shows the state. The hopper 60 has a hook-shaped holding plate 61 with a sharp upper end facing each other with a gap, and a lower end portion is fixed in a vertical direction by a fixed cylinder 62, and a plurality of stoppers 63 are provided on a lower end surface of the fixed cylinder 62. As in the case of the can lid holding cylinder 30, it rotates intermittently by a quarter of a turn. The fixed cylinder 62 is fixed via a connecting member 66 to an elevating rod 65 that is held up and down by a gripping material 64. Accordingly, the hopper 60 moves up and down integrally with the lifting rod 65. The stopper 63 is pivotally supported at its lower end so as to be able to protrude and retract from the inner surface of the fixed cylinder 62, and is normally biased to the inside of the fixed cylinder 62.
[0021]
As shown in FIG. 10, the stopper 63 is pivotally supported by a mounting cylinder 63c whose lower end is fixed to the lower end of the fixed cylinder 62 by a shaft 63a so as to be rotatable upward, and an inner side of the fixed cylinder 62 by a spring material 63b. Is being energized. When the upper end of the stopper 63 is pressed to the outside of the fixed cylinder 62, the stopper 63 rotates against the spring material 63b and the inner surface becomes substantially flush with the inner surface of the fixed cylinder 62 or slightly more than the inner surface of the fixed cylinder 62. It is formed so as to be located outside. Therefore, when the stopper 63 is pushed up from below, the tip end portion is flush with the inner surface of the fixed cylinder 62 or can be rotated outward from the inner surface of the fixed cylinder to fill the can lid from below. When the filled can lid is positioned above the stopper 63, the tip portion is again returned by the spring material 63b and protrudes from the inner surface of the fixed cylinder 62, thereby preventing the filled can lid body from being locked and dropped. .
[0022]
The gripping material 64 is integrally fixed to the outer periphery of the head 69 of the rotary shaft 68 driven by the motor 67 and rotates integrally with the rotary shaft 68. A planar circular guide plate 72 having a horizontal groove 71 formed on the outer peripheral surface is provided on the upper portion of the support base 70 that supports the rotating shaft 68. The guide plate 72 is formed with two vertical grooves 73 communicating with the horizontal groove 71 in a direction perpendicular to the plane. A sliding member 75 having a recess 74 formed on the outer surface of the upper part is fitted in the vertical groove 73 so as to be movable up and down. The concave portion 74 coincides with the horizontal groove 71 when the sliding member 75 is raised, and forms a part of the horizontal groove 71. When the hopper 60 is intermittently rotated by a quarter of a turn in the opposite direction to the clockwise direction at positions T1 to T4 in FIG. 11, the vertical groove 73 is formed at the positions T3 and T4. Yes. The position of T2 overlaps with the position of S2 in FIG. 8, the can lid body is pushed up to the hopper 60 from the can lid holding cylinder 30 rotated to the lower surface side, and the hopper 60 is inserted into the packaging bag at the position of T3, The can lid is filled into the packaging bag from the hopper 60 at the position T4.
[0023]
  At T3 and T4 in FIG. 11, as shown in the right half of FIG. 9, the sliding member 75 for raising and lowering the elevating rod 65 is the movable part of the rodless cylinder 81 attached to the column 80 at each position. 82. The horizontal groove 71 and the recess 74 are fitted with a slider 76 fixed to the lower end of the elevating rod 65. When the motor 67 is operated to rotate the rotary shaft 68, the head 69 of the rotary shaft 68 is rotated. The gripping material 64 fixed to the rotary member 65 also rotates together. At this time, the slider 76 fixed to the lower end portion of the elevating material 65 is guided by the horizontal groove 71 and rotated. When the slider 76 stops at the position of the recess 74 of the sliding member 75, the slider 76 is pulled down together with the sliding member 75, and accordingly, the lifting rod 65 and the hopper 60.AlsoPull down at the same timeIsWill be.
[0024]
Further, the left half of FIG. 9 is a front view showing a state where the can lid holding cylinder 30 is stopped just below the hopper 60 and S2 of FIG. 8 and T2 of FIG. 11 overlap. At this position, an air cylinder 55 is disposed that pushes up the can lid body from the can lid holding cylinder 30 to fill the hopper 60. In other words, the can lid stacking mechanism B and the bagging mechanism C are moved up and down on substantially the same axis as the can lid holding cylinder 30 below the can lid holding cylinder 30 at the delivery position of the can lid body (S2 in FIG. 8). An air cylinder 56 having a free rod 56 is erected. When the rod 51 of the air cylinder 55 is raised, it is inserted into the can lid holding cylinder 30 to push up the can lid body, and fills the hopper 60 waiting on the upper side. Since the can lid filled in the hopper 60 is locked by the stopper 63, it does not fall. The hopper 60 filled with the can lid body moves to T3 after a quarter turn for insertion into the bag (see FIG. 11).
[0025]
The right half of FIG. 9 is a side view of the state in which the hopper 60 inserted into the packaging bag at the position T3 in FIG. 11 has moved to the position T4. In the position of T4 in FIG. 11, in addition to the rodless cylinder 81 that drives the movable part 82, the bag holding part 77 that holds the bag H lightly together with the hopper 60, and the can lid in the hopper 60 are pushed up. An air cylinder 78 for filling the bag H is provided. As shown in FIGS. 9 and 13, the bag gripping portion 77 is provided with a rodless cylinder 77b on the mounting plate 77a on the upper surface of the support column 80, and an air chuck that drives a pair of gripping members 77c by the rodless cylinder 77b. 77d is configured to move forward and backward. A clamp claw 77e that is opposed in the horizontal direction is provided inside the distal ends of the pair of gripping members 77c, and the clamp claw 77e is biased in a direction in which the clamp claw 77e is pushed out by a coil spring embedded in the gripping member 77c. When a strong tensile force is applied to the packaging bag when the can lid is filled by the coil spring, the gripping force of the clamp claw 77e is shifted between the packaging bag and the hopper 60 regardless of the clamping force of the gripping member 77c. It can be kept at a certain level of holding power.
[0026]
Further, below the hopper 60 at the position T4 in FIG. 11, a rod 78a of an air cylinder 78 provided substantially coaxially with the hopper 60 is configured to be inserted from the lower surface opening of the hopper 60. Therefore, when the air cylinder 78 is actuated to push up the rod 78a, the tip end surface of the rod 78a comes into contact with the lower surface of the can lid filled in the hopper 60 and pushes up as it is, and the can lid is transferred from the hopper 60 to the packaging bag. Can be replaced. At this time, since the packaging bag is lightly fixed to the outer peripheral surface of the hopper 60 by the bag gripping portion 77, the can lid body does not slip even if the front end portion of the can lid abuts against the bottom portion of the packaging bag. Can be filled into a packaging bag in a fully pushed state. On the other hand, when the can lid body is pushed up with a force stronger than the gripping force of the clamp claw 77e, the clamp claw 77e holds the packaging bag by the coil spring so that the packaging bag is pushed up together. The bag will not be damaged.
[0027]
With the above configuration, when the slider 76 reaches the position T3 or T4 in FIG. When the rodless cylinder 81 is operated and lowered while the slider 76 is fitted in the recess 74, the sliding member 75 connected to the movable portion 82 together with the rodless cylinder 81 is simultaneously lowered, and accordingly, the connecting member 66. The hopper 60 that is integrally connected to the elevating member 65 is also lowered. As will be described later, an empty packaging bag is arranged above the lowered hopper 60, and then the hopper 60 is lifted to be inserted into the empty packaging bag. Further, the hopper 60 is rotated by a quarter. After moving to T4 and operating the bag gripping portion 77 to grip the packaging bag, the air cylinder 78 is operated to refill the can lid from the hopper 60 into the packaging bag.
[0028]
Next, an empty bag supply mechanism D for supplying a packaging bag to the hopper 60 will be described with reference to FIGS. The empty bag supply mechanism D includes an empty bag storage device 85 that stores a bag H that wraps the can lid, and a bag that sucks and conveys the uppermost bag H stored in the empty bag storage device 85 from above. A transport device 86, a bag inversion device 87 for inverting the bag H transported by the bag transport device 86, a bag H received from the bag inversion device 87 and opening the mouth of the bag to be filled with a can lid Further, it is composed of an inverted bag moving device 88 that moves above the hopper 60.
[0029]
As shown in FIGS. 14 and 15, the bag storage device 85 includes a table 90 that can be moved up and down for stacking and placing bags H folded flat, and claws 102 and 102 for temporarily placing the bags H. Have. The table 90 is provided so that it can be raised and lowered by screwing both ends thereof to a ball screw 92 provided on the frame 91. Bag mounting tables 93 are provided on the upper surface of the table 90 at appropriate intervals, and the bags H stacked on the bag mounting tables 93 are mounted. As will be described later, a claw for temporarily placing the bag H is inserted between the bag placing tables 93 and 93. Both ends of the ball screw 92 are rotatably supported by brackets 89 attached to the frame 91, and are rotationally driven by a motor 94 via a gear box 95. When the ball screw 92 is rotationally driven, the table 90 formed by screwing both ends is moved up and down. A back plate 96 and a front plate 97 are provided on both sides (front and back) of the table 90 in order to maintain the laminated state by restricting both sides of the bag H, and a bag is supplied to the center of the front plate 97. For this purpose, a door 98 that opens and closes is attached. The door 98 is configured such that its lower end is attached to be freely tilted by a hinge 100 and is fixed by a knob 101 provided at the upper end.
[0030]
In the above configuration, the table 90 can be moved up and down by the operation of the motor 94, and when the bag H is supplied, first, the table 90 is positioned downward, and the door 98 is tilted forward while pulling the knob 101. The front plate 97 is opened and the bag H is placed on the placing tables 93 and 93. After the bag H is placed on the placing table 93, the door 98 is tightened and the motor 94 is operated again to raise the table 90. And the table 90 is comprised so that it may raise as the number of the laminated | stacked bags H decreases, and keeps the height position of the uppermost bag H constant.
[0031]
The claws 102 and 102 of the empty bag storage device 85 temporarily receive the stacked bags H from the bag mounting table 93 and temporarily place them. The table 90 is lowered and stacked in order not to stop the supply of the bags. Until the raised bag H is raised again, the remaining bag on the bag mounting table 93 is temporarily placed. The claws 102 are attached to a rod 103a of a rodless cylinder 103 and can be raised and lowered. The rodless cylinder 103 moves back and forth (left and right in FIG. 15) along a rod rail 105 provided on the frame 104. With such a configuration, when the table 90 reaches a predetermined height and the bag H placed on the bag placing table 93 is reduced, the claws 102, 102 are moved horizontally between the bag placing tables 93, 93. When the table 90 is lowered, the bag H on the bag placement No. 93 is placed on the claws 102 and 102. Then, the bag H is placed on the bag placing table 93 of the lowered table 90 and raised again. When the bag on the bag mounting table 93 comes into contact with the bag H on which the tabs 102 and 102 are mounted from below, the rodless cylinder 103 is operated to retract the tabs 102 and 102. In this manner, the stacked bags H are always supplied to the empty bag storage device 85, and the uppermost bag H is maintained at a constant height.
[0032]
The bag transfer device 86 is configured such that a vacuum pad 106 is provided at the tip of a rod 107 of an air cylinder 108 attached to a horizontal substrate 109, and the horizontal substrate 109 is driven by a rodless cylinder 110. The vacuum pad 106 faces the uppermost layered bag H. Further, the horizontal substrate 109 has linear guides 111 provided on the lower surfaces of both ends slidably fitted on rails 112 laid on the upper end surface of the frame 91, and the horizontal substrate 109 has a rodless cylinder 110. Reciprocates when activated. The bag transport device 86 can transport the packaging bag onto the bag inversion device 87. That is, the vacuum pad 106 that stands by facing the stacked uppermost bag H is lowered by the operation of the air cylinder 108, and the bag H is sucked and raised again. After the vacuum pad 106 that has sucked the bag H rises, the rodless cylinder 110 operates to move the horizontal substrate 109 onto the bag inversion device 87, and the vacuum pad 106 is lowered by the operation of the air cylinder 108 and sucked. The bag H that has been removed can be placed on the bag inversion device 87.
[0033]
As shown in FIGS. 15 and 16, the bag inversion device 87 is provided with a bag placement plate 117 on a substrate 115 via a support rod 116. The end portion of the substrate 115 is pivotally supported on a shaft 114 provided on the frame 113 on the inverted bag moving device 88 side, and the bag placement plate 117 is substantially parallel to the substrate 115 via a support rod 116. Is provided. From the bag mounting plate 117, the tips of the vacuum pad 121 and the vacuum pad 123 protrude. The vacuum pad 121 is provided on the rod of the air cylinder 120 attached to the support rod 116, and the vacuum pad 123 is provided on the rod of the air cylinder 122 and protrudes from the through hole 124 formed in the bag placement plate 117. . With the vacuum pads 121 and 123, the bag H transferred by the vacuum pad 106 of the bag transport device 86 is sucked and fixed onto the bag placement plate 117. The inverted bag moving device 88 side of the substrate 115 is pivotally supported by a shaft 114, and a connecting member 125 is fixed to a lower surface end portion on the shaft 114 side, and the connecting member 125 is a rod of the Crepis type air cylinder 126. The front end portion of 127 and the shaft 128 are rotatably connected.
[0034]
In the above configuration, when the air cylinder 126 is activated and the rod 127 is extended, the substrate 115 is pushed up via the connecting member 125. At this time, since the end portion of the substrate 115 is pivotally supported by the shaft 114, the substrate 115 is inverted in the vertical direction while rotating around the shaft 114. When the substrate 115 is inverted, the bag mounting plate 117 that is integrally connected is also inverted, and the bag H is delivered from the inverted bag mounting plate 117 to the inverted bag moving device 88. Therefore, when the bag H is placed on the bag placement plate 117 and is sucked and fixed by the vacuum pads 121 and 123, the air cylinder 126 is operated to invert the substrate 115 and the bag placement plate 117. The mouth is faced downward and is chucked by the inverted bag moving device 88.
[0035]
  The inverted bag moving device 88 receives and hangs the bag H held on the bag mounting plate 117 and opens the mouth of the bag H so that the hopper 60 can be inserted. Show. The inverted bag moving device 88 is provided with a chuck member 133 that holds the bag H at the upper end portion of a support column 132 that is erected on a traveling stand 131 that is slidably fitted to a rail 130 that is laid on a frame 113. A bag mouth opening device 134 for expanding the mouth portion of the bag H is provided at the center, and a centering device 135 for centering the mouth portion of the bag H is provided below the bag mouth opening device 134. In addition, FIG.6As shown, a vacuum pad 137 provided on the rod of the air cylinder 136 facing the vacuum pad 123 provided in the bag inversion device 87 is provided.
[0036]
The rail 130 is laid in a direction orthogonal to the substrate 115 and the bag placement plate 117, and the traveling table 131 fitted to the rail 130 is driven by a rodless cylinder 138. The chuck member 133 is attached to a horizontal arm 140 whose height position can be adjusted in the vertical direction above the support column 132. The base portion of the horizontal arm 140 is inserted into a vertical hole 141 formed in the support column 132 and a crank lever 142 is attached. By rotating the crank lever 142, the horizontal arm 140 can be raised and lowered and fixed at an arbitrary height position. The chuck member 133 is composed of an air chuck 144 having a pair of clamping plates 143 and 143 so as to clamp the bottom portion (opposite side of the mouth portion) of the inverted bag H from the thickness direction. The air chuck 144 is positioned directly above the inverted bag H held by the bag placing plate 117 and is configured to be held by closing the holding plates 143 and 143.
[0037]
The bag mouth opening device 134 includes a slide table 146 that slides the claw 139 and an air cylinder 150 that moves the slide table 146 up and down. The claw 139 is positioned substantially at the center of the mouth portion of the suspended bag H, and is formed with a recess 145 into which the edge of the mouth portion can be inserted upward, and is provided on an arm 147 provided on the slide table 146. It is fixed and opens and closes in the direction of separating from each other. The slide table 146 is fixed to a linear guide 149 fitted to a rail 148 provided in a vertical direction on the support column 132, and a rod 151 of an air cylinder 150 fixed to the support column 132 is fixed to the linear guide 149. Therefore, the claw 139 opens and closes in a direction to be separated from each other by the operation of the slide table 146 and moves up and down integrally with the linear guide 149 fitted to the rail 148 by the operation of the air cylinder 150. The clamping plates 143 and 143 of the chuck member 133 and the claw 139 of the bag mouth opening device 134 face each other in the vertical direction.
[0038]
The centering device 135 disposed below the bag mouth opening device 134 is connected to the bag mouth opening device via a leaf spring 157 to a fulcrum opening / closing type air chuck 156 driven up and down by a cylinder 155 with a guide. It is configured by providing a pair of locking bars 158 and 158 that are separated from and in a direction perpendicular to the direction of separation. Since the locking bars 158 and 158 are attached via leaf springs 157, they are flexible and bend when pressed from the side. As shown in FIG. 16, the air cylinder 136 having the vacuum pad 137 is attached to the slide table 159, and is a bag suspended in an inverted state on the column 132 of the inverted bag moving device 88 by driving the slide table 159. Separate from H.
[0039]
With the above configuration, when the bag placement plate 117 rises by driving the air cylinder 126 and the bag H held by the vacuum pad 121 is inverted with the mouth portion facing downward below the holding plate 143 of the chuck member 133, the air chuck 144. With this operation, the holding plate 143 holds the bottom of the bag (opposite the opening), and the slide table 159 operates to advance the air cylinder 136 and suck the mouth of the bag H by the vacuum pad 137. Thereafter, the mouth of the bag H is opened by retracting the vacuum pad 123 and the vacuum pad 137. After opening the mouth portion of the bag H, the cylinder 155 with guide is actuated to raise the pair of locking bars 158 and 158 that have been waiting under the bag mouth opening device 134 to the mouth portion of the bag H. insert. After the pair of locking bars 158 and 158 are inserted into the mouth of the bag, the suction of the vacuum pads 121 and 123 and the vacuum pad 137 is released, and the vacuum pad 123 and the vacuum pad 137 are retracted to hold the bag H as a chuck member. 133 is suspended. Thereafter, the fulcrum opening / closing type air chuck 156 is operated to open the pair of locking bars 158 and 158, and abuts against the fold portion of the bag to open in the width direction to accurately center the mouth.
[0040]
After the locking bars 158 and 158 are opened and centered, the air cylinder 150 is operated to raise the claw 139 to insert the edge of the mouth of the bag into the recess 145, and then the slide table 146 is operated to engage the claw. Open 139. When the claw 139 is opened, the locking bars 158 and 158 that are in contact with the folds of the bag are provided via the leaf springs 157, so that the locking bars 158 and 158 approach each other as the claw 139 opens. As a result, the mouth portion of the bag H is widened in four directions and opened in a substantially circular shape (see FIG. 19). In this way, after opening the mouth portion of the bag H in a substantially circular shape, the fulcrum opening / closing type air chuck 156 is operated to close the locking bars 158 and 158, the guide cylinder 155 is operated and lowered. Then wait. After the locking bars 158 and 158 are lowered, as shown in FIG. 16, the traveling base 131 is advanced by the rodless cylinder 138 and the bag H suspended by the holding plate 143 is moved downward at the position T3 in FIG. It is positioned above the hopper 60 that is pulled down and waiting.
[0041]
Thereafter, contrary to when the hopper 60 is lowered, the rodless cylinder 81 is operated to raise the sliding member 75 together with the movable portion 82 and insert the hopper 60 into the bag H, as shown in FIG. At this time, the tip of the hook-shaped holding plate 61 forming the hopper 60 is pointed, the pointed tip is inserted into the fold portion of the bag H, and the fold portion is the locking bar 158, The hopper 60 is smoothly inserted into the bag H because it is accurately centered by 158. When inserting the hopper 60, the bag is expanded at the tip and the hopper 60 itself is inserted as it is, so that no resistance force acts on the filled can lid. Therefore, even if the insertion speed of the hopper 60 is considerably increased, the alignment state of the can lids does not collapse or reverse inside the bag. Further, since the hopper 60 is inserted in a state where it stands in the vertical direction, the resistance is small and the bag is not damaged, and the laminated state of the can lids is not destroyed.
[0042]
When the hopper 60 filled with the can lid body is inserted into the inverted bag H, the motor 67 is actuated to rotate the rotary shaft 68, and the hopper 60 fixed to the head 69 is inserted into the hopper 60 with the bag H inserted. 11 to the position of T4 in FIG. At this time, when the hopper 60 is raised, the concave portion 74 of the sliding member 75 coincides with the horizontal groove 71 of the guide plate 72, so that the slider 76 is guided by the horizontal groove 71 from the concave portion 74 and slides.
[0043]
Next, the packaging body unloading mechanism E that unloads the packaging body packed in the packaging bag H from the hopper 60 will be described. As shown in FIGS. 2, 21, and 22, the package unloading mechanism E includes a gripping device 160 that grips the package and a robot device 161 including the gripping device 160. In the gripping device 160, parallel open / close type chucks 165 and 166 are provided between a support plate 163 and a presser plate 164 connected to the robot device 161. The parallel open / close chuck 165 grips the lower part of the package (the mouth side of the packaging bag), and the parallel open / close chuck 166 moves up and down so as to grip the upper part of the package (bottom side of the packaging bag). The presser plate 169 is fixed to the slide shaft 167 via the mounting plate 168. The presser plate 169 is curved so that the tip end portion in the plane circumferential direction embraces the package, and the inner surface is a lid that is inserted into a space between the holding plates 61 and 61 forming the hopper 60. A pressing plate 170 is integrally provided. Of the lid pressing plate 170, the lowermost can lid is locked to the lower end portion (lower end portion in FIG. 21) of the lid pressing plate 170 in the parallel open / close chuck 165 in order to prevent the can lid body from dropping. A protrusion 171 is provided.
[0044]
The support plate 163 is attached to the arm 173 of the robot apparatus 161 via an attachment shaft 172. The robot device 161 is CP-controlled so as to follow a predetermined trajectory, and is configured to turn the gripped package upside down and convey it to the next mouth folding device. Since the robot device 161 has a known configuration, a detailed description thereof will be omitted.
[0045]
In order to carry out the package by the package carrying-out mechanism E having the above-described configuration, the rod 78a of the air cylinder 78 in which the hopper 60 of the bagging mechanism C pushes up the can lid in the hopper 60 at the position T4 in FIG. Then, with the can lid placed, the robot device 161 is operated to bring the press plate 169 of the gripping device 160 into an open state and approach the package. Next, the parallel open / close chuck 166 is operated to hold the can lid in the packaging bag together with the packaging bag H by the lid pressing plate 170. Thereafter, when the hopper 60 is lowered together with the rod 78a, only the hopper 60 can be pulled out while the can lid is filled in the packaging bag H. At this time, the can lid body is filled with the upper end pressed against the bottom of the packaging bag, and the lower end is locked by the protrusion 171 so that the aligned state collapses or falls from the mouth. There is no. The packaging body filled with the can lid body is turned upside down from the inverted state by the operation of the robot device 161 while being gripped by the gripping device 160, and the mouth portion is directed upward to the next mouth folding device. Be transported.
[0046]
Next, the can lid relay mechanism F will be described with reference to FIGS. The can lid relay mechanism F has a problem in the bag filling mechanism C or the empty bag supply mechanism D, and the can lid stacked on the columnar body from the can lid stacking mechanism B cannot be paid out to the mechanism. Sometimes it is a relay mechanism for transferring to the storage and bagging mechanism G. The can lid relay mechanism F includes a pair of hoppers 176 and 177 and air cylinders 178 and 179 for raising and lowering the hoppers 176 and 177 on a turntable 175. The turntable 175 is attached to a rotary shaft 182 driven by a rotary actuator 180 via a timing belt 181 and rotates intermittently in half a clockwise direction in FIG. The pair of hoppers 176 and 177 and the air cylinders 178 and 179 are provided symmetrically at 180 degrees apart as shown in FIG. 23 and 25 show a state where the can lid holding cylinder 30 of the can lid stacking mechanism B is in the position S4 (FIG. 8), and the hopper 176 overlaps the can lid holding cylinder 30 substantially on the same axis. Yes.
[0047]
  The hoppers 176 and 177 are provided with four guide bars 187 for accommodating the can lid body in a holding cylinder 186 having a slit 185 formed on one side surface thereof at substantially equal intervals along the outer peripheral edge of the can lid K. A stopper 184 similar to the stopper 63 provided at the lower end portion of the hopper 60 is provided inside the lower end portion of the holding cylinder 186, and the front end portion and the intermediate portion of the guide bar 187 are integrally fixed by a band 190 having a slit 189 formed therein. A stopper 18 for holding the can lid is inserted into a slit 183 provided on the opposite side of the slit 189 in the band 190 at the tip.8It is provided. The slits 185 and 189 are formed on the same line, and are formed so as to face downward when the hoppers 176 and 177 are tilted horizontally, and a claw for pushing out a can lid described later is inserted therein. Since the configuration of the stopper 184 is the same as that of the stopper 63, its description is omitted. Stopper 188 is25, which prevents the filled can lid body from falling when the hoppers 176 and 177 are tilted, and is provided with an arm 191 that is rotated 90 degrees by a rotary actuator 192. The guide bar 187 is inserted into the slit 183 of the band 190 at the tip of the hopper, and falls horizontally into the hoppers 176 and 177 so as to press the upper end surface of the can lid.
[0048]
The holding cylinder 186 is fixed to a rotating shaft 196 supported by a bearing 195 fixed to the lower surface of the rotating table 175, and rotates together with the rotating shaft 196 so that the slits 185 and 189 face downward. And become horizontal. The rotating shaft 196 is formed by fixing a crank 199 connected to a rod 198 of a trunnion mounting type air cylinder 178, 179. Accordingly, the hoppers 176 and 177 are moved up and down by the operation of the air cylinders 178 and 179 with the rotation shaft 196 as an axis, and are rotated to a horizontal state when the can lid body is discharged.
[0049]
In the above configuration, when the can lid holding cylinder 30 of the can lid stacking mechanism A rotates to the position of S4 and overlaps with the hopper 176 substantially on the same axis, the can lid holding cylinder 30 is disposed below the rotating can lid holding cylinder 30. The rod 201 of the air cylinder 200 is inserted from the lower surface opening of the can lid holding cylinder 30 and pushes up the can lid body into the hopper 176 (see FIG. 23). When the tip surface of the rod 201 of the air cylinder 200 reaches the hopper 176, the can lid is replaced with the hopper 176. At this time, the stopper 184 provided at the lower end portion of the hopper 176 is pushed up by the can lid body, and when the lower end surface of the can lid body reaches above the stopper 184, the stopper lid 184 becomes horizontal due to the bias of the spring. Locks to prevent falling from the hopper 176. In this way, after replacing the can lid body from the can lid holding cylinder 30 to the hopper 176, the rotary base 175 is moved half a turn to replace the hopper 177 on the opposite side, and the arm 191 is tilted to collapse the can lid body. Next, the air cylinder 178 is operated to bring the hopper 176 into a horizontal state and wait for the next storage / packing mechanism G to be discharged.
[0050]
A storage and bagging mechanism G configured to receive a can lid body from the can lid relay mechanism F and temporarily stock the bag and manually pack the bag will be described with reference to FIGS. The storage and bagging mechanism G is stocked in the dispensing device 202 for dispensing the can lid from the hoppers 176 and 177, the stock device 203 for stocking the can lid discharged by the dispensing device 202, and the stock device 203. And a bagging device 204 for manually bagging the can lid. As shown in FIG. 23, the payout device 202 is disposed in the same direction so that the hoppers 176, 177 are located directly below when the hoppers 176, 177 are brought down to the horizontal state. ), A stopper 211 for pressing the rear end surface (lower end surface) of the can lid, a traveling table 212 for mounting and fixing them, and a rodless cylinder 213 for horizontally moving the traveling table 212. The stopper 210 is configured such that the arm 214 can be tilted up and down by a rotary actuator 215. The arm 214 presses the front end surface of the can lid together with the arm 191 and presses the arm lid 191 to release the arm 191.
[0051]
The stopper 211 is mounted by pivotally supporting a base portion of an L-shaped hook 216 having a locking portion 219 on a support rod 217 by a shaft 218 and pivotally supporting one end at a substantially central portion of the hook 216. The opposite ends of the flange 220 and the mounting rod 221 that is supported on one end by the carriage are pivotally supported by the shaft 224 on the rod 223 of the air cylinder 222. Accordingly, when the air cylinder 222 is operated and the rod 223 is advanced and retracted, the hook 216 is rotated about the shaft 218, and the locking portion 219 is moved up and down. When the locking portion 219 is raised, the rear end surface of the can lid body is locked from the opening surface of the holding cylinder 186. Thereby, the front end surface and the rear end surface of the can lids in the hoppers 176 and 177 are sandwiched between the arm 214 and the locking portion 219, respectively. The traveling table 212 is mounted on a linear guide 226 that is fitted to the traveling rail 225, and is driven by a rodless cylinder 227. When the traveling table 212 travels, the locking portion 219 is guided by the slit 185 and inserted into the guide bar 187, and further inserted into the slit 189 to push out the can lid. In this manner, the can lid body is pulled out from the hoppers 176 and 177 while being sandwiched between the arm 214 and the locking portion 219.
[0052]
The can lids drawn from the hoppers 176 and 177 by the dispensing device 202 are stored in the stock device 203 and stocked. The stock apparatus 203 transfers the temporary receiving portion 230 that temporarily receives the paid out can lid body, the mounting table 231 formed in a wave shape, and the can lid body from the temporary receiving portion 230 to the mounting table 231. A transposition device 232 is provided. The temporary receiving portion 230 is provided with two mounting bars 233 horizontally so as to be continuous with the guide bars 187 of the hoppers 176, 177 that have fallen horizontally. As described above, the can lid body drawn out from the hoppers 176 and 177 by the arm 214 and the locking portion 219 is placed on the mounting bar 233 as it is. The can lids placed on the placement bar 233 are stacked in a vertical state. As shown in FIG. 28, the mounting table 231 includes a plurality of recesses 234 parallel to the mounting bar 233 except for the horizontal portion 235 provided near the side surface of the mounting bar 233 and at substantially the same height. By forming, it forms in the shape of a wave, and is provided with parallel side plates 236 and 237 that support the can lids stacked in a vertical state. The side plate 236 and the side plate 237 are movable in a direction in which they are separated from each other so that the distance between them can be adjusted according to the length of the can lid.
[0053]
In addition, the repositioning device 232 repositions the can lid body while rolling the can lid body from the placing bar 233 to the placing table 231. The feeding device 241 that can be moved up and down is disposed on the bracket 240, and the bracket 240 is attached to the placing table 231. An air cylinder 242 for driving is provided. The feed member 241 has a feed plate 244 and a guide bar 245 provided in parallel on the lower surface of the elevating rod 243, and a linear guide 247 fitted to a vertical rail 246 laid on the bracket 240 at one end of the elevating rod 243. The rod 249 of the air cylinder 248 provided on the upper surface of the lifting rod 243 is fixed to the bracket 240 while being fixed. Therefore, when the air cylinder 248 is operated, the lifting rod 243 moves up and down while traveling on the rail 246 at one end. The feeding member 241 may be formed in a rectangular box shape in which the lower surface of the lifting rod 243 itself is opened to a size that can fit the can lid without providing the feeding plate 244 and the guide bar 245. Good.
[0054]
A linear guide 253 that fits on a rail 252 that is laid horizontally is fixed to a vertical bearing portion 251 that constitutes the bracket 240, and a rod 255 of an air cylinder 242 that drives the bracket 240 is also fixed. ing. With the above-described configuration, the can lid placed on the placement bar 233 of the stock device 203 by the dispensing device 202 is lowered by the operation of the air cylinder 248 by the lifting rod 243 waiting at the top, and the feed plate 244 And the guide bar 245 sandwiches the side surface. Next, if the air cylinder 242 is operated to move the feed member 241 together with the bracket 240 in the direction of the horizontal portion 235, the can lid is pushed out by the feed plate 244 while being sandwiched between the feed plate 244 and the guide bar 245. However, when it is placed on the horizontal portion 235 and further pushed out, it is fitted into the recess 234. At this time, since the front and back of the can lid body are regulated by the feed plate 244 and the guide bar 245 and both end portions are pressed by the side plates 236 and 237, the can lid body does not fall down or collapse.
[0055]
Next, the bagging device 204 for manually bagging can lids stocked in the stock device 203 will be described. The bag filling device 204 includes a scraping device 260 that scrapes the can lid on the table 231 described above, a moving tray 261 that temporarily moves the scraped can lid to the right side, and a can lid on which a paper bag is placed. Is provided with a bagging tray 262. The scraping device 260 is arranged such that a U-shaped crossing member 263 faces downward so as to freely move up and down on the frame 264, and the frame 264 is attached to shafts 266 provided in parallel on both sides of the mounting table 231 described above. It is fixed to the linear bush 267. As shown in FIG. 27, a pressing shaft 270 is provided at the center of the upper surface of the abutting member 263, and the pressing shaft 270 is slidably inserted into a bush 271 provided on the frame 264, and is compressed coil spring 272. And a ball clip 273 is fixed to the tip. Further, a guide shaft 274 is provided on the upper surface of the moving member 263 so that the moving member 263 moves up and down in a horizontal state.
[0056]
The moving tray 261 has an upper end surface close to the mounting table 231 so that the can lid drops from the mounting table 231, and the dropped can lid can be moved to the right as it is. The length is about twice as long as the length of H.231. When dropping the can lid onto the moving tray 261, sliders 275 and 275 are previously stored in the moving tray 261 in order to prevent the can lids at both ends of the can lid from falling down. The can lid that has fallen into H.275 may be moved to the right along with the slider. In the above configuration, the closing member 263 is normally pulled upward by the urging force of the compression coil spring 272. Therefore, when scraping the can lid, the linear bush 267 is moved along the shaft 266 to position the approach member 263 above the can lid placed on the near side of the placement table 231. Next, the ball clip 273 is pressed to depress the pressing shaft 270 against the urging force of the compression coil spring 272, and the can lid is fitted into the abutting member 263. If the ascending member 263 is pulled toward the front as it is, the can lid body falls into the moving tray 261.
[0057]
The bag-filling tray 262 is substantially the same length as the moving tray 261 and is provided in parallel. The tray 276 for placing the can lid and the bag-mounting table 277 for placing the bag are linearly connected. The tray 276 is provided with an opening guide 278 protruding into the bag mouth on the side of the bag mounting table 277. As shown in FIG. 29, the opening guide 278 is formed with a slit 279 that increases toward the tip of the cylinder so that the tip of the cylinder becomes an inclined surface. A gap is formed between them so that a bag can be inserted.
[0058]
In order to manually pack the can lid, first, the opening guide 278 is inserted into the mouth portion of the bag, and then the can lid is moved to the right side of the moving tray 261 by lifting the can lid. It is only necessary to move to the tray 276 and push the end surface of the can lid while pushing the opening of the bag against the opening guide 278 to push it into the bag.
[0059]
  In the above embodiment, there are generally many right-handed workers, and the mounting table 231 is used to reduce the installation area.InThe moving tray 261 is extended to the right side by the length of the mounting table 231 so that the stock can lid body is once moved to the right side to be packed, but the moving tray 261 is mounted. The length may be the same as the table 231, and the bag mounting table 277 may be configured to protrude to the left side of the mounting table 231.
[0060]
【The invention's effect】
As apparent from the above, according to the automatic bag filling device for can lids according to the present invention, the can lid laminating mechanism B for laminating the can lids transported one by one in a horizontal state, and the laminated cans Since all of the bagging mechanisms C for packing the lids in the bags hold the can lids in the vertical direction, the installation area is reduced compared to the conventional case, and the floor can be used efficiently. In addition, since the can lid body is held in the vertical direction, there is no fear that the alignment state of the can lid body may be broken or reversed when the can lid body is inserted into the bag. it can. In addition, since the can lid stacking mechanism B and the bag filling mechanism C are configured to rotate horizontally, the respective steps can be continued, and also in this respect, the operation can be speeded up and made efficient. In addition, in the can lid supply mechanism B that stacks the can lids horizontally, a buffer is provided in the intermediate portion so that the can lid is temporarily received and the dropping speed is adjusted, so that the can lid is fed without being inverted. be able to. Further, when a predetermined number of can lids are stacked, the lifting rod supported from below is lowered in synchronization with the supply speed of the can lid, so that the lid can be prevented from being inverted during stacking.
[0061]
When filling the can lid body into the bag, the bag is not expanded by the can lid but is inserted into the bag together with the hopper, so that the resistance force from the can lid is not received. Therefore, the alignment state of the can lids does not collapse or reverse. Further, when inserting the hopper into the bag, the bag is suspended from the vertical direction and inserted from below, so that almost no resistance force acts on the bag. Therefore, the bag can be filled smoothly without being damaged. In addition, since the opening of the bag is opened in a substantially circular shape by a claw that slides in a direction orthogonal to the centering member, the centering member is engaged with the fold of the bag and expanded, and the opening of the bag is greatly opened. Since it can be positioned accurately, not only can the hopper be smoothly inserted, but also the resistance of the hopper to the bag can be reduced.
[0062]
Furthermore, since the can lid body is packed in a bag, it is immediately turned over and transferred to the next mouth folding device with the mouth portion of the bag facing upward, so that the can lid in the bag does not fall down. In addition, since the empty bag is vertically inverted from the folded and stacked state and opens the mouth portion directed downward, the opening is easy and the bag is inserted obliquely or horizontally as in the conventional case. Compared with the case, the bag is smoothly expanded in combination with the insertion of the hopper together, and the resistance to the bag can be reduced.
[0063]
Since the can lid from the can lid stacking mechanism B to the bag filling mechanism C is delivered in the vertical direction, even if a malfunction occurs in the bag filling mechanism, the can lid relay mechanism for distributing the can lid to the storage mechanism is also a bag. Similar to the filling mechanism, the hopper can be erected on a horizontally rotating turntable. Therefore, the installation area can be reduced and the payout from the can lid stacking mechanism B can be performed smoothly.
[Brief description of the drawings]
FIG. 1 is a schematic plan view of an entire apparatus with a part omitted according to an embodiment of the present invention.
FIG. 2 is a front view showing an outline of the whole apparatus, part of which is omitted.
FIG. 3 is a plan view showing a configuration of a buffer.
FIG. 4 is a front view showing the configuration of the buffer.
FIG. 5 is a plan view of a lid counting device.
FIG. 6 is a front view of the lid counting device.
FIG. 7 is a front view showing a can lid holding cylinder.
FIG. 8 is a plan view of the can lid holding cylinder.
FIG. 9 is an explanatory front view showing a bag filling mechanism.
FIG. 10 is a partial explanatory view of a hopper in the bag filling mechanism.
FIG. 11 is a partial plan view of the bag filling mechanism.
FIG. 12 is a partial explanatory view showing a relationship between a hopper and a guide plate in the bag filling mechanism.
FIG. 13 is an explanatory view showing a relationship between a hopper and a bag gripping portion in the empty bag supply device.
FIG. 14 is a front view showing an outline of an empty bag supply device.
FIG. 15 is a side view schematically showing the empty bag supply device.
FIG. 16 is an explanatory view showing a part of the empty bag supply device.
FIG. 17 is an explanatory view showing an inverted state of a bag in the empty bag supply device.
FIG. 18 is an explanatory view showing the action of a hook that opens the mouth of the bag in the empty bag supply device.
FIG. 19 is an explanatory view showing a state in which the hopper is inserted into the bag.
FIG. 20 is an explanatory side view showing a relationship between a bag and a hopper in the empty bag supply device.
FIG. 21 is an explanatory side view of a state in which the package body is gripped in the package body unloading mechanism.
FIG. 22 is a plan view of the same.
FIG. 23 is a side view schematically showing the can lid relay mechanism.
FIG. 24 is a front view schematically showing the can lid relay mechanism.
FIG. 25 is a plan view schematically showing the can lid relay mechanism.
FIG. 26 is a plan view showing an outline of a storage and bagging mechanism.
FIG. 27 is a front view showing the outline of the storage and bagging mechanism.
FIG. 28 is a side view schematically showing the storage / bagging mechanism.
FIG. 29 is a partial perspective view showing a part of a bagging tray in the storage / bagging mechanism.
[Explanation of symbols]
A Can lid supply mechanism
B Can lid lamination mechanism
C Bagging mechanism
D Bag supply mechanism
E Package unloading mechanism
F Can lid relay mechanism
G Storage and bagging mechanism
K can lid
10 Transport path
11 Vacuum down stacker
12 Guide bar
13 Can lid supply path
14, 14a buffer
15 Lid counting device
30 Can lid holding cylinder
31 Can lid height adjustment device
40 Rotating plate
41 Guide bar
46 Lifting rod
47 Single-axis electric actuator
48 Stopper
60 hopper
63 Stopper
64 Gripping material
65 Lifting material
66 connecting materials
71 Horizontal groove
73 Vertical groove
74 recess
75 Sliding member
76 slider
77 Bag gripping part
81 Rodless cylinder
82 Moving parts
85 Empty bag storage device
86 Bag conveyor
87 Bag inversion device
88 Inverted bag moving device
90 tables
93 Bag mounting table
94 Motor
106 Vacuum Pad
108 Air cylinder
110 Rodless cylinder
113 frames
115 substrate
117 Bag mounting plate
120, 122 Air cylinder
121, 123 Vacuum pad
132 Prop
133 Chuck member
134 Bag mouth opening device
135 Centering member
136 Air cylinder
137 Vacuum Pad
138 Rodless cylinder
140 horizontal arm
143 Nipping plate
144 Air chuck
145 Recess of claw member
146 Air slide table
150 Air cylinder
155 Cylinder with guide
156 Opening / closing fulcrum type air chuck
157 leaf spring
158 Locking bar
160 Gripping device
161 Robotic device
175 turntable
176, 177 Hopper
178, 179 Air cylinder
183 slit
185 slit
186 Holding cylinder
187 guide bar
188 Stopper device
189 slit
191 Arm
202 Dispensing device
203 Stock equipment
204 Bag filling machine
210, 211 stopper
212 platform
214 Arm
216 hook
230 Temporary receiving part
231 Placement table
232 Loading device
233 Mounting bar
242 Air cylinder
243 lift
244 Feed plate
245 Guide bar
260 Scraper
261 Moving tray
262 Tray for bagging
263 Alignment member 264 Frame 265
278 Opening guide

Claims (2)

A can lid supply mechanism that counts a predetermined number of can lids and supplies them in a horizontal state, a can lid lamination mechanism that laminates the can lids supplied from the can lid supply mechanism in a horizontal state, and a laminated can lid A bag filling mechanism that packs the body into a bag, an empty bag supply mechanism that takes out the folded empty bags one by one and supplies the bag filling mechanism, and a package unloading mechanism that unloads the package packed in the bag,
The can lid supply mechanism is fitted to the periphery of the can lid in a cylindrical supply path in which four guide bars are arranged at equal intervals in the vertical direction along the outer periphery of the can lid, and the can lid drops. A buffer consisting of four gears that adjust the speed, and a screw groove that fits the peripheral edge of the can lid on the outer peripheral surface, and a rotation tooth that drops the can lid one by one and rotation with a part of the outer peripheral edge cut away With a lid counting device consisting of proximity switches close to the plate,
The can lid stacking mechanism is provided with four can lid holding cylinders for stacking the can lids on the periphery of a rotating plate that intermittently rotates by a quarter of a turn, and the can lid holding cylinders are provided with four guides. A plurality of bars that are arranged in a circular shape along the outer periphery of the can lid, fixed at the top and bottom with a frame that has a larger-diameter through hole than the can lid, and the lower frame prevents the can lid body from falling A can lid body height adjusting device is provided below the can lid holding cylinder that overlaps with the lid counting device. The can lid body height adjusting device drives the rod that can be inserted into the can lid holding cylinder when it rises coaxially. And
The bagging mechanism rotates intermittently by a quarter of a turn, and the elevating and lowering is possible by fixing the bowl-shaped holding plates facing each other with a space between them and fixing the lower end of the fixed plate with a stopper on the lower end surface. A hopper, an air cylinder having a vertically movable rod for filling the hopper with a can lid body from the can lid holding cylinder of the can lid stacking mechanism, and a can lid body filling from the can lid holding cylinder of the can lid stacking mechanism A position opposite to the position of the hopper includes a cylinder having a rod that pushes up the can lid in the hopper and fills the packaging bag, and a bag gripping part that grips the hopper together with the bag.
The empty bag supply mechanism includes a table that can be moved up and down and an empty bag storage device having a claw for temporarily placing a packaging bag, and sucks the stored uppermost bag from above to the next bag inversion device. A bag carrying device for carrying, a bag placing plate on which the tip of the vacuum pad protrudes from below via a support rod on the substrate, a bag inversion device that allows the substrate to be tilted, and an inverted bag A chuck member that receives the mouth downward, a bag mouth opening device that opens the mouth of the bag, a centering device disposed below the bag mouth opening device, and a bag mounting plate that protrudes from the bag mounting plate An inverted bag moving device provided with a vacuum pad opposite to the vacuum pad, and the packaging body unloading mechanism accommodates the can lid body with a presser plate fixed to a parallel open / close chuck and having a cover presser plate on the inner surface. A gripping device for gripping the package Automatic bagging apparatus of the can lid the by inverting the top and bottom of the package, characterized by comprising a robot device for transporting to the next process. When the bag filling mechanism and / or empty bag supply mechanism is defective, the can lid body receiving mechanism for receiving the can lid body stacked on the columnar body from the can lid stacking mechanism and the can lid relay mechanism Temporarily stocking the can lid that has been taken out, and a storage and bagging mechanism that can be manually packed, the lid relay mechanism is rotated intermittently by half a turn horizontally. A pair of hoppers and an air cylinder for raising and lowering the hoppers are provided 180 degrees apart on the turntable, and the can lid holding cylinder of the can lid stacking mechanism and the hopper are formed so as to overlap each other in the middle of movement. The storage and bagging mechanism includes a dispensing device that dispenses the can lid body from the hopper of the can lid relay mechanism, a stock device that stocks the dispensed can lid body, and the stock can lid body manually. Bagging Automatic bagging apparatus of the can lid according to claim 1, characterized in that it comprises a device.

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