JP2012232765A - Bag feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag feeder which enables a plurality of kinds of products (objects to be packaged) to be alternately repetitively packaged by an arbitrarily set quantity by a packaging device by allowing a plurality of kinds of different bags to be selectively fed to the packaging device.SOLUTION: The bag feeder 2 has a plurality of bag cases 4 arranged side by side in parallel respectively storing a plurality of kinds of different bags, sucking disks 14 each sucking one end of a bag are provided at leading ends of the bag cases 4, and a swinging link mechanism for swinging the sucking disks 14, and permits the bag cases 4 to be horizontally moved by a horizontally moving mechanism. Each of the rows of the bag cases 4 alternately repetitively feeds a plurality of different bags to the packing device 1 by an arbitrarily set quantity by horizontally moving them to prescribed positions.

Description

  In the present invention, for example, in order to continuously transfer a plurality of types of bags having different printing surfaces to, for example, a rotary packaging device, a plurality of bag boxes each storing a plurality of different types of bags as described above are provided. The present invention relates to a side-by-side bag supply apparatus.

  Patent Document 1 is a stacking type bag supply device, in which a receiving plate for loading and lowering a bag is built in a bag storage device including a bottom plate and side plates erected on both sides of the bottom plate. A support leg is vertically provided below. A rack is engraved in a fixed length range of the support legs, and the rack engages with a gear of a motor fixed on the apparatus side and moves up and down on the receiving plate. A pair of suction cups are provided in an opposed state to the left and right ends of the support plate above the bag storage device having the above-described configuration.

Patent Document 2 is a vertically movable bag supply device, in which a passage frame is erected on the left and right of the upper surface of the machine base, and a large number of bags are faced on pulleys provided at the front and rear lower portions between the passage frames. A conveyor belt that is transported by the belt is routed to form a packaging bag passage having side wall plates on both sides, a stopper is provided at the leading edge of the packaging bag passage, and one bag is placed at the leading end of the packaging bag passage. A suction cup is provided for adsorbing and transferring it to the packaging device.

Patent Document 3 is a laterally movable bag feeding device, in which a pair of guide walls are provided on both sides of a conveyor belt, and a bulky bag formed by stacking a large number of bags is placed on the conveyor belt sideways. Then, each bag is sequentially carried out toward the packaging device with a carry-out sucker that sucks on the bag mouth side of the front bulky bag in the rotation direction of the conveyor belt.

JP 05-124751 A Japanese Patent Application Laid-Open No. 07-17521 JP 2009-248975 A

  However, if you want to wrap different types of packaged items at the same time, for example, in order to wrap different types of parts such as chicken fillet, fillet, peach, teva according to each part or combination, If you want to wrap in a bag that has been printed according to the package, in the conventional bag feeder, the direction of travel of the bag is one-way (one direction). Could not supply. Further, there is a similar problem when it is desired to simultaneously package different packages according to the length in bags having the same bag width but different lengths. For this reason, for example, while selecting a plurality of measuring instruments or input machines for loading different packages of the packaging apparatus, a signal is transmitted so as to load the packages, and a plurality of types of packages can be selected. Even if it was tried to repeatedly wrap an arbitrary set quantity alternately with a wrapping machine on a table, it could not be done.

An object of the present invention is to provide a bag feeding device capable of alternately and repeatedly packaging a plurality of types of products (packaged items) by an arbitrarily set quantity with a single packaging device.

The bag feeder of the present invention includes a plurality of bag boxes each storing a plurality of different types of bags, and a suction cup for adsorbing one end of the bag is provided at the tip of the plurality of bag boxes. A plurality of bag boxes which are horizontally movable by a horizontal movement mechanism, and each of the plurality of bag boxes is in a predetermined position. A plurality of different types of bags are horizontally moved and are alternately and repeatedly supplied to the packaging apparatus by an arbitrarily set quantity.
With the above-described configuration, the bag feeder of the present invention slides a plurality of bag boxes each storing different types in the horizontal direction by a horizontal movement mechanism, so that a plurality of types of items to be packaged can be combined into one packaging device. Repeat as many times as you like.

  The bag supply apparatus of the present invention can alternately supply a plurality of different types of bags in an arbitrarily set quantity to the packaging apparatus.

The top view of the bag feeder of this invention, and a rotary type packaging apparatus Side view of the bag feeder of the present invention Rear view of the bag feeder of the present invention

  Hereinafter, the present embodiment will be described with reference to the drawings. FIG. 1 is a plan view of a bag feeding device and a rotary packaging device of the present invention, FIG. 2 is a side view of the bag feeding device, and FIG. 3 is a rear view of the bag feeding device. As shown in FIG. 1, a bag feeding device 2 is arranged adjacent to the rotary packaging device 1, and an empty bag is delivered from the bag feeding device 2 to the rotary packaging device 1 through a delivery mechanism 3. Has been. Since the rotary packaging device 1 and the delivery mechanism 3 are the same as the conventional ones, detailed description is omitted.

In the bag supply apparatus 2 according to the present embodiment, two bag boxes 4 each storing two different types of bags are arranged on a control box 5, and the two bag boxes 4 and the control box 5 are arranged in parallel. At the same time, it is slidable in the horizontal direction. And this bag supply apparatus 2 can package two types of products alternately and repeatedly by a single rotary packaging apparatus 1 by an arbitrarily set quantity.

For example, if two types of products (packaged items) are A products and B products, printing for A products is performed on one bag box 4A by using the two slidable bag boxes 4 that can slide in the horizontal direction. The attached bag is set, and the bag with the printing for the B product is set in the other bag box 4B. And after repeating the process of taking out the bag for A product from one bag box 4A facing the delivery position P1 of the rotary packaging device 1 and delivering it to the rotary packaging device 1 via the delivery mechanism 3, twice. The double bag box 4 slides and the other bag box 4B moves to the delivery position P1, the bag for the B product is taken out from the other bag box 4B, and the rotary packaging device 1 is passed through the delivery mechanism 3. Repeat the process of handing over to twice. Further, the double bag box 4 slides to the original position, and the bag for the A product is delivered from the one bag box 4 </ b> A to the rotary packaging device 1 via the delivery mechanism 3. Such reciprocating operation of the double bag box 4 is repeated.

In addition, after six bags for A products are repeatedly delivered to the rotary packaging device 1 via the delivery mechanism 3 from one bag box 4A, four bags for B products are obtained from the other bag box. The number of bags to be delivered can be arbitrarily set on the touch panel of the control box 50 such that the products are repeatedly delivered to the rotary packaging device 1 via the delivery mechanism 3.

Further, a control device (not shown) in the control box 50 determines whether the bag for the A product has been taken out from the one bag box 4A or the bag for the B product has been taken out from the other bag box 4B. Then, it is determined which one of the weighing devices for the A product and the B product of the rotary packaging device 1 or the input device 51 should be sent, and the bag for the A product or the B product When the rotary packaging device 1 reaches the loading position P2, the designated A product or B product (packaged product) is loaded into the bag without error.

Next, details of the bag feeder will be described.
In each of the double bag boxes 4 capable of storing two different types of bags, a large number of bags are stacked in layers on the upper surface of the shelf board 6 and stacked on both sides of the shelf board 6 in the same manner as the conventional bag box. A side plate 7 is erected to prevent lateral displacement of the bag. Depending on the size of the bag, the handle 8 provided on the side of each bag box 4A, 4B is rotated to adjust the distance between the side plates 7 to match the size of the bag.

Further, a stopper wall 9 is erected at the tip of one and the other bag boxes 4A and 4B so that the tip of the bag does not protrude. Furthermore, as shown in FIG. 1, a bar-shaped level sensor 10 is arranged in the width direction slightly inside the tips of the one and the other bag boxes 4A and 4B. This level sensor 10 is a long L-shaped metal rod, one end of which is pivotally supported so as to be pivotable in the vertical direction, and is always on the upper surface of the bag. A bag refill warning is then issued.

Further, the shelf plate 6 is provided with a lift mechanism (not shown) arranged below the one and other bag boxes 4A and 4B, so that the stacked bags in the one and other bag boxes 4A and 4B are reduced. The shelf board 6 is raised by the amount of the reduced amount of bags so that a suction error of the bags does not occur by a suction cup described later.

Main suction cups that adsorb and squeeze the upper part of the bag while rotating in an up and down direction by a swing link mechanism 13 that swings in the up and down direction at the top of the tip side of one and the other bag boxes 4A and 4B 14 is arranged, and a sub suction cup 15 for adsorbing and lifting the lower part of the bag is arranged at the upper part on the rear end side. An air hose (not shown) for suction is connected to each of the suction cups 14 and 15, and a negative pressure is applied so that the bag can be adsorbed or released.

Further, a cylindrical air injection cylinder 16 is attached in the upper width direction of the stopper wall 9. Further, behind the sub suction cup 15, a pressing protrusion 17 is arranged at the rear of each bag box so as to hold the lower bag and prevent it from being dragged when the uppermost bag is taken out.

The main suction cup 14 has four fixing blocks 19 fixed to a guide bar 18 in which two bars having substantially the same length as the width of one and the other bag boxes 4A and 4B are arranged in parallel. The main suction cup 14 is attached to the fixed block 19 downward. Each fixed block 19 is fixed to a guide bar 18 corresponding to the side plate 7, and the fixed block 19 is formed with a vertical slit (not shown) in the same direction as the side plate 7. 7, and slides along the upper part of the side plate 7 to swing up and down while drawing an arc.

As shown in FIGS. 2 and 3, the central portion of the guide rod 18 is pivotally supported between the upper portions of the central partition wall 20 via an L-shaped small plate 21 in a side view. The protruding end is connected to a swing link mechanism 13 that swings the main suction cup 14 up and down.

The swing link mechanism 13 will be described with reference to FIGS. A drive motor 22 is provided in the lower left of FIG. 3. The rotational motion of the drive motor 22 is converted into a forward and reverse rotational motion by a cam, and this rotational motion is converted to a rotational lever 23 and a vertical rod. 24 is transmitted to a long horizontal rocking lever 26 supported by the intermediate shaft 25. This oscillating motion of the horizontal oscillating lever 26 is further transmitted to the small plate 21 by a long rod 27 in the vertical direction. By swinging the long rod 27, the main suction cup 14 rises while sucking and rotating the bag via the small plate 21 and the guide rod 18, so that when the clip 3A of the delivery mechanism 3 finishes picking up the bag, the rotation shaft The bag is delivered to the clamp arm 1A of the rotary packaging machine 1 by rotating around 3B.

Note that the lower end engaging portion 28 of the long rod 27 that engages with the horizontal rocking lever 26 is connected to the lower end of the long rod 27 even if the double bag box 4 moves in the horizontal direction, as will be described later. Since the joint portion 28 is slid in the horizontal direction while being engaged with the horizontal swing lever 26, the long rod 27 can also move horizontally together with the two bag boxes 4.

Next, the horizontal movement mechanism 29 of this embodiment will be described.
As described above, the double bag box 4 is attached to the upper part of the control box 5 so as to be inclined toward the delivery mechanism 3 (see FIG. 2). Further, the control box 5 is supported by a horizontal main rod 30 and a horizontal sub rod 31 so as to be horizontally movable. A pillow type shaft unit 33 is attached to a mounting plate 32 on the back wall of the control box 5, and the horizontal main rod 30 is inserted into the pillow type shaft unit 33. Further, a guide 34 is attached to the mounting plate 32, and this guide 34 is supported by the horizontal sub rod 31 as shown in FIG. 2, and moves the control box 5 horizontally together with the pillow type shaft unit 33. I support it as possible.

The control box 5 is moved horizontally by a horizontal movement mechanism 29. The horizontal movement mechanism 29 will be described with reference to FIGS. The rotational motion of the gear motor 35 is converted into a rotational motion in the forward and reverse directions. This turning motion is converted into a turning motion in the left-right direction of the turning lever 39 by the rotating shaft 38 by the horizontal rod 36 and the rod 37. The tip of the rotation lever 39 is joined to the mounting plate 41 via the connecting rod 40. The control box 5 slides in the left-right direction while being supported by the horizontal main rod 30 and the horizontal sub rod 31 by the rotation of the rotation lever 39.

When the bag of the double bag box 4 becomes empty, it is quickly detected by the transmission of light from an optical sensor (not shown). For example, when the last bag remaining in one bag box 4A is sucked by the main suction cup 14 and the sub suction cup 15 and delivered to the delivery mechanism 3, the difference in light transmission from the optical sensor when the bag is present and when it is absent By this, it is detected that there is no bag in one bag box 4A. Based on the signal from the optical sensor, the control device of the control box 50 determines that one of the bag boxes 4A is out of the bag and issues an alarm.

In addition, in the bag supply apparatus 2 of the said embodiment, although the bag box 4 was demonstrated as 2 series, it is not limited to 2 series, 3 series, 4 series, and more than 2 series of multiple series. Needless to say, it may be a bag box. In this case, since the width of the horizontal movement of the bag box is increased, the horizontal movement mechanism 29 is not like the rotation lever 39, but may be used as a horizontal movement mechanism by combining an endless rotation body such as a chain and a sprocket. Good. Needless to say, the link mechanism 13 and the like may also have the same function.
Although the packaging device is the rotary packaging device 1, the packaging device 2 does not have to be a rotary type.

The present invention can deliver different types of packaging bags by using, for example, a bag supply device of a rotary packaging device.

DESCRIPTION OF SYMBOLS 1 Rotary type packaging apparatus 1A Clamp arm 2 Bag feeder 3 Delivery mechanism 3A Clip 3B Rotating shaft 4 Bag box 4A One bag box 4B The other bag box 5 Control box 6 Shelf plate 7 Side plate 8 Handle 9 Stopper wall 10 Level sensor 11 Sensor 12 Lift mechanism 13 Oscillating link mechanism 14 Main suction cup 15 Sub suction cup 16 Air injection cylinder 17 Holding projection 18 Guide rod 19 Fixed block 20 Central partition wall 21 Small plate 22 Drive motor 23 Rotating lever 24 Vertical rod 25 Intermediate shaft 26 Horizontal rocking Moving lever 27 Long rod 28 Lower end engaging portion 29 Horizontal moving mechanism 30 Horizontal main rod 31 Horizontal sub rod 32 Mounting plate 33 Pillow type shaft unit 34 Guide 35 Gear motor 36 Horizontal rod 37 Rod 38 Rotating shaft 39 Rotating lever 40 Connecting rod 41 Mounting plate 50 control Box 51 is turned on machine

Claims (2)

A plurality of bag boxes each storing a plurality of different types of bags are arranged side by side, and a suction cup for adsorbing one end of the bag is provided at the front end of the plurality of bag boxes, and the swing for swinging the suction cup is provided. A bag feeding device provided with a link mechanism,
The plurality of bag boxes can be horizontally moved by a horizontal movement mechanism, each of the plurality of bag boxes is horizontally moved to a predetermined position, and a plurality of types of different bags are alternately and repeatedly set in an arbitrarily set quantity. A bag feeding device characterized by being supplied to the bag. It is equipped with a control device, this control device judges where the bag is taken out from a plurality of bag boxes, judges which measuring device or loading machine out of a plurality of packaging devices should be instructed, The bag feeding apparatus according to claim 1, wherein when the bag comes to a loading position of the packaging apparatus, a packaged article is loaded into the bag from a designated measuring instrument or loading machine.

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