JP3977531B2 - Spout bag feeder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a supply device for automatically feeding so-called spout bags having cap-type spouts one by one to the packaging machine side.
[0002]
[Prior art]
Conventionally, a spout bag having a cap-type spout and having an unsealed opening on the opposite side is very difficult because the spout portion is large and very difficult to be aligned and transported. The automatic feeding method to the packaging machine by the feeding device was not adopted.
By the way, in a packaging machine that uses spout bags, only the flat bag body without the spout portion is sent to the packaging machine side by the supply device, and then supplied separately to the bag body in the specific process of the packaging machine. The method of sealing and integrating both after setting the pouring spout sent from the part is taken.
In addition, although automatic supply devices are used for bags with chucks and stand pack bags, no supply device has been developed that can automatically supply these bags and spout bags to a packaging machine. It is.
[0003]
[Problems to be solved by the invention]
If there is a supply device that can automatically supply the spout bag to the packaging machine, the mechanism part for manufacturing the spout bag in the packaging machine becomes unnecessary, and the structure of the entire packaging machine is simplified. Moreover, for standard packaging machines that use normal packaging bags that are not spout bags, it is possible to wrap with spout bags by installing a spout bag supply device. There was a need to develop a supply device that could be supplied in an automated manner.
[0004]
An object of the present invention is to provide a supply device for automatically feeding spout bags one by one with their tips aligned to the packaging machine side one by one.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, the first motor device drives a large number of spout bags with the spout portion up and the unsealed opening on the opposite side down. A stocker unit that is fed over the belt conveyer and a frame provided on the belt conveyer is provided with a first belt disposed above the rear portion and a second belt disposed on the second pulley disposed below the front portion. A feeding unit provided to be driven by a two-motor device, the lower surface of the second pulley being movable in the vertical direction by the driving means with respect to the upper surface of the belt conveyor, and a leading unit sent to the front supply end A first nozzle that blows out compressed air toward the spout of the spout bag and a second nozzle that blows out pressurized air toward the spout of the subsequent spout bag; Is provided so that the leading spout bag is separated from the succeeding spout bag by feeding it faster than the feed belt of the belt conveyor, and is sent until the tip of the opening of the spout bag comes into contact with the bag stopper at the supply end, When the second pulley is in the raised position, the opening portion of the spout bag fed to the supply end is lifted by the first swing lever, which is sucked up by the suction cup to the delivery position, and the first swing lever A second rocking lever is provided that sucks the spout bag that is sucked by a suction cup and supplies the spout bag with the opening positioned between the pair of sandwiching pieces provided at the supply position to the packaging machine. is there.
[0006]
[Action and effect of the invention]
(1) A large number of spout bags are supplied while being sprinkled on the belt conveyor of the stocker section with the spout portion facing up and the unsealed opening on the opposite side facing down. When these spout bags are transported forward by the belt conveyor at a slow speed and sent to the position of the second pulley of the feeding unit, they are separated from the subsequent spout bags by the feeding belt that is controlled to feed forward from the feeding belt of the belt conveyor, The tip is transferred to a position where it abuts against a bag stopper at the front supply end.
(2) When the spout bag is brought into contact with the bag stopper and stopped, the feeding of the feeding belt of the feeding unit is stopped, the second pulley is raised by the driving means, and the position is held so that the bag does not return. Compressed air is blown out from the first nozzle toward the spout of the spout bag.
(3) Next, the opening side of the spout bag is attracted by the suction cup of the first swing lever and lifted to the transfer position (I), and is sucked and received by the suction cup of the second swing lever. The spout bag whose opening is brought to the upper position by the ascending rotational movement is supplied between the pair of sandwiching pieces provided at the supply position (II) to the packaging machine.
(4) However, when the leading spout bag is delivered to the second swing lever side, the blowout of the compressed air from the first nozzle stops, and in order to assist the transfer of the subsequent spout bag by the belt conveyor, Compressed air is blown out from the second nozzle toward the spout bags for a certain period of time. When the next spout bag is sent to the position of the second pulley where the feeding unit is lowered, the above operations (1) to (3) are continuously performed, and the spout bag is continuously supplied to the packaging machine side. Is done.
[0007]
This spout bag supply device can stably and automatically feed spout bags one by one between a pair of sandwiching pieces on the packaging machine side. Therefore, it becomes possible to automatically supply the spout bag, which has been a concern, conventionally to the packaging machine, which greatly contributes to the packaging work using the spout bag.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of the supply device, FIG. 2 is a plan view thereof, FIG. 3 is a side view showing the relationship between the feeding unit and the belt conveyor, and FIG. 4 is a perspective view of the spout bag.
[0009]
In the spout bag supply device P shown in FIG. 1, 11 shows a spout bag a shown in FIG. 4 with the spout portion b up and the unsealed opening c on the opposite side down, and a number of these are stacked. It is a belt conveyor provided with the stocker part 10 to supply. The belt conveyor 11 is a circle in which pulleys 12 and 13 formed with two rows of belt grooves at the front end and rear end positions of the machine base 1 are rotatably supported and the upper feed section is exposed on the machine base 1. A feed belt 14 having a cross-sectional shape is stretched over the pulleys 12 and 13, and one pulley 12 is driven to rotate at a low speed by a first motor device 15 attached to the bottom of the machine base 1. Reference numerals 16 and 17 are a pair of guide plates provided on the machine base 1 for guiding both sides of the spout bag a, and the distance between them is freely adjustable according to the width of the spout bag a. . Further, the conveying surface of the belt conveyor 11 is provided with a slight downward slope toward the front supply ends 16a and 17a.
[0010]
As shown in FIG. 2, bag stoppers 18 and 19 projecting inward are attached to the supply ends 16a and 17a in front of the guide plates 16 and 17, and the spout bag a fed into one bag stopper 18 side is provided. The detection lever 20 with which the tip of the lens is brought into contact is supported in a swingable manner. The proximity sensor 21 that senses the detection lever 20 is for confirming the spout bag a and stopping the control valve that controls the vacuum suction action of the suction cup 52 described later when the spout bag is not detected.
[0011]
Above the belt conveyor 11, a feeding unit 25 is provided in which a frame 27 is slidably supported by guide bars 26 fixed to the outer side surfaces of the machine base 1. A first pulley 29 provided with two rows of belt grooves is attached to a rotary shaft 28 pivotally supported on the frame 27 of the feeding unit 25, and a second motor device 30 is attached to the rotary shaft 28 on the frame 27. It is provided so as to be driven via the belt 31.
An arm 33 and a substantially L-shaped lever 34 are rotatably supported on the rotary shaft 28 with a first pulley 29 interposed therebetween, and a second pulley 35 is rotatably provided at the tip thereof. Reference numeral 36 denotes a feeding belt having a round cross section that is stretched over the first pulley 29 disposed above the rear portion and the second pulley 35 disposed below the front portion. Ring-shaped belts 37 and 37 are attached to both ends of the second pulley 35, respectively.
[0012]
The bracket 40 attached to the inner side of the frame 27 is provided with an air cylinder 41 as a driving means, and the tip end portion 42 of the rod of the air cylinder 41 is connected to the free end of the short lever piece 34 a of the lever 34. Accordingly, the air cylinder 41 is provided so that the lower surface of the second pulley 35 is movable at a certain height in the vertical direction with respect to the upper surface of the belt conveyor 11.
[0013]
The feeding unit 25 described above is provided so as to separate the front spout bag a from the subsequent spout bag a by controlling the feed belt 36 faster than the feed belt 14 of the belt conveyor 11, and the front spout bag a When stopped by contacting the bag stoppers 18 and 19, the feeding of the feeding belt 36 is stopped and the second pulley 35 is moved up by the air cylinder 41.
[0014]
Reference numeral 42 denotes a first nozzle provided on a support frame 43 fixed to the inside of the frame 27. The first spout bag a fed from the first nozzle 42 to the front supply ends 16a and 17a is poured. Compressed air is blown out toward the mouth b, and the bag a is provided so as to keep its position so as not to return. Reference numeral 44 denotes a second nozzle provided to blow out pressurized air toward the spout portion of the subsequent spout bag a and assist the transfer of the spout bag a by the belt conveyor 11. The second nozzle 44 is also attached to the support frame 43 in the same manner as the first nozzle 42. Reference numeral 45 denotes a presser guide attached to the support frame 43, which is disposed slightly above the spout portion b of the spout bag a.
[0015]
As shown in FIGS. 1 and 2, reference numeral 51 denotes a first swing lever that is swingably supported by a stand 50 provided in the packaging machine. The first swing lever 51 is provided so that the spout bag a which is fed by the feeding unit 25 and is in contact with the bag stoppers 18 and 19 is sucked by the suction cup 52 and lifted to the delivery position (I). Yes.
55 is supported by a rotary shaft 56 provided on the stand 50 so as to be swingable, and is provided so as to be reversibly rotated between the delivery position (I) and the supply position (II) to the packaging machine. A second swing lever. The second swing lever 55 adsorbs the spout bag a lifted by the first swing lever 51 by the suction cup 57 provided at the tip thereof, and between the pair of sandwiching pieces 58 provided at the supply position (II). It is provided to supply.
The first swing lever 51, the second swing lever 55, and the sandwiching piece pair 58 have the same structure as that disclosed in Japanese Patent Publication No. 6-55604. g indicates a grip pair of a general rotary type packaging machine.
[0016]
The operation of the spout bag supply device P described above is described in the section of the operation of the invention described above and in each component, and thus the description thereof is omitted.
As described above, according to the spout bag supply device, it is possible to stably and automatically feed spout bags, which have been difficult to be supplied by conventional devices, one by one to the packaging machine side one by one. In addition, according to this supply device, it is possible to automatically supply the zippered bag and the stand pack bag to the packaging machine, which is very convenient.
[Brief description of the drawings]
FIG. 1 is a side view of a supply device. FIG. 2 is a plan view. FIG. 3 is a side view showing a relationship between a feeding unit and a belt conveyor. FIG. 4 is a perspective view of a spout bag.
P → Spout bag supply device (I) → Transfer position (II) → Packing machine supply position a → Spout bag b → Spout part c → Opening part 10 → Stocker part 11 → Belt conveyor 16a, 17a → Supply end 18, 19 → bag stopper 25 → feeding unit 27 → frame 29 → first pulley 30 → second motor device 35 → second pulley 36 → feeding belt 41 → air cylinder (driving means) 42 → first nozzle 44 → second Nozzle 51-> first swing lever 52-> suction cup 55-> second swing lever 57-> suction cup 58-> pair of clamping pieces

Claims (1)

  A stocker portion for supplying a number of spout bags with the spout portion facing up and the unsealed opening on the opposite side facing down on the belt conveyor driven by the first motor device, and the belt conveyor The frame provided on the upper side is provided with a first belt arranged above the rear part and a second belt arranged on the lower part of the front part so as to be driven by the second motor device. A feeding unit having a lower surface movable in the vertical direction by a driving means with respect to the upper surface of the belt conveyor, and a first nozzle that blows out compressed air toward a spout portion of a leading spout bag sent to a front supply end And a second nozzle that blows out pressurized air toward the spout of the subsequent spout bag, and controls the feed belt of the feed unit to be fed faster than the feed belt of the belt conveyor. The first spout bag is separated from the subsequent spout bag and is sent until the tip of the opening of the spout bag contacts the bag stopper at the supply end, and when the second pulley is in the raised position, A first swing lever that sucks and lifts the opening side of the spout bag fed to the supply end to the delivery position by a suction cup, and a packaging machine that sucks the spout bag lifted by the first swing lever by the suction cup A spout bag supply device, characterized in that a second swing lever is provided to supply an opening between the pair of sandwich pieces provided at a supply position.

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