JPS6131923Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to an apparatus for tightening the sealing portion of the bag opening of a square-bottomed bag package and applying an adhesive tape to the tightened portion.

(Background of the Prior Art) When the square-bottomed bag package 1 is configured as shown in FIG. 1, and the square bottom portion is placed vertically downward, the bag opening seal 11 is configured to protrude upward. However, it is also included in the distribution system from manufacturing to sales.

(Problems to be Solved by the Invention) When the bag packaging body 1 having the above-mentioned form is stuffed into a cardboard box by the manufacturer, the bag mouth seal 11 is in a form that protrudes upward so that there is no gap. It is difficult to stuff the bags, so the packing worker manually bends the bag opening seal 11 for each bag and packs the bags. In addition, the tape was pasted manually to prevent the folded portions from returning to their original shape, and packing the boxes was a very time-consuming process.

In order to eliminate these drawbacks, this devised device automatically tightens and folds the opening of the bag by feeding the bag package 1 on a belt conveyor, and the folded part is automatically tightened and folded without using human hands. The object is to attach an adhesive tape and send it out to form a bag package 1' shown in FIG.

(Means for solving the problem) In this invention, square-bottomed bags are placed on a pair of belt conveyors that move intermittently and are fed, and the bag opening seals are removed from both sides using a catcher. A means for pinching and rotating the tape to tighten it, a means for feeding out the adhesive tape from the roll tape and lowering it to a certain length, and a presser bar that presses the lower end of the adhesive tape against the tightened part, cuts the adhesive tape, and releases the catcher claw from the tightened part. means for moving the presser arm that supports the presser bar laterally to apply the adhesive tape to the bagged package; The present invention provides a device that automatically performs various processes consisting of a means for horizontally moving the adhesive tape and lowering the presser metal fitting to detach it from the bagged package after the adhesive tape has been pasted. This is a mechanical solution to the manual work of applying tape.

This devised device includes a pair of belt conveyors running parallel to each other with an interval on the upper surface of the belt receiving plate, square holes at required locations on the belt receiving plate, and a presser metal fitting that moves vertically and horizontally within the square hole. , a roll tape is rotatably mounted above the belt conveyor, a tape feeding mechanism has a feeding roll adjacent to it, and a pair of parallel shafts are mounted adjacently to the shaft holding fittings with an interval between them. A slider is fitted into the shaft, and a tape cutting mechanism equipped with a cutting blade holding stand with a cutting blade attached to the lower end of the slider is arranged.A presser bar is supported below the tape feeding mechanism, and the tape cutting mechanism is equipped with a cutting blade holding stand with a cutting blade attached to the lower end of the slider. A presser arm and a twisting mechanism having a pair of catcher claws adjacent to the presser arm are arranged facing each other.

(Example) Figure 3 is a perspective view showing the outline of this invented device.
A belt receiving plate 3 is mounted on the machine base, and a pair of parallel belt conveyors 4, 4 are provided on the upper surface of the belt receiving plate 3 at an appropriate interval, and the belt receiving plate 3 serves as a stopping position for the bagging package 1. A square hole 5 is provided at the required location, and a presser metal fitting 6 is provided that moves vertically and laterally within the square hole 5, and this presser metal fitting 6 is a presser metal fitting that moves horizontally and reciprocally as shown in Fig. 4A. A pair of slide shafts 8 (only one side shown) is attached to the lower surface of the holding table 7, and a presser metal fitting 6 that slides up and down is fitted into the pair of slide shafts 8, and the presser metal fitting 6 is attached to the upper end of a connecting rod 9 extending from below. Although the lower end of the connecting rod 9 is not shown, it is connected to a cam and a lever mechanism, and the connecting rod 9 moves up and down.
It also operates up and down.

A single-sided adhesive roll tape 2 is rotatably held above the belt conveyors 4, 4, and a tape feeding mechanism 10 having feeding rolls 12 at intervals is provided adjacent to the tape feeding mechanism 10.
In order to contact the adhesive surface of the fed tape 2', the contact surface is small and is formed on the outer circumferential surface that has the ability to feed the tape, and the feed roll 12
Although the drive source is not shown, the rotating shaft of the feed roll 12 is connected to an electromagnetic clutch and a small electric motor with a brake to provide constant rotation, and the adhesive tape 2' of a set length is fed out and hangs down. do. The portion of the tape 2' that comes into contact with the adhesive surface is made of a material that does not interfere with the downward movement of the tape 2'.

At a position adjacent to the tape feeding mechanism, a pair of shafts 18 are attached to a shaft holding fitting 17, and a cutting blade holder 20 is provided that holds a cutting blade 22 at the lower end of a slider 19 that slides on the pair of shafts 18. In the figure, the upper part of the slider 19 is connected to a rotating lever 25 via a connecting fitting, and the lever 25
By rotating in the direction of the arrow, slider 19 moves to shaft 1.
8 to move the cutting blade 22 back and forth and cut the tape 2' with the tip of the cutting edge, but a structure in which the slider 19 is slid using another cam lever mechanism may be used.

A pair of presser arms 13, 13 are provided at a lower position of the tape feeding mechanism 10 to support a presser bar 14 which becomes a round bar, and are provided to reciprocate in the lateral direction and move the presser bar 14 up and down. However, their operating mechanisms are omitted and not shown because they use known mechanisms such as slide shafts, sliders, cams, and levers.

A pair of twisting mechanisms 16 for tightening the bag opening are provided close to the pair of presser arms 13, 13, and mechanisms for forward and reverse rotation and forward and backward movement of flat plate-shaped catcher claws 15, 15 at the tips thereof are known mechanisms. , so it is also omitted and not shown.

(Function) The operation sequence for applying the tightening tape to the bag opening seal 11 will be explained with reference to FIGS. 4 to 6.

Lay the bag package 1 sideways and place it on intermittent conveyor belts 4, 4 so that the bottom side is at the top in the direction of travel.
feed on top. The bagged package 1 has a square hole 5 shown in Figure A.
Although not shown, as it moves upward, a micro switch detects the bagged package 1 and transfers it to the belt conveyor 4,
4 is stopped, and the bottom of the bagged package 1 is held down by the presser metal fitting 6.
It stops when it comes in contact with. As shown in Figure 1, the bagged package 1 that has stopped is moved forward in the direction of the bag opening seal 11 with the catch claws 15 of the pair of twisting mechanisms 16 close to both sides of the bag opening seal 11 open, and then closed when it stops. Then, pinch the bag opening seal 11 and simultaneously turn it 7/8 (315 degrees) in the direction of arrow A to tighten the bag opening until it becomes as shown in Figure H and stops rotating. Simultaneously with the tightening operation of the catcher claw 15, the presser metal holder 7 moves laterally as shown in FIG. This is because when the bagged package 1 is filled with a heavy item, the bagged package 1 may not move laterally even with the tightening action of the bag mouth seal 11. If it does not move due to the tightening action, there is a risk that the bag opening seal 11 will break, and in order to prevent this breakage, the bag package 1 is forcibly moved using the presser metal fitting 6.

Next, as shown in Figure C, the feed roll 12 rotates to feed a predetermined length of adhesive tape downward, and when the lower end of the tape 2' reaches the tightening part, the rotation of the feed roll 12 is stopped. Next, as shown in FIGS. 2 and 3, the presser arm 13 rotates to lower the presser bar 14 and move laterally to press the lower end of the tape 2' against the bag opening tightening portion. After this pressing operation, the lever 25 shown in FIG. 1 rotates to move the slider 19 along the shaft 18, and the cutting edge of the cutting blade 22 cuts the tape 2', returns to its original position, and tightens the tape. The catcher claws 15 on both sides open slightly, causing the twisting mechanism 16 to move backward, release the grip on the bag opening seal 11, rotate 7/8 (315 degrees) in the direction of arrow B, and return to the original position. return. Next, the presser arm 13 moves laterally in the direction of the arrow shown in FIG. The tape pressing force of the presser bar 14 is obtained by a coiled spring 24 attached to the support shaft of the presser arm 13 shown in FIG. 1 and FIG. Next, at the same time as the presser arm 13 stops moving, the presser bar 14 rises and separates from the bagged package 1, and the presser metal fixture holder 7 in the square hole 5 moves in the direction of the arrow shown in Figure E, and the connecting rod 9 moves upward. The presser metal fitting 6 is lowered along the shaft 8, and although not shown, when the presser metal fitting 6 is lowered, a micro switch detects its operation, and the belt conveyors 4, 4 begin to advance intermittently, and the tape 2' The bagged package 1' with the label affixed thereto moves in the direction of the arrow shown in the figure and is sent to the next process. When the bagged packages 1 are supplied one after another at intervals on the belt conveyors 4, 4, the operations of the device described above are repeated to apply the tightening tape.

(Effects of the invention) This invented device automatically wraps the bag opening and affixes adhesive tape by folding the bag in a predetermined direction and placing it on the belt conveyor. Compared to using manual labor, the tape application process is more uniform and efficient, which is effective in saving labor costs and improving work efficiency.
Compared to packaging in which bag openings are folded manually and tape is pasted, the mechanically taped packaging created by this invention has the advantage of a better appearance and the ability to mechanically pack cardboard boxes. be.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the bagged package, Fig. 2 is a perspective view of the bagged package with the bag opening sealed with tape, and Fig. 3
The figure is a perspective view showing the outline of this devised device, Figure 4 is an explanatory diagram showing the process order of bag opening tightening tape application, Figure 5 is a perspective view of the bag opening tightening process, and Figure 6 is the tape pasting process. A perspective view of. 1... Bagged package, 2... Roll tape, 2'
... Tape, 3 ... Belt receiving plate, 4 ... Belt conveyor, 5 ... Square hole, 6 ... Holding metal fitting, 10 ...
...Tape feeding mechanism, 12... Feeding roll, 13...
... Presser arm, 14 ... Presser bar, 15 ... Catcher claw, 16 ... Twisting mechanism, 17 ... Shaft holding, 18 ... Shaft, 19 ... Slider, 2
0... Cutting blade holding stand, 22... Cutting blade.

Claims (1)

[Scope of utility model registration request] A pair of belt conveyors 4, 4 are arranged parallel to each other at intervals on the upper surface of the belt receiving plate 3, square holes 5 are provided at required locations on the belt receiving plate 3, and a presser metal fitting 6 moves vertically and laterally within the square holes 5. A roll tape 2 rotatably mounted above the belt conveyors 4, 4, a tape feeding mechanism 10 having a feeding roll 12 adjacent to the tape feeding mechanism 10, and a shaft holding fitting 17 spaced apart from the tape feeding mechanism 10 having a feeding roll 12 adjacent thereto. A pair of parallel shafts 18 are attached to the shafts 18, a slider 19 is fitted into the shafts 18, and a tape cutting mechanism including a cutting blade holder 20 with a cutting blade 22 attached to the lower end of the slider 19 is provided. At the lower position of 10, presser arms 13, 13 that support the presser bar 14 and move laterally and rotate, and a twisting mechanism 16 having a pair of catcher claws 15 in the vicinity of the presser arms 13, 13 are provided facing each other. A device for applying tape at the opening of a package, characterized in that: