JP3723363B2 - Bundling packaging equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a packaging apparatus that narrows down the periphery of a film placed around an object to be packaged and binds the narrowed periphery.
[0002]
[Defects of the prior art]
The conventional twist packaging that twists the mouth of the bag into which the article is packed and binds the torsion part mechanically opens the mouth of the bag and mechanically removes the article from the bag mouth of a limited diameter. There is a drawback that work mistakes are likely to occur in the work to be put into each. On the other hand, when twisting and packaging a film, the packaged material is placed on a previously unrolled film, so there are few operational errors as described above. Has the disadvantage of jumping out of the film.
[0003]
DETAILED DESCRIPTION OF THE INVENTION
The present invention is a device that compensates for any of the above disadvantages, and supports a large number of shaping cylinders arranged at equal intervals on a perfect circle and intermittently rotates the same pitch as the arrangement interval of each of these cylinders; Means for supplying the cut film on the shaping cylinder close to the position at the first position when the rotor is stopped; and a cylindrical shape that moves integrally with the cylinder at the second position in the shaping cylinder moving direction. A means for pushing the film into a shaping cylinder with a hopper to form a cylinder, and a cylindrical hopper of the shaping cylinder while holding a packaged article put into the tubular film through the hopper with a rod-like stopper. Means for pulling up to the mouth, means for twisting the tubular ferm by rotating the packaged object from the outside, and winding a binding material around the twisted portion Kicking constructed by the means.
[0004]
When the shaping cylinder stops in the apparatus, the cylindrical hopper pushes the film into the shaping cylinder, so that the film is formed into a cylinder by forming a number of vertical folds. As long as the shape of the pleats is maintained, the cylindrical shape of the film does not collapse, and the shape of the package to be packaged therein is also maintained in the cylindrical shape.
[0005]
Pull up the tubular hopper to the mouth of the shaping cylinder while pressing the object to be wrapped in the tubular film through the hopper with a stick-shaped stopper, and leave the friction between the film and the cylinder mouth. When the film is rotated from the outside, the film is easily twisted by the friction, and the binding material can be wound around the twisted portion.
[0006]
【Example】
The main shaft 12 supported on the bearing 11 of the machine base 10 in FIG. 1 has a disk-like rotor 13 fixed to the upper end thereof with a key 14, and the rotor 13 is a perfect circle near its periphery as shown in FIG. Six holes 15 are arranged on the top at equal intervals. As shown in FIG. 1, a sleeve 16 that passes vertically through the rotor 13 inside each of the holes 15 supports a lot 17 so as to be slidable in the vertical direction, and the end of a stay 18 that extends laterally from the upper end of each lot. A cylindrical hopper 19 is disposed concentrically in the upper area of each hole 15.
[0007]
A shaping valve fixed under each of the six holes of the rotor is formed by a donut-shaped circular fixed platen 24 fixed to the table 23 on the bearing and a circular movable platen 25 fixed to the lower side of the rotor. The vacuum suction port 27 formed on each wall inner surface and the rotary valve are connected via a tube 28.
[0008]
Therefore, when the rotor 13 is intermittently rotated through the main shaft 12 by the arrangement pitch of the holes 15 by the intermittent drive unit 22 using the motor 21 as a power source, the cylindrical hopper 19 is also intermittently integrated with the rotor 13. Moving. In this case, the wheel 29 supported to roll freely at the lower end of the lot 17 is subjected to the concave-convex action of the groove cam 30, and the cylindrical hopper 19 is displaced up and down to enter the shaping cylinder 26, or Escape from the cylinder.
[0009]
When the rotor 13 stops in FIG. 2, the film 32 having a predetermined area is carried over the hole in the first position. In this case, the cutter 34 cuts the film 32 into a predetermined length, and at the same time, the second suction hole 35 opened on the rotor causes the cut film to be placed on the rotor. To fix. Such a fixing action can prevent the film from blowing off due to wind pressure when the rotor 13 moves intermittently.
[0010]
As shown in FIG. 3, when the rotor 13 stops at the second position, the hopper 19 moves downward to push the film 32 into the cylindrical cylinder 26, and the film is cross-sectionally shaped, for example, a cylinder or a square cylinder. The wrapping product 50 is put into a film through the hopper. At this time, the vacuum suction port in the cylinder 26 supports the weight of the film and the object to be packaged.
[0011]
When the rotor 13 stops at the next position as shown in FIG. 4, the rod-like stopper 51 descends and pushes the article to be packaged 50 toward the bottom of the film. At this time, the lowering level of the article to be packaged is set in the area where the support plate 39 exists. The operation lever 40 of the support plate 39 supported on the tip of the frame 36 on the machine base 10 via a pin 38 is swing-operated by forward and reverse rotation of a crank lever 42 of a motor 41 shaft fixed to the frame. By displacing the support plate 39 to the imaginary line 39a, it is possible to later pull out the cylindrical film containing the packaged object downward.
[0012]
When the hopper 19 is pulled out from the cylindrical film 32 as shown in FIG. 5, the resistance of the rod-shaped stopper 51 acts on the package 50 and prevents the film 32 from being displaced integrally with the hopper 19 due to friction.
[0013]
When the rotor 13 stops at the next position as shown in FIG. 6, the support plate 39 is retracted, and the two arms 55 are rotated by the power of the clamping motor 56 from the outside of the film 50. The film is wound by a means for winding the binding material around the twisted and narrowed portion, that is, by the binding machine 57 . However, a flat film forms a number of folds in the vertical direction to form a cylindrical shape of the film and bind the bag mouth, so that the cylindrical shape of the film is maintained unless the folds are removed. Even if the container is accommodated, the packaging body can be kept in a fixed shape.
[Brief description of the drawings]
[Fig. 1] Side cross-sectional view [Fig. 2] Plan view [Fig. 3] Illustration of packaging process [Fig. 4] Illustration of packaging process [Fig. 5] Illustration of packaging process [Fig. 6] Illustration of packaging process [Fig. Explanation of symbols]
13 ... Rotor 19 ... Cylindrical hopper 25 ... Rotary valve 26 ... Shaping cylinder 27 ... Vacuum suction hole 30 ... Groove cam 32 ... Film 33 ... Film supply means 39 ... Support plate 50 ... Packaged object 51 ... Stick-shaped stopper 56 ... Means for twisting the film 57 ... Means for winding the binding material

Claims (5)

A rotor that supports a large number of shaping cylinders arranged at equal intervals on a perfect circle and intermittently rotates at the same pitch as the arrangement intervals of these cylinders, and the shaping cylinder close to the position at the first position when the rotor is stopped Means for supplying the cut film, and means for pushing the film into the shaping cylinder by a cylindrical hopper that moves integrally with the cylinder at the second position in the shaping cylinder moving direction; Supporting the article to be packaged and the cylindrical film, which are put into the cylindrical film through the hopper, so as to hang down under the cylinder by the vacuum suction force acting on the vacuum suction port on the inner surface of the shaping cylinder, means for raising the cylindrical hopper while pressing after the objects to be packaged with the rod-shaped stopper to the mouth of the shaping cylinders, the shaped Means for twisting the tubular film is rotated across the packaged articles from hanging down in the cylinder from the outside, the packaging device comprising a means for winding the strapping material to the twisted portion. When supporting the article to be packaged and the cylindrical film so as to hang under the cylinder by the vacuum suction force acting on the vacuum suction port on the inner surface of the shaping cylinder, at the same time, the support plate is attached to the lower surface of the article to be packaged. The apparatus according to claim 1. The apparatus according to claim 1 , wherein the rotor includes a second suction hole near a periphery of the shaping cylinder, and the suction hole stabilizes the film on the cylinder. 3. The apparatus according to claim 1 or 2, wherein the bar-shaped stopper for holding the packaged object is configured to push the packaged object into the cylindrical film. In the area where the weight of position and the packaged articles to push the articles to be packaged into the cylindrical inner film bar-shaped stopper is applied to the tubular film, according to claim 2 or set up a support plate of the material to be packaged under zone of the shaping cylinders 4. The packaging device according to 4 .

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