JP2002019735A - Binding material, binding material manufacturing method, and binding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a plastic clip to bind a bag mouth, of which the clamping is less favorable compared with a metal clip. SOLUTION: In a hammer supporting block 20, a passage 22 wherein a thin and flat sliding hammer 21 reciprocates is provided. At the same time, on the confronted surface with the sliding hammer 21 of a hammer base 23 which is adjacent to the hammer supporting block 20, a curved groove 24 which shapes a horseshoe-shape clip 10 into a ring-shape is formed. Then, the open end of a connected article 11 of the horseshoe-shape clips being wound on a reel is set in the passage 22. For this binding device, a heating means 30 made of two cartridges in order to plastically deform the clip made of a thermoplastic synthetic resin is arranged in the hammer support block 20. Also, a cooling water channel 40 is formed on the hammer base 23 in order to harden the plastically deformed clip.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binding material for binding an opening portion of a wrapper or a tube for accommodating an article to be packaged and tightening and sealing.

[0002]

For example, in the binding of bags containing water-containing foods and the like, it is important to take measures to prevent the moisture from leaking from the mouth of the bag. A U-shaped one made of aluminum is known. However, since the metal reaction by aluminum has a bad effect on various electronic controls, there is a great desire to use a plastic binding material. However, plastic binding materials have greater elasticity and are less tight than those made of metal.
The problem is not solved. Tokuhyo Hei 11-50008
No. 7 discloses a method in which a large number of whisker-like projections are provided on the inner surface of a plastic clip and the bag mouth is fastened by each of these projections. As a result, there is a problem that each protrusion is slippery along the wrinkle, and the probability that the clip will eventually fall out of the bag mouth is relatively high.

[0003]

According to the present invention, one of the chained horseshoe-shaped clips is beaten against a hammer base at an opposing portion by a pressing force of a slide hammer operated in a hammer support block, and a zipper or a tube for storing a packaged object. A heating means for heating the clip via the hammer support block; and a heating means for binding the opening of the clip with the clip.
And a cooling means for cooling the clip via the hammer base.

[0004] Since the heating means for heating the hammer support block usually keeps the hammer support block warm, some of the thermoplastic chain clips provided on the hammer support block are softened by the heat. Then, the softening clip is beaten to the opposing hammer base by the pressing force of the slide hammer operating in the hammer support block, so that the clip is formed in an annular shape around the wrapper opening for accommodating the article to be packaged. And tie the sachets together. On the other hand, since the temperature of the cooling means of the hammer base is always low, the circularized clip loses its plasticity and solidifies to maintain the tightening force of the bag mouth.

[0005]

As shown in the embodiment of FIG. 5, a chain 11 in which a number of horseshoe-shaped clips 10 are overlapped and connected to each other is formed by injecting a thermoplastic synthetic resin into a mold as shown in FIGS. When the molding is performed, each clip 10 is connected by a connecting member 12 provided between the ends of the horseshoe, and the connecting member 12 is formed simultaneously with the clip 10 during the injection molding.

FIGS. 8 and 9 show a connecting member 13 different from the above.
In this embodiment, there is no significant difference in that the erection position of the connecting member is between horseshoe ends, but the erection position is slightly lowered from FIG. 6 and 8, the clip 10 is formed integrally with the pleat 14 so as to protrude along the inner vertically long surface. The pleat 14 is effective in preventing the clip 10 from dropping out of the bag mouth as described later. Will do.

In the apparatus for processing the clip, a passage 22 through which a thin slide hammer 21 reciprocates is formed in a hammer support block 20 shown in FIGS. 1 and 2, and is adjacent to the hammer support block 20. The hammer base 23 is provided on a surface facing the slide hammer 21,
A curved groove 24 for circularizing the clip 10 is formed, and the open end of the chain 11 of the horseshoe-shaped clip wound around a reel is installed in the passage 22. In addition, the opening and closing block 26, which supports the hammer support block 20 via the pin 25 in order to secure a passage for guiding the bag mouth into the front area of the curved groove 24, is displaced in the direction of the imaginary line 28 by operating the fluid cylinder 27. It is free. It should be noted, however, that the device having such a configuration is not so different from known devices of this type.

However, in the above apparatus, two heating means 30 made of cartridges are arranged on the hammer support block 20, and the temperature value of the hammer support block 20, which is heated by the heating means 30 as shown in FIG. The power supply circuit 33 is turned on by the switch 34. Turn off to control the temperature of the heating means 30. Also, the cooling water passage 40 formed in the hammer base 23 is
As shown in FIG. 4, it is connected to a passage 42 having a circulation pump 41 to form a closed circuit type cooling means.

The slide hammer 21, which is pushed out at regular intervals, separates and pushes out the lowermost horseshoe-shaped clip 10 from the chain, and plastically deforms the clip along the curved groove 24 of the opposite portion and around the bag mouth. . And at the same time,
The heated clip 10 is hardened by cooling water flowing through the passage 40 of the hammer stand. In this case, the opening / closing block 2
Cooling air from the cooling mechanism 44 connected to the switching valve 4
Spraying through the passage 46 while adjusting the timing at 5 further accelerates the curing of the heated clip.

In FIG. 6, the folds 14 formed on the clip 10 are complicatedly deformed when the clip 10 is annularly deformed and the bag mouth is fastened and clinged to the bag mouth, and the falling rate of the clip 10 from the bag mouth is reduced. Reduce. In this case, depending on the width of the bag to be used or the thickness of the bag, there is a difference in the thickness of the narrowed bag mouth. The bending assist groove 50 is provided, and the annular diameter of the clip 0 can be reduced by bending the assist groove portion.

As shown in FIG. 10, the metal clip 51 is cold-bent into an oval shape as shown in the figure and the bag mouth is tightened. As shown in FIG. 11, the heated clip 1 made of thermoplastic synthetic resin is used.
Since 0 is circular and circular, the hammer table 23 in FIG.
And the package is fitted into the curved groove 24
From falling off. An oscillating plate 54 supported on the hammer support block 20 via pins 53 below the hammer base 23 is connected to a fluid cylinder 55 to form an extruding means, and slides the package that bites into the curved groove 24. It is pushed out in the direction of the hammer 21 and eliminated.

As shown in FIG. 12, the shallow oblique grooves 57 formed in parallel with each other on the inner surfaces of both ends of the horseshoe-shaped clip 10 are formed as shown in FIG.
When the clip 10 is wound around the bag opening 58 as shown in FIG.
Due to the difference in the inclination direction of the relative oblique grooves 57a and 57b, the clipping rate of the clip 10 from the bag opening 58 is improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a processing apparatus, and is a cross-sectional view taken along a line II in FIG. 2;

FIG. 2 is a front view of the processing apparatus, and is a cross-sectional view taken along line II-II in FIG.

FIG. 3 is a block diagram of a temperature control.

FIG. 4 is a block diagram of a cooling control.

FIG. 5 is a side view of a clip chain;

FIG. 6 is an enlarged front view of the previous figure.

FIG. 7 is a sectional view taken along the line VII-VII in the preceding figure.

FIG. 8 is an explanatory view of an embodiment different from FIG. 6;

FIG. 9 is a side view of the previous figure.

FIG. 10 is an explanatory view of a metal clip.

FIG. 11 is an explanatory view of a thermoplastic synthetic resin clip.

FIG. 12 is an illustration of another embodiment of the clip.

FIG. 13 is a diagram illustrating the operation of the previous figure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Horseshoe-shaped clip 11 ... Chain of clips 12, 13 ... Connecting material 14 ... Plait 20 ... Hammer support block 21 ... Slide hammer 23 ... Hammer stand 24 ... Curved groove 30 ... Heating means 40 ... Cooling water passage 44 ... Cooling mechanism 46 ... Passageway 53 Pin 54 Pushing means 55 Fluid cylinder 57 Slant groove

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[Procedure amendment]

[Submission date] July 5, 2000 (2007.5.5)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG.

Claims (7)

[Claims] 1. A chain of thermoplastic synthetic resin horseshoe-shaped clips, which are connected via a thermoplastic synthetic resin connecting member between each horseshoe end of each clip when the clips are molded. How to mold. 2. A binding material which is a horseshoe-shaped clip made of a thermoplastic synthetic resin formed by die molding, and formed by integrally molding a fold in a protruding shape along a longitudinally inner surface of the clip. 3. A molded horseshoe-shaped clip made of thermoplastic synthetic resin formed by mold molding, wherein said clip is formed by integrally molding inclined grooves having different relative directions on inner surfaces of a pair of open ends. The formed binding material. 4. A molded horseshoe-shaped clip made of a thermoplastic synthetic resin formed by die molding, wherein the clip is formed by integrally forming a bending assisting groove on each of inner surfaces of a pair of open ends thereof. . 5. One of the chained horseshoe clips is beaten against the opposing hammer base by the pressing force of a slide hammer operated in the hammer support block, and the opening of the zipper or tube containing the article to be packaged is opened. An apparatus, comprising: a heating unit for heating the clip via the hammer support block; and a cooling unit for cooling the clip via the hammer base. 6. The apparatus according to claim 5, further comprising means for intensively jetting cooling air to a clip wrapped around the wrapper opening by a pressing force of the slide hammer against the hammer base. 7. The apparatus according to claim 5, further comprising means for pushing out the clip wound around the wrapper opening in the direction of the slide hammer from the hammer base by the pressing force of the slide hammer against the hammer base. .