JPH07205282A - Emboss processing apparatus for packing band - Google Patents

Abstract

PURPOSE:To prevent the slackening of a packing band while reducing the longitudinal cracking and meandering thereof by parallelly holding two cylindrical rolls between two bearing stands erected on a bed so as to freely rotate both of them centering around the axes thereof and carving non-linear V-grooves in the peripheries of the respective rolls at a predetermined pitch. CONSTITUTION:In an emboss processing apparatus for a packing band, movable bearing housings 21 are supported on two bearing stands 22 erected on the table surface 17 of a bed 16 in opposed relationship so as to be freely slidable in an up-and-down direction. A roll 2 is supported between the movable bearing housings 21, 21 so as to be freely rotatable centering around its axis 4 and a roll 3 is held between the fixed bearing housings 7, 7 fixed to the bearing stands 22 so as to be freely rotationally driven centering around its axis 24. Further, a large number of zigzag V-grooves 2a, 3a are parallelly carved in the peripheries of the upper and lower rolls 2, 3 at a predetermined pitch.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embossing of a packing band in which a packing band made of polypropylene or the like is inserted into a gap between a pair of rolls installed in parallel and the roll is rotated for embossing. Regarding processing equipment.

[0002]

2. Description of the Related Art In an embossing device for a packing band of this type, when the packing band is manufactured, it is extruded and then stretched about 6 to 7 times in the longitudinal direction. Because of the orientation, the strength was different in the longitudinal direction and the width direction, and as a result, a vertical cracking phenomenon occurred in the packing band. In order to prevent this vertical cracking, a large number of continuous diamond-shaped projections are formed on the peripheral surfaces of the two upper and lower rolls, and the packing band is inserted into the gap between the two rolls. A large number of uneven surfaces were formed on the surface of the packing band by compression, and each recess formed a rhombic pattern to change the micelle orientation to prevent the packing band from being vertically cracked.

[0003]

However, in the packing band manufactured in this manner, since the concave portions have a large number of continuous rhombic patterns, the convex portions form two sets of a plurality of parallel convex stripes intersecting each other. That is, there are a large number of intersections where two sets of a plurality of parallel ridges intersect each other on both front and back surfaces of the packing band.

Therefore, although the vertical cracking phenomenon was prevented,
When packing with a packing machine using this packing band, a large meandering occurs as a first drawback, which has been regarded as a problem in machine suitability in the packing machine. That is, the packing band is heavy and the strength in the longitudinal direction of the packing band is insufficient. Further, since the packing band is stored in the puncher in the band packing machine in a 99-fold shape for a long time, the second drawback is that the packing band has a wavy bending tendency up and down. When the packing band is packed by hand, it is difficult to pack, and when the packing band is attached to a packing machine and used for packing, slack is generated during binding. In addition, a large number of two sets of parallel ridges intersecting each other are formed on the front and back surfaces of the packing band, and there are many intersections intersecting with each other, which means that when packing with synthetic resin fasteners by hand,
Since it has many frictional surfaces, it is suitable for packing work, but since synthetic resin materials are often used, the third drawback is that it is heavy and uneconomical. Further, since the conventional two rolls have the same uneven pattern on the surface as described above, the fourth drawback is that the physical properties of the packing band produced thereby are changed, and the packing band of the packing band is changed. The one that does not meet the purpose of use has not been obtained, and the fifth drawback is that only a certain embossed pattern can be produced.

The present invention has been made in view of the above circumstances, and the packing band manufactured by the embossing device for a packing band according to the present invention has few vertical cracks, and uses the packing band. There is little meandering when packing with a packing machine, and there is no wavy bending up and down inside the puncher, so it can be packed smoothly by hand tightening, and even when used in a packing machine Without causing slack in the binding of the packing band, and by using more synthetic resin material, the packing band does not become heavy and uneconomical, and the physical properties of the band are changed to perform packing. Purpose of the band for use, that is, when used in a packing machine as an example, give strength in the longitudinal direction,
When used for hand-tightening, it is easy to obtain a packing band that has flexibility and suits the purpose of use.
An object of the present invention is to provide an embossing device for a packing band capable of imparting various kinds of embossed patterns with one kind of roll.

[0006]

That is, an embossing device (26) for a packing band according to the present invention comprises a bed (1).
6) with two bearing stands (22,
22) is erected, and two cylindrical rolls (2, 3) are held between these bearing stands in parallel with each other so as to be rotatable about respective shaft cores (4, 24). A large number of non-linear (for example, zigzag or wavy) V-grooves (2a, 3a) are engraved in parallel at a predetermined pitch on the peripheral surface so as not to intersect each other. Further, one roll (2 or 3) can be displaced with respect to the other roll (3 or 2) in its axial direction (arrow A, B direction) or rotation direction (arrow M, N direction). To be done.

The numbers in parentheses are for convenience of showing corresponding elements in the drawings, and the present invention is not limited to the description in the drawings. This also applies to the “claims” and “action” columns.

[0008]

With the above-mentioned structure, according to the present invention, one of the rolls (2 or 3) is moved in the axial direction (corresponding to the embossing pattern to be applied to the packing band (1) with respect to the other roll (3 or 2). By appropriately shifting in the directions of arrows A and B) or in the direction of rotation (directions of arrows M and N) and inserting the packing band between the two rolls in this state, that is, one side of the packing band A number of non-linear firsts without intersections
The ridges (1b) are formed in parallel at a predetermined pitch (oblique angle), and a large number of non-linear second ridges without a large number of intersections on the other surface of the packing band. Article (1
Since c) is formed in parallel at a predetermined pitch so as to intersect with the first ridge (1b) in a three-dimensional manner, if a large number of these bending angles are pressed leftward on one surface, the other The surface is pressed rightward so that the longitudinal micelle orientation is left on one surface of the packing band, and the longitudinal micelle orientation is left on the other surface. In addition, one kind of roll acts so as to be able to give various kinds of embossed patterns suitable for various uses.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of an embossing device for a packing band according to the present invention, and FIG. 2 shows an example of a groove pattern on a peripheral surface of a roll constituting the embossing device for a packing band shown in FIG. It is a figure, (a) is a development view,
(B) is an enlarged cross-sectional view taken along the line AA of (a), FIG. 3 is a view showing a roll shifting mechanism which constitutes the embossing device of the packing band shown in FIG. 1, and (a) is a cross-sectional view. ,
(B) is a sectional view taken along the line BB of (a), FIG. 4 is a perspective view showing a roll shifting mechanism shown in FIG. 3, and FIG. 5 is a package embossed in a state where the roll shown in FIG. 2 is not displaced. 6 is a plan view of the packing band, and FIG. 6 is a plan view of the packing band embossed with the rolls shown in FIG. 2 displaced in the axial direction.
7 is a plan view of the packing band embossed with the roll shown in FIG. 2 displaced in the rotational direction, and FIG. 8 is embossed with the roll shown in FIG. 2 displaced in the axial direction and the rotational direction. 9 is a plan view of the packing band shown in FIG. 9, FIG. 9 is a development view showing another example of the groove pattern on the circumferential surface of the roll constituting the embossing device for the packing band shown in FIG. 1, and FIG.
Fig. 11 is a plan view of the packaging band embossed with the rolls not displaced, Fig. 11 is a plan view of the packaging band embossed with the rolls displaced in the axial direction shown in Fig. 9, and Fig. 12 is 13 is a plan view of the packing band embossed with the rolls shown in FIG. 9 displaced in the rotational direction, FIG.
1 is a plan view of a packaging band embossed with the rolls shown in FIG. 9 displaced in the axial direction and the rotational direction, and FIG.
4 is a development view showing still another example of the groove pattern on the circumferential surface of the roll constituting the embossing device for the packing band shown in FIG. 1.

An embossing device 26 for a packing band according to the present invention has a bed 16 as shown in FIG. 1, and two bearing stands 22, 22 are provided on a table surface 17 of the bed 16 with respect to each other. It is erected in a facing manner.
A movable bearing housing 21 is supported on each bearing stand 22 so as to be vertically slidable along the linear guide grooves 10 and 10. The movable bearing housing 21 is lifted and lowered by turning an adjusting bolt 23. It can be done. Furthermore, these movable side bearing housings 21, 21
A cylindrical roll 2 is held between bearings 5 and 5 so as to be rotatable in the directions of arrows M and N about an axis 4 as a center. A fixed bearing housing 7 is fixed to each bearing stand 22, and a cylindrical roll 3 is centered on the shaft core 24 between the fixed bearing housings 7 and 7 via bearings 25 and 25. Is held so as to be rotatable in the directions of arrows P and Q.

By the way, on the peripheral surface of the roll 2 located on the upper side, as shown in FIG. 2, a large number of zigzag V grooves 2 are formed.
a is engraved in parallel at a predetermined pitch.
With respect to the movable bearing housings 21, 21 (hence,
It can be displaced by an arbitrary distance in the axial direction (with respect to the roll 3) (that is, in the directions of arrows A and B which are horizontal directions orthogonal to the inserting direction of the packing band 1). Similarly, a large number of zigzag-shaped V grooves 3a are engraved in parallel at a predetermined pitch on the peripheral surface of the roll 3 located on the lower side, and the upper roll 2
Can be deviated from the lower roll 3 in the rotational direction, that is, in the directions of the arrows M and N by an arbitrary angle.

That is, on the right side of the shaft core 4 in FIG. 2, as shown in FIGS. 3 and 4, a displacement mechanism in the axial direction and a displacement mechanism in the rotational direction are provided. That is, the shaft core 4 is formed with the flange 4a.
(A) On the left side, the roll 2 is fixed via a washer 8. The washer 8 is available in various thicknesses, and by exchanging the washer 8, the roll 2 can be displaced in the axial direction by an arbitrary distance. A bush 11 is fitted to the shaft core 4 via a key 9, and the bush 1
A ring 12 is slidably fitted to the shaft core 4 (and thus to the bush 11) on the right side of FIG. The bush 11 has five arc-shaped long holes 11
a is formed, and a fixing screw 15 is inserted into each long hole 11 a in such a manner that the fixing screw 15 is screwed into the ring 12.
Further, the bush 11 is formed with a notch 11b, and the ring 12 is provided with a protrusion 12a.
It is formed by being loosely inserted in the notch 11b. Further, two adjusting screws 19 facing each other are screwed into the bush 11 in such a manner that the tips of the adjusting screws 19 are brought into contact with the protruding portions 12 a of the ring 12. A gear 13 is fixed to the right side of the ring 12 in FIG. 3A, and a known drive mechanism (not shown) is connected to the gear 13. Therefore, when the gear 13 is rotationally driven by the drive mechanism, the rotational force is transmitted to the roll 2 via the ring 12, the bush 11 and the shaft core 4, and the roll 2 rotates in the directions of arrows M and N.

Since the packaging band embossing device 26 according to the present invention has the above-described structure, when the packaging band 1 such as a PP band is embossed using the embossing device 26, The procedure is as follows.

First, the gap between the rolls 2 and 3 is properly adjusted according to the thickness of the packing band 1. To this end, by rotating the two adjusting bolts 23, 23 in the forward or reverse direction and moving the movable-side bearing housing 21 up and down as appropriate, the roll 2 maintains the parallelism with respect to the roll 3. A predetermined gap is formed between the three.

In this way, when the gap between the rolls 2 and 3 is adjusted, the packing band 1 is inserted between the rolls 2 and 3 from the left rear side in FIG. 1, and the roll 3 is rotationally driven.
Then, the packing band 1 passes between the rolls 2 and 3 in the direction of the arrow C. At this time, the surface of the packing band 1 is pressed by the convex portions formed between the V grooves 2a of the roll 2 and embossed. Simultaneously with the processing, the back surface of the packing band 1 is pressed by the convex portions formed between the V grooves 3a of the roll 3 to be embossed (see FIG. 5).

The embossing of the packing band 1 is performed as described above. Prior to this embossing, the roll 2 is preliminarily set in relation to the embossed pattern with respect to the roll 3 in the axial direction (arrows A and B). It is possible to give an embossed pattern as shown in FIG. 6 by shifting the direction) by x. To displace the roll 2 in the axial direction with respect to the roll 3, as described above, the flange 4 of the axial core 4 is used.
This is performed by changing the thickness of the washer 8 interposed between the a and the roll 2. Alternatively, roll 2 is pre-rolled 3
It is also possible to give an embossed pattern as shown in FIG. 7 by shifting y in the direction of rotation (directions of arrows M and N). In order to shift the roll 2 with respect to the roll 3 in the rotation direction, after loosening all the fixing screws 15, the adjusting screws 19 are rotated to rotate the bushes 11, and in this state, all the fixing screws 15 are rotated. To tighten. Further, by combining the displacement x in the axial direction and the displacement y in the rotation direction, an embossed pattern as shown in FIG. 8 can be provided.

The packing band 1 thus embossed has a sheet-like base material 1a formed by stretching a synthetic resin such as polypropylene as shown in FIGS. A number of zigzag-shaped firsts on one surface
The ridges 1b are formed in parallel at a predetermined pitch. or,
A large number of zigzag-shaped second ridges 1c are formed in parallel on the other surface of the base material 1a at a predetermined pitch, and the first ridges 1b and the second ridges 1c cross over, that is, These are the base materials 1
When projected in the thickness direction of a (direction perpendicular to the paper surface of FIGS. 5 to 8), they are formed so as to intersect with each other.

When the packing band (the product of the present invention) and the conventional band (the conventional product) were compared in terms of strength, the product of the present invention was lightweight and large in strength as compared with the conventional product. That is, with the conventional product, the width is 15.5 mm and the thickness is 0.6 m.
m, stretched 7.5 times, strength 160 kg, weight 4.8 g / m,
Width 15.5 mm, thickness 0.7 mm, stretched 7.5 times and strength 1
40 kg, weight 4.8 g / m, width 14 mm, thickness 0.35
While the strength was 85 kg and the weight was 2.5 g / m when stretched 8 times, the product of the present invention had a width of 15.5 mm and a thickness of 0.
6 mm, stretched 7.5 times, strength 175 kg, weight 4.6 g /
m, width 15.5 mm, thickness 0.63 mm, stretching 7.5 times, strength 175 kg, weight 4.6 g / m, width 14 mm, thickness 0.3 mm, stretching 8 times strength 105 kg, weight 2.4 g / m
Met.

Next, when the product of the present invention and the conventional product were checked for meandering properties and the like, the conventional product showed a meandering of 5 cm when measured at 2 m, and vertical cracks and slack at the time of binding were sometimes observed. In the product, the meandering was within 2.5 cm when measuring 2 m, no vertical cracks were observed, and there was no slack when binding.

In the above embodiment, FIG. 2 (a) is used.
As shown in FIG.
The case where a and 3a have a zigzag shape has been described.
As shown in FIG. 9, the V grooves 2a and 3a may be formed in a wavy shape. Rolls 2 and 3 with V-shaped grooves 2a and 3a engraved in a wave pattern
When is used, an embossed pattern as shown in FIGS. 10 to 13 is provided.

Further, in these embodiments, FIG.
As shown in FIG. 9A and FIG. 9, the case where the roll 2 in which the center line CL of the zigzag or wavy V groove 2a is vertically straight has been described, but as shown in FIG.
It is also possible to use the roll 2 in which the center line CL of the groove 2a is inclined.

In the above embodiment, the embossing device 26 for the packing band capable of shifting the upper roll 2 with respect to the lower roll 3 in the axial direction or the rotational direction has been described. Roll on the side 3 Roll on the upper side 2
Needless to say, the structure may be displaced in the axial direction or the rotational direction with respect to the above.

[0023]

As described above, according to the present invention,
The bed 16 is provided with two bearing stands 22 and 22 provided upright on the bed 16.
Two cylindrical rolls 2 and 3 are held in parallel with each other so as to be rotatable about respective shaft cores 4 and 24, and a large number of non-linear ( For example,
Since the zigzag or wavy V grooves 2a and 3a are formed in parallel at a predetermined pitch so as not to intersect each other,
The packing band 1 which is manufactured by inserting it between the two rolls 2 and 3 has few vertical cracks, and has little meandering when packed by a packing machine using the packing band 1, and also has a puncher. In order to eliminate the tendency to bend up and down in the inside, it can be smoothly packed when packing by hand tightening, and even when packing for use in a packing machine, without causing slack in the binding of the packing band 1, Furthermore, the packing band 1 does not become heavy and uneconomical because a large amount of synthetic resin material is used, and the physical properties of the packing band 1 are changed so that the purpose of use of the packing band 1, that is, As an example, when used in a packing machine, it is possible to easily obtain a packing band 1 suitable for the purpose of use by giving strength in the longitudinal direction and giving flexibility in the case of hand tightening. Further, one roll 2 or 3 may be displaced relative to the other roll 3 or 2 in the axial direction (for example, the arrow A, B direction in FIG. 1) or the rotation direction (for example, the arrow M, N direction in FIG. 1). According to this structure, in addition to the effects described above, one roll 2 or 3 is appropriately displaced in the axial direction or the rotation direction with respect to the other roll 3 or 2 in accordance with the embossing pattern to be applied to the packing band 1. By inserting the packing band 1 between the two rolls 2 and 3 in this state, one kind of rolls 2 and 3 can give various kinds of embossed patterns suitable for various uses. Even if the embossing pattern of the packing band 1 is diversified, the labor and cost required for manufacturing the rolls 2 and 3 can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an embossing device for a packing band according to the present invention.

2A and 2B are diagrams showing an example of a groove pattern on a peripheral surface of a roll which constitutes the embossing device for the packing band shown in FIG. 1, in which FIG. 2A is a development view and FIG. 2B is A- in FIG. It is an expanded sectional view by the A line.

3A and 3B are diagrams showing a roll shifting mechanism which constitutes the embossing device for the packing band shown in FIG. 1, in which FIG. 3A is a sectional view and FIG. 3B is a sectional view taken along line BB in FIG. 3A. Is.

FIG. 4 is a perspective view showing a roll shifting mechanism shown in FIG.

5 is a plan view of the packing band embossed in the state where the rolls shown in FIG. 2 are not displaced.

FIG. 6 is a plan view of a packaging band embossed with the roll shown in FIG. 2 displaced in the axial direction.

FIG. 7 is a plan view of a packing band embossed with the roll shown in FIG. 2 being displaced in the rotational direction.

FIG. 8 is a plan view of a packaging band embossed with the roll shown in FIG. 2 being displaced in the axial direction and the rotational direction.

9 is a development view showing another example of the groove pattern on the peripheral surface of the roll which constitutes the embossing device for the packing band shown in FIG. 1. FIG.

10 is a plan view of the packing band embossed in the state where the rolls shown in FIG. 9 are not displaced.

11 is a plan view of a packaging band embossed with the roll shown in FIG. 9 displaced in the axial direction.

FIG. 12 is a plan view of a packing band embossed with the roll shown in FIG. 9 being displaced in the rotational direction.

FIG. 13 is a plan view of a packing band embossed with the roll shown in FIG. 9 displaced in the axial direction and the rotational direction.

FIG. 14 is a development view showing still another example of the groove pattern on the circumferential surface of the roll which constitutes the embossing device for the packing band shown in FIG. 1.

[Explanation of symbols]

 1 ... Packing band 2, 3 ... Rolls 2a, 3a ... V groove 4, 24 ... Shaft core 16 ... Bed 22 ... Bearing stand 26 ... Packing band embossing device

Claims (3)

[Claims] 1. A bed (16) is provided, and two bearing stands (22, 22) are erected on the bed, and two cylindrical rolls (2, 22) are provided between these bearing stands.
3) are held parallel to each other and rotatably about respective shaft cores (4, 24), and a large number of non-linear V grooves (2 a,
An embossing device for a packing band configured by engraving 3a) in parallel at a predetermined pitch so as not to intersect each other. 2. The embossing of the packing band according to claim 1, wherein one roll (2 or 3) can be displaced with respect to the other roll (3 or 2) in the axial direction thereof. Processing equipment. 3. The packing according to claim 1 or 2, wherein one roll (2 or 3) can be displaced in the rotational direction with respect to the other roll (3 or 2). Band embossing device.