JPH08566B2 - Method for wrapping wound body with film web of stretchable material and pre-stretching device in packaging device using film web of stretchable material - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to packaging of a roll bale in which a plurality of film webs made of a stretchable material are simultaneously spirally wound around an outer peripheral surface of a roll bale of grass which is wound into a roll shape. The present invention relates to a method and a pre-stretching device in a packaging device used for carrying out this packaging method.

More specifically, when the grass cut down in the field is rolled into a roll by a roll baler and harvested as a roll bale, the roll bale of the grass is made of a synthetic resin material for the outer peripheral surface thereof. It may be covered by winding a film web to be silaged. At this time, the outer peripheral surface of the roll bale of grass is wrapped around a film web made of a stretchable material by spirally winding and covering, and in a packaging apparatus used for this, the film web to be wound is fed out from the bundle. By the way, the present invention relates to an improvement on a pre-stretching device for pre-stretching before winding on a roll bale.

[0003]

2. Description of the Related Art Conventional means for winding and wrapping a film web around a roll bale, which is a wound body, is a stretchable material as shown in FIGS. A roll R of a film web f formed and wound to have a width of 500 mm is supported on a roll insertion shaft a provided on a machine base K, and the unwinding end of the film web f unwound from the roll R is set at a peripheral speed. While being guided to a wound body B through a pre-stretching device A formed by a pair of rolls b and c that rotate differently, while rotating the wound body B around its axis center at a predetermined speed, With the rotation axis line in the direction orthogonal to the axis of the wound body B, it is rotated in the direction shown by the arrow in FIG. The processed film web f is wound around a spiral. Means have been taken.

This method has a problem that it is not efficient.
Therefore, as shown in FIG. 3, a pre-stretching device A including a roll insertion axis a for rotatably supporting the roll R of the film web f and a pair of rolls b and c rotating at different peripheral speeds.
The machine bases that are assembled as a unit are paralleled in two, and
The film webs f · f fed from the pre-stretching device A of the respective units are arranged side by side in such a manner that they are displaced in the width direction thereof so that a part of the film webs is superposed, whereby the film webs fed out. A means has been developed for expanding the winding width when winding f · f around the peripheral surface of the body B to be wound to approximately 1 and a half times so that it can be wound in a wide width.

As another embodiment, as shown in FIG. 4, a roll insertion shaft a and a roll insertion shaft a for supporting the roll R of the film web f by the means shown in FIGS. The pair of rolls b and c of the pre-stretching device A are extended in the axial direction to have a width of 750 mm.
There is a means of using a roll R of a wide film web f, which is 1.5 times wider than a normal 500 mm wide film web f.

As yet another form, as shown in FIG. 5, a pre-stretching device A is constituted by an idler roll d and a non-slip roller e whose rotation is braked to form a film web f. Is preliminarily stretched between the non-slip roller e on which the brake is applied and the wound body B, and the roll R of the film web f is mounted on the machine stand on which the prestretching device A is mounted. A plurality of (2 to 3) roll insertion shafts a for loading are installed in advance, whereby the film webs f and f fed from the plurality of rolls R are partially polymerized to be wide. In this state, there is a means for winding around the wound body B without pre-stretching.

[0007]

However, in the first means shown in FIG. 3, these means are the pre-stretching device including the roll insertion shaft a for loading the roll R of the film web f. Since A requires two sets, it becomes expensive and takes up space. The roll R of the 750 mm wide film web f cannot be used. As shown in FIG. 6, when the winding of the film web f around the wound body B is changed to one winding and when the overlapping amount of the film webs f and f when changing to two windings is changed. In addition, the height must be changed for each heavy machine stand K,
It's troublesome. That is, in the case of changing to the single winding, the pre-stretching device A on the side to be used is set to the machine base K in order to align the wound body B with the center of the film web f fed in the width direction. It is necessary to raise or lower it, and when changing the overlapping amount, similarly, in order to align the widthwise centers of the film web f, one of the preliminary stretching devices A is moved up and down together with the machine base. Further, it is necessary to move the other pre-stretching device A up and down together with the machine base. The upper film web roll R has to be lifted high as shown in FIG. 7 when it is set on the roll insertion shaft a provided on the machine base, which is troublesome. There is a problem such as.

In the second means shown in FIG. 4 using the wide film web f of 750 mm, the film web roll R of 750 mm width is not common and is hard to obtain. Generally, a 500 mm wide film web roll R has a length of 180 meters and a 750 mm wide film web roll has a length of 120 meters (the weight can be set in a pre-stretching device), so that the film web f disappears quickly. The number of times the film web roll R is detached and attached increases. A film web roll R that is long in the axial direction is raised to the height of the pre-stretching device as shown in FIG.
It is troublesome to set the film web roll R vertically upright. There is a problem such as.

Further, in the third means shown in FIG. 5, the distance D (FIG. 5) between the non-slip roller e for stretching the film web f and the wound body B is set to the wound body B.
Depending on the shape of the film, it is necessary to lengthen the film, so that the film web f is apt to be broken or stretched unevenly. As the two film webs f and f are shown by hatching in FIG. 9, they are stretched while partially overlapping and wound around the wound body B, so that one film web f is wound on the wound body B. The wound body B of the film web f is more wound than the winding means B
Adhesion to is improved, but a. The film web f is easily wrinkled due to the fact that the film web f comes into close contact with the peripheral surface of the wound body B while it is stretched and the stretching interval is long. B. When stretching
Since the thicknesses of the overlapped portion and the non-overlapped portion of the two film webs f · f are twice different, the tensile strength is partially different and the stretch unevenness is likely to occur. C. When the characteristics of the two film webs f, f are different from each other, uneven stretching or breakage easily occurs in the overlapped portion. Further, when the upper film web roll R is set on the roll insertion shaft a of the machine base K, it has to be lifted high as shown in FIG. 7, which is troublesome. There is a problem such as.

The present invention has been made in order to solve these problems in the conventional means, and a plurality of elastic materials which are partially polymerized and wound around the peripheral surface of the body to be wound are used. The film web is polymerized after they have been stretched, and then a plurality of film webs made of a stretchable material and a packaging means that is wound around the peripheral surface of the wound body are stretched and then polymerized. In addition to allowing the film to be guided to the wound body, it is desirable to use one wide film web for efficient packaging and to use two film webs so that some of them overlap each other. And a pre-stretching device for a packaging device that allows the user to easily perform the wrapping method and the operation of adjusting the overlapping amount of two film webs without moving the machine base. For the purpose of theft.

[0011]

In the present invention, as means for achieving this object, two vertical directions for loading film web rolls provided in parallel in one machine K on the left and right sides. A film web roll R made of a stretchable material is rotatably and axially rotatably supported on each of the roll insertion shafts so as to partially overlap the film web drawn therefrom, and two film web rolls R drawn from the film web rolls are supported. Guide the film web to the peripheral surface of the body to be wound through the peripheral surface of a long non-slip roller that is vertically supported on the machine base, and determine the peripheral speed of the non-slip roller from the speed of the film web drawn from the film web roll. By controlling it so that it is faster, by pulling the film web from the film web roll by rotating the wound body,
The film webs are separately stretched between the film web roll and the peripheral surface of the non-slip roller, and immediately after the stretching, they are polymerized and adhered on the peripheral surface of the non-slip roller, and the film web in the polymerized state is wound. In a method of wrapping a wound body with a film web of a stretchable material that is wrapped around the peripheral surface of a roll, two roll insertion shafts and a non-slip roller that are juxtaposed are formed vertically long and two rolls are inserted. Of the shafts, the wide film web roll is loaded only on the roll insertion shaft that is loaded by displacing the film web roll downward, and the roll insertion shaft that is loaded by displacing the film web roll upward is set to the film. With the web roll not loaded, the film web pulled out from one wide film web roll is And the packaging performed by winding the film web rolls on each of the two roll insertion shafts and winding the two film webs drawn from the rolls around the peripheral surface of the wound body. , One of the two
Wrapping with a film web of a stretchable material, characterized in that the peripheral surface of the wound body is wrapped by winding the film web, which is selected according to the conditions required for packaging the wound body. It proposes a body packaging method.

Along with this, a plurality of vertical roll insertion shafts are installed side by side on the machine base,
At each position near the roll insertion shafts, there is provided a control belt device that presses against the peripheral surface of the film web roll fitted into the roll insertion shafts and rotates endlessly. Is supported on the machine base,
A film of a stretchable material, characterized in that the rotational axis of the non-slip roller and the rotational axis of the drive pulley of the control belt device are mechanically conducted so that the peripheral speed of the non-slip roller is higher than the peripheral speed of the drive pulley. The present invention proposes a pre-stretching device in a packaging device using a web.

[0013]

Embodiments Next, embodiments will be described in detail with reference to the drawings. FIG. 10 is a perspective view of a pre-stretching device W in a packaging apparatus using a film web of a stretchable material according to the present invention, a developed view of the same as above in FIG. 11, FIG. , 22 and 22 are roll insertion shafts, 4 is a non-slip roller, and y and y are control belt devices.

The machine base K is composed of a lower plate 3, an upper plate 2 and a support column 1, and the lower plate 3 is a support frame M provided on a machine body (not shown) which can be installed at a desired location.
The upper plate 2 is fixedly supported on the upper end of the
Is fixedly supported on the upper end portion of the column 1 which is erected on the upper surface of the column 1. As a result, the upper plate 2 and the lower plate 3 are vertically opposed to each other with a distance of the vertical height of the column 1.

The non-slip roller 4 is rotatably supported between the upper plate 2 and the lower plate 3.
The rotation shaft 4a of the non-slip roller 4 is freely supported by bearings 5 and 5 provided on the upper plate 2 and the lower plate 3, respectively. The non-slip roller 4 has such a length as to stretch two 500 mm wide film webs at once with a part of them overlapping in the width direction, and below the lower plate 3 of its rotation shaft 4a. Sprockets 6, 6 are mounted in parallel in two rows on the protruding lower end side (FIG. 11).

The control belt device y is provided with a drive pulley 9 provided on a short shaft 7 provided on the lower plate 3 and an idler pulley 17 pivotally supported on respective rotating ends of arms 13 and 14 rotatably provided on the lower plate 3. 17 includes a flat belt 21 that is endlessly wound around.

The short shaft 7 is freely rotated by being supported by bearings 8 fixed to the upper surface side and the lower surface side of the lower plate 3. A drive pulley 9 is fixedly mounted on the upper end of the shaft 7, and a sprocket 10 is mounted on the lower end thereof. The sprockets 10 are arranged in parallel on the lower end of the rotary shaft 4a of the non-slip roller 4 in two rows. The sprocket 6 provided on one side is provided with a chain 11 on one of the sprockets 6.
It is conductively connected via.

Reference numeral 12 denotes a fixed shaft which is supported in the vicinity of the short shaft 7 in parallel with the shaft 7 and is supported by the lower plate 3.
The boss portions 13a and 14a at the base end portions of the arm 13 and the arm 14 are rotatably fitted and inserted therein. These arms 13 and 14 freely rotate around the shaft 12. On the rotating end sides of these arms 13 and 14,
The upper and lower shafts 15 and 16 are fixedly mounted, and the idler pulley 1 is attached to each of the shafts 15 and 16.
7 and 17 are supported by loose fitting. And, in the arm 13,
A spring 18 is provided between the lower plate 3 and the lower plate 3 for urging the arm 13 to rotate in the X direction about the shaft 12 in FIG. 12, and the arm 14 is provided between the arm 14 and the lower plate 3. , A spring 19 for urging the space between them to rotate in the expanding direction is connected.

Numeral 20 is a metal fitting for fixing and holding one end of the arm 13 at the most expanded position when the arm 13 is rotated in the X direction in FIG.

The drive pulley 9 and the two idler pulleys 17 and 17 are located at substantially the same height, and the flat belt 21 described above has these three pulleys 9 and 17 and 17.
They are endlessly wrapped around the outer circumference of the. The flat belt 21 is always tensioned by the above-mentioned two springs 18 and 19.

By these, the control belt device y is assembled. As shown in FIG. 10, the control belt devices y are provided in a pair so as to face each other in a pair, and one of them is installed so that the position of the flat belt 21 is higher than that of the other. . At this time, in the control belt device y on the higher side, the short shaft 7 of the control belt device y is formed to be somewhat long, and the sub lower plate 3a located one step higher is provided on the upper surface side of the lower plate 3. A shaft 7 is rotatably supported on the lower plate 3 and the sub lower plate 3a through bearings 8 and 8. Also, arm 1
The shaft 12 for rotatably supporting the shafts 3 and 14 is supported so as to be bridged between the lower plate 3 and the upper plate 2, and the arm 13 is firmly fixed at a position higher than the lower plate 3. The boss portions 13a and 14a at the base end of 14 are pivotally supported.

The roll insertion shaft 22 rotatably supports a film web roll R, which is a bundle in which a film web f of a stretchable material is wound into a predetermined length with a paper tube as a roll core, by being inserted. It is a shaft and is formed to have a length that is bridged between the upper plate 2 and the lower plate 3 of the machine base K.

The roll insertion shaft 22 is provided at its lower end side with a horizontal axial rod 23 projecting laterally in a side branch shape. The axial rod 23 is provided on the lower surface side of the lower plate 3. Two
By skewing through the through holes formed in each of the support plates 24, 24, the support plate 24 is supported on the machine base K so that it can be raised and lowered about the shaft rod 23. Then, when the roll insertion shaft 22 is turned to the side lying down about the center of the shaft rod 23, the lower end portion of the roll insertion shaft 22 positioned below the shaft rod 23 becomes a machine stand when the posture becomes substantially horizontal. By colliding with the lower surface side of the lower plate 3 of K, the further rotation of the lodging side is prevented,
It is in a state of being supported by the machine base K in a substantially horizontal posture.

When the roll insertion shaft 22 is rotated upright about the shaft rod 23 from this state, the upper end of the roll insertion shaft 22 is fitted into the notch 2a formed in the peripheral edge of the upper plate 2. This means that you will have an upright posture.

On the upper surface side of the upper plate 2, a locking metal fitting 2 which is freely rotatable around the support shaft 28 along the upper surface of the upper plate 2.
7 is provided. The locking metal fitting 27 is controlled by the biasing force of the spring 29 and the restriction of the stopper 30 so that the hook portion 27a provided at the rotating end of the locking metal fitting 27 always occupies the position where it overlaps with the cutout portion 2a. There is. Then, as described above, the upper end portion of the roll insertion shaft 22 that is rotated upright about the shaft rod 23 abuts on the arc-shaped outer peripheral surface of the hook portion 27a, so that the hook portion 27a is released. In addition, the roll insertion shaft 22 rotates around the support shaft 28 against the bias of the spring 29, and the cutout portion 2 passes over the hook portion 27a that the roll insertion shaft 22 has pushed away.
When it is fitted into a, the locking metal fitting 27 is restored and rotated by the urging force of the spring 29, so that the hook portion 27 thereof is
a holds the upper end of the roll insertion shaft 22 as shown in FIG. 10, and holds the roll insertion shaft 22 in an upright posture.

A string 31 for releasing operation is linked to the locking fitting 27 on the tail end side beyond the support shaft 28. By pulling the string 31, the locking fitting 27 is spring 29. It rotates so as to open the notch 2a against the bias of. Then, as a result, the roll insertion shaft 22 is rotated around the shaft rod 23 toward the laid side.

A tube 26 having upper and lower bearings is fitted on the roll insertion shaft 22 so as to be rotatable and automatically move in the axial direction. This tube 26
Is for loading the film web roll R into the roll insertion shaft 22 rotatably and movably in the axial direction. The outer diameter is formed into a tube corresponding to the inner diameter of the paper cylinder of the core material of the film web roll R. There is. And the tube 26
Is rotatably fitted to the roll insertion shaft 22 at its height position by abutting the lower end against a disc-shaped support plate 25 attached to a portion of the roll insertion shaft 22 which is located close to the lower end. It is in a state.

A support plate 25 mounted on the roll insertion shaft 22 so as to abut the lower end of the tube 26 is slidably fitted in the roll insertion shaft 22 in the axial direction and fixed by a push bolt 25a. By releasing the tightening of the push bolt 25a, the push bolt 25a moves freely in the axial direction of the roll insertion shaft 22 and is fixed at that position by tightening the push bolt 25a again at the displaced position. By this displacement adjustment, the height position of the film web roll R loaded on the roll insertion shaft 22 is adjusted.

The support plate 25 is used for the tube 2
When the film web roll R is inserted into the outer periphery of the tube 26, the lower end face of the paper tube of the roll core is formed into a disk shape having a diameter slightly larger than the outer diameter of the tube 6. Support plate 2
The upper surface of the peripheral edge portion of 5 is contacted. As a result, when the film web roll R loaded on the roll insertion shaft 22 is rotated with respect to the roll insertion shaft 22 together with the tube 26 by pulling out the film web f, the film web roll R itself Sliding between the lower end surface of the paper core of the roll core and the upper surface of the peripheral edge of the support plate 25 due to the weight provides a brake to the rotation of the film web roll R and causes an overrun in the rotation. It acts so as not to produce.

As described above, the roll insertion shaft 22 constructed as described above is provided at a position near each of the control belt devices y and y which are installed in parallel with the machine base K in a pair on the left and right. 12, each control belt device y is installed at a position adjacent to the outer peripheral surface of the flat belt 21 between the drive pulley 9 and the pulley 17 pivotally supported by the arm 13. As a result, when the film web rolls R are loaded on the roll insertion shafts 22, the outer peripheral surfaces of the flat belts 21 of the respective control belt devices y are pressed against their outer peripheral surfaces as shown in FIG. I am going to do it.

In FIG. 12, B is a body to be wrapped (a veil formed by rolling grass into a roll shape) and is supported by a rotary table (not shown) which is supported by the machine body on which the machine frame K is mounted. There is.

This rotary table is a conventionally known one, and by driving it, the bail B is rotated in the direction of the arrow around the center point O in FIG. 12 with the rotation axis line in the direction orthogonal to the axis line thereof. Works like. Also, at this time,
It operates to roll the bail B for rotation about its axis.

The embodiment apparatus configured as described above operates as follows. [Set of film web rolls R] When the film web rolls R ... Are loaded on the roll insertion shafts 22 ... First, the arms 13 of the respective control belt devices y are loaded.
12 is rotated in the X direction in FIG. 12, and the locking rod 13a on the base end side of the arm 13 is locked to the metal fitting 20. As a result, in the control belt device y, as shown in FIG.
It is kept separated from 2.

Next, the cord 31 is pulled to release the hugging of the upper end side of the roll insertion shaft 22 by the hook portion 27a of the locking fitting 27.

Next, the roll insertion shaft 22 is pulled down toward the outside of the machine base K. As a result, the roll insertion shaft 2
2 rotates in a horizontal posture about a side branch-shaped shaft rod 23 provided at the lower end. When the lower plate 3 is in a substantially horizontal position, the lower end thereof abuts the lower surface of the lower plate 3 to be held in that position.

Next, the film web roll R with the axis lined up is inserted from the tip end side of the roll insertion shaft 22 which is projected in the lateral direction of the machine base K in a substantially horizontal posture, and the roll core paper is placed. The tube is fitted around the tube 26 fitted to the roll insertion shaft 22, and the support plate 25 provided on the roll insertion shaft 22 is brought into contact with the end surface of the paper core of the roll core. At this time, the winding direction of the film web f of the film web roll R is set to the state shown in FIG.

Next, from this state, the roll insertion shaft 22 is pulled up. Thereby, the upper end portion of the roll insertion shaft 22 abuts on the outer peripheral surface of the hook portion 27a of the above-described locking metal fitting 27 provided on the upper surface side of the upper plate 2, and pushes the hook portion 27a away to form the cutout portion. 2a, and after the fitting is finished, the locking metal fitting 27 is restored and rotated by the urging force of the spring 29, and the hook portion 27a of the locking metal fitting 27 causes the locking metal fitting 27 to rotate.
The upper end of 2 is held and locked. This state is maintained unless the string 31 described above is pulled.

Next, the locking of the metal fitting 20 is released. As a result, in the control belt device y, the arm 13 of the control belt device y rotates in the X direction in FIG. 12, so that the outer peripheral surface side of the flat belt 21 stretched endlessly is the outer peripheral surface of the film web roll R. Then, as shown in FIG. 12, the film web roll R is loaded by pressing.

At this time, the width of the film web roll R loaded on the roll insertion shaft 22 may vary widely in the axial direction. In this case, the fixing position of the support plate 25 provided on the roll insertion shaft 22 is adjusted by changing it vertically. This adjustment is applied to the roll insertion shaft 22 for loading the film web roll R on the lower side as shown in FIG.
4, the roll insertion shaft 2 which is possible within the range of the zone U and which is loaded with the film web roll R on the upper side.
2 is possible within the range of zone V in FIG.

The adjustment performed by changing the position of the support plate 25 is used for adjusting the height position of the film web rolls R and R and adjusting the overlapping amount of the film webs f and f drawn from them. To be done.

[Packaging of the wound body] The film web f is pulled out from the lower film web roll R, passed through the non-slip roller 4, and the tip side is tied to the wound body B. Further, the film web f is pulled out from the film web roll R on the upper side, and similarly, the leading end is tied to the wound body B through the non-slip roller 4. At this time, a part of the upper and lower film webs f, f overlap on the peripheral surface of the non-slip roller 4, and the upper film web roll R
The film web f fed from is overlapped on the outer surface side.

When the wound body B is rotated in this state, the non-slip roller 4 around which the film webs f and f are wound.
Rotates. Further, the film web rolls R and R are rotated by pulling out the film webs f and f. As a result, the flat belts 21 and 21 of the control belt devices y and y, which are pressed against the outer peripheral surfaces of the film web rolls R and R, are also rotated, but their drive pulleys 9 and 9 are non-slip. Since it is mechanically transmitted through the roller 4, the sprocket 10 and 10, the sprocket 6 and 6 and the chains 11 and 11, the drive pulley 9 and 9 rotate by being restricted by the peripheral speed. Since the conduction is set so that the peripheral speed of the non-slip roller 4 is faster than the peripheral speed of the drive pulleys 9 and 9, the rotating flat belts 21 and 21 have a peripheral speed of this non-slip roller. The peripheral speed of the drive pulley 9/9 becomes slower than the peripheral speed of 4.

From this fact, the flat belt 21.2
The amount (length) of the film webs f.f drawn in by the non-slip roller 4 is larger than the amount (length) of the film webs f.f sent out by 1 and the film webs f.f are the film web rolls. It is stretched between the RR and the peripheral surface of the non-slip roller 4.

In this stretching, the roll insertion shafts 22 and 22 are
By being supported on the machine base K side by side in parallel, the film webs f, f drawn from the film web rolls R, R loaded on the machine bases K are mounted on the machine base K as a single non-slip roller 4 Since the parts that come into contact with the peripheral surface of the non-slip roller 4 when being laid over the peripheral surface of the non-slip roller 4 are located at positions distant from each other in the circumferential direction with respect to the peripheral surface of the non-slip roller 4, respectively.・
f Each piece is stretched separately. Then, the film webs f, f stretched separately are overlapped on the peripheral surface of the non-slip roller 4 by the rotation of the non-slip roller 4, and are drawn toward the wound body B in the overlapped state.

Further, the film webs f and f are drawn out and wrapped around the peripheral surface of the body B to be wrapped, so that the film web rolls R and R become gradually smaller in diameter. Since the peripheral speed of the flat belts 21, 21 pressed against the outer peripheral surface is restricted by the peripheral speed of the drive pulleys 9, 9 and does not change, the delivery amount is kept constant. Since the flat belts 21 and 21 are in contact with the peripheral surface of the film web rolls R and R within an angle range of approximately 90 degrees or more as shown in FIG. The film web f is accurately fed at a predetermined peripheral speed without causing slip.

Further, the drive pulleys 9 and 9 are mechanically conducted to the non-slip roller 4, and the lower end face of the paper core of the roll core of the film web rolls R and R does not rotate. Since it comes into contact with the peripheral edge of the upper surface of the support plate 25 which is fixedly supported by the roller and rotates, the large frictional resistance due to the weight of the film web rolls RR itself causes a great frictional resistance to the upper surface of the support plate 25 and the paper. It is prevented from occurring between the lower end surface of the tube and the rotation of the film web rolls RR, which causes overrun or slip.

Therefore, the film webs f and f are uniformly and stably stretched individually at short intervals between the film web rolls R and R and the non-slip rollers 4.

From this, the apparatus of this embodiment has the following advantages. Each of the film webs f and f is not in a tightly adhered state but in a separated state and is separately stretched at an extremely short interval, so that the difference in the characteristics of the film webs and the close contact of the film webs with each other. , There will be no difference between the parts that do not adhere and no stretching unevenness or breakage will occur. Immediately after the film webs f and f have been stably stretched at extremely short intervals, they are strongly pressed against the peripheral surface of the non-slip roller 4 that is rotating in a perfect circle in a wrinkle-free state. The close contact improves the close contact. Further, one wide film web roll R is loaded on one roll insertion shaft 22 and the other roll insertion shaft 2 is loaded.
In the state 2 in which the film web roll R is not loaded, the film web f pulled out from the single wide film web roll R enables efficient packaging of the body B to be fitted. At this time, the control belt device y
With respect to y, the control belt device y on the side facing the other roll insertion shaft 22 only becomes a play, and no trouble occurs.

Next, FIGS. 16 and 17 show another embodiment. In this embodiment, the flat belt 2 is pressed against the peripheral surfaces of the film web rolls R and R loaded on the plurality of roll insertion shafts 22 and 22 provided on the machine base K separately.
In order to simplify the structure of the control belt device y, the flat belts 21 and 21 are driven by the single drive pulley 9 so that the flat belts 21 and 21 are continuously rotated. It is an example.

That is, a machine base K composed of the upper plate 2, the lower plate 3 and the support column 1 is provided with a plurality of roll insertion shafts 22 and 22 and shaft rods 23 each having a side branch at the lower end thereof. It is fitted into the through holes of the support plates 24, 24 provided on the lower surface side of the lower plate 3 of the stand K, and is supported so as to oscillate around the shaft rod 23, and the support plates 25 are respectively attached to them. Direction, the tube 26 is rotatably and slidably inserted through a bearing, and is fixed to a desired position by a push bolt 25a. Roll insertion shaft 22/22
Locking metal fittings 27 that lock each of the
The provision of 27 (not shown) is the same as in the above-mentioned embodiment. Further, a control belt device y for pressing the flat belts 21 and 21 against the outer peripheral surfaces of the film web rolls R and R loaded on the roll insertion shafts 22 and 22, respectively, is mounted on the machine base K. , The arms 13 and 14 that rotate around the shaft 12 provided on the machine base K
And the idler pulley 1 that is pivotally supported on the rotating ends
7 and 17, a drive pulley 9 mounted on the shaft 7 provided on the machine base K, a flat belt 21 wound around these pulleys 17 and 17 and springs 18 and 19 connected to the arms 13 and 14. And there is no change in the installation.

However, the control belt device y.y is used as a machine base so that the flat belts 21.21 are pressed against the outer peripheral surfaces of the film web rolls R.R loaded on the roll insertion shafts 22.22. When mounted on K, as shown in FIGS. 16 and 17, in one (left in the drawing) control belt device y, the arm 14 is omitted and the pivot end of the arm 14 is attached to the shaft. The idler pulley 17 to be supported is shared by the idler pulley 17 pivotally supported on the pivot end of the arm 14 of the other control belt device y (on the right side in the drawing). In addition, the control belt device y on the left side
The drive pulley 9 of is an idler pulley that is freely rotatably fitted on the shaft 7 provided on the machine base K, and the flat belts 21 of the two control belt devices y and y are continuously connected to one another. As shown in FIG. 16, the drive pulley 9 mounted on the shaft 7 of the right control belt device y, the idler pulleys 17 and 17 pivotally supported on the pivot ends of the arms 13 and 14, and the left control belt device y. The idler pulley 17 pivotally supported by the rotating end of the arm 13 and the idler drive pulley 9 are wound around each other, and different parts in the middle of the idler pulley 17 are attached to the outer peripheral surfaces of the two film web rolls RR. I try to contact them. As a result, the drive pulley 9 of the control belt device y on the right side is mechanically transmitted to the non-slip roller 4 and is forcibly rotated, whereby the flat belt 21 contacting the two film web rolls R The mechanism is simplified by rotating the peripheral speed of 21 at a predetermined speed.

Since the rest of the construction is the same as that of the above-mentioned embodiment, the same reference numerals are given to the constituent members of the same effect, and the detailed description will be omitted.

In this embodiment, when the film web roll R having a wide width is used to make one roll, the film web roll R shown in FIGS.
As shown in FIG. 9, the film web roll R is loaded on the right roll insertion shaft 22. At this time, the middle of the flat belt 21 comes into pressure contact with the tube 26 fitted into the left roll insertion shaft 22, but there is no problem because the tube 26 idles as an idler pulley. Further, when the film web roll R having a narrow width is wound into a single roll, it may be loaded on any of the left and right roll insertion shafts 22.

The detachment of the film web roll R in this embodiment is shown in the above-described embodiment by rotating the arms 13 in the direction of the arrow in FIG. 20 as shown in FIG. It is carried out by fixing in that state by the same locking means as the metal fitting 20 and tilting and rotating the roll insertion shafts 22.

Next, FIG. 21 shows a further different embodiment. In this embodiment, the film web rolls R and R are respectively drawn from the film web rolls R and R loaded on a plurality of roll insertion shafts 22 and 22 which are supported in parallel with the machine base K. And the non-slip roller 4 are individually stretched, and then they are closely polymerized on the peripheral surface of the non-slip roller 4 so as to partially overlap each other, and in that state, they are drawn toward the wound body B. In order to do so, by incorporating different non-slip rollers 40, 40 between each film web roll R and the non-slip rollers 4, the non-slip rollers 40, 40 and the non-slip rollers 4 can be arranged to perform the operation. It is an example.

That is, a plurality of roll insertion shafts 22, 22 for loading the film web rolls R are provided in parallel on the machine base K, and the film pulled out from the film web rolls R, R loaded on them. Web f
・ The non-slip roller 4 that rotates f is pivotally supported,
The non-slip roller 4 and the roll insertion shaft 22.2
The non-slip rollers 40 and 40 are axially supported by arranging them between the film web rolls R and R loaded in No. 2 respectively. The rotation shafts of the non-slip rollers 40, 40 are rotated by the rotation shaft of the non-slip roller 4 and the mechanical speed of the non-slip roller 4 by the mechanical transmission means 41, 41.
Each peripheral velocity of 0 is regulated so as to be reduced at the same rate.

As a result, the film webs f, f drawn from the respective film web rolls R, R are spun on the non-slip rollers 40, 40 separately provided, and then guided to the non-slip rollers 4, and passed therethrough. By pulling out toward the winding body B, the respective film webs f and f are separately stretched between the non-slip roller 40 and the non-slip roller 4 and between the non-slip roller 40 and the non-slip roller 4. ,
After the stretching, the peripheral surface of the non-slip roller 4 is adhered and polymerized, and in this state, the non-slip roller 4 is drawn out to the wound body B.

Next, FIG. 22 shows another embodiment. This embodiment is a modification of the embodiment shown in FIG. That is, since the above-described embodiment shown in FIG. 21 has a configuration in which the rotation speed of each film web roll R / R loaded on the roll insertion shaft 22/22 cannot be controlled, the embodiment of FIG. The non-slip rollers 40, 40 are mounted on the machine base K so as to rotate left and right along a virtual arc centered on the rotation axis of the non-slip rollers 40.
40 is provided between the machine base K and the springs 42, 42,
These non-slip rollers 40, 4 are urged so as to rotate in a direction in which they are pressed against the peripheral surfaces of the film web rolls R, R loaded on the roll insertion shafts 22, 22.
No. 0 is an example in which the rotational speed of the film web rolls RR is also controlled.

This embodiment is the same as the above-mentioned embodiment except for the above-mentioned configuration, and therefore, the same components are designated by the same reference numerals and their detailed description will be omitted.

[0060]

As described above, according to the method of wrapping the wound body of the means of the present invention, the two roll insertion shafts 22.
22 and the non-slip roller 4 are formed to be vertically long, and only the roll insertion shaft 22 of the two roll insertion shafts 22 and 22 for displacing and loading the film web roll R downward is wide. The film web roll R is loaded and the film web f drawn from one wide film web roll R is wound around the peripheral surface of the wound body B, and the two roll insertion shafts 22 and 22 are provided. Each of which is loaded with a film web roll R / R, and two film webs f / f drawn from the rolls are wound around the peripheral surface of the body B to be wrapped. Since the peripheral surface of the wound body B is wrapped by winding the film web, two windings are performed by using the two film web rolls RR having a narrow width, and one film web having a wide width. roll Since it is possible to selectively perform the single winding and the winding, the work of winding the film web f on the peripheral surface of the wound body B and wrapping it is required for the wrapping of the wound body B. It becomes possible to select and perform according to the conditions.

Further, the pre-stretching device in the packaging device according to the means of the present invention is the film web roll R loaded on each of the plurality of roll insertion shafts 22 supported on the machine base K.
The film webs f and f drawn from R are separately stretched within a short distance between the film web rolls R and R and the non-slip roller 4, and immediately after stretching, the peripheral surface of one non-slip roller 4 Since the film webs f and f are overlapped and brought into close contact with each other in the above, stable drawing can be obtained without causing uneven drawing and tearing, and the adhesion is improved.

Further, the support plate 2 provided on the roll insertion shaft 22
5, the lower end face of the paper core of the roll core of the loaded film web roll R is brought into sliding contact with the film web roll R, and an appropriate brake is applied by the weight of the film web roll R itself, thereby preventing the occurrence of overrun or slip. become able to. Further, by changing and adjusting the fixing position of the support plate 25 up and down, when a plurality of film web rolls R are used, the degree of overlap between them can be easily adjusted.

The detachment of the film web roll R from the roll inserting shaft 22.
By tilting and turning 2 down, it becomes easier to perform at a low position.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a conventional pre-stretching apparatus for a film web.

FIG. 2 is a schematic side view of the same apparatus.

FIG. 3 is a schematic plan view of another conventional film web pre-stretching device of another embodiment.

FIG. 4 is a schematic plan view of a conventional film web pre-stretching apparatus of still another embodiment.

FIG. 5 is a schematic plan view of another conventional film web pre-stretching device according to another embodiment.

FIG. 6 is an explanatory view of an operation of aligning the centers of the film webs to be wound by the pre-stretching device of FIG.

FIG. 7 is an explanatory view of the work of attaching and detaching the film web roll of the pre-stretching device of FIG.

FIG. 8 is an explanatory view of a work of attaching and detaching a film web roll of the pre-stretching device of FIG.

9 is an explanatory diagram of a stretching process of the film web of the pre-stretching device of FIG.

FIG. 10 is a perspective view of a pre-stretching device according to the present invention.

FIG. 11 is a perspective view of the above preliminary stretching device.

FIG. 12 is a plan view of the above.

FIG. 13 is an explanatory diagram showing a state in which the flat belt of the above is separated.

FIG. 14 is an explanatory view of a range of vertical adjustment of the support plate of the above.

FIG. 15 is an explanatory diagram of a winding direction of a film web roll to be loaded in the same as above.

FIG. 16 is a plan view of another embodiment device.

FIG. 17 is a developed side view of the apparatus according to the above embodiment.

FIG. 18 is an explanatory diagram showing a state in which one film web roll is loaded in the apparatus according to the above embodiment.

FIG. 19 is an expanded view of the apparatus of the above-described embodiment in the same state.

FIG. 20 is an explanatory diagram showing a state in which the flat-belt pressure-bonding is released when the film web roll of the apparatus of the above-mentioned embodiment is detached.

FIG. 21 is a plan view of still another embodiment.

FIG. 22 is a plan view of still another embodiment.

[Explanation of symbols]

A ... Pre-stretching device, B ... Wound body, M ... Machine frame, K ... Machine stand, R ... Film web roll, V ... Zone, W ... Pre-stretching device, a ... Roll insertion shaft, b ... Roll, c ... roll, d ... idler roll, e ... non-slip roller, f
... film web, y ... control belt device, 1 ... column, 1
0 ... Sprocket, 1 ... Chain, 12 ... Shaft, 13 ... Arm, 13a ... Boss portion, 13b ... Locking rod, 14 ... Arm,
14a ... Boss part, 15 ... Shaft, 16 ... Shaft, 17 ... Idler pulley, 18 ... Spring, 19 ... Spring, 2 ...
Upper plate, 2a ... Notch, 20 ... Metal fitting, 21 ... Flat belt, 22 ... Roll insertion shaft, 23 ... Shaft rod, 24 ... Support plate,
25 ... Support plate, 25a ... Push bolt, 26 ... Tube,
27 ... Locking fitting, 27a ... Hook part, 28 ... Spindle, 29
... Spring, 3 ... Lower plate, 3a ... Sub lower plate, 30
... Stopper, 31 ... String, 4 ... Non-slip roller, 4
a ... rotary shaft, 40 ... non-slip roller, 41 ... mechanical transmission means, 42 ... spring, 5 ... bearing, 6. ． Sprocket, 7 ... Short shaft, 8 ... Bearing, 9 ... Drive pulley.

Claims (5)

[Claims] Each of the claims 1] of the two vertical provided by parallel to the left and right in one machine frame K film web roll loading roll insertion axis 22, 22, the film web roll R-R of the stretch material Are vertically eccentrically supported so that the film webs f and f drawn from them partially overlap with each other, and the two film webs f and f drawn from the film web rolls R and R are attached to the machine base K. The film web f , f is drawn out from the film web rolls R, R by guiding the peripheral speed of the non-slip roller 4 through the peripheral surface of a vertically long non-slip roller 4 supported by Please control so that it is faster than the speed of
By pulling out the Himaki Sokarada rotated by the film web roll R · R from the film web f · f of B, in between their peripheral surfaces of the film web f · f a film web roll R · R and non-slip roller 4 Stretched separately,
Immediately after the stretching, the non-slip roller 4 is polymerized and adhered on the peripheral surface of the non-slip roller 4, and the film web f in the polymerized state is adhered.
· F The Himaki Sokarada wrapping method odor Himaki Sokarada by the film web stretched or squeezed material you packaging wrapped around the circumferential surface of the B
The two roll insertion shafts 22 and 22 that are installed in parallel
The up roller 4 is formed vertically to be long, and the two rollers are
Of the insertion shafts 22 and 22, the film web roll R
Only the roll insertion shaft 22 that is biased downward and loaded has a width
Load a wide film web roll R
Roll insertion shaft 22 for loading the roll R by displacing it upward
To the empty state without loading the film web roll R
And pull it out from one wide film web roll R.
A package formed by winding the film web f around the peripheral surface of the body B to be wound.
And two roll insertion shafts 22
Lum Web Roll R · R loaded and withdrawn from them
Wind two film webs f and f around the circumference of the wound body B.
One of the two is the packaging of the wound body B.
The wound body B is selected according to the conditions required for
The wrapping of the peripheral surface of the
Wrapped body using a film web of a characteristic stretchable material
Packaging method. 2. A plurality of vertical roll-insertion shafts 22 ... Are installed side by side on a machine base K, and the roll-insertion shafts 2 ...
2 is provided with a control belt device y that is pressed into contact with the peripheral surface of the film web roll RR and is rotated endlessly.
Separately, one long non-slip roller 4 is installed on the machine base K
The non-slip roller 4 is mechanically supported so that the peripheral speed of the non-slip roller 4 and the rotational shaft of the drive pulley 9 of the control belt device y are higher than the peripheral speed of the drive pulley 9. A pre-stretching device in a packaging device using a film web of a stretchable material, which is characterized by being conducted. 3. A spare in a packaging apparatus using a film web of a stretchable material according to claim 2, wherein the roll insertion shafts 22 ... Are supported on a machine base K so as to oscillate and rotate around a fulcrum shaft on the lower end side thereof. Stretching device. 4. A support plate 25 for supporting the film web rolls R ... by slidingly contacting the lower ends of the roll insertion shafts 22 ... With the lower end surfaces of the film web rolls R inserted into the roll insertion shafts 22. A pre-stretching device in a packaging device using a film web of a stretchable material according to claim 2, which is fixedly provided on a table K. 5. A support plate 25 for supporting the film web R by slidingly contacting the lower end portion of the roll insertion shaft 22 with the lower end surface of the film web roll R fitted into the roll insertion shaft 22.
The pre-stretching device in a packaging device using a film web of a stretchable material according to claim 2, wherein the pre-stretching device is provided so as to be vertically movable with respect to the roll insertion shaft 22.