JPH0723132B2 - Raw fabric packaging equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to an original fabric packaging device, and more particularly to an original fabric packaging device capable of realizing improved reliability and cost reduction by simplifying a mechanism. is there.

[Conventional technology]

Generally, a so-called packaging, which is made by winding paper, cloth, film, etc. in a roll, first wraps the wrapping paper around the wrapping in a roll shape, and then from the end face of the wrapping paper to the end surface of the wrapping tube. This is completed by folding the portion that has jumped out like a line to the end face side (this is usually called "gathering").

As a packaging device for carrying out the body wrapping process in the above-described packaging of the original fabric, for example, one shown in FIGS. 7 and 8 (Japanese Utility Model Publication No. 52-52863 “Automatic winding device for packaging cylindrical articles”). Is disclosed or provided.

The structure and operation of the packaging device 40 will be described below. Reference numerals 41A and 41B are winding rolls that are driven to rotate about an axis, and should be packaged (body winding) on these winding rolls 41A and 41B. By setting the cylindrical article Y, the cylindrical article Y is rotated. Reference numeral 43 is an elevating cylinder, and the tip of the telescopic rod 43a is the winding roll 41A, 4
It is pin-coupled to one end of a link member 44 pivotally attached to the shafts 42A and 42B of 1B. As a result, one of the winding rolls 40B is lowered by the operation of the expandable rod 43a as shown in FIG. 8, and the cylindrical articles Y on the winding rolls 41A and 41B can be fed onto the feeding plate 45. ing.

Above the winding rolls 41A and 41B, rotating rolls 47A and 47B that rotate around fixed shafts 46A and 46B are arranged, and opening and closing arms 48A and 48B are provided at the shaft ends of the fixed shafts 46A and 46B, respectively. Each is provided. Rollers 50A, 50B, 51A, 51B are rotatably provided between the tip ends of the open / close arms 48A, 48B and between the intermediate portions. Similarly, tension arms 52A and 52B are provided at both shaft ends of the rotating rolls 47A and 47B so as to be rotatable about their axes.
The rollers 53A, 53B are provided at one ends of the 52A, 52B, while one ends of springs 54A, 54B are hooked at the other ends. The other ends of the springs 54A and 54B are hooked on fixing portions 49A and 49B which are integral with the opening / closing arms 48A and 48B, respectively.

A series of endless belts 55 are stretched around the rollers 50A, 51A, 53A, the rotating rolls 47A, 47B, and the rollers 53B, 51B, 50B.

In addition, the fixed shaft 46B has a link member integrally formed with the opening / closing arm 48B.
56 is rotatably attached, and one end of the link member 56 is pin-connected to the telescopic rod 57a of the reciprocating cylinder 57. Similarly, the fixed shaft 46B is provided with a large-diameter gear 58 integrally with the opening / closing arm 48B.
A small-diameter gear 59 integrally provided with the opening / closing arm 48A meshes with A.

In the packaging device 40, the cylindrical article Y is rolled up by the following action.

The cylindrical article Y is placed on the winding rolls 41A and 41B and rotated in the direction of arrow c.

The endless belt 55 is made to travel in the direction of arrow d by a driving device (not shown), and the reciprocating cylinder 57 has a telescopic rod 57a.
When retracted, the large-diameter gear 58 and the small-diameter gear 5 mesh with each other.
The open / close arms 48A and 48B are closed by 9. As a result, the endless belt 55 covers the cylindrical article Y so as to surround it. At this time, the springs 54A, 54B and the link members 52A, 5
The tension of the endless belt 55 is kept constant by the action of the tension applying mechanism constituted by 2B and the like. Then, after the endless belt 55 surrounds the cylindrical article Y, when the wrapping paper W cut to an appropriate length is guided by the feeding mechanism 60 between the cylindrical article Y and the winding roll 41B, the wrapping is performed. After passing between the cylindrical article Y and the winding rolls 41A and 41B, the paper W is guided between the cylindrical article Y and the endless belt 55, and is rotated once while maintaining the splicing state with the cylindrical article Y. The wrapping of the wrapping paper W around the shaped article Y is completed.

[Problems to be Solved by the Invention]

By the way, according to the wrapping device 40, the wrapping paper W is certainly smoothly wrapped around the cylindrical article Y, but it has the following problems to be solved.

That is, in the packaging device 40, the endless belt 55 is stretched between a large number of rollers or rotating rolls to run, and the positional relationship between the rollers or rotating rolls is suppressed while suppressing the tension change of the endless belt 55 by the tension applying mechanism. First, in order to realize such a function, the rotating rolls 47A, 47B, the rollers 50A, 50B, 51A, 51B, 53A, 53B, the tension arm 52
Since it has an extremely complicated mechanism composed of many members such as A, 52B, springs 54A, 54B, etc., the manufacturing cost increases.

Secondly, the endless belt 55 that is stretched and run between a large number of rollers can be said to be provided with a tension applying mechanism,
The change in the positional relationship between the supporting points (rollers, rotating rollers, etc.) that is repeated for each process helps change the tension at all times, and because it slides with many rollers under tension. Therefore, the service life of members is short, and periodic inspection, adjustment, or replacement is required.

Thirdly, in this way, since the shape of the running endless belt 55 is changed while suppressing the change in tension, it is naturally impossible to expect a sudden movement, and therefore, the processing speed per one cylindrical article Y. Is slow.

The present invention has been made in view of the above circumstances, and of course, it is possible to carry out a smooth and reliable body winding, of course, the mechanism can be simplified, and similarly, the processing speed can be increased corresponding to the fast operation. It is an object of the present invention to provide a raw fabric packaging device that can eliminate maintenance related to breakdowns as much as possible and can realize cost reduction as a whole.

[Means for Solving the Problems]

The original fabric wrapping device according to the present invention is a device for preliminarily winding a wrapping paper around the original fabric in a roll shape when packaging the original fabric, and a supporting roller for supporting the original fabric rotatably around an axis. A drive source for applying a rotational force to the supporting roller to rotate the original sheet mounted on the supporting roller; and a driving source provided in pairs above the supporting roller and mounted on the supporting roller. An opening / closing member configured to be openable and closable so as to surround the original fabric from both sides in the radial direction, and at least one surface formed into a flexible belt shape having a low friction surface, and the base end has a tension adjusting function. While connected to the winding device,
The original fabric holding member having the other end fixed to the free end of the other opening / closing member through the free end of one opening / closing member of the opening / closing members.

[Action]

When the original fabric is placed on the support roller and the drive source is operated, the original fabric is rotated around its own axis. When the opening / closing member is closed from above with respect to the original fabric, a belt-shaped original fabric holding member, one end of which is fixed to the free end of the other opening / closing member through the free end, surrounds the original fabric. It is attached to the original fabric as it is.

The original fabric holding member is housed in a winding device having a tension adjusting function and is not driven by itself. Moreover, since this original fabric holding member slides only with the free end of one opening / closing member, the opening / closing operation of the opening / closing member can be performed smoothly and smoothly, and at the same time, the original fabric holding member. Does not hurt. In addition, the surface of the original fabric holding member is a low friction surface with extremely small friction, and the wrapping paper supplied between the support roller and the original fabric is
The original fabric holding member is guided in a slip state and wound around the original fabric.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are a side view and a front view, respectively, showing an original fabric packaging device according to the present invention.

In FIGS. 1 and 2, reference numeral 2 is a frame constituting the device 1. Reference numerals 3A and 3B (Fig. 1) are original Z
A support roller that supports (a large diameter and a small diameter is shown) so that it can rotate about its axis. In this case, two rollers of the same diameter are provided in parallel at a distance, and both rotate about the axis. It is free. A pulley 4 is provided at one end of one support roller 3A. The rollers 3A, 3 of the frame 2
Below B, a motor (driving source) 5 is provided on one end side where the pulley 4 is provided, and between the pulley 6 provided on the output shaft 5a of the motor 5 and the pulley 4. The belt 7 is stretched. That is, the support roller 3A is rotated around the axis by driving the motor 5. Further, an endless belt 8 is stretched between these two support rollers 3A and 3B.

In this case, the supporting roller 3B is one supporting roller.
Support shafts 14, 14 provided on the coaxial extension of the rotary shaft 3a of 3A
It is provided on a roller support frame 9 which is configured to be swingable (see FIG. 2), and a feed plate 11 which also has a paper feeding function is integrally attached to the roller support frame 9. Further, on the back side of the feed plate 11, the tips of the telescopic rods 12a, 12a of the air cylinders 12, 12 are pin-coupled, respectively, so that the support roller 3B and the feed plate 11 move vertically about the support shaft 14. It is possible to move. Also, as shown in FIG. 1, the two air cylinders 12
The cylinder body 12b is rotatably supported by a pin 13 so that the posture of the cylinder body 12b can be changed in accordance with the extension / contraction operation of the extension / contraction rod 12a.

Further, above the support rollers 3A, 3B, opening / closing members 15A, 15B having a V shape and forming a pair are provided so that their free ends 15a, 15b side face inward.
The opening / closing members 15A and 15B are the support rollers 3 as shown in FIG.
Multiple locations along the longitudinal direction of A and 3B (3 locations in the example shown)
It is located in. Opening / closing members 15A and 15B that make up these pairs
Both of the base ends 15a 'and 15b' are coaxially swingably attached to a bracket 18 attached to the frame 2 on a shaft 19 provided in parallel with the support rollers 3A and 3B.

As described above, an air cylinder 20 is erected on the upper part of the bracket 18 located at the center among the brackets 18 arranged at three positions, with the telescopic rod 20a thereof facing upward. The tip end portion of the telescopic rod 20a is connected to the central portion of the head bar 21 that extends in the axial direction of the support rollers 3A and 3B. Link members 22A and 22 are provided on both ends of the head bar 21, respectively.
One end of B is swingable. The other ends of the link members 22A and 22B are respectively provided with underbars 2 which are laterally bridged between the support rods 23A and 23B projecting outward from the opening / closing members 15A and 15B.
It is axially supported by 4A and 24B. Reference numeral 25 in FIG. 2 is a guide rod for guiding the vertical movement of the head bar 21,
26 is the guide bush.

Further above the head bar 21, a winding device 27 is attached to the frame 2 corresponding to the installation positions of the opening / closing members 15A and 15B at the three locations. The proximal end side of the original fabric holding member 30 is connected to the distal ends of the strings 28 wound around the winding device 27, respectively. In this case, the original fabric holding member 30 is composed of a roller chain as illustrated. The roller chain is formed of a series of strings by connecting a large number of rollers 31, 31, ..., And is highly flexible and has an extremely small friction coefficient. The leading end of the original fabric holding member 30 is fixed to the free end 15a of the other opening / closing member 15A via the free end 15b of the one opening / closing member 15B. The free end 15b of the opening / closing member 15B and the bent portion forming the V-shape
15b ″ is provided with support rollers 16 and 17 for slidably holding the original fabric holding member 30. The tension adjusting function provided in the winding device 27 means
The cord 28, that is, the original fabric holding member 30, is pulled so that the tension is always constant.

In addition, reference numeral 10 in FIG. 1 denotes an original fabric Z to be wrapped (body wrapped).
Is a delivery plate for receiving from the pre-process device and delivering to the support rollers 3A and 3B.

A plurality of air nozzles 33, 33, ... Are provided in the delivery plate 10 in the vicinity of the support roller 3A, and their air outlets 33a are provided.
Is disposed slightly toward the support roller 3A side from above in the vertical direction. Reference numeral 34 in the figure is a sensor provided on the feed plate 11 for detecting the presence or absence of broadcast paper on the feed plate 11.

Next, the operation and effect of the packaging device 1 configured as described above will be described.

In the receiving state of the original Z, as shown in FIG. 3, the supporting roller 3B is in the normal state, that is, the two supporting rollers 3A, 3
Set B so that it is almost horizontal, and open / close part 15
Leave A and 15B open and move them upward.

In order to bring the support rollers 3A and 3B to the horizontal position, the air cylinder 12 is operated to extend the telescopic rod 12a. As described above, since the support roller 3B is provided on the roller support frame 9 with the support shaft 14 (Fig. 2) as the swing center, the support roller 3B moves upward due to the extension of the telescopic rod 12a. And is set in a position horizontally aligned with the support roller 3A. On the other hand, to open / close the opening / closing members 15A and 15B, the air cylinder 20 is operated to extend the telescopic rod 20a upward. When the head bar 21 moves upward, the under bar 24 is moved through the link members 22A and 22B.
A and 24B move upward respectively, and the opening / closing members 15A and 15B move to the shaft 19
Is opened mainly. In this state, one end of the original fabric holding member 30 is pulled by the winding device 27 with a constant tension.
It will be installed in a straight line between the free ends 15a, 15b of A, 15B.

In the above-mentioned state, the original fabric Z to be packaged is supplied from the delivery plate 10 and the two support rollers 3A and 3B arranged side by side horizontally.
Placed on top. Actually, since the belt 8 is stretched between the support rollers 3A and 3B, the original fabric Z is the belt 8
Will be placed on both rollers 3A, 3B via.
The original fabric Z is supplied from an apparatus (not shown) in the previous step.

Next, when the motor 5 is started, the pulley 6, belt 7,
The support roller 3A rotates via the pulley 4. The rotation direction is the direction of arrow a in the figure. As a result, the original fabric Z is rotated in the direction of arrow b, and the other supporting roller 3B is also rotated. At the same time, the belt 8 also runs endlessly between the rollers 3A and 3B.

Next, as shown in FIG. 4, the retractable rod 20a of the air cylinder 20 is retracted to open / close the opening / closing members 15A and 15B.
Close your legs. As a result, the original fabric holding member 30 surrounds the upper half of the original fabric Z. The state in which the open / close members 15A and 15B change from the open state to the closed state until the original fabric holding member 30 surrounds the original fabric Z will be described.
Since one end of the opening / closing member 15A is always stretched with a constant tension by the winding device 27, one opening / closing member 15B is opened in the process of opening / closing members 15A and 15B from the open leg state to the closed leg state as described above. The free end 15b moves while sliding with respect to the original fabric holding member 30, and the original fabric holding member 30 remains stretched linearly between the free ends 15a and 15b. Then, the original fabric holding member 30 contacts the original fabric Z, and the free end 15 continues after that.
By moving a and 15b downward, the original fabric holding member 30 which is linear is attached along the original fabric Z, and the free end
This time, 15b moves while sliding in the opposite direction to the above with respect to the original fabric holding member 30. Further, at this time, when the original fabric Z has a small diameter as shown in FIG. 5, the original fabric holding member 30 is rewound by the winding device 27,
When the original fabric Z has a large diameter, it is pulled out from the winding device 27.

After the above state, the air nozzle 33 is utilized, and then the wrapping paper W cut into a predetermined size is fed from the feed plate 11 side between the original fabric Z and the support roller 3B (belt 8). The dimension of the wrapping paper W is such that, in the winding direction of the original fabric Z, the length at which the original fabric Z makes at least one round to form a superposed portion, and the axial direction of the original fabric Z is approximately the axis of the original fabric Z. The length is the dimension in the direction plus the dimension in the diameter.

When the wrapping paper W is fed between the original fabric Z and the support roller 3B, the wrapping paper W is delivered to the other support roller 3A side by the rotation of the original fabric Z and the belt 8. And this support roller 3A
The leading end portion of the wrapping paper W sent out from the side enters the inside of the original fabric holding member 30 attached so as to surround the original fabric Z.
Since the original fabric Z is rotating, and the original fabric holding member 30 has rollers 31, 31, ... And has extremely small friction,
The wrapping paper W is wound around the material Z while being guided by the material holding member 30.

Here, when the outer diameter of the original Z is large, as shown in FIG. 4, the distance between the tip (free end 15a) of the opening / closing member 15A and the contact point of the original Z with the support roller 3A is relatively large. Since they are largely separated from each other, there is a concern that the delivered wrapping paper W cannot obey the inside of the original fabric holding member 30 along the outer periphery of the original fabric Z. Therefore, if air is ejected from the air nozzle 33 as described above, the leading end of the wrapping paper W sent out from the support roller 3A is abutted on the outer peripheral surface of the original fabric Z, so that the inside of the original fabric holding member 30. You can smoothly enter.

The adhesive is applied in advance on the rear end of the upper surface of the wrapping paper W,
As described above, when the wrapping paper W makes one round, the wrapping paper W wound around the original fabric Z is fixed, whereby the body winding is completed.

After that, as shown in FIG. 6, the motor 5 is stopped to stop the rotation of the original fabric Z, and at the same time, the telescopic rod 20a of the air cylinder 20 is made to grow to retract the opening / closing members 15A and 15B upward, that is, to open the legs. Let Then, when the telescopic rod 12a of the air cylinder 12 is retracted thereafter, the support roller 3B moves so as to incline downward, and the feed plate 11 also inclines downward accordingly. Therefore, the roll Z of the wrapped wrapping paper W, which has been completely wound, rolls on the feed plate 11 apart from the support rollers 3A and 3B and is fed to the next process device such as a gathering device.

According to the original fabric packaging device 1, the wrapping paper W for the original fabric Z is provided.
It is needless to say that the body winding can be reliably performed regardless of the size of the original fabric outer diameter, but since the original fabric holding member 30 is fixed, the mechanism can be greatly simplified.

Moreover, the original fabric holding member 30 not only has a very simple extension path, but also does not run by itself, and only one opening / closing member 15B is free when the opening / closing members 15A and 15B are opened / closed. Since it slides only at two points, the end 15b and the bent portion 15b ″, the operation resistance is extremely small. Therefore, it is possible to cope with the quick operation of the opening / closing members 15A and 15B, and the processing speed can be increased. In addition to improving the durability, the durability of the original fabric holding member 30 itself is greatly improved, and the trouble of maintenance and the like can be eliminated as much as possible.

Further, as described above, the simplification of the function of the original fabric holding member 30 and the simplification of the mechanism related thereto can reduce the overall cost, and can greatly improve the reliability of the entire apparatus.

Although the original fabric holding member 30 is a roller belt composed of a large number of rollers 31 in the above embodiment, the wrapping paper W is wound so as to be naturally attracted to the rotating raw fabric Z due to the influence of static electricity or the like. Therefore, as the original fabric holding member 30, it has been confirmed by experiments that, for example, a commercially available tape-shaped friction reducing material made of synthetic resin is sufficient.

Further, it goes without saying that the opening / closing mechanism for operating the opening / closing members 15A, 15B, or the air cylinders 12, 20 are not limited to those of the above-mentioned embodiment, and may be operated by other link mechanism, cam mechanism, gear mechanism, or the like. The air cylinders 12 and 20 may have other actuators, screw mechanisms, or the like.

Further, the series of operations of each drive element described in the operation of the above-described embodiment is, of course, automatically performed by the sequence circuit or the like.

[Advantages of the Invention] As described above, according to the original fabric wrapping apparatus of the present invention, it is possible to surely perform the body winding of the wrapping paper on the original fabric regardless of the outer diameter of the original fabric, and of course, the original fabric holding Since the part is fixed, the mechanism can be greatly simplified.
Moreover, since the original fabric holding member has a very simple extension path and extremely low movement resistance, it is possible to respond to quick movements of the opening / closing member, speed up the processing speed, and hold the original fabric. The durability of the members themselves is also greatly improved, and in combination with the simplification of the mechanism, the reliability of the entire device against failures and the like is improved, and the overall cost is reduced, which is an excellent effect. .

[Brief description of drawings]

FIG. 1 is an overall side view showing an original fabric packaging device according to an embodiment of the present invention, FIG. 2 is a front view thereof, and FIGS. 3 to 6 show the operation of the original fabric packaging device according to the present embodiment. Schematic side views, FIG. 7 and FIG. 8 are side views showing a conventional device. Z: Original fabric, W: Wrapping paper, 1 ... Original fabric packaging device, 3A, 3B ... Support roller, 5 ... Motor (driving source), 15A, 15B ... Opening / closing member, 15a, 15b ... Free end, 27 ... Winding device, 30 ... Original fabric holding member.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-59-74014 (JP, A) JP 52-27167 (JP, Y2) JP 54-28215 (JP, Y2)

Claims (1)

[Claims] 1. A raw material wrapping device for preliminarily winding a wrapping paper around a raw material in a roll shape when the raw material is wrapped, the support roller supporting the raw material rotatably around an axis. A drive source that applies a rotational force to the support roller to rotate the original fabric mounted on the support roller, and a drive source that is provided as a pair above the support roller and is mounted on the support roller. An opening / closing member configured to open and close so as to surround the opposite side from its radial direction, and a take-up member having at least one surface formed in a flexible band shape having a low friction surface and a base end having a tension adjusting function. An original holding member which is connected to the apparatus and has the other end fixed to the free end of the other opening / closing member through the free end of one opening / closing member of the opening / closing member. Anti-wrapping device.