JP2000025713A - Packaging device for ring-shape article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging device for a ring-shape article which can efficiently realize a new packaging configuration for the ring-shape article. SOLUTION: A long band-shape packaging material which is formed of a stretch film having a self-adhesiveness is wound on a ring-shape article M while gradually shifting the location in a manner to avoid a central hole, and thus, the ring-shape article M is packaged by this packaging device 1 for ring- shape articles, and the packaging device 1 is constituted of a supporting means 20 equipped with a mounting table on which the ring-shape article M is rotatably mounted at a location other than a winding location α in such a manner that one part of the ring-shape article M may be located at the winding location α of the packaging material, a rotating means 30 which grips the outer peripheral surface of the ring-shape article M from the outside, and rotates the ring-shape article M at a location other than the winding location α, and a winding means 40 which continuously winds the packaging material around the ring-shape article M which rotates in such a manner that one part may pass the winding location α, at the winding location α.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a wire material such as an electric wire,
A long strip-shaped packaging material formed of a synthetic resin film having good stretchability and self-adhesion is gradually placed on an annular article in which a hose, a steel plate, etc. are wound in an annular shape so as to avoid the center hole. The present invention relates to a packaging apparatus for an annular article that packs an annular article by winding it while shifting it.

[0002]

2. Description of the Related Art When packaging an annular article as described above, the annular article has heretofore been covered with a tubular packaging material made of a heat-shrinkable film, and this packaging material is shrunk by heating. By doing so, a packaging form in which a packaging material is closely adhered to the outer peripheral surface of the annular article so as not to block the center hole and packaged, has been generally adopted.

However, when such a packaging form is adopted, the heat-shrinkable film itself as a packaging material is expensive, and a heating device such as a heater is required to thermally shrink the packaging material. In addition, there is a problem that the equipment cost and the running cost are high, and finally the product cost is high.

[0004] For this reason, recently, FIG.
As shown in (b), a new long band-shaped packaging material P formed of a stretch film having self-adhesiveness is wound around the annular article M while gradually shifting the position so as to avoid the center hole h. Packaging forms have been devised.

An object of the present invention is to provide a packaging apparatus for an annular article which can efficiently realize a new packaging form for the above-described annular article.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a long band-shaped packaging material formed of a synthetic resin film having good stretchability and self-adhesiveness. An annular article packaging apparatus for packaging an annular article by winding it around an annular article while gradually shifting the position so as to avoid holes, such that a part of the annular article is located at the winding position of the packaging material. In a position other than the winding position, a support means for supporting the annular article so as to be able to rotate around its center hole as a center of rotation, and an annular article supported by the support means, with the center hole as a center of rotation. An annular article comprising: a rotating means for rotating; and a winding means for continuously winding the packaging material at the winding position on the annular article partly rotating so as to pass through the winding position. It is to provide a packaging apparatus.

In the packaging apparatus for an annular article configured as described above, the annular article, which is rotatably supported by the supporting means so that a part thereof is located at the winding position, is rotated by the rotating means. By wrapping the packaging material at the winding position by the winding means, the annular article can be efficiently packed in the above-described packaging form.

Further, if the winding means is provided with a fixing mechanism which presses and fixes the starting end of the packaging material to the annular article at the initial stage of winding the packaging material, the adhesiveness of the packaging material to the annular article is improved. Even when the packaging material is inferior, the starting end of the packaging material is securely fixed to the annular article. Can be wound.

[0009] The support means may include a plurality of roller members on which the annular article is mounted at a position other than the winding position, and which can rotate at a fixed position substantially in the circumferential direction of the annular article at the mounting portion. If it is constituted by a mounting table, the annular article can be supported in a stable state so as to be able to rotate.

[0010] Further, a clamp mechanism provided with a plurality of rollers for gripping the outer peripheral surface of the annular article from outside at a position other than the winding position with the rotation means, and at least one of the rollers among the plurality of rollers And a driving mechanism for rotating the ring member, the ring-shaped article can be rotated in a stable state.

[0011] The rotating means may include a clamp mechanism for gripping an inner peripheral surface of the annular article from inside the center hole,
If the clamping mechanism is constituted by a driving mechanism for rotating, since the rotating means is arranged inside the annular article,
The space occupied by the rotation means can be saved.

A transport conveyor for the annular article is provided so as to pass through the winding position, and when the packaging material is wound around the annular article by the winding means, In the case of having a retractable conveyor that retracts from the position and secures a work space for winding the packaging material by the winding means, the annular article is stopped at the winding position on the transport conveyor. Since the winding operation of the packaging material can be performed, the efficiency of the winding operation of the packaging material can be improved, and the transport region of the annular article and the packaging material winding operation region can be shared. In addition, the size of the device itself can be reduced.

A wrapping roll wound with a wrapping material, wherein the wrapping means winds the wrapping material around the annular article while vertically rotating around the annular article at the wrapping position; The wrapping material is unwound from the web roll wound with the long band-shaped wrapping material, and the wrapping material having a length necessary for packaging at least one of the annular articles is previously wound around the winding roll. Since the weight of the winding roll on which the packaging material is wound does not become unnecessarily large in a device having a packaging material supply mechanism for rotating, Since it is possible to reduce the size and use a raw roll wound with a wrapping material of a considerable length, there is no need to frequently change the raw roll, and many Continuous and efficient packaging of circular articles It can be.

[0014]

Embodiments will be described below with reference to the drawings. 1 to 6 show a first embodiment. This packaging device 1 comprises a low-density polyethylene,
A long strip-shaped packaging material P formed by a stretch film having good stretchability (elastic stretchability) and self-adhesiveness, which is formed of a synthetic resin such as an ethylene-vinyl acetate copolymer, polybutadiene, or polyvinyl chloride. , Which is wound around an annular article M formed by winding a wire such as an electric wire and wrapped, and transports the annular article M from a supply port β to an outlet γ so as to pass through a winding position α of the packaging material P. 10
And a support means 20 for rotatably supporting the annular article M conveyed to the winding position α by the conveyor 10;
A rotating means 30 for rotating the annular article M supported by the support means 20 and a winding means 40 for winding the packaging material P around the annular article M rotated by the rotating means 30
It is composed of

As shown in FIGS. 1 and 2, the transport conveyor 10 includes a first roller conveyor 11 for transporting an annular article M from a supply port β to a winding position α, and an annular article M at a winding position α. And a second roller conveyor 12 that transports the rollers 13 and 12 to a carry-out port γ. These roller conveyors 11 and 12 are provided with motors 13 and 14 disposed thereunder.
, Respectively. Also,
Sensors 15, 16, 17 for detecting the position of the annular article M are attached to these roller conveyors 11, 12, and based on detection signals from these sensors 15, 16, 17, the respective roller conveyors 11, 12, 12 is controlled.

As shown in FIGS. 1 to 4, the support means 20 includes a mounting table 21 on which the annular article M conveyed by the roller conveyor 11 is mounted, an elevating mechanism 23 for raising and lowering the mounting table 21. The supporting means 20 is disposed between the first roller conveyor 11 and the second roller conveyor 12 which are located just before the winding position α.

As shown in FIGS. 3 and 4, the mounting table 21 has a roller group 22a composed of a plurality of rollers extending in a direction perpendicular to the conveying direction of the annular article M by the roller conveyors 11, 12. 22b are attached in the front-rear direction of the packaging device 1 (in the direction orthogonal to the conveying direction of the annular article M) with the center hole h of the annular article M interposed therebetween, and a plurality of rollers 22a and 22b constituting the roller groups 22a and 22b. By rotating the rollers in opposite directions, both roller groups 22a,
The annular article M placed on the base 22b can rotate.

As shown in FIGS. 2 and 3, the lifting mechanism 23 raises and lowers the mounting table 21 by means of a driving cylinder, thereby moving the annular article M mounted on the mounting table 21 to the roller conveyors 11 and 12. And the level of the winding operation of the packaging material P by the winding means 40. Therefore, as shown in FIG. 1, the annular article M conveyed by the roller conveyor 11 is
First, the roller groups 22a and 22b are delivered to the mounting table 21 located at the transport level, and the mounting table 21 is lifted by the elevating mechanism 23, whereby the packaging material P is lifted to the winding operation level.

The rotation means 30, as shown in FIG.
The outer peripheral surface of the annular article M is sandwiched between the winding position α and the annular article M.
A pair of clamp members 3 to be gripped from the front and rear in the transport direction
There is provided a clamping mechanism 31 composed of a pair 2 and 33, and this clamping mechanism 31 is attached to the above-mentioned winding operation level of the packaging material P.

The clamp member 32 is disposed on the downstream side in the conveying direction of the annular article M, and is provided with a drive cylinder 32c.
Substrate 3 driven forward and backward in the transport direction of annular article M by
2a, and a pair of two vertically extending rollers 32b supported by the base 32a so as to abut on the outer peripheral surface of the annular article M at a predetermined interval.

The clamp member 33 is disposed on the upstream side in the transport direction of the annular article M, and includes a pair of two support shafts 33a extending in a direction orthogonal to the transport direction of the annular article M;
It includes a pair of bases 33b slidably supported by the support shaft 33a, and rollers 33c that are supported by the bases 33b and extend in the vertical direction.

The pair of bases 33b are connected to one base 33
The drive cylinder 33e having a piston rod connected to the b and a link mechanism 33d for connecting the two bases 33b to each other can be moved toward and away from each other along the support shaft 33a. At this time, the rollers 33c respectively supported on the base 33b
Abut on the outer peripheral surface at a constant interval.

The rotation means 30 further includes a drive mechanism 34 for rotating the two rollers 33c of the clamp member 33. The drive mechanism 34 is provided at one end of the support shaft 33a. Motor 34 as a driving source
a, a pulley 34b attached to the support shaft of each roller 33c, a pulley 34c attached to the rotating shaft of the motor 34a, a pulley 34d attached to the other end of the support shaft 33a, and a pulley 34b. 34c, 34
and a tension roller 34f for applying a constant tension to the belt 34e. Therefore, each roller 33c rotates in a fixed direction by driving the motor 34a.

The rotation means 30 configured as described above
The state in which the clamp members 32, 33 grip the annular article M, that is, the rollers 32b of the clamp members 32, 33,
By driving the roller 33c to rotate in a certain direction by the drive mechanism 34 in a state where the roller 33c is in contact with the outer peripheral surface of the ring-shaped article M, the ring-shaped article M contacted by the roller 33c is rotated in a certain direction. be able to. At this time, as described above, each of the roller groups 22a and 22b of the mounting table 21 on which the annular article M is mounted rotates in the opposite directions to each other, so that the annular article M is placed on the mounting table 21. It can rotate smoothly.

As shown in FIGS. 1 to 4, the wrapping means 40 attaches the wrapping position α to the annular article M which is partially rotated at the wrapping operation level so as to pass through the wrapping position α. , A winding mechanism 41 for continuously winding the packaging material P, a fixing mechanism 44 for pressing and fixing the starting end of the packaging material P to the annular article M at the initial stage of winding the packaging material P, and a winding mechanism 41 for winding the packaging material P. After the attachment is completed, a cutting mechanism 47 for cutting the packaging material P is provided.

As shown in FIGS. 2 to 4, the winding mechanism 41 has a rotating arm 42 that rotates in the vertical direction, and a long strip-shaped packaging material P wound around the tip of the rotating arm 42. Support portion 42a for rotatably supporting the material roll R
And a guide roller 42b of the packaging material P attached to a frame extending in a direction orthogonal to the tip of the rotary arm 42.
And a motor 43 as a drive source of the rotary arm 42. The rotational driving force of the motor 43 is
And the pulleys 43a and 42c attached to the rotating shaft of the rotating arm 42 and the belt 43b stretched between the pulleys 43a and 42c, respectively.

The fixing mechanism 44 is, as shown in FIG.
At a position immediately above the annular article M lifted to the winding level of the packaging material P, a pair of pressing members 45 supported to be able to advance and retreat with respect to the winding position α, respectively, and the pair of pressing members 45 are respectively driven forward and backward. And a pressing cylinder 46 for driving the pressing member 4.
5a is attached. The pressing member 45 presses the packaging material P against the upper surface of the annular article M by advancing at the initial stage of winding the packaging material P, as shown in FIG.
As shown in FIG. 5, it is retracted to open the winding position α.

As shown in FIGS. 2 and 3, the cutting mechanism 47 includes a clamp member 48 for holding the packaging material P unwound from the material roll R at a predetermined position,
The cutting blade 49 is configured to cut the packaging material P gripped by 8 in the vicinity of the clamp position, and the cutting blade 49 is configured to advance and retreat with respect to the cutting position.

In the packaging device 1 configured as described above,
First, the annular article M conveyed to the winding position α by the first roller conveyor 11 is lifted to a winding operation level of the packaging material P while being placed on the mounting table 21.
At this time, the leading end of the packaging material P is gripped by the clamp member 48 as shown in FIG.
The rotation of the rotation arm 42 of the circular object M
Of the packaging material P is started.

In the initial stage of winding the packaging material P around the annular article M, as shown in FIG.
5 is advanced to the winding position α, and the starting end of the wound packaging material P is fixed by pressing on the upper surface of the annular article M, and then the gripping of the packaging material P by the clamp member 48 is released,
While the rotating means 30 rotates the annular article M at a predetermined speed, the wrapping material P is wound by the winding means 40. When the rotating arm 42 makes one rotation, the pressing member 45 is rotated.
Is retracted from the winding position α, the fixing of the packaging material P is released, and thereafter, as shown in FIGS. 5 and 6A, the packaging material P is continuously attached to the rotating annular article M. It is wound around.

When the winding of the packaging material P is completed, the rotating arm 42 stops at the winding start position of the packaging material P, as shown in FIG. 6B, and as shown in FIG. The mounting table 21 on which the articles M are mounted is lowered to the level of conveyance by the conveyor 10. Then, the clamping member 48 grips the packaging material P connected to the raw material roll R, and the packaging material P is cut from the raw material roll R by the cutting blade 49.
As shown in FIG. 8B, the annular article M packed by the packaging material P is carried out by the roller conveyor 12.

FIGS. 7 to 10 show the fixing mechanism 4 described above.
4 shows a modification of FIG. This fixing mechanism 50 is configured as shown in FIG.
As shown in the figure, at the winding position α of the packaging material P, they are common to the above-described fixing mechanism 44 in that they are disposed on the upstream side and the downstream side in the rotational direction of the annular article M, respectively. The first fixing mechanism 51 provided and the second fixing mechanism 51 provided downstream are provided.
The fixing mechanism 61 differs from the fixing mechanism 44 in that the fixing mechanism 61 has a different structure and function.

As shown in FIGS. 7 and 8, the first fixing mechanism 51 includes a first horizontal shaft 53 rotatably supported by a bearing member 52 fixed to a frame (not shown).
A swing arm 54 swingably supported by the horizontal shaft 53; a second horizontal shaft 56 rotatably supported at the lower end of the swing arm 54 via a bearing 55; The horizontal shaft 53 includes a pressing member 57 rotatably supported by a shaft 56 and a driving cylinder 58 of the swing arm 54 attached to the bearing member 53. The horizontal shaft 53 is a driving source of the rotating arm 42. , Which is driven by a motor 43, and whose rotational driving force is controlled by pulleys 53 a, 5 a attached to the first and second horizontal shafts 53, 56, respectively.
The power is transmitted to the second horizontal shaft 56 by a timing belt 59 stretched over the pulley 6a and the pulleys 53a and 56a.

The pressing member 57 has a pair of bases 57a swingably supported by a second horizontal shaft 56, and a large diameter fixed to the horizontal shaft 56 so as to be sandwiched between the pair of bases 57a. Pulley 57b, and small-diameter pulleys 57c, 57d, 57e rotatably supported by a pair of substrates 57a.
And an adhesive belt 57f having an adhesive outer surface, which is stretched over these pulleys 57b, 57c, 57d, and 57e.
The base 57b is provided with a holding portion 57g that protrudes downward from the lower belt surface at a front end portion of the base 57b that protrudes forward so that the adhesive belt 57f does not contact the annular article M. At the front end, the upper belt surface is located slightly above the base 57a. The holding member 57 is connected at its rear end to the swing arm 54 by a coil spring 60 in an extended state. The holding member 57 is always pressed by the coil spring 60 so as to press the upper surface of the annular article M. It is biased downward.

The first fixing mechanism 51 configured as described above
Is normally retracted rearward from the winding position α as shown by the solid line in FIGS. 9 and 11, but at the beginning of the winding of the packaging material P (at the time of the first winding), the drive cylinder 58 Is operated, the swing arm 54 swings forward, as shown by a two-dot chain line in the same figure, and the distal end portion of the pressing member 57 presses and fixes the packaging material P against the upper surface of the annular article M. Therefore, the starting end of the packaging material P does not shift, and the packaging material P
Can be reliably wound around the annular article M. Since the starting end of the packaging material P is pressed by the pressing portion 57g provided at the tip of the base body 57a, the adhesive belt 57f does not contact the packaging material P.

The holding member 57 is always stopped at the winding position α while the packaging material P is wound several times. However, at the time of the second and subsequent windings, the holding member 57 rotates by itself, so that the holding member 57 rotates. Since the starting end portion of the packaging material P pressed by 57 moves forward (in the direction indicated by the arrow in FIG. 9), the fixing of the packaging material P by the pressing member 57 is released. However, since the next packaging material P is wound on the leading end portion of the pressing member 57 stopped at the winding position α, the packaging material P comes into contact with the adhesive belt 57f, so that the adhesive material is held on the adhesive belt 57f. Thus, the displacement of the packaging material P is prevented.

In the third and subsequent windings of the packaging material P, the annular article M rotates, and the adhesive belt 57 is rotated.
Although the packaging material P held on f tends to gradually move forward, the movement of the packaging material P is restricted because the packaging material P is adhesively held by the adhesive belt 57f. At this time, the rotation of the first and second horizontal shafts 53 and 56 causes the upper adhesive belt 57f to move forward, whereby the packaging material P adhesively held by the adhesive belt 57f becomes an annular article. Since it is pushed forward in accordance with the rotation speed of M, the wound packaging material P can be moved smoothly. When the packaging material P is wound several times, the packaging material P
Is also stabilized, so that the swing arm 54 swings backward by the drive cylinder 58, and the pressing member 57 is retracted from the winding position α as shown by the solid line in FIG.

As shown in FIG. 10, the second fixing mechanism 61 includes a bracket 62 fixed to a frame (not shown).
A swinging arm 63 swingably supported by the bracket 62, a holding member 64 rotatably supported by a lower end of the swinging arm 63 and having a holding roller 64 a at a tip end thereof; 62, a drive cylinder 65 of a swing arm 63 attached to
The pressing member 64 is always lowered by a coil spring 66 in an extended state connecting the rear end and the swing arm 63 so that the pressing roller 64a at the front end presses the upper surface of the annular article M. Is biased to the side.

The second fixing mechanism 61 configured as described above
Is normally retracted backward from the winding position α as shown by the solid line in FIGS. 10 and 11, but at the beginning of the winding of the packaging material P (at the time of the first winding), the drive cylinder 65 Is operated, the swing arm 63 swings forward, as shown by a two-dot chain line in the same figure, and the distal end portion of the pressing member 64 presses and fixes the packaging material P against the upper surface of the annular article M. At the time of winding the packaging material P for the second and subsequent times, as shown by the solid line in the figure, the swing arm 63 swings rearward, and the pressing member 64 is retracted from the winding position α. Note that even when the holding member 64 is retracted from the winding position α,
Since the pressing member 64 is constantly urged to press the upper surface of the annular article M,
The packaging material P wound immediately before is fixed by entering the lower side of the pressing member 64 retracted from the winding position α.

The fixing mechanism 44 described above presses and fixes the packaging material P on the upper surface of the annular article M only at the initial stage of winding the packaging material P (at the time of the first winding). As described above, the adhesive belt 57f of the first fixing mechanism 51 holds the packaging material P at the winding position α even in the second and subsequent windings of the packaging material P, so that the self-adhesiveness is poor. When the packaging material P is used or when the self-adhesiveness of the packaging material P is not effectively exerted due to the surface properties of the annular article M, it is effective to employ such a fixing mechanism 50. When the self-adhesiveness of the packaging material P is very good, for example, when the adhesiveness of the packaging material P to the annular article M is extremely good, it is not always necessary to provide the fixing mechanisms 44 and 50 as described above. Absent.

FIGS. 12 and 13 show a second embodiment. In the above-described first embodiment, the rotating device 30 that grips the annular article M rotatably supported by the supporting device 20 from the outside by the clamp mechanism 31 and rotates the same is employed. , An annular article M rotatably supported by similar support means 20
Is rotated by a clamping mechanism 71 that grips the inner peripheral surface of the annular article M from the inside of the center hole h and a driving mechanism 76 that rotates the clamping mechanism 71 itself.
0 is adopted, and the configuration is different from that of the first embodiment.

This rotation means 70 is provided in FIG.
As shown in (b), the mounting table 21 is mounted on the mounting table 21 of the support means 20. The mounting table 21 is provided with a roller group 22 for mounting the annular article M in order to mount the rotation means 70.
The widths of a and 22b are smaller than in the first embodiment.

The clamp mechanism 71 includes a vertically extending cylindrical shaft 73 rotatably supported by an outer cylindrical portion 72 attached to the mounting table 21, and an operation shaft 74 rotatably fitted to the cylindrical shaft 73. And a clamp member 75 attached to the upper ends of the cylindrical shaft 73 and the operation shaft 74. The clamp member 75 is attached to the annular article M on the mounting table 21.
Are projected upward from the mounting surface.

FIG. 13A shows the clamp member 75.
As shown in (b), the first fixed to the cylindrical shaft 73
Rotator 75a, a second rotator 75b fixed to the operation shaft 74, three gripping arms 75c respectively pin-connected to the first rotator 75a at regular intervals, It comprises a second rotating body 75b and three links 75d each of which is pin-coupled to the grip arm 75c.
By rotating the operating shaft 74 relative to the cylindrical shaft 73 by rotating the operating shaft 74 relative to the cylindrical shaft 73, FIG.
As shown in (b), the gripping arm 75c changes from the unclamped state in which the gripping arm 75c is closed, as shown in FIG.
c is opened outward, and the grip arm 75c clamps the inner peripheral surface of the center hole h of the annular article M. It is needless to say that the operation shaft 74 can be returned to the unclamped state by rotating the operation shaft 74 relative to the cylindrical shaft 73 in the opposite direction.

The drive mechanism 76 includes a motor 77 as a drive source supported by the outer cylinder 72 via a bracket.
And a pulley 7 attached to the rotation shaft of the motor 77.
7a and a pulley 7 attached to the lower end of the cylindrical shaft 73
3a and a belt 7 suspended between both pulleys 73a, 77a
8, and the entirety of the cylindrical shaft 73, the operating shaft 74, and the clamp member 75 is rotated in a predetermined direction by the operation of the motor 77.

An operating cylinder (not shown) is attached to the pulley 73a. The operating shaft 74 is driven by a driving force of the operating cylinder to drive the operating shaft 74 through a gear 74a attached to the lower end of the operating shaft 74. The shaft 73 can be relatively rotated in the forward and reverse directions. Therefore, by operating this operation cylinder,
The annular article M can be clamped or unclamped by the clamp member 74.

In the packaging apparatus having the above-described configuration, the circular article M is conveyed by the transport conveyor 10 with the mounting table 21 lowered below the transport level so that the clamp member 75 does not protrude upward from the transport level. The winding position α
And the lifting mechanism 23 raises the mounting table 21 to lift the annular article M to the winding work level. At this time, the clamp member 75 is inserted into the center hole h of the annular article M in an unclamped state, as shown in FIG.

Here, by operating the operation cylinder, the annular article M is gripped by the clamp member 75, and then the motor 77 is operated to rotate the entire clamp mechanism 71, thereby placing the annular article M on the mounting table. The packaging material P is wound around the annular article M by the winding means 40 while rotating on the reference numeral 21. When the winding of the packaging material P by the winding means 40 is completed, the mounting table 21 is lowered to an initial position (a position below the transport level), and the packaged annular article M is carried out by the roller conveyor 12.

As described above, in this packaging device, the annular member M is gripped on the inner peripheral surface from the inside of the center hole h by the clamp member 74. Therefore, the rotation means 70 is disposed inside the annular article M. Thus, the space occupied by the rotation means 70 can be reduced. Thereby, the entire device can be downsized.

In this embodiment, the rotation means 70 is fixedly installed on the mounting table 21, and the rotation means 70 is moved up and down together with the mounting table 21 by the lifting mechanism 23. However, the present invention is not limited to this. It is also possible to move the rotation means 70 up and down with respect to the mounting table 21. As described above, when the rotation means 70 is moved up and down with respect to the mounting table 21, the rotation means 70 is moved with respect to the mounting table 21 when the transporting conveyor 10 conveys the annular article M to the winding position α. By lowering, the mounting table 21 can be set at the transport level, and there is an effect that the transport of the annular article M can be performed more smoothly.

FIGS. 14 and 15 show a third embodiment. In the above-described first and second embodiments, the work of winding the packaging material P around the annular article M by lifting the mounting table 21 on which the annular article M is rotatably mounted from the transport level by the elevating mechanism 23. Although the space is ensured, this packaging apparatus is designed to secure the work space for winding the packaging material P without lifting the mounting table 21 from the transport level to the upper side. Different from form.

As in the above-described two embodiments, this packaging apparatus includes a roller group 22a for rotatably mounting the annular article M in the middle of the conveyor 10a for transporting the annular article M from the supply port to the carry-out port. , 22b is provided, but unlike the above-described two embodiments, the mounting table 21 is disposed such that the roller groups 22a, 22b are respectively located before and after in the transport direction of the annular article M. And the wrapping position α is set so that the packaging material p is wound along the conveying direction of the annular article M.
Is set to the side.

The transport conveyor 10a is disposed beside the roller conveyor 11a disposed from the supply port of the annular article M to the discharge port and the mounting table 21 at the winding position α of the packaging material P. The belt conveyor 12a includes a pair of front and rear belt conveyors 12a. When the belt conveyor 12a conveys the annular article M, as shown by a two-dot chain line in FIG.
Overhangs to the side of the mounting table 21 (wrapping position α), and the packaging material P
At the time of winding, as shown by a solid line in the figure, a well-known operation is performed so as to retract from the winding position α of the packaging material P and secure a work space S for winding the packaging material P by the winding means 40. It is constituted by a telescopic conveyor.

The mounting table 21 has its roller groups 22a, 22
b, since the rotation direction of the plurality of rollers is different from that of the plurality of rollers forming the roller conveyor 10a,
When conveying the annular article M, the roller groups 22a, 22b
Is slightly lower than the transport level so as not to hinder the transport by the transport conveyer 10a, and when the packaging material p is wound, the transport conveyer 10a is slightly lower than the transport level so as not to hinder the rotation of the annular article M. The height position of the mounting table 21 can be finely adjusted by an elevating mechanism (not shown) so as to be higher.
Note that the rotation means 30 has the same configuration as that of the above-described second embodiment, and a description thereof will be omitted.

In the packaging apparatus configured as described above, the above-described belt conveyor 12a is moved from the winding position α without lifting the annular article M transported to the winding position α by the transport conveyor 10a upward by the mounting table 21. By retracting, the work space S around which the packaging material P is wound is secured, so that the efficiency of the winding operation of the packaging material P can be improved, and the transport area of the annular article M and the winding of the packaging material P can be improved. The work area can be shared, and the space of the device itself can be saved.

FIGS. 16 and 17 show a fourth embodiment. In the first embodiment described above, the rotating arm 42
The raw material roll R on which the elongate strip-shaped packaging material P is wound is directly attached to the tip of the material, and the packaging material P is unwound from the raw material roll R while rotating the rotary arm 42.
However, this packaging apparatus is different from the first embodiment in that the material roll R is fixedly installed at a predetermined position.

As shown in FIG. 16, the packaging device includes a winding roll 81 of a packaging material P that rotates vertically around the annular article M at the winding position, and a predetermined position on the winding roll 81. A packaging material supply mechanism 82 for feeding out and supplying the packaging material P from the fixed fabric roll R,
The packaging material supply mechanism 82 can wind the packaging material P having a length necessary for packaging one annular article M around the winding roll 81 in advance just before packaging the annular article M. ing.

The packaging material supply mechanism 82 feeds the raw material roll R fixedly installed at a predetermined position and the packaging material P unwound from the raw material roll R to a predetermined packaging material supply position δ. A packaging material feeding roller 83 for winding the packaging material P around the winding roll 81 at the packaging material supply position δ, and a cutting for cutting the packaging material P wound around the winding roll 81 by the packaging material feeding roller 83. Blade 84, web roll R and packaging material feeding roller 8
3 and a storage material portion 85 for storing the packaging material P to some extent. The storage material portion 85 includes two guide rollers 85a and a packaging material P between the two guide rollers 85a. And a dancer roller 85b supported so as to be able to move up and down so as to detour downward by its own weight.

The packaging material feeding roller 83 is composed of an upper roller 83a and a lower roller 83b which sandwich the packaging material P. When the packaging material P is supplied, as shown by a solid line in FIG. The upper roller 83a moves forward to the position δ, comes into contact with the winding roll 81, and retreats from the packaging material supply position δ as indicated by the two-dot line in FIG. It has become.

The upper roller 83a is rotated by driving means (not shown) so that the lower roller 83b is rotated.
The packaging material P sandwiched in between is sent out, and at the same time, the wound-up roll 81 is rotated so as to be wound around the wound-up roll 81. The upper roller 83a has a large number of suction holes (not shown) formed on the outer peripheral surface thereof, so that the packaging material P can be suction-held on the outer peripheral surface by a suction means (not shown). .

In the packaging apparatus configured as described above, first, after the winding roll 81 stops at the packaging material supply position δ, the packaging material feeding roller 83 moves forward, so that the upper roller 83a turns the winding roll 81. Contact Here, the upper roller 83a
Is driven to rotate by a driving unit (not shown), and the packaging material P unwound from the raw material roll R is wound around the winding roll 81 as described above. Then, when the packaging material P having a length necessary for packaging one annular article M is wound around the winding roll 81, the rotation of the upper roller 83a is stopped, and the packaging material feeding roller 83 is retracted to the initial position. I do.

Here, as described above, the wrapping roll 81 winds the packaging material P around the annular article M while rotating around the rotating annular article M in the vertical direction. At the time of the first winding), as shown in FIG.
Since the packaging material P is fixed to the upper surface of the annular article M by the fixing mechanism 44, when the packaging material P is fixed by the fixing mechanism 44, the cutting blade 84 advances to cut the packaging material P, and the raw material roll R Disconnect from the side.

When the packaging material P is cut in this way,
The above-described suction means is operated, and the leading end of the cut packaging material P on the material roll R side is suction-held on the outer peripheral surface of the upper roller 83a, and waits until the next supply of the packaging material P. At the next supply of the packaging material P, the upper roller 83a
When the package material P is sucked and held on the outer peripheral surface, the starting end of the package material P is sandwiched between the winding roll 81 and the packaging material P. It is stuck and can be wound. Therefore, the upper roller 8
It is desirable that the outer peripheral surface of 3a be formed of a material to which the packaging material P is unlikely to be adhesively held.

In the packaging apparatus configured as described above, since it is not necessary to rotate the heavy material roll R around the annular article M, it is possible to reduce the size of the driving mechanism of the winding means. In addition, since a large material roll R wound with a wrapping material of a considerable length can be used, there is no need to frequently replace the material roll R, and a large number of annular articles M can be obtained without stopping the apparatus. Can be continuously and efficiently packaged.

In this embodiment, one material roll R is used. However, as shown by a two-dot chain line in FIG. Material P
If the end of the packaging material P is connected to the starting end of the packaging material P unwound from the other material roll R when there is no more, the apparatus can be continuously formed without stopping the apparatus at all. Can be packaged.

The connection of the packaging material P can be automatically performed by using a known connection device.
Since the packaging materials P have self-adhesiveness, they can be easily connected only by overlapping each other, and thus can be manually performed. In this case, the supply of the packaging material P from the material roll R is temporarily stopped.
As indicated by a two-dot line, the dancer roller 85b rises, and the packaging material P stored in the storage material section 85 is sent out, so that it is not necessary to stop the apparatus.

In this embodiment, a wrapping material P having a length necessary for packaging one annular article M is wound around a winding roll 81.
However, the present invention is not limited to this, and the packaging material P having a length necessary for packaging the plurality of annular articles M may be wound around the winding roll 81 at one time. It is possible.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of a packaging device according to the present invention.

FIG. 2 is a front view showing the packaging device.

FIG. 3 is a side view showing the same packaging device.

FIG. 4 is a partial plan view showing a state where winding of a packaging material by the packaging device is started.

FIG. 5 is a partial plan view showing a state in which a packaging material is being wound by the packaging device.

FIG. 6 is an explanatory diagram showing a step of winding a packaging material by the packaging device of the above.

FIG. 7 is a front view showing a first fixing mechanism which is a modified example of the packaging material fixing mechanism in the above packaging device.

FIG. 8 is a side view showing the first fixing mechanism of the above.

FIG. 9 is a schematic side view for explaining the operation of the first fixing mechanism of the above.

FIG. 10 is a side view showing a second fixing mechanism which is a modified example of the packaging material fixing mechanism in the above packaging device.

FIG. 11 is a schematic plan view showing the arrangement and movement of a first fixing mechanism and a second fixing mechanism of the above.

FIG. 12 is a schematic view showing the rotation means of the packaging device according to the second embodiment.

FIG. 13 is a detailed view showing a clamp mechanism of the rotation means according to the first embodiment.

FIG. 14 is a schematic plan view showing a packaging device according to a third embodiment.

FIG. 15 is a schematic front view showing the same packaging device.

FIG. 16 is a schematic configuration diagram of a packaging device according to a fourth embodiment.

FIG. 17 is a schematic diagram showing an initial state of wrapping a packaging material by the packaging device of the above.

FIG. 18 is a perspective view showing a new packaging form of the annular article.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging apparatus 10, 10a Conveyor conveyor 11, 11a, 12 Roller conveyor 12a Belt conveyor 20 Supporting means 21 Mounting table 22a, 22b Roller group 23 Elevating mechanism 30 Self-rotating means 31, 71 Clamp mechanism 32b, 33c Roller 34, 76 Drive mechanism 40 Winding means 44, 50 Fixing mechanism 81 Winding roll 82 Packaging material supply mechanism P Packaging material M Annular article R Raw material roll α Winding position

Claims (7)

[Claims] 1. A long strip-shaped packaging material formed of a synthetic resin film having good stretchability and self-adhesiveness,
An annular article packaging device for packaging an annular article by winding it around an annular article while gradually shifting its position so as to avoid a center hole, wherein a part of the annular article is located at the winding position of the packaging material. As described above, at a position other than the winding position, at a position other than the winding position, the annular article is rotatably supported with its center hole as a center of rotation. An annular article comprising: a rotating means for rotating as a unit; and a winding means for continuously winding the packaging material at the winding position on the annular article partly rotating so as to pass through the winding position. Packaging equipment. 2. The annular article according to claim 1, wherein the wrapping means includes a fixing mechanism for pressing and fixing a starting end of the wrapping material to the annular article at an initial stage of winding the wrapping material. Packaging equipment. 3. The supporting means includes a plurality of roller members for mounting the annular article at a position other than the winding position and rotatable at a fixed position substantially in the circumferential direction of the annular article at the mounting portion. The packaging device for an annular article according to claim 1 or 2, wherein the packaging device comprises a mounting table. 4. A clamping mechanism comprising: a plurality of rollers for gripping an outer peripheral surface of the annular article from outside at a position other than the winding position; and at least one of the plurality of rollers. 4. The packaging device for an annular article according to claim 1, further comprising: a driving mechanism for rotatingly driving the annular article. 5. The rotating means comprises a clamp mechanism for gripping the inner peripheral surface of the annular article from inside the center hole, and a drive mechanism for rotating the clamp mechanism. A packaging device for an annular article according to claim 1. 6. A transport conveyor for the annular article is provided so as to pass through the winding position, and the transport conveyor, when winding the packaging material around the annular article by the winding means, The packaging device for an annular article according to claim 1, further comprising a telescopic conveyor retracted from a winding position and securing a work space for winding the packaging material by the winding means. 7. A winding roll around which the wrapping material is wound, wherein the wrapping means winds the wrapping material around the annular article in the winding position while vertically rotating around the annular article. Unrolling the packaging material from the web roll wound with the long strip-shaped packaging material, the packaging material of a length necessary to wrap at least one of the annular articles, the winding roll in advance And a packaging material supply mechanism for winding.
The packaging device for annular articles according to 3, 4, 5, or 6.