JPS63110110A - Hollow-hole inner circumferential surface packer - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to the inner circumferential surface of a sheet roll or sheet coil wound with paper, plastic film, cloth, metal thin plate, etc., or other articles having hollow holes. For example, the present invention relates to a device for packaging with packaging materials such as paper or thin metal sheets.

[Conventional technology]

Conventionally 9 For example, when shipping a thin metal plate after rolling,
In order to protect quality during transportation, such as waterproofing, rust prevention, and prevention of scratches, it is common to wrap the product in double, triple, or more layers with packaging materials such as thin paper, cardboard, or thin metal plates. In the sheet coil formed by winding the metal thin plate mentioned above, it is necessary to adhere the packaging material not only to the outer peripheral surface and both end surfaces, but also to the inner peripheral surface of the hollow hole. It is also necessary to ensure close contact between them.

[Problem that the invention seeks to solve]

In the prior art described above, for example, there are many similarities between a device that winds a sheet into a coil and a device that wraps packaging material around the outer periphery of a sheet coil, so the wrapping of the outer periphery of a sheet coil has been automated relatively early. However, packaging of the inner peripheral surface of the hollow hole of the sheet coil has many problems compared to the above-mentioned outer peripheral surface, and automation has not yet been achieved. Most of the work is done manually, which is extremely inefficient and requires a large amount of man-hours and time. On the other hand, if the hole diameter of the cylindrical body is a constant size, mechanization or automation using a special machine is possible, but in the case of a line configuration that processes sheet coils of various sizes at the same time, it is possible to automatically The problem is that it is extremely difficult to package and requires inefficient manual work.

An object of the present invention is to solve the problems existing in the above-mentioned prior art and to provide an apparatus that can automatically wrap the inner circumferential surface of a hollow hole.

[Means for solving problems]

One aspect of the present invention is to solve the above problems.

A. Near the holding means for holding the article having a hollow hole,
A winding mechanism having an axis parallel to the axis of the hollow hole is provided so as to be rotatable around the axis, freely to move in and out in the axial direction of the hollow hole, and to be freely movable in a direction perpendicular to the axis of the hollow hole.

B. A shaft is passed through the center of the winding mechanism, and an end plate is fixed to the shaft through a distance greater than the length of the hollow hole.

C1 A plurality of pairs of arms are fixed to the end plate for synchronous rotation, and the free ends of the arms are formed so as to be expandable outward from the outer edge of the end plate.

D. A hollow pipe having a plurality of holes for blowing out air is interposed between the free ends of each pair of arms.

E. A rotating member is fixed to both ends of the hollow pipe, and a link is interposed between the rotating member and the end plate to form the hollow pipe so that it can freely rotate in conjunction with the rotation of the arm. .

F. A roller is provided between the two end plates so as to be rotatable coaxially with and independently of the rotating shaft of any one of the pair of arms.

G. A fixed guide and a movable guide formed concentrically with the roller are provided outside the roller with a gap in between.

H9: A suction device is provided at the free end of the arm, which is close to the roller in the contracted state of the arm, so as to face the outside of the winding mechanism.

(2) A guide is provided between the arms provided with the suction device, passing through the winding mechanism, and a roller for supplying the taping material, a cutter, and a presser rubber are brought into contact with the inner peripheral surface of the hollow hole through this guide. Provided to be detachable and movable parallel to the axis of the hollow hole.

This technical method was adopted.

[Effect]

With the above configuration, first, from the packaging material supply equipment, packaging material corresponding to the axial length and circumferential length of the hollow hole to be wrapped is wound around the outer periphery of the nine winding mechanism. Next is the winding mechanism that winds up the above packaging material.

It is moved from the supply equipment and inserted into the hollow hole with the five axes aligned. Next, multiple pairs of arms.

The outer peripheries thereof are expanded until they touch the inner circumferential surface of the hollow hole, and the winding end of the packaging material is crimped onto the inner circumferential surface of the hollow hole. In this case, while rotating the roller in the opposite direction to the winding direction and unwinding the S-taken packaging material, compressed air is blown out from the hole provided in the hollow pipe in the tangential direction of the inner peripheral surface of the hollow hole, and the packaging material is is stretched while maintaining a substantially circular cross section, and brought into close contact with the inner circumferential surface of the hollow hole. Next, with the starting and ending ends of the packaging material polymerized, a taping material is attached to the overlapping portion to fix the packaging material to the inner circumferential surface of the hollow hole. The above series of operations is performed automatically. Furthermore, since the hollow pipe is formed to be rotatable in conjunction with the rotation of the arm by interposing a link, the blowing direction of the compressed air is determined depending on the diameter of the hollow hole. This allows the material 1F to be in an optimal state for crimping the inner peripheral surface of the hollow hole.

〔Example〕

FIG. 1 is an overall side view showing an embodiment of the present invention. Reference numeral 1 denotes a moving device, which is configured to be movable on a rail 2 by a motor 3. FIG. 4 is the shaft.

It is provided on the upper part of the moving device 1 parallel to the rail 2 and rotatably via a motor 5. Next, 6 is a winding mechanism, which is formed so as to be able to wind the packaging material 7 around its outer periphery, and is fixed coaxially to the end of the shaft 4. The shaft 4 and the winding mechanism 6 are movable in a direction perpendicular to their axis. Note that what is indicated by a chain line is the sheet coil 8,
The axis of the hollow hole is held horizontally on a conveyor or other holding means (not shown). 8a and 8b represent sheet coils 8 corresponding to the maximum and minimum dimensions, respectively. Therefore, the winding mechanism 6 needs to be formed so as to be able to penetrate the hollow holes 9a and 9b of the sheet coils 8a and 3b.

Next, FIG. 2 is an enlarged side view of the main part of the winding mechanism 6 shown in FIG. 1, FIG. 3 is an enlarged plan view of the main part of the hollow pipe constituting the winding mechanism 6, and FIGS. AA line sectional view, BB line sectional view, and C-C in FIG. 2, respectively.
It is a line cross-sectional view, and the same parts are designated by the same reference numerals as in FIG. 1. In these figures, 10 is the shaft and 1
It is provided coaxially with the winding mechanism 6 and passing through the winding mechanism 6. Next, reference numerals 11a and llb are end plates, which are fixed to both ends of the shaft 10. 12a, 12b, and 12c are arms, and one end thereof is fixed to a shaft 13 rotatably attached to the end plates 11a and 11b, so that the end plate 1
1a and llb so as to be rotatable. A pulley 14 is fixed to the shaft 13.

A pulley of the motor 15 provided on the end plate 11a (not shown)
The shafts 13 are rotated synchronously via the belt 16, and the arms 12a and 12b are rotated synchronously.

The free end of the end plate 12c is formed to be expandable outward from the outer edge of the end plate 11a, llb. Next, the arms 12a, 12b,
A hollow pipe 18 having a plurality of holes 17 arranged around its outer periphery is interposed between the free ends of the pipe 12c, as shown in FIG. Bearings 19 are installed at both ends of the hollow pipe 18 as shown in FIG.
This bearing 19 and the end plates 11a, 11b are fixed together.
A link 20 is interposed between the arms 12a, 12b, and 12c to form a hollow pipe rotatable in conjunction with the rotation of the arms 12a, 12b, and 12c. Next, on the rotation shaft 13 of the front pair of arms, for example, the arm 12C.

As shown in FIG. 2, a roller 21 is provided coaxially and independently rotatably between the end plates Lla and llb. roller 2
A fixed guide 22 and a movable guide 23, which are formed concentrically with the roller 21, are provided on the outside of the roller 1 with a gap therebetween.

Next, in FIG. 5, a vacuum suction device 24 is attached to the free end of the arm 12a whose free end is close to the roller 21 in the contracted state of the arms 12a, 12b, and 12c. Installed so as to face the outside of 6.

FIG. 7 is a view taken along the line DD in FIG. 5.

Identical parts are designated by the same reference numerals as in FIGS. 1 to 6. In the figure, below the shaft 13 is a guide 25.
26 is provided over the entire length of the winding mechanism 6 in parallel with the first draft, and a taping device 27 is interposed therebetween so that it can freely move back and forth within the horizontal 6 of the winding machine.

28 is a loftless cylinder, which is connected to the taping device 27 to form a driving source. Taping device 27
From the free end side of the @taking mechanism 6, there are rollers 29 for supplying taping material. A cutter 30 and a presser rubber 31 are provided, and the roller 29. A cutter 30 and a presser rubber 31 are formed so as to be able to come into contact with and separate from the inner peripheral surface of the hollow hole 9 of the sheet coil 8.

The first-order effect will be described using the above configuration.

Figures 8 to 15 are explanatory diagrams showing the process of winding up the packaging material and applying it to the inner peripheral surface of the hollow hole, and the same parts are designated by the same reference numerals as in Figures 1 to 7. , first, in FIG. 8, the roller 21 in the winding mechanism 6 is replaced with the roller 3 in the supply equipment.
It is in a state where it is in contact with 2. In this case, arm 1
2a, 12b.

12c are all in a reduced state, and the moving guide 2
3 is in a closed state. In this state, the zero-order roller 2 supplies the packaging material 7 in the direction of the arrow through the guide 33.
1. When 32 are rotated in the directions of the arrows, the packaging material 7 moves while being held by the rollers 21 and 32, and the moving guide 2
3 and the fixed guide 22 around the outer periphery of the roller 21 .

Here, the length of the packaging material 7 wound around the roller 21 is determined from the total length of the packaging material 7 corresponding to the inner peripheral length of the target hollow hole (not shown) to the length of the wrapping material 7 wound around the @-taking mechanism 6 once. The length is calculated by subtracting the length necessary for the rotation of the roller 21, and is converted into the required number of rotations of the roller 21 calculated in advance, and when the roller 21 reaches the required number of rotations, the rotation of the roller 21 is stopped,
After removing the moving guide 23 from the outer periphery of the roller 21 1
The entire winding mechanism 6 is rotated approximately one rotation clockwise. Due to the above rotation, the packaging material 7 is rotated as shown in FIG.

It is wound around the outer periphery of the winding mechanism 6, and the terminal end 7a is sucked by the vacuum suction device 24, and the rotation of the winding mechanism 6 is stopped.
The packaging material 7 is held wrapped around the outer periphery of the winding mechanism 6. The above-mentioned work is carried out in a supply facility (not shown) for the packaging material 7. Next, the winding mechanism 6 that has wound up the packaging material 7 in the above manner is moved through the moving device l shown in FIG. Move it.

Winding mechanism 6 and sheet coils 8a, 8bf) Hollow hole 9
A hollow hole 9a is created by twisting both axes of a and 9b.

Insert into 9b.

FIG. 1O shows a state in which the arms 12a, 12b, and 12c are expanded after the winding mechanism 6 that has wound up the packaging material 7 as described above is inserted into the hollow hole 9 of the sheet coil 8, that is, Rotate the shirt 13 (shown in FIGS. 4 to 6) clockwise.

Arms 12a, 12b as shown in FIG. 1O.

12c, the roller 21 is rotated counterclockwise (the direction of rotation is not shown), and the packaging material 7 wound around the outer periphery of the roller 21 is rolled out. , 12b, 12 (7) are held by a hollow pipe 18 interposed at the outer peripheral end. Note that the arm 12a
, 12b, and 12c are such that the expansion operation is stopped when the vacuum suction device 24 provided at the free end of the arm 12a comes into contact with the inner peripheral surface of the hollow hole 9 of the sheet coil 8.

It is set in advance in accordance with the inner diameter dimensions of the hollow holes 9 of various sheet coils 8.

FIG. 11 shows a state in which the packaging material 7 is brought into close contact with the inner peripheral surface of the hollow hole 9 after the arms 12a, 12b, and 12c have completed their respective expansions, that is, the packaging material 7 is further fed out by the rollers 21. but.

Since compressed air is blown out from the plurality of holes provided in the hollow pipe 18 in the direction of the arrow (tangential direction to the inner peripheral surface of the hollow hole 9), the packaging material 7 is held in a substantially circular cross section and stretched to form a hollow pipe. It can be brought into close contact with the inner circumferential surface of the hole 9, and furthermore, the terminal end 7a
The starting end 7b is in a superposed state on top. Furthermore, hollow pipe 1
8, a link 20 is interposed therebetween as shown in FIGS. 5 and 6.

Regardless of the movement of the arms 12a, 12b, and 12c, the plurality of holes (not shown) for blowing out air are always formed so as to face in the direction of the inner circumferential surface of the hollow hole 9. The packaging material 7 can be stretched while being held in a substantially circular cross section.

FIGS. 12 to 15 are diagrams showing the operation of the taping device, and correspond to FIG. 7. First, FIG. 12 shows a state in which the terminal end 7a and the starting end 7b of the packaging material 7 are superposed as shown in FIG. 11.

FIG. 7 shows a state in which the taping device 27 moves in the direction of the arrow due to the operation of the rodless cylinder 28 shown in FIG. Next, in FIG. 13, as the taping device 27 enters, the tape 33 is supplied by the taping material supply roller 29, and the tape 33 is pressed onto the inner peripheral surface of the hollow hole 9 by the roller 29. FIG. 14 shows a state in which the taping device 27 has further advanced into the hollow hole 9, and
As shown in FIG. 5, when the taping is completed to the end of the hollow hole 9, the tape 33 is cut by the cutter 30, and the taping work is completed.

That is, when the roller 29 reaches the end of the hollow hole.

Since the tape 33 is separated from the inner circumferential surface of the hollow hole 9, it is cut by the cutter 30, and the terminal end of the tape 33 is pressed and adhered by the presser rubber 31. After the taping is completed, the tape 33 is wound up by the operation of the motor 34 shown in FIG.

The winding mechanism 6 is removed from the hollow hole 9 by operating the ronless cylinder 28 in the opposite direction. Thereafter, the above operation is repeated.

In this embodiment, the case of a hollow cylindrical sheet coil has been described, but the present invention is not limited to this, and the present invention is similarly applicable to articles having hollow holes in other shapes. Further, although an example has been shown in which there are three pairs of arms forming the winding mechanism, the number of arms to be installed should be appropriately selected depending on the dimensional range of the target hollow hole.

〔Effect of the invention〕

Since the present invention has the structure and operation as described above, the following effects can be expected.

(1) Even for hollow holes with different inner diameters and lengths, the inner peripheral surface can be reliably wrapped using the same device.

(2) Since the packaging work is automated, it is possible to greatly improve work efficiency and improve the quality of packaging.

A reduction in variation is achieved.

(3) Since it can be directly connected to a production line for articles or members having hollow holes, productivity can be improved and work space can be significantly reduced.

(4) Even when the packaging material is thin paper, the inner peripheral surface of the hollow hole can be easily and reliably wrapped by the action of the arms and compressed air.

[Brief explanation of the drawing]

FIG. 1 is an overall side view showing an embodiment of the present invention, FIG. 2 is an enlarged side view of a main part of the winding mechanism 6 in FIG. 1, and FIG. 3 is a main part of a hollow pipe constituting the winding mechanism 6. Enlarged plan view, 4th
Figures 6 to 6 are A-AvA cross-sectional view, B-B'41A cross-sectional view, c-cm cross-sectional view, and No. 7 in Figure 2, respectively.
The figure is a view taken along the line D-D in Fig. 5, and a view from Fig. 8 to 1.
FIG. 5 is an explanatory view showing the process of winding up the packaging materials and applying them to the inner peripheral surface of the hollow hole. 6: Winding mechanism, 7: Packaging material, 8.3a, AB Nijito coil, 9.9a, 9b: Hollow hole. 11a, llb: end plate, 12a, 12b, 12c: arm, 18: hollow pipe, 20: link. 22: Fixed guide, 23: Moving guide, 27: Taping device, 33: Tape. 10th [! 1 JPY 14 m No. 15 (Issue of the principal of the proceedings) November 25, 1985 Patent Application No. 250451 of 1988 2. Name of the invention Hollow hole inner peripheral surface packaging device 3. Related Patent Applicant Address 2-1-2 Marunouchi, Chiyoda-ku, Tokyo Name (5
0B) Hitachi Metals Co., Ltd. Representative: Koji Matsuno (1 other person) 4, Agent address: 4-17-1-6, Nishi-Nippori, Arakawa-ku, Tokyo "Detailed description of the invention" in the specification subject to amendment A> Contents of the amendment (1) In lines 2 to 9 of page 4 of the specification, the statement ``In the above-mentioned prior art, songs are often done by hand.'' has been changed to the following: Correct it as follows. ``In the above-mentioned conventional technology, the wrapping of the inner peripheral surface of the hollow hole of the sheet coil is often done manually.''

Claims (3)

[Claims] (1) A winding mechanism having an axis parallel to the axis of the hollow hole is placed near the holding means for holding the article having the hollow hole, and is rotatable around the axis, freely moving in and out in the axial direction of the hollow hole, and A shaft is provided to be movable in a direction perpendicular to the axis of the hole, and a shaft is passed through the center of the winding mechanism, and an end plate is fixed to the shaft through a distance larger than the length of the hollow hole. A plurality of pairs of arms are fixed to the end plate so as to rotate freely in synchronization, and the free ends of the arms are formed to be expandable outward from the outer edge of the end plate, and air is blown out on the outer periphery between the free ends of each pair of arms. A hollow pipe having a plurality of holes arranged therein is interposed, a rotating member is fixed to both ends of the hollow pipe, and a link is interposed between the rotating member and the end plate. is formed to be freely rotatable in conjunction with the rotation of the arms, and a roller is provided between the both end plates so as to be rotatable coaxially with and independently of the rotation axis of any one of the pair of arms;
A fixed guide and a movable guide formed concentrically with the roller are provided outside the roller with a gap in between, and a suction device is wound around the free end of the arm whose free end is close to the roller when the arm is contracted. A guide is provided between the arms facing the outside of the take-up mechanism and provided with the suction device, passing through the take-up mechanism, and a roller for supplying the taping material, a cutter, and a presser rubber are provided through the guide. A packaging device for the inner circumferential surface of a hollow hole, characterized in that it is provided so as to be able to freely come into contact with and separate from the inner circumferential surface of the hollow hole, and to be able to freely move parallel to the axis of the hollow hole. (2) A hollow hole inner peripheral surface packaging device according to claim 1, wherein the article is a cylindrical body. (3) The hollow hole inner peripheral surface packaging device according to claim 1 or 2, wherein the axis of the hollow hole is horizontal.