JPH06321214A - Inner peripheral packing paper setter of strip coil - Google Patents

Abstract

PURPOSE:To securely charge and set an inner peripheral packing paper without shifting at the inner peripheral part, in the packing of a strip coil. CONSTITUTION:In an inner peripheral packing paper setter of a strip coil 21 having a mandrel 1 inserting the inner peripheral packing paper 15 onto the inner peripheral face 22 of the coil 21, which is inserted in the inner diametral part 23 of the downend type strip coil 21 and expanded therein, this device is provided with a pressing bar 2 of the tail end 16 of the inner peripheral packing paper 15, a rotary mechanism 3 rotating the pressing bar 2, and a reciprocating mechanism 4 of the pressing bar moving back and forth between the initial insertion position of the pressing bar 2 and the retreated position behind the winding position of inner peripheral packing paper, at the inserting initial position toward the inner diametral part 23 of the strip coil of the mandrel 1 on which the inner peripheral packing paper 15 is wound up.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting packing paper on the inner peripheral surface of a strip coil when the strip coil such as strip steel is packed.

[0002]

2. Description of the Related Art When packing a coil product in which a strip of steel strip or the like is wound in a cylindrical shape (hereinafter referred to as a strip coil) with a packaging paper in which kraft paper and polyethylene or the like are attached, While mounting the inner packing paper on the inner peripheral surface of the coil, and then mounting the outer peripheral packing paper on the outer peripheral surface, fold and mount both sides of the outer peripheral packing paper from both end surfaces of the coil to the inner peripheral edge. There is a way.

The mounting of the packing paper on the inner peripheral surface of the strip coil is carried out by the device described in Japanese Patent Laid-Open No. 1-167017, and its outline will be described with reference to FIG. 1 which is an explanatory view of the present invention. To do. As shown in FIG. 1 (a), the strip coil 21 is placed in a down-end type, and the mandrel insertion mechanism 5 allows the inner peripheral packing paper 15 to be wound around the mandrel 1.
It is inserted into the inner diameter portion 23 of the strip coil 21. As shown in the sectional view of FIG. 1 (b), the mandrel 1 has an umbrella frame 9 and an expansion / contraction bag 10 which are coaxially rotatable about an axis 8, and the inner peripheral packing paper 15 has a front end holding a paper front end presser 11 Is pressed and rolled.
Mandrel 1 inserted in the inner diameter portion 23 of the strip coil 21
The umbrella bone 9 expands and contracts in the radial direction, and the expansion and contraction bag 10 expands.
The inner peripheral packing paper 15 is stretched over the inner peripheral surface 22 of the strip coil 21, and the front and rear ends of the inner peripheral packing paper 15 are taped and mounted.

[0004]

In such a conventional inner circumference packing paper mounting device, there is a problem that the inner circumference packing paper 15 is not inserted into the inner diameter portion 23 of the strip coil 21.
That is, as shown in FIG. 1 (b), the tail end 16 of the inner peripheral packaging paper 15 may jump up without following the outer periphery of the mandrel 1, and even if the mandrel 1 is inserted into the inner diameter portion 23 in this state, Peripheral packing paper 15 is not inserted, or even if it is inserted, it slips or wrinkles, which prevents normal mounting.

It is an object of the present invention to reliably insert and mount an inner peripheral packing paper in an inner diameter portion of a coil when packing a strip coil.

[0006]

According to the present invention, there is provided a strip having a mandrel which is inserted into an inner diameter portion of a strip coil of a down-end type and is expanded to mount an inner peripheral packing paper on an inner peripheral surface of the coil. In the inner circumference packing paper mounting device of the plate coil,
A presser bar for pressing the tail end of the inner peripheral packing paper at the insertion start position of the mandrel around which the inner peripheral packing paper is wound toward the inner diameter portion of the strip plate coil, and a rotating mechanism for rotating the presser bar. A presser bar advancing / retreating mechanism for advancing / retreating the presser bar between the insertion start position and the retracted position behind the inner peripheral packing paper winding position is provided.

A typical example of the device of the present invention has the configuration shown in FIG. 1 which will be described in detail in the embodiment, and the operation thereof is as described in the embodiment, but the holding bar 2 has an end on the paper side of the inner packing paper 15. 17
May be separated from the tail end 16 of the packaging paper when the sheet is inserted into the inner diameter portion 23 of the strip coil 21. Also, the presser bar 2,
The presser bar rotating mechanism 3 and the presser bar advancing / retreating mechanism 4 are shown in FIG.
The mandrel 1 is attached to the mandrel insertion mechanism 5 as shown in FIG.
It may be a structure that moves independently.

[0008]

[Examples] Strip steel coil products (plate width: 800 to 2200)
mm, coil inner diameter: 508, 610, 711, 762 mm)
Then, an inner peripheral packing paper having a width (coil width of 60 mm) obtained by pasting kraft paper and a polyethylene sheet was mounted by the device of FIG. Immediately after the inner peripheral packing paper 15 is wound around the mandrel 1, the winding device retreats, the presser bar advancing / retreating mechanism 4 is moved forward, and the presser bar rotating mechanism 3 is actuated to move the inner peripheral packing paper 15 by the presser bar 2. Hold down the tail end 16. The pressed position is 200 mm from the edge of the inner packing sheet. Immediately thereafter, the mandrel 1 is started to be inserted into the inner diameter portion 23 of the strip plate coil 21 by the mandrel inserting mechanism 5, and the presser bar advancing / retreating mechanism 4 retracts the presser bar 2 to fix the presser bar at the insertion start position A of the mandrel. Continue pressing the tail end 16, and after the required time calculated from the detection of the strip coil end face by the distance sensor 6 and the packing paper width and mandrel insertion speed, the presser bar rotating mechanism 3 is operated to pack the presser bar 2 on the inner circumference. Separated from paper 15. During this time, the tail end 16 of the packing paper was kept pressed within the range of 200 mm from the edge. The presser bar 2 continued to retreat and was stopped at the same time when the insertion of the mandrel 1 was stopped.

Subsequently, the mandrel 1 was retracted to the position shown in the figure, and the next work of winding the inner peripheral packing paper 15 was started. At this time, the presser bar 2 is in the retracted position B. When the winding of the inner peripheral packing paper 15 is completed, the holding bar advance / retreat mechanism 4
Was moved forward, and the next mounting was performed by repeating the above operation. An approach sensor 7 is attached to the presser bar rotating mechanism 3 so that when the end face of the strip coil 21 is approached for a predetermined distance or more, the presser bar advancing / retreating mechanism 4 stops advancing, and the presser bar due to a malfunction occurs. Problems such as damage to the bar 2 are avoided.

[0010]

As described above, according to the present invention, when the inner peripheral packing paper of the strip coil using the mandrel is mounted, it is possible to always stably and surely mount the packing sheet without shifting, and to perform the automatic packing operation of the strip coil. In the above, there is no trouble of stopping the work, the operation rate of the automatic packing machine is improved, and the deterioration of the packing appearance can be prevented.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a device of the present invention.

[Explanation of symbols]

 1: Mandrel 2: Presser bar 3: Presser bar rotation mechanism 4: Presser bar forward / backward mechanism 5: Mandrel insertion mechanism 6: Distance sensor 7: Proximity sensor 8: Shaft core 9: Umbrella 10: Expansion / contraction bag 11: Paper tip presser 15: Inner circumference packing paper 16: Tail end 17: Paper side end 21: Strip coil 22: Inner surface 23: Inner diameter part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiro Nishino Oita City Oita 957-4 Ino Sankyu Co., Ltd. House S13-308

Claims (1)

[Claims] 1. An inner-peripheral packing paper mounting for a strip-plate coil having a mandrel which is inserted into an inner diameter portion of a down-end type strip coil and expanded to mount an inner-peripheral packaging paper on an inner peripheral surface of the coil. In the device, at the insertion start position of the mandrel around which the inner circumference packing paper is wound toward the inner diameter portion of the strip plate coil, a holding bar that holds the tail end of the inner circumference packing paper and a rotation bar that rotates the holding bar. An inner circumference of the strip coil, characterized in that a moving mechanism and a holding bar advancing / retreating mechanism for moving the holding bar forward / backward between the insertion start position and the retracted position rearward of the inner circumference packing paper winding position are provided. Packing paper loading device.