JP4262688B2 - Winding roll product surface packaging machine - Google Patents

Description

  The present invention relates to a surface packaging machine for take-up roll products. More specifically, the present invention relates to a surface wrapping machine used in a process of wrapping a take-up roll product wound in a roll shape such as a newspaper paper roll, a kraft paper roll, and a medium-quality paper roll with wrapping paper.

  Packaging of the take-up roll product is generally performed by the process shown in FIG. i and ii are surface wrapping processes in which the wrapping paper W is wound around the take-up roll product R, i indicates the start of winding, and ii indicates the end of winding. iii is the process of wrapping the remaining part of the wrapping paper W, that is, the process of folding the ear along the R end surface of the take-up roll product, and iv sticking a circular inner paper (not shown) and the outer paper F to the folded part of the ear. It is a process to do. By performing these steps, packaging of the take-up roll product R is completed.

A surface wrapping machine is used in the surface wrapping process (Non-Patent Document 1).
The structure of this surface packaging machine will be described with reference to FIGS. In the surface wrapping machine M, two receiving rolls 2 and 3 are arranged in parallel on the machine base 1, and the receiving-side receiving roll 3 is rotationally driven by a motor 4.
If the take-up roll product R is put on the two receiving rolls 2 and 3 and the receiving rolls 2 and 3 are rotated, the take-up roll product R rotates. If the wrapping paper W is inserted into the nip portion (referred to as a portion to be sandwiched) between the roll 2 and the wrapping paper W is taken up via the nip portion between the receiving roll 3 and the take-up roll product R. It is wound along the outer surface of the product R.

However, the above prior art has the following problems.
The wrapping paper W is fed out from the nip portion between the receiving roll 2 and the take-up roll product R directly under the take-up roll product R. In order to prevent the tip of the wrapping paper W from hanging down, the guide plate 5 is used. It is installed and guided so that the front end of the wrapping paper W is sandwiched between the nip portions of the receiving roll 3. However, since there is some resistance when passing through the nip portion of the receiving roll 3, the wrapping paper W hangs down between the receiving rolls 2 and 3, and the wrapping paper W remains loose and the winding roll Wrapped around product R If the wrapping is performed while the slack is generated as described above, the slack remains after the packaging, so that the wrapping paper W is easily broken or has a bad appearance.

Latest Paper Processing Handbook Paper Processing Handbook Editorial Committee Edition Tech Times Co., Ltd. Issued August 20, 1988 Pages 354-356

  In view of the above circumstances, an object of the present invention is to provide a surface wrapping machine for take-up roll products that can be packaged without causing looseness.

A surface wrapping machine for a take-up roll product according to a first aspect of the invention comprises two receiving rolls arranged in parallel for placing and rotating the take-up roll product. A surface wrapping machine that supplies a nip portion between a take-up roll product and a take-up roll product with the wrapping paper after being taken out from the nip portion between a receiving roll on the outlet side and the take-up roll product. A lifting device that lifts or lowers the take-up roll product from the receiving roll on the entry side, and the lifting device is installed above the supply line of the wrapping paper supplied to the nip portion. It is characterized by.
In a surface wrapping machine for a take-up roll product according to a second aspect of the present invention, in the first invention, the lifting device contacts a surface of the take-up roll product and is rotatable, and supports the lift roll in a swingable manner. And a working cylinder that swings the support link.

According to the first invention, when the take-up roll product is lifted by the lifting device and a gap is formed in the nip portion between the incoming-side receiving roll and the supplied wrapping paper, the outgoing-side receiving roll and the take-up roll product are It is sandwiched by the nip between the two and is wound around the bottom of the take-up roll product so as not to loosen. Next, when the lifting device lowers the take-up roll product, the take-up roll product is supported by the two incoming and outgoing receiving rolls, so if the take-up roll product is rotated by the two receiving rolls, the wrapping paper Is completed. And since the wrapping paper is not loosened in the first stage, it is finished in a loose packaging even after the packaging is completed.
According to the second invention, when the support link is swung by the working cylinder, the lifting roll can be swung, so that the take-up roll product can be lifted or lowered from the receiving roll on the entry side. Further, since the lifting roll is rotatable, it is possible to rotate the winding roll product while lifting the winding roll product, and in this case, the surface of the winding roll product is not damaged.

Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side view of a surface wrapping machine according to an embodiment of the present invention in a state where a lifting device is operated. FIG. 2 is a front view of the surface packaging machine of FIG. FIG. 3 is a side view of the surface packaging machine of FIG. 1 with the lifting device retracted.

1 and 2, the surface wrapping machine M has a machine base 1, two receiving rolls 2 and 3, and a motor 4 as in the prior art. This embodiment is characterized in Ri near point adding device 10 lifting, the lifting device 10, that is disposed above the supply line of the wrapping paper W supplied to the nip portion described later.
The lifting device 10 includes a lifting roll 11 that can rotate with respect to the surface of the take-up roll product R, a support link 12 that supports the lifting roll 11 in a swingable manner, and an operating cylinder that swings the support link 12. 13 The support link 12 supports both ends of the lifting roll 11.

In the lifting devices 10 and 12, when the operating cylinder 13 is extended, the support link 12 swings in the direction of arrow a, and the lifting roll 11 moves the take-up roll product R in the direction of arrow A, so that the receiving roll 2 on the entry side. Lift from. As a result, a gap is formed in the nip portion g between the receiving roll 2 and the take-up roll product R.
On the contrary, as shown in FIG. 3, when the working cylinder 13 is contracted, the support link 12 swings in the direction of the arrow b, and the lifting roll 11 is separated from the take-up roll product R. For this reason, the take-up roll product R is lowered in the direction of arrow B and is placed on the receiving roll 2.
During the above operation, the lifting roll 11 is rotatable, so that the take-up roll product R can be rotated while the take-up roll product R is being lifted. Does not damage the surface.

When the body is wound with the surface wrapping machine of the present embodiment, as shown in FIG. 1, the take-up roll product R is lifted by the lifting device 10 to create a gap at the nip portion g between the receiving roll 2 on the entrance side. The nip wrapping paper W that has been caught through the gap g is drawn is nipped portion of the outlet side of the receiving roll 3 and winding roll product R is guided by the guide plate 5. At this time, since the wrapping paper W on the entry side is not sandwiched, there is no resistance and sufficient tension is applied, so that it is wound along the bottom of the take-up roll product R so as not to be loosened. Next, when the lifting device 10 lowers the take-up roll product R, the take-up roll product R is supported by the two incoming and outgoing receiving rolls 2 and 3, so that it is wound by the two receiving rolls 2 and 3. When the roll product R is rotated, the wrapping paper W can be wound. Since the wrapping paper W is not loosened at the initial stage as described above, the packaging is finished without loosening even after the packaging is completed.
It is also possible to correct the state of the wrapping paper W by lifting the take-up roll product R again by the lifting device 10 before the leading edge of the wrapping paper W reaches the lifting roll 11.

It is a surface wrapping machine concerning one embodiment of the present invention, and is a side view in the state where a lifting device was operated. It is a front view of the surface packaging machine of FIG. It is a side view of the state which retracted the lifting apparatus in the surface packaging machine of FIG. It is explanatory drawing of the packaging process of a winding roll product. It is a side view of the conventional surface packaging machine. It is a front view of the conventional surface packaging machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Incoming side receiving roll 3 Outgoing side receiving roll 10 Lifting device 11 Lifting roll 12 Support link 13 Actuating cylinder

Claims (2)

Two receiving rolls arranged in parallel for loading and rotating the take-up roll product are provided, and the wrapping paper is supplied to the nip portion between the receiving roll on the input side and the take-up roll product, and is taken out. A surface wrapping machine that takes out from the nip portion between the receiving roll on the side and the take-up roll product and winds the take-up roll product with the wrapping paper,
It is equipped with a lifting device that lifts or lowers the take-up roll product from the receiving roll on the entry side ,
The surface wrapping machine for a take-up roll product , wherein the lifting device is installed above a supply line of the wrapping paper supplied to the nip portion . The lifting device comprises a lifting roll that can rotate in contact with the surface of the take-up roll product, a support link that swingably supports the lifting roll, and an operating cylinder that swings the support link. 2. A surface wrapping machine for a take-up roll product according to claim 1.

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