Non-glue tail sealing device for roll

Abstract

The invention discloses a non-glue tail sealing device for a roll. The non-glue tail sealing device comprises tail sealing mechanisms and extrusion devices, and the tail sealing mechanisms and the extrusion devices are opposite in an up-down mode. The multiple sets of tail sealing mechanisms are axially arranged along the roll. Each set of tail sealing mechanism comprises a first clamping die, a second clamping die and a driving unit. Each driving unit drives the corresponding first clamping die and the corresponding second clamping die to move oppositely so that the first clamping die and the second clamping die can be opened and closed to each other. Each extrusion device is used for extruding the roll between an opening of the corresponding first clamping die and an opening of the corresponding second clamping die, so that a clamping nozzle of the first clamping die and a clamping nozzle of the second clamping die are embedded into the outer circumferential surface of the roll, and a pressing part is formed on the outer circumferential surface of the roll by closing the first clamping die and the second clamping die.

Description

technical field [0001] The present invention relates to the production and processing equipment of roll materials, more specifically to the technical field of production and processing equipment of toilet paper rolls, and in particular to a roll-roll glueless tail sealing device. Background technique [0002] The reel is a roll-shaped material formed by winding the web-shaped material, and the common forms are toilet paper rolls, plastic rolls, etc. Taking the toilet paper roll as an example, in order to maintain the stability of the roll during packaging, transportation, etc., the existing roll needs to be sealed at the tail end of the roll so that it will not fall apart. The existing reel will be sealed with glue at the end after winding to maintain the stability of the reel. The sealing method with glue has the following three disadvantages: First, the reel must be glued before use. The process of tearing the tail will destroy the outer ring of the reel that is bonded to...

AI Technical Summary

Problems solved by technology

The existing reel will be sealed with glue at the end after winding to maintain the stability of the reel. The sealing method with glue has the following three disadvantages: First, the reel must be glued before use. The process of tearing the tail will destroy the outer ring of the reel that is bonded to the tail end, so that part of the tail end cannot be used normally; second, because the glue has a certain permeability, it tends to stick to the inner paper in some cases. The user needs to tear off multiple layers before using it, which not only wastes materials, but also is inconvenient to operate; thirdly, a large amount of glue is used in the existing reel end sealing, which not only needs to increase additional material costs, but also glue is a It is a kind of chemical synthetic material, which has certain harmful components and is volatile. It will have a negative impact on the health of workers or users, whether in the production process or in use, and the use of a large amount of glue is not conducive to environmental protection.

However, the applicant only discloses its processing method in this patent, and does not disclose the specific equipment for realizing the method.

Although the patent applications with publication numbers CN101674993A and CN104755400A disclose mechanical means to form folds, they are inefficient and cannot form a tail seal at the end of the reel at one time

In addition, in the follow-up implementation process, the applicant found that the prior art still has the following deficiencies: when the tail end of the reel forms a press-fitting portion through the action of closing the die, due to the small contact area between the die and the reel, It will increase the difficulty of forming the pressing part. Even if the pressing part can be formed, the number of pressing layers is relatively small, which is not conducive to improving the stability of the tail seal; in order to ensure that the paper tail part of the reel can be pressed evenly, The clamping mold used must have high precision. However, in order to match the larger width of the reel, the clamping mold must also have a larger width, which will easily lead to flexible deformation of the clamping mold and affect the precision of the clamping mold. Then affect the sealing effect and the reliability of the sealing process

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