Embossing roll guard

Abstract

The embossing roller protection device comprises two embossing rollers close to each other, paper passes through the nip of the two embossing rollers, a magnet is arranged at the paper inlet side of the nip, the magnet is arranged along the width of the paper, and the magnet is close to the paper so as to be able to adsorb ferromagnetic foreign matters on the paper. The embossing roller protection device has the advantages that iron filings on the paper can be removed in time before the paper enters the nip of the embossing rollers, and damage of the embossing rollers caused by the iron filings is avoided.

Description

Technical Field

[0001] This utility model relates to embossing equipment for rolling patterns onto paper, and more particularly to embossing rollers in such equipment. Background Technology

[0002] In the production of paper or tissue paper, embossing equipment is often used to roll patterns onto the paper. Embossing equipment mainly consists of two embossing rollers close together. As the paper passes through the gap between the two rollers, the embossing rollers press patterns onto the paper. Existing embossing equipment provides insufficient protection for the embossing rollers. If a component of an upstream device detaches iron filings during high-speed operation and they fall onto the paper (although the probability is small), the embossing roller will crush these filings, causing irreversible damage to the patterns on the roller surface. If the iron filings are even slightly large, the entire embossing roller may have to be disassembled and re-engraved for repair, severely impacting production schedules. Utility Model Content

[0003] The purpose of this invention is to provide a protective device for embossing rollers to prevent iron filings falling onto the paper from damaging the embossing rollers.

[0004] This invention is implemented as follows: the embossing roller protection device includes two embossing rollers close to each other, and the paper passes through the gap between the two embossing rollers. In particular, a magnet is provided on the paper feed side of the gap, and the magnets are arranged along the width of the paper. The magnets are close to the paper so that they can attract ferromagnetic foreign objects on the paper surface.

[0005] In a preferred embodiment, a crossbar is provided on the paper feed side of the roller gap, and the magnet is fixed on the crossbar.

[0006] The advantage of this invention is that iron filings on the paper are removed by magnets before the paper enters the gap of the embossing roller, thus avoiding damage to the embossing roller caused by the iron filings. Attached Figure Description

[0007] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0008] Figure 2 This is a structural schematic diagram of Embodiment 2 of this utility model. Detailed Implementation

[0009] To facilitate understanding of this utility model, the following embodiments provide a more comprehensive description of the present utility model. The embodiments illustrate implementation methods of the present utility model. However, the present utility model can be implemented in many different forms and is not limited to the implementation methods described in the embodiments.

[0010] See Figure 1The embossing roller protection device includes two embossing rollers 1 close to each other, through which a continuous sheet of paper 2 passes. At least one embossing roller 1 has a raised pattern on its surface, while the other embossing roller 1 may have either a raised pattern or a smooth surface. Embossing rollers 1 with raised patterns are also known in the industry as "pattern rollers." Embossing rollers 1 with smooth surfaces are also known in the industry as "embossing base rollers" or "base rollers." When the paper 2 passes through the gap between the two embossing rollers 1, the embossing rollers 1 press patterns onto the paper. If the paper 2 has multiple layers, the patterns pressed onto the paper also serve to bond the multiple layers together, making them a single composite.

[0011] See Figure 1 Magnets 3 are provided on the paper feed side of the gap between the two embossing rollers 1. The magnets 3 are arranged along the width of the paper 2 (i.e., along a direction perpendicular to the paper plane), such that the attraction range of the magnets 3 covers the entire width of the paper 2. The magnets 3 are close enough to the paper 2 that they can attract ferromagnetic foreign objects on the paper surface. Ideally, the magnets 3 should be strong permanent magnets, but electromagnets can also be used as an alternative.

[0012] For the best implementation, see Figure 1 A crossbar 4 is provided near the paper feed side of the roller gap, and a magnet 3 is fixed to the crossbar 4 (the length of the crossbar is perpendicular to the paper plane). In this way, not only can the magnet 3 fixed to the crossbar 4 remove ferromagnetic foreign objects from the paper surface, but the crossbar 4 can also prevent other foreign objects (such as human hands) from approaching the roller gap of the embossing roller 1, providing more comprehensive protection. The magnet 3 can be fixed to the crossbar 4 with screws or adhesive. The crossbar 4 can be directly fixed to the frame of the equipment.

[0013] For easier adjustment of the distance between the crossbar 4 and the roller gap, please refer to... Figure 1 The crossbar 4 is fixed with a hanging ear 5, which has an elongated through hole 6. A bolt 7 passes through the elongated through hole 6 to fix the hanging ear 5 to the frame. By simply loosening the bolt 7, the distance between the crossbar 4 and the roller gap can be adjusted back and forth along the direction of the elongated through hole 6.

[0014] As another implementation method, see Figure 2 In this embodiment Figure 1 The number of horizontal bars has been increased on top of the existing design. Two or more horizontal bars 4 are arranged along the direction of paper material 2, and each horizontal bar 4 is fixed with a magnet 3 close to the paper material. This greatly increases the probability of the magnet attracting iron filings.

[0015] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection of this patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the scope of protection of this utility model. Therefore, the scope of protection of this utility model patent should be determined by the appended claims.

Claims

1. An embossing roll protection device, comprising two embossing rolls close to each other, through which paper passes in the gap between the two embossing rolls, characterized in that: Magnets are provided on the paper feed side of the roller gap. The magnets are arranged along the width of the paper and are close to the paper so that they can attract ferromagnetic foreign objects on the paper surface.

2. The embossing roller protection device as described in claim 1, characterized in that: The paper feed side of the roller gap is provided with a crossbar near the roller gap, and the magnet is fixed on the crossbar.

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