CN220099522U - High-line-pressure-resistant papermaking felt and papermaking machine - Google Patents

Abstract

The utility model provides a high-line pressure resistant papermaking felt and a papermaking machine, wherein the papermaking felt comprises: the first fiber layer, the base cloth layer and the second fiber layer that range upon range of setting in proper order, the base cloth layer is including the first base cloth layer and the second base cloth layer of range upon range of setting, first base cloth layer is located in the middle of first fiber layer and the second base cloth layer, first base cloth layer is including the first warp and the first weft of alternately setting, the contained angle of first warp and first weft is 60 ~ 80, the second base cloth layer is including the second warp and the second weft of alternately setting, the contained angle of second warp and second weft is the same with the contained angle of first warp and first weft, the contained angle of first warp and second warp is 5 ~ 20. The papermaking felt disclosed by the utility model can quickly discharge moisture when pressing paper, and has higher high-pressure-resistant linear pressure capability.

Description

High-line-pressure-resistant papermaking felt and papermaking machine

Technical Field

The utility model relates to the technical field of paper industry, in particular to a high-line-pressure-resistant papermaking felt and a papermaking machine.

Background

The papermaking felt is used as an indispensable dehydration material in the papermaking industry and plays roles of dehydrating, supporting paper and decorating the surface of the paper. When the paper machine is operated, the paper blanket is repeatedly extruded in the press area, so that the paper blanket not only needs to have excellent dewatering performance, but also has the characteristics of high strength, good flatness, good compression rebound resilience, good dimensional stability and the like.

In the prior art, because the warp yarns and the weft yarns of the base fabric layer are generally arranged vertically, that is, the weft yarns are vertical relative to the warp yarns, the arrangement mode ensures that the papermaking felt is not easy to discharge water when the paper is pressed.

Disclosure of Invention

The utility model provides a high-line pressure resistant papermaking felt and a papermaking machine, which are used for solving the technical problem that the papermaking felt is not easy to discharge water when the paper is pressed by the papermaking felt in the prior art.

To solve the above technical problems, in one aspect, the present utility model provides a high-line pressure resistant papermaking felt, specifically, the papermaking felt includes: the first fiber layer, the base cloth layer and the second fiber layer that range upon range of setting in proper order, the base cloth layer is including the first base cloth layer and the second base cloth layer of range upon range of setting, first base cloth layer is located in the middle of first fiber layer and the second base cloth layer, first base cloth layer is including the first warp and the first weft of alternately setting, the contained angle of first warp and first weft is 60 ~ 80, the second base cloth layer is including the second warp and the second weft of alternately setting, the contained angle of second warp and second weft is the same with the contained angle of first warp and first weft, the contained angle of first warp and second warp is 5 ~ 20.

Further, the included angle between the first warp yarn and the first weft yarn is 65 degrees to 75 degrees.

Further, a filter screen layer is arranged between the second base cloth layer and the second fiber layer.

Further, the filter screen layer is adhered to or embedded in one side of the second base cloth layer close to the second fiber layer.

Further, a first binding rope is arranged at the contact position of the first warp and the first weft, and a second binding rope is arranged at the contact position of the second warp and the second weft.

Further, the first binding rope and the second binding rope are identical in structure.

Further, the first binding rope and the second binding rope are made of water-soluble fibers.

Further, the first warp yarn and the second warp yarn have the same structure, and the first weft yarn and the second weft yarn have the same structure.

Further, a mildew-proof layer is arranged on one side of the second fiber layer far away from the second base cloth layer.

To solve the above technical problem, another aspect of the present utility model provides a paper machine comprising a papermaking felt according to any one of the embodiments described above.

The embodiment of the utility model has the beneficial effects that: compared with the prior art, the utility model provides a high-line-pressure-resistant papermaking felt, which comprises a first fiber layer, a base cloth layer and a second fiber layer which are sequentially stacked, wherein the base cloth layer comprises a first base cloth layer and a second base cloth layer which are stacked, the first base cloth layer comprises first warps and first wefts which are arranged in a crossed manner, the second base cloth layer comprises second warps and second wefts which are arranged in a crossed manner, wherein the included angle between the first warps and the first wefts is 60-80 degrees, the included angle between the second warps and the second wefts is the same as the included angle between the first warps and the first wefts, and the included angle between the first warps and the second warps is 5-20 degrees. The papermaking felt disclosed by the utility model can quickly discharge moisture when pressing paper, and has higher high-pressure-resistant linear pressure capability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of one embodiment of a high line pressure resistant papermaking felt provided by the present utility model;

FIG. 2 is a schematic diagram of an embodiment of the first base fabric layer of FIG. 1;

FIG. 3 is a schematic illustration of another embodiment of a high line pressure resistant papermaking felt provided by the present utility model.

Detailed Description

The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The present utility model firstly provides a high-line pressure resistant papermaking felt (hereinafter referred to as papermaking felt), referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the high-line pressure resistant papermaking felt provided by the present utility model, specifically, the papermaking felt 10 includes a first fiber layer 11, a base fabric layer 12 and a second fiber layer 13 stacked in sequence, the base fabric layer 12 includes a first base fabric layer 121 and a second base fabric layer 122 stacked, and the first base fabric layer 121 is located between the second base fabric layer 122 and the first fiber layer 11.

Further, as shown in fig. 2, fig. 2 is a schematic structural view of an embodiment of the first base fabric layer in fig. 1, where the first base fabric layer 121 includes first warp yarns 101 and first weft yarns 102 that are disposed in a crossing manner. The second base fabric layer 122 includes second warp yarns and second weft yarns disposed in a crossing manner. The papermaking felt 10 of the present utility model adopts a two-layer base fabric structure to make the compression rebound resilience higher, and in the use process, the elasticity is not lost quickly, and the phenomena of compaction and hardening are not easy to occur.

The first base fabric layer 121 and the second base fabric layer 122 may have the same structure, that is, the first warp yarn 101 and the second warp yarn have the same structure, and the first weft yarn 102 and the second weft yarn have the same structure. The present utility model will be described in detail with reference to the first base fabric layer 121 as an example. In this way, the consistency of the material can be improved and the manufacturing process of the papermaking felt 10 simplified.

Further, as shown in fig. 2, the included angle between the first warp yarn 101 and the first weft yarn 102 is 60 ° -80 °, for example, the included angle between the first warp yarn 101 and the first weft yarn 102 may be 60 °, 75 ° or 80 °. Preferably, the angle between the first warp yarn 101 and the first weft yarn 102 may be 65 ° -75 °.

Further, the angle between the second warp yarn and the second weft yarn is the same as the angle between the first warp yarn 101 and the first weft yarn 102.

In the base fabric layer 12 of the present utility model, the warp and weft are not vertically arranged, i.e., the warp and weft are obliquely crossed, in such a manner that water in the paper sheet can be discharged along the first and second obliquely-arranged weft threads 102, thereby improving the drainage efficiency of the papermaking felt 10.

Further, the first warp yarn 101 and the second warp yarn have an angle of 5 ° -20 °. That is, the warp and weft in the first and second base fabric layers 121 and 122 do not overlap, and in this way, it is possible to effectively prevent collapse.

The papermaking felt 10 provided by the utility model has the advantages of simple structure, good drainage effect and higher high-pressure-resistant linear pressure capability.

Further, as shown in fig. 2, a first binding rope 103 is provided at a contact position of the first warp yarn 101 and the first weft yarn 102, and a second binding rope is provided at a contact position of the second warp yarn and the second weft yarn. The first binding rope and the second binding rope have the same structure. The materials of the first binding rope and the second binding rope may be the same, and in this way, the kinds of materials can be reduced, and the manufacturing process of the papermaking felt 10 can be simplified.

Further, the first binding string 103 and the second binding string are made of water-soluble fiber. The water-soluble fiber is a valuable functional differential fiber, and is applied to papermaking, medical non-woven fabrics and the like. Specifically, the first binding string 103 and the second binding string may be made of polyvinyl alcohol fiber.

In the above-described embodiment, the generation of the shearing force between the first warp yarn 101 and the first weft yarn 102, and between the second warp yarn and the second weft yarn can be prevented by providing the binding ropes, thereby improving the service life of the papermaking felt 10.

Referring further to fig. 1, optionally, a filter layer 14 may be disposed between the second base fabric layer 122 and the second fiber layer 13. The filter screen layer 14 is adhered to or embedded in the second base fabric layer 122 near the second fiber layer 13, and the filter screen layer 14 is used for filtering out water, so as to improve the environmental protection performance of the papermaking felt 10.

As shown in fig. 3, fig. 3 is a schematic structural diagram of another embodiment of a high-line-pressure-resistant papermaking felt according to the present utility model, specifically, in this embodiment, the papermaking felt 10 may further include a mildew-proof layer 15, where the mildew-proof layer 15 may be disposed on a side of the second fiber layer 13 away from the second base fabric layer 122. The mildew-proof layer 15 can improve the mildew resistance of the papermaking felt 10, avoid the felt hardening caused by long-time water passing, influence the use of the papermaking felt 10 and prolong the service life of the papermaking felt 10.

The present utility model also provides a papermaking machine comprising the papermaking felt 10 of any one of the embodiments described above. The structure of the papermaking felt 10 is described in any of the above embodiments, and will not be described in detail herein.

It should be understood that although the present disclosure describes embodiments in terms of examples, not every embodiment is provided with a single embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art. The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and is not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.

Claims (9)

1. A high line pressure resistant papermaking felt, said papermaking felt comprising: the first fiber layer, the base cloth layer and the second fiber layer are sequentially laminated, the base cloth layer comprises a first base cloth layer and a second base cloth layer which are laminated, the first base cloth layer is positioned between the first fiber layer and the second base cloth layer,

the first base cloth layer comprises first warps and first wefts which are arranged in a crossing way, the included angle between the first warps and the first wefts is 60-80 degrees,

the second base cloth layer comprises a second warp and a second weft which are arranged in a crossing way, the included angle between the second warp and the second weft is the same as the included angle between the first warp and the first weft,

the included angle between the first warp yarn and the second warp yarn is 5-20 degrees,

wherein, the second base cloth layer with be provided with the filter screen layer between the second fibrous layer.

2. The papermaking felt according to claim 1, wherein the first warp and the first weft have an included angle of 65 ° to 75 °.

3. The papermaking felt according to claim 1, wherein the screen layer is bonded or embedded on a side of the second base fabric layer adjacent to the second fiber layer.

4. The papermaking felt according to claim 1, wherein a first binding rope is provided at a contact position of the first warp and the first weft, and a second binding rope is provided at a contact position of the second warp and the second weft.

5. The papermaking felt according to claim 4, wherein the first binding cords and the second binding cords are identical in structure.

6. The papermaking felt according to claim 5, wherein the material of the first binding string and the second binding string is water-soluble fiber.

7. The papermaking felt according to claim 1, wherein the first warp and the second warp are identical in structure and the first weft and the second weft are identical in structure.

8. The papermaking felt according to claim 1, wherein the side of the second fiber layer remote from the second base fabric layer is provided with a mildew-resistant layer.

9. A paper machine comprising a papermaking felt according to any one of claims 1-8.