Protection mechanism for forming net of lab sheet making device

Abstract

The utility model discloses a protection mechanism for a forming net of a sheet making device in a laboratory, which comprises a sheet forming device, the protection mechanism is arranged in the sheet forming device, the protection mechanism comprises a mounting frame, the mounting frame is fixed on the inner wall of the sheet forming device, the inner side of the mounting frame is provided with a protection net, and the mounting frame is provided with a forming net; the forming net is simple in structure and novel in design, the special protection mechanism is used for supporting and protecting the forming net, and meanwhile, the mesh number of the protection net is designed to be 60-80 meshes, so that slurry dehydration cannot be hindered.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet-making machines, in particular to a protection mechanism for a forming wire of a laboratory sheet-making machine. Background Technique

[0002] In laboratories, sheet-making machines are commonly used for paper making. The sheet-making machine mainly consists of a paper sheet former, a transfer device, one or more dryers and accessories.

[0003] The paper sheet former also includes a forming wire, which is one of the main components and the main medium for the dewatering and forming of the pulp, playing a key role in the quality of the hand sheet. Only by passing through the forming wire can the diluted pulp make a wet paper web, and then part of the water is squeezed out by the couch roll, and then dried to become a hand sheet.

[0004] The above-mentioned forming wire itself has low hardness. Due to the small diameter of the nickel wire and its own ductility, during use, scratches or creases are likely to appear on the wire surface due to the squeezing of the couch roll or the transfer of the wet paper web. Especially after the wire has been used for a period of time and its tension has decreased, slight contact will cause scratches. If the forming wire with scratches is used for filtering and forming the pulp, it will cause uneven forming of the pulp or obvious marks and creases on the wet paper web, ultimately affecting the physical properties of the hand sheet.

[0005] In addition, the high price of the nickel wire itself, combined with the manufacturing process requirements of the forming wire, results in a very high price for this forming wire, generally reaching 300 - 500 yuan per sheet, with each sheet sized 30 * 30 cm, leading to an increase in experimental costs. Therefore, it is necessary to design a mechanism that can be used to protect the forming wire to reduce losses. Summary of the Invention

[0006] The purpose of the utility model is to provide a protection mechanism for a forming wire of a laboratory sheet-making machine to solve the problems mentioned in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A protection mechanism for a forming wire of a laboratory sheet-making machine, including a paper sheet former. A protection mechanism is installed inside the paper sheet former. The protection mechanism includes a mounting frame, the mounting frame is fixed on the inner wall of the paper sheet former, a protective net is arranged inside the mounting frame, and a forming wire is installed on the mounting frame.

[0008] Preferably, the mounting frame is of a circular structure. A limiting edge extends downward from the inner wall of the mounting frame. The limiting edge has magnetism. The protective net is magnetically attracted inside the mounting frame. A plurality of first mounting holes are arranged on the edge of the upper surface of the mounting frame. The forming wire is installed on the mounting frame. The protective net is located below the forming wire to support the forming wire.

[0009] Preferably, the protective net is made of stainless steel and has a mesh number of 60 - 80 meshes.

[0010] Preferably, an outer ring is provided at the edge of the forming net, and a plurality of second mounting holes are provided on the outer ring. After the forming net is installed on the mounting frame, the first mounting holes and the second mounting holes correspond to each other, and the first mounting holes and the second mounting holes are fixed by screws.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The structure of the present utility model is simple and novel. The special protection mechanism is used to support and protect the forming net, and at the same time, the mesh number of the protective net is designed so that the pores of 60 - 80 meshes will not hinder the dewatering of the slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is a schematic sectional view of the structure of the present utility model;

[0014] Figure 3 is a schematic diagram of the connection structure between the protection mechanism and the forming net of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figures 1-3 , the present utility model provides a technical solution: A protection mechanism for a forming net of a laboratory sheet former, including a paper sheet former 1, a protection mechanism 2 is arranged inside the paper sheet former 1, and a forming net 3 is installed on the protection mechanism 2;

[0017] The above protection mechanism 2 includes a mounting frame 21, the mounting frame 21 is of a ring structure, a limiting edge 211 extends downward from the inner wall of the mounting frame 21, and the limiting edge 211 is magnetic. In addition, a plurality of first mounting holes 212 are opened at the edge of the upper surface of the mounting frame 21;

[0018] The specific installation method is as follows: First, the mounting frame 21 is fixed on the inner wall of the paper sheet former 1, and then the protective net 22 is installed on the inner side of the mounting frame 21, so that the protective net 22 is magnetically attracted inside the mounting frame.

[0019] Then, the forming wire 3 is installed on the mounting bracket 21. Since an outer ring 31 is provided at the edge of the forming wire 3, and a plurality of second mounting holes 311 are provided on the outer ring 31. After the forming wire 3 is installed on the mounting bracket 21, the first mounting holes 212 and the second mounting holes 311 correspond to each other, and then the first mounting holes 212 and the second mounting holes 311 are fixed by screws 312, so as to install the forming wire on the protection mechanism;

[0020] After successful installation, at this time, the protective net 22 is located below the forming wire 3, and can support and protect the forming wire.

[0021] In this embodiment, the protective net 22 is made of stainless steel, and the mesh number of the protective net 22 is 60 - 80 meshes, so that the pores will not hinder the dewatering of the slurry.

[0022] In summary, the special protection mechanism is adopted to support and protect the forming wire, and at the same time, the mesh number of the protective net is designed so that the pores of 60 - 80 meshes will not hinder the dewatering of the slurry.

[0023] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protection mechanism for the forming wire of a laboratory sheet former, characterized in that: The protection mechanism (2) includes a mounting frame (21), the mounting frame (21) is fixed to the inner wall of the paper former (1), a protective net (22) is provided inside the mounting frame (21), and a forming net (3) is mounted on the mounting frame (21); The mounting frame (21) is of an annular structure, a limiting edge (211) extends downward from the inner wall of the mounting frame (21), the limiting edge (211) has magnetism, the protective net (22) is magnetically attracted inside the mounting frame, a plurality of first mounting holes (212) are provided at the edge of the upper surface of the mounting frame (21), the forming net (3) is mounted on the mounting frame (21), and the protective net (22) is located below the forming net (3) to support the forming net.

2. The protection mechanism for the forming wire of a laboratory sheet former according to claim 1, characterized in that: The protective net (22) is made of stainless steel, and the mesh number of the protective net (22) is 60 - 80 mesh.

3. The protection mechanism for the forming wire of a laboratory sheet former according to claim 2, characterized in that: An outer ring (31) is provided at the edge of the forming net (3), a plurality of second mounting holes (311) are provided on the outer ring (31), after the forming net (3) is mounted on the mounting frame (21), the first mounting holes (212) and the second mounting holes (311) correspond to each other, and the first mounting holes (212) and the second mounting holes (311) are fixed by screws (312).

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