Vacuum roller structure of a paper machine

Abstract

This utility model discloses a vacuum roller structure for a papermaking machine, comprising a base, a second fixed block fixedly connected to the top of the base, a second motor fixedly connected to the outside of the second fixed block, a second drive rod rotatably connected to the output end of the second motor, and a gear fixedly connected to the outside of the second drive rod. With this structure, paper is placed on a conveyor belt, and driven by the second motor and the second drive rod, the external gear rotates. The gear drives the external rack to move, thereby the racks at the upper and lower ends drive the external first and second sliding blocks to move. This causes the first and second sliding blocks to move the external clamping rod, flattening the paper. This evenly absorbs the paper, counteracting the curling and wrinkling tendencies caused by uneven tension, humidity changes, or the paper's own weight during transport, ensuring the paper remains flat during drying, pressing, and other processes.

Description

Technical Field

[0001] This utility model relates to the field of vacuum idler technology, and in particular to the structure of vacuum idlers for papermaking machines. Background Technology

[0002] Vacuum rollers in papermaking machines are key equipment used for dewatering, supporting, and transferring wet paper sheets in papermaking production. They are mainly used in the wet section of papermaking machines, such as the press section and wire section. Their core principle is to use vacuum suction to enhance the dewatering efficiency of wet paper sheets and to stably support the paper sheets to prevent breakage or wrinkling.

[0003] In existing technologies, moisture is actively extracted from wet paper sheets using vacuum suction to supplement the dehydration effect of the wire or press section. This is particularly suitable for high basis weight paper or fiber raw materials that are difficult to dehydrate, and can reduce energy consumption in subsequent drying processes. However, in some devices, the paper is prone to local stacking, wrinkling, or even forming creases that are difficult to eliminate during the conveying process. These defects can lead to uneven stress on the paper in subsequent processing, affecting the appearance and performance of the finished product. Utility Model Content

[0004] The purpose of this invention is to uniformly absorb paper, counteracting the curling and wrinkling tendencies caused by uneven tension, humidity changes, or the paper's own weight during transport. This ensures the paper remains flat during drying and pressing processes, providing a vacuum roller structure for papermaking machines. It solves the problem of uneven paper thickness in the longitudinal or transverse directions caused by localized thickening due to stacking and excessive thinning in other areas. Furthermore, uneven fiber distribution can lead to basis weight fluctuations exceeding quality standards.

[0005] This utility model also provides a vacuum roller structure for the above-mentioned papermaking machine, including a base, a second fixing block fixedly connected to the top of the base, a second motor fixedly connected to the outside of the second fixing block, a second drive rod rotatably connected to the output end of the second motor, and a gear fixedly connected to the outside of the second drive rod.

[0006] According to the vacuum roller structure of the papermaking machine described in this utility model, the gear is externally meshed with two racks, and a first sliding block is fixedly connected to the outside of the racks.

[0007] According to the vacuum roller structure of the papermaking machine described in this utility model, a second sliding block is fixedly connected to the outside of the rack, and a clamping rod is fixedly connected to the outside of the second sliding block.

[0008] According to the vacuum roller structure of the papermaking machine described in this utility model, a first fixing block is fixedly connected to the top of the base, and a first driving rod is rotatably connected inside the first fixing block.

[0009] According to the vacuum roller structure of the papermaking machine described in this utility model, the output end of the first drive rod is fixedly connected to a first motor, and a conveyor belt is rotatably connected to the outside of the first drive rod.

[0010] According to the vacuum roller structure of the papermaking machine described in this utility model, the base is fixedly connected to the outside of the outer shell.

[0011] According to the vacuum roller structure of the papermaking machine described in this utility model, a plurality of rotating rods are rotatably connected inside the outer shell.

[0012] According to the vacuum roller structure of the papermaking machine described in this utility model, a roller is fixedly connected to the outside of the rotating rod, and multiple air outlet holes are opened inside the roller.

[0013] Beneficial effects:

[0014] 1. The vacuum roller structure of the paper machine in this technical solution places the paper on the conveyor belt, and the second motor drives the second drive rod to drive the external gear to rotate. The gear drives the external rack to move, and the rack at the upper and lower ends drives the external first sliding block and second sliding block to move. The first sliding block and second sliding block drive the external clamping rod to move and flatten the paper. This can evenly absorb the paper and counteract the tendency of the paper to curl or wrinkle during the transmission process due to uneven tension, humidity changes or its own weight, so as to ensure that the paper remains flat in the drying, pressing and other processes.

[0015] 2. After the paper is laid flat, the first motor drives the first drive rod to rotate the conveyor belt, which then transports the paper to the roller inside the outer shell for winding. There are multiple air vents inside the roller to drain the moisture from the paper. After the roller has finished winding the paper, the roller is pulled out along the groove inside the outer shell by the rotating rod, and a new roller is installed. This allows for quick replacement of rollers of different specifications, such as replacing rollers with grooved rollers to adapt to the adsorption requirements of specific papers, or upgrading the roller material, such as using a wear-resistant ceramic coating to extend its service life, making the equipment more flexible to adapt to production process adjustments. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a structural diagram of the vacuum roller structure of the papermaking machine of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the second motor in the vacuum roller structure of the paper machine proposed in this utility model.

[0019] Figure 3This is a schematic diagram of the clamping rod of the vacuum roller structure of the papermaking machine proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the air outlet of the vacuum roller structure of the papermaking machine proposed in this utility model.

[0021] Legend:

[0022] 1. Base; 2. Outer shell; 3. First fixing block; 4. First drive rod; 5. First motor; 6. Second fixing block; 7. Conveyor belt; 8. Second motor; 9. Second drive rod; 10. Gear; 11. Rack; 12. First sliding block; 13. Clamping rod; 14. Second sliding block; 15. Rotating rod; 16. Roller; 17. Air outlet. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-4 The vacuum roller structure of the paper machine according to the present invention includes a base 1, a second fixing block 6 fixedly connected to the top of the base 1, a second motor 8 fixedly connected to the outside of the second fixing block 6, a second drive rod 9 rotatably connected to the output end of the second motor 8, and a gear 10 fixedly connected to the outside of the second drive rod 9.

[0025] Specifically, the external gear 10 is rotated by the second motor 8 in conjunction with the second drive rod 9.

[0026] The gear 10 has two racks 11 externally meshing with each other, and a first sliding block 12 is fixedly connected to the outside of each rack 11.

[0027] The rack 11 is externally fixedly connected to a second sliding block 14, and the second sliding block 14 is externally fixedly connected to a clamping rod 13.

[0028] Specifically, the gear 10 drives the external rack 11 to move, thereby the rack 11 at both ends drives the external first sliding block 12 and second sliding block 14 to move, which in turn drives the external clamping rod 13 to move, thus flattening the paper.

[0029] The top of the base 1 is fixedly connected to a first fixing block 3, and the inside of the first fixing block 3 is rotatably connected to a first drive rod 4.

[0030] The output end of the first drive rod 4 is fixedly connected to the first motor 5, and the outside of the first drive rod 4 is rotatably connected to the conveyor belt 7.

[0031] Specifically, the first motor 5 drives the first drive rod 4 to rotate the conveyor belt 7.

[0032] The base 1 is externally fixedly connected to the outer shell 2.

[0033] Multiple rotating rods 15 are rotatably connected inside the outer casing 2.

[0034] A roller 16 is fixedly connected to the outside of the rotating rod 15, and multiple air vents 17 are opened inside the roller 16.

[0035] Specifically, driven by the first motor 5 and the first drive rod 4, the conveyor belt 7 is rotated to transport the paper to the roller 16 inside the outer casing 2 for winding. There are multiple air vents 17 inside the roller 16 to drain the moisture from the paper. After the roller 16 has wound up the paper, the roller 16 is pulled out along the groove inside the outer casing 2 by the rotating rod 15, and a new roller 16 is installed.

[0036] Working principle: Paper is placed on conveyor belt 7, and driven by second motor 8 and second drive rod 9, external gear 10 rotates. Gear 10 drives external rack 11 to move, thereby moving the upper and lower ends of rack 11, which in turn moves external first sliding block 12 and second sliding block 14. This causes the first sliding block 12 and second sliding block 14 to move external clamping rod 13, flattening the paper. This evenly absorbs the paper and counteracts the curling and wrinkling tendencies caused by uneven tension, humidity changes, or the paper's own weight during transport, ensuring that the paper remains flat during drying and pressing processes. After the paper is flattened, it is then transported through... Driven by the first motor 5 and the first drive rod 4, the conveyor belt 7 rotates, conveying the paper to the roller 16 inside the outer casing 2 for winding. There are multiple air vents 17 inside the roller 16 to drain the moisture from the paper. After the roller 16 has wound up the paper, the roller 16 is pulled out along the groove inside the outer casing 2 by the rotating rod 15, and a new roller 16 is installed. This allows for quick replacement of rollers 16 of different specifications, such as replacing rollers 16 with grooved rollers to adapt to the adsorption requirements of specific papers, or upgrading the roller material, such as using a wear-resistant ceramic coating to extend the service life, making the equipment more flexible to adapt to production process adjustments.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A vacuum shoe structure for a paper machine comprising a base (1), characterised in that: The top of the base (1) is fixedly connected to a second fixing block (6), the outside of the second fixing block (6) is fixedly connected to a second motor (8), the output end of the second motor (8) is rotatably connected to a second drive rod (9), and the outside of the second drive rod (9) is fixedly connected to a gear (10).

2. The vacuum roll structure of a papermaking machine according to claim 1, characterized in that, The gear (10) is externally meshed with two racks (11), and a first sliding block (12) is fixedly connected to the outside of the racks (11).

3. The vacuum roll structure of a paper machine according to claim 2, characterized in that, The rack (11) is externally fixedly connected to a second sliding block (14), and the second sliding block (14) is externally fixedly connected to a clamping rod (13).

4. The vacuum roll structure of a papermaking machine according to claim 1, characterized in that, The top of the base (1) is fixedly connected to a first fixing block (3), and the inside of the first fixing block (3) is rotatably connected to a first drive rod (4).

5. The vacuum roll structure of a papermaking machine according to claim 4, characterized in that, The output end of the first drive rod (4) is fixedly connected to the first motor (5), and the outside of the first drive rod (4) is rotatably connected to the conveyor belt (7).

6. The vacuum roll structure of a papermaking machine according to claim 1, characterized in that, The base (1) is externally fixedly connected to a shell (2).

7. The vacuum roll structure of a papermaking machine according to claim 6, characterized in that, The outer casing (2) is rotatably connected to a plurality of rotating rods (15).

8. The vacuum roll structure of a papermaking machine according to claim 7, characterized in that, The rotating rod (15) is fixedly connected to a roller (16), and the roller (16) has multiple air vents (17) inside.

Images