Vacuum press roll with high dehydration rate

Abstract

The utility model discloses a vacuum press roll with a high dehydration rate, which comprises a vacuum press roll body, an inner cavity is arranged inside the vacuum press roll body, a through hole is arranged at one end of the vacuum press roll body, a groove is arranged on the outer side of the vacuum press roll body, a water absorption hole is arranged on the inner side of the groove, and the water absorption hole is communicated with the inner cavity. The high-dehydration-rate vacuum press roll is provided with the baffles and the wear-resistant rubber sheets, the baffles and the wear-resistant rubber sheets are both designed to be of arc-shaped structures, and under the action of the air suction pipe, the fixing plate, the circular plate, the supporting rod, the fixing rod and the supporting frame, the baffles and the wear-resistant rubber sheets can be fixed; the baffle and the wear-resistant rubber sheet can block all the water absorption holes except the water absorption holes in the bottom of the vacuum press roll body, so that the suction force of the water absorption holes in the bottom of the vacuum press roll body is improved, and the dehydration efficiency of the vacuum press roll body on paper is improved.

Description

Technical Field

[0001] This utility model relates to the field of vacuum press roller technology, specifically a high dehydration rate vacuum press roller. Background Technology

[0002] Press rolls are the main components of the pressing device. There are many types of press rolls. Older paper machines mostly used flat press rolls in the pressing section. As the speed of paper machines increased, vacuum press rolls began to be used, and then grooved press rolls were developed.

[0003] However, existing vacuum press rollers have suction holes around their perimeter. While the bottom suction hole absorbs water from the paper, the suction from other holes also creates suction, reducing the suction of the bottom hole and resulting in poor water absorption and low dehydration rate. To address these issues, innovative designs based on existing vacuum press rollers are urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide a high dehydration rate vacuum press roller to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high dehydration rate vacuum press roller, comprising a vacuum press roller body, an inner cavity formed inside the vacuum press roller body, a through hole formed at one end of the vacuum press roller body, a groove formed on the outer side of the vacuum press roller body, a water suction hole formed on the inner side of the groove, a baffle plate provided inside the inner cavity, a wear-resistant rubber sheet fixed on the outer side of the baffle plate, the outer side of the wear-resistant rubber sheet abutting against the inner side of the inner cavity, an air suction pipe rotatably mounted at the end of the vacuum press roller body via a sealed bearing, the outer sides of both ends of the vacuum press roller body rotatably connected to the inner sides of both ends of a U-shaped frame via sealed bearings, a support rod fixed to the inner wall of the air suction pipe, a circular plate fixed to the end of the support rod, a fixing rod fixed to one side of the circular plate, the outer wall of the fixing rod fixedly connected to the inner wall of the baffle plate via a support frame, and the end of the fixing rod connected to the interior of the vacuum press roller body via a sealed bearing.

[0006] Preferably, the suction tube is connected to the inner cavity through a through hole.

[0007] Preferably, the groove is connected to the inner cavity through a water absorption hole.

[0008] Preferably, the outer wall of the suction pipe is fixedly connected to the outer wall of the U-shaped frame via a fixing plate.

[0009] Preferably, the end of the vacuum press roller body is fixedly connected to the output end of the motor away from the through hole, and the outer wall of the motor is fixed to the outer wall of the U-shaped frame by a mounting bracket.

[0010] Preferably, the end of the baffle is in contact with the inner side of the inner cavity, and both the baffle and the wear-resistant rubber sheet are designed as arc-shaped structures.

[0011] Preferably, the support rods are distributed at equal angles about the central axis of the circular plate, and the diameter of the fixing rod is smaller than the diameter of the through hole.

[0012] Preferably, the support frame is designed as an "X" shaped structure.

[0013] Preferably, the water absorption hole is designed as a frustum-shaped structure, and the diameter of the opening end of the water absorption hole near the groove is smaller than the diameter of the opening end of the water absorption hole near the inner cavity.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This high dewatering rate vacuum press roller is equipped with baffles and wear-resistant rubber sheets, and both the baffles and wear-resistant rubber sheets are designed with arc-shaped structures. Under the action of the suction pipe, fixing plate, circular plate, support rod, fixing rod and support frame, the baffles and wear-resistant rubber sheets can be fixed, so that the baffles and wear-resistant rubber sheets can block all the water suction holes except the water suction holes at the bottom of the vacuum press roller body, thereby improving the suction force of the water suction holes at the bottom of the vacuum press roller body and improving the dewatering efficiency of the vacuum press roller body for paper. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 This is a side view sectional view of the installation structure of the baffle and wear-resistant rubber sheet of this utility model;

[0017] Figure 3 This is a side view sectional view of the installation structure of the support rod of this utility model.

[0018] In the diagram: 1. Vacuum press roller body; 2. Inner cavity; 3. Through hole; 4. Groove; 5. Water suction hole; 6. Baffle; 7. Wear-resistant rubber sheet; 8. Suction pipe; 9. Fixing plate; 10. Circular plate; 11. Support rod; 12. Fixing rod; 13. Support frame; 14. U-shaped frame; 15. Motor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3This utility model provides a technical solution: a high dehydration rate vacuum press roller, including a vacuum press roller body 1, an inner cavity 2 inside the vacuum press roller body 1, a through hole 3 at one end of the vacuum press roller body 1, a groove 4 on the outer side of the vacuum press roller body 1, a water suction hole 5 on the inner side of the groove 4, a baffle 6 inside the inner cavity 2, a wear-resistant rubber sheet 7 fixed on the outer side of the baffle 6, the outer side of the wear-resistant rubber sheet 7 abutting against the inner side of the inner cavity 2, and an air suction pipe 8 rotatably installed at the end of the vacuum press roller body 1 through a sealed bearing. The sides are rotatably connected to the inner sides of both ends of the U-shaped frame 14 via sealed bearings. A support rod 11 is fixed to the inner wall of the suction pipe 8. A circular plate 10 is fixed to the end of the support rod 11. A fixing rod 12 is fixed to one side of the circular plate 10. The outer wall of the fixing rod 12 is fixedly connected to the inner wall of the baffle 6 via a support frame 13. The support frame 13 is designed as an "X" shaped structure. The end of the fixing rod 12 is connected to the inside of the vacuum press roller body 1 via a sealed bearing. The end of the vacuum press roller body 1 is fixedly connected to the output end of the motor 15 away from the through hole 3. The outer wall of the motor 15 is fixed to the outer wall of the U-shaped frame 14 via a mounting bracket.

[0021] The suction pipe 8 is connected to the inner cavity 2 through the through hole 3, which ensures that the suction force generated by the exhaust fan can be applied to the inside of the inner cavity 2 through the suction pipe 8 and the through hole 3.

[0022] The groove 4 is connected to the inner cavity 2 through the water suction hole 5, which ensures that the suction force generated inside the inner cavity 2 can be applied to the inside of the groove 4 through the water suction hole 5.

[0023] The outer wall of the suction pipe 8 is fixedly connected to the outer wall of the U-shaped frame 14 through the fixing plate 9, so that the position of the suction pipe 8 can be fixed.

[0024] The end of the baffle 6 fits snugly against the inner side of the inner cavity 2. Both the baffle 6 and the wear-resistant rubber sheet 7 are designed with an arc-shaped structure, such as... Figure 2 As shown, the baffle 6 and the wear-resistant rubber sheet 7 can block all water suction holes 5 except for the water suction hole 5 at the bottom of the vacuum press roller body 1, thereby improving the suction force of the water suction hole 5 at the bottom of the vacuum press roller body 1 and improving the dewatering efficiency of the vacuum press roller body 1 on the paper.

[0025] The support rods 11 are distributed at equal angles with respect to the central axis of the circular plate 10, and the diameter of the fixing rod 12 is smaller than the diameter of the through hole 3, ensuring that the support rods 11 and the circular plate 10 will not block the suction pipe 8, and that the fixing rod 12 will not block the through hole 3.

[0026] The suction hole 5 is designed as a frustum-shaped structure, and the diameter of the opening end of the suction hole 5 near the groove 4 is smaller than the diameter of the opening end of the suction hole 5 near the inner cavity 2, which increases the suction force of the opening end of the suction hole 5 near the groove 4.

[0027] Working principle: When using this high dehydration rate vacuum press roller, firstly, the end of the suction pipe 8 is connected to an external exhaust fan. Starting the exhaust fan generates suction at the water suction hole 5 through the suction pipe 8, through hole 3, and inner cavity 2. Then, the motor 15 is started, driving the vacuum press roller body 1 to rotate. The vacuum press roller body 1 squeezes the paper, causing the water in the paper to enter the groove 4 and be absorbed by the water suction hole 5. The baffle 6 and the wear-resistant rubber sheet 7 are fixed in place by the suction pipe 8, fixing plate 9, circular plate 10, support rod 11, fixing rod 12, and support frame 13. Figure 2 As shown, this blocks all water suction holes 5 except for the one at the bottom of the vacuum press roller body 1, thus improving the water suction effect of the water suction holes 5 at the bottom of the vacuum press roller body 1.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high dehydration rate vacuum press roller, comprising a vacuum press roller body (1), characterized in that: The vacuum press roller body (1) has an inner cavity (2) inside. One end of the vacuum press roller body (1) has a through hole (3). The outer side of the vacuum press roller body (1) has a groove (4). The inner side of the groove (4) has a water suction hole (5). A baffle (6) is provided inside the inner cavity (2). A wear-resistant rubber sheet (7) is fixed on the outer side of the baffle (6). The outer side of the wear-resistant rubber sheet (7) abuts against the inner side of the inner cavity (2). The end of the vacuum press roller body (1) is rotatably mounted through a sealed bearing. There is an air suction pipe (8). The outer sides of both ends of the vacuum press roller body (1) are rotatably connected to the inner sides of both ends of the U-shaped frame (14) through sealed bearings. The inner wall of the air suction pipe (8) is fixed with a support rod (11). The end of the support rod (11) is fixed with a circular plate (10). One side of the circular plate (10) is fixed with a fixing rod (12). The outer wall of the fixing rod (12) is fixedly connected to the inner wall of the baffle (6) through a support frame (13). The end of the fixing rod (12) is connected to the inside of the vacuum press roller body (1) through a sealed bearing.

2. The high dehydration rate vacuum press roller according to claim 1, characterized in that: The suction tube (8) is connected to the inner cavity (2) through the through hole (3).

3. The high dehydration rate vacuum press roller according to claim 1, characterized in that: The groove (4) is connected to the inner cavity (2) through the water absorption hole (5).

4. The high dehydration rate vacuum press roller according to claim 1, characterized in that: The outer wall of the air intake pipe (8) is fixedly connected to the outer wall of the U-shaped frame (14) via a fixing plate (9).

5. A high dehydration rate vacuum press roller according to claim 1, characterized in that: The end of the vacuum press roller body (1) is fixedly connected to the output end of the motor (15) away from the through hole (3), and the outer wall of the motor (15) is fixed to the outer wall of the U-shaped frame (14) by the mounting bracket.

6. A high dehydration rate vacuum press roller according to claim 1, characterized in that: The end of the baffle (6) is in contact with the inner side of the inner cavity (2), and both the baffle (6) and the wear-resistant rubber sheet (7) are designed as arc-shaped structures.

7. A high dehydration rate vacuum press roller according to claim 1, characterized in that: The support rods (11) are distributed at equal angles about the central axis of the circular plate (10), and the diameter of the fixing rod (12) is smaller than the diameter of the through hole (3).

8. A high dehydration rate vacuum press roller according to claim 1, characterized in that: The support frame (13) is designed as an "X" shaped structure.

9. A high dehydration rate vacuum press roller according to claim 1, characterized in that: The water suction hole (5) is designed as a frustum-shaped structure, and the diameter of the opening end of the water suction hole (5) near the groove (4) is smaller than the diameter of the opening end of the water suction hole (5) near the inner cavity (2).

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