Press roll for paper machine

Abstract

The utility model relates to the field of paper machines, and discloses a press roll for a paper machine, which comprises a first press roll and a second press roll which are oppositely arranged, a first moving part for driving the first press roll to move, and a second moving part for driving the second press roll to move. Firstly, the second moving part is adjusted to achieve large adjustment of the distance between the first press roll and the second press roll in a large range, and after large adjustment is completed, the first moving part is arranged to control the first press roll to ascend and descend so as to achieve fine adjustment of the distance between the first press roll and the second press roll; and the bevel gear II and the bevel gear rotate to drive the threaded rod to rotate, so that the threaded rod rotationally ascends or descends to drive the sliding column to move upwards or downwards relative to the fixed column, the movable plate I and the first press roll move along with the sliding column, and fine adjustment of the distance between the first press roll and the second press roll is realized. The utility model has the advantages and effects that the distance between the squeezing rollers is convenient to adjust, and the squeezing efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking machines, in particular to a pressing roller for papermaking machines. Background Art

[0002] The papermaking industry plays an important role in the national economy. With the rapid development of various sectors of my country's national economy and the continuous improvement of people's cultural and living standards, the use of paper is becoming more and more extensive, and the demand for paper is increasing. Therefore, the requirements for the quantity and quality of paper are also increasing. The vacuum press roll is a commonly used component on the papermaking machine. The main function of the press section of the paper machine is to dehydrate and solidify the paper sheets, while improving the performance of the paper sheets and increasing the strength of the wet paper web to improve the drying capacity of the drying section. The existing papermaking press rolls are two pairs of rollers, which rotate relative to each other. The paper passes through the middle of the two pairs of rollers, and the paper can be dehydrated. However, the use range is narrow during use, and there are problems such as difficulty in adjusting the distance between the two rollers and inability to accurately adjust the distance between the two press rolls according to the thickness of the paper, which affects the pressing efficiency. Utility Model Content

[0003] The utility model aims to provide a pressing roller for a paper machine, which can solve the above technical problems, facilitate the adjustment of the pressing roller spacing and improve the pressing efficiency.

[0004] The above technical purpose of the utility model is achieved through the following technical scheme: a pressing roller for a papermaking machine, comprising a first pressing roller, a second pressing roller, a first movable member that drives the first pressing roller to move, and a second movable member that drives the second pressing roller to move, the first movable member comprising two relative fixed columns, a threaded rod rotatably connected inside the fixed column, a nut fixed on the top, the threaded rod threadably connected to the nut and a bevel gear 1 fixed on the top, a sliding column is provided on the sliding sleeve of the outer wall of the fixed column, the same rotating rod passes through the top of the two sliding columns, bevel gears 2 are provided at both ends of the rotating rod, bevel gear 1 is meshed with bevel gear 2, a moving plate 1 is fixed between the two sliding columns, two upright columns 1 are fixed at the bottom of the moving plate 1, and the first pressing roller is rotatably connected between the upright columns 1.

[0005] By adopting the above technical scheme, a first movable member is provided to control the lifting and lowering of the first pressing roller to fine-tune the spacing between the first pressing roller and the second pressing roller. When the spacing needs to be fine-tuned, the rotating rod is rotated, and the rotating rod drives the second bevel gear to rotate. The second bevel gear is meshed with the first bevel gear, thereby driving the threaded rod to rotate. The threaded rod is threadedly connected in a nut and the nut is fixed in a fixed column. Therefore, the threaded rod rotates to rise or fall, driving the sliding column to move upward or downward relative to the fixed column, and the movable plate 1 and the first pressing roller move accordingly, thereby realizing the adjustment of the spacing between the first pressing roller and the second pressing roller. This has the advantage of facilitating the adjustment of the spacing between the first pressing roller and the second pressing roller according to the thickness of the paper, thereby improving the pressing efficiency.

[0006] The utility model is further configured as follows: the second movable member includes two guide rods located on the inner side of the fixed column, a bidirectional screw is rotatably arranged between the guide rods, the spiral directions of the two ends of the bidirectional screw are opposite and both are threadedly connected to sliders, a connecting rod is hinged on the slider, the tops of the two connecting rods are hinged on the same base, a movable plate 2 is fixed on the top of the base, the movable plate 2 is slidably connected to the guide rods and two columns 2 are fixed on the top, and the second pressing roller is rotatably connected between the columns 2.

[0007] By adopting the above technical solution, a second movable member is provided to adjust the distance between the first pressing roller and the second pressing roller over a large range. When the distance needs to be adjusted to a large extent, the bidirectional screw is rotated to drive the two sliders to move closer or farther from each other synchronously, and the connecting rod is driven to rotate left and right, thereby driving the second movable plate to rise and fall, so as to realize a large adjustment of the distance between the first pressing roller and the second pressing roller. After the large adjustment is completed, the first movable member can be adjusted again to realize precise adjustment, and the distance between the first pressing roller and the second pressing roller can be adjusted conveniently and quickly.

[0008] The utility model is further configured as follows: the fixed column and the sliding column are both square.

[0009] By adopting the above technical solution, the sliding column is prevented from rotating when sliding along the fixed column, causing side tilting and jamming, thereby ensuring smooth sliding of the sliding column.

[0010] The utility model is further configured as follows: a hand crank is fixedly arranged at one end of the rotating rod.

[0011] By adopting the above technical solution, a hand crank is provided, and rotating the hand crank drives the rotating rod to rotate, so the structure is simple, labor-saving and easy to operate.

[0012] The utility model is further configured as follows: limiting rings are fixedly arranged at both ends of the rotating rod, and the limiting rings are rotatably connected to the sliding column to limit the translation of the rotating rod.

[0013] By adopting the above technical solution, a limiting ring is provided so that the rotating rod can only rotate but will not move left and right relative to the sliding rod, thereby ensuring that the bevel gear 2 is stably meshed with the bevel gear 1.

[0014] The utility model is further configured as follows: a hand wheel is fixedly arranged at one end of the bidirectional screw.

[0015] By adopting the above technical solution, a hand wheel is arranged to drive the bidirectional screw to rotate, and the structure is simple, labor-saving and easy to operate.

[0016] The utility model is further configured as follows: a frosted section is fixedly arranged in the middle of the bidirectional screw rod, and the frosted section is used for limiting the sliding block.

[0017] By adopting the above technical solution and setting a frosted section, the sliders are stuck when they move towards each other and cannot move further towards each other, thereby preventing the sliders from crossing the threads of the bidirectional screw and causing slipping.

[0018] The utility model is further configured as follows: the fixing column and the guide rod are fixedly arranged on the workbench.

[0019] The utility model is further configured as follows: the fixing column is welded and fixed on the workbench.

[0020] By adopting the above technical solution, the fixing column is fixed on the workbench by welding, and the guide rod is supported on the workbench.

[0021] The utility model is further configured as follows: a support piece is arranged inside the fixing column, and a nut is fixed on the support piece.

[0022] By adopting the above technical solution, the nut is fixed in the fixing column to achieve fixation of the nut.

[0023] The beneficial effects of the utility model are:

[0024] 1. A first movable member is provided to control the lifting and lowering of the first pressing roller to fine-tune the spacing between the first pressing roller and the second pressing roller. When the spacing needs to be fine-tuned, the rotating rod is rotated, and the rotating rod drives the second bevel gear to rotate. The second bevel gear is meshed with the first bevel gear, thereby driving the threaded rod to rotate. The threaded rod is threadedly connected in the nut and the nut is fixed in the fixed column. Therefore, the threaded rod rotates to rise or fall, driving the sliding column to move upward or downward relative to the fixed column, and the movable plate 1 and the first pressing roller move accordingly, thereby realizing the adjustment of the spacing between the first pressing roller and the second pressing roller. This has the advantages of conveniently adjusting the spacing between the first pressing roller and the second pressing roller according to the thickness of the paper and improving the pressing efficiency.

[0025] 2. The second movable part is set to adjust the distance between the first pressing roller and the second pressing roller in a large range. When the distance needs to be adjusted to a large extent, the bidirectional screw is rotated to drive the two sliders to move closer or farther from each other synchronously, and the connecting rod is driven to rotate left and right, thereby driving the second movable plate to rise and fall, so as to achieve a large adjustment of the distance between the first pressing roller and the second pressing roller. After the large adjustment is completed, the first movable part can be adjusted again to achieve precise adjustment, and the distance between the first pressing roller and the second pressing roller can be adjusted conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a front view of the utility model.

[0028] Figure 2 It is a schematic diagram of the interior of the sliding column of the utility model.

[0029] In the figure, 1, the first pressing roller; 2, the second pressing roller; 3, the first moving part; 30, the fixed column; 31, the threaded rod; 32, the nut; 33, the bevel gear one; 34, the sliding column; 35, the rotating rod; 351, the bevel gear two; 36, the moving plate one; 37, the column one; 38, the hand crank; 39, the limit ring; 4, the second moving part; 40, the guide rod; 41, the bidirectional screw; 411, the frosting section; 42, the slider; 43, the connecting rod; 44, the base; 45, the moving plate two; 46, the column two; 47, the hand wheel; 5, the workbench; 6, the supporting part. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment, a press roll for a paper machine, such as Figure 1-Figure 2 As shown, it includes a workbench 5, a first pressing roller 1 and a second pressing roller 2 arranged opposite to each other, and drives the first pressing roller 1 to move, including two fixed columns 30 fixed on the workbench 5 and arranged opposite to each other, a support member 6 fixed on the top of the fixed column 30 and fixedly connected with a nut 32 on the top, a threaded rod 31 threadedly connected in the nut 32 and fixedly provided with a bevel gear 33 on the top, a sliding column 34 sleeved on the fixed column and slidably connected with the fixed column, a rotating rod 35 penetrating the two sliding columns 34 and fixedly provided with bevel gears 351 at both ends, a hand crank 38 for driving the rotating rod 35 to rotate, a limit ring 39 for limiting the translation of the rotating rod 35, and a column 31 fixedly provided at both ends on the sliding column 34 and fixedly provided with a bevel gear 351 at the bottom. The first moving part 3 of the moving plate 1 36 of 7, wherein the bevel gear 1 33 is meshed with the bevel gear 2 351, the first pressing roller 1 is rotatably connected between the columns 1 37, the fixed column 30 and the sliding column 34 are square, and the second pressing roller 2 is driven to move, including two opposite guide rods 40 fixed on the workbench 5, a bidirectional screw 41 rotatably connected between the guide rods 40 and provided with a frosting section 411 in the middle, a slider 42 threadedly connected to both ends of the bidirectional screw 41, a connecting rod 43 with one end hinged to the slider 42 and the other end hinged to the base 44, a moving plate 2 45 fixed on the base 44 and with a column 2 46 fixed on the top, and a second moving part 4 of a hand wheel 47 that drives the bidirectional screw 41 to rotate.

[0032] Its working principle is: first, when the spacing needs to be adjusted to a large extent, the second moving member 4 is set to adjust the spacing between the first pressing roller 1 and the second pressing roller 2 in a large range, and the bidirectional screw 41 is driven to rotate by turning the hand wheel 47, and the two sliders 42 are synchronously moved closer or farther away from each other, driving the connecting rod 43 to rotate left and right, thereby driving the second moving plate 45 to rise and fall, so as to achieve a large adjustment of the spacing between the first pressing roller 1 and the second pressing roller 2. After the large adjustment is completed, the first moving member 3 is set to control the lifting and lowering of the first pressing roller 1 to fine-tune the spacing between the first pressing roller 1 and the second pressing roller 2. The hand crank 38 is rotated to drive the rotating rod 35 to rotate, and the bevel gear 2 351 rotates accordingly. The bevel gear 2 351 meshes with the bevel gear 1 33, thereby driving the threaded rod 31 to rotate. The threaded rod 31 is threadedly connected in the nut 32 and the nut 32 is fixed in the fixed column 30, so that the threaded rod 31 rotates to rise or fall, driving the sliding column 34 to move upward or downward relative to the fixed column 30, and the movable plate 1 36 and the first pressing roller 1 move accordingly, thereby realizing the fine adjustment of the distance between the first pressing roller 1 and the second pressing roller 2.

Claims

1. A press roll for a paper machine, characterized in that: The invention comprises a first pressing roller (1), a second pressing roller (2), a first moving member (3) for driving the first pressing roller (1) to move, and a second moving member (4) for driving the second pressing roller (2) to move. The first moving member (3) comprises two opposite fixed columns (30). A threaded rod (31) is rotatably connected inside the fixed column (30), and a nut (32) is fixed on the top. The threaded rod (31) is threadedly connected to the nut (32) and a bevel gear (33) is fixed on the top. The fixed column ( 30) The outer wall sliding sleeve is provided with a sliding column (34), and the same rotating rod (35) passes through the top of the two sliding columns (34), and bevel gears (351) are provided at both ends of the rotating rod (35), and the bevel gear (33) is meshed with the bevel gear (351). A moving plate (36) is fixed between the two sliding columns (34), and two vertical columns (37) are fixed at the bottom of the moving plate (36), and the first pressing roller (1) is rotatably connected between the vertical columns (37).

2. A press roll for a paper machine according to claim 1, characterized in that: The second movable member (4) comprises two guide rods (40) located inside the fixed column (30), a bidirectional screw (41) is rotatably arranged between the guide rods (40), the two ends of the bidirectional screw (41) have opposite spiral directions and are both threadedly connected to a slider (42), a connecting rod (43) is hinged on the slider (42), the tops of the two connecting rods (43) are hinged on the same base (44), a movable plate 2 (45) is fixed on the top of the base (44), the movable plate 2 (45) is slidably connected to the guide rod (40) and two columns 2 (46) are fixed on the top, and the second pressing roller (2) is rotatably connected between the columns 2 (46).

3. A press roll for a paper machine according to claim 1, characterized in that: The fixed column (30) and the sliding column (34) are both square.

4. A press roll for a paper machine according to claim 1, characterized in that: A hand crank (38) is fixedly provided at one end of the rotating rod (35).

5. A press roll for a paper machine according to claim 1, characterized in that: Limiting rings (39) are fixedly provided at both ends of the rotating rod (35), and the limiting rings (39) are rotatably connected to the sliding column (34) to limit the translation of the rotating rod (35).

6. A press roll for a paper machine according to claim 2, characterized in that: A hand wheel (47) is fixedly disposed at one end of the bidirectional screw (41).

7. A press roll for a paper machine according to claim 2, characterized in that: A frosted section (411) is fixedly disposed in the middle of the bidirectional screw (41), and the frosted section (411) is used for limiting the sliding block (42).

8. A press roll for a paper machine according to claim 2, characterized in that: The fixed column (30) and the guide rod (40) are fixedly mounted on the workbench (5).

9. A press roll for a paper machine according to claim 8, characterized in that: The fixing column (30) is fixed on the workbench (5) by welding.

10. A press roll for a paper machine according to claim 1, characterized in that: A support member (6) is provided inside the fixing column (30), and the nut (32) is fixed on the support member (6).

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