Multi-roller composite shoe pressing mechanism

Abstract

The utility model relates to a multi-roller composite shoe pressing mechanism, which belongs to the technical field of papermaking and comprises a U-shaped device frame and an upper roller, a plurality of bearing rollers are arranged on the inner side of the U-shaped device frame, a hydraulic cylinder is fixedly mounted at the bottom of the inner side of the U-shaped device frame, a shoe plate is fixedly mounted at the top of the hydraulic cylinder, and the upper roller is arranged on the shoe plate. An adjusting mechanism is arranged between the U-shaped device frame and the upper roller, the adjusting mechanism comprises a groove formed in the surface of the opposite side of the U-shaped device frame, a connecting plate is fixedly installed in the groove, and a threaded rod is rotationally installed between the connecting plate and the surface of the bottom of the inner side of the groove. According to the multi-roller composite shoe pressing mechanism, the adjusting mechanism is arranged between the U-shaped device frame and the bearing roller, so that the height of the upper roller can be adjusted when the multi-roller composite shoe pressing mechanism is used, the height of the upper roller can be adjusted along with the height of a shoe plate, and the tensioning force of the upper roller and the shoe plate on paper can be adjusted according to needs; therefore, the pressing and dewatering effects on the paper can be improved.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, specifically to a multi-roller composite shoe pressing mechanism. Background Technology

[0002] The application of boot press technology represents a landmark revolution in the pressing and dewatering technology of modern paper machine presses. Compared to traditional high-efficiency vacuum pressing, boot press technology offers advantages in the dewatering and pressing process of wet paper sheets: ultra-high linear pressure (up to 1000 kN / m), ultra-large dewatering area (press zone width 200-300 mm), longer dewatering time, lower pressing specific pressure, and lower dewatering resistance. Therefore, it exhibits significant advantages in the papermaking process. Paper machines using this technology have high speeds, low energy consumption, and high-quality finished paper (especially good bulk). Consequently, this pressing technology and equipment have become the preferred or essential equipment technology in the speed-up and energy-saving retrofitting of old paper machines and the design of new paper machines.

[0003] However, current multi-roller composite shoe pressing mechanisms can only adjust the shoe plate through hydraulic cylinders, and cannot adjust the height of the upper roll. This results in a fixed height between the upper roll and the support roll, making it impossible to adjust the tension of the material by adjusting the upper roll and the shoe plate, which affects the dewatering effect of the paper. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-roller composite shoe pressing mechanism, which has the advantage of easy adjustment of the upper roller. It solves the problem that current multi-roller composite shoe pressing mechanisms can only adjust the shoe plate through a hydraulic cylinder, and cannot adjust the height of the upper roller. This results in a fixed height between the upper roller and the support roller, making it impossible to adjust the tension of the material by adjusting the upper roller and the shoe plate, thus affecting the dewatering effect of the paper.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-roller composite shoe pressing mechanism, comprising a U-shaped device frame and an upper roller, wherein a plurality of supporting rollers are provided on the inner side of the U-shaped device frame, a hydraulic cylinder is fixedly installed at the bottom of the inner side of the U-shaped device frame, a shoe plate is fixedly installed on the top of the hydraulic cylinder, and an adjustment mechanism is provided between the U-shaped device frame and the upper roller;

[0006] The adjustment mechanism includes a groove formed on the opposite side surface of the U-shaped device frame, a connecting plate fixedly installed inside the groove, a threaded rod rotatably installed between the connecting plate and the bottom surface of the groove, a connecting block slidably installed inside the groove, a threaded hole formed on the surface of the connecting block, and a threaded connection between the threaded rod and the threaded hole, an upper roller fixedly installed between the opposite sides of the two connecting blocks, and a height observation component provided between the connecting blocks and the U-shaped device frame.

[0007] Furthermore, two limiting slots are provided between opposite surfaces inside the U-shaped device frame, and two limiting blocks are fixedly installed on opposite surfaces of the boot plate, which are inserted into the limiting slots. The opposite surface of the boot plate is in sliding contact with the inner surface of the U-shaped device frame.

[0008] The advantages of adopting the above-mentioned further solution are: it facilitates the lifting and lowering movement of the boot plate inside the U-shaped device frame and improves the movement stability of the boot plate.

[0009] Furthermore, a rotating rod that extends through to the upper surface of the connecting plate is fixedly installed on the top of the threaded rod, and a rotating block with anti-slip texture engraved on the side is fixedly installed on the top of the rotating rod.

[0010] The advantages of adopting the above-mentioned further solution are: it facilitates providing a force application point for the threaded rod and facilitates the rotation of the threaded rod.

[0011] Furthermore, the height observation component includes a scale line engraved on the opposite side surface of the U-shaped device frame, a pointer is fixedly installed on the surface of the connecting block, the surface of the connecting block is flush with the surface of the U-shaped device frame, one side of the pointer is in sliding contact with the surface of the connecting block, the scale line is located on one side of the groove, and the pointer corresponds to the scale line.

[0012] The beneficial effect of adopting the above-mentioned further solution is that by setting up a height observation component, it is easier to observe the adjustment height of the upper roller, which helps to keep the height of both ends of the upper roller consistent.

[0013] Furthermore, a slide bar is fixedly installed between the opposite surfaces inside the groove, and a strip groove is opened on the opposite surface of the connecting block. The slide bar is engaged in the strip groove, and the outer surface of the slide bar is in sliding contact with the inner surface of the strip groove.

[0014] The advantages of adopting the above-mentioned further solution are: it facilitates the limiting of the connecting block and helps prevent the connecting block from falling out of the groove.

[0015] Furthermore, the width of the connecting block is adapted to the width of the inner side of the groove, and the side surface of the connecting block and the inner surface of the groove are in sliding contact.

[0016] The advantage of adopting the above-mentioned further solution is that it facilitates the movement of the connecting block within the groove.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] This multi-roller composite shoe pressing mechanism, through an adjustment mechanism between the U-shaped frame and the support roller, allows for height adjustment of the upper roller during use. This height of the upper roller can be adjusted to match the height of the shoe plate, enabling the upper roller and shoe plate to adjust the tension on the paper as needed. This improves the pressure and dewatering effect on the paper. It solves the problem that current multi-roller composite shoe pressing mechanisms can only adjust the shoe plate via hydraulic cylinders, and cannot adjust the height of the upper roller. This results in a fixed height between the upper roller and the support roller, making it impossible to adjust the tension of the material on the material by the upper roller and shoe plate, thus affecting the dewatering effect of the paper. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the U-shaped device frame structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the inner structure of the U-shaped device frame of this utility model;

[0021] Figure 3 This is a schematic diagram of the connecting block structure of this utility model.

[0022] In the diagram: 1. U-shaped frame; 2. Upper roller; 3. Support roller; 4. Hydraulic cylinder; 5. Shoe plate; 6. Groove; 7. Connecting plate; 8. Threaded rod; 9. Connecting block; 10. Threaded hole; 11. Limiting groove; 12. Limiting block; 13. Rotating rod; 14. Rotating block; 15. Scale line; 16. Pointer; 17. Sliding bar; 18. Groove. Detailed Implementation

[0023] 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.

[0024] Example 1, please refer to Figures 1 to 3 This embodiment of a multi-roller composite shoe pressing mechanism includes a U-shaped device frame 1 and an upper roller 2. The U-shaped device frame 1 has a number of supporting rollers 3 on its inner side. A hydraulic cylinder 4 is fixedly installed at the bottom of the inner side of the U-shaped device frame 1, and a shoe plate 5 is fixedly installed at the top of the hydraulic cylinder 4. Two limiting strip grooves 11 are opened between opposite surfaces inside the U-shaped device frame 1. Two limiting blocks 12 are fixedly installed on the opposite surface of the shoe plate 5, which are inserted into the limiting strip grooves 11. The opposite surface of the shoe plate 5 is in sliding contact with the inner surface of the U-shaped device frame 1, which facilitates the lifting and lowering movement of the shoe plate 5 inside the U-shaped device frame 1 and improves the movement stability of the shoe plate 5.

[0025] An adjustment mechanism is provided between the U-shaped device frame 1 and the upper roller 2. The adjustment mechanism includes a groove 6 formed on the opposite side surface of the U-shaped device frame 1. A connecting plate 7 is fixedly installed inside the groove 6. A threaded rod 8 is rotatably installed between the connecting plate 7 and the bottom surface of the groove 6. A rotating rod 13 is fixedly installed at the top of the threaded rod 8, extending through to the upper surface of the connecting plate 7. A rotating block 14 with anti-slip textures is fixedly installed at the top of the rotating rod 13 to provide a force application point for the threaded rod 8 and facilitate its rotation. A connecting block 9 is slidably installed inside the groove 6. A threaded hole 10 is formed on the surface of the connecting block 9. The threaded rod 8 is threadedly connected to the threaded hole 10. The upper roller 2 is fixedly installed between the opposite sides of the two connecting blocks 9.

[0026] A height observation component is provided between the connecting block 9 and the U-shaped device frame 1. The height observation component includes a scale line 15 engraved on the opposite side surface of the U-shaped device frame 1. A pointer 16 is fixedly installed on the surface of the connecting block 9. The surface of the connecting block 9 is flush with the surface of the U-shaped device frame 1. One side of the pointer 16 slides in contact with the surface of the connecting block 9. The scale line 15 is located on one side of the groove 6. The pointer 16 corresponds to the scale line 15. By setting up the height observation component, it is convenient to observe the adjustment height of the upper roller 2, which helps to keep the height of the two ends of the upper roller 2 consistent.

[0027] Slide strips 17 are fixedly installed between opposite surfaces inside the groove 6. Strip grooves 18 are opened on opposite surfaces of the connecting block 9. The slide strips 17 are engaged in the strip grooves 18. The outer surface of the slide strips 17 slides in contact with the inner surface of the strip grooves 18, which facilitates the limiting of the connecting block 9 and helps prevent the connecting block 9 from falling out of the groove 6.

[0028] The working principle of the above embodiments is as follows:

[0029] In use, the two threaded rods 8 are rotated simultaneously by rotating rod 13 and rotating block 14. The connecting block 9 can be limited by sliding bar 17 and strip groove 18, so that the connecting block 9 can move up and down inside the groove 6, thereby adjusting the height of the upper roller 2. During the adjustment process, the height of the two ends of the upper roller 2 can be judged by observing the value of the scale line 15 corresponding to pointer 16. The height of the shoe plate 5 can be adjusted by hydraulic cylinder 4. The movement of limiting block 12 in limiting strip groove 11 can improve the stability of shoe plate 5 during adjustment.

[0030] In Embodiment 2, based on Embodiment 1, the width of the connecting block 9 is adapted to the width of the inner side of the groove 6, and the side surface of the connecting block 9 slides in contact with the inner surface of the groove 6, which facilitates the movement of the connecting block 9 within the groove 6.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-roller composite shoe pressing mechanism, comprising a U-shaped device frame (1) and an upper roller (2), wherein a plurality of supporting rollers (3) are provided on the inner side of the U-shaped device frame (1), a hydraulic cylinder (4) is fixedly installed on the bottom inner side of the U-shaped device frame (1), and a shoe plate (5) is fixedly installed on the top of the hydraulic cylinder (4), characterized in that: An adjustment mechanism is provided between the U-shaped device frame (1) and the upper roller (2); The adjustment mechanism includes a groove (6) on the opposite side surface of the U-shaped device frame (1), a connecting plate (7) is fixedly installed inside the groove (6), a threaded rod (8) is rotatably installed between the connecting plate (7) and the bottom surface of the inner side of the groove (6), a connecting block (9) is slidably installed inside the groove (6), a threaded hole (10) is opened on the surface of the connecting block (9), the threaded rod (8) is threadedly connected to the threaded hole (10), the upper roller (2) is fixedly installed between the opposite side surfaces of the two connecting blocks (9), and a height observation component is provided between the connecting block (9) and the U-shaped device frame (1).

2. The multi-roller composite shoe pressing mechanism according to claim 1, characterized in that: The U-shaped device frame (1) has two limiting slots (11) between opposite sides of its interior surface. The shoe plate (5) has two limiting blocks (12) fixedly installed on opposite sides of its interior surface, which are inserted into the limiting slots (11). The opposite side of the shoe plate (5) is in sliding contact with the interior surface of the U-shaped device frame (1).

3. The multi-roller composite shoe pressing mechanism according to claim 1, characterized in that: The threaded rod (8) is fixedly installed with a rotating rod (13) that extends through to the upper surface of the connecting plate (7). The rotating rod (13) is fixedly installed with a rotating block (14) whose side is engraved with anti-slip texture.

4. The multi-roller composite shoe pressing mechanism according to claim 1, characterized in that: The height observation component includes a scale line (15) engraved on the opposite side surface of the U-shaped device frame (1), a pointer (16) is fixedly installed on the surface of the connecting block (9), the surface of the connecting block (9) is flush with the surface of the U-shaped device frame (1), one side surface of the pointer (16) is in sliding contact with the surface of the connecting block (9), the scale line (15) is located on one side of the groove (6), and the pointer (16) corresponds to the scale line (15).

5. The multi-roller composite shoe pressing mechanism according to claim 1, characterized in that: Slides (17) are fixedly installed between opposite surfaces inside the groove (6), and strip grooves (18) are opened on opposite surfaces of the connecting block (9). The slides (17) are engaged in the strip grooves (18), and the outer surface of the slides (17) and the inner surface of the strip grooves (18) slide in contact.

6. The multi-roller composite shoe pressing mechanism according to claim 1, characterized in that: The width of the connecting block (9) is adapted to the width of the inner side of the groove (6), and the side surface of the connecting block (9) and the inner surface of the groove (6) are in sliding contact.

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