A dewatering blade for a paper machine

Abstract

The utility model relates to paper machine technical field, especially is with dehydration squeegee for paper machine, including rectangular frame, the top of rectangular frame all installs the external installation board, the inside of rectangular frame is provided with rotation lift adjusting mechanism, and the bottom of rotation lift adjusting mechanism installs lift plate, the bottom of lift plate is provided with squeegee assembly, the sidewall of lift plate one end is provided with installation and dismounting mechanism, the bottom of rectangular frame all installs elastic component, and the bottom of elastic component and the top of lift plate fixed connection. The utility model first through the inner wall of welding sleeve all installs guide rail, and the inside of guide rail is provided with guide block, the sidewall of guide block installs vertical rod, and the bottom of vertical rod and the top of lift plate fixed connection, the top of welding sleeve inside installs high pressure spring main part, and the bottom of high pressure spring main part and the top of vertical rod fixed connection.

Description

Technical Field

[0001] This utility model relates to the field of papermaking machine technology, and in particular to a dewatering scraper for a papermaking machine. Background Technology

[0002] A papermaking machine is a collective term for a complete set of equipment that links different parts of the pulp to form a paper web. It includes main components such as the headbox, wire section, press section, dryer section, calender, winding machine, and drive section, as well as auxiliary systems such as steam, water, vacuum, lubrication, and heat recovery. The dewatering scraper for the papermaking machine is an important component used in the papermaking process. When the forming board passes under the scraper, it scrapes off the top of the pulp in the forming board to facilitate subsequent dewatering processes and level the pulp. Traditional dewatering scrapers are mostly fixed plate structures that often require manual adjustment to meet different production needs.

[0003] Most dewatering scrapers used in papermaking machines on the market currently do not allow for height adjustment, making it impossible to dewater paper of different thicknesses and increasing the workload of operators. Furthermore, existing dewatering scrapers cannot be disassembled and replaced, further increasing the workload of operators. Therefore, a new type of dewatering scraper for papermaking machines is needed to meet people's needs. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given that most dewatering scrapers used in papermaking machines on the market, as described above or in the existing technology, typically cannot adjust their height, thus making it impossible to dewater paper of different thicknesses and increasing the labor intensity of operators, and that existing dewatering scrapers cannot be disassembled and replaced, further increasing the labor intensity of operators, a new type of dewatering scraper for papermaking machines is needed to meet people's usage needs.

[0006] Therefore, the purpose of this utility model is to provide a dewatering scraper for a papermaking machine.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a dewatering scraper for a papermaking machine, comprising a rectangular frame, an external mounting plate installed at the top of each rectangular frame, a rotation and lifting adjustment mechanism provided inside the rectangular frame, a lifting plate installed at the bottom of the rotation and lifting adjustment mechanism, a scraper assembly provided at the bottom of the lifting plate, an installation and disassembly mechanism provided on the side wall of one end of the lifting plate, and an elastic component installed at the bottom of each rectangular frame, with the bottom of the elastic component fixedly connected to the top of the lifting plate.

[0008] As a preferred embodiment of the dewatering scraper for a papermaking machine according to this utility model, the rotary lifting adjustment mechanism includes a positive and negative threaded rod body, which is rotatably mounted inside a rectangular frame via bearings. The outer walls of the positive and negative threaded rod bodies are threadedly connected to threaded mounting collars, and the outer walls of the threaded mounting collars are hinged to hinge plates. A welded disc is installed at one end of the positive and negative threaded rod body. Crossbars are fixedly installed on the side walls at both ends of the internal structure of the positive and negative threaded rod body, and sliding limiting collars are sleeved on the outer walls of the crossbars. The outer walls of the sliding limiting collars are fixedly connected to the side walls of the threaded mounting collars.

[0009] By adopting the above technical solution, this solution uses the cooperation between the sliding limit collar and the crossbar to enable the threaded mounting collar to slide on the outer wall of the crossbar while sliding.

[0010] As a preferred embodiment of the dewatering scraper for a papermaking machine according to the present invention, the lifting plate has a first rectangular groove at its top, and a rectangular block is provided inside the first rectangular groove. The top of the rectangular block is hinged to the bottom of the hinge plate. The side walls on both sides of the first rectangular groove have second rectangular grooves, and a sliding block is provided inside the second rectangular groove. The side wall of one side of the sliding block is fixedly connected to the side wall of the rectangular block.

[0011] By adopting the above technical solution, this solution uses the cooperation between the sliding block and the second rectangular groove to enable the rectangular block to drive the sliding block to slide inside the second rectangular groove.

[0012] As a preferred embodiment of the dewatering scraper for a papermaking machine according to the present invention, wherein: the bottom end of the lifting plate is provided with an installation groove, and the side walls at both ends of the lifting plate are provided with first threaded holes, and the first threaded holes are connected to the installation groove.

[0013] By adopting the above technical solution, the bolt rod body is connected to the first threaded hole by a thread, thereby allowing the bolt rod body to rotate and slide inside the first threaded hole.

[0014] As a preferred embodiment of the dewatering scraper for a papermaking machine according to the present invention, the scraper assembly includes a scraper body, and a mounting cylinder is installed on the top of the scraper body. The side wall of the mounting cylinder is provided with a second threaded hole, and the mounting cylinder and the mounting groove cooperate with each other.

[0015] By adopting the above technical solution, the scraper body is installed by inserting the mounting cylinder into the mounting groove through the mutual cooperation of the mounting cylinder and the mounting groove.

[0016] As a preferred embodiment of the dewatering scraper for a papermaking machine according to this utility model, the installation and disassembly mechanism includes a bolt rod body, which is threadedly connected to the inside of the first threaded hole and the second threaded hole.

[0017] By adopting the above technical solution, the bolt rod body is threadedly connected to the first threaded hole and the second threaded hole respectively, thereby causing the bolt rod body to rotate to achieve threaded connection with the first threaded hole and the second threaded hole.

[0018] In a preferred embodiment of the dewatering scraper for a papermaking machine according to this utility model, the elastic component includes a welded sleeve, which is fixedly installed at the bottom of a rectangular frame. The inner wall of the welded sleeve is equipped with guide rails, and guide blocks are provided inside the guide rails. Vertical rods are installed on the side walls of the guide blocks, and the bottom end of the vertical rods is fixedly connected to the top end of the lifting plate. A high-pressure spring body is installed at the top end inside the welded sleeve, and the bottom end of the high-pressure spring body is fixedly connected to the top end of the vertical rods.

[0019] By adopting the above technical solution, through the cooperation of the guide rail and the guide block, the vertical rod can slide inside the guide rail through the guide block and squeeze the high-pressure spring body to deform.

[0020] In a preferred embodiment of the dewatering scraper for a papermaking machine according to this utility model, the scraper assembly is semi-circular in shape.

[0021] By adopting the above technical solution, and by using a semi-circular shape for the scraper assembly, the paper dehydration effect is improved.

[0022] The dewatering scraper for a papermaking machine of this invention has the following beneficial effects: This invention first connects the threaded mounting collar to the main body of the positive and negative threaded rod via a threaded connection. Through the cooperation of a sliding limiting collar and a crossbar, and the hinge plate hinged to the side walls of the threaded mounting collar and the rectangular block respectively, the main body of the positive and negative threaded rod rotates while simultaneously driving the two sets of threaded mounting collars to slide in opposite directions on the outer wall of the main body. This allows the two sets of threaded mounting collars to slide in opposite directions, driving the hinge plate to rotate. This rotation of the hinge plate then causes the rectangular block to slide inside the first rectangular groove, thereby raising and lowering the lifting plate. The height of the scraper body is adjusted by the raising and lowering of the lifting plate, thus enabling the dewatering of paper of different thicknesses and reducing the labor intensity of the operator.

[0023] This invention firstly involves the mounting cylinder engaging with the mounting groove, and then connecting the bolt rod body to the second and first threaded holes respectively. This prevents the bolt rod body from engaging with the first and second threaded holes during rotation, thus facilitating the disassembly and replacement of the scraper body by the operator and reducing the operator's workload. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the main structure of a dewatering scraper for a papermaking machine. Figure 2 This is a front view schematic diagram of the internal structure of a dewatering scraper for a papermaking machine; Figure 3 A schematic diagram of the internal structure of the welded sleeve of a dewatering scraper for a papermaking machine; Figure 4 This is a schematic diagram of the front cross-sectional structure of a dewatering scraper for a papermaking machine; Figure 5 For a dewatering scraper for a papermaking machine Figure 4 Enlarged structural diagram at point A in the middle.

[0025] The attached diagram lists the components represented by each number as follows: 1. Rectangular frame; 2. External mounting plate; 3. Rotary lifting and adjusting mechanism; 301. Main body of the positive and negative threaded rod; 302. Threaded mounting collar; 303. Hinge plate; 304. Welded disc; 305. Sliding limit collar; 306. Crossbar; 4. Lifting plate; 401. First rectangular groove; 402. Rectangular block; 403. Second rectangular groove; 404. Sliding block; 405. Mounting groove; 406. First threaded hole; 5. Scraper assembly; 501. Scraper body; 502. Mounting cylinder; 503. Second threaded hole; 6. Installation and disassembly mechanism; 601. Bolt rod body; 7. Elastic component; 701. Welded sleeve; 702. Guide rail; 703. Guide block; 704. Vertical rod; 705. High-pressure spring body. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1: Refer to Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a dewatering scraper for a papermaking machine, which solves the problem that most dewatering scrapers for papermaking machines on the market cannot adjust their height, thus making it impossible to dewater paper of different thicknesses and increasing the labor intensity of operators. It includes a rectangular frame 1, with an external mounting plate 2 installed at the top of the rectangular frame 1. A rotary lifting adjustment mechanism 3 is provided inside the rectangular frame 1, and a lifting plate 4 is installed at the bottom of the rotary lifting adjustment mechanism 3. An elastic component 7 is installed at the bottom of the rectangular frame 1, and the bottom of the elastic component 7 is fixedly connected to the top of the lifting plate 4.

[0030] Combination Figure 1 , Figure 2 and Figure 4In an embodiment of this utility model, the rotary lifting adjustment mechanism 3 includes a positive and negative threaded rod body 301. The positive and negative threaded rod body 301 is rotatably mounted inside the rectangular frame 1 via bearings. The outer walls of the positive and negative threaded rod body 301 are threadedly connected to threaded mounting collars 302, and the outer walls of the threaded mounting collars 302 are hinged to hinge plates 303. A welding disc 304 is installed at one end of the positive and negative threaded rod body 301. A crossbar 306 is fixedly installed on the side walls at both ends inside the positive and negative threaded rod body 301, and a sliding limiting collar 305 is sleeved on the outer wall of the crossbar 306. The outer wall of the sliding limiting collar 305 is fixedly connected to the side wall of the threaded mounting collar 302. Through the cooperation of the sliding limiting collar 305 and the crossbar 306, the threaded mounting collar 302 can drive the sliding limiting collar 305 to slide on the outer wall of the crossbar 306 while sliding.

[0031] Combination Figure 1 , Figure 2 and Figure 4 In this embodiment of the present invention, a first rectangular groove 401 is provided at the top of the lifting plate 4, and a rectangular block 402 is provided inside the first rectangular groove 401. The top of the rectangular block 402 is hinged to the bottom of the hinge plate 303. A second rectangular groove 403 is provided on both sides of the inner sidewall of the first rectangular groove 401, and a sliding block 404 is provided inside the second rectangular groove 403. One sidewall of the sliding block 404 is fixedly connected to the sidewall of the rectangular block 402. The sliding block 404 and the second rectangular groove 403 cooperate with each other, so that the rectangular block 402 can drive the sliding block 404 to slide inside the second rectangular groove 403.

[0032] Combination Figure 1 , Figure 2 and Figure 3 In an embodiment of this utility model, the elastic component 7 includes a welded sleeve 701, which is fixedly installed at the bottom of the rectangular frame 1. The inner wall of the welded sleeve 701 is equipped with a guide rail 702, and a guide block 703 is provided inside the guide rail 702. A vertical rod 704 is installed on the side wall of the guide block 703, and the bottom end of the vertical rod 704 is fixedly connected to the top end of the lifting plate 4. A high-pressure spring body 705 is installed at the top end inside the welded sleeve 701, and the bottom end of the high-pressure spring body 705 is fixedly connected to the top end of the vertical rod 704. Through the cooperation of the guide rail 702 and the guide block 703, the vertical rod 704 can slide inside the guide rail 702 through the guide block 703 and squeeze the high-pressure spring body 705 to deform.

[0033] The specific working principle is as follows: First, the rectangular frame 1 is installed with the paper machine via the external mounting plate 2. When it is necessary to apply water to paper of different thicknesses, the main body 301 of the positive and negative threading rod is rotated. At the same time, the threaded mounting collar 302 is threadedly connected to the main body 301 of the positive and negative threading rod. The sliding limit collar 305 and the crossbar 306 cooperate with each other, and the hinge plate 303 is hinged to the side wall of the threaded mounting collar 302 and the rectangular block 402 respectively, so that the main body 301 of the positive and negative threading rod rotates simultaneously. The two sets of threaded mounting collars 302 can slide in opposite directions on the outer wall of the positive and negative threaded rod body 301. This allows the two sets of threaded mounting collars 302 to slide in opposite directions, thereby driving the hinge plate 303 to rotate. The rotation of the two sets of hinge plates 303 drives the rectangular block 402 to slide inside the first rectangular groove 401 and drives the lifting plate 4 to rise and fall. The height of the scraper body 501 can be adjusted by raising and lowering the lifting plate 4, thereby dewatering paper of different thicknesses and reducing the labor intensity of the operator.

[0034] Example 2: Refer to Figures 1-5 This is the first embodiment of the present utility model. This embodiment provides a dewatering scraper for a papermaking machine, which can solve the problem that existing dewatering scrapers for papermaking machines cannot be disassembled and replaced, thus increasing the labor intensity of operators. The bottom end of the lifting plate 4 is provided with a scraper assembly 5, and the side wall of one end of the lifting plate 4 is provided with an installation and disassembly mechanism 6. The bottom end of the lifting plate 4 is provided with an installation groove 405, and the side walls at both ends of the lifting plate 4 are provided with first threaded holes 406, and the first threaded holes 406 are connected to the installation grooves 405.

[0035] Combination Figure 1 , Figure 2 and Figure 4 In an embodiment of this utility model, the scraper assembly 5 includes a scraper body 501, and a mounting cylinder 502 is installed on the top of the scraper body 501. The side wall of the mounting cylinder 502 is provided with a second threaded hole 503. The mounting cylinder 502 and the mounting groove 405 cooperate with each other. The scraper assembly 5 is semi-circular in shape. By making the scraper assembly 5 semi-circular, the paper dewatering effect is better.

[0036] Combination Figure 2 , Figure 3 and Figure 5 In an embodiment of this utility model, the installation and disassembly mechanism 6 includes a bolt rod body 601, which is threadedly connected to the inside of the first threaded hole 406 and the second threaded hole 503. By threading the bolt rod body 601 with the first threaded hole 406 and the second threaded hole 503 respectively, the bolt rod body 601 can be rotated to thread it with the first threaded hole 406 and the second threaded hole 503.

[0037] The specific working principle is as follows: when the scraper body 501 needs to be disassembled and replaced, the mounting cylinder 502 first engages with the mounting groove 405, and then is threadedly connected to the bolt rod body 601 through the second threaded hole 503 and the first threaded hole 406 respectively. This allows the bolt rod body 601 to rotate and engage with the first threaded hole 406 and the second threaded hole 503, making it easier for operators to install, disassemble and replace the scraper body 501, thereby reducing the labor intensity of operators.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dewatering scraper for a papermaking machine, characterized in that: The rectangular frame (1) is provided with an external mounting plate (2) at the top of each rectangular frame (1). The rectangular frame (1) is provided with a rotating lifting adjustment mechanism (3) inside, and a lifting plate (4) is installed at the bottom of the rotating lifting adjustment mechanism (3). A scraper assembly (5) is provided at the bottom of the lifting plate (4). An installation and disassembly mechanism (6) is provided on the side wall of one end of the lifting plate (4). An elastic component (7) is installed at the bottom of each rectangular frame (1), and the bottom of the elastic component (7) is fixedly connected to the top of the lifting plate (4).

2. The dewatering scraper for a papermaking machine as described in claim 1, characterized in that: The rotary lifting adjustment mechanism (3) includes a positive and negative threaded rod body (301), which is rotatably mounted inside the rectangular frame (1) via bearings. The outer wall of the positive and negative threaded rod body (301) is threadedly connected to a threaded mounting collar (302), and the outer wall of the threaded mounting collar (302) is hinged to a hinge plate (303). A welding disc (304) is installed at one end of the positive and negative threaded rod body (301). A crossbar (306) is fixedly installed on the side walls of both ends of the positive and negative threaded rod body (301), and a sliding limit collar (305) is sleeved on the outer wall of the crossbar (306). The outer wall of the sliding limit collar (305) is fixedly connected to the side wall of the threaded mounting collar (302).

3. The dewatering scraper for a papermaking machine as described in claim 1, characterized in that: The top of the lifting plate (4) is provided with a first rectangular groove (401), and a rectangular block (402) is provided inside the first rectangular groove (401). The top of the rectangular block (402) is hinged to the bottom of the hinge plate (303). The side walls on both sides of the first rectangular groove (401) are provided with second rectangular grooves (403), and a sliding block (404) is provided inside the second rectangular groove (403). The side wall of the sliding block (404) is fixedly connected to the side wall of the rectangular block (402).

4. A dewatering scraper for a papermaking machine as described in claim 1, characterized in that: The bottom end of the lifting plate (4) is provided with an installation groove (405), and the side walls at both ends of the lifting plate (4) are provided with a first thread hole (406), and the first thread hole (406) is connected to the installation groove (405).

5. A dewatering scraper for a papermaking machine as described in claim 1, characterized in that: The scraper assembly (5) includes a scraper body (501), and a mounting cylinder (502) is installed on the top of the scraper body (501). The side wall of the mounting cylinder (502) is provided with a second threaded hole (503). The mounting cylinder (502) and the mounting groove (405) cooperate with each other.

6. A dewatering scraper for a papermaking machine as described in claim 1, characterized in that: The installation and disassembly mechanism (6) includes a bolt rod body (601), which is threadedly connected to the inside of the first threaded hole (406) and the second threaded hole (503).

7. A dewatering scraper for a papermaking machine as described in claim 1, characterized in that: The elastic component (7) includes a welding sleeve (701), which is fixedly installed at the bottom of the rectangular frame (1). The inner wall of the welding sleeve (701) is equipped with a guide rail (702), and the guide rail (702) is provided with a guide block (703). The side wall of the guide block (703) is equipped with a vertical rod (704), and the bottom end of the vertical rod (704) is fixedly connected to the top end of the lifting plate (4). The top end of the inside of the welding sleeve (701) is equipped with a high-pressure spring body (705), and the bottom end of the high-pressure spring body (705) is fixedly connected to the top end of the vertical rod (704).

8. A dewatering scraper for a papermaking machine as described in claim 1, characterized in that: The scraper assembly (5) is semi-circular in shape.

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