Parallelogram doctor blade swing mechanism

Abstract

The utility model relates to scraper structure technical field, and disclose parallelogram scraper swing mechanism, including correction subassembly, connecting component, cleaning knife, fixed component, the correction subassembly includes base, the outer wall fixed assembly of base has the mounting seat, the outer wall fixed assembly of base has the locating rod, the outer wall rotationally connected with correction roll of locating rod, the outer wall of correction roll is equipped with fixed plate, the connecting component includes connecting seat, the outer wall rotationally connected with connecting plate of connecting seat, the side wall away from fixed plate of connecting plate is equipped with through slot. This parallelogram scraper swing mechanism, through setting correction subassembly, base, mounting seat, correction roll, fixed plate, linkage rod structure, make this swing mechanism in the use process, utilize the rotation of fixed plate and let linkage rod drag connecting plate rotate together, thereby guarantee that cleaning knife is always pasted the outer wall of correction roll in the rotating process, and further guarantee the cleaning effect of scraper to correction roll.

Description

Technical Field

[0001] This utility model relates to the field of scraper structure technology, specifically a parallelogram scraper swing mechanism. Background Technology

[0002] Doctor blades are crucial auxiliary equipment on paper machines, used in various parts including the wet section, press section, dryer section, and winding section. Their core function is to clean the roll surfaces, ensuring paper quality and maintaining stable production.

[0003] The correction roll, also known as the alignment roll, is a crucial functional roll in papermaking equipment. Like other rolls, it requires cleaning of its surface. During operation, the correction roll swings or rotates around the center point of the corrector to achieve the correction effect. However, the corrector also accumulates impurities and paper scraps during operation, which need to be cleaned with a scraper to ensure the best working results.

[0004] The existing doctor blade rotates to the upper right as it swings. After the rotation, the positions of the doctor blade and the correction roller on the drive side remain relatively unchanged. However, the center position of the doctor blade on the operating side swings and rotates to the upper right, raising it. On the other hand, the roller surface rotates to the lower right as it swings and lowers. This causes the doctor blade on the swing side to move away from the roller surface of the correction roller, resulting in poor adhesion between the doctor blade and the roller surface, which affects the cleaning effect of the roller surface and thus affects the paper quality and stable production. Summary of the Invention

[0005] In view of the shortcomings of the prior art, this utility model provides a parallelogram scraper swing mechanism to solve the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a parallelogram scraper swing mechanism, including a correction component, a connecting component, a cleaning blade, and a fixing component. The correction component includes a base, an mounting seat is fixedly mounted on the outer wall of the base, a positioning rod is fixedly mounted on the outer wall of the base, a correction roller is rotatably connected to the outer wall of the positioning rod, and a fixing plate is provided on the outer wall of the correction roller. The connecting assembly includes a connecting seat, a connecting plate rotatably connected to the outer wall of the connecting seat, a through groove on the side wall of the connecting plate away from the fixed plate, an installation groove on the outer wall of the connecting plate, and a connecting groove on the side wall of the connecting plate with the installation groove. The fixing assembly includes a fixing shell, an inner wall of which is provided with a mounting plate, fixing holes on both sides of the fixing shell and the mounting plate, a receiving hole on the inner wall of the fixing hole, a fixing bolt threadedly connected to the inner wall of the fixing hole, a pressing plate tightly fitted to the outer wall of the connecting plate, a fixing bolt threadedly connected to the inner wall of the mounting groove on the outer wall of the pressing plate, a bearing fixedly mounted on the outer wall of the mounting plate, a fixing screw fixedly mounted on the outer wall of the bearing, a fixing nut threadedly connected to the outer wall of the fixing screw, and a connecting rod rotatably connected to the outer wall of the bearing.

[0007] Through the above technical solution, by setting the correction component, connecting component, and cleaning blade structure, the swing mechanism ensures that during operation, when the fixed plate rotates to perform cleaning, the rotation of the fixed plate and the correction roller will pull the connecting plate and the cleaning blade to rotate synchronously through the linkage rod. This prevents the cleaning blade from shifting to the lower right during rotation and from shifting to the lower left during reset, thus ensuring that the cleaning blade always rotates synchronously with the correction roller and maintains its original state, thereby improving the cleaning effect of the cleaning blade on the correction roller.

[0008] Preferably, a fixed seat is fixedly mounted on the outer wall of the fixed plate, and an electric telescopic rod is fixedly mounted on the outer wall of the fixed seat. The output shaft of the electric telescopic rod is fixedly mounted on the outer wall of the cleaning knife. The outer wall of the cleaning knife is rotatably connected to the outer wall of the connecting plate, and the side of the cleaning knife near the fixed plate overlaps with the outer wall of the correction roller.

[0009] Through the above technical solution, the cleaning blade structure can be used to clean the correction roller, thereby ensuring that the correction roller can flatten the paper during the papermaking process, ensuring a smooth paper surface, and thus improving the paper production efficiency of the papermaking machine using this oscillating mechanism.

[0010] Preferably, the connecting rod is connected to the fixing screw via a fixing nut, and the end of the connecting rod away from the connecting plate is rotatably connected to the outer wall of the fixing plate.

[0011] Through the above technical solution, the structure of the connecting plate and the correction roller is designed so that the synchronous swing of the connecting plate and the fixed plate during operation can ensure the synchronicity of the cleaning knife and the correction roller, thereby maintaining the fit between the cleaning knife and the correction roller and ensuring the normal operation of the swing mechanism.

[0012] Preferably, the distance from the center point of the positioning rod to the center point of the connecting seat is equal to the length of the connecting rod, and the two are parallel to each other.

[0013] Through the above technical solution, the linkage rod, positioning rod, and connecting seat structure are designed so that after installation, the mechanism can not only connect the fixed plate and the connecting plate through the linkage rod, but also facilitate the user to determine the installation position of the connecting seat by the length of the linkage rod when installing the swing mechanism. This makes it easier for the user to position and install the components of the swing mechanism, thereby improving the user's work efficiency.

[0014] Preferably, the shape of the through groove is adapted to the shape of the fixed shell, and the fixed shell is fixedly connected to the connecting plate through a pressing plate.

[0015] Through the above technical solution, the fixed shell, connecting plate and pressing plate structure allows the user to remove the fixed shell during use, making it convenient to replace the mounting plate and bearing after long-term use. This ensures that the entire connecting plate or fixed component does not need to be discarded when the component is damaged, achieving the effect of recyclable parts and thus improving the practicality of the swing mechanism.

[0016] Preferably, the mounting plate is fixedly connected to the fixed shell by two fixing bolts, and both fixing bolts retract into a storage hole after being tightened.

[0017] With the above technical solution and the set storage hole structure, when the user installs the mounting plate, he first tightens the fixing bolt, which retracts into the storage hole, thereby ensuring that the entire mounting plate can be sent into the fixed shell to complete the assembly operation, and thus ensuring the normal installation of the swing mechanism.

[0018] Compared with the prior art, the present invention provides a parallelogram-shaped scraper swing mechanism, which has the following advantages: 1. The parallelogram scraper swing mechanism, through the setting of the correction component, base, mounting seat, correction roller, fixed plate, and linkage rod structure, enables the swing mechanism to rotate during use by using the rotation of the fixed plate to cause the linkage rod to pull the connecting plate to rotate together, thereby ensuring that the cleaning blade always keeps in contact with the outer wall of the correction roller during the rotation, thus ensuring the cleaning effect of the scraper on the correction roller; 2. This parallelogram scraper swing mechanism, through its fixed components, fixed housing, mounting plate, bearing, fixed screw, fixed nut, fixed bolt one, and connecting rod structure, allows the user to install the connecting rod onto the swing assembly using the fixed nut and fixed screw. Furthermore, the user can disassemble and assemble the pressing plate, fixed housing, and fixed plate using fixed bolt one and fixed bolt two. This facilitates the user's disassembly, assembly, and maintenance of the components in the swing assembly without requiring the replacement of the entire mechanism, reducing material waste and improving the practicality of the swing assembly. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a partial cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the exploded structure of the fixing component of this utility model.

[0020] The components are as follows: 1. Correction assembly; 101. Base; 102. Mounting seat; 103. Correction roller; 104. Fixing plate; 105. Positioning rod; 2. Connecting assembly; 201. Connecting seat; 202. Connecting plate; 203. Through groove; 204. Mounting groove; 205. Connecting groove; 3. Cleaning knife; 4. Fixing assembly; 401. Fixing shell; 402. Mounting plate; 403. Bearing; 404. Fixing screw; 405. Fixing nut; 406. Fixing bolt one; 407. Pressing plate; 408. Fixing bolt two; 409. Fixing hole; 410. Storage hole; 411. Linkage rod. Detailed Implementation

[0021] 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.

[0022] like Figure 1-4 As shown, the parallelogram scraper swing mechanism includes a correction component 1, a connecting component 2, a cleaning blade 3, and a fixing component 4. The correction component 1 includes a base 101, a mounting seat 102 is fixedly mounted on the outer wall of the base 101, a positioning rod 105 is fixedly mounted on the outer wall of the base 101, a correction roller 103 is rotatably connected to the outer wall of the positioning rod 105, and a fixing plate 104 is provided on the outer wall of the correction roller 103. The connecting component 2 includes a connecting seat 201, a connecting plate 202 is rotatably connected to the outer wall of the connecting seat 201, a through groove 203 is provided on the side wall of the connecting plate 202 away from the fixed plate 104, an installation groove 204 is provided on the outer wall of the connecting plate 202, and a connecting groove 205 is also provided on the side wall of the connecting plate 202 where the installation groove 204 is provided. The fixing component 4 includes a fixing shell 401, an mounting plate 402 on the inner wall of the fixing shell 401, fixing holes 409 on both sides of the fixing shell 401 and the mounting plate 402, a receiving hole 410 on the inner wall of the fixing hole 409, a fixing bolt 406 threadedly connected to the inner wall of the fixing hole 409, a pressing plate 407 tightly fitted to the outer wall of the connecting plate 202, a fixing bolt 408 threadedly connected to the inner wall of the mounting groove 204 on the outer wall of the pressing plate 407, a bearing 403 fixedly mounted on the outer wall of the mounting plate 402, a fixing screw 404 fixedly mounted on the outer wall of the bearing 403, a fixing nut 405 threadedly connected to the outer wall of the fixing screw 404, and a connecting rod 411 rotatably connected to the outer wall of the bearing 403.

[0023] The advantage is that, through the structure of the correction component 1, the connecting component 2, and the cleaning blade 3, the oscillating mechanism ensures that during operation, when the fixed plate 104 rotates to perform cleaning, the rotation of the fixed plate 104 and the correction roller 103 will pull the connecting plate 202 and the cleaning blade 3 to rotate synchronously through the linkage rod 411. This prevents the cleaning blade 3 from shifting to the lower right during rotation and from shifting to the lower left during reset. This ensures that the cleaning blade 3 always rotates synchronously with the correction roller 103 and maintains its original state, thus improving the cleaning effect of the cleaning blade 3 on the correction roller 103.

[0024] Specifically: a fixed seat is fixedly mounted on the outer wall of the fixed plate 104, an electric telescopic rod is fixedly mounted on the outer wall of the fixed seat, and the output shaft of the electric telescopic rod is fixedly mounted on the outer wall of the cleaning knife 3. The outer wall of the cleaning knife 3 is rotatably connected to the outer wall of the connecting plate 202, and the side of the cleaning knife 3 near the fixed plate 104 overlaps with the outer wall of the correction roller 103.

[0025] The advantage is that, through the structure of the cleaning blade 3, the correction roller 103 can be cleaned, thereby ensuring that the correction roller 103 can flatten the paper during the operation of the paper machine, ensuring a smooth paper surface, and thus improving the paper production efficiency of the paper machine using this oscillating mechanism.

[0026] Specifically: the linkage rod 411 is connected to the fixing screw 404 through the fixing nut 405, and the end of the linkage rod 411 away from the connecting plate 202 is rotatably connected to the outer wall of the fixing plate 104.

[0027] The advantage is that, through the structure of the connecting plate 202 and the correction roller 103, the synchronous swing of the connecting plate 202 and the fixed plate 104 during operation ensures the synchronicity between the cleaning blade 3 and the correction roller 103, thereby maintaining the fit between the cleaning blade 3 and the correction roller 103 and ensuring the normal operation of the swing mechanism.

[0028] Specifically: the distance from the center point of the positioning rod 105 to the center point of the connecting seat 201 is equal to the length of the linkage rod 411, and the two are parallel to each other.

[0029] The advantage is that, through the structure of the connecting rod 411, the positioning rod 105, and the connecting seat 201, after installation, the mechanism can not only connect the fixing plate 104 to the connecting plate 202 through the connecting rod 411, but also facilitate the user to determine the installation position of the connecting seat 201 by the length of the connecting rod 411 when installing the swing mechanism. This makes it easier for the user to position and install the components of the swing mechanism, thereby improving the user's work efficiency.

[0030] Specifically: the shape of the through groove 203 is adapted to the shape of the fixed shell 401, and the fixed shell 401 is fixedly connected to the connecting plate 202 through the pressing plate 407.

[0031] The advantage is that, through the structure of the fixed shell 401, the connecting plate 202, and the pressing plate 407, the user can remove the fixed shell 401 during use, which makes it convenient for the user to replace the mounting plate 402 and the bearing 403 after long-term use. This ensures that the entire connecting plate 202 or the fixed component 4 does not need to be discarded when the component is damaged, achieving the effect of recyclable parts and thus improving the practicality of the swing mechanism.

[0032] Specifically: The mounting plate 402 is fixedly connected to the fixed shell 401 by two fixing bolts 406, and both fixing bolts 406 are tightened and then retracted into a storage hole 410.

[0033] The advantage is that, through the structure of the storage hole 410, when the user installs the mounting plate 402, he first tightens the fixing bolt 406 so that the fixing bolt 406 retracts into the storage hole 410, thereby ensuring that the entire mounting plate 402 can be sent into the fixed shell 401 to complete the assembly operation, thus ensuring the normal installation of the swing mechanism.

[0034] Working principle: First, when assembling the swing mechanism, the user can place the mounting plate 402 into the fixed shell 401, and then tighten the fixing bolt 406 so that the fixing bolt 406 retracts into the receiving hole 410, thereby avoiding the fixing bolt 406 affecting the connection between the mounting plate 402 and the fixed shell 401, which facilitates the user's assembly of the swing mechanism. After assembly, the fixed shell 401 and the pressing plate 407 are fixed to the connecting plate 202 by the fixing bolt 408. Then, the end of the connecting rod 411 away from the connecting plate 202 is connected to the outer wall of the fixed plate 104. The connection allows for the disassembly and assembly of all components of the swing mechanism, facilitating maintenance and replacement of individual components, reducing material waste, and improving the practicality of the swing mechanism. During operation, the rotation of the fixed plate 104 and the correction roller 103 drives the connecting plate 202 to rotate synchronously via the linkage rod 411, ensuring that the cleaning blade 3 remains in contact with the outer wall of the correction roller 103. This prevents the cleaning blade 3 from shifting its contact position with the correction roller 103 during rotation, thus ensuring the cleaning effect of the cleaning blade 3 on the outer wall of the correction roller 103.

[0035] 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 parallelogram-shaped scraper swing mechanism, comprising a correction component (1), a connecting component (2), a cleaning blade (3), and a fixing component (4), characterized in that: The correction assembly (1) includes a base (101), an mounting seat (102) is fixedly mounted on the outer wall of the base (101), a positioning rod (105) is fixedly mounted on the outer wall of the base (101), a correction roller (103) is rotatably connected to the outer wall of the positioning rod (105), and a fixing plate (104) is provided on the outer wall of the correction roller (103). The connecting assembly (2) includes a connecting seat (201), and a connecting plate (202) is rotatably connected to the outer wall of the connecting seat (201). A through groove (203) is provided on the side wall of the connecting plate (202) away from the fixed plate (104). An installation groove (204) is provided on the outer wall of the connecting plate (202). A connecting groove (205) is also provided on the side wall of the connecting plate (202) where the installation groove (204) is provided. The fixing component (4) includes a fixing shell (401), an mounting plate (402) is provided on the inner wall of the fixing shell (401), fixing holes (409) are provided on both sides of the fixing shell (401) and the mounting plate (402), a receiving hole (410) is provided on the inner wall of the fixing hole (409), a fixing bolt (406) is threadedly connected to the inner wall of the fixing hole (409), a pressing plate (407) is tightly fitted to the outer wall of the connecting plate (202), a fixing bolt (408) is provided on the outer wall of the pressing plate (407) and threadedly connected to the inner wall of the mounting groove (204), a bearing (403) is fixedly assembled on the outer wall of the mounting plate (402), a fixing screw (404) is fixedly assembled on the outer wall of the bearing (403), a fixing nut (405) is threadedly connected to the outer wall of the fixing screw (404), and a connecting rod (411) is rotatably connected to the outer wall of the bearing (403).

2. The parallelogram scraper swing mechanism according to claim 1, characterized in that: The outer wall of the fixed plate (104) is fixedly fitted with a fixed seat, the outer wall of the fixed seat is fixedly fitted with an electric telescopic rod, and the output shaft of the electric telescopic rod is fixedly fitted with the outer wall of the cleaning knife (3). The outer wall of the cleaning knife (3) is rotatably connected to the outer wall of the connecting plate (202), and the side of the cleaning knife (3) near the fixed plate (104) overlaps with the outer wall of the correction roller (103).

3. The parallelogram scraper swing mechanism according to claim 1, characterized in that: The connecting rod (411) is connected to the fixing screw (404) through the fixing nut (405), and the end of the connecting rod (411) away from the connecting plate (202) is rotatably connected to the outer wall of the fixing plate (104).

4. The parallelogram scraper swing mechanism according to claim 1, characterized in that: The distance from the center point of the positioning rod (105) to the center point of the connecting seat (201) is equal to the length of the linkage rod (411), and the two are parallel to each other.

5. The parallelogram scraper swing mechanism according to claim 1, characterized in that: The shape of the through groove (203) is adapted to the shape of the fixed shell (401), and the fixed shell (401) is fixedly connected to the connecting plate (202) through the pressing plate (407).

6. The parallelogram scraper swing mechanism according to claim 1, characterized in that: The mounting plate (402) is fixedly connected to the fixed shell (401) by fixing bolts (406). There are two fixing bolts (406), and after both fixing bolts (406) are tightened, they retract into a storage hole (410).

Images