Water pan scraper for dry net tension roller

Abstract

This application discloses a scraper for a water collection tray of a dry web tensioning roller, comprising two scraper supports disposed opposite to each other on a frame and a scraper body rotatably disposed between the two scraper supports. The scraper body is a groove-shaped structure with an open top, and its two ends are sealed by sealing plates. A first mounting plate and a second mounting plate are respectively provided on both sides of the open end of the scraper body. A first scraper blade is connected to the first mounting plate by an airbag clamp, and a second scraper blade is connected to the second mounting plate by a water-blocking strip. A drain pipe communicating with the interior of the scraper body is provided at the bottom of the scraper body. This scraper for a water collection tray of a dry web tensioning roller has a simple structure and is used for surface cleaning of the dry web tensioning roller. The cleaned dirt is discharged through the drain pipe of the scraper body, which is convenient for collection and centralized treatment.

Description

Technical Field

[0001] This application relates to a scraper, and more particularly to a water receiving tray scraper for a dry wire tensioning roller. Background Technology

[0002] With the continuous improvement of papermaking technology and the increasing speed of paper machines, the requirements for paper quality are also constantly rising. The tension rolls of the paper machine's dry wire primarily ensure production stability and product quality by adjusting tension. Typically, a tensioner is installed in this area to achieve this function, while also performing extensive water spraying. However, in actual production, small pulp clumps, fillers, and other impurities easily adhere to the surface of the tension rolls. As these impurities gradually increase in size and clump together, they cause corrosion and detachment of the roll surface, entering the dry wire and being carried onto the paper sheet, resulting in paper defects and affecting the dry wire's lifespan. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide a scraper for a water receiving tray of a dry wire tensioning roller, so as to overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: This application discloses a water receiving tray scraper for a dry wire tensioning roller, including two scraper supports disposed opposite to each other on the frame and a scraper body rotatably disposed between the two scraper supports. The scraper body is a groove-shaped structure with an open top, and its two ends are sealed by sealing plates. A first mounting plate and a second mounting plate are respectively disposed on both sides of the open end of the scraper body. A first scraper blade is connected to the first mounting plate by an airbag clamp, and a second scraper blade is connected to the second mounting plate by a water-blocking strip. A drain pipe communicating with the interior of the scraper body is disposed at the bottom of the scraper body.

[0005] Furthermore, in the aforementioned dry web tensioning roller water receiving tray scraper, the outer wall of the sealing plate is provided with a rotating shaft, which is rotatably connected to the corresponding scraper bracket via a bearing seat.

[0006] Furthermore, in the above-mentioned dry web tensioning roller water receiving tray scraper, the scraper support includes a base plate installed on the frame and a horizontal plate vertically connected to the base plate. The horizontal plate is provided with a first oblong hole for installing the bearing seat, and the top of the horizontal plate is provided with a stiffening plate connected to the base plate.

[0007] Furthermore, in the aforementioned dry web tensioning roller water receiving tray scraper, an adjusting block is provided at the end of the horizontal plate away from the bottom plate, and a stud connected to the adjusting block is provided on the outer wall of the bearing seat.

[0008] Furthermore, in the aforementioned dry web tensioning roller water receiving tray scraper, the bottom end of the adjusting block is provided with a U-shaped groove, the stud is slidably disposed in the U-shaped groove, and its surface is provided with two adjusting nuts, the two adjusting nuts being respectively disposed on both sides of the adjusting block.

[0009] Furthermore, in the aforementioned dry web tensioning roller water receiving tray scraper, the scraper bracket is connected to the scraper body via an adjusting shaft. The adjusting shaft includes a double-ended bolt, and the two ends of the double-ended bolt are respectively connected to the scraper bracket and the scraper body via rod end spherical bearings.

[0010] Furthermore, in the aforementioned dry web tensioning roller water receiving tray scraper, the end of the first mounting plate opposite to the airbag clamp extends into the scraper body.

[0011] Furthermore, in the aforementioned dry web tensioning roller water receiving tray scraper, the second mounting plate is integrally formed with the scraper body.

[0012] Furthermore, in the aforementioned dry web tensioning roller water receiving tray scraper, the water-blocking strip is provided with a second oblong hole for mounting it to the second mounting plate.

[0013] Furthermore, in the aforementioned dry web tensioning roller water receiving tray scraper, the scraper body is provided with several support columns.

[0014] Compared with the prior art, the scraper for the dry wire tension roller of this utility model has a simple structure. It is used for surface cleaning of the dry wire tension roller, which can effectively reduce paper defects. The cleaned dirt is discharged through the drain pipe of the scraper body, which is convenient for collection and centralized treatment. The air-bag type clamp has stable line pressure, improves the cleaning effect, and facilitates the replacement of scraper blades. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 The diagram shown is a structural schematic of the scraper for the water receiving tray of the dry net tensioning roller in a specific embodiment of this utility model.

[0016] Figure 2 The diagram shown is a schematic diagram of the bearing housing installation in a specific embodiment of this utility model.

[0017] Figure 3 The diagram shown is a schematic diagram of the installation of the adjusting shaft in a specific embodiment of this utility model.

[0018] Figure 4 The diagram shown is a schematic diagram of the installation of the water-blocking strip in a specific embodiment of this utility model.

[0019] Figure 5 The diagram shown is a structural schematic of the scraper body in a specific embodiment of this utility model. Detailed Implementation

[0020] The technical solutions of the present utility model will be described in detail below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Combination Figures 1 to 5 As shown, a water receiving tray scraper for a dry web tensioning roller includes two scraper supports 1 disposed opposite to each other on the frame and a scraper body 2 rotatably disposed between the two scraper supports 1. The scraper body 2 is a groove-shaped structure with an open top, and its two ends are sealed by sealing plates 21 respectively. A first mounting plate 22 and a second mounting plate are respectively provided on both sides of the open end of the scraper body 2. The first mounting plate 22 is connected to a first scraper blade 4 by an airbag clamp 3, and the second mounting plate is connected to a second scraper blade 6 by a water-blocking strip 5. A drain pipe 23 communicating with its interior is provided at the bottom of the scraper body 2.

[0022] In this technical solution, the bottom of the doctor blade body is located at the position of the drain pipe. The doctor blade body is made of sheet metal through bending and other sheet metal processes, and its top is open. Sealing plates are sealed at both ends of the doctor blade body by welding and other methods. The drain pipe is connected to the doctor blade body by welding and other methods and communicates with the interior of the doctor blade body. The doctor blade bracket is installed on the frame of the paper machine by conventional bolts. The two ends of the doctor blade body are rotatably connected to the corresponding doctor blade brackets, so as to facilitate the adjustment of the position of the first doctor blade, so that its blade edge is in contact with the roller surface of the tension roll. When the tension roll is running, the first doctor blade plays the role of cleaning the roller surface and preventing the large accumulation of pulp clumps and other dirt, effectively reducing the corrosion of the tension roll by paper defects and dirt. The cleaned dirt enters the doctor blade body and is discharged along the drain pipe for easy collection and centralized treatment. The second doctor blade installed by the water-blocking strip prevents dirt from splashing. The air-bag type clamp can directly use the existing structure, which has stable line pressure, improves the cleaning effect, and facilitates the replacement of doctor blades.

[0023] For example, see Figures 1 to 5 As shown, the outer wall of the sealing plate 21 is provided with a rotating shaft 24, which is rotatably connected to the corresponding scraper bracket 1 through the bearing seat 7.

[0024] In this technical solution, the rotating shaft is a conventional T-shaped shaft or similar structure, and is bolted to the outside of the sealing plate (the side away from the scraper body). The end of the rotating shaft away from the scraper body is inserted into the inner ring of the bearing housing, thereby rotatably connecting to the scraper bracket.

[0025] For example, see Figures 1 to 5 As shown, the scraper bracket 1 includes a base plate 11 mounted on the frame and a horizontal plate 12 vertically connected to the base plate 11. The horizontal plate 12 has a first oblong hole for mounting the bearing seat 7, and the top of the horizontal plate 12 has a stiffening plate 13 connected to the base plate 11.

[0026] In this technical solution, the base plate, cross plate, and stiffening plate are all conventional plate structures, which are spliced ​​together by welding and other methods. The base plate is installed on the frame of the paper machine by conventional bolts, conventional bolts are installed in the first oblong hole of the cross plate, and the bearing seat is installed therein. The stiffening plate is used to strengthen the overall strength of the doctor blade support.

[0027] For example, see Figures 1 to 5 As shown, an adjusting block 14 is provided at one end of the horizontal plate 12 away from the bottom plate 11, and a stud 71 connected to the adjusting block 14 is provided on the outer wall of the bearing seat 7.

[0028] In this technical solution, the scraper body is relatively heavy and cannot be installed in one step. The position of the scraper body is adjusted by adjusting the position of the bearing seat through studs and adjusting blocks.

[0029] For example, see Figures 1 to 5 As shown, the bottom end of the adjusting block 14 is provided with a U-shaped groove, the stud 71 is slidably disposed in the U-shaped groove, and two adjusting nuts 72 are provided on its surface, which are respectively disposed on both sides of the adjusting block 14.

[0030] In this technical solution, the bottom end of the adjusting block is provided with an open U-shaped groove. When the bearing seat is installed on the scraper bracket together with the scraper body, the stud can be inserted from the open end of the U-shaped groove, which is convenient for installation. After the bearing seat is connected to the first oblong hole of the horizontal plate by bolts, the position of the bearing seat is adjusted by the interaction of the two adjusting nuts with the adjusting block. After the adjustment is completed, the bolt in the first oblong hole is tightened and the two adjusting nuts are tightened to fix the bearing seat. In the actual adjustment process, if you want to adjust the bearing seat away from the bottom plate, loosen the adjusting nut close to the bottom plate and rotate the adjusting nut away from the bottom plate. The reaction force of the adjusting nut and the adjusting block will pull the stud, that is, pull the bearing seat away from the bottom plate. Conversely, adjust the adjusting nut close to the bottom plate.

[0031] For example, see Figures 1 to 5As shown, the scraper bracket 1 is connected to the scraper body 2 via an adjusting shaft 8. The adjusting shaft 8 includes a double-ended bolt, and the two ends of the double-ended bolt are connected to the scraper bracket 1 and the scraper body 2 respectively via rod end spherical bearings.

[0032] In this technical solution, both the double-ended bolt and the rod end spherical bearing are existing structures. A first connecting post is provided on the side of the stiffener plate near the scraper body by welding or other means. A second connecting post is provided on the outer side wall of the scraper body near the second mounting plate by welding or other means. The two rod end spherical bearings are respectively connected to the corresponding first and second connecting posts by conventional bolts or pins. Thus, the installation angle of the scraper body can be adjusted by adjusting the length of the adjusting shaft to ensure contact between the first scraper and the tension roller surface.

[0033] For example, see Figures 1 to 5 As shown, the first mounting plate 22 extends into the scraper body 2 from one end away from the airbag clamp 3.

[0034] In this technical solution, the first mounting plate is fixed to the open end of one side of the scraper body by welding or other means, and extends along the length of the scraper body. The welding angle of the first mounting plate can be determined according to the actual working conditions of the tension roller. The end of the first mounting plate away from the airbag clamp extends into the scraper body, introducing the scraped dirt into the scraper body.

[0035] For example, see Figures 1 to 5 As shown, the second mounting plate is integrally formed with the scraper body 2.

[0036] In this technical solution, the corresponding sidewall of the scraper body extends and protrudes from the sealing plate to form a second mounting plate for mounting the second scraper.

[0037] For example, see Figures 1 to 5 As shown, the water-blocking strip 5 is provided with a second oblong hole 51 for mounting it to the second mounting plate.

[0038] In this technical solution, a bolt is provided in the second oblong hole for installing the water-blocking strip onto the second mounting plate, thereby allowing the installation of the second scraper. The installation position of the water-blocking strip is adjusted through the second oblong hole, which in turn adjusts the installation position of the second scraper, thereby adjusting the relative position of the second scraper and the tension roller.

[0039] For example, see Figures 1 to 5 As shown, several support columns 25 are provided inside the scraper body 2.

[0040] In this technical solution, the support column is a conventional optical axis or round tube, which is welded to the scraper body by welding or other methods to improve the overall strength of the scraper body.

[0041] In summary, the scraper for the dry wire tension roller of this utility model has a simple structure and is used for surface cleaning of the dry wire tension roller. It can effectively reduce paper defects. The cleaned dirt is discharged through the drain pipe of the scraper body, which is convenient for collection and centralized treatment. The air-bag type clamp ensures stable line pressure, improves the cleaning effect, and facilitates the replacement of scraper blades. 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.

[0042] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A scraper for a water receiving tray of a dry wire tensioning roller, characterized in that, The device includes two scraper supports mounted opposite each other on a frame and a scraper body rotatably mounted between the two scraper supports. The scraper body is a groove-shaped structure with an open top, and its two ends are sealed by sealing plates. A first mounting plate and a second mounting plate are respectively provided on both sides of the open end of the scraper body. The first mounting plate is connected to a first scraper blade by an airbag clamp, and the second mounting plate is connected to a second scraper blade by a water-blocking strip. A drain pipe communicating with the interior of the scraper body is provided at the bottom of the scraper body.

2. The scraper for the water receiving tray of the tensioning roller of the dry wire mesh according to claim 1, characterized in that: The outer wall of the sealing plate is provided with a rotating shaft, which is rotatably connected to the corresponding scraper bracket through a bearing seat.

3. The scraper for the water receiving tray of the tensioning roller of the dry wire mesh according to claim 2, characterized in that: The scraper bracket includes a base plate mounted on the frame and a horizontal plate vertically connected to the base plate. The horizontal plate has a first oblong hole for mounting the bearing seat, and a stiffening plate connected to the base plate is provided at the top of the horizontal plate.

4. The water receiving tray scraper for the tension roller of the dry wire mesh according to claim 3, characterized in that: An adjusting block is provided at one end of the cross plate away from the base plate, and a stud connected to the adjusting block is provided on the outer wall of the bearing seat.

5. The water receiving tray scraper for the tension roller of the dry wire mesh according to claim 4, characterized in that: The bottom end of the adjusting block is provided with a U-shaped groove, the stud is slidably disposed in the U-shaped groove, and two adjusting nuts are provided on its surface, with the two adjusting nuts respectively disposed on both sides of the adjusting block.

6. The water receiving tray scraper for the tension roller of the dry wire mesh according to claim 1, characterized in that: The scraper bracket is connected to the scraper body via an adjusting shaft. The adjusting shaft includes a double-ended bolt, and the two ends of the double-ended bolt are respectively connected to the scraper bracket and the scraper body via rod end spherical bearings.

7. The water receiving tray scraper for the tension roller of the dry wire mesh according to claim 1, characterized in that: The first mounting plate extends into the scraper body from the end opposite to the airbag clamp.

8. The scraper for the water receiving tray of the tensioning roller of the dry wire mesh according to claim 1, characterized in that: The second mounting plate is integrally formed with the scraper body.

9. The water receiving tray scraper for the tension roller of the dry wire mesh according to claim 1, characterized in that: The water-blocking strip is provided with a second oblong hole for mounting it to the second mounting plate.

10. The water receiving tray scraper for the tension roller of the dry wire mesh according to claim 1, characterized in that: The scraper body is provided with several support columns.

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