Novel cleanable papermaking headbox
By introducing an electric sliding assembly and a mechanical cleaning device into the papermaking headbox, the problem of impurities adhering to the inner wall of the headbox was solved, achieving automated cleaning and improving pulp dispersion and paper quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-31
AI Technical Summary
After prolonged use, existing papermaking headboxes will accumulate solid impurities on their inner walls, affecting the output and negatively impacting paper quality.
A novel washable papermaking headbox has been designed, employing an electric sliding assembly and mechanical components, including an agitation assembly and a brushing assembly. The inner wall of the headbox is automatically cleaned by a motor-driven agitation shaft and a roller brush.
It enables automatic cleaning of the headbox inner wall, ensuring uniform pulp dispersion and stable paper quality, and avoiding the impact of solid impurity accumulation.
Smart Images
Figure CN224063167U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to papermaking flow headbox's technical field especially a novel papermaking flow headbox that can be cleaned. BACKGROUND
[0002] Flow headbox is the key part of modern paper machine. Its structure and performance have decisive effect on the formation of paper sheet and the quality of paper, and its main function is to effectively disperse fiber, and high turbulence flow headbox can produce high strength micro turbulence, effectively disperse fiber, prevent fiber deposition and re flocculation, and effectively improve the strength of paper sheet.
[0003] The existing papermaking flow headbox will adhere to a layer of solid impurities on the inner wall of the flow headbox after long time use, which affects the discharging effect of the flow headbox and has an impact on the manufacture of paper. Therefore, the utility model provides a novel papermaking flow headbox different from the prior art to solve the above technical problems. UTILITY MODEL CONTENT
[0004] In order to improve the problem that the inner wall of the flow headbox mentioned above will adhere to a layer of solid impurities, affecting the discharging effect of the flow headbox, the utility model provides a novel papermaking flow headbox that can be cleaned.
[0005] The utility model provides a novel papermaking flow headbox that can be cleaned, which adopts the following technical scheme:
[0006] A novel papermaking flow headbox that can be cleaned, comprising a transverse plate, a flow headbox body is installed at the middle position of the upper surface of the transverse plate, an electric sliding assembly is symmetrically installed at the outer position of the upper surface of the transverse plate, an expansion frame is fixed on a plurality of electric sliding assemblies, a plurality of first position adjusting assemblies and second position adjusting assemblies are uniformly installed on the inner cavity top wall of the expansion frame, an agitating assembly is installed at the bottom end of a plurality of first position adjusting assemblies, and a brushing assembly is installed at the bottom end of a plurality of second position adjusting assemblies.
[0007] Through the above technical scheme, the pulp enters the inner cavity of the flow headbox body, the agitating assembly is driven by the first position adjusting assembly to move downward and agitate the pulp, and the brushing assembly is driven by the second position adjusting assembly and the electric sliding assembly to move downward, so that the adhering objects on the inner wall of the flow headbox body can be brushed.
[0008] Optionally, the first position adjusting assembly comprises a first electric sliding rail, the first electric sliding rail is fixed at the inner cavity top wall position of the expansion frame, a first electric sliding block is installed on the outside of the first electric sliding rail, a second cylinder frame is installed at the bottom end of the first electric sliding block, and a second telescopic cylinder is installed in the inner cavity of the second cylinder frame.
[0009] Optionally, the stirring assembly comprises a second motor frame fixed at the bottom end of the output end of the second telescopic cylinder, a second servo motor installed at the bottom of the inner cavity of the second motor frame, a second rotating shaft penetrating through the bottom end of the second motor frame and installed at the output end of the second servo motor, and a plurality of stirring shafts uniformly installed at the bottom end of the outer wall of the second rotating shaft.
[0010] By adopting the above technical scheme, the second telescopic cylinder at the corresponding position is started to extend to drive the second motor frame, the second servo motor, the second rotating shaft and the stirring shaft to move downward and extend into the inner cavity of the flow paddle box body synchronously, the second servo motor is started to drive the second rotating shaft and the plurality of stirring shafts to rotate synchronously, and the first electric sliding rail is started to drive the first electric sliding block to move horizontally, so that the paper pulp can be stirred fully.
[0011] Optionally, the second position adjusting assembly comprises a second electric sliding rail fixed at the inner cavity top wall of the expansion frame, a second electric sliding block installed at the outer portion of the second electric sliding rail, a first cylinder frame installed at the bottom end of the second electric sliding block, and a first telescopic cylinder installed at the bottom of the inner cavity of the first cylinder frame.
[0012] Optionally, the brushing assembly comprises a first motor frame fixed at the bottom end of the output end of the first telescopic cylinder, a first servo motor installed at the bottom of the inner cavity of the first motor frame, a first rotating shaft penetrating through the bottom end of the first motor frame and installed at the output end of the first servo motor, and a detachable and replaceable roller brush installed at the outer portion of the first rotating shaft.
[0013] Optionally, the electric sliding assembly comprises a third electric sliding rail fixed at the bottom end of the outer wall of the flow paddle box body, and a third electric sliding block fixed at the bottom end of the inner wall of the expansion frame and installed in the third electric sliding rail.
[0014] By adopting the above technical scheme, the first telescopic cylinder is started to extend to drive the first motor frame, the first servo motor, the first rotating shaft and the roller brush to move downward synchronously, then the first servo motor is started to drive the first rotating shaft and the roller brush to rotate, and the third electric sliding rail is started to drive the third electric sliding block to move forward and backward, so that the expansion frame can be driven to move synchronously, and in the movement process of the expansion frame, the plurality of roller brushes can be driven to move forward and backward, so that the residues adhered to the inner wall of the flow paddle box body can be brushed.
[0015] Optionally, a paper pulp inlet pipe is fixedly connected to the upper end of the outer wall of one side of the flow paddle box body, and a plurality of paper pulp outlet pipes are fixedly connected to the lower end of the outer wall of the other side of the flow paddle box body.
[0016] By adopting the above technical solution, the control valve on the pulp inlet pipe is opened, allowing the pulp to enter the inner cavity of the paddle box through the pulp inlet pipe, and the control valve on the pulp outlet pipe is opened, allowing the pulp to flow out evenly through the pulp outlet pipe.
[0017] Optionally, multiple sets of rollers are installed at the outer periphery of the lower surface of the transverse plate.
[0018] By adopting the above technical solution, the position of this new type of washable papermaking headbox can be moved by multiple sets of rollers.
[0019] In summary, this utility model has at least one of the following beneficial effects:
[0020] The second telescopic cylinder at the corresponding position is activated to extend and drive the second motor frame, the second servo motor, the second rotating shaft and the agitating shaft to move downward synchronously to the appropriate position. The second servo motor is activated to drive the second rotating shaft and the agitating shaft to rotate synchronously. The first electric slide rail is activated to drive the first electric slider to move horizontally, thereby fully agitating the pulp.
[0021] The third electric slide rail is activated to move the third electric slider and the extension frame back and forth. The first telescopic cylinder is activated to extend and move the first motor frame, the first servo motor, the first rotating shaft and the roller brush down synchronously. Then the first servo motor is activated to rotate the first rotating shaft and the roller brush. Multiple sets of second electric slide rails are activated and the second electric sliders are used to move the first rotating shaft and the roller brush left and right, so as to clean the residue adhering to the inner wall of the propeller box. Attached Figure Description
[0022] Figure 1 This is a frontal sectional view of the present invention.
[0023] Figure 2 This is a schematic diagram of the left sectional view of the present invention;
[0024] Figure 3 This is a top sectional view of the propeller box structure of this utility model. Figure 1 ;
[0025] Figure 4 This is a top sectional view of the propeller box structure of this utility model. Figure 2 .
[0026] In the diagram: 1. First telescopic cylinder; 2. First cylinder frame; 3. First motor frame; 4. First servo motor; 5. Pulp inlet pipe; 6. First rotating shaft; 7. Roller brush; 8. Agitator shaft; 9. Second rotating shaft; 10. Horizontal plate; 11. Roller; 12. Pulp outlet pipe; 13. Paddle box; 14. Extension frame; 15. First electric slide rail; 16. Second cylinder frame; 17. First electric slider; 18. Second electric slide rail; 19. Second electric slider; 20. Second telescopic cylinder; 21. Second motor frame; 22. Second servo motor; 23. Third electric slide rail; 24. Third electric slider. Detailed Implementation
[0027] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail below.
[0028] Please refer to the attached diagram in the instruction manual. Figure 1 and 2 One embodiment of this utility model provides a novel washable papermaking headbox, comprising a transverse plate 10, a headbox body 13 installed at the middle position of the upper surface of the transverse plate 10, the upper surface of the headbox body 13 being open, the cross-sectional end of the headbox body 13 being arc-shaped, and electrically sliding components symmetrically installed on the outer side of the upper surface of the transverse plate 10. The electrically sliding components include a third electrically sliding rail 23, which is fixed to the bottom position of the outer wall of the headbox body 13, and a third electrically sliding block 24 is installed inside the third electrically sliding rail 23.
[0029] Please refer to the attached diagram in the instruction manual. Figure 1 and 2 An extension frame 14 is fixed to the outer wall of multiple sets of third electric sliders 24. The lateral longitudinal section of the extension frame 14 is set as an inverted U-shape. A pulp inlet pipe 5 is fixedly connected to the upper end of one side of the outer wall of the paddle box 13. Multiple sets of pulp outlet pipes 12 are fixedly connected to the lower end of the other side of the outer wall of the paddle box 13. Control valves are installed on the outside of both the pulp inlet pipe 5 and the pulp outlet pipe 12.
[0030] Open the control valve on the pulp inlet pipe 5 and allow the pulp to enter the inner cavity of the paddle box 13 through the pulp inlet pipe 5. Open the control valve on the pulp outlet pipe 12 and allow the pulp to flow out evenly through the pulp outlet pipe 12.
[0031] Please refer to the attached diagram in the instruction manual. Figure 1 and 2Multiple sets of first position adjustment components are evenly installed on the top wall of the inner cavity of the extension frame 14. The first position adjustment components include a first electric slide rail 15, which is fixed to the top wall of the inner cavity of the extension frame 14. A first electric slider 17 is installed on the outside of the first electric slide rail 15. A second cylinder frame 16 is installed at the bottom of the first electric slider 17. A second telescopic cylinder 20 is installed in the inner cavity of the second cylinder frame 16.
[0032] Please refer to the attached diagram in the instruction manual. Figure 1 , 2 3 and 4, the bottom of the output shaft of the multiple sets of second telescopic cylinders 20 is equipped with a stirring component. The stirring component includes a second motor frame 21. The second motor frame 21 is fixed at the bottom of the output end of the second telescopic cylinder 20. A second servo motor 22 is installed at the bottom of the inner cavity of the second motor frame 21. A second rotating shaft 9 that passes through the bottom of the second motor frame 21 is installed at the output end of the second servo motor 22. Multiple sets of stirring shafts 8 are evenly installed at the bottom of the outer wall of the second rotating shaft 9.
[0033] The second telescopic cylinder 20 at the corresponding position is activated to extend and drive the second motor frame 21, the second servo motor 22, the second rotating shaft 9 and the agitator shaft 8 to move downward synchronously and extend into the inner cavity of the paddle box 13. The second servo motor 22 is activated to drive the second rotating shaft 9 and multiple agitator shafts 8 to rotate synchronously. The first electric slide rail 15 is activated to drive the first electric slider 17 to move horizontally, thereby fully agitating the pulp.
[0034] Please refer to the attached diagram in the instruction manual. Figure 1 and 2 Multiple sets of second position adjustment components are evenly installed on the top wall of the inner cavity of the extension frame 14. The second position adjustment components include a second electric slide rail 18, which is fixed to the top wall of the inner cavity of the extension frame 14. A second electric slider 19 is installed on the outside of the second electric slide rail 18. A first cylinder frame 2 is installed at the bottom of the second electric slider 19. A first telescopic cylinder 1 is installed at the bottom of the inner cavity of the first cylinder frame 2.
[0035] Please refer to the attached diagram in the instruction manual. Figure 1 , 2 3 and 4, a brushing assembly is installed at the bottom of the output shaft of the multiple sets of first telescopic cylinders 1. The brushing assembly includes a first motor frame 3, which is fixed at the bottom of the output end of the first telescopic cylinder 1. A first servo motor 4 is installed at the bottom of the inner cavity of the first motor frame 3. A first rotating shaft 6 that passes through the bottom of the first motor frame 3 is installed at the output end of the first servo motor 4. A detachable and replaceable roller brush 7 is installed on the outside of the first rotating shaft 6. The radius of the roller brush 7 is the same as the radius of the arc structure at the end of the propeller box 13.
[0036] The first telescopic cylinder 1 is activated to extend, causing the first motor frame 3, the first servo motor 4, the first rotating shaft 6, and the roller brush 7 to move downwards synchronously. Then, all the first servo motors 4 are activated to rotate the first rotating shaft 6 and the roller brush 7. Multiple sets of second electric slide rails 18 are activated, and the second electric sliders 19 are used to move the first rotating shaft 6 and the roller brush 7 horizontally left and right, thereby brushing away the residue adhering to the inner walls of the front and rear sides of the propeller box 13. Then, two sets of third electric slide rails 23 are activated to move the third electric sliders 24 back and forth, thereby driving the extension frame 14 to move synchronously. During the movement of the extension frame 14, multiple sets of roller brushes 7 can be moved back and forth, thereby brushing away the residue adhering to the inner walls of the left and right sides of the propeller box 13.
[0037] Please refer to the attached diagram in the instruction manual. Figure 1 and 2 Multiple sets of rollers 11 are installed on the outer periphery of the lower surface of the transverse plate 10. The rollers 11 are omnidirectional wheels. The position of this new type of washable papermaking headbox can be moved by the multiple sets of rollers 11.
[0038] Working principle: When using this new type of washable papermaking headbox, multiple sets of rollers 11 are used to move the new type of washable papermaking headbox to an appropriate position. Then, the control valve on the pulp inlet pipe 5 is opened, allowing the pulp to enter the inner cavity of the headbox body 13 through the pulp inlet pipe 5. The control valve on the pulp outlet pipe 12 is opened, allowing the pulp to flow out evenly through the pulp outlet pipe 12. The second telescopic cylinder 20 at the corresponding position is activated to extend and drive the second motor frame 21, the second servo motor 22, the second rotating shaft 9, and the agitator shaft 8 to move downward synchronously and extend into the inner cavity of the headbox body 13. The second servo motor 22 is activated to drive the second rotating shaft 9 and multiple sets of agitator shafts 8 to rotate synchronously. The first electric slide rail 15 is activated to drive the first electric slider 17 to move horizontally, thereby fully agitating the pulp.
[0039] After prolonged use, residue accumulates on the inner wall of the new washable papermaking headbox 13. First, all the first telescopic cylinders 1 are activated to extend, causing the first motor frame 3, first servo motor 4, first rotating shaft 6, and roller brush 7 to move downwards synchronously. Then, all the first servo motors 4 are activated to rotate the first rotating shaft 6 and roller brush 7. Multiple sets of second electric slide rails 18 are activated, and the second electric sliders 19 are used to move the first rotating shaft 6 and roller brush 7 horizontally left and right, thus cleaning the residue adhering to the inner walls of the front and rear sides of the headbox 13. Next, the second electric slide rails 18 at appropriate positions are activated, causing the multiple sets of roller brushes 7 to be staggered. Then, two sets of third electric slide rails 23 are activated, causing the third electric sliders 24 to move back and forth, thus moving the extension frame 14 synchronously. During the movement of the extension frame 14, multiple sets of roller brushes 7 can move back and forth, thus cleaning the residue adhering to the inner walls of the left and right sides of the headbox 13.
[0040] All standard parts used in this utility model document can be purchased from the market. Each component in this utility model document can be customized according to the description and drawings. The specific connection methods of each component adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, and will not be described in detail here.
[0041] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0042] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A new washable papermaking headbox comprising a transverse plate (10), characterized in that: The upper surface of the transverse plate (10) is provided with a flow paddle box (13) at the middle position, and the outer side of the upper surface of the transverse plate (10) is symmetrically provided with an electric sliding assembly, a plurality of expansion frames (14) are fixed on the electric sliding assembly, a plurality of first position adjusting assemblies and second position adjusting assemblies are uniformly arranged on the inner cavity top wall of the expansion frame (14), an agitating assembly is arranged at the bottom end of the first position adjusting assembly, and a brushing assembly is arranged at the bottom end of the second position adjusting assembly.
2. A novel cleanable papermaking headbox as claimed in claim 1, characterized in that: The first position adjusting assembly comprises a first electric sliding rail (15) fixed on the inner cavity top wall of the expansion frame (14), a first electric sliding block (17) is arranged on the outer side of the first electric sliding rail (15), a second cylinder frame (16) is arranged at the bottom end of the first electric sliding block (17), and a second telescopic cylinder (20) is arranged in the inner cavity of the second cylinder frame (16).
3. A novel cleanable papermaking headbox as claimed in claim 2, characterized in that: The agitating assembly comprises a second motor frame (21) fixed on the output end bottom of the second telescopic cylinder (20), a second servo motor (22) is arranged at the bottom position of the inner cavity of the second motor frame (21), a second rotating shaft (9) penetrating through the bottom end of the second motor frame (21) is arranged at the output end of the second servo motor (22), and a plurality of agitating shafts (8) are uniformly arranged at the bottom end of the outer wall of the second rotating shaft (9).
4. A new type of cleanable papermaking headbox according to claim 1, characterized in that: The second position adjusting assembly comprises a second electric sliding rail (18) fixed on the inner cavity top wall of the expansion frame (14), a second electric sliding block (19) is arranged on the outer side of the second electric sliding rail (18), a first cylinder frame (2) is arranged at the bottom end of the second electric sliding block (19), and a first telescopic cylinder (1) is arranged at the bottom position of the inner cavity of the first cylinder frame (2).
5. A novel cleanable papermaking headbox as claimed in claim 4, characterized in that: The brushing assembly comprises a first motor frame (3) fixed on the output end bottom of the first telescopic cylinder (1), a first servo motor (4) is arranged at the bottom position of the inner cavity of the first motor frame (3), a first rotating shaft (6) penetrating through the bottom end of the first motor frame (3) is arranged at the output end of the first servo motor (4), and a detachable and replaceable rolling brush (7) is arranged on the outer side of the first rotating shaft (6).
6. A new washable papermaking headbox according to claim 1 characterized by: A paper pulp inlet pipe (5) is fixedly connected to the upper end of the outer wall of one side of the flow paddle box (13), and a plurality of paper pulp outlet pipes (12) are fixedly connected to the lower end of the outer wall of the other side of the flow paddle box (13).
7. A new washable papermaking headbox according to claim 1 characterized by: A plurality of rollers (11) are arranged at the outer peripheral position of the lower surface of the transverse plate (10).
8. A new washable papermaking headbox according to claim 1 characterized by: The electric sliding assembly comprises a third electric sliding rail (23) fixed on the outer wall bottom end of the flow paddle box (13), and a third electric sliding block (24) fixed on the inner wall bottom end of the expansion frame (14) is arranged in the third electric sliding rail (23).