Cleaning device to prevent paper breakage due to fluctuations in the speed ratio of the sizing roller

Abstract

This invention relates to a cleaning device for preventing paper breakage due to speed ratio fluctuations in a glue applicator roller. The device includes a glue applicator roller with a spray pipe and a scraper arranged side-by-side below it. A liquid receiving tank is located below the spray pipe and scraper. The spray pipe is rotatable around its axis via an adjusting structure. The scraper's blade distance from the glue applicator roller is adjusted via a feeding structure. This invention solves the problems of traditional glue applicator roller surface cleaning, where the angle between the nozzle and the roller must be maintained during installation, leading to cumbersome operation and reduced assembly efficiency; and the problem that existing glue applicator rollers, when using a scraper, experience gaps between the scraper and the roller with use, increasing the amount of residual glue and requiring scraper replacement, further complicating operation.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, specifically to a cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the gluing roller. Background Technology

[0002] In papermaking, sizing is a crucial step, and the stable operation of the sizing rollers is essential for paper quality. When using a film transfer / immersion sizing machine, variations in the viscosity and solids content of the sizing compound during immersion processing can cause fluctuations in the sizing roller speed ratio, leading to paper breakage, reduced production efficiency, and increased production costs.

[0003] A prior art patent with publication number CN222695429U discloses a solution including a main body mechanism, a cleaning mechanism at the bottom of the main body mechanism, and adjustment mechanisms on the left and right sides of the main body mechanism. This utility model, by creating a slot under the locking block, with the shape of the slot matching the shape of the top of the assembly block, allows the assembly block to be aligned with the slot by aligning one side of the assembly block with the slot port and pushing it inward. A shaft is provided in the groove at the bottom of the assembly block, and a rotating sleeve is fitted onto the shaft surface to form a bearing structure. When the scraper connected to the bottom via a connecting plate contacts the glue roller, the scraper's arc-shaped design allows for height adjustment of the locking block by activating an electric cylinder, causing the scraper to contact the glue roller. The arc-shaped surface and the self-adjusting bearing structure ensure maximum fit between the scraper and the glue roller.

[0004] The shortcomings of existing technology have gradually become apparent with use, mainly in the following aspects:

[0005] First, when cleaning residual adhesive from the surface of the existing glue application roller, it is necessary to ensure the angle between the nozzle and the glue application roller during installation. This means that the angle needs to be found before fixing, making the operation cumbersome and reducing assembly efficiency.

[0006] Secondly, when the existing glue application roller uses a scraper to apply glue, gaps appear between the scraper and the glue application roller, increasing the amount of residual glue and requiring the scraper to be replaced, which increases the complexity of the operation.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a cleaning device to prevent paper breakage due to fluctuations in the speed ratio of the glue applicator roller. This device solves the problems of traditional technologies where cleaning residual glue from the glue applicator roller surface requires ensuring the angle between the nozzle and the roller during installation, leading to cumbersome operation and reduced assembly efficiency; and the issue that when using a scraper to scrape glue from the glue applicator roller, gaps appear between the scraper and the roller, increasing the amount of residual glue and necessitating scraper replacement, further complicating operation.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A cleaning device for preventing paper breakage due to fluctuations in the speed ratio of a gluing roller includes a gluing roller, with a spray pipe and a scraper arranged side by side below the gluing roller. A liquid receiving tank is provided below the spray pipe and the scraper. The spray pipe is rotatably mounted with its axis as the rotation center through an adjustment structure. The distance between the scraper's cutting edge and the gluing roller is adjusted by a feeding structure.

[0011] As an optimized solution, the adjustment structure includes first brackets fixedly connected to opposite sidewalls of the upper port of the liquid receiving tank, one end of the spray pipe is fixedly connected to an inlet pipe communicating with its inner cavity, and the other end of the spray pipe is fixedly connected to a support shaft. The support shaft and the inlet pipe are rotatably mounted on the two first brackets.

[0012] As an optimized solution, the inlet end of the liquid inlet pipe passes through the first bracket and is rotatably fitted with a liquid inlet elbow.

[0013] As an optimized solution, the first support is threaded with an adjusting bolt in the area on one side of the liquid inlet pipe, and the end of the adjusting bolt abuts against the end of the spray pipe.

[0014] As an optimized solution, the end of the spray pipe is provided with several adjustment grooves around the liquid inlet pipe, and the end of the adjustment bolt abuts against one of the adjustment grooves.

[0015] As an optimized solution, the feeding structure includes two side frames arranged side by side, and grooves are respectively opened on the opposite ends of the two side frames, and the opposite side walls of the scraper are slidably constrained within the two grooves.

[0016] As an optimized solution, a connecting plate is fixedly connected between the ends of the two side frames near the tail of the scraper. A feed bolt is threaded onto the connecting plate, and a clamping seat is rotatably connected to the end of the feed bolt. The clamping seat is fixed to the tail of the scraper.

[0017] As an optimized solution, the clamping seat is provided with a clamping groove, the tail of the scraper is inserted into the clamping groove, and two fastening bolts are connected in parallel with threads on the clamping seat, the ends of the fastening bolts abutting against the tail of the scraper.

[0018] As an optimized solution, a turntable is fixedly connected to the back of the clamping seat, and the end of the feed bolt is fixedly connected to the rotating end of the turntable.

[0019] As an optimized solution, a locking nut is threaded onto the feed bolt, and the locking nut abuts against the connecting plate.

[0020] As an optimized solution, a first fixing plate is fixedly connected to the lower end of the first bracket, and the first fixing plate is fixed to the upper end of the liquid receiving tank by bolts.

[0021] As an optimized solution, two second brackets are fixedly connected side by side to the lower end of the connecting plate, and a second fixing plate is fixedly connected to the lower end of the second brackets. The second fixing plate is fixed to the upper end of the liquid receiving tank by bolts.

[0022] As an optimized solution, several nozzles connected to the inner cavity of the spray pipe are fixedly attached to the outer wall of the spray pipe in parallel along the axial direction.

[0023] As an optimized solution, a drain valve is provided on the side wall near the bottom of the liquid receiving tank.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] In the papermaking process, the doctor blade is tightly attached to the surface of the sizing roller. When the sizing roller starts working, the doctor blade continuously scrapes off the sizing liquid from the surface of the sizing roller. At the same time, the water pump of the cleaning liquid spraying device is activated, and the cleaning liquid is sprayed onto the surface of the sizing roller through the nozzles on the spray pipe. The doctor blade scrapes off the sizing liquid accumulated on the surface of the sizing roller. After the scraped sizing liquid mixes with the warm water from the spray rinsing, it falls into the receiving tank below and is discharged through the drain valve for further processing.

[0026] Through the continuous operation of this device, the glue on the surface of the glue roller can be effectively cleaned, preventing speed ratio fluctuations caused by glue accumulation, thereby avoiding paper breakage and ensuring the smooth operation of papermaking.

[0027] Regularly check the wear of the scraper blade. When the blade wears to a certain extent and affects the cleaning effect, adjust the distance between the blade and the adhesive roller by rotating the feed bolt to ensure normal adhesive application.

[0028] By rotating the spray pipe onto the first bracket, the orientation of the nozzles can be adjusted without considering the direction of the nozzles during installation. After installation, the spray pipe can be rotated to adjust the direction of the nozzles, and the adjusting bolts can be tightened to lock the angle of the spray pipe, making adjustment convenient.

[0029] Through the above detailed embodiments, the device for cleaning the glue liquid on the sizing roller and preventing paper breakage due to speed ratio fluctuation of the sizing roller can operate stably and efficiently in the papermaking process, effectively solving the problems of speed ratio fluctuation and paper breakage caused by glue liquid accumulation on the sizing roller, and improving production efficiency and paper quality. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a schematic diagram of the feed bolt of this utility model;

[0033] Figure 3 This is a schematic diagram of the structure of the adjusting bolt of this utility model.

[0034] In the diagram: 1-Applying roller; 2-Spray pipe; 3-Scraper; 4-Side frame; 5-First support; 6-Second support; 7-Liquid receiving tank; 8-Drain valve; 9-Liquid inlet elbow; 10-Nozzle; 11-Slide groove; 12-Connecting plate; 13-Feed bolt; 14-Locking nut; 15-Turntable; 16-Clamping seat; 17-Fastening bolt; 18-Adjusting bolt; 19-Adjusting groove; 20-Liquid inlet pipe; 21-Support shaft. Detailed Implementation

[0035] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0036] like Figures 1 to 3 As shown, the cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the sizing roller includes a sizing roller 1. A spray pipe 2 and a scraper 3 are arranged side by side below the sizing roller 1. A liquid receiving tank 7 is provided below the spray pipe 2 and the scraper 3. The spray pipe 2 is rotated around its axis by an adjustment structure. The distance between the scraper 3 and the sizing roller 1 is adjusted by a feeding structure.

[0037] The adjustment structure includes first brackets 5 fixedly connected to the opposite side walls of the upper port of the liquid receiving tank 7, one end of the spray pipe 2 is fixedly connected to an inlet pipe 20 communicating with its inner cavity, and the other end of the spray pipe 2 is fixedly connected to a support shaft 21. The support shaft 21 and the inlet pipe 20 are rotatably mounted on the two first brackets 5.

[0038] The inlet end of the liquid inlet pipe 20 passes through the first bracket 5 and is rotatably fitted onto the liquid inlet elbow 9, which is connected to the liquid source.

[0039] The first support 5 is threadedly connected to an adjusting bolt 18 in the area on one side of the liquid inlet pipe 20, and the end of the adjusting bolt abuts against the end of the spray pipe 2.

[0040] Several adjustment grooves 19 are provided at the end of the spray pipe 2 around the liquid inlet pipe 20, and the end of the adjustment bolt 18 abuts against one of the adjustment grooves 19.

[0041] The feeding structure includes two side frames 4 arranged in parallel. Slide grooves 11 are respectively opened on the opposite ends of the two side frames 4, and the opposite side walls of the scraper 3 are slidably constrained within the two slide grooves 11.

[0042] A connecting plate 12 is fixed between the ends of the two side frames 4 near the tail of the scraper 3. A feed bolt 13 is threaded onto the connecting plate 12. A clamping seat 16 is rotatably connected to the end of the feed bolt 13. The clamping seat 16 is fixed to the tail of the scraper 3.

[0043] The clamping seat 16 has a clamping groove, and the tail of the scraper 3 is inserted into the clamping groove. Two fastening bolts 17 are connected in parallel with the clamping seat 16, and the ends of the fastening bolts 17 abut against the tail of the scraper 3.

[0044] A turntable 15 is fixedly connected to the back of the clamping seat 16, and the end of the feed bolt 13 is fixedly connected to the rotating end of the turntable 15.

[0045] A locking nut 14 is threaded onto the feed bolt 13, and the locking nut 14 abuts against the connecting plate 12.

[0046] The lower end of the first bracket 5 is fixed with a first fixing plate, which is fixed to the upper end of the liquid receiving tank 7 by bolts.

[0047] Two second brackets 6 are fixedly connected side by side to the lower end of the connecting plate 12. A second fixing plate is fixedly connected to the lower end of the second bracket 6. The second fixing plate is fixed to the upper end of the liquid receiving tank 7 by bolts.

[0048] Several nozzles 10, which are connected to the inner cavity of the spray pipe 2, are fixedly attached to the outer wall of the spray pipe 2 in parallel along the axial direction.

[0049] A drain valve 8 is provided on the side wall near the bottom of the liquid receiving tank 7.

[0050] The working principle of this device is as follows:

[0051] Install this device at the sizing process of the papermaking equipment, so that the sizing roller 1 is within the working range of the device. During the papermaking process, the doctor blade 3 is tightly attached to the surface of the sizing roller 1. When the sizing roller 1 starts to work, the doctor blade 3 starts to continuously scrape off the glue liquid on the surface of the sizing roller 1. At the same time, the water pump of the cleaning liquid spraying device is started, and the cleaning liquid is sprayed onto the surface of the sizing roller 1 through the nozzle on the spray pipe 2.

[0052] The scraper 3 scrapes off the glue accumulated on the surface of the glue roller 1. The scraped glue mixes with the warm water from the spray rinse and falls into the receiving tank 7 below, and is discharged through the drain valve 8 for further processing.

[0053] Through the continuous operation of this device, the glue on the surface of the glue roller 1 can be effectively cleaned, preventing speed ratio fluctuations caused by glue accumulation, thereby avoiding paper breakage and ensuring the smooth progress of papermaking.

[0054] Regularly check the wear condition of the blade edge of the scraper 3. When the blade edge wears to a certain extent and affects the cleaning effect, adjust the distance between the blade edge and the adhesive roller 1 by rotating the feed bolt 13 to ensure normal adhesive scraping amount.

[0055] By rotating the spray pipe 2 onto the first bracket 5, the orientation of the nozzle 10 can be ignored during installation. After installation, the spray pipe 2 is rotated to adjust the orientation of the nozzle, and the adjusting bolt 18 is tightened to lock the angle of the spray pipe 2, making adjustment convenient.

[0056] Through the above detailed embodiments, the device for cleaning the glue liquid on the sizing roller 1 and preventing speed ratio fluctuations and paper breakage of the sizing roller 1 can operate stably and efficiently in the papermaking process, effectively solving the problems of speed ratio fluctuations and paper breakage caused by glue liquid accumulation on the sizing roller 1, and improving production efficiency and paper quality.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A cleaning device to prevent paper breakage due to fluctuations in the speed ratio of the sizing roller, characterized in that: It includes a glue application roller (1), below which a spray pipe (2) and a scraper (3) are arranged side by side. Below the spray pipe (2) and the scraper (3) is a liquid receiving tank (7). The spray pipe (2) is rotated around its axis by an adjustment structure. The scraper (3) adjusts the distance between its cutting edge and the glue application roller (1) by a feeding structure.

2. The cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the sizing roller according to claim 1, characterized in that: The adjustment structure includes a first bracket (5) fixedly connected to the opposite side wall of the upper port of the liquid receiving tank (7), one end of the spray pipe (2) is fixedly connected to an inlet pipe (20) communicating with its inner cavity, and the other end of the spray pipe (2) is fixedly connected to a support shaft (21). The support shaft (21) and the inlet pipe (20) are rotatably mounted on the two first brackets (5) respectively.

3. The cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the sizing roller according to claim 2, characterized in that: The inlet end of the liquid inlet pipe (20) passes through the first bracket (5) and is rotatably fitted with the liquid inlet elbow (9).

4. The cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the sizing roller according to claim 3, characterized in that: The first bracket (5) is threaded with an adjusting bolt (18) in the area on one side of the liquid inlet pipe (20), and the end of the adjusting bolt abuts against the end of the spray pipe (2).

5. The cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the sizing roller according to claim 4, characterized in that: The feeding structure includes two side frames (4) arranged side by side. Slide grooves (11) are respectively opened on the opposite ends of the two side frames (4). The opposite side walls of the scraper (3) are slidably constrained in the two slide grooves (11).

6. The cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the sizing roller according to claim 5, characterized in that: A connecting plate (12) is fixed between the ends of the two side frames (4) near the tail of the scraper (3). A feed bolt (13) is threaded onto the connecting plate (12). A clamping seat (16) is rotatably connected to the end of the feed bolt (13). The clamping seat (16) is fixed to the tail of the scraper (3).

7. The cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the sizing roller according to claim 6, characterized in that: The clamping seat (16) has a clamping groove, and the tail of the scraper (3) is inserted into the clamping groove. Two fastening bolts (17) are connected in parallel on the clamping seat (16), and the ends of the fastening bolts (17) abut against the tail of the scraper (3).

8. The cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the sizing roller according to claim 7, characterized in that: A turntable (15) is fixedly connected to the back of the clamping seat (16), and the end of the feed bolt (13) is fixedly connected to the rotating end of the turntable (15).

9. The cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the sizing roller according to claim 8, characterized in that: Several nozzles (10) that communicate with the inner cavity are fixedly connected in parallel along the axial direction on the outer wall of the spray pipe (2).

10. The cleaning device for preventing paper breakage due to fluctuations in the speed ratio of the sizing roller according to claim 9, characterized in that: The liquid receiving tank (7) has a drain valve (8) on the side wall near the bottom.

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