Packaging paper headbox

Abstract

The utility model discloses a package paper flow slurry box, it is in order to solve the problem that the even slurry roller cannot be cleaned in time after the device of existing flow slurry box is finished, and the flow slurry box includes flow slurry box body, water tank, first connecting pipeline and cleaning assembly etc. part, and the first motor is started and drives the rotation of first threaded rod, and the sliding frame is moved linearly above first threaded rod and first sliding rod through the rotation of first threaded rod, and the second connecting pipeline moves up and down in the inside of flow slurry box body, and the water pump is started and makes the cleaning fluid in water tank transport to connecting hose through first connecting pipeline, and the cleaning fluid is transported to second connecting pipeline through connecting hose, and then the cleaning fluid is sprayed out through the spray head, can move second connecting pipeline to the place needing cleaning after the device is finished and clean the inside of flow slurry box, can ensure its surface smooth, make the pulp flow in and out of the eyelet can receive even shrinkage and diffusion, let the fiber evenly disperse in the pulp flow.

Description

Technical Field

[0001] This utility model relates to the field of packaging paper manufacturing, and in particular to packaging paper headboxes. Background Technology

[0002] With the continuous advancement of papermaking technology, headbox technology is also constantly evolving. In order to improve the quality and production efficiency of packaging paper, headboxes are increasingly focusing on enhancing automation and quality control functions. In the design and manufacturing of headboxes, there is a continuous pursuit of more precise control over pulp distribution, homogenization, and spraying, as well as better flow channel design to reduce pulp sludge buildup, facilitate cleaning, and improve the stability and reliability of the headbox to adapt to the requirements of different packaging paper varieties and production processes.

[0003] Traditional packaging paper headboxes only have the basic function of thoroughly mixing pulp. While they can achieve a certain level of mixing, they also have several limitations. First, after the device finishes operating, pulp, fibers, or other impurities remain on the surface of the homogenizing rollers. If the rollers are not cleaned in time, the homogenizing effect will decrease, and the fibers will not be effectively dispersed. This results in uneven fiber distribution in the pulp, leading to poor paper uniformity and affecting the paper's physical and performance properties.

[0004] Secondly, as the equipment is used for a longer period of time, impurities such as fiber bundles and sand particles from the pulp will gradually accumulate on the filter plate. These impurities will clog the pores of the filter plate, reducing the effective filtration area and thus reducing the filtration efficiency. Impurities that could have been filtered out may pass through the filter plate and enter the subsequent pulp flow, affecting the quality of the paper.

[0005] In addition, unfiltered pulp will remain on the filter plate. The pulp accumulates on the filter plate and gradually clogs the pores, reducing the filtration efficiency. The residual pulp cannot be collected for a second filtration, which increases the consumption of raw materials and increases costs.

[0006] In summary, existing packaging paper headboxes are insufficient in terms of cleaning and filtration effects, failing to meet the requirements for transporting rock wool raw materials. Therefore, developing a packaging paper headbox that ensures a smooth surface allows for uniform contraction and diffusion of the pulp as it enters and exits the orifices, generating stable turbulence and enabling uniform fiber dispersion within the pulp flow. This, in turn, improves paper uniformity and enhances properties such as strength, stiffness, and printability, which is of significant practical importance. Utility Model Content

[0007] To overcome the problem that after the device finishes operation, pulp, fibers, or other impurities remain on the surface of the homogenizing roller, and failure to clean the roller in a timely manner will lead to a decrease in homogenization effect, ineffective fiber dispersion, uneven fiber distribution in the pulp, and consequently, poor paper uniformity, affecting the paper's physical and performance properties.

[0008] The technical solution of this utility model is as follows: a packaging paper headbox, including a headbox body, a first motor, and a cleaning assembly. A first support frame is provided on the outside of the headbox body, and a water tank is provided above the first support frame. A first connecting pipe is fixedly connected to one side of the water tank, and a water pump is fixedly connected to the other side of the first connecting pipe. A connecting hose is fixedly connected to the other side of the water pump. A cleaning assembly is provided inside the headbox body. Grooves are provided on both sides inside the headbox. A first motor is provided above the headbox. A first threaded rod is provided at the output end of the first motor, and the first threaded rod is located inside one side of the groove. A first sliding rod is provided inside the other side of the groove. A sliding frame is provided above the first sliding rod and the first threaded rod. A fixed plate is provided above the sliding frame. A through hole is provided inside the fixed plate. A second connecting pipe is provided inside the through hole. The top end of the second connecting pipe is connected to the connecting hose. A spray head is provided below the second connecting pipe.

[0009] Preferably, the headbox body is provided with support legs at the bottom, and there are four sets of support legs. The headbox body is provided with a feed inlet on one side and a water inlet at the top. The headbox body is provided with a discharge pipe on the outside, below the feed inlet, and a valve is provided above the discharge pipe.

[0010] Preferably, a mounting frame is provided on the outside of the headbox body, a second motor is provided above the mounting frame, gears are provided on the outside of the headbox body, four sets of gears are provided, and one set of gears is connected to the second motor, and a homogenizing roller is provided inside the headbox body, four sets of homogenizing rollers are provided, and the four sets of homogenizing rollers are connected to the gears through a rotating shaft.

[0011] Preferably, a filter plate is provided inside the headbox body, and two sets of grooves are opened inside the headbox body. A third motor is provided on the outside of the headbox body, and a second threaded rod is provided at the output end of the third motor. The second threaded rod is inside the groove. A second sliding rod is provided inside the other set of grooves. A movable frame is provided above the second threaded rod and the second sliding rod, and a scraper is provided below the movable frame. The scraper abuts against the filter plate.

[0012] Preferably, two sets of grooves are provided on both sides of the headbox body, a fourth motor is provided on the top of the headbox body, a third threaded rod is provided at the output end of the fourth motor, and the third threaded rod is inside the groove. A third sliding rod is provided inside the other set of grooves, and a sliding block is provided above the third threaded rod and the third sliding rod. A sealing plate is fixedly connected to the outside of the sliding block.

[0013] Preferably, a second support frame is provided on the outside of the headbox body, and a collection trough is provided above the second support frame, with the height of the collection trough being the same as the height of the filter plate.

[0014] Preferably, four sets of gears are meshed together.

[0015] The beneficial effects of this utility model: Through ingenious structural design, this utility model combines cleaning and filtration effects. On the one hand, starting the first motor drives the first threaded rod to rotate, which in turn drives the sliding frame to move linearly above the first threaded rod and the first sliding rod, causing the second connecting pipe to move up and down inside the headbox body. Starting the water pump transports the cleaning liquid in the water tank through the first connecting pipe to the connecting hose, and then through the connecting hose to the second connecting pipe. Finally, the cleaning liquid is sprayed out through the spray head. After the device is used up, the second connecting pipe can be moved down to the place that needs cleaning to clean the inside of the headbox, ensuring its smooth surface. This allows the pulp to be uniformly contracted and diffused when entering and exiting the orifices, thereby generating stable turbulence and allowing the fibers to be evenly dispersed in the pulp, thus improving the paper's uniformity and enhancing its strength, stiffness, printability, and other properties.

[0016] On the other hand, starting the third motor drives the second threaded rod to rotate. The rotation of the second threaded rod causes the moving frame to move linearly above the second threaded rod and the second sliding rod. The linear movement of the moving frame causes the scraper to move linearly above the filter plate to clean the residual pulp on the filter plate. Starting the fourth motor drives the third threaded rod to rotate. The rotation of the third threaded rod causes the sliding block to move linearly above the third threaded rod and the third sliding rod. The linear movement of the sliding block causes the sealing plate to move. The sealing plate moves upward, and the scraper can push the residual pulp on the filter plate into the collection tank. The pulp in the collection tank that has not passed through the filter plate is mixed a second time to improve the consistency of the pulp. Attached Figure Description

[0017] Figure 1 The diagram shown is a first three-dimensional structural schematic of the packaging paper headbox of this utility model;

[0018] Figure 2 The diagram shown is a second three-dimensional structural schematic of the packaging paper headbox of this utility model;

[0019] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the headbox of the present invention.

[0020] Figure 4 The diagram shown is a two-dimensional structural schematic of the second cross-section of the headbox of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Headbox body; 2. Support leg; 3. Feed inlet; 4. Water inlet; 5. Discharge pipe; 6. Valve; 101. First support frame; 102. Water tank; 103. First connecting pipe; 104. Water pump; 105. Connecting hose; 106. First motor; 107. First threaded rod; 108. First sliding rod; 109. Sliding frame; 110. Fixing plate; 111. Second connecting pipe; 112. Sprayer 201. Shower head; 202. Mounting frame; 203. Second motor; 204. Gear; 205. Homogenizing roller; 306. Filter plate; 307. Third motor; 308. Second threaded rod; 309. Second sliding rod; 3000. Moving frame; 3001. Scraper; 401. Fourth motor; 402. Third threaded rod; 403. Third sliding rod; 404. Sliding block; 405. Sealing plate; 501. Second support frame; 502. Collection tank. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-4This utility model provides an embodiment of a packaging paper headbox, including a headbox body 1, a first motor 106, and a cleaning assembly. A first support frame 101 is provided on the outer side of the headbox body 1, and a water tank 102 is provided above the first support frame 101. A first connecting pipe 103 is fixedly connected to one side of the water tank 102, and a water pump 104 is fixedly connected to the other side of the first connecting pipe 103. A connecting hose 105 is fixedly connected to the other side of the water pump 104. A cleaning assembly is provided inside the headbox body 1. The headbox has grooves on both sides. A first motor 106 is installed above the headbox. A first threaded rod 107 is installed at the output end of the first motor 106, and the first threaded rod 107 is located inside one side of the groove. A first sliding rod 108 is installed inside the other side of the groove. A sliding frame 109 is installed above the first sliding rod 108 and the first threaded rod 107. A fixing plate 110 is installed above the sliding frame 109. A through hole is opened inside the fixing plate 110, and a second connecting pipe 111 is installed inside the through hole. The top end of the second connecting pipe 111 is connected to the connecting hose 105. A spray head 112 is installed below the second connecting pipe 111. The first motor 106 is started to drive the first threaded rod 107 to rotate. The rotation of the first threaded rod 107 drives the sliding frame 109 to move linearly above the first threaded rod 107 and the first sliding rod 108, so that the second connecting pipe 111 moves up and down inside the headbox body 1. The water pump 104 is started to transport the cleaning fluid in the water tank 102 to the connecting hose 105 through the first connecting pipe 103. In step 5, the cleaning fluid is transported to the second connecting pipe 111 through the connecting hose 105, and then sprayed out through the spray head 112. After the device is used up, the second connecting pipe 111 can be moved down to the place where it needs to be cleaned to clean the inside of the headbox. This ensures that the surface is smooth and that the pulp flow is uniformly contracted and diffused when entering and exiting the orifice, thereby generating stable turbulence and allowing the fibers to be evenly dispersed in the pulp flow. This improves the uniformity of the paper and enhances its strength, stiffness, printability and other properties.

[0024] Please see Figures 1-4In this embodiment, a support leg 2 is provided below the headbox body 1, and four sets of support legs 2 are provided. A feed inlet 3 is provided on one side of the headbox body 1, and a water inlet 4 is provided on the top of the headbox body 1. A discharge pipe 5 is provided on the outside of the headbox body 1, and the discharge pipe 5 is below the feed inlet 3. A valve 6 is provided above the discharge pipe 5. A mounting frame 201 is provided on the outside of the headbox body 1, and a second motor 202 is provided above the mounting frame 201. Gears 203 are provided on the outside of the headbox body 1, and four sets of gears 203 are provided, with each set of gears having a tooth... Wheel 203 is connected to the second motor 202. The headbox body 1 is equipped with a homogenizing roller 204. There are four sets of homogenizing rollers 204. The four sets of homogenizing rollers 204 are connected to the gears 203 through a rotating shaft. The pulp is fed into the device through the feed port 3. The external water source is transported into the device through the water inlet 4 to mix with the pulp. The second motor 202 is started to drive the rotation of the four sets of gears 203. The rotation of the four sets of gears 203 drives the homogenizing rollers 204 inside the headbox body 1 to rotate, which can mix and stir the pulp and water inside the headbox body 1.

[0025] Please see Figures 1-4In this embodiment, a filter plate 301 is provided inside the headbox body 1. Two sets of grooves are formed inside the headbox body 1. A third motor 302 is provided on the outside of the headbox body 1. A second threaded rod 303 is provided at the output end of the third motor 302, and the second threaded rod 303 is located inside the groove. A second sliding rod 304 is provided inside the other set of grooves. A movable frame 305 is provided above the second threaded rod 303 and the second sliding rod 304. A scraper 306 is provided below the movable frame 305. The blade 306 abuts against the filter plate 301. Two sets of grooves are provided on both sides of the headbox body 1. A fourth motor 401 is provided on the top of the headbox body 1. A third threaded rod 402 is provided at the output end of the fourth motor 401, and the third threaded rod 402 is inside the groove. A third sliding rod 403 is provided inside the other set of grooves. A sliding block 404 is provided above the third threaded rod 402 and the third sliding rod 403. A sealing plate 405 is fixedly connected to the outside of the sliding block 404. The outside of the headbox body 1 is provided with A second support frame 501 is provided, and a collection trough 502 is provided above the second support frame 501. The height of the collection trough 502 is the same as the height of the filter plate 301. The third motor 302 is started to drive the second threaded rod 303 to rotate. The rotation of the second threaded rod 303 drives the moving frame 305 to move linearly above the second threaded rod 303 and the second sliding rod 304. The linear movement of the moving frame 305 drives the scraper 306 to move linearly above the filter plate 301 to clean the residual pulp on the filter plate 301. The fourth motor 401 is started to drive the third threaded rod 402 to rotate. The rotation of the third threaded rod 402 causes the sliding block 404 to move linearly above the third threaded rod 402 and the third sliding rod 403. The linear movement of the sliding block 404 causes the sealing plate 405 to move. The sealing plate 405 moves upward, and the scraper 306 can push the pulp remaining on the filter plate 301 into the collection tank 502. The pulp in the collection tank 502 that has not passed through the filter plate 301 is mixed a second time to improve the consistency of the pulp.

[0026] During operation, the first motor 106 is started to drive the first threaded rod 107 to rotate. The rotation of the first threaded rod 107 causes the sliding frame 109 to move linearly above the first threaded rod 107 and the first sliding rod 108, causing the second connecting pipe 111 to move up and down inside the headbox body 1. The water pump 104 is started to transport the cleaning fluid in the water tank 102 through the first connecting pipe 103 to the connecting hose 105. The cleaning fluid is then transported through the connecting hose 105 to the second connecting pipe 111, and finally sprayed through the spray head 112. After use, the second connecting pipe 111 can be moved downwards to the area requiring cleaning to clean the inside of the headbox, ensuring a smooth surface and allowing the pulp to experience uniform contraction and diffusion as it enters and exits the orifices. This generates stable turbulence, allowing the fibers to be evenly dispersed in the pulp flow, thereby improving paper uniformity and enhancing its strength, stiffness, printability, and other properties. Pulp is fed into the device through the feed inlet 3, and external water is transported into the device through the water inlet 4 to mix with the pulp. The second motor 2 is then started. 02 drives the rotation of four sets of gears 203, which in turn drives the rotation of the equalizing roller 204 inside the headbox body 1, thus mixing and agitating the pulp and water inside the headbox body 1. The third motor 302 is then activated, driving the second threaded rod 303 to rotate. This rotation of the second threaded rod 303 causes the moving frame 305 to move linearly above the second threaded rod 303 and the second sliding rod 304. This linear movement of the moving frame 305 causes the scraper 306 to move linearly above the filter plate 301, thus affecting the filter plate 301. The remaining pulp is cleaned up, and the fourth motor 401 is started to drive the third threaded rod 402 to rotate. The rotation of the third threaded rod 402 causes the sliding block 404 to move linearly above the third threaded rod 402 and the third sliding rod 403. The linear movement of the sliding block 404 causes the sealing plate 405 to move. The sealing plate 405 moves upward, and the scraper 306 pushes the remaining pulp on the filter plate 301 into the collection tank 502. The pulp in the collection tank 502 that has not passed through the filter plate 301 is mixed a second time to improve the consistency of the pulp.

[0027] Through the above steps, the first motor 106 is started to drive the first threaded rod 107 to rotate. The rotation of the first threaded rod 107 drives the sliding frame 109 to move linearly above the first threaded rod 107 and the first sliding rod 108, causing the second connecting pipe 111 to move up and down inside the headbox body 1. The water pump 104 is started to transport the cleaning liquid in the water tank 102 to the connecting hose 105 through the first connecting pipe 103. The cleaning liquid is then transported to the second connecting pipe 111 through the connecting hose 105, and then sprayed out through the spray head 112. After the device is used up, the second connecting pipe 111 can be moved down to the place that needs cleaning to clean the inside of the headbox. This ensures that the surface is smooth, so that the pulp flow can be uniformly contracted and diffused when entering and exiting the orifice, thereby generating stable turbulence, allowing the fibers to be evenly dispersed in the pulp flow, thereby improving the uniformity of the paper and improving the strength, stiffness, printability and other properties of the paper.

Claims

1. A packaging paper headbox, comprising a headbox body (1), characterized in that: It also includes a first motor (106) and a cleaning assembly. A first support frame (101) is provided on the outside of the headbox body (1). A water tank (102) is provided above the first support frame (101). A first connecting pipe (103) is fixedly connected to one side of the water tank (102). A water pump (104) is fixedly connected to the other side of the first connecting pipe (103). A connecting hose (105) is fixedly connected to the other side of the water pump (104). A cleaning assembly is provided inside the headbox body (1). Grooves are provided on both sides inside the headbox. A first motor (106) is provided above the headbox. The output end is provided with a first threaded rod (107), and the first threaded rod (107) is inside a groove on one side. A first sliding rod (108) is provided inside a groove on the other side. A sliding frame (109) is provided above the first sliding rod (108) and the first threaded rod (107). A fixing plate (110) is provided above the sliding frame (109). A through hole is opened inside the fixing plate (110). A second connecting pipe (111) is provided inside the through hole. The top end of the second connecting pipe (111) is connected to a connecting hose (105). A spray head (112) is provided below the second connecting pipe (111).

2. The packaging paper headbox according to claim 1, characterized in that: The headbox body (1) is provided with support legs (2) at the bottom, and there are four sets of support legs (2). The headbox body (1) is provided with a feed inlet (3) on one side, and a water inlet (4) is provided at the top of the headbox body (1). The headbox body (1) is provided with a discharge pipe (5) on the outside, and the discharge pipe (5) is below the feed inlet (3). A valve (6) is provided above the discharge pipe (5).

3. The packaging paper headbox according to claim 1, characterized in that: A mounting frame (201) is provided on the outside of the headbox body (1), and a second motor (202) is provided above the mounting frame (201). A gear (203) is provided on the outside of the headbox body (1), and four sets of gears (203) are provided. One set of gears (203) is connected to the second motor (202). A homogenizing roller (204) is provided inside the headbox body (1), and four sets of homogenizing rollers (204) are provided. The four sets of homogenizing rollers (204) are connected to the gears (203) through a rotating shaft.

4. The packaging paper headbox according to claim 3, characterized in that: The headbox body (1) is equipped with a filter plate (301) inside. The headbox body (1) has two sets of grooves inside. A third motor (302) is provided on the outside of the headbox body (1). A second threaded rod (303) is provided at the output end of the third motor (302). The second threaded rod (303) is inside the groove. A second sliding rod (304) is provided inside the other set of grooves. A movable frame (305) is provided above the second threaded rod (303) and the second sliding rod (304). A scraper (306) is provided below the movable frame (305). The scraper (306) abuts against the filter plate (301).

5. The packaging paper headbox according to claim 1, characterized in that: Two sets of grooves are provided on both sides of the headbox body (1). A fourth motor (401) is provided on the top of the headbox body (1). A third threaded rod (402) is provided at the output end of the fourth motor (401), and the third threaded rod (402) is inside the groove. A third sliding rod (403) is provided inside the other set of grooves. A sliding block (404) is provided above the third threaded rod (402) and the third sliding rod (403). A sealing plate (405) is fixedly connected to the outside of the sliding block (404).

6. The packaging paper headbox according to claim 1, characterized in that: A second support frame (501) is provided on the outside of the headbox body (1), and a collection trough (502) is provided above the second support frame (501), and the height of the collection trough (502) is the same as the height of the filter plate (301).

7. The packaging paper headbox according to claim 1, characterized in that: Four sets of gears (203) mesh together.

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