A headbox for a paper machine

Abstract

The utility model relates to papermaking technical field, and disclose a kind of paper machine slurry supply mechanism, the paper machine slurry supply mechanism, including treatment tank, the end portion of treatment tank is fixedly installed with feed pipe, the bottom of treatment tank is fixedly installed with discharge valve, the inside of treatment tank is provided with dispersion subassembly.This paper machine slurry supply mechanism, by being provided with dispersion subassembly, relative rotation of cooperation carousel and rotating rod, so that scraper and filter cartridge between relative rotation can carry out scraping cleaning work to the arc inner surface of filter cartridge, simultaneously cooperate with the pushing of abutting ball to the abutment rod, cooperate with the pushing of hinged link, to promote the vertical movement of arc plate in the inside of arc groove by push rod, to clean the inside of arc groove, avoid paper pulp coagulation group in arc groove accumulation, affect the dispersion effect of paper pulp coagulation group, ensure the processing effect of paper pulp when device is feeding.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, specifically to a pulp supply mechanism for a papermaking machine. Background Technology

[0002] A paper machine is a general term for a complete set of equipment that links different parts of the pulp to form a paper web. It is a machine that produces paper from a pulp suspension that meets the requirements of papermaking by passing it through processes such as dewatering and forming with a filter screen, mechanical extrusion dewatering, and drying.

[0003] According to a paper machine pulp supply mechanism disclosed in the above application (Announcement No.: CN219450254U), the shredding mechanism is used to shred lumps of pulp. Under the filtration of the filtration mechanism, the shredded lumps of pulp flow from the discharge pipe to the paper machine, thereby avoiding the problem of lumps of pulp clogging the discharge pipe, ensuring the normal transport of pulp, and further ensuring the working efficiency of the paper machine.

[0004] However, in actual use, the gap between the cutter and the filter cylinder of the above-mentioned equipment is relatively large. Even with real-time control of the pulp flow rate, the cutter's effect on cutting and dispersing the agglomerates in the pulp is still limited. As the feeding time increases, the incompletely dispersed agglomerates remaining in the filter cylinder will stick together to form larger agglomerates, affecting subsequent normal feeding operations. In view of this, we propose a pulp feeding mechanism for papermaking machines. Utility Model Content

[0005] The purpose of this invention is to provide a pulp supply mechanism for a papermaking machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pulp supply mechanism for a paper machine, including a processing tank, a feed pipe fixedly installed at the end of the processing tank, a discharge valve fixedly installed at the bottom of the processing tank, and a dispersing component arranged inside the processing tank;

[0007] The dispersion component includes a drive motor, which is fixedly mounted on the side wall of the processing tank. A rotating rod is fixedly mounted on the output end of the drive motor. A scraper is fixedly mounted on the arc-shaped outer wall of the rotating rod. A fixed disk is fixedly mounted on the inner wall of the end of the processing tank. A turntable is rotatably mounted on the side wall of the fixed disk. A filter cylinder is fixedly connected to the arc-shaped outer wall of the turntable via a cylindrical rod. Filter holes are formed on the arc-shaped inner wall of the filter cylinder. A square groove is formed on the inner wall of the scraper. An arc-shaped groove is formed on the outer wall of the scraper at the end away from the rotating rod. A stop rod is slidably mounted on the inner wall of the scraper. A push rod is hinged to the top of the stop rod via a hinge rod. An arc-shaped plate is fixedly mounted on the top of the push rod. A toothed ring is fixedly mounted through the outer wall of the rotating rod. A small gear is rotatably mounted on the inner wall of the turntable. An abutment ball is fixedly mounted on the side wall of the turntable.

[0008] Preferably, the interior of the processing tank is designed to be thick at both ends and thin in the middle, and the discharge valve is located at the bottom center of the processing tank, which allows the pulp entering the processing tank to be discharged outward under the action of gravity through the discharge valve.

[0009] Preferably, the gear ring meshes with the pinion to achieve transmission, and the arc-shaped inner wall of the turntable is provided with teeth that mesh with the pinion, so that when the rotating rod rotates, the gear ring and the pinion work together to maintain a certain speed difference between the turntable and the rotating rod.

[0010] Preferably, multiple sets of both square and arc-shaped grooves are provided, and the multiple sets of square and arc-shaped grooves are evenly distributed in a linear array on the inner wall of the scraper. Furthermore, the multiple sets of square and arc-shaped grooves are spaced apart to avoid excessive resistance from the pulp liquid when the scraper rotates inside the filter cylinder.

[0011] Preferably, the number of turntables is set to two sets, and the two sets of turntables are symmetrically arranged with the vertical central axis of the filter cylinder as the axis of symmetry. The abutting balls on the sides of the two sets of turntables that are close to each other are staggered, so that the abutting rod is only pushed by the abutting ball at one end at a time, causing the abutting rod to make lateral displacement inside the scraper.

[0012] Preferably, a discharge assembly is provided on the inner wall of the end of the scraper away from the rotating rod. The discharge assembly includes a circular tube. A cylindrical groove is formed on the inner wall of the end of the scraper away from the rotating rod. The bottom end of the circular tube is fixedly installed on the inner wall of the bottom end of the cylindrical groove. A rotating sleeve is sleeved on the outer wall of the top of the circular tube. A spring is provided between the bottom end face of the rotating sleeve and the bottom end face of the cylindrical groove. A spiral groove is formed on the arc-shaped inner wall of the cylindrical groove. A convex ball is fixedly installed on the arc-shaped outer wall of the rotating sleeve. The convex ball is located inside the spiral groove. An arc groove is formed on the top of the rotating sleeve.

[0013] Preferably, the number of discharge components is set to several groups, and the several groups of discharge components are arranged in the gap between adjacent arc-shaped grooves.

[0014] Compared with the prior art, the present invention provides a pulp supply mechanism for a papermaking machine, which has the following beneficial effects:

[0015] 1. The pulp feeding mechanism of this paper machine, by setting up a dispersing component, in conjunction with the relative rotation of the turntable and the rotating rod, enables the scraper to scrape and clean the arc-shaped inner surface of the filter cylinder when the scraper and the filter cylinder rotate relative to each other. At the same time, in conjunction with the pushing of the abutment ball and the pushing of the hinge rod, the push rod drives the arc plate to move vertically inside the arc groove, thereby cleaning the inside of the arc groove and preventing pulp clumps from accumulating in the arc groove, which would affect the dispersing effect of pulp clumps and ensure the processing effect of the pulp during feeding.

[0016] 2. The pulp feeding mechanism of this paper machine is equipped with a discharge component. As the rotating rod continues to rotate, when the rotating sleeve is aligned with the filter hole along with the rotation of the scraper, the spring force is released, and the rotating sleeve moves outward. At this time, under the guidance of the convex ball and the spiral groove, the rotating sleeve rotates synchronously as it extends outward, cooperating with the arc groove to crush the residue in the filter hole. This ensures the device's effect on breaking up agglomerates in the pulp and prevents them from sticking inside the equipment and affecting subsequent continuous feeding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a cross-sectional view of the filter cartridge of this utility model;

[0020] Figure 4 This is a cross-sectional view of the scraper and turntable of this utility model;

[0021] Figure 5 This is a partial cross-sectional view of the scraper structure of this utility model.

[0022] In the diagram: 1. Processing tank; 2. Feed pipe; 3. Discharge valve; 4. Dispersion assembly; 41. Drive motor; 42. Rotating rod; 43. Scraper; 44. Fixed disc; 45. Turntable; 46. Filter cylinder; 47. Filter holes; 431. Square groove; 432. Arc groove; 433. Abutment rod; 434. Push rod; 435. Arc plate; 451. Gear ring; 452. Pinion; 453. Abutment ball; 5. Discharge assembly; 51. Round tube; 52. Rotating sleeve; 53. Spring; 54. Spiral groove; 55. Convex ball; 56. Arc groove. Detailed Implementation

[0023] like Figures 1-5 As shown, this utility model provides a technical solution: a pulp supply mechanism for a paper machine, including a processing tank 1, a feed pipe 2 fixedly installed at the end of the processing tank 1, a discharge valve 3 fixedly installed at the bottom of the processing tank 1, and a dispersion component 4 arranged inside the processing tank 1. The dispersion component 4 includes a drive motor 41, a rotating rod 42, a scraper 43, a fixed disk 44, a turntable 45, a filter cylinder 46, filter holes 47, a square groove 431, an arc groove 432, a stop rod 433, a push rod 434, an arc plate 435, a toothed ring 451, a pinion 452, and a stop ball 453.

[0024] In one embodiment of this utility model, a drive motor 41 is fixedly installed on the side wall of the processing tank 1. A rotating rod 42 is fixedly installed at the output end of the drive motor 41. A scraper 43 is fixedly installed on the arc-shaped outer wall of the rotating rod 42. A fixed disk 44 is fixedly installed on the inner wall of the end of the processing tank 1. A turntable 45 is rotatably installed on the side wall of the fixed disk 44. A filter cylinder 46 is fixedly connected to the arc-shaped outer wall of the turntable 45 through a cylindrical rod. Filter holes 47 are opened on the arc-shaped inner wall of the filter cylinder 46. The scraper 43... The inner wall of the 3 is provided with a square groove 431. The outer wall of the scraper 43 away from the rotating rod 42 is provided with an arc groove 432. A stop rod 433 is slidably installed on the inner wall of the scraper 43. The top of the stop rod 433 is hinged to a push rod 434 through a hinge rod. An arc plate 435 is fixedly installed on the top of the push rod 434. A toothed ring 451 is fixedly installed through the outer wall of the rotating rod 42. A small gear 452 is rotatably installed on the inner wall of the turntable 45. An abutment ball 453 is fixedly installed on the side wall of the turntable 45.

[0025] Furthermore, the interior of the processing tank 1 is designed to be thicker at both ends and thinner in the middle, and the discharge valve 3 is located at the bottom center of the processing tank 1. This allows the pulp entering the processing tank 1 to be discharged outwards under gravity through the discharge valve 3. Simultaneously, the feed pipe 2 passes through the fixed disc 44, and because the turntable 45 is connected to the filter cylinder 46 via multiple sets of cylindrical rods on its arc-shaped outer wall, the pulp raw material can directly enter the filter cylinder 46 for filtration through the feed pipe 2. Additionally, the turntable 45 and the rotating rod 42 are rotatably connected, allowing relative rotation between them. Specifically, the scraper 43 is provided with multiple sets... Multiple scraper blades 43 are evenly distributed in a circumferential array on the arc-shaped outer wall of the rotating rod 42. At the same time, the toothed ring 451 meshes with the pinion 452 to achieve transmission. The arc-shaped inner wall of the turntable 45 is provided with teeth that mesh with the pinion 452. Thus, when the rotating rod 42 rotates, the toothed ring 451 and the pinion 452 work together to maintain a certain speed difference between the turntable 45 and the rotating rod 42. Therefore, the filter cylinder 46, which is connected to the turntable 45 through a cylindrical rod, and the scraper blades 43, which are fixedly connected to the rotating rod 42, rotate relative to each other. This allows the outer surface of the scraper blades 43 to scrape and clean the arc-shaped inner surface of the filter cylinder 46.

[0026] Meanwhile, multiple sets of square grooves 431 and arc-shaped grooves 432 are provided, and these multiple sets of square grooves 431 and arc-shaped grooves 432 are evenly distributed in a linear array on the inner wall of the scraper 43. The multiple sets of square grooves 431 and arc-shaped grooves 432 are spaced apart to avoid excessive resistance from the pulp liquid when the scraper 43 rotates inside the filter cylinder 46, which could lead to excessive torque on the rotating rod 42 and damage. Furthermore, the abutment rod 433 is horizontally positioned, and its end is rounded to prevent jamming between the end of the abutment rod 433 and the abutment ball 453. Additionally, two sets of turntables 45 are provided, and the two sets of turntables 45 are symmetrical about the vertical central axis of the filter cylinder 46. The two sets of turntables 45 are symmetrically arranged, and the abutment balls 453 on the side closest to each other are staggered. This ensures that the abutment rod 433 is pushed by only one abutment ball 453 at a time, causing the abutment rod 433 to move laterally inside the scraper 43. In addition, the arc plate 435 is set inside the arc groove 432. When the abutment rod 433 slides along the inner wall of the scraper 43 under the thrust, it is pushed by the hinge rod, causing the push rod 434 to drive the arc plate 435 to move vertically inside the arc groove 432. This cleans the inside of the arc groove 432, preventing pulp clumps from accumulating inside the arc groove 432 and affecting the dispersing effect of pulp clumps. This ensures the processing effect of the pulp when the device is feeding material.

[0027] Additionally, a discharge assembly 5 is provided on the inner wall of the end of the scraper 43 away from the rotating rod 42. The discharge assembly 5 includes a circular tube 51. A cylindrical groove is formed on the inner wall of the end of the scraper 43 away from the rotating rod 42. The bottom end of the circular tube 51 is fixedly installed on the inner wall of the bottom end of the cylindrical groove. A rotating sleeve 52 is sleeved on the outer wall of the top of the circular tube 51. A spring 53 is provided between the bottom end face of the rotating sleeve 52 and the bottom end face of the cylindrical groove. A spiral groove 54 is formed on the arc-shaped inner wall of the cylindrical groove. A convex ball 55 is fixedly installed on the arc-shaped outer wall of the rotating sleeve 52. The convex ball 55 is located inside the spiral groove 54. An arc groove 56 is formed on the top of the rotating sleeve 52.

[0028] In this embodiment of the utility model, the number of discharge components 5 is set in several groups, and the several groups of discharge components 5 are arranged in the gap between adjacent arc grooves 432. At the same time, the bottom end of the spring 53 is fixedly connected to the bottom end face of the cylindrical groove, and the top end of the spring 53 is in contact with the bottom end face of the rotating sleeve 52. The spring 53 is sleeved on the outside of the cylindrical tube 51 to avoid the rotating sleeve 52 being interfered with during rotation. Furthermore, when the rotating sleeve 52 retracts into the cylindrical groove, the spring 53 is in a compressed state. When the rotating sleeve 52 is aligned with the filter hole 47 as the scraper 43 rotates, the elastic force of the spring 53 is released, and the rotating sleeve 52 moves outward. At this time, under the guidance of the convex ball 55 and the spiral groove 54, the rotating sleeve 52 rotates synchronously when it extends outward, cooperating with the arc groove 56 to crush the residue in the filter hole 47, ensuring the device's effect on breaking up the clumps in the pulp and preventing them from sticking inside the equipment and affecting the subsequent continuous feeding work.

[0029] In this invention, during use, the pulp conveying equipment pumps pulp in through the feed pipe 2, and simultaneously starts the drive motor 41. This, in conjunction with the rotation of the rotating rod 42, causes the scraper 43 to rotate continuously. Simultaneously, under the transmission of the gear ring 451 and the pinion 452, a certain speed difference is maintained between the turntable 45 and the rotating rod 42. Therefore, relative rotation occurs between the filter cylinder 46, which is connected to the turntable 45 via a cylindrical rod, and the scraper 43, which is fixedly connected to the rotating rod 42. This causes the scraper... The outer surface of 43 can scrape and clean the arc-shaped inner surface of the filter cylinder 46. At the same time, the abutting ball 453 pushes the abutting rod 433, and the hinge rod pushes the push rod 434 to drive the arc plate 435 to move vertically inside the arc groove 432. This cleans the inside of the arc groove 432, prevents pulp clumps from accumulating in the arc groove 432, and affects the dispersing effect of pulp clumps. This ensures the processing effect of the pulp when the device is feeding materials.

[0030] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A pulp supply mechanism for a papermaking machine, comprising a processing tank (1), wherein a feed pipe (2) is fixedly installed at the end of the processing tank (1), and a discharge valve (3) is fixedly installed at the bottom of the processing tank (1), characterized in that: The processing tank (1) is equipped with a dispersion component (4); The dispersion component (4) includes a drive motor (41), which is fixedly mounted on the side wall of the processing tank (1). A rotating rod (42) is fixedly mounted on the output end of the drive motor (41). A scraper (43) is fixedly mounted on the arc-shaped outer wall of the rotating rod (42). A fixed disk (44) is fixedly mounted on the inner wall of the end of the processing tank (1). A turntable (45) is rotatably mounted on the side wall of the fixed disk (44). A filter cylinder (46) is fixedly connected to the arc-shaped outer wall of the turntable (45) by a cylindrical rod. Filter holes (47) are opened on the arc-shaped inner wall of the filter cylinder (46). The inner wall of the scraper (43) is provided with a square groove (431). The outer wall of the scraper (43) away from the rotating rod (42) is provided with an arc groove (432). A push rod (433) is slidably installed on the inner wall of the scraper (43). The top of the push rod (433) is hinged to a push rod (434) through a hinge rod. An arc plate (435) is fixedly installed on the top of the push rod (434). A toothed ring (451) is fixedly installed through the outer wall of the rotating rod (42). A small gear (452) is rotatably installed on the inner wall of the turntable (45). An abutment ball (453) is fixedly installed on the side wall of the turntable (45).

2. The pulp supply mechanism for a papermaking machine according to claim 1, characterized in that: The interior of the processing tank (1) is designed to be thick at both ends and thin in the middle, and the discharge valve (3) is located at the center of the bottom of the processing tank (1).

3. The pulp supply mechanism for a papermaking machine according to claim 1, characterized in that: The gear ring (451) meshes with the pinion (452) to achieve transmission, and the inner arc of the turntable (45) is provided with teeth that mesh with the pinion (452).

4. The pulp supply mechanism for a papermaking machine according to claim 1, characterized in that: The number of square grooves (431) and arc grooves (432) is provided in multiple sets, and the multiple sets of square grooves (431) and arc grooves (432) are evenly distributed in a linear array on the inner wall of the scraper (43), and the multiple sets of square grooves (431) and arc grooves (432) are spaced apart.

5. The pulp supply mechanism for a papermaking machine according to claim 1, characterized in that: The number of turntables (45) is set in two sets, and the two sets of turntables (45) are symmetrically arranged with the vertical central axis of the filter cylinder (46) as the axis of symmetry, and the abutting ball (453) on the side of the two sets of turntables (45) that are close to each other is staggered.

6. The pulp supply mechanism for a papermaking machine according to claim 4, characterized in that: A discharge assembly (5) is provided on the inner wall of the end of the scraper (43) away from the rotating rod (42). The discharge assembly (5) includes a round tube (51). A cylindrical groove is provided on the inner wall of the end of the scraper (43) away from the rotating rod (42). The bottom end of the round tube (51) is fixedly installed on the inner wall of the bottom end of the cylindrical groove. A rotating sleeve (52) is sleeved on the outer wall of the top of the round tube (51). A spring (53) is provided between the bottom end face of the rotating sleeve (52) and the bottom end face of the cylindrical groove. A spiral groove (54) is provided on the arc-shaped inner wall of the cylindrical groove. A convex ball (55) is fixedly installed on the arc-shaped outer wall of the rotating sleeve (52). The convex ball (55) is located inside the spiral groove (54). An arc groove (56) is provided on the top of the rotating sleeve (52).

7. A pulp supply mechanism for a papermaking machine according to claim 6, characterized in that: The number of discharge components (5) is set to several groups, and several groups of discharge components (5) are set in the gap between adjacent arc grooves (432).

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