Stepped layered headbox

Abstract

The utility model relates to the technical field of headboxes, in particular to a stepped layered headbox which comprises a headbox body and two homogenizing rollers rotationally connected to the interior of the headbox body, hollow lead screws are rotationally connected to the interiors of the homogenizing rollers, and cleaning assemblies are connected to the outer sides of the hollow lead screws in a screwed mode. The cleaning assembly comprises a first threaded sleeve connected to the outer side of the hollow lead screw in a screwed mode, a first multi-direction connecting base is fixedly installed at one end of the outer side surface of the first threaded sleeve, a plurality of extending plates are rotatably connected to the outer side of the first multi-direction connecting base at equal intervals, and brushes are fixedly installed on the surfaces of one ends of the extending plates. And a transmission assembly is fixedly mounted on the outer side surface of the first threaded sleeve. According to the utility model, the cleaning component is arranged inside the homogenizing roller, so that after the homogenizing roller is used, paper pulp fibers which are adhered to the end surfaces of the round holes and are positioned on the inner wall of the homogenizing roller are cleaned from the inside of the homogenizing roller, the paper pulp fibers adhered to the surface of the homogenizing roller are more convenient to clean, and the cleaning difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of headboxes, in particular to a stepped and layered headbox. Background Art

[0002] The headbox is a key device of the papermaking machine and plays a key role in producing high-quality paper sheets. One of the basic tasks of the headbox is to ensure that the fiber suspension is evenly distributed along the transverse direction of the papermaking machine to minimize the transverse quantitative difference of the paper sheets. Another basic task of the headbox is to ensure that the fibers in the fiber suspension are evenly dispersed in the water body and minimize the flocculation in the fiber suspension to maximize the uniformity of the paper.

[0003] An existing headbox is usually provided with a homogenizing roller to achieve the purpose of rectifying and dispersing the fibers. When the circular holes on the surface of the homogenizing roller rotate, longer pulp fibers hang on the circular holes. After use, as the liquid decreases, the pulp fibers are easily hung on the end faces of the circular holes on the inner wall of the homogenizing roller, which makes it inconvenient to clean the pulp fibers adhered to the surface of the homogenizing roller. Utility Model Content

[0004] The utility model aims to provide a stepped and layered headbox to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A stepped and layered headbox comprises a headbox body and two homogenizing rollers rotatably connected to the inside of the headbox body, a hollow screw being rotatably connected to the inside of the homogenizing roller, a cleaning assembly being screwed together with the outside of the hollow screw, the cleaning assembly comprising a No. 1 threaded sleeve being screwed together with the outside of the hollow screw, a No. 1 multidirectional connecting seat being fixedly mounted at one end of the outer surface of the No. 1 threaded sleeve, a plurality of extension plates being rotatably connected to the outer side of the No. 1 multidirectional connecting seat at equal intervals, a brush being fixedly mounted on the surface of one end of the extension plate, a transmission assembly being fixedly mounted on the outer surface of the No. 1 threaded sleeve, the transmission assembly comprising a No. 2 motor being fixedly mounted on the outer surface of the No. 1 threaded sleeve, a No. 2 screw being fixedly mounted on the output end of the No. 2 motor.

[0007] Furthermore, an electric push rod is fixedly installed on the surface of one end of the headbox body through a bracket, a limit slide rod slides through the surface of one end of the headbox body, a sealing gasket is provided at the connection between the headbox body and the limit slide rod, and one end of the electric push rod is fixedly connected to the limit slide rod.

[0008] Furthermore, sealed bearings are symmetrically fixedly installed on both end surfaces of the headbox body, hollow rotating rods are fixedly installed on both end surfaces of the hollow screw rod, the hollow rotating rods are fixedly penetrated through the adjacent sealed bearing inner rings, and a plurality of water outlet holes are opened on the outer surface of the hollow screw rod.

[0009] Preferably: a No. 1 motor is fixedly mounted on one end surface of the headbox body via a bracket, and gears are fixedly mounted on the output end of the No. 1 motor and the outer surface of the hollow rotating rod below the No. 1 motor, and two adjacent gears are movably meshed and connected.

[0010] Preferably: one-way bearings are fixedly embedded on the surfaces of both ends of the homogenizing roller, the hollow rotating rod is fixedly passed through the inner ring of the one-way bearing, a sliding rod No. 1 is fixedly installed on the inner surface of the homogenizing roller, and a sliding sleeve with a No. 1 threaded sleeve slidingly connected to the outer side of the sliding rod.

[0011] Furthermore, a No. 2 multi-directional connection seat is slidably connected to the outer surface of the No. 1 threaded sleeve, a plurality of top plates are equidistantly rotationally connected to the outer side of the No. 2 multi-directional connection seat, a unidirectional connection seat is fixedly installed on one side surface of the extension plate, and the other end of the top plate is rotationally connected to the adjacent unidirectional connection seat.

[0012] Preferably: a limiting ring is fixedly installed on the outer surface of the No. 1 threaded sleeve, one end of the outer side of the No. 2 screw rod is rotatably connected to a fixing ring fixedly connected to the No. 1 threaded sleeve, and the outer side of the No. 2 screw rod is screwed connected to a No. 2 threaded sleeve fixedly connected to the No. 2 multi-directional connecting seat.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Extend the electric push rod to push the limit slide bar to move and make it press against the homogenizing roller to fix the homogenizing roller. The No. 1 motor is running and the hollow screw is rotated in the opposite direction through the transmission of the gear. The No. 1 threaded sleeve is moved through the sliding limit of the sleeve on the outside of the No. 1 slide bar. The brush scrapes the inner wall of the homogenizing roller. The brush is made of elastic material and can adapt to fit the inner wall of the homogenizing roller. The four brushes can form a ring to cover the inner wall of the homogenizing roller and clean the inner wall. Therefore, a cleaning component is set inside the homogenizing roller. After use, the pulp fibers adhering to the end face of the circular hole on the inner wall of the homogenizing roller are cleaned from the inside of the homogenizing roller, so that the pulp fibers adhering to the surface of the homogenizing roller are easier to clean and the cleaning difficulty is reduced.

[0015] 2. The No. 2 motor runs, driving the No. 2 screw to rotate. Through the screwing of the No. 2 screw and the No. 2 threaded sleeve, the No. 2 threaded sleeve drives the No. 2 multi-directional connecting seat to slide on the surface of the No. 1 threaded sleeve, extending or storing the brush, reducing the occupied space inside the homogenizing roller when not cleaning, so that the homogenizing roller can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the homogenizing roller in the utility model;

[0018] Figure 3 This is a schematic diagram of the disassembly structure of the cleaning component in the utility model;

[0019] Figure 4 It is a schematic diagram of the vertical section structure of the cleaning component and the hollow screw rod part in the utility model.

[0020] In the figure: 1. flow box body; 101. homogenizing roller; 102. sealed bearing; 2. hollow screw; 201. hollow rotating rod; 202. one-way bearing; 203. water outlet; 204. No. 1 motor; 205. gear; 206. limit slide rod; 207. electric push rod; 208. sealing gasket; 3. cleaning assembly; 301. No. 1 threaded sleeve; 302. No. 1 multi-directional connecting seat; 303. No. 2 multi-directional connecting seat; 304. extension plate; 305. one-way connecting seat; 306. top plate; 307. brush; 308. sleeve; 309. No. 1 slide rod; 4. transmission assembly; 401. limit ring; 402. fixing ring; 403. No. 2 screw; 404. No. 2 threaded sleeve; 405. No. 2 motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 4 In an embodiment of the utility model, a stepped and layered headbox comprises a headbox body 1 and two homogenizing rollers 101 rotatably connected to the inside of the headbox body 1, a hollow screw 2 is rotatably connected to the inside of the homogenizing roller 101, a cleaning assembly 3 is screwed and connected to the outside of the hollow screw 2, the cleaning assembly 3 comprises a No. 1 threaded sleeve 301 screwed and connected to the outside of the hollow screw 2, a No. 1 multi-directional connecting seat 302 is fixedly installed at one end of the outer surface of the No. 1 threaded sleeve 301, a plurality of extension plates 304 are rotatably connected to the outside of the No. 1 multi-directional connecting seat 302 at equal intervals, a brush 307 is fixedly installed on one end surface of the extension plate 304, a transmission assembly 4 is fixedly installed on the outer surface of the No. 1 threaded sleeve 301, the transmission assembly 4 comprises a No. 2 motor 405 fixedly installed on the outer surface of the No. 1 threaded sleeve 301, and a No. 2 screw 403 is fixedly installed on the output end of the No. 2 motor 405.

[0023] Specifically, the hollow screw 2 rotates forward, driving the homogenizing roller 101 to rotate, so that the homogenizing roller 101 operates normally. The hollow screw 2 rotates reversely, and under the action of the one-way bearing 202, the hollow screw 2 rotates alone, pushing the cleaning component 3 to move, and cleaning the inside of the homogenizing roller 101.

[0024] Embodiment 1

[0025] like Figure 1-3 As shown, in this embodiment, an electric push rod 207 is fixedly installed on the surface of one end of the headbox body 1 through a bracket, and a limit slide bar 206 is slidably penetrated on the surface of one end of the headbox body 1. A sealing gasket 208 is provided at the connection between the headbox body 1 and the limit slide bar 206, and one end of the electric push rod 207 is fixedly connected to the limit slide bar 206; sealed bearings 102 are symmetrically fixedly installed on the surfaces of both ends of the headbox body 1, and hollow rotating rods 201 are fixedly installed on the surfaces of both ends of the hollow screw rod 2. The hollow rotating rod 201 is fixedly penetrated through the adjacent inner ring of the sealed bearing 102, and a plurality of water outlet holes 203 are opened on the outer surface of the hollow screw rod 2; a No. 1 motor 204 is fixedly installed on the surface of one end of the headbox body 1 through a bracket, and a gear 205 is fixedly installed on the output end of the No. 1 motor 204 and the outer surface of the hollow rotating rod 201 below it, and two adjacent gears 205 are movably meshed and connected.

[0026] In this embodiment, the electric push rod 207 extends and pushes the limit slide bar 206 to move so that it abuts against the homogenizing roller 101 and fixes the homogenizing roller 101. The No. 1 motor 204 runs, and the hollow screw rod 2 rotates in the opposite direction through the transmission of the gear 205. The No. 1 threaded sleeve 301 moves through the sliding limit of the sliding sleeve 308 on the outside of the No. 1 slide bar 309. The brush 307 scrapes the inner wall of the homogenizing roller 101. The brush 307 is made of elastic material and can adapt to fit the inner wall of the homogenizing roller 101, so that the four brushes 307 can form a circular ring, covering the inner wall of the homogenizing roller 101, and cleaning the inner wall thereof. Therefore, by arranging the cleaning component 3 inside the homogenizing roller 101, after use, the pulp fibers adhering to the end face of the circular hole located on the inner wall of the homogenizing roller 101 are cleaned from the inside of the homogenizing roller 101, so that the pulp fibers adhering to the surface of the homogenizing roller 101 are easier to clean, reducing the difficulty of cleaning.

[0027] like Figure 2-4As shown, in this embodiment, one-way bearings 202 are fixedly embedded and installed on the surfaces of both ends of the homogenizing roller 101, and the hollow rotating rod 201 is fixedly penetrated through the inner ring of the one-way bearing 202. A No. 1 sliding rod 309 is fixedly installed on the inner surface of the homogenizing roller 101, and a sliding sleeve 308 is slidably connected to a No. 1 threaded sleeve 301 on the outer side of the No. 1 sliding rod 309; a No. 2 multi-directional connecting seat 303 is slidably connected to the outer surface of the No. 1 threaded sleeve 301, and a No. 2 multi-directional connecting seat 303 is equidistantly connected to the outer side of the No. 2 multi-directional connecting seat 303. A plurality of top plates 306 are provided, and a one-way connecting seat 305 is fixedly installed on one side surface of the extension plate 304, and the other end of the top plate 306 is rotatably connected to the adjacent one-way connecting seat 305; a limiting ring 401 is fixedly installed on the outer surface of the No. 1 threaded sleeve 301, and a fixing ring 402 fixedly connected to the No. 1 threaded sleeve 301 is rotatably connected at one end of the outer side of the No. 2 screw rod 403, and a No. 2 threaded sleeve 404 fixedly connected to the No. 2 multi-directional connecting seat 303 is screwed together on the outer side of the No. 2 screw rod 403.

[0028] During specific implementation, the No. 2 motor 405 runs, driving the No. 2 screw rod 403 to rotate, and through the screwing of the No. 2 screw rod 403 and the No. 2 threaded sleeve 404, the No. 2 threaded sleeve 404 drives the No. 2 multi-directional connecting seat 303 to slide on the surface of the No. 1 threaded sleeve 301, extending or storing the brush 307, reducing the occupied space inside the homogenizing roller 101 when not cleaning, so that the homogenizing roller 101 can work normally.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stepped stratified headbox, comprising a headbox body and two homogenizing rollers rotatably connected to the inside of the headbox body, characterized in that: A hollow screw is rotatably connected inside the homogenizing roller, and a cleaning assembly is screwedly connected to the outside of the hollow screw, the cleaning assembly includes a No. 1 threaded sleeve screwedly connected to the outside of the hollow screw, a No. 1 multi-directional connecting seat is fixedly installed at one end of the outer surface of the No. 1 threaded sleeve, a plurality of extension plates are rotatably connected to the outside of the No. 1 multi-directional connecting seat at equal intervals, a brush is fixedly installed on the surface of one end of the extension plate, a transmission assembly is fixedly installed on the outer surface of the No. 1 threaded sleeve, the transmission assembly includes a No. 2 motor fixedly installed on the outer surface of the No. 1 threaded sleeve, and a No. 2 screw is fixedly installed on the output end of the No. 2 motor.

2. A stepped stratified headbox according to claim 1, characterized in that: An electric push rod is fixedly installed on one end surface of the headbox body through a bracket, and a limiting slide rod is slidably penetrated through the one end surface of the headbox body. A sealing gasket is provided at the connection between the headbox body and the limiting slide rod, and one end of the electric push rod is fixedly connected to the limiting slide rod.

3. The stepped stratified headbox according to claim 1, characterized in that: Sealed bearings are symmetrically fixedly installed on both end surfaces of the headbox body, hollow rotating rods are fixedly installed on both end surfaces of the hollow screw rod, the hollow rotating rods are fixedly penetrated through the adjacent inner rings of the sealed bearings, and a plurality of water outlet holes are opened on the outer surface of the hollow screw rod.

4. A stepped stratified headbox according to claim 3, characterized in that: A No. 1 motor is fixedly mounted on one end surface of the headbox body through a bracket, and gears are fixedly mounted on the output end of the No. 1 motor and the outer surface of the hollow rotating rod below the No. 1 motor, and two adjacent gears are movably meshed and connected.

5. The stepped stratified headbox according to claim 3, characterized in that: One-way bearings are fixedly embedded in the surfaces of both ends of the homogenizing roller, the hollow rotating rod is fixedly passed through the inner ring of the one-way bearing, a sliding rod No. 1 is fixedly installed on the inner surface of the homogenizing roller, and a sliding sleeve with a No. 1 threaded sleeve slidingly connected to the outer side of the sliding rod No. 1 is provided.

6. The stepped stratified headbox according to claim 1, characterized in that: The outer surface of the No. 1 threaded sleeve is slidably connected to a No. 2 multi-directional connection seat, and a plurality of top plates are equidistantly rotatably connected to the outer side of the No. 2 multi-directional connection seat. A unidirectional connection seat is fixedly installed on one side surface of the extension plate, and the other end of the top plate is rotatably connected to an adjacent unidirectional connection seat.

7. A stepped and layered headbox according to claim 6, characterized in that: A limiting ring is fixedly installed on the outer surface of the No. 1 threaded sleeve, and a fixing ring fixedly connected to the No. 1 threaded sleeve is rotatably connected at one end of the outer side of the No. 2 screw rod, and a No. 2 threaded sleeve fixedly connected to the No. 2 multi-directional connecting seat is screwed on the outer side of the No. 2 screw rod.

Images