CN214694889U

CN214694889U - Anti-deviation auxiliary net driving roller for bottom net

Info

Publication number: CN214694889U
Application number: CN202120771414.XU
Authority: CN
Inventors: 王宝辉; 刘涛; 王展; 王少楠; 郭庆奇
Original assignee: Zhejiang Shanying Paper Industry Co Ltd
Current assignee: Zhejiang Shanying Paper Industry Co Ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-11-12
Anticipated expiration: 2031-04-15

Abstract

The utility model provides a prevent supplementary net roller that drives of end net of skew belongs to the papermaking field. It is including driving the wire netting roller, drive and be equipped with a plurality of circles on the wire netting roller and along driving the friction surface that the wire netting roller axial placed in proper order, have a plurality of between two adjacent friction surfaces and place and have elastic anti-deflection strip along driving wire netting roller circumference, the friction surface on be equipped with anti-skidding line. The utility model discloses an advantage lies in driving the net roller roll in-process, and paper forming net produces frictional force with the friction surface respectively with preventing inclined to one side strip, can not only prevent that paper forming net from skidding and can also prevent that paper forming net from producing the skew at the removal in-process.

Description

Anti-deviation auxiliary net driving roller for bottom net

Technical Field

The utility model belongs to the papermaking field especially relates to a prevent supplementary driving roll of end net of skew.

Background

The paper forming net is easy to generate deviation under the condition that the paper forming net is under tension, and the paper forming net is easy to generate wrinkles or damage along with the continuous movement of the paper forming net.

For example, chinese patent document discloses a horizontal gap former for a high-speed paper machine [ patent application No.: CN201420533385.3], which comprises a flow box, an upper wire feeding device and a lower wire feeding device, wherein the upper wire feeding device comprises a forming roller, an upper wire feeding and driving roller, an upper wire guiding roller, an upper forming wire, an upper wire feeding correcting roller and an upper wire feeding tensioning roller, and the upper forming wire is sequentially sleeved on the forming roller, the upper wire feeding and driving roller, the upper wire guiding roller, the upper wire feeding correcting roller and the upper wire feeding tensioning roller; the lower net device comprises a breast roll, a forming plate box, a vacuum couch roll, a high vacuum box, a lower net driving roll, a lower net correcting roll, a lower forming net and a lower net tensioning roll, the lower forming net is sequentially sleeved on the breast roll, the forming plate box, a loading scraper, the vacuum couch roll, the high vacuum box, the lower net driving roll, the lower net correcting roll and the lower net tensioning roll, and the loadable scraper and a forming shoe are arranged behind the forming plate box. The utility model has short forming area, greatly reduces the contact between the slurry suspension and the air, has fast forming and good uniformity, and accelerates the forming of the slurry on the net part by adjusting the position of the dewatering element; the two sides of the paper sheet are dewatered simultaneously, and the difference between the two sides of the paper sheet is small. However, the utility model discloses in, drive the net roller and not be used for the direction and prevent that paper former becomes the structure that the net removed the skew, when paper former becomes the net and skids, only partly production of paper former becomes the phenomenon of skidding, receives under tensile condition at paper former becomes the net, can produce the phenomenon of skew, along with the continuation of paper former moves, makes paper former produce the fold easily or damages paper former.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, a net roller is driven in the bottom screen assistance that prevents excursion is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a supplementary net roller that drives of end net of preventing excursion, is including driving the net roller, drive and be equipped with a plurality of circles on the net roller and along driving the friction surface that the net roller axial was placed in proper order, have a plurality of between two adjacent friction surfaces and place and have elastic anti-excursion strip along driving net roller circumference, the friction surface on be equipped with anti-skidding line.

In the auxiliary net driving roller for the bottom net, the deviation-preventing strips are obliquely arranged on the net driving roller, and the oblique directions of the deviation-preventing strips on one side of the friction surface are opposite to the oblique directions of the deviation-preventing strips on the other side of the friction surface.

In the deflection-preventing auxiliary bottom net driving roller, the deflection-preventing strips and the friction surfaces are coated with polyurethane.

In the auxiliary bottom wire drive roller for preventing deviation, the shortest distance between the end part of the deviation preventing strip far away from the wire drive roller and the wire drive roller is the same as the thickness of the friction surface (11).

In the auxiliary net driving roller for the anti-shifting bottom net, the anti-slip lines comprise a plurality of left oblique strips and right oblique strips, and the left oblique strips and the right oblique strips are arranged in a staggered mode.

In the auxiliary net driving roller for the bottom net capable of preventing deviation, the bottom of each deviation preventing strip is connected with a sliding block capable of reciprocating along the radial direction of the net driving roller, and a spring is arranged between the sliding block and the net driving roller.

In the anti-shifting auxiliary bottom net driving roller, each sliding groove is also communicated with two limiting grooves, two limiting blocks which respectively move in the limiting grooves are arranged at the end parts of the sliding blocks, which are close to the center line of the net driving roller, and a stopping block is arranged at the end part of each limiting groove, which is far away from the center line of the net driving roller.

In the auxiliary net driving roller for the bottom net for preventing the deviation, a plurality of deviation preventing strips between two adjacent friction surfaces are sequentially arranged at equal intervals along the circumferential direction of the net driving roller.

In the anti-deviation auxiliary bottom net driving roller, the end surface of the anti-deviation strip, which is far away from the net driving roller, is arc-surface-shaped.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses in drive and be equipped with a plurality of rings of friction surfaces on the net roller, have between the adjacent friction surface and place and have elastic oblique strip of preventing along driving net roller circumference, driving net roller roll in-process, paper forming net produces frictional force with friction surface and oblique strip of preventing respectively, can not only prevent that paper forming net from skidding and can also prevent that paper forming net from producing the skew at the removal in-process.

2. The utility model provides a friction surface wherein the incline direction of a plurality of anti-deviation strip of one side is opposite with the incline direction of a plurality of anti-deviation strip of this friction surface opposite side, compares in the vertical anti-deviation strip of placing, and the anti-deviation strip of slope is receiving the crowded thrust that is different from the incline direction and when leading to warping, and the reaction force that its produced is greater than the vertical reaction force of preventing that anti-deviation strip warp the production of placing far away, further prevents that paper becomes the net and produces the skew at the removal in-process.

3. The utility model discloses well deviation prevention strip and friction surface cladding have polyurethane, compare in ordinary rubber face of gluing, and polyurethane has better wearability, and coefficient of friction is high simultaneously, more can prevent that paper forming net from skidding and squinting, and life is longer.

Drawings

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic illustration of the connection of the anti-deflection strip to the friction face;

fig. 4 is an enlarged schematic view at B in fig. 2.

In the figure: the net driving device comprises a net driving roller 10, a friction surface 11, a deviation preventing strip 12, an anti-skid texture 13, a left oblique strip 14, a right oblique strip 15, a sliding block 17, a spring 18, a sliding groove 19, a limiting groove 20, a limiting block 21 and a stopping block 22.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

With reference to fig. 1-4, an anti-deviation bottom screen auxiliary drive screen roller comprises a drive screen roller 10, wherein the drive screen roller 10 is provided with a plurality of friction surfaces 11 which are sequentially arranged along the axial direction of the drive screen roller 10, a plurality of elastic anti-deviation strips 12 which are circumferentially arranged along the drive screen roller 10 are arranged between two adjacent friction surfaces 11, and the friction surfaces 11 are provided with anti-skid grains 13.

When the net driving roller 10 is used, a paper forming net is laid on the net driving roller 10, the paper forming net is not only contacted with the anti-skid grains 13 on the friction surface 11, but also contacted with the anti-deviation strips 12, and in the rolling process of the net driving roller 10, the paper forming net, the anti-skid grains 13 and the anti-deviation strips 12 generate friction force, in the rolling process of the net driving roller 10, the paper forming net moves forwards through the friction force generated between the paper forming net and the anti-skid grains 13, and in the forward moving process of the paper forming net, if the paper forming net deviates, because the anti-deviation strips 12 have elasticity and the friction force generated between the paper forming net and the anti-deviation strips 12, the anti-deviation strips 12 deform, and then generate relative reaction force and act on the paper forming net, so that the paper forming net is prevented from deviating in the moving process.

The deviation preventing strips 12 are obliquely arranged on the net driving roller 10, and the oblique directions of the deviation preventing strips 12 on one side of the friction surface 11 are opposite to the oblique directions of the deviation preventing strips 12 on the other side of the friction surface 11.

The inclination directions of the plurality of anti-deviation strips 12 on the two sides of the friction surface 11 are opposite, and in the moving process of the paper forming net, no matter the paper forming net is inclined leftwards or rightwards, the anti-deviation strips 12 with the inclination directions opposite to the deviation directions can be extruded certainly, compared with the vertically placed anti-deviation strips 12, when the inclined anti-deviation strips 12 are deformed due to extrusion force different from the inclination directions, the generated reaction force is far greater than that generated by the deformation of the vertically placed anti-deviation strips 12, and therefore, no matter which direction the paper forming net is inclined towards, the paper forming net can be prevented from deviating by the larger reaction force.

The deviation preventing strip 12 and the friction surface 11 are coated with polyurethane.

Compare in ordinary rubber and glue the face, ordinary rubber glues the face hardness inadequately, owing to drive 10 belt drive of net roller, wearing and tearing are very fast, lead to the life cycle short, owing to drive 10 belt drive of net roller, except the wearability, still need have higher coefficient of friction to avoid the appearance of the phenomenon of skidding of paper molding net, because polyurethane has better wearability, coefficient of friction is high simultaneously, can satisfy in the requirement of driving the net roller position.

The shortest distance between the end of the deviation preventing strip 12 far away from the net driving roller 10 and the net driving roller 10 is the same as the thickness of the friction surface 11.

In the moving process of the paper forming net, the paper forming net is ensured to be capable of simultaneously abutting against the deviation preventing strips 12 and the friction surface 11, if the deviation preventing strips 12 are higher than the friction surface 11, the paper forming net is only contacted with the deviation preventing strips 12, the paper forming net is easy to slip, if the deviation preventing strips 12 are lower than the friction surface 11, the paper forming net is only contacted with the friction surface 11, although the paper forming net cannot slip, the paper forming net is easy to shift in the moving process.

The anti-skid lines 13 comprise a plurality of left oblique strips 14 and right oblique strips 15, and the left oblique strips 14 and the right oblique strips 15 are arranged in a staggered mode.

The left oblique strips 14 and the right oblique strips 15 are mutually staggered to form a plurality of rhombuses, so that the friction force between the paper forming net and the friction surface 11 can be increased in the moving process of the paper forming net, and the slipping phenomenon is prevented.

Preferably, a sliding block 17 capable of reciprocating along the radial direction of the wire driving roller 10 is connected to the bottom of each deviation preventing strip 12, and a spring 18 is arranged between the sliding block 17 and the wire driving roller 10.

In this example, the paper forming web is tightly stretched on the web driving roller 10 by the transmission of the plurality of web driving rollers 10, in an initial state, the spring 18 can generate a small elastic force when being extruded, the deviation preventing strips 12 are slightly higher than the friction surface 11 under the pushing of the elastic force generated by the spring 18, the paper forming web is tightly stretched on the web driving rollers 10, the paper forming web is tightly extruded on the deviation preventing strips 12, and the spring 18 can generate a small elastic force when being extruded, so that the friction force between the paper forming web and the deviation preventing strips 12 is increased while the paper forming web is in contact with the friction surface 11, the paper forming web is not crushed by the deviation preventing strips 12, and the paper forming web is prevented from deviating in the moving process.

A plurality of sliding grooves 19 which are in one-to-one correspondence with the sliding blocks 17 are arranged in the net driving roller 10, the sliding blocks 17 are movable in the sliding grooves 19, and the springs 18 are positioned between the sliding blocks 17 and the inner walls of the sliding grooves 19, which are close to the center line of the net driving roller 10.

Each sliding groove 19 is also communicated with two limiting grooves 20, two limiting blocks 21 which are respectively movable in the limiting grooves 20 are arranged at the end part of the sliding block 17 close to the central line of the wire driving roller 10, and a stop block 22 is arranged at the end part of each limiting groove 20 far away from the central line of the wire driving roller 10.

When the screen driving roller 10 is manufactured, the limiting groove 20 and the sliding groove 19 are opened, the limiting block 21, the sliding block 17 and the spring 18 are placed in the limiting groove, and then the stopping block 22 is fixed on the limiting groove 20, so that the limiting block 21 is prevented from dropping out of the screen driving roller 10 with the deviation preventing strip 12 in the rolling process of the screen driving roller 10, and the glue solution is prevented from entering the limiting groove 20 and the sliding groove 19 to cause structural damage in the encapsulating process.

A plurality of deviation preventing strips 12 between two adjacent friction surfaces 11 are sequentially arranged along the circumferential direction of the net driving roller 10 at equal intervals. The stability is increased.

The end surface of the deviation preventing strip 12 far away from the net driving roller 10 is arc-surface-shaped. If the end face of the deviation preventing strip 12 far away from the net driving roller 10 is rectangular or quadrilateral, the end corner of the deviation preventing strip is easy to damage the paper forming net in the process of rubbing the paper forming net.

The utility model discloses a theory of operation does: when the net driving roller 10 is used, a paper forming net is laid on the net driving roller 10, the paper forming net is not only contacted with the anti-skid grains 13 on the friction surface 11, but also contacted with the anti-deviation strips 12, in the rolling process of the net driving roller 10, the paper forming net, the anti-skid grains 13 and the anti-deviation strips 12 generate friction force, in the rolling process of the net driving roller 10, the paper forming net moves forwards through the friction force generated between the paper forming net and the anti-skid grains 13, in the forward moving process of the paper forming net, if the paper forming net deviates, because the anti-deviation strips 12 have elasticity and the friction force generated between the paper forming net and the anti-deviation strips 12, the anti-deviation strips 12 deform, and after the anti-deviation strips 12 deform, relative reaction force can be generated and acts on the paper forming net, so that the paper forming net is prevented from deviating in the moving process.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the wire driving roller 10, the friction surface 11, the deviation preventing bars 12, the anti-slip lines 13, the left inclined bars 14, the right inclined bars 15, the sliding blocks 17, the springs 18, the sliding grooves 19, the limiting grooves 20, the limiting blocks 21, the stopping blocks 22, etc., are used more herein, these terms are used only for the purpose of more conveniently describing and explaining the essence of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a supplementary net roller that drives of end net of preventing excursion, is including driving net roller (10), its characterized in that, drive and be equipped with friction surface (11) that a plurality of circles placed along driving net roller (10) axial in proper order on net roller (10), have between two adjacent friction surfaces (11) a plurality of along driving net roller (10) circumference and placing and have elastic anti-excursion strip (12), friction surface (11) on be equipped with anti-skidding line (13).

2. An anti-drift auxiliary net driving roller according to claim 1, characterized in that the anti-drift strips (12) are obliquely arranged on the net driving roller (10), and the inclination directions of the anti-drift strips (12) on one side of the friction surface (11) are opposite to the inclination directions of the anti-drift strips (12) on the other side of the friction surface (11).

3. An anti-shifting auxiliary cylinder for driving bottom wire as claimed in claim 1, characterized in that the anti-shifting strips (12) and the friction surface (11) are coated with polyurethane.

4. An auxiliary drive roll for a bottom wire against deflection as claimed in claim 1, characterized in that the shortest distance between the end of the strip (12) facing away from the drive roll (10) and the drive roll (10) is the same as the thickness of the friction surface (11).

5. The auxiliary net driving roller of anti-shifting bottom net according to claim 1, characterized in that the anti-slip pattern (13) comprises a plurality of left slanted bars (14) and right slanted bars (15), and the left slanted bars (14) and the right slanted bars (15) are arranged in a staggered manner.

6. An auxiliary net driving roller of a bottom net for preventing deviation according to claim 1, characterized in that a sliding block (17) capable of reciprocating along the radial direction of the net driving roller (10) is connected to the bottom of each deviation preventing strip (12), and a spring (18) is arranged between the sliding block (17) and the net driving roller (10).

7. The auxiliary net driving roller for the bottom net with the deviation prevention function as claimed in claim 6, wherein a plurality of sliding grooves (19) corresponding to the sliding blocks (17) in a one-to-one mode are formed in the net driving roller (10), the sliding blocks (17) are movably arranged in the sliding grooves (19), and the springs (18) are located between the sliding blocks (17) and the inner walls, close to the center line of the net driving roller (10), of the sliding grooves (19).

8. An anti-shifting auxiliary bottom wire driving roller as claimed in claim 7, characterized in that each sliding groove (19) is further communicated with two limiting grooves (20), the end of the sliding block (17) close to the center line of the wire driving roller (10) is provided with two limiting blocks (21) respectively moving in the limiting grooves (20), and the end of each limiting groove (20) far from the center line of the wire driving roller (10) is provided with a stop block (22).

9. An anti-drift auxiliary cylinder for driving a bottom wire as claimed in claim 1, wherein a plurality of anti-drift strips (12) between two adjacent rubbing surfaces (11) are arranged in sequence at equal intervals along the circumference of the cylinder (10).

10. An auxiliary net driving roller for bottom net with anti-deviation function as claimed in claim 1, characterized in that the end surface of the anti-deviation strip (12) far from the net driving roller (10) is arc-shaped.