CN113233235A

CN113233235A - Paper roll flatness treatment device, calender and rewinder

Info

Publication number: CN113233235A
Application number: CN202110390927.0A
Authority: CN
Inventors: 黄伟; 陈清坤; 盛军明
Original assignee: Gold East Paper Jiangsu Co Ltd
Current assignee: Gold East Paper Jiangsu Co Ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-08-10
Anticipated expiration: 2041-04-12
Also published as: CN113233235B

Abstract

The application discloses planarization processing apparatus and calender, rewinding machine of scroll, processing apparatus includes: the paper roll is arranged on the base; and the driving piece drives the base to carry the paper roll to reciprocate along the axial direction parallel to the paper roll. Through above-mentioned device, can carry out dislocation adjustment to the scroll height, improve the planarization of scroll.

Description

Paper roll flatness treatment device, calender and rewinder

Technical Field

The invention relates to the field of papermaking, in particular to a paper roll flatness processing device, a calender and a rewinder.

Background

Large paper rolls of large paper machines and coating machines are difficult to control the whole width smoothness due to large width, so that the large paper rolls are the main bottleneck of the quality problem at present and severely restrict the improvement of the quality.

Particularly, in the processing process of the large paper roll, the parts with thicker roll paper thickness are accumulated at the same position, and obvious swelling and protruding strips are easy to appear, so that the flatness of the large paper roll is influenced. Moreover, the swollen raised strips on the roll paper can cause paper surface wrinkles in the subsequent processing and printing process, and the requirement of smoothness of the paper surface of a client is not easily met.

Disclosure of Invention

The technical problem that this application mainly solved provides a planarization processing apparatus and plating press, rewinding machine of scroll, carries out dislocation set with big scroll thickness high point position, improves the planarization of scroll.

In order to solve the above problem, the present application provides a paper roll flatness processing apparatus, comprising: the paper roll is arranged on the base; and the driving piece drives the base to drive the paper roll to reciprocate along the axial direction parallel to the paper roll.

In a preferred embodiment, the driving member comprises a moving cylinder or a moving hydraulic cylinder and a driving rod connected with the moving cylinder or the moving hydraulic cylinder, the driving rod is fixed on the base, and the moving cylinder or the moving hydraulic cylinder drives the driving rod to extend and retract so as to drive the base to reciprocate.

In a preferred embodiment, the driving member includes a motor and a screw rod connected to the motor, the base is fixedly connected to the screw rod, and the motor drives the screw rod to move, so as to drive the base to reciprocate.

In a preferred embodiment, the paper roll comprises a rotating roller core, the base comprises a first base and a second base which are oppositely arranged, and two ends of the rotating roller core are respectively connected with the first base and the second base; the processing device further comprises a synchronizing rod, and the synchronizing rod is fixed on the first base and the second base.

In a preferred embodiment, the processing device further comprises a photoelectric sensing switch electrically connected to the driving member.

In a preferred embodiment, the processing device further comprises a slide rail, and the base is slidably mounted on the slide rail.

In a preferred embodiment, the paper roll comprises a rotating roller core, and the processing device further comprises a limiting clamp arm connected to the base, the limiting clamp arm being movable to catch the rotating roller core to define a degree of freedom of the rotating roller core in a direction perpendicular to an axial direction of the paper roll.

In a preferred embodiment, the first end of the limiting clamping arm is pivotally connected to the base, and the second end of the limiting clamping arm is provided with a bayonet for clamping the rotating roller core; the limiting clamping arm further comprises a clamping arm driving piece which is fixedly connected to the first end of the limiting clamping arm to drive the bayonet to rotate so as to rotate the roller core through the buckle.

In a preferred embodiment, the limiting clamp arm is pivotally connected to the base, and comprises a first clamping arm and a second clamping arm which are arranged at an included angle, and the first clamping arm is pivotally connected with the second clamping arm; the limiting clamping arm further comprises a clamping arm driving piece, and the clamping arm driving piece is connected with the first clamping arm and/or the second clamping arm so as to drive the first clamping arm and/or the second clamping arm to pivot to be close to each other to be clamped on the rotating roller core.

In a preferred embodiment, the frequency of the base reciprocating is between 30-40 s/time.

In a preferred embodiment, the amplitude of reciprocation of the base is between 50mm and 75 mm.

In a preferred embodiment, the speed of rotation of the rolls is controlled to be above 100 m/min.

To solve the above problem, the present application also provides a calender including the processing device in any of the above embodiments.

To solve the above problem, the present application further provides a rewinding machine including the processing device in any of the above embodiments.

Be different from prior art, this application provides a planarization processing apparatus of scroll, drive the scroll through driving piece drive base along the axial direction reciprocating motion that is on a parallel with the scroll for the scroll still along with the vertically direction back and forth movement of stock form direction, be convenient for with the position dislocation distribution that scroll thickness is thicker at the position point of difference, alleviate or even avoided the position that scroll thickness is thicker to rise the strip at the swelling that same position point accumulation leads to, thereby improve the planarization of scroll. The application still installs this kind of processing apparatus on calender or rewinding machine with supporting, in the scroll axial rotation course of working, drives the base through the driving piece and drives the scroll along the axial direction reciprocating motion that is on a parallel with the scroll to improve the planarization of calender or rewinding machine papermaking.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of an embodiment of a device for handling the flatness of a paper roll according to the present application;

FIG. 2 is a schematic structural view of an embodiment of a retainer clip arm of FIG. 1;

fig. 3 is a schematic structural view of another embodiment of the limiting clamp arm of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used for explaining a specific gesture, and if the specific gesture changes, the directional indications also change accordingly.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a paper roll smoothness processing apparatus according to the present application. As shown in fig. 1, the processing device comprises a base 1, a paper roll 2 mounted on the base 1, and a driving member 3, wherein the driving member 3 drives the base 1 to drive the paper roll 2 to reciprocate along the direction parallel to the axial direction of the paper roll 2.

Note that the direction parallel to the axial direction of the paper roll 2, i.e., in the direction perpendicular to the direction of the roll paper 2. More specifically, the paper roll 2 includes a rotating roller core 21, and when winding or unwinding paper, the rotating roller core 21 rotates, thereby driving the paper to be wound on or unwound from the rotating roller core 21. Parallel to the axial direction of the roll 2 of paper is along a direction parallel to the axis of the rotating core 21. In addition, it should be noted that the reciprocating motion described in the present application is a back and forth motion along a straight line. It can also be understood that: the reciprocating motion is a motion along a straight line with a preset middle point position as a center and according to preset amplitudes (strokes) on two opposite sides of the reciprocating motion.

Wherein, in a specific embodiment, the base 1 further comprises a support rod for supporting and mounting the paper roll 2, and the paper roll 2 can rotate along the rotating roller core 21.

In one embodiment, the driving member 3 comprises a traveling cylinder 31 and a driving rod 32 connected to the traveling cylinder 31, the driving rod 32 being fixed to the base 1. The moving hydraulic cylinder drives the driving rod 32 to extend and contract so as to drive the base 1 to synchronously reciprocate along with the driving rod 32. It will be appreciated that the drive member 3 may also be a moving cylinder.

In order to prevent the base 1 from deviating from the initial position or the preset center position due to repeated reciprocating movements or malfunction or misoperation of the driving member 3, in one embodiment, the processing device further comprises a centering cylinder (not shown) connected to the base 1 and in signal connection with the driving member 3. When the driving member 3 stops working, the centering cylinder is used for driving the base 1 to return to the initial position or the preset central position, so that the reciprocating stroke of the base 1 is prevented from being influenced. The number and type of the driving members are not limited in this embodiment.

In another embodiment, the driving member 3 comprises a motor 31 and a screw 32 connected to the motor 31, and the base 1 is fixedly connected to the screw 32. The motor 31 drives the screw rod 32 to move, thereby driving the base 1 to reciprocate. Specifically, the screw 32 includes a rotary screw connected to the motor 31 and a nut connected to the rotary screw, and the nut is fixedly connected to the base 1. The motor 31 rotates the rotary screw to drive the base 1 to reciprocate along the rotary screw. It is understood that, as a modified structure, the output shaft of the motor 31 may be provided as a screw, and the base 1 may be provided with a screw hole connected to the screw.

In one embodiment, in order to make the reciprocating movement of the paper roll 2 more smooth, the base 1 comprises a first base 11 and a second base 12 which are oppositely arranged. Wherein both ends of the rotating roller core 21 are connected to the first base 11 and the second base 12, respectively. The driving members 3 are also two and are respectively connected to the first base 11 and the second base 12, so that the first base 11 and the second base 12 are respectively driven to drive the paper roll 2 to reciprocate along the axial direction parallel to the paper roll 2. In this case, the driving of the driving member 3 needs to be kept consistent, so as to ensure that the first base 11 and the second base 12 move synchronously and in the same direction.

In order to reduce the number of parts of the mechanism and to facilitate the synchronization of the movement and the movement direction of the first base 11 and the second base 12, in another embodiment, only one driving member 3 is used to drive the first base 11 and the second base 12 to move synchronously. Specifically, the processing device further comprises a synchronization rod 5, and the synchronization rod 5 is fixed to the first base 11 and the second base 12 to keep the first base 11 and the second base 12 moving synchronously. The driving member 3 is optionally connected to the first base 11, the second base 12 or the synchronization rod 5, so that the first base 11 and the second base 12 can be driven to move synchronously.

In one embodiment, the processing device further comprises a photo-electric inductive switch 6, the photo-electric inductive switch 6 being electrically connected to the driving member 3. In a preferred embodiment, the photoelectric sensing switch 6 is installed at a position of the paper roll 2 near the edge of the paper to sense the edge position of the paper during the paper rolling process and transmit a sensing signal to the driving member 3 to cause the driving member 3 to drive the base 1 to move in a direction opposite to the direction, or in other words, the photoelectric sensing switch 6 senses the farthest displacement of the paper in a reciprocating motion in a direction parallel to the axial direction of the paper roll 2, thereby controlling the maximum amplitude of the reciprocating motion of the base 1 in the direction parallel to the axial direction of the paper roll 2 driven by the driving member 3. In a specific embodiment, the two photoelectric sensing switches 6 are respectively disposed at the left and right ends of the paper roll 2 to respectively sense the edge positions of the paper at the two ends of the paper roll 2 during the paper rolling process, so as to respectively control the driving member 3 to drive the base 1 to move leftwards and rightwards along the direction parallel to the axial direction of the paper roll 2, i.e., to control the left and right amplitudes of the base 1. It will be understood that the left/right directions refer to directions of movement to opposite sides along a direction parallel to the axial direction of the roll 2, and can also be indicated as forward or backward, where the left/right directions refer to the opposite axial directions only, and are not limiting.

To facilitate the sliding of the base 1, in one embodiment the handling device further comprises a slide rail 7, the base 1 being slidably mounted on the slide rail 7. In a specific embodiment, the slide rail 7 further includes a fixed slide rail groove and a sliding member, the slide rail groove is slidably connected with the sliding member, and the base 1 is fixedly connected with the sliding member and is installed in the slide rail groove together. In this embodiment, the number of the slide rail grooves is at least two, and a linear bearing is installed between the two slide rail grooves to push and limit the sliding direction of the sliding member, which is not limited herein.

In order to avoid the paper roll 2 from shaking in the paper winding direction during the reciprocating movement of the base 1 in a direction parallel to the axial direction of the paper roll 2, in one embodiment the paper roll 2 comprises a rotating roll core 21 and the handling means comprise a limit clamp arm 8. Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of the position-limiting clamp arm 8 in fig. 1. As shown in fig. 2, the limit clip arm 8 is connected to the base 1, and the limit clip arm 8 is movable to a state of catching the rotating roller core 21 to define a degree of freedom of the rotating roller core 21 in a direction perpendicular to the axial direction of the paper roll 2.

In a specific embodiment, a first end of the limiting arm 8 is pivotally connected to the base 1 through a positioning pin 81, and a second end of the limiting arm 8 is provided with a bayonet 82 for fastening a rotating roller core. Wherein the size of the bayonet 82 is the same as the size of the rotating core 21 to snap the rotating core 21. The limiting clamping arm 8 further comprises a clamping arm driving part 83, and the clamping arm driving part 83 is fixedly connected with the first end of the limiting clamping arm 8 to drive the bayonet 82 to rotate so as to rotate the roller core 21 by the buckle. Specifically, the clip arm driving member 83 drives the first end of the limiting clip arm 8 to drive the second end of the limiting clip arm 8 to rotate around the positioning pin 81, so that the bayonet 82 rotates to the opening of the bayonet 82 to be aligned with the rotating roller core 21, and the clip arm driving member 83 stops driving. The rotating roller core 21 slides into the bayonet 82 from the opening of the bayonet 82, at this time, the clamping arm driving member 83 drives the first end of the limiting clamping arm 8 again, the second end of the limiting clamping arm 8 is driven to rotate around the positioning pin 81 to the bayonet 82 to be in a locking state, and the clamping arm driving member 83 stops driving, so that the rotating roller core 21 is limited in the bayonet 82. The locking state of the bayonet 82 may be that the opening of the bayonet 82 is located towards the vertical upper side, so as to avoid the roller core 21 from sliding off, or a rotary clamping column is additionally arranged, so that the rotary clamping column is triggered to rotate to close the opening of the bayonet 82.

Referring to fig. 3, fig. 3 is a schematic structural diagram of another embodiment of a spacing clip arm 8 according to the present application. In another specific embodiment, the limiting clamp arm 8 is pivotally connected to the base 1, and the limiting clamp arm 8 includes a first clamp arm 821 and a second clamp arm 822 disposed at an included angle, and the first clamp arm 821 is pivotally connected to the second clamp arm 822. The clamp arm driving member 83 is connected to the first clamp arm 821 and/or the second clamp arm 822 to drive the first clamp arm 821 and/or the second clamp arm 822 to pivot to approach each other to be clamped to the rotating core 21. Specifically, the clamp arm driver 83 drives the first clamp arm 821 and/or the second clamp arm 822 of the limiting clamp arm 8 to move in the direction away from each other along the pivot, so that the included angle between the first clamp arm 821 and the second clamp arm 822 is widened to accommodate the rotating roller core 21, and the drive of the clamp arm driver 83 is stopped. The rotating roller core 21 slides into the angle formed by the first and second clamp

arms

821, 822, and at this time, the clamp arm driving member 83 drives the first or

second clamp arm

821, 822 of the limiting clamp arm 8 to pivot along the pivot member to approach each other to clamp the rotating roller core 21. Wherein the first or

second clamp arm

821, 822 is aligned with the sliding direction of the rotating roller core 21 so that the rotating roller core 21 can slide between the first and second clamp

arms

821, 822. In this embodiment, the pivot element may be a positioning pin, or may be another pivot element, which is not limited herein.

In one embodiment, the base 1 is driven by the drive member 3 to reciprocate at a frequency of between 30 and 45 s/time. Note that, in the present embodiment, the frequency indicates the time required to complete one reciprocation. In this embodiment, 30-45 s/time means that the base 1 completes 1 reciprocating motion within 30-45 seconds.

In one embodiment, the amplitude of the reciprocating motion of the base 1 driven by the driving member 3 is controlled to be between 50mm and 75 mm. Specifically, the driving member 3 drives the base 1 to move between 50mm and 75mm to the left and 50mm to 75mm to the right in a direction parallel to the axial direction of the paper roll 2.

In one embodiment, the driving member 3 drives the first base 11 and the second base 22 and the paper roll 2 to reciprocate, so that the paper roll is more smooth by controlling the rotation speed of the paper roll 2 to be more than 100m/min based on the condition that the operation speed of the reel paper roll 2 is more than 100 m/min. In the paper making process, if the running speed of the reel spool 2 is less than 100m/min, the driving member 3 drives the first base 11 and the second base 22 and the reel 2 to reciprocate, which may cause the paper web to be broken. Wherein the direction of the paper web coincident with the direction of paper machine travel is referred to as the Machine Direction (MD) and the direction perpendicular to the paper machine travel is referred to as the Cross Direction (CD), and in this embodiment the paper machine direction is the machine direction and the base 1 reciprocates perpendicular to the paper machine direction.

The utility model provides a planarization processing apparatus of scroll, including base and driving piece, driving piece drive base drives the scroll along the axial direction reciprocating motion that is on a parallel with the scroll to the thickness height point dislocation distribution that makes the scroll alleviates big scroll and rises the strip because of swelling that local high point accumulation caused, thereby improves the planarization of scroll.

In another aspect of the present application, there is provided a calender including the paper roll flatness processing apparatus in any of the above embodiments, which is not described herein. Different from the existing calender, the calender provided by the application drives the base provided with the paper roll to reciprocate along the axial direction parallel to the paper roll through the smoothness processing device of the paper roll so as to drive the paper roll to reciprocate along the axial direction parallel to the paper roll. Meanwhile, the paper roll rotates along the self axial direction, so that the paper roll does reciprocating motion along the direction perpendicular to the rotation direction in the rotation processing process, the thickness points and the height points of the paper roll are distributed in a staggered mode, and the smoothness of the paper roll processed by the calender is improved. In this embodiment, when the swing of the calender is controlled to be ± 50mm, the dislocation of the high and low points is controlled to be 100mm, so that the influence caused by the raised strips can be completely covered, and the smoothness of the paper roll is improved.

In another aspect of the present application, there is further provided a rewinding machine, which includes the device for processing flatness of paper roll in any of the above embodiments, which is not described herein again. Be different from current rewinding machine, the rewinding machine that this application provided passes through the planarization processing apparatus of scroll, and the base that the scroll was installed in the drive is along being on a parallel with the axial direction of scroll reciprocating motion to drive the scroll along the axial direction reciprocating motion who is on a parallel with the scroll. Meanwhile, the paper roll rotates along the self axial direction, so that the paper roll does reciprocating motion along the direction perpendicular to the rotation direction in the rotation processing process, the thickness points and the height points of the paper roll are distributed in a staggered mode, and the smoothness of the paper roll processed by the rewinding machine is improved. In this embodiment, when the swing of the rewinding machine is controlled to be ± 75mm, the dislocation of the high and low points is controlled to be 150mm, so as to completely cover the influence caused by the raised strips and improve the smoothness of the paper roll.

The above description is only an embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A device for handling the flatness of a paper web, said device comprising:

the paper roll is arranged on the base;

the driving piece drives the base to drive the paper roll to reciprocate along the axial direction parallel to the paper roll.

2. The processing apparatus according to claim 1,

the driving part comprises a moving cylinder or a moving hydraulic cylinder and a driving rod connected with the moving cylinder or the moving hydraulic cylinder, the driving rod is fixed on the base, and the moving cylinder or the moving hydraulic cylinder drives the driving rod to stretch and retract so as to drive the base to reciprocate.

3. The processing apparatus as claimed in claim 1, wherein the driving member comprises a motor and a lead screw connected to the motor, the base is fixedly connected to the lead screw, and the motor drives the lead screw to move, so as to reciprocate the base.

4. The processing apparatus according to any one of claims 1 to 3, wherein the paper roll comprises a rotating roll core, the base comprises a first base and a second base which are oppositely arranged, and both ends of the rotating roll core are respectively connected to the first base and the second base; the processing device further comprises a synchronizing rod, and the synchronizing rod is fixed to the first base and the second base.

5. A treatment device according to any one of claims 1-3, further comprising a photo-electric switch electrically connected to the drive member.

6. The processing device according to any one of claims 1 to 3, further comprising a slide rail on which the base is slidably mounted.

7. The processing device according to any one of claims 1 to 3, wherein the paper roll comprises a rotating roller core, the processing device further comprising a limiting clamp arm connected to the base, the limiting clamp arm being movable to catch the rotating roller core to define a degree of freedom of the rotating roller core in a direction perpendicular to an axial direction of the paper roll.

8. The processing device according to claim 7, wherein a first end of the limiting clamp arm is pivotally connected to the base, and a second end of the limiting clamp arm is provided with a bayonet for fastening the rotating roller core;

the limiting clamping arm further comprises a clamping arm driving piece, wherein the clamping arm driving piece is fixedly connected to the first end of the limiting clamping arm to drive the bayonet to rotate to clamp the roller core.

9. The processing apparatus according to claim 7, wherein the retainer clip arm is pivotally connected to the base, the retainer clip arm including a first clip arm and a second clip arm disposed at an included angle, the first clip arm being pivotally connected to the second clip arm;

the limiting clamping arm further comprises a clamping arm driving piece, and the clamping arm driving piece is connected with the first clamping arm and/or the second clamping arm so as to drive the first clamping arm and/or the second clamping arm to pivot to be close to each other to be clamped on the rotating roller core.

10. A treatment device according to any one of claims 1-3, characterized in that the frequency of the reciprocating movement of the susceptor is between 30-45 s/time.

11. A treatment device according to any one of claims 1-3, wherein the amplitude of reciprocation of the base is between 50mm and 75 mm.

12. A handling unit according to any of claims 1-3, characterized in that the speed of rotation of the rolls is controlled to be above 100 m/min.

13. A calender, characterized in that the calender comprises a processing device according to any one of claims 1 to 12.

14. A rewinding machine characterized in that it comprises a processing device according to any one of claims 1 to 12.