CN114524307B

CN114524307B - Paper pre-folding, slitting and winding device

Info

Publication number: CN114524307B
Application number: CN202210318060.2A
Authority: CN
Inventors: 姜文彬; 刘红富
Original assignee: Zhejiang Jintong Paper Industry Co ltd
Current assignee: Zhejiang Jintong Paper Industry Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2023-06-27
Anticipated expiration: 2041-04-06
Also published as: CN113200386B; CN113200386A; CN114524307A

Abstract

The invention provides a paper pre-folding, slitting and winding device, which aims at the defects that a device for cutting and winding paper in the prior art has poor cutting quality and is difficult to change a shaft, and belongs to the technical field of paper making equipment. The two winding shaft-changing mechanisms are arranged at the rear ends of the split slitting mechanisms in parallel, so that winding and shaft changing can be automatically performed, and the production efficiency is greatly improved.

Description

Paper pre-folding, slitting and winding device

Technical Field

The invention belongs to the technical field of papermaking equipment, and particularly relates to a paper pre-folding, slitting and winding device.

Background

In the production process of the roll paper, the roll paper with larger width is sometimes required to be cut into narrower roll paper, the existing roll paper cutting mechanism generally adopts a press roller to compress and convey the roll paper, the roll paper compressed and conveyed by the press roller is directly placed at a required position by a fixed cutting knife, the roll paper compressed and conveyed by the press roller is automatically cut into narrower paper by the cutting knife, the cutting placement is directly adopted, the cut position of the paper is easily uneven, and the cutting quality is poor. The paper after the cutting needs to be rolled up with the winding mechanism, forms the stock form again, and to the great stock form of diameter behind the volume and the rolling, generally adopts great winding mechanism, and this kind of winding mechanism is accomplished the rolling and is had the stock form axle volume of paper to be great and weight great because of the rolling, can cause difficult the trade axle, and manual work trades the axle all needs a large amount of time at every turn, seriously influences production efficiency.

Disclosure of Invention

Aiming at the defects that the cutting quality of paper is poor and the shaft is not easy to change in the paper cutting and winding device in the prior art, the invention provides the paper pre-folding, slitting and winding device which can improve the slitting quality of paper, automatically change the shaft and greatly improve the production efficiency.

The invention aims at realizing the following technical scheme: a paper pre-folding, slitting and winding device comprises a split slitting mechanism and two winding and shaft changing mechanisms,

the split cutting mechanism comprises a first rack and a second rack which are sequentially arranged, wherein a plurality of groups of transverse rollers which are transversely arranged and a first motor for driving the transverse rollers to rotate are arranged on the first rack; the second rack is provided with a channel which transversely penetrates through the front side and the rear side of the second rack, an upper fixing strip and a lower fixing strip which are arranged along the channel are arranged in the channel, the upper fixing strip and the lower fixing strip are parallel to each other and are positioned right above the lower fixing strip, the upper fixing strip and the lower fixing strip are respectively fixed on the second rack, the two sides of the lower fixing strip in the channel are respectively provided with a mounting frame which is fixed on the second rack, at least two groups of roller sets are respectively arranged on the two sides of the upper fixing strip in the channel, the roller sets on the two sides of the upper fixing strip are symmetrically distributed, the roller sets comprise an upper roller and a lower roller which are matched with each other, the upper roller is gradually arranged downwards from one end close to the upper fixing strip to the other end, the upper roller is positioned right above the lower roller and is parallel to the lower roller, a gap for conveying paper is arranged between the upper roller and the lower roller, the upper roller is only arranged between the upper fixing strip and the mounting frame in a rotating manner, and the lower roller is only arranged between the lower fixing strip and the mounting frame in a self-conveying manner; the upper end face of the lower fixing strip is fixedly provided with a supporting strip which is arranged along the length square of the lower fixing strip, the upper end face of the supporting strip is downwards inclined from the middle to two sides to form two inclined faces, and the inclination angle of the inclined faces is the same as that of the upper roller; the planes of the gaps in all roller groups positioned on the same side of the upper fixing strip and the inclined planes corresponding to the support strip are positioned on the same plane, and the angle between the two inclined planes is 170-185 degrees; the one end of lower fixed strip orientation first frame installs the leading wheel that can only the rotation, and the setting of leading wheel can avoid paper to get into the support bar and be scraped broken by the support bar. The upper end face of one end of the lower fixing strip, which is opposite to the first rack, is vertically provided with a cutting knife, the cutting edge of the cutting knife is obliquely upwards arranged towards one side of the supporting strip, the highest position of the cutting edge of the cutting knife is higher than the highest position of the upper end of the supporting strip, and the lowest position of the cutting edge of the cutting knife is lower than the lowest position of the upper inclined surface of the supporting strip; the mounting frame is also fixedly provided with a second motor for driving the upper roller and the lower roller to synchronously and reversely rotate;

the two winding shaft-changing mechanisms are arranged at the rear end of the split slitting mechanism in parallel, each winding shaft-changing mechanism comprises a third rack and a winding shaft, two supporting beams for placing the winding shaft and two cross beams for conveying the winding shaft are fixedly arranged on the third rack, the two supporting beams are symmetrically distributed, the two cross beams are symmetrically distributed, the supporting beams and the cross beams are transversely arranged and the supporting beams are higher than the cross beams, and the length of the winding shaft is larger than the distance between the two supporting beams and also larger than the distance between the two cross beams; the upper end face of the cross beam is fixedly provided with a mounting seat close to the supporting beam, a roller which is transversely arranged and can only rotate is arranged between the two mounting seats, the roller is perpendicular to the first supporting beam, and the mounting seat is fixedly provided with a third motor for driving the roller to rotate; the outer sides of the two ends of the roller are respectively and vertically provided with a supporting plate which can only rotate around the central line of the roller, and the third rack is also provided with a power mechanism for driving the supporting plates to rotate; one end of the supporting plate is provided with a groove for placing the roll paper shaft, the cylindrical surface of the roller passes through the groove on the two supporting plates, the supporting plate is rotationally connected with an arc-shaped plate which can limit the roll paper shaft in the groove, and the supporting plate is also provided with a first cylinder for driving the arc-shaped plate to rotate; the side of the supporting beam is rotationally connected with a connecting arm which can convey a roll paper shaft on the supporting beam into a groove in the supporting plate, a stirring arm which is used for stirring the roll paper shaft to move along the beam is rotationally connected with the third frame, a stop block which is used for blocking the roll paper shaft is arranged at the position of the beam, which is located between the stirring arm and the stop block, the third frame is rotationally connected with a swinging arm which can stir the roll paper shaft to move along the beam and press the roll paper shaft on the stop block, and a second cylinder which is used for driving the connecting arm to rotate, a third cylinder which is used for driving the stirring arm to rotate and a fourth cylinder which is used for driving the swinging arm to rotate are also arranged on the third frame.

In the above scheme, when the split slitting mechanism is arranged to slit paper, a crease is generated on the paper, and then the paper is slit by using the cutting knife, so that the paper cutting quality is better. Paper after slitting is rolled by the rolling shaft changing mechanism, automatic shaft changing operation of a roll paper shaft can be performed after rolling, manual shaft changing is not needed, and the paper winding machine is very convenient and can greatly improve work production efficiency.

Preferably, the second rack comprises a base, support frames are vertically and fixedly arranged on two sides of the upper end face of the base, a transverse frame is fixedly arranged between the upper ends of the support frames, the upper fixing strip is fixed on the transverse frame, a fixing table with an isosceles trapezoid structure is fixedly arranged in the middle of the upper end face of the base, and the lower fixing strip is fixed on the fixing table; the mounting frame is fixed on the supporting frame.

Preferably, the second frame is provided with a screw hole which is transversely arranged, a fourth frame is further arranged below the second frame, a guide bar parallel to the transverse roller is fixedly arranged on the fourth frame, the second frame is slidably arranged on the guide bar, a screw rod which is used for driving the second frame to move along the guide bar is further arranged on the fourth frame, the screw rod can only rotate and is arranged on the fourth frame and is in threaded connection with the screw hole, the screw rod is parallel to the guide bar, and a servo motor which is used for driving the screw rod to rotate is further fixedly arranged on the fourth frame. The screw rod is driven to rotate by the servo motor, and the position of the whole second rack can be transversely adjusted, so that the supporting bars and the cutting knives on the second rack are aligned with the middle of the paper conveyed by the transverse roller on the first rack.

Preferably, a limiting block is fixedly arranged on each of the front side and the rear side of the upper end face of the supporting beam; the upper end face of the connecting arm is provided with a guide inclined plane which is inclined downwards towards the outer end of the connecting arm, the outer end of the connecting arm is fixedly provided with a limit hook which is convex towards the upper end of the guide inclined plane, and when the connecting arm lifts the roll paper shaft from the supporting beam and is higher than the limit block, the guide inclined plane is still inclined downwards. The arrangement enables the connecting arm to upwards lift the paper winding shaft upwards to pass through the limiting block when rotating upwards, and then enables the paper winding shaft to downwards slide along the guide inclined plane.

Preferably, the connection part of the guide inclined plane and the limit hook is in a circular arc structure.

Preferably, the upper end of the poking arm is fixedly connected with a poking piece of a C-shaped structure, and when the poking arm is perpendicular to the upper end face of the cross beam, the lowest position of the inner side of the opening of the poking piece is lower than the upper end face of the cross beam. The setting can make the arm of stirring effectually stir the stock form axle and remove along the crossbeam like this.

Preferably, the swinging arm is fixedly provided with a pressing plate with a C-shaped structure. The setting can make the effectual stock form axle of stirring of swing arm remove along the crossbeam and can compress tightly the stock form axle on the dog like this.

Preferably, the paper winding shaft comprises two bases, a rotating shaft which can only rotate relative to the bases is rotatably connected between the two bases, and the bases and the rotating shaft are positioned on the same straight line; the rotation that influences the axis of rotation when setting up like this can avoid the arc to compress tightly the base, and the axis of rotation can not rotate by a wide margin when also can the time the base removes along the crossbeam, can guarantee the stability of the axis of rotation of coiling having the paper. The base is of a cylindrical structure, and a first circular ring groove matched with the supporting beam, a second circular ring groove matched with the supporting plate, a third circular ring groove matched with the cross beam, a fourth circular ring groove matched with the toggle piece and a fifth circular ring groove matched with the pressing plate are arranged on the outer side face of the base. The first circular ring groove, the second circular ring groove, the third circular ring groove, the fourth circular ring groove and the fifth circular ring groove are arranged, so that the roll paper shaft is not easy to move left and right when moving, and is more stable.

Preferably, the stop block is rotatably connected with the cross beam, and a fifth cylinder for driving the stop block to rotate is fixedly arranged on the third frame.

Preferably, the support plate is fixedly provided with a circular arc-shaped rack arranged around the central line of the roller, the power mechanism comprises a stepping motor fixed on the third frame, and a gear meshed with the circular arc-shaped rack is fixedly arranged on a rotating shaft of the stepping motor. The gear is driven to rotate by the stepping motor, and then the supporting plate can be driven to rotate by the arc-shaped rack meshed with the moon gear.

Compared with the prior art, the invention has the following beneficial effects: the invention can improve the quality of paper slitting, can automatically roll and change the shaft, and can greatly improve the work production efficiency.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a perspective view of a first housing portion of the split-cut mechanism;

FIG. 3 is a perspective view of a second housing and a fourth housing portion of the split-cut mechanism;

FIG. 4 is a schematic view of the position structure between the lower fixing strip, the support strip, the guide wheel and the cutting knife;

FIG. 5 is a perspective view of the winding and spindle changing mechanism;

FIG. 6 is a front view of the spool;

the marks in the figure: 1. the split slitting mechanism 2, the winding shaft-changing mechanism 3, the first rack 4, the second rack 5, the transverse rollers 6, the first motor 7, the channel 8, the upper fixing strip 9, the lower fixing strip 10, the mounting rack 11, the roller group 12, the upper roller 13, the lower roller 14, the supporting strip 15 and the inclined plane, 16, guide wheels, 17, a cutting knife, 18, a second motor, 19, a third frame, 20, a winding shaft, 21, a base, 22, a rotating shaft, 23, a supporting beam, 24, a cross beam, 25, a mounting seat, 26, a roller, 27, a third motor, 28, a supporting plate, 29, a power mechanism, 30, a groove, 31, an arc plate, 32, a first cylinder, 33, a connecting arm, 34, a toggle arm, 35, a stop block, 36, a swing arm, 37, a second cylinder, 38, a third cylinder, 39, a fourth cylinder, 40, a base, 41, a support frame, 42, a cross frame, 43, a fixed table, 44, a screw hole, 45, a fourth frame, 46, a guide bar, 47, a screw rod, 48, a servo motor, 49, a stopper, 50, a guide inclined plane, 51, a limit hook, 52, a toggle piece, 53, a pressing plate, 54, a fifth cylinder, 55, a circular arc rack, 56, a stepping motor, 57, a first circular ring groove, 58, a second circular ring groove, 59, a third circular ring groove, 60, a fourth circular ring groove, 61 and a fifth circular ring groove.

Detailed Description

The invention is further described below with reference to embodiments shown in the drawings in which:

example 1

As shown in fig. 1-6, a paper pre-folding, slitting and winding device comprises a split slitting mechanism 1 and two winding and shaft changing mechanisms 2; the split cutting mechanism 1 comprises a first rack 3 and a second rack 4 which are sequentially arranged, wherein two groups of transverse rollers 5 which are transversely arranged and a first motor 6 which is used for driving the transverse rollers 5 to rotate are arranged on the first rack 3; the second rack 4 is provided with a channel 7 which transversely penetrates through the front side and the rear side of the second rack 4, an upper fixing strip 8 and a lower fixing strip 9 which are arranged along the channel 7 are arranged in the channel 7, the upper fixing strip 8 and the lower fixing strip 9 are parallel to each other, the upper fixing strip 8 and the lower fixing strip 9 are positioned right above the lower fixing strip 9, the upper fixing strip 8 and the lower fixing strip 9 are respectively fixed on the second rack 4, a mounting frame 10 which is fixed on the second rack 4 is also respectively arranged on two sides of the lower fixing strip 9 in the channel 7, two groups of roller sets 11 are respectively arranged on two sides of the upper fixing strip 8 in the channel 7, the roller sets 11 on two sides of the upper fixing strip 8 are symmetrically distributed, the roller sets 11 comprise an upper roller 12 and a lower roller 13 which are matched with each other, the upper roller 12 is gradually downwards inclined from one end close to the other end of the upper fixing strip 8, the upper roller 12 is positioned right above the lower roller 13, the upper roller 12 and the lower roller 13 are parallel to each other, a gap for conveying paper is arranged between the upper roller 12 and the lower roller 13, two groups of roller sets 11 can only rotate about 10 between the upper roller 12 and the lower roller 13, and the upper roller sets 11 can rotate about 10 and can only be fixed between the upper roller sets and the lower roller sets 10 and the upper roller sets and the lower roller sets 8; the upper end surface of the lower fixing strip 9 is fixedly provided with a supporting strip 14 which is arranged along the length square of the lower fixing strip 9, the upper end surface of the supporting strip 14 is downwards inclined from the middle to two sides to form two inclined surfaces 15, and the inclination angle of the inclined surfaces 15 is the same as that of the upper roller 12; the planes of the gaps in all roller groups 11 positioned on the same side of the upper fixing strip 8 and the corresponding inclined planes 15 on the supporting strip 14 are positioned on the same plane, and the angle between the two inclined planes 15 is 170-185 degrees; the lower fixing strip 9 is provided with a guide wheel 16 which can only rotate towards one end of the first frame 3, the upper end surface of one end of the lower fixing strip 9, which is opposite to the first frame 3, is vertically provided with a cutting knife 17, the cutting edge of the cutting knife 17 is obliquely upwards arranged towards one side of the supporting strip 14, the highest position of the cutting edge of the cutting knife 17 is higher than the highest position of the upper end of the supporting strip 14, and the lowest position of the cutting edge of the cutting knife 17 is lower than the lowest position of the upper inclined surface 15 of the supporting strip 14; the mounting frame 10 is also fixedly provided with a second motor 18 for driving the upper roller 12 and the lower roller 13 to synchronously and reversely rotate.

The second rack 4 comprises a base 40, support frames 41 are vertically and fixedly arranged on two sides of the upper end face of the base 40, a transverse frame 42 is fixedly arranged between the upper ends of the support frames 41, the upper fixing strip 8 is fixed on the transverse frame 42, a fixing table 43 with an isosceles trapezoid structure is fixedly arranged in the middle of the upper end face of the base 40, and the lower fixing strip 9 is fixed on the fixing table 43; the mounting frame 10 is fixed to the support frame 41. The second frame 4 is provided with a screw hole 44 which is transversely arranged, a fourth frame 45 is further arranged below the second frame 4, a guide strip 46 which is parallel to the transverse roller 5 is fixedly arranged on the fourth frame 45, the second frame 4 is slidably arranged on the guide strip 46, a screw rod 47 which is used for driving the second frame 4 to move along the guide strip 46 is further arranged on the fourth frame 45, the screw rod 47 is only rotatably arranged on the fourth frame 45, the screw rod 47 is in threaded connection with the screw hole 44, the screw rod 47 is parallel to the guide strip 46, and a servo motor 48 which is used for driving the screw rod 47 to rotate is further fixedly arranged on the fourth frame 45.

The two winding shaft-changing mechanisms 2 are arranged at the rear end of the split slitting mechanism 1 in parallel, the winding shaft-changing mechanisms 2 comprise a third rack 19 and a roll paper shaft 20, two supporting beams 23 for placing the roll paper shaft 20 and two cross beams 24 for conveying the roll paper shaft 20 are fixedly arranged on the third rack 19, the two supporting beams 23 are symmetrically distributed, and limiting blocks 49 are fixedly arranged on the front side and the rear side of the upper end face of each supporting beam 23; the two cross beams 24 are symmetrically distributed, the supporting beams 23 and the cross beams 24 are transversely arranged, the supporting beams 23 are higher than the cross beams 24, and the length of the paper winding shaft 20 is larger than the distance between the two supporting beams 23 and the distance between the two cross beams 24. A mounting seat 25 is fixedly arranged on the upper end surface of the cross beam 24 near the supporting beam 23, a roller 26 which is transversely arranged and can only rotate is arranged between the two mounting seats 25, the roller 26 is perpendicular to the first supporting beam 23, and a third motor 27 for driving the roller 26 to rotate is fixedly arranged on the mounting seat 25; the outer sides of the two ends of the roller 26 are respectively and vertically provided with a supporting plate 28 which can only rotate around the central line of the roller 26, the supporting plate 28 is fixedly provided with a circular arc-shaped rack 55 which is arranged around the central line of the roller 26, the third rack 19 is also provided with a power mechanism 29 which is used for driving the supporting plate 28 to rotate, the power mechanism 29 comprises a stepping motor 56 which is fixed on the third rack 19, and a gear which is meshed with the circular arc-shaped rack 55 is fixedly arranged on a rotating shaft of the stepping motor 56. One end of the supporting plate 28 is provided with a groove 30 for placing the roll paper shaft 20, the cylindrical surface of the roller 26 passes between the grooves 30 on the two supporting plates 28, the supporting plates 28 are rotatably connected with an arc plate 31 which can limit the roll paper shaft 20 in the grooves 30, and the supporting plates 28 are also provided with a first air cylinder 32 for driving the arc plate 31 to rotate.

The side of the supporting beam 23 is rotatably connected with a connecting arm 33 which can convey the roll paper shaft 20 on the supporting beam 23 into the groove 30 on the supporting plate 28, the upper end surface of the connecting arm 33 is provided with a guide inclined surface 50 which is inclined downwards towards the outer end of the connecting arm 33, the outer end of the connecting arm 33 is fixedly provided with a limit hook 51 which is protruded towards the upper end of the guide inclined surface 50, and the joint of the guide inclined surface 50 and the limit hook 51 is in a circular arc structure. When the web spool 20 is lifted from the support beam 23 by the link arm 33 and is higher than the stopper 49, the guide slope 50 is still inclined downward. The third stand 19 is further rotatably connected with a toggle arm 34 for toggling the roll paper shaft 20 to move along the cross beam 24, the upper end of the toggle arm 34 is fixedly connected with a toggle piece 52 with a C-shaped structure, and when the toggle arm 34 is perpendicular to the upper end surface of the cross beam 24, the lowest position of the inner side of the opening of the toggle piece 52 is lower than the upper end surface of the cross beam 24. The position of the cross beam 24 away from the supporting beam 23 is provided with a stop block 35 for blocking the roll paper shaft 20, the stop block 35 is rotationally connected with the cross beam 24, and the third frame 19 is also fixedly provided with a fifth cylinder 54 for driving the stop block 35 to rotate. The third frame 19 is further rotatably connected with a swinging arm 36 which can toggle the roll paper shaft 20 to move along the cross beam 24 and can press the roll paper shaft 20 on the stop block 35 at a position between the toggle arm 34 and the stop block 35, and a pressing plate 53 with a C-shaped structure is fixedly arranged on the swinging arm 36. The third frame 19 is further provided with a second air cylinder 37 for driving the connecting arm 33 to rotate, a third air cylinder 38 for driving the shifting arm 34 to rotate, and a fourth air cylinder 39 for driving the swinging arm 36 to rotate.

The roll paper shaft 20 comprises two bases 21, a rotation shaft 22 which can only rotate relative to the bases 21 is rotatably connected between the two bases 21, and the bases 21 and the rotation shaft 22 are positioned on the same straight line. The base 21 is of a cylindrical structure, and a first circular ring groove 57 matched with the supporting beam 23, a second circular ring groove 58 matched with the supporting plate 28, a third circular ring groove 59 matched with the cross beam 24, a fourth circular ring groove 60 matched with the toggle piece 52 and a fifth circular ring groove 61 matched with the pressing plate 53 are arranged on the outer side surface of the base 21.

When the paper is produced, firstly, the paper passes through the first frame 3 on the split slitting mechanism 1, the first motor 6 can drive the transverse rollers 5 to rotate, only one transverse roller 5 in each group of transverse rollers 5 is driven by the first motor 6, the other transverse roller 5 can synchronously rotate reversely under the action of friction force, the two transverse rollers 5 in the same group can compress and convey the paper, then the paper passes through the roller group 11 on the second frame 4, the upper roller 12 and the lower roller 13 in the roller 26 group are matched and can compress and convey the paper, and simultaneously, the two inclined surfaces 15 on the supporting bar 14 are matched, so that folds are generated on the paper at the joint between the two inclined surfaces 15 on the supporting bar 14 when the paper passes through the supporting bar 14, finally, the paper is split along the folds by the cutting knife 17, the cutting edge of the cutting knife 17 is obliquely upwards arranged towards one side of the supporting bar 14, and after the paper is subjected to multiple experiments by the applicant, the arrangement and the operation flow, the cutting edge is smoother on the cutting position of the paper, and the cutting quality is better. The cut paper is divided into two pieces and respectively enters two winding and shaft changing mechanisms 2.

When the winding and shaft changing mechanism 2 works, the roll paper shaft 20 is placed between the two supporting beams 23 in advance, namely, the two bases 21 on the roll paper shaft 20 are respectively erected on the two supporting beams 23, the second air cylinder 37 is controlled to drive the connecting arm 33 to rotate upwards, the connecting arm 33 lifts the roll paper shaft 20 upwards until the roll paper shaft 20 is higher than the limiting block 49, the limiting block 49 can slide downwards along the guide inclined plane 50 on the connecting arm 33 to the position of the limiting hook 51, the second air cylinder 37 is controlled to drive the connecting arm 33 to rotate downwards until the roll paper shaft 20 is embedded in the groove 30 on the supporting plate 28, at the moment, the roll paper shaft 20 does not continue to rotate downwards along with the connecting arm 33, and the two bases 21 on the roll paper shaft 20 are respectively embedded in the two grooves 30; then the first cylinder 32 is controlled to drive the arc plate 31 on the supporting plate 28 to rotate, so that the arc plate 31 presses the base 21 in the groove 30, at the moment, the rotating shaft 22 on the paper winding shaft 20 is attached to the roller 26, a worker dials paper, the paper passes between the paper winding shaft 20 and the roller 26 and is partially wound on the rotating shaft 22 of the paper winding shaft 20, the third motor 27 drives the roller 26 to rotate, the rotating shaft 22 wound with partial paper winds rotates along with the roller 26 and the rotating shaft 22 on the paper winding shaft 20 always winds paper, during the process, the first cylinder 32 drives the arc plate 31 to rotate to gradually loosen the base 21 on the paper winding shaft 20, the base 21 gradually moves towards the opening of the groove 30 along with more paper winding on the paper winding shaft 20, and meanwhile, the power mechanism 29 drives the supporting plate 28 to rotate until the base 21 is erected on the cross beam 24, at the moment, the arc plate 31 completely loosens the base 21; the worker separates the roll paper on the roll paper shaft 20 from the roll paper on the roller 26, then controls the third cylinder 38 to drive the shifting arm 34 to rotate, the shifting arm 34 shifts the roll paper shaft 20 to move to the vicinity of the swinging arm 36 along the cross beam 24, then controls the fourth cylinder 39 to drive the swinging arm 36 to rotate, so that the swinging arm 36 shifts the roll paper shaft 20 to move along the cross beam 24 and can press the roll paper shaft 20 on the stop block 35, at the moment, the worker can control travelling mechanisms in the factory building to be hooked on the roll paper shaft 20 by using hooks to hang the roll paper shaft 20 with the roll paper wound, before hanging, the fifth cylinder 54 can be controlled to drive the stop block 35 to rotate downwards, and the fourth cylinder 39 is controlled to drive the swinging arm 36 to return to the initial position, so that the arrangement of the stop block 35 and the swinging arm 36 is prevented from affecting the travelling mechanisms to hoist the roll paper shaft 20. In the above process, the control power mechanism 29 drives the support plate 28 to return to the initial position, and the third cylinder 38 is controlled to drive the dial arm 34 to return to the initial position. When the roll paper shaft 20 is separated from the roller 26, the second air cylinder 37 can be controlled to drive the connecting arm 33 to rotate upwards, the next roll paper shaft 20 is moved, the whole process can be continuously operated, automatic shaft replacement is realized, the operation is very convenient, and the work production efficiency can be greatly improved.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A paper pre-folding, slitting and winding device is characterized by comprising a split slitting mechanism and two winding and shaft changing mechanisms,

the split cutting mechanism comprises a first rack and a second rack which are sequentially arranged, wherein a plurality of groups of transverse rollers which are transversely arranged and a first motor for driving the transverse rollers to rotate are arranged on the first rack; the second rack is provided with a channel which transversely penetrates through the front side and the rear side of the second rack, an upper fixing strip and a lower fixing strip which are arranged along the channel are arranged in the channel, the upper fixing strip and the lower fixing strip are parallel to each other and are positioned right above the lower fixing strip, the upper fixing strip and the lower fixing strip are respectively fixed on the second rack, the two sides of the lower fixing strip in the channel are respectively provided with a mounting frame which is fixed on the second rack, at least two groups of roller sets are respectively arranged on the two sides of the upper fixing strip in the channel, the roller sets on the two sides of the upper fixing strip are symmetrically distributed, the roller sets comprise an upper roller and a lower roller which are matched with each other, the upper roller is gradually arranged downwards from one end close to the upper fixing strip to the other end, the upper roller is positioned right above the lower roller and is parallel to the lower roller, a gap for conveying paper is arranged between the upper roller and the lower roller, the upper roller is only arranged between the upper fixing strip and the mounting frame in a rotating manner, and the lower roller is only arranged between the lower fixing strip and the mounting frame in a self-conveying manner; the upper end face of the lower fixing strip is fixedly provided with a supporting strip which is arranged along the length square of the lower fixing strip, the upper end face of the supporting strip is downwards inclined from the middle to two sides to form two inclined faces, and the inclination angle of the inclined faces is the same as that of the upper roller; the planes of the gaps in all roller groups positioned on the same side of the upper fixing strip are positioned on the same plane with the corresponding inclined planes on the supporting strip; a cutting knife is vertically arranged on the upper end surface of one end of the lower fixing strip, which is opposite to the first rack; the mounting frame is also fixedly provided with a second motor for driving the upper roller and the lower roller to synchronously and reversely rotate;

the two winding shaft-changing mechanisms are arranged at the rear ends of the split slitting mechanisms in parallel, each winding shaft-changing mechanism comprises a third rack and a roll paper shaft, each roll paper shaft comprises two bases, a rotating shaft which can only rotate relative to the base is rotatably connected between the two bases, and the bases and the rotating shafts are positioned on the same straight line; the third frame is fixedly provided with two supporting beams for placing the roll paper shaft and two cross beams for conveying the roll paper shaft, the two supporting beams are symmetrically distributed, the two cross beams are symmetrically distributed, the supporting beams and the cross beams are transversely arranged and are higher than the cross beams, and the length of the roll paper shaft is larger than the distance between the two supporting beams and also larger than the distance between the two cross beams; the upper end face of the cross beam is fixedly provided with a mounting seat close to the supporting beam, a roller which is transversely arranged and can only rotate is arranged between the two mounting seats, the roller is perpendicular to the first supporting beam, and the mounting seat is fixedly provided with a third motor for driving the roller to rotate; the outer sides of the two ends of the roller are respectively and vertically provided with a supporting plate which can only rotate around the central line of the roller, and the third rack is also provided with a power mechanism for driving the supporting plates to rotate; one end of the supporting plate is provided with a groove for placing the roll paper shaft, the cylindrical surface of the roller passes through the groove on the two supporting plates, the supporting plate is rotationally connected with an arc-shaped plate which can limit the roll paper shaft in the groove, and the supporting plate is also provided with a first cylinder for driving the arc-shaped plate to rotate; the side of the supporting beam is rotationally connected with a connecting arm which can convey a roll paper shaft on the supporting beam into a groove in the supporting plate, a stirring arm which is used for stirring the roll paper shaft to move along the cross beam is rotationally connected to the third frame, a stirring piece of a C-shaped structure is fixedly connected to the upper end of the stirring arm, when the stirring arm is vertical to the upper end surface of the cross beam, the lowest position of the inner side of an opening of the stirring piece is lower than the upper end surface of the cross beam, a stop block for blocking the roll paper shaft is arranged at the position, away from the supporting beam, of the cross beam, a swinging arm which can stir the roll paper shaft to move along the cross beam and can press the roll paper shaft on the stop block is rotationally connected to the third frame, a pressing plate of the C-shaped structure is fixedly arranged on the swinging arm, and a second cylinder for driving the rotation of the connecting arm, a third cylinder for driving the stirring arm to rotate and a fourth cylinder for driving the swinging arm to rotate are also arranged on the third frame; the base is of a cylindrical structure, and a first circular ring groove matched with the supporting beam, a second circular ring groove matched with the supporting plate, a third circular ring groove matched with the cross beam, a fourth circular ring groove matched with the toggle piece and a fifth circular ring groove matched with the pressing plate are arranged on the outer side face of the base.

2. The paper pre-folding, slitting and winding device according to claim 1, wherein the second frame comprises a base, supporting frames are vertically and fixedly arranged on two sides of the upper end face of the base, a transverse frame is fixedly arranged between the upper ends of the supporting frames, the upper fixing strip is fixed on the transverse frame, a fixing table is fixedly arranged on the upper end face of the base, and the lower fixing strip is fixed on the fixing table; the mounting frame is fixed on the supporting frame.

3. The paper pre-folding, slitting and winding device according to claim 2, wherein a screw hole is formed in the second frame, a fourth frame is further arranged below the second frame, a guide bar parallel to the transverse roller is fixedly arranged on the fourth frame, the second frame is slidably arranged on the guide bar, a screw rod for driving the second frame to move along the guide bar is further arranged on the fourth frame, the screw rod is only rotatably arranged on the fourth frame and is in threaded connection with the screw hole, the screw rod is parallel to the guide bar, and a servo motor for driving the screw rod to rotate is fixedly arranged on the fourth frame.

4. The paper pre-folding, slitting and winding device according to claim 1, wherein a limiting block is fixedly arranged on the front side and the rear side of the upper end face of the supporting beam respectively; the upper end face of the connecting arm is provided with a guide inclined plane which is inclined downwards towards the outer end of the connecting arm, the outer end of the connecting arm is fixedly provided with a limit hook which is convex towards the upper end of the guide inclined plane, and when the connecting arm lifts the roll paper shaft from the supporting beam and is higher than the limit block, the guide inclined plane is still inclined downwards.

5. The paper pre-folding, slitting and winding device according to claim 4, wherein the connection part of the guide inclined surface and the limiting hook is in a circular arc structure.

6. The paper pre-folding, slitting and winding device according to claim 1, wherein the stop block is rotatably connected with the cross beam, and a fifth cylinder for driving the stop block to rotate is fixedly arranged on the third frame.

7. The paper pre-folding, slitting and winding device according to claim 1, wherein the supporting plate is fixedly provided with a circular arc-shaped rack arranged around the central line of the roller, the power mechanism comprises a stepping motor fixed on the third frame, and a gear meshed with the circular arc-shaped rack is fixedly arranged on a rotating shaft of the stepping motor.