CN111660608A

CN111660608A - Paper folding and breaking conveying device

Info

Publication number: CN111660608A
Application number: CN202010702199.8A
Authority: CN
Inventors: 罗骏; 罗小龙; 黄文芳
Original assignee: Foshan Junlian Intelligent Equipment Co ltd
Current assignee: Foshan Junlian Intelligent Equipment Co ltd
Priority date: 2020-07-18
Filing date: 2020-07-18
Publication date: 2020-09-15

Abstract

The invention discloses a paper folding breaking and conveying device which comprises a rack, wherein a conveying roller set and a paper folding conveying mechanism are arranged on the rack, the conveying speed of the paper folding conveying mechanism is higher than that of the conveying roller set, the paper folding conveying mechanism comprises a first rotating roller and a second rotating roller, an inwards concave paper folding space is formed in the circumferential side surface of the first rotating roller, a movable push plate capable of enabling the end part of a paper sheet unit to extend into the paper folding space is movably arranged on the second rotating roller, a movable clamping plate located in the paper folding space is movably arranged on the first rotating roller, the movable clamping plate clamps the end part of the paper sheet unit in the paper folding space to form a folded edge, and the paper sheet unit is broken from paper and conveyed forwards along with the rotation of the first rotating roller. The paper folding and snapping device separates paper into the paper sheet units by using a simple structure, and the separated paper sheet units can be automatically positioned and sequenced to adapt to automatic production.

Description

Paper folding and breaking conveying device

Technical Field

The invention relates to the technical field of paper bag manufacturing, in particular to a paper folding stretch-breaking conveying device.

Background

In the current society, along with the popularization of environmental awareness, paper bags are the first choice of people to replace plastic bags. As shown in fig. 1, paper bags are often required to divide a paper sheet 100 having a supporting strength into a plurality of paper sheet units 101 having equal lengths in a production process, each paper sheet unit 101 corresponds to one paper bag, and in an automated production, in order to maintain production continuity, it is a common practice to first form a plurality of tear lines at equal intervals on the paper sheet 100, then to stretch and tear at the position of each tear line to obtain a plurality of paper sheet units 101, and these paper sheet units 101 are transported to a next process for use. The common paper breaking device is complex in structure, the broken paper unit 101 cannot be directly used, and manual work or equipment needs to be used for repositioning and sequencing, so that the production efficiency of paper bags is affected.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the paper folding and breaking conveying device which is simple in structure, high in working efficiency and capable of accurately positioning and sequencing the broken paper units.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a folded paper stretch-break conveyor comprising: a frame, a conveying roller group and a paper folding conveying mechanism for receiving the paper output by the conveying roller group are arranged on the frame, the transmission rate of the paper folding and conveying mechanism is higher than that of the conveying roller group, the paper folding and conveying mechanism comprises a first rotating roller and a second rotating roller which are rotatably arranged on the rack, a gap for conveying paper is arranged between the first rotating roller and the second rotating roller, an inwards concave paper folding space is arranged on the circumferential side surface of the first rotating roller, the second rotating roller is movably provided with a movable push plate which can make the end part of the paper sheet unit extend into the paper folding space, the first rotating roller is movably provided with a movable clamping plate positioned in the paper folding space, the movable clamping plate clamps the end part of the paper sheet unit in the paper folding space to form a folded edge, and the paper sheet unit rotates along with the first rotating roller to be pulled off from paper and conveyed forwards.

When the paper folding and breaking device works, paper conveyed from the conveying roller group enters a gap between the first rotating roller and the second rotating roller, the movable push plate pushes the end of one paper sheet unit into a paper folding space, then the movable clamping plate clamps the end of the paper sheet unit, the paper sheet unit is broken and separated from the paper under the differential speed condition of the paper folding conveying mechanism and the conveying roller group, then the paper sheet unit is conveyed forwards to equipment of the next procedure along with the second rotating roller, so that the paper sheet is separated into a plurality of paper sheet units, and the separated paper sheet units can be automatically positioned and sequenced to adapt to automatic production.

As a preferred embodiment of the present invention, the movable nip plate is rotatably provided on the first rotating roller within the paper folding space by a first pivot shaft to which a first driving mechanism is connected that drives the forward and reverse rotations thereof so that the movable nip plate periodically extends outward and converges inward. The speed of the periodic movement of the movable clamping plate can be improved through the driving mode, and the production efficiency is improved.

As a preferred embodiment of the present invention, the first driving mechanism includes a first rotating arm fixedly disposed on the first pivot, the first rotating arm has two free ends, one free end of the first rotating arm is provided with a first rotating wheel member, the frame is fixedly provided with a rotating disc member coaxial with the first pivot, the rotating disc member is provided with an arc guide surface capable of abutting against the first rotating wheel member, the other free end of the first rotating arm is connected with a first elastic member for driving the movable clamp plate to extend outward and return, the first rotating roller is fixedly provided with a limit block capable of abutting against the first rotating arm to limit a swing angle of the movable clamp plate, and the first rotating wheel member can abut against the arc guide surface under the action of the first elastic member to enable the movable clamp plate to converge inward to clamp the paper sheet unit. When the first rotating roller rotates, the first rotating roller rotates relative to the rotating disc piece, the first rotating wheel piece on the first rotating arm enters the arc guide surface to enable the first pivot to rotate for a certain angle, and further the movable clamping plate clamps the end part of the paper sheet unit.

In order to enable the first rotating member to smoothly enter and exit from the arc guide surface, one end of the arc guide surface is provided with a first guide curved surface for guiding the first rotating member to enter the arc guide surface, and the other end of the arc guide surface is provided with a second guide curved surface for guiding the first rotating member to separate from the arc guide surface.

In some embodiments of the present invention, a side surface of the first pivot is provided with a first mounting plane extending along the height thereof, the movable clamping plate is detachably mounted on the first mounting plane through a first pressing strip, and the first pressing strip is connected with the first mounting plane through a threaded structure.

Preferably, the movable push plate is rotatably provided on the second rotating roller by a second pivot shaft to which a second driving mechanism for driving the forward and reverse rotation thereof to periodically extend and converge the movable push plate outwardly and inwardly is connected. The speed of the periodic motion of the movable push plate can be improved through the driving mode, and the production efficiency is improved.

As a preferred embodiment of the present invention, the second driving mechanism includes a second rotating arm fixedly disposed on the second pivot, a second rotating wheel member is disposed at a free end of the second rotating arm, a second elastic member for driving the movable pushing plate to inwardly converge is connected to the second rotating arm, and a cam portion periodically abutting against the second rotating wheel member so as to cause the movable pushing plate to outwardly extend into the paper folding space is disposed on the second pivot. The second driving mechanism of the structure makes full use of the rotation of the second rotating roller to link the movement of the movable push plate, and a power source is not required to be additionally arranged to drive the movable push plate to extend outwards and converge inwards, so that the structure is simple and ingenious.

In order to reduce the load of first rotor roll, first rotor roll is including rotating the first pivot that sets up in the frame, and upper end plate and lower end plate are installed respectively to the upper portion and the lower part of first pivot, be equipped with the roller portion that surrounds at first pivot outside between upper end plate and the lower end plate, it is regional to have a cavity between roller portion and the first pivot, the side of roller portion is equipped with the open slot that extends along vertical direction, this open slot with the cavity is regional to be linked together and encloses into the paper folding space.

Preferably, the circumferential perimeter of the first rotating roller is two or more times of the circumferential perimeter of the second rotating roller, and a plurality of abdicating grooves matched with the movable push plate are correspondingly formed in the circumferential wall surface of the first rotating roller. After one paper sheet unit is pulled off, the second rotating roller rotates for a circle again, and the movable push plate extends outwards to enter one of the abdicating grooves, so that adjacent paper sheet units after being pulled off are conveyed at a certain distance, and the paper sheet units can be used in the subsequent process conveniently.

Preferably, the movable clamping plate and/or the movable pushing plate are provided with adjusting structures capable of being adjusted in a telescopic mode towards the side face of the paper according to the thickness, the hardness and the like of different paper.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a sheet of paper having a tear line;

FIG. 2 is a schematic external view of the paper folding stretch-break conveyor of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 with a portion of the frame removed;

FIG. 4 is a simplified schematic diagram of the paper folding stretch-break conveyor of the present invention;

FIG. 5 is a schematic view of the combination of the first rotatable roller, the movable clamp plate and the first drive mechanism;

FIG. 6 is a schematic view of the structure of FIG. 5 from another perspective;

FIG. 7 is an exploded view of the first rotatable roller, the movable clamp plate and the first drive mechanism;

fig. 8 is a schematic structural view of a set of the second rotating roller, the movable push plate, and the second driving mechanism.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

Referring to fig. 1 to 4, a paper folding stretch-breaking conveying apparatus includes: the folding machine comprises a machine frame 1, wherein a conveying roller group 10 and a folding conveying mechanism used for receiving paper output by the conveying roller group 10 are arranged on the machine frame 1, the conveying speed of the folding conveying mechanism is higher than that of the conveying roller group 10, the folding conveying mechanism comprises a first rotating roller 20 and a second rotating roller 30 which are rotatably arranged on the machine frame 1, a gap used for conveying the paper 100 is formed between the first rotating roller 20 and the second rotating roller 30, an inwards concave paper folding space 4 is formed on the circumferential side surface of the first rotating roller 20, a movable push plate 6 capable of enabling the end part of a paper sheet unit 101 to extend into the paper folding space 4 is movably arranged on the second rotating roller 30, a movable clamping plate 5 positioned in the paper folding space 4 is movably arranged on the first rotating roller 20, and the end part of the paper sheet unit 101 is clamped in the paper folding space 4 by the movable clamping plate 5 to form a folded edge, the sheet unit 101 is pulled off the sheet 100 and conveyed forward by following the rotation of the first rotating roller 20.

When the paper folding and breaking device works, paper 100 conveyed from the conveying roller group 10 enters a gap between the first rotating roller 20 and the second rotating roller 30, the movable push plate 6 pushes the end part of one paper sheet unit 101 into the paper folding space 4, then the movable clamp plate 5 clamps the end part of the paper sheet unit 101, the paper sheet unit 101 is broken and separated from the paper 100 under the differential speed condition of the paper folding conveying mechanism and the conveying roller group 10, then the paper sheet unit 101 is conveyed forwards to equipment of the next process along with the second rotating roller 30, so that the paper 100 is separated into a plurality of paper sheet units 101, and the separated paper sheet units 101 can be automatically positioned and sequenced to adapt to automatic production.

Referring to fig. 4 to 7, as a preferred embodiment of the present invention, the movable nip plate 5 is rotatably disposed on the first rotating roller 20 and located inside the paper folding space 4 by a first pivot 51, and the first pivot 51 is connected with a first driving mechanism 70 that drives the first rotating roller to rotate forward and backward so that the movable nip plate 5 periodically extends outward and converges inward. The driving mode can improve the periodic motion speed of the movable clamping plate 5 and improve the production efficiency.

Referring to fig. 5 to 7, as a preferred embodiment of the present invention, the first driving mechanism 70 includes a first rotation arm 71 fixedly provided on the first pivot 51, said first turning arm 71 having two free ends, one free end of the first turning arm 71 being provided with a first turning wheel 72, a turntable 73 coaxial with the first pivot 51 is fixedly arranged on the frame 1, an arc guide surface 74 which can be abutted against the first rotating wheel 72 is arranged on the turntable 73, the other free end of the first rotating arm 71 is connected with a first elastic member 75 which drives the movable clamping plate 5 to extend outwards and reset, a limit block 76 which can be abutted against the first rotating arm 71 to limit the swing angle of the movable clamp plate 5 is fixedly arranged on the first rotating roller 20, the first rotating member 72 can abut against the circular arc guide surface 74 under the action of the first elastic member 75 to cause the movable clamp plate 5 to converge inward to clamp the sheet unit 101. When the first rotating roller 20 rotates, that is, rotates relative to the turntable member 73, the first rotating member 72 on the first rotating arm 71 enters the circular arc guide surface 74 to rotate the first pivot shaft 51 by a certain angle, and the movable clamp plate 5 clamps the end of the paper sheet unit 101, in the process, the first elastic member 75 urges the first rotary member 72 against the circular arc guide surface 74, and when the first rotating roller 20 rotates until the first rotating wheel 72 is disengaged from the circular arc guide surface 74, the first rotating arm 71 rotates by a certain angle by the first elastic member 75 to cause the movable clamp plate 5 to protrude outward to be separated from the sheet unit 101, the first driving mechanism 70 with the above structure makes full use of the rotation of the first rotating roller 20 to link the movement of the movable clamp plate 5, and no additional power source is needed to drive the movable clamp plate 5 to extend outwards and converge inwards, so that the structure is simple, reliable and ingenious.

Referring to fig. 6, in order to allow the first runner 72 to smoothly enter and exit the circular arc guide surface 74, one end of the circular arc guide surface 74 is provided with a first guide curved surface 741 for guiding the first runner 72 into the circular arc guide surface 74, and the other end of the circular arc guide surface 74 is provided with a second guide curved surface 742 for guiding the first runner 72 out of the circular arc guide surface 74.

Referring to fig. 7, in some embodiments of the present invention, a first mounting plane 52 extending along the height of the first pivot 51 is provided at a side of the first pivot, the movable clamp 5 is detachably mounted on the first mounting plane 52 by a first pressing bar 53, and the first pressing bar 53 is connected with the first mounting plane 52 by a screw structure.

Referring to fig. 8, preferably, the movable push plate 6 is rotatably provided on the second rotating roller 30 by a second pivot 61, and the second pivot 61 is connected with a second driving mechanism 80 that drives the second pivot 61 to rotate in the forward and reverse directions so that the movable push plate 6 is periodically extended outward and converged inward. The periodic motion speed of the movable push plate 6 can be improved through the driving mode, and the production efficiency is improved.

Referring to fig. 8, as a preferred embodiment of the present invention, the second driving mechanism 80 includes a second rotating arm 81 fixedly disposed on the second pivot 61, a second rotating wheel 82 is disposed at a free end of the second rotating arm 81, a second elastic member 83 for driving the movable pushing plate 6 to converge inward is connected to the second rotating arm 81, and a cam portion 84 periodically abutting against the second rotating wheel 82 to cause the movable pushing plate 6 to extend outward into the paper folding space 4 is disposed on the second pivot 61. The second driving mechanism 80 with the above structure makes full use of the rotation of the second rotating roller 30 to link the movement of the movable push plate 6, and does not need to additionally provide a power source to drive the movable push plate 6 to extend outwards and converge inwards, so that the structure is simple and ingenious. The first rotating wheel element 72 and the second rotating wheel element 82 are both rollers, so that friction force of relative movement can be reduced.

Referring to fig. 7, in order to reduce the load of the first rotating roller 20, the first rotating roller 20 includes a first rotating shaft 21 rotatably disposed on the frame 1, an upper end plate 22 and a lower end plate 23 are respectively mounted on the upper portion and the lower portion of the first rotating shaft 21, a roller portion 24 surrounding the outside of the first rotating shaft 21 is disposed between the upper end plate 22 and the lower end plate 23, a hollow area is disposed between the roller portion 24 and the first rotating shaft 21, and an open slot extending in a vertical direction is disposed on a side surface of the roller portion 24, and is communicated with the hollow area and surrounds the paper folding space 4.

Referring to fig. 2, the circumferential perimeter of the first rotating roller 20 is about twice the circumferential perimeter of the second rotating roller 30, and the circumferential wall surface of the first rotating roller 20 is correspondingly provided with an abdicating groove 25 matched with the movable pushing plate 6. After one paper sheet unit 101 is pulled off, the second rotating roller 30 rotates once again, the movable push plate 6 extends into the abdicating groove 25 under the action of the first driving mechanism 70, at the moment, the other paper sheet unit 101 at the rear is conveyed at a slower speed by the conveying roller group 10, when the paper sheet unit 101 at the rear is conveyed to the vicinity of the paper folding space 4, the movable push plate 6 extends into the paper folding space 4 again to push the paper sheet unit 101 to one side of the first rotating roller 20, and therefore the adjacent paper sheet units 101 after being pulled off can be conveyed at a certain distance, and the use of the subsequent process is facilitated.

Preferably, according to the thickness, hardness and the like of different paper sheets 100, the movable clamping plate 5 and/or the movable pushing plate 6 are provided with an adjusting structure capable of being telescopically adjusted towards the side surface of the paper sheet 100, the adjusting structure may be a waist-shaped hole provided on the movable clamping plate 5 or the movable pushing plate 6, the length extending direction of the waist-shaped hole faces the side surface of the paper sheet 100, and the above adjusting structure is a commonly used technical means by those skilled in the art and will not be further described herein.

The above examples are merely preferred embodiments of the present invention, and other embodiments of the present invention are possible, such as a reasonable combination of the technical solutions described in the examples. Those skilled in the art can make equivalent changes or substitutions without departing from the spirit of the present invention, and such equivalent changes or substitutions are included in the scope set forth in the claims of the present application.

Claims

1. A paper folding stretch-break conveying device is characterized by comprising:

the paper folding device comprises a rack (1), wherein a conveying roller set (10) and a paper folding conveying mechanism used for bearing paper (100) output by the conveying roller set (10) are arranged on the rack (1), the transmission rate of the paper folding conveying mechanism is higher than that of the conveying roller set (10), the paper folding conveying mechanism comprises a first rotating roller (20) and a second rotating roller (30) which are rotatably arranged on the rack (1), a gap used for conveying the paper (100) is formed between the first rotating roller (20) and the second rotating roller (30), an inwards concave paper folding space (4) is formed in the circumferential side face of the first rotating roller (20), a movable push plate (6) capable of enabling the end portion of a paper sheet unit (101) to extend into the paper folding space (4) is movably arranged on the second rotating roller (30), a movable clamping plate (5) located in the paper folding space (4) is movably arranged on the first rotating roller (20), the movable clamp plate (5) clamps the end part of the paper sheet unit (101) in the paper folding space (4) to form a folded edge, and the paper sheet unit (101) is pulled apart from the paper sheet (100) and conveyed forwards along with the rotation of the first rotating roller (20).

2. The paper folding stretch-break conveying apparatus according to claim 1, wherein:

the movable clamping plate (5) is rotatably arranged on the first rotating roller (20) through a first pivot (51) and is positioned in the paper folding space (4), and the first pivot (51) is connected with a first driving mechanism (70) for driving the first pivot (51) to rotate forwards and backwards so as to enable the movable clamping plate (5) to periodically extend outwards and converge inwards.

3. The paper folding stretch-break conveying apparatus according to claim 2, wherein:

the first driving mechanism (70) comprises a first rotating arm (71) fixedly arranged on a first pivot (51), the first rotating arm (71) is provided with two free ends, a first rotating wheel piece (72) is arranged at one free end of the first rotating arm (71), a rotating disc piece (73) coaxial with the first pivot (51) is fixedly arranged on the rack (1), an arc guide surface (74) capable of abutting against the first rotating wheel piece (72) is arranged on the rotating disc piece (73), the other free end of the first rotating arm (71) is connected with a first elastic piece (75) for driving the movable clamping plate (5) to outwards extend and reset, a limiting block (76) capable of abutting against the first rotating arm (71) to limit the swing angle of the movable clamping plate (5) is fixedly arranged on the first rotating roller (20), and the first rotating wheel piece (72) can abut against the arc guide surface (74) under the action of the first elastic piece (75) to enable the movable clamping plate (5) to move towards the direction The inner part converges to clamp the sheet unit (101).

4. A paper folding stretch-break conveying apparatus according to claim 3, characterized in that:

one end of the arc guide surface (74) is provided with a first guide curved surface (741) for guiding the first rotating member (72) to enter the arc guide surface (74), and the other end of the arc guide surface (74) is provided with a second guide curved surface (742) for guiding the first rotating member (72) to separate from the arc guide surface (74).

5. A paper folding stretch-break conveying apparatus according to claim 3, characterized in that:

the side of the first pivot (51) is provided with a first mounting plane (52) extending along the height of the first pivot, the movable clamping plate (5) is detachably mounted on the first mounting plane (52) through a first pressing strip (53), and the first pressing strip (53) is connected with the first mounting plane (52) through a threaded structure.

6. The paper folding stretch-break conveying apparatus according to claim 1, wherein:

the movable push plate (6) is rotatably arranged on the second rotating roller (30) through a second pivot (61), and the second pivot (61) is connected with a second driving mechanism (80) for driving the second pivot to rotate forwards and backwards so as to enable the movable push plate (6) to periodically extend outwards and converge inwards.

7. The paper folding stretch-break conveying apparatus according to claim 6, wherein:

the second driving mechanism (80) comprises a second rotating arm (81) fixedly arranged on a second pivot (61), a second rotating wheel piece (82) is arranged at one free end of the second rotating arm (81), a second elastic piece (83) for driving the movable push plate (6) to converge inwards is connected onto the second rotating arm (81), and a cam portion (84) which is periodically abutted against the second rotating wheel piece (82) to enable the movable push plate (6) to extend outwards into the paper folding space (4) is arranged on the second pivot (61).

8. The paper folding stretch-break conveying apparatus according to claim 1, wherein:

first rotating roller (20) are including rotating first pivot (21) that sets up in frame (1), and upper end plate (22) and lower end plate (23) are installed respectively to the upper portion and the lower part of first pivot (21), be equipped with between upper end plate (22) and lower end plate (23) and surround roller portion (24) outside first pivot (21), it is regional to have the cavity between roller portion (24) and first pivot (21), the side of roller portion (24) is equipped with the open slot that extends along vertical direction, this open slot with the cavity is regional to be linked together and encloses into paper folding space (4).

9. The paper folding stretch-break conveying apparatus according to claim 1, wherein:

the circumference of the first rotating roller (20) is two times or more than that of the second rotating roller (30), and a plurality of abdicating grooves (25) matched with the movable push plates (6) are correspondingly formed in the circumferential wall surface of the first rotating roller (20).

10. The paper folding stretch-break conveying apparatus according to claim 1, wherein:

the movable clamping plate (5) and/or the movable push plate (6) are/is provided with an adjusting structure which can be adjusted in a telescopic way towards the side surface of the paper (100).