CN216468768U

CN216468768U - Paper extraction supporting, overturning and conveying structure

Info

Publication number: CN216468768U
Application number: CN202123126447.8U
Authority: CN
Inventors: 杨华弟
Original assignee: Dongguan Zhuoneng Technology Co ltd
Current assignee: Dongguan Zhuoneng Technology Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-05-10
Anticipated expiration: 2031-12-13

Abstract

The utility model belongs to the technical field of paper extraction conveying, in particular to a paper extraction supporting, overturning and conveying structure which is arranged at the bottom end of a doubling and folding roller of a paper extraction doubling and folding machine; comprises a lifting mechanism, a connecting seat, a supporting claw, a conveying mechanism, a clamping turnover mechanism and an output mechanism; the lifting mechanism is arranged at the bottom end of the doubling and folding roller, the conveying mechanism is arranged on one side of the lifting mechanism, the connecting seat is arranged at the lifting end of the lifting mechanism, the supporting claws are sequentially arranged on the connecting seat, the supporting claws extend towards one end of the conveying mechanism, the clamping and overturning mechanism is arranged at the other end of the conveying mechanism, and the output mechanism is arranged on one side of the clamping and overturning mechanism; the clamping and overturning mechanism comprises a clamping jaw. The end part of the conveying mechanism is provided with a first empty avoiding groove of the empty avoiding clamping jaw, and one end of the output mechanism is provided with a second empty avoiding groove of the empty avoiding clamping jaw. Effectively avoiding the problems of inclination and wrinkling of the paper towel in the overturning process.

Description

Paper extraction supporting, overturning and conveying structure

Technical Field

The utility model discloses the technical field is carried to the paper extraction, especially relates to a paper extraction bearing upset transport structure.

Background

During the production process of the paper extraction, one end of one paper extraction is clamped with one end of the other paper extraction, so that the paper extraction is continuously stacked. In order to facilitate the extraction of the first tissue at the mouth of the package bag after the tissue is packaged, generally, in the stacking production of tissues, one end of the first tissue at the bottom end is reversely folded to form a quarter-fold. Conveying the paper towels downwards after a pack of paper towels are stacked, and turning the stacked paper towels 180 degrees before conveying the paper towels to be cut and packaged so that the paper towels with 4 min and 1 st of paper towels are upward; therefore, the paper towel needs to be clamped and turned over to the conveying mechanism by the turning mechanism. The existing clamping and turning mechanism is characterized in that a clamping plate at the bottom extends to the end part of a conveying mechanism, and the conveying mechanism conveys stacked tissues to the clamping plate at the bottom end, clamps the tissues and turns the tissues 180 degrees. And conveying mechanism with the paper handkerchief propelling movement to the splint on, the splint can have certain resistance to the paper handkerchief of bottom, can cause a paper handkerchief of bottom to corrugate to and because the inertial effect that the paper handkerchief was carried, can lead the paper handkerchief of piling up to take place to incline, and then be unfavorable for subsequent cutting and packing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a paper extraction bearing upset transport structure solves present paper extraction and piles up the in-process of carrying and upset in production, can cause the paper handkerchief slope that piles up and the problem of wrinkling.

In order to achieve the above purpose, an embodiment of the present invention provides a paper extraction supporting, overturning and conveying structure, which is arranged at the bottom end of a doubling and folding roller of a paper extraction pair folding machine; the device comprises a lifting mechanism, a connecting seat, a supporting claw, a conveying mechanism, a clamping and turning mechanism and an output mechanism; the lifting mechanism is arranged at the bottom end of the doubling and folding roller, the conveying mechanism is arranged on one side of the lifting mechanism, the connecting seat is arranged at the lifting end of the lifting mechanism, the supporting claws are sequentially arranged on the connecting seat, the supporting claws extend towards one end of the conveying mechanism, the clamping and overturning mechanism is arranged at the other end of the conveying mechanism, and the output mechanism is arranged on one side of the clamping and overturning mechanism; the clamping and overturning mechanism comprises a clamping jaw for clamping the paper towel on the conveying mechanism, a first clearance groove for avoiding the clamping jaw is formed in the end portion of the conveying mechanism, and a second clearance groove for avoiding the clamping jaw is formed in one end of the output mechanism.

Furthermore, the clamping and overturning mechanism comprises two groups of clamping jaws which are oppositely arranged.

Furthermore, the clamping and overturning mechanism also comprises two mounting side plates, a rotating shaft, two mounting plates, two clamping plates, a clamping driving piece and a rotating driving piece; the two mounting side plates are oppositely arranged, and the rotating shaft is rotatably connected between the two mounting side plates; the two mounting plates are fixedly connected to two ends of the rotating shaft, the two clamping plates are oppositely arranged, two ends of each clamping plate are connected with the clamping driving piece, the clamping driving pieces are connected with the corresponding mounting plates, and a plurality of clamping jaws which are arranged in an arrayed mode are arranged on each clamping plate; the rotary driving piece is connected with the rotating shaft; the rotating shaft is used for driving the rotating shaft to rotate;

further, the clamping driving piece comprises an air cylinder and a connecting plate, the air cylinder is fixedly arranged on the inner side of the corresponding mounting plate, the connecting plate is arranged at the telescopic end of the air cylinder, and the clamping plate is connected with the corresponding connecting plate; and a guide rod is arranged between the two connecting plates which are arranged on the same mounting side plate.

Further, the conveying mechanism comprises a first conveying mechanism and a second conveying mechanism which are arranged in sequence; the first conveying mechanism comprises a support frame and a plurality of groups of first belt transmission mechanisms; one end of the support frame, which is close to the second conveying mechanism, extends to form first installation parts, the number of which is the same as that of the first belt transmission mechanisms, one end of each first belt transmission mechanism is connected to the corresponding first installation part, and the other end of each first belt transmission mechanism is connected to the other end of the support frame; the lengths of the at least two first installation parts exceed those of other first installation parts, and a space for extending into is formed; the second conveying mechanism comprises a mounting rack and a plurality of groups of second belt conveying mechanisms; one end of the mounting rack close to the first conveying mechanism extends to form second mounting parts, the number of the second mounting parts is the same as that of the second belt conveying mechanism, and at least one second mounting part extends into a mounting space formed between the first mounting parts; and one end of each second belt transmission mechanism is connected with the second mounting part.

Furthermore, one end of the conveying mechanism, which is close to the clamping and overturning mechanism, is also provided with a limiting and extruding mechanism for limiting the conveyed paper towels and compacting the stacked paper towels; the limiting and extruding mechanism comprises a cross beam, an extruding cylinder, a pressing strip, a limiting cylinder and a limiting plate, the cross beam is arranged above the conveying mechanism, the extruding cylinder is arranged on the cross beam, and the pressing strip is arranged at the bottom end of the extruding cylinder; the plurality of limiting cylinders are arranged on one side, close to the clamping and overturning mechanism, of the cross beam, and the limiting plate is connected with the telescopic ends of the limiting cylinders.

Further, a blocking mechanism is arranged above the output mechanism and used for blocking and flatting the tissues stacked on the output mechanism.

Further, the blocking mechanism comprises a swinging shaft, a swinging driving piece, an installation piece, a beating cylinder and a beating plate; the swing shaft is rotatably connected above the output mechanism, and the swing driving piece is connected with the swing shaft and used for driving the swing shaft to rotate; the mounting piece is arranged on the swinging shaft, the beating cylinder is arranged at the bottom of the mounting piece, the beating plate is arranged at the telescopic end of the beating cylinder, and a plurality of poking claws extend downwards from one side of the beating plate.

Furthermore, the conveying mechanism is provided with a plurality of extending parts extending in a moving mode close to the lifting mechanism, space avoidance positions corresponding to the supporting claws are formed between the adjacent extending parts, and the conveying surface of the conveying mechanism extends to the extending parts.

Furthermore, the lifting mechanism comprises two groups of synchronous belt transmission mechanisms.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the paper extraction bearing upset transport structure has following technological effect at least:

the paper towels folded by the folding and superposing roller of the folding machine are gradually stacked on the supporting claw through the paper extraction, the lifting mechanism drives the supporting claw to continuously descend in the stacking process, after the paper towels are stacked to a certain amount, the lifting mechanism drives the supporting claw to move downwards, the paper towels stacked on the supporting claw can be transferred to the conveying mechanism, the stacked paper towels are conveyed to one side of the clamping and overturning mechanism through the conveying mechanism, the clamping jaw of the clamping and overturning mechanism directly clamps and clamps the paper towels from the first clearance groove, the paper towels are overturned for 180 degrees and are kept away from the clearance clamping jaw through the second clearance groove, and the paper towels can directly fall on the output mechanism. This paper extraction bearing upset transport structure passes first clearance groove through the clamping jaw and directly follows conveying mechanism and go up the paper handkerchief that the centre gripping was piled up to when overturning on output mechanism, pass corresponding second clearance groove, make the paper handkerchief can directly place and carry on conveying mechanism, and then effectively avoid the paper handkerchief at the in-process slope of upset and the problem of wrinkling.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a front view of a paper extraction supporting, turning and conveying structure provided at the bottom end of a folding and folding roller according to an embodiment of the present invention.

Fig. 2 is a structural diagram of a tissue supporting and turning transmission structure provided by the embodiment of the present invention.

Fig. 3 is a structural diagram of the other side of the paper extraction supporting and turning transmission structure provided by the embodiment of the present invention.

Fig. 4 is a structural diagram of a delivery mechanism of a tissue supporting and turning transmission structure provided by the embodiment of the present invention.

Fig. 5 is a structural diagram of a clamping and turning mechanism of a tissue supporting and turning conveying structure according to an embodiment of the present invention.

Fig. 6 is a structural diagram of the other side of the paper extraction supporting turnover conveying structure clamping and turnover mechanism provided by the embodiment of the present invention.

Fig. 7 is a structural diagram of a limiting and pressing mechanism of a paper extraction supporting and turning conveying structure provided by the embodiment of the present invention.

Fig. 8 is a structural diagram of a blocking mechanism for a paper extraction supporting turnover conveying structure according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, referring to fig. 1 to 4, a structure for supporting, turning and conveying a paper extraction sheet is disposed at the bottom end of the folding and folding drum 10, and the paper extraction sheet folding and folding machine and the folding and folding drum 10 are not the invention of the present application, but are also the prior art, and therefore will not be described in detail in this embodiment. The tissue supporting, overturning and conveying structure comprises a lifting mechanism 100, a connecting seat 200, a supporting claw 300, a conveying mechanism 400, a clamping and overturning mechanism 500 and an output mechanism 600. The lifting mechanism 100 is arranged at the bottom end of the doubling-up roller 10, the conveying mechanism 400 is arranged at one side of the lifting mechanism 100, the connecting seat 200 is arranged at the lifting end of the lifting mechanism 100, the plurality of supporting claws 300 are sequentially arranged on the connecting seat 200, the supporting claws 300 extend towards one end of the conveying mechanism 400, the clamping and overturning mechanism 500 is arranged at the other end of the conveying mechanism 400, and the output mechanism 600 is arranged at one side of the clamping and overturning mechanism 500. The clamping and overturning mechanism 500 comprises a clamping jaw 501 for clamping the paper towels on the conveying mechanism 400, the end part of the conveying mechanism 400 is provided with a first clearance groove 401 of the clamping jaw 501, and one end of the output mechanism 600 is provided with a second clearance groove 601 of the clamping jaw.

In this embodiment, the tissues folded by the folding cylinder 10 of the folder are gradually stacked on the supporting jaw 300, and the lifting mechanism 100 drives the supporting jaw 300 to continuously descend during the stacking process, after the tissues are stacked to a certain amount, the lifting mechanism 100 drives the supporting jaw 300 to move downwards, so that the tissues stacked on the supporting jaw can be transferred to the conveying mechanism 400, the stacked tissues are conveyed to one side of the clamping and turning mechanism 500 through the conveying mechanism 400, the tissues are directly clamped by the clamping jaws 501 of the clamping and turning mechanism 500 from the first clearance slot 401, the tissues are turned 180 degrees and pass through the second clearance slot 601 clearance clamping jaws 401, so that the tissues can directly fall on the output mechanism 600. Therefore, the clamping jaw 501 passes through the first empty avoiding groove 401 to directly clamp the stacked tissues from the conveying mechanism 400, and when the tissues are turned over to the output mechanism 600, the tissues pass through the corresponding second empty avoiding groove 601, so that the tissues can be directly placed on the conveying mechanism 400 to be conveyed, and the problems of inclination and wrinkling of the tissues in the turning process are effectively avoided.

Further, referring to fig. 2, the lifting mechanism 100 includes two sets of belt mechanisms 110 disposed on two sides of the frame of the paper extraction pair folding machine and a driving mechanism 120 for driving the two sets of belt mechanisms 110 to operate. The connecting base 200 connects the two belt mechanisms 100. Specifically, the belt mechanism 110 includes a driving synchronizing wheel 111, a driven synchronizing wheel 112, a timing belt 113 and a fixing seat 114; the driving synchronous wheel 111 and the driven synchronous wheel 112 are oppositely arranged up and down, the driving synchronous wheel 111 is connected with the driving mechanism 120, the synchronous belt 113 is connected with the driving synchronous wheel 111 and the driven synchronous wheel 112, the fixed seat 114 is fixedly connected with the synchronous belt 113, and the connecting seat 200 is connected with the fixed seats 114 of the two sets of belt mechanisms 110. The driving synchronizing wheel 111 is driven to rotate by the driving mechanism 120, and the synchronizing wheel 113 is pulled to rotate synchronously, so as to drive the fixing base 114 to ascend and descend, thereby driving the connecting base 200 and the supporting claws 300 on the connecting base 200 to ascend and descend.

Further, the driving mechanism 120 includes a servo motor and a transmission shaft, the transmission shaft is connected to the servo motor, and the driving synchronizing wheels 111 of the two sets of belt mechanisms 100 are connected to the transmission shaft.

Further, referring to fig. 3, 5 and 6, the clamping and overturning mechanism 500 includes two sets of clamping jaws 501 oppositely disposed. In this embodiment, when one of the jaws 501 is used to place the held paper towel on the output mechanism 600, the other jaw 501 is used to hold the paper towel on the conveying mechanism 400, so as to achieve continuous alternation and improve the efficiency of holding and turning.

Further, referring to fig. 5 and 6, the clamping and overturning mechanism 500 further includes two mounting side plates 510, a rotating shaft 520, two mounting plates 530, two clamping plates 540, a clamping driving member 550, and a rotating driving member 560. The two mounting side plates 510 are disposed opposite to each other, and the rotating shaft 520 is rotatably connected between the two mounting side plates 510. The two mounting plates 530 are fixedly connected to two ends of the rotating shaft 520, the two clamping plates 540 are arranged oppositely, two ends of each clamping plate 540 are connected with the clamping driving member 550, the clamping driving member 550 is connected with the corresponding mounting plate 530, and a plurality of clamping jaws 501 arranged in an array are arranged on each clamping plate 540; the rotary driving member 560 is connected to the rotating shaft 520 and is used for driving the rotating shaft 520 to rotate. In this embodiment, the clamping driving members 550 at the two ends of the clamping plate 540 drive the clamping plate 540 to move up and down, so that the clamping jaws 501 on the two clamping plates 540 oppositely clamp the paper towels stacked on the conveying mechanism 400 and release the paper towels to be placed on the output mechanism 600.

Further, referring to fig. 5 and 6, the clamping driving member 550 includes a cylinder 551 and a connecting plate 552, the cylinder 551 is fixedly disposed at the inner side of the corresponding mounting plate 530, the connecting plate 552 is disposed at the telescopic end of the cylinder 551, and the clamping plate 540 is connected to the corresponding connecting plate 552; a guide 553 is disposed between the two coupling plates 552 mounted on the same mounting side plate 510. In this embodiment, the connecting rod 552 is driven by the cylinder 551 to slide along the guide rod 553, so as to drive the clamp plate 540 to clamp up and down.

Further, referring to fig. 3 and 4, the conveying mechanism 400 includes a first conveying mechanism 410 and a second conveying mechanism 420 which are sequentially disposed. The first conveying mechanism 410 includes a supporting frame 411 and a plurality of sets of first belt transmission mechanisms 412. In this embodiment, the conveying mechanism 400 is composed of a first conveying mechanism 410 and a second conveying mechanism 420, and can realize independent conveying of the first conveying mechanism 410 and the second conveying mechanism 420.

One end of the supporting frame 411 close to the second conveying mechanism 420 extends to form first mounting portions 413 with the same number as the first belt transmission mechanisms 412, one end of each first belt transmission mechanism 412 is connected to the corresponding first mounting portion 413, and the other end of each first belt transmission mechanism 412 is connected to the other end of the supporting frame 411. At least two of the first mounting parts 413 are formed with a space extending into the first mounting part 413 beyond the other first mounting parts 413. The second conveying mechanism 420 includes a mounting frame 421 and a plurality of sets of second belt conveying mechanisms 422. One end of the mounting frame 421 close to the first conveying mechanism 410 is extended with second mounting parts 423 with the same quantity as the second belt conveying mechanism 422, and at least one of the second mounting parts 423 extends into a mounting space formed between the first mounting parts 413. One end of each of the second belt transfer mechanisms 422 is connected to the second mounting portion 423. In this embodiment, a part of the second belt conveying mechanism 422 extends into the space formed by the first belt conveying mechanism 412, so that when the stacked tissues are conveyed from the first conveying mechanism 410 to the transition position of the second conveying mechanism 420, the stacked tissues can be continuously conveyed, and the problem of jamming at the position where the first conveying mechanism 410 is connected with the second conveying mechanism 420 is avoided.

Further, referring to fig. 4, a plurality of extending portions 402 extend from the conveying mechanism 400 to move close to the lifting mechanism 100, a clearance corresponding to the supporting claw 300 is formed between adjacent extending portions 402, and the conveying surface of the conveying mechanism 400 extends to each extending portion 402. In this embodiment, when the supporting claw 300 transfers the stacked tissues to the conveying mechanism 400, the supporting claw 300 is only required to be vertically up and down. Specifically, when the supporting claw 300 is driven to descend by the lifting mechanism 100, the supporting claw 300 penetrates through the clearance, so that stacked tissues are supported on the conveying surface of the extending part 402, and then can be conveyed towards the clamping and overturning mechanism 500 by the conveying mechanism 400, and the problem that the stacked tissues are placed on the conveying mechanism 400 after the supporting claw is driven to be drawn out by a translation mechanism in the traditional mode is solved, the structure is simpler, the lifting efficiency is improved, and the problem that the tissues are inclined and scattered when the tissues are placed on the conveying mechanism 400 is effectively solved.

Still further, referring to fig. 4, extending portions 402 having the same number and corresponding positions as the first mounting portions 413 extend from one end of the supporting frame 411 close to the lifting mechanism 100, and one end of the first belt transmission mechanism 412 is mounted on the extending portions 402.

Further, referring to fig. 1 to 4 and 7, a limiting and pressing mechanism 700 is further disposed at one end of the conveying mechanism 400 close to the clamping and overturning mechanism 500, and is used for limiting the conveyed tissues and compacting the stacked tissues. Specifically, the limiting and pressing mechanism 700 is disposed on the mounting frame 421. The limiting and squeezing mechanism 700 comprises a beam 701, a squeezing cylinder 702, a pressing bar 703, a limiting cylinder 704 and a limiting plate 705, wherein the beam 701 is installed above the second conveying mechanism 420 of the conveying mechanism 400, and specifically is installed between the two installation side plates 510. The extrusion cylinder 702 is arranged on the cross beam 701, and the pressing strip 703 is arranged at the bottom end of the extrusion cylinder 702; a plurality of limiting cylinders 704 are arranged on one side of the cross beam 701 close to the clamping and overturning mechanism 500, the limiting plates 705 are connected with the telescopic ends of the limiting cylinders 704, a connecting cross beam is connected with each limiting cylinder 704, and each limiting plate 705 is arranged on the connecting cross beam. In this embodiment, when the stacked tissues are conveyed to the end close to the clamping and turning mechanism 500 by the conveying mechanism 400, the limiting plate 705 is pushed by the limiting cylinder 704 to extend downwards, so as to limit the stacked tissues on the conveying mechanism 500, the pressing bar 703 is pushed downwards by the pressing cylinder 702, and the stacked tissues are compacted by the pressing bar 703. And can also be through the spacing board 705 with the product of piling up neatly flattening, guarantee follow-up cutting and the orderly going on of packing.

Further, referring to fig. 1 to 4 and 8, a blocking mechanism 800 is further disposed above the output mechanism 600 for blocking and leveling the paper towels stacked on the output mechanism 600. When the stacked tissues are clamped and turned over to the output mechanism 600 by the clamping and placing mechanism 500, the stacked tissues on the output mechanism 600 can be limited by the blocking mechanism 800, and the stacked tissues can be flapped and leveled.

Further, referring to fig. 8, the blocking mechanism 800 includes a swing shaft 801, a swing drive 802, a mounting member 803, a slapping cylinder 804, and a slapping plate 805. The swing shaft 801 is rotatably connected above the output mechanism 600, and specifically, the swing shaft 801 is rotatably connected between the two mounting side plates 510. The swing driving member 802 is connected to the swing shaft 801 and is configured to drive the swing shaft 801 to rotate. The mounting member 803 is disposed on the swing shaft 801, the flapping cylinder 804 is disposed at the bottom of the mounting member 803, the flapping plate 805 is disposed at the telescopic end of the flapping cylinder 804, and a plurality of toggle claws 806 extend downwards from one side of the flapping plate 805. In this embodiment, when the blocking mechanism 800 needs to block and flap stacked tissues on the output mechanism 600, the swing driving member 802 drives the swing shaft 801 to rotate by a certain angle, so that the flap plate 805 is turned over to the front end of the stacked tissues, while the tissues are transported, the flap cylinder 804 drives the flap plate 805 to move in the opposite direction to the direction of the transportation of the tissues, and then the side of the stacked tissues is flapped by the striking force of the striking, and under the action of the inertia of the stacked tissues, the side of the tissues is attached to the side of the toggle pawl 806, so that the stacked tissues are smoother, and the subsequent cutting and packaging are facilitated.

Still further, a belt mechanism is transversely disposed on one side of the re-feeding mechanism 600, and the conveying direction of the belt mechanism is opposite to the conveying direction of the feeding mechanism 600.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A paper extraction supporting, overturning and conveying structure is arranged at the bottom end of a doubling and folding roller of a paper extraction doubling and folding machine; the device is characterized by comprising a lifting mechanism, a connecting seat, a supporting claw, a conveying mechanism, a clamping and overturning mechanism and an output mechanism; the lifting mechanism is arranged at the bottom end of the doubling-up drum, the conveying mechanism is arranged on one side of the lifting mechanism, the connecting seat is arranged at the lifting end of the lifting mechanism, the supporting claws are sequentially arranged on the connecting seat, the supporting claws extend towards one end of the conveying mechanism, the clamping and overturning mechanism is arranged at the other end of the conveying mechanism, and the output mechanism is arranged on one side of the clamping and overturning mechanism; the clamping and overturning mechanism comprises a clamping jaw for clamping the paper towel on the conveying mechanism, a first clearance groove for avoiding the clamping jaw is formed in the end portion of the conveying mechanism, and a second clearance groove for avoiding the clamping jaw is formed in one end of the output mechanism.

2. The tissue supporting flip conveyor structure of claim 1, wherein: the clamping and overturning mechanism comprises two groups of oppositely arranged clamping jaws.

3. The tissue supporting flip conveyor structure of claim 1, wherein: the clamping and overturning mechanism further comprises two mounting side plates, a rotating shaft, two mounting plates, two clamping plates, a clamping driving piece and a rotating driving piece; the two mounting side plates are oppositely arranged, and the rotating shaft is rotatably connected between the two mounting side plates; the two mounting plates are fixedly connected to two ends of the rotating shaft, the two clamping plates are oppositely arranged, two ends of each clamping plate are connected with the clamping driving piece, the clamping driving pieces are connected with the corresponding mounting plates, and a plurality of clamping jaws which are arranged in an arrayed mode are arranged on each clamping plate; the rotary driving piece is connected with the rotating shaft and used for driving the rotating shaft to rotate.

4. The tissue supporting flip conveyor structure of claim 3, wherein: the clamping driving piece comprises an air cylinder and a connecting plate, the air cylinder is fixedly arranged on the inner side of the corresponding mounting plate, the connecting plate is arranged at the telescopic end of the air cylinder, and the clamping plate is connected with the corresponding connecting plate; and a guide rod is arranged between the two connecting plates which are arranged on the same mounting side plate.

5. The tissue supporting flip conveyor structure of claim 1, wherein: the conveying mechanism comprises a first conveying mechanism and a second conveying mechanism which are arranged in sequence; the first conveying mechanism comprises a support frame and a plurality of groups of first belt transmission mechanisms; one end of the support frame, which is close to the second conveying mechanism, extends to form first installation parts, the number of which is the same as that of the first belt transmission mechanisms, one end of each first belt transmission mechanism is connected to the corresponding first installation part, and the other end of each first belt transmission mechanism is connected to the other end of the support frame; the lengths of the at least two first installation parts exceed those of other first installation parts, and a space for extending into is formed; the second conveying mechanism comprises a mounting rack and a plurality of groups of second belt conveying mechanisms; one end of the mounting rack close to the first conveying mechanism extends to form second mounting parts, the number of the second mounting parts is the same as that of the second belt conveying mechanism, and at least one second mounting part extends into a mounting space formed between the first mounting parts; and one end of each second belt transmission mechanism is connected with the second mounting part.

6. The structure for conveying a paper extraction holder in a turnover manner as claimed in any one of claims 1 to 5, wherein: one end of the conveying mechanism, which is close to the clamping and overturning mechanism, is also provided with a limiting and extruding mechanism for limiting the conveyed paper towels and compacting the stacked paper towels; the limiting and extruding mechanism comprises a cross beam, an extruding cylinder, a pressing strip, a limiting cylinder and a limiting plate, the cross beam is arranged above the conveying mechanism, the extruding cylinder is arranged on the cross beam, and the pressing strip is arranged at the bottom end of the extruding cylinder; the plurality of limiting cylinders are arranged on one side, close to the clamping and overturning mechanism, of the cross beam, and the limiting plate is connected with the telescopic ends of the limiting cylinders.

7. The structure for conveying a paper extraction holder in a turnover manner as claimed in any one of claims 1 to 5, wherein: and a blocking mechanism is arranged above the output mechanism and used for blocking and leveling the tissues stacked on the output mechanism.

8. The tissue supporting flip conveyor structure of claim 7, wherein: the blocking mechanism comprises a swinging shaft, a swinging driving piece, an installation piece, a beating cylinder and a beating plate; the swing shaft is rotatably connected above the output mechanism, and the swing driving piece is connected with the swing shaft and used for driving the swing shaft to rotate; the mounting piece is arranged on the swinging shaft, the beating cylinder is arranged at the bottom of the mounting piece, the beating plate is arranged at the telescopic end of the beating cylinder, and a plurality of poking claws extend downwards from one side of the beating plate.

9. The structure for conveying a paper extraction holder in a turnover manner as claimed in any one of claims 1 to 5, wherein: the conveying mechanism is provided with a plurality of extending parts which extend close to the lifting mechanism in a moving mode, a space avoiding position corresponding to the supporting claw is formed between every two adjacent extending parts, and the conveying surface of the conveying mechanism extends to each extending part.

10. The structure for conveying a paper extraction holder in a turnover manner as claimed in any one of claims 1 to 5, wherein: the lifting mechanism comprises two groups of synchronous belt transmission mechanisms.