CN108583052B

CN108583052B - Cover machine

Info

Publication number: CN108583052B
Application number: CN201810645518.9A
Authority: CN
Inventors: 吴应义; 蔡希海; 吴应忠; 黄锡宏
Original assignee: Zhejiang Rokin Technology Co ltd
Current assignee: Zhejiang Rokin Technology Co ltd
Priority date: 2018-06-21
Filing date: 2018-06-21
Publication date: 2023-09-01
Anticipated expiration: 2038-06-21
Also published as: CN108583052A

Abstract

The invention discloses a cover machine, which is characterized by comprising a paperboard feeding device, a facial tissue feeding device, a first edge folding device, a second edge folding device and a picking and placing device, wherein the picking and placing device comprises a picking and placing bracket, mechanical arms and a plurality of suckers, the mechanical arms are arranged on the picking and placing bracket, the mechanical arms are arranged in four and uniformly surround the periphery of the supporting arms, the paperboard feeding device, the facial tissue feeding device, the first edge folding device and the second edge folding device are sequentially and uniformly distributed on the periphery of the picking and placing bracket along the central axis of the supporting arms, the picking and placing bracket is provided with a driving device for driving the supporting arms to rotate and lift, the driving device comprises a rotating motor for driving the supporting arms to rotate and can all rotate to the next station, and a lifting motor for driving the supporting arms to lift and can drive the mechanical arms to approach or separate from the stations.

Description

Cover machine

Technical Field

The invention relates to the field of cover processing, in particular to a cover machine.

Background

The cover machine is called a taping machine and the shell machine. The automatic cover machine is divided into a manual cover machine, a semi-automatic cover machine and a full-automatic cover machine. The whole production process comprises the steps of cover gluing, positioning, four-edge wrapping and the like. The novel desk is suitable for various book covers, book boxes, folders, chessboard, desk calendars and other related products.

The front cover machine comprises a plurality of stations such as facial tissue feeding stations, paperboard feeding stations and facial tissue flanging stations, the existing front cover machine is usually arranged in sequence along the conveying direction of finished products for each station, facial tissues and paperboards are sequentially processed through the stations to form a front cover, however, the whole front cover machine equipment is narrow and long due to the fact that the stations are arranged in sequence, and the space requirement on a factory building is high.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a cover machine which has low requirement on the space of a factory building.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a cover machine, including cardboard loading attachment, facial tissue loading attachment, be used for carrying out the first folding device of hem to the X to both sides of facial tissue, be used for carrying out the second folding device of hem to the Y to both sides of facial tissue and be used for getting facial tissue and cardboard in succession and put the getting the blowing device in each device, get the blowing device including get the blowing support and set up the arm on getting the blowing support and set up a plurality of sucking discs on the arm, the arm is provided with four to evenly around setting up in the periphery of support arm, cardboard loading attachment, facial tissue loading attachment, first folding device and second folding device follow the central axis evenly distributed of support arm in proper order in getting the periphery of blowing support, be provided with on the getting the blowing support and be used for driving the support arm rotatory and go up and down drive arrangement, drive arrangement is including being used for driving the support arm rotatory and can all rotate the arm that is located the arm to the rotation motor of next station, and be used for driving the lift arm and can drive the arm to be close to or keep away from the lift motor of the arm that is located the station of arm;

The feeding and discharging support is fixedly provided with a guide column and a lifting plate in sliding connection with the guide column, the length direction of the guide column is consistent with that of the supporting arm, the sliding direction of the lifting plate on the guide column is the length direction of the guide column, the rotating motor is fixedly connected with the lifting plate, and the output end of the rotating motor penetrates through the lifting plate and is fixedly connected with the supporting arm;

get and put and be connected with the drive screw of lifter plate spiro union on the material support, drive screw and guide post parallel arrangement, fixedly connected with driven gear on the drive screw, elevator motor and get and put material support fixed connection, elevator motor's output fixedly connected with is used for driving driven gear pivoted driving gear, and elevator motor drives the lifter plate of drive screw and drive screw spiro union in the rotation in-process and can slide along the length direction of guide post.

As a further improvement of the invention, each mechanical arm is provided with an X-direction mounting frame for mounting the suction disc and a Y-direction mounting frame fixedly connected with the mechanical arm, the X-direction mounting frame comprises at least two X-direction mounting plates, each X-direction mounting plate is arranged in parallel, the suction disc is connected to each X-direction mounting plate in a sliding manner, and the sliding direction of the suction disc is the length direction of the X-direction mounting plate;

Y is to the mounting bracket including the mounting bracket slide rail that slides with X to the mounting panel and be connected with the drive shaft that is used for driving X to the mounting panel and slide on the mounting bracket slide rail to the axial rotation on the Y, the length direction of drive shaft and the length direction parallel arrangement of mounting bracket slide rail, the middle part of drive shaft is rotated with Y to the mounting bracket and is connected, the both ends of drive shaft all are provided with the drive screw thread with X to the mounting panel spiro union, and the spiral opposite direction of both ends drive screw thread, and two at least X are to the mounting panel respectively with the drive screw thread spiro union at both ends, the drive shaft is close to each other or keep away from to the mounting panel in the X that rotates the in-process drive both sides.

As a further improvement of the invention, the paperboard feeding device comprises a conveying installation frame, a plurality of paperboard sliding rails are arranged on the conveying installation frame, the length direction of each paperboard sliding rail is the same as the length direction of the conveying installation frame, the plurality of paperboard sliding rails are distributed along the width direction of the conveying installation frame, each paperboard sliding rail is connected with the conveying installation frame in a sliding manner and is the width direction of the conveying installation frame, a width-adjusting driving assembly for driving the corresponding paperboard sliding rail to slide is arranged on the conveying installation frame, two sides of the width direction of each paperboard sliding rail can be respectively erected on two adjacent paperboard sliding rails and slide along the length direction of the corresponding paperboard sliding rail, two ends of the length direction of each paperboard sliding rail are respectively provided with a paperboard stacking station and a paperboard positioning and centering station, a paperboard pushing head for pushing a paperboard from the paperboard stacking station to the paperboard positioning and centering station is arranged between the two adjacent paperboard sliding rails, each paperboard positioning and centering station comprises a plurality of guide strips for isolating two adjacent paperboards and guiding the paperboard and a plurality of paperboard blocking blocks for blocking the sliding of the paperboard sliding, each paperboard blocking block is connected with a movable polish rod capable of sliding along the length direction of the conveying installation frame, and the movable polish rod for driving the movable polish rod.

As a further improvement of the invention, the paperboard stacking station comprises a plurality of clapboards for limiting stacked paperboards, the clapboards are respectively and fixedly connected to the paperboard sliding rails, a fixing strip for blocking the paperboards from sliding is arranged on one side of the baffle, facing the paperboard positioning and centering station, of the clapboards, stacking cavities for stacking the paperboards are formed by surrounding two adjacent paperboard sliding rails, the clapboards and the fixing strip, and a sliding gap for only one paperboard to slide out is reserved between the lower surface of the fixing strip and the upper surface of the paperboard sliding rail.

As a further improvement of the invention, the guide strips are fixedly connected with the paperboard slide rail, the opposite side surfaces of two adjacent guide strips are respectively provided with a pushing surface and a datum plane, the pushing surface is provided with a positioning elastic sheet for pushing the paperboard to the datum plane, one side of the positioning elastic sheet, which is close to the paperboard stacking station, is connected with the guide strips, a deformation gap for deforming the positioning elastic sheet is formed between the other side of the positioning elastic sheet and the guide strips, the positioning elastic sheet is extruded when the paperboard is conveyed to the paperboard positioning and centering station, and the positioning elastic sheet pushes the paperboard to be abutted against the datum plane under the action of elasticity.

As a further improvement of the invention, the facial tissue feeding device comprises a facial tissue centering and extracting mechanism for positioning and conveying the facial tissue which is not glued and a facial tissue conveying and positioning mechanism for positioning the facial tissue which is glued, wherein the facial tissue centering and extracting mechanism comprises a bearing table for bearing the facial tissue, a facial tissue positioning component for positioning the X direction of the facial tissue, a facial tissue centering component for centering the Y direction of the facial tissue and a facial tissue conveying component for conveying the facial tissue along the X direction of the facial tissue, the facial tissue centering component comprises a centering screw rod which is arranged above the bearing table in parallel and two Y-direction baffles for clamping the Y directions of the facial tissue, two ends of the length direction of the centering screw rod are connected with the bearing table through a fixed wall plate, threaded sections are respectively and spirally connected with the two threaded sections, a linear guide rail for sliding the Y-direction baffles is fixedly connected between the two fixed wall plates, and the linear guide rail is arranged in a centering state and is parallel to the two screw rods which are mutually far away from the two screw rods in a rotating state; the facial tissue positioning assembly comprises a plurality of X-direction baffles used for positioning facial tissue in the X direction and a positioning frame cross rod capable of approaching or keeping away from a linear guide rail, wherein the positioning frame cross rod is horizontally arranged on a bearing table, both ends of the length direction of the positioning frame cross rod are connected with the bearing table in a sliding manner through a slide way, the length direction of the slide way is along the X direction of the facial tissue, the linear guide rail is connected with the positioning frame cross rod in a sliding manner, and the positioning frame cross rod is mutually approaching or keeping away from the X-direction baffles on the linear guide rail and the positioning frame cross rod in a sliding manner along the slide way.

As a further improvement of the invention, the facial tissue conveying and positioning mechanism comprises a conveying frame, a plurality of negative pressure channels are arranged on the conveying frame, channel openings for conducting the negative pressure channels with the outside are arranged above the negative pressure channels, the length directions of the negative pressure channels and the channel openings are all along the length direction of the conveying frame, the negative pressure channels and the width direction of the conveying frame are respectively arranged, a plurality of facial tissue conveying belts for driving facial tissue to convey are arranged on the conveying frame, the facial tissue conveying belts are correspondingly arranged with the negative pressure channels and cover the channel openings, a plurality of suction holes are arranged on the facial tissue conveying belts, two ends of the suction holes are respectively conducted with the negative pressure channels and the outside, the negative pressure channels are connected with suction ends of the negative pressure device, the facial tissue conveying belts drive the facial tissue conveying belts to be adsorbed on the facial tissue conveying belts, channel adjusting openings for adjusting the pressure in the negative pressure channels are respectively arranged on the conveying frame, the two ends of the channel adjusting openings are respectively connected with the outside, the opening adjusting plates are correspondingly arranged with the negative pressure channels, and the opening adjusting plates can be hinged with the conveying frames, and the opening adjusting plates can be correspondingly hinged to the opening adjusting openings are correspondingly arranged under the opening adjusting plates, and the opening adjusting plates can be turned to be in a large state and can be changed;

A positioning stop block for stopping facial tissue conveying is arranged between any two adjacent facial tissue conveying belts, a plurality of positioning stop blocks are arranged along the width direction of the conveying frame, the lower ends of the positioning stop blocks are fixedly connected with a positioning rotating rod, the positioning rotating rod is hinged with a sliding panel capable of sliding along the length direction of the conveying frame, the plane where the positioning rotary rod is located in the rotating process is parallel to the upper surface of the conveying frame, a steel wire flexible shaft used for driving the positioning rotary rod to rotate and an adjusting screw rod used for driving the sliding panel to slide are arranged on the conveying frame, and the sliding panel is in threaded connection with the adjusting screw rod.

As a further improvement of the invention, one end joint of the steel wire flexible shaft is in threaded connection with the positioning rotary rod, the other end joint of the steel wire flexible shaft is connected with a flexible shaft knob for rotating the steel wire flexible shaft, one end of the steel wire flexible shaft, which is close to the positioning rotary rod, is axially fixed with the sliding panel and is in circumferential rotatable connection with the sliding panel, one end of the steel wire flexible shaft, which is connected with the flexible shaft knob, is in rotatable connection with one side of the width direction of the conveying frame, and the positioning rotary rod is driven to rotate around the hinged position of the positioning rotary rod and the conveying frame in the rotating state of the flexible shaft knob.

As a further improvement of the invention, the first edge folding device and the second edge folding device both comprise edge folding mechanisms, the edge folding mechanisms comprise edge folding brackets, lower folded plates arranged on the edge folding brackets and upper folded plates arranged above the lower folded plates, the upper folded plates and the lower folded plates are arranged in parallel, the gap between the upper folded plates and the lower folded plates is smaller than the edge folding width of the tissue extending out of the paperboard, the upper folded plates are provided with two folded plates, the two upper folded plates are positioned on two opposite sides of the tissue, and the gap between the two upper folded plates is larger than the length of the paperboard and smaller than the length of the tissue; the folding support or the lower folding plate is provided with an inclined pressing device for driving the upper folding plate to slide obliquely from top to bottom, the inclined tracks of the two upper folding plates are arranged in a V-shaped structure, the inclined pressing device comprises inclined pressing swing arms positioned at two ends of the upper folding plate in the length direction, at least two inclined pressing swing arms positioned at one end are arranged in parallel, one end of each inclined pressing swing arm is hinged with the upper folding plate, the other end of each inclined pressing swing arm is hinged with the lower folding plate or the folding support, and the lower folding plate or the folding support is provided with an inclined pressing cylinder for pushing the inclined pressing swing arms to swing; the oblique pressure swing arm of oblique cylinder propelling movement can drive the downward lower folded plate that is close to of upper folded plate slope until rather than laminating in the swing in-process, upper folded plate is including folded plate mounting panel and the dysmorphism folded plate of being connected with the folded plate mounting panel can be dismantled, dysmorphism folded plate is provided with dysmorphism hem towards cardboard one side.

As a further improvement of the invention, the second flanging device comprises a conveying device for conveying finished products after flanging, the conveying device comprises two finished product conveying wheels rotatably connected to the lower folded plate and a conveying motor for driving the finished product conveying wheels to rotate, the two finished product conveying wheels are respectively positioned at two ends of the lower folded plate in the length direction, a finished product conveying belt is wound between the two finished product conveying wheels, the upper end face of the finished product conveying belt wound between the two finished product conveying wheels is parallel to the upper end face of the lower folded plate, and the upper end face of the finished product conveying belt is slightly higher than the upper end face of the lower folded plate;

the folding support is also rotationally connected with a driving press roller, a driven press roller and a press roller motor which is fixed on the folding support and used for driving the driving press roller to rotate, the driving press roller and the driven press roller are arranged in parallel, a pressing gap for a conveying device to convey a paperboard to pass through is reserved between the driving press roller and the driven press roller, the pressing gap is positioned at a discharge end of the conveying device and corresponds to the height of a finished product conveying belt, the folding support is rotationally connected with a support roller for supporting the paperboard after passing through the pressing gap, the support roller is positioned at the discharge ends of the driving press roller and the driven press roller, the support roller is arranged in parallel with the driving press roller, the height of the support roller is matched with the height of the pressing gap, and the distance between the support roller and the pressing gap is smaller than the length of the paperboard;

The paper board conveying device is characterized in that a bearing device for bearing paper boards falling through the supporting rollers is arranged on one side of the discharging ends of the driving pressing roller and the driven pressing roller, the bearing device comprises two bearing plates located at two ends of the paper board pressing conveying direction, a bearing driving assembly for driving the bearing plates, and a counting sensor for counting the number of the paper boards falling through the supporting rollers, when the bearing driving assembly drives the two bearing plates to turn over to be in a horizontal state in opposite directions, the paper boards falling through the supporting rollers fall on the two bearing plates, and when the bearing driving assembly drives the two bearing plates to turn over to be in a vertical state in opposite directions, the paper boards received by the two bearing plates drop downwards.

The invention has the beneficial effects that: and each mechanical arm is provided with a picking and placing mechanism for adsorbing facial tissues and paperboards, and the picking and placing mechanism comprises a sucker for picking and placing paper materials. In the use, elevator motor corotation drives each arm and is close each station, until the sucking disc contradicts with the material on each station, and after the sucking disc adsorbed the material, elevator motor reversal drove each arm and kept away from each station, and the sucking disc will adsorb the material and take away from original station simultaneously, and then rotating electrical machines drive each arm rotation, transfer the material of last station to next station, elevator motor corotation drives each arm and is close each station again, until accomplishing the material transfer. In the process, the paperboard on the paperboard feeding station is absorbed and transferred to the facial tissue feeding station, so that the lamination of the paperboard and facial tissue is completed, and suction discs from the paperboard feeding station to the facial tissue feeding station are kept in an absorption state; simultaneously, the materials on the facial tissue feeding station are transferred to a facial tissue first folding station until the folding procedure of the X-direction two sides of the facial tissue is completed, and the suction disc from the facial tissue feeding station to the facial tissue first folding station keeps an adsorption state; simultaneously, the materials on the first folding station of the facial tissues are transferred to the second folding station of the facial tissues until the materials fall into the sucker of the second folding station to release the materials; meanwhile, the mechanical arm of the compressed collecting station is transferred to the paperboard feeding station in a state of no adsorbed materials until the sucking disc is opened again after the mechanical arm is abutted against the paperboard on the paperboard feeding station; so reciprocating cycle, through each arm with each station around setting up in getting the blowing support periphery, make whole capper be unlikely to too narrow overlength, can effectively solve the problem that current capper is high to the space requirement of factory building to effectively reduced the part quantity of capper (for example be used for driving the drive part of arm), thereby be favorable to reducing the area of capper, and then be favorable to reducing the space requirement of capper to the factory building.

Drawings

FIG. 1 is a schematic perspective view of a cover machine;

fig. 2 is a schematic perspective view of a material taking and placing device;

fig. 3 is a schematic perspective view of a cardboard loading device;

FIG. 4 is a schematic perspective view of a tissue centering and extracting mechanism;

FIG. 5 is a schematic perspective view of a tissue conveying and positioning mechanism;

FIG. 6 is a schematic perspective view of a facial tissue conveying and positioning mechanism without a facial tissue conveying belt;

FIG. 7 is a schematic perspective view of a hemming mechanism;

fig. 8 is a schematic perspective view of a second flanging device.

Reference numerals: 1. a paperboard feeding device; a1, conveying the mounting frame; a2, a paperboard sliding rail; a21, a guide bar; a211, positioning an elastic sheet; a22, a separator; a23, fixing strips; a24, stacking cavities; a28, a paperboard stacking station; a29, positioning and centering the paper board; a3, pushing the paper board; a4, a paperboard stop block; a5, a movable polish rod; a91, a width adjusting driving assembly; a92, driving an adjusting component; 2. a facial tissue feeding device; 3. a first hemming device; 4. a second crimping device; 5. a material taking and discharging device; b1, taking a material placing bracket; b11, a driving device; b111, a rotating electrical machine; b112, lifting motor; b113 a drive gear; b12, a guide post; b13, lifting plates; b14, driving a screw; b141, a driven gear; b2, a mechanical arm; b21, a supporting arm; b22, sucking discs; b3, an X-direction mounting frame; b31, X-direction mounting plates; b4, a Y-direction mounting frame; b41, mounting rack sliding rails; b42, driving shaft; 6. a tissue centering and extracting mechanism; c1, a bearing table; c11, fixing the wallboard; c2, a facial tissue positioning assembly; c21, an X-direction baffle; c22, a positioning frame cross bar; c23, a slideway; c3, a facial tissue centering component; c31, centering the screw rod; c32, Y-direction baffles; c33, linear guide rails; c4, a facial tissue conveying assembly; 7. a facial tissue conveying and positioning mechanism; d1, conveying frames; d2, a negative pressure channel; d21, channel opening; d22, a facial tissue conveying belt; d221, air suction holes; d24, an opening adjusting plate; d3, positioning a stop block; d31, positioning a rotating rod; d32, a sliding panel; d33, a steel wire flexible shaft; d331, flexible shaft knob; d34, adjusting a screw rod; 8. a flanging mechanism; e1, edge folding support; e11, driving a pressing roller; e112, a press roller motor; e12, driven press rolls; e14, supporting rollers; e17, lower folded plates; e18, upper folded plates; e181, a folded plate mounting plate; e182, special-shaped folded plate; e2, an inclined pressing device; e21, obliquely pressing the swing arm; e3, a conveying device; e31, a finished product conveying wheel; e32, conveying motor; e33, a finished product conveying belt; e4, a receiving device; e41, a receiving plate; and e42, receiving the driving assembly.

Detailed Description

The invention will now be described in further detail with reference to the drawings and examples. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 8, a cover machine of the present embodiment includes a cardboard feeding device 1, a facial tissue feeding device 2, a first folding device 3 for folding two sides of an X-direction of facial tissue, a second folding device 4 for folding two sides of a Y-direction of facial tissue, and a picking and placing device 5 for picking and placing facial tissue and cardboard into each device in sequence, wherein the picking and placing device 5 includes a picking and placing bracket b1, a mechanical arm b2 disposed on the picking and placing bracket b1, and a plurality of suction cups b22 disposed on the mechanical arm b2, the mechanical arm b2 is provided with four suction cups and uniformly surrounds the periphery of the support arm b21, the cardboard feeding device 1, the facial tissue feeding device 2, the first folding device 3, and the second folding device 4 are sequentially and uniformly distributed along the periphery of the picking and placing bracket b1, the picking and placing bracket b1 is provided with a driving device b11 for driving the support arm b21 to rotate and lift, the driving device b11 includes a driving motor b21 to rotate and a driving station b2 to rotate and a support arm b2 to be located at a position that is far away from the mechanical arm b2 or a lifting station 112 to be located at a position that is far away from the rotation station 112; a guide post b12 and a lifting plate b13 which is in sliding connection with the guide post b12 are fixedly arranged on the material taking and placing bracket b1, the length direction of the guide post b12 is consistent with the length direction of the supporting arm b21, the sliding direction of the lifting plate b13 on the guide post b12 is the length direction of the guide post b12, the rotating motor b111 is fixedly connected with the lifting plate b13, and the output end of the rotating motor b111 penetrates through the lifting plate b13 and is fixedly connected with the supporting arm b 21; get and put material support b1 on rotating be connected with drive screw b14 of drive screw b13 spiro union, drive screw b14 and guide post b12 parallel arrangement, fixedly connected with driven gear b141 on the drive screw b14, elevator motor b112 and get and put material support b1 fixed connection, elevator motor b 112's output fixedly connected with is used for driving driven gear b141 pivoted driving gear b113, elevator motor b112 drives drive screw b14 in the rotation in-process and drive screw b14 spiro union's lift plate b13 can slide along the length direction of guide post b 12.

Cardboard loading attachment 1, facial tissue loading attachment 2, first folding device 3 and second folding device 4 are four stations in the front cover processing respectively, namely cardboard loading attachment, facial tissue first folding station and facial tissue second folding station, and cardboard loading attachment 1 can realize the material loading of cardboard, and facial tissue loading attachment 2 can realize the material loading of facial tissue and the rubber coating of facial tissue, and first folding device 3 can carry out the hem to the X of facial tissue to both sides, and the Y of second folding station can carry out the hem to both sides and compress tightly and carry facial tissue. Four arms b2 evenly around the periphery of support arm b21 to set up with four stations one-to-one, and all be provided with the mechanism of getting and putting that is used for adsorbing facial tissue and cardboard on each arm b2, this mechanism of getting and putting is including the sucking disc b22 that is used for getting and putting the paper material, wherein be provided with pneumatic rotary joint on the support arm b21 for butt joint sucking disc b22 on each arm b2, avoid the trachea that is connected with each sucking disc b22 to wind up at support arm b21 rotatory in-process.

In the use process, the lifting motor b112 rotates positively to drive each mechanical arm b2 to be close to each station until the sucker b22 collides with the material on each station, the lifting motor b112 rotates reversely to drive each mechanical arm b2 to be far away from each station after the sucker b22 adsorbs the material, meanwhile, the sucker b22 brings the adsorbed material away from the original station, then the rotating motor b111 drives each mechanical arm b2 to rotate to transfer the material of the previous station to the next station, and the lifting motor b112 rotates positively to drive each mechanical arm b2 to be close to each station until the transfer of the material is completed. In the process, the paper board on the paper board feeding station is absorbed and transferred to the facial tissue feeding station, so that the lamination of the paper board and facial tissue is completed, and the absorption state is kept from the paper board feeding station to the facial tissue feeding station sucker b 22; simultaneously, the materials on the facial tissue feeding station are transferred to a facial tissue first folding station until the folding procedure of the X-direction two sides of facial tissue is completed, and the facial tissue feeding station is kept in an adsorption state to a facial tissue first folding station sucker b 22; simultaneously, the materials on the first folding station of the facial tissues are transferred to the second folding station of the facial tissues until the materials fall into the sucker b22 of the second folding station to release the materials; meanwhile, the mechanical arm b2 of the compressed collecting station is transferred to the paperboard feeding station in a state of no adsorbed material until the sucking disc b22 is opened again after the mechanical arm b2 is abutted against the paperboard on the paperboard feeding station; so reciprocating cycle, through each arm b2 with each station around setting up in getting the blowing support b1 periphery, make whole capper be unlikely to too narrow overlength, can effectively solve the problem that current capper is high to the space requirement of factory building to effectively reduced the part quantity (if be used for driving the drive part of arm b 2) of capper, thereby be favorable to reducing the area of capper, and then be favorable to reducing the space requirement of capper to the factory building.

As an improved specific implementation mode, each mechanical arm b2 is provided with an X-direction mounting frame b3 for mounting a sucker b22 and a Y-direction mounting frame b4 fixedly connected with the mechanical arm b2, the X-direction mounting frame b3 comprises at least two X-direction mounting plates b31, each X-direction mounting plate b31 is arranged in parallel, the sucker b22 is connected to each X-direction mounting plate b31 in a sliding manner, and the sliding direction of the sucker b22 is the length direction of the X-direction mounting plate b 31; y is to mounting bracket b4 including the mounting bracket slide rail b41 that slides with X to mounting panel b31 and be connected with the drive shaft b42 that is used for driving X to mounting panel b31 and slides on mounting bracket slide rail b41 to the axial rotation on the mounting bracket b4, the length direction of drive shaft b42 and the length direction parallel arrangement of mounting bracket slide rail b41, the middle part and the Y of drive shaft b42 are rotated with Y to mounting bracket b4 and are connected, the both ends of drive shaft b42 all are provided with the drive screw thread with X to mounting panel b31 spiro union, and the screw direction of both ends drive screw thread is opposite, at least two X are to mounting panel b31 respectively with the drive screw thread spiro union at both ends, drive shaft b42 drives X to mounting panel b31 of both sides in the rotation in-process and is close to each other or keep away from.

The material taking and discharging mechanism further comprises an X-direction mounting frame b3 and a Y-direction mounting frame b4, when two X-direction mounting plates b31 are arranged, the two X-direction mounting plates b31 are respectively in threaded connection with driving threads at two ends of the driving shaft b42, so that the two X-direction mounting plates b31 can be mutually close to or far away from each other in the rotation process of the driving shaft b42, the adjustment of the distance between the suction cups b22 can be realized, and the adjustment mode is simpler and more convenient. When more than two X-direction mounting plates b31 are arranged, one end of the driving shaft b42 is screwed with a plurality of X-direction mounting plates b31, after the first X-direction mounting plate b31 is screwed to one end of the driving shaft b42, the first X-direction mounting plate b31 is screwed into the driving shaft b42 for a certain depth and then is screwed with the second X-direction mounting plate b31, so that the distance between the two X-direction mounting plates b31 can be adjusted by adjusting the depth of the first X-direction mounting plate b31 screwed into the driving shaft b42, and in the rotating process of the driving shaft b42, the plurality of X-direction mounting plates b31 at the two ends of the driving shaft b42 can synchronously move, thereby being convenient for operators to adjust. In addition, the sucker b22 can also slide on the X-direction mounting plate b31 along the length direction, so that the sucker b22 can be used for position adjustment from two directions, and can be used for conveniently adjusting a material taking and discharging mechanism to perform cover operation on products of various sizes, and the application range is wide.

As a concrete implementation of improvement, cardboard loading attachment 1 includes transport mounting bracket a1, be provided with a plurality of cardboard slide rail a2 on the transport mounting bracket a1, the length direction of cardboard slide rail a2 is the same with the length direction of transport mounting bracket a1 and a plurality of cardboard slide rail a2 is arranged along the width direction of transport mounting bracket a1, cardboard slide rail a2 all slides with transport mounting bracket a1 and is connected and the direction of sliding is the width direction of transport mounting bracket a1, be provided with on the transport mounting bracket a1 and be used for driving the width adjustment drive assembly a91 that cardboard slide rail a2 slided, cardboard width direction's both sides can erect respectively on two adjacent cardboard slide rail a2 and slide along the length direction of cardboard slide rail a2, cardboard slide rail a2 length direction's both ends are cardboard stack station a28 and cardboard location centering station a29 respectively, all be provided with between two adjacent cardboard slide rail a2 and be used for pushing away the first a3 of cardboard location centering station a29 by cardboard stack station a28, location centering station a29 is including being used for keeping apart two adjacent cardboard and to carry out a plurality of guide strips a21 that lead to the cardboard and be used for stopping that slide to slide a4 and be used for stopping and slide a4 and the length that can be used for moving about 5 to slide along the length adjustment drive assembly a5 a1, it is slided to be used for moving about 5 a 1.

When the paper board pushing head a3 drives the paper board to be conveyed between two guide strips a21 on two adjacent paper board sliding rails a2, the front end of the paper board in the conveying direction is propped against the paper board stop block a4, so that the paper board cannot be conveyed forwards continuously, at the moment, the paper board is automatically positioned, after the paper board is propped against the paper board stop block a4, the paper board pushing head a3 is retreated to the original position until the paper board is transferred to a facial tissue feeding station, and then the paper board pushing head a3 pushes the next paper board to slide; the width-adjusting driving assembly a91 is arranged, so that an operator can drive the paperboard slide rail a2 to slide along the width direction of the conveying installation frame a1 through the width-adjusting driving assembly a91 so as to adjust the distance between two adjacent paperboard slide rails a2, when the sizes of the conveyed paperboard are different, the operator can adjust the distance between the two adjacent paperboard slide rails a2 so as to adapt to the paperboards with different widths, and therefore the mechanism can convey the paperboards with different sizes and has strong applicability; because the length of different paperboards along the length direction of the conveying installation frame a1 is different, therefore, when the paperboards are in butt joint with the paperboard stop block a4, the middle points of the different paperboards along the length direction of the conveying installation frame a1 are different, and the movable polish rod a5 and the driving adjusting component a92 are arranged, so that when the mechanism is used for conveying paperboards with different sizes, a worker can drive the movable polish rod a5 to slide along the length direction of the conveying installation frame a1 through the driving adjusting component a92, the movable polish rod a5 can drive the paperboard stop block a4 to slide synchronously, the positions of the middle points of the different paperboards along the length direction of the conveying installation frame a1 are kept unchanged relative to the position of the conveying installation frame a1, and therefore, centering can be achieved for the different paperboards in the follow-up cover processing, and the paperboards can be accurately moved to a tissue feeding station.

As an improved specific implementation manner, the guide strips a21 are fixedly connected with the paperboard sliding rail a2, the opposite two side surfaces of two adjacent guide strips a21 are respectively a pushing surface and a datum plane, a positioning elastic sheet a211 for pushing the paperboard to the datum plane is arranged on the pushing surface, one side, close to the paperboard stacking station a28, of the positioning elastic sheet a211 is connected with the guide strips a21, a deformation gap for deforming the positioning elastic sheet a211 is formed between the other side and the guide strips a21, the positioning elastic sheet a211 is extruded when the paperboard is conveyed to the paperboard positioning and centering station a29, and the positioning elastic sheet a211 pushes the paperboard to be abutted against the datum plane under the action of elasticity.

The positioning elastic sheet a211 is close to one side of the paperboard stacking station a28 and fixedly connected with the guide strips a21 so that the paperboard is conveniently conveyed from the paperboard stacking station a28 to the paperboard positioning centering station a29, the positioning elastic sheet a211 is prevented from obstructing paperboard conveying, when the paperboard slides between two paperboard sliding rails a2, namely, the paperboard slides between two adjacent guide strips a21, the paper board cannot move in the width direction due to the fact that the distance between the two guide strips a21 is definitely larger than the width of the paperboard, after the paperboard is conveyed to the paperboard positioning centering station a29, the paperboard does not realize positioning in the width direction, the positioning elastic sheet a211 is arranged on one of the guide strips a21, the paperboard is extruded to the positioning elastic sheet a211 after the paperboard is conveyed to the paperboard positioning centering station a29, the positioning elastic sheet a211 is elastically deformed to one side of a deformation gap, and simultaneously, the paper board cannot move in the width direction due to the fact that the paper board is in the elastic force of the reference plane of the guide strip a21 on the other side, the paper board can not move in the width direction, and the paper board is accurately distributed to the two sides of the paper board is accurately arranged along the two opposite sides of the paper board positioning centering station a, and the paper board can be accurately distributed along the two sides when the two paper board positioning positions are accurately, and the paper board is accurately distributed along the two sides of the paper positioning positions is not aligned along the two paper base lines, and the two paper positioning positions can be accurately aligned along the two sides of the paper positioning positions, and the paper is accurately arranged along the two paper base plane when the paper positioning position is arranged along the two paper positioning direction, and the paper is positioned along the two paper positioning direction, and the paper positioning direction is positioned along the paper positioning direction, and the paper is positioned along the paper, and opposite to the paper positioning direction, and the paper position, and the paper is positioned and can is positioned and opposite to a position and can, through the setting of elastic sheet, this mechanism can fix a position the cardboard of carrying side by side and can control the distance between the adjacent cardboard, is favorable to follow-up processing to the cardboard and ensures that adjacent cardboard can overturn smoothly after making into the front cover.

As an improved specific implementation manner, the paperboard stacking station a28 comprises a plurality of clapboards a22 used for limiting stacked paperboards, the clapboards a22 are respectively and fixedly connected to the paperboard sliding rails a2, a fixing strip a23 used for blocking the sliding of the paperboards is arranged on one side of the clapboards a22 facing the paperboard positioning and centering station a29, a stacking cavity a24 used for stacking the paperboards is formed by surrounding the two adjacent paperboard sliding rails a2, the clapboards a22 and the fixing strip a23, and a sliding gap only used for sliding out one paperboard is reserved between the lower surface of the fixing strip a23 and the upper surface of the paperboard sliding rail a 2.

The height of the sliding gap is larger than the thickness of one paperboard and smaller than the thickness of two paperboards; through baffle a22 and fixed strip a 23's setting for the cardboard can pile up on conveying mounting bracket a1, cardboard push head a3 only promotes the cardboard that is located the bottom, the setting in clearance slides, make the cardboard of bottom can be smooth from being released in the clearance that slides, and other cardboards of bottom cardboard top will be blocked by fixed strip a23, be convenient for a plurality of cardboards are released simultaneously, lead to cardboard to carry, location and centering confusion, baffle a 22's setting will avoid the facial tissue that piles up to take place to topple, the operating personnel only need pile up the cardboard in pile up chamber a24, cardboard push head a3 will be automatic to carry out the cardboard one by one, the operating personnel operation reduces.

As an improved specific embodiment, the facial tissue feeding device 2 comprises a facial tissue centering and extracting mechanism 6 for positioning and conveying facial tissue which is not glued and a facial tissue conveying and positioning mechanism 7 for positioning the glued facial tissue, wherein the facial tissue centering and extracting mechanism 6 comprises a bearing table c1 for bearing the facial tissue, a facial tissue positioning component c2 for positioning the X direction of the facial tissue, a facial tissue centering component c3 for centering the Y direction of the facial tissue and a facial tissue conveying component c4 for conveying the facial tissue along the X direction of the facial tissue, the facial tissue centering component c3 comprises a centering screw rod c31 which is arranged above the bearing table c1 in parallel and two Y-direction baffle plates c32 for clamping the two sides of the Y direction of the facial tissue, the two ends of the centering screw rod c31 are connected with the bearing table c1 through a fixed wall plate c11, the two ends of the centering screw rod c31 are respectively in threaded connection with the two threaded sections, the two wall plates c3 for centering the two Y-direction baffle plates c are in opposite screw directions, the two fixed wall plates c11 are fixedly connected with the two Y-direction baffle plates c31 in parallel, and the two guide rails c33 c are in a state of being far away from each other, and the two guide rails c33 are arranged in parallel; the facial tissue positioning assembly c2 comprises a plurality of X-direction baffle plates c21 used for positioning the facial tissue X and a positioning frame cross rod c22 capable of approaching or keeping away from the linear guide rail c33, wherein the positioning frame cross rod c22 is horizontally arranged on the bearing table c1, both ends of the positioning frame cross rod c22 in the length direction are slidably connected with the bearing table c1 through a slide way c23, the length direction of the slide way c23 is along the X direction of the facial tissue, the linear guide rail c33 and the positioning frame cross rod c22 are slidably connected with the X-direction baffle plates c21, and the X-direction baffle plates c21 positioned on the linear guide rail c33 and the positioning frame cross rod c22 are mutually approaching or keeping away from under the sliding state of the positioning frame cross rod c22 along the slide way c 23.

The facial tissue centering and extracting mechanism 6 and the facial tissue conveying and positioning mechanism 7 are provided with a facial tissue gluing mechanism, the facial tissue enters the feeding end of the gluing mechanism from the discharging end of the facial tissue centering and extracting mechanism 6, the facial tissue is conveyed into the facial tissue conveying and positioning mechanism 7 after the gluing mechanism finishes gluing of the facial tissue, and the facial tissue conveying and positioning mechanism 7 positions and centers the facial tissue so that the paperboard can be accurately placed on the facial tissue. When the facial tissues are fed, firstly, an operator can directly place the stacked facial tissues on the bearing table c1, then slide the positioning frame cross rod c22 towards one side of the linear guide rail c33, so that the X-direction baffle c21 on the positioning frame cross rod c22 pushes the facial tissues to move towards the X-direction baffle c21 on the linear guide rail c33 until the facial tissues are positioned between the X-direction baffles c21, positioning is realized on the facial tissues in the X direction, then the centering screw c31 is rotated to enable the two Y-direction baffles c32 to continuously approach to the position where the two Y-direction baffles c32 are abutted against both Y-direction sides of the stacked facial tissues, and as the two Y-direction baffles c32 synchronously move towards the middle of the centering screw c31 and have the same moving speed, the middle point position of the two Y-direction baffles c32 is unchanged all the time, the facial tissues are finally limited between the two Y-direction baffles c32 and the Y-direction two sides of the facial tissues are abutted against the two Y-direction baffles c32, and the Y-direction middle point positions of the facial tissues are overlapped with the middle point positions of the two Y-direction baffles c32 at the moment, all the facial tissues stacked together are completely abutted with the middle point positions of the two Y-direction baffles c32, and all the centering tissues can be positioned together, the centering mechanism and the centering screw c can be simply moved, and the centering machine can realize positioning and positioning of the centering screw c and positioning operation can be realized by the centering screw and positioning operation of the operator.

The facial tissue conveying assembly c4 can comprise a negative pressure sucker b22 used for absorbing the facial tissue, a facial tissue plug-in unit capable of being inserted between facial tissues, a feeding conveying belt used for conveying the facial tissues, a rubber roll and a plurality of pressing wheels, wherein the rubber roll and the pressing wheels are used for pulling the facial tissues, the feeding conveying belt is arranged on the bearing table c1, the facial tissues are partially arranged above the feeding conveying belt, a bending notch used for bending the facial tissues of the bottom layer is formed in the bearing table c1, the negative pressure sucker b22 is arranged below the bending notch, the negative pressure sucker b22 is arranged in a state of downwards sucking the facial tissues, the feeding conveying belt can drive the facial tissues to move, the facial tissues plug-in unit is located in the facial tissue conveying direction, the facial tissues plug-in unit is connected with the bearing table c1 through a plug-in unit shaft in a fixed mode, the plug-in unit shaft is connected with two fixed wall boards c11 in a rotary mode, the rubber roll is arranged between the facial tissues plug-in unit and the adjacent facial tissues in a state of being driven by the plug-in shaft in a rotary mode, the rubber roll is arranged at the front of the front end of the conveying belt in the conveying direction, the rubber roll is connected with the two ends of the rubber roll in a rotary mode, and the two ends of the rubber roll can be connected with the rubber roll c11 in a rotary mode, and the two ends of the rubber roll can be abutted to the two fixed on the two ends of the rubber roll and the rubber roll. The negative pressure sucking disc b22 can be connected with the air pump for negative pressure sucking disc b22 can inhale, the one end of plug-in components axle can be through connecting rod and cam mechanism realization plug-in components axle rotate repeatedly, the cam accessible motor or drive mechanism drive is rotatory, rubber roll length direction's one end can be connected with motor or transmission, make the rubber roll can keep rotatory state, when negative pressure sucking disc b22 inhales, the facial tissue of bottom will buckle in to buckling the breach, form the inserted clearance that supplies facial tissue plug-in components between facial tissue and the adjacent facial tissue this moment, the plug-in components axle rotation drives facial tissue plug-in components by facial tissue's the direction front end upset to facial tissue one side, facial tissue plug-in components can insert to facial tissue between facial tissue one side through the inserted clearance, the material loading conveyer belt drives the facial tissue and carries at this moment, and other facial tissue can not follow the facial tissue together and carry under the barrier effect of X direction baffle c21 and facial tissue plug-in components's interval effect, when facial tissue of bottom is carried to its front end and enters into between rubber roll and the pinch roller, facial tissue will be pressed on the rubber roll, rotatory rubber roll will drive facial tissue forward and carry on the pinch roller.

As an improved concrete implementation mode, the facial tissue conveying and positioning mechanism 7 comprises a conveying frame d1, a plurality of negative pressure channels d2 are arranged on the conveying frame d1, channel openings d21 used for conducting the negative pressure channels d2 with the outside are arranged above the negative pressure channels d2, the negative pressure channels d2 and the length direction of the channel openings d21 are all arranged along the length direction of the conveying frame d1 and the negative pressure channels d2 are arranged along the width direction of the conveying frame d1, a plurality of facial tissue conveying belts d22 used for driving facial tissue to be conveyed are arranged on the conveying frame d1, the facial tissue conveying belts d22 and the negative pressure channels d2 are correspondingly arranged and cover the channel openings d21, a plurality of air suction holes d221 are arranged on the facial tissue conveying belts d22, the two ends of the suction hole d221 are respectively communicated with a negative pressure channel d2 and the outside, the negative pressure channel d2 is connected with the suction end of the negative pressure device, the facial tissue is adsorbed on the facial tissue conveying belt d22 when the facial tissue conveying belt d22 drives the facial tissue to be conveyed, a channel adjusting opening for adjusting the pressure in the negative pressure channel d2 is arranged on the conveying frame d1, the two ends of the channel adjusting opening are respectively communicated with the negative pressure channel d2 and the outside, an opening adjusting plate d24 is also arranged on the conveying frame d1, the opening adjusting plate d24 is correspondingly arranged with the channel adjusting opening and hinged with the conveying frame d1, and the opening size of the channel adjusting opening communicated with the outside can be changed when the opening adjusting plate d24 is rotated; a positioning stop block d3 for blocking facial tissue conveying is arranged between any two adjacent facial tissue conveying belts d22, a plurality of positioning stop blocks d3 are arranged along the width direction of the conveying frame d1, the lower ends of the positioning stop blocks d3 are fixedly connected with a positioning rotating rod d31, the positioning rotating rod d31 is hinged with a sliding panel d32 capable of sliding along the length direction of the conveying frame d1, the plane where the positioning rotating rod d31 is positioned in the rotating process is parallel to the upper surface of the conveying frame d1, a steel wire flexible shaft d33 for driving the positioning rotating rod d31 to rotate and an adjusting screw rod d34 for driving the sliding panel d32 to slide are arranged on the conveying frame d1, and the sliding panel d32 is in threaded connection with the adjusting screw rod d 34.

When the facial tissues enter the upper part of the facial tissue conveying belt d22 from the feeding end of the conveying frame d1, the negative pressure device works to enable the front end of the facial tissue conveying belt d22 to suck and adsorb the facial tissues, so that the facial tissues can be clung to the facial tissue conveying belt d22 and conveyed along with the facial tissue conveying belt d22, an operator can change the opening size of a channel regulating opening communicated with the outside through rotating an opening regulating plate d24, the smaller the opening size is, the greater the suction force of the facial tissues is caused by the suction hole d221, when the facial tissues conveying belt d22 moves to drive the facial tissues on the facial tissues conveying belt d22 to be conveyed, the front end of the facial tissues in the conveying direction is finally abutted to a positioning stop block d3 arranged in a straight line, the initial direction of the straight line formed by the positioning stop block d3 is perpendicular to the conveying direction of the facial tissues conveying belt d22, when the facial tissues are automatically positioned, when the facial tissues are used for conveying facial tissues with different sizes, the operator can drive a sliding panel d32 to move on the conveying frame d1 through rotating an adjusting screw rod d34, the sliding panel d32 is enabled to be driven by the adjusting screw rod d34, the sliding panel d32 to move along the middle point of the sliding panel d1, and the position of the sliding panel d32 is not enabled to be different from the same, and the opposite to the position of the surface 1 is enabled to be different in the conveying direction along the opposite direction; the shapes of facial tissues of different types are possibly different, the abutting edges of some facial tissues and the positioning stop blocks d3 are inclined edges, and the positioning rotary rods d31 and the steel wire flexible shafts d33 are arranged, so that workers can drive the positioning rotary rods d31 to rotate through the steel wire flexible shafts d33, the positioning rotary rods d31 drive the positioning stop blocks d3 to move in a rotating state, the linearly arranged positioning stop blocks d3 incline until the inclination angle of the positioning stop blocks d3 is the same as that of the inclined edges of the facial tissues, and at the moment, the inclined edges of the facial tissues abut against the positioning stop blocks d3 which are obliquely linearly arranged in the conveying process, so that the facial tissues are prevented from rotating; the operator only needs to drive the rotation of the positioning rotary rod d31 through the steel wire flexible shaft d33 and can finish the adjustment of the positioning stop block d3, the operation is simple, the structure can be suitable for facial tissues of various facial tissues with different shapes, and the applicability is strong.

As an improved specific implementation mode, one end joint of a steel wire flexible shaft d33 is in threaded connection with a positioning rotating rod d31, the other end joint of the steel wire flexible shaft d33 is connected with a flexible shaft knob d331 for rotating the steel wire flexible shaft d33, one end of the steel wire flexible shaft d33, which is close to the positioning rotating rod d31, is axially fixed with a sliding panel d32 and is in circumferential rotatable connection, one end of the steel wire flexible shaft d33, which is connected with the flexible shaft knob d331, is in rotational connection with one side of the width direction of a conveying frame d1, and the positioning rotating rod d31 is driven to rotate around the hinged position of the positioning rotating rod d31 and the conveying frame d1 in a rotating state of the flexible shaft knob d 331.

The two ends of the length direction of the conveying frame d1 are respectively connected with equipment of the last station and the next station, so that the flexible shaft knob d331 is arranged on one side of the width direction of the conveying frame d1, an operator can conveniently rotate the flexible shaft knob d331 on one side of the width direction of the conveying frame d1, when the operator rotates the knob, the steel wire flexible shaft d33 is driven to rotate, as one end joint of the steel wire flexible shaft d33 is in threaded connection with the positioning rotating rod d31 and the steel wire flexible shaft d33 is fixedly connected with the sliding panel d32 in the axial direction, the steel wire flexible shaft d33 cannot axially move in the rotating process, the positioning rotating rod d31 is driven to rotate, the operator can drive the steel wire flexible shaft d33 to rotate through the arrangement of the structure, the positioning rotating rod d31 is enabled to rotate so as to adjust the positioning stop block d3, the structure is simple, the operation of the operator is simple, and the use is convenient.

As a modified specific embodiment, the first edge folding device 3 and the second edge folding device 4 both comprise edge folding mechanisms 8, the edge folding mechanisms 8 comprise edge folding brackets e1, lower folded plates e17 arranged on the edge folding brackets e1 and upper folded plates e18 arranged above the lower folded plates e17, the upper folded plates e18 and the lower folded plates e17 are arranged in parallel, the gap between the upper folded plates e18 and the lower folded plates e17 is smaller than the edge folding width of the paper extending out of the paper board, the upper folded plates e18 are provided with two folded plates e18, the two upper folded plates e18 are positioned on two opposite sides of the paper board, and the gap between the two upper folded plates e18 is larger than the length of the paper board and smaller than the length of the paper board; the folding support e1 or the lower folding plate e17 is provided with an inclined pressing device e2 for driving the upper folding plate e18 to slide obliquely from top to bottom, inclined tracks of the two upper folding plates e18 are arranged in a V-shaped structure, the inclined pressing device e2 comprises inclined pressing swing arms e21 positioned at two ends of the upper folding plate e18 in the length direction, at least two inclined pressing swing arms e21 positioned at one end are arranged, the inclined pressing swing arms e21 are arranged in parallel, one end of each inclined pressing swing arm e21 is hinged with the upper folding plate e18, the other end of each inclined pressing swing arm e21 is hinged with the lower folding plate e17 or the folding support e1, and an inclined pressing cylinder for pushing the inclined pressing swing arms e21 to swing is arranged on the lower folding support e17 or the folding support e 1; the oblique pressing cylinder pushes the oblique pressing swing arm e21 to drive the upper folded plate e18 to incline downwards in the swing process and be close to the lower folded plate e17 until the upper folded plate e18 is attached to the lower folded plate e17, the upper folded plate e18 comprises a folded plate mounting plate e181 and a special-shaped folded plate e182 detachably connected with the folded plate mounting plate e181, and the special-shaped folded plate e182 is provided with a special-shaped folded edge towards one side of the paperboard.

In the flanging operation, because the interval between the two upper folded plates e18 is larger than the length of the paper board and smaller than the length of the facial tissues, the facial tissues which are adhered with the facial tissues are upwards bent under the action of the two upper folded plates e18 in the process of being arranged on the lower folded plate e17, and because the interval between the upper folded plates e18 and the lower folded plates e17 is smaller than the flanging width of the facial tissues which are adhered with the facial tissues, the facial tissues which are adhered with the facial tissues are still in abutting connection with the two upper folded plates e18 after being arranged on the lower folded plate e17, and the facial tissues which are adhered with the facial tissues are in a U-shaped structure; in the oblique pressing process, the oblique pressing air cylinder can drive the oblique pressing swing arm e21 to swing, so that the upper folded plate e18 is pushed to incline downwards to be close to the lower folded plate e17 until the upper folded plate e17 is attached to the lower folded plate, facial tissues extending out of the edge of the paperboard in the process are folded and attached to the side face above the paperboard, and each oblique pressing swing arm e21 arranged in parallel can enable the upper folded plate e18 to be always kept in a horizontal state, so that the folding effect of the upper folded plate e18 and the lower folded plate e17 on facial tissues is improved. In addition, when the oblique pressing cylinder drives the oblique pressing swing arm e21 to swing reversely, the upper folded plate e18 can be obliquely upwards far away from the lower folded plate e17, so that the material can be conveniently taken out, and the phenomenon that the facial tissues just bonded with the paperboards are moved due to horizontal sliding of the upper folded plate e18 can be avoided (when the folding is carried out, the glue on the facial tissues is in a moist state, and when the folding is carried out, the bonding effect is easily influenced in the horizontal movement). One side of the special-shaped folded plate e182 can be detachably connected with the folded plate mounting plate e181 through bolts, and the other side of the special-shaped folded plate e can be provided with a special-shaped folded edge matched with the outer contour of a finished product, so that one side of the upper folded plate e18 facing the paperboard is matched with the outer contour of the paperboard, and the folded edge can be matched with the outer contour of the paperboard in the process of obliquely pressing down the upper folded plate e 18; and the folded plate mounting plate e181 and the special-shaped folded plate e182 can be detachably connected through bolts, so that paperboards with different outer contours can be conveniently matched through replacing the special-shaped folded plate e182, and the application range of the flanging device is further enlarged.

As an improved specific embodiment, the second edge folding device 4 comprises a conveying device e3 for conveying finished products after edge folding, the conveying device e3 comprises a finished product conveying wheel e31 rotatably connected to the lower folded plate e17 and a conveying motor e32 for driving the finished product conveying wheel e31 to rotate, two finished product conveying wheels e31 are arranged and are respectively positioned at two ends of the lower folded plate e17 in the length direction, a finished product conveying belt e33 is wound between the two finished product conveying wheels e31, the upper end face of the finished product conveying belt e33 wound between the two finished product conveying wheels e31 is parallel to the upper end face of the lower folded plate e17, and the upper end face of the finished product conveying belt e33 is slightly higher than the upper end face of the lower folded plate e 17; the folding bracket e1 is also rotationally connected with a driving press roller e11 and a driven press roller e12 and a press roller motor e112 which is fixed on the folding bracket e1 and used for driving the driving press roller e11 to rotate, the driving press roller e11 and the driven press roller e12 are arranged in parallel, a pressing gap for a conveying device e3 to convey the paper board to pass through is reserved between the driving press roller e11 and the driven press roller e12, the pressing gap is positioned at the discharge end of the conveying device e3 and corresponds to the height of a finished product conveying belt e33, the folding bracket e1 is rotationally connected with a supporting roller e14 used for supporting the paper board after the pressing gap, the supporting roller e14 is positioned at the discharge ends of the driving press roller e11 and the driven press roller e12, the supporting roller e14 is arranged in parallel with the driving press roller e11, the supporting roller e14 is matched with the height of the pressing gap, and the distance between the supporting roller e14 and the pressing gap is smaller than the length of the paper board; the paper board receiving device e4 for receiving paper boards falling through the supporting roller e14 is arranged on one side of the discharging ends of the driving pressing roller e11 and the driven pressing roller e12, the receiving device e4 comprises two receiving plates e41 positioned at two ends of the paper board pressing conveying direction, a receiving driving assembly e42 for driving the receiving plates e41, and a counting sensor for counting the quantity of the paper boards falling through the supporting roller e14, when the receiving driving assembly e42 drives the two receiving plates e41 to oppositely turn to a horizontal state, the paper boards falling through the supporting roller e14 fall on the two receiving plates e41, and when the receiving driving assembly e42 drives the two receiving plates e41 to downwards turn to a vertical state, the paper boards received by the two receiving plates e41 downwards fall.

After the folding is finished, the conveying motor e32 is started, and the finished product conveying belt e33 is driven to rotate by the finished product conveying wheel e31, so that the folded finished product positioned on the lower folded plate e17 can be conveyed outwards; and in the scheme, only the paperboard attached with the facial tissues is arranged on the lower folded plate e17, then the inclined air pressing cylinder is started to finish the folding operation, the operation mode is simple and convenient, the implementation structure is simple and easy to implement, the pipelined guiding folding operation is not needed, the folding and pressing of the facial tissues are finished only in one step, the occupied area of the machine body is greatly reduced, the finished products after folding can be timely and outwards conveyed through the conveying device e3, the use automation degree of folding equipment is effectively improved, meanwhile, the conveying device e3 and the lower folded plate e17 are skillfully combined, the structure of the folding equipment is greatly optimized, and the occupied area of the machine body is further reduced. The paper board is conveyed to the pressing mechanism through the conveying device e3, finally, the paper board is conveyed into the pressing gap, the paper board is erected on the supporting roller e14 after being pressed, the bearing driving assembly e42 drives the two bearing plates e41 to turn over to be in a horizontal state in opposite directions, the distance between the two bearing plates e41 is smaller than the length dimension of the paper board, therefore, when the paper board falls down through the supporting roller e14, the two sides of the paper board in the length direction are respectively borne by the two bearing plates e41, wherein the counting sensor can be positioned between the driving pressing roller e11 and the supporting roller e14 and used for detecting the quantity of the paper board passing through the supporting roller e14, when the quantity reaches a set value, the bearing driving assembly e42 drives the two bearing plates e41 to turn over to be in a vertical state in opposite directions, at the moment, the distance between the two bearing plates e41 is not smaller than the length dimension of the paper board, the paper board piled on the bearing plates e41 falls down under the action of gravity, the bearing driving assembly e42 drives the two bearing plates e41 to turn over to be in a horizontal state in opposite directions for bearing again, the number of piles falls down is set value, and a finished product conveying belt e can be arranged below the bearing plates e41 for conveying the paper board 33 to be piled down. The cardboard after this in-process pressfitting is erect on backing roll e14 by the one end after the pressfitting of initiative compression roller e11 and driven compression roller e12 through the pressfitting clearance, and backing roll e14 can carry out effectual support to the cardboard, avoids unsettled and producing the bending of hem finished product through the compression roller pressfitting to be favorable to improving pressing mechanism's yields. The cardboard falls into in carrying device e4 after again through count sensor and backing roll e14 and stacks, consequently can count the cardboard through count sensor to reduce operating personnel's count work, can directly reduce this count manual work even, be favorable to reducing the cost of labor, and be favorable to improving equipment degree of automation.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims

1. A cover machine, characterized in that: including cardboard loading attachment (1), facial tissue loading attachment (2), be used for carrying out first folding edge device (3) of hem to the X of facial tissue to both sides, be used for carrying out second folding edge device (4) of hem to the Y of facial tissue to both sides and be used for getting facial tissue and cardboard in succession and put get blowing device (5) in each device, get blowing device (5) including get blowing support (b 1) and set up arm (b 2) on getting blowing support (b 1) and set up a plurality of sucking discs (b 22) on arm (b 2), arm (b 2) are provided with four to evenly around setting up in the periphery of support arm (b 21), cardboard loading attachment (1), facial tissue loading attachment (2), first folding edge device (3) and second folding edge device (4) are evenly distributed in getting blowing support (b 1) periphery along the central axis of support arm (b 21) in proper order, be provided with on getting blowing support (b 1) and be used for driving rotating electrical machinery (b 21) and a plurality of sucking discs (b 22) on getting blowing support (b 21) and driving device (b) and drive arm (b) and can be used for driving station (b) to rotate (11) a station (b) and can be located down to the rotation station (b) of rotation (11) The lifting motor (b 112) is used for driving the supporting arm (b 21) to lift and can drive the mechanical arm (b 2) to approach or depart from the station;

The feeding and discharging device comprises a feeding and discharging support (b 1), wherein a guide column (b 12) and a lifting plate (b 13) which is connected with the guide column (b 12) in a sliding manner are fixedly arranged on the feeding and discharging support (b 1), the length direction of the guide column (b 12) is consistent with the length direction of a supporting arm (b 21), the sliding direction of the lifting plate (b 13) on the guide column (b 12) is the length direction of the guide column (b 12), a rotating motor (b 111) is fixedly connected with the lifting plate (b 13), and the output end of the rotating motor (b 111) penetrates through the lifting plate (b 13) and is fixedly connected with the supporting arm (b 21);

the lifting device comprises a lifting plate (b 13), a lifting support (b 1), a driving screw (b 14) in threaded connection with the lifting plate (b 13), wherein the driving screw (b 14) is arranged in parallel with a guide post (b 12), a driven gear (b 141) is fixedly connected to the driving screw (b 14), a lifting motor (b 112) is fixedly connected with the lifting support (b 1), a driving gear (b 113) for driving the driven gear (b 141) to rotate is fixedly connected to the output end of the lifting motor (b 112), and the lifting motor (b 112) drives the driving screw (b 14) to slide along the length direction of the guide post (b 12) in the rotating process of the lifting plate (b 13) in threaded connection with the driving screw (b 14);

each mechanical arm (b 2) is provided with an X-direction mounting frame (b 3) for mounting a sucker (b 22) and a Y-direction mounting frame (b 4) fixedly connected with the mechanical arm (b 2), the X-direction mounting frame (b 3) comprises at least two X-direction mounting plates (b 31), each X-direction mounting plate (b 31) is arranged in parallel, the sucker (b 22) is glidingly connected to each X-direction mounting plate (b 31), and the sliding direction of the sucker (b 22) is the length direction of each X-direction mounting plate (b 31);

Y is to mounting bracket (b 4) including the mounting bracket slide rail (b 41) of being connected with X to mounting panel (b 31) slides, axial rotation is connected with drive shaft (b 42) that are used for driving X to mounting panel (b 31) and slide on mounting bracket slide rail (b 41) on Y is to mounting bracket (b 4), the length direction of drive shaft (b 42) and the length direction parallel arrangement of mounting bracket slide rail (b 41), the middle part and the Y of drive shaft (b 42) are rotated with Y to mounting bracket (b 4) and are connected, the both ends of drive shaft (b 42) all are provided with the drive screw thread with X to mounting panel (b 31) spiro union, and the screw direction of both ends drive screw thread is opposite, and at least two X are to mounting panel (b 31) respectively with the drive screw thread spiro union at both ends, drive shaft (b 42) are close to or keep away from each other in X to mounting panel (b 31) of rotation in the in-process drive both sides.

2. A cover machine as defined in claim 1, wherein: cardboard loading attachment (1) is including carrying mounting bracket (a 1), be provided with a plurality of cardboard slide rail (a 2) on carrying mounting bracket (a 1), the length direction of cardboard slide rail (a 2) is the same and a plurality of cardboard slide rail (a 2) are arranged along the width direction of carrying mounting bracket (a 1) with the length direction of carrying mounting bracket (a 1), cardboard slide rail (a 2) all slide with carrying mounting bracket (a 1) and the direction of sliding is the width direction of carrying mounting bracket (a 1), be provided with on carrying mounting bracket (a 1) and be used for driving cardboard slide rail (a 2) to slide transfer wide drive assembly (a 91), cardboard width direction's both sides can erect respectively on two adjacent cardboard slide rail (a 2) and slide along the length direction of cardboard slide rail (a 2), cardboard slide rail (a 2) length direction's both ends are cardboard stack station (a 28) and location centering station (a 29) respectively, all are provided with between two adjacent cardboard slide rail (a 2) and are used for will be piled up cardboard stack station (a 28) and the direction centering station (a 29) to carry out the direction guide block (a) of a plurality of cardboard (a) and stop block (a) that is used for two cardboard slide rail (a 4) to slide rail (a) to slide, the cardboard dog (a 4) is connected with movable polished rod (a 5) that can slide along the length direction of conveyor mounting bracket (a 1), still be provided with on conveyor mounting bracket (a 1) and be used for driving drive adjusting part (a 92) that movable polished rod (a 5) slided.

3. A cover machine as defined in claim 2, wherein: the utility model provides a cardboard stacks station (a 28) including a plurality of baffle (a 22) that are used for carrying out spacing to the cardboard of stacking, baffle (a 22) are fixed connection respectively on cardboard slide rail (a 2), baffle (a 22) all are provided with fixed strip (a 23) that are used for blockking the cardboard and slide towards cardboard location centering station (a 29) one side, and adjacent two cardboard slide rail (a 2), baffle (a 22) and fixed strip (a 23) enclose into stack chamber (a 24) that supplies the cardboard to stack, all leave the clearance that slides that only supplies a cardboard to slide between fixed strip (a 23) lower surface and cardboard slide rail (a 2) upper surface.

4. A cover machine as defined in claim 3, wherein: the paper board positioning and centering device is characterized in that the guide strips (a 21) are fixedly connected with the paper board sliding rails (a 2), two opposite side surfaces of two adjacent guide strips (a 21) are respectively a pushing surface and a datum surface, a positioning elastic sheet (a 211) for pushing paper boards to the datum surface is arranged on the pushing surface, one side, close to a paper board stacking station (a 28), of the positioning elastic sheet (a 211) is connected with the guide strips (a 21), a deformation gap for the positioning elastic sheet (a 211) to deform is formed between the other side and the guide strips (a 21), the positioning elastic sheet (a 211) is extruded when the paper boards are conveyed to the paper board positioning and centering station (a 29), and the positioning elastic sheet (a 211) pushes the paper boards to be abutted to the datum surface under the action of elasticity.

5. A cover machine as defined in claim 1, wherein: the facial tissue feeding device (2) comprises a facial tissue centering and extracting mechanism (6) for positioning and conveying the facial tissue which is not glued and a facial tissue conveying and positioning mechanism (7) for positioning the facial tissue which is glued, the facial tissue centering and extracting mechanism (6) comprises a bearing table (c 1) for bearing the facial tissue, a facial tissue positioning component (c 2) for positioning the X direction of the facial tissue, a facial tissue centering component (c 3) for centering the Y direction of the facial tissue and a facial tissue conveying component (c 4) for conveying the facial tissue along the X direction of the facial tissue, the facial tissue centering component (c 3) comprises a centering screw rod (c 31) which is arranged above the bearing table (c 1) in parallel and two Y-direction baffles (c 32) for clamping the Y direction of the facial tissue at two sides, the two ends of the centering screw rod (c 31) in the length direction are connected with the bearing table (c 1) through a fixed wallboard (c 11), threaded sections are arranged at the two ends of the centering screw rod (c 31), two Y-direction baffles (c 32) are respectively connected to the two threaded sections in a threaded mode, the spiral directions of the two threaded sections are opposite, a linear guide rail (c 33) for sliding the Y-direction baffles (c 32) is fixedly connected between the two fixed wallboards (c 11), the linear guide rail (c 33) is arranged in parallel with the centering screw rod (c 31), and the two Y-direction baffles (c 32) are close to or far away from each other in the rotating state of the centering screw rod (c 31); the facial tissue positioning assembly (c 2) comprises a plurality of X-direction baffles (c 21) used for positioning facial tissue X and a positioning frame cross rod (c 22) capable of approaching or separating from a linear guide rail (c 33), wherein the positioning frame cross rod (c 22) is horizontally arranged on a bearing table (c 1) and both ends of the positioning frame cross rod (c 22) in the length direction are slidably connected with the bearing table (c 1) through a slide way (c 23), the length direction of the slide way (c 23) is along the X direction of facial tissue, the linear guide rail (c) and the positioning frame cross rod (c 22) are slidably connected with the X-direction baffles (c 21), and the X-direction baffles (c 21) on the linear guide rail (c 33) and the positioning frame cross rod (c 22) are mutually approaching or separating from each other in the slide way (c 23).

6. A cover machine as defined in claim 5, wherein: the facial tissue conveying and positioning mechanism (7) comprises a conveying frame (d 1), a plurality of facial tissue conveying belts (d 22) used for driving facial tissue conveying are arranged on the conveying frame (d 1), a plurality of air suction holes (d 221) are formed in the upper portion of the facial tissue conveying belts (d 22) and cover the air suction holes (d 21) corresponding to the negative pressure channels (d 2), the two ends of the air suction holes (d 221) are respectively communicated with the negative pressure channels (d 2) and the outside, the negative pressure channels (d 2) and the negative pressure devices are arranged along the width direction of the conveying frame (d 1), the facial tissue conveying belts (d 22) used for driving facial tissue conveying are arranged on the conveying frame (d 1), the facial tissue conveying belts (d 22) and the negative pressure channels (d 2) are correspondingly arranged and cover the air suction holes (d 21) of the channels, the two ends of the facial tissue conveying belts (d 22) are respectively communicated with the negative pressure channels (d 2) and the outside, the pressure suction holes (d 221) are respectively connected with the facial tissue conveying belts (d 2) at the two ends of the negative pressure devices, the facial tissue conveying belts (d 2) are respectively arranged on the two lower side regulating plates (d 1) and are respectively connected with the facial tissue conveying belts (d 2), the opening adjusting plate (d 24) is arranged corresponding to the channel adjusting opening, the opening adjusting plate (d 24) is hinged with the conveying frame (d 1), and the opening size of the channel adjusting opening communicated with the outside can be changed under the rotating state of the opening adjusting plate (d 24);

A positioning stop block (d 3) for blocking facial tissue conveying is arranged between any two adjacent facial tissue conveying belts (d 22), a plurality of positioning stop blocks (d 3) are arranged along the width direction of the conveying frame (d 1), the lower ends of the positioning stop blocks (d 3) are fixedly connected with a positioning rotating rod (d 31), the positioning rotating rod (d 31) is hinged with a sliding panel (d 32) capable of sliding along the length direction of the conveying frame (d 1), the plane where the positioning rotating rod (d 31) is located in the rotating process is parallel to the upper surface of the conveying frame (d 1), a steel wire flexible shaft (d 33) used for driving the positioning rotating rod (d 31) to rotate and an adjusting screw rod (d 34) used for driving the sliding panel (d 32) to slide are arranged on the conveying frame (d 1), and the sliding panel (d 32) is in threaded connection with the adjusting screw rod (d 34).

7. A cover machine as defined in claim 6, wherein: one end of the steel wire flexible shaft (d 33) is connected with the positioning rotating rod (d 31) in a threaded mode, the other end of the steel wire flexible shaft is connected with a flexible shaft knob (d 331) used for rotating the steel wire flexible shaft (d 33), one end of the steel wire flexible shaft (d 33) close to the positioning rotating rod (d 31) is axially fixed with the sliding panel (d 32) and is in circumferential rotatable connection, one end of the steel wire flexible shaft (d 33) connected with the flexible shaft knob (d 331) is in rotational connection with one side of the width direction of the conveying frame (d 1), and the positioning rotating rod (d 31) is driven to rotate around the hinged position of the positioning rotating rod (d 31) and the conveying frame (d 1) in a rotating state.

8. A cover machine as defined in claim 1, wherein: the first edge folding device (3) and the second edge folding device (4) comprise edge folding mechanisms (8), the edge folding mechanisms (8) comprise edge folding supports (e 1), lower folded plates (e 17) arranged on the edge folding supports (e 1) and upper folded plates (e 18) arranged above the lower folded plates (e 17), the upper folded plates (e 18) and the lower folded plates (e 17) are arranged in parallel, the gap between the upper folded plates (e 18) and the lower folded plates (e 17) is smaller than the edge folding width of the tissue extending out of the paper board, the upper folded plates (e 18) are provided with two upper folded plates (e 18) which are arranged on two opposite sides of the tissue, and the distance between the two upper folded plates (e 18) is larger than the length of the paper board and smaller than the length of the tissue; the folding support (e 1) or the lower folding plate (e 17) is provided with an inclined pressing device (e 2) for driving the upper folding plate (e 18) to slide obliquely from top to bottom, inclined tracks of the two upper folding plates (e 18) are arranged in a V-shaped structure, the inclined pressing device (e 2) comprises inclined pressing swing arms (e 21) positioned at two ends of the upper folding plate (e 18) in the length direction, at least two inclined pressing swing arms (e 21) positioned at one end are arranged, the inclined pressing swing arms (e 21) are arranged in parallel, one end of each inclined pressing swing arm (e 21) is hinged with the upper folding plate (e 18), the other end of each inclined pressing swing arm is hinged with the lower folding plate (e 17) or the folding support (e 1), and an inclined pressing cylinder for pushing the inclined pressing swing arms (e 21) to swing is arranged on the lower folding plate (e 17) or the folding support (e 1); the oblique pressure cylinder pushes the oblique pressure swing arm (e 21) to drive the upper folded plate (e 18) to incline downwards in the swing process and close to the lower folded plate (e 17) until the upper folded plate (e 18) is attached to the lower folded plate, the upper folded plate (e 18) comprises a folded plate mounting plate (e 181) and a special-shaped folded plate (e 182) detachably connected with the folded plate mounting plate (e 181), and the special-shaped folded plate (e 182) is provided with a special-shaped folded edge towards one side of the paper board.

9. The cover machine as set forth in claim 8, wherein: the second flanging device (4) comprises a conveying device (e 3) for conveying finished products after flanging, the conveying device (e 3) comprises a finished product conveying wheel (e 31) rotatably connected to the lower folding plate (e 17) and a conveying motor (e 32) for driving the finished product conveying wheel (e 31) to rotate, the two finished product conveying wheels (e 31) are respectively arranged at two ends of the lower folding plate (e 17) in the length direction, a finished product conveying belt (e 33) is wound between the two finished product conveying wheels (e 31), the upper end face of the finished product conveying belt (e 33) wound between the two finished product conveying wheels (e 31) is arranged in parallel with the upper end face of the lower folding plate (e 17), and the upper end face of the finished product conveying belt (e 33) is slightly higher than the upper end face of the lower folding plate (e 17);

the folding support (e 1) is further rotationally connected with a driving press roller (e 11) and a driven press roller (e 12) and a press roller motor (e 112) which is fixed on the folding support (e 1) and used for driving the driving press roller (e 11) to rotate, the driving press roller (e 11) and the driven press roller (e 12) are arranged in parallel, a pressing gap for a conveying device (e 3) to convey paper boards to pass through is reserved between the driving press roller (e 11) and the driven press roller (e 12), the pressing gap is positioned at the discharge end of the conveying device (e 3) and corresponds to the height of a finished product conveying belt (e 33), a supporting roller (e 14) for supporting the paper boards after the pressing gap is rotationally connected to the folding support (e 1), the supporting roller (e 14) is positioned at the discharge end of the driving press roller (e 11) and the driven press roller (e 12), the supporting roller (e 14) is arranged in parallel to the driving press roller (e 11), the supporting roller (e 14) is matched with the height of the pressing gap, and the distance from the supporting roller (e 14) to the pressing gap is smaller than the size of the pressing gap;

The paper board conveying device is characterized in that a bearing device (e 4) for bearing paper boards falling through a supporting roller (e 14) is arranged on one side of the discharging end of the driving pressing roller (e 11) and one side of the discharging end of the driven pressing roller (e 12), the bearing device (e 4) comprises two bearing plates (e 41) positioned at two ends of the paper board pressing conveying direction, a bearing driving assembly (e 42) for driving the bearing plates (e 41), and a counting sensor for counting the number of the paper boards falling through the supporting roller (e 14), when the bearing driving assembly (e 42) drives the two bearing plates (e 41) to oppositely overturn to be in a horizontal state, the paper boards falling through the supporting roller (e 14) fall on the two bearing plates (e 41), and when the bearing driving assembly (e 42) drives the two bearing plates (e 41) to oppositely overturn to be in a vertical state, the paper boards borne by the two bearing plates (e 41) drop downwards.