CN220299960U

CN220299960U - Turnover folding device of cloth piece folding machine

Info

Publication number: CN220299960U
Application number: CN202223601893.4U
Authority: CN
Inventors: 麦教枝; 梁平仙; 麦智叶
Original assignee: Zhongshan Yueyang Plastic Machinery Co ltd
Current assignee: Zhongshan Yueyang Plastic Machinery Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2024-01-05
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a turnover folding device of a cloth piece folding machine, which is characterized in that a cloth piece supporting conveyer belt assembly is sleeved and tightly sleeved between a left conveyer belt rotating shaft sleeving device and a right conveyer belt rotating shaft sleeving device, an upper layer belt assembly, a lower layer belt assembly and a middle layer space are formed, a hollow gap is formed between conveyer belts of the cloth piece supporting conveyer belt assembly, and a supporting platform, a cloth piece flat pressing plate device, a pressing plate lifting cylinder device, a cloth piece detection sensor and a first pressing strip turnover device with a first turnover pressing strip are arranged between middle sections of a front side rack and a rear side rack; the bearing platform is transversely arranged in the middle layer space; the outer side of the cloth flat pressing plate device is fixedly connected with a pressing plate lifting cylinder device; the automatic overturning and folding machine has the advantages that overturning and folding are automatically completed through the matching operation of the functional components, overturning and folding efficiency of the cloth sheet in a plurality of folding procedures is improved, manual compaction and trimming are avoided in the overturning and folding process, and unified standards such as size, folded positions (folds) and specifications are achieved.

Description

Turnover folding device of cloth piece folding machine

Technical Field

The utility model relates to a cloth piece folding device, in particular to a turnover folding device of a cloth piece folding machine.

Background

For example, 1: patent document publication No.: CN115417229a discloses a non-woven fabric folding machine, which comprises a frame body, a driving part, a transmission part and a folding part, wherein the driving part, the transmission part and the folding part are arranged in the frame body, and the frame body comprises a top plate; a notch is formed in the top plate; the folding parts and the notches are respectively provided with two, and the folding parts are rotationally connected with the top plate at the edge of the notch; the two driving parts are symmetrically arranged, and the two folding parts are driven to rotate through the transmission part; the top plate is provided with a fixed plate and a movable plate; the movable plate and the fixed plate are arranged between the two gaps; the movable plate is arranged in a rotating way relative to the top plate, and is overlapped with the upper surface of the fixed plate after rotating. Through the structure, the driving part is used for providing power, the transmission part is used for transmission, so that the folding part is folded, the non-woven fabrics laid on the top plate can be folded by the folding of the folding part, the non-woven fabrics folded by the folding part can be further folded by the arrangement of the fixed plate and the movable plate, the folded non-woven fabrics are placed on the fixed plate, square grooves are formed in the fixed plate, the non-woven fabrics are placed, after the non-woven fabrics are folded, a worker moves away the non-woven fabrics, and then a new non-woven fabrics is laid on the top plate, so that the folding effect is achieved; however, the structure needs to be manually matched to firstly lay the cloth, then control the automatic folding, and then manually remove the folded cloth, so that the cloth is folded in a semi-automatic operation manner, and the folding efficiency is low; because the cloth piece overturning and folding mechanical structures designed by each company are different, the overturning structure cannot be suitable for the conveyer belt overturning and folding machinery.

For example 2: after being cut by specified sizes, the existing household dining table top cloth and the existing household dining table top cloth are sewn and hemmed by a sewing machine at the edges of cloth pieces, then the volume and the area are reduced by manually overturning and folding one by one through a plurality of times, then packaging bags are filled in, and then the cloth pieces are delivered to market for sale; the manual folding speed is low, the production efficiency is low, the labor cost is high, and the manual folding machine always has the defects of untidy folding, non-uniform standard and the like.

For example 3: patent document publication No.: CN210854668U discloses a non-woven fabrics folder, which comprises a fixing table, the upper surface left side of fixed station is provided with first fixed plate, the spread groove has been seted up to the front side right-hand member level of first fixed plate, the rotation groove has all been seted up to the right side front end and the rear end of first fixed plate, spread groove and rotation groove intercommunication, the right side of first fixed plate is provided with the second fixed plate, the rotor is all installed to the left side front end and the rear end of second fixed plate, the connecting hole has been seted up at the front side middle part of rotor, the rotor runs through the rotation groove and is connected, the upper surface front side and the rear side of fixed station are provided with driving motor and aspiration pump respectively, driving motor's motor shaft is connected with the dwang, first fixed plate and second fixed plate pass through spread groove and connecting hole swing joint through the dwang, the intake pipe and the middle part intercommunication of pipe, the inside of first fixed plate and second fixed plate has all been horizontally seted up the air bleed groove, the left end and the right side of pipe and the inside of first fixed plate and second fixed plate have a plurality of air bleed holes to set up respectively. When the structure product is used, the non-woven fabrics are placed on the upper surfaces of the first fixing plate and the second fixing plate, the operation of the air pump is controlled, the non-woven fabrics on the upper surfaces of the first fixing plate and the second fixing plate can be sucked through the air suction holes, the first fixing plate and the second fixing plate are movably connected through the rotating rod penetrating through the connecting grooves and the connecting holes, the driving motor is controlled to operate, a motor shaft of the driving motor can drive the rotating rod to turn over the second fixing plate connected with the rotating rod, the non-woven fabrics on the upper surface of the second fixing plate are folded to the upper surface of the non-woven fabrics of the first fixing plate, the operation of the air pump is controlled to stop, the driving motor drives the second fixing plate to reset, and the structure product is convenient and quick; however, the structure needs to be manually matched to firstly lay the cloth, then control the automatic folding, and then manually remove the folded cloth, so that the cloth is folded in a semi-automatic operation manner, and the folding efficiency is low; because the cloth piece overturning and folding mechanical structures designed by each company are different, the overturning structure cannot be suitable for the conveyer belt overturning and folding machinery.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the overturning and folding device which is reasonable in structure, and is automatically completed by the cooperation of a controller, a motor transmission device, a left conveyor belt rotating shaft sleeving device, a right conveyor belt rotating shaft sleeving device, a cloth piece bearing conveyor belt assembly, a cloth piece flat pressing plate device, a pressing plate lifting cylinder device, a cloth piece detection sensor and a first pressing bar overturning device with a first overturning pressing bar.

The turnover folding device of the cloth piece folding machine comprises a controller, a front side frame, a rear side frame, a motor transmission device, a left conveyor belt rotating shaft sleeving device, a cloth piece bearing conveyor belt assembly and a right conveyor belt rotating shaft sleeving device, wherein the motor transmission device is connected with the left conveyor belt rotating shaft sleeving device, and the controller is connected with the motor transmission device through an electric wire; a cloth piece supporting conveyer belt assembly is sleeved and tightly sleeved between the left conveyer belt rotating shaft sleeve device and the right conveyer belt rotating shaft sleeve device, an upper layer belt assembly and a lower layer belt assembly are formed, a middle layer space is formed between the upper layer belt assembly and the lower layer belt assembly, a hollowed-out gap is formed between conveyer belts of the cloth piece supporting conveyer belt assembly, and a supporting platform, a cloth piece flat pressing plate device, a pressing plate lifting cylinder device, a cloth piece detection sensor and a first pressing bar turnover device with a first turnover pressing bar are arranged between middle sections of the front side frame and the rear side frame; at least two first overturning pressing strips are arranged; the width of the first overturning pressing strip is smaller than the width of the hollowed-out gap; the bearing platform is positioned at the middle section of the cloth piece bearing conveyor belt assembly, transversely arranged in the middle layer space, and fixedly connected with the corresponding front side frame and rear side frame wall bodies at the front and rear ends, and the top surface of the bearing platform is close to the back surface of the upper layer belt assembly; the outer side of the cloth piece flat pressing plate device is fixedly connected with the top of the pressing plate lifting cylinder device, and the pressing plate lifting cylinder device is used for driving the cloth piece flat pressing plate device to lift, transversely and forwards prop open and fold; the flat cloth piece pressing plate device is arranged above the middle section of the upper layer belt assembly and vertically corresponds to the bearing platform; after the pressing plate lifting cylinder device drives the cloth piece flat pressing plate device to lift, the cloth piece can be conveyed from the top of the upper layer belt assembly; after the pressing plate lifting cylinder device drives the cloth piece flat pressing plate device to descend, the cloth piece is clamped between the supporting platform and the cloth piece flat pressing plate device to wait for folding; the cloth piece detection sensor is positioned behind the supporting platform and the cloth piece flat pressing plate device and is used for detecting whether the cloth piece stack reaches a specified position or not; the cloth detection sensor is connected with the controller through a data line; the work of the pressing plate lifting cylinder device and the first pressing bar overturning device is controlled by a controller; the first pressing strip overturning device is close to the bearing platform, the first overturning pressing strips and the first pressing strip overturning device transversely penetrate through the middle layer space, the first overturning pressing strips and the cloth piece bearing conveyor belt assembly are arranged in the same direction, each first overturning pressing strip corresponds to the hollow gaps of different rows vertically and centrally, the first pressing strip overturning device is used for driving the first overturning pressing strips to overturn from bottom to top through the hollow gaps so as to fold the overturning cloth piece, and the hollow gaps provide overturning space for the first overturning pressing strips.

The overturning and folding device of the cloth piece folding machine has the beneficial effects that: the product is by controller, motor drive, left conveyer belt pivot sleeve device, right conveyer belt pivot sleeve device, cloth piece bearing conveyer belt subassembly, cloth piece flat pressing plate device, clamp plate lift cylinder device, cloth piece detection sensor, the first layering turning device cooperation operation automatic completion of taking first upset layering improves cloth piece and folds efficiency at least upset in the multichannel folding procedure, and this upset folding process avoids artifical compaction and arrangement to be leveled, and whole process reduces the cost of labor, unified standard such as position (crease), the specification of size, book, and each process is unified.

Drawings

FIGS. 1, 2 and 3 are perspective views of a cloth piece folding machine for products of the utility model;

FIG. 4 is a perspective view of the structure of the product of the utility model in which the folding device is inserted into the lower part of the product in a matched manner and is connected with the turnover folding device;

fig. 5, 6, 7, 8, 9, 10, 11 and 12 are perspective views of the product turning and folding device according to the present utility model;

FIG. 13 is a perspective view of the product support platform of the present utility model;

FIG. 14 is a perspective view of the structure of the product cloth flat pressing device of the utility model;

FIGS. 15 and 16 are schematic views of a sheet stack of the product of the present utility model being transferred from an upper belt assembly;

FIG. 17 is a schematic diagram of four cloth piece deviation correcting cylinders and deviation correcting push plates pushing the cloth piece stack to center and correct deviation after the cloth piece stack of the product of the utility model reaches the designated position of the cloth piece detection sensor;

FIG. 18 is a schematic illustration of a product of the present utility model in which a stack of sheets is flattened by a sheet flat press device and a first roll-over bar is driven by a first bar roll-over device to roll over and fold;

FIG. 19 is a schematic view of a product of the present utility model with a first roll-over bead roll-over fold to form an upper fabric ply and a lower fabric ply;

FIG. 20 is a schematic view of the product of the present utility model showing the front auxiliary presser bar and the rear auxiliary presser bar positioned further than the upper cloth piece stack to press the lower cloth piece stack, and the second turning presser bar being driven by the second presser bar turning device to turn over and fold;

FIG. 21 is a schematic view of a product of the present utility model with a second roll-over bead of a sheet stack being again roll-over folded;

FIG. 22 is a schematic view of a stack of sheets of the product of the present utility model being depressed by a stack collapsing evacuation device;

FIG. 23 is a schematic view of a product of the present utility model having a stack of sheets transferred beneath a stack compression device;

FIG. 24 is a schematic view of a stack of sheets of the product of the present utility model being depressed by a stack compression device;

FIG. 25 is a disassembled view of the product sheet stack compression device of the present utility model;

FIG. 26 is a perspective view of a product stack collapse and empty apparatus of the present utility model;

FIG. 27 is a perspective view showing the connection of the first bead turning device, the second bead turning device and the turning shaft spacing adjusting device of the product of the present utility model;

FIG. 28 is a perspective view of the connection structure of the product overhead cylinder, the cloth flat pressing plate device and the pressing plate lifting cylinder device;

fig. 29 and 30 are perspective views of connection structures of a first pressing strip turning device, a second pressing strip turning device, a turning shaft distance adjusting device, an overhead cylinder, a cloth flat pressing plate device and a pressing plate lifting cylinder device of the product;

FIG. 31 is a schematic diagram of the connection structure of the sheet deviation rectifying cylinder, the deviation rectifying push plate and the deviation rectifying air source control valve of the product of the utility model.

Folding device 1, controller A, front side frame B, rear side frame C, motor transmission D, driving motor D1, motor gear D2, motor transmission D3, rotating shaft gear D4, left transmission belt rotating shaft sleeve device E, left front bearing seat E1, left transmission belt rotating shaft E2, left rear bearing seat E3, right transmission belt rotating shaft sleeve device G, right front bearing seat G1, right transmission belt rotating shaft G2, right rear bearing seat G3, supporting platform H, upper top plate H1, top plate seat frame H2, pressing plate lifting cylinder device J, cylinder bottom frame J1, pressing plate lifting cylinder J2, pressing plate cylinder air source valve J3, public lifting cross beam J4, front transverse telescopic cylinder J5, front lifting vertical frame J6, rear transverse telescopic cylinder J7, rear lifting vertical frame J8, cross beam cylinder air source control valve J9, cloth piece detection sensor K, light sensing emitter K1, light sensing reflector K2, right side frame S the device comprises a threading hole S1, a left front cloth piece deviation correcting cylinder T, a left front deviation correcting push plate T1, a right front cloth piece deviation correcting cylinder U, a right front deviation correcting push plate U1, a left rear cloth piece deviation correcting cylinder V, a left rear deviation correcting push plate V1, a right rear cloth piece deviation correcting cylinder W, a right rear deviation correcting push plate W1, a deviation correcting air source control valve X, a front top cylinder bracket N, a front top cylinder N1, a front auxiliary compression rod N2, a rear top cylinder bracket O, a rear top cylinder O1, a top cylinder valve NO, a rear auxiliary compression rod O2, a cloth piece flat pressing plate device I, a front flat pressing plate I1, a rear flat pressing plate I2, a cloth piece supporting and conveying belt assembly F, an upper layer belt assembly F1, a middle layer space F2, a lower layer belt assembly F3, a hollowed-out gap F4, a first pressing strip overturning device L, a first overturning pressing strip L1, a first front rotating shaft supporting seat L2, a first overturning shaft L3, a first rotating shaft gear L4, a first rack device L5, a first overturning cylinder L6, the first rear rotating shaft supporting seat L7, the first cylinder air source control valve L8, the first front limiting anti-slip ring L31, the first rear limiting anti-slip ring L32, the first rack seat L51, the first transverse rack L52, the second pressing strip overturning device M, the second overturning pressing strip M1, the second front rotating shaft supporting seat M2, the second overturning rotating shaft M3, the second rotating shaft gear M4, the second rack device M5, the second overturning cylinder M6, the second rear rotating shaft supporting seat M7, the second cylinder air source control valve M8, the second front limiting anti-slip ring M31, the second rear limiting anti-slip ring M32, the second rack seat M51, the second transverse rack M52, the overturning shaft interval adjusting device P, the interval adjusting hand wheel P1, the main interval rotation adjusting shaft P2, the main shaft front conical gear P3, the main shaft front shaft seat P4, the front cylinder interval adjusting threaded rod P5, the front left conical gear P6, the front left bearing seat P7, the front right bearing seat P8, the front positioning sliding device P9 spindle rear conical gear P10, spindle rear shaft seat P11, rear cylinder pitch adjusting threaded rod P12, rear left conical gear P13, rear left bearing seat P14, rear right bearing seat P15, rear positioning sliding device P16, cloth folding flattening and evacuating device Q, cloth folding plate frame Q1, lever frame Q2, lever foundation shaft Q3, longitudinal lifting cylinder Q4, longitudinal cylinder air source control valve Q5, cloth sheet folding compression device R, front side wall plate frame R1, rear side wall plate frame R2, bearing flat plate device R3, cylinder portal frame R4, cloth folding compression cylinder R5, cloth folding compression plate R6, cloth sheet detecting signal sensor R7, upper half signal emitter R71, lower half signal reflector R72, compression cylinder air source control valve R8, cloth sheet detecting signal positioning hole R9, compression plate positioning rod R10, upper signal emitting through hole R11, lower signal emitting through hole R12, evacuating air hole R13, front wall plate seat R31, rear wall plate seat R32, top support plate R33.

Detailed Description

The turning and folding device of the cloth piece folding machine is used for folding four folded cloth pieces by the front four folding devices of the cloth piece folding machine; the upper procedure of the turnover folding device is that the folding device is folded down, the folded cloth piece is folded by the folding device 1 and falls into the turnover folding device to continue the folding work of the fifth and sixth folds; the overturning and folding device works circularly; the turnover folding device is a folding device for the fifth fold and the sixth fold of the cloth piece; the turnover folding device comprises a controller A (control system), a front side rack B, a rear side rack C, a motor transmission device D, a left conveyor belt rotating shaft sleeving device E, a right conveyor belt rotating shaft sleeving device G and a cloth supporting conveyor belt assembly F; the cloth piece supporting conveyer belt component F has a certain reset elastic property; the controller A is connected with the motor transmission device D through an electric wire; the front side frame B and the rear side frame C are made of iron metal plates and are plate body brackets; the distance between the left conveyor belt rotating shaft sleeving device E and the right conveyor belt rotating shaft sleeving device G is 1.6-2.6 meters, namely: the top length of the cloth piece supporting conveyer belt assembly F is 1.6-2.6 meters, and the length is set according to the actual situation according to the requirement of the folded size (specification) of the cloth piece stack; the width of the cloth supporting belt assembly F is 30 cm-65 cm, generally 40 cm-50 cm, and the optimal width is determined according to the width of the folded cloth piece stack; the left conveyor belt rotating shaft sleeving device E, the right conveyor belt rotating shaft sleeving device G and the cloth piece supporting conveyor belt assembly F are preferably arranged horizontally, so that the cloth piece stack can be smoothly conveyed; of course, the inclination from the left end to the right end can be slightly inclined; the surface of the cloth piece supporting conveyor belt component F is rough, a good friction force is formed between the cloth piece supporting conveyor belt component F and the cloth piece stack, and the cloth piece stack cannot naturally slide;

The motor transmission device D is connected with the left conveyor belt rotating shaft sleeving device E, the left conveyor belt rotating shaft sleeving device E is sleeved with the right conveyor belt rotating shaft sleeving device G, a cloth piece supporting conveyor belt assembly F is sleeved between the left conveyor belt rotating shaft sleeving device E and the right conveyor belt rotating shaft sleeving device G, an upper layer belt assembly F1 and a lower layer belt assembly F3 are formed, a middle layer space F2 (the middle layer space F2 is a hollow space) is formed between the upper layer belt assembly F1 and the lower layer belt assembly F3, a hollowed-out gap F4 is formed between the upper layer belt assembly F1 and the lower layer belt assembly F3 (namely, the hollowed-out gap F4 is vertical), the hollowed-out gap F4 is 4 cm-6 cm in width, the cloth piece supporting conveyor belt assembly F is composed of a plurality of cloth piece supporting conveyor belts, preferably, the cloth piece supporting conveyor belt assembly F is composed of 5-8 cloth piece supporting conveyor belts, the width of the cloth piece supporting conveyor belts is 3 cm-5 cm, and the cloth piece supporting conveyor belts are made of rubber materials or soft fabrics or soft rubber materials or composite materials or PVC (polyvinyl chloride) are manufactured;

the main technical improvement of the product is as follows: a supporting platform H, a cloth flat pressing plate device I, a pressing plate lifting cylinder device J, a cloth detection sensor K and a first pressing bar overturning device L with a first overturning pressing bar L1 are arranged between the front side frame B and the rear side frame C; at least two first overturning pressing strips L1 are arranged, and the number of the first overturning pressing strips L1 is preferably three to four; the width of the first overturning pressing strip L1 is smaller than the width of the hollowed-out gap F4; the bearing platform H is made of iron metal, has a flat top surface and is preferably horizontally arranged; the supporting platform H is rectangular, the length of the supporting platform H is 30 cm-65 cm, the width of the supporting platform H is 30 cm-50 cm, and the length of the supporting platform H is slightly smaller than, equal to or slightly larger than the width of the cloth piece supporting conveyor belt assembly F; the first overturning layering L1 is a metal lath;

The bearing platform H is positioned at the middle section of the cloth piece bearing conveyor belt assembly F, transversely arranged in the middle layer space F2, and fixedly connected with the corresponding front side rack B and the corresponding rear side rack C by screws at the front end and the rear end of the bearing platform H, and the top surface of the bearing platform H is close to the back surface of the upper layer belt assembly F1; the bearing platform H is fixed; a space of 2 cm-4 cm is reserved between the supporting platform H and the back surface of the upper belt assembly F1, and in a normal state, the supporting platform H is not contacted with the upper belt assembly F1, so that the rotation work of the upper belt assembly F1 is not influenced; the circumferential shape and the size of the cloth flat pressing plate device I are basically the same as those of the bearing platform H; the left and right edges of the supporting platform H and the cloth piece flat pressing plate device I are straight, and the straight edges can be obviously straight boundary folds when the cloth piece is turned and folded;

the outer side of the cloth piece flat pressing plate device I is fixedly connected with the top of the pressing plate lifting cylinder device J, and the pressing plate lifting cylinder device J is used for driving the cloth piece flat pressing plate device I to lift, transversely and forwards prop open and fold; the pressing plate lifting cylinder device J is connected between the front side frame B and the rear side frame C; the cloth flat pressing plate device I is arranged above the middle section of the upper layer belt assembly F1 and vertically corresponds to the bearing platform H; in a normal state, after the pressing plate lifting cylinder device J drives the cloth piece flat pressing plate device I to lift, a space for conveying the cloth piece stack is formed between the upper layer belt assembly F1 and the cloth piece flat pressing plate device I, normal conveying of the cloth piece stack is not hindered, the space height between the upper layer belt assembly F1 and the cloth piece flat pressing plate device I is 5 cm-10 cm, and the cloth piece stack can be conveyed from the top of the upper layer belt assembly F1; after the pressing plate lifting cylinder device J drives the cloth piece flat pressing plate device I to descend, the cloth piece is clamped between the supporting platform H and the cloth piece flat pressing plate device I to wait for folding; the cloth piece detection sensor K is positioned behind the supporting platform H and the cloth piece flat pressing plate device I and is used for detecting whether the cloth piece stack reaches a specified position or not; the cloth detection sensor K is connected with the controller A through a data line;

The first layering turning device L is close to the bearing platform H, the first overturning layering L1 and the first layering turning device L transversely penetrate through the middle layer space F2, the first overturning layering L1 and the cloth piece bearing conveyor belt assembly F are arranged in the same direction, and therefore the first overturning layering L1 can be turned from bottom to top, and the overturning degree of the first overturning layering L1 is as follows: each first overturning pressing strip L1 is vertically centered and corresponds to the hollowed-out gaps F4 of different columns at 0-200 degrees, and as the cloth piece stack is wide and flat and needs to be supported at different positions and overturned again, the whole cloth piece stack cannot fall off softly (soft drop), and therefore the first overturning pressing strips L1 are vertically arranged on the hollowed-out gaps F4 of different columns; the first pressing strip overturning device L is used for driving the first overturning pressing strip L1 to overturn from bottom to top through a hollowed-out gap F4 to fold the overturning cloth piece, and the hollowed-out gap F4 provides an overturning space for the first overturning pressing strip L1; the diameter or width of the first overturning pressing strip L1 is smaller than the width of the hollowed-out gap F4; the length of the first overturning layering L1 is equal to or slightly smaller than the width of the supporting platform H; the work of the pressing plate lifting cylinder device J and the first pressing bar overturning device L is controlled by the controller A (the pressing plate lifting cylinder device J and the first pressing bar overturning device L are connected with the controller A through wires and the work of the pressing plate lifting cylinder device J and the first pressing bar overturning device L is controlled by the controller A); the cloth piece stack means that at least two layers of cloth pieces are stacked together;

The working process comprises the following steps: the controller A firstly controls the motor transmission device D to start rotating work, the motor transmission device D drives the left conveyor belt rotating shaft sleeving device E to rotate, the cloth piece supporting conveyor belt assembly F rotates along with the left conveyor belt rotating shaft sleeving device E, the right conveyor belt rotating shaft sleeving device G rotates along with the right conveyor belt rotating shaft sleeving device G, and therefore the cloth piece supporting conveyor belt assembly F rotates from left to right; the cloth detecting sensor K continuously feeds back signals to the controller A; the cloth piece is folded by the folding lower inserting folding device in the upper layer of the turnover folding device, and falls on the top of the upper layer belt assembly F1 on the left side of the turnover folding device after being folded by the folding lower inserting folding device, the cloth piece bearing conveyor belt assembly F rotates from left to right, so that the cloth piece stack is conveyed from left to right, and passes through the bearing platform H and the cloth piece flat pressing device I, when the cloth piece stack is conveyed, a feedback signal is sent to the controller A after the front end of the cloth piece stack is captured by the cloth piece detection sensor K, and is regarded as the cloth piece stack to be conveyed to a designated position, then the controller A controls the motor transmission device D to stop rotating, the left conveyor belt rotating sleeve device E, the right conveyor belt rotating sleeve device G and the cloth piece bearing conveyor belt assembly F stop rotating, the cloth piece stack stops conveying, and the middle section of the cloth piece stack just stays between the bearing platform H and the cloth piece flat pressing device I; then the controller A controls the pressing plate lifting cylinder device J to carry out descending work, the pressing plate lifting cylinder device J pulls the cloth piece flat pressing plate device I to descend, the cloth piece flat pressing plate device I presses down from the top of the cloth piece stack, then the cloth piece stack is clamped between the supporting platform H and the cloth piece flat pressing plate device I, the flattening and flattening cloth cover is flattened, the upper layer belt component F1 is also clamped and pressed together, the clamping force is 2 kg-4 kg, and the pressing and the folding waiting are carried out; then, the controller A controls the first pressing strip overturning device L to work and overturn in a positive rotation way, the first overturning pressing strip L1 of the controller A overturns from bottom to top through the hollowed-out gap F4, the first overturning pressing strip L1 supports the cloth piece stack from the bottom of the cloth piece and rapidly overturns (overturns) the cloth piece stack, the cloth piece stack is turned over based on the edge pressing edge of the cloth piece flat pressing plate device I, the cloth piece stack can be turned over to the top of the cloth piece flat pressing plate device I, a certain pressure is applied to overturn the cloth piece stack to be flat, then the folding of the cloth piece stack is completed, an upper cloth piece stack and a lower cloth piece stack are formed, and the cloth piece flat pressing plate device I is clamped between the upper cloth piece stack and the lower cloth piece stack, namely: the cloth flat pressing plate device I is overlapped by the upper cloth; the first overturning layering L1 temporarily presses the cloth sheet stack, and then the controller A controls the next folding procedure; the first pressing strip overturning device L determines an overturning angle through an overturning stroke of the first pressing strip overturning device L; the folding work is automatically completed, and the time from the detection of the cloth piece to the completion of the folding is as follows: 3-5 seconds; the folding process is free from manual compaction and leveling, and is automatically completed by matching with the set program operation, wherein the controller A, the motor transmission device D, the left conveyor belt rotating shaft sleeve device E, the right conveyor belt rotating shaft sleeve device G, the cloth piece supporting conveyor belt assembly F, the cloth piece flat pressing plate device I, the pressing plate lifting cylinder device J, the cloth piece detection sensor K and the first pressing bar turnover device L with the first turnover pressing bar L1; each process is unified.

Further: the front outer side and the rear outer side of the left section and the right section of the upper layer belt component F1 are provided with cloth piece deviation correcting devices; the cloth piece deviation correcting device comprises a left front cloth piece deviation correcting cylinder T, a left front deviation correcting push plate T1, a left rear cloth piece deviation correcting cylinder V, a left rear deviation correcting push plate V1, a right front cloth piece deviation correcting cylinder U, a right front deviation correcting push plate U1, a right rear cloth piece deviation correcting cylinder W, a right rear deviation correcting push plate W1 and a deviation correcting air source control valve X;

the left front outer side of the left section of the upper layer belt component F1 is provided with a left front cloth piece deviation correcting cylinder T, a left front deviation correcting push plate T1 is fixed at the telescopic rod end of the left front cloth piece deviation correcting cylinder T, and the bottom edge of the left front deviation correcting push plate T1 is slightly higher than the upper layer belt component F1 and is not contacted with the upper layer belt component F1; the front outer side of the right section of the upper layer belt assembly F1 is provided with a right front cloth piece deviation correcting cylinder U, the telescopic rod end of the right front cloth piece deviation correcting cylinder U is fixedly provided with a right front deviation correcting push plate U1, and the bottom edge of the right front deviation correcting push plate U1 is slightly higher than the upper layer belt assembly F1 and is not contacted with the upper layer belt assembly F1; the left front cloth piece deviation correcting cylinder T and the right front cloth piece deviation correcting cylinder U are fixed on the front side frame B through connecting brackets and screws;

the left rear cloth piece deviation correcting cylinder V is arranged on the rear outer side of the left section of the upper layer belt assembly F1, a left rear deviation correcting push plate V1 is fixed on the telescopic rod end of the left rear cloth piece deviation correcting cylinder V, and the bottom edge of the left rear deviation correcting push plate V1 is slightly higher than the upper layer belt assembly F1 and is not in contact with the upper layer belt assembly F1; a right rear cloth piece deviation correcting cylinder W is arranged on the rear outer side of the right section of the upper layer belt assembly F1, a right rear deviation correcting push plate W1 is fixed on the telescopic rod end of the right rear cloth piece deviation correcting cylinder W, and the bottom edge of the right rear deviation correcting push plate W1 is slightly higher than the upper layer belt assembly F1 and is not contacted with the upper layer belt assembly F1; the left rear cloth piece deviation correcting cylinder V and the right rear cloth piece deviation correcting cylinder W are fixed on the rear side frame C through connecting brackets and screws; the left front cloth piece deviation correcting cylinder T and the right front cloth piece deviation correcting cylinder U are oppositely arranged at equal heights; the left rear cloth piece deviation correcting cylinder V and the right rear cloth piece deviation correcting cylinder W are oppositely arranged at equal heights;

The left front cloth piece deviation correcting cylinder T, the right front cloth piece deviation correcting cylinder U, the left rear cloth piece deviation correcting cylinder V and the right rear cloth piece deviation correcting cylinder W are connected with the same deviation correcting air source control valve X through air pipes, and the deviation correcting air source control valve X is connected with the controller A through electric wires; the deviation rectifying air source control valve X is an electromagnetic valve. The air sources of the left front cloth piece deviation correcting cylinder T, the right front cloth piece deviation correcting cylinder U, the left rear cloth piece deviation correcting cylinder V and the right rear cloth piece deviation correcting cylinder W are connected with an own air source pipe network of a factory through a deviation correcting air source control valve X to obtain blowing air pressure and air suction air pressure.

The stack of cloth sheets falling on top of the upper belt assembly F1 may sometimes have some deviation, but the deviation amplitude is small and not straight enough, so that deviation correction is required; in order to ensure that the cloth piece stack falling on the top of the upper layer belt assembly F1 is not deviated before, after and left and right of the cloth piece stack and is more straight and tidier after being folded after being conveyed to a designated position, the cloth piece deviation correcting device is arranged; when in use, the utility model is characterized in that: when the cloth piece pre-stack head is captured and detected by a cloth piece detection sensor K, a feedback signal is sent to a controller A, the cloth piece stack is regarded as being conveyed to a designated position, then the controller A controls a blowing valve of a deviation correcting air source control valve X to be opened, a suction valve is closed, a left front cloth piece deviation correcting cylinder T, a right front cloth piece deviation correcting cylinder U, a left rear cloth piece deviation correcting cylinder V and a right rear cloth piece deviation correcting cylinder W synchronously enter air pressure, telescopic rods of the left front cloth piece deviation correcting cylinder T, the right front cloth piece deviation correcting cylinder U, the left rear cloth piece deviation correcting cylinder V and the right rear cloth piece deviation correcting cylinder W synchronously extend out, a left front deviation correcting push plate T1 and a left rear deviation correcting push plate V1 synchronously push into an upper layer belt assembly F1, a distance between the left front deviation correcting push plate T1 and the left rear deviation correcting push plate V1 is shortened, and the left section of the cloth piece stack is pushed to be centered in the middle of the upper layer belt assembly F1; the front right deviation correcting push plate U1 and the rear right deviation correcting push plate W1 are synchronously pushed into the upper layer belt assembly F1, the distance between the opposite directions of the front right deviation correcting push plate U1 and the rear right deviation correcting push plate W1 is reduced, and the right cloth piece stack section is pushed to be centered in the middle of the upper layer belt assembly F1; thus, the rectangular cloth piece stack is pushed in; therefore, the cloth sheets are not inclined to the left and right before and after folding, the cloth sheets are more straight, and the folded cloth sheets are more neat and cannot deviate; the correction time is as follows: 1-2 seconds; after pushing, the controller A controls the blowing valve of the deviation-correcting air source control valve X to be closed, the air suction valve is opened, the left front cloth deviation correcting cylinder T, the right front cloth deviation correcting cylinder U, the left rear cloth deviation correcting cylinder V and the telescopic rods of the right rear cloth deviation correcting cylinder W are sucked and contracted inwards, and the corresponding left front deviation correcting push plate T1, right front deviation correcting push plate U1, left rear deviation correcting push plate V1 and right rear deviation correcting push plate W1 are withdrawn from the side edges of the cloth supporting conveyor belt assembly F; the controller a then controls the next procedure. Because the cloth piece is folded by the four folding devices in the front four folding devices of the cloth piece folding machine, and six layers of cloth pieces are folded, and the cloth piece has certain thickness and hardness, the cloth piece can be pushed by the deviation correcting cylinder to be displaced and corrected.

Further: a second pressing strip overturning device M with a second overturning pressing strip M1 is arranged between the front side rack B and the rear side rack C; at least two second overturning pressing strips M1 are arranged, and the number of the second overturning pressing strips M1 is preferably three to four; the width of the second overturning pressing strip M1 is smaller than that of the hollowed-out gap F4; the second overturning layering M1 is a metal lath;

the cloth flat pressing plate device I comprises a front flat pressing plate I1 and a rear flat pressing plate I2, wherein the front flat pressing plate I1 and the rear flat pressing plate I2 are arranged in a front-back equal-height symmetrical and opposite manner; the front flat pressing plate I1 and the rear flat pressing plate I2 have the same length, width and shape, and the lengths of the front flat pressing plate I1 and the rear flat pressing plate I2 are equal to or slightly larger than the width of half of the cloth supporting conveyor belt assembly F; the left and right plate edges of the front flat pressing plate I1 and the rear flat pressing plate I2 are straight; the top surfaces of the front flat pressing plate I1, the rear flat pressing plate I2 and the bearing platform H (the upper top plate H1) are arranged horizontally, and are preferably arranged horizontally, so that the compacting and pasting effects are better; the outer sides of the front flat pressing plate I1 and the rear flat pressing plate I2 are fixedly connected with the top of a pressing plate lifting cylinder device J, and the pressing plate lifting cylinder device J is used for driving the front flat pressing plate I1 and the rear flat pressing plate I2 to synchronously lift, transversely and forwards and backwards prop open and fold; the front flat pressing plate I1 and the rear flat pressing plate I2 may be made of one plate or two plates.

The top of the outer side edges of the front flat pressing plate I1 and the rear flat pressing plate I2 are fixedly connected with a front top cylinder support N and a rear top cylinder support O which correspond to each other through screws, the front top cylinder support N and the rear top cylinder support O are fixedly connected with a front top cylinder N1 and a rear top cylinder O1 which are correspondingly arranged obliquely downwards right, the front top cylinder N1 and the rear top cylinder O1 are connected with a top cylinder control valve NO through air pipes, the top cylinder control valve NO is connected with a controller A through wires, and telescopic rod ends corresponding to the front top cylinder N1 and the rear top cylinder O1 are transversely fixedly connected with a front auxiliary compression rod N2 and a rear auxiliary compression rod O2 through screws; the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are symmetrically arranged in the same height and opposite to each other, and the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are positioned above the right side edges of the corresponding front flat pressing plate I1 and rear flat pressing plate I2; the overhead cylinder control valve NO is an electromagnetic valve;

the first pressing strip overturning device L is positioned near the left side of the supporting platform H, and the second pressing strip overturning device M is positioned near the right side of the supporting platform H; the second overturning pressing strips M1 and the second pressing strip overturning device M transversely penetrate through the middle layer space F2, the second overturning pressing strips M1 and the cloth piece supporting and conveying belt assembly F are arranged in the same direction, each second overturning pressing strip M1 corresponds to the hollow gaps F4 in different columns in a centering mode, the second pressing strip overturning device M is used for driving the second overturning pressing strips M1 to overturn from bottom to top through the hollow gaps F4 to fold the overturning cloth pieces, and the hollow gaps F4 provide overturning spaces for the second overturning pressing strips M1;

The first pressing strip overturning device L drives the first overturning pressing strip L1 to overturn clockwise, the second pressing strip overturning device M drives the second overturning pressing strip M1 to overturn anticlockwise, and the second overturning pressing strip M1 is matched with the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 for use, so that left and right side overturning folding cloth clamping sheet stack is realized; the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are shorter than the lengths of the corresponding front flat pressing plate I1 and rear flat pressing plate I2, and are preferably: the length of the front auxiliary pressing rod N2 is 30-50% of the length of the front flat pressing plate I1, and the length of the rear auxiliary pressing rod O2 is 30-50% of the length of the rear flat pressing plate I2; the air sources of the front overhead air cylinder N1 and the rear overhead air cylinder O1 are connected with the factory through an overhead air cylinder control valve NO to obtain the blowing air pressure and the suction air pressure from an air source pipe network. The front auxiliary compression bar N2 and the rear auxiliary compression bar O2 are used as folding positioning bars of the second pressing bar overturning device M;

when in work, the working procedure of the first pressing bar overturning device L is connected to continue working; when the first overturning pressing strip L1 presses the cloth piece stack to be motionless (the first overturning pressing strip L1 is driven by the first overturning pressing strip overturning device L to overturn clockwise to press the cloth piece stack to be motionless), the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are clamped by the upper cloth piece stack and the lower cloth piece stack which are folded up, then the controller a can control the air blowing valve of the overhead cylinder control valve NO to be opened and the air suction valve to be closed, the telescopic rods of the front overhead cylinder N1 and the rear overhead cylinder O1 are rapidly stretched out, the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are firstly pushed downwards, then the controller a can control the air blowing valve of the overhead cylinder control valve NO to be closed and the air suction valve to be opened, the telescopic rods of the front overhead cylinder N1 and the rear overhead cylinder O1 are rapidly retracted, the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are rapidly lifted up, and the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are rapidly and upwardly and reversely arranged on the upper top of the upper cloth piece stack (namely: because the cloth piece stack has certain flexibility (softness), the front auxiliary compression rod N2 and the rear auxiliary compression rod O2 are short in length and are positioned at the outer side edge of the cloth piece stack, when the front auxiliary compression rod N2 and the rear auxiliary compression rod O2 move upwards rapidly, the front auxiliary compression rod N2 and the rear auxiliary compression rod O2 can slide rapidly through the outer side edge of the cloth piece stack to reset to the upper top of the upper cloth piece stack to press the upper cloth piece stack, and the front auxiliary compression rod N2 and the rear auxiliary compression rod O2 temporarily press the upper cloth piece stack, so that the working time is 1-2 seconds;

Then, the controller A controls the first pressing strip overturning device L to work and overturn reversely, so that the first overturning pressing strip L1 returns to the middle layer space F2 for resetting and resetting is completed, and the pressing cloth sheet stack is separated;

then, the controller a controls the second press bar turnover device M to perform forward rotation turnover, the second turnover press bar M1 of the controller a turnover device passes through the hollowed-out gap F4 from bottom to top, the second turnover press bar M1 supports the cloth piece stack from the bottom of the cloth piece and rapidly turns over (turns over) the cloth piece stack, the lower cloth piece stack turns over based on the edge pressing edge of the cloth piece flat pressing plate device I, the upper cloth piece stack forms turnover based on the front auxiliary press bar N2 and the rear auxiliary press bar O2, the second turnover press bar M1 synchronously turns over the upper cloth piece stack and the lower cloth piece stack, the first turnover press bar L1 turns over clockwise and folds, the second turnover press bar M1 turns over anticlockwise and folds anticlockwise, the cloth piece stack can be turned over again to the top of the front flat press plate I1 and the rear flat press plate I2, a certain pressure is applied to turn over and press the cloth piece stack flatly, natural rebound of the cloth piece stack is prevented, then the cloth piece stack of the second turnover press device M is completed, thus the folding press is shortened, the original cloth piece stack is shortened, and the length of the original strip can be reduced by 70% -75% after the two folds are folded, for example: the length of the original cloth sheet stack is 1 meter, and after the two times of overturning and folding, the length of the original cloth sheet stack is changed into 25 cm-30 cm;

Then, the controller A controls the second pressing bar overturning device M to work and overturn reversely, so that the second overturning pressing bar M1 returns to the middle layer space F2 to reset and complete resetting, and the second overturning pressing bar is separated from the compressed cloth sheet stack;

then, the controller A controls the pressing plate lifting cylinder device J to carry out a release operation, the pressing plate lifting cylinder device J transversely supports the front flat pressing plate I1 and the rear flat pressing plate I2, the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are synchronously supported, the front flat pressing plate I1, the rear flat pressing plate I2, the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are withdrawn (released) from the folded cloth piece stack, the front flat pressing plate I1 and the front auxiliary pressing rod N2 are transversely withdrawn (released) from the front side, the rear flat pressing plate I2 and the rear auxiliary pressing rod O2 are transversely withdrawn (released) from the rear side, and the front flat pressing plate I1, the rear flat pressing plate I2, the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are no longer contacted with the cloth piece stack;

the second pressing strip overturning device M is matched with the front top cylinder support N and the rear top cylinder support O, overturning and folding of the lower cloth piece stack and the upper cloth piece stack can be completed simultaneously, after folding, the folding is finished automatically, the whole process is completed mechanically, the cost is low, the folding is quick and efficient, the folded size, the folded position (crease) and the folded specification of the cloth piece stack are uniform, and the folded back is regular;

The controller a then controls the next program operation.

Further: a cloth stack flattening and emptying device Q which is lifted up and down is arranged above the cloth stack flat pressing plate device I, and after the cloth is turned over and folded, the cloth stack is pressed down by the cloth stack flattening and emptying device Q to be emptied and flattened, so that the cloth stack is prevented from rebounding and loosening due to excessive thickness; the cloth stack flattening and emptying device Q is arranged between the front side frame B and the rear side frame C and is positioned above the upper layer belt assembly F1;

the cloth folding flattening and emptying device Q comprises a cloth folding plate frame Q1, a lever frame Q2, a lever foundation shaft Q3, a longitudinal lifting cylinder Q4 and a longitudinal cylinder air source control valve Q5, wherein the longitudinal cylinder air source control valve Q5 is an electromagnetic valve, the longitudinal lifting cylinder Q4 is connected with the longitudinal cylinder air source control valve Q5 through an air pipe, the longitudinal cylinder air source control valve Q5 is connected with a controller A through an electric wire, the top of the cloth folding plate frame Q1 is movably connected with the tail end of the lever frame Q2 (namely, two through shaft holes are formed at the top of the cloth folding plate frame Q1, a round transverse shaft rod is welded and fixed at the tail end of the lever frame Q2, the middle and rear sections of the transverse shaft rod just can transversely penetrate through the two through shaft holes to limit and form movable connection), the middle and rear sections of the lever foundation shaft Q3 of the lever frame Q2 are movably penetrated through the lever foundation shaft Q3 (namely, the middle and rear sections of the lever foundation shaft Q2 are movably penetrated through the transverse shaft holes to form movable connection, the foundation shaft Q3 at the two outer sides of the transverse shaft holes are clamped and fixed with positioning shafts, the positioning shafts are used for preventing the front and rear shafts of the lever frame Q2 from moving, and the front and rear shafts Q4 are movably connected with the front and rear shafts of the front and rear shafts Q4 are movably connected with the front and rear shafts of the front and rear frames Q2; the vertical lifting cylinder Q4 pushes and pulls one end of the lever frame Q2 to lift through the telescopic rod of the vertical lifting cylinder Q4, so that the other end of the lever frame Q2 is lifted, the cloth folding plate frame Q1 is lifted along with the lifting of the tail end of the lever frame Q2, and the cloth folding plate frame Q1 is lowered to be folded and emptied by pressing the cloth piece stack tightly. Normally, the cloth folding pressing plate frame Q1 is lifted; the right ends of the front side rack B and the rear side rack C are fixedly connected with a right side rack S, and a longitudinal lifting cylinder Q4 is fixed on the inner wall of the right side rack S by screws; the longitudinal lifting cylinder Q4 is connected with the self-gas source pipe network of the factory through a longitudinal cylinder gas source control valve Q5 to obtain the blowing gas pressure and the suction gas pressure.

The cloth stack flattening and emptying device Q is a program for continuing to work after the folding of the cloth stack connected with the cloth stack is completed; after the current flat pressing plate I1, the rear flat pressing plate I2, the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are withdrawn (separated) from the folded cloth piece stack, the controller A controls the air blowing valve of the longitudinal air cylinder air source control valve Q5 to be closed, the air suction valve to be opened, the telescopic rod of the longitudinal lifting air cylinder Q4 is retracted, the lever foundation shaft Q3 is taken as a foundation point, the lever principle is adopted, the front end of the lever frame Q2 is lifted and the rear end is lowered, the cloth folding plate frame Q1 is synchronously lowered, the cloth folding plate frame Q1 forcefully presses the top of the cloth piece stack, the downward pressing pressure is 5 kg-10 kg, the cloth piece stack is emptied by being pressed more flatly, and the cloth piece stack is prevented from being automatically opened/loosened by rebound due to over-high thickness, so that a whole block is formed, and the whole molding is stable; then, the controller A controls the blowing valve of the longitudinal cylinder air source control valve Q5 to be opened, the air suction valve to be closed, the telescopic rod of the longitudinal lifting cylinder Q4 extends out, the front end of the lever frame Q2 descends and the rear end of the lever frame Q2 is lifted by taking the lever basic shaft Q3 as a basic point, the cloth folding pressing plate frame Q1 is synchronously lifted, and the cloth folding pressing plate frame Q1 is lifted off the top of the cloth sheet stack;

The controller a then controls the next program operation.

Further: the right section of the cloth piece supporting conveyor belt assembly F is provided with a cloth piece stacking compression device R near the tail end; the cloth piece stacking compression device R comprises a front side wall plate frame R1, a rear side wall plate frame R2, a bearing flat plate device R3, a cylinder portal frame R4, a cloth stacking compression cylinder R5, a cloth stacking compression plate R6, a cloth piece detection signal sensor R7 and a compression cylinder air source control valve R8, wherein the cloth stacking compression cylinder R5 is connected with the compression cylinder air source control valve R8 through an air pipe, and the compression cylinder air source control valve R8 is connected with the controller A through an electric wire; the cloth-stacked compression cylinder R5 is connected with an own air source pipe network of a factory through a compression cylinder air source control valve R8 to obtain blowing air pressure and suction air pressure. The bearing flat plate device R3 and the cloth folding compression plate R6 are preferably arranged horizontally, and the clamping pressure is uniform; the long width of the bottom surface of the cloth stack compression plate R6 is larger than the long width of the pressed cloth sheet stack; the length of the cloth-folded compression plate R6 is as follows: 40 cm-60 cm; the width of the cloth-stacked compression plate R6 is as follows: 40 cm-60 cm; guide rod positioning holes R9 are formed in cylinder portal frames R4 on the left side and the right side of the cloth-stacked compression cylinder R5, compression plate positioning rods R10 are connected to the guide rod positioning holes R9 in a penetrating mode, and the bottom ends of the compression plate positioning rods R10 are fixedly connected with the top of the cloth-stacked compression plate R6; because the cloth sheet stack is soft, the telescopic rod of the cloth stack compression cylinder R5 stretches out and presses the cloth stack under high pressure, and in case that one side of the cloth stack compression plate R6 is stressed unevenly, the compression plate positioning rod R10 plays a role of balancing pressure to prevent the cloth stack compression plate R6 from pressing the cloth stack to be askew; and a compressed air cylinder air source control valve R8 electromagnetic valve.

The front side wall plate frame R1 and the rear side wall plate frame R2 are arranged at the front and rear outer sides corresponding to the cloth piece supporting conveyer belt assembly F; the front side wall plate frame R1 and the rear side wall plate frame R2 are fixedly connected with a bearing flat plate device R3, the bearing flat plate device R3 transversely crosses and is connected with the middle layer space F2, and the top plate surface of the bearing flat plate device is close to the back surface of the upper layer belt assembly F1; the top of the bearing flat plate device R3 is flat; the front side wall plate frame R1 and the rear side wall plate frame R2 are fixedly connected with an air cylinder portal frame R4 through bolts, the middle of the air cylinder portal frame R4 is vertically and fixedly connected with a cloth folding compression air cylinder R5 through bolts, a bottom telescopic rod end of the cloth folding compression air cylinder R5 is fixedly connected with a cloth folding compression plate R6 through screws, the outer side of the middle of the air cylinder portal frame R4 is fixedly connected with a cloth detection signal sensor R7 through a data line, the cloth detection signal sensor R7 is connected with a controller A through a data line, and the cloth output from a cloth supporting conveyor belt assembly F is detected downwards through the cloth detection signal sensor R7. Normally, the cloth folding compression plate R6 is lifted up through the inward shrinkage of the cloth folding compression cylinder R5, and a space is reserved between the cloth folding compression plate R6 and the cloth piece supporting and conveying belt assembly F for the cloth piece to pass through; the height between the cloth folding compression plate R6 and the cloth piece supporting conveyor belt assembly F is 15 cm-25 cm;

The cloth sheet stacking compression device R is used for secondary compression; the front flat pressing plate I1, the rear flat pressing plate I2, the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are withdrawn (separated) from the folded cloth piece stack and are not contacted with the cloth piece stack any more; the cloth piece folding and compressing device R is a program for connecting a cloth piece folding and flattening and evacuating device Q to continue to work, after the work of the cloth piece folding and flattening and evacuating device Q is completed, a controller A controls a motor transmission device D to continue to start rotating work, the motor transmission device D drives a left conveyor belt rotating shaft sleeving device E to rotate, a cloth piece supporting conveyor belt assembly F rotates along with the left conveyor belt rotating shaft sleeving device E, a right conveyor belt rotating shaft sleeving device G rotates along with the right conveyor belt rotating shaft sleeving device G, and therefore the cloth piece supporting conveyor belt assembly F rotates from left to right; the cloth detection signal sensor R7 continuously feeds back signals to the controller A; because the cloth piece supporting and conveying belt assembly F rotates from left to right, the cloth piece stack is conveyed from left to right, the cloth piece stack passes through the gap between the supporting flat plate device R3 and the cloth piece stack compression plate R6, when the cloth piece stack is conveyed, the cloth piece stack front head is caught and detected by the cloth piece detection signal sensor R7, namely a feedback signal is fed to the controller A and is regarded as the cloth piece stack to be conveyed to a specified position, then the controller A controls the motor transmission device D to stop rotating, the left conveying belt rotating shaft sleeve device E, the right conveying belt rotating shaft sleeve device G and the cloth piece supporting and conveying belt assembly F stop rotating, and the cloth piece stack middle section just stays between the supporting flat plate device R3 and the cloth piece stack compression plate R6; then, the controller A controls the air blowing valve of the air source control valve R8 of the compressed air cylinder to be opened, the air suction valve to be closed, the telescopic rod of the cloth stack compressed air cylinder R5 to descend, the positioning rod R10 of the compressed plate to descend synchronously, the cloth stack compressed plate R6 to descend synchronously to compress the cloth stack, the cloth stack is supported by the supporting flat plate device R3 at the bottom, the cloth stack is clamped between the supporting flat plate device R3 and the cloth stack compressed plate R6, the upper layer belt component F1 is clamped at the same time, the clamping force is 7 kg-15 kg, and the clamping time is 3 seconds-5 seconds; after the clamping is completed, the controller A controls the air blowing valve of the air source control valve R8 of the compressed air cylinder to be closed, the air suction valve is opened, the telescopic rod of the cloth stack compressed air cylinder R5 is lifted, the positioning rod R10 of the compressed plate is synchronously lifted, and the cloth stack compressed plate R6 is synchronously lifted to separate from the lower cloth pressing sheet stack, so that the compression process is completed; thus, the air inside the cloth piece stack is completely emptied for the second time, the cloth piece stack is flattened, emptied and formed, the formed cloth piece stack is square, concise, attractive, small in size, flat and wrinkle-free in surface, the folding lines of all folding sections are clear, after the folding sections are compressed by the cloth piece stack compressing device R, the folded cloth piece stack is packaged, labeled, marked and the like through a packaging bag, and then marketed and sold.

Preferably: an upper signal transmitting through hole R11 is formed in the middle plate body of the cloth-stacked compression plate R6; the plate body of the bearing flat plate device R3 is provided with a lower signal transmitting through hole R12;

the cloth piece detection signal sensor R7 comprises an upper half signal emitter R71 and a lower half signal emitter R72, wherein the upper half signal emitter R71 is connected with the controller A through a data line, the upper half signal emitter R71 is fixedly connected to the outer side of the middle part of the air cylinder portal frame R4 through a bracket and a screw and is positioned above the upper layer belt assembly F1, and the signal emitter of the upper half signal emitter R71 faces downwards; the lower half signal reflector R72 is fixedly connected to the front side frame B through a bracket and a screw, the lower half signal reflector R72 stretches into the lower part of the plate body arranged on the bearing flat plate device R3, the upper half signal emitter R71, the upper signal emitting through hole R11, the hollowed-out gap F4, the lower signal emitting through hole R12 and the lower half signal reflector R72 vertically correspond, and the upper half signal emitter R71 carries out light sensing signal transmission with the lower half signal reflector R72 through the upper signal emitting through hole R11, the hollowed-out gap F4, the lower signal emitting through hole R12; normally, the light sensing signal emitted by the upper half signal emitter R71 is reflected back to the upper half signal emitter R71 through the lower half signal reflector R72 and is a touch signal without a cloth piece; when the cloth sheet stack is conveyed from the top of the upper layer belt assembly F1 from left to right, the transmission signals of the cloth sheet stack are cut off by the front head of the cloth sheet stack, the light sensing signals of the upper half signal transmitter R71 cannot be transmitted to the lower half signal transmitter R72, the lower half signal transmitter R72 cannot reflect the light sensing signals, and the controller A regards that the signal passing through the cloth sheet stack is captured through the upper half signal transmitter R71 and regards that the cloth sheet stack reaches a designated position; the specific installation structure and the component composition of the cloth piece detection signal sensor R7 are reasonable, and the detection is accurate; of course, the cloth detection signal sensor R7 may be an infrared sensor, a light sensor, a photoelectric switch, a micro switch, a touch switch, or the like, which is not limited herein, so long as the detection function is realized.

Preferably: an exhaust air hole R13 is formed in the plate body of the cloth-stacked compression plate R6, air can be discharged from the exhaust air hole R13 when the cloth sheet stack is compressed, and the exhaust air is more rapid and efficient, and has a good effect;

preferably: the bearing flat plate device R3 comprises a front wall plate seat R31, a rear wall plate seat R32 and a top bearing flat plate R33, the front wall plate seat R31 is fixedly connected with the inner wall of the front wall plate frame R1 through bolts, the rear wall plate seat R32 is fixedly connected with the inner wall of the rear wall plate frame R2 through bolts, the front end and the rear end of the top bearing flat plate R33 are fixedly connected with the tops of the corresponding front wall plate seat R31 and the rear wall plate seat R32 through bolts, the top of the top bearing flat plate R33 is flat, the top surface of the top bearing flat plate R33 is close to the back surface of the upper layer belt assembly F1, the distance between the top bearing flat plate R33 and the upper layer belt assembly F1 is 1 cm-2 cm, the top bearing flat plate R33 is preferably horizontally arranged), and the bearing flat plate device R3 is made of metal.

Further: the first pressing strip overturning device L at least comprises a first front rotating shaft supporting seat L2, a first overturning shaft L3, a first rotating shaft gear L4, a first rack device L5, a first overturning cylinder L6, a first rear rotating shaft supporting seat L7 and a first cylinder air source control valve L8, wherein the first cylinder air source control valve L8 is connected with the controller A through an electric wire, and the first overturning pressing strips L1 are fixedly welded and connected on the first overturning shaft L3 in the same arrangement; the first front rotating shaft supporting seat L2 is arranged close to the front side frame B, the first rear rotating shaft supporting seat L7 is arranged close to the rear side frame C, the front end and the rear end of the first rotating shaft L3 movably cross the tops of the first front rotating shaft supporting seat L2 and the first rear rotating shaft supporting seat L7 (the tops of the first front rotating shaft supporting seat L2 and the first rear rotating shaft supporting seat L7 are respectively provided with a shaft hole, the front end and the rear end of the first rotating shaft L3 just can be connected in the shaft holes in a penetrating way, so that movable connection is formed, lubricating oil can be filled in the shaft holes to improve lubricating effect, bearings can be arranged in the shaft holes to improve sliding performance), the front end of the first rotating shaft L3 is fixedly connected with a first rotating shaft gear L4 in a penetrating way, a gear of the first rotating shaft gear L4 is in meshed connection with a gear stage of the first rack device L5, and the first rack device L5 and the cloth supporting conveyor belt assembly F are arranged in the same direction and level, preferably horizontally; the first rack device L5 is fixedly connected with the telescopic rod end of the first overturning cylinder L6 through bolts; the first rack device L5, the first rotating shaft gear L4 and the first rotating shaft L3 are driven to move in a telescopic way through a telescopic rod of the first overturning cylinder L6, so that the first overturning pressing strip L1 overturns, folds and presses the cloth piece towards the top of the cloth piece flat pressing plate device I; the first turnover shaft L3 is positioned near the left side of the bearing platform H; the first front rotating shaft supporting seat L2 is fixedly connected with the first overturning cylinder L6 through bolts; the first cylinder air source control valve L8 is an electromagnetic valve; the air source of the first overturning air cylinder L6 is connected with the factory by an air source pipe network of the factory through a first air cylinder air source control valve L8 to obtain blowing air pressure and suction air pressure; corresponding first front limiting anti-slip rings L31 and first rear limiting anti-slip rings L32 are fixedly clamped at the front end section and the rear end section of the first turnover shaft L3, the first front limiting anti-slip rings L31 and the first rear limiting anti-slip rings L32 are respectively close to the inner walls of corresponding first front rotation shaft supporting seats L2 and first rear rotation shaft supporting seats L7, and the first turnover shaft L3 is prevented from slipping out through the first front limiting anti-slip rings L31 and the first rear limiting anti-slip rings L32; a bending position is arranged between the root of the first overturning layering L1 and the first overturning shaft L3 and is used for adjusting the height overturning fall between the first overturning shaft L3 and the supporting platform H;

Normally, the first overturning pressing strip L1 is flatly arranged in the middle layer space F2; when the air-blowing control device works, the controller A controls the air blowing valve of the air source control valve L8 to be opened, the air suction valve to be closed, the air pressure of the first overturning air cylinder L6 enters, the telescopic rod of the air-blowing control valve stretches out, the first rack device L5 moves leftwards, the first rotating shaft gear L4 and the first overturning shaft L3 rotate in the opposite directions, namely: the first overturning pressing strip L1 rotates clockwise and rotates clockwise, so that the first overturning pressing strip L1 passes through the hollowed-out gap F4 from bottom to top to overturn, the first overturning pressing strip L1 supports the cloth piece stack from the bottom of the cloth piece and turns over (overturns) the cloth piece stack rapidly; precisely, the degree of turning of the first turning bead L1 is: 0-180 degrees; the telescopic rod of the first overturning cylinder L6 can just enable the first overturning layering L1 to overturn 180 degrees after extending out; after the telescopic rod of the first overturning cylinder L6 is retracted completely, the return stroke of the first overturning pressing bar L1 can be just overturned for 180 degrees; after folding (overturning) cloth piece is folded, the controller A controls the air blowing valve of the air source control valve L8 of the first air cylinder to be closed, the air suction valve to be opened, the air pressure of the first overturning air cylinder L6 is sucked away, the telescopic rod of the air pressure overturning air cylinder is retracted, the first rack device L5 moves to the right, and the first rotating shaft gear L4 and the first overturning shaft L3 rotate in opposite directions relative to the first rack device L5, namely: the first overturning pressing bar L1 rotates left and anticlockwise, and therefore the first overturning pressing bar L1 overturns backwards and returns, and the first overturning pressing bar L1 finally resets in the middle layer space F2 and waits for the next cyclic overturning operation; the first pressing strip overturning device L is reasonable in structural arrangement, firm in installation, stable, flexible, quick and efficient in overturning during working.

The first rack device L5 comprises a first rack seat L51 and a first transverse rack L52, the top of the first rack seat L51 is fixedly connected with the first transverse rack L52 through a bolt, and the first rack seat L51 is fixedly connected with the telescopic rod end of the first overturning cylinder L6 through a bolt; the top gear stage of the first transverse rack L52 is in meshing connection with the first rotary shaft gear L4, and when the telescopic rod of the first overturning cylinder L6 stretches out and draws back, the first rack seat L51 and the first transverse rack L52 move synchronously, and the first transverse rack L52 drives the first rotary shaft gear L4 to rotate; reasonable in design's revolution mechanic.

The second pressing strip overturning device M at least comprises a second front rotating shaft supporting seat M2, a second overturning shaft M3, a second rotating shaft gear M4, a second rack device M5, a second overturning cylinder M6, a second rear rotating shaft supporting seat M7 and a second cylinder air source control valve M8, wherein the second cylinder air source control valve M8 is connected with the controller A through an electric wire, and the second overturning pressing strips M1 are fixedly connected to the second overturning shaft M3 in the same arrangement; the second front rotating shaft supporting seat M2 is arranged close to the front side frame B, the second rear rotating shaft supporting seat M7 is arranged close to the rear side frame C, the front end and the rear end of the second rotating shaft M3 movably cross the tops of the second front rotating shaft supporting seat M2 and the second rear rotating shaft supporting seat M7 (the tops of the second front rotating shaft supporting seat M2 and the second rear rotating shaft supporting seat M7 are respectively provided with a shaft hole, the front end and the rear end of the second rotating shaft M3 just can be connected in the shaft holes in a penetrating way, so that movable connection is formed, lubricating oil can be filled in the shaft holes to improve the lubricating effect, bearings can be arranged in the shaft holes to improve the sliding performance), the front end of the second rotating shaft M3 is fixedly connected with a second rotating shaft gear M4 in a penetrating way, the gears of the second rotating shaft gear M4 are in meshed connection with the gear stages of the second rack device M5, and the second rack device M5 and the cloth piece supporting conveyor belt assembly F are arranged in the same direction and level, and preferably in a horizontal way; the second rack device M5 is fixedly connected with the telescopic rod end of the second overturning cylinder M6 through bolts; the second overturning layering M1 overturns, folds and presses the cloth piece towards the top of the cloth piece flat pressing plate device I by driving the second rack device M5, the second rotating shaft gear M4 and the second overturning shaft M3 to move through the telescopic rod of the second overturning cylinder M6 in an extending mode; the first overturning shaft L3 is positioned near the right of the bearing platform H; the first turnover shaft L3 and the second turnover shaft M3 rotate clockwise and anticlockwise; the second front rotating shaft supporting seat M2 is fixedly connected with the second overturning cylinder M6 through bolts. A bending position is arranged between the root of the second overturning layering M1 and the second overturning shaft M3 and is used for adjusting the height overturning fall between the second overturning shaft M3 and the supporting platform H;

The second cylinder air source control valve M8 is an electromagnetic valve; the air source of the second overturning air cylinder M6 is connected with the factory by a second air cylinder air source control valve M8 and is connected with the air source pipe network to obtain the blowing air pressure and the suction air pressure; the front end section and the rear end section of the second turning shaft M3 are fixedly provided with corresponding second front limiting anti-drop rings M31 and second rear limiting anti-drop rings M32, the second front limiting anti-drop rings M31 and the second rear limiting anti-drop rings M32 are respectively close to the inner walls of the corresponding second front turning shaft supporting seat M2 and second rear turning shaft supporting seat M7, and the second turning shaft M3 is prevented from falling off through the second front limiting anti-drop rings M31 and the second rear limiting anti-drop rings M32; a bending position is arranged between the root of the second overturning layering M1 and the second overturning shaft M3 and is used for adjusting the height overturning fall between the second overturning shaft M3 and the supporting platform H;

normally, the second overturning pressing strip M1 is flatly arranged in the middle layer space F2; when the air-blowing control device works, the controller A controls the air blowing valve of the second air cylinder air source control valve M8 to be opened, the air suction valve to be closed, the second overturning air cylinder M6 is provided with air pressure to enter, the telescopic rod of the second overturning air cylinder extends out, the second rack device M5 moves to the right, the second rotating shaft gear M4 and the second overturning shaft M3 rotate in the opposite directions, namely: the second overturning pressing bar M1 rotates left and anticlockwise, and therefore the second overturning pressing bar M1 overturns from bottom to top through the hollowed-out gap F4, and the second overturning pressing bar M1 supports the cloth piece stack from the bottom of the cloth piece and turns over (overturns) the cloth piece stack rapidly; precisely, the degree of turning of the second turning bead M1 is: 0-180 degrees; the telescopic rod of the second overturning cylinder M6 can just enable the second overturning layering M1 to overturn 180 degrees after extending out; the telescopic rod of the second overturning cylinder M6 can just enable the return stroke of the second overturning layering M1 to overturn 180 degrees after being retracted completely; after folding (overturning) the cloth piece stack, the controller A controls the air blowing valve of the second air cylinder air source control valve M8 to be closed, the air suction valve to be opened, the air pressure of the second overturning air cylinder M6 is sucked away, the telescopic rod of the second overturning air cylinder M6 is retracted, the second rack device M5 moves leftwards, and the second rotating shaft gear M4 and the second overturning shaft M3 rotate in opposite directions relative to the second rack device M5, namely: the second overturning pressing bar M1 rotates clockwise and rotates rightwards, and therefore the second overturning pressing bar M1 overturns backwards and returns, and the second overturning pressing bar M1 finally resets in the middle layer space F2 and waits for the next circulating overturning work; the second pressing bar overturning device M is reasonable in structural arrangement, firm in installation, stable, flexible, quick and efficient in overturning during working.

The second rack device M5 comprises a second rack seat M51 and a second transverse rack M52, the top of the second rack seat M51 is fixedly connected with the second transverse rack M52 through a bolt, and the second rack seat M51 is fixedly connected with the telescopic rod end of the second overturning cylinder M6 through a bolt; the top gear stage of the second transverse rack M52 is in meshing connection with the second rotating shaft gear M4, and when the telescopic rod of the second overturning cylinder M6 stretches out and draws back, the second rack seat M51 and the second transverse rack M52 synchronously move, and the second transverse rack M52 drives the second rotating shaft gear M4 to rotate; reasonable in design's revolution mechanic.

Further: the first front rotating shaft supporting seat L2, the first rear rotating shaft supporting seat L7, the second front rotating shaft supporting seat M2 and the second rear rotating shaft supporting seat M7 are jointly and movably connected with a turnover shaft distance adjusting device P; the overturning shaft distance adjusting device P is connected with the front side frame B and the rear side frame C;

the overturning shaft interval adjusting device P comprises an interval adjusting hand wheel P1, a main interval rotating adjusting shaft P2, a main shaft front conical gear P3, a main shaft front shaft seat P4, a front cylinder interval adjusting threaded rod P5, a front left conical gear P6, a front left bearing seat P7, a front right bearing seat P8, a front positioning sliding device P9, a main shaft rear conical gear P10, a main shaft rear shaft seat P11, a rear cylinder interval adjusting threaded rod P12, a rear left conical gear P13, a rear left bearing seat P14, a rear right bearing seat P15 and a rear positioning sliding device P16; the front cylinder space adjusting threaded rod P5 and the rear cylinder space adjusting threaded rod P12 are preferably provided with threads only in the middle section, and the left end section and the right end section are not provided with threads, so that rod bodies connected with the front left bearing seat P7, the front right bearing seat P8, the rear left bearing seat P14 and the rear right bearing seat P15 prevent friction and abrasion with the threads; the main interval rotary adjusting shaft P2 is transversely arranged, the front cylinder interval adjusting threaded rod P5 and the rear cylinder interval adjusting threaded rod P12 are coaxially arranged with the cloth supporting conveyor belt assembly F, and an included angle between the main interval rotary adjusting shaft P2 and the front cylinder interval adjusting threaded rod P5 and an included angle between the main interval rotary adjusting shaft P2 and the rear cylinder interval adjusting threaded rod P12 are 90 degrees;

The front shaft seat P4, the front left bearing seat P7 and the front right bearing seat P8 of the main shaft are fixedly connected with the front side frame B through screws, and the rear shaft seat P11, the rear left bearing seat P14 and the rear right bearing seat P15 of the main shaft are fixedly connected with the rear side frame C through screws;

the spacing adjusting hand wheel P1 is fixedly connected to the front end of a main spacing rotating adjusting shaft P2 by a screw component, and the front and rear end section shaft bodies of the main spacing rotating adjusting shaft P2 just can cross the corresponding main shaft front shaft seat P4 and the main shaft rear shaft seat P11 and form movable connection with the main spacing rotating adjusting shaft P2 (namely, the main shaft front shaft seat P4 and the main shaft rear shaft seat P11 are respectively provided with a shaft penetrating hole, and the front and rear end section shaft bodies of the main spacing rotating adjusting shaft P2 just can cross the corresponding main shaft front shaft seat P4 and the corresponding main shaft rear shaft seat P11 and form movable connection with the shaft penetrating holes); the front and rear end section shaft bodies of the main interval rotation adjusting shaft P2 are fixedly connected with a main shaft front conical gear P3 and a main shaft rear conical gear P10 in a penetrating and clamping manner;

the left end rod body and the right end rod body of the front cylinder space adjusting threaded rod P5 just can cross the corresponding front left bearing seat P7 and the front right bearing seat P8 and are movably connected with the front left bearing seat P7 and the front right bearing seat P8 (namely, through shaft holes are formed in the front left bearing seat P7 and the front right bearing seat P8, the front end rod body and the rear end rod body of the front cylinder space adjusting threaded rod P5 just can cross the through shaft holes of the corresponding front left bearing seat P7 and the front right bearing seat P8 and are movably connected with the through shaft holes), the first front rotating shaft supporting seat L2 is in forward threaded connection with the front cylinder space adjusting threaded rod P5, the second front rotating shaft supporting seat M2 is in reverse threaded connection with the front cylinder space adjusting threaded rod P5 (corresponding threaded holes are formed in the bottoms of the first front rotating shaft supporting seat L2 and the second front rotating shaft supporting seat M2, the first front rotating shaft supporting seat L2 is an orthodontic threaded hole), and the second front rotating shaft supporting seat M2 is a reverse threaded hole; the front conical gear P3 of the main shaft is in meshing connection with the front left conical gear P6; the bottoms of the front left bearing seat P7 and the front right bearing seat P8 are connected to the sliding part of the front positioning sliding device P9 in a sliding manner, and the fixed part of the front positioning sliding device P9 is fixedly connected to the front side frame B; the front positioning sliding device P9 consists of a sliding part and a fixed part, wherein the sliding part is a clamping part, and the fixed part is a guide rail strip; the sliding member of the front positioning slide device P9 is engaged with the fixing member of the front positioning slide device P9 by a dovetail groove structure, and the sliding member of the front positioning slide device P9 slides left and right based on the fixing member of the front positioning slide device P9, and the front left bearing block P7, the front right bearing block P8 are fixedly connected with the sliding member of the front positioning slide device P9 by screws, so that the front left bearing block P7 and the front right bearing block P8 perform left and right sliding movement based on the fixing member of the front positioning slide device P9. The front positioning slide device P9 is a positioning slide rail.

The left and right end section rod bodies of the rear cylinder space adjusting threaded rod P12 just can cross the corresponding rear left bearing seat P14 and rear right bearing seat P15 and form movable connection with the rear left bearing seat P14 and the rear right bearing seat P15 (namely, the front and rear end section rod bodies of the rear cylinder space adjusting threaded rod P12 just can cross the corresponding rear left bearing seat P14 and the rear right bearing seat P15 and form movable connection with the through shaft holes; the first rear rotary shaft supporting seat L7 is in forward threaded connection with the rear cylinder space adjusting threaded rod P12, the second rear rotary shaft supporting seat M7 is in reverse threaded connection with the rear cylinder space adjusting threaded rod P12 (corresponding threaded holes are formed in the bottoms of the first rear rotary shaft supporting seat L7 and the second rear rotary shaft supporting seat M7, the first rear rotary shaft supporting seat L7 is an orthodontic threaded hole, the second rear rotary shaft supporting seat M7 is an anti-dental threaded hole, and the rear cylinder space adjusting threaded rod P12 penetrates through and is screwed into the threaded holes of the first rear rotary shaft supporting seat L7 and the second rear rotary shaft supporting seat M7 to form threaded connection); the main shaft rear conical gear P10 is in meshing connection with the rear left conical gear P13; the bottoms of the rear left bearing seat P14 and the rear right bearing seat P15 are connected to the sliding part of the rear positioning sliding device P16 in a sliding manner, and the fixed part of the rear positioning sliding device P16 is fixedly connected to the rear side frame C; the rear positioning sliding device P16 consists of a sliding part and a fixed part, wherein the sliding part is a clamping part, and the fixed part is a guide rail strip; the sliding member of the rear positioning slide device P16 is engaged with the fixing member of the rear positioning slide device P16 by a dovetail groove structure, and the sliding member of the rear positioning slide device P16 slides left and right based on the fixing member of the rear positioning slide device P16, and the rear left bearing seat P14, the rear right bearing seat P15 are fixedly connected with the sliding member of the rear positioning slide device P16 by screws, so that the rear left bearing seat P14 and the rear right bearing seat P15 perform left and right sliding movement based on the fixing member of the rear positioning slide device P16. The rear positioning slide P16 is a positioning slide rail.

Adjustment example 1: when the rotary type rotary compressor is used, when the spacing adjusting hand wheel P1 is rotated by manually pulling the spacing adjusting hand wheel P1 anticlockwise, the main spacing rotary adjusting shaft P2, the main shaft front conical gear P3 and the main shaft rear conical gear P10 simultaneously rotate anticlockwise, the main shaft front conical gear P3 and the main shaft rear conical gear P10 synchronously drive the corresponding front left conical gear P6 and rear left conical gear P13 to rotate anticlockwise (rotate clockwise), the front cylinder spacing adjusting threaded rod P5, the front left conical gear P6, the rear cylinder spacing adjusting threaded rod P12 and the rear left conical gear P13 simultaneously rotate clockwise, the rotation directions of the main spacing rotary adjusting shaft P2, the front cylinder spacing adjusting threaded rod P5 and the rear cylinder spacing adjusting threaded rod P12 are just opposite, the spacing between the first front rotary shaft L2 and the second front rotary shaft supporting seat M2 is reduced, the two rotary shaft supporting seats are close, the spacing between the first rear rotary shaft supporting seat L7 and the second rear rotary shaft supporting seat M7 is reduced, and the rotary shaft supporting seats are close; the space between the first overturning cylinder L6 and the second overturning cylinder M6 is reduced, the two overturning cylinders are close, the space between the first overturning shaft L3 and the second overturning shaft M3 is reduced, the two overturning shafts are close, the space between the first overturning pressing strip L1 and the second overturning pressing strip M1 is reduced, when the folded cloth piece is overturned, the folded cloth piece stacking size (such as width) is reduced, the folded cloth piece stacking size is used for small-range adjustment, the adjustment range is generally 0-10 cm, the adjustment is used for adjusting the size suitable for the required folded cloth piece stacking, the synchronous adjustment is accurate, the adjustment is flexible, the adjustment size is unified and standard, the adjustment is completed in one step, the adjustment efficiency is high, and the alignment is not needed.

Adjustment example 2: when the pitch adjusting hand wheel P1 is rotated by hand clockwise, the main pitch rotating adjusting shaft P2, the main shaft front conical gear P3 and the main shaft rear conical gear P10 simultaneously rotate clockwise, the main shaft front conical gear P3 and the main shaft rear conical gear P10 synchronously drive the corresponding front left conical gear P6 and rear left conical gear P13 to rotate reversely (rotate anticlockwise), the front cylinder pitch adjusting threaded rod P5, the front left conical gear P6, the rear cylinder pitch adjusting threaded rod P12 and the rear left conical gear P13 simultaneously rotate anticlockwise, the main interval rotation adjusting shaft P2 is just opposite to the rotation directions of the front cylinder interval adjusting threaded rod P5 and the rear cylinder interval adjusting threaded rod P12, the interval between the first front rotary shaft supporting seat L2 and the second front rotary shaft supporting seat M2 is increased, the two rotary shaft supporting seats are far away, the interval between the first rear rotary shaft supporting seat L7 and the second rear rotary shaft supporting seat M7 is increased, and the two rotary shaft supporting seats are far away; the space between the first overturning cylinder L6 and the second overturning cylinder M6 is increased, the distance between the two overturning cylinders is far away, the space between the first overturning shaft L3 and the second overturning shaft M3 is increased, the distance between the two overturning shafts is far away, the space between the first overturning pressing strip L1 and the second overturning pressing strip M1 is increased, when the folded cloth piece is overturned, the folded cloth piece stacking size (such as width) is increased, the folded cloth piece stacking size is used for adjusting the folded cloth piece stacking size in a small range, the adjusting range is generally 0-10 cm, the required folded cloth piece stacking size is adjusted, the synchronous adjustment is synchronous, the adjustment is accurate, the adjustment is flexible, the adjustment size is unified and standard, the adjustment is completed in one step, the adjustment efficiency is high, and the alignment is not needed.

Further: the pressure plate lifting cylinder device J comprises a cylinder underframe J1, a pressure plate lifting cylinder J2, a pressure plate cylinder air source control valve J3, a public lifting cross beam J4, a front transverse telescopic cylinder J5, a front lifting vertical frame J6, a rear transverse telescopic cylinder J7, a rear lifting vertical frame J8 and a cross beam air source control valve J9, wherein the pressure plate lifting cylinder J2 is connected with a factory air source pipe network through the pressure plate cylinder air source control valve J3 to obtain blowing air pressure and air suction air pressure; the front transverse telescopic cylinder J5 and the rear transverse telescopic cylinder J7 are connected with an own air source pipe network of a factory through a beam cylinder air source control valve J9 to obtain blowing air pressure and suction air pressure; the two pressure plate lifting cylinders J2 are distributed at two end sections of the public lifting cross beam J4, so that the public lifting cross beam J4 has better supporting capacity, the lifting is more stable, and the front section and the rear section of the public lifting cross beam J4 are more balanced/stable;

the cylinder underframe J1, the pressing plate lifting cylinder J2, the public lifting cross beam J4, the front transverse telescopic cylinder J5 and the rear transverse telescopic cylinder J7 are arranged at the lower bottom of the cloth piece supporting conveyor belt assembly F;

the front end and the rear end of the cylinder chassis J1 are fixedly connected with the corresponding front side frame B and rear side frame C through bolts and are used for fixedly installing cylinders, the cylinder chassis J1 is vertically and fixedly connected with a pressing plate lifting cylinder J2 through bolts, the pressing plate lifting cylinder J2 is connected with a pressing plate cylinder air source control valve J3 through an air pipe, the pressing plate cylinder air source control valve J3 is connected with a controller A through an electric wire, the top telescopic rod end of the pressing plate lifting cylinder J2 is fixedly connected with a public lifting beam J4 through bolts, the public lifting beam J4 is made of lath type and iron metal, the length of the public lifting beam J4 is larger than the width of a cloth supporting conveyor belt assembly F, the top of the public lifting beam J4 is fixedly connected with a front transverse telescopic cylinder J5 and a rear transverse telescopic cylinder J7 through bolts, the telescopic rods of the front transverse telescopic cylinder J5 are arranged in opposite directions, and the telescopic rods of the rear transverse telescopic cylinder J7 are telescopic forwards; the front transverse telescopic cylinder J5 and the rear transverse telescopic cylinder J7 are connected with a beam cylinder air source control valve J9 through air pipes, and the beam cylinder air source control valve J9 is connected with the controller A through wires;

The telescopic rod end of the front transverse telescopic cylinder J5 is fixedly connected with the bottom of the front lifting vertical frame J6 by a screw, and the top of the front lifting vertical frame J6 is fixedly connected with the outer side of the front flat pressing plate I1 by a screw; the telescopic rod end of the rear transverse telescopic cylinder J7 is fixedly connected with the bottom of the rear lifting vertical frame J8 through screws, and the top of the rear lifting vertical frame J8 is fixedly connected with the outer side of the rear flat pressing plate I2 through screws; the front lifting vertical frame J6 and the rear lifting vertical frame J8 are arranged on the corresponding front and rear outer sides of the cloth piece supporting conveyer belt assembly F; the specific structure and the component connection for opening and closing left and right are reasonable in structural design,

lifting and adjusting process: in a normal state, the controller A controls the air blowing valve of the air source control valve J3 of the pressing plate cylinder to be opened, the air suction valve is closed, the air pressure enters the pressing plate lifting cylinder J2, the telescopic rod of the pressing plate lifting cylinder J2 stretches out to jack up the public lifting cross beam J4, the front transverse telescopic cylinder J5 and the rear transverse telescopic cylinder J7 are lifted up in a follow-up manner, the front lifting vertical frame J6 and the rear lifting vertical frame J8 are lifted up synchronously, the front flat pressing plate I1 and the rear flat pressing plate I2 are lifted up synchronously, the front overhead cylinder N1 and the rear overhead cylinder O1 are lifted up synchronously, therefore, a space for conveying a cloth sheet stack is reserved between the front flat pressing plate I1, the rear flat pressing plate I2 and the upper layer belt assembly F1 (the cloth sheet supporting and conveying belt assembly F), normal conveying of the cloth sheet stack is not hindered, the space height between the upper layer belt assembly F1 and the front flat pressing plate I1 and the rear flat pressing plate I2 is 5 cm-10 cm, and the cloth sheet stack can be conveyed from the top of the upper layer belt assembly F1; when the controller A controls the air blowing valve of the air source control valve J3 of the pressing plate cylinder to be closed and the air sucking valve to be opened, the air pressure of the pressing plate lifting cylinder J2 sucks, the telescopic rod of the pressing plate lifting cylinder J2 contracts inwards to pull down the public lifting cross beam J4, the front transverse telescopic cylinder J5 and the rear transverse telescopic cylinder J7 descend in a follow-up manner, the front lifting vertical frame J6 and the rear lifting vertical frame J8 descend synchronously, the front flat pressing plate I1 and the rear flat pressing plate I2 are pulled down synchronously, the front flat pressing plate I1 and the rear flat pressing plate I2 are pressed from the top of the cloth piece stack, then the supporting platform H clamps the cloth piece stack between the front flat pressing plate I1 and the rear flat pressing plate I2, the cloth piece stack is flattened and the cloth surface is flattened and flattened, and the upper layer belt component F1 is clamped together to be compressed and pressed and wait for folding; the front flat pressing plate I1 and the rear flat pressing plate I2 are U-shaped forks; the lifting concrete structure and the component connection are reasonable in structural design, the lifting speed of the air cylinder is high, the working efficiency is high, the lifting time is 1-2 seconds, and the lifting time is 1 second generally;

And (3) a front-back stretching and folding adjusting process: normally, the controller A controls the air blowing valve of the air source control valve J9 of the cross beam air cylinder to be closed, the air suction valve is opened, the telescopic rods of the rear transverse telescopic air cylinder J7 and the rear transverse telescopic air cylinder J7 are retracted to draw the front lifting vertical frame J6 and the rear lifting vertical frame J8 together, the front flat pressing plate I1 and the rear flat pressing plate I2 are arranged at the right top of the upper layer belt assembly F1 (the cloth piece bearing conveyor belt assembly F), and in order to enable the front flat pressing plate I1 and the rear flat pressing plate I2 to press the cloth piece stack from the top of the cloth piece stack to be in a cloth piece stack state;

when the controller A controls the blowing valve of the beam air cylinder air source control valve J9 to be opened and the air suction valve to be closed, the telescopic rods of the rear transverse telescopic air cylinder J7 and the rear transverse telescopic air cylinder J7 extend to open the front lifting vertical frame J6 and the rear lifting vertical frame J8, the front overhead air cylinder N1, the rear overhead air cylinder O1, the front flat pressing plate I1 and the rear flat pressing plate I2 are withdrawn from the outer side edge of the upper layer belt assembly F1 (the cloth piece supporting and conveying belt assembly F) corresponding to the side, the front flat pressing plate I1, the rear flat pressing plate I2, the front auxiliary pressing rod N2 and the rear auxiliary pressing rod O2 are withdrawn from the folded cloth piece stack, the cloth piece stack can flow along with the cloth piece supporting and conveying belt assembly F, and therefore, the controller A controls the motor driving device D to continuously start rotating work, and the motor driving the left conveying belt rotating shaft sleeving device E, the right conveying belt sleeving device G and the cloth piece conveying belt assembly F to rotate from left to right, and the cloth piece supporting and conveying belt assembly F are conveyed to the cloth piece stack compressing device R to fold and compress the cloth piece stack;

The left and right stretching and gathering speeds of the air cylinder are high, the working efficiency is high, the stretching time is 1-2 seconds, and the gathering time is 1-2 seconds, and is generally 1 second.

Further: the right ends of the front side frame B and the rear side frame C are fixedly connected with a right side frame S through bolts, the right side frame S is fixedly connected with a front side wall plate frame R1 and a rear side wall plate frame R2 through bolts, a belt penetrating hole S1 is formed in the right side frame S, and the right section of the cloth piece supporting conveyor belt assembly F penetrates out of the belt penetrating hole S1; the right side frame S is internally provided with a mechanical action area, and a human operation area is arranged outside the right side frame S, so that a belt penetrating hole S1 is formed in the right side frame S for ensuring the operation safety of a human, and a part of the right section of the cloth piece bearing conveyor belt assembly F is penetrated outside from the belt penetrating hole S1 for human operation; the rightmost end of the sheet support belt assembly F receives the folded stack of sheets for product packaging, labeling, boxing, etc.

Further: the motor transmission device D comprises a driving motor D1, a motor gear D2, a motor transmission belt D3 and a rotating shaft gear D4, wherein the driving motor D1 is fixedly connected to the inner wall of the front side wall plate frame R1 through bolts, the motor shaft end of the driving motor D1 is clamped and screwed to fix the motor gear D2, the motor transmission belt D3 is sleeved and tightly arranged between the motor gear D2 and the rotating shaft gear D4, the inner surface of the motor transmission belt D3 is provided with gear stages, rotation slip is prevented, and the rotation stroke is accurate; preferably: the driving motor D1 is a servo motor or a motor (a whole set of motor including a gearbox) comprising a gearbox integrated type or a set of motor or a variable frequency motor comprising a speed change function; because the belt cannot be too fast, there is a speed change.

The left conveyor belt rotating shaft sleeving device E comprises a left front bearing seat E1, a left conveyor belt rotating shaft E2 and a left rear bearing seat E3, wherein the left front bearing seat E1 and the left rear bearing seat E3 are fixedly connected to a corresponding front side rack B and a corresponding rear side rack C through bolts; the front end and the rear end of the left conveyor belt rotating shaft E2 just transversely penetrate through a front left front bearing seat E1 and a left rear bearing seat E3;

the right ends of the front side rack B and the rear side rack C are fixedly connected with a right side rack S through bolts, and the right side rack S is fixedly connected with a front side wall plate frame R1 and a rear side wall plate frame R2 through bolts;

the right conveyor belt rotating shaft sleeve setting device G comprises a right front bearing seat G1, a right conveyor belt rotating shaft G2 and a right rear bearing seat G3, wherein the right front bearing seat G1 and the right rear bearing seat G3 are fixedly connected to a corresponding front side wall plate frame R1 and a corresponding rear side wall plate frame R2 through bolts; the front end and the rear end of the right conveyor belt rotating shaft G2 just transversely penetrate through the right front bearing seat G1 and the right rear bearing seat G3;

a cloth piece supporting conveyor belt assembly F is sleeved and tightly sleeved between the left conveyor belt rotating shaft E2 and the right conveyor belt rotating shaft G2; the motor transmission device D, the left conveyor belt rotating shaft sleeve arranging device E and the right conveyor belt rotating shaft sleeve arranging device G are reasonable in structural arrangement, good in matching degree and stable in working rotation; the rotation speed of the cloth supporting belt assembly F is: 10 seconds/m to 15 seconds/m.

When the cloth piece supporting and conveying device works, the controller A controls the driving motor D1 to work, the motor gear D2 rotates to drive the motor driving belt D3 to rotate, the motor driving belt D3 drives the rotating shaft gear D4 to rotate, the left conveying belt rotating shaft E2 synchronously rotates, the left conveying belt rotating shaft E2 synchronously drives the cloth piece supporting and conveying belt assembly F to rotate, the right conveying belt rotating shaft G2 rotates in a follow-up mode, and the cloth piece supporting and conveying belt assembly F rotates left to right to fold and convey the cloth pieces.

Further: the bearing platform H comprises an upper top plate H1 and a top plate seat frame H2, wherein the back surface of the upper top plate H1 is welded or fixedly connected with the top of the top plate seat frame H2 by bolts, the top of the upper top plate H1 is flat, preferably horizontally arranged, and the front end and the rear end of the top plate seat frame H2 are fixedly connected with the inner wall bodies of the corresponding front side frame B and the corresponding rear side frame C by screws; the upper top plate H1 is rectangular, and has the length of 30 cm-65 cm and the width of 30 cm-50 cm; the top surface of the upper top plate H1 is adjacent to the opposite side of the upper belt assembly F1 but is not in contact with the upper belt assembly F1; when the flat cloth pressing plate device I is pressed down, the cloth piece stack is pressed down, the upper layer belt assembly F1 has certain elasticity, the upper layer belt assembly F1 is pressed on the top surface of the upper top plate H1, and the cloth piece stack is pressed on the top of the upper layer belt assembly F1, so that the upper layer belt assembly F1 and the cloth piece stack are clamped between the flat cloth pressing plate device I and the upper top plate H1; this is a specific structure and connection structure of the support platform H, which is stable and firm in connection.

Further: the cloth detection sensor K comprises a light-sensitive emitter K1 and a light-sensitive reflector K2, wherein the light-sensitive emitter K1 is connected with the controller A through a data line, the light-sensitive emitter K1 is fixedly connected to the front side rack B and/or the rear side rack C through a bracket and a screw and is positioned above the upper layer belt component F1, and the emitter of the light-sensitive emitter K1 faces downwards; the light-sensitive reflector K2 is fixedly connected to the front side frame B by a bracket and a screw, the light-sensitive reflector K2 stretches into the middle layer space F2, the light-sensitive emitter K1 vertically corresponds to the light-sensitive reflector K2, and light-sensitive transmission is carried out between the light-sensitive emitter K1 and the light-sensitive reflector K2 through a hollowed-out gap F4; normally, the light sensing signal emitted by the light sensing emitter K1 is reflected back to the light sensing emitter K1 through the light sensing reflector K2 and is a cloth-free touch signal; when the cloth pieces are conveyed from the top of the upper layer belt assembly F1 from left to right, the transmission signals of the cloth pieces are cut off by the front head of the cloth piece stack, the light-sensing signals of the light-sensing emitter K1 cannot be transmitted to the light-sensing reflector K2, the light-sensing reflector K2 cannot reflect the light-sensing signals, and the controller A regards that the cloth piece passing signals are captured through the cloth piece detection sensor K and regards that the cloth piece stack reaches the designated position; the specific installation structure and the component composition of the cloth piece detection sensor K are reasonable, and the detection is accurate; of course, the cloth detection sensor K may be an infrared sensor, a light sensor, a micro switch, a touch switch, or the like, and is not limited herein, so long as the detection function is realized.

Claims

1. The overturning and folding device of the cloth piece folding machine comprises a controller (A), a front side frame (B), a rear side frame (C), a motor transmission device (D), a left conveyor belt rotating shaft sleeving device (E), a cloth piece bearing conveyor belt assembly (F) and a right conveyor belt rotating shaft sleeving device (G), wherein the motor transmission device (D) is connected with the left conveyor belt rotating shaft sleeving device (E), and the controller (A) is connected with the motor transmission device (D) through an electric wire; the left conveyor belt rotating shaft sleeve device (E) and the right conveyor belt rotating shaft sleeve device (G) are sleeved with a cloth piece supporting conveyor belt assembly (F), an upper layer belt assembly (F1) and a lower layer belt assembly (F3) are formed, a middle layer space (F2) is formed between the upper layer belt assembly (F1) and the lower layer belt assembly (F3), and a hollowed-out gap (F4) is formed between the conveyor belts of the cloth piece supporting conveyor belt assembly (F), and the device is characterized in that: a bearing platform (H), a cloth flat pressing plate device (I), a pressing plate lifting cylinder device (J), a cloth detection sensor (K) and a first pressing bar turnover device (L) with a first turnover pressing bar (L1) are arranged between the middle sections of the front side rack (B) and the rear side rack (C); at least two first overturning pressing strips (L1) are arranged; the width of the first overturning pressing strip (L1) is smaller than the width of the hollowed-out gap (F4);

The bearing platform (H) is positioned at the middle section of the cloth piece bearing conveyor belt assembly (F), transversely arranged in the middle layer space (F2), and fixedly connected with the wall bodies of the corresponding front side rack (B) and the corresponding rear side rack (C), wherein the top surface of the bearing platform (H) is close to the back surface of the upper layer belt assembly (F1);

the outer side of the cloth piece flat pressing plate device (I) is fixedly connected with the top of the pressing plate lifting cylinder device (J), and the pressing plate lifting cylinder device (J) is used for driving the cloth piece flat pressing plate device (I) to lift, transversely and forwards and backwards open and fold; the flat cloth pressing plate device (I) is arranged above the middle section of the upper layer belt assembly (F1) and vertically corresponds to the bearing platform (H); after the flat pressing plate device (I) of the cloth piece is driven to lift by the pressing plate lifting cylinder device (J), the cloth piece can be conveyed from the top of the upper layer belt assembly (F1); after the flat pressing plate device (I) of the cloth piece is driven to descend by the pressing plate lifting cylinder device (J), the cloth piece is clamped between the supporting platform (H) and the flat pressing plate device (I) of the cloth piece to wait for folding;

the cloth piece detection sensor (K) is positioned behind the supporting platform (H) and the cloth piece flat pressing plate device (I) and is used for detecting whether the cloth piece stack reaches a designated position or not; the cloth detection sensor (K) is connected with the controller (A) through a data line; the work of the pressing plate lifting cylinder device (J) and the first pressing bar overturning device (L) is controlled by the controller (A);

The first press strip overturning device (L) is close to the bearing platform (H), the first overturning press strip (L1) and the first press strip overturning device (L) transversely penetrate through the middle layer space (F2), the first overturning press strips (L1) and the cloth piece bearing conveyor belt assembly (F) are arranged in the same direction, each first overturning press strip (L1) corresponds to the hollow gaps (F4) in different rows vertically and centrally, the first press strip overturning device (L) is used for driving the first overturning press strips (L1) to overturn from bottom to top through the hollow gaps (F4) to fold the overturning cloth pieces, and the hollow gaps (F4) provide overturning spaces for the first overturning press strips (L1).

2. The roll-over folding apparatus of a sheet folding machine of claim 1, wherein: a second pressing strip overturning device (M) with a second overturning pressing strip (M1) is arranged between the middle sections of the front side frame (B) and the rear side frame (C); at least two second overturning pressing strips (M1) are arranged; the width of the second overturning pressing strip (M1) is smaller than the width of the hollowed-out gap (F4);

the cloth flat pressing plate device (I) comprises a front flat pressing plate (I1) and a rear flat pressing plate (I2), wherein the front flat pressing plate (I1) and the rear flat pressing plate (I2) are arranged in a front-back equal-height symmetrical mode and are arranged in opposite directions; the outer sides of the front flat pressing plate (I1) and the rear flat pressing plate (I2) are fixedly connected with the top of a pressing plate lifting cylinder device (J), and the pressing plate lifting cylinder device (J) is used for driving the front flat pressing plate (I1) and the rear flat pressing plate (I2) to synchronously lift, transversely and forwards expand and fold;

The front flat pressing plate (I1) and the rear flat pressing plate (I2) are fixedly connected with corresponding front top cylinder supports (N) and rear top cylinder supports (O), the front top cylinder supports (N) and the rear top cylinder supports (O) are fixedly connected with front top cylinders (N1) and rear top cylinders (O1) which are correspondingly arranged obliquely downwards to the right, the front top cylinders (N1) and the rear top cylinders (O1) are connected with top cylinder control valves (NO) through air pipes, the top cylinder control valves (NO) are connected with a controller (A) through electric wires, telescopic rod ends corresponding to the front top cylinders (N1) and the rear top cylinders (O1) are transversely fixedly connected with front auxiliary pressing rods (N2) and rear auxiliary pressing rods (O2), the front auxiliary pressing rods (N2) and the rear auxiliary pressing rods (O2) are symmetrically arranged in opposite directions, and the front auxiliary pressing rods (N2) and the rear auxiliary pressing rods (O2) are located above the right edges of the corresponding front flat pressing plates (I1) and rear flat pressing plates (I2);

the first pressing strip overturning device (L) is positioned near the left side of the supporting platform (H), and the second pressing strip overturning device (M) is positioned near the right side of the supporting platform (H); the second overturning layering (M1) and the second layering overturning device (M) transversely penetrate through the middle layer space (F2), the second overturning layering (M1) and the cloth piece supporting and conveying belt assembly (F) are arranged in the same direction, each second overturning layering (M1) corresponds to the hollow gaps (F4) in different rows in the middle, the second layering overturning device (M) is used for driving the second overturning layering (M1) to overturn from bottom to top through the hollow gaps (F4) so as to turn over and overturn the cloth piece to be folded, and the hollow gaps (F4) provide overturning space for the second overturning layering (M1);

The first overturning pressing strip (L) drives the first overturning pressing strip (L1) to overturn clockwise, the second overturning pressing strip (M1) is driven by the second overturning pressing strip (M1) to overturn anticlockwise, and the second overturning pressing strip (M1) is matched with the front auxiliary pressing rod (N2) and the rear auxiliary pressing rod (O2) for use, so that left and right side overturning folding cloth clamping sheets are realized; the front auxiliary pressing rod (N2) and the rear auxiliary pressing rod (O2) are shorter than the lengths of the corresponding front flat pressing plate (I1) and rear flat pressing plate (I2).

3. The roll-over folding apparatus of a sheet folding machine according to claim 2, wherein: the first pressing strip overturning device (L) at least comprises a first front rotating shaft supporting seat (L2), a first overturning shaft (L3), a first rotating shaft gear (L4), a first rack device (L5), a first overturning cylinder (L6), a first rear rotating shaft supporting seat (L7) and a first cylinder air source control valve (L8), wherein the first cylinder air source control valve (L8) is connected with the controller (A) through wires, and the first overturning pressing strips (L1) are fixedly connected to the first overturning shaft (L3) in the same arrangement; the first front rotating shaft supporting seat (L2) is arranged close to the front side frame (B), the first rear rotating shaft supporting seat (L7) is arranged close to the rear side frame (C), the front end and the rear end of the first rotating shaft (L3) movably cross the tops of the first front rotating shaft supporting seat (L2) and the first rear rotating shaft supporting seat (L7), a first rotating shaft gear (L4) is fixedly connected to the front end of the first rotating shaft (L3) in a penetrating way, the gear of the first rotating shaft gear (L4) is in toothed engagement connection with the gear stage of the first rack device (L5), and the first rack device (L5) is fixedly connected with the telescopic rod end of the first rotating cylinder (L6); the telescopic rod of the first overturning cylinder (L6) is used for driving the first rack device (L5), the first rotating shaft gear (L4) and the first overturning shaft (L3) to move in an extending way, so that the first overturning pressing strip (L1) overturns, folds and presses the cloth piece towards the top of the cloth piece flat pressing plate device (I); the first turnover shaft (L3) is positioned near the left side of the bearing platform (H); the first front rotating shaft supporting seat (L2) is fixedly connected with the first overturning cylinder (L6);

The second pressing strip overturning device (M) at least comprises a second front rotating shaft supporting seat (M2), a second overturning shaft (M3), a second rotating shaft gear (M4), a second rack device (M5), a second overturning cylinder (M6), a second rear rotating shaft supporting seat (M7) and a second cylinder air source control valve (M8), wherein the second cylinder air source control valve (M8) is connected with the controller (A) through wires, and the second overturning pressing strips (M1) are fixedly connected to the second overturning shaft (M3) in the same arrangement; the second front rotating shaft supporting seat (M2) is arranged close to the front side frame (B), the second rear rotating shaft supporting seat (M7) is arranged close to the rear side frame (C), the front end and the rear end of the second rotating shaft (M3) movably cross the tops of the second front rotating shaft supporting seat (M2) and the second rear rotating shaft supporting seat (M7), a second rotating shaft gear (M4) is fixedly connected to the front end of the second rotating shaft (M3) in a penetrating way, the gear of the second rotating shaft gear (M4) is in toothed engagement connection with the gear stage of the second rack device (M5), and the second rack device (M5) is fixedly connected with the telescopic rod end of the second rotating cylinder (M6); the second overturning pressing strip (M1) overturns, folds and presses the cloth piece towards the top of the cloth piece flat pressing plate device (I) by driving the second rack device (M5), the second rotating shaft gear (M4) and the second overturning shaft (M3) to move through the telescopic rod of the second overturning cylinder (M6); the first turnover shaft (L3) is positioned near the right of the bearing platform (H); the first turnover shaft (L3) and the second turnover shaft (M3) rotate in a clockwise and anticlockwise direction; the second front rotating shaft supporting seat (M2) is fixedly connected with a second overturning cylinder (M6).

4. A roll-over folding apparatus of a sheet folding machine as defined in claim 3, wherein: the first front rotating shaft supporting seat (L2), the first rear rotating shaft supporting seat (L7), the second front rotating shaft supporting seat (M2) and the second rear rotating shaft supporting seat (M7) are jointly and movably connected with a turnover shaft distance adjusting device (P);

the overturning shaft interval adjusting device (P) comprises an interval adjusting hand wheel (P1), a main interval rotating adjusting shaft (P2), a main shaft front conical gear (P3), a main shaft front shaft seat (P4), a front cylinder interval adjusting threaded rod (P5), a front left conical gear (P6), a front left bearing seat (P7), a front right bearing seat (P8), a front positioning sliding device (P9), a main shaft rear conical gear (P10), a main shaft rear shaft seat (P11), a rear cylinder interval adjusting threaded rod (P12), a rear left conical gear (P13), a rear left bearing seat (P14), a rear right bearing seat (P15) and a rear positioning sliding device (P16);

the front shaft seat (P4), the front left bearing seat (P7) and the front right bearing seat (P8) of the main shaft are fixedly connected with the front side frame (B), and the rear shaft seat (P11), the rear left bearing seat (P14) and the rear right bearing seat (P15) of the main shaft are fixedly connected with the rear side frame (C);

the space adjusting hand wheel (P1) is fixedly connected to the front end of the main space rotating adjusting shaft (P2), and shaft bodies at the front end and the rear end of the main space rotating adjusting shaft (P2) just can cross through the corresponding main shaft front shaft seat (P4) and the main shaft rear shaft seat (P11) and form movable connection with the main shaft front shaft seat and the main shaft rear shaft seat; the spindle bodies at the front end and the rear end of the main interval rotation adjusting shaft (P2) are fixedly connected with a corresponding spindle front conical gear (P3) and a spindle rear conical gear (P10) in a penetrating way;

The left and right end section rod bodies of the front cylinder space adjusting threaded rod (P5) can just cross through the corresponding front left bearing seat (P7) and front right bearing seat (P8) and form movable connection with the front left bearing seat and the front right bearing seat; the first front rotating shaft supporting seat (L2) is in forward threaded connection with the front cylinder space adjusting threaded rod (P5), and the second front rotating shaft supporting seat (M2) is in reverse threaded connection with the front cylinder space adjusting threaded rod (P5); the front conical gear (P3) of the main shaft is in meshing connection with the front left conical gear (P6); the bottoms of the front left bearing seat (P7) and the front right bearing seat (P8) are connected to the sliding part of the front positioning sliding device (P9) in a sliding manner, and the fixed part of the front positioning sliding device (P9) is fixedly connected to the front side frame (B);

the left and right end section rod bodies of the rear cylinder interval adjusting threaded rod (P12) can just cross through the corresponding rear left bearing seat (P14) and rear right bearing seat (P15) and form movable connection with the rear left bearing seat and the rear right bearing seat; the first rear rotating shaft supporting seat (L7) is in forward threaded connection with the rear cylinder space adjusting threaded rod (P12), and the second rear rotating shaft supporting seat (M7) is in reverse threaded connection with the rear cylinder space adjusting threaded rod (P12); the main shaft rear conical gear (P10) is in meshing connection with the rear left conical gear (P13); the bottoms of the rear left bearing seat (P14) and the rear right bearing seat (P15) are connected to the sliding part of the rear positioning sliding device (P16) in a sliding manner, and the fixed part of the rear positioning sliding device (P16) is fixedly connected to the rear side frame (C).

5. The roll-over folding apparatus of a sheet folding machine according to claim 2, wherein: a cloth stack flattening and emptying device (Q) which is lifted up and down is arranged above the cloth sheet flat pressing plate device (I), and after the cloth sheets are turned and folded, the cloth sheet stack is pressed down by the cloth stack flattening and emptying device (Q) to be emptied and flattened; the cloth stack flattening and emptying device (Q) is arranged between the front side frame (B) and the rear side frame (C) and is positioned above the upper layer belt assembly (F1).

6. The roll-over folding apparatus of a sheet folding machine of claim 5, wherein: the cloth stacking flattening and emptying device (Q) comprises a cloth stacking plate frame (Q1), a lever frame (Q2), a lever foundation shaft (Q3), a longitudinal lifting cylinder (Q4) and a longitudinal cylinder air source control valve (Q5), wherein the longitudinal lifting cylinder (Q4) is connected with the longitudinal cylinder air source control valve (Q5) through an air pipe, the longitudinal cylinder air source control valve (Q5) is connected with a controller (A) through an electric wire, the top of the cloth stacking plate frame (Q1) is movably connected with the tail end of the lever frame (Q2), the middle and rear section of the lever frame (Q2) movably traverses the lever foundation shaft (Q3), and the front end of the lever frame (Q2) is movably connected with a telescopic rod of the longitudinal lifting cylinder (Q4); the vertical lifting cylinder (Q4) pushes and pulls one end of the lever frame (Q2) to lift through the telescopic rod of the vertical lifting cylinder to enable the other end to lift, and the cloth folding plate frame (Q1) lifts along with the tail end of the lever frame (Q2) to fall into a state that the cloth folding plate is tightly clung to fold and empty.

7. The roll-over folding apparatus of a sheet folding machine according to claim 2, wherein: the pressing plate lifting cylinder device (J) comprises a cylinder chassis (J1), a pressing plate lifting cylinder (J2), a pressing plate cylinder air source control valve (J3), a public lifting cross beam (J4), a front transverse telescopic cylinder (J5), a front lifting vertical frame (J6), a rear transverse telescopic cylinder (J7), a rear lifting vertical frame (J8) and a cross beam cylinder air source control valve (J9);

the front end and the rear end of the cylinder chassis (J1) are fixedly connected with the corresponding front side frame (B) and rear side frame (C), the cylinder chassis (J1) is vertically and fixedly connected with a pressing plate lifting cylinder (J2), the pressing plate lifting cylinder (J2) is connected with a pressing plate cylinder air source control valve (J3) through an air pipe, the pressing plate cylinder air source control valve (J3) is connected with a controller (A) through an electric wire, the top telescopic rod end of the pressing plate lifting cylinder (J2) is fixedly connected with a public lifting cross beam (J4), the top of the public lifting cross beam (J4) is fixedly connected with a front transverse telescopic cylinder (J5) and a rear transverse telescopic cylinder (J7), the telescopic rods of the front transverse telescopic cylinder (J5) and the rear transverse telescopic cylinder (J7) are arranged in a back-to-back mode, and the telescopic rods of the rear transverse telescopic cylinder (J7) are telescopic; the front transverse telescopic cylinder (J5) and the rear transverse telescopic cylinder (J7) are connected with a beam cylinder air source control valve (J9) through air pipes, and the beam cylinder air source control valve (J9) is connected with the controller (A) through electric wires;

The telescopic rod end of the front transverse telescopic cylinder (J5) is fixedly connected with the bottom of the front lifting vertical frame (J6), and the top of the front lifting vertical frame (J6) is fixedly connected with the outer side of the front flat pressing plate (I1); the telescopic rod end of the rear transverse telescopic cylinder (J7) is fixedly connected with the bottom of the rear lifting vertical frame (J8), and the top of the rear lifting vertical frame (J8) is fixedly connected with the outer side of the rear flat pressing plate (I2); the front lifting vertical frame (J6) and the rear lifting vertical frame (J8) are arranged on the corresponding front and rear outer sides of the cloth piece supporting conveyor belt assembly (F).

8. The roll-over folding apparatus of a sheet folding machine of claim 1, wherein: the right section of the cloth piece supporting conveyor belt assembly (F) is provided with a cloth piece stacking compression device (R); the cloth piece stacking compression device (R) comprises a front side wall plate frame (R1), a rear side wall plate frame (R2), a bearing flat plate device (R3), an air cylinder portal frame (R4), a cloth stacking compression air cylinder (R5), a cloth stacking compression plate (R6), a cloth piece detection signal sensor (R7) and a compression air cylinder air source control valve (R8), wherein the cloth stacking compression air cylinder (R5) is connected with the compression air cylinder air source control valve (R8) through an air pipe, and the compression air cylinder air source control valve (R8) is connected with the controller (A) through an electric wire;

the front side wall plate frame (R1) and the rear side wall plate frame (R2) are arranged at the front and rear outer sides corresponding to the cloth piece supporting conveyor belt assembly (F); the front side wall plate frame (R1) and the rear side wall plate frame (R2) are fixedly connected with a bearing flat plate device (R3), the bearing flat plate device (R3) is transversely connected with the middle layer space (F2) in a crossing way, and the top plate surface of the bearing flat plate device is close to the back surface of the upper layer belt component (F1); front side wall grillage (R1), back side wall grillage (R2) between fixed connection cylinder portal frame (R4), vertical fixedly connected with cloth in cylinder portal frame (R4) middle part is folded compression cylinder (R5), flexible rod end fixed connection cloth in the bottom of cloth is folded compression cylinder (R5) is folded compression board (R6), the middle part outside fixedly connected with cloth piece detection signal sensor (R7) of cylinder portal frame (R4), cloth piece detection signal sensor (R7) are through data line connection director (A), cloth piece detection signal sensor (R7) detects the cloth piece of follow cloth piece bearing conveyer belt subassembly (F) output downwards.

9. The roll-over folding apparatus of a sheet folding machine of claim 8, wherein: the right-hand member fixedly connected with right side frame (S) of preceding side frame (B), rear side frame (C), right side frame (S) and preceding lateral wall grillage (R1), rear lateral wall grillage (R2) fixed connection, have seted up in right side frame (S) and have worn out foraminiferous (S1), cloth piece bearing conveyer belt subassembly (F) right section is worn out outside from wearing foraminiferous (S1).

10. The roll-over folding apparatus of a sheet folding machine of claim 1, wherein: the left front outer side of the left section of the upper layer belt component (F1) is provided with a left front cloth piece deviation correcting cylinder (T), a left front deviation correcting push plate (T1) is fixed at the telescopic rod end of the left front cloth piece deviation correcting cylinder (T), and the bottom edge of the left front deviation correcting push plate (T1) is slightly higher than the upper layer belt component (F1) and is not contacted with the upper layer belt component (F1);

a right front cloth piece deviation rectifying cylinder (U) is arranged on the front outer side of the right section of the upper layer belt assembly (F1), a right front deviation rectifying push plate (U1) is fixed on the telescopic rod end of the right front cloth piece deviation rectifying cylinder (U), and the bottom edge of the right front deviation rectifying push plate (U1) is slightly higher than the upper layer belt assembly (F1) and is not in contact with the upper layer belt assembly (F1);

the left front cloth piece deviation correcting cylinder (T) and the right front cloth piece deviation correcting cylinder (U) are fixed on the front side frame (B);

A left rear cloth piece deviation correcting cylinder (V) is arranged on the rear outer side of the left section of the upper layer belt assembly (F1), a left rear deviation correcting push plate (V1) is fixed on the telescopic rod end of the left rear cloth piece deviation correcting cylinder (V), and the bottom edge of the left rear deviation correcting push plate (V1) is slightly higher than the upper layer belt assembly (F1) and is not in contact with the upper layer belt assembly (F1);

a right rear cloth piece deviation correcting cylinder (W) is arranged on the rear outer side of the right section of the upper layer belt assembly (F1), a right rear deviation correcting push plate (W1) is fixed on the telescopic rod end of the right rear cloth piece deviation correcting cylinder (W), and the bottom edge of the right rear deviation correcting push plate (W1) is slightly higher than the upper layer belt assembly (F1) and is not in contact with the upper layer belt assembly (F1);

the left rear cloth piece deviation correcting cylinder (V) and the right rear cloth piece deviation correcting cylinder (W) are fixed on the rear side frame (C);

the left front cloth piece deviation correcting cylinder (T), the right front cloth piece deviation correcting cylinder (U), the left rear cloth piece deviation correcting cylinder (V) and the right rear cloth piece deviation correcting cylinder (W) are connected with the same deviation correcting air source control valve (X) through air pipes, and the deviation correcting air source control valve (X) is connected with the controller (A) through electric wires.