CN211769376U

CN211769376U - Sheet material conveying device

Info

Publication number: CN211769376U
Application number: CN201922500330.8U
Authority: CN
Inventors: 赵刚; 胡访玉; 沈涛
Original assignee: ZHEJIANG HENGLI CNC TECHNOLOGY CO LTD
Current assignee: ZHEJIANG HENGLI CNC TECHNOLOGY CO LTD
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-27
Anticipated expiration: 2029-12-31

Abstract

The utility model belongs to the technical field of material feeding unit, a sheet material conveyor is related to. The automatic conveying device comprises a base, be equipped with the crane on the base, crane one end articulates on the base, there is lifting unit between the other end and the base, be equipped with two at least sideslip framves along transverse distribution on the crane, two support arms of every sideslip frame link to each other with the crane through sideslip mechanism, be equipped with the pay-off frame on the sideslip frame, the pay-off frame links to each other with the sideslip frame through indulging the mechanism that moves, be equipped with between pay-off frame and sideslip frame and be annular conveyer belt, a conveyer belt pot head is established at the first from the driving wheel of pay-off frame front end, another pot head is established on the action wheel that is located the pay-off frame rear end, the action wheel passes through the cantilever type fixed knot and links to each other with the sideslip frame, the cover. Compared with the prior art, the plate conveying device has the advantages that: reasonable in design, the maintenance of being convenient for.

Description

Sheet material conveying device

Technical Field

The utility model belongs to the technical field of material feeding unit, a sheet material conveyor is related to.

Background

The plate conveying device is applied to a coil opening and blanking line, a pendulum shear line and the like, is arranged between a press (or a pendulum shear and the like) and a stacker, and has the function of conveying plates between the press (or the pendulum shear and the like). The size, shape, material and other working conditions of the conveyed plates are different, the conveying speed also directly influences the yield, and various factors require the machine to have higher universality. The material of the connected plate has sharp edges, and the material has larger speed difference to form a cutting effect; although the belt is made of wear-resistant and cutting-resistant materials, the service life of the belt is still greatly influenced by working conditions and is uncertain.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a sheet material conveyor of reasonable in design, the maintenance of being convenient for.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the sheet material conveying device is characterized by comprising a base, wherein a lifting frame is arranged on the base, one end of the lifting frame is hinged to the base, a lifting assembly is arranged between the other end of the lifting frame and the base, at least two transverse moving frames which are distributed along the transverse direction are arranged on the lifting frame, two supporting arms of each transverse moving frame are connected with the lifting frame through a transverse moving mechanism, a feeding frame is arranged on each transverse moving frame, the feeding frame is connected with the transverse moving frames through a longitudinal moving mechanism, an annular conveying belt is arranged between the feeding frame and the transverse moving frames, one end of the conveying belt is sleeved on a first driven wheel at the front end of the feeding frame, the other end of the conveying belt is sleeved on a driving wheel at the rear end of the feeding frame, the driving wheel is connected with the transverse moving frames through a cantilever type fixing structure, the lower part of the conveying belt is sleeved on a second driven wheel, the second driven wheel is arranged on the feeding frame, the conveying belt is further sleeved on a third driven wheel which is located between the second driven wheel and the driving wheel and arranged at the bottom of the rear end of the feeding frame, a driving shaft which is transversely arranged is arranged at the rear end of the transverse moving frame, two ends of the driving shaft are respectively connected with the lifting frame through driving shaft seats, one end of the driving shaft is connected with a driving shaft driver, and the driving shaft is connected with the driving shaft seats and the driving shaft driver through a quick assembling and disassembling structure.

In the plate conveying device, the quick dismounting structure comprises a plug-in type coupler connected with an output shaft of a driving shaft driver, the driving shaft driver is fixed on a driving shaft seat through the plug-in type coupler, one end of the driving shaft is plugged in the plug-in type coupler, a driving shaft bearing is arranged between the driving shaft seat and the end part of the driving shaft, a flange is arranged on the other end of the driving shaft, the flange is connected with the driving shaft seat through four bolts, and the inner end of the flange is abutted against the outer ring of the driving shaft bearing at the end.

In the plate conveying device, a first U-shaped groove is formed in a drive shaft seat located at one end of the flange, a drive shaft bearing seat is arranged in the first U-shaped groove, the drive shaft bearing seat is connected with the drive shaft seat through at least four bolts, the other end of the drive shaft penetrates through the drive shaft bearing seat, a drive shaft bearing is arranged between the drive shaft bearing seat and the drive shaft, and the flange is connected with the drive shaft bearing seat through four bolts.

In the plate conveying device, second U-shaped grooves are formed in two sides of the front end of the feeding frame, two ends of the first driven wheel are respectively arranged in the second U-shaped grooves and fixed through a first fixing piece, and the first fixing piece is fixed on the feeding frame through two bolts; the third driven wheel is fixed at the bottom of the rear end of the feeding frame through a third driven wheel seat; the second driven wheel is arranged on a second driven wheel seat, two sides of the second driven wheel seat are provided with a second fixing piece, two ends of the second driven wheel seat are used for installing the second driven wheel and are respectively arranged in a third U-shaped groove to be fixed through the second fixing piece, and the second driven wheel seat is fixed on the feeding frame; the supporting arm is longitudinally provided with a through hole for passing through the conveying belt in a penetrating way.

In the above-mentioned sheet material conveying device, the cantilever type fixing structure includes a cantilever side plate fixed on the traversing rack, the driving shaft penetrates the cantilever side plate, a shaft sleeve positioned at the inner side of the cantilever side plate is arranged between the cantilever side plate and the driving shaft, the shaft sleeve is connected with the driving shaft through a key structure, a driving wheel bearing seat is arranged between the outer end of the shaft sleeve and the cantilever side plate, two driving wheel bearings are arranged between the driving wheel bearing seat and the shaft sleeve, an inner ring of the driving wheel bearing positioned at the inner end is abutted against the annular bulge of the shaft sleeve, an inner ring end cover and an outer ring end cover are arranged at the outer end of the driving wheel bearing at the outer end, the driving wheel is sleeved at the inner end of the shaft sleeve and is fixed on the shaft sleeve through a tensioning sleeve, the driving wheel is provided with an annular inner step at one end of the cantilever side plate, and the annular inner step is sleeved on the periphery of the driving wheel bearing seat and is not in contact with the driving wheel bearing seat.

In the plate conveying device, the annular inner step is internally provided with the isolation convex ring, the isolation convex ring is connected with the driving wheel into an integral structure, and the isolation convex ring is abutted against the annular bulge.

In the plate conveying device, the lifting assembly comprises two transversely symmetrical electric cylinders, the bottoms of the electric cylinders are hinged to the base, the output ends of the electric cylinders are abutted against the bottom of the lifting frame, a lifting driving motor is arranged between the two electric cylinders, a lifting commutator is arranged on an output shaft of the lifting driving motor, and two ends of the lifting commutator are respectively connected with the two electric cylinders through two lifting connecting shafts.

In the above plate conveying device, the traverse mechanism includes traverse slide rails respectively transversely disposed at two ends of the top surface of the lifting frame, traverse slide blocks capable of being matched with the traverse slide rails are respectively disposed at two ends of the bottom surface of the traverse frame, a rack parallel to the traverse slide rails and fixed on the lifting frame is disposed at the outer side of each traverse slide rail, a gear is disposed on the rack, the two gears are connected through a traverse shaft, the traverse shaft is mounted on the bottom surface of the traverse frame through a traverse shaft seat, a traverse driving motor is disposed at one end of the traverse shaft, and the traverse driving motor is connected with the traverse shaft through a traverse commutator.

In the plate conveying device, the longitudinal moving mechanism comprises a longitudinal moving slide rail which is longitudinally arranged, the bottom of each support arm is connected with the longitudinal moving slide rail through a longitudinal moving slide block, screw rods penetrate through the two support arms, screw sleeves are arranged between the support arms and the screw rods, two ends of each screw rod are respectively connected with the transverse moving frame through screw rod seats, and one end of each screw rod is connected with the longitudinal moving driving motor.

In the plate conveying device, the front end of the feeding frame is provided with an anti-collision baffle, the lower end of the anti-collision baffle is connected with the feeding frame through two anti-collision shafts, the anti-collision shafts penetrate through the feeding frame, and springs positioned between the anti-collision baffle and the feeding frame are sleeved on the anti-collision shafts; the front end of the feeding frame is also provided with a material sucking structure.

Compared with the prior art, the plate conveying device has the advantages that: 1. reasonable in design, the maintenance of being convenient for. 2. The main shaft can be drawn out only by disassembling the shaft end flange, and the main belt wheel is not required to be disassembled when the belt is replaced. 3. The adaptability is good, can be applicable to the transport of different specification panels.

Drawings

Fig. 1 is a schematic view of a partial cross-sectional structure provided by the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an enlarged schematic view of a portion B in fig. 1.

Fig. 4 is a left side view structure diagram of the present invention.

Fig. 5 is a schematic view of the structure in a top view.

Fig. 6-8 are schematic diagrams illustrating the installation process of the conveyor belt provided by the present invention.

In the figure, a base 1, a lifting frame 2, a lifting component 10, a transverse moving frame 3, a supporting arm 31, a feeding frame 5, a transverse moving mechanism 4, a longitudinal moving mechanism 6, a conveying belt 7, a first driven wheel 71, a driving wheel 72, a second driven wheel 73, a third driven wheel 74, a driving shaft 9, a cantilever type fixing structure 8, a driving shaft seat 92, a driving shaft driver 93, a connecting type coupler 94, a driving shaft bearing 95, a flange 96, a first U-shaped groove 921, a driving shaft bearing seat 922, a second U-shaped groove 51, a first fixing sheet 52, a third driven wheel seat 741, a second driven wheel seat 731, a through hole 311, a third U-shaped groove 732, a second fixing sheet 733, a cleaning brush 731a, a second auxiliary driven wheel seat 922 b, a cantilever side plate 81, a shaft sleeve 82, a driving wheel bearing seat 83, an annular bulge 84, a tensioning sleeve 85, an annular inner step 86, an isolation convex ring 87, an electric cylinder 101, a lifting driving motor 102, The lifting connecting shaft 104, the transverse moving slide rail 41, the transverse moving slide block 42, the rack 43, the gear 44, the transverse moving shaft 45, the transverse moving shaft seat 46, the transverse moving drive motor 47, the longitudinal moving slide rail 61, the longitudinal moving slide block 62, the screw 63, the screw seat 64, the longitudinal moving drive motor 65, the anti-collision baffle 53, the spring 55, the anti-collision shaft 54 and the material suction structure 56.

Detailed Description

As shown in fig. 1-8, the plate conveying device comprises a base 1, a lifting frame 2 is arranged on the base 1, one end of the lifting frame 2 is hinged on an elevated seat of the base 1 through a hinged seat, a lifting component 10 is arranged between the other end and the base 1, at least two transverse moving frames 3 distributed along the transverse direction are arranged on the lifting frame 2, two supporting arms 31 of each transverse moving frame 3 are connected with the lifting frame 2 through a transverse moving mechanism 4, a feeding frame 5 is arranged on the transverse moving frames 3, the feeding frame 5 is connected with the transverse moving frames 3 through a longitudinal moving mechanism 6, an annular conveying belt 7 is arranged between the feeding frame 5 and the transverse moving frames 3, one end of the conveying belt 7 is sleeved on a first driven wheel 71 at the front end of the feeding frame 5, the other end is sleeved on a driving wheel 72 at the rear end of the feeding frame 5, the driving wheel 72 is connected with the transverse moving frames 3 through a cantilever type fixing structure 8, the lower part of, the second is followed driving wheel 73 and is set up on being located the pay-off frame 5 between driving wheel 72 and the first driven wheel 71, conveyer belt 7 still overlaps to be located the second and follows between driving wheel 73 and the driving wheel 72 and set up on the third driven wheel 74 of pay-off frame 5 rear end bottom, be equipped with the drive shaft 9 of horizontal setting on the sideslip frame 3 rear end, drive shaft 9 both ends link to each other with crane 2 through drive axle bed 92 respectively, drive shaft 9 one end links to each other with drive shaft driver 93, drive shaft 9 links to each other with drive axle bed 92 and drive shaft driver 93 through quick assembly disassembly structure.

More specifically, the quick-dismounting structure comprises a plug-in coupling 94 connected with an output shaft of a driving shaft driver 93, the driving shaft driver 93 is fixed on a driving shaft seat 92 through the plug-in coupling 94, one end of a driving shaft 9 is plugged in the plug-in coupling 94, driving shaft bearings 95 are arranged between the driving shaft seat 92 and the end portion of the driving shaft 9, a flange 96 is arranged at the other end of the driving shaft 9, the flange 96 is connected with the driving shaft seat 92 through four bolts, and the inner end of the flange abuts against the outer ring of the driving shaft bearing 95 at the end.

The driving shaft seat 92 located at one end of the flange 96 is provided with a first U-shaped groove 921, a driving shaft bearing seat 922 is arranged in the first U-shaped groove 921, the driving shaft bearing seat 922 is connected with the driving shaft seat 92 through at least four bolts, the other end of the driving shaft 9 penetrates through the driving shaft bearing seat 922, the driving shaft bearing 95 is arranged between the driving shaft bearing seat 922 and the driving shaft 9, and the flange 96 is connected with the driving shaft bearing seat 922 through four bolts.

Because the front end of the feeding frame 5 is closed, the two sides of the front end of the feeding frame 5 are provided with second U-shaped grooves 51, the two ends of the first driven wheel 71 are respectively arranged in the second U-shaped grooves 51 and are fixed through the first fixing sheet 52, and the first fixing sheet 52 is fixed on the feeding frame 5 through two bolts; the third driven wheel 74 is fixed at the bottom of the rear end of the feeding frame 5 through a third driven wheel seat 741; the second driven wheel 73 is arranged on the second driven wheel seat 731, and the second driven wheel seat 731 is fixed on the feeding frame 5; a through hole 311 for passing through the conveyor belt 7 is longitudinally arranged on the supporting arm 31 in a penetrating way; two sides of the second driven wheel seat 731 are opened for installing the second driven wheel 73, and two ends of the second driven wheel are respectively arranged in the third U-shaped groove 732 and fixed by a second fixing piece 733.

A cleaning brush 731a is further arranged on the second driven wheel seat 731, and a second auxiliary driven wheel 731b is further arranged on one end, close to the driving wheel 72, of the second driven wheel seat 731; the first driven wheel 71 includes a wheel shaft, a wheel body is provided on the wheel shaft sleeve, a wheel body bearing is provided between the wheel body and the wheel shaft, and the second driven wheel 73 and the third driven wheel 74 are identical in structure to the first driven wheel 71.

In order to improve the convenience of disassembling and assembling the belt, the cantilever type fixing structure 8 comprises a cantilever side plate 81 fixed on the traversing frame 3, the driving shaft 9 penetrates through the cantilever side plate 81, a shaft sleeve 82 positioned at the inner side of the cantilever side plate 81 is arranged between the cantilever side plate 81 and the driving shaft 9, the shaft sleeve 82 is connected with the driving shaft 9 through a key structure, the driving shaft 9 is connected through the key structure of the shaft sleeve 82 so as to carry out circumferential limit and can move axially, a driving wheel bearing seat 83 is arranged between the outer end of the shaft sleeve 82 and the cantilever side plate 81, two driving wheel bearings are arranged between the driving wheel bearing seat 83 and the shaft sleeve 82, an inner ring of the driving wheel bearing positioned at the inner end is abutted against an annular bulge 84 of the shaft sleeve 82, an inner ring end cover and an outer ring end cover are arranged at the outer end of the driving wheel bearing, the driving wheel 72 is sleeved at the inner end of the shaft sleeve 82, the annular inner step 86 is fitted over the periphery of the drive pulley bearing seat 83 and does not contact therewith.

An isolation convex ring 87 is arranged in the annular inner step 86, the isolation convex ring 87 is connected with the driving wheel 72 into an integral structure, and the isolation convex ring 87 abuts against the annular bulge 84.

Because connect material highly differs, consequently need lifting unit 10, lifting unit 10 includes two horizontal symmetry's electronic jar 101, and electronic jar 101 bottom articulates on base 1, and electronic jar 101 output supports and leans on in crane 2 bottom, is equipped with lift driving motor 102 between two electronic jar 101, is equipped with lift commutator 103 on the lift driving motor 102 output shaft, and lift commutator 103 both ends link to each other with two electronic jar 101 through two lift even axles 104 respectively.

In order to convey plates of different specifications, the conveying width can be adjusted through the transverse moving mechanism 4, the transverse moving mechanism 4 comprises transverse moving slide rails 41 which are respectively and transversely arranged at two ends of the top surface of the lifting frame 2, transverse moving slide blocks 42 which can be matched with the transverse moving slide rails 41 are respectively arranged at two ends of the bottom surface of the transverse moving frame 3, a rack 43 which is parallel to the transverse moving slide rails 41 and is fixed on the lifting frame 2 is arranged on the outer side of each transverse moving slide rail 41, the transverse moving frame 3 shares one rack 43, a gear 44 is arranged on the rack 43, the two gears 44 are connected through a transverse moving shaft 45, the transverse moving shaft 45 is installed on the bottom surface of the transverse moving frame 3 through a transverse moving shaft seat 46, a transverse moving driving motor 47 is arranged at one end of the transverse moving. When the transverse moving rack is used, the transverse moving driving motor 47 drives the transverse moving shaft 45 to rotate, the transverse moving shaft 45 drives the gear 44 to rotate, and the gear 44 rolls on the rack 43 so as to drive the transverse moving rack 3 to transversely move.

In order to match different conveying lengths, the longitudinal moving mechanism 6 comprises a longitudinal moving slide rail 61 which is longitudinally arranged, the bottoms of the supporting arms 31 are connected with the longitudinal moving slide rail 61 through longitudinal moving slide blocks 62, screw rods 63 penetrate through the two supporting arms 31, screw sleeves are arranged between the supporting arms 31 and the screw rods 63, two ends of each screw rod 63 are respectively connected with the transverse moving frame 3 through screw rod seats 64, and one end of each screw rod 63 is connected with a longitudinal moving driving motor 65.

In order to prevent collision in the conveying process, the front end of the feeding frame 5 is provided with an anti-collision baffle 53, the lower end of the anti-collision baffle 53 is connected with the feeding frame 5 through two anti-collision shafts 54, the anti-collision shafts 54 penetrate through the feeding frame 5, and the anti-collision shafts 54 are sleeved with springs 55 positioned between the anti-collision baffle 53 and the feeding frame 5; the front end of the feeding frame 5 is also provided with a material sucking structure 56.

Preferably, the suction structure 56 comprises a vacuum suction box, a plurality of suction holes are arranged on the conveyor belt 7,

preferably, the wicking structure 56 includes a magnet.

In the process of replacing the belt, the flange is removed, the driving shaft 9 is drawn out, then the first driven wheel 71 and the second driven wheel 73 are respectively removed, the belt can be taken down, then when the belt is installed, the belt is firstly installed in the feeding rack 5 without the first driven wheel 71 and the driving wheel 72, at the moment, the first driven wheel 71 is fixed in place, then the belt passes through the two supporting arms 31 between the third driven wheel 74 and the driving wheel 72 and then reaches the second driven wheel seat 731 without the second driven wheel 73, after the belt is in place, the second driven wheel seat 731 is fixed, finally the driving shaft 9 is installed, and finally the flange is fixed.

Through the structure, the problem that a lot of structural parts are needed to be disassembled due to the fact that a belt is usually replaced is effectively avoided, and labor and time are wasted; or needs a professional belt dealer to bond the belt on site, thereby causing the problem of higher cost.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the base 1, the lifting frame 2, the lifting assembly 10, the traverse frame 3, the supporting arm 31, the feeding frame 5, the traverse mechanism 4, the traverse mechanism 6, the transmission belt 7, the first driven wheel 71, the driving wheel 72, the second driven wheel 73, the third driven wheel 74, the driving shaft 9, the cantilever-type fixing structure 8, the driving shaft seat 92, the driving shaft driver 93, the connecting coupling 94, the driving shaft bearing 95, the flange 96, the first U-shaped slot 921, the driving shaft bearing seat 922, the second U-shaped slot 51, the first fixing plate 52, the third driven wheel seat 741, the second driven wheel seat 731, the through hole 311, the third U-shaped slot 732, the second fixing plate 733, the cleaning brush 731a, the second driven wheel seat 731b, the cantilever side plate 81, the shaft sleeve 82, the driving wheel bearing seat 83, the annular protrusion 84, the tensioning sleeve 85, the annular inner step 86, the isolation ring 87, the electric cylinder 101, the lifting driving motor 102, the lifting motor, The terms of the lifting commutator 103, the lifting connecting shaft 104, the traverse slide rail 41, the traverse slide block 42, the rack 43, the gear 44, the traverse shaft 45, the traverse shaft seat 46, the traverse driving motor 47, the longitudinal slide rail 61, the longitudinal slide block 62, the screw 63, the screw seat 64, the longitudinal driving motor 65, the crash barrier 53, the spring 55, the crash shaft 54, the material suction structure 56 and the like are used, but the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The sheet material conveying device is characterized by comprising a base (1), wherein a lifting frame (2) is arranged on the base (1), one end of the lifting frame (2) is hinged to the base (1), a lifting assembly (10) is arranged between the other end of the lifting frame and the base (1), at least two transverse moving frames (3) which are transversely distributed are arranged on the lifting frame (2), two supporting arms (31) of each transverse moving frame (3) are connected with the lifting frame (2) through a transverse moving mechanism (4), a feeding frame (5) is arranged on each transverse moving frame (3), the feeding frame (5) is connected with the transverse moving frames (3) through longitudinal moving mechanisms (6), an annular conveying belt (7) is arranged between each feeding frame (5) and each transverse moving frame (3), one end of each conveying belt (7) is sleeved on a first driven wheel (71) at the front end of each feeding frame (5), the other end of each conveying belt is sleeved on a driving wheel (72) positioned at the rear end of each feeding frame (5), the driving wheel (72) is connected with the transverse moving frame (3) through a cantilever type fixing structure (8), the lower part of the conveyor belt (7) is sleeved on a second driven wheel (73), the second driven wheel (73) is arranged on a feeding rack (5) between a driving wheel (72) and a first driven wheel (71), the conveyor belt (7) is also sleeved on a third driven wheel (74) which is positioned between the second driven wheel (73) and the driving wheel (72) and is arranged at the bottom of the rear end of the feeding frame (5), a driving shaft (9) which is transversely arranged is arranged at the rear end of the transverse moving frame (3), two ends of the driving shaft (9) are respectively connected with the lifting frame (2) through a driving shaft seat (92), one end of the driving shaft (9) is connected with a driving shaft driver (93), and the driving shaft (9) is connected with the driving shaft seat (92) and the driving shaft driver (93) through a quick assembly and disassembly structure.

2. The sheet conveying device according to claim 1, characterized in that the quick-release structure comprises a plug-in coupling (94) connected to the output shaft of the drive shaft driver (93), the drive shaft driver (93) is fixed to the drive shaft seat (92) through the plug-in coupling (94), one end of the drive shaft (9) is plugged into the plug-in coupling (94), drive shaft bearings (95) are arranged between the drive shaft seat (92) and the end of the drive shaft (9), a flange (96) is arranged at the other end of the drive shaft (9), the flange (96) is connected to the drive shaft seat (92) through four bolts, and the inner end of the flange abuts against the outer ring of the drive shaft bearing (95) at the end.

3. The sheet conveying device according to claim 2, characterized in that a first U-shaped groove (921) is provided on the drive shaft seat (92) at one end of the flange (96), a drive shaft bearing seat (922) is provided in the first U-shaped groove (921), the drive shaft bearing seat (922) is connected to the drive shaft seat (92) through at least four bolts, the drive shaft bearing seat (922) is provided at the other end of the drive shaft (9), the drive shaft bearing (95) is provided between the drive shaft bearing seat (922) and the drive shaft (9), and the flange (96) is connected to the drive shaft bearing seat (922) through four bolts.

4. The sheet material conveying device according to claim 2, characterized in that second U-shaped grooves (51) are formed in two sides of the front end of the feeding frame (5), two ends of the first driven wheel (71) are respectively arranged in the second U-shaped grooves (51) and fixed through a first fixing plate (52), and the first fixing plate (52) is fixed on the feeding frame (5) through two bolts; the third driven wheel (74) is fixed at the bottom of the rear end of the feeding frame (5) through a third driven wheel seat (741); the second driven wheel (73) is arranged on a second driven wheel seat (731), two sides of the second driven wheel seat (731) are provided with a third U-shaped groove (732) for mounting the second driven wheel (73), two ends of the second driven wheel seat are respectively arranged in the third U-shaped groove (732) and fixed through a second fixing sheet (733), and the second driven wheel seat (731) is fixed on the feeding frame (5); the supporting arm (31) is longitudinally provided with a through hole (311) for passing through the conveyor belt (7).

5. The sheet conveying device according to claim 1 or 2 or 3 or 4, characterized in that the cantilever-type fixing structure (8) comprises a cantilever side plate (81) fixed on the traversing frame (3), the driving shaft (9) penetrates through the cantilever side plate (81), a shaft sleeve (82) positioned at the inner side of the cantilever side plate (81) is arranged between the cantilever side plate (81) and the driving shaft (9), the shaft sleeve (82) is connected with the driving shaft (9) through a key structure, a driving wheel bearing seat (83) is arranged between the outer end of the shaft sleeve (82) and the cantilever side plate (81), two driving wheel bearings are arranged between the driving wheel bearing seat (83) and the shaft sleeve (82), an inner ring of the driving wheel bearing positioned at the inner end abuts against an annular bulge (84) of the shaft sleeve (82), and an inner ring end cover and an outer ring end cover are arranged at the outer end of the driving wheel bearing at the outer end, the driving wheel (72) is sleeved on the inner end of the shaft sleeve (82), the driving wheel (72) is fixed on the shaft sleeve (82) through a tensioning sleeve (85), an annular inner step (86) is arranged at one end, located on the cantilever side plate (81), of the driving wheel (72), and the annular inner step (86) is sleeved on the periphery of the driving wheel bearing seat (83) and is not in contact with the driving wheel bearing seat.

6. The sheet material conveying device according to claim 5, characterized in that an isolating convex ring (87) is arranged in the annular inner step (86), the isolating convex ring (87) is connected with the driving wheel (72) into an integral structure, and the isolating convex ring (87) abuts against the annular bulge (84).

7. The sheet material conveying device according to claim 1 or 2 or 3 or 4, characterized in that the lifting assembly (10) comprises two transversely symmetrical electric cylinders (101), the bottoms of the electric cylinders (101) are hinged to the base (1), the output ends of the electric cylinders (101) abut against the bottom of the lifting frame (2), a lifting driving motor (102) is arranged between the two electric cylinders (101), a lifting commutator (103) is arranged on the output shaft of the lifting driving motor (102), and two ends of the lifting commutator (103) are respectively connected with the two electric cylinders (101) through two lifting connecting shafts (104).

8. The slab conveying device according to claim 1 or 2 or 3 or 4, the transverse moving mechanism (4) comprises transverse moving slide rails (41) which are respectively and transversely arranged at the two ends of the top surface of the lifting frame (2), the two ends of the bottom surface of the transverse moving frame (3) are respectively provided with a transverse moving slide block (42) which can be matched with the transverse moving slide rail (41), the outer side of each transverse moving slide rail (41) is provided with a rack (43) which is parallel to the transverse moving slide rail (41) and is fixed on the lifting frame (2), the rack (43) is provided with a gear (44), the two gears (44) are connected through a transverse shaft (45), the transverse moving shaft (45) is arranged on the bottom surface of the transverse moving frame (3) through a transverse moving shaft seat (46), one end of the transverse moving shaft (45) is provided with a transverse moving driving motor (47), the transverse moving driving motor (47) is connected with the transverse moving shaft (45) through a transverse moving commutator in a transverse moving way.

9. The sheet material conveying device according to claim 8, characterized in that the longitudinal moving mechanism (6) comprises a longitudinal moving slide rail (61) which is longitudinally arranged, the bottom of the support arm (31) is connected with the longitudinal moving slide rail (61) through a longitudinal moving slide block (62), a screw rod (63) is arranged on the two support arms (31) in a penetrating way, screw sleeves are arranged between the support arms (31) and the screw rods (63), two ends of the screw rod (63) are respectively connected with the transverse moving frame (3) through screw rod seats (64), and one end of the screw rod (63) is connected with a longitudinal moving driving motor (65).

10. The sheet conveying device according to claim 1 or 2 or 3 or 4, characterized in that the front end of the feeding frame (5) is provided with an anti-collision baffle (53), the lower end of the anti-collision baffle (53) is connected with the feeding frame (5) through two anti-collision shafts (54), the anti-collision shafts (54) are arranged on the feeding frame (5) in a penetrating manner, and springs (55) positioned between the anti-collision baffle (53) and the feeding frame (5) are sleeved on the anti-collision shafts (54); the front end of the feeding frame (5) is also provided with a material sucking structure (56).