CN210392893U

CN210392893U - Automatic feeding device for flaky materials

Info

Publication number: CN210392893U
Application number: CN201921238660.8U
Authority: CN
Inventors: 陈礼诚; 严静波; 王勇; 曾兵兵; 任涛涛; 程岩; 徐琼; 吴群策; 廖延东
Original assignee: Anhui Leaper Technology Co ltd
Current assignee: Anhui Leaper Technology Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-04-24
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses an automatic feeding device for sheet materials, which comprises a conveying device, a material taking device and a feeding device, wherein the material taking device absorbs materials supplied by the conveying device and conveys the materials to the feeding device; the conveying device comprises a feeding platform and a motor assembly used for pushing the feeding platform to move up and down, a first fixing plate fixed on the rack is arranged below the feeding platform, at least one first guide pillar is arranged on the first fixing plate, and a second guide pillar nested with the first guide pillar is fixedly arranged below the feeding platform; the mechanized circular feeding of the materials is realized, and the feeding efficiency of the materials is improved.

Description

Automatic feeding device for flaky materials

Technical Field

The utility model relates to a slice material processing technology field especially relates to a slice material automatic feeding device.

Background

Sheet materials such as polaroids, ultrathin spectacle lenses, laminated composite sheets and the like are thin in thickness, large in size and soft in hardness, so that in the process of feeding and transporting, the conventional feeding mode which is commonly used is to directly suck the sheet materials up and down through a suction nozzle and convey the sheet materials to the next procedure, but the phenomenon of warping and breaking is easily caused due to the fact that the sheet materials are not properly fed by the suction nozzle through the suction nozzle, and the quality treatment of the sheet materials in the subsequent procedures is influenced. Therefore, whether the flaky materials can be stably loaded or not can directly influence the subsequent processing precision and quality of the flaky materials.

SUMMERY OF THE UTILITY MODEL

Based on the technical problem that the background art exists, the utility model provides a slice material automatic feeding device has realized the mechanized circulation material loading of material, has improved the material loading efficiency of material.

The utility model provides an automatic feeding device for sheet materials, which comprises a conveying device, a material taking device and a feeding device, wherein the material taking device absorbs materials supplied by the conveying device and conveys the materials to the feeding device; the conveying device comprises a feeding platform and a motor assembly used for pushing the feeding platform to move up and down, a first fixing plate fixed on the rack is arranged below the feeding platform, at least one first guide pillar is arranged on the first fixing plate, and a second guide pillar nested with the first guide pillar is fixedly arranged below the feeding platform.

Furthermore, the conveying device also comprises two first conveying belts arranged oppositely and a second conveying belt arranged below the first conveying belts; the two pushing cylinders are respectively arranged at the opposite outer sides of the two first conveying belts, at least one guide mechanism is respectively arranged at the same side of the two pushing cylinders, and the movement direction of the guide mechanism is consistent with the telescopic direction of the pushing cylinders at the same side;

furthermore, the guide mechanism comprises a first guide rail fixed on the rack and a first guide block connected with the first guide rail in a sliding manner, the axial direction of the first guide rail is parallel to the output direction of the pushing cylinder, and the first guide block is fixedly connected with the first conveying belt.

Furthermore, the two motor assemblies are respectively arranged below two axial ends of the second conveying belt, each motor assembly comprises a first motor fixed on the first fixing plate and a lead screw, one end of each lead screw is connected with the output end of the first motor, the other end of each lead screw is connected with the second fixing plate, the feeding platform is arranged on the second fixing plate, and the second fixing plate drives the lead screws to rotate through the first motors so as to move, so that the feeding platform can move;

the screw rod is provided with an upper limiting sensor and a lower limiting sensor, the two axial ends of the second conveying belt are respectively provided with a third sensor for detecting the movement of the feeding platform in place, and the pushing cylinder is provided with a fourth sensor for detecting the movement of the first conveying belt in place.

Furthermore, a protection pile is further arranged on the first fixing plate, and a rubber sleeve is sleeved at the end part, close to the feeding platform, of the protection pile; the feeding platform is provided with a plurality of magnetic suction blocks, and the magnetic suction blocks form a first cavity for placing materials.

Furthermore, the material taking device comprises a plurality of first suction nozzles and a first linear module for driving the first suction nozzles to move relative to the material loading platform, and a first sensor for detecting the running position of the first suction nozzles is arranged on one side of the first suction nozzles;

furthermore, the material taking device also comprises an ion wind device for eliminating the static electricity on the surface of the material, the ion wind device comprises an ion wind nozzle and a compressed air cavity fixed on the rack, and the ion wind nozzle is communicated with the compressed air cavity through an ion wind pipe;

the output end of the first straight line module is connected with a third fixing plate, a fourth fixing plate used for fixing the first suction nozzle is arranged in the axis direction of the third fixing plate, and the fourth fixing plate is connected with the third fixing plate in a sliding mode.

Furthermore, the fourth fixing plate is an L-shaped bending piece, a bending surface of the fourth fixing plate is connected with the third fixing plate, a first waist hole is formed in the other bending surface of the fourth fixing plate, and the first suction nozzle is movably fixed on the first waist hole through a bolt;

the fourth fixing plate is provided with a second sensor for detecting the thickness of the material sucked by the first suction nozzle and a kneading mechanism for separating the laminated material, and the second sensor is arranged on a bending surface of the fourth fixing plate connected with the third fixing plate;

furthermore, the kneading mechanism comprises a fifth fixing plate and a first cylinder fixed on the third fixing plate, one end of the fifth fixing plate is connected with the output end of the first cylinder, the other end of the fifth fixing plate is connected with a fourth fixing plate, a second waist hole is formed in the third fixing plate, the fourth fixing plate is fixed on the third fixing plate by a first bolt penetrating through the second waist hole, and the first cylinder drives the fifth fixing plate to drive the fourth fixing plate to rotate around the first bolt.

Furthermore, material feeding unit includes second straight line module and the second suction nozzle of being connected with second straight line module output, second straight line module and the mutually perpendicular motion of first straight line module.

The utility model provides a pair of slice material automatic feeding device's advantage lies in: the utility model discloses a slice material automatic feeding device that provides in the structure has realized the mechanized circulation material loading of material, has improved the material loading efficiency of material, has avoided the defect that can not circulate material loading and material warp, fracture etc. appear in traditional material loading; the material is fixed through the magnetic suction block, so that the defect that the material is difficult to absorb by the first suction nozzle due to large position change of the material in the process of absorbing the material by the first suction nozzle is avoided; the first sensor detects the initial descending position of the first suction nozzle to fix the descending position behind the first suction nozzle, and the height of the blanking platform is adjusted to realize the stable absorption of the first suction nozzle on the material, so that the defect that the absorption of the material is unstable when the first suction nozzle moves up and down in the traditional material loading process is avoided; the second sensor counts the fed materials in real time to realize stable circulation between periods, and the defect that the first suction nozzle cannot stably suck the materials due to errors of the periodic circulation is avoided; when the screw rod runs, the first guide post moves in the second guide post to play a role in guiding and supporting the feeding platform, so that the defect that the feeding platform inclines or even falls off when the screw rod runs is avoided, and meanwhile, the jacking mechanism rotates in a certain position range by virtue of an upper limiting sensor and a lower limiting sensor arranged on the screw rod, so that the feeding platform moves up and down in a certain range, and the defect that the feeding platform is excessively jacked or excessively descended to cause difficulty in feeding materials is avoided; the plurality of first suction nozzles are driven to move through the linear module, so that the operation heights of the plurality of first suction nozzles are consistent, and the defect that the first suction nozzles cannot stably suck materials due to driving errors when the plurality of first suction nozzles are respectively driven to move is avoided; when material lamination occurs, the kneading mechanism kneads the materials, in the kneading process, the materials of the lamination enter the materials of the lamination due to shaking or vibration, the separation of the lamination materials is realized, and the guide mechanisms are arranged on two sides of the first conveying belt of the conveying device, so that the defect of structural deviation when the first conveying belt moves due to the fact that the pushing cylinder pushes the first conveying belt is avoided.

Drawings

Fig. 1 is a schematic structural view of an automatic feeding device for sheet materials according to the present invention;

FIG. 2 is a schematic view of the conveyor and the reclaimer;

FIG. 3 is a schematic structural view of a conveying device;

FIG. 4 is a schematic structural view of the first conveyor belt and the pushing cylinder;

FIG. 5 is a schematic view of a reclaimer assembly;

FIG. 6 is a schematic view of the linear module and the first nozzle;

FIG. 7 is a schematic structural view of the kneading mechanism and the first suction nozzle;

FIG. 8 is a schematic structural view of the second fixing plate and the motor assembly;

FIG. 9 is a schematic view of a motor assembly;

wherein, 1-conveying device, 2-material taking device, 3-feeding device, 4-frame, 5-third conveying belt, 11-motor component, 13-feeding platform, 14-first conveying belt, 15-second conveying belt, 21-ion air nozzle, 22-compressed air cavity, 23-material taking frame, 25-kneading mechanism, 111-second fixing plate, 112-first fixing plate, 113-lead screw, 114-first motor, 115-second guide post, 116-first guide post, 117-protection pile, 123-pushing cylinder, 124-first guide rail, 125-first guide block, 131-magnetic attraction block, 211-first linear module, 212-first suction nozzle, 213-third fixing plate, 214-fourth fixing plate, 215-first kidney hole, 251-first cylinder, 252-fifth fixing plate.

Detailed Description

The technical solutions of the present invention are explained in detail below with reference to specific embodiments, and many specific details are set forth in the following description to provide a thorough understanding of the present invention. The present invention can be embodied in many other forms than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The material that the device carried is generally the slice, is easily by the material of suction nozzle absorption above material, for example: the polaroid, the ultrathin spectacle lens, the laminated composite sheet and the like can be automatically fed by adopting the device to improve the processing efficiency, and the feeding process is basically consistent; the following examples are given by way of illustration of polarizers.

Referring to fig. 1 to 9, the utility model provides an automatic feeding device for sheet materials, including conveyor 1, extracting device 2 and material feeding unit 3, extracting device 2 absorbs the material that conveyor 1 supplied with and carries in material feeding unit 3, and conveyor 1 is fixed in on the relative both sides face of frame 4, still is provided with the push cylinder 123 of adjusting the distance between two conveyors 1 on frame 4, conveyor 1 includes material loading platform 13 and is used for promoting motor element 11 of material loading platform 13 up-and-down motion, is provided with first fixed plate 112 fixed in frame 4 below material loading platform 13, is provided with at least one first guide pillar 116 on first fixed plate 112, and the fixed second guide pillar 115 who is connected with first guide pillar 116 nested that is provided with below material loading platform 13;

can set up two or more loading platform 13, loading platform 13 passes through conveyor 1 and moves, realize the circulation material loading of loading platform 13, when the loading platform 13 that carries the slice material moves to material loading department, promote cylinder 123 work, increase the distance between two conveyors 1, motor element 11 operates, with loading platform 13 jack-up, in order to realize the material loading, after the slice material that carries in loading platform 13 has been handled, motor element 11 reversal, make loading platform 13 drop on conveyor 1, be carried out the device through conveyor 1, in order to carry out the operation of loading once more. The next material loading platform 13 that carries the slice material is by another motor element 11 jack-up, extracting device 2 moves to material loading platform 13, absorb material on the material loading platform 13 after to remove the direction of keeping away from material loading platform 13, and pass through material feeding unit 3 with the material of this absorption and carry in the next process, the mechanized circulation material loading of having realized the slice material, the material loading efficiency of material has been improved, can not circulate material loading and material in having avoided traditional material loading and appear the defect of warpage, fracture etc..

As shown in fig. 8 and 9, the feeding platform 13 is placed on the upper surface of the second fixing plate 111, the lower surface of the second fixing plate 111 is connected to the output end of the motor assembly 11, when the feeding platform 13 is driven to move by the motor assembly 11, there is a risk that the feeding platform 13 may tilt or even fall due to unstable movement, so that the second guide post 115 is disposed on the lower surface of the second fixing plate 111, the first hollow guide post 116 is disposed on the first fixing plate 112, the second guide post 115 can be nested in the first guide post 116, when the feeding platform 13 moves up and down by the motor assembly 11, the second guide post 115 can move in the first guide post 116, on one hand, by the movement of the first guide post 116, the defect that the feeding platform 13 tilts or falls is avoided, on the other hand, by the relative nesting movement of the two guide posts, the moving operation of the feeding platform 13 is realized, the defect that the feeding platform 13 is interfered by structures of other structures due to abnormal motion is avoided.

As shown in fig. 3 and 4, the conveying device 1 further includes two oppositely disposed first conveying belts 14, and a second conveying belt 15 disposed below the first conveying belts 14; first conveyer belt 14 and second conveyer belt 15 are placed from top to bottom, be provided with a plurality of magnetism on the material loading platform 13 and inhale piece 131, a plurality of magnetism inhale piece 131 and form the first cavity that is used for placing the polaroid, the first cavity that magnetism was inhaled the piece 131 and is formed can be fixed the polaroid in certain space, the absorption transportation of the first suction nozzle to the polaroid of being convenient for has avoided first suction nozzle at the in-process that absorbs the polaroid, it is great to cause the change in polaroid position, make the difficult defect that absorbs the polaroid of first suction nozzle.

The frame 4 is further provided with a pushing cylinder 123 for adjusting the distance between the two first conveyor belts 14, the two pushing cylinders 123 are respectively arranged on the opposite outer sides of the two first conveyor belts 14, at least one guide mechanism is respectively arranged on the same side of the two pushing cylinders 123, and the movement direction of the guide mechanism is consistent with the telescopic direction of the pushing cylinder 123 on the same side; the guide mechanism comprises a first guide rail 124 fixed on the frame 4 and a first guide block 125 connected with the first guide rail 124 in a sliding manner, the axial direction of the first guide rail 124 is parallel to the output direction of the pushing cylinder 123, and the first guide block 125 is fixedly connected with the first conveyor belt 14. When the pushing cylinder 123 is operated, the two first conveyor belts 14 are pushed to move, so that the first guide block 125 connected with the first conveyor belt 14 moves along the first guide rail 124, and the first guide block 125 avoids structural deviation of the first conveyor belt 14 when the pushing cylinder 123 pushes the first conveyor belt 14 in the process of moving. One or more first guide blocks 125 may be provided to accommodate adjustment of the movement of the first conveyor belt 14 at different lengths.

As shown in fig. 9, the two motor assemblies 11 are respectively disposed below two axial ends of the second conveyor belt 15, each motor assembly 11 includes a first motor 114 fixed on the first fixing plate 112 and a lead screw 113 having one end connected to an output end of the first motor 114, the other end of the lead screw 113 is connected to a second fixing plate 111, the feeding platform 13 is disposed on the second fixing plate 111, and the second fixing plate 111 drives the lead screw 113 to rotate and move through the first motor 114, so as to realize movement of the feeding platform 13; an upper limiting sensor and a lower limiting sensor are arranged on the screw 113, third sensors for detecting that the feeding platform 13 moves in place are respectively arranged at two axial ends of the second conveying belt 15, and a fourth sensor for detecting that the first conveying belt 14 moves in place is arranged on the pushing cylinder 123.

The up-and-down movement distance of the screw 113 is detected by an upper limit sensor and a lower limit sensor, so that the defect that the feeding platform 13 cannot stably run due to excessive extension or excessive contraction of the screw 113 is avoided. Meanwhile, when the feeding platform 13 circulates between the first conveying belt 14 and the second conveying belt 15, in order to avoid the defect that the feeding platform 13 falls off due to excessive movement of the feeding platform 13, position sensors are arranged at two axial ends of the second conveying belt and the first conveying belt, when the position sensors detect the feeding platform 13, the corresponding conveying belts stop moving, and the screw 113 in the motor assembly 11 pushes the feeding platform 13 to ascend or descend, so that stable circulation of the feeding platform 13 is realized. When the two pushing cylinders 123 extend and contract to enable the first conveying belt 14 to move, when the fourth sensors arranged on the two pushing cylinders 123 detect that the first conveying belt 14 moves in place, the two pushing cylinders 123 stop working.

In order to avoid the abnormal work of the motor assembly 11 and to cause the defect that the structure of the feeding platform 13 is damaged due to the sudden drop, the first fixing plate 112 is further provided with one or more protecting piles 117, the protecting piles 117 can be provided with one or more rubber sleeves, the end part sleeves of the protecting piles 117 close to the feeding platform 13 are provided with rubber sleeves, when the operation is abnormal, the rubber sleeves on the protecting piles 117 can stop the feeding platform 13 slowly, and the damage of the feeding platform 13 is avoided.

As shown in fig. 5 to 7, the material taking device 2 includes a plurality of first nozzles 212 and a first linear module 211 for moving the first nozzles 212 relative to the loading platform 13, and a first sensor for detecting the operation positions of the first nozzles 212 is disposed at one side of the first nozzles 212. The material taking device 2 further comprises an ion wind device for eliminating static electricity on the surface of the material, the ion wind device comprises an ion wind nozzle 21 and a compressed air cavity 22 fixed on the rack 4, and the ion wind nozzle 21 is communicated with the compressed air cavity 22 through an ion wind pipe;

when first suction nozzle 212 absorbs the material, because the material size is big on the large side, generally need set up a plurality of first suction nozzles 212, in order to realize the stable absorption to the material, if every first suction nozzle 212 sets up with first linear module 211 one-to-one, will set up a plurality of first linear modules 211, not only increase the complexity of structure, and because the running error of a plurality of first linear modules 211, cause dropping of material easily, consequently this application sets up a straight line module, the output of first linear module 211 is connected with third fixed plate 213, the axis direction of third fixed plate 213 is provided with fourth fixed plate 214 that is used for fixed first suction nozzle 212, fourth fixed plate 214 and third fixed plate 213 sliding connection.

The fourth fixing plate 214 is an L-shaped bent part, a bent surface of the fourth fixing plate 214 is connected with the third fixing plate 213, another bent surface of the fourth fixing plate 214 is provided with a first waist hole 215, the first suction nozzle 212 is movably fixed on the first waist hole 215 by a bolt, and the first suction nozzle 212 fixed on the first waist hole 215 can be one, two or even a plurality of, so that the first suction nozzle 212 can realize the distance adjustment between the first suction nozzles 212 by the fixation, and can adjust the suction angle between the first suction nozzle 212 and the material to adapt to the stable suction requirements of different materials;

as shown in fig. 7, when the first suction nozzle 212 sucks the material, a lamination (sucking 2 or more materials) may occur, and therefore, the fourth fixing plate 214 is provided with a second sensor for detecting the thickness of the material sucked by the first suction nozzle 212, the second sensor is arranged on a bending surface of the fourth fixing plate 214 connected with the third fixing plate 213, and when the thickness detected by the second sensor is greater than the thickness of a single material, it is indicated that the material sucked by the first suction nozzle 212 is laminated, and therefore, a separation operation needs to be performed on the laminated material, in this application, the fourth fixing plate 214 is provided with a kneading mechanism 25 for separating the laminated material on the bending surface connected with the third fixing plate 213. The rubbing mechanism 25 includes a fifth fixing plate 252 and a first cylinder 251 fixed on the third fixing plate 213, one end of the fifth fixing plate 252 is connected to the output end of the first cylinder 251, the other end of the fifth fixing plate is connected to the fourth fixing plate 214, a second waist hole is formed in the third fixing plate 213, the fourth fixing plate 214 passes through the second waist hole by a first bolt and is fixed on the third fixing plate 213, and the first cylinder 251 drives the fifth fixing plate 252 to drive the fourth fixing plate 214 to rotate around the first bolt. The rubbing mechanisms 25 may be respectively disposed at the plurality of first nozzles 212, or may be disposed at the first nozzles 212 fixed to both ends of the third fixing plate 213, so as to effectively complete the installation of the number of the stacked sheets that is preferable for the separation. The fourth fixing plate 214 is adjusted to rotate around the third fixing plate 213 by the kneading mechanism 25, so as to realize the left and right kneading of the first suction nozzle 212 at the material, and in the kneading process, the materials of the laminated sheet enter between the materials of the laminated sheet due to shaking or vibration, so as to realize the separation of the laminated sheet materials.

The feeding device 3 comprises a second linear module and a second suction nozzle connected with the output end of the second linear module, and the second linear module and the first linear module 211 move perpendicular to each other.

The working process is as follows: firstly, two or more loading platforms 13 carrying polaroids are placed on a second conveying belt 15, the loading platforms 13 are conveyed to the position above a motor assembly 11 at a loading position through the second conveying belt 15, a screw 113 drives a second fixing plate 111 to rise upwards and lift up below the loading platform 13, piston rods of two pushing cylinders 123 contract to increase the distance between two first conveying belts 14, at the moment, a first motor 114 rotates forwards, a lifting mechanism is driven to rotate through a belt, the loading platforms 13 carrying the polaroids are lifted to a first suction nozzle 212 of a material taking device 2 to suck the polaroids through the first suction nozzle 212, the second suction nozzle sucks the polaroids sucked by the first suction nozzle 212, and a second linear module drives the second suction nozzle to move to convey the polaroids to a third conveying belt 5 to enter a subsequent process, so that the loading of the polaroids is realized. When the first suction nozzle 212 sucks the first material, the first sensor detects the position of the first suction nozzle 212 moving downwards, the linear module 11 moves upwards, and drives the first suction nozzle 212 carrying the material to move upwards, so as to realize the feeding of the material.

When the first suction nozzle 212 sucks the material on the feeding platform 13 again, the linear module 11 drives the first suction nozzle 212 to move downwards, and at this time, the position to which the first suction nozzle 212 moves is the position detected by the first sensor, so that a cycle is performed, when entering the next cycle, the downward position of the first suction nozzle 212 to the feeding platform 13 is still unchanged, the first motor 114 operates to drive the lead screw 113 to extend, so that the feeding platform 13 moves upwards by a certain distance L1, the certain distance L1 is the total thickness of the material sucked by the first suction nozzle 212 in a cycle, and the total thickness is the sum of the thicknesses of a plurality of materials in a cycle. Then the next cycle of feeding is carried out. Repeated in this way, realize the stable material loading of material.

After the polarizer on the feeding platform 13 is completely conveyed, the piston rods of the two pushing cylinders 123 extend to reduce the distance between the two first conveying belts 14, the first motor 114 rotates reversely, the screw 113 is driven to rotate by the belt, the feeding platform 13 moves downward, the feeding platform 13 falls on the two first conveying belts 14 along with the rotation of the screw 113, the feeding platform 13 moves outward along with the movement of the first conveying belts 14, when the third sensor detects that the feeding platform 13 moves outward in place, the screw 113 in another motor assembly 11 below the feeding platform 13 extends to drive the feeding platform 13 to move downward and finally fall on the second conveying belt 15, the polarizer is loaded into the feeding platform 13 at this time, the feeding platform 13 loaded with the polarizer again is loaded, and one-time circular feeding of materials is completed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An automatic sheet material feeding device comprises a conveying device (1), a material taking device (2) and a feeding device (3), wherein the material taking device (2) absorbs materials supplied by the conveying device (1) and conveys the materials into the feeding device (3), and the conveying device (1) is fixed on two opposite side surfaces of a rack (4), and is characterized in that a pushing cylinder (123) for adjusting the distance between the two conveying devices (1) is further arranged on the rack (4);

the conveying device (1) comprises a feeding platform (13) and a motor assembly (11) used for pushing the feeding platform (13) to move up and down, a first fixing plate (112) fixed on the rack (4) is arranged below the feeding platform (13), at least one first guide pillar (116) is arranged on the first fixing plate (112), and a second guide pillar (115) connected with the first guide pillar (116) in a nested mode is fixedly arranged below the feeding platform (13).

2. The automatic loading device for sheet materials according to claim 1, characterized in that the conveying device (1) further comprises two oppositely arranged first conveying belts (14), and a second conveying belt (15) arranged below the first conveying belts (14);

the two pushing cylinders (123) are respectively arranged on the opposite outer sides of the two first conveying belts (14), at least one guide mechanism is respectively arranged on the same side of the two pushing cylinders (123), and the moving direction of the guide mechanism is consistent with the telescopic direction of the pushing cylinders (123) on the same side.

3. The automatic loading device for the sheet materials according to claim 2, characterized in that the guiding mechanism comprises a first guide rail (124) fixed on the frame (4) and a first guide block (125) connected with the first guide rail (124) in a sliding manner, the first guide rail (124) is axially parallel to the output direction of the pushing cylinder (123), and the first guide block (125) is fixedly connected with the first conveying belt (14).

4. The automatic sheet material feeding device according to claim 2, wherein the number of the motor assemblies (11) is two, and the two motor assemblies are respectively arranged below two axial ends of the second conveyor belt (15), the motor assemblies (11) comprise a first motor (114) fixed on a first fixing plate (112) and a lead screw (113) with one end connected with an output end of the first motor (114), the other end of the lead screw (113) is connected with a second fixing plate (111), the feeding platform (13) is arranged on the second fixing plate (111), and the second fixing plate (111) drives the lead screw (113) to rotate through the first motor (114) so as to move, so that the feeding platform (13) can move;

an upper limit sensor and a lower limit sensor are arranged on the lead screw (113), third sensors used for detecting that the feeding platform (13) moves in place are respectively arranged at two axial ends of the second conveying belt (15), and a fourth sensor used for detecting that the first conveying belt (14) moves in place is arranged on the pushing cylinder (123).

5. The automatic feeding device for the sheet materials according to claim 2, characterized in that the first fixing plate (112) is further provided with a protection pile (117), and the protection pile (117) is sleeved with a rubber sleeve at the end part close to the feeding platform (13);

a plurality of magnetic suction blocks (131) are arranged on the feeding platform (13), and a first cavity for placing materials is formed by the magnetic suction blocks (131).

6. The automatic feeding device for sheet materials according to claim 1, characterized in that the material taking device (2) comprises a plurality of first suction nozzles (212) and a first linear module (211) driving the first suction nozzles (212) to move relative to the feeding platform (13), and a first sensor for detecting the operation position of the first suction nozzles (212) is arranged at one side of the first suction nozzles (212).

7. The automatic loading device for the sheet materials according to claim 6, wherein the material taking device (2) further comprises an ion air device for eliminating the static electricity on the surface of the materials, the ion air device comprises an ion air nozzle (21) and a compressed air cavity (22) fixed on the frame (4), and the ion air nozzle (21) is communicated with the compressed air cavity (22) through an ion air pipe;

the output end of the first linear module (211) is connected with a third fixing plate (213), a fourth fixing plate (214) used for fixing the first suction nozzle (212) is arranged in the axial direction of the third fixing plate (213), and the fourth fixing plate (214) is connected with the third fixing plate (213) in a sliding mode.

8. The automatic loading device for the sheet materials according to claim 7, wherein the fourth fixing plate (214) is an L-shaped bending member, a bending surface of the fourth fixing plate (214) is connected with the third fixing plate (213), a first waist hole (215) is formed in the other bending surface of the fourth fixing plate (214), and the first suction nozzle (212) is movably fixed on the first waist hole (215) through a bolt;

and a second sensor for detecting the thickness of the materials sucked by the first suction nozzle (212) and a kneading mechanism (25) for separating the materials of the laminated plate are arranged on the fourth fixing plate (214), and the second sensor is arranged on a bending surface of the fourth fixing plate (214) connected with the third fixing plate (213).

9. The automatic feeding device for sheet materials according to claim 8, wherein the kneading mechanism (25) comprises a fifth fixing plate (252) and a first cylinder (251) fixed on a third fixing plate (213), one end of the fifth fixing plate (252) is connected with the output end of the first cylinder (251), the other end of the fifth fixing plate is connected with a fourth fixing plate (214), a second waist hole is formed in the third fixing plate (213), the fourth fixing plate (214) is fixed on the third fixing plate (213) through a first bolt passing through the second waist hole, and the first cylinder 251 drives the fifth fixing plate (252) to drive the fourth fixing plate (214) to rotate around the first bolt.

10. The automatic feeding device of sheet materials according to any one of claims 1 to 9, characterized in that said feeding device (3) comprises a second linear module and a second suction nozzle connected to the output end of the second linear module, said second linear module moving perpendicular to the first linear module (211).