Steel sheet automatic carrying carrier machine with automatic feeding and discharging system

Abstract

The invention provides an automatic steel sheet carrying carrier machine with an automatic feeding and discharging system, and relates to the field of material carrying automation, the automatic steel sheet carrying carrier machine comprises an automatic guide vehicle body, a material taking lifting sliding block, a taking and placing suction cup, a temporary storage bearing platform, a linear laser scanner, a protection bearing plate, a conveying protection mechanism and a temporary storage screening mechanism; the material taking lifting sliding block is connected to the front portion of the material taking lifting support in a sliding mode. The taking and placing supporting frame is connected to the upper portion of the taking and placing guide rail in a sliding mode. The taking and placing suction cups are fixedly connected to the lower end of the taking and placing supporting frame. The temporary storage bearing platform is fixedly connected to the lower end of the front portion of the automatic guiding vehicle body. The linear laser scanner is fixedly connected to the lower portion of the taking and placing supporting frame. The conveying protection mechanism is arranged in front of the material taking lifting sliding block. And the temporary storage screening mechanism is arranged above the temporary storage bearing platform, so that the loss of the steel sheets during machining is reduced, the production cost is reduced, and the problem that the steel sheets are damaged due to the fact that the existing steel sheets directly fall onto the ground is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of material handling automation, and particularly to an automatic steel sheet handling carrier machine with an automatic loading and unloading system. Background Art

[0002] In modern manufacturing industries, especially in the fields of automobile manufacturing, electronic information, aerospace, etc., as an important basic material, the automation level of the handling and processing links of steel sheets directly affects production efficiency and product quality. With the deepening of the concept of intelligent manufacturing and the popularization of Industry 4.0 technology, traditional manual handling and semi-automatic handling methods are difficult to meet the production requirements of high precision, high efficiency, and high flexibility. The automation upgrade of steel sheet handling equipment has become an inevitable trend in the industry's development. Currently, AGV (Automated Guided Vehicle) or RGV (Rail Guided Vehicle) is generally used for the automated handling of steel sheets. An automated guided vehicle is a transportation device that can automatically travel along a preset path and is widely used in industrial manufacturing, logistics warehousing, medical treatment, etc. It does not require driver operation and realizes unmanned handling of materials through built-in control systems and guidance technologies. It is an important part of modern automated production and intelligent logistics systems.

[0003] The existing patent with the publication number: CN111319949B relates to a steel sheet picking and placing device. The device includes: a steel sheet loading mechanism, a carrier conveying mechanism, and a steel sheet picking and placing mechanism. The steel sheet loading mechanism includes a steel sheet conveying component, a lifting component, a jacking component, and a steel sheet separating component. The carrier conveying mechanism is used to convey the carrier to one side of the loading station. The steel sheet picking and placing mechanism is used to pick up the steel sheet at the loading station and place it on the carrier on the carrier conveying mechanism. The above-mentioned steel sheet loading mechanism can realize automatic loading of steel sheets, the above-mentioned carrier conveying mechanism can realize automatic movement of the carrier to the loading station, and through the steel sheet picking and placing mechanism, the steel sheet can be automatically picked up and placed on the carrier. Therefore, the above-mentioned device of the present invention can realize automatic installation of steel sheets, and the entire installation process is highly efficient.

[0004] However, when the existing automated guided vehicle handles materials, since the steel sheet is relatively thin, a suction cup is generally used to adsorb the steel sheet. During the movement, due to uneven workshop floors, the presence of sundries, etc., once the automated guided vehicle experiences a large jolt, it is easy for the steel sheet to directly fall to the ground, causing damage to the steel sheet and increasing production costs. Summary of the Invention

[0005] In view of this, the present invention provides an automatic steel sheet transport carrier with an automatic loading and unloading system, which has the function of protecting the steel sheets during transportation. Once the steel sheets fall, the protective carrying plate can receive the steel sheets, thus avoiding damage to the steel sheets, reducing losses during steel sheet processing, reducing production costs, and realizing inspection of steel sheets during transportation, replacing manual random inspections and improving quality inspection efficiency.

[0006] The present invention provides an automatic steel sheet transport carrier with an automatic loading and unloading system, which specifically includes an automatic guide vehicle body, a material picking and lifting bracket, a material picking and lifting slide block, a picking and placing guide rail, a picking and placing support frame, a picking and placing suction cup, a temporary storage platform, a linear laser scanner, a protective bearing plate, a conveying protection mechanism and a temporary storage screening mechanism; the material picking and lifting bracket is fixedly connected to the front upper end of the automatic guide vehicle body; the material picking and lifting slide block is slidably connected to the front of the material picking and lifting bracket; the picking and placing guide rails are arranged in two groups, and the two groups of picking and placing guide rails are respectively fixedly connected to the left and right sides in front of the material picking and lifting slide block; the The pick-and-place support frame is slidably connected to the top of the pick-and-place guide rail; the pick-and-place suction cups are provided in multiple groups, all of which are vacuum suction cup structures, and the multiple groups of pick-and-place suction cups are respectively fixedly connected to the lower end of the pick-and-place support frame; the temporary storage platform is fixedly connected to the front lower end of the automatic guided vehicle body; the linear laser scanner is fixedly connected to the bottom of the pick-and-place support frame; the protective bearing plates are provided in two groups, and the two groups of protective bearing plates are respectively rotatably connected to the left and right sides in front of the material picking lifting slider; the conveying protection mechanism is arranged in front of the material picking lifting slider; the temporary storage screening mechanism is arranged above the temporary storage platform.

[0007] Furthermore, the conveying protection mechanism includes: a lifting drive screw and a lifting drive motor; the lifting drive screw is rotatably connected to the inner side of the material picking lifting bracket, and the lifting drive screw is threadedly connected to the material picking lifting slider; the lifting drive motor is fixedly connected to the rear lower end of the material picking lifting bracket, and the lifting drive motor is transmission-connected to the lifting drive screw.

[0008] Furthermore, the conveying protection mechanism also includes: a pick-up and placement electric push rod; the pick-up and placement electric push rod is fixedly connected to the rear end of the material picking and lifting slider, and the push rod structure of the pick-up and placement electric push rod is fixedly connected to the pick-up and placement support frame.

[0009] Furthermore, the conveying protection mechanism also includes: a protection drive rack and a protection drive gear; the protection drive rack is provided in two groups, and the two groups of protection drive racks are respectively slidably connected to the left and right sides of the rear end of the material picking lifting slider; the protection drive gear is provided in two groups, and the two groups of protection drive gears are respectively rotatably connected to the left and right sides of the rear end of the material picking lifting slider, and the two groups of protection drive gears are respectively engaged with the protection drive racks.

[0010] Furthermore, the conveying and protecting mechanism further includes: a protecting driving worm and a protecting driving worm gear; two sets of the protecting driving worms are provided, and the two sets of protecting driving worms are respectively coaxially and fixedly connected to the front end of the protecting driving rack; two sets of the protecting driving worm gears are provided, and the two sets of protecting driving worm gears are respectively coaxially and fixedly connected to the lower end of the protecting bearing plate, and the two sets of protecting driving worm gears are respectively meshed with the protecting driving worms.

[0011] Furthermore, the conveying and protecting mechanism further includes: protecting contact members; two sets of the protecting contact members are provided, and the two sets of protecting contact members are both rectangular flexible material structures, and the two sets of protecting contact members are respectively fixedly connected to the upper end of the protecting bearing plate.

[0012] Furthermore, the conveying and protecting mechanism further includes: protecting triggering members, protecting reset springs and protecting limiting members; two sets of the protecting triggering members are provided, and the two sets of protecting triggering members are respectively fixedly connected to the upper end of the protecting driving rack; two sets of the protecting reset springs are provided, and the two sets of protecting reset springs are respectively fixedly connected to the left and right sides behind the material taking lifting slider, and the upper ends of the two sets of protecting reset springs are respectively fixedly connected to the protecting driving rack; two sets of the protecting limiting members are provided, and the two sets of protecting limiting members are respectively fixedly connected to the upper left and right sides of the material taking lifting bracket.

[0013] Furthermore, the temporary storage and screening mechanism includes: a waste bearing table, a material taking clamping push rod, a clamping driving member, clamping contact members and clamping transmission rods; the waste bearing table is fixedly connected to the front end of the temporary storage base; the material taking clamping push rod is fixedly connected to the upper rear end of the temporary storage base; the clamping driving member is fixedly connected to the front end of the push rod structure of the material taking clamping push rod; two sets of the clamping contact members are provided, and the two sets of clamping contact members are respectively slidably connected to the upper left and right sides of the temporary storage base; four sets of the clamping transmission rods are provided, and the four sets of clamping transmission rods are respectively hinged to the left and right sides of the clamping driving member, and the outer sides of the four sets of clamping transmission rods are respectively hinged to the clamping contact members.

[0014] Furthermore, the temporary storage and screening mechanism further includes: a screening driving motor, a screening driving lead screw and a screening lifting slider; the screening driving motor is fixedly connected to the lower rear end of the temporary storage base, and the linear laser scanner is electrically connected to the control circuit of the screening driving motor; the screening driving lead screw is rotatably connected to the rear of the temporary storage base, and the screening driving lead screw is in transmission connection with the screening driving motor; the screening lifting slider is slidably connected to the rear of the temporary storage base, and the screening lifting slider is in threaded connection with the screening driving lead screw.

[0015] Furthermore, the temporary storage and screening mechanism further includes: a screening driving push rod and a screening extrusion member; the screening driving push rod is fixedly connected to the rear end of the screening lifting slider; the screening extrusion member is fixedly connected to the front end of the push rod structure of the screening driving push rod. Beneficial effects

[0016] The present invention sets a conveying protection mechanism to move the entire automatic guided vehicle body to the material rack position, and then the lifting drive motor drives the lifting drive screw to rotate, and the lifting drive screw rotates to drive the material picking lifting slide block to move upward, and the material picking lifting slide block moves upward to drive the pick-up and place suction cup to move upward, and the pick-up and place suction cup moves upward to the top of the steel sheet, and the pick-up and place electric push rod drives the pick-up and place suction cup to move forward, and after the pick-up and place suction cup moves forward to correspond to the position of the steel sheet, it drives the pick-up and place suction cup to move downward to contact the steel sheet, and the pick-up and place suction cup realizes the picking of the steel sheet, and after the pick-up and place suction cup finishes picking up the steel sheet, the material picking lifting slide block is moved upward to the upper side, and the material picking lifting slide block moves upward to drive the protection trigger member upward The protective trigger part moves upward and contacts with the protective limit part. At this time, the protective trigger part is squeezed and moves downward. The protective trigger part moves downward, driving the protective drive rack to move downward. The protective drive rack moves downward, driving the protective drive gear to rotate. The rotation of the protective drive gear drives the protective drive worm to rotate. The rotation of the protective drive worm drives the protective drive worm wheel to rotate. The rotation of the protective drive worm wheel drives the protective bearing plate to rotate in the opposite direction. The protective bearing plate rotates in the opposite direction to the bottom of the pick-and-place suction cup, thereby realizing protection for the steel sheet during transportation. Once the steel sheet falls, the protective bearing plate can receive the steel sheet, thereby avoiding damage to the steel sheet, reducing loss during steel sheet processing, and reducing production costs.

[0017] The present invention arranges the temporary storage screening mechanism, places the stacked steel sheets to the inner side of the clamping contact piece, opens the material taking clamping push rod, and the push rod of the material taking clamping push rod moves backward to drive the clamping driving piece to move backward. The clamping driving piece moves backward and drives the clamping contact piece to move inward under the action of the clamping transmission rod. The clamping contact piece moves inward to clamp the steel sheets, and the steel sheets are placed above the temporary storage platform when the automatic guided vehicle body moves. The linear laser scanner realizes the detection of the size of the steel sheets. When unqualified steel sheets are detected, the screening driving motor is controlled, and the screening driving motor drives the screening driving screw to rotate. The screening driving screw rotates to drive the screening lifting slide block to move downward, and the screening lifting slide block moves downward to drive the screening driving push rod to move downward. When the screening driving push rod moves downward to the rear of the steel sheets, the push rod of the screening driving push rod is driven to move forward to drive the screening extrusion piece to move forward to push the unqualified steel sheets to the inner side of the waste bearing platform. The waste bearing platform realizes the collection of waste, and realizes the detection of steel sheets during the transportation process, replaces manual sampling, and improves the quality inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the accompanying drawings: Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention.

[0021] Figure 2 is a schematic diagram of the lifting drive lead screw structure of an embodiment of the present invention.

[0022] Figure 3 is a schematic diagram of the clamping contact structure of an embodiment of the present invention.

[0023] Figure 4 is a schematic diagram of the pick-and-place electric push rod structure of an embodiment of the present invention.

[0024] Figure 5 is a schematic diagram of the waste carrier structure of an embodiment of the present invention.

[0025] Figure 6 is a schematic diagram of the clamping drive structure of an embodiment of the present invention.

[0026] Figure 7 is a schematic diagram of the protective drive worm gear structure of an embodiment of the present invention.

[0027] Figure 8 is a schematic diagram of the protective drive rack structure of an embodiment of the present invention.

[0028] List of reference numerals 1, automatic guided vehicle body; 101, lifting drive lead screw; 102, lifting drive motor; 103, pick-and-place electric push rod; 104, protective drive rack; 105, protective drive gear; 106, protective drive worm; 107, protective drive worm gear; 108, protective contact; 109, protective trigger; 110, protective return spring; 111, protective limit; 2, picking and lifting bracket; 3, picking and lifting slider; 4, pick-and-place guide rail; 5, pick-and-place support frame; 6, pick-and-place suction cup; 7, temporary storage platform; 701, waste carrier; 702, picking and clamping push rod; 703, clamping drive; 704, clamping contact; 705, clamping transmission rod; 706, screening drive motor; 707, screening drive lead screw; 708, screening lifting slider; 709, screening drive push rod; 710, screening extrusion; 8, linear laser scanner; 9, protective bearing plate. Detailed embodiments Embodiment 1

[0029] Please refer to Figures 1 to 8 as shown: The present invention provides an automatic steel sheet handling carrier machine with an automatic loading and unloading system, which includes an automatic guided vehicle body 1, a material taking and lifting support 2, a material taking and lifting slider 3, a picking and placing guide rail 4, a picking and placing support frame 5, a picking and placing suction cup 6, a temporary storage platform 7, a linear laser scanner 8, a protective bearing plate 9 and a conveying protection mechanism; the material taking and lifting support 2 is fixedly connected to the upper front end of the automatic guided vehicle body 1; the material taking and lifting slider 3 is slidably connected to the front of the material taking and lifting support 2; two groups of picking and placing guide rails 4 are provided, and the two groups of picking and placing guide rails 4 are respectively fixedly connected to the left and right sides in front of the material taking and lifting slider 3; the picking and placing support frame 5 is slidably connected above the picking and placing guide rail 4; multiple groups of picking and placing suction cups 6 are provided, and the multiple groups of picking and placing suction cups 6 are all vacuum suction cup structures, and the multiple groups of picking and placing suction cups 6 are respectively fixedly connected to the lower end of the picking and placing support frame 5; the temporary storage platform 7 is fixedly connected to the lower front end of the automatic guided vehicle body 1; the linear laser scanner 8 is fixedly connected below the picking and placing support frame 5; two groups of protective bearing plates 9 are provided, and the two groups of protective bearing plates 9 are respectively rotatably connected to the left and right sides in front of the material taking and lifting slider 3; the conveying protection mechanism is arranged in front of the material taking and lifting slider 3.

[0030] Among them, the conveying protection mechanism includes: a lifting drive lead screw 101 and a lifting drive motor 102; the lifting drive lead screw 101 is rotatably connected to the inside of the material taking and lifting support 2, and the lifting drive lead screw 101 is threadedly connected to the material taking and lifting slider 3; the lifting drive motor 102 is fixedly connected to the lower rear end of the material taking and lifting support 2, and the lifting drive motor 102 is drivingly connected to the lifting drive lead screw 101.

[0031] Among them, the conveying protection mechanism further includes: a picking and placing electric push rod 103; the picking and placing electric push rod 103 is fixedly connected to the rear end of the material taking and lifting slider 3, and the push rod structure of the picking and placing electric push rod 103 is fixedly connected to the picking and placing support frame 5.

[0032] Among them, the conveying protection mechanism further includes: a protection drive rack 104 and a protection drive gear 105; two groups of protection drive racks 104 are provided, and the two groups of protection drive racks 104 are respectively slidably connected to the left and right sides of the rear end of the material taking and lifting slider 3; two groups of protection drive gears 105 are provided, and the two groups of protection drive gears 105 are respectively rotatably connected to the left and right sides of the rear end of the material taking and lifting slider 3, and the two groups of protection drive gears 105 are respectively engaged with the protection drive rack 104.

[0033] Among them, the conveying protection mechanism further includes: a protection drive worm 106 and a protection drive worm gear 107; two groups of protection drive worms 106 are provided, and the two groups of protection drive worms 106 are respectively coaxially fixedly connected to the front ends of the protection drive racks 104; two groups of protection drive worm gears 107 are provided, and the two groups of protection drive worm gears 107 are respectively coaxially fixedly connected to the lower ends of the protective bearing plates 9, and the two groups of protection drive worm gears 107 are respectively engaged with the protection drive worms 106.

[0034] The conveying protection mechanism further includes: a protection contact piece 108 ; two groups of protection contact pieces 108 are provided, both groups of protection contact pieces 108 are rectangular flexible material structures, and the two groups of protection contact pieces 108 are respectively fixedly connected to the upper end of the protection bearing plate 9 .

[0035] Among them, the conveying protection mechanism also includes: a protection trigger member 109, a protection reset spring 110 and a protection limit member 111; two groups of protection trigger members 109 are arranged, and the two groups of protection trigger members 109 are respectively fixedly connected to the upper end of the protection drive rack 104; two groups of protection reset springs 110 are arranged, and the two groups of protection reset springs 110 are respectively fixedly connected to the left and right sides of the rear of the material picking lifting slider 3, and the upper ends of the two groups of protection reset springs 110 are respectively fixedly connected to the protection drive rack 104; two groups of protection limit members 111 are arranged, and the two groups of protection limit members 111 are respectively fixedly connected to the left and right sides above the material picking lifting bracket 2.

[0036] The specific usage and function of this embodiment are as follows: when it is necessary to pick up the steel sheet, the entire automatic guided vehicle body 1 is moved to the material rack position, and then the lifting drive motor 102 drives the lifting drive screw 101 to rotate, and the lifting drive screw 101 rotates to drive the material picking lifting slide block 3 to move upward, and the material picking lifting slide block 3 moves upward to drive the pick-up and placement suction cup 6 to move upward, and the pick-up and placement suction cup 6 moves upward to the top of the steel sheet, and the pick-up and placement electric push rod 103 drives the pick-up and placement suction cup 6 to move forward, and after the pick-up and placement suction cup 6 moves forward to correspond to the position of the steel sheet, it drives the pick-up and placement suction cup 6 to move downward to contact the steel sheet, and the pick-up and placement suction cup 6 realizes the picking of the steel sheet, and after the pick-up and placement suction cup 6 picks up the steel sheet, by moving the material picking lifting slide block 3 upward to the top, the material picking lifting slide block 3 moves upward to drive the protective trigger member 109 to The protective trigger member 109 moves upward and contacts with the protective limit member 111. At this time, the protective trigger member 109 is squeezed and moves downward. The protective trigger member 109 moves downward, driving the protective drive rack 104 to move downward. The protective drive rack 104 moves downward, driving the protective drive gear 105 to rotate. The rotation of the protective drive gear 105 drives the protective drive worm 106 to rotate. The rotation of the protective drive worm 106 drives the protective drive worm wheel 107 to rotate. The rotation of the protective drive worm wheel 107 drives the protective bearing plate 9 to rotate in the opposite direction. The protective bearing plate 9 rotates in the opposite direction to the bottom of the pick-and-place suction cup 6, thereby realizing protection for the steel sheet during transportation. Once the steel sheet falls, the protective bearing plate 9 realizes the reception of the steel sheet, thereby avoiding damage to the steel sheet, reducing the loss during steel sheet processing, and reducing production costs. Embodiment 2

[0037] like Figures 1 to 6 As shown: The present invention provides an automatic steel sheet handling carrier machine equipped with an automatic loading and unloading system. On the basis of Embodiment 1, it further includes a temporary storage and screening mechanism, which is arranged above the temporary storage platform 7.

[0038] Among them, the temporary storage and screening mechanism includes: a waste material carrying platform 701, a material taking and clamping push rod 702, a clamping driving part 703, a clamping contact part 704, and a clamping transmission rod 705; the waste material carrying platform 701 is fixedly connected to the front end of the temporary storage platform 7; the material taking and clamping push rod 702 is fixedly connected to the rear end above the temporary storage platform 7; the clamping driving part 703 is fixedly connected to the front end of the push rod structure of the material taking and clamping push rod 702; two groups of clamping contact parts 704 are provided, and the two groups of clamping contact parts 704 are respectively slidably connected to the left and right sides above the temporary storage platform 7; four groups of clamping transmission rods 705 are provided, and the four groups of clamping transmission rods 705 are respectively hinged to the left and right sides of the clamping driving part 703, and the outer sides of the four groups of clamping transmission rods 705 are respectively hinged to the clamping contact parts 704.

[0039] Among them, the temporary storage and screening mechanism further includes: a screening driving motor 706, a screening driving lead screw 707, and a screening lifting slider 708; the screening driving motor 706 is fixedly connected to the lower rear end of the temporary storage platform 7, and the linear laser scanner 8 is electrically connected to the control circuit of the screening driving motor 706; the screening driving lead screw 707 is rotatably connected to the rear of the temporary storage platform 7, and the screening driving lead screw 707 is in transmission connection with the screening driving motor 706; the screening lifting slider 708 is slidably connected to the rear of the temporary storage platform 7, and the screening lifting slider 708 is threadedly connected to the screening driving lead screw 707.

[0040] Among them, the temporary storage and screening mechanism further includes: a screening driving push rod 709 and a screening extrusion part 710; the screening driving push rod 709 is fixedly connected to the rear end of the screening lifting slider 708; the screening extrusion part 710 is fixedly connected to the front end of the push rod structure of the screening driving push rod 709.

[0041] Specific usage and functions of this embodiment: When taking materials, stack the steel sheets inside the clamping contact member 704, open the material-taking clamping push rod 702. The push rod of the material-taking clamping push rod 702 moves backward, driving the clamping driving member 703 to move backward. The backward movement of the clamping driving member 703 drives the clamping contact member 704 to move inward under the action of the clamping transmission rod 705. The inward movement of the clamping contact member 704 realizes the clamping of the steel sheets. When the automatic guiding vehicle body 1 moves, place the steel sheets above the temporary storage platform 7. The linear laser scanner 8 realizes the detection of the dimensions of the steel sheets. When detecting unqualified steel sheets, control the screening drive motor 706. The screening drive motor 706 drives the screening drive lead screw 707 to rotate. The rotation of the screening drive lead screw 707 drives the screening lifting slider 708 to move downward. The downward movement of the screening lifting slider 708 drives the screening drive push rod 709 to move downward. When the screening drive push rod 709 moves downward to the rear of the steel sheet, drive the push rod of the screening drive push rod 709 to move forward, driving the screening extrusion member 710 to move forward to push the unqualified steel sheets into the inner side of the waste bearing platform 701. The waste bearing platform 701 realizes the collection of waste materials, realizes the detection of steel sheets during transportation, replaces manual sampling inspection, and improves the quality inspection efficiency.

[0042] In this article, the following points need attention: 1. The drawings of this embodiment only relate to the structures involved in this embodiment. Other structures can refer to the general design.

[0043] 2. Without conflict, the features in this embodiment and the embodiments can be combined with each other to obtain new embodiments.

[0044] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An automatic steel sheet handling carrier machine with an automatic loading and unloading system, characterized in that: It includes an automatic guided vehicle body (1), a material taking and lifting bracket (2), a material taking and lifting slider (3), a picking and placing guide rail (4), a picking and placing support frame (5), a picking and placing suction cup (6), a temporary storage platform (7), a linear laser scanner (8), a protective bearing plate (9), a conveying protection mechanism and a temporary storage and screening mechanism; the material taking and lifting bracket (2) is fixedly connected to the upper front of the automatic guided vehicle body (1); the material taking and lifting slider (3) is slidably connected to the front of the material taking and lifting bracket (2); two groups of picking and placing guide rails (4) are provided, and the two groups of picking and placing guide rails (4) are respectively fixedly connected to the left and right sides of the front of the material taking and lifting slider (3); the picking and placing support frame (5) is slidably connected above the picking and placing guide rail (4); multiple groups of picking and placing suction cups (6) are provided, and multiple groups of picking and placing suction cups (6) are all vacuum suction cup structures, and multiple groups of picking and placing suction cups (6) are respectively fixedly connected to the lower end of the picking and placing support frame (5); the temporary storage platform (7) is fixedly connected to the lower front of the automatic guided vehicle body (1); the linear laser scanner (8) is fixedly connected below the picking and placing support frame (5); two groups of protective bearing plates (9) are provided, and the two groups of protective bearing plates (9) are respectively rotatably connected to the left and right sides of the front of the material taking and lifting slider (3); the conveying protection mechanism is arranged in front of the material taking and lifting slider (3); the temporary storage and screening mechanism is arranged above the temporary storage platform (7).

2. The automatic steel sheet handling carrier machine with an automatic loading and unloading system as described in claim 1, wherein: The conveying protection mechanism includes: a lifting drive lead screw (101) and a lifting drive motor (102); the lifting drive lead screw (101) is rotatably connected to the inside of the material taking and lifting bracket (2), and the lifting drive lead screw (101) is threadedly connected to the material taking and lifting slider (3); the lifting drive motor (102) is fixedly connected to the lower rear of the material taking and lifting bracket (2), and the lifting drive motor (102) is drivingly connected to the lifting drive lead screw (101).

3. The automatic steel sheet handling carrier machine with an automatic loading and unloading system as described in claim 2, characterized in that: The conveying protection mechanism further includes: a picking and placing electric push rod (103); the picking and placing electric push rod (103) is fixedly connected to the rear end of the material taking and lifting slider (3), and the push rod structure of the picking and placing electric push rod (103) is fixedly connected to the picking and placing support frame (5).

4. The automatic steel sheet handling carrier machine with an automatic loading and unloading system as claimed in claim 3, wherein: The conveying protection mechanism further includes: a protection drive rack (104) and a protection drive gear (105); two groups of protection drive racks (104) are provided, and the two groups of protection drive racks (104) are respectively slidably connected to the left and right sides of the rear end of the material taking and lifting slider (3); two groups of protection drive gears (105) are provided, and the two groups of protection drive gears (105) are respectively rotatably connected to the left and right sides of the rear end of the material taking and lifting slider (3), and the two groups of protection drive gears (105) are respectively engaged with the protection drive rack (104).

5. The automatic steel sheet handling carrier machine with an automatic loading and unloading system according to claim 4, characterized in that: The conveying and protecting mechanism further includes: a protecting driving worm (106) and a protecting driving worm gear (107); two groups of the protecting driving worms (106) are provided, and the two groups of protecting driving worms (106) are respectively coaxially and fixedly connected to the front end of the protecting driving rack (104); two groups of the protecting driving worm gears (107) are provided, and the two groups of protecting driving worm gears (107) are respectively coaxially and fixedly connected to the lower end of the protecting bearing plate (9), and the two groups of protecting driving worm gears (107) are respectively meshed with the protecting driving worms (106).

6. The automatic steel sheet handling carrier machine with an automatic loading and unloading system as claimed in claim 5, wherein: The conveying and protecting mechanism further includes: a protecting contact member (108); two groups of the protecting contact members (108) are provided, and the two groups of protecting contact members (108) are both rectangular flexible material structures, and the two groups of protecting contact members (108) are respectively fixedly connected to the upper end of the protecting bearing plate (9).

7. The automatic steel sheet handling carrier machine with an automatic loading and unloading system as described in claim 6, characterized in that: The conveying and protecting mechanism further includes: a protecting triggering member (109), a protecting reset spring (110) and a protecting limiting member (111); two groups of the protecting triggering members (109) are provided, and the two groups of protecting triggering members (109) are respectively fixedly connected to the upper end of the protecting driving rack (104); two groups of the protecting reset springs (110) are provided, and the two groups of protecting reset springs (110) are respectively fixedly connected to the left and right sides behind the material taking lifting slider (3), and the upper ends of the two groups of protecting reset springs (110) are respectively fixedly connected to the protecting driving rack (104); two groups of the protecting limiting members (111) are provided, and the two groups of protecting limiting members (111) are respectively fixedly connected to the upper left and right sides of the material taking lifting bracket (2).

8. The automatic steel sheet handling carrier machine with an automatic loading and unloading system according to claim 1, wherein: The temporary storage and screening mechanism includes: a waste bearing table (701), a material taking clamping push rod (702), a clamping driving member (703), a clamping contact member (704) and a clamping transmission rod (705); the waste bearing table (701) is fixedly connected to the front end of the temporary storage bearing platform (7); the material taking clamping push rod (702) is fixedly connected to the rear end above the temporary storage bearing platform (7); the clamping driving member (703) is fixedly connected to the front end of the push rod structure of the material taking clamping push rod (702); two groups of the clamping contact members (704) are provided, and the two groups of clamping contact members (704) are respectively slidably connected to the upper left and right sides of the temporary storage bearing platform (7); four groups of the clamping transmission rods (705) are provided, and the four groups of clamping transmission rods (705) are respectively hinged to the left and right sides of the clamping driving member (703), and the outer sides of the four groups of clamping transmission rods (705) are respectively hinged to the clamping contact members (704).

9. The automatic steel sheet handling carrier machine with an automatic loading and unloading system according to claim 8, characterized in that: The screening drive motor (706), the screening drive lead screw (707), and the screening lifting slider (708) are selected; the screening drive motor (706) is fixedly connected to the lower rear end of the temporary storage platform (7), and the linear laser scanner (8) is electrically connected to the control circuit of the screening drive motor (706); the screening drive lead screw (707) is rotatably connected to the rear of the temporary storage platform (7), and the screening drive lead screw (707) is in transmission connection with the screening drive motor (706); the screening lifting slider (708) is slidably connected to the rear of the temporary storage platform (7), and the screening lifting slider (708) is threadedly connected to the screening drive lead screw (707).

10. The automatic steel sheet handling carrier machine with an automatic loading and unloading system as claimed in claim 9, wherein: The temporary storage and screening mechanism further includes: a screening drive push rod (709) and a screening extrusion member (710); the screening drive push rod (709) is fixedly connected to the rear end of the screening lifting slider (708); the screening extrusion member (710) is fixedly connected to the front end of the push rod structure of the screening drive push rod (709).

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