An unloading device for vertically placed plates

Abstract

An unloading device for vertically placed plates, comprising a base, a support mechanism, a telescopic mechanism, a hook arm assembly, a short support assembly and a long support assembly; one end of the telescopic mechanism is fixed to the base, and the other end is connected to the support mechanism and drives the support mechanism to swing around the base; the short support plate and the long support plate can move up and down along the support mechanism; the hook arm assembly is provided with a bent hook arm and can move up and down along the support mechanism, and the end of the hook arm and the starting end are bent arms, forming a bent space. In the present invention, the long support plate, the short support plate and the bent hook arm are provided to fix a plurality of vertically placed plates, and then by swinging the support mechanism to incline its main body towards the feeding side, all the plates vertically placed on the support mechanism are unloaded onto the A-frame, reducing the placement time of the plates and improving the efficiency; and by raising the short support plate, a relative position height difference between the short support plate and the long support plate is formed for half unloading, and the plates can be more accurately placed on both sides of the A-frame.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet unloading, and particularly to an unloading device for vertically placed sheets. Background Art

[0002] In the traditional sheet industry, in order to prevent the sheets from being broken due to vibration during transportation, the sheets are generally transported in a vertical position, and the transportation carriers used are mostly A-frames. However, when using an A-frame to transport sheets, generally, a vacuum suction cup or manual lifting method is used to place the sheets on the A-frame one by one and then transport them. Such a placement method is time-consuming and inefficient. Summary of the Invention

[0003] Aiming at the problems raised in the background art, the object of the present invention is to provide an unloading device for vertically placed sheets.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] An unloading device for vertically placed sheets, comprising a base, a support mechanism, a telescopic mechanism, a hook arm assembly, a short support assembly and a long support assembly; the support mechanism is installed on the base, one end of the telescopic mechanism is fixed to the base, and the other end is connected to the support mechanism and drives the support mechanism to swing around the base; the short support assembly is provided with a short support plate, and the long support assembly is provided with a long support plate. The short support plate and the long support plate can both move up and down reciprocally along the feeding side of the support mechanism and can also stretch along the feeding side of the support mechanism; the hook arm assembly is provided with a bent hook arm, and the hook arm can move up and down reciprocally along the feeding side of the support mechanism. There is a bent arm between the end and the starting end of the hook arm, forming a bent space; when the main body of the support mechanism inclines towards its fixed side and forms an obtuse angle with the horizontal direction, the bottom end of the vertically placed sheet is supported by the short support plate and the long support plate, and is supported on the side by the end; when the hook arm and the short support plate are lifted simultaneously, the sheet supported by the short support plate is lifted together with the hook arm and the short support plate; the sheet lifted by the long support plate falls off the long support plate under the action of gravity at the moment when the end of the hook arm disengages from the side of the sheet.

[0006] Preferably, the support mechanism includes a hollow support frame, and the short support assembly and the long support assembly are fixedly installed on the support frame; the support frame is further provided with a first lifting structure and a second lifting structure, and the fixed ends of the first lifting structure and the second lifting structure are fixed to the support frame; the movable end of the first lifting structure is connected to the short support assembly and drives the main body of the short support assembly to reciprocate in the vertical direction, and the movable end of the second lifting structure is connected to the long support assembly and drives the main body of the long support assembly to reciprocate in the vertical direction.

[0007] Preferably, the support frame is provided with two vertical connecting columns, which are the first connecting column and the second connecting column respectively; vertical guide bars are provided on the sides of the first connecting column and the second connecting column; the short support assembly further includes a first sliding member, and the first sliding member is provided with a first guide groove for sliding with the guide bar. The first guide groove is clamped on the guide bar so that the short support assembly can reciprocate up and down along the first connecting column; the long support assembly further includes a second sliding member, and the second sliding member is provided with a second guide groove for sliding with the guide bar. The second guide groove is clamped on the guide bar so that the long support assembly can reciprocate up and down along the second connecting column.

[0008] Preferably, both the short support assembly and the long support assembly are provided with a sliding cavity and a telescopic assembly; openings are provided on both the front and rear sides of the sliding cavity, and a strip-shaped notch is provided at the bottom of the sliding cavity; the connecting end of the telescopic assembly is fixedly connected to the short support assembly and the long support assembly, and its output end is connected to the bottom surfaces of the short support plate and the long support plate through the strip-shaped notch, and drives the short support plate and the long support plate to reciprocate back and forth along the sliding cavity.

[0009] Preferably, the short support assembly and the long support assembly are further provided with a connecting groove, and the connecting groove communicates with the sliding cavity through the strip-shaped notch; racks are provided on the backs of the short support plate and the long support plate; the telescopic assembly includes a driving motor, a rotating shaft and a gear. The driving motor is fixedly installed on the short support assembly and the long support assembly. One end of the rotating shaft is sleeved on the output end, and the other end passes through both sides of the connecting groove and is fixedly installed on the side away from the driving motor; the inside of the gear is communicated by the rotating shaft, and the external teeth of the gear are clamped in the strip-shaped notch and meshed with the rack.

[0010] Preferably, the base further includes a fixed bracket, and the fixed bracket includes a first bracket and a second bracket; one end of the first bracket is fixedly connected to the base and the other end inclines backward; one end of the second bracket is fixedly connected to the base, and the other end inclines forward and is connected to the first bracket.

[0011] Preferably, a flipping structure is further provided at the top of the support mechanism. The flipping structure includes an oil cylinder and a hinge seat. A first hinge portion and a second hinge portion are provided at the starting end of the hook arm. The oil cylinder is hinged to the first hinge portion through a rotating shaft, and the hinge seat is hinged to the second hinge portion through a rotating shaft.

[0012] Preferably, a connecting seat is further provided at the top of the base. The bottom of the support mechanism is hinged to the connecting seat, so that the support mechanism can swing around the connecting seat.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention provides a long support plate, a short support plate and a bent hook arm to fix multiple vertically placed plates. Then, by swinging the support mechanism to incline its main body towards the feeding side, all the plates vertically placed on the support mechanism are unloaded onto the A-frame, reducing the placement time of the plates and improving the efficiency. And by raising the short support plate for half unloading, the plates can be placed more accurately on both sides of the A-frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings further illustrate the present invention, but the content in the drawings does not constitute any limitation to the present invention.

[0016] Figure 1 is the left view of the unloading device according to an embodiment of the present invention;

[0017] Figure 2 is the side view of the unloading device according to an embodiment of the present invention;

[0018] Figure 3 is the schematic structural view of the bent hook arm according to an embodiment of the present invention;

[0019] Figure 4 is the rear view of the unloading device according to an embodiment of the present invention;

[0020] Figure 5 is the schematic structural view of the support assembly according to an embodiment of the present invention;

[0021] Figure 6 is Figure 5 the partial enlarged view of the dashed circle B;

[0022] Figure 7 is the schematic view of the unloading device according to an embodiment of the present invention in cooperation with the A-frame;

[0023] Figure 8 is the schematic view of the unloading process of the unloading device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0025] In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include one or more of such features.

[0026] As Figures 1 to 8 shown, an unloading device for vertically placed plates includes a base 1, a support mechanism 2, a telescopic mechanism 3, a hook arm assembly 4, a short support assembly 51, and a long support assembly 52; the support mechanism 2 is installed on the base 1, one end of the telescopic mechanism 3 is fixed to the base 1, and the other end is connected to the support mechanism 2 and drives the support mechanism 2 to swing around the base 1; the short support assembly 51 is provided with a short support plate 511, the long support assembly 52 is provided with a long support plate 512, and the short support plate 511 and the long support plate 512 can reciprocate up and down along the feeding side of the support mechanism 2 and can also extend and retract along the feeding side of the support mechanism 2; the hook arm assembly 4 is provided with a bent hook arm 41, which can reciprocate up and down along the feeding side of the support mechanism 2, and there is a bent arm between the end 402 and the start end 401 of the hook arm, forming a bent space 40; when the main body of the support mechanism 2 inclines towards its feeding side, the main body of the support mechanism forms an obtuse angle with the horizontal direction, the bottom end of the vertically placed plate is lifted by the short support plate 511 and the long support plate 512, and is supported on the side by the end 402; when the hook arm and the short support plate 511 are lifted simultaneously, the plate lifted by the short support plate 511 is lifted together with the hook arm and the short support plate 511; the plate lifted by the long support plate 512 falls off the long support plate 512 under the action of gravity at the moment when the end 402 of the hook arm disengages from the side of the plate.

[0027] Specifically, in this embodiment, for reference Figure 1 the feeding side is the front side of the support mechanism 2, and the fixed side is the rear side of the support mechanism. For reference Figure 7The explained angle A is the angle between the main body of the support mechanism and the horizontal direction. The bottom of the support mechanism 2 is movably installed on the top surface of the base 1, and under the action of the telescopic mechanism 3, it can swing back and forth around the base 1. The short support assembly 51 and the long support assembly 52 are fixedly installed on the support mechanism 2. The short support plate 511 of the short support assembly 51 and the long support plate 512 of the long support assembly 52 extend outward to the front side of the support mechanism 2, and the long support plate 512 and the short support plate 511 can be telescoped along the feeding side of the support mechanism 2 to adjust the lengths of the long support plate 512 and the short support plate 511 extending outward; the long support plate 512 and the short support plate 511 can also reciprocate up and down along the support mechanism. The starting end 401 of the bent hook arm 41 is inclined upward, and its end is movably installed on the top of the support mechanism 2. The end 402 of the bent hook arm 41 is inclined downward, so that the starting end 401 and the end 402 are connected to form a bent arm. It should be noted that the telescopic mechanism 3 is a telescopic oil cylinder, and in other embodiments, it can be other telescopic mechanisms 3.

[0028] Further, under the action of an external machine, a plurality of plates are placed vertically on the support mechanism 2. The bottom of the plates is supported by the long support plate 512 and the short support plate 511, and their rear sides rely on the support mechanism 2. After all the plates are placed vertically on the support mechanism 2, the bent hook arm 41 of the hook arm assembly 4 moves downward, and the front side of the plates is supported by the support member on its end 402, so that a plurality of plates can be stably placed vertically on the support mechanism 2. Since the support mechanism 2 can load a plurality of plates and the number of plates loaded each time is different, the bent hook arm 41 is provided with a bending space 40, which enables the bent hook arm 41 to better straddle from the rear side of the top of the plates to the front side of the plates to support the plates. More preferably, when the support mechanism 2 loads the plates, the support mechanism 2 needs to be adjusted by the telescopic mechanism 3 so that the support mechanism swings backward on the base, and the angle A with the horizontal direction is a right angle or an acute angle, that is, the support mechanism 2 is vertical or inclined backward, so as to prevent the plates from slipping after being loaded onto the feeding side of the support mechanism 2 and causing damage to the plates. As Figure 7 shown, after all the plates are stably placed vertically on the support mechanism 2, the plate transportation device is moved to the front side close to the unloading device, and then the support mechanism 2 is adjusted to swing toward the feeding side by the telescopic mechanism 3, so that the angle of the angle A between the main body of the support mechanism 2 and the horizontal direction is an obtuse angle, that is, the support mechanism 2 is inclined forward. In this embodiment, the plate transportation device is an A-frame, and in other embodiments, it can be other plate transportation devices; moreover, the optimal acute angle is 75 - 80 degrees. As Figure 8As shown, after adjusting the angle of the forward tilt of the support mechanism 2, the short support plate 511 and the bent hook arm 41 are simultaneously moved upward, so that a height difference is formed between the short support plate 511 and the long support plate 512, and the plate material of the short support plate 511 is also lifted accordingly. The plate material that is not lifted is placed vertically on the long support plate 512. After the bent hook arm 41 is moved upward simultaneously with the short support plate 511 and a height difference is formed between the short support plate 511 and the long support plate 512, the bent hook arm 41 moves downward again to support the front side of the plate material on the short support plate 511. For the plate material on the long support plate 512, at the moment when the bent hook arm 41 moves upward, the bent hook arm 41 will no longer support it. Therefore, under the action of gravity, the plate material slides onto the A-frame and is placed vertically on the A-frame. After all the plate materials staying on the long support plate 512 are unloaded onto the A-frame, the A-frame is rotated. After adjusting the distance between the A-frame and the unloading device, the short support plate 511 is then moved downward and the bent hook arm 41 is moved upward to release the plate material on the short support plate 511, and this plate material will also slide to the other side of the A-frame and is placed vertically. It should be noted that when the plate material is fixed on the support mechanism 2, the long support plate 512 supports the bottom of all the plate materials, while the short support plate 511 only supports the bottom of half of the plate materials, so as to unload all the plate materials onto both sides of the A-frame. In the present invention, the long support plate 512, the short support plate 511 and the bent hook arm 41 are provided to fix multiple vertically placed plate materials, and then by swinging the support mechanism 2 to tilt its main body toward the feeding side, all the vertically placed plate materials on the support mechanism 2 are unloaded onto the A-frame, reducing the placement time of the plate materials and improving the efficiency. And by raising the short support plate 511 for half-unloading, the plate materials can be placed more accurately on both sides of the A-frame.

[0029] Further, the support mechanism 2 includes a hollow support frame 21, and the short support assembly 51 and the long support assembly 52 are fixedly installed on the support frame 21. The support frame 21 is further provided with a first lifting structure 61 and a second lifting structure 62, and the fixed ends of the first lifting structure 61 and the second lifting structure 62 are fixed to the support frame 21. The movable end of the first lifting structure 61 is connected to the short support assembly 51 and drives the main body of the short support assembly 51 to reciprocate in the vertical direction. The movable end of the second lifting structure 62 is connected to the long support assembly 52 and drives the main body of the long support assembly 52 to reciprocate in the vertical direction. The short support plate 511 and the long support plate 512 can reciprocate up and down along the support mechanism 2 because the short support assembly 51 and the long support assembly 52 are connected to the lifting structure. Under the action of the lifting structure, the short support assembly 51 and the long support assembly 52 reciprocate up and down in the support frame 21, thereby driving the movement of the short support plate 511 and the long support plate 512. In this embodiment, the lifting structure is a telescopic oil cylinder, and in other embodiments, it can be other lifting structures. The first lifting structure 61 is connected to the short support assembly 51, and the second lifting structure 62 is connected to the long support assembly 52. When unloading the plate, the first lifting structure 61 and the second lifting structure 62 move simultaneously to adjust the distance between the long support plate 512 and the A-frame to ensure that the plate can slide smoothly onto the A-frame. After adjusting the distance of the long support plate 512, start the first lifting structure 61 to lift the short support plate 511 to form a height difference, and multiple plates on the long support plate 512 slide down onto the A-frame under the action of gravity. After unloading multiple plates on the long support plate 512, start the first lifting structure 61 again to lower the short support plate 511 and unload the plates on the short support plate 511 onto the A-frame. Such a setting can ensure the safe unloading of the plate and avoid damage to the plate. The first lifting structure 61 and the second lifting structure 62 are separately connected to the short support assembly 51 and the long support assembly 52, and can be independently controlled for lifting, so as to complete half-unloading and ensure that the plate can be accurately unloaded on both sides of the A-frame.

[0030] Specifically, the support frame 21 is provided with two vertical connecting columns, namely the first connecting column 211 and the second connecting column 212; vertical guide bars 22 are provided on the sides of the first connecting column 211 and the second connecting column 212; the short support assembly 51 further includes a first sliding member 512, and the first sliding member 512 is provided with a first guide groove for sliding with the guide bar 22. The first guide groove is clamped on the guide bar 22, so that the short support assembly 51 can reciprocate up and down along the first connecting column 211; the long support assembly 52 further includes a second sliding member 522, and the second sliding member 522 is provided with a second guide groove for sliding with the guide bar 22. The second guide groove is clamped on the guide bar 22, so that the long support assembly 52 can reciprocate up and down along the second connecting column 212. The long support assembly 52 and the short support assembly 51 cooperate with the guide bar 22 through the second sliding member 522 and the first sliding member 512 to slide. Such a setting can play a guiding role through the guide bar 22, ensuring that the lifting of the long support assembly 52 and the short support assembly 51 is in the same vertical direction, so that when the plates are lifted and lowered by the short support plate 511 and the long support plate 512, they can be neatly placed vertically on the short support plate 511 and the long support plate 512, thus ensuring that the plates are stably placed vertically on the support mechanism 2. More preferably, through the sliding on the guide bar 22, the lifting actions of the short support assembly 51 and the long support assembly 52 are smoother, reducing the force on the lifting structure.

[0031] Furthermore, both the short support assembly 51 and the long support assembly 52 are provided with a sliding cavity 551 and a telescopic assembly; openings are provided on the front and rear sides of the sliding cavity 551, and a strip-shaped notch 552 is provided at the bottom of the sliding cavity 551; the connecting end of the telescopic assembly is fixedly connected to the short support assembly 51 and the long support assembly 52, and its output end is connected to the bottom surfaces of the short support plate 511 and the long support plate 512 through the strip-shaped notch 552, and drives the short support plate 511 and the long support plate 512 to reciprocate back and forth along the sliding cavity 551. Driven by the telescopic assembly, the short support plate 511 and the long support plate 512 can move back and forth in the sliding cavity 551, thereby adjusting the lengths of the short support plate 511 and the long support plate 512 extending out, so that the short support plate 511 and the long support plate 512 can support different numbers of plates, making the unloading device more universal.

[0032] Specifically, the short support assembly 51 and the long support assembly 52 are further provided with a connecting groove 553, and the connecting groove 553 communicates with the sliding cavity 551 through the strip-shaped notch 552; racks 54 are provided on the back surfaces of the short support plate 511 and the long support plate 512; the telescopic assembly includes a driving motor 531, a rotating shaft 532 and a gear 533. The driving motor 531 is fixedly installed on the short support assembly 51 and the long support assembly 52. One end of the rotating shaft 532 is sleeved on the output end, and the other end passes through both sides of the connecting groove 553 and is fixedly installed on the side away from the driving motor 531; the inside of the gear 533 is communicated by the rotating shaft 532, and the external teeth of the gear 533 are clamped in the strip-shaped notch 552 and meshed with the rack 54. When more plates need to be placed vertically, in this embodiment, the driving motor 531 can be rotated forward to rotate the rotating shaft 532 sleeved on the output end of the driving motor 531, thereby driving the gear 533 to rotate forward, pushing the rack 54 meshed with it to move forward, so as to increase the length of the short support plate 511 and the long support plate 512 extending outwards, so that the short support plate 511 and the long support plate 512 can hold more plates. When the extension length needs to be reduced, the driving motor 531 can be driven to rotate in reverse, so that the gear 533 rotates backward, pushing the rack 54 to move backward, thereby reducing the extension length of the short support plate 511 and the long support plate 512.

[0033] Preferably, the base 1 further includes a fixing bracket 14, and the fixing bracket 14 includes a first bracket 141 and a second bracket 142; one end of the first bracket 141 is fixedly connected to the base 1, and the other end is inclined backward; one end of the second bracket 142 is fixedly connected to the base 1, and the other end is inclined forward and connected to the first bracket 141. In this embodiment, the telescopic mechanism 3 is installed on the fixing bracket 14; the first bracket 141 and the second bracket 142 of the fixing bracket 14 are connected by welding, and a triangle is formed between the two and the base 1. With such a setting, the telescopic mechanism 3 can drive the entire support mechanism 2 more stably by means of the fixing bracket 14.

[0034] Specifically, the top of the support mechanism 2 is also provided with a flip structure 23, and the flip structure 23 includes an oil cylinder 232 and an articulated seat 231; the starting end 401 of the hook arm is provided with a first articulated portion 4011 and a second articulated portion 4012, the oil cylinder 232 is articulated with the first articulated portion 4011 through a rotating shaft, and the articulated seat 231 is articulated with the second articulated portion 4012 through a rotating shaft. The bent hook arm 41 reciprocates up and down through the flip structure 23. In this embodiment, the oil cylinder 232 is preferably selected as a driving member. The process of the bent hook arm 41 supporting and releasing the plate is as follows: when supporting, the oil cylinder 232 extends outward to push the first articulated portion 4011, and the movement of the first articulated portion 4011 will drive the starting end 401 to move forward, but the second articulated portion 4012 of the starting end 401 is articulated with the articulated seat 231, so the first articulated portion 4011 will be turned forward around the second articulated portion 4012. The end 402 is also driven, because the end 402 is tilted and bent downward, so that the entire bent hook arm 41 moves downward, thereby supporting the side of the plate. To release the plate, the oil cylinder 232 contracts, pulling the start end 401 backward, and the first hinge 4011 flips backward, which drives the end 402 to move upward, so that the bent hook arm 41 moves upward as a whole, thereby releasing the plate. With this arrangement, the bent hook arm 41 can more conveniently control the flipping action, thereby accurately supporting and releasing the plate, ensuring the fixation and unloading of the plate.

[0035] Furthermore, a connection seat 15 is provided on the top of the base 1, and the bottom of the support mechanism 2 is hinged to the connection seat 15, so that the support mechanism 2 can swing around the connection seat 15. The bottom of the support mechanism 2 is hinged to the connection seat 15, and the support mechanism 2 will swing back and forth with the connection seat 15 as the center under the action of the telescopic mechanism 3. Such a setting can reduce the reaction force of the support mechanism 2 on the telescopic mechanism 3 when it swings, thereby reducing wear and tear and increasing the service life.

[0036] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. An unloading device for vertically placed plates, characterized in that, it includes a base, a support mechanism, a telescopic mechanism, a hook arm assembly, a short support assembly and a long support assembly; The support mechanism is installed on the base, one end of the telescopic mechanism is fixed to the base, and the other end is connected to the support mechanism and drives the support mechanism to swing around the base; The short support assembly is provided with a short support plate, the long support assembly is provided with a long support plate, the short support plate and the long support plate can reciprocate up and down along the feeding side of the support mechanism, and the long support plate and the short support plate can also extend and contract along the feeding side of the support mechanism to adjust the length of the long support plate and the short support plate extending outwards; The hook arm assembly is provided with a bent hook arm, the bent hook arm can reciprocate up and down along the feeding side of the support mechanism, and there is a bent arm between the end and the starting end of the bent hook arm, forming a bent space; a flipping structure is also provided at the top of the support mechanism, and the bent hook arm moves up and down through the flipping structure; When the main body of the support mechanism inclines towards its feeding side, the main body of the support mechanism forms an obtuse angle with the horizontal direction, the bottom end of the vertically placed plate is supported by the short support plate and the long support plate, and is supported on the side by the end, and the feeding side of the support mechanism is the front side; When the bent hook arm and the short support plate are lifted simultaneously, a height difference is formed between the short support plate and the long support plate; The plate supported by the short support plate is lifted with the bent hook arm and the short support plate. The plate that is not lifted is vertically placed on the long support plate. After the bent hook arm moves up simultaneously with the short support plate and a height difference is formed between the short support plate and the long support plate, the bent hook arm moves down again to support the front side of the plate on the short support plate; the plate supported by the long support plate falls off the long support plate under the action of gravity at the moment when the end of the bent hook arm disengages from the side of the plate.

2. The unloading device for vertically placed plates according to claim 1, characterized in that, the support mechanism includes a hollow support frame, and the short support assembly and the long support assembly are fixedly installed on the support frame; The support frame is also provided with a first lifting structure and a second lifting structure, and the fixed ends of the first lifting structure and the second lifting structure are fixed to the support frame; The movable end of the first lifting structure is connected to the short support assembly and drives the main body of the short support assembly to reciprocate up and down in the vertical direction, and the movable end of the second lifting structure is connected to the long support assembly and drives the main body of the long support assembly to reciprocate up and down in the vertical direction.

3. The unloading device for vertically placed plates according to claim 2, characterized in that, the support frame is provided with two vertical connecting columns, which are respectively the first connecting column and the second connecting column; vertical guide rails are provided on the sides of the first connecting column and the second connecting column; The short support assembly further includes a first slider, and the first slider is provided with a first guide groove for sliding with the guide bar. The first guide groove is clamped on the guide bar, so that the short support assembly can reciprocate up and down along the first connecting column; The long support assembly further includes a second slider, and the second slider is provided with a second guide groove for sliding with the guide bar. The second guide groove is clamped on the guide bar, so that the long support assembly can reciprocate up and down along the second connecting column.

4. An unloading device for vertically placed plates according to claim 1, wherein, both the short support assembly and the long support assembly are provided with a sliding cavity and a telescopic assembly; Both sides of the front and back of the sliding cavity are provided with openings, and a strip-shaped notch is provided at the bottom of the sliding cavity; The connecting end of the telescopic assembly is fixedly connected to the short support assembly and the long support assembly, and its output end is connected to the bottom surfaces of the short support plate and the long support plate through the strip-shaped notch, and drives the short support plate and the long support plate to reciprocate back and forth along the sliding cavity.

5. An unloading device for vertically placed plates according to claim 4, wherein, Both the short support assembly and the long support assembly are further provided with a connecting groove, and the connecting groove communicates with the sliding cavity through the strip-shaped notch; Rack teeth are provided on the back surfaces of the short support plate and the long support plate; The telescopic assembly includes a driving motor, a rotating shaft and a gear. The driving motor is fixedly installed on the short support assembly and the long support assembly. One end of the rotating shaft is sleeved on the output end, and the other end passes through both sides of the connecting groove, and its end is fixedly installed on the side away from the driving motor; The inside of the gear is communicated by the rotating shaft, and the external teeth of the gear are clamped in the strip-shaped notch and meshed with the rack teeth.

6. An unloading device for vertically placed plates according to claim 1, wherein, The base further includes a fixing bracket, and the fixing bracket includes a first bracket and a second bracket; One end of the first bracket is fixedly connected to the base, and the other end is inclined backward; One end of the second bracket is fixedly connected to the base, and the other end is inclined forward and connected to the first bracket.

7. An unloading device for vertically placed plates according to claim 1, wherein, The flipping structure includes an oil cylinder and a hinge seat; The starting end of the bent hook arm is provided with a first hinge portion and a second hinge portion. The oil cylinder is hinged to the first hinge portion through a rotating shaft, and the hinge seat is hinged to the second hinge portion through a rotating shaft.

8. An unloading device for vertically placed plates according to claim 1, wherein, A connecting seat is further provided on the top of the base, and the bottom of the support mechanism is hinged to the connecting seat, so that the support mechanism can swing around the connecting seat.

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