An automatic tray stacking and unstacking machine

Abstract

This invention belongs to the technical field of tray stacking and destacking machines, and specifically relates to an automatic tray stacking and destacking machine. The technical solution is as follows: An automatic tray stacking and destacking machine includes a base frame, a machine frame connected to the base frame, a conveying mechanism mounted on the base frame, a lifting drive mechanism installed inside the base frame, a guide plate connected to the output end of the lifting drive mechanism, a guide post connected between the base frame and the machine frame, the guide plate sleeved on the guide post, and a frame lifting mechanism connected to the guide post; the frame lifting mechanism has stop mechanisms at both the front and rear, and the stop mechanisms are installed inside the base frame; the machine frame is equipped with several frame-holding mechanisms for uprighting empty frames, and a tilting drive mechanism is also installed on the machine frame, with the output end of the tilting drive mechanism connected to several frame-holding mechanisms respectively. This invention provides an automatic tray stacking and destacking machine that can stably stack or destacking trays.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of disassembling and stacking machines, in particular to an automatic stacking and disassembling machine. BACKGROUND

[0002] In view of the collection and stacking of empty trays (frames, basins), disassembling and stacking machines are born, and there are many kinds of disassembling and stacking machines suitable for various occasions. Patent application No. CN201520579539.7 discloses a disassembling and stacking machine, which relates to the field of logistics assembly equipment. A motor mounting plate and a fixed plate are arranged in the frame of the disassembling and stacking machine. The motor is fixedly installed on the motor mounting plate. A sliding rail assembly is installed on the frame of the disassembling and stacking machine. A lifting fork assembly is arranged in the middle of the frame of the disassembling and stacking machine. A bearing limiting sleeve is connected to the lower end of the lifting fork assembly. A thrust ball bearing and a first deep groove ball bearing are arranged between the lifting fork assembly and the bearing limiting sleeve. The upper end of the lifting fork assembly is fixedly connected with a bearing cover through a screw rod top plate and an upper bearing adjusting plate at the upper end of the frame of the disassembling and stacking machine. The hollow shaft motor drive and the ball screw are adopted to realize the up-down reciprocating motion. Not only the labor cost and space cost are greatly saved, but also the working stability is improved. The disassembling and stacking machine can work at high speed. In the case of power failure, the self-locking function can be realized to ensure the safety of the system, and it is suitable for medium-load high-speed occasions.

[0003] However, the existing disassembling and stacking machine cannot stably disassemble or stack the tray (frame, basin), which is easy to cause the empty tray (frame, basin) to be stuck or to be dumped. SUMMARY

[0004] In order to solve the above-mentioned problems existing in the prior art, the purpose of the present application is to provide an automatic stacking and disassembling machine which can stably disassemble or stack the tray.

[0005] The technical scheme adopted by the present application is as follows:

[0006] An automatic stacking and disassembling machine, comprising a chassis, a rack connected to the chassis, a conveying mechanism installed on the chassis, a lifting drive mechanism installed in the chassis, a guide plate connected to the output end of the lifting drive mechanism, a guide column connected between the chassis and the rack, the guide plate being sleeved on the guide column, and a frame lifting mechanism connected to the guide plate; a stop rod mechanism is arranged in front of and behind the frame lifting mechanism, and the stop rod mechanism is installed in the chassis; a plurality of frame stopping mechanisms for righting the empty frame are installed on the rack, and a tilting drive mechanism is also installed on the rack, and the output end of the tilting drive mechanism is connected with the plurality of frame stopping mechanisms.

[0007] During the stacking process, the conveying mechanism continuously transports empty frames to the lifting mechanism, where a front stop mechanism blocks the empty frames. The lifting mechanism inserts into the frame edge, and the lifting drive mechanism raises it, thus lifting the empty frame. The next empty frame enters the lifting mechanism area, and the lifting mechanism lowers, causing the two frames to overlap. During the stacking process, the tilting drive mechanism drives the stop mechanism to rotate, which then straightens the empty frames. By continuously performing these operations, the stacking process is completed.

[0008] During the dismantling process, the tilting drive mechanism drives the baffle mechanism to rotate, which straightens the overlapping empty frames. The lifting mechanism is inserted into the position where dismantling is needed, and the lifting drive mechanism drives the lifting mechanism to rise. The empty frames below the lifting mechanism are not lifted but remain on the conveyor mechanism. Lowering the front baffle mechanism allows the dismantled empty frames to be conveyed away, completing the dismantling operation.

[0009] When the lifting drive mechanism of this invention drives the guide plate to rise and fall, the guide column guides the guide plate, so that the lifting frame mechanism can smoothly lift or lower the empty frame. During the process of lifting or lowering the empty frame, the frame blocking mechanism rotates to a position close to the empty frame, thereby straightening the overlapping empty frames and preventing them from jamming or tipping over. This invention can smoothly perform stacking or unstacking, ensuring continuous stacking or unstacking.

[0010] In a preferred embodiment of the present invention, the lifting drive mechanism includes an electric cylinder mounted within a base frame. A rack is connected to the piston rod of the electric cylinder. A transmission shaft is rotatably connected within the base frame, and a gear is mounted on the transmission shaft. The gear meshes with the rack. A rotating arm is connected to one end of the rotating shaft, and a connecting rod is hinged to the other end of the rotating arm. The other end of the connecting rod is hinged to a guide plate. The electric cylinder drives the rack to move, and the rack drives the gear to rotate. Correspondingly, the transmission shaft drives the rotating arm to rotate, thereby the rotating arm drives the connecting rod to move. When the connecting rod moves, the guide plate is smoothly pushed, thereby enabling the guide plate to drive the lifting frame mechanism to rise or fall.

[0011] In a preferred embodiment of the present invention, the frame lifting mechanism includes a frame lifting cylinder mounted on a guide plate. A cylinder connecting plate is connected to the piston rod of the frame lifting cylinder, and a latch is connected to the cylinder connecting plate. A sleeve is fixed on the guide plate, and the latch is fitted inside the sleeve. When the piston rod of the frame lifting cylinder retracts, the cylinder connecting plate drives the latch to extend and insert into the lower side of the frame edge. When the lifting mechanism drives the frame lifting mechanism to rise, the latch can lift the empty frame. The sleeve can limit the latch, ensuring its stability and making the lifting or lowering of the empty frame more smooth.

[0012] In a preferred embodiment of the present invention, the frame retaining mechanism includes a plurality of central rotating shafts rotatably connected to the frame. Each central rotating shaft is connected to the output end of a tilting drive mechanism. A corner block is fixed to each central rotating shaft, and the other end of each corner block is connected to a corner guard plate for straightening empty frames. When the tilting drive mechanism drives the central rotating shafts of the frame retaining mechanism to rotate, the central rotating shafts drive the corner blocks to rotate, thereby causing the corner guard plates to rotate accordingly. During the stacking or unstacking process, the corner guard plates rotate to a position close to the empty frames, thereby straightening the overlapping empty frames.

[0013] In a preferred embodiment of the present invention, the tilting drive mechanism includes a tilting cylinder hinged to the frame, a sector gear connected to the central rotating shaft, and a piston rod of the tilting cylinder hinged to one of the sector gears. Several sector gears are grouped in pairs and mesh with each other. A connecting rod is hinged between one sector gear in one group and one sector gear in another group. The tilting cylinder drives one sector gear to rotate, and the other sector gear meshing with it rotates accordingly. Adjacent groups of sector gears are transmitted through the connecting rod, thus all sector gears rotate synchronously. Under the drive of the tilting drive mechanism, all corner guards open or close synchronously.

[0014] In a preferred embodiment of the present invention, the conveying mechanism includes a motor, the output end of which is connected to a reducer. A row of rollers is rotatably connected to the base frame, and the output end of the reducer is connected to several rollers via a chain drive. When the motor drives the reducer, the output shaft of the reducer drives several rollers to rotate via a chain drive, thereby allowing the empty frame above the rollers to be continuously conveyed.

[0015] In a preferred embodiment of the present invention, the stop mechanism includes a bracket, on which a stop cylinder is mounted. A key plate is connected to the piston rod of the stop cylinder, and a stop rod is connected to the key plate, passing through the conveying mechanism. When the piston rod of the stop cylinder rises, the key plate and the stop rod rise. The stop rod passes through the roller gap of the conveying mechanism, thereby blocking the empty frame and allowing the empty frame to remain in the stacking or unstacking position.

[0016] In a preferred embodiment of the present invention, a guide rod is provided above the conveying mechanism, an adjusting support rod is fixed on the guide rod, and an adjusting seat is fixed on the frame. The adjusting support rod is sleeved inside the adjusting seat, and a locking handle for locking the adjusting support rod is connected to the adjusting seat. During the conveying of empty frames, the guide rod guides the empty frames, ensuring that the empty frames smoothly enter the stacking and unpacking area. The position of the adjusting support rod within the adjusting seat is adjustable, so that the spacing between the guide rods on both sides can accommodate empty frames of different widths.

[0017] In a preferred embodiment of the present invention, the frame is equipped with a frame-shifting mechanism, which includes a fork holder fixed to the frame. A plurality of longitudinally arranged fork cylinders are fixed to the fork holder, and blade forks are fixed to the piston rods of the fork cylinders. During the disassembly process, when the frame-lifting mechanism lifts the upper empty frame, the blade forks prevent the lower empty frame from rising, thereby preventing the lower empty frame from being lifted by the upper empty frame and ensuring accurate disassembly.

[0018] In a preferred embodiment of the present invention, guide plates are provided on both sides of the frame, and baffle rods are fixed on the frame, with the guide plates fixed to the baffle rods. The guide plates guide the overlapping empty frames to prevent them from tilting.

[0019] The beneficial effects of this invention are as follows:

[0020] When the lifting drive mechanism of this invention drives the guide plate to rise and fall, the guide column guides the guide plate, so that the lifting frame mechanism can smoothly lift or lower the empty frame. During the process of lifting or lowering the empty frame, the frame blocking mechanism rotates to a position close to the empty frame, thereby straightening the overlapping empty frames and preventing them from jamming or tipping over. This invention can smoothly perform stacking or unstacking, ensuring continuous stacking or unstacking. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention in the first direction in Embodiment 1;

[0022] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle;

[0024] Figure 4 This is a schematic diagram of the structure of the present invention in the second direction in Embodiment 1;

[0025] Figure 5 This is a schematic diagram of the structure of the present invention after removing the empty frame;

[0026] Figure 6 This is a schematic diagram of the stop mechanism;

[0027] Figure 7 This is a schematic diagram of the lifting drive mechanism;

[0028] Figure 8 This is a schematic diagram of the structure of the present invention in Embodiment 2;

[0029] Figure 9 This is a partial structural diagram of the present invention in Embodiment 2.

[0030] In the diagram: 1-Base frame; 2-Frame; 3-Conveying mechanism; 4-Lifting drive mechanism; 5-Frame lifting mechanism; 6-Stop mechanism; 7-Frame stop mechanism; 8-Tilting drive mechanism; 9-Frame shifting mechanism; 11-Guide rail; 21-Guide plate; 22-Guide column; 23-Guide rod; 24-Adjusting support rod; 25-Adjusting seat; 26-Locking handle; 27-Guide plate; 28-Frame stop rod; 31-Motor; 32-Reducer; 33-Roller; 41-Electric cylinder; 42-Gear 43-Transmission shaft; 44-Gear; 45-Rotating arm; 46-Connecting rod; 47-Slider; 51-Lifting frame cylinder; 52-Cylinder connecting plate; 53-Linger lock; 54-Sleeve; 61-Bracket; 62-Stop cylinder; 63-Key bar plate; 64-Stop rod; 71-Center shaft; 72-Corner block; 73-Corner guard plate; 81-Tilting cylinder; 82-Sector gear; 83-Connecting rod; 91-Knife and fork seat; 92-Knife and fork cylinder; 93-Knife fork. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the invention can be combined with each other.

[0033] Example 1:

[0034] like Figures 1-7 As shown, this embodiment is an automatic tray stacking machine, including a base frame 1, a frame 2 connected to the base frame 1, a conveying mechanism 3 installed on the base frame 1, a lifting drive mechanism 4 installed inside the base frame 1, a guide plate 21 connected to the output end of the lifting drive mechanism 4, a guide post 22 connected between the base frame 1 and the frame 2, the guide plate 21 sleeved on the guide post 22, and a frame lifting mechanism 5 connected to the guide plate 21; the frame lifting mechanism 5 is provided with a stop bar mechanism 6 at both the front and rear, and the stop bar mechanism 6 is installed inside the base frame 1; four frame stop mechanisms 7 are installed on the frame 2 to straighten the four corners of the empty frame, and a tilting drive mechanism 8 is also installed on the frame 2, the output end of the tilting drive mechanism 8 being connected to several frame stop mechanisms 7 respectively.

[0035] During the stacking process, the conveying mechanism 3 continuously transports empty frames to the lifting mechanism 5, where the front stop mechanism 6 blocks the empty frames. The lifting mechanism 5 inserts into the frame edge, and the lifting drive mechanism 4 raises it, thus lifting the empty frame accordingly. The next empty frame then enters the area of ​​the lifting mechanism 5, which lowers, causing the two frames to overlap. During the stacking process, the tilting drive mechanism 8 drives the stop mechanism 7 to rotate, which straightens the empty frames. By continuously performing the above operations, the stacking operation is completed.

[0036] When the lifting drive mechanism 4 of the present invention drives the guide plate 21 to rise or fall, the guide column 22 guides the guide plate 21, so that the frame lifting mechanism 5 can smoothly lift or lower the empty frame. During the process of the empty frame being lifted or lowered, the frame blocking mechanism 7 rotates to a position close to the empty frame, thereby straightening the overlapping empty frames and preventing the empty frames from jamming or tipping over. The present invention can smoothly perform stacking or dismantling of trays, ensuring that stacking or dismantling of trays can be carried out continuously.

[0037] Specifically, the lifting drive mechanism 4 includes an electric cylinder 41 installed within the base frame 1. A rack 42 is connected to the piston rod of the electric cylinder 41. A transmission shaft 43 is rotatably connected within the base frame 1, and a gear 44 is mounted on the transmission shaft 43. The gear 44 meshes with the rack 42. A rotating arm 45 is connected to one end of the shaft, and a connecting rod 46 is hinged to the other end of the rotating arm 45. The other end of the connecting rod 46 is hinged to the guide plate 21. The electric cylinder 41 drives the rack 42 to move, and the rack 42 drives the gear 44 to rotate. Correspondingly, the transmission shaft 43 drives the rotating arm 45 to rotate, thereby causing the rotating arm 45 to move the connecting rod 46. When the connecting rod 46 moves, the guide plate 21 is smoothly pushed, thereby enabling the guide plate 21 to raise or lower the lifting frame mechanism 5.

[0038] It should be noted that both ends of the rotating shaft are connected to rotating arms 45, so that when the electric cylinder 41 drives the rack 42 to move, the guide plates 21 on both sides rise and fall synchronously, and the lifting mechanisms 5 on both sides move synchronously to lift the empty frame from both sides, ensuring stable lifting of the frame. A guide rail 11 is fixed inside the base frame 1, and a slider 47 is installed at the bottom of the rack 42, which is sleeved on the guide rail 11. During the process of the electric cylinder 41 driving the rack 42 to move, the guide rail 11 guides the slider 47 to ensure that the rack 42 moves smoothly, so that the rack 42 can always reliably mesh with the gear 44.

[0039] Specifically, the frame lifting mechanism 5 includes a frame lifting cylinder 51 mounted on a guide plate 21. A cylinder connecting plate 52 is connected to the piston rod of the frame lifting cylinder 51, and a tongue lock 53 is connected to the cylinder connecting plate 52. A sleeve 54 is fixed on the guide plate 21, and the tongue lock 53 is fitted inside the sleeve 54. When the piston rod of the frame lifting cylinder 51 retracts, the cylinder connecting plate 52 drives the tongue lock 53 to extend and insert into the lower side of the frame edge. When the lifting drive mechanism 4 drives the frame lifting mechanism 5 to rise, the tongue lock 53 can lift the empty frame. The sleeve 54 can limit the tongue lock 53, ensuring the stability of the tongue lock 53 and making the empty frame more stable when it is lifted or lowered.

[0040] It should be noted that both ends of the cylinder connecting plate 52 are connected to tongue locks 53, so there are a total of four tongue locks 53 around the empty frame. The four tongue locks 53 lift the empty frame synchronously from different positions to ensure lifting stability.

[0041] Specifically, the baffle mechanism 7 includes four central rotating shafts 71 rotatably connected to the frame 2. Each central rotating shaft 71 is connected to the output end of the tilting drive mechanism 8. Corner blocks 72 are fixed to each central rotating shaft 71, and the other end of each corner block 72 is connected to a corner guard 73 for straightening empty frames. When the tilting drive mechanism 8 drives the central rotating shafts 71 of the baffle mechanism 7 to rotate, the central rotating shafts 71 drive the corner blocks 72 to rotate, thereby causing the corner guards 73 to rotate accordingly. During the stacking process, the corner guards 73 rotate to a position close to the empty frames, thereby straightening the overlapping empty frames. The corner guards 73 are right-angled and are used to straighten the turning points of overlapping empty frames. The corner guards 73 do not obstruct the bottom empty frame, allowing subsequent empty frames to smoothly enter the stacking area.

[0042] Specifically, the tilting drive mechanism 8 includes a tilting cylinder 81 hinged to the frame 2. A sector gear 82 is connected to the central rotating shaft 71. The piston rod of the tilting cylinder 81 is hinged to one of the sector gears 82. There are two groups of sector gears 82. A connecting rod 83 is hinged between one sector gear 82 in one group and one sector gear 82 in the other group. The tilting cylinder 81 drives one sector gear 82 to rotate, and the other sector gear 82 meshing with it rotates accordingly. Adjacent groups of sector gears 82 are transmitted through the connecting rod 83, so that all sector gears 82 rotate synchronously. Under the drive of the tilting drive mechanism 8, all corner guards 73 open or close synchronously.

[0043] Specifically, the conveying mechanism 3 includes a motor 31, the output end of which is connected to a reducer 32. A row of rollers 33 is rotatably connected to the base frame 1. The output end of the reducer 32 is connected to the rollers 33 via a chain drive. When the motor 31 drives the reducer 32, the output shaft of the reducer 32 drives the rollers 33 to rotate via a chain drive, thereby allowing the empty frame above the rollers 33 to be continuously conveyed.

[0044] Specifically, the stop mechanism 6 includes a bracket 61, on which a stop cylinder 62 is mounted. A key plate 63 is connected to the piston rod of the stop cylinder 62, and a stop rod 64 is connected to the key plate 63. The stop rod 64 passes through the conveying mechanism 3. When the piston rod of the stop cylinder 62 rises, the key plate 63 and the stop rod 64 rise. The stop rod 64 passes through the gap between the rollers 33 of the conveying mechanism 3, thereby blocking the empty frame and allowing the empty frame to remain in the stacking or unstacking position.

[0045] Furthermore, a guide rod 23 is provided above the conveying mechanism 3, and an adjusting support rod 24 is fixed on the guide rod 23. An adjusting seat 25 is fixed on the frame 2, and the adjusting support rod 24 is sleeved inside the adjusting seat 25. A locking handle 26 for locking the adjusting support rod 24 is connected to the adjusting seat 25. During the conveying of empty frames, the guide rod 23 can guide the empty frames to ensure that they smoothly enter the stacking and unpacking area. The position of the adjusting support rod 24 within the adjusting seat 25 can be adjusted, so that the distance between the guide rods 23 on both sides can accommodate empty frames of different widths.

[0046] Furthermore, guide plates 27 are provided on both sides of the frame 2, and baffle rods 28 are fixed on the frame 2, with the guide plates 27 fixed to the baffle rods 28. The guide plates 27 guide the overlapping empty frames to prevent them from tilting.

[0047] The stacking process:

[0048] The conveying mechanism 3 continuously transports empty frames to the lifting mechanism 5. The front stop mechanism 6 blocks the empty frames, and the rear stop mechanism 6 blocks the next empty frame. The tilting drive mechanism 8 drives the central shaft 71 to rotate, and the corner guard 73 rotates to a position close to the corner of the empty frame. The latch 53 of the lifting mechanism 5 extends and inserts under the edge of the empty frame. The lifting drive mechanism 4 drives the guide plate 21 to rise, and the latch 53 lifts the empty frame. The rear stop mechanism 6 opens, and the next empty frame enters the lifting mechanism 5 area. The latch 53 of the lifting mechanism 5 retracts, and the two empty frames overlap. The above steps are repeated to overlap several empty frames. Finally, the tilting drive mechanism 8 drives the central shaft 71 to rotate in the opposite direction, the corner guard 73 opens, and the front stop mechanism 6 lowers, thus the stacked empty frames are sent out by the conveying mechanism 3.

[0049] Example 2:

[0050] like Figures 1-9As shown, the automatic tray-removing machine of this embodiment includes a base frame 1, a frame 2 connected to the base frame 1, a conveying mechanism 3 installed on the base frame 1, a lifting drive mechanism 4 installed inside the base frame 1, a guide plate 21 connected to the output end of the lifting drive mechanism 4, a guide column 22 connected between the base frame 1 and the frame 2, the guide plate 21 being sleeved on the guide column 22, and a frame lifting mechanism 5 connected to the guide plate 21; a stop bar mechanism 6 is provided at the front and rear of the frame lifting mechanism 5, and the stop bar mechanism 6 is installed inside the base frame 1; a plurality of frame-holding mechanisms 7 for straightening empty frames are installed on the frame 2, and a tilting drive mechanism 8 is also installed on the frame 2, the output end of the tilting drive mechanism 8 being connected to a plurality of frame-holding mechanisms 7 respectively.

[0051] During the dismantling process, the tilting drive mechanism 8 drives the baffle mechanism 7 to rotate, and the baffle mechanism 7 straightens the overlapping empty frames. The lifting mechanism 5 is inserted into the position where the dismantling is needed, and the lifting drive mechanism 4 drives the lifting mechanism 5 to rise. The empty frames below the lifting mechanism 5 are not lifted but remain on the conveying mechanism 3. Lowering the front baffle mechanism 6 allows the dismantled empty frames to be conveyed away, completing the dismantling operation.

[0052] When the lifting drive mechanism 4 of the present invention drives the guide plate 21 to rise or fall, the guide column 22 guides the guide plate 21, so that the frame lifting mechanism 5 can smoothly lift or lower the empty frame. During the process of the empty frame being lifted or lowered, the frame blocking mechanism 7 rotates to a position close to the empty frame, thereby straightening the overlapping empty frames and preventing the empty frames from jamming or tipping over. The present invention can smoothly perform stacking or dismantling of trays, ensuring that stacking or dismantling of trays can be carried out continuously.

[0053] Specifically, the lifting drive mechanism 4 includes an electric cylinder 41 installed within the base frame 1. A rack 42 is connected to the piston rod of the electric cylinder 41. A transmission shaft 43 is rotatably connected within the base frame 1, and a gear 44 is mounted on the transmission shaft 43. The gear 44 meshes with the rack 42. A rotating arm 45 is connected to one end of the shaft, and a connecting rod 46 is hinged to the other end of the rotating arm 45. The other end of the connecting rod 46 is hinged to the guide plate 21. The electric cylinder 41 drives the rack 42 to move, and the rack 42 drives the gear 44 to rotate. Correspondingly, the transmission shaft 43 drives the rotating arm 45 to rotate, thereby causing the rotating arm 45 to move the connecting rod 46. When the connecting rod 46 moves, the guide plate 21 is smoothly pushed, thereby enabling the guide plate 21 to raise or lower the lifting frame mechanism 5.

[0054] It should be noted that both ends of the rotating shaft are connected to rotating arms 45, so that when the electric cylinder 41 drives the rack 42 to move, the guide plates 21 on both sides rise and fall synchronously, and the lifting mechanisms 5 on both sides move synchronously to lift the empty frame from both sides, ensuring stable lifting of the frame. A guide rail 11 is fixed inside the base frame 1, and a slider 47 is installed at the bottom of the rack 42, which is sleeved on the guide rail 11. During the process of the electric cylinder 41 driving the rack 42 to move, the guide rail 11 guides the slider 47 to ensure that the rack 42 moves smoothly, so that the rack 42 can always reliably mesh with the gear 44.

[0055] Specifically, the frame lifting mechanism 5 includes a frame lifting cylinder 51 mounted on a guide plate 21. A cylinder connecting plate 52 is connected to the piston rod of the frame lifting cylinder 51, and a tongue lock 53 is connected to the cylinder connecting plate 52. A sleeve 54 is fixed on the guide plate 21, and the tongue lock 53 is fitted inside the sleeve 54. When the piston rod of the frame lifting cylinder 51 retracts, the cylinder connecting plate 52 drives the tongue lock 53 to extend and insert into the lower side of the frame edge. When the lifting drive mechanism 4 drives the frame lifting mechanism 5 to rise, the tongue lock 53 can lift the empty frame. The sleeve 54 can limit the tongue lock 53, ensuring the stability of the tongue lock 53 and making the empty frame more stable when it is lifted or lowered.

[0056] It should be noted that both ends of the cylinder connecting plate 52 are connected to tongue locks 53, so there are a total of four tongue locks 53 around the empty frame. The four tongue locks 53 lift the empty frame synchronously from different positions to ensure lifting stability.

[0057] Specifically, the baffle mechanism 7 includes four central rotating shafts 71 rotatably connected to the frame 2. Each central rotating shaft 71 is connected to the output end of the tilting drive mechanism 8. Corner blocks 72 are fixed to each central rotating shaft 71, and the other end of each corner block 72 is connected to a corner guard plate 73 for straightening empty frames. When the tilting drive mechanism 8 drives the central rotating shafts 71 of the baffle mechanism 7 to rotate, the central rotating shafts 71 drive the corner blocks 72 to rotate, thereby causing the corner guard plates 73 to rotate accordingly. During the disassembly process, the corner guard plates 73 rotate to a position close to the empty frames, thereby straightening the overlapping empty frames. The corner guard plates 73 are right-angled and are used to straighten the turning points of overlapping empty frames. The corner guard plates 73 do not obstruct the multiple empty frames at the bottom, allowing the disassembled empty frames to be transported away smoothly.

[0058] Specifically, the tilting drive mechanism 8 includes a tilting cylinder 81 hinged to the frame 2. A sector gear 82 is connected to the central rotating shaft 71. The piston rod of the tilting cylinder 81 is hinged to one of the sector gears 82. There are two groups of sector gears 82. A connecting rod 83 is hinged between one sector gear 82 in one group and one sector gear 82 in the other group. The tilting cylinder 81 drives one sector gear 82 to rotate, and the other sector gear 82 meshing with it rotates accordingly. Adjacent groups of sector gears 82 are transmitted through the connecting rod 83, so that all sector gears 82 rotate synchronously. Under the drive of the tilting drive mechanism 8, all corner guards 73 open or close synchronously.

[0059] Specifically, the conveying mechanism 3 includes a motor 31, the output end of which is connected to a reducer 32. A row of rollers 33 is rotatably connected to the base frame 1. The output end of the reducer 32 is connected to the rollers 33 via a chain drive. When the motor 31 drives the reducer 32, the output shaft of the reducer 32 drives the rollers 33 to rotate via a chain drive, thereby allowing the empty frame above the rollers 33 to be continuously conveyed.

[0060] Specifically, the stop mechanism 6 includes a bracket 61, on which a stop cylinder 62 is mounted. A key plate 63 is connected to the piston rod of the stop cylinder 62, and a stop rod 64 is connected to the key plate 63. The stop rod 64 passes through the conveying mechanism 3. When the piston rod of the stop cylinder 62 rises, the key plate 63 and the stop rod 64 rise. The stop rod 64 passes through the gap between the rollers 33 of the conveying mechanism 3, thereby blocking the empty frame and allowing the empty frame to remain in the stacking or unstacking position.

[0061] Furthermore, a guide rod 23 is provided above the conveying mechanism 3, and an adjusting support rod 24 is fixed on the guide rod 23. An adjusting seat 25 is fixed on the frame 2, and the adjusting support rod 24 is sleeved inside the adjusting seat 25. A locking handle 26 for locking the adjusting support rod 24 is connected to the adjusting seat 25. During the conveying of empty frames, the guide rod 23 can guide the empty frames to ensure that they smoothly enter the stacking and unpacking area. The position of the adjusting support rod 24 within the adjusting seat 25 can be adjusted, so that the distance between the guide rods 23 on both sides can accommodate empty frames of different widths.

[0062] Furthermore, the frame 2 is equipped with a frame-shifting mechanism 9, which includes a fork and cutlery seat 91 fixed to the frame 2. Several longitudinally arranged fork and cutlery cylinders 92 are fixed to the fork and cutlery seat 91, and blade forks 93 are fixed to the piston rods of the cylinders 92. During the disassembly process, when the frame-lifting mechanism 5 lifts the upper empty frame, the blade forks 93 can prevent the lower empty frame from rising, thus preventing the lower empty frame from being lifted by the upper empty frame and ensuring accurate disassembly.

[0063] Furthermore, guide plates 27 are provided on both sides of the frame 2, and baffle rods 28 are fixed on the frame 2, with the guide plates 27 fixed to the baffle rods 28. The guide plates 27 guide the overlapping empty frames to prevent them from tilting.

[0064] The process of disassembling the plate:

[0065] The conveying mechanism 3 transports the overlapping empty frames to the dismantling position, where the front stop mechanism blocks the overlapping empty frames. The tilting drive mechanism 8 drives the central shaft 71 to rotate, and the corner guard 73 rotates to a position close to the corner of the empty frame. Depending on the number of empty frames to be removed, the servo cylinder 41 drives the rack 42 to move a predetermined distance, and the guide plate 21 rises to the corresponding height. The tongue lock 53 of the lifting mechanism 5 extends and inserts into the lower side of the empty frame edge; the blade fork 93 of the frame-shifting mechanism 9 inserts into the lower side of the next layer of empty frames. The lifting drive mechanism 4 drives the guide plate 21 to rise, and the empty frames below are peeled off. The front stop mechanism opens, and the peeled-off empty frames are conveyed away. The above steps are repeated to dismantle several empty frames in sequence. Finally, the tilting drive mechanism 8 drives the central shaft 71 to rotate in the opposite direction, the corner guard 73 opens, and the front stop mechanism 6 lowers, so that the next stack of empty frames enters the dismantling area.

[0066] There are multiple cutlery cylinders 92, corresponding sequentially to multiple empty frames from bottom to top. The electric cylinder 41 of the plate-removing machine is a servo electric cylinder 41, used to adjust the distance the drive rack 42 moves, thus the lifting distance of the frame-lifting mechanism 5 can be adjusted. Therefore, a specific number of empty frames can be peeled off sequentially as needed.

[0067] This invention is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this invention. However, regardless of any changes made in their shape or structure, any technical solution that falls within the scope of the claims of this invention shall be protected by this invention.

Claims

1. An automatic tray stacking and unstacking machine characterized by: The utility model provides a kind of frame lifting device, including chassis (1), rack (2) is connected on chassis (1), conveying mechanism (3) is installed on chassis (1), lifting drive mechanism (4) is installed in chassis (1), the output of lifting drive mechanism (4) is connected with guide plate (21), guide column (22) is connected between chassis (1) and rack (2), guide plate (21) is sleeved on guide column (22), lifting frame mechanism (5) is connected on guide plate (21);The front and rear of the lifting frame mechanism (5) are provided with stop lever mechanism (6), and the stop lever mechanism (6) is installed in the chassis (1);Rack (2) is installed with a plurality of frame supporting mechanism (7) for righting empty frame, rack (2) is also installed with tilting drive mechanism (8), and the output of tilting drive mechanism (8) is connected with a plurality of frame supporting mechanism (7) respectively; The lifting drive mechanism (4) includes electric cylinder (41) installed in the chassis (1), the piston rod of electric cylinder (41) is connected with rack (42), the transmission shaft (43) is rotatably connected in the chassis (1), the gear (44) is installed on the transmission shaft (43), the gear (44) is engaged with the rack (42), the end of the shaft is connected with the swing arm (45), the other end of the swing arm (45) is hinged with the connecting rod (46), and the other end of the connecting rod (46) is hinged with the guide plate (21); The lifting frame mechanism (5) includes lifting frame cylinder (51) installed on the guide plate (21), the piston rod of lifting frame cylinder (51) is connected with cylinder connecting plate (52), cylinder connecting plate (52) is connected with tongue lock (53), and the guide plate (21) is fixed with bushing (54), and the tongue lock (53) is sleeved in the bushing (54); The frame supporting mechanism (7) includes a plurality of central shafts (71) rotatably connected to the rack (2), the central shaft (71) is connected with the output end of the tilting drive mechanism (8), the central shaft (71) is fixed with the corner block (72), and the other end of the corner block (72) is connected with the corner guard plate (73) for righting empty frame; The tilting drive mechanism (8) includes tilting cylinder (81) hinged to the rack (2), the central shaft (71) is connected with the sector gear (82), the piston rod of the tilting cylinder (81) is hinged with one of the sector gears (82), a plurality of sector gears (82) are two for a group and are engaged with each other, and the sector gear (82) in one group is hinged with the sector gear (82) in another group through the embracing connecting rod (83).

2. The automatic tray stacking and unstacking machine according to claim 1, characterized in that: The conveying mechanism (3) includes motor (31), the output of motor (31) is connected with speed reducer (32), a row of roller cylinders (33) are rotatably connected on the chassis (1), and the output of the speed reducer (32) is connected with a plurality of roller cylinders (33) through chain transmission.

3. The automatic tray stacking and unstacking machine according to claim 1, characterized in that: The stop lever mechanism (6) includes support (61), stop lever cylinder (62) is installed on support (61), the piston rod of stop lever cylinder (62) is connected with key strip plate (63), stop lever (64) is connected on key strip plate (63), and stop lever (64) passes through conveying mechanism (3).

4. The automatic tray stacking and unstacking machine according to claim 1, characterized in that: The conveying mechanism (3) is provided with a guide rod (23) above, the guide rod (23) is fixed with an adjusting support rod (24), the rack (2) is fixed with an adjusting seat (25), the adjusting support rod (24) is sleeved in the adjusting seat (25), and the adjusting seat (25) is connected with a locking handle (26) for locking the adjusting support rod (24).

5. The automatic tray stacking and unstacking machine according to claim 1, characterized in that: The rack (2) is provided with a frame shifting mechanism (9), the frame shifting mechanism (9) comprises a knife fork seat (91) fixed on the rack (2), a plurality of knife fork air cylinders (92) are fixed on the knife fork seat (91) and arranged longitudinally, and a blade fork (93) is fixed on the piston rod of the knife fork air cylinder (92).

6. The automatic tray stacking and unstacking machine according to any one of claims 1 to 5, characterized in that: The rack (2) is provided with guide plates (27) on both sides, the rack (2) is fixed with a frame blocking rod (28), and the guide plates (27) are fixed on the frame blocking rod (28).

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