Stacked plate conveying and packaging device

Abstract

The utility model relates to the technical field of plate packaging, in particular to a stacked plate conveying and packaging device. And a packaging mechanism is arranged on one side of the unstacking and conveying mechanism. According to the lifting device, after the baffle in one lifting assembly makes contact with the side, not needing to be lifted, of the plate body, the lifting plate in the other lifting assembly lifts one side of the plate body, and an acute angle space is formed between the uppermost plate body and the adjacent lower plate body; then, the two chains drive a plurality of conveying rollers to enter the acute-angle space from the opening of the acute-angle space in sequence, the conveying rollers push the plate bodies to rotate to the horizontal state, and therefore the single plate bodies are unstacked from the multiple plate bodies in the stacked state; and then the plate bodies on the upper sides of the conveying rollers are conveyed into the packaging mechanism through the conveying rollers to be packaged, and therefore unstacking and packaging integrated operation of the multiple stacked plate bodies is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate packaging technical field, concretely relates to a stacking type plate conveying and packaging device. BACKGROUND

[0002] In the process of producing plates, factories usually stack multiple plates to reduce the floor space occupied by the multiple plates, facilitate the use of transfer equipment to transfer the multiple plates, and improve the transfer efficiency of the multiple plates. However, before the stacked plates are transferred to the vicinity of the packaging equipment for film packaging, the stacked plates need to be disassembled, and then the plates are fed one by one into the packaging equipment for film packaging. If the surface of the plate is rough and not smooth, the automatic disassembling machine with a vacuum suction cup in the prior art cannot adsorb and disassemble the single plate, and workers need to manually disassemble the plate. Manual disassembly by workers consumes a lot of time, reduces the packaging efficiency of the plate, and when the size of the plate is large, it is difficult for workers to control the force when disassembling the plate, which causes the plate to be easily damaged. SUMMARY

[0003] The utility model aims at providing a stacking type plate conveying and packaging device to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model aims at providing a stacking type plate conveying and packaging device, which comprises a disassembling and conveying mechanism. One side of the disassembling and conveying mechanism is provided with a packaging mechanism. The disassembling and conveying mechanism comprises a rack. The inside of the rack is provided with a conveying assembly. The conveying assembly comprises two chain transmission assemblies arranged on opposite sides of the rack. The chain transmission assembly comprises four sprockets rotatably arranged on the side wall of the rack near the four corners. Four sprockets are drivingly connected with the same chain. One of the sprockets is coaxially fixed with a first servo motor for driving the sprocket to rotate. The first servo motor is installed on the side wall of the rack. A plurality of conveying rollers are horizontally and equidistantly rotatably arranged between the two chains. The inside of the rack is provided with a lifting platform. The lifting platform comprises a horizontally arranged placement plate. A plurality of plate bodies are stacked on the upper side wall of the placement plate. Adjacent two plate bodies are distributed in a staggered manner. A gap is formed between the lower side wall of the plate body near one side and the side wall of the adjacent lower plate body. The upper side wall of the rack is fixedly provided with a top rack. Two lifting assemblies for lifting one side of the uppermost plate body are slidingly arranged on the upper side wall of the top rack. The two lifting assemblies are oppositely arranged on both sides of the placement plate.

[0005] As a further improvement of the technical solution, the chain transmission assembly further comprises two horizontally arranged guide rails fixed on the inner side walls of the frame, and the two guide rails are arranged at the horizontal arrangement positions of the chains and are slidably arranged inside the guide rails.

[0006] As a further improvement of the technical solution, the lifting assembly comprises a moving frame slidably arranged on the upper side wall of the top frame, one side of the moving frame is fixed with two electric telescopic rods for driving the lateral movement of the moving frame, the electric telescopic rods are fixedly installed on the upper side wall of the top frame, and two air cylinders are fixedly installed on the moving frame at positions close to the bottom on one side of the moving frame through supports, the lower end of the piston rod of the air cylinder is fixedly connected with a vertical plate, the lower end of the vertical plate close to the side of the placing plate is fixedly connected with a lifting plate, and the lifting plate is perpendicular to the vertical plate.

[0007] As a further improvement of the technical solution, the lifting assembly further comprises a brake assembly arranged between the two vertical plates, the brake assembly comprises a rotating shaft rotatably arranged between the two vertical plates, a baffle is fixedly connected to the middle position of the rotating shaft, a driven gear is coaxially fixedly connected to the rotating shaft, a second servo motor is fixedly installed on one of the vertical plates, a driving gear is coaxially fixed to the output shaft of the second servo motor, and the driving gear and the driven gear are in meshing engagement.

[0008] As a further improvement of the technical solution, the lifting platform further comprises a mounting platform fixedly arranged in the frame, the two ends of the mounting platform are fixed to the opposite sides in the frame, the connection between the mounting platform and the frame is located in the area surrounded by the chain, servo cylinders are fixedly installed on the upper side wall of the mounting platform close to the four corners, the placing plate is fixed to the upper ends of the piston rods of the four servo cylinders, and lifting blocks are fixedly arranged on the upper side wall of the mounting platform.

[0009] Compared with the prior art, the utility model has the advantages of:

[0010] The stacking type plate conveying and packaging device is characterized in that after the baffle in one of the lifting assemblies is in contact with the side of the plate body that does not need to be lifted, the lifting plate in the other lifting assembly lifts the side of the plate body, an acute angle space is formed between the uppermost plate body and the adjacent lower plate body, and then the two chains drive a plurality of conveying rollers to enter the inside of the acute angle space from the opening of the acute angle space, so that the conveying rollers push the plate body to rotate to a horizontal state, and the plate body in the horizontal state is transferred to the upper side of the plurality of conveying rollers, thereby separating the single plate body from the plurality of stacked plate bodies, conveying the plate body on the upper side of the plurality of conveying rollers to the packaging mechanism for packaging, and realizing the integrated operation of separating and packaging the plurality of stacked plate bodies, thereby improving the packaging efficiency of the factory for the plate bodies with rough surfaces. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the whole structure schematic view of the utility model;

[0012] Figure 2 It is the structure schematic view of the unstacking conveying mechanism of the utility model;

[0013] Figure 3 It is the sectional view of the whole structure of the unstacking conveying mechanism of the utility model;

[0014] Figure 4 It is the structure schematic view of the conveying roller and chain of the utility model;

[0015] Figure 5 It is the partial structure schematic view of the unstacking conveying mechanism of the utility model;

[0016] Figure 6 It is the structure schematic view of the lifting platform and plate body combination of the utility model;

[0017] Figure 7 It is the structure schematic view of the lifting assembly of the utility model;

[0018] Figure 8 It is the partial structure schematic view of the lifting assembly of the utility model;

[0019] Figure 9 It is the structure schematic view of the lifting assembly lifting plate body one side of the utility model.

[0020] The meaning of each reference sign in the figure is:

[0021] 1, unstacking conveying mechanism;

[0022] 11, rack;

[0023] 12, conveying assembly; 121, chain wheel; 122, chain; 123, first servo motor; 124, guide rail; 125, conveying roller;

[0024] 13, top frame;

[0025] 15, lifting assembly; 151, moving frame; 152, air cylinder; 153, vertical plate; 154, lifting plate;

[0026] 155, brake assembly; 1551, rotating shaft; 1552, baffle; 1553, driven gear; 1554, driving gear; 1555, second servo motor;

[0027] 156, electric telescopic rod;

[0028] 16, mounting platform; 17, servo cylinder; 18, placing plate;

[0029] 2. Packaging mechanism;

[0030] 3. Board body; 31. Gap. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Example 1

[0033] Please refer to Figures 1-9The embodiment shown, one of the purposes is to provide a stacked plate conveying packaging device, including a unstacking conveying mechanism 1, the unstacking conveying mechanism 1 includes a rack 11, the inside of the rack 11 is provided with a conveying assembly 12, the conveying assembly 12 is used for conveying the plate body 3, the structure of the conveying assembly 12 is refined below, the conveying assembly 12 includes two chain transmission assemblies respectively arranged on the opposite sides of the rack 11, the chain transmission assembly includes four sprockets 121 rotatably arranged on the side wall of the rack 11 near the four corners, the same chain 122 is drivingly connected to the four sprockets 121, the chain 122 encloses a rectangular structure, one of the sprockets 121 is coaxially fixed with a first servo motor 123 for driving the sprocket 121 to rotate, the two first servo motors 123 are electrically connected with an external control device, when the control device controls the first servo motor 123 to rotate, the two first servo motors 123 rotate synchronously, the rotation direction of the output shaft of the first servo motor 123 is adjustable, the first servo motor 123 is installed on the side wall of the rack 11, when the output shaft of the first servo motor 123 drives one of the sprockets 121 to rotate, the sprocket 121 drives the chain 122 to rotate, the rotating chain 122 drives the remaining three sprockets 121 to rotate synchronously, so that the chain 122 rotates along the rectangular path outside the four sprockets 121, a plurality of conveying rollers 125 are transversely arranged between the two chains 122 at equal intervals, the plurality of conveying rollers 125 are perpendicular to the plane formed by the chain 122, when the two chains 122 rotate synchronously, the two chains 122 drive the plurality of conveying rollers 125 to rotate along the rectangular path, the chain transmission assembly further includes two guide rails 124 horizontally arranged and fixed on the inner side wall of the rack 11, the side section of the guide rail 124 is C-shaped, the two guide rails 124 are arranged at the horizontal position of the chain 122, and the horizontal position of the chain 122 is slidingly arranged in the inside of the guide rail 124, when the conveying roller 125 rotates to the position between the two guide rails 124 at the same height, the conveying roller 125 exerts downward pressure on the two chains 122 at its two ends under the action of its own gravity, and the guide rail 124 limits the downward displacement of the chain 122 subjected to pressure, and the two chains 122 in turn limit the downward displacement of the conveying roller 125, so as to improve the stability of the plurality of conveying rollers 125 during rotation along the rectangular path, when the plurality of conveying rollers 125 move between the two guide rails 124 above, the upper side of the plurality of conveying rollers 125 can carry and convey the single plate body 3 unstacked.

[0034] To enable the conveyor roller 125 to destacking several stacked sheet metal bodies 3, a lifting platform is provided inside the frame 11. The lifting platform includes a horizontally arranged placement plate 18. Several sheet metal bodies 3 are stacked on the upper side wall of the placement plate 18, with adjacent sheet metal bodies 3 staggered. A gap 31 is formed between the lower side wall of a sheet metal body 3 and the side wall of the adjacent lower sheet metal body 3. Meanwhile, a top frame 13 is fixedly installed on the upper side wall of the frame 11. Two lifting components 15 are slidably arranged on the upper side wall of the top frame 13 to lift one side of the uppermost sheet metal body 3. The two lifting components 15 are arranged opposite each other on both sides of the placement plate 18. The structure of the lifting components 15 is detailed below, referring to... Figure 7 The lifting assembly 15 includes a movable frame 151 slidably mounted on the upper side wall of the top frame 13. Two electric telescopic rods 156 are fixed to one side of the movable frame 151 for lateral movement. The electric telescopic rods 156 are fixedly mounted on the upper side wall of the top frame 13. Two cylinders 152 are fixedly mounted on one side of the movable frame 151 near the bottom via brackets. Both the electric telescopic rods 156 and the cylinders 152 are electrically connected to an external control device. A vertical rod is fixedly connected to the lower end of the piston rod of the cylinder 152. Plate 153 has two vertically symmetrical grooves near its edge. A slider is slidably installed inside the groove. The slider is installed on the lower side wall of the movable frame 151. The slider and the groove cooperate to restrict the vertical plate 153 to move only vertically, thereby improving the stability of the vertical plate 153 during vertical movement. A lifting plate 154 is fixedly connected to the lower end of the vertical plate 153 near the side of the placement plate 18. The lifting plate 154 is perpendicular to the vertical plate 153, and the thickness of the lifting plate 154 is less than the width of the gap 31.

[0035] The steps for the conveyor roller 125 to destacking several stacked plate bodies 3 are as follows:

[0036] Reference Figure 9The lifting assembly 15 close to the gap 31 at the lower side of the uppermost plate body 3 is denoted as A lifting assembly 15, and the other lifting assembly 15 is denoted as B lifting assembly 15. The external control device controls the A lifting assembly 15 as follows: first, controls the piston rod of the cylinder 152 to extend to drive the vertical downward movement of the vertical plate 153 and the lifting plate 154; when the lifting plate 154 and the gap 31 at the lower side of the uppermost plate body 3 are at the same height, controls the piston rod of the electric telescopic rod 156 to drive the moving frame 151 to move towards the center of the placing plate 18; the moving frame 151 drives the synchronous movement of the cylinder 152, the vertical plate 153 and the lifting plate 154 until the end of the lifting plate 154 close to the center of the placing plate 18 is inserted into the inside of the gap 31; then controls the piston rod of the cylinder 152 to retract to drive the vertical upward movement of the vertical plate 153 and the lifting plate 154; after the moving lifting plate 154 contacts the lower side wall of the uppermost plate body 3, the lifting plate 154 lifts one side of the plate body 3 upward; at this time, an acute angle space is formed between the lower side wall of the uppermost plate body 3 and the upper side wall of the adjacent lower plate body 3.

[0037] In order to smoothly lift one side of the plate body 3 by the lifting plate 154 and ensure the stability of the plate body 3 in the state of being lifted on one side, the lifting assembly 15 further comprises a brake assembly 155 arranged between the two vertical plates 153. The brake assembly 155 comprises a rotating shaft 1551 arranged between the two vertical plates 153, and a baffle 1552 fixedly connected to the middle position of the rotating shaft 1551. The baffle 1552 is an L-shaped plate. The baffle 1552 is arranged between the two vertical plates 153, and the L-shaped plate is arranged to be perpendicular to the two vertical plates 153. Figure 9When the baffle 1552 is in the idle state, the segment of the baffle 1552 connected with the rotating shaft 1551 is perpendicular to the lower side wall of the moving frame 151, and the other segment of the baffle 1552 is on the upper side of the lifting plate 154, so that the baffle 1552 does not hinder the lifting plate 154 from lifting one side of the plate body 3 upward, and the rotating shaft 1551 is coaxially and fixedly connected with a driven gear 1553, one of the vertical plates 153 is fixedly installed with a second servo motor 1555, the second servo motor 1555 is also electrically connected with the external control equipment, the rotating direction of the output shaft of the second servo motor 1555 is adjustable, the output shaft of the second servo motor 1555 is coaxially and fixedly connected with a driving gear 1554, the driving gear 1554 and the driven gear 1553 are engaged, and before the lifting plate 154 in the A lifting assembly 15 lifts one side of the plate body 3 upward, the external control equipment operates the B lifting assembly 15 as follows: first, the output shaft of the second servo motor 1555 drives the driving gear 1554 to rotate, the driving gear 1554 drives the driven gear 1553 and the rotating shaft 1551 to rotate through the engagement transmission between the driving gear 1554 and the driven gear 1553, the rotating shaft 1551 drives the baffle 1552 to rotate synchronously until the segment of the baffle 1552 connected with the rotating shaft 1551 is parallel to the lower side wall of the moving frame 151, and the other segment of the baffle 1552 is perpendicular to the placing plate 18, and then the external control equipment controls the two cylinders 152 to drive the corresponding vertical plates 153 to move vertically downward, the two vertical plates 153 drive the rotating shaft 1551 and the baffle 1552 to move downward synchronously until the side, away from the vertical plate 153, of the baffle 1552 contacts the side, not ready to be lifted, of the plate body 3 located at the uppermost, when the lifting plate 154 in the A lifting assembly 15 lifts one side of the plate body 3 upward, the baffle 1552 blocks the side, not lifted, of the plate body 3 located at the uppermost, so that the plate body 3 located at the uppermost does not slide relative to the plate body 3 located below, the lifting plate 154 can lift one side of the plate body 3 upward smoothly, and the stability of the plate body 3 in the state of being lifted on one side is ensured.

[0038] When the plate body 3 is kept stable in the state of being lifted on one side, the external control device controls the two chains 122 to drive the conveying rollers 125 to rotate from the opening of the acute angle space to the inside of the acute angle space. The first conveying roller 125 in the moving direction of the plurality of conveying rollers 125 will first contact the lower side wall of the plate body 3 located at the uppermost position. Since the height of the conveying roller 125 rotating between the two guide rails 124 does not change, and at this time the lower side wall of the plate body 3 is a slope, the b lifting assembly 15 blocks the transverse movement of the plate body 3 away from the a lifting assembly 15. Therefore, when the rotating conveying roller 125 is in sliding contact with the lower side wall of the plate body 3 located at the uppermost position, the conveying roller 125 moves from the high place to the low place of the slope of the plate body 3, and the plate body 3 located below the conveying roller 125 is gradually lifted upward, so that the angle between the plate body 3 and the lifting plate 154 in the a lifting assembly 15 changes. When the conveying roller 125 passes the middle position of the lower side wall of the plate body 3, the external control device controls the piston rod of the electric telescopic rod 156 to drive the moving frame 151 to move away from the center of the placing plate 18. When the moving frame 151 drives the lifting plate 154 to be out of contact with the plate body 3, the plate body 3 will rotate around the conveying roller 125 under the action of gravity, and the side of the plate body 3 located at the low place will slide relative to the baffle 1552. When the plate body 3 rotates to the horizontal state, the lower side wall of the plate body 3 will be in contact with the plurality of conveying rollers 125 below, so that the plate body 3 is kept in the horizontal state. When the plurality of conveying rollers 125 continue to move close to the lowered baffle 1552, the number of conveying rollers 125 rotating to the lower side of the plate body 3 will continue to increase. When the conveying roller 125 located at the head of the rotating direction of the plurality of conveying rollers 125 is about to contact the lowered baffle 1552, the external control device controls the two cylinders 152 in the b lifting assembly 15 to drive the corresponding vertical plate 153 to move vertically upward. The two vertical plates 153 drive the rotating shaft 1551 and the baffle 1552 to move upward synchronously. When the baffle 1552 moves to the original height, the external control device controls the output shaft of the second servo motor 1555 to rotate reversely, so as to rotate the baffle 1552 to the idle state, thereby avoiding the baffle 1552 from blocking the rotation of the conveying roller 125. At this time, the plate body 3 located at the uppermost position will be stably placed on the upper side of the plurality of conveying rollers 125, and the plate body 3 located at the uppermost position is separated from other plate bodies 3. The conveying roller 125 completes the unstacking of the single plate body 3.

[0039] The packaging mechanism 2 is arranged on one side of the unstacking conveying mechanism 1, and the packaging mechanism 2 comprises a packaging device and a conveying belt for conveying the plate bodies 3. When the plate bodies 3 are placed on the upper sides of the conveying rollers 125, the lower side walls of the plate bodies 3 and the upper side walls of the conveying belt are in the same plane. During the process of unstacking the single plate body 3 by the rotating conveying rollers 125, if the conveying roller 125 in contact with the lower side wall of the plate body 3 moves towards the packaging mechanism 2, after the conveying rollers 125 unstack the single plate body 3 to the upper side of the conveying rollers 125, the conveying roller 125 continues to rotate towards the packaging mechanism 2, so that the conveying rollers 125 convey the plate body 3 to the conveying belt in the packaging mechanism 2, and the conveying belt of the packaging mechanism 2 conveys the plate body 3 to the packaging device inside the packaging mechanism 2 for packaging. If the conveying roller 125 in contact with the lower side wall of the plate body 3 rotates away from the packaging mechanism 2, after the conveying rollers 125 unstack the single plate body 3 to the upper side of the conveying rollers 125, the external control device controls the output shaft of the first servo motor 123 to rotate reversely, so that the two chains 122 drive the conveying rollers 125 to rotate towards the packaging mechanism 2, and the conveying rollers 125 convey the plate body 3 to the conveying belt in the packaging mechanism 2 for subsequent packaging. In this way, the unstacking and packaging integrated operation of the plurality of stacked plate bodies 3 is realized, and the packaging efficiency of the factory for the plate bodies 3 is improved.

[0040] In order to unstack and package the remaining plate bodies 3, the lifting platform further comprises a mounting platform 16 fixedly arranged in the rack 11. The two ends of the mounting platform 16 are fixed to the opposite sides in the rack 11, and the connection between the mounting platform 16 and the rack 11 is located in the area surrounded by the chain 122, so as to avoid that the mounting platform 16 hinders the rotation of the chain 122. Servo cylinders 17 are fixedly installed on the upper side walls of the mounting platform 16 close to the four corners. The piston rods of the servo cylinders 17 are also electrically connected with the external control device. A placing plate 18 is fixed to the upper ends of the piston rods of the four servo cylinders 17. The upper side wall of the mounting platform 16 is fixedly provided with a lifting block. The lower side wall of the plate body 3 located at the lowermost position and the side wall of the lifting block also form a gap 31. After the plate body 3 located at the uppermost position is conveyed to the packaging mechanism 2 by the conveying roller 125, the external control device controls the piston rods of the four servo cylinders 17 to extend synchronously. The piston rods of the servo cylinders 17 drive the placing plate 18 to move upwards, and the placing plate 18 drives the plurality of plate bodies 3 on the upper side of the placing plate 18 to move upwards synchronously, until the height of the plate body 3 located at the uppermost position is the same as the height of the plate body 3 just unstacked. The above steps can be repeated to package the plurality of stacked plate bodies 3 in turn.

[0041] When the device is used, first, the baffle 1552 in the lifting assembly 15 is in contact with the side of the plate body 3 that does not need to be lifted, then the lifting plate 154 in the a lifting assembly 15 lifts one side of the plate body 3, so that the plate body 3 at the uppermost position and the plate body 3 below form an acute angle space, then the chain 122 drives the conveying rollers 125 to enter the acute angle space from the opening of the acute angle space, so that the conveying rollers 125 drive the plate body 3 to rotate to a horizontal state, and the plate body 3 in the horizontal state is transferred to the upper side of the conveying rollers 125, so as to separate the single plate body 3 from the stacked plate bodies 3, then the conveying rollers 125 convey the plate body 3 on the upper side to the packaging mechanism 2, and the packaging mechanism 2 packages the plate body 3, the actions of the first servo motor 123, the cylinder 152, the second servo motor 1555, the electric telescopic rod 156 and the servo cylinder 17 in the unpacking and conveying mechanism 1 are controlled by an external control device, when the plate body 3 reaches the corresponding position, the external control device automatically controls the first servo motor 123, the cylinder 152, the second servo motor 1555, the electric telescopic rod 156 and the servo cylinder 17 to make corresponding actions, so that the unpacking and conveying mechanism 1 can unpack and convey the plate bodies 3.

[0042] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A stacked plate conveying and packaging device comprising a de-stacking conveying mechanism (1), one side of which is provided with a packaging mechanism (2), characterized in that: The unstacking conveying mechanism (1) comprises a rack (11), the inside of the rack (11) is provided with a conveying assembly (12), the conveying assembly (12) comprises two chain transmission assemblies arranged on the opposite sides of the rack (11) respectively, the chain transmission assembly comprises four sprockets (121) rotatably arranged on the side wall of the rack (11) near the four corners, the same chain (122) is drivingly connected to the four sprockets (121), a first servo motor (123) for driving the sprocket (121) to rotate is fixed on the same shaft of one of the sprockets (121), the first servo motor (123) is installed on the side wall of the rack (11), a plurality of conveying rollers (125) are transversely rotatably arranged between the two chains (122) at equal intervals, the inside of the rack (11) is provided with a lifting platform, the lifting platform comprises a placement plate (18) arranged horizontally, a plurality of plate bodies (3) are stacked and placed on the upper side wall of the placement plate (18), and adjacent two plate bodies (3) are distributed in a staggered manner, a gap (31) is formed between the lower side wall of the plate body (3) near one side and the side wall of the plate body (3) below, a top rack (13) is fixedly arranged on the upper side wall of the rack (11), two lifting assemblies (15) for lifting one side of the uppermost plate body (3) are slidingly arranged on the upper side wall of the top rack (13), and the two lifting assemblies (15) are oppositely arranged on the two sides of the placement plate (18).

2. The stacked sheet conveying packaging apparatus according to claim 1, characterized by: The chain transmission assembly further comprises two guide rails (124) fixedly arranged on the inner side wall of the rack (11) horizontally, the two guide rails (124) are arranged at the positions where the chains (122) are arranged horizontally, and the positions where the chains (122) are arranged horizontally are slidingly arranged in the interiors of the guide rails (124).

3. The stacked sheet conveying packaging apparatus according to claim 1, characterized by: The lifting assembly (15) comprises a moving frame (151) slidingly arranged on the upper side wall of the top rack (13), two electric telescopic rods (156) for driving the moving frame (151) to move laterally are fixed on one side of the moving frame (151), the electric telescopic rods (156) are fixedly installed on the upper side wall of the top rack (13), two air cylinders (152) are fixedly installed on one side of the moving frame (151) near the bottom through supports, a vertical plate (153) is fixedly connected to the lower end of the piston rod of the air cylinder (152), a lifting plate (154) is fixedly connected to the lower end of the vertical plate (153) near one side of the placement plate (18), and the lifting plate (154) is perpendicular to the vertical plate (153).

4. The stacked sheet conveying packaging apparatus according to claim 3, characterized by: The lifting assembly (15) further comprises a brake assembly (155) arranged between the two vertical plates (153), the brake assembly (155) comprises a rotating shaft (1551) rotatably arranged between the two vertical plates (153), a baffle (1552) is fixedly connected to the rotating shaft (1551) at a middle position, and a driven gear (1553) is coaxially fixedly connected to the rotating shaft (1551); one of the vertical plates (153) is fixedly provided with a second servo motor (1555), the output shaft of the second servo motor (1555) is coaxially fixedly provided with a driving gear (1554), and the driving gear (1554) is engaged with the driven gear (1553).

5. The stacked sheet conveying packaging apparatus according to claim 1, characterized by: The lifting platform further comprises a mounting platform (16) fixedly arranged in the rack (11), both ends of the mounting platform (16) are fixedly arranged on the opposite sides in the rack (11), the connection between the mounting platform (16) and the rack (11) is located in the area surrounded by the chain (122), the upper side wall of the mounting platform (16) is fixedly provided with servo cylinders (17) at positions close to four corners, the placing plate (18) is fixedly arranged at the upper end of the piston rod of the four servo cylinders (17), and the upper side wall of the mounting platform (16) is fixedly provided with lifting blocks.

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