A palletizing line

Abstract

The utility model relates to the technical field of material transfer especially is involved in a kind of stacking production line, it includes conveying mechanism, conveying mechanism is equipped with stacking mechanism and grasps mechanism, the stacking mechanism is located the feed end of grasps mechanism, the output end of grasps mechanism is also equipped with loading station. The present application has reduced the time spent in grasping first and then stacking, so that the whole stacking process is simplified, the stacking speed of stacking link is improved, and the overall efficiency of production line is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of material handling, and in particular to a palletizing production line. Background Technology

[0002] Before materials are loaded onto vehicles after production is completed, they are often stacked. In existing technology, palletizing machines include three stations: a conveying station, a picking station, and a stacking station. The stacking process is as follows: the mold table is conveyed to the picking station through the conveying station. The picking machine picks up the first mold table, moves it along the support to the stacking station, puts down the first mold table, and returns to the picking station. The second mold table is picked up, moves it along the support to the stacking station, and is placed on the first mold table, thus realizing the stacking of mold tables.

[0003] The current palletizing cycle time is about 2 minutes, while the cycle time of other stations on the production line can be increased to within 1 minute. Therefore, the speed of the palletizing machine is relatively slow, and the palletizing process is the limiting factor for production. Utility Model Content

[0004] In order to improve the palletizing speed and the overall efficiency of the production line, this application provides a palletizing production line.

[0005] This application provides a palletizing production line, which adopts the following technical solution: A palletizing production line includes a conveying mechanism, on which a palletizing mechanism and a picking mechanism are installed. The palletizing mechanism is located at the feeding end of the picking mechanism, and a loading station is installed at the output end of the picking mechanism.

[0006] By adopting the above technical solution, the mold table is transported to the palletizing mechanism via a conveying mechanism. The palletizing mechanism lifts the first mold table, and then the second mold table is transported to the palletizing mechanism via a conveying mechanism. The palletizing mechanism lowers the first mold table and places it on the second mold table, thus achieving mold table palletizing. The process is repeated to stack the mold tables to the set number of layers. Then, the stacked mold tables are transported to the picking mechanism via a conveying mechanism. The picking mechanism picks up the stacked mold tables and moves them to the loading station, thus completing the entire process. This reduces the time spent on picking up the mold tables before palletizing, simplifies the entire palletizing process, increases the palletizing speed, and thus improves the overall efficiency of the production line.

[0007] Optionally, the palletizing mechanism includes a first mounting frame, which is fixedly connected to the ground. Two first pallets are mounted on the first mounting frame via a first lifting assembly. A telescopic assembly is also mounted on the first lifting assembly, and the telescopic assembly is connected to the first pallets.

[0008] By adopting the above technical solution, when stacking, the first lifting component drives the first pallet to descend to both sides of the mold table, and then the telescopic component drives the two first pallets to move below the mold table. At this time, the first lifting component drives the first pallet to rise, which in turn drives the mold table to rise, thereby realizing the stacking of the mold table.

[0009] Optionally, the first lifting assembly includes a second motor, which is fixedly connected to the end face of the first mounting frame away from the ground. A drive bevel gear is keyed to the output shaft of the second motor. A rotating shaft is also rotatably connected to the end face of the first mounting frame away from the ground. A driven bevel gear is fixedly connected to the rotating shaft and meshes with the drive bevel gear. First transmission bevel gears are fixedly connected to both ends of the rotating shaft. First lead screws are rotatably connected to both ends of the first mounting frame. A second transmission bevel gear is fixedly connected to the end of the first lead screw near the rotating shaft and meshes with the first transmission bevel gear. First mounting plates are slidably connected to both ends of the first mounting frame. A first lead screw nut is provided inside the first mounting plate and engages with the first lead screw. The telescopic assembly is connected to the first mounting plate.

[0010] By adopting the above technical solution, when the mold table is raised or lowered, the second motor starts, drives the drive bevel gear to rotate, the drive bevel gear drives the driven bevel gear to rotate, the driven bevel gear drives the rotating shaft to rotate, the rotating shaft drives the first transmission bevel gear to rotate, the first transmission bevel gear drives the second transmission bevel gear to rotate, the second transmission bevel gear drives the first lead screw to rotate, the first lead screw drives the first mounting plate to slide, the first mounting plate drives the first support plate to slide through the telescopic component, and the first support plate drives the mold table to rise or fall; thus, while realizing the raising and lowering of the mold table, the lead screw control makes the raising and lowering of the mold table more precise.

[0011] Optionally, the telescopic assembly includes two first cylinders, which are respectively fixedly connected to two first mounting plates. A fixing block is also fixedly connected to the first mounting plate. A connecting shaft is slidably connected to the fixing block. The connecting shaft is fixedly connected to the piston shaft of the first cylinder. The end of the connecting shaft away from the first cylinder is fixedly connected to the first support plate.

[0012] By adopting the above technical solution, when the mold table is transported to the position of the first pallet, the first cylinder is activated, the first cylinder drives the connecting shaft to slide, and the connecting shaft drives the second pallet to be inserted between the mold table and the conveying mechanism; at the same time, the setting of the fixing block and the connecting shaft reduces the pressure on the piston bearing of the first cylinder, thereby reducing the probability of damage to the first cylinder.

[0013] Optionally, the conveying mechanism includes a support frame installed on the ground, a plurality of idlers rotatably connected to the support frame, and a drive assembly installed on the support frame, the drive assembly being connected to the idlers and used to drive the idlers to rotate.

[0014] By adopting the above technical solution, the arrangement of the idler rollers and drive components enables the transfer and conveying of the mold table.

[0015] Optionally, the grabbing mechanism includes a second mounting frame, which is fixedly connected to the ground. Two second trays are slidably connected to the second mounting frame via a power component. A second lifting component is also installed on the power component, and the second lifting component is connected to the second trays.

[0016] By adopting the above technical solution, when the stacked mold table is picked up and transferred, the second lifting component first inserts the second support between the roller and the mold table, and then lifts the stacked mold table away from the roller. Then the power component drives the stacked mold table to the loading station. The picking mechanism enables the stacked mold table to be transported away from the loading station in a timely manner, thereby further improving the stacking and loading efficiency and increasing production efficiency.

[0017] Optionally, the power assembly includes a fourth motor, which is fixedly connected to the end face of the second mounting bracket away from the ground. A fourth lead screw is fixedly connected to the output shaft of the fourth motor. A slide rail is also fixedly connected to the end face of the second mounting bracket away from the ground. A slider is slidably connected to the slide rail. A sliding plate is fixedly connected to the slider. A fourth lead screw nut is provided inside the sliding plate. The fourth lead screw nut cooperates with the fourth lead screw. The sliding plate is connected to the second lifting assembly.

[0018] By adopting the above technical solution, when the stacked molds are loaded onto the vehicle, the fourth motor starts, the fourth motor drives the fourth lead screw to rotate, the fourth lead screw drives the sliding plate to slide, and the sliding plate drives the stacked molds to the loading position via the second support plate for loading; and the setting of the slide rail and slider makes the sliding of the sliding plate more stable.

[0019] Optionally, the second lifting assembly includes a second cylinder, which is fixedly connected to the sliding plate. A second mounting plate is fixedly connected to the piston shaft of the second cylinder. A third motor is fixedly connected to the second mounting plate. A second lead screw is fixedly connected to the output shaft of the third motor. A third lead screw is fixedly connected to the end of the second lead screw away from the third motor. The thread direction of the third lead screw is opposite to that of the thread direction of the second lead screw. A first connecting rod and a second connecting rod are also slidably connected to the second mounting plate. A second lead screw nut and a third lead screw nut are respectively provided in the first connecting rod and the second connecting rod. The second lead screw nut and the third lead screw nut cooperate with the second lead screw and the third lead screw, respectively. The ends of the first connecting rod and the second connecting rod that are close to each other are fixedly connected to two second support plates, respectively.

[0020] By adopting the above technical solution, when the stacked mold table is picked up, the third motor starts, which drives the second lead screw to rotate. The second lead screw drives the third lead screw to rotate. The second and third lead screws respectively drive the first and second connecting rods to move closer together. The first and second connecting rods respectively drive the two second pallets to be inserted between the mold table and the roller. Then the second cylinder starts, thereby lifting the stacked mold table through the second pallets. At the same time, when the first and second connecting rods move closer together, they also clamp the stacked mold table, thereby reducing the probability of the stacked mold table falling.

[0021] In summary, this application includes the following beneficial technical effects: 1. The mold table is conveyed to the palletizing mechanism via a conveyor. The palletizing mechanism lifts the first mold table, and then the second mold table is conveyed to the palletizing mechanism via a conveyor. The palletizing mechanism lowers the first mold table and places it on the second mold table, thus palletizing the mold tables. This process is repeated until the mold tables are stacked to the set number of layers. Then, the stacked mold tables are conveyed to the picking mechanism via a conveyor. The picking mechanism picks up the stacked mold tables and moves them to the loading station, completing the entire process. This reduces the time spent on picking up the mold tables before palletizing, simplifies the entire palletizing process, increases the palletizing speed, and thus improves the overall efficiency of the production line. 2. When the mold table is raised or lowered, the second motor starts, which drives the drive bevel gear to rotate. The drive bevel gear drives the driven bevel gear to rotate, which in turn drives the rotating shaft to rotate. The rotating shaft drives the first transmission bevel gear to rotate, which in turn drives the second transmission bevel gear to rotate. The second transmission bevel gear drives the first lead screw to rotate, which in turn drives the first mounting plate to slide. The first mounting plate, through a telescopic assembly, drives the first support plate to slide, which in turn drives the mold table to rise or fall. Thus, while raising or lowering the mold table, the lead screw control makes the raising and lowering of the mold table more precise. 3. When the mold table is transported to the position of the first pallet, the first cylinder is activated. The first cylinder drives the connecting shaft to slide, and the connecting shaft drives the second pallet to be inserted between the mold table and the conveying mechanism. At the same time, the setting of the fixing block and the connecting shaft reduces the pressure on the piston bearing of the first cylinder, thereby reducing the probability of damage to the first cylinder. 4. When the stacked mold table is picked up and transferred, the second lifting component first inserts the second support between the roller and the mold table, and then lifts the stacked mold table away from the roller. Then the power component drives the stacked mold table to the loading station. The picking mechanism enables the stacked mold table to be transported away from the loading station in a timely manner, thereby further improving the stacking and loading efficiency and production efficiency. Attached Figure Description

[0022] Figure 1 This is a top view of the palletizing production line in an embodiment of this application; Figure 2 This is a side view of the palletizing production line in an embodiment of this application; Figure 3 This is a schematic diagram of the palletizing mechanism in an embodiment of this application; Figure 4 This is a schematic diagram of the gripping mechanism in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the second lifting component in the embodiments of this application.

[0023] Reference numerals: 1. Conveying mechanism; 11. Support; 12. Idler roller; 13. Drive assembly; 2. Palletizing mechanism; 21. First mounting frame; 211. First chute; 22. First pallet; 23. Telescopic assembly; 231. First cylinder; 232. Fixing block; 233. Connecting shaft; 234. Second chute; 24. First lifting assembly; 241. Second motor; 242. Rotating shaft; 243. Drive bevel gear; 244. Driven bevel gear; 245. First lead screw; 246. First mounting plate; 247. First transmission bevel gear; 248. Second transmission bevel gear; 3. Holding mechanism; 31. Second mounting bracket; 32. Second pallet; 33. Power assembly; 331. Fourth motor; 332. Fourth lead screw; 333. Sliding plate; 334. Slider; 335. Slide rail; 336. Fourth slide groove; 34. Second lifting assembly; 341. Second cylinder; 342. Second mounting plate; 343. Third motor; 344. Second lead screw; 345. Third lead screw; 346. First connecting rod; 347. Second connecting rod; 348. Third slide groove; 4. Loading station. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0025] This application discloses a palletizing production line.

[0026] refer to Figure 1 The palletizing production line includes a conveying mechanism 1 for conveying the palletizing mold, a palletizing mechanism 2 for palletizing and a picking mechanism 3 for loading and transferring the palletized mold onto a vehicle, and a loading station 4 installed at the output end of the picking mechanism 3.

[0027] The mold platform is conveyed to the palletizing mechanism 2 via the conveyor mechanism 1. The palletizing mechanism 2 lifts the first mold platform, and then the second mold platform is conveyed to the palletizing mechanism 2 via the conveyor mechanism 1. The palletizing mechanism 2 lowers the first mold platform and places it on the second mold platform, thus achieving mold platform palletizing. The process is repeated to stack the mold platforms to the set number of layers. Then, the stacked mold platforms are conveyed to the picking mechanism 3 via the conveyor mechanism 1. The picking mechanism 3 picks up the stacked mold platforms and moves them to the loading station 4, completing the entire process. This reduces the time spent on picking up the mold platforms before stacking them, simplifies the entire palletizing process, increases the palletizing speed, and thus improves the overall efficiency of the production line.

[0028] refer to Figure 2 The conveying mechanism 1 includes a support 11, which is fixedly connected to the ground. Multiple idlers 12 are rotatably connected to the support 11. A drive assembly 13 is also installed on the support 11, and the drive assembly 13 is connected to the idlers 12 in a transmission manner. The arrangement of the idlers 12 and the drive assembly 13 realizes the transfer and conveying of the mold table.

[0029] refer to Figure 3 The palletizing mechanism 2 includes a first mounting frame 21, which is fixedly connected to the ground. Two first pallets 22 are slidably connected to the first mounting frame 21 via a first lifting assembly 24. A telescopic assembly 23 is also installed on the first lifting assembly 24, and the telescopic assembly 23 is connected to the first pallets 22.

[0030] The first lifting assembly 24 includes a second motor 241, which is fixedly connected to the end face of the first mounting frame 21 away from the idler roller 12. A drive bevel gear 243 is keyed to the output shaft of the second motor 241. A rotating shaft 242 is also rotatably connected to the end face of the first mounting frame 21 away from the idler roller 12. A driven bevel gear 244 is fixedly connected to the rotating shaft 242 and meshes with the drive bevel gear 243. First transmission bevel gears 247 are fixedly connected to both ends of the rotating shaft 242. Both ends of the first mounting frame 21 are also rotatably connected to the first transmission bevel gears 247. A first lead screw 245 is dynamically connected. A second transmission bevel gear 248 is fixedly connected to one end of the first lead screw 245 near the rotating shaft 242. The two second transmission bevel gears 248 mesh with the two first transmission bevel gears 247 respectively. A first sliding groove 211 is provided on the side wall at both ends of the first mounting bracket 21. A first mounting plate 246 is slidably connected in the two first sliding grooves 211. A first lead screw nut is provided inside the first mounting plate 246. The first lead screw nut cooperates with the first lead screw 245. The telescopic component 23 is installed on the first mounting plate 246.

[0031] When the mold table is raised or lowered, the second motor 241 starts, which drives the drive bevel gear 243 to rotate. The drive bevel gear 243 drives the driven bevel gear 244 to rotate, which drives the rotating shaft 242 to rotate. The rotating shaft 242 drives the first transmission bevel gear 247 to rotate, which drives the second transmission bevel gear 248 to rotate. The second transmission bevel gear 248 drives the first lead screw 245 to rotate, which drives the first mounting plate 246 to slide. The first mounting plate 246 drives the first support plate 22 to slide through the telescopic component 23, which drives the mold table to rise or fall. Thus, while raising or lowering the mold table, the lead screw control makes the raising and lowering of the mold table more precise.

[0032] The telescopic assembly 23 includes two first cylinders 231, which are respectively fixedly connected to two first mounting plates 246. A fixing block 232 is also fixedly connected to the end face of the two first mounting plates 246 away from the roller 12. A through second slide groove 234 is opened on the end face of the fixing block 232 away from the first cylinder 231. A connecting shaft 233 is slidably connected in the second slide groove 234. The connecting shaft 233 is fixedly connected to the piston shaft of the first cylinder 231. The end of the connecting shaft 233 away from the first cylinder 231 is fixedly connected to the first support plate 22.

[0033] When the mold table is transported to the position of the first pallet 22, the first cylinder 231 is activated. The first cylinder 231 drives the connecting shaft 233 to slide, and the connecting shaft 233 drives the second pallet 32 ​​to be inserted between the mold table and the roller 12. At the same time, the setting of the fixing block 232 and the connecting shaft 233 reduces the pressure on the piston bearing of the first cylinder 231, thereby reducing the probability of damage to the first cylinder 231.

[0034] refer to Figure 4 The grabbing mechanism 3 includes a second mounting frame 31, which is fixedly connected to the ground. Two second pallets 32 are slidably connected to the second mounting frame 31 via a power assembly 33. A second lifting assembly 34 is also installed on the power assembly 33 and is connected to the second pallets 32.

[0035] The power assembly 33 includes a fourth motor 331, which is fixedly connected to the end face of the second mounting frame 31 away from the roller 12. A fourth lead screw 332 is fixedly connected to the output shaft of the fourth motor 331. Two slide rails 335 are also fixedly connected to the end face of the second mounting frame 31 away from the roller 12. A slider 334 is slidably connected to each of the two slide rails 335. A sliding plate 333 is fixedly connected to the end face of the two sliders 334 that are close to each other. A fourth lead screw nut is provided in the sliding plate 333. The fourth lead screw nut cooperates with the fourth lead screw 332. The sliding plate 333 is connected to the second lifting assembly 34.

[0036] When the stacked mold table is picked up and transferred, the second lifting component 34 first inserts the second pallet 32 ​​between the roller 12 and the mold table, and then lifts the stacked mold table away from the roller 12. Then the fourth motor 331 starts, drives the fourth lead screw 332 to rotate, and the fourth lead screw 332 drives the sliding plate 333 to slide. The sliding plate 333 drives the stacked mold table to the loading station 4 through the second pallet 32 ​​for loading, thereby further improving the stacking and loading efficiency and improving production efficiency.

[0037] refer to Figure 5The second lifting assembly 34 includes a second cylinder 341, which is fixedly connected to the end face of the sliding plate 333 away from the roller 12. A second mounting plate 342 is fixedly connected to the piston shaft of the second cylinder 341. A third motor 343 is fixedly connected to the end face of the second mounting plate 342 away from the sliding plate 333. A second lead screw 344 is fixedly connected to the output shaft of the third motor 343. A third lead screw 345 is fixedly connected to the end of the second lead screw 344 away from the third motor 343. The thread direction of the third lead screw 345 is opposite to that of the second lead screw 344. The second mounting plate 342 is located away from the sliding plate 333. A through third sliding groove 348 is provided on the end face of the sliding plate 333. A fourth sliding groove 336 is provided on the end face of the sliding plate 333 near the second mounting plate 342. A first connecting rod 346 and a second connecting rod 347 are slidably connected in the third sliding groove 348 and the fourth sliding groove 336. A second lead screw nut and a third lead screw nut are respectively provided in the first connecting rod 346 and the second connecting rod 347. The second lead screw nut and the third lead screw nut cooperate with the second lead screw 344 and the third lead screw 345 respectively. The end faces of the first connecting rod 346 and the second connecting rod 347 that are close to each other are fixedly connected to two second support plates 32 respectively.

[0038] When the stacked mold table is picked up, the third motor 343 starts, driving the second lead screw 344 to rotate. The second lead screw 344 drives the third lead screw 345 to rotate. The second lead screw 344 and the third lead screw 345 respectively drive the first connecting rod 346 and the second connecting rod 347 to move closer together. The first connecting rod 346 and the second connecting rod 347 respectively drive the two second support plates 32 to be inserted between the mold table and the support roller 12. Then the second cylinder 341 starts, thereby lifting the stacked mold table through the second support plates 32. At the same time, when the first connecting rod 346 and the second connecting rod 347 move closer together, they also clamp the stacked mold table, thereby reducing the probability of the stacked mold table falling.

[0039] The implementation principle of a palletizing production line according to an embodiment of this application is as follows: When the mold table is transported to the position of the first pallet 22, the first cylinder 231 is started, and the first cylinder 231 drives the connecting shaft 233 to slide. The connecting shaft 233 drives the second pallet 32 ​​to be inserted between the mold table and the roller 12. Then the second motor 241 is started, and the second motor 241 drives the driving bevel gear 243 to rotate. The driving bevel gear 243 drives the driven bevel gear 244 to rotate. The driven bevel gear 244 drives the rotating shaft 242 to rotate. The rotating shaft 242 drives the first transmission bevel gear 247 to rotate. The first transmission bevel gear 247 drives the second transmission bevel gear 248 to rotate. The second transmission bevel gear 248 drives the first lead screw 245 to rotate. The first lead screw 245 drives the first mounting plate 246 to slide. The first mounting plate 246 drives the first pallet 22 to slide through the telescopic component 23. 22 drives the mold table to rise and fall; when the stacked mold table is transported to the position of the second pallet 32, the third motor 343 starts, the third motor 343 drives the second lead screw 344 to rotate, the second lead screw 344 drives the third lead screw 345 to rotate, the second lead screw 344 and the third lead screw 345 respectively drive the first connecting rod 346 and the second connecting rod 347 to move closer to each other, the first connecting rod 346 and the second connecting rod 347 respectively drive the two second pallets 32 to be inserted between the mold table and the roller 12, then the second cylinder 341 starts, and then lifts the stacked mold table through the second pallet 32; then the fourth motor 331 starts, the fourth motor 331 drives the fourth lead screw 332 to rotate, the fourth lead screw 332 drives the sliding plate 333 to slide, the sliding plate 333 drives the stacked mold table to the position of loading station 4 through the second pallet 32 ​​for loading.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A palletizing production line, characterized in that, It includes a conveying mechanism (1), on which a palletizing mechanism (2) and a picking mechanism (3) are installed. The palletizing mechanism (2) is located at the feeding end of the picking mechanism (3), and the output end of the picking mechanism (3) is also equipped with a loading station (4).

2. The palletizing production line according to claim 1, characterized in that, The palletizing mechanism (2) includes a first mounting frame (21), which is fixedly connected to the ground. Two first pallets (22) are mounted on the first mounting frame (21) via a first lifting assembly (24). A telescopic assembly (23) is also mounted on the first lifting assembly (24), and the telescopic assembly (23) is connected to the first pallets (22).

3. The palletizing production line according to claim 2, characterized in that, The first lifting assembly (24) includes a second motor (241), which is fixedly connected to the end face of the first mounting bracket (21) away from the ground. A drive bevel gear (243) is keyed to the output shaft of the second motor (241). A rotating shaft (242) is also rotatably connected to the end face of the first mounting bracket (21) away from the ground. A driven bevel gear (244) is fixedly connected to the rotating shaft (242), and the driven bevel gear (244) meshes with the drive bevel gear (243). First transmission bevel gears (247) are fixedly connected to both ends of the rotating shaft (242). The first mounting bracket (21) is rotatably connected to both ends of a first lead screw (245). A second transmission bevel gear (248) is fixedly connected to one end of the first lead screw (245) near the rotating shaft (242). The second transmission bevel gear (248) meshes with the first transmission bevel gear (247). The first mounting bracket (21) is slidably connected to both ends of a first mounting plate (246). A first lead screw nut is provided inside the first mounting plate (246). The first lead screw nut cooperates with the first lead screw (245). The telescopic component (23) is connected to the first mounting plate (246).

4. The palletizing production line according to claim 3, characterized in that, The telescopic assembly (23) includes two first cylinders (231), which are respectively fixedly connected to two first mounting plates (246). A fixing block (232) is also fixedly connected to the first mounting plate (246). A connecting shaft (233) is slidably connected to the fixing block (232). The connecting shaft (233) is fixedly connected to the piston shaft of the first cylinder (231). The end of the connecting shaft (233) away from the first cylinder (231) is fixedly connected to the first support plate (22).

5. The palletizing production line according to claim 1, characterized in that, The conveying mechanism (1) includes a bracket (11) which is installed on the ground. Multiple rollers (12) are rotatably connected to the bracket (11). A drive assembly (13) is also installed on the bracket (11). The drive assembly (13) is connected to the rollers (12) and is used to drive the rollers (12) to rotate.

6. The palletizing production line according to claim 1, characterized in that, The grabbing mechanism (3) includes a second mounting frame (31), which is fixedly connected to the ground. Two second pallets (32) are slidably connected to the second mounting frame (31) via a power assembly (33). A second lifting assembly (34) is also installed on the power assembly (33), and the second lifting assembly (34) is connected to the second pallets (32).

7. The palletizing production line according to claim 6, characterized in that, The power assembly (33) includes a fourth motor (331), which is fixedly connected to the end face of the second mounting bracket (31) away from the ground. A fourth lead screw (332) is fixedly connected to the output shaft of the fourth motor (331). A slide rail (335) is also fixedly connected to the end face of the second mounting bracket (31) away from the ground. A slider (334) is slidably connected to the slide rail (335). A sliding plate (333) is fixedly connected to the slider (334). A fourth lead screw nut is provided inside the sliding plate (333). The fourth lead screw nut cooperates with the fourth lead screw (332). The sliding plate (333) is connected to the second lifting assembly (34).

8. The palletizing production line according to claim 7, characterized in that, The second lifting assembly (34) includes a second cylinder (341), which is fixedly connected to the sliding plate (333). A second mounting plate (342) is fixedly connected to the piston shaft of the second cylinder (341). A third motor (343) is fixedly connected to the second mounting plate (342). A second lead screw (344) is fixedly connected to the output shaft of the third motor (343). A third lead screw (345) is fixedly connected to the end of the second lead screw (344) away from the third motor (343). The thread of the third lead screw (345) rotates... The first connecting rod (346) and the second connecting rod (347) are slidably connected on the second mounting plate (342) in the opposite direction to the thread of the second lead screw (344). The first connecting rod (346) and the second connecting rod (347) are respectively provided with a second lead screw nut and a third lead screw nut. The second lead screw nut and the third lead screw nut cooperate with the second lead screw (344) and the third lead screw (345) respectively. The ends of the first connecting rod (346) and the second connecting rod (347) that are close to each other are respectively fixedly connected to the two second support plates (32).

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