An automatic lifting paper stack palletizing and aligning device

Abstract

The present invention relates to an automatic lifting paper stack palletizing and aligning device, which is used to input paper stacks, and perform aligning and palletizing and then output paper stacks. The device includes a front conveying table, a main lifting table, and an aligning paper conveying table arranged in sequence. The main lifting table includes a main frame and a main lifting table component arranged on the main frame. The main lifting table component moves in the vertical direction and performs height positioning. The main lifting table component conveys the paper stack on the front conveying table into the aligning paper conveying table for palletizing. The aligning paper conveying table includes a finished paper stack conveying table, an aligning paper main frame, and a paper slapping component arranged on the aligning paper main frame. The main lifting table component and the paper slapping component cooperate with each other to perform front-back alignment and left-right alignment on the paper stack. After palletizing is completed, the finished paper stack conveying table outputs the paper stack through a front door mechanism. Compared with the prior art, the present invention has the advantages of high production efficiency, high and neat output paper stack height, etc.

Description

Technical Field

[0001] The present invention relates to the field of carton manufacturing production, and particularly to an automatic lifting paper stack palletizing and aligning device. Background Art

[0002] In existing carton production factories, after the paper is die-cut and sliced, the products are output in the form of paper stacks. In the subsequent process, the paper stacks are palletized to form neat paper piles, which is convenient for the storage, handling, and other operations of the produced carton boards in the subsequent processes. Among them, the height and neatness of the paper pile after palletizing are two very important requirements. A paper pile with uniform height and neatness will greatly increase the efficiency of the subsequent processes and maximize the space utilization rate.

[0003] Traditional factory palletizing processes are all carried out manually, which have great limitations on the height and neatness of the paper stacks after product palletizing. The height of manual palletizing is limited by the height of the operator himself. The heights of the products palletized by different operators may be different. At the same time, after palletizing to a certain height, the labor intensity of the operator will also increase; when palletizing, the neatness of the whole pile of products is required, and manual operation can only rely on manual alignment, which is very difficult. The operator has to perform the palletizing action and at the same time perform the paper feeding and paper aligning actions, with very low production efficiency and high operation intensity, which is not conducive to mass production. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned defects existing in the prior art and provide an automatic lifting paper stack palletizing and aligning device.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] An automatic lifting paper stack palletizing and aligning device is used for inputting paper stacks, and performing alignment and palletizing and then outputting paper piles. The device includes a front conveying table, a lifting main table, and an aligning conveying table arranged in sequence. The lifting main table includes a main frame and a lifting main table component arranged on the main frame. The lifting main table component moves in the vertical direction and performs height positioning. The lifting main table component transports the paper stack on the front conveying table into the aligning conveying table for alignment and palletizing. The aligning conveying table includes a finished paper pile conveying table, an aligning main frame, and a paper slapping component arranged on the aligning main frame. The lifting main table component and the paper slapping component cooperate with each other to perform front-back alignment and left-right alignment on the paper stack. The finished paper pile conveying table outputs the paper pile after palletizing is completed.

[0007] Furthermore, the lifting main platform assembly includes a secondary frame, a lifting and conveying platform, and a rear paper clapping mechanism, which are respectively arranged on the secondary frame. The secondary frame moves in the vertical direction. The lifting and conveying platform includes a main platform conveying belt, paper supporting inserting rods, a driving mechanism for the paper supporting inserting rods, and a driving mechanism for the main platform conveying belt. The main platform conveying belt and the paper supporting inserting rods are alternately arranged on the surface of the lifting and conveying platform. The driving mechanism for the main platform conveying belt drives the main platform conveying belt to move. The paper supporting inserting rods move horizontally through the driving mechanism for the paper supporting inserting rods and extend out of the lifting main platform. The main platform conveying belt and the paper supporting inserting rods cooperate with each other to convey the paper stack on the paper supporting inserting rods into the paper aligning conveying table. The rear paper clapping mechanism cooperates with the paper clapping assembly to align the front and rear of the paper stack.

[0008] Furthermore, the rear paper clapping mechanism includes a rear paper clapping driving mechanism, a rear paper clapping support, a main platform rear paper clapping board, and a rear paper clapping swing strut, which are respectively arranged on the secondary frame. The upper end of the main platform rear paper clapping board is swingably connected to the top end of the rear paper clapping support, and the middle part is connected to one end of the rear paper clapping swing strut. The other end of the rear paper clapping swing strut is connected to the rear paper clapping support. After the paper stack is conveyed into the paper aligning conveying table, the main platform rear paper clapping board is swung out and fixed through the rear paper clapping swing strut. The rear paper clapping support moves horizontally through the rear paper clapping driving mechanism, and the main platform rear paper clapping board moves horizontally to cooperate with the paper clapping assembly to align the front and rear of the paper stack on the paper supporting inserting rods.

[0009] Furthermore, a horizontal guide rail is arranged in the paper aligning main frame. The paper clapping assembly includes a left and right side paper clapping mechanism and a front door mechanism, which are respectively arranged on the paper aligning main frame. The left and right side paper clapping mechanism includes a side paper clapping moving frame arranged in the horizontal guide rail of the paper aligning main frame, and a left and right side paper clapping board, a side paper clapping driving mechanism, and a side paper clapping position moving driving mechanism, which are respectively arranged on the side paper clapping moving frame. The side paper clapping moving frame moves along the horizontal guide rail through the side paper clapping position moving driving mechanism. A vertical guide rail is arranged in the side paper clapping moving frame. The left and right side paper clapping boards move along the vertical guide rail through the side paper clapping driving mechanism and approach each other to align the left and right sides of the paper stack. The front door mechanism cooperates with the main platform rear paper clapping board to align the front and rear of the paper stack.

[0010] Furthermore, the front door mechanism includes a front board moving frame arranged in the horizontal guide rail of the paper aligning main frame, and a front door board, a front door moving driving mechanism, and an opening driving mechanism, which are respectively arranged on the front board moving frame. The front board moving frame moves along the horizontal guide rail through the front door moving driving mechanism. The front door board is aligned with one side of the paper stack and cooperates with the main platform rear paper clapping board to align the front and rear of the paper stack. After the stacking height of the paper stack reaches the set value, the stacking is completed. The opening driving mechanism drives the front door board to open, and the finished paper stack conveying table outputs the paper stack.

[0011] Further, the device further includes an empty pallet placing table connected to the finished product conveying table and an empty pallet pushing plate arranged on the empty pallet placing table. Empty pallets are placed on the empty pallet placing table. After the empty pallets are pushed out of the empty pallet placing table by the empty pallet pushing plate, they are placed on the finished paper stack conveying table as the base for paper stack palletizing. After the palletizing height reaches the set value, the finished paper stack conveying table outputs the pallet carrying the paper stack through the front door mechanism.

[0012] Further, after the rear paper patting mechanism finishes patting the paper stack front and back, the paper supporting inserting rod retracts to the lifting and conveying platform, the paper stack falls onto the stacked paper stack, the rear paper patting bracket retracts, the main table rear paper patting board swings back, after the left and right side paper patting boards pat the left and right sides of the paper stack to align them, the left and right side paper patting boards move away from each other.

[0013] Further, after the main table conveying belt positions the paper stack to the outlet position of the lifting and conveying platform, the paper supporting inserting rod extends. When the paper supporting inserting rod extends to the farthest position, the front end of the paper stack on the paper supporting inserting rod abuts against the front door plate.

[0014] Further, a vertical guide rail and a main table lifting drive motor are provided on the main frame. The sub-frame moves along the vertical guide rail through the main table lifting drive motor and is height-positioned by an encoder.

[0015] Further, when the device is working, the upper surface of the main table conveying belt is flush with the conveying surface of the previous conveying table. The previous conveying table cooperates with the main table conveying belt to convey the paper stack to the lifting and conveying platform. The lifting and conveying platform moves vertically along the sub-frame to the designated palletizing position to complete height positioning. The paper supporting inserting rod extends out of the lifting and conveying platform to convey the paper stack to the paper aligning conveying table. The main table rear paper patting board swings out, and the rear paper patting bracket extends to cooperate with the front door plate to pat the paper stack front and back to align it. After the paper stack is patted front and back to align it, the paper supporting inserting rod retracts to the lifting and conveying platform, the paper stack falls onto an empty pallet or the stacked paper stack, the rear paper patting bracket retracts, the main table rear paper patting board swings back, the left and right side paper patting boards move closer to each other to pat the left and right sides of the paper stack to align them. After the left and rear sides are patted to align them, the left and right side paper patting boards move away from each other. At the same time, the lifting and conveying platform moves vertically until the upper surface of the main table conveying belt is flush with the conveying surface of the previous conveying table to receive the next paper stack from the previous conveying table;

[0016] When the palletizing height reaches the set value, the front door plate opens, the finished paper stack conveying table outputs the pallet carrying the paper stack. After the output is completed, the front door plate closes. The empty pallet is pushed out of the empty pallet placing table by the empty pallet pushing plate and placed on the finished paper stack conveying table. At the same time, the previous conveying table cooperates with the main table conveying belt to convey the paper stack to the lifting and conveying platform.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1) By improving the automatic lifting and height positioning of the lifting and conveying platform in the main table, high stacking can be easily achieved, reaching a paper stack height that cannot be achieved by manual stacking, making the most of the space size of the factory. At the same time, it can operate continuously without manual intervention throughout the process, improving production efficiency;

[0019] 2) During the stacking process, the paper stack is first aligned front and back, and then aligned left and right after the paper stack drops. At the same time, the neatness inside the paper stack and between paper stacks is ensured, thus ensuring the neatness of the entire paper stack, which is beneficial to subsequent operations such as conveying, storing, and processing of the paper stack;

[0020] 3) After a paper stack is stacked, while the rear paper patting mechanism retracts and the left and right side patting plates move away from each other, the lifting and conveying platform also moves simultaneously to prepare to receive the next paper stack; after the stacking reaches the required height, the finished paper stack conveying table outputs the pallet of the paper stack. While the empty pallet pusher pushes out the empty pallet, the lifting and conveying platform and the main table conveying belt also move simultaneously to input the next paper stack, saving the cycle time during the alternation of the machine, ensuring that the entire device can operate continuously at high speed, and reducing the connection time between two stackings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention;

[0022] Figure 2 is a schematic diagram of the stacking effect;

[0023] Figure 3 is a schematic diagram of the lifting main table assembly;

[0024] Figure 4 is a schematic diagram of the rear paper patting mechanism;

[0025] Figure 5 is a schematic diagram of the left and right side paper patting mechanisms;

[0026] Figure 6 is a schematic diagram of the front door blocking mechanism.

[0027] Among them: 1. Main frame, 2. Main table lifting drive motor, 3. Lifting main table assembly, 31. Sub-frame, 4. Left and right side paper feeding mechanisms, 5. Front door blocking mechanism, 6. Paper aligning main frame, 7. Empty pallet placing table, 8. Finished paper stack conveying table, 9. Paper stack, 10. Empty pallet pushing plate, 11. Front conveyor table, 12. Paper stack, 13. Pallet, 3a. Main table conveyor belt, 3b. Paper supporting rod driving, 3c. Main table conveyor belt driving, 3d. Paper supporting rod, 3e. Rear paper slapping board of the main table, 3f. Rear slapping support, 3g. Rear slapping outrigger, 3h. Rear paper slapping drive, 4a. Side paper slapping moving frame, 4b. Side paper slapping position moving drive, 4c. Side paper slapping drive, 4d. Left and right side paper slapping boards, 5a. Front board moving frame, 5b. Door opening drive, 5c. Front door blocking moving drive, 5d. Front door blocking board. Detailed implementation mode

[0028] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Embodiment:

[0030] As Figure 1 and Figure 2 shown, the present invention provides an automatic lifting paper stack palletizing and aligning device, which is used to perform palletizing and aligning operations after the paper stack 9 is input, and finally output the paper stack 12. It includes a front conveyor table 11, a lifting main table, a paper aligning conveyor table, and an empty pallet placing table 7 arranged in sequence. The paper stack 9 passes through the front conveyor table 11 and the lifting main table in sequence and then enters the paper aligning conveyor table. The front conveyor table 11 is used to send the paper stack 9 to be palletized into the lifting main table. The lifting main table is used to adjust the height, cooperate with the front conveyor table 11 in height to receive the paper stack 9 of the front conveyor table 11, and cooperate with the empty pallet 13 or the paper stack 12 in the paper aligning conveyor table in height to convey the paper stack 9 to the paper aligning conveyor table. The paper stack 9 performs aligning and palletizing operations in the paper aligning conveyor table, and after completion, the paper stack 12 is output by the paper aligning conveyor table.

[0031] The front conveyor table 11 has a fixed height and maintains a fixed distance from the lifting main table. A conveying device is provided on the front conveyor table 11, which can receive the paper stack 9 output from the previous process and input the paper stack 9 into the lifting main table.

[0032] The lifting main table has two functions. One is to receive the paper stack 9 of the front conveyor table 11, and the other is to convey the paper stack 9 to the paper aligning conveyor table. As Figure 1 shown, the lifting main table includes the following components: a main frame 1, a main table lifting drive motor 2, and a lifting main table assembly 3. A vertical guide rail is provided on the main frame 1, and the lifting main table assembly 3 is arranged in the vertical guide rail of the main frame 1 and is driven by the main table lifting drive motor 2 to move up and down along the vertical guide rail direction, and the height positioning is accurately controlled by an encoder.

[0033] As Figure 3As shown in the figure, the lifting main table assembly 3 includes a secondary frame, a lifting and conveying platform, and a rear paper clapping mechanism respectively arranged on the secondary frame. The secondary frame, together with the lifting and conveying platform and the rear paper clapping mechanism arranged thereon, moves up and down along the vertical guide rail. The lifting and conveying platform includes a main table conveying belt 3a, a paper supporting rod driving mechanism 3b, a main table conveying belt driving mechanism 3c, and a paper supporting rod 3d. The main table conveying belt 3a and the paper supporting rod 3d are alternately arranged on the surface of the lifting and conveying platform. The main table conveying belt 3a is driven by the main table conveying belt driving mechanism 3c, and the paper supporting rod 3d moves horizontally through the paper supporting rod driving mechanism 3b and extends out of the lifting main table.

[0034] As Figure 4 shown in the figure, the rear paper clapping mechanism includes a main table rear paper clapping board 3e, a rear paper clapping support 3f, a rear paper clapping swing driving mechanism, and a rear paper clapping driving mechanism 3h. The rear paper clapping driving mechanism 3h and the rear paper clapping support 3f connected to the rear paper clapping driving mechanism 3h are respectively arranged on the secondary frame. The main table rear paper clapping board 3e and the rear paper clapping swing support rod 3g are respectively arranged on the rear paper clapping support 3f. The upper end of the main table rear paper clapping board 3e is swingably connected to the top end of the rear paper clapping support 3f, the middle part is connected to one end of the rear paper clapping swing support rod 3g, the other end of the rear paper clapping swing support rod 3g is connected to the rear paper clapping support 3f. The main table rear paper clapping board 3e is swung and fixed through the rear paper clapping swing support rod 3g. The rear paper clapping support 3f moves horizontally through the rear paper clapping driving mechanism 3h and drives the main table rear paper clapping board 3e to move horizontally. A plurality of vertically downward thin rods are arranged at the lower part of the main table rear paper clapping board 3e and are respectively inserted between two paper supporting rods 3d in sequence, which is convenient for the swing and movement of the main table rear paper clapping board 3e.

[0035] The alignment and stacking of the paper stack 9 are completed in the paper aligning and conveying table. As Figure 1 shown in the figure, the paper aligning and conveying table includes a finished paper stack conveying table 8, a paper aligning main frame 6, and a paper aligning component arranged on the paper aligning main frame 6. A horizontal guide rail is arranged on the paper aligning main frame 6. The paper aligning component includes a left and right side paper clapping mechanism 4 and a front door blocking mechanism 5.

[0036] As Figure 5 shown in the figure, the left and right side paper clapping mechanism 4 includes a side paper clapping moving frame 4a, a side paper clapping position moving driving mechanism 4b, a side paper clapping driving mechanism 4c, and left and right side paper clapping boards 4d respectively arranged on the side paper clapping moving frame 4a. In this embodiment, two left and right side paper clapping boards 4d are arranged, namely a left side paper clapping board and a right side paper clapping board. The left and right side paper clapping mechanism 4 moves along the horizontal guide rail. The side paper clapping position moving driving mechanism 4b can move the side paper clapping moving frame 4a according to the side paper clapping position set by the controller and is positioned through an encoder; a vertical guide rail is arranged in the side paper clapping moving frame 4a for the movement of the left and right side paper clapping boards 4d. The side paper clapping driving mechanism 4c drives the left and right side paper clapping boards 4d to move along the guide rail, and the moving position is controlled by the encoder.

[0037] As Figure 6As shown, the front door mechanism 5 includes a front panel moving frame 5a and a door opening drive 5b, a front door moving drive 5c and a front door plate 5d respectively arranged on the front panel moving frame 5a. In this embodiment, two front door plates are arranged, namely the right front door plate 5d and the left front door plate 5d. The front door assembly moves along the horizontal guide rail, the front door moving drive 5c drives the front panel moving frame 5a to move along the guide rail, and its position is located by an encoder, and the door opening drive 5b controls the front door plate 5d to open or close.

[0038] like Figure 1 As shown, the empty pallet placement table 7 is connected to the finished paper pile conveying table 8, and the finished paper pile conveying table 8 is used to output the pallet 13 carrying the stacked paper pile 12. Unused empty pallets 13 are placed on the empty pallet placement table 7. An empty pallet push plate 10 is provided on the empty pallet placement table 7. The empty pallet push plate 10 pushes the empty pallet 13 to the stacking position in the paper conveying table as the base for stacking.

[0039] The main actions of this device include: paper stack input to the lifting main platform, paper stack input to the paper aligning conveying platform, paper stack aligning and stacking, paper stack output and empty pallet pushing.

[0040] Paper stack input lifting main platform: Figure 2 As shown, when the paper stack 9 enters the front conveying platform 11 to wait, the lifting conveying platform automatically moves in the vertical direction along with the sub-frame until the upper surface of the main platform conveying belt 3a is flush with the conveying surface of the front conveying platform 11. At this time, the main platform conveying belt 3a and the front conveying platform 11 run synchronously to input the paper stack 9 into the lifting main platform. When the tail end of the paper stack 9 leaves the front conveying platform 11, the action of inputting the paper stack 9 into the lifting main platform is completed;

[0041] Paper stack input paper conveyor: Figure 2 and Figure 3 As shown, after the tail end of the paper stack 9 leaves the front conveyor platform 11, the lifting and conveying platform is automatically lifted to the designated stacking position along with the sub-frame. The designated stacking position includes a position that matches the height of the pallet 13 on the finished paper pile conveyor platform 8 and a position that matches the height of the stacked paper pile 12. At the same time, the main platform conveyor belt driver 3c drives the main platform conveyor belt 3a to position the paper stack 9 at the exit position of the lifting and conveying platform. After the positioning is completed, the main platform conveyor belt driver 3c drives the main platform conveyor belt 3a to run, and at the same time, the paper support rod driver 3b drives the paper support rod 3d to extend into the paper aligning conveyor platform. The two cooperate with each other, and the paper stack 9 extends into the paper aligning conveyor platform together with the paper support rod 3d until the front end of the paper stack 9 is aligned with the front baffle plate 5d.

[0042] Aligning and stacking the paper stack: Aligning the paper stack 9 includes front and back alignment and left and right side alignment. First, the front and back alignment of the paper stack 9 is performed. Figure 2 and Figure 4As shown, when the paper stack 9 extends and its front end is aligned and positioned against the front baffle door panel 5d, the rear paper slapping mechanism operates. The rear paper slapping plate of the main table is driven to swing out and fixed by the rear paper slapping driving, preparing for paper aligning. The rear paper slapping bracket 3f is driven by the rear paper slapping driving 3h to drive the rear paper slapping plate 3e of the main table to move horizontally, cooperating with the front baffle door panel 5d to complete the front and rear alignment of the paper stack 9. After the front and rear alignment is completed, the paper supporting inserting rod driving 3b drives the paper supporting inserting rod 3d to retract, and the paper stack 9 falls onto the empty pallet 13 or the paper stack 12 in the palletizing area for palletizing. At the same time, the rear paper slapping bracket 3f retracts, and the rear paper slapping plate 3e of the main table swings back. After the paper supporting inserting rod 3d retracts to its in-place position, the main table lifting driving motor 2 drives the lifting main table assembly 3 to return to the paper receiving position, preparing to input the paper stack 9 from the previous conveying table 11 into the lifting main table again. Meanwhile, the side paper slapping driving 4c drives the right side paper slapping plate and the left side paper slapping plate to move along the guide rail and approach each other to perform left and right side alignment on the paper stack 12. After completion, they move away from each other and open to the maximum position.

[0043] Paper stack output: After the palletizing height reaches the set value, it is necessary to output the palletized paper stack 12 to the subsequent equipment. At this time, the door opening driving 5b drives the right front baffle door panel 5d and the left front baffle door panel 5d to open, and the finished paper stack conveying table 8 outputs the paper stack 12.

[0044] Empty pallet pushing in: After the paper stack 12 is output by the finished paper stack conveying table 8, the door opening driving 5b drives the right front baffle door panel 5d and the left front baffle door panel 5d to close. At the same time, the empty pallet pushing plate 10 automatically pushes the pre-placed pallet 13 into the palletizing position on the finished paper stack conveying table 8 to start palletizing a new paper stack 12.

[0045] In this embodiment, the working process of the device includes two situations:

[0046] When palletizing the paper stack, it includes the following steps:

[0047] 1) The conveying and lifting platform moves up and down along with the auxiliary frame until the upper surface of the main table conveying belt 3a is flush with the conveying surface of the previous conveying table 11. The previous conveying table 11 and the main table conveying belt 3a act together to input the paper stack 9 into the lifting and conveying platform.

[0048] 2) The main table of the lifting and conveying platform moves up and down along with the auxiliary frame again to the designated palletizing position. The main table conveying belt 3a and the paper supporting inserting rod 3d act together. The moving inserting rod extends to lift the main table, driving the paper stack 9 placed on it and conveying the paper stack 9 to the paper aligning conveying table.

[0049] 3) The rear paper slapping mechanism operates, and the front baffle door panel 5d and the rear paper slapping plate 3e of the main table are used to perform front and rear alignment on the paper stack 9 on the moving inserting rod.

[0050] 4) The moving inserting rod and the rear paper slapping plate 3e of the main table retract to the lifting main table, causing the paper stack 9 to fall onto the empty pallet 13 or the already palletized paper stack 12.

[0051] 5) The left and right pusher plates 4d move closer to each other to align the left and right sides of the paper stack 12.

[0052] 6) The left and right pusher plates 4d move away from each other, and at the same time, the lifting and conveying platform returns to prepare to receive the next paper stack 9 from the previous conveying table 11.

[0053] When the height of the stacked paper stack 12 reaches the set value and a new paper stack 12 needs to be stacked, the following steps also need to be completed:

[0054] 7) The front door moving frame moves horizontally, and the front door plate 5d opens, and the finished paper stack conveying table 8 outputs the pallet 13 carrying the paper stack 12.

[0055] 8) After the empty pallet pusher 10 pushes the pallet 13 out of the empty pallet placement table 7 and places it at the stacking position of the finished paper stack conveying table 8, the front door moving frame moves horizontally to the position where the front door plate 5d and the placement position of the pallet 13 cooperate with each other. At the same time, the lifting and conveying platform receives the next paper stack 9 from the previous conveying table 11 to stack a new paper stack 12.

[0056] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any staff familiar with the technical field of the present invention can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An automatic lifting paper stack palletizing and aligning device is used for inputting a paper stack (9), and aligning and palletizing it and then outputting a paper pile (12), and is characterized in that, The device includes a front conveying table (11), a lifting main table, and a paper-aligning conveying table arranged in sequence. The lifting main table includes a main frame (1) and a lifting main table assembly (3) arranged on the main frame (1). The lifting main table assembly (3) moves in the vertical direction and performs height positioning. The lifting main table assembly (3) conveys the paper stack (9) on the front conveying table (11) into the paper-aligning conveying table for aligning and stacking. The paper-aligning conveying table includes a finished paper stack conveying table (8), a paper-aligning main frame (6), and a paper-patting assembly arranged on the paper-aligning main frame (6). The lifting main table assembly (3) and the paper-patting assembly cooperate with each other to align the paper stack (9) front and back and left and right. After the stacking is completed, the finished paper stack conveying table (8) outputs the paper stack (12). The lifting main table assembly (3) includes a sub-frame (31), a lifting and conveying platform, and a rear paper-patting mechanism respectively arranged on the sub-frame (31). The sub-frame (31) drives the lifting and conveying platform and the rear paper-patting mechanism to move together in the vertical direction. The lifting and conveying platform includes a main table conveying belt (3a), a paper-supporting inserting rod (3d), a paper-supporting inserting rod drive (3b), and a main table conveying belt drive (3c). The main table conveying belt (3a) and the paper-supporting inserting rod (3d) are alternately arranged on the surface of the lifting and conveying platform. The main table conveying belt drive (3c) drives the main table conveying belt (3a) to move. The paper-supporting inserting rod drive (3b) drives the paper-supporting inserting rod (3d) to move horizontally and extend out of the lifting main table. The main table conveying belt (3a) and the paper-supporting inserting rod (3d) cooperate with each other to convey the paper stack (9) on the paper-supporting inserting rod (3d) into the paper-aligning conveying table. The rear paper-patting mechanism and the paper-patting assembly cooperate with each other to align the paper stack (9) front and back. The rear paper-patting mechanism includes a rear paper-patting drive (3h), a rear paper-patting support (3f) connected to the rear paper-patting drive (3h), a main table rear paper-patting board (3e), and a rear paper-patting swing strut (3g) respectively arranged on the sub-frame (31). The upper end of the main table rear paper-patting board (3e) is swingably connected to the top end of the rear paper-patting support (3f), and the middle part is connected to one end of the rear paper-patting swing strut (3g). The other end of the rear paper-patting swing strut (3g) is connected to the rear paper-patting support (3f). After the paper stack (9) is conveyed into the paper-aligning conveying table, the main table rear paper-patting board (3e) is swung out and fixed through the rear paper-patting swing strut (3g). The rear paper-patting support (3f) moves horizontally through the rear paper-patting drive (3h), driving the main table rear paper-patting board (3e) to move horizontally and cooperate with the paper-patting assembly to align the paper stack (9) on the paper-supporting inserting rod (3d) front and back. The sub-frame (31) moves along the vertical guide rail through the main table lifting drive motor (2) and performs height positioning through the encoder. When the device is working, the upper surface of the main table conveyor belt (3a) is flush with the conveying surface of the previous conveyor table (11). The previous conveyor table (11) cooperates with the main table conveyor belt (3a) to convey the paper stack (9) to the lifting and conveying platform. The lifting and conveying platform moves vertically along the auxiliary frame (31) to the designated palletizing position to complete the height positioning. The paper support inserting rod (3d) extends out of the lifting and conveying platform to convey the paper stack (9) to the paper aligning conveyor table. The main table rear paper clapper (3e) swings out, and the rear support (3f) extends to cooperate with the front door panel (5d) to align the paper stack (9) front and back. After the paper stack (9) is aligned front and back, the paper support inserting rod (3d) retracts into the lifting and conveying platform. The paper stack (9) falls onto the empty pallet (13) or the stacked paper pile (12). The rear support (3f) retracts, and the main table rear paper clapper (3e) swings back. The left and right side paper clappers (4d) move closer to each other to align the paper stack (9) on the left and right sides. After the left and rear sides are aligned, the left and right side paper clappers (4d) move away from each other. At the same time, the lifting and conveying platform moves vertically until the upper surface of the main table conveyor belt (3a) is flush with the conveying surface of the previous conveyor table (11) to receive the next paper stack (9) from the previous conveyor table (11). When the palletizing height reaches the set value, the front door panel (5d) opens, and the finished paper pile conveyor table (8) outputs the pallet (13) carrying the paper pile (12). After the output is completed, the front door panel (5d) closes. The empty pallet (13) is pushed out of the empty pallet placing table (7) by the empty pallet pusher (10) and placed on the finished paper pile conveyor table (8). At the same time, the previous conveyor table (11) cooperates with the main table conveyor belt (3a) to convey the paper stack (9) to the lifting and conveying platform.

2. The automatic lifting type paper stack palletizing and aligning device according to claim 1, wherein A horizontal guide rail is provided inside the paper aligning main frame (6). The paper clapping assembly includes a left and right side paper clapping mechanism (4) and a front door mechanism (5) respectively arranged on the paper aligning main frame (6). The left and right side paper clapping mechanism (4) includes a side clapping moving frame (4a) arranged in the horizontal guide rail of the paper aligning main frame (6), and a left and right side paper clapper (4d), a side paper clapping drive (4c) and a side clapping position moving drive (4b) respectively arranged on the side clapping moving frame (4a). The side clapping moving frame (4a) moves along the horizontal guide rail through the side clapping position moving drive (4b). A vertical guide rail is provided inside the side clapping moving frame (4a). The left and right side paper clappers (4d) move along the vertical guide rail through the side paper clapping drive (4c) to move closer to each other to align the left and right sides of the paper stack (9). The front door mechanism (5) cooperates with the main table rear paper clapper (3e) to align the paper stack (9) front and back.

3. The automatic lifting paper stack palletizing and aligning device according to claim 2, characterized in that, The described front door mechanism (5) includes a front plate moving frame (5a) disposed within the horizontal guide rail of the paper aligning main frame (6), and a front door plate (5d), a front door moving drive (5c), and an opening drive (5b) respectively disposed on the front plate moving frame (5a). The front plate moving frame (5a) moves along the horizontal guide rail through the front door moving drive (5c). The front door plate (5d) abuts against one side of the paper stack (12) and cooperates with the main table rear paper patting plate (3e) to perform front and rear alignment of the paper stack (9). After the stacking height of the paper stack (12) reaches the set value, stacking is completed. The opening drive (5b) drives the front door plate (5d) to open, and the finished paper stack conveying table (8) outputs the paper stack (12).

4. An automatic lifting paper stack palletizing and aligning device according to claim 3, characterized in that, The device further includes an empty pallet placing table (7) connected to the finished paper stack conveying table (8) and an empty pallet pushing plate (10) disposed on the empty pallet placing table (7). Empty pallets are placed on the empty pallet placing table (7). After the empty pallets are pushed out of the empty pallet placing table (7) by the empty pallet pushing plate (10), they are placed on the finished paper stack conveying table (8) as the base for paper stack stacking. When the stacking height reaches the set value, the finished paper stack conveying table (8) outputs the pallet (13) carrying the paper stack (12) through the front door mechanism (5).

5. The automatic lifting type paper stack palletizing and aligning device according to claim 3, wherein After the rear paper patting mechanism completes the front and rear alignment of the paper stack (9), the paper supporting insertion rod (3d) retracts to the lifting and conveying platform, the paper stack (9) falls onto the stacked paper stack (12), the rear paper patting support (3f) retracts, the main table rear paper patting plate (3e) swings back, and after the left and right side paper patting plates (4d) align the left and right sides of the paper stack (12), the left and right side paper patting plates (4d) move away from each other.

6. An automatic lifting paper stack palletizing and aligning device according to claim 3, characterized in that, After the main table conveying belt (3a) positions the paper stack (9) to the outlet position of the lifting and conveying platform, the paper supporting insertion rod (3d) extends. When the paper supporting insertion rod (3d) extends to the farthest position, the front end of the paper stack (9) on the paper supporting insertion rod (3d) abuts against the front door plate (5d).

7. An automatic lifting paper stack palletizing and aligning device according to claim 3, characterized in that, A vertical guide rail and a main table lifting drive motor (2) are provided on the main frame (1).

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