Paper loading and lifting mechanism and paper mounting device

Abstract

The present application discloses a feeding and paper lifting mechanism and a paper mounting device. The feeding and paper lifting mechanism includes: a conveying module, a positioning module and a lifting module. The conveying module includes a conveying frame and a plurality of guide rollers; the positioning module includes a positioning frame, a first positioning plate, a second positioning plate, a plurality of fixed rods and a plurality of sliding rods, and the lifting module drives and connects the positioning frame. The lifting module can drive the positioning frame to lift and lower the positioning module, so that the support surface of the sliding rod located in the first interval is higher or lower than the conveying surface of the guide roller, thereby raising the pallet carrying the cardboard on the guide roller to one side of the feeding end of the paper mounting machine, so as to facilitate the conveying of the cardboard into the paper mounting machine. Since the sliding rod can slide relative to the fixed rod to drive the second positioning plate to approach the first positioning plate, the first positioning plate and the second positioning plate can be pressed against both sides of the cardboard to regularize and limit the cardboard, so as to avoid the cardboard from being offset during the lifting process of the pallet.

Description

Technical Field

[0001] The present application relates to the technical field of paperboard transportation equipment, and in particular to a feeding and paper lifting mechanism and a paper mounting device. Background Art

[0002] The paper laminating machine is generally erected at a certain height. In the related art, it is necessary to lift the cardboard stacked on the pallet to one side of the feeding end of the paper laminating machine through a paper lifting mechanism, and then push the cardboard on the paper lifting mechanism into the paper laminating machine through a pushing mechanism. The cardboard at the upper end of the paper pile may shift during the rising process, resulting in the problem that some cardboard cannot enter the paper laminating machine when the pushing mechanism pushes the cardboard. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a feeding and lifting mechanism, which can limit the position of the paperboard during the process of lifting the paperboard.

[0004] The present application also proposes a paper mounting device having the above-mentioned feeding and paper lifting mechanism.

[0005] According to the first aspect of the present application, the loading and paper lifting mechanism includes: a conveying module, a positioning module and a lifting module.

[0006] The conveying module includes a conveying frame and a plurality of guide rollers, wherein the guide rollers are rotatably arranged on the conveying frame, the guide rollers are distributed along a first direction, and a first interval is formed between two adjacent guide rollers;

[0007] The positioning module includes a positioning frame, a first positioning plate, a second positioning plate, a plurality of fixed rods and a plurality of sliding rods, the fixed rods and the sliding rods correspond to each other one by one, the fixed rods and the sliding rods are located in the first interval, the fixed rods are fixedly connected to the positioning frame, the first positioning plate is fixedly connected to one side of the positioning frame, the second positioning plate is fixedly connected to an end of the sliding rod away from the first positioning plate, an accommodating space for entering the pallet is formed between the first positioning plate and the second positioning plate, and the sliding rod is slidably arranged on the fixed rod to drive the second positioning plate to approach or move away from the first positioning plate;

[0008] The lifting module is drivingly connected to the positioning frame, and is used to lift the positioning frame and make the supporting surface of the sliding rod higher or lower than the conveying surface of the guide roller.

[0009] According to the first aspect of the present application, the feeding and lifting mechanism has at least the following beneficial effects: the lifting module can drive the positioning frame to lift and lower the positioning module, so that the support surface of the sliding rod located in the first interval is higher or lower than the conveying surface of the guide roller, thereby raising the pallet carrying the cardboard on the guide roller to one side of the feeding end of the paper laminating machine, so as to facilitate the conveying of the cardboard into the paper laminating machine. Since the sliding rod can slide relative to the fixed rod to drive the second positioning plate to approach the first positioning plate, the first positioning plate and the second positioning plate can be pressed against both sides of the cardboard to regularize and limit the cardboard, so as to avoid the cardboard from being offset during the lifting process of the pallet.

[0010] According to some embodiments of the present application, the positioning module further includes a positioning drive, the second positioning plate is connected to the plurality of sliding rods, and the positioning drive drives the second positioning plate.

[0011] According to some embodiments of the present application, the fixed rod includes a first rod and a second rod fixedly connected to each other, one or both of the first rod and the second rod are fixedly connected to the positioning frame, a rotatable bearing is arranged between the first rod and the second rod, the sliding rod is located between the first rod and the second rod, and the sliding rod is slidably matched with the bearing.

[0012] According to some embodiments of the present application, a gap is formed between the upper end of the first rod and the upper end of the second rod, and the sliding rod is located in the gap.

[0013] According to some embodiments of the present application, both ends of the first rod are fixedly connected to the positioning frame, the length of the second rod is shorter than that of the first rod, and one end of the second rod close to the second positioning plate forms an activity space with the inner side of the positioning frame, a notch is formed in the first rod corresponding to the activity space, and the second positioning plate can be movably arranged in the activity space and the notch.

[0014] According to some embodiments of the present application, the second positioning plate includes a first connecting part and a plurality of second connecting parts, the first connecting part is connected to the positioning drive member, the second connecting part is arranged at the lower end of the first connecting part, each of the first connecting part is correspondingly connected to one of the sliding rods, a second interval is formed between two adjacent second connecting parts, and both ends of the guide roller are located in the second interval.

[0015] According to some embodiments of the present application, the width of the second connecting portion is greater than the width of the gap.

[0016] According to some embodiments of the present application, the lifting module includes a lifting drive component and a lifting frame, the conveying module is located in the lifting frame, the lifting drive component is driven and connected to the positioning frame, the positioning frame is provided with a guide wheel, the inner wall of the lifting frame is provided with a guide rail, and the guide wheel slides in cooperation with the guide rail.

[0017] According to the paper mounting device of the second aspect embodiment of the present application, the loading and paper lifting mechanism of the first aspect embodiment.

[0018] The paper mounting device according to the second aspect of the present application has at least the following beneficial effects: all the beneficial effects of the loading and paper lifting mechanism of the first aspect are no longer repeated here.

[0019] According to some embodiments of the present application, the paper mounting device also includes a loading conveyor line, a recycling conveyor line, a paper mounting machine and a paper pushing mechanism. The paper mounting machine and the recycling conveyor line are distributed along the height direction. The two ends of the conveying module are respectively connected to the loading conveyor line and the recycling conveyor line. The feeding end of the paper mounting machine and the paper pushing mechanism are located on one side of the lifting path of the positioning module. The paper pushing mechanism is used to push the cardboard in the positioning module to the paper mounting machine.

[0020] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 A partial structural schematic diagram of a paper mounting device according to a second aspect of the present application;

[0023] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0024] Figure 3 for Figure 1 The structural diagram of the positioning module;

[0025] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0026] Figure 5 for Figure 2 A cross-sectional view of the positioning module;

[0027] Figure 6 for Figure 5 Enlarged view of point C in the middle.

[0028] Reference numerals:

[0029] Conveying module 100, conveying frame 110, guide roller 120, first interval 121;

[0030] Positioning module 200; positioning frame 210, guide wheel 211; first positioning plate 220; second positioning plate 230; first connecting portion 231, second connecting portion 232, second interval 2321; fixing rod 240, first rod 241, notch 2411, second rod 242, movable space 2421, bearing 243, gap 244; sliding rod 250; positioning drive member 260;

[0031] Lifting module 300, lifting drive member 310, lifting frame 320, guide rail 330;

[0032] The feeding conveying line 400 and the paper pushing mechanism 500 . DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0034] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0035] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0037] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0038] Reference Figures 1 to 4 According to the first aspect of the present application, the loading and lifting mechanism includes: a conveying module 100, a positioning module 200 and a lifting module 300.

[0039] The conveying module 100 includes a conveying frame 110 and a plurality of guide rollers 120 . The guide rollers 120 are rotatably disposed on the conveying frame 110 . The guide rollers 120 are distributed along a first direction, and a first interval 121 is formed between two adjacent guide rollers 120 .

[0040] It is understandable that the plurality of guide rollers 120 are distributed along the first direction, and the guide rollers 120 are rotatably disposed on the conveyor frame 110, so that when the guide rollers 120 rotate, the pallets above them can be conveyed along the first direction. Specifically, the length direction of the guide rollers 120 is parallel to the second direction, and the second direction is perpendicular to the first direction.

[0041] The positioning module 200 includes a positioning frame 210, a first positioning plate 220, a second positioning plate 230, a plurality of fixed rods 240 and a plurality of sliding rods 250. The fixed rods 240 and the sliding rods 250 correspond to each other one by one. The fixed rods 240 and the sliding rods 250 are located in the first interval 121. The fixed rods 240 are fixedly connected to the positioning frame 210. The first positioning plate 220 is fixedly connected to one side of the positioning frame 210. The second positioning plate 230 is fixedly connected to an end of the sliding rod 250 away from the first positioning plate 220. An accommodating space for entering the pallet is formed between the first positioning plate 220 and the second positioning plate 230. The sliding rod 250 is slidably arranged on the fixed rod 240 to drive the second positioning plate 230 to approach or move away from the first positioning plate 220.

[0042] It can be understood that the first positioning plate 220 is fixed to one side of the positioning frame 210, and the second positioning plate 230 is fixed to one end of the sliding rod 250 away from the first positioning plate 220. When the sliding rod 250 slides relative to the fixed rod 240, the sliding rod 250 can drive the second positioning plate 230 to approach or move away from the first positioning plate 220 to adjust the size of the accommodating space, so that the first positioning plate 220 and the second positioning plate 230 clamp the cardboard on the pallet in the accommodating space to limit and regularize the cardboard. Specifically, the first positioning plate 220 and the second positioning plate 230 are distributed along the second direction, and the length direction of the sliding rod 250 and the fixed rod 240 is parallel to the second direction. The sliding rod 250 can slide on the fixed rod 240 along the second direction to drive the second positioning plate 230 to approach the first positioning plate 220 along the second direction.

[0043] The lifting module 300 is driven and connected to the positioning frame 210 to lift and lower the positioning frame 210 and make the supporting surface of the sliding rod 250 higher or lower than the conveying surface of the guide roller 120 .

[0044] It is understandable that the lifting module 300 drives the connection positioning frame 210 to drive the positioning module 200 to rise and fall.

[0045] In one operation mode of the feeding and lifting mechanism of the present application, the pallet carrying the cardboard is conveyed to the guide roller 120 of the conveying module 100 through the front feeding conveyor line 400, and the pallet is located in the accommodation space between the first positioning plate 220 and the second positioning plate 230. In addition, since the fixed rod 240 and the sliding rod 250 of the positioning module 200 are located in the first interval 121 between the guide rollers 120, at this time, the sliding rod 250 and the fixed rod 240 are located below the pallet on the guide roller 120. Then, the sliding rod 250 slides relative to the fixed rod 240 in the second direction to drive the second positioning plate 230 to approach the first positioning plate 220 in the second direction, and the first positioning plate 220 and the second positioning plate 230 contact the two sides of the cardboard on the pallet in the second direction to regularize and limit the stacked cardboard. After the cardboard is regulated and limited, the positioning frame 210 is driven to rise by the lifting module 300. The rising of the positioning frame 210 can drive the entire positioning module 200 to rise. The sliding rod 250 will be connected to the bottom of the pallet during the rising process. In the rising process, the sliding rod 250 supports the pallet through the fixed rod 240 fixedly connected to the positioning frame 210, and drives the pallet to rise together. In the rising process, the first positioning plate 220 and the second positioning plate 230 keep in contact with both sides of the cardboard to limit the cardboard to prevent the cardboard from deviating to both sides in the second direction, and the feeding end of the paper-mounting machine is set on one side of the first direction of the lifting path of the positioning module 200. Therefore, the deviation of the cardboard toward the first direction will not affect the cardboard from entering the paper-mounting machine. Specifically, a paper pushing mechanism 500 can be set on one side of the lifting path of the positioning module 200, and is arranged opposite to the paper-mounting machine. After the positioning module 200 reaches a specified height, the paper pushing mechanism 500 pushes the cardboard on the pallet to push the stacked cardboard into the paper-mounting machine. After all the cardboards on the pallet are pushed to the paper laminating machine, the pallet is unloaded, and the lifting module 300 drives the positioning frame 210 to descend, so that the sliding rod 250 drives the unloaded pallet to descend, until the fixed rod 240 and the sliding rod 250 return to the first interval 121, the supporting surface of the sliding rod 250 is lower than the conveying surface of the guide roller 120, and the unloaded pallet will be loaded on the guide roller 120 again.

[0046] In some other operation modes, after the positioning module 200 moves to one side of the paper laminating machine, the sliding rod 250 may move relative to the fixing rod 240 .

[0047] In some embodiments, the conveying module 100 may further include a motor and a transmission belt, the transmission belt is wound around the end of the guide roller 120, and the motor drives the transmission belt to rotate to drive the guide roller 120 to rotate, so that the guide roller 120 drives the pallet to be transported toward the recycling conveyor line at the rear to realize the transportation and recycling of the pallet. Of course, the empty pallet on the guide roller 120 can also be taken away and recycled by a forklift.

[0048] Reference Figure 2 and Figure 4 According to some embodiments of the present application, the positioning module 200 further includes a positioning driver 260 , the second positioning plate 230 is connected to the plurality of sliding rods 250 , and the positioning driver 260 drives the second positioning plate 230 .

[0049] It is understandable that a positioning drive 260 is provided on the positioning frame 210, and the positioning drive 260 is simultaneously connected to the plurality of sliding rods 250 through the second positioning plate 230, so that when the positioning drive 260 pushes the second positioning plate 230 to move along the second direction, the plurality of sliding rods 250 can be driven to slide along the second direction relative to the fixed rod 240. Specifically, the positioning drive 260 is a cylinder.

[0050] In some other embodiments, the second positioning plate 230 may also include multiple ones, and correspond one to one with the sliding rods 250. The positioning driving member 260 drives the multiple sliding rods 250 respectively so that the sliding stroke of each sliding rod 250 is inconsistent, so as to adapt to the cardboard with uneven sides.

[0051] Reference Figure 5 and Figure 6 According to some embodiments of the present application, the fixed rod 240 includes a first rod member 241 and a second rod member 242 that are fixedly connected to each other, one or both of the first rod member 241 and the second rod member 242 are fixedly connected to the positioning frame 210, a rotatable bearing 243 is arranged between the first rod member 241 and the second rod member 242, the sliding rod 250 is located between the first rod member 241 and the second rod member 242, and the sliding rod 250 is slidably matched with the bearing 243.

[0052] It can be understood that both ends of one of the first rod 241 and the second rod 242 are fixed on both sides of the positioning frame 210, and the first rod 241 and the second rod 242 are fixedly connected to each other, so that the first rod 241 and the second rod 242 are fixed on the positioning frame 210. A bearing 243 is arranged between the first rod 241 and the second rod 242, and the bearing 243 can rotate relative to the first rod 241 and the second rod 242. The bearing 243 is arranged in the vertical direction, and the axis of the bearing 243 is perpendicular to the second direction. The sliding rod 250 is mounted on the outer circumference of the bearing 243. Under the driving action of the positioning driving member 260, the sliding rod 250 can slide on the outer circumference of the bearing 243, and when the sliding rod 250 slides on the outer circumference of the bearing 243, the bearing 243 rotates. Therefore, the sliding cooperation between the bearing 243 and the sliding rod 250 can improve the sliding smoothness of the sliding rod 250, reduce the wear of the sliding rod 250 during the sliding process, and increase the service life of the sliding rod 250.

[0053] Specifically, there are a plurality of bearings 243 , and the bearings 243 in the same fixing rod 240 are distributed along the second direction.

[0054] Reference Figure 6 According to some embodiments of the present application, a gap 244 is formed between the upper end of the first rod 241 and the upper end of the second rod 242 , and the sliding rod 250 is located in the gap 244 .

[0055] It is understandable that since the sliding rod 250 is located between the first rod 241 and the second rod 242 and in the gap 244, the opposite side of the first rod 241 and the second rod 242 can limit the sliding rod 250 and ensure that the sliding direction of the sliding rod 250 is correct.

[0056] Reference Figure 3 and Figure 4 According to some embodiments of the present application, both ends of the first rod 241 are fixedly connected to the positioning frame 210, the length of the second rod 242 is shorter than that of the first rod 241, and one end of the second rod 242 close to the second positioning plate 230 forms an activity space 2421 with the inner side of the positioning frame 210, the first rod 241 forms a notch 2411 corresponding to the activity space 2421, and the second positioning plate 230 is movably arranged in the activity space 2421 and the notch 2411.

[0057] It can be understood that the first rod 241 extends toward the second direction and its two ends are fixedly connected to the two sides opposite to the positioning frame 210, and the length of the second rod 242 is shorter than that of the first rod 241, and the second rod 242 is fixed on the first rod 241 in the middle, thereby, one end of the second rod 242 will have a certain distance from the inner side of the positioning frame 210, so that an activity space 2421 is formed between the end of the second rod 242 close to the second positioning plate 230 and the inner side of the positioning frame 210, and the first rod 241 forms a notch 2411 corresponding to the activity space 2421, thereby, the second positioning plate 230 can move horizontally in the activity space 2421 and the notch 2411 along the second direction. By opening the notch 2411 on the first rod 241 and forming the activity space 2421 to provide a certain space for the second positioning plate 230 to move, and limiting the sliding distance of the second positioning plate 230 by the notch 2411 and the activity space 2421, the sliding distance of the sliding rod 250 is limited.

[0058] Reference Figure 2 and Figure 4According to some embodiments of the present application, the second positioning plate 230 includes a first connection portion 231 and a plurality of second connection portions 232. The first connection portion 231 is connected to the positioning drive member 260. The second connection portion 232 is arranged at the lower end of the first connection portion 231. Each first connection portion 231 is correspondingly connected to a sliding rod 250. A second interval 2321 is formed between two adjacent second connection portions 232. Both ends of the guide roller 120 are located in the second interval 2321.

[0059] It can be understood that the first connection part 231 is extended along the first direction, and the lower end of the first connection part 231 can be connected to multiple second connection parts 232. Since each second connection part 232 is correspondingly connected to a sliding rod 250, the positioning drive member 260 can drive the multiple sliding rods 250 to move by driving the first connection part 231. It should be understood that the sliding rod 250 is connected by the second connecting portion 232 so that the horizontal height of the sliding rod 250 is lower than the horizontal height of the first connecting portion 231, and since a second interval 2321 is formed between two adjacent second connecting portions 232, and the second interval 2321 is arranged corresponding to the guide roller 120, when the sliding rod 250 is located in the first interval 121, the second connecting portion 232 is also located in the first interval 121, and the guide roller 120 will be located in the second interval 2321, and the first connecting portion 231 can be located above the guide roller 120, thereby, the installation position of the positioning drive member 260 can be unaffected by the sliding rod 250, or in other words, the sliding rod 250 can be sunk to a certain height through the second connecting portion 232, and the installation position of the positioning drive member 260 does not affect the sliding rod 250 entering the first interval 121.

[0060] Reference Figure 4 According to some embodiments of the present application, the width of the second connection portion 232 is greater than the width of the gap 244 .

[0061] It is understandable that the width of the second connection portion 232 is greater than the width of the gap 244 so that the second connection portion 232 cannot enter the gap 244, thereby limiting the sliding distance of the sliding rod 250. Specifically, the second connection portion 232 is located in the notch 2411 and the activity space 2421.

[0062] Reference Figure 1 According to some embodiments of the present application, the lifting module 300 includes a lifting drive 310 and a lifting frame 320. The conveying module 100 is located in the lifting frame 320. The lifting drive 310 drives the connected positioning frame 210. The positioning frame 210 is provided with a guide wheel 211. The inner wall of the lifting frame 320 is provided with a guide rail 330. The guide wheel 211 slides in cooperation with the guide rail 330.

[0063] It can be understood that the lifting drive 310 can drive the positioning frame 210 to rise and fall. During the lifting process of the positioning frame 210, the guide wheel 211 on the positioning frame 210 can slide relative to the guide rail 330 in the lifting frame 320 to limit the lifting path of the positioning frame 210, ensuring that the positioning frame 210 can be lifted in the vertical direction to avoid displacement of the positioning frame 210 during the lifting process.

[0064] Specifically, there are multiple guide wheels 211 and multiple guide rollers 120 . Each guide rail 330 corresponds to at least one guide wheel 211 , and the guide rail 330 is arranged along the vertical direction.

[0065] Reference Figure 1 , according to the paper mounting device of the second aspect embodiment of the present application, the loading and paper lifting mechanism of the first aspect embodiment.

[0066] The paper mounting device according to the second aspect of the present application has at least the following beneficial effects: all the beneficial effects of the loading and paper lifting mechanism of the first aspect are no longer repeated here.

[0067] According to some embodiments of the present application, the paper mounting device also includes a loading conveyor line 400, a recycling conveyor line (not shown in the figure), a paper mounting machine (not shown in the figure) and a paper pushing mechanism 500. The paper mounting machine and the recycling conveyor line are distributed along the height direction. The two ends of the conveying module 100 are respectively connected to the loading conveyor line 400 and the recycling conveyor line. The feeding end of the paper mounting machine and the paper pushing mechanism 500 are located on one side of the lifting path of the positioning module 200. The paper pushing mechanism 500 is used to push the cardboard in the positioning module 200 to the paper mounting machine.

[0068] It can be understood that the feeding conveyor line 400 and the recovery conveyor line are arranged on both sides of the conveying module 100 in the first direction, and the discharge end of the feeding conveyor line 400 is connected to the feed end of the conveying module 100, and the feed end of the recovery conveyor line is connected to the discharge end of the conveying module 100. The feed end of the paper laminating machine is located on one side of the first direction of the lifting path of the positioning module 200, and the paper pushing mechanism 500 is located on the other side of the first direction of the lifting path of the positioning module 200.

[0069] Thus, the loading conveyor line 400 can convey the pallet stacked with cardboards to the conveying module 100, and the lifting module 300 cooperates with the positioning module 200 to raise the pallet to between the paper laminating machine and the paper pushing mechanism 500, and the paper pushing mechanism 500 pushes the cardboard along the first direction to push the cardboard into the paper laminating machine. Then, the lifting module 300 cooperates with the positioning module 200 to send the empty pallet back to the conveying module 100, and the conveying module 100 sends the empty pallet to the recycling conveyor line to realize the recycling of the empty pallet.

[0070] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. The feeding and lifting mechanism is characterized by: include: A conveying module, the conveying module comprising a conveying frame and a plurality of guide rollers, the guide rollers being rotatably disposed on the conveying frame, the guide rollers being distributed along a first direction, and a first interval being formed between two adjacent guide rollers; A positioning module, the positioning module comprising a positioning frame, a first positioning plate, a second positioning plate, a plurality of fixed rods and a plurality of sliding rods, the fixed rods and the sliding rods corresponding to each other one by one, the fixed rods and the sliding rods being located in the first interval, the fixed rods being fixedly connected to the positioning frame, the first positioning plate being fixedly connected to one side of the positioning frame, the second positioning plate being fixedly connected to an end of the sliding rod away from the first positioning plate, an accommodating space for entering a pallet being formed between the first positioning plate and the second positioning plate, the sliding rods being slidably arranged on the fixed rods for driving the second positioning plate to approach or move away from the first positioning plate; A lifting module is driven and connected to the positioning frame, and is used to lift the positioning frame and make the supporting surface of the sliding rod higher or lower than the conveying surface of the guide roller.

2. The feeding and lifting paper mechanism according to claim 1, characterized in that: The positioning module further includes a positioning driving member, the second positioning plate is connected to the plurality of sliding rods, and the positioning driving member is drivingly connected to the second positioning plate.

3. The paper loading and lifting mechanism according to claim 2, characterized in that: The fixed rod includes a first rod and a second rod that are fixedly connected to each other, one or both of the first rod and the second rod are fixedly connected to the positioning frame, a rotatable bearing is arranged between the first rod and the second rod, the sliding rod is located between the first rod and the second rod, and the sliding rod is slidably matched with the bearing.

4. The feeding and lifting mechanism according to claim 3, characterized in that: A gap is formed between the upper end of the first rod and the upper end of the second rod, and the sliding rod is located in the gap.

5. The feeding and lifting mechanism according to claim 4, characterized in that: Both ends of the first rod are fixedly connected to the positioning frame, the length of the second rod is shorter than that of the first rod, and one end of the second rod close to the second positioning plate forms an activity space with the inner side of the positioning frame, the first rod has a notch corresponding to the activity space, and the second positioning plate can be movably arranged in the activity space and the notch.

6. The feeding and lifting mechanism according to claim 5, characterized in that: The second positioning plate includes a first connecting part and multiple second connecting parts, the first connecting part is connected to the positioning drive member, the second connecting part is arranged at the lower end of the first connecting part, each of the first connecting parts is correspondingly connected to a sliding rod, and a second interval is formed between two adjacent second connecting parts, and the two ends of the guide roller are located in the second interval.

7. The feeding and lifting mechanism according to claim 6, characterized in that: The width of the second connecting portion is greater than the width of the gap.

8. The feeding and lifting paper mechanism according to claim 1, characterized in that: The lifting module includes a lifting drive and a lifting frame. The conveying module is located in the lifting frame. The lifting drive is drivingly connected to the positioning frame. The positioning frame is provided with guide wheels. The inner wall of the lifting frame is provided with guide rails. The guide wheels are slidably matched with the guide rails.

9. A paper mounting device, characterized in that: It comprises the feeding and paper lifting mechanism described in any one of claims 1 to 8.

10. The paper mounting device according to claim 9, characterized in that: The paper mounting device also includes a loading conveyor line, a recycling conveyor line, a paper mounting machine and a paper pushing mechanism. The paper mounting machine and the recycling conveyor line are distributed along the height direction. The two ends of the conveying module are respectively connected to the loading conveyor line and the recycling conveyor line. The feeding end of the paper mounting machine and the paper pushing mechanism are located on one side of the lifting path of the positioning module. The paper pushing mechanism is used to push the cardboard in the positioning module to the paper mounting machine.

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