Paper pad loading device and paper pad loading apparatus

Abstract

The application provides a paper pad loading device and a paper pad loading equipment. The device comprises a rack assembly and a carrying assembly. The rack assembly comprises a first sliding block and a lifting mechanism. The carrying assembly comprises a carrying vehicle body, a paper loading platform, a first guide rod group and a second guide rod group. The paper loading platform has a loading state above the lifting mechanism and a carrying state away from the lifting mechanism. The carrying vehicle body is provided with a first sliding rail which cooperates with the first sliding block. The paper loading platform is switched between the two states by sliding the carrying vehicle body. The first guide rod group comprises a plurality of movable guide rods which are movably arranged on the carrying vehicle body and can move within the projection range of the paper loading platform to match the size of different paper pads for paper pad positioning. The second guide rod group comprises a plurality of fixed guide rods which are fixedly arranged on the carrying vehicle body. The sliding installation of the paper loading platform enables the paper loading platform to move up and down. The application is convenient to operate, is not prone to paper jamming and has higher production and packaging efficiency.

Description

Technical Field

[0001] This application relates to the field of finished or semi-finished product packaging technology, and more specifically, to a padding paper feeding device and padding paper feeding equipment. Background Technology

[0002] In various industrial sectors, paper pads are needed during the production of finished or semi-finished products to prevent scratches or contamination, such as in the production of glass substrates or LCD modules. Current paper feeding methods typically involve manually stacking paper piles in a stacking area, and then using an adsorption mechanism to individually pick up and feed each sheet of paper from the stacks. For example, Chinese Patent 201910959031.2 discloses a paper feeding mechanism that uses a suction cup assembly to achieve single-sheet separation and feeding.

[0003] However, the stacking process of paper piles often requires manual handling, which can easily interfere with the adsorption mechanism, resulting in high labor intensity and inconvenience. At the same time, due to the reuse or replacement of products of different specifications on the production line, the padding paper of different products is of different sizes. If the paper is not placed properly by human hands, the adsorption mechanism may not be aligned, making it difficult for the adsorption mechanism to pick up and feed the paper, resulting in failure to feed the padding paper and thus easily causing paper jams, which affects production efficiency. Utility Model Content

[0004] This application provides a paper feeding device and a paper feeding equipment to solve the problems in the prior art where the stacking of paper is inconvenient and the positioning is easily inaccurate due to changes in paper size, resulting in paper jams and affecting production efficiency.

[0005] A paper feeding device according to this application includes: a frame assembly and a conveying assembly;

[0006] The frame assembly includes a first slider and a lifting mechanism;

[0007] The transport assembly includes a transport vehicle body, a paper-carrying platform, a first guide rod group, and a second guide rod group. The paper-carrying platform has a loading state located above the lifting mechanism and a transport state located away from the lifting mechanism. The transport vehicle body is equipped with a first slide rail, which cooperates with a first slider, allowing the paper-carrying platform to switch between the two states by sliding the transport vehicle body. The first guide rod group includes several movable guide rods, which are movably mounted on the transport vehicle body and can move within the projection range of the paper-carrying platform to match the size of different padding papers for padding paper positioning. The second guide rod group includes several fixed guide rods, which are fixedly mounted on the transport vehicle body and slidably mounted on the paper-carrying platform to allow the paper-carrying platform to move up and down.

[0008] In some embodiments, each side of the paper-carrying platform is provided with a guide groove extending inward from the edge, a movable guide rod passes through the guide groove and can move inward or outward relative to the paper-carrying platform along the guide groove, the bottom of the movable guide rod is slidably connected to the transport vehicle body, and a first connecting mechanism is provided between the movable guide rods.

[0009] In some embodiments, the guide slots are arranged in parallel pairs in each side direction of the paper-carrying platform; correspondingly, the movable guide rods are arranged in pairs in the same manner as the guide slots and pass through the paired guide slots; the first connecting mechanism includes a first clamping block and a first connecting plate, the first clamping block is disposed in the middle of the movable guide rod, the first connecting plate is connected to the first clamping block and disposed between the paired movable guide rods, and the length of the first connecting plate is the same as the spacing between the guide slots.

[0010] In some embodiments, a second slider is provided at the bottom of the movable guide rod, a pair of movable guide rods share a second slider, the transport vehicle body is provided with a second slide rail, the second slide rail slides in cooperation with the second slider, and a locking mechanism is provided on the second slider.

[0011] In some embodiments, a lower limit block is provided at the lower middle part of the fixed guide rod, and the paper-carrying platform is located between the lower limit block of the fixed guide rod and the first connecting mechanism of the movable guide rod.

[0012] In some embodiments, a second connecting mechanism is provided between the tops of the fixed guide rods. The second connecting mechanism includes a second clamping block and a second connecting plate. The second connecting plate is connected to the second clamping block and is disposed between two adjacent fixed guide rods to connect the fixed guide rods into a closed loop.

[0013] In some embodiments, the length of the first slide rail is at least twice that of the paper-carrying platform, the bottom of the transport vehicle is provided with auxiliary support wheels, and the side of the transport vehicle is provided with pull-out handrails.

[0014] In some embodiments, a material detection sensor is installed at the bottom of the paper carrier platform or on the surface of the lifting mechanism, within the area enclosed by the second guide rod group. The surface of the paper carrier platform is provided with a detection through hole corresponding to the material detection sensor, and the detection range of the material detection sensor extends upward from the detection through hole.

[0015] In some embodiments, the lifting mechanism includes a lifting arm, a drive motor, and a ball screw. The lifting arm is slidably mounted on the frame assembly, and the output end of the drive motor is connected to the lifting arm through the ball screw to drive the lifting arm to move up and down.

[0016] According to another aspect of this application, a paper feeding device is provided, comprising: an adsorption robotic arm and a paper feeding device, wherein the paper feeding device is the aforementioned paper feeding device.

[0017] According to the technical solution of this application, the paper feeding device includes: a frame assembly and a conveying assembly; the frame assembly includes a first slider and a lifting mechanism; the conveying assembly includes a conveying carriage, a paper-carrying platform, a first guide rod group and a second guide rod group; the paper-carrying platform has a feeding state above the lifting mechanism and a conveying state away from the lifting mechanism; the conveying carriage is provided with a first slide rail, which cooperates with the first slider, and the paper-carrying platform can switch between the two states by sliding the conveying carriage; the first guide rod group includes several movable guide rods, which are movably mounted on the conveying carriage and can move within the projection range of the paper-carrying platform to match the size of different paper for paper positioning; the second guide rod group includes several fixed guide rods, which are fixedly mounted on the conveying carriage and slidably mounted on the paper-carrying platform so that the paper-carrying platform can move up and down. The paper feeding device of this application is equipped with a sliding conveying component, which can be easily slid to the paper platform to a conveying state without interference, facilitating the stacking of paper pads. The conveying component also includes a first guide rod group and a second guide rod group, which can respectively realize the stable guiding and lifting of the paper platform and the precise positioning of the paper stack, thereby improving the accuracy and consistency of paper pad feeding, reducing the probability of paper jams, and improving production efficiency. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This paper shows an isometric structural schematic diagram of the paper feeding device according to an embodiment of this application;

[0021] Figure 2 This is a schematic front view of the paper feeding device according to an embodiment of the present application;

[0022] Figure 3 This is a left-side structural schematic diagram of the pad paper feeding device according to an embodiment of this application;

[0023] Figure 4 This is a top view schematic diagram of the paper feeding device according to an embodiment of this application;

[0024] Figure 5 It shows Figure 1 A partially enlarged structural diagram of the paper feeding device.

[0025] The above figures include the following reference numerals:

[0026] 1. Frame assembly; 11. First slider; 12. Lifting mechanism; 121. Lifting arm; 122. Drive motor; 123. Ball screw; 2. Handling assembly; 21. Handling trolley body; 211. First slide rail; 212. Second slide rail; 213. Locking mechanism; 214. Auxiliary support wheel; 215. Pull-out handrail; 22. Paper carrying platform; 221. Guide groove; 222. Material detection sensor; 23. First guide rod group; 231. Moving guide rod; 232. First clamping block; 233. First connecting plate; 234. Second slider; 24. Second guide rod group; 241. Fixed guide rod; 242. Lower limit block; 243. Second clamping block; 244. Second connecting plate. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] Figures 1 to 5 An embodiment of the paper feeding device of this application is illustrated schematically.

[0033] like Figures 1 to 5 As shown, this application discloses a paper feeding device, which includes a frame assembly 1 and a conveying assembly 2. The frame assembly 1 includes a first slider 11 and a lifting mechanism 12. The conveying assembly 2 includes a conveying carriage 21, a paper-carrying platform 22, a first guide rod group 23, and a second guide rod group 24. The paper-carrying platform 22 has a feeding state located above the lifting mechanism 12 and a conveying state located away from the lifting mechanism 12. The conveying carriage 21 is provided with a first slide rail 211, which cooperates with the first slider 11, and the paper-carrying platform 22 can be switched between the two states by sliding the conveying carriage 21. The first guide rod group 23 includes a plurality of movable guide rods 231, which are movably disposed on the conveying carriage 21 and can move within the projection range of the paper-carrying platform 22 to match the size of different paper for paper positioning. The second guide rod group 24 includes several fixed guide rods 241, which are fixedly mounted on the transport vehicle body 21 and slide onto the paper-carrying platform 22 so that the paper-carrying platform 22 can move up and down.

[0034] Through the above structural design, this embodiment of the application, by setting a sliding conveying component 2, can easily switch the paper-carrying platform 22 between the feeding state and the conveying state, avoiding interference from the lifting mechanism 12 when stacking padding paper. This facilitates the stacking of padding paper manually or automatically, quickly achieving padding paper stacking and reducing preparation time. Moreover, the conveying component 2 is also equipped with a first guide rod group 23 and a second guide rod group 24. The first guide rod group 23 is fixedly set to achieve stable lifting and guiding of the paper-carrying platform 22, while the second guide rod group 24 is movable to achieve size matching and lifting and guiding of the padding paper stack. Thus, by stabilizing the paper-carrying platform 22 and stabilizing the paper stack, the accuracy and consistency of padding paper feeding are improved, avoiding misalignment between the paper stack and the adsorption robotic arm caused by changes in padding paper size, reducing the probability of paper jams, and improving the efficiency and effect of production and packaging.

[0035] In some embodiments of this application, such as Figures 1 to 5 As shown, each side of the paper-carrying platform 22 is provided with a guide groove 221 extending inward from the edge. A movable guide rod 231 passes through the guide groove 221 and can move inward or outward relative to the paper-carrying platform 22 along the guide groove 221. The bottom of the movable guide rod 231 is slidably connected to the transport vehicle body 21, and a first connecting mechanism is provided between the movable guide rods 231. The movable guide rods 231 are slidably mounted on the transport vehicle body 21. By moving inward or outward, they can form paper stacking spaces of different sizes. This allows for the positioning of pads of different sizes directly below the adsorption position of the adsorption robot arm through compression or limiting, ensuring accurate adsorption of pads of different sizes each time they are loaded. This prevents adsorption failure and paper jams caused by the skewed placement of small-sized pads, ensuring effective and efficient pad loading. Furthermore, the first connecting mechanism between the movable guide rods 231 enhances the stability of the movable guide rods in their upright state, reduces pad shaking, and improves the consistency of pad size matching and loading actions.

[0036] In some embodiments of this application, such as Figures 1 to 5 As shown, in each side direction of the paper-carrying platform 22, the guide grooves 221 are arranged in parallel pairs. Correspondingly, the moving guide rods 231 are arranged in pairs in the same manner as the guide grooves 221 and pass through the paired guide grooves 221. The first connecting mechanism includes a first clamping block 232 and a first connecting plate 233. The first clamping block 232 is located in the middle of the moving guide rod 231, and the first connecting plate 233 is connected to the first clamping block 232 and is located between the paired moving guide rods 231. The length of the first connecting plate 233 is the same as the spacing between the guide grooves 221. By arranging the guide grooves 221 and moving guide rods 231 in pairs and strengthening the connection between the paired moving guide rods 231, it can be ensured that each side of the pad paper has two moving guide rods 231 for compression and limiting, accurately guiding the moving guide rods 231 to move linearly, thereby improving the positioning accuracy of each side of the pad paper. The first clamping block 232 is snapped and fixed on the moving guide rod 231, and the first connecting plate 233 is bolted to the first clamping block 232.

[0037] In some embodiments of this application, such as Figure 5As shown, a second slider 234 is provided at the bottom of the moving guide rod 231. A pair of moving guide rods 231 share a single second slider 234. The transport vehicle body 21 is provided with a second slide rail 212, which slides in cooperation with the second slider 234. A locking mechanism 213 is provided on the second slider 234. The pair of moving guide rods 231 share a single second slider 234 at their bottoms, are connected in the middle by a first connecting plate 233, and are guided by parallel guide grooves 221. This results in high consistency of movement, small misalignment, and high positioning accuracy, allowing for accurate matching of changes in the size of the padding paper and improving the success rate of material loading.

[0038] In some embodiments of this application, such as Figure 5 As shown, a lower limit block 242 is provided in the lower middle part of the fixed guide rod 241, and the paper-carrying platform 22 is located between the lower limit block 242 of the fixed guide rod 241 and the first connecting mechanism of the moving guide rod 231. The lower limit block 242 and the first connecting mechanism can form an upper and lower limit structure to prevent the paper-carrying platform 22 from moving too high or too low, so that it can accurately cooperate with the suction and feeding movement of the suction robot arm to realize the feeding of the paper pad. A linear sliding bearing is also provided on the fixed guide rod 241, through which the paper-carrying platform 22 is slidably mounted.

[0039] In some embodiments of this application, such as Figure 5 As shown, a second connecting mechanism is provided between the tops of the fixed guide rods 241. The second connecting mechanism includes a second clamping block 243 and a second connecting plate 244. The second connecting plate 244 is connected to the second clamping block 243 and is disposed between two adjacent fixed guide rods 241, connecting the fixed guide rods 241 into a closed loop. (Reference) Figure 1 As shown, four fixed guide rods 241 are provided, which are respectively inserted at the four top corners of the paper carrying platform 22. The second connecting plate 244 connects the fixed guide rods 241 into a closed ring to enhance the connection effect and reduce the shaking of the guide rods.

[0040] In some embodiments of this application, reference is made to Figure 1 and Figure 2 As shown, the length of the first slide rail 211 is at least twice that of the paper-carrying platform 22, thereby allowing the transport vehicle body 21 to be as far away as possible from the support body of the frame assembly 1. While ensuring the first slide rail 211 cooperates with the first slider 11, it also ensures that the paper-carrying platform 22 is kept away from the lifting mechanism 12, preventing the lifting mechanism 12 from interfering with the placement of the paper stack. The bottom of the transport vehicle body 21 is equipped with auxiliary support wheels 214, which provide auxiliary support and sliding. A pull-out handle 215 is provided on the side of the transport vehicle body 21 to facilitate the operation of the operator by pulling and sliding the transport vehicle body 21.

[0041] In some embodiments of this application, a material detection sensor 222 is installed at the bottom of the paper-carrying platform 22 or on the surface of the lifting mechanism 12, within the area enclosed by the second guide rod group 24, to detect whether there is padding paper above the paper-carrying platform 22 for feeding. Figures 1 to 5 As shown in the embodiment of this application, a material detection sensor 222 is provided on the surface of the lifting mechanism 12. Correspondingly, the table surface of the paper carrier platform 22 is provided with a detection through hole corresponding to the material detection sensor 222. The detection range of the material detection sensor 222 extends upward from the detection through hole, and the lifting mechanism 12 is raised or lowered by detecting the presence or absence of padding paper material.

[0042] In some embodiments of this application, such as Figures 1 to 4 As shown, the lifting mechanism 12 includes a lifting arm 121, a drive motor 122, and a ball screw 123. The lifting arm 121 is slidably mounted on the frame assembly 1. When the conveying assembly 2 slides close to the frame assembly 1, the paper-carrying platform 22 is positioned above the lifting arm 121. The output end of the drive motor 122 is connected to the lifting arm 121 via the ball screw 123, driving the lifting arm 121 to move up and down, thereby raising the paper-carrying platform 22 and providing height adaptation for feeding sheets of padding paper one by one. (Reference) Figures 1 to 4 As shown, the output end of the drive motor 122 is equipped with a drive wheel, which is connected to a belt and driven by the screw of the ball screw 123. The lifting arm 121 is connected to the nut block of the ball screw 123. The frame assembly 1 is also equipped with a positioning sensor for measuring the lifting height of the lifting arm 121, and a drag chain structure for supplying power to the drive motor 122 and transmitting control signals. Understandably, this embodiment also includes a controller for controlling the drive motor 122, etc. The controller can be implemented using a microcontroller chip or by purchasing a ready-made central control unit. Since the lifting arm 121 and each guide rod in this application do not require complex logic control commands, the controller can be implemented through conventional operation by those skilled in the art, and the controller itself is not a mechanical structural improvement point of this application, so it will not be described in detail here. Furthermore, refer to... Figure 3 As shown, the two sides of the lifting arm 121 are also mounted on the frame assembly 1 via linear slide rails, thereby ensuring that the lifting arm 121 moves smoothly and accurately, maintaining a high linearity and high precision lifting effect.

[0043] According to another aspect of this application, a paper feeding device is provided, comprising: an adsorption robotic arm and a paper feeding device, wherein the paper feeding device is the paper feeding device shown in the above embodiments. The paper feeding device of this application achieves rapid preparation of the paper stack through a sliding conveying assembly 2, and achieves lifting and guiding of the paper platform 22 and the paper through a first guide rod group 23 and a second guide rod group 24, which can accurately match the paper size, improve the consistency and accuracy of paper feeding, reduce the probability of paper jams, and improve production effect and efficiency.

[0044] Combination Figures 1 to 5 The following diagram illustrates the working principle of this application:

[0045] Before loading the padding paper, pull the pull handle 215 to slide the transport vehicle 21 away from the frame assembly 1, freeing the paper-carrying platform 22 from the interference of the lifting arm 121 and the suction robot arm. At this time, the paper-carrying platform 22 rests on the lower limit block 242 of the fixed guide rod 241. Twist to open the locking mechanism 213, and adjust each pair of moving guide rods 231 according to the size of the padding paper to be loaded, forming a limiting space for the padding paper stack. Tighten the locking mechanism 213 again to lock the position of the moving guide rods 231. Then, place the padding paper stack manually or automatically. The height of the padding paper stack is determined according to the loading situation, for example, not exceeding the first connecting plate 233 of the moving guide rod 231. After the padding paper stack is prepared, push the pull handle 215 to bring the transport vehicle 21 closer to the frame assembly 1. At this time, the lifting arm 121 is in a low position and passively extends under the paper-carrying platform 22. The material detection sensor 222 detects the presence of material on the paper-carrying platform 22, thus activating the equipment. The suction robotic arm begins to suction and feed paper sheet by sheet. After each suction and retraction of paper by the suction robotic arm, the lifting mechanism 12 raises the paper-carrying platform 22 to the height of one sheet of padding paper, ensuring that the first sheet of padding paper at the highest position is always at the same height for suction and feeding by the suction robotic arm. Because the first guide rod group 23 can smoothly guide the paper-carrying platform 22 to rise and fall, and the second guide rod group 24 can accurately position the padding paper stack directly below the suction robotic arm and guide the padding paper to rise, the padding paper feeding process of this application has high consistency and accuracy, reduces paper jams, and improves production packaging effect and efficiency.

[0046] In summary, the paper feeding device of this application includes: a frame assembly and a conveying assembly; the frame assembly includes a first slider and a lifting mechanism; the conveying assembly includes a conveying carriage, a paper-carrying platform, a first guide rod group, and a second guide rod group; the paper-carrying platform has a feeding state located above the lifting mechanism and a conveying state located away from the lifting mechanism; the conveying carriage is provided with a first slide rail, which cooperates with the first slider, and the paper-carrying platform can switch between the two states by sliding the conveying carriage; the first guide rod group includes several movable guide rods, which are movably mounted on the conveying carriage and can move within the projection range of the paper-carrying platform to match the size of different paper for paper positioning; the second guide rod group includes several fixed guide rods, which are fixedly mounted on the conveying carriage and slidably mounted on the paper-carrying platform so that the paper-carrying platform can move up and down. This embodiment of the application, by setting a sliding conveying component, allows the paper-carrying platform to easily switch between feeding and conveying states, avoiding interference from the lifting mechanism when stacking padding paper. This facilitates manual or automatic padding paper stacking and quickly prepares the padding paper stack for conveying, reducing preparation time. Furthermore, the conveying component includes a first guide rod group and a second guide rod group. The first guide rod group is fixedly set to ensure stable lifting and guiding of the paper-carrying platform, while the second guide rod group is movable to achieve size matching and lifting guidance of the padding paper stack. This improves the accuracy and consistency of padding paper feeding by stabilizing both the paper-carrying platform and the paper stack, preventing misalignment between the paper stack and the suction robotic arm caused by changes in padding paper size, reducing the probability of paper jams, and improving production packaging efficiency and effectiveness.

[0047] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A paper feeding device, characterized in that, include: Rack assembly (1) and handling assembly (2); The frame assembly (1) includes a first slider (11) and a lifting mechanism (12); The transport assembly (2) includes a transport vehicle body (21), a paper-carrying platform (22), a first guide rod group (23), and a second guide rod group (24). The paper-carrying platform (22) has a loading state located above the lifting mechanism (12) and a transport state located away from the lifting mechanism (12). The transport vehicle body (21) is provided with a first slide rail (211), which cooperates with the first slider (11). By sliding the transport vehicle body (21), the paper-carrying platform (22) can switch between the two states. The first guide rod group (23) includes several movable guide rods (231), which are movably mounted on the transport vehicle body (21) and can move within the projection range of the paper-carrying platform (22) to match the size of different padding paper for padding paper positioning; the second guide rod group (24) includes several fixed guide rods (241), which are fixedly mounted on the transport vehicle body (21) and slidably mounted on the paper-carrying platform (22) so that the paper-carrying platform (22) can move up and down.

2. The paper feeding device according to claim 1, characterized in that, Each side of the paper-carrying platform (22) is provided with a guide groove (221) extending inward from the edge. The movable guide rod (231) passes through the guide groove (221) and can move inward or outward relative to the paper-carrying platform (22) along the guide groove (221). The bottom of the movable guide rod (231) is slidably connected to the transport vehicle body (21). A first connecting mechanism is provided between the movable guide rods (231).

3. The paper feeding device according to claim 2, characterized in that, On each side of the paper-carrying platform (22), the guide grooves (221) are arranged in parallel pairs; correspondingly, the moving guide rods (231) are arranged in pairs in the same manner as the guide grooves (221) and pass through the pairs of guide grooves (221); the first connecting mechanism includes a first clamping block (232) and a first connecting plate (233), the first clamping block (232) is disposed in the middle of the moving guide rod (231), the first connecting plate (233) is connected to the first clamping block (232) and disposed between the pairs of moving guide rods (231), and the length of the first connecting plate (233) is the same as the spacing of the guide grooves (221).

4. The paper feeding device according to claim 3, characterized in that, The bottom of the movable guide rod (231) is provided with a second slider (234), and the pair of movable guide rods (231) share a second slider (234). The transport vehicle body (21) is provided with a second slide rail (212), which slides in cooperation with the second slider (234). The second slider (234) is provided with a locking mechanism (213).

5. The paper feeding device according to claim 2, characterized in that, A lower limit block (242) is provided in the lower middle part of the fixed guide rod (241), and the paper platform (22) is located between the lower limit block (242) of the fixed guide rod (241) and the first connecting mechanism of the movable guide rod (231).

6. The paper feeding device according to claim 5, characterized in that, A second connecting mechanism is provided between the tops of the fixed guide rods (241). The second connecting mechanism includes a second clamping block (243) and a second connecting plate (244). The second connecting plate (244) is connected to the second clamping block (243) and is provided between two adjacent fixed guide rods (241) to connect the fixed guide rods (241) into a closed ring.

7. The paper feeding device according to claim 1, characterized in that, The length of the first slide rail (211) is at least twice that of the paper-carrying platform (22), the bottom of the transport vehicle body (21) is provided with auxiliary support wheels (214), and the side of the transport vehicle body (21) is provided with a pull-out handrail (215).

8. The paper feeding device according to claim 1, characterized in that, A material detection sensor (222) is installed at the bottom of the paper platform (22) or on the surface of the lifting mechanism (12), within the area enclosed by the second guide rod group (24). The table surface of the paper platform (22) is provided with a detection through hole corresponding to the material detection sensor (222), and the detection range of the material detection sensor (222) extends upward from the detection through hole.

9. The paper feeding device according to claim 1, characterized in that, The lifting mechanism (12) includes a lifting arm (121), a drive motor (122), and a ball screw (123). The lifting arm (121) is slidably mounted on the frame assembly (1). The output end of the drive motor (122) is connected to the lifting arm (121) through the ball screw (123) to drive the lifting arm (121) to move up and down.

10. A paper feeding device, characterized in that, include: An adsorption robotic arm and a paper feeding device, wherein the paper feeding device is the paper feeding device according to any one of claims 1 to 9.

Images