Mobile trolley and loading system

Abstract

The application relates to the technical field of automatic guided vehicles, in particular to a mobile trolley and a feeding system. The mobile trolley comprises a mobile chassis, a movable module and a buffer structure; the movable module is installed on the mobile chassis, the movable module is provided with a first storage position and a second storage position which are arranged at intervals along a first direction, the first storage position is used for storing an empty roll, and the second storage position is used for storing a full roll; the first storage position and the second storage position can synchronously move; the buffer structure is installed on the mobile chassis; the buffer structure has a buffer position; wherein the first storage position and the second storage position are arranged at intervals with the buffer position; the movable module can drive the empty roll to transfer positions between the first storage position and the buffer position. The empty roll can be quickly and temporarily stored in the buffer structure, the second storage position is convenient to adjust, and the placing precision of the full roll is improved.

Description

Technical Field

[0001] This application relates to the field of automated guided vehicles (AGVs), and in particular to a mobile trolley and a loading system. Background Technology

[0002] The mobile trolley mainly consists of a chassis and a lifting mechanism mounted on the chassis. The chassis is movable to transport the material coil from one process step to the next. The lifting mechanism includes a main arm and a secondary arm. The main arm is used to pick up full material coils, and the secondary arm is used to pick up empty material coils. Loading and unloading are achieved through the lifting and lowering movement of the lifting mechanism.

[0003] With the development of the industry, the types of mobile trolleys used for material handling have gradually diversified, and the market has placed higher demands on the docking accuracy and efficiency of these trolleys. A full roll consists of a mandrel and material wound around the mandrel, while an empty roll is a mandrel without material wound around it. In some loading processes, the auxiliary arm of the mobile trolley needs to first pick up the empty roll, and then the main arm picks up the full roll. When the mobile trolley picks up the full roll, the main arm needs to align with the end of the mandrel of the full roll. To ensure the placement accuracy of the full roll, the main arm needs to be adjusted according to the current position of the mobile trolley relative to the process machine before picking it up. Since the main arm and auxiliary arm are connected together, and the auxiliary arm already has an empty roll, the main arm cannot make relative position adjustments to improve the placement accuracy of the full roll. Utility Model Content

[0004] Therefore, it is necessary to provide a mobile trolley to improve the placement accuracy of fully loaded coils.

[0005] The mobile trolley includes a mobile chassis, a movable module, and a buffer structure. The movable module is mounted on the mobile chassis and has a first storage position and a second storage position spaced apart along a first direction. The first storage position is used to store empty material rolls, and the second storage position is used to store full material rolls. The first storage position and the second storage position can move synchronously. The buffer structure is mounted on the mobile chassis and has a buffer position. The first storage position and the second storage position are spaced apart from the buffer position. The movable module can drive the empty material rolls to move between the first storage position and the buffer position.

[0006] Understandably, the first storage position can hold empty rolls, and the second storage position can hold full rolls. When an empty roll is already placed in the first storage position, and the second storage position needs to hold a full roll, the empty roll is simply placed on the buffer structure of the moving trolley for quick temporary storage. After the empty roll is placed, the second storage position can be adjusted to align with the end of the mandrel of the full roll, achieving precise receiving of the full roll. Then, the moving module controls the first storage position to receive the empty roll again, so that both full and empty rolls can be carried and transported simultaneously. It is precisely through the buffer structure that the rapid temporary storage and rapid reloading of empty rolls are facilitated. After the empty roll is buffered, the second storage position can be adjusted to improve the accuracy of storing full rolls.

[0007] In one embodiment, along the first direction, the cache position overlaps with the first storage position, and along the second direction, the cache position and the first storage position are spaced apart; both the first storage position and the second storage position can move synchronously along the second direction and rise and fall synchronously along the height direction, and the first storage position and the second storage position have a highest point and a lowest point when rising and falling along the height direction, and the height of the cache position is located between the highest point and the lowest point; the first direction, the second direction and the height direction are set at angles to each other.

[0008] In one embodiment, the mobile vehicle is provided with two active modules, which are spaced apart along the second direction. Along the second direction, two first storage positions are arranged opposite to each other, two second storage positions are arranged opposite to each other, and the cache position is located between the two first storage positions.

[0009] In one embodiment, the cache structure includes a cache support frame and a cache base, the cache base being mounted on top of the cache support frame, and a cache slot being formed on the top of the cache base, the cache slot forming the cache position.

[0010] In one embodiment, the active module includes a moving mechanism and a lifting mechanism. The moving mechanism can drive the first storage position and the second storage position to move synchronously along the second direction; the lifting mechanism can drive the first storage position and the second storage position to move synchronously along the height direction. One of the lifting mechanism and the moving mechanism is provided with the first storage position and the second storage position, and is installed at the output end of the other.

[0011] In one embodiment, the movable module includes a material carrier; the material carrier includes a movable part and a support part connected to the movable part, the movable part being installed at the output end of the lifting mechanism or the output end of the moving mechanism; the support part is angled to the movable part, and the support part is provided with a first storage position and a second storage position.

[0012] In one embodiment, the second storage position is disposed corresponding to the movable part along the height direction, and the first storage position protrudes outward relative to the movable part along the first direction. Along the first direction, the buffer structure is located on one side of the active part.

[0013] In one embodiment, the lifting mechanism includes a lifting support frame, a lifting drive component, and the loading component, wherein the lifting drive component is mounted on the lifting support frame and connected to the loading component; The movable part is slidably connected to the lifting support frame along the height direction; the support part has two storage slots spaced apart along the first direction, one of the storage slots forming the first storage position and the other storage slot forming the second storage position; The lifting mechanism further includes a lifting slide rail and a lifting slider. The lifting slide rail extends along the height direction. One of the movable part and the lifting support frame is provided with the lifting slide rail, and the other is provided with the lifting slider. The lifting slider is slidably connected to the lifting slide rail.

[0014] In one embodiment, the moving mechanism includes a moving support frame, a moving drive component, and a support platform. The moving drive component is mounted on the moving support frame and connected to the support platform. The support platform is slidably connected to the moving support frame along the second direction and is mounted above the moving support frame along the height direction. The support platform forms the output end of the moving mechanism, and the lifting mechanism is mounted on the support platform. The moving mechanism further includes a moving slide rail and a moving slider. The moving slide rail extends along the second direction. One of the support platform and the moving support frame is provided with the moving slide rail, and the other is provided with the moving slider. The moving slider is slidably connected to the moving slide rail.

[0015] This application also provides a feeding system, including a process machine and the aforementioned mobile trolley. The process machine is provided with a storage station for full rolls of material. The mobile trolley can move to the storage station and drive the first storage position and the second storage position to move synchronously. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the mobile vehicle provided in this application; Figure 2 A schematic diagram of the cache structure in the mobile vehicle provided in this application; Figure 3 A structural schematic diagram of the lifting mechanism in the mobile trolley provided in this application, showing one possible orientation. Figure 4 A schematic diagram of the lifting mechanism in the mobile trolley provided in this application from another orientation; Figure 5 A schematic diagram of the moving mechanism in the mobile vehicle provided in this application; Figure 6 This is a structural schematic diagram of the mobile chassis in the mobile vehicle provided in this application; Figure 7 A schematic diagram of the traveling mechanism of the mobile chassis in the mobile trolley provided in this application; Figure 8 A schematic diagram of the feeding system provided in this application.

[0018] Reference numerals: 1000, feeding system; 100, mobile trolley; 200, process machine; 300, empty coil; 400, full coil; 10, mobile chassis; 11, frame; 12, traveling mechanism; 121, traveling drive component; 1211, motor; 1212, reducer; 122, traveling wheel; 123, traveling support; 124, rotating component; 20, movable module; 201, first storage position; 202, second storage position; 21, moving mechanism; 2101, second assembly space; 211, mobile support frame; 21 2. Moving drive component; 213. Support platform; 21301. Assembly port; 214. Moving slide rail; 215. Moving slider; 216. Moving limit component; 22. Lifting mechanism; 221. Lifting support frame; 222. Lifting drive component; 223. Lifting slide rail; 224. Lifting slider; 225. Lifting limit component; 226. Housing; 227. Assembly limit part; 23. Loading component; 231. Moving part; 232. Support part; 30. Buffer structure; 301. Buffer position; 31. Buffer support frame; 32. Buffer base. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0020] It should be noted that when a component is referred to as being "fixed to," "set on," or "properly placed on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0024] Please see Figures 1 to 7This application provides a mobile trolley 100, which includes a mobile chassis 10 and a movable module 20. The movable module 20 is mounted on the mobile chassis 10, and the mobile chassis 10 can drive the movable module 20 to move on a horizontal plane. The movable module 20 has a first storage position 201 and a second storage position 202 spaced apart along a first direction. The first storage position 201 is used to store empty material rolls 300, and the second storage position 202 is used to store full material rolls 400, so as to transport empty material rolls 300 and full material rolls 400 simultaneously. The full material roll 400 is a material roll with multiple layers of material wound around the outside of the mandrel, and the empty material roll 300 is a material roll without material wound around the outside of the mandrel. The first storage position 201 and the second storage position 202 can move synchronously to perform synchronous position adjustment.

[0025] like Figure 8 As shown, this application also provides a feeding system 1000, including a process machine 200 and the aforementioned mobile trolley 100. The process machine 200 is provided with a storage station for a full roll of material 400. The mobile trolley 100 can move to the storage station and drive the first storage position 201 and the second storage position 202 to move synchronously, so as to synchronously adjust the first storage position 201 and the second storage position 202, thereby being able to receive the full roll of material 400 on the process machine 200.

[0026] In related technologies, during the loading process of the mobile trolley 100, when the first storage position 201 already contains an empty roll 300, the second storage position 202 still needs to receive a full roll 400. Since the first and second storage positions 201 move synchronously, the second storage position 202 has difficulty adjusting its positional accuracy. Furthermore, the full roll 400 is relatively heavy and bulky, which can easily lead to unstable load-bearing and rolling problems. To avoid material damage, the placement accuracy of the full roll 400 is usually high. Therefore, the empty roll 300 must first be placed on a nearby shelf before receiving the full roll 400, and then the empty roll 300 must be received again after receiving the full roll 400. This operation is inefficient.

[0027] like Figure 1 and Figure 2As shown, in an optional embodiment, the mobile trolley 100 further includes a buffer structure 30, which is mounted on the mobile chassis 10. The buffer structure 30 has a buffer position 301, wherein a first storage position 201 and a second storage position 202 are respectively spaced apart from the buffer position 301; the movable module 20 can drive the empty material roll 300 to move between the first storage position 201 and the buffer position 301. During operation, the empty material roll 300 on the first storage position 201 is first placed on the buffer position 301. Then, the first storage position 201 and the second storage position 202 can move synchronously to calibrate the second storage position 202, so that the second storage position 202 corresponds to the mandrel end of the full material roll 400. The second storage position 202 can accurately receive the mandrel end of the full material roll 400, thereby improving the placement accuracy of the full material roll 400. The entire process does not require placing the empty material roll 300 on a nearby shelf, reducing the time spent moving back and forth and improving work efficiency.

[0028] The cache structure 30 provides a temporary storage location 301 for empty material rolls 300, enabling rapid storage and re-acceptance of empty material rolls 300. After the empty material roll 300 is detached from the active module 20, the moving trolley 100 can freely control the movement of the second storage location 202, improving the placement accuracy of the full material roll 400.

[0029] In an optional embodiment, along the first direction, the buffer position 301 overlaps with the first storage position 201, and along the second direction, the buffer position 301 and the first storage position 201 are spaced apart. Both the first storage position 201 and the second storage position 202 can move synchronously along the second direction and rise and fall synchronously along the height direction. The first storage position 201 and the second storage position 202 have a highest point and a lowest point when rising and falling along the height direction, and the height of the buffer position 301 is between the highest point and the lowest point. Thus, when the first storage position 201 moves downwards towards the lowest point along the height direction, the empty roll 300 can detach from the first storage position 201 when it reaches the buffer structure 30 and is placed in the buffer position 301, where it is received by the buffer structure 30, achieving rapid temporary storage of the empty roll 300. After the precision adjustment of the second storage position 202 is completed, the first storage position 201 and the second storage position 202 move synchronously upwards along the height direction to receive the full roll 400. As the first storage position 201 moves upward along the height direction, it can re-accept the empty material roll 300, enabling the empty material roll 300 to be quickly re-loaded. The full material roll 400 and the empty material roll 300 are carried and transported together by the moving trolley 100.

[0030] For ease of explanation, the first direction, the second direction, and the height direction are set perpendicular to each other. Here, a rectangular coordinate system is introduced, with the first direction as the x-axis, the second direction as the y-axis, and the height direction as the z-axis for explanation.

[0031] like Figure 1 As shown, in an optional embodiment, the mobile trolley 100 is provided with two movable modules 20, which are spaced apart along a second direction. Along the second direction, two first storage positions 201 are arranged opposite to each other, and two second storage positions 202 are arranged opposite to each other, so that the two first storage positions 201 can jointly receive empty material rolls 300 and the two second storage positions 202 can jointly receive full material rolls 400. A buffer position 301 is located between the two first storage positions 201 so that it can receive empty material rolls 300 when the first storage position 201 descends.

[0032] like Figure 1 and Figure 2 As shown, in a specific embodiment, the buffer structure 30 includes two buffer positions 301 spaced apart along a second direction to enhance the stability and reliability of receiving empty stock rolls 300. In other embodiments, the buffer structure 30 may also include a greater number of buffer positions 301.

[0033] like Figure 2 As shown, in a specific embodiment, the buffer structure 30 includes a buffer support frame 31 and a buffer seat 32. The buffer seat 32 is mounted on top of the buffer support frame 31, and a buffer slot is formed on the top of the buffer seat 32, creating a buffer position 301. The slot wall limits the empty roll 300, thus supporting the empty roll 300. The buffer support frame 31 supports the buffer seat 32, and the buffer support frame 31 and the buffer seat 32 together form a sufficient height to support the empty roll 300.

[0034] like Figure 1 and Figure 2 As shown, in a specific embodiment, the buffer slot gradually widens upwards along the height direction to form a larger opening, facilitating the entry of the empty roll 300 and reducing interference. Simultaneously, inclined slot walls are formed to guide the empty roll 300 into the buffer slot. For example, the cross-section of the buffer slot along the height direction is V-shaped or trapezoidal.

[0035] like Figure 1 As shown, in an optional embodiment, the active module 20 includes a moving mechanism 21, which can drive the first storage position 201 and the second storage position 202 to move synchronously along the second direction, so as to realize the position adjustment along the second direction.

[0036] like Figure 1As shown, in an optional embodiment, the active module 20 includes a lifting mechanism 22, which can drive the first storage position 201 and the second storage position 202 to move synchronously along the height direction, so that the first storage position 201 can receive or detach from the empty material roll 300, and the second storage position 202 can receive or detach from the full material roll 400.

[0037] In an optional embodiment, one of the lifting mechanism 22 and the moving mechanism 21 is provided with a first storage position 201 and a second storage position 202, and is installed at the output end of the other, so that the first storage position 201 and the second storage position 202 can move simultaneously along the second direction and along the height direction.

[0038] In a specific embodiment, the active module 20 includes a material carrier 23. The material carrier 23 includes an active part 231 and a support part 232 connected to the active part 231. The active part 231 is installed at the output end of the lifting mechanism 22 or the output end of the moving mechanism 21. The support part 232 is set at an angle to the active part 231. The support part 232 is provided with a first storage position 201 and a second storage position 202 to support the empty material roll 300 and the full material roll 400.

[0039] In a specific embodiment, along the height direction, the second storage position 202 is correspondingly arranged with the movable part 231, that is, the full roll 400 is located above the movable part 231. Along the first direction, the first storage position 201 protrudes outward relative to the movable part 231, so that a large gap is formed between the first storage position 201 and the second storage position 202, ensuring the full roll 400 can be accommodated and preventing interference between the full roll 400 and the empty roll 300. Along the first direction, the buffer structure 30 is located on one side of the movable part 231, corresponding to the first storage position 201.

[0040] For ease of explanation, this application uses the example of a lifting mechanism 22 having a first storage position 201 and a second storage position 202 for illustration. Figure 3 and Figure 4 As shown, a material carrier 23 is installed at the output end of the lifting mechanism 22. Figure 1 As shown, the lifting mechanism 22 is installed at the output end of the moving mechanism 21, and the moving mechanism 21 can drive the lifting mechanism 22 to move along the second direction.

[0041] like Figure 3 As shown, in a specific embodiment, the lifting mechanism 22 includes a lifting support frame 221 and a lifting drive component 222. The lifting drive component 222 is mounted on the lifting support frame 221, and the lifting support frame 221 supports the lifting drive component 222. The lifting drive component 222 is connected to the loading component 23 to drive the loading component 23 to move along the height direction. For example, the lifting drive component 222 can be a cylinder, a linear motor 1211, etc.

[0042] like Figure 3 and Figure 4 As shown, in a specific embodiment, the movable part 231 is slidably connected to the lifting support frame 221 along the height direction, and the lifting support frame 221 supports the movement of the material carrier 23. The support part 232 has two storage slots spaced apart along a first direction, one storage slot forming a first storage position 201 and the other storage slot forming a second storage position 202, and the slot walls limit the empty material roll 300 and the full material roll 400.

[0043] like Figure 3 and Figure 4 As shown, in a specific embodiment, the storage slot gradually widens upwards along the height direction to form a larger opening, facilitating the entry of the full roll 400 and reducing interference. Simultaneously, inclined slot walls are formed to guide the full roll 400 into the storage slot. For example, the cross-section of the storage slot along the height direction is V-shaped or trapezoidal.

[0044] like Figure 4 As shown, in a specific embodiment, the lifting mechanism 22 further includes a lifting slide rail 223 and a lifting slider 224. The lifting slide rail 223 extends along the height direction. One of the movable part 231 and the lifting support frame 221 is provided with the lifting slide rail 223, and the other is provided with the lifting slider 224. The lifting slider 224 is slidably connected to the lifting slide rail 223. The cooperation of the lifting slide rail 223 and the lifting slider 224 guides the movable part 231 to move stably along the height direction. For example, the movable part 231 is provided with the lifting slider 224, and the lifting support frame 221 is provided with the lifting slide rail 223.

[0045] like Figure 4 As shown, in a specific embodiment, the lifting mechanism 22 further includes a lifting limit member 225. The lifting slide rail 223 is equipped with lifting limit members 225 at both ends along the height direction to limit the lifting range of the loading member 23 and prevent the loading member 23 from leaving the lifting slide rail 223.

[0046] like Figure 1 As shown, in a specific embodiment, the lifting mechanism 22 further includes a housing 226. The housing 226 covers the movable part 231 and surrounds the movable part 231 to form a first assembly space. The lifting support frame 221, the lifting drive component 222, the lifting slide rail 223, and the lifting slider 224 are all located in the first assembly space. The housing 226 provides protection and enhances aesthetics.

[0047] like Figure 5As shown, in a specific embodiment, the moving mechanism 21 includes a moving support frame 211, a moving drive component 212, and a support platform 213. The moving drive component 212 is mounted on the moving support frame 211, and the moving support frame 211 supports the moving drive component 212. The moving drive component 212 is connected to the support platform 213 to drive the support platform 213 to move along a second direction. The support platform 213 is slidably connected to the moving support frame 211 along the second direction and is mounted above the moving support frame 211 along the height direction. The moving support frame 211 supports the movement of the support platform 213. The support platform 213 forms the output end of the moving mechanism 21, and a lifting mechanism 22 is mounted on the support platform 213 to drive the lifting mechanism 22 to move along the second direction.

[0048] like Figure 5 As shown, in a specific embodiment, the moving mechanism 21 further includes a moving slide rail 214 and a moving slider 215. The moving slide rail 214 extends along a second direction. One of the support platform 213 and the moving support frame 211 is provided with the moving slide rail 214, and the other is provided with the moving slider 215. The moving slider 215 is slidably connected to the moving slide rail 214. Through the cooperation of the moving slide rail 214 and the moving slider 215, the movement of the support platform 213 is guided, thereby improving the stability of the movement of the support platform 213.

[0049] like Figure 5 As shown, in a specific embodiment, the moving mechanism 21 further includes a moving limit member 216. The moving slide rail 214 is equipped with moving limit members 216 at both ends along the second direction to limit the moving range of the support platform 213 and prevent the support platform 213 from disengaging from the moving slide rail 214.

[0050] like Figure 5 As shown, in a specific embodiment, the moving mechanism 21 includes two sets of moving slide rails 214 and moving sliders 215. The two sets of moving slide rails 214 and moving sliders 215 are spaced apart along the first direction to improve the support effect on the support platform 213 and enhance the stability of the movement of the support platform 213.

[0051] like Figure 5 As shown, in a specific embodiment, the support platform 213 is provided with an assembly port 21301, which is located between two movable slide rails 214. The support platform 213, the movable slide rails 214, and the movable support frame 211 together form a second assembly space 2101, which avoids the movable drive component 212. Figure 3 and Figure 4 As shown, the lifting mechanism 22 also includes an assembly limiting part 227 connected to the lifting support frame 221, and the assembly limiting part 227 abuts against the support platform 213. Figure 1As shown, the movable part 231 and the lifting support frame 221 can be inserted into the second assembly space 2101 through the assembly port 21301. This arrangement makes full use of the space within the moving mechanism 21 and reduces the space occupied by the lifting mechanism 22 in the height direction.

[0052] like Figure 6 As shown, in a specific embodiment, the mobile chassis 10 includes a frame 11 and a traveling mechanism 12. The traveling mechanism 12 is mounted on the frame 11, and its output end can contact the ground or other flat surfaces. Meanwhile, the movable module 20 and the buffer assembly are both mounted on the frame 11, and the frame 11 supports the movable module 20 and the buffer structure 30.

[0053] like Figure 7 As shown, in a specific embodiment, the walking mechanism 12 includes a walking drive component 121 and a walking wheel 122. The walking drive component 121 is mounted on the frame 11, and the output end of the walking drive component 121 is connected to the walking wheel 122 to drive the walking wheel 122 to rotate. For example, the walking drive component 121 includes a motor 1211 and a reducer 1212, with the reducer 1212 connected between the motor 1211 and the walking wheel 122.

[0054] like Figure 7 As shown, in a specific embodiment, the walking mechanism 12 includes a walking bracket 123, and a walking drive component 121 is mounted on the walking bracket 123. The walking bracket 123 provides reliable support for the power output of the walking drive component 121.

[0055] like Figure 7 As shown, in a specific embodiment, the walking mechanism 12 also includes a rotating component 124, which is mounted on the top of the walking support 123 and rotatably connected to the frame 11, so as to realize the flexible rotation of the walking mechanism 12 relative to the frame 11 and facilitate the change of direction.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A mobile cart, characterized in that, include: Mobile chassis (10); An active module (20) is installed on the mobile chassis (10). The active module (20) has a first storage position (201) and a second storage position (202) spaced apart along a first direction. The first storage position (201) is used to store empty rolls (300), and the second storage position (202) is used to store full rolls (400). The first storage position (201) and the second storage position (202) can move synchronously. A cache structure (30) is installed on the mobile chassis (10); the cache structure (30) has a cache location (301). The first storage location (201) and the second storage location (202) are respectively spaced apart from the cache location (301); the active module (20) can drive the empty roll (300) to move between the first storage location (201) and the cache location (301).

2. The mobile trolley according to claim 1, characterized in that, Along the first direction, the cache position (301) overlaps with the first storage position (201), and along the second direction, the cache position (301) and the first storage position (201) are spaced apart; the first storage position (201) and the second storage position (202) can both move synchronously along the second direction and rise and fall synchronously along the height direction, and the first storage position (201) and the second storage position (202) have a highest point and a lowest point when rising and falling along the height direction, and the height of the cache position (301) is located between the highest point and the lowest point; The first direction, the second direction, and the height direction are set at angles to each other.

3. The mobile trolley according to claim 2, characterized in that, The mobile vehicle (100) is provided with two active modules (20), the two active modules (20) are spaced apart along the second direction, and along the second direction, the two first storage positions (201) are arranged opposite to each other, the two second storage positions (202) are arranged opposite to each other, and the cache position (301) is located between the two first storage positions (201).

4. The mobile trolley according to claim 2, characterized in that, The cache structure (30) includes a cache support frame (31) and a cache seat (32). The cache seat (32) is installed on the top of the cache support frame (31). A cache slot is provided on the top of the cache seat (32), and the cache slot forms the cache position (301).

5. The mobile trolley according to any one of claims 2 to 4, characterized in that, The active module (20) includes a moving mechanism (21) and a lifting mechanism (22). The moving mechanism (21) can drive the first storage position (201) and the second storage position (202) to move synchronously along the second direction. The lifting mechanism (22) can drive the first storage position (201) and the second storage position (202) to move synchronously along the height direction. One of the lifting mechanism (22) and the moving mechanism (21) is provided with the first storage position (201) and the second storage position (202), and is installed at the output end of the other.

6. The mobile trolley according to claim 5, characterized in that, The active module (20) includes a loading component (23); the loading component (23) includes an active part (231) and a support part (232) connected to the active part (231), the active part (231) is installed at the output end of the lifting mechanism (22) or the output end of the moving mechanism (21); the support part (232) is set at an angle to the active part (231), and the support part (232) is provided with a first storage position (201) and a second storage position (202).

7. The mobile trolley according to claim 6, characterized in that, Along the height direction, the second storage position (202) is correspondingly provided with the movable part (231), and along the first direction, the first storage position (201) protrudes outward relative to the movable part (231); Along the first direction, the buffer structure (30) is located on one side of the active part (231).

8. The mobile trolley according to claim 6, characterized in that, The lifting mechanism (22) includes a lifting support frame (221), a lifting drive component (222), and the loading component (23). The lifting drive component (222) is installed on the lifting support frame (221) and connected to the loading component (23). The movable part (231) is slidably connected to the lifting support frame (221) along the height direction; the support part (232) has two storage slots spaced apart along the first direction, one of the storage slots forming the first storage position (201) and the other storage slot forming the second storage position (202). The lifting mechanism (22) further includes a lifting slide rail (223) and a lifting slider (224). The lifting slide rail (223) extends along the height direction. One of the movable part (231) and the lifting support frame (221) is provided with the lifting slide rail (223), and the other is provided with the lifting slider (224). The lifting slider (224) is slidably connected to the lifting slide rail (223).

9. The mobile trolley according to claim 5, characterized in that, The moving mechanism (21) includes a moving support frame (211), a moving drive component (212), and a support platform (213). The moving drive component (212) is installed on the moving support frame (211) and connected to the support platform (213). The support platform (213) is slidably connected to the moving support frame (211) along the second direction and is installed above the moving support frame (211) along the height direction. The support platform (213) forms the output end of the moving mechanism (21), and the lifting mechanism (22) is installed on the support platform (213). The moving mechanism (21) further includes a moving slide rail (214) and a moving slider (215). The moving slide rail (214) extends along the second direction. One of the support platform (213) and the moving support frame (211) is provided with the moving slide rail (214), and the other is provided with the moving slider (215). The moving slider (215) is slidably connected to the moving slide rail (214).

10. A feeding system, characterized in that, include: The process machine (200) is equipped with a storage station for full rolls (400); The mobile trolley (100) according to any one of claims 1 to 9 is capable of moving to the storage station and driving the first storage position (201) and the second storage position (202) to move synchronously.

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