Felt stocking system and control method for felt stocking system

Abstract

This invention provides a felt preparation system and a control method for the felt preparation system, relating to the field of vehicle parts transportation technology. The felt preparation system includes: a transport vehicle, which includes a chassis and a storage rack connected to the chassis and located on top of the chassis. The storage rack has a storage space, and a set of wheels is provided at the bottom of the chassis. The chassis is telescopically oriented along the height direction. A material bin is located within the storage space and is used to hold materials. By applying the technical solution of this application, the height of the entire storage rack can be flexibly adjusted according to the operator's standing working height by making the chassis telescopically oriented along the height direction. This ensures that the material bin is within an ergonomic working height range, solving the problem of discomfort and efficiency loss caused by the mismatch between the height of the cart and human physiological characteristics, and improving work comfort and operational safety.

Description

Technical Field

[0001] This invention relates to the field of vehicle parts transportation technology, and more specifically, to a felt preparation system and a control method for the felt preparation system. Background Technology

[0002] In automotive parts logistics, felt materials are typically handled using specialized trolleys with storage bins for transporting and retrieving parts. In existing technology, the trolley's shelf is designed with a large-angle tilt to facilitate access to parts from the top of the storage bin. The shelf is approximately 60 cm off the ground, and the storage bin opening is located at the top, requiring the operator to bend over and reach. Furthermore, because the trolley handle lowers with the shelf, the operator must maintain a large-angle bent-over posture for extended periods while pushing the trolley. This posture is not ergonomic and can easily lead to lower back fatigue and strain over time, affecting both work efficiency and operator comfort.

[0003] In the aforementioned technology, because the design of the top opening of the hopper and the low-mounted trolley handle are intertwined, the operator needs to bend over when picking up the parts and also needs to continue bending over when pushing the trolley, making it impossible to achieve a continuous and comfortable working state where parts can be picked up upright and pushed upright.

[0004] There is currently no effective solution to the aforementioned technical problems. Summary of the Invention

[0005] The main objective of this invention is to provide a felt preparation system and a control method for the felt preparation system, so as to solve the technical problem of poor operational adaptability and low operating efficiency of the existing felt preparation system.

[0006] To achieve the above objectives, according to one aspect of the present invention, a felt preparation system is provided, comprising: a transport vehicle including a chassis and a shelf, the shelf being connected to the chassis and located on top of the chassis, the shelf having a storage space, a set of wheels being provided at the bottom of the chassis, and the chassis being extendable and retractable along the height direction; and a material bin located within the storage space for holding materials.

[0007] Furthermore, the base frame includes: a first frame connected to the wheel assembly; a column, one end of which is connected to the first frame and is extendable along the height direction; a second frame, the other end of which is connected to one end of the second frame and the other end of the second frame is connected to the shelf; and a handrail connected to the second frame.

[0008] Furthermore, the column is a pneumatic support rod.

[0009] Furthermore, the column includes: a first sleeve, one end of which is connected to a first frame; a second sleeve, which is connected to the first sleeve and is movably disposed relative to the first sleeve along the height direction; a driving unit, the output end of which is connected to the second sleeve to drive the second sleeve to move relative to the first sleeve along the height direction; and a limiting member, which has a limiting position for fixing the second sleeve to the first sleeve and a releasing position for releasing the second sleeve.

[0010] Furthermore, a gear is installed inside the first sleeve, and a rack that meshes with the gear is installed inside the second sleeve. The output end of the drive unit is connected to the gear, and the drive unit drives the gear to rotate so that the rack drives the second sleeve to move relative to the first sleeve in the height direction.

[0011] Furthermore, a motor is installed inside the first sleeve, and the output end of the motor is connected to the threaded rod. An internal thread that mates with the threaded rod is installed inside the second sleeve. The drive unit drives the threaded rod to rotate, so that the second sleeve moves relative to the first sleeve in the height direction.

[0012] Furthermore, the shelf includes: a shelf frame connected to a second frame; a shelf connected to the shelf frame, the shelf frame being arranged around the shelf, the shelf and the shelf frame enclosing a storage space, the shelf having an anti-slip layer; wherein, the distance between the shelf and the plane containing the top of the second frame is varied along the direction away from the handrail.

[0013] Furthermore, the top of the hopper has a first opening, and / or the side wall of the hopper has a second opening.

[0014] Furthermore, the base frame also includes: a displacement sensor, which is mounted on the shelf and is used to measure the height of the shelf; a display screen, which is used to display the height of the shelf; and a controller, which is electrically connected to the drive unit, the displacement sensor, and the display screen.

[0015] According to another aspect of the present invention, a control method for a felt preparation system is provided for controlling the aforementioned felt preparation system, comprising the following steps: acquiring the height information of the shelf and the height information of the operator; determining the target height of the shelf based on the height information of the shelf and the height information of the operator; and controlling the base frame to perform target operations based on the target height of the shelf, wherein the target operations include: raising operations and lowering operations.

[0016] The felt preparation system using the technical solution of this invention includes a transport vehicle and a material box. The transport vehicle consists of a base frame and a shelf. The shelf is fixed to the top of the base frame and forms a storage space for accommodating the material box. The bottom of the base frame is equipped with wheels to enable mobility. The base frame is telescopically adjustable along the height direction, allowing the height of the entire shelf to be flexibly adjusted according to the operator's standing working height. This ensures that the material box is within an ergonomic working height range, solving the problem of discomfort and efficiency loss caused by the mismatch between the height of the cart and human physiological characteristics, and improving work comfort and operational safety. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A schematic diagram of an embodiment of a prior art felt stock preparation system is shown;

[0019] Figure 2 A schematic diagram of the structure of a first embodiment of the felt stock preparation system according to the present invention is shown;

[0020] Figure 3 A schematic diagram of a second embodiment of the felt stock preparation system according to the present invention is shown;

[0021] Figure 4 A schematic diagram of a third embodiment of the felt stock preparation system according to the present invention is shown;

[0022] Figure 5 A schematic diagram of a fourth embodiment of the felt stock preparation system according to the present invention is shown.

[0023] The above figures include the following reference numerals:

[0024] 10. Transport vehicle;

[0025] 11. Base frame;

[0026] 111. First Framework;

[0027] 112. Second Frame;

[0028] 113. Column;

[0029] 1131. First casing;

[0030] 1132. Second casing;

[0031] 114. Handrails;

[0032] 12. Shelves; 120. Storage space;

[0033] 121. Storage frame;

[0034] 122. Shelf;

[0035] 13. Wheel set; 131. Casters;

[0036] 20. Material bin; 21. First opening; 22. Second opening. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] 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.

[0039] 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 terms can be used interchangeably 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 a 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.

[0040] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0041] Combination Figure 1As shown, in traditional felt storage trolleys, the fixed and generally low height of the transport vehicle 10, along with the design of the top opening of the material box 20 being tied to the transport vehicle 10, forces operators to bend over when retrieving items and continue bending over while pushing the trolley. This prevents a continuous and comfortable working state where items can be retrieved and pushed upright, leading to fatigue accumulation and decreased work efficiency. While this structure fulfills the basic function of material storage and retrieval, it neglects user comfort, significantly reducing operational safety and operator satisfaction in high-frequency, long-term work scenarios. Currently, there is an urgent need for a new felt storage system structure that can ensure convenient item retrieval while allowing for an upright pushing posture.

[0042] Combination Figures 2 to 5 As shown, according to a specific embodiment of this application, a felt stock preparation system is provided.

[0043] Specifically, the felt preparation system includes a transport vehicle 10 and a material bin 20. The transport vehicle 10 includes a base frame 11 and a shelf 12. The shelf 12 is connected to the base frame 11 and is located on top of the base frame 11. The shelf 12 has a storage space 120. The bottom of the base frame 11 is equipped with a wheel set 13. The base frame 11 is telescopically oriented along the height direction. The material bin 20 is located in the storage space 120 and is used to hold materials.

[0044] Applying the technical solution of this embodiment, the felt preparation system includes a transport vehicle 10, which consists of a base frame 11 and a shelf 12. The shelf 12 is fixed to the top of the base frame 11 and has a storage space 120 for accommodating materials. The bottom of the base frame 11 is equipped with a wheel set 13, and the base frame 11 is extendable and retractable along the height direction. Through the extendable structure of the base frame 11, the operator can actively adjust the overall height of the transport vehicle 10 according to their ergonomic height requirements when standing, so that the shelf 12 and the material box 20 located in the storage space 120 are raised to a suitable working height (such as 50cm, 60cm, 70cm, 80cm, 90cm, 100cm, 110cm, 120cm, 130cm, 140cm, 150cm, etc.), thereby avoiding the operator being forced to bend over when pushing the transport vehicle 10 because the material position is too low. This structure directly eliminates physical exhaustion and occupational health risks caused by unsuitable working height, achieves ergonomic optimization of material transportation and handling processes, and solves the technical problems in existing technologies where operators need to bend over and the working height is not ergonomic when pushing felt preparation carts.

[0045] Furthermore, the base frame 11 includes a first frame 111, a second frame 112, a column 113, and a handrail 114. The first frame 111 is connected to the wheel assembly 13. One end of the column 113 is connected to the first frame 111, and the column 113 is telescopically oriented along the height direction. The other end of the column 113 is connected to one end of the second frame 112, and the other end of the second frame 112 is connected to the shelf 12. The handrail 114 is connected to the second frame 112.

[0046] In this embodiment, the base frame 11 is connected to the wheel assembly 13 via the first frame 111, forming the supporting foundation of the transport vehicle. One end of the upright column 113 is fixedly connected to the first frame 111, and the other end is connected to the second frame 112. The upright column 113 is extendable along the height direction, allowing the second frame 112 and the connected shelf 12 and handrail 114 to rise and fall synchronously. When the upright column 113 extends, the second frame 112 drives the handrail 114 to rise to a suitable height for upright pushing by the human body, without the operator needing to... The vehicle can be pushed stably by bending over. When the upright 113 is shortened, the handrail 114 can be lowered to adapt to different loading or storage scenarios. The height of the handrail 114 can be precisely adjusted through the telescopic structure of the upright 113, which directly solves the problem of bending over during the push due to the handrail being too low. This improves the comfort of human-machine interaction and work efficiency. At the same time, since the handrail 114 is directly connected to the second frame 112, its height change is synchronized with the shelf 12, ensuring the stability of the overall structure of the transport vehicle and the consistency of force transmission.

[0047] Combination Figure 2 and Figure 3 As shown, in one embodiment of this application, the wheel assembly 13 includes multiple casters 131. The multiple casters 131 are located at the lower end of the first frame 111 and are arranged circumferentially along the first frame 111, which significantly improves the maneuverability and steering flexibility of the trolley in narrow, obstacle-ridden logistics operation environments, allowing the operator to achieve smooth steering in any direction with minimal adjustment force, effectively reducing path correction and physical exertion during the pushing process. One end of the handle 114 is connected to the second frame 112. Part of the handle 114 extends horizontally, and the other part extends vertically downward, providing the operator with a grip transition area that conforms to the natural downward trajectory of the human arm. The vertically downward extension not only effectively avoids the bottom space of the shelf, preventing interference between the hand and the material box or the vehicle body, but also provides a wider grip adaptation range for operators of different heights, so that the trolley can maintain a stable and comfortable pushing angle in different height adjustment states.

[0048] In an optional embodiment of this example, the column 113 is a pneumatic support rod. The column 113 employs a pneumatic support rod structure, and the handle 114 controls the inflation and deflation of the pneumatic support rod, enabling stepless height adjustment via internal gas pressure and automatic locking at any set position. When the operator adjusts the height of the shelf 12 according to ergonomic needs, only a light press on the handle 114 is required to raise or lower it. The pneumatic support rod, with its damping characteristics and self-locking mechanism, ensures the stability of the base frame 11 after adjustment, eliminating the need for additional locking devices. This completely avoids the situation where the operator needs to bend over to pick up or put down the material box 20 due to excessively low working height, significantly improving comfort and safety during pushing and operation. Simultaneously, the elastic recovery characteristics of the pneumatic support rod effectively buffer the vertical impact caused by uneven ground during the movement of the transport vehicle 10, extending the structural service life and achieving more efficient, labor-saving, and reliable working height adjustment.

[0049] Furthermore, the column 113 includes a first sleeve 1131, a second sleeve 1132, a driving part, and a limiting member. One end of the first sleeve 1131 is connected to the first frame 111. The second sleeve 1132 is connected to the first sleeve 1131 and is movably disposed relative to the first sleeve 1131 along the height direction. The output end of the driving part is connected to the second sleeve 1132 to drive the second sleeve 1132 to move relative to the first sleeve 1131 along the height direction. The limiting member has a limiting position for fixing the second sleeve 1132 to the first sleeve 1131 and a releasing position for releasing the second sleeve 1132.

[0050] Combination Figure 3 and Figure 4As shown, in this embodiment, the column 113 consists of a first sleeve 1131, a second sleeve 1132, and a drive unit. One end of the first sleeve 1131 is fixedly connected to the first frame 111. The second sleeve 1132 is sleeved outside the first sleeve 1131 and can slide relative to it in the height direction. The output end of the drive unit is directly connected to the second sleeve 1132 (the drive unit can be manual or electric). By applying external force, the second sleeve 1132 is driven to extend and retract within the first sleeve 1131, thereby achieving stepless adjustment of the overall height of the base frame 11. When adjusted to a suitable working height, the limiting member can cut... When the limit position is switched, the second sleeve 1132 is mechanically locked to the first sleeve 1131, so that the shelf 12 remains stable during the pushing or picking up and putting down of materials, and avoids height deviation caused by vibration or external force. When the height needs to be adjusted again, the limit member switches to the release position, releasing the constraint on the second sleeve 1132, so that the drive unit can smoothly drive it up and down. This structure realizes the controllability of height adjustment and the reliability of locking, and completely solves the problem of repeated adjustment of working height and unstable operation caused by the lack of a stable locking mechanism in traditional trolleys, which significantly improves ergonomic adaptability and work efficiency.

[0051] Furthermore, a gear is provided inside the first sleeve 1131, and a rack that meshes with the gear is provided inside the second sleeve 1132. The output end of the drive unit is connected to the gear, and the drive unit drives the gear to rotate so that the rack drives the second sleeve 1132 to move relative to the first sleeve 1131 in the height direction.

[0052] In this embodiment, a gear is installed inside the first sleeve 1131, and a rack meshing with the gear is installed inside the second sleeve 1132. The output end of the drive unit is connected to the gear. The drive unit can be a rocker arm or a motor. When the drive unit (manually rocking the rocker arm or driven by a motor) drives the gear to rotate, the gear drives the second sleeve 1132 to move smoothly relative to the first sleeve 1131 in the height direction through the meshing transmission with the rack, thereby realizing the active and continuous adjustment of the overall height of the column. This gear and rack transmission structure has the advantages of high transmission accuracy, low running resistance, strong load-bearing capacity and not easy jamming. It allows the operator to easily complete the precise adjustment of the shelf height by simply using the drive unit, without bending over to apply force or manually locking, which significantly improves work efficiency and ergonomic comfort. At the same time, the meshing relationship between the gear and the rack ensures the stability during the height adjustment process, avoiding displacement back due to external impact or vibration, so that the second sleeve 1132 can be reliably maintained in any position. Combined with the locking function of the limit component, it realizes the dual guarantee of precise control and dynamic stability of height adjustment.

[0053] Furthermore, a motor is installed inside the first sleeve 1131, and the output end of the motor is connected to the threaded rod. An internal thread that mates with the threaded rod is installed inside the second sleeve 1132. The drive unit drives the threaded rod to rotate so that the second sleeve 1132 moves relative to the first sleeve 1131 in the height direction.

[0054] In this embodiment, a motor is installed inside the first sleeve 1131, and the output end of the motor is connected to the threaded rod. The inner wall of the second sleeve 1132 is provided with an internal thread that matches the threaded rod. When the motor is energized and drives the threaded rod to rotate, the helical engagement between the threaded rod and the internal thread generates an axial thrust, thereby driving the second sleeve 1132 to rise and fall smoothly relative to the first sleeve 1131 in the height direction. This achieves automatic adjustment of the height of the shelf 12, allowing the shelf 12 to be accurately positioned at an ergonomic working height without the need for manual external force. This effectively eliminates the burden of bending over for the operator. At the same time, the self-locking characteristic of the threaded transmission ensures stable and reliable height locking, avoiding accidental displacement caused by vibration or external force, and significantly improving operational safety and work efficiency.

[0055] Furthermore, the shelf 12 includes a shelf frame 121 and a shelf panel 122. The shelf frame 121 is connected to the second frame 112. The shelf panel 122 is connected to the shelf frame 121. The shelf frame 121 is arranged around the shelf panel 122. The shelf panel 122 and the shelf frame 121 enclose a storage space 120. The shelf panel 122 has an anti-slip layer. The distance between the shelf panel 122 and the plane containing the top of the second frame 112 varies in the direction away from the handrail 114.

[0056] Combination Figure 3 and Figure 4 As shown, in this embodiment, the shelf 12 is composed of a shelf frame 121 and a shelf panel 122. The shelf frame 121 is arranged around the shelf panel 122 and connected to the second frame 112. The shelf panel 122 and the shelf frame 121 enclose a storage space 120 for accommodating the material box 20. The surface of the shelf panel 122 is provided with an anti-slip layer to effectively suppress the sliding of the material box 20 due to vibration or tilting during transportation, thereby improving the stability of material storage. At the same time, the shelf panel 122 and the top plane of the second frame 112 are connected. The distance gradually increases in the direction away from the handrail 114, so that the storage board 122 forms a sloping structure that slopes from the end of the handrail 114 to the far end. This sloping design allows the material box 20 located in the storage space 120 to slide naturally towards the handrail 114 and abut against it under the action of gravity. The operator can easily pick up and put down the material box 20 at the front without bending over while standing. Moreover, the anti-slip layer and the sloping surface work together to prevent the material box 20 from sliding excessively and to ensure the controllability and safety of the picking and putting process, which significantly improves work efficiency and ergonomic adaptability.

[0057] Furthermore, in this embodiment, the top of the material box 20 has a first opening 21, and the side wall of the material box 20 has a second opening 22.

[0058] Combination Figure 2 As shown, the top of the material bin 20 is provided with a first opening 21, combined with Figures 4 to 5 As shown, the side wall of the material box 20 is provided with a second opening 22. When the material box 20 is contained within the storage space 120 formed by the shelf 12, the second opening 22 on its side wall can be aligned with the natural hand height of the operator when standing, so that the operator can directly take materials from the side without bending over, which significantly improves the operator's working posture. At the same time, the first opening 21 at the top is still reserved for loading or assisting in taking materials, realizing the flexibility of dual-path access. By stably limiting the material box 20 through the shelf 12, it is ensured that the second opening 22 on the side wall is always in an operable position during transportation and operation, thereby effectively solving the problem of work fatigue and ergonomic discomfort caused by only being able to take materials from the top, and improving the efficiency of stock preparation and the comfort of operation.

[0059] Furthermore, the base frame 11 also includes a displacement sensor, a display screen, and a controller. The displacement sensor is mounted on the shelf 12 and is used to measure the height of the shelf 12. The display screen is used to display the height of the shelf 12. The controller is electrically connected to the drive unit, electrically connected to the displacement sensor, and electrically connected to the display screen.

[0060] In this embodiment, a displacement sensor is installed on the shelf 12 to measure the height change of the shelf 12 relative to the base frame 11 in real time and transmit the height signal to the controller. After receiving the signal, the controller drives the display screen to display the current actual height of the shelf 12, so that the operator can accurately adjust the extension range of the base frame 11 according to the value on the display screen, thereby adjusting the shelf 12 to a suitable working height that conforms to ergonomics. This avoids the problem of bending over due to unknown height in traditional operations, realizes the visualization and precision of height adjustment, and improves the comfort and efficiency of operation.

[0061] According to another specific embodiment of this application, a control method for a felt stock preparation system is also provided, for controlling the aforementioned felt stock preparation system, comprising the following steps:

[0062] Step S102: Obtain the height information of the shelf and the height information of the operator;

[0063] Step S104: Determine the target height of the shelf based on the height information of the shelf and the height information of the operator;

[0064] Step S106: Based on the target height of the shelf, control the base frame to perform the target operation, which includes: raising operation and lowering operation.

[0065] In step S102, the system actively acquires the height information of the shelf and the height information of the operator, realizing real-time perception of the working environment and the individual characteristics of the operator. This breaks through the design limitations of traditional fixed trolleys and lays a data foundation for subsequent personalized adjustments.

[0066] In step S104, the system intelligently calculates the target value of the optimal working height that conforms to the ergonomics of the operator based on the acquired height and current height data. This process transforms the abstract human factors engineering standard (such as elbow height ±10cm) into executable control logic, so that the height setting no longer depends on experience judgment or manual trial and error, but is scientifically decided by the algorithm, ensuring that each operator can perform the picking operation in the most comfortable and effortless posture, significantly improving the individual adaptability of the operation and the level of health protection.

[0067] In step S106, the system automatically drives the base frame lifting mechanism to make precise adjustments based on the calculated target height. This not only eliminates the physical burden and time waste of manual adjustment by the operator, but also ensures the accuracy and consistency of height adjustment through closed-loop control, thereby enhancing the sustainability of the operation and operator satisfaction.

[0068] Based on steps S102-S106, a complete intelligent control closed loop of perception-decision-execution is formed, which upgrades traditional logistics tools into intelligent operation units with autonomous adaptability, achieving dual comfort improvements such as no need to bend over when pushing the cart and no need to bend over when working, enhancing the system's adaptability to individual differences of personnel, and improving work efficiency and consistency between human and machine ergonomics.

[0069] The process of the technical solution in this application is described below:

[0070] The operator obtains the height information of the shelf 12 through the controller based on their own height information, and determines the target height of the shelf based on this height information and their own height information. The controller controls the drive unit of the base frame 11 to move the second sleeve 1132 relative to the first sleeve 1131 according to the target height, thereby adjusting the height of the shelf 12 until the height of the shelf 12 is consistent with the target height. At this time, the display screen shows the current actual height of the shelf 12. The operator places the material box 20 in the storage space 120 formed by the shelf 12, with the second opening 22 on the side wall of the material box 20 aligned with the operator's natural hand height when standing. The operator pushes the transport vehicle, and the handrail 114 is connected to the second frame 112 and is raised synchronously with the shelf 12 to a suitable height. The operator can push the transport vehicle stably without bending over.

[0071] During operation, the anti-slip layer on the surface of the shelf 122 prevents the material box 20 from sliding. The distance between the shelf 122 and the top plane of the second frame 112 gradually increases in the direction away from the handrail 114, so that the material box 20 naturally slides to the end near the handrail under the action of gravity and is stably supported. The operator can directly take the material from the second opening 22 on the side wall of the material box 20 while standing.

[0072] When the height needs to be adjusted, the operator triggers the drive unit through the controller. The limiter releases the constraint on the second sleeve 1132 in the release position. The drive unit drives the gear to rotate or the threaded rod to rotate, so that the second sleeve 1132 moves relative to the first sleeve 1131 in the height direction. After the adjustment is completed, the limiter switches to the limit position to lock the second sleeve 1132, ensuring that the shelf 12 remains stable during the pushing or picking process. When it is necessary to replace or replenish materials, the operator can still assist in loading materials through the first opening on the top of the material box 20 to achieve dual-path storage and retrieval.

[0073] The following technical effects are achieved by using the technology described in the above embodiments:

[0074] This application features an adjustable-height base frame 11, allowing the handrail 114 and shelf 12 to be adjusted in height. This ensures that the hands are naturally positioned within the chest and abdomen height range when pushing the device, allowing the operator to maintain an upright posture throughout the process. This completely eliminates lumbar pressure and muscle fatigue caused by prolonged bending, significantly improving pushing comfort and operational safety.

[0075] In addition to the top opening (first opening 21), the felt material box 20 is equipped with a side opening (second opening 22). When the material box 20 is placed on a shelf 12 that is at a high height (e.g., more than 100cm), the opening plane is exactly at the height of the operator's natural standing reach. The operator can easily pick up and put down parts without bending over, standing on tiptoe or leaning out, which greatly reduces the physiological load and operation time of picking up parts.

[0076] This application uses a control method to collect the operator's height and the height of the shelf in real time, intelligently calculates the optimal working height, and automatically controls the base frame 11 to drive the shelf 12 to rise and fall, realizing personalized adaptation for each person's height. This allows operators of different heights to obtain the best human-machine efficiency and solves the problem of inconsistent comfort caused by the one-size-fits-all approach of traditional equipment.

[0077] This application not only solves the problem of unsuitability in a single link, but also constructs a brand-new human-machine collaborative paradigm for felt preparation through the collaborative innovation of structural design and intelligent control, which significantly improves operator satisfaction, reduces the risk of occupational injury, and improves work consistency and efficiency.

[0078] 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.

[0079] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0080] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0081] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A felt preparation system, characterized in that, include: The transport vehicle (10) includes a base frame (11) and a shelf (12), the shelf (12) is connected to the base frame (11), the shelf (12) is located on the top of the base frame (11), the shelf (12) has a storage space (120), the bottom of the base frame (11) is provided with a wheel set (13), and the base frame (11) is telescopically oriented along the height direction; Material bin (20), which is located in the storage space (120), is used to hold materials.

2. The felt preparation system according to claim 1, characterized in that, The base frame (11) includes: The first frame (111) is connected to the wheel assembly (13); A column (113) is provided, one end of which is connected to the first frame (111), and the column (113) is extendable and retractable along the height direction; The second frame (112) has one end of the column (113) connected to one end of the second frame (112), and the other end of the second frame (112) is connected to the shelf (12). Handrail (114), which is connected to the second frame (112).

3. The felt stock preparation system according to claim 2, characterized in that, The column (113) is a pneumatic support rod.

4. The felt preparation system according to claim 2, characterized in that, The column (113) includes: The first sleeve (1131) has one end connected to the first frame (111); The second sleeve (1132) is connected to the first sleeve (1131), and the second sleeve (1132) is movably disposed relative to the first sleeve (1131) along the height direction; A drive unit, the output end of which is connected to the second sleeve (1132) to drive the second sleeve (1132) to move relative to the first sleeve (1131) in the height direction; The limiting member has a limiting position for fixing the second sleeve (1132) to the first sleeve (1131) and a releasing position for releasing the second sleeve (1132).

5. The felt preparation system according to claim 4, characterized in that, A gear is provided inside the first sleeve (1131), and a rack that meshes with the gear is provided inside the second sleeve (1132). The output end of the drive unit is connected to the gear, and the drive unit drives the gear to rotate so that the rack drives the second sleeve (1132) to move relative to the first sleeve (1131) in the height direction.

6. The felt preparation system according to claim 4, characterized in that, The first sleeve (1131) is equipped with a motor, the output end of which is connected to a threaded rod. The second sleeve (1132) is equipped with an internal thread that mates with the threaded rod. The driving part drives the threaded rod to rotate so that the second sleeve (1132) moves relative to the first sleeve (1131) in the height direction.

7. The felt stock preparation system according to claim 2, characterized in that, The shelf (12) includes: A storage frame (121) is connected to the second frame (112); A shelf (122) is connected to a shelf frame (121). The shelf frame (121) is arranged around the shelf (122). The shelf (122) and the shelf frame (121) enclose the shelf to form the storage space (120). The shelf (122) has an anti-slip layer. The distance between the shelf (122) and the plane containing the top of the second frame (112) is varied along the direction away from the handrail (114).

8. The felt preparation system according to claim 1, characterized in that, The top of the bin (20) has a first opening (21), and / or the side wall of the bin (20) has a second opening (22).

9. The felt stock preparation system according to any one of claims 1-8, characterized in that, The base frame (11) also includes: A displacement sensor is disposed on the shelf (12) and is used to measure the height of the shelf (12); A display screen for displaying the height of the shelf (12); The controller is electrically connected to the drive unit, the displacement sensor, and the display screen.

10. A control method for a felt preparation system, used to control the felt preparation system according to any one of claims 1-9, characterized in that, Includes the following steps: Obtain the height information of the shelving unit and the height information of the operator; Based on the height information of the shelf and the height information of the operator, the target height of the shelf is determined; Based on the target height of the shelf, the base frame is controlled to perform target operations, wherein the target operations include: raising operations and lowering operations.

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