Guiding device and conveying system
By combining the mounting base, connecting rod, guide wheel structure, and limiting buffer structure, the pallet posture is dynamically adjusted, solving the problems of pallet tilting and frictional wear, and achieving stable pallet conveying and long service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-15
- Publication Date
- 2026-04-07
AI Technical Summary
Existing guiding devices cannot actively adjust the pallet posture, causing the pallet to tilt and deviate during transportation, affecting the accuracy of subsequent processes, and the long-term friction of hard materials increases maintenance costs.
It adopts a mounting base, connecting rod, guide wheel structure and limit buffer structure, and dynamically adjusts the pallet posture through elastic buffer and rolling friction mechanism to absorb impact energy and reduce friction loss.
This achieves stability and protection of the pallet's posture, extends the service life of the device, and reduces maintenance costs.
Smart Images
Figure CN121799896A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automated production, and more particularly to a guiding device and conveying system. Background Technology
[0002] In industrial automated production, transportation, warehousing, and security inspection systems, pallets or containers, as the core carriers of goods, need to be transported efficiently and stably on conveyor lines (such as roller conveyors, chain conveyors, etc.). However, during manual pushing or mechanical driving, pallets often experience tilting, deviation, or even jamming during their movement due to initial posture deviations, external force interference, or differences in the conveyor line structure.
[0003] Existing guide devices are generally made of rigid materials (such as nylon blocks or plastic blocks) and formed by cutting, and are installed on both sides of the conveyor line by drilling.
[0004] However, the existing guiding device cannot actively adjust the pallet posture, resulting in a persistent skew problem that affects the accuracy of subsequent processes. Summary of the Invention
[0005] This application provides a guiding device and a conveying system to solve the problem of pallet skew.
[0006] In a first aspect, embodiments of this application provide a guiding device, including:
[0007] Mounting bases are provided on both sides of the tray in the direction of travel;
[0008] A connecting rod, the first end of which is hinged to the mounting base;
[0009] A guide wheel structure is connected to the second end of the connecting rod; the guide wheel structure contacts and rolls with the tray;
[0010] A limiting buffer structure is provided on the mounting base; during the rotation of the connecting rod, the connecting rod or the guide wheel structure abuts against the limiting buffer structure, and the limiting buffer structure restricts the rotation stroke of the connecting rod.
[0011] In one possible implementation, the limiting buffer structure includes:
[0012] A buffer spring, the first end of which is connected to the mounting base;
[0013] A buffer abutment is disposed at the second end of the buffer spring; during the rotation of the connecting rod, the connecting rod abuts against the buffer abutment and compresses the buffer spring.
[0014] In one possible implementation, it also includes:
[0015] A return spring is provided, with its first end connected to the mounting base and its second end connected to the guide wheel structure. The return spring drives the guide wheel structure to move toward the tray. When the guide wheel structure comes into contact with the tray, the return spring corrects the position of the tray through the guide wheel structure.
[0016] In one possible implementation, the guide wheel structure includes:
[0017] Guide wheel body;
[0018] An elastic layer structure is disposed on the surface of the guide wheel body.
[0019] In one possible implementation, the guide wheel structure is integrally formed with the elastic layer structure.
[0020] In one possible implementation, a plurality of the mounting bases are symmetrically arranged on both sides of the tray.
[0021] In one possible implementation, a pressure sensing module and a micro motor are provided between the limiting buffer spring and the mounting base. The micro motor changes its trigger threshold by adjusting the initial preload of the limiting buffer spring.
[0022] In one possible implementation, the limiting buffer structure is provided with a damper, which is connected in parallel with the buffer spring.
[0023] Secondly, embodiments of this application provide a conveying system, including a conveying body and a guiding device disposed on the conveying body as described in any one of the first aspects.
[0024] In one possible implementation, it also includes:
[0025] A movable roller is connected to the conveying body; the movable roller drives the tray to move.
[0026] This application provides a guiding device and conveying system. The guiding device includes a mounting base, a connecting rod, a guide wheel structure, and a limiting buffer structure. When the pallet impacts the guide wheel structure, the rotational motion of the connecting rod transfers the impact energy to the buffer spring in the limiting buffer structure. The spring's compression deformation converts kinetic energy into potential energy, which is then stored and gradually released, significantly reducing the hard collision between the pallet and the device. The rolling design of the guide wheel structure further converts sliding friction into rolling friction, reducing scratches and wear on the pallet surface. The limiting buffer structure, through the synergistic action of the buffer abutment and the buffer spring, limits the overstroke of the connecting rod and absorbs the impact energy of the pallet through elastic buffering, preventing damage to the device due to excessive compression. This technical solution achieves buffer protection and posture stability of the pallet through a dual mechanism of dynamic energy absorption and rolling friction, while extending the service life of the device and reducing maintenance costs. Attached Figure Description
[0027] 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.
[0028] Figure 1 A schematic diagram of the overall structure of a guiding device provided in this application;
[0029] Figure 2 This is a schematic diagram of the overall structure of a conveying system provided in this application.
[0030] Figure label:
[0031] 10. Pallet;
[0032] 100. Install the base;
[0033] 200. Connecting rod;
[0034] 300. Guide wheel structure; 310. Guide wheel body; 320. Elastic layer structure;
[0035] 400. Limiting and buffering structure; 410. Buffer spring; 420. Buffer abutment component;
[0036] 500. Return spring;
[0037] 600. Conveying body;
[0038] 700. Moving roller.
[0039] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0040] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0041] The guiding device and conveying system of this application are mainly used in pallet conveying scenarios in intelligent security checkpoints, warehouse sorting systems, and automated production lines. Its core function is to ensure that the pallet remains upright before entering the X-ray imaging area or RFID reading area, thereby guaranteeing image quality and tag reading efficiency.
[0042] The device structure includes guide mechanism assemblies symmetrically arranged on both sides of the conveyor line. Each mechanism consists of guide wheels, spring rods, limiting and buffering structures, and mounting bases. By adjusting the guide wheel spacing and spring preload, the device can adapt to pallets of different sizes and achieve low-friction, high-buffering dynamic guidance when the pallets are running at high speeds.
[0043] Existing rigid guide devices have significant drawbacks in intelligent security inspection scenarios: during the pushing process, the tray is prone to hard collisions with nylon blocks due to posture deviations, resulting in surface scratches or damage to internal items; at the same time, the X-ray imaging area has extremely high requirements for the accuracy of the tray's posture, and traditional guide blocks cannot dynamically correct tray tilt, leading to blurred images or RFID reading failures. In addition, long-term friction between the rigid material and the tray will accelerate wear and tear, increasing maintenance costs.
[0044] For example, in a warehouse sorting system, the guiding device needs to be frequently adjusted when a pallet is loaded with different goods, but the existing structure lacks elastic buffering and adaptive adjustment capabilities, making it difficult to meet the needs of multiple scenarios.
[0045] Starting with the problem of collision damage between the pallet and the guide device, the applicant first analyzed that the rigidity of hard materials makes it impossible to absorb impact energy, and then proposed the preliminary idea of introducing an elastic buffer structure (such as a spring).
[0046] Subsequently, to address the pallet posture correction requirements, a linkage mechanism between the spring rod and the guide wheel was designed, enabling dynamic return to center when the pallet tilts through the rolling of the guide wheel and the compression of the spring. During optimization, the inventors further considered the modular design of the device, improving adaptability through adjustable width and spring preload, and introducing a limiting buffer spring to prevent overshoot damage. Ultimately, through the synergistic effect of the dual-sided guides, a mechanical structure integrating buffering, guiding, and correction was constructed, solving the technical bottlenecks of traditional solutions in terms of impact protection, posture stability, and maintenance costs.
[0047] To address the aforementioned problems, this application provides a guiding device and conveying system. The guiding device includes a mounting base, a connecting rod, a guide wheel structure, and a limiting buffer structure. When the pallet impacts the guide wheel structure, the rotational motion of the connecting rod transfers the impact energy to the buffer spring in the limiting buffer structure. The spring's compression deformation converts kinetic energy into potential energy, which is then stored and gradually released, significantly reducing the hard collision between the pallet and the device. The rolling design of the guide wheel structure further converts sliding friction into rolling friction, reducing scratches and wear on the pallet surface.
[0048] The limiting and buffering structure, through the synergistic action of the buffer abutment and the buffer spring, not only limits the overstroke of the connecting rod but also absorbs the impact energy of the pallet through elastic buffering, preventing damage to the device due to excessive compression. This technical solution achieves buffer protection and posture stability of the pallet through a dual mechanism of dynamic energy absorption and rolling friction, while extending the service life of the device and reducing maintenance costs.
[0049] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.
[0050] like Figure 1 As shown, in a first aspect, embodiments of this application provide a guiding device, including a mounting base 100, a connecting rod 200, a guide wheel structure 300, and a limiting buffer structure 400. The mounting base 100 is disposed on both sides of the pallet 10 in the traveling direction. The first end of the connecting rod 200 is hinged to the mounting base 100. The guide wheel structure 300 is connected to the second end of the connecting rod 200. The guide wheel structure 300 contacts and rolls with the pallet 10. The limiting buffer structure 400 is disposed on the mounting base 100. During the rotation of the connecting rod 200, the connecting rod 200 or the guide wheel structure 300 abuts against the limiting buffer structure 400, and the limiting buffer structure 400 restricts the rotational stroke of the connecting rod 200.
[0051] The mounting base 100 is a support structure fixed to both sides of the conveyor line, used to install other components of the guiding device. It can be a metal or plastic base and is fixed to the conveyor line body by bolts or clips. The connecting rod 200 is a rod-shaped component with one end hinged to the mounting base 100 and the other end connected to the guide wheel structure 300. It can be a metal rod or a composite material rod and is rotatably connected to the mounting base 100 by a pin. The guide wheel structure 300 is a wheel-shaped component that contacts and rolls on the surface of the tray 10. It can be the wheel body of a roller or drum.
[0052] When the pallet 10 travels along the conveyor line to the guiding device area, its edge first contacts the guide wheel structure 300. Under the impact force of the pallet 10, the guide wheel structure 300 deflects in the rolling direction, causing the connecting rod 200 to rotate around the hinge point. The buffer spring 410 in the rotation compression limiting buffer structure 400 of the connecting rod 200 absorbs the impact energy of the pallet 10.
[0053] Meanwhile, the rolling characteristics of the guide wheel structure 300 significantly reduce the friction between the pallet 10 and the guiding device, minimizing surface wear. If the impact force on the pallet 10 is too great, the connecting rod 200 further abuts against the buffer abutment 420 of the limiting buffer structure 400, and the compression of the buffer spring 410 further limits the stroke of the connecting rod 200, preventing damage to the device due to over-impact. Throughout the process, the contact between the guide wheel structure 300 and the pallet 10 is always through rolling rather than sliding, ensuring that the pallet 10 smoothly transitions to the center line of the conveyor.
[0054] This application solves the damage problem caused by the collision between the tray 10 and the guiding device by combining an elastic buffer structure with a rolling guide wheel structure 300. When the tray 10 impacts the guide wheel structure 300, the rotational motion of the connecting rod 200 transmits the impact energy to the buffer spring 410 in the limiting buffer structure 400. The kinetic energy is converted into potential energy through the compression deformation of the spring and stored and gradually released, thereby significantly reducing the hard collision between the tray 10 and the device.
[0055] The rolling design of the guide wheel structure 300 further converts sliding friction into rolling friction, reducing scratches and wear on the surface of the tray 10. The limiting and buffering structure 400, through the synergistic action of the buffer abutment 420 and the buffer spring 410, not only limits the overstroke of the connecting rod 200 but also absorbs the impact energy of the tray 10 through elastic buffering, preventing damage to the device due to excessive compression. This technical solution achieves buffer protection and attitude stability for the tray 10 through a dual mechanism of dynamic energy absorption and rolling friction, while extending the service life of the device and reducing maintenance costs.
[0056] Furthermore, the limiting buffer structure 400 includes a buffer spring 410 and a buffer abutment 420. The first end of the buffer spring 410 is connected to the mounting base 100; the buffer abutment 420 is disposed at the second end of the buffer spring 410; during the rotation of the connecting rod 200, the connecting rod 200 abuts against the buffer abutment 420 and compresses the buffer spring 410.
[0057] The buffer spring 410 is an elastic element used to absorb impact energy and can be a coil spring, leaf spring, or bellows spring. The buffer abutment 420 is a component that contacts the connecting rod 200 and transmits compressive force and can be a metal block, rubber pad, or composite material block.
[0058] When the tray 10 impacts the guide wheel structure 300, the connecting rod 200 rotates around the hinge point, and its end contacts the buffer abutment 420, pushing the buffer abutment 420 to compress the buffer spring 410. The buffer spring 410 absorbs the impact energy of the tray 10 through elastic deformation and transmits the compressive force to the connecting rod 200 through the buffer abutment 420, limiting its further rotation. This structure dynamically adjusts the contact force between the tray 10 and the guide device through the compression and reset process of the buffer spring 410, avoiding damage caused by hard collisions.
[0059] Through the synergistic action of the buffer spring 410 and the buffer abutment 420, the impact energy of the tray 10 is precisely absorbed and released. The buffer abutment 420 serves as the force transmission medium between the connecting rod 200 and the buffer spring 410, ensuring that the buffer spring 410 is uniformly compressed under the impact of the tray 10, thus avoiding damage to the device caused by localized stress concentration.
[0060] This design reduces surface damage to the tray 10, extends the service life of the buffer spring 410, and improves the stability of the device under complex impact conditions.
[0061] Furthermore, the guiding device provided in this application embodiment also includes a return spring 500. The first end of the return spring 500 is connected to the mounting base 100; the second end of the return spring 500 is connected to the guide wheel structure 300; the return spring 500 drives the guide wheel structure 300 to move toward the tray 10; when the guide wheel structure 300 abuts against the tray 10, the return spring 500 corrects the position of the tray 10 through the guide wheel structure 300.
[0062] The return spring 500 is an elastic element used to drive the guide wheel structure 300 back to the center position. It can be a tension spring, torsion spring, or compression spring.
[0063] When the guide wheel structure 300 deflects due to the impact of the tray 10, the return spring 500 drives the guide wheel structure 300 to move towards the tray 10 through elastic force, restoring it to its initial position. The tensile or compressive deformation of the return spring 500 provides a continuous restoring force, ensuring that the guide wheel structure 300 automatically resets after the tray 10 disengages, thereby correcting the offset trajectory of the tray 10. This structure achieves adaptive correction of the tray 10's attitude through the dynamic feedback mechanism of the return spring 500.
[0064] The dynamic return of the pallet 10's posture is achieved through the driving action of the return spring 500. The elastic force of the return spring 500 provides continuous return power after the guide wheel structure 300 deflects, ensuring that the pallet 10 travels stably along the centerline of the conveyor line after disengaging from the guide device. This design can complete posture correction without the need for an external control module, reducing system complexity and adapting to the adaptive adjustment requirements of the pallet 10 under different operating conditions.
[0065] Specifically, the guide wheel structure 300 includes a guide wheel body 310 and an elastic layer structure 320, with the elastic layer structure 320 disposed on the surface of the guide wheel body 310.
[0066] The elastic layer structure 320 is a cushioning material that wraps around the outer surface of the guide wheel structure 300, and can be a polyurethane, silicone rubber or elastic polymer coating.
[0067] The elastic layer structure 320 is in direct contact with the surface of the pallet 10. It absorbs the local pressure of the pallet 10 during impact through the elastic deformation of the material, reducing surface scratches. The low friction characteristics of the elastic layer structure 320 significantly reduce the rolling resistance between the guide wheel structure 300 and the pallet 10, thereby reducing wear and extending service life.
[0068] It should be noted that the elastic layer structure 320 is made of polyurethane material, which is a synthetic material with high elasticity and wear resistance.
[0069] The high elasticity of polyurethane material allows it to deform and recover quickly under the impact of tray 10, while its wear-resistant properties reduce wear during long-term use. The high elasticity and wear resistance of polyurethane material optimize the cushioning and durability of the guide wheel structure 300, extending the maintenance cycle of the device.
[0070] The cushioning and low-friction properties of the elastic layer structure 320 significantly reduce damage to the surface of the tray 10. The elastic layer structure 320 disperses the impact force of the tray 10 during rolling, preventing scratches caused by direct contact with hard materials, and improves the long-term stability of the device by reducing frictional losses.
[0071] In this embodiment, the guide wheel structure 300 and the elastic layer structure 320 are integrally formed. This integral forming method maximizes the tight connection between the guide wheel structure 300 and the elastic layer structure 320.
[0072] Furthermore, multiple mounting bases 100 are symmetrically arranged on both sides of the tray 10.
[0073] The symmetrical arrangement means that the guide wheel structure 300 is mirrored on both sides of the travel direction of the pallet 10, and the spacing and height of the guide wheel structure 300 on the left and right sides are the same.
[0074] The symmetrically arranged guide wheel structure 300 generates a resultant force through the difference in rolling direction, propelling the pallet 10 along the centerline of the conveyor line. This structure enhances the stability of posture correction through the synergistic effect of the double-sided guide wheel structure 300.
[0075] The symmetrical arrangement of the guide wheel structure 300 and mounting base improves the balance of the pallet 10's attitude correction. The rolling force of the double-sided guide wheel structure 300 ensures that the pallet 10 travels stably along the centerline after detaching from the guide device, reducing the offset problem caused by the failure of a single-sided guide wheel structure 300.
[0076] In this embodiment, four guide wheel structures 300 and four mounting bases are provided on both sides of the tray 10. The number of guide wheel structures 300 and mounting bases can be reasonably increased or decreased as needed. Increasing the number can further increase the accuracy of the tray 10 running stably along the centerline, while reducing the number can reduce the overall cost, but will reduce accuracy.
[0077] Furthermore, a pressure sensing module and a micro motor are provided between the limit buffer spring 410 and the mounting base 100. The micro motor changes its trigger threshold by adjusting the initial preload of the limit buffer spring 410.
[0078] The pressure sensing module is a sensor assembly used to detect the impact force of the tray 10, and can be a strain gauge, piezoelectric sensor, or capacitive pressure sensor. The micro motor is a drive device used to adjust the preload of the limit buffer spring 410, and can be a stepper motor, servo motor, or DC motor.
[0079] The pressure sensing module monitors the impact force of the tray 10 in real time and transmits the data to the micro motor. The micro motor drives the adjustment mechanism to change the initial preload of the limit buffer spring 410, so that the trigger threshold of the buffer spring 410 dynamically adapts to the impact intensity of the tray 10. This structure optimizes the buffering effect through closed-loop feedback adjustment.
[0080] By linking the pressure sensing module with the micro motor, the preload of the limit buffer spring 410 is adaptively adjusted. This design enables the device to dynamically optimize buffering performance based on the operating status of the tray 10 (such as load and speed), reducing the need for manual intervention and improving the adaptability of the device under complex working conditions.
[0081] Specifically, a damper is provided in the limiting buffer structure 400, and the damper is connected in parallel with the buffer spring 410.
[0082] A damper is an energy-consuming device used to suppress the impact of spring rebound. It can be a hydraulic damping cylinder, a magnetorheological damper, or a friction damper.
[0083] When the connecting rod 200 rotates to its limit position, the damper generates a controllable damping force through fluid resistance or magnetic field changes, suppressing the rapid rebound of the buffer spring 410. This structure reduces the transmission of impact energy during spring rebound by utilizing the energy dissipation characteristics of the damper.
[0084] The energy dissipation effect of the damper significantly reduces the secondary displacement of the tray 10 caused by spring rebound. The controllability of the damper allows the device to dynamically adjust the buffering effect according to the operating state of the tray 10, improving the accuracy and stability of attitude correction.
[0085] like Figure 2 As shown, in a second aspect, embodiments of this application provide a conveying system, including a conveying body 600 and a guiding device disposed on the conveying body 600 according to any one of the first aspects.
[0086] Furthermore, it also includes a movable roller 700, which is connected to the conveying body 600; the movable roller 700 drives the pallet 10 to move.
[0087] Movable rollers 700 (usually referring to movable rollers or drums) are common components in industrial equipment. Movable rollers 700 are typically designed with a detachable or sliding structure to facilitate routine cleaning, lubrication, or replacement of damaged parts.
[0088] The pallet 10 is placed on the moving roller 700. The pallet 10 is driven to move by the friction between the pallet 10 and the moving roller 700. The moving roller 700 has multiple functions such as guiding, supporting and driving, which simplifies the equipment structure.
[0089] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.
Claims
1. A guiding device, characterized in that, include: Mounting base (100) is provided on both sides of the tray (10) in the direction of travel; A connecting rod (200), the first end of which is hinged to the mounting base (100); A guide wheel structure (300) is connected to the second end of the connecting rod (200); the guide wheel structure (300) contacts and rolls with the tray (10); A limiting buffer structure (400) is provided on the mounting base (100); during the rotation of the connecting rod (200), the connecting rod (200) or the guide wheel structure (300) abuts against the limiting buffer structure (400), and the limiting buffer structure (400) restricts the rotation stroke of the connecting rod (200).
2. The guiding device according to claim 1, characterized in that, The limiting buffer structure (400) includes: A buffer spring (410), the first end of which is connected to the mounting base (100); A buffer abutment (420) is disposed at the second end of the buffer spring (410); during the rotation of the connecting rod (200), the connecting rod (200) abuts against the buffer abutment (420) and compresses the buffer spring (410).
3. The guiding device according to claim 1, characterized in that, Also includes: A reset spring (500) is provided, with its first end connected to the mounting base (100) and its second end connected to the guide wheel structure (300). The reset spring (500) drives the guide wheel structure (300) to move toward the tray (10). When the guide wheel structure (300) abuts against the tray (10), the reset spring (500) corrects the position of the tray (10) through the guide wheel structure (300).
4. The guiding device according to any one of claims 1-3, characterized in that, The guide wheel structure (300) includes: Guide wheel body (310); An elastic layer structure (320) is disposed on the surface of the guide wheel body (310).
5. The guiding device according to claim 4, characterized in that, The guide wheel structure (300) and the elastic layer structure (320) are integrally formed.
6. The guiding device according to claim 4, characterized in that, Multiple mounting bases (100) are symmetrically arranged on both sides of the tray (10).
7. The guiding device according to claim 2, characterized in that, A pressure sensing module and a micro motor are provided between the limiting buffer spring (410) and the mounting base (100). The micro motor changes its trigger threshold by adjusting the initial preload of the limiting buffer spring (410).
8. The guiding device according to claim 7, characterized in that, The limiting buffer structure (400) is provided with a damper, which is connected in parallel with the buffer spring (410).
9. A conveying system, characterized in that, It includes a conveying body (600) and a guiding device according to any one of claims 1-7 disposed on the conveying body (600).
10. The conveying system according to claim 9, characterized in that, Also includes: A movable roller (700) is connected to the conveying body (600); the movable roller (700) drives the tray (10) to move.