A multi-stage discharging device for bearing roller appearance detection
Through visual recognition and unloading motor control of the multi-stage discharge device, efficient classification and sorting of bearing rollers is achieved, solving the problem of unstable product quality after appearance inspection and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAOCHENG SHENGJING INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-23
AI Technical Summary
In existing technologies, it is difficult to achieve efficient classification and sorting of bearing rollers after visual inspection, resulting in unstable product quality.
A multi-stage discharge device is adopted, including a conveyor belt, a vision recognition module, a discharge motor, a discharge pipe, and a collection component. The vision recognition module identifies surface defects, the discharge motor pushes the defective rollers down, the discharge pipe collects them, and the collection component sorts and collects the good rollers to ensure sorting efficiency.
It enables rapid sorting and classification of bearing rollers, improves product quality, prevents rollers from flying out and equipment from colliding, and ensures the safety and operational stability of the equipment.
Smart Images

Figure CN224389388U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of bearing roller inspection devices, specifically relating to a multi-stage discharge device for the appearance inspection of bearing rollers. Background Technology
[0002] Bearing rollers are a crucial component of roller bearings, primarily supporting component rotation through rolling contact. Therefore, the quality of the bearing rollers plays a decisive role in the overall performance of the roller bearing. To improve the performance parameters and product quality of roller bearings, visual inspection is necessary during the manufacturing process to remove rollers with defects such as rust spots and scratches. During visual inspection, the bearing rollers are classified and graded based on the inspection results. Then, according to the grading results, the bearing rollers are either sorted and stored or diverted to different production stages. Utility Model Content
[0003] This invention provides a multi-stage discharge device for the appearance inspection of bearing rollers, in order to solve at least one of the above-mentioned technical problems.
[0004] The technical solution adopted in this utility model is: a multi-stage discharge device for the appearance inspection of bearing rollers, comprising:
[0005] A conveyor belt having a conveyor chain on which multiple rollers are connected at equal intervals along the direction of movement, and the bearing rollers being located between two adjacent rollers;
[0006] A vision recognition module, located above the conveyor belt, is used to identify the outer surface of the bearing rollers;
[0007] An ejector motor, located on one side of the conveyor belt, has an ejector shaft that pushes the bearing rollers off the conveyor belt;
[0008] The unloading pipe is located on one side of the conveyor belt and is arranged opposite to the unloading motor;
[0009] A receiving assembly, located at the end of the conveyor belt, is used to collect bearing rollers that have not been pushed off by the unloading motor.
[0010] In a preferred embodiment, the ejector tube has an inlet end and an outlet end, and the diameter of the ejector tube decreases from the inlet end to the outlet end.
[0011] In a preferred embodiment, the bottom of the feed end has a receiving platform that extends close to the conveyor belt, and the height of the receiving platform is lower than the working surface of the conveyor belt.
[0012] In a preferred embodiment, the storage assembly includes a guide plate connected to the end of the conveyor belt and a storage bin located at the end of the guide plate, the guide plate having a buffer layer and the inner surface of the storage bin having a protective layer.
[0013] In a preferred embodiment, the horizontal plane containing the axis of the ejector shaft coincides with the horizontal plane containing the axis of the bearing roller.
[0014] In a preferred embodiment, the horizontal plane at the highest point of the roller is lower than the horizontal plane at the axis of the bearing roller, and the end of the ejector shaft is connected to an ejector head, the width of which gradually increases from the bottom to the top.
[0015] In a preferred embodiment, the device further includes a motor connector, which includes a base connected to one side of the conveyor belt and an adjustment seat connected to the unloading motor. Either the base or the adjustment seat has an adjustment slide rail extending along the height direction of the conveyor belt, and the other has an adjustment slider that cooperates with the adjustment slide rail, so as to adjust the height of the unloading shaft by cooperating with the adjustment slider and the adjustment slide rail.
[0016] In a preferred embodiment, the ejector shaft has a laser emitter.
[0017] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0018] 1. As a preferred embodiment of this utility model, by utilizing the control of the unloading motor and the vision recognition module, bearing rollers with surface defects can be quickly pushed off the conveyor belt, and bearing rollers with good appearance can be collected by the collection component. This completes the sorting of bearing rollers after surface identification, which is beneficial to the subsequent assembly production process and improves product quality.
[0019] 2. In a preferred embodiment of this utility model, the size of the unloading pipe is designed to facilitate the collection of bearing rollers pushed out by the unloading motor, preventing bearing rollers from flying out and failing to fall into the unloading pipe due to the unloading motor operating too early or too late. The receiving platform is designed to provide guidance for bearing rollers that cannot enter the unloading pipe due to insufficient thrust from the unloading motor, further ensuring that bearing rollers with surface defects can enter the unloading pipe from the conveyor belt under the push of the unloading motor.
[0020] 3. As a preferred embodiment of this utility model, the unloading head is designed to avoid collision with the rollers on the conveyor belt, thereby preventing the unloading head from directly colliding with the conveyor belt under the drive of the unloading shaft, thus providing overall safety and operational stability of the equipment. Attached Figure Description
[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0022] Figure 1 This is a schematic diagram of the overall structure of a multi-stage discharge device from one perspective of a preferred embodiment of the present invention.
[0023] Figure 2 This is a schematic diagram of the overall structure of a multi-stage discharge device from another perspective of a preferred embodiment of the present invention;
[0024] Figure 3 This is a partial structural schematic diagram of a preferred embodiment of the present invention;
[0025] Figure 4 This is a schematic diagram of the connection structure of the unloading motor according to a preferred embodiment of the present invention;
[0026] Figure 5 This is a schematic diagram of the overall structure of the unloading motor according to a preferred embodiment of the present invention.
[0027] Figure label:
[0028] 1. Conveyor belt; 11. Conveyor chain; 12. Roller;
[0029] 2. Visual recognition module;
[0030] 3. Unloading motor; 31. Unloading shaft; 32. Unloading head; 33. Motor connector; 331. Base; 332. Adjusting seat; 333. Adjusting slider; 334. Adjusting slide rail; 335. Laser emitter;
[0031] 4. Unloading pipe; 41. Feeding end; 42. Discharging end; 43. Receiving platform;
[0032] 5. Storage components; 51. Guide plate; 52. Storage bin. Detailed Implementation
[0033] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.
[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0035] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0037] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0038] A preferred embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown in the figure, a multi-stage discharge device for the appearance inspection of bearing rollers is described. The appearance inspection device is not fully shown in the figure. When performing the appearance inspection of bearing rollers, the bearing rollers are first gradually fed onto the conveyor belt 1 by the feeding device. A vision recognition module 2 and a discharge motor 3 are installed on the conveyor belt 1. When the conveyor belt 1 rotates, the bearing rollers will pass through the vision recognition module 2. The vision recognition module 2 identifies the surface defects of the bearing rollers through image recognition. After discovering surface defects such as rust and scratches, the defective bearing rollers are removed from the conveyor belt 1 by the discharge motor 3. The bearing rollers without surface defects that are not removed are collected at the collection component 5 at the end of the conveyor belt 1.
[0039] Specifically, refer to Figure 1 and Figure 2 The multi-stage discharge device includes a conveyor belt 1, which is a chain conveyor belt 1 with a conveyor chain 11. Multiple rollers 12 are connected to the conveyor chain 11 at equal intervals along the direction of movement. When the bearing rollers are transported through the conveyor belt 1, they are located between two adjacent rollers 12.
[0040] The visual recognition module 2, located on the conveyor belt 1, is used to identify the outer surface of the bearing rollers. There are two visual recognition modules 2. A rotating gear is formed on the roller 12, and a rotating rack meshes with the rotating gear below the visual recognition module 2. This allows the roller 12 to rotate when passing through the visual recognition module 2 through the cooperation of the rotating gear and the rotating rack. The rotation of the roller 12 drives the bearing roller on the roller 12 to rotate. This makes it possible for the curved surfaces facing the visual recognition module 2 to be different when the bearing roller passes through the two visual recognition modules 2, which effectively improves the accuracy of visual recognition and avoids blind spots in visual recognition.
[0041] The unloading motor 3, located on one side of the conveyor belt 1, has an unloading shaft 31 that pushes the bearing rollers off the conveyor belt 1. The unloading motor 3 is signal-connected to the vision recognition module 2. When the vision recognition module 2 detects a surface defect on the bearing roller, it transmits a defect signal to the controller. The controller then controls the unloading motor 3 to start. When started, the unloading shaft 31 extends, pushing the bearing roller with the surface defect off the conveyor belt 1. The identification of the bearing roller surface defect and the control of the unloading motor 3's operation rely on existing vision recognition and motor control systems.
[0042] The unloading pipe 4 is located on one side of the conveyor belt 1 and is positioned opposite to the unloading motor 3; the center of the end of the unloading pipe 4 facing the conveyor belt 1 is on the same horizontal line as the center of the unloading shaft 31.
[0043] The collecting component 5, located at the end of the conveyor belt 1, is used to collect bearing rollers that have not been pushed off by the unloading motor 3. This invention, by utilizing the control of the unloading motor 3 and the vision recognition module 2, can quickly push bearing rollers with surface defects off the conveyor belt 1, and collect bearing rollers with good appearance through the collecting component 5. This completes the sorting of bearing rollers after surface identification, which is beneficial for subsequent assembly production processes and improves product quality.
[0044] Furthermore, refer to Figure 3The unloading pipe 4 has an inlet end 41 and an outlet end 42, with the diameter decreasing from the inlet end 41 to the outlet end 42. The size of the unloading pipe 4 facilitates the collection of bearing rollers pushed out by the unloading motor 3, preventing bearing rollers from flying out and failing to fall into the unloading pipe 4 due to the unloading motor 3 operating too early or too late. Furthermore, the bottom of the inlet end 41 has a receiving platform 43, which extends close to the conveyor belt 1, and its height is lower than the working surface of the conveyor belt 1. The receiving platform 43 is designed to provide guidance in cases where the unloading motor 3's thrust is insufficient to enter the unloading pipe 4, further ensuring that bearing rollers with surface defects can enter the unloading pipe 4 from the conveyor belt 1 under the push of the unloading motor 3.
[0045] A preferred embodiment, referring to Figure 3 The receiving assembly 5 includes a guide plate 51 connected to the end of the conveyor belt 1 and a storage bin 52 located at the end of the guide plate 51. The guide plate 51 extends from the conveyor belt 1 to the storage bin 52 at a certain slope, which is between 30° and 45°, thereby extending the movement time of the bearing rollers on the guide plate 51. To prevent damage to the bearing rollers in good condition during transportation, a buffer layer is provided on the guide plate 51, and a protective layer is provided on the inner surface of the storage bin 52. The buffer layer can be made of materials such as sponge, silicone, or rubber. On the one hand, these materials have a certain degree of flexibility, avoiding rigid contact between the bearing rollers and the guide plate 51; on the other hand, these materials have high friction, which allows the bearing rollers to slowly roll into the storage bin 52, avoiding surface damage caused by the free fall of the bearing rollers under gravity.
[0046] In a preferred embodiment, the horizontal plane containing the axis of the ejector shaft 31 coincides with the horizontal plane containing the axis of the bearing roller. This allows the ejector shaft 31 to push the center of the bearing roller during movement, preventing the bearing roller from flying off tangentially due to uneven thrust. Furthermore, referring to... Figure 5 The highest point of the roller 12 is located at a horizontal plane lower than the horizontal plane of the bearing roller axis. The end of the ejector shaft 31 is connected to an ejector head 32, the width of which gradually increases from bottom to top. The ejector head 32 is designed to avoid collision with the roller 12 on the conveyor belt 1, preventing the ejector head 32 from directly colliding with the conveyor belt 1 under the drive of the ejector shaft 31, thus providing overall safety and operational stability of the equipment.
[0047] A preferred embodiment, referring to Figure 4It also includes a motor connecting seat 33, which includes a base 331 connected to one side of the conveyor belt 1 and an adjusting seat 332 connected to the unloading motor 3. The adjusting seat 332 has an adjusting slide rail 334 extending along the height direction of the conveyor belt 1, and the base 331 has an adjusting slider 333 that cooperates with the adjusting slide rail 334. The height of the unloading shaft 31 can be adjusted by adjusting the slider 333 and the adjusting slide rail 334, thereby adapting to bearing rollers of different diameters, so that the unloading motor 3 can always keep the unloading shaft 31 and the bearing roller on the same horizontal line when working.
[0048] Furthermore, the ejector shaft 31 has a laser emitter 335. The light source of the laser emitter 335 coincides with the central axis of the ejector shaft 31. By using the laser emitter 335 to emit laser light, the height of the ejector motor 3 can be easily adjusted, thereby improving the accuracy of the height adjustment of the ejector motor 3.
[0049] For any parts not mentioned in this utility model, existing technologies can be used or referenced.
[0050] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0051] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A multi-stage discharge device for visual inspection of bearing rollers, characterized in that, include The conveyor belt (1) has a conveyor chain (11) on which a plurality of rollers (12) are connected at equal intervals along the direction of motion, and the bearing rollers are located between two adjacent rollers (12). A visual recognition module (2) is located on the conveyor belt (1) and is used to identify the outer surface of the bearing rollers; The unloading motor (3), located on one side of the conveyor belt (1), has an unloading shaft (31) that pushes the bearing rollers off the conveyor belt (1). The unloading pipe (4) is located on one side of the conveyor belt (1) and is arranged opposite to the unloading motor (3); The receiving component (5), located at the end of the conveyor belt (1), is used to collect bearing rollers that have not been pushed off by the unloading motor (3).
2. The multi-stage discharge device for visual inspection of bearing rollers according to claim 1, characterized in that, The ejector tube (4) has an inlet end (41) and an outlet end (42), and the diameter of the ejector tube (4) decreases from the inlet end (41) to the outlet end (42).
3. The multi-stage discharge device for bearing roller appearance inspection according to claim 2, characterized in that, The bottom of the feed end (41) has a receiving platform (43) that extends close to the conveyor belt (1) and the height of the receiving platform (43) is lower than the working surface of the conveyor belt (1).
4. The multi-stage discharge device for visual inspection of bearing rollers according to claim 1, characterized in that, The storage assembly (5) includes a guide plate (51) connected to the end of the conveyor belt (1) and a storage bin (52) located at the end of the guide plate (51). The guide plate (51) has a buffer layer, and the inner surface of the storage bin (52) has a protective layer.
5. The multi-stage discharge device for visual inspection of bearing rollers according to claim 1, characterized in that, The horizontal plane containing the axis of the ejector shaft (31) coincides with the horizontal plane containing the axis of the bearing roller.
6. The multi-stage discharge device for visual inspection of bearing rollers according to claim 5, characterized in that, The horizontal plane at the highest point of the roller (12) is lower than the horizontal plane at the axis of the bearing roller. The end of the ejector shaft (31) is connected to an ejector head (32), and the width of the ejector head (32) gradually increases from the bottom to the top.
7. The multi-stage discharge device for visual inspection of bearing rollers according to claim 1, characterized in that, It also includes a motor connector (33), which includes a base (331) connected to one side of the conveyor belt (1) and an adjustment seat (332) connected to the unloading motor (3). Either the base (331) or the adjustment seat (332) has an adjustment slide rail (334) extending along the height direction of the conveyor belt (1), and the other has an adjustment slider (333) that cooperates with the adjustment slide rail (334) to adjust the height of the unloading shaft (31) by the cooperation of the adjustment slider (333) and the adjustment slide rail (334).
8. The multi-stage discharge device for visual inspection of bearing rollers according to claim 7, characterized in that, The ejector shaft (31) has a laser emitter (335).