An automated polishing production line for kitchen utensils and a polishing detection method thereof

Abstract

The application discloses a kind of automatic polishing production line of kitchen utensil and its polishing detection method, and automatic polishing production line includes feeding device, conveying device, manipulator and polishing device.Conveying device includes conveying mechanism and multiple material trays for placing plate blank;Conveying mechanism is drivenly connected multiple material trays and moves along annular conveying path in circulation, and conveying mechanism has conveying section moving along first direction and back section moving along second direction.Manipulator is arranged at the start end of conveying section of conveying mechanism, and manipulator is configured to move plate blank in feeding station one by one to corresponding material tray.Polishing device includes multiple polishing components arranged above conveying section of conveying mechanism, and multiple polishing components are sequentially arranged along first direction;Polishing component is configured to polish the surface of plate blank on the material tray of conveying section.The present application realizes automatic polishing operation by equipment, and stably guarantees plate blank polishing surface quality.

Description

Technical Field

[0001] This invention relates to the field of kitchen utensil processing equipment technology, and in particular to an automated polishing production line for kitchen utensils and its polishing inspection method. Background Technology

[0002] Stainless steel food tongs are a common kitchen utensil, widely used in home cooking, buffet dining, and food processing. Currently, the manufacturing process of ordinary stainless steel food tongs typically includes processes such as stamping and blanking of stainless steel coils, forming, cleaning and passivation, and quality inspection and packaging. Assembled food tongs also include the addition of spring-loaded latches.

[0003] For high-end food clip products, the requirements for surface quality are even higher. Because the food clips have complex shapes and multiple curved surfaces after molding, subsequent polishing is difficult. Therefore, the stainless steel blank needs to be deburred and polished before molding to improve the product's surface finish.

[0004] However, at present, the deburring and polishing process still generally involves manual handling of stainless steel billets. This traditional manual polishing method has many prominent problems: low production efficiency, long processing time for a single product, poor workpiece transition continuity, making it difficult to meet the needs of mass production; unstable product quality, with surface quality greatly affected by the operator's skill level, resulting in poor quality consistency; high labor intensity and safety hazards, with workers prone to fatigue from prolonged manual handling. Summary of the Invention

[0005] To address the technical problems existing in the prior art, the present invention aims to provide an automated polishing production line for kitchen utensils and its polishing inspection method. This application achieves fully automated continuous processing of plate blank polishing through the cooperation of a feeding device, a robotic arm, a circular conveyor device, and multiple polishing components, ensuring stable polishing quality of the blanks and meeting the high-quality polishing requirements of high-end stainless steel food clips.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] In a first aspect, this application provides an automated polishing production line for kitchen utensils, used for polishing sheet metal blanks for kitchen utensils, the automated polishing production line comprising:

[0008] A feeding device includes a hopper and a feeding mechanism. The hopper carries multiple sheet blanks. The feeding mechanism is configured to grab the sheet blanks one by one from the hopper and output them to the feeding station.

[0009] A conveying device, comprising a conveying mechanism and a plurality of trays for placing sheet blanks; the conveying mechanism drives the plurality of trays to move cyclically along a circular conveying path, the conveying mechanism having a conveying section moving in a first direction and a return section moving in a second direction;

[0010] A robotic arm is located beside the starting end of the conveying section of the conveying mechanism, and the robotic arm is configured to move the sheet metal blanks located at the loading station one by one to the corresponding material trays.

[0011] A polishing device comprising a plurality of polishing components disposed above the conveying section of the conveying mechanism, the plurality of polishing components being arranged sequentially along a first direction; the polishing components being configured to polish the surface of sheet metal blanks on the material tray of the conveying section.

[0012] In conjunction with the first aspect, this application also provides a first specific embodiment of the first aspect, specifically, the material tray is provided with a placement groove and a limiting part arranged around the placement groove; the placement groove is adapted to the plate blank, and the cross-sectional contour of the placement groove is larger than the outer contour of the plate blank;

[0013] The height of the limiting part is less than the thickness of the plate blank, so that the upper surface of the plate blank placed in the placement groove is higher than the upper end surface of the limiting part.

[0014] In conjunction with the first aspect, this application also provides a second specific embodiment of the first aspect. Specifically, the bottom surface of the placement groove is provided with an anti-slip layer, which contacts the lower surface of the sheet blank and restricts the relative sliding of the sheet blank within the placement groove.

[0015] In conjunction with the first aspect, this application also provides a third specific embodiment of the first aspect, specifically, the conveying mechanism includes:

[0016] A transmission chain, the transmission chain having a ring structure, and the conveying device being provided with a drive mechanism for driving the transmission chain to rotate;

[0017] Two linear guide rails are symmetrically arranged on both sides of the conveying section, forming a conveying channel between the two linear guide rails for the transmission chain to pass through; the ends of the linear guide rails are provided with inclined guide portions located at the starting end of the conveying section.

[0018] Multiple trolleys are sequentially and spaced apart from the transmission chain, and the material tray is bolted to the top surface of the trolleys; each trolley has a wheel set on both sides that rolls into a corresponding linear guide rail, and the wheel set includes multiple vertical rollers and multiple horizontal rollers;

[0019] When the transmission chain drives the trolley into the conveying section, the vertical roller and the horizontal roller are guided by the inclined guide and cut into the corresponding linear guide rail; within the conveying section, the vertical roller rolls with the top surface of the linear guide rail for vertical bearing; the horizontal roller rolls with the inner side surface of the linear guide rail for horizontal limiting.

[0020] In conjunction with the first aspect, this application also provides a fourth specific embodiment of the first aspect. Specifically, the trolley includes a trolley body, which has an I-shaped structure; the material tray is bolted to the trolley body, and a limiting pad is provided between the trolley body and the material tray;

[0021] The wheel set includes four vertical rollers and four horizontal rollers; two vertical rollers are connected at intervals on both sides of the outer wall of the trolley body along the front-back direction; two horizontal rollers are connected at intervals on both sides of the bottom surface of the trolley body along the front-back direction.

[0022] In conjunction with the first aspect, this application also provides a fifth specific embodiment of the first aspect, wherein the polishing apparatus comprises two rough polishing components, two belt polishing components, and at least two fine polishing components arranged sequentially along the first direction;

[0023] Each of the coarse polishing components is provided with a first polishing wheel; each of the belt polishing components is provided with an annular polishing belt; and each of the fine polishing components is provided with a third polishing wheel.

[0024] In conjunction with the first aspect, this application also provides a sixth specific embodiment of the first aspect, specifically, the feeding mechanism includes:

[0025] A limiting component is provided at the discharge end of the hopper. The limiting component includes multiple limiting elements, and the limiting component drives the multiple limiting elements to switch between an avoidance position and a limiting position.

[0026] A stop assembly is disposed above the hopper; the stop assembly includes a stop member, and the stop assembly drives the stop member to switch between an initial position and a stop position;

[0027] A gripping component, comprising multiple adsorption elements, wherein the gripping component drives the multiple adsorption elements to switch between a gripping station and a loading station.

[0028] When multiple limiting members are in the limiting position, the multiple limiting members together limit the multiple sheet blanks on the hopper;

[0029] When multiple limiting members switch to the avoidance position and the stop member switches to the stop position, the plate blank located at the foremost position on the hopper is released; the gripping component drives multiple adsorption members to switch to the gripping station and adsorb and grip the plate blank located at the foremost position.

[0030] In conjunction with the first aspect, this application also provides a seventh specific embodiment of the first aspect. Specifically, the hopper has an inclined chute, and the chute is provided with a plurality of guide rods extending along its inclined direction; a plurality of the sheet blanks are arranged sequentially along the guide rods and can slide downward along the inclined direction of the chute.

[0031] In conjunction with the first aspect, this application also provides a ninth specific embodiment of the first aspect, specifically, the automated polishing production line further includes:

[0032] An industrial camera is mounted on the end of the conveyor belt via a mounting bracket. The industrial camera is used to collect image data of the sheet material blank polished by the polishing device on the material tray.

[0033] A control system connected to the industrial camera.

[0034] Secondly, this application also provides a polishing inspection method for an automated polishing production line of kitchen utensils according to the first aspect, comprising the following steps:

[0035] Acquire image data of the surface of the sheet metal blank captured by the industrial camera;

[0036] The image data is preprocessed to obtain a preprocessed image;

[0037] The preprocessed image is input into a pre-trained target detection model, which outputs the classification results of polishing defects and their bounding box coordinates.

[0038] Based on the bounding box coordinates, the corresponding local defect image is extracted from the preprocessed image;

[0039] The local defect image is input into a pre-trained semantic segmentation model for pixel-level feature extraction and segmentation, and the contour information of the polishing defect is output.

[0040] The feature parameters of the polishing defects are calculated based on the contour information, and the polishing quality of the plate blank is determined by comparing the feature parameters with a preset threshold, and the corresponding polishing detection result is output.

[0041] Compared with the prior art, the present invention has at least the following beneficial effects:

[0042] This application provides an automated polishing production line for kitchen utensils, used for polishing sheet metal blanks for kitchen utensils. The automated polishing production line includes a feeding device, a conveying device, a robot, and a polishing device. The feeding device includes a hopper and a feeding mechanism. The hopper carries multiple sheet metal blanks; the feeding mechanism is configured to pick up sheet metal blanks one by one from the hopper and output them to the feeding station. The conveying device includes a conveying mechanism and multiple trays for placing sheet metal blanks; the conveying mechanism drives the multiple trays to move cyclically along a circular conveying path. The conveying mechanism has a conveying section that moves in a first direction and a return section that moves in a second direction. The robot is located beside the starting end of the conveying section of the conveying mechanism and is configured to move the sheet metal blanks located at the feeding station one by one to the corresponding trays. The polishing device includes multiple polishing components disposed above the conveying section of the conveying mechanism. The multiple polishing components are arranged sequentially along the first direction; the polishing components are configured to polish the surface of the sheet metal blanks on the trays of the conveying section.

[0043] This application achieves automatic feeding of sheet metal blanks through a feeding device. A robotic arm transfers the blanks to a conveyor tray, where they are continuously polished by passing through multiple sets of polishing components along the conveyor section. The entire system achieves fully automated continuous polishing. This application replaces traditional manual hand-held polishing, solving the problems of low production efficiency, inconsistent polishing quality due to worker skill levels, high labor intensity, and safety hazards associated with manual work. By automating the polishing process, this application consistently ensures the surface quality of the polished sheet metal blanks, meeting the high-quality polishing requirements of high-end stainless steel food clamp blanks. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of the automated polishing production line provided in the embodiments of this application;

[0045] Figure 2 A schematic diagram of the conveying section of the conveying mechanism provided in the embodiments of this application;

[0046] Figure 3 This is a schematic diagram of the structure of the feeding device provided in the embodiments of this application;

[0047] Figure 4 A schematic diagram of the assembly of the trolley and the tray provided in an embodiment of this application;

[0048] Figure 5 A schematic flowchart illustrating the polishing inspection method for an automated polishing production line provided in this application embodiment;

[0049] In the diagram: 100-Feeding device; 110-Hopper; 111-Guide rod; 120-Feeding mechanism; 121-Limiting component; 122-Stop component; 123-Gripping component; 200-Conveying device; 210-Drive chain; 220-Linear guide rail; 230-Trolley; 240-Pack; 241-Placing slot; 300-Robot arm; 400-Polishing device; 410-Rough polishing component; 420-Belt polishing component; 430-Fine polishing component; 500-Sheet blank. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0054] This application provides an automated polishing production line for kitchen utensils, used for polishing sheet metal blanks for kitchen utensils. The automated polishing production line includes a feeding device, a conveying device, a robotic arm, and a polishing device. This application achieves automatic feeding of sheet metal blanks through the feeding device, and the robotic arm transfers the sheet metal blanks to the material tray of the conveying device. The sheet metal blanks follow the material tray along the conveying section, passing through multiple sets of arranged polishing components to complete continuous polishing. The entire set of equipment realizes fully automated continuous operation of the polishing process.

[0055] Example 1

[0056] Figure 1 This diagram illustrates the structure of an automated polishing production line for kitchen utensils provided in an embodiment of this application. Figure 1 As shown in the figure, this application provides an automated polishing production line for kitchen utensils, which is used to realize the automatic feeding, continuous conveying and automatic polishing of kitchen utensil board blanks.

[0057] The automated polishing production line includes a feeding device 100, a conveying device 200, a robotic arm 300, and a polishing device 400.

[0058] In this application, the feeding device 100 is used to automatically feed sheet blanks. The feeding device 100 includes a hopper 110 and a feeding mechanism 120. The hopper 110 is used to hold multiple sheet blanks to be processed. The multiple sheet blanks can be stacked in the hopper 110 according to a preset method to facilitate continuous feeding. It should be noted that the specific structure of the hopper 110 can be designed according to the size, shape, and storage quantity requirements of the sheet blanks. For example, a storage structure with a support platform can be used to ensure that the sheet blanks can be placed stably. There are no specific limitations.

[0059] In some embodiments, the feeding mechanism 120 is disposed on one side of the hopper 110, and is used to remove the sheet metal blanks in the hopper 110 one by one and transport them to a preset feeding station. Specifically, the feeding mechanism 120 may adopt a lifting feeding mechanism, an adsorption feeding mechanism, a clamping feeding mechanism, or other mechanism structures that can realize the separate transport of sheet metal blanks. When a feeding operation is required, the feeding mechanism 120 picks up a sheet metal blank from the hopper 110 and moves the sheet metal blank to the feeding station to wait for the subsequent transfer by the robot arm 300.

[0060] By setting up the hopper 110 and the feeding mechanism 120, the automatic and continuous feeding of the board blanks can be realized. Compared with the manual handling of the board blanks one by one, it can reduce manual intervention, improve the automation level of the production process, and ensure the continuous operation of the subsequent polishing process.

[0061] Furthermore, the conveying device 200 is used to realize the cyclic conveying of the sheet metal blank between different processing positions. The conveying device 200 includes a conveying mechanism and multiple trays 240. The multiple trays 240 are used to carry the sheet metal blank and are spaced apart along the conveying direction of the conveying mechanism. The specific structure of the trays 240 can be adaptively designed according to the shape of the sheet metal blank to be processed. For example, a positioning structure can be set on the trays 240 to limit the sheet metal blank placed on them, prevent the sheet metal blank from shifting during the conveying process, and ensure the accuracy of the position in subsequent polishing processing.

[0062] The conveying mechanism is driven by multiple trays 240, which are used to drive the trays 240 to move cyclically along a preset annular conveying path. Specifically, the annular conveying path includes a conveying section moving in a first direction and a return section moving in a second direction. The conveying section is used to sequentially convey the trays 240 containing sheet blanks to each processing position to complete the polishing process of the sheet blanks; the return section is used to cyclically convey the empty trays 240 after the conveying task is completed back to the starting position of the conveying section, thereby realizing the recycling of the trays 240.

[0063] It should be noted that the first and second directions can be set according to the actual layout of the production line. For example, the first direction can be the main conveying direction when processing sheet blanks, and the second direction can be the return direction opposite to the first direction, so that the conveying mechanism as a whole forms a closed-loop conveying structure. There are no specific restrictions.

[0064] Furthermore, the robotic arm 300 is positioned beside the starting end of the conveying section of the conveying mechanism and between the loading station and the conveying section, for the purpose of realizing the automatic transfer of the sheet metal blank between the loading device 100 and the conveying device 200.

[0065] Specifically, after the feeding mechanism 120 transports the sheet blanks in the hopper 110 to the feeding station one by one, the robot arm 300 operates according to the preset control program, grabs the sheet blanks located at the feeding station, and moves them to the corresponding material tray 240 at the beginning of the conveying section, so that the sheet blanks enter the subsequent polishing process with the material tray 240.

[0066] The robotic arm 300 can be a multi-axis robotic arm 300, an articulated robotic arm 300, or other automated handling mechanisms with spatial mobility, depending on actual processing needs. By using the robotic arm 300 to transfer sheet metal blanks, the loading and conveying processes can be automatically connected, reducing positional deviations caused by manual placement and improving the placement accuracy of the sheet metal blanks.

[0067] Furthermore, a polishing device 400 is disposed above the conveying section of the conveying mechanism for continuously polishing the sheet metal blanks during the conveying process. The polishing device 400 includes multiple polishing components, which are arranged sequentially above the conveying section along a first direction. Each polishing component corresponds to a processing area on the conveying section and is used to perform surface treatment on the sheet metal blanks on the tray 240 passing through that processing area.

[0068] Specifically, after the robotic arm 300 places the sheet material onto the tray 240 on the conveying section, the conveying mechanism drives the tray 240 to move along the first direction, causing the sheet material to pass sequentially through the locations of multiple polishing components. The multiple polishing components can perform different stages of polishing treatment, such as coarse polishing, fine polishing, and surface finishing processes, to gradually improve the surface quality of the sheet material.

[0069] It should be noted that the number, spacing, and polishing parameters of each polishing component can be adjusted according to the size, material, and processing precision requirements of the sheet material, without specific limitations.

[0070] The automated polishing production line for kitchen utensils provided in this application embodiment automates the entire process of material preparation, from automatic feeding, automatic handling, and cyclic conveying to automatic polishing, by setting up a feeding device 100, a conveying device 200, a robotic arm 300, and a polishing device 400. Specifically, the conveying mechanism drives multiple trays 240 to circulate along a circular conveying path, allowing the trays 240 to return to their starting position after processing, achieving continuous cyclic production. Simultaneously, by sequentially arranging multiple polishing components above the conveying section along a first direction, the material preparation can complete multiple polishing processes sequentially during conveying, improving production efficiency and processing consistency.

[0071] In addition, through the cooperation of the robotic arm 300 and the feeding mechanism 120, the board blanks can be accurately placed on the material tray 240 according to the preset rhythm, avoiding the positioning errors and unstable production rhythm problems that exist in the manual feeding process, thereby improving the automation level and production quality of the kitchen utensils board blank polishing production process.

[0072] like Figure 1 As shown in this embodiment, the conveying device 200 includes a first frame, a drive mechanism, and a conveying mechanism, with the drive mechanism driving the conveying mechanism to operate. The first frame provides overall support for the conveying device 200 and can be adaptively designed according to the overall layout of the production line and the conveying length. Specifically, the first frame extends along a preset conveying direction and is used to install the drive mechanism and the conveying mechanism to ensure a stable cooperative relationship between the various structures.

[0073] The conveying mechanism is mounted on the first frame and is used to carry and convey the trays 240 containing the sheet metal blanks. Specifically, the conveying mechanism is connected to the aforementioned multiple trays 240, so that the trays 240 can move cyclically along a preset annular conveying path under the driving action of the conveying mechanism.

[0074] The drive mechanism is mounted on the first frame and connected to the conveying mechanism to provide power to the conveying mechanism so as to drive the conveying mechanism to perform cyclic motion. Specifically, when the drive mechanism is started, its output power is transmitted to the conveying mechanism, causing the conveying mechanism to move according to the preset conveying rhythm, thereby driving multiple material trays 240 set on the conveying mechanism to move along the circular conveying path, so as to realize the continuous conveying of the sheet material between different processing stations.

[0075] It should be noted that the specific structure of the drive mechanism can be adapted to the form of the conveying mechanism. For example, it can adopt a motor drive structure, a sprocket and chain drive structure, a synchronous belt drive structure, or other drive methods that can realize the cyclic movement of the conveying mechanism. There are no specific restrictions.

[0076] like Figure 2 As shown in the embodiment of this application, the conveying mechanism includes a transmission chain 210, two linear guide rails 220 and multiple trolleys 230.

[0077] The transmission chain 210 is arranged in a ring shape and is connected to the drive mechanism. Specifically, the drive mechanism drives the transmission chain 210 to rotate cyclically along the ring path, so that the multiple trolleys 230 connected to the transmission chain 210 can move synchronously. By adopting the ring-shaped transmission chain 210, the conveying mechanism can form a closed-loop conveying path, thereby realizing the cyclic conveying of the material tray 240 between the conveying section and the return section.

[0078] It should be noted that the specific length of the transmission chain 210 and the shape of the loop path can be adjusted according to the overall layout of the automated polishing production line. For example, the length of the conveyor section can be adaptively designed according to the number of polishing devices 400 and the processing cycle requirements to meet the continuous processing needs of multiple polishing stations, without any specific limitations.

[0079] Furthermore, the conveying device 200 is also equipped with a drive mechanism for driving the transmission chain 210 to rotate. The drive mechanism is connected to the transmission chain 210 and provides rotational power to the transmission chain 210. When the drive mechanism is working, it can drive the transmission chain 210 to rotate cyclically in a preset direction, thereby driving multiple trolleys 230 connected to the transmission chain 210 to move synchronously, so that the material trays 240 placed on the trolleys 230 can pass through each processing position in sequence.

[0080] In one specific embodiment, the drive mechanism includes a driving gear, a driven gear, and a drive motor. The driving gear and driven gear are respectively positioned at different locations on the conveying device 200, and their interaction forms a cyclic transmission path for the transmission chain 210. Specifically, the transmission chain 210 is wound around the outer periphery of the driving gear and driven gear, and meshes with them. When the driving gear rotates, it drives the transmission chain 210 to circulate in a preset direction, thereby driving multiple trolleys 230 and corresponding trays 240 to move synchronously.

[0081] Furthermore, the drive motor is mounted on the first frame and connected to the drive gear to provide rotational power to the drive gear. By designing the drive mechanism to include a drive gear, a driven gear, and a drive motor, a stable and reliable driving force is provided to the transmission chain 210, enabling continuous cyclic conveying of the material tray 240.

[0082] Furthermore, two linear guide rails 220 are symmetrically arranged on both sides of the conveying section of the conveying mechanism, and a conveying channel for the transmission chain 210 to pass through is formed between the two linear guide rails 220.

[0083] Specifically, two linear guide rails 220 extend along a first direction to guide and support the movement of the trolley 230 on the conveying section. A drive chain 210 is positioned between the two linear guide rails 220 and circulates along the conveying channel formed by the two linear guide rails 220. By using the linear guide rails 220 to limit and guide the trolley 230, deviation of the trolley 230 during conveying is prevented, thus improving the stability of the sheet metal blank during conveying.

[0084] Furthermore, the end of the linear guide 220 is provided with an inclined guide portion located at the beginning of the conveying section. Specifically, the inclined guide portion is formed on the linear guide 220 near the beginning of the conveying section, and is used to guide the trolley 230 when it enters the conveying section. Since the trolley 230 needs to switch from the return section to the conveying section during its entry into the conveying section, by providing the inclined guide portion, the wheel assembly on the trolley 230 can transition more smoothly to the guiding area of ​​the linear guide 220, reducing the impact generated when the trolley 230 enters the conveying section and improving the smoothness of the conveying mechanism's operation.

[0085] Furthermore, the conveying mechanism also includes multiple trolleys 230, which are arranged sequentially at intervals along the extension direction of the drive chain 210 and connected to the drive chain 210 respectively. Specifically, each trolley 230 is used to carry a corresponding tray 240, and the trolley 230 can move along the linear guide rail 220 under the traction of the drive chain 210. The tray 240 is disposed on the top of the trolley 230 and is fixedly connected to the trolley 230 by bolts, so that a stable and reliable connection relationship is formed between the tray 240 and the trolley 230.

[0086] Using bolts to fix the tray to the top of the trolley ensures the stability of the tray during conveying and prevents it from loosening due to the force of polishing. It also facilitates the replacement of trays with corresponding structures for different specifications of sheet metal blanks, thus improving the applicability of the conveying device.

[0087] Furthermore, each trolley is equipped with wheel sets on both sides, which roll in contact with the corresponding linear guide rails to reduce frictional resistance during trolley movement and improve the smoothness of trolley movement. Specifically, each wheel set includes multiple vertical rollers and multiple horizontal rollers. The vertical rollers are located on the sides of the trolley and roll in contact with the bearing surface of the linear guide rails to bear the vertical loads generated by the trolleys and the sheet metal blanks on the tray, ensuring stable movement of the trolleys along the linear guide rails.

[0088] Multiple horizontal rollers are disposed on the side of the trolley 230 and roll in contact with the lateral limiting surface of the linear guide 220 to limit the lateral movement of the trolley 230. When the trolley 230 is subjected to external force or when the transmission chain 210 tends to deviate laterally during operation, the horizontal rollers can cooperate with the linear guide 220 to laterally constrain the trolley 230, thereby ensuring that the trolley 230 always moves along the preset conveying path.

[0089] By installing wheel sets including vertical rollers and horizontal rollers on both sides of the trolley, the trolley has both vertical load-bearing capacity and lateral limiting capacity, which can maintain operational stability during the continuous conveying of plate blanks.

[0090] Furthermore, when the transmission chain 210 drives the trolley 230 into the conveying section, the vertical roller and the horizontal roller are guided by the inclined guide and cut into the corresponding linear guide 220; within the conveying section, the vertical roller rolls with the top surface of the linear guide 220 to perform vertical bearing; the horizontal roller rolls with the inner side of the linear guide 220 to perform horizontal limiting.

[0091] Furthermore, regarding the cooperation between the trolley 230 and the linear guide 220, when the transmission chain 210 drives the trolley 230 from the return section into the conveying section, the wheel set on the trolley first passes through the inclined guide section set at the end of the linear guide.

[0092] Specifically, under the traction of the transmission chain 210, the trolley 230 moves along the circular conveying path. When the trolley 230 approaches the beginning of the conveying section, the vertical and horizontal rollers on both sides of the trolley 230 contact the corresponding inclined guides and gradually adjust to positions corresponding to the linear guide rail 220 under the guidance of the inclined guides, allowing the vertical and horizontal rollers to smoothly enter the corresponding linear guide rail 220. By setting the inclined guides, when the trolley 230 transitions from the return section to the conveying section, the wheel assembly does not directly and rigidly collide with the end of the linear guide rail 220, but gradually enters the guide rail mating area under the guidance of the inclined guides, thereby reducing the impact generated when the trolley 230 enters the conveying section and improving the continuity and stability of the conveying mechanism.

[0093] Furthermore, when the trolley 230 enters the conveying section, the vertical rollers roll in cooperation with the top surface of the linear guide rail 220 to provide vertical support for the trolley 230 and the material tray 240 mounted on the trolley 230.

[0094] Specifically, the gravitational load generated by the material tray 240 after bearing the sheet blank is transmitted to the vertical rollers via the trolley 230, and then from the vertical rollers to the top surface of the linear guide rail 220, so that the linear guide rail 220 provides stable support for the trolley 230. Because the vertical rollers and the linear guide rail 220 use a rolling engagement method, compared with the traditional sliding support structure, the frictional resistance during the trolley's movement can be effectively reduced, allowing the trolley to move more smoothly along the conveyor section under the drive of the transmission chain.

[0095] Furthermore, the horizontal rollers roll in contact with the inner surface of the linear guide rails 220 to limit the horizontal movement of the trolley 230. Specifically, during the conveying process, the horizontal rollers maintain rolling contact with the inner surface of the linear guide rails 220, ensuring that the trolley 230 remains within the conveying channel formed between the two linear guide rails 220. When the trolley 230 experiences lateral deviation due to changes in the tension of the transmission chain 210, uneven stress on the sheet metal, or vibrations during equipment operation, the horizontal rollers can constrain the trolley through their contact with the inner surface of the linear guide rails, preventing the trolley from deviating from the preset conveying path.

[0096] Through the aforementioned combination of vertical and horizontal rollers, the trolley 230 simultaneously possesses both vertical load-bearing and horizontal limiting functions within the conveying section. Specifically, the vertical rollers primarily bear the vertical load generated by the material tray 240 and the sheet metal blank, while the horizontal rollers ensure the stable operation of the trolley 230 along the conveying direction. This improves the positioning accuracy and operational reliability of the material tray 240 during conveying, ensuring that the sheet metal blank accurately passes through the corresponding processing positions of each polishing component.

[0097] In this embodiment, the conveying mechanism is designed with a structure in which a transmission chain 210, a linear guide rail 220, and trolleys 230 cooperate. A drive mechanism drives the annular transmission chain 210 in cyclic motion, and the linear guide rail 220 guides and supports multiple trolleys 230, allowing the material tray 240 to move stably and cyclically along a preset annular conveying path with the trolleys 230. Simultaneously, by providing inclined guide sections at the ends of the linear guide rail 220 and wheel sets with vertical and horizontal rollers on both sides of the trolleys 230, a smooth transition is achieved when the trolleys 230 switch between the conveying and return sections, improving the load-bearing capacity and operational reliability during the conveying process, thereby meeting the requirements for automated continuous polishing of kitchen utensil board blanks.

[0098] In one specific embodiment, the trolley 230 includes a trolley 230 body, which has an I-shaped structure. A tray 240 is bolted to the trolley 230 body, and a limiting pad is provided between the trolley 230 body and the tray 240. The wheel set includes four vertical rollers and four horizontal rollers; two vertical rollers are spaced apart on each side of the outer wall of the trolley 230 body along the front-back direction; two horizontal rollers are spaced apart on each side of the bottom surface of the trolley 230 body along the front-back direction.

[0099] By designing the main body of the trolley 230 as an I-shaped structure, the weight of the trolley 230 itself can be reduced while ensuring the overall structural strength, and at the same time, a stable installation space can be provided for the wheel set and the material tray 240.

[0100] The material tray 240 is located on top of the trolley 230 body and is fixedly connected to the trolley 230 body by bolts. This bolted connection ensures high reliability between the material tray 240 and the trolley 230 body, allowing the material tray 240 to stably support the sheet material and move synchronously with the trolley 230. Furthermore, when it is necessary to replace the material tray 240 with different specifications or positioning methods, only the corresponding bolts need to be removed to complete the disassembly and assembly of the material tray 240, improving the maintenance convenience of the conveying device 200.

[0101] Furthermore, a limiting block is provided between the trolley 230 body and the tray 240. Specifically, the limiting block is positioned between the trolley 230 body and the tray 240 to limit and support the installation position of the tray 240. By providing the limiting block, a preset distance is maintained between the tray 240 and the trolley 230 body, while preventing direct contact between the bottom surface of the tray 240 and the trolley 230 body, thus improving the installation stability of the tray 240.

[0102] It should be noted that the number and specific arrangement of the limiting pads can be adjusted according to the size of the material tray 240 and the load-bearing requirements. For example, limiting pads can be set at multiple stress points on the top of the trolley 230 body to ensure that the load on the material tray 240 is evenly transmitted to the trolley 230 body, thereby improving the stability of the material tray 240 during operation.

[0103] Furthermore, the wheel assembly includes four vertical rollers and four horizontal rollers. Specifically, two vertical rollers are connected to the outer walls of both sides of the trolley 230 body at intervals along the front-rear direction, meaning that a total of four vertical rollers are provided on both sides of the trolley 230 body. The four vertical rollers respectively roll into contact with the top surface of the corresponding side linear guide rail 220 to bear the vertical loads generated by the trolley 230 body, the material tray 240, and the sheet metal blank.

[0104] By installing two vertical rollers spaced apart along the front-to-back direction on each side of the trolley 230 body, the trolley 230 can form multiple support points during movement, preventing tilting due to uneven force and improving the stability of the trolley 230 as it runs along the conveyor section. Simultaneously, the spaced arrangement of multiple vertical rollers also enhances the trolley 230's ability to traverse areas with changes in the conveyor path, making its movement smoother.

[0105] Furthermore, two horizontal rollers are connected to each side of the bottom surface of the trolley 230 body at intervals along the front-rear direction, meaning that a total of four horizontal rollers are provided on the bottom of the trolley 230 body. Specifically, the four horizontal rollers roll into contact with the inner surfaces of the two linear guide rails 220 to limit the horizontal displacement of the trolley 230 body. By setting the horizontal rollers on both sides of the bottom surface of the trolley 230 body and arranging them at intervals along the front-rear direction, the trolley 230 body is subject to limiting constraints in multiple directions during movement, ensuring that the trolley 230 remains within the conveying channel formed between the two linear guide rails 220.

[0106] During the operation of the trolley 230, the transmission chain 210 drives the trolley 230 to move along the conveying path. The vertical rollers roll in contact with the top surface of the linear guide rail 220 to bear the vertical load generated by the material tray 240 and the sheet material; the horizontal rollers roll in contact with the inner side of the linear guide rail 220 to limit the lateral movement of the trolley 230. When the trolley 230 enters the conveying section from the return section, the vertical rollers and horizontal rollers smoothly enter the corresponding guide rail mating area through the inclined guide portion at the end of the linear guide rail 220, thereby realizing the continuous transition of the trolley 230 between different conveying areas.

[0107] Through the above structural design, the main body of the trolley 230 is designed as an I-shaped structure, and combined with the wheel arrangement of four vertical rollers and four horizontal rollers, the trolley 230 has both high load-bearing capacity and operational stability, which can meet the continuous circulation conveying needs of kitchen utensil board blanks in the automated polishing production line.

[0108] like Figure 3 As shown in this embodiment, the tray 240 is provided with a placement groove 241 and a limiting part surrounding the placement groove 241; the placement groove 241 is adapted to the sheet blank, and the cross-sectional profile of the placement groove 241 is larger than the outer profile of the sheet blank. The height of the limiting part is less than the thickness of the sheet blank, so that the upper surface of the sheet blank placed in the placement groove 241 is higher than the upper end face of the limiting part.

[0109] Furthermore, regarding the specific structural design of the tray 240, the tray 240 is provided with a placement groove 241 for carrying the sheet blank and a limiting part surrounding the placement groove 241.

[0110] The placement groove 241 is formed in the top area of ​​the tray 240 to accommodate and position the sheet blank. Specifically, the placement groove 241 is adapted to the structural shape of the sheet blank. For example, when the sheet blank has an irregular shape, the placement groove 241 can also be adaptively designed according to the shape of the sheet blank to improve the placement stability of the sheet blank on the tray 240, without any specific limitation. In another specific embodiment, the tray 240 and the placement groove 241 can be configured as a rectangular groove structure to accommodate sheet blanks with different shapes.

[0111] Furthermore, the cross-sectional profile of the placement groove 241 is larger than the outer profile of the sheet metal blank. Specifically, an appropriate assembly gap is reserved between the placement groove 241 and the sheet metal blank, allowing the sheet metal blank to be smoothly placed into the placement groove 241 without affecting the automatic feeding operation due to excessively tight dimensional fit. At the same time, this gap is not too large to avoid significant shaking of the sheet metal blank during transportation, thus balancing the convenience of automatic placement and positioning stability. It can be understood that the limiting part set around the placement groove 241 is used to circumferentially limit the sheet metal blank placed in the placement groove 241.

[0112] Specifically, the limiting part can be continuously arranged along the periphery of the placement groove 241, or multiple spaced limiting structures can be used to form a limiting area around the placement groove 241. When the sheet material is placed into the placement groove 241, the edge area of ​​the sheet material can correspond to the limiting part, thereby restricting the lateral movement of the sheet material on the tray 240, preventing the sheet material from shifting due to vibration, inertial force, or placement error of the robot arm 300 during the operation of the conveying mechanism, and improving the positional stability of the sheet material during the conveying process.

[0113] Furthermore, the height of the limiting part is less than the thickness of the sheet metal blank. Specifically, when the sheet metal blank is placed in the placement groove 241, the lower surface of the sheet metal blank is located within the placement groove 241, while the upper surface of the sheet metal blank is positioned above the upper end face of the limiting part. In other words, the limiting part only limits the side area of ​​the sheet metal blank and does not obstruct the upper surface processing area of ​​the sheet metal blank.

[0114] Through the above structural design, the plate blank can be circumferentially constrained by the limiting part after being placed in the placement groove 241, thereby achieving reliable positioning; at the same time, since the upper surface of the plate blank protrudes from the upper end face of the limiting part, the polishing component located above the conveying section can directly contact the upper surface of the plate blank for polishing without being interfered with by the limiting part.

[0115] Furthermore, when the robotic arm 300 places the sheet metal blank into the tray 240, even if there is a certain positional deviation between the sheet metal blank and the placement groove 241, the sheet metal blank can still enter the placement groove 241 under its own gravity and complete positioning under the guidance of the limiting part. Subsequently, the tray 240 moves along the conveying section driven by the conveying mechanism, and the limiting part continuously provides lateral constraint to the sheet metal blank to ensure that the sheet metal blank can accurately pass through the processing areas corresponding to each polishing component.

[0116] It should be noted that, compared to the thin stainless steel sheets used in ordinary food clips, the sheet metal blanks of high-end food clips typically have a relatively larger thickness and weight. Specifically, when the sheet metal blank is placed in the placement groove 241 of the tray 240, its own weight allows it to stably conform to the bottom area of ​​the placement groove 241. Furthermore, based on the circumferential restraint provided by the limiting part, the greater self-weight further improves the stability of the sheet metal blank during transport.

[0117] During the process of the conveying mechanism driving the material tray 240 to move along the conveying path, even under the influence of the processing force of the polishing component, the plate blank is not prone to lateral movement, local warping, or falling out of the placement groove 241, thus maintaining a relatively stable placement state.

[0118] In one specific embodiment, to further improve the placement stability of the sheet blank during the conveying and polishing process, the bottom surface of the placement groove 241 is provided with an anti-slip layer.

[0119] Specifically, the anti-slip layer is disposed at the bottom bearing area of ​​the placement groove 241 and contacts the lower surface of the sheet material placed in the placement groove 241. The anti-slip layer is used to increase the friction between the sheet material and the tray 240, thereby limiting the relative sliding of the sheet material within the placement groove 241. It should be noted that the anti-slip layer can be a rubber layer, a polyurethane layer, or an anti-slip coating, and the specific choice can be made according to the material, weight, and production environment of the sheet material; this application does not impose any restrictions on this.

[0120] Furthermore, when the polishing assembly polishes the surface of the sheet metal blank, the polishing wheel, polishing belt, or other polishing actuators apply a tangential force and a certain downward pressure to the sheet metal blank. The anti-slip layer works in conjunction with the limiting part to provide stable constraint on the sheet metal blank. The limiting part mainly restricts the circumferential displacement of the sheet metal blank, while the anti-slip layer mainly increases the frictional holding force between the sheet metal blank and the material tray 240. Together, they further reduce the possibility of the sheet metal blank shifting, shaking, or lifting during the polishing process.

[0121] In one specific implementation, the anti-slip layer comprises a base layer, a fiber fabric layer, and a resin curing layer. The fabric can be made of polyester fiber, aramid fiber, glass fiber, or other high-strength, wear-resistant materials; the resin layer can be made of epoxy resin, polyurethane resin, phenolic resin, or other wear-resistant resin materials. By impregnating, coating, or laminating the fabric with resin, an anti-slip layer structure with a high coefficient of friction and minimal overall compression deformation can be formed. Compared to highly elastic materials such as rubber pads, this anti-slip layer is less prone to significant deformation when bearing the weight of the sheet material and polishing pressure, thus providing stable support for the sheet material.

[0122] like Figure 1 As shown, in one specific embodiment, the polishing apparatus 400 includes a second frame, multiple polishing components, and multiple drive components. The second frame is disposed beside the first frame and extends along the conveying direction of the conveying mechanism. The second frame provides mounting support for each drive component and polishing component, enabling the polishing apparatus 400 to be stably positioned above the conveying device 200.

[0123] Specifically, the second frame can be a steel frame structure. Further, multiple drive components are fixedly installed on the second frame, and these drive components are arranged sequentially along the first direction. Specifically, each drive component corresponds to a different processing area on the conveyor section. When the material tray 240 moves along the first direction under the drive of the conveyor mechanism, the sheet material can sequentially pass through the processing positions corresponding to each drive component, thereby completing the continuous polishing operation.

[0124] It should be noted that the number of drive components can be set according to actual processing requirements. For example, when the sheet material needs to undergo multiple polishing processes, the number of drive components and polishing components can be increased accordingly; when the processing technology is relatively simple, the number of corresponding components can be reduced. This application does not impose any restrictions on this.

[0125] Furthermore, each drive component is connected to a corresponding polishing component. Specifically, each drive component drives its corresponding polishing component to perform polishing operations, thereby forming multiple independent polishing stations. Since each polishing component corresponds to an independent drive component, each polishing component can adopt different operating parameters according to actual processing requirements.

[0126] For example, a polishing assembly located at the front end of the conveying direction can be used for rough polishing, while a polishing assembly located at the rear end can be used for fine polishing or surface finishing. By controlling each drive assembly separately, different polishing assemblies can have different rotational speeds, output power, or processing cycles, thereby meeting the needs of multi-stage continuous polishing.

[0127] Furthermore, each polishing component is suspended above the conveying section. Specifically, the polishing components are mounted on the second frame via corresponding drive components and are located directly above the conveying section, so that the polishing components and the sheet metal blanks on the conveying section are arranged vertically in correspondence. When the material tray 240 is conveyed to the corresponding polishing station, the polishing components can act on the surface of the sheet metal blank from top to bottom to perform surface polishing treatment. Since the polishing components are suspended, there is no need to set up additional support processing mechanisms below the conveying section, thereby reserving sufficient space for the operation of the material tray 240 and the trolley 230 and avoiding structural interference between the polishing device 400 and the conveying mechanism.

[0128] Furthermore, during the continuous operation of the conveying mechanism, multiple trays 240 sequentially pass through the locations of multiple polishing components. The polishing component at the front first performs preliminary surface treatment on the sheet blank, and then subsequent polishing components continue to process the sheet blank step by step, thereby gradually improving the surface quality of the sheet blank.

[0129] For example, the drive assembly includes a mounting bracket, a lifting drive mechanism, a rotating drive mechanism, and a connecting base. The mounting bracket is fixedly mounted on the second frame, providing a mounting base for the lifting drive mechanism and the rotating drive mechanism. Specifically, the mounting bracket is arranged vertically and fixedly connected to the second frame. The mounting bracket can be a welded steel structure. The lifting drive mechanism is mounted on the mounting bracket and drives the rotating drive mechanism and the polishing assembly to move vertically.

[0130] Specifically, the lifting drive mechanism includes a lifting motor, a transmission screw, and a guide assembly. The lifting motor is mounted on the top of the mounting bracket and is driven by the transmission screw. The transmission screw is vertically oriented and rotatably mounted on the mounting bracket. The connecting seat is threaded onto the transmission screw and slides with the guide assembly. The guide assembly restricts the rotation of the connecting seat, allowing it to move vertically only. When the lifting motor starts, it drives the transmission screw to rotate, thereby driving the connecting seat to move axially along the transmission screw, thus adjusting the height of the polishing assembly. By setting up the lifting drive mechanism, the working height of the polishing assembly can be automatically adjusted according to the thickness of different sized sheet metal blanks, ensuring that the polishing assembly always acts on the surface of the sheet metal blank.

[0131] Furthermore, a rotary drive mechanism is mounted on the lower end of the connecting base. The rotary drive mechanism includes a drive motor and an output spindle. The drive motor is fixedly mounted on the connecting base. The output spindle is driven by the drive motor, for example, by a belt drive. The polishing assembly is mounted on the output spindle and rotates synchronously with it. When the drive motor is working, the output spindle drives the polishing assembly to rotate at high speed, thereby achieving the polishing process on the surface of the sheet metal blank.

[0132] Furthermore, to improve pressure stability during the polishing process, the drive assembly also includes an elastic compensation mechanism. The elastic compensation mechanism is located between the connecting seat and the rotary drive mechanism. Specifically, the elastic compensation mechanism may include a guide rod 111 and a compression spring. The guide rod 111 is slidably fitted with the connecting seat. The compression spring is sleeved on the outside of the guide rod 111 and located between the connecting seat and the rotary drive mechanism. When the polishing assembly contacts the surface of the sheet metal blank, the compression spring generates an elastic clamping force, enabling the polishing assembly to stably adhere to the surface of the sheet metal blank. When local thickness fluctuations occur in the sheet metal blank, the elastic compensation mechanism can generate corresponding expansion and contraction compensation, thereby preventing the polishing assembly from generating excessive impact force on the sheet metal blank and improving polishing quality.

[0133] like Figure 1 As shown, in one specific embodiment, the polishing apparatus 400 includes multiple polishing components, including two coarse polishing components 410, two belt polishing components 420, and at least two fine polishing components 430 arranged sequentially along a first direction. Each coarse polishing component 410 is provided with a first polishing wheel; each belt polishing component 420 is provided with an annular polishing belt; and each fine polishing component 430 is provided with a third polishing wheel.

[0134] In one specific embodiment, in order to enable the sheet metal blank to gradually complete surface shaping, surface finishing, and fine processing, the polishing device 400 employs a graded polishing structure for its multiple polishing components. Specifically, the multiple polishing components include two coarse polishing components 410, two belt polishing components 420, and at least two fine polishing components 430 arranged sequentially along a first direction.

[0135] The aforementioned polishing components are arranged sequentially above the conveying section according to the processing order of the sheet blank. As the sheet blank moves along the first direction driven by the conveying mechanism, it can sequentially pass through the rough polishing process, the belt polishing process, and the fine polishing process, thereby achieving a step-by-step improvement in the surface quality of the sheet blank.

[0136] Furthermore, each coarse polishing assembly 410 is equipped with a first polishing wheel. Specifically, the first polishing wheel is driven to rotate by a corresponding drive assembly to perform preliminary polishing on the surface of the board blank. Since the surface of the kitchen utensil board blank may have stamping marks, cutting marks, oxide layers, or local uneven areas during the previous processing, the coarse polishing assembly 410 can preferentially remove larger surface defects.

[0137] In one embodiment, the two rough polishing components 410 arranged along the first direction can employ different polishing parameters. For example, the front rough polishing component 410 is used to quickly remove larger surface defects, while the rear rough polishing component 410 is used to further homogenize the surface state after rough polishing, thereby providing a better processing foundation for subsequent belt polishing processes. By setting two consecutive rough polishing components 410, the problem of uneven surface quality caused by excessive rough polishing in a single pass can be avoided, improving the processing stability of subsequent polishing processes.

[0138] Furthermore, each belt polishing assembly 420 is equipped with an annular polishing belt. Specifically, the annular polishing belt is wound between corresponding drive wheel sets and circulates under the drive of the drive assembly. When the sheet material is conveyed to the area below the belt polishing assembly 420, the annular polishing belt contacts the surface of the sheet material, continuously finishing the surface after rough polishing. It should be noted that compared to the polishing wheel structure, the annular polishing belt has the advantages of a larger contact area, continuous processing trajectory, and uniform surface finishing. Therefore, after being processed by the rough polishing assembly 410, the belt polishing assembly 420 can further eliminate the processing lines left in the rough polishing stage and improve the flatness of the sheet material surface.

[0139] In one embodiment, the two belt polishing components 420 can use belts of different grits. For example, the front belt polishing component 420 uses a coarser grit belt to further eliminate rough polishing marks; the rear belt polishing component 420 uses a finer grit belt to improve surface smoothness. Through graded belt polishing, a more uniform processing effect can be obtained on the surface of the sheet material.

[0140] Furthermore, each fine polishing assembly 430 is equipped with a third polishing wheel. Specifically, the third polishing wheel is located after the belt polishing assembly 420 and is used to perform fine polishing on the sheet material after belt polishing. After the sheet material has undergone rough polishing and belt polishing in sequence, most of the processing defects on its surface have been removed. At this time, the third polishing wheel can further improve the surface smoothness and reflective effect, so that the surface of the sheet material meets the decorative quality required for kitchenware products.

[0141] It should be noted that the number of polishing components 430 is preferably no less than two. By setting at least two polishing components 430, the polishing process can be divided into multiple processing stages. For example, the front polishing component 430 is used to improve the surface smoothness, while the rear polishing component 430 is used to achieve mirror finish or high gloss finish, thereby further improving the appearance quality of the product.

[0142] Furthermore, each fine polishing component 430 can be configured with polishing wheels of different materials and different types of polishing media according to actual processing needs. For example, cloth wheels, sisal wheels, fiber wheels, or other polishing wheel structures suitable for fine polishing can be used, along with corresponding polishing waxes or polishing agents, to achieve a more ideal surface effect.

[0143] In actual operation, the robotic arm 300 places the sheet metal blank onto the tray 240, and the conveying mechanism drives the tray 240 to move along the first direction. The sheet metal blank first passes through two rough polishing components 410 to initially remove surface defects; then it passes through two abrasive belt polishing components to homogenize and refine the surface texture; finally, it passes through at least two fine polishing components to refine the surface and enhance its gloss. After the above multi-stage continuous polishing process, the sheet metal blank can obtain a high degree of surface flatness and smoothness, thus meeting the processing requirements of high-end food tongs and other kitchen utensils.

[0144] By employing a multi-stage polishing process layout consisting of "two rough polishing components 410 + two belt polishing components 420 + at least two fine polishing components 430," different polishing stages undertake different processing tasks, avoiding excessive processing load on a single polishing station. Simultaneously, with each polishing component arranged sequentially along the conveying direction, the sheet material can continuously complete all polishing processes without repeated clamping, which improves production efficiency, reduces manual intervention, and ensures consistent product surface quality.

[0145] like Figure 3 As shown, in one specific embodiment, regarding the specific structural design of the hopper 110, the hopper 110 has an inclined chute. The chute is used to store multiple sheet metal blanks to be loaded and provides an automatic unloading channel for the sheet metal blanks. Specifically, the chute is arranged at an incline, with the bottom forming a picking end. Multiple sheet metal blanks are stacked sequentially in the chute and move downwards along the inclined direction of the chute under their own gravity, so that the sheet metal blank at the foremost position can always be kept at the preset picking position for subsequent loading mechanism 120 to grasp.

[0146] Furthermore, the chute is provided with a plurality of guide rods 111, which extend along the inclined direction of the chute. Specifically, the multiple guide rods 111 are arranged parallel to each other at intervals along the conveying direction of the sheet material, together forming a guiding area for supporting the sheet material. The sheet material is placed on the multiple guide rods 111 and is supported and guided by the guide rods 111.

[0147] Furthermore, multiple sheet blanks are arranged sequentially along the guide rods and can slide downwards along the inclined direction of the chute. Specifically, multiple sheet blanks are arranged in a stacked manner within the chute. When a sheet blank located at the picking end is taken away by the feeding mechanism, the sheet blank behind it automatically moves forward to fill the gap under its own gravity, thereby moving a new sheet blank to the picking position.

[0148] Through the above structural design, the hopper 110 can form a continuous automatic material replenishment function. That is to say, without frequent manual intervention, each time the feeding mechanism 120 completes a material picking action, the subsequent sheet material can be automatically replenished to the picking station, thereby ensuring the continuity of the feeding process.

[0149] Furthermore, the guide rod 111 preferably adopts a round rod structure. Specifically, the outer surface of the round rod forms a line contact or near-line contact relationship with the sheet material, which can further reduce frictional resistance compared to a planar support structure, making it easier for the sheet material to slide under gravity. At the same time, the round rod structure is simple to process, has a low manufacturing cost, and has good wear resistance, which can meet the requirements of long-term continuous material supply.

[0150] The sheet metal blanks in this application are mainly used for processing high-end food clips and other kitchen utensils. Unlike ordinary sheet metal parts, high-end food clips usually place more emphasis on product appearance design. The outer contour of their sheet metal blanks mostly adopts curved, streamlined, or irregular contour structures, and rarely adopts regular rectangular structures.

[0151] Because the shapes of the blanks corresponding to different models of food clamps vary considerably, the center of gravity, support position, and contact area between each blank and the hopper 110 also differ. Therefore, in one specific embodiment, each guide rod 111 is mounted on the slide groove using a height-adjustable structure.

[0152] Specifically, each guide rod 111 is welded with multiple screws, which are spaced apart along the length of the guide rod 111. The corresponding position of the slide groove has mounting holes for the screws to pass through. The guide rod 111 is mounted on the slide groove via screws and bolt assemblies. During installation, after the screw passes through the corresponding mounting hole, it is locked in place with a nut, thus achieving a detachable connection between the guide rod 111 and the slide groove. Since the nut can be adjusted along the axial direction of the screw, the installation height of the guide rod 111 relative to the bottom of the slide groove can be changed by adjusting the position of the nut.

[0153] Furthermore, the installation heights of the different guide rods 111 can be set to be the same or different. For example, for a sheet metal blank with a relatively flat outer contour, each guide rod 111 can be located on the same support plane to form a flat guide support surface. For a sheet metal blank with a large curvature or irregular contour, the height of each guide rod 111 can be adjusted according to its bottom contour characteristics, so that multiple guide rods together form a support structure that matches the contour of the sheet metal blank.

[0154] In actual operation, the sheet metal blanks are arranged sequentially in the chute along the guide rods 111. After the sheet metal blank at the picking end is taken away by the feeding mechanism 120, the subsequent sheet metal blanks slide down along the guide rods 111 to fill the gap under their own gravity. Since the height of each guide rod 111 can be adjusted according to the profile of the sheet metal blank, even when facing food clamp sheet metal blanks of different models and curve shapes, it can still ensure that they maintain good posture stability during the downward movement, reducing the occurrence of tilting, overturning, and jamming.

[0155] In actual operation, operators place multiple sheet blanks sequentially into the chute, where they are arranged along guide rod 111 to form a waiting queue. Once the sheet blank at the lower end of the chute is picked up by the feeding mechanism 120 and transported to the feeding station, the sheet blanks behind it continue to slide downwards along guide rod 111 under gravity and automatically move to the picking position to await the next picking operation. This cycle repeats, achieving continuous automatic feeding of sheet blanks.

[0156] like Figure 3 As shown in this embodiment, to achieve automatic separation and unloading of sheet metal blanks within the hopper 110, the feeding mechanism 120 includes a limiting component 121, a stop component 122, and a gripping component 123. The limiting component 121 is located at the discharge end of the hopper 110 and includes multiple limiting members. The limiting component 121 drives the multiple limiting members to switch between an avoidance position and a limiting position. The stop component 122 is located above the hopper 110 and includes a stop member. The stop component 122 drives the stop member to switch between an initial position and a stop position. The gripping component 123 includes multiple adsorption members, and the gripping component 123 drives the multiple adsorption members to switch between a gripping station and a feeding station.

[0157] Furthermore, when multiple limiting components are in the limiting position, the multiple limiting components together limit the multiple sheet metal blanks on the hopper 110. When the multiple limiting components switch to the avoidance position and the stop component switches to the stop position, the sheet metal blank at the foremost position on the hopper 110 is released; the gripping component 123 drives multiple adsorption components to switch to the gripping station and adsorb and grip the sheet metal blank at the foremost position.

[0158] The limiting component 121 is disposed at the discharge end of the hopper 110 and is used to limit the overall movement of multiple sheet blanks arranged in the hopper 110. The limiting component 121 includes multiple limiting elements, which are spaced apart and can switch between an avoidance position and a limiting position under the action of a drive.

[0159] Specifically, when multiple limiting components are in their limiting positions, they work together to block and limit the multiple sheet metal blanks on the hopper 110, thus restricting the sheet metal blanks from moving further downwards along the inclined direction of the chute. This prevents multiple sheet metal blanks from sliding out of the hopper 110 simultaneously, keeping them in a preset storage position to await subsequent material handling.

[0160] Furthermore, when a single sheet blank needs to be picked up, the limiting component 121 drives multiple limiting members to simultaneously switch to the avoidance position, thereby releasing the limiting members from restricting the sheet blank. It should be noted that since multiple sheet blanks are arranged sequentially along the guide rod 111 within the hopper 110 and can slide along the chute direction under their own weight, directly releasing the limiting function of the limiting component 121 may cause multiple sheet blanks to move forward simultaneously. To avoid this, this application further provides a stop component 122.

[0161] Furthermore, a stop assembly 122 is disposed above the hopper 110 and includes a stop member. The stop assembly 122 is used to individually control the release of the sheet metal blank located at the front end within the hopper 110. Specifically, the stop assembly 122 can drive the stop member to switch between an initial position and a stopped position. When the stop member is in the initial position, it moves away from the sheet metal blank and does not interfere with the sheet metal blank within the hopper 110. When the stop member switches to the stopped position, it abuts against the area behind the sheet metal blank located at the front end, blocking subsequent sheet metal blanks and keeping them in their original positions.

[0162] In the actual material handling process, firstly, the limiting component 121 drives multiple limiting parts to switch from the limiting position to the avoidance position, so that the plate blanks in the hopper 110 are released from the overall limiting position; then, the stop component 122 drives the stop parts to switch to the stop position, so that the plate blanks at the front end can move downward, while the remaining plate blanks are kept in the limiting state under the action of the stop parts.

[0163] By combining the limiting component 121 and the stop component 122, multiple sheet blanks in the hopper 110 can be separated one by one, avoiding the problem of adjacent sheet blanks sticking together or being output at the same time, thus improving the reliability of the automatic feeding process.

[0164] Furthermore, the gripping assembly 123 is used to move the separated individual sheet blanks to the loading station. The gripping assembly includes multiple spaced-apart adsorption elements and can switch between the gripping station and the loading station under driving action.

[0165] Specifically, after the foremost sheet material is released under the combined action of the limiting component 121 and the stop component 122, the gripping component 123 drives multiple adsorption components to move to the gripping station, so that the multiple adsorption components contact the corresponding positions of the sheet material and grip the sheet material through negative pressure adsorption. Subsequently, the gripping component 123 drives the multiple adsorption components to move from the gripping station to the loading station and releases the adsorbed sheet material to the loading station for subsequent gripping and transfer by the robot arm 300.

[0166] It should be noted that the number and specific placement of the adsorption components can be adjusted according to the size, weight, and shape of the sheet material. For example, for larger or heavier sheet materials, the number of adsorption components can be increased, and multiple adsorption components can be distributed in different areas of the sheet material to improve stability during the gripping process.

[0167] Furthermore, in one specific embodiment, the limiting component 121, the stop component 122, and the gripping component 123 all employ a cylinder-driven structure. Specifically, each cylinder is connected to a moving member in its corresponding component to provide drive. Simultaneously, each moving member is connected to a corresponding limiting component, stop component, or adsorption component mounting structure via a rotating shaft, enabling the linear motion of the cylinder to be converted into the rotational motion of the corresponding component.

[0168] For example, when the cylinder in the limiting assembly 121 extends or retracts, it drives multiple limiting components to rotate synchronously through the rotating shaft, enabling the multiple limiting components to switch between the limiting position and the avoidance position; when the cylinder in the stop assembly 122 is activated, it drives the stop component to rotate to the stop position or the initial position through the rotating shaft; when the cylinder in the gripping assembly 123 is activated, it drives the adsorption component mounting structure to move through the rotating shaft, realizing the switching of the adsorption component between different positions.

[0169] By adopting a cylinder-driven method, the structure is simple and the response speed is fast, which can meet the continuous operation requirements of automated production lines. On the other hand, the cylinder has good reliability and easy maintenance, making it suitable for continuous automatic feeding environments of kitchen utensil board blanks.

[0170] In one specific implementation, the gripping component 123 is equipped with a rotary cylinder. Specifically, the rotary cylinder is connected to a rotating shaft, which is connected to multiple adsorption elements, and is used to drive the multiple adsorption elements to rotate. Driven by the rotary cylinder, the position of the sheet material is changed between the gripping station and the loading station.

[0171] In this embodiment, by setting a limiting component 121, a stop component 122, and a gripping component 123, the feeding mechanism 120 can achieve automatic separation, single-piece release, and automatic transfer of sheet metal blanks. The limiting component 121 is used to constrain multiple sheet metal blanks as a whole, the stop component 122 is used to block subsequent sheet metal blanks when releasing a single sheet metal blank, and the gripping component 123 is used to complete the gripping and output of a single sheet metal blank. These three components work together to achieve single-piece material handling control during the continuous feeding process of the hopper 110. Simultaneously, by adopting a cylinder drive combined with a rotary cylinder structure, the action response speed and structural flexibility of the feeding mechanism 120 are improved, which is beneficial for meeting the continuous production needs of the automated polishing production line for kitchen utensil sheet metal blanks.

[0172] In one specific embodiment, the robot arm 300 can be a commercially available industrial robot arm 300 product to realize the automatic transfer of sheet metal blanks between the loading station and the material tray 240. Exemplarily, the robot arm 300 includes a third frame, a lateral movement mechanism, a longitudinal movement mechanism, and an adsorption component.

[0173] The third frame provides mounting support for the lateral movement mechanism, the longitudinal movement mechanism, and the adsorption assembly. Specifically, the third frame can be positioned beside the starting end of the conveying section of the conveying mechanism, allowing the robot arm 300 to cover the loading station and the placement area of ​​the material tray 240 on the conveying section. Furthermore, both the lateral and longitudinal movement mechanisms are mounted on the third frame, and they cooperate to adjust the position of the adsorption assembly in different directions. Specifically, the lateral movement mechanism drives the adsorption assembly to move along a first horizontal direction to adjust its position relative to the loading station and the material tray 240; the longitudinal movement mechanism drives the adsorption assembly to move vertically to move it closer to or further away from the sheet material.

[0174] In actual operation, after the feeding mechanism delivers a single sheet blank to the feeding station, the longitudinal moving mechanism drives the adsorption component to descend, so that the adsorption component contacts the sheet blank and completes adsorption; the longitudinal moving mechanism drives the adsorption component to rise, so that the sheet blank is removed from the feeding station; the transverse moving mechanism then drives the adsorption component to move above the corresponding tray; finally, the longitudinal moving mechanism drives the adsorption component to descend again and releases the adsorption effect, so that the sheet blank is accurately placed in the tray.

[0175] Furthermore, the adsorption component is located at the moving end of the longitudinal moving mechanism and is used to grip the sheet material. Specifically, the adsorption component may include multiple suction cups, which are arranged according to the shape, size, and weight distribution of the sheet material. The suction cups generate adsorption force through a negative pressure generating device, thereby stably adsorbing the sheet material onto the adsorption component. Furthermore, the multiple suction cups on the adsorption component can be adaptively arranged according to the contour of the sheet material.

[0176] In one specific embodiment, to further improve the intelligence level and product quality inspection capabilities of the automated polishing production line, the automated polishing production line also includes an industrial camera and a control system. The industrial camera is located at the end of the conveyor device 200 and is used to acquire images of the polished sheet material.

[0177] Specifically, the industrial camera is fixedly mounted on the corresponding position of the conveying device 200 using a mounting bracket, so that the camera's shooting area covers the material tray 240 bearing area at the end of the conveying device 200. When the material tray 240 moves to the end of the conveying device 200 under the drive of the conveying mechanism, the sheet material on the material tray 240 enters the image acquisition range of the industrial camera, and the industrial camera can then capture images of the surface condition of the sheet material to obtain corresponding image data.

[0178] Furthermore, the industrial camera can be a line scan camera, model MV-CL042-91GC, paired with a large-area fixed-focus lens. The mounting bracket for the industrial camera can be a fixed or adjustable structure. Specifically, by adjusting the position of the mounting bracket, the relative distance and shooting angle between the industrial camera and the material tray 240 can be adjusted, enabling the industrial camera to more accurately acquire a complete surface image of the sheet metal blank. Simultaneously, by adjusting the mounting height of the industrial camera, it can be adapted to sheet metal blanks of different sizes, improving the versatility of the inspection system.

[0179] In some preferred embodiments, to improve the acquisition effect of the industrial camera on the surface features of the sheet metal blank, a suitable light source can be set at the corresponding position of the industrial camera according to the actual inspection requirements. Specifically, the light source can be set on the mounting bracket or independently set around the industrial camera to provide a stable lighting environment for the sheet metal blank on the tray 240. By supplementing the surface of the sheet metal blank with light source, the influence of ambient light changes on the image acquisition effect can be reduced, and the clarity and stability of the images acquired by the industrial camera can be improved.

[0180] It should be noted that the specific type of light source can be selected based on the material of the sheet metal blank, the requirements for polishing effect inspection, and the type of defects. For example, ring light sources, strip light sources, area light sources, or other lighting structures commonly used in industrial visual inspection can be used, without any specific restrictions.

[0181] Furthermore, the control system can determine the polishing effect based on the image features of the sheet material surface. For example, the control system can analyze the brightness distribution, texture features, scratch features, or local defect features of the sheet material surface to determine whether there are problems such as uneven polishing, residual processing marks on the surface, or local unprocessed areas.

[0182] Example 2

[0183] See Figure 5 , Figure 5 A schematic flowchart illustrating a polishing inspection method for an automated polishing production line of kitchen utensils, according to an embodiment of this application, is shown. The polishing inspection method can be executed by the aforementioned control system. The polishing inspection method includes:

[0184] Step 101: Acquire image data of the surface of the sheet metal blank captured by the industrial camera.

[0185] Specifically, when the conveying device transports the tray carrying the polished sheet blank to the detection position, the control system controls or triggers the industrial camera to acquire images to obtain image data of the corresponding sheet blank surface.

[0186] The acquired image data can include overall surface images of the sheet metal blank, or images of local areas acquired according to inspection requirements. Through the combined action of an industrial camera and its supporting light source, high-resolution and stable surface images of the sheet metal blank can be obtained, providing a data foundation for subsequent defect identification.

[0187] Step 102: Preprocess the image data to obtain a preprocessed image.

[0188] Specifically, after the control system acquires the raw image data collected by the industrial camera, it preprocesses the image data to reduce the impact of environmental factors and the acquisition process on the detection results.

[0189] In one specific embodiment, the image preprocessing process includes at least one of image enhancement, noise removal, size adjustment, and image normalization. Image enhancement improves the contrast between defective and normal areas on the surface of the sheet metal blank, making polishing defect features more prominent. Noise removal reduces noise interference. Size adjustment ensures the image size meets the input requirements of the target detection model. Image normalization unifies the parameter distribution of image data under different acquisition conditions, improving the model's detection stability.

[0190] Furthermore, to reduce the impact of color and lighting differences between different batches of sheet blanks, RGB images can be converted into grayscale images. Through grayscale processing, subsequent models can focus more on the texture changes and defect area features of the sheet blank surface.

[0191] Furthermore, when the surface image of the sheet metal blank acquired by the industrial camera is large, the control system can first perform region division processing on the image, and then preprocess the multiple sub-region images separately. For example, the original image with size W×H can be divided into multiple sub-images with size w×h.

[0192] Specifically, the image is divided into regions based on a preset cropping size, and a certain overlap is set between adjacent regions to avoid information loss due to cropping when defects are located at the image edges. Simultaneously, the position coordinates of each sub-region in the original image are recorded for subsequent location recovery from the detection results. This method can improve the efficiency of high-resolution surface defect detection while reducing the amount of input data per model. After the above processing, a preprocessed image suitable for model detection is obtained.

[0193] Step 103: Input the preprocessed image into the pre-trained target detection model and output the classification results of polishing defects and their bounding box coordinates.

[0194] Specifically, the control system inputs the preprocessed image into a pre-trained target detection model, which identifies defect regions in the surface image of the sheet metal blank. The target detection model simultaneously determines the defect category and locates the defect position, outputting the classification results of polishing defects and their corresponding bounding box coordinates.

[0195] In one specific implementation, the target detection model includes a feature extraction network, a feature fusion network, and a detection output network. The feature extraction network is used to extract texture features, edge features, and spatial features from the image; the feature fusion network is used to fuse defect features at different scales; and the detection output network is used to output the defect category and location coordinates.

[0196] In one specific implementation, the output of the target detection model can be expressed as: ,in: This represents the i-th defect category; Indicates the coordinates of the defect bounding box; This indicates the confidence level that the defect belongs to the corresponding category.

[0197] In practice, the probability of different defect categories is calculated using the Softmax function. Furthermore, to improve the detection capability of small defects, an attention mechanism can be introduced into the target detection model.

[0198] Step 104: Extract the corresponding local defect image from the preprocessed image based on the bounding box coordinates.

[0199] Specifically, the control system determines the defect region in the preprocessed image based on the bounding box coordinates output by the target detection model, and then crops this region to obtain a local defect image. By locally extracting the defect region, the influence of the normal area of ​​the sheet metal blank on the subsequent fine analysis process can be reduced, allowing the subsequent semantic segmentation model to focus on analyzing the defect region and improving pixel-level segmentation efficiency.

[0200] Furthermore, when the input image of the target detection model is a sub-image after multi-scale segmentation, the control system can perform coordinate mapping on the detected defect location based on the original coordinate information corresponding to the sub-image, thereby determining the actual location of the defect in the complete plate blank image.

[0201] For example, let the detected bounding box be: The local defect image region is: By retaining only the defect region, the amount of data processed by the subsequent semantic segmentation model can be reduced. Furthermore, to avoid losing defect edge information, the bounding box can be expanded. , Indicates the extended distance.

[0202] Step 105: Input the local defect image into the pre-trained semantic segmentation model for pixel-level feature extraction and segmentation, and output the contour information of the polishing defect.

[0203] Specifically, the control system inputs a local defect image into a pre-trained semantic segmentation model, which performs pixel-level analysis of the defect region. The semantic segmentation model determines whether each pixel in the local defect image belongs to the polishing defect region and generates a defect region mask based on the pixel classification results, thereby obtaining the complete contour information of the polishing defect. Compared to object detection models that only determine the approximate defect region through bounding boxes, the semantic segmentation model can further determine the defect edge position, enabling the control system to obtain a more accurate defect shape.

[0204] In one specific implementation, the semantic segmentation model can be constructed using a deep learning image segmentation network and trained on training samples containing pixel-level defect annotation information, enabling the model to learn the pixel differences between different defect regions and normal surfaces. By combining the object detection model with the semantic segmentation model, a "coarse localization + fine segmentation" detection approach can be formed, improving the accuracy of defect contour extraction while ensuring detection efficiency.

[0205] For example, the control system inputs a local defect image into a semantic segmentation model, which then outputs a pixel mask corresponding to the defect region. The semantic segmentation result is represented as follows: Furthermore, the defect contour can be extracted based on the pixels at the mask edge. .

[0206] Step 106: Calculate the feature parameters of the polishing defect based on the contour information, and determine the polishing quality of the plate blank based on the feature parameters and a preset threshold, and output the corresponding polishing detection result.

[0207] Specifically, the control system calculates parameters for the defect region based on the defect contour information output by the semantic segmentation model to obtain characteristic parameters that reflect the polishing quality. In one specific embodiment, the characteristic parameters include at least one of the following: defect area parameter, defect length parameter, defect width parameter, defect quantity parameter, and defect proportion parameter.

[0208] Among them, the defect area parameter can be obtained by counting the number of pixels corresponding to the defect contour; the defect length and width parameters can be obtained by analyzing the maximum size of the defect contour; and the defect proportion parameter can be calculated by the ratio between the defect area and the inspection area of ​​the plate blank.

[0209] Furthermore, the control system compares the calculated characteristic parameters with preset thresholds to determine the polishing quality of the sheet blank. For example, when the defect area is less than a preset area threshold, the defect length is less than a preset length threshold, and the number of defects is less than a preset number threshold, the current sheet blank is determined to meet the polishing quality requirements; when any characteristic parameter exceeds the corresponding preset threshold, the current sheet blank is determined to have an abnormal polishing quality.

[0210] For example, the characteristic parameters include the defect area. Defect length , Represents any two points on the outline. Indicates the distance between two points; percentage of defects. S0 represents the area of ​​the detection region.

[0211] In another specific implementation, a defect evaluation model can be established. Q represents the overall quality evaluation value; w1, w2, w3, and w4 represent their respective weights; and N represents the number of defects. The control system compares the calculated quality evaluation value Q with a preset threshold Q. .

[0212] Furthermore, the control system outputs the corresponding polishing test result based on the judgment result. When the test result is qualified, the control system can control the conveying device to continue operating, allowing the sheet material to enter the next production stage; when the test result is unqualified, the control system can output an alarm message, which may indicate that the polishing components need to be readjusted.

[0213] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. For those skilled in the art, it will be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated polishing line for kitchen utensils, characterized in that, Polishing of sheet metal blanks for kitchen utensils, the automated polishing production line includes: A feeding device includes a hopper and a feeding mechanism. The hopper carries multiple sheet blanks. The feeding mechanism is configured to grab the sheet blanks one by one from the hopper and output them to the feeding station. A conveying device, comprising a conveying mechanism and a plurality of trays for placing sheet blanks; the conveying mechanism drives the plurality of trays to move cyclically along a circular conveying path, the conveying mechanism having a conveying section moving in a first direction and a return section moving in a second direction; A robotic arm is located beside the starting end of the conveying section of the conveying mechanism, and the robotic arm is configured to move the sheet metal blanks located at the loading station one by one to the corresponding material trays. A polishing device comprising a plurality of polishing components disposed above the conveying section of the conveying mechanism, the plurality of polishing components being arranged sequentially along a first direction; the polishing components being configured to polish the surface of sheet metal blanks on the material tray of the conveying section.

2. The automated polishing production line for kitchen utensils according to claim 1, characterized in that, The tray is provided with a placement groove and a limiting part arranged around the placement groove; the placement groove is adapted to the plate blank, and the cross-sectional profile of the placement groove is larger than the outer profile of the plate blank. The height of the limiting part is less than the thickness of the plate blank, so that the upper surface of the plate blank placed in the placement groove is higher than the upper end surface of the limiting part.

3. The automated polishing production line for kitchen utensils according to claim 2, characterized in that, The bottom surface of the placement groove is provided with an anti-slip layer, which is in contact with the lower surface of the sheet material, thus restricting the relative sliding of the sheet material within the placement groove.

4. The automated polishing production line for kitchen utensils according to claim 1, characterized in that, The conveying mechanism includes: A transmission chain, the transmission chain having a ring structure, and the conveying device being provided with a drive mechanism for driving the transmission chain to rotate; Two linear guide rails are symmetrically arranged on both sides of the conveying section, forming a conveying channel between the two linear guide rails for the transmission chain to pass through; the ends of the linear guide rails are provided with inclined guide portions located at the starting end of the conveying section. Multiple trolleys are sequentially and spaced apart from the transmission chain, and the material tray is bolted to the top surface of the trolleys; each trolley has a wheel set on both sides that rolls into a corresponding linear guide rail, and the wheel set includes multiple vertical rollers and multiple horizontal rollers; When the transmission chain drives the trolley into the conveying section, the vertical roller and the horizontal roller are guided by the inclined guide and cut into the corresponding linear guide rail; within the conveying section, the vertical roller rolls with the top surface of the linear guide rail for vertical bearing; the horizontal roller rolls with the inner side surface of the linear guide rail for horizontal limiting.

5. An automated polishing production line for kitchen utensils according to claim 4, characterized in that: The trolley includes a trolley body, which has an I-shaped structure; the material tray is bolted to the trolley body, and a limit pad is provided between the trolley body and the material tray; The wheel set includes four vertical rollers and four horizontal rollers; two vertical rollers are connected at intervals on both sides of the outer wall of the trolley body along the front-back direction; two horizontal rollers are connected at intervals on both sides of the bottom surface of the trolley body along the front-back direction.

6. An automated polishing production line for kitchen utensils according to claim 1, characterized in that: The polishing apparatus includes multiple polishing components, including two coarse polishing components, two belt polishing components, and at least two fine polishing components arranged sequentially along the first direction; Each of the coarse polishing components is provided with a first polishing wheel; each of the belt polishing components is provided with an annular polishing belt; and each of the fine polishing components is provided with a third polishing wheel.

7. An automated polishing production line for kitchen utensils according to claim 1, characterized in that, The feeding mechanism includes: A limiting component is provided at the discharge end of the hopper. The limiting component includes multiple limiting elements, and the limiting component drives the multiple limiting elements to switch between an avoidance position and a limiting position. A stop assembly is disposed above the hopper; the stop assembly includes a stop member, and the stop assembly drives the stop member to switch between an initial position and a stop position; A gripping component, comprising multiple adsorption elements, wherein the gripping component drives the multiple adsorption elements to switch between a gripping station and a loading station. When multiple limiting members are in the limiting position, the multiple limiting members together limit the multiple sheet blanks on the hopper; When multiple limiting members switch to the avoidance position and the stop member switches to the stop position, the plate blank located at the foremost position on the hopper is released; the gripping component drives multiple adsorption members to switch to the gripping station and adsorb and grip the plate blank located at the foremost position.

8. An automated polishing production line for kitchen utensils according to claim 7, characterized in that, The hopper has an inclined chute, and the chute is provided with a plurality of guide rods extending along its inclined direction; a plurality of the sheet blanks are arranged sequentially along the guide rods and can slide downward along the inclined direction of the chute.

9. The automated polishing production line for kitchen utensils according to any one of claims 1 to 8, characterized in that, Also includes: An industrial camera is mounted on the end of the conveyor belt via a mounting bracket. The industrial camera is used to collect image data of the sheet material blank polished by the polishing device on the material tray. A control system connected to the industrial camera.

10. A polishing inspection method for an automated polishing production line of kitchen utensils according to claim 9, characterized in that, Includes the following steps: Acquire image data of the surface of the sheet metal blank captured by the industrial camera; The image data is preprocessed to obtain a preprocessed image; The preprocessed image is input into a pre-trained target detection model, which outputs the classification results of polishing defects and their bounding box coordinates. Based on the bounding box coordinates, the corresponding local defect image is extracted from the preprocessed image; The local defect image is input into a pre-trained semantic segmentation model for pixel-level feature extraction and segmentation, and the contour information of the polishing defect is output. The feature parameters of the polishing defects are calculated based on the contour information, and the polishing quality of the plate blank is determined by comparing the feature parameters with a preset threshold, and the corresponding polishing detection result is output.

Images