Tray assembly, positioning assembly, transfer device and refrigerator storage component intelligent production line

Abstract

The application belongs to the technical field of refrigerator component injection molding product production, and provides a tray assembly, a positioning assembly, a transfer device and a refrigerator storage component intelligent production line, wherein the tray assembly comprises a base plate, a tray, a pushing device and a first collecting device; the base plate is provided with a positioning chip, a first mark, a battery and three limiting columns; the tray is arranged on the base plate; the three limiting columns are arranged around adjacent two sides of the tray; the pushing device is arranged on the base plate and is arranged opposite to at least one limiting column with the tray as the center; the pushing device comprises a top head and a driving mechanism; the driving mechanism drives the top head to push the workpiece, so that the workpiece is clamped between the top head and the limiting column; and the first collecting device is used for image collection of a second mark on the workpiece. The application solves the problem that the existing production process cannot realize physical layout and tool posture positioning of the production line when the product specification is switched, and it is difficult to meet the flexible mixed-line production demand.

Description

Technical Field

[0001] This application belongs to the field of refrigerator component injection molding production technology, and particularly relates to a tray assembly, positioning assembly, transfer device and intelligent production line for refrigerator storage components. Background Technology

[0002] Traditional injection molding production processes for refrigerator storage components typically rely on manual labor or semi-automatic equipment. These processes are fragmented, material handling depends on overhead cranes or manual forklifts, production data is isolated, and quality control is primarily based on manual sampling. This approach suffers from low production efficiency, poor product consistency, opaque production information, inability to achieve individual piece traceability, high dependence on manual labor, and poor production flexibility. With the development of Industry 4.0 and smart manufacturing, the market demand for high-quality, customized home appliance components is increasing, urgently requiring a highly integrated, data-driven, and fully controllable intelligent solution. However, existing solutions still have significant limitations in meeting the high-quality, flexible manufacturing needs of large, complex, thin-walled plastic parts such as refrigerator drawers, failing to systematically address the following core issues:

[0003] On the one hand, the lack of an automatic restructuring mechanism for production line layout and cycle time during product specification switching makes it difficult to meet the needs of flexible manufacturing. On the other hand, the lack of technical means to bind and link all elements of data, such as raw material batches, module process curves, online processing data, test results, and packaging information, with the unique identifier of each individual product makes it impossible to build a digital twin that spans the entire product lifecycle, thus hindering the accurate traceability and continuous optimization of quality issues.

[0004] It is evident that the current injection molding manufacturing process for refrigerator storage components still has significant technological shortcomings in terms of intelligence, flexibility, and traceability. Summary of the Invention

[0005] The purpose of this application is to provide an intelligent production line for pallet components, positioning components, transfer devices, and refrigerator storage components, which solves the technical problem that existing production processes cannot achieve rapid and automatic reconstruction of the physical layout of the production line, tooling posture positioning, and cycle time when switching product specifications, making it difficult to meet the requirements of flexible mixed-line production and accurate traceability.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] In a first aspect, embodiments of this application provide a pallet assembly for fixing the posture and supporting rectangular workpieces of different specifications, the pallet assembly comprising:

[0008] The substrate is provided with a positioning chip, a first identifier, a battery, and at least three limiting posts;

[0009] A tray is disposed on the substrate and is used to place workpieces; at least three limiting posts surround adjacent sides of the tray.

[0010] A pushing device is disposed on the substrate and is arranged opposite to at least one of the limiting posts with the material tray as the center; the pushing device includes a push head and a driving mechanism, the driving mechanism is electrically connected to the battery, and the driving mechanism is used to drive the push head to push the workpiece placed on the material tray, so that the workpiece is clamped between the push head and the limiting post.

[0011] A first acquisition device is disposed on the substrate and electrically connected to the battery. The acquisition end of the first acquisition device faces the workpiece on the tray. The first acquisition device is used to acquire an image of the second mark on the workpiece and upload it to the main control mechanism of the production line to associate the first mark with the second mark.

[0012] The above technical solution has the following advantages or beneficial effects:

[0013] The system uses a first data acquisition device to collect a second identifier on the workpiece, and then binds this second identifier to a first identifier on the pallet assembly. Subsequent processing steps only need to scan the first identifier on the pallet assembly to obtain the complete process information for the corresponding workpiece. Specifically, after acquiring the information, it can be uploaded to all workstations, along with the manufacturing parameters and workpiece product information corresponding to that workstation. Using the pallet assembly facilitates the positioning and processing of workpieces of different specifications at various processing steps, while simultaneously achieving physical binding and data association between individual products and the carrier, solving the problem that previous traceability methods were limited to the batch level.

[0014] An improvement is made to the drive mechanism, which includes an air supply device and a cylinder. The air supply device has an air storage container and is connected to the cylinder via a pipe. The output end of the cylinder is connected to the mandrel, and the cylinder drives the mandrel to move linearly.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] Using a servo cylinder as the drive mechanism, its stroke and speed are programmable and controllable, enabling automatic adjustment of the mandrel's reciprocating stroke according to different workpiece specifications. When the product model is changed, the first acquisition device scans and the system identifies the second mark on the workpiece to retrieve the corresponding clamping parameters, thereby precisely controlling the mandrel's extension stroke and clamping force without the need for manual tooling changes or manual adjustment of positioning elements.

[0017] In one embodiment, the top end is provided with an end cap made of a flexible material.

[0018] The above technical solution has the following advantages or beneficial effects:

[0019] It helps to adapt to minute shape differences at the corners of the workpiece and prevents scratches on the surface of the workpiece, effectively improving the protection of the workpiece.

[0020] The structure of the material tray is improved, the material tray is provided with a rotating shaft, the base plate is provided with a shaft hole for mounting the rotating shaft, and the shaft hole of the base plate is provided with a bearing that is sleeved with the rotating shaft.

[0021] The above technical solution has the following advantages or beneficial effects:

[0022] The material tray is given a degree of freedom of rotation. When rectangular workpieces of different specifications are placed on the material tray, the orientation of the workpieces can be finely adjusted by rotating the material tray to form the best clamping layout with the limiting column and the pushing device.

[0023] In one embodiment, the surface of the tray is provided with an anti-slip pad.

[0024] The above technical solution has the following advantages or beneficial effects:

[0025] It helps prevent the workpiece from sliding or rotating on the tray.

[0026] The structure of the first data acquisition device is improved. The first data acquisition device includes an identification scanning device and a wireless communication module, and the wireless communication module is used to upload the acquired information.

[0027] The above technical solution has the following advantages or beneficial effects:

[0028] It enables automatic identification and instant uploading of workpiece markings, eliminating the need for manual scanning or data entry, and provides a reliable data entry point for binding and associating the second marking of the workpiece with the first marking of the pallet assembly.

[0029] Secondly, embodiments of this application provide a positioning component for positioning the tray assembly, the positioning component comprising:

[0030] The stop device includes a first driver and a stop for blocking the forward movement of the pallet assembly. The stop is disposed on the output end of the first driver, and the first driver is used to drive the stop to move up and down to emerge or submerge on the conveyor belt.

[0031] The lifting device includes a second drive and a top platform for lifting the pallet assembly, the top platform being disposed on the output end of the second drive, the second drive being used to drive the top platform to move up and down to rise or fall on the conveyor belt.

[0032] The above technical solution has the following advantages or beneficial effects:

[0033] By using a stop device and a lifting device, the pallet assembly is positioned in the workstation (horizontal stop + vertical lifting) to ensure the positional accuracy of the workpiece when the subsequent production unit operates on it.

[0034] In one embodiment, the positioning component further includes a base for supporting the stop device and the lifting device, the stop device and the lifting device being respectively disposed on the base.

[0035] The above technical solution has the following advantages or beneficial effects:

[0036] The base integrates the stop device and the lifting device into a single module, allowing the positioning component to be quickly installed, disassembled, or moved as an independent unit.

[0037] In one embodiment, two lifting devices are provided, and the two lifting devices are arranged sequentially along the length direction of the base; when the stop device stops the pallet assembly, the two lifting devices cooperate with the position of the base plate in the pallet assembly.

[0038] The above technical solution has the following advantages or beneficial effects:

[0039] The two lifting devices can simultaneously lift the pallet assembly from the front and rear ends respectively, effectively ensuring the stability of the pallet assembly.

[0040] Thirdly, embodiments of this application provide a transfer device for transferring the position of the pallet assembly, the transfer device comprising:

[0041] The support frame is equipped with a track;

[0042] A robotic arm, mounted on a track of the support and extending downward, is used to grip or place the tray assembly;

[0043] A third actuator, disposed on the track of the support, is used to drive the robotic arm to move along the track.

[0044] The above technical solution has the following advantages or beneficial effects:

[0045] The use of transfer devices enables fully automated handling of pallet components, replacing the traditional material handling methods that rely on overhead cranes or manual forklifts, effectively improving production continuity and operational consistency.

[0046] In one embodiment, the third driver includes a motor, a gear set, and a rack, with the output end of the motor, the gear set, and the rack sequentially connected, and the rack connected to the robotic arm; the motor drives the rack to move linearly through the gear set.

[0047] The above technical solution has the following advantages or beneficial effects:

[0048] By using a motor and a transmission chain consisting of a gear set and a rack, rotary motion can be precisely converted into linear motion, thereby driving the robot to move linearly along the track.

[0049] The structure of the robotic arm is improved, the robotic arm includes a fourth driver and a gripper, the gripper is disposed on the output end of the fourth driver and is capable of gripping the substrate in the tray assembly from both sides; the fourth driver is used to drive the gripper to move up and down.

[0050] The above technical solution has the following advantages or beneficial effects:

[0051] The grippers hold the substrate in the tray assembly from both sides, thus forming a symmetrical clamping force distribution. This ensures that the tray assembly remains horizontal and stable during transfer, avoiding the risk of tilting, shaking, or falling off due to clamping from one side.

[0052] In one embodiment, the gripper includes a fifth actuator and a pair of linkages, the pair of linkages being symmetrically arranged with respect to the fifth actuator. One end of the pair of linkages is a clamping end, and the other end is connected via a connecting bar shaft. The output end of the fifth actuator is connected to the connecting bar and is used to drive the connecting bar to move outward or retract, so that the clamping ends of the pair of linkages move closer to or further apart from each other with the lever point as the axis.

[0053] The above technical solution has the following advantages or beneficial effects:

[0054] The pair of linkage frames are symmetrically arranged with a sixth actuator, forming a linkage structure through the connecting bar pivot. When the sixth actuator drives the connecting bar to move outward or retract, the lever principle is used to make the clamping ends of the pair of linkage frames move closer or further apart synchronously, realizing the picking and placing operation of the pallet assembly.

[0055] In one embodiment, each of the clamping ends of the pair of linkage frames is provided with a clamping plate, which is used to make surface contact with the side of the substrate in the tray assembly.

[0056] The above technical solution has the following advantages or beneficial effects:

[0057] The clamping plate forms a surface contact with the base plate side of the pallet assembly. Compared with the traditional point contact or line contact clamping method, it is beneficial to increase the clamping contact area and ensure that the pallet assembly maintains a stable posture without shaking or deflection during the transfer process.

[0058] Fourthly, this application embodiment also provides an intelligent production line for refrigerator storage components, including a main control mechanism, a logistics transfer mechanism, and a production execution mechanism. The main control mechanism, the logistics transfer mechanism, and the production execution mechanism are connected through an industrial network and a data bus to realize control commands and information interaction.

[0059] The main control unit is used to receive, process, and analyze data from the production execution unit and the logistics transfer unit, and execute corresponding control commands;

[0060] The production execution mechanism includes at least:

[0061] The tray assembly is used to carry the workpiece. The first acquisition device acquires a second identifier on the workpiece, which is then used by the main control mechanism to associate the second identifier on the workpiece with the first identifier on the tray assembly.

[0062] The positioning component is used to position the pallet assembly in each production unit of the production execution mechanism.

[0063] The logistics transfer mechanism includes multiple handling units, of which at least the aforementioned transfer device is included. The logistics transfer mechanism is used to transfer the pallet assembly within the production execution mechanism.

[0064] The above technical solution has the following advantages or beneficial effects:

[0065] Using pallet assemblies to carry workpieces as a transfer carrier between various production processes facilitates the positioning and processing of workpieces of different specifications at each stage, while also achieving physical binding and data association between individual products and carriers. Positioning components and transfer devices, working in conjunction with the structure of the pallet assembly, enable positioning and location transfer, effectively improving production line flexibility.

[0066] The structure of the production execution mechanism is improved, and the production execution mechanism further includes:

[0067] An injection molding unit includes an injection molding machine and molds for matching different workpieces, wherein the molds are mounted on the injection molding machine;

[0068] The coding unit includes a coding device for generating the second mark on the workpiece;

[0069] The finishing unit includes a machine tool for finishing workpieces;

[0070] The detection unit includes an image acquisition device, which is used to perform visual comparison detection based on the workpiece image acquired by the image acquisition device.

[0071] A cleaning unit includes a cleaning device for cleaning workpieces;

[0072] The sorting unit includes multiple robotic arms or multiple transfer devices, which are used to sort the workpieces separately.

[0073] Packaging unit, used for packaging workpieces;

[0074] The pallet assembly carries the workpieces between the trimming unit, the inspection unit, the cleaning unit, the sorting unit, and the packaging unit.

[0075] Each of the trimming unit, the detection unit, the cleaning unit, the sorting unit, and the packaging unit is equipped with a second data acquisition device for collecting the first identifier on the pallet assembly. The second data acquisition device is electrically connected to the main control mechanism via a wired connection or a wireless communication module.

[0076] The above technical solution has the following advantages or beneficial effects:

[0077] The system integrates a complete set of processes, including injection molding, coding, trimming, inspection, cleaning, sorting, and packaging. Each unit carries workpieces via pallet assemblies, and automatic transfer between processes is achieved through a transfer device. This structure forms a continuous automated production chain from raw materials to finished products, eliminating the breakpoints in traditional solutions where processes are scattered and material transfer relies on manual labor, effectively improving production efficiency and product consistency.

[0078] The structure of the mold is improved. The mold includes a fixed mold and a moving mold. The fixed mold is equipped with a first temperature sensor group, which is used to detect the temperature of the cooling water flow in the cooling pipes on the fixed mold. The moving mold is equipped with a second temperature sensor group, which is used to detect the temperature of the cooling water flow in the cooling pipes on the moving mold.

[0079] The above technical solution has the following advantages or beneficial effects:

[0080] The first temperature sensor group and the second temperature sensor group are set at the key monitoring points of the cooling pipe circuits of the fixed mold and the moving mold, respectively, thus forming a multi-point, multi-loop temperature monitoring system. This enables accurate perception of the cooling status and uniformity of the cavity and melt, solving the problem that the traditional solution relies on monitoring only a single temperature point and cannot fully grasp the temperature distribution of the cavity.

[0081] In one embodiment, a pressure sensor is also provided inside the cavity of the mold, which is used to monitor the pressure change inside the cavity during the injection filling and holding pressure stages; the first temperature sensor group, the second temperature sensor group, and the pressure sensor constitute a full-sensory network module.

[0082] The above technical solution has the following advantages or beneficial effects:

[0083] During the holding pressure stage, the system can use the real-time reading of the cavity pressure sensor as a feedback signal to dynamically adjust the holding pressure output of the injection molding machine, forming a pressure closed-loop control. This ensures that material shrinkage can be accurately compensated for in each molding process, fundamentally eliminating shrinkage marks and stabilizing the weight and size of the product, which helps improve product consistency.

[0084] In one embodiment, the mold has at least two cavities, and each cavity is provided with the pressure sensor.

[0085] The above technical solution has the following advantages or beneficial effects:

[0086] Multi-cavity molds are beneficial for mass production of workpieces. Pressure sensors are installed in each cavity of the mold to independently monitor the pressure change curves of each cavity during the injection filling and holding pressure stages. This ensures that the molding process of each cavity can be independently monitored, thereby improving the consistency of each product in the multi-cavity mold.

[0087] The structure of the packaging unit is improved. The packaging unit includes a film-coating device, a box-insertion device, a labeling device, and a quality inspection device. The film-coating device is used to apply a protective film to the workpiece. The box-insertion device is used to insert multiple workpieces into a packaging box. The labeling device is used to print and affix labels to the packaging box of the workpiece. The quality inspection device is used to scan and re-inspect the appearance of the packaged workpiece or the labels.

[0088] The above technical solution has the following advantages or beneficial effects:

[0089] The packaging unit integrates a film-coating device, a box-packing device, a labeling device, and a quality inspection device, forming a fully automated packaging production line from workpiece protection, boxing, coding to quality inspection, effectively improving packaging efficiency and operational consistency.

[0090] The structure of the sorting unit is improved, and the sorting unit includes a first robotic arm or a first transfer device. The first robotic arm or the first transfer device is disposed on the detection unit and is used to remove and divert workpieces that fail the detection.

[0091] The above technical solution has the following advantages or beneficial effects:

[0092] It enables automatic sorting based on online detection results, replacing the traditional slow mode of manual sampling followed by sorting, and solving the problems of low efficiency and error-proneness of manual sorting.

[0093] In one embodiment, the sorting unit further includes a second robotic arm or a second transfer device, which is disposed between the cleaning unit and the packaging unit for diverting workpieces to the packaging unit or other final assembly processes.

[0094] The above technical solution has the following advantages or beneficial effects:

[0095] This system enables dynamic path selection based on production plans, allowing the same production line to flexibly produce finished products or in-process goods according to order demands. This solves the problem of traditional solutions having a single production line path and being unable to adapt to multiple order types. Specifically, based on the overall production line plan, the main control unit can determine the flow of products in production. On the one hand, they can be transferred to the overall production line; on the other hand, they can be transferred to the packaging line for storage of original parts.

[0096] In one embodiment, the sorting unit further includes a third robotic arm or a third transfer device, which is disposed in the packaging unit for removing and diverting workpieces that are not packaged properly.

[0097] The above technical solution has the following advantages or beneficial effects:

[0098] It achieves full inspection and automatic sorting of packaging quality, replacing the traditional manual sampling inspection mode, solving the problems of low coverage, high missed inspection rate and sorting lag in manual sampling inspection, and ensuring the packaging quality of products leaving the factory.

[0099] The structure of the logistics transfer mechanism is improved, and the logistics transfer mechanism further includes a roller conveyor belt, which is disposed between the trimming unit, the detection unit, the cleaning unit, the sorting unit and the packaging unit, and the pallet assembly is movable on the roller conveyor belt.

[0100] The above technical solution has the following advantages or beneficial effects:

[0101] The pallet assembly allows workpieces to flow automatically on the roller conveyor belt, replacing the segmented transfer that relies on overhead cranes or manual forklifts in the traditional solution. This eliminates material breakpoints between processes and helps improve production continuity and efficiency.

[0102] The beneficial effects of the tray assembly, positioning assembly, transfer device, and intelligent production line for refrigerator storage components provided in this application are as follows: Compared with the prior art, the tray assembly provided in this application, through the cooperative structure of the limiting post and the pushing device, allows the pushing device to automatically adjust the top stroke according to rectangular workpieces of different specifications (such as refrigerator drawers), clamping the workpiece between the top and the limiting post to complete the posture locking. This structure can adapt to the posture fixing of workpieces of different sizes without changing tooling or manually adjusting the positioning elements, solving the problems of slow tooling adaptation and cumbersome posture positioning adjustment when switching product models in traditional solutions.

[0103] The first data acquisition device collects a second identifier on the workpiece and binds it to a first identifier on the pallet assembly. Subsequently, scanning the first identifier on the pallet is sufficient to obtain the complete process information for the corresponding workpiece. This structure achieves physical binding and data association between a single product and its carrier, providing a foundation for building a digital twin of the entire product lifecycle and solving the problem that previous traceability methods were limited to the batch level.

[0104] The intelligent production line for refrigerator storage components disclosed in this application utilizes a tray assembly to carry the workpieces as a transfer carrier in various production processes. This facilitates the positioning and processing of workpieces of different specifications in various production units, while simultaneously achieving physical binding and data association between individual products and carriers. Specifically, the positioning component and the transfer device of this application, in conjunction with the structure of the tray assembly, can achieve positioning and location transfer, effectively improving the flexibility of the production line.

[0105] The intelligent production line for refrigerator storage components disclosed in this application integrates complete processes such as injection molding, coding, trimming, inspection, cleaning, sorting, and packaging. Each production unit carries workpieces via pallet assemblies, and automatic transfer between processes is achieved through a transfer device. This system forms a continuous automated production chain from raw materials to finished products, eliminating the breakpoints in traditional solutions where processes are scattered and material transfer relies on manual labor, effectively improving production efficiency and product consistency. Attached Figure Description

[0106] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0107] Figure 1This is a schematic diagram of the overall structure of the intelligent production line for refrigerator storage components provided in this application embodiment;

[0108] Figure 2 A three-dimensional structural diagram of the tray assembly provided in the embodiments of this application. Figure 1 ;

[0109] Figure 3 A three-dimensional structural diagram of the tray assembly provided in the embodiments of this application. Figure 2 ;

[0110] Figure 4 This is a top view of the tray assembly provided in an embodiment of this application;

[0111] Figure 5 A three-dimensional structural schematic diagram of the workpiece provided in the embodiments of this application;

[0112] Figure 6 Exploded view of the tray assembly provided in the embodiments of this application Figure 1 ;

[0113] Figure 7 Exploded view of the tray assembly provided in the embodiments of this application Figure 2 ;

[0114] Figure 8 A schematic diagram of the positioning component provided in this application embodiment, mounted on a conveyor belt. Figure 1 ;

[0115] Figure 9 A schematic diagram of the positioning component provided in this application embodiment, mounted on a conveyor belt. Figure 2 ;

[0116] Figure 10 A three-dimensional structural diagram of the positioning component provided in the embodiments of this application;

[0117] Figure 11 Schematic diagram of the three-dimensional structure of the transfer device provided in the embodiments of this application Figure 1 ;

[0118] Figure 12 Schematic diagram of the three-dimensional structure of the transfer device provided in the embodiments of this application Figure 2 ;

[0119] Figure 13 A three-dimensional structural diagram of the robotic arm provided in an embodiment of this application;

[0120] Figure 14 A schematic diagram of the structure of the production execution mechanism provided in the embodiments of this application;

[0121] Figure 15 This is a schematic diagram of the structure of the injection molding unit provided in the embodiments of this application;

[0122] Figure 16 This is a schematic diagram of the structure of an injection molding machine provided in an embodiment of this application;

[0123] Figure 17 This is a schematic diagram of a partial internal structure of an injection molding machine provided in an embodiment of this application;

[0124] Figure 18 for Figure 17 A magnified structural diagram of part A in the diagram;

[0125] Figure 19 This is a schematic diagram of the mold structure provided in an embodiment of this application;

[0126] Figure 20 Schematic diagram of the internal structure of the mold provided in the embodiments of this application Figure 1 ;

[0127] Figure 21 A schematic diagram of the three-dimensional structure of the mold provided in the embodiments of this application. Figure 1 ;

[0128] Figure 22 A schematic diagram of the three-dimensional structure of the mold provided in the embodiments of this application. Figure 2 ;

[0129] Figure 23 Schematic diagram of the internal structure of the mold provided in the embodiments of this application Figure 2 ;

[0130] Figure 24 This is a schematic diagram of the injection molding cycle flow provided in the embodiments of this application;

[0131] Figure 25 This is a schematic diagram of the structure of the coding unit provided in the embodiments of this application;

[0132] Figure 26 This is a schematic diagram of the structure of the trimming unit provided in an embodiment of this application;

[0133] Figure 27 This is a schematic diagram of the structure of the detection unit provided in the embodiments of this application;

[0134] Figure 28 This is a schematic diagram of the structure of the cleaning unit provided in the embodiments of this application;

[0135] Figure 29 This is a schematic diagram of the structure of the second sorting unit provided in an embodiment of this application;

[0136] Figure 30 This is a schematic diagram of the structure of the packaging unit provided in an embodiment of this application;

[0137] Figure 31This is a schematic diagram of the structure of the storage area provided in an embodiment of this application.

[0138] The following are the labeling elements in the figure:

[0139] 100 - Injection molding unit; 101 - Injection molding machine; 102 - Loading robot; 103 - Raw material transport AGV; 104 - Picking robot;

[0140] 51-Injection molding machine feed port; 52-Worm gear extrusion drive system; 53-Mold drying equipment; 54-Discharge port; 55-Discharge buffer transfer platform; 56-Mold cleaning system;

[0141] 61-Spiral injection head; 62-Mold closing and opening guide rod; 63-Second hydraulic cylinder piston rod; 64-Second hydraulic cylinder; 65-Moving mold opening drive linkage; 66-First hydraulic cylinder piston rod; 67-First hydraulic cylinder; 68-Piston double bushing; 69-Mold ejector rod; 70-T-type connecting bolt; 71-Tension spring; 72-Exhaust pipe; 73-Guide rail; 74-Angled ejector mechanism base; 75-Angled ejector rod; 76-Mold block;

[0142] 200 - Coding unit; 201 - Coding device; 202 - Handling robot;

[0143] 300 - Dressing unit; 301 - Machine tool;

[0144] 400 - Inspection Unit; 401 - Quality Inspection Equipment Robot; 402 - First Sorting Line; 403 - First Offline Robot; 404 - AGV for Transporting Defective Products;

[0145] 500 - Cleaning unit; 501 - Cleaning device;

[0146] 600 - Sorting unit; 601 - Robotic arm; 602 - Sorting and identification robot; 603 - Second sorting line; 604 - Second off-line robot; 605 - Sorting AGV;

[0147] 700 - Packaging Unit; 701 - Laminating Device; 702 - Boxing Device; 703 - Identification Device; 704 - Quality Inspection Device; 705 - Sorting Line ③; 706 - AGV for Transporting Non-conforming Products; 707 - Packaging Offline Robot; 708 - Packaging Transport AGV;

[0148] 800 - Conveyor Belt;

[0149] 900 - Warehouse Area; 901 - Raw Material Automated Storage System (AS / RS); 902 - Mold Automated Storage System (AS / RS); 903 - Injection Molded Product AS / RS; 904 - Intelligent Pallet AS / RS;

[0150] 1-Tray assembly; 10-First identifier; 11-Base plate; 111-Shaft hole; 112-Bearing; 12-Plate; 121-Rotating shaft; 13-Pushing device; 131-Push head; 132-Drive mechanism; 1321-Air supply device; 1322-Cylinder;

[0151] 14-First data acquisition device; 141-Identification scanning device; 15-Limiting post; 16-Second identification mark;

[0152] 2-Positioning component; 21-Stop device; 211-First driver; 212-Stop block; 22-Lifting device; 221-Second driver; 222-Top platform; 23-Base;

[0153] 3-Transfer device; 31-Support; 311-Rail; 32-Robot; 321-Fourth actuator;

[0154] 322-Gripper; 3221-Fifth actuator; 3222-Linkage frame; 3223-Connecting bar; 3224-Clamping plate; 33-Third actuator;

[0155] 4-Mold; 41-Fixed mold; 411-First temperature sensor group; 42-Moving mold; 421-Second temperature sensor group; 43-Cavity; 431-Pressure sensor; 44-Cooling pipe. Detailed Implementation

[0156] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0157] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0158] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0159] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0160] This application provides a novel intelligent production line for tray components, positioning components, transfer devices, and refrigerator storage parts. It achieves fully automated, information-based, and intelligent production and sorting from raw materials to qualified products. This solves the problem that existing production processes cannot quickly and automatically reconfigure the physical layout of the production line, tooling posture positioning, and cycle time when product specifications change, making it difficult to meet the needs of flexible mixed-line production and precise traceability. The refrigerator drawer is used as an example of a refrigerator storage part in the following detailed description.

[0161] Refrigerator drawers are generally made of plastic. For these products, the requirements are usually that the product is transparent, lightweight, and has a high degree of surface roughness, without any burrs or scratches.

[0162] Please refer to Figure 1 This application provides an intelligent production line for refrigerator storage components, which includes a main control mechanism, a logistics transfer mechanism, and a production execution mechanism. The main control mechanism, the logistics transfer mechanism, and the production execution mechanism are connected through an industrial network and a data bus to realize control commands and information interaction.

[0163] This main control unit is used to receive, process, and analyze data from production execution units and logistics transfer units, and to execute corresponding control commands.

[0164] The production execution mechanism includes at least the pallet assembly and positioning assembly provided in the embodiments of this application. The pallet assembly is used to carry the workpiece and serves as a carrier for the workpiece in subsequent production processes. The positioning assembly is used to position the pallet assembly within each production unit of the production execution mechanism.

[0165] The logistics transfer mechanism includes multiple handling units, including at least one transfer device, and is used to transfer pallet assemblies within a production execution mechanism.

[0166] For the specific structure of the tray assembly, please refer to the embodiments in this application. Figure 2 , Figure 3 and Figure 4 The tray assembly 1 is used to fix the posture and support rectangular workpieces of different specifications (such as refrigerator drawers in this embodiment). The tray assembly 1 includes a base plate 11, a material tray 12, a pushing device 13, and a first collection device 14.

[0167] The substrate 11 is provided with a positioning chip (not shown), a first identifier 10, a battery (not shown) and at least three limiting posts 15.

[0168] The tray 12 is disposed on the substrate 11 and is used to place workpieces. At least three limiting posts 15 surround the adjacent sides of the tray 12.

[0169] The pushing device 13 is disposed on the base plate 11 and is arranged opposite to at least one limiting post 15 with the material tray 12 as the center. The pushing device 13 includes a push head 131 and a driving mechanism 132. The driving mechanism 132 is electrically connected to a battery. The driving mechanism 132 is used to drive the push head 131 to push the workpiece placed on the material tray 12, so that the workpiece is clamped between the push head 131 and the limiting post 15, thereby locking the posture of the workpiece on the material tray 12.

[0170] The first acquisition device 14 is disposed on the substrate 11 and electrically connected to the battery. The acquisition end of the first acquisition device 14 faces the workpiece on the tray 12. The first acquisition device 14 is used to acquire images of the second mark 16 on the workpiece, such as... Figure 5 As shown, the first identifier 10 and the second identifier 16 are associated by the main control unit of the production line. The first identifier 10 and the second identifier 16 can be understood as graphic codes printed on the workpiece and the substrate 11.

[0171] Thus, the first acquisition device 14 acquires the second identifier 16 on the workpiece, which is then used by the main control mechanism to associate the second identifier 16 on the workpiece with the first identifier 10 on the tray assembly 1. Subsequently, only the first identifier 10 on the tray assembly 1 needs to be scanned to track the flow and status of the tray assembly 1 and the corresponding workpiece in real time, which is beneficial for monitoring the manufacturing process of a single product. Each tray assembly 1's base plate 11 is equipped with an independent battery, which can power the drive mechanism 132 and the first acquisition device 14 to enable them to operate normally.

[0172] Compared with the prior art, the pallet assembly 1 provided in this application embodiment, through the cooperation structure of the limiting post 15 and the pushing device 13, allows the pushing device 13 to automatically adjust the stroke of the top head 131 according to the rectangular workpieces of different specifications (such as refrigerator drawers), clamping the workpiece between the top head 131 and the limiting post 15, thus completing the posture locking. This structure can adapt to the posture fixing of workpieces of different sizes without changing tooling or manually adjusting positioning elements, solving the problems of slow tooling adaptation and cumbersome posture positioning adjustment when switching product models in traditional solutions, and effectively improving the flexibility of the production line.

[0173] The first acquisition device 14 collects the second identifier 16 on the workpiece, allowing the system to bind and associate the second identifier 16 with the first identifier 10 on the pallet assembly 1. Subsequently, only the first identifier 10 on the pallet needs to be scanned to obtain the full-process information of the corresponding workpiece. The pallet assembly 1 facilitates the positioning and processing of workpieces of different specifications at various processing steps, and at the same time realizes the physical binding and data association between a single product and the carrier, providing a foundation for building a digital twin of the entire product lifecycle and solving the problem that the original traceability was limited to the batch level.

[0174] Furthermore, the positioning chip can be used to record the flow path and time nodes of tray assembly 1. Combined with the association of the first identifier 10 and the second identifier 16, data such as raw material batches, process parameters, and test results can be uniquely bound to individual products, forming a complete data chain throughout the entire manufacturing process. This facilitates the accurate location of quality problems and the determination of responsibility. All production stations are equipped with barcode scanning information transmission devices. After each station completes its work, the corresponding manufacturing parameters and non-conforming (NG) data are transmitted by scanning the first identifier 10 on the tray assembly 1. Finally, the data is encoded in the data center, stored, printed, and affixed to the product's outer packaging for data quality traceability.

[0175] The drive mechanism 132 on pallet assembly 1 includes, but is not limited to, the following forms:

[0176] In one embodiment of this application, please refer to the following: Figure 3 and Figure 4 The drive mechanism 132 includes an air supply device 1321 and a cylinder 1322. The air supply device 1321 has an air storage container and is connected to the cylinder 1322 through a pipe. The output end of the cylinder 1322 is connected to the mandrel 131, and the cylinder 1322 drives the mandrel 131 to move linearly.

[0177] In practical applications, in conjunction with the positioning chip and the first acquisition device 14, it can identify specific different workpieces corresponding to the second mark 16 on the workpiece and output corresponding positioning and clamping operations. Simultaneously, it can monitor the in-production positioning status of the workpiece on the production line. The cylinder 1322 can preferably be a servo cylinder 1322, whose stroke and speed are programmable and controllable. The servo cylinder 1322 can precisely control the reciprocating stroke of the mandrel 131. The mandrel 131 and at least three limiting posts 15 form a multi-directional positioning arrangement for the workpieces on the tray 12, achieving clamping and fixing of rectangular workpieces and locking the workpiece's posture.

[0178] Therefore, by using a servo cylinder 1322 as the drive mechanism 132, whose stroke and speed are programmable and controllable, the reciprocating stroke of the mandrel 131 can be automatically adjusted according to different workpiece specifications (corresponding to different second markings 16). When the product model is changed, the system can call up the corresponding clamping parameters by recognizing the second marking 16 on the workpiece, without the need for manual tooling replacement or manual adjustment of positioning elements.

[0179] Preferably, the top head 131 is provided with an end cap made of a flexible material. Specifically, the contact surface between the end cap and the workpiece can be made of a flexible material such as soft plastic or silicone to adapt to the slight shape differences at the corners of the workpiece and prevent scratches on the surface of the workpiece, thereby effectively improving the protection effect on the workpiece.

[0180] For the specific structure of the material tray 12, please refer to one embodiment of this application. Figure 6 and Figure 7 The tray 12 is provided with a rotating shaft 121, and the base plate 11 is provided with a shaft hole 111 for mounting the rotating shaft 121. The shaft hole 111 of the base plate 11 is provided with a bearing 112 that is sleeved with the rotating shaft 121. The cooperation between the bearing 112 and the rotating shaft 121 can reduce rotational friction and ensure that the tray 12 rotates smoothly and is positioned accurately during the adjustment process.

[0181] Thus, the tray 12 is connected to the bearing 112 on the base plate 11 via the rotating shaft 121, giving the tray 12 a degree of rotational freedom. When rectangular workpieces of different specifications (such as refrigerator drawers) are placed on the tray 12, the orientation of the workpieces can be finely adjusted by rotating the tray 12 to form an optimal clamping layout with the limiting post 15 and the pushing device 13. This structure avoids the need to frequently change the tray 12 or adjust the positioning elements to accommodate different types of workpieces, solving the problems of cumbersome posture positioning adjustments and time-consuming tooling changes when switching product models in traditional solutions, and effectively improving the flexibility of the production line.

[0182] In this embodiment, the material tray 12 is preferably a circular tray, and the pushing device 13, the first collecting device 14, and the three limiting posts 15 are arranged around its outer periphery. The circular tray structure, combined with its rotatable degree of freedom (achieved through the rotating shaft 121 and the bearing 112), allows the workpiece placed on the material tray 12 to rotate around the center at any angle.

[0183] In one embodiment of this application, an anti-slip pad (not shown) is preferably provided on the surface of the tray 12. By using the anti-slip pad to increase the coefficient of friction between the bottom of the workpiece and the contact surface of the tray 12, the workpiece can be effectively prevented from sliding or rotating on the tray 12 when the pushing device 13 applies a clamping force. This structure enhances the workpiece's posture locking effect during clamping, solving the positioning offset problem that easily occurs in large, thin-walled plastic parts (such as refrigerator drawers) due to their smooth surfaces and limited contact area, thus ensuring positional accuracy during processing.

[0184] For the specific structure of the first data acquisition device 14, please refer to one embodiment of this application. Figure 3 and Figure 4 The first data acquisition device 14 includes a tag scanning device 141 and a wireless communication module (not shown in the figure), which is used to upload the acquired information. In this embodiment, the wireless communication module can preferably be built into the tag scanning device 141 to simplify the structure and save space.

[0185] Therefore, the marking scanning device 141 is used to acquire images of the second marking 16 on the workpiece, thereby identifying what kind of workpiece is on the pallet assembly 1, and then automatically matching the corresponding workpiece clamping position. The marking scanning device 141 of the pallet assembly 1 scans the product marking to identify the product model, and by recognizing the second marking 16 on the workpiece through the system, the corresponding clamping parameters can be called, thereby precisely controlling the extension stroke and clamping force of the top head 131. This facilitates the automatic adaptation of the pushing device 13 on the pallet assembly 1 and the three limiting posts 15 to clamp the workpiece, without the need for manual tooling changes or manual adjustment of positioning elements.

[0186] The wireless communication module sends the collected identification information to the main control mechanism in real time. This structure enables automatic identification and instant uploading of workpiece identification, eliminating the need for manual scanning or data entry. It provides a reliable data entry point for binding and associating the second identification 16 of the workpiece with the first identification 10 of the pallet assembly 1, solving the problem that the original traceability was limited to the batch level and could not achieve accurate traceability at the single-piece level.

[0187] In practical applications, each pallet assembly 1 carries a workpiece and is transferred on the conveyor belt of each subsequent production unit. When the corresponding production unit operates on the workpiece, the pallet assembly 1 needs to be accurately stopped at the corresponding workstation to ensure the accuracy of the workpiece operation.

[0188] Therefore, this application provides a positioning component for positioning the pallet assembly described above. The positioning component is disposed on a conveyor belt, specifically on a roller conveyor belt.

[0189] For the specific structure of the positioning component, please refer to one embodiment of this application. Figure 8 , Figure 9 and Figure 10 The positioning component 2 includes a stop device 21 and a lifting device 22. The stop device 21 includes a first driver 211 and a stop block 212 for blocking the pallet assembly 1 from moving forward. The stop block 212 is disposed on the output end of the first driver 211. The first driver 211 is used to drive the stop block 212 to move up and down to emerge or submerge on the conveyor belt 800.

[0190] The lifting device 22 includes a second driver 221 and a top platform 222 for lifting the pallet assembly 1. The top platform 222 is disposed on the output end of the second driver 221. The second driver 221 is used to drive the top platform 222 to move up and down to rise or fall on the conveyor belt 800.

[0191] Thus, the stop device 21, through the first driver 211, causes the stop block 212 to protrude from the conveyor belt 800, precisely blocking the pallet assembly 1 carrying the workpiece from moving forward; the lifting device 22, through the second driver 221, drives the top platform 222 to rise, lifting the pallet assembly 1 off the surface of the conveyor belt 800 and stably positioning it in the workstation operating position. This structure achieves dual positioning of the pallet assembly 1 at the workstation (horizontal stop + vertical lifting), ensuring the positional accuracy of subsequent production units when operating on the workpiece, and solving the problem of operational deviation caused by inaccurate pallet positioning in traditional solutions.

[0192] Furthermore, the actions of the stop device 21 and the lifting device 22 can be programmed and controlled by the main control mechanism according to the current workpiece model and process requirements. When the product model is switched, the system can automatically adjust the start-stop sequence and action rhythm of each station positioning component 2, achieving the effect of dynamic rhythm adaptation without changing the physical layout of the production line. This structure solves the problems of difficult production rhythm adjustment and station switching interruption in traditional solutions when product model is switched, supporting the flexible manufacturing needs of multi-variety, small-batch mixed-line production.

[0193] In one embodiment of this application, please refer to the following: Figure 9 and Figure 10 The positioning component 2 also includes a base 23 for supporting the stop device 21 and the lifting device 22, with the stop device 21 and the lifting device 22 respectively mounted on the base 23.

[0194] Thus, the base 23 integrates the stop device 21 and the lifting device 22 into a single module, allowing the positioning component 2 to be quickly installed, disassembled, or moved as an independent unit. When product model changes require adjustments to the production line layout, only the positioning component 2 module needs to be moved or replaced as a whole, without the need to separately disassemble and reassemble the stop device 21 and the lifting device 22. This significantly shortens the time required for physical reconstruction of the production line and solves the problems of cumbersome layout adjustments and long downtime during model changes in traditional solutions.

[0195] In one embodiment of this application, please refer to the following: Figure 8 , Figure 9 and Figure 10 Preferably, two lifting devices 22 are provided, and the two lifting devices 22 are arranged sequentially along the length direction of the base 23. When the stop device 21 stops the tray assembly 1, the two lifting devices 22 are positioned to cooperate with the base plate 11 in the tray assembly 1.

[0196] This allows the two lifting devices 22 to simultaneously lift the pallet assembly 1 from the front and rear ends respectively, effectively ensuring the stability of the pallet assembly 1. This structure keeps the pallet assembly 1 in a stable horizontal position during the lifting process, avoiding tilting, swaying or displacement that may be caused by single-point lifting. It is especially suitable for carrying pallets for large, complex, thin-walled plastic parts such as refrigerator drawers, ensuring the accuracy and reliability of subsequent operations (such as robotic arm gripping, scanning by inspection equipment, etc.).

[0197] Preferably, the first driver 211 and the second driver 221 described above can preferably be linear cylinders 1322.

[0198] In order to transfer the various pallet assemblies 1 carrying the workpieces, a corresponding transfer device is set according to the structure of the pallet assembly 1 to realize a stable and reliable position transfer operation of the pallet assembly 1 and the workpieces on it.

[0199] Therefore, this application embodiment also provides a transfer device 3 for transferring the position of the above-mentioned pallet assembly 1, please refer to it together. Figure 11 , Figure 12 and Figure 13 The transfer device 3 includes a support 31, a robotic arm 32, and a third drive 33. The support 31 is provided with rails 311. In this embodiment, the support 31 is provided with a pair of parallel rails 311.

[0200] Each track 311 is equipped with a robotic arm 32, which is used to grip or place the tray assembly 1. The robotic arm 32 extends downward so that its operating end is located at the lower end.

[0201] The third actuator 33 is disposed on the track 311 of the bracket 31. The third actuator 33 is used to drive the robot arm 32 to move along the track 311. This means that the robot arm 32 can grip the tray assembly 1 and move it along the track 311, and release the tray assembly 1 at a preset position, thereby realizing the position transfer operation of the tray assembly 1.

[0202] Thus, the transfer device 3 achieves fully automated handling of the pallet assembly 1, replacing the traditional material handling method that relies on overhead cranes or manual forklifts. This solves the problems of low efficiency, inaccurate positioning, and high labor intensity associated with manual handling, effectively improving production continuity and operational consistency. The support 31 is equipped with a pair of parallel extending tracks 311, which can be configured with multiple sets of robotic arms 32 to work collaboratively or to handle transfer tasks between different workstations. This design supports parallel transmission and path diversion, avoiding the problems of robotic arms 32 waiting or congestion in single-track 311 mode. When product model changes require adjustments to the production line workstation layout, quick adaptation can be achieved by changing the movement path and stopping position of the robotic arms 32, enhancing the flexibility of physical reconfiguration of the production line.

[0203] Regarding the specific structure of the third driver 33, in the embodiments of this application, the third driver 33 includes a motor, a gear set and a rack. The output end of the motor, the gear set and the rack are sequentially connected. The rack is connected to the robot arm 32. The motor drives the rack to move linearly through the gear set.

[0204] In this way, by using a motor and a transmission chain consisting of a gear set and a rack, rotational motion can be precisely converted into linear motion, thereby driving the robot to move linearly along the track.

[0205] For the specific structure of the robotic arm 32, please refer to one embodiment of this application. Figure 12 and Figure 13 The robotic arm 32 includes a fourth actuator 321 and a gripper 322. The gripper 322 is disposed on the output end of the fourth actuator 321 and is capable of gripping the substrate 11 in the tray assembly 1 from both sides. The fourth actuator 321 is used to drive the gripper 322 to move up and down.

[0206] In this way, the grippers 322 clamp the substrate 11 in the tray assembly 1 from both sides, thereby forming a symmetrical clamping force distribution. This ensures that the tray assembly 1 maintains a stable horizontal posture during transfer, avoiding the risk of tilting, shaking, or falling off due to clamping on one side. For the tray assembly 1 that carries large, complex, thin-walled plastic parts (such as refrigerator drawers), this structure provides reliable gripping stability and solves the problems of workpiece displacement, collision, or even falling that easily occur during traditional manual or semi-automatic transfer processes.

[0207] In addition, the fourth drive 321 drives the gripper 322 to move up and down, enabling the robot arm 32 to move up and down in the vertical direction, so as to accurately pick up the pallet assembly 1 from the conveyor belt 800 or the positioning component 2, and place the pallet assembly 1 smoothly in the target position. This effectively realizes the seamless connection between processes and solves the problems of process dispersion and material transfer interruption in traditional solutions.

[0208] For the specific structure of the gripper 322, please refer to one embodiment of this application. Figure 13 The gripper 322 includes a fifth actuator 3221 and a pair of linkage frames 3222. The pair of linkage frames 3222 are symmetrically arranged with respect to the fifth actuator 3221. One end of the pair of linkage frames 3222 is the gripping end, and the other end is connected through a connecting bar shaft.

[0209] The output end of the fifth actuator 3221 is connected to the connecting bar 3223 and is used to drive the connecting bar 3223 to move outward or retract, so that the clamping ends of the pair of linkage frames 3222 can rotate around the lever point as the axis to move closer or further apart.

[0210] Thus, a pair of linkage frames 3222 are symmetrically arranged with the fifth actuator 3221, forming a linkage structure through the connecting bar 3223 and the rotating shaft 121. When the fifth actuator 3221 drives the connecting bar 3223 to move outward or retract, the lever principle is used to make the clamping ends of the pair of linkage frames 3222 move closer or further apart synchronously. This structure ensures that when the grippers 322 clamp the substrate 11 of the tray assembly 1, the clamping force on both sides is equal and the action is synchronized, avoiding tray tilting, deflection, or excessive local force on the substrate 11 caused by one side contacting first or uneven clamping force, effectively improving the stability and safety of the transfer process of the tray assembly 1.

[0211] Furthermore, the linkage structure based on the lever principle establishes a defined transmission ratio between the opening and closing stroke of the clamping end and the stroke of the fifth actuator 3221. When product model switching causes a change in the size of the substrate 11 of the tray assembly 1, the system can precisely adjust the opening and closing amplitude of the clamping end by controlling the stroke of the fifth actuator 3221, achieving automatic adaptation to substrates 11 of different widths without the need to replace the gripper 322 or make manual adjustments. This structure solves the problems of long changeover times and frequent tooling changes during model switching in traditional solutions, further supporting the flexible requirements of multi-variety, small-batch mixed-line production.

[0212] Regarding the clamping end structure on the linkage 3222, please refer to one embodiment of this application. Figure 11 , Figure 12 and Figure 13 Each of the clamping ends of a pair of linkage frames 3222 is provided with a clamping plate 3224, which is used to make surface contact with the side of the base plate 11 in the tray assembly 1.

[0213] Thus, the clamping plate 3224 forms a surface contact with the side of the substrate 11 of the tray assembly 1, which is beneficial to increasing the clamping contact area compared with the traditional point contact or line contact clamping method. This structure makes the clamping force evenly distributed on the side of the substrate 11, effectively preventing the substrate 11 from deforming or becoming unstable due to excessive local force, ensuring that the tray assembly 1 maintains a stable posture without shaking or deflection during the transfer process, and solving the problem that large tray assemblies 1 are prone to tilting or falling off due to concentrated clamping force during transfer.

[0214] Please see Figure 14 The intelligent production line for refrigerator storage components provided in this application embodiment includes an injection molding unit 100, a coding unit 200, a trimming unit 300, a detection unit 400, a cleaning unit 500, a sorting unit 600, a packaging unit 700, and a storage area 900.

[0215] Please refer to the following: Figure 14 , Figure 15 and Figure 16The injection molding unit 100 includes an injection molding machine 101 and molds 4 for different workpieces, with the molds 4 mounted on the injection molding machine 101. Specifically, according to production requirements, appropriate molds 4 can be added to the injection molding machine 101 to manufacture workpieces of corresponding specifications.

[0216] Please refer to the following: Figure 14 and Figure 25 The coding unit 200 includes a coding device 201, which is used to generate a second mark 16 on the workpiece. In this embodiment, the coding device 201 can preferably be a laser coding machine, which performs laser coding at a designated position on the workpiece (such as a refrigerator drawer) to generate the second mark 16 on the workpiece, thereby giving each workpiece a unique identity.

[0217] Please refer to the following: Figure 14 and Figure 26 The finishing unit 300 includes a machine tool 301, which can preferably be a CNC machine tool. This machine tool 301 is used for precision machining of the workpiece. Specifically, the machine tool 301 can automatically remove excess material such as gates and flash from the injection-molded workpiece blank, thus achieving precision machining of the workpiece.

[0218] Please refer to the following: Figure 14 and Figure 27 The inspection unit 400 includes a quality inspection robot 401 with image acquisition capabilities. This robot 401 is used for visual comparison inspection based on workpiece images obtained from image acquisition. Specifically, automated inspection can be performed by comparing product dimensions, appearance defects, etc., using machine vision.

[0219] Please refer to the following: Figure 14 and Figure 28 The cleaning unit 500 includes a cleaning device 501, which is used to clean the workpiece. Specifically, it can automatically blow or wash the repaired workpiece to remove debris.

[0220] Please see Figure 14 The sorting unit 600 includes multiple robotic arms 601 or multiple transfer devices 3 as described above, which are used to sort the workpieces separately.

[0221] Packaging unit 700 is used for packaging workpieces.

[0222] The pallet assembly 1 carries the workpieces between the trimming unit 300, the inspection unit 400, the cleaning unit 500, the sorting unit 600, and the packaging unit 700.

[0223] Warehouse area 900 includes raw material automated storage and retrieval system 901, mold automated storage and retrieval system 902, injection molded product automated storage and retrieval system 903, and intelligent pallet automated storage and retrieval system 904.

[0224] The trimming unit 300, detection unit 400, cleaning unit 500, sorting unit 600 and packaging unit 700 are each equipped with a second acquisition device (not shown in the figure) to collect the first mark 10 on the pallet assembly 1. The second acquisition device is electrically connected to the main control mechanism through a wired connection or a wireless communication module.

[0225] The second data acquisition device can preferably be a code reader, which identifies the first identifier 10 on the tray assembly 1. Since the first identifier 10 is associated with the second identifier 16 on the workpiece, this means that as long as the first identifier 10 on the tray assembly 1 is identified, the workpiece with the corresponding second identifier 16 can be confirmed. After identification and scanning, the second data acquisition device uploads the location information and manufacturing parameter information, which helps to form a unique digital file for the product.

[0226] In this way, the system integrates a complete set of processes including injection molding, coding, trimming, inspection, cleaning, sorting, and packaging. Each unit carries the workpiece through the pallet assembly 1, and the transfer device 3 enables automatic transfer between processes. This structure forms a continuous automated production chain from raw materials to finished products, eliminating the breakpoints in traditional solutions where processes are scattered and material transfer relies on manual labor, effectively improving production efficiency and product consistency.

[0227] Each production unit (trimming, inspection, cleaning, sorting, and packaging) is equipped with a second data acquisition device to identify the first identifier 10 on the pallet assembly 1. Since the first identifier 10 is associated with the second identifier 16 on the workpiece, the system can automatically bind the manufacturing parameters of each unit (such as machine tool 301 processing parameters, visual inspection results, cleaning records, packaging information, etc.) to the corresponding workpiece. This structure achieves automatic data acquisition and association throughout the entire process, forming a unique digital archive spanning the product lifecycle, and solving the problems of isolated production process data and difficulties in analyzing the root causes of quality issues.

[0228] For the specific structure of mold 4, please refer to one embodiment of this application. Figure 19 , Figure 20 and Figure 21 The mold 4 includes a fixed mold 41 and a moving mold 42. The fixed mold 41 is provided with a first temperature sensor group 411, which is used to detect the temperature of the cooling water flow in the cooling pipes on the fixed mold 41. The moving mold 42 is provided with a second temperature sensor group 421, which is used to detect the temperature of the cooling water flow in the cooling pipes on the moving mold 42.

[0229] In this embodiment, as Figure 21As shown, in the cooling systems of the fixed mold 41 and the moving mold 42, the cooling circuit of the fixed mold 41 is equipped with a first temperature sensor group 411 at one inlet and two outlet monitoring points; the cooling circuit of the moving mold 42 is equipped with a second temperature sensor group 421 at two inlets and two outlet monitoring points. The first temperature sensor group 411 and the second temperature sensor group 421 are each composed of multiple temperature sensors, thus forming a temperature sensor group. In practical applications, after detection, the readings of the first temperature sensor group 411 and the second temperature sensor group 421 are averaged, and then a mold opening command is issued when the temperature reaches the specified range.

[0230] This multi-point, multi-loop temperature monitoring system, combined with the known thermophysical parameters of the mold 4 material and the three-dimensional model of the cooling water circuit, enables the system to deduce and reconstruct the dynamic temperature field distribution on the surface of the mold 4 cavity in real time through the temperature calculation model, and accurately perceive the cooling state and uniformity of the cavity and melt.

[0231] In practical applications, during the cooling stage, the system dynamically adjusts the flow rate and temperature of each independent cooling loop based on the reconstructed cavity temperature field, implementing differentiated and precise cooling to minimize internal stress and warpage deformation in the product and optimize cooling time. The system aggregates data from the entire process to generate a unique digital profile for each product, enabling full lifecycle quality traceability. Simultaneously, through machine learning of historical process data and quality results, the system can continuously optimize process parameter windows and provide early warnings of mold health status and potential quality risks.

[0232] Therefore, a first temperature sensor group 411 and a second temperature sensor group 421 are respectively set at key monitoring points (inlet and outlet) of the cooling circuits of the fixed mold 41 and the moving mold 42, forming a multi-point, multi-loop temperature monitoring system. Combining the thermophysical parameters of the mold material 4 and the three-dimensional model of the cooling water circuit, the dynamic temperature field distribution on the surface of the mold cavity 4 is calculated and reconstructed in real time through a temperature calculation model. This structure achieves accurate perception of the cooling state and uniformity of the cavity and melt, solving the problem of traditional solutions that rely on monitoring only a single temperature point and cannot comprehensively grasp the temperature distribution of the cavity.

[0233] In one embodiment of this application, please refer to the following: Figure 19 , Figure 20 and Figure 21 The mold 4 is also equipped with a pressure sensor 431 in the cavity 43. The pressure sensor 431 is used to monitor the pressure changes in the cavity 43 during the injection filling and holding pressure stages.

[0234] In this embodiment, a miniature pressure sensor 431 is preferably embedded in a key location (such as near the gate) of the cavity 43 of the mold 4, which can directly and in real time monitor the pressure change curve inside the cavity during the injection filling and holding pressure stages.

[0235] Therefore, during the holding pressure stage, the system can dynamically adjust the holding pressure output of the injection molding machine 101 using the real-time reading of the cavity pressure sensor 431 as feedback signal, forming a closed-loop pressure control. This ensures that material shrinkage is accurately compensated for in each molding process, fundamentally eliminating shrinkage marks and stabilizing product weight and dimensions. This is beneficial for improving the product consistency of large, complex, thin-walled plastic parts (such as refrigerator drawers) and solves the batch-to-batch quality difference problem caused by pressure fluctuations in traditional solutions.

[0236] Furthermore, the pressure change curves collected by pressure sensor 431 during the filling and holding stages are linked to the unique identifier of each product as key process parameters, forming a complete digital archive. This structure enables precise recording of single-piece-level process data, providing accurate process data support for the root cause analysis of subsequent quality problems (such as shrinkage marks, dimensional deviations, etc.), and solving the problems of isolated production process data and batch-level traceability in traditional solutions.

[0237] In another embodiment of this application (not shown in the figure), the mold 4 is provided with at least two cavities 43, and each cavity 43 is provided with a pressure sensor 431.

[0238] Therefore, a pressure sensor 431 is installed in each cavity 43 of the mold 4 to independently monitor the pressure change curve of each cavity 43 during the injection filling and holding pressure stages. This structure solves the problem of unknown process deviations between cavities 43 caused by monitoring only the pressure of a single cavity 43 and assuming that the pressure of all cavities 43 is the same in traditional multi-cavity molds. It ensures that the molding process of each cavity 43 can be independently monitored and evaluated, improving the consistency of each product in a multi-cavity mold.

[0239] The system can independently and dynamically adjust the holding pressure of each cavity 43 based on real-time feedback from the pressure sensor 431 of each cavity 43, forming an independent pressure closed-loop control for each cavity 43. For multi-cavity production of large, complex, thin-walled plastic parts (such as refrigerator drawers), this structure can accurately compensate for factors such as differences in flow channel balance and cooling in different cavities 43, fundamentally eliminating quality differences such as shrinkage marks and dimensional deviations between cavities 43, and significantly improving the overall yield of multi-cavity molds.

[0240] Furthermore, the multi-cavity mold 43 is beneficial for mass production of workpieces. When product models are switched, different specifications of workpieces may correspond to multi-cavity molds 4 with different cavity layouts 43. The independent pressure sensor 431 structure for each cavity 43 enables the system to quickly establish independent pressure monitoring and closed-loop control strategies for each cavity 43 of the new mold 4, without the need for manual adjustment of process parameters for each cavity 43, shortening the changeover and debugging time, and further supporting the needs of flexible manufacturing.

[0241] In practical applications, traditional injection molds lack deeply integrated sensor networks, and the molding process operates in a fixed start-stop command state. Specifically:

[0242] (1) Unknown process: It is impossible to directly and in real time obtain the actual pressure of melt filling in the mold cavity and the distribution of the temperature field on the surface of the fixed mold and the moving mold cavity. The process setting and adjustment are highly dependent on the operator's experience and subsequent trial molding, and the adjustment cycle is long and blind.

[0243] (2) Fixed control: Due to the lack of key process feedback signals, the injection molding machine, mold temperature controller and other execution units can only operate according to the preset fixed program. They cannot perform real-time dynamic compensation and perception of raw material batch fluctuations, environmental changes or mold state drift, resulting in poor stability of product size, weight and internal quality, and high scrap rate.

[0244] (3) Lagging quality control: Defects (such as shrinkage marks, warping, and under-filling) can only be discovered after the product has cooled and been demolded or even in subsequent processes. Early warning and intervention cannot be carried out during the molding process, which can easily lead to batch quality loss.

[0245] Therefore, in the injection molding unit 100 provided in this application embodiment, the first temperature sensor group 411, the second temperature sensor group 421 and the pressure sensor 431 provided on the mold 4 form a full-sensory network module.

[0246] On the one hand, the system achieves transparency and precise perception of the molding process: the network pressure sensor 431 directly captures the pressure transient curves at key points of the gate and cavity, accurately reflecting the entire process of melt filling, compaction, and shrinkage, and sensing the pressure status; the distributed temperature sensor group (first temperature sensor group 411 and second temperature sensor group 421) monitors the inlet and outlet temperatures of the multi-loop cooling water and, combined with the thermodynamic correspondence model, can analyze the dynamic temperature field distribution on the cavity surface in real time. This is the first time that in-situ, real-time, and digital measurement of the core physical fields (pressure field and temperature field) of molding has been achieved, making the molding process completely transparent and quantifiable. During the holding pressure stage, the system uses the real-time readings of the pressure sensor 431 as feedback to dynamically adjust the holding pressure output, forming a pressure closed-loop control, accurately compensating for material shrinkage in each mold cycle, fundamentally eliminating shrinkage marks and stabilizing the weight and dimensions of the product. During the cooling stage, the system independently and dynamically regulates the flow rate and temperature of each cooling loop based on the reconstructed temperature field, implementing differentiated and precise cooling to minimize internal stress and warpage deformation in the product and optimize cooling efficiency. This closed-loop control can automatically adapt to disturbances from raw materials, the environment, etc., suppressing process fluctuations at the outset and ensuring high product quality and consistency.

[0247] On the other hand, it empowers proactive quality control and full lifecycle traceability: the all-sensor network module, composed of the first temperature sensor group 411, the second temperature sensor group 421, and the pressure sensor 431, acquires real-time process data (pressure curves, temperature curves), which are manufacturing parameter records of the product's intrinsic quality. The system can establish a predictive model linking these process parameters to key quality characteristics of the final product (such as dimensions and mechanical strength) through subsequent machine learning models for each batch in the data center, thus enabling early warning of quality risks before the product is demolded. Simultaneously, this complete process data is strongly bound to the product's unique identification code (the second identifier 16 on the workpiece) by scanning, forming a core component of the digital archive for this single product. This data is stored and traced through the main control mechanism, providing data for achieving "batch traceability" to "precise traceability throughout the entire process of a single product" and root cause analysis of quality problems.

[0248] For the specific structure of the packaging unit 700, please refer to one embodiment of this application. Figure 30 The packaging unit 700 includes a film-applying device 701, a box-fitting device 702, a labeling device 703, and a quality inspection device 704. The film-applying device 701 is used to apply a protective film to the workpieces. The box-fitting device 702 is used to fit multiple workpieces into a packaging box. The labeling device 703 is used to print and affix labels to the packaging boxes of the workpieces. The quality inspection device 704 is used to scan and re-inspect the appearance of the packaged workpieces or the labels after packaging.

[0249] In this embodiment, the laminating device 701 can preferably be a laminating machine that automatically applies a protective film to the surface of the workpiece. The boxing device 702 can preferably be a packaging machine that automatically stacks the workpieces and places them into cartons according to the order quantity.

[0250] The system's main control unit aggregates the entire process data of the workpiece and generates a logistics label containing a unique QR code. The labeling device 703, preferably using a label attaching machine, automatically affixes the label to the packaging box. The quality inspection device 704 uses an image comparison device to scan and re-inspect the appearance of the workpiece packaging or the label on the packaging.

[0251] Thus, the packaging unit 700 integrates a laminating device 701, a boxing device 702, a labeling device 703, and a quality inspection device 704, forming a fully automated packaging production line from workpiece protection, boxing, coding to quality inspection. This structure replaces the traditional decentralized operation mode of manual laminating, manual boxing, manual labeling, and manual sampling inspection, effectively improving packaging efficiency and operational consistency, and solving the problems of decentralized packaging processes, reliance on manual labor, and low efficiency in traditional solutions.

[0252] Regarding the structure of the sorting unit 600, in the production system provided in this application embodiment, at least three sorting steps are provided.

[0253] Please refer to the following: Figure 14 and Figure 27 The first sorting step involves a sorting unit 600 including a first transfer device 3a, which is mounted on the detection unit 400 and used to remove and divert workpieces that fail the detection. In other embodiments, the first transfer device 3a can be replaced by a first robotic arm to perform the corresponding diversion operation.

[0254] In this embodiment, if there are unqualified workpieces in the detection unit 400, the main control mechanism starts a sub-process and uses the first transfer device 3a to sort and remove the unqualified workpieces and their tray assembly 1 together, and enter the subsequent rework process. The qualified workpieces continue to be transferred to the subsequent production unit.

[0255] This enables automated sorting based on online detection results, replacing the traditional, slow-moving manual sorting process and solving the problems of low efficiency and error-prone manual sorting.

[0256] The first transfer device 3a removes the defective workpiece along with its pallet assembly 1, ensuring that all data associated with the defective workpiece (such as raw material batch, process parameters, and test results) remains physically linked to the workpiece. This structure prevents data loss due to separation of the workpiece from the pallet, ensuring the integrity of the workpiece's digital file and the traceability of subsequent rework processes.

[0257] Please refer to the following: Figure 14 and Figure 29 The second sorting step involves the sorting unit 600 further including a second transfer device 3b. The second transfer device 3b is positioned between the cleaning unit 500 and the packaging unit 700, and is used to divert workpieces from the packaging unit 700 or other final assembly processes. In other embodiments, the second transfer device 3b can be replaced by a second robotic arm to perform the corresponding diversion operation.

[0258] In this embodiment, the main control unit of the system, based on the production schedule, instructs whether the workpiece should enter the subsequent automatic packaging unit 700 or the sorting stage and flow into the refrigerator assembly line. When it enters the sorting stage, the second transfer device 3b transports the workpiece and its tray assembly 1 together to the refrigerator packaging line to participate in the refrigerator assembly process.

[0259] This enables dynamic path selection based on production plans, allowing the same production line to flexibly produce finished products (entering packaging unit 700) or in-process (entering the complete machine assembly line) according to order requirements, solving the problem of single production line path and inability to adapt to multiple order types in traditional solutions.

[0260] When product models change or production tasks change, the system only needs to adjust the production scheduling plan and flow distribution logic, without changing the physical layout of the production line, to achieve a rapid switch in workpiece flow direction. This structure enables the production line to simultaneously or alternately meet two production modes: finished product shipment and complete machine assembly. It improves the production line's adaptability to multi-variety, small-batch, and mixed-line production, and solves the problems of difficult production line reconstruction and long changeover time when changing product models in traditional solutions.

[0261] Please refer to the following: Figure 14 and Figure 30 The third sorting step involves a third robotic arm 601c, which is located in the packaging unit 700 and used to remove and divert workpieces that do not meet packaging standards. In other embodiments, the third robotic arm 601c can be replaced by the aforementioned transfer device 3 for the corresponding diversion operation.

[0262] In this embodiment, the quality inspection device 704 in the packaging unit 700 is used to scan and re-inspect the appearance or label of the packaged workpiece. If the workpiece is not packaged correctly, the third robotic arm 601c removes the workpiece; otherwise, the qualified workpiece proceeds to the subsequent shipping process.

[0263] This enables full inspection and automatic sorting of packaging quality, replacing the traditional manual sampling inspection mode. It solves the problems of low coverage, high missed inspection rate and slow sorting of manual sampling inspection, and ensures the packaging quality of products leaving the factory.

[0264] This third sorting stage, serving as the final quality checkpoint at the end of the production line, forms a closed-loop system with the quality control of upstream injection molding, finishing, and inspection stages. This structure constructs a complete quality control chain from "raw materials—molding—processing—inspection—cleaning—packaging—shipping," ensuring that only products with qualified packaging can enter the shipping process, preventing defective products from entering the market, and effectively improving the reliability of product delivery quality.

[0265] Regarding the structure of the logistics transfer organization, please refer to one embodiment of this application. Figure 14 The logistics transfer mechanism also includes a roller conveyor belt 800, which is located between the trimming unit 300, the detection unit 400, the cleaning unit 500, the sorting unit 600, and the packaging unit 700. The pallet assembly 1 can move on the roller conveyor belt 800.

[0266] In this embodiment, the roller conveyor belt 800 extends outward from the coding unit 200 and is sequentially installed on the trimming unit 300, the detection unit 400, the cleaning unit 500, the sorting unit 600, and the packaging unit 700. The roller conveyor belt 800 serves as the main line for the workpiece to travel through the subsequent production units as the pallet assembly 1.

[0267] Please refer to the following: Figure 8 , Figure 9 and Figure 14 In the specific processing areas of each of the aforementioned production units, positioning components 2 for pallet assembly 1 can be respectively installed. The stop device 21 and lifting device 22 in the positioning component 2 can be located below the roller conveyor belt 800. During the positioning operation of pallet assembly 1, the stop block 212 of the stop device 21 and the top platform 222 of the lifting device 22 extend from the gap between adjacent rollers, respectively stopping and lifting the pallet assembly 1, thereby achieving the positioning operation of pallet assembly 1. This structure achieves physical integration of workstation positioning function and mainline logistics function, eliminating the need for additional independent positioning workstations or transfer mechanisms, effectively simplifying the production line layout and saving floor space.

[0268] In this way, the pallet assembly 1 can automatically transfer the workpieces on the roller conveyor belt 800, replacing the segmented transfer that relies on overhead cranes or manual forklifts in the traditional solution, eliminating material breakpoints between processes, and helping to improve production continuity and efficiency.

[0269] The control method for an intelligent production line of refrigerator storage components provided in this application includes the following steps:

[0270] (1) Order and task issuance: The main control unit receives production orders, generates production task flows containing product models, quantities, process routes, and parameter sets, and allocates them to production lines.

[0271] (2) Injection Molding: Injection molding unit 100 produces according to the formula in the task flow. The specific execution steps are as follows:

[0272] Step 1: Material and mold preparation and process parameter initialization;

[0273] Plastic material preparation: Plastic materials need to be selected and processed according to the requirements of the product. Usually, plastic granules or powders are heated to a molten state and then injected into mold 4 through an injection machine.

[0274] A smart mold 4 integrating a sensor network is installed in the injection molding machine 101. The mold 4 has miniature pressure and temperature sensors embedded at at least key locations in the cavity (such as the gate, end, and thick-walled sections). These sensors (such as the first temperature sensor group 411, the second temperature sensor group 421, and the pressure sensor 431 forming a full-sensor network module) and flow control valves and inlet / outlet temperature sensors installed on the cooling circuit branches. Force sensors are installed at the ejection oil circuit or ejector plate. The main control mechanism reads the mold 4's identification code and automatically retrieves the initial process formula matching the mold 4 and the target product from the process database. This includes screw temperature at each section, injection speed / pressure curve, V / P switching point, holding pressure / time curve, cooling time, and initial water temperature / flow rate, clamping force, and ejection parameters for each circuit. These parameters are then sent to the injection molding machine 101, mold temperature controller, and other execution units.

[0275] Step 2: Adaptive filling during material plasticization and injection process;

[0276] The injection molding machine 101 heats and plasticizes the plastic granules according to the formula. After the injection stage begins, the screw advances according to the preset speed curve and flow rate. At the same time, the in-mold pressure sensor 431 transmits pressure change data inside the cavity 43 in real time. The main control mechanism compares the actual pressure growth curve with the "ideal filling pressure curve" generated by simulation based on the material rheological properties and the 3D model of the mold 4 in real time. If a deviation from the actual curve is detected (such as excessively rapid pressure rise in a certain area indicating abnormal flow resistance, or insufficient pressure at the end indicating underfill risk), the system will dynamically fine-tune the injection speed or pressure setting for the subsequent cycles within milliseconds to make the actual filling state as close as possible to the ideal model, ensuring that the cavity 43 is completely filled and the molecular / fiber orientation is reasonable.

[0277] Step 3: Closed-loop environmental pressure control based on cavity pressure feedback;

[0278] When the system detects that the signal from the pressure sensor 431 at the end of the mold cavity has reached the preset V / P switching point pressure value, it immediately switches from the injection stage to the holding pressure stage. During the holding pressure stage, the system uses the reading of the pressure sensor 431 at a critical location (such as near the gate or a quality-sensitive area of ​​the product) as a feedback signal. The control system aims to make the pressure decay curve at that point follow a preset "ideal holding pressure curve." If the measured pressure is lower than the lower limit of the curve, the holding pressure is automatically supplemented according to certain logic (such as a PID algorithm); if the pressure is too high, it is appropriately reduced. This closed-loop control continues until the gate solidification signal (manifested as the holding pressure not being effectively transmitted) is triggered, thereby ensuring accurate and adaptive compensation for product shrinkage, minimizing shrinkage marks, and stabilizing product size and weight.

[0279] Step 4: Multi-loop intelligent cooling control;

[0280] After the pressure holding period, the cooling stage begins. The system calculates the cooling rate of different areas in real time based on the readings from temperature sensors (first temperature sensor group 411 and second temperature sensor group 421) within the mold 4. Combining this with the wall thickness distribution information in the 3D model of the product, the main control mechanism independently adjusts the valve opening of each cooling circuit to achieve differentiated thermal management of different areas of the mold 4. For example, the cooling water flow rate is increased for thick-walled areas or areas with higher temperatures, while the flow rate is reduced for thin-walled areas or areas with lower temperatures, thereby aiming for uniform and synchronous cooling of the entire product to the ejection temperature. This measure aims to minimize internal stress and warping deformation caused by uneven cooling and to shorten the necessary cooling time as much as possible.

[0281] Step 5: Monitoring and diagnosis of mold clamping and ejection status;

[0282] During the mold closing stage, the system monitors the clamping force establishment curve transmitted from the force sensor on mold 4 or the tie rod. If the curve establishes slowly, has insufficient peak value, or exhibits abnormal fluctuations, it indicates potential problems such as poor parallelism of mold 4, guide pillar jamming, or mold plate deformation, and issues a warning. During the ejection stage, the system monitors the pressure of the ejection oil circuit or the force sensor signal on the ejector plate to obtain the demolding force curve. If the demolding force exceeds the threshold set based on historical normal data, it indicates potential problems such as excessive product clamping force, poor venting of mold 4, or risk of mold sticking, triggering an alarm and potentially suggesting adjustments to the ejection speed and stroke, or inspection of the surface condition of mold 4.

[0283] (3) ID coding identity assignment: After the workpiece is produced from the injection molding unit 100, the coding unit 200 uses a laser marking machine to engrave a second identifier 16 on the workpiece, and the main control mechanism associates the second identifier 16 with the first identifier 10 on the current tray assembly 1.

[0284] (4) Trimming and Machining: The pallet assembly 1 carries the workpiece into the trimming unit 300. The trimming unit 300 uses a machine tool 301 to read the first identifier 10 on the pallet assembly 1, which identifies that it carries the workpiece with the corresponding second identifier 16, and downloads the corresponding machining program and compensation parameters from the platform to complete the machining. The machining data (such as actual cutting parameters) is uploaded to the main control mechanism and associated with the second identifier 16 of the workpiece. Specifically, the trimming and machining mentioned above can be the removal of slag, trimming, and finishing of the workpiece, thereby removing excess plastic material, smoothing the surface, and removing holes required for machining.

[0285] (5) Online inspection and real-time feedback: After processing, the workpiece enters the inspection unit 400. After the system identifies the first identifier 10 on the pallet assembly 1, it can load the inspection program corresponding to the workpiece with the second identifier 16 for full inspection. If the workpiece has defects, it is marked as unqualified; preferably, if it is a continuous trend deviation, the main control mechanism can immediately generate a process adjustment instruction and send it to the preceding equipment for adaptive compensation. Unqualified workpieces pass through the sorting unit 600 in the first sorting stage, and the pallet assembly 1 carrying the unqualified workpiece is removed from the main line using the transfer device 3.

[0286] (6) Post-cleaning processing: After the qualified workpieces are automatically cleaned by the cleaning unit 500 and automatically coated by the code reading drive, they are transferred to the packaging area.

[0287] The cleaned workpieces are divided into two destinations: one is to participate in the assembly of the overall refrigerator in the factory as components. Specifically, they can be transferred out of the sorting line by the sorting unit 600 in the second sorting process, such as by the transfer device 3, and loaded onto the AGV to be transported to the whole machine assembly line; the other is to be sold as original accessories and directly transported to the subsequent packaging unit 700.

[0288] (7) Flexible Packaging and Information Binding: The film-covering device 701 and the box-packing device 702 in the packaging unit 700 obtain the information of the workpiece with the corresponding second identifier 16 according to the first identifier 10 on the pallet assembly 1, and grab the designated carton to complete the packaging according to the preset program. Finally, the quality inspection device 704 inspects the packaging appearance of the workpiece, and uses the sorting unit 600 in the third sorting stage mentioned above, such as the transfer device 3, to remove the unqualified workpieces and allow the qualified workpieces to continue to the next process.

[0289] (8) Finished product warehousing and data closure: Associate the label printed on the outer packaging box with the second identifier 16 of the corresponding workpiece recorded in the system to complete the "box-workpiece" information binding and archive all production and inspection data. The successfully bound finished products are transported to the subsequent automated storage and storage, and the data is synchronized to the system to form a complete traceable data package.

[0290] The workflow of the intelligent production line for refrigerator storage components provided in this application embodiment is as follows:

[0291] I. Production line startup and production preparation;

[0292] Please refer to the following: Figure 14 , Figure 15 , Figure 16 , Figure 18 , Figure 19 and Figure 31Before production begins, the main control unit receives production orders, analyzes the order requirements, generates production instructions, and schedules resources.

[0293] Mold Installation: The corresponding mold 4 is transported from the mold storage unit 902 to the working area of ​​the intelligent injection molding unit 100, where the mold 4 and the injection molding machine 101 are universally clamped together via T-bolts 70. The hydraulic cylinder piston is universally connected to the mold 4 via double bushings 68. The hydraulic cylinder piston rod is connected to the moving mold opening drive linkage 65, forming a drive power source.

[0294] The mold 4 and the injection molding machine 101 are universally connected by T-type connecting bolts 70.

[0295] The hydraulic cylinder piston is engaged and driven by the ejection system of mold 4 through the double bushing 68.

[0296] The piston rod 66 of the first hydraulic cylinder is connected to the moving mold opening drive linkage 65 to form a driving power source.

[0297] Material scheduling: The main control unit instructs the raw material transport AGV103 to transport the designated grade of food-grade plastic granules from the raw material vertical storage 901 to one side of the intelligent injection molding unit 100, and the loading robot 102 completes the loading of the raw materials to the injection molding machine feed port 51.

[0298] Process issuance: The main control unit issues the optimal injection molding process parameter package, including injection speed, pressure, temperature, and cooling time, to the intelligent injection molding unit 100; issues the corresponding CNC trimming program and tool compensation parameters to the CNC adaptive precision trimming unit 300; and issues the dimensional tolerance and appearance defect detection standards for this product model to the online quality inspection unit 400 and the intelligent post-processing and packaging unit 700.

[0299] II. Intelligent injection molding;

[0300] Please refer to the following: Figure 15 , Figure 16 , Figure 17 , Figure 20 , Figure 22 as well as Figure 24 The injection molding unit 100 consists of an injection molding machine 101, a feeding robot 102, a raw material transport AGV 103, and a part-retrieving robot 104, completing intelligent injection molding from raw materials to blanks. Figure 22 As shown, an injection molding cycle includes the following steps:

[0301] (1) Confirmation of mold closing and clamping force: When the injection molding machine 101 starts, it first performs low-speed, low-pressure mold protection closure. The first hydraulic cylinder 67 in the injection molding machine 101 drives the moving mold opening drive linkage 65 through the first hydraulic cylinder piston rod 66, which drives the moving mold 42 of the mold 4 to close along the mold closing guide rod 62 and the opening and closing guide rod of the moving mold 42 of the mold 4. After the system judges that there are no foreign objects on the parting surface through the initial signal of the pressure sensor 431 in the mold 4 and the clamping force monitoring signal, it switches to high-pressure clamping. This ensures that the clamping force is balanced and accurately reaches the set value, thus establishing a stable and sealed cavity 43 for injection.

[0302] The injection molding machine 101 and the main control mechanism are matched to the clamping force / machine tonnage of the product in production. The specific matching method is determined based on the parameters of the injection molded product and actual conditions. After the injection molding machine starts and the mold closes, the clamping force is calculated as follows:

[0303] F clamp =p×A total ×K×μ

[0304] A total Projected area (cm²) × P Cavity pressure (kgf / cm²) K The viscosity coefficient of the material. μ It's the safety factor.

[0305] When the injection molding machine 101 starts, it first performs low-speed, low-pressure mold protection closure. At the same time, the hydraulic cylinder drives the lever arm to complete the opening and closing of the moving mold 42, thus completing the mold closing process.

[0306] (2) Sensing Injection: After the raw material is dried and plasticized, the worm gear extrusion transmission system 52 drives the spiral injection head 61 to advance according to the preset optimized curve, injecting the molten material into the mold cavity 43 through the mold 4 runner. The in-mold pressure sensor 431 provides real-time feedback and detects the filling pressure. The system accurately switches from speed control to pressure control (V / P) based on the flow end pressure signal reaching the preset threshold. The gas generated during the injection process is discharged through the mold cavity venting pipe 72.

[0307] (3) Adaptive closed-loop pressure holding: After injection, the system enters the pressure holding stage. The system uses the real-time pressure decay curve of the pressure sensor 431 near the gate as the feedback signal to dynamically adjust the pressure holding output, realize closed-loop control, accurately compensate for material shrinkage, and stabilize the weight and size of the product.

[0308] (4) Differentiated Cooling and Thermal Field Management: After the pressure holding period, the cooling stage begins. The first temperature sensor group 411 and the second temperature sensor group 421 network monitor the inlet and outlet water temperatures of the cooling pipes 44 in the fixed mold pipeline and the moving mold pipeline 42 in real time (such as the inlet and outlet measurement points of the first temperature sensor group 411). The system calculates the temperature field on the cavity surface by inverting the temperature equation and dynamically adjusts the valves of each cooling circuit to achieve differentiated and precise temperature control and optimize cooling efficiency. The system has built-in early warning logic, which can judge and alarm for scenarios such as blockage of the cooling pipes 44, insufficient flow, abnormal water temperature, and decreased heat transfer efficiency.

[0309] Monitoring and early warning strategies and the workflow of temperature monitoring sensors:

[0310] Signal acquisition: includes a first temperature sensor group 411 installed at the cooling water outlet and a second temperature sensor group 421 installed at the cooling water inlet. Both use PT100 platinum resistance thermometers with a measurement accuracy of ±0.1℃ and a response time of <1 second.

[0311] Data processing: Includes a microprocessor unit, configured with the following computing units:

[0312] After testing, the average value T of the readings from the first temperature sensor group 411 and the second temperature sensor group 421 is taken. _part_est Then, once the temperature range is reached, the mold opening command is issued.

[0313] Dynamic Model 42 Pipeline Monitoring Four Channels T out / T in Branch lines, fixed-mold pipeline monitoring three lines T out / T in Side road.

[0314] normal temperature T in The temperature is 20℃.

[0315] Temperature difference calculation unit: ΔT = T out - T in

[0316] Empirical unit for estimating temperature of injection molded parts:

[0317] T _part_est = T out + K×ΔT + C

[0318] Where K is the heat transfer efficiency coefficient (taken as 0.5), and C is the temperature offset constant (taken as 10℃).

[0319] Control execution module: Communicates with the injection molding machine 101 controller, when T _part_est When the preset mold opening temperature (50-55℃) is reached, the average value T1 and T2 of the readings of the first temperature sensor group 411 and the second temperature sensor group 421 are taken as T1. _part_est Then, once the temperature range is reached, the mold opening command is issued.

[0320] Early warning and alarm module: includes a three-level alarm indicator and an audible and visual alarm device;

[0321] Interactive interface: Industrial computer display, showing temperature curves, estimated values ​​and alarm information in real time.

[0322] Five warning scenarios and judgment criteria are considered:

[0323] Scenario 1 determination: Cooling water pipe blockage;

[0324] ΔT gradually decreases to <3℃, T out The rise is slow, T part_est Unable to be reduced to the mold opening temperature;

[0325] For three consecutive periods, ΔT decreases by more than 30%, and T part_est >60℃;

[0326] A level 3 warning was triggered, indicating "Cooling pipe 44 may be blocked, check the filter".

[0327] Scenario 2 determination: Insufficient cooling water flow;

[0328] ΔT continuously > 10℃, T _out Significantly higher than normal;

[0329] ΔT>10℃ for two consecutive cycles, and T out >34℃;

[0330] A level 2 warning was triggered, prompting "Insufficient cooling water flow; check water pumps and valves."

[0331] Scenario 3 determination: Water temperature control system malfunction;

[0332] T in Abnormal fluctuations, T out This was followed by abnormal fluctuations;

[0333] T in The temperature change is greater than 3°C within 10 seconds, and the deviation from the set value of 20°C is greater than 2°C.

[0334] The system triggered a Level 2 warning, indicating "Water temperature controller malfunction, please check the temperature controller".

[0335] Scenario 4 determination: Heat transfer efficiency decreases;

[0336] T out And ΔT is normal, but T part_est The calculated value is abnormally high;

[0337] Infrared temperature measurement verification after actual mold opening T actual With T part_est Deviation > 10℃;

[0338] The message "Abnormal heat transfer coefficient, it is recommended to clean the mold water channels" appears.

[0339] Scenario 5: Periodic temperature drift, inaccurate data monitoring;

[0340] T out It exhibits a slow, unidirectional trend of change;

[0341] Linear regression analysis showed T out The temperature change per hour is greater than 1°C.

[0342] A Level 1 warning has been triggered, displaying the message "Temperature is drifting slowly; please monitor carefully."

[0343] (5) Mold opening: The system continuously monitors the cavity temperature and pressure. When it is determined that the core temperature of the product has dropped below the mold opening temperature and the residual pressure inside the mold has dropped to a safe threshold, a mold opening command is issued.

[0344] (6) Ejection: Please refer to the following after the mold opening command is issued. Figure 17 , Figure 22 as well as Figure 23 In the injection molding machine 101, the second hydraulic cylinder 64, through the second hydraulic cylinder piston rod 63, drives the ejector system docking rod of the moving mold 42. The mold ejector rod 69 drives the ejector plate of the ejector system along the ejector system guide rail 73, and under the action of the inclined ejector mechanism (including the inclined ejector mechanism base 74, the inclined ejector rod 75, and the mold block 76), the product is ejected from the core. Subsequently, the ejector system reset spring 71 ensures that the ejector system is reset.

[0345] (7) Pickup and Data Binding: Please refer to the following: Figure 15 as well as Figure 16 The ejected product falls into the discharge buffer transfer platform 55 through the discharge port 54. The picking robot 104 removes the product and places it on the buffer transfer platform 55. The picking robot 104's vision system captures an image of the product and pre-associates the data package containing the complete process parameters, sensor curves, etc. of the in-process injection molded product with the product's identity information, and uploads it to the main control mechanism.

[0346] (8) Mold cleaning: After removing the parts, please refer to Figure 16 The cleaning system 56 on the injection molding machine 101 is started, cleaning the fixed mold 41 and the moving mold 42 of the mold 4 in sequence. Then, the blower drying equipment 53 in the injection molding machine 101 dries them to prepare the mold for the next cycle.

[0347] III. Laser marking and smart tray integration;

[0348] Please refer to the following: Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 25 The coding unit 200 operates as follows: the picking robot 104 or the product is placed and transferred to this unit. The handling robot 202 of the laser coding unit 200 picks up the product and places it at the laser coding device 201 station, where a unique second identifier 16 (QR code) is laser-engraved on the side of the product.

[0349] Intelligent Pallet Online and Binding: An empty pallet assembly 1 is transported from the intelligent pallet automated storage system 904 to the intelligent pallet coding unit 200. The pallet handling robot 202 picks up the coded product and places it into pallet assembly 1. The identification scanning device 141 on the pallet scans the product model of the second identification mark 16, outputs the corresponding clamping force, and the adaptive four-post chuck mechanism on the pallet (composed of a pusher device 13 and limit posts 15, etc.) is activated, clamping the product from all four sides to achieve zero-drift fixation, forming pallet assembly 1 supporting the injection-molded product. The identification scanning device 141 on the pallet scans the second identification mark 16 of the product and binds it with the first identification mark 10 information on pallet assembly 1 in the system, completing the identity association.

[0350] IV. Flexible circulation and serialized processing based on smart pallets;

[0351] Once bound, the pallet assembly 1 flows along the roller conveyor belt 800 to subsequent units, and each workstation calls the dedicated program to operate by reading the corresponding code of the pallet RFID.

[0352] CNC Adaptive Precision Dressing Unit 300: Please refer to Figure 26 The system reads the first identifier 10 code on the tray assembly 1, automatically calls the corresponding machining program, and the CNC machine tool 301 completes the finishing of parts such as the gate, flash milling, and guide rail groove of the refrigerator drawer. The machining data is uploaded in real time through code interaction.

[0353] Online quality inspection unit 400: Please refer to Figure 27 When pallet assembly 1 is transferred to this unit, the quality inspection robot 401, in conjunction with 3D vision scanning equipment, automatically detects the product's key dimensions, flatness, and appearance defects (such as shrinkage marks and scratches). The inspection results are then linked to the first identifier 10 on pallet assembly 1.

[0354] First sorting: If the online inspection fails (NG), the main control mechanism instructs the sorting system to start. The first non-conforming product transfer device 3a sorts and removes the non-conforming product along with the pallet assembly 1, removes it from the main line through the first sorting line 402, and places it on the non-conforming product transport AGV 404 via the first non-conforming product off-line robot 403, entering the rework channel. Conforming products continue to circulate.

[0355] V. Cleaning, post-processing and packaging;

[0356] Cleaning Unit 500: Please refer to Figure 28 The qualified product pallet assembly 1 enters the cleaning station for automatic chip removal and cleaning.

[0357] Subsequently, based on the production schedule of the main control organization for qualified injection molded parts, the central control data platform will instruct whether to send them to the subsequent automatic packaging line or to the sorting line and then into the refrigerator assembly line.

[0358] Please see Figure 29 When the product enters the sorting line, the sorting and identification robot 602 identifies the specific product, and the second transfer device 3b transports the whole product and pallet assembly 1 to the second sorting line 603. The product is then loaded onto the sorting AGV 605 by the second off-line robot 604 and transported to the refrigerator packaging line to participate in the assembly of the whole machine.

[0359] Sorting unit 600 collaboration: According to the production plan, some products may need to be directly supplied to the final assembly line before packaging. Sorting identification robot 602 can identify diversion instructions, and the second transfer device 3b transfers the products to the sorting AGV 605 for outgoing transport via the second sorting line 603 and the second off-line robot 604.

[0360] Intelligent Post-Processing and Packaging Unit 700: Please refer to Figure 30 After cleaning, the products proceed to the following workstations in sequence:

[0361] Film coating: The film coating device 701 automatically applies a protective film to the surface of the product.

[0362] Packaging: The carton-stuffing device 702 automatically stacks the products and inserts them into cartons according to the order quantity.

[0363] Labeling: The main control unit summarizes the data of the entire process of the product and generates a logistics label with a unique QR code, which is automatically affixed to the packaging box by the labeling device 703.

[0364] Final Inspection and Sorting: Packaged finished products undergo final verification via sorting line ③ 705. Quality inspection device 704 performs visual or label scanning re-inspection. If the packaging is substandard, it is rejected by robotic arm 601c via sorting line ③ 705 and transported away by non-conforming product transport AGV 706. Qualified finished products are then transferred by packaging off-line robot 707 to packaging transport AGV 708.

[0365] VI. Finished product warehousing, data closed-loop, and intelligent operation and maintenance;

[0366] Finished product warehousing: Please refer to Figure 31 All finished product boxes that pass all inspections are transported by AGV to the injection molding product vertical warehouse 903, and the warehouse location information is fed back to the main control unit.

[0367] Data closed-loop and intelligent operation and maintenance: The main control organization archives data for each product throughout the entire supply chain, from raw materials, molding, processing, testing to packaging, generating a traceable digital product file. The system achieves the following intelligent management:

[0368] Mold health management: Continuously analyze data such as clamping force balance, ejection force curve, and cooling efficiency to assess mold condition and provide early warnings of potential failures.

[0369] Process self-optimization: Based on the accumulated "process-quality" big data model, it regularly recommends or automatically fine-tunes injection molding and processing parameters to continuously optimize the production window.

[0370] End-to-end traceability: By scanning the QR code on the product or packaging box, the complete production history can be accessed instantly, enabling accurate quality traceability and root cause analysis, with the entire process displayed on a central large screen.

[0371] This embodiment achieves molding process perception and adaptive control through responsive intelligent mold, realizes flexible material flow through pallet assembly 1, AGV, and roller conveyor belt 800, and realizes full-process digital management and closed-loop optimization through main control mechanism, thus constructing an efficient, high-quality, and traceable intelligent manufacturing solution for injection molded parts.

[0372] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pallet assembly for fixing the posture and supporting rectangular workpieces of different specifications, characterized in that, The tray assembly includes: The substrate is provided with a positioning chip, a first identifier, a battery, and at least three limiting posts; A tray is disposed on the substrate and is used to place workpieces; at least three limiting posts surround adjacent sides of the tray. A pushing device is disposed on the substrate and is arranged opposite to at least one of the limiting posts with the material tray as the center; the pushing device includes a push head and a driving mechanism, the driving mechanism is electrically connected to the battery, and the driving mechanism is used to drive the push head to push the workpiece placed on the material tray, so that the workpiece is clamped between the push head and the limiting post. A first acquisition device is disposed on the substrate and electrically connected to the battery. The acquisition end of the first acquisition device faces the workpiece on the material tray. The first acquisition device is used to acquire images of the second mark on the workpiece and upload them to the main control mechanism of the production line to associate the first mark with the second mark. The first acquisition device and the positioning chip cooperate with the pushing device to identify specific different workpieces according to the second mark on the workpiece and output corresponding positioning and clamping operations. At the same time, it can realize the monitoring status of the workpiece's on-line positioning. The tray is provided with a rotating shaft, and the substrate is provided with a shaft hole for mounting the rotating shaft. The shaft hole of the substrate is provided with a bearing that is sleeved with the rotating shaft.

2. The tray assembly according to claim 1, characterized in that, The driving mechanism includes an air supply device and a cylinder. The air supply device has an air storage container and is connected to the cylinder through a pipe. The output end of the cylinder is connected to the mandrel, and the cylinder drives the mandrel to move linearly.

3. The tray assembly according to claim 1, characterized in that, The top is equipped with an end cap made of flexible material.

4. The tray assembly according to claim 1, characterized in that, The surface of the tray is provided with an anti-slip pad.

5. The tray assembly according to any one of claims 1 to 4, characterized in that, The first data acquisition device includes an identification scanning device and a wireless communication module, the wireless communication module being used to upload the acquired information.

6. A smart production line for refrigerator storage components, characterized in that, It includes a main control unit, a logistics transfer unit, and a production execution unit. The main control unit, the logistics transfer unit, and the production execution unit are connected through an industrial network and a data bus to realize control commands and information exchange. The main control unit is used to receive, process, and analyze data from the production execution unit and the logistics transfer unit, and execute corresponding control commands; The production execution mechanism includes at least: The pallet assembly as described in any one of claims 1 to 5, wherein the pallet assembly is used to carry a workpiece, and the first acquisition device acquires a second identifier on the workpiece, which is then used by the main control mechanism to associate the second identifier on the workpiece with a first identifier on the pallet assembly; A positioning component for positioning the pallet assembly within each production unit of the production execution mechanism; the positioning component includes: The stop device includes a first driver and a stop for blocking the forward movement of the pallet assembly. The stop is disposed on the output end of the first driver, and the first driver is used to drive the stop to move up and down to emerge or submerge on the conveyor belt. The lifting device includes a second drive and a top platform for lifting the pallet assembly, the top platform being disposed on the output end of the second drive, the second drive being used to drive the top platform to move up and down to rise or fall on the conveyor belt. The logistics transfer mechanism includes multiple handling units, each of which includes at least a transfer device. The logistics transfer mechanism is used to transfer the pallet assembly within the production execution mechanism. The transfer device includes: The support frame is equipped with a track; A robotic arm, mounted on a track of the support and extending downward, is used to grip or place the tray assembly; A third actuator is disposed on the track of the bracket, and the third actuator is used to drive the robotic arm to move along the track; The production execution mechanism also includes: An injection molding unit includes an injection molding machine and molds for matching different workpieces, wherein the molds are mounted on the injection molding machine; The coding unit includes a coding device for generating the second mark on the workpiece; The finishing unit includes a machine tool for finishing workpieces; The detection unit includes an image acquisition device, which is used to perform visual comparison detection based on the workpiece image acquired by the image acquisition device. A cleaning unit includes a cleaning device for cleaning workpieces; The sorting unit includes multiple robotic arms or multiple transfer devices, which are used to sort the workpieces separately. Packaging unit, used for packaging workpieces; The pallet assembly carries the workpieces between the trimming unit, the inspection unit, the cleaning unit, the sorting unit, and the packaging unit. Each of the trimming unit, the detection unit, the cleaning unit, the sorting unit, and the packaging unit is equipped with a second acquisition device for acquiring the first mark on the pallet assembly. The second acquisition device is electrically connected to the main control mechanism via a wired connection or a wireless communication module. The mold includes a fixed mold and a moving mold. The fixed mold is equipped with a first temperature sensor group, which is used to detect the temperature of the cooling water flow in the cooling pipes on the fixed mold. The moving mold is equipped with a second temperature sensor group, which is used to detect the temperature of the cooling water flow in the cooling pipes on the moving mold. The mold cavity is also equipped with a pressure sensor, which is used to monitor the pressure change in the cavity during the injection filling and holding stages; the first temperature sensor group, the second temperature sensor group and the pressure sensor form a full-sensor network module.

7. The intelligent production line for refrigerator storage components according to claim 6, characterized in that, The mold has at least two cavities, and each cavity is equipped with the pressure sensor.

8. The intelligent production line for refrigerator storage components according to claim 7, characterized in that, The packaging unit includes a film-coating device, a box-insertion device, a labeling device, and a quality inspection device. The film-coating device is used to apply a protective film to the workpiece; the box-insertion device is used to insert multiple workpieces into a packaging box; the labeling device is used to print and affix labels to the packaging box of the workpiece; and the quality inspection device is used to scan and re-inspect the appearance of the packaged workpiece or the labels.

9. The intelligent production line for refrigerator storage components according to claim 6, characterized in that, The sorting unit includes a first robotic arm or a first transfer device, which is mounted on the detection unit and is used to remove and divert workpieces that fail the detection.

10. The intelligent production line for refrigerator storage components according to claim 6, characterized in that, The sorting unit further includes a second robotic arm or a second transfer device, which is disposed between the cleaning unit and the packaging unit for diverting workpieces to the packaging unit or other final assembly processes.

11. The intelligent production line for refrigerator storage components according to claim 6, characterized in that, The sorting unit also includes a third robotic arm or a third transfer device, which is located in the packaging unit and is used to remove and divert workpieces that are not packaged properly.

12. The intelligent production line for refrigerator storage components according to claim 6, characterized in that, The logistics transfer mechanism also includes a roller conveyor belt, which is disposed between the trimming unit, the detection unit, the cleaning unit, the sorting unit, and the packaging unit, and the pallet assembly is movable on the roller conveyor belt.

13. The intelligent production line for refrigerator storage components according to claim 6, characterized in that, The positioning assembly also includes a base for supporting the stop device and the lifting device, the stop device and the lifting device being respectively disposed on the base.

14. The intelligent production line for refrigerator storage components according to claim 13, characterized in that, The lifting device is provided in two parts, and the two lifting devices are arranged sequentially along the length direction of the base; when the stop device stops the pallet assembly, the two lifting devices cooperate with the position of the base plate in the pallet assembly.

15. The intelligent production line for refrigerator storage components according to claim 6, characterized in that, The third driver includes a motor, a gear set, and a rack. The output end of the motor, the gear set, and the rack are sequentially connected. The rack is connected to the robotic arm. The motor drives the rack to move linearly through the gear set.

16. The intelligent production line for refrigerator storage components according to claim 6, characterized in that, The robotic arm includes a fourth actuator and a gripper. The gripper is disposed on the output end of the fourth actuator and is capable of gripping the substrate in the tray assembly from both sides. The fourth actuator is used to drive the gripper to move up and down.

17. The intelligent production line for refrigerator storage components according to claim 16, characterized in that, The gripper includes a fifth actuator and a pair of linkage frames. The pair of linkage frames are symmetrically arranged with respect to the fifth actuator. One end of the pair of linkage frames is a gripping end, and the other end is connected via a connecting bar shaft. The output end of the fifth driver is connected to the connecting bar and is used to drive the connecting bar to move outward or retract, so that the clamping ends of the pair of linkage frames move closer or further apart about the lever point.

18. The intelligent production line for refrigerator storage components according to claim 17, characterized in that, Each of the pair of linkage frames is provided with a clamping plate at its clamping end, and the clamping plate is used to make surface contact with the side of the base plate in the tray assembly.

Images