A magnetic steel hot pressing device

By introducing a multi-station automatic turntable and pressure sensor detection into the magnetic hot pressing device, and combining the coordinated work of the clamping mechanism and the hot pressing device, the problem of requiring a complete shutdown for local faults in the existing technology has been solved, achieving efficient automated production and rapid fault handling.

CN224426617UActive Publication Date: 2026-06-30DONGYANG CANHONG MAGNETIC IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-06
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing magnetic steel hot pressing equipment requires a complete shutdown for troubleshooting when a partial fault occurs, resulting in low production efficiency and waste of resources.

Method used

The system employs multiple processing tables on the turntable surface, servo motors, and control devices, combined with a vibrating feeding tray and clamping mechanism, to achieve automatic workpiece transfer and continuous processing. Anomalies are detected by pressure sensors, allowing for manual intervention to stop the machine and automatic restart. The hot pressing device works in conjunction with the turntable station switching to form a multi-station cyclic processing system.

Benefits of technology

It reduced staff involvement and labor intensity, improved production efficiency and yield, enabled flexible production line start-up and shutdown, shortened troubleshooting time, and reduced labor and equipment costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application belongs to the technical field of magnetic steel processing equipment, and particularly relates to a magnetic steel hot pressing device, comprising: a turntable with multiple processing tables on its surface; a vibrating feeding plate disposed on one side of the turntable for feeding; a clamping mechanism disposed above the turntable for transporting the workpieces transported by the vibrating feeding plate to the processing tables; and a hot pressing device disposed on the turntable for hot pressing the workpieces on the processing tables; wherein, a servo motor is disposed at the bottom of the turntable, the servo motor is connected to a control device, and the control device is connected to the clamping mechanism, the hot pressing device, and a pressure sensor. The beneficial effects of this application are: by setting multiple processing tables on the turntable surface, in conjunction with the servo motor and control device, automatic workpiece flow is achieved; the vibrating feeding plate and the clamping mechanism work together to feed, forming a continuous processing flow, significantly reducing worker involvement and workload, lowering labor costs, and improving work efficiency and magnetic steel yield.
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Description

Technical Field

[0001] This application belongs to the technical field of magnetic steel processing equipment, and particularly relates to a magnetic steel hot pressing device. Background Technology

[0002] In recent years, significant progress has been made in the automation technology of magnetic steel hot pressing devices. By introducing robotic arms, sensors, and PLC control systems, the entire process from workpiece conveying, positioning, hot pressing to unloading has been automated. For example, the patent with publication number CN202220465024 designed multiple sets of hydraulic cylinders and heating tubes, and achieved multi-station synchronous hot pressing through upper and lower hot pressing plates made of copper alloy.

[0003] Despite breakthroughs in automation and production efficiency, current technologies still have significant shortcomings in fault handling mechanisms. Currently, mainstream hot pressing equipment typically requires a complete line shutdown for troubleshooting and repair when encountering a partial fault, leading to multiple negative impacts and necessitating improvements. Utility Model Content

[0004] The purpose of this application is to provide a magnetic steel hot pressing device that can solve the above-mentioned problems.

[0005] The purpose of this application is to provide a magnetic steel hot pressing device, comprising:

[0006] A rotary table with multiple processing tables on its surface;

[0007] A vibrating feeder, located on one side of the turntable, is used for feeding materials;

[0008] The clamping mechanism, located above the turntable, is used to transport the workpiece from the vibrating feeder to the processing table.

[0009] A hot pressing device is installed on a turntable and is used to hot press the workpiece on the processing table.

[0010] The turntable is equipped with a servo motor at its bottom, which is connected to a control device. The control device is connected to the gripping mechanism, the hot pressing device, and the pressure sensor.

[0011] The aforementioned magnet hot pressing device features multiple processing tables on the turntable surface. Combined with a bottom servo motor and control device, it enables automatic transfer of workpieces between different workstations. The vibrating feeding tray and clamping mechanism work together to feed the workpieces. Combined with the periodic rotation of the turntable, the workpieces can sequentially undergo feeding, hot pressing, and other processes, forming a continuous processing flow. Compared to traditional single-station hot pressing devices, this significantly reduces the involvement of workers on the production line, requiring only one worker per production line. It also greatly reduces the workload of workers, decreases economic expenditure on human resources, and improves work efficiency and the yield rate of magnet processing.

[0012] Furthermore, the control device includes:

[0013] The first pressure sensor is located at the bottom of the processing table and is used to detect the pressure changes generated by the workpiece on the processing table in real time.

[0014] The second pressure sensor is installed on the turntable and is used to detect the pressure changes of the workpiece and the processing table on the turntable in real time.

[0015] It also includes a control system, which includes a PLC control unit for receiving pressure signals from the first pressure sensor and the second pressure sensor.

[0016] The first pressure sensor detects the pressure in real time. When the first pressure sensor detects the pressure during processing, the turntable will rotate. That is, after the gripper places the workpiece on the processing table, when the pressure of the workpiece is detected, the turntable rotates. The rotation angle here is 90°. After rotation, the hot pressing device hot presses the workpiece. After the hot pressing is completed, the turntable continues to rotate 90°. This cycle is repeated to process the workpiece continuously.

[0017] By installing a second pressure sensor on the turntable to detect whether a worker is pressing down on the processing table, when an error occurs, the worker simply grasps the table and applies downward pressure. The second pressure sensor transmits a pressure signal back to the PLC control unit, which then sends a stop signal to the servo motor. This stops the turntable and the production line, allowing the erroneous workpiece to be removed. After removing the workpiece, the worker simply releases their grip, and the PLC control unit, based on the feedback from the second pressure sensor, sends a working signal back to the servo motor, restarting the turntable and resuming the production line. This significantly improves processing efficiency. This manual intervention method eliminates the need for system-wide shutdown for troubleshooting; it only addresses the current processing table's anomaly. Once the erroneous workpiece is removed and the worker releases their grip, the production line automatically restarts based on the pressure signal change. This solves the problem of having to stop the entire line for a localized fault in existing technologies, enabling flexible start-stop of the production line, significantly reducing troubleshooting time and downtime losses.

[0018] Furthermore, the control device also includes an alarm device, and a PLC control unit is used to control the alarm device.

[0019] The alarm device is linked with the PLC control unit and can issue timely warnings when there are abnormalities in the processing, such as abnormal pressure or machine shutdown. This allows staff to quickly locate and handle the problem, avoiding subsequent processing errors or equipment damage caused by delayed problem detection. In addition, the alarm device is installed on the machine frame, making it more conspicuous.

[0020] Furthermore, the clamping mechanism includes:

[0021] The conveyor belt is located between the vibrating feeder and the turntable;

[0022] The frame is located above the conveyor belt, and its bottom is equipped with grippers. The alarm device is installed on the frame.

[0023] The drive assembly is mounted on the rack and connected to the gripper.

[0024] The gripper is used to pick up the workpiece from the discharge port of the vibrating feeder and place it on the processing table of the turntable. The control device detects the pressure change of the processing table and controls the turntable to rotate.

[0025] In this application, the conveyor belt, in conjunction with the gripper, automatically picks up and transports the workpiece from the vibrating feed tray's outlet to the turntable processing table. This replaces manual workpiece handling, reducing labor intensity and avoiding potential errors in loading position or time delays caused by human intervention. This makes the loading process more stable and efficient. Combined with the turntable's pressure detection and rotation control, it ensures the automated and continuous operation of the entire processing flow. Furthermore, the drive component here can be a cylinder or a combination of a cylinder and a lead screw.

[0026] Furthermore, the hot pressing device includes:

[0027] The mounting frame is located on one side of the turntable. The mounting frame is equipped with a hydraulic cylinder, and the bottom of the hydraulic cylinder is equipped with an upper hot plate.

[0028] The lower hot press plate is set on the processing table, and its position corresponds to that of the upper hot press plate.

[0029] Both the upper and lower hot press plates have cavities and heating tubes inside.

[0030] The hydraulic cylinders on the mounting frame drive the upper hot press plate to cooperate with the lower hot press plate on the processing table. The internal heating tubes and cavity design of both plates enable uniform heating and stable pressure. After the turntable rotates 90°, the hot press device heats the workpiece. After completion, the turntable continues to rotate 90° to enter the next stage. This step-by-step hot press combined with turntable station switching allows the hot press process to be carried out simultaneously with loading and unloading processes, forming a multi-station cyclic processing mode, reducing equipment idle time, and improving hot press efficiency and production rhythm.

[0031] Furthermore, the hot pressing device also includes a control box, which is electrically connected to the hydraulic cylinder and the heating pipe via wires.

[0032] The control box connects the hydraulic cylinder and the heating tube electrically to achieve precise control of pressure and temperature during the hot pressing process, ensuring stable hot pressing process parameters. Combined with the automated process of the turntable, this further improves the consistency of workpiece hot pressing quality.

[0033] The beneficial effects of this application are:

[0034] 1. By setting multiple processing tables on the surface of the turntable, and cooperating with servo motors and control devices, the workpieces are automatically transferred. The vibrating feeding tray and the clamping mechanism work together to feed the workpieces, forming a continuous processing flow. This greatly reduces the number of workers involved and their workload, lowers labor costs, and improves work efficiency and the yield of finished magnetic steel products.

[0035] 2. The second pressure sensor allows workers to trigger a shutdown by applying pressure. After the erroneous workpiece is processed and the worker releases their hand, the production line automatically restarts. There is no need to check the entire system, which enables flexible start and stop. It can effectively solve the problem of having to stop the entire line due to a local fault, shorten the fault handling time, and reduce downtime losses.

[0036] 3. The clamping mechanism automatically clamps the workpiece to the processing table, replacing manual handling and avoiding loading deviations and delays. The hot pressing device and the turntable switch work together to form a multi-station cyclic processing mode. The control box controls the pressure and temperature to ensure the stability of the hot pressing process and improve the consistency of the hot pressing quality of the workpiece. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of this utility model;

[0038] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0039] Figure 3 This is a top view of the present invention;

[0040] Figure 4 This is a schematic diagram of the structure of the hot press plate of this utility model;

[0041] Figure 5 This is a connection diagram of the control device of this utility model.

[0042] The attached figures are labeled as follows: 100, turntable; 110, processing table; 200, vibrating feeder; 300, clamping mechanism; 310, conveyor belt; 320, frame; 330, gripper; 340, drive assembly; 400, hot pressing device; 410, mounting bracket; 420, hydraulic cylinder; 430, upper hot pressing plate; 440, lower hot pressing plate; 450, cavity; 460, heating tube; 470, control box; 500, control device; 510, first pressure sensor; 520, second pressure sensor; 530, PLC control unit; 540, alarm device. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0044] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0045] The magnetic steel hot pressing device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0046] Example 1:

[0047] like Figures 1 to 3 As shown, this application embodiment provides a magnetic steel hot pressing device 400, including:

[0048] A rotary table 100 has multiple processing tables 110 on its surface;

[0049] A vibrating feeder 200 is located on one side of the turntable 100 and is used for feeding materials;

[0050] The clamping mechanism 300 is located above the turntable 100 and is used to transport the workpiece transported by the vibrating feeder 200 to the processing table 110.

[0051] A hot pressing device 400 is installed on the turntable 100 and is used to hot press the workpiece on the processing table 110.

[0052] The turntable 100 is equipped with a servo motor at its bottom, which is connected to a control device 500. The control device 500 is connected to the clamping mechanism 300, the hot pressing device 400, and the pressure sensor.

[0053] In some embodiments of this application, such as Figure 1As shown, the above-mentioned magnet hot pressing device 400 has multiple processing tables 110 on the surface of the turntable 100. With the help of the bottom servo motor and control device 500, the workpiece can be automatically transferred between different workstations. The vibrating feeding plate 200 and the clamping mechanism 300 work together to feed the workpiece. Combined with the periodic rotation of the turntable 100, the workpiece can go through feeding, hot pressing and other processes in sequence to form a continuous processing flow. Compared with the traditional single-station hot pressing device 400, it can greatly reduce the participation of workers on the production line. Only one worker is needed on a production line. It can also greatly reduce the workload of workers, reduce the economic expenditure on human resources, and improve work efficiency and the yield of magnet processing.

[0054] Example 2:

[0055] This application provides a magnetic steel hot pressing device, which, in addition to the above-mentioned technical features, also includes the following technical features.

[0056] like Figure 5 As shown, the control device 500 includes:

[0057] The first pressure sensor 510 is located at the bottom of the processing table 110 and is used to detect the pressure changes generated by the workpiece on the processing table 110 in real time.

[0058] The second pressure sensor 520 is installed on the turntable 100 and is used to detect the pressure changes generated by the workpiece and the processing table 110 on the turntable 100 in real time.

[0059] It also includes a control system, which includes a PLC control unit 530, which is used to receive pressure signals fed back by the first pressure sensor 510 and the second pressure sensor 520.

[0060] In this embodiment, the first pressure sensor 510 detects pressure in real time. When the first pressure sensor 510 detects pressure during processing, the turntable 100 will rotate. That is, after the gripper 330 places the workpiece on the processing table 110, the turntable 100 will rotate when the pressure of the workpiece is detected. The rotation angle here is 90°. After rotation, the hot pressing device 400 hot presses the workpiece. After the hot pressing is completed, the turntable 100 continues to rotate 90°, and so on to continuously process the workpiece.

[0061] By installing a second pressure sensor 520 on the turntable 100 to detect whether a worker is pressing down on the processing table 110, when an error occurs during processing, the worker only needs to grasp the processing table 110 and apply a certain amount of downward pressure. The second pressure sensor 520 will then transmit a pressure signal back to the PLC control unit 530, which will send a stop signal to the servo motor. This will stop the turntable 100 and the production line. The erroneous workpiece can then be removed from the processing table 110. After that, simply releasing the hand will cause the PLC control unit 530 to send a working signal back to the servo motor based on the feedback signal from the second pressure sensor 520, causing the turntable 100 to rotate again and the production line to restart, effectively improving processing efficiency. This manual intervention method eliminates the need to stop the entire system for troubleshooting; it only addresses the current abnormality of the processing table 110. After removing the erroneous workpiece and releasing the hand, the production line will automatically restart based on the pressure signal change. This solves the problem of having to stop the entire line for a partial fault in existing technologies, enabling flexible start and stop of the production line, significantly shortening fault handling time, and reducing downtime losses.

[0062] Furthermore, the control device 500 also includes an alarm device 540, and the PLC control unit 530 is used to control the alarm device 540.

[0063] The alarm device 540 is linked with the PLC control unit 530, which can issue a timely warning when there is a processing abnormality, such as abnormal pressure or machine shutdown. This makes it easier for staff to quickly locate and deal with the problem, avoiding subsequent processing errors or equipment damage caused by the problem not being detected in time. In addition, the alarm device 540 is mounted on the frame 320, making it more conspicuous.

[0064] Example 3:

[0065] This application provides a magnetic steel hot pressing device, which, in addition to the above-mentioned technical features, also includes the following technical features.

[0066] like Figures 1 to 3 As shown, the clamping mechanism 300 includes:

[0067] The conveyor belt 310 is located between the vibrating feed plate 200 and the turntable 100;

[0068] The frame 320 is located above the conveyor belt 310, and the bottom of the frame is equipped with a gripper 330. The alarm device 540 is installed on the frame 320.

[0069] The drive assembly 340 is mounted on the frame 320 and connected to the gripper 330;

[0070] The gripper 330 is used to clamp the workpiece on the discharge port of the vibrating feed plate 200 onto the processing table 110 of the turntable 100. The control device 500 detects the pressure change of the processing table 110 and controls the turntable 100 to rotate.

[0071] In this embodiment, the conveyor belt 310 cooperates with the gripper 330 to automatically pick up the workpiece from the discharge port of the vibrating feed plate 200 and transport it to the processing table 110 of the turntable 100. This replaces the manual operation of picking up and placing workpieces, reducing the intensity of manual labor and avoiding the deviation in loading position or time delay that may be caused by manual operation. This makes the loading process more stable and efficient. Combined with the pressure detection and rotation control of the turntable 100, it ensures the automated and continuous operation of the entire processing flow. Meanwhile, the drive component 340 can be a cylinder or a combination of a cylinder and a lead screw.

[0072] Example 4:

[0073] This application provides a magnetic steel hot pressing device, which, in addition to the above-mentioned technical features, also includes the following technical features.

[0074] like Figures 1 to 4 As shown, the hot pressing device 400 includes:

[0075] Mounting bracket 410 is located on one side of turntable 100. Hydraulic cylinder 420 is mounted on mounting bracket 410. Upper hot plate 430 is mounted on bottom of hydraulic cylinder 420.

[0076] The lower hot press plate 440 is set on the processing table 110, and its position corresponds to that of the upper hot press plate 430.

[0077] The upper hot press plate 430 and the lower hot press plate 440 are both provided with cavities 450 and heating tubes 460.

[0078] In this embodiment, the hydraulic cylinder 420 on the mounting frame 410 drives the upper hot press plate 430 to cooperate with the lower hot press plate 440 on the processing table 110. The heating tube 460 and cavity 450 inside both plates are designed to achieve uniform heating and stable pressure. After the turntable 100 rotates 90°, the hot press device 400 hot presses the workpiece. After completion, the turntable 100 continues to rotate 90° to enter the next stage. This step-by-step hot press combined with the turntable 100 station switching method allows the hot press process to be carried out simultaneously with the loading and unloading processes, forming a multi-station cyclic processing mode, reducing equipment idle time, and improving hot press efficiency and production rhythm.

[0079] Furthermore, the hot pressing device 400 also includes a control box 470, which is connected to the hydraulic cylinder 420 and the heating tube 460 via wires, and the three are electrically connected.

[0080] The control box 470 is electrically connected to the hydraulic cylinder 420 and the heating tube 460 to achieve precise control of pressure and temperature during the hot pressing process, ensuring stable hot pressing process parameters. Combined with the automated process of the turntable 100, it further improves the consistency of workpiece hot pressing quality.

[0081] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0082] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A magnetic steel hot-pressing apparatus (400), characterized by: include: A turntable (100) has multiple processing tables (110) on its surface; A vibrating feeder (200) is located on one side of the turntable (100) and is used for feeding materials; A clamping mechanism (300) is located above the turntable (100) and is used to transport the workpiece transported by the vibrating feeder (200) to the processing table (110). A hot pressing device (400) is installed on a turntable (100) for hot pressing workpieces on a processing table (110); The turntable (100) is equipped with a servo motor at its bottom. The servo motor is connected to a control device (500). The control device (500) is connected to the clamping mechanism (300), the hot pressing device (400), and the pressure sensor.

2. The magnetic steel hot-pressing device (400) according to claim 1, characterized in that: The control device (500) includes: The first pressure sensor (510) is located at the bottom of the processing table (110) and is used to detect the pressure changes generated by the workpiece on the processing table (110) in real time. The second pressure sensor (520) is installed on the turntable (100) and is used to detect the pressure changes generated by the workpiece and the processing table (110) on the turntable (100) in real time. It also includes a control system, which includes a PLC control unit (530) for receiving pressure signals fed back from the first pressure sensor (510) and the second pressure sensor (520).

3. The magnetic steel hot-pressing device (400) according to claim 2, characterized in that: The control device (500) also includes an alarm device (540), and a PLC control unit (530) is used to control the alarm device (540).

4. The magnetic steel hot-pressing device (400) according to claim 3, characterized in that: The clamping mechanism (300) includes: The conveyor belt (310) is located between the vibrating feed plate (200) and the turntable (100); A rack (320) is located above the conveyor belt (310), and a gripper (330) is provided at its bottom. An alarm device (540) is installed on the rack (320). A drive assembly (340) is mounted on a frame (320) and connected to a gripper (330); The gripper (330) is used to clamp the workpiece on the discharge port of the vibrating feed plate (200) onto the processing table (110) of the turntable (100). The control device (500) detects the pressure change of the processing table (110) and controls the turntable (100) to rotate.

5. The magnetic steel hot-pressing device (400) according to claim 4, characterized in that: The hot pressing device (400) includes: A mounting bracket (410) is provided on one side of the turntable (100). A hydraulic cylinder (420) is provided on the mounting bracket (410), and an upper hot plate (430) is provided at the bottom of the hydraulic cylinder (420). The lower hot press plate (440) is set on the processing table (110), and its position corresponds to that of the upper hot press plate (430); The upper hot platen (430) and the lower hot platen (440) are both provided with cavities (450) and heating tubes (460).

6. The magnetic steel hot-pressing device (400) according to claim 5, characterized in that: The hot pressing device also includes a control box (470), which is connected to the hydraulic cylinder (420) and the heating tube (460) via wires, and the three are electrically connected.

Citation Information

Patent Citations

  • Multi-station magnetic steel hot pressing mechanism

    CN217474534U