A plastic sealing material temperature recovery device

Abstract

The application provides a plastic sealing material temperature recovery device, which comprises a cabinet body and a plurality of independent storage cavities in the cabinet body, each of the storage cavities is provided with a closed door, and each of the closed doors is provided with an electronic lock; a temperature sensor is arranged in at least part of the storage cavities and is used for sensing the real-time temperature in the corresponding cavity; a controller is in communication connection with the electronic lock and the temperature sensor, can judge the plastic sealing material temperature recovery state in the corresponding storage cavity based on the temperature information fed back by the temperature sensor, and control the opening and closing of the corresponding electronic lock according to the judgment result. The plastic sealing material temperature recovery device provided by the application can realize real-time monitoring of the temperature in the storage cavities through an intelligent monitoring and management system, automatically adjust the temperature recovery process through intelligent control, and ensure complete temperature recovery of the plastic sealing material.

Description

Technical Field

[0001] This application relates to the field of packaging and testing technology, and in particular to a molding compound reheating device. Background Technology

[0002] In the field of integrated circuit packaging and testing, the molding process is one of the key steps, and its quality directly affects the reliability of the chip. The molding process typically uses a large amount of epoxy molding compound. To maintain its chemical stability, it needs to be stored in a low-temperature environment of -3°C to 5°C, and then brought to room temperature for warming before use. If the warming is incomplete, problems such as poor material flowability and uneven stress can lead to defects such as delamination and bubbles in the packaged product, resulting in large-scale scrap. Furthermore, the production line uses a wide variety of molding compound types, and manual material handling and verification can easily lead to mis-issuance and incorrect issuance, which can also cause the entire batch of products to fail.

[0003] Therefore, there is an urgent need for a technical solution that can monitor or precisely control the reheating process of molding compound in order to improve the reliability of the packaging process and terminal chip products. Utility Model Content

[0004] In view of the defects and deficiencies in the prior art described above, this application provides a molding compound warming device, which greatly reduces the production risks caused by incomplete warming and incorrect material requisition through a variety of real-time monitoring and control methods.

[0005] This application provides a molding compound warming device, comprising:

[0006] The cabinet has multiple independent storage cavities inside, and each storage cavity is equipped with a closed door;

[0007] Multiple electronic locks, each of which is correspondingly installed on the closed door of one of the storage cavities;

[0008] A temperature sensor is disposed in at least a portion of the storage cavity for sensing the real-time temperature within the corresponding cavity;

[0009] A controller, located inside the cabinet, is communicatively connected to the electronic lock and the temperature sensor. The controller receives signals from the temperature sensor and controls the opening and closing of the corresponding electronic lock based on these signals. This technical solution achieves real-time monitoring of the storage cavity temperature through the temperature sensor. The controller automatically determines the warming status of the molding compound based on a preset temperature threshold and warming time, thereby achieving precise control and preventing incomplete warming.

[0010] In some embodiments, the system further includes an auxiliary temperature control module disposed within at least a portion of the storage cavity and communicatively connected to the controller. The auxiliary temperature control module includes at least one of a heating unit and a ventilation unit. The controller receives temperature information from the temperature sensor and controls the auxiliary temperature control module to open and close, thereby adjusting the temperature within the corresponding storage cavity. The controller can activate heating to accelerate temperature rise or activate ventilation to equalize the temperature gradient within the cavity, based on the difference between the measured temperature and the target temperature, preventing localized overheating or uneven temperature recovery.

[0011] In some embodiments, multiple temperature sensors are disposed within the storage cavity, with each sensor located at a different spatial position, either near or far from the auxiliary temperature control module. Multi-point temperature monitoring avoids localized temperature deviations and ensures uniform temperature recovery for the large-volume molding compound.

[0012] In some embodiments, a humidity sensor is also provided within the storage cavity, and the humidity sensor is communicatively connected to the controller. The controller receives feedback information from the temperature sensor and the humidity sensor to determine the temperature recovery and dehumidification status of the molding compound, and controls the operating mode of the auxiliary temperature control module. Adding a humidity monitoring module for timely adjustment can prevent moisture from affecting the molding compound, further improving its quality.

[0013] In some implementations, the system further includes: a cavity identifier, uniquely located on the exterior of each of the closed doors; a material identifier, associated with the plastic sealant packaging to be reheated; and an identification device, communicatively connected to the controller, for reading information from the cavity identifier and the material identifier. After the identification device verifies a successful match between the material identifier and the cavity identifier, the controller, based on information fed back from the temperature sensor, performs opening and closing control of the electronic lock. When an operator retrieves materials, they must simultaneously verify that the material's model information and preset storage location are correctly matched before the controller allows unlocking, completely eliminating production accidents caused by human error in material retrieval.

[0014] In some embodiments, the cavity identifier and / or the material identifier is a QR code label or an RFID label; the identification device is a corresponding QR code scanner or an RFID reader / writer.

[0015] In some embodiments, a status indicator device is also included, which is disposed on the cabinet or the closed door, for displaying the temperature recovery status and / or material information of all the storage cavities contained in the cabinet. This allows operators to monitor the status of all materials, facilitating production scheduling and management.

[0016] In some implementations, the controller is connected to an alarm device that can issue an alert when the temperature of the storage cavity is abnormal or when there is unauthorized operation.

[0017] In some embodiments, the closed door has a viewing window.

[0018] In some embodiments, the cabinet has a length between 80cm and 120cm, a width between 20cm and 50cm, and a height between 100cm and 200cm; each cabinet includes at least 2×3 independent storage cavities. This size of cabinet and the number of storage cavities can be well adapted to the spatial layout of existing packaging workshops and can ensure sufficient storage capacity.

[0019] Compared with the prior art, the technical solution provided in this application has at least the following beneficial effects:

[0020] The molding compound warming equipment provided in this application, through an intelligent monitoring and management system, can monitor the temperature and humidity inside the storage chamber in real time. It automatically adjusts the warming process through intelligent control, ensuring complete and uniform warming of the molding compound. Simultaneously, the equipment employs matching verification between chamber markings and material markings, combined with electronic locks to control the opening and closing of the storage chamber, preventing the misuse of incompletely warmed molding compound and unauthorized operations, thus improving the safety and reliability of the production process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external structure of the cabinet of the molding compound warming equipment provided in this application.

[0022] Figure 2 This is a schematic diagram of the internal layout of the cabinet of the molding compound warming equipment provided in this application.

[0023] Figure 3 This is a schematic diagram of a storage cavity provided in this application.

[0024] Figure 4 A schematic diagram illustrating the control principle of the molding compound warming device provided in this application.

[0025] List of reference numerals in the attached diagram:

[0026] 10. Cabinet; 11. Status indicator; 12. Alarm device; 20. Storage cavity; 21. Sealing door; 22. Cavity identification; 30. Electronic lock; 40. Temperature sensor; 41. First temperature sensor; 42. Second temperature sensor; 50. Heating unit; 60. Ventilation unit; 70. Humidity sensor; 80. Controller. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0028] This embodiment provides a molding compound warming device, which is described below in conjunction with... Figures 1 to 4 This application provides a detailed description of the technical solution provided.

[0029] See Figure 1 and Figure 2 The device includes a cabinet 10 and multiple independent storage cavities 20 inside the cabinet 10. Each storage cavity 20 is equipped with a sealing door 21, and each sealing door 21 is equipped with an electronic lock 30. A temperature sensor 40 is also installed inside each storage cavity 20 to sense the real-time temperature within the corresponding cavity. A controller 80 is communicatively connected to the electronic lock 30 and the temperature sensor 40. Based on the temperature information fed back by the temperature sensor 40, the controller 80 can determine the warming status of the molding compound inside the corresponding storage cavity 20 according to a preset temperature threshold and warming time. Based on the determination result, the controller 80 controls the opening and closing of the corresponding electronic lock 30, thereby controlling the warming process of the molding compound and preventing incomplete warming during material requisition. It is understandable that the controller 80 can also control the opening or closing of the electronic lock 30 solely based on the warming time, selecting the appropriate function according to the actual production needs.

[0030] See Figure 1 and Figure 2The cabinet 10 provided in this embodiment has a length between 80cm and 120cm, such as 90cm, 95cm, 100cm, or 110cm. The width of the cabinet 10 is between 20cm and 50cm, such as 25cm, 40cm, or 45cm. The height of the cabinet 10 is between 100cm and 200cm, such as 120cm, 150cm, or 180cm, to facilitate loading and unloading by operators. Preferably, the cabinet provided in this embodiment is a vertical cabinet, and each cabinet includes at least 2×3 independent storage cavities, such as 2×4, 3×4, or 2×5. The dimensions of each storage cavity 20 can be set to 40cm×35cm×35cm or approximately the same size. The cavity dimensions are designed with reference to the packaging dimensions of each batch of plastic sealant. For most plastic sealants currently used in the factory, they all adopt the same packaging specifications; therefore, the structural size of the storage cavity 20 can also be designed with the same parameters. The dimensions and quantity of the cabinet 10 and storage chambers 20 described above can be well adapted to the spatial layout of the existing packaging workshop and can ensure sufficient storage capacity. Understandably, all storage chambers 20 can have the same size, or a small number of other chamber sizes can be set to meet the needs of different scenarios.

[0031] See Figure 2 and Figure 3 First of all, it should be noted that Figure 2 This illustration shows the selection and configuration of different functional modules in different storage cavities 20, primarily for the purpose of explaining the technical solutions of the embodiments. The reheating device provided in this embodiment also includes an auxiliary temperature control module, which includes at least one of a heating unit 50 and a ventilation unit 60. The auxiliary temperature control module is fixedly installed on the rear wall or top of the storage cavity 20, and can be located in part or all of the storage cavities. It is connected to the controller 80 via a dedicated cable or through communication. The controller 80 controls the opening and closing of the auxiliary temperature control module based on the temperature information fed back by the temperature sensor 40 to adjust the state within the corresponding storage cavity.

[0032] In some implementations, the auxiliary temperature control module includes a heating unit 50 and a ventilation unit 60.

[0033] Optionally, the heating unit 50 may employ a general heating device such as a ceramic heating element or a heating tube, or an integrated independent finned heat sink. It can be positioned inside the storage cavity 20 close to its inner wall, for example, on the bottom surface of the cavity. A support frame is also installed above the heating unit 50 to hold the molding compound. The controller 80 can determine whether to activate the heating unit 50 to accelerate heating based on the difference between the measured temperature and the target temperature.

[0034] Optionally, the ventilation unit 60 uses a ventilation fan, which is installed at the top or side wall vent of the storage cavity 20 and connected to the air duct formed by the housing of the storage cavity 20 and the cabinet 10. In the initial stage of reheating, the ventilation unit 60 can quickly blow the heat generated by the heating unit 50 to all parts of the cavity, accelerating the overall temperature rise. In the later stage of reheating or when the ambient temperature is high, the ventilation unit 60 can also operate independently to ensure uniform reheating of the molding compound. In actual production, since the molding compound is taken out from a sub-zero temperature environment for reheating, its humidity will also change during the reheating process. During the reheating process, only the ventilation unit 60 can be turned on to ensure a dry environment inside the storage cavity 20. When the controller 80 detects through the temperature sensor 40 that the temperature inside a certain cavity is lower than the preset reheating target value and the difference is large, it sends a command to the auxiliary temperature control module of that cavity to simultaneously start the heating unit 50 and the ventilation unit 60 for rapid heating mode. When the temperature approaches the target value, the controller 80 shuts down the heating unit 50 and only maintains the ventilation unit 60 at a low speed, entering the temperature balance mode. It uses residual heat and air circulation to slowly and evenly reach and stabilize the temperature within the target range.

[0035] See Figure 4 In some embodiments, multiple temperature sensors 40 are disposed within the storage cavity 20, located at different spatial positions near or away from the auxiliary temperature control module. Specifically, the temperature sensors 40 include a first temperature sensor 41 and a second temperature sensor 42. The first temperature sensor 41 is installed near the center of the top plate of the storage cavity 20 to obtain temperature changes in the center of the cavity. The second temperature sensor 42 is installed on the side wall of the cavity away from the ventilation unit 60, in a dead zone area where heat exchange inside the cavity may be least efficient. Figure 4 Only one installation position is shown. The position of the second temperature sensor 42 varies depending on the location of the ventilation unit 60. Understandably, temperature changes at the second temperature sensor 42 are lagging. If only the first temperature sensor 41 is used for single-point temperature measurement, the controller 80 might prematurely determine that the entire cavity has reached the target temperature. However, at this time, the material portion far from the heat source is still in an incomplete warming state. Therefore, two-point temperature monitoring effectively avoids localized temperature deviations and ensures uniform warming of large volumes of molding compound. Based on this, the controller 80 is also configured to simultaneously collect and process data from the first temperature sensor 41 and the second temperature sensor 42. Once the difference between the two sensor readings reaches a preset range, the electronic lock 30 is activated to allow operators to open the container and retrieve the material. Optionally, the first temperature sensor 41 can be installed below the support frame inside the cavity, bringing the temperature measurement point closer to the molding compound and reducing measurement errors caused by airflow within the storage cavity 20.

[0036] See also Figure 4In some embodiments, a humidity sensor 70 is also provided in the storage cavity 20. The humidity sensor 70 is communicatively connected to the controller 80. The controller 80 can determine the warming and dehumidification status of the molding compound based on the feedback information from the temperature sensor 40 and the humidity sensor 70, and control the working mode of the auxiliary temperature control module. This can avoid the influence of moisture on the molding compound, ensure that the molding compound maintains good properties during the warming process, and further improve the quality of the molding compound.

[0037] See Figures 1 to 2 The reheating device provided in this embodiment also includes a cavity identifier 22 and a material identifier. The cavity identifier 22 is uniquely set on the outside of each closed door 21. This identifier can be determined when the cabinet leaves the factory and is bound to an address in the controller 80. The material identifier is used to associate with the plastic sealant packaging to be reheated. When each box of plastic sealant leaves the factory, a label containing information such as the material model and batch number is affixed to its outer packaging as a material identifier. The reheating device is also equipped with an identification device for communication with the controller, used to read the information of the cavity identifier 22 and the material identifier. After the controller 80 verifies that the information of the material identifier 22 and the cavity identifier is successfully matched through the identification device, it can execute the opening and closing control of the electronic lock 30 based on the information fed back by the temperature sensor 40. That is, when the operator retrieves the material, he must verify that the material model information and the preset storage location are correctly matched before the controller 80 allows the lock to be opened. The above multiple safety verification measures completely eliminate production accidents caused by human error in retrieving materials.

[0038] Optionally, the cavity identifier 22 can be a QR code label or an RFID label.

[0039] Optionally, the material identification may be a QR code label or an RFID label.

[0040] Optionally, the identification device is a QR code scanner or RFID reader / writer corresponding to the cavity identifier 22 and the material identifier. Specifically, the identification device can be a handheld PDA. This PDA has a built-in QR code scanning engine and management software installed for the device. The handheld PDA communicates with the controller 80 of the cabinet 10 in real time via a wireless network. Operators can easily move and scan QR codes at different locations. For example, if an operator selects the "Material Removal" option in the PDA software, they can first scan the barcode on the production work order or scan the QR code of the target machine. The PDA then sends this work order information to the controller 80. The PDA interface prompts "Please scan the target cavity QR code." The operator uses a PDA to scan the cavity identifier 22 in the form of a QR code on the target cavity door. The scanned cavity number data is uploaded to the controller 80 in real time. After receiving the cavity number data, the controller 80 queries the system database to check the material information currently stored in the cavity, obtains the model corresponding to the material identifier it is bound to, and compares the retrieved model with the material model required by the current work order. If the model matches perfectly, and the controller 80 determines that the reheating is complete based on the data from the cavity temperature sensor 40, the controller 80 sends an unlock command to the electronic lock 30 of the corresponding cavity, and the closed door 21 automatically opens, allowing material retrieval. If the model does not match, or the reheating is not complete, the controller 80 keeps the electronic lock 30 locked and simultaneously sends an error command to the PDA via the wireless network to guide the operator to correct the error.

[0041] In some embodiments, a status indicator 11 is integrated and installed on the upper part of the front frame of the cabinet 10 or on the closed door 21. This device displays the reheating status of all storage cavities 20 contained in the cabinet 10. It can also be equipped with a material information display function, allowing operators to easily monitor the status of all materials and facilitating production scheduling and management. The controller 80 sends the reheating status of each storage cavity 20 and the material model information bound by scanning to the status indicator 11 for centralized display. Typically, the status indicator 11 uses an array of LEDs of different colors, such as red for reheating, green for completion, and yellow for vacancy, to visually indicate the status of each cavity. Operators can quickly understand the real-time status of all materials without having to check each one individually or open the cabinet door, improving the management efficiency and material scheduling convenience of the production site.

[0042] In some embodiments, an alarm device 12, which can be an audible and visual alarm, is also installed on the upper part or top of the front frame of the cabinet 10. The controller 80 is connected to the alarm device 12, which sounds an alarm when the temperature of the storage cavity 20 is abnormal or when there is unauthorized operation. When the controller 80 detects an abnormal temperature in any storage cavity 20 through the temperature sensor 40, or detects unauthorized operation such as forced entry through changes in the current of the electronic lock 30, it sends a trigger signal to the alarm device 12.

[0043] In some embodiments, the closed door 21 has a viewing window, which is made of transparent tempered glass or high-strength acrylic sheet and is fixed and sealed by sealing strips to ensure the airtightness of the cavity. Operators can directly observe the internal state of the storage cavity 20 through the viewing window without opening the closed door 21, and check the presence, appearance, or partial label information on the plastic packaging box.

[0044] The controller principle of the molding compound warming device provided in this application is as follows: Figure 4 As shown, the controller 80, acting as the control center, is connected to various functional components via electrical wiring or a communication network. The controller 80 collects real-time environmental data from the temperature sensor 40 and humidity sensor 70, and receives information from the cavity identifier 22 and material identifier read by the identification device. The controller 80 compares the identifier information with pre-stored information or information specified in the work order to verify the correct correspondence between the material and the cavity; simultaneously, it determines whether the rewarming state of the molding compound meets the standards based on the environmental data. Only when the above verification and judgment meet the preset conditions will the controller 80 issue an unlocking command to the corresponding electronic lock 30. Furthermore, the controller 80 dynamically controls the opening and closing of the auxiliary temperature control module and its operating mode based on the environmental data, drives the status indicator device 11 to display the current status, and activates the alarm device 12 when an abnormality is detected. Through the above connection and control logic, the various components work collaboratively under the coordination of the controller 80, preventing the misuse of incompletely rewarmed molding compound and unauthorized operations, thus improving the safety and reliability of the production process.

[0045] In summary, the molding compound warming equipment provided in this application has high industrial application value because it effectively overcomes the various shortcomings of the prior art.

[0046] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. A molding compound warming device, characterized in that, include: The cabinet has multiple independent storage cavities inside, and each storage cavity is equipped with a closed door; Multiple electronic locks, each of which is correspondingly installed on the closed door of one of the storage cavities; A temperature sensor is disposed in at least a portion of the storage cavity for sensing the real-time temperature within the corresponding cavity; The controller is located inside the cabinet and is communicatively connected to the electronic lock and the temperature sensor; the controller is used to receive the signal from the temperature sensor and control the opening and closing of the corresponding electronic lock according to the signal.

2. The molding compound warming device according to claim 1, characterized in that, Also includes: An auxiliary temperature control module is disposed within at least a portion of the storage cavity and is communicatively connected to the controller; the auxiliary temperature control module includes at least one of a heating unit and a ventilation unit. The controller is used to receive temperature information fed back by the temperature sensor and control the opening and closing of the auxiliary temperature adjustment module to adjust the temperature inside the corresponding storage cavity.

3. The molding compound warming device according to claim 2, characterized in that, Multiple temperature sensors are installed inside the storage cavity, and the temperature sensors are located at different spatial positions, either close to or far from the auxiliary temperature control module.

4. The molding compound warming device according to claim 2, characterized in that, A humidity sensor is also installed inside the storage cavity, and the humidity sensor is communicatively connected to the controller. The controller is used to receive feedback information from the temperature sensor and the humidity sensor, determine the temperature recovery and dehumidification status of the molding compound, and control the working mode of the auxiliary temperature control module.

5. The molding compound warming device according to claim 1, characterized in that, Also includes: A cavity identifier is uniquely placed on the outside of each of the aforementioned closed doors; Material identification, used to associate with the plastic sealant packaging to be reheated; An identification device, communicatively connected to the controller, is used to read information from the cavity identifier and the material identifier. After the identification device verifies that the information of the material identifier and the cavity identifier are successfully matched, the controller executes the opening and closing control of the electronic lock based on the information fed back by the temperature sensor.

6. The molding compound warming device according to claim 5, characterized in that, The cavity identification and / or the material identification are QR code labels or radio frequency identification labels; The identification device is a corresponding QR code scanner or radio frequency identification reader / writer.

7. The molding compound warming device according to claim 1, characterized in that, It also includes a status indicator device, which is disposed on the cabinet or the closed door, for displaying the temperature recovery status and / or material information of all the storage cavities contained in the cabinet.

8. The molding compound warming device according to claim 1, characterized in that, The controller is connected to an alarm device that can issue an alarm when the temperature of the storage cavity is abnormal or when there is unauthorized operation.

9. The molding compound warming device according to claim 1, characterized in that, The enclosed door has a viewing window.

10. The molding compound warming device according to claim 1, characterized in that, The cabinet has a length between 80cm and 120cm, a width between 20cm and 50cm, and a height between 100cm and 200cm; each cabinet includes at least 2×3 independent storage cavities.

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