Preheating device for loading of plastic packaging system

Abstract

This application relates to a preheating device for a molding compound system, comprising a first base, a preheating mechanism, a transfer mechanism, and a feeding mechanism disposed thereon. The preheating mechanism includes a receiving plate connected to the first base and a heating assembly disposed thereon. A receiving groove is provided on the side of the receiving plate away from the first base for heating the material held therein. A trough is provided on the first base, forming a first accommodating space, and a first opening is formed on the side away from the base. The transfer mechanism includes a movable base plate with a clamping assembly for transferring the material into the receiving groove. The feeding mechanism includes a mounting base connected to the base plate, an adjustable adjusting seat, and a feeding tube with a second opening, which enters the first accommodating space through the first opening during operation. This preheating device for a molding compound system keeps the feeding tube away from the heating zone and in a relatively enclosed environment, effectively insulating it from premature melting of the adhesive particles and ensuring preheating efficiency and feeding accuracy.

Description

Technical Field

[0001] This utility model relates to a preheating device, and more particularly to a preheating device for feeding materials into a silicon carbide encapsulation system. Background Technology

[0002] In many industrial production processes, especially in electronic packaging, bonding processes, or composite material manufacturing, preheating of materials is often necessary to improve processing quality and adhesion performance. Preheating materials to a suitable temperature improves their thermoplasticity and enhances the active surface state, thereby increasing their bonding efficiency and stability with adhesives, encapsulation media, or other structures. Therefore, developing a stable and efficient preheating device for molding compound systems has become a crucial component of related processing techniques.

[0003] In the prior art, common preheating devices for molding and sealing systems typically include a base for support and positioning, a material-bearing structure for supporting the material, and a heating component located below it. The material is usually placed in the heating position for heating by a robotic arm or clamping mechanism, while adhesive materials such as granules are pre-placed in the vicinity through a feeding pipe or feeding mechanism.

[0004] However, in practical use, the heat generated by the preheating device during operation radiates or conducts to the surrounding environment, causing the internal temperature of the feeding pipe near the preheating area to rise. This makes the granules prone to premature softening, deformation, or even melting, affecting subsequent accurate feeding. Therefore, an improved preheating device for the encapsulation system is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a preheating device for feeding plastic sealing systems that effectively isolates the high-temperature zone from the plastic particles inside the feeding tube in a spatial structure, thereby reducing the impact of heat radiation or heat convection on the plastic particles in the feeding tube.

[0006] The technical solution adopted by this utility model to solve the above problems is: a preheating device for feeding materials in a plastic sealing system, for preheating materials, comprising:

[0007] First base;

[0008] Preheating mechanism, including:

[0009] A material support plate is connected to the first base, and a material support groove is provided on the side of the material support plate away from the first base for supporting the material;

[0010] A heating component is connected to the material support plate, and the heating component is configured to heat the material placed in the material support trough to a target temperature when the preheating device is in operation;

[0011] The trough is connected to the first base, and the trough includes a first accommodating space, the first accommodating space having a first opening on the side away from the first base;

[0012] The material transfer mechanism includes:

[0013] A second base is connected to the first base, the second base including a controllably movable substrate, the substrate including a second mounting surface;

[0014] A clamping assembly is disposed at the second mounting surface for clamping the workpiece;

[0015] Feeding mechanisms include:

[0016] Mounting base, connected to the substrate, the mounting base being movable in a controlled manner;

[0017] An adjusting seat is movably connected to the mounting seat, and the adjusting seat is controlled to move toward or away from the second mounting surface;

[0018] A feeding tube is disposed on the adjusting seat. The feeding tube includes a second accommodating space for accommodating granules. The second accommodating space has a second opening on the side near the first base.

[0019] When the preheating device is in operation, the clamping assembly moves the material into the receiving groove, and the feeding mechanism moves into the first accommodating space through the first opening near the first base.

[0020] Preferably, the inner wall of the tank is provided with an air inlet.

[0021] The feeding mechanism also includes a controlled low-temperature gas source, which is connected to the air inlet through a pipe to introduce low-temperature airflow into the first accommodating space when the preheating device is in operation.

[0022] Preferably, the feeding mechanism further includes a baffle connected to the substrate, the baffle having a through feeding hole on the side near the substrate, and the baffle being moved in a controlled manner.

[0023] When the feeding mechanism is in operation, the baffle is moved in a controlled manner to align the feeding hole with the second opening of the feeding tube; when the feeding mechanism is not in operation, the baffle is positioned on the side away from the substrate and covers the second opening of the feeding tube to restrict the outflow of granules from the feeding tube.

[0024] Preferably, the first base includes a first mounting surface, which is arranged parallel to the second mounting surface.

[0025] The preheating mechanism also includes:

[0026] A buffer support is disposed at the first mounting surface of the first base, and the buffer support includes a buffer end;

[0027] A base is disposed at the buffer end, the base includes a third accommodating space, and the third accommodating space has a third opening on the side away from the first base.

[0028] The heating component, the material support plate, and the trough are all disposed within the third accommodating space. The material support plate is disposed on the side of the heating component away from the first base. The trough is staggered with the heating component, and the first opening communicates with the outside. The first opening is configured to be aligned with the feeding pipe when the preheating device is in operation.

[0029] Preferably, there are two material support plates, which are symmetrically arranged and have an installation gap between them, and the groove is located at the installation gap.

[0030] Preferably, the buffer support further includes:

[0031] A fixing seat is disposed at the first mounting surface of the first base, and the fixing seat includes a guide groove disposed perpendicular to the first mounting surface;

[0032] A guide shaft, one end of which is movably inserted into the guide groove, and the other end of the guide groove is the buffer end;

[0033] A buffer spring is sleeved on the outside of the guide shaft, with one end of the buffer spring abutting against the fixed seat and the other end of the buffer spring abutting against the base.

[0034] A lifting assembly is disposed at the first mounting surface of the first base. The lifting assembly includes a controllable lifting end, which is movably connected to the base. The lifting end is configured to abut against the base when there is no material in the material receiving groove, so that the base moves to a preset height. The lifting end is also configured to separate from the base when the material falls into the material receiving groove.

[0035] Preferably, the clamping assembly moves in a controlled manner toward or away from the second mounting surface, and the clamping assembly includes a pair of clamps that operate synchronously.

[0036] When the moving mechanism is in operation, the paired grippers close together to hold the material; when the material transfer mechanism is not in operation, the paired grippers expand away from each other and separate from the material.

[0037] Preferably, the feeding mechanism further includes:

[0038] A first driving assembly is disposed on the substrate or the mounting base. The first driving assembly includes a first driving end that is controlled to move. The first driving end is pulsatorically connected to the adjusting seat to drive the adjusting seat to move toward or away from the second mounting surface.

[0039] A second driving component is disposed on the substrate. The second driving component includes a second driving end that is controlled to move. The second driving end is connected to the baffle in a transmission manner to drive the baffle to move in order to switch the opening and closing state of the second opening.

[0040] Preferably, the second base includes:

[0041] A fixed support is provided at the first mounting surface;

[0042] A movable frame is movably connected to the fixed bracket. The movable frame is controlled to move in a direction parallel to the first mounting surface. The movable frame is fixedly connected to the base plate. The movable frame is configured to move the material clamped by the clamping assembly to an alignment with the material receiving groove when the preheating device is in operation.

[0043] Preferably, the preheating device for the sealing system further includes a moving mechanism, including a controlled moving end, which is fixedly connected to the first base.

[0044] The beneficial effects of the embodiments of this utility model are as follows:

[0045] 1. By employing a technique of setting a groove on the first base, forming a first accommodating space and a first opening communicating with the accommodating space within the groove, the feeding mechanism can move into the first accommodating space from the side closest to the first base through the first opening when the preheating device is in operation. This places the feeding tube in a relatively enclosed space away from the heating element, effectively isolating it from radiant and convective heat from the heating element. Simultaneously, in conjunction with the clamping component in the material transfer mechanism, the feeding operation can be achieved without interfering with the material preheating process. Therefore, this technical solution effectively solves the problem of premature softening or melting of the granules in the feeding tube due to the preheating process in existing technologies, thereby achieving the technical effect of ensuring granule storage stability and feeding accuracy while maintaining material preheating efficiency and temperature uniformity.

[0046] 2. By adopting the technical means of opening an air inlet on the inner wall of the tank and connecting it to a controlled low-temperature gas source through pipe fittings, so as to introduce low-temperature airflow into the first accommodating space when the preheating device is in operation, the temperature in the accommodating space can be actively regulated by cooling gas on the basis of structural insulation. This effectively solves the problem in the prior art that it is difficult to fully resist high temperature radiation by relying solely on structural insulation, which may cause the granules in the feeding pipe to soften due to heat. Thus, it achieves the technical effects of improving the thermal stability of granules, extending the usable time of granules, and improving the feeding accuracy.

[0047] 3. By employing a baffle in the feeding mechanism and connecting the baffle to the base plate, with a through feeding hole on the baffle, and by controlling the movement of the baffle to align it with the second opening of the feeding tube in the working state, and to cover the second opening in the non-working state, the opening and closing control of the feeding tube outlet can be achieved. This effectively solves the problem of easy leakage of granules in the non-feeding state in the prior art, thereby achieving the technical effects of improving feeding accuracy, reducing granule waste, and optimizing the stability of the feeding process. Attached Figure Description

[0048] Figure 1 This is a schematic structural view of the preheating device for the sealing system proposed in one embodiment of the present invention.

[0049] Figure 2 This is a schematic cross-sectional view of the preheating device for the sealing system proposed in one embodiment of the present invention. Figure 1 .

[0050] Figure 3 This is a schematic cross-sectional view of the preheating device for the sealing system proposed in one embodiment of the present invention. Figure 2 .

[0051] Wherein: 10, first base; 110, first mounting surface; 20, preheating mechanism; 210, material receiving plate; 211, material receiving trough; 220, trough body; 221, first accommodating space; 222, first opening; 230, buffer support; 231, fixed seat; 232, guide shaft; 233, buffer spring; 234, lifting assembly; 2341, lifting end; 240, base; 250, heating assembly; 30. Material transfer mechanism; 310, second base; 311, base plate; 3111, second mounting surface; 312, fixed support; 313, moving frame; 40, feeding mechanism; 410, mounting base; 420, adjusting base; 430, feeding pipe; 440, baffle; 441, feeding hole; 450, first drive assembly; 451, first drive end; 460, second drive assembly; 461, second drive end; 50, material. Detailed Implementation

[0052] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0053] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0054] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] Please see Figures 1 to 3 In a preferred embodiment of this application, a preheating device for feeding a silicon carbide molding compound is provided for preheating the material 50 to be processed, so as to improve the processing stability and bonding quality in subsequent packaging processes.

[0056] The preheating device for the molding and sealing system includes a first base 10, a preheating mechanism 20, a material transfer mechanism 30, a material feeding mechanism 40, and a moving mechanism. These components coordinate to achieve automatic material transfer, temperature-controlled preheating, and auxiliary material feeding functions for the material 50. The first base 10 includes a first mounting surface 110. The preheating mechanism 20 includes a material support plate 210, a heating component 250, a tank 220, a buffer support 230, and a base 240. The material support plate 210 is connected to the first base 10, and a material receiving groove 211 is formed on the side of the material support plate 210 away from the first base 10 to support the material 50. The heating component 250 is connected to the material support plate 210 and is configured to heat the material 50 placed in the material receiving groove 211 to a target temperature when the preheating device is in operation. The tank 220 is connected to the first base 10 and contains... The system includes a first accommodating space 221, with a first opening 222 on the side of the first accommodating space 221 away from the first base 10. A buffer support 230 is disposed at the first mounting surface 110 of the first base 10, and the buffer support 230 includes a buffer end. A base 240 is disposed at the buffer end, and the base 240 includes a third accommodating space, with a third opening on the side of the third accommodating space away from the first base 10. The heating component 250, the material support plate 210, and the tank 220 are all disposed within the third accommodating space. The material support plate 210 is disposed on the side of the heating component 250 away from the first base 10. On one side, the tank 220 and the heating assembly 250 are staggered, and the first opening 222 communicates with the outside. The first opening 222 is configured to align with the feeding pipe 430 when the preheating device is in operation. The material transfer mechanism 30 includes a second base 310 and a clamping assembly. The second base 310 is connected to the first base 10. The second base 310 includes a controllably movable substrate 311. The substrate 311 includes a second mounting surface 3111, which is parallel to the first mounting surface 110. The clamping assembly is disposed at the second mounting surface 3111 for clamping the material 50. The feeding mechanism 40 includes a mounting base 410, an adjusting base 420, and a feeding tube 430. The mounting base 410 is connected to the substrate 311 and can move in a controlled manner. The adjusting base 420 is movably connected to the mounting base 410 and can move in a controlled manner toward or away from the second mounting surface 3111. The feeding tube 430 is disposed on the adjusting base 420 and includes a second accommodating space for accommodating granules. The second accommodating space has a second opening on the side near the first base 10. The moving mechanism includes a controlled moving end that is fixedly connected to the first base 10.When the preheating device is in operation, the clamping assembly moves the material 50 into the material receiving groove 211, and the feeding mechanism 40 moves into the first accommodating space 221 through the first opening 222 near the first base 10.

[0057] Specifically:

[0058] The first base 10 serves as the main support of the device, and its upper surface forms the first mounting surface 110, on which the preheating mechanism 20 is mounted. The preheating mechanism 20 includes a material support plate 210, a heating component 250, a trough 220, a buffer support 230, and a base 240. The material support plate 210 is made of a metal material with high thermal conductivity and is mechanically connected to the first base 10. On the side away from the first base 10, there is an upward-opening material support trough 211 for receiving and supporting the material 50 to be heated. The heating component 250 is attached to the bottom of the material support plate 210 and is preferably an integrated ceramic heating element. After being energized, it can quickly heat the material 50 in the material support trough 211 to a preset temperature range.

[0059] The trough 220 is connected to the first base 10, and a first accommodating space 221 is formed inside it to accommodate the feeding assembly from the feeding mechanism 40. The trough 220 has a first opening 222 on the side away from the first base 10 to guide the feeding mechanism 40 into the interior of the trough 220.

[0060] To mitigate thermal stress concentration and vibration interference, the preheating mechanism 20 is entirely mounted on the buffer support 230. A base 240 is connected to the bottom of the buffer support 230, and the base 240 forms a third accommodating space to house the material support plate 210, the heating component 250, and the tank 220. Its top third opening faces outwards. This structural arrangement allows the tank 220 and the heating component 250 to be staggered, ensuring that the opening of the tank 220 is connected to the outside, thus facilitating the insertion of the feeding pipe 430 from the outside.

[0061] The material transfer mechanism 30 includes a second base 310 disposed on the side of the first base 10 and a clamping assembly. The second base 310 adopts a controllable displacement structure, in which a base plate 311 that can move along a set trajectory is embedded. One side of the base plate 311 forms a second mounting surface 3111, which is parallel to the first mounting surface 110. The clamping assembly is installed on the second mounting surface 3111 and opens and closes under the action of a control signal to clamp the material 50 to be heated and accurately place it in the receiving groove 211.

[0062] The feeding mechanism 40 includes a mounting base 410, an adjusting base 420, and a feeding tube 430. The mounting base 410 is fixed to the substrate 311 and moves with it. The adjusting base 420 is slidably connected to the mounting base 410 and can reciprocate along the direction of approaching or moving away from the second mounting surface 3111. The feeding tube 430 is disposed on the adjusting base 420, and its interior forms a second accommodating space for holding the granules to be supplied to the heating area. The feeding tube 430 has a second opening at one end near the first base 10.

[0063] Once the preheating device is operational, the feeding mechanism 40 moves towards the first base 10 under control system commands and inserts into the first receiving space 221 formed by the tank 220 through the first opening 222. This spatially isolates the granules in the feeding pipe 430 from the heating environment, preventing premature softening or melting of the granules due to heat. During preheating, the first opening 222 aligns with the second opening of the feeding pipe 430 to ensure smooth subsequent feeding operations.

[0064] The moving mechanism is located at the lower part or around the first base 10, connected to the whole machine frame, and has controllable movement capability to adapt to installation position adjustment or workstation coordination in different production environments.

[0065] During operation, the clamping assembly picks up the target material 50 from the material feeding area and moves it to the receiving trough 211 for positioning. The heating assembly 250 then heats it. During this process, the feeding mechanism 40 inserts the feeding tube 430 into the trough 220 from one side through the first opening 222, separating the granules inside the feeding tube 430 from the heating area. This prevents the granules from melting due to heat, ensuring feeding accuracy and granule stability.

[0066] In this embodiment, by employing a groove 220 on the first base 10, and forming a first accommodating space 221 and a first opening 222 communicating with the accommodating space within the groove 220, the feeding mechanism 40 can move into the first accommodating space 221 from the side closest to the first base 10 through the first opening 222 when the preheating device is in operation. This places the feeding tube 430 in a relatively enclosed space away from the heating component 250, effectively isolating it from radiant and convective heat from the heating component 250. Therefore, this technical solution effectively solves the problem in the prior art where the granules in the feeding tube 430 soften or melt prematurely during the preheating process. This achieves the technical effect of ensuring both the preheating efficiency and temperature uniformity of the material 50, while also guaranteeing the storage stability and feeding accuracy of the granules.

[0067] To achieve precise transfer and efficient positioning of material 50, please refer to [link / reference]. Figures 2 to 3In some embodiments, the second base 310 includes a fixed support 312 and a movable frame 313. The fixed support 312 is disposed at the first mounting surface 110 to serve as a stable mounting reference for the material transfer mechanism 30. The movable frame 313 is movably connected to the fixed support and is controlled to move in a direction parallel to the first mounting surface 110. The movable frame 313 is fixedly connected to the base plate 311 and is configured to move the material 50 clamped by the clamping assembly to a position aligned with the material receiving groove 211 when the preheating device is in operation.

[0068] Specifically:

[0069] The fixed support 312 preferably adopts a welded frame structure, which has good structural rigidity and vibration resistance. Its bottom is reliably connected to the first mounting surface 110 through a screw or snap-fit ​​structure to ensure that it does not shift or loosen during the overall operation.

[0070] The movable frame 313 and the fixed support 312 are movably connected, and a sliding fit can be achieved between them through linear slide rail pairs, ball guide rails, or linear bearing assemblies. The moving direction of the movable frame 313 is parallel to the first mounting surface 110, and it is usually arranged horizontally. Its running trajectory is precisely calibrated to ensure that the transfer path is aligned with the central axis of the receiving groove 211. One side of the movable frame 313 is fixedly connected to the base plate 311, which has a second mounting surface 3111 for mounting the clamping assembly. The translation of the movable frame 313 can drive the base plate 311 to move as a whole, thereby driving the clamping assembly to achieve the horizontal movement of the material 50.

[0071] In the actual operation, the clamping assembly clamps the workpiece 50 to be heated before the moving frame 313 moves. When the preheating device enters the working state, the control system drives the moving frame 313 to slide slowly along the guide rail, so that the clamped workpiece 50 moves smoothly along a path parallel to the receiving plate 210, and accurately delivers the workpiece 50 to the top of the receiving groove 211 at the preset limit point. Then the clamping assembly releases, and the workpiece 50 falls into the receiving groove 211 under the action of gravity, completing the automatic feeding process. This structure avoids the problems of complex turning or multi-mechanism coordination of traditional multi-axis robotic arms, and has the characteristics of simple structure and stable operation.

[0072] This structure is suitable for process scenarios with relatively compact equipment layout and high-precision linear feeding requirements, especially for applications requiring high positioning accuracy and high transmission stability, such as silicon carbide packaging, 311 ceramic substrate bonding, or semiconductor pre-heating treatment. It exhibits low sensitivity to environmental vibration during operation, making it suitable for deployment in medium-temperature heat treatment stations or automated feeding systems.

[0073] In this embodiment, by using a technique of mounting the clamping assembly on a movable frame 313 that is parallel to the first mounting surface 110 and achieving precise transfer of the material 50 through a sliding connection structure between the movable frame 313 and the fixed support 312, the problem of large positioning deviation of the material 50, low feeding accuracy, or slow mechanism response in the prior art is effectively solved. This achieves the technical effects of improving the transfer accuracy of the material 50, simplifying the complexity of the mechanism, and enhancing the stability of system operation.

[0074] To improve the structural stability and buffering effect of the device during the placement and heating of material 50, please refer to [link / reference needed]. Figures 2 to 3 In some further embodiments, the buffer support 230 further includes a fixed base 231, a guide shaft 232, a buffer spring 233, and a lifting assembly 234. The fixed base 231 is disposed at the first mounting surface 110 of the first base 10, and includes a guide groove extending perpendicularly to the first mounting surface 110. One end of the guide shaft 232 is movably inserted into the guide groove, and the other end of the guide groove is the buffer end. The buffer spring 233 is sleeved on the outside of the guide shaft 232, and one end of the buffer spring 233 is connected to the fixed base 231. The other end of the buffer spring 233 abuts against the base 240; the lifting assembly 234 is disposed at the first mounting surface 110 of the first base 10, the lifting assembly 234 includes a controllable lifting end 2341, the lifting end 2341 is movably connected to the base 240, the lifting end 2341 is configured to abut against the base 240 when the material receiving groove 211 is not carrying the material 50, so that the base 240 moves to a preset height; the lifting end 2341 is configured to separate from the base 240 when the material 50 falls into the material receiving groove 211.

[0075] The guide shaft 232 is a slender rod-shaped structure, with one end movably inserted into the guide groove, allowing it to slide up and down within the groove to guide the vertical movement of the base 240. The other end of the guide groove forms a buffer end, which is connected to the lower part of the base 240 via a soft pad or elastic shock absorber. This buffer end absorbs energy and cushions the movement when the weight of the material 50 on the base 240 changes, thereby reducing the impact stress when the material 50 falls into the receiving groove 211 and preventing damage to the equipment structure or vibration transmission.

[0076] The lifting assembly 234 is also disposed at the first mounting surface 110 of the first base 10, preferably a linear drive unit, a spiral lifting module, or a pneumatic push rod structure. The lifting assembly 234 includes a controllable moving lifting end 2341, the upper surface of which is movably connected to the bottom of the base 240. The connection method can be a limiting groove fit, magnetic attraction, or abutment contact structure, so that the lifting end 2341 can apply an upward supporting force to the base 240. When the lifting end 2341 is empty, it rises and abuts against the base 240, supporting the base 240 to a preset height, so that the clamping assembly can smoothly place the material 50 into the receiving groove 211; when the material 50 successfully falls into the receiving groove 211 and presses down the base 240 under the action of gravity, the lifting end 2341 simultaneously and automatically descends or releases, disengaging from the base 240.

[0077] This buffer structure provides height adjustment and material drop buffer functions during the loading and unloading of material 50. During the preheating process, it can adjust the lifting response according to whether material 50 is lifted or lowered, which enhances the flexibility and stability of the system operation. It is especially suitable for the processing needs of high rigidity or brittle substrates (such as silicon carbide wafers) under stress-sensitive conditions.

[0078] In this embodiment, by employing a buffer support 230 located on the mounting surface of the first base 10, and integrating a fixed base 231, a guide shaft 232, and a controllable lifting assembly 234 therein, the base 240 can provide buffering, guiding, and lifting support functions during the placement of the material 50. Furthermore, it can automatically separate or engage the base 240 and the lifting end 2341 depending on whether the material 50 falls into the receiving groove 211. This effectively solves the problem in the prior art where excessive impact during the placement of the material 50 leads to device vibration, inaccurate positioning, or structural damage. Consequently, it achieves the technical effects of improving the stability of the material 50's descent, extending the service life of the device, and optimizing the preheating accuracy.

[0079] To achieve reliable gripping and stable release of the material 50, in some embodiments, the gripping assembly moves in a controlled manner toward or away from the second mounting surface 3111. The gripping assembly includes a pair of grippers that operate synchronously. Specifically, when the moving mechanism is in operation, the pair of grippers retract relative to each other to grip the material 50; when the material transfer mechanism 30 is not in operation, the pair of grippers expand away from each other, separating from the material 50.

[0080] Specifically:

[0081] The clamping assembly is disposed at the second mounting surface 3111 and moves in a controlled manner perpendicular to the second mounting surface 3111, that is, it can move toward or away from the second mounting surface 3111 to meet the positioning requirements of the workpiece 50 under different working conditions. The clamping assembly includes at least one pair of cooperating jaws, which are arranged opposite each other and form a mirror layout, suitable for symmetrical clamping structures. The pairs of jaws are connected by a mechanical linkage mechanism or an electronically controlled synchronous drive device to achieve synchronicity in their opening and closing actions.

[0082] The grippers are made of high-strength, heat-resistant materials, such as alloy steel or carbon fiber reinforced plastic. Their end profiles are designed as curved, serrated, or flexible-coated pressing surfaces according to the geometry of the workpiece 50 to be clamped, ensuring stable clamping without damaging or slipping the workpiece 50. The grippers are connected by slide rails, rotating shafts, or guide rod mechanisms, enabling them to move closer or open relative to each other under the control system's drive.

[0083] When the clamping assembly is in operation, the paired grippers close together, and the entire clamping assembly approaches the second mounting surface 3111, thereby completing the gripping action of the workpiece 50. In this state, the ends of the grippers form a clamping engagement with the workpiece 50, allowing the workpiece 50 to be moved as a whole to the position above the receiving groove 211. When the workpiece 50 completes the placement action or the clamping action terminates, the control system issues a release command, the grippers expand in opposite directions, and the clamping assembly then retracts away from the second mounting surface 3111, completely separating from the workpiece 50. During this process, the opening and closing of the grippers, the up and down movement of the clamping assembly, and the clamping and releasing actions can be achieved through common actuators such as cylinders, electric sliders, and lead screw modules.

[0084] The clamping mechanism features highly automated and responsive operation, enabling closed-loop linkage with the main control system. It is suitable for machining or heat treatment scenarios requiring rapid loading and unloading and precise clamping. It is particularly suitable for brittle materials, sheet substrates 311, or irregularly shaped components where high precision in clamping force control is required, offering superior stability and flexibility compared to traditional rigid chuck structures.

[0085] In this embodiment, by employing a clamping component mounted on the second mounting surface 3111 and controlling its movement toward or away from the second mounting surface 3111, and by using paired and synchronously operating grippers to clamp and release the material 50, the problem of unstable gripping of the material 50, insufficient positioning accuracy, or easy slippage during the release process in the prior art is effectively solved. This achieves the technical effects of improving the clamping reliability of the automated device, enhancing the control flexibility of the clamping process, and adapting to various structural forms of the material 50.

[0086] To improve the performance of the preheating device for the molding and sealing system in terms of thermal control accuracy and adaptability to high-temperature environments, an auxiliary cooling structure for temperature management of the containment space can be introduced into the preheating mechanism 20. In some further embodiments, the inner wall of the tank 220 is provided with an air inlet; the feeding mechanism 40 also includes a controlled low-temperature gas source, which is connected to the air inlet through a pipe to introduce a low-temperature airflow into the first containment space 221 when the preheating device is in operation.

[0087] Specifically:

[0088] At least one air inlet is provided on the inner wall of the tank 220. All air inlets are evenly distributed along the height or circumference of the tank 220 and are opened towards the first accommodating space 221, thereby providing a channel for airflow guidance and diffusion in terms of structure. The air inlets can be circular, rectangular or slit-like structures, and their opening size and layout density are designed to match the target cooling airflow rate and the space size of the tank 220.

[0089] The cryogenic gas source is a controllable cooling gas supply device, preferably a nitrogen cylinder, a refrigerated dryer system, a compressed air refrigeration unit, or a refrigerant injection device. The cryogenic gas source is connected to the air inlet via connecting pipes, which can be made of pressure- and heat-resistant materials such as PTFE tubing, stainless steel corrugated tubing, or composite flexible tubing, to ensure long-term stable operation under the high-temperature conditions of the device.

[0090] When the preheating device is in operation, the control system activates the low-temperature gas source, allowing the low-temperature airflow to enter the air inlet on the inner wall of the tank 220 through the pipes, and further diffuse into the first accommodating space 221. Since this accommodating space is the area where the feeding pipe 430 is inserted, its temperature is affected by the indirect radiation and convection of the surrounding heating components 250, which can easily cause the granules inside the feeding pipe 430 to soften thermally, flow prematurely, or become blocked. The introduction of the low-temperature airflow forms a relatively cooling air mass, which can establish a temperature difference buffer zone within the feeding area, thereby effectively suppressing the transfer of heat from the heating area into the tank 220, achieving active control of thermal interference at the feeding end.

[0091] The introduction of this cooling structure can work in tandem with the overall system's operational logic. For example, by collecting the local temperature inside the tank 220 through a temperature sensor, it can automatically control the low-temperature gas source to open or adjust the flow rate when a set threshold is reached. It can also be linked with clamping and feeding actions to provide temporary cooling only when the feeding pipe 430 is about to be inserted or is in a stop, thereby reducing energy consumption while ensuring the cooling effect.

[0092] This structure is suitable for composite processes that require prolonged heating while precisely controlling the thermal impact of non-heated areas. It is particularly suitable for applications such as silicon carbide encapsulation, thermal bonding, or high-viscosity particle control.

[0093] In this embodiment, by using an air inlet on the inner wall of the tank 220 and connecting it to a low-temperature air source through a pipe, a low-temperature airflow is introduced into the first accommodating space 221 during the operation of the preheating device. This effectively solves the problem in the prior art where the granules are prone to premature softening, dripping, or even clogging due to heat conduction or heat radiation when the feeding pipe 430 is close to the heating area. This achieves the technical effects of improving the thermal stability of granule storage, ensuring the controllability of the feeding process, and enhancing the long-term operational stability of the device under high-temperature conditions.

[0094] To further improve the accuracy and stability of granule feeding control, please refer to [link / reference needed]. Figure 3 In some further embodiments, the feeding mechanism 40 further includes a baffle 440 for selectively opening or blocking the discharge state of the feeding tube 430 at different stages of the feeding process. The baffle 440 is connected to the substrate 311, and the baffle 440 has a through feeding hole 441 on the side near the substrate 311, and the baffle 440 is controllably movable. When the feeding mechanism 40 is in the working state, the baffle 440 is controllably moved until the feeding hole 441 is aligned with the second opening of the feeding tube 430; when the feeding mechanism 40 is in the non-working state, the baffle 440 covers the second opening of the feeding tube 430 on the side away from the substrate 311 to restrict the outflow of adhesive particles from the feeding tube 430.

[0095] The baffle 440 is connected to the substrate 311 and is preferably located in a region close to the substrate 311 to facilitate its movement with the substrate 311 and coordinate with the actions of other structures. The baffle 440 is a plate-shaped component, and its material can be a heat-resistant composite material or a metal alloy, possessing certain mechanical strength and thermal stability. It has a feeding hole 441 that penetrates the body of the baffle 440, which is used to align with the second opening of the feeding tube 430 at a specific position to release the granules.

[0096] The baffle 440 is a controlled moving structure, and its moving direction is preferably set perpendicular to the discharge direction of the feeding tube 430. It can be driven by an electric slider, a linear push rod or a cylinder actuator to achieve reciprocating movement. When the feeding mechanism 40 is not in working state, the baffle 440 moves to an extreme position, so that its body blocks the second opening of the feeding tube 430, forming a physical isolation to prevent the granules in the feeding tube 430 from falling.

[0097] In an optional embodiment, the shape of the feeding hole 441 of the baffle 440 can be customized according to the outlet profile of the feeding pipe 430, for example, it can be set as a round hole, an elliptical hole or a strip opening to improve the matching degree and feeding smoothness; the baffle 440 structure can also be combined with a positioning groove, a spring reset mechanism or a Hall sensor to improve its action accuracy and system detection capability, forming a closed-loop control mode; in addition, the number of feeding holes 441 can be set in multiple groups in parallel according to the number of feeding pipes 430, for multi-point synchronous control.

[0098] In this embodiment, by employing a baffle 440 structure disposed on the side of the substrate 311, and by controlling its movement to align the feeding hole 441 with the discharge port of the feeding tube 430 in the working state and to block it in the non-working state, the problem of premature drop of adhesive particles caused by the lack of effective opening and closing control in the feeding process in the prior art is effectively solved. This achieves the technical effects of improving the feeding control accuracy, avoiding thermal deformation of adhesive particles, and enhancing the automation safety of the system.

[0099] To further optimize the spatial layout, thermal distribution, and structural stability of the components in the preheating unit of the molding and sealing system, please refer to [link / reference needed]. Figure 1 In some further embodiments, the material support plate 210 in the preheating mechanism 20 adopts a double plate structure, that is, there are two material support plates 210. The two material support plates 210 are installed symmetrically on the mounting surface of the first base 10, and a mounting gap is reserved between their opposite edges, so that the groove 220 can be stably set in the gap, thereby realizing integrated encapsulation, thermal zone separation and component integration in structure.

[0100] Specifically:

[0101] Each support plate 210 may have a rectangular, stepped, or other regular planar structure. Each plate has its own support groove 211 on the side furthest from the first base 10, used to support materials 50 from one side or a localized area. The number of heating components 250 is the same as the number of support plates 210. Each heating component 250 is positioned below two support plates 210 in a one-to-one correspondence, enabling independent heating control in different zones, thereby improving the response speed and uniformity of the heat field adjustment.

[0102] The trough 220 is integrally positioned within the installation gap between the two support plates 210. A gap may be left between its side and the side of the support plate 210, or a heat insulation layer may be provided to mitigate heat transfer. The interior of the trough 220 forms a first accommodating space 221 to accommodate the feeding pipe 430 at the end of the feeding mechanism 40. During preheating operation, the feeding pipe 430 can be directly inserted into the space through the opening area. The trough 220 and the support plates 210 are arranged relatively independently, achieving structural isolation between the cold and hot zones, facilitating subsequent integration of cooling components, air ducts, or temperature isolation structures.

[0103] During operation, the clamping assembly moves the material 50 to be heated to one of the two receiving troughs 211, where it is preheated at a specific point by the corresponding heating assembly 250. Because the two receiving plates 210 are symmetrically arranged, their heating areas can achieve load dispersion and alternating feeding, improving overall processing efficiency. The feeding mechanism 40 is inserted into the feeding pipe 430 through a centrally located trough 220, isolating the granules inside the feeding pipe 430 from the external heating environment. This structure not only improves thermal efficiency but also facilitates subsequent maintenance, replacement, and modular integration.

[0104] In this embodiment, by employing a technical means of symmetrically arranging two material support plates 210 and reserving an installation gap between them so that the tank body 220 can be placed in the gap, the problem of spatial conflict, thermal interference, or inconvenient installation caused by the overlap of the hot zone and the feeding zone in the prior art is effectively solved. This achieves the technical effects of improving the structural integration of the device, optimizing the thermal field distribution, and enhancing the modular expansion capability of the equipment.

[0105] To improve the execution control accuracy and automated operation capability of the feeding mechanism 40, please refer to [link / reference needed]. Figure 3 In some embodiments, the feeding mechanism 40 further includes a first driving component 450 and a second driving component 460, which are respectively used to drive the position adjustment of the adjusting seat 420 and the opening and closing switching of the baffle 440, thereby realizing dual control of the granule release path in both spatial and temporal dimensions. The first driving component 450 is disposed on the substrate 311 or the mounting base 410, and includes a controllable moving first driving end 451, which is convexly connected to the adjusting seat 420 to drive the adjusting seat 420 to move towards or away from the second mounting surface 3111. The second driving component 460 is disposed on the substrate 311, and includes a controllable moving second driving end 461, which is convexly connected to the baffle 440 to drive the baffle 440 to move, thereby switching the opening and closing state of the second opening.

[0106] Specifically:

[0107] The first drive assembly 450 is mounted on the base plate 311 or the mounting base 410, and its main function is to control the vertical movement of the adjusting seat 420 relative to the second mounting surface 3111. The first drive assembly 450 includes a controllable moving first drive end 451, which is connected to the adjusting seat 420. Specifically, power transmission and position guidance can be achieved through structures such as slide rails, guide grooves, spiral lifting modules, or electric push rods. The first drive assembly 450 can use electric, pneumatic, or servo actuators. Through program setting or command triggering, the first drive end 451 realizes the lifting and lowering action of the adjusting seat 420 during the preheating or feeding stage of the material 50, thereby controlling the insertion depth, position calibration, and retraction reset of the feeding tube 430 relative to the tank 220.

[0108] The second drive assembly 460 is disposed on the substrate 311 and is mainly used to control the translational movement of the baffle 440 to switch the opening and closing state of the second opening of the feeding tube 430. The second drive assembly 460 includes a controllable moving second drive end 461, which is connected to the baffle 440. The baffle 440 can be driven by a translation link, an eccentric wheel mechanism, a gear set, or a push-pull rod. During the feeding stage, the control system activates the second drive assembly 460, causing the second drive end 461 to move the baffle 440 to a position where the feeding hole 441 is aligned with the opening of the feeding tube 430. In the non-working state, the baffle 440 is reset to the blocking position under the action of the second drive end 461, thereby effectively sealing the feeding port and preventing the leakage of granules, air backflow, or heat diffusion.

[0109] The two drive components mentioned above can operate independently or be coordinated through a central control module to achieve time-coordinated insertion of the adjustment seat 420 and opening of the baffle 440. For example, after the clamping component has placed the material 50, the control system can simultaneously trigger the first drive component 450 to move the adjustment seat 420 to a specified height, and at the same time trigger the second drive component 460 to open the baffle 440, thereby achieving accurate and controlled feeding operation; after feeding is completed, the two components move in opposite directions to close the granule release path and reset the structure.

[0110] This solution is suitable for work scenarios requiring high precision in material feeding control, high material thermal sensitivity, or a high degree of automation, such as silicon carbide chip packaging, precision bonding, and high-purity powder hot injection processes. It exhibits good adaptability to environmental response time and mechanical coordination. Its installation requirements are low, and control signals are easily integrated, making it suitable for embedded or PLC-driven systems.

[0111] In this embodiment, by employing a first driving component 450 and a second driving component 460 respectively disposed on the substrate 311 or the mounting base 410, and driving the adjusting seat 420 to move in the vertical direction and the baffle 440 to switch positions in the horizontal direction, the problem of unstable insertion position of the feeding mechanism 40, inaccurate control of feeding opening and closing, and uncontrolled flow of granules in the prior art is effectively solved. This achieves the technical effects of improving the controllability of the feeding path, enhancing the consistency of action coordination, and ensuring the efficient and stable operation of the overall system.

[0112] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A preheating device for a molding and sealing system, used for preheating materials, characterized in that, include: First base; Preheating mechanism, including: A material support plate is connected to the first base, and a material support groove is provided on the side of the material support plate away from the first base for supporting the material; A heating component is connected to the material support plate, and the heating component is configured to heat the material placed in the material support trough to a target temperature when the preheating device is in operation; The trough is connected to the first base, and the trough includes a first accommodating space, the first accommodating space having a first opening on the side away from the first base; The material transfer mechanism includes: A second base is connected to the first base, the second base including a controllably movable substrate, the substrate including a second mounting surface; A clamping assembly is disposed at the second mounting surface for clamping the workpiece; Feeding mechanisms include: Mounting base, connected to the substrate, the mounting base being movable in a controlled manner; An adjusting seat is movably connected to the mounting seat, and the adjusting seat is controlled to move toward or away from the second mounting surface; A feeding tube is disposed on the adjusting seat. The feeding tube includes a second accommodating space for accommodating granules. The second accommodating space has a second opening on the side near the first base. When the preheating device is in operation, the clamping assembly moves the material into the receiving groove, and the feeding mechanism moves into the first accommodating space through the first opening near the first base.

2. The preheating device for the encapsulation system according to claim 1, characterized in that: An air inlet is provided on the inner wall of the tank; The feeding mechanism also includes a controlled low-temperature gas source, which is connected to the air inlet through a pipe to introduce low-temperature airflow into the first accommodating space when the preheating device is in operation.

3. The preheating device for the sealing system according to claim 1 or 2, characterized in that, The feeding mechanism also includes a baffle plate connected to the substrate. The baffle plate has a through feeding hole on the side near the substrate, and the baffle plate moves in a controlled manner. When the feeding mechanism is in operation, the baffle is moved in a controlled manner to align the feeding hole with the second opening of the feeding tube; when the feeding mechanism is not in operation, the baffle is positioned on the side away from the substrate and covers the second opening of the feeding tube to restrict the outflow of granules from the feeding tube.

4. The preheating device for the molding and sealing system according to claim 1, characterized in that: The first base includes a first mounting surface, which is arranged parallel to the second mounting surface; The preheating mechanism also includes: A buffer support is disposed at the first mounting surface of the first base, and the buffer support includes a buffer end; A base is disposed at the buffer end, the base includes a third receiving space, and the third receiving space has a third opening on the side away from the first base; The heating component, the material support plate, and the trough are all disposed within the third accommodating space. The material support plate is disposed on the side of the heating component away from the first base. The trough is staggered with the heating component, and the first opening communicates with the outside. The first opening is configured to be aligned with the feeding pipe when the preheating device is in operation.

5. The preheating device for the sealing system according to claim 4, characterized in that, The number of the material support plates is two, the two material support plates are symmetrically arranged, and an installation gap is left between the two material support plates. The groove is set at the installation gap.

6. The preheating device for the sealing system according to claim 4 or 5, characterized in that, The buffer support also includes: A fixing seat is disposed at the first mounting surface of the first base, and the fixing seat includes a guide groove disposed perpendicular to the first mounting surface; A guide shaft, one end of which is movably inserted into the guide groove, and the other end of the guide groove is the buffer end; A buffer spring is sleeved on the outside of the guide shaft, with one end of the buffer spring abutting against the fixed seat and the other end of the buffer spring abutting against the base. A lifting assembly is disposed at the first mounting surface of the first base. The lifting assembly includes a controllable lifting end, which is movably connected to the base. The lifting end is configured to abut against the base when there is no material in the material receiving groove, so that the base moves to a preset height. The lifting end is also configured to separate from the base when the material falls into the material receiving groove.

7. The preheating device for the sealing system according to claim 1, characterized in that, The clamping assembly moves in a controlled manner toward or away from the second mounting surface, and the clamping assembly includes a pair of clamps that operate synchronously. When the material transfer mechanism is in operation, the paired grippers close together to hold the material; when the material transfer mechanism is not in operation, the paired grippers expand away from each other and separate from the material.

8. The preheating device for the sealing system according to claim 3, characterized in that, The feeding mechanism also includes: A first driving assembly is disposed on the substrate or the mounting base. The first driving assembly includes a first driving end that is controlled to move. The first driving end is pulsatorically connected to the adjusting seat to drive the adjusting seat to move toward or away from the second mounting surface. A second driving component is disposed on the substrate. The second driving component includes a second driving end that is controlled to move. The second driving end is connected to the baffle in a transmission manner to drive the baffle to move in order to switch the opening and closing state of the second opening.

9. The preheating device for the sealing system according to claim 4 or 5, characterized in that, The second base includes: A fixed support is provided at the first mounting surface; A movable frame is movably connected to the fixed support. The movable frame is controlled to move in a direction parallel to the first mounting surface. The movable frame is fixedly connected to the base plate. The movable frame is configured to move the material clamped by the clamping assembly to an alignment with the material receiving groove when the preheating device is in operation.

10. The preheating device for the molding and sealing system according to claim 1, characterized in that, The preheating device for the encapsulation system also includes a moving mechanism, comprising a controlled moving end, which is fixedly connected to the first base.

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