A rubber drying and curing device for diode production

Abstract

The application discloses a glue drying and curing equipment for diode production and relates to the technical field of diode production equipment, which comprises a drying box body, a box type heating structure and a transfer gas storage box. A cold and hot air circulation system is arranged on the drying box body. The cold and hot air circulation system is composed of a connecting pipeline, a buried pipeline, an air inlet limiting metering barrel, an assembly air inlet pipe and an assembly air return pipe. The buried pipeline is arranged on the inner wall bottom surface of the drying box body. In the using process of the application, the electric heating mode is still adopted and optimized. The diode glue is dried and cured. The hot air flow system suitable for different process requirements is arranged in the whole drying box. Under the premise of accurately providing heat energy, the hot air can be uniformly diffused. The glue drying efficiency is further improved without damaging the glue.

Description

Technical Field

[0001] This invention relates to the field of diode manufacturing equipment technology, and more particularly to a device for drying and curing adhesives used in diode manufacturing. Background Technology

[0002] During the diode manufacturing process, a protective adhesive (mainly white glue) is applied. This serves two purposes: first, to prevent the PN junction surface from being contaminated by subsequent processes and worn by mechanical pressure; and second, to ensure a more stable PN junction surface. Subsequently, the pre-fabricated diode semi-finished product (after applying white glue) is sent to a drying oven for drying and curing, and is dried at a constant temperature for a corresponding duration according to process requirements.

[0003] In the current drying and curing process, electric heating is used to convert electrical energy into heat energy, which can adapt to long-term drying operations. It should be noted that although electric heating has the advantage of rapid heating and can raise the temperature to a certain range in a short time, it also affects the drying of the adhesive. The drying process of diode adhesive involves two or more drying temperature gradients. Therefore, in the heating method that is mainly electric heating, it is impossible to accurately provide the precise temperature value of the corresponding gradient. For example, in a drying process that requires a temperature of 100°C, the temperature generated by electric heating may be higher or lower than the value of 100°C.

[0004] Secondly, the air circulation step during the drying process is used to solve the problem of hot air "accumulation / stagnation" and thus avoid uneven drying. In addition, the circulation system in the current drying box only uses a fan to achieve air flow, which cannot form a stable air flow. All of the above problems will cause uneven drying of the rubber or damage to the rubber.

[0005] In view of the above-mentioned technical problems, this application proposes a solution. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drying and curing device for diode manufacturing adhesives. During operation, it still employs electric heating, but optimizes this method to dry and cure the diode adhesives. The drying chamber is equipped with a hot air flow system that can accommodate different process requirements, ensuring precise heat delivery while also achieving uniform hot air diffusion. This further improves the drying efficiency of the adhesives without damaging them.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A drying and curing device for adhesives used in diode production includes a drying chamber body, a box-type heating structure, and a transfer and storage tank. The drying chamber body is equipped with a hot and cold air circulation system, which consists of connecting pipes, embedded pipes, an air inlet limiting metering tank, an assembly air inlet pipe, and an assembly air return pipe. The embedded pipes are laid in the bottom surface of the inner wall of the drying chamber body, and are connected to the air inlet limiting metering tank. The air inlet limiting metering tank is installed on the exhaust end of the upper side of the box-type heating structure. One end of the assembly air inlet pipe is connected to the air inlet end of the lower side of the box-type heating structure, and the other end of the assembly air inlet pipe is connected to the interior of the transfer and storage tank. One end of the assembly air return pipe is installed at the center point of the upper end of the drying chamber body, and the other end of the assembly air return pipe is connected to the interior of the transfer and storage tank.

[0009] A piston plate is slidably installed inside the air intake limiting metering barrel, and a stepper motor is fixedly installed at the center point of the upper end of the air intake limiting metering barrel. The drive shaft of the stepper motor passes downward through the interior of the air intake limiting metering barrel, and a triangular plate is fixedly installed at the end of the drive shaft of the stepper motor. A weight sensor is fixedly installed at the triangular position on the lower surface of the triangular plate. The drive shaft of each weight sensor is fixedly connected to the piston plate. Multiple air venting channels are opened inside the piston plate. An opening matching the end of the air venting channel is opened on the outer circumference of the air intake limiting metering barrel. An air collecting hood is installed at the opening position of the air intake limiting metering barrel corresponding to the opening position of the air venting channel. The air collecting hood is fixedly connected to the connecting pipe.

[0010] To further explain, temperature sensors are fixedly installed on the lower side of the air intake limiting metering barrel and on one side of the upper surface of the drying chamber body, respectively. The temperature probes of the two temperature sensors extend into the interior of the air intake limiting metering barrel and the drying chamber body.

[0011] To further explain, multiple heat-resistant ceramic nozzles are installed in a linear arrangement on the embedded pipeline. Each heat-resistant ceramic nozzle is inclined in the vertical direction, and the inclination angle and inclination direction of each heat-resistant ceramic nozzle are different.

[0012] To further explain, multiple diversion plates are evenly installed vertically on both sides of the outer wall inside the drying oven body, and an opening is provided between the end of each diversion plate and the inner wall of the drying oven body;

[0013] The upper surface of each of the diverter plates is parallel to the horizontal plane, and the lower surface of each of the diverter plates is inclined upward along the direction close to the opening.

[0014] To further explain, the transfer air storage box has a double-layer structure. One end of the assembly return pipe and the assembly intake pipe are both connected to the lower structure inside the transfer air storage box. An intake grille is installed on the outer wall of the upper structure of the transfer air storage box.

[0015] To further explain, an auxiliary bidirectional fan is fixedly installed on one end of the upper surface of the drying chamber body. A displacement air pipe is installed on both the air inlet and outlet of the auxiliary bidirectional fan. One of the displacement air pipes is connected to the upper part of the interior of the drying chamber body, and the other displacement air pipe is connected to the interior of the upper structure of the transfer and storage air tank. A solenoid valve body is installed on one of the displacement air pipes.

[0016] To further explain, an auxiliary unidirectional fan is provided between the box-type heating structure and the transfer and storage air box, and the air inlet pipe of the assembly is connected to the air inlet and air outlet of the auxiliary unidirectional fan;

[0017] A connecting fastener is fixedly installed at the internal position where the air intake pipe of the assembly intersects with the air intake end of the box-type heating structure. A connecting rod is slidably installed on the connecting fastener along the vertical distribution. A rubber cap is fixedly installed at the top of the connecting rod. The cross-section of the rubber cap is a downwardly curved arc shape.

[0018] The present invention provides a drying and curing device for adhesives used in diode production, which has the following advantages:

[0019] 1. This invention mainly uses electric heating as the heat supply structure in the drying and curing process of the adhesive, and optimizes the current heat energy delivery method, reducing unnecessary heat energy delivery methods. It mainly utilizes the principle of thermal circulation. Areas with high temperature generally have prevailing rising airflow, which is a low-pressure area, and vice versa. When the gas is heated, the pressure change occurs, and the gas temperature is measured by the pressure change. Specifically, this is reflected in the operating principle of the gas inlet limiting metering barrel. Thus, under the premise of controlling the pressure, the real-time temperature of the gas entering the drying chamber can be limited, and different drying heating temperature gradients such as 100°, 150°, and 200° can be set for different adhesives.

[0020] 2. In addition, according to the above, when hot air flows into the interior of the drying oven, by further restricting a small part of the internal structure of the drying oven and utilizing the principle of hot air rising, the hot air can flow in multiple S-shapes on each distribution plate. It should be noted that the distribution plate can be used to support the diode preform and to make the flowing hot air pass evenly over the preform. Thus, by "restricting" the stable airflow, the drying efficiency is improved.

[0021] 3. Finally, it should be noted that in the cooling and drying step of the rubber drying process, the temperature inside the drying chamber is reduced to the required level in a short time by rapidly replacing the hot air flow inside the drying chamber. Combined with the operating principle of the air intake limiting metering barrel, air flow of the corresponding temperature is introduced into the drying chamber again. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a rubber drying and curing device for diode production proposed in this invention;

[0023] Figure 2 This is a schematic diagram of the hot and cold air circulation system in a rubber drying and curing equipment for diode production proposed in this invention;

[0024] Figure 3 This is a cross-sectional view of an air intake limiting metering barrel component of a rubber drying and curing equipment for diode production proposed in this invention;

[0025] Figure 4 This is a cross-sectional view of the drying chamber body component of a rubber drying and curing equipment for diode production proposed in this invention;

[0026] Figure 5 This invention provides a method for drying and curing adhesives used in diode production. Figure 4 The front view;

[0027] Figure 6 This is a cross-sectional view of the air inlet pipe component in a rubber drying and curing equipment for diode production proposed in this invention.

[0028] In the diagram: 1. Drying oven body; 2. Air intake limiting metering tank; 3. Temperature sensor; 4. Box-type heating structure; 5. Auxiliary unidirectional fan; 6. Transfer and storage tank; 7. Replacement air pipe; 8. Auxiliary bidirectional fan; 9. Assembly return air pipe; 10. Connecting pipe; 11. Embedded pipeline; 12. Heat-resistant ceramic nozzle; 13. Stepper motor; 14. Triangular plate; 15. Weight sensor; 16. Piston plate; 17. Air collection hood; 18. Exhaust air passage; 19. Diverter plate; 20. Assembly air intake pipe; 21. Connecting fastener; 22. Connecting rod; 23. Rubber cap; 24. Solenoid valve body. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] In this invention, the main focus is on the drying and curing process of diode adhesive. The drying and curing process is described simply as follows: Adhesive conforming to the process requirements is applied to the diode, and the drying temperature is set according to the process parameters. The drying process can be simply divided into three parts: preheating, temperature-raising drying, and temperature-cooling / heat-preserving drying. There are temperature differences between these three parts. Regarding the technical problems described above, if the drying temperature is too high, it can lead to damage after drying; or if the drying temperature is insufficient, it can result in low drying efficiency.

[0032] Regarding the heat supply method, electric heating is the most economical and simplest method. However, the heating process is relatively simple and cannot ensure that the diode adhesive remains in a relatively stable state during the drying and curing process. Therefore, the following technical solution is proposed, including several embodiments, as follows:

[0033] Example 1

[0034] refer to Figure 1 , Figure 2 and Figure 3 A drying and curing device for adhesives used in diode production includes a drying chamber body 1, a box-type heating structure 4, and a transfer and storage air tank 6. The drying chamber body 1 is equipped with a hot and cold air circulation system, which consists of a connecting pipe 10, an embedded pipe 11, an air intake limiting metering tank 2, an assembly air intake pipe 20, and an assembly air return pipe 9. The embedded pipe 11 is laid in the bottom surface of the inner wall of the drying chamber body 1, and the embedded pipe 11 and the connecting pipe 10 are connected to the air intake limiting metering tank 2. The air intake limiting metering tank 2 is installed on the exhaust end of the upper side of the box-type heating structure 4. One end of the assembly air intake pipe 20 is connected to the air intake end of the lower side of the box-type heating structure 4, and the other end of the assembly air intake pipe 20 is connected to the interior of the transfer and storage air tank 6. One end of the assembly air return pipe 9 is installed at the center point of the upper end of the drying chamber body 1, and the other end of the assembly air return pipe 9 is connected to the interior of the transfer and storage air tank 6.

[0035] A piston plate 16 is slidably installed inside the intake limiting metering barrel 2, and a stepper motor 13 is fixedly installed at the center point of the upper end of the intake limiting metering barrel 2. The drive shaft of the stepper motor 13 extends downward into the interior of the intake limiting metering barrel 2, and a triangular plate 14 is fixedly installed at the end of the drive shaft of the stepper motor 13. A weight sensor 15 is fixedly installed at the triangular position on the lower surface of the triangular plate 14. The drive shaft of each weight sensor 15 is fixedly connected to the piston plate 16. Multiple venting channels 18 are opened inside the piston plate 16, and an opening matching the end of the venting channel 18 is opened on the outer circumference of the intake limiting metering barrel 2. A gas collecting hood 17 is installed at the opening position of the air intake limiting metering barrel 2 corresponding to the opening position of the venting channel 18. The gas collecting hood 17 is fixedly connected to the connecting pipe 10. Temperature sensors 3 are fixedly installed on the lower side of the air intake limiting metering barrel 2 and on one side of the upper surface of the drying chamber body 1. The temperature probes of the two temperature sensors 3 extend into the interior positions of the air intake limiting metering barrel 2 and the drying chamber body 1, respectively. Multiple heat-resistant ceramic nozzles 12 are installed on the embedded pipeline 11 in a linear arrangement. Each heat-resistant ceramic nozzle 12 is inclined in the vertical direction, and the inclination angle and inclination direction of each heat-resistant ceramic nozzle 12 are different.

[0036] Working principle / usage principle and advantages: The box-type heating structure 4 gradually heats up through electric heating, raising the temperature of the air inside the box-type heating structure 4. The hot air gradually rises into the air intake limiting metering cylinder 2. During this process, the following steps are followed:

[0037] Step 1: In the initial state, according to P=F / S, where P is the pressure of the airflow inside the intake limiting metering tank 2, F is the pressure exerted on the piston plate 16 in the vertical upward direction, and the value of F can be the average value measured by multiple weight sensors 15 on the upper side of the piston plate 16, and S is the cross-sectional area of ​​the lower surface of the piston plate 16, and the value of S is constant, then as the hot air inside the intake limiting metering tank 2 gradually heats up, the value of P will gradually increase; in addition, according to the formula PV=NRT, where P is the pressure of the airflow inside the intake limiting metering tank 2, V is the sum of the volumes of the lower side of the intake limiting metering tank 2 including the exhaust channel 18, and V is constant, R is the molar mass of the gas inside the intake limiting metering tank 2, then we can preset the gas in the intermediate gas storage tank 6 to be carbon dioxide, then the value of R is the molar mass of carbon dioxide, or we can take the average molar mass of the gas under normal atmospheric pressure, the value of R is constant, T is the temperature value, and N is the calculation coefficient;

[0038] Step 2: Before the overall equipment is put into use, firstly, according to the two sets of formulas PV=NRT and P=F / S, and setting the venting channel 18 on the piston plate 16 to be disconnected from the gas collection hood 17, and preset a temperature value T1, T1 is detected in real time by the temperature sensor 3 at the corresponding position, and N=PV / RT is calculated in reverse by using PV=NRT. Through multiple calculations, the N coefficient in the equipment is calculated. Finally, according to T=PV / NR, or T=(F / S) / NR, the real-time gas temperature inside the air intake limiting metering tank 2 can be fed back in real time. Then, when the box heating structure 4 supplies heat to the drying box body 1, the heating temperature is calculated by combining the real-time values ​​on the temperature sensor 3 and the weight sensor 15.

[0039] Step 3: This combines Step 1 and Step 2. The calculation method can be implemented by a computer program, which is a common method in the corresponding field and will not be elaborated on here.

[0040] When drying and curing the adhesive inside the drying chamber 1, the drying temperature gradient is set, and each venting channel 18 is preset to correspond to a gradually increasing or decreasing drying temperature in a clockwise or counterclockwise direction. For example, when the drying temperature is 100°, when the temperature inside the air intake limiting metering cylinder 2 reaches 100° according to the above computer program, the piston plate 16 is rotated by a stepper motor to rotate a certain angle, so that the corresponding venting channel 18 is connected to the air collection hood 17. Then the hot airflow enters the drying chamber 1 along the embedded pipe 11 and the connecting pipe 10, and dries the adhesive at this temperature.

[0041] When the drying temperature needs to be increased to 200°, the piston plate 16 is rotated in the opposite direction again to disconnect the exhaust channel 18 from the gas collection hood 17 until the internal temperature of the air intake limiting metering barrel 2 rises to 200°. Then the exhaust channel 18 is connected to the gas collection hood 17 again, thereby inputting a hot airflow at a temperature of 200° into the drying chamber body 1.

[0042] By combining the above steps, a hot airflow with a precise temperature value can be input into the drying oven body 1 to solve the aforementioned technical problem.

[0043] Example 2

[0044] This section aims to generate a stable airflow inside the drying chamber body 1. This addresses the issue of hot air "stapping" in a certain area during the drying process at the corresponding temperature gradient. This can lead to damage to the quality of the adhesive in one area of ​​the drying chamber body 1, or poor drying of the adhesive in another area, resulting in low overall drying efficiency. The details are as follows:

[0045] refer to Figure 4 and Figure 5 Multiple diversion plates 19 are evenly installed vertically on the outer walls of both sides inside the drying oven body 1. Each diversion plate 19 has an opening between its end and the inner wall of the drying oven body 1.

[0046] The upper surface of each manifold 19 is parallel to the horizontal plane, and the lower surface of each manifold 19 is inclined upward along the direction close to the opening.

[0047] Working principle / Usage principle and advantages: During the manufacturing process of diodes, protective glue is applied to the diodes and they are placed on a tray or other structure. Then, a batch of diodes are put into the drying oven body 1 for drying and curing. This is a common method in diode glue drying operations, and will not be elaborated on here.

[0048] When placing the trays holding the diodes, the upper side of each shunt plate 19 is horizontal to hold the trays and other structures. Hot air is blown out from the lowest surface of the drying chamber body 1, and the hot air rises. This restricts the curved shape and installation method of the lower side of each shunt plate 19, allowing the hot air to flow upward evenly along multiple S-shapes. This ensures that the hot air can be evenly blown onto each diode, guaranteeing that the hot air can act evenly on the diodes and thus ensuring drying efficiency.

[0049] Example 3

[0050] This section is mainly for refining the preheating, temperature-raising drying, and temperature-cooling / heat-preserving drying processes. Based on the premise of Example 1, it allows the input of airflow at the corresponding temperature into the drying chamber body 1. It satisfies the requirement of converting low-temperature airflow to high-temperature airflow, and also allows the high-temperature airflow to cool down to low-temperature airflow, thus satisfying different aspects of the drying operation, as detailed below:

[0051] refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 The transfer air storage box 6 has a double-layer structure. One end of the assembly return air pipe 9 and the assembly inlet air pipe 20 are both connected to the lower structure inside the transfer air storage box 6. An air inlet grille is installed on the outer wall of the upper structure of the transfer air storage box 6. An auxiliary bidirectional fan 8 is fixedly installed on one end of the upper surface of the drying box body 1. A replacement air pipe 7 is installed on both the inlet and outlet ends of the auxiliary bidirectional fan 8. One of the replacement air pipes 7 is connected to the upper part of the interior of the drying box body 1, and the other replacement air pipe 7 is connected to the interior of the upper structure of the transfer air storage box 6. A solenoid valve body 24 is installed on one of the replacement air pipes 7.

[0052] An auxiliary one-way fan 5 is provided between the box-type heating structure 4 and the intermediate air storage box 6. The assembly air inlet pipe 20 is connected to the air inlet end and air outlet end on the auxiliary one-way fan 5.

[0053] A connecting fastener 21 is fixedly installed at the internal position where the air intake pipe 20 of the assembly intersects with the air intake end of the box-type heating structure 4. A connecting rod 22 is slidably installed on the connecting fastener 21 along the vertical distribution. A rubber cap 23 is fixedly installed at the top of the connecting rod 22. The cross-section of the rubber cap 23 is a downward curved arc shape.

[0054] Working principle / usage principle and advantages: It is divided into preheating, temperature raising and drying, and cooling / heat preservation drying stages.

[0055] Preheating: At this time, the auxiliary unidirectional fan 5 needs to be started and the auxiliary bidirectional fan 8 needs to be turned off. The room temperature gas inside the transfer storage tank 6 is blown into the box-type heating structure 4. At this time, the exhaust channel 18 on the piston plate 16 is connected to the gas collection hood 17, and the initially heated airflow is blown into the drying oven body 1 to preheat its interior.

[0056] Heating and drying: This part requires combining the three steps in Example 1 to input hot air at the corresponding temperature into the drying chamber body 1. It should be noted that: at this time, the auxiliary unidirectional fan 5 does not need to be started. Only the assembly air inlet pipe 20 is kept in the normally open state. According to the principle of thermal circulation, the pressure difference between the hot air streams causes the hot air streams to circulate in the following order: transfer storage tank 6 - air inlet limiting metering tank 2 - connecting pipe 10 - embedded pipe 11 - inside the drying chamber body 1 - assembly return pipe 9 - transfer storage tank 6.

[0057] Cooling / Insulation Drying: This part is to reduce the drying temperature inside the drying chamber 1 to the corresponding temperature. At this time, the exhaust channel 18 on the piston plate 16 is not connected to the air collection hood 17, and the auxiliary bidirectional fan 8 is started to replace the air inside the drying chamber 1 with the upper structure of the transfer air storage box 6, and exhaust the hot air at a higher temperature inside the drying chamber 1. The real-time temperature is detected by the temperature sensor 3 installed on the drying chamber 1.

[0058] Finally, when the critical temperature environment is reached, the auxiliary bidirectional fan 8 is turned off, and hot air at the corresponding temperature is introduced into the drying chamber body 1 again as described in Example 1, until the overall drying and curing operation is completed.

[0059] In summary: Electric heating is still used and optimized to dry and cure diode adhesive. A hot air flow system is set up in the drying oven to meet different process requirements. While ensuring accurate heat supply, it can also achieve uniform hot air diffusion, further promoting the drying efficiency of the adhesive without damaging it.

[0060] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0061] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A drying and curing device for adhesives used in diode production, comprising a drying chamber body (1), a box-type heating structure (4), and a transfer and storage gas box (6), characterized in that, The drying oven body (1) is equipped with a hot and cold air circulation system, which consists of a connecting pipe (10), an embedded pipe (11), an air intake limiting metering tank (2), an assembly air intake pipe (20), and an assembly air return pipe (9). The embedded pipe (11) is laid in the bottom surface of the inner wall of the drying oven body (1), and the embedded pipe (11), the connecting pipe (10), and the air intake limiting metering tank (2) are connected. The limiting metering barrel (2) is installed on the exhaust end of the upper side of the box heating structure (4). One end of the assembly air inlet pipe (20) is connected to the air inlet end of the lower side of the box heating structure (4), and the other end of the assembly air inlet pipe (20) is connected to the interior of the transfer storage tank (6). One end of the assembly return pipe (9) is installed at the center point of the upper end of the drying box body (1), and the other end of the assembly return pipe (9) is connected to the interior of the transfer storage tank (6). A piston plate (16) is slidably installed inside the air intake limiting metering barrel (2), and a stepper motor (13) is fixedly installed at the center point of the upper end of the air intake limiting metering barrel (2). The drive shaft of the stepper motor (13) passes downward through the interior of the air intake limiting metering barrel (2), and a triangular plate (14) is fixedly installed at the end of the drive shaft of the stepper motor (13). A weight sensor (15) is fixedly installed at the triangular position on the lower surface of the triangular plate (14). The drive shaft of each weight sensor (15) is fixedly connected to the piston plate (16). Multiple air venting channels (18) are opened inside the piston plate (16). An opening matching the end of the air venting channel (18) is opened on the outer circumference of the air intake limiting metering barrel (2). A gas collecting hood (17) is installed at the opening position of the air intake limiting metering barrel (2) corresponding to the opening position of the air venting channel (18). The gas collecting hood (17) is fixedly connected to the connecting pipe (10).

2. The adhesive drying and curing equipment for diode production according to claim 1, characterized in that, Temperature sensors (3) are fixedly installed on the lower side of the air intake limiting metering barrel (2) and on one side of the upper surface of the drying box body (1). The temperature probes of the two temperature sensors (3) extend into the interior of the air intake limiting metering barrel (2) and the drying box body (1), respectively.

3. The adhesive drying and curing equipment for diode production according to claim 1, characterized in that, Multiple heat-resistant ceramic nozzles (12) are installed on the embedded pipeline (11) in a linear arrangement. Each heat-resistant ceramic nozzle (12) is inclined in the vertical direction, and the inclination angle and inclination direction of each heat-resistant ceramic nozzle (12) are different.

4. The adhesive drying and curing equipment for diode production according to claim 1, characterized in that, Multiple diversion plates (19) are evenly installed vertically on the outer walls of both sides of the drying box body (1), and an opening is provided between the end of each diversion plate (19) and the inner wall of the drying box body (1). The upper surface of each of the diverter plates (19) is parallel to the horizontal plane, and the lower surface of each of the diverter plates (19) is inclined upward along the direction close to the opening.

5. The adhesive drying and curing equipment for diode production according to claim 1, characterized in that, The transfer air storage box (6) has a double-layer structure inside. One end of the assembly return air pipe (9) and the assembly intake air pipe (20) are both connected to the lower structure inside the transfer air storage box (6). An intake grille is installed on the outer wall of the upper structure of the transfer air storage box (6).

6. The adhesive drying and curing equipment for diode production according to claim 1, characterized in that, An auxiliary bidirectional fan (8) is fixedly installed on one end of the upper surface of the drying box body (1). A displacement air pipe (7) is installed on both the air inlet and air outlet of the auxiliary bidirectional fan (8). One of the displacement air pipes (7) is connected to the upper side of the interior of the drying box body (1), and the other displacement air pipe (7) is connected to the interior of the upper structure of the transfer storage tank (6). A solenoid valve body (24) is provided on one of the displacement air pipes (7).

7. The adhesive drying and curing equipment for diode production according to claim 1, characterized in that, An auxiliary one-way fan (5) is provided between the box-type heating structure (4) and the transfer air storage box (6), and the air inlet pipe (20) of the assembly is connected to the air inlet end and the air outlet end on the auxiliary one-way fan (5); A connecting fastener (21) is fixedly installed at the internal position where the air intake pipe (20) of the assembly intersects with the air intake end of the box-type heating structure (4). A connecting rod (22) is slidably installed on the connecting fastener (21) along the vertical direction. A rubber cap (23) is fixedly installed at the top of the connecting rod (22). The cross-section of the rubber cap (23) is a downward curved arc shape.

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