Groove type vacuum drying system

Abstract

The utility model discloses a groove type vacuum drying system which comprises an equipment frame, drying equipment arranged in the equipment frame and an installation frame used for placing the drying equipment. The drying equipment comprises a tank body with an opening in the upper portion and a tank cover which is arranged above the tank body and can ascend, descend and translate relative to the tank body. The groove body is provided with an air inlet connector, an air exhaust connector, a temperature measuring device and a heating device used for drying a workpiece. The multiple drying devices are arranged, can operate independently and can also cooperate with one another, and different productivity requirements can be met. The air exhaust interface is externally connected with vacuumizing equipment, so that a vacuum environment can be formed in the tank body, water vapor can be quickly discharged, the drying time of a workpiece is shortened, and the energy consumption is reduced; during drying treatment, gas can be conveyed into the tank body through the gas inlet connector, heat convection is formed in the tank body, and the drying effect is improved; and the heating devices in different areas can be controlled according to the measured temperature, so that the workpieces in different areas are uniformly heated.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum drying, in particular to a trough type vacuum drying system. Background Art

[0002] During the production of solar cells, the washed cells need to be placed in a drying device for drying. The current drying method uses multiple hot air troughs, where the cells are placed and then blown dry by heating and circulating the hot air. This drying method has the following problems: (1) The drying time is long, the drying efficiency is low, and the energy consumption is high; (2) When the hot air passes through the cells, it is easy to cause cell contamination and oxidation, affecting the yield rate; (3) The need for a circulating fan results in the equipment being too large and taking up too much space.

[0003] Patent application CN 118168285 A discloses a vacuum drying apparatus and method. The vacuum drying apparatus comprises a drying tank, a vacuum system, a heating system, and a drive system for driving the drying tank. It also includes a loading system for loading the material to be vacuum-dried and a securing system for securing the loading system. Compared to hot air drying, this vacuum drying apparatus can avoid contamination and oxidation of the battery cells and reduce the size of the drying apparatus, but its drying efficiency is lower. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a trough type vacuum drying system, which can improve the drying efficiency of workpieces and improve the drying effect.

[0005] The technical solution of the utility model to solve the above problems is as follows:

[0006] A trough-type vacuum drying system comprises an equipment frame, a plurality of drying devices arranged in the equipment frame, and a mounting frame for placing the drying devices; the drying devices comprise a trough body with an opening at the top, and a trough cover arranged above the trough body and capable of being raised, lowered, and translated relative to the trough body; the trough body is provided with an air inlet interface and an air exhaust interface; and a heating device for drying workpieces is provided inside the trough body.

[0007] Preferably, the air inlet port is provided at at least one of the side wall and the bottom of the tank body.

[0008] Preferably, the air extraction interface is provided at at least one of the side wall and the bottom of the tank body.

[0009] Preferably, the material of the heating device is selected from quartz or ceramic.

[0010] Preferably, the heating method of the heating device is radiation heating.

[0011] Preferably, the radiation heating method is selected from at least one of resistance wire heat radiation and infrared heat radiation.

[0012] Preferably, the heating device is arranged at at least one of the side wall and the bottom of the tank body.

[0013] Preferably, the mounting frame is provided with casters for facilitating movement of the mounting frame, and supporting feet for facilitating fixation of the mounting frame.

[0014] Preferably, the distribution direction of the trough bodies of the plurality of drying devices is perpendicular to the translation direction of the trough cover.

[0015] Preferably, the trough type vacuum drying system further comprises a lifting mechanism connected to the trough cover for driving the trough cover to rise and fall, and a translation mechanism connected to the lifting mechanism for driving the trough body to translate.

[0016] Preferably, the lifting mechanism is selected from at least one of a pneumatic cylinder, an oil cylinder, a motor, and a gear.

[0017] Preferably, the lifting mechanism is arranged below the tank cover; the lifting mechanism includes a fixed end and a telescopic end connected to the tank cover.

[0018] Preferably, the translation mechanism is selected from at least one of a pneumatic system, an electric system, and a hydraulic system.

[0019] Preferably, the translation mechanism includes a horizontally arranged guide rail, and a moving component connected to the guide rail and movable relative to the guide rail; the moving component is connected to the lifting mechanism.

[0020] Preferably, the fixed end of the lifting mechanism is mounted on the moving assembly.

[0021] Preferably, the width of the mounting frame is greater than the width of the trough body, and mounting platforms for mounting the translation mechanism are provided on both sides of the mounting frame.

[0022] Preferably, a temperature measuring device is provided in the tank body; the temperature measuring device is distributed at at least one location on the side wall or the bottom of the tank body.

[0023] Preferably, a fetching and delivering mechanism for placing the workpiece into the trough or taking the workpiece out of the trough is provided in the equipment frame.

[0024] Preferably, the picking and delivering mechanism includes a transplanting robot.

[0025] Preferably, the tank body, tank cover and mounting frame are all made of corrosion-resistant metal.

[0026] The corrosion-resistant metal material can be the metal itself that is corrosion-resistant or the metal surface can be treated with corrosion-resistant materials. The corrosion-resistant treatment can be to coat the metal surface with corrosion-resistant materials.

[0027] The utility model has the following beneficial effects:

[0028] (1) The utility model trough type vacuum drying system is provided with multiple drying devices, which can operate independently or cooperate with each other to meet different production capacity requirements and improve the drying efficiency of workpieces;

[0029] (2) The tank body is connected to an exhaust interface and an air inlet interface. The exhaust interface is connected to a vacuum pumping device to form a vacuum environment in the tank body, which is conducive to the rapid discharge of water vapor, shortening the drying time of the workpiece and reducing energy consumption. During the drying process, gas can be transported to the inside of the tank body through the air inlet interface to form heat convection in the tank body, thereby improving the drying effect.

[0030] (3) A temperature measuring device is also provided in the tank body, which controls the heating devices in different areas according to the measured temperature to ensure that the workpieces in different areas are heated evenly, thereby improving the drying effect of the workpieces and thus improving the yield rate of the workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A side view of a trough-type vacuum drying system disclosed in an embodiment of the present utility model;

[0032] Figure 2 This is a front view of a trough-type vacuum drying system disclosed in an embodiment of the present utility model;

[0033] Figure 3 This is a schematic structural diagram of the drying equipment and mounting frame disclosed in an embodiment of the present utility model;

[0034] Figure 4 A side view of the tank body disclosed in an embodiment of the present utility model;

[0035] Figure 5 This is a front view of the tank body disclosed in an embodiment of the present utility model;

[0036] Figure 6 A side view of the tank cover, lifting mechanism and translation mechanism disclosed in an embodiment of the utility model;

[0037] In the figure: 1-equipment frame, 21-tank body, 211-heating device, 212-air inlet interface, 213-exhaust interface, 214-temperature measuring device, 22-tank cover, 221-lifting mechanism, 222-translation mechanism, 3-mounting frame, 4-transplanting manipulator, 5-workpiece. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to illustrate the utility model, and are not exhaustive embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0039] A tank type vacuum drying system, such as Figure 1 As shown, the drying device includes an equipment frame 1 and a drying device placed in the equipment frame 1. The drying device includes a tank body 21, which is made of metal and has a corrosion-resistant surface treatment to increase the life of the tank body 21 and avoid contamination of the workpiece 5 due to corrosion of the tank body 21.

[0040] The trough 21 is placed above the mounting frame 3. The mounting frame 3 is wider than the trough 21, and mounting platforms are provided on both sides of the mounting frame 3. The mounting frame 3 is made of metal and its surface has also been treated for corrosion resistance, such as by coating it with a corrosion-resistant material. Casters are provided at the bottom of the mounting frame 3 to facilitate the movement of the mounting frame 3 and the trough 21 mounted on top of the mounting frame 3. In addition, support feet are provided at the bottom of the mounting frame 3 to match the casters and facilitate the fixing of the mounting frame 3.

[0041] The trough 21 has an opening above it, and a trough cover 22 is disposed above the trough 21. The trough cover 22 can be moved relative to the trough 21 to open or close the trough 21. The trough cover 22 is also made of metal, and its surface has been treated for corrosion resistance to increase the life of the trough cover 22 and prevent contamination of the workpiece 5 due to corrosion of the trough cover 22.

[0042] The trough cover 22 is connected to a lifting mechanism 221 and a translation mechanism 222, which are used to drive the trough cover 22 to move upward and downward. The lifting mechanism 221 is arranged on both sides of the trough cover 22 and connected to the bottom of the trough cover 22. By controlling the trough cover 22 to move upward or downward, the trough cover 22 moves vertically away from or closer to the trough body 21. The lifting mechanism 221 can be a pneumatic cylinder, an oil cylinder, a motor, a gear, etc. In this embodiment, the lifting mechanism 221 is a pneumatic cylinder, which includes a fixed end and a telescopic end. The telescopic end of the cylinder is fixedly connected to the trough cover 22. When the telescopic end is extended, the trough cover 22 moves upward, and when the telescopic end is retracted, the trough cover 22 moves downward.

[0043] The translation mechanism 222 is disposed below the lifting mechanism 221 and is fixedly connected to the lifting mechanism 221. Its own horizontal movement drives the lifting mechanism 221 to move, thereby driving the trough cover 22 to move horizontally, causing the trough cover 22 to move horizontally closer to or farther from the upper opening of the trough body 21. The translation mechanism 222 can be a pneumatic system, an electric system, a hydraulic system, etc. In this embodiment, the translation mechanism 222 is an electric system, including a guide rail and a moving assembly disposed above the guide rail, and the moving assembly is fixedly connected to the lifting mechanism 221. To facilitate the control of the trough cover 22, the translation mechanism 222 is disposed above the mounting platform of the mounting frame 3.

[0044] The equipment frame 1 can contain multiple drying devices, capable of simultaneously drying multiple batches of workpieces 5 to meet high production capacity requirements. The drying devices can be connected in series or in parallel, meaning they can operate simultaneously or independently. The troughs 21 of the multiple drying devices are arranged perpendicular to the horizontal movement direction of the trough covers 22 to facilitate batch loading and unloading.

[0045] A fetching and delivering mechanism is further provided in the equipment frame 1 for placing the workpiece 5 into the trough 21 or taking the workpiece 5 out of the trough 21. In this embodiment, the fetching and delivering mechanism is a transplanting robot 4.

[0046] A heating device 211 is provided in the trough body 21 for drying the workpiece 5 placed in the trough body 21. The material of the heating device 211 can be quartz or ceramic. In the present embodiment, the material of the heating device 211 is ceramic. There are multiple heating devices 211, which can be arranged on the side wall or bottom of the trough body 21 or on both the side wall and the bottom, so as to uniformly heat the workpiece 5. When arranged on the side wall, the multiple heating devices 211 can be evenly arranged along the height direction of the trough body 21. When arranged at the bottom, the multiple heating devices 211 can be evenly arranged along the width direction of the trough body 21. In the above two distribution methods, the single heating devices 211 are distributed along the length direction of the trough body 21.

[0047] A temperature measuring device 214 is also provided in the trough body 21. The temperature measuring device 214 can be installed on the side wall or bottom of the trough body 21 or on both the side wall and the bottom to detect the temperature of different areas in the trough body 21. Then, according to the temperature data detected by the temperature measuring device 214, the heating devices 211 in different areas can be controlled to ensure that the workpieces 5 in different areas are heated evenly, thereby improving the drying efficiency.

[0048] The tank body 21 is provided with an exhaust port 213 , which is in communication with the interior of the tank body 21 and is connected to an external vacuum pump. This port can quickly extract the gas within the tank, creating a vacuum environment within the tank body 21 , which facilitates the rapid discharge of moisture and shortens the drying time of the workpiece 5 . The exhaust port 213 can be installed on the side wall or bottom of the tank body 21 , or on both the side wall and bottom. In this embodiment, the exhaust port 213 is provided at the bottom of the tank body 21 .

[0049] The tank body 21 is also provided with an air inlet port 212, which communicates with the interior of the tank body 21. During the drying process, depending on process requirements, air can be delivered into the tank body 21 through the air inlet port 212, creating heat convection within the tank body 21 and enhancing the drying effect. Alternatively, air can be introduced into the tank body 21 before opening the tank cover 22 to break the vacuum environment within the tank body 21. The air inlet port 212 can be installed on the side wall or bottom of the tank body 21, or on both the side wall and bottom. In this embodiment, the air inlet port 212 is located at the bottom of the tank body 21.

[0050] The working process of the tank type vacuum drying system disclosed in this embodiment is as follows:

[0051] S1. Start the lifting mechanism 221 to move the tank cover 22 upward, and then use the translation mechanism 222 to move the tank cover 22 and the lifting mechanism 221 to the rear of the tank body 21, so that the upper opening of the tank body 21 is fully opened;

[0052] S2. Use the transfer robot 4 to place one or more workpieces 5 from other workstations into the tank 21. After placement, the transfer robot 4 leaves the tank 21.

[0053] S3, the translation mechanism 222 moves the tank cover 22 and the lifting mechanism 221 to the top of the tank body 21, and the lifting mechanism 221 controls the tank cover 22 to move downward to seal the tank body 21;

[0054] S4. The vacuuming device adjusts the vacuum degree in the tank body 21 to a preset range through the exhaust port 213. During the vacuuming process, the heating device 211 is activated. The heating power of the heating device 211 can be adjusted under different vacuum degrees. While the heating device 211 and the vacuuming device are activated, nitrogen or clean air can be intermittently introduced into the tank body 21 through the air inlet port 212 to ensure rapid replacement and remove moisture in the tank body 21. After the drying process is completed, the heating device 211, the exhaust port 213, and the air inlet port 212 are turned off.

[0055] S5. Start the lifting mechanism 221 to move the trough cover 22 upward, and then use the translation mechanism 222 to move the trough cover 22 and the lifting mechanism 221 to the rear of the trough body 21, and the upper opening of the trough body 21 is fully opened; control the transplanting robot 4 to take out the workpiece 5 in the trough body 21 and place it on other workstations, thus completing the drying process of a batch of workpieces 5.

Claims

1. A trough type vacuum drying system, characterized in that: The invention comprises an equipment frame (1), a plurality of drying devices arranged in the equipment frame (1), and a mounting frame (3) for placing the drying devices; the drying devices comprise a trough body (21) with an opening arranged on the top, and a trough cover (22) arranged above the trough body (21) and capable of lifting and translating relative to the trough body (21); the trough body (21) is provided with an air inlet interface (212) and an air exhaust interface (213); and a heating device (211) for drying a workpiece (5) is provided inside the trough body (21).

2. A tank type vacuum drying system according to claim 1, characterized in that: The distribution direction of the trough bodies (21) of the plurality of drying devices is perpendicular to the translation direction of the trough cover (22).

3. A tank type vacuum drying system according to claim 1, characterized in that: The trough-type vacuum drying system further comprises a lifting mechanism (221) connected to the trough cover (22) for driving the trough cover (22) to rise and fall, and a translation mechanism (222) connected to the lifting mechanism (221) for driving the trough body (21) to translate.

4. A tank type vacuum drying system according to claim 3, characterized in that: The lifting mechanism (221) is arranged below the tank cover (22); the lifting mechanism (221) comprises a fixed end and a telescopic end connected to the tank cover.

5. A tank type vacuum drying system according to claim 3, characterized in that: The translation mechanism (222) comprises a horizontally arranged guide rail and a moving assembly connected to the guide rail and movable relative to the guide rail; the moving assembly is connected to the lifting mechanism (221).

6. A tank type vacuum drying system according to claim 3, characterized in that: The width of the mounting frame (3) is greater than the width of the trough body (21), and mounting platforms for mounting the translation mechanism (222) are provided on both sides of the mounting frame (3).

7. A tank type vacuum drying system according to claim 1, characterized in that: A temperature measuring device (214) is provided in the tank body (21); the temperature measuring device (214) is distributed at at least one location on the side wall or the bottom of the tank body (21).

8. The tank type vacuum drying system according to claim 1, characterized in that: A fetching and delivering mechanism for placing a workpiece (5) into the trough (21) or taking the workpiece (5) out of the trough (21) is provided in the equipment frame (1).

9. A tank type vacuum drying system according to claim 8, characterized in that: The picking and delivering mechanism comprises a transplanting manipulator (4).

10. The tank type vacuum drying system according to claim 1, characterized in that: The tank body (21), tank cover (22), and mounting frame (3) are all made of corrosion-resistant metal.

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