Vacuum dryer

Abstract

The utility model discloses a vacuum drying machine which comprises a machine frame, a conveying belt is arranged in the middle of the machine frame, a spraying device, a vacuum drying device and a cooling device are arranged on the machine frame, a lifting type conveying mechanism is arranged at the discharging end of the machine frame, the spraying device is arranged at the feeding end of the machine frame, and the vacuum drying device is arranged on one side of the spraying device. The cooling device is arranged between the spraying device and the lifting type conveying mechanism; the casting part cleaning and drying device integrates cleaning, drying and cooling processes, and the conveying device is arranged behind the casting part cleaning and drying device and can be highly matched with an assembly line of an enterprise, that is, the casting part cleaning and drying device can successfully convey casting parts to be cleaned and dried to the assembly line of the enterprise, and workers do not need to carry the casting parts frequently; and a cooling tool is further arranged, so that the dried casting part can be cooled in time.

Description

Technical Field

[0001] This utility model relates to the technical field of drying equipment, and in particular to a vacuum dryer. Background Technology

[0002] After the castings are produced, they need to be deburred. After deburring, there are still some residual waste chips in the castings, so they need to be rinsed and cleaned. After cleaning, the cleaning liquid needs to be dried.

[0003] A hot air drying system and method are disclosed. Application number CN202410354088.0 describes a hot air drying system comprising: a frame, a drying tray, a hot air supply device, a drying chamber, a first housing lifting assembly, a drying barrel loading and unloading mechanism, an exhaust device, a conveying mechanism, and a clamping robotic arm. The hot air supply device is adapted to provide hot air. The drying tray includes a separately connected drying pallet and a drying barrel, with the drying barrel resting on the drying pallet. The drying chamber includes a first housing and a second housing, with a drying station between the first housing and the second housing suitable for placing the drying barrel. The first housing, the second housing, and the drying barrel are adapted to form a drying cavity.

[0004] However, this drying system cannot effectively connect to internal and external production lines, requiring workers to transfer the items to be dried, which affects the efficiency of the drying operation. Furthermore, its automation level is low. The heating element is located inside the blower, which pipes heated air into the drying chamber. However, if the ambient temperature is low or the airflow is not properly controlled, the temperature inside the drying chamber cannot be well controlled, and heat loss easily occurs during gas transport. Additionally, this equipment cannot be connected to subsequent industrial production lines, failing to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum dryer to overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vacuum dryer includes a frame with a conveyor belt in the middle. The frame is equipped with a spraying device, a vacuum drying device, and a cooling device. The discharge end of the frame is equipped with a lifting conveying mechanism. The spraying device is located at the feed end of the frame. The vacuum drying device is located on one side of the spraying device. The cooling device is located between the spraying device and the lifting conveying mechanism.

[0008] To elaborate further, the spraying device includes a spraying frame and a pair of baffles. The spraying frame is fitted onto the conveyor belt, and the pair of baffles are movably connected to the frame via a drive mechanism. The pair of baffles are arranged on both sides of the spraying frame, and the spraying frame is movably connected to the frame. The spraying frame has nozzles that face towards the center of the frame.

[0009] To elaborate further, the spraying device includes a rodless cylinder, which is mounted on the frame. The spray frame is fixedly connected to the output end of the rodless cylinder, and the rodless cylinder controls the movement of the spray frame relative to the frame.

[0010] To elaborate further, the vacuum drying device includes an upper cover and a lower cover fixedly mounted on a frame. A heating tube is installed inside the lower cover, and a sealing strip is provided around the top surface of the lower cover. The lower cover is positioned below the conveyor belt, and the upper cover is mounted above the lower cover to cover the lower cover and form a sealed chamber. The upper cover is movably connected to the frame in a lifting manner.

[0011] To elaborate further, the cooling device includes a cooling shroud, which is connected to a chiller located on one side of the frame via an air pipe.

[0012] To elaborate further, the lifting conveying mechanism includes a support frame, on which a conveying frame is slidably mounted via a linear guide rail, and multiple conveying rollers are rotatably connected to the conveying frame.

[0013] To elaborate further, a drive motor is installed on the support frame to control the lifting and lowering movement of the conveyor frame relative to the support frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model integrates cleaning, drying, and cooling processes, and is equipped with a conveyor device that is highly compatible with the company's production line. In other words, this utility model can successfully transfer the castings to be cleaned and dried to the company's production line without the need for workers to frequently handle them. It is also equipped with cooling fixtures to cool down the dried castings in a timely manner. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention, ignoring the internal conveyor belt.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model, ignoring the sheet metal and internal conveyor belt.

[0018] Attached image annotations:

[0019] 1. Spray frame; 2. Spray head; 3. Baffle; 4. Rodless cylinder; 5. Upper cover; 6. Lower cover; 7. Heating tube; 8. Cooling cover; 9. Air conditioner; 10. Support frame; 11. Drive motor; 12. Linear guide rail; 13. Conveyor frame; 14. Conveyor roller; 15. Movable installation assembly. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. When the number of elements is referred to as "multiple," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings:

[0024] like Figure 1-2 As shown, a vacuum dryer is provided in this embodiment, including a frame, and a conveyor belt is provided in the middle of the frame. The conveyor belt runs through each processing station. However, it is worth mentioning that the above-mentioned conveyor belt is segmented, that is, it consists of three conveyor belts. The conveyor belt at the vacuum drying device is separate because the upper and lower covers need to be closed to form a vacuum sealed chamber. Therefore, a conveyor belt platform can preferably be placed in the lower cover 6.

[0025] The frame is equipped with a spraying device, a vacuum drying device, and a cooling device. A lifting conveyor mechanism is located at the discharge end of the frame. The spraying device is positioned at the feed end of the frame, the vacuum drying device is located to one side of the spraying device, and the cooling device is positioned between the spraying device and the lifting conveyor mechanism. The castings sequentially undergo spray cleaning, vacuum heating for dehydration and drying, and cooling.

[0026] In this embodiment, the spraying device includes a spray frame 1 and a pair of baffles 3. The spray frame 1 is mounted on a conveyor belt, and the spray frame 1 has nozzles 2 facing towards the center of the frame. Therefore, the workpieces placed on the conveyor belt can be thoroughly sprayed and rinsed by the nozzles 2 that are all facing inward. To prevent water from splashing to other places, baffles 3 are provided to block water droplets. The pair of baffles 3 are movably connected to the frame via a drive mechanism. The pair of baffles 3 are arranged on both sides of the spray frame 1. The drive mechanism can optionally be a lifting cylinder, which controls the raising and lowering of the baffles 3.

[0027] The spray frame 1 is movably connected to the frame, specifically by left and right horizontal movement. The spraying device includes a rodless cylinder 4, which is mounted on the frame. The spray frame 1 is a rectangular frame with multiple spray nozzles 2 arranged inside. A movable mounting assembly 15 is fixedly installed at the output end of the rodless cylinder 4. Both ends of the movable mounting assembly 15 are slidably mounted on the frame. A pair of linear guide rails 12 can be placed on the frame, and the two ends of the movable mounting assembly 15 are slidably connected to the frame by the linear guide rails 12. The rodless cylinder 4 controls the movement of the spray frame 1. The spray frame 1 is fixedly connected to the output end of the rodless cylinder 4, and the rodless cylinder 4 controls the horizontal left and right movement of the spray frame 1 relative to the frame.

[0028] Further explanation: The vacuum drying device includes an upper cover 5 and a lower cover 6 fixedly mounted on a frame. A heating tube 7 is installed inside the lower cover 6, and since the heating tube 7 is adjacent to the casting, temperature control can be more precise, preventing significant heat loss. A sealing strip surrounds the top surface of the lower cover 6. The lower cover 6 is positioned below a conveyor belt, and the upper cover 5 is mounted above the lower cover 6 to form a sealed chamber. A vacuum machine connects this sealed chamber to the outside to create a closed vacuum environment, effectively lowering the boiling point of water and improving drying efficiency. The upper cover 5 is movably connected to the frame via a lifting mechanism. Preferably, a lifting cylinder is installed on the frame to control the lifting of the upper cover 5 relative to the frame, allowing the upper cover 5 to close and separate from the lower cover 6. Optionally, a conveyor belt platform is fixedly installed inside the lower cover 6 to hold the conveyor belt, facilitating the sealing and closing of the upper and lower covers.

[0029] In this embodiment, the cooling device includes a cooling shroud 8, which is connected to a cooler 9 installed on one side of the frame via an air pipe. The cooling shroud 8 can release cold air to cool the building components.

[0030] In this embodiment, the lifting conveyor mechanism includes a support frame 10, on which a conveyor frame 13 is slidably mounted via a linear guide rail 12. The conveyor frame 13 moves up and down via the linear guide rail 12. A drive motor 11 is also mounted on the support frame 10 to control the lifting and lowering movement of the conveyor frame 13 relative to the support frame 10. Multiple conveyor rollers 14 are rotatably connected to the conveyor frame 13. When a workpiece is placed on the conveyor frame 13, the rotation of the conveyor rollers 14 feeds the workpiece. A liftable conveyor frame 13 is provided because the height of the production line varies from company to company; therefore, a liftable conveyor frame 13 can adapt to production lines of different heights, thus having a wider range of applications.

[0031] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. For those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A vacuum dryer, including a frame, characterized in that: A conveyor belt is installed in the middle of the frame. A spraying device, a vacuum drying device and a cooling device are installed on the frame. A lifting conveying mechanism is installed at the discharge end of the frame. The spraying device is located at the feed end of the frame. The vacuum drying device is located on one side of the spraying device. The cooling device is located between the spraying device and the lifting conveying mechanism.

2. The vacuum dryer as described in claim 1, characterized in that: The spraying device includes a spraying frame and a pair of baffles. The spraying frame is fitted onto a conveyor belt. The pair of baffles are movably connected to the frame via a drive mechanism. The pair of baffles are arranged on both sides of the spraying frame. The spraying frame is movably connected to the frame. The spraying frame has nozzles that face towards the center of the frame.

3. The vacuum dryer as described in claim 2, characterized in that: The spraying device includes a rodless cylinder, which is mounted on the frame. The spray frame is fixedly connected to the output end of the rodless cylinder, and the rodless cylinder controls the movement of the spray frame relative to the frame.

4. The vacuum dryer as described in claim 1, characterized in that: The vacuum drying device includes an upper cover and a lower cover fixedly mounted on a frame. The lower cover is equipped with a heating tube, and a sealing strip is provided around the top surface of the lower cover. The lower cover is positioned below the conveyor belt, and the upper cover is mounted above the lower cover to cover the lower cover and form a sealed chamber. The upper cover is movably connected to the frame by lifting.

5. The vacuum dryer as described in claim 1, characterized in that: The cooling device includes a cooling shroud, which is connected to a chiller located on one side of the frame via an air pipe.

6. The vacuum dryer as described in claim 1, characterized in that: The lifting conveying mechanism includes a support frame, on which a conveying frame is slidably mounted via a linear guide rail, and multiple conveying rollers are rotatably connected to the conveying frame.

7. The vacuum dryer as described in claim 6, characterized in that: A drive motor is installed on the support frame to control the lifting and lowering movement of the conveyor frame relative to the support frame.

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