Vacuum drier with convenient discharge

Abstract

The utility model discloses a vacuum drying -machine of convenient ejection, including drying -box main part and the drying chamber of setting in drying -box main part inside, the left front upside of drying -box main part is provided with pressure gauge, the downside of pressure gauge is provided with control panel, the front side of drying chamber is provided with the box door, the upside of drying -box main part is provided with vacuum pump connecting mouth, drying -box main part is powered through connecting external power supply, still be provided with heating pipe in drying -chamber inner wall, the upper left and right two ends of drying chamber front and back two sides inside are provided with servo motor respectively, and the servo motor inside the four corners of drying chamber drives oval wheel to rotate, makes the supporting plate shake through connecting rod and the chain, and then makes the container that is equipped with the drying -in -waiting thing shake, and the drying -in -waiting thing can roll in the inside, like this can make each part of the drying -in -waiting thing can even heat, avoided the partial overheating or drying -uneven situation that can appear in traditional drying -box possibly, improved drying quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of vacuum dryers, specifically relating to a vacuum dryer that facilitates material discharge. Background Technology

[0002] The convenient vacuum dryer is a high-efficiency, sealed heat treatment device specifically designed for heat-sensitive materials. In a vacuum environment, it achieves rapid low-temperature drying by lowering the boiling point, preventing material oxidation or thermal decomposition. This equipment is widely used in the pharmaceutical, chemical, food, and electronics industries, and is particularly suitable for materials that are prone to agglomeration or have high viscosity. It features precise temperature control, energy efficiency, environmental friendliness, and ease of operation, making it an ideal choice for fine drying processes.

[0003] Existing vacuum dryers use a static drying method. In this mode, the material to be dried is placed in a fixed position, which can easily lead to uneven heating during the drying process. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum dryer that facilitates material discharge, thereby solving the problem that the existing vacuum dryers in the background art use a static drying method. In this drying mode, the material to be dried is placed in a fixed position, and uneven heating is likely to occur during the drying process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vacuum dryer for convenient material discharge, comprising a drying chamber body and a drying chamber disposed inside the drying chamber body;

[0006] A pressure gauge is installed on the upper left front side of the main body of the drying oven, a control panel is installed below the pressure gauge, and a door is installed on the front side of the drying chamber.

[0007] The upper side of the drying oven body is provided with a vacuum pump connection port, and the drying oven body is powered by connecting to an external power source;

[0008] Heating tubes are also installed in the inner wall of the drying chamber;

[0009] Servo motors are installed inside the upper left and right ends and the front and back sides of the drying chamber, respectively. An elliptical wheel is installed at the end of the servo motor, and a connecting rod is installed at one end of the elliptical wheel.

[0010] A tray is provided on the upper inner side of the drying chamber. Hanging chains are provided at the four corners of the tray and the connection points of the connecting rods. A rear plate is provided on the upper rear side of the tray. A threaded groove is provided in the middle of the front side of the tray. A sliding groove is provided on the upper side of the threaded groove. A sliding abutment is provided on the inner side of the threaded groove and the sliding groove. A pressing nut is provided in front of the sliding abutment in the threaded groove.

[0011] Preferably, the pressing nut is connected to the threaded groove via a threaded connection, and the pressing nut can move back and forth within the threaded groove via the thread.

[0012] Preferably, the sliding abutment is connected to the slide groove and the threaded groove by a snap-fit ​​connection, and the sliding abutment can move back and forth in the slide groove and the threaded groove.

[0013] Preferably, the pressing nut is connected to the sliding abutment plate in the threaded groove by a sleeve connection, and the pressing nut can rotate in front of the sliding abutment plate.

[0014] Preferably, the four servo motors are powered by connecting to the interior of the drying chamber. The drive shaft of the servo motor is connected to the elliptical wheel, and the center of gravity of the elliptical wheel does not coincide with the center of the drive shaft.

[0015] Preferably, the connecting rod is connected to the elliptical wheel via a threaded connection, and the two ends of the hanging chain are connected to the connecting rod and the support plate via a tie connection.

[0016] Preferably, the door is connected to the drying oven body via a hinge, and a sealing gasket is provided at the contact point between the door and the drying oven body for sealing.

[0017] Preferably, a handle is provided on the front left side of the door, and an observation window is provided on the inner middle side of the door.

[0018] Compared with the prior art, this utility model provides a vacuum dryer with convenient material discharge, which has the following beneficial effects:

[0019] 1. The servo motors inside the four corners of the drying chamber drive the elliptical wheels to rotate, which in turn causes the tray to shake through the connecting rods and hanging chains. This causes the container containing the material to be dried to shake, and the material inside to be dried to roll. This allows all parts of the material to be dried to be heated evenly, avoiding local overheating or uneven drying that may occur in traditional drying ovens, thus improving the drying quality.

[0020] 2. The fixing device on the pallet, consisting of a back plate, threaded groove, slide groove, sliding abutment, and pressing nut, can securely fix the container to the pallet. Users can rotate the pressing nut to move it back and forth within the threaded groove, according to the size and shape of the container. This causes the sliding abutment to move within the slide groove and threaded groove, thus flexibly pressing against the container and ensuring that it will not shift or fall due to shaking during the drying process, improving the stability and safety of the drying process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the dryer in this utility model.

[0022] Figure 2 This is a schematic diagram of the box door after it has been removed in this utility model.

[0023] Figure 3 In this utility model Figure 2 A structural diagram from the bottom view.

[0024] Figure 4 This is a schematic diagram of the structure of the four servo motors in this utility model.

[0025] Figure 5 In this utility model Figure 4 A magnified structural diagram of the inner circular region.

[0026] Figure 6 This is a schematic diagram of the connection between the servo motor and the elliptical wheel in this utility model.

[0027] In the diagram: 1. Drying oven body; 2. Vacuum pump connection port; 3. Pressure gauge; 4. Control panel; 5. Oven door; 6. Handle; 7. Observation window; 8. Drying chamber; 9. Pallet; 10. Rear plate; 11. Threaded groove; 12. Slide groove; 13. Sliding stop plate; 14. Elliptical wheel; 15. Hanging chain; 16. Press nut; 17. Servo motor; 18. Connecting rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides, for example Figure 1-6 The vacuum dryer shown includes a drying chamber body 1 and a drying chamber 8 disposed inside the drying chamber body 1.

[0030] The main body 1 of the drying oven is made of metal, which has good strength and sealing performance. The drying chamber 8 inside is used to place the material to be dried. A pressure gauge 3 is installed on the upper left front side of the main body 1 to display the vacuum level in the drying chamber 8. A control panel 4 is installed below the pressure gauge 3, which integrates parameter settings such as temperature, vacuum level, and time, as well as control functions such as equipment start and stop.

[0031] The front of the drying chamber 8 is connected to the door 5 via a hinge. A sealing gasket is installed at the joint between the door 5 and the main body 1 of the drying chamber to ensure the airtightness of the drying chamber 8. A vacuum pump connection port 2 is provided on the upper side of the main body 1 of the drying chamber for connecting an external vacuum pump. A control panel 4 is provided below the pressure gauge 3. The front of the drying chamber 8 is provided with the door 5, which is connected to the main body 1 of the drying chamber via a hinge. A sealing gasket is provided at the joint between the door 5 and the main body 1 of the drying chamber for sealing. A handle 6 is provided on the left front side of the door 5, and an observation window 7 is provided on the middle inner side of the door 5.

[0032] A vacuum pump connection port 2 is provided on the upper side of the drying oven body 1, and the drying oven body 1 is powered by connecting to an external power source;

[0033] Heating tubes are also installed in the inner wall of the drying chamber 8 to heat the interior of the drying chamber.

[0034] Optionally, the drying chamber body 1 is connected to a vacuum pump via a vacuum pump connection port 2. After the vacuum pump is started, the air inside the drying chamber 8 is extracted, creating a vacuum environment. Under vacuum conditions, the boiling point of moisture in the material decreases, enabling vaporization and evaporation at a lower temperature. Simultaneously, heating elements heat the drying chamber 8, providing heat to the material and accelerating moisture vaporization, thereby achieving material drying.

[0035] Servo motors 17 are installed inside the upper left and right ends and front and back sides of the drying chamber 8, respectively. An elliptical wheel 14 is installed at the end of the servo motor 17, and a connecting rod 18 is installed at one end of the elliptical wheel 14.

[0036] A tray 9 is provided on the upper inner side of the drying chamber 8. Hanging chains 15 are provided at the four corners of the tray 9 and the connection points of the connecting rod 18. A rear plate 10 is provided on the upper rear side of the tray 9. A threaded groove 11 is provided in the middle of the front side of the tray 9. A sliding groove 12 is provided on the upper side of the threaded groove 11. A sliding abutment 13 is provided on the inner side of the threaded groove 11 and the sliding groove 12. A pressing nut 16 is provided in front of the sliding abutment 13 in the threaded groove 11.

[0037] In this embodiment, the user can open the door 5, grasp the handle 6 and pull it outward to place the container containing the material stably on the tray 9, so that the back side of the container is tightly attached to the back plate 10, ensuring that the container is centered on the tray 9, which facilitates subsequent fixation and uniform heating.

[0038] Then, by rotating the pressing nut 16, it moves forward along the threaded groove 11. The pressing nut 16 drives the sliding abutment 13 to move forward synchronously within the sliding groove 12 and the threaded groove 11 until the sliding abutment 13 presses tightly against the front of the container, firmly fixing the container to the support plate 9. The moving distance of the pressing nut 16 is adjusted according to the size and shape of the container to ensure the fixing effect.

[0039] Next, close the chamber door 5 and set parameters such as drying temperature, vacuum level, and drying time through the control panel 4. Set an appropriate heating temperature according to the material characteristics, such as 30-60℃ for heat-sensitive materials; set the vacuum level according to the drying requirements, generally the higher the vacuum level, the faster the drying speed; determine the drying time according to the initial moisture content of the material and the drying process, referring to previous test data for setting.

[0040] Press the start button on the control panel 4, and the vacuum pump connected to the drying chamber body 1 through the vacuum pump connection port 2 will start working, drawing air out of the drying chamber 8 and gradually creating a vacuum environment in the drying chamber 8; at the same time, the heating tube will start heating the drying chamber 8. When the vacuum degree and temperature reach the set value, the four servo motors 17 will start.

[0041] The vacuum level displayed on the pressure gauge 3, the temperature fed back by the temperature sensor, and the drying time displayed on the timer are all monitored in real time via the control panel 4 to ensure that all parameters operate stably within the set range. If abnormal fluctuations occur, such as a drop in vacuum level, excessively high or low temperature, the cause should be analyzed and adjustments made promptly. The drying status of the material in the container on the tray 9 can be observed through the observation window 7 on the inner side of the chamber door 5 to check whether the material rolls evenly and whether there are any abnormal phenomena such as clumping or discoloration. If uneven drying of the material is found, the drying time can be extended appropriately or the speed and direction of rotation of the servo motor 17 can be adjusted.

[0042] When the drying time reaches the set value or the material has been observed and confirmed to be dried, press the stop button on the control panel 4, first turn off the heating tube, and let the material cool naturally in a vacuum environment for a period of time; then turn off the vacuum pump, and slowly open the vent valve on the main body 1 of the drying chamber, so that the pressure in the drying chamber 8 gradually returns to normal pressure.

[0043] After the drying process is complete, open the chamber door 5, turn the pressure nut 16 to move it backward, loosen the sliding stop plate 13 from pressing against the container, remove the fixed container, and carefully pour the dried material out of the container to complete the unloading process. After unloading, promptly clean the remaining material and debris from the pallet 9 and drying chamber 8.

[0044] Optionally, the user can press the start button on the control panel 4 to activate the vacuum pump, which extracts air from the drying chamber 8, while the heating element begins heating. Once the vacuum level and temperature in the drying chamber 8 reach the set values, the servo motor 17 starts, driving the elliptical wheel 14 to rotate. This, along with the connecting rod 18 and the hanging chain 15, causes the tray 9 to sway, causing the material inside the container to roll, thus achieving uniform heating and drying.

[0045] The pressing nut 16 is connected to the threaded groove 11 by a threaded connection, and the pressing nut 16 can move back and forth in the threaded groove 11 by the thread. The sliding plate 13 is connected to the slide groove 12 and the inside of the threaded groove 11 by a snap-fit ​​connection, and the sliding plate 13 can move back and forth in the slide groove 12 and the threaded groove 11. The pressing nut 16 is connected to the sliding plate 13 at the threaded groove 11 by a sleeve connection, and the pressing nut 16 can rotate in front of the sliding plate 13.

[0046] Preferably, the threaded groove 11 and the upper sliding groove 12 inside the middle of the front side of the tray 9 cooperate with each other. The sliding abutment 13 is connected to the sliding groove 12 and the threaded groove 11 through a snap-fit ​​connection. The pressing nut 16 is connected to the threaded groove 11 through a threaded connection and is also connected to the sliding abutment 13 at the threaded groove 11 through a nesting connection. When the pressing nut 16 is rotated, the pressing nut 16 moves back and forth along the threaded groove 11, causing the sliding abutment 13 to move synchronously within the sliding groove 12 and the threaded groove 11, thereby achieving pressure and fixation of the container placed on the tray 9 and preventing the container from shifting or tipping over during the shaking of the tray 9.

[0047] Four servo motors 17 are powered by connecting to the inside of the drying chamber body 1. The drive shaft of the servo motor 17 is connected to the elliptical wheel 14, and the center of gravity of the elliptical wheel 14 does not coincide with the center of the drive shaft, so as to ensure that eccentric motion is generated when rotating.

[0048] The connecting rod 18 is connected to the elliptical wheel 14 by a threaded connection, and the two ends of the hanging chain 15 are connected to the connecting rod 18 and the support plate 9 by a tie connection.

[0049] Preferably, after the four servo motors 17 inside the upper left and right ends and front and rear sides of the drying chamber 8 are started, their drive shafts drive the elliptical wheel 14 to rotate. Since the center of gravity of the elliptical wheel 14 does not coincide with the center of the drive shaft, eccentric motion occurs during rotation. The connecting rod 18 at one end of the elliptical wheel 14 oscillates back and forth with the rotation of the elliptical wheel 14, causing the pallet 9 to sway via the suspension chain 15. The swaying of the pallet 9 causes the container placed on it to sway accordingly, and the material to be dried inside the container rolls under the action of inertia and friction, thereby achieving uniform heating of the material and improving the drying effect and efficiency.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vacuum dryer for easy discharge, comprising a drying chamber body (1) and a drying chamber (8) disposed inside the drying chamber body (1); A pressure gauge (3) is provided on the upper left front side of the main body (1) of the drying oven, a control panel (4) is provided on the lower side of the pressure gauge (3), and a door (5) is provided on the front side of the drying chamber (8). The upper side of the drying chamber body (1) is provided with a vacuum pump connection port (2), and the drying chamber body (1) is powered by connecting to an external power source; Heating tubes are also provided in the inner wall of the drying chamber (8); Its features are: Servo motors (17) are respectively installed inside the upper left and right ends and the front and back sides of the drying chamber (8). An elliptical wheel (14) is installed at the end of the servo motor (17), and a connecting rod (18) is installed at one end of the elliptical wheel (14). A tray (9) is provided on the upper inner side of the drying chamber (8). A hanging chain (15) is provided at the four corners of the tray (9) and the connection point of the connecting rod (18). A rear plate (10) is provided on the upper rear side of the tray (9). A threaded groove (11) is provided in the middle of the front side of the tray (9). A sliding groove (12) is provided on the upper side of the threaded groove (11). A sliding abutment (13) is provided on the inner side of the threaded groove (11) and the sliding groove (12). A pressing nut (16) is provided in front of the sliding abutment (13) in the threaded groove (11).

2. The vacuum dryer for convenient material discharge according to claim 1, characterized in that: The pressing nut (16) is connected to the threaded groove (11) by a threaded connection, and the pressing nut (16) can move back and forth in the threaded groove (11) by the thread.

3. The vacuum dryer for convenient material discharge according to claim 2, characterized in that: The sliding plate (13) is connected to the slide groove (12) and the threaded groove (11) by a snap-fit ​​connection, and the sliding plate (13) can move back and forth in the slide groove (12) and the threaded groove (11).

4. The vacuum dryer for convenient material discharge according to claim 3, characterized in that: The pressing nut (16) is connected to the sliding abutment plate (13) in the threaded groove (11) by means of a nested connection, and the pressing nut (16) can rotate in front of the sliding abutment plate (13).

5. A vacuum dryer for convenient material discharge according to claim 4, characterized in that: The four servo motors (17) are powered by connecting to the inside of the drying chamber body (1). The drive shaft of the servo motor (17) is connected to the elliptical wheel (14), and the center of gravity of the elliptical wheel (14) does not coincide with the center of the drive shaft.

6. A vacuum dryer for convenient material discharge according to claim 5, characterized in that: The connecting rod (18) is connected to the elliptical wheel (14) by a threaded connection, and the two ends of the hanging chain (15) are connected to the connecting rod (18) and the support plate (9) by a tie connection.

7. A vacuum dryer for convenient material discharge according to claim 1, characterized in that: The door (5) is connected to the drying oven body (1) by a hinge, and a sealing gasket is provided at the joint between the door (5) and the drying oven body (1) for sealing treatment.

8. A vacuum dryer for convenient material discharge according to claim 7, characterized in that: A handle (6) is provided on the left front side of the box door (5), and an observation window (7) is provided on the middle inner side of the box door (5).

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