Vacuum drying oven capable of being heated uniformly

Abstract

The utility model relates to the field and discloses a uniformly heated vacuum drying oven which comprises a vacuum oven body and an oven door rotationally arranged on the front face of the vacuum oven body, a handle is installed on the oven door, a vertical partition plate and two transverse plates are fixedly installed in an inner cavity of the vacuum oven body, and the two transverse plates are perpendicularly installed on one side of the vertical partition plate. Material discs and a net cover used for covering materials are rotationally arranged above the transverse plate, a driving device used for driving the two material discs to rotate is arranged on the other side of the vertical partition plate, and the driving device comprises a motor installed at the bottom of an inner cavity of the vacuum box body. A rotating rod located below the transverse plate and parallel to the transverse plate is rotationally arranged on the vertical partition plate, a driving bevel gear is installed at the right end of the rotating rod, a driven rod fixedly connected with the bottom of the material disc is rotationally arranged on the transverse plate, and a driven bevel gear meshed with the driving bevel gear is installed at the lower end of the driven rod. The vacuum drying device has the following advantages and effects that the vacuum pumping and dehumidification can be realized, so that the drying is more ideal.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum drying, in particular to a vacuum drying box with uniform heating. Background Art

[0002] A drying oven is a commonly used instrument and equipment, which is mainly used to dry samples and can also provide the temperature environment required for the experiment. Drying ovens are used in various industries such as chemical, electronics, casting, automobile, food, machinery, etc. There are many series of drying ovens, such as electric blast drying ovens, blast drying ovens, electric blast ovens, hot air circulation ovens, and high temperature drying ovens. When working, they either use high temperature, hot air, or high temperature plus vacuum to dry the items being dried.

[0003] The existing drying oven has a relatively simple structure and does not have a vacuum effect in terms of function. It is also unable to remove the moisture inside. During drying, it is inconvenient to control the rotation of the material, resulting in uneven heating and unsatisfactory drying effect. Therefore, it is necessary to propose a vacuum drying oven with uniform heating to solve this problem. Utility Model Content

[0004] The utility model aims to provide a vacuum drying box with uniform heating, which has the functions of vacuuming and dehumidifying, so as to achieve a more ideal drying effect.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions: a vacuum drying oven with uniform heating, comprising a vacuum oven body and a door rotatably arranged on the front of the vacuum oven body, the door being provided with a handle, a vertical partition and two horizontal plates vertically arranged on one side of the vertical partition being fixedly arranged in the inner cavity of the vacuum oven body, a material tray and a mesh cover for covering the material being rotatably arranged above the horizontal plate, a driving device for driving the two material trays to rotate being arranged on the other side of the vertical partition, the driving device comprising a drive mounted in the inner cavity of the vacuum oven body The motor at the bottom, a rotating rod located below and parallel to the horizontal plate is rotatably provided on the vertical partition, a main bevel gear is installed on the right end of the rotating rod, a driven rod fixedly connected to the bottom of the material tray is rotatably provided on the horizontal plate, a driven bevel gear meshing with the main bevel gear is installed on the lower end of the driven rod, the output end of the motor is connected to the bottom rotating rod, and a synchronous belt is connected for transmission between the two groups of the rotating rods, two heaters are installed on the inner wall of the vacuum box body, and a vacuum pump for evacuating the inside of the vacuum box body is provided on the left side of the outside, and the vacuum pump is connected to the vacuum box body through a pipeline.

[0006] By adopting the above technical solution, the material is placed on two material trays, which are restricted by a mesh cover, and the interior is evacuated by a vacuum pump. The internal heater is turned on to heat and dry the material, and at the same time, the motor is controlled to rotate the two rotating rods driven by the synchronous belt, so that the main bevel gear drives the driven bevel gear to rotate through meshing, and the driven rod drives the material tray to rotate on the horizontal plate, thereby controlling the rotation of the material, making the material drying more uniform and achieving a better drying effect.

[0007] The utility model is further configured as follows: a temperature and humidity sensor is installed on the vertical partition between the two horizontal plates, a dehumidification device is installed on the upper end of the vacuum box body, and four symmetrical supporting wheels are installed around the bottom of the material tray and are close to the bottom of the horizontal plate.

[0008] By adopting the above technical solution, the temperature and humidity inside the vacuum box body are detected by the temperature and humidity sensor. When the humidity is high, the moisture is extracted by the dehumidification device, and then it is vacuumed again with the help of the vacuum pump, so that the drying of the material is not affected by moisture, thereby improving the drying effect.

[0009] The utility model is further configured as follows: the dehumidification device includes a dehumidification chamber installed on the top of the vacuum box body, an exhaust fan and a filter plate are arranged in the dehumidification chamber, a dehumidification port is arranged at the upper end, and a valve is sealed and connected to the dehumidification port.

[0010] By adopting the above technical solution, the exhaust fan and the valve are opened, moisture enters the dehumidification chamber from the vacuum box body and is discharged from the dehumidification port. The setting of the filter plate prevents dust and impurities from flowing back into the vacuum box body, so that the material is not affected and its drying effect is improved.

[0011] The utility model is further configured as follows: the material tray is divided into three identical material placement intervals by three connecting rods, and the material is supported by a mesh plate in the material placement interval; the mesh cover is square-shaped, and one end is hinged to the material tray, and the other end is provided with a locking device for flipping and fixing the mesh cover.

[0012] By adopting the above technical solution, after the material is placed on the material tray, the mesh cover is rotated to hold the material, and the mesh cover is fixed by a locking device to prevent the material from being separated from the material tray during rotation. A mesh plate is used at the bottom of the material tray to support the material, so that the moisture in the material can be more easily dried.

[0013] The utility model is further configured as follows: the locking device includes a fixing frame installed on one side of the mesh cover and two fixing blocks installed on the material tray, the two fixing blocks are symmetrically arranged on the front and rear sides of the fixing frame, a limiting rod is installed in the fixing frame, the outer side of the limiting rod is sleeved with two springs and sliding blocks for respectively squeezing the two springs, and four insertion rods inserted into the fixing blocks are vertically installed at the opposite ends of the two sliding blocks.

[0014] By adopting the above technical solution, after the mesh cover is buckled and turned, by pressing the two sliding blocks, the insertion rods on both sides are embedded in the fixed blocks under the expansion and contraction rebound of the springs, thereby fixing the mesh cover on the material tray and limiting the material position to prevent the material from slipping off the material tray when rotating.

[0015] The utility model is further configured as follows: an observation window is also provided on the box door, and a controller and a vacuum pressure gauge are provided on the left side of the box door of the vacuum box body.

[0016] By adopting the above technical solution, the drying condition of the internal material can be conveniently observed through the observation window, the controller is used to control the equipment, and the internal vacuum pressure value is monitored by the vacuum pressure gauge, so that the drying effect of the material is better.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model, through the arrangement of the vacuum pump and the driving device, firstly, the vacuum pump performs vacuum treatment on the interior, places the material to be dried on the material tray, and heats the interior by the heater, and at the same time controls the motor, and drives the two rotating rods to rotate under the drive of the synchronous belt, so that the main bevel gear drives the driven bevel gear to rotate through meshing, and the driven rod drives the material tray to rotate on the horizontal plate, thereby controlling the rotation of the material, making the material drying more uniform, and the drying effect is better.

[0019] 2. The utility model, through the setting of the locking device, makes the mesh cover turn and buckle on the upper end of the material tray, presses the two sliding blocks, and under the expansion and contraction rebound of the spring, the insertion rods on both sides are embedded in the fixed blocks, thereby fixing the mesh cover on the material tray, limiting the material to prevent the material from falling during rotation, and detecting the temperature and humidity inside the vacuum box body through the temperature and humidity sensor. When the humidity is high, the moisture is extracted through the dehumidification device, and then it is vacuumized again with the help of the vacuum pump, so that the drying of the material is not affected by moisture, and the drying effect is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The utility model is a whole structure diagram of a vacuum drying oven with uniform heating.

[0022] Figure 2 The utility model is a diagram showing the internal structure of a vacuum drying oven with uniform heating.

[0023] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0024] Figure 4 This utility model Figure 1 Structural diagram of the dehumidification device.

[0025] Figure 5 This utility model Figure 1 The overall structure diagram of the medium material tray.

[0026] Figure 6 This utility model Figure 5 Structural diagram of the middle locking device.

[0027] In the figure, 1. vacuum box body; 2. box door; 21. handle; 22. observation window; 3. vertical partition; 4. horizontal plate; 5. material tray; 51. mesh cover; 52. locking device; 521. fixed frame; 522. limit rod; 523. fixed block; 524. spring; 525. sliding block; 526. plug rod; 6. driving device; 61. motor; 62. rotating rod; 63. main bevel gear; 64. driven rod; 65. slave bevel gear; 66. synchronous belt; 7. heater; 8. vacuum pump; 9. temperature and humidity sensor; 10. dehumidification device; 101. dehumidification chamber; 102. exhaust fan; 103. filter plate; 104. dehumidification port; 105. valve; 11. supporting wheel. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figures 1 to 6As shown, a vacuum drying oven with uniform heating comprises a vacuum box body 1 and a box door 2 rotatably arranged on the front of the vacuum box body 1, a handle 21 is installed on the box door 2, a vertical partition 3 and two horizontal plates 4 vertically installed on one side of the vertical partition 3 are fixedly installed in the inner cavity of the vacuum box body 1, a material tray 5 and a mesh cover 51 for covering the material are rotatably arranged above the horizontal plate 4, a driving device 6 for driving the two material trays 5 to rotate is arranged on the other side of the vertical partition 3, and the driving device 6 comprises a motor 61 installed at the bottom of the inner cavity of the vacuum box body 1, and a rotating device 6 is arranged on the vertical partition 3. A rotating rod 62 is arranged below the horizontal plate 4 and parallel thereto, a main bevel gear 63 is installed at the right end of the rotating rod 62, a driven rod 64 fixedly connected to the bottom of the material tray 5 is rotatably arranged on the horizontal plate 4, a driven bevel gear 65 meshing with the main bevel gear 63 is installed at the lower end of the driven rod 64, an output end of the motor 61 is connected to the bottom rotating rod 62, a synchronous belt 66 is connected for transmission between the two groups of rotating rods 62, two heaters 7 are installed on the inner wall of the vacuum box body 1, a vacuum pump 8 for evacuating the inside of the vacuum box body 1 is arranged on the left side of the outside, and the vacuum pump 8 is connected to the vacuum box body 1 through a pipeline.

[0030] Furthermore, a temperature and humidity sensor 9 is installed on the vertical partition 3 between the two horizontal plates 4, a dehumidification device 10 is installed on the upper end of the vacuum box body 1, and four symmetrical supporting wheels 11 are installed around the bottom of the material tray 5 and are close to the bottom of the horizontal plate 4.

[0031] Furthermore, the dehumidification device 10 includes a dehumidification chamber 101 installed on the top of the vacuum box body 1, and an exhaust fan 102 and a filter plate 103 are arranged in the dehumidification chamber 101. A dehumidification port 104 is arranged at the upper end, and a valve 105 is sealed and connected to the dehumidification port 104.

[0032] Furthermore, the material tray 5 is divided into three identical material placement intervals by three connecting rods, and the material is supported by the mesh plate in the material placement interval. The mesh cover 51 is square-shaped, and one end is hinged to the material tray 5, and the other end is provided with a locking device 52 for flipping and fixing the mesh cover 51.

[0033] Furthermore, the locking device 52 includes a fixing frame 521 installed on one side of the mesh cover 51 and two fixing blocks 523 installed on the material tray 5. The two fixing blocks 523 are symmetrically arranged on the front and rear sides of the fixing frame 521. A limiting rod 522 is installed in the fixing frame 521. The outer side of the limiting rod 522 is sleeved with two springs 524 and sliding blocks 525 for respectively squeezing the two springs 524. Four plug rods 526 inserted into the fixing block 523 are vertically installed at the opposite ends of the two sliding blocks 525.

[0034] Furthermore, an observation window 22 is provided on the box door 2 , and a controller and a vacuum pressure gauge are provided on the left side of the box door 2 on the vacuum box body 1 .

[0035] The working principle of the utility model is as follows: the box door 2 is opened, the material to be dried is placed on the material tray 5, the mesh cover 51 is rotated to hold the material, and the two sliding blocks 525 are pressed. Under the expansion and contraction of the spring 524, the insertion rods 526 on both sides are embedded in the fixed block 523, so that the mesh cover 51 is fixed on the material tray 5, the material is limited, and after the box door 2 is closed, the vacuum pump 8 is used to evacuate the interior, and the internal heater 7 is turned on to heat and dry the material. At the same time, the motor 61 is controlled to rotate the two rotating rods 62 under the drive of the synchronous belt 66, so that the main bevel gear 63 passes through The meshing drives the bevel gear 65 to rotate, and the driven rod 64 drives the material plate 5 to rotate on the horizontal plate 4, thereby controlling the rotation of the material and making the material drying more uniform. The temperature and humidity sensor 9 detects the temperature and humidity inside the vacuum box body 1. When the humidity is high, the exhaust fan 102 and the valve 105 are opened, and moisture enters the dehumidification bin 101 from the vacuum box body 1 and is discharged from the dehumidification port 104. The filter plate 103 is set to prevent dust and impurities from flowing back into the vacuum box body 1, and then it is evacuated again in cooperation with the vacuum pump 8, so that the drying of the material is not affected by moisture, further improving the drying effect.

Claims

1. A vacuum drying oven with uniform heating, comprising a vacuum drying oven body (1) and a door (2) rotatably arranged on the front of the vacuum drying oven body (1), wherein a handle (21) is installed on the door (2), characterized in that: The inner cavity of the vacuum box body (1) is fixedly provided with a vertical partition (3) and two horizontal plates (4) vertically installed on one side of the vertical partition (3); a material tray (5) and a mesh cover (51) for covering the material are rotatably provided above the horizontal plate (4); a driving device (6) for driving the two material trays (5) to rotate is provided on the other side of the vertical partition (3); the driving device (6) comprises a motor (1) installed at the bottom of the inner cavity of the vacuum box body (1) 61), a rotating rod (62) located below and parallel to the horizontal plate (4) is rotatably provided on the vertical partition (3), a main bevel gear (63) is installed at the right end of the rotating rod (62), a driven rod (64) fixedly connected to the bottom of the material tray (5) is rotatably provided on the horizontal plate (4), a driven bevel gear (65) meshing with the main bevel gear (63) is installed at the lower end of the driven rod (64), and the output end of the motor (61) is connected to the bottom rotating rod (62), A synchronous belt (66) is connected between the two groups of rotating rods (62). Two heaters (7) are installed on the inner wall of the vacuum box body (1). A vacuum pump (8) for evacuating the inside of the vacuum box body (1) is arranged on the left side of the outside. The vacuum pump (8) is connected to the vacuum box body (1) through a pipeline. A temperature and humidity sensor (9) is installed on the vertical partition (3) between the two horizontal plates (4). A dehumidification device (10) is installed on the upper end of the vacuum box body (1). Four supporting wheels (11) are installed symmetrically around the bottom of the material tray (5) and are close to the bottom of the horizontal plate (4). The dehumidification device (10) includes a dehumidification bin (101) installed on the top of the vacuum box body (1). An exhaust fan (102) and a filter plate (103) are arranged in the dehumidification bin (101). A dehumidification port (104) is arranged on the upper end. A valve (105) is sealed on the dehumidification port (104).

2. The vacuum drying oven with uniform heating according to claim 1, characterized in that: The material tray (5) is divided into three identical material placement sections by three connecting rods, and the materials are supported by mesh plates in the material placement sections. The mesh cover (51) is square-shaped, and one end is hinged to the material tray (5), and the other end is provided with a locking device (52) for flipping and fixing the mesh cover (51).

3. The uniformly heated vacuum drying oven according to claim 2, characterized in that: The locking device (52) comprises a fixing frame (521) installed on one side of the mesh cover (51) and two fixing blocks (523) installed on the material tray (5); the two fixing blocks (523) are symmetrically arranged on the front and rear sides of the fixing frame (521); a limiting rod (522) is installed in the fixing frame (521); two springs (524) and sliding blocks (525) for respectively pressing the two springs (524) are sleeved on the outer side of the limiting rod (522); four insertion rods (526) inserted into the fixing blocks (523) are vertically installed at the opposite ends of the two sliding blocks (525).

4. The vacuum drying oven with uniform heating according to claim 1, characterized in that: The box door (2) is also provided with an observation window (22), and the vacuum box body (1) is provided with a controller and a vacuum pressure gauge on the left side of the box door (2).

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