Vacuum drying box with heating circulation function

Abstract

The utility model belongs to the technical field of vacuum drying boxes, particularly relates to a vacuum drying box with a heating circulation function, and aims to solve the problems that in the prior art, material transferring is troublesome, heating circulation cannot be achieved, and constant temperature in the drying process is difficult to guarantee. Symmetrically distributed rails are arranged at the bottom of the box body, and driving wheels are slidably connected to the outer walls of the two rails. According to the automatic material transferring device, automatic material transferring of products is achieved, manpower is saved, the operation difficulty is lowered, under the condition that nitrogen is filled into the box body, the products can be prevented from being affected by oxidation, the product quality is improved, the interior of the box body is heated through the heater in the PLC, the axial flow fan is driven by the servo motor to work, and the production efficiency is improved. Cyclic heating of the product is achieved, the heating coverage area is wide, the constant-temperature heating effect is achieved, and the quality of the product after vacuum drying can be further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum drying box technical field especially relates to a vacuum drying box with heating circulation function. BACKGROUND

[0002] Vacuum drying box is a kind of equipment specially designed for drying heat-sensitive, easily decomposed and easily oxidized substances. It works in a closed vacuum environment, uses vacuum pump to pump and dehumidify, forms vacuum state in the working chamber, thereby reduces the boiling point of water and accelerates the drying speed.

[0003] Vacuum drying box is used for drying products, but the traditional vacuum drying box needs to be carried back and forth in the process of feeding and taking material, the back-and-forth process is very troublesome, and the equipment is only limited to vacuumizing and drying, cannot realize the characteristics of heating circulation, and it is also difficult to guarantee the constant temperature in the drying process, thereby affecting the drying quality of products. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a vacuum drying box with heating circulation function, which overcomes the deficiencies of the prior art, effectively solves the problems of troublesome material transfer, inability to realize heating circulation and difficulty in guaranteeing constant temperature in the drying process.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A vacuum drying box with heating circulation function, comprising a box body, the bottom of the box body is provided with symmetrically distributed tracks, and the outer walls of the two tracks are both slidingly connected with driving wheels, the top outer wall of the driving wheel is provided with a discharging table, and the shaft column of one of the driving wheels is fixedly connected with a driving motor through a shaft coupling;

[0007] The outer wall of one end of the nitrogen gas pipe is provided with a nitrogen tank, and the outer wall of the nitrogen gas pipe is provided with a solenoid valve one;

[0008] The outer wall of one end of the nitrogen gas pipe is provided with a nitrogen tank, and the outer wall of the nitrogen gas pipe is provided with a solenoid valve one;

[0009] Preferably, the outer wall of one side of the box body is provided with a vacuum pump, and the vacuum pump and the box body are fixedly connected with an air extraction pipe, and the outer wall of the air extraction pipe is provided with a pressure gauge.

[0010] Preferably, the outer wall of the air extraction pipe is provided with a solenoid valve two.

[0011] Preferably, an exhaust pipe is welded to the outer wall of the mixing pipe, and an electromagnetic valve is mounted to the outer wall of the exhaust pipe.

[0012] Preferably, a PLC controller is fixedly connected to one side of the outer wall of the box by screws, and the PLC controller is connected to the driving motor, the air blower, the electromagnetic valve I, the servo motor, the vacuum pump, the electromagnetic valve II and the electromagnetic valve III through signal lines, and a heater is arranged in the PLC controller.

[0013] Preferably, symmetrically distributed sealing doors are hingedly connected to the other side of the outer wall of the box, and handles are mounted to the outer walls of the sealing doors.

[0014] Preferably, an observation window is formed in the outer wall of one of the sealing doors.

[0015] Preferably, a notch is formed in the bottom of one side of the outer wall of the discharging table, and the size of the notch is matched with the size of the track.

[0016] The vacuum drying box with the heating and circulating function has the advantages that:

[0017] 1. The vacuum drying box with the heating and circulating function can place products outside the box on the discharging table, and the discharging table can be transferred to the inside of the box by driving one of the driving wheels to rotate, so that the automatic material transfer of the products is realized, the manpower is saved, and the operation difficulty is reduced.

[0018] 2. After the inside of the box is vacuumized, the nitrogen in the nitrogen tank can be introduced into the inside of the box through the air blower along the nitrogen pipe, so that the products can be prevented from being oxidized, and the quality of the products is improved.

[0019] 3. The inside of the box is heated by the heater in the PLC controller, the shaft flow fan is driven to work by the servo motor, the nitrogen in the inside of the box can be sucked into the shaft flow fan and discharged through the exhaust bin under heating, and then is sucked into the shaft flow fan again, so that the products are heated in a circulating manner, the heating coverage is wide, the constant temperature heating effect is achieved, and the quality of the products after vacuum drying is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model provides a kind of vacuum drying box with the heating and circulating function of overall structure three-dimensional schematic Figure One ;

[0021] Figure 2 The utility model provides a kind of vacuum drying box with the heating and circulating function of overall structure three-dimensional schematic Figure Two;

[0022] Figure 3 The structure schematic view of the discharging table of the vacuum drying box with heating and circulating functions is turned into the box body interior;

[0023] Figure 4 The connection structure schematic view of the discharging table of the vacuum drying box with heating and circulating functions is turned into the box body interior;

[0024] Figure 5 The internal structure schematic view of the box body of the vacuum drying box with heating and circulating functions is turned into the box body interior.

[0025] In the figure: 1, box body; 2, track; 3, drive wheel; 4, discharging table; 5, drive motor; 6, air blower; 7, nitrogen pipe; 8, nitrogen tank; 9, electromagnetic valve one; 10, servo motor; 11, axial flow fan; 12, air inlet bin; 13, air outlet bin; 14, vacuum pump; 15, air suction pipe; 16, pressure gauge; 17, mixing pipe; 18, electromagnetic valve two; 19, exhaust pipe; 20, electromagnetic valve three; 21, PLC controller; 22, sealing door; 23, handle; 24, observation window. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0027] Embodiment one, refer to Figures 3-4 A vacuum drying box with heating and circulating functions, comprising a box body 1, the bottom of the box body 1 is provided with symmetrically distributed tracks 2, and the outer walls of the two tracks 2 are both slidingly connected with drive wheels 3, the top outer wall of the drive wheel 3 is installed with a discharging table 4, and the shaft column of one of the drive wheels 3 is fixedly connected with a drive motor 5 through a shaft coupling.

[0028] In the embodiment, the products can be placed on the discharging table 4 outside the box body 1, and the automatic material transfer of the products can be realized by driving one of the drive wheels 3 to rotate through the drive motor 5, so that the labor is saved and the operation difficulty is reduced.

[0029] Embodiment two, refer to Figure 2 A vacuum drying box with heating and circulating functions, one side outer wall of the box body 1 is provided with an air blower 6, and the air blower 6 and the box body 1 are fixedly connected with a nitrogen pipe 7, one end of the outer wall of the nitrogen pipe 7 is installed with a nitrogen tank 8, and the outer wall of the nitrogen pipe 7 is installed with an electromagnetic valve one 9.

[0030] In this embodiment, after the inside of the box body 1 is vacuumized, nitrogen in the nitrogen tank 8 can be introduced into the inside of the box body 1 through the air blower 6 along the nitrogen pipe 7, and in the case of filling nitrogen into the inside of the box body 1, the product can be prevented from being oxidized, and the quality of the product can be improved.

[0031] Embodiment three, refer to Figure 5 A vacuum drying box with heating circulation function, a servo motor 10 is fixedly connected to the top outer wall of the box body 1 through screws, and the output shaft of the servo motor 10 is fixedly connected with an axial flow fan 11, and an air inlet bin 12 is welded on one side of the axial flow fan 11, and an air outlet bin 13 is installed on the inner wall of the box body 1 at one end of the outer wall of the air inlet bin 12.

[0032] In this embodiment, the inside of the box body 1 is heated by the heater inside the PLC controller 21, the nitrogen in the inside of the box body 1 can be sucked into the axial flow fan 11 under heating, and then discharged through the air outlet bin 13, and then sucked into the axial flow fan 11 again, realizing the circulation heating of the product, the heating coverage area is wide, and the effect of constant temperature heating is achieved, which can further improve the quality of the product after vacuum drying.

[0033] Refer to Figure 2 A vacuum pump 14 is arranged on one side of the outer wall of the box body 1, and a suction pipe 15 is fixedly connected between the vacuum pump 14 and the box body 1, and a pressure gauge 16 is installed on the outer wall of the suction pipe 15.

[0034] Refer to Figure 2 The outlet of the vacuum pump 14 and the nitrogen tank 8 are fixedly connected with a mixing pipe 17, and the electromagnetic valve two 18 is installed on the outer wall of the mixing pipe 17.

[0035] Refer to Figure 2 An exhaust pipe 19 is welded on the outer wall of the mixing pipe 17, and the electromagnetic valve three 20 is installed on the outer wall of the exhaust pipe 19.

[0036] Refer to Figure 2 And Figure 4 A PLC controller 21 is fixedly connected to one side of the outer wall of the box body 1 through screws, and the PLC controller 21 is connected with the driving motor 5, the air blower 6, the electromagnetic valve one 9, the servo motor 10, the vacuum pump 14, the electromagnetic valve two 18 and the electromagnetic valve three 20 through signal lines, and the inside of the PLC controller 21 is provided with a heater.

[0037] Refer to Figure 1 The other side of the outer wall of the box body 1 is hinged with symmetrically distributed sealing doors 22, and handles 23 are installed on the outer wall of the sealing doors 22.

[0038] Refer to Figure 1 An observation window 24 is formed on the outer wall of one of the sealing doors 22.

[0039] Referring to Figure 4 The bottom of the outer wall of one side of the discharging table 4 is provided with a notch, and the size of the notch is matched with the size of the track 2.

[0040] Working principle: first, the product is placed on the discharging table 4, and the driving motor 5 drives one of the driving wheels 3 to rotate to control the discharging table 4 to move to the inside of the box 1, then the sealing door 22 is closed, the vacuum pump 14 is used to suck the air in the box 1, then the nitrogen gas in the nitrogen tank 8 is filled into the box 1 through the air blower 6, then the heater in the PLC controller 21 is used to heat the inside of the box 1, and the shaft flow fan 11 is driven by the servo motor 10 to work, so that the nitrogen gas in the box 1 is sucked into the shaft flow fan 11 under the condition of heating, and is discharged through the exhaust bin 13, then is sucked into the shaft flow fan 11 again, to realize the circulation heating of the product.

[0041] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A vacuum drying oven having a heating cycle function, comprising a cabinet (1), characterized in that, The bottom of the box (1) is provided with symmetrically distributed tracks (2), and the outer walls of the two tracks (2) are slidably connected with driving wheels (3), the top outer wall of the driving wheel (3) is provided with a discharging table (4), and the shaft column of one of the driving wheels (3) is fixedly connected with a driving motor (5) through a shaft coupling. One side of the outer wall of the box (1) is provided with a blower (6), and the blower (6) and the box (1) are fixedly connected with a nitrogen pipe (7), one end of the outer wall of the nitrogen pipe (7) is provided with a nitrogen tank (8), and the outer wall of the nitrogen pipe (7) is provided with a solenoid valve (9). The top outer wall of the box (1) is fixedly connected with a servo motor (10) through screws, and the output shaft of the servo motor (10) is fixedly connected with an axial flow fan (11), one side of the axial flow fan (11) is welded with an air inlet bin (12), and one end of the outer wall of the air inlet bin (12) is installed on the inner wall of the box (1) The outer wall of one end of the air inlet bin (12) is provided with an air outlet bin (13).

2. The vacuum drying oven with a heating cycle function according to claim 1, characterized in that, One side of the outer wall of the box (1) is provided with a vacuum pump (14), and the vacuum pump (14) and the box (1) are fixedly connected with an exhaust pipe (15), and the outer wall of the exhaust pipe (15) is provided with a pressure gauge (16).

3. The vacuum drying oven with a heating cycle function according to claim 2, characterized in that, The outlet of the vacuum pump (14) and the nitrogen tank (8) are fixedly connected with a mixing pipe (17), and the outer wall of the mixing pipe (17) is provided with a solenoid valve (18).

4. The vacuum drying oven with a heating cycle function according to claim 3, characterized in that, The outer wall of the mixing pipe (17) is welded with an exhaust pipe (19), and the outer wall of the exhaust pipe (19) is provided with a solenoid valve (20).

5. The vacuum drying oven with a heating cycle function according to claim 1, characterized in that, One side of the outer wall of the box (1) is fixedly connected with a PLC controller (21) through screws, and the PLC controller (21) is connected with the driving motor (5), the blower (6), the solenoid valve (9), the servo motor (10), the vacuum pump (14), the solenoid valve (18) and the solenoid valve (20) through signal lines, and the inside of the PLC controller (21) is provided with a heater.

6. The vacuum drying oven with a heating cycle function according to claim 1, characterized in that, The other side of the outer wall of the box (1) is hingedly connected with symmetrically distributed sealing doors (22), and the outer wall of the sealing door (22) is provided with a handle (23).

7. The vacuum drying oven with a heating cycle function according to claim 6, characterized in that, One of the outer walls of the sealing door (22) is provided with an observation window (24).

8. The vacuum drying oven with a heating cycle function according to claim 1, characterized in that, The bottom of one side of the outer wall of the discharging table (4) is provided with a notch, and the size of the notch is matched with the size of the track (2). The bottom of one side of the outer wall of the discharging table (4) is provided with a notch, and the size of the notch is matched with the size of the track (2).

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