Hot air circulation drying oven with automatic ash removal mechanism

Abstract

The utility model discloses a hot air circulating oven with an automatic ash cleaning mechanism, which relates to the technical field of hot air circulating ovens and comprises an oven body, a first air blower is mounted on the right side of the oven body, and a first air outlet pipe is mounted below the first air blower. The hot air circulation drying oven with the automatic ash removal mechanism is provided with the filter screen, the filter screen filters air entering the drying oven body, when dust in the drying oven needs to be removed, a first servo motor and a second air blower are started, an output shaft of the first servo motor drives a reciprocating lead screw to rotate, and a sliding block moves up and down; and then a brush assembly below is driven to move up and down, so that the brush assembly brushes the surface of the filter screen back and forth, dust on the filter screen is brushed off, external air enters a second air blower through a second air inlet pipe and then is fed into the drying oven body through a second air outlet pipe, and then the filter screen is reversely washed through an air outlet in the heating box. Therefore, the cleaning efficiency of the filter screen is improved.

Description

Technical Field

[0001] This utility model relates to the field of hot air circulating oven technology, specifically a hot air circulating oven with an automatic dust removal mechanism. Background Technology

[0002] In modern industrial production, hot air circulating ovens are widely used as important drying and curing equipment in many fields such as food, pharmaceuticals, chemicals, and electronics. Through their hot air circulation system, they ensure uniform temperature distribution within the oven, efficiently heating materials to meet the temperature and drying requirements of different production processes.

[0003] However, ordinary hot air circulating ovens face a rather troublesome problem during long-term operation: dust accumulation. Because the oven interior is a high-temperature environment with continuous air circulation, dust particles from the surrounding environment are easily drawn into the oven and gradually accumulate on the inner walls, heating elements, air ducts, and material surfaces. Over time, the dust accumulation becomes increasingly severe.

[0004] For example, Chinese utility model patent application number 202121341879.8 discloses a high-efficiency hot air circulating drying oven with air purification function, which has the advantages of easy placement of drying items, suitability for various sizes of items, ability to refresh the air inside the oven at any time, and a high degree of automation. However, its device still has certain shortcomings;

[0005] Dust can enter the oven through the blower, causing dust to accumulate inside. This dust accumulation not only affects the heat transfer efficiency inside the oven, slowing down the heating speed and increasing energy consumption, but also has an adverse effect on product quality.

[0006] Therefore, we propose a hot air circulating oven with an automatic dust removal mechanism to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a hot air circulating oven with an automatic dust removal mechanism to solve the problem mentioned in the background art that dust enters the oven through the blower, causing dust accumulation inside the oven. This dust accumulation not only affects the heat transfer efficiency inside the oven, slowing down the heating speed and increasing energy consumption, but also has an adverse effect on product quality.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a hot air circulating oven with an automatic dust removal mechanism, comprising an oven body, a first blower installed on the right side of the oven body, a first air outlet pipe installed below the first blower, a heating box installed on the right side inside the oven body, a heating component installed on the top inside the heating box, a filter screen installed inside the heating box, and an air outlet opened on the left side of the heating box;

[0009] A first servo motor is installed above the oven body, and a reciprocating lead screw is installed below the first servo motor via an output shaft. A slider is installed on the reciprocating lead screw, and a brush assembly is installed below the slider. A ventilation pipe is installed above the oven body, and a second blower is installed on the left side of the oven body.

[0010] The oven body is equipped with a placement rack inside, and a connecting block is installed on the rear side of the placement rack. A groove is opened on the rear side of the connecting block. A second servo motor is installed on the rear side of the oven body, and a connecting strip is installed on the front end of the second servo motor through the output shaft. A movable block is installed on the connecting strip.

[0011] Preferably, a first air inlet pipe is installed on the right side of the first blower, and a first air outlet pipe is connected to the interior of the heating box.

[0012] With the above structural design, when the first blower is started, outside air enters through the first air inlet pipe and is sent into the heating chamber through the first air outlet pipe. The heating components inside the heating chamber start working, heating the air. The heated air is then blown out through the air outlet and enters the main body of the drying chamber to dry the material. The hot air circulates within the main body of the drying chamber, achieving efficient drying of the material.

[0013] Preferably, a dust collection tray is installed inside the heating box, and the dust collection tray is slidably connected to the heating box.

[0014] With the above structural design, the dust brushed off the filter screen will be deposited in the dust collection tray inside the heating box. After cleaning and waiting for the dust to settle, the dust collection tray can be pulled out to remove the dust.

[0015] Preferably, the slider is slidably connected to the reciprocating lead screw, and a groove is provided on the inner wall of the oven body, with the slider slidably connected to the groove.

[0016] With the above structural design, when it is necessary to clean the dust inside the oven, the first servo motor is activated, and the output shaft of the first servo motor drives the reciprocating lead screw to rotate. Since the slider is slidably connected to the reciprocating lead screw and also slidably connected to the slide groove opened in the inner wall of the oven body, the slider will make reciprocating linear motion along the slide groove under the drive of the reciprocating lead screw. The brush assembly installed below the slider abuts against the filter screen and is slidably connected to the heating box. Therefore, the brush assembly will brush back and forth on the surface of the filter screen as the slider moves, brushing off the dust on the filter screen.

[0017] Preferably, the brush assembly abuts against the filter screen, and the brush assembly is slidably connected to the heating box.

[0018] With the above structural design, the brush assembly can clean the dust from the filter screen when it moves up and down under force.

[0019] Preferably, a second air inlet pipe is installed on the left side of the second blower, and a second air outlet pipe is installed above the second blower. The second air outlet pipe is connected to the interior of the oven body and corresponds to the air outlet on the heating box. A control valve is installed on the second air outlet pipe.

[0020] With the above structural design, when cleaning dust, the second blower is started at the same time. Outside air enters the second blower through the second air inlet pipe, and then is sent into the oven body through the second air outlet pipe. Then, the filter screen is backwashed through the air outlet on the heating box, thereby improving the cleaning efficiency of the filter screen.

[0021] Preferably, fixing blocks are installed on both the left and right sides of the placement rack, and guide rods are installed on both the left and right sides inside the oven body. The fixing blocks are slidably connected to the guide rods, and the movable blocks are engaged in the grooves on the connecting blocks.

[0022] With the above structural design, starting the second servo motor causes its output shaft to rotate the connecting bar, and the movable block on the connecting bar rotates accordingly. Since the movable block engages in the groove on the connecting block, the fixed blocks on the left and right sides of the placement rack are slidably connected to the guide rods on the left and right sides inside the oven body. The rotation of the movable block causes the connecting block and the placement rack to move up and down along the guide rods, thereby moving the placement rack up and down within the oven body and improving the drying efficiency of the items inside the oven body.

[0023] Compared with the prior art, the beneficial effects of this utility model are: the hot air circulating oven with an automatic dust removal mechanism:

[0024] 1. A filter screen is installed to filter the air entering the oven body. When it is necessary to clean the dust inside the oven, the first servo motor and the second blower are started. The output shaft of the first servo motor drives the reciprocating screw to rotate. The slider will move back and forth in a straight line along the slide groove under the drive of the reciprocating screw, and then drive the brush assembly below to move up and down, so that it brushes back and forth on the surface of the filter screen to brush off the dust. Outside air enters the second blower through the second air inlet pipe, and then is sent into the oven body through the second air outlet pipe. Then, it washes the filter screen in the opposite direction through the air outlet on the heating box, thereby improving the cleaning efficiency of the filter screen.

[0025] 2. A connecting block is provided. When the second servo motor is started, the output shaft of the second servo motor drives the connecting bar to rotate, and the movable block on the connecting bar rotates accordingly. Since the movable block is engaged in the groove on the connecting block, the fixed blocks on the left and right sides of the placement rack are slidably connected to the guide rods on the left and right sides inside the oven body. The rotation of the movable block will drive the connecting block and the placement rack to move up and down along the guide rods, thereby moving the placement rack up and down inside the oven body and improving the drying efficiency of the items inside the oven body. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the main cross-section of the present invention;

[0027] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0029] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0030] Figure 5 This is a schematic diagram of the internal structure of the heating box of this utility model;

[0031] Figure 6 This is a schematic diagram showing the position and structure of the connecting block and the movable block of this utility model.

[0032] In the diagram: 1. Oven body; 2. First blower; 3. First air inlet pipe; 4. First air outlet pipe; 5. Heating box; 6. Heating assembly; 7. Filter screen; 8. Air outlet; 9. Dust collection tray; 10. First servo motor; 11. Reciprocating lead screw; 12. Slider; 13. Brush assembly; 14. Slide groove; 15. Ventilation pipe; 16. Second blower; 17. Second air inlet pipe; 18. Second air outlet pipe; 19. Placement rack; 20. Fixing block; 21. Guide rod; 22. Connecting block; 23. Groove; 24. Second servo motor; 25. Connecting strip; 26. Movable block. Detailed Implementation

[0033] 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.

[0034] Please see Figures 1-6 This utility model provides a technical solution: a hot air circulating oven with an automatic dust removal mechanism, comprising an oven body 1, a first blower 2, a first air inlet pipe 3, a first air outlet pipe 4, a heating box 5, a heating assembly 6, a filter screen 7, an air outlet 8, a dust collection tray 9, a first servo motor 10, a reciprocating lead screw 11, a slider 12, a brush assembly 13, a slide 14, a ventilation pipe 15, a second blower 16, a second air inlet pipe 17, a second air outlet pipe 18, a placement rack 19, a fixing block 20, a guide rod 21, a connecting block 22, a groove 23, a second servo motor 24, a connecting strip 25, and a movable block 26. The first blower 2 is installed on the right side of the oven body 1, and the first air outlet pipe 4 is installed below the first blower 2. The heating box 5 is installed inside the oven body 1 on the right side, and the first air inlet pipe 4 is installed on the right side of the first blower 2. The air duct 3 and the first air outlet duct 4 are connected to the interior of the heating box 5. When the first blower 2 is started, outside air enters through the first air inlet duct 3 and is sent into the heating box 5 through the first air outlet duct 4. The heating component 6 inside the heating box 5 starts to work and heats the air. The heated air is blown out through the air outlet 8 and enters the oven body 1 to dry the material. The hot air circulates in the oven body 1 to achieve efficient drying of the material. A dust collection tray 9 is installed inside the heating box 5 and is slidably connected to the heating box 5. The dust brushed off the filter screen 7 will be deposited in the dust collection tray 9 inside the heating box 5. After cleaning and waiting for the dust to settle, the dust collection tray 9 can be pulled out to clean the dust. The heating component 6 is installed on the top inside the heating box 5, the filter screen 7 is installed inside the heating box 5, and the air outlet 8 is opened on the left side of the heating box 5.

[0035] A first servo motor 10 is installed on the top of the oven body 1, and a reciprocating lead screw 11 is installed below the first servo motor 10 via an output shaft. A slider 12 is installed on the reciprocating lead screw 11, and the slider 12 is slidably connected to the reciprocating lead screw 11. A sliding groove 14 is opened on the inner wall of the oven body 1, and the slider 12 is slidably connected to the sliding groove 14. When it is necessary to clean the dust inside the oven, the first servo motor 10 is started, and the output shaft of the first servo motor 10 drives the reciprocating lead screw 11 to rotate. Since the slider 12 is slidably connected to the reciprocating lead screw 11 and the sliding groove 14 opened on the inner wall of the oven body 1, the slider 12 will reciprocate linearly along the sliding groove 14 under the drive of the reciprocating lead screw 11. The brush assembly 13 installed below the slider 12 abuts against the filter screen 7 and is slidably connected to the heating box 5. Therefore, the brush assembly 13 will brush back and forth on the surface of the filter screen 7 with the movement of the slider 12, brushing off the dust on the filter screen 7. A brush assembly 13 is installed below the filter screen 7, and the brush assembly 13 is in contact with the filter screen 7 and is slidably connected to the heating box 5. When the brush assembly 13 moves up and down under force, it can clean the dust on the filter screen 7. A ventilation pipe 15 is installed above the oven body 1. A second blower 16 is installed on the left side of the oven body 1. A second air inlet pipe 17 is installed on the left side of the second blower 16. A second air outlet pipe 18 is installed above the second blower 16. The second air outlet pipe 18 is connected to the inside of the oven body 1 and corresponds to the air outlet 8 on the heating box 5. A control valve is installed on the second air outlet pipe 18. When cleaning dust, the second blower 16 is started at the same time. Outside air enters the second blower 16 through the second air inlet pipe 17, and then is sent into the oven body 1 through the second air outlet pipe 18. Then, the filter screen 7 is flushed in reverse through the air outlet 8 on the heating box 5, thereby improving the cleaning efficiency of the filter screen 7.

[0036] The oven body 1 has a placement rack 19 inside, and a connecting block 22 is installed on the rear side of the placement rack 19. The rear side of the connecting block 22 has a groove 23. A second servo motor 24 is installed on the rear side of the oven body 1, and a connecting bar 25 is installed on the front end of the second servo motor 24 through the output shaft. A movable block 26 is installed on the connecting bar 25. Fixed blocks 20 are installed on both the left and right sides of the placement rack 19. Guide rods 21 are installed on both the left and right sides inside the oven body 1. The fixed blocks 20 are slidably connected to the guide rods 21. The movable block 26 is engaged with the groove on the connecting block 22. Inside the slot 23, the second servo motor 24 is started. The output shaft of the second servo motor 24 drives the connecting bar 25 to rotate. The movable block 26 on the connecting bar 25 rotates accordingly. Since the movable block 26 is engaged in the groove 23 on the connecting block 22, the fixed blocks 20 on the left and right sides of the placement rack 19 are slidably connected to the guide rods 21 on the left and right sides inside the oven body 1. The rotation of the movable block 26 will drive the connecting block 22 and the placement rack 19 to move up and down along the guide rods 21, thereby moving the placement rack 19 up and down inside the oven body 1, improving the drying efficiency of the items inside the oven body 1.

[0037] Working Principle: When using this hot air circulating oven with an automatic dust removal mechanism, firstly, place the material to be dried on the placement rack 19, start the first blower 2, and outside air enters through the first air inlet pipe 3 and is sent into the heating chamber 5 through the first air outlet pipe 4. The heating component 6 in the heating chamber 5 starts working to heat the air. The heated air is blown out through the air outlet 8 and enters the oven body 1 to dry the material. The hot air circulates within the oven body 1, achieving efficient drying of the material. Then, start the second servo motor... The output shaft of the second servo motor 24 drives the connecting bar 25 to rotate, and the movable block 26 on the connecting bar 25 rotates accordingly. Since the movable block 26 is engaged in the groove 23 on the connecting block 22, the fixed blocks 20 on the left and right sides of the placement rack 19 are slidably connected to the guide rods 21 on the left and right sides inside the oven body 1. The rotation of the movable block 26 will drive the connecting block 22 and the placement rack 19 to move up and down along the guide rods 21, thereby moving the placement rack 19 up and down inside the oven body 1, improving the drying efficiency of the items inside the oven body 1.

[0038] When it is necessary to clean the dust inside the oven, the first servo motor 10 and the second blower 16 are started. The output shaft of the first servo motor 10 drives the reciprocating screw 11 to rotate. The slider 12, driven by the reciprocating screw 11, moves back and forth along the slide groove 14, which in turn drives the brush assembly 13 below to move up and down, brushing the filter screen 7 back and forth to remove the dust. Outside air enters the second blower 16 through the second air inlet pipe 17, and then is sent into the oven body 1 through the second air outlet pipe 18. Then, it reverse-flushes the filter screen 7 through the air outlet 8 on the heating box 5, thereby improving the cleaning efficiency of the filter screen 7 and completing a series of tasks. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0039] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A hot air circulation oven with automatic dust cleaning mechanism, comprising an oven body (1), characterized in that: The right side of the oven body (1) is provided with a first air blower (2), and the lower side of the first air blower (2) is provided with a first air outlet pipe (4); the right side of the inside of the oven body (1) is provided with a heating box (5), and the inner top of the heating box (5) is provided with a heating assembly (6); the inside of the heating box (5) is provided with a filter screen (7), and the left side of the heating box (5) is provided with an air outlet (8). The upper side of the oven body (1) is provided with a first servo motor (10), and the lower side of the first servo motor (10) is provided with a reciprocating screw rod (11) through an output shaft; the reciprocating screw rod (11) is provided with a sliding block (12), and the lower side of the sliding block (12) is provided with a brush assembly (13); the upper side of the oven body (1) is provided with a ventilation pipe (15), and the left side of the oven body (1) is provided with a second air blower (16). The inside of the oven body (1) is provided with a placing rack (19), and the rear side of the placing rack (19) is provided with a connecting block (22); the rear side of the connecting block (22) is provided with a groove (23); the rear side of the oven body (1) is provided with a second servo motor (24), and the front end of the second servo motor (24) is provided with a connecting strip (25) through an output shaft; the connecting strip (25) is provided with a movable block (26).

2. The hot air circulation oven with automatic ash cleaning mechanism according to claim 1, characterized in that: The right side of the first air blower (2) is provided with a first air inlet pipe (3), and the inside of the first air outlet pipe (4) is communicated with the heating box (5).

3. The hot air circulation oven with automatic ash cleaning mechanism according to claim 2, characterized in that: The inside of the heating box (5) is provided with a dust collecting drawer (9), and the dust collecting drawer (9) is slidably connected with the heating box (5).

4. The hot air circulating oven with automatic ash cleaning mechanism according to claim 1, characterized in that: The sliding block (12) is slidably connected with the reciprocating screw rod (11), and the inner wall of the oven body (1) is provided with a sliding groove (14); the sliding block (12) is slidably connected with the sliding groove (14).

5. The hot air circulating oven with automatic ash cleaning mechanism according to claim 1, characterized in that: The brush assembly (13) is abutted with the filter screen (7), and the brush assembly (13) is slidably connected with the heating box (5).

6. The hot air circulating oven with automatic ash cleaning mechanism according to claim 1, characterized in that: The left side of the second air blower (16) is provided with a second air inlet pipe (17), the upper side of the second air blower (16) is provided with a second air outlet pipe (18), the inside of the oven body (1) is communicated with the second air outlet pipe (18), the second air outlet pipe (18) corresponds to the air outlet (8) on the heating box (5), and the second air outlet pipe (18) is provided with a control valve.

7. The hot air circulating oven with automatic ash cleaning mechanism according to claim 1, characterized in that: The left and right sides of the placing rack (19) are provided with fixed blocks (20), and the left and right sides of the inside of the oven body (1) are provided with guide rods (21); the fixed blocks (20) are slidably connected with the guide rods (21); and the movable block (26) is clamped in the groove (23) on the connecting block (22).

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