Drying box with screening function

Abstract

The drying box with the screening function comprises a box body, a hot air chamber, a screening mechanism, a driving mechanism and a cleaning mechanism, the screening mechanism comprises a plurality of screening plates arranged in the box body at equal intervals, rotating rods are arranged on the two sides of the screening plates and rotationally installed on the side walls of the box body, and the two sides, in the rotating direction of the screening plates, of the inner wall of the box body are arc-shaped. A discharge hole is formed in the bottom of the arc-shaped surface, far away from the hot air chamber, in the box body; the driving mechanism comprises a fixing chamber arranged on the box body, a servo motor is arranged on the top of the fixing chamber, a first driving gear is arranged on an output shaft of the servo motor, and a first driven gear meshed with the first driving gear is arranged at the end, penetrating into the fixing chamber, of the rotating rod. The two ends of the sieve plate perform reciprocating high-low interchange motion, so that materials roll on the sieve plate in a reciprocating manner under the action of gravity, the falling of the materials is accelerated, the screening efficiency of the materials is effectively improved, the drying area of the materials is increased, and the drying quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of drying box equipment, in particular to a drying box with a screening function. Background Art

[0002] A drying oven refers to a mechanical device that uses heat energy to reduce the moisture content of materials. It is used to dry objects. The drying oven vaporizes the moisture in the material by heating to obtain solid materials with a specified moisture content. Currently, when drying materials, the raw materials are usually poured directly into the drying oven for drying. The drying oven can screen and collect the materials by setting a screening net or filter. When screening in the existing technology, a vibration motor is usually used to drive the screen plate to vibrate and screen the materials. In the process of conveying the materials to the screen plate, the materials are transported from the storage and feeding equipment to the screen plate. The materials that fall on the screen plate are prone to accumulation on the screen plate. During the screening process, it is difficult to spread the materials quickly and evenly by vibration alone, which affects the screening efficiency. In addition, hot air is usually blown in from one side, and then convective heat is transferred in the box to evaporate the moisture of the materials. However, due to the limited contact area between the materials, uneven drying occurs. Utility Model Content

[0003] In response to the above problems, the utility model provides a drying box with a screening function. When drying materials, the two ends of the screen plate perform reciprocating motion with their heights interchanged, and the materials roll left and right under the action of gravity, thereby improving the screening efficiency of the materials and fully drying the materials.

[0004] The technical solution of the utility model is as follows:

[0005] A drying oven with a screening function, comprising a box body and:

[0006] A hot air chamber is provided on the side of the box body, a hot air blower is provided in the hot air chamber, and a ventilation mesh is provided between the hot air chamber and the box body;

[0007] The screening mechanism is arranged inside the box body, and includes a plurality of sieve plates equidistantly arranged inside the box body. Rotating rods are provided on both sides of the sieve plates and are rotatably mounted on the side walls of the box body. The inner walls of the box body are arc-shaped on both sides along the rotation direction of the sieve plates. A discharge port is provided at the bottom of the arc-shaped surface of the box body away from the hot air chamber.

[0008] The driving mechanism is provided on the side of the box body, and includes a fixed chamber provided on the box body, a servo motor is provided on the top of the fixed chamber, a driving gear 1 is provided on the output shaft of the servo motor, and a driven gear 1 is provided at one end of the rotating rod that passes through the fixed chamber and is engaged with the driving gear 1;

[0009] The cleaning mechanism is arranged below the screening mechanism and comprises a scraper rod arranged below the screening net and a moving device for driving the scraper rod to move back and forth in a straight line. A slide rail for moving the scraper rod is provided at the bottom of the screen plate.

[0010] The working principle of the above technical solution is as follows:

[0011] When the utility model is used in a drying box with a screening function, materials are placed on the screen plate, and the servo motor drives the driving gear to rotate forward and reverse, thereby driving the two ends of the screen plate to perform reciprocating high and low interchangeable movements. Under the action of gravity, the materials roll left and right on the screen plate, thereby increasing the contact area with the hot air. During the rotation of the screen plate, the screened and dried materials can naturally flow to the discharge port at the lower end. In this process, the end face of the screen plate contacts the inner wall of the box to prevent the materials from falling out of the screen plate. The scraper at the bottom of the screen plate can clean the impurities on the screen plate to prevent the filter holes from being blocked, thereby affecting the screening efficiency.

[0012] The utility model realizes reciprocating high and low interchangeable motions at both ends of the screen plate, so that the material can be rolled back and forth on the screen plate under the action of gravity, which accelerates the falling of the material, effectively improves the screening efficiency of the material, increases the drying area of ​​the material, and improves the drying quality.

[0013] In a further technical solution, the moving device includes a threaded rod horizontally arranged under the sieve plate, one end of the threaded rod passes through the fixed chamber and is provided with a driven gear 2, the output shaft of the servo motor is provided with a driving gear 2 meshing with the driven gear 2, the threaded rod is provided with a moving ring with matching threads, the external rotation of the moving ring is connected with a connecting ring, the connecting ring is provided with a U-shaped fixing port, and the U-shaped fixing port is movably connected to the bottom of the scraper rod, the servo motor drives the driving gear 2 forward and reverse, thereby driving the threaded rod forward and reverse, the thread on the inner wall of the moving ring cooperates with the thread of the threaded rod, so that the moving ring moves left and right on the threaded rod, and drives the connecting ring to move left and right, the scraper rod is movably connected to the connecting ring, and the connecting ring is rotatably connected to the moving ring, and the slide rail at the bottom of the sieve plate can drive the scraper rod to rotate with the sieve plate, so that the scraper rod can clean the sieve plate in real time.

[0014] In a further technical solution, a feed port is provided at the top of the box body and adjacent to the hot air chamber, a feed roller is rotatably connected to the feed port, and a plurality of grooves are provided in the middle of the feed roller, and a drive motor for driving the feed roller is equipped on the side of the feed port. The material is put into the feed port, and then the feed roller is driven to rotate by the drive motor, so that the material falling into the groove can fall onto the screen plate, and the material is fed in equal portions to avoid excessive material on the screen plate, thereby affecting the quality of screening and drying.

[0015] In a further technical solution, a storage plate is provided below the discharge port, and the storage plate is used to receive a collection box. The collection box is detachably connected to the box body and can automatically collect, screen and dry the materials.

[0016] In a further technical solution, the aperture of the filter holes of the sieve plate becomes smaller from top to bottom, and the aperture of the ventilation mesh is smaller than the minimum aperture of the sieve plate, thereby realizing automatic multi-stage screening. The mesh opening of the ventilation mesh is the smallest, which can prevent the material from falling into the hot air chamber, and fine impurities can be blown to the sieve plate by the hot air blower.

[0017] In a further technical solution, a waste box is provided at the bottom of the box body for collecting waste and impurities.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model makes the two ends of the screen plate perform reciprocating high and low interchangeable motion, so that the material can roll back and forth on the screen plate under the action of gravity, which accelerates the falling of the material, effectively improves the screening efficiency of the material, increases the drying area of ​​the material, and improves the drying quality;

[0020] 2. The servo motor drives the active gear 2 to rotate forward and reverse, thereby driving the threaded rod to rotate forward and reverse. The threads on the inner wall of the moving ring match the threads of the threaded rod, so that the moving ring moves left and right on the threaded rod, and drives the connecting ring to move left and right. The scraper rod is movably connected to the connecting ring, and the connecting ring is rotatably connected to the moving ring. The slide rail at the bottom of the screen plate can drive the scraper rod to rotate with the screen plate, so that the scraper rod can clean the screen plate in real time.

[0021] 3. The material is put into the feed port, and then the driving motor drives the discharge roller to rotate, so that the material falling into the groove can fall onto the screen plate, and the material is discharged in equal portions to avoid excessive material on the screen plate, which affects the quality of screening and drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a drying oven with a screening function according to an embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 Schematic diagram of the cross-section structure;

[0024] Figure 3 yes Figure 1 A schematic diagram of the side section structure of FIG.

[0025] Figure 4 It is a schematic diagram of the connection structure of the mobile ring and the connecting ring;

[0026] Figure 5 It is a schematic diagram of the enlarged structure at point A.

[0027] Description of reference numerals:

[0028] 1. Box body; 2. Hot air chamber; 21. Hot air blower; 22. Ventilation mesh port; 3. Feed port; 31. Drive motor; 32. Unloading roller; 4. Screen plate; 41. Driven gear 1; 42. Slide rail; 5. Fixed chamber; 51. Servo motor; 52. Driving gear 1; 53. Driving gear 2; 6. Threaded rod; 61. Driven gear 2; 62. Moving ring; 63. Connecting ring; 64. U-shaped fixing port; 7. Discharge port; 71. Storage plate; 72. Collection box; 8. Waste box; 9. Scraper rod. DETAILED DESCRIPTION

[0029] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0030] Example:

[0031] A drying oven with screening function, such as Figures 1 to 3 As shown, it includes a box body 1, a hot air chamber 2, which is arranged on the side of the box body 1, a hot air blower 21 is provided in the hot air chamber 2, and a ventilation mesh port 22 is provided between the hot air chamber 2 and the box body 1; a screening mechanism is provided inside the box body 1, including a plurality of sieve plates 4 equidistantly provided in the box body 1, and rotating rods are provided on both sides of the sieve plates 4, and are rotatably mounted on the side walls of the box body 1, and the inner walls of the box body 1 are arc-shaped on both sides along the rotation direction of the sieve plates 4, and the bottom of the arc surface in the box body 1 away from the hot air chamber 2 is provided with a discharge port 7; a driving mechanism, It is arranged on the side of the box body 1, including a fixed chamber 5 arranged on the box body 1, a servo motor 51 is provided on the top of the fixed chamber 5, a driving gear 52 is provided on the output shaft of the servo motor 51, and a driven gear 41 meshing with the driving gear 52 is provided at one end of the rotating rod passing through the fixed chamber 5; the cleaning mechanism is arranged below the screening mechanism, including a scraper rod 9 arranged below the screening net and a moving device that drives the scraper rod 9 to move back and forth in a straight line, and a slide rail 42 for moving the scraper rod 9 is provided at the bottom of the screen plate 4.

[0032] When the drying box with screening function of the present invention is used, the material is placed on the sieve plate 4, and the servo motor 51 drives the driving gear 52 to rotate forward and reverse, thereby driving the two ends of the sieve plate 4 to perform reciprocating high and low interchangeable movements. Under the action of gravity, the material rolls left and right on the sieve plate 4, increasing the contact area with the hot air. During the rotation of the sieve plate 4, the screened and dried material can naturally flow to the discharge port 7 at the lower end. In this process, the end face of the sieve plate 4 is in contact with the inner wall of the box body 1 to prevent the material from falling out of the sieve plate 4. The scraper 9 at the bottom of the sieve plate 4 can clean the impurities on the sieve plate 4 to prevent the filter holes from being blocked, thereby affecting the screening efficiency.

[0033] The utility model realizes reciprocating high and low interchange motion of the two ends of the screen plate 4, so that the material can roll back and forth on the screen plate 4 under the action of gravity, which accelerates the falling of the material, effectively improves the screening efficiency of the material, increases the drying area of ​​the material, and improves the drying quality.

[0034] In another embodiment, Figure 4 and Figure 5 As shown, the moving device includes a threaded rod 6 horizontally arranged under the sieve plate 4, one end of the threaded rod 6 passes through the fixed chamber 5 and is provided with a driven gear 2 61, and the output shaft of the servo motor 51 is provided with a driving gear 2 53 meshing with the driven gear 2 61, and a moving ring 62 with matching threads is provided on the threaded rod 6, and the external rotation of the moving ring 62 is connected with a connecting ring 63, and the connecting ring 63 is provided with a U-shaped fixing port 64, and the U-shaped fixing port 64 is movably connected with the bottom of the scraper rod 9. The servo motor 51 drives the driving gear 2 53 to rotate forward and reverse, thereby driving the threaded rod 6 to rotate forward and reverse, and the thread on the inner wall of the moving ring 62 cooperates with the thread of the threaded rod 6, so that the moving ring 62 moves left and right on the threaded rod 6, and drives the connecting ring 63 to move left and right, and the scraper rod 9 is movably connected to the connecting ring 63, and the connecting ring 63 is rotatably connected to the moving ring 62. The slide rail 42 at the bottom of the sieve plate 4 can drive the scraper rod 9 to rotate with the sieve plate 4, so that the scraper rod 9 can clean the sieve plate 4 in real time.

[0035] In this embodiment, the sieve plate 4 rotates a certain angle, the upper end of the sieve plate 4 rotates downward, and the lower end of the sieve plate 4 rotates upward. During this process of exchanging the heights of the two ends, the moving device completes the movement from one end of the threaded rod 6 to the other end.

[0036] In another embodiment, a feed port 3 is provided at the top of the box body 1 and adjacent to the hot air chamber 2, and a discharge roller 32 is rotatably connected to the feed port 3, and a plurality of grooves are provided in the middle of the discharge roller 32. A drive motor 31 for driving the discharge roller 32 is equipped on the side of the feed port 3. The material is fed into the feed port 3, and then the discharge roller 32 is driven to rotate by the drive motor 31, so that the material falling into the groove can fall onto the screen plate 4, and the material is discharged in equal portions to avoid excessive material on the screen plate 4, thereby affecting the quality of screening and drying.

[0037] In another embodiment, a storage plate 71 is provided below the discharge port 7. The storage plate 71 is used to receive a collection box 72. The collection box 72 is detachably connected to the box body 1 and can automatically collect, screen and dry the materials.

[0038] In another embodiment, the aperture of the filter holes of the sieve plate 4 becomes smaller from top to bottom, and the aperture of the ventilation mesh port 22 is smaller than the minimum aperture of the sieve plate 4, thereby realizing automatic multi-stage screening. The mesh opening of the ventilation mesh port 22 is the smallest, which can prevent the material from falling into the hot air chamber 2, and the fine impurities can be blown toward the sieve plate 4 by the hot air blower 21.

[0039] In another embodiment, a waste box 8 is provided at the bottom of the box body 1 for collecting waste and impurities.

[0040] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A drying oven with a screening function, comprising a box body, characterized in that: Also includes: A hot air chamber is provided on the side of the box body, a hot air blower is provided in the hot air chamber, and a ventilation mesh is provided between the hot air chamber and the box body; The screening mechanism is arranged inside the box body, and includes a plurality of sieve plates equidistantly arranged inside the box body. Rotating rods are provided on both sides of the sieve plates and are rotatably mounted on the side walls of the box body. The inner walls of the box body are arc-shaped on both sides along the rotation direction of the sieve plates. A discharge port is provided at the bottom of the arc-shaped surface of the box body away from the hot air chamber. The driving mechanism is provided on the side of the box body, and includes a fixed chamber provided on the box body, a servo motor is provided on the top of the fixed chamber, a driving gear 1 is provided on the output shaft of the servo motor, and a driven gear 1 is provided at one end of the rotating rod that passes through the fixed chamber and is engaged with the driving gear 1; The cleaning mechanism is arranged below the screening mechanism and comprises a scraper rod arranged below the screening net and a moving device for driving the scraper rod to move back and forth in a straight line. A slide rail for moving the scraper rod is provided at the bottom of the screen plate.

2. The drying oven with screening function according to claim 1, characterized in that: The moving device includes a threaded rod horizontally arranged below the screen plate, one end of the threaded rod passes through the fixed chamber and is provided with a driven gear 2, the output shaft of the servo motor is provided with a driving gear 2 engaged with the driven gear 2, the threaded rod is provided with a moving ring with matching threads, the outer rotation of the moving ring is connected to a connecting ring, the connecting ring is provided with a U-shaped fixing port, and the U-shaped fixing port is movably connected to the bottom of the scraper rod.

3. The drying oven with screening function according to claim 1, characterized in that: A feed port is provided at the top of the box body and adjacent to the hot air chamber. A feed roller is rotatably connected to the feed port, and a plurality of grooves are provided in the middle of the feed roller. A drive motor for driving the feed roller is installed on the side of the feed port.

4. The drying oven with screening function according to claim 1, characterized in that: A storage plate is provided below the discharge port, and the storage plate is used to receive a material collection box, and the material collection box is detachably connected to the box body.

5. The drying oven with screening function according to claim 1, characterized in that: The filter holes of the sieve plate have smaller apertures from top to bottom, and the aperture of the ventilation mesh opening is smaller than the minimum aperture of the sieve plate.

6. The drying oven with screening function according to claim 1, characterized in that: A waste box is provided at the bottom of the box body.

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