Feeding structure for microwave dryer

Abstract

The feeding structure comprises two side plates, a conveying belt and a limiting frame are arranged between the two side plates, a material storage box is arranged on the outer walls of the tops of the two side plates, a mounting cover is hinged to one side of the material storage box, a feeding barrel is arranged in the material storage box, and a feeding hole is formed in the feeding barrel. The scraping mechanism is used for cleaning the circumferential inner wall of the feeding cylinder; the quantifying mechanism is located under the scraping mechanism; and the spreading mechanism is located on one side of the quantifying mechanism and comprises a second motor, and a mounting groove is formed in the outer wall of one side of one side plate. The feeding structure for the microwave drying machine has the advantages that local or overall accumulation and uneven heating of materials are avoided, and the drying efficiency and quality of the materials are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to microwave drying machine technical field especially relates to a feed structure for microwave drying machine. BACKGROUND

[0002] Microwave drying machine, also known as microwave dryer or industrial microwave oven, is a kind of industrial equipment using microwave energy to heat and dry material quickly, and the working principle of microwave drying machine is based on the energy excitation of water molecules in substance by microwave.When microwave energy acts on material, water molecules in material will absorb microwave energy and convert into heat energy, so that material is heated as a whole, and water in material will evaporate quickly to achieve the purpose of drying.

[0003] On the microwave drying production line of food processing plant, raw materials (such as vegetable slices, dried fruits, etc.) need to be sent into microwave drying machine for fast drying after pretreatment by conveying belt, when the feeding speed exceeds the conveying speed of conveying belt, the newly entered material will continuously accumulate on the existing material layer, forming local or overall accumulation phenomenon, so that uniform material layer cannot be formed during the laying process of conveying belt, which may cause the microwave energy to attenuate intensively during penetration, so that the internal material is unevenly heated, the outer layer is dried too fast while the inner layer is still wet, and even the outer layer may be scorched while the inner layer is not dry. UTILITY MODEL CONTENT

[0004] The utility model discloses a feed structure for microwave drying machine, which aims to solve the technical problem that on the microwave drying production line of food processing plant, raw materials (such as vegetable slices, dried fruits, etc.) need to be sent into microwave drying machine for fast drying after pretreatment by conveying belt, when the feeding speed exceeds the conveying speed of conveying belt, the newly entered material will continuously accumulate on the existing material layer, forming local or overall accumulation phenomenon, so that uniform material layer cannot be formed during the laying process of conveying belt, which may cause the microwave energy to attenuate intensively during penetration, so that the internal material is unevenly heated, the outer layer is dried too fast while the inner layer is still wet, and even the outer layer may be scorched while the inner layer is not dry.

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

[0006] A feed structure for microwave drying machine, comprising two side plates, a conveying belt and a limiting frame are arranged between the two side plates, a storage tank is arranged on the top outer wall of the two side plates, a mounting cover is hinged on one side of the storage tank, an inlet cylinder is arranged in the storage tank, and the feed structure further comprises:

[0007] Scraping mechanism: for cleaning the circumferential inner wall of the inlet cylinder;

[0008] Quantitative mechanism: located directly below the scraping mechanism;

[0009] The paving mechanism is located on one side of the metering mechanism, and comprises a second motor, wherein one side outer wall of the side plate is provided with a mounting groove, the second motor is mounted on the inner wall of the mounting groove, the output shaft of the second motor penetrates through one side inner wall of the limiting frame, and the output shaft of the second motor is fixedly connected with a mounting cylinder, one side outer wall of the limiting frame is provided with a mounting rod, and the circumferential outer wall of the mounting rod is hinged with fourteen scrapers.

[0010] The above technical scheme can avoid local or overall accumulation of materials, occurrence of uneven heating, improve the drying efficiency and quality of the materials, and specifically, when in use, the worker opens the mounting cover on the storage box, then puts the pretreated dried fruits into the feeding cylinder, then stirs the dried fruits through the scraping mechanism and scrapes off part of the dried fruits attached to the inner wall of the feeding cylinder, the dried fruits fall along the guide plate to the inside of the metering mechanism, the dried fruits are quantitatively dropped onto the surface of the conveying belt through the metering mechanism, the conveying belt is linearly conveyed from left to right, the second motor is started, the output shaft of the second motor drives the mounting cylinder to rotate in place, so that when the conveying belt loaded with the dried fruits passes through the bottom of the mounting cylinder, the dried fruits can be uniformly moved and paved, so that the dried fruits are evenly paved on the conveying belt, the scrapers can uniformly and evenly pave the dried fruits on the conveying belt, which ensures the universality and uniformity of the paving, and effectively avoids the accumulation or missing of the materials.

[0011] In one preferred scheme, the scraping mechanism comprises a fixing frame, three first cleaning plates and a second cleaning plate, the second cleaning plate is located below the first cleaning plates, the bottom inner wall of the storage box is provided with a mounting port, the fixing frame is mounted on the inner wall of the mounting port, the inside of the fixing frame is provided with a first motor, the output shaft of the first motor is fixedly connected with a connecting frame, the top outer wall of the connecting frame is provided with two electric telescopic rods, the circumferential inner wall of each of the three first cleaning plates is provided with a support plate, the movable end of the electric telescopic rod is fixedly connected with one of the support plates, the circumferential inner wall of the second cleaning plate is provided with a connecting plate, two connecting rods are arranged between adjacent two support plates and between one of the support plates and the connecting plate.

[0012] In the scheme, in operation, the first motor starts, thereby driving the connecting frame to rotate, at the same time, the movable end of the electric telescopic rod adjusts its telescopic length, so that the first cleaning plate and the second cleaning plate maintain appropriate contact force with the inner wall of the feeding cylinder, with the rotation of the connecting frame, the first cleaning plate and the second cleaning plate scrape and clean on the inner wall of the feeding cylinder, the movable end of the electric telescopic rod drives the connecting frame to elongate upward or retract downward, which can make the first cleaning plate and the second cleaning plate adapt to the material residues in different areas of multiple angles, and ensure the cleaning effect, during the whole feeding and storage process, the scraping mechanism continuously operates, which ensures the cleaning and unobstructed of the inner wall of the feeding cylinder, which helps to reduce the downtime caused by material blockage.

[0013] In a preferred scheme, the quantitative mechanism comprises a material laying bin, the material laying bin is located at the bottom of the fixed frame, one side of the inner wall of the material storage box is provided with a third motor, the output shaft of the third motor penetrates through one side of the inner wall of the material laying bin, and the output shaft of the third motor is fixedly connected with a quantitative tooth plate, and the bottom of the inner wall of the material laying bin is provided with a discharge port.

[0014] In the scheme, the dried fruits in the feeding cylinder enter the material laying bin through the installation opening along the guide plate by gravity, the third motor starts to drive the quantitative tooth plate to rotate in the material laying bin, the quantitative tooth plate controls the passing amount of dried fruits through the gap between adjacent tooth plates, so that the dried fruits flow out from the discharge port at a certain speed, and then enter the subsequent material laying mechanism for quantitative and uniform laying, thereby effectively improving the material laying efficiency.

[0015] As can be seen from the above, the feeding structure for the microwave drying machine comprises two side plates, a conveying belt and a limiting frame are arranged between the two side plates, a material storage box is arranged on the top outer wall of the two side plates, a mounting cover is hingedly connected to one side of the material storage box, the inside of the material storage box is provided with a feeding cylinder, and the feeding structure further comprises:

[0016] A scraping mechanism is arranged for cleaning the circumferential inner wall of the feeding cylinder.

[0017] A quantitative mechanism is arranged below the scraping mechanism.

[0018] A material laying mechanism is arranged on one side of the quantitative mechanism, the material laying mechanism comprises a second motor, an installation groove is formed in one side of the outer wall of one of the side plates, the second motor is installed on the inner wall of the installation groove, the output shaft of the second motor penetrates through one side of the inner wall of the limiting frame, and the output shaft of the second motor is fixedly connected with a mounting cylinder, an installation rod is arranged on one side of the outer wall of the limiting frame, and fourteen scrapers are hingedly connected to the circumferential outer wall of the installation rod. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The whole structure schematic view of the feeding structure for the microwave drying machine is provided.

[0020] Figure 2 The quantitative mechanism structure schematic view of the feeding structure for the microwave drying machine is provided.

[0021] Figure 3 The scraping mechanism structure schematic view of the feeding structure for the microwave drying machine is provided.

[0022] Figure 4 The quantitative tooth plate plane sectional view of the feeding structure for the microwave drying machine is provided.

[0023] Figure 5 The paving mechanism structure schematic view of the feeding structure for the microwave drying machine is provided.

[0024] In the drawings: 1, side plate; 2, conveying belt; 3, storage box; 4, mounting cover; 5, feeding cylinder; 6, limiting frame; 7, scraper; 8, fixing frame; 9, mounting cylinder; 10, paving bin; 11, quantitative tooth plate; 12, mounting rod; 13, first cleaning plate; 14, supporting plate; 15, first motor; 16, electric telescopic rod; 17, connecting plate; 18, connecting rod; 19, second cleaning plate; 20, discharge port; 21, guide plate; 22, second motor. DETAILED DESCRIPTION

[0025] 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 of the present application. The components of the embodiments of the present application described and indicated in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0026] The utility model discloses a kind of feeding structure for microwave dryer, mainly applied to the microwave drying production line of food processing factory, raw material such as vegetable slice, fruit dry etc.

[0027] With reference to Figure 1 、 Figure 2 and Figure 5 A kind of feeding structure for microwave dryer, including two side plates 1, conveying belt 2 and limiting frame 6 are equipped between two side plates 1, the top outer wall of two side plates 1 is equipped with storage tank 3, one side of storage tank 3 is hinged with installation cover 4, the inside of storage tank 3 is equipped with feeding cylinder 5, further include:

[0028] Scraping mechanism: for cleaning the circumferential inner wall of feeding cylinder 5;

[0029] Quantitative mechanism: located just below scraping mechanism;

[0030] Laying mechanism: located in one side of quantitative mechanism, laying mechanism includes second motor 22, one side outer wall of one side plate 1 is provided with installation groove, second motor 22 is installed in the inner wall of installation groove, the output shaft of second motor 22 penetrates the inner wall of one side of limiting frame 6, and the output shaft of second motor 22 is fixedly connected with installation cylinder 9, one side outer wall of limiting frame 6 is equipped with mounting rod 12, and fourteen scrapers 7 are hinged on the circumferential outer wall of mounting rod 12.

[0031] Among them, the bottom end of scraper 7 is arc structure, the circumferential inner wall of feeding cylinder 5 is equipped with guide plate 21, the cross section of guide plate 21 is right trapezoidal structure, arc structure scraper 7 can better adhere to the surface of conveying belt 2, especially when encountering accumulated material, can be dispersed and flattened by its arc bottom, ensure that material is evenly laid on conveying belt 2, which helps material to be heated evenly in subsequent microwave drying process, improve drying efficiency and quality, the design of guide plate 21 improves the discharging efficiency of feeding cylinder 5, so that material can enter laying mechanism more quickly and stably.

[0032] In specific use process, the lowest end of installation cylinder 9 and the bottom end of scraper 7 are located on the same horizontal plane, scraper 7 can realize the uniform distribution of material on conveying belt 2, and this design also helps to reduce the accumulation and blockage of fruit dry between scraper 7 and installation cylinder 9, improve overall feeding efficiency.

[0033] Specifically, in use, the worker opens the installation cover 4 on the storage box 3, then puts the pretreated dried fruits into the feeding cylinder 5, and then stirs the dried fruits through the scraping mechanism and scrapes off part of the dried fruits attached to the inner wall of the feeding cylinder 5. The dried fruits fall along the guide plate 21 to the inside of the quantifying mechanism, and then the quantifying mechanism quantifies the dried fruits to fall onto the surface of the conveying belt 2. During the straight conveying process of the conveying belt 2 from left to right, the second motor 22 is started, and the output shaft of the second motor 22 drives the installation cylinder 9 to rotate in place, so that when the conveying belt 2 loaded with dried fruits passes through the bottom of the installation cylinder 9, the dried fruits can be uniformly moved and laid, so that the dried fruits are evenly laid on the conveying belt 2. The scraper 7 can again uniformly lay and flatten the dried fruits on the conveying belt 2, effectively avoiding the accumulation or missing of the material. The device can avoid the occurrence of local or overall accumulation of the material and uneven heating, and improve the drying efficiency and quality of the material.

[0034] With reference to Figure 1 , Figure 2 and Figure 3 , in a preferred embodiment, the scraping mechanism comprises a fixed frame 8, three first cleaning plates 13 and a second cleaning plate 19. The second cleaning plate 19 is located below the first cleaning plate 13. An installation opening is formed in the inner wall of the bottom of the storage box 3. The fixed frame 8 is installed on the inner wall of the installation opening. A first motor 15 is arranged in the fixed frame 8. The output shaft of the first motor 15 is fixedly connected with a connecting frame. Two electric telescopic rods 16 are arranged on the top outer wall of the connecting frame. A supporting plate 14 is arranged on the circumferential inner wall of each of the three first cleaning plates 13. The movable end of each electric telescopic rod 16 is fixedly connected with one of the supporting plates 14. A connecting plate 17 is arranged on the circumferential inner wall of the second cleaning plate 19. Two connecting rods 18 are arranged between adjacent two supporting plates 14 and between one of the supporting plates 14 and the connecting plate 17.

[0035] Among them, the supporting plate 14 is a "cross" structure, which not only enhances the stability and carrying capacity of the supporting plate 14, but also optimizes the connection mode and efficiency of the first cleaning plate 13, the second cleaning plate 19 and the whole scraping mechanism.

[0036] In the specific implementation process, the outer diameter of the first cleaning plate 13 and the second cleaning plate 19 is equal to the inner diameter of the feeding cylinder 5. The close fit can ensure that the first cleaning plate 13 and the second cleaning plate 19 can more effectively scrape or clean the residues on the inner wall of the feeding cylinder 5.

[0037] Specifically, in operation, the first motor 15 is started to drive the connecting frame to rotate, and the movable end of the electric telescopic rod 16 adjusts its telescopic length to make the first cleaning plate 13 and the second cleaning plate 19 maintain appropriate contact force with the inner wall of the feeding cylinder 5. With the rotation of the connecting frame, the first cleaning plate 13 and the second cleaning plate 19 scrape and clean the inner wall of the feeding cylinder 5. The movable end of the electric telescopic rod 16 drives the connecting frame to extend upward or retract downward to make the first cleaning plate 13 and the second cleaning plate 19 adapt to the material residues in different areas at different angles, ensuring the cleaning effect. During the whole feeding and storage process, the scraping mechanism continuously operates to ensure the cleanliness and unobstructedness of the inner wall of the feeding cylinder 5, which helps to reduce the downtime caused by material blockage.

[0038] Referring to Figure 2 and Figure 4 In a preferred embodiment, the quantifying mechanism includes a material laying bin 10 located at the bottom of the fixed frame 8. One side inner wall of the material laying bin 10 is provided with a third motor. The output shaft of the third motor penetrates through one side inner wall of the material laying bin 10, and the output shaft of the third motor is fixedly connected with a quantifying toothed plate 11. The bottom inner wall of the material laying bin 10 is provided with a discharge port 20.

[0039] Specifically, the dried fruits in the feeding cylinder 5 fall into the material laying bin 10 through the installation port along the guide plate 21. The third motor is started to drive the quantifying toothed plate 11 to rotate in the material laying bin 10. The quantifying toothed plate 11 controls the passing amount of the dried fruits through the gap between adjacent toothed plates, so that the dried fruits flow out of the discharge port 20 at a certain speed and then are uniformly laid by the subsequent material laying mechanism, thereby effectively improving the material laying efficiency.

[0040] Working principle: in use, the worker opens the installation cover 4 on the material storage box 3, then puts the pretreated dried fruits into the feeding cylinder 5, and then stirs the dried fruits and scrapes off part of the dried fruits attached to the inner wall of the feeding cylinder 5 by the scraping mechanism. The dried fruits fall into the interior of the quantifying mechanism along the guide plate 21, and then are quantitatively dropped onto the surface of the conveying belt 2 by the quantifying mechanism. In the straight conveying process of the conveying belt 2 from left to right, the second motor 22 is started, the output shaft of the second motor 22 drives the installation cylinder 9 to rotate in place, so that when the conveying belt 2 loaded with dried fruits passes through the bottom of the installation cylinder 9, the dried fruits can be uniformly moved and laid, so that the dried fruits are evenly laid on the conveying belt 2. The scraper 7 can again uniformly lay the dried fruits on the conveying belt 2, which not only ensures the universality of the material laying, but also ensures the uniformity of the material laying, effectively avoiding the situation of material accumulation or missing laying.

[0041] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent replacement or change should be covered in the protection scope of the present application.

Claims

1. A feeding structure for a microwave dryer, comprising two side plates (1), a conveyor belt (2) and a limiting frame (6) disposed between the two side plates (1), characterized in that, The top outer wall of the two side plates (1) is provided with a storage box (3), and a mounting cover (4) is hinged to one side of the storage box (3). The storage box (3) is provided with a feed cylinder (5) inside, and also includes: Scraping mechanism: used to clean the inner circumference of the feed cylinder (5); Measuring mechanism: located directly below the scraping mechanism; Material spreading mechanism: Located on one side of the quantitative mechanism, the material spreading mechanism includes a second motor (22), one of the side plates (1) has an installation groove on one outer wall, the second motor (22) is installed on the inner wall of the installation groove, the output shaft of the second motor (22) passes through one inner wall of the limiting frame (6), and the output shaft of the second motor (22) is fixedly connected to an installation cylinder (9), and an installation rod (12) is provided on one outer wall of the limiting frame (6), and fourteen scrapers (7) are hinged to the circumferential outer wall of the installation rod (12).

2. The feeding structure for a microwave dryer according to claim 1, characterized in that, The bottom end of the scraper (7) is an arc-shaped structure, and the inner circumference of the feed cylinder (5) is provided with a guide plate (21), the cross-section of the guide plate (21) is a right-angled trapezoidal structure.

3. The feeding structure for a microwave dryer according to claim 2, characterized in that, The scraping mechanism includes a fixed frame (8), three first cleaning plates (13) and a second cleaning plate (19). The second cleaning plate (19) is located below the first cleaning plate (13). The bottom inner wall of the storage box (3) is provided with an installation port. The fixed frame (8) is installed on the inner wall of the installation port. The fixed frame (8) is provided with a first motor (15). The output shaft of the first motor (15) is fixedly connected to a connecting frame. The top outer wall of the connecting frame is provided with two electric telescopic rods (16). The inner circumference of the three first cleaning plates (13) is provided with a support plate (14). The movable end of the electric telescopic rod (16) is fixedly connected to one of the support plates (14). The inner circumference of the second cleaning plate (19) is provided with a connecting plate (17). Two connecting rods (18) are provided between two adjacent support plates (14) and between one of the support plates (14) and the connecting plate (17).

4. The feeding structure for a microwave dryer according to claim 3, characterized in that, The support plate (14) has a cross-shaped structure.

5. The feeding structure for a microwave dryer according to claim 4, characterized in that, The outer diameter of the first cleaning plate (13) and the second cleaning plate (19) is equal to the inner diameter of the feed cylinder (5).

6. The feeding structure for a microwave dryer according to claim 3, characterized in that, The quantitative mechanism includes a material distribution bin (10), which is located at the bottom of the fixed frame (8). A third motor is provided on one inner wall of the storage box (3). The output shaft of the third motor passes through one inner wall of the material distribution bin (10), and the output shaft of the third motor is fixedly connected to a quantitative toothed plate (11). A discharge port (20) is opened on the bottom inner wall of the material distribution bin (10).

7. The feeding structure for a microwave dryer according to claim 6, characterized in that, The lowest end of the mounting cylinder (9) and the bottom end of the scraper (7) are on the same horizontal plane.

Images