Hot air circulating oven

Abstract

The utility model discloses a hot air circulation drying oven which comprises a drying oven body and side supporting frames, the side supporting frames are symmetrically arranged in the drying oven body, a detachable supporting bottom frame is fixed between the two side supporting frames, a storage box is placed on the top face of each supporting bottom frame in an attached mode, and a storage net plate is fixed to the bottom face in each storage box. Through a layer-by-layer spraying mode, during drying, hot air can be uniformly sprayed on each layer of storage box, is in full contact with food or medicine materials in the storage box and takes away a large amount of water; the hot air circulating oven solves the problem that an existing hot air circulating oven is poor in baking effect due to the fact that hot air cannot be effectively utilized after being fed in during baking, the drying boxes on the two sides are matched, moisture can be dried when reaching the interiors of a fan and a heating cavity, it is avoided that the moisture catalyzes aging of the fan and a heating pipe, and meanwhile it is avoided that the moisture enters a flow guide cover again; the baking efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot -blast circulation oven technical field, especially a hot -blast circulation oven. BACKGROUND

[0002] ‌Hot -blast circulation oven is mainly used to dry, bake and solidify the processing to material, through the circulation of fan air supply mode, makes hot -blast even flow in the oven, thereby reaches the high -efficient baking effect, is widely used in food processing, chemical industry, pharmacy, electron, hardware, plastics and so on many fields, is applicable to baking has chemical nature gas and food processing to be baked goods, the solidification of ink, the drying of paint film etc.

[0003] When baking food or medicine material, because food or medicine material needs to be placed in the tray, each layer of tray will cause shielding when baking, leading to that air supply cannot accurately reach above each layer of tray, and the moisture after baking will be uniformly discharged through the exhaust port under the action of fan suction, which cannot effectively take away the moisture on food or medicine material of each layer of tray, reducing the baking effect when the airflow in the oven circulates, therefore, we provide a hot -blast circulation oven. UTILITY MODEL CONTENTS

[0004] The problem to be solved by the utility model lies in that the hot -blast circulation oven in the prior art cannot effectively utilize the hot -blast after being sent in, leading to poor baking effect.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a hot -blast circulation oven, which comprises an oven main body and a door, the oven main body is internally provided with symmetrical side support frames, a detachable support base is fixed between the two side support frames, a storage box is placed on the top surface of each support base, a storage mesh plate is fixed to the bottom surface of the storage box, a plurality of air guide through holes are equidistantly formed on the opposite sides of the two side support frames, a flow guide cover is arranged on the top surface of each storage box, a support base is fixed to the top surface of each flow guide cover, a heating cavity is arranged in the oven main body on one side of the side support frame, a plurality of heating pipes are equidistantly arranged in the heating cavity, an air guide channel is formed in the oven main body above the side support frame and communicates with the heating cavity, the rear side of each flow guide cover is connected with the air guide channel, a protective mesh plate is arranged on the bottom of the oven main body, a fan with a downward air outlet is arranged in the oven main body between the two protective mesh plates, the air inlet of the fan is connected with the inside of the side support frames, and the air outlet of the fan is connected with the inside of the heating cavity.

[0006] As a preferred scheme of the hot air circulation oven, the two sides of each support base are provided with L-shaped transverse placement which is attached to the inner wall of the side support frame, the inner wall of the two sides of each support base is threadedly sleeved with a fixed screw rod, and one end of each fixed screw rod penetrating to the outside of the support base is inserted into the air guide through hole.

[0007] As a preferred scheme of the hot air circulation oven, each air deflector is provided with a covered bucket shape, a first connecting pipe is fixedly penetrated in the middle of the rear side of each air deflector, a second connecting pipe is fixedly arranged on the inner wall of the oven main body at the rear side of each first connecting pipe, the second connecting pipe is in through connection with the air guide channel, a connecting sleeve pipe is threadedly sleeved on each second connecting pipe, and the front side of the connecting sleeve pipe is threadedly fixed on the outer surface of the rear end of the first connecting pipe.

[0008] As a preferred scheme of the hot air circulation oven, a partition plate is fixed between the two side support frames above the upper protective net plate, the partition plate is located below the air guide through hole, a backflow groove is arranged in the inner wall of the two side support frames below the partition plate, and the backflow groove is in through connection with the air inlet of the fan through the upper protective net plate.

[0009] As a preferred scheme of the hot air circulation oven, a gas guide opening is arranged in the inner wall of the side support frame near the heating cavity, the gas guide opening is located below the lower protective net plate, and the heating cavity is in through connection with the air outlet of the fan through the gas guide opening.

[0010] As a preferred scheme of the hot air circulation oven, each second connecting pipe is provided with a transversely placed T-shaped structure, a T-shaped rotating hole matched with the second connecting pipe is arranged in the inner wall of each connecting sleeve pipe, and a thread matched with the outer surface of the first connecting pipe is arranged in the inner wall of the front side of the rotating hole.

[0011] As a preferred scheme of the hot air circulation oven, a drying box is slidingly inserted into the inner wall of the two side support frames between the air guide through hole and the backflow groove, another placing net plate is fixed to the bottom of each drying box, and a drying agent is filled in the inner wall of the drying box above the two another placing net plates.

[0012] As a preferred scheme of the hot air circulation oven, the rear end of each drying box extends to the outside of the oven main body, a sealing plate is fixed to one end of the two drying boxes extending to the outside of the oven main body, and the sealing plate is fixed on the rear wall of the oven main body through bolts.

[0013] The utility model discloses beneficial effect is: the utility model discloses through the way of layer by layer spouts, when drying, make hot gas can evenly spray on every layer of the storage box, fully contact with the food or medicine material inside the storage box, and take away its large amount of moisture, solved the existing hot -blast circulation oven when baking hot blast is sent in and cannot be effectively utilized and lead to the problem of poor baking effect, cooperate both sides's drying box, can when the moisture reaches the fan and heating chamber inside, dry it, avoid moisture catalysis fan and heating pipe ageing, avoid moisture re-enters the fairing simultaneously, improve baking efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the following description in the drawing only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings. Wherein:

[0015] Figure 1 It is a kind of hot blast circulation oven overall front view.

[0016] Figure 2 It is a kind of hot blast circulation oven overall back view.

[0017] Figure 3 It is a kind of hot blast circulation oven internal structure diagram.

[0018] Figure 4 It is another view of a kind of hot blast circulation oven internal structure.

[0019] Figure 5 It is a kind of hot blast circulation oven internal structure section view.

[0020] Figure 6 It is a kind of hot blast circulation oven storage box structure diagram. DETAILED DESCRIPTION

[0021] The utility model will be specifically introduced below in connection with the drawing and embodiment.

[0022] Reference Figures 1-6The embodiment is a hot air circulation oven, which comprises an oven body 1 and an oven door 2, the oven body 1 is internally provided with symmetrical side support frames 3, the two side support frames 3 are fixed with detachable support chassis 4, each support chassis 4 is placed with a storage box 5 on the top surface, the inside bottom surface of the storage box 5 is fixed with a storage mesh plate 6, a plurality of air guide through holes 18 are equally arranged on the opposite sides of the two side support frames 3, each storage box 5 is provided with a flow guide cover 7 on the top surface, and each flow guide cover 7 is fixed with a support chassis 4 on the top surface, one side of one of the side support frames 3 is internally provided with a heating cavity 12 in the oven body 1, a plurality of heating pipes 13 are equally arranged in the heating cavity 12, an air guide channel 14 is arranged in the oven body 1 above the side support frame 3 and penetrates the inside of the heating cavity 12, the rear side of each flow guide cover 7 is connected with the inside of the air guide channel 14, the bottom of the oven body 1 is provided with a protective mesh plate 8, and a fan with a downward air outlet is arranged in the oven body 1 between the two protective mesh plates 8, the air inlet of the fan is connected with the inside of the two side support frames 3, and the air outlet of the fan is connected with the inside of the heating cavity 12.

[0023] In the embodiment, each support chassis 4 is provided as an L-shaped transverse placement which is attached to the inner wall of the side support frame 3, a fixed screw rod 21 is threadedly sleeved in the inside of each side wall of the support chassis 4, and one end of each fixed screw rod 21 which penetrates to the outside of the support chassis 4 is inserted into the air guide through hole 18.

[0024] In the embodiment, each flow guide cover 7 is provided as a covered bucket shape, which facilitates air guide and avoids water droplets in the upper storage box 5 from falling into the lower storage box 5, can flow into the side support frame 3 under the guidance of the flow guide cover 7, a first connecting pipe 15 is fixedly penetrated in the middle of the rear side of each flow guide cover 7, a second connecting pipe 16 is fixed on the inner wall of the oven body 1 on the rear side of each first connecting pipe 15, the second connecting pipe 16 is connected with the inside of the air guide channel 14, a connecting sleeve pipe 17 is threadedly sleeved on each second connecting pipe 16, and the front side of the connecting sleeve pipe 17 is threadedly fixed on the outer surface of the rear end of the first connecting pipe 15. The detachable support chassis 4 cooperates with the flow guide cover 7 which can be detached from the inside of the oven body 1 and taken out, which facilitates the cleaning of the inside of the flow guide cover 7, avoids stains caused by high temperature and material evaporation in the inside of the flow guide cover 7 from being cleaned when used for many times, and makes the oven more convenient to maintain when used.

[0025] In the embodiment, the two side support frames 3 above the upper protective net plate 8 are fixed with a partition plate 10 below the air guide through hole 18. The inner walls of the two side support frames 3 below the partition plate 10 are both provided with a backflow groove 9. The backflow groove 9 is connected with the air inlet of the fan through the upper protective net plate 8. The partition plate 10 guides the moisture discharged by the lowermost storage net plate 6, so that the moisture can enter the inside of the side support frame 3 after being dried in the inside of the connecting sleeve 17, and then enter the fan, thereby protecting the fan.

[0026] In the embodiment, the inner wall of the side support frame 3 near the heating cavity 12 is provided with an air guide port 11 below the lower protective net plate 8. The inside of the heating cavity 12 is connected with the air outlet of the fan through the air guide port 11. Under the action of the fan, the airflow enters the inside of the heating cavity 12 through the air guide port 11, and is divided into the inside of the first connecting pipe 15 through the air guide channel 14, and is sprayed out layer by layer through the flow guide cover 7.

[0027] In the embodiment, each second connecting pipe 16 is arranged as a T-shaped pipe placed horizontally. The inside of each connecting sleeve 17 is provided with a T-shaped rotating hole matched with the second connecting pipe 16. The front side of the rotating hole is provided with a thread matched with the outer surface of the first connecting pipe 15, so as to facilitate the fixation and sealing of the second connecting pipe 16 and the first connecting pipe 15 through the connecting sleeve 17, and to ensure that the hot airflow can enter the inside of the flow guide cover 7.

[0028] In the embodiment, the inside of the two side support frames 3 between the air guide through hole 18 and the backflow groove 9 is slidably provided with a drying box 19. The bottom of each drying box 19 is fixed with another storage net plate 6. The inside of the drying box 19 above the two another storage net plates 6 is filled with a drying agent for absorbing the moisture in the moisture entering the inside of the side support frame 3. The rear end of each drying box 19 extends to the outside of the oven main body 1. The one end of the two drying boxes 19 extending to the outside of the oven main body 1 is fixed with a sealing plate 20. The sealing plate 20 is fixed on the rear wall of the oven main body 1 through bolts. The drying agent in the inside of the drying box 19 can continuously absorb the moisture in the moisture in each baking cycle, thereby accelerating the drying speed.

[0029] Working principle: when the material needs to be dried, first adjust the distance between the support chassis 4 and the flow guide cover 7 according to the thickness of the storage box 5, adjust the top surface of the storage box 5 and the bottom surface of the flow guide cover 7, after the fit, the fixed screw rod 21 on both sides of the support chassis 4 at the bottom of the storage box 5 is screwed into the air guide hole 18, that is, the support chassis 4 at the bottom of the storage box 5 is fixed, after the fixation, the material is laid on the top surface of the storage net plate 6 inside the storage box 5, and the storage box 5 is placed layer by layer between the support chassis 4 and the flow guide cover 7, the side support frame 3 is closed, the fan and the heating pipe 13 are opened, the fan runs to drive the air circulation in the oven body 1, so that the air is sucked into the side support frame 3 through the storage net plate 6 at the bottom of the storage box 5, at this time, the water droplets remaining in the material in the storage box 5 flow out through the storage net plate 6, enter the side support frame 3 under the guidance of the flow guide cover 7, the water droplets and moisture enter the drying box 19 and are absorbed by the drying agent, the airflow dried by the drying box 19 reaches the fan inlet through the reflux tank 9, is discharged to the air guide 11 through the air outlet, enters the heating cavity 12 through the air guide 11, is heated by the heating pipe 13 in the heating cavity 12, and then enters the flow guide cover 7 through the air guide channel 14, the first connecting pipe 15 and the second connecting pipe 16. The dry hot air is sprayed out of each layer of the flow guide cover 7 to dry the food or medicine material, and the food or medicine material can be well prevented from being blown away, when the flow guide cover 7 needs to be cleaned, the fixed screw rod 21 on the support chassis 4 on both sides of the flow guide cover 7 is screwed out of the air guide hole 18, the connecting sleeve 17 is rotated to separate the connecting sleeve 17 from the second connecting pipe 16, the flow guide cover 7 is taken out for cleaning, after the cleaning is completed, the connecting sleeve 17 is aligned and placed in the oven body 1, the fixed screw rod 21 in the support chassis 4 on both sides is screwed into the air guide hole 18.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A hot air circulating oven, comprising an oven body (1) and an oven door (2), characterized in that: The oven body (1) is symmetrically provided with side support frames (3) inside. A detachable support base frame (4) is fixed between the two side support frames (3). A storage box (5) is placed on the top surface of each support base frame (4). A storage mesh plate (6) is fixed on the bottom surface of the storage box (5). Several air guide holes (18) are equally spaced on opposite sides of the two side support frames (3). A flow guide hood (7) is attached to the top surface of each storage box (5). A support base frame (4) is fixed on the top surface of each flow guide hood (7). The oven body (1) is provided with a side support frame (3) on one side of the side support frame (3). The heating chamber (12) has several heating tubes (13) arranged at equal intervals inside. The oven body (1) above the side support frame (3) has an air guide channel (14) that communicates with the interior of the heating chamber (12). The rear side of each air guide hood (7) is connected to the interior of the air guide channel (14). The bottom of the oven body (1) is provided with a protective mesh plate (8). The oven body (1) between the two protective mesh plates (8) is provided with a fan with the air outlet facing downward. The air inlet of the fan is connected to the interior of the two side support frames (3), and the air outlet of the fan is connected to the interior of the heating chamber (12).

2. A hot air circulating oven as described in claim 1, characterized in that: Each of the support base frames (4) is configured with a horizontally placed L-shape on both sides that fits against the inner wall of the side support frame (3). Each of the support base frames (4) has a fixed screw (21) threaded inside the side wall on both sides. One end of each fixed screw (21) that extends through to the outside of the support base frame (4) is inserted into the air guide hole (18).

3. A hot air circulating oven as described in claim 1, characterized in that: Each of the aforementioned air guides (7) is configured as an inverted bucket shape. A first connecting pipe (15) is fixed through the middle of the rear side of each of the aforementioned air guides (7). A second connecting pipe (16) is fixed on the inner wall of the oven body (1) behind each of the first connecting pipes (15). The second connecting pipes (16) are all connected through the air guide channel (14). A connecting sleeve (17) is threaded on each of the second connecting pipes (16). The front side of the connecting sleeve (17) is threaded on the outer surface of the rear end of the first connecting pipe (15).

4. A hot air circulating oven as described in claim 1, characterized in that: A partition plate (10) is fixed between the two side support frames (3) above the upper protective mesh plate (8). The partition plate (10) is located below the air guide hole (18). The inner walls of the two side support frames (3) below the partition plate (10) are provided with return grooves (9). The return grooves (9) are connected to the fan inlet through the upper protective mesh plate (8).

5. A hot air circulating oven as described in claim 1, characterized in that: An air duct (11) is provided through the inner wall of the side support frame (3) near the heating chamber (12). The air duct (11) is located below the lower protective mesh plate (8). The interior of the heating chamber (12) is connected to the air outlet of the fan through the air duct (11).

6. A hot air circulating oven as described in claim 3, characterized in that: Each of the second connecting tubes (16) is configured as a horizontally placed T-shape, and each of the connecting sleeves (17) has a T-shaped rotating hole inside that mates with the second connecting tube (16). The front side of the rotating hole is provided with a thread that mates with the outer surface of the first connecting tube (15).

7. A hot air circulating oven as described in claim 1, characterized in that: Drying boxes (19) are slidably inserted inside the two side support frames (3) between the lower part of the air guide hole (18) and the upper part of the return groove (9). Another storage mesh plate (6) is fixed to the bottom of each of the two drying boxes (19). The drying boxes (19) above the two other storage mesh plates (6) are filled with desiccant.

8. A hot air circulating oven as described in claim 7, characterized in that: Each of the drying boxes (19) extends to the outside of the oven body (1) at its rear end. A sealing plate (20) is fixed to one end of each of the two drying boxes (19) extending to the outside of the oven body (1). The sealing plates (20) are fixed to the rear wall of the oven body (1) by bolts.

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