Rotary tunnel oven

Abstract

The utility model relates to the technical field of food processing equipment, and discloses a rotary tunnel oven which comprises an oven body, a support is fixedly installed in the oven body, supporting plates are fixedly installed on the upper side and the lower side in the support respectively, two sliding rods are fixedly installed between the two supporting plates, and the two sliding rods are fixedly installed on the upper side and the lower side of the support respectively. And the two sliding rods are movably connected with three sleeves in a sleeving mode, connecting rods are fixedly installed between every two of the three sleeves on the two sliding rods, threaded rods are movably connected to the middles of the three connecting rods in an inserted mode, and the three connecting rods are in threaded connection with the three threaded rods correspondingly. According to the rotary tunnel oven, through the arrangement of the connecting rod, the screw rod and the abutting rod, the problem that an existing rotary tunnel oven cannot adjust the distance between an electric heating part and food so as not to meet different baking requirements can be solved, and through the arrangement of the mounting base, the stud, the pressing plate and the nut, the distance between the electric heating part and the food can be adjusted; the rotary tunnel oven can solve the problem that an existing rotary tunnel oven is inconvenient to maintain and clean.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to a rotary tunnel oven. Background Art

[0002] Tunnel oven (food processing type) is a tunnel-type mechanical equipment that bakes food through heat conduction, convection and radiation. There is a continuously running conveying system in the tunnel. When the food is baked, the food moves relative to the electric heating element or direct-fired combustion rod through the conveyor chain plate, steel belt or mesh belt. Thus, the work of uniform baking and conveying is completed. This type of oven can be produced continuously, with high production efficiency, labor saving and stable baking quality. This tunnel oven is mainly used in industrialized food enterprises, characterized by large-scale continuous or intermittent baking.

[0003] The rotary tunnel oven uses a multi-layer conveying system to increase the three-dimensional space, which can effectively reduce the length of the oven and thus reduce the space occupied by the oven. The required temperature of food at different stages will be different. The existing rotary tunnel oven cannot adjust the distance between the electric heating components and the food to meet different baking needs. Food processing requires higher hygiene standards. The existing rotary tunnel oven has many inconveniences in maintenance and cleaning. Finally, since the existing rotary tunnel oven has a multi-layer conveying system, food is transmitted between the multi-layer conveying systems, mostly in a free fall manner, which will cause food to fall and be damaged. For this reason, we propose a rotary tunnel oven. Utility Model Content

[0004] The main purpose of the utility model is to provide a rotary tunnel oven, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A rotary tunnel oven comprises a box body, wherein a bracket is fixedly installed inside the box body, support plates are fixedly installed on the upper and lower sides of the inner part of the bracket, two sliding rods are fixedly installed between two of the support plates, three sleeves are movably sleeved on the two sliding rods, connecting rods are fixedly installed between the three sleeves on the two sliding rods, screws are movably inserted in the middle of the three connecting rods, the three connecting rods are respectively threadedly connected with the three screws, three abutting rods are fixedly installed between the two sliding rods, one end of the three screws is movably abutted on the upper sides of the three abutting rods, a mounting frame is fixedly installed on one side of the three connecting rods, and heating tubes are fixedly installed on the three mounting frames.

[0007] Furthermore, the distances between any two of the three connecting rods are equal, a turntable is installed on the upper sides of the three screws, an inlet and an outlet are respectively provided on the box body, two first hinges are fixedly installed on one side of the box body, and the box body is hinged with a front door through the two first hinges, and two second hinges are fixedly installed on the other side of the box body, and the box body is hinged with a rear door through the two second hinges.

[0008] Furthermore, two first mounting rods are fixedly installed inside the bracket, and three first bearing columns are fixedly installed on the two first mounting rods. The first bearing column in the middle of the three first bearing columns on the two first mounting rods and the upper and lower first bearing columns are respectively installed on the opposite sides of the two first mounting rods. The horizontal distances between the three first bearing columns on the two first mounting rods are equal. Rollers are movably inserted on the three first bearing columns, and rollers are fixedly sleeved on one end of the six rollers. Mesh belts are movably connected between the six rollers.

[0009] Furthermore, two mounting seats are fixedly installed on the upper and lower sides of the bracket, respectively. The two mounting seats on the upper side of the bracket correspond to the two mounting seats on the lower side of the bracket, respectively. Two studs are fixedly installed on one side of the four mounting seats, and the two studs on the four mounting seats are movably connected with pressure plates, and nuts are threaded on the two studs on the four mounting seats.

[0010] Furthermore, two second mounting rods are provided on the bracket, and the upper ends and lower ends of the two second mounting rods are respectively clamped between two mounting seats and two pressure plates on the upper and lower sides of the bracket, and three second bearing columns are fixedly installed on the two second mounting rods. The second bearing column in the middle of the three second bearing columns on the two second mounting rods and the upper and lower second bearing columns are respectively installed on the opposite sides of the two second mounting rods, and the horizontal distances between the three second bearing columns on the two second mounting rods are equal. One ends of the six roller shafts are respectively movably inserted into the inside of the six second bearing columns, and one ends of the six roller shafts are fixedly sleeved with rings, and the six rings are respectively movably abutted against one side of the six second bearing columns.

[0011] Furthermore, six first support rods are fixedly installed on one side of the two first mounting rods, and a first clamping groove is opened at one end of the six first support rods on the two first mounting rods, the six first support rods on the two first mounting rods correspond to each other, and a first guide plate is arranged between the six first support rods on the two first mounting rods, and first clamping plates are fixedly installed at both ends of the six first guide plates, and the first clamping plates at both ends of the six first guide plates are respectively movably clamped in the first clamping grooves opened at one end of the six first support rods on the two first mounting rods, and the positions of the six first guide plates are respectively arranged on the upper and lower sides of the three mesh belts.

[0012] Furthermore, six second support rods are fixedly installed on one side of the two second mounting rods, a second clamping groove is opened at one end of the six second support rods on the two second mounting rods, the six second support rods on the two second mounting rods correspond to each other, a second guide plate is arranged between the six second support rods on the two second mounting rods, second clamping plates are fixedly installed at both ends of the six second guide plates, the second clamping plates at both ends of the six second guide plates are respectively movably clamped in the second clamping grooves opened at one end of the six second support rods on the two second mounting rods, and the positions of the six second guide plates are respectively arranged on the upper and lower sides of the three mesh belts.

[0013] Furthermore, connecting frames are fixedly installed on two opposite sides of the interior of the bracket, and arc-shaped baffles are fixedly installed on one side of the two connecting frames. The positions of the two arc-shaped baffles respectively correspond to one side of the upper mesh belt and the lower mesh belt among the three mesh belts.

[0014] Furthermore, three reducers are fixedly installed on one side of the box body, and transmission shafts are movably inserted on the three reducers. One ends of the three transmission shafts are movably inserted in the interior of the box body, and one ends of the three transmission shafts are respectively fixedly connected to three of the six roller shafts. Motors are fixedly installed on the lower sides of the six reducers, and motor shafts are arranged inside the three motors. The three motor shafts are movably inserted in the interiors of the three reducers, and gear sets are arranged inside the three reducers. The three motor shafts are respectively connected to the three transmission shafts through the gear sets. A controller is fixedly installed on one side of the box body, and the controller is electrically connected to the three heating tubes and the three motors, respectively.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model can solve the problem that the existing rotary tunnel oven cannot adjust the distance between the electric heating component and the food to meet different baking requirements by providing a connecting rod, a screw rod and an abutting rod. By providing an abutting rod, the screw rod can be abutted and the movement of the horizontal position of the screw rod can be restricted. Then, when the screw rod rotates, the rotating screw rod can drive the position of the connecting rod to move, and then drive the position of the mounting frame and the heating tube to move, so as to adjust the distance between the electric heating component and the food.

[0017] 2. The setting of the mounting seat, studs, pressure plates and nuts can solve the problem that the existing rotary tunnel oven has many inconveniences during maintenance and cleaning. The setting of the mounting seat and the pressure plate can clamp the second mounting rod. The setting of the studs and nuts can fix the second mounting rod clamped by the mounting seat and the pressure plate. When cleaning the device, the user unscrews the nut and removes the pressure plate. Then the user can remove the second mounting rod from the device, which makes it convenient for the user to remove the mesh belt from the device, and can facilitate the user to maintain and clean the three mesh belts and the six rollers inside the box.

[0018] 3. The connection frame and the arc baffle can solve the problem that the existing rotary tunnel oven adopts a multi-layer conveying system. The food is transported between the multi-layer conveying systems, mostly in a free fall manner, which may cause the food to fall and be damaged. When in use, the food will fall onto the arc baffle first during the falling process. Since the arc baffle is an arc-shaped setting, the food will slide from the arc baffle to the middle mesh belt. The buffering of the arc baffle can reduce the damage caused by the falling of food.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a rotary tunnel oven.

[0021] Figure 2 This is a schematic diagram of the other side of the overall structure of a rotary tunnel oven of the utility model.

[0022] Figure 3 It is a schematic diagram of opening the front door and the rear door of a rotary tunnel oven of the utility model.

[0023] Figure 4 The utility model is a schematic diagram of a bottle removal box of a rotary tunnel oven.

[0024] Figure 5 This is a schematic diagram of a rotary tunnel oven of the utility model with the other side of the box removed.

[0025] Figure 6 The utility model is a schematic diagram of a mounting frame, a heating tube and connecting parts of a rotary tunnel oven.

[0026] Figure 7 The utility model is a rotary tunnel oven Figure 3 A is an enlarged view of the middle image.

[0027] Figure 8 The utility model is a rotary tunnel oven Figure 5 Enlarged view of B.

[0028] In the figure: 1, box body; 2, feeding port; 3, discharging port; 4, bracket; 5, support plate; 6, sliding rod; 7, sleeve; 8, connecting rod; 9, screw rod; 10, abutting rod; 11, mounting frame; 12, heating tube; 13, mounting seat; 14, stud; 15, pressing plate; 16, nut; 17, first mounting rod; 18, second mounting rod; 19, first bearing column; 20, second bearing column; 21, roller; 22, roller; 23 , mesh belt; 24, first support rod; 25, second support rod; 26, first card slot; 27, second card slot; 28, first card plate; 29, second card plate; 30, first guide plate; 31, second guide plate; 32, collar; 33, connecting frame; 34, arc baffle; 35, reducer; 36, transmission shaft; 37, motor; 38, controller; 39, first hinge; 40, second hinge; 41, front door; 42, rear door. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] like Figure 1-Figure 8 As shown, a rotary tunnel oven comprises a box body 1, a bracket 4 is fixedly installed inside the box body 1, support plates 5 are fixedly installed on the upper and lower sides of the bracket 4, two slide bars 6 are fixedly installed between the two support plates 5, three sleeves 7 are movably sleeved on the two slide bars 6, connecting rods 8 are fixedly installed between the three sleeves 7 on the two slide bars 6, screws 9 are movably inserted in the middle of the three connecting rods 8, the three connecting rods 8 are respectively threadedly connected with the three screws 9, three abutting rods 10 are fixedly installed between the two slide bars 6, one ends of the three screws 9 are movably abutted on the upper sides of the three abutting rods 10, a mounting frame 11 is fixedly installed on one side of the three connecting rods 8, and a heating tube 12 is fixedly installed on the three mounting frames 11.

[0031] The distances between the three connecting rods 8 are equal, and a turntable is installed on the upper side of the three screws 9. The box body 1 is respectively provided with an inlet 2 and an outlet 3. Two first hinges 39 are fixedly installed on one side of the box body 1, and the box body 1 is hinged with a front door 41 through the two first hinges 39. Two second hinges 40 are fixedly installed on the other side of the box body 1, and the box body 1 is hinged with a rear door 42 through the two second hinges 40.

[0032] Two first mounting rods 17 are fixedly installed inside the bracket 4, and three first bearing columns 19 are fixedly installed on the two first mounting rods 17. The first bearing column 19 in the middle of the three first bearing columns 19 on the two first mounting rods 17 and the upper and lower first bearing columns 19 are respectively installed on the opposite sides of the two first mounting rods 17. The horizontal distances between the three first bearing columns 19 on the two first mounting rods 17 are equal. Rollers 21 are movably inserted on the three first bearing columns 19, and rollers 22 are fixedly sleeved at one end of the six rollers 21. Mesh belts 23 are movably connected between the six rollers 22, and the material of the mesh belts 23 is made of stainless steel.

[0033] Two mounting seats 13 are fixedly installed on the upper and lower sides of the bracket 4, respectively. The two mounting seats 13 on the upper side of the bracket 4 correspond to the two mounting seats 13 on the lower side of the bracket 4, respectively. Two studs 14 are fixedly installed on one side of the four mounting seats 13. The two studs 14 on the four mounting seats 13 are movably connected with a pressure plate 15, and the two studs 14 on the four mounting seats 13 are threadedly connected with nuts 16.

[0034] Two second mounting rods 18 are provided on the bracket 4, and the upper and lower ends of the two second mounting rods 18 are respectively clamped between the two mounting seats 13 and the two pressure plates 15 on the upper and lower sides of the bracket 4, and three second bearing columns 20 are fixedly installed on the two second mounting rods 18. The second bearing column 20 in the middle of the three second bearing columns 20 on the two second mounting rods 18 and the upper and lower second bearing columns 20 are respectively installed on the opposite sides of the two second mounting rods 18, and the horizontal distances between the three second bearing columns 20 on the two second mounting rods 18 are equal. One ends of the six roller shafts 21 are respectively movably inserted into the inside of the six second bearing columns 20, and one ends of the six roller shafts 21 are fixedly sleeved with rings 32, and the six rings 32 are respectively movably abutted against one side of the six second bearing columns 20.

[0035] Six first support rods 24 are fixedly installed on one side of the two first mounting rods 17, and one end of the six first support rods 24 on the two first mounting rods 17 is provided with a first clamping groove 26. The six first support rods 24 on the two first mounting rods 17 correspond to each other, and a first guide plate 30 is arranged between the six first support rods 24 on the two first mounting rods 17. First clamping plates 28 are fixedly installed on both ends of the six first guide plates 30. The first clamping plates 28 at both ends of the six first guide plates 30 are respectively movably clamped in the first clamping groove 26 opened at one end of the six first support rods 24 on the two first mounting rods 17, and the positions of the six first guide plates 30 are respectively arranged on the upper and lower sides of the three mesh belts 23.

[0036] Six second support rods 25 are fixedly installed on one side of the two second mounting rods 18, and a second clamping groove 27 is opened at one end of the six second support rods 25 on the two second mounting rods 18. The six second support rods 25 on the two second mounting rods 18 correspond to each other. A second guide plate 31 is arranged between the six second support rods 25 on the two second mounting rods 18, and second clamping plates 29 are fixedly installed at both ends of the six second guide plates 31. The second clamping plates 29 at both ends of the six second guide plates 31 are respectively movably clamped in the second clamping groove 27 opened at one end of the six second support rods 25 on the two second mounting rods 18. The positions of the six second guide plates 31 are respectively arranged on the upper and lower sides of the three mesh belts 23.

[0037] Connecting frames 33 are fixedly installed on opposite sides of the interior of the bracket 4, and arc-shaped baffles 34 are fixedly installed on one side of the two connecting frames 33. The positions of the two arc-shaped baffles 34 correspond to one side of the upper mesh belt 23 and the lower mesh belt 23 among the three mesh belts 23 respectively.

[0038] Three reducers 35 are fixedly installed on one side of the box body 1, and transmission shafts 36 are movably inserted on the three reducers 35. One ends of the three transmission shafts 36 are movably inserted in the interior of the box body 1, and one ends of the three transmission shafts 36 are respectively fixedly connected to three of the six roller shafts 21. Motors 37 are fixedly installed on the lower sides of the six reducers 35. Motor shafts are arranged inside the three motors 37. The three motor shafts are movably inserted in the interiors of the three reducers 35. Gear sets are arranged inside the three reducers 35. The three motor shafts are respectively connected to the three transmission shafts 36 through the gear sets. A controller 38 is fixedly installed on one side of the box body 1, and the controller 38 is electrically connected to the three heating tubes 12 and the three motors 37, respectively.

[0039] It should be noted that the utility model is a rotary tunnel oven. Before use, first, place the device on a horizontal ground, and install the conveyor belt into the feed port 2 and the discharge port 3 provided on the device, then electrically connect the controller 38 to the external power supply, and then adjust the distance between the three heating tubes 12 and the mesh belt 23 as required. The user can open the two rear box doors 42, and then the user can respectively turn the turntables on the three screws 9, and the rotation of the three screws 9 will respectively drive the positions of the three connecting rods 8 to move, and then the three connecting rods 8 will respectively drive the three mounting frames 11 and the heating tubes 12 installed on the three mounting frames 11 to move, and drive the distance between the three heating tubes 12 and the mesh belt 23 to be adjusted to the required distance, and the user can respectively stop turning the turntables on the three screws 9 and close the two rear box doors 42, and then the user can The three heating tubes 12 and the three motors 37 are energized by the control controller 38. After the three heating tubes 12 are energized, they will start to generate heat, and then preheat the inside of the box body 1 until the three heating tubes 12 fully reach the required temperature. The three heating tubes 12 bake the food by heat radiation. After the three motors 37 are energized, the motor shafts of the three motors 37 will rotate, and then the three motor shafts will respectively drive the three transmission shafts 36 to rotate through the gear sets. The three transmission shafts 36 will drive the roller shafts 21 connected thereto to rotate, and then drive the rollers 22 and the mesh belts 23 to rotate. The uppermost mesh belt 23 of the three mesh belts 23 will be transported in the direction of the position where the material outlet 3 is located, the middle mesh belt 23 of the three mesh belts 23 will be transported in the opposite direction of the position where the material outlet 3 is located, and the lowermost mesh belt 23 of the three mesh belts 23 will be transported in the direction of the position where the material outlet 3 is located;

[0040] The food is then transported to the conveyor belt 23 at the outlet 3, and then the food is transported to the outlet 3, and then the food is transported to the conveyor belt 23 at ...

[0041] When the device needs maintenance and cleaning after use, the user opens the two front box doors 41, then lifts up the six second guide plates 31 respectively, so that the second clamping plates 29 installed on the second guide plates 31 are disconnected from the second clamping grooves 27, and then removes the six second guide plates 31 respectively. Then the user needs to respectively unscrew the eight nuts 16 and remove the four pressure plates 15 from the studs 14 respectively. After that, the user can move the two second mounting rods 18 to positions opposite to the positions of the four mounting seats 13. During this process, the six second bearing columns 20 will be disconnected from the six roller shafts 21 respectively. Then the user can respectively remove the three mesh belts 23 from one side of the six rollers 22. Then the user can directly maintain and clean the three mesh belts 23 and the six second guide plates 31. In addition, since the three mesh belts 23 and the six second guide plates 31 are removed from the box body 1, it is also more convenient for the user to maintain and clean the inside of the box body 1.

[0042] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A rotary tunnel oven, comprising a housing (1), characterized in that: A bracket (4) is fixedly installed inside the box body (1), and a support plate (5) is fixedly installed on the upper and lower sides of the bracket (4). Two sliding rods (6) are fixedly installed between the two support plates (5). Three sleeves (7) are movably sleeved on the two sliding rods (6). Connecting rods (8) are fixedly installed between the three sleeves (7) on the two sliding rods (6). Screws (9) are movably inserted in the middle of the three connecting rods (8). The three connecting rods (8) are respectively threadedly connected to the three screws (9). Three abutting rods (10) are fixedly installed between the two sliding rods (6), and one end of the three screws (9) is movably abutted against the upper side of the three abutting rods (10). A mounting frame (11) is fixedly installed on one side of the three connecting rods (8), and a heating tube (12) is fixedly installed on the three mounting frames (11).

2. A rotary tunnel oven according to claim 1, characterized in that: The three connecting rods (8) are spaced at equal distances from each other, a turntable is installed on the upper side of each of the three screw rods (9), an inlet (2) and an outlet (3) are respectively provided on the box body (1), two first hinges (39) are fixedly installed on one side of the box body (1), and the box body (1) is hinged with a front door (41) through the two first hinges (39), and two second hinges (40) are fixedly installed on the other side of the box body (1), and the box body (1) is hinged with a rear door (42) through the two second hinges (40).

3. The rotary tunnel oven according to claim 1, characterized in that: Two first mounting rods (17) are fixedly installed inside the bracket (4), and three first bearing columns (19) are fixedly installed on the two first mounting rods (17). The middle first bearing column (19) and the upper and lower first bearing columns (19) of the three first bearing columns (19) on the two first mounting rods (17) are respectively installed on opposite sides of the two first mounting rods (17), and the horizontal distances between the three first bearing columns (19) on the two first mounting rods (17) are equal. Rollers (21) are movably inserted on the three first bearing columns (19), and one end of the six rollers (21) is fixedly sleeved with rollers (22), and mesh belts (23) are movably connected between the six rollers (22).

4. A rotary tunnel oven according to claim 3, characterized in that: Two mounting seats (13) are fixedly mounted on the upper and lower sides of the bracket (4), respectively; the two mounting seats (13) on the upper side of the bracket (4) correspond to the two mounting seats (13) on the lower side of the bracket (4), respectively; two studs (14) are fixedly mounted on one side of the four mounting seats (13); the two studs (14) on the four mounting seats (13) are movably plugged with a pressure plate (15); and the two studs (14) on the four mounting seats (13) are threadedly connected with a nut (16).

5. The rotary tunnel oven according to claim 4, characterized in that: Two second mounting rods (18) are arranged on the bracket (4), and the upper ends and lower ends of the two second mounting rods (18) are respectively clamped between the two mounting seats (13) and the two pressure plates (15) on the upper and lower sides of the bracket (4). Three second bearing columns (20) are fixedly mounted on the two second mounting rods (18). The middle second bearing column (20) and the upper and lower second bearing columns (20) of the three second bearing columns (20) on the two second mounting rods (18) are respectively mounted on opposite sides of the two second mounting rods (18). The horizontal distances between the three second bearing columns (20) on the two second mounting rods (18) are equal. One ends of the six roller shafts (21) are respectively movably inserted into the inside of the six second bearing columns (20), and one ends of the six roller shafts (21) are respectively fixedly sleeved with a ring (32), and the six rings (32) are respectively movably abutted against one side of the six second bearing columns (20).

6. The rotary tunnel oven according to claim 5, characterized in that: Six first support rods (24) are fixedly mounted on one side of the two first mounting rods (17), one end of the six first support rods (24) on the two first mounting rods (17) are provided with a first clamping groove (26), the six first support rods (24) on the two first mounting rods (17) correspond to each other, a first guide plate (30) is arranged between the six first support rods (24) on the two first mounting rods (17), both ends of the six first guide plates (30) are fixedly mounted with a first clamping plate (28), the first clamping plates (28) at both ends of the six first guide plates (30) are respectively movably clamped in the first clamping groove (26) provided at one end of the six first support rods (24) on the two first mounting rods (17), and the positions of the six first guide plates (30) are respectively arranged on the upper and lower sides of the three mesh belts (23).

7. The rotary tunnel oven according to claim 6, characterized in that: Six second support rods (25) are fixedly mounted on one side of the two second mounting rods (18); one end of the six second support rods (25) on the two second mounting rods (18) is provided with a second clamping groove (27); the six second support rods (25) on the two second mounting rods (18) correspond to each other; a second guide plate (31) is arranged between the six second support rods (25) on the two second mounting rods (18); second clamping plates (29) are fixedly mounted on both ends of the six second guide plates (31); the second clamping plates (29) at both ends of the six second guide plates (31) are respectively movably clamped in the second clamping grooves (27) provided at one end of the six second support rods (25) on the two second mounting rods (18); the six second guide plates (31) are respectively arranged on the upper and lower sides of the three mesh belts (23).

8. The rotary tunnel oven according to claim 7, characterized in that: Connecting frames (33) are fixedly mounted on opposite sides of the interior of the bracket (4), and arc-shaped baffles (34) are fixedly mounted on one side of the two connecting frames (33), and the positions of the two arc-shaped baffles (34) respectively correspond to one side of the upper mesh belt (23) and the lower mesh belt (23) among the three mesh belts (23).

9. The rotary tunnel oven according to claim 5, characterized in that: Three reducers (35) are fixedly mounted on one side of the housing (1), and transmission shafts (36) are movably plugged into the three reducers (35). One end of the three transmission shafts (36) is movably plugged into the interior of the housing (1), and one end of the three transmission shafts (36) is fixedly connected to three of the six roller shafts (21). Motors (37) are fixedly mounted on the lower sides of the six reducers (35), and motor shafts are arranged inside the three motors (37). The three motor shafts are movably plugged into the interior of the three reducers (35). Gear sets are arranged inside the three reducers (35), and the three motor shafts are connected to the three transmission shafts (36) through the gear sets. A controller (38) is fixedly mounted on one side of the housing (1), and the controller (38) is electrically connected to the three heating tubes (12) and the three motors (37).

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