Tunnel type oven

Abstract

The utility model relates to the technical field of baking equipment, and discloses a tunnel type oven which comprises an oven box, the left side and the right side of the oven box are fixedly connected with mounting frames, conveying belts are installed in the two mounting frames, a plurality of holes are formed in the outer walls of the conveying belts, and a heat conduction plate is fixedly connected to the top of the inner wall of the oven box. Heaters are fixedly connected to the left side and the right side of the top of the furnace box, one ends of the two heaters penetrate through the top of the furnace box and communicate with heat conduction pipes, and a plurality of first connecting pipes communicate with the front side and the rear side of the furnace box. According to the pastry baking oven, the heater at the top of the oven box is started to heat the heat conduction pipe, the heat conduction plate absorbs emitted heat, and therefore the heat is evenly baked on the outer surfaces of pastries, and meanwhile the exhaust fan is started to suck hot air in the heat conduction plate into the exhaust pipe through the first connecting pipe; and the bottoms of the pastries are further baked through a plurality of exhaust hoods, so that the baking comprehensiveness is improved.

Description

Technical Field

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

[0002] Tunnel ovens are widely used in the food processing industry for baking bread, pastry food products. Their efficient and uniform heating method makes the baked food have a better taste and appearance. The internal temperature of the tunnel oven can be precisely controlled to ensure that each batch of baked food can meet the consistent quality standards.

[0003] After retrieval, the Chinese patent publication number is: CN213523630U, which discloses a tunnel type pastry baking oven, including a furnace body and multiple legs. The furnace body is rectangular and has a cavity structure inside. The furnace body is installed on multiple legs, and furnace doors are connected to both sides of the furnace body; two side plates are arranged along the length direction inside the cavity structure, and both ends of these two side plates extend to the outside of the furnace body respectively. A pulley is arranged between the left and right ends of the two side plates respectively. One of the pulleys is connected to a conveying motor, and the conveying motor is fixedly installed on the side plate. The beneficial effects are as follows: The device can solve the problems of less heat at the bottom of the baking oven and low heat utilization rate by extracting the heat source at the top inside the baking oven through an air extraction device, filtering it, and sending it to the bottom inside the baking oven; the problem of uneven heat inside the baking oven can be solved by arranging heating wires before and after and on the top surface inside the oven, so as to change the baking quality of pastries; by arranging a cleaning device at the bottom of the pastry outlet, the stainless steel mesh belt can be effectively cleaned, thereby improving the production environment. However, the traditional tunnel oven has the situation of uneven heating, resulting in inconsistent baking quality of food and causing waste of energy. Therefore, a tunnel oven is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a tunnel oven, aiming to improve the problem of uneven heating in the traditional tunnel oven in the prior art, which leads to inconsistent baking quality of food.

[0005] To achieve the above object, the utility model adopts the following technical solutions: a tunnel oven, including an oven chamber, mounting frames are fixedly connected to both the left and right sides of the oven chamber, conveyor belts are installed inside both of the mounting frames, a plurality of holes are formed in the outer walls of the conveyor belts, a heat conducting plate is fixedly connected to the top of the inner wall of the oven chamber, heaters are fixedly connected to both the left and right sides of the top of the oven chamber, one ends of both of the heaters penetrate through the top of the oven chamber and communicate with heat conducting pipes, a plurality of first connecting pipes are communicated with both the front and rear sides of the oven chamber, the bottom ends of the plurality of first connecting pipes are communicated with a second connecting pipe, the adjacent ends of both of the second connecting pipes are communicated with an exhaust fan, one ends of both of the exhaust fans penetrate through the front and rear sides of the oven chamber and communicate with exhaust pipes, a plurality of exhaust hoods are communicated with the top ends of both of the exhaust pipes, and a cleaning mechanism is arranged on the right side of the oven chamber.

[0006] Through the above technical solutions: the heat conducting plate surrounds the top and the left and right sides of the inner wall of the oven chamber. By starting the heater to heat the heat conducting pipe, the heat conducting plate absorbs the emitted heat, so as to bake it evenly on the surface of the pastry. At the same time, the exhaust fan is started to suck the hot air inside the heat conducting plate into the exhaust pipe, and the bottom of the pastry is further baked through a plurality of exhaust hoods, improving the comprehensiveness of baking.

[0007] As a further description of the above technical solutions:

[0008] The cleaning mechanism includes two mounting plates, the left sides of both of the mounting plates are fixedly connected to the right side of the oven chamber, connecting rods are slidably connected to the bottoms of both of the mounting plates, the top ends of both of the connecting rods penetrate through the bottoms of the mounting plates and are fixedly connected with cleaning brushes, springs are fixedly connected to the outer walls of both of the connecting rods, and a cleaning groove is formed at the bottom of the right mounting frame.

[0009] Through the above technical solutions: with the continuous movement of the conveyor belt, and at the same time, under the action of the spring, the cleaning brush is closely attached to the bottom wall of the conveyor belt, so as to clean the residues on the surface of the conveyor belt and prevent the residues from breeding bacteria.

[0010] As a further description of the above technical solutions:

[0011] A support frame is fixedly connected to the bottom of the oven chamber, and a plurality of rubber pads are fixedly connected to the bottom ends of the support frame.

[0012] Through the above technical solutions: the whole oven chamber is supported and fixed by the support frame, improving the firmness and stability of the oven chamber.

[0013] As a further description of the above technical solutions:

[0014] The cleaning mechanism further includes a collection box, the bottom of the collection box is arranged on the top right side of the support frame, and buckling grooves are formed on both the left and right sides of the collection box.

[0015] Through the above technical solution: The collection box is used to collect and store the scraped debris, which is convenient for later processing.

[0016] As a further description of the above technical solution:

[0017] A plurality of heat dissipation openings are communicated with the top of the furnace box, a plurality of observation windows are fixedly connected to the front side of the furnace box, and bolts are threadedly connected to the front sides of the plurality of observation windows.

[0018] Through the above technical solution: When the furnace box is no longer in use, rapid heat dissipation treatment can be carried out through the heat dissipation openings at the top of the furnace box.

[0019] As a further description of the above technical solution:

[0020] A control box is fixedly connected to the front side of the support frame, and the control box is electrically connected to the conveyor belt, the heater and the exhaust fan respectively.

[0021] Through the above technical solution: The control box facilitates the simple operation and control of the operating equipment on the entire device.

[0022] As a further description of the above technical solution:

[0023] A placement plate is fixedly connected to the front side of the support frame, and the top of the placement plate is fixedly connected to the bottom of the control box.

[0024] Through the above technical solution: The control box is supported and fixed by the placement plate, improving the firmness and stability of the control box.

[0025] As a further description of the above technical solution:

[0026] Sealing plates are rotatably connected to both the left and right sides of the furnace box, and handles are rotatably connected to the remote sides of the two sealing plates.

[0027] Through the above technical solution: The two sides of the furnace box are sealed by the sealing plates to prevent heat loss.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the present utility model, a conveyor belt is used to convey and place multiple pastries, moving them into the interior of the oven chamber. The heat conducting plates surround the inner walls of the oven chamber. By activating the heater at the top of the oven chamber to heat the heat conducting pipes, the heat conducting plates absorb the emitted heat, thereby evenly baking the surface of the pastries. At the same time, the exhaust fan is activated to suck the hot air inside the heat conducting plates through the first connecting pipe into the exhaust duct, and further bake the bottom of the pastries through multiple exhaust hoods, improving the comprehensiveness of baking.

[0030] 2. In the present utility model, the mounting plate and the connecting rod are slidably connected to each other. The cleaning brush passes through the cleaning groove and fits against the surface of the conveyor belt. At the same time, under the action of the spring, the cleaning brush closely adheres to the outer wall of the conveyor belt for cleaning, and collects the cleaned debris through the collection box, thereby reducing the cleaning of the conveyor belt and greatly improving the baking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a three-dimensional view of the tunnel oven proposed by the present utility model;

[0032] Figure 2 is a front view of the tunnel oven proposed by the present utility model;

[0033] Figure 3 is an exploded view of the tunnel oven proposed by the present utility model;

[0034] Figure 4 is a partial structural schematic diagram of the tunnel oven proposed by the present utility model;

[0035] Figure 5 is an exploded view of the tunnel oven proposed by the present utility model.

[0036] LEGEND DESCRIPTION:

[0037] 1. Oven chamber; 2. Cleaning mechanism; 201. Mounting plate; 202. Connecting rod; 203. Cleaning brush; 204. Spring; 205. Cleaning groove; 206. Collection box; 207. Buckle groove; 3. Mounting frame; 4. Conveyor belt; 5. Hole; 6. Heat conducting plate; 7. Heater; 8. Heat conducting pipe; 9. First connecting pipe; 10. Second connecting pipe; 11. Exhaust fan; 12. Exhaust duct; 13. Exhaust hood; 14. Heat dissipation port; 15. Observation window; 16. Bolt; 17. Sealing plate; 18. Handle; 19. Support frame; 20. Rubber pad; 21. Placing plate; 22. Control box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Referring to Figure 1 、 Figure 3 and Figure 5 , an embodiment provided by the present invention: a tunnel oven, comprising an oven box 1. Mounting frames 3 are fixedly connected to both the left and right sides of the oven box 1. Transmission belts 4 are installed inside both of the two mounting frames 3. A plurality of holes 5 are formed in the outer walls of the transmission belts 4. A heat conduction plate 6 is fixedly connected to the top inner wall of the oven box 1. Heaters 7 are fixedly connected to both the left and right sides of the top of the oven box 1. One end of each of the two heaters 7 penetrates through the top of the oven box 1 and is communicated with a heat conduction pipe 8. A plurality of first connecting pipes 9 are communicated with both the front and rear sides of the oven box 1. The bottom ends of the plurality of first connecting pipes 9 are all communicated with a second connecting pipe 10. The adjacent ends of the two second connecting pipes 10 are communicated with an exhaust fan 11. One end of each of the two exhaust fans 11 penetrates through the front and rear sides of the oven box 1 and is communicated with an exhaust pipe 12. The top ends of the two exhaust pipes 12 are all communicated with a plurality of exhaust hoods 13. A cleaning mechanism 2 is arranged on the right side of the oven box 1. A support frame 19 is fixedly connected to the bottom of the oven box 1. A plurality of rubber pads 20 are fixedly connected to the bottom ends of the support frame 19. Sealing plates 17 are rotatably connected to both the left and right sides of the oven box 1. Handles 18 are rotatably connected to the sides away from each other of the two sealing plates 17. A plurality of heat dissipation openings 14 are communicated with the top of the oven box 1;

[0040] Specifically, mounting brackets 3 are fixedly installed on both the left and right sides of the furnace chamber 1. The mounting brackets 3 are used to install and connect with the conveyor belt 4. A plurality of holes 5 are evenly opened on the outer wall of the conveyor belt 4 to facilitate heat transfer and food baking. A heat conducting plate 6 is fixedly installed on the top of the inner wall of the furnace chamber 1. The heat conducting plate 6 can effectively distribute heat evenly throughout the furnace chamber. At the same time, heaters 7 are fixedly connected to both the left and right sides of the top of the furnace chamber 1. One end of the heater 7 penetrates through the top of the furnace chamber 1 and is connected to the inside of the furnace chamber 1 through a heat conducting pipe 8 to ensure that heat can be effectively transferred to the inside of the furnace chamber 1. In addition, a plurality of first connecting pipes 9 are connected to both the front and rear sides of the furnace chamber 1. The bottom ends of these first connecting pipes 9 are all connected to a second connecting pipe 10. The adjacent ends of the second connecting pipe 10 are all connected to an exhaust fan 11. One end of the exhaust fan 11 penetrates through the front and rear sides of the furnace chamber 1 and is connected to an exhaust pipe 12. The top end of the exhaust pipe 12 is connected to a plurality of exhaust hoods 13. The exhaust hoods 13 can effectively discharge the hot air inside the furnace chamber 1 back through the bottom inside of the furnace chamber 1 to ensure comprehensive baking of pastries. A support frame 19 is fixed at the bottom of the furnace chamber 1. The cooperation of the support frame 19 and the rubber pad 20 at the bottom end can effectively reduce the vibration and noise generated during the operation of the oven, and also protect the ground from damage. To ensure the sealing performance of the inside of the furnace chamber 1, sealing plates 17 are rotatably connected to both the left and right sides of the furnace chamber 1. Handles 18 are rotatably connected to the far sides of the sealing plates 17. Operators can easily open or close the sealing plates through these handles 17. A plurality of heat dissipation openings 14 are evenly connected to the top of the furnace chamber 1. The heat dissipation openings 14 can effectively discharge the heat inside the furnace chamber 1 to prevent the furnace chamber 1 from overheating and ensure the safe and stable operation of the oven.

[0041] Referring to Figure 4 , the cleaning mechanism 2 includes two mounting plates 201. The left sides of the two mounting plates 201 are fixedly connected to the right side of the furnace chamber 1. The bottom of each of the two mounting plates 201 is slidably connected with a connecting rod 202. The top ends of the two connecting rods 202 penetrate through the bottom of the mounting plate 201 and are fixedly connected with a cleaning brush 203. Springs 204 are fixedly connected to the outer walls of the two connecting rods 202. A cleaning groove 205 is opened at the bottom of the right mounting bracket 3. The cleaning mechanism 2 further includes a collection box 206. The bottom of the collection box 206 is arranged on the top right side of the support frame 19. Buckle grooves 207 are opened on both the left and right sides of the collection box 206;

[0042] Specifically, a mounting plate 201 is installed at the right bottom of the furnace chamber 1, and the bottom of the mounting plate 201 is slidably connected to the connecting rod 202; meanwhile, the top of the connecting rod 202 penetrates through the bottom of the mounting plate 201 and is fixedly connected to the cleaning brush 203. To ensure that the connecting rod 202 can maintain appropriate tension during use, a spring 204 is fixedly connected to the outer wall of each connecting rod 202. The spring 204 can provide a certain elastic force when the connecting rod 202 is subjected to an external force, so as to ensure that the cleaning brush 203 can closely adhere to the outer wall of the conveyor belt 4 for cleaning treatment.

[0043] Refer to Figure 1 and Figure 2 On the front side of the furnace chamber 1, a plurality of observation windows 15 are fixedly connected. On the front side of the plurality of observation windows 15, bolts 16 are threadedly connected. On the front side of the support frame 19, a control box 22 is fixedly connected. The control box 22 is electrically connected to the conveyor belt 4, the heater 7, and the exhaust fan 11 respectively. On the front side of the support frame 19, a placement plate 21 is fixedly connected, and the top of the placement plate 21 is fixedly connected to the bottom of the control box 22;

[0044] Specifically, a plurality of observation windows 15 are evenly installed in the front end area of the furnace chamber 1. The front end of the observation window 15 is firmly connected by threading with a number of bolts 16. At the front end part of the support frame 19, a control box 22 is fixedly installed. The control box 22 is connected to the conveyor belt 4, the heater 7, and the exhaust fan 11 respectively, facilitating simple operation control of these devices.

[0045] Working principle: First, a conveyor belt 4 is used to convey and place multiple pastries, moving them into the interior of the oven chamber 1. After closing the sealing plate 17, it ensures that the internal heat will not quickly escape. A heat conducting plate 6 is installed on the inner wall of the oven chamber 1. The heat conducting plate 6 surrounds the top and the left and right sides of the inner wall of the oven chamber 1. By starting the heater at the top of the oven chamber 1 to heat the heat conducting tube 8, the heat conducting plate 6 absorbs the dissipated heat, so as to evenly bake the outer surface of the pastries. At the same time, start the exhaust fan 11 on the front side of the oven chamber 1 to suck the hot air inside the heat conducting plate 6 into the exhaust duct 12 through the connecting pipe 9. The exhaust duct 12 is communicated with multiple exhaust hoods 13. The bottom of the conveyor belt 4 is exhausted through the multiple exhaust hoods 13, and the bottom of the pastries is further baked through the holes 5 on the conveyor belt 4 to improve the comprehensiveness of baking. And the mounting plate 201 and the connecting rod 202 are slidably connected to each other. The top end of the connecting rod 202 is fixedly installed with a cleaning brush 203. The cleaning brush 203 passes through the cleaning groove 205 and fits with the surface of the conveyor belt 4. At the same time, due to the tension of the spring 204, the cleaning brush 203 can closely adhere to the outer wall of the conveyor belt 4 for cleaning, and the debris cleaned is collected by the collection box 206. The staff can easily remove the collection box 206 from the top of the support frame 19 for cleaning and garbage dumping, so as to ensure that the cleaning mechanism 2 can work continuously and efficiently.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Tunnel oven, comprising an oven chamber (1), characterized in that: On both the left and right sides of the furnace chamber (1), there are fixedly connected mounting frames (3). Inside both of the mounting frames (3), there are installed conveyor belts (4). On the outer walls of the conveyor belts (4), there are provided multiple holes (5). On the top inner wall of the furnace chamber (1), there is fixedly connected a heat conducting plate (6). On the left and right sides of the top of the furnace chamber (1), there are fixedly connected heaters (7). One end of each of the two heaters (7) penetrates through the top of the furnace chamber (1) and is communicated with a heat conducting pipe (8). On the front and back sides of the furnace chamber (1), there are communicated with multiple first connecting pipes (9). The bottom ends of the multiple first connecting pipes (9) are all communicated with a second connecting pipe (10). The adjacent ends of the two second connecting pipes (10) are all communicated with an exhaust fan (11). One end of each of the two exhaust fans (11) penetrates through the front and back sides of the furnace chamber (1) and is communicated with an exhaust duct (12). The top ends of the two exhaust ducts (12) are all communicated with multiple exhaust hoods (13). On the right side of the furnace chamber (1), there is a cleaning mechanism (2).

2. The tunnel furnace according to claim 1, characterized in that: The cleaning mechanism (2) includes two mounting plates (201). On the left side of each of the two mounting plates (201), it is fixedly connected to the right side of the furnace chamber (1). At the bottom of each of the two mounting plates (201), there is a sliding connection with a connecting rod (202). The top ends of the two connecting rods (202) penetrate through the bottom of the mounting plate (201) and are fixedly connected with a cleaning brush (203). On the outer walls of the two connecting rods (202), there are fixedly connected springs (204). On the bottom of the right mounting frame (3), there is a cleaning groove (205).

3. The tunnel oven according to claim 1, characterized in that: At the bottom of the furnace chamber (1), there is fixedly connected a support frame (19). At the bottom ends of the support frame (19), there are fixedly connected multiple rubber pads (20).

4. The tunnel oven according to claim 2, characterized in that: The cleaning mechanism (2) further includes a collection box (206). The bottom of the collection box (206) is arranged on the top right side of the support frame (19). On the left and right sides of the collection box (206), there are provided buckling grooves (207).

5. The tunnel oven according to claim 1, characterized in that: On the top of the furnace chamber (1), there are communicated with multiple heat dissipation openings (14). On the front side of the furnace chamber (1), there are fixedly connected multiple observation windows (15). On the front side of the multiple observation windows (15), there are screwed bolts (16).

6. The tunnel furnace according to claim 3, characterized in that: On the front side of the support frame (19), there is fixedly connected a control box (22). The control box (22) is electrically connected to the conveyor belt (4), the heater (7), and the exhaust fan (11) respectively.

7. The tunnel furnace according to claim 3, characterized in that: On the front side of the support frame (19), there is fixedly connected a placement plate (21). The top of the placement plate (21) is fixedly connected to the bottom of the control box (22).

8. The tunnel oven according to claim 1, characterized in that: On both the left and right sides of the furnace chamber (1), there are rotatably connected sealing plates (17). On the far - away sides of the two sealing plates (17), there are rotatably connected handles (18).

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