A vertical lifting and conveying mechanism and a baking furnace using the same

Abstract

The present invention relates to the technical field of material conveying, and particularly relates to a vertical lifting and transmission mechanism and an applied baking furnace, which comprises a bracket, on which a first conveyor belt and a second conveyor belt are vertically installed. The invention further comprises a material deflecting assembly, which includes a fixed seat arranged on the first conveyor belt and a deflecting grille plate rotatably connected to the fixed seat. A limiting gear is elastically installed in the fixed seat, and a movable grille for changing the position of the limiting gear is slidably installed in the deflecting grille plate. The invention also includes an auxiliary cleaning assembly, which includes a reciprocating air inflation part and a blowing frame communicating with each other. The reciprocating air inflation part is drivingly connected to the first conveyor belt through a transmission component. The blowing frame is provided with blowing strips and a movable pressing plate elastically installed on the blowing frame and cooperating with the fixed strips. The blowing strips are opened after the movable pressing plate is extruded by the fixed strips. The present invention can reduce the retention of materials, lower the probability of material retention, and improve the overall production quality and efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of material transportation, and particularly to a vertical lifting and conveying mechanism and an applied baking oven. Background Art

[0002] A baking and conveying mechanism is a device specifically designed to convey and process materials during the baking process.

[0003] In the secondary processing of crops (such as peanuts), especially during the deep-frying process of peanut foods, a key step is to bake the cooked peanuts before deep-frying to remove some or most of the moisture on and inside their surfaces. This step is crucial for ensuring that the deep-fried peanut foods have a crispy texture and excellent quality.

[0004] However, in actual operation, due to the wet and somewhat adhesive surface of the cooked peanuts, when using the conveying mechanism to convey materials, the peanuts may not be imported onto the conveyor belt in a timely or complete manner. These peanuts that fail to smoothly enter the conveyor belt may stay in various corners and gaps of the conveying mechanism, forming so-called "stagnant materials". These peanuts that have been stagnant on the conveying mechanism for a long time are extremely likely to deteriorate due to being in a relatively enclosed, non-ventilated environment that may also have residual heat, thus seriously affecting the overall production quality. Summary of the Invention

[0005] In view of the above-mentioned drawbacks of the prior art, the present invention provides a vertical lifting and conveying mechanism and an applied baking oven, which can effectively solve the problem in the prior art that materials are likely to stay on the conveying mechanism and cannot be cleaned in time, resulting in deterioration and affecting the production quality.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0007] The present invention provides a vertical lifting and conveying mechanism, including a bracket. A first conveyor belt is vertically installed on the bracket, and a second conveyor belt is horizontally installed. The mechanism further includes:

[0008] A material pushing component for pushing materials. The material pushing component includes a fixed seat arranged on the first conveyor belt and a material pushing grid plate rotatably connected to the fixed seat. A limit gear is elastically installed in the fixed seat, and a movable grid for changing the position of the limit gear is slidably installed in the material pushing grid plate. When the movable grid moves towards the fixed seat, it squeezes the limit gear to separate from the material pushing grid plate, canceling the limitation between the material pushing grid plate and the fixed seat. Conversely, it restricts the relative rotation between the material pushing grid plate and the fixed seat.

[0009] Auxiliary cleaning component, the auxiliary cleaning component includes a reciprocating inflation part and a blowing frame that are interconnected. The reciprocating inflation part is drivingly connected to the first conveyor belt through a transmission component. The blowing frame is provided with a blowing strip and a movable pressing plate that is elastically mounted on the blowing frame and cooperates with a fixed strip. The blowing strip is opened after the movable pressing plate is squeezed by the fixed strip.

[0010] Furthermore, the first conveyor belt is arranged on the bracket through a driving roller, and the driving roller is provided with a strip-shaped groove. A fixed strip is arranged on the inner side of the first conveyor belt. There are multiple groups of the material pushing components and they are equidistantly distributed on the first conveyor belt. There are multiple groups of the fixed strips and they correspond to the material pushing components. Moreover, the distance between adjacent fixed strips is the same as the distance between adjacent strip-shaped grooves on the driving roller.

[0011] Furthermore, the limiting gear is rotatably arranged on the fixed seat through a rotating shaft, and a spring is arranged between the limiting gear and the fixed seat. A limiting guide bar that is slidably connected to the material pushing grid plate is arranged on the side of the limiting gear away from the fixed seat.

[0012] Furthermore, the limiting guide bar is rectangular, and a limiting tooth groove is correspondingly arranged on the side of the material pushing grid plate close to the limiting gear. A pressing strip that cooperates with the limiting guide bar is arranged at the bottom of the movable grid. When the pressing strip squeezes the limiting guide bar, it pushes the limiting gear to disengage from the limiting tooth groove and retract into the fixed seat. At this time, the restriction on the material pushing grid plate and the fixed seat is cancelled, and the material pushing grid plate and the fixed seat can rotate relatively. When the material pushing component moves to the second conveyor belt, it is squeezed into a vertical state by the second conveyor belt until it disengages from the second conveyor belt.

[0013] Furthermore, multiple groups of strip-shaped through holes are arranged on the material pushing grid plate, and multiple groups of strip-shaped through holes are correspondingly arranged on the movable grid. And after the movable grid squeezes the limiting guide bar, the strip-shaped through holes on the material pushing grid plate and the movable grid are communicated. A limiting strip is arranged at the top of the material pushing grid plate. The limiting strip is used to limit the sliding distance between the movable grid and the material pushing grid plate after the material pushing grid plate is tilted, so as to block the strip-shaped through holes on the material pushing grid plate.

[0014] Furthermore, the auxiliary cleaning component further includes a driving gear and a driven gear that are rotatably arranged on the bracket and mesh with each other. One end of the driving gear is connected to the driving roller through a transmission component. An eccentric column is arranged on one side of the driven gear, and the eccentric column is drivingly connected to the reciprocating inflation part.

[0015] Furthermore, a sealing plate for blocking the blowing strip is elastically mounted on the blowing frame. The blowing strip is always misaligned with the blowing strip and blocks the blowing strip in the initial state. The movable pressing plate is elastically mounted on the blowing frame and always faces the inner side of the first conveyor belt. In the initial state, the top of the movable pressing plate contacts the bottom of the sealing plate. After the movable pressing plate is squeezed by the fixed strip, it retracts into the blowing frame and pushes the sealing plate to rise, thereby opening the blowing strip.

[0016] Further, a limiting groove is provided in the fixing seat, and a guide rail is slidably installed in the limiting groove. The guide rail can slide in the limiting groove along the axis of the fixing seat. A slider slidably connected to the guide rail is provided on the limiting gear. Under the matching of the slider and the guide rail, the axial movement of the limiting gear is not affected, and the relative rotation angle between the fixing seat and the material distributing grille plate can be limited.

[0017] A baking oven applying the vertical lifting and conveying mechanism according to any one of the above, the baking oven includes a box body covering the second conveyor belt, and a heating component is provided in the box body, and a hot air circulation component is further provided on the box body.

[0018] Beneficial effects

[0019] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art:

[0020] First, by improving the conveying mechanism, after the material distributing grille plate imports the material onto the second conveyor belt, the restriction on the material distributing grille plate and the fixing seat is cancelled by cooperating with the movable grille. After passing through the second conveyor belt, the material distributing grille plate will cooperate with the second conveyor belt for cleaning, making it more conducive to the sliding and cleaning of the material, reducing the retention of the material, and reducing the probability of material retention.

[0021] Second, during the movement of the first conveyor belt, the transmission component cooperates with the reciprocating air inflation part to inflate the inside of the air blowing frame. When the movable grille and the strip-shaped through holes on the material distributing grille plate are connected and communicated when the material distributing grille plate moves to the second conveyor belt, the air blowing strip is opened to blow air on the movable grille and the material distributing grille plate, assisting in cleaning the retained material attached to the surface of the material distributing grille plate, thereby reducing the risk of material retention again, and improving the overall production quality and efficiency. Description of the drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic diagram of the overall structure from the first perspective of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall structure from the second perspective of the present invention;

[0025] Figure 3 It is a partial cross-sectional view of the material distributing component of the present invention;

[0026] Figure 4Schematic diagram of the auxiliary cleaning component of the present invention;

[0027] Figure 5 Partial cross-sectional view of the air blowing frame of the present invention;

[0028] Figure 6 For the present invention Figure 5 Enlarged view of part A in

[0029] Figure 7 Partial cross-sectional view of the fixing seat of the present invention.

[0030] Reference numerals: 1, bracket; 11, conveyor belt 1; 111, fixing strip; 12, conveyor belt 2; 2, material pushing component; 21, fixing seat; 211, limiting gear; 212, limiting guide bar; 213, limiting groove; 214, guide rail; 215, slider; 22, material pushing grid plate; 221, limiting strip; 222, limiting tooth groove; 223, spring; 23, movable grid; 231, pressing strip; 3, auxiliary cleaning component; 31, transmission component; 32, driving gear; 33, driven gear; 34, reciprocating inflation part; 35, air blowing frame; 351, air blowing strip; 352, movable pressing plate; 353, sealing plate. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. 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.

[0032] The present invention will be further described below with reference to the embodiments.

[0033] Referring to the attached Figure 1-7 , a vertical lifting and conveying mechanism includes a bracket 1, on which a conveyor belt 1 11 is vertically installed and a conveyor belt 2 12 is horizontally installed. A strip plate is provided on the conveyor belt 2 12, and a brush is provided on the strip plate. The conveyor belt 1 11 and the conveyor belt 2 12 are perpendicular to each other in the same horizontal plane. The conveyor belt 1 11 drives the material from a low place to a high place, and then guides it onto the conveyor belt 2 12 and sends it to a baking furnace for processing. The conveyor belt 1 11 is arranged on the bracket 1 through a driving roller, and a strip groove is provided on the driving roller. A fixing strip 111 is provided inside the conveyor belt 1 11. Further included are:

[0034] The material pushing component 2 for pushing materials, there are multiple groups of the material pushing component 2 and they are evenly distributed on the first conveyor belt 11. There are multiple groups of fixing bars 111 which correspond to the material pushing component 2, and the distance between adjacent fixing bars 111 is the same as the distance between adjacent strip-shaped grooves on the driving roller. There are multiple groups of ventilation holes on the first conveyor belt 11, and the aperture of the ventilation holes is smaller than the size of the materials. The material pushing component 2 includes a fixing seat 21 arranged on the first conveyor belt 11 and a material pushing grille plate 22 rotatably connected to the fixing seat 21. A limiting gear 211 is elastically installed in the fixing seat 21. The limiting gear 211 is rotatably arranged on the fixing seat 21 through a rotating shaft, and there is a spring 223 between the limiting gear 211 and the fixing seat 21. On the side of the limiting gear 211 away from the fixing seat 21, there is a limiting guide bar 212 slidably connected to the material pushing grille plate 22. The limiting guide bar 212 is rectangular, and on the side of the material pushing grille plate 22 close to the limiting gear 211, there is a corresponding limiting tooth groove 222. An activity grille 23 for changing the position of the limiting gear 211 is slidably installed in the material pushing grille plate 22. At the bottom of the activity grille 23, there is a pressing strip 231 which cooperates with the limiting guide bar 212. When the pressing strip 231 squeezes the limiting guide bar 212, it pushes the limiting gear 211 to disengage from the limiting tooth groove 222 and retract into the fixing seat 21. At this time, the restriction on the material pushing grille plate 22 and the fixing seat 21 is cancelled, and the material pushing grille plate 22 and the fixing seat 21 can rotate relative to each other. When the material pushing component 2 moves to the second conveyor belt 12, it is squeezed into a vertical state by the second conveyor belt 12 until it disengages from the second conveyor belt 12. By moving the activity grille 23 towards the fixing seat 21 to squeeze the limiting gear 211 to separate from the material pushing grille plate 22, the limitation of the material pushing grille plate 22 and the fixing seat 21 is cancelled, and vice versa to limit the relative rotation of the material pushing grille plate 22 and the fixing seat 21;

[0035] Further, there are multiple groups of strip-shaped through holes on the material pushing grille plate 22, and multiple groups of strip-shaped through holes are correspondingly arranged on the activity grille 23. And after the activity grille 23 squeezes the limiting guide bar 212, the strip-shaped through holes on the material pushing grille plate 22 and the activity grille 23 are connected. A limiting strip 221 is arranged on the top of the material pushing grille plate 22. The limiting strip 221 is used to limit the sliding distance between the activity grille 23 and the material pushing grille plate 22 after the material pushing grille plate 22 is tilted, so as to block the strip-shaped through holes on the material pushing grille plate 22.

[0036] Still further, a limiting groove 213 is arranged in the fixing seat 21, and a guide rail 214 is slidably installed in the limiting groove 213. The guide rail 214 can slide in the limiting groove 213 along the axis of the fixing seat 21. A sliding block 215 slidably connected to the guide rail 214 is arranged on the limiting gear 211. With the matching of the sliding block 215 and the guide rail 214, the axial movement of the limiting gear 211 is not affected, and the relative rotation angle between the fixing seat 21 and the material pushing grille plate 22 can be limited.

[0037] In the above technical solution, the first conveyor belt 11 moves on the bracket 1 and drives the material distributing component 2 to move, so as to convey the material onto the second conveyor belt 12. When the material distributing component 2 moves to the top of the bracket 1, since the material is exported, there is no material extrusion between the material distributing grid plate 22 and the fixed seat 21, and the frictional force between the limit gear 211 and the material distributing grid plate 22 is reduced. At the same time, the movable grid 23 descends in the material distributing grid plate 22 and squeezes the limit guide bar 212, so that the limit gear 211 retracts into the fixed seat 21 and disengages from the limit tooth groove 222. At this time, the restriction between the material distributing grid plate 22 and the fixed seat 21 is cancelled. As the material distributing component 2 moves with the first conveyor belt 11 and contacts the second conveyor belt 12, the material distributing component 2 is squeezed and fits with the first conveyor belt 11. At the same time, the brush arranged on the second conveyor belt 12 will clean the material distributing grid plate 22 to remove the material remaining on the material distributing grid plate 22. When the material distributing grid plate 22 is completely separated from the second conveyor belt 12, the material distributing grid plate 22 tilts again due to gravity. At this time, the pressing strip 231 at the bottom of the movable grid 23 disengages from the limit guide bar 212, and the limit gear 211 resets under the action of the spring 223 and extends into the limit tooth groove 222 to limit the material distributing grid plate 22 again. The limit groove 213 and the slider 215 arranged in the fixed seat 21 cooperate to limit the rotation angle of the material distributing grid plate 22, so that the quantity or weight of the material lifted by the material distributing grid plate 22 during material distribution will not have too large a difference, reducing the retention of the material and the probability of material retention.

[0038] The auxiliary cleaning component 3, the auxiliary cleaning component 3 includes a reciprocating inflation part 34 and a blowing frame 35 which are communicated with each other. The reciprocating inflation part 34 is drivingly connected with the first conveyor belt 11 through a transmission member 31. The blowing frame 35 is provided with a blowing strip 351 and a movable pressing plate 352 which is elastically installed on the blowing frame 35 and cooperates with the fixed strip 111. The blowing strip 351 is opened after the movable pressing plate 352 is squeezed by the fixed strip 111.

[0039] Among them, the auxiliary cleaning component 3 further includes a driving gear 32 and a driven gear 33 which are rotatably arranged on the bracket 1 and mesh with each other. One end of the driving gear 32 is drivingly connected with the driving roller through a transmission member 31. An eccentric column is arranged on one side of the driven gear 33, and the eccentric column is drivingly connected with the reciprocating inflation part 34. The reciprocating inflation part 34 is a prior art and will not be elaborated here. The reciprocating inflation part 34 is provided with a one-way air inlet hole and a one-way air outlet hole. The one-way air outlet hole is communicated with the blowing frame 35 to inflate the blowing frame 35.

[0040] In addition, a sealing plate 353 for blocking the air blowing strip 351 is elastically mounted on the air blowing frame 35. The air blowing strip 351 is always misaligned with the air blowing strip 351 and blocks the air blowing strip 351 in the initial state. The movable pressure plate 352 is elastically mounted on the air blowing frame 35 and always faces the inner side of the conveyor belt 11. In the initial state, the top of the movable pressure plate 352 contacts the bottom of the sealing plate 353. After the movable pressure plate 352 is squeezed by the fixed strip 111, it retracts into the air blowing frame 35 and pushes the sealing plate 353 to rise, thereby opening the air blowing strip 351.

[0041] In addition, a baking furnace applying the vertical lifting and conveying mechanism according to any one of the above is further provided. The baking furnace includes a box body covering the conveyor belt 12, and a heating component is provided in the box body. A hot air circulation component is further provided on the box body.

[0042] In the above technical solution, through the cooperation of the transmission member 31, the driving gear 32, and the driven gear 33, during the process of the conveyor belt 11 driving the material distributing component 2 to move, the inside of the air blowing frame 35 is continuously inflated. When the material distributing component 2 moves to the conveyor belt 12 and contacts it, the fixed strip 111 provided on the inner side of the conveyor belt 11 will squeeze the movable pressure plate 352 and cooperate with the sealing plate 353 to open the air blowing strip 351 for air blowing. Since the strip-shaped through holes on the movable grille 23 and the material distributing grille plate 22 correspond at this time, the stagnant materials on the material distributing grille plate 22 are further assisted in being cleaned, thereby reducing the risk of material stagnation again, and thus improving the overall production quality and efficiency.

[0043] Working principle: The conveyor belt 11 moves on the bracket 1 and drives the material feeding component 2 to move cyclically in the vertical direction, conveying the material to the conveyor belt 12. Subsequently, the material is moved from the low position to the high position again. When the material feeding component 2 moves to the top of the bracket 1 and imports the material onto the conveyor belt 12, at the same time, the movable grille 23 descends within the material feeding grille plate 22 and squeezes the limit guide bar 212, causing the limit gear 211 to retract into the fixed seat 21 and disengage from the limit tooth groove 222, so as to cancel the restriction between the material feeding grille plate 22 and the fixed seat 21. Subsequently, the material feeding component 2 moves along with the conveyor belt 11 and contacts the conveyor belt 12. After being squeezed, the material feeding component 2 fits with the conveyor belt 11. When the conveyor belt 12 conveys the material, the brush on the conveyor belt 12 will clean the material feeding grille plate 22 to remove the material remaining on the material feeding grille plate 22. With the cooperation of the transmission component 31, the driving gear 32 and the driven gear 33, the inside of the air blowing frame 35 is continuously inflated. When the material feeding component 2 moves to and contacts the conveyor belt 12, the fixed strip 111 arranged on the inner side of the conveyor belt 11 will squeeze the movable pressing plate 352 and cooperate with the sealing plate 353 to open the air blowing strip 351 for air blowing. Since the strip-shaped through holes on the movable grille 23 and the material feeding grille plate 22 correspond at this time, it further assists in cleaning the material remaining on the material feeding grille plate 22. Finally, after the material feeding grille plate 22 is completely separated from the conveyor belt 12, the material feeding grille plate 22 tilts again due to gravity. At this time, the pressing strip 231 at the bottom of the movable grille 23 disengages from the limit guide bar 212, and the limit gear 211 resets under the action of the spring 223 and extends into the limit tooth groove 222 to limit the material feeding grille plate 22 again. The limit groove 213 and the slider 215 arranged in the fixed seat 21 cooperate to limit the rotation angle of the material feeding grille plate 22, so that the quantity or weight of the material lifted by the material feeding grille plate 22 during feeding will not have too large a difference.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A vertical lifting and conveying mechanism, comprising a bracket (1), wherein a first conveyor belt (11) is vertically installed on the bracket (1), and a second conveyor belt (12) is horizontally installed, and is characterized in that, It further includes: A material pushing component (2) for pushing materials. The material pushing component (2) includes a fixed seat (21) arranged on the first conveyor belt (11) and a material pushing grille plate (22) rotatably connected to the fixed seat (21). A limiting gear (211) is elastically installed in the fixed seat (21), and a movable grille (23) for changing the position of the limiting gear (211) is slidably installed in the material pushing grille plate (22). When the movable grille (23) moves towards the fixed seat (21), it squeezes the limiting gear (211) to separate from the material pushing grille plate (22), canceling the limitation between the material pushing grille plate (22) and the fixed seat (21), and vice versa to limit the relative rotation between the material pushing grille plate (22) and the fixed seat (21). A fixed strip (111) is arranged inside the first conveyor belt (11). The limiting gear (211) is rotatably arranged on the fixed seat (21) through a rotating shaft, and a spring (223) is arranged between the limiting gear (211) and the fixed seat (21). A limiting guide bar (212) slidably connected to the material pushing grille plate (22) is arranged on the side of the limiting gear (211) away from the fixed seat (21). The limiting guide bar (212) is rectangular, and a limiting tooth groove (222) is correspondingly arranged on the side of the material pushing grille plate (22) close to the limiting gear (211). Multiple sets of strip-shaped through holes are arranged on the material pushing grille plate (22), and multiple sets of strip-shaped through holes are correspondingly arranged on the movable grille (23). A limiting groove (213) is arranged in the fixed seat (21), and a guide rail (214) is slidably installed in the limiting groove (213). A slider (215) slidably connected to the guide rail (214) is arranged on the limiting gear (211); An auxiliary cleaning component (3). The auxiliary cleaning component (3) includes a reciprocating inflation part (34) and a blowing frame (35) that are interconnected. The reciprocating inflation part (34) is drivingly connected to the first conveyor belt (11) through a transmission component (31). A blowing strip (351) is arranged on the blowing frame (35), and a movable pressing plate (352) elastically installed on the blowing frame (35) and cooperating with the fixed strip (111) is arranged. When the movable pressing plate (352) is squeezed by the fixed strip (111), the blowing strip (351) is opened.

2. The vertical lifting and conveying mechanism according to claim 1, wherein The first conveyor belt (11) is arranged on the bracket (1) through a driving roller, and a strip-shaped groove is arranged on the driving roller. Multiple sets of the material pushing components (2) are arranged on the first conveyor belt (11) at equal intervals. Multiple sets of the fixed strips (111) are arranged corresponding to the material pushing components (2), and the distance between adjacent fixed strips (111) is the same as the distance between adjacent strip-shaped grooves on the driving roller.

3. A vertical lifting and conveying mechanism according to claim 1, characterized in that, A pressure strip (231) cooperating with the limit guide strip (212) is provided at the bottom of the movable grille (23). When the pressure strip (231) squeezes the limit guide strip (212), the limit gear (211) is pushed to disengage from the limit tooth groove (222) and retract into the fixed seat (21). At this time, the restriction on the material feeding grille plate (22) and the fixed seat (21) is cancelled, and the material feeding grille plate (22) and the fixed seat (21) can rotate relative to each other. When the material feeding assembly (2) moves to the second conveyor belt (12), it is squeezed into a vertical state by the second conveyor belt (12) until it disengages from the second conveyor belt (12).

4. A vertical lifting and conveying mechanism according to claim 3, characterized in that, After the movable grille (23) squeezes the limit guide strip (212), the strip-shaped through holes on the material feeding grille plate (22) and the movable grille (23) are communicated. A limit strip (221) is provided at the top of the material feeding grille plate (22). The limit strip (221) is used to limit the sliding distance between the movable grille (23) and the material feeding grille plate (22) after the material feeding grille plate (22) is tilted, so as to block the strip-shaped through holes on the material feeding grille plate (22).

5. A vertical lifting and conveying mechanism according to claim 1, characterized in that, The auxiliary cleaning assembly (3) further includes a driving gear (32) and a driven gear (33) which are rotatably arranged on the bracket (1) and mesh with each other. One end of the driving gear (32) is connected to the driving roller through a transmission member (31). An eccentric column is provided on one side of the driven gear (33), and the eccentric column is drivingly connected to the reciprocating inflation part (34).

6. The vertical lifting and transmission mechanism according to claim 1, characterized in that, A sealing plate (353) for blocking the air blowing strip (351) is elastically installed on the air blowing frame (35). The air blowing strip (351) is always misaligned with the air blowing strip (351) and blocks the air blowing strip (351) in the initial state. The movable pressing plate (352) is elastically installed on the air blowing frame (35) and always faces the inner side of the first conveyor belt (11). In the initial state, the top of the movable pressing plate (352) contacts the bottom of the sealing plate (353). After the movable pressing plate (352) is squeezed by the fixed strip (111), it retracts into the air blowing frame (35) and pushes the sealing plate (353) to rise, thereby opening the air blowing strip (351).

7. A vertical lifting and conveying mechanism according to claim 1, characterized in that, The guide rail (214) can slide in the limit groove (213) along the axis of the fixed seat (21). Under the matching of the slider (215) and the guide rail (214), the axial movement of the limit gear (211) is not affected, and the relative rotation angle between the fixed seat (21) and the material feeding grille plate (22) can be limited.

8. A baking oven having a vertical lifting and conveying mechanism according to any one of claims 1-7, characterized in that, The baking furnace includes a box body covering the second conveyor belt (12), and a heating assembly is provided in the box body. A hot air circulation assembly is also provided on the box body.

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