Tunnel furnace for biscuit production

Abstract

The utility model relates to the technical field of biscuit drying, in particular to a tunnel furnace for biscuit production, which comprises a tunnel furnace and a conveyor belt I. The conveyor belt I is of a multi-section structure, multiple sections are in clearance fit, and a jacking mechanism is arranged on the inner side of one section, located in the tunnel furnace, of the conveyor belt I; the jacking mechanism jacks up the biscuits in the semi-dried state and obliquely places the biscuits; the jacking mechanism comprises jacking pieces for jacking biscuits, the jacking pieces protrude out of the upper end face of the conveying belt, and the two jacking pieces are matched with each other to lift one side of each biscuit. According to the scheme, the conveying belt is divided into the multiple sections, the jacking pieces are arranged between the gaps of the multiple sections of conveying belt, and the two jacking pieces are matched with each other to lift one side of the biscuits, so that the bottoms of the biscuits are hollowed out, hot air flow can conveniently penetrate through the bottoms of the biscuits, the drying speed of the biscuits is increased, and the drying speed is increased under the condition that the length of the tunnel furnace is not increased; and the practicability is high.

Description

Technical Field

[0001] The present application relates to the technical field of biscuit drying, and in particular to a tunnel oven for biscuit production. Background Art

[0002] During the production process, biscuits usually need to be dried to give them a longer shelf life. In the prior art, biscuits are usually dried using a tunnel oven, which uses a heating structure in the tunnel oven and hot air to complete the drying of the biscuits.

[0003] When the biscuits enter the tunnel oven, they are usually transported by a conveyor belt. Since the end surface of the conveyor belt is usually set horizontally, the biscuits are directly placed horizontally on it, so there will be a difference in the drying of the front and back sides of the biscuits. The drying speed of the flipped side is slower. In order to ensure complete drying, directly adjusting the higher temperature may cause the biscuits to be burnt. Therefore, it is necessary to adjust the length of the tunnel oven to ensure the drying effect by extending the drying time, which will invisibly increase the overall floor space of the device and increase the processing cost. Therefore, in order to solve the above problems, the present application provides a tunnel oven for biscuit production.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that the normal drying time of the existing biscuit production tunnel furnace is relatively long, the present application provides a tunnel furnace for biscuit production.

[0006] The present application provides a tunnel furnace for producing biscuits, comprising a tunnel furnace and a conveyor belt for transmitting biscuits to the interior of the tunnel furnace, wherein the conveyor belt is a multi-segment structure with gaps between the multiple segments, and a lifting mechanism is provided inside a segment of the conveyor belt located in the tunnel furnace, and the lifting mechanism lifts up the biscuits in a semi-dried state and places them at an angle;

[0007] The lifting mechanism comprises a lifting piece for lifting the biscuits, the lifting piece is arranged to protrude from the upper end surface of the conveyor belt, and the two lifting pieces cooperate with each other to lift one side of the biscuits.

[0008] By setting up a lifting mechanism and utilizing the lifting piece of the lifting mechanism to protrude from the upper end surface of the conveyor belt, the lifting piece can lift one side of the biscuit, thereby separating the bottom surface of the biscuit from the conveyor belt, allowing the bottom surface to better contact with the hot air flow, thereby accelerating the drying effect.

[0009] Preferably, one of the two lifting pieces is located at the side of the biscuit to limit the position of the biscuit, and the other is located below the middle of the biscuit to lift that side of the biscuit.

[0010] Preferably, the lifting mechanism further includes a second conveyor belt, the lifting plates are evenly distributed on the second conveyor belt, and each lifting plate is arranged on a side of the first conveyor belt.

[0011] Preferably, two rollers 2 are provided on the inner side of the conveyor belt 2, and one of the two rollers 2 is fixedly connected to a gear plate 2, and a roller 1 is provided on the inner side of the conveyor belt 1, and one end of the roller 1 is coaxially fixedly connected to a gear plate 1, and the gear plate 1 and the gear plate 2 are connected by a synchronous belt transmission.

[0012] Preferably, both ends of the two rollers 2 are provided with fixing plates, and one of the two fixing plates is threadedly connected with a bolt.

[0013] Preferably, the front and rear side walls of the tunnel furnace are penetrated with adjustment grooves, the two ends of the two rollers are respectively located in the two adjustment grooves, and the two fixed plates are respectively located on the outside of the tunnel furnace.

[0014] Preferably, both left and right sides of the tunnel furnace are opened, and slide grooves are provided at the upper ends of both sides of the tunnel furnace, and adjustment plates are slidably embedded in the inner sides of the slide grooves. The ends of the tunnel furnace are threadedly connected with fastening bolts for fixing the position of the adjustment plates.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] By dividing the conveyor belt into multiple sections and setting lifting plates between the gaps of the multiple sections of the conveyor belt, the two lifting plates cooperate with each other to lift one side of the biscuits, so that the bottom of the biscuits is hollowed out to facilitate the passage of hot air from underneath, thereby improving the drying rate. Compared with the existing technology, the drying rate is improved without extending the length of the tunnel furnace, which has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the right isometric view in the first embodiment of the present application;

[0018] Figure 2 It is the left isometric view in the first embodiment of the present application;

[0019] Figure 3 This is a structural diagram of the outer wall of the tunnel furnace in Example 1 of the present application;

[0020] Figure 4 It is a structural diagram of the conveyor belt in Example 1 of the present application;

[0021] Figure 5 It is a structural diagram of the lifting mechanism in Example 1 of the present application;

[0022] Figure 6This is a diagram of the biscuit placement structure in Example 1 of the present application.

[0023] Explanation of the accompanying drawings: 1. Roller one; 11. Gear plate one; 2. Conveyor belt one; 3. Tunnel furnace; 31. Slide; 32. Adjustment slot; 4. Heating mechanism; 5. Adjustment plate; 6. Fastening bolts; 7. Closed cover plate; 8. Open cover plate; 9. Lifting mechanism; 91. Fixed plate; 92. Roller two; 93. Gear plate two; 94. Lifting plate; 95. Conveyor belt two; 10. Synchronous belt. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1 - Figure 6 This application is described in further detail.

[0025] Embodiment 1:

[0026] Reference Figure 1 - Figure 6 A biscuit production tunnel furnace 3 includes a tunnel furnace 3 and a conveyor belt 2 for conveying biscuits into the tunnel furnace 3, wherein the conveyor belt 2 is a multi-segment structure with gaps between the multiple segments, and a lifting mechanism 9 is provided inside a segment of the conveyor belt 2 located in the tunnel furnace 3, and the lifting mechanism 9 lifts up the semi-dried biscuits and places them at an angle;

[0027] The lifting mechanism 9 includes a lifting piece 94 for lifting the biscuits. The lifting piece 94 is arranged to protrude from the upper end surface of the conveyor belt. The two lifting pieces 94 cooperate with each other to lift one side of the biscuits.

[0028] One of the two lifting pieces 94 is located at the side of the biscuit to limit the position of the biscuit, and the other is located below the middle of the biscuit to lift the side of the biscuit. The lifted biscuit is placed at an angle, and its bottom is hollowed out to allow hot air to pass through from below, thereby taking away the moisture of the biscuit. The lifting mechanism 9 is located in the rear half of the tunnel furnace 3. At this time, the biscuit is in a semi-formed state. The lifting mechanism 9 is not arranged in the front half of the tunnel furnace 3 to avoid the biscuit from breaking after lifting due to excessive moisture. The lifting mechanism 9 also includes a conveyor belt 2 95, and the lifting pieces 94 are evenly distributed on the conveyor belt 2 95, and each lifting piece 94 is arranged on the conveyor belt 2 On the side of the conveyor belt 1 2, the conveyor belt 2 95 can ensure that all the lifting plates 94 rotate synchronously, so that the rotation speed thereof is the same as that of the conveyor belt 1 2, and the top view position of the biscuits will not be offset; two rollers 2 92 are arranged on the inner side of the conveyor belt 2 95, and one of the two rollers 2 92 is fixedly connected with a gear plate 2 93, and a roller 1 is arranged on the inner side of the conveyor belt 1 2, and one end of the roller 1 is coaxially fixedly connected with a gear plate 11, and the gear plate 11 and the gear plate 2 93 are connected through a synchronous belt 10, and the synchronous belt 10 ensures that the rotation speeds of the rollers 1 and the rollers 2 92 are the same, so that the conveyor belt 1 2 and the conveyor belt 2 95 have the same rotation speed;

[0029] Both ends of the two rollers 92 are provided with fixing plates 91, and one of the two fixing plates 91 is threadedly connected with a bolt, and the end of the bolt is used to contact the outer wall of the heating mechanism 4 to increase the friction between the fixing plate 91 on the other side and the outer wall of the heating mechanism 4, so as to achieve the stability of the position of the conveyor belt 95, and the height and horizontal position of the lifting plate 94 can be adjusted when necessary to improve the applicability of the device; the front and rear side walls of the tunnel furnace 3 are penetrated by adjustment grooves 32, and the two ends of the two rollers 92 are respectively located in the two adjustment grooves 32, and the two fixing plates 91 are respectively located on the outside of the tunnel furnace 3, and the outside of the tunnel furnace 3 is respectively bolted with a closed cover plate 7 and an open cover plate 8, and the open cover plate 8 is installed on the side with the synchronous belt 10.

[0030] The left and right sides of the tunnel furnace 3 are both opened, and a slide groove 31 is provided at the upper end of both sides of the tunnel furnace 3. An adjusting plate 5 is slidably embedded in the inner side of the slide groove 31. The end of the tunnel furnace 3 is threadedly connected with a fastening bolt 6 for fixing the position of the adjusting plate 5. Bumps are provided on both sides of the adjusting plate 5 below the slide groove 31. The fastening bolt 6 is threadedly connected to the outer bump. The inner bump limits the adjusting plate 5, so that the height of the adjusting plate 5 can be adjusted to adapt to different biscuit thicknesses and reduce the loss of internal heat.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tunnel furnace (3) for producing biscuits, comprising a tunnel furnace (3) and a conveyor belt (2) for transmitting biscuits into the tunnel furnace (3), characterized in that: The conveyor belt 1 (2) is of a multi-segment structure, and the gaps between the multiple segments are matched. A lifting mechanism (9) is provided on the inner side of a segment of the conveyor belt 1 (2) located in the tunnel furnace (3), and the lifting mechanism (9) lifts up the semi-dried biscuits and places them at an angle; The lifting mechanism (9) comprises a lifting piece (94) for lifting the biscuits, wherein the lifting piece (94) is arranged to protrude from the upper end surface of the conveyor belt, and the two lifting pieces (94) cooperate with each other to lift one side of the biscuits.

2. A biscuit production tunnel oven according to claim 1, characterized in that: One of the two lifting pieces (94) is located at the side of the biscuit to limit the position of the biscuit, and the other is located below the middle of the biscuit to lift that side of the biscuit.

3. A biscuit production tunnel oven according to claim 2, characterized in that: The lifting mechanism (9) also includes a second conveyor belt (95), the lifting pieces (94) are evenly distributed on the second conveyor belt (95), and each lifting piece (94) is arranged on the side of the first conveyor belt (2).

4. A biscuit production tunnel oven according to claim 3, characterized in that: Two rollers (92) are arranged on the inner side of the conveyor belt (95), and one of the two rollers (92) is fixedly connected to a gear plate (93). A roller (1) is arranged on the inner side of the conveyor belt (2), and one end of the roller (1) is coaxially fixedly connected to a gear plate (11). The gear plate (11) and the gear plate (93) are connected to each other via a synchronous belt (10).

5. A biscuit production tunnel oven according to claim 4, characterized in that: Both ends of the two roller wheels (92) are provided with fixing plates (91), and one of the two fixing plates (91) is threadedly connected with a bolt.

6. A biscuit production tunnel oven according to claim 5, characterized in that: The front and rear side walls of the tunnel furnace (3) are both penetrated by adjustment grooves (32), the two ends of the two rollers (92) are respectively located in the two adjustment grooves (32), and the two fixing plates (91) are respectively located outside the tunnel furnace (3).

7. A biscuit production tunnel oven according to claim 1, characterized in that: The left and right sides of the tunnel furnace (3) are both opened, and the upper ends of the two sides of the tunnel furnace (3) are provided with slide grooves (31), the inner sides of the slide grooves (31) are slidably embedded with adjustment plates (5), and the ends of the tunnel furnace (3) are threadedly connected with fastening bolts (6) for fixing the position of the adjustment plates (5).

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