Closed belt type food dryer

Abstract

The utility model relates to the technical field of food drying machines, in particular to a closed belt type food drying machine which comprises a closed shell, and a conveying belt and a heating assembly are arranged in the closed shell. And a rotating roll shaft is arranged on the conveying belt. The rotating roll shafts move in the conveying direction through the conveying belt, a driving assembly is arranged in the conveying belt, transmission assemblies and roll shaft columns are arranged in the rotating roll shafts, and the roll shaft columns are connected with the driving assembly through the transmission assemblies to achieve autorotation. And a filter plate is covered above the conveying belt. A transverse air blowing assembly is arranged above the conveying starting end of the conveying belt, and the air blowing direction of the transverse air blowing assembly faces the conveying tail end direction of the conveying belt. A vertical air blowing assembly is arranged below the conveying belt, and the air blowing direction of the vertical air blowing assembly is from the lower portion of the conveying belt to the upper portion of the conveying belt. A heating assembly is arranged at an air inlet of the vertical air blowing assembly. The food drying device achieves the technical purposes that food is evenly dried, and residues and chippings on the surface of the food are cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to food drying machine technical field, specifically, relate to the closed belt type food drying machine. BACKGROUND

[0002] The closed belt type food drying machine is a kind of equipment specially used for food drying.The main principle is that food raw materials are evenly placed on the conveying belt, and the food raw materials are moved back and forth in the drying machine by transmission device.In the moving process, materials are dried by hot air, so as to achieve the purpose of drying.

[0003] The existing closed belt type food drying machine generally cannot automatically turn over food raw materials, and the drying speed of each surface is inconsistent during the drying process, and also cannot remove the residual debris attached to the food raw materials during the drying process.

[0004] The patent with the patent name "closed belt type food drying machine" and the publication number CN118009681A has been disclosed, which includes a sealed cabin, a heating mechanism and a transmission mechanism are arranged in the sealed cabin, a discharging mechanism is arranged below the sealed cabin, a dehumidifying mechanism is arranged above the sealed cabin, a cloth distribution mechanism is further arranged on the sealed cabin, the cloth distribution mechanism is slidably connected with the sealed cabin, a storage box in the cloth distribution mechanism and the sealed cabin are provided with a cloth distribution channel communicated with the storage box.The invention can evenly spread the materials on the conveying belt during displacement, to prevent the accumulation of materials.

[0005] Although the device can avoid material accumulation, it cannot remove the residual debris on the surface of food raw materials during the drying process, and cannot guarantee the quality of food. UTILITY MODEL CONTENT

[0006] The purpose of the present application is to provide a closed belt type food drying machine, which solves the technical problems of uniform drying of food and cleaning of residual debris on the surface of food.

[0007] In order to solve the above technical problems, the scheme adopted by the present application is as follows:

[0008] The closed belt type food drying machine comprises a closed shell, and a conveying belt and a heating assembly are arranged inside the closed shell.

[0009] Preferably, the conveying ends of the conveying belt are respectively arranged outside the closed shell, and a rotating roller shaft is arranged on the conveying belt.

[0010] Preferably, the rotating roller shaft is displaced along the conveying direction through the conveying belt, a driving assembly is arranged in the conveying belt, the rotating roller shaft comprises a transmission assembly and a roller shaft column inside, the roller shaft column is connected with the driving assembly through the transmission assembly, and self-rotation is realized.

[0011] Preferably, a filter plate is arranged above the conveying belt.

[0012] Preferably, a horizontal blowing assembly is arranged above the conveying starting end of the conveying belt, and the blowing direction of the horizontal blowing assembly is towards the conveying end direction of the conveying belt.

[0013] Preferably, a vertical blowing assembly is arranged below the conveying belt, and the blowing direction of the vertical blowing assembly is from the bottom of the conveying belt to the top of the conveying belt.

[0014] Preferably, the air inlet of the vertical blowing assembly is provided with a heating assembly.

[0015] Preferably, the conveying belt comprises a fixed plate fixed inside the closed shell, and the two ends of the fixed plate are respectively provided with a motor, and the driving shaft of the motor is coaxially connected with a rotating shaft.

[0016] Preferably, the rotating shafts at the two ends of the fixed plate are respectively sleeved with the two ends of the belt, and the outer edge of the belt is provided with a ring plate, a plurality of roller shaft columns are rotatably arranged on the ring plate, and the roller shaft columns are uniformly arranged along the outer edge of the belt.

[0017] Preferably, the transmission assembly comprises a gear and a gear ring, the gear is coaxially fixed at the two ends of the roller shaft column, and the gear corresponds to the roller shaft column in number.

[0018] Preferably, a plurality of gears are meshed and connected with one gear ring, and the gear ring is arranged outside the fixed plate and matches the shape of the belt.

[0019] Preferably, the top of the conveying belt is provided with a dust accumulation groove plate, the dust accumulation groove plate is fixedly arranged inside the closed shell, the dust accumulation groove plate is hollow inside, the bottom surface of the dust accumulation groove plate is provided with an opening, and the opening end is inwardly bent.

[0020] Preferably, the vertical blowing assembly comprises a sleeve, the sleeve penetrates through up and down, and the bottom of the sleeve is provided with an air inlet.

[0021] Preferably, a first fan assembly is arranged at the top of the sleeve, a first filter cotton is arranged near the air inlet in the sleeve, and a heating assembly is arranged between the first fan assembly and the first filter cotton.

[0022] Preferably, a wind channel branch is arranged on one side of the through hole at the top of the sleeve, and the channel of the wind channel branch vertically faces the conveying belt.

[0023] Preferably, the horizontal blowing assembly comprises a wind guide pipe, the air inlet end of the wind guide pipe is communicated with the dust accumulation groove plate, the air outlet end of the wind guide pipe is arranged above the conveying starting end of the conveying belt, and the pipe opening of the air outlet end is located between the conveying belt and the filter plate.

[0024] Preferably, a second fan assembly is arranged near the air inlet end in the wind guide pipe, and a second filter cotton is arranged between the second fan assembly and the air inlet end.

[0025] The technical scheme of the present application has at least the following advantages and beneficial effects:

[0026] In the utility model, through setting up the conveying belt and the rotating roller shaft connected with the conveying belt, the even overturning of the food raw materials in the food raw material drying conveying process is realized by the rotation of the roller shaft column in the rotating roller shaft, and the even drying is realized;

[0027] In the utility model, by setting up the vertical blowing assembly and the filter plate, the food raw materials of part of lighter are blown up by the vertical blowing assembly, the gap between the food raw materials is increased, the residual debris on the surface of the food raw materials is blown off, and the quality of the food raw materials is improved;

[0028] In the utility model, the food raw materials blown up continue to displace towards the conveying direction by the cooperation of the horizontal blowing assembly and the vertical blowing assembly, and the food raw materials are conveniently conveyed out after drying. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the sectional view structural schematic drawing of the utility model.

[0030] Figure 2 It is the sectional view structural schematic drawing of another angle of the utility model.

[0031] Figure 3 It is the sectional view structural schematic drawing of the horizontal blowing assembly in the utility model.

[0032] Figure 4 It is the sectional view structural schematic drawing of the dust accumulation groove in the utility model.

[0033] Figure 5 It is the sectional view structural schematic drawing of the conveying belt in the utility model.

[0034] Figure 6 It is the sectional view structural schematic drawing of the vertical blowing assembly in the utility model.

[0035] Figure 7 It is the structural schematic drawing of the utility model.

[0036] In the drawing, 1 is a closed shell, 2 is a conveying belt, 201 is a fixed plate, 202 is a motor, 203 is a rotating shaft, 204 is a belt, 3 is a rotating roller shaft, 301 is a roller shaft column, 302 is a gear, 303 is a gear ring, 4 is a filter plate, 5 is a dust accumulation groove plate, 6 is a vertical blowing assembly, 601 is a sleeve, 602 is a first fan assembly, 603 is a first filter cotton, 604 is an air inlet, 605 is a air duct branch, 7 is a heating assembly, 701 is a heater, 702 is a heat conduction rod, 8 is a horizontal blowing assembly, 801 is a air guide pipe, 802 is a second fan assembly, and 803 is a second filter cotton. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0038] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. If the terms "center", "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the application. It should be noted that, unless otherwise explicitly specified and limited, if the terms "set", "install", "connect" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or detachably connected, or integrally connected; they can be mechanically connected, or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0039] Embodiments

[0040] Please refer to Figures 1-7 The utility model provides closed belt type food drying machine, including closed shell 1, conveying belt 2, rotating roll shaft 3, filter plate 4, dust accumulation groove plate 5, vertical blowing assembly 6, heating assembly 7, horizontal blowing assembly 8.

[0041] Further, the conveying belt 2 is used for conveying external food raw materials, and the conveying ends of the conveying belt 2 are respectively provided through the closed shell 1, so that the food raw materials enter the inside of the closed shell 1 for drying treatment.

[0042] Further, a plurality of rotating roll shafts 3 are arranged uniformly on the conveying belt 2, and when the conveying belt 2 is conveyed, the rotating roll shafts 3 also rotate when following the conveying belt, so that the food raw materials can also rotate continuously during the conveying process.

[0043] The rotating roller shaft 3 is displaced along the conveying direction by the conveying belt 2, the conveying belt 2 is provided with a driving assembly, the rotating roller shaft 3 internally comprises a transmission assembly and a roller shaft column 301, the driving assembly rotates to drive the conveying belt 2 to realize the displacement function, the roller shaft column 301 is connected with the driving assembly through the transmission assembly, and the rotation of the driving assembly is utilized to realize the rotation of the roller shaft column 301, and the conveying belt 2 is uniformly provided with a plurality of roller shaft columns 301, the food raw materials are placed on the roller shaft columns 301 and are displaced by the conveying belt 2, in the displacement process, the roller shaft columns 301 also rotate to continuously overturn the food raw materials thereon.

[0044] Preferably, a vertical air blowing assembly 6 is arranged below the conveying belt 2, the air blowing direction of the vertical air blowing assembly 6 is from below the conveying belt 2 to above the conveying belt 2, the air inlet 604 of the vertical air blowing assembly 6 is provided with a heating assembly 7, so that hot air is blown into the conveying belt 2 from below to above to dry the food raw materials on the conveying belt 2, and the food raw materials continuously overturned by the roller shaft columns 301 can be uniformly dried.

[0045] Further, the conveying belt 2 is covered with a filter plate 4, and the conveying surface of the entire conveying belt 2 is covered, and a plurality of filter holes are arranged on the plate surface of the filter plate 4.

[0046] Preferably, the air speed of the vertical air blowing assembly 6 is relatively large, so that part of the relatively light food raw materials are blown away from the conveying belt 2 and the roller shaft columns 301, and are blocked by the filter plate 4, thereby increasing the gap between the food raw materials on the conveying belt 2, facilitating the wind flow to blow off the residues and debris on the surface of the food raw materials, and the residues and debris are blown out through the filter holes of the filter plate 4, so that the quality of the dried food raw materials is ensured, and the residues and debris are prevented from hiding in the wrinkle layer on the surface of the food raw materials after drying and shrinking.

[0047] Further, a horizontal air blowing assembly 8 is arranged above the conveying starting end of the conveying belt 2, and the air blowing direction of the horizontal air blowing assembly 8 is towards the conveying end direction of the conveying belt 2.

[0048] Preferably, because part of the relatively light food raw materials are blown away from the conveying belt 2 and the roller shaft columns 301 by the vertical air blowing assembly 6, cannot continue to move along the conveying direction of the conveying belt 2, and are accumulated at the filter plate 4, the horizontal air blowing assembly 8 is utilized to blow air along the conveying direction of the conveying belt 2 to blow the relatively light food raw materials to the conveying belt 2 and the roller shaft columns 301 again, move along the conveying direction, and leave the inside of the closed shell 1.

[0049] Please refer to Figure 1 and Figure 2 In the embodiment, the conveying belt 2 comprises a fixed plate 201, a motor 202 and a rotating shaft 203.

[0050] The transmission assembly comprises a roller shaft column 301, a gear 302 and a gear ring 303.

[0051] Specifically, a fixed plate 201 is fixedly arranged on each of the two side walls inside the closed shell 1, and two ends of the fixed plate 201 on one side are respectively fixedly arranged with a motor 202. A driving shaft of the motor 202 is coaxially connected with a rotating shaft 203, and two ends of the rotating shaft 203 are respectively rotatably connected with the two fixed plates 201.

[0052] The rotating shaft 203 at the two ends of the fixed plate 201 is respectively sleeved with two ends of a belt 204, and the belt 204 is driven to rotate by the motor 202. An outer edge of the belt 204 is fixedly arranged with a ring plate. When the belt 204 rotates, the ring plate on the belt 204 also rotates, and the ring plate is slidably attached to the inner side of the fixed plate 201. A plurality of roll shaft columns 301 are rotatably arranged in a plurality of holes in the ring plate, and the number of the holes and the roll shaft columns 301 corresponds one-to-one. The roll shaft columns 301 are uniformly arranged along the outer edge of the belt 204, and the two shaft ends of the roll shaft columns 301 are blocked by the surface of the fixed plate 201 to limit the sliding of the roll shaft columns 301 in the axial direction. When the belt 204 rotates, the plurality of roll shaft columns 301 on the ring plate also rotate to achieve the conveying function of the conveying belt 2.

[0053] It is worth noting that the motor 202 is arranged as a driving assembly of the conveying belt 2.

[0054] A gear 302 is coaxially fixedly arranged at each end of the roll shaft column 301, and the number of the gears 302 corresponds one-to-one with the number of the roll shaft columns 301. A plurality of gears 302 are meshingly connected with a toothed ring 303, and the toothed ring 303 is arranged outside the fixed plate 201. The shape of the toothed ring 303 matches the shape of the belt 204. When the gears 302 on the roll shaft columns 301 rotate with the belt 204, the gears 302 mesh with the toothed ring 303 during movement, so that the gears 302 rotate to drive the roll shaft columns 301 to rotate and achieve self-rotation.

[0055] Please refer to Figure 4 In this embodiment, a dust accumulation groove plate 5 is further arranged above the conveying belt 2 to collect the residues and debris blown from the food raw materials.

[0056] Specifically, the dust accumulation groove plate 5 is fixedly arranged inside the closed shell 1, and the dust accumulation groove plate 5 is hollow inside. An opening is arranged on the bottom surface of the dust accumulation groove plate 5, and the opening end is inwardly curved.

[0057] When the residues and debris are blown out of the filter plate 4, they are guided to the inside of the dust accumulation groove plate 5 through the inwardly curved opening of the dust accumulation groove plate 5 above the filter plate 4. The residues and debris inside the dust accumulation groove plate 5 are blocked by the inwardly curved opening end and are difficult to leave, thereby achieving the dust accumulation function.

[0058] Please refer to Figures 2-7In the embodiment, the vertical blowing assembly 6 comprises a sleeve 601, a first fan assembly 602, a first filter cotton 603, an air inlet 604, and an air duct branch 605.

[0059] Specifically, the sleeve 601 is fixedly arranged at the bottom of the closed shell 1, the sleeve 601 is vertically through, and the sleeve 601 is provided with the air inlet 604 at the bottom, the air inlet 604 is connected between the inside of the closed shell 1 and the external environment, and air flow is facilitated to blow.

[0060] The first fan assembly 602 is arranged at the top of the sleeve 601, the first filter cotton 603 is arranged at the position close to the air inlet 604 in the sleeve 601, and the first fan assembly 602 and the first filter cotton 603 are provided with the heating assembly 7.

[0061] The first fan assembly 602 is composed of a fan and a driving motor thereof, the driving motor drives the fan to rotate to blow, the blowing direction is upward, the external environment is sucked into the closed shell 1 through the air inlet 604, the water vapor and impurities in the external environment are filtered by the first filter cotton 603, then the filtered air is heated by the heating assembly 7, and finally the air is blown to the conveying belt 2 to heat and dry the food raw materials.

[0062] The heating assembly 7 comprises a heater 701 and a heat conduction rod 702, the heater 701 is fixed outside the vertical blowing assembly 6, the heat conduction rod 702 is located inside the vertical blowing assembly 6, the heater 701 heats the heat conduction rod 702, and the heating assembly 7 is common knowledge of those skilled in the art, and thus is not described in detail.

[0063] In addition, the air duct branch 605 is arranged at one side of the through hole of the sleeve 601, the air duct branch 605 blocks a part of the vertical blowing air to flow into the channel on the horizontal side through a baffle, the channel of the air duct branch 605 vertically faces the conveying belt 2, the conveying belt 2 is blown through the channel, but the air speed of the channel is much lower than that of the through hole of the sleeve 601.

[0064] Preferably, a plurality of vertical blowing assemblies 6 are evenly arranged below the conveying belt 2 to provide hot air for the whole conveying belt 2, each blowing assembly blows the vertical strong wind from the through hole and the vertical weak wind from the channel, so that the vertical blowing intensity on the conveying belt 2 is strong wind-weak wind-strong wind-weak wind in turn. When the food raw materials are in the strong wind, the lighter food raw materials are blown to the filter plate 4 by the strong wind and separated from the conveying belt 2; when the food raw materials are in the weak wind, the lighter food raw materials are not blown up by the weak wind, and thus the food raw materials are in contact with the conveying belt 2.

[0065] Preferably, by alternating strong and weak wind, the lighter food raw materials will fall up and down on the conveying route, and at the same time of blowing off the residual debris, the lighter food raw materials will also be in contact with the conveying belt 2 for conveying displacement. In this process, the transverse blowing assembly 8 also applies a transverse thrust to the food raw materials, so that the food raw materials enter different intensity vertical wind zones to realize normal conveying of the lighter food raw materials.

[0066] In the embodiment, the transverse blowing assembly 8 comprises a wind guide pipe 801, a second fan assembly 802 and a second filter cotton 803.

[0067] Specifically, the wind guide pipe 801 is fixedly arranged inside the closed shell 1, the air inlet end of the wind guide pipe 801 is communicated with the dust accumulation groove plate 5, the air outlet end of the wind guide pipe 801 is arranged above the conveying starting end of the conveying belt 2, the pipe opening of the air outlet end is located between the conveying belt 2 and the filter plate 4, the second fan assembly 802 is arranged in the wind guide pipe 801 close to the air inlet end, and the second filter cotton 803 is arranged between the second fan assembly 802 and the air inlet end.

[0068] The second fan assembly 802 is composed of a fan and a driving motor, the driving motor drives the fan to rotate, and blows air towards the air outlet end of the wind guide pipe 801, so that the hot air in the dust accumulation groove plate 5 is sucked into the wind guide pipe 801, the residual debris in the hot air is filtered by the second filter plate 4, and the filtered hot air is blown to the conveying starting end of the conveying belt 2 for transverse blowing.

[0069] So far, the embodiments of the utility model have been described in detail. In order to avoid shielding the concept of the utility model, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions of the utility model herein according to the above description, and the scope of the utility model is defined by the appended claims.

Claims

1. A closed belt food dryer, comprising a closed outer shell (1), wherein a conveyor belt (2) and a heating assembly (7) are disposed inside the closed outer shell (1), characterized in that ； The conveyor belt (2) has closed shells (1) extending through both ends, and rotating rollers (3) are provided on the conveyor belt (2); The rotating roller (3) moves along the conveying direction via the conveyor belt (2). A drive assembly is provided inside the conveyor belt (2). The rotating roller (3) includes a transmission assembly and a roller column (301). The roller column (301) is connected to the drive assembly via the transmission assembly to achieve self-rotation. A filter plate (4) is placed over the conveyor belt (2); A transverse blowing assembly (8) is provided above the starting end of the conveyor belt (2), and the blowing direction of the transverse blowing assembly (8) is towards the end of the conveyor belt (2). A vertical blowing assembly (6) is provided below the conveyor belt (2), and the blowing direction of the vertical blowing assembly (6) is from below the conveyor belt (2) to above the conveyor belt (2); The air inlet (604) of the vertical blowing assembly (6) is provided with a heating assembly (7).

2. The enclosed belt food dryer according to claim 1, characterized in that, The conveyor belt (2) includes a fixing plate (201), which is fixed inside the closed shell (1). Motors (202) are respectively provided at both ends of the fixing plate (201), and the drive shaft of the motor (202) is coaxially connected to the rotating shaft (203). The rotating shafts (203) at both ends of the fixed plate (201) are respectively sleeved on both ends of the belt (204). A ring plate is provided on the outer edge of the belt (204), and several rollers (301) are rotatably arranged on the ring plate. The rollers (301) are evenly arranged along the outer edge of the belt (204).

3. The enclosed belt food dryer according to claim 1, characterized in that, The transmission assembly includes a gear (302) and a gear ring (303). The gear (302) is coaxially fixed at both ends of the roller column (301), and the number of gears (302) corresponds one-to-one with the number of roller columns (301). Several gears (302) are meshed with a gear ring (303), which is located on the outside of the fixed plate (201) and the shape of the gear ring (303) matches the shape of the belt (204).

4. The enclosed belt food dryer according to claim 1, characterized in that, A dust collection trough plate (5) is provided above the conveyor belt (2). The dust collection trough plate (5) is fixedly installed inside the closed shell (1). The dust collection trough plate (5) is hollow inside and has an opening on the bottom surface. The opening end is bent inward.

5. The enclosed belt food dryer according to claim 1, characterized in that, The vertical blowing assembly (6) includes a sleeve (601) that extends vertically through the sleeve (601) and has an air inlet (604) at the bottom. A first fan assembly (602) is provided at the top inside the sleeve (601), a first filter cotton (603) is provided inside the sleeve (601) near the air inlet (604), and a heating assembly (7) is provided between the first fan assembly (602) and the first filter cotton (603).

6. The enclosed belt food dryer according to claim 5, characterized in that, A duct branch (605) is provided on one side of the top through-hole of the sleeve (601), and the opening of the duct branch (605) is vertically facing the conveyor belt (2).

7. The enclosed belt food dryer according to claim 1, characterized in that, The transverse blowing assembly (8) includes an air guide pipe (801), the air inlet of the air guide pipe (801) is connected to the dust collection trough plate (5), the air outlet of the air guide pipe (801) is located above the conveying start end of the conveyor belt (2), and the outlet of the air outlet is located between the conveyor belt (2) and the filter plate (4). A second fan assembly (802) is provided inside the air duct (801) near the air inlet, and a second filter cotton (803) is provided between the second fan assembly (802) and the air inlet.

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