Drying box for freeze-drying production of fruits and vegetables

Abstract

The utility model belongs to the technical field of fruit and vegetable freeze-drying production, and particularly relates to a drying box for fruit and vegetable freeze-drying production, which comprises a drying box, a drying assembly and an overturning assembly, a feeding conveyor is fixedly arranged in the top end of the drying box, a discharging conveyor is fixedly arranged in the bottom end of the drying box, and the overturning assembly is arranged in the drying box. The overturning assembly and the drying assembly are installed in the middle and on the rear outer wall of the drying box correspondingly, an upper conveyor and a lower conveyor are arranged on the upper side and the lower side of the overturning assembly correspondingly and fixed into the drying box, and a plurality of material guiding plates are fixed to the inner wall of the drying box. A plurality of material guiding plates are arranged on the upper right portion of the upper conveying machine and the lower conveying machine and the upper left portion of the discharging conveying machine respectively, a material collecting frame is fixed to the inner wall of the middle of the left end of the drying box, the material collecting frame is located right on the left of the overturning assembly, a supporting roller is arranged below the material collecting frame, and the supporting roller is connected to the inner wall of the left end of the drying box through a bearing.

Description

Technical Field

[0001] The utility model belongs to the technical field of freeze-drying production of fruits and vegetables, in particular to a drying box for freeze-drying production of fruits and vegetables. Background Art

[0002] Freeze-dried fruits and vegetables are actually dried fruits and vegetables formed by quickly freezing ordinary fruits and vegetables at low temperatures, and then dehydrating and drying them. This enriches the variety of fruit and vegetable foods, and compared to fresh fruits and vegetables, freeze-dried fruits and vegetables have a longer shelf life. During the dehydration and drying process, a drying oven is required.

[0003] The Chinese utility model patent application number CN202322671409.3 discloses a preserved fruit drying box, which includes a drying box, a box door, a support, a rotating mechanism, a filtering mechanism, and a drying mechanism. The gas entering the air intake shell of the drying box is filtered through a filter screen, and the micro-vibration motor is started to vibrate the filter screen, and the filter screen then shakes and cleans the dust on the surface, thereby improving the dust cleaning effect and facilitating the air intake operation.

[0004] However, in actual use, the above drying box uses a rotating filter frame for placing fruits and vegetables. In order to ensure that the fruits and vegetables can roll in the filter frame, the total amount of fruits and vegetables added can generally only account for about 1 / 3 of the internal volume of the filter frame, and new fruits and vegetables cannot be added continuously during the drying process. For a whole batch of fruits and vegetables to be dried, the drying time of the above device is too long, the cycle is long, and the drying efficiency of the device is low, which will also affect the yield of freeze-dried fruits and vegetables. Therefore, it is urgent to improve the existing preserved fruit drying box and provide a drying box for freeze-dried fruits and vegetables that can continuously add fruits and vegetables, has a fast drying speed, and has high drying efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a drying box for freeze-drying fruits and vegetables with reasonable design, simple structure, continuous addition of fruits and vegetables, fast drying speed and high drying efficiency, so as to solve the problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A drying box for freeze-drying fruit and vegetables, comprising a drying box, a drying assembly and a flip assembly, wherein a feed conveyor is fixedly installed inside the top end of the drying box, and a discharge conveyor is fixedly installed inside the bottom end of the drying box, the flip assembly and the drying assembly are respectively installed on the middle and rear outer walls of the drying box, an upper conveyor and a lower conveyor are respectively provided on the upper and lower sides of the flip assembly, and the upper conveyor and the lower conveyor are both fixed inside the drying box, a plurality of guide plates are fixed on the inner wall of the drying box, and the plurality of guide plates are respectively located on the upper right of the upper conveyor and the lower conveyor and on the upper left of the discharge conveyor, a collection frame is fixed on the inner wall of the middle left end of the drying box, the collection frame is located directly to the left of the flip assembly, a support roller is provided below the collection frame, and the support roller bearing is connected to the inner wall of the left end of the drying box.

[0008] Preferably, the drying component includes a hot air pump, a vertical pipe, a connecting pipe, a horizontal pipe and an air supply box. The hot air pump is fixedly installed on the top of the drying box. The left rear outer wall of the drying box is fixedly provided with a vertical pipe. The output end of the hot air pump is fixedly connected to the connecting pipe, and the other end of the connecting pipe is fixedly connected to the top air inlet end of the vertical pipe. The right side wall of the connecting pipe is provided with multiple horizontal pipes along its length direction, and the right ends of the multiple horizontal pipes are fixedly connected to air supply boxes.

[0009] Preferably, the air supply box is embedded and fixed on the rear end outer wall of the drying box, and the two are internally connected. An isolation net is fixedly connected to the inner side of the front end of the air supply box, and the isolation net is made of stainless steel.

[0010] Preferably, the flipping assembly includes a motor, a support rod, a fixed rod, a stirring barrel and a spiral feeding rod. The motor is fixedly installed on the right side wall of the drying box, the output end of the motor is fixedly connected to the support rod, the outer wall of the support rod is fixedly connected to the fixed rod, the end of the fixed rod away from the support rod is welded and fixed to the inner wall of the stirring barrel, and a spiral feeding rod is fixedly provided on the inner wall of the stirring barrel.

[0011] Preferably, the center lines of the support rod and the stirring barrel coincide with each other, a feed port is provided at the left end of the stirring barrel, the discharge end of the collection frame extends into the feed port at the left end of the stirring barrel, and there is no contact between the two, and the collection frame is funnel-shaped and is inclined on the inner wall of the drying box.

[0012] Preferably, the two support rollers are arranged front-to-back symmetrically with respect to the tumbling barrel, and the support rollers are in rolling contact with the outer surface of the tumbling barrel.

[0013] Preferably, the transmission directions of both the feed conveyor and the discharge conveyor are clockwise, and the transmission directions of both the upper conveyor and the lower conveyor are counterclockwise.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the scheme of the present utility model, a feed conveyor, an upper conveyor, a lower conveyor and a discharge conveyor are utilized, so that freeze-dried fruits and vegetables can be conveyed in an "S"-shaped curve path in a drying box, effectively increasing the conveying time of freeze-dried fruits and vegetables in the drying box. By starting the hot air pump, hot air can be delivered to the top of multiple conveyors through connecting pipes, vertical pipes, horizontal pipes and air supply boxes, so that the freeze-dried fruits and vegetables can be fully heated and dried quickly. Compared with the comparative documents, the present device adopts an assembly line method for drying, and the freeze-dried fruits and vegetables to be dried can be continuously conveyed toward the inside of the drying box through the feed conveyor, so as to shorten the drying time of the entire batch of freeze-dried fruits and vegetables and improve the drying efficiency.

[0016] The utility model can make the frozen fruits and vegetables dropped from the left end of the upper conveyor enter the turning and stirring barrel through the collecting frame, start the motor to control the support rod to drive the turning and stirring barrel to rotate through the fixed rod, and utilize the setting of the spiral feeding rod to facilitate the pushing of the frozen fruits and vegetables entering the turning and stirring barrel to turn over while moving to the right, so that they can fall onto the lower conveyor after changing the side, which is convenient for the frozen fruits and vegetables to change the side and be heated, and can further accelerate the drying speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions, and the following description is made with respect to the drawings:

[0018] Figure 1 This is a three-dimensional front view structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional rear view structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall front view structure of the drying component of the utility model;

[0021] Figure 4 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the overall front view structure of the flip assembly of the utility model;

[0023] Figure 6 It is a right side cross-sectional structural schematic diagram of the utility model.

[0024] In the figure:

[0025] 1. Drying box; 2. Feed conveyor; 3. Discharge conveyor; 4. Drying component; 41. Hot air pump; 42. Vertical pipe; 43. Connecting pipe; 44. Horizontal pipe; 45. Air supply box; 46. Isolation net; 5. Flipping component; 51. Motor; 52. Support rod; 53. Fixed rod; 54. Stirring barrel; 55. Screw feeding rod; 6. Upper conveyor; 7. Lower conveyor; 8. Guide plate; 9. Aggregate frame; 10. Support roller. DETAILED DESCRIPTION

[0026] The embodiments described below are only some of the embodiments of the present invention and do not represent all the embodiments consistent with the present invention. Now, in conjunction with the accompanying drawings, the exemplary embodiments are described as follows:

[0027] like Figure 1-6 As shown in Figure 1, a drying box for freeze-drying fruit and vegetables of the utility model comprises a drying box 1, a feeding conveyor 2 is fixedly installed inside the top of the drying box 1, a discharging conveyor 3 is fixedly installed inside the bottom of the drying box 1, a drying assembly 4 is installed on the rear outer wall of the drying box 1, a turning assembly 5 is installed in the middle position of the drying box 1, an upper conveyor 6 and a lower conveyor 7 are respectively provided on the upper and lower sides of the turning assembly 5, the upper conveyor 6 and the lower conveyor 7 are both fixed in the drying box 1, a plurality of guide plates 8 are fixed on the inner wall of the drying box 1, and the three guide plates 8 are respectively located at the upper right of the upper conveyor 6 and the lower conveyor 7 and the upper left of the discharging conveyor 3, a collection frame 9 is fixed on the inner wall of the middle left end of the drying box 1, the collection frame 9 is located directly to the left of the turning assembly 5, a support roller 10 is provided below the collection frame 9, and the bearing of the support roller 10 is connected to the inner wall of the left end of the drying box 1.

[0028] As a preferred embodiment, on the basis of the above structure, the drying component 4 further includes a hot air pump 41, a vertical pipe 42, a connecting pipe 43, a horizontal pipe 44 and an air supply box 45. The hot air pump 41 is fixedly installed on the top of the drying box 1, and the vertical pipe 42 is fixedly provided on the left rear outer wall of the drying box 1. The output end of the hot air pump 41 is fixedly connected to the connecting pipe 43, and the other end of the connecting pipe 43 is fixedly connected to the top air inlet end of the vertical pipe 42. The right side wall of the connecting pipe 43 is provided with multiple horizontal pipes 44 along its length direction, and the right ends of the multiple horizontal pipes 44 are fixedly connected to the air supply boxes 45.

[0029] In this embodiment, when the hot air pump 41 is started, the connecting pipe 43, the vertical pipe 42 and the multiple horizontal pipes 44 can supply air to the multiple air supply boxes 45 at the same time, and the multiple air supply boxes 45 correspond to the multiple conveyors, which is convenient for drying the freeze-dried fruits and vegetables on the conveyor.

[0030] As a preferred embodiment, based on the above structure, the air supply box 45 is further embedded and fixed on the rear end outer wall of the drying box 1, and the two are internally connected. The front end inner side of the air supply box 45 is fixedly connected with an isolation net 46, and the isolation net 46 is made of stainless steel.

[0031] In this embodiment, the isolation net 46 is provided to prevent freeze-dried fruits and vegetables from falling into the air supply box 45 .

[0032] As a preferred embodiment, on the basis of the above structure, the flipping assembly 5 further includes a motor 51, a support rod 52, a fixed rod 53, a stirring barrel 54 and a spiral feeding rod 55. The motor 51 is fixedly installed on the right side wall of the drying box 1, the output end of the motor 51 is fixedly connected to the support rod 52, the outer wall of the support rod 52 is fixedly connected to the fixed rod 53, the end of the fixed rod 53 away from the support rod 52 is welded and fixed to the inner wall of the stirring barrel 54, and the spiral feeding rod 55 is fixedly provided on the inner wall of the stirring barrel 54.

[0033] In this embodiment, the motor 51 is started, and the support rod 52 controls the rotation of the stirring barrel 54 and the spiral feeding rod 55 through the fixed rod 53, so that the frozen fruits and vegetables entering the stirring barrel 54 are pushed to the right and turned at the same time, which is convenient for the frozen fruits and vegetables to change sides and be heated.

[0034] As a preferred embodiment, on the basis of the above structure, further, the center lines of the support rod 52 and the stirring barrel 54 coincide with each other, a feed port is opened at the left end of the stirring barrel 54, and the discharge end of the collection frame 9 extends to the feed port at the left end of the stirring barrel 54, and there is no contact between the two, and the collection frame 9 is funnel-shaped and is inclined on the inner wall of the drying box 1.

[0035] In this embodiment, the arrangement of the collecting frame 9 facilitates fully guiding the freeze-dried fruits and vegetables dropped from the upper conveyor 6 into the stirring barrel 54, thereby facilitating the turning over of the freeze-dried fruits and vegetables.

[0036] As a preferred embodiment, on the basis of the above structure, further, the two support rollers 10 are arranged front-to-back symmetrically with respect to the stirring barrel 54 , and the support rollers 10 are in rolling contact with the outer surface of the stirring barrel 54 .

[0037] In this embodiment, the support roller 10 can provide a support effect for the tumbling barrel 54 , thereby ensuring the stable rotation of the tumbling barrel 54 .

[0038] As a preferred embodiment, on the basis of the above structure, further, the transmission directions of both the feed conveyor 2 and the discharge conveyor 3 are clockwise, and the transmission directions of both the upper conveyor 6 and the lower conveyor 7 are counterclockwise.

[0039] In this embodiment, the feed conveyor 2, the upper conveyor 6, the lower conveyor 7 and the discharge conveyor 3 can be used to transport the freeze-dried fruits and vegetables in the drying box 1 along an "S"-shaped curve path, effectively increasing the transport time of the freeze-dried fruits and vegetables in the drying box 1.

[0040] The working principle of the utility model is as follows:

[0041] When using, first place the fruits and vegetables to be dried in a freeze-dried Figure 1 The feed conveyor 2 shown in FIG. 1 and starts to slowly move the conveyor toward the inside of the drying box 1, as shown in FIG. Figure 4 As shown in the figure, the freeze-dried fruits and vegetables can fall on the upper conveyor 6, the lower conveyor 7 and the discharging conveyor 3 in sequence for transmission. The freeze-dried fruits and vegetables are transmitted in the drying box 1 according to the "S"-shaped curve trend path, which greatly increases the transmission time of the freeze-dried fruits and vegetables in the drying box 1. At the same time, the hot air pump 41 is started, and the hot air can be transported to the top of multiple conveyors through the connecting pipe 43, the vertical pipe 42, the horizontal pipe 44 and the multiple air supply boxes 45, so as to facilitate the rapid drying of the freeze-dried fruits and vegetables;

[0042] When the freeze-dried fruits and vegetables fall from the left end of the upper conveyor 6, the freeze-dried fruits and vegetables can be guided to the inside of the stirring barrel 54 through the funnel-shaped and inclined collecting frame 9, and the motor 51 is started to drive the support rod 52 to drive the stirring barrel 54 to rotate at a constant speed through the fixed rod 53, and the spiral feeding rod 55 fixed on the inner wall of the stirring barrel 54 is used to facilitate the freeze-dried fruits and vegetables in the stirring barrel 54 to move to the right and turn them at the same time, so that they can fall onto the lower conveyor 7 after changing the side, which is convenient for the freeze-dried fruits and vegetables to change the side and be heated, and the drying speed of the freeze-dried fruits and vegetables can be further accelerated;

[0043] Unlike the comparative documents, the present device adopts an assembly line method for drying, and the freeze-dried fruits and vegetables to be dried can be continuously conveyed toward the inside of the drying box 1 through the feed conveyor 2, which is convenient for shortening the drying time of the entire batch of freeze-dried fruits and vegetables and improving the drying efficiency. After drying, the freeze-dried fruits and vegetables can be transferred and output through the discharge conveyor 3, which is convenient for material collection or the next processing step.

[0044] The above are only preferred specific embodiments of the utility model and are not intended to limit the protection scope of the utility model; any equivalent changes, modifications, substitutions and variations made by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the protection scope determined by the claims.

Claims

1. A drying box for freeze-drying fruits and vegetables, comprising a drying box (1), a drying component (4) and a turning component (5), characterized in that: A feeding conveyor (2) is fixedly installed inside the top end of the drying box (1), and a discharging conveyor (3) is fixedly installed inside the bottom end of the drying box (1). The turning assembly (5) and the drying assembly (4) are respectively installed in the middle and rear outer walls of the drying box (1). An upper conveyor (6) and a lower conveyor (7) are respectively provided on the upper and lower sides of the turning assembly (5). The upper conveyor (6) and the lower conveyor (7) are both fixed inside the drying box (1). A plurality of guide plates (8) are fixed on the inner wall of the drying box (1), and the plurality of guide plates (8) are respectively located on the upper right of the upper conveyor (6) and the lower conveyor (7) and on the upper left of the discharge conveyor (3). A material collecting frame (9) is fixed on the inner wall of the middle part of the left end of the drying box (1), and the material collecting frame (9) is located on the left side of the turning assembly (5). A support roller (10) is provided below the material collecting frame (9), and the bearing of the support roller (10) is connected to the inner wall of the left end of the drying box (1).

2. A drying box for freeze-drying fruits and vegetables according to claim 1, characterized in that: The drying assembly (4) comprises a hot air pump (41), a vertical pipe (42), a connecting pipe (43), a horizontal pipe (44) and an air supply box (45). The hot air pump (41) is fixedly installed on the top of the drying box (1). The vertical pipe (42) is fixedly provided on the left rear outer wall of the drying box (1). The output end of the hot air pump (41) is fixedly connected to the connecting pipe (43). The other end of the connecting pipe (43) is fixedly connected to the top air inlet end of the vertical pipe (42). The right side wall of the connecting pipe (43) is provided with a plurality of the horizontal pipes (44) along its length direction. The right ends of the plurality of the horizontal pipes (44) are all fixedly connected to the air supply box (45).

3. A drying box for freeze-drying fruits and vegetables according to claim 2, characterized in that: The air supply box (45) is embedded and fixed on the rear end outer wall of the drying box (1), and the two are internally connected. The inner side of the front end of the air supply box (45) is fixedly connected to an isolation net (46), and the isolation net (46) is made of stainless steel.

4. A drying box for freeze-drying fruits and vegetables according to claim 1, characterized in that: The turning assembly (5) comprises a motor (51), a support rod (52), a fixed rod (53), a stirring barrel (54) and a spiral feeding rod (55); the motor (51) is fixedly mounted on the right side wall of the drying box (1); the output end of the motor (51) is fixedly connected to the support rod (52); the outer wall of the support rod (52) is fixedly connected to the fixed rod (53); one end of the fixed rod (53) away from the support rod (52) is welded and fixed to the inner wall of the stirring barrel (54); and the spiral feeding rod (55) is fixedly arranged on the inner wall of the stirring barrel (54).

5. A drying box for freeze-drying fruits and vegetables according to claim 4, characterized in that: The center lines of the support rod (52) and the stirring barrel (54) coincide with each other, a feed port is provided at the left end of the stirring barrel (54), a discharge end of the material collection frame (9) extends to the feed port at the left end of the stirring barrel (54), and the two are not in contact, and the material collection frame (9) is funnel-shaped and is arranged at an angle on the inner wall of the drying box (1).

6. A drying box for freeze-drying fruits and vegetables according to claim 5, characterized in that: The two support rollers (10) are arranged front-to-back symmetrically with respect to the stirring barrel (54), and the support rollers (10) are rollingly fitted with the outer surface of the stirring barrel (54).

7. A drying box for freeze-drying fruits and vegetables according to claim 1, characterized in that: The transmission directions of the infeed conveyor (2) and the outfeed conveyor (3) are both clockwise, and the transmission directions of the upper conveyor (6) and the lower conveyor (7) are both counterclockwise.

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