Drying device and method for preserved fruit preparation

Abstract

The invention relates to the technical field of preserved fruit preparation, in particular to a drying device and method for preserved fruit preparation, the drying device comprises a base, a drying box and a digital display control panel, the drying box is in an axial vertical cylinder shape, the interior of the drying box is hollow, and a material collecting cavity is formed in the upper end of the drying box; an upper box sealing structure used for feeding materials into the material collecting cavity is arranged on the upper portion of the drying box, a lower box sealing structure used for leading out preserved fruits in the drying box is arranged at an opening in the lower end of the drying box, and the drying box is rotationally arranged between the upper box sealing structure and the lower box sealing structure; the drying box and the spiral rib plate can be driven to move up and down through the moving driving structure, and the second motor can drive the drying box to horizontally rotate, so that fruit slices can move downwards along the spiral rib plate in the simultaneous horizontal rotation and up-and-down lifting process of the drying box and the spiral rib plate, and the fruit slices are directly separated and loosened in the up-and-down jolting process; all-dimensional hot air contact of fruit slices can be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of preserved fruit preparation, and in particular to a drying device and method for preparing preserved fruits. Background Art

[0002] Kiwi fruit preserves are a delicious and nutritious food. The preparation process requires multiple steps to ensure the taste and quality of the final product. The raw materials are kiwi fruit that is 80% to 90% ripe. At this time, the sugar content of the kiwi fruit is moderate and the flavor is the best. Overripe kiwi fruit has soft flesh and is difficult to process. Overripe kiwi fruit has a strong sour taste, which affects the taste. After washing, peeling, slicing, blanching, candied and boiled in sugar, it is dried.

[0003] A drying device for preparing preserved fruits with publication number CN210107883U comprises a box body, a partition is welded to the inner wall of the box body, a centrifugal device is arranged on the top of the partition, a driving device is fixedly connected to the right side of the bottom of the inner cavity of the box body, a drying device is fixedly connected to the left side of the bottom of the inner cavity of the box body, the centrifugal device comprises a rotating tube, a centrifugal bucket is welded to the top of the rotating tube, and a barrel core is placed in the inner cavity of the centrifugal bucket.

[0004] The preserved fruit drying device with publication number CN218604972U comprises a box body, a control box is arranged on the upper outer surface of the box body, a driving motor is arranged on the upper outer surface of the box body, a mixing mechanism is arranged on the inner outer surface of the box body, a box door is arranged on the front outer surface of the box body, a drying mechanism is arranged on the outer surface of the mixing mechanism, and a residual material collection drawer mechanism is arranged on the inner outer surface of the box body.

[0005] A belt-type hot air circulation medium-temperature baking room with publication number CN218635242U includes a baking room body, a uniformly distributed conveyor belt is arranged in the baking room body, a loading device is arranged in the right side of the baking room body, a partition is fixedly connected to the top of the baking room body, a heating device is fixedly connected to the top of the partition, and a first circulation fan is fixedly connected to the left side of the top of the partition.

[0006] However, in the preparation of preserved fruits, static drying and belt dynamic drying are often used. Either the drying efficiency is low or the overall equipment occupies a large space. In addition, when the preserved fruits are prepared and dried, it is easy for the contact points to not be dried properly. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] The object of the present invention is to provide a drying device and method for preparing preserved fruits in order to solve the above-mentioned problems.

[0009] (II) Technical solution

[0010] To achieve the above object, the present invention provides the following technical solutions:

[0011] The present invention provides a drying device for preparing preserved fruits, comprising a base, a drying box and a digital display control panel, wherein the drying box is in the shape of an axially vertical cylindrical body, the interior of the drying box is hollow and a material collecting chamber is arranged inside the upper end, an upper sealing box structure for feeding into the material collecting chamber is arranged at the upper part of the drying box, a lower sealing box structure for guiding the preserved fruits out of the drying box is arranged at the lower end opening of the drying box, the drying box is rotatably arranged between the upper sealing box structure and the lower sealing box structure, a second motor for driving the drying box to rotate is arranged on the lower sealing box structure, and a drying circulation air inlet component for introducing drying gas therein and for recycling the gas discharged from the upper sealing box structure is arranged on one side of the lower sealing box structure;

[0012] An inner center shaft is arranged at the central axis of the drying box, an outer sleeve is arranged on the outer shape of the inner center shaft so as to slide along its axial direction, a moving driving structure for driving the outer sleeve to reciprocate along its axial direction is arranged on the inner center shaft, a spiral rib is arranged between the inner wall of the drying box and the outer wall of the outer sleeve, a blade shifting assembly for evenly spreading the preserved fruits on the spiral rib is arranged on the drying box, the lower end of the inner center shaft is connected to the output shaft end of the second motor, and the output end of the digital display control panel is electrically connected to the input end of the second motor.

[0013] Furthermore, two support plates distributed in parallel are fixedly provided on the upper side of the base, a rectangular frame is fixedly provided between the two support plates by bolts, the drying box is rotatably provided on the frame by a rotating telescopic connection structure, the upper sealing box structure and the lower sealing box structure are respectively fixedly provided on the frame, the lower sealing box structure comprises a lower box body, a discharge port is provided on the bottom side of the lower box body, and a receiving box located below the discharge port is provided on the upper side of the base.

[0014] Furthermore, an outer edge plate with an outer shape that is wide at the top and narrow at the bottom is provided at the edge of the upper opening of the aggregate chamber, a V-shaped bottom surface is formed inside the aggregate chamber, a material passage trough for communicating with the interior of the drying box is provided through the lowest point of the bottom side of the aggregate chamber, the upper end of the outer sleeve is fixedly connected to the middle position of the material passage trough, and the upper end of the outer sleeve protrudes from the bottom surface of the interior of the aggregate chamber and is fixedly provided with a conical sleeve.

[0015] Furthermore, the mobile driving structure includes an electric telescopic rod fixedly arranged in the inner center shaft, a guide groove is opened in the inner center shaft, a slider is slidably arranged in the guide groove, an open groove connected to the guide groove is opened on the outer side of the inner center shaft, an extension direction of the open groove is consistent with the axial direction of the inner center shaft, one side of the slider passes through the open groove and is fixedly connected to the inner wall of the outer sleeve, and the output end of the digital display control panel is electrically connected to the input end of the electric telescopic rod.

[0016] Furthermore, two rotating and telescopic connection structures are provided, and the two rotating and telescopic connection structures are opposite to each other at the two ends of the drying box along its axial direction. The rotating and telescopic connection structure includes a first outer convex ring and a second outer convex ring distributed in parallel, and the first outer convex ring and the second outer convex ring are respectively fixedly sleeved on the outside of the drying box, and a plurality of spring connecting plates are evenly distributed with the axis of the drying box as the center. The upper and lower ends of each spring connecting plate are respectively fixedly connected to the first outer convex ring and the second outer convex ring, and the first outer convex ring is rotatably connected to the frame through a bearing.

[0017] Furthermore, the spiral rib is provided with a plurality of gap grooves arranged in concentric circles with the central axis of the inner central shaft as the center, and end shafts are fixedly provided at both ends of the spiral rib, and the two ends of the end shafts are fixedly connected to the outer wall of the outer sleeve and the inner wall of the drying box respectively.

[0018] Furthermore, the blade assembly includes an axle arranged between the pitch gaps of the spiral ribs, and the outer side of each axle is provided with more than three blades evenly distributed around the axis of the axle, the axle and the drying box are rotatably connected to each other and one end passes through the drying box and is fixedly connected to the first gear, the two adjacent first gears are meshed and connected to each other through the second gear, the shaft end of the second gear is rotatably connected to the drying box through the gear shaft, the first gear and the outer side of the first gear are provided with a cover, one of the first gears is driven to rotate by a first motor fixedly arranged on the cover, and the output end of the digital display control panel is electrically connected to the input end of the first motor.

[0019] Furthermore, the upper box sealing structure includes an upper box body, a feed port is provided on one side of the upper end of the upper box body, and a conveyor belt is provided at the feed port.

[0020] Furthermore, the drying circulation air inlet assembly includes a heating bellows arranged on the base, the air outlet of the heating bellows is connected to one end of the air supply pipe, the other end of the air supply pipe is connected to the lower box body, the air inlet of the heating bellows is connected to one end of the circulating air duct, the other end of the circulating air duct is connected to the upper box body, a moisture filter box is arranged on the circulating air duct, the circulating air duct located between the heating bellows and the moisture filter box is connected to an air inlet duct, an electromagnetic three-way valve is arranged at the connection between the circulating air duct and the air inlet duct, and the output end of the digital display control panel is electrically connected to the input end of the electromagnetic three-way valve.

[0021] A drying method for preparing preserved fruits comprises the following steps:

[0022] S1: The conveyor belt transports the sliced ​​fruit slices from the feed port into the upper box body and drops them into the collecting chamber. The output shaft of the second motor rotates to drive the inner central shaft to rotate, thereby driving the drying box to rotate through the outer sleeve;

[0023] S2: When the drying box rotates, the fruit slices are led out from the material chute in the collecting chamber and fall onto the spiral ribs in the drying box in a circular shape. At this time, the mobile driving structure drives the inner central shaft, the outer sleeve, the drying box and the spiral ribs to move up and down reciprocatingly;

[0024] S3: During the simultaneous horizontal rotation and up and down lifting of the drying box and the spiral ribs, the fruit slices can move downward along the spiral ribs, and in the process of up and down shaking, the fruit slices are directly separated and loosened;

[0025] S4: The drying cycle air inlet assembly delivers hot air toward the lower sealing box structure and the drying box to dry the fruit slices moving downward along the spiral ribs. The paddle assembly can flatten the stacked fruit slices, and combined with the gap grooves on the spiral ribs, it can greatly improve the all-round contact of the fruit slices with the hot air.

[0026] (III) Beneficial effects

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The mobile driving structure can drive the drying box and the spiral ribs to move up and down, and the second motor can drive the drying box to rotate horizontally, so that during the horizontal rotation and up and down lifting of the drying box and the spiral ribs, the fruit slices can move downward along the spiral ribs, and in the process of up and down shaking, the fruit slices are directly separated and loosened, which can greatly improve the all-round contact of the fruit slices with hot air;

[0029] 2. The spiral ribs realize the drying of the preserved fruits in the spiral up and down direction. The spiral feeding drying method reduces the space occupied by the overall equipment under the same drying stroke;

[0030] 3. The gap grooves on the spiral ribs have two functions. The first function is to ventilate the fruit, thereby increasing the contact area between the hot air and the fruit when the fruit is in contact with the spiral ribs. The second function is to increase the elasticity of the spiral ribs during the up and down movement. Through its own elasticity, the time for the gap between the fruit and the spiral ribs to separate is increased when the fruit moves up and down.

[0031] 4. After the dried hot air is discharged from the upper box, it passes through the moisture filter box to remove moisture and dry, and then it can re-enter the heating wind box for heating, thereby realizing the recycling of hot air and saving energy;

[0032] 5. The paddle assembly can flatten the stacked fruit slices, and combined with the gap grooves on the spiral ribs, it can greatly improve the all-round contact of the fruit slices with hot air. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the present invention in the first direction;

[0036] Figure 3 is a first three-dimensional cross-sectional structural schematic diagram of the present invention;

[0037] Figure 4 It is a schematic diagram of the partial enlarged structure of A of the present invention;

[0038] Figure 5 is a second three-dimensional cross-sectional structural schematic diagram of the present invention;

[0039] Figure 6 It is a schematic diagram of the partial enlarged structure of B of the present invention;

[0040] Figure 7 It is a schematic diagram of the overall three-dimensional structure of the present invention in the second direction;

[0041] Figure 8 It is a schematic diagram of the internal structure of the present invention.

[0042] The reference numerals are as follows: 1. base; 101. support plate; 102. frame; 103. material receiving box; 2. drying box; 201. inner central shaft; 202. cone sleeve; 203. outer edge plate; 204. material trough; 205. outer sleeve; 206. opening slide; 207. material collecting chamber; 3. paddle assembly; 301. first gear; 302. second gear; 303. axle; 304. paddle; 305. cover; 306. first motor; 4. upper sealing structure; 401. upper box body; 402. conveyor belt; 403. feed port; 5. lower sealing structure; 501, lower box body; 502, discharge port; 6, drying cycle air inlet assembly; 601, heating bellows; 602, air supply duct; 603, circulating air duct; 604, electromagnetic three-way valve; 605, moisture filter box; 606, air inlet duct; 7, second motor; 8, rotating telescopic connection structure; 801, first outer convex ring; 802, bearing; 803, second outer convex ring; 804, spring connecting plate; 9, mobile drive structure; 901, electric telescopic rod; 902, slider; 10, spiral rib plate; 1001, gap groove; 1002, end shaft; 11, digital display control panel. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1-Figure 8 As shown, the present invention provides a drying device for preparing preserved fruits, comprising a base 1, a drying box 2 and a digital display control panel 11, the outer shape of the drying box 2 is an axially vertical cylindrical shape, the interior of the drying box 2 is hollow and a material collecting chamber 207 is arranged inside the upper end, an upper sealing box structure 4 for feeding into the material collecting chamber 207 is arranged at the upper part of the drying box 2, wherein the upper sealing box structure 4 comprises an upper box body 401, a feeding port 403 is arranged at one side of the upper end of the upper box body 401, a conveyor belt 402 is arranged at the feeding port 403, a lower sealing box structure 5 for leading out the preserved fruits therein is arranged at the opening of the lower end of the drying box 2, the drying box 2 is rotatably arranged between the upper sealing box structure 4 and the lower sealing box structure 5, a second motor 7 for driving the drying box 2 to rotate is arranged on the lower sealing box structure 5, and a drying circulation air inlet component 6 for introducing dry gas therein and for recycling the gas discharged from the upper sealing box structure 4 is arranged on one side of the lower sealing box structure 5;

[0045] An inner central shaft 201 is provided at the central axis of the drying box 2, and an outer sleeve 205 is provided along the outer shape of the inner central shaft 201 for sliding along its axial direction. A moving driving structure 9 for driving the outer sleeve 205 to reciprocate along its axial direction is provided on the inner central shaft 201. A spiral rib 10 is provided between the inner wall of the drying box 2 and the outer wall of the outer sleeve 205. A paddle assembly 3 for evenly spreading the preserved fruits on the spiral rib 10 is provided on the drying box 2. The lower end of the inner central shaft 201 is connected to the output shaft end of the second motor 7, and the output end of the digital display control panel 11 is electrically connected to the input end of the second motor 7. Compared with the belt drying equipment in the prior art, the spiral rib 10 realizes the drying of the preserved fruits in the spiral up and down direction, and the space occupied by the overall equipment is reduced under the same drying stroke.

[0046] See the instruction manual Figure 1 As shown, two support plates 101 distributed in parallel are fixedly arranged on the upper side of the base 1, and a rectangular parallelepiped frame 102 is fixedly arranged between the two support plates 101 by bolts. The drying box 2 is rotatably arranged on the frame 102 through a rotating telescopic connection structure 8, and the upper sealing box structure 4 and the lower sealing box structure 5 are respectively fixedly arranged on the frame 102. The lower sealing box structure 5 includes a lower box body 501, and a discharge port 502 is opened on the bottom side of the lower box body 501. A receiving box 103 located below the discharge port 502 is arranged on the upper side of the base 1. In actual application, the bottom side of the lower box body 501 is inclined, and the discharge port 502 is opened at the lowest point of the lower end of the lower box body 501, so as to facilitate the dried preserved fruits to slide out and fall into the receiving box 103 when they fall to the bottom of the lower box body 501.

[0047] See the instruction manual Figure 3 and Figure 8 As shown, an outer edge plate 203 with a shape of wide upper part and narrow lower part is provided at the edge of the upper opening of the collection chamber 207. In actual application, the outer edge plate 203 serves to collect fruit slices. A V-shaped bottom surface is formed inside the collection chamber 207, which can facilitate the fruit slices to slide down to the material trough 204. A material trough 204 for communicating with the interior of the drying box 2 is provided at the lowest point of the bottom side of the collection chamber 207. The upper end of the outer sleeve 205 is fixedly connected to the middle position of the material trough 204. The upper end of the outer sleeve 205 protrudes from the inner bottom surface of the collection chamber 207 and is fixedly provided with a conical sleeve 202.

[0048] See the instruction manual Figure 3 and Figure 5As shown, the mobile driving structure 9 includes an electric telescopic rod 901 fixedly arranged in the inner central shaft 201, a guide slot is provided in the inner central shaft 201, a slider 902 is slidably arranged in the guide slot, an open slot 206 connected to the guide slot is provided on the outer side of the inner central shaft 201, the extension direction of the open slot 206 is consistent with the axial direction of the inner central shaft 201, one side of the slider 902 passes through the open slot 206 and is fixedly connected to the inner wall of the outer sleeve 205, and the output end of the digital display control panel 11 is electrically connected to the input end of the electric telescopic rod 901. Through the above-mentioned specific structural design, the push rod extension of the electric telescopic rod 901 can drive the slider 902 to move back and forth in the guide slot, thereby driving the spiral rib plate 10 to move up and down, thereby realizing the up and down shaking of the preserved fruits on the spiral rib plate 10, and can also drive the aggregate chamber 207 to move up and down, so that the fruit slices in the aggregate chamber 207 can be easily discharged from the material trough 204.

[0049] See the instruction manual Figure 5 , Figure 6 and Figure 8 As shown, there are two rotating telescopic connection structures 8, which are opposite to each other at the two ends of the drying box 2 along its axial direction. The rotating telescopic connection structure 8 includes a first outer convex ring 801 and a second outer convex ring 803 distributed in parallel. The first outer convex ring 801 and the second outer convex ring 803 are respectively fixedly sleeved on the outside of the drying box 2. The outside of the drying box 2 is provided with a plurality of spring connection plates 804 evenly distributed with its axis as the center. The upper and lower ends of each spring connection plate 804 are respectively fixedly connected to the first outer convex ring 801 and the second outer convex ring 803. The first outer convex ring 801 is rotatably connected to the frame 102 through a bearing 802. Through the above-mentioned specific structural design, in order to ensure the stability of the drying box 2 in the process of moving up and down under the drive of the mobile driving structure 9 and horizontally rotating under the drive of the second motor 7, the drying box 2 can be elastically displaced in the up and down directions through the spring connection plate 804, and can also be linked with the spring connection plate 804 to realize the horizontal rotation and up and down movement of the drying box 2 under the support of the frame 102.

[0050] See the instruction manual Figure 4As shown, the spiral rib plate 10 is provided with a plurality of gap grooves 1001 arranged in a concentric circle with the central axis of the inner central shaft rod 201 as the center, and the two ends of the spiral rib plate 10 are respectively fixedly provided with end shafts 1002, and the two ends of the end shaft 1002 are respectively fixedly connected to the outer wall of the outer sleeve 205 and the inner wall of the drying box 2. Through the above-mentioned specific structural design, the gap groove 1001 has two functions. The first function is to play a ventilation role, so that when the preserved fruit is in contact with the spiral rib plate 10, the contact area between the hot air and the preserved fruit can also be increased. The second function is to increase the elasticity of the spiral rib plate 10 during the up and down movement. Through its own elasticity, the separation time of the preserved fruit and the spiral rib plate 10 is increased when it is up and down.

[0051] See the instruction manual Figure 4 As shown, the blade assembly 3 includes an axle 303 arranged between the pitch gaps of the spiral ribs 10, and the outer side of each axle 303 is provided with more than three blades 304 evenly distributed around its axis, the axle 303 and the drying box 2 are rotatably connected to each other and one end passes through the drying box 2 and is fixedly connected to the first gear 301, and the two adjacent first gears 301 are meshed and connected to each other through the second gear 302, and the shaft end of the second gear 302 is rotatably connected to the drying box 2 through the gear shaft, and the first gear 301 and the outer side of the first gear 301 are provided with a cover 305, one of the first gears 301 is driven to rotate by a first motor 306 fixedly arranged on the cover 305, and the output end of the digital display control panel 11 is electrically connected to the input end of the first motor 306. In practical applications, the rotation of the output shaft of the first motor 306 can drive the first gear 301 connected thereto to rotate. The rotation of the first gear 301 drives the remaining first gears 301 to rotate in the same direction at the same time through the second gear 302, thereby driving the blade 304 thereon to rotate through the axle 303, thereby achieving the flattening of the stacked fruit slices to avoid the stacking affecting the drying effect.

[0052] See the instruction manual Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the drying cycle air inlet assembly 6 includes a heating air box 601 arranged on the base 1. In actual application, the heating air box 601 is provided with an electric heating structure and a temperature sensor for heating the incoming air. The existing technology is adopted and is well known to those skilled in the art. The air outlet of the heating air box 601 is connected to one end of the air supply pipe 602, and the other end of the air supply pipe 602 is connected to the lower box body 501. The air inlet of the heating air box 601 is connected to one end of the circulating air duct 603, and the other end of the circulating air duct 603 is connected to the upper box body 401. A moisture filter box 605 is arranged on the circulating air duct 603, and an air inlet pipe 606 is connected to the circulating air duct 603 located between the heating air box 601 and the moisture filter box 605. An electromagnetic three-way valve 604 is arranged at the connection between the circulating air duct 603 and the air inlet pipe 606, and the output end of the digital display control panel 11 is electrically connected to the input end of the electromagnetic three-way valve 604. Through the above-mentioned specific structural design, after the dried hot air is discharged from the upper box body 401, it passes through the moisture filter box 605 to remove moisture and dry it, and then it can re-enter the heating air box 601 for heating, thereby realizing the recycling of hot air and saving energy.

[0053] Working principle and technical effect of the present invention:

[0054] After the kiwi fruit is peeled and sliced, the conveyor belt 402 transports the sliced ​​fruit slices from the feed port 403 into the upper box body 401 and drops them into the collection chamber 207. The output shaft of the second motor 7 rotates to drive the inner central shaft 201 to rotate, thereby driving the drying box 2 to rotate through the outer sleeve 205. When the drying box 2 rotates, the fruit slices are guided out from the material chute 204 in the collection chamber 207 and fall onto the spiral ribs 10 in the drying box 2 in a circular shape. At this time, the mobile drive structure 9 drives the inner central shaft 201, the outer sleeve 205, and the drying box 2 and the spiral ribs 10 reciprocate up and down; during the simultaneous horizontal rotation and up and down lifting of the drying box 2 and the spiral ribs 10, the fruit slices can move downward along the spiral ribs 10, and in the process of up and down shaking, the fruit slices are directly separated and loosened; the drying cycle air inlet component 6 sends hot air toward the lower sealing box structure 5 and the drying box 2 to dry the fruit slices moving downward along the spiral ribs 10, and the paddle component 3 can flatten the stacked fruit slices, and cooperate with the gap grooves 1001 provided on the spiral ribs 10 to greatly improve the all-round contact of the fruit slices with the hot air.

[0055] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A drying device for preparing preserved fruits, characterized in that: The drying box (2) comprises a base (1), a drying box (2) and a digital display control panel (11); the drying box (2) is in the shape of an axially vertical cylindrical body; the interior of the drying box (2) is hollow and a material collecting chamber (207) is provided at the upper end; an upper sealing box structure (4) for feeding materials into the material collecting chamber (207) is provided at the upper part of the drying box (2); a lower sealing box structure (5) for guiding the preserved fruits therein is provided at the lower opening of the drying box (2); the drying box (2) is rotatably arranged between the upper sealing box structure (4) and the lower sealing box structure (5); a second motor (7) for driving the drying box (2) to rotate is provided on the lower sealing box structure (5); and a drying circulation air inlet component (6) for introducing dry gas therein and for recycling the gas discharged from the upper sealing box structure (4) is provided on one side of the lower sealing box structure (5); An inner central shaft (201) is arranged at the center axis of the drying box (2); an outer sleeve (205) is arranged on the outer shape of the inner central shaft (201) so as to slide along its axial direction; a moving driving structure (9) for driving the outer sleeve (205) to reciprocate along its axial direction is arranged on the inner central shaft (201); a spiral rib plate (10) is arranged between the inner wall of the drying box (2) and the outer wall of the outer sleeve (205); a blade shifting assembly (3) for evenly spreading the preserved fruits on the spiral rib plate (10) is arranged on the drying box (2); the lower end of the inner central shaft (201) is connected to the output shaft end of the second motor (7); and the output end of the digital display control panel (11) is electrically connected to the input end of the second motor (7).

2. A drying device for preparing preserved fruits according to claim 1, characterized in that: Two support plates (101) are fixedly arranged in parallel on the upper side of the base (1); a rectangular parallelepiped frame (102) is fixedly arranged between the two support plates (101) by bolts; the drying box (2) is rotatably arranged on the frame (102) by a rotating telescopic connection structure (8); an upper sealing box structure (4) and a lower sealing box structure (5) are respectively fixedly arranged on the frame (102); the lower sealing box structure (5) comprises a lower box body (501); a discharge port (502) is provided on the bottom side of the lower box body (501); and a receiving box (103) located below the discharge port (502) is arranged on the upper side of the base (1).

3. A drying device for preparing preserved fruits according to claim 1, characterized in that: An outer edge plate (203) having an outer shape that is wider at the top and narrower at the bottom is provided at the edge of the upper opening of the aggregate chamber (207); a V-shaped bottom surface is formed inside the aggregate chamber (207); a material passage trough (204) for communicating with the interior of the drying box (2) is provided through the lowest point of the bottom side of the aggregate chamber (207); the upper end of the outer sleeve (205) is fixedly connected to the middle position of the material passage trough (204); the upper end of the outer sleeve (205) protrudes from the inner bottom surface of the aggregate chamber (207) and is fixedly provided with a conical sleeve (202).

4. A drying device for preparing preserved fruits according to claim 1 or 3, characterized in that: The mobile driving structure (9) comprises an electric telescopic rod (901) fixedly arranged in an inner central shaft (201); a guide slot is provided in the inner central shaft (201); a slider (902) is slidably arranged in the guide slot; an open slot (206) is provided on the outer side of the inner central shaft (201) and is connected to the guide slot; the extension direction of the open slot (206) is consistent with the axial direction of the inner central shaft (201); one side of the slider (902) passes through the open slot (206) and is fixedly connected to the inner wall of the outer sleeve (205); and the output end of the digital display control panel (11) is electrically connected to the input end of the electric telescopic rod (901).

5. A drying device for preparing preserved fruits according to claim 2, characterized in that: The rotating and telescopic connection structures (8) are provided with two, and the two rotating and telescopic connection structures (8) are opposite to each other at two ends of the drying box (2) along its axial direction. The rotating and telescopic connection structures (8) include a first outer convex ring (801) and a second outer convex ring (803) which are distributed in parallel. The first outer convex ring (801) and the second outer convex ring (803) are respectively fixedly sleeved on the outer side of the drying box (2). The outer side of the drying box (2) is provided with a plurality of spring connection plates (804) which are evenly distributed around the axis of the drying box (2). The upper and lower ends of each spring connection plate (804) are respectively fixedly connected to the first outer convex ring (801) and the second outer convex ring (803). The first outer convex ring (801) is rotatably connected to the frame (102) via a bearing (802).

6. A drying device for preparing preserved fruits according to claim 1, characterized in that: The spiral rib plate (10) is provided with a plurality of gap grooves (1001) arranged in a concentric circle with the central axis of the inner central shaft (201) as the center, and end shafts (1002) are fixedly provided at both ends of the spiral rib plate (10), and the two ends of the end shaft (1002) are fixedly connected to the outer wall of the outer sleeve (205) and the inner wall of the drying box (2) respectively.

7. A drying device for preparing preserved fruits according to claim 1, characterized in that: The blade shifting assembly (3) comprises a wheel axle (303) arranged between the pitch gaps of the spiral rib plate (10), and each wheel axle (303) is provided with three or more blades (304) evenly distributed around its axis on the outer side, the wheel axle (303) is rotatably connected to the drying box (2), and one end of the wheel axle (303) passes through the drying box (2) and is fixedly connected to a first gear (301), two adjacent first gears (301) are meshed and connected to each other via a second gear (302), and the shaft end of the second gear (302) is rotatably connected to the drying box (2) via a gear shaft, and a cover (305) is provided on the outer side of the first gear (301) and the first gear (301), and one of the first gears (301) is driven to rotate by a first motor (306) fixedly arranged on the cover (305), and the output end of the digital display control panel (11) is electrically connected to the input end of the first motor (306).

8. A drying device for preparing preserved fruits according to claim 1, characterized in that: The upper box sealing structure (4) comprises an upper box body (401), a feeding port (403) is arranged on one side of the upper end of the upper box body (401), and a conveyor belt (402) is arranged at the feeding port (403).

9. A drying device for preparing preserved fruits according to claim 1, characterized in that: The drying circulation air inlet assembly (6) comprises a heating air box (601) arranged on the base (1); the air outlet of the heating air box (601) is connected to one end of an air supply pipe (602); the other end of the air supply pipe (602) is connected to the lower box (501); the air inlet of the heating air box (601) is connected to one end of a circulation air pipe (603); the other end of the circulation air pipe (603) is connected to the upper box (401); a moisture filter box (605) is arranged on the circulation air pipe (603); the circulation air pipe (603) located between the heating air box (601) and the moisture filter box (605) is connected to an air inlet pipe (606); an electromagnetic three-way valve (604) is arranged at the connection between the circulation air pipe (603) and the air inlet pipe (606); the output end of the digital display control panel (11) is electrically connected to the input end of the electromagnetic three-way valve (604).

10. A drying method for preparing preserved fruits, using the drying device for preparing preserved fruits according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The conveyor belt (402) transports the sliced ​​fruit slices from the feed port (403) into the upper box body (401), and the slices fall into the collection chamber (207). The output shaft of the second motor (7) rotates to drive the inner central shaft (201) to rotate, thereby driving the drying box (2) to rotate through the outer sleeve (205); S2: When the drying box (2) rotates, the fruit slices are discharged from the material chute (204) in the material collecting chamber (207) and fall onto the spiral rib plate (10) in the drying box (2) in a circular shape. At this time, the moving driving structure (9) drives the inner central shaft (201), the outer sleeve (205), the drying box (2) and the spiral rib plate (10) to move up and down reciprocatingly; S3: During the simultaneous horizontal rotation and up-and-down lifting of the drying box (2) and the spiral rib plate (10), the fruit slices can move downward along the spiral rib plate (10), and during the up-and-down lifting process, the fruit slices are directly separated and loosened; S4: The drying cycle air inlet assembly (6) delivers hot air into the lower sealing box structure (5) and the drying box (2) to dry the fruit slices moving downward along the spiral ribs (10). The paddle assembly (3) can flatten the stacked fruit slices, and in combination with the gap grooves (1001) provided on the spiral ribs (10), the all-round contact of the fruit slices with the hot air can be greatly improved.

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