Low-temperature drying device for mulberry leaves

Abstract

The mulberry leaf low-temperature drying device comprises a drying mechanism and a containing mechanism assembled in the drying mechanism, the drying mechanism comprises a drying box, and air outlet pipes are fixedly installed at the top and the bottom of the inner wall of the drying box; a plurality of heating pipes which are vertically arranged and distributed at equal intervals are fixedly installed at the rear end of the inner wall of the drying box, the placing mechanism comprises a bottom frame which is rotatably installed in the drying box, the bottom frame and the drying box are rotatably installed through a rotating shaft, and a cover frame is installed at the top of the bottom frame in a hinged mode. According to the low-temperature drying device for the mulberry leaves, by arranging the placing mechanism, the flatly-laid mulberry leaves can be pressed and held, through the rotation effect of the placing mechanism, the mulberry leaves are in a static state in the uniform drying process of the mulberry leaves, movement collision does not occur, and the situation that chippings fall off when the mulberry leaves are turned over is effectively avoided; and more convenience is brought to processing of the mulberry leaves.

Description

Technical Field

[0001] The utility model relates to the technical field of mulberry leaf processing, in particular to a low-temperature drying device for mulberry leaves. Background Art

[0002] In the fields of agriculture and food processing, mulberry leaves, as a traditional and highly valuable plant resource, have attracted much attention due to their rich nutrients and unique medicinal value. Mulberry leaves are rich in various bioactive ingredients, such as 1-deoxynojirimycin (DNJ), a natural α-glucosidase inhibitor that has a significant effect on regulating blood sugar levels. At the same time, mulberry leaves are also rich in γ-aminobutyric acid (GABA), phytol, flavonoids, and various vitamins and minerals. These ingredients have many benefits for human health. However, the preservation and processing of mulberry leaves has always been a challenge. Due to the high water content of mulberry leaves, if they are not properly dried, they are very likely to mold and spoil, thus affecting their quality and nutritional value. Low-temperature drying technology is a more common drying method in the mulberry leaf drying process.

[0003] However, in the process of drying mulberry leaves, in order to ensure that the mulberry leaves can be dried evenly, it is usually necessary to flip the mulberry leaves. During the flipping process, the mulberry leaves are prone to collision. The mulberry leaves are in a brittle state when drying and are easily broken when collided, causing the debris to scatter in the drying equipment, which brings more trouble to the mulberry leaf processing. For this reason, the applicant proposes a low-temperature drying device for mulberry leaves to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a mulberry leaf low-temperature drying device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mulberry leaf low-temperature drying device, comprising a drying mechanism and a placement mechanism assembled inside the drying mechanism;

[0006] The drying mechanism comprises a drying box, the top and bottom of the inner wall of the drying box are fixedly mounted with air outlet pipes, and the rear end of the inner wall of the drying box is fixedly mounted with a plurality of heating pipes arranged at equal distances in a vertical direction;

[0007] The placement mechanism includes a bottom frame rotatably mounted inside the drying box. The bottom frame and the drying box are rotatably mounted via a rotating shaft. A cover frame is hingedly mounted on the top of the bottom frame. The inner sides of the bottom frame and the cover frame are fixedly connected to a support net via a tension spring.

[0008] Preferably, a refrigerator is fixedly installed on one side of the drying box, a delivery pipe is connected between the refrigerator and the air outlet pipe, and a box door is hingedly installed at the front end of the drying box.

[0009] Preferably, a vacuum pump is fixedly installed on the top of the drying box, and an exhaust pipe is connected between the vacuum pump and the drying box.

[0010] Preferably, a motor is fixedly mounted at the rear end of the drying box, and a conveying shaft and a rotating shaft of the motor are installed via a belt drive.

[0011] Preferably, the surface of the bottom frame is provided with two symmetrically arranged receiving grooves, and support rods for use with the cover frame are movably installed inside the receiving grooves.

[0012] Preferably, two symmetrically distributed fixing knobs are threadedly mounted on the front end of the cover frame, and two fixing holes corresponding to the fixing knobs are opened on the front end of the bottom frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The mulberry leaf low-temperature drying device is provided with a placing mechanism, which can spread the mulberry leaves flat on the supporting net on the bottom frame; by closing the cover frame and the bottom frame, the mulberry leaves can be conveniently pressed and held by using the supporting net on the bottom frame and the cover frame; the mulberry leaves can be rotated by the overall rotation of the placing mechanism, so that the mulberry leaves can be kept in a static state during the uniform drying process, and the mulberry leaves will not collide with each other in movement, which can effectively avoid the falling of debris caused by turning the mulberry leaves, and bring more convenience to the processing of mulberry leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative work.

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a rear view structural diagram of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the drying box of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the placement mechanism of the utility model;

[0020] Figure 5 This is a schematic diagram of the bottom frame structure of the present utility model.

[0021] In the figure: 1. Drying mechanism; 101. Drying box; 102. Box door; 103. Exhaust pipe; 104. Heating pipe; 2. Refrigerator; 201. Delivery pipe; 3. Vacuum pump; 301. Exhaust pipe; 4. Motor; 401. Belt; 5. Placement mechanism; 501. Bottom frame; 502. Support net; 503. Tension spring; 504. Rotating shaft; 505. Cover frame; 506. Fixing knob; 507. Support rod; 508. Storage slot; 509. Fixing hole. DETAILED DESCRIPTION

[0022] The following embodiments will be described in detail with reference to the accompanying drawings. Similar or identical parts are denoted by the same reference numerals in the drawings and descriptions. In actual applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in the present invention are intended only to illustrate the present invention and are not intended to limit its scope. Any obvious modifications or variations to the present invention do not depart from the spirit and scope of the present invention.

[0023] See also Figure 1-5 As shown, the utility model proposes a low-temperature drying device for mulberry leaves, including a drying mechanism 1 and a placing mechanism 5 assembled inside the drying mechanism 1, the drying mechanism 1 includes a drying box 101, the top and bottom of the inner wall of the drying box 101 are fixedly installed with an air outlet pipe 103, the rear end of the inner wall of the drying box 101 is fixedly installed with a plurality of heating tubes 104 arranged vertically and equidistantly, the placing mechanism 5 includes a bottom frame 501 rotatably installed inside the drying box 101, the bottom frame 501 and the drying box 101 are rotatably installed through a rotating shaft 504, the top of the bottom frame 501 is hingedly installed with a cover frame 505, and the inner sides of the bottom frame 501 and the cover frame 505 are fixedly connected to a support net 502 through a tension spring 503.

[0024] Based on the arrangement of the above structure, the mulberry leaf low-temperature drying device is composed of a drying mechanism 1 and a placing mechanism 5, wherein the mulberry leaves are evenly spread in the placing mechanism 5, so that the mulberry leaves can be pressed and held, and the mulberry leaves can be evenly dried by the drying mechanism 1 through the rotation of the placing mechanism 5, without the need to turn the mulberry leaves over, so that the situation of debris falling during the drying process of the mulberry leaves is reduced. Specifically, in the working process, by flipping the cover frame 505 upward, the mulberry leaves can be evenly spread on the support net 502 on the bottom frame 501, and by closing the cover frame 505 and closing and fixing the cover frame 505 and the bottom frame 501, the bottom frame 501 and the support net on the cover frame 505 can be made uniform. 502 presses and holds the mulberry leaves. Through the elastic action of the tension spring 503, the support net 502 can produce a flexible pressing effect, which can press and hold the mulberry leaves without causing damage to the mulberry leaves. The outlet pipe 103 can conveniently spray cold air onto the placement mechanism 5, which can conveniently freeze the mulberry leaves, so that the moisture in the mulberry leaves can form ice crystals. Through the heating effect of the heating tube 104, the ice crystals can be directly sublimated into water vapor, so that the mulberry leaves are dried. The rotation of the rotating shaft 504 can make the entire placement mechanism 5 rotate, so that the mulberry leaves can be evenly dried during the rotation process, and there is no need to turn the mulberry leaves over, which effectively avoids the situation where debris falls due to movement and collision between mulberry leaves.

[0025] Furthermore, a refrigerator 2 is fixedly mounted on one side of the drying box 101. A delivery pipe 201 is connected between the refrigerator 2 and the air outlet pipe 103. A door 102 is hingedly mounted on the front end of the drying box 101. The refrigerator 2 generates cold air, which is delivered to the air outlet pipe 103 via the delivery pipe 201, making it convenient to use the cold air to freeze the mulberry leaves.

[0026] Furthermore, a vacuum pump 3 is fixedly installed on the top of the drying box 101, and an exhaust pipe 301 is connected between the vacuum pump 3 and the drying box 101. The vacuum pump 3 can use the exhaust pipe 301 to evacuate the drying box 101, so that the moisture of the frozen mulberry leaves can be quickly evaporated in the vacuum environment, thereby improving the drying effect.

[0027] Furthermore, a motor 4 is fixedly mounted at the rear end of the drying box 101, and a belt 401 is connected between the conveyor shaft of the motor 4 and the rotating shaft 504. The motor 4 can provide power to the rotating shaft 504, and the belt 401 can be used to drive the rotating shaft 504 to rotate, thereby conveniently driving the entire placement mechanism 5 to rotate.

[0028] Furthermore, two symmetrically arranged storage slots 508 are provided on the surface of the bottom frame 501. Support rods 507 for use with the cover frame 505 are movably installed inside the storage slots 508. By flipping the support rods 507 out of the storage slots 508, the cover frame 505 can be supported after it is opened, allowing staff to easily spread mulberry leaves flat on the support net 502 on the bottom frame 501. By flipping the support rods 507 back into the storage slots 508, the surface of the bottom frame 501 can be made flat, without affecting the closing effect between the cover frame 505 and the bottom frame 501.

[0029] Furthermore, two symmetrically arranged fixing knobs 506 are threadedly mounted on the front end of the cover frame 505, and two fixing holes 509 corresponding to the fixing knobs 506 are defined on the front end of the base frame 501. By rotating the fixing knobs 506, they can be screwed into the fixing holes 509, thereby conveniently fixing the cover frame 505 to the base frame 501 and preventing the cover frame 505 from opening during rotation.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A mulberry leaf low-temperature drying device, characterized in that: It comprises a drying mechanism (1) and a placement mechanism (5) assembled inside the drying mechanism (1); The drying mechanism (1) comprises a drying box (101), the top and bottom of the inner wall of the drying box (101) are fixedly mounted with air outlet pipes (103), and the rear end of the inner wall of the drying box (101) is fixedly mounted with a plurality of heating pipes (104) arranged at equal intervals in a vertical direction; The placement mechanism (5) comprises a bottom frame (501) rotatably mounted inside the drying box (101), the bottom frame (501) and the drying box (101) being rotatably mounted via a rotating shaft (504), a cover frame (505) being hingedly mounted on the top of the bottom frame (501), and the inner sides of the bottom frame (501) and the cover frame (505) being fixedly connected to a support net (502) via a tension spring (503).

2. A mulberry leaf low-temperature drying device according to claim 1, characterized in that: A refrigerator (2) is fixedly mounted on one side of the drying box (101), a delivery pipe (201) is connected between the refrigerator (2) and the air outlet pipe (103), and a door (102) is hingedly mounted on the front end of the drying box (101).

3. The low-temperature drying device for mulberry leaves according to claim 1, characterized in that: A vacuum pump (3) is fixedly installed on the top of the drying box (101), and an exhaust pipe (301) is connected between the vacuum pump (3) and the drying box (101).

4. The mulberry leaf low-temperature drying device according to claim 1, characterized in that: A motor (4) is fixedly mounted on the rear end of the drying box (101), and a conveying shaft of the motor (4) and a rotating shaft (504) are driven by a belt (401).

5. The mulberry leaf low-temperature drying device according to claim 1, characterized in that: The surface of the bottom frame (501) is provided with two symmetrically arranged receiving grooves (508), and a support rod (507) for use with the cover frame (505) is movably installed inside the receiving groove (508).

6. The mulberry leaf low-temperature drying device according to claim 1, characterized in that: The front end of the cover frame (505) is threadedly mounted with two symmetrically distributed fixing knobs (506), and the front end of the bottom frame (501) is provided with two fixing holes (509) corresponding to the fixing knobs (506).

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