Crystallization equipment and crystallization method for berry tea

Abstract

The invention relates to the technical field of tea processing, and particularly provides devitrification equipment and a devitrification method for berry tea. The devitrification apparatus for berry tea comprises: a housing; the plurality of driving rollers are rotatably arranged on the machine shell; the first conveying belt and the second conveying belt are arranged in the machine shell and arranged on the multiple transmission rollers in a sleeving mode. The belt surface parts of the first conveyor belt and the second conveyor belt are opposite and are used for clamping and conveying the raspberry tea; the opposite belt surfaces of the first conveying belt and the second conveying belt are in a repeatedly bent S shape in the vertical direction; at each bending part, the distance between the first conveying belt and the second conveying belt is increased, so that a cavity is formed; the temperature control device is arranged at the bottom of the machine shell and used for maintaining the temperature of air in the machine shell within a preset temperature range. According to the scheme, the berry tea is extruded into a thin layer, so that the temperature uniformity of the berry tea is improved. And through the arrangement of the cavity, the berry tea slides and rolls in the cavity, so that the temperature uniformity of the berry tea is further improved, and the crystallization effect of the berry tea is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tea processing, in particular to a crystallization device and a crystallization method for berry tea. Background Art

[0002] During the crystallization process of berry tea, the berry tea is placed in a suitable temperature environment. The flavonoids in the berry tea will penetrate into the surface of the tea leaves and adhere to the tea leaves during the drying process, gradually crystallizing to form a uniform layer of white frost. The white frost on the surface of berry tea is a reflection of its quality. Only berry tea rich in flavonoids and with sophisticated production technology can form a uniform white frost.

[0003] The prior art of crystallizing berry tea usually involves wrapping the berry tea with cloth and then placing it in a constant temperature chamber for crystallization. However, the crystallization of berry tea has high temperature requirements. Once the central temperature of the berry tea exceeds 60 degrees Celsius, the berry tea needs to be taken out and deblocked for cooling. When the berry tea is piled up and placed in a constant temperature chamber, the temperature of the berry tea easily rises, resulting in a large local temperature difference, which not only affects the crystallization efficiency of the berry tea, but also reduces the crystallization quality of the berry tea. Summary of the invention

[0004] One object of the present invention is to improve the temperature uniformity of berry tea during the crystallization process, thereby improving the crystallization effect of berry tea.

[0005] Another object of the present invention is to improve the degree of automation of the berry tea crystallization equipment and improve the crystallization efficiency of the berry tea.

[0006] In particular, the present invention provides a crystallization device for berry tea, comprising: a casing; a plurality of drive rollers rotatably disposed on the casing; a first conveyor belt and a second conveyor belt disposed in the casing and sleeved on the plurality of drive rollers; the belt surfaces of the first conveyor belt and the second conveyor belt are opposed to each other, and are used to clamp the berry tea and convey it; the belt surfaces of the first conveyor belt and the second conveyor belt are repeatedly bent in the vertical direction in an S-shape; and at each bend, the spacing between the first conveyor belt and the second conveyor belt increases to form a cavity; a temperature control device is disposed at the bottom of the casing, and is used to maintain the air in the casing within a preset temperature range.

[0007] Furthermore, the crystallization equipment for berry tea also includes: a plurality of stirring rods, which are rotatably arranged on the casing and located in the plurality of cavities; wherein the plurality of stirring rods are arranged in a one-to-one correspondence with the plurality of cavities.

[0008] Furthermore, the rotation speed of the stirring rod is inversely proportional to the rotation speed of the driving roller.

[0009] Furthermore, the first conveyor belt and the second conveyor belt are made of a non-elastic material with good air permeability.

[0010] Furthermore, first limiting ridges protruding inward are respectively formed at both ends of the first conveyor belt, and second limiting ridges protruding inward are respectively formed at both ends of the second conveyor belt; limiting grooves are respectively formed at both ends of each transmission roller; when the first conveyor belt or the second conveyor belt is in contact with the transmission roller, the first limiting ridge or the second limiting ridge is inserted into the limiting groove.

[0011] Furthermore, a first supporting frame is arranged inside the first limiting convex strip, and a second supporting frame is arranged inside the second limiting convex strip; the first supporting frame and the second supporting frame are both made of metal material.

[0012] Furthermore, first toothed belts protruding outward are formed at both ends of the first conveyor belt, and second toothed belts protruding outward are formed at both ends of the second conveyor belt; the first toothed belt and the second toothed belt are meshed at the opposite belt surfaces of the first conveyor belt and the second conveyor belt.

[0013] Furthermore, the crystallization device for berry tea also includes: a plurality of limiting plates, which are respectively arranged at both ends of the plurality of cavities to close the plurality of cavities.

[0014] Furthermore, a feed port is arranged at the top of the casing, and a discharge port is arranged at the bottom of the casing; the feed port and the discharge port are opposite to the belt surface of the first conveyor belt or the second conveyor belt.

[0015] In particular, the present invention also provides a crystallization method for berry tea, which uses any of the above-mentioned crystallization equipment to crystallize the berry tea, including: starting the temperature control device to maintain the air in the casing within a preset temperature range; adding berry tea to be crystallized through the feed port at the top of the casing; starting the transmission roller to drive the first conveyor belt and the second conveyor belt to rotate, so that the berry tea moves and completes crystallization; and taking out the berry tea that has completed crystallization through the discharge port at the bottom of the casing.

[0016] The beneficial effects of the present invention are: The crystallization equipment for berry tea of ​​the present invention, by setting a first conveyor belt and a second conveyor belt that are partially opposite to each other, uses the first conveyor belt and the second conveyor belt to extrude the berry tea into a flat thin layer, thereby improving the overall temperature uniformity of the berry tea, and further ensuring the crystallization effect of the berry tea. The belt surfaces relative to the first conveyor belt and the second conveyor belt are set to be repeatedly bent in an S-shape, which extends the conveying path of the berry tea and ensures that the crystallization time of the berry tea is sufficient. A cavity is set at each bend, so that the berry tea is transported to the cavity, slides and rolls under the action of gravity, thereby further improving the temperature uniformity of the berry tea and enhancing the crystallization effect of the berry tea. By setting a temperature control device, the air temperature in the casing is maintained within a preset temperature range, so that the berry tea is in a temperature environment suitable for crystallization, thereby improving the crystallization effect and efficiency of the berry tea.

[0017] Furthermore, the crystallization device for berry tea of ​​the present invention, by arranging a stirring rod in the cavity, stirs and breaks up the berry tea, thereby further improving the overall temperature uniformity of the berry tea and avoiding the accumulation of berry tea resulting in excessive local temperature difference affecting the crystallization effect.

[0018] The crystallization method for berry tea of ​​the present invention adopts the above-mentioned crystallization equipment for berry tea, and thus the beneficial technical effects of the above-mentioned crystallization equipment for berry tea are also possessed by the crystallization method for berry tea of ​​the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. In the accompanying drawings: Figure 1 is a schematic structural diagram of a crystallization device for berry tea according to one embodiment of the present invention; Figure 2 is a schematic structural diagram of a crystallization device for berry tea according to an embodiment of the present invention; wherein the structures of the housing and the temperature control device are omitted; Figure 3 yes Figure 2 Schematic enlarged view of region A; Figure 4 is a structural schematic diagram of a crystallization device for berry tea from another perspective according to one embodiment of the present invention; Figure 5 is along Figure 4 A schematic cross-sectional view taken along the cutting line BB in FIG. Figure 6 is along Figure 5 A schematic cross-sectional view taken along the cutting line CC in FIG. Figure 7 yes Figure 6 Schematic enlargement of the middle region F; Figure 8 is along Figure 5 A schematic cross-sectional view taken along the cutting line DD in FIG. Fig. 9 is along Figure 5 A schematic cross-sectional view taken along the cutting line EE in FIG. Fig.10 yes Fig. 9 Schematic enlargement of the middle region G; Fig.11 is a schematic flow chart of a crystallization method for berry tea according to one embodiment of the present invention; in: 100, casing; 110, feed port; 111, fence; 120, discharge port; 130, support leg; 200, transmission roller; 210, limiting groove; 300, first conveyor belt; 310, first limiting convex strip; 311, first support frame; 320, first toothed belt; 400, second conveyor belt; 410, second limiting convex strip; 411, second support frame; 420, second toothed belt; 500, cavity; 510, stirring rod; 520, limiting disk; 600, temperature control device. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The terms "first" and "second" herein are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0022] Unless otherwise clearly defined and limited, the terms "installed", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0023] It should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] Refer to the following Figures 1 to 11 To describe a crystallization device and a crystallization method for berry tea provided by the present invention.

[0026] Figure 1 It is a schematic structural diagram of a crystallization device for berry tea according to an embodiment of the present invention. Figure 2 It is a schematic structural diagram of a crystallization device for berry tea according to an embodiment of the present invention; wherein, in order to better illustrate the assembly structure of the first conveyor belt 300 and the second conveyor belt 400, the structures of the housing 100 and the temperature control device 600 are hidden. Figure 3 yes Figure 2 Schematic enlargement of area A in the middle.

[0027] like Figure 1-3 As shown, this embodiment first provides a crystallization device for berry tea. The crystallization device for berry tea generally may include: a housing 100, a plurality of transmission rollers 200, a first conveyor belt 300, a second conveyor belt 400 and a temperature control device 600.

[0028] A plurality of transmission rollers 200 are rotatably disposed on the housing 100. A first conveyor belt 300 and a second conveyor belt 400 are disposed in the housing 100 and sleeved on the plurality of transmission rollers 200. The belt surfaces of the first conveyor belt 300 and the second conveyor belt 400 are opposed to each other, and are used to clamp and convey the berry tea. The opposing belt surfaces of the first conveyor belt 300 and the second conveyor belt 400 are repeatedly bent in an S-shape in the vertical direction; and at each bend, the spacing between the first conveyor belt 300 and the second conveyor belt 400 increases to form a cavity 500. The temperature control device 600 is disposed at the bottom of the housing 100, and is used to maintain the air in the housing 100 within a preset temperature range.

[0029] The solution of this embodiment is to set the first conveyor belt 300 and the second conveyor belt 400 with local belt surfaces facing each other, and use the first conveyor belt 300 and the second conveyor belt 400 to clamp the berry tea and squeeze the berry tea into a flat thin layer, thereby improving the overall temperature uniformity of the berry tea and ensuring the crystallization effect of the berry tea. The belt surfaces of the first conveyor belt 300 and the second conveyor belt 400 are set to be repeatedly bent in an S shape, which extends the transmission path of the berry tea and ensures that the berry tea has sufficient crystallization time during the entire transportation process. A cavity 500 is set at each bend, so that the berry tea is transported to the cavity 500, slides and rolls under the action of gravity, and is thus broken up, thereby improving the temperature uniformity of the berry tea and enhancing the crystallization effect of the berry tea. By setting a temperature control device 600, the air temperature in the housing 100 is maintained within a preset temperature range, so that the berry tea is within a temperature range suitable for crystallization, thereby improving the crystallization effect and efficiency of the berry tea.

[0030] Furthermore, the solution of this embodiment realizes automatic transportation of berry tea while ensuring the crystallization effect of berry tea by setting the first conveyor belt 300 and the second conveyor belt 400. The automated process of the crystallization process of berry tea greatly improves the production efficiency of berry tea and reduces labor costs.

[0031] In some preferred embodiments, the temperature control device 600 is configured to maintain the air temperature in the housing 100 within a temperature range of 50° C. to 60° C.

[0032] In some preferred embodiments, the housing 100 can be configured as a heat-insulating housing to improve the overall heat-insulating performance of the crystallization device for berry tea, improve the temperature stability of the air in the housing 100, and thus improve the crystallization effect.

[0033] In some preferred embodiments, the temperature control device 600 may include a temperature sensor and a heating device. The heating device may be configured as an air inlet pipe for delivering hot air within a preset temperature range into the housing 100. The temperature of the hot air may be preset between 50°C and 60°C. The heating device is disposed at the bottom of the housing 100, and utilizes the natural rising characteristics of hot air to improve the temperature uniformity of the air in the housing 100, thereby improving the crystallization effect of the berry tea.

[0034] In some preferred embodiments, at each bend where the cavity 500 is formed, the first conveyor belt 300 and the second conveyor belt 400 may share a driving roller 200. Furthermore, when the first conveyor belt 300 and the second conveyor belt 400 at the bend are first installed on the same driving roller 200, the length of the belt surface outside the driving roller 200 is reserved longer, so that the spacing between the first conveyor belt 300 and the second conveyor belt 400 is increased, thereby forming a cavity 500.

[0035] The crystallization device for berry tea can also be generally provided with a power device (e.g., a motor). The power device is connected to the transmission roller 200, provides power for the rotation of the transmission roller 200, and adjusts the rotation speed of the transmission roller 200. In some embodiments, the power device can provide power to multiple transmission rollers 200 at the same time to ensure that the rotation speeds of the multiple transmission rollers 200 remain consistent.

[0036] The distance between the first conveyor belt 300 and the second conveyor belt 400, which are arranged horizontally relative to each other, can be set according to actual needs. In some embodiments, the first conveyor belt 300 and the second conveyor belt 400, which are arranged horizontally relative to each other, can be closely adjacent to each other to minimize the layer thickness of the berry tea. In other embodiments, a certain gap can be formed between the first conveyor belt 300 and the second conveyor belt 400 to ensure the transportation efficiency of the berry tea.

[0037] like Figure 2 , 5 As shown, the crystallization device for berry tea may generally further include a plurality of stirring rods 510 .

[0038] The plurality of stirring rods 510 are rotatably disposed on the housing 100 and are located in the plurality of cavities 500. The plurality of stirring rods 510 are disposed in a one-to-one correspondence with the plurality of cavities 500.

[0039] The solution of this embodiment is to stir and break up the berry tea by providing a rotating stirring rod 510 in the cavity 500, thereby further improving the overall temperature uniformity of the berry tea, thereby avoiding the accumulation of berry tea and causing excessive local temperature difference to affect the crystallization effect.

[0040] In some preferred embodiments, at least one stirring blade may be provided on the stirring rod 510 to enhance the stirring effect, thereby further reducing the temperature difference of the berry tea and improving the crystallization quality of the berry tea.

[0041] The rotation speed of the stirring rod 510 is inversely proportional to the rotation speed of the driving roller 200 .

[0042] The crystallization time of berry tea is related to the season, and the crystallization time requirements of berry tea are different in different seasons. In some preferred embodiments, the crystallization time of berry tea in summer is 2 to 2.5 hours, and the crystallization time of berry tea in spring and autumn is 3 to 4 hours. Under the condition of ensuring the output efficiency of berry tea, the slower the rotation speed of the driving roller 200 (that is, the longer the crystallization time of berry tea), the more berry tea is clamped between the first conveyor belt 300 and the second conveyor belt 400.

[0043] In the solution of this embodiment, the rotation speed of the stirring rod 510 is set to be inversely proportional to the rotation speed of the transmission roller 200, so that the stirring effect of the stirring rod 510 is adapted to the amount of berry tea, thereby ensuring the temperature uniformity of the berry tea and improving the crystallization effect of the berry tea. When the rotation speed of the transmission roller 200 is relatively fast (i.e., when the amount of berry tea clamped between the first conveyor belt 300 and the second conveyor belt 400 is relatively small), the stirring rod 510 completes the breaking of the berry tea at a relatively slow rotation speed, thereby ensuring the temperature uniformity of the berry tea while reducing the risk of damage to the leaves of the berry tea. When the rotation speed of the transmission roller 200 is relatively slow (i.e., when the amount of berry tea clamped between the first conveyor belt 300 and the second conveyor belt 400 is relatively large), the rotation speed of the stirring rod 510 increases to improve the stirring effect, thereby ensuring the temperature uniformity of the berry tea and further ensuring the crystallization effect of the berry tea.

[0044] The first conveyor belt 300 and the second conveyor belt 400 are made of a non-elastic material with good air permeability.

[0045] The solution of this embodiment uses a material with good air permeability to make the first conveyor belt 300 and the second conveyor belt 400, which improves the contact effect between the berry tea and the air in the casing 100, and ensures that the leaves of the berry tea can be maintained in a temperature range suitable for crystallization, thereby improving the crystallization effect and efficiency of the berry tea.

[0046] The first conveyor belt 300 and the second conveyor belt 400 are arranged horizontally relative to each other, and the berry tea held therein is squeezed to form an arched shape with a protrusion in the middle. In the solution of this embodiment, the first conveyor belt 300 and the second conveyor belt 400 are arranged to be made of non-elastic materials, so that when the horizontal belt surfaces relative to the first conveyor belt 300 and the second conveyor belt 400 form an arch, the cavity 500 formed between the first conveyor belt 300 and the second conveyor belt 400 can also form a corresponding constricted shape with small ends and a large middle, thereby reducing the risk of the berry tea falling off from the two ends of the cavity 500.

[0047] In some preferred embodiments, the first conveyor belt 300 and / or the second conveyor belt 400 may be configured to be made of inelastic fabric, such as cotton, linen, or polyester.

[0048] The first conveyor belt 300 is provided with first position-limiting convex strips 310 protruding inwardly at both ends, and the second conveyor belt 400 is provided with second position-limiting convex strips 410 protruding inwardly at both ends. Each transmission roller 200 is provided with position-limiting grooves 210 at both ends. When the first conveyor belt 300 or the second conveyor belt 400 is in contact with the transmission roller 200, the first position-limiting convex strips 310 or the second position-limiting convex strips 410 are inserted into the position-limiting grooves 210.

[0049] The solution of this embodiment, by providing the first limiting ridge 310, the second limiting ridge 410 and the limiting groove 210, enables the first limiting ridge 310 or the second limiting ridge 410 to be inserted into the limiting groove 210 when the first conveyor belt 300 or the second conveyor belt 400 is in contact with the driving roller 200, thereby limiting the displacement of the first conveyor belt 300 or the second conveyor belt 400 in the width direction, thereby improving the structural stability of the first conveyor belt 300 and the second conveyor belt 400 and ensuring the smooth transportation of berry tea.

[0050] like Figure 8 As shown, when the first conveyor belt 300 is sleeved on the transmission roller 200, the first limiting convex strip 310 is embedded in the limiting groove 210, and the belt surface of the first conveyor belt 300 remains straight. Under the pressure of the clamped berry tea, the belt surface of the second conveyor belt 400 outside it forms an arched shape with both ends contracted inward and the middle bulging outward. When the second conveyor belt 400 is sleeved on the transmission roller 200, the second limiting convex strip 410 is embedded in the limiting groove 210, and the belt surface of the second conveyor belt 400 remains straight. Under the pressure of the clamped berry tea, the belt surface of the first conveyor belt 300 outside it forms an arched shape with both ends contracted inward and the middle bulging outward.

[0051] In some embodiments, the limiting convex strip may be made of rubber material to improve its corrosion resistance, wear resistance, and anti-aging performance.

[0052] A first support frame 311 is disposed inside the first position-limiting convex strip 310, and a second support frame 411 is disposed inside the second position-limiting convex strip 410. The first support frame 311 and the second support frame 411 are both made of metal material.

[0053] The solution of this embodiment utilizes the rigidity of the first support frame 311 and the second support frame 411 so that the first conveyor belt 300 or the second conveyor belt 400 can still resist its own weight and maintain a stable arc shape in the cavity 500 without the direct support of the transmission roller 200, thereby ensuring that the space in the cavity 500 is sufficient and stable, ensuring the normal operation of the stirring rod 510, and ensuring the flipping effect of the berry tea.

[0054] In some preferred embodiments, the first supporting skeleton 311 and / or the second supporting skeleton 411 may be configured as steel belts.

[0055] The first conveyor belt 300 is provided with first toothed belts 320 protruding outward at both ends, and the second conveyor belt 400 is provided with second toothed belts 420 protruding outward at both ends. The first toothed belt 320 and the second toothed belt 420 are meshed with each other at the belt surfaces facing each other.

[0056] The solution of this embodiment is to respectively set the first toothed belt 320 and the second toothed belt 420 on the first conveyor belt 300 and the second conveyor belt 400, so that there is a certain gap between the first conveyor belt 300 and the second conveyor belt 400, thereby ensuring the conveying efficiency of the berry tea. The first toothed belt 320 and the second toothed belt 420 are meshed to keep the transmission speed of the first conveyor belt 300 and the second conveyor belt 400 consistent, thereby avoiding the relative movement between the horizontally opposite belt surfaces of the first conveyor belt 300 and the second conveyor belt 400, thereby reducing the risk of damage to the leaves of the berry tea. At the same time, the meshing arrangement of the first toothed belt 320 and the second toothed belt 420 improves the structural stability of the cavity 500.

[0057] In some preferred embodiments, the bandwidth of the first toothed belt 320 and the second toothed belt 420 can be set according to the transportation volume of berry tea to ensure that after the first conveyor belt 300 or the second conveyor belt 400 shrinks and moves inward under the squeeze of berry tea, the first toothed belt 320 or the second toothed belt 420 can still remain in a meshing state, thereby ensuring the synchronous transmission of the first conveyor belt 300 and the second conveyor belt 400, and reducing the risk of berry tea leakage from the sides of the first conveyor belt 300 and the second conveyor belt 400.

[0058] The crystallization device for berry tea may generally further include a plurality of limiting plates 520 .

[0059] The plurality of limiting plates 520 are respectively disposed at two ends of the plurality of cavities 500 to close the plurality of cavities 500 .

[0060] In the solution of this embodiment, the cavity 500 is sealed by providing a limiting plate 520, thereby further reducing the risk of the berry tea sliding off the two ends of the cavity 500.

[0061] A feed port 110 is disposed at the top of the housing 100, and a discharge port 120 is disposed at the bottom of the housing 100. The feed port 110 and the discharge port 120 are opposite to the belt surface of the first conveyor belt 300 or the second conveyor belt 400.

[0062] In the solution of this embodiment, the feed port 110 is set at the top of the housing 100, and the discharge port 120 is set at the bottom of the housing 100, so that the berry tea is moved in the horizontal direction by the first conveyor belt 300 and the second conveyor belt 400, and in the vertical direction, it is moved by its own weight. Not only is the structure reasonable and stable, but also the convenience of feeding and collecting berry tea is improved.

[0063] The size of the feed port 110 can be set according to actual needs. In some embodiments, the size of the feed port 110 can be set larger, and the top of the housing 100 and the portion opposite to the belt surface of the first conveyor belt 300 can all be set as the feed port 110 to improve the efficiency of feeding berry tea.

[0064] In some embodiments, a fence 111 may be provided on the feed port 110 to prevent accidental injury to operators and improve the safety of the crystallization device for berry tea. At the same time, other debris may be prevented from accidentally falling into the feed port 110, thereby ensuring the normal operation of the crystallization device for berry tea and improving its aesthetics.

[0065] In some embodiments, the discharge port 120 may be configured to be smaller to facilitate the collection of the berry tea.

[0066] In some embodiments, a support leg 130 may be further provided at the bottom of the housing 100 for supporting the housing 100 so that the housing 100 is away from the ground, thereby facilitating the collection of berry tea from the discharge port 120 .

[0067] The solution of this embodiment is to set a feed port 110 at the top of the casing 100, set a discharge port 120 at the bottom of the casing 100, and use the first conveyor belt 300 and the second conveyor belt 400 to transport the berry tea and perform crystallization. Its automated process not only improves the crystallization quality of the berry tea, but also improves the production efficiency of the berry tea and reduces labor costs.

[0068] The specific working process of the crystallization device for berry tea provided by the present invention is described in combination with the above embodiments: The temperature control device 600 is started to control the air temperature in the casing 100 to be maintained within a preset temperature range. The berry tea is put into the casing 100 through the feed port 110 and falls on the belt surface of the first conveyor belt 300. The power device is started to drive the transmission roller 200 to rotate, and the first conveyor belt 300 and the second conveyor belt 400 begin to rotate. Driven by the first conveyor belt 300, the berry tea moves and begins to contact the relative second conveyor belt 400. Under the squeezing of the first conveyor belt 300 and the second conveyor belt 400, the berry tea forms a flattened thin layer. Afterwards, the berry tea moves under the clamping of the first conveyor belt 300 and the second conveyor belt 400. Among them, when the berry tea moves to the cavity 500 at the bend, it falls freely under the action of gravity and is broken up under the stirring of the stirring rod 510 to reduce the temperature difference of the berry tea and improve the crystallization effect. The berry tea moves slowly in the housing 100 and gradually completes crystallization. Finally, it moves to the discharge port 120 under the transportation of the first conveyor belt 300 and the second conveyor belt 400 and is discharged from the discharge port 120 .

[0069] Fig.11 is a schematic flow chart of a crystallization method for berry tea according to one embodiment of the present invention.

[0070] like Fig.11 As shown, this embodiment also provides a crystallization method for berry tea, using any of the above-mentioned crystallization devices to crystallize berry tea. The crystallization method for berry tea generally may include: Step S1102 , starting the temperature control device 600 to maintain the air in the housing 100 within a preset temperature range.

[0071] Step S1104 , the berry tea to be crystallized is added through the feed port 110 at the top of the housing 100 .

[0072] Step S1106, start the driving roller 200 to drive the first conveyor belt 300 and the second conveyor belt 400 to rotate, so that the berry tea moves and completes crystallization.

[0073] Step S1108 , taking out the crystallized berry tea through the discharge port 120 at the bottom of the housing 100 .

[0074] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A crystallization device for berry tea, characterized in that: include: chassis; A plurality of transmission rollers are rotatably disposed on the housing; A first conveyor belt and a second conveyor belt are arranged in the housing and sleeved on the plurality of transmission rollers; the belt surfaces of the first conveyor belt and the second conveyor belt are opposite to each other, and are used to clamp and convey the berry tea; the belt surfaces of the first conveyor belt and the second conveyor belt are repeatedly bent in an S shape in the vertical direction; and at each bending point, the distance between the first conveyor belt and the second conveyor belt increases to form a cavity; The temperature control device is arranged at the bottom of the casing and is used to maintain the air in the casing within a preset temperature range.

2. The crystallization device for berry tea according to claim 1, characterized in that: Also includes: A plurality of stirring rods are rotatably arranged on the housing and located in the plurality of cavities; wherein, The plurality of stirring rods are arranged in one-to-one correspondence with the plurality of cavities.

3. The crystallization device for berry tea according to claim 2, characterized in that: The rotation speed of the stirring rod is inversely proportional to the rotation speed of the driving roller.

4. The crystallization device for berry tea according to claim 1, characterized in that: The first conveyor belt and the second conveyor belt are made of a non-elastic material with good air permeability.

5. The crystallization device for berry tea according to claim 1, characterized in that: The two ends of the first conveyor belt are respectively formed with first position-limiting convex strips protruding inwards, and the two ends of the second conveyor belt are respectively formed with second position-limiting convex strips protruding inwards; Both ends of each transmission roller are respectively formed with limiting grooves; When the first conveyor belt or the second conveyor belt is in contact with the driving roller, the first limiting convex strip or the second limiting convex strip is inserted into the limiting groove.

6. The crystallization device for berry tea according to claim 5, characterized in that: A first supporting frame is disposed inside the first position-limiting convex strip, and a second supporting frame is disposed inside the second position-limiting convex strip; The first supporting frame and the second supporting frame are both made of metal material.

7. The crystallization device for berry tea according to claim 1, characterized in that: The first conveyor belt is further provided with first toothed belts protruding outward at both ends, and the second conveyor belt is further provided with second toothed belts protruding outward at both ends; The first toothed belt and the second toothed belt are meshed at the belt surfaces of the first conveyor belt and the second conveyor belt that are opposite to each other.

8. The crystallization device for berry tea according to claim 1, characterized in that: Also includes: A plurality of limiting plates are respectively arranged at two ends of the plurality of cavities to close the plurality of cavities.

9. The crystallization device for berry tea according to claim 1, characterized in that: The top of the housing is provided with a feed inlet, and the bottom of the housing is provided with a discharge outlet; The feed port and the discharge port are opposite to the belt surface of the first conveyor belt or the second conveyor belt.

10. A crystallization method for berry tea, characterized in that: The crystallization device according to any one of claims 1 to 9 is used to crystallize berry tea, comprising: Start the temperature control device to maintain the air in the casing within a preset temperature range; Putting the berry tea to be crystallized into the machine through the feed port on the top of the casing; Starting the transmission roller to drive the first conveyor belt and the second conveyor belt to rotate, so that the berry tea moves and completes crystallization; The crystallized berry tea is taken out through the discharge port at the bottom of the casing.

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