Automatic dispersion device for tea leaf drying

Abstract

The present application relates to the technical field of tea production and processing, and particularly relates to an automatic dispersion device for tea drying, which comprises a deagglomeration device for deagglomerating tea and outputting the tea downward, and a reciprocating tea sowing driving conveying device below the deagglomeration device. The reciprocating tea sowing driving conveying device comprises a sowing and conveying bearing surface for receiving tea and capable of reciprocating leftward and rightward to sow the tea and simultaneously conveying the sowed tea forward. The sowing speed of the sowing and conveying bearing surface for sowing tea leftward and rightward is greater than the conveying speed for conveying tea forward, and the tea dispersion effect is good and the efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of tea production and processing technology, and in particular to an automatic dispersing device for drying tea leaves. Background Technology

[0002] In the tea-making process, rolling is usually used. After rolling, the tea leaves need to be broken up as soon as possible. Breaking up refers to separating the tea leaves as soon as possible after the fresh leaves are rolled, and quickly lowering the temperature to avoid the development of a musty taste and insufficient drying, which can lead to a musty and sour taste. After breaking up the clumps, subsequent drying and other processes will be carried out. There are many types of machinery and equipment available for breaking up tea clumps.

[0003] For example, Chinese invention patent application number 201410085370.X discloses a tea leaf de-clumping machine, including a transmission system, a support frame, a column cage, and a shell; the column cage consists of two discs, a central shaft, and 4 to 8 cylindrical columns mounted on the discs; the shell is divided into an upper section and a lower section, which are respectively fixed to the support frame by two shell shafts. By pulling out the shell shafts, the shell can be removed; on one of the discs, each column end has a spring cylinder with a spring installed at a corresponding position. By pulling the column towards the spring cylinder, the column can be removed from the disc; another example is application number 202011324070. Chinese invention patent No. 4 discloses a tea leaf breaking machine that can separate tea leaves, including a mounting tank. A drive motor is fixedly installed on the top wall of the mounting tank. A rotating rod is fixedly installed at the output end of the drive motor, and the bottom end of the rotating rod penetrates the top wall of the mounting tank and extends into the mounting tank. Multiple stirring blades are evenly fixedly installed on the outer side wall of the rotating rod. When tea leaves are placed in the mounting tank, the rotating stirring blades can break up the tea leaves. The broken tea leaves will fall from the bottom of the mounting tank to the top of the metal screen. The broken tea leaves will fall through the metal screen into the receiving box at the bottom. Tea leaves that are not completely broken up will slide down the inclined top wall of the metal screen into the recycling box at the bottom.

[0004] While existing tea-breaking machines can disperse tea leaves after kneading, many leaves still clump together. Therefore, further processing is usually required. For example, more traditional tea-breaking machines incorporate internal or external vibration and screening mechanisms to break up the tea leaves. For instance, Chinese utility model patent application number 202020058117.6 discloses a tea-breaking machine capable of separating tea leaves, including a housing, a tea-breaking mechanism, a first wire mesh, a second wire mesh, a third wire mesh, and a vibration motor. The tea-breaking mechanism, the first wire mesh, the second wire mesh, and the third wire mesh are all located inside the housing. The housing has a feed hopper at the top and a lower feed hopper at the bottom. Two vibration motors... The machine is symmetrically installed on both sides of the outside of the feeding hopper, and the de-blocking mechanism is located below the feeding hopper. The de-blocking mechanism includes a first de-blocking roller, a second de-blocking roller, a first de-blocking column, a second de-blocking column, a third de-blocking column, a fourth de-blocking column, and a rotating motor. The first, second, and third wire meshes are arranged sequentially below the de-blocking mechanism from top to bottom. In this structure, the entire de-blocking machine vibrates, which is a kind of damage to the equipment itself. Vibrating the clumps of tea leaves stacked in the container will cause a large amount and degree of damage to the tea leaves, which will have a significant impact on the quality of the tea leaves. Moreover, this vibration screening is multi-stage. The tea leaves after being stirred and de-blocked on the upper side need to go through multiple vibration filters before they come down, which has certain inefficiencies.

[0005] Another method involves manually spreading the tea leaves that have clumped together after being broken up. This is done by spreading them onto conveyor belts, drying platforms, or other supports. While this method is less damaging to the tea leaves, it is labor-intensive and inefficient. The process involves manually grabbing the tea leaves, gently rubbing them with your fingers, and then placing them down, similar to sowing seeds. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic dispersing device for tea drying that has good tea dispersion effect and high efficiency.

[0007] The above-mentioned objective of this invention is achieved through the following technical solution: an automatic dispersing device for tea drying, which is used before the tea drying process, that is, to effectively disperse the kneaded tea leaves before proceeding with subsequent drying operations. Existing de-clumping devices are also used to disperse tea leaves, but this application, through a novel design, achieves better tea leaf dispersion and is more conducive to obtaining high-quality tea leaves after subsequent drying. Specifically:

[0008] The device includes a tea-breaking device for breaking up tea leaves and outputting them downwards, and a reciprocating tea-spreading drive conveyor below the tea-breaking device. The reciprocating tea-spreading drive conveyor includes a spreading and conveying bearing surface for receiving tea leaves and moving back and forth to spread the tea leaves while simultaneously conveying the spread tea leaves forward. The spreading speed of the spreading and conveying bearing surface for spreading tea leaves to the left and right is greater than the conveying speed for conveying tea leaves forward. The spreading and conveying bearing surface is fixed with an array of flexible hemispherical protrusions for buffering falling tea leaves and preventing them from moving and stacking to the left and right. The flexible hemispherical protrusions have airflow channels from one side of the front of the spreading and conveying bearing surface to the back side. The back side of the spreading and conveying bearing surface is provided with an air extraction pipe and an air blowing pipe.

[0009] As a preferred embodiment of the present invention, the reciprocating tea leaf spreading and conveying device moves in a swinging motion, and the spreading speed is the linear velocity of the left and right swing of the tea leaf portion currently received by the spreading and conveying bearing surface. A guide rail is installed above the spreading and conveying bearing surface to guide the left and right swing of the reciprocating tea leaf spreading and conveying device and to spread the tea leaf from the de-clumping device downwards onto the spreading and conveying bearing surface. A swinging mechanism is installed below the spreading and conveying bearing surface to allow the spreading and conveying bearing surface to swing left and right.

[0010] As a preferred embodiment of the present invention, the guide spreading guide rail is provided with a tea leaf guiding spreading groove that runs vertically through the guide rail and allows the lower output port of the unblocking device to be inserted so that the guide spreading guide rail can guide the tea leaf to circumferentially around the lower output port of the unblocking device. The tea leaf guiding spreading groove is arc-shaped.

[0011] As a preferred embodiment of the present invention, the swing mechanism includes a drive motor, a gear set mounted on the motor shaft of the drive motor, and a drive gear meshing on the gear set for swinging the spreading and conveying bearing surface left and right.

[0012] As a preferred embodiment of the present invention, the tea de-clumping device includes a tea de-clumping machine, which includes a de-clumping mechanism and a collection chamber for collecting the tea leaves after they have been de-clumped by the de-clumping mechanism. The outer periphery of the output port portion at the lower end of the collection chamber is provided with guide wheels that cooperate with the guide spreading guide rail for guidance.

[0013] As a preferred embodiment of the present invention, a fixed outer protective shell is provided at intervals around the periphery of the collecting chamber, and a shock-absorbing spring is connected between the collecting chamber and the fixed outer protective shell. The guide wheel is connected to the outer surface of the lower part of the fixed outer protective shell.

[0014] As a preferred embodiment of the present invention, the spreading and conveying bearing surface is formed by the surface of a conveyor belt that runs back and forth and is in a horizontal state, or the spreading and conveying bearing surface is formed by the surface of a smooth metal plate that is inclined forward and downward.

[0015] As a preferred embodiment of the present invention, the reciprocating tea leaf spreading and driving conveying device moves left and right in a left-right translational manner, and the spreading speed is the linear motion speed of the left-right translation of the tea leaf portion currently received by the spreading and conveying bearing surface. The reciprocating tea leaf spreading and driving conveying device further includes a translation mechanism installed below the spreading and conveying bearing surface for the left-right translation of the spreading and conveying bearing surface, and a guide spreading guide rail located above the spreading and conveying bearing surface for the reciprocating tea leaf spreading and driving conveying device to swing left and right and guide the tea leaves from the de-clumping device downwards onto the spreading and conveying bearing surface. The guide spreading guide rail has a tea leaf guiding spreading groove that runs vertically through and allows the lower output port of the de-clumping device to be inserted so that the guide spreading guide rail guides the tea leaves along the lower output port of the de-clumping device. The tea leaf guiding spreading groove is linear.

[0016] Preferably, the reciprocating tea leaf spreading and conveying device has two units spaced apart, connected as one unit. A front guide branch spreading head extending forward and downward and a rear guide branch spreading head extending backward and downward are fixed to the lower side of the guide spreading guide rail. The front guide branch spreading head forms a front guide ramp for tea leaf circulation and guidance to the spreading and conveying bearing surface of the forward reciprocating tea leaf spreading and conveying device. The rear guide branch spreading head forms a reciprocating ramp for tea leaf circulation and guidance to the rear reciprocating... The tea-spreading drive conveyor has a rear guide ramp at the spreading and conveying bearing surface. The tea-spreading guide slots are connected to the front and rear guide ramps respectively, forming a herringbone structure. The top junctions of the front and rear guide branch spreading heads are integrally connected to form a top front-rear dividing line connecting part that divides the tea falling from the tea-spreading guide slots into two parts. The front guide branch spreading head has water permeable holes at the corresponding positions of the front and rear guide branch spreading heads.

[0017] As a preferred embodiment of the present invention, a buffer dispersion head is fixed at the top front and rear dividing line connection portion, extending along the top front and rear dividing line connection portion and having an arc-shaped arched cross section, for contacting the tea leaves and dispersing them to the front and rear sides. The buffer dispersion head is provided with a vertically penetrating vent hole, and the lower side of the buffer dispersion head is connected to an air blowing pipe.

[0018] The beneficial effects of this invention are: the dispersion and transportation of tea leaves are integrated, resulting in higher efficiency;

[0019] After the tea leaves are broken up, they are not subjected to vibration screening. Instead, they are automatically spread through a structure that integrates the bearing, movement, and conveying of the carrying surface. The tea leaves are evenly spread on the carrying surface. During the spreading process, any clumps of tea leaves will be broken up three times, greatly reducing the degree of tea leaf stacking. Residual moisture during the conveying process is also further dried and removed, which improves the quality of the tea leaves.

[0020] It causes less damage to the equipment and tea leaves, the equipment operates stably, and after the tea leaves are dispersed, they can enter the later processes such as drying, resulting in higher quality tea leaves. Attached Figure Description

[0021] Figure 1 This is a rear-view perspective three-dimensional structural diagram of one type of automatic dispersing device for drying tea leaves in Example 1.

[0022] Figure 2 yes Figure 1 A three-dimensional structural diagram from the front right center perspective;

[0023] Figure 3 yes Figure 2 Enlarged view of point I in the middle;

[0024] Figure 4 yes Figure 1 A schematic diagram of the improved three-dimensional structure of the disassembly device;

[0025] Figure 5 yes Figure 1 A circuit diagram of an automatic dispersing device used for tea drying, used for spreading tea leaves.

[0026] Figure 6 yes Figure 1 A schematic diagram of the three-dimensional structure after the conveyor belt structure is transformed into a smooth metal plate structure.

[0027] Figure 7 This is a three-dimensional structural schematic diagram of one type of automatic dispersing device for drying tea leaves in Example 2;

[0028] Figure 8 yes Figure 7 A three-dimensional structural diagram showing the removal of the disassembly device from the central structure, which also has water-permeable holes;

[0029] Figure 9 yes Figure 8 Enlarged view of section II. Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0032] Example 1, such as Figure 1-6As shown, the automatic dispersing device for tea drying includes a de-clumping device for breaking up tea clumps and outputting the tea downwards, and a reciprocating tea-spreading driving conveyor below the de-clumping device. The reciprocating tea-spreading driving conveyor includes a spreading and conveying bearing surface m for receiving tea leaves and moving back and forth between left and right to spread the tea leaves while simultaneously conveying the spread tea leaves forward. This is the basic architecture of this embodiment. The de-clumping device adopts a traditional stirring type without a vibration mechanism. The position of the de-clumping device is fixed. After the tea leaves fall, the reciprocating tea-spreading driving conveyor receives the falling tea leaves through the left-right moving spreading and conveying bearing surface m, further dispersing the tea leaves and spreading them in the left-right direction. Simultaneously, the spreading and conveying bearing surface m can also convey the tea leaves forward. Tea leaves can also be spread out in both front and back directions, thus achieving automatic spreading by spreading tea leaves in multiple directions. This mainly relies on the spreading and conveying support surface m. To achieve better spreading, the spreading and conveying support surface m needs to ensure that the spreading speed of the tea leaves spreading left and right is greater than the conveying speed of the tea leaves conveying forward. Under this condition, the range of tea leaves spread in the left and right directions can be larger in a short time, and the spacing between tea leaves in front and back will be smaller. This basically ensures that the tea leaves can be spread more fully on the spreading and conveying support surface m, resulting in higher space utilization. The spreading speed is preferably more than 5 times the conveying speed and controlled within 20 times. This depends on the left and right width of the spreading and conveying support surface m, the movement method, and the position of the tea leaves falling after breaking up the clumps, which will be described in detail later. Furthermore, to enhance the effect, an array of flexible hemispherical protrusions t can be fixed on the spreading and conveying support surface m to buffer the falling tea leaves and prevent them from shifting and piling up. These flexible hemispherical protrusions t can be made of materials such as rubber or silicone. If any clumps of tea leaves fall onto these protrusions after being broken up, they will disperse and spread more effectively, further reducing damage to the tea leaves. Of course, the tea leaves themselves also have a certain impact force when they touch the spreading and conveying support surface m, which helps to disperse them. Additionally, the surface of the flexible hemispherical protrusions t should be as smooth as possible so that the tea leaves can easily detach from the spreading and conveying support surface m when transported to the designated position. While gel can be used, it is quite sticky, requiring a smooth plastic film to be adhered to its surface. The advantage of this is that the cooler gel provides better cooling for the tea leaves, better preserving the internal components of the fresh tea leaves and resulting in higher quality. These flexible hemispherical protrusions t are distributed in a rectangular array at intervals and can be embedded in the spreading and conveying support surface m or bonded to it using existing fixing methods.Furthermore, the flexible hemispherical protrusion t has an airflow channel t1 that connects the front side of the spreading and conveying bearing surface m to the back side. The spreading and conveying bearing surface m is the side that directly carries and conveys the tea leaves, and the back side is the side facing away from the bearing surface. The spreading and conveying bearing surface m can be understood as a flat solid structure with a certain thickness and a front and back side. It can also be seen that the airflow channel t1 penetrates the flexible hemispherical protrusion t and connects the front and back sides of the spreading and conveying bearing surface m. Thus, after the tea leaves are spread on the front side, moisture may be discharged from the back side. Preferably, the back side of the spreading and conveying bearing surface m is provided with an extraction pipe c1 and an air blowing pipe c2, with the extraction and blowing pipes interacting. If the process is incorrect, for example, when spreading and conveying tea leaves on the conveying surface m, first perform air extraction. This will create negative pressure on the back side, causing moisture and air from the front side to travel to the back side. Of course, this will also create some suction to hold onto some tea leaves. Therefore, the extraction pressure should not be too high to avoid damaging the tea leaves. Just enough to keep the tea leaves barely touching the front side outlet of the airflow channel t1. Then stop extracting and start blowing in some dry air. This will help the moisture diffuse to the back side. Do not blow air directly at the front to prevent the tea leaves from moving around. You can blow horizontally, just enough to slightly shake the tea leaves to ensure even distribution. The shaking amplitude should be controlled within 5 mm to effectively disperse any clumps of tea leaves. In addition, the air extraction pipe c1 and the air blowing pipe c2 should be set on the back of the part of the spreading and conveying bearing surface m where the initial spreading and conveying takes place. The downstream output position of the spreading and conveying bearing surface m does not require the air extraction and air blowing structure, because when the tea leaves are conveyed to the downstream outlet position, they need to fall smoothly for collection. Therefore, the tea leaves should be kept in a natural spread state to ensure that the spread tea leaves are output naturally, so that the collection can be carried out more stably.

[0033] Preferably, the spreading and conveying bearing surface m is formed by the surface of a reciprocating conveyor belt s and is horizontal. The conveyor belt s can be made of existing steel or rubber and is an O-shaped conveyor belt that reciprocates back and forth. It is tensioned by two rollers g, one of which is driven by a motor or other power source as the drive roller. This is a conventional conveyor belt transportation structure. The difference is that this conveyor belt structure is used for spreading tea leaves. This conveyor belt s consists of two parts: the upper part transports forward, and the lower part rotates back and forth. Of course, the role of each part changes during operation. Therefore, the spreading and conveying bearing surface m can be understood as the upper part of the conveyor belt s during operation. This spreading and conveying bearing surface m is an active conveying structure. It can control the speed of the rollers and the speed of the conveyor belt s by controlling the motor. This speed is the conveying speed for the tea leaves to move forward. The two rollers g are installed and connected to the conventional roller brackets g1 on the left and right sides. The roller brackets g1 are fixed on a movable platform g2. This platform g2 can move in the left and right directions. The movement of the platform g2 can drive the spreading and conveying bearing surface m to move left and right, while the disintegrating device above is fixed in position. To prevent tea leaves from spilling out, some blocking structures are needed on both sides of the conveyor belt s. For example, some baffle structures can be set near the conveyor belt s on the roller support g1. Alternatively, the left and right edges of the conveyor belt s can be integrally connected to form baffle sections for blocking on both sides. The aforementioned suction pipe c1 and blowing pipe c2 can be set to extend into the area surrounded by the conveyor belt s, that is, in the area between the upper and lower halves of the conveyor belt s. The suction pipe c1 and blowing pipe c2 can be flexible long pipe structures and hung on the roller support g1. This pipe structure will move along with the conveyor belt. Alternatively, rigid pipes can be used and fixed to the frame around the platform g2 and extend into the area between the upper and lower halves of the conveyor belt s. In this case, the pipes do not move during operation, but since there is no interference between the structures in the extended area, it is also feasible.

[0034] The operation of this automatic dispersing device for tea drying involves the upper de-clumping device breaking up the kneaded tea leaves, which then fall continuously from the de-clumping device. The lower platform g2 drives the conveyor belt s to move left and right, causing the spreading and conveying bearing surface m on the conveyor belt s to also move left and right. This forms an automatic spreading structure, where the spreading and conveying bearing surface m continuously receives the de-clumped tea leaves falling from the de-clumping device during its left and right movement, achieving a continuous spreading effect in the left and right directions. Moreover, since the conveyor belt s rotates back and forth, the spreading and conveying bearing surface m moves forward. This allows the portion of the spreading and conveying bearing surface m that receives the tea leaves to move forward, enabling the rearward portion of the spreading and conveying bearing surface m to catch up and continue the spreading operation. This maximizes the spreading and conveying of tea leaves onto the spreading and conveying bearing surface m, improving efficiency and conveying the tea leaves. During the conveying process, the tea leaves are dried. The tea leaves are conveyed from back to front to the downstream position in front of the conveyor belt s. Due to the back-and-forth movement, the tea leaves will fall off. Therefore, a collection container for collecting the tea leaves needs to be set up in the downstream area of ​​the conveyor belt s, and the tea leaves can be transferred to other places for the next process, which is usually the drying process. After the tea leaves dispersed by this application and processed by drying and other processes, the quality will be better. The tea leaves fall from top to bottom onto the spreading and conveying bearing surface m, and the clumps of tea leaves will be further dispersed. During the conveying process, the moisture in the tea leaves is removed by natural and added airflow structures, and the tea leaves are also cooled. This allows the tea leaves to be fully broken up and conveyed, which can significantly improve the production efficiency and tea quality.

[0035] In the aforementioned preferred method, the sowing speed of the spreading and conveying surface m for lateral sowing of tea leaves is greater than the forward conveying speed of the tea leaves. This ensures the density of the sowing. If the conveying speed is too high, the spreading and conveying surface m will carry very little tea leaves in the lateral sections due to its rapid movement, resulting in a linear, distributed pattern of sown tea leaves. A faster lateral sowing speed ensures that the spreading and conveying surface m is fully filled with tea leaves in both the lateral and forward sections, resulting in a full and plump distribution. Of course, the lateral speed... The spreading speed cannot be too fast, because if it is too fast, the tea leaves in the preceding and following sections will pile up. This is because the tea leaves falling from the unblocking device are in large quantities at the same time, not one piece at a time; they fall in groups. Therefore, they occupy space in front and behind. If the spreading speed is too fast and the travel speed is slow, the tea leaves in front and behind will pile up, which is not conducive to the drying of the tea leaves and affects the overall spreading effect. Therefore, the principle is to control the falling tea leaf groups to maintain continuity in all directions without excessive piling. In addition, the falling speed of the tea leaves should also be less than the spreading speed; otherwise, the thickness of the tea leaves spread on the spreading and conveying surface m in the same time period will be too thick, and the tea leaves will pile up between sides. The average thickness of the tea leaf groups on the spreading and conveying surface m should be controlled within 5 mm to ensure good dispersion of the tea leaves and reduce piling. This is an active conveying structure.

[0036] Another implementation of the aforementioned spreading and conveying bearing surface m involves the formation of a smooth metal plate j inclined forward and downward. The smooth metal plate j can be a stainless steel plate with a smooth upper surface, i.e., an inclined smooth surface. This method is not as effective as the conveyor belt structure described above, but it is still feasible. In this method, the spreading and conveying bearing surface m is a non-active tea-carrying structure. It utilizes the characteristics of the inclined surface to allow the tea leaves to slide downwards for conveying. In this method, the smooth metal plate j can also be connected to the platform g2, allowing the platform g2 to move left and right to drive the smooth metal plate j for spreading. In this structure, the downward and forward inclination angle of the smooth metal plate j should not be too large, preferably controlled within 10 degrees. To allow the tea leaves to move slowly, the conveying speed cannot be adjusted, which has certain limitations. For example, if the material is fed relatively quickly, it may cause stacking. In addition, a small inclination and slow downward sliding speed may cause blockage. Therefore, it needs to be used with a relatively small amplitude and frequency. The effect is still acceptable. Compared with the traditional tea-dispersing technology, this implementation method is still quite effective, but it is still the active conveying structure described above, which has more advantages.

[0037] Preferably, the reciprocating tea-spreading drive conveyor moves in a swinging motion, with the spreading speed being the linear velocity of the left-right swing of the tea-spreading conveyor surface m. In this structural design, the reciprocating tea-spreading drive conveyor rotates back and forth in an arc, thus forming a horizontal swinging motion. It needs to swing around a swing center, which will be described in detail later. Since it is an arc-shaped motion, the unblocking device also follows the same arc shape relative to the entire reciprocating tea-spreading drive conveyor. Specifically, it is relative to the stationary spreading conveyor surface m or relative to the reciprocating tea-spreading... In the drive conveyor device, the roller support g1, which does not move forward, follows the same arc-shaped path. When the platform g2 swings and the spreading conveyor bearing surface m does not move, the tea leaves falling from the deblocking device form a standard arc-shaped spreading pattern on the spreading conveyor bearing surface m. However, they all swing with the same radius, causing the tea leaves to continuously overlap and stack up. Therefore, this problem can be solved when the spreading conveyor bearing surface m is running. It can spread tea leaves not only to the left and right but also to the front and back without stacking them up. When the left and right spreading speed is relatively fast, the tea leaf spreading pattern can be basically similar to the standard arc-shaped spreading pattern without causing stacking. The aforementioned spreading speed is the linear velocity of the left-right swing of the tea leaf portion currently received by the spreading and conveying bearing surface m. In reality, this is the general swing speed component of the tea leaf portion currently received by the spreading and conveying bearing surface m. This component is the standard arc running speed mentioned above. This speed is also the linear velocity of the platform g2 directly facing the receiving part of the spreading and conveying bearing surface m, that is, the linear velocity of the platform g2 directly facing the position of the tea leaf falling from the unblocking device relative to the swing center. Therefore, there needs to be a certain distance in the horizontal direction between the position of the tea leaf falling from the unblocking device and the swing center, and this distance is used as the swing radius to form the aforementioned linear velocity. In this structure, we choose an implementation method where, for example, the width of the spreading and conveying bearing surface m is about 1 meter, and the width of the corresponding conveyor belt s is also about 1 meter. If the linear velocity of the platform g2 at the position where the tea leaves fall directly opposite the unblocking device is controlled at 1 meter / second (i.e., the spreading speed is 1 meter / second), then the falling speed of the tea leaves is controlled at about 0.2 meters / second. The traveling speed of the spreading and conveying bearing surface m, i.e., the conveying speed of the tea leaves moving forward, is controlled at about 0.1 meters / second. This speed design ratio is a preferred implementation case, which can maintain a good spreading effect. In addition, the swing radius can be controlled between 0.5 and 2 meters, and the corresponding linear velocity can be controlled by adjusting the swing angular velocity.

[0038] Further preferably, a guide rail 11 is installed above the spreading and conveying bearing surface m to guide the reciprocating tea spreading drive conveyor device to swing left and right, and to spread tea leaves from the de-clumping device onto the spreading and conveying bearing surface m. This not only makes the left and right swing of the reciprocating tea spreading drive conveyor device more stable, but also utilizes the part of the tea leaves falling from the de-clumping device, guiding and feeding simultaneously. In addition, a swing mechanism is installed below the spreading and conveying bearing surface m to allow the spreading and conveying bearing surface m to swing left and right. The swing requires a corresponding power structure to realize it. The specific structure is as follows:

[0039] The guide rail 11 has a tea-guiding dispensing groove 111 that runs vertically through the unblocking device, allowing the lower output port of the unblocking device to be inserted. This groove guides the tea-guiding dispensing device around the lower output port. The tea-guiding dispensing groove 111 is arc-shaped. In this structure, the lower output port of the unblocking device, used for dispensing tea, also acts as a positioning post when extending downwards into the tea-guiding dispensing groove 111. This allows the reciprocating tea-dispensing drive conveyor to swing left and right, improving stability and overall integrity, and ensuring more precise and uniform tea dispensing. The guide rail 11 needs to be fixed in place, typically mounted on the left and right roller supports g1 above the conveyor belt s. The arc shape of the tea-guiding dispensing groove 111 matches the arc path of the unblocking device's dispensing route.

[0040] The swing mechanism includes a drive motor 51, a gear set 52 mounted on the motor shaft of the drive motor 51, and a drive gear 53 meshing on the gear set 52 to allow the spreading and conveying bearing surface m to swing left and right. The drive motor 51 is a bidirectional motor that can rotate in both directions. The gear set 52 can be an existing gearbox structure or a large-size gear, mainly to facilitate the operation of heavier structures. Of course, it can also be a structure with positive and negative swing, such as an existing unidirectional motor with a cam and connecting rod structure. This embodiment still recommends the above-mentioned bidirectional motor structure. The drive gear 53 can be a small-sized gear. The drive motor 51 is mounted and fixed on the lower frame or other basic platform. The motor shaft extends vertically, while the drive gear 53 is horizontal. The drive gear 53 is inserted into and mounted with a central swing shaft 530, which is the swing center. The upper end of the central swing shaft 530 is inserted into the lower part of the platform g2. The central swing shaft 530 can also be mounted on the lower frame. The drive gear 53 is located below the platform g2 and fixed to the platform g2. The two can be connected and fixed by bolts or the like. The drive gear 53 meshes with the gear set 52. Specifically, the drive gear 53 meshes with a larger-sized gear or with the output gear of the gearbox. This is a traditional transmission method. When used in the tea equipment of this example, it can drive the platform and conveyor belt s to swing to achieve the function of automatic tea spreading. This not only makes the equipment stable but also greatly helps to improve the quality of tea. In addition, during implementation, it is best to install a radial bearing or a rotary bearing below the drive gear 53. The drive gear 53 can be fixed to the upper part of the inner ring of these bearings. These bearings can also be installed on the frame, which makes the operation smoother and less labor-intensive, and ensures the stability of operation. It is also advisable that the central swing shaft 530 is inserted into the inner ring of the bearing. The aforementioned drive motor 51 can be controlled by existing automatic control systems to perform forward and reverse rotation. It can be controlled by directly controlling the rotation stroke of the motor itself or by setting some sensors in the guide rail 11 for feedback control. These are all easy to implement and will not be elaborated here. The conveyor belt, air blowing equipment, and stirring structure of the deblocking device involved in this application can all be uniformly controlled and managed by automatic control equipment, reducing manual operation costs.

[0041] Preferably, the tea clump-breaking device includes a tea clump-breaking machine 21. The tea clump-breaking machine 21 can adopt a traditional roller-stirring structure, that is, the tea clump-breaking machine 21 includes a clump-breaking mechanism 211 and a collection chamber 212 for collecting the tea clumps broken up by the clump-breaking mechanism 211. The clump-breaking mechanism 211 can be a stirring and clump-breaking structure with stirring blades, or it can be a hopper-type collection chamber 212. The difference lies in that the lower output port portion 2121 of the collection chamber 212 is equipped with guide wheels 213 that cooperate with the guide spreading guide rail 11 for guidance. Here, the guide wheels 213 can be directly installed and connected to the outer side of the lower output port portion 2121 of the collection chamber 212, and the guide wheels 213 abut against the tea guiding spreading groove 111 for guidance. Here, the collection chamber 212 is in a fixed position and requires a corresponding installation structure. The lower output port portion of the aforementioned clump-breaking device is the output port portion of the collection chamber 212, i.e., the structure of the guide wheels. Based on this, another guiding method is proposed: the outer periphery of the collecting chamber 212 is provided with fixed outer protective shells 3 at intervals. A disintegrating shock-absorbing spring 31 connects the collecting chamber 212 and the fixed outer protective shell 3. The guide wheel 213 is connected to the outer surface of the lower part of the fixed outer protective shell 3. The shape of the fixed outer protective shell 3 can be similar to that of the collecting chamber 212, but its size must be larger. The collecting chamber 212 and the fixed outer protective shell 3 are supported and connected by a large disintegrating shock-absorbing spring 31, which can effectively reduce vibration. In this structure, the guide wheel 213 is connected to the outer surface of the lower part of the fixed outer protective shell 3, rather than to the collecting chamber 212. The guide wheel 213 can be installed on the fixed outer protective shell 3 via an axle. The outer side of the fixed outer protective shell 3 is fixedly connected to some mounting columns to maintain positional stability. The columns can be lifting columns for easy height adjustment.

[0042] The above structural design makes the sowing operation more stable, the tea leaf dispersion effect better, and the efficiency higher. In this structure, after the tea leaves break up, they enter the tea leaf guiding sowing slot 111 through the output port 2121 and fall down, which significantly improves the guiding effect of sowing and reduces damage to the equipment and tea leaves.

[0043] Example 2, as Figure 7-9 As shown, this embodiment is an improvement on embodiment 1, specifically, the left-right movement of the reciprocating tea leaf spreading and conveying device is different. In this embodiment, the reciprocating movement of the reciprocating tea leaf spreading and conveying device is a left-right translational movement. With this structure, the entire reciprocating tea leaf spreading and conveying device performs translational spreading, which is a linear translation rather than an arc-shaped one, thus eliminating the need for a center of oscillation. Specifically:

[0044] The spreading speed is the linear motion speed of the tea leaves currently received by the spreading and conveying bearing surface m. The reciprocating tea spreading drive conveying device also includes a translation mechanism installed below the spreading and conveying bearing surface m for left and right translation of the spreading and conveying bearing surface m, and a guide spreading guide rail 11 located above the spreading and conveying bearing surface m for left and right swinging guidance of the reciprocating tea spreading drive conveying device and for spreading tea leaves from the de-clumping device downwards onto the spreading and conveying bearing surface m. The guide spreading guide rail 11 has a tea leaf guiding spreading groove 111 that runs vertically through the un-clumping device and allows the lower output port of the un-clumping device to be inserted, so that the guide spreading guide rail 11 guides the tea leaves along the lower output port of the un-clumping device. The tea leaf guiding spreading groove 111 is straight. Similarly, a tea leaf guiding spreading groove 111 is needed, but here it is straight, not curved. Therefore, in this structure, a swing center is not required. Therefore, the translation mechanism is also different, but it can borrow some elements from the swing mechanism. For example, the translation mechanism includes a drive motor 51, a gear set 52 mounted on the motor shaft of the drive motor 51, and a rack 54 meshing on the gear set 52. The rack 54 extends left and right and is fixed to the underside of the platform, thus eliminating the drive gear and related structures. The underside of the rack 54 can be connected to some existing slide rails or linear bearings for left and right sliding and support. These sliding structures can be installed on the frame to facilitate smooth left and right linear movement. Some support beams can also be installed under the platform, and the support beams can also be connected to the aforementioned sliding structures for smoother operation. The linear motion speed of left and right translation is also the spreading speed. The ratio of the spreading speed, the tea falling speed, and the conveyor belt travel speed is generally controlled at 10:2:1 or close to this ratio. In addition, the actual tea falling speed is not uniform. Generally, the average falling speed of the tea near the conveyor belt is taken as the tea falling speed.

[0045] Preferably, the reciprocating tea-spreading drive conveyor has two units spaced apart, allowing tea to be spread from both sides, resulting in higher efficiency. The two units are connected as one unit, sharing a single platform for simultaneous spreading and driven by a single moving mechanism. In this structure, the lower side of the guiding spreading guide rail 11 preferably has a forward-downward extending front guide branch spreading head 1101 and a rearward-downward extending rear guide branch spreading head 1102. The guiding spreading guide rail 11 guides and separates the tea leaves into two parts, guiding them forward and backward. The front guide branch spreading head 1101 forms a front guide ramp 11011 for tea flow and guidance to the spreading and conveying bearing surface m of the forward reciprocating tea-spreading drive conveyor. The rear guide branch spreading head 1102... A rear guide ramp 11021 is formed at the spreading and conveying bearing surface m of the reciprocating tea spreading drive conveyor device, allowing tea leaves to circulate and be guided to the rear. These two ramps guide the tea leaves at the front and rear sides. Both ramps are downwardly inclined to allow the tea leaves to descend. The tea leaf guiding and spreading slots 111 are connected to the front guide ramp 11011 and the rear guide ramp 11021 respectively, forming a herringbone structure, similar to a T-junction. Furthermore, the front guide branch spreading head... The top junction of 1101 and the rear guide branch dispensing head 1102 is integrally connected to form a top front-to-back dividing line connection part 11111, which divides the tea falling from the tea guide dispensing slot 111 into two parts. The top front-to-back dividing line connection part 11111 is located near the middle of the front and back of the tea guide dispensing slot 111 and extends in a further direction, so that the pile of tea entering the tea guide dispensing slot 111 separates into front and back sides when it hits the top front-to-back dividing line connection part 11111. The front guide branch dispensing head 1101 is in front of... The guide ramp 11011 has permeable holes 1000 on the corresponding part. The front guide ramp 11011 is formed on the front of the front guide branch dispensing head 1101, on the part that carries the tea leaves, that is, on the upper part. The permeable holes 1000 on the front and back of the front guide branch dispensing head 1101 located on the front guide ramp 11011 can dissipate some moisture and filter out some small loose particles and impurities. The surface of the front guide ramp 11011 needs to be very smooth to make the tea leaves guide more smoothly. Similarly, the rear guide branch dispensing head 1102 also has permeable holes 1000 on the corresponding part of the rear guide ramp 11021.

[0046] Furthermore, a buffer dispersing head 11112 is fixed at the top front-rear dividing line connection 11111, extending along the top front-rear dividing line connection 11111 and having an arc-shaped cross-section. This head contacts the tea leaves and disperses them to the front and rear sides. The buffer dispersing head 11112 has vertically penetrating vent holes. The lower side of the buffer dispersing head 11112 is connected to an air outlet pipe, which can be made of plastic or rubber. The vent holes penetrate the top front-rear dividing line connection 11111 and open to the external space below. The air outlet pipe 4 blows air into the vent holes in this external space, mainly to prevent some tea leaves from sticking to the buffer dispersing head 11112. However, the airflow should not be too strong, just enough to make the tea leaves shake, ensuring the smooth flow of the tea leaves. Moreover, blowing cold, dry air is more conducive to dehumidifying and cooling the tea leaves. The guide spreading guide rail 11 can be fixed vertically to the buffer dispersing head 11112 to achieve a fixed connection between the two side guide branch spreading heads.

[0047] The above-described structural design is not only more efficient, but also highly beneficial for improving tea quality. Furthermore, the two reciprocating tea-spreading and conveying devices on the front and rear sides can also be used in the oscillating structure described in Example 1.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automatic dispersing device for drying tea leaves, characterized in that, The device includes a tea-breaking device for breaking up tea leaves and outputting them downwards, and a reciprocating tea-spreading drive conveyor below the tea-breaking device. The reciprocating tea-spreading drive conveyor includes a spreading and conveying bearing surface (m) for receiving tea leaves and moving back and forth between left and right to spread the tea leaves while simultaneously conveying the spread tea leaves forward. The spreading speed of the spreading and conveying bearing surface (m) for spreading tea leaves to the left and right is greater than the conveying speed for conveying tea leaves forward. The spreading and conveying bearing surface (m) is fixed with an array of flexible hemispherical protrusions (t) for buffering falling tea leaves and preventing them from moving and stacking to the left and right. The flexible hemispherical protrusions (t) are provided with airflow channels (t1) from one side of the front of the spreading and conveying bearing surface (m) to the other side. The other side of the spreading and conveying bearing surface (m) is provided with an air extraction pipe (c1) and an air blowing pipe (c2). The reciprocating tea leaf spreading drive conveyor moves back and forth in an oscillating manner. The spreading speed is the linear velocity of the left and right oscillation of the tea leaf currently received by the spreading and conveying bearing surface (m). A guide rail (11) is installed above the spreading and conveying bearing surface (m) to guide the reciprocating tea leaf spreading drive conveyor to oscillate left and right and to spread the tea leaf from the de-clumping device downwards onto the spreading and conveying bearing surface (m). An oscillation mechanism is installed below the spreading and conveying bearing surface (m) to allow the spreading and conveying bearing surface (m) to oscillate left and right.

2. The automatic dispersing device for tea drying according to claim 1, characterized in that, The guide spreading guide rail (11) is provided with a tea guiding spreading groove (111) that runs vertically through the upper and lower parts and allows the lower output port of the unblocking device to be inserted so that the guide spreading guide rail (11) can guide the tea guiding spreading groove (111) around the lower output port of the unblocking device. The tea guiding spreading groove (111) is arc-shaped.

3. The automatic dispersing device for tea drying according to claim 2, characterized in that, The swing mechanism includes a drive motor (51), a gear set (52) mounted on the motor shaft of the drive motor (51), and a drive gear (53) meshed on the gear set (52) for the spreading and conveying bearing surface (m) to swing left and right.

4. The automatic dispersing device for tea drying according to claim 3, characterized in that, The tea breaking device includes a tea breaking machine (21), which includes a breaking mechanism (211) and a collection box (212) for collecting the tea after breaking it up by the breaking mechanism (211). The outer periphery of the output port (2121) at the lower end of the collection box (212) is provided with a guide wheel (213) that cooperates with the guide spreading guide rail (11) for guidance.

5. The automatic dispersing device for tea drying according to claim 4, characterized in that, The outer periphery of the collection chamber (212) is provided with a fixed outer protective shell (3) at intervals. A deblocking shock-absorbing spring (31) is connected between the collection chamber (212) and the fixed outer protective shell (3). The guide wheel (213) is connected to the outer surface of the lower part of the fixed outer protective shell (3).

6. The automatic dispersing device for tea drying according to claim 1, characterized in that, The spreading and conveying bearing surface (m) is formed by the surface of a reciprocating conveyor belt (s) and is in a horizontal state, or the spreading and conveying bearing surface (m) is formed by the surface of a smooth metal plate (j) that is inclined forward and downward.

7. The automatic dispersing device for tea drying according to claim 1, characterized in that, The reciprocating tea-spreading drive conveyor moves left and right in a horizontal translational manner. The spreading speed is the linear motion speed of the tea-spreading conveyor bearing surface (m) currently receiving the tea leaves. The reciprocating tea-spreading drive conveyor also includes a translation mechanism installed below the spreading conveyor bearing surface (m) for the left and right translation of the spreading conveyor bearing surface (m) and a guide spreading guide rail (11) located above the spreading conveyor bearing surface (m) for the reciprocating tea-spreading drive conveyor to swing left and right and for the tea leaves to be spread from the de-blocking device downwards onto the spreading conveyor bearing surface (m). The guide spreading guide rail (11) has a tea-spreading guide slot (111) that runs vertically through the unblocking device and allows the lower output port of the unblocking device to be inserted so that the guide spreading guide rail (11) can be guided along the lower output port of the unblocking device. The tea-spreading guide slot (111) is linear.

8. The automatic dispersing device for drying tea leaves according to claim 3, 4, 5, 6, or 7, characterized in that, The reciprocating tea-spreading drive conveyor has two units spaced apart, which are connected as one unit. The lower side of the guide spreading guide rail (11) is fixed with a front guide branch spreading head (1101) extending forward and downward, and a rear guide branch spreading head (1102) extending backward and downward. A front guide ramp (11011) is formed on the front guide branch spreading head (1101) to guide tea flow to the spreading and conveying bearing surface (m) of the forward reciprocating tea-spreading drive conveyor. A rear guide ramp (11012) is formed on the rear guide branch spreading head (1102) to guide tea flow to the spreading and conveying bearing surface (m) of the rear reciprocating tea-spreading drive conveyor. 1021), the tea guiding and spreading groove (111) is connected to the front guiding ramp (11011) and the rear guiding ramp (11021) respectively and forms a herringbone structure. The top junction of the front guiding branch spreading head (1101) and the rear guiding branch spreading head (1102) is integrally connected to form a top front and rear dividing line connecting part (11111) that divides the tea falling from the tea guiding and spreading groove (111) into two parts. The front guiding branch spreading head (1101) has a water permeable hole (1000) at the corresponding part of the front guiding ramp (11011), and the rear guiding branch spreading head (1102) also has a water permeable hole (1000) at the corresponding part of the rear guiding ramp (11021).

9. The automatic dispersing device for tea drying according to claim 8, characterized in that, A buffer dispersion head (11112) is fixed at the top front and rear dividing line connection part (11111), extending along the top front and rear dividing line connection part (11111) and having an arc-shaped cross section. It is used to contact the tea leaves and disperse them to the front and rear sides. The buffer dispersion head (11112) has a vertically penetrating vent hole, and the lower side of the buffer dispersion head (11112) is connected to an air outlet pipe.

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