Automatic quantitative tea boxing device

Abstract

The invention relates to the technical field of tea packaging, in particular to an automatic quantitative tea boxing device which comprises an outer frame and a discharging machine installed in the outer frame, a discharging channel is installed on the lower side of the discharging machine, and a weighing channel is arranged at the lower end of the discharging channel. A weighing sensor is installed at the joint of the upper end of the weighing channel and the discharging channel, the upper end of the discharging channel is communicated with a feeding port, the upper end of the feeding port is connected with a discharging machine, the portion, located on the lower portion of the feeding port, of the inner wall of the discharging channel is arranged to be an inclined face, and a filtering assembly is installed on the inclined face of the discharging channel. A headwind direction adjusting assembly connected with the filtering assembly is arranged outside the discharging channel, the headwind direction adjusting assembly is connected with an air pump, a device for adjusting the flow direction of output and input air of the air pump is arranged, an inlet of the discharging channel and the weighing channel are dredged through air blowing, blockage is dredged, the discharging speed is increased, and tea residues contained in tea leaves are removed through air suction. And tea leaves are prevented from remaining in the tea leaves.

Description

Technical Field

[0001] This invention relates to the field of tea packaging technology, specifically to an automated quantitative tea boxing device. Background Technology

[0002] Tea leaves refer to the leaves of the evergreen shrub tea tree, which can be used to make tea, as well as the beverage made from these leaves. Later, it was extended to refer to all herbal teas made from the flowers, leaves, seeds, and roots of plants, such as "chrysanthemum tea"; "cooling tea" made from various medicinal materials, etc., and is also called "lei ya" in Chinese literature.

[0003] Tea production involves steps such as picking, fixing, rolling, sun-drying, piling, air-drying, weighing and quantifying, and packaging.

[0004] In existing technology, during quantitative packaging, a feeding device is needed to continuously feed tea leaves into the weighing channel (the bottom of the weighing channel has an electronically controlled switch structure; during weighing, the bottom of the weighing channel is closed, and during packaging, the switch structure opens, guiding the tea leaves into the packaging box). When the tea leaves are fed into the weighing channel through the feeding channel, a pressure sensor performs quantitative weighing. To avoid excessive amounts of tea leaves entering the feeding channel instantly through the inlet, resulting in excessive weight during weighing, the inner diameter of the feeding channel inlet needs to be controlled. This will lead to... The small inner diameter of the feed inlet makes it easy for tea leaves to accumulate at the inlet of the feeding channel, affecting the weighing operation of the equipment. In order to accurately put the weighed tea leaves into the packaging box, the boxing channel of the weighing equipment is mostly set as a cone shape. This design results in the inner diameter of the discharge opening at the bottom of the boxing channel being smaller than that at the top. In addition, the tea leaves themselves are light and have poor flowability. When the bottom of the weighing channel is open, the tea leaves cannot pass through quickly, resulting in a slow speed of tea leaves passing through the discharge opening of the boxing channel, which affects the speed of tea leaf boxing. If the unblocking work is not automatic, it will affect the quantitative boxing operation of the equipment and reduce the efficiency of quantitative boxing.

[0005] During the production and transportation of tea, tea dregs are generated. The feeding equipment usually adopts a vibrating or mechanical feeding machine, which uses mechanical external force to drive the tea to move. This can easily cause the tea to be squeezed and produce tea fragments. If the fragments are weighed and packaged together with the tea, it will not only affect the quality of the tea, resulting in a large number of defective products after packaging, but also affect the efficiency of the equipment for quantitative packaging.

[0006] In view of the above, in order to overcome the above technical problems, the present invention designs an automated quantitative packaging device for tea. Summary of the Invention

[0007] The purpose of this invention is to provide an automated quantitative tea packaging device that solves the technical problems of tea leaves easily accumulating at the inlet of the feeding channel and the fact that the light weight and poor flowability of tea leaves prevent them from passing quickly when the bottom of the weighing channel is opened, thus affecting the tea packaging speed. By setting up a device to adjust the output and input airflow of the air pump, the device uses air blowing to clear the inlet of the feeding channel and the weighing channel, solving the technical problems of blockage and slow discharge speed. It also uses suction to solve the technical problem of tea residue in the tea leaves.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] An automated quantitative packaging device for tea includes an outer frame and a feeding machine installed inside the outer frame. A feeding channel is installed on the lower side of the feeding machine, and a weighing channel is provided at the lower end of the feeding channel. A weighing sensor is installed at the connection between the upper end of the weighing channel and the feeding channel. An inlet is connected to the upper end of the feeding channel, and the upper end of the inlet is connected to the feeding machine. The inner wall of the feeding channel is inclined at the lower part of the inlet. A filter assembly is installed on the inclined surface of the feeding channel. A reverse airflow adjustment assembly connected to the filter assembly is provided outside the feeding channel. The reverse airflow adjustment assembly is connected to an air pump and is equipped with a device to adjust the output and input airflow direction of the air pump. Air blowing is used to clear blockages in the feeding channel inlet and the weighing channel, increasing the discharge speed. Suction is used to remove tea residue contained in the tea leaves, preventing tea residue from remaining in the tea.

[0010] Preferably, the filter assembly includes a connecting channel installed on the outer wall of the feeding channel, the connecting channel communicating with the feeding channel, a first filter plate and a second filter plate being installed obliquely inside the connecting channel, the first filter plate being located at the opening of the connecting channel, a fan blade being provided inside the connecting channel, one end of the fan blade being fixedly connected to a drive shaft, the drive shaft being rotatably installed at the center of the second filter plate, a blocking member being provided between the first filter plate and the second filter plate, the blocking member being fixedly connected to the drive shaft, the upper surface of the blocking member being in contact with and movably connected to the first filter plate, the blocking member being able to block the filter holes of the first filter plate during movement, so that the air in the filter holes at this part is not circulated and cannot generate suction, causing the tea leaves adsorbed at this part to be detached from the first filter plate by gravity and fall into the weighing channel. This method can avoid the tea leaves being squeezed during the detachment process, avoid the tea leaves breaking and reduce the generation of tea residue.

[0011] Preferably, a collection bucket is fixedly installed on the lower half of the lower surface of the second filter plate, and the upper end of the collection bucket is set as a collection port. The lower surface of the shielding member is attached to and movably connected with the upper surface of the second filter plate. When the shielding member moves, it can sweep the tea residue filtered by the second filter plate into the interior of the collection bucket, which can assist in the collection of tea residue.

[0012] Preferably, the first filter plate is divided into an upper part and a lower part. A plurality of filter holes are provided through the first filter plate. The filter holes in the upper part of the first filter plate are inclined towards the feed inlet, and the filter holes in the lower part of the first filter plate are inclined towards the weighing channel. This can divert air and direct the airflow towards the weighing channel and the feed inlet, thereby reducing the turbulence of the airflow.

[0013] Preferably, the reverse wind direction adjustment component includes a housing installed outside the material feeding channel. The outer wall of the housing is symmetrically equipped with and connected to a first connecting pipe and a second connecting pipe. The included angle between the first connecting pipe and the second connecting pipe is 180 degrees. The first connecting pipe is connected to the inside of the connecting channel. Both ends of the housing are fixedly equipped with housing covers. The center of each of the two housing covers is equipped with an air supply pipe. The two air supply pipes are respectively connected to the output end and the input end of the air pump. A sealing cylinder is rotatably installed inside the housing. The sealing cylinder is provided with a first cavity and a second cavity. One end of the sealing cylinder is provided with an air inlet opening connected to the first cavity and the air supply pipe. The other end of the sealing cylinder is provided with an exhaust opening connected to the second cavity and the air supply pipe.

[0014] Preferably, the outer wall of the sealing cylinder has an air inlet communicating with the first cavity, and the outer wall of the sealing cylinder has an exhaust outlet communicating with the second cavity, and the included angle between the exhaust outlet and the air inlet is 180 degrees.

[0015] Preferably, a through groove communicating with the interior is provided on the outer wall of the outer shell, a gear is provided inside the through groove, a motor for driving the gear is installed on the outer wall of the outer shell, and a gear ring that meshes with the gear is installed on the outer wall of the sealing cylinder.

[0016] Preferably, a separator component is installed inside the feeding channel, and the separator component is connected to the second connecting pipe.

[0017] Preferably, the separating assembly includes a guide rail mounted on an inclined inner wall of the feeding channel, a separating filter plate slidably mounted on the guide rail, an upwardly inclined end of the feeding channel extending movably to the outside of the feeding channel, a cylinder parallel to the guide rail mounted outside the feeding channel, a sealing plate fixedly mounted at the lower opening of the cylinder, a piston rod movably mounted inside the cylinder, the end of the piston rod movably extending outside the upper end of the cylinder, a connector fixedly connected to the separating filter plate at the end of the piston rod, and a branch pipe fixedly mounted and connected to the lower outer wall of the cylinder, the end of the branch pipe being connected to a second connecting pipe.

[0018] Preferably, the second connecting pipe is provided with a vent, and the inner diameter of the vent is smaller than the inner diameter of the branch pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. The reverse airflow adjustment component has two working modes, corresponding to the feeding and weighing steps and the boxing step respectively. In feeding mode, the reverse airflow adjustment component uses the air pump's suction state to filter the tea leaves by the filter component. This absorbs the tea leaves inside the tea leaves, preventing them from falling into the weighing channel below, reducing the amount of tea leaves mixed in with the tea leaves, and improving the quality of the tea leaves in the box. In boxing mode, the reverse airflow adjustment component uses the air pump's exhalation state to generate airflow into the weighing and feeding channels. The air entering the feeding channel can flow through the feed inlet into the feeding machine, thereby blowing away the material accumulated at the connection between the feed inlet and the feeding machine, preventing blockage at the feed inlet. The air entering the weighing channel applies a pushing force to the tea leaves inside the weighing channel, thereby driving the tea leaves inside the weighing channel to quickly complete the boxing process, increasing the boxing speed of the equipment.

[0021] 2. In the boxing mode, the second connecting pipe draws out the air inside the cylinder, thereby driving the piston rod to move the connecting parts and the separator filter plate along the guide rail. This causes the separator filter plate to move into the material feeding channel, thus isolating the material feeding channel from the weighing channel and abutting against the inner wall of the material feeding channel. In the boxing mode after weighing, this catches the tea leaves and prevents them from falling further, avoiding excessive weight, reducing tea consumption, and improving the accuracy of quantitative boxing of tea. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the outer casing of the present invention;

[0024] Figure 3 This is a schematic diagram of the sealing cylinder of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection channel of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the present invention where the shielding component is separated from the first filter plate and the second filter plate;

[0027] Figure 6 This is a schematic diagram of the structure of the first filter plate of the present invention;

[0028] Figure 7 This is a schematic diagram of the guide rail structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the material feeding channel of the present invention.

[0030] In the diagram: 1. Outer frame; 2. Feeder; 3. Feed inlet; 4. Feeding channel; 5. Weighing channel; 6. Air pump; 7. Reverse airflow adjustment component; 71. Outer shell; 711. First connecting pipe; 712. Second connecting pipe; 72. Shell cover; 721. Air supply pipe; 73. Sealing cylinder; 731. First cavity; 7311. Air inlet opening; 7312. Air inlet outlet; 732. Second cavity; 7321. Exhaust opening; 7322. 74. Exhaust outlet; 75. Through groove; 76. Gear; 77. Gear ring; 88. Motor; 89. Filter assembly; 80. Connecting channel; 81. First filter plate; 82. Filter hole; 83. Shielding component; 84. Second filter plate; 85. Collection bucket; 86. Drive shaft; 97. Fan blade; 98. Separating assembly; 91. Guide rail; 92. Separating filter plate; 93. Cylinder; 94. Piston rod; 95. Sealing plate; 96. Connecting component; 97. Branch pipe. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1 to 8 This invention provides an automated quantitative packaging device for tea, the technical solution of which is as follows:

[0033] An automated quantitative packaging device for tea includes an outer frame 1 and a feeding machine 2 installed inside the outer frame 1. A feeding channel 4 is installed on the lower side of the feeding machine 2, which continuously feeds tea leaves into the feeding channel 4. A weighing channel 5 is located at the lower end of the feeding channel 4. A weighing sensor is installed at the connection between the upper end of the weighing channel 5 and the feeding channel 4. During use, the weighing sensor monitors the overall weight of the feeding channel 4 in real time. When tea leaves enter the weighing channel 5, the weight of the weighing channel 5 increases. The weighing sensor senses this increase in weight and adjusts its weighing accordingly. The tea leaves enter the weighing channel 5 for weighing. The bottom of the weighing channel 5 is an electronically controlled switch structure. During weighing, the bottom of the weighing channel 5 is in a closed state. When packing, the switch structure is opened, and the opening at the bottom of the weighing channel 5 guides the tea leaves into the packaging box. The upper end of the feeding channel 4 is connected to the feed inlet 3. The upper end of the feed inlet 3 is connected to the feeding machine 2. The inner wall of the feeding channel 4 is set as an inclined surface at the lower part of the feed inlet 3. A filter assembly 8 is installed on the inclined surface of the feeding channel 4. A reverse airflow adjustment assembly 7 connected to the filter assembly 8 is set on the outside of the feeding channel 4. The reverse airflow adjustment assembly 7 is connected to the air pump 6.

[0034] As one embodiment of the present invention, refer to Figure 4 , Figure 5 and Figure 6 The filter assembly 8 includes a connecting channel 81 installed on the outer wall of the feeding channel 4, which communicates with the feeding channel 4. A first filter plate 82 and a second filter plate 84 are installed obliquely inside the connecting channel 81, arranged parallel to each other. Both the first filter plate 82 and the second filter plate 84 are circular. The first filter plate 82 is used to filter tea leaves, preventing them from passing through the filter holes 821. The second filter plate 84 is used to filter tea residue from the air. The first filter plate 82 is set... At the opening of the connecting channel 81, the tea leaves are arranged such that when they detach from the first filter plate 82, they fall into the weighing channel 5 at the bottom of the feeding channel 4. A fan blade 86 is provided inside the connecting channel 81. One end of the fan blade 86 is fixedly connected to a drive shaft 85. The drive shaft 85 is rotatably installed at the center of the second filter plate 84. A shielding member 83 is provided between the first filter plate 82 and the second filter plate 84. The shielding member 83 is fixedly connected to the drive shaft 85. The upper surface of the shielding member 83 is in contact with and movably connected to the first filter plate 82.

[0035] As one embodiment of the present invention, refer to Figure 5 and Figure 6 A collection bucket 841 is fixedly installed on the lower half of the lower surface of the second filter plate 84. The bottom of the collection bucket 841 is provided with a removable sealing cover. When the equipment is stopped, the sealing cover can be removed to take out the tea residue filtered inside. The upper end of the collection bucket 841 is set as a collection port. The lower surface of the shield 83 is attached to and movably connected to the upper surface of the second filter plate 84.

[0036] As one embodiment of the present invention, refer to Figure 6 The first filter plate 82 is divided into an upper part and a lower part. Several filter holes 821 are provided through the first filter plate 82. The filter holes 821 of the upper part of the first filter plate 82 are inclined towards the feed inlet 3. In this way, when the air flows through the filter holes 821 of the upper part of the first filter plate 82, the air can be guided to the feed inlet 3. The filter holes 821 of the lower part of the first filter plate 82 are inclined towards the weighing channel 5. In this way, when the air flows through the filter holes 821 of the lower part of the first filter plate 82, the air can be guided to the weighing channel 5, thereby helping to clear the tea leaves inside the weighing channel 5.

[0037] As one embodiment of the present invention, refer to Figure 1 , Figure 2 , Figure 3The reverse wind direction adjustment component 7 includes a housing 71 installed outside the feeding channel 4. A first connecting pipe 71 and a second connecting pipe 712 are symmetrically installed and connected to the outer wall of the housing 71. The included angle between the first connecting pipe 711 and the second connecting pipe 712 is 180 degrees. The first connecting pipe 711 is connected to the inside of the connecting channel 81. A housing cover 72 is fixedly installed at both ends of the housing 71. An air supply pipe 721 is installed at the center of each of the two housing covers 72. The two air supply pipes 721 are respectively connected to the output end and input end of the air pump 6. A sealing cylinder 73 is rotatably installed inside the housing 71. The sealing cylinder 73 has a first cavity 731 and a second cavity 732 inside. One end of the sealing cylinder 73 has an air inlet 7311 connected to the first cavity 731 and the air supply pipe 721. The other end of the sealing cylinder 73 has an exhaust 7321 connected to the second cavity 732 and the air supply pipe 721. An opening is formed on the outer wall of the sealing cylinder 73. The air pump 6 has an air inlet 7312 that communicates with the first cavity 731. The outer wall of the sealing cylinder 73 has an exhaust outlet 7322 that communicates with the second cavity 732. The angle between the exhaust outlet 7322 and the air inlet 7312 is 180 degrees. The outer wall of the outer shell 71 has a through groove 74 that communicates with the interior. A gear 75 is installed inside the through groove 74. A motor 76 for driving the gear 75 is installed on the outer wall of the outer shell 71. The output end of the motor 76 is fixedly connected to the gear 75, thereby driving the gear 75 to perform transmission work. A gear ring 751 that meshes with the gear 75 is installed on the outer wall of the sealing cylinder 73. In use, the input end of the air pump 6 is always connected to the air inlet 7311, the first cavity 731, and the air inlet 7312 through the air supply pipe 721. During adjustment, the sealing cylinder 73 is rotated to connect the air inlet 7312 with the first connecting pipe 711 or the second connecting pipe 712 to adjust the inhalation or blowing mode.

[0038] The output end of the air pump 6 is always connected to the exhaust opening 7321, the second cavity 732, and the exhaust outlet 7322 through the air supply pipe 721;

[0039] In order to ensure that the two air supply pipes 721 are always connected to the exhaust opening 7321 and the air inlet opening 7311 when the sealing cylinder 73 rotates, both air supply pipes 721 are installed at the center of the cover 72, and the exhaust opening 7321 and the air inlet opening 7311 are respectively located at the center of both ends of the sealing cylinder 73.

[0040] As one embodiment of the present invention, refer to Figure 1 and Figure 7The feeding channel 4 is equipped with a separator component 9, which is connected to the second connecting pipe 712. The separator component 9 includes a guide rail 91 inclinedly installed on the inner wall of the feeding channel 4, and a separator filter plate 92 slidably installed on the guide rail 91. The separator filter plate 92 is located at the bottom of the feeding channel 4, thereby isolating the feeding channel 4 from the weighing channel 5 after weighing, catching the unweighed tea leaves, and reducing tea waste. During movement, it can move along the inclined angle of the guide rail 91, so that the separator filter plate 92 is also in an inclined state. When catching tea leaves, it can make the tea leaves slide towards the lower end, preventing the tea leaves from spreading flat on the surface of the separator filter plate 92 and affecting airflow. The inclined setting of the separator filter plate 92 can make the tea leaves slide downwards under the influence of gravity during the movement to the outside of the feeding channel 4. One end of the feeding channel 4 extends upwards and moves to the outside of the feeding channel 4. A cylinder 93 parallel to the guide rail 91 is installed outside the feeding channel 4. A sealing plate 95 is fixedly installed at the lower opening of the cylinder 93. The sealing plate 95 seals the lower end of the cylinder 93, so that the space inside the cylinder 93 between the sealing plate 95 and the piston rod 94 is closed. The piston rod 94 is movably installed inside the cylinder 93. The end of the piston rod 94 extends movably to the outside of the upper end of the cylinder 93. A connector 96 fixedly connected to the separator filter plate 92 is installed at the end of the piston rod 94. A branch pipe 97 is fixedly installed and connected to the lower outer wall of the cylinder 93. The branch pipe 97 is located on one side of the sealing plate 95. Air entering will enter the space between the sealing plate 95 and the piston rod 94. The end of the branch pipe 97 is connected to the second connecting pipe 712.

[0041] As one embodiment of the present invention, refer to Figure 8 The second connecting pipe 712 is provided with an air vent, and the inner diameter of the air vent is smaller than the inner diameter of the branch pipe 97. This arrangement allows the internal gas of the branch pipe 97 to push the piston rod 94 to move and adjust the working mode during the first flow of air in the inhalation and blowing states.

[0042] In the boxing mode, the separator filter plate 92 moves into the material feeding channel 4 and abuts against the inner wall of the material feeding channel 4. This can prevent the tea leaves from falling further down after the weighing and boxing mode is completed, thus avoiding the tea leaves from exceeding the weight limit, improving the accuracy of weighing, and reducing the consumption of tea leaves.

[0043] In the feeding and weighing mode, the separator filter plate 92 moves to the outside of the feeding channel 4 along the guide rail 91 to prevent the separator filter plate 92 from catching the tea leaves in the weighing mode and to ensure that the tea leaves fall into the weighing channel 5.

[0044] Working principle:

[0045] The equipment operates in two modes: feeding and weighing, and boxing.

[0046] In use, the motor 76 can drive the gear 75 and the gear ring 751 to move and transmit power, thereby driving the sealing cylinder 73 to move and adjust the working mode, adjusting the sealing cylinder 73 to the unloading and weighing mode or the boxing mode.

[0047] In the material feeding and weighing mode, the sealing cylinder 73 rotates, which connects the air inlet 7312 with the first connecting pipe 711, thereby connecting the input end of the air pump 6 with the air delivery pipe 721, the air inlet 7311, the first cavity 731, the air inlet 7312 and the first connecting pipe 711, so that the first connecting pipe 711 and the connecting channel 81 are in the air intake mode, which can perform the work of sucking up debris;

[0048] At the same time, the exhaust outlet 7322 is connected to the second connecting pipe 712, thereby connecting the output end of the air pump 6 to the air supply pipe 721, the exhaust opening 7321, the second cavity 732, the exhaust outlet 7322 and the second connecting pipe 712, so that the second connecting pipe 712 is in the blowing mode.

[0049] In the boxing mode, the sealing cylinder 73 rotates 180°, causing the exhaust outlet 7322 and the air inlet 7312 on the outer wall of the sealing cylinder 73 to move synchronously, thereby driving the air inlet 7312 to connect with the second connecting pipe 712, so that the input end of the air pump 6 is connected with the air delivery pipe 721, the air inlet opening 7311, the first cavity 731, the air inlet 7312 and the second connecting pipe 712, so that the second connecting pipe 712 is in the air intake mode;

[0050] At the same time, the exhaust outlet 7322 is connected to the first connecting pipe 711, so that the output end of the air pump 6 is connected to the air supply pipe 721, the exhaust opening 7321, the second cavity 732, the exhaust outlet 7322 and the first connecting pipe 711, thereby putting the first connecting pipe 711 and the connecting channel 81 into the air blowing mode, which can increase the air pressure inside the connecting channel 81 and the feeding channel 4, thereby assisting the tea discharge work (the above is the working principle of the reverse wind direction adjustment component 7).

[0051] In the feeding and weighing mode (in this mode, the reverse wind direction adjustment component 7 adjusts the filter component 8 to the air intake state), the feeder 2 continuously feeds tea leaves into the feed inlet 3 and the feeding channel 4. When the tea leaves pass through the feeding channel 4, the air flow inside the connecting channel 81, which is in the air intake state, causes the first filter plate 82 to generate suction, drawing the tea leaves through the filter holes 821 of the first filter plate 82 into the connecting channel 81, where they are filtered by the second filter plate 84. The small volume of tea leaves adsorbed by the first filter plate 82 will remain on the surface of the first filter plate 82. At the same time, the fan blades 86 located inside the connecting channel 81 are driven by the air flow. The moving shaft 85 and the blocking member 83 move (the blocking member 83 rotates 360° with the driving shaft 85 and can completely cover the lower surface of the first filter plate 82). During the movement of the blocking member 83, the filter holes 821 of the first filter plate 82 in the forward direction of the upper blocking member 83 are blocked, so that the air in the filter holes 821 in this part does not circulate and cannot generate suction. The tea leaves adsorbed in this part are detached from the first filter plate 82 by gravity and fall into the weighing channel 5 for weighing. (In addition, this method can avoid the problem of tea leaves being squeezed due to the pressure generated by mechanical drive during the detachment process, and reduce the production of tea residue).

[0052] During the movement of the shielding member 83, the tea dregs filtered on the surface of the second filter plate 84 can be driven to move. When the tea dregs pass through the collection port of the collection bucket 841, they fall into the collection bucket 841 and are collected (the above is the working principle of the filter assembly 8).

[0053] In the boxing mode (in this mode, the reverse airflow adjustment component 7 adjusts the filter component 8 to the air blowing state), the air blowing of the filter component 8 increases the air pressure inside the feeding channel 4, causing air to flow into the weighing channel 5 and the feeding channel 4. The air entering the feeding channel 4 can flow through the feed inlet 3 to the inside of the feeding machine 2, thereby blowing away the material accumulated at the connection between the feed inlet 3 and the feeding machine 2; the air entering the weighing channel 5 applies a pushing force to the tea leaves inside the weighing channel 5, allowing the tea leaves to quickly pass through the lower opening of the weighing channel 5 for boxing (the above is the working principle of using air blowing to clear the feeding channel 4 and the weighing channel 5).

[0054] In the weighing mode (when the second connecting pipe 712 is in the air blowing mode), the second connecting pipe 712 blows air into the cylinder 93, thereby increasing the gas pressure inside the cylinder 93. This drives the piston rod 94 to move the connecting piece 96 and the separating filter plate 92 along the guide rail 91, thus moving the separating filter plate 92 to the outside of the feeding channel 4 and preventing the separating filter plate 92 from catching the tea leaves in the weighing mode.

[0055] In the boxing mode (the second connecting pipe 712 is in the air suction mode), the second connecting pipe 712 sucks out the air inside the cylinder 93, thereby driving the piston rod 94 to move the connecting piece 96 and the separator filter plate 92 along the guide rail 91. This causes the separator filter plate 92 to move into the material feeding channel 4 and abut against the inner wall of the material feeding channel 4. This can prevent the tea leaves from falling further downwards in the boxing mode after weighing, thus avoiding the tea leaves from exceeding the weight limit (the above is the working principle of the separator component 9).

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated quantitative packaging device for tea, characterized in that: Includes an outer frame (1) and a feeding machine (2) installed inside the outer frame (1). A feeding channel (4) is installed on the lower side of the feeding machine (2). The upper end of the feeding channel (4) is connected to a feed inlet (3). The upper end of the feed inlet (3) is connected to the feeding machine (2). A weighing channel (5) is provided at the lower end of the feeding channel (4). A weighing sensor is installed at the connection between the upper end of the weighing channel (5) and the feeding channel (4). The inner wall of the feeding channel (4) is set as an inclined surface at the lower part of the feed inlet (3). The inclined surface of the feeding channel (4) is... A filter assembly (8) is installed at the position. A reverse wind direction adjustment assembly (7) connected to the filter assembly (8) is provided outside the feeding channel (4). The reverse wind direction adjustment assembly (7) is connected to an air pump (6). The reverse wind direction adjustment assembly (7) has two working modes: feeding and weighing and boxing. In the feeding mode, the reverse wind direction adjustment assembly (7) uses the air pump (6) to filter the tea residue of the tea leaves by the filter assembly (8). In the boxing mode, the reverse wind direction adjustment assembly (7) uses the air pump (6) to exhale and clear the airflow between the weighing channel (5) and the feeding channel (4).

2. The automated quantitative packaging device for tea according to claim 1, characterized in that: The filter assembly (8) includes a connecting channel (81) installed on the outer wall of the feeding channel (4). The connecting channel (81) is connected to the feeding channel (4). A first filter plate (82) and a second filter plate (84) are installed obliquely inside the connecting channel (81). The first filter plate (82) is located at the opening of the connecting channel (81). A fan blade (86) is provided inside the connecting channel (81). A drive shaft (85) is fixedly connected to one end of the fan blade (86). The drive shaft (85) is rotatably installed at the center of the second filter plate (84). A shielding member (83) is provided between the first filter plate (82) and the second filter plate (84). The shielding member (83) is fixedly connected to the drive shaft (85). The upper surface of the shielding member (83) is in contact with and movably connected to the first filter plate (82).

3. The automated quantitative packaging device for tea according to claim 2, characterized in that: A collection bucket (841) is fixedly installed on the lower half of the lower surface of the second filter plate (84). The upper end of the collection bucket (841) is set as a collection port. The lower surface of the shield (83) is in contact with and movably connected to the upper surface of the second filter plate (84).

4. The automated quantitative packaging device for tea according to claim 3, characterized in that: The first filter plate (82) is divided into an upper part and a lower part. A plurality of filter holes (821) are provided through the first filter plate (82). The filter holes (821) of the upper part of the first filter plate (82) are inclined toward the feed inlet (3), and the filter holes (821) of the lower part of the first filter plate (82) are inclined toward the weighing channel (5).

5. The automated quantitative packaging device for tea according to claim 4, characterized in that: The reverse wind direction adjustment component (7) includes a housing (71) installed outside the feeding channel (4). The outer wall of the housing (71) is symmetrically equipped with and connected to a first connecting pipe (711) and a second connecting pipe (712). The included angle between the first connecting pipe (711) and the second connecting pipe (712) is 180 degrees. The first connecting pipe (711) is connected to the inside of the connecting channel (81). Both ends of the housing (71) are fixedly equipped with housing covers (72). Air supply pipes (721) are installed at the center of both housing covers (72). The two air supply pipes (721) are respectively connected to the output end and input end of the air pump (6). A sealing cylinder (73) is rotatably installed inside the outer shell (71). The sealing cylinder (73) is provided with a first cavity (731) and a second cavity (732). One end of the sealing cylinder (73) is provided with an air inlet (7311) that is connected to the first cavity (731) and the air supply pipe (721). The other end of the sealing cylinder (73) is provided with an exhaust outlet (7321) that is connected to the second cavity (732) and the air supply pipe (721).

6. The automated quantitative packaging device for tea according to claim 5, characterized in that: The outer wall of the sealing cylinder (73) is provided with an air inlet (7312) communicating with the first cavity (731), and the outer wall of the sealing cylinder (73) is provided with an exhaust outlet (7322) communicating with the second cavity (732). The included angle between the exhaust outlet (7322) and the air inlet (7312) is 180 degrees.

7. The automated quantitative packaging device for tea according to claim 6, characterized in that: The outer wall of the outer casing (71) is provided with a through groove (74) communicating with the interior. A gear (75) is provided inside the through groove (74). A motor (76) for driving the gear (75) is installed on the outer wall of the outer casing (71). A gear ring (751) that meshes with the gear (75) is installed on the outer wall of the sealing cylinder (73).

8. The automated quantitative packaging device for tea according to claim 7, characterized in that: The material feeding channel (4) is equipped with a partition component (9), which is connected to the second connecting pipe (712).

9. The automated quantitative packaging device for tea according to claim 8, characterized in that: The separating component (9) includes a guide rail (91) installed on the inner wall of the feeding channel (4) at an incline. A separating filter plate (92) is slidably installed on the guide rail (91). One end of the feeding channel (4) extends movably to the outside of the feeding channel (4). A cylinder (93) parallel to the guide rail (91) is installed outside the feeding channel (4). A sealing plate (95) is fixedly installed at the lower opening of the cylinder (93). A piston rod (94) is movably installed inside the cylinder (93). The end of the piston rod (94) extends movably to the upper outside of the cylinder (93). A connector (96) fixedly connected to the separating filter plate (92) is installed at the end of the piston rod (94). A branch pipe (97) is fixedly installed and connected to the lower outer wall of the cylinder (93). The end of the branch pipe (97) is connected to the second connecting pipe (712).

10. The automated quantitative packaging device for tea according to claim 9, characterized in that: The second connecting pipe (712) is provided with a vent, and the inner diameter of the vent is smaller than the inner diameter of the branch pipe (97).

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