Tea seed squeezing device and method for oil tea processing

Abstract

The invention belongs to the technical field of tea seed squeezing, and relates to a tea seed squeezing device and method for oil tea processing, the tea seed squeezing device comprises a rack, and the rack is provided with an oil residue separation mechanism communicated with a cylinder; a pressure bearing disc is connected to the inner side of the first end of the barrel, an extrusion cone located in the barrel is movably arranged between the first end and the second end of the barrel, an extrusion space is formed in the barrel between the extrusion cone and the pressure bearing disc, the extrusion cone is driven by a rotary driving set to rotate, the rotary driving set is arranged on the barrel, and the extrusion cone is driven by a linear driving set to move. The linear driving set is arranged on the barrel, a scraping plate located in the extrusion space and suitable for being in contact fit with the pressure bearing disc is slidably arranged on the extrusion cone, and a compression spring is connected between the scraping plate and the extrusion cone. The squeezing cone performs double squeezing on tea seeds in a rotary rolling and movable squeezing mode, so that the squeezing effect is improved, the tea seeds can be dispersed under rotary friction driving of the squeezing cone, meanwhile, the tea seeds are stirred in a self-adaptive mode in cooperation with the scraping plate, and then the tea seeds at different positions are fully squeezed.

Description

Technical Field

[0001] The present invention belongs to the technical field of tea seed pressing, and specifically relates to a tea seed pressing device and method for oil-tea camellia processing. Background Art

[0002] Oil-tea camellia is an important woody oil crop, and the tea seeds in its fruits are rich in high-quality oils. Camellia oil is widely used in the fields of food, medicine, cosmetics, etc. due to its high nutritional value and various health benefits.

[0003] The traditional oil-tea camellia seed pressing process mainly includes the following steps: 1. The tea seeds are subjected to pretreatment steps such as cleaning, drying, shelling, baking or steaming. 2. The pretreated tea seeds are put into a pressing device for mechanical pressing to extract oil. 3. The oil is separated from the residue by centrifugal separation or other means.

[0004] For the pressing device, for example, the patent with the patent publication number CN221737161U discloses a camellia seed pressing device. This tea seed pressing device puts the tea seeds into the oil seepage pipe, and then controls the hydraulic rod to drive the pressing head to press down the camellia seeds in the oil seepage pipe for extrusion to extract oil. This conventional and single continuous pressing method easily causes local compaction of the tea seeds during the pressing process, and it is impossible to disperse the local tea seeds and then apply pressure, resulting in difficulty in extracting oil in some areas, and continuous high-pressure operation requires a large amount of energy consumption.

[0005] According to the disadvantages existing in the above-mentioned prior art, a tea seed pressing device and method for oil-tea camellia processing are specially designed to overcome the disadvantages of the prior art, which have the effect of double pressing the tea seeds by means of rotary rolling and moving extrusion, automatically dispersing the local tea seeds under the action of rotary friction, and having good pressing effect. Summary of the Invention

[0006] The purpose of the present invention is to overcome the above-mentioned disadvantages of the prior art, and provide a tea seed pressing device and method for oil-tea camellia processing, which have the effect of double pressing the tea seeds by means of rotary rolling and moving extrusion, automatically dispersing the local tea seeds under the action of rotary friction, and having good pressing effect.

[0007] To solve the above technical problems, the present invention provides a tea seed pressing device for camellia oleifera processing, which includes a machine frame, a cylinder connected to the machine frame, and a cylinder door provided on the upper side of the first end of the cylinder. Opening the cylinder door allows tea seeds to be added into the cylinder. An oil residue separation mechanism communicating with the lower part of the cylinder is provided on the machine frame, and the oil residue separation mechanism is used to separate camellia oil and tea seed residue; a pressure-bearing plate is connected to the inner side of the first end of the cylinder, and an extrusion cone located inside the cylinder is movable between the first end and the second end of the cylinder. An extrusion space is formed inside the cylinder between the extrusion cone and the pressure-bearing plate. The tea seeds added when the cylinder door is opened will fall into the extrusion space of the cylinder. The extrusion cone is driven to rotate by a rotation drive group provided on the cylinder, and the extrusion cone is driven to move by a linear drive group provided on the cylinder. Four scraping plates located in the extrusion space and adapted to contact and cooperate with the pressure-bearing plate slide on the extrusion cone. The four scraping plates are circumferentially arranged evenly. A compression spring located inside the extrusion cone is connected between the scraping plate and the extrusion cone, and the compression spring is used to reset the scraping plate after sliding.

[0008] Preferably, the rotation drive group includes a bracket connected to the inner side of the second end of the cylinder and a turntable rotatably provided on the bracket. The turntable is located to the left of the extrusion cone. A transmission group is provided between the right side of the turntable and the left side of the extrusion cone. The transmission group is composed of a first connecting rod rotatably provided on the turntable and a second connecting rod rotatably provided on the extrusion cone. The first connecting rod and the second connecting rod in the transmission group are hinged and cooperated. A driving motor is installed at the second end of the cylinder, and the output shaft of the driving motor is connected to the turntable.

[0009] Preferably, the linear drive group includes four circumferentially evenly arranged transmission rods connected to the extrusion cone. The left end of the transmission rod is connected with a contact block. An extrusion ring is provided in the middle of the cylinder. The extrusion ring is located between the second end of the cylinder and the extrusion cone. A guiding track is opened on the extrusion ring. The guiding track is composed of a plurality of V-shaped bending parts connected end to end. The bending direction of the bending part is the axial direction of the cylinder, and the contact block slides on the guiding track.

[0010] Preferably, the linear drive group further includes two groups of front and rear opposite support plates connected to the inner side of the cylinder. Cylinders are installed on both groups of support plates. The telescopic rods of the two cylinders are jointly connected to the extrusion ring. The extrusion ring has a sliding rod sliding on the cylinder, and the extrusion ring is slidably provided on the cylinder in a manner of sliding along the axial direction of the cylinder through the sliding rod.

[0011] Preferably, it further includes a scraping ring connected to the cylinder. The scraping ring is in contact and cooperation with the outer side of the extrusion cone. The middle part of the pressure-bearing plate is recessed away from the extrusion cone, and the middle part of the extrusion cone protrudes towards the pressure-bearing plate. The protruding part of the extrusion cone is adapted to the recessed part of the pressure-bearing plate.

[0012] Preferably, the oil-residue separation mechanism includes a material pipe connected to the lower part of the frame, a material discharge channel with a built-in control valve is connected between the upper right side of the material pipe and the extrusion space of the barrel, a spiral auger suitable for rotating to transport the slag from right to left is rotated on the material pipe, the driving motor is a double-axis motor, one of the output shafts of the driving motor is connected to the turntable, and a synchronous belt group is transmitted between the other output shaft of the driving motor and the left end of the spiral auger, the lower left end of the material pipe is connected to a slag discharge pipe and an oil discharge pipe located between the slag discharge pipe and the material discharge channel, a filter is provided between the upper part of the oil discharge pipe and the material pipe, and both the oil discharge pipe and the slag discharge pipe are built-in with an opening and closing valve.

[0013] Preferably, the control valve includes a baffle plate which slides on the material discharge channel and blocks the material discharge channel, and a connecting port is opened on the baffle plate for allowing slag to pass through the material discharge channel. A guide rod is connected to one side of the cylinder, and a slide plate connected to the baffle plate slides on the guide rod, and a tension spring surrounding the guide rod is connected between the slide plate and the cylinder.

[0014] Preferably, it also includes a resistance ball rotatably arranged on the upper left side of the slide plate, the middle part of the extrusion cone has a cylindrical part that movably penetrates the cylinder, and the cylindrical part is connected with a resistance plate located on the left side of the resistance ball, and the resistance plate is suitable for extruding the resistance ball.

[0015] The present invention provides a tea seed squeezing method according to the tea seed squeezing device, comprising: S1) Open the cylinder door, add tea seeds into the cylinder, the tea seeds fall between the extrusion cone and the pressure plate, and close the cylinder door; S2) driving the extrusion cone to perform double squeezing on the tea seeds on the pressure plate by means of rotational rolling and movement squeezing; S3) The scraper adaptively stirs and disperses the tea seeds between the extrusion cone and the pressure plate as the extrusion cone rotates and moves; S4) The residue in the cylinder is finally separated into tea oil and tea seed residue by the oil-residue separation mechanism.

[0016] The present invention overcomes the shortcomings of the prior art and has the following beneficial effects: 1. The extrusion cone performs double squeezing of tea seeds by means of rotating rolling and moving squeezing, thereby improving the squeezing effect. The rotating friction of the extrusion cone can also disperse the tea seeds, and the scraper can adaptively stir the tea seeds, thereby fully squeezing the tea seeds in different positions.

[0017] 2. The V-shaped bending part in the guide track is used to continuously squeeze the resistance block to move left and right along the axial direction of the cylinder, so that the extrusion cone moves left and right during rotation, thereby being able to synchronously realize the dual squeezing functions of rotary rolling and mobile squeezing only by the drive of the drive motor.

[0018] 3. During the initial pressing, reduce the distance of the rightward movement of the extrusion cone, so that there is more extrusion space for the tea seeds to flow. As the pressing time and degree increase, the distance of the rightward movement of the extrusion cone can be increased, so as to more fully press the tea seeds in the extrusion space and gradually press the tea seeds.

[0019] 4. In the later stage of tea seed pressing, utilize the contact between the contact plate moving rightward and the contact ball, and the reset function of the tension spring. With the reciprocating left and right movement of the extrusion cone, the automatic intermittent feeding operation of the feeding channel is realized to avoid blockage. Each step is interrelated and coordinated with each other. Description of the Drawings

[0020] Figure 1 It is an assembly schematic diagram of the present invention.

[0021] Figure 2 It is a cross-sectional view of the cylinder of the present invention.

[0022] Figure 3 It is a front view of the present invention, in which the cylinder is fully sectioned.

[0023] Figure 4 It is a cross-sectional view of the extrusion cone of the present invention.

[0024] Figure 5 It is a schematic diagram of the extrusion cone and the rotary drive group of the present invention.

[0025] Figure 6 It is a schematic diagram of the linear drive group of the present invention.

[0026] Figure 7 For the present invention Figure 3 Enlarged view of part A.

[0027] Figure 8 It is a schematic diagram of the right side direction of the present invention.

[0028] Figure 9 It is a cross-sectional view of the feeding channel of the present invention.

[0029] The reference signs in the drawings provided by the present invention are: 1-frame, 2-barrel body, 21-barrel door, 22-scraping ring, 3-pressure bearing disc, 4-extrusion cone, 40-cylindrical part, 41-scraper, 42-compression spring, 5-rotation drive group, 51-bracket, 52-rotating disc, 53-first connecting rod, 54-second connecting rod, 55-drive motor, 6-linear drive group, 61-driving rod, 62-abutting block, 63-extrusion ring, 630-guiding track, 64-sliding rod, 65-supporting plate, 66-cylinder, 7-oil residue separation mechanism, 71-material pipe, 72-material discharging channel, 721-baffle plate, 7210-communication port, 722-guiding rod, 723-sliding plate, 724-tension spring, 725-abutting ball, 73-screw auger, 74-synchronous belt group, 75-oil discharging pipe, 76-residue discharging pipe, 8-abutting disc. Detailed implementation manners

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0031] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The technical solutions of the present invention will be clearly and completely described below with reference to the drawings. It should be noted that the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] A tea seed pressing device for camellia oleifera processing, as Figures 1 - 4As shown in the figure, it includes a machine frame 1, a cylinder body 2 connected to the machine frame 1, and a cylinder door 21 provided on the upper side of the first end (right end) of the cylinder body 2. Opening the cylinder door 21 allows tea seeds to be added into the cylinder body 2. An oil residue separation mechanism 7 communicating with the lower part of the cylinder body 2 is provided on the machine frame 1. The oil residue separation mechanism 7 is used to separate tea oil and tea seed residue. A pressure-bearing disc 3 is connected to the inner side of the first end of the cylinder body 2. An extrusion cone 4 located inside the cylinder body 2 is movable between the first end and the second end (left end) of the cylinder body 2. An extrusion space is formed inside the cylinder body 2 between the extrusion cone 4 and the pressure-bearing disc 3. The tea seeds added when the cylinder door 21 is opened will fall into the extrusion space of the cylinder body 2. The extrusion cone 4 is driven to rotate by a rotation drive group 5, and the rotation drive group 5 is provided on the cylinder body 2. After closing and locking the cylinder door 21, the rotation drive group 5 is controlled to drive the extrusion cone 4 to rotate and roll the tea seeds on the pressure-bearing disc 3. The extrusion cone 4 is driven to move by a linear drive group 6, and the linear drive group 6 is provided on the cylinder body 2. The linear drive group 6 will drive the rotating extrusion cone 4 to move left and right synchronously to extrude the tea seeds on the pressure-bearing disc 3, so as to perform double pressing on the tea seeds by means of rotation rolling and moving extrusion, thereby improving the pressing effect. Also, since the pressure-bearing disc 3 does not rotate, the tea seeds can be dispersed under the driving of the rotational friction of the extrusion cone 4, and then the tea seeds at different positions can be fully pressed. Four scraping plates 41 which are located in the extrusion space and are suitable for contacting and cooperating with the pressure-bearing disc 3 slide on the extrusion cone 4. The four scraping plates 41 are arranged circumferentially and evenly. During the process of the extrusion cone 4 rotating and rolling the tea seeds on the pressure-bearing disc 3, the extrusion cone 4 will also drive the scraping plates 41 to rotate and stir the tea seeds in the extrusion space, so as to automatically disperse the local tea seeds and then cooperate with the double pressing of rotation rolling and moving extrusion. During the process of the extrusion cone 4 moving right to extrude the tea seeds on the pressure-bearing disc 3, the extrusion cone 4 will also drive the scraping plates 41 to move right to keep in contact with the pressure-bearing disc 3. As the pressure-bearing disc 3 blocks the scraping plates 41, the scraping plates 41 will gradually slide and retract into the inside of the extrusion cone 4. A compression spring 42 located inside the extrusion cone 4 is connected between the scraping plates 41 and the extrusion cone 4. The compression spring 42 is used to reset the sliding scraping plates 41. Therefore, when the extrusion cone 4 moves left to drive the scraping plates 41 away from the pressure-bearing disc 3, the compression spring 42 is used to make the scraping plates 41 extend out of the extrusion cone 4 for resetting.

[0033] As Figure 3 and Figure 5As shown, the rotation drive group 5 includes a bracket 51 connected to the inner side of the second end of the cylinder body 2 and a turntable 52 rotatably arranged on the bracket 51. The turntable 52 is located to the left of the extrusion cone 4. A transmission group is provided between the right side of the turntable 52 and the left side of the extrusion cone 4. Rotating the turntable 52 can drive the extrusion cone 4 to rotate through the transmission group. The transmission group is composed of a first connecting rod 53 rotatably arranged on the turntable 52 and a second connecting rod 54 rotatably arranged on the extrusion cone 4. The first connecting rod 53 and the second connecting rod 54 in the transmission group are hinged together. Therefore, when the linear drive group 6 drives the extrusion cone 4 to move, when the extrusion cone 4 moves to the right and approaches the pressure-bearing disc 3, the extrusion cone 4 will pull the second connecting rod 54 and the first connecting rod 53 to straighten. When the extrusion cone 4 moves to the left and away from the pressure-bearing disc 3, the extrusion cone 4 will push the second connecting rod 54 and the first connecting rod 53 to fold (as Figure 5 ), a drive motor 55 is installed at the second end of the cylinder body 2, and the output shaft of the drive motor 55 is connected to the turntable 52 to control the drive motor 55 to drive the turntable 52 to rotate.

[0034] As Figure 3 and Figure 6 shown, the linear drive group 6 includes four transmission rods 61 that are circumferentially and evenly arranged and connected to the extrusion cone 4. A contact block 62 is connected to the left end of the transmission rod 61. When the extrusion cone 4 rotates, it will drive the contact block 62 to rotate through the transmission rod 61. An extrusion ring 63 is provided in the middle of the cylinder body 2. The extrusion ring 63 is located between the second end of the cylinder body 2 and the extrusion cone 4. A guide track 630 is formed on the extrusion ring 63. The guide track 630 is composed of a plurality of V-shaped bending parts connected end to end. The bending direction of the bending part is the axial direction of the cylinder body 2. The contact block 62 slides on the guide track 630. When the contact block 62 slides to the position where the bending part of the guide track 630 bends to the right, the contact block 62 moves to the right, and vice versa. In this way, the rotating contact block 62 will be continuously squeezed by the V-shaped bending parts in the guide track 630 to move left and right along the axial direction of the cylinder body 2, so that the dual squeezing functions of rotary rolling and moving extrusion can be synchronously realized only by driving the drive motor 55.

[0035] As Figure 3 and Figure 6As shown, the linear drive group 6 further includes two sets of front and rear opposite support plates 65 connected to the inner side of the cylinder body 2. Cylinders 66 are installed on both sets of support plates 65. The telescopic rods of the two cylinders 66 are jointly connected to the extrusion ring 63. The extrusion ring 63 has a slide rod 64 that slides on the cylinder body 2. The extrusion ring 63 is slidably arranged on the cylinder body 2 in a manner of sliding along the axial direction of the cylinder body 2. At the initial pressing stage, the distance that the extrusion cone 4 moves to the right is reduced, so that there is more extrusion space for the tea seeds to flow. As the pressing time and degree increase, the distance that the extrusion cone 4 moves to the right can be increased, so as to more fully press the tea seeds in the extrusion space and gradually press the tea seeds; for the adjustment of the rightward movement distance of the extrusion frame, it is necessary to control the cylinder 66 to drive the extrusion ring 63 to move. Since the drive motor 55 is in the off state, when the extrusion ring 63 moves to the left, it will squeeze and move the contact block 62 to the left through the guide rail 630. The contact block 62 will drive the extrusion cone 4 to move to the left through the transmission rod 61. Also, since the overall position of the guide rail 630 has moved to the left, the subsequent distance that the contact block 62 moves to the right after being squeezed will be reduced when it slides along the guide rail 630 in a turnover manner. Similarly, when the extrusion ring 63 moves to the right, the distance that the extrusion cone 4 moves to the right can be increased.

[0036] As Figure 3 and Figure 7 shown, it further includes a scraping ring 22 connected to the cylinder body 2. The scraping ring 22 is in contact and cooperation with the outer side of the extrusion cone 4. When the extrusion cone 4 moves to the left, the scraping ring 22 can scrape off the slag on the edge of the extrusion cone 4, facilitating the material slag to fall from the lower part of the cylinder body 2 to the oil slag separator. The middle part of the pressure-bearing disc 3 is recessed in the direction away from the extrusion cone 4, and the middle part of the extrusion cone 4 is convex in the direction close to the pressure-bearing disc 3. The convex part of the extrusion cone 4 is adapted to the recessed part of the pressure-bearing disc 3, so as to increase the area for pressing the tea seeds.

[0037] As Figure 3 and Figure 8As shown, the oil residue separation mechanism 7 includes a material pipe 71 connected to the lower part of the frame 1. There is a blanking channel 72 with an internal control valve communicating between the upper right side of the material pipe 71 and the extrusion space of the cylinder body 2. When the control valve in the blanking channel 72 is opened, the slag in the extrusion space of the cylinder body 2 can fall into the material pipe 71 through the blanking channel 72. A spiral auger 73 is rotatably mounted on the material pipe 71 and is adapted to rotate to convey the slag from right to left. The driving motor 55 is a double-shaft motor. One output shaft of the driving motor 55 is connected to the turntable 52, and there is a synchronous belt group 74 drivingly connected between the other output shaft of the driving motor 55 and the left end of the spiral auger 73. Therefore, when controlling the driving motor 55 to drive the turntable 52 to rotate, the driving motor 55 can also drive the synchronous belt group 74 to drive the spiral auger 73 to rotate. The lower left side of the left end of the material pipe 71 is communicated with a slag discharge pipe 76 and an oil discharge pipe 75 located between the slag discharge pipe 76 and the blanking channel 72. There is a filter screen (for the sake of simplifying the view, the filter screen is not drawn, but those skilled in the art can easily understand and implement this technical solution) between the upper part of the oil discharge pipe 75 and the material pipe 71. Both the oil discharge pipe 75 and the slag discharge pipe 76 are internally provided with opening and closing valves. As the spiral auger 73 continuously conveys the slag to the left, the slag will be continuously squeezed to the left end of the material pipe 71. Opening the oil discharge pipe 75 can discharge the oil. If it is necessary to discharge the slag, the slag discharge pipe 76 is opened.

[0038] As Figure 8 and Figure 9 shown, the control valve includes a baffle plate 721 slidably mounted in the blanking channel 72 and blocking the blanking channel 72. A communication port 7210 is opened on the baffle plate 721 and is adapted to allow the slag to pass through the blanking channel 72. Initially, the communication port 7210 on the baffle plate 721 is offset from the blanking port of the blanking channel 72. Shifting the baffle plate 721 to the right so that the communication port 7210 on it corresponds to the blanking port of the blanking channel 72 can allow the slag to flow through. A guide rod 722 is connected to one side of the cylinder body 2. A slide plate 723 connected to the baffle plate 721 is slidably mounted on the guide rod 722. A tension spring 724 surrounding the guide rod 722 is connected between the slide plate 723 and the cylinder body 2. After the tea seeds in the extrusion space of the cylinder body 2 are pressed, when it is necessary to discharge the slag into the material pipe 71, the baffle plate 721 is shifted to the right by driving the slide plate 723, so that the slag in the cylinder body 2 can be discharged into the material pipe 71. Releasing the slide plate 723, the slide plate 723 will drive the baffle plate 721 to move to the left under the action of the tension spring 724, thereby automatically closing the baffle plate 721.

[0039] As Figure 8 and Figure 9As shown in the figure, it further includes a contact ball 725 rotatably arranged on the upper left side of the slide plate 723. The middle part of the extrusion cone 4 has a cylindrical part 40 movably penetrating through the cylinder body 2. A contact disc 8 located to the left of the contact ball 725 is connected to the cylindrical part 40. When the extrusion cone 4 moves to the right, it will drive the contact disc 8 to move to the right through the cylindrical part 40. The contact disc 8 is adapted to press against the contact ball 725. When initially pressing the tea seeds, when the extrusion ring 63 moves to the left and reduces the distance of the rightward movement of the extrusion cone 4, the rightward movement of the extrusion cone 4 at this time will not cause the contact disc 8 to move to the right and directly contact the contact ball 725. However, in the later stage of tea seed pressing, when the extrusion ring 63 moves to the right and increases the distance of the rightward movement of the extrusion cone 4, the rightward movement of the extrusion cone 4 at this time can cause the contact disc 8 to move to the right and contact the contact ball 725. The contact ball 725 is stressed and will drive the baffle 721 to move to the right through the slide plate 723 to open the blanking channel 72. Thus, with the left and right reciprocating movement of the extrusion cone 4, the operation of automatically and intermittently blanking through the blanking channel 72 is realized, avoiding blockage. Each step is interrelated and coordinated with each other.

[0040] A tea seed pressing method according to the above tea seed pressing device, comprising: S1) Open the cylinder door 21, add tea seeds into the cylinder body 2, the tea seeds fall between the extrusion cone 4 and the pressure-bearing disc 3, and close the cylinder door 21; S2) Drive the extrusion cone 4 to perform double pressing on the tea seeds on the pressure-bearing disc 3 in a manner of rotational rolling and moving extrusion; S3) The scraper 41 adaptively stirs and disperses the tea seeds between the extrusion cone 4 and the pressure-bearing disc 3 as the extrusion cone 4 rotates and moves; S4) Finally, the slag in the cylinder body 2 is separated into tea oil and tea seed residue by the oil-slag separation mechanism 7.

[0041] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all the embodiments. It only expresses the preferred implementation manners of the present invention, and the description is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the present invention patent.

[0042] It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations, quantity increases or decreases, improvements and substitutions can be made. Therefore, based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present invention.

Claims

1. A tea seed pressing device for camellia oleifera processing, comprising a machine frame (1), a cylinder body (2) connected to the machine frame (1), and a cylinder door (21) provided at the first end of the cylinder body (2), wherein an oil residue separation mechanism (7) communicating with the cylinder body (2) is provided on the machine frame (1); characterized in that, The invention also comprises: a pressure plate (3) is connected to the inner side of the first end of the cylinder (2); an extrusion cone (4) is movable between the first end and the second end of the cylinder (2) and is located inside the cylinder (2); an extrusion space is formed between the extrusion cone (4) and the pressure plate (3) inside the cylinder (2); the extrusion cone (4) is driven to rotate by a rotary drive group (5); the rotary drive group (5) is arranged on the cylinder (2); the extrusion cone (4) is driven to move by a linear drive group (6); the linear drive group (6) is arranged on the cylinder (2); a scraper (41) is slidably disposed on the extrusion cone (4) and is located in the extrusion space and is suitable for contacting and cooperating with the pressure plate (3); a compression spring (42) is connected between the scraper (41) and the extrusion cone (4).

2. The tea seed pressing device for camellia oleifera processing according to claim 1, characterized in that, The rotary drive group (5) comprises a bracket (51) connected to the second end of the cylinder (2) and a turntable (52) rotatably arranged on the bracket (51); a transmission group is provided between the turntable (52) and the extrusion cone (4); the transmission group is composed of a first connecting rod (53) rotatably arranged on the turntable (52) and a second connecting rod (54) rotatably arranged on the extrusion cone (4); the first connecting rod (53) and the second connecting rod (54) in the transmission group are hingedly matched; a driving motor (55) is installed at the second end of the cylinder (2); an output shaft of the driving motor (55) is connected to the turntable (52).

3. The tea seed pressing device for camellia oleifera processing according to claim 2, wherein, The linear drive group (6) comprises a transmission rod (61) connected to the extrusion cone (4), the end of the transmission rod (61) is connected to a resistance block (62), the cylinder (2) is provided with an extrusion ring (63), the extrusion ring (63) is provided with a guide track (630), the guide track (630) is composed of a plurality of bent parts connected end to end, the bending direction of the bent parts is the axial direction of the cylinder (2), and the resistance block (62) slides on the guide track (630).

4. The tea seed pressing device for camellia oleifera processing according to claim 3, wherein, The linear drive group (6) further comprises a support plate (65) connected to the inner side of the cylinder (2), a cylinder (66) being mounted on the support plate (65), a telescopic rod of the cylinder (66) being connected to the extrusion ring (63), and the extrusion ring (63) having a sliding rod (64) sliding on the cylinder (2).

5. A tea seed pressing device for camellia oleifera processing according to claim 1, characterized in that, It also includes a scraper ring (22) connected to the cylinder (2), the scraper ring (22) contacts and cooperates with the outer side of the extrusion cone (4), the middle part of the pressure plate (3) is recessed in a direction away from the extrusion cone (4), the middle part of the extrusion cone (4) is protruding in a direction close to the pressure plate (3), and the protruding part of the extrusion cone (4) is adapted to the recessed part of the pressure plate (3).

6. The tea seed pressing device for camellia oleifera processing according to claim 3, wherein The oil-residue separation mechanism (7) comprises a material pipe (71) connected to the frame (1); a material discharge channel (72) with a built-in control valve is connected between the material pipe (71) and the extrusion space of the barrel (2); a spiral auger (73) is rotatable on the material pipe (71); the drive motor (55) is a double-shaft motor; one of the output shafts of the drive motor (55) is connected to the turntable (52); a synchronous belt group (74) is transmitted between the other output shaft of the drive motor (55) and the spiral auger (73); a slag discharge pipe (76) and an oil discharge pipe (75) located between the slag discharge pipe (76) and the material discharge channel (72) are connected at the lower side of the material pipe (71); a filter screen is provided between the oil discharge pipe (75) and the material pipe (71); and both the oil discharge pipe (75) and the slag discharge pipe (76) are built-in with an on-off valve.

7. The tea seed pressing device for camellia oleifera processing according to claim 6, wherein, The control valve comprises a baffle plate (721) which slides on the material discharge channel (72) and blocks the material discharge channel (72); a connecting port (7210) is formed on the baffle plate (721); a guide rod (722) is connected to one side of the cylinder (2); a slide plate (723) connected to the baffle plate (721) slides on the guide rod (722); a tension spring (724) is connected between the slide plate (723) and the cylinder (2).

8. A tea seed pressing device for oil-tea camellia processing according to claim 7, characterized in that, It also includes a resistance ball (725) rotatably arranged on the slide plate (723), the middle part of the extrusion cone (4) has a cylindrical portion (40) that movably penetrates the cylinder (2), and the cylindrical portion (40) is connected to a resistance disk (8), and the resistance disk (8) is suitable for extruding the resistance ball (725).

9. A tea seed pressing method of the tea seed pressing device according to claim 1, characterized in that, Included are: S1) opening the cylinder door (21), adding tea seeds into the cylinder body (2), causing the tea seeds to fall between the extrusion cone (4) and the pressure plate (3), and closing the cylinder door (21); S2) driving the squeezing cone (4) to perform double squeezing on the tea seeds on the pressure plate (3) by means of rotational rolling and movement squeezing; S3) the scraper (41) adaptively stirs and disperses the tea seeds between the extrusion cone (4) and the pressure plate (3) as the extrusion cone (4) rotates and moves; S4) The residue in the cylinder (2) is finally separated into tea oil and tea seed residue by the oil-residue separation mechanism (7).

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