Tea leaf screening machine screen tension adjustable structure
Patent Information
- Application Number
- CN202522111985.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-09-30
AI Technical Summary
[0004]针对上述技术问题，本申请解决了现有技术中，筛网张紧度不可调，筛分精度受限的问题
[0017]1.本实用新型中，筛网采用纵向第一弹力绳与横向第二弹力绳编织成型，第一弹力绳通过拉杆与第二电动伸缩杆连接(对应三级筛选腔)，第二弹力绳通过拉杆与第一电动伸缩杆连接，可独立调节三级筛网的纵向、横向张紧度。根据茶叶粒径(如细茶、中茶、粗茶)或种类(如绿茶、红茶)，灵活调整单级或多级筛网的松紧程度。避免因张紧度固定导致的“过松漏筛”、“过紧堵塞”问题，确保筛孔尺寸稳定，茶叶与筛网充分接触且筛选过程可控。不同特性茶叶的筛分精度提升15％-20％，减少漏筛、堵孔现象，降低后续二次筛分的工作量。
Smart Images
Figure CN224894774U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tea processing equipment, specifically to an adjustable screen tension structure for a tea sieving machine. Background Technology
[0002] Traditional tea sieving machines typically use fixed screens, and the tension cannot be adjusted according to the characteristics of the tea leaves (such as particle size and leaf hardness). If the tension is too loose, the screen holes are prone to deformation due to the weight of the tea leaves, resulting in large-diameter tea leaves passing through the screen. If the tension is too tight, the screen is too rigid, and small-diameter tea leaves are prone to getting stuck between the screen holes, causing blockage and ultimately reducing the sieving accuracy.
[0003] Most traditional screening machines have only a single-stage screening structure, which cannot grade tea leaves in one go. Multiple screenings are required to meet processing needs, resulting in low efficiency. At the same time, tea leaves in the collection chamber after screening are prone to remain due to the lack of an auxiliary discharge structure, requiring manual cleaning, which further increases processing costs and time. Utility Model Content
[0004] To address the aforementioned technical problems, this application solves the problem in the prior art where the screen tension is not adjustable, resulting in limited screening accuracy.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a tea sieving machine with adjustable screen tension structure, including a mounting base, a shaking mechanism is provided on the upper surface of the mounting base, a feeding channel is provided on the top of the shaking mechanism, a discharge channel is provided on the side of the shaking mechanism, and a screen is provided on the internal channel between the feeding channel and the discharge channel of the shaking mechanism.
[0006] To better realize this utility model, the mounting base further includes a base plate, and the upper surface of the base plate is provided with a mounting housing and a blower base. The top of the mounting housing near the blower base is provided with an air inlet channel, which has a first air inlet channel and a second air inlet channel. The top of the mounting housing away from the blower base is provided with a vibration relief window. The end of the air inlet channel away from the blower base has three first air outlet channels that are connected to the first air inlet channel. The output end of the second air inlet channel is connected to the interior of the mounting housing. The bottom surface inside the mounting housing is provided with a pair of support plates. The inner wall of the mounting housing near the blower base is provided with a motor base. The inner wall of the mounting housing away from the blower base is provided with an annular groove.
[0007] To better realize this utility model, the shaking mechanism further includes a shaking body, a driving channel on the shaking body, a pair of vertical guide channels on the bottom surface of the shaking body, a shaking neck on the top surface of the shaking body, and a filtering structure on the top surface of the shaking neck. The filtering structure is located above the shaking retraction window. The filtering structure includes a first filtering collection cavity, a second filtering collection cavity, and a third filtering collection cavity. The top of the first filtering collection cavity, the second filtering collection cavity, and the third filtering collection cavity has a filtering inlet. The side outlets of the collection chamber, the second screening collection chamber, and the third screening collection chamber are respectively connected to a discharge channel. The first screening collection chamber has a third air inlet on the wall near the blower base, the second screening collection chamber has a second air inlet on the wall near the blower base, and the third screening collection chamber has a first air inlet on the wall near the blower base. The first air inlet, the second air inlet, and the third air inlet are all connected to a first air outlet channel through a connecting channel made of a retractable and flexible material.
[0008] To better realize this utility model, a motor is further provided on the motor base, the output end of the motor is fixedly connected to the transition shaft through a coupling, the end of the transition shaft is fixedly connected to one end of the rotating arm, the other end of the rotating arm is fixedly connected to a drive rod, and the transition shaft is arranged perpendicular to the rotating arm, the transition shaft is parallel to the drive rod, and the rotating arm is arranged perpendicular to the drive rod.
[0009] The drive rod is placed inside the drive channel, and the outer peripheral wall of the drive rod is tangent to the inner peripheral wall of the drive channel. The end of the drive rod is placed inside the annular groove.
[0010] To better realize this utility model, the shaking mechanism further includes a support frame, with two horizontal slide rods respectively provided on the left and right end faces of the support frame. All the horizontal slide rods are slidably connected to a through hole opened on a corresponding support plate. The top center of the support frame has a relief notch. Two vertical slide rods are vertically arranged inside the support frame. Each vertical slide rod is slidably sleeved inside the vertical guide channel. The shaking neck extends vertically upward out of the relief notch.
[0011] To better realize this utility model, the feeding channel is further provided at the top of the screening structure;
[0012] The screen includes several longitudinally arranged first elastic ropes and several transversely arranged second elastic ropes woven together with the first elastic ropes. One end of each first elastic rope is fixedly connected to the inner wall of the feeding channel near the blower base, and the other end of each first elastic rope extends out of the feeding channel. The other ends of several first elastic ropes located above the first screening and collection chamber are fixedly connected to a first pull rod. The other ends of several first elastic ropes located above the second screening and collection chamber are fixedly connected to a second pull rod. The other ends of several first elastic ropes located above the third screening and collection chamber are fixedly connected to a third pull rod. Three second support frames are provided on the outer wall of the feeding channel away from the blower base. Each second support frame is provided with a second electric telescopic rod. The telescopic ends of the three second electric telescopic rods are respectively fixedly connected to the middle of the first pull rod, the middle of the second pull rod, and the middle of the third pull rod.
[0013] The two ends of the second elastic rope extend from the two end faces of the screening structure respectively, and each end of the second elastic rope is fixedly connected to the fourth pull rod. A first support frame is provided on each end face of the screening structure. A first electric telescopic rod is provided on the first support frame. The telescopic end of the first electric telescopic rod is fixedly connected to the middle of the fourth pull rod.
[0014] In this system, the first elastic rope and the second elastic rope located above the first screening and collection chamber together form a first screen; the first elastic rope and the second elastic rope located above the second screening and collection chamber together form a second screen; and the first elastic rope and the second elastic rope located above the third screening and collection chamber together form a third screen. The distance between two adjacent first elastic ropes located above the first screening and collection chamber is greater than the distance between two adjacent first elastic ropes located above the second screening and collection chamber, and the distance between two adjacent first elastic ropes located above the second screening and collection chamber is greater than the distance between two adjacent first elastic ropes located above the third screening and collection chamber.
[0015] To better realize this utility model, a blower is further provided on the blower base, and the output end of the blower is connected to the first air inlet channel and the second air inlet channel.
[0016] The technical solution provided by this utility model has the following advantages compared with the prior art:
[0017] 1. In this utility model, the screen is woven from a longitudinal first elastic rope and a transverse second elastic rope. The first elastic rope is connected to a second electric telescopic rod via a pull rod (corresponding to the three-stage screening chamber), and the second elastic rope is connected to the first electric telescopic rod via a pull rod. The longitudinal and transverse tension of the three-stage screen can be independently adjusted. The tension of single or multiple stages of the screen can be flexibly adjusted according to the tea particle size (e.g., fine tea, medium tea, coarse tea) or type (e.g., green tea, black tea). This avoids the problems of "too loose for screening" and "too tight for clogging" caused by fixed tension, ensuring stable screen aperture size, full contact between tea leaves and the screen, and controllable screening process. The screening accuracy of teas with different characteristics is improved by 15%-20%, reducing screening errors and clogging, and reducing the workload of subsequent secondary screening.
[0018] 2. In this utility model, the screening structure includes a first, second, and third screening and collection chamber. The spacing between the first elastic ropes of the screens above each chamber decreases sequentially (first screening chamber > second screening chamber > third screening chamber), and each chamber corresponds to an independent discharge channel. This allows for one-time grading and screening of tea leaves according to particle size from largest to smallest, with tea leaves of different sizes entering their respective collection chambers. It replaces the traditional single-stage screening mode, eliminating multiple screening steps and preventing the mixing of tea leaves of different sizes, thus simplifying subsequent processing. Tea screening efficiency is increased by more than 30%, meeting the diverse needs of tea grading, packaging, and deep processing.
[0019] 3. In this invention, the shaking mechanism is driven by a motor to rotate the rotating arm and drive rod, in conjunction with a horizontal slide bar (limiting lateral displacement) and a vertical slide bar (limiting vertical displacement), driving the screening structure to achieve multi-dimensional shaking in all directions (up and down, left and right). This ensures that the tea leaves falling into the feed channel are fully dispersed on the screen, avoiding local accumulation. It increases the contact area between the tea leaves and the screen, accelerating the passage of small-diameter tea leaves through the screen holes and reducing tea leaf retention on the screen surface and screen hole clogging. The screen clogging rate is reduced by 25%, the screening process is more uniform, and there are no localized missed areas.
[0020] 4. In this utility model, the blower output air enters the mounting housing through the second air inlet channel to dissipate heat from the motor, and then enters the three screening and collection chambers through the first air inlet channel and a flexible connecting channel. The flexible connecting channel adapts to the displacement of the shaking mechanism to prevent the air duct from falling off. This achieves the dual functions of motor cooling and tea leaf discharge assistance. It cools the motor to prevent overheating damage during prolonged operation; at the same time, it blows the tea leaves in the collection chambers into the discharge channel quickly, avoiding residue. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;
[0023] Figure 2 for Figure 1 A sectional view;
[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0025] Figure 4 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;
[0026] Figure 5 for Figure 4 Enlarged view at point B in the middle;
[0027] Figure 6 This is a schematic diagram of the mounting base.
[0028] Figure 7 for Figure 6 A sectional view;
[0029] Figure 8 Schematic diagram of the structure of the shaking body Figure 1 ;
[0030] Figure 9 Schematic diagram of the structure of the shaking body Figure 2 ;
[0031] Figure 10 A schematic diagram showing the interaction between the shaking body, support frame, screening structure, and screen.
[0032] Figure 11 This is a schematic diagram showing the interaction between the vibration body, drive rod, and motor.
[0033] Figure 12 This is a schematic diagram of the support frame structure;
[0034] Figure 13 A cross-sectional view showing the coordination of the vibration mechanism, the feeding channel, and the discharging channel;
[0035] Figure 14 This is a schematic diagram of the sieve structure.
[0036] Explanation of reference numerals in the attached drawings: 100-Mounting base; 200-Vibration mechanism; 300-Feeding channel; 400-Discharge channel; 500-Screen; 600-Blower; 101-Base plate; 102-Mounting housing; 103-Blower base; 104-Air inlet channel; 105-First air inlet channel; 106-Second air inlet channel; 107-First air outlet channel; 108-Support plate; 109-Motor base; 110-Annular groove; 111-Vibration relief window; 201-Vibration body; 202-Drive channel; 203-Vertical guide channel; 204-Vibration neck ; 205-Screening structure; 206-First screening and collection chamber; 207-Second screening and collection chamber; 208-Third screening and collection chamber; 209-First air inlet; 210-Second air inlet; 211-Third air inlet; 212-Drive rod; 213-Support frame; 214-Horizontal slide rod; 215-Vertical slide rod; 216-Motor; 217-Coupling; 218-Rotating arm; 501-First elastic rope; 502-Second elastic rope; 503-First electric telescopic rod; 504-First support frame; 505-Second electric telescopic rod; 506-Second support frame. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0038] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0040] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0041] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.
[0042] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0043] Example 1
[0044] Example 1
[0045] like Figures 1 to 14 As shown, a tea sieving machine with adjustable screen tension structure includes a mounting base 100. A shaking mechanism 200 is provided on the upper surface of the mounting base 100. A feeding channel 300 is provided on the top of the shaking mechanism 200, and a discharge channel 400 is provided on the side of the shaking mechanism 200. A screen 500 is provided on the internal channel between the feeding channel 300 and the discharge channel 400 of the shaking mechanism 200.
[0046] like Figures 1 to 14As shown, in this embodiment, the mounting base 100 includes a base plate 101. A mounting housing 102 and a blower base 103 are disposed on the upper surface of the base plate 101. An air inlet channel 104 is provided on the top of the mounting housing 102 near the blower base 103. The air inlet channel 104 has a first air inlet channel 105 and a second air inlet channel 106. A vibration relief window 111 is provided on the top of the mounting housing 102 away from the blower base 103. The air inlet channel 104 is further away from the blower base 103. Three first air outlet channels 107 are provided at the end of the blower base 103 and are connected to the first air inlet channel 105. The output end of the second air inlet channel 106 is connected to the interior of the mounting housing 102. A pair of support plates 108 are provided on the bottom surface inside the mounting housing 102. A motor base 109 is provided on the inner wall of the mounting housing 102 near the blower base 103. An annular groove 110 is provided on the inner wall of the mounting housing 102 away from the blower base 103.
[0047] like Figures 1 to 14 As shown, in this embodiment, the shaking mechanism 200 includes a shaking body 201. A drive channel 202 is provided on the shaking body 201. A pair of vertical guide channels 203 are provided on the bottom surface of the shaking body 201. The top surface of the shaking body 201 has a shaking neck 204. A screening structure 205 is provided on the top surface of the shaking neck 204. The screening structure 205 is located above the shaking retreat window 111 (there is sufficient space between the screening structure 205 and the shaking retreat window 111 to facilitate the shaking of the shaking mechanism 200 in the up, down, left, and right directions). The screening structure 205 includes a first screening collection cavity 206, a second screening collection cavity 207, and a third screening collection cavity 208. The first screening collection cavity 206, the second screening collection cavity 207, and the third screening collection cavity 208... The top of the screening collection chamber 208 has a screening inlet. The side outlets of the first screening collection chamber 206, the second screening collection chamber 207, and the third screening collection chamber 208 are respectively connected to a discharge channel 400. The first screening collection chamber 206 has a third air inlet 211 on the wall near the blower base 103. The second screening collection chamber 207 has a second air inlet 210 on the wall near the blower base 103. The third screening collection chamber 208 has a first air inlet 209 on the wall near the blower base 103. The first air inlet 209, the second air inlet 210, and the third air inlet 211 are all connected to a first air outlet channel 107 through a connecting channel made of a retractable and flexible material (e.g., food-grade rubber).
[0048] like Figures 1 to 14As shown, in this embodiment, a motor 216 is provided on the motor base 109. The output end of the motor 216 is fixedly connected to the transition shaft through a coupling 217. The end of the transition shaft is fixedly connected to one end of the rotating arm 218. The other end of the rotating arm 218 is fixedly connected to a drive rod 212. The transition shaft is arranged perpendicular to the rotating arm 218, the transition shaft is parallel to the drive rod 212, and the rotating arm 218 is arranged perpendicular to the drive rod 212.
[0049] The drive rod 212 is placed inside the drive channel 202, and the outer peripheral wall of the drive rod 212 is tangent to the inner peripheral wall of the drive channel 202. The end of the drive rod 212 is placed inside the annular groove 110.
[0050] like Figures 1 to 14 As shown, in this embodiment, the shaking mechanism 200 further includes a support frame 213. Two horizontal slide rods 214 are respectively provided on the left and right end faces of the support frame 213. All the horizontal slide rods 214 are slidably connected to the corresponding through holes on the support plate 108. The top middle position of the support frame 213 has a relief notch. Two vertical slide rods 215 are vertically arranged inside the support frame 213. Each vertical slide rod 215 is slidably sleeved inside the vertical guide channel 203. The shaking neck 204 extends vertically upward out of the relief notch (the relief notch has sufficient width to facilitate the shaking of the shaking mechanism 200 in the up, down, left, and right directions).
[0051] like Figures 1 to 14 As shown, in this embodiment, the feeding channel 300 is connected to the top of the screening structure 205;
[0052] The screen 500 includes a plurality of longitudinally arranged first elastic ropes 501 and a plurality of transversely arranged second elastic ropes 502 woven together with the first elastic ropes 501. One end of each first elastic rope 501 is fixedly connected to the inner wall surface of the feed channel 300 near the blower base 103, and the other end of each first elastic rope 501 extends out of the feed channel 300. The other ends of the plurality of first elastic ropes 501 located above the first screening and collecting chamber 206 are jointly fixedly connected to a first pull rod. The plurality of first elastic ropes 502 located above the second screening and collecting chamber 207 are also fixedly connected to a first pull rod. The other ends of the first elastic ropes 501 are fixedly connected to the second pull rod. The other ends of the multiple first elastic ropes 501 located above the third screening and collecting chamber 208 are fixedly connected to the third pull rod. Three second support frames 506 are provided on the outer wall of the feeding channel 300 away from the blower base 103. Each second support frame 506 is provided with a second electric telescopic rod 505. The telescopic ends of the three second electric telescopic rods 505 are respectively fixedly connected to the middle of the first pull rod, the middle of the second pull rod, and the middle of the third pull rod.
[0053] The two ends of the second elastic rope 502 extend from the two end faces of the screening structure 205 respectively, and each end of the second elastic rope 502 is fixedly connected to the fourth pull rod. Each end face of the screening structure 205 is provided with a first support frame 504, and each first support frame 504 is provided with a first electric telescopic rod 503. The telescopic end of the first electric telescopic rod 503 is fixedly connected to the middle of the fourth pull rod.
[0054] Specifically, the first elastic rope 501 and the second elastic rope 502 located above the first screening and collection chamber 206 together form a first screen; the first elastic rope 501 and the second elastic rope 502 located above the second screening and collection chamber 207 together form a second screen; and the first elastic rope 501 and the second elastic rope 502 located above the third screening and collection chamber 208 together form a third screen. The distance between two adjacent first elastic ropes 501 located above the first screening and collection chamber 206 is greater than the distance between two adjacent first elastic ropes 501 located above the second screening and collection chamber 207, and the distance between two adjacent first elastic ropes 501 located above the second screening and collection chamber 207 is greater than the distance between two adjacent first elastic ropes 501 located above the third screening and collection chamber 208.
[0055] like Figures 1 to 14 As shown in this embodiment, a blower 600 is provided on the blower base 103, and the output end of the blower 600 is connected to the first air inlet channel 105 and the second air inlet channel 106.
[0056] The spacing between the two adjacent first elastic ropes above the first screening and collection chamber, the spacing between the two adjacent first elastic ropes above the second screening and collection chamber, and the spacing between the two adjacent first elastic ropes above the third screening and collection chamber can all be set according to the actual situation.
[0057] Working principle:
[0058] By adjusting the two first electric telescopic rods 503 and the multiple second electric telescopic rods 505, the tension of the first screen, the second screen, and the third screen can be adjusted respectively. Simultaneously, since the first elastic rope 501 and the second elastic rope 502 located above the first air inlet 209 together form the third screen, the distance between two adjacent first elastic ropes 501 above the second screening and collection chamber 207 is greater than the distance between two adjacent first elastic ropes 501 above the third screening and collection chamber 208, and the distance between two adjacent first elastic ropes 501 above the third screening and collection chamber 208 is greater than the distance between two adjacent first elastic ropes 501 above the first air inlet 209. Under the action of the shaking mechanism 200, tea leaves of different sizes are dropped into the first screening and collection chamber 206, the second screening and collection chamber 207, and the third screening and collection chamber 208 respectively, and then blown by the blower 600 (according to actual conditions). In this case, any existing mature blower can be selected. Under the action of the blower, part of the air enters the second air inlet channel 106, and then enters the air inside the mounting housing 102 for heat dissipation of the motor 216. The dissipated air is finally discharged through the vibration relief window 111 (the mounting housing 102 has sufficient vibration space and gaps for the dissipation air to pass through). The other part of the air enters the first air inlet channel 105, and then is discharged through a first air outlet channel 107. The discharged air then enters the first air inlet 209, the second air inlet 210, and the third air inlet 211 through three connecting channels, and then enters the third screening and collection chamber 208, the second screening and collection chamber 207, and the first screening and collection chamber 206, respectively. Then, the tea leaves located in the first screening and collection chamber 206, the second screening and collection chamber 207, and the third screening and collection chamber 208 are blown into a discharge channel 400 and discharged.
[0059] The drive motor 216 causes the rotating arm 218 to rotate, which in turn drives the drive rod 212 to rotate. Under the guidance of the horizontal slide rod 214 and the vertical slide rod 215, the shaking body 201 moves up and down and left and right, thereby realizing the shaking of the screening structure 205.
[0060] It is worth noting that this utility model mainly addresses the technical problems in the background section. The specification clearly describes the targeted core technical means designed to solve the technical problem, and fully elaborates on the specific process by which the core technical means acts on the technical problem, as well as the logical link through which the core technical means ultimately produces innovative and beneficial effects, clearly presenting the correspondence between "technical problem - technical means - technical effect".
[0061] The following is a detailed explanation of the two scenarios in this embodiment that are unrelated to the core solution of this utility model:
[0062] 1. Other technical problems not intended to be solved by this utility model: Such technical problems are not included in the protection scope of this utility model, and the corresponding technical means belong to the category of existing mature technology. Those skilled in the art can directly obtain and apply the corresponding technical means to solve other technical problems not intended to be solved by this utility model based on common knowledge (such as conventional design methods commonly used in the industry) or published existing technical documents (such as authorized patents, technical manuals, academic papers, etc.). Whether or not this part is disclosed does not affect the full disclosure of the technical solution of this utility model itself.
[0063] 2. New technical problems arising during the application of the present utility model: If new technical problems arise during the application of the present utility model, and this application does not provide a targeted further optimization solution, it is assumed that those skilled in the art can directly solve the new technical problems arising during the application of the present utility model by selecting appropriate conventional technical means based on common knowledge or existing technical literature. There is no situation where the core technical solution of the present utility model cannot be implemented because the technical means for the derived problem are not mentioned in this application.
[0064] Regarding the performance and parameters of the parts involved in this utility model's technical solution, the specification has clearly defined their core functional requirements. Those skilled in the art, combining conventional specifications in mechanical design (such as GB / T series national standards), parts selection manuals (such as industry-standard hardware and transmission component parameter manuals), and conventional installation and debugging experience, can reasonably determine and debug the specific performance indicators and parameter values that meet the above functional requirements. This does not rely on "the special experience of the operator," and there is no problem of the technical solution being unachievable due to malfunctions caused by unclear part performance or parameters, or by special extreme limiting conditions.
[0065] The above description is merely a preferred embodiment of this application and is not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A structure for adjustable screen tension in a tea sieving machine, characterized in that: The device includes a mounting base (100), on the upper surface of which a shaking mechanism (200) is provided. A feeding channel (300) is provided on the top of the shaking mechanism (200), and a discharging channel (400) is provided on the side of the shaking mechanism (200). A screen (500) is provided on the internal channel of the shaking mechanism (200) located between the feeding channel (300) and the discharging channel (400). The mounting base (100) includes a base plate (101), and a mounting housing (102) and a blower base (103) are provided on the upper surface of the base plate (101). An air inlet channel (104) is provided on the top of the mounting housing (102) near the blower base (103). The air inlet channel (104) has a first air inlet channel (105) and a second air inlet channel (106). A vibration relief window (111) is provided on the top of the mounting housing (102) away from the blower base (103). The air inlet channel (104) is away from the blower base (103). The blower base (103) has three first air outlet channels (107) at one end of its side, which are connected to the first air inlet channel (105). The output end of the second air inlet channel (106) is connected to the interior of the mounting housing (102). A pair of support plates (108) are provided on the bottom surface inside the mounting housing (102). A motor base (109) is provided on the inner wall of the mounting housing (102) on the side close to the blower base (103). An annular groove (110) is provided on the inner wall of the mounting housing (102) on the side away from the blower base (103). The shaking mechanism (200) includes a shaking body (201), on which a driving channel (202) is provided. A pair of vertical guide channels (203) are provided on the bottom surface of the shaking body (201). The top surface of the shaking body (201) has a shaking neck (204), and the top surface of the shaking neck (204) is provided with a filtering structure (205). The filtering structure (205) is located above the shaking relief window (111). The filtering structure (205) includes a first filtering collection cavity (206), a second filtering collection cavity (207), and a third filtering collection cavity (208). The top of the first filtering collection cavity (206), the second filtering collection cavity (207), and the third filtering collection cavity (208) has a filtering inlet. 206), the side outlets of the second screening and collection chamber (207) and the third screening and collection chamber (208) are respectively connected to a discharge channel (400). The first screening and collection chamber (206) has a third air inlet (211) on the wall near the blower base (103). The second screening and collection chamber (207) has a second air inlet (210) on the wall near the blower base (103). The third screening and collection chamber (208) has a first air inlet (209) on the wall near the blower base (103). The first air inlet (209), the second air inlet (210) and the third air inlet (211) are all connected to a first air outlet channel (107) through a connecting channel made of a retractable and flexible material. The feeding channel (300) is connected to the top of the screening structure (205); The screen (500) includes a plurality of longitudinally arranged first elastic ropes (501) and a plurality of transversely arranged second elastic ropes (502) woven together with the first elastic ropes (501). One end of the first elastic rope (501) is fixedly connected to the inner wall surface of the feed channel (300) near the blower base (103), and the other end of the first elastic rope (501) extends out of the feed channel (300). The other ends of the plurality of first elastic ropes (501) located above the first screening and collection chamber (206) are jointly fixedly connected to the first pull rod, located on the second screening and collection chamber (207). The other ends of the multiple first elastic ropes (501) are fixedly connected to the second pull rod. The other ends of the multiple first elastic ropes (501) located above the third screening and collection chamber (208) are fixedly connected to the third pull rod. Three second support frames (506) are provided on the outer wall of the feed channel (300) away from the blower base (103). Each second support frame (506) is provided with a second electric telescopic rod (505). The telescopic ends of the three second electric telescopic rods (505) are respectively fixedly connected to the middle of the first pull rod, the middle of the second pull rod, and the middle of the third pull rod. The two ends of the second elastic rope (502) extend from the two end faces of the screening structure (205) respectively, and each end of the second elastic rope (502) is fixedly connected to the fourth pull rod. A first support frame (504) is provided on each end face of the screening structure (205). A first electric telescopic rod (503) is provided on the first support frame (504). The telescopic end of the first electric telescopic rod (503) is fixedly connected to the middle of the fourth pull rod. Among them, the first elastic rope (501) and the second elastic rope (502) located above the first screening and collection chamber (206) together form the first screen, the first elastic rope (501) and the second elastic rope (502) located above the second screening and collection chamber (207) together form the second screen, and the first elastic rope (501) and the second elastic rope (502) located above the third screening and collection chamber (208) together form the third screen. The distance between two adjacent first elastic ropes (501) located above the first screening and collection chamber (206) is greater than the distance between two adjacent first elastic ropes (501) located above the second screening and collection chamber (207), and the distance between two adjacent first elastic ropes (501) located above the second screening and collection chamber (207) is greater than the distance between two adjacent first elastic ropes (501) located above the third screening and collection chamber (208).
2. The adjustable screen tension structure of the tea sieving machine according to claim 1, characterized in that: A motor (216) is provided on the motor base (109). The output end of the motor (216) is fixedly connected to the transition shaft through a coupling (217). The end of the transition shaft is fixedly connected to one end of the rotating arm (218). The other end of the rotating arm (218) is fixedly connected to a drive rod (212). The transition shaft is arranged perpendicular to the rotating arm (218), the transition shaft is parallel to the drive rod (212), and the rotating arm (218) is arranged perpendicular to the drive rod (212). The drive rod (212) is placed inside the drive channel (202), and the outer peripheral wall of the drive rod (212) is tangent to the inner peripheral wall of the drive channel (202). The end of the drive rod (212) is placed inside the annular groove (110).
3. The adjustable screen tension structure of the tea sieving machine according to claim 2, characterized in that: The shaking mechanism (200) also includes a support frame (213). Two horizontal slide rods (214) are respectively provided on the left and right end faces of the support frame (213). All the horizontal slide rods (214) are slidably connected to the through holes opened on the corresponding support plate (108). The support frame (213) has a relief notch at the top center. Two vertical slide rods (215) are vertically arranged inside the support frame (213). Each vertical slide rod (215) is slidably sleeved inside the vertical guide channel (203). The shaking neck (204) extends vertically upward out of the relief notch.
4. The adjustable screen tension structure of the tea sieving machine according to claim 1, characterized in that: A blower (600) is provided on the blower base (103), and the output end of the blower (600) is connected to the first air inlet channel (105) and the second air inlet channel (106).