Multistage screening machine material diversion v-shaped guide plate linkage device

Abstract

The utility model relates to multistage screening machine material shunting's V type flow guide plate linkage device, including the casing. The casing is hollowly arranged and is provided with the first flow guide plate in the casing. A plurality of screen holes are arranged on the first flow guide plate. The first flow guide plate is detachably connected with the base. The vertical lower end of the base is connected with the vibration assembly. A plurality of flow guide screens are further arranged on the first flow guide plate. The flow guide screen is arranged in V type on the plane of the first flow guide plate in the mode of towards the vertical lowest point of the first flow guide plate. A plurality of screen teeth are further arranged on the flow guide screen. The utility model sets up the first flow guide plate with screen hole in the casing, realizes the preliminary screening to the material, makes the material that meets the screen hole size to fall, completes the basic separation. The V type setting of flow guide screen can avoid the accumulation of tea in the screening process, makes the tea that rolls on the first flow guide plate separate and distribute evenly through the carding and flow guiding effect of flow guide screen, improves the screening utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of tea diversion and screening technology, and in particular to a V-shaped guide plate linkage device for material diversion in a multi-stage screening machine. Background Technology

[0002] As an agricultural product with both drinking and economic value, tea's quality grading directly determines its market positioning and price. Different grades of tea, such as buds, first-grade leaves, and broken leaves, differ significantly in taste, flavor, and commercial value. Therefore, efficient and precise sieving is one of the core requirements in tea processing. Currently, the mainstream sieving equipment in tea processing mainly includes flat vibrating screens, drum screens, and simple manual sieving devices. However, these devices are insufficient to meet the sieving requirements of high-quality tea. Specific problems include:

[0003] The contradiction between screening efficiency and accuracy is prominent: Traditional flat vibrating screens use a single flat screen structure. Tea leaves are prone to "bridging" on the screen surface due to their fluffy nature (that is, the tea leaves are suspended above the screen holes and cannot fall effectively), resulting in low screening efficiency. At the same time, the low efficiency of the flat screen results in poor tea flowability.

[0004] Material diversion and movement path disorder: The feeding structure of existing equipment is mostly cylindrical or single inclined. When tea leaves fall, they are prone to eccentricity due to their light weight and easy bounce (such as concentrated accumulation on one side of the screen surface), resulting in local tea leaf accumulation. The buds in the accumulation area are deformed by pressure, and the screen surface utilization rate in the sparse area is insufficient. Although some drum screeners realize the movement of tea leaves by rotation, there is no directional flow guidance structure on the inner wall of the drum. The tea leaves tumble randomly in the drum, which easily leads to "missed screening" (such as buds falling into the next collection chamber with the leaves) or "over-screening" (such as leaves being over-screened and broken), further reducing the accuracy of grading.

[0005] In summary, the current tea sieving equipment suffers from deficiencies in efficiency, precision, quality assurance, and adaptability to various tea varieties, which have become key bottlenecks restricting the processing of high-quality tea. There is an urgent need for a sieving device that can accurately adapt to the characteristics of tea, achieve efficient grading, ensure the integrity and cleanliness of tea, and is easy to maintain, in order to solve the pain points of existing technologies.

[0006] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a V-shaped guide plate linkage device for material diversion in a multi-stage screening machine, including a housing. The housing is hollow, and a first guide plate is disposed inside the housing. A plurality of screen holes are arranged on the first guide plate. A base is detachably connected to the lower vertical section of the first guide plate. A vibration component is connected to the lower vertical end of the base. A plurality of guide screens are also disposed on the first guide plate. The guide screens are V-shaped on the plane of the first guide plate, facing the lowest vertical point of the first guide plate. The guide screens are also provided with a plurality of screen teeth arranged at intervals along the extension direction of the guide screen and perpendicular to the first guide plate.

[0008] According to a preferred embodiment, the first guide plate is V-shaped. A guide screen contacts the vertical surface of the first guide plate. A baffle is provided along the circumferential edge of the first guide plate. A plurality of guide screens are arranged within the space enclosed by the baffles.

[0009] According to a preferred embodiment, a plurality of flow guide screens are arranged symmetrically about the axis of the first flow guide plate.

[0010] According to a preferred embodiment, at least two support plates for supporting the base are further provided inside the main body. The support plates are fixedly connected to the interior of the main body. A first connecting rod and a second connecting rod are nested between the support plates and the base.

[0011] According to a preferred embodiment, one end of the first link is fixedly connected to a support plate. The other end of the first link is nested inside a second link, and the end of the second link away from the first link is fixedly connected to a base. A spring member, respectively connected to the first link and the second link, is disposed inside the hollow space where the first and second links are nested.

[0012] According to a preferred embodiment, the vibration assembly includes a vibration rod connected to a base, a first rotating rod rotatably connected to the end of the vibration rod away from the base, and a second rotating rod rotatably connected to the first rotating rod. A rotating shaft is provided at the end of the second rotating rod away from the first rotating rod. A motor is connected to the rotating shaft.

[0013] According to a preferred embodiment, the length of the first rotating rod is greater than the length of the second rotating rod.

[0014] According to a preferred embodiment, a feed inlet is provided vertically above the housing. The feed inlet is shaped to first slope and narrow, then slope and widen. A second guide plate is provided in the feed inlet, located on the geometric axis of symmetry of the feed inlet. The second guide plate is configured as an inclined equilateral triangle to divide the feed inlet near the first guide plate into two outlets facing the V-shaped sides of the first guide plate.

[0015] According to a preferred embodiment, a collection cavity is provided vertically below the housing.

[0016] According to a preferred embodiment, the side wall of the housing is further provided with an opening for removing the first guide plate. Attached Figure Description

[0017] Figure 1 This is a simplified structural diagram of a V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to a preferred embodiment of this utility model.

[0018] Figure 2 This is a simplified structural diagram of the V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to a preferred embodiment of the present invention.

[0019] Figure 3 This is a simplified structural cross-sectional view of the first guide plate and base according to a preferred embodiment of the present invention;

[0020] Figure 4 This is a simplified structural diagram of the base according to a preferred embodiment of the present invention;

[0021] Figure 5 This is a simplified structural diagram of the base after the first and second connecting rods of the preferred embodiment of the present invention are no longer nested.

[0022] Figure 6 This is a simplified structural schematic diagram of the base of a preferred embodiment provided by this utility model from another perspective;

[0023] Figure 7 This is a simplified structural diagram of the feed inlet after being cut open according to a preferred embodiment of the present invention.

[0024] List of reference numerals

[0025] 100: Housing; 101: First guide plate; 102: Screen hole; 103: Base; 104: Guide screen; 105: Screen teeth; 106: Baffle bar; 107: Support plate; 108: First connecting rod; 109: Second connecting rod; 110: Spring component; 111: Inlet; 112: Second guide plate; 113: Collection chamber; 200: Vibration assembly; 201: Vibration rod; 202: First rotating rod; 203: Second rotating rod; 204: Rotating shaft. Detailed Implementation

[0026] The following is a detailed explanation with reference to the accompanying drawings.

[0027] Example 1

[0028] This utility model provides a V-shaped guide plate linkage device for material diversion in a multi-stage screening machine, such as... Figure 1 As shown, it includes a housing 100. (As shown) Figure 2As shown, the housing 100 is hollow, and a first guide plate 101 is disposed inside the housing 100. A plurality of sieve holes 102 are arranged on the first guide plate 101. A base 103 is detachably connected to the lower vertical part of the first guide plate 101. A vibration assembly 200 is connected to the lower vertical end of the base 103. A plurality of guide screens 104 are also disposed on the first guide plate 101. The guide screens 104 are V-shaped on the plane of the first guide plate 101, facing the lowest vertical point of the first guide plate 101. A plurality of sieve teeth 105 are also disposed on the guide screens 104, spaced apart along the extending direction of the guide screens 104 and perpendicular to the first guide plate 101. This utility model achieves preliminary screening of materials by providing a first guide plate 101 with sieve holes 102 inside the housing 100, allowing materials that conform to the size of the sieve holes 102 to fall and complete basic separation. The V-shaped design of the guide screen 104 prevents tea leaves from accumulating during the sieving process. Through the combing and guiding action of the guide screen 104, the tea leaves rolling on the first guide plate 101 are evenly separated and distributed, improving the sieving utilization rate. The sieve teeth 105 on the guide screen 104, perpendicular to the first guide plate 101, gently comb the tea leaves, preventing the tea fibers from being snagged and causing bud breakage, and separating any sticky tea clumps (such as slightly damp tea leaves). Simultaneously, it performs a secondary sieving of the tea leaves, separating any debris mixed in with the leaves to ensure the quality of the tea. The first guide plate 101 is detachable, facilitating subsequent cleaning of residual tea leaves and tea hairs (tea hairs easily remain on the guide plate, affecting subsequent sieving), or allowing replacement with a first guide plate 101 suitable for different tea types (such as green tea and black tea, with different bud and leaf sizes), reducing equipment maintenance costs. The vibration component 200 is connected to the base 103 and can provide vibration power to the first guide plate 101, enhance the movement activity of tea materials on the plate surface, reduce the probability of material clogging the screen holes 102, and greatly improve the overall screening efficiency.

[0029] According to a preferred embodiment, such as Figure 3 As shown, the first guide plate 101 is V-shaped. A guide sieve 104 contacts the vertical surface of the first guide plate 101. A baffle 106 is provided along the circumferential edge of the first guide plate 101. Several guide sieves 104 are arranged within the space enclosed by the baffle 106. The V-shaped first guide plate 101 guides the loose tea leaves to converge towards the lowest vertical point of the first guide plate 101, preventing the tea leaves from bridging due to their looseness (loose tea leaves easily become airborne, leading to sieving failure), and improving the uniformity of tea flow. The guide sieve 104 contacts the upper surface of the first guide plate 101, ensuring that the loose tea leaves move entirely under the guidance of the guide sieve 104, preventing tea leaves from leaking out of the gaps and causing mixing of tea leaves of different grades. The baffle 106 along the circumferential edge of the first guide plate 101 prevents tea leaves from popping out from the edge of the plate during vibration, preventing tea waste and damage to the appearance.

[0030] According to a preferred embodiment, a plurality of guide sieves 104 are symmetrically arranged about the axis of the first guide plate 101. The symmetrical structure ensures uniform distribution of tea leaves during the sieving process and improves the accuracy of tea grading.

[0031] According to a preferred embodiment, such as Figures 4 to 6 As shown, the main body 100 also has at least two support plates 107 inside for supporting the base 103. The support plates 107 are fixedly connected to the interior of the main body 100. A first connecting rod 108 and a second connecting rod 109 are nested between the support plates 107 and the base 103. The two support plates 107 provide stable support for the base 103 and the first guide plate 101, preventing the base 103 from shifting when the vibration assembly 200 is working, which would cause "partial missed screening" of the tea during the sieving process. The first connecting rod 108 and the second connecting rod 109 nested between the support plates 107 and the base 103 can precisely limit the vibration direction (vertical up and down vibration) of the base 103, preventing the base 103 from tilting and causing the tea to slide to one side, ensuring that the vibration energy is accurately applied to the tea sieving, and improving the thoroughness of tea grading.

[0032] According to a preferred embodiment, one end of the first connecting rod 108 is fixedly connected to the support plate 107. The other end of the first connecting rod 108 is nested inside the second connecting rod 109, and the end of the second connecting rod 109 away from the first connecting rod 108 is fixedly connected to the base 103. A spring member 110, respectively connected to the first connecting rod 108 and the second connecting rod 109, is provided inside the hollow space where the first connecting rod 108 and the second connecting rod 109 are nested. This nested structure, where the first connecting rod 108 is fixed to the support plate 107 and the second connecting rod 109 is fixed to the base 103, allows for flexible expansion and contraction with vibration, adapting to the small vibrations of the base 103 driven by the vibration assembly 200 (small vibrations are needed to prevent breakage during tea sieving), and avoiding excessive vibration amplitude caused by rigid connections.

[0033] According to a preferred embodiment, the vibration assembly 200 includes a vibrating rod 201 connected to a base 103, a first rotating rod 202 rotatably connected to the end of the vibrating rod 201 away from the base 103, and a second rotating rod 203 rotatably connected to the first rotating rod 202. A rotating shaft 204 is provided at the end of the second rotating rod 203 away from the first rotating rod 201. A motor is connected to the rotating shaft 204. The vibration assembly 200 converts the rotational motion of the motor into reciprocating vibration through the cooperation of the vibrating rod 201, the first rotating rod 202, the second rotating rod 203, and the rotating shaft 204 (connected to the motor). Continuous and stable vibration power ensures uniform sieving of tea leaves, reduces residue, guarantees the purity of the tea grade, and expands the application range of the equipment in the tea processing field.

[0034] According to a preferred embodiment, the length of the first rotating rod 202 is greater than the length of the second rotating rod 203. This achieves vibration of the base 103 while avoiding excessive amplitude, thus improving the economy and quality assurance of tea sieving.

[0035] According to a preferred embodiment, a feed inlet 111 is provided vertically upward on the housing 100. The feed inlet 111 is configured in a shape that first slopes and narrows, then slopes and widens. For example... Figure 7 As shown, a second guide plate 112 is provided in the feed inlet 111, located on the geometric axis of symmetry of the feed inlet 111. The second guide plate 112 is shaped as an inclined equilateral triangle to divide the feed inlet 111 near the first guide plate 101 into two outlets facing the V-shaped sides of the first guide plate 101. The shape of the feed inlet 111, which "first tilts and contracts and then tilts and expands," can buffer the falling speed of the tea leaves (tea leaves are light and easily broken by impact if they fall too fast), prevent the buds from breaking due to direct impact with the first guide plate 101, and prevent loose tea leaves from clogging the feed inlet 111. The inclined equilateral triangle shape of the second guide plate 112 in the feed inlet 111 can evenly distribute the tea leaves to both sides of the V-shape of the first guide plate 101, avoid the accumulation of tea leaves on one side, ensure that the screening intensity of tea leaves on both sides is consistent, improve the uniformity of tea grade classification, and reduce the decrease in screening efficiency caused by uneven distribution.

[0036] According to a preferred embodiment, a collection chamber 113 is provided vertically below the housing 100. The collection chamber 113 collects the impurities that fall off during screening.

[0037] According to a preferred embodiment, the side wall of the housing 100 is further provided with an opening for removing the first guide plate 101. The opening on the side wall of the housing 100 for removing the first guide plate 101 allows the first guide plate 101 to be quickly removed without disassembling the equipment, which facilitates the removal of the sieved tea leaves and also makes it easy to clean the tea hairs and fragments remaining on the sieve holes 102 and sieve teeth 105.

[0038] It should be noted that the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection scope. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. This utility model specification contains multiple inventive concepts; phrases such as "preferred" or "according to a preferred embodiment" indicate that the corresponding paragraph discloses an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept. Throughout the text, the feature introduced by "preferred" is only an optional mode and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A V-shaped guide plate linkage device for material diversion in a multi-stage screening machine, characterized in that, The system includes a housing (100), which is hollow and has a first guide plate (101) inside. The first guide plate (101) has a plurality of sieve holes (102) arranged on it. A base (103) is detachably connected to the lower vertical direction of the first guide plate (101), and a vibration assembly (200) is connected to the lower vertical end of the base (103). The first guide plate (101) is also provided with a plurality of guide screens (104). The guide screens (104) are set in a V shape on the plane of the first guide plate (101) in a manner facing the lowest vertical point of the first guide plate (101). The guide screens (104) are also provided with a plurality of screen teeth (105) that are spaced apart along the extension direction of the guide screens (104) and perpendicular to the first guide plate (101).

2. The V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to claim 1, characterized in that, The first guide plate (101) is configured as a V-shape, and the guide screen (104) is in contact with the vertical surface of the first guide plate (101), wherein, The first guide plate (101) has baffles (106) on its circumferential edge, and a plurality of the guide screens (104) are arranged in the space enclosed by the baffles (106).

3. The V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to claim 2, characterized in that, Several of the flow guide screens (104) are arranged symmetrically about the axis of the first flow guide plate (101).

4. The V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to claim 3, characterized in that, The housing (100) is further provided with at least two support plates (107) for supporting the base (103). The support plates (107) are fixedly connected to the interior of the housing (100). A first connecting rod (108) and a second connecting rod (109) are nested between the support plates (107) and the base (103).

5. The V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to claim 4, characterized in that, One end of the first connecting rod (108) is fixedly connected to the support plate (107), and the other end of the first connecting rod (108) is nested into the second connecting rod (109). The end of the second connecting rod (109) away from the first connecting rod (108) is fixedly connected to the base (103). The hollow interior of the nested first link (108) and second link (109) is provided with spring members (110) that are respectively connected to the first link (108) and the second link (109).

6. The V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to claim 5, characterized in that, The vibration assembly (200) includes a vibration rod (201) connected to the base (103), a first rotating rod (202) rotatably connected to the end of the vibration rod (201) away from the base (103), and a second rotating rod (203) rotatably connected to the first rotating rod (202). The second rotating rod (203) has a rotating shaft (204) at the end away from the first rotating rod (202), and the rotating shaft (204) is connected to a motor.

7. The V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to claim 6, characterized in that, The length of the first rotating rod (202) is greater than the length of the second rotating rod (203).

8. The V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to claim 7, characterized in that, A feed inlet (111) is provided vertically above the housing (100). The feed inlet (111) is designed to first narrow at an angle and then widen at an angle. The feed inlet (111) is provided with a second guide plate (112) located on the geometric axis of symmetry of the feed inlet (111). The second guide plate (112) is configured as an inclined equilateral triangle to divide the feed inlet (111) near the first guide plate (101) into two outlets facing the first guide plate (101) in a V shape.

9. The V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to claim 8, characterized in that, A collection chamber (113) is provided vertically below the housing (100).

10. The V-shaped guide plate linkage device for material diversion in a multi-stage screening machine according to claim 9, characterized in that, The side wall of the housing (100) is also provided with an opening for removing the first guide plate (101).

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