Multi-toothed disc grinding device for tea powder crushing

Abstract

The utility model belongs to tea processing equipment technical field relates to a kind of multi-toothed disc grinding devices for tea powder crushing.The device is supported with base, and support frame is provided on base, and support collecting cover and grinding shell are provided.Electric motor drives main shaft rotation, and upper toothed disc, intermediate toothed disc and lower toothed disc are slidably arranged on main shaft, and each toothed disc is provided with grinding lug.Tea falls into by feed inlet, and is collected by collecting cover after being ground layer by layer by multi-toothed disc and is exported from discharge port.Upper filter and lower filter screen are slidably arranged on intermediate connecting ring, and used for filtering and guiding material.In addition, main shaft drives eccentric wheel to make collecting cover vibrate, to prevent tea powder from adhering and blocking, and the fan leaf of upper cover can disturb material.The device realizes efficient tea powder grinding through the structure of multi-toothed disc cooperation and filtering.

Description

Technical Field

[0001] This application relates to the technical field of tea processing equipment, specifically to a multi-tooth disc grinding device for pulverizing tea powder. Background Technology

[0002] In the process of processing tea leaves into tea powder, the performance of the grinding device is crucial. Existing tea powder grinding devices have several shortcomings. For example, some traditional devices use a single toothed disc, resulting in low grinding efficiency and difficulty in achieving sufficiently fine tea powder, thus affecting product quality. Furthermore, the lack of an effective filtration structure allows material to easily accumulate in the grinding area, increasing the rotational resistance of the toothed disc and even causing equipment malfunction. In addition, the material's movement path during the grinding process lacks proper guidance, failing to fully utilize grinding space and time, further reducing grinding effectiveness. Simultaneously, in the tea powder collection stage, the absence of vibration or other auxiliary structures allows tea powder to easily adhere to the inner wall of the collection device or form blockages, affecting tea powder collection and output.

[0003] Patent No.: CN202021402231, Patent Name: A stone mill for fine grinding of tea powder containing tea peptides. This stone mill grinds tea powder through the grinding grooves of the upper and lower grinding discs. The movement trajectory of the tea powder is relatively simple, relying solely on the grinding grooves from deep to shallow to make the tea powder rotate from the center to the outside. The contact method and movement path between the tea powder and the grinding components during the grinding process are relatively simple, which may result in insufficient and incomplete grinding. It relies on brush rods and brush bristles to prevent the mesh plate from clogging. The structure is relatively simple and mainly prevents clogging in the transition stage from crushing to grinding. It lacks targeted design for clogging problems that may be caused by the accumulation of tea powder during the grinding process.

[0004] Therefore, there is a need for a tea powder grinding device that can improve grinding efficiency, refine tea powder specifications, rationally guide the material grinding path, and solve the problems of material blockage and adhesion. Summary of the Invention

[0005] In response to the above-mentioned technical problems, this application solves the problems of low grinding efficiency, insufficient fineness of tea powder, easy clogging and adhesion of materials, and difficulty in effectively guiding the grinding path of materials in existing tea powder grinding devices.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a multi-tooth disc grinding device for tea powder pulverization, comprising a base, on which four support frames are fixedly mounted, and a collection cover and a grinding shell are fixedly mounted on the support frames. A middle connecting ring is fixedly mounted on the collection cover, and the end of the middle connecting ring away from the collection cover is fixedly connected to the grinding shell. A motor is mounted on the base, and a main shaft is fixedly mounted on the output end of the motor. A limit block is mounted on the main shaft, and an upper toothed disc, a middle toothed disc, and a lower toothed disc are slidably mounted on the limit block. The upper toothed disc, the middle toothed disc, and the lower toothed disc are all provided with protrusions for grinding, and a through hole for conveying is provided on the middle toothed disc near the main shaft.

[0007] To better realize this application, an upper filter and a lower filter screen are slidably provided on the intermediate connecting ring for filtering the material being ground, and both the upper filter and the intermediate toothed disc are fixedly connected to the grinding shell.

[0008] To better realize this application, the upper filter and the lower filter screen are further described as having a conical funnel structure and facing opposite directions, with the upper filter screen installed between the upper toothed disc and the middle toothed disc, and the lower filter screen installed between the middle toothed disc and the lower toothed disc.

[0009] To better realize this application, the upper toothed disc is rotatably connected to the grinding shell, and the upper toothed disc is provided with two outwardly convex conical end faces, the conical structure near the middle toothed disc matching the conical structure of the upper filter.

[0010] To better realize this application, the intermediate toothed disk is rotatably connected to the grinding shell, and the intermediate toothed disk is provided with two concave conical end faces. The conical structure near the upper toothed disk matches the conical structure of the upper filter, and the conical structure near the lower toothed disk matches the conical structure of the lower toothed disk.

[0011] To better realize this application, the lower toothed disc is rotatably connected to the grinding shell, and an outwardly convex conical structure is provided on one end of the lower toothed disc near the middle toothed disc, which matches the conical structure of the lower filter screen.

[0012] To better realize this application, a support rod is rotatably provided on the main shaft, an eccentric wheel is fixedly connected to the main shaft, and the support rod is fixedly connected to the collection cover.

[0013] To better realize this application, the upper cover is further provided with a feed inlet and a fan blade. The feed inlet is used for feeding material, and the fan blade is used to agitate the material on the upper gear plate.

[0014] The technical solution provided in this application has the following advantages compared with the prior art:

[0015] 1. This application uses a grinding method with three toothed discs (upper, middle, and lower). The tea leaves are ground sequentially by the upper, middle, and lower toothed discs, refining the tea powder multiple times. Compared with traditional single-disc grinding, this method greatly improves grinding efficiency and the fineness of the tea powder, ensuring the quality of the tea powder.

[0016] 2: This application sets up an upper filter and a lower filter in the middle, which can not only block the material and bring the material closer to the toothed disc for easier grinding, but also filter out tea powder that meets the specifications in time, avoid material accumulation and increase the rotation resistance of the toothed disc, further improve grinding efficiency, and solve the problem of traditional devices being affected by material accumulation.

[0017] 3: This application designs the upper and lower filters as conical funnel structures facing opposite directions, matching the conical structure of the toothed disc. This effectively guides the material movement path, allowing tea leaves and tea powder to be transferred more rationally between the toothed discs during the grinding process, increasing grinding time and effect, and optimizing the material grinding process.

[0018] 4: This application uses the main shaft to drive the eccentric wheel to rotate and generate vibration, which is transmitted to the collection hood through the support rod. This effectively prevents tea powder from sticking to the inner wall of the collection hood or forming a blockage, ensuring the smooth collection and output of tea powder and solving the material blockage and sticking problems of traditional devices.

[0019] 5: This application provides fan blades on the upper cover. When the upper toothed disc rotates, the fan blades can block and guide the tea leaves to move in all directions, allowing them to smoothly enter the gap between the upper toothed disc and the grinding shell and be conveyed downwards. This optimizes the material feeding and initial grinding guidance process and improves the overall grinding efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this application;

[0021] Figure 2 This is a schematic diagram of the eccentric wheel in this application;

[0022] Figure 3 This is a cross-sectional view of the upper gear plate of this application;

[0023] Figure 4 This is an isometric sectional view of the main shaft of this application;

[0024] Figure 5 This is a first-view exploded structural diagram of the multi-stage gear disc of this application;

[0025] Figure 6 This is a second-view exploded structural diagram of the multi-stage gear disc of this application.

[0026] In the diagram: 101-Base; 102-Support frame; 103-Collection cover; 104-Grinding shell; 105-Feed inlet; 106-Top cover; 107-Discharge outlet; 108-Intermediate connecting ring; 109-Main shaft; 110-Support rod; 111-Eccentric wheel; 112-Fan blade; 113-Upper gear plate; 114-Upper filter; 115-Intermediate gear plate; 116-Lower filter screen; 117-Lower gear plate. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] like Figures 1 to 6 As shown, a multi-tooth disc grinding device for pulverizing tea powder includes a base 101. Four support frames 102 are fixedly mounted on the base 101. A collection cover 103 and a grinding shell 104 are fixedly mounted on the support frames 102. An intermediate connecting ring 108 is fixedly mounted on the collection cover 103. The end of the intermediate connecting ring 108 away from the collection cover 103 is fixedly connected to the grinding shell 104. A motor is mounted on the base 101. A main shaft 109 is fixedly mounted on the output end of the motor. A limit block is mounted on the main shaft 109. An upper toothed disc 113, an intermediate toothed disc 115, and a lower toothed disc 117 are slidably mounted on the limit block. The upper toothed disc 113, the intermediate toothed disc 115, and the lower toothed disc 117 are all provided with protrusions for grinding. A through hole for conveying is provided on the intermediate toothed disc 115 near the main shaft 109.

[0030] Specifically, tea leaves are fed into the mill through the tapered inlet 105. The tea leaves fall through the pipe of the inlet 105 onto the upper surface of the upper gear disc 113 inside the grinding shell 104. Then, a motor inside the base 101 drives the main shaft 109 to rotate on the base 101, thereby driving the upper gear disc 113, the middle gear disc 115, and the lower gear disc 117 to rotate on the grinding shell 104. This causes the upper gear disc 113 to move the tea leaves outwards, and through the gap between the upper gear disc 113 and the grinding shell 104, they move downwards onto the middle gear disc 115. The tea powder is further refined by grinding in both the upper and lower directions of the intermediate toothed disc 115 and the upper filter 114. The tea powder then falls onto the lower toothed disc 117 through the hole in the middle of the intermediate toothed disc 115. The lower toothed disc 117 then cooperates with the intermediate toothed disc 115 to continue grinding, further refining the tea powder. Finally, the lower toothed disc 117 moves the tea powder to the periphery of the lower toothed disc 117 and enters the internal channel of the collection tank of the collection hood 103 through the opening at the upper end of the collection hood 103. Finally, it is transported through the discharge port 107 on the collection hood 103.

[0031] like Figures 1 to 6As shown, an upper filter 114 and a lower filter screen 116 are slidably disposed on the intermediate connecting ring 108 for filtering the material being ground. The upper filter 114 and the intermediate toothed disc 115 are both fixedly connected to the grinding shell 104.

[0032] Specifically, when grinding, the upper toothed disc 113, the middle toothed disc 115, and the lower toothed disc 117 use an upper filter 114 and a lower filter screen 116 in the middle to block and filter the tea leaves or tea powder, making the distance between them and the three toothed discs closer, facilitating grinding. This also allows for the downward filtering of tea powder of a certain size, improving grinding efficiency and preventing a large amount of tea powder or tea leaves from accumulating in one place, increasing the resistance to the rotation of the toothed discs, and affecting normal operation.

[0033] like Figure 3 and Figure 6 As shown, the upper filter 114 and the lower filter 116 are conical funnel structures and face opposite directions. The upper filter 114 is installed between the upper toothed disc 113 and the middle toothed disc 115, and the lower filter 116 is installed between the middle toothed disc 115 and the lower toothed disc 117.

[0034] Specifically, the taper of the upper filter 114 is the same as the conical structure of the lower end face of the upper toothed disc 113, but the upper filter 114 maintains a certain gap with the upper toothed disc 113. This allows the tea leaves to move from the conical surface of the upper toothed disc 113 towards the grinding shell 104, and when they fall onto the upper filter 114 through the gap, the downward taper guides the tea leaves and tea powder towards the center of the main shaft 109. This allows the tea leaves and powder to pass through the gap between the upper filter 114 and the main shaft 109. The tea powder falls through the gap to the next layer, namely the middle toothed disc 115, and then through the middle toothed disc 115 to the lower toothed disc 117. During this process, some tea powder falls onto the lower filter screen 116. The upward taper of the lower filter screen 116 causes the tea powder to move towards the surroundings, that is, towards the inner wall of the grinding shell 104. This allows it to engage with the lower end face of the middle toothed disc 115 on the lower filter screen 116, forming a grinding process. The tea powder of the composite size falls through the filter holes of the lower filter screen 116 and is then conveyed through the lower toothed disc 117.

[0035] like Figure 3 and Figure 6 As shown, the upper toothed disk 113 is rotatably connected to the grinding shell 104. The upper toothed disk 113 is provided with two outwardly convex conical end faces. The conical structure at the end near the middle toothed disk 115 matches the conical structure of the upper filter 114.

[0036] Specifically, the upper toothed disc 113 has an upward taper at its upper end, which facilitates the conveying of material towards the inner wall of the grinding shell 104. There is a large gap between the upper toothed disc 113 and the grinding shell 104, which facilitates the entry of tea leaves. The sides and lower end faces of the upper toothed disc 113 are provided with protrusions, which are close to the inner wall of the grinding shell 104 and the upper end face of the upper filter 114, thereby improving the grinding efficiency and effect between the protrusions and the tea leaves.

[0037] like Figure 3 and Figure 6 As shown, the intermediate toothed disk 115 is rotatably connected to the grinding shell 104. The intermediate toothed disk 115 is provided with two concave conical end faces. The conical structure near the upper toothed disk 113 matches the conical structure of the upper filter 114, and the conical structure near the lower toothed disk 117 matches the conical structure of the lower toothed disk 117.

[0038] Specifically, the upper, lower, and side surfaces of the intermediate toothed disc 115 are provided with protrusions for grinding tea leaves and tea powder. The upper surface of the intermediate toothed disc 115 tapers downwards, while the lower surface tapers upwards, causing the tea powder at the top to move inwards and the tea powder at the bottom to move outwards. This increases the movement trajectory of the tea powder, extends the grinding time, and ensures the grinding effect.

[0039] like Figure 3 and Figure 6 As shown, the lower toothed disc 117 is rotatably connected to the grinding shell 104. The lower toothed disc 117 has an outwardly convex conical structure at one end near the middle toothed disc 115, which matches the conical structure of the lower filter screen 116.

[0040] Specifically, the upper end of the lower toothed disc 117 tapers upwards, engaging with the lower end of the middle toothed disc 115 and the taper of the lower filter screen 116, while maintaining a certain distance from the lower filter screen 116. The lower end face of the lower toothed disc 117 is rotatably connected to the housing of the collecting cover 103 near the main shaft 109, thereby sealing this area and preventing tea powder from falling into the space between the collecting cover 103 and the main shaft 109. After the tea powder on the upper end face of the lower toothed disc 117 is removed from the lower toothed disc 117, it is guided by the intermediate connecting ring 108 into the collecting groove of the collecting cover 103, and finally falls to the discharge port 107.

[0041] like Figure 2 and Figure 3 As shown, a support rod 110 is rotatably mounted on the main shaft 109, and an eccentric wheel 111 is fixedly connected to the main shaft 109. The support rod 110 is fixedly connected to the collection cover 103.

[0042] Specifically, when the main shaft 109 rotates, it drives the eccentric wheel 111 to rotate, generating vibration. This vibration is transmitted to the collection cover 103 through the support rod 110, allowing the tea powder on the collection tank of the collection cover 103 to fall off, preventing it from sticking to the inner wall or causing blockage.

[0043] like Figure 1 and Figure 3 As shown, the upper cover 106 is fixedly provided with a feed inlet 105 and a fan blade 112. The feed inlet 105 is used for feeding materials, and the fan blade 112 is used to agitate the materials on the upper gear plate 113.

[0044] Specifically, the material is fed through the opening at the top of the feed inlet 105. The upper end of the grinding shell 104 is sealed by the top cover 106. When the upper toothed disc 113 rotates, it drives the tea leaves to move. When the tea leaves come into contact with the fan blades 112, they are guided to move in all directions by the obstruction of the fan blades 112 and the arc-shaped structure of the fan blades 112, so that they enter the gap between the upper toothed disc 113 and the grinding shell 104 and are conveyed downward.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A multi-tooth disc grinding device for pulverizing tea powder, characterized in that: The system includes a base (101), on which four support frames (102) are fixedly mounted. A collection cover (103) and a grinding shell (104) are fixedly mounted on the support frames (102). An intermediate connecting ring (108) is fixedly mounted on the collection cover (103). One end of the intermediate connecting ring (108) away from the collection cover (103) is fixedly connected to the grinding shell (104). A motor is mounted on the base (101). A main shaft (109) is fixedly mounted on the output end of the motor. A limit block is mounted on the main shaft (109). An upper gear plate (113), an intermediate gear plate (115), and a lower gear plate (117) are slidably mounted on the limit block. The upper gear plate (113), the intermediate gear plate (115), and the lower gear plate (117) are all provided with protrusions for grinding. A through hole for conveying is provided on the intermediate gear plate (115) near the main shaft (109).

2. The multi-tooth disc grinding device for pulverizing tea powder according to claim 1, characterized in that: The intermediate connecting ring (108) is slidably provided with an upper filter (114) and a lower filter screen (116) for filtering the material being ground. The upper filter (114) and the intermediate toothed disc (115) are both fixedly connected to the grinding shell (104).

3. The multi-tooth disc grinding device for pulverizing tea powder according to claim 2, characterized in that: The upper filter (114) and the lower filter (116) are conical funnel structures and face opposite directions. The upper filter (114) is installed between the upper toothed disc (113) and the middle toothed disc (115), and the lower filter (116) is installed between the middle toothed disc (115) and the lower toothed disc (117).

4. The multi-tooth disc grinding device for pulverizing tea powder according to claim 3, characterized in that: The upper toothed disc (113) is rotatably connected to the grinding shell (104). The upper toothed disc (113) is provided with two outwardly convex conical end faces. The conical structure at the end near the middle toothed disc (115) matches the conical structure of the upper filter (114).

5. The multi-tooth disc grinding device for pulverizing tea powder according to claim 4, characterized in that: The intermediate toothed disk (115) is rotatably connected to the grinding shell (104). The intermediate toothed disk (115) is provided with two concave conical end faces. The conical structure near the upper toothed disk (113) matches the conical structure of the upper filter (114), and the conical structure near the lower toothed disk (117) matches the conical structure of the lower toothed disk (117).

6. The multi-tooth disc grinding device for pulverizing tea powder according to claim 5, characterized in that: The lower toothed disc (117) is rotatably connected to the grinding shell (104). The lower toothed disc (117) has an outwardly convex conical structure at one end near the middle toothed disc (115), which matches the conical structure of the lower filter screen (116).

7. The multi-tooth disc grinding device for pulverizing tea powder according to claim 6, characterized in that: A support rod (110) is rotatably mounted on the main shaft (109), and an eccentric wheel (111) is fixedly connected to the main shaft (109). The support rod (110) is fixedly connected to the collection cover (103).

8. The multi-tooth disc grinding device for pulverizing tea powder according to claim 7, characterized in that: The upper cover (106) is fixedly provided with a feed inlet (105) and a fan blade (112). The feed inlet (105) is used for feeding, and the fan blade (112) is used to agitate the material on the upper gear plate (113).

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