Traditional Chinese medicine raw material rolling screening device

Abstract

The utility model discloses a traditional Chinese medicine raw material rolling screening device which comprises a screening channel which is horizontally arranged and internally provided with a rotatable screening mechanism. The feeding hopper and the discharging hopper are arranged at the two ends of the screening channel correspondingly to keep the medicinal materials entering the screening mechanism to be screened; the fan is arranged at the lower end of the feeding hopper and discharges positive pressure air into the screening channel to perform winnowing and conveying on the medicinal materials; and the exhaust pipe is arranged at the top of the screening channel and exhausts air in the screening channel. According to the screening device, rolling screening can be conveniently conducted on medicinal materials through the rotatable screening mechanism arranged in the screening channel, dust adhering to the outer portions of the medicinal materials can be discharged in time in combination with the draught fan and the exhaust pipe, and the screening environment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medicinal material processing, in particular to a rolling screening device for Chinese medicinal material raw materials. Background Art

[0002] During the processing of medicinal materials, they need to be screened. After screening, the medicinal materials will be processed in the next step. Screening is to use a sieve to allow fine particles smaller than the sieve holes to pass through the sieve surface, while coarse particles larger than the sieve holes are retained on the sieve surface, thereby completing the process of separating coarse and fine materials.

[0003] Currently, most screening devices are vibration screening, that is, by tilting the screen set on the bracket and driving the screen to vibrate with a vibration motor, the medicinal materials are poured onto the screen, and the medicinal materials larger than the screen holes are blocked, while the medicinal materials smaller than the screen holes pass through the screen and fall down, thereby achieving the purpose of screening and separation. However, since the medicinal materials may need to be cut and dried before screening, dust will inevitably adhere to the drying process. Therefore, vibration screening is likely to cause dust to fly, seriously affecting the screening environment. In addition, some vibration screening devices install the screen horizontally, so the medicinal materials on the screen need to be manually removed after screening, which is not conducive to continuous screening. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a rolling screening device for Chinese medicinal materials. The rolling screening device facilitates the screening and transportation of medicinal materials through a rotatable screening mechanism horizontally arranged in the screening channel, thereby realizing continuous screening of medicinal materials. A fan and an exhaust pipe are arranged at the outer end of the screening channel, which can directly extract the dust generated during screening to ensure the processing environment during screening.

[0005] The utility model is realized by constructing a rolling screening device for Chinese medicinal materials.

[0006] Including screening channel, arranged horizontally;

[0007] A screening mechanism is rotatably arranged in the screening channel to screen and transport the medicinal materials;

[0008] The feed hopper and the discharge hopper are respectively arranged at both ends of the screening channel to keep the medicinal materials entering the screening mechanism for screening;

[0009] The fan is installed at the lower end of the feed hopper to discharge positive pressure air into the screening channel to air-select and transport the medicinal materials;

[0010] The exhaust pipe is arranged at the top of the screening channel to discharge the air in the screening channel.

[0011] Specifically, the screening channel includes a supporting frame, baffles arranged on both sides of the inner end of the supporting frame and an arc-shaped cover plate on the top, and several waste hoppers arranged at the lower end of the baffle and fixed inside the supporting frame. The several waste hoppers are arranged side by side. The baffles on both sides of the supporting frame, the arc-shaped cover plate and the waste hopper at the lower end are combined with each other to form a screening channel. The exhaust pipe is arranged on the arc-shaped cover plate and remains connected to the inside of the screening channel.

[0012] Specifically, a driving motor and a transmission mechanism are provided on the support frame, and the transmission mechanism is connected to the driving motor and the screening mechanism for driving the screening mechanism to rotate through the driving motor.

[0013] Specifically, the screening mechanism includes a rotating shaft, both ends of which are mounted on a supporting frame through bearings and one end of which is extended to the outside of the screening channel and connected to the transmission mechanism;

[0014] Several support rings are coaxially fixed to the outside of the rotating shaft through the support rods at the inner ends;

[0015] Several screening rods are evenly spaced and connected between two adjacent support rings;

[0016] The guide plates are respectively arranged on the outer ends of the outermost support rings to guide the medicinal materials dropped from the feed hopper to the screening rods of the support rings, and are also used to guide the medicinal materials screened on the screening rods into the discharge hopper.

[0017] The spiral slices are arranged on the support ring and the inner end of the screening rod for conveying medicinal materials.

[0018] Specifically, the feed hopper is supported by a bracket arranged on the support frame, the discharge end of the feed hopper is inclined and extends into the support ring of the screening mechanism, and a mounting plate is provided at the lower end of the bracket, a fan is fixed on the mounting plate and the air outlet of the fan is kept corresponding to the support ring.

[0019] Specifically, a roller for supporting the screening mechanism and driving the screening mechanism to rotate is further provided in the support frame, and the roller is in contact with the outer end of the support ring.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] 1. The rolling screening device facilitates the screening and transportation of medicinal materials through a rotatable screening mechanism horizontally arranged in the screening channel, thereby realizing continuous screening of medicinal materials. A fan and exhaust pipe are set at the outer end of the screening channel to directly extract the dust generated during screening, ensuring the processing environment during screening.

[0022] 2. The rolling screening device facilitates the transportation and screening of medicinal materials by setting the specific shape of the screening mechanism, and can also screen out some leaves mixed in the medicinal materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the specific embodiments of the present invention, they are used to explain the present invention but do not constitute any limitation to the present invention. In the accompanying drawings:

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the main viewing direction of the present utility model;

[0026] Figure 3 for Figure 2 Schematic diagram of the cross section at AA in the middle;

[0027] Figure 4 This is a structural diagram of the utility model from another perspective;

[0028] Figure 5 This is a schematic diagram of the structure of the utility model without the arc-shaped cover plate;

[0029] Figure 6 It is a structural diagram of the screening mechanism in the present utility model;

[0030] In the figure: 1. Support frame; 2. Baffle; 3. Waste hopper; 4. Discharge hopper; 5. Arc cover; 6. Exhaust pipe; 7. Screening mechanism; 7.1. Rotating shaft; 7.2. Support rod; 7.3. Support ring; 7.4. Screening rod; 7.5. Guide plate; 7.6. Spiral sheet; 8. Drive motor; 9. Transmission mechanism; 10. Feed hopper; 11. Bracket; 12. Mounting plate; 13. Fan; 14. Roller. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention in any way. The accompanying drawings in the present invention are only used to assist in the description of the embodiments and to facilitate understanding and are not intended to limit the present invention in any way.

[0032] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0033] As described in the background technology, when existing vibration screening devices are used to screen medicinal materials, dust will adhere to the medicinal materials during the chopping and drying process, so the vibration screening easily causes dust to fly, thereby affecting the screening environment, and some vibration screening devices are not conducive to achieving continuous screening.

[0034] For the reasons mentioned above, please refer to the attached Figure 1 -Attached Figure 4 , the utility model provides a rolling screening device for Chinese medicinal materials, including a screening channel, which is horizontally arranged;

[0035] The screening mechanism 7 is rotatably arranged in the screening channel to screen and transport the medicinal materials;

[0036] The feed hopper 10 and the discharge hopper 4 are respectively arranged at both ends of the screening channel to keep the medicinal materials entering the screening mechanism 7 for screening;

[0037] The fan 13 is provided at the lower end of the feed hopper 10 and discharges positive pressure air into the screening channel to air-select and transport the medicinal materials;

[0038] The exhaust pipe 6 is arranged at the top of the screening channel to discharge the air in the screening channel.

[0039] Specifically, the screening channel includes a supporting frame 1, baffles 2 arranged on both sides of the inner end of the supporting frame 1 and a curved cover plate 5 on the top, and several waste hoppers 3 arranged at the lower end of the baffle 2 and fixed inside the supporting frame 1. Several waste hoppers 3 are arranged side by side, and the baffles 2 on both sides of the supporting frame 1, the curved cover plate 5 and the waste hopper 3 at the lower end are combined with each other to form a screening channel. The exhaust pipe 6 is arranged on the curved cover plate 5 and remains connected to the inside of the screening channel.

[0040] Through the technical features described in the previous paragraph, the screening channel is formed by the baffle 2, the arc-shaped cover plate 5 and the waste hopper 3 at the lower end, which is convenient for forming a closed cylindrical structure, which is convenient for feeding, screening and discharging while suppressing dust from flying outward, thereby ensuring the screening processing environment.

[0041] Specifically, a driving motor 8 and a transmission mechanism 9 are provided on the support frame 1 . The transmission mechanism 9 is connected to the driving motor 8 and the screening mechanism 7 to drive the screening mechanism 7 to rotate through the driving motor 8 .

[0042] Through the technical features described in the previous paragraph, the drive motor and transmission mechanism are set to drive the screening mechanism to rotate automatically, thereby realizing the screening and transportation of medicinal materials. The transmission mechanism is a conventional belt transmission mechanism.

[0043] Please refer to the attached Figure 6Specifically, the screening mechanism 7 includes a rotating shaft 7.1, both ends of which are mounted on the supporting frame 1 through bearings and keep either end extending to the outside of the screening channel and connected to the transmission mechanism 9;

[0044] Several support rings 7.3 are coaxially fixed to the outside of the rotating shaft 7.1 through the support rod 7.2 at the inner end;

[0045] Several screening rods 7.4 are evenly spaced and connected between two adjacent support rings 7.3;

[0046] The guide plates 7.5 are respectively arranged on the outer ends of the outermost support rings 7.3 to guide the medicinal materials dropped from the feed hopper 10 to the screening rods 7.4 of the support rings 7.3, and are also used to guide the medicinal materials screened on the screening rods 7.4 into the discharge hopper 4.

[0047] The spiral sheet 7.6 is provided at the inner end of the support ring 7.3 and the screening rod 7.4 for conveying medicinal materials.

[0048] According to the technical features described in the previous paragraph, the specific shape of the screening mechanism is set to facilitate the screening and transportation of medicinal materials, and at the same time it can realize the screening of tree leaves (because the leaves are flat, the sieve holes of conventional screens cannot screen out the leaves).

[0049] Please see the attached Figure 5 Specifically, the feed hopper 10 is supported by a bracket 11 provided on the support frame 1. The discharge end of the feed hopper 10 is tilted and extends into the support ring 7.3 of the screening mechanism 7. A mounting plate 12 is provided at the lower end of the bracket 11. A fan 13 is fixed on the mounting plate 12 and the air outlet of the fan 13 is kept corresponding to the support ring 7.3.

[0050] According to the technical features described in the previous paragraph, the installation position of the fan is set to blow the medicinal materials into the screening mechanism during feeding, and at the same time blow the generated dust into the inside of the screening channel to prevent overflow from the feed hopper and ensure the screening environment.

[0051] Please refer again to the attached Figure 6 Specifically, a roller 14 for supporting the screening mechanism 7 and driving the screening mechanism 7 to rotate is further provided in the support frame 1, and the roller 14 is in contact with the outer end of the support ring 7.3.

[0052] According to the technical features described in the previous paragraph, the roller is provided to ensure the stability of the screening mechanism during rotation.

[0053] During the screening process, the drive motor 8 and the fan 13 are pre-started to rotate the screening mechanism 7 (note that the direction of rotation can be used for the spiral blades to transport the medicinal materials toward the discharge hopper). At the same time, positive pressure air is blown into the screening channel. At the same time, the exhaust pipe 6 is connected to an external air pump to facilitate the extraction of air in the screening channel. The medicinal materials are then placed in the feed hopper 10 and fall onto the screening rods 7.4 inside the support ring 7.3 of the screening mechanism 7 under the action of gravity. The medicinal materials larger than the gap between the two screening rods 7.4 remain on the screening rods 7.4 and are transported by the spiral blades 7.6 and eventually fall into the discharge hopper 4. The medicinal materials smaller than the gap between the two screening rods 7.4 pass through the gap and fall into the waste hopper 3. The dust adhering to the medicinal materials falls off due to the rotation of the screening mechanism 7 and is sucked out by the negative pressure air generated by the exhaust pipe 6. The positive pressure air generated by the fan 13 is blocked by the medicinal materials inside the screening mechanism 7 and the energy loss effectively prevents the dust from being discharged from the other end of the screening channel, thereby ensuring a good screening environment.

[0054] The above description is a detailed description of the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modifications completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A rolling screening device for Chinese medicinal materials, characterized by: include, The screening channel is arranged horizontally; A screening mechanism is rotatably arranged in the screening channel to screen and transport the medicinal materials; The feed hopper and the discharge hopper are respectively arranged at both ends of the screening channel to keep the medicinal materials entering the screening mechanism for screening; The fan is installed at the lower end of the feed hopper to discharge positive pressure air into the screening channel to air-select and transport the medicinal materials; The exhaust pipe is arranged at the top of the screening channel to discharge the air in the screening channel.

2. The rolling screening device for Chinese medicinal materials according to claim 1, characterized in that: The screening channel includes a supporting frame, baffles arranged on both sides of the inner end of the supporting frame and an arc-shaped cover plate on the top, and several waste hoppers arranged at the lower end of the baffle and fixed inside the supporting frame. The several waste hoppers are arranged side by side. The baffles on both sides of the supporting frame, the arc-shaped cover plate and the waste hopper at the lower end are combined with each other to form a screening channel. The exhaust pipe is arranged on the arc-shaped cover plate and remains connected to the inside of the screening channel.

3. The rolling screening device for Chinese medicinal materials according to claim 2, characterized in that: The support frame is provided with a driving motor and a transmission mechanism, and the transmission mechanism is connected with the driving motor and the screening mechanism for driving the screening mechanism to rotate through the driving motor.

4. The rolling screening device for Chinese medicinal materials according to claim 3, characterized in that: The screening mechanism includes a rotating shaft, both ends of which are mounted on the support frame through bearings and one end of which is extended to the outside of the screening channel and connected to the transmission mechanism; Several support rings are coaxially fixed to the outside of the rotating shaft through the support rods at the inner ends; Several screening rods are evenly spaced and connected between two adjacent support rings; The guide plates are respectively arranged on the outer ends of the outermost support rings and are used to guide the medicinal materials dropped from the feed hopper to the screening rods of the support rings, and are also used to guide the medicinal materials screened on the screening rods into the discharge hopper; The spiral slices are arranged on the support ring and the inner end of the screening rod for conveying medicinal materials.

5. The rolling screening device for Chinese medicinal materials according to claim 4, characterized in that: The feed hopper is supported by a bracket arranged on the support frame. The discharge end of the feed hopper is tilted and extends into the support ring of the screening mechanism. A mounting plate is provided at the lower end of the bracket. A fan is fixed on the mounting plate and the air outlet of the fan is kept corresponding to the support ring.

6. The rolling screening device for Chinese medicinal materials according to claim 4, characterized in that: A roller for supporting the screening mechanism and driving the screening mechanism to rotate is also provided in the support frame, and the roller is in contact with the outer end of the support ring.

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