A medicinal material screening and grading device

Abstract

The application relates to a medicinal material screening and grading device, and belongs to the technical field of traditional Chinese medicine processing. The device comprises a rack, a slit screening mechanism and a mesh screening mechanism. The slit screening mechanism and the mesh screening mechanism are sequentially fixedly connected on the rack from top to bottom. The slit screening mechanism comprises a frame and a plurality of first screening rollers which are arranged in parallel in the frame and have the same interval. Each first screening roller is fixedly connected with a chain wheel at one end on the same side of the frame. Each chain wheel is simultaneously transmissionally connected with a chain. One end of one first screening roller, away from the chain wheel, is fixedly connected with a driving motor. The other end of the other first screening roller is fixedly provided with an eccentric wheel. When the eccentric wheel rotates, the eccentric wheel can impact the mesh screening mechanism to make the mesh screening mechanism shake. The application has the effect of improving the applicability of the medicinal material screening machine to mixed medicinal materials with different shapes and sizes.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of traditional Chinese medicine processing, and in particular to a medicinal material screening and grading device. BACKGROUND

[0002] Traditional Chinese medicine (TCM) refers to natural medicines and their processed substitutes which are used for preventing and treating diseases and have rehabilitation and health care effects under the guidance of TCM theory, and have a unique theoretical system and application form, and mainly include plant medicines, animal medicines and mineral medicines.

[0003] At present, the processing of traditional Chinese medicine materials is carried out as follows: since the shapes and sizes of the medicinal materials are different, some are in the form of strips and some are in the form of particles, the medicinal materials need to be screened by using a strip gap sieve plate first, the strip gap sieve plate can screen the strip-shaped medicinal materials and make the particle-shaped medicinal materials pass through, so that the strip-shaped medicinal materials and the particle-shaped medicinal materials are separated to realize the primary screening and grading of the mixed medicinal materials, and then the primary graded medicinal materials are screened by using a mesh sieve plate, the medicinal materials with large particles are isolated on the mesh sieve plate, and the medicinal materials with small particles can pass through the mesh sieve plate, so that the particle-shaped medicinal materials with different sizes are separated to realize the secondary screening and grading of the medicinal materials.

[0004] However, the existing medicinal material screening machines are all single mesh sieve plates or single strip gap sieve plates, and cannot finely grade the mixed medicinal materials with different shapes and sizes, and have the defect of low screening applicability to the mixed medicinal materials. SUMMARY

[0005] In order to improve the applicability of the medicinal material screening machine to the mixed medicinal materials with different shapes and sizes, the application provides a medicinal material screening and grading device.

[0006] The medicinal material screening and grading device provided by the application adopts the following technical scheme:

[0007] A medicinal material screening and grading device, comprising a rack, a strip gap screening mechanism and a mesh screening mechanism, the strip gap screening mechanism and the mesh screening mechanism are arranged on the rack in sequence from top to bottom, the strip gap screening mechanism comprises a frame and a plurality of first screening rollers which are arranged in parallel in the frame and have the same interval, the frame is fixedly connected to the rack, each first screening roller is fixedly connected with a sprocket at one end on the same side of the frame, each sprocket is simultaneously transmissionally connected with a chain, a driving motor is fixedly connected to the rack, and an output end of the driving motor is fixedly connected with one end of one of the first screening rollers away from the sprocket, and the other first screening roller is fixedly provided with eccentric wheels at two ends, and the eccentric wheels can hit the mesh screening mechanism to make it sway when rotating.

[0008] By adopting the technical scheme, the medicinal material raw materials needing to be screened are poured into the slot screening mechanism of the medicinal material screening and grading device, the first screening roller fixedly connected with the slot screening mechanism is driven to rotate along the central axis by the driving motor, thereby driving the sprocket connected with the first screening roller to rotate, the rotation of the sprocket drives the chain to rotate, thereby driving the chain wheel in transmission connection with the chain to rotate, the rotation of each chain wheel drives the rotation of each first screening roller, the granular medicinal materials fall onto the mesh screening mechanism along with the rotation of the first screening roller, and the strip-shaped medicinal materials remain on the first screening roller, so that the slot screening mechanism realizes preliminary screening and grading of the mixed medicinal material raw materials, the eccentric wheel connected with the first screening roller is driven to rotate along with the rotation of the first screening roller, and the outer edge of the eccentric wheel strikes the mesh screening mechanism to make the mesh screening mechanism shake along with the rotation of the eccentric wheel, the granular medicinal materials fall through the mesh screening mechanism along with the shaking of the mesh screening mechanism, and the granular medicinal materials remain on the upper surface of the mesh screening mechanism, so that the mesh screening mechanism realizes secondary screening and grading of the medicinal materials, the slot screening mechanism can screen the strip-shaped medicinal materials and the granular medicinal materials, and the applicability of the medicinal material screening machine to mixed medicinal materials with different shapes and sizes is improved.

[0009] Optionally, the mesh screening mechanism comprises a mesh screening plate, the mesh screening plate is fixedly provided with a striking portion outwardly extending close to the two sides of each eccentric wheel, and the bottom of the mesh screening plate is fixedly provided with a first spring downward around the periphery.

[0010] By adopting the technical scheme, the outer edge of the eccentric wheel strikes the striking portion of the mesh screening plate when the eccentric wheel rotates, and the mesh screening plate shakes up and down under the action of the first spring after being struck.

[0011] Optionally, the outer part of each first spring is sleeved with a telescopic air pipe.

[0012] By adopting the technical scheme, the telescopic air pipe is sleeved with the outer part of the first spring, so that the medicinal material particles are prevented from being stuck on the first spring and affecting the operation of the mesh screening plate.

[0013] Optionally, the eccentric wheel is provided with a sawtooth-shaped protruding portion at the position for striking the mesh screening mechanism, the upper surface of the striking portion is provided with a stripe, and the sawtooth-shaped protruding portion and the stripe of the striking portion cooperate to enable the mesh screening plate to shake horizontally.

[0014] By adopting the technical scheme, the mesh screening plate is driven in the rotating direction of the eccentric wheel under the action of the friction force generated by the sawtooth-shaped protruding portion and the stripe of the striking portion during the striking contact of the eccentric wheel and the striking portion, and the mesh screening plate has a tendency to restore to the original position under the action of the elastic force of the first spring, so that the mesh screening plate shakes horizontally.

[0015] Optionally, a second spring is fixedly connected to the side wall of the mesh screening plate, and the second spring is arranged along the horizontal shaking direction of the mesh screening plate, and one end of the second spring away from the mesh screening plate is fixedly connected to the rack.

[0016] By adopting the above technical scheme, the second spring is arranged in the horizontal movement direction of the mesh screening plate to play a buffering role, preventing the mesh screening plate from colliding with the rack when the mesh screening plate shakes horizontally under the action of inertia.

[0017] Optionally, the rack comprises a screening groove, the slot screen screening mechanism and the mesh screening mechanism are arranged in the screening groove, each eccentric wheel is located outside the side wall of the screening groove, two side walls of the screening groove close to the impact part are each provided with a through opening, the impact part extends to the outside of the side wall of the screening groove through the through opening, a limiting plate is slidably arranged on the through opening, the limiting plate is provided with a positioning hole, a positioning bolt is sleeved in the positioning hole, and a strip-shaped hole is formed in the side wall of the screening groove, which can make the positioning bolt slide up and down with the limiting plate.

[0018] By adopting the above technical scheme, the amplitude of the up-and-down oscillation of the mesh screening plate is controlled by sliding the limiting plate up and down and fixing the height position of the limiting plate by the positioning bolt.

[0019] Optionally, one side of the limiting plate in contact with the impact part is fixedly provided with a buffer layer.

[0020] By adopting the above technical scheme, the buffer layer can absorb the impact kinetic energy of the limiting plate when the mesh screening plate shakes up and down, reduce the direct impact of the mesh screening plate on the limiting plate, and protect the mesh screening plate to prolong the service life.

[0021] Optionally, one end of the screening groove is fixedly provided with a first discharge port and a second discharge port, the height of the lowest end of the first discharge port is lower than the height of the lower surface of the mesh screening plate, and the height of the lowest end of the second discharge port is flush with the height of the bottom wall of the screening groove.

[0022] By adopting the above technical scheme, the medicinal materials on the mesh screening plate are slid to the first discharge port for collection, the medicinal materials below the mesh screening plate screened by the mesh screening plate are slid to the second discharge port for collection, and the classification and collection of medicinal materials are realized.

[0023] Optionally, the slot screen screening mechanism further comprises a plurality of second screening rollers, a plurality of position adjusting grooves are formed in the frame along the direction of the connecting line of two adjacent first screening rollers, each second screening roller is slidably connected to the frame, and the two ends of one second screening roller are located in the corresponding position adjusting grooves.

[0024] By adopting the technical scheme, the position of the second screening roller is changed by sliding in the position adjusting groove, the gap of each first screening roller and the second screening roller is adjusted, and the gap of the slot screen screening mechanism is adjusted according to the screening requirement of the medicine material of different sizes.

[0025] Optionally, the rack further comprises a support, the support is fixedly provided with a lifting mechanism, and a free end of the lifting mechanism is hingedly connected to the bottom of the screening groove.

[0026] By adopting the technical scheme, the screening groove is adjusted to be in an inclined state by the lifting mechanism, so that the medicine material is conveniently slid to the first discharge port and the second discharge port, and the height of the screening groove is conveniently adjusted according to the different heights of the discharge ports of different medicine processing equipment, so that the different high medicine processing equipment is adapted.

[0027] To sum up, the present application has at least one of the following beneficial technical effects:

[0028] 1. Pour the medicine material to be screened into the slot screen screening mechanism of the medicine screening and grading device, drive the first screening roller fixedly connected thereto to rotate along the central axis by the driving motor, drive the sprocket connected thereto to rotate, drive the chain wheel in transmission connection therewith to rotate by the rotation of the sprocket, drive the rotation of each first screening roller by the rotation of each chain wheel, and the granular medicine falls onto the mesh screen mechanism along with the rotation of the first screening roller, while the strip-shaped medicine remains above the screening roller, so that the slot screen screening mechanism realizes preliminary screening and grading of the mixed medicine material, the eccentric wheel connected with the first screening roller is driven to rotate at the same time, the outer edge of the eccentric wheel hits the mesh screen mechanism to make it shake when the eccentric wheel rotates, the medicine with smaller particles falls through the mesh screen mechanism along with the shaking of the mesh screen mechanism, and the medicine with larger particles remains on the upper surface of the mesh screen mechanism, so that the mesh screen mechanism realizes secondary screening and grading of the medicine, the slot screen screening mechanism can screen the strip-shaped medicine and the granular medicine, and the applicability of the medicine screening machine to mixed medicine with different shapes and sizes is improved.

[0029] 2. The outer edge of the eccentric wheel hits the impact part of the mesh screen plate when the eccentric wheel rotates, and the mesh screen plate shakes up and down under the action of the first spring after being hit.

[0030] 3. The amplitude of the up-and-down oscillation of the mesh screen plate is controlled by sliding the limiting plate up and down and fixing the height position of the limiting plate by the positioning bolt. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0032] Figure 2 is a top view of an embodiment of the present application;

[0033] Figure 3 is Figure 2 a sectional view.

[0034] In the figure, 1, rack; 101, screening groove; 1011, through port; 1012, limiting plate; 1013, strip-shaped hole; 1014, first discharge port; 1015, second discharge port; 1016, first chute; 1017, second chute; 102, support; 1021, lifting mechanism; 2, slot screen screening mechanism; 201, frame; 202, first screening roller; 203, chain wheel; 204, chain; 205, driving motor; 206, eccentric wheel; 207, second screening roller; 208, position adjusting groove; 3, mesh screen screening mechanism; 301, mesh screen; 302, impact part; 303, first spring; 3031, telescopic air pipe; 304, second spring. DETAILED DESCRIPTION

[0035] The following will be described in detail in combination with the accompanying Figures 1-3 The application is further described in detail.

[0036] The embodiment of the application discloses a medicinal material screening and grading device.

[0037] Reference Figures 1-3 A medicinal material screening and grading device, comprising a rack 1, a slot screen screening mechanism 2 and a mesh screen screening mechanism 3, the rack 1 comprises a support 102 and a screening groove 101, the support 102 is fixedly provided with a lifting mechanism 1021, the lifting mechanism 1021 is four hydraulic cylinders arranged at four corners of the support 102, the groove bottom of the screening groove 101 is fixedly connected with free ends of the hydraulic cylinders, the slot screen screening mechanism 2 is arranged in the screening groove 101, the mesh screen screening mechanism 3 is arranged in the screening groove 101 and located directly below the slot screen screening mechanism 2, the whole device is placed at a discharge port of a medicinal material processing equipment, the lifting mechanism 1021 is adjusted so that the screening groove 101 is at a height suitable for the discharge port of the medicinal material processing equipment, medicinal materials are poured from the discharge port of the medicinal material processing equipment into the screening groove 101 and then pass through the slot screen screening mechanism 2 and the mesh screen screening mechanism 3 to be preliminarily screened and graded and secondarily screened and graded, the slot screen screening mechanism 2 and the mesh screen screening mechanism 3 operate simultaneously to complete the preliminary screening and grading and the secondary screening and grading at one time.

[0038] The slotting screening mechanism 2 comprises a frame 201, a plurality of first screening rollers 202 and a plurality of second screening rollers 207, the plurality of first screening rollers 202 are arranged in parallel and at the same interval and are rotationally connected in the frame 201, the plurality of second screening rollers 207 are arranged in the frame 201 at intervals with the second screening rollers 207, the frame 201 is provided with a position adjusting groove 208, the position adjusting groove 208 is extended from the connection position of the previous first screening roller 202 and the frame 201 to the position one-half away from the connection position of the next first screening roller 202 and the frame 201, the end of the second screening roller 207 is slidingly connected in the position adjusting groove 208, in the first state, the second screening roller 207 is in close contact with the previous first screening roller 202, in the second state, the second screening roller 207 is slidingly adjusted to the position one-half away from the next first screening roller 202, when it is needed to increase the slot gap of the slotting screening mechanism 2, the first state is adjusted, when it is needed to reduce the slot gap of the slotting screening mechanism 2, the second state is adjusted.

[0039] The two ends of the first screening roller 202 penetrate the frame 201 and extend to the outside of the side wall of the screening groove 101 at the connection position of the frame 201, one end of the plurality of first screening rollers 202 extending to the outside of the same side wall of the screening groove 101 is fixedly connected with a chain wheel 203, a plurality of chain wheels 203 are simultaneously drivingly connected with a chain 204, the end of the first screening roller 202 located at the edge of the frame 201 and away from the chain wheel 203 is fixedly connected with a driving motor 205, the two ends of the first screening roller 202 located at the middle position are respectively fixedly provided with eccentric wheels 206, the outer edge of the eccentric wheel 206 is provided with a sawtooth-shaped protrusion, the chain wheel 203, the driving motor 205 and the eccentric wheel 206 are all located outside the side wall of the screening groove 101, the side wall below the screening groove 101 is provided with an opening 1011, the side wall at the opening 1011 is provided with a limiting plate 1012 slidingly connected upward and downward, the limiting plate 1012 is provided with a positioning hole and a positioning bolt sleeved in the positioning hole, the side wall of the screening groove 101 is provided with a strip-shaped hole 1013 for moving and positioning the positioning bolt.

[0040] The mesh screening mechanism 3 comprises a mesh screening plate 301, a first spring 303 fixedly connected vertically downward around the periphery of the mesh screening plate 301, and a second spring 304 horizontally arranged along the horizontal movement direction of the mesh screening plate 301 and fixedly connected with the mesh screening plate 301 at one end, the first spring 303 is sleeved with an extendable air pipe 3031 outside, the end of the first spring 303 away from the mesh screening plate 301 is fixedly connected to the bottom wall of the screening groove 101, the end of the second spring 304 away from the mesh screening plate 301 is fixedly connected to the side wall of the screening groove 101, the mesh screening plate 301 is fixedly provided with a striated impact portion 302 extending outward at two sides close to the eccentric wheel 206, the impact portion 302 extends to the outside of the side wall of the screening groove 101 through the through hole 1011 and is located directly below the eccentric wheel 206, a limiting plate 1012 is located above the impact portion 302 and the bottom surface of the limiting plate 1012 abuts against the upper surface of the impact portion 302, a buffer layer is fixedly arranged at the abutting position of the limiting plate 1012 and the impact portion 302, the buffer layer is made of high-resilience sponge, and when the eccentric wheel 206 rotates, the outer edge of the eccentric wheel 206 strikes the impact portion 302 to shake the mesh screening plate 301.

[0041] One end of the screening groove 101 is fixedly provided with a first discharge port 1014 and a second discharge port 1015, the lower end of the end of the mesh screening plate 301 close to the first discharge port 1014 is provided with a first sliding groove 1016 fixedly connected with the side wall of the screening groove 101, the first sliding groove 1016 extends to the first discharge port 1014, and the entire mesh screening plate 301 is provided with a second sliding groove 1017 fixedly connected with the side wall of the screening groove 101 below, and the second sliding groove 1017 extends to the second discharge port 1015.

[0042] The implementation principle of the medicine screening and grading device is as follows: the lifting mechanism 1021 is adjusted to make the screening groove 101 be located at a suitable height position below the discharge port of the medicine processing equipment, the driving motor 205 is started to drive the slot screening mechanism 2 and the mesh screening mechanism 3 to operate, the mixed medicine with different shapes and sizes is subjected to primary screening and grading and secondary screening and grading, and after the screening is completed, the lifting mechanism 1021 is adjusted to make the screening groove 101 be in an inclined state, and the medicine subjected to the screening and grading is collected from the first discharge port 1014 and the second discharge port 1015, so that the strip medicine is screened and the granular medicine is screened, and the applicability of the medicine screening machine to the mixed medicine with different shapes and sizes is improved.

[0043] The embodiments of the specific embodiment are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A medicinal material screening and grading device, comprising a frame (1), a slotted sieve mechanism (2), and a mesh sieve mechanism (3), characterized in that: The slotted sieving mechanism (2) and the mesh sieving mechanism (3) are arranged sequentially from top to bottom on the frame (1). The slotted sieving mechanism (2) includes a frame (201) and multiple first sieving rollers (202) arranged parallel to each other and spaced at equal intervals within the frame (201). The frame (201) is fixedly connected to the frame (1). A sprocket (203) is fixedly connected to one end of each first sieving roller (202) on the same side of the frame (201). Each sprocket (203) is simultaneously connected to a chain (204). A drive motor (205) is fixedly connected to the frame (1). The output end of the drive motor (205) is connected to one of the first sieving rollers (202). 02) The end away from the sprocket (203) is fixedly connected, wherein the other first screening roller (202) is fixedly provided with eccentric wheels (206) at both ends. When the eccentric wheels (206) rotate, they can impact the mesh screening mechanism (3) to make it shake. The mesh screening mechanism (3) includes a mesh screening plate (301). The mesh screening plate (301) is fixedly provided with impact parts (302) extending outward from both sides near each eccentric wheel (206). The bottom of the mesh screening plate (301) is fixedly provided with a first spring (303) along the periphery. The end of the first spring (303) away from the mesh screening plate (301) is fixedly connected to the frame (1). The wheel (206) is provided with a serrated protrusion at the part used to impact the mesh screening mechanism (3). The upper surface of the impact part (302) is provided with stripes. The serrated protrusion and the stripes of the impact part (302) cooperate to make the mesh screening plate (301) swing horizontally. A second spring (304) is fixedly connected to the side wall of the mesh screening plate (301). The second spring (304) is arranged along the horizontal swing direction of the mesh screening plate (301). The end of the second spring (304) away from the mesh screening plate (301) is fixedly connected to the frame (1). The frame (1) includes a screening trough (101), the slotted screening mechanism (2), and the mesh screening machine. The structure (3) is arranged in the screening tank (101), and each of the eccentric wheels (206) is located outside the side wall of the screening tank (101). The screening tank (101) has a through opening (1011) on both side walls near the impact part (302). The impact part (302) extends through the through opening (1011) to the outside of the side wall of the screening tank (101). A limiting plate (1012) is slidably arranged at the through opening (1011). The limiting plate (1012) has a positioning hole. A positioning bolt is fitted in the positioning hole. A strip hole (1013) is provided on the side wall of the screening tank (101) to allow the positioning bolt to slide up and down with the limiting plate (1012).The limiting plate (1012) is located above the impact part (302), and the bottom surface of the limiting plate (1012) abuts against the upper surface of the impact part (302).

2. The medicinal material screening and grading device according to claim 1, characterized in that: Each of the first springs (303) is fitted with a telescopic air duct (3031).

3. The medicinal material screening and grading device according to claim 1, characterized in that: A buffer layer is fixedly provided on the side of the limiting plate (1012) that contacts the impact part (302).

4. The medicinal material screening and grading device according to claim 1, characterized in that: One end of the screening trough (101) is fixedly provided with a first discharge port (1014) and a second discharge port (1015). The height of the lowest end of the first discharge port (1014) is lower than the height of the lower plate surface of the mesh screening plate (301), and the height of the lowest end of the second discharge port (1015) is flush with the height of the bottom wall of the screening trough (101).

5. The medicinal material screening and grading device according to claim 1, characterized in that: The slotted screening mechanism (2) also includes multiple second screening rollers (207). Multiple adjustment grooves (208) are provided on the frame (201) along the line connecting two adjacent first screening rollers (202). Each second screening roller (207) is slidably connected in the frame (201), and the two ends of a second screening roller (207) are respectively located in the corresponding adjustment grooves (208).

6. The medicinal material screening and grading device according to claim 1, characterized in that: The frame (1) also includes a support (102), on which a lifting mechanism (1021) is fixedly installed. The free end of the lifting mechanism (1021) is hinged to the bottom of the screening trough (101).

Images