Medicine powder screening device

Abstract

A medicine powder screening device comprises a supporting frame, a screening mechanism and a bearing mechanism. The screening mechanism comprises a screening frame installed on the supporting frame, a plurality of baffles arranged at intervals are arranged in the screening frame in the circumferential direction, a plurality of turning plates rotating around the axis of the screening frame are arranged on the inner sides of the baffles and used for turning medicine powder, and a push plate is rotationally installed at one end of each baffle and used for pushing large-particle powder to the outer side of the corresponding baffle. A circle is defined by the baffle and the push plate, and a collecting frame moving in the radius direction of the screen frame and a push block moving in the circumferential direction are further arranged on the outer side of the baffle and used for collecting large-particle powder. The bearing mechanism comprises a temporary storage frame arranged above the screen frame, and a plurality of discharging openings are formed in the bottom of the temporary storage frame in the circumferential direction and used for putting medicine powder into the screen frame. According to the screening device, screening operation can be conducted uninterruptedly, large-particle impurities can be separated and transferred, the production efficiency is improved, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drug preparation, in particular to a drug powder screening device. Background Art

[0002] When using Chinese medicinal materials to produce medicines, it is usually necessary to dry, crush, screen, and other operations on these medicinal materials, and then the drug powder is subjected to subsequent processing technology. In order to improve the quality of the medicine and ensure the safety of the medicine, it is necessary to remove large particles of impurities and foreign matter in the drug powder. Therefore, the screening process is an important process in drug production. In the prior art, a vibrating screen is usually used to directly screen the drug powder. However, during screening, some large particles of medicine and foreign matter, impurities, etc. will remain on the screen. After a long period of screening, foreign matter accumulates more and more, which will affect the normal screening effect. Therefore, it is necessary to clean up the foreign matter after screening for a period of time. When cleaning foreign matter, the screening operation needs to be suspended first, which affects the production efficiency. Especially when carrying out large-scale production, it is necessary to clean up the foreign matter on the screen many times, which is not conducive to improving production efficiency. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the related prior art, the present application provides a pharmaceutical powder screening device that can perform screening operations uninterruptedly and achieve the separation and transfer of large particle impurities, thereby improving production efficiency and having strong practicality.

[0004] In order to achieve the above purpose, the utility model adopts the following technologies:

[0005] A medicine powder screening device comprises: a support frame, a screening mechanism and a bearing mechanism.

[0006] The screening mechanism includes a screen frame installed on a supporting frame, and a plurality of baffles arranged at intervals in the circumferential direction are provided in the screen frame, and a plurality of flip plates rotating around the axis of the screen frame are provided on the inner side of the baffle for flipping the pharmaceutical powder. A push plate is rotatably installed at one end of the baffle for pushing the large-particle powder to the outside of the baffle. When used, the baffle and the push plate form a circle, and a collecting frame moving along the radial direction of the screen frame and a push block moving along the circumferential direction are also provided on the outside of the baffle for collecting the large-particle powder; the bearing mechanism includes a temporary storage frame arranged above the screen frame, and a plurality of discharge ports are provided at the bottom of the temporary storage frame along the circumferential direction for putting the pharmaceutical powder into the screen frame.

[0007] Furthermore, one end of the flap plate is connected to a connecting ring, the connecting ring is sleeved on a rotating shaft, the rotating shaft passes through the center of the screen frame, and is connected to an output end of the first power device.

[0008] Furthermore, an arc-shaped portion is provided at one end of the baffle, a connecting shaft is provided on the inner side of the arc-shaped portion, the connecting shaft is installed on the screen frame, one end of the push plate is sleeved on the connecting shaft, and there is a rebound force between the push plate and the connecting shaft, a protrusion is provided at the upper end of the connecting shaft, and a baffle rod is provided on the bottom surface of the protrusion for abutting against the inner side of the push plate.

[0009] Furthermore, the baffle plate and the push plate are both arc-shaped, and the center of the circle faces the inner side of the screen frame. A triangular block is provided on the inner side of the other end of the push plate. When in use, the triangular block contacts the flip plate.

[0010] Furthermore, the screen frame is provided with a plurality of grooves along the circumferential direction, one side of the groove passes through the screen frame, and the other side of the groove is connected to the outside of the baffle, a bearing part is provided on the outside of the groove, and outlets are provided at both ends of the bearing part, the collecting frame is located in the groove and connected to the movable end of the telescopic rod, and the telescopic rod is installed on the bearing part.

[0011] Furthermore, the push block has an L-shaped cross-section, and the upper end is connected to the horizontal plate, the horizontal plate is sleeved on the support rod, the support rod is installed on the rotating ring, the rotating ring is rotatably installed on the screen frame, and the outer wall of the rotating ring is also provided with a tooth portion, the tooth portion meshes with the gear, the gear is sleeved on the transmission shaft, the transmission shaft is rotatably installed on the screen frame, and one end is connected to the output end of the second power device.

[0012] Furthermore, the screen frame is provided with a plurality of vertical rods, on which connecting rods are sleeved, a push rod is provided at the bottom of one end of the connecting rod facing the center of the screen frame, the push rod is in contact with the inner side of the push plate, a slide groove is provided at the other end of the connecting rod along its length direction, a moving rod is passed through the slide groove, the moving rod is installed on a support ring, the support ring is rotatably installed on a support frame, a positioning hole is provided on the support ring, and when in use, a positioning rod is passed through the positioning hole, and the upper end of the positioning rod is passed through the support frame.

[0013] Furthermore, a plurality of stirring plates are provided in the temporary storage frame along the circumferential direction, one end of the stirring plate is mounted on a sleeve, and the sleeve is connected to the rotating shaft.

[0014] The beneficial effect of the utility model is that when performing screening operations, large-particle medicines, impurities, etc. can be pushed through the push plate, and collected and transferred through the collection frame, so that the large-particle impurities can be separated and transferred during the uninterrupted screening operation, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 It is a three-dimensional schematic diagram of the screening mechanism of an embodiment of the present application.

[0018] Figure 3 for Figure 2 An enlarged schematic diagram of point A.

[0019] Figure 4 This is a schematic diagram of the baffle plate and the push plate of the embodiment of the present application forming a circle. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] like Figure 1-Figure 4 As shown, this example provides a drug powder screening device, including: a support frame 100, a screening mechanism 200, and a bearing mechanism 300.

[0022] The screening mechanism 200 includes a screen frame 201 mounted on the support frame 100. The bottom of the screen frame 201 is provided with screen holes to screen the drug powder. A plurality of baffles 202 are arranged at intervals along the circumferential direction in the screen frame 201. A plurality of flipping plates 203 rotating around the axis of the screen frame 201 are provided inside the baffle 202 to flip the drug powder. A push plate 204 is rotatably installed at one end of the baffle 202 to push the large-particle powder to the outside of the baffle 202. When in use, the baffle 202 and the push plate 204 form a A circle is formed, and a collecting frame 205 moving along the radial direction of the screen frame 201 and a pushing block 206 moving along the circumferential direction of the screen frame 201 are also provided on the outside of the baffle 202. The pushing block 206 is used to push large-particle powder, impurities, etc. into the collecting frame 205, and the collecting frame 205 is used to collect large-particle powder; the supporting mechanism 300 includes a temporary storage frame 301 arranged above the screen frame 201, and a plurality of discharge ports 302 are provided at the bottom of the temporary storage frame 301 along the circumferential direction for feeding pharmaceutical powder into the screen frame 201.

[0023] Specifically, one end of the flip plate 203 is connected to the connecting ring 207, the connecting ring 207 is sleeved on the rotating shaft 208, the rotating shaft 208 is passed through the center of the screen frame 201, and is connected to the output end of the first power device. The rotating shaft 208 is driven by the first power device to rotate, so that the flip plate 203 starts to flip the drug powder in the screen frame 201, thereby starting the screening operation.

[0024] Specifically, an arc portion 209 is provided at one end of the baffle plate 202, and a connecting shaft 210 is provided inside the arc portion 209. The connecting shaft 210 is installed on the screen frame 201, and one end of the push plate 204 is sleeved on the connecting shaft 210, and there is a rebound force between the push plate 204 and the connecting shaft 210. A protrusion 211 is provided at the upper end of the connecting shaft 210, and a blocking rod 212 is provided on the bottom surface of the protrusion 211, which is used to abut against the inner side of the push plate 204. When the screening operation is performed, As the flip plate 203 rotates, the flip plate 203 will contact the inner side of the push plate 204 and force the push plate 204 to rotate around the axis of the connecting shaft 210, thereby pushing part of the drug powder to the outside of the baffle 202. At this time, large particles of impurities, foreign matter, etc. will also be pushed to the outside of the baffle 202. After the flip plate 202 is no longer released from the push plate 204, the push plate 204 will move back under the action of the rebound force until it abuts against the blocking rod 212.

[0025] Specifically, the baffle 202 and the push plate 204 are both arc-shaped, and the center of the circle is facing the inner side of the screen frame 201. A triangular block 213 is provided on the inner side of the other end of the push plate 204. When the flip plate 203 pushes the push plate 204 to rotate, the triangular block 213 contacts the flip plate 203, and when the push plate 204 is pushed until its central axis is coaxial with the central axis of the baffle 202, the end of the flip plate 203 contacts the end of the triangular block 213, so that an annular area is formed between the baffle 202, the push plate 204 and the inner wall of the screen frame 201, so as to collect large particles of impurities, foreign matter, etc.

[0026] Specifically, the push block 206 has an L-shaped cross section, and the upper end is connected to the cross plate 217, the cross plate 217 is sleeved on the support rod 218, the support rod 218 is installed on the rotating ring 219, the rotating ring 219 is rotatably installed on the screen frame 201, and the outer wall of the rotating ring 219 is also provided with a tooth portion 220, the tooth portion 220 is meshed with a gear 221, the gear 221 is sleeved on the transmission shaft 222, the transmission shaft 222 is rotatably installed on the screen frame 201, and one end is connected to the output end of the second power device, through the second power device The force device drives the transmission shaft 222 to rotate back and forth, and the transmission shaft 222 drives the gear 221 to rotate back and forth, thereby driving the push block 206 to move back and forth along the circumferential direction of the screen frame 201, thereby pushing large particles of impurities, foreign matter, etc. into the collection frame 205. The large particles of impurities, etc. can be transferred by moving the collection frame 205 out, and the back and forth movement of the push block 206 can also push the required pharmaceutical powder through the sieve holes, avoiding the waste of pharmaceutical powder that meets the particle size standard by transferring it through the collection frame 205.

[0027] Specifically, the screen frame 201 is provided with a plurality of grooves 214 along the circumferential direction, one side of the groove 214 passes through the screen frame 201, and the other side of the groove 214 is connected to the outside of the baffle 202, a bearing portion 215 is provided on the outside of the groove 214, and outlets 216 are provided at both ends of the bearing portion 215. The collecting frame 205 is located in the groove 214 and connected to the movable end of the telescopic rod 231, and the telescopic rod 231 is installed on the bearing portion 215. After a part of the impurities are collected in the collecting frame 205, the collecting frame 205 is moved to the bearing portion 215 by the telescopic rod 231, and then the impurities in the collecting frame 205 are pushed into the outlet 216.

[0028] Specifically, in order to prevent the collecting frame 205 from pushing the drug powder into the groove 214 when it is located in the bearing portion 215, it is necessary to maintain the annular area formed between the baffle 202, the push plate 204 and the inner wall of the sieve frame 201 for a period of time. Therefore, a plurality of vertical rods 223 are further provided on the sieve frame 201. A connecting rod 224 is sleeved on the vertical rod 223. A push rod 225 is provided at the bottom of the end of the connecting rod 224 facing the center of the sieve frame 201. When it is necessary to move the collecting frame 205, the push rod 225 contacts the inner side of the push plate 204. The other end of the connecting rod 224 is provided with a slide groove 226 along its length direction. A moving rod 227 is passed through the slide groove 226. The moving rod 227 is mounted on a support ring 228. The support ring 228 is rotatably mounted on the support frame 100. At this time, rotating the support ring 228 can make the collecting frame 205 move along the slide groove 226. The push plate 204 is moved and the connecting rod 224 can be rotated around the axis of the vertical rod 223, so that the push rod 225 contacts the inner side of the push plate 204 and forces the push plate 204 to move until the push plate 204 and the baffle 202 form a circular ring, so that the outer side and the inner side of the push plate 204 and the baffle 202 are separated from each other, thereby preventing the drug powder from being pushed to the outside of the baffle 202, and a positioning hole 229 is provided on the support ring 228. When the baffle 202 and the push plate 204 form a circular ring, a positioning rod 230 is passed through the positioning hole 229, and the upper end of the positioning rod 230 is passed through the support frame 100, so that the support ring 228 can be clamped to prevent the push plate 204 from resetting under the action of the rebound force. After the collection frame 205 is moved back into the groove 214, the positioning rod 230 can be taken out from the positioning hole 229.

[0029] Specifically, a plurality of stirring plates 303 are provided in the temporary storage frame 301 along the circumferential direction. One end of the stirring plate 303 is mounted on a collar 304 , and the collar 304 is connected to the rotating shaft 208 . The stirring plate 303 can rotate to push the drug powder in the temporary storage frame 301 out of the discharge port 302 .

[0030] Since the above are only preferred embodiments of the present invention and are not intended to limit the present invention, it is obvious that those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A drug powder screening device, characterized in that: include: Support frame (100); The screening mechanism (200) comprises a screen frame (201) mounted on the support frame (100), wherein a plurality of baffles (202) arranged at intervals are provided in the screen frame (201) along a circumferential direction, a plurality of flipping plates (203) rotating around the axis of the screen frame (201) are provided inside the baffles (202) for flipping the pharmaceutical powder, a push plate (204) is rotatably mounted on one end of the baffle (202) for pushing large-particle powder to the outside of the baffle (202), and when in use, the baffle (202) and the push plate (204) form a circle, and a collecting frame (205) moving along the radial direction of the screen frame (201) and a push block (206) moving along the circumferential direction are also provided outside the baffle (202) for collecting large-particle powder; The supporting mechanism (300) comprises a temporary storage frame (301) arranged above the sieve frame (201), wherein a plurality of discharge ports (302) are arranged at the bottom of the temporary storage frame (301) along a circumferential direction for feeding drug powder into the sieve frame (201).

2. The drug powder screening device according to claim 1, characterized in that: One end of the flap plate (203) is connected to a connecting ring (207), the connecting ring (207) is sleeved on a rotating shaft (208), the rotating shaft (208) passes through the center of the screen frame (201), and is connected to the output end of the first power device.

3. The drug powder screening device according to claim 1, characterized in that: An arc-shaped portion (209) is provided at one end of the baffle plate (202), a connecting shaft (210) is provided inside the arc-shaped portion (209), the connecting shaft (210) is mounted on the screen frame (201), one end of the push plate (204) is sleeved on the connecting shaft (210), and there is a rebound force between the push plate (204) and the connecting shaft (210), a protrusion (211) is provided at the upper end of the connecting shaft (210), and a baffle rod (212) is provided on the bottom surface of the protrusion (211) for abutting against the inner side of the push plate (204).

4. The drug powder screening device according to claim 1, characterized in that: The baffle plate (202) and the push plate (204) are both arc-shaped, with the center of the circle facing the inside of the screen frame (201). A triangular block (213) is provided on the inside of the other end of the push plate (204). When in use, the triangular block (213) contacts the flip plate (203).

5. The drug powder screening device according to claim 1, characterized in that: The screen frame (201) is provided with a plurality of grooves (214) along the circumferential direction, one side of the groove (214) passes through the screen frame (201), and the other side of the groove (214) is connected to the outside of the baffle (202), a bearing portion (215) is provided on the outside of the groove (214), and both ends of the bearing portion (215) are provided with outlets (216), the collecting frame (205) is located in the groove (214) and is connected to the movable end of the telescopic rod (231), and the telescopic rod (231) is mounted on the bearing portion (215).

6. The drug powder screening device according to claim 1, characterized in that: The push block (206) has an L-shaped cross section, and the upper end is connected to a horizontal plate (217). The horizontal plate (217) is sleeved on a support rod (218). The support rod (218) is mounted on a rotating ring (219). The rotating ring (219) is rotatably mounted on the screen frame (201). The outer wall of the rotating ring (219) is further provided with a tooth portion (220). The tooth portion (220) meshes with a gear (221). The gear (221) is sleeved on a transmission shaft (222). The transmission shaft (222) is rotatably mounted on the screen frame (201) and one end of the transmission shaft is connected to an output end of a second power device.

7. The drug powder screening device according to claim 1, characterized in that: The screen frame (201) is also provided with a plurality of vertical rods (223), and connecting rods (224) are sleeved on the vertical rods (223). A push rod (225) is provided at the bottom of one end of the connecting rod (224) facing the center of the screen frame (201), and the push rod (225) contacts the inner side of the push plate (204). A slide groove (226) is provided at the other end of the connecting rod (224) along its length direction, and a moving rod (227) is passed through the slide groove (226). The moving rod (227) is installed on a support ring (228), and the support ring (228) is rotatably installed on the support frame (100). A positioning hole (229) is provided on the support ring (228). When in use, a positioning rod (230) is passed through the positioning hole (229), and the upper end of the positioning rod (230) is passed through the support frame (100).

8. The drug powder screening device according to claim 2, characterized in that: A plurality of stirring plates (303) are arranged in the temporary storage frame (301) along the circumferential direction, and one end of the stirring plate (303) is mounted on a sleeve ring (304), and the sleeve ring (304) is connected to the rotating shaft (208).

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