Pill screening and sorting device

Abstract

The utility model discloses a pill screening and sorting device which comprises a sorting cylinder, a plurality of upper screening hole areas are arranged on the sorting cylinder, and a plurality of first sorting holes are formed in the screening hole areas. The device further comprises a base plate matched with the sorting cylinder, a plurality of lower screening hole areas corresponding to the upper screening hole areas are formed in the base plate, and a plurality of second sorting holes capable of being overlapped with the first sorting holes are formed in the lower screening hole areas. The sorting cylinder is rotationally connected to the base plate; a motor for driving the sorting cylinder to rotate is mounted at the bottom of the base plate; the top of an output shaft of the motor is fixedly connected with a mounting seat, the bottom of the mounting seat is fixedly connected with a fixed shaft, and the top of the fixed shaft is rotationally connected with a shifting mechanism; the material stirring mechanism comprises a center sleeve rotationally connected to the fixing shaft, and a plurality of stirring plates are fixedly connected to the outer side wall of the center sleeve. According to the device, the pills can be sorted only by rotating the sorting cylinder in a slow and mild mode and matching with the shifting plate, the sorting action is mild, and a large number of pills cannot be damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of pill screening, and in particular relates to a pill screening and sorting device. Background Art

[0002] The dosage forms of drugs are mainly divided into liquid preparations, solid preparations and gas preparations. Among them, liquid preparations and solid preparations are the most commonly used in the industry. The main reason is that liquid preparations and solid preparations are more convenient to take and use.

[0003] Pills are a type of solid preparation, spherical in shape. During the pill production process, after being formed by processing equipment, the pills need to be sorted to identify qualified pills with a composite particle size. Unqualified pills are removed through screening, specifically to remove pills with excessively large or small particles, such as broken pellets. Only those with acceptable particle sizes are screened and then processed to obtain the finished product.

[0004] However, current sorting equipment such as vibrating screens and rotary screens cannot screen out pills with too large and too small particle sizes in the material at one time during the screening process.

[0005] Moreover, in the screening process of screening devices such as vibrating screens and shaking screens, the spherical pills roll too widely, resulting in violent collisions between the pills, which in turn leads to a high breakage rate during screening. That is, normal pills are damaged during the screening process due to the mutual expansion between the pills and the screen body, as well as between the pills themselves. Utility Model Content

[0006] Based on the above background, the purpose of this utility model is to provide a pill screening and sorting device.

[0007] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0008] A pill screening and sorting device comprises a sorting cylinder, wherein the sorting cylinder is provided with a plurality of upper sieve hole areas, and the sieve hole areas are provided with a plurality of first sorting holes;

[0009] The pill screening and sorting device further comprises a base plate cooperating with the sorting cylinder, the base plate being provided with a plurality of lower sieve hole areas corresponding to the upper sieve hole areas, and the lower sieve hole areas being provided with a plurality of second sorting holes that can overlap with the first sorting holes;

[0010] The sorting drum is rotatably connected to the base plate, and a motor for driving the sorting drum to rotate is installed at the bottom of the base plate;

[0011] The top of the output shaft of the motor is fixedly connected to a mounting seat fixedly installed at the bottom position of the sorting drum, the bottom of the mounting seat is fixedly connected to a fixed shaft, and the top of the fixed shaft is rotatably connected to a material digging mechanism;

[0012] The material shifting mechanism comprises a central sleeve rotatably connected to a fixed shaft, and a plurality of shifting plates are fixedly connected to the outer side wall of the central sleeve.

[0013] Preferably, a bearing is fixedly connected inside the center sleeve, and the fixed shaft is fixedly connected to the inner ring of the bearing.

[0014] Preferably, the dial plate is integrally formed with a downwardly protruding curved convex portion.

[0015] Preferably, a plurality of sorting barrels communicating with the lower sieve hole area are fixedly connected to the bottom of the base plate.

[0016] Preferably, the bottom of the base plate is slidably connected to a bottom screen plate;

[0017] The bottom sieve plate is provided with a plurality of bottom sieve hole areas corresponding to the sorting barrels, and the bottom sieve hole areas are provided with a plurality of bottom sieve holes.

[0018] Preferably, the bottom screen plate is mounted on the bottom of the base plate via a plurality of spring sliding connectors;

[0019] The spring sliding connection comprises a sliding rod fixedly connected to the bottom position of the base plate, a spring is sleeved on the sliding rod, and both ends of the spring are respectively fixedly connected to the side walls of the base plate and the bottom screen plate facing each other.

[0020] Preferably, a plurality of cylinders are fixedly connected to the bottom of the base plate, and the piston rods of the cylinders are fixedly connected to the top of the bottom screen plate.

[0021] Preferably, the first sorting holes and the second sorting holes have the same aperture size, and the aperture of the bottom sieve hole is smaller than the aperture of the second sorting hole.

[0022] Preferably, the bottom of the dial plate is spaced apart from the top of the sorting barrel.

[0023] The utility model has the following beneficial effects:

[0024] The device disclosed in the present invention can separate large and small pills, as well as pill debris, in a single sorting operation. Furthermore, the aforementioned method eliminates the need for vibrating or swinging screening, thereby resolving the drawback of traditional vibrating or swinging screening methods, which can lead to significant damage to the pills. The device disclosed in the present invention only requires the slow and gentle rotation of the sorting drum and the cooperation of the paddle to sort the pills. Furthermore, the sorting action is gentle and does not significantly damage the pills. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0027] Figure 2 For the embodiment of the utility model Figure 1 A structural diagram from another perspective;

[0028] Figure 3 This is a schematic diagram of the structure in which the sorting barrel is fixedly connected to the base plate in an embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of the dispersed structure in an embodiment of the present utility model;

[0030] Figure 5 For the embodiment of the utility model Figure 1 Top view in .

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0035] Example 1

[0036] like Figure 1-5 As shown, a pill screening and sorting device includes a sorting cylinder 1, on which a plurality of upper sieve hole areas (the shape of the upper sieve hole areas is trapezoidal) are provided, and a plurality of first sorting holes 11 (trapezoidal distribution) are opened on the sieve hole areas.

[0037] The pill screening and sorting device also includes a base plate 4 that cooperates with the sorting cylinder 1. The base plate 4 is provided with a plurality of lower sieve aperture areas (trapezoidal in shape) corresponding to the upper sieve aperture areas. The lower sieve aperture areas are provided with a plurality of second sorting apertures 411 (the second sorting apertures 411 are arranged in a trapezoidal pattern) that can overlap with the first sorting apertures 11. The first sorting apertures 11 and the second sorting apertures 411 are of the same size.

[0038] The sorting drum 1 is rotatably connected to a base plate 4, the bottom of which is mounted a motor 3 that drives the rotation of the sorting drum 1. Specifically, the top of the motor 3's output shaft is fixedly connected to a mounting base 31 fixedly mounted at the bottom of the sorting drum 1. The bottom of the mounting base 31 is fixedly connected to a fixed shaft (the fixed shaft is rotatably connected to the base plate 4. As in the existing method, a bearing is mounted at the center of the base plate 4, and the inner ring of the bearing is fixedly mounted on the fixed shaft). The top of the fixed shaft is rotatably connected to the material dispensing mechanism.

[0039] The material-diverting mechanism includes a central sleeve 21 rotatably connected to a fixed shaft, and a plurality of diverter plates 22 are fixedly connected to the outer wall of the central sleeve 21. The shape of the diverter plates 22 is as follows: the shape of the diverter plates 22 is curved (that is, the diverter plates 22 are integrally formed with a downwardly protruding curved convex portion), and the bottom of the diverter plates 22 is spaced apart from the top of the sorting drum 1.

[0040] A bearing 23 is fixedly connected inside the center sleeve 21 , and the fixed shaft is fixedly connected to the inner ring of the bearing 23 .

[0041] During operation, the sorting drum 1 is first selected under the drive of the motor 3, and the pills placed in the sorting drum 1 roll in the sorting drum 1 during the rotation. Due to the obstruction of the paddle 22, the rolling speed of the pills will not increase indefinitely, resulting in violent collisions between the pills.

[0042] Furthermore, when a large number of pills are being fed, the paddle plate 22 and the center sleeve 21 are mounted on the fixed shaft via bearings, so the paddle plate 22 rotates relatively slowly, preventing the paddle plate 22 from striking the pills. When a large number of pills are present, the accumulated pills collide with the paddle plate 22. At this point, the paddle plate 22 rotates slightly, spreading the pills within the sorting cylinder 1. After spreading, the pills are discharged from the first sorting hole 11 through the second sorting hole 411, while the larger pills are retained. This method improves the pill sorting efficiency while protecting the pills.

[0043] To intercept pills of mixed particle sizes, several sorting barrels 41, connected to the lower sieve area, are fixedly connected to the bottom of the base plate 4. Small-sized pills, such as crushed pills, and qualified pills are discharged from the second sorting holes 411 and enter the sorting barrels 41 (the shape of the sorting barrels 41 is the same as that of the upper and lower sieve areas, both being trapezoidal).

[0044] During the screening process, when the upper sieve hole area and the lower sieve hole area overlap, they are screened and sorted, and when they are staggered, the sorting is stopped, so that a large number of pills can be sorted and processed one by one.

[0045] Example 2

[0046] like Figure 1-5 As shown, based on the structure of Example 1, in order to separate qualified pills from small-sized pills (including broken pills and pill fragments) in the sorting barrel 41, this embodiment has a bottom sieve plate 5 slidably connected to the bottom of the base plate 4. A circular hole is opened in the center of the bottom sieve plate 5, and the bottom of the motor 3 protrudes from the circular hole. Through the circular hole, the bottom sieve plate 5 slides on the bottom protrusion of the motor 3.

[0047] Similarly, the bottom sieve plate 5 is provided with a plurality of bottom sieve aperture areas (trapezoidal in shape) corresponding to the sorting barrel 41. These bottom sieve aperture areas are provided with a plurality of bottom sieve apertures 511. The bottom sieve apertures 511 are smaller than the particle size of normal pills, but larger than the particle size of crushed small-sized pills. That is, the first sorting aperture 11 and the second sorting aperture 411 have the same aperture size, while the bottom sieve aperture 511 is smaller than the aperture of the second sorting aperture 411.

[0048] In the pill sorting process achieved by the above method, when the upper sieve hole area and the lower sieve hole area overlap, an appropriate amount of pills enter the sorting barrel 41, while small-sized pills and pill fragments are discharged from the bottom sieve hole 511, and normal pills are retained between the sorting barrel 41 and the bottom sieve plate 5.

[0049] In order to discharge normal pills after sorting, the above-mentioned bottom sieve plate 5 is installed at the bottom of the base plate 4 through a number of spring sliding connectors; the spring sliding connector includes a slide rod 51 fixedly connected to the bottom position of the base plate 4, and a spring 52 is sleeved on the slide rod 51. The two ends of the spring 52 are respectively fixedly connected to the side walls of the base plate 4 and the bottom sieve plate 5 facing each other.

[0050] At the same time, a plurality of cylinders 53 are fixedly connected to the bottom of the base plate 4 , and the piston rods of the cylinders 53 are fixedly connected to the top of the bottom screen plate 5 .

[0051] After a period of sorting, the air cylinder 53 is turned on. At this time, the air cylinder 53 pushes the bottom sieve plate 5 to separate from the bottom of the sorting barrel 41, and the pills fall onto the bottom sieve plate 5. The rolling pills are discharged and collected along the bottom sieve plate 5. Subsequently, under the elastic restoring force of the spring, the bottom sieve plate 5 returns to its original position and blocks the bottom of the sorting barrel 41.

[0052] This method achieves single-stage sorting to separate large and small pills, as well as pill debris, without requiring vibrating or swinging sieving. This solves the problem of traditional vibrating or swinging sieving methods causing significant damage to the pills due to the intense sieving. The device disclosed in the present invention only requires the sorting drum 1 to rotate slowly and gently, in conjunction with the paddle 22, to sort the pills. Furthermore, the sorting action is gentle and does not damage the pills significantly.

[0053] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A pill screening and sorting device, characterized in that: It comprises a sorting cylinder, wherein the sorting cylinder is provided with a plurality of upper sieve hole areas, and the sieve hole areas are provided with a plurality of first sorting holes; The pill screening and sorting device further comprises a base plate cooperating with the sorting cylinder, the base plate being provided with a plurality of lower sieve hole areas corresponding to the upper sieve hole areas, and the lower sieve hole areas being provided with a plurality of second sorting holes that can overlap with the first sorting holes; The sorting drum is rotatably connected to the base plate, and a motor for driving the sorting drum to rotate is installed at the bottom of the base plate; The top of the output shaft of the motor is fixedly connected to a mounting seat fixedly installed at the bottom position of the sorting drum, the bottom of the mounting seat is fixedly connected to a fixed shaft, and the top of the fixed shaft is rotatably connected to a material digging mechanism; The material shifting mechanism comprises a central sleeve rotatably connected to a fixed shaft, and a plurality of shifting plates are fixedly connected to the outer side wall of the central sleeve.

2. The pill screening and sorting device according to claim 1, characterized in that: A bearing is fixedly connected inside the center sleeve, and the fixed shaft is fixedly connected to the inner ring of the bearing.

3. The pill screening and sorting device according to claim 1, characterized in that: The shift plate is integrally formed with a downwardly protruding curved convex portion.

4. The pill screening and sorting device according to claim 1, characterized in that: The bottom of the base plate is fixedly connected with a plurality of sorting barrels connected with the lower sieve hole area.

5. The pill screening and sorting device according to claim 4, characterized in that: The bottom of the base plate is slidably connected to a bottom screen plate; The bottom sieve plate is provided with a plurality of bottom sieve hole areas corresponding to the sorting barrels, and the bottom sieve hole areas are provided with a plurality of bottom sieve holes.

6. The pill screening and sorting device according to claim 5, characterized in that: The bottom screen plate is mounted on the bottom of the base plate through a plurality of spring sliding connectors; The spring sliding connection comprises a sliding rod fixedly connected to the bottom position of the base plate, a spring is sleeved on the sliding rod, and both ends of the spring are respectively fixedly connected to the side walls of the base plate and the bottom screen plate facing each other.

7. The pill screening and sorting device according to claim 6, characterized in that: The bottom of the base plate is fixedly connected with a plurality of cylinders, and the piston rods of the cylinders are fixedly connected to the top of the bottom screen plate.

8. The pill screening and sorting device according to claim 5, characterized in that: The first sorting holes and the second sorting holes have the same aperture size, and the aperture of the bottom sieve hole is smaller than the aperture of the second sorting hole.

9. The pill screening and sorting device according to claim 1, characterized in that: The bottom of the dial plate is spaced apart from the top of the sorting cylinder.

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