Vibration screening device for medicine preparation

Abstract

The utility model discloses a vibration screening device for medicine preparation, which comprises a shell, a screening assembly and a vibration assembly, the screening assembly comprises a screening plate and a stripper plate, a material containing disc is arranged below the stripper plate, the vibration assembly comprises a transmission rod and an eccentric vibrator, and the transmission rod is connected with the eccentric vibrator. The eccentric vibrator drives the transmission rod to reciprocate in the vertical direction, so that the two ends of the screening plate are driven to vibrate up and down synchronously, irregular tablets and tablet residues fall into the containing disc through holes of the screening disc, and therefore screening of the tablets in the screening plate is completed. The linear driving device drives the stripper plate to vertically move upwards in the direction of the screening plate, tablets clamped in holes of the screening plate are pushed out through the rubber columns on the end face of the stripper plate, the screening plate is prevented from being blocked, and the screening efficiency is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of drug preparation devices, and particularly relates to a vibration screening device for drug preparation. Background Art

[0002] Tablets are products made by mixing specific doses of drugs with other additives, which can facilitate patients to take drugs regularly and quantitatively. During the process of manufacturing tablets, due to the large production volume of industrial tablet preparation and a certain qualified product rate, there are often some tablets with irregular shapes or broken ones mixed in the produced tablets. In order to ensure the smooth progress of subsequent packaging operations of the tablets, it is necessary to remove the dregs mixed in the tablets to ensure the production quality of the tablets.

[0003] The existing material screening method is to fill the screening basket with tablets, and manually shake the material sieve to make the screened dregs and unqualified tablets pass through the sieve mesh and fall into the collection box, while the qualified tablets remain on the sieve. The screened tablets are transferred to the tablet collection box. This manual screening method of tablets has a high labor intensity and incomplete screening. Content of the Utility Model

[0004] Aiming at the technical defects in the background art, the utility model provides a vibration screening device for drug preparation, which solves the above technical problems and meets the actual needs. The specific technical solutions are as follows:

[0005] A vibration screening device for drug preparation includes a housing, a screening component and a vibration component. A screening chamber is arranged inside the housing. An inlet is arranged at the top of the housing and is communicated with the screening chamber. A screening component is arranged in the middle of the screening chamber. The screening component includes a screening plate and a blanking plate arranged below the screening plate. A material receiving tray integrated with the blanking plate is arranged below the blanking plate. The vibration component includes a vertically arranged transmission rod and an eccentric vibrator. One end of the transmission rod is connected to the end of the screening plate, and the other end is connected to the output end of the eccentric vibrator.

[0006] As an improvement of the above solution, a first connecting rod is arranged on the side of the blanking plate, and a linear driving device for driving the blanking plate to reciprocate towards the screening plate is arranged at the end of the first connecting rod.

[0007] As an improvement of the above solution, the blanking plate is composed of several parallel blanking rods, and several upward convex rubber cylinders are arranged on the blanking rods towards the screening plate.

[0008] As an improvement of the above solution, the screening plate is composed of several screening rods distributed in a crisscross manner. A baffle is arranged around the outer edge of the screening plate to form a screening groove. A second connecting rod is arranged at the end of the screening plate, and the end of the second connecting rod is connected to the transmission rod.

[0009] As an improvement of the above solution, the transmission rod includes a first transmission rod and a second transmission rod. A vertically arranged hollow sleeve is provided on the inner wall of the screening chamber. The first transmission rod is inserted into the hollow sleeve, and the top end is connected to the end of the screening plate.

[0010] As an improvement of the above solution, the bottom end of the first transmission rod is hinged to the top end of the second transmission rod, and the bottom of the second transmission rod is fixedly connected to the output end of the eccentric vibrator.

[0011] As an improvement of the above solution, the eccentric vibrator includes an eccentric bearing and a rotating motor. The output shaft of the rotating motor is inserted into the inner ring of the eccentric bearing, and the transmission rod is fixed to the outer ring of the eccentric bearing.

[0012] As an improvement of the above solution, the number of the eccentric bearings is two, both are sleeved on the output shaft of the rotating motor, and are respectively fixedly connected to the transmission rods at both ends of the screening plate.

[0013] The beneficial effects of the present utility model are as follows: The eccentric vibrator drives the transmission rod to reciprocate in the vertical direction, thereby driving the two ends of the screening plate to vibrate up and down synchronously. Irregular tablets and tablet residues fall through the holes of the screening plate into the material receiving tray, thus completing the screening of the tablets in the screening plate. The linear driving device drives the stripping plate to move vertically upward towards the screening plate direction, and the rubber column bodies on the end face of the stripping plate push out the tablets stuck in the holes of the screening plate, preventing the screening plate from being blocked and affecting the screening efficiency. Description of the Drawings

[0014] Figure 1 It is a right view of the internal structure of the present utility model.

[0015] Figure 2 It is a front view of the internal structure of the present utility model.

[0016] Figure 3 It is Figure 1 The schematic diagram of the structure of part A in

[0017] Figure 4 It is the schematic diagram of the eccentric bearing structure of the present utility model.

[0018] Figure 5 It is the schematic diagram of the screening plate structure of the present utility model.

[0019] Figure 6 This is a schematic structural diagram of the stripping plate of the present utility model.

[0020] Wherein: housing 1, screening chamber 101, feeding port 102, material receiving tray 103, hollow sleeve 104, screening assembly 2, screening plate 3, screening rod 301, baffle 302, second connecting rod 303, stripping plate 4, first connecting rod 401, stripping rod 402, rubber cylinder 403, vibration assembly 5, transmission rod 6, first transmission rod 601, second transmission rod 602, eccentric vibrator 7, eccentric bearing 701, rotating motor 702, linear driving device 8. Specific embodiments

[0021] The following combines the drawings with related embodiments to illustrate the implementation manners of the present utility model. The implementation manners of the present utility model are not limited to the following embodiments, and the related necessary components of the present utility model in the technical field should be regarded as well-known technologies in the technical field and can be known and mastered by those skilled in the technical field.

[0022] As Figures 1 to 6 shown, a vibration screening device for drug preparation includes a housing 1, a screening assembly 2 and a vibration assembly 5. A screening chamber 101 is provided inside the housing 1. A feeding port 102 communicating with the screening chamber 101 is provided at the top of the housing 1. A screening assembly 2 is provided in the middle of the screening chamber 101. The screening assembly 2 includes a screening plate 3 and a stripping plate 4 provided below the screening plate 3. A material receiving tray 103 integrated with the stripping plate is provided below the stripping plate 4. The vibration assembly 5 includes a vertically arranged transmission rod 6 and an eccentric vibrator 7. One end of the transmission rod 6 is connected to the end of the screening plate 3, and the other end is connected to the output end of the eccentric vibrator 7.

[0023] In the structure of the housing 1 of the present utility model, a feeding port 102 communicating with the screening chamber 101 is provided at the top of the housing 1. The feeding port 102 extends above the screening plate 3. The tablets to be screened are poured into the screening chamber 101 through the feeding port 102 and fall onto the screening plate 3 along the feeding port 102. A first transmission rod 601 is connected to the end of the screening plate 3. The vibration assembly 5 drives the first transmission rod 601 to drive the screening plate 3 to vibrate up and down, so as to complete the screening of the tablets on the screening plate 3. The screened residues fall into the material receiving tray 103. A hollow sleeve 104 for limiting is provided on the inner wall of the housing 1. The first transmission rod 601 reciprocates in the vertical direction under the limiting action of the hollow sleeve 104, thereby driving the screening plate 3 to shake up and down.

[0024] In the structure of the screening component 2 of the present utility model, the screening component 2 includes a screening plate 3 and a blanking plate 4 arranged below the screening plate 3. The screening plate 3 is provided with a number of holes for screening. The tablets are screened by vibrating up and down. The blanking plate 4 is provided with upwardly protruding rubber cylinders 403 corresponding to the positions of the holes on the screening plate 3. The blanking plate 4 is driven by the linear driving device 8 to move vertically upward, and the rubber cylinders 403 are driven to push out the tablets stuck in the holes along the positions of the holes on the screening plate 3, so as to avoid blocking the screening plate 3 and affecting the screening efficiency;

[0025] Further, in the above solution, the blanking plate 4 is arranged below the screening plate 3. A first connecting rod 401 is provided on the side of the blanking plate 4, and a linear driving device 8 for driving the blanking plate 4 to reciprocate in the direction towards the screening plate 3 is connected to the end of the first connecting rod 401;

[0026] It should be noted that the blanking plate 4 is composed of a number of parallel blanking rods 402. A number of upwardly protruding rubber cylinders 403 are provided on the blanking rods 402 in the direction towards the screening plate 3. The rubber cylinders 403 are made of medical rubber. In one implementation, a rubber sleeve is sleeved on the outer surface of the blanking rod 402, and upwardly erected rubber cylinders 403 are provided on the rubber sleeve. The rubber cylinders 403 match the gaps of the holes on the screening plate 3. When the linear driving device 8 drives the blanking plate 4 to move upward, the rubber cylinders 403 push out the tablets stuck in the holes along the positions of the holes on the screening plate 3;

[0027] It should be noted that the eccentric vibrator 7 drives the screening plate 3 to reciprocate up and down. During use, after the screening plate 3 completes several up and down reciprocating movements and completes the preliminary screening of the drugs, when the screening plate 3 moves to the lowest horizontal height, the linear driving device 8 drives the blanking plate 4 to move upward, so that the rubber cylinders 403 move upward synchronously, and push out the tablets stuck in the holes of the screening plate 3 upward. After pushing out the tablets in the holes, the linear driving device 8 drives the blanking plate 4 to move downward away from the screening plate 3, and the eccentric vibrator 7 drives the screening plate 3 to continue to reciprocate up and down to complete the drug screening.

[0028] Further, in the above solution, the screening plate 3 is composed of several screening rods 301 distributed in a crisscross pattern. The rubber cylinders 403 on the stripping rods 402 are aligned with the holes formed by the intersection of the screening rods 301. A baffle 302 is provided around the outer edge of the screening plate 3 to form a screening groove. The tablets to be screened poured into the screening chamber 101 through the feeding port 102 fall into the screening groove. A second connecting rod 303 is provided at the end of the screening plate 3, and the end of the second connecting rod 303 is connected to the transmission rod 6.

[0029] In the structure of the vibration assembly 5 of the present invention, the transmission rod 6 includes a first transmission rod 601 and a second transmission rod 602. A vertically arranged hollow sleeve 104 is provided on the inner wall of the screening chamber 101. The hollow sleeve 104 guides the first transmission rod 601. Driven by the eccentric vibrator 7, the second transmission rod 602 swings to both sides while reciprocating. The first transmission rod 601 is inserted into the hollow sleeve 104 and its top end is connected to the end of the screening plate 3. Under the action of the hollow sleeve 104, the first transmission rod 601 does not swing to both sides while reciprocating, so that the screening plate 3 maintains a reciprocating motion perpendicular to the horizontal plane.

[0030] Further, the bottom end of the first transmission rod 601 is hinged to the top end of the second transmission rod 602. The bottom of the second transmission rod 602 is fixedly connected to the output end of the eccentric vibrator 7. The second transmission rod 602 swings to both sides while performing a linear reciprocating motion driven by the eccentric vibrator 7. The first transmission rod 601 maintains a linear reciprocating motion. The top end of the first transmission rod 601 is connected to the second connecting rod 303 on the screening plate 3. Specifically, a locking connection structure for restricting the axial movement of the second connecting rod 303 is provided between the second connecting rod 303 and the first transmission rod 601, including but not limited to connection by fixing screws.

[0031] Further, in the above solution, the eccentric vibrator 7 includes an eccentric bearing 701 and a rotating motor 702. The output shaft of the rotating motor 702 is inserted into the inner ring of the eccentric bearing 701. The transmission rod 6 is fixedly connected to the outer ring of the eccentric bearing 701. The number of the eccentric bearings 701 is two, both of which are sleeved on the output shaft of the rotating motor 702 and are respectively fixedly connected to the transmission rods 6 at both ends of the screening plate 3.

[0032] It should be noted that the two ends of the screening plate 3 need to synchronously perform reciprocating motions of up-and-down jitter. The output shaft of the rotating motor 702 extends from one end of the screening plate 3 to the other end position of the screening plate 3, and eccentric bearings 701 are provided at positions corresponding to both ends of the screening plate 3. Similarly, the number of the transmission rods 6 is two. One end of each transmission rod 6 is connected to the outer ring of the eccentric bearing 701, and the other end is connected to the second connecting rod 303 at the end of the screening plate 3, so as to drive the two ends of the screening plate 3 to synchronously perform up-and-down jitter through the eccentric vibrator to realize the screening of tablets.

[0033] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A vibration screening device for drug preparation, characterized in that, It includes a housing (1), a screening component (2) and a vibration component (5). A screening chamber (101) is provided inside the housing (1). A feeding port (102) communicating with the screening chamber (101) is provided at the top of the housing (1). A screening component (2) is provided in the middle of the screening chamber (101). The screening component (2) includes a screening plate (3) and a blanking plate (4) provided below the screening plate (3). A material receiving tray (103) integrated with the blanking plate is provided below the blanking plate (4). The vibration component (5) includes a vertically arranged transmission rod (6) and an eccentric vibrator (7). One end of the transmission rod (6) is connected to the end of the screening plate (3), and the other end is connected to the output end of the eccentric vibrator (7).

2. The vibration screening device prepared by the drug according to claim 1, characterized in that A first connecting rod (401) is provided on the side of the blanking plate (4). A linear driving device (8) for driving the blanking plate (4) to reciprocate towards the screening plate (3) is connected to the end of the first connecting rod (401).

3. The vibration screening device prepared from the drug according to claim 1, characterized in that, The blanking plate (4) is composed of several parallel blanking rods (402). Several upwardly protruding rubber cylinders (403) are provided on the blanking rods (402) facing the screening plate (3).

4. The vibration screening device prepared from the drug according to claim 1, characterized in that, The screening plate (3) is composed of several screening rods (301) distributed in a crisscross manner. A baffle (302) is provided around the outer edge of the screening plate (3) to form a screening groove. A second connecting rod (303) is provided at the end of the screening plate (3). The end of the second connecting rod (303) is connected to the transmission rod (6).

5. The vibration screening device prepared from the drug according to claim 1, wherein, The transmission rod (6) includes a first transmission rod (601) and a second transmission rod (602). A vertically arranged hollow sleeve (104) is provided on the inner wall of the screening chamber (101). The first transmission rod (601) is inserted into the hollow sleeve (104) and its top end is connected to the end of the screening plate (3).

6. The vibration screening device prepared by the drug according to claim 5, characterized in that, The bottom end of the first transmission rod (601) is hinged to the top end of the second transmission rod (602). The bottom of the second transmission rod (602) is fixedly connected to the output end of the eccentric vibrator (7).

7. The vibration screening device prepared from the drug according to claim 1, characterized in that, The eccentric vibrator (7) includes an eccentric bearing (701) and a rotating motor (702). The output shaft of the rotating motor (702) is inserted into the inner ring of the eccentric bearing (701). The transmission rod (6) is fixed to the outer ring of the eccentric bearing (701).

8. The vibration screening device prepared from the drug according to claim 7, characterized in that, The number of the eccentric bearings (701) is two, both sleeved on the output shaft of the rotating motor (702) and respectively fixedly connected to the transmission rods (6) at both ends of the screening plate (3).

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