A concentrated pill screening device

By designing the swing component and barrier component of the screening device, the problem of friction and compression of concentrated pills during the screening process was solved, achieving efficient and low-damage screening of concentrated pills, and improving the screening effect and the utilization rate of medicinal materials.

CN224389304UActive Publication Date: 2026-06-23HUBEI RUIHUA PHARMA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI RUIHUA PHARMA
Filing Date
2025-07-03
Publication Date
2026-06-23

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Abstract

The utility model discloses a kind of concentrated pill screening devices, it is related to concentrated pill screening technical field, including base, the top of base is fixedly connected with first vertical plate, the right side surface of first vertical plate is hinged with hinged plate, the right side surface of hinged plate is fixedly connected with sieve frame, a group of first sieve hole, a group of second sieve hole and blanking opening are set on the inner bottom wall of sieve frame. When using, the sieve frame right end is reciprocated up and down by the swing assembly set, so that concentrated pill can slowly reciprocate rolling on the inner bottom wall of sieve frame, so that cooperation blocking component, first sieve hole, second sieve hole and blanking opening can complete screening work of small material, qualified product and large material from front to back respectively, and since concentrated pill only slowly rolls on plane, so that serious extrusion and friction between concentrated pills can be avoided, effectively reduce the damage of concentrated pill, reduce the production amount of dregs.
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Description

Technical Field

[0001] This utility model relates to the field of concentrated pellet screening technology, and in particular to a concentrated pellet screening device. Background Technology

[0002] Concentrated pills are pills made from the concentrated extract of a drug or part thereof, combined with suitable excipients or fine drug powder. They are small in size, easy to take, and have a good therapeutic effect; they are also easy to store and not prone to mold. Depending on the binder used, they are classified into concentrated water pills, concentrated honey pills, and concentrated water-honey pills.

[0003] Manufacturers of concentrated pills typically grind, mix, and boil one or more medicinal herbs, then use a drop pill technique to produce concentrated pills for patients to take orally for better therapeutic effects. During the manufacturing process, the size range of the concentrated pills is determined based on the physician's experience or through quantitative calculations. Concentrated pills exceeding the upper limit of the size range (oversized) are called "large pills," while those exceeding the lower limit are called "small pills." Concentrated pills within the normal size range are called "finished pills." Due to factors such as the manufacturing process, some concentrated pills produced from the drop pill production process may deviate from the ideal size. Oversized concentrated pills can lead to excessive dosage, wasting medicinal materials and potentially harming the patient. Undersized concentrated pills mean insufficient dosage and fail to achieve the desired therapeutic effect. Therefore, it is necessary to sieve the concentrated pills by size, discarding those that are too large or too small.

[0004] Chinese invention patent application number CN202311120272.0 describes a concentrated pill grading and screening device. This device uses a rotating trough plate to push the concentrated pills back and forth within the sieve cage during the screening process, ensuring more thorough contact between the concentrated pills and the screening surface. A vertical trough plate can fully tumble the concentrated pills during screening, ensuring all pills make full contact with the screening holes. Combined with the up-and-down oscillation of the sieve cage, this improves the dimensional qualification rate of the finished concentrated pills. However, in this device, the concentrated pills are placed into the sieve cage all at once. As the sieve cage and rotating trough plate roll within it, severe compression and friction occur between the concentrated pills. This causes the surface of the concentrated pills to easily break, producing a certain amount of medicinal residue. This leads to waste of medicinal materials and a reduction in the quality of the concentrated pills. Utility Model Content

[0005] The purpose of this invention is to provide a concentrated pill screening device to solve the problem mentioned in the background art that existing concentrated pill screening devices are prone to severe friction and compression between concentrated pills during screening, which reduces the quality of concentrated pills and causes waste of medicinal materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a concentrated pellet screening device, comprising a base, a first vertical plate fixedly connected to the top of the base, a hinge plate hinged to the right side of the first vertical plate, a screen frame fixedly connected to the right side of the hinge plate, a set of first screen holes, a set of second screen holes and a discharge port being provided on the inner bottom wall of the screen frame, the first screen holes being located to the right of the second screen holes and the aperture of the first screen holes being smaller than the aperture of the second screen holes, a swinging component and a feeding component for feeding concentrated pellets into the screen frame being connected to the base, the swinging component being connected to the right end of the screen frame, and a blocking component for preventing concentrated pellets from rolling between the upper side of the first screen hole and the upper side of the second screen hole being connected inside the screen frame;

[0007] The swing assembly is used to drive the right end of the screen frame to swing up and down reciprocally.

[0008] Preferably, a first baffle is rotatably connected between the front and rear inner walls of the bottom discharge port of the screen frame. A first electric push rod is hinged between the bottom of the first baffle and the bottom of the screen frame. A first collection basket, a second collection basket, and a third collection basket are placed sequentially from right to left on the top of the base. The first collection basket, the second collection basket, and the third collection basket are located directly below the first screen hole, the second screen hole, and the first baffle, respectively. The advantage of this arrangement is that the extension and retraction of the first electric push rod can drive the right end of the first baffle to swing upward or downward, thereby facilitating the closing and opening of the discharge port. This makes it easier to discharge oversized concentrated pellets from the screen frame and into the third collection basket. Smaller concentrated pellets and qualified concentrated pellets can fall into the first and second collection baskets respectively through the first and second screen holes, thereby effectively separating large, qualified, and small materials and collecting them separately, effectively improving the efficiency and speed of concentrated pellet screening and processing.

[0009] Preferably, the swing assembly includes two fixed plates symmetrically fixedly connected to the top of the base. Two first cylinders are symmetrically fixedly connected to the bottom of the two fixed plates. Two pull ropes are symmetrically fixedly connected to the output ends of the two first cylinders. The ends of the two pull ropes away from the first cylinders are fixedly connected to the right end of the screen frame. The first cylinders and pull ropes are in a vertical state. The advantage of this arrangement is that when the first cylinder is activated, it drives the first pull ropes to rise and fall in the vertical direction. This allows the right end of the screen frame to swing upward as the first pull ropes swing upward. As the height of the right end of the screen frame increases, the upward swing speed of the right end of the screen frame gradually decreases. This reduces the rolling speed of the concentrated pellets as they roll from right to left along the inner bottom wall of the screen frame. This allows the concentrated pellets to be more evenly distributed on the first or second screen holes, effectively improving the screening efficiency.

[0010] Preferably, the feeding assembly includes a feeding hopper fixedly connected to the top of the base via a support plate. A discharge port is provided on the left side wall of the feeding hopper. A second baffle is rotatably connected to the left side of the feeding hopper via a first rotating rod. A first motor is fixedly connected to the left side of the feeding hopper, with the output end of the first motor and the end of the first rotating rod fixedly connected. The second baffle can block the discharge port. The advantage of this arrangement is that starting the first motor drives the second baffle to swing left and right via the first rotating rod, thus opening and closing the discharge port. This allows the concentrated pellets in the feeding hopper to be intermittently and orderly fed into the sieve frame, ensuring smooth screening.

[0011] Preferably, the barrier assembly includes a connecting plate fixedly connected between the front and rear inner sidewalls of the sieve frame. Multiple straight plates are fixedly connected at equal intervals from front to back at the bottom of the connecting plate. The distance between two adjacent straight plates is greater than the aperture of the second sieve hole. A rotating shaft is rotatably connected to the front end of each straight plate. A swing plate is fixedly sleeved on the outer circumference of the rotating shaft. The length of the swing plate is greater than the distance between two adjacent straight plates. The barrier assembly also includes a driving mechanism connected to the connecting plate. The driving mechanism drives the multiple rotating shafts to rotate clockwise or counterclockwise. The advantage of this arrangement is that by driving the multiple rotating shafts to rotate clockwise or counterclockwise, the rotating shafts can drive the swing plate to swing clockwise or counterclockwise, thereby opening or closing the gap between two adjacent straight plates. This allows the concentrated pellets to be released to the upper side of the second sieve hole after the screening of smaller concentrated pellets is completed, enabling the screening of qualified concentrated pellets to begin, ensuring that the screening of large, qualified, and small materials can be carried out in an orderly and reliable manner.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] 1. In this utility model, the swing component drives the right end of the screen frame to swing up and down repeatedly, so that the concentrated pellets can slowly roll back and forth on the bottom wall of the screen frame. In conjunction with the blocking component, the first screen hole, the second screen hole and the discharge port, the small material, qualified product and large material can be screened from front to back respectively. Since the concentrated pellets only roll slowly on the plane, serious squeezing and friction between the concentrated pellets can be avoided, effectively reducing the damage to the concentrated pellets, reducing the amount of dregs generated, thereby reducing the waste of medicinal materials and improving the quality of the concentrated pellets after screening.

[0014] 2. In this utility model, the swing assembly activates the first cylinder to drive the first pull rope to rise and fall vertically. As the height of the right end of the screen frame increases, the upward swing speed of the right end of the screen frame gradually decreases. This reduces the rolling speed of the concentrated pellets as they roll from right to left along the inner bottom wall of the screen frame, allowing the concentrated pellets to be more evenly distributed on the first or second screen holes, effectively improving the screening efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first structural schematic diagram of a concentrated pellet screening device according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the second structure of a concentrated pellet screening device in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the barrier component in an embodiment of the present invention;

[0019] Figure 4 As an embodiment of this utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 5 As an embodiment of this utility model Figure 2 Enlarged diagram of point B in the middle.

[0021] In the diagram: 1. Base; 11. First collection basket; 12. Second collection basket; 13. Third collection basket; 2. First vertical plate; 21. Hinge plate; 3. Screen frame; 31. First screen hole; 32. Second screen hole; 33. First baffle; 34. First electric push rod; 4. Swing assembly; 41. Fixed plate; 42. First cylinder; 43. Pull rope; 5. Feeding assembly; 51. Feeding hopper; 52. Second baffle; 6. Barrier assembly; 61. Connecting plate; 62. Straight plate; 63. Rotating shaft; 64. Swing plate; 65. Drive mechanism; 651. Drive wheel; 652. Second cylinder; 653. Horizontal plate; 654. Drive plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please refer to Figures 1-5 The concentrated pellet screening device shown includes a base 1, a first vertical plate 2 fixedly connected to the top of the base 1, a hinge plate 21 hinged to the right side of the first vertical plate 2, a screen frame 3 fixedly connected to the right side of the hinge plate 21, a set of first screen holes 31, a set of second screen holes 32 and a discharge port are provided on the inner bottom wall of the screen frame 3, the first screen holes 31 are located to the right of the second screen holes 32 and the aperture of the first screen holes 31 is smaller than the aperture of the second screen holes 32, a swing component 4 and a feeding component 5 for feeding the concentrated pellets into the screen frame 3 are connected to the base 1, the swing component 4 is connected to the right end of the screen frame 3, and a blocking component 6 for preventing the concentrated pellets from rolling between the upper side of the first screen holes 31 and the upper side of the second screen holes 32 is connected inside the screen frame 3.

[0025] The swing component 4 is used to drive the right end of the screen frame 3 to swing up and down reciprocally.

[0026] refer to Figure 1 , Figure 2 and Figure 5 A first baffle 33 is rotatably connected between the front and rear inner walls of the bottom material discharge port of the screen frame 3. A first electric push rod 34 is hinged between the bottom of the first baffle 33 and the bottom of the screen frame 3. A first collection basket 11, a second collection basket 12 and a third collection basket 13 are placed sequentially from right to left on the top of the base 1. The first collection basket 11, the second collection basket 12 and the third collection basket 13 are located directly below the first screen hole 31, the second screen hole 32 and the first baffle 33, respectively.

[0027] Specifically, the extension and retraction of the first electric push rod 34 can drive the right end of the first baffle 33 to swing upward or downward, thereby conveniently closing and opening the discharge port. This facilitates the removal of oversized concentrated pellets from the sieve frame 3 and their falling into the third collection basket 13. Smaller concentrated pellets and qualified concentrated pellets can fall into the first collection basket 11 and the second collection basket 12 respectively through the first sieve hole 31 and the second sieve hole 32. This effectively separates large, qualified, and small materials and collects them separately, thus improving the efficiency and speed of concentrated pellet screening.

[0028] refer to Figure 1 and Figure 2The swing assembly 4 includes two fixed plates 41 symmetrically fixedly connected to the top of the base 1. Two first cylinders 42 are symmetrically fixedly connected to the bottom of the two fixed plates 41. Two pull ropes 43 are symmetrically fixedly connected to the output ends of the two first cylinders 42. The ends of the two pull ropes 43 away from the first cylinders 42 are fixedly connected to the right end of the screen frame 3. The first cylinders 42 and the pull ropes 43 are in a vertical state.

[0029] Specifically, starting the first cylinder 42 drives the first pull rope 43 to rise and fall vertically. This allows the right end of the screen frame 3 to swing upward as the height of the right end of the screen frame 3 increases, and the upward swing speed of the right end of the screen frame 3 gradually decreases. This reduces the rolling speed of the concentrated pellets as they roll from right to left along the inner bottom wall of the screen frame 3, allowing the concentrated pellets to be more evenly distributed on the first screen hole 31 or the second screen hole 32, effectively improving the screening efficiency.

[0030] refer to Figure 1 and Figure 2 The feeding assembly 5 includes a feeding hopper 51 fixedly connected to the top of the base 1 via a support plate. A discharge port is provided on the left side wall of the feeding hopper 51. A second baffle 52 is rotatably connected to the left side of the feeding hopper 51 via a first rotating rod. A first motor is fixedly connected to the left side of the feeding hopper 51. The output end of the first motor is fixedly connected to the end of the first rotating rod. The second baffle 52 can block the discharge port.

[0031] Specifically, starting the first motor drives the second baffle 52 to swing left and right via the first rotating rod, thus opening and closing the discharge port. This allows the concentrated pellets in the feeding hopper 51 to be sent to the inside of the screen frame 3 intermittently and orderly, ensuring that the screening work can proceed smoothly.

[0032] refer to Figures 1-4 The barrier component 6 includes a connecting plate 61 fixedly connected between the front and rear inner sidewalls of the sieve frame 3. Multiple straight plates 62 are fixedly connected at equal intervals from front to back at the bottom of the connecting plate 61. The distance between two adjacent straight plates 62 is greater than the aperture of the second sieve hole 32. A rotating shaft 63 is rotatably connected to the front end of the straight plate 62. A swing plate 64 is fixedly sleeved on the outer circumferential surface of the rotating shaft 63. The length of the swing plate 64 is greater than the distance between two adjacent straight plates 62. The barrier component 6 also includes a driving mechanism 65 connected to the connecting plate 61. The driving mechanism 65 is used to drive the multiple rotating shafts 63 to rotate clockwise or counterclockwise.

[0033] The top ends of multiple rotating shafts 63 penetrate the top wall of the straight plate 62 and the top wall of the connecting plate 61. The drive mechanism 65 includes drive wheels 651 fixedly connected to the top ends of the multiple rotating shafts 63 respectively. The drive mechanism 65 also includes two second cylinders 652 symmetrically fixedly connected to the top of the connecting plate 61. Two horizontal plates 653 are symmetrically fixedly connected to the output ends of the two second cylinders 652. A drive plate 654 is fixedly connected between the left sides of the two horizontal plates 653. The right side of the drive plate 654 and the outer peripheral surface of the multiple drive wheels 651 are tightly pressed together. The two second cylinders 652 extend and retract in opposite directions. When the two second cylinders 652 are activated, the drive plate 654 moves back and forth. The drive plate 654 can drive multiple swing plates 64 to swing back or forward through the drive wheels 651 and the rotating shafts 63. This can move the concentrated pellets located on the right side of the swing plate 64, so that the concentrated pellets can pass through the gap between the straight plates 62 more evenly and quickly, ensuring that the screening work can be carried out smoothly and quickly.

[0034] Specifically, the drive mechanism 65 drives multiple rotating shafts 63 to rotate clockwise or counterclockwise, which in turn drives the swing plate 64 to swing clockwise or counterclockwise, thereby opening or closing the gap between two adjacent straight plates 62. After the screening of smaller concentrated pellets is completed, the concentrated pellets can be released to the upper side of the second sieve hole 32 to start the screening of qualified concentrated pellets, ensuring that the screening of large materials, qualified products and small materials can be carried out in an orderly and reliable manner.

[0035] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concentrated pellet screening device, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of a first vertical plate (2). A hinge plate (21) is hinged to the right side of the first vertical plate (2). A screen frame (3) is fixedly connected to the right side of the hinge plate (21). A set of first screen holes (31), a set of second screen holes (32) and a discharge port are provided on the inner bottom wall of the screen frame (3). The first screen hole (31) is located to the right of the second screen hole (32) and the aperture of the first screen hole (31) is smaller than the aperture of the second screen hole (32). A swing assembly (4) and a feeding assembly (5) for feeding concentrated pellets into the screen frame (3) are connected to the base (1). The swing assembly (4) is connected to the right end of the screen frame (3). A blocking assembly (6) for preventing the concentrated pellets from rolling between the upper side of the first screen hole (31) and the upper side of the second screen hole (32) is connected inside the screen frame (3). The swing component (4) is used to drive the right end of the screen frame (3) to swing up and down repeatedly.

2. The concentrated pellet screening device according to claim 1, characterized in that: A first baffle (33) is rotatably connected between the front and rear inner walls of the bottom material discharge port of the screen frame (3). A first electric push rod (34) is hinged between the bottom of the first baffle (33) and the bottom of the screen frame (3). A first collection basket (11), a second collection basket (12) and a third collection basket (13) are placed sequentially from right to left on the top of the base (1). The first collection basket (11), the second collection basket (12) and the third collection basket (13) are located directly below the first screen hole (31), the second screen hole (32) and the first baffle (33), respectively.

3. The concentrated pellet screening device according to claim 2, characterized in that: The swing assembly (4) includes two fixed plates (41) symmetrically fixedly connected to the top of the base (1). Two first cylinders (42) are symmetrically fixedly connected to the bottom of the two fixed plates (41). Two pull ropes (43) are symmetrically fixedly connected to the output ends of the two first cylinders (42). The end of the two pull ropes (43) away from the first cylinders (42) is fixedly connected to the right end of the screen frame (3). The first cylinders (42) and the pull ropes (43) are in a vertical state.

4. The concentrated pellet screening device according to claim 3, characterized in that: The feeding assembly (5) includes a feeding hopper (51) fixedly connected to the top of the base (1) via a support plate. The feeding hopper (51) has a discharge port on its left side wall. The left side of the feeding hopper (51) is rotatably connected to a second baffle (52) via a first rotating rod. The left side of the feeding hopper (51) is fixedly connected to a first motor. The output end of the first motor is fixedly connected to the end of the first rotating rod. The second baffle (52) can block the discharge port.

5. The concentrated pellet screening device according to claim 4, characterized in that: The barrier assembly (6) includes a connecting plate (61) fixedly connected between the front and rear inner walls of the sieve frame (3). Multiple straight plates (62) are fixedly connected at equal intervals from front to back at the bottom of the connecting plate (61). The distance between two adjacent straight plates (62) is greater than the aperture of the second sieve hole (32). A rotating shaft (63) is rotatably connected to the front end of the straight plate (62). A swing plate (64) is fixedly sleeved on the outer circumferential surface of the rotating shaft (63). The length of the swing plate (64) is greater than the distance between two adjacent straight plates (62). The barrier assembly (6) also includes a driving mechanism (65) connected to the connecting plate (61). The driving mechanism (65) is used to drive the multiple rotating shafts (63) to rotate clockwise or counterclockwise.