Tablet press with leakage-proof device

By arranging a powder leakage prevention component and a connecting plate driven by an electric push rod in the tablet press feed hopper, and a rising piece structure, the problems of powder leakage in the tablet press and difficulty in removing finished tablets are solved, and sealed and convenient tablet collection is achieved.

CN223340088UActive Publication Date: 2025-09-16SICHUAN ZITONGGONG PHARM CO LTC
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Patent Information

Application Number
CN202422099881.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2025-09-16
Estimated Expiration
2034-08-28

AI Technical Summary

Technical Problem

The existing tablet press has a separate hopper and die design, which causes powdered materials to easily leak out, resulting in a waste of raw materials, and the finished tablets are easily stuck in the die cavity and difficult to remove.

Method used

A powder leakage prevention component is set in the feed hopper of the tablet press. The electric push rod and the powder leakage prevention component are used in conjunction to achieve the sealing of the discharge port. The electric push rod drives the connecting plate and the rising piece to complete the sealing of the powder and the ejection of the formed tablets.

Benefits of technology

It effectively prevents the loss of powder materials, ensures the improvement of raw material utilization rate, and facilitates the collection and removal of formed tablets.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a tablet press with a leakage-proof device, which comprises a working table, a feeding hopper fixedly connected to the top of the working table, a powder leakage-proof component arranged inside the feeding hopper, three stamping holes arranged on one side of the top of the working table, an ejection column slidably connected to the inner wall of each stamping hole, and a lifting part arranged at the bottom of each ejection column. The top of the workbench is fixedly connected with an electric push rod, and an ejector rod of the electric push rod is fixedly connected with a connecting plate. The tablet press with the leakage-proof device solves the problems that a feeding hopper and a die of an existing tablet press are separated, some powdery materials still leak down when a discharging port of the feeding hopper is closed, raw materials are wasted, finished tablets formed after the powdery materials are punched are stuck in an inner cavity of the die, and the tablet press is not convenient to use. The finished tablets can be tightly clamped in the inner cavity of the mold, the tablets are inconvenient to take out, and the use is inconvenient.
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Description

Technical Field

[0001] The utility model relates to the technical field of tablet presses, in particular to a tablet press with a leakage prevention device. Background Art

[0002] Tablet press is used in the research of tablet process in pharmaceutical industry. It is a manual or automatic continuous production equipment that presses granular materials into round, special-shaped tablets with a diameter not exceeding 13mm, or tablets with text, symbols, and graphics.

[0003] The feeding hopper and the mold of the existing tablet press are separate. When the discharge port of the feeding hopper is closed, some powdered material will still leak out, resulting in a waste of raw materials. In addition, after the powdered material is punched, the finished tablets will stick to the inner cavity of the mold. The finished tablets will be tightly stuck in the inner cavity of the mold, making it difficult to remove the tablets and inconvenient to use.

[0004] It should be noted that the information disclosed in this background technology section is only intended to increase understanding of the overall background of the present invention, and should not be regarded as an admission or in any form of implication that the information constitutes prior art already known to those skilled in the art. Therefore, the above content falls within the technical cognition of the inventor and does not necessarily constitute prior art. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a tablet press with a leak-proof device to solve the problems raised in the above background technology.

[0006] The utility model provides a tablet press with a leakage prevention device, comprising a workbench, a feed hopper fixedly connected to the top of the workbench, a powder leakage prevention component arranged inside the feed hopper, three punching holes opened on one side of the top of the workbench, a top column slidably connected to the inner wall of the punching hole, and a rising piece arranged at the bottom of the top column.

[0007] Preferably, an electric push rod is fixedly connected to the top of the workbench, the top rod of the electric push rod is fixedly connected to a connecting plate, the bottom of the connecting plate is fixedly connected to a medicine pressing column matching the punching hole, and both sides of the connecting plate are fixedly connected to a fixing frame for driving the rising part to rise.

[0008] Preferably, the powder leakage prevention component includes a mounting rod arranged on the inner wall of the feed hopper, a sliding rod is inserted into the mounting rod, the bottom of the sliding rod is fixedly connected to an arc plate, the inner wall of the feed hopper is rotatably connected to a rotating shaft, the outer side of the rotating shaft is fixedly connected to a cam, the outer side of the cam is in contact with the bottom of the arc plate, the bottom of the arc plate is fixedly connected to a connecting frame, the bottom of the connecting frame is fixedly connected to a connecting rod, the bottom of the connecting rod is fixedly connected to a blocking ball, and a spring is sleeved on the sliding rod.

[0009] Preferably, the outer side of the blocking ball fits tightly against the inner wall of the semicircular groove opened at the bottom of the feed hopper, and the top and bottom ends of the spring are fixedly connected to the bottom of the mounting rod and the top of the arc plate respectively.

[0010] Preferably, the rising member includes a fixing plate arranged at the bottom of the top column, and both sides of the fixing plate are fixedly connected with fixing blocks, and the outer side of the fixing block is slidably matched with the inner wall of the fixing frame.

[0011] Preferably, the bottom of the feed hopper is connected to a fixed pipe through a pipeline, the bottom of the fixed pipe is connected to three discharge pipes, and an inclined material guide trough is provided on the top of the workbench, and both ends of the material guide trough are connected to the discharge pipe and the punching hole.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The tablet press with a leak-proof device can seal the discharge port of the feed hopper through the powder leakage-proof component to prevent powder leakage from the discharge hopper. When powdered material enters the punching hole, the electric push rod drives the connecting plate to descend, so that the medicine pressing column punches the powder in the punching hole into tablets. When the electric push rod drives the connecting plate to rise, the fixed frames on both sides of the connecting plate drive the rising parts to rise, and the rising parts drive the ejector column to move upward in the punching hole to eject the formed tablets, so that the tablets are easy to collect.

[0014] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0015] The technical solution of the present application is further described in detail below through the accompanying drawings and examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 these drawings without paying any creative work.

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of a tablet press with a leak-proof device provided by the utility model;

[0018] Figure 2 This is a schematic structural diagram of the workbench shown in the utility model;

[0019] Figure 3This is a schematic structural diagram of the powder leakage prevention assembly shown in the present invention;

[0020] Figure 4 This is a schematic structural diagram of the rising member shown in the utility model;

[0021] Figure 5 This is a schematic diagram of the separation of the baffle ball and the bottom of the feed hopper shown in the present invention.

[0022] Numbers in the figure: 1. Workbench; 101. Electric push rod; 102. Connecting plate; 103. Medicine pressing column; 104. Fixed frame; 2. Feed hopper; 3. Anti-leakage powder assembly; 31. Mounting rod; 32. Sliding rod; 33. Arc plate; 34. Rotating shaft; 35. Cam; 36. Connecting frame; 37. Connecting rod; 38. Stop ball; 39. Spring; 4. Punching hole; 5. Ejector column; 6. Rising piece; 61. Fixed plate; 62. Fixed block; 7. Fixed pipe; 8. Discharge pipe; 9. Material guide trough. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0026] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0027] Please refer to Figure 1-Figure 5 A tablet press with a leak-proof device includes a workbench 1, a feed hopper 2 is fixedly connected to the top of the workbench 1, a leak-proof powder component 3 is arranged inside the feed hopper 2, three punching holes 4 are opened on one side of the top of the workbench 1, a top column 5 is slidably connected to the inner wall of the punching hole 4, and a rising member 6 is provided at the bottom of the top column 5.

[0028] Specifically, an electric push rod 101 is fixedly connected to the top of the workbench 1, the top rod of the electric push rod 101 is fixedly connected to a connecting plate 102, the bottom of the connecting plate 102 is fixedly connected to a medicine pressing column 103 matching the punching hole 4, and both sides of the connecting plate 102 are fixedly connected to a fixed frame 104 for driving the rising member 6 to rise.

[0029] After the feed hopper 2 discharges the powdered raw material, the discharge port of the feed hopper 2 can be sealed by the anti-leakage powder component 3 to prevent powder leakage from the discharge hopper. The powdered material enters the punching hole 4, and the electric push rod 101 drives the connecting plate 102 to descend, so that the medicine pressing column 103 punches the powder in the punching hole 4 into tablets. When the electric push rod 101 drives the connecting plate 102 to rise, the fixed frames 104 on both sides of the connecting plate 102 drive the rising member 6 to rise, and the rising member 6 drives the ejector column 5 to move upward in the punching hole 4 to eject the formed tablets, making it easier to collect the tablets.

[0030] In the specific implementation process, refer to Figure 3 and Figure 5 As shown, the powder leakage prevention component 3 includes a mounting rod 31 arranged on the inner wall of the feed hopper 2, a slide rod 32 is inserted into the mounting rod 31, and an arc plate 33 is fixedly connected to the bottom of the slide rod 32. A rotating shaft 34 is rotatably connected to the inner wall of the feed hopper 2, and a cam 35 is fixedly connected to the outer side of the rotating shaft 34. The outer side of the cam 35 is in contact with the bottom of the arc plate 33, and a connecting frame 36 is fixedly connected to the bottom of the arc plate 33. A connecting frame 36 is fixedly connected to the bottom of the connecting frame 36. A connecting rod 37 is fixedly connected to the bottom of the connecting rod 37. A blocking ball 38 is fixedly connected to the bottom of the connecting rod 37, and a spring 39 is sleeved on the slide rod 32.

[0031] A motor is fixedly installed on one side of the feed hopper 2, and the output end of the motor is fixedly connected to one end of the rotating shaft 34 to drive the rotating shaft 34 to rotate.

[0032] The rotating shaft 34 drives the cam 35 to rotate, so that the cam 35 drives the arc plate 33 and the slide rod 32 to move upward, and squeezes the spring 39. When the arc plate 33 moves upward, it simultaneously drives the connecting frame 36 and the connecting rod 37 to rise, so that the blocking ball 38 moves upward and opens the discharge port at the bottom of the feed hopper 2 for discharging. After the discharge is completed, the rotating shaft 34 drives the cam 35 to return to its initial position. Under the elastic force of the spring 39, the blocking ball 38 re-closes the discharge port at the bottom of the feed hopper 2 to prevent powder leakage from the discharge port.

[0033] Preferably, reference Figure 3 and Figure 5 As shown, the outer side of the blocking ball 38 is tightly fitted with the inner wall of the semicircular groove opened at the bottom of the feed hopper 2, and the top and bottom ends of the spring 39 are fixedly connected to the bottom of the mounting rod 31 and the top of the arc plate 33 respectively.

[0034] A semicircular through groove is provided at the bottom of the feed hopper 2 so that the outer arc surface of the blocking ball 38 is in close contact with the inner wall of the feed hopper 2 , thereby improving the sealing effect of the blocking ball 38 .

[0035] In the specific implementation process, refer to Figure 4 As shown, the rising member 6 includes a fixing plate 61 arranged at the bottom of the top column 5, and fixing blocks 62 are fixedly connected to both sides of the fixing plate 61. The outer side of the fixing block 62 is slidably matched with the inner wall of the fixing frame 104.

[0036] When the fixing frame 104 rises, it drives the fixing block 62 to rise, and the fixing block 62 drives the fixing plate 61 to rise, so that the top post 5 on the top of the fixing plate 61 moves up the inner wall of the punching hole 4, thereby ejecting the tablet.

[0037] For further reference, Figure 2 and Figure 4 As shown, the bottom of the feed hopper 2 is connected to a fixed pipe 7 through a pipeline, and the bottom of the fixed pipe 7 is connected to three discharge pipes 8. An inclined guide trough 9 is provided on the top of the workbench 1, and both ends of the guide trough 9 are connected to the discharge pipe 8 and the punching hole 4.

[0038] The powdered raw material enters the fixed tube 7 through the discharge port at the bottom of the feed hopper 2, and is discharged into the guide trough 9 through the discharge pipe 8. The powder slides into the punching hole 4 under the action of gravity through the inclined guide trough 9.

[0039] The working principle of a tablet press with a leak-proof device provided by the utility model is as follows:

[0040] When in use, after the feed hopper 2 discharges the powdered raw material, the rotating shaft 34 drives the cam 35 to rotate, so that the cam 35 drives the arc plate 33 and the slide rod 32 to move upward, and squeezes the spring 39. When the arc plate 33 moves upward, it simultaneously drives the connecting frame 36 and the connecting rod 37 to rise, so that the blocking ball 38 moves upward and opens the discharge port at the bottom of the feed hopper 2 for discharging. After the discharge is completed, the rotating shaft 34 drives the cam 35 to return to its initial position, and under the elastic force of the spring 39, the blocking ball 38 is re-adjusted to the bottom of the feed hopper 2 The discharge port is closed to prevent powder leakage from the discharge hopper. The powdered material enters the punching hole 4. The electric push rod 101 drives the connecting plate 102 to descend, so that the medicine pressing column 103 punches the powder in the punching hole 4 into tablets. When the electric push rod 101 drives the connecting plate 102 to rise, the fixing frames 104 on both sides of the connecting plate 102 drive the fixing block 62 to rise, and the fixing block 62 drives the fixing plate 61 to rise, so that the top column 5 on the top of the fixing plate 61 moves up on the inner wall of the punching hole 4, thereby ejecting the tablets.

[0041] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A tablet press with a leak-proof device, characterized in that: The invention comprises a workbench (1), wherein a feed hopper (2) is fixedly connected to the top of the workbench (1), a powder leakage prevention component (3) is arranged inside the feed hopper (2), three punching holes (4) are opened on one side of the top of the workbench (1), a top column (5) is slidably connected to the inner wall of the punching hole (4), and a lifting member (6) is arranged at the bottom of the top column (5).

2. The tablet press with a leak-proof device according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to an electric push rod (101), the top rod of the electric push rod (101) is fixedly connected to a connecting plate (102), the bottom of the connecting plate (102) is fixedly connected to a medicine pressing column (103) matching the punching hole (4), and both sides of the connecting plate (102) are fixedly connected to fixed frames (104) for driving the rising member (6) to rise.

3. The tablet press with a leak-proof device according to claim 1, characterized in that: The powder leakage prevention component (3) includes a mounting rod (31) arranged on the inner wall of the feed hopper (2), a slide rod (32) is inserted into the mounting rod (31), the bottom of the slide rod (32) is fixedly connected to an arc plate (33), the inner wall of the feed hopper (2) is rotatably connected to a rotating shaft (34), the outer side of the rotating shaft (34) is fixedly connected to a cam (35), the outer side of the cam (35) is in contact with the bottom of the arc plate (33), the bottom of the arc plate (33) is fixedly connected to a connecting frame (36), the bottom of the connecting frame (36) is fixedly connected to a connecting rod (37), the bottom of the connecting rod (37) is fixedly connected to a blocking ball (38), and a spring (39) is sleeved on the slide rod (32).

4. The tablet press with a leak-proof device according to claim 3, characterized in that: The outer side of the blocking ball (38) is tightly fitted with the inner wall of the semicircular groove opened at the bottom of the feed hopper (2), and the top and bottom ends of the spring (39) are fixedly connected to the bottom of the mounting rod (31) and the top of the arc plate (33) respectively.

5. The tablet press with a leak-proof device according to claim 1, characterized in that: The rising member (6) includes a fixing plate (61) arranged at the bottom of the top column (5), and both sides of the fixing plate (61) are fixedly connected with fixing blocks (62), and the outer side of the fixing block (62) is slidably matched with the inner wall of the fixing frame (104).

6. The tablet press with a leak-proof device according to claim 1, characterized in that: The bottom of the feed hopper (2) is connected to a fixed pipe (7) through a pipeline, and the bottom of the fixed pipe (7) is connected to three discharge pipes (8). The top of the workbench (1) is provided with an inclined material guide trough (9), and both ends of the material guide trough (9) are connected to the discharge pipe (8) and the punching hole (4).