Powder blocking assembly of high-speed tablet press

Abstract

The utility model discloses a powder blocking assembly of a high-speed tablet press, which comprises a feeder provided with a feeding inlet and a feeding outlet, and further comprises a fixed support fixed on the side face of a feeder rack, a powder blocking assembly arranged on the fixed support, and a powder blocking assembly arranged on the powder blocking assembly, the fixed frame is fixed on the inner side surface of the fixed bracket; the powder scraping plate is fixed to the inner side face of the fixing frame in a suspended mode and located above the disc punching die, and the powder scraping plate makes contact with the disc punching die and can scrape powder overflowing from the disc punching die to be flat; and the cover plate is fixed on the feeder rack and can cover the powder scraping plate and the fixed frame, and the powder intercepted by the powder scraping plate can be pressed by the cover plate without overflowing. A reed is fixed to the bottom face of the cover plate and is in a U shape, the two ends of the reed press the powder scraping plate in the thickness direction, and the powder scraping plate is fixed to the fixing frame through screws and has fine adjustment displacement intervals in the vertical direction and the length direction. The powder scraping device has the advantages of being simple in structure, low in cost, convenient to install and maintain and capable of improving powder accumulation, overflowing and powder leakage and prolonging the service life of the powder scraping plate.

Description

Technical Field

[0001] This utility model relates to a powder-blocking component for a tablet press. Background Technology

[0002] A tablet press for pharmaceutical tablet processing consists of a punch, a feeder, and a powder-blocking assembly. The punch is rotatable, and a mold is set on the outer circumference of the punch. An upper punch is set above the mold, which can press the powder into the mold hole to form a tablet. A lower punch is set below the mold, which can push the tablet out of the mold hole. The feeder can deliver the powder to the top of the mold and load it into the mold hole by its own weight. The powder-blocking assembly scrapes off the powder above the mold and guides this powder to the recovery ring. After the punch rotates once, this powder is refilled into the mold hole by the feeder. In the prior art, due to the structure of the powder-blocking plate, the powder-blocking effect of the scraper plate is reduced when facing loose, fine materials; when facing granular materials, the scraper plate wears too quickly; when the punch rotates too fast, the powder-blocking plate, due to the installation method, causes the powder to accumulate and overflow, and cannot be properly guided back to the recovery ring. Utility Model Content

[0003] To address the above deficiencies, this invention provides a powder-blocking component for a high-speed tablet press.

[0004] The technical solution of this utility model is:

[0005] A powder-blocking assembly for a high-speed tablet press includes a feeder having a feed inlet and a feed outlet, and further includes:

[0006] A fixed bracket is attached to the side of the feeder frame;

[0007] The fixing bracket is fixed to the inner side of the fixing support;

[0008] The powder scraper is suspended and fixed on the inner side of the fixed frame and located above the stamping die. When the powder scraper touches the stamping die, it can scrape the powder overflowing from the stamping die.

[0009] The cover plate is fixed on the feeder frame and can cover the powder scraper and the fixed frame. The powder trapped by the powder scraper can also be pressed by the cover plate to prevent it from overflowing.

[0010] Preferably, a spring is fixed to the bottom surface of the cover plate. The spring is U-shaped and its two ends press against the thickness direction of the scraper plate. The scraper plate is fixed to the fixing frame by screws and has a fine-tuning displacement distance in the vertical and length directions.

[0011] Preferably, a powder-protecting plate is fixed to the bottom of the fixed frame. The powder-protecting plate is close to the circular opening end of the feeder frame and can prevent powder from overflowing from the circular opening end.

[0012] Preferably, the fixing bracket is provided with a concave angle, and the fixing frame is fixed tightly against the concave angle.

[0013] Preferably, the cover plate is provided with an arc edge that can close the annular opening end of the feeder frame.

[0014] Preferably, the two ends of the U-shaped spring are inclined downwards, which can press down on the middle of the powder scraper.

[0015] Preferably, the fixing frame is viewed from above as a trapezoidal block.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The problem of powder accumulation and overflow has been significantly improved, powder leakage from the scraper has been reduced, wear on the scraper has been reduced and its lifespan has been extended, and replacing the scraper is convenient.

[0018] This invention has the advantages of simple structure, low cost, convenient installation and maintenance, improved powder accumulation, overflow and leakage, and extended life of the powder scraper. Attached Figure Description

[0019] Figure 1 This is a top view of the overall structure of this utility model.

[0020] Figure 2 This is a three-dimensional view of the overall structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the spring and the powder scraper of this utility model. Detailed Implementation

[0023] The present invention will now be further described with reference to the accompanying drawings:

[0024] like Figure 1-4 As shown, a powder-blocking assembly for a high-speed tablet press includes a feeder 7, which has a feed inlet 71 and a feed outlet 72, and further includes:

[0025] Fixed bracket 1, which is fixed to the side of the feeder 7 frame;

[0026] The fixing bracket 5 is fixed to the inner side of the fixing support 1;

[0027] The powder scraper 2 is suspended and fixed on the inner side of the fixing frame 5 and located above the punching die. When the powder scraper 2 touches the punching die, it can scrape the powder overflowing from the punching die.

[0028] The cover plate 4 is fixed on the feeder 7 frame and can cover the powder scraper 2 and the fixing frame 5. The powder trapped by the powder scraper 2 can also be pressed by the cover plate 4 to prevent it from overflowing.

[0029] The scraper plate 2 of this utility model is not completely fixed. It can be slightly adjusted in position to ensure that the scraper plate 2 makes a flexible contact with the punch plate by gravity, which prevents fine crystalline materials from damaging the scraper plate and the punch plate, reduces the wear of the scraper plate, and can both scrape the powder and guide the flow of materials and extend the life of the scraper plate.

[0030] It should be noted that when the stamping die rotates, the material on the surface of the stamping die will rotate with the stamping die. The completely fixed scraper 2 will wear out severely due to friction with the stamping die. At the same time, it will also increase the gap between the scraper 2 and the stamping die, so that the powder overflowing from the stamping die cannot be scraped flat and concentrated together, and the powder cannot be correctly guided to the predetermined position.

[0031] Preferably, a spring 6 is fixed to the bottom surface of the cover plate 4. The spring 6 is U-shaped, and its two ends press against the thickness direction of the scraper plate 2. The scraper plate 2 is fixed to the fixing frame 5 by screws and has a fine-tuning displacement distance in the vertical and longitudinal directions. The scraper plate is a consumable. The hardness of the punch plate is higher than that of the scraper plate. The spring presses the scraper plate against the surface of the punch plate to prevent material leakage. The spring can also prevent hard friction caused by crystals or impurities in the powder.

[0032] Preferably, a powder protection plate 3 is fixed to the bottom of the fixing frame 5. The powder protection plate 3 is close to the circular opening end of the feeder 7 frame and can prevent powder from overflowing from the circular opening end.

[0033] To ensure a secure fixation, the fixing bracket 1 is provided with an inner concave angle 11, and the fixing frame 5 is fixed tightly against the inner concave angle 11.

[0034] Preferably, the cover plate 4 is provided with an arc edge, which can close the annular opening end of the feeder 7 frame.

[0035] Preferably, the two ends of the U-shaped spring 6 are tilted downwards, which can press down on the middle of the powder scraper 2, so that the powder scraper 2 is pressed evenly and thus stabilized.

[0036] Preferably, the mounting bracket 5 is viewed from above as a trapezoidal block.

Claims

1. A powder-blocking assembly for a high-speed tablet press, comprising a feeder (7), the feeder (7) being provided with a feed inlet (71) and a feed outlet (72), characterized in that, it further... include: Fixed bracket (1), which is fixed to the side of the feeder (7) frame; The fixing bracket (5) is fixed to the inner side of the fixing support (1); The powder scraper (2) is suspended and fixed on the inner side of the fixing frame (5) and located above the punching die. When the powder scraper (2) touches the punching die, it can scrape the powder overflowing from the punching die. The cover plate (4) is fixed on the feeder (7) frame and can cover the powder scraper (2) and the fixed frame (5). The powder trapped by the powder scraper (2) can also be pressed by the cover plate (4) to prevent it from overflowing.

2. The powder-blocking component of a high-speed tablet press as described in claim 1, characterized in that, A spring (6) is fixed to the bottom surface of the cover plate (4). The spring (6) is U-shaped and its two ends press against the thickness direction of the scraper plate (2). The scraper plate (2) is fixed to the fixing frame (5) by screws and has a fine adjustment displacement distance in the up and down and length directions.

3. The powder-blocking component of a high-speed tablet press as described in claim 1, characterized in that, The bottom of the fixed frame (5) is fixed with a powder protection plate (3), which is close to the circular opening end of the feeder (7) frame and can prevent powder from overflowing from the circular opening end.

4. A powder-blocking assembly for a high-speed tablet press as described in claim 1, 2, or 3, characterized in that, The fixed bracket (1) is provided with a concave angle (11), and the fixed frame (5) is fixed in close contact with the concave angle (11).

5. A powder-blocking assembly for a high-speed tablet press as described in claim 1, 2, or 3, characterized in that, The cover plate (4) is provided with an arc edge, which can close the annular opening end of the feeder (7) frame.

6. The powder-blocking component of a high-speed tablet press as described in claim 2, characterized in that, The two ends of the U-shaped spring (6) are inclined downwards, which can press down the middle of the powder scraper (2).

7. The powder-blocking component of a high-speed tablet press as described in claim 1, characterized in that, The fixed frame (5) is viewed from above as a trapezoidal block.

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