A rotary tablet press

Abstract

This utility model provides a rotary tablet press, including a base, on which a height-adjustable lower grinding disc is disposed. The base has a U-shaped structure and includes a base plate, a vertical plate disposed on the base plate and a horizontal plate disposed on the vertical plate. A lifting platform is disposed on the vertical plate, and a mounting plate is disposed on the lifting platform. A first driving component is disposed on the mounting plate. The lower grinding disc is disposed on the output shaft of the first driving component. This utility model allows the height of the lower grinding disc to be adjusted by activating the lifting platform, enabling easy separation of the lower grinding disc from the cylinder. This facilitates efficient cleaning of residual material on the lower grinding disc by the operator, making operation more convenient and simple, and greatly improving cleaning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tableting equipment technology, specifically to a rotary tableting machine. Background Technology

[0002] Tableting machines are mainly used in the pharmaceutical industry for tablet manufacturing process research. They are automatic continuous production equipment that compresses granular materials into round, irregular, or tablet-shaped materials with text, symbols, or graphics with a diameter of no more than thirteen millimeters. Rotary tableting machines consist of multiple sets of punches evenly distributed on a turntable that move in a circular motion along a certain trajectory, and the granular materials are compressed into tablets through pressure rollers.

[0003] Existing rotary tablet presses are generally being improved to increase tablet production speed and quality. For example, a rotary tablet press disclosed in Chinese Patent CN211942240U can facilitate convenient and rapid material transfer and improve tablet production speed through the coordinated use of a main frame, tableting plate, pressure plate, extrusion column and horizontal plate. At the same time, it can also facilitate the uniform distribution of powder in different tableting holes through the coordinated use of an upper frame plate, rollers, connecting belts and scrapers, ensuring the uniform quality of powder tablets.

[0004] However, after the tablet press, as well as most traditional tablet presses, is used, some powdered medicine will inevitably remain in the lower mold cavity. The lower mold cavity is usually fixedly welded to the cylinder, which greatly increases the workload for the operator to clean the powder in the lower mold cavity. This not only makes the operation troublesome, but also greatly reduces the cleaning efficiency. Utility Model Content

[0005] In view of this, the present invention provides a rotary tablet press, which can easily separate the lower grinding disc from the cylinder through a lifting platform, making it convenient and efficient for the operator to clean the residual material on the lower grinding disc, greatly improving the cleaning effect and efficiency, and making the operation simpler and more convenient.

[0006] To solve the above-mentioned technical problems, this utility model provides a rotary tablet press, including a base, on which a height-adjustable lower grinding disc is arranged at the bottom of the cylinder. A sealing structure is provided between the outer side of the lower grinding disc and the cylinder. The sealing structure can be a rubber sealing sleeve or a rubber sealing ring. The base has a U-shaped structure, including a base plate, a vertical plate and a horizontal plate on the vertical plate. A lifting platform is provided on the vertical plate, and a mounting plate is provided on the lifting platform. A first driving component is provided on the mounting plate. The lower grinding disc is located on the output shaft of the first driving component. This utility model can adjust the height of the lower grinding disc by activating the lifting platform, which can easily separate the lower grinding disc from the cylinder. This facilitates the operator to efficiently clean the residual material on the lower grinding disc, making the operation more convenient and simple, and greatly improving the cleaning efficiency.

[0007] The lifting platform includes guide rails on both sides of the vertical plate, each guide rail is provided with a guide block, the mounting plate is fixed together with the two guide blocks, and a slider with a threaded hole is provided on the base plate between the two guide rails. The slider is threadedly connected with a screw rod, and the slider is fixed together with the mounting plate.

[0008] A second driving component is provided on the horizontal plate, and an adjustment plate is provided at the lower part of the output shaft of the second driving component. Adjustment slots are respectively opened at both ends of the adjustment plate, and an upper pressure head is detachably installed in each adjustment slot by fasteners.

[0009] The fastener is a bolt, and the upper part of the upper pressure head has a threaded hole that matches the bolt.

[0010] Both the first and second driving components are servo motors, and their rotation directions are opposite.

[0011] A protective cover is installed on the base, which covers the outside of the cylinder, and an observation window is provided on the protective cover.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. Convenient and efficient cleaning: This utility model can make the lower grinding disc height adjustable and has a sealing structure between the outer side of the lower grinding disc and the cylinder. The lower grinding disc and the cylinder can be easily separated by the lifting platform, which facilitates efficient cleaning of residual materials on the lower grinding disc. The operation is simple and greatly improves the cleaning efficiency.

[0014] 2. Flexible and stable height adjustment: This utility model can use the guide rail and guide block of the lifting platform to cooperate with the screw to drive the slider, so that the mounting plate drives the lower grinding disc to move up and down. The adjustment process is convenient and fast, and the height of the lower grinding disc can be accurately adjusted to meet different tablet pressing operation needs.

[0015] 3. This utility model can quickly adapt to the pressing needs of tablets of different specifications by setting an adjustable height lower grinding disc and a detachable upper pressing head, thereby improving production efficiency and flexibility.

[0016] 4. Stable and reliable tableting quality: By selecting servo motors with opposite rotation directions for the first and second driving components, this invention can create more stable pressure between the lower grinding disc and the upper pressure head during the tableting process, effectively improving the tableting quality and forming effect. Attached Figure Description

[0017] Figure 1 This is a partial structural schematic diagram of the rotary tablet press of this utility model;

[0018] Figure 2This is an isometric view of part of the structure of the rotary tablet press of this utility model;

[0019] Figure 3 This is a side view of a portion of the structure of the rotary tablet press of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 100, base; 101, base plate; 102, vertical plate; 103, horizontal plate; 200, lower grinding disc; 300, lifting platform; 301, guide rail; 302, guide block; 303, slider; 304, screw; 400, mounting plate; 500, first driving component; 600, second driving component; 700, adjusting plate; 701, adjusting groove; 702, upper pressure head. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-3 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0022] like Figure 1-3 As shown: This embodiment provides a rotary tablet press, including a base 100. A height-adjustable lower grinding disc 200 is provided on the base 100 and located at the bottom of the cylinder. A sealing structure is provided between the outer side of the lower grinding disc 200 and the cylinder. The sealing structure can be a rubber sealing sleeve or a rubber sealing ring. The base 100 has a U-shaped structure, including a base plate 101, a vertical plate 102 and a horizontal plate 103 provided on the vertical plate 102. A lifting platform 300 is provided on the vertical plate 102, and a mounting plate 400 is provided on the lifting platform 300. A first driving member 500 is provided on the mounting plate 400. The lower grinding disc 200 is located on the output shaft of the first driving member 500. This utility model can adjust the height of the lower grinding disc 200 by starting the lifting platform 300, which can easily separate the lower grinding disc 200 from the cylinder. This facilitates the operator to efficiently clean the residual material on the lower grinding disc 200, making the operation more convenient and simple, and greatly improving the cleaning efficiency.

[0023] The 300 lifting platform can also be equipped with a linear slide or a telescopic push rod. When using a telescopic push rod, it is best to choose a hydraulic telescopic push rod.

[0024] According to one embodiment of the present invention, such as Figure 1-3As shown, the lifting platform 300 includes guide rails 301 arranged on both sides of the vertical plate 102. Each guide rail 301 is provided with a guide block 302. The mounting plate 400 is fixed together with the two guide blocks 302. A slider 303 with a threaded hole is provided on the base plate 101 located between the two guide rails 301. A screw 304 is threadedly connected to the slider 303. The slider 303 is fixed together with the mounting plate 400. Due to the limiting and guiding effect of the guide rails 301 on the guide blocks 302 and the fixing effect of the mounting plate 400 and the guide blocks 302, the slider 303 can be moved on the base plate 101 by rotating the screw 304, thereby causing the mounting plate 400 to move up and down along the guide rails 301, realizing convenient and quick adjustment of the height of the lower grinding disc 200.

[0025] According to another embodiment of the present invention, such as Figure 1 and Figure 2 As shown, a second driving member 600 is provided on the horizontal plate 103, and an adjusting plate 700 is provided at the lower part of the output shaft of the second driving member 600. Adjusting grooves 701 are respectively opened at both ends of the adjusting plate 700. An upper pressure head 702 is detachably installed in each adjusting groove 701 by means of fasteners. The fasteners are bolts. The upper part of the upper pressure head 702 is provided with a threaded hole that matches the bolt. This utility model can adjust the position of the upper pressure head 702 in the adjusting groove 701 by loosening the fasteners, so as to realize the convenient and quick adjustment of the tablet diameter range. It is suitable for tableting operations at different positions of cylinders with different diameters, and the operation is more convenient.

[0026] Fasteners can also be screws or bolts in combination with nuts, etc.

[0027] According to another embodiment of the present invention, such as Figure 1 and Figure 3 As shown, both the first drive unit 500 and the second drive unit 600 are servo motors, and their rotation directions are opposite. The opposite rotation direction enables the lower grinding disc 200 and the upper pressure head 702 to form a more stable pressure during the tableting process, thereby improving the tableting quality and forming effect.

[0028] According to another embodiment of the present invention, such as Figure 1 and Figure 2 As shown, a protective cover is installed on the base 100, covering the outside of the cylinder, and an observation window is provided on the protective cover. The protective cover can protect the internal components of the tablet press and prevent external debris from entering, while the observation window allows the operator to observe the tableting process in real time.

[0029] How to use this utility model:

[0030] First, it needs to be clarified that the rotary tablet press involved in this utility model is mainly used for compressing various powders into tablets. This utility model takes the operation of compressing pharmaceutical powder into tablets as an example to describe its usage method in detail. In actual use:

[0031] When the height of the lower grinding disc 200 needs to be adjusted, the operator can manually or through the control system drive the screw 304 to rotate. Due to the limiting and guiding effect of the guide rail 301 on the guide block 302 and the fixing effect of the mounting plate 400 and the guide block 302, the slider 303 will move along the base plate 101 under the drive of the screw 304, thereby causing the mounting plate 400 and the lower grinding disc 200 to move up and down along the guide rail 301. If it is necessary to clean the lower grinding disc 200, the height of the lower grinding disc 200 can be lowered to separate it from the cylinder. At this time, the rubber sealing sleeve or rubber sealing ring will not hinder the separation operation, and the operator can easily clean the residual material on the surface of the lower grinding disc 200.

[0032] When performing tableting operations of different specifications, if it is necessary to adjust the tableting diameter, loosen the bolts on the adjusting groove 701 of the adjusting plate 700, move the upper pressing head 702 to the appropriate position, and then tighten the bolts to fix it. This will allow for quick adaptation to different diameter cylinders and tableting requirements.

[0033] During the tableting process, the first drive unit 500 and the second drive unit 600 (servo motors) rotate in opposite directions, driving the lower grinding disc 200 and the upper pressure head 702 to operate, forming a stable pressure to press the material. Operators can observe the tableting process in real time through the observation window on the protective cover. If any abnormality is found, the machine can be stopped immediately to ensure the tableting quality and safe operation of the equipment.

[0034] When the tableting is completed and the height of the lower grinding disc 200 needs to be adjusted, start the screw 304 drive motor to rotate the screw 304. The slider 303 moves along the base plate 101 under the action of the screw 304, thereby causing the mounting plate 400 and the lower grinding disc 200 to move up and down along the guide rail 301 until the appropriate height is adjusted. Then the operator can conveniently and efficiently clean the material remaining on the lower grinding disc 200.

[0035] When the upper pressure head 702 needs to be replaced, loosen the bolts to remove the old upper pressure head 702 and install the new upper pressure head 702. When it is necessary to adjust the distance between the two upper pressure heads 702, loosen the bolts and adjust the position of the upper pressure head 702 in the adjustment groove 701. This allows for convenient and quick adjustment of the pressing range of the upper pressure head 702. The operation is simple and fast.

[0036] This utility model can easily separate the lower grinding disc 200 from the cylinder through the lifting platform 300, which makes it convenient and efficient for the operator to clean the residual material on the lower grinding disc 200, greatly improving the cleaning effect and efficiency, and making the operation simpler and more convenient.

[0037] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A rotary tablet press, comprising a base (100), characterized in that: A height-adjustable lower grinding disc (200) is provided on the base (100) and located at the bottom of the cylinder. The base (100) has a U-shaped structure and includes a base plate (101), a vertical plate (102) provided on the base plate (101), and a horizontal plate (103) provided on the vertical plate (102). A lifting platform (300) is provided on the vertical plate (102), and a mounting plate (400) is provided on the lifting platform (300). A first driving member (500) is provided on the mounting plate (400), and the lower grinding disc (200) is located on the output shaft of the first driving member (500).

2. The rotary tablet press as described in claim 1, characterized in that: The lifting platform (300) includes guide rails (301) arranged on both sides of the vertical plate (102), and each guide rail (301) is provided with a guide block (302). The mounting plate (400) is fixed together with the two guide blocks (302). A slider (303) with a threaded hole is provided on the base plate (101) located between the two guide rails (301). A screw (304) is threadedly connected to the slider (303). The slider (303) is fixed together with the mounting plate (400).

3. The rotary tablet press as described in claim 2, characterized in that: A second driving member (600) is provided on the horizontal plate (103). An adjusting plate (700) is provided at the lower part of the output shaft of the second driving member (600). Adjusting grooves (701) are respectively opened at both ends of the adjusting plate (700). An upper pressure head (702) is detachably provided in each adjusting groove (701) by means of fasteners.

4. The rotary tablet press as described in claim 3, characterized in that: The fastener is a bolt, and the upper part of the upper pressure head (702) has a threaded hole that matches the bolt.

5. The rotary tablet press as described in claim 4, characterized in that: Both the first drive unit (500) and the second drive unit (600) are servo motors, and their rotation directions are opposite.

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