Automatic tabletting device for pharmacy

Abstract

The utility model discloses an automatic tabletting device for pharmacy. The automatic tabletting device comprises a rotating table, a rotating mechanism, a lower track, an upper track, an upper stamping rod, a lower stamping rod and a tabletting roller, the rotating table is provided with an upper rotating disc, a middle rotating disc and a lower rotating disc from top to bottom. A plurality of stamping sleeves are arranged on the middle rotating disc in the circumferential direction, a plurality of upper stamping rods are arranged in the upper rotating disc in a lifting mode, a plurality of lower stamping rods are arranged in the lower rotating disc in a lifting mode, a first arc-shaped section protruding upwards is arranged on the end face of the lower track, a second arc-shaped section protruding upwards is arranged on the bottom face of the upper track, and the tabletting roller is arranged on the top of the upper rotating disc. The lower stamping rod can bear medicine powder, the upper stamping rod is pressed and formed under the action of the tablet pressing roller, formed tablets are ejected out by the lower stamping rod under the action of the first arc-shaped section, meanwhile, the upper stamping rod is lifted up under the action of the second arc-shaped section, and a space is reserved for medicine powder filling. The tablet pressing, tablet jacking and filling processes are efficiently linked in the continuous movement of the rotating table, and therefore automatic operation of equipment is achieved.

Description

Technical Field

[0001] This utility model relates to the field of tableting devices, and in particular to an automatic tableting device for pharmaceutical use. Background Technology

[0002] Tableting equipment is a device used in the pharmaceutical industry to compress and shape powdered or granular materials. Its function is to uniformly fill the powder and form dense tablets with a certain shape and size under high pressure. In pharmaceutical production, tablets have become the most widely used drug dosage form due to their advantages such as accurate dosage and convenient administration.

[0003] In existing technologies, traditional tableting equipment typically employs single-point operation or intermittent production. This mode has low production efficiency and is difficult to meet the demands of modern pharmaceutical industries for large-scale, high-efficiency, and continuous production. Furthermore, once tablets are formed, they are prone to breakage or loss during subsequent collection and feeding processes, thereby reducing production efficiency and yield. In addition, during the tableting process, drug powder may scatter, which not only wastes the drug powder but also pollutes the production environment, making it difficult to meet the requirements of clean production in modern pharmaceuticals.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an automatic tablet compressing device for pharmaceuticals with high production efficiency and the ability to automatically collect and form tablets.

[0006] To achieve this objective, the present invention adopts the following technical solution: an automatic tableting device for pharmaceutical use, comprising a rotary table, a rotating mechanism, a lower track, an upper track, an upper punch rod, a lower punch rod, and tableting rollers;

[0007] The rotating mechanism is connected to the rotating platform and is used to drive the rotating platform to rotate. The rotating platform is provided with an upper turntable, a middle turntable and a lower turntable from top to bottom.

[0008] The turntable is provided with a plurality of spaced-apart stamping sleeves along the circumferential direction. The plurality of upper stamping rods can be raised and lowered in the upper turntable, and the plurality of lower stamping rods can be raised and lowered in the lower turntable, with the lower stamping rods partially located in the stamping sleeves.

[0009] The lower track is located below the lower turntable and abuts against the bottom of the lower punch rod. The end face of the lower track is provided with an upwardly protruding first arc-shaped section, which is used to push the lower punch rod upward as the turntable rotates.

[0010] The upper track is located above the upper turntable, and the upper track and the lower track are vertically corresponding. The bottom surface of the upper track is provided with an upwardly protruding second arc segment, which is used to clamp the upper punch rod upward as the turntable rotates.

[0011] The pressing roller is located on the top of the upper turntable, and the bottom of the pressing roller abuts against the top of the upper punch rod, so as to press the upper punch rod into the punching sleeve as the turntable rotates.

[0012] Using the above technical solution, in the automatic tableting device for pharmaceuticals, the top of the lower punch rod is provided with a first groove, and the bottom of the upper punch rod is provided with a second groove. When the upper punch rod is pressed into the punching sleeve, a cavity for forming the shape of a tablet is formed between the first groove and the second groove.

[0013] The above technical solution is adopted. The automatic tableting device for pharmaceutical use also includes a feeding cylinder, a powder sweeping bin and a powder sweeping mechanism. The powder sweeping bin is located at the side end of the central turntable and between the upper track and the lower track. The bottom of the powder sweeping bin is provided with an arc-shaped feeding hole that communicates with the stamping sleeve.

[0014] The discharge cylinder is connected to the powder sweeping bin. The discharge cylinder is used to transport the powder to the powder sweeping bin. The powder sweeping mechanism is located in the powder sweeping bin. The powder sweeping mechanism is used to sweep the powder from the arc-shaped discharge hole into the first groove of the lower punch rod.

[0015] Using the above technical solution, in the automatic tableting device for pharmaceutical use, the powder sweeping mechanism includes a drive motor, a transmission shaft, a gear assembly, and a powder sweeping impeller;

[0016] Multiple powder-sweeping impellers are respectively located in the powder-sweeping chamber, and the powder-sweeping impellers are used to sweep the medicine powder into the arc-shaped discharge hole when rotating;

[0017] The dust-sweeping impeller is connected to the gear assembly via a connecting shaft, and the output shaft of the drive motor is connected to the gear assembly via the transmission shaft. The drive motor is used to drive the dust-sweeping impeller to rotate.

[0018] The above-mentioned automatic tableting device for pharmaceutical use further includes a feeding chute and a baffle plate. The feeding chute is located at one end of the powder sweeping bin, and the baffle plate is disposed between the powder sweeping bin and the feeding chute. The bottom of the baffle plate abuts against the central turntable. The baffle plate is used to block the formed tablets that are pushed up by the lower punch rod, and the feeding chute is used to receive and feed the formed tablets.

[0019] The above-mentioned automatic tableting device for pharmaceutical use further includes a negative pressure suction device. The negative pressure suction device is located at the other end of the powder sweeping chamber. The air inlet of the negative pressure suction device is located between the middle rotating plate and the lower rotating plate. The negative pressure suction device is used to adsorb uncompacted drug powder.

[0020] Using the above technical solution, in the automatic tableting device for pharmaceuticals, the upper region of the lower punch rod is provided with a first journal section, and the lower region of the upper punch rod is provided with a second journal section, wherein the length of the first journal section is greater than the length of the second journal section.

[0021] The above-described automatic tableting device for pharmaceutical use also includes a protective cover, and the rotating table is located inside the protective cover.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The lower punch rod of this invention carries the drug powder at its top. The upper punch rod moves downward under the action of the tableting roller, pressing the drug powder into a tablet within the hollow punching sleeve. As the rotary table rotates, the lower punch rod enters the first arc section, which gradually lifts the lower punch rod upward, causing it to eject the formed tablet from the punching sleeve, facilitating the tablet feeding operation. Simultaneously, the upper punch rod is clamped upward under the action of the second arc section, thereby increasing the distance between the upper and lower punch rods and reserving space for the next step of filling the drug powder. This design allows the tableting, tablet ejection, and filling processes to be seamlessly connected during the continuous movement of the rotary table, thus achieving efficient and automated operation of the equipment. Attached Figure Description

[0024] 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.

[0025] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0026] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the rotating table structure of this utility model;

[0028] Figure 3 This is an exploded view of the powder sweeping mechanism of this utility model;

[0029] Figure 4 This is a schematic diagram of the upper and lower punch rods of this utility model.

[0030] Figure 5 This is a schematic diagram of the installation structure of the protective cover of this utility model. Detailed Implementation

[0031] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 5As shown, this utility model embodiment provides an automatic tableting device for pharmaceutical use, including a rotary table 1, a rotating mechanism 2, a lower track 31, an upper track 32, an upper punch rod 41, a lower punch rod 42, and tableting rollers 5; the rotating mechanism 2 is connected to the rotary table 1, and the rotating mechanism 2 is used to drive the rotary table 1 to rotate. The rotary table 1 is provided with an upper turntable 11, a middle turntable 12, and a lower turntable 13 from top to bottom. The middle turntable 12 is embedded with a plurality of spaced-apart punching sleeves 120 along the circumferential direction, and the plurality of upper... The stamping rod 41 is vertically mounted within the upper turntable 11, and multiple lower stamping rods 42 are vertically mounted within the lower turntable 13, with some of the lower stamping rods 42 located within the stamping sleeve 120. During the rotation of the rotary table 1, the lower stamping rods 42 can complete the process of carrying the powder, ejecting the formed tablets, and returning to their original position with the lifting and lowering motion, while the upper stamping rods 41 can compact the powder to form tablets. In this way, the precise pressing of the powder and the continuity of the tablet ejection process can be achieved, greatly improving production efficiency and yield.

[0035] The lower track 31 is located below the lower turntable 13 and abuts against the bottom of the lower punch rod 42. The end face of the lower track 31 is provided with an upwardly protruding first arc-shaped segment 311, which is used to push the lower punch rod 42 upward as the turntable 1 rotates. The upper track 32 is located above the upper turntable 11, and the positions of the upper track 32 and the lower track 31 are vertically corresponding. The bottom surface of the upper track 32 is provided with an upwardly protruding second arc-shaped segment 321, which is used to clamp the upper punch rod 41 upward as the turntable 1 rotates. The pressing roller 5 is located at the top of the upper turntable 11, and the bottom of the pressing roller 5 abuts against the top of the upper punch rod 41 to press the upper punch rod 41 into the stamping sleeve 120 as the turntable 1 rotates. Before the lower stamping rod 42 enters the first arc-shaped section 311, its top carries the drug powder. The upper stamping rod 41 moves downward under the action of the tableting roller 5, pressing the drug powder into shape within the hollow stamping sleeve 120 to form a tablet. As the rotary table 1 rotates, the lower stamping rod 42 enters the first arc-shaped section 311, which gradually pushes the lower stamping rod 42 upward, causing it to eject the formed tablet from the stamping sleeve 120, facilitating the tablet feeding operation. Simultaneously, the upper stamping rod 41 is clamped upward under the action of the second arc-shaped section 321, thereby increasing the distance between the upper stamping rod 41 and the lower stamping rod 42, reserving space for the next step of drug powder filling. This arrangement ensures seamless connection between the tableting, tablet ejection, and filling processes during the continuous movement of the rotary table 1, guaranteeing the efficient and automated operation of the equipment.

[0036] like Figure 4As shown, the lower stamping rod 42 has a first groove 420 at its top and the upper stamping rod 41 has a second groove 410 at its bottom. When the upper stamping rod 41 is pressed against the stamping sleeve 120, a cavity for forming a tablet shape is formed between the first groove 420 and the second groove 410. The cavity formed between the first groove 420 and the second groove 410 can serve as a mold, allowing the powdered medicine to be uniformly compacted under high pressure, thereby forming a tablet with a specific shape and specifications.

[0037] like Figure 2 and Figure 3 As shown, further, it also includes a discharge cylinder 61, a powder sweeping bin 62, and a powder sweeping mechanism 63. The powder sweeping bin 62 is located at the side end of the central turntable 12 and is situated between the upper track 32 and the lower track 31. The bottom of the powder sweeping bin 62 is provided with an arc-shaped discharge hole 620 that communicates with the stamping sleeve 120. The discharge cylinder 61 communicates with the powder sweeping bin 62 and is used to convey the powder into the powder sweeping bin 62. The powder sweeping mechanism 63 is located inside the powder sweeping bin 62 and is used to sweep the powder from the arc-shaped discharge hole 620 into the first groove 420 of the lower stamping rod 42. The feeding cylinder 61 can continuously convey the powder to the powder sweeping bin 62. The powder sweeping bin 62 is located on the side of the central turntable 12 and in the area between the upper track 32 and the lower track 31, so as to fill the stamping sleeves 120 of each station with powder when the rotary table 1 rotates. The powder sweeping mechanism 63 can rotate and move the powder, thereby improving the uniformity of powder supply.

[0038] like Figure 3 As shown, the powder sweeping mechanism 63 further includes a drive motor 631, a transmission shaft 632, a gear assembly 633, and powder sweeping impellers 634. Multiple powder sweeping impellers 634 are located within the powder sweeping chamber 62. Each powder sweeping impeller 634, when rotating, sweeps the powder into the arc-shaped discharge hole 620. The powder sweeping impeller 634 is connected to the gear assembly 633 via a connecting shaft. The output shaft of the drive motor 631 is connected to the gear assembly 633 via the transmission shaft 632. The drive motor 631 drives the powder sweeping impellers 634 to rotate. When rotating, the powder sweeping impellers 634 continuously push the powder in the powder sweeping chamber 62 into the arc-shaped discharge hole 620, and fill the powder into the first groove 420 of the lower punch rod 42 through the arc-shaped discharge hole 620, thereby avoiding powder accumulation or uneven filling.

[0039] like Figure 2As shown, further, it also includes a discharge chute 71 and a baffle plate 72. The discharge chute 71 is located at one end of the powder sweeping bin 62, and the baffle plate 72 is disposed between the powder sweeping bin 62 and the discharge chute 71, with the bottom of the baffle plate 72 abutting against the central turntable 12. The baffle plate 72 is used to block the formed tablets pushed up by the lower punch rod 42, and the discharge chute 71 is used to receive and discharge the formed tablets. When the lower punch rod 42 enters the first arc segment 311 as the rotary table 1 rotates, the formed tablets are pushed up above the central turntable 12. At this time, the baffle plate 72 can block the medicine, and as the rotary table 1 continues to rotate, it blocks the tablets on the central turntable 12. After the tablets are intercepted by the baffle plate 72, they can be discharged centrally through the discharge chute 71.

[0040] like Figure 1 and Figure 2 As shown, it further includes a negative pressure suction device 8, which is located at the other end of the powder sweeping chamber 62. The suction port of the negative pressure suction device 8 is located between the intermediate turntable 12 and the lower turntable 13. The negative pressure suction device 8 is used to adsorb uncompacted drug powder. During the filling and pressing process, some drug powder will enter the gap between the stamping sleeve 120 and the lower stamping rod 42. The negative pressure suction device 8 generates a continuous negative pressure suction force to quickly adsorb and recover the scattered drug powder. This not only avoids the pollution of the environment by drug powder, but also allows the unused drug powder to be re-adsorbed and recycled, thereby improving the utilization rate of resources.

[0041] like Figure 4 As shown, the upper region of the lower stamping rod 42 is provided with a first journal section 421, and the lower region of the upper stamping rod 41 is provided with a second journal section 411. The length of the first journal section 421 is greater than the length of the second journal section 411.

[0042] like Figure 5 As shown, it further includes a protective cover 9, with the rotating table 1 located inside the protective cover 9. The protective cover 9 encloses the rotating table 1 internally, effectively isolating it from external environmental interference, preventing dust or other impurities from entering, and also preventing accidents caused by accidental contact with the rotating table 1 by operators.

[0043] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic tablet compressing device for pharmaceutical use, characterized in that, Includes a rotary table, a rotating mechanism, a lower rail, an upper rail, an upper punch rod, a lower punch rod, and a pressing roller; The rotating mechanism is connected to the rotating platform and is used to drive the rotating platform to rotate. The rotating platform is provided with an upper turntable, a middle turntable and a lower turntable from top to bottom. The turntable is provided with a plurality of spaced-apart stamping sleeves along the circumferential direction. The plurality of upper stamping rods can be raised and lowered in the upper turntable, and the plurality of lower stamping rods can be raised and lowered in the lower turntable, with the lower stamping rods partially located in the stamping sleeves. The lower track is located below the lower turntable and abuts against the bottom of the lower punch rod. The end face of the lower track is provided with an upwardly protruding first arc-shaped section, which is used to push the lower punch rod upward as the turntable rotates. The upper track is located above the upper turntable, and the upper track and the lower track are vertically corresponding. The bottom surface of the upper track is provided with an upwardly protruding second arc segment, which is used to clamp the upper punch rod upward as the turntable rotates. The pressing roller is located on the top of the upper turntable, and the bottom of the pressing roller abuts against the top of the upper punch rod, so as to press the upper punch rod into the punching sleeve as the turntable rotates.

2. The automatic tablet compressing device for pharmaceutical use according to claim 1, characterized in that, The lower stamping rod has a first groove at its top and a second groove at its bottom. When the upper stamping rod is pressed against the stamping sleeve, a cavity for forming a tablet shape is formed between the first groove and the second groove.

3. The automatic tablet compressing device for pharmaceutical use according to claim 2, characterized in that, It also includes a material discharge cylinder, a powder sweeping bin, and a powder sweeping mechanism. The powder sweeping bin is located at the side end of the central turntable and between the upper track and the lower track. The bottom of the powder sweeping bin is provided with an arc-shaped material discharge hole that communicates with the stamping sleeve. The discharge cylinder is connected to the powder sweeping bin. The discharge cylinder is used to transport the powder to the powder sweeping bin. The powder sweeping mechanism is located in the powder sweeping bin. The powder sweeping mechanism is used to sweep the powder from the arc-shaped discharge hole into the first groove of the lower punch rod.

4. The automatic tablet compressing device for pharmaceutical use according to claim 3, characterized in that, The powder sweeping mechanism includes a drive motor, a transmission shaft, a gear assembly, and a powder sweeping impeller; Multiple powder-sweeping impellers are respectively located in the powder-sweeping chamber, and the powder-sweeping impellers are used to sweep the medicine powder into the arc-shaped discharge hole when rotating; The dust-sweeping impeller is connected to the gear assembly via a connecting shaft, and the output shaft of the drive motor is connected to the gear assembly via the transmission shaft. The drive motor is used to drive the dust-sweeping impeller to rotate.

5. The automatic tablet compressing device for pharmaceutical use according to claim 4, characterized in that, It also includes a material discharge chute and a baffle plate. The material discharge chute is located at one end of the powder sweeping bin. The baffle plate is located between the powder sweeping bin and the material discharge chute, and the bottom of the baffle plate abuts against the central turntable. The baffle plate is used to block the formed tablets that are pushed up by the lower punch rod. The material discharge chute is used to receive and discharge the formed tablets.

6. The automatic tablet compressing device for pharmaceutical use according to claim 5, characterized in that, It also includes a negative pressure suction device, which is located at the other end of the powder sweeping chamber. The suction port of the negative pressure suction device is located between the middle rotating plate and the lower rotating plate. The negative pressure suction device is used to adsorb uncompacted drug powder.

7. The automatic tablet compressing device for pharmaceutical use according to claim 2, characterized in that, The upper region of the lower punch rod is provided with a first journal section, and the lower region of the upper punch rod is provided with a second journal section, wherein the length of the first journal section is greater than the length of the second journal section.

8. The automatic tablet compressing device for pharmaceutical use according to claim 1, characterized in that, It also includes a protective cover, and the rotating platform is located inside the protective cover.

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