Tabletting device for pharmaceutical powders

Abstract

The utility model relates to a pharmaceutical machinery technical field, concretely relates to a kind of tableting device for powder continuous compression molding;A kind of tableting device for powder, it includes: rack, its bottom is equipped with trundle, top is equipped with horizontal platform;Shaping component contains concentric interval arrangement's material tray and track disc;The through square slot hole is opened in the circumference of the material tray, and circular slot hole is opened in the corresponding position of track disc;Support column is slidably arranged in circular slot hole, the upper half of support column is square column body adapted to square slot hole, and the lower half is cylindrical body adapted to circular slot hole;Platform vertically is equipped with first shaft rod and passes through material tray and track disc, and first shaft rod is connected platform by bearing seat;Rack is equipped with first motor, and first motor drives first shaft rod to drive material tray and track disc rotation by transmission mechanism synchronously;Platform is along the direction of rotation and is equipped with first ramp and second ramp at intervals, and the highest point height of first ramp is lower than the highest point of second ramp;Compression component contains the stand column symmetrically arranged on the both sides of platform.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical machinery technology, specifically to a tableting device for continuous pressing and molding of pharmaceutical powder. Background Technology

[0002] Existing pharmaceutical powder tableting equipment generally suffers from problems such as low automation, complex structure, or limited production efficiency. For example:

[0003] 1. Poor continuity: Traditional equipment mostly uses single-station pressing, and the powder filling, tableting and ejection need to be carried out in separate steps, which involves manual intervention, resulting in low production efficiency and poor consistency.

[0004] 2. Insufficient structural reliability: Some automated equipment uses a linkage mechanism to drive the lifting and pressing of the support column, but it relies on a single motor to synchronously control the movement of the support column and the pressing column. Long-term operation is prone to mechanical wear, which can cause stroke deviation, resulting in uneven tablet pressing force or tablet ejection failure.

[0005] 3. Weak adaptability to medical scenarios: Hospitals often need to compress their self-developed drug powders into tablets, but existing equipment is bulky and complex to operate, which cannot meet the needs of small-batch, multi-batch production. Furthermore, the ejection mechanism is prone to jamming or tablet breakage due to differences in powder characteristics. Utility Model Content

[0006] To address the issues of poor equipment continuity, tablet weight fluctuations due to wear of a single power source, and high ejection breakage rate in the tableting of hospital-developed powders, this utility model provides a tableting device for powders. Through dual-motor split-drive and a ramp-sequential lifting support column mechanism, it achieves continuous tableting of small batches of powders, zero ejection breakage, and flexible equipment deployment.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: a tableting device for pharmaceutical powder, comprising: a frame with casters at the bottom and a horizontal platform at the top; a shaping component including a material tray and a track tray arranged concentrically at intervals; the material tray has a through square slot in its circumference, and the track tray has a corresponding circular slot; a support column is slidably arranged in the circular slot, the upper half of the support column being a square column adapted to the square slot, and the lower half being a cylinder adapted to the circular slot; a first shaft is vertically arranged on the platform, passing through the material tray and the track tray, and the first shaft is connected to the platform through a bearing seat; a first motor is provided on the frame, and the first motor drives the first shaft to synchronously drive the material tray and the track tray to rotate through a transmission mechanism; the platform rotates along the rotation... The platform is equipped with a first ramp and a second ramp at directional intervals, with the highest point of the first ramp being lower than the highest point of the second ramp. The pressing assembly includes symmetrically arranged columns on both sides of the platform. The upper part of each column is connected to a second shaft via a bearing seat. One end of the second shaft is connected to a second motor via a coupling, and the other end is fitted with a keyed cam. A vertically extending support plate extends from the column, and a pressing column is vertically slidably fitted onto the support plate. The upper half of the pressing column is cylindrical, and the lower half is square. A spring is installed between the pressing column and the support plate. A pressure roller abuts against the cam on the upper half of the pressing column. When the support column is raised via the first ramp, the pressing column is driven to descend by the cam, and the square column part inserts into a square slot to cooperate with the support column in pressing the tablet. When the support column is raised via the second ramp, the tablet is ejected.

[0008] In the aforementioned tableting device for medicinal powder, a roller is hinged to the end of the support column, and a groove for accommodating the roller is provided inside the support column.

[0009] In the above-mentioned tableting device for pharmaceutical powder, the height of the highest point of the first ramp is 1 / 2 of the depth of the square slot, and the height of the highest point of the second ramp is equal to the depth of the square slot.

[0010] In the aforementioned tableting device for pharmaceutical powder, the pressure roller is hinged to the groove of the pressure column via a pin.

[0011] In the aforementioned tableting device for medicinal powder, the lower end of the spring abuts against the support plate, and the upper end abuts against the protruding edge of the upper half of the pressing column.

[0012] The beneficial effects of this utility model are:

[0013] 1. Continuous and efficient production: Multi-station material trays rotate synchronously to complete the entire process of tableting and ejection, reducing manual intervention and improving production efficiency.

[0014] 2. Precise and reliable operation: Dual motors drive the ramp lifting and cam pressing, reducing the weight fluctuation of the tablets caused by wear and tear, and significantly improving the pass rate.

[0015] 3. Strong adaptability to small batches: The caster-mounted mobile frame combined with rollers reduces friction during ejection, thus reducing the breakage rate of tablets and meeting the flexible production needs of hospitals for multiple batches. Attached Figure Description

[0016] The present invention will be further described below with reference to the embodiments and examples.

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment.

[0018] Figure 2 This is a front view structural diagram of an embodiment.

[0019] Figure 3 This is a side view of the structure of an embodiment.

[0020] Figure 4 This is a schematic diagram of the structure of the standardized component.

[0021] Figure 5 This is a schematic diagram of the material tray structure.

[0022] Figure 6 This is a schematic diagram of the track panel structure.

[0023] Figure 7 This is a structural diagram of the support column and rollers.

[0024] Figure 8 This is a schematic diagram of the pressing component.

[0025] In the diagram: 1. Frame; 2. Platform; 3. Shaping assembly; 31. Material tray; 311. Square slot; 32. Rail tray; 321. Circular slot; 33. Support column; 34. Roller; 35. First motor; 36. First shaft; 37. First ramp; 38. Second ramp; 4. Pressing assembly; 41. Column; 42. Second motor; 43. Second shaft; 44. Cam; 45. Spring; 46. Pressure roller; 47. Pressure column; 48. Support plate. Detailed Implementation

[0026] The tablet compressing device for pharmaceutical powder in this embodiment is mainly used to compress pharmaceutical powder into tablets for subsequent packaging and use, such as... Figure 1-8 As shown, the device mainly consists of three parts: frame 1, shaping component 3, and pressing component 4. Frame 1 is the basic support structure of the entire tablet pressing device. It is arranged vertically to ensure the stability and reliability of the device. Casters are evenly arranged around the bottom of frame 1. These casters not only have the function of walking but also have a certain shock absorption performance, which facilitates the movement and handling of the entire device between different work sites. The casters are usually made of high-strength and wear-resistant materials to meet the needs of long-term and high-frequency use. Platform 2 is arranged horizontally on the top of frame 1. Platform 2 serves as the installation base for each component. Its surface is specially treated to have high flatness and wear resistance to ensure the installation accuracy and operational stability of each component. Platform 2 has multiple mounting holes and positioning slots to facilitate the quick installation and positioning of shaping component 3 and pressing component 4.

[0027] The shaping component 3 is one of the core parts of the tableting device, mainly responsible for the loading and unloading of the drug powder. This component includes key components such as the material tray 31, the guide tray 32, the support column 33, the ramp, the roller 34, the first motor 35, and the first shaft 36. Both the material tray 31 and the guide tray 32 are disc-shaped structures with a certain thickness. They are arranged concentrically and at intervals. The upper part of the material tray 31 has through square slots 311 evenly spaced around its circumference. The number and size of these square slots 311 can be adjusted according to actual production needs for placing... The bottom of each square slot 311 of the powder to be compressed is finely processed to ensure that the powder is evenly distributed and to avoid uneven compaction. A circular slot 321 is formed on the upper part of the track plate 32 at a position corresponding to the square slot 311. A liftable support column 33 is slidably arranged inside the circular slot 321. The upper half of the support column 33 is a square column that fits into the square slot 311, and the lower half is a cylinder that fits into the circular slot 321. This design allows the support column 33 to be stably positioned within both the square slot 311 and the circular slot 321. The platform 2 is raised and lowered while ensuring a tight fit between the support column 33 and the square slot 311 to prevent powder leakage. A first shaft 36 is vertically arranged on the upper part of the platform 2, penetrating the material tray 31 and the track plate 32. The first shaft 36 is connected to the platform 2 via a bearing seat to ensure stable rotation. The bearing seat uses a high-precision, low-friction bearing to reduce energy loss and heat generation during rotation. The first shaft 36 is welded to the material tray 31 and the track plate 32, allowing the material tray 31 and the track plate 32 to move with the first shaft 36. Synchronous rotation enables multi-station powder loading and unloading operations. A first motor 35 is arranged on the upper part of the frame 1. The first motor 35 is connected to the frame 1 by bolts, and its output shaft is arranged vertically upward. The output shaft of the first motor 35 and the first shaft 36 are keyed to pulleys, and the pulleys are covered with transmission belts. This transmission method has the advantages of simple structure, high transmission efficiency and low noise. When the first motor 35 starts, the first shaft 36 drives the material tray 31 and the track tray 32 to rotate synchronously through the transmission action of the pulleys and belts.

[0028] To facilitate the lifting and lowering of the support column 33, two ramps 37 and 38 of different heights are arranged at intervals on the upper part of the platform 2 along the rotation direction of the material tray 31. The highest point of the first ramp 37 is half the depth of the square slot 311. When the support column 33 rolls to the first ramp 37, it rises to a certain height, cooperating with the pressing component 4 to compress and shape the powder into tablets. At this time, the upper surface of the support column 33 is flush with or slightly lower than the upper surface of the square slot 311, ensuring that the pressing column 47 can smoothly enter the square slot 311 for tableting. The highest point of the second ramp 38 is equal to the depth of the square slot 311. When the support column 33 rolls to the second ramp 38, it rises to its highest point, pushing the shaped tablets out of the square slot 311, facilitating subsequent tablet collection. Afterwards, to facilitate collection and packaging, in order to reduce frictional loss between the lower end of the support column 33 and the ramp, a roller 34 is added to the end of the support column 33 and hinged thereto. The inside of the support column 33 is provided with a groove to accommodate the roller 34. The roller 34 is hinged to the support column 33 by a pin, so that the roller 34 can rotate freely. When the support column 33 rolls on the ramp, the roller 34 and the ramp form rolling contact, which greatly reduces the frictional loss between the two and extends the service life of the support column 33 and the ramp. In addition, in order to ensure the stability and accuracy of the support column 33 during the lifting process, the support column 33 and the circular slot 321 adopt a clearance fit and are coated with an appropriate amount of grease. At the same time, the rotation speed of the material tray 31 and the track tray 32 can be precisely controlled by adjusting the speed of the first motor 35 to meet the tableting requirements of different powders.

[0029] The compression assembly 4 is another core part of the tableting device, mainly responsible for compressing the drug powder into tablets. This assembly includes key components such as a column 41, a second motor 42, a second shaft 43, a cam 44, a spring 45, a pressure roller 46, a pressure column 47, and a support plate 48. The column 41 is symmetrically and vertically arranged on both sides of the platform 2. The column 41 is made of high-strength and lightweight materials to ensure the overall stability and portability of the device. The second shaft 43 is horizontally mounted on the upper part of the column 41 and connected to it through a bearing seat. The bearing seat also uses a high-precision, low-friction bearing to reduce energy loss and heat generation during rotation. One end of the second shaft 43... A second motor 42 is arranged on the upper part of the column 41 and connected to it via a coupling. The coupling is an elastic coupling, which can absorb and buffer the impact force when the motor starts and stops, protecting the second shaft 43 and the motor from damage. The second motor 42 drives the second shaft 43 to rotate, providing a power source for the pressing assembly 4. A cam 44 is fitted on the upper part of the second shaft 43 and connected to it via a key. The cam 44 rotates synchronously with the second shaft 43. The profile of the cam 44 is carefully designed to ensure that the pressing column 47 can obtain stable downward pressure and upward force during the lifting process. The surface of the cam 44 is hardened to improve its wear resistance and service life.

[0030] A support plate 48 extends vertically outward from the column 41 near the cam 44. The support plate 48 is made of high-strength, rigid material to ensure it can withstand the enormous pressure of the pressure column 47 during the pressing process. A pressure column 47, which is sleeved and connected to the support plate 48 and can slide longitudinally back and forth, is vertically arranged on the upper part of the support plate 48. The pressure column 47 has the same structure as the support column 33, with an upper cylindrical part and a lower square column. The square column part of the pressure column 47 can penetrate into the square slot 311 of the material tray 31 to cooperate with the support column 33 for tableting of the powder. The pressure column 47 and the support plate 48... A spring 45 is arranged between the support plate 48 and the pressure column 47. The lower end of the spring 45 abuts against the upper surface of the support plate 48, and the upper end of the spring 45 abuts against the protruding edge extending from the upper half of the pressure column 47. The spring 45 plays a restoring role, so that the pressure column 47 can be kept in the upper position when no external force is applied. When the cam 44 rotates to the pressing position, the cam 44 transmits the downward pressure to the pressure column 47 through the pressure roller 46, so that the pressure column 47 descends and enters the square slot 311 to cooperate with the support column 33 to press the powder. At this time, the spring 45 is compressed and stores elastic potential energy. When the cam 44 rotates to the rising position... When in position, spring 45 releases its elastic potential energy, pushing pressure column 47 to the upper position, awaiting the next pressing operation. To enable cam 44 to rotate and drive pressure column 47 for longitudinal lifting and lowering, a pressure roller 46 is added to the upper part of pressure column 47 to abut against cam 44. A groove is provided in the cylindrical part to accommodate the pressure roller 46, and the pressure roller 46 is pin-connected to the cylinder. This connection method allows the pressure roller 46 to roll with cam 44 and transmit the downward pressure from cam 44 to pressure column 47, realizing the lifting and lowering operation of pressure column 47. Wheel 46 is made of high-strength, wear-resistant material to ensure that it can withstand the huge pressure when cam 44 rotates. In addition, in order to reduce the frictional resistance between pressure column 47 and support plate 48, a bushing can be added to the upper part of support plate 48. The bushing is made of self-lubricating material and has good wear resistance and self-lubricating properties. When pressure column 47 slides in bushing, the frictional resistance is greatly reduced, making the lifting and lowering movement of pressure column 47 smoother. At the same time, bushing can also play a guiding role to ensure that pressure column 47 remains vertical during lifting and lowering, avoiding skewness or jamming.

[0031] In actual use, the weighed pharmaceutical powder to be pressed is first manually placed into the square slot 311 of the material tray 31. Then, the first motor 35 and the second motor 42 are started. The first motor 35 drives the material tray 31 and the track plate 32 to rotate synchronously through the first shaft 36, so that the support column 33 passes through the first ramp 37 and the second ramp 38 in sequence. When the support column 33 rolls to the first ramp 37, the support column 33 rises to a certain height, and cooperates with the pressing component 4 to perform tableting and shaping operations on the pharmaceutical powder. At the same time, the second motor 42 drives the first motor 35 to rotate. The rotation of the second shaft 43 drives the cam 44 to rotate. The cam 44 transmits downward pressure to the pressure column 47 through the pressure roller 46, causing the pressure column 47 to descend and penetrate into the square slot 311 to cooperate with the support column 33 to press and shape the medicine powder. When the cam 44 rotates to the rising position, the spring 45 releases elastic potential energy, pushing the pressure column 47 to the upper position. When the support column 33 rolls to the second ramp 38, the support column 33 rises to the highest point, pushing the shaped medicine tablet out of the square slot 311, which facilitates the subsequent collection of the medicine tablet.

[0032] The tableting device for pharmaceutical powder in this embodiment has the advantages of compact structure, simple operation, high degree of automation, and high production efficiency. By rationally designing the structure and cooperation relationship between the shaping component 3 and the pressing component 4, efficient and stable tableting operation of pharmaceutical powder is achieved. At the same time, by adopting high-strength, wear-resistant materials and advanced processing technology, the reliability and service life of the device are ensured. This device can be widely used in pharmaceutical, chemical, food and other industries, providing strong technical support for production in related fields.

Claims

1. A tableting device for pharmaceutical powder, characterized in that: include The frame is equipped with casters at the bottom and a horizontal platform at the top. The shaping assembly includes a material tray and a track tray arranged concentrically at intervals; the material tray has a through square slot in its circumference, and the track tray has a corresponding circular slot; a support column is slidably installed in the circular slot, the upper half of the support column being a square column adapted to the square slot, and the lower half being a cylinder adapted to the circular slot; a first shaft is vertically installed on the platform, passing through the material tray and the track tray, and the first shaft is connected to the platform through a bearing seat; a first motor is installed on the frame, and the first motor drives the first shaft to synchronously rotate the material tray and the track tray through a transmission mechanism; the platform has a first ramp and a second ramp at intervals along the rotation direction, and the highest point of the first ramp is lower than the highest point of the second ramp; The pressing assembly includes columns symmetrically arranged on both sides of the platform. The upper part of the columns is connected to a second shaft via a bearing seat. One end of the second shaft is connected to a second motor via a coupling, and the other end is fitted with a keyed cam. The columns extend vertically to support plates, and the support plates slide vertically to fit a pressing column. The upper half of the pressing column is a cylinder, and the lower half is a square column. A spring is provided between the pressing column and the support plate. The upper half of the pressing column is provided with a pressing roller that abuts against the cam. When the support column is raised via the first ramp, the pressure column is driven by the cam to descend, and the square column body is inserted into the square slot to cooperate with the support column to press the tablet; when the support column is raised via the second ramp, the tablet is ejected.

2. The tablet compressing device for pharmaceutical powder according to claim 1, characterized in that: The end of the support column is hinged to a roller, and the inside of the support column is provided with a groove to accommodate the roller.

3. The tablet compressing device for pharmaceutical powder according to claim 1, characterized in that: The height of the highest point of the first ramp is half the depth of the square slot, and the height of the highest point of the second ramp is equal to the depth of the square slot.

4. The tablet compressing device for pharmaceutical powder according to claim 1, characterized in that: The pressure roller is hinged to the groove of the pressure column by a pin.

5. The tablet compressing device for pharmaceutical powder according to claim 1, characterized in that: The lower end of the spring abuts against the support plate, and the upper end abuts against the protruding edge of the upper half of the pressure column.

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