High-speed tablet press for pharmacy

Abstract

The invention relates to a pharmaceutical high-speed tablet press, which relates to the technical field of pharmaceutical equipment, and comprises a box body, a tablet pressing mechanism, a middle mold disc, a module, a feeding part, a discharging part, a fastening assembly and a jacking assembly. The tabletting mechanism is mounted in the box body and is used for pressing the medicine powder into tablets; the middle mold disc is installed on the driving piece, and the module is installed in the middle mold disc in a sliding mode and used for making pressed tablets have specific shapes; the feeding piece is installed on the tabletting mechanism and used for adding medicine powder into the tabletting mechanism. The discharging piece is installed on the tablet pressing mechanism and used for conveying pressed tablets out of the box body. An annular fastening cavity is formed in the middle mold disc, the fastening assembly is installed in the fastening cavity, and the fastening assembly is used for clamping the module on the middle mold disc; the jacking assembly is installed on the lower punching piece and used for jacking the module out of the middle mold disc. The die changing device has the effect of improving the die changing efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of pharmaceutical equipment, and in particular to a high-speed tablet press for pharmaceutical use. Background Art

[0002] Tablet press is an indispensable key equipment in the pharmaceutical industry and is widely used in the production and processing of various drugs. With the rapid development of the pharmaceutical industry, tablet presses not only need to have efficient production capacity, but also need to be able to flexibly adapt to the production of tablets of different shapes to meet diverse product needs.

[0003] Existing tablet presses produce tablets of different shapes by replacing punches and die blocks. Punches are easy to replace, while the connection between the die and the die plate is usually interference fit and fixed by locking screws. When replacing the die, the operator needs to unscrew the screws of each die one by one and replace the die one by one with the help of a small jack.

[0004] Regarding the above-mentioned related technologies, since the middle punch die and the middle punch plate are interference fit and fixed by locking screws, the process of replacing the middle punch die is time-consuming, which affects the efficiency of die change. Summary of the invention

[0005] In order to improve the efficiency of mold changing, the present application provides a high-speed tablet press for pharmaceutical use.

[0006] The present application provides a pharmaceutical high-speed tablet press, which adopts the following technical solution: A high-speed tablet press for pharmaceutical use, comprising: A box body, wherein a loading port is provided on the box body; A tablet pressing mechanism, the tablet pressing mechanism is installed in the box body, the tablet pressing mechanism comprises an upper punch, a lower punch and a driving member, the upper punch is installed in the box body, the lower punch is located below the upper punch, the driving member is installed on the box body, and the tablet pressing mechanism is used to press the medicine powder into a sheet; A middle die plate, the middle die plate is mounted on the driving member, a plurality of mounting holes are arranged on the middle die plate at intervals in the circumferential direction with the axis of the middle die plate as the center, and an annular fastening cavity is provided in the middle die plate; Module, the module is slidably mounted in the mounting hole, the number of the modules corresponds to the number of the mounting holes, the module is interference-connected with the middle die plate, a clamping groove is provided on the module, a tablet pressing hole is provided on the module, and the module is used to make the pressed tablets have a specific shape; A feeding piece, which is installed on the tablet pressing mechanism and is used to add medicine powder into the tablet pressing mechanism; A feeding piece, which is mounted on the tablet pressing mechanism and is used to convey the pressed tablets out of the box; A fastening assembly, the fastening assembly is installed in the fastening cavity, and the fastening assembly is used to clamp the module on the middle mold plate; A lifting assembly is installed on the lower punch, and the lifting assembly is located on one side of the blanking piece. The lifting assembly is used to eject the module from the middle mold plate after the blanking is completed.

[0007] By adopting the above technical solution, the medicine powder is added to the tablet pressing mechanism through the feeding member, and the tablet pressing mechanism includes an upper punch, a lower punch and a driving member, which can realize the pressing of the medicine powder, and the pressed tablets are automatically discharged through the feeding member, which reduces manual intervention and improves production efficiency. When drugs of different shapes need to be pressed, the fastening of the module can be released relatively quickly by driving the fastening assembly, and then the module can be quickly ejected from the middle mold plate using the lifting assembly to achieve rapid disassembly of the module, thereby quickly replacing modules of different shapes, avoiding the tedious process of unscrewing the screws one by one in the traditional method, shortening the replacement time and improving the mold change efficiency.

[0008] Optionally, the upper punch comprises: A track plate, the track plate is fixedly mounted on the top of the inner wall of the box body, and a rotating track is arranged on the track plate; A rotating shaft, one end of which is coaxially and rotatably mounted on the track plate, the rotating shaft passes through the middle mold plate, and is coaxially and fixedly connected to the middle mold plate; An upper rotating table, the upper rotating table is coaxially fixedly mounted on the rotating shaft, and the upper rotating table is located between the track plate and the middle mold plate; An upper punch, wherein the number of the upper punches corresponds to the number of the modules, the upper punches are located directly above the modules, the upper punches penetrate the upper rotating platform, and the upper punches are slidably installed in the rotating track; An upper pressing wheel, the upper pressing wheel being rotatably mounted on the track plate, and the upper pressing wheel being used to press down the upper punch moving to the upper pressing wheel; An upper pressure motor, wherein the fixed end of the upper pressure motor is fixedly installed in the track plate, and the output end of the upper pressure motor is coaxially fixedly connected with the upper pressure wheel.

[0009] By adopting the above technical solution, the rotating track on the track disk enables the upper punch to move stably on the predetermined path. During the pressing process, the rotating shaft drives the middle die disk and the upper rotating table to rotate, thereby driving the upper punch to move in the rotating track. When the upper punch rotates to the tablet pressing station, the upper pressing wheel cooperates with the upper pressing motor to realize the automatic downward pressing of the upper punch, pressing the upper punch into the module, thereby improving the pressing efficiency and accuracy. The upper punch can realize precise control of the up and down movement of the upper punch.

[0010] Optionally, the lower punch comprises: A support plate, wherein the support plate is fixedly mounted on the box body, and one end of the rotating shaft away from the track plate is rotatably mounted on the support plate, and the support plate is located below the middle mold plate; A lower rotating table, the lower rotating table is coaxially fixedly mounted on the rotating shaft, and the lower rotating table is located between the middle mold plate and the supporting plate; A lower punch, wherein the number of the lower punches corresponds to the number of the upper punches, the lower punches are located directly below the upper punches, one end of the lower punches abuts against the support plate, the lower punches penetrate the lower rotating table, and the lower punches are slidably mounted on the lower rotating table; A downward pressing motor, the fixed end of which is fixedly mounted on the supporting plate; A lower pressing wheel is coaxially fixedly connected to the output end of the lower pressing motor, and the lower pressing wheel is located directly below the upper pressing wheel. The lower pressing wheel is used to move the lower punch moved to the lower pressing wheel upward.

[0011] By adopting the above technical scheme, in the process of pressing tablets, the rotating shaft drives the lower rotating table to rotate, and is synchronized with the rotation of the upper rotating table. The lower punch moves accurately under the drive of the lower rotating table. At the same time, the lower pressing motor and the lower pressing wheel are used in coordination to realize the automatic up and down movement of the lower punch, so that the lower punch and the upper punch move synchronously. The lower punch and the upper punch cooperate accurately and are pressed into the module at the same time to press the powder into tablets, thereby realizing efficient pressing of tablets.

[0012] Optionally, the driving member is a driving motor, a fixed end of the driving motor is fixedly mounted on the bottom of the inner wall of the box, and an output end of the driving motor is coaxially fixedly connected to the rotating shaft.

[0013] By adopting the above technical solution, the driving motor is used as the driving part to drive the rotating shaft to rotate, and the rotating shaft drives the upper rotating table, the middle mold plate and the lower rotating table to rotate synchronously, so that the upper punch and the lower punch are precisely matched. The tableting efficiency can be adjusted by controlling the speed of the driving motor to achieve efficient tableting.

[0014] Optionally, the fastening assembly includes: A fixing ring, the fixing ring being fixedly installed in the fastening cavity; A rotating ring, wherein the number of the rotating rings corresponds to the number of the modules, the rotating rings are sleeved on the fixed ring at intervals, the rotating ring is rotatably connected to the fixed ring, and two connecting rods are symmetrically and hingedly arranged on the rotating ring; A clamping rod, wherein the number of the clamping rods corresponds to the number of the modules, the two ends of the clamping rod are respectively hinged to the two adjacent connecting rods on the two adjacent rotating rings, and the clamping rod is adapted to the clamping groove; A gear, the gear being rotatably mounted on the fixed ring, and the gear being fixedly connected to two adjacent rotating rings via a connecting rod; A rack is slidably mounted on the middle mold plate, the rack is meshed with the gear, and one end of the rack passes through the middle mold plate.

[0015] By adopting the above technical solution, when the module needs to be replaced, it is only necessary to push the rack to drive the gear to rotate, so that each rotating ring rotates synchronously, and then the clamping rod is driven by the connecting rod to release from the clamping groove, thereby releasing the lock of all modules in the middle mold plate. The whole process is simple and fast, which greatly saves the replacement time and reduces the labor intensity. When the module needs to be locked after replacement, push the rack in the opposite direction to quickly lock all modules. This fastening assembly realizes the rapid clamping and removal of the module on the middle die plate, avoiding the tedious operation of traditional screws fixing one by one, and improving the die changing efficiency of the tablet press.

[0016] Optionally, the lifting assembly includes: A jacking box, the jacking box is fixedly mounted on the support plate; A slider, the slider is slidably mounted in the jacking box, and the upper surface of the slider is inclined; A jacking block, the jacking block is arranged above the jacking box; A transition plate, wherein there are two transition plates, and the two transition plates are respectively hinged on both sides of the lifting block; A slide rod, wherein the slide rod passes through the jacking box, and one end of the slide rod is fixedly connected to the jacking block; A pulley, the pulley is rotatably mounted on an end of the slide bar away from the jacking box, and the pulley is slidably arranged on the upper surface of the slide block; A spring, wherein the spring is arranged in the jacking box, and the two ends of the spring are fixedly connected to the jacking box and the jacking block respectively, and in an initial state, the spring is in a stretched state; A driving rod, one end of which is fixedly mounted on the sliding block, and the other end of which passes through the jacking box.

[0017] By adopting the above technical solution, when replacing the module, after the driving fastening assembly releases the fastening effect on the module, the driving rod is pushed to move the slider, thereby driving the pulley to rotate on the pulley surface, and at the same time driving the slide rod to slide upward, the spring is compressed, and the lifting block is lifted upward. After moving upward, it is only necessary to drive the rotating shaft to rotate one circle to complete the lifting of all modules. The transition plates hinged on both sides of the lifting block can enable the lower punch to climb smoothly onto the lifting block. The lifting assembly significantly improves the speed and convenience of module replacement, reduces the time and labor intensity of manual operation, and realizes fast and convenient ejection of the module from the middle mold plate.

[0018] Optionally, the loading piece is located on one side of the upper pressing wheel and the lower pressing wheel, and the loading piece includes: A hopper, wherein the hopper is arranged on the feeding port; A feeding tray, the feeding tray is fixedly mounted on the hopper, the feeding tray is communicated with the hopper, a feeding hole is provided at the bottom of the feeding tray, and the feeding hole is located above the tableting hole; A scraper is fixedly mounted on the feeding plate, and the scraper abuts against the middle mold plate.

[0019] By adopting the above technical solution, when feeding the tablet press, the powder enters the feeding plate through the hopper. As the middle die plate rotates, the powder in the feeding plate is evenly fed into the tableting holes on the module, ensuring that each module can obtain enough powder. The scraper scrapes the excess powder back to the feeding plate, effectively preventing the accumulation or uneven distribution of powder during the feeding process, ensuring the consistency of thickness and density of the tablets, and improving the tableting quality.

[0020] Optionally, the unloading piece is located on a side of the upper pressing wheel and the lower pressing wheel away from the loading piece, and the unloading piece includes: A material discharge protrusion, wherein the material discharge protrusion is fixedly mounted on the support plate; A material discharge chute, the material discharge chute is fixedly mounted on the box body, and one end of the material discharge chute abuts against the middle mold plate; A baffle is fixedly mounted on the feed chute, the baffle abuts against the middle die plate, and is used to block the compressed tablets.

[0021] By adopting the above technical solution, after tableting is completed, the tablets are ejected from the tableting hole by the discharge protrusion, and the baffle prevents the ejected tablets from continuing to rotate with the middle die plate. Under the action of the baffle, the tablets move to the lower chute and are discharged from the tablet press through the discharge chute. The discharge chute prevents the tablets from splashing or falling during the discharge process, thereby ensuring the integrity of the tablets and the cleanliness of the production environment.

[0022] Optionally, a plurality of inspection doors are installed on the box body.

[0023] By adopting the above technical solution, installing multiple inspection doors can facilitate operators to quickly access the interior of the tablet press for inspection and maintenance, thereby improving the maintainability of the equipment and the troubleshooting efficiency.

[0024] Optionally, the inspection door is made of transparent material.

[0025] By adopting the above technical solution, the operator can directly observe the working status inside the tablet press, find abnormal conditions in time and deal with them, thus improving the safety and reliability of equipment operation. At the same time, the use of transparent materials also facilitates daily maintenance and inspection, reducing the inconvenience caused by frequent opening of the inspection door.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the fastening components and lifting components, the module can be quickly loaded and unloaded, which significantly shortens the replacement time of the middle punch die and improves the die change efficiency; 2. The interference fit between the module and the middle die plate combined with the clamping action of the fastening assembly ensures the stability and reliability of the module during tableting, avoiding the problem of unstable tablet quality caused by looseness; 3. The reasonable design of the loading and unloading parts ensures the uniform supply of medicine powder and the smooth transportation of tablets, further improving the overall operation efficiency and product quality of the tablet press. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a high-speed tablet press according to an embodiment of the present application; Figure 2 is a cross-sectional view of a high-speed tablet press according to an embodiment of the present application; Figure 3 This is a schematic diagram of the structure of the tablet pressing mechanism in the embodiment of the present application; Figure 4 It is a cross-sectional view of an embodiment of the present application for showing a fastening assembly; Figure 5 It is a cross-sectional view of an embodiment of the present application for showing a jacking assembly; Figure 6 This is an embodiment of the present application Figure 5 A local enlarged view of point A; Figure 7 This is a cross-sectional view of a display module according to an embodiment of the present application.

[0028] Description of reference numerals: 1. Box body; 2. Tablet pressing mechanism; 21. Upper punch; 211. Track plate; 2111. Rotating track; 212. Rotating shaft; 213. Upper rotating table; 214. Upper punch; 215. Upper pressing wheel; 216. Upper pressing motor; 22. Lower punch; 221. Support plate; 222. Lower rotating table; 223. Lower punch; 224. Lower pressing motor; 225. Lower pressing wheel; 23. Driving member; 231. Driving motor; 3. Middle die plate; 31. Fastening cavity; 4. Module; 41. Clamping groove; 42. Pressing hole; 5. Loading part; 51. Hopper; 52. Feeding plate; 53. Scraper; 6. Unloading part; 61. Unloading protrusion; 62. Unloading chute; 63. Baffle; 7. Fastening assembly; 71. Fixed ring; 72. Rotating ring; 73. Connecting rod; 74. Clamping rod; 75. Gear; 76. Rack; 8. Lifting assembly; 81. Lifting box; 82. Sliding block; 83. Lifting block; 84. Transition plate; 85. Sliding rod; 86. Pulley; 87. Spring; 88. Driving rod; 9. Inspection door. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0032] The following is combined with Figure 1-7This application is described in further detail.

[0033] The embodiment of the present application discloses a high-speed tablet press for pharmaceutical use.

[0034] Reference Figure 1 , Figure 2 and Figure 3 The pharmaceutical high-speed tablet press comprises a housing 1, a tablet pressing mechanism 2, a middle die plate 3, a module 4, a feeding member 5, a feeding member 6, a fastening assembly 7 and a lifting assembly 8. The tablet pressing mechanism 2 is installed in the housing 1, and the tablet pressing mechanism 2 comprises an upper punch 21, a lower punch 22 and a driving member 23. The tablet pressing mechanism 2 is used to press the medicine powder into a sheet; the middle die plate 3 is installed on the driving member 23, and eight mounting holes are arranged on the middle die plate 3 with the axis of the middle die plate 3 as the center and spaced circumferentially.

[0035] Reference Figure 1 and Figure 2 , module 4 is slidably installed in the mounting hole, the number of modules 4 corresponds to the number of mounting holes, module 4 and the middle die plate 3 are interference connected, and module 4 is used to make the compressed tablets have a specific shape; the loading piece 5 is installed on the tablet pressing mechanism 2, and the loading piece 5 is used to add powder into the tablet pressing mechanism 2, and the unloading piece 6 is installed on the tablet pressing mechanism 2, and the unloading piece 6 is used to transport the compressed tablets out of the box 1.

[0036] Reference Figure 3 and Figure 5 An annular fastening cavity 31 is provided in the middle mold plate 3, and the fastening assembly 7 is installed in the fastening cavity 31. The fastening assembly 7 is used to clamp the module 4 on the middle mold plate 3; the lifting assembly 8 is installed on the lower punch 22, and the lifting assembly 8 is located on one side of the blanking part 6. The lifting assembly 8 is used to eject the module 4 from the middle mold plate 3.

[0037] When tableting begins, the driving member 23 is started, and the middle die plate 3 begins to rotate at a constant speed around its axis in the box body 1. During the rotation, when the module 4 rotates to the loading position, the powder is put into the tableting hole 42 of the module 4. The powder is filled into the module 4 under the action of gravity and the pushing action of the loading member 5, preparing for subsequent tableting.

[0038] As the middle die plate 3 continues to rotate, the module 4 filled with powder arrives at the tableting area. At this time, the upper punch 21 punches downward, and the upper punch 21 and the lower punch 22 apply pressure to the powder in the module 4. The powder is compacted and formed in the specific shape space defined by the module 4 to form tablets with a predetermined shape and size. After the tableting is completed, the middle die plate 3 continues to rotate, and the module 4 with the pressed tablets rotates to the unloading position and falls into the tablet collection container under the action of the unloading member 6.

[0039] When it is necessary to replace the module 4 to produce tablets of different shapes or specifications, the lifting assembly 8 is driven. The lifting assembly 8 generates an upward ejection force under the linkage cooperation with the lower punch 22. Since the module 4 and the middle die plate 3 are in interference connection, the force of the lifting assembly 8 overcomes the connection resistance and gradually ejects the module 4 from the mounting hole of the middle die plate 3. The operator can use special tools to assist in removing the module 4 and carefully install the new module 4 into the mounting hole to complete the efficient disassembly and assembly of the module 4.

[0040] Reference Figure 3 The feeding member 5 is located on one side of the upper pressing wheel 215 and the lower pressing wheel 225, and the feeding member 5 includes a hopper 51, a feeding tray 52 and a scraper 53. A feeding port is provided on the box body 1, and the hopper 51 is arranged on the feeding port. The feeding tray 52 is fixedly mounted on the hopper 51, and the feeding tray 52 is connected with the hopper 51. The bottom of the feeding tray 52 abuts on the middle mold plate 3, and a feeding hole is provided at the bottom of the feeding tray 52, so that when the middle mold plate 3 rotates, the powder can leak into the tableting hole 42, and the scraper 53 is fixedly mounted on the feeding tray 52, and the scraper 53 abuts against the middle mold plate 3.

[0041] During tableting, the medicine powder to be tableted is poured into the hopper 51. The hopper 51 serves as a storage container for the medicine powder and provides a material source for the subsequent feeding operation. The driving member 23 is started and the middle die plate 3 rotates. Since the feeding plate 52 is connected to the hopper 51, the medicine powder gradually flows into the feeding plate 52 under the action of gravity. When the middle die plate 3 rotates to the loading position, the medicine powder in the feeding plate 52 enters the tableting hole 42 on the module 4, and the scraper 53 leaves the excess medicine powder in the feeding plate 52, and then the medicine powder is leveled and quantitatively controlled, so that the mounting holes of each module 4 can be filled with approximately the same amount of medicine powder to ensure that the quality of the pressed tablets is uniform and stable, thereby realizing continuous and efficient feeding operations and meeting the material supply requirements of high-speed tableting.

[0042] Reference Figure 2 and Figure 3 The upper punch 21 includes a track plate 211, a rotating shaft 212, an upper rotating platform 213, an upper punch 214, an upper pressing wheel 215 and an upper pressing motor 216. The track plate 211 is fixedly mounted on the top of the inner wall of the box body 1, and a rotating track 2111 is arranged on the track plate 211. The rotating track 2111 is arranged on the side wall of the track plate 211. The rotating shaft 212 is vertically arranged, and one end of the rotating shaft 212 is coaxially and rotatably mounted on the track plate 211. The rotating shaft 212 passes through the middle mold plate 3 and is coaxially and fixedly connected with the middle mold plate 3.

[0043] Reference Figure 2 and Figure 3The upper rotating table 213 is coaxially fixedly installed on the rotating shaft 212. The upper rotating table 213 is located between the track disk 211 and the middle mold disk 3. The number and position of the upper punch 214 correspond to the module 4 one by one. The upper punch 214 is vertically arranged. The upper punch 214 is located at one end of the track disk 211 as the tail. The upper punch 214 passes through the upper rotating table 213, and the tail of the upper punch 214 is slidably installed in the rotating track 2111. The head of the upper punch 214 is located directly above the tablet pressing hole 42 of the module 4, and the head of the upper punch 214 is adapted to the shape of the tablet pressing hole 42.

[0044] Reference Figure 2 and Figure 3 The upper pressing wheel 215 is rotatably mounted on the track plate 211. The upper pressing wheel 215 is used to press the upper punch 214 that moves to the upper pressing wheel 215 down into the sheet pressing hole 42. The fixed end of the upper pressing motor 216 is fixedly mounted in the track plate 211. The output end of the upper pressing motor 216 is coaxially fixedly connected to the upper pressing wheel 215.

[0045] When the tablet press is started, the driving member 23 and the upper pressing motor 216 are turned on. The driving member 23 drives the rotating shaft 212 to rotate, and the middle die plate 3 also starts to rotate synchronously around its axis, thereby driving the upper rotating table 213 to rotate synchronously. As the upper rotating table 213 rotates, the upper punch 214 also starts to make circular motion, and at the same time moves vertically under the action of the rotating track 2111. When a certain upper punch 214 rotates with the upper rotating table 213 to a contact position with the upper pressing wheel 215, the upper pressing motor 216 drives the upper pressing wheel 215 to rotate. Since the upper punch 214 is in contact with the upper pressing wheel 215 and is in a specific position relationship within the rotating track 2111, the rotation of the upper pressing wheel 215 will apply a downward pressure to the upper punch 214, causing the upper punch 214 to slide downward along the rotating track 2111, thereby punching the powder in the corresponding module 4 of the middle die plate 3.

[0046] After the punching is completed, as the upper rotating table 213 continues to rotate, the upper punch 214 gradually resets upward under the constraint of the rotating track 2111, and breaks away from the contact with the upper pressing wheel 215, preparing for the next round of punching cycle. In this way, the upper punch 214 is driven by the upper pressing wheel 215 to punch the powder at the corresponding position according to a fixed rhythm and sequence during the rotation of the middle die plate 3, so that the powder is pressed into shape in the module 4, ensuring that the tableting process is carried out efficiently, stably and accurately, meeting the process requirements of high-speed continuous production of tablets.

[0047] Reference Figure 2 and Figure 3The lower punch 22 includes a support plate 221, a lower rotating table 222, a lower punch 223, a lower pressing motor 224 and a lower pressing wheel 225. The support plate 221 is fixedly mounted on the box body 1, and one end of the rotating shaft 212 away from the track plate 211 is coaxially rotatably mounted on the support plate 221, and the support plate 221 is located below the middle mold plate 3.

[0048] Reference Figure 2 and Figure 3 The lower rotating table 222 is coaxially fixedly installed on the rotating shaft 212, the lower rotating table 222 is located between the middle die plate 3 and the supporting plate 221, the lower punch 223 is vertically arranged, and the end of the lower punch 223 close to the supporting plate 221 is the tail. The number and position of the lower punch 223 and the upper punch 214 correspond one to one. The lower punch 223 is always located directly below the upper punch 214, and the tail of the lower punch 223 abuts on the supporting plate 221. The lower punch 223 passes through the lower rotating table 222 and is slidably installed on the lower rotating table 222. The head of the lower punch 223 is located in the tablet pressing hole 42, and the head of the lower punch 223 is adapted to the shape of the tablet pressing hole 42.

[0049] Reference Figure 2 and Figure 3 The fixed end of the pressing motor 224 is fixedly mounted on the support plate 221 , and the lower pressing wheel 225 is coaxially fixedly connected to the output end of the pressing motor 224 . The lower pressing wheel 225 is used to press the lower punch 223 that moves to the lower pressing wheel 225 into the tablet pressing hole 42 .

[0050] When the tablet press is running, the driving member 23, the upper pressing motor 216 and the lower pressing motor 224 are started. As the upper punch 21 moves, the rotating shaft 212 rotates to drive the middle die plate 3 to rotate, so that the lower rotating table 222 also rotates together. When a lower punch 223 rotates to a position in contact with the lower pressing wheel 225 along with the lower rotating table 222, the lower pressing motor 224 drives the lower pressing wheel 225 to rotate. Due to the contact relationship between the lower pressing wheel 225 and the lower punch 223, the lower pressing wheel 225 gives the lower punch 223 an upward thrust, so that the lower punch 223 moves upward along its sliding path. At this time, the upper punch 214 moves downward under the action of the corresponding upper pressing wheel 215, and the upper punch 214 and the lower punch 223 cooperate with each other to press the powder in the corresponding module 4 on the middle die plate 3.

[0051] After the pressing is completed, as the lower rotating table 222 continues to rotate, the lower punch 223 breaks away from the contact with the lower pressing wheel 225, falls back downward under the action of its own gravity, and returns to the initial position.

[0052] Reference Figure 2 The driving member 23 is a driving motor 231 , a fixed end of the driving motor 231 is fixedly mounted on the bottom of the inner wall of the box body 1 , and an output end of the driving motor 231 is coaxially fixedly connected to the rotating shaft 212 .

[0053] After the tablet press is ready, the power is turned on and the driving motor 231 starts to run. The rotational force of the motor is directly transmitted to the rotating shaft 212, and the rotation of the rotating shaft 212 drives the upper rotating table 213, the middle die plate 3 and the lower rotating table 222 to rotate synchronously, so that the upper punch 214 and the lower punch 223 perform a punching action according to a predetermined motion trajectory and rhythm, and cooperate to complete the pressing process of the medicine powder.

[0054] Reference Figure 3 The unloading member 6 includes an unloading protrusion 61, an unloading groove 62 and a baffle 63. The unloading protrusion 61 is fixedly mounted on the support plate 221, and the unloading protrusion 61 is located on the side of the upper pressing wheel 215 and the lower pressing wheel 225 away from the loading member 5. The unloading groove 62 is fixedly mounted on the box body 1, and one end of the unloading groove 62 abuts against the middle mold plate 3. The baffle 63 is fixedly mounted on the unloading groove 62 and abuts against the middle mold plate 3. The baffle 63 is used to block the compressed tablets.

[0055] When the tablet press is started and begins the tablet pressing operation, as the middle die plate 3 continues to rotate, each module 4 goes through the tablet pressing process in turn to press the powder into tablets. After the tablet pressing is completed, the lower punch 223 immediately rotates to the unloading protrusion 61. Under the action of the unloading protrusion 61, the lower punch 223 moves up, and the head of the lower punch 223 is flush with the upper surface of the middle die plate 3, and the pressed tablet is ejected from the tablet pressing hole 42. As the middle die plate 3 rotates to the baffle 63, the pressed tablet is separated from the middle die plate 3 under the action of the baffle 63, and is pushed into the unloading trough 62, and slides downward along the unloading trough 62, completing the unloading process from the tablet press to the collection container.

[0056] Reference Figure 3 , Figure 4 and Figure 5 The fastening assembly 7 includes a fixed ring 71, a rotating ring 72, a connecting rod 73, a clamping rod 74, a gear 75 and a rack 76. The fixed ring 71 is annular and fixedly installed in the fastening cavity 31. The rotating rings 72 correspond to the number of modules 4. The rotating rings 72 are evenly spaced and sleeved on the fixed ring 71. The rotating rings 72 are rotatably connected to the fixed ring 71. Two connecting rods 73 are hinged on one rotating ring 72, and one end of the connecting rod 73 is hinged on the rotating ring 72.

[0057] Reference Figure 3 , Figure 4 and Figure 7The number of clamping rods 74 and modules 4 corresponds one to one. The two ends of the clamping rod 74 are respectively hinged to two adjacent connecting rods 73 on two adjacent rotating rings 72. The clamping rod 74 is adapted to the clamping groove 41. The gear 75 is rotatably installed on the fixed ring 71. The gear 75 is fixedly connected to the two adjacent rotating rings 72 through a connecting rod. The rack 76 is slidably installed on the middle mold plate 3. One end of the rack 76 passes through the middle mold plate 3, and the rack 76 is meshed with the gear 75.

[0058] After installing the module 4 to the mounting hole of the middle mold plate 3, in order to ensure that the module 4 remains stable during high-speed rotation and tableting, it is necessary to activate the fastening component 7 to push the rack 76 to slide on the middle mold plate 3. The sliding of the rack 76 drives the gear 75 meshing with it to rotate, and the rotation of the gear 75 drives the rotating ring 72 connected to it to start rotating around the fixed ring 71. When the rotating ring 72 rotates, through the linkage action of the connecting rod 73, the clamping rod 74 gradually approaches the module 4 and is clamped into the clamping groove 41 of the module 4. The clamping rod 74 applies pressure from the side of the module 4, and relies on the friction force with the module 4 and its own clamping force to overcome the influence of external forces such as centrifugal force and vibration force generated during the rotation and tableting of the middle mold plate 3, and firmly fix the module 4 in the mounting hole of the middle mold plate 3 to prevent the module 4 from loosening, shifting or falling out, thereby ensuring the accuracy and stability of the tableting process and ensuring that the produced tablets are of qualified quality and consistent specifications.

[0059] When the module 4 needs to be replaced, the rack 76 is operated in reverse to reverse the gear 75, driving the rotating ring 72 to rotate in the opposite direction, and the clamping rod 74 releases the clamping of the module 4, so that the clamping of the module 4 can be quickly released, and the module 4 can be taken out for replacement or maintenance, thereby realizing the rapid clamping and removal of the module 4 on the middle mold plate 3, and improving the mold changing efficiency.

[0060] Reference Figure 5 and Figure 6 The jacking assembly 8 is located at the side of the blanking part 6 away from the lower pressing wheel 225, and the jacking assembly 8 includes a jacking box 81, a slider 82, a jacking block 83, a transition plate 84, a slide bar 85, a pulley 86, a spring 87 and a driving rod 88. The jacking box 81 is fixedly mounted on the support plate 221, and the slider 82 is slidably mounted at the bottom of the jacking box 81. The cross section of the slider 82 is sloped, with the side close to the support plate 221 being low and the side away from the support plate 221 being high.

[0061] Reference Figure 5 and Figure 6 The lifting block 83 is arranged above the lifting box 81, and transition plates 84 are hinged on both sides of the lifting block 83 to enable the lower punch 223 to climb smoothly. The sliding rod 85 is vertically arranged, and the sliding rod 85 passes through the lifting box 81. One end of the sliding rod 85 is fixedly connected to the lifting block 83, and the pulley 86 is rotatably installed on the end of the sliding rod 85 away from the lifting box 81, and the pulley 86 is slidably arranged on the upper surface of the slider 82.

[0062] Reference Figure 5 and Figure 6 The spring 87 is arranged in the lifting box 81, and the spring 87 is sleeved on the slide rod 85. The two ends of the spring 87 are fixedly connected to the lifting box 81 and the lifting block 83 respectively. One end of the driving rod 88 is fixedly installed on the slide block 82, and the other end of the driving rod 88 passes through the lifting box 81.

[0063] When it is necessary to replace the module 4 and eject the module 4 from the middle mold plate 3, the driving fastening assembly 7 releases the lock on the module 4, pushes the driving rod 88, and drives the slider 82 to move. Due to the cross-sectional shape characteristics of the slider 82, as the pulley 86 slides on the upper surface of the slider 82 from the low side to the high side, the lifting block 83 will be continuously and steadily lifted upward. At this time, the spring 87 is compressed, and while the lifting block 83 rises, the transition plates 84 hinged on both sides thereof will change angles as the lifting block 83 moves upward, forming a slope, thereby assisting the lower punch 223 to climb smoothly upward along the transition plate 84.

[0064] When the lower punch 223 climbs to the highest position, the lower punch 223 pushes the module 4 upward from the middle die plate 3, so that the module 4 can be easily removed from the middle die plate 3 by tools or manually to replace the new module 4. As all the lower punches 223 pass through the lifting block 83, all the modules 4 are pushed out from the middle die plate 3, realizing the rapid disassembly of the module 4. After the lifting is completed, the driving rod 88 is controlled to move in the reverse direction. Under the action of the spring 87, the pulley 86 and the slide rod 85 move downward synchronously, driving the lifting block 83 to move downward and return to the initial position, completing the die replacement lifting operation.

[0065] Reference Figure 1 Three inspection doors 9 are installed on the box body 1, and the inspection doors 9 are made of transparent materials.

[0066] During the daily operation of the tablet press, the operator can check the operating conditions of the components in the box 1 through the transparent inspection door 9. There is no need to open the inspection door 9. The operating status of the tablet press can be observed only through the transparent material. When a fault alarm occurs in the tablet press or the operator notices that the equipment is operating abnormally, the inspection door 9 is opened for detailed inspection to improve the efficiency of troubleshooting.

[0067] The implementation principle of a pharmaceutical high-speed tablet press in the embodiment of the present application is as follows: the driving motor 231 drives the rotating shaft 212 to rotate, and the rotating shaft 212 drives the middle mold plate 3, the upper rotating table 213, and the lower rotating table 222 to rotate synchronously, and each module 4 circulates through different working areas in turn. The feeding part 5 is responsible for feeding, and with the help of the scraper 53, the powder is evenly scraped into the module 4 of the middle mold plate 3. The tablet pressing mechanism 2 performs tablet pressing, and the powder in the module 4 is pressed by the upper punch 21 and the lower punch 22 to complete the process of compacting the powder into tablets. After the pressing is completed, the feeding trough 62 of the feeding part 6 receives the tablets coming out of the module 4 so that they can slide into the collection container in an orderly manner.

[0068] The fastening assembly 7 can quickly complete the locking of the module 4 to ensure the stability of the module 4, and can also quickly unlock the module 4 to facilitate the replacement of the module 4. After the module 4 is unlocked, the module 4 is quickly ejected from the middle mold plate 3 by the lifting assembly 8, so that the module 4 can be replaced efficiently.

[0069] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-speed tablet press for pharmaceutical use, characterized in that: include: A box body (1), wherein the box body (1) is provided with a loading port; a tablet pressing mechanism (2), the tablet pressing mechanism (2) being installed in the box body (1), the tablet pressing mechanism (2) comprising an upper punch (21), a lower punch (22) and a driving member (23), the upper punch (21) being installed in the box body (1), the lower punch (22) being located below the upper punch (21), the driving member (23) being installed on the box body (1), and the tablet pressing mechanism (2) being used to press the medicine powder into a tablet shape; A middle die plate (3), the middle die plate (3) being mounted on the driving member (23), the middle die plate (3) being provided with a plurality of mounting holes spaced circumferentially around the axis of the middle die plate (3), and an annular fastening cavity (31) being provided in the middle die plate (3); A module (4), wherein the module (4) is slidably mounted in the mounting hole, the number of the modules (4) corresponds to the number of the mounting holes, the module (4) and the middle die plate (3) are in interference connection, the module (4) is provided with a clamping groove (41), the module (4) is provided with a tablet pressing hole (42), and the module (4) is used to make the pressed tablet have a specific shape; A loading piece (5), the loading piece (5) being mounted on the tablet pressing mechanism (2), the loading piece (5) being used to add medicine powder into the tablet pressing mechanism (2); A material discharge piece (6), the material discharge piece (6) being mounted on the tablet pressing mechanism (2), the material discharge piece (6) being used to transport the pressed tablets out of the box (1); A fastening assembly (7), the fastening assembly (7) being installed in the fastening cavity (31), the fastening assembly (7) being used to clamp the module (4) onto the middle mold plate (3); A lifting component (8), wherein the lifting component (8) is installed on the lower punch (22), and the lifting component (8) is located on one side of the blanking component (6). The lifting component (8) is used to eject the module (4) from the middle mold plate (3) after blanking is completed.

2. The pharmaceutical high-speed tablet press according to claim 1, characterized in that: The upper punch (21) comprises: A track plate (211), the track plate (211) being fixedly mounted on the top of the inner wall of the box body (1), and a rotating track (2111) being provided on the track plate (211); a rotating shaft (212), one end of the rotating shaft (212) being coaxially and rotatably mounted on the track plate (211), the rotating shaft (212) passing through the middle mold plate (3) and being coaxially and fixedly connected to the middle mold plate (3); An upper rotating platform (213), the upper rotating platform (213) being coaxially fixedly mounted on the rotating shaft (212), the upper rotating platform (213) being located between the track plate (211) and the middle mold plate (3); an upper punch (214), the upper punches (214) corresponding in number to the modules (4), the upper punches (214) being located directly above the modules (4), the upper punches (214) penetrating the upper rotating platform (213), and the upper punches (214) being slidably mounted within the rotating track (2111); an upper pressing wheel (215), the upper pressing wheel (215) being rotatably mounted on the track plate (211), the upper pressing wheel (215) being used to press downward the upper punch (214) that moves to the upper pressing wheel (215); An upper pressure motor (216), wherein a fixed end of the upper pressure motor (216) is fixedly mounted in the track plate (211), and an output end of the upper pressure motor (216) is coaxially fixedly connected to the upper pressure wheel (215).

3. The pharmaceutical high-speed tablet press according to claim 2, characterized in that: The lower punch (22) comprises: A support plate (221), the support plate (221) being fixedly mounted on the box body (1), and one end of the rotating shaft (212) away from the track plate (211) being rotatably mounted on the support plate (221), and the support plate (221) being located below the middle mold plate (3); a lower rotating table (222), the lower rotating table (222) being coaxially fixedly mounted on the rotating shaft (212), the lower rotating table (222) being located between the middle mold plate (3) and the supporting plate (221); a lower punch (223), wherein the number of the lower punches (223) corresponds to the number of the upper punches (214), the lower punches (223) are located directly below the upper punches (214), one end of the lower punches (223) abuts against the support plate (221), the lower punches (223) penetrate the lower rotating table (222), and the lower punches (223) are slidably mounted on the lower rotating table (222); A downward pressing motor (224), wherein a fixed end of the downward pressing motor (224) is fixedly mounted on the supporting plate (221); A lower pressing wheel (225), the lower pressing wheel (225) is coaxially fixedly connected to the output end of the lower pressing motor (224), the lower pressing wheel (225) is located directly below the upper pressing wheel (215), and the lower pressing wheel (225) is used to move the lower punch (223) moved to the lower pressing wheel (225) upward.

4. The pharmaceutical high-speed tablet press according to claim 3, characterized in that: The driving member (23) is a driving motor (231), the fixed end of the driving motor (231) is fixedly mounted on the bottom of the inner wall of the box body (1), and the output end of the driving motor (231) is coaxially fixedly connected to the rotating shaft (212).

5. The pharmaceutical high-speed tablet press according to claim 3, characterized in that: The fastening assembly (7) comprises: a fixing ring (71), the fixing ring (71) being fixedly mounted in the fastening cavity (31); Rotating rings (72), the number of the rotating rings (72) corresponding to the number of the modules (4), the rotating rings (72) being sleeved on the fixed ring (71) at intervals, the rotating ring (72) being rotatably connected to the fixed ring (71), and two connecting rods (73) being symmetrically and hingedly provided on the rotating ring (72); A clamping rod (74), wherein the number of the clamping rods (74) corresponds to the number of the modules (4), the two ends of the clamping rod (74) are respectively hinged to two adjacent connecting rods (73) on two adjacent rotating rings (72), and the clamping rod (74) is adapted to the clamping groove (41); a gear (75), the gear (75) being rotatably mounted on the fixed ring (71), the gear (75) being fixedly connected to two adjacent rotating rings (72) via a connecting rod; A rack (76), the rack (76) being slidably mounted on the middle mold plate (3), the rack (76) being meshed with the gear (75), and one end of the rack (76) passing through the middle mold plate (3).

6. The pharmaceutical high-speed tablet press according to claim 5, characterized in that: The lifting assembly (8) comprises: A lifting box (81), the lifting box (81) being fixedly mounted on the supporting plate (221); A slider (82), the slider (82) being slidably mounted in the jacking box (81), and the upper surface of the slider (82) being inclined; A lifting block (83), wherein the lifting block (83) is arranged above the lifting box (81); A transition plate (84), wherein there are two transition plates (84), and the two transition plates (84) are respectively hinged on two sides of the lifting block (83); a sliding rod (85), wherein the sliding rod (85) passes through the lifting box (81), and one end of the sliding rod (85) is fixedly connected to the lifting block (83); a pulley (86), the pulley (86) being rotatably mounted on an end of the slide bar (85) away from the jacking box (81), the pulley (86) being slidably disposed on an upper surface of the slide block (82); a spring (87), wherein the spring (87) is disposed in the jacking box (81), and two ends of the spring (87) are respectively fixedly connected to the jacking box (81) and the jacking block (83), and in an initial state, the spring (87) is in a stretched state; A driving rod (88), one end of which is fixedly mounted on the sliding block (82), and the other end of which passes through the lifting box (81).

7. The pharmaceutical high-speed tablet press according to claim 3, characterized in that: The loading piece (5) is located on one side of the upper pressing wheel (215) and the lower pressing wheel (225), and the loading piece (5) comprises: A hopper (51), wherein the hopper (51) is arranged on the feeding port; A feeding plate (52), the feeding plate (52) being fixedly mounted on the hopper (51), the feeding plate (52) being in communication with the hopper (51), a feeding hole being provided at the bottom of the feeding plate (52), the feeding hole being located above the tabletting hole (42); A scraper (53), wherein the scraper (53) is fixedly mounted on the feeding plate (52), and the scraper (53) abuts against the middle mold plate (3).

8. The pharmaceutical high-speed tablet press according to claim 7, characterized in that: The lower material piece (6) is located on a side of the upper pressing wheel (215) and the lower pressing wheel (225) away from the upper material piece (5), and the lower material piece (6) comprises: a material discharge protrusion (61), wherein the material discharge protrusion (61) is fixedly mounted on the support plate (221); A material discharge chute (62), the material discharge chute (62) being fixedly mounted on the box body (1), one end of the material discharge chute (62) being in contact with the middle mold plate (3); A blocking piece (63), the blocking piece (63) is fixedly mounted on the feed chute (62), the blocking piece (63) abuts against the middle die plate (3), and the blocking piece (63) is used to block the compressed tablets.

9. The pharmaceutical high-speed tablet press according to claim 1, characterized in that: A plurality of inspection doors (9) are installed on the box body (1).

10. The pharmaceutical high-speed tablet press according to claim 9, characterized in that: The inspection door (9) is made of transparent material.

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