A high-speed tablet press for pharmaceutical use

Abstract

The present application relates to a high-speed tablet press for pharmaceutical use, belonging to the technical field of pharmaceutical equipment. It includes a box body, a tablet pressing mechanism, a middle die plate, a module, a feeding member, a discharging member, a fastening assembly and a jacking assembly. The tablet pressing mechanism is installed inside the box body and is used for pressing the medicinal powder into tablets; the middle die plate is installed on a driving member, and the module is slidably installed inside the middle die plate and is used for making the pressed tablets have a specific shape; the feeding member is installed on the tablet pressing mechanism and is used for adding medicinal powder into the tablet pressing mechanism; the discharging member is installed on the tablet pressing mechanism and is used for conveying the pressed tablets out of the box body; an annular fastening cavity is formed inside the middle die plate, and the fastening assembly is installed inside the fastening cavity and is used for clamping the module on the middle die plate; the jacking assembly is installed on the lower punch member and is used for ejecting the module from the middle die plate. The present application 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 presses are indispensable key equipment in the pharmaceutical industry and are 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 high production capacity but also need to be able to flexibly adapt to the production of tablets of different shapes to meet diverse product requirements.

[0003] Existing tablet presses achieve the production of tablets of different shapes by replacing the punches and middle modules. The replacement of punches is relatively easy, while the connection between the middle punch die and the middle die plate mostly adopts interference fit and is fixed by locking screws. When replacing the middle punch die, the operator needs to unscrew the screws of each die one by one and use a small jack to replace the middle punch die one by one.

[0004] In view of the above related technologies, due to the interference fit between the middle punch die and the middle punch plate and the installation method fixed by locking screws, the process of replacing the middle punch die takes a long time, affecting the die replacement efficiency. Summary of the Invention

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

[0006] A high-speed tablet press for pharmaceutical use provided by the present application adopts the following technical solutions:

[0007] A high-speed tablet press for pharmaceutical use includes:

[0008] A box body, on which a feeding port is opened;

[0009] A tablet pressing mechanism, which is installed in the box body. The tablet pressing mechanism includes an upper punch part, a lower punch part and a driving part. The upper punch part is installed in the box body, the lower punch part is located below the upper punch part, and the driving part is installed on the box body. The tablet pressing mechanism is used to press the pharmaceutical powder into tablets;

[0010] A middle die plate, which is installed on the driving part. A plurality of mounting holes are circumferentially and spaced apart around the axis of the middle die plate on the middle die plate, and an annular fastening cavity is opened in the middle die plate;

[0011] Modules, which are slidably installed in the mounting holes. The number of modules corresponds to the number of mounting holes one by one. The modules are in interference connection with the middle die plate. A clamping groove is opened on the module, and a tablet pressing hole is opened on the module. The modules are used to make the pressed tablets have a specific shape;

[0012] Feeding part, which is installed on the tablet pressing mechanism and is used to add powder into the tablet pressing mechanism;

[0013] Discharging part, which is installed on the tablet pressing mechanism and is used to convey the pressed tablets out of the box;

[0014] Fastening assembly, which is installed in the fastening cavity and is used to clamp the module on the middle die plate;

[0015] Lifting assembly, which is installed on the lower punch and is located on one side of the discharging part. After discharging, the lifting assembly is used to eject the module from the middle die plate.

[0016] By adopting the above technical solution, powder is added into the tablet pressing mechanism through the feeding part. The tablet pressing mechanism includes an upper punch, a lower punch and a driving part, which can realize the pressing of powder. The pressed tablets are automatically discharged through the discharging part, reducing manual intervention and improving production efficiency;

[0017] When different-shaped drugs need to be pressed, the fastening effect on the module can be relatively quickly released by driving the fastening assembly, and then the module can be quickly ejected from the middle die plate by using the lifting assembly, realizing the quick disassembly of the module. Thus, different-shaped modules can be quickly replaced, avoiding the cumbersome process of screwing out screws one by one in the traditional method, shortening the replacement time and improving the die-changing efficiency.

[0018] Optionally, the upper punch includes:

[0019] Track disk, which is fixedly installed on the inner wall top of the box, and a rotating track is arranged on the track disk;

[0020] Rotating shaft, one end of which is coaxially and rotatably installed on the track disk. The rotating shaft penetrates the middle die plate and is coaxially and fixedly connected with the middle die plate;

[0021] Upper rotating table, which is coaxially and fixedly installed on the rotating shaft and is located between the track disk and the middle die plate;

[0022] Upper punch head, which corresponds to the number of modules one by one. The upper punch head is located directly above the module, penetrates the upper rotating table, and the upper punch head is slidably installed in the rotating track;

[0023] Upper pressure wheel, which is rotatably installed on the track disk and is used to press down the upper punch head moving to the upper pressure wheel;

[0024] The upper pressing motor, the fixed end of the upper pressing motor is fixedly installed in the track disk, and the output end of the upper pressing motor is coaxially and fixedly connected to the upper pressing wheel.

[0025] By adopting the above technical solution, the rotating track on the track disk enables the upper punch to move stably on a 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 within the rotating track. When the upper punch rotates to the tablet pressing station, the upper pressing wheel cooperates with the upper pressing motor to achieve the automatic downward pressing of the upper punch, pressing the upper punch into the module, improving the pressing efficiency and accuracy, and the upper punching part can precisely control the up and down movement of the upper punch.

[0026] Optionally, the lower punching part includes:

[0027] A support disk, the support disk is fixedly installed on the box body, one end of the rotating shaft away from the track disk is rotatably installed on the support disk, and the support disk is located below the middle die disk;

[0028] A lower rotating table, the lower rotating table is coaxially and fixedly installed on the rotating shaft, and the lower rotating table is located between the middle die disk and the support disk;

[0029] Lower punches, the number of lower punches corresponds one-to-one with the number of upper punches, the lower punches are located directly below the upper punches, one end of the lower punches abuts against the support disk, the lower punches penetrate through the lower rotating table, and the lower punches are slidably installed on the lower rotating table;

[0030] A lower pressing motor, the fixed end of the lower pressing motor is fixedly installed on the support disk;

[0031] A lower pressing wheel, the lower pressing wheel is coaxially fixedly connected to the output end of the lower pressing motor, the lower pressing wheel is located directly below the upper pressing wheel, and the lower pressing wheel is used to move the lower punch moving to the position of the lower pressing wheel upward.

[0032] By adopting the above technical solution, during the process of pressing tablets, the rotating shaft drives the lower rotating table to rotate, and rotates synchronously with the upper rotating table. The lower punches move precisely driven by the lower rotating table. At the same time, the cooperation of the lower pressing motor and the lower pressing wheel realizes the automatic up and down movement of the lower punches, enables the lower punches to act synchronously with the upper punches, and the lower punches and the upper punches precisely cooperate to press into the module at the same time, pressing the powder into tablets, realizing the efficient pressing of tablets.

[0033] Optionally, the driving part is a driving motor, the fixed end of the driving motor is fixedly installed at the bottom of the inner wall of the box body, and the output end of the driving motor is coaxially fixedly connected to the rotating shaft.

[0034] By adopting the above technical solution, the driving motor serves as a driving member to drive the rotating shaft to rotate. The rotating shaft drives the upper rotating table, the middle die plate, and the lower rotating table to rotate synchronously, enabling the upper punch and the lower punch to be precisely matched. The tablet pressing efficiency can be adjusted by controlling the speed of the driving motor, achieving high-efficiency tablet pressing.

[0035] Optionally, the fastening assembly includes:

[0036] A fixing ring, which is fixedly installed in the fastening cavity;

[0037] A rotating ring, which corresponds to the number of modules one by one. The rotating rings are sleeved on the fixing ring at intervals. The rotating rings are rotatably connected to the fixing ring, and two connecting rods are symmetrically and hingedly arranged on the rotating rings;

[0038] A clamping rod, which corresponds to the number of modules one by one. The two ends of the clamping rod are respectively hinged to two adjacent connecting rods on two adjacent rotating rings. The clamping rod is adapted to the clamping groove;

[0039] A gear, which is rotatably installed on the fixing ring. The gear is fixedly connected to two adjacent rotating rings through a connecting rod;

[0040] A rack, which is slidably installed on the middle die plate. The rack meshes with the gear, and one end of the rack penetrates through the middle die plate.

[0041] By adopting the above technical solution, when it is necessary to replace the module, only need to push the rack to drive the gear to rotate, so that each rotating ring rotates synchronously, and then drive the clamping rod to be released from the clamping groove through the connecting rod, thereby releasing the locking of all modules in the middle die plate. The whole process is simple and fast, greatly saving the replacement time and reducing the labor intensity;

[0042] When the replacement is completed and it is necessary to lock the module, push the rack in the reverse direction to achieve the quick locking of all modules. This fastening assembly realizes the quick clamping and removal of the module on the middle die plate, avoids the cumbersome operation of fixing each screw traditionally, and improves the die-changing efficiency of the tablet press.

[0043] Optionally, the jacking assembly includes:

[0044] A jacking box, which is fixedly installed on the support plate;

[0045] A slider, which is slidably installed in the jacking box. The upper surface of the slider is inclined;

[0046] A jacking block, which is arranged above the jacking box;

[0047] Transition plates, there are two transition plates, and the two transition plates are respectively hinged on both sides of the jacking block;

[0048] A sliding rod, the sliding rod passes through the jacking box, and one end of the sliding rod is fixedly connected to the jacking block;

[0049] A pulley, the pulley is rotatably installed at one end of the sliding rod away from the jacking box, and the pulley is slidably arranged on the upper surface of the slider;

[0050] A spring, the spring is arranged in the jacking box, and both ends of the spring are fixedly connected to the jacking box and the jacking block respectively. In the initial state, the spring is in a stretched state;

[0051] A driving rod, one end of the driving rod is fixedly installed on the slider, and the other end of the driving rod passes through the jacking box.

[0052] By adopting the above technical solutions, when replacing the module, after the driving fastening component releases the fastening effect on the module, push the driving rod to move the slider, thereby driving the pulley to rotate on the surface of the pulley, and at the same time driving the sliding rod to slide upward, the spring is compressed, so that the jacking block jacks up. After moving up, only need to drive the rotating shaft to rotate one week to complete the jacking of all modules. The transition plates hinged on both sides of the jacking block can make the lower punch smoothly climb onto the jacking block. The jacking component significantly improves the speed and convenience of module replacement, reduces the time and labor intensity of manual operation, and realizes quickly and conveniently jacking the module out of the middle mold plate.

[0053] Optionally, the feeding member is located on one side of the upper pressing wheel and the lower pressing wheel, and the feeding member includes:

[0054] A hopper, the hopper is arranged at the feeding port;

[0055] A feeding tray, the feeding tray is fixedly installed on the hopper, the feeding tray is communicated with the hopper, and a feeding hole is opened at the bottom of the feeding tray, and the feeding hole is located above the tablet pressing hole;

[0056] A scraper, the scraper is fixedly installed on the feeding tray, and the scraper abuts against the middle mold plate.

[0057] By adopting the above technical solutions, when feeding the tablet press, the medicinal powder enters the feeding tray through the hopper. As the middle mold plate rotates, the medicinal powder in the feeding tray is evenly fed into the tablet pressing holes on the module, ensuring that each module can obtain sufficient medicinal powder. And the scraper scrapes the excess medicinal powder back into the feeding tray, effectively preventing the phenomenon of accumulation or uneven distribution of the medicinal powder during the feeding process, ensuring the consistency of the thickness and density of the tablets, and improving the tablet pressing quality.

[0058] Optionally, the blanking member is located on the side of the upper pressing wheel and the lower pressing wheel away from the feeding member, and the blanking member includes:

[0059] A blanking protrusion fixedly installed on the support disk;

[0060] A blanking groove fixedly installed on the box body, and one end of the blanking groove abuts against the middle die plate;

[0061] A retaining piece fixedly installed on the blanking groove, the retaining piece abuts against the middle die plate, and the retaining piece is used to block the tablets after pressing.

[0062] By adopting the above technical solution, after tablet pressing is completed, the tablets are ejected from the tablet pressing holes by the blanking protrusions, and the retaining piece prevents the ejected tablets from continuing to rotate with the middle die plate. Under the action of the retaining piece, the tablets move towards the blanking groove and are discharged from the inside of the tablet press through the blanking groove. The blanking groove prevents the tablets from splashing or falling during the discharging process, ensuring the integrity of the tablets and the cleanliness of the production environment.

[0063] Optionally, a plurality of inspection doors are installed on the box body.

[0064] By adopting the above technical solution, installing a plurality of inspection doors can facilitate operators to quickly access the inside of the tablet press for inspection and maintenance, improving the maintainability of the equipment and the troubleshooting efficiency.

[0065] Optionally, the inspection door is made of a transparent material.

[0066] By adopting the above technical solution, operators can directly observe the working state inside the tablet press, promptly discover abnormal situations and handle them, improving the safety and reliability of the equipment operation. At the same time, the use of transparent materials also facilitates daily maintenance and inspection, reducing the inconvenience caused by frequently opening the inspection doors.

[0067] In summary, the present application includes at least one of the following beneficial technical effects:

[0068] 1. By setting the fastening component and the jacking component, rapid loading and unloading of the module are achieved, significantly shortening the replacement time of the middle punch die and improving the die change efficiency;

[0069] 2. The interference fit between the module and the middle die plate combined with the clamping effect of the fastening component ensures the stability and reliability of the module during tablet pressing, avoiding the problem of unstable tablet quality caused by loosening;

[0070] 3. The reasonable design of the feeding member and the blanking member ensures the uniform supply of the medicinal powder and the smooth conveying of the tablets, further improving the overall operation efficiency and product quality of the tablet press. Description of the Drawings

[0071] Figure 1 is a schematic structural view of a high-speed tablet press according to an embodiment of the present application;

[0072] Figure 2 is a sectional view of a high-speed tablet press according to an embodiment of the present application;

[0073] Figure 3 is a schematic structural view for showing a tablet pressing mechanism according to an embodiment of the present application;

[0074] Figure 4 is a sectional view for showing a fastening assembly according to an embodiment of the present application;

[0075] Figure 5 is a sectional view for showing a jacking assembly according to an embodiment of the present application;

[0076] Figure 6 is an embodiment of the present application Figure 5 partial enlarged view at A;

[0077] Figure 7 is a sectional view for showing a module according to an embodiment of the present application.

[0078] Explanation of reference numerals:

[0079] 1, box body; 2, tablet pressing mechanism; 21, upper punch part; 211, track disk; 2111, rotating track; 212, rotating shaft; 213, upper rotating table; 214, upper punch head; 215, upper pressing wheel; 216, upper pressing motor; 22, lower punch part; 221, support disk; 222, lower rotating table; 223, lower punch head; 224, lower pressing motor; 225, lower pressing wheel; 23, driving part; 231, driving motor; 3, middle die disk; 31, fastening cavity; 4, module; 41, clamping groove; 42, tablet pressing hole; 5, feeding part; 51, hopper; 52, feeding tray; 53, scraper; 6, discharging part; 61, discharging protrusion; 62, discharging groove; 63, baffle; 7, fastening assembly; 71, fixed ring; 72, rotating ring; 73, connecting rod; 74, clamping rod; 75, gear; 76, rack; 8, jacking assembly; 81, jacking box; 82, slider; 83, jacking block; 84, transition plate; 85, sliding rod; 86, pulley; 87, spring; 88, driving rod; 9, maintenance door. Detailed implementation manners

[0080] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0081] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These 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. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0082] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0083] The following is a further detailed description of the present application in conjunction with the Figure 1-7 accompanying drawings.

[0084] An embodiment of the present application discloses a high-speed tablet press for pharmaceutical use.

[0085] Referring to Figure 1 and Figure 2 and Figure 3 , the high-speed tablet press for pharmaceutical use includes a box body 1, a tablet pressing mechanism 2, an intermediate die plate 3, a module 4, a feeding member 5, a discharging member 6, a fastening assembly 7, and a jacking assembly 8. The tablet pressing mechanism 2 is installed inside the box body 1. The tablet pressing mechanism 2 includes an upper punch member 21, a lower punch member 22, and a driving member 23. The tablet pressing mechanism 2 is used to press the medicinal powder into tablets. The intermediate die plate 3 is installed on the driving member 23. Eight mounting holes are circumferentially spaced apart around the axis of the intermediate die plate 3 on the intermediate die plate 3.

[0086] Referring to Figure 1 and Figure 2, the module 4 is slidably installed in the installation hole. The number of modules 4 corresponds to the number of installation holes one by one. The module 4 is in interference connection with the middle die plate 3. The module 4 is used to make the pressed tablets have a specific shape. The feeding part 5 is installed on the tablet pressing mechanism 2. The feeding part 5 is used to add powder into the tablet pressing mechanism 2. The discharging part 6 is installed on the tablet pressing mechanism 2. The discharging part 6 is used to convey the pressed tablets out of the box body 1.

[0087] Refer to Figure 3 and Figure 5 , an annular fastening cavity 31 is formed in the middle die plate 3. 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 die plate 3. The jacking assembly 8 is installed on the lower punch 22. The jacking assembly 8 is located on one side of the discharging part 6. The jacking assembly 8 is used to jack out the module 4 from the middle die plate 3.

[0088] When starting to press tablets, the driving part 23 is started, and the middle die plate 3 starts to rotate uniformly around its axis in the box body 1. During the rotation process, when the module 4 rotates to the feeding position, the powder is put into the tablet pressing hole 42 of the module 4. The powder is filled into the module 4 under the action of gravity and the pushing of the feeding part 5, making preparations for subsequent tablet pressing.

[0089] With the continuous rotation of the middle die plate 3, the module 4 filled with powder reaches the tablet pressing area. At this time, the upper punch 21 presses downward. The upper punch 21 and the lower punch 22 apply pressure to the powder in the module 4. The powder is compacted and formed within the specific shape space defined by the module 4, forming tablets with a predetermined shape and size. After the tablet pressing is completed, the middle die plate 3 continues to rotate, and the module 4 with the pressed tablets rotates to the discharging position and falls into the container for collecting tablets under the action of the discharging part 6.

[0090] When it is necessary to replace the module 4 to produce tablets of different shapes or specifications, the jacking assembly 8 is driven. The jacking assembly 8 generates an upward jacking force under the linkage cooperation with the lower punch 22. Since the module 4 is in interference connection with the middle die plate 3, the force of the jacking assembly 8 overcomes the connection resistance and gradually jacks out the module 4 from the installation hole of the middle die plate 3. The operator can use a special tool to assist in taking out the module 4 and carefully install the new module 4 into the installation hole, completing the high-efficiency disassembly and assembly of the module 4.

[0091] Refer to Figure 3, The feeding member 5 is located on one side of the upper pressing wheel 215 and the lower pressing wheel 225. The feeding member 5 includes a hopper 51, a feeding tray 52, and a scraper 53. An upper feeding port is provided on the box body 1. The hopper 51 is arranged on the upper feeding port. The feeding tray 52 is fixedly installed on the hopper 51 and is communicated with the hopper 51. The bottom of the feeding tray 52 abuts against the middle die plate 3, and a feeding hole is provided at the bottom of the feeding tray 52, so that when the middle die plate 3 rotates, the powder can leak into the tablet pressing hole 42. The scraper 53 is fixedly installed on the feeding tray 52 and abuts against the middle die plate 3.

[0092] During tablet pressing, the powder to be pressed is poured into the hopper 51. The hopper 51 serves as a storage container for the powder and provides a material source for subsequent feeding operations. The driving member 23 is started, and the middle die plate 3 rotates. Since the feeding tray 52 is communicated with the hopper 51, the powder gradually flows into the feeding tray 52 under the action of gravity. When the middle die plate 3 rotates to the feeding position, the powder in the feeding tray 52 enters the tablet pressing hole 42 on the module 4. The scraper 53 leaves the excess powder in the feeding tray 52, thereby leveling and quantitatively controlling the powder, so that each mounting hole of the module 4 can be filled with approximately the same amount of powder to ensure the uniform and stable quality of the pressed tablets, thus realizing continuous and efficient feeding operations and meeting the material supply requirements for high-speed tablet pressing.

[0093] Refer to Figure 2 and Figure 3 , The upper punch member 21 includes an orbital plate 211, a rotating shaft 212, an upper rotating table 213, an upper punch 214, an upper pressing wheel 215, and an upper pressing motor 216. The orbital plate 211 is fixedly installed on the top inner wall of the box body 1. A rotating track 2111 is provided on the orbital plate 211, and the rotating track 2111 is arranged on the side wall of the orbital plate 211. The rotating shaft 212 is vertically arranged, and one end of the rotating shaft 212 is coaxially and rotatably installed on the orbital plate 211. The rotating shaft 212 passes through the middle die plate 3 and is coaxially and fixedly connected to the middle die plate 3.

[0094] Refer to Figure 2 and Figure 3 , The upper rotating table 213 is coaxially and fixedly installed on the rotating shaft 212. The upper rotating table 213 is located between the orbital plate 211 and the middle die plate 3. The number and positions of the upper punches 214 and the modules 4 correspond one by one. The upper punches 214 are vertically arranged. The end of the upper punch 214 located on the orbital plate 211 is 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.

[0095] Refer to 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 moving to the position of the upper pressing wheel 215 down into the tablet pressing hole 42. The fixed end of the upper pressing motor 216 is fixedly mounted in the track plate 211, and the output end of the upper pressing motor 216 is fixedly connected to the upper pressing wheel 215 coaxially.

[0096] After 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 perform a circular motion, and at the same time, it moves vertically under the action of the rotating track 2111. When a certain upper punch 214 rotates with the upper rotating table 213 to the contact position with the upper pressing wheel 215, the upper pressing motor 216 drives the upper pressing wheel 215 to rotate. Due to the contact between the upper punch 214 and the upper pressing wheel 215 and the specific positional relationship within the rotating track 2111, the rotation of the upper pressing wheel 215 exerts a downward pressure on the upper punch 214, causing the upper punch 214 to slide downward along the rotating track 2111, and then performing a stamping action on the powder in the corresponding module 4 of the middle die plate 3.

[0097] After the stamping 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, disengaging from the contact with the upper pressing wheel 215, and preparing for the next stamping cycle. In this way, the upper punch 214, during the rotation of the middle die plate 3, is driven by the upper pressing wheel 215 to stamp the powder at the corresponding position according to a fixed rhythm and sequence, thereby pressing the powder into shape within the module 4, ensuring that the tablet pressing process is carried out efficiently, stably and precisely, and meeting the process requirements for high-speed continuous production of tablets.

[0098] Refer to Figure 2 and Figure 3 , the lower punch member 22 includes a support disk 221, a lower rotating table 222, a lower punch 223, a lower pressing motor 224 and a lower pressing wheel 225. The support disk 221 is fixedly mounted on the box body 1, and one end of the rotating shaft 212 away from the track plate 211 is rotatably mounted on the support disk 221 coaxially. The support disk 221 is located below the middle die plate 3.

[0099] Refer to Figure 2 and Figure 3, the lower rotating table 222 is coaxially and fixedly installed on the rotating shaft 212. The lower rotating table 222 is located between the middle die plate 3 and the support plate 221. The lower punch 223 is vertically arranged. One end of the lower punch 223 close to the support plate 221 is the tail. The number and position of the lower punches 223 correspond one by one to those of the upper punches 214. The lower punches 223 are always directly below the upper punches 214. The tails of the lower punches 223 abut against the support plate 221. The lower punches 223 penetrate through the lower rotating table 222 and are slidably installed on the lower rotating table 222. The heads of the lower punches 223 are located in the tablet pressing holes 42, and the shapes of the heads of the lower punches 223 are adapted to the shapes of the tablet pressing holes 42.

[0100] Referring to Figure 2 and Figure 3 , the fixed end of the downward pressing motor 224 is fixedly installed on the support plate 221. The downward pressing wheel 225 is coaxially and fixedly connected to the output end of the downward pressing motor 224. The downward pressing wheel 225 is used to press the lower punch 223 that moves to the position of the downward pressing wheel 225 upward into the tablet pressing hole 42.

[0101] When the tablet press is running, the driving member 23, the upper pressing motor 216 and the downward pressing motor 224 are started. As the upper punching member 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 certain lower punch 223 rotates to the position in contact with the downward pressing wheel 225 along with the lower rotating table 222, the downward pressing motor 224 drives the downward pressing wheel 225 to rotate. Due to the contact relationship between the downward pressing wheel 225 and the lower punch 223, the downward pressing wheel 225 gives an upward thrust to the lower punch 223, 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. 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.

[0102] After the pressing is completed, as the lower rotating table 222 continues to rotate, the lower punch 223 disengages from the contact with the downward pressing wheel 225 and falls downward under the action of its own gravity to return to the initial position.

[0103] Referring to Figure 2 , the driving member 23 is a driving motor 231. The fixed end of the driving motor 231 is fixedly installed on the bottom of the inner wall of the box body 1. The output end of the driving motor 231 is coaxially and fixedly connected to the rotating shaft 212.

[0104] After the tablet press is ready for work, the power is turned on and the driving motor 231 starts to operate. The rotational force of the motor is directly transmitted to the rotating shaft 212. 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 punches 214 and the lower punches 223 perform stamping actions according to the established movement trajectories and rhythms, and cooperate to complete the powder pressing process.

[0105] Reference Figure 3 , the blanking part 6 includes a blanking protrusion 61, a blanking groove 62 and a baffle 63. The blanking protrusion 61 is fixedly installed on the support disk 221, and the blanking protrusion 61 is located on the side of the upper pressing wheel 215 and the lower pressing wheel 225 away from the feeding part 5. The blanking groove 62 is fixedly installed on the box body 1. One end of the blanking groove 62 abuts against the middle die plate 3. The baffle 63 is fixedly installed on the blanking groove 62 and abuts against the middle die plate 3. The baffle 63 is used to block the pressed tablets.

[0106] After the tablet press is started and the tablet pressing operation begins, as the middle die plate 3 rotates continuously, each module 4 successively passes through the tablet pressing process to press the powder into tablets. After the tablet pressing is completed, the lower punch 223 immediately rotates to the blanking protrusion 61. Under the action of the blanking protrusion 61, the lower punch 223 moves upward, and the head of the lower punch 223 is flush with the upper surface of the middle die plate 3, pushing out the pressed tablets from the tablet pressing hole 42. As the middle die plate 3 rotates to the baffle 63, under the action of the baffle 63, the pressed tablets are separated from the middle die plate 3 and are pushed into the blanking groove 62 and slide down along the blanking groove 62, completing the blanking process from the tablet press to the collection container.

[0107] Reference Figure 3 , Figure 4 and Figure 5 , the fastening assembly 7 includes a fixing ring 71, a rotating ring 72, a connecting rod 73, a clamping rod 74, a gear 75 and a rack 76. The fixing ring 71 is in a circular ring shape and is fixedly installed in the fastening cavity 31. The rotating rings 72 correspond to the number of modules 4 one by one. The rotating rings 72 are evenly sleeved on the fixing ring 71 at intervals. The rotating rings 72 are rotatably connected to the fixing 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.

[0108] Reference Figure 3 , Figure 4 and Figure 7 , the clamping rods 74 correspond to the number of modules 4 one by 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 fixing ring 71. The gear 75 is fixedly connected to two adjacent rotating rings 72 through a connecting rod. The rack 76 is slidably installed on the middle die plate 3. One end of the rack 76 penetrates through the middle die plate 3. The rack 76 meshes with the gear 75.

[0109] After installing module 4 into the installation hole of the middle die plate 3, in order to ensure that module 4 remains stable during high-speed rotation and tablet pressing, it is necessary to activate the fastening component 7. Push the rack 76 to slide on the middle die plate 3. The sliding of the rack 76 drives the rotation of the gear 75 meshing with it. 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 effect of the connecting rod 73, the clamping rod 74 gradually approaches module 4 and snaps into the clamping groove 41 of module 4. The clamping rod 74 applies pressure from the side of module 4. By virtue of the frictional force with module 4 and its own clamping force, it overcomes external forces such as centrifugal force and vibration force generated during the rotation of the middle die plate 3 and tablet pressing, firmly fixes module 4 in the installation hole of the middle die plate 3, prevents module 4 from loosening, shifting or falling out, etc., thus ensuring the accuracy and stability of the tablet pressing process and ensuring that the produced tablets are of qualified quality and consistent specifications.

[0110] When it is necessary to replace module 4, operate the rack 76 in the reverse direction to reverse the rotation of the gear 75, drive the rotating ring 72 to rotate in the reverse direction, loosen the clamping of module 4 by the clamping rod 74, and then the clamping of module 4 can be quickly released, and module 4 can be taken out for replacement or maintenance operations, realizing the quick clamping and removal of module 4 on the middle die plate 3 and improving the die change efficiency.

[0111] Refer to Figure 5 and Figure 6 As shown in FIGS.

[0112] Refer to Figure 5 and Figure 6 As shown in FIGS.

[0113] Refer to Figure 5 and Figure 6 As shown in FIGS.

[0114] 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 locking of 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 lower side to the higher side, the jacking block 83 will be continuously and smoothly jacked up. At this time, the spring 87 is compressed. While the jacking block 83 rises, the transition plates 84 hinged on both sides thereof will change the angle as the jacking block 83 moves upward, forming a slope to assist the lower punch 223 to climb smoothly along the transition plate 84.

[0115] When the lower punch 223 climbs to the highest position, the lower punch 223 ejects the module 4 upward from the middle mold plate 3, so that the module 4 can be easily removed from the middle mold plate 3 by tools or manually to replace the new module 4. As all the lower punches 223 pass by the jacking block 83, all the modules 4 are ejected from the middle mold plate 3, realizing the rapid disassembly of the module 4. After the jacking 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 sliding rod 85 move downward synchronously, driving the jacking block 83 to move downward and return to the initial position, completing the mold-changing jacking operation.

[0116] Refer to Figure 1 Three maintenance doors 9 are installed on the box body 1, and the maintenance doors 9 are made of transparent materials.

[0117] During the daily operation of the tablet press, the operator can view the operating conditions of the components inside the box body 1 through the transparent maintenance door 9 without opening the maintenance door 9. The operating state of the tablet press can be observed only through the transparent material. When the tablet press issues a fault alarm or the operator perceives that the equipment operation is abnormal, the maintenance door 9 is opened for detailed inspection to improve the efficiency of fault troubleshooting.

[0118] The implementation principle of a high-speed tablet press for pharmaceutical use in this application embodiment 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 sequentially circulates through different working areas. The feeding member 5 is responsible for feeding, and evenly scrapes the medicinal powder into the module 4 of the middle mold plate 3 by means of the scraping plate 53. The tablet pressing mechanism 2 performs tablet pressing, and realizes the stamping of the medicinal powder in the module 4 through the upper punch member 21 and the lower punch member 22, completing the process of compacting the medicinal powder into tablets. After the pressing is completed, the discharging chute 62 of the discharging member 6 receives the tablets coming out of the module 4, so that they can slide orderly into the collection container.

[0119] The fastening assembly 7 can quickly complete the locking of the module 4 to ensure the stability of the module 4, and at the same time can quickly release the locking 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 through the jacking assembly 8, realizing the high-efficiency replacement of the module 4.

[0120] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within 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), the lifting component (8) being mounted on the lower punch (22), the lifting component (8) being located on one side of the blanking component (6), and the lifting component (8) being used to eject the module (4) from the middle die plate (3) after blanking is completed; The lower punch (22) comprises: A support plate (221), the support plate (221) being fixedly mounted on the box body (1), 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); 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); 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).

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) further comprises: 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 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).

6. The pharmaceutical high-speed tablet press according to claim 5, 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.

7. 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).

8. The pharmaceutical high-speed tablet press according to claim 7, characterized in that: The inspection door (9) is made of transparent material.

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