An automated tablet press

Abstract

The application relates to the field of material forming processing, in particular to an automatic tablet press, which comprises a rack and a discharging mechanism, a tabletting mechanism, a powder cleaning mechanism and a discharging mechanism arranged on the rack; the tabletting mechanism comprises a rotating disc assembly, a pressing assembly, an ejection assembly and a rotating disc driving element; the rotating disc assembly comprises coaxially rotating upper rotating discs, a material carrying rotating disc and non-rotating lower rotating discs; the material carrying rotating disc is circumferentially provided with a plurality of material holes; the upper rotating disc is provided with upper mounting holes corresponding to the material holes and is slidably mounted with a lower pressing die rod; the lower rotating disc is provided with lower mounting holes corresponding to the material holes and is slidably mounted with an ejection die rod; the lower pressing die rod and the ejection die rod are in sliding fit; the powder cleaning mechanism comprises a powder suction head assembly and a suction pump for driving the powder suction head assembly to suck powder waste; the powder suction head assembly is mounted on the rack to suck the powder waste on the material carrying rotating disc; powder waste can be effectively prevented from easily adhering to the tablet-shaped products, the tabletting continuity of the tablet press is improved, and the production efficiency of the tablet press is improved.

Description

Technical Field

[0001] This application relates to the field of material forming and processing, and in particular to an automated tablet press. Background Technology

[0002] In numerous industrial sectors such as pharmaceuticals, food, and daily chemicals, the demand for compressing prepared raw materials into tablet form is widespread. With the continuous advancement of industrialization, the requirements for the performance and production efficiency of tableting equipment are also increasing. Highly efficient and stable tablet presses can improve production quality and output, reduce production costs, and occupy a crucial position in the entire production process. They not only affect the quality and appearance of the final product but also relate to the company's production efficiency and market competitiveness. Therefore, the development of tablet press technology plays a vital role in promoting the progress of related industries. For example, in the pharmaceutical industry, high-quality tablet production ensures the efficacy and safety of drugs; in the food industry, attractively shaped tablets are more popular with consumers; in the daily chemical industry, powdered raw materials are mixed and compressed into bath salt tablets, and high-quality bath salt tablets enhance the user experience. Good tableting technology helps companies improve product quality, enhance market competitiveness, and promote the healthy development of the entire industry. In existing technologies, to achieve the purpose of compressing raw materials into tablet form, conventional tablet presses typically have basic feeding and tableting functions. In terms of material feeding, powdered materials are generally directly conveyed to the tableting area through a simple hopper, lacking further processing and blending. Due to the poor flowability of the material, it is difficult to control the conveying speed and quantity. Especially during the tableting process, a relatively simple mold structure is often used, and tableting is completed through simple up-and-down pressing actions. This method has poor processing continuity. Moreover, it relies heavily on manual intervention or simple pushing devices to remove the tablets from the tableting machine, which can easily lead to damage to the tablets or untimely discharge during the unloading process. Existing tableting machines have significant drawbacks. On the one hand, a lot of powder waste is generated during the tableting process. This powder waste easily adheres to the tablets and falls off with them, affecting the purity and quality of the product, such as making the product appearance unclean and thus affecting product quality. On the other hand, the poor processing continuity results in low overall production efficiency, which cannot meet the needs of large-scale production, limiting the company's capacity expansion and economic benefits. Inefficient operations in stages such as feeding, tableting, and unloading all lead to a longer production cycle and difficulty in increasing output. Utility Model Content

[0003] In order to effectively prevent powder waste from adhering to the tablet product during the operation of the tablet press, and to improve the tablet pressing continuity, thereby further improving the production efficiency of the tablet press, this application provides an automated tablet press.

[0004] This application provides an automated tablet press, including a frame and a feeding mechanism, a tablet pressing mechanism, a powder cleaning mechanism, and a discharging mechanism disposed on the frame; the discharging end of the feeding mechanism is connected to the feeding end of the tablet pressing mechanism; the tablet pressing mechanism includes a turntable assembly, a pressing assembly, an ejection assembly, and a turntable drive component; the turntable assembly includes an upper turntable and a material-carrying turntable arranged coaxially from top to bottom on the frame, and a lower turntable fixedly disposed coaxially with the material-carrying turntable; the pressing assembly includes a lower pressing die rod; the ejection assembly includes an ejection die rod; the material-carrying turntable is circumferentially provided with a plurality of material holes; the discharging end of the feeding mechanism faces the material holes; and the upper turntable is provided with corresponding material holes. The lower pressing die rod is slidably mounted on the upper mounting hole, and the lower turntable is provided with a lower mounting hole corresponding to the material hole, and the ejector die rod is slidably mounted on it. The lower pressing die rod and the ejector die rod are slidably engaged so that after the lower pressing die rod presses down to form a sheet, the ejector die rod ejects the sheet product upward. The powder cleaning mechanism includes a powder suction head assembly and a suction pump that drives the powder suction head assembly to suck up powder waste. The powder suction head assembly is mounted on the frame to suck back the powder waste on the material-carrying turntable. The discharge mechanism includes a baffle plate and a discharge plate. The baffle plate is disposed on the turntable assembly to block the sheet product ejected by the ejector assembly, and the discharge plate and the baffle plate form a material guiding channel. By adopting the above technical solution, the feeding mechanism conveys the material to the material hole of the material-carrying turntable of the tableting mechanism. Since the discharge end of the feeding mechanism is connected to the feed end of the tableting mechanism, the continuity of material transmission is ensured. The upper and lower rotating discs of the turntable assembly rotate coaxially, while the lower rotating disc remains stationary and serves to mount the ejector rod, which slides along the surface of the lower rotating disc. The loading disc has multiple circumferential material holes that work in conjunction with the lower pressing rod of the upper disc and the ejector rod of the lower disc to perform tableting and ejection operations. This ensures a cyclical and orderly tableting process, improving the continuity of tableting. The powder cleaning mechanism's suction head, mounted on the frame, acts on the loading disc. A suction pump drives the suction head to draw back powder waste from the loading disc, promptly removing it during tableting to prevent it from adhering to the tablets, thus improving product purity and quality. The discharge mechanism's baffle plate blocks the ejected tablets, forming a guide channel that smoothly guides the tablets out, reducing damage and delays in discharge. Overall, this further improves the tablet press's production efficiency. Preferably, a downward limiting turntable is coaxially fixed above the upper turntable, the top of the downward pressing die rod is slidably abutting against the bottom of the downward limiting turntable, the downward limiting turntable extends downward and protrudes a first limiting part on the side near the feeding end, a first gap is provided between the upper turntable and the downward limiting turntable, and the distance between the first gap and the first limiting part becomes narrower.By adopting the above technical solution, a lower pressure limiting turntable is coaxially fixed above the upper turntable. When the top of the lower pressure die rod slidably abuts against the bottom of the lower pressure limiting turntable, the first limiting part protrudes downward from the side of the lower pressure limiting turntable near the feed end, causing the first gap between the upper turntable and the lower pressure limiting turntable to narrow at the first limiting part. This means that when the turntable assembly rotates to this position, the lower pressure die rod will be restricted by the first limiting part during sliding, causing it to move downward and apply pressure to the material. Because the initial position of the ejector die rod is set to block the bottom of the material hole, the material is tightly pressed into a sheet product from top to bottom, improving the compactness and quality of the tablets, further enhancing the tableting effect of the tablet press, and helping to improve overall production efficiency and product quality. Preferably, the bottom of the ejector die rod slidably abuts against the top of the lower turntable, the lower turntable has a second limiting part protruding upward from the side near the discharge end, and a second gap is provided between the lower turntable and the material-carrying turntable, with the second gap narrowing at the second limiting part. By adopting the above technical solution, since the bottom of the ejector rod can slide against the top of the lower turntable, and when the second limiting part protrudes upward from the side of the lower turntable near the discharge end, narrowing the second gap between the lower turntable and the material-carrying turntable at the second limiting part, the ejector rod will be pushed upward as it passes the second limiting part with the turntable assembly. In this way, the ejector rod can eject the sheet product upward more smoothly and accurately, ensuring that the sheet product is smoothly removed from the material-carrying turntable, further improving the continuity and stability of the tablet press's discharge process, and contributing to increased overall production efficiency. Preferably, the first limiting part and the second limiting part are staggered along the rotation direction of the turntable assembly. By adopting the above technical solution, since the first and second limiting parts are staggered along the rotation direction of the turntable assembly, when the turntable assembly rotates, the lower pressure die rod located at the non-first limiting part slides horizontally, and the ejector die rod located at the non-second limiting part also slides horizontally. The ejector die rod located at the non-second limiting part remains in a state of blocking the bottom of the material hole. Then, the lower pressure die rod first passes the first limiting part, and as the turntable assembly rotates, the lower pressure die rod slides downwards due to the narrowing gap caused by the first limiting part, further shaping and compacting the sheet product. After tableting, as the turntable assembly continues to rotate, it passes the second limiting part again, narrowing the gap, and slides upwards to eject the sheet product from the material hole of the loading turntable. This sequence and coordinated action ensures that the sheet product can be smoothly ejected and guarantees its forming quality, improving the continuity of tableting and product quality, thereby increasing the production efficiency of the tablet press. Preferably, both the first and second limiting parts are convex arc-shaped structures.By adopting the above technical solution, in the automated tablet press, the first and second limiting parts of the convex arc structure enable smoother sliding contact between the pressing die and the ejector die during the sliding contact process. This facilitates the continuity of the tableting and ejection of the tablet product, avoiding jamming that could affect production efficiency. Simultaneously, it helps to precisely control the pressing and ejection force and stroke, improving the quality and stability of the tablets, ensuring product compliance, and further enhancing the production efficiency and product quality of the automated tablet press. Preferably, the arc length of the first limiting part is greater than that of the second limiting part. By adopting the above technical solution, since the first limiting part corresponds to the pressing stroke of the pressing die and the second limiting part corresponds to the ejection stroke of the ejector die, the greater arc length of the first limiting part means a larger control range for the pressing stroke of the pressing die. This allows the pressing die to have more time and stroke to complete the pressing action on the material, enabling the material to be pressed more compactly and evenly into a tablet product, ensuring the quality and forming effect of the tablet, thereby improving the overall production quality and efficiency of the automated tablet press. Preferably, the powder cleaning mechanism has two powder suction head assemblies, each installed on both sides of the material-carrying turntable and connected to the suction pump. By adopting the above technical solution, the powder cleaning mechanism has two powder suction head assemblies installed on both sides of the material-carrying turntable and connected to the suction pump. When the suction pump starts, the two powder suction head assemblies can simultaneously suction back powder waste from both sides of the material-carrying turntable. Compared to a single powder suction head assembly, simultaneous suction from both sides expands the suction range, ensuring that powder waste at different locations is effectively removed to the maximum extent after one rotation of the material-carrying turntable. This reduces blind spots in powder suction, avoids residual powder waste, and more effectively suctions back powder waste from the material-carrying turntable, ensuring the purity and quality of the sheet product and improving the cleanliness of the product's appearance. Preferably, the powder suction head assembly includes a powder suction head and a suction pipe communicating with the powder suction head. The powder suction head is fixed to the frame and is a "U"-shaped cantilever double suction head structure with its opening facing the material-carrying turntable. The "U"-shaped cantilever double suction heads are respectively suspended above and below the material-carrying turntable. By adopting the above technical solution, the powder suction head is fixed to the frame and the powder waste is sucked away by the suction pipe. The "U"-shaped cantilever double suction head structure with its opening facing the material-carrying turntable and its two ends suspended above and below the material-carrying turntable, specifically, the "U"-shaped cantilever double suction heads are arranged opposite each other and are respectively suspended above and below the material-carrying turntable. This can stably suck back the powder waste at the upper and lower ends of the material-carrying turntable, effectively preventing powder waste from adhering to the sheet product and improving product purity and quality. Preferably, the discharge plate is inclined downwards on the frame. By adopting the above technical solution, the discharge plate is set at a downward angle on the frame. Using gravity, the sheet-like products that are blocked by the baffle plate and ejected from the ejection component can slide down naturally along the discharge plate.In this way, material discharge can be completed smoothly without complex power devices or manual intervention, reducing the possibility of damage to sheet products during the discharge process and avoiding untimely discharge, thereby improving the smoothness and stability of discharge and thus improving the overall production efficiency of the tablet press. Preferably, the feeding mechanism includes a feeding bin and a mixing bin. The feeding bin is installed on the frame and its discharge end is connected to the feeding end of the mixing bin. The mixing bin is installed on the frame and located on one side of the material-carrying turntable. The mixing bin is equipped with a mixing component, and the bottom of the mixing bin is provided with a discharge port facing the material hole. After the mixing component agitates the material, the material flows from the discharge port into the material hole of the material-carrying turntable. By adopting the above technical solution, the feeding mechanism is provided with a feeding bin and a mixing bin, and the feeding bin conveys the material to the mixing bin. Because the material itself has poor flowability, it is difficult to control the conveying speed and quantity if it is directly fed into the material hole of the material carrier turntable. However, the stirring components in the stirring chamber can improve the flowability of the material while stirring it, so that the material can flow more smoothly from the discharge port at the bottom of the stirring chamber to the material hole of the material carrier turntable. This improves the stability and controllability of the material conveying, which is conducive to the smooth progress of subsequent tableting work, and thus improves the overall production efficiency of the tablet press.

[0005] In summary, this application includes at least one of the following beneficial technical effects: 1. The powder suction head assembly of the powder cleaning mechanism sucks back the powder waste on the material carrier turntable, which can prevent the powder waste from adhering to the sheet products and improve the purity and quality of the products; 2. The feeding mechanism, tableting mechanism and discharging mechanism work together. The turntable assembly, pressing assembly and ejection assembly of the tableting mechanism work together to achieve continuous feeding, tableting and discharging operations, and improve the continuity of tableting. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of an automated tablet press according to this application; Figure 2 This is a rear view of an automated tablet press according to this application.

[0007] Explanation of reference numerals in the attached figures: 1. Frame; 2. Feeding mechanism; 3. Tableting mechanism; 4. Powder cleaning mechanism; 5. Discharge mechanism; 6. Protective cover; 21. Feeding bin; 22. Mixing bin; 221. Mixing assembly; 31. Turntable assembly; 32. Pressing assembly; 33. Ejection assembly; 34. Turntable drive; 311. Lower pressure limiting turntable; 312. Upper turntable; 313. Loading turntable; 314. Lower turntable; 321. Lower pressure die rod; 331. Ejection die rod; 311a. First limiting part; 311b. First gap; 314a. Second limiting part; 314b. Second gap; 41. Powder suction head; 42. Suction pipe; 51. Baffle plate; 52. Discharge plate. Detailed Implementation

[0008] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0009] This application discloses an automated tablet press, referring to... Figure 1 and Figure 2 The system includes a frame 1 and a feeding mechanism 2, a tableting mechanism 3, a powder cleaning mechanism 4, and a discharge mechanism 5, all mounted on the frame 1. The discharge end of the feeding mechanism 2 is connected to the feeding end of the tableting mechanism 3. The powder cleaning mechanism 4 is mounted on the frame 1 and acts on the tableting mechanism 3. The discharge mechanism 5 is mounted on the frame 1 and located on one side of the feeding mechanism 2. These mechanisms cooperate to automate the tableting process from raw material feeding to finished product discharge, greatly improving production efficiency and preventing powder waste from adhering to the tablet product, thus ensuring product purity and quality. Specifically, in this embodiment, the feeding mechanism 2 includes a feeding bin 21 and a mixing bin 22. The mixing chamber 22 is equipped with a mixing component 221 and a discharge port. Both the feeding chamber 21 and the mixing chamber 22 are hopper-shaped structures. The bottom of the mixing chamber 22 is equipped with an abutment plate. The feeding chamber 21 is firmly installed on the frame 1 by bolts and other connecting parts. The mixing chamber 22 is installed on the frame 1 and located directly below the feeding chamber 21. The abutment plate of the mixing chamber 22 abuts against the tableting mechanism 3 to realize the continuous conveying of materials. The discharge end of the feeding chamber 21 is connected to the opening of the feeding end of the mixing chamber 22 through a feeding pipe. In this way, the raw materials can smoothly and leak-free enter the mixing chamber 22 from the feeding chamber 21.

[0010] In this embodiment, the stirring assembly 221 includes a stirring shaft and stirring blades. The stirring shaft is generally a metal shaft with high strength. One end of the stirring shaft is connected to the output shaft of a motor via a coupling. The motor is fixedly mounted on the frame 1 outside the stirring chamber 22. When the motor starts, it drives the stirring shaft to rotate via the coupling. The stirring blades in this embodiment are helical blades, welded or bolted to the stirring shaft, and can fully stir the material under the drive of the stirring shaft. After the stirring assembly 221 stirs the material, the material flows from the discharge port at the bottom of the stirring chamber 22 into the tableting mechanism 3. The discharge port in this embodiment is a flat, elongated opening. Specifically, the tableting mechanism 3 in this embodiment includes a turntable assembly 31, a pressing assembly 32, an ejection assembly 33, and a turntable drive component 34. In this embodiment, the turntable drive component 34 includes a drive motor and a central shaft. The turntable assembly 31 includes, from top to bottom, a lower pressure limiting turntable 311, an upper turntable 312, a material loading turntable 313, and a lower turntable 314. The lower pressure limiting turntable 311 and the lower turntable 314 are fixed, while the upper turntable 312 and the material loading turntable 313 can rotate coaxially. Specifically, the lower pressure limiting turntable 311, the upper turntable 312, the material loading turntable 313, and the lower turntable 314 are connected in the middle... The central shaft has a central hole, and the three central holes are connected together by a central shaft. The upper and lower ends of the central shaft are respectively mounted on the frame 1 by bearings to ensure that it can rotate flexibly. The upper turntable 312 and the material-carrying turntable 313 are fixedly connected to the central shaft to achieve coaxial rotation. The lower pressure limiting turntable 311 and the lower turntable 314 are respectively fixed to the top and bottom of the frame 1. The central shaft is driven to rotate by a motor, thereby driving the upper turntable 312 and the material-carrying turntable 313 to rotate synchronously.

[0011] Specifically, in this embodiment, the material-carrying turntable 313 is circumferentially provided with several material holes for filling powder materials. The mixing chamber 22 abuts against the bottom of the material-carrying turntable 313, so that the outlet of the mixing chamber 22 faces the material hole, allowing the material to fall accurately into the material hole. The pressing assembly 32 includes several lower pressing die rods 321, and the ejection assembly 33 includes several ejection die rods 331. The upper turntable 312 is provided with several upper mounting holes corresponding to the material holes, and the lower pressing die rods 321 are slidably installed in each hole. The lower turntable 314 is provided with several lower mounting holes corresponding to the material holes, and the ejection die rods 331 are slidably installed in each hole. The lower pressing die rods 321 and the ejection die rods 331 are typically made of high-strength steel to ensure that they do not deform during the tableting process. A guide sleeve is fitted around the outer periphery of the pressing die rod 321. The guide sleeve is interference-fitted into the upper mounting hole, allowing the pressing die rod 321 to slide up and down within the upper mounting hole under the action of the guide sleeve. The guide sleeve reduces friction between the pressing die rod 321 and the upper mounting hole, improving the smoothness of sliding. Similarly, a guide sleeve is fitted around the outer periphery of the ejector die rod 331. The guide sleeve is interference-fitted into the lower mounting hole, allowing the ejector die rod 331 to slide within the lower mounting hole under the action of the guide sleeve. The installation of guide sleeves to allow the pressing die rod 321 to slide within the upper mounting hole is existing technology and will not be elaborated upon here. Specifically, in this embodiment, a pressing limit turntable 311 is coaxially fixed above the upper turntable 312. The pressing limit turntable 311 is fixedly connected to the frame 1 via multiple support rods. One end of each support rod is welded to the pressing limit turntable 311, and the other end is connected to the frame 1 via bolts. The pressure limiting turntable 311 is provided with an annular groove for the pressure die rod 321 to slide against, so that the top of the pressure die rod 321 can slide against the bottom groove of the pressure limiting turntable 311.

[0012] Furthermore, in this embodiment, the downward limiting turntable 311 extends downward and protrudes a first limiting part 311a near the discharge end. The first limiting part 311a is provided with a corresponding sliding groove. A first gap 311b is provided between the upper turntable 312 and the downward limiting turntable 311. The distance between the first gap 311b and the first limiting part 311a narrows. The first limiting part 311a is a downwardly protruding convex arc structure. When the downward pressing die rod 321 rotates with the upper turntable 312 and passes through the first limiting part 311a, the downward pressing die rod 321 will be further pressed down under the compression of the first limiting part 311a due to the narrowing of the first gap 311b, thereby applying a downward pressure to the sheet and ensuring the forming quality of the sheet product.

[0013] Specifically, in this embodiment, the lower turntable 314 is provided with an annular groove, allowing the bottom of the ejector rod 331 to slide against the annular groove at the top of the lower turntable 314. A second limiting portion 314a extends upward from the side of the lower turntable 314 near the discharge end, and the second limiting portion 314a is also provided with a groove to allow the ejector rod 331 to slide continuously. A second gap 314b is provided between the lower turntable 314 and the material-carrying turntable 313, and the distance between the second gap 314b and the second limiting portion 314a narrows. The second limiting portion 314a can also be a convex arc-shaped structure. When the ejector rod 331 rotates with the lower turntable 314 and passes through the second limiting portion 314a, due to the narrowing of the second gap 314b, the ejector rod 331 is pushed upward by the second limiting portion 314a, thereby ejecting the sheet-like product. Specifically, the first limiting part 311a and the second limiting part 314a are staggered along the rotation direction of the turntable assembly 31. The distance between the first limiting part 311a and the discharge mechanism 5 is greater than the distance between the second limiting part 314a and the discharge mechanism 5, and the arc length of the first limiting part 311a is greater than the arc length of the second limiting part 314a. This design allows the pressing and ejecting actions to be staggered by a certain time difference, and the pressing time is greater than the ejection time, which can more rationally complete the tableting and discharge process.

[0014] Specifically, the initial state of the pressing die 321 is that its top slides against the pressing limit turntable 311, and its bottom is suspended directly above the material hole, with its bottom edge able to fit tightly into the inner wall of the material hole. The pressing state of the pressing die 321 is that when it is in the position of the first limiting part 311a, the pressing die 321 presses down. The initial state of the ejector die 331 is that its bottom slides against the lower turntable 314, and its top is inserted from the bottom of the material hole to seal the material hole. In the ejection state 1, after the pressing die rod 321 presses down to form the product, when the lower turntable 314 rotates to the second limiting part 314a, the ejector die rod 331 ejects the formed sheet-like product upwards. Therefore, the pressing die rod 321 and the ejector die rod 331 slide together. When the turntable rotates to a specific position, the pressing die rod 321 moves downwards to press the material in the material hole, forming a sheet-like product. Then, the ejector die rod 331 moves upwards to eject the formed sheet-like product. Specifically, the powder cleaning mechanism 4 in this embodiment includes two powder suction head 41 assemblies and a suction pump that drives the powder suction heads 41 to draw in the powder. The two powder suction head 41 assemblies are fixedly installed on the frame 1 by bolts and are respectively located at appropriate positions on both sides of the material-carrying turntable 313 to ensure that the powder waste on the material-carrying turntable 313 can be effectively sucked back. The powder suction head 41 assembly specifically includes a powder suction head 41 and a suction pipe 42 connected to the powder suction head 41. The powder suction head 41 is a "U"-shaped cantilevered double suction head structure with its opening facing the material-carrying turntable 313. The "U"-shaped cantilevered double suction heads are suspended above and below the material-carrying turntable 313, allowing the "U"-shaped cantilevered double suction head structure to better cover the upper and lower surfaces of the material-carrying turntable 313 and effectively remove powder waste. Both powder suction heads 41 are connected to a suction pump via the suction pipe 42. The two ends of the suction pipe 42 are sealed to the powder suction head 41 and the suction pump via pipe clamps or flanges. When the suction pump starts, it generates suction, drawing the powder waste on the material-carrying turntable 313 through the powder suction head 41 and suction pipe 42 and discharging it. The suction pump is a centrifugal suction pump with high suction power, capable of quickly drawing in and discharging powder waste. Specifically, the discharge mechanism 5 in this embodiment includes a baffle plate 51 and a discharge plate 52. The baffle plate 51 is bolted or welded to the frame 1 and located on the upper surface of the material-carrying turntable 313, abutting against the upper surface. The height of the baffle plate 51 is lower than the distance between the lower die rod 321 and the material hole, ensuring that the baffle plate 51 does not affect the normal rotation of the lower die rod 321 when it rotates. It is used to block the sheet-like products ejected by the ejection assembly 33. The discharge plate 52 and the baffle plate 51 form a guide channel. The discharge plate 52 is installed on the frame 1 at a downward inclination via a bracket. One end of the bracket is welded to the discharge plate 52, and the other end is bolted to the frame 1. In this way, when the sheet-like products are blocked by the baffle plate 51, they will slide down the discharge plate 52 and be smoothly discharged through the guide channel. The discharge plate 52 is made of a smooth metal plate to reduce the friction when the sheet-like products slide down, ensuring smooth discharge.

[0015] Specifically, in this embodiment, the frame 1 is also provided with two protective covers 6. The protective covers 6 are connected to the frame 1 by a telescopic rod to open and close. The top of the protective cover 6 is rotatably set on the top edge of the frame 1. The two ends of the telescopic rod are fixed to the bottom of the frame 1 and the protective cover 6, respectively. When the operator pulls the bottom of the protective cover 6 upward, the protective cover 6 flips over and the telescopic rod is in a stretched state. When the protective cover 6 is opened to a certain angle, the telescopic rod is in its maximum stretched state and can support the protective cover 6, so that the protective cover 6 will not flip downward, making it convenient for the operator to check the operating status of the tablet press.

[0016] The tablet press in this embodiment is also equipped with a control system to control the opening or closing of the drive sources of each part of the tablet press. The implementation principle of this embodiment is as follows: the powder material first enters the feeding mechanism 2, and smoothly enters the mixing chamber 22 through the feeding hopper 21 and the feeding pipe. In the mixing chamber 22, the stirring shaft with spiral stirring blades is driven by the motor to fully stir the material. Then the material flows from the flat strip-shaped discharge port at the bottom of the mixing chamber 22 to the tablet pressing mechanism 3. In the tablet pressing mechanism 3, the material carrier turntable 313 rotates under the drive of the motor. The abutment plate of the mixing chamber 22 makes the discharge port face the material hole of the material carrier turntable 313, and the material falls accurately into the material hole. The lower pressing die rod 321 of the upper turntable 312 initially abuts against the bottom sliding groove of the lower pressing limit turntable 311 at the top and is suspended above the material hole at the bottom. When the turntable rotates to the first limit part 311a, it is pressed down because the gap narrows. Pressure is applied to the material in the feed hole to form a sheet product. Then, the lower turntable 314 rotates to the second limiting part 314a. Its ejector rod 331 initially abuts against the top groove of the lower turntable 314 and blocks the feed hole at the top. At this time, due to the narrowing gap, it is pushed upward, ejecting the formed sheet product. At the same time, the two "U"-shaped cantilever double suction head components 41 of the powder cleaning mechanism 4, under the action of the suction pump, respectively suck back the powder waste on the upper and lower surfaces of the material-carrying turntable 313. Finally, the baffle plate 51 of the discharge mechanism 5 blocks the ejected sheet product, allowing it to be smoothly discharged along the guide channel formed by the inclined discharge plate 52, completing the entire automated tableting process from feeding to finished product discharge. This structural design can effectively prevent powder waste from easily adhering to the sheet product during the operation of the tablet press, and at the same time improve the tableting continuity of the tablet press, thereby further improving the production efficiency of the tablet press.

[0017] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automated tablet press, characterized in that, It includes a frame (1) and a feeding mechanism (2), a tableting mechanism (3), a powder cleaning mechanism (4) and a discharging mechanism (5) disposed on the frame (1); The discharge end of the feeding mechanism (2) is connected to the feed end of the tableting mechanism (3); The tablet pressing mechanism (3) includes a turntable assembly (31), a pressing assembly (32), an ejection assembly (33), and a turntable drive (34). The turntable assembly (31) includes an upper turntable (312) and a loading turntable (313) arranged sequentially from top to bottom on the frame (1) and coaxially rotatable, and a lower turntable (314) fixedly arranged coaxially with the loading turntable (313). The pressing assembly (32) includes a lower pressing die rod (321). The ejection assembly (33) includes an ejection die rod (331). The loading turntable (312) includes a lower pressing die rod (321). 13) A plurality of material holes are provided in the circumferential direction. The discharge end of the feeding mechanism (2) faces the material holes. The upper turntable (312) is provided with an upper mounting hole corresponding to the material holes and the lower pressing die rod (321) is slidably installed thereon. The lower turntable (314) is provided with a lower mounting hole corresponding to the material holes and the ejector die rod (331) is slidably installed thereon. The lower pressing die rod (321) and the ejector die rod (331) are slidably engaged so that after the lower pressing die rod (321) presses down to form a sheet, the ejector die rod (331) ejects the sheet product upward. The powder cleaning mechanism (4) includes a powder suction head (41) assembly and a suction pump that drives the powder suction head (41) assembly to suck up powder waste. The powder suction head (41) assembly is mounted on the frame (1) to suck up the powder waste on the material loading turntable (313). The discharge mechanism (5) includes a baffle plate (51) and a discharge plate (52). The baffle plate (51) is disposed on the turntable assembly (31) to block the sheet-like product ejected by the ejection assembly (33). The discharge plate (52) and the baffle plate (51) form a material guiding channel.

2. The automated tablet press according to claim 1, characterized in that, A pressure limiting turntable (311) is coaxially fixed above the upper turntable (312). The top of the pressure die rod (321) can slide against the bottom of the pressure limiting turntable (311). The pressure limiting turntable (311) extends downward and protrudes a first limiting part (311a) near the feed end. A first gap (311b) is provided between the upper turntable (312) and the pressure limiting turntable (311). The distance between the first gap (311b) and the first limiting part (311a) becomes narrower.

3. The automated tablet press according to claim 2, characterized in that, The bottom of the ejector rod (331) can slide against the top of the lower turntable (314). The lower turntable (314) extends upward and is provided with a second limiting part (314a) near the discharge end. A second gap (314b) is provided between the lower turntable (314) and the material-carrying turntable (313). The distance between the second gap (314b) and the second limiting part (314a) becomes narrower.

4. The automated tablet press according to claim 3, characterized in that, The first limiting part (311a) and the second limiting part (314a) are staggered along the rotation direction of the turntable assembly (31).

5. The automated tablet press according to claim 3, characterized in that, Both the first limiting part (311a) and the second limiting part (314a) are convex arc-shaped structures.

6. The automated tablet press according to claim 3, characterized in that, The arc length of the first limiting part (311a) is greater than the arc length of the second limiting part (314a).

7. The automated tablet press according to claim 1, characterized in that, The powder cleaning mechanism (4) has two powder suction head (41) assemblies, which are respectively installed on both sides of the material carrier turntable (313) and are both connected to the suction pump.

8. The automated tablet press according to claim 1, characterized in that, The powder suction head (41) assembly includes a powder suction head (41) and a suction pipe (42) communicating with the powder suction head (41). The powder suction head (41) is fixed to the frame (1). The powder suction head (41) is a "U"-shaped cantilever double suction head structure with its opening facing the material carrier turntable (313). The "U"-shaped cantilever double suction heads are respectively suspended at the upper and lower ends of the material carrier turntable (313).

9. The automated tablet press according to claim 1, characterized in that, The discharge plate (52) is inclined downward on the frame (1).

10. The automated tablet press according to claim 1, characterized in that, The feeding mechanism (2) includes a feeding bin (21) and a mixing bin (22). The feeding bin (21) is installed on the frame (1) and its discharge end is connected to the feeding end of the mixing bin (22). The mixing bin (22) is installed on the frame (1) and located on one side of the material carrier turntable (313). A mixing component (221) is provided inside the mixing bin (22). The bottom of the mixing bin (22) is provided with a discharge port facing the material hole. After the mixing component (221) mixes the material, the material flows from the discharge port into the material hole of the material carrier turntable (313).

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