High-speed tablet press capable of realizing quick die change of tablets of multiple specifications and die change method of high-speed tablet press

Abstract

The invention discloses a high-speed tablet press capable of achieving quick die change of tablets of multiple specifications and a die change method of the high-speed tablet press, and relates to the field of tablet presses. The invention discloses a high-speed tablet press capable of realizing quick die change of tablets with multiple specifications. The high-speed tablet press comprises a base station, a turntable I and a turntable II, the multiple groups of forming sleeves are circumferentially arranged in the mounting groove of the turntable I at equal intervals; the multiple sets of forming sleeves and pressing rods are arranged in a diameter decreasing mode and are matched with synchronous rotating position adjustment of the first rotating disc and the second rotating disc, the forming sleeves and the pressing rods of the corresponding specifications can be switched to machining positions when the forming sleeves and the pressing rods rotate by 90 degrees every time, frequent disassembly and assembly during die replacement are avoided, and the die replacement efficiency is improved. Before use, the vibration probe detects the vibration frequency of each forming sleeve and records initial calibration data, the vibration frequency of the free forming sleeve is synchronously detected during processing, and the worn forming sleeve, the pressing rod or the top block can be quickly positioned by comparing the vibration frequency with the initial data, so that a worker can conveniently and independently replace a damaged part in time; and tablet quality reduction and batch production of unqualified products caused by abrasion of parts are avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tablet press, in particular, relates to a high-speed tablet press capable of realizing rapid die changing of multi-specification tablets and a die changing method thereof. BACKGROUND

[0002] A tablet is a solid dosage form obtained by compressing drug powder, excipients and other materials, and is widely used in the pharmaceutical, health care product and food industries. It has the advantages of convenient use, accurate dosage, good stability, easy storage and transportation, and is one of the most common dosage forms on the market. Different application scenarios have diverse requirements for the particle size, shape and hardness of tablets.

[0003] The tablet forming process requires applying pressure to loose powder or granular materials to make them tightly combined into a fixed shape. A tablet press is the core equipment for realizing this process. Manual compression is not only extremely inefficient, but also difficult to ensure uniform tablet density and uniform specifications, and cannot meet the needs of large-scale production. A tablet press can realize continuous and efficient compression through die cooperation, accurately control the compression pressure and forming size, and ensure stable tablet quality, so it is an essential key equipment for industrial production of tablets. To adapt to the production of tablets of different particle sizes, existing plate-type tablet presses often use detachable die designs. However, the dies are usually integrated into different pressure plates, with multiple compression grooves and compression rods integrated into different pressure plates. During production, the tablets are first subjected to quality inspection, and when unqualified tablets are found, the pressure plate dies need to be inspected to determine the number of damaged compression grooves and compression rods. This process increases the workload of production managers and reduces production efficiency. Moreover, if the number of damaged compression grooves and compression rods does not reach the replacement threshold, the cost of replacing the entire die is higher than the cost of processing defective products, and the die needs to be used for production until the number of damaged parts meets the standard. Before the entire die is replaced, the compression grooves and compression rods on the die will be damaged one by one, resulting in the continuous production of a large number of unqualified tablets, which requires additional manpower for sorting and processing, increasing production costs. SUMMARY

[0004] The present application provides a high-speed tablet press capable of realizing rapid die changing of multi-specification tablets. By detecting and recording the initial vibration frequency of the forming sleeve and comparing it with the frequency of the idle forming sleeve during processing, the worn parts can be quickly located and replaced in time, avoiding the decline in tablet quality and the mass production of unqualified products, thereby solving the problems raised in the above background technology. To achieve the above object, the high-speed tablet press capable of realizing quick die changing of multi-specification tablets comprises a base, a rotating disc I and a rotating disc II connected to the base, a plurality of forming sleeves circumferentially and equidistantly arranged in mounting grooves of the rotating disc I, each forming sleeve being detachably connected to the mounting groove, a plurality of pressing rods circumferentially and equidistantly connected to the rotating disc II through mounting plates for pressing and forming tablets, each pressing rod being detachably connected to the mounting plate, wherein the diameters of the plurality of forming sleeves and the pressing rods are arranged in a decreasing order, a top block slidably connected to the forming sleeve for ejecting the formed tablets from the forming sleeve, a plurality of fixing seats liftably connected to the base and arranged above one of the forming sleeves, a plurality of vibration probes with vibration sensors circumferentially and equidistantly arranged on the fixing seats, and a vibrator fixedly installed in a mounting cavity of the base.

[0005] On this basis, the forming sleeve is threadedly connected to the mounting groove, and the pressing rod is detachably connected to the mounting plate through a fixing bolt. In the above technical solution, the setting of the thread and the bolt simplifies the operation steps of replacing the worn parts and facilitates quick replacement of the worn parts.

[0006] On this basis, the rotating disc II is fixedly connected with guide rods, the mounting plate is slidably connected to the guide rods, the lower end of the guide rod is integrally formed with a limiting block, a spring is sleeved on the guide rod, one end of the spring is fixedly connected to the mounting plate, and the other end is fixedly connected to the limiting block, and a hydraulic telescopic rod is fixedly installed on the base and located above the mounting plate. In the above technical solution, during tablet processing, the hydraulic telescopic rod, the guide rod and the spring cooperate to stably lift the pressing rod, ensure the accurate action of the pressing rod of different diameters on the corresponding forming sleeve, and stabilize the tablet pressing force to avoid uneven tablet formation and density fluctuation.

[0007] On this basis, an electric telescopic rod I is fixedly installed in the mounting groove, and the top block is threadedly connected to the telescopic end of the electric telescopic rod I. In the above technical solution, the setting of the electric telescopic rod I facilitates the removal of the pressed and formed tablets from the forming groove.

[0008] On this basis, a feeding frame is slidably connected to the base, air cylinders are fixedly installed on the base and fixedly connected to the sidewall of the feeding frame, one end of the feeding frame is provided with a pushing groove, a dropping groove is provided on the rotating disc I, a collecting groove is formed on the base and corresponds to the dropping groove, and one side of the lower end surface of the collecting groove is arranged in an inclined downward manner. In the above technical solution, during tablet processing, the air cylinder drives the feeding frame to slide, the pushing groove of the feeding frame pushes the ejected tablets into the collecting groove and then into a collecting container, the top block is reset, the powder in the feeding frame falls into the forming sleeve and is filled by vibration to realize uniform feeding, and the process connection of the collecting and feeding avoids equipment jamming.

[0009] On this basis, the base is rotatably connected with a rotating shaft and a rotating shaft, the rotating shaft is fixedly connected with the first rotating disc, and the rotating shaft is fixedly connected with the second rotating disc, a belt wheel is fixedly installed on the rotating shaft and the rotating shaft, the two belt wheels are connected through a belt, a motor is fixedly installed in the cavity in the base, and the output end of the motor is fixedly connected with the rotating shaft; In the technical scheme, the motor drives the double rotating discs to rotate synchronously through the belt wheel and the belt, the driving structure is simplified, the rotating speeds are kept synchronous, and the rotating coordination is improved.

[0010] On this basis, the base is rotatably connected with a rotating shaft and a rotating shaft, the rotating shaft is fixedly connected with the first rotating disc, and the rotating shaft is fixedly connected with the second rotating disc, a belt wheel is fixedly installed on the rotating shaft and the rotating shaft, the two belt wheels are connected through a belt, a motor is fixedly installed in the cavity in the base, and the output end of the motor is fixedly connected with the rotating shaft; In the technical scheme, when the probe is inserted into the forming sleeve, the electric telescopic rod two adjusts the distance between the probe and the inner wall of the forming sleeve according to different specifications, the detection conditions of different specifications are kept consistent, and the detection accuracy is improved.

[0011] On this basis, a negative pressure cavity is formed in the base plate, a pipeline is arranged on the base plate, one end of the pipeline is communicated with the negative pressure cavity, the other end is used for external connection of a dust suction pump, and a suction cavity communicated with the negative pressure cavity is formed in the fixed seat; In the technical scheme, when the vibration is detected, the vibrator peels off the residual powder on the top block and the inner wall of the forming sleeve, the external dust suction pump sucks away the powder through the suction cavity, the detection precision and the machining quality are prevented from being affected, and the vibration detection accuracy and the equipment machining stability are improved.

[0012] On this basis, a gas bag is embedded on the outer wall of the fixed seat, the gas bag is arranged in a ring shape, a gas conveying pipe is arranged on the gas bag, a plurality of gas injection pipes are arranged on the lower end surface of the fixed seat at equal intervals, the gas bag is communicated with the gas injection pipes through a gas conveying cavity, and the diameter of the gas conveying pipe is greater than the diameter of the gas conveying cavity. In the technical scheme, the residual powder is cleaned through the cooperation of the gas injection and the negative pressure dust suction, the cleanliness and the efficiency are improved, and the detection accuracy and the equipment machining stability are ensured.

[0013] The method comprises the following steps: Step one: the fixed seat is lowered, the vibration probe is inserted into the idle forming sleeve, the vibrator is started to detect and record the vibration frequency as initial data, and then the fixed seat is moved upward to reset; Step two: the double rotating discs are driven to rotate synchronously, step one is repeated to detect the next forming sleeve every 90 degrees, after all the calibrations are completed, the rotating discs are continuously rotated to move the required specification forming sleeve and the pressing rod to the machining position and stop, and then the tablets can be machined; Step three: repeat step one detection in processing, compare the current and initial vibration frequency, locate the damaged parts, then replace the forming sleeve, pressure rod and top block, and after replacement, re-detect and calibrate, and continue processing when normal; Step four: when different particle size tablets need to be produced, the double rotary plates are synchronously rotated to drive multiple sets of forming sleeves and pressure rods to rotate, and each rotation of 90 degrees can adjust a set of forming sleeve and pressure rod to the processing position, until the corresponding diameter forming sleeve and pressure rod are rotated to the processing position, and then the tablet processing can be continued.

[0014] After adopting the technical scheme, the present application has the following beneficial effects compared with the prior art: The high-speed tablet press capable of realizing rapid die changing of multiple specifications of tablets, multiple sets of forming sleeves and pressure rods are arranged in a decreasing diameter mode, and are adjusted in position in cooperation with the synchronous rotation of rotary plate one and rotary plate two, and each rotation of 90 degrees can switch the corresponding specification forming sleeve and pressure rod to the processing position, avoiding frequent disassembly and installation during die changing, and improving the die changing efficiency; The high-speed tablet press capable of realizing rapid die changing of multiple specifications of tablets, before use, the vibration frequency of each forming sleeve is detected by a vibration probe, and initial calibration data are recorded, and during processing, the vibration frequency of the idle forming sleeve is detected synchronously, and compared with the initial data, the worn forming sleeve, pressure rod or top block can be quickly located, damaged parts can be replaced in time by the staff, avoiding the decrease of tablet quality and the batch production of unqualified products due to part wear; The high-speed tablet press capable of realizing rapid die changing of multiple specifications of tablets, the electric telescopic rod two adjusts the distance between the probe and the inner wall according to the diameter of the forming sleeve, ensures that the vibration detection contact conditions of multiple specifications of forming sleeves are consistent, and the signal collection is stable, avoiding the influence of detection deviation on the wear judgment accuracy; The high-speed tablet press capable of realizing rapid die changing of multiple specifications of tablets, when processing and adding materials, the vibration generated by the vibrator can fill the powder in the forming sleeve, avoiding the existence of supporting force between the powders to cause uneven filling, and preventing the inconsistency of tablet density.

[0015] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] In the drawings: Figure 1 is a structural diagram of the present application Figure 1 ; Figure 2 is a structural diagram of the present application Figure 2 ; Figure 3 is a front view of the base, rotary plate one and rotary plate two of the present application; Figure 4 is a rear view of the base, rotary plate one and rotary plate two of the present application; Figure 5is the right view of the base, the first turntable and the second turntable of the application; Figure 6 is the sectional view of the base, the first turntable and the second turntable of the application; Figure 7 is the schematic diagram of part structure of the application; Figure 8 is the schematic diagram of the feeding frame and the pushing chute of the application; Figure 9 is the sectional view of the mounting plate and the pressing rod of the application Figure 1 ; Figure 10 is the sectional view of the mounting plate and the pressing rod of the application Figure 2 ; Figure 11 is the enlarged view of part A of the application Figure 6 ; Figure 12 is the enlarged view of part B of the application Figure 7 .

[0017] In the figure: 1, base; 101, the first turntable; 102, the rotating shaft; 103, the second turntable; 104, the rotating shaft; 105, the motor; 106, the belt; 2, the forming sleeve; 201, the top block; 202, the first electric telescopic rod; 203, the blanking chute; 204, the collecting chute; 3, the feeding frame; 301, the air cylinder; 302, the pushing chute; 4, the guide rod; 401, the mounting plate; 402, the pressing rod; 403, the spring; 404, the hydraulic telescopic rod; 5, the vibrator; 6, the base plate; 601, the fixed seat; 602, the vibration sensor; 603, the vibration probe; 604, the second electric telescopic rod; 605, the third electric telescopic rod; 7, the suction cavity; 701, the negative pressure cavity; 702, the pipeline; 703, the air bag; 704, the gas conveying pipe; 705, the gas conveying cavity; 706, the air jet pipe. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the application. The following embodiments are used to illustrate the application, but not to limit the scope of the application.

[0019] Embodiment 1: refer to Figure 1 , Figure 2 , Figure 3 , Figure 5The high-speed tablet press can realize rapid die changing of multi-specification tablets, comprising a base 1, a rotating disc 1 101 and a rotating disc 2 103 which are rotatably connected to the base 1; a plurality of forming sleeves 2 which are circumferentially and equidistantly arranged in the mounting slots of the rotating disc 1 101, and each group of forming sleeves 2 is provided with a plurality of forming sleeves 2, and each forming sleeve 2 is detachably connected with the mounting slot; a plurality of pressing rods 402 which are circumferentially and equidistantly connected to the rotating disc 2 103 through mounting plates 401, and are used for cooperating with the forming sleeves 2 to press and form tablets, each group of pressing rods 402 is provided with a plurality of pressing rods 402, and each pressing rod 402 is detachably connected with the mounting plate 401, wherein the diameters of the plurality of forming sleeves 2 and the pressing rods 402 are arranged in a decreasing order; a top block 201 which is slidably connected in the forming sleeve 2, and is used for ejecting the formed tablets from the forming sleeve 2; a plurality of fixing seats 601 which are connected to the base 1 in a lifting manner, and are arranged above one of the forming sleeves 2 in a corresponding manner; a plurality of vibration probes 603 which are provided with vibration sensors 602 and are circumferentially and equidistantly arranged on the fixing seats 601; and a vibrator 5 which is fixedly installed in a mounting cavity of the base 1.

[0020] Before use, the vibrator 5 is turned on, the fixing seat 601 is lowered to make the vibration probe 603 inserted into the idle forming sleeve 2, the vibration generated by the vibrator 5 is transmitted to the forming sleeve 2 through the rotating disc 1 101, and the vibration sensor 602 detects and records the vibration frequency of the unused forming sleeve 2; then the rotating disc 1 101 and the rotating disc 2 103 are synchronously rotated to drive the plurality of forming sleeves 2 and the pressing rods 402 to rotate, each rotation of 90° adjusts the next forming sleeve 2 to be below the vibration probe 603, and the above detection and recording steps are repeated to complete the vibration frequency detection of all unused forming sleeves 2 as initial calibration data.

[0021] During processing, first, the material is added into the forming sleeve 2 located at the processing position, after the addition is completed, the pressing rod 402 is lowered to cooperate with the forming sleeve 2 to complete the pressing and forming of the tablets, the top block 201 ejects the tablets, and the worker takes out the tablets; when tablets with different particle sizes need to be produced, the rotating disc 1 101 and the rotating disc 2 103 are synchronously rotated to drive the plurality of forming sleeves 2 and the pressing rods 402 to rotate, each rotation of 90° adjusts a group of forming sleeves 2 and pressing rods 402 to the processing position, until the forming sleeves 2 and the pressing rods 402 with corresponding diameters are rotated to the processing position, and then the above processing steps are repeated after the adjustment is completed; When the material is added into the forming sleeve 2, the vibrator 5 can be started, the fixed seat 601 is lowered to insert the vibration probe 603 into the idle forming sleeve 2, the vibration generated by the vibrator 5 is transmitted to the forming sleeve 2 through the turntable one 101, the vibration sensor 602 detects the current vibration frequency and compares it with the initial record to judge whether the forming sleeve 2 is worn, if there is a difference in vibration frequency, the damaged forming sleeve 2, pressure rod 402 or top block 201 can be positioned in the first time, so that the worker can replace the damaged parts in time, at the same time, the vibration is transmitted to the forming sleeve 2 through the turntable one 101, which can also vibrate the added powder to fill it, avoiding the support force between the powders to cause uneven feeding; Based on the above, the diameters of the multiple forming sleeves 2 and the pressure rods 402 are gradually reduced, and the turntable is rotated to adjust the position, so as to quickly switch multiple specifications of tablets for processing, avoid frequent disassembly and installation when changing the mold, improve the efficiency of changing the mold, and the operation of vibrating the powder to fill it can ensure uniform feeding, avoid uneven feeding of tablets, in addition, the vibration calibration before use and the wear detection during processing are combined to achieve the benefit of real-time monitoring of the state of the equipment parts, prevent the quality of tablets from being reduced due to the wear of parts, avoid mass production of unqualified products, effectively improve the applicability, production continuity and product quality stability of the high-speed tablet press.

[0022] Embodiment 2: refer to Figure 9 , Figure 10 , the high-speed tablet press can realize rapid mold switching of multiple specifications of tablets, which is basically the same as embodiment 1, and further, the guide rod 4 is fixedly connected on the turntable two 103, the mounting plate 401 is slidingly connected on the guide rod 4, the limit block is integrally formed on the lower end of the guide rod 4, the spring 403 is sleeved on the guide rod 4, one end of the spring 403 is fixedly connected with the mounting plate 401, and the other end is fixedly connected with the limit block, the hydraulic telescopic rod 404 is fixedly installed on the base 1, and the hydraulic telescopic rod 404 is located directly above the mounting plate 401; During tablet processing, when the corresponding specification forming sleeve 2 is turned to the processing position and the material is added, the hydraulic telescopic rod 404 is elongated to press down the mounting plate 401, the mounting plate 401 slides down along the guide rod 4 and compresses the spring 403, driving the group of pressure rods 402 to descend synchronously (such as Figure 6As shown, the tablets are pressed and formed in conjunction with the forming sleeve 2. After tableting, the hydraulic telescopic rod 404 retracts, and the spring 403 releases its elastic potential energy to automatically reset the mounting plate 401 and the pressure rod 402, so that the turntable can rotate to switch specifications or perform the next tableting. The guide rod 4 ensures that the mounting plate 401 and the pressure rod 402 rise and fall accurately and smoothly, the spring 403 achieves rapid reset, and the hydraulic telescopic rod 404 provides a stable and controllable tableting force. In conjunction with the multi-specification pressure rod 402 design in Example 1, it is possible to ensure that pressure rods 402 of different diameters can act accurately on the corresponding forming sleeve 2 and that the tableting force is stable and consistent. This avoids uneven tableting of different specifications caused by the lifting and lowering of the pressure rod 402, prevents pressure fluctuations from affecting tablet density, and effectively improves the tableting quality of multi-specification tablets and the stability of equipment operation.

[0023] like Figure 11 As shown, an electric telescopic rod 202 is fixedly installed in the mounting slot, and a top block 201 is threadedly connected to the telescopic end of the electric telescopic rod 202. When the corresponding specification of the forming sleeve 2 and the pressure rod 402 cooperate to complete the tableting, the electric telescopic rod 202 extends and drives the top block 201 to slide upward in the forming sleeve 2, pushing the formed tablet out of the forming sleeve 2. After the tablet is pushed out, the electric telescopic rod 202 retracts and drives the top block 201 to reset, so that the turntable can rotate to switch specifications or perform the next feeding and tableting. When the vibration sensor 602 detects an abnormal vibration frequency in the molding sleeve 2 and the corresponding top block 201 needs to be replaced, the top block 201 is connected to the threaded end of the electric telescopic rod 202. The replacement can be completed by rotating the top block 201. The electric telescopic rod 202 drives the top block 201. In conjunction with the multi-specification molding sleeve 2 design in (Example 1), the purpose of accurately controlling the ejection force and speed of tablets of different specifications is achieved. This avoids excessive ejection force that could cause tablet breakage or untimely ejection that would affect the efficiency of multi-specification switching. It also prevents wear and jamming of the top block 201 that could affect production continuity, effectively improving the safety of tablet ejection and the operational stability of the high-speed tableting equipment.

[0024] Example 3: Reference Figure 6 , Figure 8 This is a high-speed tablet press that can quickly change the mold of tablets of various specifications. It is basically the same as in Example 1. Furthermore, a feeding frame 3 is slidably connected on the base 1, and cylinders 301 are symmetrically fixed on the base 1. The cylinders 301 are fixedly connected to the side wall of the feeding frame 3. A pushing groove 302 is preset at one end of the feeding frame 3. A dropping groove 203 is preset on the turntable 101. A collection groove 204 corresponding to the dropping groove 203 is opened on the base 1. One side of the lower end face of the collection groove 204 is inclined downward. In the tablet processing process, the powder is poured into the feeding frame 3 during processing, the cylinder 301 drives the feeding frame 3 to slide along the base 1, and the tablets ejected by the top block 201 fall into the discharge chute 203 under the pushing of the pushing chute 302 located in front of the feeding frame 3, and further enter the collection chute 204 of the base 1, and slide down along the inclined collection chute 204 to the collection container (such as Figure 4 shown); Then the top block 201 is lowered and reset, the powder in the feeding frame 3 falls into the forming sleeve 2, and the uniform feeding is realized by cooperating with the vibration filling operation during feeding in Example 1, wherein the cylinder 301 drives the feeding frame 3 to sequentially complete tablet collection and powder feeding, so as to achieve the purpose of connecting the tablet collection and material adding processes, avoid the device jam caused by the conflict between the collection and feeding actions, and effectively improve the production continuity and tablet processing quality stability of the high-speed tablet press.

[0025] Example 4: Refer to Figure 6 , a high-speed tablet press capable of quickly changing the mold of multiple specifications can be realized, which is basically the same as Example 1, and further, the base 1 is rotatably connected with a rotating shaft 102 and a rotating shaft 104, the rotating shaft 102 is fixedly connected with the rotating disc 101, the rotating shaft 104 is fixedly connected with the rotating disc 103, the rotating shaft 102 and the rotating shaft 104 are both fixedly installed with pulleys, the two pulleys are connected through a belt 106, and a motor 105 is fixedly installed in the cavity of the base 1, and the rotating shaft 104 is fixedly connected with the output end of the motor 105; Start the motor 105, the output end of the motor 105 drives the rotating shaft 104 and the rotating disc 103 to rotate, the pulley on the rotating shaft 104 drives the pulley on the rotating shaft 102 to rotate through the belt 106, and then the rotating shaft 102 and the rotating disc 101 rotate synchronously, this way of driving the double rotating discs to rotate synchronously through the pulley belt 106 of the motor 105 achieves the purpose of simplifying the driving structure, avoids the speed difference caused by the double motors 105 driving, improves the coordination of the rotating disc rotation, and effectively improves the stability of the tablet processing process.

[0026] Example 5: Refer to Figure 6 , Figure 7 , a high-speed tablet press capable of quickly changing the mold of multiple specifications can be realized, which is basically the same as Example 1, and further, the base 1 is fixedly installed with an electric telescopic rod three 605, the telescopic end of the electric telescopic rod three 605 is fixedly connected with a base plate 6, the fixed seat 601 is integrally formed with the base plate 6, the fixed seat 601 is fixedly installed with an electric telescopic rod two 604, and a vibration sensor 602 is fixedly installed on the telescopic end of the electric telescopic rod two 604 through a connecting seat; In the wear detection process in the pre-calibration and processing of (Embodiment 1), when the vibration frequency detection is performed, the electric telescopic rod three 605 is elongated to lower the base plate 6 and the fixed seat 601, until the fixed seat 601 drives the vibration probe 603 to be inserted into the corresponding forming sleeve 2, and then the electric telescopic rod two 604 is elongated to push the vibration probe 603 to be close to the inner wall of the forming sleeve 2 (as shown in Figure 12 It should be noted that the electric telescopic rod two 604 can adjust the vibration probe 603 to keep the same distance from the inner wall of the forming sleeve 2 according to the diameter of the forming sleeve 2 of different specifications, so that the vibration probe 603 can better detect the vibration frequency of the forming sleeve 2 of different specifications. Then the vibrator 5 works to generate vibration, which is transmitted to the forming sleeve 2 through the turntable one 101, the vibration sensor 602 receives the vibration signal and transmits it to the control system, and compares it with the initial calibration data to judge whether the forming sleeve 2 is worn. After the detection is completed, the electric telescopic rod two 604 is retracted to drive the vibration probe 603 to reset, and the electric telescopic rod three 605 is retracted to drive the fixed seat 601 to reset, without affecting the rotation of the turntable to switch the specifications; The electric telescopic rod three 605 is used to realize the lifting adjustment of the fixed seat 601, to ensure that the vibration probe 603 is accurately inserted into the forming sleeve 2 of different specifications, and the electric telescopic rod two 604 adjusts the distance between the probe and the inner wall according to the diameter of the forming sleeve 2, to achieve the purpose of ensuring that the contact conditions of vibration detection of the forming sleeve 2 of different specifications are consistent and the signal collection is stable, avoiding poor contact or collision damage of the probe due to specification differences, preventing detection data deviation from affecting the wear judgment accuracy, and effectively improving the accuracy of vibration detection. It should be noted that the diameter of the fixed seat 601 matches the diameter of the smallest specification forming sleeve 2.

[0027] Embodiment 6: Refer to Figure 7 , Figure 12 , a high-speed tablet press can realize rapid mold switching of tablets of different specifications, which is basically the same as Embodiment 1, and further, a negative pressure cavity 701 is formed in the base plate 6, a pipeline 702 is arranged on the base plate 6, one end of the pipeline 702 is in communication with the negative pressure cavity 701, and the other end is used for external connection of a dust suction pump, and a suction cavity 7 in communication with the negative pressure cavity 701 is formed in the fixed seat 601; In the vibration detection process, the vibration generated by the vibrator 5 is transmitted to the forming sleeve 2 through the turntable 101, which can strip the powder remaining on the top block 201 and the inner wall of the forming sleeve 2, and at the same time, the external suction pump draws negative pressure in the negative pressure cavity 701 through the pipeline 702, so that the suction cavity 7 on the fixed seat 601 generates suction force, thereby cleaning the stripped powder, so as to achieve the purpose of stripping the residual powder first and then cleaning efficiently, avoid the influence of the residual powder on the top block 201 and the inner wall of the forming sleeve 2 on the detection accuracy of the vibration probe 603 to the vibration frequency of the forming sleeve 2, prevent the residual powder from causing material ratio deviation during subsequent tablet processing or wear of the forming sleeve 2, and effectively improve the accuracy of vibration detection and the processing quality stability of the high-speed tabletting equipment.

[0028] As shown in Figure 12 , the outer wall of the fixed seat 601 is embedded with an air bag 703, the air bag 703 is arranged in a ring shape, the air bag 703 is provided with a gas conveying pipe 704, and the lower end surface of the fixed seat 601 is circumferentially provided with a plurality of air jet pipes 706, the air bag 703 is connected with the air jet pipe 706 through a gas conveying cavity 705, and the diameter of the gas conveying pipe 704 is greater than the diameter of the gas conveying cavity 705. In the above vibration stripping powder and negative pressure cleaning process, when the suction cavity 7 cleans the stripped powder, the ring-shaped air bag 703 on the outer wall of the fixed seat 601 can be inflated synchronously or on demand through the gas conveying pipe 704, because the diameter of the gas conveying pipe 704 is greater than the diameter of the gas conveying cavity 705, when the gas in the air bag 703 is jetted out from the air jet pipe 706 through the gas conveying cavity 705, a gas flow with a certain pressure is formed, which can lift the stripped powder, so that the suction cavity 7 can better clean it. At the same time, the diameter of the gas conveying pipe 704 is greater than the diameter of the gas conveying cavity 705, so that when the air bag 703 is inflated, the air bag 703 can gradually expand and be attached to the inner wall of the upper end of the forming sleeve 2, preventing the lifted powder from drifting outward, wherein, the mutual cooperation of the air jet through the air jet pipe 706 and the negative pressure suction achieves the purpose of lifting, gathering, and cleaning the residual powder in the forming sleeve 2, avoids the difficulty of being cleaned or the pollution of the environment caused by the lifted powder, prevents the residual powder from affecting the subsequent vibration detection accuracy or tablet processing quality, effectively improves the cleanliness and cleaning efficiency of the forming sleeve 2, and further guarantees the accuracy of vibration detection and the processing stability of the high-speed tabletting equipment.

[0029] It should be noted that the pipeline 702 and the gas conveying pipe 704 are both flexible pipes, and the pipeline 702 and the gas conveying pipe 704 are both provided with a one-way valve.

[0030] Embodiment 7: refer to Figure 9 , Figure 11The high-speed tablet press can realize rapid die changing of multi-specification tablets, and is basically the same as that in Embodiment 1. Further, the forming sleeve 2 is threadedly connected with the mounting groove, and the pressing rod 402 is detachably connected with the mounting plate 401 through the fixing bolt. During processing and detection, when the vibration sensor 602 detects that the forming sleeve 2 needs to be replaced due to abnormal vibration frequency or needs to be added with other specification forming sleeve 2, the forming sleeve 2 is directly rotated to complete the disassembly or assembly through the threaded connection between the forming sleeve 2 and the mounting groove. When the corresponding pressing rod 402 needs to be replaced, the fixing bolt is unscrewed to remove the pressing rod 402 from the mounting plate 401 and replace it with a new pressing rod 402. The disassembly structure of the thread and the bolt, in combination with the multi-specification design and the rotating disc positioning function in (Embodiment 1), achieves the purpose of simplifying the replacement of worn parts and conveniently supplementing new specifications, avoids the long time-consuming caused by complex disassembly process, improves the efficiency of die changing and equipment maintenance of multi-specification tablets, and further guarantees the production continuity and flexibility of the high-speed tablet press.

[0031] Embodiment 8: A die changing method of a high-speed tablet press, comprising the following operation steps: Step one: start the electric telescopic rod three 605, which is elongated to lower the base plate 6 and the fixed seat 601, so that the vibration probe 603 on the fixed seat 601 is inserted into the current idle forming sleeve 2; Start the electric telescopic rod two 604 to adjust the distance between the vibration probe 603 and the inner wall of the forming sleeve 2 according to the diameter of the forming sleeve 2, so that they remain consistent; Start the vibrator 5, and the vibration is transmitted to the forming sleeve 2 through the rotating disc one 101. The vibration sensor 602 detects and records the vibration frequency of the forming sleeve 2 as initial calibration data; Control the electric telescopic rod two 604 to retract the vibration probe 603 to reset, and control the electric telescopic rod three 605 to retract the fixed seat 601 to reset; Step two: drive the double rotating discs to rotate synchronously, and repeat step one to detect the next forming sleeve 2 every 90°. After all the calibrations are completed, continue to rotate the rotating disc to the processing position and stop, so that the tablet can be processed; Step three: during processing, repeat the vibration detection operation of step one, compare the detected current vibration frequency with the initial calibration data, and locate the damaged forming sleeve 2, pressing rod 402 or top block 201 if there is a difference; For the forming sleeve 2, the disassembly is completed by rotating the threaded connection between the forming sleeve 2 and the mounting groove. After replacing the new forming sleeve 2, it is rotated in the reverse direction and tightened; For the pressing rod 402, the fixing bolt is unscrewed to remove it from the mounting plate 401. After replacing the new pressing rod 402, the fixing bolt is tightened again. After the replacement is completed, repeat the detection and calibration of step one. After confirming that the part is in normal state, the processing can continue; Step four: when different sizes of tablets need to be produced, the double rotary table rotates synchronously to drive the multiple sets of forming sleeve 2 and the pressing rod 402 to rotate, and each 90° rotation can adjust one set of forming sleeve 2 and the pressing rod 402 to the processing position, until the forming sleeve 2 and the pressing rod 402 corresponding to the diameter are rotated to the processing position, and then the tablet processing can be continued.

[0032] The above only is the preferred embodiment of the present application, and does not limit the present application in any form, although the present application has been disclosed as above with the preferred embodiment, however, is not used to limit the present application.

Claims

1. A high speed tablet press capable of quick die change for multi-specification tablets, characterized in that, The base (1) and the rotating disc one (101) and the rotating disc two (103) are rotatably connected to the base (1); A plurality of groups of forming sleeves (2) are circumferentially and equidistantly arranged in the mounting groove of the rotating disc one (101), and each group of forming sleeves (2) is provided with a plurality of forming sleeves (2), and each forming sleeve (2) is detachably connected with the mounting groove; A plurality of groups of pressing rods (402) are circumferentially and equidistantly connected to the rotating disc two (103) through the mounting plate (401) for cooperating with the forming sleeve (2) to press and form the tablets, each group of pressing rods (402) is provided with a plurality of pressing rods (402), and each pressing rod (402) is detachably connected with the mounting plate (401), wherein the diameters of the plurality of groups of forming sleeves (2) and the pressing rods (402) are arranged in a decreasing manner; A top block (201) is slidably connected in the forming sleeve (2) for ejecting the formed tablets from the forming sleeve (2); A plurality of fixing seats (601) are connected to the base (1) in a lifting manner and are correspondingly arranged above one group of forming sleeves (2); A plurality of vibration probes (603) with vibration sensors (602) are circumferentially and equidistantly arranged on the fixing seat (601); A vibrator (5) is fixedly installed in the mounting cavity of the base (1).

2. The high speed tablet press capable of quick die change for multi-specification tablets according to claim 1, characterized in that, The forming sleeve (2) is threadedly connected with the mounting groove, and the pressing rod (402) is detachably connected with the mounting plate (401) through a fixing bolt.

3. The high speed tablet press capable of quick die change for multi-specification tablets according to claim 1, characterized in that, The rotating disc two (103) is symmetrically and fixedly connected with a guide rod (4), the mounting plate (401) is slidably connected with the guide rod (4), the lower end of the guide rod (4) is integrally formed with a limiting block, a spring (403) is sleeved on the guide rod (4), one end of the spring (403) is fixedly connected with the mounting plate (401), and the other end is fixedly connected with the limiting block, and a hydraulic telescopic rod (404) is fixedly installed on the base (1) and located above the mounting plate (401).

4. The high speed tablet press capable of quick die change for multi-specification tablets according to claim 1, characterized in that, An electric telescopic rod one (202) is fixedly installed in the mounting groove, and the top block (201) is threadedly connected with the telescopic end of the electric telescopic rod one (202).

5. The high speed tablet press capable of quick die change for multi-specification tablets according to claim 1, characterized in that, A feeding frame (3) is slidably connected to the base (1), air cylinders (301) are symmetrically and fixedly installed on the base (1) and fixedly connected with the side wall of the feeding frame (3), one end of the feeding frame (3) is provided with a pushing groove (302), a feeding groove (203) is provided on the rotating disc one (101), a collecting groove (204) corresponding to the feeding groove (203) is formed in the base (1), and one side of the lower end surface of the collecting groove (204) is arranged in an inclined downward manner.

6. The high speed tablet press capable of quick die change for multi-specification tablets according to claim 1, characterized in that, A rotating shaft (102) and a rotating shaft (104) are rotatably connected to the base (1), the rotating shaft (102) is fixedly connected with the rotating disc one (101), the rotating shaft (104) is fixedly connected with the rotating disc two (103), the rotating shaft (102) and the rotating shaft (104) are both fixedly installed with pulleys, the two pulleys are connected through a belt (106), a motor (105) is fixedly installed in the cavity of the base (1), and the rotating shaft (104) is fixedly connected with the output end of the motor (105).

7. The high speed tablet press capable of quick die change for multi-specification tablets according to claim 1, characterized in that, The base (1) is fixedly provided with an electric telescopic rod three (605), and the telescopic end of the electric telescopic rod three (605) is fixedly connected with a base plate (6); the fixed seat (601) is integrally formed with the base plate (6), and the fixed seat (601) is fixedly provided with an electric telescopic rod two (604); and the vibration sensor (602) is fixedly provided on the telescopic end of the electric telescopic rod two (604) through a connecting seat.

8. The high speed tablet press capable of quick die change for multi-specification tablets according to claim 1, characterized in that, The base plate (6) is provided with a negative pressure cavity (701), and the base plate (6) is provided with a pipeline (702) in communication with the negative pressure cavity (701) at one end and externally connected with a dust suction pump at the other end; and the fixed seat (601) is provided with a suction cavity (7) in communication with the negative pressure cavity (701).

9. The high speed tablet press capable of quick die change for multi-specification tablets according to claim 9, characterized in that, The fixed seat (601) is provided with an air bag (703) embedded on the outer wall thereof, and the air bag (703) is annularly arranged; the air bag (703) is provided with a gas conveying pipe (704); and the lower end surface of the fixed seat (601) is provided with a plurality of air jet pipes (706) equidistantly arranged in a circle; the air bag (703) is in communication with the air jet pipes (706) through a gas conveying cavity (705), and the diameter of the gas conveying pipe (704) is greater than that of the gas conveying cavity (705).

10. The method for changing the die of a high-speed tablet press, using the high-speed tablet press capable of quickly changing the die for tablets of different specifications according to claim 1, characterized in that, The method comprises the following operation steps: Step one: the fixed seat (601) is lowered, so that the vibration probe (603) is inserted into the idle forming sleeve (2), the vibrator (5) is turned on to detect and record the vibration frequency as initial data; then the fixed seat (601) is moved upward to reset; Step two: the double turntable is driven to rotate synchronously, and step one is repeated to detect the next forming sleeve (2) every 90°; after all the calibrations are completed, the turntable is continuously rotated to move the required specification forming sleeve (2) and pressure rod (402) to the processing position and stop, so that the tablets can be processed; Step three: step one is repeated during processing to detect the current and initial vibration frequencies, locate the damaged parts, and then replace the forming sleeve (2), pressure rod (402) and top block (201); after replacement, the calibration is re-detected, and the processing can be continued when the calibration is normal; Step four: when tablets of different particle sizes need to be produced, the double turntable is synchronously rotated to drive the plurality of forming sleeves (2) and pressure rods (402) to rotate; one group of forming sleeve (2) and pressure rod (402) can be adjusted to the processing position every 90° of rotation, until the forming sleeve (2) and pressure rod (402) corresponding to the diameter are moved to the processing position, and then the tablets can be continuously processed.

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