A tablet press for traditional Chinese medicine decoction pieces

Abstract

The utility model relates to traditional chinese medicine decoction pieces technical field, especially a kind of tablet press for traditional chinese medicine decoction pieces, including rack, still including setting on the tablet press die of rack, the lower punch guide hole being opened in the tablet press die, the lower tablet punch being reciprocatingly slidably set in the lower punch guide hole along Z axis direction, the lower punch driving assembly for driving the lower tablet punch sliding, punch top seat being set in the tablet press die upper, the upper punch guide hole being set in the punch top seat, the upper tablet punch being reciprocatingly slidably set in the upper punch guide hole along Z axis direction, the upper punch driving assembly for driving the upper tablet punch sliding;The utility model lower punch coaxial and same aperture setting, can ensure that pressure is evenly distributed when pressing tablet, avoid traditional chinese medicine tablet eccentric cracking, can adapt to the tablet forming of different hardness and viscosity of traditional chinese medicinal materials, applicable to different production needs.

Description

Technical fields:

[0001] This utility model relates to the field of traditional Chinese medicine decoction pieces technology, and in particular to a tablet compressor for traditional Chinese medicine decoction pieces. Background technology:

[0002] Traditional Chinese medicine (TCM) decoction pieces are TCM herbs that have been processed according to TCM theory and processing methods, and can be directly used in TCM clinical practice. The preparation of TCM decoction pieces requires the use of a tablet press. Tablet presses are mainly used in pharmaceutical industry tablet manufacturing processes. They compress granular materials into tablets. Traditional tablet presses typically use a single punch to apply pressure in one direction. However, this structure is prone to uneven pressure on one side during compression. For example, with fibrous TCM herbs (such as Astragalus membranaceus and Glycyrrhiza uralensis), uneven pressure transmission leads to a large density gradient in the tablets, resulting in a dense top layer and a loose bottom layer. Therefore, there is an urgent need for a tablet press with better compression performance. Utility model content:

[0003] The purpose of this invention is to provide a tableting machine for Chinese herbal medicine slices that addresses the shortcomings of existing technologies, ensuring uniform distribution of compression pressure and preventing eccentric cracking of Chinese herbal medicine tablets.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a tableting machine for traditional Chinese medicine decoction pieces, including a frame, a tableting mold disposed on the frame, a lower punch guide hole opened in the tableting mold, a lower tableting punch reciprocatingly slidable in the lower punch guide hole along the Z-axis direction, a lower punch driving assembly for driving the lower tableting punch to slide, a punch top seat disposed above the tableting mold, an upper punch guide hole disposed in the punch top seat, an upper tableting punch reciprocatingly slidable in the upper punch guide hole along the Z-axis direction, and an upper punch driving assembly for driving the upper tableting punch to slide. The lower tableting punch and the upper tableting punch have the same diameter and are coaxially disposed. The top of the lower tableting punch and the inner cavity of the lower punch guide hole form a tableting cavity. The power output end of the lower punch driving assembly drives and connects to the lower tableting punch, and the power output end of the upper punch driving assembly drives and connects to the upper tableting punch.

[0005] A further improvement to the above solution is that the upper punch drive assembly includes an upper punch drive shaft rotatably mounted on the top of the frame, a rotary drive motor for driving the upper punch drive shaft to rotate, and an upper punch cam fixedly mounted on the upper punch drive shaft. The rotary drive motor is fixedly mounted on the frame and drives the upper punch drive shaft. The top of the upper pressing punch is provided with an upper cam contact wheel fixing seat, and an upper cam contact wheel is rotatably connected to the upper cam contact wheel fixing seat. The upper cam contact wheel is drivenly connected to the upper punch cam. The rotary drive motor drives the upper punch cam to rotate along the upper punch drive shaft, thereby driving the upper pressing punch to reciprocate along the Z-axis direction.

[0006] A further improvement to the above solution is that a reduction mechanism is provided on the frame, and the rotary drive motor is driven and connected to the upper punch drive shaft through the reduction mechanism. The reduction mechanism includes a first reduction shaft rotatably mounted on the frame along the Y-axis, a first reduction bevel gear fixedly mounted on one end of the first reduction shaft, a first reduction gear fixedly mounted on the other end of the first reduction shaft, a second reduction shaft rotatably mounted on the frame along the Y-axis, a second reduction bevel gear fixedly mounted on the second reduction shaft, and a second reduction gear fixedly mounted on the second reduction shaft. The power output end of the rotary drive motor is provided with a drive bevel gear, which meshes with the first reduction bevel gear. The first reduction gear meshes with the second reduction gear. A drive shaft bevel gear is fixedly mounted on the upper punch drive shaft, and the second reduction bevel gear meshes with the drive shaft bevel gear.

[0007] A further improvement to the above solution is that the lower punch drive assembly includes a lower punch drive shaft rotatably disposed at the bottom of the frame and a lower punch cam fixedly disposed on the lower punch drive shaft. The upper punch drive shaft is drive-connected to the lower punch drive shaft. A lower cam contact wheel fixing seat is disposed at the bottom of the lower pressing punch. A lower cam contact wheel is rotatably connected to the lower cam contact wheel fixing seat. The lower cam contact wheel is drive-connected to the lower punch cam.

[0008] A further improvement to the above solution is that an upper punch drive wheel is fixedly mounted on the upper punch drive shaft, and a lower punch drive wheel is fixedly mounted on the lower punch drive shaft. The upper punch drive wheel and the lower punch drive wheel are connected by a belt drive.

[0009] A further improvement to the above solution is that it also includes a feeding assembly, which includes a hopper disposed on the frame, a feeding pipe fixedly disposed on the punch top seat, a feeding component slidably disposed between the tableting mold and the punch top seat along the X-axis direction, and a feeding component driving mechanism for driving the feeding component to slide. The outlet of the hopper is connected to the inlet of the feeding pipe, and a feeding channel is disposed through the feeding component along the Z-axis direction. The inlet of the feeding channel is connected to the outlet of the feeding pipe, and the power output end of the feeding component driving mechanism drives the feeding component.

[0010] A further improvement to the above solution is that the upper end face of the tableting mold is recessed with a material feeding limiting groove.

[0011] A further improvement to the above solution is that the unloading drive mechanism includes a cam rotation fixing frame mounted on the frame, a vibrating screening cam rotatably mounted on the cam rotation fixing frame, and an unloading push rod slidably mounted above the vibrating screening cam along the X-axis. The lower punch drive assembly is driven by the vibrating screening cam. A push rod drive groove is provided on the outer side wall of the vibrating screening cam. A drive rod is provided on the top of one side of the unloading push rod. The drive rod is inserted into the push rod drive groove. One end of the unloading push rod is fixedly connected to the unloading part, and the other end of the unloading push rod is driven by the vibrating screening cam through the drive rod and the push rod drive groove.

[0012] The advantages of this utility model are as follows: This utility model includes a frame, a tableting mold mounted on the frame, a lower punch guide hole opened in the tableting mold, a lower tableting punch reciprocatingly sliding in the lower punch guide hole along the Z-axis direction, a lower punch driving assembly for driving the lower tableting punch to slide, a punch top seat mounted above the tableting mold, an upper punch guide hole mounted in the punch top seat, an upper tableting punch reciprocatingly sliding in the upper punch guide hole along the Z-axis direction, and an upper punch driving assembly for driving the upper tableting punch to slide. The lower tableting punch and the upper tableting punch have the same hole diameter and are coaxially arranged. The top of the lower tableting punch and the inner cavity of the lower punch guide hole form a tableting forming cavity. The power output end of the lower punch driving assembly drives and connects to the lower tableting punch, and the power output end of the upper punch driving assembly drives and connects to the upper tableting punch.

[0013] This invention features coaxial upper and lower punches with the same aperture, ensuring uniform pressure distribution during tableting and preventing eccentric cracking of Chinese medicine tablets. It can adapt to tableting of Chinese medicinal materials with different hardness and viscosity, making it suitable for various production needs. The tableting cavity is directly formed by the lower tableting punch and the inner cavity of the lower punch guide hole, reducing the amount of Chinese medicinal material residue in the cavity after tableting and ensuring consistent density with each press. At the same time, the upper and lower tableting punches are independently controlled in terms of punch stroke, enabling flexible production of tablets with different thicknesses. The tablet thickness can be adjusted according to specific needs, making it convenient to use. Attached image description:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the upper punch drive assembly of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the lower punch drive assembly of this utility model.

[0018] Figure 5 This is a schematic diagram of the deceleration mechanism of this utility model.

[0019] Figure 6 This is a schematic diagram of the material feeding assembly of this utility model.

[0020] Figure 7 This is a schematic diagram of the structure of the vibration screening cam of this utility model.

[0021] Figure 8 This is a schematic diagram of the material feeding component of this utility model.

[0022] Explanation of reference numerals in the attached drawings: Frame 1, tableting mold 2, lower punch guide hole 21, lower tableting punch 211, lower punch drive assembly 22, lower punch drive shaft 221, lower punch transmission wheel 2211, lower punch cam 222, lower cam contact wheel fixing seat 223, lower cam contact wheel 224, material feeding limiting groove 23, punch top seat 3, upper punch guide hole 31, upper tableting punch 311, upper punch drive assembly 32, upper punch drive shaft 321, drive shaft bevel gear 3211, upper punch transmission wheel 3212, rotation drive motor 322, drive bevel gear 3221, upper punch Cam 323, upper cam contact wheel fixing seat 324, upper cam contact wheel 325, tablet forming cavity 4, reduction mechanism 5, first reduction shaft 51, first reduction bevel gear 52, first reduction gear 53, second reduction shaft 54, second reduction bevel gear 55, second reduction gear 56, feeding assembly 6, hopper 61, feeding pipe 62, tablet collecting groove 63, feeding component 64, feeding channel 641, feeding component driving mechanism 65, cam rotation fixing frame 651, vibrating screening cam 652, push rod driving groove 6521, feeding component push rod 653, driving rod 6531. Detailed implementation method:

[0023] The present invention will be further described below with reference to the accompanying drawings, such as... Figure 1-8 As shown, this utility model provides a tableting machine for traditional Chinese medicine decoction pieces, including a frame 1, a tableting mold 2 disposed on the frame 1, a lower punch guide hole 21 opened in the tableting mold 2, a lower tableting punch 211 reciprocatingly disposed in the lower punch guide hole 21 along the Z-axis direction, a lower punch driving assembly 22 for driving the lower tableting punch 211 to slide, a punch top seat 3 disposed above the tableting mold 2, an upper punch guide hole 31 disposed in the punch top seat 3, an upper tableting punch 311 reciprocatingly disposed in the upper punch guide hole 31 along the Z-axis direction, and an upper punch driving assembly 32 for driving the upper tableting punch 311 to slide. The lower tableting punch 211 and the upper tableting punch 311 have the same diameter and are coaxially disposed. The top of the lower tableting punch 211 is formed with the inner cavity of the lower punch guide hole 21. The tablet has a compression forming cavity 4. The power output end of the lower punch drive assembly 22 drives and connects to the lower tableting punch 211, and the power output end of the upper punch drive assembly 32 drives and connects to the upper tableting punch 311. The upper and lower punches are coaxial and have the same hole diameter, which can ensure uniform pressure distribution during tableting, avoid eccentric cracking of Chinese medicine tablets, and adapt to the tableting of Chinese medicinal materials with different hardness and viscosity, suitable for different production needs. The tablet forming cavity 4 is directly formed by the lower tableting punch 211 and the inner cavity of the lower punch guide hole 21, which can reduce the residue of Chinese medicinal materials in the forming cavity after tableting and ensure the consistency of density for each press. At the same time, the upper tableting punch 311 and the lower tableting punch 211 are independently controlled by the punch stroke, which can adapt to the flexible production of tablets with different thicknesses. The tablet thickness can be adjusted according to specific needs, making it easy to use.

[0024] The upper punch drive assembly 32 of this utility model includes an upper punch drive shaft 321 rotatably mounted on the top of the frame 1, a rotation drive motor 322 for driving the upper punch drive shaft 321 to rotate, and an upper punch cam 323 fixedly mounted on the upper punch drive shaft 321. The rotation drive motor 322 is fixedly mounted on the frame 1 and drives the upper punch drive shaft 321. The top of the upper pressing punch 311 is provided with an upper cam contact wheel fixing seat 324, and an upper cam contact wheel fixing seat 324 is rotatably connected to the upper cam contact wheel fixing seat 324. The upper cam contact wheel 325 is connected to the upper punch cam 323 via a transmission. The rotation drive motor 322 drives the upper punch cam 323 to rotate along the upper punch drive shaft 321, thereby driving the upper tableting punch 311 to reciprocate along the Z-axis. The transmission between the upper punch cam 323 and the upper cam contact wheel 325 realizes the precise reciprocating motion of the upper tableting punch 311. Compared with traditional cylinders and hydraulic systems, it is easier to control the stroke. The rotation contact can also reduce friction loss, prevent excessive impact force during tableting and damage to the structure, and extend the service life of the equipment.

[0025] The frame 1 of this utility model is provided with a reduction mechanism 5. The rotation drive motor 322 is connected to the upper punch drive shaft 321 through the reduction mechanism 5. The reduction mechanism 5 includes a first reduction shaft 51 rotatably mounted on the frame 1 along the Y-axis, a first reduction bevel gear 52 fixedly mounted on one end of the first reduction shaft 51, a first reduction gear 53 fixedly mounted on the other end of the first reduction shaft 51, a second reduction shaft 54 ​​rotatably mounted on the frame 1 along the Y-axis, a second reduction bevel gear 55 fixedly mounted on the second reduction shaft 54, and a second reduction gear fixedly mounted on the second reduction shaft 54. The drive bevel gear 3221 is provided at the power output end of the rotating drive motor 322. The drive bevel gear 3221 meshes with the first reduction bevel gear 52, and the first reduction gear 53 meshes with the second reduction gear 56. The drive shaft bevel gear 3211 is fixedly provided on the upper punch drive shaft 321, and the second reduction bevel gear 55 meshes with the drive shaft bevel gear 3211. The reduction mechanism 5 drives the rotating drive motor 322 and the upper punch drive shaft 321. Through the cooperation of the two-stage bevel gears, high torque and smooth transmission are achieved, which is suitable for the high resistance working conditions of traditional Chinese medicine tableting.

[0026] The lower punch drive assembly 22 of this utility model includes a lower punch drive shaft 221 rotatably mounted on the bottom of the frame 1, a lower punch cam 222 fixedly mounted on the lower punch drive shaft 221, an upper punch drive shaft 321 being drivenly connected to the lower punch drive shaft 221, a lower cam contact wheel 224 fixing seat 223 being provided at the bottom of the lower pressing punch 211, a lower cam contact wheel 224 being rotatably connected to the lower cam contact wheel 224 fixing seat 223, and a lower cam contact wheel 224 being drivenly connected to the lower punch cam 222. The upper punch cam 323 and the lower punch cam 222 are linked through the drive shaft, which can achieve forced synchronous movement, eliminate the driving timing error of the upper and lower pressing punches 211, and eliminate the need to set multiple power sources. The lower punch drive assembly 22 and the upper drive assembly share the same power source, which can effectively reduce the complexity and cost of the equipment.

[0027] The present invention has an upper punch drive wheel 3212 fixedly mounted on the upper punch drive shaft 321 and a lower punch drive wheel 2211 fixedly mounted on the lower punch drive shaft 221. The upper punch drive wheel 3212 and the lower punch drive wheel 2211 are connected by belt drive. The belt drive buffers vibration and impact, protects the gear system, and allows for small shaft spacing errors, reducing assembly accuracy requirements.

[0028] This utility model also includes a feeding assembly 6, which includes a hopper 61 mounted on the frame 1, a feeding pipe 62 fixedly mounted on the punch top seat 3, a feeding component 64 slidably mounted between the tableting mold 2 and the punch top seat 3 along the X-axis, and a feeding component driving mechanism 65 for driving the feeding component 64 to slide. The outlet of the hopper 61 is connected to the inlet of the feeding pipe 62. A feeding channel 641 is provided through the feeding component 64 along the Z-axis. The inlet of the feeding channel 641 is connected to the outlet of the feeding pipe 62. The power output end of the feeding component driving mechanism 65 drives the feeding component 64. The amount of Chinese medicine material for a single tableting process enters the feeding channel 641 in the feeding component 64 through the feeding pipe 62 via the hopper 61. The feeding driving mechanism pushes the feeding component 64 to push the material to be tableted into the tableting cavity 4 for tableting, thus precisely controlling the filling amount of Chinese medicine powder.

[0029] The upper end face of the tablet pressing mold 2 of this utility model is provided with a feeding part limiting groove 23 to prevent the feeding part 64 from deviating and causing powder leakage or jamming, thereby improving the feeding repeatability accuracy.

[0030] The feeding component drive mechanism 65 of this utility model includes a cam rotation fixing frame 651 mounted on the frame 1, a vibrating screening cam 652 rotatably mounted on the cam rotation fixing frame 651, and a feeding component push rod 653 slidably mounted above the vibrating screening cam 652 along the X-axis. The lower punch drive assembly 22 is connected to the vibrating screening cam 652 for drive. A push rod drive groove 6521 is provided on the outer side wall of the vibrating screening cam 652. A drive rod 6531 is provided on the top of one side of the feeding component push rod 653 and is inserted into the push rod drive groove 6521. One end of the 3 is fixedly connected to the feeding component 64, and the other end of the feeding component push rod 653 is connected to the vibrating screening cam 652 through the drive rod 6531 and the push rod drive groove 6521. The push rod drive groove 6521 on the vibrating screen cooperates with the drive rod 6531 to control the stroke of the feeding component push rod 653. It shares the same power source with the tableting drive and synchronizes the tableting rhythm. The push rod drive groove 6521 can be set with a wave-shaped channel to control the vibration of the feeding component 64, shake off the Chinese medicine materials that have not completely fallen into the feeding component 64, prevent insufficient material quantity, and ensure the yield rate after tableting.

[0031] Of course, the above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made in accordance with the structure, features and principles of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A tableting machine for traditional Chinese medicine decoction pieces, comprising a frame (1), characterized in that: It also includes a tableting mold (2) mounted on a frame (1), a lower punch guide hole (21) opened in the tableting mold (2), a lower tableting punch (211) reciprocatingly slidably disposed in the lower punch guide hole (21) along the Z-axis direction, a lower punch driving assembly (22) for driving the lower tableting punch (211) to slide, a punch top seat (3) mounted above the tableting mold (2), an upper punch guide hole (31) mounted in the punch top seat (3), and an upper tableting punch reciprocatingly slidably disposed in the upper punch guide hole (31) along the Z-axis direction. The upper punch (311) is a head (311) and an upper punch drive assembly (32) for driving the upper punch (311) to slide. The lower punch (211) has the same diameter as the upper punch (311) and is coaxially arranged. The top of the lower punch (211) and the inner cavity of the lower punch guide hole (21) form a tablet forming cavity (4). The power output end of the lower punch drive assembly (22) is driven and connected to the lower punch (211), and the power output end of the upper punch drive assembly (32) is driven and connected to the upper punch (311).

2. A tablet compressor for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: The upper punch drive assembly (32) includes an upper punch drive shaft (321) rotatably mounted on the top of the frame (1), a rotary drive motor (322) for driving the upper punch drive shaft (321) to rotate, and an upper punch cam (323) fixedly mounted on the upper punch drive shaft (321). The rotary drive motor (322) is fixedly mounted on the frame (1) and drives the upper punch drive shaft (321). The top of the upper pressing punch (311) is provided with an upper cam contact wheel fixing seat (324), and an upper cam contact wheel (325) is rotatably connected to the upper cam contact wheel fixing seat (324). The upper cam contact wheel (325) is connected to the upper punch cam (323) in a transmission connection. The rotation drive motor (322) drives the upper punch cam (323) to rotate along the upper punch drive shaft (321), thereby driving the upper pressing punch (311) to reciprocate along the Z-axis direction.

3. A tablet compressor for traditional Chinese medicine decoction pieces according to claim 2, characterized in that: A reduction mechanism (5) is provided on the frame (1). The rotation drive motor (322) is driven and connected to the upper punch drive shaft (321) through the reduction mechanism (5). The reduction mechanism (5) includes a first reduction shaft (51) rotatably mounted on the frame (1) along the Y-axis, a first reduction bevel gear (52) fixedly mounted on one end of the first reduction shaft (51), a first reduction gear (53) fixedly mounted on the other end of the first reduction shaft (51), a second reduction shaft (54) rotatably mounted on the frame (1) along the Y-axis, and a gear fixedly mounted on the second reduction shaft (52). 4) The second reduction bevel gear (55) on the upper punch drive shaft (54) and the second reduction gear (56) fixedly mounted on the second reduction shaft (54) are provided with a drive bevel gear (3221) at the power output end of the rotary drive motor (322). The drive bevel gear (3221) meshes with the first reduction bevel gear (52), the first reduction gear (53) meshes with the second reduction gear (56), and a drive shaft bevel gear (3211) is fixedly mounted on the upper punch drive shaft (321). The second reduction bevel gear (55) meshes with the drive shaft bevel gear (3211).

4. A tableting machine for traditional Chinese medicine decoction pieces according to claim 2, characterized in that: The lower punch drive assembly (22) includes a lower punch drive shaft (221) rotatably disposed at the bottom of the frame (1) and a lower punch cam (222) fixedly disposed on the lower punch drive shaft (221). The upper punch drive shaft (321) is connected to the lower punch drive shaft (221) in a transmission connection. The bottom of the lower pressure punch (211) is provided with a lower cam contact wheel (224) fixing seat (223). The lower cam contact wheel (224) is rotatably connected to the lower cam contact wheel (224) fixing seat (223). The lower cam contact wheel (224) is connected to the lower punch cam (222) in a transmission connection.

5. A tableting machine for traditional Chinese medicine decoction pieces according to claim 4, characterized in that: An upper punch drive wheel (3212) is fixedly mounted on the upper punch drive shaft (321), and a lower punch drive wheel (2211) is fixedly mounted on the lower punch drive shaft (221). The upper punch drive wheel (3212) and the lower punch drive wheel (2211) are connected by belt drive.

6. A tableting machine for traditional Chinese medicine decoction pieces according to claim 1, characterized in that: It also includes a feeding assembly (6), which includes a hopper (61) disposed on the frame (1), a feeding pipe (62) fixedly disposed on the punch top seat (3), a tablet collecting groove (63) disposed on one side of the punch top seat (3), a feeding component (64) slidably disposed between the tablet mold (2) and the punch top seat (3) along the X-axis direction, and a feeding component driving mechanism (65) for driving the feeding component (64) to slide. The outlet of the hopper (61) is connected to the inlet of the feeding pipe (62). A feeding channel (641) is provided through the feeding component (64) along the Z-axis direction. The inlet of the feeding channel (641) is connected to the outlet of the feeding pipe (62). The power output end of the feeding component driving mechanism (65) drives and connects to the feeding component (64).

7. A tableting machine for traditional Chinese medicine decoction pieces according to claim 6, characterized in that: The upper end face of the tablet pressing mold (2) is recessed with a material feeding limiting groove (23).

8. A tableting machine for traditional Chinese medicine decoction pieces according to claim 6, characterized in that: The unloading drive mechanism (65) includes a cam rotation fixing frame (651) mounted on the frame (1), a vibrating screening cam (652) rotatably mounted on the cam rotation fixing frame (651), and an unloading push rod (653) slidably mounted above the vibrating screening cam (652) along the X-axis. The lower punch drive assembly (22) is driven by the vibrating screening cam (652). A push rod is provided on the outer side wall of the vibrating screening cam (652). A drive rod (6521) is provided on the top of one side of the unloading push rod (653). The drive rod (6531) is inserted into the push rod drive groove (6521). One end of the unloading push rod (653) is fixedly connected to the unloading part (64). The other end of the unloading push rod (653) is connected to the vibrating screening cam (652) through the drive rod (6531) and the push rod drive groove (6521).

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