A mold cleaning device for powder tabletting and a cleaning method thereof

Abstract

The application discloses a die set cleaning device for powder tabletting and a cleaning method thereof, relates to the technical field of tabletting die set cleaning, and comprises a cleaning table, a control table and a mechanical arm, the mechanical arm is arranged on the top surface of the cleaning table, the control table is arranged in a split mode with the cleaning table, a square hole is arranged in the top surface of the cleaning table, a die cylinder cleaning part and a die column cleaning part are arranged on the top surface of the cleaning table and close to the square hole, and a support is arranged in the cleaning table. The independent die cylinder cleaning part and the die column cleaning part are arranged to realize double-station synchronous operation structure, the female die cylinder and the male die column can be parallelly and dryly coarsely cleaned, and the production rhythm of an automatic continuous tabletting production line can be adapted. Meanwhile, the negative pressure dust collection structure is matched, powder impurities stripped by brushing can be synchronously adsorbed, and the problem of dust flying in the cleaning process is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of tableting module cleaning technology, specifically to a cleaning device and method for powder tableting modules. Background Technology

[0002] Powder tableting technology is widely used in the production of precision materials such as pharmaceuticals, functional ceramics, and lithium battery powders. The tableting module consists of a mold and a pressure rod. During the material compression process, powder easily adheres to and clumps in the inner hole of the mold cylinder, the outer wall of the mold column, and the gap between the two. If residual powder is not thoroughly removed, it will not only cause cross-contamination between different batches of raw materials, but also lead to forming defects such as insufficient material, delamination, and dimensional deviations in tableting. At the same time, it will aggravate the wear of the precision surfaces of the mold. Therefore, after each batch of tablets is compressed, the entire module must be thoroughly cleaned.

[0003] Currently, the mainstream cleaning methods in the industry are divided into two categories: manual cleaning and simple automated cleaning, both of which have obvious drawbacks: Traditional manual cleaning methods have significant drawbacks. Production personnel manually disassemble modules, scrape off powder with hand brushes, and then repeatedly wipe and rinse with water and ethanol. During the process, the detached dust directly spreads, harming the respiratory health of operators. There are no uniform standards for the intensity and duration of manual cleaning, and stubborn powder can easily remain in deep holes and tiny gaps in the mold cylinder, resulting in inconsistent cleaning cleanliness. Existing simple automatic cleaning equipment lacks adaptability. Current mold cleaning equipment on the market only has a single cleaning station, and the female mold cylinder and male mold column can only be cleaned sequentially in steps, doubling the operation time and reducing cleaning efficiency. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a module cleaning device for powder tableting, comprising a cleaning table, a control console, and a robotic arm. The robotic arm is disposed on the top surface of the cleaning table. The control console and the cleaning table are separately disposed. A square hole is provided on the top surface of the cleaning table. A mold cylinder cleaning part and a mold pillar cleaning part are disposed on the top surface of the cleaning table near the square hole. A support is disposed inside the cleaning table, wherein one end of the support extends into the square hole. A cleaning tank is disposed inside the cleaning table. A lifting assembly is disposed on the support. Two sets of clamping parts are disposed on the lifting assembly. A cleaning part is disposed inside the cleaning tank.

[0005] As a preferred embodiment of the present invention, one end of the robotic arm is provided with a clamping cylinder, the clamping cylinder clamps a female mold cylinder, and a male mold column is inserted into the top of the female mold cylinder.

[0006] As a preferred embodiment of the present invention, the lifting assembly includes two sets of tank chains, linear guide rails, rotary cylinders, and T-shaped frames. The linear guide rails are symmetrically arranged on the surface of the support. A slider is movably arranged on the outer side of the linear guide rails. The rotary cylinder is arranged on the slider. The T-shaped frame is arranged on the slider. One end of each set of tank chains is fixedly arranged on the surface of the support, and the other end is connected to the rotary cylinder and the T-shaped frame respectively.

[0007] As a preferred embodiment of the present invention, the set of clamping parts is disposed on the rotary cylinder. The clamping parts include a placement frame and a pneumatic mold cylinder clamp. The placement frame is disposed at the output end of the rotary cylinder, and the pneumatic mold cylinder clamp is disposed on the placement frame. The placement frame is arranged in an "L" shape, wherein the clamp of the pneumatic mold cylinder clamp is arranged in an "L" shape and is adapted to the female mold cylinder.

[0008] As a preferred embodiment of the present invention, the other set of clamping parts is disposed on the T-shaped frame, and the clamping parts include pneumatic mold clamps. The pneumatic mold clamps are disposed on the top of the T-shaped frame, wherein the clamps of the pneumatic mold clamps are arranged in an "L" shape and are adapted to the male mold column.

[0009] As a preferred embodiment of the present invention, the cleaning unit includes a support frame, a clamping cylinder II, and a cleaning seat. The support frame is disposed inside the cleaning tank, the clamping cylinder II is disposed at the bottom of the support frame and extends horizontally, and the cleaning seat is disposed at the bottom of the support frame and extends horizontally. The cleaning unit is clamped by a set of clamping units.

[0010] As a preferred embodiment of the present invention, the cleaning unit further includes a water outlet pipe, a water inlet pipe, and a docking sleeve, wherein the docking sleeve is clamped to the clamping part, and the water outlet pipe and the water inlet pipe are respectively disposed on the docking sleeve.

[0011] As a preferred embodiment of the present invention, the cleaning unit further includes a cleaning cylinder, a right-angle rinsing head, and a rinsing chamber. The cleaning cylinder is disposed on the cleaning seat, and a rinsing chamber is provided in the middle of the cleaning cylinder. The right-angle rinsing head is disposed at the bottom of the cleaning cylinder, wherein the right-angle rinsing head is connected to the rinsing chamber.

[0012] A cleaning method for a powder tableting module cleaning device includes the following steps: S1. The control console performs a self-test and reset of the robotic arm and lifting components. The robotic arm then grabs the entire module consisting of the female mold cylinder and the male mold column for pressing the tablet. S2, Dual-station synchronous dry rough cleaning: The male mold column entry cleaning section and the female mold cylinder entry cleaning section remove surface powder through brush rotation and negative pressure dust collection. S3. Then, the female mold cylinder and male mold column are transferred to the lifting assembly by the robotic arm. Then, the entire module is transferred to the spray station in the cleaning department by the operation of the lifting assembly. High-pressure liquid is pre-sprayed to remove fine dust. S4. Depending on the properties of the powder, a secondary cleaning with ethanol solution can be performed to remove oily and stubborn powder stains. S5. The lifting assembly lifts the workpiece, and the robot returns the mold cylinder and mold column to their original positions. The module is then left to air dry naturally.

[0013] As a preferred technical solution of the present invention, in S2 and S3, the male mold column is pre-cleaned by high-pressure liquid spraying inside the cleaning cylinder, the water inlet pipe delivers cleaning medium to rinse the female mold cylinder inserted in the docking sleeve, and the waste liquid is collected in the cleaning pool through the water outlet pipe.

[0014] Compared with the prior art, the present invention provides a module cleaning device and cleaning method for powder tableting, which has the following beneficial effects: 1. This invention features a dual-station synchronous operation structure with independent mold cylinder cleaning and mold pillar cleaning sections, enabling parallel dry rough cleaning of the female mold cylinder and male mold pillar, adapting to the production cycle of automated continuous tableting lines. Simultaneously, a negative pressure dust extraction structure is incorporated to simultaneously adsorb powder impurities removed by brushing, effectively preventing dust from flying during the cleaning process.

[0015] 2. This invention employs a multi-stage gradient cleaning process, including dry coarse cleaning, high-pressure spray pre-washing, and solvent deep cleaning. First, large powder clumps on the mold surface are removed by mechanical brushes. Then, fine dust is removed by directional spraying from a high-pressure right-angle flushing head. Finally, an ethanol solution can be used for deep cleaning according to the characteristics of the powder. This effectively removes oily and adhesive stubborn residues from mold gaps and mating surfaces, solving the problems of poor cleanliness and uneven residues in traditional cleaning methods. It also completely avoids cross-contamination between tableting batches, ensuring the precision of powder tableting and product quality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a module cleaning device for powder tableting according to the present invention. Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the cleaning platform structure and the cleaning tank structure in this invention; Figure 4 This is a schematic diagram of the support and some of its structures in this invention; Figure 5 This is a schematic diagram of the cleaning cylinder and some of its structures in this invention. Figure 1 ; Figure 6 This is a schematic diagram of the cleaning cylinder and some of its structures in this invention. Figure 2 ; Figure 7 This is a schematic diagram of the structure of the mold cylinder cleaning section and the mold column cleaning section in this invention.

[0017] In the diagram: 1. Cleaning table; 2. Control console; 3. Robotic arm; 4. Clamping cylinder one; 5. Female mold cylinder; 6. Male mold column; 7. Square hole; 8. Mold cylinder cleaning section; 9. Mold column cleaning section; 10. Support frame; 11. Cleaning tank; 12. Tank chain; 13. Linear guide rail; 14. Rotary cylinder; 15. Placement rack; 16. T-shaped frame; 17. Pneumatic mold clamp; 18. Cleaning cylinder; 19. Pneumatic mold cylinder clamp; 20. Support frame; 21. Clamping cylinder two; 22. Cleaning seat; 23. Water outlet pipe; 24. Water inlet pipe; 25. Right-angle flushing head; 26. Flushing chamber. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-7 This invention discloses a module cleaning device for powder tableting, including a cleaning table 1, a control console 2, and a robotic arm 3. The robotic arm 3 is disposed on the top surface of the cleaning table 1. The control console 2 is separately disposed from the cleaning table 1. A square hole 7 is provided on the top surface of the cleaning table 1. A mold cylinder cleaning part 8 and a mold column cleaning part 9 are provided on the top surface of the cleaning table 1 near the square hole 7. A support 10 is provided inside the cleaning table 1, with one end of the support 10 extending into the square hole 7. A cleaning tank 11 is provided inside the cleaning table 1. A lifting assembly is provided on the support 10, and two sets of clamping parts are provided on the lifting assembly. A cleaning part is provided inside the cleaning tank 11.

[0020] Specifically, one end of the robotic arm 3 is equipped with a clamping cylinder 4, which clamps a female mold cylinder 5, and a male mold column 6 is inserted into the top of the female mold cylinder 5.

[0021] In this implementation scheme, a robotic arm 3 is set up to grip and place the female mold cylinder 5 and the male mold column 6. Specifically, the robotic arm 3 is driven by a program preset by the control console 2 so that it can pick up the female mold cylinder 5 and the male mold column 6 step by step in the picking sequence. The gripping cylinder 4 operates under the control of the control console 2.

[0022] Specifically, the lifting assembly includes two sets of tank chains 12, linear guide rails 13, rotary cylinders 14, and T-shaped frames 16. The linear guide rails 13 are symmetrically arranged on the surface of the support 10. A slider is movably arranged on the outer side of the linear guide rails 13. The rotary cylinders 14 are arranged on the sliders, and the T-shaped frames 16 are arranged on the sliders. One end of each set of tank chains 12 is fixedly arranged on the surface of the support 10, and the other end is connected to the rotary cylinders 14 and the T-shaped frames 16 respectively.

[0023] In this embodiment, the linear guide rail 13 serves as a guide to lift the clamping part on the lifting assembly. Driven by the lifting cylinder of the drive source, the slider moves up and down on the linear guide rail 13 to achieve contact and separation between the female mold cylinder 5 and the male mold column 6 to be cleaned and the cleaning part. The rotary cylinder 14, which is set in a set of sliders, is used to flip the clamped male mold column 6 so that its port faces down and then docks with the cleaning part to achieve rinsing.

[0024] Specifically, a set of clamping parts is set on the rotary cylinder 14. The clamping parts include a placement frame 15 and a pneumatic mold cylinder gripper 19. The placement frame 15 is set on the output end of the rotary cylinder 14, and the pneumatic mold cylinder gripper 19 is set on the placement frame 15. The placement frame 15 is arranged in an "L" shape, wherein the gripper of the pneumatic mold cylinder gripper 19 is arranged in an "L" shape and is adapted to the female mold cylinder 5.

[0025] In this embodiment, the output end of the rotary cylinder 14 can rotate 180°, which can flip the female mold cylinder 5 placed on the placement rack 15 so that its port faces downward and connects with the cleaning unit to achieve rinsing. The pneumatic mold cylinder gripper 19 provided on the placement rack 15 is used to clamp the inverted female mold cylinder 5 to ensure the stability of the female mold cylinder 5. The pneumatic mold cylinder gripper 19 is operated to maintain the clamping state when the female mold cylinder 5 is placed on the placement rack 15. After the female mold cylinder 5 is cleaned, the rotary cylinder 14 is lifted upward under the drive of the drive source to invert the cleaned female mold cylinder 5 for drying. Then the rotary cylinder 14 rotates and resets again to flip the female mold cylinder 5 over, and the cleaned female mold cylinder 5 is removed by the robot arm 3 and the clamping cylinder 4.

[0026] Specifically, another set of clamping parts is set on the T-shaped frame 16. The clamping parts include pneumatic mold clamping claws 17, which are set on the top of the T-shaped frame 16. The clamping claws of the pneumatic mold clamping claws 17 are arranged in an "L" shape and are adapted to the male mold column 6.

[0027] In this embodiment, the slider moves up and down on the linear guide rail 13 under the drive of the lifting cylinder of the drive source, which drives the T-shaped frame 16 to move up and down. The pneumatic mold clamp 17 set on the top of the T-shaped frame 16 is used to clamp the male mold column 6. The male mold column 6 is placed with the stamping end facing down. The outer side of the male mold column 6 is kept still under the clamping of the pneumatic mold clamp 17 and is inserted downward into the cleaning part under the action of the drive source.

[0028] Specifically, the cleaning unit includes a support frame 20, a clamping cylinder 21, and a cleaning seat 22. The support frame 20 is located inside the cleaning tank 11. The clamping cylinder 21 is located at the bottom of the support frame 20 and extends horizontally. The cleaning seat 22 is located at the bottom of the support frame 20 and extends horizontally. The cleaning unit is clamped by a set of clamping units. The cleaning unit also includes a water outlet pipe 23, a water inlet pipe 24 and a docking sleeve. The docking sleeve is clamped to the clamping part, and the water outlet pipe 23 and the water inlet pipe 24 are respectively installed on the docking sleeve. The cleaning unit also includes a cleaning cylinder 18, a right-angle rinsing head 25, and a rinsing chamber 26. The cleaning cylinder 18 is mounted on the cleaning seat 22. The rinsing chamber 26 is located in the middle of the cleaning cylinder 18. The right-angle rinsing head 25 is located at the bottom of the cleaning cylinder 18 and is connected to the rinsing chamber 26.

[0029] In this embodiment, a support frame 20 is set up for the installation of the cleaning unit, wherein the clamping cylinder 21 is used for clamping and fixing the cleaning unit, and the cleaning seat 22 is used for the installation of the cleaning cylinder 18. When the port of the female mold cylinder 5 is connected to the docking sleeve, the port and inner wall of the female mold cylinder 5 are rinsed by supplying rinsing liquid (clean water and anhydrous ethanol) to the water inlet pipe 24. The rinsed liquid and its impurities are discharged through the water outlet pipe 23, and the discharged waste liquid is stored inside the cleaning tank 11. The pneumatic mold clamp 17 set on the top of the T-shaped frame 16 is used for clamping the male mold column 6. The male mold column 6 is placed with the stamping end facing down, and the stamping end is located inside the rinsing chamber 26 set inside the cleaning cylinder 18. The rinsing liquid (clean water and anhydrous ethanol) is supplied to the right-angle rinsing head 25. The rinsed liquid and its impurities are discharged through the outlet and stored inside the cleaning tank 11. The cleaned male mold column 6 is lifted upward under the action of the T-shaped frame 16, the linear guide rail 13 and the power source, and is then dried.

[0030] A cleaning method for a powder tableting module cleaning device includes the following steps: S1, console 2 performs self-test and reset of robotic arm 3 and lifting components, robotic arm 3 grabs the entire module assembly of female mold cylinder 5 and male mold column 6; S2, Dual-station synchronous dry rough cleaning: Male mold column 6 enters mold column cleaning section 9, female mold cylinder 5 enters mold cylinder cleaning section 8, and removes surface powder by rotating brush and negative pressure dust collection. S3. Then, the female mold cylinder 5 and the male mold column 6 are transferred to the lifting assembly by the robot arm 3 respectively. Then, the entire module is transferred to the spray station in the cleaning department by the operation of the lifting assembly. High pressure liquid is pre-sprayed to remove fine dust. S4. Depending on the properties of the powder, a secondary cleaning with ethanol solution can be performed to remove oily and stubborn powder stains. S5. The lifting assembly lifts the workpiece, and the robot returns the mold cylinder and mold column to their original positions. The module is then left to air dry naturally.

[0031] Specifically, in S2 and S3, the male mold column 6 is pre-cleaned by high-pressure liquid spraying inside the cleaning cylinder 18, and the water inlet pipe 24 delivers cleaning medium to rinse the female mold cylinder 5 inserted into the docking sleeve. The waste liquid flows into the cleaning pool 11 through the water outlet pipe 23 for collection.

[0032] In this implementation plan, the male mold column 6 rough cleaning branch robot 3 transfers the clamped male mold column 6 to the rotating brush station of the mold column cleaning section 9, and simultaneously starts the matching vacuum cleaner to brush off the clumps and loose powder on the surface of the mold column, thus completing the dry rough cleaning. The female mold cylinder 5 rough cleaning branch robot 3 synchronously transfers the female mold cylinder 5 to the rotating brush station of the mold cylinder cleaning section 8. The rotating brush simultaneously rotates and brushes the inner hole and outer wall, and the matching vacuum cleaner simultaneously absorbs the peeled powder, completing the dry rough cleaning of the mold. Ion air can be injected into the optional mold pillar cleaning section 9 and mold cylinder cleaning section 8. The ion air can be generated by external equipment and injected into the mold pillar cleaning section 9 and mold cylinder cleaning section 8. The purpose of this setting is to allow the powder inside the female mold cylinder 5 and the male mold pillar 6 to fall off and avoid electrostatic adsorption on the surface of the female mold cylinder 5 and the male mold pillar 6. After the two rough cleaning processes are completed, the robotic arm transfers the male mold column and female mold cylinder to the liquid spraying position of the cleaning section for high-pressure liquid spraying pre-cleaning, and then collects them in the cleaning tank 11.

[0033] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A module cleaning device for powder tableting, comprising a cleaning table (1), a control console (2), and a robotic arm (3), characterized in that, The robotic arm (3) is set on the top surface of the cleaning table (1). The control console (2) is set separately from the cleaning table (1). A square hole (7) is opened on the top surface of the cleaning table (1). A mold cylinder cleaning part (8) and a mold column cleaning part (9) are set on the top surface of the cleaning table (1) and near the square hole (7). A bracket (10) is set inside the cleaning table (1). One end of the bracket (10) extends into the square hole (7). A cleaning tank (11) is set inside the cleaning table (1). A lifting assembly is set on the bracket (10). Two sets of clamping parts are set on the lifting assembly. A cleaning part is set inside the cleaning tank (11).

2. The module cleaning device for powder tableting according to claim 1, characterized in that: One end of the robotic arm (3) is provided with a clamping cylinder (4), which clamps a female mold cylinder (5), and a male mold column (6) is inserted into the top of the female mold cylinder (5).

3. The module cleaning device for powder tableting according to claim 1, characterized in that: The lifting assembly includes two sets of tank chains (12), linear guide rails (13), rotary cylinders (14), and T-shaped frames (16). The linear guide rails (13) are symmetrically arranged on the surface of the support (10). A slider is movably arranged on the outer side of the linear guide rails (13). The rotary cylinders (14) are arranged on the sliders. The T-shaped frames (16) are arranged on the sliders. One end of each of the two sets of tank chains (12) is fixedly arranged on the surface of the support (10), and the other end is connected to the rotary cylinders (14) and the T-shaped frames (16) respectively.

4. The module cleaning device for powder tableting according to claim 3, characterized in that: The set of clamping parts is disposed on the rotary cylinder (14). The clamping parts include a placement frame (15) and a pneumatic mold cylinder clamp (19). The placement frame (15) is disposed at the output end of the rotary cylinder (14). The pneumatic mold cylinder clamp (19) is disposed on the placement frame (15). The placement frame (15) is arranged in an "L" shape. The clamp of the pneumatic mold cylinder clamp (19) is arranged in an "L" shape and is adapted to the female mold cylinder (5).

5. The module cleaning device for powder tableting according to claim 3, characterized in that: The other set of clamping parts is set on the T-shaped frame (16). The clamping parts include pneumatic mold clamps (17). The pneumatic mold clamps (17) are set on the top of the T-shaped frame (16). The clamps of the pneumatic mold clamps (17) are arranged in an "L" shape and are adapted to the male mold column (6).

6. The method for cleaning a module for powder tableting according to claim 1, characterized in that: The cleaning unit includes a support frame (20), a clamping cylinder (21), and a cleaning seat (22). The support frame (20) is located inside the cleaning tank (11). The clamping cylinder (21) is located at the bottom of the support frame (20) and extends horizontally. The cleaning seat (22) is located at the bottom of the support frame (20) and extends horizontally. The cleaning unit is clamped by a set of clamping units.

7. A module cleaning device for powder tableting according to claim 6, characterized in that: The cleaning unit also includes a water outlet pipe (23), a water inlet pipe (24), and a docking sleeve. The docking sleeve is clamped to the clamping part, and the water outlet pipe (23) and the water inlet pipe (24) are respectively disposed on the docking sleeve.

8. A module cleaning device for powder tableting according to claim 6, characterized in that: The cleaning unit also includes a cleaning cylinder (18), a right-angle rinsing head (25), and a rinsing chamber (26). The cleaning cylinder (18) is mounted on the cleaning seat (22). The rinsing chamber (26) is provided in the middle of the cleaning cylinder (18). The right-angle rinsing head (25) is located at the bottom of the cleaning cylinder (18). The right-angle rinsing head (25) is connected to the rinsing chamber (26).

9. A cleaning method applied to the powder tableting module cleaning apparatus according to any one of claims 1-8, characterized in that, Includes the following steps: S1. The control console (2) performs a self-test and reset of the robot arm (3) and the lifting assembly. The robot arm (3) grabs the entire module consisting of the female mold cylinder (5) and the male mold column (6). S2, Dual-station synchronous dry rough cleaning: The male mold column (6) enters the mold column cleaning section (9), and the female mold cylinder (5) enters the mold cylinder cleaning section (8). The surface powder is removed by rotating the brush and vacuuming the dust. S3. Then, the female mold cylinder (5) and the male mold column (6) are transferred to the lifting assembly by the robot (3), and then the entire module is transferred to the spray station in the cleaning department by the operation of the lifting assembly. High pressure liquid is pre-sprayed to remove fine dust. S4. Depending on the properties of the powder, a secondary cleaning with ethanol solution can be performed to remove oily and stubborn powder stains. S5. The lifting assembly lifts the workpiece, and the robot returns the mold cylinder and mold column to their original positions. The module is then left to air dry naturally.

10. The cleaning method of the module cleaning device for powder tableting according to claim 9, characterized in that: In S2 and S3, the male mold column (6) is pre-cleaned by high-pressure liquid spraying inside the cleaning cylinder (18). The water inlet pipe (24) delivers the cleaning medium to rinse the female mold cylinder (5) inserted into the docking sleeve. The waste liquid flows into the cleaning pool (11) through the water outlet pipe (23) for collection.

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