A Chinese medicine filling device and filling method for hard capsule production

Abstract

The present invention discloses a Chinese medicine filling device and filling method for hard capsule production, comprising a base plate, a connecting shaft fixedly provided at the middle part of the upper end of the base plate, a rotating disk provided on the outer peripheral wall of the connecting shaft, a rotating structure provided at the bottom end of the rotating disk, and a rotating plate provided at the top end of the rotating disk. The present invention relates to the technical field of Chinese medicine hard capsule production. The Chinese medicine filling device and filling method for hard capsule production, through the setting of the upper mold groove, when the capsule falls into the interior of the upper mold groove, the capsule outer shell is stuck, and the capsule inner shell slides into the interior of the lower mold groove, and a negative pressure is formed by the air pressure regulating device, the capsule inner shell is sucked through the suction hole, and the lower mold seat is stretched downward to pull the capsule inner shell out from the capsule outer shell, thereby achieving the purpose of separating the capsule, and the lower mold seat moves downward, and the part of the capsule inner shell that is longer than the capsule outer shell will slide into the interior of the mounting groove, which can effectively avoid the problem of collision of the capsule inner shell and deformation.

Description

Technical Field

[0001] The present invention relates to the technical field of production of traditional Chinese medicine hard capsules, in particular to a traditional Chinese medicine filling device and a filling method for the production of hard capsules. Background Art

[0002] Hard capsules are made by adding a certain amount of medicinal extract to powder or excipients to form a uniform powder or granules, which is then filled into hollow capsules. Alternatively, the powdered medicinal material is directly dispensed into the capsules. In modern Chinese medicine production, hard capsules offer advantages such as relatively simple manufacturing, ease of administration, rapid onset of action, and effective isolation of unpleasant drug odors.

[0003] However, in the prior art, since the capsule is generally composed of an outer shell and an inner shell connected together, the inner shell is longer than the outer shell. Therefore, when the capsule is opened and the medicine is filled, the inner shell is easily deformed, resulting in the problem of the medicine not being tightly closed, and thus easily resulting in the appearance of defective medicine.

[0004] Therefore, those skilled in the art provide a Chinese medicine filling device and a filling method for hard capsule production to solve the problems raised in the above background technology. Summary of the Invention

[0005] The object of the present invention is to provide a Chinese medicine filling device and a filling method for hard capsule production to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] According to one aspect of the invention, a Chinese medicine filling device for producing hard capsules is provided.

[0008] The Chinese medicine filling equipment for hard capsule production includes a base plate, a connecting shaft is fixedly provided at the middle of the upper end of the base plate, a rotating disk is provided on the outer peripheral wall of the connecting shaft, a rotating structure is provided at the bottom end of the rotating disk, a rotating plate is provided at the top end of the rotating disk, a positioning plate is provided at the top end of the connecting shaft, and a driving structure is provided on the side wall of the positioning plate;

[0009] Several evenly distributed mounting grooves are provided near the inner portion of the rotating disk. The capsule opening module is provided inside the mounting grooves. A guide outer frame is provided at the bottom of the rotating disk corresponding to the mounting grooves. The bottom of the guide outer frame is provided with an air pressure regulating device.

[0010] An external suspension is extended from the outer peripheral wall of the base plate, a clamping plate is provided at the top of the external suspension, a capsule conveying device is provided at a position corresponding to one of the mounting slots inside the clamping plate, an extension platform is provided on one side of the base plate, a powder tank is provided on the top of the extension platform, a stirring structure is provided inside the powder tank, and a feeding structure is provided on one side of the bottom end of the powder tank.

[0011] Furthermore, the rotating structure includes a connecting tube, which is fixedly mounted on the top of the base plate and sleeved on the outer peripheral wall of the connecting shaft. The interior of the connecting tube is rotatably connected to a driving gear ring, which is fixedly connected to the bottom end of the rotating disk and coaxially arranged with the rotating disk. A turntable motor is arranged inside the connecting tube, and a turntable gear meshing with the driving gear ring is arranged on the motor shaft of the turntable motor.

[0012] Furthermore, the driving structure includes a mounting plate, which is fixedly arranged on the side wall of the positioning plate, a driving motor is arranged inside the mounting plate, a driving gear is arranged at the bottom end of the driving motor, and an outer ring gear is arranged coaxially with the connecting shaft on the outer wall of the rotating plate, and the outer ring gear is meshed with the driving gear.

[0013] Furthermore, the capsule opening module includes an upper mold base and a lower mold base, the upper mold base is provided with a plurality of evenly distributed upper mold grooves, the inner bottom end of the upper mold groove is provided with an annular retaining ring, and the diameter of the upper mold groove is equal to the diameter of the capsule shell.

[0014] Furthermore, a plurality of evenly distributed lower mold grooves are provided inside the lower mold base, the bottom ends of the lower mold grooves are arranged in the same arc shape as the capsule inner shell, and suction holes are provided on the groove walls at the bottom ends of the lower mold grooves.

[0015] Furthermore, the air pressure regulating device includes a sliding plate, which is slidably installed inside the guide outer frame and slidably connected to the guide outer frame. An extension outer frame is provided at the bottom end of the guide outer frame, and an electric telescopic rod is provided inside the extension outer frame, and the electric telescopic rod is fixedly connected to the bottom end of the sliding plate.

[0016] Furthermore, the capsule transmission equipment includes a fixed tube, a rotating frame is provided at the bottom end of the fixed tube, an adjusting turntable is provided inside the rotating frame, a diversion tube is provided inside the adjusting turntable and is coaxial with the fixed tube, a pop-up spring is provided inside the diversion tube, an adjusting frame is provided at the bottom end of the rotating frame, the width of the adjusting frame is equal to the diameter of the capsule outer frame, a discharge hole corresponding to the upper mold groove is provided at the bottom end of the adjusting frame, an air guide hole is provided on the back side of the adjusting frame, and an arc-shaped guide plate is provided inside the adjusting frame.

[0017] Furthermore, the feeding structure includes a discharge pipe, which is connected to the powder tank. The number of discharge pipes is equal to the number of upper mold grooves. A flexible spiral rod is provided inside the discharge pipe, and a medicine feeding motor connected to the flexible spiral rod is provided inside the powder tank. A medicine discharge plate is provided on the outer peripheral wall of the discharge pipe. A positioning tube corresponding to the upper mold groove is provided inside the medicine discharge plate. The discharge pipe is inserted into the interior of the positioning tube and bends downward to extend. The bent part of the discharge pipe is coaxially arranged with the positioning tube.

[0018] Furthermore, the stirring structure includes a stirring motor located at the bottom end of the medicine powder tank, and a stirring shaft that passes through the medicine powder tank is provided at the top end of the stirring motor.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. A Chinese medicine filling device for producing hard capsules, through the setting of the upper die groove, when the capsule falls into the interior of the upper die groove, the capsule outer shell is stuck, and the capsule inner shell slides into the interior of the lower die groove, and the air pressure regulating device forms a negative pressure, sucks the capsule inner shell through the suction hole, and stretches the lower die seat downward to pull the capsule inner shell out of the capsule outer shell, thereby achieving the purpose of separating the capsule, and the lower die seat moves downward, and the part of the capsule inner shell that is longer than the capsule outer shell slides into the interior of the installation groove, which can effectively avoid the problem of collision of the capsule inner shell and deformation;

[0021] 2. This kind of Chinese medicine filling equipment for hard capsule production controls the position of the sliding plate inside the guide outer frame and the extended outer frame through the setting of the electric telescopic rod, adjusts the gap between the sliding plate and the lower mold base, and generates negative pressure to attract the lower mold base downward. When the capsule is inserted into the lower mold groove, the suction hole can be closed, and the capsule shell can be effectively adsorbed by the negative pressure, and the capsule can be effectively separated during the downward movement of the lower mold base. When the lower mold base rotates to the bottom side of the positioning plate and the upper mold base and the rotating plate are affected by the driving structure to rotate to the positioning plate, the electric telescopic rod pushes the sliding plate to move upward, so that the lower mold base pushes the capsule inner shell to move upward, so that the capsule inner shell is inserted into the inside of the capsule shell. The air pressure regulating device can effectively open and close the capsule through air pressure to improve the stability of capsule production.

[0022] According to another aspect of the present invention, a filling method is provided for use with the aforementioned Chinese medicine filling equipment for producing hard capsules.

[0023] The filling method comprises the following steps:

[0024] S101, loading: put the empty capsule into the funnel at the top of the fixed tube, and put the Chinese medicine powder into the powder tank;

[0025] S102, opening the capsule: pushing the capsule into the capsule opening module through the capsule conveying device, and opening the capsule so that the capsule outer frame is located in the upper mold base and the capsule inner shell is located in the lower mold base;

[0026] S103, filling the medicine powder: the rotating disk is driven by the rotating structure to rotate to the bottom end of the feeding structure, and the material is injected into the inner shell of the capsule through the feeding structure;

[0027] S104, closing the capsule: after the injection is completed, the rotating disk continues to rotate, rotating the lower mold base to the bottom side of the positioning plate. At the same time, the upper mold base and the rotating plate are affected by the driving structure to rotate to the positioning plate, and push the capsule inner shell upward to close the capsule.

[0028] Compared with the existing technology, this method has the following beneficial effects:

[0029] When the capsule shell enters the interior of the fixed tube, by rotating the frame and adjusting the dial, the outer shell end of the capsule is always facing downward when the capsule enters the interior of the adjustment frame, so that the capsule can be inserted into the interior of the upper mold groove, and the capsule outer frame is located in the upper mold base, and the capsule inner shell is located in the lower mold base, which can effectively improve the stability of capsule production. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 This is a schematic structural diagram of a Chinese medicine filling device for producing hard capsules according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic structural diagram of a driving structure of a Chinese medicine filling device for hard capsule production according to an embodiment of the present invention;

[0033] Figure 3 This is a structural schematic diagram of a capsule opening module of a traditional Chinese medicine filling device for producing hard capsules according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic structural diagram of a capsule conveying device of a traditional Chinese medicine filling device for producing hard capsules according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic structural diagram of a medicine powder tank of a traditional Chinese medicine filling device for producing hard capsules according to an embodiment of the present invention;

[0036] Figure 6 This is a schematic structural diagram of a feeding structure of a Chinese medicine filling device for producing hard capsules according to an embodiment of the present invention;

[0037] Figure 7 This is a structural schematic diagram of a positioning plate of a Chinese medicine filling device for producing hard capsules according to an embodiment of the present invention;

[0038] Reference numerals:

[0039] 1. Bottom plate; 2. Connecting shaft; 3. Rotating disk; 4. Rotating structure; 41. Connecting cylinder; 42. Driving gear ring; 43. Rotating disk motor; 44. Rotating disk gear; 5. Rotating plate; 6. Positioning plate; 7. Driving structure; 71. Mounting plate; 72. Driving motor; 73. Driving gear; 74. Outer gear ring; 8. Mounting groove; 9. Capsule opening module; 91. Upper die base; 92. Lower die base; 93. Upper die groove; 94. Annular retaining ring; 95. Lower die groove; 96. Air suction hole; 10. Guide outer frame; 11. Air pressure regulating device; 111. Sliding plate; 112. Extended outer frame; 11 3. Electric telescopic rod; 12. External suspension; 13. Clamping plate; 14. Capsule conveying equipment; 141. Fixed tube; 142. Rotating frame; 143. Adjusting turntable; 144. Diverter tube; 145. Pop-up retaining spring; 146. Adjusting frame; 147. Discharge hole; 148. Air guide hole; 149. Arc guide plate; 15. Extension table; 16. Powder tank; 17. Stirring structure; 171. Stirring motor; 172. Stirring shaft; 18. Feeding structure; 181. Discharge pipe; 182. Flexible screw rod; 183. Drug feeding motor; 184. Drug discharging plate; 185. Positioning tube. DETAILED DESCRIPTION

[0040] Below, the invention is further described with reference to the accompanying drawings and specific embodiments:

[0041] Example 1: Reference Figure 1 - Figure 7 The present invention discloses a Chinese medicine filling device for hard capsule production, comprising a bottom plate, a connecting shaft 2 fixedly provided at the middle of the upper end of the bottom plate, a rotating disk 3 provided on the outer peripheral wall of the connecting shaft 2, a rotating structure 4 provided at the bottom end of the rotating disk 3, a rotating plate 5 provided at the top end of the rotating disk 3, a positioning plate 6 provided at the top end of the connecting shaft 2, and a driving structure 7 provided on the side wall of the positioning plate 6;

[0042] Several evenly distributed mounting grooves 8 are provided near the inner portion of the rotating disk 3. A capsule opening module 9 is provided inside the mounting groove 8. A guide outer frame 10 is provided at the bottom end of the rotating disk 3 corresponding to the mounting groove 8. An air pressure regulating device 11 is provided at the bottom end of the guide outer frame 10.

[0043] An external suspension 12 is extended from the outer peripheral wall of the base plate, and a clamping plate 13 is provided at the top of the external suspension 12. A capsule conveying device 14 is provided at a position corresponding to one of the mounting slots 8 inside the clamping plate 13. An extension platform 15 is provided on one side of the base plate, and a powder tank 16 is provided on the top of the extension platform 15. A stirring structure 17 is provided inside the powder tank 16, and a feeding structure 18 is provided on one side of the bottom end of the powder tank 16.

[0044] In this embodiment, an empty capsule is placed into the funnel at the top of the fixed tube 141. When the capsule shell enters the interior of the fixed tube 141, the frame 142 and the adjustment dial 143 are rotated so that the outer shell end of the capsule always faces downward when the capsule enters the interior of the adjustment frame 146, so that the capsule can be inserted into the interior of the upper mold groove 93, and the capsule outer frame is located in the upper mold base 91, and the capsule inner shell is located in the lower mold base 92, and the Chinese medicine powder is placed into the powder tank 16;

[0045] The rotating disc 3 is driven by the rotating structure 4 to rotate to the bottom end of the feeding structure 18, and the material is injected into the inner shell of the capsule through the feeding structure 18. The flexible screw rod 182 is driven to rotate by the medicine feeding motor 183, thereby pushing the material in the medicine powder tank 16 into the inside of the discharge pipe 181, and the material is discharged through the discharge pipe 181. Since the discharge pipe 181 is inserted into the inside of the positioning tube 185 and the discharge pipe is bent and extended downward, the bent part of the discharge pipe 181 is coaxially arranged with the positioning tube 185, so that the medicine powder can be effectively transferred to the inside of the capsule inner shell, thereby achieving the purpose of filling the medicine.

[0046] After the injection is completed, the rotating disk 3 continues to rotate, and the lower mold base 92 rotates to the bottom side of the positioning plate 6. At the same time, the upper mold base 91 and the rotating plate 5 are affected by the driving structure 7 and rotate to the inner side of the positioning plate 6. The electric telescopic rod 113 pushes the sliding plate 111 to move upward, so that the lower mold base 92 pushes the capsule inner shell to move upward, so that the capsule inner shell is inserted into the inner side of the capsule outer shell. Figure 7 As shown, the interior of the positioning plate 6 is arc-shaped, which can not only form a supporting force for the capsule shell to facilitate the closing of the capsule shell and the capsule inner shell, but also form a guide through the arc-shaped part so that the capsule can be discharged through the arc-shaped part after closing.

[0047] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the rotating structure 4 includes a connecting tube 41, which is fixedly mounted on the top of the base plate and sleeved on the outer peripheral wall of the connecting shaft 2. The interior of the connecting tube 41 is rotatably connected to a driving gear ring 42, which is fixedly connected to the bottom end of the rotating disk 3 and coaxially arranged with the rotating disk 3. A turntable motor 43 is arranged inside the connecting tube 41, and a turntable gear 44 meshing with the driving gear ring 42 is arranged at the motor shaft of the turntable motor 43.

[0048] In this embodiment, the turntable motor 43 drives the driving gear ring 42 and the rotating disk 3 to rotate through the turntable gear 44, which is used to adjust the position of the lower mold base 92 and transmit the lower mold base 92 to the bottom end of different mechanisms to complete the steps of opening the capsule, filling the powder and closing the capsule. The turntable motor 43 is a servo motor to facilitate controlling the rotation angle of the rotating disk 3.

[0049] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the driving structure 7 includes a mounting plate 71, which is fixedly arranged on the side wall of the positioning plate 6. A driving motor 72 is arranged inside the mounting plate 71, and a driving gear 73 is arranged at the bottom end of the driving motor 72. The outer wall of the rotating plate 5 is provided with an outer ring gear 74 coaxially arranged with the connecting shaft 2, and the outer ring gear 74 is meshed with the driving gear 73.

[0050] In this embodiment, the driving motor 72 controls the driving gear 73 to rotate, and the driving gear 73 and the outer ring gear 74 cooperate to drive the rotating plate 5 to rotate. The turntable motor 43 is a servo motor to control the rotation angle of the rotating plate 5, so that the rotating plate 5 drives the upper mold base 91 to move to the position of the positioning plate 6, corresponding to the lower mold base 92 after filling with medicine powder, so as to close the capsule through the air pressure regulating device 11.

[0051] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the capsule opening module 9 includes an upper mold base 91 and a lower mold base 92. A plurality of evenly distributed upper mold grooves 93 are provided inside the upper mold base 91. An annular retaining ring 94 is provided at the inner bottom end of the upper mold groove 93, and the diameter of the upper mold groove 93 is equal to the diameter of the capsule shell.

[0052] The lower die base 92 is provided with a plurality of evenly distributed lower die grooves 95 . The bottom of the lower die groove 95 is arranged in the same arc shape as the capsule inner shell. The bottom groove wall of the lower die groove 95 is provided with an air suction hole 96 .

[0053] In this embodiment, by setting the upper die groove, when the capsule falls into the interior of the upper die groove 93, the capsule outer shell is stuck, and the capsule inner shell slides into the interior of the lower die groove 95, as shown in FIG. Figure 3 As shown, negative pressure is formed by the air pressure regulating device 11, the capsule inner shell is sucked through the suction hole 96, and the lower mold base 92 is stretched downward to pull the capsule inner shell out of the capsule outer shell, thereby achieving the purpose of separating the capsule, and the lower mold base 92 moves downward, and the part of the capsule inner shell that is longer than the capsule outer shell will slide into the inside of the mounting groove 8, which can effectively avoid the capsule inner shell from colliding and causing deformation.

[0054] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the air pressure regulating device 11 includes a sliding plate 111, which is slidably installed inside the guide outer frame 10 and is slidably connected to the guide outer frame 10. The bottom end of the guide outer frame 10 is provided with an extension outer frame 112, and the interior of the extension outer frame 112 is provided with an electric telescopic rod 113, and the electric telescopic rod 113 is fixedly connected to the bottom end of the sliding plate 111.

[0055] In this embodiment, the position of the sliding plate 111 inside the guide outer frame 10 and the extension outer frame 112 is controlled by the setting of the electric telescopic rod 113 to adjust the gap between the sliding plate 111 and the lower mold base 92, thereby generating negative pressure to attract the lower mold base 92 downward. Moreover, since the bottom end of the lower mold groove 95 is arranged in the same arc shape as the capsule inner shell, when the capsule is inserted into the lower mold groove 95, the suction hole 96 can be closed, and the capsule inner shell can be effectively adsorbed by the negative pressure, thereby effectively separating the capsule during the downward movement of the lower mold base 92.

[0056] On the other hand, when the lower mold base 92 rotates to the bottom side of the positioning plate 6, the upper mold base 91 and the rotating plate 5 are affected by the driving structure 7 and rotate to the inside of the positioning plate 6. The electric telescopic rod 113 pushes the sliding plate 111 to move upward, so that the lower mold base 92 pushes the capsule inner shell to move upward, so that the capsule inner shell is inserted into the inside of the capsule outer shell. Figure 7 As shown, the interior of the positioning plate 6 is arc-shaped, which can not only form a supporting force for the capsule shell to facilitate the closing of the capsule shell and the capsule inner shell, but also form a guide through the arc-shaped part so that the capsule can be discharged through the arc-shaped part after closing.

[0057] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the capsule transmission device 14 includes a fixed tube 141, a rotating frame 142 is provided at the bottom end of the fixed tube 141, an adjusting turntable 143 is provided inside the rotating frame 142, a diverter tube 144 is provided inside the adjusting turntable 143 and is coaxial with the fixed tube 141, a pop-up spring 145 is provided inside the diverter tube 144, an adjusting frame 146 is provided at the bottom end of the rotating frame 142, the width of the adjusting frame 146 is equal to the diameter of the capsule outer frame, a discharge hole 147 corresponding to the upper mold groove 93 is provided at the bottom end of the adjusting frame 146, an air guide hole 148 is provided on the back side of the adjusting frame 146, and an arc-shaped guide plate 149 is provided inside the adjusting frame 146.

[0058] In this embodiment, the capsule shell is dropped into the interior of the fixed tube 141 through the funnel at the top of the fixed tube 141. When the shell end of the capsule enters the interior of the fixed tube 141, the arc of the shell end of the capsule pushes the pop-up retaining spring 145, so that the pop-up retaining spring 145 is close to the wall of the shunt tube 144, so that the capsule can slide down smoothly until it enters the interior of the adjustment frame 146. Since the internal width diameter of the adjustment frame 146 is equal to the diameter of the capsule shell, the interior of the adjustment frame 146 will form a large friction force on the capsule shell. At this time, the two air guide holes 148 take in air at the same time. It can effectively push the capsule to deflect. Since the capsule shell is located at the bottom side and the friction is relatively large, the inner shell of the capsule will tilt toward the discharge hole 147. At this time, the capsule forms a tilted shape. Therefore, only the outer shell of the capsule is affected by the wind force of the air guide hole 148, which can effectively push the capsule to slide and enter the discharge hole 147 through the guidance of the arc-shaped guide plate 149 and fall into the interior of the upper mold groove 93. At this time, the inner shell of the capsule corresponds to the lower mold base 92, and the outer shell of the capsule corresponds to the upper mold base 91, so that the capsule can be separated by the air pressure regulating device 11.

[0059] On the other hand, if the inner shell end of the capsule enters the interior of the shunt tube 144, the inner shell end of the capsule pushes the pop-up retaining spring 145 to move, so that the pop-up retaining spring 145 abuts against the edge of the capsule outer shell. Figure 4 As shown, the capsule cannot move downward. At this time, the sensor at the top of the pop-up retaining spring 145 contacts the capsule shell and controls the motor inside the rotating frame 142 to rotate the adjustment dial 143 180 degrees. At this time, the capsule shell rotates to the bottom and slides into the interior of the adjustment frame 146. Similarly, the capsule is pushed into the interior of the discharge hole 147 through the air guide hole 148.

[0060] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the feeding structure 18 includes a discharge pipe 181, which is connected to the powder tank 16. The number of discharge pipes 181 is equal to the number of upper mold grooves 93. A flexible spiral rod 182 is provided inside the discharge pipe 181, and a medicine feeding motor 183 connected to the flexible spiral rod 182 is provided inside the powder tank 16. The outer peripheral wall of the discharge pipe 181 is jointly provided with a medicine discharge plate 184, and the interior of the medicine discharge plate 184 is provided with a positioning tube 185 corresponding to the upper mold groove 93. The discharge pipe 181 is inserted into the interior of the positioning tube 185 and bends downward to extend. The bent part of the discharge pipe 181 is coaxially arranged with the positioning tube 185.

[0061] In this embodiment, the flexible screw rod 182 is driven to rotate by the medicine feeding motor 183, thereby pushing the material inside the medicine powder tank 16 into the inside of the discharge pipe 181, and the material is discharged through the discharge pipe 181. Since the discharge pipe 181 is inserted into the inside of the positioning tube 185, and the discharge pipe is bent and extended downward, the bent part of the discharge pipe 181 is coaxially arranged with the positioning tube 185, so that the medicine powder can be effectively transferred to the inside of the capsule inner shell, thereby achieving the purpose of filling the medicine.

[0062] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the stirring structure 17 includes a stirring motor 171 located at the bottom end of the medicine powder tank 16 , and a stirring shaft 172 penetrating the medicine powder tank 16 is provided at the top end of the stirring motor 171 .

[0063] In this embodiment, the interior of the powder tank 16 is stirred by the setting of the stirring motor 171 and the stirring shaft 172, so that the Chinese medicine powder inside is more uniform, thereby achieving the purpose of improving the uniformity of filling. The outer wall of the stirring shaft 172 is provided with a stirring structure, but since the stirring structure is relatively common, it is not described in detail.

[0064] Embodiment 2: According to another aspect of the present invention, a filling method is provided for use in the Chinese medicine filling equipment for the production of the above-mentioned hard capsules.

[0065] The filling method comprises the following steps:

[0066] S101, loading: an empty capsule is placed into the funnel at the top of the fixed tube 141. When the capsule shell enters the fixed tube 141, the frame 142 and the adjustment dial 143 are rotated so that the outer shell of the capsule always faces downward when entering the adjustment frame 146, so that the capsule can be inserted into the upper die groove 93, and the capsule outer frame is located in the upper die seat 91, and the capsule inner shell is located in the lower die seat 92. The Chinese medicine powder is placed into the powder tank 16;

[0067] S102, opening the capsule: pushing the capsule into the capsule opening module 9 through the capsule transfer device 14, and opening the capsule so that the capsule outer frame is located in the upper mold base 91 and the capsule inner shell is located in the lower mold base 92;

[0068] S103, filling medicine powder: the rotating structure 4 drives the rotating disk 3 to rotate to the bottom end of the feeding structure 18, and the feeding structure 18 injects the material into the inner shell of the capsule. The medicine feeding motor 183 drives the flexible screw rod 182 to rotate, thereby pushing the material in the medicine powder tank 16 into the inside of the discharge pipe 181, and the material is discharged through the discharge pipe 181. Since the discharge pipe 181 is inserted into the inside of the positioning pipe 185 and the discharge pipe is bent and extended downward, the bent part of the discharge pipe 181 is coaxially arranged with the positioning pipe 185, so that the medicine powder can be effectively transferred to the inside of the capsule inner shell, thereby achieving the purpose of filling the medicine;

[0069] S104, closing the capsule: After the injection is completed, the rotating disk 3 continues to rotate, and the lower mold base 92 rotates to the bottom side of the positioning plate 6. At the same time, the upper mold base 91 and the rotating plate 5 are affected by the driving structure 7 to rotate to the inside of the positioning plate 6. The electric telescopic rod 113 pushes the sliding plate 111 to move upward, so that the lower mold base 92 pushes the capsule inner shell to move upward, so that the capsule inner shell is inserted into the inside of the capsule outer shell. Figure 7 As shown, the interior of the positioning plate 6 is arc-shaped, which can not only form a supporting force for the capsule shell to facilitate the closing of the capsule shell and the capsule inner shell, but also form a guide through the arc-shaped part so that the capsule can be discharged through the arc-shaped part after closing.

[0070] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A Chinese medicine filling device for hard capsule production, characterized in that: The base plate (1) comprises a connecting shaft (2) fixedly provided at the middle of the upper end of the base plate (1), a rotating disk (3) provided on the outer peripheral wall of the connecting shaft (2), a rotating structure (4) provided at the bottom end of the rotating disk (3), a rotating plate (5) provided at the top end of the rotating disk (3), a positioning plate (6) provided at the top end of the connecting shaft (2), and a driving structure (7) provided on the side wall of the positioning plate (6); A plurality of evenly distributed mounting grooves (8) are provided near the interior of the rotating disk (3), a capsule opening module (9) is provided inside the mounting groove (8), a guide outer frame (10) is provided at a position corresponding to the mounting groove (8) at the bottom end of the rotating disk (3), and an air pressure regulating device (11) is provided at the bottom end of the guide outer frame (10); An outer suspension (12) is extended from the outer peripheral wall of the base plate (1), a clamping plate (13) is provided at the top end of the outer suspension (12), a capsule conveying device (14) is provided at a position corresponding to one of the mounting grooves (8) inside the clamping plate (13), an extension platform (15) is provided on one side of the base plate (1), a medicine powder tank (16) is provided at the top end of the extension platform (15), a stirring structure (17) is provided inside the medicine powder tank (16), and a feeding structure (18) is provided on one side of the bottom end of the medicine powder tank (16); The capsule opening module (9) comprises an upper die base (91) and a lower die base (92), wherein a plurality of evenly distributed upper die grooves (93) are provided inside the upper die base (91), an annular retaining ring (94) is provided at the inner bottom end of the upper die groove (93), and the diameter of the upper die groove (93) is equal to the diameter of the capsule shell; The lower die base (92) is provided with a plurality of evenly distributed lower die grooves (95), the bottom ends of the lower die grooves (95) are arranged in the same arc shape as the capsule inner shell, and the bottom end groove wall of the lower die grooves (95) is provided with air suction holes (96).

2. The Chinese medicine filling equipment for hard capsule production according to claim 1, characterized in that: The rotating structure (4) includes a connecting tube (41), which is fixedly mounted on the top of the bottom plate (1) and sleeved on the outer peripheral wall of the connecting shaft (2). The interior of the connecting tube (41) is rotatably connected to a driving gear ring (42), which is fixedly connected to the bottom end of the rotating disk (3) and coaxially arranged with the rotating disk (3). A turntable motor (43) is arranged inside the connecting tube (41), and a turntable gear (44) meshing with the driving gear ring (42) is arranged on the motor shaft of the turntable motor (43).

3. The Chinese medicine filling equipment for hard capsule production according to claim 2, characterized in that: The driving structure (7) includes a mounting plate (71), the mounting plate (71) is fixedly mounted on the side wall of the positioning plate (6), a driving motor (72) is arranged inside the mounting plate (71), a driving gear (73) is arranged at the bottom end of the driving motor (72), and an outer ring gear (74) is arranged coaxially with the connecting shaft (2) on the outer side wall of the rotating plate (5), and the outer ring gear (74) is meshed with the driving gear (73).

4. The Chinese medicine filling equipment for hard capsule production according to claim 3, characterized in that: The air pressure regulating device (11) includes a sliding plate (111), the sliding plate (111) is slidably mounted inside the guide outer frame (10) and is slidably connected to the guide outer frame (10), an extension outer frame (112) is provided at the bottom end of the guide outer frame (10), an electric telescopic rod (113) is provided inside the extension outer frame (112), and the electric telescopic rod (113) is fixedly connected to the bottom end of the sliding plate (111).

5. The Chinese medicine filling equipment for hard capsule production according to claim 4, characterized in that: The capsule transmission device (14) includes a fixed tube (141), a rotating frame (142) is provided at the bottom end of the fixed tube (141), an adjusting turntable (143) is provided inside the rotating frame (142), a diverter tube (144) is provided inside the adjusting turntable (143) and is coaxial with the fixed tube (141), a pop-up spring (145) is provided inside the diverter tube (144), an adjusting frame (146) is provided at the bottom end of the rotating frame (142), the width of the adjusting frame (146) is equal to the diameter of the capsule outer frame, a discharge hole (147) corresponding to the upper mold groove (93) is provided at the bottom end of the adjusting frame (146), an air guide hole (148) is provided on the back side of the adjusting frame (146), and an arc-shaped guide plate (149) is provided inside the adjusting frame (146).

6. The Chinese medicine filling equipment for hard capsule production according to claim 5, characterized in that: The feeding structure (18) includes a discharge pipe (181), which is connected to the medicine powder tank (16). The number of the discharge pipes (181) is equal to the number of the upper mold grooves (93). A flexible spiral rod (182) is provided inside the discharge pipe (181). A medicine feeding motor (183) connected to the flexible spiral rod (182) is provided inside the medicine powder tank (16). A medicine discharge plate (184) is provided on the outer peripheral wall of the discharge pipe (181). A positioning tube (185) corresponding to the upper mold groove is provided inside the medicine discharge plate (184). The discharge pipe (181) is inserted into the interior of the positioning tube (185) and bends downward to extend. The bent portion of the discharge pipe (181) is coaxially arranged with the positioning tube (185).

7. The Chinese medicine filling equipment for hard capsule production according to claim 6, characterized in that: The stirring structure (17) includes a stirring motor (171) located at the bottom end of the medicine powder tank (16), and a stirring shaft (172) penetrating the medicine powder tank (16) is provided at the top end of the stirring motor (171).

8. A filling method, characterized in that: The Chinese medicine filling equipment for producing hard capsules according to claim 7 comprises the following steps: S101, loading: put the empty capsule into the funnel at the top of the fixed tube, and put the Chinese medicine powder into the powder tank; S102, opening the capsule: pushing the capsule into the capsule opening module through the capsule conveying device, and opening the capsule so that the capsule outer frame is located in the upper mold base and the capsule inner shell is located in the lower mold base; S103, filling the medicine powder: the rotating disk is driven by the rotating structure to rotate to the bottom end of the feeding structure, and the material is injected into the inner shell of the capsule through the feeding structure; S104, closing the capsule: after the injection is completed, the rotating disk continues to rotate, rotating the lower mold base to the bottom side of the positioning plate. At the same time, the upper mold base and the rotating plate are affected by the driving structure to rotate to the positioning plate, and push the capsule inner shell upward to close the capsule.

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