Spiral blanking equipment and blanking method for traditional Chinese medicine decoction pieces

Abstract

The invention provides traditional Chinese medicine decoction piece spiral discharging equipment and a discharging method. Relates to the technical field of traditional Chinese medicine production. A positioning frame is fixedly arranged above the bottom plate, a discharging barrel is fixedly arranged in the positioning frame, a positioning plate is fixedly arranged at the left end of the discharging barrel, and a screw rod is installed in the discharging barrel; the driving mechanism comprises a mounting frame mounted on the upper surface of the bottom plate, a double-end motor is mounted in the mounting frame through bolts, and a first ratchet wheel is connected to an output shaft key groove in the top end of the double-end motor; according to the scheme, a reciprocating ring with a fixed stroke is designed in a linkage manner on the basis of realizing rotary conveying of the screw rod to drive a lower pressing plate to lift at a constant speed to press down the traditional Chinese medicine decoction pieces, pressure is applied from the upper part of the traditional Chinese medicine decoction pieces, and the caked traditional Chinese medicine decoction pieces can be progressively beaten and caked layer by layer through the rotating screw rod, so that excessive crushing can be avoided, and the crushing efficiency is improved. And the material blocking condition can be eliminated, and the integrity of the traditional Chinese medicine decoction pieces can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of Chinese medicine production, and in particular to a spiral feeding device and a feeding method for Chinese medicine pieces. Background Art

[0002] In the production process of traditional Chinese medicine, it is necessary to mix the set Chinese herbal slices according to the set dosage and decocted them together to form a Chinese medicine preparation. Weighing the set weight of Chinese herbal slices is called dispensing. In order to realize the automated production of traditional Chinese medicine, technical personnel in this field have been committed to developing a Chinese herbal slice conveying mechanism to realize the automated production of traditional Chinese medicine.

[0003] Announcement No. CN109230621A relates to a spiral feeding mechanism for Chinese herbal medicine slices, comprising a feed hopper, a discharge port, and a spiral feeder for conveying Chinese herbal medicine slices from the feed hopper to the discharge port, wherein the discharge port is provided with a feeding brush for brushing off the Chinese herbal medicine slices in the output end of the spiral feeder and a brush rotating motor for driving the feeding brush to rotate. A spiral feeding mechanism for Chinese herbal medicine slices is provided, which can conveniently realize intermittent feeding and effectively prevent Chinese herbal medicine slices from falling in clumps, and solves the problem that the lack of a feeding mechanism that meets the requirements for feeding Chinese herbal medicine slices restricts the realization of automated Chinese medicine dispensing.

[0004] However, in actual operation, the above device crushes the agglomerated materials during the discharging process, which has two disadvantages. First, the agglomerated materials are easily over-crushed due to excessive mechanical pressure. Second, if the agglomerated materials appear at the discharging end, it will be difficult to discharge the materials, resulting in jamming during the spiral conveyor.

[0005] Therefore, it is necessary to provide a spiral feeding device and a feeding method for Chinese herbal medicine slices to solve the above-mentioned technical problems. Summary of the invention

[0006] The invention provides a spiral feeding device and a feeding method for Chinese herbal medicine slices, which solves the technical problem in the related art that when agglomerated materials appear at the feeding end, the spiral conveyor is easily jammed, thus affecting the feeding.

[0007] In order to solve the above technical problems, the present invention provides a spiral feeding device and feeding method for Chinese herbal medicine slices, comprising a bottom plate and a driving mechanism;

[0008] A positioning frame is fixedly arranged above the bottom plate, a discharging barrel is fixedly arranged inside the positioning frame, a positioning plate is fixedly arranged at the left end of the discharging barrel, and a screw is installed inside the discharging barrel;

[0009] The transmission gear of the present invention is a gear which is engaged with the first and second gears and is connected with the gear of the first gear to form a gear train coupled to the transmission gear of the present invention, and the gear train is connected with the gear of the first gear to form a gear train coupled to the transmission gear of the present invention.

[0010] A pressing mechanism is installed above the discharging barrel, and the pressing mechanism includes a frame fixedly mounted on the upper surface of the discharging barrel, a mounting frame is installed on the inner wall of the frame, hoppers are fixedly mounted on both sides of the frame, and discharging ports are opened on the inner wall of the frame and on both sides of the mounting frame;

[0011] A half gear and a reciprocating ring are installed inside the installation frame, and the inner wall of the reciprocating ring is respectively fixed with a first rack and a second rack, and the outer wall of the reciprocating ring and located below the half gear is fixed with a lower pressure plate by bolts, and the inner wall of the frame and located inside the installation frame are provided with two limit grooves, and the back of the reciprocating ring is fixed with a limit plate adapted to the two limit grooves.

[0012] Preferably, the axis center of the first gear is rotatably connected to the mounting frame via a bearing, the axis center of the driving pulley is keyway-connected to the axis center of the screw, and the axis center of the driving pulley is rotatably connected to the positioning plate.

[0013] Preferably, the rotating rod is rotatably connected to the frame, the axis of the rotating rod is keyway-connected to the axis of the half gear, and the tooth surface of the half gear is mutually adapted to the first rack and the second rack.

[0014] Preferably, the two hoppers and the two discharge ports are interconnected, the two limit grooves penetrate the frame from top to bottom, the two limit plates and the two limit grooves are slidably connected, and the outer wall of the lower pressure plate fits against the inner wall of the frame.

[0015] Preferably, a spring rod is installed inside the frame and above the two discharge ports, a sealing plate is fixed to the bottom end of the spring rod, and baffles are fixed to the outer walls of the two sealing plates, wherein the two baffles are continuously in contact with the upper surface of the lower pressure plate.

[0016] Preferably, the two sealing plates are matched with the two discharge ports, the two sealing plates are slidably connected with the two discharge ports and the frame, and the top end of the spring rod is fixedly connected with the frame.

[0017] Preferably, it also includes a screening mechanism;

[0018] The front and rear sides of the discharging barrel are fixedly provided with limit frames, the bottom output shaft keyway of the double-headed motor is connected with a second ratchet, the outer wall of the second ratchet is meshedly connected with a second ratchet ring, and the axis of the second ratchet ring is fixedly provided with a cam;

[0019] The screening mechanism includes a movable screen plate slidably connected to the inside of the two limit frames, a collecting box is placed on the upper surface of the bottom plate and below the discharge barrel, two limit rings are fixedly provided on the upper surface of the collecting box, a first slide bar and a second slide bar are slidably connected inside the two limit rings, a first spring and a second spring are respectively sleeved on the outer walls of the first slide bar and the second slide bar and located on both sides of the collecting box, a guide wheel is installed at one end of the first slide bar, and a fixed screen plate is fixedly provided on the inner wall of the discharge barrel.

[0020] Preferably, the outer wall of the guide wheel fits with the outer wall of the cam, the first slide bar and the second slide bar are fixedly connected to the movable screen plate, and the cross-section of the first slide bar is a "Z"-shaped structure.

[0021] Preferably, the two ends of the first spring are fixedly connected to the first slide bar and the limiting ring on the left side of the two limiting rings, and the two ends of the second spring are fixedly connected to the second slide bar and the limiting ring on the right side of the two limiting rings.

[0022] Compared with the related art, the spiral feeding equipment and feeding method of Chinese herbal medicine slices provided by the present invention have the following beneficial effects:

[0023] Compared with the traditional rotary crushing method to break up the agglomerated Chinese herbal medicines, this case is based on the screw rotation conveying and is linked to a reciprocating ring with a fixed stroke to drive the lower pressure plate to rise and fall at a uniform speed to press the Chinese herbal medicines down. Below the lower pressure plate is a continuously rotating screw. Therefore, the Chinese herbal medicines above the screw will contact the rotating spiral edge when under pressure, ensuring stable and rapid transportation and avoiding the formation of spiral gaps. Secondly, if there are agglomerated Chinese herbal medicines, pressure is applied from above the Chinese herbal medicines. The rotating screw can break up the agglomerated Chinese herbal medicines layer by layer in a progressive manner, which can avoid excessive crushing, eliminate blockages, and ensure the integrity of the Chinese herbal medicines. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 the structures shown in these drawings without paying creative work.

[0025] Figure 1A schematic diagram of the best structure provided by the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the driving mechanism shown;

[0027] Figure 3 for Figure 2 The schematic diagram of the split structure of the driving mechanism shown;

[0028] Figure 4 for Figure 1 The schematic diagram of the cross-sectional structure of the discharge barrel shown;

[0029] Figure 5 for Figure 1 The schematic cross-sectional structure diagram of the pressing mechanism shown;

[0030] Figure 6 for Figure 5 The schematic diagram of the cross-sectional structure of the installation frame shown;

[0031] Figure 7 for Figure 6 The enlarged structural diagram of point A shown;

[0032] Figure 8 for Figure 6 The schematic diagram of the lower pressure plate descending working state shown;

[0033] Fig. 9 for Figure 6 The schematic diagram of the split structure of the lower pressing plate and the reciprocating ring is shown;

[0034] Fig.10 for Figure 1 The schematic diagram of the initial working state of the screening mechanism shown;

[0035] Fig.11 for Fig.10 The schematic diagram of the working state in which the cam rotates and drives the movable screen plate to move;

[0036] Fig.12 for Fig.11 The schematic diagram of the installation structure of the discharge cylinder and the fixed screen plate shown;

[0037] Fig.13 for Fig.10 The schematic diagram of the fixed sieve plate and the movable sieve plate in the state where the internal holes do not overlap;

[0038] Fig.14 for Fig.11 Schematic diagram of the overlapping state of the internal holes of the fixed sieve plate and the movable sieve plate shown.

[0039] Description of Figure Numbers:

[0040] 1. Bottom plate;

[0041] 2. driving mechanism, 21. mounting frame, 22. double-headed motor, 23. first ratchet, 24. first ratchet ring, 25. first gear, 26. second ratchet, 27. second ratchet ring, 28. cam, 29. second gear, 210. driving pulley, 211. driven pulley, 212. rotating rod, 213. belt;

[0042] 3. Pressing mechanism, 31. Frame, 32. Mounting frame, 33. Discharging port, 34. Spring rod, 35. Closing plate, 36. Baffle, 37. Half gear, 38. Reciprocating ring, 39. First rack, 310. Second rack, 311. Pressing plate, 312. Limiting groove, 313. Limiting plate;

[0043] 4. Hopper;

[0044] 5. Screening mechanism, 51. Limiting ring, 52. First slide bar, 53. Second slide bar, 54. Moving screen plate, 55. First spring, 56. Second spring, 57. Guide wheel, 58. Fixed screen plate;

[0045] 6. Positioning frame, 7. Discharging barrel, 8. Positioning plate, 9. Limiting frame, 10. Collecting box, 11. Screw. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The invention provides a spiral feeding device and a feeding method for Chinese herbal medicine slices.

[0048] First embodiment:

[0049] Please combine Figures 1 to 9 , a spiral feeding device and feeding method for Chinese herbal medicine pieces, comprising a bottom plate 1 and a driving mechanism 2;

[0050] A positioning frame 6 is fixedly arranged above the bottom plate 1, a discharging barrel 7 is fixedly arranged inside the positioning frame 6, a positioning plate 8 is fixedly arranged at the left end of the discharging barrel 7, and a screw 11 is installed inside the discharging barrel 7;

[0051] The driving mechanism 2 includes a mounting frame 21 mounted on the upper surface of the base plate 1, a double-headed motor 22 is installed inside the mounting frame 21 by bolts, a first ratchet 23 is connected to the top output shaft keyway of the double-headed motor 22, a first ratchet ring 24 is meshedly connected to the outer wall of the first ratchet 23, a first gear 25 is connected to the keyway at the bottom axis of the first ratchet ring 24, a second gear 29 is meshedly connected to one side of the first gear 25, a driving pulley 210 is connected to the keyway at the axis of the second gear 29, a driven pulley 211 is rotatably connected to the top of the positioning plate 8, a belt 213 is sleeved on the outer walls of the driving pulley 210 and the driven pulley 211, and a rotating rod 212 is connected to the keyway at the axis of the driven pulley 211;

[0052] Please combine Figure 2 and Figure 3 : When working, the user can start the double-headed motor 22 to drive the first ratchet 23 at the top to rotate counterclockwise. Due to the position restriction of the first ratchet ring 24, when the first ratchet 23 rotates counterclockwise, it can drive and control the first ratchet ring 24 to rotate counterclockwise, and the second ratchet ring 27 will synchronously drive the first gear 25 to rotate counterclockwise;

[0053] Please refer to 1. Figure 2 and Figure 4 : When the first gear 25 rotates counterclockwise, it will mesh with the second gear 29 to control the counterclockwise rotation. The second gear 29 synchronously controls the driving pulley 210 counterclockwise to make the screw 11 rotate inside the discharge barrel 7. The rotation of the screw 11 can continuously transport the Chinese herbal medicine pieces inside the discharge barrel 7;

[0054] At the same time, when the driving pulley 210 rotates counterclockwise, the transmission belt 213 can control the driven pulley 211 to make the rotating rod 212 rotate counterclockwise synchronously.

[0055] A pressing mechanism 3 is installed above the discharge barrel 7, and the pressing mechanism 3 includes a frame 31 fixedly mounted on the upper surface of the discharge barrel 7, a mounting frame 32 is mounted on the inner wall of the frame 31, a hopper 4 is fixedly mounted on both sides of the frame 31, and a discharge port 33 is opened on the inner wall of the frame 31 and on both sides of the mounting frame 32;

[0056] A half gear 37 and a reciprocating ring 38 are installed inside the installation frame 32, and the inner wall of the reciprocating ring 38 is respectively fixed with a first rack 39 and a second rack 310, and the outer wall of the reciprocating ring 38 and located below the half gear 37 is fixed with a lower pressure plate 311 by bolts, and the inner wall of the frame 31 and located inside the installation frame 32 are provided with two limit grooves 312, and the back of the reciprocating ring 38 is fixed with a limit plate 313 adapted to the two limit grooves 312.

[0057] See also Figure 5 : When discharging Chinese herbal medicine pieces, they need to be fed from the hoppers 4 on both sides and fall into the frame 31 through the discharge port 33;

[0058] See also Figure 6 and Figure 8 When the rotating rod 212 rotates counterclockwise, it will synchronously drive the half gear 37 to rotate counterclockwise. The half gear 37 will first drive the tooth surface to mesh and rotate to control the first rack 39 to drive the reciprocating ring 38 to synchronously control the lower pressure plate 311 to descend and squeeze the Chinese herbal medicine pieces at the bottom of the frame 31 downward to get close to the rotating screw 11. Because the tooth surface of the half gear 37 is in contact with the first rack 39, there is no tooth surface facing the second rack 310. In this way, interference with the second rack 310 can be avoided. When the tooth surface of the half gear 37 rotates to the second rack 310, it will mesh and control the second rack 310 to control the reciprocating ring 38 to synchronously drive the lower pressure plate 311 to rise to the initial working state. In this way, the reciprocating ring 38 can be used to control the lifting of the lower pressure plate 311 to press the lowered Chinese herbal medicine pieces down to get close to the rotating screw 11.

[0059] The axis of the first gear 25 is rotatably connected to the mounting frame 21 through a bearing, the axis of the driving pulley 210 is keyed to the axis of the screw 11 , and the axis of the driving pulley 210 is rotatably connected to the positioning plate 8 .

[0060] Understandable: From Figure 5 It can be seen that since the half gear 37 and other components are all installed inside the mounting frame 32, the transmission components can be well protected;

[0061] Secondly, from Figure 4 It can be seen that due to the different diameters of the driving pulley 210 and the driven pulley 211, a speed difference is formed, and the rotation speed of the screw 11 is faster than that of the driven pulley 211, so that the conveying efficiency can be ensured while the Chinese herbal medicine pieces can be pressed down at a uniform speed;

[0062] from Figure 7 and Fig. 9 It can be seen that the reciprocating ring 38 slides inside the limiting groove 312 through the "T"-shaped limiting plate 313, so that the lifting and lowering of the reciprocating ring 38 can be ensured to be more stable and smooth, and derailment can also be avoided.

[0063] The rotating rod 212 is rotatably connected to the frame 31 , the axis of the rotating rod 212 is keyed to the axis of the half gear 37 , and the tooth surface of the half gear 37 is adapted to the first rack 39 and the second rack 310 .

[0064] The two hoppers 4 and the two discharge ports 33 are interconnected, the two limit grooves 312 penetrate the frame 31 from top to bottom, the two limit plates 313 and the two limit grooves 312 are slidably connected, and the outer wall of the lower pressure plate 311 fits with the inner wall of the frame 31.

[0065] This embodiment: Compared with the traditional rotary crushing method to break up the agglomerated Chinese herbal medicine slices, this case is based on the rotary conveying of the screw 11 and is linked to a reciprocating ring 38 with a fixed stroke to drive the lower pressure plate 311 to rise and fall at a uniform speed to press the Chinese herbal medicine slices down. Below the lower pressure plate 311 is the continuously rotating screw 11. Therefore, when the Chinese herbal medicine slices above the screw 11 are under pressure, they will contact the rotating spiral edge to ensure stable and rapid transportation and avoid the formation of spiral gaps. Secondly, if there are agglomerated Chinese herbal medicine slices, pressure is applied from above the Chinese herbal medicine slices. The rotating screw 11 can break up the agglomerated Chinese herbal medicine slices layer by layer in a progressive manner, which can avoid excessive crushing, eliminate blockage, and ensure the integrity of the Chinese herbal medicine slices.

[0066] Second embodiment:

[0067] See also Figure 1 and Fig. 9 A spring rod 34 is installed inside the frame 31 and above the two discharge ports 33. A sealing plate 35 is fixed to the bottom end of the spring rod 34. A baffle 36 is fixed to the outer wall of the two sealing plates 35. The two baffles 36 are continuously in contact with the upper surface of the lower pressure plate 311.

[0068] The two sealing plates 35 are matched with the two discharge ports 33 , and the two sealing plates 35 are slidably connected with the two discharge ports 33 and the frame 31 . The top end of the spring rod 34 is fixedly connected with the frame 31 .

[0069] See also Figure 6 : Since the baffle 36 is always above the lower pressing plate 311, the baffle 36 also moves with the movement of the lower pressing plate 311 during the lifting process of the lower pressing plate 311. During the rising process of the lower pressing plate 311, the baffle 36 will drive the sealing plate 35 to rise and open the discharge port 33. Therefore, when the lower pressing plate 311 rises, the Chinese herbal medicine slices can be smoothly lowered onto the screw 11.

[0070] See also Figure 8 : When the lower pressing plate 311 is pressed down, it will synchronously drive the baffle 36 to make the sealing plate 35 descend to block the discharge port 33, isolating the Chinese herbal medicine slices inside the hopper 4.

[0071] It can be understood that since the sealing plate 35 and the frame 31 are connected by the spring rod 34, it can be ensured that the sealing plate 35 can be stably raised and lowered.

[0072] This embodiment: by designing the downward pressure and feeding in a linked manner, material will be discharged only when the lower pressure plate 311 rises, and it will be blocked when it descends. This way of discharging material can be carried out in a quantitative manner, and subsequent discharging of material can be carried out only when all the Chinese herbal medicines inside the frame 31 are pressed down. Therefore, this design further ensures the smoothness of material discharging and avoids material blockage. Even if material blockage occurs, the location of the blockage will never occur at the screw 11, and the blockage will only exist in the hopper 4, so it is also convenient for users to check and repair the blockage.

[0073] Third embodiment:

[0074] See also Figure 2 , Figure 3 , Figures 10 to 14 , further comprising a screening mechanism 5;

[0075] The front and rear sides of the discharging barrel 7 are fixedly provided with a limit frame 9, the bottom output shaft keyway of the double-headed motor 22 is connected with a second ratchet 26, the outer wall of the second ratchet 26 is meshedly connected with a second ratchet ring 27, and the axis of the second ratchet ring 27 is fixedly provided with a cam 28;

[0076] The screening mechanism 5 includes a movable screen plate 54 slidably connected to the inside of the two limiting frames 9, a collecting box 10 is placed on the upper surface of the bottom plate 1 and below the discharge barrel 7, two limiting rings 51 are fixedly provided on the upper surface of the collecting box 10, a first slide bar 52 and a second slide bar 53 are slidably connected inside the two limiting rings 51, the outer walls of the first slide bar 52 and the second slide bar 53 and the two sides of the collecting box 10 are respectively sleeved with a first spring 55 and a second spring 56, a guide wheel 57 is installed at one end of the first slide bar 52, and a fixed screen plate 58 is fixedly provided on the inner wall of the discharge barrel 7.

[0077] See also Figure 2 and Figure 3 : Since the first ratchet 23 and the second ratchet 26 are arranged in different directions, the sawtooth direction of the second ratchet 26 is arranged in the opposite direction to the sawtooth direction of the first ratchet 23, when the double-headed motor 22 rotates counterclockwise, the second ratchet 26 will not affect the second ratchet ring 27, so the cam 28 and the entire screening mechanism 5 will not work during normal operation;

[0078] If the formula does not need to use small-volume Chinese herbal medicine slices, or if there is a lot of fine dust in the Chinese herbal medicine slices, the user needs to start the screening mechanism 5;

[0079] The double-headed motor 22 rotates clockwise, and when rotating clockwise, the first ratchet wheel 23 does not affect the first ratchet ring 24, so the screw 11 stops working;

[0080] When rotating clockwise, the second ratchet wheel 26 is controlled to engage with the second ratchet ring 27 to control the cam 28 to rotate 180 degrees.

[0081] See also Fig.10 and Fig.13 : In the initial state, the inner holes of the fixed sieve plate 58 and the movable sieve plate 54 are staggered to form blind holes, so the screw 11 will not form screened materials during the conveying process.

[0082] See also Fig.11 and Fig.14 : When the cam 28 rotates 180 degrees, it will drive the control guide wheel 57 to make the first slide bar 52 and the second slide bar 53 slide inside the limit ring 51. During the sliding process, the movable screen plate 54 will be controlled to slide. At this time, the first spring 55 is pushed to form compression, and the second spring 56 is extended;

[0083] When the movable sieve plate 54 moves, the holes inside will overlap with the holes inside the fixed sieve plate 58 to form a through hole state. In this way, when the screw 11 is rotating to feed the material, the fine dust and fine materials inside the Chinese herbal medicine pieces will pass through the closed holes into the collection box 10 to complete screening and collection.

[0084] The outer wall of the guide wheel 57 is in contact with the outer wall of the cam 28 . The first slide bar 52 and the second slide bar 53 are fixedly connected to the movable screen plate 54 . The cross section of the first slide bar 52 is a “Z”-shaped structure.

[0085] The two ends of the first spring 55 are fixedly connected to the first slide bar 52 and the limiting ring 51 on the left side of the two limiting rings 51 , and the two ends of the second spring 56 are fixedly connected to the second slide bar 53 and the limiting ring 51 on the right side of the two limiting rings 51 .

[0086] It can be understood that the movable screen plate 54 slides inside the limiting frame 9, so the horizontal freedom of the movable screen plate 54 can be limited, thereby ensuring the stability of the movable screen plate 54 when moving horizontally.

[0087] This embodiment: Compared with the traditional integrated discharge barrel 7 design, the double-headed motor 22 of this case will not affect the screw 11 during the clockwise rotation, and can drive the cam 28 to rotate and control the movement of the movable screen plate 54. After the movement, the holes in the movable screen plate 54 and the holes in the fixed screen plate 58 form overlapping through holes, which will activate the screening function. When the screw 11 rotates, the dust or fine materials inside the Chinese herbal medicines can be screened. Therefore, this design makes the device multifunctional, and the user can freely choose whether to screen according to the specific situation of the Chinese herbal medicines.

[0088] Please refer to Figures 1 to 14 The working principle of the spiral feeding equipment and feeding method of Chinese medicine pieces provided by the present invention is as follows:

[0089] Step S1: The user can start the double-headed motor 22 to drive the first ratchet wheel 23 at the top to rotate counterclockwise. Due to the position restriction of the first ratchet ring 24, when the first ratchet wheel 23 rotates counterclockwise, it can drive and control the first ratchet ring 24 to rotate counterclockwise, and the second ratchet ring 27 will synchronously drive the first gear 25 to rotate counterclockwise.

[0090] When the first gear 25 rotates counterclockwise, it will mesh with and control the second gear 29 to rotate counterclockwise. The second gear 29 synchronously controls the driving pulley 210 counterclockwise to rotate the screw 11 inside the discharge barrel 7. The rotation of the screw 11 can continuously transport the Chinese medicinal pieces inside the discharge barrel 7.

[0091] Step S2: When the rotating rod 212 rotates counterclockwise, it will synchronously drive the half gear 37 to rotate counterclockwise. The half gear 37 will first drive the tooth surface to mesh and rotate to control the first rack 39 to drive the reciprocating ring 38 to synchronously control the lower pressing plate 311 to descend and squeeze the Chinese herbal medicine pieces at the bottom of the frame 31 downward to approach the rotating screw 11. Because the tooth surface of the half gear 37 is in contact with the first rack 39, there is no tooth surface facing the second rack 310, so that interference with the second rack 310 can be avoided. When the tooth surface of the half gear 37 rotates to the second rack 310, it will mesh and control the second rack 310 to control the reciprocating ring 38 to synchronously drive the lower pressing plate 311 to rise to the initial working state, so that the lower pressing plate 311 can be controlled to rise and fall by the up and down reciprocating movement of the reciprocating ring 38 to press the lowered Chinese herbal medicine pieces down to approach the rotating screw 11;

[0092] Step S3: When the lower pressure plate 311 is being lifted or lowered, the baffle plate 36 also moves along with the movement of the lower pressure plate 311. When the lower pressure plate 311 is being lifted or lowered, the baffle plate 36 will be driven to control the sealing plate 35 to rise and open the discharge port 33. Therefore, when the lower pressure plate 311 is lifted or lowered, the Chinese herbal medicine slices can be smoothly lowered onto the screw 11. When the lower pressure plate 311 is being pressed down, the baffle plate 36 will be driven simultaneously to make the sealing plate 35 descend to block the discharge port 33, thereby isolating the Chinese herbal medicine slices inside the hopper 4.

[0093] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A spiral feeding device and a feeding method for Chinese herbal medicine slices, characterized in that: including a base plate and a driving mechanism; A positioning frame is fixedly arranged above the bottom plate, a discharging barrel is fixedly arranged inside the positioning frame, a positioning plate is fixedly arranged at the left end of the discharging barrel, and a screw is installed inside the discharging barrel; The transmission gear of the present invention is a gear which is engaged with the first and second gears and is connected with the gear of the first gear to form a gear train coupled to the transmission gear of the present invention, and the gear train is connected with the gear of the first gear to form a gear train coupled to the transmission gear of the present invention. A pressing mechanism is installed above the discharging barrel, and the pressing mechanism includes a frame fixedly mounted on the upper surface of the discharging barrel, a mounting frame is installed on the inner wall of the frame, hoppers are fixedly mounted on both sides of the frame, and discharging ports are opened on the inner wall of the frame and on both sides of the mounting frame; A half gear and a reciprocating ring are installed inside the installation frame, and the inner wall of the reciprocating ring is respectively fixed with a first rack and a second rack, and the outer wall of the reciprocating ring and located below the half gear is fixed with a lower pressure plate by bolts, and the inner wall of the frame and located inside the installation frame are provided with two limit grooves, and the back of the reciprocating ring is fixed with a limit plate adapted to the two limit grooves.

2. The Chinese medicine slice spiral feeding equipment and feeding method according to claim 1, characterized in that: The axis center of the first gear is rotatably connected to the mounting frame through a bearing, the axis center of the driving pulley is keyway-connected to the axis center of the screw, and the axis center of the driving pulley is rotatably connected to the positioning plate.

3. The Chinese medicine slice spiral feeding equipment and feeding method according to claim 1, characterized in that: The rotating rod is rotatably connected to the frame, the axis of the rotating rod is key-connected to the axis of the half gear, and the tooth surface of the half gear is mutually adapted to the first rack and the second rack.

4. The Chinese medicine slice spiral feeding equipment and feeding method according to claim 1, characterized in that: The two hoppers and the two discharge ports are interconnected, the two limit grooves penetrate the frame from top to bottom, the two limit plates and the two limit grooves are slidably connected, and the outer wall of the lower pressure plate fits with the inner wall of the frame.

5. The Chinese medicine slice spiral feeding equipment and feeding method according to claim 1, characterized in that: A spring rod is installed inside the frame and above the two discharge ports, a sealing plate is fixed to the bottom end of the spring rod, and baffles are fixed to the outer walls of the two sealing plates, wherein the two baffles continuously fit the upper surface of the lower pressure plate.

6. The Chinese medicine slice spiral feeding equipment and feeding method according to claim 5, characterized in that: The two sealing plates are matched with the two discharge ports, the two sealing plates are slidably connected with the two discharge ports and the frame, and the top end of the spring rod is fixedly connected with the frame.

7. The Chinese medicine slice spiral feeding equipment and feeding method according to claim 1, characterized in that: Also includes a screening mechanism; The front and rear sides of the discharging barrel are fixedly provided with limit frames, the bottom output shaft keyway of the double-headed motor is connected with a second ratchet, the outer wall of the second ratchet is meshedly connected with a second ratchet ring, and the axis of the second ratchet ring is fixedly provided with a cam; The screening mechanism includes a movable screen plate slidably connected to the inside of the two limit frames, a collecting box is placed on the upper surface of the bottom plate and below the discharge barrel, two limit rings are fixedly provided on the upper surface of the collecting box, a first slide bar and a second slide bar are slidably connected inside the two limit rings, a first spring and a second spring are respectively sleeved on the outer walls of the first slide bar and the second slide bar and located on both sides of the collecting box, a guide wheel is installed at one end of the first slide bar, and a fixed screen plate is fixedly provided on the inner wall of the discharge barrel.

8. The spiral feeding equipment and method for Chinese herbal medicine slices according to claim 7, characterized in that: The outer wall of the guide wheel fits with the outer wall of the cam, the first slide bar and the second slide bar are fixedly connected to the movable screen plate, and the cross-section of the first slide bar is a "Z"-shaped structure.

9. The Chinese medicine slice spiral feeding equipment and feeding method according to claim 7, characterized in that: The two ends of the first spring are fixedly connected to the first slide bar and the limiting ring on the left side of the two limiting rings, and the two ends of the second spring are fixedly connected to the second slide bar and the limiting ring on the right side of the two limiting rings.

10. A spiral feeding method for Chinese herbal medicine slices, characterized in that: The Chinese medicine slice spiral feeding method is used for the Chinese medicine slice spiral feeding equipment according to any one of claims 1 to 9, comprising the following steps: Step S1: preparing Chinese herbal medicine pieces; When discharging Chinese herbal medicines, they need to be put into the hoppers on both sides and fall into the frame through the discharge port; Step S2: spiral conveying of Chinese herbal medicine pieces; The double-headed motor is started to drive the first ratchet wheel at the top to rotate counterclockwise. Due to the clamping limit of the first ratchet ring, when the first ratchet wheel rotates counterclockwise, it can drive and control the first ratchet ring to rotate counterclockwise, and the second ratchet ring will synchronously drive the first gear to rotate counterclockwise. When the first gear rotates counterclockwise, it will mesh and control the second gear to rotate counterclockwise. The second gear synchronously controls the driving pulley counterclockwise to make the screw rotate inside the discharge barrel. The Chinese herbal medicine pieces inside the discharge barrel can be continuously transported through the rotation of the screw. Step S3: downward pressure during the transportation of Chinese herbal medicine pieces; When the rotating rod rotates counterclockwise, it will synchronously drive the half gear to rotate counterclockwise. The half gear will first drive the tooth surface to engage and rotate to control the first rack to drive the reciprocating ring to synchronously control the lower pressure plate to descend and squeeze the Chinese herbal medicine pieces at the bottom of the frame downward and close to the rotating screw. Because the tooth surface of the half gear contacts the first rack, there is no tooth surface facing the second rack. In this way, interference with the second rack can be avoided. When the tooth surface of the half gear rotates to the second rack, it will engage and control the second rack to control the reciprocating ring to synchronously drive the lower pressure plate to rise to the initial working state. In this way, the up and down reciprocating movement of the reciprocating ring can be used to control the lifting of the lower pressure plate to press the lowered Chinese herbal medicine pieces down and close to the rotating screw.

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