Device for automatically weighing pills in batches

Abstract

The invention discloses an automatic pill batch weighing device, which relates to the technical field of medicine production equipment and comprises a bottom plate, a turntable, a first fixed cylinder, a second fixed cylinder, a mounting plate, a horizontal mounting plate, a conveyor belt, a vertical mounting plate, an operating mechanism, a batch feeding mechanism, a rotary screening mechanism, a receiving mechanism and a quantitative delivery mechanism, the rotary table is driven by the receiving mechanism to rotate, the receiving mechanism is driven by the operating mechanism to work, the rotary table drives the quantitative delivery mechanism to work through rotation, and the rotary screening mechanism is driven by the batch feeding mechanism to work. And along with the rotation of the screening mechanism, the pills with overlarge sizes can be isolated and screened in advance, the quantitative delivery mechanism can determine the weight of the screened pills through a pressure sensor, and the weighed pills are conveyed to a receiving mechanism below through a set threshold value.

Description

Technical Field

[0001] The invention relates to the technical field of medicine production equipment, and in particular to an automatic pill batch weighing device. Background Art

[0002] Medicines can be presented in many forms, including liquid medicines, tablets, pills, etc. Before these medicines are produced as finished products, they require strict quality control, including screening of appearance, dosage, and quality, so as to ensure the safety of drug production.

[0003] In the pill production process, pills must undergo strict quality testing from the assembly line to packaging. Pills are produced in batches, and each batch of pills is divided into multiple medicine bottles before packaging and packaging. In order to ensure that the quality of the pills entering each medicine bottle is constant, the pills need to be weighed. However, the number of pills produced in batches is too large, and due to their spherical surface, it is not easy to put them directly on an electronic scale for testing. Therefore, they are usually inspected manually, which is time-consuming and cannot be guaranteed to be absolutely accurate.

[0004] In order to solve the above problems, a pill batch automatic weighing device is proposed. Summary of the invention

[0005] In view of the above problems, the present invention provides an automatic weighing device for pills in batches, which solves the problem that pills are produced in batches, and each batch of pills is divided into multiple medicine bottles before packaging and packaging. In order to ensure that the quality of the pills entering each medicine bottle is constant, the pills need to be weighed, but the number of pills produced in batches is too large, and due to their spherical surface, it is difficult to put them directly on an electronic scale for detection, so they are usually inspected manually by random inspection, which is time-consuming and cannot guarantee absolute accuracy.

[0006] The technical solution adopted by the present invention is: comprising a bottom plate, a rotating disk, a first fixed cylinder, a second fixed cylinder, a mounting plate, a horizontal mounting plate, a conveyor belt, a vertical mounting plate, a collecting box, an operating mechanism, a batch feeding mechanism, a rotating screening mechanism, a receiving mechanism, and a quantitative delivery mechanism; A first fixing tube is fixedly provided at the upper end of the bottom plate through a connecting piece, and a first gap is left between the upper end of the bottom plate and the bottom wall of the first fixing tube; A turntable is rotatably provided at the upper end of the bottom plate, and the turntable is driven to rotate by a receiving mechanism; An operating mechanism is provided on one side of the rotating disk, the receiving mechanism is driven to work by the operating mechanism, and the rotating disk and the operating mechanism are both provided in the first gap; A quantitative delivery mechanism is provided in the first fixed cylinder, and the rotary disc drives the quantitative delivery mechanism to work by rotating; The upper end of the first fixed cylinder is connected to a second fixed cylinder, and a rotating screening mechanism is arranged in the second fixed cylinder; Two horizontal mounting plates are provided at the upper end of the second fixing cylinder, and a second gap is left between the two horizontal mounting plates; The upper ends of the two horizontal mounting plates are fixedly provided with a same mounting plate, a batch feeding mechanism is provided below the mounting plate, and the batch feeding mechanism is arranged in the second gap; The rotary screening mechanism is driven to work by the batch feeding mechanism; A collection box is detachably provided at the upper end of the installation plate, and the collection box is connected to the installation plate; Vertical mounting plates are respectively provided on the outside of the two sides of the collection box, and the lower ends of the two vertical mounting plates are fixedly arranged on the upper end of the mounting plate; A conveyor belt is movably arranged between the upper ends of the two vertical mounting plates, and the two ends of the pulley in the conveyor belt close to the collecting box are rotatably arranged on the inner side walls of the two vertical mounting plates respectively; The belt pulley close to the collecting box drives the batch feeding mechanism to work by rotating.

[0007] Further, the batch feeding mechanism comprises a fixed cylinder, a rotating cylinder, a connecting plate, a first bevel gear, a second bevel gear, a first sprocket, and a second sprocket; The upper end of the second fixed cylinder is connected to a fixed cylinder body, and the fixed cylinder body is arranged in the second gap; The lower end of the collecting box is connected with a conduit, the mounting plate is provided with a first rectangular through slot, and the conduit passes through the first rectangular through slot and is connected with the upper end of the fixed cylinder; A same connecting plate is fixedly arranged between the two horizontal mounting plates, and the connecting plate is arranged at the rear side of the fixed cylinder; A rotating cylinder is rotatably arranged in the fixed cylinder, a first end of a first rotating shaft is fixedly arranged at the center of the rear wall of the rotating cylinder, and a second end of the first rotating shaft is rotatably arranged to penetrate the rear wall of the fixed cylinder and the connecting plate respectively; The second end of the first rotating shaft rotates through the connecting plate and is fixed with a first bevel gear, and one side of the first bevel gear is meshed with a second bevel gear; The second bevel gear is rotatably mounted on the inner wall of one of the horizontal mounting plates via a second rotating shaft; The second rotating shaft rotates and penetrates the horizontal mounting plate close to it, and a second sprocket is fixedly provided thereon; A first sprocket is rotatably provided on the outer wall of the vertical mounting plate near the second sprocket via a third rotating shaft, the third rotating shaft is rotatably penetrated through the two vertical mounting plates respectively, and the third rotating shaft is fixedly connected to the outer wall of the pulley near the collecting box; The first sprocket and the second sprocket are sleeved and meshed with the same first chain on their outer sides; Arc grooves for rotating and transporting pills are respectively provided on both sides of the rotating cylinder; The first rotating shaft drives the rotating screening mechanism to work by rotating.

[0008] Further, the rotating screening mechanism comprises a third bevel gear, a fourth bevel gear, and a push plate; A third bevel gear is fixedly mounted on the middle end of the first rotating shaft, and a fourth bevel gear is meshedly mounted below the third bevel gear. The fourth bevel gear is rotatably arranged at the center of the upper end of the second fixed cylinder via the eighth rotating shaft; The eighth rotating shaft rotates through the top wall of the second fixed cylinder and is provided with two push plates; A plurality of first circular holes for screening pills are provided on one side of the bottom wall of the second fixed cylinder; The two push plates are respectively in detachable contact with the upper ends of the first circular holes.

[0009] Furthermore, the quantitative delivery mechanism comprises a guide rail, a sliding barrel, a medicine outlet pipe, a partition, a return spring, a pressure sensor, and a display screen; An annular mounting platform is provided on the top wall of the first fixed tube, and the second fixed tube is fixedly arranged on the upper end of the annular mounting platform; A plurality of guide rails are provided at equal intervals between the annular mounting platform and the bottom wall of the first fixed cylinder; The sliding sleeves on the plurality of guide rails are provided with a same sliding barrel; The outer sides of the plurality of guide rails are sleeved with return springs, and the plurality of return springs are respectively fixedly connected to the lower end of the bottom wall of the sliding barrel and the upper end of the bottom wall of the first fixed cylinder; A plurality of the return springs are electrically connected to a common pressure sensor, and the pressure sensor is arranged between the bottom wall of the sliding barrel and the bottom wall of the first fixed barrel; The outer side of the pressure sensor is electrically connected to a display screen through a plurality of wires, the display screen is arranged on the outer side wall of the first fixed tube, and the plurality of wires penetrate the side wall of the first fixed tube; The inner wall of the sliding barrel is a sloped inner wall; A second circular hole is provided at the center of the sliding barrel, and partitions are provided on both sides of the second circular hole, and the two partitions are respectively fixed on the inner wall of the slope; The slope inner wall located on the same side of the two partitions is arranged below the first circular holes; A medicine outlet pipe is rotatably provided in the second circular hole, the medicine outlet pipe is slidably provided between the two partitions, and the top wall of the medicine outlet pipe is rotatably provided at the center position of the lower end of the bottom wall of the second fixed cylinder through a fourth rotating shaft; The lower end of the medicine outlet tube is rotatably connected to the center of the bottom wall of the first fixed cylinder; A medicine inlet hole is provided on the side wall of the medicine outlet pipe, and the medicine inlet hole is movably arranged above the bottom wall of the first fixed cylinder; The medicine discharging tube is driven to rotate by the receiving mechanism.

[0010] Furthermore, a sliding plate for controlling the amount of medicine fed is slidably provided in the medicine feeding hole.

[0011] Further, the receiving mechanism comprises an outer gear ring, a spur gear, and a receiving barrel; An outer toothed ring is fixedly sleeved on the outer wall of the lower end of the medicine outlet tube, and the outer toothed ring is arranged below the bottom wall of the first fixed cylinder; A spur gear is meshed with one side of the outer gear ring, and the spur gear is rotatably arranged on the lower end of the bottom wall of the first fixed cylinder through a fifth rotating shaft, and the fifth rotating shaft is fixedly arranged with the spur gear; The outer gear ring and the spur gear are both arranged in the first gap; The fifth rotating shaft passes through the spur gear and is fixedly connected to the upper center of the rotating disk; A plurality of receiving barrels are provided at equal intervals at the eccentric position of the upper end of the rotating disk, and the receiving barrels are respectively detachably arranged below the medicine outlet pipe; A sixth rotating shaft is fixedly provided at the center of the lower end of the rotating disk; The lower end of the sixth rotating shaft is rotatably arranged on the upper end of the bottom plate; The sixth rotating shaft is driven to rotate by the operating mechanism.

[0012] Further, the operating mechanism comprises a third sprocket, a fourth sprocket, and a crank; The fixed sleeve at the middle end of the sixth rotating shaft is provided with a third sprocket; A fourth sprocket is provided on one side of the third sprocket, and the fourth sprocket is rotatably arranged on the upper end of the bottom plate via a seventh rotating shaft; A crank is fixedly provided at the upper end of the seventh rotating shaft; The third sprocket and the fourth sprocket are sleeved and meshed with the same second chain on their outer sides.

[0013] Furthermore, inclined platforms are respectively provided on both sides of the inner wall of the collecting box, and the conduit is respectively provided between the two inclined platforms.

[0014] Advantages of the present invention: The batch feeding mechanism of the present invention can put the medicines into the second fixed cylinder in batches, and with the rotating screening mechanism, the oversized pills can be isolated and screened in advance. The quantitative delivery mechanism of the present invention can determine the weight of the screened pills through a pressure sensor, and convey the weighed pills to the receiving mechanism below according to the set threshold value. The receiving mechanism can collect pills of equal mass to facilitate subsequent packaging work.

[0015] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the collection box of the present invention; Figure 3 It is a schematic diagram of the working principle of the batch feeding mechanism of the present invention; Figure 4 It is a schematic diagram of the bottom structure of the quantitative delivery mechanism of the present invention; Figure 5 It is a schematic diagram of the working principle of the receiving mechanism of the present invention; Figure 6 It is a partial schematic diagram of the upper part of the overall structure of the present invention; Figure 7 It is a schematic diagram of the power transmission of the rotary screening mechanism of the present invention; Figure 8 It is a schematic diagram of the bottom structure of the second fixed cylinder of the present invention; Fig. 9 It is a schematic diagram of the working principle of the rotary screening mechanism of the present invention; Fig.10 It is a schematic diagram of the internal structure of the first fixed cylinder of the present invention; Fig.11 This is a schematic diagram of the installation of the medicine discharging pipe and the sliding barrel of the present invention; Fig.12 It is a schematic diagram of the working principle of the quantitative delivery mechanism of the present invention; Fig.13 It is a schematic diagram of the overall structure of the sliding barrel of the present invention; Fig.14It is a schematic diagram of the installation relationship between the second fixing cylinder and the installation plate of the present invention.

[0018] Reference numerals: 1 is a bottom plate, 2 is a rotating disc, 3 is a first fixed cylinder, 4 is a second fixed cylinder, 5 is a horizontal mounting plate, 6 is a conveyor belt, 7 is a vertical mounting plate, 8 is a collecting box, 9 is a first sprocket, 10 is a second bevel gear. 11 is a first bevel gear, 12 is a receiving barrel, 13 is a spur gear, 14 is a crank handle, 15 is a fourth sprocket, 16 is a mounting plate, 17 is a fixed cylinder, 18 is a rotating cylinder, 19 is an outer gear ring, 20 is a medicine outlet tube, 21 is a third sprocket, 22 is a second sprocket, 23 is a push plate, 24 is a guide rail, 25 is a sliding barrel, 26 is a return spring, 27 is a third bevel gear, 28 is a fourth bevel gear; 301 is a ring-shaped mounting platform; 401 is a first circular hole; 501 is a connecting plate; 801 is a catheter, 802 is a ramp; 1601 is a first rectangular through groove; 1801 is an arc groove; 2001 is the medicine inlet hole; 2501 is a partition, and 2502 is a second circular hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] In the description of the invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0021] refer to Figures 1 to 14 , a pill batch automatic weighing device, comprising a bottom plate 1, a rotating disk 2, a first fixed cylinder 3, a second fixed cylinder 4, a mounting plate 16, a horizontal mounting plate 5, a conveyor belt 6, a vertical mounting plate 7, a collecting box 8, an operating mechanism, a batch feeding mechanism, a rotating screening mechanism, a receiving mechanism, and a quantitative delivery mechanism; The upper end of the bottom plate 1 is fixedly mounted with a first fixed cylinder 3 through a connecting piece, and a first gap is left between the upper end of the bottom plate 1 and the bottom wall of the first fixed cylinder 3. The bottom plate 1 is a supporting component of the device, and the first fixed cylinder 3 is used to install a quantitative delivery mechanism described later; A turntable 2 is rotatably mounted on the upper end of the bottom plate 1. The turntable 2 is driven to rotate by a receiving mechanism. The turntable 2 is used to mount a receiving barrel 12 described later. The weighed pills can be received by rotating the turntable 2. An operating mechanism is installed on one side of the turntable 2, and the receiving mechanism is driven to work by the operating mechanism. The turntable 2 and the operating mechanism are both arranged in the first gap; A quantitative delivery mechanism is installed in the first fixed cylinder 3. The turntable 2 drives the quantitative delivery mechanism to work by rotating. The quantitative delivery mechanism is used to deliver a number of pills in batches according to the preset threshold value and other qualities; The upper end of the first fixed cylinder 3 is connected to the second fixed cylinder 4, and a rotating screening mechanism is installed in the second fixed cylinder 4. The second fixed cylinder 4 is used to initially receive the pills. The pills will be put into the first fixed cylinder 3 at the lower side through the rotating screening mechanism to weigh the pills of composite size. Two horizontal mounting plates 5 are mounted on the upper end of the second fixed cylinder 4, and a second gap is left between the two horizontal mounting plates 5; The upper ends of the two horizontal mounting plates 5 are fixedly mounted with a same mounting plate 16, and a batch feeding mechanism is mounted below the mounting plate 16. The batch feeding mechanism is arranged in the second gap, and the mounting plate 16 is used to mount the batch feeding mechanism and the collection box 8 described later; The rotating screening mechanism is driven by the batch feeding mechanism; A collecting box 8 is detachably mounted on the upper end of the mounting plate 16. The collecting box 8 is connected to the mounting plate 16 and is used to receive the produced pills. Vertical mounting plates 7 are respectively installed on the outside of both sides of the collection box 8, and the lower ends of the two vertical mounting plates 7 are fixed to the upper end of the mounting plate 16; A conveyor belt 6 is movably installed between the upper ends of the two vertical mounting plates 7. The two ends of the pulley in the conveyor belt 6 near the collecting box 8 are rotatably arranged on the inner side walls of the two vertical mounting plates 7. The conveyor belt 6 transports the processed pills to the collecting box 8, and the pills are put into the collecting box 8 in batches through the batching mechanism at the lower side of the collecting box 8. The pulley near the collecting box 8 drives the batch feeding mechanism to work by rotation.

[0022] The batch feeding mechanism comprises a fixed cylinder 17, a rotating cylinder 18, a connecting plate 501, a first bevel gear 11, a second bevel gear 10, a first sprocket 9, and a second sprocket 22; The upper end of the second fixed cylinder 4 is connected to a fixed cylinder body 17, and the fixed cylinder body 17 is arranged in the second gap; The lower end of the collecting box 8 is connected to a conduit 801, and the mounting plate 16 is provided with a first rectangular through slot 1601. The conduit 801 passes through the first rectangular through slot 1601 and is connected to the upper end of the fixed cylinder 17. A connecting plate 501 is fixedly installed between the two horizontal mounting plates 5, and the connecting plate 501 is arranged at the rear side of the fixed cylinder 17; The rotating cylinder 18 is rotatably installed in the fixed cylinder 17, the first end of the first rotating shaft is fixedly installed at the center of the rear wall of the rotating cylinder 18, and the second end of the first rotating shaft is rotatably penetrated by the rear wall of the fixed cylinder 17 and the connecting plate 501 respectively; The second end of the first rotating shaft rotates through the connecting plate 501 to be fixedly mounted with a first bevel gear 11, and one side of the first bevel gear 11 is meshedly mounted with a second bevel gear 10; The second bevel gear 10 is rotatably mounted on the inner wall of one of the horizontal mounting plates 5 via a second rotating shaft; The second rotating shaft rotates and penetrates the horizontal mounting plate 5 close to it, and the second sprocket 22 is fixedly mounted thereon; A first sprocket 9 is rotatably mounted on the outer wall of the vertical mounting plate 7 near the second sprocket 22 via a third rotating shaft, and the third rotating shaft is rotatably arranged through the two vertical mounting plates 7 respectively, and the third rotating shaft is fixedly connected to the outer wall of the pulley near the collection box 8; The first sprocket 9 and the second sprocket 22 are sleeved and meshed with the same first chain; Arc grooves 1801 for rotating and transporting pills are respectively provided on both sides of the rotating cylinder 18; The first rotating shaft drives the rotating screening mechanism to work by rotating. During the operation of the conveyor belt 6, the two pulleys will start to rotate. During the rotation, the pulley close to the rotating cylinder 18 drives the first sprocket 9 coaxially fixed therewith to start rotating. The first sprocket 9 transmits the rotation driving force to the second sprocket 22 through the first chain, so that the second sprocket 22 starts to rotate. During the rotation, the second sprocket 22 drives the second bevel gear 10 coaxially installed therewith to start rotating. The second bevel gear 10 drives the first bevel gear 11 meshing therewith to start rotating by rotating. The first bevel gear 11 rotates During the movement, the first rotating shaft starts to rotate, and the rotating cylinder 18 coaxially fixed with the first rotating shaft starts to rotate inside the fixed cylinder 17. The pills in the collecting box 8 connected to the fixed cylinder 17 will enter the fixed cylinder 17 through the conduit 801. After entering the fixed cylinder 17, these pills will sink into the arc groove 1801 on the side wall of the rotating cylinder 18, and be transported to the second fixed cylinder 4 below as the rotating cylinder 18 rotates. Since the size of the arc groove 1801 is fixed, the number of pills transported to the second fixed cylinder 4 each time is also fixed.

[0023] The rotating screening mechanism comprises a third bevel gear 27, a fourth bevel gear 28, and a push plate 23; A third bevel gear 27 is fixedly mounted on the middle end of the first rotating shaft, and a fourth bevel gear 28 is meshingly mounted below the third bevel gear 27; The fourth bevel gear 28 is rotatably arranged at the center of the upper end of the second fixed cylinder 4 via the eighth rotating shaft; The eighth rotating shaft rotates through the top wall of the second fixed cylinder 4 and is provided with two push plates 23; A plurality of first circular holes 401 for screening pills are installed on one side of the bottom wall of the second fixed cylinder 4; The two push plates 23 are respectively in detachable contact with the upper ends of the first circular holes 401. During the rotation of the first rotating shaft, the third bevel gear 27 coaxially fixed therewith is also driven, so that the third bevel gear 27 starts to rotate. During the rotation, the third bevel gear 27 drives the fourth bevel gear 28 meshing therewith. The fourth bevel gear 28 starts to rotate and drives the eighth rotating shaft to start rotating. During the rotation, the eighth rotating shaft drives the push plate 23 to start rotating. During the rotation, the push plate 23 rotates and moves the pills that fall off from the top. After being moved, the pills will fall from the first circular holes 401 into the first fixed cylinder 3 below, while the oversized pills will be intercepted in the second fixed cylinder 4. The side wall of the second fixed cylinder 4 is provided with a lockable opening and closing door. When it is necessary to clean the inside of the second fixed cylinder 4, just open the opening and closing door.

[0024] The quantitative delivery mechanism includes a guide rail 24, a sliding barrel 25, a medicine outlet pipe 20, a partition 2501, a return spring 26, a pressure sensor, and a display screen; An annular mounting platform 301 is installed on the top wall of the first fixed cylinder 3, and the second fixed cylinder 4 is fixedly arranged on the upper end of the annular mounting platform 301; A plurality of guide rails 24 are installed at equal intervals between the annular mounting platform 301 and the bottom wall of the first fixed cylinder 3; The same sliding barrel 25 is slidably mounted on a plurality of guide rails 24; The outer sides of the plurality of guide rails 24 are each provided with a return spring 26, and the plurality of return springs 26 are respectively fixedly connected to the lower end of the bottom wall of the sliding barrel 25 and the upper end of the bottom wall of the first fixed barrel 3; The plurality of return springs 26 are electrically connected to a same pressure sensor, and the pressure sensor is disposed between the bottom wall of the sliding barrel 25 and the bottom wall of the first fixed barrel 3; The outside of the pressure sensor is electrically connected to a display screen through a plurality of wires, the display screen is arranged on the outer side wall of the first fixed tube 3, and the plurality of wires penetrate the side wall of the first fixed tube 3; The inner wall of the sliding barrel 25 is a sloped inner wall; A second circular hole 2502 is provided at the center of the sliding barrel 25, and partitions 2501 are respectively installed on both sides of the second circular hole 2502, and the two partitions 2501 are respectively fixed on the inner wall of the slope; The slope inner wall located on the same side of the two partitions 2501 is arranged below the plurality of first circular holes 401; A medicine outlet pipe 20 is rotatably installed in the second circular hole 2502, and the medicine outlet pipe 20 is slidably installed between the two partitions 2501. The top wall of the medicine outlet pipe 20 is rotatably arranged at the center position of the lower end of the bottom wall of the second fixed cylinder 4 through the fourth rotating shaft; The lower end of the medicine outlet tube 20 is rotatably connected to the bottom wall of the first fixed tube 3 at the center of the circle. A medicine inlet hole 2001 is provided on the side wall of the medicine outlet pipe 20, and the medicine inlet hole 2001 is movably provided above the bottom wall of the first fixed cylinder 3; The medicine outlet pipe 20 is driven to rotate by the receiving mechanism, and the pills falling out of the above-mentioned plurality of first circular holes 401 will all be concentrated on one side of the partition 2501, while the side of the medicine outlet pipe 20 with the medicine inlet hole 2001 is at the other side of the pill concentration area. As the pills continue to enter, the sliding barrel 25 begins to slide down due to the effect of gravity, and begins to compress the reset spring 26. The reset spring 26 begins to deform and transmits the value to the display screen through the pressure sensor. The user can determine the mass of the plurality of pills in the sliding barrel 25 by adjusting the threshold of the pressure sensor. When the mass of the pills is outside the threshold range, the medicine outlet pipe 20 does not rotate. When it is within the threshold, the medicine outlet pipe 20 starts to rotate one circle. Since the inner wall of the sliding barrel 25 is a sloped type, the pills in the sliding barrel 25 are all concentrated and piled around the outer wall of the medicine outlet pipe 20. When the medicine outlet pipe 20 starts to rotate until the medicine inlet hole 2001 is aligned with the pill area, the pills in the sliding barrel 25 begin to gradually fall into the medicine inlet hole 2001. During the process of the pills falling into the medicine inlet 2001, as the number of pills in the sliding barrel 25 decreases and the gravity becomes lighter, the sliding barrel 25 begins to gradually rise under the reset of the reset spring 26, and the overlapping area between the medicine inlet 2001 and the sliding barrel 25 becomes smaller and smaller. After the medicine outlet tube 20 rotates for one circle, all the pills originally located in the sliding barrel 25 fall from the medicine inlet 2001 into the receiving barrel 12 described later, and the sliding barrel 25 is reset again, thereby starting to receive and measure the mass of the next batch of pills. During the sliding process of the sliding barrel 25, the guide rail 24 determines the sliding trajectory of the sliding barrel 25 and ensures that it will not fall off cheaply during the sliding process. When the mass of the medicine inside the sliding barrel 25 is greater than or less than the set threshold range, since the medicine outlet tube 20 will not rotate under the setting at this time, it is necessary to manually rotate the medicine outlet tube 20 to make the pills with a mass outside the threshold range fall off from the medicine inlet 2001, and collect these pills to reconstitute the mass within the composite threshold range, and then package them separately.

[0025] A sliding plate for controlling the amount of medicine fed is slidably installed in the medicine feed hole 2001. Its purpose is to control the size of the medicine feed hole 2001 so as to meet the adjustment of the pill quality threshold. When a larger pill mass is required, the sliding plate can be controlled to make the medicine feed hole 2001 larger. When a smaller pill mass is required, the sliding plate can be controlled to make the medicine feed hole 2001 smaller.

[0026] The receiving mechanism comprises an outer gear ring 19, a spur gear 13, and a receiving barrel 12; An outer tooth ring 19 is fixedly mounted on the outer wall of the lower end of the medicine outlet tube 20, and the outer tooth ring 19 is arranged below the bottom wall of the first fixed cylinder 3; A spur gear 13 is meshed and installed on one side of the outer gear ring 19. The spur gear 13 is rotatably arranged on the lower end of the bottom wall of the first fixed cylinder 3 via a fifth rotating shaft. The fifth rotating shaft and the spur gear 13 are fixedly arranged. The outer gear ring 19 and the spur gear 13 are both arranged in the first gap, and the diameter of the outer gear ring 19 is smaller than the diameter of the spur gear 13, so that the rotation speed of the disc 12 can be lower than the rotation speed of the medicine outlet tube 20; The fifth rotating shaft passes through the spur gear 13 and is fixedly connected to the upper center of the rotating disk 2; A plurality of receiving barrels 12 are installed at equal intervals at the eccentric position of the upper end of the rotating disk 2, and the receiving barrels 12 are detachably arranged below the medicine outlet pipe 20; A sixth rotating shaft is fixedly installed at the center of the lower end of the rotating disk 2; The lower end of the sixth rotating shaft is rotatably arranged on the upper end of the bottom plate 1; The sixth rotating shaft is driven to rotate by the operating mechanism. The sixth rotating shaft starts to rotate under the drive of the operating mechanism, and during the rotation process, it drives the turntable 2 installed coaxially therewith to start rotating. During the rotation process, the turntable 2 will periodically move several receiving barrels 12 at the eccentric position above it to the bottom of the medicine outlet pipe 20. At the same time, the medicine outlet pipe 20 will rotate synchronously with the rotation of the turntable 2. When the medicine outlet pipe 20 rotates so that the medicine inlet hole 2001 is aligned with the side where the pills are piled, the receiving barrel 12 can be just below the medicine outlet pipe 20 for receiving the pills.

[0027] The operating mechanism comprises a third sprocket 21, a fourth sprocket 15, and a crank 14; A third sprocket 21 is fixedly mounted on the middle end of the sixth rotating shaft; A fourth sprocket 15 is mounted on one side of the third sprocket 21, and the fourth sprocket 15 is rotatably disposed on the upper end of the bottom plate 1 via a seventh rotating shaft; A crank handle 14 is fixedly mounted on the upper end of the seventh rotating shaft; The outer sides of the third sprocket 21 and the fourth sprocket 15 are meshed with the same second chain. When the user operates the crank 14, the seventh shaft starts to rotate. During the rotation, the seventh shaft drives the fourth sprocket 15 coaxially installed therewith. The fourth sprocket 15 transmits the rotational driving force to the third sprocket 21 through the second chain, causing the third sprocket 21 to start rotating and drive the turntable 2 coaxially installed therewith to start rotating.

[0028] Inclined platforms 802 are installed on both sides of the inner wall of the collection box 8, and the conduit 801 is arranged between the two inclined platforms 802. Its function is to facilitate the pills conveyed by the conveyor belt 6 to be accurately introduced into the conduit 801 through the inclined platforms 802, thereby improving work efficiency.

[0029] Implementation method of the present invention: The device can be embedded in the production line of pills, ensuring that the exit of the device for producing pills can be aligned with the conveyor belt 6. After the pills are produced in batches, they will enter the collection box 8 through the conveyor belt 6, and enter the rotating cylinder 18 through the conduit 801. The rotating cylinder 18 rotates synchronously with the operation of the conveyor belt 6, and transports the pills in batches to the second fixed cylinder 4 below. After the pills enter the second fixed cylinder 4, the synchronous rotation of the push plate 23 will cause the pills to fall from the first circular hole 401 in the bottom wall of the second fixed cylinder 4 into the second fixed cylinder 3 below, and the larger pills will be blocked above the first circular hole 401 in advance; After the sliding barrel 25 in the second fixed barrel 3 receives the pills from the second fixed barrel 4, the partition 2501 inside the sliding barrel 25 and the medicine outlet pipe 20 divide the area inside the sliding barrel 25 into two equal parts, and the first circular hole 401 faces one of the areas, so the pills dropped from the second fixed barrel 4 will be concentrated in the area in the sliding barrel 25 facing the first circular hole 401, and there is no medicine inlet hole 2001 on the side wall of the medicine outlet pipe 20 corresponding to this part of the area, and the slope inside the sliding barrel 25 will cause the pills in this part of the area to be concentrated and accumulated on the outer wall of the medicine outlet pipe 20; At this time, the sliding barrel 25 begins to slide down due to the gravity of the pills and transmits the pressure to the pressure sensor. The pressure sensor will feed back the specific measured value to the display screen, and the operator can accurately see the quality of the pills through the display screen. At this time, the operator can set a quality range for the pressure sensor. When the pills within the range meet the packaging requirements, the medicine outlet tube 20 is manually operated to rotate one circle. After the medicine outlet tube 20 rotates one circle, the medicine inlet hole 2001 on the side wall of the medicine outlet tube 20 will rotate one circle accordingly. In this process, the pills accumulated on the side wall of the medicine outlet tube 20 that meet the packaging requirements will fall into the medicine inlet hole 2001, and at the same time, the turntable 2 of the medicine outlet tube 20 drives one of the receiving barrels 12 to move to the bottom of the medicine outlet tube 20 to receive these pills. Every time the medicine outlet tube 20 rotates one circle, a receiving barrel 12 will move to the bottom of the medicine outlet tube 20. When the quality of the pills in the sliding barrel 25 is outside the set threshold, the medicine dispensing tube 20 is manually controlled to rotate by manually operating the crank 14. At this time, the pills in the sliding barrel 25 that do not meet the packaging quality requirements will also fall. The user can mark the receiving barrel 12 that receives these pills to facilitate subsequent distinction.

[0030] After the equipment has been running for a period of time, some pills with a large volume will accumulate in the second fixed cylinder 4. When maintaining the equipment, it is sufficient to remove it and clean the inside.

[0031] The batch feeding mechanism of the present invention can put the medicines into the second fixed cylinder in batches, and with the rotating screening mechanism, the oversized pills can be isolated and screened in advance. The quantitative delivery mechanism of the present invention can determine the weight of the screened pills through a pressure sensor, and convey the weighed pills to the receiving mechanism below according to the set threshold value. The receiving mechanism can collect pills of equal mass to facilitate subsequent packaging work.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pill batch automatic weighing device, characterized by: It comprises a bottom plate (1), a rotating disk (2), a first fixed cylinder (3), a second fixed cylinder (4), a mounting plate (16), a horizontal mounting plate (5), a conveyor belt (6), a vertical mounting plate (7), a collecting box (8), an operating mechanism, a batch feeding mechanism, a rotating screening mechanism, a receiving mechanism, and a quantitative delivery mechanism; A first fixing cylinder (3) is fixedly provided at the upper end of the bottom plate (1) via a connecting piece, and a first gap is left between the upper end of the bottom plate (1) and the bottom wall of the first fixing cylinder (3); A turntable (2) is rotatably provided at the upper end of the bottom plate (1), and the turntable (2) is driven to rotate by a receiving mechanism; An operating mechanism is provided on one side of the rotating disk (2), the receiving mechanism is driven to work by the operating mechanism, and the rotating disk (2) and the operating mechanism are both provided in the first gap; A quantitative delivery mechanism is provided in the first fixed cylinder (3), and the rotating disk (2) drives the quantitative delivery mechanism to work by rotating; The upper end of the first fixed cylinder (3) is connected to a second fixed cylinder (4), and a rotating screening mechanism is provided in the second fixed cylinder (4); Two horizontal mounting plates (5) are provided at the upper end of the second fixing cylinder (4), and a second gap is left between the two horizontal mounting plates (5); A same mounting plate (16) is fixedly provided at the upper ends of the two horizontal mounting plates (5), a batch feeding mechanism is provided below the mounting plate (16), and the batch feeding mechanism is arranged in the second gap; The rotary screening mechanism is driven to work by the batch feeding mechanism; A collection box (8) is detachably provided at the upper end of the installation plate (16), and the collection box (8) is connected to the installation plate (16); Vertical mounting plates (7) are respectively provided on the outside of the two sides of the collection box (8), and the lower ends of the two vertical mounting plates (7) are fixed to the upper end of the mounting plate (16); A conveyor belt (6) is movably provided between the upper ends of the two vertical mounting plates (7), and two ends of a pulley in the conveyor belt (6) close to the collecting box (8) are rotatably provided on the inner side walls of the two vertical mounting plates (7); The belt pulley close to the collecting box (8) drives the batch feeding mechanism to work by rotating.

2. The automatic pill weighing device according to claim 1, characterized in that: The batch feeding mechanism comprises a fixed cylinder (17), a rotating cylinder (18), a connecting plate (501), a first bevel gear (11), a second bevel gear (10), a first sprocket (9), and a second sprocket (22); The upper end of the second fixed cylinder (4) is connected to a fixed cylinder body (17), and the fixed cylinder body (17) is arranged in the second gap; The lower end of the collecting box (8) is connected to a conduit (801), the mounting plate (16) is provided with a first rectangular through slot (1601), and the conduit (801) passes through the first rectangular through slot (1601) and is connected to the upper end of the fixed cylinder (17); A common connecting plate (501) is fixedly provided between the two horizontal mounting plates (5), and the connecting plate (501) is provided on the rear side of the fixed cylinder (17); A rotating cylinder (18) is rotatably disposed inside the fixed cylinder (17); a first end of a first rotating shaft is fixedly disposed at the center of a rear wall of the rotating cylinder (18); and a second end of the first rotating shaft is rotatably disposed through the rear wall of the fixed cylinder (17) and the connecting plate (501); The second end of the first rotating shaft rotates through the connecting plate (501) and is fixedly provided with a first bevel gear (11); a second bevel gear (10) is meshed with one side of the first bevel gear (11); The second bevel gear (10) is rotatably mounted on the inner wall of one of the horizontal mounting plates (5) via a second rotating shaft; The second rotating shaft rotates through the horizontal mounting plate (5) adjacent to the second rotating shaft and is fixed with a second sprocket (22); A first sprocket (9) is rotatably provided on the outer wall of the vertical mounting plate (7) near the second sprocket (22) via a third rotating shaft, the third rotating shaft is rotatably provided through the two vertical mounting plates (7) respectively, and the third rotating shaft is fixedly connected to the outer wall of the belt pulley near the collection box (8); The first sprocket (9) and the second sprocket (22) are sleeved and meshed with the same first chain on their outer sides; Arc grooves (1801) for rotating and transporting pills are respectively provided on both sides of the rotating cylinder (18); The first rotating shaft drives the rotating screening mechanism to work by rotating.

3. The automatic pill weighing device according to claim 2, characterized in that: The rotating screening mechanism comprises a third bevel gear (27), a fourth bevel gear (28), and a push plate (23); A third bevel gear (27) is fixedly mounted on the middle end of the first rotating shaft, and a fourth bevel gear (28) is meshedly mounted below the third bevel gear (27); The fourth bevel gear (28) is rotatably arranged at the center of the upper end of the second fixed cylinder (4) via an eighth rotating shaft; The eighth rotating shaft rotates through the top wall of the second fixed cylinder (4) and is provided with two push plates (23); A plurality of first circular holes (401) for screening pills are provided on one side of the bottom wall of the second fixed cylinder (4); The two push plates (23) are respectively in detachable contact with the upper ends of the plurality of first circular holes (401).

4. The automatic pill weighing device according to claim 3, characterized in that: The quantitative delivery mechanism comprises a guide rail (24), a sliding barrel (25), a medicine outlet pipe (20), a partition (2501), a return spring (26), a pressure sensor, and a display screen; An annular mounting platform (301) is provided on the top wall of the first fixed cylinder (3), and the second fixed cylinder (4) is fixedly mounted on the upper end of the annular mounting platform (301); A plurality of guide rails (24) are provided at equal intervals between the annular mounting platform (301) and the bottom wall of the first fixing cylinder (3); The sliding sleeves on the plurality of guide rails (24) are provided with a same sliding barrel (25); The outer sides of the plurality of guide rails (24) are sleeved with return springs (26), and the plurality of return springs (26) are respectively fixedly connected to the lower end of the bottom wall of the sliding barrel (25) and the upper end of the bottom wall of the first fixed barrel (3); A plurality of the return springs (26) are electrically connected to a common pressure sensor, and the pressure sensor is arranged between the bottom wall of the sliding barrel (25) and the bottom wall of the first fixed barrel (3); The outside of the pressure sensor is electrically connected to a display screen via a plurality of wires, the display screen is arranged on the outer side wall of the first fixed tube (3), and the plurality of wires penetrate the side wall of the first fixed tube (3); The inner wall of the sliding barrel (25) is a sloped inner wall; A second circular hole (2502) is provided at the center of the sliding barrel (25), and partitions (2501) are provided on both sides of the second circular hole (2502), and the two partitions (2501) are respectively fixed on the inner wall of the slope; The slope inner wall located on the same side of the two partitions (2501) is arranged below the plurality of the first circular holes (401); A medicine outlet pipe (20) is rotatably provided in the second circular hole (2502), the medicine outlet pipe (20) is slidably provided between the two partitions (2501), and the top wall of the medicine outlet pipe (20) is rotatably provided at the center position of the lower end of the bottom wall of the second fixed cylinder (4) via a fourth rotating shaft; The lower end of the medicine outlet tube (20) is rotatably arranged to penetrate the bottom wall of the first fixed cylinder (3) at the center of the circle; A medicine inlet hole (2001) is provided on the side wall of the medicine outlet pipe (20), and the medicine inlet hole (2001) is movably arranged above the bottom wall of the first fixed cylinder (3); The medicine discharging tube (20) is driven to rotate by the receiving mechanism.

5. The automatic pill batch weighing device according to claim 4, characterized in that: A sliding plate for controlling the amount of medicine fed is slidably provided in the medicine feeding hole (2001).

6. The automatic pill weighing device according to claim 4, characterized in that: The receiving mechanism comprises an outer gear ring (19), a spur gear (13), and a receiving barrel (12); An outer toothed ring (19) is fixedly sleeved on the outer wall of the lower end of the medicine outlet tube (20), and the outer toothed ring (19) is arranged below the bottom wall of the first fixed cylinder (3); A spur gear (13) is meshed with one side of the outer gear ring (19); the spur gear (13) is rotatably arranged on the lower end of the bottom wall of the first fixed cylinder (3) via a fifth rotating shaft; the fifth rotating shaft is fixedly arranged on the spur gear (13); The outer gear ring (19) and the spur gear (13) are both arranged in the first gap; The fifth rotating shaft passes through the spur gear (13) and is fixedly connected to the center position of the upper end of the rotating disk (2); A plurality of receiving barrels (12) are provided at equal intervals at an eccentric position on the upper end of the rotating disk (2), and the receiving barrels (12) are detachably arranged below the medicine outlet pipe (20); A sixth rotating shaft is fixedly provided at the center of the lower end of the rotating disk (2); The lower end of the sixth rotating shaft is rotatably arranged on the upper end of the bottom plate (1); The sixth rotating shaft is driven to rotate by the operating mechanism.

7. The automatic pill batch weighing device according to claim 6, characterized in that: The operating mechanism comprises a third sprocket (21), a fourth sprocket (15), and a crank (14); A third sprocket (21) is provided on the fixed sleeve at the middle end of the sixth rotating shaft; A fourth sprocket (15) is provided on one side of the third sprocket (21), and the fourth sprocket (15) is rotatably arranged on the upper end of the bottom plate (1) via a seventh rotating shaft; A crank handle (14) is fixedly provided at the upper end of the seventh rotating shaft; The third sprocket (21) and the fourth sprocket (15) are sleeved and meshed with the same second chain on their outer sides.

8. The automatic pill batch weighing device according to claim 1, characterized in that: Inclined platforms (802) are respectively provided on both sides of the inner wall of the collection box (8), and the conduit (801) is respectively provided between the two inclined platforms (802).

Images