Automatic tablet weighing and filling device

Abstract

The invention relates to the technical field of medicine granule material weighing and transportation, in particular to an automatic medicine granule weighing and filling device which comprises a main frame body, a first-stage medicine containing tank body, a second-stage medicine containing tank body, a third-stage medicine containing tank body, a weighing module, a conical flow guide barrel and a filling and injecting unit. Each stage of medicine containing tank body is provided with an independent weighing module, the three stages of medicine containing tank bodies can work in parallel with the first-stage medicine containing tank body and the second-stage medicine containing tank body, then medicine granule operation, medicine granule weighing and medicine granule filling can be conducted in parallel, the working efficiency is effectively improved, the adaptability and flexibility of the whole device can be guaranteed to the maximum extent, and the labor intensity of workers is lowered. And functional requirements under different working conditions are met. The anti-explosion safety is good, medicine particle materials can not make contact with the external environment in the whole weighing and filling process, meanwhile, waste gas, dust and the like can be conveyed to designated positions through specific pipelines and treated in a unified mode, safety is guaranteed, and the environment-friendly requirement is met.

Description

Technical Field

[0001] The invention relates to the technical field of weighing and transporting medicine granules, in particular to an automatic weighing and filling medicine granule device. Background Art

[0002] The current automated granular material weighing and filling device generally receives the granular material transferred from the upper material outlet, accurately weighs the granules through its own mechanism, and then fills them into the pre-placed medicine container at the lower end. In the entire device, the granule movement, granule weighing and granule filling are completed separately, and different functions need to be completed by different equipment, resulting in scattered equipment and inability to manage them in a unified and parallel manner, which affects efficiency. Summary of the invention

[0003] Aiming at the problem that the conventional weighing and filling device for granular materials cannot satisfy the requirements of weighing and filling in parallel and has low efficiency, the object of the present invention is to provide an automatic weighing and filling device for granular materials.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] An automatic weighing and filling medicine granule device comprises a main frame, a primary medicine tank, a secondary medicine tank, a tertiary medicine tank, a weighing module, a conical guide barrel, and a filling and injecting unit;

[0006] A plurality of external connection seats A are evenly arranged on the outer circumference of the first-level medicine-containing tank body, and each external connection seat A of the first-level medicine-containing tank body is connected to the main frame body through a weighing module. A plurality of external connection seats B are evenly arranged on the outer circumference of the second-level medicine-containing tank body, and each external connection seat B of the second-level medicine-containing tank body is connected to the main frame body through a weighing module. A plurality of external connection seats C are evenly arranged on the outer circumference of the third-level medicine-containing tank body, and each external connection seat C of the third-level medicine-containing tank body is connected to the main frame body through a weighing module. The first-level medicine-containing tank body, the second-level medicine-containing tank body, and the third-level medicine-containing tank body are arranged in sequence from top to bottom on the main frame;

[0007] A primary feed port is provided on the top surface of the primary medicine tank body, a primary discharge port is provided at the bottom end of the primary medicine tank body, and the primary discharge port of the primary medicine tank body is connected to the upper end of the transfer pipe A;

[0008] The cone-shaped guide barrel has openings at both ends, the size of the upper opening of the cone-shaped guide barrel is larger than the size of the lower opening of the cone-shaped guide barrel, the upper opening of the cone-shaped guide barrel is connected to the lower end of the transfer tube A, and the lower opening of the cone-shaped guide barrel is connected to the upper end of the pinch valve A;

[0009] A secondary feed port is provided on the top surface of the secondary medicine tank body, and a secondary discharge port is provided at the bottom end of the secondary medicine tank body. The secondary feed port of the secondary medicine tank body is connected to the lower end of the clamp valve A, and the secondary discharge port of the secondary medicine tank body is connected to the upper end of the clamp valve B, and the lower end of the clamp valve B is connected to the upper end of the transfer tube B.

[0010] A third-level feed port is provided on the top surface of the third-level medicine tank body, and a third-level discharge port is provided at the bottom end of the third-level medicine tank body. The third-level feed port of the third-level medicine tank body is connected to the lower end of the transfer tube B, and the third-level discharge port of the third-level medicine tank body is connected to the upper end of the clamp valve C, and the lower end of the clamp valve C is connected to the upper end of the transfer tube C.

[0011] The filling and injecting unit has a material input end and a material output end. The material input end of the filling and injecting unit is connected to the lower end of the transfer tube C. The filling and injecting unit is used to fill the material into the medicine container.

[0012] A number of branch openings are also provided on the outer peripheral surface of the conical guide barrel, each of the branch openings is connected to one end of a branch feeding pipe, and the other end of each branch feeding pipe is connected to the upper end of a corresponding clamping valve D. Feeding openings are respectively provided on the top surface of the secondary medicine containing tank body at positions corresponding to the lower ends of each clamping valve D, and each feeding opening of the secondary medicine containing tank body is respectively connected to the lower end of a corresponding clamping valve D, and the caliber of each clamping valve D is smaller than the caliber of the clamping valve A.

[0013] The transfer tube A, transfer tube B and transfer tube C are all made of hoses.

[0014] An automatic weighing and filling medicine granule device of the present invention is also provided with a gas-off protection unit, which includes an upper mounting base, two groups of cooperatively arranged clamping cylinders A and clamping plates, the upper mounting base is mounted on the main frame and is located between the primary medicine storage tank body and the secondary medicine storage tank body, the cylinder bodies of the two groups of the clamping cylinders A are respectively arranged on the upper mounting base, and the two groups of the clamping cylinders A are symmetrically located on both sides of the transfer tube A, and each group of the clamping plates is respectively installed on the driving ends of the clamping cylinders A of the same group; when the driving ends of the two groups of the clamping cylinders A are retracted, the clamping plates of the two groups are respectively away from the transfer tube A; when the driving ends of the two groups of the clamping cylinders A are extended, the clamping plates of the two groups clamp the transfer tube A.

[0015] The clamping cylinders A of each group are respectively installed on the upper mounting base through a corresponding cylinder mounting seat, and one end of a plurality of horizontal guide rods are respectively connected to the clamping plates of each group, and the other ends of the horizontal guide rods connected to the clamping plates of each group respectively pass through a corresponding cylinder mounting seat, and the telescopic directions of the driving ends of all the clamping cylinders A and the axial center lines of all the horizontal guide rods are parallel to each other and parallel to the horizontal plane.

[0016] An exhaust port A and an exhaust port E are provided on the top surface of the first-level medicine containing tank body, an exhaust port B is provided on the top surface of the second-level medicine containing tank body, and an exhaust port C is provided on the top surface of the third-level medicine containing tank body. The exhaust port A, the exhaust port B, and the exhaust port C are respectively connected to the confluence pipe, and the exhaust port E is connected to the external exhaust system.

[0017] The filling and injecting unit includes a lower frame, a lifting cylinder A, a cylinder connecting plate, an inner sleeve, an outer sleeve, a vertical guide rod, and a spring. The lower frame is located on the inner side of the main frame. The cylinder bodies of several lifting cylinders A are installed on the lower frame. The driving ends of the lifting cylinders A are vertically downward. The cylinder connecting plates are respectively fixed to the driving ends of all the lifting cylinders A. The upper and lower ends of the inner sleeve are open. The upper and lower ends of the outer sleeve are open. The upper end opening of the inner sleeve serves as the material input end of the filling and injecting unit and is connected to the lower end of the transfer tube C. The lower end opening of the inner sleeve serves as the material output end of the filling and injecting unit. The outer sleeve is sleeved on the inner The outer side of the sleeve, and the upper end opening of the outer sleeve is fixedly connected to the upper end opening of the inner sleeve, a plurality of guide rod mounting seats are arranged on the outer circumferential surface of the outer sleeve, each of the guide rod mounting seats is respectively fixedly connected to the lower end of a corresponding vertical guide rod, the upper end of each vertical guide rod respectively passes through the cylinder connecting plate and is connected to the limiting block, the axial center lines of the inner sleeve, the outer sleeve and all vertical guide rods are perpendicular to the horizontal plane, the outer sides of each vertical guide rod between the guide rod mounting seats and the cylinder connecting plate are respectively sleeved with the springs, the upper ends of each springs abut against the cylinder connecting plate, and the lower ends of each springs abut against the corresponding guide rod mounting seats.

[0018] There is a gap between the inner circumference of the outer sleeve and the outer circumference of the inner sleeve, an exhaust port D is provided on the outer sleeve, and the gap between the inner circumference of the outer sleeve and the outer circumference of the inner sleeve is connected to the exhaust port D, and the exhaust port D is connected to the confluence pipeline;

[0019] An annular air bag is provided on the outer circumferential surface of the outer sleeve near the lower end opening of the outer sleeve, and a spiral guide plate is provided on the outer circumferential surface of the inner sleeve along the axial direction of the inner sleeve.

[0020] The automatic weighing and filling medicine granule device of the present invention also includes a supporting and positioning unit, which includes a lower mounting base, a lifting cylinder B, a lifting plate, a main supporting column, a pneumatic vibrator A, a clamping cylinder B, and a pneumatic vibrator B; the lower mounting base is mounted on the lower frame, and the lower mounting base is located below the whole composed of the inner sleeve and the outer sleeve, the cylinder body of the lifting cylinder B is mounted on the lower mounting base, the driving end of the lifting cylinder B is vertically upward and fixedly connected to the bottom surface of the lifting plate, a plurality of the main supporting columns are fixedly connected to the top surface of the lifting plate, a plurality of the pneumatic vibrators A are also fixedly connected to the top surface of the lifting plate, the vibration end of each of the pneumatic vibrators A is vertically upward, the top end of each of the main supporting columns and the vibration end of each of the pneumatic vibrators A are used to support the bottom of the medicine container, and a positioning pin is also provided on the top end of each of the main supporting columns, and each of the positioning pins is used to be plugged into a positioning hole provided at the bottom of the corresponding medicine container;

[0021] The lower frame is also provided with two clamping cylinders B, which are symmetrically located on both sides of the medicine container. The driving end of each clamping cylinder B is fixedly connected to a pneumatic vibrator B, and the vibration end of each pneumatic vibrator B is located on the side close to the medicine container.

[0022] A number of auxiliary support columns are fixedly connected to the top surface of the lifting plate, and the top of each auxiliary support column is also used to support the bottom of the medicine container; the upper ends of a number of guide columns are fixedly connected to the bottom surface of the lifting plate, and the lower end of each guide column passes through the lower mounting base respectively.

[0023] The advantages and positive effects of the present invention are:

[0024] 1. The present invention cooperates with a primary medicine tank, a secondary medicine tank, a tertiary medicine tank, a weighing module, a conical guide barrel, a filling and injecting unit, etc. Each level of the medicine tank is equipped with an independent weighing module. The tertiary medicine tank can work in parallel with the primary medicine tank and the secondary medicine tank, so that the medicine particles can be operated, weighed and filled in parallel, which effectively improves the work efficiency and can maximize the adaptability and flexibility of the whole device to meet the functional requirements under different working conditions.

[0025] 2. The present invention can realize fast material feeding and accurate material replenishment respectively through the coordinated arrangement of the weighing module with the pinch valve A and the pinch valve D, thereby improving the overall operating efficiency and ensuring the weighing and filling accuracy.

[0026] 3. All driving components of the present invention are pneumatically controlled to ensure the explosion-proof safety of the entire device; at the same time, a gas cut-off protection unit is designed to ensure safety in unexpected situations such as gas cut-off and power cut-off.

[0027] 4. The present invention can prevent the granule materials from contacting the external environment during the entire weighing and filling process. At the same time, waste gas, dust, etc. can be transmitted to a designated location through a specific pipeline for unified treatment, which not only ensures safety but also meets environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the arrangement structure of the primary medicine-containing tank, the conical guide barrel, and the gas-cutoff protection unit of the present invention;

[0030] Figure 3 It is a schematic diagram of the arrangement structure of the conical guide barrel and the gas cut-off protection unit of the present invention;

[0031] Figure 4 It is a schematic diagram of the external structure of the filling and injecting unit of the present invention;

[0032] Figure 5 It is a schematic cross-sectional structure diagram of the filling and injecting unit of the present invention;

[0033] Figure 6 for Figure 5 A magnified image of point A;

[0034] Figure 7 It is a structural schematic diagram of the support and positioning unit of the present invention;

[0035] Figure 8 for Figure 1 Enlarged view of point B.

[0036] In the figure: 1 is the main frame, 100 is the maintenance platform, 101 is the guardrail, 102 is the escalator, 2 is the first-level medicine tank, 201 is the external connection seat A, 3 is the second-level medicine tank, 4 is the third-level medicine tank, 5 is the weighing module, 6 is the conical guide barrel, 7 is the filling and injection unit, 8 is the transfer tube A, 9 is the clamping valve A, 10 is the transfer tube C, 11 is the branch feed pipe, 12 is the clamping valve D, 13 is the air cut-off protection unit, 14 is the upper mounting base, 15 is the clamping cylinder A, 16 is the clamping plate, 17 is the cylinder mounting seat, 18 is the horizontal guide rod , 19 is the lower frame, 20 is the lifting cylinder A, 21 is the cylinder connecting plate, 22 is the inner sleeve, 23 is the outer sleeve, 24 is the vertical guide rod, 25 is the spring, 26 is the guide rod mounting seat, 27 is the limit block, 28 is the annular air bag, 29 is the spiral guide plate, 30 is the support positioning unit, 31 is the lower mounting base, 32 is the lifting cylinder B, 33 is the lifting plate, 34 is the main support column, 35 is the pneumatic vibrator A, 36 is the clamping cylinder B, 37 is the pneumatic vibrator B, 38 is the positioning pin, 39 is the auxiliary support column, and 40 is the guide column. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-8 The present invention is further described in detail.

[0038] An automatic weighing and filling device for medicine granules, such as Figure 1-8 As shown, in this embodiment, the main frame 1, the primary medicine tank 2, the secondary medicine tank 3, the tertiary medicine tank 4, the weighing module 5, the conical guide bucket 6, and the filling and injecting unit 7 are included. In this embodiment, the main frame 1 is a steel frame structure, which can be equipped with an inspection platform 100. The inspection platform 100 is provided with a guardrail 101 for protection and an escalator 102 for easy climbing of the staff, so that the staff can install, inspect and maintain the entire device.

[0039] Three external connection seats A 201 are evenly arranged on the circumferential upper surface of the first-level medicine tank body 2, and each external connection seat A 201 of the first-level medicine tank body 2 is connected to the main frame 1 through a weighing module 5. Three external connection seats B are evenly arranged on the circumferential upper surface of the second-level medicine tank body 3, and each external connection seat B of the second-level medicine tank body 3 is connected to the main frame 1 through a weighing module 5. Three external connection seats C are evenly arranged on the circumferential upper surface of the third-level medicine tank body 4, and each external connection seat C of the third-level medicine tank body 4 is connected to the main frame 1 through a weighing module 5. The first-level medicine tank body 2, the second-level medicine tank body 3, and the third-level medicine tank body 4 are arranged in sequence from top to bottom on the main frame 1, and the arrangement principle is basically the same. In this embodiment, the first-level medicine tank body 2, the second-level medicine tank body 3, and the third-level medicine tank body 4 are all funnel-shaped, which is convenient for the falling of the medicine granules. The primary medicine tank 2, the secondary medicine tank 3, and the tertiary medicine tank 4 can be weighed by weighing modules 5 to obtain the medicine granules. In this embodiment, each weighing module 5 is a commercially available digital weighing module product, such as a powermount digital weighing module model SLB615D produced by Mettler Toledo, and is connected to an external controller for communication.

[0040] A primary feed port is provided on the top surface of the primary medicine tank 2, and a primary discharge port is provided at the bottom end of the primary medicine tank 2. The primary discharge port of the primary medicine tank 2 is connected to the upper end of the transfer tube A 8. The primary feed port of the primary medicine tank 2 is used to input the medicine granules transferred from the outside into the primary medicine tank 2. The primary medicine tank 2 itself is used to temporarily store the transferred medicine granules and lower them to the secondary medicine tank 3 as needed.

[0041] The upper and lower ends of the conical guide barrel 6 are open, the upper end opening size of the conical guide barrel 6 is larger than the lower end opening size of the conical guide barrel 6, the upper end opening of the conical guide barrel 6 is connected to the lower end of the transfer tube A 8, and the lower end opening of the conical guide barrel 6 is connected to the upper end of the clamping valve A 9.

[0042] A secondary feed port is provided on the top surface of the secondary medicine tank 3, and a secondary discharge port is provided at the bottom end of the secondary medicine tank 3. The secondary feed port of the secondary medicine tank 3 is connected to the lower end of the pinch valve A 9, and the secondary discharge port of the secondary medicine tank 3 is connected to the upper end of the pinch valve B, and the lower end of the pinch valve B is connected to the upper end of the transfer tube B. The setting of the pinch valve A 9 is used to control whether the granular material in the primary medicine tank 2 can enter the secondary medicine tank 3 through the secondary feed port of the secondary medicine tank 3, and perform the main rapid feeding action on the secondary medicine tank 3. The secondary medicine tank 3 is used to receive the granular material of the predetermined final filling mass, and the weighing module 5 connected to the secondary medicine tank 3 is used to monitor whether the granular material in the secondary medicine tank 3 reaches the preset value.

[0043] A tertiary feed port is provided on the top surface of the tertiary medicine tank body 4, and a tertiary discharge port is provided at the bottom end of the tertiary medicine tank body 4. The tertiary feed port of the tertiary medicine tank body 4 is connected to the lower end of the transfer tube B, and the tertiary discharge port of the tertiary medicine tank body 4 is connected to the upper end of the clamp valve C, and the lower end of the clamp valve C is connected to the upper end of the transfer tube C10. The setting of the clamp valve B is used to control whether the granular material in the secondary medicine tank body 3 can enter the tertiary medicine tank body 4 through the tertiary discharge port of the tertiary medicine tank body 4, and perform a feeding action on the tertiary medicine tank body 4. The setting of the clamp valve C is used to control whether the granular material in the tertiary medicine tank body 4 can enter the filling and injection unit 7. The size of the tertiary medicine tank body 4 is basically the same as that of the secondary medicine tank body 3, and is used to receive the granular material transferred by the secondary medicine tank body 3. The weighing module 5 connected to the third-level medicine tank 4 is used to monitor whether the medicine granules in the third-level medicine tank 4 have reached the preset value, and plays the role of re-weighing the medicine granules delivered by the second-level medicine tank 3, once again ensuring the filling accuracy. The third-level medicine tank 4 can work in parallel with the first-level medicine tank 2 and the second-level medicine tank 3 to improve work efficiency.

[0044] The filling and injecting unit 7 has a material input end and a material output end. The material input end of the filling and injecting unit 7 is connected to the lower end of the transfer tube C10. The filling and injecting unit 7 fills the material into the medicine container.

[0045] In this embodiment, the clamp valve A9, the clamp valve B, and the clamp valve C are all commercially available products, and the diameters of the clamp valve A9, the diameters of the clamp valve B, and the diameters of the clamp valve C are all the same, and the installation and connection methods all adopt the existing technology; the clamp valve A9, the clamp valve B, and the clamp valve C are respectively controlled by an external controller. In this embodiment, the transfer tube A8, the transfer tube B, and the transfer tube C10 are all hoses, and the installation and connection methods all adopt the existing technology. By making the transfer tube A8, the transfer tube B, and the transfer tube C10 all use hoses, the weighing module 5 will not be affected by the disturbance of the transfer tubes during material transmission during weighing, thereby maximizing the weighing accuracy.

[0046] Specifically, if Figure 2 and Figure 3 As shown, in this embodiment, three tributary ports are evenly opened on the outer circumference of the conical guide barrel 6, each tributary port is connected to one end of the tributary feed pipe 11, and the other end of each tributary feed pipe 11 is respectively connected to the upper end of a corresponding clamp valve D12, and a feed port is respectively provided on the top surface of the secondary medicine tank body 3 corresponding to the lower end of each clamp valve D12, and each feed port of the secondary medicine tank body 3 is respectively connected to the lower end of a corresponding clamp valve D12, and the caliber of each clamp valve D12 is smaller than the caliber of the clamp valve A9. In this embodiment, the clamp valve D12 adopts a commercial product, and the action is also controlled by an external controller. Through the coordinated setting of the tributary feed pipe 11 and the clamp valve D12, it can be used to accurately feed the secondary medicine tank body 3. The weighing module 5 connected to the secondary medicine tank body 3 and the clamp valve A9 and the clamp valve D12 can form a control closed loop to ensure the weighing accuracy.

[0047] like Figure 2 and Figure 3 As shown, the automatic weighing and filling device for medicine granules proposed in this embodiment is also provided with a gas-off protection unit 13, which includes an upper mounting base 14, two groups of cooperating clamping cylinders A15 and clamping plates 16. The upper mounting base 14 is mounted on the main frame 1 and is located between the primary medicine tank body 2 and the secondary medicine tank body 3. The cylinder bodies of the two groups of clamping cylinders A15 are respectively arranged on the upper mounting base 14, and the two groups of clamping cylinders A15 are symmetrically located on both sides of the transfer tube A8. Each group of clamping plates 16 is respectively installed on the driving end of the clamping cylinder A15 of the same group. When the driving ends of the two groups of clamping cylinders A15 are retracted, the two groups of clamping plates 16 are respectively away from the transfer tube A8. When the driving ends of the two groups of clamping cylinders A15 are extended, the two groups of clamping plates 16 clamp the transfer tube A8. In this embodiment, the clamping cylinder A15 adopts a commercially available single-acting cylinder product. When the automatic weighing and filling device for medicine pellets is working normally, the driving ends of the two groups of clamping cylinders A15 are in a retracted state; when the automatic weighing and filling device for medicine pellets encounters special circumstances such as gas failure or power failure, the return spring in the single-acting cylinder starts to operate, and the driving ends of the two groups of clamping cylinders A15 extend toward each other, and then the transfer tube A8 of the hose is clamped to ensure that the medicine pellets will not continue to fall and wait for subsequent processing by personnel.

[0048] Each group of clamping cylinders A15 is mounted on the upper mounting base 14 through a corresponding cylinder mounting seat 17. Each group of clamping plates 16 is connected to one end of two horizontal guide rods 18. The other ends of the horizontal guide rods 18 connected to the clamping plates 16 of each group pass through a corresponding cylinder mounting seat 17. The telescopic directions of the driving ends of all clamping cylinders A15 and the axial center lines of all horizontal guide rods 18 are parallel to each other and parallel to the horizontal plane. The cylinder mounting seat 17 may be provided with a linear bearing for the horizontal guide rods 18 to pass through. The horizontal guide rods 18 are provided to ensure that the horizontal movement of the clamping plates 16 is accurate and reliable.

[0049] Specifically, in this embodiment, exhaust port A and exhaust port E are provided on the top surface of the first-level medicine tank body 2, exhaust port B is provided on the top surface of the second-level medicine tank body 3, and exhaust port C is provided on the top surface of the third-level medicine tank body 4. Exhaust port A, exhaust port B, and exhaust port C are respectively connected to the converging pipe, and exhaust port E is connected to the external exhaust system through a hose. In this embodiment, the setting methods of the converging pipe and the external exhaust system are both based on the existing technology, and the converging pipe also uses a hose. It is convenient to make the waste gas generated in the second-level medicine tank body 3 and the third-level medicine tank body 4 be uniformly collected in the first-level medicine tank body 2, and the waste gas in the first-level medicine tank body 2 is uniformly extracted and discharged from the exhaust port E by the external exhaust system.

[0050] Specifically, if Figure 4-6As shown, in this embodiment, the filling and injecting unit 7 includes a lower frame 19, a lifting cylinder A20, a cylinder connecting plate 21, an inner sleeve 22, an outer sleeve 23, a vertical guide rod 24, and a spring 25. The lower frame 19 is located on the inner side of the main frame 1, and two cylinder bodies of the lifting cylinders A20 are installed on the lower frame 19 through the cylinder mounting bracket. The driving end of each lifting cylinder A20 is vertically downward, and the cylinder connecting plate 21 is respectively connected to all the lifting cylinders A20. The driving end of the inner sleeve 20 is fixedly connected, the upper and lower ends of the inner sleeve 22 are both open, and the upper and lower ends of the outer sleeve 23 are both open. The upper end opening of the inner sleeve 22 serves as the material input end of the filling and injection unit 7 and is connected to the lower end of the transfer tube C10. The lower end opening of the inner sleeve 22 serves as the material output end of the filling and injection unit 7. The outer sleeve 23 is sleeved on the outside of the inner sleeve 22, and the upper end opening of the outer sleeve 23 is fixedly connected to the upper end opening of the inner sleeve 22. Four guide rod mounting seats 26 are evenly arranged on the outer circumferential surface of the outer sleeve 23, and each guide rod mounting seat 26 is provided. The mounting seats 26 are respectively fixed with the lower end of a corresponding vertical guide rod 24, the upper end of each vertical guide rod 24 passes through the cylinder connecting plate 21 and is connected to the limiting block 27, the axial center lines of the inner sleeve 22, the outer sleeve 23 and all the vertical guide rods 24 are perpendicular to the horizontal plane, and the outer side of each vertical guide rod 24 between each guide rod mounting seat 26 and the cylinder connecting plate 21 is respectively sleeved with a spring 25, the upper end of each spring 25 abuts against the cylinder connecting plate 21, and the lower end of each spring 25 abuts against the corresponding guide rod mounting seat 26. The setting of the limiting block 27 is used to prevent the vertical guide rod 24 from falling from the cylinder connecting plate 21.

[0051] In this embodiment, there is a gap between the inner circumference of the outer sleeve 23 and the outer circumference of the inner sleeve 22, and an exhaust port D is opened on the outer sleeve 23. The gap between the inner circumference of the outer sleeve 23 and the outer circumference of the inner sleeve 22 is connected to the exhaust port D, and the exhaust port D is connected to the confluence pipeline.

[0052] An annular airbag 28 is provided on the outer circumference of the outer sleeve 23 near the lower end opening of the outer sleeve 23, and a spiral guide plate 29 is provided on the outer circumference of the inner sleeve 22 along the axial direction of the inner sleeve 22. The annular airbag 28 is a commercially available product, and is controlled by an external controller to expand outwards when inflated or to shrink inwards when deflated.

[0053] When it is necessary to fill the medicine container with medicine particles, the lifting cylinder A 20 drives the cylinder connecting plate 21 to descend, so that the whole composed of the inner sleeve 22 and the outer sleeve 23 extends into the medicine container, and the annular airbag 28 is controlled to expand and tighten on the inner wall of the medicine container to ensure that the internal environment of the medicine container is isolated from the outside and the waste gas does not overflow. Then the clamp valve C is controlled to open to fill the medicine container. The vertical guide rod 24 and the spring 25 can make the whole composed of the inner sleeve 22 and the outer sleeve 23 float up and down to a certain extent, so as to adapt to the parking position error of the medicine container and this unit to the maximum extent. The waste gas in the medicine container can be discharged through the gap between the inner circumference of the outer sleeve 23 and the outer circumference of the inner sleeve 22, the exhaust port D, and uniformly collected to the primary medicine tank body 2 through the converging pipeline. The medicine particles that accidentally enter the gap between the inner circumference of the outer sleeve 23 and the outer circumference of the inner sleeve 22 during filling can flow back to the medicine container under the interception of the spiral guide plate 29. When filling is not performed, the lifting cylinder A 20 drives the cylinder connecting plate 21 to rise to avoid the medicine containers transported later.

[0054] like Figure 1 , Figure 7 and Figure 8 As shown, the automatic weighing and filling device for medicine pellets in this embodiment further includes a support and positioning unit 30, which includes a lower mounting base 31, a lifting cylinder B 32, a lifting plate 33, a main support column 34, a pneumatic vibrator A 35, a clamping cylinder B 36, and a pneumatic vibrator B 37. The lower mounting base 31 is mounted on the lower frame 19, and the lower mounting base 31 is located below the whole formed by the inner sleeve 22 and the outer sleeve 23. The cylinder body of the lifting cylinder B 32 is mounted on the lower mounting base 31. The driving end of the lifting cylinder B 32 is vertically upward and fixed to the bottom surface of the lifting plate 33. Two main support columns 34 arranged at diagonal positions are fixed to the top surface of the lifting plate 33. Two pneumatic vibrators A 35 arranged at diagonal positions are also fixed to the top surface of the lifting plate 33. The vibration end of each pneumatic vibrator A 35 is vertically upward. The top end of each main support column 34 and the vibration end of each pneumatic vibrator A 35 are used to support the bottom of the medicine container. A positioning pin 38 is also provided on the top of each main support column 34. Each positioning pin 38 is used to be plugged into the corresponding positioning hole arranged at the bottom of the corresponding medicine container to reliably position the medicine container.

[0055] Two clamping cylinders B36 are also provided on the lower frame 19. The two clamping cylinders B36 are symmetrically located on both sides of the medicine container. The driving end of each clamping cylinder B36 is fixedly connected to a pneumatic vibrator B37. The vibration end of each pneumatic vibrator B37 is located on a side close to the medicine container. In this embodiment, the extension direction of the driving end of the clamping cylinder B36 is parallel to the horizontal plane.

[0056] In this embodiment, four evenly arranged auxiliary support columns 39 are fixedly connected to the top surface of the lifting plate 33, and the top of each auxiliary support column 39 is also used to support the bottom of the medicine container. In this embodiment, the upper ends of four guide columns 40 are evenly fixedly connected to the bottom surface of the lifting plate 33, and the lower ends of each guide column 40 pass through the lower mounting base 31 respectively. The lifting plate 33 can be provided with a linear bearing for the guide column 40 to pass through. The provision of the guide column 40 allows the lifting plate 33 to be stably lifted and lowered.

[0057] In this embodiment, the lifting cylinder B32, the pneumatic vibrator A35, the clamping cylinder B36, and the pneumatic vibrator B37 are all commercially available products, and their actions are controlled by an external controller. By controlling the action of the driving end of the lifting cylinder B32, the lifting plate 33 can be driven to lift and lower, thereby lifting and lowering the medicine container above the lifting plate 33. The top of each main support column 34, the top of each auxiliary support column 39, and the vibrating end of each pneumatic vibrator A35 all support the bottom of the medicine container. After the lifting plate 33 is raised, the driving end of each clamping cylinder B36 extends out and drives the pneumatic vibrator B37 to move, and the vibrating end of each pneumatic vibrator B37 is respectively against the outer peripheral surface of the medicine container. Considering the size and flowability of the filled medicine particles themselves, the shape of the medicine particles in the medicine container will have a pointed protrusion, which not only wastes the space in the medicine container, but also affects the subsequent container capping. By simultaneously controlling the actions of the pneumatic vibrator A 35 and the pneumatic vibrator B 37, the medicine container is vibrated, so that the material is dropped more smoothly and evenly during the filling process, and the shape of the medicine particles in the medicine container is more uniform, providing convenience for subsequent workstations. After the filling is completed, the lifting cylinder B 32 drives the lifting plate 33 to fall again, and puts the medicine container back to its original position to ensure its continued operation.

[0058] Working principle:

[0059] During operation, the granular material enters the primary medicine tank 2 through the hose, and the weighing module 5 connected to the primary medicine tank 2 monitors the material quality in the primary medicine tank 2 in real time; then the material enters the secondary medicine tank 3 through the conical guide barrel 6 and the pinch valve A 9, and the weighing module 5 connected to the secondary medicine tank 3 monitors the material quality in the secondary medicine tank 3 in real time. When the weighing module 5 connected to the secondary medicine tank 3 detects that the material quality reaches a predetermined value slightly lower than the predetermined final filling quality, the pinch valve A is closed. 9, and by controlling the pinch valves D12 connected to the branch feed pipes 11, the material is slowly fed in through the feeding port of the secondary medicine tank 3, and when the predetermined final filling mass is reached, all the pinch valves D12 are closed; after the tertiary medicine tank 4 receives the material, it is weighed again, and at this time, the secondary medicine tank 3 can work in parallel; then the tertiary medicine tank 4 transmits the material to the filling and injecting unit 7 through the pinch valve C, and the filling and injecting unit 7 fills the material into the medicine container.

Claims

1. An automatic weighing and filling device for medicine granules, characterized in that: It comprises a main frame (1), a primary medicine-containing tank body (2), a secondary medicine-containing tank body (3), a tertiary medicine-containing tank body (4), a weighing module (5), a conical guide barrel (6), and a filling and injecting unit (7); A plurality of external connection seats A (201) are evenly arranged on the outer circumference of the first-level medicine-containing tank body (2), and each external connection seat A (201) of the first-level medicine-containing tank body (2) is connected to the main frame (1) through a weighing module (5). A plurality of external connection seats B are evenly arranged on the outer circumference of the second-level medicine-containing tank body (3), and each external connection seat B of the second-level medicine-containing tank body (3) is connected to the main frame (1) through a weighing module (5). A plurality of external connection seats C are evenly arranged on the outer circumference of the third-level medicine-containing tank body (4), and each external connection seat C of the third-level medicine-containing tank body (4) is connected to the main frame (1) through a weighing module (5). The first-level medicine-containing tank body (2), the second-level medicine-containing tank body (3), and the third-level medicine-containing tank body (4) are arranged in sequence from top to bottom on the main frame (1); A first-level feed port is provided on the top surface of the first-level medicine-containing tank body (2), a first-level discharge port is provided at the bottom end of the first-level medicine-containing tank body (2), and the first-level discharge port of the first-level medicine-containing tank body (2) is connected to the upper end of a transfer pipe A (8); The cone-shaped flow guide barrel (6) has openings at both ends, the size of the upper opening of the cone-shaped flow guide barrel (6) is larger than the size of the lower opening of the cone-shaped flow guide barrel (6), the upper opening of the cone-shaped flow guide barrel (6) is connected to the lower end of the transfer tube A (8), and the lower opening of the cone-shaped flow guide barrel (6) is connected to the upper end of the pinch valve A (9); A secondary feed port is provided on the top surface of the secondary medicine storage tank body (3), and a secondary discharge port is provided at the bottom end of the secondary medicine storage tank body (3). The secondary feed port of the secondary medicine storage tank body (3) is connected to the lower end of the clamping valve A (9), and the secondary discharge port of the secondary medicine storage tank body (3) is connected to the upper end of the clamping valve B, and the lower end of the clamping valve B is connected to the upper end of the transfer tube B. A third-level feed port is provided on the top surface of the third-level medicine tank body (4), and a third-level discharge port is provided at the bottom end of the third-level medicine tank body (4). The third-level feed port of the third-level medicine tank body (4) is connected to the lower end of the transfer tube B, and the third-level discharge port of the third-level medicine tank body (4) is connected to the upper end of the clamp valve C, and the lower end of the clamp valve C is connected to the upper end of the transfer tube C (10); The filling and injecting unit (7) has a material input end and a material output end. The material input end of the filling and injecting unit (7) is connected to the lower end of the transfer tube C (10). The filling and injecting unit (7) is used to fill the material into the medicine container.

2. The automatic weighing and filling device for medicine pellets according to claim 1, characterized in that: The outer circumferential surface of the conical guide barrel (6) is also provided with a plurality of branch openings, each of which is connected to one end of a branch feeding pipe (11), and the other end of each branch feeding pipe (11) is respectively connected to the upper end of a corresponding clamping valve D (12). A feeding opening is respectively provided on the top surface of the secondary medicine containing tank body (3) at a position corresponding to the lower end of each clamping valve D (12), and each feeding opening of the secondary medicine containing tank body (3) is respectively connected to the lower end of a corresponding clamping valve D (12), and the caliber of each clamping valve D (12) is smaller than the caliber of the clamping valve A (9).

3. The automatic weighing and filling device for medicine granules according to claim 1 is characterized in that: The transfer tube A (8), transfer tube B and transfer tube C (10) are all made of hoses.

4. The automatic weighing and filling device for medicine pellets according to claim 3 is characterized in that: A gas cut-off protection unit (13) is also provided, the gas cut-off protection unit (13) comprising an upper mounting base (14), two groups of cooperating clamping cylinders A (15) and clamping plates (16), the upper mounting base (14) being mounted on the main frame (1) and being located between the primary medicine storage tank body (2) and the secondary medicine storage tank body (3), the cylinder bodies of the two groups of the clamping cylinders A (15) being respectively arranged on the upper mounting base (14), and the two groups of the clamping cylinders A (15) being arranged on the upper mounting base (14). The cylinders A (15) are symmetrically located on both sides of the transfer tube A (8), and each group of the clamping plates (16) is respectively installed on the driving end of the clamping cylinders A (15) of the same group; when the driving ends of the two groups of the clamping cylinders A (15) are retracted, the two groups of the clamping plates (16) are respectively away from the transfer tube A (8); when the driving ends of the two groups of the clamping cylinders A (15) are extended, the two groups of the clamping plates (16) clamp the transfer tube A (8).

5. The automatic weighing and filling device for medicine pellets according to claim 4, characterized in that: The clamping cylinders A (15) of each group are respectively mounted on the upper mounting base (14) via a corresponding cylinder mounting seat (17); one end of a plurality of horizontal guide rods (18) are respectively connected to the clamping plates (16) of each group; the other ends of the horizontal guide rods (18) connected to the clamping plates (16) of each group respectively pass through a corresponding cylinder mounting seat (17); the telescopic directions of the driving ends of all the clamping cylinders A (15) and the axial center lines of all the horizontal guide rods (18) are parallel to each other and to the horizontal plane.

6. The automatic weighing and filling device for medicine pellets according to claim 1, characterized in that: An exhaust port A and an exhaust port E are provided on the top surface of the first-level medicine-containing tank body (2), an exhaust port B is provided on the top surface of the second-level medicine-containing tank body (3), and an exhaust port C is provided on the top surface of the third-level medicine-containing tank body (4). The exhaust port A, the exhaust port B, and the exhaust port C are respectively connected to the confluence pipeline, and the exhaust port E is connected to the external exhaust system.

7. The automatic weighing and filling device for medicine pellets according to claim 1, characterized in that: The filling and injecting unit (7) comprises a lower frame (19), a lifting cylinder A (20), a cylinder connecting plate (21), an inner sleeve (22), an outer sleeve (23), a vertical guide rod (24), and a spring (25). The lower frame (19) is located on the inner side of the main frame (1). The cylinder bodies of a plurality of lifting cylinders A (20) are mounted on the lower frame (19). The driving ends of the lifting cylinders A (20) are all vertically downward. The cylinder connecting plate (21) are respectively fixedly connected to the driving ends of all lifting cylinders A (20), the upper and lower ends of the inner sleeve (22) are both open, and the upper and lower ends of the outer sleeve (23) are both open. The upper end opening of the inner sleeve (22) serves as the material input end of the filling and injection unit (7) and is connected to the lower end of the transfer tube C (10), and the lower end opening of the inner sleeve (22) serves as the material output end of the filling and injection unit (7). The outer sleeve (23) is sleeved on the The outer side of the inner sleeve (22), and the upper end opening of the outer sleeve (23) is fixedly connected to the upper end opening of the inner sleeve (22), and a plurality of guide rod mounting seats (26) are provided on the outer peripheral surface of the outer sleeve (23), and each of the guide rod mounting seats (26) is respectively fixedly connected to the lower end of a corresponding vertical guide rod (24), and the upper end of each vertical guide rod (24) passes through the cylinder connecting plate (21) and is connected to the limiting block (27). The axial center lines of the inner sleeve (22), the outer sleeve (23) and all the vertical guide rods (24) are perpendicular to the horizontal plane. The outer sides of the vertical guide rods (24) between the guide rod mounting seats (26) and the cylinder connecting plates (21) are respectively sleeved with the springs (25). The upper ends of the springs (25) are in contact with the cylinder connecting plates (21), and the lower ends of the springs (25) are in contact with the corresponding guide rod mounting seats (26).

8. The automatic weighing and filling device for medicine pellets according to claim 7, characterized in that: There is a gap between the inner circumference of the outer sleeve (23) and the outer circumference of the inner sleeve (22), an exhaust port D is provided on the outer sleeve (23), and the gap between the inner circumference of the outer sleeve (23) and the outer circumference of the inner sleeve (22) is connected to the exhaust port D, and the exhaust port D is connected to the confluence pipeline; An annular air bag (28) is provided on the outer circumferential surface of the outer sleeve (23) near the lower end opening of the outer sleeve (23), and a spiral guide plate (29) is provided on the outer circumferential surface of the inner sleeve (22) along the axial direction of the inner sleeve (22).

9. The automatic weighing and filling device for medicine pellets according to claim 7, characterized in that: It also includes a support positioning unit (30), which includes a lower mounting base (31), a lifting cylinder B (32), a lifting plate (33), a main support column (34), a pneumatic vibrator A (35), a clamping cylinder B (36), and a pneumatic vibrator B (37); the lower mounting base (31) is installed on the lower frame (19), and the lower mounting base (31) is located below the whole composed of the inner sleeve (22) and the outer sleeve (23); the cylinder body of the lifting cylinder B (32) is installed on the lower mounting base (31), and the driving end of the lifting cylinder B (32) is vertically upward. , and is fixedly connected to the bottom surface of the lifting plate (33), a plurality of the main support columns (34) are fixedly connected to the top surface of the lifting plate (33), a plurality of the pneumatic vibrators A (35) are also fixedly connected to the top surface of the lifting plate (33), the vibration end of each of the pneumatic vibrators A (35) is vertically facing upward, the top end of each of the main support columns (34) and the vibration end of each of the pneumatic vibrators A (35) are used to support the bottom of the medicine container, and a positioning pin (38) is also provided on the top end of each of the main support columns (34), and each of the positioning pins (38) is used to be plugged into a positioning hole provided on the bottom of the corresponding medicine container; The lower frame (19) is also provided with two clamping cylinders B (36), which are symmetrically located on both sides of the medicine container. The driving end of each clamping cylinder B (36) is fixedly connected to a pneumatic vibrator B (37), and the vibration end of each pneumatic vibrator B (37) is located on a side close to the medicine container.

10. The automatic weighing and filling device for medicine pellets according to claim 9, characterized in that: A plurality of auxiliary support columns (39) are fixedly connected to the top surface of the lifting plate (33), and the top end of each auxiliary support column (39) is also used to support the bottom of the medicine container; the upper ends of a plurality of guide columns (40) are fixedly connected to the bottom surface of the lifting plate (33), and the lower ends of each guide column (40) pass through the lower mounting base (31) respectively.

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