Multi-channel peristaltic pump filling system

Abstract

This invention provides a multi-channel peristaltic pump filling system, comprising: a peristaltic pump filling device including multiple peristaltic pumps for filling different containers; a weighing component for weighing the containers before and after filling to obtain the actual filling volume of each peristaltic pump; and multiple servo drive systems, each corresponding to one of the multiple peristaltic pumps and connected to the weighing component. This multi-channel peristaltic pump filling system, by using multiple peristaltic pumps to fill different containers, and with multiple servo drive systems correspondingly connected to the multiple peristaltic pumps and cooperating with the weighing component, achieves filling volume compensation under the control of the servo drive systems through filling volume feedback, ensuring the stability of filling volume and filling accuracy over long-term operation.

Description

Technical Field

[0001] This invention relates to the field of peristaltic pump technology, and in particular to a multi-channel peristaltic pump filling system. Background Technology

[0002] Existing dual-channel peristaltic pump filling systems save some space compared to single-head peristaltic pumps, but still have limitations. Especially for applications requiring more than 10 pumps, they still require a certain amount of space for installation and lack automatic compensation functions. After long-term operation, due to wear of the silicone tubing inside the pump, the filling volume and filling accuracy will drift significantly. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-channel peristaltic pump filling system. By setting up multiple layers of peristaltic pumps to fill different containers, multiple servo drive systems are connected to the multiple layers of peristaltic pumps and are used in conjunction with a weighing component. Through filling volume feedback, under the control of the servo drive system, it has the advantages of being able to achieve filling volume compensation and ensuring the stability of filling volume and filling accuracy under long-term operation.

[0004] To address the problems in the prior art, in a first aspect, the present invention provides a multi-channel peristaltic pump filling system, comprising:

[0005] A peristaltic pump filling device, including a multi-layer peristaltic pump, is used to fill different containers separately;

[0006] A weighing assembly is used to weigh the containers before and after filling to obtain the actual filling volume of each of the peristaltic pumps;

[0007] Multiple servo drive systems are connected one-to-one with the multi-layer peristaltic pumps and connected to the weighing assembly. The servo drive system is used to set the target filling volume of each layer of peristaltic pumps, control each layer of peristaltic pumps to fill the container based on the target filling volume of each layer of peristaltic pumps, and when the actual filling volume of each layer of peristaltic pumps is received from the weighing assembly, the actual filling volume of each layer of peristaltic pumps is compared with the target filling volume. If there is a deviation that exceeds the allowable range, the target filling volume of the peristaltic pump with the deviation is compensated, and the peristaltic pump with the deviation is controlled to fill the container based on the supplemented target filling volume.

[0008] Optionally, the multi-layer peristaltic pump includes:

[0009] Multiple roller shafts are nested in sequence, with the outermost roller shaft exposing a portion of the innermost roller shaft at one end;

[0010] Multiple roller assemblies are respectively arranged around the outer periphery of a roller shaft;

[0011] The pump casing is fitted onto the shafts of the multiple sequentially fitted rollers and is equipped with multiple filling pipes.

[0012] Multiple pump heads are disposed inside the pump housing, each corresponding to a roller assembly and each connected to a filling pipe.

[0013] Optionally, the multi-layer peristaltic pump further includes: multiple pump cover assemblies, each located around a roller shaft, and detachably mounted on the pump housing.

[0014] Optionally, each of the said pump cover assemblies includes:

[0015] Pump cover, which is detachably connected to the pump housing;

[0016] The pressure tongue is detachably connected to the pump housing and is located between the pump cover and the filling pipe;

[0017] A compression spring is located between the pump cover and the pressure tongue;

[0018] Adjust the set screw, which is installed on the pump cover, with one end in contact with the pressure tongue.

[0019] Optionally, each of the roller assemblies includes: a roller flange, a bearing, and a roller, wherein the roller flange is provided with a flat groove; wherein,

[0020] Each roller flange in the roller assembly is connected to each roller shaft in a one-to-one correspondence.

[0021] Optionally, the diameter of the upper end of the roller is different from the diameter of the lower end of the roller, and the end of the roller with the larger diameter contacts the filling tube.

[0022] Optionally, the pump casing includes a housing and a top cover; the housing is sleeved on the plurality of sequentially sleeved roller shafts; the top cover is located on the housing.

[0023] Optionally, the multi-channel peristaltic pump filling system further includes:

[0024] Lower support plate;

[0025] The upper support plate is located on the lower support plate;

[0026] A connecting column is located between the lower support plate and the upper support plate. The upper surface of the connecting column is connected to the upper support plate, and the lower surface of the connecting column is connected to the lower support plate.

[0027] Pump body support column, installed on the upper surface of the upper support plate;

[0028] A pump casing fixing column is located between the pump body support column and the housing. The upper surface of the pump casing fixing column is connected to the housing, and the lower surface of the pump casing fixing column is connected to the pump body support column.

[0029] Optionally, the multi-channel peristaltic pump filling system further includes: multiple bearings, multiple bearing end caps, and multiple sliding sleeves; wherein,

[0030] Multiple bearings are respectively fitted around the periphery of multiple roller shafts; multiple sleeves are respectively fitted around the periphery of some of the bearings; multiple sliding sleeves are respectively fitted around the periphery of some of the roller shafts.

[0031] Optionally, the plurality of servo drive systems include: a plurality of servo drive control systems, a plurality of drive motors, a plurality of reducers, and a plurality of gear pairs; wherein, the plurality of servo drive control systems are connected to the plurality of first drive motors in a one-to-one correspondence; the plurality of gear pairs are sleeved on the bottom periphery of the plurality of roller shafts and are arranged in a one-to-one correspondence with the roller shafts; the drive motors, the reducers, and the gear pairs are arranged in a one-to-one correspondence, and the drive motors are connected to the gear pairs via the reducers.

[0032] As described above, the multi-channel peristaltic pump filling system of the present invention has the following beneficial effects: The multi-channel peristaltic pump filling system of the present invention fills different containers by setting up multiple layers of peristaltic pumps, and multiple servo drive systems are connected to the multiple layers of peristaltic pumps and cooperate with the weighing component. Through filling volume feedback, under the control of the servo drive system, filling volume compensation can be realized, ensuring the stability of filling volume and filling accuracy under long-term operation. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the multi-channel peristaltic pump filling system provided in Embodiment 1 of the present invention.

[0034] Figure 2 This is a three-dimensional structural diagram of a partial structure in the multi-channel peristaltic pump filling system provided in Embodiment 2 of the present invention.

[0035] Figure 3 This is a front view of a partial structure in the multi-channel peristaltic pump filling system provided in Embodiment 2 of the present invention.

[0036] Figure 4 For along Figure 3 Cross-sectional view along the AA direction.

[0037] Figure 5 This is a top view of the first roller assembly in the multi-channel peristaltic pump filling system provided in Embodiment 2 of the present invention.

[0038] Figure 6 For along Figure 5 Cross-sectional view along the BB direction.

[0039] Figure 7 This is a top view of the second roller assembly in the multi-channel peristaltic pump filling system provided in Embodiment 2 of the present invention.

[0040] Figure 8 For along Figure 7 Cross-sectional view along the CC direction.

[0041] Figure 9 This is a top view of the third roller assembly in the multi-channel peristaltic pump filling system provided in Embodiment 2 of the present invention.

[0042] Figure 10 For along Figure 9 Cross-sectional view along the DD direction.

[0043] Figure 11 This is a top view of the fourth roller assembly in the multi-channel peristaltic pump filling system provided in Embodiment 2 of the present invention.

[0044] Figure 12 For along Figure 11 Cross-sectional view along the EE direction.

[0045] Figure 13 This is a top view of the pump cover assembly in the multi-channel peristaltic pump filling system provided in Embodiment 2 of the present invention.

[0046] Figure 14 This is a top view of the first drive motor, second drive motor, third drive motor and fourth drive motor located on the lower support plate in the multi-channel peristaltic pump filling system provided in Embodiment 2 of the present invention.

[0047] Component Numbering Explanation: 1'. Peristaltic pump filling device; 2'. Container; 3'. Filling frame; 1. Pump cover assembly; 2. Upper support plate; 3. Lower support plate; 4. Connecting column; 5. Pump body support column; 6. Pump casing fixing column; 7. First pump head; 8. Second pump head; 9. Third pump head; 10. Fourth pump head; 11. Housing; 12. Top cover; 13. Compression spring; 14. Pressure tongue; 15. Adjusting set screw; 16. First drive motor; 17. Second drive motor; 18. Third drive motor; 19. Fourth drive motor; 20. First roller shaft; 21. Second roller shaft; 22. Third roller shaft; 23. Fourth roller shaft; 24. First gear pair; 25. Second gear pair; 26. Third gear pair; 27. Fourth gear pair; 28. Bearing 1; 29. ​​Bearing 2; 30. 31. Bearing 3; 32. Second bearing end cover; 33. Third bearing end cover; 34. Fourth bearing end cover; 35. Sealing ring 1; 36. Sealing ring 2; 37. Sealing ring 3; 38. Sealing ring 4; 39. Sealing ring 5; 40. Bearing 5; 41. Bearing 6; 42. Bearing 7; 43. Bearing 8; 44. Bearing 9; 45. Bearing 10; 46. First roller assembly; 47. Second roller assembly; 48. Third roller assembly; 49. Fourth roller assembly; 50. Roller; 51. First roller flange; 52. Second roller flange; 53. Third roller flange; 54. Fourth roller flange; 55. Pre-filling weighing assembly; 56. Post-filling weighing assembly; 57. Locking nut; 58. Pump cover; 59. First sliding sleeve; 60. Second sliding sleeve; 61. Third sliding sleeve. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] The preferred embodiments described below are merely examples, and other obvious variations will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0050] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0051] Example 1

[0052] Please see Figure 1 As shown, the present invention provides a multi-channel peristaltic pump filling system, the multi-channel peristaltic pump filling system comprising:

[0053] A peristaltic pump filling device 1', comprising a multi-layer peristaltic pump (not shown), is used to fill different containers 2' respectively;

[0054] A weighing assembly (not shown) is used to weigh the containers before and after filling to obtain the actual filling volume of each of the peristaltic pumps.

[0055] Multiple servo drive systems (not shown) are connected one-to-one with the multiple layers of peristaltic pumps and connected to the weighing assembly. The servo drive systems are used to set the target filling volume of each layer of peristaltic pumps, control each layer of peristaltic pumps to fill container 2' based on the target filling volume of each layer of peristaltic pumps, and when the actual filling volume of each layer of peristaltic pumps is received from the weighing assembly, the actual filling volume of each layer of peristaltic pumps is compared with the target filling volume. If there is a deviation that exceeds the allowable range, the target filling volume of the peristaltic pump with the deviation is compensated, and the peristaltic pump with the deviation is controlled to fill container 2' based on the supplemented target filling volume.

[0056] This invention relates to a multi-channel peristaltic pump filling system. By employing multiple layers of peristaltic pumps to fill different containers, multiple servo drive systems are connected to these pumps and, in conjunction with a weighing component, provide filling volume feedback. Under the control of the servo drive systems, filling volume compensation can be achieved, ensuring the stability of filling volume and accuracy over extended periods of operation. The multi-layered peristaltic pump arrangement reduces the floor space required by the multi-channel peristaltic pump filling system, saving valuable space. The multiple servo drive systems corresponding to the multi-layer peristaltic pumps allow for individual control of each pump layer, meeting personalized filling volume requirements.

[0057] As an example, the weighing assembly may include a pre-filling weighing assembly 55 and a post-filling weighing assembly 56.

[0058] The pre-filling weighing component 55 weighs the empty container 2' before filling.

[0059] The post-filling weighing component 56 weighs the container 2' filled to the target volume after filling is completed. By comparing the difference between the two weighings with the filling volume set by the peristaltic pump itself, if a deviation exceeding the allowable range occurs, multiple servo drive systems control the peristaltic pump to compensate for its own filling volume, ensuring that the amount of liquid dispensed each time is always within the allowable error range from the target volume.

[0060] As an example, both the peristaltic pump filling device 1' and the peristaltic pump filling device can be located on the filling frame 3'.

[0061] Example 2

[0062] Please combine Figure 1 See Figures 2 to 14 The present invention also provides a multi-channel peristaltic pump filling system. The multi-channel peristaltic pump filling system in this embodiment has a more specific structure than the multi-channel peristaltic pump filling system in Embodiment 1. The specific structure in this embodiment will be described in detail below.

[0063] As an example, a multi-layer peristaltic pump may include: a plurality of sequentially nested roller shafts, with the outer roller shafts exposing a portion at one end of the inner roller shafts;

[0064] Multiple roller assemblies are respectively arranged around the outer periphery of a roller shaft;

[0065] Pump housing 11 is sleeved on the shafts of the plurality of sequentially sleeved rollers and is provided with a plurality of filling pipes;

[0066] Multiple pump heads are disposed inside the pump housing 11, each corresponding to a roller assembly and connected to a filling pipe.

[0067] Specifically, the pump housing may include a housing 11 and a top cover 12; the housing 11 is sleeved on the plurality of sequentially sleeved roller shafts; the top cover 12 is located on the housing 11.

[0068] Specifically, a multi-layer peristaltic pump may include:

[0069] First roller shaft 20;

[0070] The second roller shaft 21 is located outside the first roller shaft 20, and the upper surface of the second roller shaft 21 is lower than the upper surface of the first roller shaft 20.

[0071] The third roller shaft 22 is located outside the second roller shaft 21, and the upper surface of the third roller shaft 22 is lower than the upper surface of the second roller shaft 21.

[0072] The fourth roller shaft 23 is located outside the third roller shaft 22, and the upper surface of the fourth roller shaft 23 is lower than the upper surface of the third roller shaft 22.

[0073] The first roller assembly 46 is located outside the first roller shaft 20 and above the second roller shaft 21;

[0074] The second roller assembly 47 is located around the second roller shaft 21 and between the third roller shaft 22 and the first roller assembly 46.

[0075] The third roller assembly 48 is located on the periphery of the third roller shaft 22 and between the fourth roller shaft 23 and the second roller assembly 47.

[0076] The fourth roller assembly 49 is located around the fourth roller shaft 23 and below the third roller assembly 48;

[0077] The housing 11 is located around the fourth roller shaft 23, and the upper surface of the housing 11 is higher than the upper surface of the second roller shaft 21.

[0078] A first filling tube (not shown) is located inside the housing 11;

[0079] A second filling tube (not shown) is located inside the housing 11;

[0080] A third filling tube (not shown) is located inside the housing 11;

[0081] A fourth filling tube (not shown) is located inside the housing 11;

[0082] The first pump head 7 is connected to the housing 11, is correspondingly arranged to the first roller assembly 46, and is connected to the first filling tube;

[0083] The second pump head 8 is connected to the housing 11, is correspondingly arranged to the second roller assembly 47, and is connected to the second filling tube;

[0084] The third pump head 9 is connected to the housing 11, is correspondingly arranged with the third roller assembly 48, and is connected to the third filling tube;

[0085] The fourth pump head 10 is connected to the housing 11, is correspondingly arranged with the fourth roller assembly 49, and is connected to the fourth filling tube.

[0086] As an example, the multi-layer peristaltic pump may further include: a plurality of pump cover assemblies 1, each of which is located around a roller shaft and is detachably mounted on the pump housing; specifically, the plurality of pump cover assemblies 1 are detachably mounted on the housing 11.

[0087] As an example, the plurality of said pump cover assemblies 1 may specifically include:

[0088] The first pump cover assembly (not shown) is located around the first roller shaft 20 and above the second roller shaft 21, corresponding to the first roller assembly 46, and is detachably mounted on the housing 11.

[0089] The second pump cover assembly (not shown) is located around the second roller shaft 21 and between the third roller shaft 22 and the first roller assembly 46. It is correspondingly arranged with the second roller assembly 47 and is detachably installed on the housing 11.

[0090] The third pump cover assembly (not shown) is located on the periphery of the third roller shaft 22 and between the fourth roller shaft 23 and the second roller assembly 47. It is correspondingly arranged with the third roller assembly 48 and can be detachably installed on the housing 11.

[0091] A fourth pump cover assembly (not shown) is located around the fourth roller shaft 23 and below the third roller assembly 48, corresponding to the third roller assembly 48, and is detachably mounted on the housing 11.

[0092] The first filling tube is located between the first pump cover assembly and the first roller assembly 46; the second filling tube is located between the second pump cover assembly and the second roller assembly 47; the third filling tube is located between the third pump cover assembly and the third roller assembly 48; and the fourth filling tube is located between the fourth pump cover assembly and the fourth roller assembly 49.

[0093] Specifically, the housing 11 is used in conjunction with the pump cover assembly 1 to ensure that the pump cover assembly 1 can be easily disassembled and to achieve compression between the pump cover assembly 1 and the silicone tube inside the pump.

[0094] As an example, please combine Figures 1 to 12 See Figure 13 Each of the pump cover assemblies 1 may include: a pump cover 58, wherein the pump cover 58 is detachably connected to the housing 11;

[0095] The pressure tongue 14 is detachably connected to the housing 11 and is located between the pump cover 58 and the filling tube (i.e., the filling tube corresponding to each pump cover assembly; for example, the pressure tongue 14 in the first pump cover assembly is located between the pump cover 58 and the first filling tube in the first pump cover assembly).

[0096] A compression spring 13 is located between the pump cover and the pressure tongue 14;

[0097] Adjusting screw 15 is installed on the pump cover, and one end of the adjusting screw 15 is in contact with the pressure tongue 14.

[0098] Specifically, the first pump cover assembly, the second pump cover assembly, the third pump cover assembly, and the fourth pump cover assembly may each include the pump cover 58, the pressure tongue 14, the compression spring 13, and the adjusting screw 15.

[0099] Specifically, the compression spring 13 provides elastic force to the pressure tongue 14, making the silicone tube inside the pump (i.e., the filling tube corresponding to each pump cover assembly) flexible under the squeezing force of the pressure tongue 14, thus extending the service life of the silicone tube inside the pump.

[0100] The pressure tongue 14 squeezes the silicone tube inside the pump, and the pressure on the silicone tube inside the pump can be freely adjusted by adjusting the limit screw 15 to limit the pressure tongue 14.

[0101] The adjusting screw 15 limits the pressure tongue 14, further adjusting the pressure of the pressure tongue 14 on the silicone tube inside the pump.

[0102] Specifically, the compression spring 13 is installed between the pressure tongue 14 and the pump cover 58, and the adjusting screw 15 is installed on the pump cover 58. The head of the adjusting screw 15 contacts the tail of the pressure tongue 14. Under the elastic force of the compression spring 13, the pressure tongue 14 will press down, and under the upward force of the adjusting screw 15, the pressure tongue 14 will rise. Therefore, turning the adjusting screw 15 can change the downward pressure of the pressure tongue 14.

[0103] Furthermore, the compression spring 13 causes the pressure tongue 14 to press down, and the adjusting screw 15 can control the downward pressure of the pressure tongue 14, which is reflected in the pressure applied by the pump cover assembly 1 to the silicone tube inside the pump. At the same time, due to the presence of the compression spring 13, the compression of the silicone tube inside the pump by the pressure tongue 14 is in a good flexible state, which can effectively extend the service life of the silicone tube inside the pump. The four pump cover assemblies 1 can be freely disassembled and installed with the housing 11 to realize the maintenance and replacement of the silicone tube inside the pump.

[0104] As an example, please combine Figures 1 to 4 See Figures 5 to 12 Each roller assembly includes: a roller flange, a bearing (i.e., bearing + 45), and a roller 50. The roller flange is provided with a flat groove (not shown). The roller flange in each roller assembly is connected to the roller shaft in a one-to-one correspondence.

[0105] Specifically, the first roller assembly 46, the second roller assembly 47, the third roller assembly 48, and the fourth roller assembly 49 each include: a roller flange, a bearing (i.e., bearing + 45), and a roller 50; the roller flange (i.e., the first roller flange 51) in the first roller assembly 46 is connected to the first roller shaft 20; the roller flange (i.e., the second roller flange 52) in the second roller assembly is connected to the second roller shaft 21; the roller flange (i.e., the third roller flange 53) in the third roller assembly is connected to the third roller shaft 22; and the roller flange (i.e., the fourth roller flange 54) in the fourth roller assembly is connected to the fourth roller shaft 23.

[0106] As an example, the diameter of the upper end of the roller is different from the diameter of the lower end of the roller, and the end of the roller with the larger diameter is in contact with the filling tube.

[0107] Specifically, the rollers 50 of the first roller assembly 46, the second roller assembly 47, the third roller assembly 48 and the fourth roller assembly 49 have different diameters at their upper and lower ends. The end with the larger diameter contacts the silicone tube inside the pump and cooperates with the pressure tongue 14 inside the pump cover assembly 1 to squeeze the silicone tube inside the pump.

[0108] The first roller flange 51 is used to install the bearing 45 and connect the first roller shaft 20.

[0109] The second roller flange 52 is used to install the bearing 45 and connect the second roller shaft 21.

[0110] The third roller flange 53 is used to install the bearing 45 and connect the third roller shaft 22.

[0111] The fourth roller flange 54 is used to install the bearing 45 and connect the fourth roller shaft 23.

[0112] Specifically, in the first roller assembly 46, the second roller assembly 47, the third roller assembly 48, and the fourth roller assembly 49, the bearing 45 limits the movement of the roller 50 to prevent it from shaking without affecting its rotation. Multiple bearings 45 and multiple rollers 50 cooperate to form the first roller assembly 46 with two first roller flanges 51, the second roller assembly 47 with two second roller flanges 52, the third roller assembly 48 with two third roller flanges 53, and the fourth roller assembly 49 with two fourth roller flanges 54. The pressure tongue 14 inside the pump cover assembly 1 and the roller assembly compress the silicone tube inside the pump. Due to the presence of the bearing 45, the sliding friction of the roller 50 on the silicone tube inside the pump is changed to rolling friction, effectively reducing the frictional force on the silicone tube and extending its service life.

[0113] Specifically, such as Figure 5 and Figure 6 As shown, the first roller assembly 46 consists of two first roller flanges 51, multiple bearings 45, and multiple rollers 50. The first roller flanges 51 are provided with flat grooves and are connected to the first roller shaft 20, and can rotate under the drive of the first roller shaft 20.

[0114] Specifically, such as Figure 7 and Figure 8 As shown, the second roller assembly 47 consists of two second roller flanges 52, multiple bearings 45, and multiple rollers 50. The second roller flanges 52 are provided with flat grooves and are connected to the second roller shaft 21, and can rotate under the drive of the second roller shaft 21.

[0115] Specifically, such as Figure 9 and Figure 10 As shown, the third roller assembly 48 consists of two third roller flanges 53, multiple bearings 45, and multiple rollers 50. The third roller flanges 53 are provided with flat grooves and are connected to the third roller shaft 22, and can rotate under the drive of the third roller shaft 22.

[0116] Specifically, such as Figure 11 and Figure 12 As shown, the fourth roller assembly 49 consists of two fourth roller flanges 54, multiple bearings 45, and multiple rollers 50. The fourth roller flanges 54 are provided with flat grooves and are connected to the fourth roller shaft 23, and can rotate under the drive of the fourth roller shaft 23.

[0117] As an example, the diameter of the upper end of the roller 50 is different from the diameter of the lower end of the roller 50, and the end of the roller 50 with the larger diameter is in contact with the filling tube.

[0118] As an example, such as Figure 3 and Figure 4 As shown, the multi-channel peristaltic pump filling system also includes a top cover 12, which is located on the housing 11 and connected to the first roller shaft 20.

[0119] Specifically, the top cover 12 is installed on the housing and provides support for the first roller shaft 20 through the bearing 44, ensuring that the first roller shaft 20 will not sway left and right and will not affect its rotation.

[0120] As an example, such as Figures 2 to 4 As shown, the multi-channel peristaltic pump filling system may further include:

[0121] Lower support plate 3;

[0122] Upper support plate 2, which is located on the lower support plate 3;

[0123] A connecting column 4 is located between the lower support plate 3 and the upper support plate 2. The upper surface of the connecting column 4 is connected to the upper support plate 2, and the lower surface of the connecting column 4 is connected to the lower support plate 3.

[0124] Pump body support column 5, which is installed on the upper surface of the upper support plate 2;

[0125] The pump casing fixing column 6 is located between the pump body support column 5 and the housing 11. The upper surface of the pump casing fixing column 6 is connected to the housing 11, and the lower surface of the pump casing fixing column 6 is connected to the pump body support column 5.

[0126] Specifically, the upper support plate 2 connects the pump body support column 5 and the filling machine table (which can be the lower support plate 3), and provides support for the pump body.

[0127] Specifically, the pump body support column 5 is installed on the upper support plate 2, which serves to support the pump casing fixing column 6, the housing 11 and the pump cover assembly 1.

[0128] As an example, there are multiple bearings, multiple bearing end caps, and multiple sliding sleeves; among which...

[0129] Multiple bearings are respectively fitted around the periphery of multiple roller shafts; multiple bearing end caps are respectively fitted around the periphery of some of the bearings; multiple sliding sleeves are respectively fitted around the periphery of some of the roller shafts.

[0130] Specifically, the multi-channel peristaltic pump filling system may further include: bearing 1 28, bearing 2 29, bearing 3 30, bearing 4 31, bearing 5 40, bearing 6 41, bearing 7 42, bearing 8 43, bearing 9 44, second bearing end cap 32, third bearing end cap 33, fourth bearing end cap 34, first sliding sleeve 59, second sliding sleeve 60, and third sliding sleeve 61; wherein,

[0131] The second bearing 29 is located on the lower periphery of the first roller shaft 20; the sixth bearing 41 is located on the middle periphery of the first roller shaft 20 and between the first roller shaft 20 and the second roller shaft 21; the ninth bearing 44 is located on the top periphery of the first roller shaft 20.

[0132] The bearing 30 is located on the lower periphery of the second roller shaft 21; the bearing 42 is located on the periphery of the second roller shaft 21, between the second roller shaft 21 and the third roller shaft 22, and above the bearing 30.

[0133] The bearing 31 is located on the lower periphery of the third roller shaft 22; the bearing 43 is located on the periphery of the third roller shaft 22, between the third roller shaft 22 and the fourth roller shaft 23, and above the bearing 31.

[0134] The bearing 28 and the bearing 40 are both located on the periphery of the fourth roller shaft 23 and are arranged at intervals from bottom to top along the extending direction of the fourth roller shaft 23.

[0135] The second bearing end cap 32 is located on the periphery of the second bearing 29;

[0136] The third bearing end cap 33 is located on the periphery of the bearing 30;

[0137] The fourth bearing end cap 34 is located on the periphery of the bearing 31;

[0138] The first sliding sleeve 59 is located on the periphery of the first roller shaft 20 and between the first roller shaft 20 and the second roller shaft 21;

[0139] The second sliding sleeve 60 is located on the periphery of the second roller shaft 21 and between the second roller shaft 21 and the third roller shaft 22;

[0140] The third sliding sleeve 61 is located on the periphery of the third roller shaft 22 and between the third roller shaft 22 and the fourth roller shaft 23.

[0141] For example, please refer to Figure 4 and Figure 14 The plurality of servo drive systems include: a plurality of servo drive control systems, a plurality of drive motors, a plurality of reducers, and a plurality of gear pairs; wherein, the plurality of servo drive control systems are connected one-to-one with the plurality of first drive motors 16; the plurality of gear pairs are sleeved on the bottom periphery of the plurality of roller shafts and are arranged one-to-one with the roller shafts; the drive motors, the reducers, and the gear pairs are arranged one-to-one, and the drive motors are connected to the gear pairs via the reducers.

[0142] Specifically, the plurality of servo drive systems may include: a first servo drive control system (not shown), a second servo drive control system (not shown), a third servo drive control system (not shown), a fourth servo drive control system (not shown), a first drive motor 16, a first reducer (not shown), a first gear pair 24, a second drive motor 17, a second reducer (not shown), a second gear pair 25, a third drive motor 18, a third reducer (not shown), a third gear pair 26, a fourth drive motor 19, a fourth reducer (not shown), and a fourth gear pair 27; wherein,

[0143] The first servo drive control system is connected to the first drive motor 16, the second servo drive control system is connected to the second drive motor 17, the third servo drive control system is connected to the third drive motor 18, and the fourth servo drive control system is connected to the fourth drive motor 19.

[0144] The first gear pair 24 is located on the bottom periphery of the first roller shaft 20, the second gear pair 25 is located on the bottom periphery of the second roller shaft 21, the third gear pair 26 is located on the bottom periphery of the third roller shaft 22, and the fourth gear pair 27 is located on the bottom periphery of the fourth roller shaft 23.

[0145] The first drive motor 16 is connected to the first gear pair 24 via the first reducer, the second drive motor 17 is connected to the second gear pair 25 via the second reducer, the third drive motor 18 is connected to the third gear pair 26 via the third reducer, and the fourth drive motor 19 is connected to the fourth gear pair 27 via the fourth reducer.

[0146] Specifically, the first gear pair 24 is connected to the first drive motor 16, which transmits the motor power to the first roller shaft 20, and then drives the first roller assembly 46 to rotate through the first roller shaft 20;

[0147] The second gear pair 25 is connected to the second drive motor 17, which transmits the motor power to the second roller shaft 21, and then drives the second roller assembly 47 to rotate through the second roller shaft 21;

[0148] The third gear pair 26 is connected to the third drive motor 18, which transmits the motor power to the third roller shaft 22, and then drives the third roller assembly 48 to rotate through the third roller shaft 22.

[0149] The fourth gear pair 27 is connected to the fourth drive motor 19, which transmits the motor power to the fourth roller shaft 23, and then drives the fourth roller assembly 49 to rotate through the fourth roller shaft 23.

[0150] Specifically, the first pump head 7 is connected to the housing 11. The first pump head 7, together with the first roller assembly 46 and the first roller shaft 20, forms the first layer of pump head, which works in conjunction with the silicone tube inside the pump (i.e. the first filling tube) and the first drive motor 16 to achieve filling.

[0151] The second pump head 8 is connected to the housing 11. The second pump head 8, together with the second roller assembly 47 and the second roller shaft 21, forms a second pump head, which works in conjunction with the silicone tube inside the pump (i.e. the second filling tube) and the second drive motor to achieve filling.

[0152] The third pump head 9 is connected to the housing 11. The third pump head 9, together with the third roller assembly 48 and the third roller shaft 22, forms the third layer of pump head, which works in conjunction with the silicone tube inside the pump (i.e. the third filling tube) and the third drive motor 18 to achieve filling.

[0153] The fourth pump head 10 is connected to the housing 11. The fourth pump head 10, together with the fourth roller assembly 49 and the fourth roller shaft 23, forms the fourth layer of pump head, which works in conjunction with the silicone tube inside the pump (i.e. the fourth filling tube) and the fourth drive motor 19 to achieve filling.

[0154] Specifically, the first roller shaft 20 connects the first gear pair 24 and the first roller assembly 46, and transmits power to the first roller assembly 46; the bottom is fixed by the locking nut 57; the bearings 29, 61 and 94 prevent it from wobbling left and right without affecting its rotation.

[0155] The second roller shaft 21 connects the second gear pair 25 and the second roller assembly 47, and transmits power to the second roller assembly 47; the bottom is limited by the second bearing end cover 32 to limit the bearing 29 and fix the second gear pair 25; a sealing ring 36 is provided between the second roller shaft 21 and the first roller shaft 20 to prevent toxic and harmful gases (if any) from entering the outside of the filling machine; a first sliding sleeve 59 is provided between the second roller shaft 21 and the first roller shaft 20 to prevent direct friction between the two; the bearing 30 and the bearing 42 prevent it from wobbling left and right and do not affect its rotation.

[0156] The third roller shaft 22 connects the third gear pair 26 and the third roller assembly 48, and transmits power to the third roller assembly 48; the bottom is limited by the third bearing end cover 33 to limit the bearing 30 and fix the third gear pair 26; a sealing ring 37 is provided between the third roller shaft 22 and the second roller shaft 21 to prevent toxic and harmful gases (if any) inside the filling machine from entering the outside of the filling machine; a second sliding sleeve 60 is provided between the third roller shaft 22 and the second roller shaft 21 to prevent direct friction between the two; the bearing 41 and the bearing 83 prevent it from swaying left and right without affecting its rotation.

[0157] The fourth roller shaft 23 connects the fourth gear pair 27 and the fourth roller assembly 49, and transmits power to the fourth roller assembly 49; the bottom is limited by the fourth bearing end cap 34 to limit the bearing 31 and fix the fourth gear pair 27; a sealing ring 38 is provided between the fourth roller shaft 23 and the third roller shaft 22 to prevent toxic and harmful gases (if any) from entering the outside of the filling machine; a third sliding sleeve 61 is provided between the fourth roller shaft 23 and the third roller shaft 22 to prevent direct friction between the two; the bearing 28 and the bearing 40 prevent it from wobbling left and right without affecting its rotation.

[0158] Specifically, the lower support plate 3 is connected to the upper support plate 2 via four connecting columns 4, serving to connect the first gear pair 24, the second gear pair 25, the third gear pair 26, and the fourth gear pair 27. At the same time, the lower support plate 3 is also the mounting plate for the first drive motor 16, the second drive motor 17, the third drive motor 18, and the fourth drive motor 19.

[0159] The pump housing fixing column 6 serves as a transition between the pump body support column 5 and the housing 11; together with sealing ring 39 and sealing ring 35, it achieves the sealing between the fourth roller shaft 23 and the inside of the filling machine; together with bearing 28 and bearing 40, it restricts the left and right movement of the fourth roller shaft 23 and does not affect its rotation.

[0160] In summary, the multi-channel peristaltic pump filling system of the present invention has the following beneficial effects:

[0161] 1. All parts are made of 316L or 304 stainless steel that meet GMP requirements, satisfying the needs of various sterilization methods in the pharmaceutical filling industry, such as hydrogen peroxide sterilization, moist heat sterilization, and VHP sterilization, and are suitable for the operating conditions of most peristaltic pumps.

[0162] 2. The stacking of multiple peristaltic pumps (e.g., four layers as described above) greatly reduces the space occupied by the peristaltic pumps in the filling machine;

[0163] 3. Multiple (for example, the four mentioned above) peristaltic pump heads are individually controlled by a servo control system, which can meet the personalized needs of different filling volumes. For example, the first pump head has a filling volume of 1ml, the second pump head has a filling volume of 2ml, the third pump head has a filling volume of 3ml, and the fourth pump head has a filling volume of 4ml.

[0164] 4. The filling volume is compensated by weighing, and the filling volume and filling accuracy will not drift significantly due to wear of the silicone tube inside the pump, making the whole process reliable and controllable.

[0165] Specifically, in this invention, four independent servo drive systems control the first roller shaft 20, the second roller shaft 21, the third roller shaft 22, and the fourth roller shaft 23 respectively, achieving the independence of the four pump heads: the first pump head 7, the second pump head 8, the third pump head 9, and the fourth pump head 10. That is, each pump head can be individually set with a different dosage formula; for example, the first pump head 7 can be set to 1ml, the second pump head 8 to 2ml, the third pump head 9 to 3ml, and the fourth pump head 10 to 4ml. Each roller shaft is equipped with a sealing ring (i.e., sealing ring 35, sealing ring 36, sealing ring 37, sealing ring 38, and sealing ring 39) to ensure that the peristaltic pump filling device 1' is isolated from the external environment. This prevents external air from entering the peristaltic pump filling device 1 and compromising its internal cleanliness level, while also preventing any toxic or harmful gases (if present) from entering the external environment and causing injury or death to personnel. During normal operation, containers 2' are weighed before and after filling, and the difference is fed back to the peristaltic pump control system (i.e., servo drive control system) via a weighing sensor. This allows the peristaltic pump to compensate for its filling volume in real time, avoiding the impact of wear on the silicone tubing inside the pump on filling volume and accuracy after prolonged operation. The four independently controllable peristaltic pump heads are integrated into one unit, greatly reducing the space occupied by the peristaltic pump filling system inside the filling machine. Especially for multi-head filling machines, two four-layer stacked pumps can fill eight containers simultaneously.

[0166] It should be noted that the number of layers of the peristaltic pump, the number of roller shafts, the number of roller assemblies, the number of pump heads, the number of pump cover assemblies, the number of bearings, the number of bearing end caps, the number of sliding sleeves, the number of servo drive systems, the number of drive motors, the number of reducers, and the number of gear pairs, etc., are not limited to the quantities disclosed in the above embodiments. They can be adjusted and set according to actual needs in other embodiments.

[0167] It is understood that the above description uses four independently controllable peristaltic pump heads as an example. Obviously, other embodiments of the present invention may have other numbers of peristaltic pump heads, such as 2, 3, or 5 or more. Those skilled in the art can set the actual configuration quantity according to actual needs. The above four examples are not intended to be a particular limitation of the present invention.

[0168] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0169] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-channel peristaltic pump filling system, characterized in that, include: A peristaltic pump filling device, including a multi-layer peristaltic pump, is used to fill different containers separately; The multi-layer peristaltic pump includes: a plurality of sequentially nested roller shafts, with one end of the outermost roller shafts exposing a portion of the innermost roller shaft; a plurality of roller assemblies, each corresponding to a roller shaft on its periphery; a pump housing, fitted onto the plurality of sequentially nested roller shafts and provided with a plurality of filling tubes; a plurality of pump heads, disposed within the pump housing, each corresponding to a roller assembly and connected to a filling tube; and a plurality of pump cover assemblies, each located on the periphery of a roller shaft and detachably mounted on the pump housing. Each pump cover assembly includes: a pump cover, detachably connected to the pump housing; a pressure tongue, detachably connected to the pump housing and located between the pump cover and the filling tube; a compression spring, located between the pump cover and the pressure tongue; and an adjusting screw, mounted on the pump cover and with one end in contact with the pressure tongue. A weighing assembly is used to weigh the containers before and after filling to obtain the actual filling volume of each of the peristaltic pumps; Multiple servo drive systems are connected one-to-one with the peristaltic pumps in the multi-layer configuration to achieve individual control of each peristaltic pump and are connected to the weighing assembly. The servo drive system is used to set the target filling volume of each peristaltic pump, control each peristaltic pump to fill the container based on the target filling volume, and when the actual filling volume of each peristaltic pump is received from the weighing assembly, the actual filling volume of each peristaltic pump is compared with the target filling volume. If there is a deviation that exceeds the allowable range, the target filling volume of the peristaltic pump with the deviation is compensated, and the peristaltic pump with the deviation is controlled to fill the container based on the supplemented target filling volume. The multiple servo drive systems can simultaneously set different target filling volumes for peristaltic pumps in different layers, achieving multi-channel independent filling control.

2. The multi-channel peristaltic pump filling system according to claim 1, characterized in that, Each of the roller assemblies includes: a roller flange, a bearing, and a roller, wherein the roller flange is provided with a flat groove; wherein, Each roller flange in the roller assembly is connected to each roller shaft in a one-to-one correspondence.

3. The multi-channel peristaltic pump filling system according to claim 2, characterized in that, The diameter of the upper end of the roller is different from the diameter of the lower end of the roller, and the end with the larger diameter of the roller is in contact with the filling tube.

4. The multi-channel peristaltic pump filling system according to claim 1, characterized in that, The pump casing includes a housing and a top cover; the housing is sleeved on the shafts of the plurality of sequentially sleeved rollers; the top cover is located on the housing.

5. The multi-channel peristaltic pump filling system according to claim 4, characterized in that, The multi-channel peristaltic pump filling system also includes: Lower support plate; The upper support plate is located on the lower support plate; A connecting column is located between the lower support plate and the upper support plate. The upper surface of the connecting column is connected to the upper support plate, and the lower surface of the connecting column is connected to the lower support plate. Pump body support column, installed on the upper surface of the upper support plate; A pump casing fixing column is located between the pump body support column and the housing. The upper surface of the pump casing fixing column is connected to the housing, and the lower surface of the pump casing fixing column is connected to the pump body support column.

6. The multi-channel peristaltic pump filling system according to claim 1, characterized in that, The multi-channel peristaltic pump filling system also includes: multiple bearings, multiple bearing end caps, and multiple sliding sleeves; wherein... Multiple bearings are respectively fitted around the periphery of multiple roller shafts; multiple bearing end caps are respectively fitted around the periphery of some of the bearings; multiple sliding sleeves are respectively fitted around the periphery of some of the roller shafts.

7. The multi-channel peristaltic pump filling system according to claim 6, characterized in that, The plurality of servo drive systems include: a plurality of servo drive control systems, a plurality of drive motors, a plurality of reducers, and a plurality of gear pairs; wherein, the plurality of servo drive control systems are connected one-to-one with the plurality of first drive motors; the plurality of gear pairs are sleeved on the bottom periphery of the plurality of roller shafts and are arranged one-to-one with the roller shafts; the drive motors, the reducers, and the gear pairs are arranged one-to-one, and the drive motors are connected to the gear pairs via the reducers.

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