A detection module and detection method of a pipette tip intelligent production line system

Abstract

The application discloses a kind of pipette head intelligent production line system detection module and detection method, belong to pipette head detection technical field, including including frame, handling unit and detection unit;The number of handling unit is 2, respectively set at the two ends of frame;Detection unit includes the detection slide table of bearing pipette head and the visual detection device for checking the defect of pipette head, visual detection device is fixedly connected on frame by fixing frame;Detection slide table is slidably arranged on frame;Detection slide table drives pipette head to pass through visual detection device.The application can replace artificial operation, avoids the pollution in the placement process of pipette head, and the placement precision is high, avoids appearing inclination, and the placement and removal of pipette head are all automatic operation, meanwhile, PLC controller can judge good product and non-good product in time according to the video image of detection device, and accurate position is given, and detection efficiency is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipetting head detection, and in particular relates to a detection module and a detection method for a pipetting head intelligent production line system. Background Art

[0002] Pipette tips are a type of consumable material that is widely used in the fields of medicine, biology, chemistry, etc. They are used in conjunction with pipettes to quantitatively measure liquids.

[0003] Qualified pipette heads must go through the production process, the inspection process, and the rejection and replenishment process. In the existing technology, during the process from the production process to the inspection process, the pipette head is manually placed on the inspection rack, and then the inspection rack is placed on the conveyor belt. The conveyor belt carries the inspection rack through the inspection device. After the inspection is completed, the defective products are manually located and rejected, and the inspection efficiency of the pipette head is low. Summary of the Invention

[0004] In order to solve the above problems, the present invention adopts the following technical solutions:

[0005] A detection module of a pipetting head intelligent production line system, comprising a frame, a transport unit and a detection unit;

[0006] There are two transport units, which are respectively arranged at both ends of the frame;

[0007] The inspection unit includes an inspection slide for carrying a pipetting head and a visual inspection device for inspecting defects of the pipetting head, wherein the visual inspection device is fixedly connected to the frame via a fixing bracket;

[0008] The detection slide is slidably arranged on the frame; the detection slide drives the pipetting head to pass through the visual detection device.

[0009] Furthermore, the detection slide includes a first driving device, a platform and multiple groups of detection racks arranged on the platform; the first driving device is arranged on the frame, and the platform is slidably connected to the frame; the first driving device drives the platform to slide relative to the frame; the detection rack is used to carry the pipetting head.

[0010] Furthermore, the visual detection device includes a first visual detection device and a second visual detection device sequentially arranged along the sliding direction of the platform;

[0011] The first visual detection device and the second visual detection device respectively include a first visual detection component and a second visual detection component arranged corresponding to the sliding track of the detection frame. The first visual detection device includes a first detection camera and a first fixed light source arranged up and down and fixedly connected to the fixed frame. The first detection camera and the first fixed light source are arranged correspondingly. The sliding track of the detection frame is located between the first detection camera and the first fixed light source.

[0012] The second visual inspection device includes a second inspection camera and a second fixed light source, which are arranged on both sides of the inspection frame sliding track and fixedly connected to the fixed frame. The second inspection camera and the second fixed light source are arranged correspondingly; the inspection frame sliding track is located between the second inspection camera and the second fixed light source.

[0013] Furthermore, it also includes a PLC controller, and the first detection camera and the second detection camera are both connected to the PLC controller by signal. The first detection camera and the second detection camera upload the detection video image of the pipetting head to the PLC controller, and the PLC controller makes a judgment on good and bad products, and gives the specific locations of good and bad products.

[0014] Furthermore, the transport unit includes a support frame, a transport arm lifting assembly and a pipette head suction head assembly, the support frame is fixedly connected to the frame; the transport arm lifting assembly can be slidably arranged on the support frame; the pipette head suction head assembly can be slidably arranged on the transport arm lifting assembly; the pipette head suction head assembly is used for adsorption and release of the pipette head.

[0015] Furthermore, the transport arm lifting assembly includes a second drive device, a mounting plate and a cross plate; the second drive device is arranged on the support frame, and the mounting plate is slidably connected to the support frame; the cross plate is fixedly connected to the lower end of the mounting plate and is arranged vertically with the mounting plate; the second drive device drives the mounting plate to slide relative to the support frame; the pipette head suction tip assembly is slidably arranged on the cross plate.

[0016] Furthermore, the pipette tip assembly includes a pipette tip, a mounting seat, an air pipe and a third driving device fixed on the horizontal plate; the mounting seat is slidingly connected to the horizontal plate; the mounting seat is fixedly connected to the driving end of the third driving device; an air duct is provided in the mounting seat, the pipette tip is provided corresponding to the air duct, and is fixedly connected to the lower end of the mounting seat; the air pipe is connected to the air duct.

[0017] A method for detecting a pipetting head intelligent production line system, using the detection module of the above-mentioned pipetting head intelligent production line system, the detection method includes the following steps:

[0018] In the loading step, the material enters the loading station through the handling device;

[0019] In the inspection step, the inspection slide drives the material through the visual inspection device. The visual inspection device obtains a video image of the material on the inspection slide and transmits it to the PLC controller. The PLC controller judges whether the material is good or bad based on the video image and gives the specific location of the good and bad products.

[0020] In the discharging step, the detection slide drives the detection frame into the discharging station to discharge the material.

[0021] Furthermore, the judgment contents of good products and bad products in the detection step include the cape at the tip of the pipette head, the diameter size of the circular hole at the tip of the pipette head, and whether there is a lack of material at the tip of the pipette head.

[0022] Beneficial effects:

[0023] The present invention provides a method for replacing manual operation and automatically placing a pipette head on a detection rack, thereby avoiding contamination during the placement of the pipette head, having high placement accuracy and avoiding tilting. The placement and removal of the pipette head are both automated operations. At the same time, the PLC controller can promptly determine good products and bad products based on the video images of the detection device and give the accurate position, thereby achieving high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention (without protective cover)

[0025] Figure 2 Front view of the present invention (without protective cover)

[0026] Figure 3 A top view of the present invention (without protective cover)

[0027] Figure 4 A top view of the present invention (without protective cover and platform)

[0028] Figure 5 Schematic diagram of the overall structure of the present invention with a protective cover

[0029] Among them, 1. frame; 2. first drive motor; 3. first drive gear; 4. first toothed transmission belt; 5. first driven gear; 6. platform; 7. first synchronous wheel; 8. second fixed light source; 9. second detection camera; 10. first detection camera; 11. first fixed light source; 12. first transmission shaft; 13. fixed frame; 14. detection frame; 15. support frame; 16. second drive motor; 17. second drive gear; 18. second toothed transmission belt; 19. second transmission shaft; 20. first sealing cover; 21. second synchronous pulley; 22. second synchronous belt; 23. first mounting seat; 24; second mounting seat; 25. third drive device I; 26. third drive device II; 27. horizontal plate; 28. support plate; 29. ​​first slider; 30. first slide rail; 31. second sealing cover; 32. mounting plate. DETAILED DESCRIPTION

[0030] Example 1

[0031] A detection module for a pipette head intelligent production line system includes a frame 1, a transport unit and a detection unit; there are two transport units, one of which is arranged at each end of the frame 1; the detection unit includes a detection slide for carrying the pipette head and a visual detection device for inspecting defects in the pipette head, the visual detection device being fixedly connected to the frame 1 via a fixing frame 13; the detection slide is slidably arranged on the frame 1; the detection slide drives the pipette head through the visual detection device.

[0032] Among them, the two transport units are used to transport the pipette head to be tested from the previous process to the detection unit, and to transport the pipette head that has completed detection by the detection unit to the next process.

[0033] In this embodiment, the detection slide includes a first driving device, a platform 6 and multiple groups of detection racks 14 arranged on the platform 6; the first driving device is arranged on the frame 1, and the platform 6 is slidably connected to the frame 1; the first driving device drives the platform 6 to slide relative to the frame 1; the detection rack 14 is used to carry the pipetting head.

[0034] The first driving device includes a first driving motor 2 and a first transmission shaft 12 .

[0035] The first drive motor 2 is arranged at one end of the frame 1, and the first transmission shaft 12 is arranged corresponding to the first drive motor 2 and is rotatably arranged on the frame 1; the output end of the first drive motor 2 is provided with a first drive gear 3, and the first driven gear 5 is fixedly connected to the first transmission shaft 12, and the first drive gear 3 drives the first driven gear 5 to rotate through the first toothed transmission belt 4.

[0036] A first synchronous wheel 7 is provided on the first transmission shaft 12 , and a first idler wheel rotatable relative to the first drive motor 2 is provided at one end of the frame 1 away from the first drive motor 2 . A first synchronous belt is sleeved on the first synchronous wheel 7 and the outer side of the first idler wheel.

[0037] In this embodiment, the first transmission shaft 12 is composed of two parts, namely, a first transmission shaft I and a first transmission shaft II, which are connected by a coupling. The first driven gear 5 is provided on the first transmission shaft 12. There are two first synchronous gears 7, one each provided at the end of the first transmission shaft I and the other at the end of the first transmission shaft II away from the coupling.

[0038] The platform 6 is fixedly connected to the support plate 28. The frame 1 is provided with a first slide rail 30, the support plate 28 is provided with a first slider 29, the first slider 29 is provided with a first slide groove, and the first slide groove is slidably matched with the first slide rail 30.

[0039] The support plate 28 is provided with a first positioning clamping block. The first positioning clamping block is provided with a first positioning tooth. The first positioning tooth cooperates with the first synchronous belt to fix the relative position between the support plate 28 and the first synchronous belt.

[0040] The first synchronous belt cooperates with the first synchronous pulley and the first idler pulley, and drives the platform 6 to slide relative to the frame 1 through the support plate 28.

[0041] In this embodiment, the visual detection device includes a first visual detection device and a second visual detection device sequentially arranged along the sliding direction of the platform 6;

[0042] Among them, the first visual detection device and the second visual detection device respectively include a first visual detection component and a second visual detection component arranged corresponding to the sliding track of the detection frame 14. The first visual detection device includes a first detection camera 10 and a first fixed light source 11 arranged up and down and fixedly connected to the fixed frame 13. The first detection camera 10 and the first fixed light source 11 are arranged correspondingly; the sliding track of the detection frame 14 is located between the first detection camera 10 and the first fixed light source 11;

[0043] The second visual inspection device includes a second inspection camera 9 and a second fixed light source 8, which are arranged on both sides of the sliding track of the inspection frame 14 and fixedly connected to the fixed frame 13. The second inspection camera 9 and the second fixed light source 8 are arranged correspondingly; the sliding track of the inspection frame 14 is located between the second inspection camera 9 and the second fixed light source 8.

[0044] The inspection module of the intelligent production line system for the pipette head provided in this embodiment also includes a PLC controller. The first inspection camera 10 and the second inspection camera 9 are both connected to the PLC controller signal. The first inspection camera 10 and the second inspection camera 9 upload the inspection video image of the pipette head to the PLC controller. The PLC controller makes a judgment on good and bad products, and gives the specific positions of good and bad products in the inspection rack 14.

[0045] In this embodiment, the transport unit includes a support frame 15, a transport arm lifting assembly and a pipette tip assembly. The support frame 15 is fixedly connected to the frame 1 for fixed support; the transport arm lifting assembly can be slidably arranged on the support frame 15; the pipette tip assembly can be slidably arranged on the transport arm lifting assembly; the pipette tip assembly is used for adsorption and release of the pipette head.

[0046] The transport arm lifting assembly includes a second drive device, a mounting plate 32 and a transverse plate 27 .

[0047] The second driving device is arranged on the support frame 15, and the mounting plate 32 is slidably connected to the support frame 15; the cross plate 27 is fixedly connected to the lower end of the mounting plate 32 and is arranged perpendicular to the mounting plate 32; the second driving device drives the mounting plate 32 to slide relative to the support frame 15; the pipette head assembly is slidably arranged on the cross plate 27.

[0048] The second driving device includes a second driving motor 16 , a second driving gear 17 , a second driven gear, a second toothed transmission belt 18 and a second transmission shaft 19 .

[0049] The second drive motor 16 is fixedly connected to the top of the support frame 15, the second drive gear 17 is fixedly connected to the driving end of the second drive motor 16, and the second driven gear is fixedly connected to the second transmission shaft 19; the second transmission shaft 19 is rotatably provided at the upper end of the support frame 15; the second drive gear 17 drives the second driven gear to rotate through the second toothed transmission belt 18;

[0050] The support frame 15 is provided with a second slide rail, the mounting plate 32 is provided with a second slider, and the second slider is provided with a second slide groove; the second slide groove is slidably engaged with the second slide rail;

[0051] A second synchronous pulley 21 is provided on the second transmission shaft 19, and a second idler wheel is provided at the lower end of the support frame 15. The second synchronous pulley 21 and the outer side of the second idler wheel are sleeved with a second synchronous belt 22; the mounting plate 32 is provided with a second positioning clamp, and the second positioning clamp is provided with a second positioning tooth. The second positioning tooth cooperates with the second synchronous belt 22 to fix the relative position between the mounting plate 32 and the second synchronous belt 22.

[0052] The second synchronous belt 22 cooperates with the second synchronous pulley 21 and the second idler pulley to drive the mounting plate 32 to slide up and down relative to the support frame 15 .

[0053] The pipette tip assembly includes a pipette tip, a mounting base, an air pipe and a third drive device fixed on the horizontal plate 27; wherein, the mounting base is slidingly connected to the horizontal plate 27; the mounting base is fixedly connected to the driving end of the third drive device; an air channel is provided in the mounting base, and the pipette tip is provided corresponding to the air channel and fixedly connected to the lower end of the mounting base; the air pipe is connected to the air channel.

[0054] In this embodiment, the third driving device includes a third driving device II 26 and a third driving device I 25 , and the mounting seat includes a first mounting seat 23 and a second mounting seat 24 .

[0055] Among them, the first mounting seat 23 and the second mounting seat 24 are both provided with a third slide groove, and the third slide rail is provided at the bottom of the cross plate 27, and the third slide groove and the third slide rail are slidably matched; the first mounting seat 23 and the second mounting seat 24 are fixedly connected to the driving end of the third driving device II 26 and the driving end of the third driving device I 25 respectively; airways are both provided in the first mounting seat 23 and the second mounting seat 24, and the pipette head suction head is provided corresponding to the airway and is fixedly connected to the lower end of the first mounting seat 23 and the second mounting seat 24; the trachea is connected to the airway.

[0056] In this embodiment, the third driving device II 26 and the third driving device I 25 may be air cylinders or hydraulic cylinders, preferably air cylinders.

[0057] In this embodiment, there are two first mounting seats 23, two second mounting seats 24, two third driving devices II 26, and two third driving devices I 25, which are respectively arranged on both sides of the width direction of the horizontal plate 27; among them, the two first mounting seats 23 and the two second mounting seats 24 all slide toward each other.

[0058] In this embodiment, the outer covers of the first driving motor 2 and the first driving gear 3 are provided with a first sealing cover 20 , and the first sealing cover 20 is fixedly connected to the top of the support frame 15 .

[0059] A second sealing cover 31 is provided outside the second driving gear 17 and the second driving motor 16 .

[0060] Example 2

[0061] A method for detecting a pipetting head intelligent production line system, using the detection module of the pipetting head intelligent production line system provided in Example 1, the detection method comprises the following steps:

[0062] In the loading step, the material enters the loading station through the handling device;

[0063] In the inspection step, the inspection slide drives the material through the visual inspection device. The visual inspection device obtains a video image of the material on the inspection slide and transmits it to the PLC controller. The PLC controller determines whether the material is good or bad based on the video image and gives the specific location of the good and bad products;

[0064] In the discharging step, the detection slide drives the detection frame 14 into the discharging station to discharge the material.

[0065] In the inspection steps of this embodiment, the judgment contents of good and bad products include the cape at the tip of the pipette head, the diameter of the circular hole at the tip of the pipette head, and whether there is a lack of material at the tip of the pipette head.

[0066] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A detection module for a pipetting head intelligent production line system, characterized in that: It includes a frame, a handling unit and a detection unit; There are two transport units, which are respectively arranged at both ends of the frame; The detection unit includes a detection slide for carrying the pipetting head and a visual detection device for inspecting defects of the pipetting head. The visual inspection device is fixedly connected to the frame via a fixing bracket; The detection slide is slidably arranged on the frame; the detection slide drives the pipetting head through the visual detection device; The detection slide comprises a first driving device, a platform, and a plurality of detection racks arranged on the platform; the first driving device is arranged on the frame, and the platform is slidably connected to the frame; the first driving device drives the platform to slide relative to the frame; the detection rack is used to carry a pipetting head; Wherein, the first driving device includes a first driving motor and a first transmission shaft; The first drive motor is disposed at one end of the frame, and the first transmission shaft is disposed corresponding to the first drive motor and is rotatably disposed on the frame; a first drive gear is disposed at the output end of the first drive motor, and a first driven gear is fixedly connected to the first transmission shaft, and the first drive gear drives the first driven gear to rotate via a first toothed transmission belt; A first synchronous wheel is provided on the first transmission shaft, and a first idler wheel rotatable relative to the first drive motor is provided at one end of the frame away from the first drive motor, and a first synchronous belt is provided on the outer sides of the first synchronous wheel and the first idler wheel; The first transmission shaft is composed of two parts, namely a first transmission shaft I and a first transmission shaft II, the first transmission shaft I and the first transmission shaft II are connected by a coupling, and the first driven gear is provided on the first transmission shaft; Wherein, the first synchronous wheels are two and are respectively arranged at the end positions of the first transmission shaft I and the first transmission shaft II away from the coupling; The platform is fixedly connected to the support plate; wherein the frame is provided with a first slide rail, the support plate is provided with a first slider, the first slider is provided with a first slide groove, and the first slide groove is slidably engaged with the first slide rail; The support plate is provided with a first positioning clamping block, the first positioning clamping block is provided with a first positioning tooth, and the first positioning tooth cooperates with the first synchronous belt to fix the relative position between the support plate and the first synchronous belt.

2. The detection module of the pipetting head intelligent production line system according to claim 1, characterized in that: The visual detection device includes a first visual detection device and a second visual detection device sequentially arranged along the sliding direction of the platform; wherein the first visual detection device and the second visual detection device respectively include a first visual detection component and a second visual detection component arranged corresponding to the sliding track of the detection frame, and the first visual detection device includes a first detection camera and a first fixed light source arranged up and down and fixedly connected to the fixed frame, and the first detection camera and the first fixed light source are arranged correspondingly; the sliding track of the detection frame is located between the first detection camera and the first fixed light source; The second visual inspection device includes a second inspection camera and a second fixed light source which are arranged on both sides of the sliding track of the inspection frame and fixedly connected to the fixed frame, and the second inspection camera and the second fixed light source are arranged correspondingly; The detection frame sliding track is located between the second detection camera and the second fixed light source.

3. The detection module of the pipetting head intelligent production line system according to claim 2, characterized in that: It also includes a PLC controller, and the first detection camera and the second detection camera are both connected to the PLC controller signal. The first detection camera and the second detection camera upload the detection video image of the pipetting head to the PLC controller, and the PLC controller makes a judgment on good and bad products, and gives the specific locations of good and bad products.

4. The detection module of the pipetting head intelligent production line system according to claim 3, characterized in that: The transport unit includes a support frame, a transport arm lifting assembly and a pipette head suction head assembly. The support frame is fixedly connected to the frame; the transport arm lifting assembly can be slidably arranged on the support frame; the pipette head suction head assembly can be slidably arranged on the transport arm lifting assembly; the pipette head suction head assembly is used for adsorbing and releasing the pipette head.

5. The detection module of the pipetting head intelligent production line system according to claim 4, characterized in that: The transport arm lifting assembly includes a second drive device, a mounting plate and a cross plate; the second drive device is arranged on the support frame, and the mounting plate is slidably connected to the support frame; the cross plate is fixedly connected to the lower end of the mounting plate and is arranged perpendicular to the mounting plate; the second drive device drives the mounting plate to slide relative to the support frame; the pipette head suction head assembly is slidably arranged on the cross plate.

6. The detection module of the pipetting head intelligent production line system according to claim 5, characterized in that: The pipette head suction tip assembly includes a pipette head suction tip, a mounting seat, an air pipe and a third driving device fixed on the horizontal plate; the mounting seat is slidably connected to the horizontal plate; the mounting seat is fixedly connected to the driving end of the third driving device; an air channel is provided in the mounting seat, the pipette head suction tip is provided corresponding to the air channel, and is fixedly connected to the lower end of the mounting seat; the air pipe is connected to the air channel.

7. A detection method for a pipetting head intelligent production line system, characterized in that: Using the detection module of the pipetting head intelligent production line system according to claim 6, the detection method includes the following steps: In the loading step, the material enters the loading station through the handling device; In the inspection step, the inspection slide drives the material through the visual inspection device. The visual inspection device obtains a video image of the material on the inspection slide and transmits it to the PLC controller. The PLC controller judges whether the material is good or bad based on the video image and gives the specific location of the good and bad products. In the discharging step, the detection slide drives the detection frame into the discharging station to discharge the material.

8. The detection method of the pipetting head intelligent production line system according to claim 7, characterized in that: The judgment contents of good and bad products in the inspection step include the cape at the tip of the pipette head, the diameter size of the circular hole at the tip of the pipette head, and whether there is a lack of material at the tip of the pipette head.

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