High-efficiency pipette air tightness detection equipment and control method thereofTechnical Field
The present invention relates to an air tightness detecting apparatus, and more particularly, to a highly efficient pipette air tightness detecting apparatus and a control method thereof.
Background
The air tightness detecting device for the pipette is a device for detecting whether the pipette has tightness or not.
The existing air tightness detection device for the pipette has the defects that when the existing air tightness detection device for the pipette is used for detecting the air tightness of the pipette, the air blowing is usually adopted for detecting the air tightness of the pipette, and the detection method is simple and effective, but when the detection is carried out, the phenomenon that the pipette bursts and is damaged due to the fact that excessive air is blown in can occur, the detection efficiency is affected, the waste of resources is caused, in addition, the existing air tightness detection device for the pipette can only detect the pipette independently, each detection time is long, and the overall detection efficiency is low.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide high-efficiency pipette air tightness detection equipment with high automation degree and good detection effect and a control method thereof.
In order to achieve the purpose, the high-efficiency pipette air tightness detection device comprises a frame, wherein a transmission belt is arranged on the frame, a plurality of material placing mechanisms for placing pipettes are arranged on the transmission belt along the length direction of the transmission belt, a tightness detection device is further arranged on the transmission belt, the tightness detection device comprises an adjusting frame arranged on two sides of the transmission belt and an air extraction structure arranged on the adjusting frame, one end of the air extraction structure is connected with a pressure sensor, and a discharging device is further arranged on one side of the frame.
The invention further provides that the material placing mechanism comprises a material conveying frame arranged on two sides of the driving belt, clamping claws arranged on the material conveying frame and a tightening device arranged at the bottom of the clamping claws, and rubber sleeves are further arranged on the clamping claws.
Preferably, the discharging device comprises a discharging plate, positioning rods arranged at two ends of the discharging plate and clamping pieces arranged on the positioning rods, and the distance between the positioning rods is equal to the distance between the material conveying frames.
The invention is further arranged that the air extraction structure comprises a material blocking component arranged at one end of the driving belt and an air extraction component arranged at the other end of the driving belt, the material blocking component comprises a material blocking telescopic rod arranged on the adjusting frame and a plug arranged on the material blocking telescopic rod, and the air extraction component comprises an air extraction telescopic rod arranged on the adjusting frame and a suction head arranged on the air extraction telescopic rod.
Preferably, the rubber films are arranged on the plugs and the pipette tips, and the height of the pipette tips is matched with the height of the pipette tips after the pipette tips are placed on the clamping jaws.
The invention is further characterized in that the transmission belt is also provided with a material returning structure, the material returning structure comprises a material pushing rod arranged at one end of the transmission belt and a collecting frame arranged at the other end of the transmission belt, and the material pushing rod is used for pushing unqualified pipettes on the transmission belt into the collecting frame.
Preferably, the blocking component and the air extraction component are configured to be provided with a plurality of blocking components and air extraction components along the length direction of the driving belt, and the distance between each blocking component and each air extraction component is equal to the distance between each claw.
S1, placing the pipette on a claw of a material placing mechanism, and clamping the pipette by a tightening device at the bottom of the claw;
s2, driving the pipette to move to the tightness detection device by the driving belt;
S3, the blocking component blocks an opening at one end of the pipette, the air extraction component blocks an opening at the other end of the pipette, and the suction head of the air extraction component extends into the pipette;
s4, the air extraction assembly extracts air from the pipette, and the air extraction time is T;
S5, after the time period T, the pressure sensor detects the pressure value P in the pipette, if P is more than 0.5, the current pipette is judged to have more gas, the gas pressure is unqualified, the gas extraction component continues to extract gas and detect, otherwise, if P is less than or equal to 0.5, the current pipette is judged to have qualified gas pressure, and the current pipette is jumped to S6 to continue to detect;
s6, stopping pumping the pipette by the pumping assembly, and simultaneously keeping sealing the pipette for a period of time T1;
S7, after the time period T1, the pressure sensor detects the pressure value P1 in the pipette, if P1-P is more than or equal to 0.25, the current pipette is judged to be poor in tightness, the device records unqualified pipettes, and otherwise, the current pipette is judged to be good in tightness;
s8, continuously moving the transmission belt, detecting whether the current pipette is unqualified or not by the material returning assembly, if so, judging that the current pipette needs material returning, temporarily stopping the transmission belt, simultaneously ejecting the unqualified pipette on the transmission belt to the collecting frame by the material pushing rod for recycling, otherwise, judging that the current pipette is qualified if the current pipette is detected to be qualified, continuously moving the transmission belt, and driving the pipette to move to the discharging device for discharging.
Preferably, the pipette detection in the step S8 further includes the steps of S81, setting the number of the plugging component and the number of the discharging component close to the discharging device in the air extraction structure to be 1, and sequentially numbering the remaining plugging components and the discharging components;
s82, detecting the number of the unqualified pipette as X by the air extraction structure, and continuously moving the driving belt at the same time;
s83, recording the currently detected pipette as Y by the material returning structure, and detecting the pipette passing through the material pushing structure;
S84, counting by Y and +1, detecting Y and X simultaneously, if Y is not equal to X, judging that the pipette at the current material returning structure is qualified, and continuously moving the driving belt, otherwise, judging that the pipette at the current material returning structure is not qualified, and returning the material to the current pipette by the material returning structure.
Through adopting the technical scheme, the automatic transfer device has the beneficial effects that 1, the transfer of the pipette is completed through the transmission belt and the material placing mechanism on the transmission belt, the transmission belt drives the pipette to complete the detection of the air tightness of the pipette through the tightness detection device, meanwhile, the air tightness detection mode is to detect one end of the pipette through the blocking belt and pump air at the other end of the pipette, so that the air pressure inside the pipette is reduced, a pressure maintaining link is added after the air pumping is completed, the air pressure of the pipette is detected in the pressure maintaining process, the air tightness of the pipette is conveniently detected, unqualified products can be automatically removed, the whole automation degree is high, the clamping of the pipette is improved through the clamping jaw arranged in the air tightness detection process, the vibration in the processing process is effectively prevented, the air pumping detection is adopted, the explosion tube in the detection process is prevented, and the safety performance in the detection process is greatly improved.
2. Further, in order to guarantee the continuity of course of working, improve the efficiency of processing, the subassembly of bleeding and putty subassembly in the structure of bleeding sets up to a plurality of groups along the length direction of drive belt for equipment can carry out the gas tightness detection of many pipettes simultaneously, each interval between subassembly of bleeding and the putty subassembly is the same with the interval of each jack catch on the drive belt, further messenger's on the drive belt both ends opening of pipette and subassembly and putty subassembly assorted of bleeding, do not need additionally to carry out the adjustment of position, reduced the degree of difficulty of operation, improved the efficiency of detection, simultaneously, detect the area when leakproofness detection device detects the pipette disqualification, through being provided with the material returning structure on the drive belt, the material pushing structure can carry out the collection of waste material through the ejector pin with disqualified pipette pushing in the collection frame of the drive belt other end, thereby prevent that disqualified pipette from getting into in the finished product and influencing the qualification rate of finished product.
3. Simultaneously, carry out the gas tightness in-process that detects to the pipette, the jack catch press from both sides tight to the pipette, the convenience is bleed subassembly and putty subassembly's location, the putty is grasped and is blockked up the one end of sealing to the pipette, the opening of pipette other end is plugged up to the subassembly that bleeds simultaneously, make the inside sealed relatively that keeps of pipette, simultaneously, bleed subassembly is to the inside of pipette, the pressure value in the pipette reduces this moment, simultaneously, set up minimum pressure value in the pipette and be P, when the atmospheric pressure setting in the pipette is less than P, judge atmospheric pressure in the current pipette and reach the pressurize standard, jump to next step and go on the pressurize operation, if P value is not reached, then continue to bleed, likewise, as the optimization to the gas tightness in-process, if the atmospheric pressure still does not reach the standard of pressurize after the T time, then judge current pipette leakproofness is poor, the standard of air intake when bleeding, if continuous bleed operation to the pipette, can cause the waste of resource still can be caused when producing, through being provided with the biggest inflation time and can be effectively, the problem, further, the atmospheric pressure in the pipette is judged to reach the pressure value in the pipette, if the pressure value is good for the sealing performance of the pipette, the seal the performance of the tip is good, if the seal the performance is good, the performance is not equal to be improved, the tip is good, the performance is equal to 25, and is good to the performance is improved, and is equal to the performance is good, if the performance is had to be had to the up to the seal the tip and has been inserted.
4. Meanwhile, in order to conveniently classify and recycle unqualified pipettes, the device can record the current unqualified pipette numbers, meanwhile, the material returning structure detects the unqualified pipettes, and the unqualified pipettes are pushed into the collecting frame through the pushing rod, specifically, as the material blocking component and the material discharging component on the driving belt are arranged into a plurality of components, the material returning component is used for carrying out material returning operation through the pipettes needing material returning in the material discharging structure, in general, in order to facilitate programming and setting of a program, the component numbers close to the material discharging device are set to be 1, as the material pushing structure is located in the next sequential position of the material discharging structure, for example, when the component numbers are X, the pipettes above the material pushing structure need to move to reach the material returning structure after moving X positions, further, in the processing process, the initial count of the material returning structure is set to be 0, when the material returning structure detects the pipettes, if the count of the material returning structure is the same as the number of the unqualified pipettes, the current pipettes are judged to be the pipettes needing material returning, the material returning component is carried out material returning operation, further, in order to conveniently record, for example, reset the device is required to be carried out material returning operation, for detecting the material returning structure is reset, for detecting the material returning structure is set to be 2, and the material returning structure is detected when the material returning structure is not detected, and the material returning structure is detected to be the material returning structure is detected, and the material is detected to be 0, and the material returning structure is detected when the material is required to be the material.
Drawings
FIG. 1 is a schematic diagram showing a specific construction of an embodiment of a high-efficiency air-tightness detecting apparatus for pipettes and a control method thereof according to the present invention;
FIG. 2 is a flow chart of a control method of an embodiment of a high efficiency pipette air tightness detection device and control method thereof according to the present invention;
Fig. 3 is a flow chart of pipette detection in which reference numerals 1, a frame, 2, a driving belt, 3, a pipette, 4, a material placing mechanism, 41, a material conveying frame, 42, a claw, 43, a tightening device, 44, a rubber sleeve, 5, a tightness detection device, 6, an adjusting frame, 71, a material blocking component, 711, a material blocking telescopic rod, 712, a plug, 72, a gas extraction component, 721, a gas extraction telescopic rod, 722, a suction head, 73, a rubber film, 8, a material discharging device, 81, a material discharging plate, 82, a positioning rod, 83, a clamping piece, 9, a material returning structure, 91, a material pushing rod, 92 and a collecting frame are used for the pipette detection device and the control method embodiment of the high-efficiency pipette air tightness detection device.
Detailed Description
An embodiment of a control method of a high-efficiency pipette air-tightness detection device and a control method embodiment thereof according to the present invention will be further described with reference to fig. 1 to 3.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The utility model provides an efficient pipette gas tightness check out test set, includes frame 1, be equipped with drive belt 2 in the frame 1, drive belt 2 is equipped with a plurality of along its length direction and is used for placing the material mechanism 4 of pipette 3, still be equipped with leakproofness detection device 5 on the drive belt 2, leakproofness detection device 5 is including setting up in the alignment jig 6 of drive belt 2 both sides and setting up the structure of bleeding on alignment jig 6, structure one end of bleeding is connected with pressure sensor, frame 1 one side still is equipped with discharging device 8.
The material placing mechanism 4 comprises a material conveying frame 41 arranged on two sides of the driving belt 2, a claw 42 arranged on the material conveying frame 41 and a tightening device 43 arranged at the bottom of the claw 42, and a rubber sleeve 44 is further arranged on the claw 42.
Preferably, the discharging device 8 comprises a discharging plate 81, positioning rods 82 arranged at two ends of the discharging plate 81, and clamping pieces 83 arranged on the positioning rods 82, wherein the distance between the positioning rods 82 is equal to the distance between the material conveying frames 41.
The air extraction structure comprises a blocking component 71 arranged at one end of the driving belt 2 and an air extraction component 72 arranged at the other end of the driving belt 2, the blocking component 71 comprises a blocking telescopic rod 711 arranged on the adjusting frame 6 and a plug 712 arranged on the blocking telescopic rod 711, and the air extraction component 72 comprises an air extraction telescopic rod 721 arranged on the adjusting frame 6 and a suction head 722 arranged on the air extraction telescopic rod 721.
Preferably, the rubber film 73 is disposed on the stopper 712 and the tip 722, and the height of the tip 722 matches the height of the pipette 3 after the pipette 3 is placed on the claw 42.
The material returning structure 9 is further arranged on the driving belt 2, the material returning structure 9 comprises a material pushing rod 91 arranged at one end of the driving belt 2 and a collecting frame 92 arranged at the other end of the driving belt 2, and the material pushing rod 91 is used for pushing the unqualified pipette 3 on the driving belt 2 into the collecting frame 92.
Preferably, the plugging and pumping assemblies 71 and 72 are arranged in a plurality along the length direction of the belt 2, and the distance between each plugging and pumping assembly 71 and 72 is equal to the distance between each jaw 42.
The material transporting of pipette 3 is accomplished through conveyer belt 2 and the material mechanism 4 of putting on the conveyer belt 2, conveyer belt 2 drive pipette 3 accomplishes the detection to pipette 3 gas tightness through leakproofness detection device 5, simultaneously, the gas tightness detect mode for through plugging up the one end that the area detected pipette 3 and bleed down at the pipette 3 other end to make the inside atmospheric pressure of pipette 3 reduce, add the pressurize link after the completion of bleeding down, detect the atmospheric pressure of pipette 3 in the pressure keeping process, thereby conveniently detect the gas tightness of pipette 3, and can get rid of unqualified product automatically, overall degree of automation is high, and through being provided with multiunit putty subassembly 71 and bleed down subassembly 72, improved holistic machining efficiency, further, carry out the clamp to pipette 3 through being provided with jack catch 42 in the in-process that the gas tightness detected, effectively prevent the vibration in the course of working, just the processing method adopts bleed down detection, prevent the blast pipe in the testing process, the security performance in the testing process has been improved by a wide margin.
Further, in order to guarantee the continuity of course of working, improve the efficiency of processing, the subassembly 72 of bleeding and putty subassembly 71 in the structure of bleeding set up to a plurality of groups along the length direction of drive belt 2 for the equipment can carry out the gas tightness detection of many pipettes 3 simultaneously, each the interval distance between subassembly 72 of bleeding and putty subassembly 71 is the same with the interval distance of each jack catch 42 on the drive belt 2, further messenger's drive belt 2 upper pipette 3's both ends opening and subassembly 72 of bleeding and putty subassembly 71 assorted need not additionally carry out the adjustment in position, the degree of difficulty of operation has been reduced, the efficiency of detection has been improved, simultaneously, detect the area when leakproofness detection device 5 and detect pipette 3 unqualified, through being provided with material returning structure 9 on drive belt 2, material pushing structure can carry out the collection of waste material through pushing away in the collection frame 92 of the other end of push rod 91 with unqualified pipette 3 to the drive belt, thereby prevent that unqualified pipette 3 from getting into in the finished product and influencing the qualification rate of finished product.
The application also provides a control method of the high-efficiency air tightness detection device of the pipette 3, which is characterized by comprising the following steps that S1, the pipette 3 is placed on the claw 42 of the material placing mechanism 4, and the tightening device 43 at the bottom of the claw 42 clamps the pipette 3;
s2, driving the pipette 3 to move to a position of the tightness detection device 5 by the driving belt 2;
S3, the blocking component 71 blocks an opening at one end of the pipette 3, the air suction component 72 blocks an opening at the other end of the pipette 3, and the suction head 722 of the air suction component 72 extends into the pipette 3;
S4, the air suction assembly 72 pumps the pipette 3, and the air suction time is T;
S5, after the time period T, the pressure sensor detects the pressure value P in the pipette 3, if P is more than 0.5, the current pipette 3 is judged to have more gas, the gas pressure is unqualified, the gas extraction component 72 continues to extract gas and detect, otherwise, if P is less than or equal to 0.5, the current pipette 3 is judged to have qualified gas pressure, and the process jumps to S6 to continue to detect;
s6, stopping sucking the pipette 3 by the sucking component 72, and simultaneously keeping the sealing of the pipette 3 for a period of time T1;
S7, after the time period T1, the pressure sensor detects the pressure value P1 in the pipette 3, if P1-P is more than or equal to 0.25, the current pipette 3 is judged to be poor in tightness, the device records unqualified pipettes 3, and otherwise, the current pipette 3 is judged to be good in tightness;
S8, continuously moving the driving belt 2, detecting whether the current pipette 3 is unqualified or not by the material returning assembly, if yes, judging that the current pipette 3 needs material returning, temporarily stopping the driving belt 2, simultaneously ejecting the unqualified pipette 3 on the driving belt 2 to the collecting frame 92 by the material pushing rod 91 for recycling, otherwise, judging that the current pipette 3 is qualified if the current pipette 3 is detected to be qualified, continuously moving the driving belt 2, and driving the pipette 3 to move to the discharging device 8 for discharging.
Preferably, the detecting of the pipette 3 in the step S8 further includes the steps of S81, setting the number of the plugging component 71 and the number of the discharging component close to the discharging device 8 in the air extraction structure as 1, and sequentially numbering the remaining plugging components 71 and the discharging components;
S82, detecting the number of the unqualified pipette 3 as X by the air extraction structure, and simultaneously continuing to move the driving belt 2;
s83, the material returning structure 9 records that the pipette 3 which is currently detected is Y, and simultaneously detects the pipette 3 which passes through the material pushing structure;
and S84, counting +1 by Y, detecting Y and X simultaneously, if Y is not equal to X, judging that the pipette 3 at the current material returning structure 9 is qualified, and continuously moving the driving belt 2, otherwise, if Y is not equal to X, judging that the pipette 3 at the current material returning structure 9 is not qualified, and returning the current pipette 3 by the material returning structure 9.
In the process of detecting the air tightness of the pipette 3, the claw 42 clamps the pipette 3, so that the air suction assembly 72 and the blocking assembly 71 are convenient to position, the blocking material is clamped to block and seal one end of the pipette 3, meanwhile, the air suction assembly 72 blocks the opening at the other end of the pipette 3, so that the interior of the pipette 3 is kept relatively sealed, meanwhile, the air suction assembly 72 pumps the interior of the pipette 3, at the moment, the pressure value in the pipette 3 is reduced, meanwhile, the minimum pressure value in the pipette 3 is set to be P, when the air pressure in the pipette 3 is set to be smaller than P, the air pressure in the current pipette 3 is judged to reach the pressure maintaining standard, the next step is jumped to perform the pressure maintaining operation, if the P value is not reached, the air suction is continued, and likewise, as the optimization in the air tightness detection process, the maximum air suction time T of the air suction assembly 72 is limited, if the air pressure in the pipette 3 still does not reach the pressure maintaining standard after the T time, the current pipette 3 is judged to have poor tightness, the pipette 3 is air-fed while air is pumped, the pressure maintaining standard cannot be reached, if the air pumping operation is continuously carried out on the pipette 3, the production is stopped, the waste of resources is caused, the problem can be effectively avoided by the arrangement of the maximum air-feeding time, further, in the process of pressure maintaining on the pipette 3, if the sealing performance of the pipette 3 is good, the rising amplitude of the pressure value is small in the process of pressure maintaining, if the rising amplitude of the pressure value is more than or equal to 0.25, the current pipette 3 is judged to be unqualified, meanwhile, the rubber film 73 is arranged on the stopper 712 and the suction head 722 of the stopper component 71, and the rubber film 73 can enhance the sealing performance of the mouth of the pipette 3 after the stopper 712 and the suction head 722 are inserted into the pipette 3, the detection precision is improved, and the detection effect is good.
Simultaneously, in order to carry out categorised recovery to unqualified pipette 3 that can be convenient, the device can record current unqualified pipette 3 serial number, simultaneously material returning structure 9 detects unqualified pipette 3 to push into collection frame 92 through pushing rod 91 with unqualified pipette 3, specificly, because putty subassembly 71 and the subassembly 72 of drawing down on the drive belt 2 set up to a plurality of, through numbering each subassembly in the structure of drawing down, in general, in order to make things convenient for the programming and setting of procedure, set up and be close to the subassembly serial number of discharging device 8 department and be 1, because the pushing structure is arranged in the next cis-position of the structure of drawing down, for example, when the subassembly serial number is X, the pipette 3 of its top needs to remove X positions back and reaches material returning structure 9, further, in the course of processing, material returning structure 9's initial count sets up to 0, and when material returning structure 9 detects pipette 3, then count +1, if the count of material returning structure 9 is the same with the serial number of unqualified pipette 3, judges current 3 and is the material returning 3, and in order to make things convenient for the programming and setting up, set up the subassembly serial number 1 near the discharging device is reset, for the automatic count wheel is reset to the order to detect the subassembly, and the material returning structure is 3, and the equipment is reset to be convenient for the material returning structure is in order to detect the size of the equipment is required to be convenient for the material returning structure to be 3, and the equipment is reset to be convenient for the material returning structure is detected to be convenient for the material returning 3.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention, but one skilled in the art can make common changes and substitutions within the scope of the technical solution of the present invention.