CN218896121U

CN218896121U - PH value automatic checkout equipment

Info

Publication number: CN218896121U
Application number: CN202222881743.7U
Authority: CN
Inventors: 陈立志
Original assignee: Tungray Industrial Automation Equipment Shenzhen Co ltd
Current assignee: Tungray Industrial Automation Equipment Shenzhen Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-04-21
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to the field of automatic detection, in particular to PH value automatic detection equipment, which comprises a frame, a conveying line module, a liquid taking module, a detection module, a NG storage module, a trolley pushing module, a lifting module and an electric control module, wherein the liquid taking module is used for taking liquid, the detection module is used for automatically detecting, and the lifting module is used for separating detected qualified and unqualified samples and respectively sending the qualified samples to the NG storage module and the trolley pushing module. The utility model realizes the automatic detection of the PH values of multiple samples and improves the detection efficiency.

Description

PH value automatic checkout equipment

Technical Field

The utility model relates to the field of automatic detection, in particular to automatic PH value detection equipment.

Background

At present, in the process of measuring the PH value of a sample, most of the pH value is manually measured, and the operation process is as follows: firstly, taking out the test dose in a measuring bottle during test from a sample bottle, then putting a detection rod into a calibration liquid for calibration, then opening a cover of a detection beaker, putting the detection rod into the detection liquid, covering the bottle cover after the detection time is over, and recording detection data. In the operation process, the problems of tedious taking and placing of the detection liquid and low detection efficiency exist.

Chinese patent CN210181024U discloses an automatic pH measuring device, which can realize the automatic test of pH multiple samples. The test sample is manually taken out of the sample bottle, put into the test sample bottle and then automatically tested. Although the test efficiency is improved, in the test process, the sample bottle is manually sampled and prepared; after the test is finished, the test sample bottle needs to be manually replaced, the probe needs to be manually cleaned, the continuous sample feeding and testing of the sample cannot be realized through manual calibration, the automatic calibration and cleaning of the probe cannot be realized, and the test efficiency is relatively low.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an automatic PH value detection device which can complete automatic sampling, continuous sample feeding and discharging, automatic test, automatic calibration of a probe and automatic cleaning. The test efficiency is improved.

In order to solve the technical problems, the technical scheme provided by the utility model is that the PH value automatic detection equipment comprises a frame, wherein a conveying line module, a liquid taking module, a detection module, a NG storage module, a trolley pushing module, a lifting module and an electric control module are arranged on the frame; the conveying line module is positioned below the liquid taking module, and the detection module is positioned below the liquid taking module; the NG storage module and the trolley pushing module are respectively positioned below the detection module; the detection module comprises a detection beaker module, a calibration module and a detection probe module; the conveying line module is used for conveying feeding, buffering and discharging of the beaker group to be detected; the liquid taking module is used for sucking liquid to be detected in the beaker group to be detected and injecting the liquid to be detected into the beaker detecting module; the detection probe module can horizontally and longitudinally displace, and the detection probe module detects the liquid to be detected in the detection beaker module and records and marks the liquid to be detected as well as the qualified liquid and the unqualified liquid; the marking module is used for calibrating a probe of the detection probe module; the lifting module sends the detected beaker groups in the detected beaker detection module into the NG storage module and the trolley pushing module respectively according to the qualified and unqualified marks, and places the empty beaker groups placed in the trolley pushing module into the beaker detection module; the NG storage module is used for storing a detection beaker group of the NG; the trolley pushing module is used for placing the qualified detection beaker group after detection and the empty detection beaker; the electric control module controls the action of each module.

Preferably, the conveyor line module comprises a code scanning gun set for scanning code records of the beaker to be detected.

Preferably, the conveyor line module is further provided with a stop device and a counting sensor.

Preferably, the liquid taking module comprises a linear module, and a cover taking device, a suction pipe device, an injection device and a liquid taking storage device which are arranged on the linear module; the cover taking device and the suction pipe device can synchronously linearly displace up and down, and the liquid taking storage device is communicated with the suction pipe device and the injection device; the cover taking device can be used for taking off or covering the cover of the beaker group to be detected; the suction pipe device can suck the liquid to be detected of the beaker group to be detected under the action of the injection device, and store the liquid in the liquid taking storage device.

Preferably, the cover taking device comprises a pressing cover plate, cover taking concave plates are respectively arranged at two sides of the pressing cover plate at intervals, and the two cover taking concave plates can move towards or away from each other relative to the cover taking pressing plate; when the two cover taking concave plates move in opposite directions, the cover taking pressing plate is positioned in the grooves of the two cover taking concave plates, and the cover with the detection beaker is positioned between the cover taking pressing plate and the two cover taking concave plates.

Preferably, the liquid taking module is further provided with a waste discharging groove and a cleaning groove.

Preferably, the beaker detecting module comprises a detecting platform, wherein a plurality of groups of belt conveying devices are arranged on the detecting platform, and at least one group of beaker detecting groups are placed on each group of belt conveying devices.

Preferably, the horizontal angle of the detection platform is adjustable.

Preferably, the lifting module comprises a lifting platform capable of lifting linearly, a plurality of groups of conveying belts capable of horizontally displacing are arranged on the lifting platform, and each group of conveying belts can rotate independently.

Preferably, the trolley pushing module is provided with a plurality of layers of guide roller conveying belt groups, and each layer of guide roller conveying belt group comprises a plurality of guide roller conveying belts which are arranged in parallel at intervals.

Preferably, the guide roller conveyor belt group is obliquely arranged; the distance between two adjacent guide roller conveying belts is larger than the width of the conveying belt on the lifting module, and the lowest end and the highest end of each guide roller conveying belt are respectively provided with a stop block.

Preferably, the conveying belt of the lifting module can horizontally extend above one end of the guide roller conveying belt.

The PH automatic test equipment can realize continuous sample injection and discharge of multiple samples, realizes automatic sampling through the liquid taking device, and automatically prepares a test sample beaker; the automatic test is realized, and meanwhile, the automatic calibration and cleaning of the probe are realized; the method realizes the separate storage of the samples which are qualified and unqualified in the test. The test equipment has high automation degree, high test efficiency and sanitary and clean use environment.

Drawings

FIG. 1 is a schematic perspective view of an automatic PH value detecting apparatus.

FIG. 2 is a schematic view of another angle of an automatic PH value detecting device

Fig. 3 is a schematic diagram of a conveyor line module structure, in which a long straight line between each group of sensors represents one group of two sensors disposed on both sides of a belt conveyor, and the long straight line does not form the actual structure of the conveyor line module.

Fig. 4 is a schematic diagram of a third belt conveyor.

FIG. 5 is a schematic view of a liquid-extracting module.

FIG. 6 is a schematic view of another angle of the liquid taking module.

FIG. 7 is a schematic view of another angle of the liquid taking module.

Fig. 8 is a schematic view of the structure of the cap removing device.

FIG. 9 is a schematic view of a suction pipe spacing adjustment structure.

Fig. 10 is a schematic structural diagram of the detection device.

Fig. 11 is a schematic diagram of the positional relationship between the lifting module and the detecting device, the trolley pushing module, and the NG storage module.

Fig. 12 is a schematic structural view and a partial enlarged view of the lifting module.

Fig. 13 is a schematic diagram of an NG storage module.

Fig. 14 is a schematic structural view and a partial enlarged view of the cart pushing module.

Detailed Description

The above technical solution, the preferred embodiments are now described in detail with reference to the drawings. PH value automated inspection equipment, see fig. 1 and 2, including frame 1, transfer chain module 2, get liquid module 3, detection module 4, NG deposit module 5, dolly propelling movement module 6, lifting module 7 and automatically controlled module, wherein:

the conveyor line module 2, see fig. 3 and 4, is mounted on the frame 1 for conveying groups of beakers to be tested 33 containing samples to be tested, each group of beakers to be tested 33 having 9 beakers to be tested arranged in a rectangular arrangement.

The conveyor line module 2 is a belt conveyor, and in this embodiment, three belt conveyors are sequentially arranged, from left to right, and a first belt conveyor 21, a second belt conveyor 25, and a third belt conveyor 29 are sequentially arranged. A discharge conveyor section 35 is provided at the end of the third belt conveyor.

A code scanning gun set 23 is arranged between the first belt conveyor and the second belt conveyor and is used for scanning and identifying the two-dimensional code on the beaker to be detected, and marking and recording. The two-dimensional code is attached to the bottleneck of the beaker to be detected, and is positioned at the position which can be scanned by the code scanning gun during feeding. The code scanning gun group 23 is arranged on the brackets on two sides of the belt conveyor in a crossing manner, the code scanning gun group 23 comprises a plurality of code scanning guns which are arranged in a arraying manner, and each code scanning gun corresponds to a group of beakers to be detected passing through from the lower part of each code scanning gun. When each beaker group 33 to be tested is arranged in the arrangement manner of 3*3, the code scanning gun group 23 is arranged to be 3 code scanning guns.

A set of feeding sensor 20 and a discharging sensor 22 are respectively arranged at the front end and the rear end of the first belt conveyor 21, the feeding sensor 20 is used for sensing whether the beaker group 33 is put on the first belt conveyor or not, and the discharging sensor 22 is used for sensing whether the beaker group 33 to be detected is moved to the tail end of the first belt conveyor or not. When the beaker to be detected 33 is placed on the first belt conveyor, the feeding sensor 22 senses the beaker to be detected 33 and then sends sensing information to the electronic control module 8, and the electronic control module 8 controls the first belt conveyor 21 to work.

A set of feeding sensors 28 and a blocking sensor 30 are respectively arranged at the front end and the rear end of the second belt conveyor 25, the feeding sensors 28 are used for sensing whether the beaker group 33 to be detected moves onto the second belt conveyor, and the discharging sensors 27 are used for sensing whether the beaker group 33 to be detected has moved onto the tail end of the second belt conveyor. When the beaker group 33 to be detected moves onto the second belt conveyor, the feeding sensor 24 senses the beaker group 33 to be detected and then sends sensing information to the electronic control module 8, and the electronic control module 8 controls the second belt conveyor 25 to work. An intermediate sensor 26 is also arranged on the second belt conveyor between the feeding sensor 24 and the discharging sensor 27 and is used for sensing the movement position of the beaker group to be detected on the second belt conveyor.

A group of feeding sensors 28 and a blocking sensor 31 are respectively arranged at the front end and the rear end of the third belt conveyor 29, the feeding sensors 28 are used for sensing whether the beaker group 33 moves to the third belt conveyor or not, when the beaker group 33 to be detected moves to the third belt conveyor, the feeding sensors 28 sense the beaker group 33 to be detected, then induction information is sent to the electronic control module 8, and the electronic control module 8 controls the third belt conveyor 29 to work; the blocking sensor 31 is used for sensing whether the beaker group 33 to be detected is moved to the tail end of the third belt conveyor, and when the beaker group to be detected is detected, the blocking block 36 is lifted under the action of the air cylinder to block the path through which the beaker group to be detected passes. The upper end of the baffle block 36 is provided with a roller, when the baffle block blocks the beaker group to be detected, the roller on the baffle block contacts with the front end of the beaker group to be detected, and the impact force caused by the forward movement of the beaker group to be detected is driven by the buffer belt conveyor through the rotation of the roller. The material blocking sensor 31 and the material blocking block 36 form a material blocking device, so that the beakers 33 to be detected are buffered on the conveying line module 2, and the arrangement structure and the liquid taking time of the corresponding beakers to be detected are provided for liquid taking of the liquid taking module.

An intermediate sensor 30 is also arranged on the belt conveyor between the feeding sensor 28 and the blocking sensor 31 on the third belt conveyor and is used for sensing the movement position of the beaker group to be detected on the third belt conveyor.

When the beaker group to be detected blocked by the blocking block 36 is four groups, that is, the feeding sensor, the discharging sensor and the middle sensor on the second belt conveyor 25 and the third belt conveyor 29 all detect the beaker group to be detected 33, the beaker group to be detected is indicated to be four groups which are required, and the beaker group to be detected is arranged according to the arrangement mode of 3 x 12, that is, 3 rows are arranged along the width direction of the belt conveyor, 12 rows are arranged along the length direction of the belt conveyor, and 3 beaker groups to be searched are arranged in each row. Then, the electric control module 8 controls the liquid taking module 3 to act according to the sensor sensing signal, and the sample liquid is taken.

A discharge counting sensor 32 for counting the number of beaker groups to be detected for discharge is provided at one end of the discharge conveying section 35 adjacent to the third belt conveyor 29. After the beakers 33 to be detected passing through the discharge counting sensor 32 accumulate a certain amount, the electronic control module 8 sends out a prompt tone to prompt an operator to take away the beakers to be detected located in the discharge conveying section 35. When the liquid taking module 3 is completed, the baffle block 36 descends to return to the original position under the control of the air cylinder, and the beaker group to be detected moves from the belt conveyor to the discharging conveying section 35. The outfeed count sensor 32 counts as it enters the outfeed conveyor segment 35.

The discharging conveying section 35 is arranged on the bracket 34, is a chute which is obliquely arranged and has a certain length, the tail end and two sides of the chute are provided with baffles, the baffles on the two sides limit the positions of the beaker group to be detected entering the beaker group to be detected, so as to prevent the beaker group to be detected from sliding off from the side, and the baffles at the tail end enable the beaker group to be detected moving at the position of the beaker group to be detected to stop moving. To facilitate sliding of the beaker group to be tested 35 thereon. The discharge conveying section 35 is provided with a plurality of sets of rollers on both sides. The beaker to be detected after liquid taking is sent to the discharging and conveying section 35 for storage, and then is taken away manually.

The liquid taking module 3 is integrally installed on the frame 1 and is positioned above the conveying line module 2, referring to fig. 5 to 9. Comprising the following steps: the rack 1 is provided with a mounting bracket 50, a waste discharge groove 51, a cleaning groove 52, a linear module 53, a cover taking device, a suction pipe device, an injection device and a liquid taking storage device.

The waste discharge tank 51 is used for discharging and storing the redundant liquid to be detected, and the cleaning tank 52 is used for storing the potassium chloride cleaning liquid for cleaning the suction pipe. The linear modules 53 are two groups of linear modules arranged at intervals in parallel and are arranged on the mounting bracket 50 to drive the whole liquid taking module 3 to perform linear displacement. The gantry bracket 60 is erected on the two linear modules 53, and the cover taking device, the suction pipe device, the injection device and the liquid taking storage device are respectively supported by the gantry bracket 60.

A holder 61 is provided on the gantry holder 60, and an injection device is mounted on the holder 61. The injection device comprises injection needle groups arranged in a matrix, the arrangement mode of the injection needle groups is the same as that of 4 groups of beakers to be detected, namely, the arrangement mode of 3 x 12 is that of 3 rows, and each row of 12 injection needle cylinders 59 are arranged. The syringes 59 arranged in rows are fixed to the holder 61, and the height of each row of syringes is flush. One end of the piston rod of each row of the injection syringes 59, which is positioned outside the injection syringes, is connected through a connecting plate, the connecting plate of each row of the injection syringes is connected with one cylinder 62, and the connecting plate drives the piston rod to do linear reciprocating motion relative to the injection syringes under the driving of the cylinder 62, so that liquid suction and liquid discharge are realized. In order to make the movement of the connecting plate stable, the connecting plate can be guided by a guide rod. The three rows of syringes each operate independently through a respective cylinder 62.

An air cylinder 63 is arranged on the gantry bracket 60, the air cylinder 63 is connected with a mounting base, and a suction pipe device and a cover taking device are arranged on the mounting base.

The suction pipe device comprises sliding rails which are arranged in parallel at intervals, and referring to fig. 9, 12 distance adjusting blocks 66 are arranged on each sliding rail, and one suction pipe 58 is arranged on each distance adjusting block 66. The adjacent two distance adjusting blocks 66 are connected through a distance adjusting rod 661, and one end of the distance adjusting rod 661 is provided with a waist-shaped hole along the length direction. One end of the distance adjusting rod is fixedly connected with one distance adjusting block, and the other end of the distance adjusting rod passes through the waist-shaped hole to be connected with the other distance adjusting block through a screw. The installation directions of the distance adjusting rods of the two adjacent distance adjusting blocks are consistent. When the screw is positioned at two ends of the waist-shaped hole of the connecting rod, two spaces between the distance adjusting blocks can be realized. In order to better realize the distance adjustment, a row of 12 distance adjustment blocks are divided into two groups, wherein 6 distance adjustment blocks are respectively connected into one group by two distance adjustment rods, and the other 6 distance adjustment blocks are connected into one group by two distance adjustment rods, and the waist-shaped holes of the distance adjustment rods connected to the two groups of distance adjustment blocks are opposite in direction. Two adjacent distance adjusting blocks of the two groups of distance adjusting blocks are fixed in position. The two ends of the slide rail are respectively provided with a distance adjusting cylinder 65, and the distance adjusting cylinders 65 are respectively connected with distance adjusting blocks 66 at the extreme ends of each group of distance adjusting blocks. Under the action of the adjusting cylinder 65, the screws penetrating through the waist-shaped holes abut against one side of the waist-shaped holes to realize the distance adjustment between the distance adjusting blocks, so that the distance between the suction pipes 58 is adjusted.

A liquid taking and storing device is also installed on the gantry 60. The liquid taking and storing device comprises a plurality of rows of liquid taking containers 64, and one liquid taking container 64 is respectively connected between each injection syringe and the corresponding suction tube. The top of the liquid taking container 64 is communicated with the lower end of the corresponding syringe through a hollow hose, and the bottom of the liquid taking container 64 is communicated with the top of the corresponding suction pipe 58 through a hollow hose. When the plunger rod of the syringe is actuated to aspirate liquid, the liquid aspirated through the pipette is stored in the liquid-sampling container 64, and the pipette can be prevented from dripping.

The cap removing device, see fig. 8, comprises two cap removing concave plates 55, cap removing cylinders 56, cap removing connecting shafts 57 and cap removing pressing plates 67 which are arranged in parallel at intervals. The cover-taking concave plate 55 is provided with a straight long through groove, and the openings of the grooves of the two cover-taking concave plates are opposite. The cover taking pressing plate 67 is located between the two cover taking concave plates 55, and the cover taking pressing plate 67 is connected with the air cylinder 63 through a connecting rod 671. The cap-taking presser 67 is linearly displaceable up and down by the cylinder 63. A cap removing cylinder 56 is provided under the connection rod 671, and a cap removing concave plate 55 is provided under the cap removing cylinder 56. When the cap removing cylinder 56 is actuated, the cap removing concave 55 can be moved toward or away from each other.

When the liquid suction is needed, the linear module 53 is linearly displaced to drive the cap taking device to be displaced above the first row of beakers 33 to be detected, which need to take caps. Stopping the linear module; the cylinder 63 acts to drive the liquid suction device and the cover taking device to move downwards, the cover taking pressing plate 67 of the cover taking device presses the cover of a row of beakers 33 to be detected, the cover taking cylinder 56 acts, the two cover taking concave plates move close, and when the cover taking concave plates are contacted with the beakers to be detected, the action is stopped, at the moment, all the covers of the row of 12 beakers to be detected are positioned between the two cover taking concave plates and the cover taking pressing plate, and then the cylinder 63 drives the cover taking device to move upwards to take off the cover; the linear module is linearly displaced again, so that the first row of suction pipes of the liquid taking device is positioned above the beaker 33 to be detected, the liquid taking device is driven to downwards displace again by the air cylinder 63, the suction pipes extend into the corresponding beaker to be detected, the air cylinder 63 stops acting, the air cylinder 62 on the injection syringe connected with the suction pipes is operated, the piston core rod is pulled outwards, liquid is absorbed, and the absorbed liquid to be detected is reserved in the liquid taking container 64; after the liquid suction is finished, the cylinder 62 stops acting, the cylinder 63 drives the liquid suction device to move upwards, the cylinder 63 stops acting, the linear module drives the cover taking device to move above the beaker to be detected after the sample is taken, the linear module stops acting, and the cylinder 63 acts to drive the cover taking device to move downwards to cover the cover of the beaker to be detected; the cap taking cylinder 56 acts to separate the cap taking concave plates 55 from each other and separate the cap from each other, and the cylinder 63 acts to displace the cap taking device and the suction pipe device upwards, so that one-time liquid taking operation is completed; this operation is then repeated twice, and the liquid is withdrawn from the liquid withdrawal container 64 through the other two rows of pipettes. Then the linear module 53 acts to send the suction pipe device to the upper part of the detection beaker 93, then the suction pipe device is lowered by the air cylinder 63 to enable the suction pipe to extend into the detection beaker 93, the air cylinder 62 acts to inject liquid to be detected into the detection beaker, after the injection is completed, the air cylinder 63 acts to lift the suction pipe device, then the linear module 53 acts to drive the suction pipe device to the upper part of the waste discharge groove 51 to remove redundant residual liquid, then the suction pipe device is sent to the upper part of the cleaning groove 52, and under the combined action of the

air cylinders

63 and 62, the suction pipe repeatedly sucks cleaning liquid to flush the suction pipe for 3 times to complete cleaning work, and next batch of liquid taking work is prepared.

The detection module 4, see fig. 10, is integrally mounted on the frame 1 below the linear module 53. The detection module 4 comprises a detection beaker module, a calibration module and a detection probe module which are sequentially arranged. The lifting module 7 is located between the detection beaker module and the calibration module. The NG storage module 5 and the trolley pushing module 6 are respectively positioned below the detection beaker module and the calibration module and are positioned on two sides of the lifting module 7.

The beaker detection module comprises a detection platform 97, a plurality of belt conveying devices are arranged on the detection platform 97 in parallel, and two adjacent belt conveying devices are separated by a guide plate. The number of the belt conveying devices is the same as the number of the suction pipes in each row, namely, the number of the belt conveying devices is 12. A set of test beakers 93 may be placed on each belt conveyor. The test beakers 93 were placed in a group of 3 on one beaker holder. The number of the detecting beakers placed on the detecting platform 97 is the same as the arrangement mode and the number of the suction pipes. The belt conveying device controls the belt pulley 99 to rotate through the motor 98 to drive the rotating shaft 100 to rotate, so that the belt conveying device acts, and the detection beaker is conveyed to the lifting module from the detection platform 97 or conveyed to the detection platform through the lifting module.

The rotating shaft 96 is connected with the detection platform 97, the rotating shaft 96 is driven to rotate through the belt 95 and the motor 94, and the horizontal placement angle of the detection platform 97 is adjusted, so that the detection platform 97 is conveniently in butt joint with the lifting module 7. After the rotation shaft 96 rotates to adjust the horizontal angle of the detection platform 97, the detection platform is fixed by a key.

The calibration module comprises a calibration platform mounting bracket 89, and a calibration platform 90 is supported by the calibration bracket 89. A calibration beaker 91 is placed on a calibration platform 90. The calibration beakers are arranged in three rows of 12 calibration liquids, namely acid, medium and alkaline, respectively.

The detection probe module comprises a belt conveying device, wherein the belt conveying device comprises a motor 80, a transmission shaft 81 and guide plates 84 arranged at two intervals, and the motor 80 drives the rotation shaft 81 and the transmission belt 82 to rotate, so that a probe assembly arranged on the belt conveying device is driven to linearly displace. The probe assembly comprises two connecting seats 83 arranged on two guide plates 84, an air cylinder 85 is fixedly arranged on the connecting seats 83, a support 86 is arranged on the air cylinder 85, a mounting plate 87 is arranged on the mounting support 86, probes 88 are arranged on the mounting plate 87 at intervals in rows, and the number of the probes 88 is 12. The probe 88 discharges in a manner consistent with the discharge of each row of calibrated beakers and test beakers.

A cleaning tank 92 for cleaning the probe is also arranged between the calibration beaker and the lifting module, and the probe 88 needs to be cleaned before and after use.

The action principle is as follows: the motor 80 rotates to finally drive the probe 88 to move to the cleaning tank 92, and under the action of the air cylinder 85, the probe stretches into the cleaning tank 92 for cleaning. After the cleaning is finished, the probe 88 is lowered into the calibration liquid under the action of the motor 80 and above the calibration beaker 91, and then the cylinder 85 is operated, and the probe is lifted after the calibration time is finished; the motor 80 drives the probe 88 to move towards the detection platform 97 and finally moves to the position above the detection beaker 93, then the air cylinder 85 drives the probe 88 to move downwards into the detection beaker of the detection beaker box 93, after the detection time is over, monitoring data are transmitted to a computer terminal for recording, and corresponding marks are carried out on NG (unqualified) and qualified detection beakers, and unqualified marks are carried out. The above operations are then repeated to sequentially inspect the next two rows of inspection beakers, and after inspection, the probe 88 returns to the original position. When one of the detecting beakers detects NG, the detecting beaker group where the detecting beaker is positioned is judged to be unqualified.

The lifting module 7, referring to fig. 11 and 12, includes two support bases 150 disposed at intervals, a guide shaft 151 and a belt 154 are vertically installed on the support bases 150, and the belt 154 is driven by a motor 152 and a rotation shaft 153. The belt 154 is provided with a mounting base 155, and the mounting base 155 is driven by the belt 154 to move up and down linearly along the guide shaft 150. The lifting platform is arranged on the two mounting bases 155, the air cylinder 156 is arranged on the lifting platform, the air cylinder 156 is connected with the mounting plate arranged on the sliding rail, and 12 groups of conveying belts 157 are arranged on the mounting plate. A guide plate 158 is provided between the adjacent two conveyor belts 157, and the guide plate 158 is provided on the elevating platform. The conveyor belt 157 may extend out of the lift platform under the influence of the air cylinder 156. Each group of conveying belts 157 is connected with a motor 159 through a rotating shaft, and each group of conveying belts 157 can independently rotate under the driving of the motor 159 to carry out conveying work. A set of test beakers may be placed on each set of conveyor belts 157.

The NG storage module 5, see fig. 13, is located on the frame below the calibration beaker, and can be docked with one end of the NG storage module 5 after the lifting platform of the lifting module 7 descends. The NG storage module 5 includes a mounting bracket 121, and an NG platform 122 is mounted on the mounting bracket 121. A plurality of rotary shafts 123 which are parallel at intervals are arranged on the NG platform 122, and the rotary shafts 123 are driven to rotate by a motor 124. The rotating shaft 123 is divided into 12 groups along the length by a partition plate, and each group corresponds to the conveying belt 157 of the lifting module. An inductor 120 is provided at the feed end of NG stage 122, and an inductor 125 and an indicator 126 are provided at the end thereof. The sensor 120 is used for sensing a detection beaker 93 on the lifting platform of the lifting module 7, when the lifting module 7 descends to the feeding end of the NG storage module 5, the sensor 120 senses the detection beaker, and the motor 124 is started to drive the rotating shaft 123 to rotate; meanwhile, the conveying belt 157 of the detection beaker with the NG is operated to convey the detection beaker group NG storage module 5 side of the NG, the NG detection beaker group is conveyed to the tail end from the feeding end of the NG platform through the rotating shaft 123, and when the sensor 125 senses the detection beaker 93, the indicator lamp 126 is turned on to prompt, so that a worker is prompted to take away the detection beaker group of the NG.

The trolley pushing module 6, referring to fig. 14, is a trolley, and is located below the detecting beaker module and on one side of the lifting module 7. The guide roller conveyor belt comprises a shell 130, a plurality of layers of guide roller conveyor belt groups are obliquely arranged in the shell 130 from bottom to top, each layer of guide roller conveyor belt group comprises a plurality of guide roller conveyor belts 131 which are arranged in parallel at intervals, and the lowest end and the highest end of each guide roller conveyor belt 131 are respectively provided with a stop block. The guide roller conveyor belt 131 is composed of a plurality of small roller columns arranged. The guide roller conveyor belt 131 is inclined at 10 degrees to the horizontal plane to facilitate placement of the test beaker 93. The distance between the adjacent two guide roller conveyor belts 131 is larger than the width of the conveyor belt 157, and the width of the support placed by each group of detection beaker group is larger than the width of the conveyor belt 157 and the distance between the two guide roller conveyor belts 131. The lower end of the guide roller conveying belt group is the feeding end which is in butt joint with the lifting module 7. At the beginning, the bottom layer of the guide roller conveyor belt group of the trolley pushing module 6 is not provided with empty detection beakers, and the empty detection beakers are filled up from the 2 nd layer below. When the detecting beaker is taken away from the lower end, the detecting beaker at the upper end slides downwards to the lower end to wait for the next material taking.

An electric control module for controlling the operation of the above modules.

Lifting module 7 and NG deposit module 5, promote dolly module 6, detect the theory of operation between the beaker module 40:

when the trolley pushing module 6 starts to work, the lifting module 7 descends to the bottom of the second layer below the trolley pushing module 6, the conveying belt 157 stretches out under the action of the air cylinder 156 and is positioned between two adjacent guide roller conveying belts, and meanwhile, the conveying belt 157 rotates under the action of the motor 159; with the lifting module 7 continuing to lift, the conveying belt 157 holds the bottom of the empty detection beaker group placed between the two guide roller conveying belts, the empty detection beaker is transferred to the lifting module 7 under the action of the conveying belt 157, and then the conveying belt 157 retracts with the detection beaker under the action of the air cylinder 156, so that the discharging is completed. The lifting module is lifted upwards to be in butt joint with the detection platform 97. Under the combined action of the conveyor belt 157 and the belt conveyor 971, the empty test beaker 93 is transferred to the test beaker platform, waiting for the pipette to inject the liquid to be tested therein.

And after the detection is finished, the probe judges that the corresponding detection beaker is qualified or NG according to the detection structure, and marks the corresponding detection beaker.

After the detection is completed and the marking is performed, the belt conveyor 971 is operated to first send a row of detection beaker groups located at one side of the lifting module 7 to the conveyor belt 157 of the lifting module 7. Then lifting module 7 descends to NG and deposits module 5 feed end, and NG deposits module 5 inductor 120 sense and detect the beaker, and motor 124 on it drives pivot 123 action, under conveyer 157 and pivot 123 combined action, with the detection beaker group of NG send NG to NG deposit module 5, NG deposit module 5 and carry the detection beaker of feed end department to the end, inform the manual work to take away. After NG detection beaker is put, lifting module 7 descends to the position above the bottom layer of pushing trolley module, then under the action of cylinder 156, conveying belt 157 stretches out to be in contact with the guide roller band set, motor 159 acts to drive conveying belt 157 to act, qualified detection beaker group on conveying belt 157 is sent into the guide roller band set, under the combined action of conveying belt 157 and guide roller band set, the guide roller rotates to drive detection beaker group to move towards the high end one end of guide roller band set, and after detection beaker is completely separated from conveying belt, conveying belt 157 retracts under the action of cylinder 156. When the guide roller band group stops rotating, the detection beaker group slides downwards along the inclined angle, and is positioned at the lowest end of the bottom guide roller band group and is blocked by a stop block on the bottom guide roller band group.

After the placement is completed, the lifting module continues to ascend and repeat the actions, and the rest two rows of detection beakers are respectively placed into the NG storage module and the trolley pushing module according to the NG and the qualification.

After all the detecting beakers are placed on the bottom layer, the lifting module rises to the second layer below the trolley pushing module, stretches out the conveying belt 157, pulls the detecting beaker group at the bottom end corresponding to the lifting module, rotates the conveying belt, moves the detecting beaker group onto the lifting module, then retracts the conveying belt, the lifting module rises to be flush with the detecting platform, the conveying belt 157 acts, the belt conveying device 971 of the detecting platform grid acts, and the empty detecting beakers are placed on the detecting platform.

And repeating the operation, when the empty detection beaker of the pushing trolley is used up, pushing the pushing trolley away after the detection beaker is filled, and replacing the trolley pushing module with the other empty detection beaker.

In the utility model, the number of beaker groups to be detected, the number of suction pipes, the number of detecting beakers, the number of probes and the arrangement mode can be customized according to the requirements of customers.

Claims

1. The PH value automatic detection equipment is characterized by comprising a rack, wherein a conveying line module, a liquid taking module, a detection module, a NG storage module, a trolley pushing module, a lifting module and an electric control module are arranged on the rack; the conveying line module is positioned below the liquid taking module, and the detection module is positioned below the liquid taking module; the NG storage module and the trolley pushing module are respectively positioned below the detection module; the detection module comprises a detection beaker module, a calibration module and a detection probe module; the conveying line module is used for conveying feeding, buffering and discharging of the beaker group to be detected;

the liquid taking module is used for sucking liquid to be detected in the beaker group to be detected and injecting the liquid to be detected into the beaker detecting module;

the detection probe module can horizontally and longitudinally displace, and the detection probe module detects the liquid to be detected in the detection beaker module and records and marks the liquid to be detected as well as the qualified liquid and the unqualified liquid;

the marking module is used for calibrating a probe of the detection probe module;

the lifting module sends the detected beaker groups in the detected beaker detection module into the NG storage module and the trolley pushing module respectively according to the qualified and unqualified marks, and places the empty beaker groups placed in the trolley pushing module into the beaker detection module;

the NG storage module is used for storing a detection beaker group of the NG;

the trolley pushing module is used for placing the qualified detection beaker group after detection and the empty detection beaker;

the electric control module controls the action of each module.

2. The automatic PH level detection apparatus according to claim 1, wherein the conveyor line module comprises a code scanning gun set for scanning a code record of a beaker to be detected.

3. The automatic PH value detection apparatus according to claim 1, wherein the conveyor line module is further provided with a dam device and a counting sensor.

4. The automatic PH value detection apparatus according to claim 1, wherein the liquid taking module comprises a linear module, and a cap taking device, a suction pipe device, an injection device, and a liquid taking storage device mounted on the linear module; the cover taking device and the suction pipe device can synchronously linearly displace up and down, and the liquid taking storage device is communicated with the suction pipe device and the injection device; the cover taking device can be used for taking off or covering the cover of the beaker group to be detected; the suction pipe device can suck the liquid to be detected of the beaker group to be detected under the action of the injection device, and store the liquid in the liquid taking storage device.

5. The automatic PH value detection apparatus according to claim 4, wherein the cover removing device comprises cover removing pressing plates, cover removing concave plates are respectively arranged at two sides of the cover removing pressing plates at intervals, and the two cover removing concave plates can move towards or away from the cover removing pressing plates; when the two cover taking concave plates move in opposite directions, the cover taking pressing plate is positioned in the grooves of the two cover taking concave plates, and the cover with the detection beaker is positioned between the cover taking pressing plate and the two cover taking concave plates.

6. The automatic PH value detecting apparatus according to claim 4, wherein the liquid taking module is further provided with a waste discharging tank and a cleaning tank.

7. The automatic PH value detecting apparatus according to claim 1, wherein the detecting beaker module comprises a detecting platform, a plurality of groups of belt conveyor devices are provided on the detecting platform, and at least one group of detecting beaker groups are placed on each group of belt conveyor devices.

8. The PH automatic detection apparatus according to claim 7, wherein the horizontal angle of the detection platform is adjustable.

9. The automatic PH value detection apparatus according to claim 1, wherein the lifting module comprises a lifting platform capable of lifting linearly, and a plurality of groups of conveying belts capable of horizontally displacing are arranged on the lifting platform, and each group of conveying belts can rotate independently.

10. The automatic PH level detection apparatus according to claim 9, wherein the cart pushing module is provided with a plurality of guide roller conveyor belt groups, each guide roller conveyor belt group including a plurality of guide roller conveyor belts arranged in parallel at intervals.

11. The automatic PH level sensing apparatus according to claim 10, wherein the guide roller conveyor belt set is inclined; the distance between two adjacent guide roller conveying belts is larger than the width of the conveying belt on the lifting module, and the lowest end and the highest end of each guide roller conveying belt are respectively provided with a stop block.

12. The automatic PH level sensing apparatus according to claim 11, wherein the conveyor belt of the lifting module is horizontally extendable above one end of the guide roller conveyor belt.