CN202394126U - Controller for sampling machine rotary table - Google Patents
Controller for sampling machine rotary table Download PDFInfo
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- CN202394126U CN202394126U CN2011205377237U CN201120537723U CN202394126U CN 202394126 U CN202394126 U CN 202394126U CN 2011205377237 U CN2011205377237 U CN 2011205377237U CN 201120537723 U CN201120537723 U CN 201120537723U CN 202394126 U CN202394126 U CN 202394126U
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- loop
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- 238000005070 sampling Methods 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 claims description 5
- 230000004807 localization Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 7
- 101000604592 Homo sapiens Keratin-like protein KRT222 Proteins 0.000 description 3
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- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a controller for a sampling machine rotary table, comprising a PLC control module, a frequency converter, a rotary table rotation-out loop and a rotary table rotation-back loop, wherein the PLC control module is connected with the frequency converter, the rotary table rotation-out loop and the rotary table rotation-back loop respectively, the rotary table rotation-out loop and the rotary table rotation-back loop are respectively provided with a first limit switch and a second limit switch, the first and second limit switches are mounted on the rotary table and respectively connected with the PLC control module, and the PLC control module controls the frequency converter to stop running when the rotary table rotates to the position of the first limit switch or the position of the second limit switch. The controller for a sampling machine rotary table can enable a sampling machine to be more optimized and safer, simultaneously reduces equipment maintenance cost, increases equipment utilizing rate, and enables the equipment to be more people-oriented, thereby embodying the important idea of safety first and ensuring the safety of the equipment and sampling personnel.
Description
Technical field
The utility model relates to the sampling mechanical field, is meant a kind of Sampling Machine turntable control device especially.
Background technology
Inner and outer rings train automatic sampling machine is since be installed to use; Exist the cantilever sampling head always and in rotation, hit the room potential safety hazard, what hidden danger mainly showed is: carry out in the sampling process when the sampling cantilever begins to rotate in Sampling Machine, the limit switch of installing on the turntable is in a single day malfunctioning; Sampling arm is out of hand in rotation process to sail towards crushing plant or central station of floating dock direction; If the sample man does not in time find this type of fault at central station of floating dock, consequence is that the sampling cantilever of Sampling Machine bumps against on crushing plant or the central station of floating dock house, causes crushing plant or central station of floating dock house to damage; The sampling head of automatic sampling machine breaks; The rotary tray motor of Sampling Machine and reductor damage, even injure personnel, and this type of fault has a strong impact on equipment and personal safety, has a strong impact on normal production.The reason that this type of fault takes place is:
1, inner and outer rings train automatic sampling machine is not installed limit bit switch.The Sampling Machine turntable is left and right respectively installs a limit switch, has only a limit switch by the control of PLC control module, when turntable produces; When turntable forwards limitation travel switch to, a baffle plate is installed on the turntable, baffle plate is run into limitation travel switch; Travel switch breaks off, and the converter power supply of turntable breaks off, and turntable is just out of service like this; If this spacing travel switch is malfunctioning or damage; Converter power supply breaks not open, and turntable continues rotation, and the sampling arm on the turntable just hits to colored steel house, sample preparation chamber.When turntable goes back to, when turntable forwards limitation travel switch to, a baffle plate is installed on the turntable; Baffle plate is run into limitation travel switch, and travel switch breaks off, and the converter power supply of turntable breaks off; Turntable is just out of service like this, if this spacing travel switch is malfunctioning or damage, converter power supply breaks not open; Turntable continues rotation, and the sampling arm on the turntable hits to the house, pulpit.
2, the Sampling Machine turntable produces the position, goes back to the position limitation travel switch respectively is installed, in case two limitation travel switches are malfunctioning, remedial measures is let alone to rotate never again, and till hitting the room, it is bad to cause the room to ruin machine.
The utility model content
In view of this, the purpose of the utility model is to propose a kind of Sampling Machine turntable control device, to eliminate safe hidden trouble, reduces fault and raising equipment and personnel's safety coefficient.
Based on a kind of Sampling Machine turntable control device that above-mentioned purpose the utility model provides, comprising: PLC control module, frequency converter, turntable produce the loop and turntable goes back to the loop; The PLC control module produces loop and turntable with frequency converter, turntable respectively and goes back to the loop and link to each other; Said turntable produces in the loop to go back to turntable and is respectively arranged with first limit bit switch and second limit bit switch in the loop; Said first limit bit switch and second limit bit switch are installed on the turntable, and are connected respectively to the PLC control module; When said PLC control module rotated to said first limit bit switch or second limit bit switch position at turntable, it was out of service to control said frequency converter.
Preferably, said turntable produces loop and turntable and goes back to and have first limitation travel switch and second limitation travel switch in the loop respectively; First limitation travel switch and second limitation travel switch are installed on the turntable.Described first limit bit switch is arranged on after first limitation travel switch, and second limit bit switch is arranged on after second limitation travel switch; Said PLC control module links to each other respectively with second limitation travel switch with said first limitation travel switch; When turntable touches first limitation travel switch or second limitation travel switch or first limit bit switch or second limit bit switch; Close frequency converter, stop the rotation of turntable.
Preferably, said turntable produces loop and turntable and goes back between the positive pole and negative pole that the loop is parallel to power supply; Said turntable produces the loop and has first contactor coil and first contacts of contactor, and said first limitation travel switch is connected between said first contactor coil and first contacts of contactor with after said first limit bit switch is connected.Said turntable goes back to the loop and has second contactor coil and second contacts of contactor, and said second limitation travel switch is connected between said second contactor coil and second contacts of contactor with after said second limit bit switch is connected.
Preferably, said Sampling Machine turntable control device also comprises first baffle plate and second baffle.
When said first baffle plate or second baffle produce said first limitation travel switch or first limit bit switch position at turntable, be installed on the turntable; First baffle plate or second baffle are run into said first limit switch or first limit bit switch; Said first limit switch or first limit bit switch are broken off; Said PLC control module detects first limit switch or first limit bit switch breaks off, and then closes frequency converter, stops the rotation of turntable.
When said first baffle plate or second baffle rotate back into said second limitation travel switch or second limit bit switch position at turntable, be installed on the turntable; First baffle plate or second baffle are run into said second limit switch or second limit bit switch; Said second limit switch or second limit bit switch are broken off; Said PLC control module detects second limit switch or second limit bit switch breaks off, and then closes frequency converter, stops the rotation of turntable.
Preferably, said first limit bit switch and second limit bit switch are installed on the turntable, and the sampling head of pivot arm will bump against the critical localisation of sample preparation chamber.
Preferably, when said first baffle plate or second baffle produce said first limitation travel switch or first limit bit switch position at turntable, be installed on the turntable and said first limitation travel switch or the identical position of first limit bit switch;
When said first baffle plate or second baffle rotate back into said second limitation travel switch or second limit bit switch position at turntable, be installed on the turntable and said second limitation travel switch or the identical position of second limit bit switch.
Preferable, the frequency converter running frequency of the above Sampling Machine is 8 hertz.
Saidly can find out that from top this Sampling Machine turntable control device that the utility model provides drives the loop and goes back in the driving loop with turntable and increase limit bit switch respectively through producing at turntable; Sampling Machine is optimized more, safer, reduced the apparatus maintenance expense simultaneously; Improved the utilization rate of equipment; Make equipment hommization more, embodied the Important Thought of safety first, guaranteed equipment and sample collector's personal safety.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model embodiment;
Fig. 2 produces the loop for circuit intermediate station shown in Figure 1 and turntable goes back to loop circuit figure.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, to the utility model further explain.
This Sampling Machine turntable control device that the utility model provides drives the loop and goes back in the driving loop with turntable and increase limit bit switch respectively through producing at turntable, has guaranteed equipment and sample collector's personal safety.
With reference to figure 1, be the circuit block diagram of the turntable control device of the utility model embodiment.It comprises: turntable produces loop 1, turntable goes back to loop 1, PLC control module 3 and frequency converter 4.Wherein PLC control module 3 produces loop 1 and turntable with frequency converter 4, turntable respectively and goes back to loop 2 and link to each other.Wherein, turntable produces loop 1 and is provided with the first lead limit switch QS01 and first limit bit switch QS03, and they are connected respectively to PLC control module 3.Turntable goes back to and is provided with the second lead limit switch QS02 and second limit bit switch QS04 in the loop 2, and they also are connected respectively to PLC control module 3.
Wherein, the first limitation travel switch QS01, the second limitation travel switch QS02, first limit bit switch QS03 and second limit bit switch QS04 are installed on the turntable respectively.Particularly, first limit bit switch QS03 is arranged on after the first limitation travel switch QS01, and second limit bit switch is provided with QS04 after the second limitation travel switch QS03.
When said PLC control module 3 touches the first limitation travel switch QS01 or the second limitation travel switch QS02 or first limit bit switch QS03 or second limit bit switch QS04 at turntable, close frequency converter, stop the rotation of turntable.
In the present embodiment, also comprise first baffle plate and the second baffle of interim installation.When first baffle plate or second baffle produce said first limitation travel switch or first limit bit switch position at turntable, be installed on the turntable.First baffle plate or second baffle are met the said first limit switch QS01 or first limit bit switch QS03; The said first limit switch QS01 or first limit bit switch QS03 are broken off; Said PLC control module 3 detects the first limit switch QS01 or first limit bit switch QS03 breaks off; Then close frequency converter 4, stop the rotation of turntable.
When said first baffle plate or second baffle rotate back into the said second limitation travel switch QS02 or second limit bit switch QS04 position at turntable, be installed on the turntable.First baffle plate or second baffle are met the said second limit switch QS02 or second limit bit switch QS04; The said second limit switch QS02 or second limit bit switch QS04 are broken off; Said PLC control module 3 detects the second limit switch QS02 or second limit bit switch QS04 breaks off; Then close frequency converter 4, stop the rotation of turntable.
First limit bit switch QS03 and second limit bit switch QS04 are installed on the turntable in the present embodiment, and the sampling head of pivot arm will bump against the critical localisation of sample preparation chamber.The first limitation travel switch QS01 is in the forward position of first limit bit switch QS03, and the second limitation travel switch QS02 is in the forward position of second limit bit switch QS04.Concrete distance can be according to the actual conditions setting.
When first baffle plate or second baffle produce the said first limitation travel switch QS01 or first limit bit switch QS03 position at turntable, be installed on the turntable and said first limitation travel switch QS01 or the identical position of first limit bit switch QS03.
When said first baffle plate or second baffle rotate back into the said second limitation travel switch QS02 or second limit bit switch QS04 position at turntable, be installed on the turntable and said second limitation travel switch QS02 or the identical position of second limit bit switch QS04.
Turntable in the present embodiment produces loop and turntable, and to go back to the loop as shown in Figure 2: turntable produces loop 1 and turntable and goes back between the positive pole and negative pole that loop 2 is parallel to power supply.
Power supply in the present embodiment is the 24V direct supply.In the practical application, the turntable control device comprises also that in circuit red light drives the loop, green light drives the loop except above-mentioned several parts, and manual conversion driving loop.
As shown in Figure 2; Turntable produce drive loop 1, turntable go back to drive loop 2, that red light drives the loop is (irrelevant with the utility model inventive point; Omit among Fig. 2), that green light drives the loop is (irrelevant with the utility model inventive point; Omit among Fig. 2), and manual conversion driving loop 5 is connected in parallel on respectively between 24V dc power anode L+ and the 24V dc power cathode M.And on 24V dc power anode L+, be connected with necessary power switch TAJ and insurance FU9.
Be convenient and understand, below introduce manual conversion driving loop 5 earlier.
As shown in Figure 1; Manual conversion driving loop 5 has comprised 6 contactor coil KA20-KA25; After these six contactor coil parallel connections; One end links to each other with 24V dc power cathode M, and the other end is connected with a manual switch SW11, and the other end of manual switch SW11 is connected to 24V dc power anode L+.
Wherein the 5th contactor coil KA21, the 6th contactor coil KA22 are respectively applied for turntable and produce and drive loop 1, turntable and go back to and drive loop 2, red light and drive the manual conversion that loop, green light drive the loop; Other 4 function and the utility model inventive point are irrelevant, and be not shown among Fig. 2.During manual switch SW11 conducting is manual drives, is not to drive automatically during conducting.
Turntable produces and drives loop 1 and turntable to go back to driving loop 2 structures identical.
As shown in Figure 2, turntable produces and drives loop 1 and comprise: the first contactor coil KA2A, the first contacts of contactor KA2A-1, the first limitation travel switch QS01, first limit bit switch QS03, the 5th contactor first contact KA21-3 and produce switch SW 1L.Said the 5th contactor first contact KA21-3 is corresponding with the 5th contactor coil KA21 in the manual conversion driving loop 5.
This first contactor coil KA2A first end links to each other with 24V dc power cathode M, and the other end is connected with the said first limitation travel switch QS01, first limit bit switch QS03 and the first contacts of contactor KA2A-1 successively.The other end of the first contacts of contactor KA2A-1 links to each other with the 5th contactor first contact KA21-3, and the selecting side of the 5th contactor first contact KA21-3 connects when manual drives produces switch SW 1L, is connected to the PLC control module when driving automatically.Produce switch SW 1L and be connected to 24V dc power anode L+.
As shown in Figure 2, turntable goes back to and drives loop 2 and comprise: the second contactor coil KA2B, the second contacts of contactor KA2B-1, the second limitation travel switch QS02, second limit bit switch QS04, the 5th contactor second contact KA21-4 and go back to switch SW 1R.Said the 5th contactor second contact KA21-4 is corresponding with the 5th contactor coil KA21 in the manual conversion driving loop 5.
Turntable goes back to the annexation that drives each device in the loop 2 and turntable, and to produce driving loop 1 identical, do not giving unnecessary details here.Need to prove that the switch SW 1L that produces in the present embodiment is a linked switch with going back to switch SW 1R.
The present embodiment difference with the prior art is: produce at said turntable between the first contactor coil KA2A and its contact KA2A-1 that drives loop 1; Except the first limitation travel switch QS01 that prior art has been connected, first limit bit switch QS03 has also connected; And go back between the second contactor coil KA2B and its contact KA2B-1 that drives loop 2 at said turntable, except the second limitation travel switch QS02 that prior art has been connected, second limit bit switch QS04 has also connected.
In Sampling Machine when work,, when turntable produced and forward to the first limitation travel switch QS01 place, baffle plate of installation on the turntable, the particular location of this baffle plate were on the critical localisation in the sampling head of the pivot arm colored steel room that will bump against the sample preparation chamber.Baffle plate is met the first limitation travel switch QS01, and the first limitation travel switch QS01 breaks off.The PLC control module detects QS01 and breaks off, and the converter power supply of then controlling turntable breaks off, and turntable is just out of service like this, if the first limitation travel switch QS01 is malfunctioning or damage then turntable continuation operation.When turntable produces and forwards to first limit bit switch QS03 place; Second baffle plate is installed on the turntable; Turntable rotates to the position of second baffle plate and meets first limit bit switch QS03 of increase; The PLC control module detects first limit bit switch QS03 and breaks off, and then controls the frequency converter outage of turntable, and then turntable just stops the rotation.
Similarly, when turntable goes back to and forward to the second limitation travel switch QS02 place, a baffle plate is installed on the turntable; Baffle plate is met the second limitation travel switch QS02; Travel switch QS02 breaks off, and the converter power supply of PLC control module control turntable breaks off, and turntable is just out of service like this.If the second limitation travel switch QS02 is malfunctioning or damage, then turntable continues operation, and turntable rotates to the position of second baffle plate and meets second limit bit switch QS04 of increase, the frequency converter outage of PLC control module control turntable, and then turntable just stops the rotation.
Through to the setting up of turntable the one the second limit bit switches, improved the reliability of equipment operation, equipment is optimized more; Safer; Reduced the apparatus maintenance expense, improved the utilization rate of equipment, made equipment hommization more; Embody the Important Thought of safety first, guaranteed equipment and sample collector's personal safety.
In addition, also can make amendment, make equipment operation more slowly steadily for the frequency converter method of operation of Sampling Machine.
As generally speaking, the running frequency of frequency converter is 15 hertz, and it is that inertia is bigger than faster that turntable rotates; Impulsive contact force is stronger, can the running frequency setting of frequency converter be changed slightly, makes the running frequency of frequency converter change into 8 hertz; When the running frequency reduction of frequency converter, the speed that turntable rotates then can reduce, and the rate of change of the travelling speed that turntable rotates diminishes; Inertia reduces, and impulsive contact force weakens, and the probability that hits the house just greatly reduces.
In addition; Can also the program in the PLC control module be made an amendment slightly; Input point, output point on PLC, have been increased; On the PLC control program, set up the control subprogram of limit bit switch in view of the above,, made turntable safer, reliable when turning round automatically to control the limit bit switch that each is set up.
In addition, the number that is provided with of described limit bit switch is not limited to 2, also can increase setting as required, like 4 or 6 etc.
The those of ordinary skill in affiliated field is to be understood that: the above is merely the specific embodiment of the utility model; Be not limited to the utility model; All within the spirit and principle of the utility model; Any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. Sampling Machine turntable control device, comprising: PLC control module, frequency converter, turntable produce the loop and turntable goes back to the loop; The PLC control module produces loop and turntable with frequency converter, turntable respectively and goes back to the loop and link to each other; It is characterized in that said turntable produces in the loop to go back to turntable and is respectively arranged with first limit bit switch and second limit bit switch in the loop; Said first limit bit switch and second limit bit switch are installed on the turntable, and are connected respectively to the PLC control module; When said PLC control module rotated to said first limit bit switch or second limit bit switch position at turntable, it was out of service to control said frequency converter.
2. Sampling Machine turntable control device according to claim 1 is characterized in that, said turntable produces loop and turntable and goes back to and have first limitation travel switch and second limitation travel switch in the loop respectively; First limitation travel switch and second limitation travel switch are installed on the turntable;
Described first limit bit switch is arranged on after first limitation travel switch, and second limit bit switch is arranged on after second limitation travel switch; Said PLC control module links to each other respectively with second limitation travel switch with said first limitation travel switch; When turntable touches first limitation travel switch or second limitation travel switch or first limit bit switch or second limit bit switch; Close frequency converter, stop the rotation of turntable.
3. Sampling Machine turntable control device according to claim 2 is characterized in that, said turntable produces loop and turntable and goes back between the positive pole and negative pole that the loop is parallel to power supply;
Said turntable produces the loop and has first contactor coil and first contacts of contactor, and said first limitation travel switch is connected between said first contactor coil and first contacts of contactor with after said first limit bit switch is connected;
Said turntable goes back to the loop and has second contactor coil and second contacts of contactor, and said second limitation travel switch is connected between said second contactor coil and second contacts of contactor with after said second limit bit switch is connected.
4. Sampling Machine turntable control device according to claim 2 is characterized in that, also comprises first baffle plate and second baffle;
When said first baffle plate or second baffle produce said first limitation travel switch or first limit bit switch position at turntable, be installed on the turntable; First baffle plate or second baffle are run into said first limit switch or first limit bit switch; Said first limit switch or first limit bit switch are broken off; Said PLC control module detects first limit switch or first limit bit switch breaks off, and then closes frequency converter, stops the rotation of turntable;
When said first baffle plate or second baffle rotate back into said second limitation travel switch or second limit bit switch position at turntable, be installed on the turntable; First baffle plate or second baffle are run into said second limit switch or second limit bit switch; Said second limit switch or second limit bit switch are broken off; Said PLC control module detects second limit switch or second limit bit switch breaks off, and then closes frequency converter, stops the rotation of turntable.
5. Sampling Machine turntable control device according to claim 4 is characterized in that, said first limit bit switch and second limit bit switch are installed on the turntable, and the sampling head of pivot arm will bump against the critical localisation of sample preparation chamber.
6. Sampling Machine turntable control device according to claim 5; It is characterized in that; When said first baffle plate or second baffle produce said first limitation travel switch or first limit bit switch position at turntable, be installed on the turntable and said first limitation travel switch or the identical position of first limit bit switch;
When said first baffle plate or second baffle rotate back into said second limitation travel switch or second limit bit switch position at turntable, be installed on the turntable and said second limitation travel switch or the identical position of second limit bit switch.
7. according to any described Sampling Machine turntable control device of claim 1-3, it is characterized in that said frequency converter running frequency is 8 hertz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205377237U CN202394126U (en) | 2011-12-20 | 2011-12-20 | Controller for sampling machine rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205377237U CN202394126U (en) | 2011-12-20 | 2011-12-20 | Controller for sampling machine rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202394126U true CN202394126U (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205377237U Expired - Lifetime CN202394126U (en) | 2011-12-20 | 2011-12-20 | Controller for sampling machine rotary table |
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| CN (1) | CN202394126U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353774A (en) * | 2014-08-22 | 2016-02-24 | 北京瑞赛长城航空测控技术有限公司 | Limiting mechanism for rotary table with selective rotating angle of between plus or minus 360 degrees |
| CN106486301A (en) * | 2016-10-31 | 2017-03-08 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of energy storage control loop of follow-on hydraulic spring grease cup chopper |
-
2011
- 2011-12-20 CN CN2011205377237U patent/CN202394126U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353774A (en) * | 2014-08-22 | 2016-02-24 | 北京瑞赛长城航空测控技术有限公司 | Limiting mechanism for rotary table with selective rotating angle of between plus or minus 360 degrees |
| CN106486301A (en) * | 2016-10-31 | 2017-03-08 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of energy storage control loop of follow-on hydraulic spring grease cup chopper |
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Granted publication date: 20120822 |
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| CX01 | Expiry of patent term |