School scale weight automatic retraction device and the folding and unfolding method of belted electronic balance
Technical field
The present invention relates to the school scale technical field of belted electronic balance, relate in particular to the folding and unfolding technology of belted electronic balance school scale weight.
Background technology
As shown in Figure 1, belted electronic balance mainly is made up of band conveyor A, weighing system B, control system C three major parts.After belted electronic balance Installation and Debugging are well come into operation preceding for the first time or use a period of time in production line, must carry out verification to weighing system B, to guarantee the accuracy of metering.The method step of school scale is: under belted electronic balance conveyor A no-load running state, one group of (about 10) standard test weight E is put into from the feeding end of electronic scales conveyor A in proper order by certain time interval, counterweight E at conveyor A zone face upper edge throughput direction D successively by the belted electronic balance section of weighing, from the output of belted electronic balance conveyor A discharge end, drop down onto in the counterweight collection container F at last.At school scale weight E during successively by the section of weighing, control system C the output weight signal of weighing system B is handled and with the processing of comparing of the actual weight of standard test weight E, realize school scale purpose.For an electronic scales, every verification once, this workflow will repeat 2 times to 4 times, can come into operation after the electronic scale weighing precision after the verification reaches requirement.
Present school scale work is put in proper order at belted electronic balance conveyor A input end, is collected and loopback work at output terminal by manually finishing school scale weight E.Carry out once school scale work, needing 2~3 people to cooperate can finish, and hand labor intensity is big, and counterweight E collects very inconvenient below conveyor A discharge end, and particularly on some production lines, electronic scales conveyor height is higher, the operating space is narrow, and it is just more difficult to finish school scale work.
Summary of the invention
The present invention is directed to the difficult point that artificially collects, places counterweight in the scale process of present belted electronic balance school, automatic retraction device and the automatic deploying and retracting method of a kind of belted electronic balance school scale weight is provided, replace traditional counterweight work of manually putting, collect.
Technical scheme of the present invention is as follows:
The school scale weight automatic retraction device of belted electronic balance, comprise and be arranged on belted electronic balance conveyor top and the counterweight conveyor parallel with the belted electronic balance conveyor, one group of irony school scale weight that can be positioned on belted electronic balance conveyor and the counterweight conveyor, the traffic direction of counterweight conveyor is opposite with the traffic direction of belted electronic balance conveyor, the drive roll of counterweight conveyor and driven roll are magnetic roller, hold falling of school scale weight to be provided with degaussing gear.
Degaussing gear of the present invention is arranged between drive roll and the driven roll.Degaussing gear can be arranged at the driven roll inboard.
School of the present invention scale weight automatic deploying and retracting method is as follows: in the scale process of school, the belted electronic balance conveyor moves forward, the counterweight conveyor is to the direction operation opposite with the belted electronic balance conveyor, one group of irony school scale weight is after passing through successively on the belted electronic balance conveyor, adsorbed by magnetic drive roll and rotate thereupon at discharge end, arrive on the counterweight conveyor, realize the automatic collection to the irony school scale weight behind the scale of school; Then irony school scale weight on the counterweight conveyor by loopback, arrive the other end of counterweight conveyor when irony school scale weight after, adsorbed by magnetic driven roll and rotate thereupon, arrive the below of counterweight conveyor, after the degaussing gear demagnetization, irony school scale weight relies on to conduct oneself with dignity to drop down onto on the belted electronic balance conveyor feeding end zone face and continues to move ahead, and enters school scale circulation for the second time behind the arrival belted electronic balance conveyor discharge end.
The linear velocity of counterweight conveyor of the present invention is consistent with the linear velocity of belted electronic balance conveyor.
The present invention is at belted electronic balance conveyor discharge end, and the mode of using " magnetic " is to reclaiming automatically by the irony school scale weight after the belted electronic balance section of weighing earlier, and the counterweight conveyor carries out loopback to the irony school scale weight after reclaiming then.At belted electronic balance conveyor feeding end, still earlier irony school scale weight is delivered to the below of counterweight conveyor by the mode of " magnetic ", then irony school scale weight being carried out demagnetization handles, rely on irony school scale weight self gravitation to drop down onto on the belted electronic balance conveyor zone face, realize putting automatically of counterweight.
After adopting the present invention, collection and placement to counterweight in the scale process of the whole school of belted electronic balance have realized robotization fully, need not manual intervention, have alleviated working strength of workers, and have improved the security of operation.
Description of drawings
Fig. 1 is the electronic belt scale weight school scale synoptic diagram of prior art;
Fig. 2 is the school scale weight automatic deploying and retracting synoptic diagram of belted electronic balance of the present invention.
Embodiment
As shown in Figure 2, belted electronic balance comprises belted electronic balance conveyor 1, weighing system 2 and control system 3.The school scale weight automatic retraction device of belted electronic balance of the present invention comprises and is arranged on belted electronic balance conveyor 1 top and counterweight conveyor 4, one group irony school scale weights 7 that can be positioned over belted electronic balance conveyor and counterweight conveyor on parallel with the belted electronic balance conveyor.The traffic direction of counterweight conveyor is opposite with the traffic direction of belted electronic balance conveyor, the 4 self-powered drivings of counterweight conveyor.The linear velocity of counterweight conveyor 4 is adjustable.Drive roll 5 and the driven roll 6 of counterweight conveyor are magnetic roller, hold falling of school scale weight to be provided with degaussing gear 8.Degaussing gear 8 is generally positioned between drive roll and the driven roll.The present embodiment degaussing gear is arranged at the driven roll inboard.
The automatic deploying and retracting method of school of the present invention scale weight is as follows: in the scale process of school, belted electronic balance conveyor 1 moves forward, and counterweight conveyor 4 is to the direction operation opposite with the belted electronic balance conveyor.The linear velocity of adjusting counterweight conveyor 4 is consistent with the travel line speed of belted electronic balance conveyor 1.One group of irony school scale weight 7 is adsorbed by magnetic drive roll 5 and rotates thereupon at discharge end after passing through weighing system 2 successively on the belted electronic balance conveyor, arrives on the counterweight conveyor 4, realizes the automatic collection to the irony school scale weight behind the scale of school; Then irony school scale weight on the counterweight conveyor by loopback, arrive the other end of counterweight conveyor when irony school scale weight after, adsorbed by magnetic driven roll 6 and rotate thereupon, arrive the below of counterweight conveyor, after degaussing gear 8 demagnetizations, irony school scale weight relies on to conduct oneself with dignity to drop down onto on the belted electronic balance conveyor feeding end zone face and continues to move ahead, and enters school scale circulation for the second time behind the arrival belted electronic balance conveyor discharge end.