CN2146709Y - Automatic sampling device for dynamic bulk material - Google Patents

Abstract

The utility model relates to an automatic sampling device for dynamic bulk materials, which is arranged near a belt. A motor is controlled by an automatic control circuit to rotate. A sampling mechanism is driven to do top-and-down reciprocating movements above the belt through a mechanical transmission device. Samples are collected by mechanical arms, the automatic sampling device for dynamic bulk materials needs not to be monitored special people, and sampling can be carried out automatically. Representative samples can be selected accurately and reliably. The automatic sampling device for dynamic bulk materials integrates the sampling, the sample collection, the circuit control and the mechanical transmission. Samples are selected in a closed way. The sampling period and the frequency can be adjusted. The utility model has the advantages of strong applicability and convenient transport, installation and use. The utility model can be broadly used in the production enterprises of the fertilizer, the cement, the medicine, the foodstuff, etc.

Description

Automatic sampling device for dynamic bulk material

The utility model belongs to sampler, is specifically related to the continuous automatic sampling device of a kind of bulk material in dynamic delivery process.

At present, domestic most of manufacturing enterprise is to the inspection by sampling of advancing the factory's raw material or the product that dispatches from the factory of bulk material (chemical fertilizer, cement, grain etc.), how in the packing heap, to carry out taking of material analyzing sample by certain rule, it not only causes certain damage to the packing of product, labour intensity increases, and the representativeness of sample is not strong, simultaneously, is unfavorable for the quality control of On-line Product.

CN87214346U once disclosed a kind of " material belt conveying middle part sampling apparatus ", and its sample period is fixing non-adjustable, and the sampling scuppit is open sampling, still might cause and throw diffusing, material drag phenomenon, and its sampling precision and the scope of application are subjected to certain limitation.CN2110211U also discloses a kind of " the continuous self-actuated sampler of powder and granule shape material ", and its molar behavior mechanism is in the material of the shape that flows, and product granularity will produce detrimental effect to mechanical operation.And its structure can only place the discharging opening position, and owing to the general compact conformation of discharging opening, complexity, installation and maintenance are difficult for, and it is the fixing sampling of genus cycle also, is difficult to adjust at random sampling frequency and quantity of sampling quantity.

The purpose of this utility model is to provide a kind of sample period and frequency adjustable, the online bulk material automatic sampler of mechanical arm sealing sampling.

The utility model is taked the following technical scheme of sample.

Automatic sampler is made up of control circuit, motor circuit, guide rod transmission, sampling hand three parts, wherein the transmission of control circuit warp is connected in the driving power loop, drive motor 8, connection speed reduction unit 9, rotating guide-bar 7, guide rod 7 cooperate so that screw drive is secondary with sliding sleeve 6, sliding sleeve 6 is done lifter motion vertically, drives sampling subordinate by hinge element and falls to taking a sample and the rising sample presentation.

Wherein, Circuit Design has manually or automatic selector switch 2K, manually sampling switch 3K, sample frequency selector switch HK, timing micromachine 1D and delay circuit automatically.Delay circuit comprises time relay sj, and its delay time is adjustable.

The sampling hand is made up of sampling arm 2 and mechanical arm 12, and when sampling arm was in the sampling low level, mechanical arm was in deployed position by hinge joint, and sampling arm promotes when being in a sample presentation high position, and mechanical arm closes up sealing automatically by locating hinge joint 13 and spring tension and sampling arm.

The utility model is compared prior art, has tangible advantage and effect.Its sample period and frequency are online at random adjustable, and the industry scope of application is wide.Diffusing environment is not thrown in the sealing sampling and quantitatively property is good.Compact conformation can be placed with the arbitrary proper site of production line, has production practicality preferably.

Below in conjunction with accompanying drawing an embodiment of the present utility model is described in detail.

Accompanying drawing 1 is an automatic sampler mechanism principle synoptic diagram.

Accompanying drawing 2 is automatic sampler user mode figure.

Accompanying drawing 3 is an automatic sampler control circuit logic diagram.

Accompanying drawing 4 is an automatic sampler control circuit schematic diagram.

1 is sampling head among the figure, and 2 is sampling arm, and 3 is fulcrum, and 4 is Material pipeline, and 5 is slideway, and 6 is sliding sleeve, and 7 is guide rod, and 8 is drive motor, and 9 is speed reduction unit, and 10 is sample plasma bottle, and 11 is the material transmission belt, and 12 is mechanical arm, and 13 are the location anchor point.

Its work period process is such.When drive motor 8 is just being changeed electric current,, make guide rod 7 drive sliding sleeve 6 sampling arm 2 is moved downward by reducing gear.When the sampling head of sampling arm with after material transmission belt 11 contacts, under the effect of circuit for controlling motor, drive motor 8 stops just to change, material on the material transmission belt 11 enters in open sampling head and the mechanical arm, this moment, drive motor 8 obtained reverse current, guide rod 7 drives sliding sleeve 6 moves upward sampling arm 2, and mechanical arm closes up gradually.Sample along Material pipeline 4 enter sample plasma bottle 10, when not sampling, sampling arm and mechanical arm rest on belt top, mechanical arm closes, and prevents that dust from falling into and artificial factor.Fulcrum 3 and slideway 5 control sampling arm and the motions of mechanical arm on material transmission belt direction.

The principle of its control circuit is such.1XWK is a switch on the door of sample chamber among the figure, and door is when shutting, limit switch connections of often making war, and the instrument energising is left contacting often, and the sample chamber illuminating lamp is bright.

1K is an instrument working portion power switch, and after the closure, power light 1XD is bright.

RD is an instrument working portion fusible link, when instrument working portion circuit short circuit or electric current occur when excessive, instrument is played a protective role.

2K be automatically, manual selection switch, dial and go up to automatically, dial down to manually

3K is manual sampling switch, when manual sampling, its switch once, instrument is finished a sampling process.

HK is automatic sampling frequency selector switch, is rotated counterclockwise from the top down, is respectively: 1 time/time, 2 times/time, 5 times/time and 10 times/time.

1D is the timing micromachine, and its drives pointer and rotates with the speed in 1 commentariess on classics/time, make pointer successively with 10 contactings.

1J, 2J, 3J and 4J are respectively auxiliary reclay, when automatic sampling number selector switch HZ be allocated to 2 times/constantly, the 1J adhesive, 1,6 contacts are connected respectively, instrument per hour samples twice automatically, promptly 30 minutes once.When HZ be allocated to 5 times/constantly, the 2J adhesive, 1,3,5,7,9 contacts are connected respectively, instrument is per hour sampled 5 times automatically, and promptly 12 minutes are once, when HZ be allocated to 10 times/time, 3J and 4J adhesive simultaneously, 10 contacts are all connected, and instrument is per hour sampled 10 times promptly 6 minutes once automatically.

SJ is the time relay, with the normally closed interlock that its time-delay disconnects, by regulating delay time, controls the time length that 2D is just changeing.

ZJ is an auxiliary reclay, with its control 2D rotating.

2XWK, 4XWK limit-switch positions can up-down adjustment, by regulating its position, reach the purpose of regulating the sampling arm angle of inclination.

3XWK, 5XWK limit-switch positions are fixed, and the maximum magnitude that control spiral shell plate moves up and down shields to 2D and sampling arm.

5J is a 2D counter-rotating contactor, after its adhesive, and the 2D counter-rotating.

6J is the positive contactor of 2D, and after its adhesive, 2D just changes.

C is a starting capacitance.

2D is a drive motor, is sampling power.

6XWK is the limit switch on the door of pulpit, and when door was opened, normally closed contact was connected, pilot lamp display instrument duty, and when door closed, normally opened contact was connected, and at this moment has only when the 2D rotating (when sampling), just demonstrates Instrument working state.

Claims (4)

1, a kind of dynamic bulk material automatic sampler, include power drive, guide rod transmission, sampling head part, its drive motor drives sampling head and partly does cycle rotation sampling, feature of the present utility model is, automatic sampler is made up of control circuit, driving power, guide rod transmission, sampling hand, wherein the transmission of control circuit warp is connected in the driving power loop, drive motor 8 connects speed reduction unit 9, rotating guide-bar 7, guide rod 7 cooperates so that screw drive is secondary with sliding sleeve 6, and sliding sleeve 6 cooperates with the hinge joint of sampling hand.

2, bulk material automatic sampler as claimed in claim 1 is characterized in that Circuit Design has manually or automatic selector switch 2K, manually sampling switch 3K, sample frequency selector switch HK, timing micromachine 1D and delay circuit automatically.

3, bulk material automatic sampler as claimed in claim 1 or 2 is characterized in that delay circuit includes time relay sj, and its delay time is adjustable.

4, the automatic sampler of bulk material as claimed in claim 1 or 2, the hand that it is characterized in that sampling is made up of sampling arm 2 and mechanical arm 12, when sampling arm is in the sampling low level, mechanical arm is in deployed position by hinge joint, sampling arm promotes when being in a sample presentation high position, and mechanical arm closes up sealing automatically by locating hinge joint 12 and spring tension and sampling arm.

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