Summary of the invention
The objective of the invention is to be to provide a kind of dynamic sand-paving machine, can solve prior art in can not handle the problems such as sand that have viscosity.
Technical scheme of the present invention: dynamic sand-paving machine; It is characterized in that; This sand-paving machine comprises sandbox, conveyer belt, cylinder, refining scraper plate; Described sandbox is located at conveyer belt initiating terminal top; Described cylinder is located at discharging opening place, sandbox bottom; Described refining scraper plate is located at conveyer belt initiating terminal top, the place ahead of sandbox bottom discharging opening.
Described cylinder is provided with cell body, to take up sand to be laid.
Also comprise vibration motor, this vibration motor is connected with the sandbox casing.
Also comprise ratchet, slide block, spring, described ratchet sleeve is located on the cylinder output shaft, and described slide block can be with the rotation of ratchet, and fixed card is located at the gear teeth top of ratchet via the flexible of spring.
Distance between described refining scraper plate and the conveyer belt is adjustable.
The pace of described conveyer belt and the product of the thickness of waiting to lay sand equal rotating speed and the radial section area of cell body and the product of cell body quantity of cylinder.
The described thickness of waiting to lay sand is adjustable.
The pace of described conveyer belt is adjustable.
The rotating speed adjustable of described cylinder.
The radial section area of described cell body and cell body adjustable number.
The beneficial effect that the present invention has: can be on the conveyer belt of uniform motion, width as required and thickness carry out quantitatively dynamically smooth sand is layered on the conveyer belt, and target is even, and no vacancy does not have and piles up.
The specific embodiment
For making architectural feature of the present invention and the effect reached there are further understanding and understanding, cooperate detailed explanation, illustrate as follows in order to preferred embodiment and accompanying drawing:
Structure of the present invention is as shown in Figure 1:
Dynamic sand-paving machine, this sand-paving machine comprises sandbox, conveyer belt, cylinder, refining scraper plate, and sandbox is located at conveyer belt initiating terminal top, and cylinder is located at discharging opening place, sandbox bottom, and the refining scraper plate is located at conveyer belt initiating terminal top, the place ahead of sandbox bottom discharging opening.Cylinder is provided with cell body, to take up sand to be laid.
Adopt cylinder to slot according to the husky thickness in shop and the conveyer belt speed of motion, endfeed on cylinder, the discharging in the lower end should equal the volume that discharging opening comes out according to the volume of thickness required sandstone in the unit interval of the speed of conveyer belt and requirement,
Computing formula is following:
Lu=hbzn
Wherein:
Require the thickness of conveyer belt sand :=l
Conveyer belt speed :=u
Drum rotation speed=n
Height=the h of groove
Width=the b of groove
Quantity=the z of groove
The volume of discharging equals the volume of roller trough, multiply by number and multiply by rotating speed again.
This programme is a cylinder proportioning device, utilizes the groove on the cylinder to make quantitative measurer, whenever turns around, and has the sand of the volume of n groove to pack into from charging aperture, comes out from discharging opening, like this as long as the control rotating speed just can be controlled flow.If the crest pulsation on conveyer belt, occurs, when influence is used, can take following two kinds of methods to deal with problems.
1, the width between change groove and the groove.Width in the middle of groove and the groove can be from zero (reality can not for zero, because groove and groove always have a dividing plate), and actual minimum up increases its width for the thickness of dividing plate.
2, add scraper plate in the crest back, the crest of pruning is inserted the lowest point with the sand of pruning.
During this technology of practical application, the sand that has viscosity sticks not discharging at discharging opening, takes following two kinds of methods.
1, improve rotating speed, make it produce centrifugal force, at discharging opening as far as sand, except deadweight adds centrifugal force.Certainly improve the rotating speed load and can become big.A can reduce diameter of cylinder.B increases the width between groove and the groove.C reduces the height of groove, can keep load constant like this.
2, on sandbox, increase vibration motor.There is deadweight gravity to add the vibrations of cylinder at discharging opening, can deals with problems.
3, as shown in Figure 2; On the output shaft of cylinder, increase a ratchet; On ratchet, increase a spring and slide block; Elastic force effect owing to spring makes slide block impact to next tooth from last tooth to lower tooth when slide block; Then slide block not only from the bottom of tooth along with the rotation of cylinder but also be raised to the crown of tooth; Carry out next one circulation, constantly cylinder is carried out impact endurance test shock.
In sum; It only is preferred embodiment of the present invention; Be not to be used for limiting the scope that the present invention implements, all equalizations of doing according to the described shape of claim scope of the present invention, structure, characteristic and spirit change and modify, and all should be included in the claim scope of the present invention.