CN2117719U - Breed silkworm coccon elector - Google Patents

Abstract

The utility model relates to a breed silkworm seeds selector which is used to separate the silkworm seeds, comprising a separating screen, a tension spring and an off-normal track. A thin line is divided into mutually parallel sieve pores by the separation distance of the screw flights; the good silkworm seeds and the bad silkworm seeds are separated by the vibration of the tension spring and the slide of the off-normal track. The utility model overcomes the defects of time waste and labor waste of the selection of the silkworm seeds by labors, which can increase the efficiency 31 to 51 times; the workers are saved about 250 each myriad sheet of seeds; the utility model is suitable for the separation and the selection of the silkworm seeds.

Description

Breed silkworm coccon elector

The utility model relates to the separation of silkworm seed.

Good ovum rate is one of leading indicator of check quality of silkworm eggs good job.Improving quality of silkworm eggs is the basic demand that silkworm and mulberry are produced.Improve quality of silkworm eggs and must reduce the bad egg percentage to greatest extent.At present, take salt solution proportion and wind selection method can remove bad egg 80-90% both at home and abroad, still have the bad egg of the total grain of silkworm egg number 2-4% can not remove with this method.And the index of domestic most laboratories control bad egg be spring the hibernating egg bad egg be no more than 1%, autumn, kind was no more than 1.5%.Does how salt solution proportion and pneumatic concentration being removed the bad egg that does not fall remove? domestic all is to adopt artificial selection, every gram silkworm egg has more than 1700, the solid colour of many bad eggs and good ovum, the difficulty of selection is very big, per ten thousand kind needs are chosen kind of worker 300-400, it is supplied only seasonally that silkworm egg is put in order in the winter time, generally must manually choose kind of an end within 10-15 days.Therefore, the labour often is difficult to meet the demands.It is external because labour's anxiety can't further be selected ovum, the way that have to take to relax bad egg content.

The purpose of this utility model is to provide a kind of Breed silkworm coccon elector, changes manually to choose the primitive method of planting, and saves the labour, saves time.

The utility model is full according to good ovum, and the more flat principle of bad egg is taked the method for sieving.Be made up of bolter, extension spring and rail three parts of offing normal, bolter is made up of screw rod, fine rule, upper ejector pin, pull bar, strut, and it is the screw thread of 0.4-1.2mm that the pitch of thread is arranged on the screw rod.Fine rule ties up on screw rod and the upper ejector pin, and pull bar is held two upper ejector pins, and strut struts two screw rods, and fine rule is tightened, and forms the sieve aperture of flat shape each other.The rail of offing normal is made up of track, hook and pulley, and pulley slides hook in orbit, and hook hooks extension spring, by pull bar, hooks bolter by extension spring.

The utility model compared with prior art has saving of labor, characteristics laborsaving, easy and simple to handle.In the bad egg that the test first separation goes out, contain good ovum 20%, be lower than the error rate of artificial selection,, good ovum rate can be reduced to below 6% as isolated bad egg is sieved twice again.Preresearch estimates, the utility model can separate 50 kilograms of silkworm eggs in 8 hours, improved work efficiency 30-50 doubly, 250 of per ten thousand kind savings of labor, 1250 yuan in meter coin, the whole nation has more than 1,000 ten thousand silkworm eggs to put in order every year, but 250000 of savings of labor save 12,500,000,000 yuan of working hour expenses.This selects egg apparatus also applicable to the anti-worker's seed selection of the silkworm egg of each silkworm egg freezer.

Accompanying drawing is the utility model structural representation.

Among the figure: the 1--track of offing normal

The 2--pulley

The 3--hook

The 4--extension spring

The 5--pull bar

The 6--upper ejector pin

The 7--screw rod

The 8--strut

The 9--fine rule

Embodiment:

Select for use the iron car of the long diameter 20mm of 600mm to become the screw rod (7) of pitch 0.5mm, be drilled with the aperture of diameter 8mm at two of screw rod (7), pass this hole by strut (8) two screw rods is strutted, strut is selected the threaded iron in two of long 220mm diameter 8mm, the long 20mm of screw thread for use.Upper ejector pin (6) is selected for use long 500mm diameter 4mm iron to curve the shape of falling ∩ and is welded on the screw rod (7), select long 220mm diameter 4mm for use, curve the pull bar (5) of spacing 200mm, tie up on screw rod (7) and the upper ejector pin (6) with nylon fine rule (9), tighten fine rule by pull bar, strut, form parallel sieve aperture, sieve aperture spacing 0.51mm.The rail of offing normal adopts the track (1) of channel-section steel, and hook (3) is placed in by pulley (2) that track (1) is gone up, hook (3) hooks extension spring, by pull bar, hooks bolter by extension spring (4).

Claims (1)

1. Breed silkworm coccon elector, it is characterized in that it is made up of bolter, extension spring and rail three parts of offing normal, bolter is made up of screw rod, fine rule, upper ejector pin, pull bar, strut, it is the 0.4-1.2mm screw thread that the pitch of thread is arranged on the screw rod, fine rule ties up on screw rod and the upper ejector pin, pull bar is held upper ejector pin, strut struts screw rod makes fine rule tighten the sieve aperture of the flat shape of mutual formation, the rail of offing normal is made up of track, hook and pulley, pulley slides hook in orbit, hook hooks extension spring, passes through pull bar by extension spring, hooks bolter.

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