CN201471052U - Iron powder spraying device - Google Patents

Abstract

The utility model discloses an iron powder spraying device, which comprises a spraying device body, an iron powder adjusting slide valve and a slide valve guide groove. The spraying device body comprises an iron powder passageway and a horizontally arranged nitrogen boosting passageway, the upper end of the iron powder passageway is an iron powder inlet, the lower end of the iron powder passageway is communicated with the nitrogen boosting passageway, and the two ends of the nitrogen boosting passageway are respectively of a nitrogen inlet and an iron powder spraying outlet; the iron powder adjusting slide is arranged on the iron powder passageway; and the iron powder adjusting slide valve is in threaded connection with the slide valve guide groove and can move relatively thereto, and the slide valve guide groove is in threaded connection with the spraying device body. The iron powder spraying device prevents the iron powder from being blocked, reduces the fault rate, and improves the use ratio of the iron powder.

Description

The iron powder injector

Technical field

The utility model relates to a kind of iron powder injector that iron powder realizes that cutting is fluxed that sprays when special steel grades such as cutting stainless steel.

Background technology

The iron powder injector plays crucial effects in special steel material cutting process such as stainless steel, the iron powder injector breaks down causing steel billet to cut off, and has a strong impact on production.

Fig. 1 is the schematic diagram of existing iron powder injector, as shown in the figure, existing iron powder injector mainly comprises iron powder passage 2, nitrogen boosting passage 3, nitrogen boosting passage 3 is vertically arranged, iron powder enters iron powder passage 2 after iron powder inlet 1 adds, to become certain angle of inclination nitrogen injection boosting passage 3 with level, the nitrogen inlet 4 of portion from it enters, and come out together in company with iron powder from the iron powder ejiction opening 5 of its underpart, be that nitrogen promotes the iron powder ejection at vertical direction, She Ji benefit is that iron powder ratio in the iron powder jar is easier to enter nitrogen boosting passage 3 like this, shortcoming is that passage that iron powder enters nitrogen boosting passage 3 is that the aperture of iron powder passage 2 is less, be generally 3mm, if too big, then to enter the flow of nitrogen boosting passage 3 too big for iron powder, when the nitrogen pressure of boosting is higher, iron powder solubility is not enough, and nitrogen pressure is when low, dusts discontinuous even stops up.Because it is too little that iron powder enters the aperture of nitrogen boosting passage 3, make moist and have under the situation of impurity at iron powder, this installs easier obstruction.

In addition, because nitrogen boosting passage 3 is vertically arranged, existing iron powder injector must be installed the pinched valve by solenoid control in the front of iron powder injector, utilize pinched valve under the state that do not dust, the iron powder of iron powder jar to be separated with the iron powder injector, otherwise iron powder passage 2 and nitrogen boosting passage 3 will there be a large amount of iron powders to hoard and stop up.Pinched valve is in normally off under the effect of nitrogen, only under state is dusted in cutting, close nitrogen by preposition solenoid control, clamping and release.Under hot environment, the nitrogen pipeline of pinched valve is in closed state always, and gas expands, and the nitrogen flexible pipe breaks easily, thereby causes pinched valve not clamp fully or unclamp, and injector stops up.If same magnetic valve action is not in place, also can produce top phenomenon.Do not spray for a long time in view of this device of above characteristics and be easy under the state of iron powder stop up, generally all can the iron powder in the iron powder jar all have been sprayed or diffuse during use, cause iron powder to waste.

The utility model content

For solving the above-mentioned shortcoming that exists in the prior art, the utility model provides a kind of iron powder injector, avoids stopping up.

For achieving the above object, iron powder injector of the present utility model comprises: injector body, comprise an iron powder passage and a horizontally disposed nitrogen boosting passage, the upper end of described iron powder passage is the iron powder inlet, lower end and described nitrogen boosting channel connection, the two ends of described nitrogen boosting passage are respectively nitrogen inlet and iron powder ejiction opening; The iron powder regulating slide valve is arranged on the described iron powder passage; The guiding valve guide groove, described iron powder regulating slide valve is threaded with described guiding valve guide groove, and can move relative to described guiding valve guide groove, and described guiding valve guide groove is threaded with described injector body.

Described iron powder passage tilts to described nitrogen inlet.

It is conical inlet attack that the nitrogen inlet of described nitrogen boosting passage is equipped with the inner passage.

The junction of described guiding valve guide groove and described injector body is provided with sealing ring.

By iron powder injector of the present utility model, avoided iron powder to occur stopping up, reduced fault rate, the iron powder flow can be regulated, and can effectively play fluxing action.Can realize simultaneously intermittently using, need not iron powder is diffused when recovering to use, improve the iron powder utilization rate.

Description of drawings

Fig. 1 is the schematic diagram of existing iron powder injector;

Fig. 2 is the stereogram of iron powder injector of the present utility model;

Fig. 3 is the structural representation of iron powder injector of the present utility model;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is that the A-A of Fig. 3 is to cutaway view;

Fig. 6 is the schematic diagram of the iron powder regulating slide valve among Fig. 5;

Fig. 7 is the vertical view of Fig. 3.

The specific embodiment

Referring to Fig. 2～Fig. 7, iron powder injector of the present utility model comprises: injector body 10, comprise an iron powder passage 11 and a horizontally disposed nitrogen boosting passage 12, the upper end of described iron powder passage 11 is an iron powder inlet 111, the lower end is communicated with described nitrogen boosting passage 12, and the two ends of described nitrogen boosting passage 12 are respectively nitrogen inlet 121 and iron powder ejiction opening 122; Iron powder regulating slide valve 20 is arranged on the described iron powder passage 11; Guiding valve guide groove 21, described iron powder regulating slide valve 20 is threaded with described guiding valve guide groove 21, and can move relative to described guiding valve guide groove 21, and described guiding valve guide groove 21 is threaded with described injector body 10.

Referring to Fig. 3, iron powder passage 11 and nitrogen boosting passage 12 are communicated with, iron powder enters from the iron powder inlet 111 on iron powder passage 11 tops, under the effect of gravity, enter nitrogen boosting passage 12, boosting nitrogen is by the solenoid control break-make, nitrogen is closed when not needing to spray iron powder, and iron powder just can rest in the nitrogen boosting passage 12, can not go out from 122 direct injections of iron powder ejiction opening.Need not to install clamping device and control corresponding system at the injector front end like this, avoid because the clogging that sealing nitrogen flexible pipe breaks under high temperature action and by-pass valve control remarkable action etc. brings.

The right side of nitrogen boosting passage 12 is a boosting nitrogen inlet 121 among Fig. 3, and the left side is an iron powder ejiction opening 122, enters iron powder in the nitrogen boosting passage 12 under the boosting nitrogen gas pressure effect that enters from the right side, from iron powder ejiction opening 122 ejections in left side.Described iron powder passage 11 tilts to described nitrogen inlet 121, makes that the angle of approach axis of iron powder approach axis and boosting nitrogen is an acute angle, and promptly nitrogen boosting passage 12 and iron powder passage 11 formation certain included angle prevent that boosting nitrogen from entering iron powder passage 11; It is conical inlet attack 123 that the nitrogen inlet 121 of nitrogen boosting passage 12 is provided with the inner passage, forms nozzle like this, increases the boosting nitrogen flow rate, and it is more smooth and easy that iron powder is flowed.

Referring to Fig. 5, enter the too little easy blocking problem in nitrogen boosting passage 12 apertures for solving iron powder, the utility model has increased the aperture that iron powder enters the iron powder passage 11 of nitrogen boosting passage 12, generally can be set to 6mm, the iron powder regulating slide valve 20 that can move horizontally is housed on iron powder passage 11 simultaneously, the other end and guiding valve guide groove 21 form threaded engagement, can seesaw by the described iron powder regulating slide valve 20 of rotation driving and realize adjusting described iron powder regulating slide valve 20 positions, thereby change the openings of sizes of iron powder passage 11, change the iron powder flow velocity or close.The head of described iron powder regulating slide valve 20 can be taper 10, convenient like this openings of sizes of regulating iron powder passage 11, thus regulate the iron powder flow.

Referring to Fig. 5 and Fig. 6, described iron powder regulating slide valve 20 is the bar that an agent structure is cylindricality, stops iron powder passage 11 by rotating into.For preventing that iron powder from leaking from the junction of described iron powder regulating slide valve 20, described guiding valve guide groove 21 and described injector body 10, the part of described iron powder regulating slide valve 20 and described guiding valve guide groove 21 is for being threaded, some is for being slidingly connected, and the place of being slidingly connected between described iron powder regulating slide valve 20 and described guiding valve guide groove 21 is provided with sealing ring 201.Described guiding valve guide groove 21 is provided with sealing ring 211 with the junction of described injector body 10.

The effect of end cap 22 is the convenience in order to overhaul.

Iron powder injector of the present utility model has been realized the stop of iron powder at nitrogen boosting passage 12, and after cutting and spray iron powder signal provide, under the effect of boosting nitrogen gas pressure, uniform and stable sprays from iron powder ejiction opening 122, utilize the valve mechanism characteristics to realize and replace the pinched valve and the due function of injector of prior art, avoid iron powder to occur stopping up, reduce fault rate, the iron powder flow can be regulated, and can effectively play fluxing action.Can realize simultaneously intermittently using, need not iron powder is diffused when recovering to use, improve the iron powder utilization rate.

Claims (4)

1. an iron powder injector is characterized in that, comprising:

Injector body (10), comprise an iron powder passage (11) and a horizontally disposed nitrogen boosting passage (12), the upper end of described iron powder passage (11) is an iron powder inlet (111), the lower end is communicated with described nitrogen boosting passage (12), and the two ends of described nitrogen boosting passage (12) are respectively nitrogen inlet (121) and iron powder ejiction opening (122);

Iron powder regulating slide valve (20) is arranged on the described iron powder passage (11);

Guiding valve guide groove (21), described iron powder regulating slide valve (20) is threaded with described guiding valve guide groove (21), and can move relative to described guiding valve guide groove (21), and described guiding valve guide groove (21) is threaded with described injector body (10).

2. iron powder injector as claimed in claim 1 is characterized in that, described iron powder passage (11) tilts to described nitrogen inlet (121).

3. iron powder injector as claimed in claim 1 is characterized in that, it is conical inlet attack (123) that the nitrogen inlet (121) of described nitrogen boosting passage (12) is equipped with the inner passage.

4. iron powder injector as claimed in claim 1 is characterized in that, described guiding valve guide groove (21) is provided with sealing ring (211) with the junction of described injector body (10).

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