CN201428022Y - Nozzle-type yarn suction nozzle device - Google Patents

Abstract

The utility model discloses a nozzle-type yarn suction nozzle device suctioning waste yarn into a suction main tube, comprising a straight tubular yarn suction channel, a mounting seat, a yarn suctionnozzle door and a pneumatic switch, wherein one end of the straight tubular yarn suction channel extends into a yarn suction, and the other end thereof is arranged on the mounting seat; the yarn suction channel is provided with a nozzle compression air inlet; one side of the air inlet and the yarn suction channel form a nozzle structure, and the other side thereof is a yarn suction nozzle with anegative pressure nozzle structure; and the position of the yarn suction nozzle is provided with a yarn suction nozzle door controlled by the pneumatic switch. The nozzle-type yarn suction nozzle device has the advantages of simple structure, low power consumption and good yarn suction effect.

Description

Spout type silk suction nozzle device

Technical field

Inhaling the nozzle type wire suction mouth of silk device in the utility model and a kind of textile machine, specifically, is a kind of being used for the chemical-fibres filaments that spinning process is given up to be sent into the nozzle type wire suction mouth of inhaling in the silk device.

Background technology

False twist texturing machine in spinning process, need be with chemical-fibres filaments by winding mechanism around to bobbin, to finish the coiling of silk thread.After a spinning bobbin is completely rolled up, just need more change of bobbins, must cut off long filament this moment, wait until that new bobbin installs after, again with tow around to new bobbin.Owing to more than 200 winding bobbin arranged on a Texturing Machines, the multi-filament line is promptly arranged, more during change of bobbins, other ingot position also will work on, so can not shut down an ingot position.When change of bobbins more, the silk thread of being cut off is still constantly carried from roller and is come, and just needs this moment to inhale silk device by one, to store in the long filament suction wire storage cylinder of sending here, prevent waste silk accumulation winding, to guarantee bobbin arranged certain replacing time, and repiece is reeled smoothly.

In inhaling silk device, it is crucial inhaling the silk mouth, and it is an inlet of drawing waste silk, and its quality will be directly connected to the effect of whole suction silk device.At present, existing nozzle type wire suction mouth comprises inhales a silk passage, is provided with the V-type shred suction opening on the top of inhaling the silk passage, inhales a silk passage and is divided into two sections, is provided with switch base between two sections, utilizes the switching of switch base to make two sections inhale a silk passage and communicates or cut off.The applicant is in the patent of invention of having authorized " the nozzle type wire suction mouth " (patent No.: ZL200410066064.8), having introduced a kind of being used for is provided with the downward nozzle of spout in hypomere is inhaled the silk passage, compression by nozzle arrangements is quickened, the curved pipe place of inhaling the silk passage at hypomere forms annular high velocity air, inhale the stronger negative pressure of generation in the silk passage at epimere, atmospheric pressure forms big pressure differential outside the silk mouth with inhaling, air-flow enters from inhaling silk mouth inlet, in inhaling the silk passage, form one high velocity air, increased suction, improved the flowing velocity of strand in inhaling the silk passage silk.

But the shortcoming of this nozzle type wire suction mouth is: 1, owing to be divided into two sections, complex structure, manufacturing cost height.2, because hypomere is inhaled a silk passage is lonely shape pipe, when high velocity air during by lonely shape pipe bend its flow velocity will obviously reduce, power consumption is big.Reach 90 when spending when the angle of elbow in theory, its flow velocity will lose over half.3, an epimere suction silk passage adds that the length of switch base is long, thereby make negative pressuren zone length long, weakened suction, can't adapt to present more and more higher machine speed and the more and more faster waste silk speed that produces, caused sending into the waste silk of inhaling the silk passage and will pile up to produce on the machine and twine silk.Why nozzle type wire suction mouth can have very strong conveying capacity to silk, and it is mainly derived from the cohesive force of the high velocity air of spout to silk, if the rational words of design in theory, manufacturing, the air velocity at spout place can reach velocity of sound.The air velocity of negative pressuren zone is then well below the air velocity of spout, and it mainly acts on is to utilize in the passage and the atmospheric pressure differential tow suction passage that will break end.The real high-speed cruising that forms silk is at the fracture of wire head by spout at that moment.This point is very important, because the operation of a machine speed is more and more higher at present, the wire vent speed of waste silk is also more and more faster, reached more than 1000 meters/minute, the untimely suction silk passage of sending into that is to say that the waste silk that per second kind machine is sent has 16 meters long, if will pile a lot of waste silks on machine.So it is short more good more to inhale the length of silk mouth negative pressuren zone.

Summary of the invention

The purpose of this utility model provide a kind of simple and reasonable, energy consumption is low, inhale the novel jet nozzle formula silk suction nozzle device of silk better effects if.

The purpose of this utility model realizes by following technical proposals: a kind of spout type silk suction nozzle device that is used for the waste silk suction comprises that straight tube shape is inhaled a silk passage, mount pad, suction silk mouth door and jettron; The end that described straight tube shape is inhaled the silk passage extend in the suction silk house steward, and the other end is installed on the mount pad; On suction silk passage, be provided with the nozzle compressed air inlet, a side of this air intake and a suction silk passage composition spout structure, opposite side is the suction silk mouth with negative pressuren zone spout structure; A place is provided with the suction silk mouth door of being controlled by jettron at suction silk mouth.

In the utility model, removed switch base and the epimere that the spout in the background technology inhales in the silk mouth and inhaled a silk passage, shortened the length of negative pressuren zone shred suction opening (nozzle), the length of negative pressuren zone shred suction opening has been controlled within 60 millimeters scopes; In order to improve the efficient of suction silk, suction silk passage employing length links to each other with suction silk device house steward 100～200 millimeters straight tube structure.

In the utility model, when machine sends full volume signal, inhale a silk mouth door jettron and open, make and inhale a silk mouth door and open and leave jet hole, form one between the two and advance a breach; After the wire feed compressed air of 0.6 MPa enters from the compressed air inlet, during by the slit between negative pressuren zone nozzle and intaking pipe, formed one directed high velocity air (its speed is near velocity of sound) blows in the suction silk passage at the spout place, thereby in negative pressuren zone shred suction opening (nozzle) pipeline, produce a bigger vacuum (its pressure can reach-0.06～-0.05 MPa usually), form big pressure differential with the atmospheric pressure of indentation, there, the fracture of wire of indentation, there can be sucked into the spout place rapidly, form the tow (its speed is far longer than the wire vent speed of machine waste silk) of high-speed motion with high velocity air, its advantage is: simple in structure, low in energy consumption, it is effective to inhale silk.

Description of drawings

Accompanying drawing is a structural representation of the present utility model.

The specific embodiment

As shown in the figure, a kind of spout type silk suction nozzle device of inhaling on the silk house steward 7 described in the utility model that is installed in, comprise and inhale silk house steward 7, mount pad 8, a suction silk passage 1, nozzle compressed air inlet 3, a side of air intake with inhale silk passage 1 and form spout structure, opposite side is made the negative pressuren zone spout of shred suction opening structure and is inhaled a silk mouth 4; Being installed in a suction silk passage 1 of inhaling in the silk mouth seat is designed to straight tube and inhales a silk house steward 7 and link to each other; Be provided with cylinder 5 and the compressed air inlet 2 that links to each other with cylinder 5 on mount pad 8, the cylinder rod of cylinder 5 is connected with a suction silk mouth door 6, and the opening and closing of silk mouth doors are inhaled in cylinder 5 controls.

The utility model is inhaled 1 outlet of silk passage and is packed into and inhale among the silk house steward 7, and when machine sent full volume signal, compressed air was sent into and inhaled a silk mouth door switch compressed air inlet 2, opens and inhales a silk mouth door 6 by inhaling a silk mouth door switch 5; Make suction silk mouth door 6 inhale a silk mouth 4 and leave and form a breach with spout.Meanwhile compressed air is also sent into compressed air inlet 3, makes suction silk mouth in running order; Silk enters after being cut off inhales silk mouth door 6 indentation, there, and waste silk will enter at the negative pressuren zone shred suction opening that moment is inhaled silk mouth 4 by spout inhales a silk passage 1, sucks and inhales a silk house steward 7.As long as stop compressed-air actuated input after finishing suction silk process, a suction silk mouth door 6 will automatically reset and close.

Claims (2)

1, a kind of spout type silk suction nozzle device of inhaling on the silk house steward that is installed in is characterized in that this device comprises that straight tube shape is inhaled silk passage (1), mount pad (8), inhaled silk mouth door (6) and jettron (5); The end that described straight tube shape is inhaled silk passage (1) extend in the suction silk house steward, and the other end is installed on the mount pad (8); On suction silk passage (1), be provided with nozzle compressed air inlet (3), a side of this air intake (3) and a suction silk passage (a 1) composition spout structure, opposite side is the suction silk mouth (4) with negative pressuren zone spout structure; Locate to be provided with the suction silk mouth door of controlling by jettron (5) (6) at a suction silk mouth (4).

2, spout type silk suction nozzle device according to claim 1 is characterized in that jettron (5) is a cylinder, and this cylinder is installed on the mount pad (8), and its cylinder rod is connected with described suction silk mouth door (6).

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