阅读说明：本技术 一种润滑散热的下针筒机构及其圆形纬编机 (Lubricated radiating lower needle section of thick bamboo mechanism and circular weft knitting machine thereof ) 是由 史志强 王伟 于 2020-05-05 设计创作，主要内容包括：本发明公开了一种润滑散热的下针筒机构及其圆形纬编机,属于纬编机领域,本发明公开的一种润滑散热的下针筒机构,包括用于放置织针的下针筒,所述下针筒一侧设置有与织针配合的三角机构以及用于固定三角机构的固定座；所述固定座上设置有油气雾化喷头以及油气混合接头,所述油气雾化喷头的出雾端朝向放置有织针的所述下针筒,所述油气混合接头与所述油气雾化喷头的进气端相连,以将高压的空气和润滑油的混合物输送至所述油气雾化喷头。将油与空气混合雾化,使得喷油量可以控制到合适的量,同时流动的空气与雾化润滑油可以很好的带走织针的热量,使得织针在高速运行时可以较为顺畅,且可以很好的带走热量,使得织针不易损坏。(The invention discloses a lubricating and heat-dissipating lower needle cylinder mechanism and a circular weft knitting machine thereof, belonging to the field of weft knitting machines, and the lubricating and heat-dissipating lower needle cylinder mechanism comprises a lower needle cylinder for placing a knitting needle, wherein one side of the lower needle cylinder is provided with a triangular mechanism matched with the knitting needle and a fixed seat for fixing the triangular mechanism; the needle cylinder is characterized in that an oil-gas atomizing nozzle and an oil-gas mixing joint are arranged on the fixing seat, a knitting needle is placed at the mist outlet end of the oil-gas atomizing nozzle in the direction of the lower needle cylinder, and the oil-gas mixing joint is connected with the air inlet end of the oil-gas atomizing nozzle so as to convey a mixture of high-pressure air and lubricating oil to the oil-gas atomizing nozzle. Oil and air are mixed and atomized, so that the oil injection amount can be controlled to be proper, meanwhile, the heat of the knitting needle can be well taken away by the flowing air and atomized lubricating oil, the knitting needle can run at high speed smoothly, the heat can be well taken away, and the knitting needle is not easy to damage.)

1. A lower needle cylinder mechanism (4) with lubricating and heat dissipating functions comprises a lower needle cylinder (41) used for placing a knitting needle, wherein one side of the lower needle cylinder (41) is provided with a triangular mechanism matched with the knitting needle and a fixed seat (42) used for fixing the triangular mechanism; the method is characterized in that:

an oil-gas atomizing spray head (43) and an oil-gas mixing joint (44) are arranged on the fixing seat (42), the mist outlet end of the oil-gas atomizing spray head (43) faces the lower needle cylinder (41) with the knitting needle, and the oil-gas mixing joint (44) is connected with the air inlet end of the oil-gas atomizing spray head (43) so as to convey a mixture of high-pressure air and lubricating oil to the oil-gas atomizing spray head (43).

2. Lubricating heat-dissipating lower syringe mechanism (4) according to claim 1, characterized in that:

an air suction opening (422) is further formed in the fixed seat (42), the air suction opening (422) is located below the oil gas atomizing spray head (43), and negative pressure is formed above the oil gas atomizing spray head (43) so that oil mist cannot be diffused towards the latch part of the knitting needle.

3. Lubricating heat-dissipating lower syringe mechanism (4) according to claim 1 or 2, characterized in that:

a step air inlet hole (421) is formed in the fixing seat (42), the oil-gas atomizing spray head (43) is in threaded connection with one end, close to the lower needle cylinder (41), of the step air inlet hole (421), and the oil-gas mixing joint (44) is in threaded connection with the other end of the step air inlet hole (421).

4. Lubricating heat-dissipating lower syringe mechanism (4) according to claim 1 or 2, characterized in that:

the oil-gas mixing joint (44) comprises a main gas pipe (443), an oil inlet pipe (441) is arranged on the side wall of the main gas pipe (443), and an electromagnetic control valve (442) is arranged on the oil inlet pipe (441).

5. Lubricating heat-dissipating lower syringe mechanism (4) according to claim 2, characterized in that:

one side of the air suction opening (422) close to the lower needle cylinder (41) is provided with a tapered hole (423), and the tapered hole (423) is smaller towards the opening of the lower needle cylinder (41).

6. Lubricating heat-dissipating lower syringe mechanism (4) according to claim 5, characterized in that:

be provided with deoiling filter screen (45) in suction opening (422), suction opening (422) below is provided with oil storage tank (46), deoiling filter screen (45) are located the top of oil storage tank (46).

7. Lubricating heat-dissipating lower syringe mechanism (4) according to claim 1, characterized in that:

an oil storage tray (47) is arranged below the fixed seat (42), the oil storage tray (47) is located below the position of the lower needle cylinder (41) where the knitting needle is installed, one end of the oil storage tray (47) extends to the lower section of the lower needle cylinder (41), one end of the oil storage tray (47) is provided with a rubber pad, and the rubber pad abuts against the lower section of the lower needle cylinder (41).

8. A circular weft knitting machine is characterized in that,

the method comprises the following steps: the lubricated heat dissipating lower syringe mechanism (4) of any one of claims 1 to 7 further comprising an upper syringe mechanism (2), a drive mechanism, a frame (1), the drive mechanism driving the lower syringe mechanism (4) and the upper syringe mechanism (2) in synchronism.

9. The circular weft knitting machine according to claim 8, characterized in that:

still include yarn storage ware (3), yarn storage ware (3) are located the top of frame (1).

Technical Field

The invention relates to the field of weft knitting machines, in particular to a lubricating and heat-dissipating lower needle cylinder mechanism and a circular weft knitting machine thereof.

Background

The circular weft knitting machine mainly comprises a yarn feeding mechanism, a knitting mechanism, a drawing and winding mechanism and a transmission mechanism, wherein the yarn feeding mechanism is used for unwinding yarns from a bobbin and conveying the yarns to a knitting area, the knitting mechanism is used for knitting the yarns into a cylindrical fabric through the work of a knitting machine part, a knitting mechanism unit capable of independently forming the fed yarns into coils is called a knitting system, and the circular weft knitting machine is generally provided with a plurality of knitting systems.

The numerical control circular weft knitting machine disclosed by Chinese patent document publication No. CN205676610U comprises a frame, a transmission mechanism, a knitting mechanism, a cloth rolling mechanism, a creel and a P L C control system, wherein the knitting mechanism is arranged in the center of the frame, the cloth rolling mechanism is arranged on the lower portion of the frame, and the creel is arranged on the upper portion of the frame.

The knitting needle can generate certain heat during high-speed operation, and meanwhile, enough smoothness needs to be guaranteed during high-speed operation, so that efficient and stable operation of equipment can be guaranteed, and the phenomenon of needle breakage and needle clamping is not easy to occur.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a lubricating and heat-dissipating lower needle cylinder mechanism which can conveniently and uniformly lubricate a knitting needle, so that the knitting needle can smoothly run at a high speed, and heat generated by the knitting needle in a high-speed running state can be taken away.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a lubricating and radiating lower needle cylinder mechanism which comprises a lower needle cylinder for placing a knitting needle, wherein one side of the lower needle cylinder is provided with a triangular mechanism matched with the knitting needle and a fixed seat for fixing the triangular mechanism; the needle cylinder is characterized in that an oil-gas atomizing nozzle and an oil-gas mixing joint are arranged on the fixing seat, a knitting needle is placed at the mist outlet end of the oil-gas atomizing nozzle in the direction of the lower needle cylinder, and the oil-gas mixing joint is connected with the air inlet end of the oil-gas atomizing nozzle so as to convey a mixture of high-pressure air and lubricating oil to the oil-gas atomizing nozzle.

The invention has the preferable technical scheme that the fixed seat is also provided with an air suction opening which is positioned below the oil gas atomizing spray head, and negative pressure is formed above the oil gas atomizing spray head so that oil mist cannot be diffused to the latch part of the knitting needle.

The invention has the preferable technical scheme that a step air inlet hole is formed in the fixed seat, the oil-gas atomizing spray head is in threaded connection with one end, close to the lower needle cylinder, of the step air inlet hole, and the oil-gas mixing joint is in threaded connection with the other end of the step air inlet hole.

The invention has the preferable technical scheme that the oil-gas mixing joint comprises a main gas pipe, an oil inlet pipe is arranged on the side wall of the main gas pipe, and an electromagnetic control valve is arranged on the oil inlet pipe.

The invention has the preferable technical scheme that one side of the air suction opening, which is close to the lower needle cylinder, is provided with a tapered hole, and the tapered hole is closer to the opening of the lower needle cylinder.

The oil-removing filter screen is arranged in the air suction opening, an oil storage tank is arranged below the air suction opening, and the oil-removing filter screen is positioned above the oil storage tank.

The invention has the preferable technical scheme that an oil storage tray is arranged below the fixed seat, the oil storage tray is positioned below the position of the lower needle cylinder where the knitting needle is installed, one end of the oil storage tray extends to the lower section of the lower needle cylinder, a rubber pad is arranged at the end of the oil storage tray, and the rubber pad is abutted against the lower section of the lower needle cylinder.

A circular weft knitting machine comprises a lower needle cylinder mechanism, an upper needle cylinder mechanism, a driving mechanism and a machine frame, wherein the lower needle cylinder mechanism, the upper needle cylinder mechanism, the driving mechanism and the machine frame are lubricated and radiated, and the driving mechanism synchronously drives the lower needle cylinder mechanism and the upper needle cylinder mechanism.

The invention preferably adopts the technical scheme that the yarn storage device is positioned at the top of the machine frame.

The invention has the beneficial effects that:

the invention provides a lubricating and radiating lower needle cylinder mechanism which comprises a lower needle cylinder for placing a knitting needle, wherein one side of the lower needle cylinder is provided with a triangular mechanism matched with the knitting needle and a fixed seat for fixing the triangular mechanism; the needle cylinder is characterized in that an oil-gas atomizing nozzle and an oil-gas mixing joint are arranged on the fixing seat, a knitting needle is placed at the mist outlet end of the oil-gas atomizing nozzle in the direction of the lower needle cylinder, and the oil-gas mixing joint is connected with the air inlet end of the oil-gas atomizing nozzle so as to convey a mixture of high-pressure air and lubricating oil to the oil-gas atomizing nozzle. Oil and air are mixed and atomized, so that the oil injection amount can be controlled to be proper, meanwhile, the heat of the knitting needle can be well taken away by the flowing air and atomized lubricating oil, the knitting needle can run at high speed smoothly, the heat can be well taken away, and the knitting needle is not easy to damage.

Drawings

FIG. 1 is a schematic view of a circular weft knitting machine provided in an embodiment of the present invention;

FIG. 2 is a schematic view of a lubricated heat dissipating lower syringe mechanism provided in an embodiment of the present invention;

in the figure:

1. a frame; 2. an upper needle cylinder mechanism; 3. a yarn storage device; 4. a needle cylinder setting mechanism; 41. a lower needle cylinder; 42. a fixed seat; 43. an oil gas atomization spray head; 44. an oil-gas mixing joint; 45. an oil removal filter screen; 46. an oil storage tank; 47. an oil storage tray; 421. a stepped air intake; 422. an air suction opening; 423. a tapered hole; 441. an oil inlet pipe; 442. an electromagnetic control valve; 443. a main air pipe.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 and 2, the lubricating and heat dissipating lower needle cylinder mechanism 4 provided in this embodiment includes a lower needle cylinder 41 for placing a knitting needle, and a cam mechanism engaged with the knitting needle and a fixing seat 42 for fixing the cam mechanism are provided on one side of the lower needle cylinder 41; an oil-gas atomizing nozzle 43 and an oil-gas mixing joint 44 are arranged on the fixed seat 42, the mist outlet end of the oil-gas atomizing nozzle 43 faces the lower needle cylinder 41 with the knitting needle placed, and the oil-gas mixing joint 44 is connected with the air inlet end of the oil-gas atomizing nozzle 43 so as to convey a mixture of high-pressure air and lubricating oil to the oil-gas atomizing nozzle 43. Mix air and lubricating oil through air-fuel mixture joint 44, carry to oil-gas atomization shower nozzle 43 through certain pressure to atomizing into the mixture of tiny lubricating oil and air, because the loss of knitting needle to lubricating oil is not big at the operation in-process, mix air and lubricating oil through air-fuel mixture joint 44, can control the volume of lubricating oil, make knitting needle department lubricating oil content can keep comparatively smooth and easy operation, can not lead to lubricating oil too much down to drop simultaneously again. Meanwhile, the mixture of the air and the lubricating oil fog beads can take away heat generated by the knitting needle, so that the knitting needle cannot be over-heated to reduce the performance.

In order to better recover the floating oil mist, the oil mist is prevented from spreading to other parts. The fixed seat 42 is further provided with an air suction opening 422, the air suction opening 422 is positioned below the oil gas atomizing spray head 43, and negative pressure is formed above the oil gas atomizing spray head 43, so that oil mist cannot be diffused towards the latch part of the knitting needle. And a suction pump is connected at the suction port 422, and the floating oil mist is sucked out of the suction port 422 and then is conveyed to the oil-gas mixing joint 44 again through the suction pump for reuse. Preferably, a suction pump of a higher power may be additionally provided when the negative pressure formed above is insufficient. Thereby preventing the oil mist from scattering on the woven fabric and recycling the redundant lubricating oil.

Preferably, a stepped air inlet hole 421 is formed in the fixed seat 42, the oil-gas atomizing nozzle 43 is connected to one end, close to the lower needle cylinder 41, of the stepped air inlet hole 421 in a threaded manner, and the oil-gas mixing joint 44 is connected to the other end of the stepped air inlet hole 421 in a threaded manner. Can make things convenient for the installation of oil gas atomizer 43, it is preferred, add seal ring when installation oil gas atomizer 43, guarantee good leakproofness.

Preferably, the air-fuel mixture joint 44 includes a main air pipe 443, an oil inlet pipe 441 is disposed on a side wall of the main air pipe 443, and an electromagnetic control valve 442 is disposed on the oil inlet pipe 441. The main air pipe 443 has a large space inside, the oil inlet pipe 441 is connected to the side wall, the oil inlet amount can be conveniently controlled through the electromagnetic control valve 442, and the lubricating oil is conveyed to the oil-gas atomizing nozzle 43 through the high-pressure air of the main air pipe 443, so that the lubricating oil is atomized. The ratio of the lubricating oil to the air can be conveniently controlled by the electromagnetic control valve 442, so that a proper degree of lubrication is achieved, and the amount of the lubricating oil can be maintained to run smoothly at a high speed, but does not drip excessively.

Preferably, a tapered hole 423 is provided at a side of the air suction opening 422 close to the lower cylinder 41, and the tapered hole 423 is opened smaller toward the lower cylinder 41. Thereby reducing the contact of the oil mist with the side wall of the suction opening 422 when the oil mist enters the suction opening 422, and reducing the liquefaction of the oil mist at the side wall. Meanwhile, due to the design of the tapered holes 423, oil mist can flow into the air suction opening 422 along the side walls of the tapered holes 423 after the side walls are liquefied, and the oil mist is prevented from falling outside. Further, be provided with deoiling filter screen 45 in the suction opening 422, suction opening 422 below is provided with oil storage tank 46, deoiling filter screen 45 is located oil storage tank 46's top. The oil mist recovered from the suction port 422 can be filtered out through the oil removal filter screen 45, so that the oil mist content in the recovered air is reduced, and when the recovered air is conveyed to the oil-gas mixing joint 44 again for use, the ratio of the lubricating oil to the air cannot fluctuate greatly, so that the ratio can be controlled conveniently. The oil mist is liquefied and dropped down after being removed by the oil removal screen 45, and then falls into the oil storage tank 46 for recycling.

Preferably, an oil storage tray 47 is arranged below the fixing seat 42, the oil storage tray 47 is located below the position where the knitting needle is installed on the lower needle cylinder 41, one end of the oil storage tray 47 extends to the lower cross section of the lower needle cylinder 41, a rubber pad is arranged at the end of the oil storage tray 47, and the rubber pad abuts against the lower cross section of the lower needle cylinder 41. Part of the lubricating oil on the knitting needles is liquefied and drops downwards, and the part of the lubricating oil can be received by the oil storage tray 47.

A circular weft knitting machine comprises a lower needle cylinder mechanism 4, an upper needle cylinder mechanism 2, a driving mechanism and a frame 1, wherein the lower needle cylinder mechanism 4 and the upper needle cylinder mechanism 2 are lubricated and radiated by the driving mechanism. Preferably, the yarn storage device 3 is further included, and the yarn storage device 3 is positioned at the top of the machine frame 1. By adopting the lower needle cylinder mechanism 4 of the invention, the circular weft knitting machine can run smoothly, and the upper needle cylinder mechanism 2 can also be provided with the same lubricating mechanism; meanwhile, the lower needle cylinder mechanism 4 and the upper needle cylinder mechanism 2 are driven synchronously, so that the knitting is accurate and efficient.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.