CN211972593U

CN211972593U - Short nozzle loom

Info

Publication number: CN211972593U
Application number: CN201922391316.9U
Authority: CN
Inventors: 鞠秋华
Original assignee: Zhuhai Zhubo Electronic Materials Co ltd
Current assignee: Zhuhai Zhubo Electronic Materials Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-11-20
Anticipated expiration: 2029-12-27

Abstract

The utility model aims at providing a stable short nozzle loom of motion when woof passes the shed. The utility model discloses a frame, setting are in let-off mechanism, the setting of frame one end are in shedding mechanism and beating-up mechanism, setting in the frame are in the wefting insertion mechanism and the setting of frame side are in the coiling mechanism of the frame other end, the wefting insertion mechanism includes high-pressure spray gun and sets up the short spray tube of high-pressure spray gun's delivery outlet, the internal diameter of short spray tube is and reduces along the air current direction of motion gradually. The utility model discloses be applied to jet loom's technical field.

Description

Short nozzle loom

Technical Field

The utility model discloses be applied to jet loom's technical field, in particular to short spray tube loom.

Background

The loom mainly comprises five parts, namely an opening part, a weft insertion part, a beating-up part, a winding part and a warp let-off part. Looms are classified according to different weft insertion modes into rapier looms, projectile looms, air jet looms, water jet looms, multiphase looms, magnetic weft insertion looms and the like, wherein air jet looms are shuttleless looms which use jet air to pull weft yarns through sheds. The working principle is that air is used as a weft insertion medium, the ejected compressed airflow generates friction traction force on weft yarn to pull the weft yarn, the weft yarn is taken through a shed, and the purpose of weft insertion is achieved through jet flow generated by air ejection. In order to ensure that the weft yarn can obtain enough acceleration, a nozzle for accelerating the weft yarn is usually arranged at the nozzle, and the length of the nozzle needs to be designed to be longer in order to ensure that the power of the weft yarn is sufficient, however, the longer the nozzle means that the weft yarn moves in the nozzle for a longer time, and because the air flow moves in the nozzle in a radial direction, the longer the weft yarn stays in the nozzle, the more easily the weft yarn is influenced by the radial movement of the air flow, and the instability in flight is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the prior art is not enough to overcome, a stable short nozzle loom of motion is provided when woof passes the shed.

The utility model adopts the technical proposal that: the utility model discloses a frame, setting are in let-off mechanism, the setting of frame one end are in shedding mechanism and beating-up mechanism, setting in the frame are in the wefting insertion mechanism and the setting of frame side are in the coiling mechanism of the frame other end, the wefting insertion mechanism includes high-pressure spray gun and sets up the short spray tube of high-pressure spray gun's delivery outlet, the internal diameter of short spray tube is and reduces along the air current direction of motion gradually.

According to the scheme, the time of the weft yarn moving in the spray pipe is shortened by reducing the length of the spray pipe, the influence of airflow on the weft yarn is reduced, meanwhile, the small-range pressurization is realized by adopting the design that the inner diameter of the short spray pipe is gradually reduced along the airflow moving direction, the moving speed of the airflow in the axial direction is further improved, and the weft yarn can obtain enough acceleration under the condition of shortening the acceleration time.

Preferably, the inner diameter of the input end of the short nozzle is 3 to 4 times of the weft yarn diameter, and the inner diameter of the output end of the short nozzle is 1.5 to 2 times of the weft yarn diameter.

According to the scheme, the weft yarns can be limited by the air flow and the weft yarns while passing through the short spray pipe through the design, so that the movement of the weft yarns is more stable.

According to a preferable scheme, the beating-up mechanism comprises a driving motor and a beating-up knife, the driving motor drives the beating-up knife to reciprocate, the high-pressure spray gun is connected with the beating-up knife through a connecting rod, the weft insertion mechanism further comprises a cutting knife, and the cutting knife is matched with the output end of the short spray pipe.

According to the scheme, the high-pressure spray gun is connected with the beating-up knife through the connecting rod, so that the high-pressure spray gun can reciprocate along with the beating-up knife, and the cutting-off knife is matched with the short spray pipe to cut off weft yarns.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in fig. 1, in this embodiment, the utility model discloses a frame, setting are in let-off mechanism 1, the setting of frame one end are in shedding mechanism 2 and beating-up mechanism 3 in the frame, setting are in the weft insertion mechanism 4 and the setting of frame side are in the winding mechanism 5 of the frame other end, weft insertion mechanism 4 includes high-pressure spray gun 41 and sets up the short spray tube 42 of the delivery outlet of high-pressure spray gun 41, the internal diameter of short spray tube 42 reduces along the air current direction of motion gradually. The inner diameter of the input end of the short nozzle 42 is 3 to 4 times the diameter of the weft yarn, and the inner diameter of the output end of the short nozzle 42 is 1.5 to 2 times the diameter of the weft yarn.

In this embodiment, the shedding mechanism 2 includes two shedding frames for staggering several warps in an up-and-down distributed manner, one shedding frame is used for limiting the odd-numbered warps, and the other shedding frame is used for limiting the even-numbered warps.

In this embodiment, the beating-up mechanism 3 includes a driving motor 31 and a beating-up knife 32, the driving motor 31 drives the beating-up knife 32 to reciprocate, the high-pressure spray gun 41 is connected with the beating-up knife 32 through a connecting rod 6, the weft insertion mechanism 4 further includes a cutting knife 43, and the cutting knife 43 is matched with the output end of the short spray pipe 42.

The utility model discloses a theory of operation:

a plurality of warp yarns 7 are staggered from the let-off mechanism, pass through the shedding mechanism 3, pass through the reed of the beating-up knife 32 and then are connected to the winding mechanism 5. The high-pressure spray gun 41 drives the weft yarn 8 to enter the short spray pipe 42, the air flow drives the weft yarn 8 to be ejected, the weft yarn penetrates through a shed formed by a plurality of warp yarns 7, the driving motor 31 drives the beating-up knife 32 to push the weft yarn 8 to a weaving port, and at the moment, the short spray pipe 42 is matched with the cutting knife 43 to cut off the weft yarn 8.

Claims

1. A short nozzle loom comprises a frame, a let-off mechanism (1) arranged at one end of the frame, an opening mechanism (2) and a beating-up mechanism (3) arranged on the frame, a weft insertion mechanism (4) arranged on the side surface of the frame and a winding mechanism (5) arranged at the other end of the frame, and is characterized in that: the weft insertion mechanism (4) comprises a high-pressure spray gun (41) and a short spray pipe (42) arranged at the output port of the high-pressure spray gun (41), and the inner diameter of the short spray pipe (42) is gradually reduced along the air flow movement direction.

2. The short nozzle loom of claim 1, wherein: the inner diameter of the input end of the short spray pipe (42) is 3 to 4 times of the diameter of the weft yarn, and the inner diameter of the output end of the short spray pipe (42) is 1.5 to 2 times of the diameter of the weft yarn.

3. The short nozzle loom of claim 1, wherein: the beating-up mechanism (3) comprises a driving motor (31) and a beating-up knife (32), the driving motor (31) drives the beating-up knife (32) to reciprocate, the high-pressure spray gun (41) is connected with the beating-up knife (32) through a connecting rod (6), the weft insertion mechanism (4) further comprises a cutting-off knife (43), and the cutting-off knife (43) is matched with the output end of the short spray pipe (42).