Nozzle device of water jet loom

Abstract

The nozzle device comprises a water spraying pipe, an abutting assembly and a water supply assembly, weft yarn penetrates through the water spraying pipe, the abutting assembly comprises abutting rods, abutting springs and abutting rings, the abutting rods are distributed in the axis direction of the water spraying pipe, and the abutting springs are arranged on the abutting rods. One end of the abutting rod is rotationally connected to the water spraying pipe in the tangential direction of the water spraying pipe, the abutting ring and the water spraying pipe are coaxially arranged, the abutting ring is slidably connected into the water spraying pipe in the axis direction of the water spraying pipe, and the abutting ring is used for driving the abutting rod to rotate. The abutting spring is used for enabling the abutting rod to abut against the weft yarn, and the water supply assembly is used for supplying water into the water spraying pipe and driving the abutting ring to move in the weft yarn conveying direction. The effect of reducing the situation that weft yarn is separated from the nozzle is achieved.

Description

Technical Field

[0001] The present application relates to the field of water jet looms, and in particular to a nozzle device of a water jet loom. Background Art

[0002] The water jet loom is a shuttleless loom that uses a jet of water to pull the weft yarn through the shed. It has the effects of less energy consumption and lower noise.

[0003] The Chinese utility model patent currently published with the publication number CN211897264U discloses a nozzle for a water jet loom, including a nozzle body, a nozzle needle and a rectifier. The nozzle body includes large-diameter parts at both ends and a small-diameter part in the middle. A circle of water inlet holes is provided on the small-diameter part in the middle. The nozzle needle includes a needle seat and a ceramic needle base. An annular wing groove is provided on the outer peripheral surface of the ceramic needle base. A needle tip is provided at the front end of the ceramic needle base. A sealing ring is provided at the rear end of the ceramic needle base, which is located at the rear end of the annular wing groove. A rear guide groove is provided on the outer peripheral surface of the ceramic needle base, and the position of the rear guide groove corresponds to the groove on the annular wing groove.

[0004] During the operation, the water jet loom uses water to pull the weft yarn through the shed, and the heald frame on the water jet loom drives the heald wire, and the warp yarns are interlaced to fix the weft yarn on the cloth. Then the water jet loom stops spraying water, and the weft breaking device on the water jet loom cuts off the weft yarn. Since the weft yarn is in a taut state before being cut off, after the weft yarn is cut off, the weft yarn originally in the nozzle will rebound quickly, and even the weft yarn will fall out of the nozzle, resulting in the need to reload the weft yarn later, which greatly reduces the work efficiency. Utility Model Content

[0005] In order to reduce the occurrence of weft yarn escaping from the nozzle, the present application provides a nozzle device for a water jet loom.

[0006] The present application provides a nozzle device for a water jet loom, which adopts the following technical solution:

[0007] A nozzle device for a water jet loom includes a water jet pipe, a clamping assembly and a water supply assembly, wherein the weft yarn passes through the water jet pipe, the clamping assembly includes a clamping rod, a clamping spring and a clamping ring, a plurality of clamping rods are distributed along the axial direction of the water jet pipe, one end of the clamping rod is rotatably connected to the water jet pipe along the tangential direction of the water jet pipe, the clamping ring is coaxially arranged with the water jet pipe, the clamping ring is slidably connected to the water jet pipe along the axial direction of the water jet pipe, the clamping ring is used to drive the clamping rod to rotate, the clamping spring is used for the clamping rod to clamp the weft yarn, and the water supply assembly is used to supply water to the water jet pipe and drive the clamping ring to move along the weft yarn conveying direction.

[0008] By adopting the above technical scheme, during the working process, the water supply component supplies water to the water spray pipe. When the water drives the weft yarn to weave the cloth, the water will drive the tightening ring to slide in the water spray pipe, and the tightening ring resists the elastic force of the tightening spring to drive the tightening rod to rotate. The tightening rod is away from the weft yarn, and the weft yarn can move smoothly in the water spray pipe. When the weft yarn is in place, the warp yarn is interlaced, the weft yarn is fixed on the cloth, and the weft yarn is in a taut state. At this time, the water supply component stops supplying water to the water spray pipe, the tightening spring is restored, the tightening ring is reset, and the tightening rod is abutted against the weft yarn. Then, the weft yarn is cut off by the weft breaking device on the water jet loom. The tightening component reduces the occurrence of the weft yarn detaching from the water spray pipe, thereby improving the reliability of the nozzle device to output the weft yarn.

[0009] Optionally, the clamping rod includes a rotating rod and an elastic strip, one end of the rotating rod is rotatably connected to the inner wall of the water spray pipe along the tangential direction of the water spray pipe, one end of the elastic strip is arranged on the rotating rod, the elastic strip is arc-shaped, and the outer side wall of the elastic strip is used to abut against the weft yarn, and a sliding column is arranged on the clamping ring, and the sliding column is slidably connected to the rotating rod along the length direction of the rotating rod.

[0010] By adopting the above technical scheme, the abutment ring moves in the direction of the water flow under the impact of the water flow, the sliding column on the abutment ring slides on the rotating rod, the rotating rod rotates, and the elastic strip originally abuts against the weft yarn moves in the direction away from the weft yarn. The weft yarn can weave the cloth with the water flow. When the weft yarn is fixed to the cloth by the warp yarn, the water flow stops flowing in the water pipe, and the abutment ring is reset under the action of the clamping spring, and the abutment ring drives the rotating rod to rotate, and the rotating rod drives the elastic strip to abut against the cloth. The elastic strip can be suitable for weft yarns of different diameters, thereby improving the application range of the clamping component.

[0011] Optionally, the water supply assembly includes a water supply pump and a water supply pipe. An annular groove is provided on the inner wall of the water spray pipe. The annular groove is trumpet-shaped. The diameter of the annular groove gradually decreases along the moving direction of the weft yarn. One end of the water supply pipe is arranged on the outer wall of the water spray pipe. The water supply pipe is connected to the annular groove. The water supply pump is used to supply water to the water supply pipe.

[0012] By adopting the above technical solution, the water supply pump enters the annular groove through the water supply pipe. The diameter of the annular groove gradually decreases along the moving direction of the weft yarn, which makes it easier for the water flow to drive the weft yarn to move. The water supply component has a reasonable structure, and the annular groove facilitates guiding the movement direction of the water flow in the water supply pipe, thereby increasing the moving speed of the weft yarn.

[0013] Optionally, the clamping assembly further includes a sealing ring, which is coaxially arranged with the clamping ring, and is arranged on a side of the clamping ring facing the annular groove, and is used for sealing the annular groove.

[0014] By adopting the above technical solution, when the water supply pipe stops supplying water, the clamping ring will drive the sealing ring to seal the ring groove; and when the water supply pipe is supplying water, the sealing ring that originally blocks the ring groove is impacted by the water flow, and the sealing ring can drive the abutment ring to move. The movement of the abutment ring resists the elastic force of the abutment spring to drive the clamping rod to separate from the weft yarn. The sealing ring improves the movement sensitivity of the clamping ring, making it easier for the abutment ring to drive the abutment rod to rotate.

[0015] Optionally, the water spray pipe is also provided with a water-blocking component for reducing the reverse flow of water, the water-blocking component includes a blocking tube and a mounting part, the blocking tube is coaxially arranged with the water spray pipe, the inner diameter of the blocking tube gradually decreases along the moving direction of the weft yarn, the weft yarn passes through the blocking tube, the blocking tube is located on the side of the annular groove away from the tightening ring, and the mounting part is used to set the blocking tube on the water spray pipe.

[0016] By adopting the above technical solution, the blocking tube reduces the flow of water in the water spray pipe in the direction opposite to the weft yarn. The blocking tube can be replaced by the mounting part, so that the blocking tube can be applicable to weft yarns of different sizes, thereby improving the application range of the water spray pipe.

[0017] Optionally, the mounting member includes a mounting ring and a plurality of mounting bolts, the mounting ring being coaxially arranged with the blocking tube, the mounting ring being arranged on the blocking tube, the mounting ring abutting against one end of the water spray pipe, the plurality of mounting bolts being distributed along the axis of the mounting ring, the tail of the mounting bolt passing through the mounting ring and being threadedly connected to the water spray pipe.

[0018] By adopting the above technical solution, when installing the blocking tube, the staff can first insert the blocking tube into the water spray pipe, and make the mounting ring abut against the water spray pipe, and then install the mounting ring to the water spray pipe by means of mounting bolts. The mounting structure is simple, which makes it easy for the staff to install the blocking tube.

[0019] Optionally, a voltage transformer component for changing the water flow rate is provided on the water spray pipe, and the voltage transformer component includes a nozzle, which is threadedly connected to the side of the water spray pipe away from the mounting ring, and the diameter of the inner wall of the nozzle gradually decreases along the movement direction of the weft yarn.

[0020] By adopting the above technical solution, when the diameter of the weft yarn is determined, the staff can select a suitable nozzle according to the diameter of the weft yarn. The space between the inner walls of the nozzle gradually decreases along the movement direction of the weft yarn, thereby increasing the flow rate of the water flow inside the nozzle. When the weft yarn is heavier, the movement speed of the weft yarn can be increased by replacing the nozzle, thereby reducing the influence of gravity on the weft yarn during movement.

[0021] Optionally, the outer side wall of the nozzle is provided with two dial plates for facilitating the staff to rotate the nozzle.

[0022] By adopting the above technical solution, the pull plate makes it easy for the staff to remove the nozzle, thereby improving the convenience of replacing the nozzle.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The tightening component reduces the situation where the weft yarn is separated from the water spray pipe under the action of elastic force after the weft yarn is cut off;

[0025] 2. The water blocking component reduces the water flow in the water spray pipe moving in the opposite direction of the weft yarn movement;

[0026] 3. The nozzle can increase the flow rate of water to adapt to the movement of weft yarns of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the nozzle device of water jet loom.

[0028] Figure 2 yes Figure 1 The cross-sectional view of the water spray pipe is used to show the coordination between the sprinkler head and the water spray pipe.

[0029] Figure 3 yes Figure 2 The enlarged view at point A in the middle is used to show the matching relationship between the clamping rod and the clamping ring.

[0030] Figure 4 It is a schematic diagram of the state in which the pressing component presses against the weft yarn.

[0031] Figure numerals: 1. water spray pipe; 11. annular groove; 2. clamping assembly; 21. clamping rod; 211. rotating rod; 212. elastic strip; 213. sliding groove; 22. clamping spring; 23. clamping ring; 231. sliding column; 24. sealing ring; 25. connecting ring; 26. fixing ring; 3. water supply assembly; 31. water supply pump; 32. water supply pipe; 4. water blocking assembly; 41. blocking pipe; 42. mounting part; 421. mounting ring; 422. mounting bolt; 5. nozzle; 51. dial plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The present application embodiment discloses a nozzle device for a water jet loom. Figure 1 and Figure 2A nozzle device of a water jet loom comprises a water jet pipe 1, a clamping component 2, a water supply component 3, a water blocking component 4 and a nozzle 5. The water jet pipe 1 is fixedly arranged on the water jet loom, the water jet pipe 1 is arranged horizontally, the length direction of the water jet pipe 1 is perpendicular to the warp movement direction of the water jet loom, the weft yarn passes through the water jet pipe 1, the water supply component 3 is used to supply water to the water jet pipe 1 and drive the weft yarn to move in the direction of the warp yarn, the clamping component 2 is used to clamp the moving weft yarn, the water blocking component 4 reduces the water flow moving in the opposite direction of the weft yarn movement, and the nozzle 5 is arranged on the water jet pipe 1, and the nozzle 5 is used to change the water outlet speed of the water jet pipe 1.

[0034] Reference Figure 1 and Figure 2 The nozzle 5 is located on the side of the water spray pipe 1 facing the warp yarn, the nozzle 5 is coaxially arranged with the water spray pipe 1, the nozzle 5 is connected to the water spray pipe 1 by a thread, the diameter of the inner wall of the nozzle 5 gradually decreases along the moving direction of the weft yarn, and two paddles 51 are arranged on the nozzle 5, the two paddles 51 are evenly distributed along the circumferential direction of the axis of the nozzle 5, the paddles 51 are parallel to the radial direction of the nozzle 5, and the paddles 51 are fixedly arranged on the outer wall of the nozzle 5.

[0035] Reference Figure 1 and Figure 2 The water supply assembly 3 includes a water supply pump 31 and a water supply pipe 32. The water supply pipe 32 is vertically arranged. The upper end face of the water supply pipe 32 is fixedly arranged on the outer wall of the water spray pipe 1. The water supply pump 31 is connected with the lower end face of the water supply pipe 32. The inner wall of the water spray pipe 1 is provided with an annular groove 11. The annular groove 11 is trumpet-shaped. The diameter of the annular groove 11 gradually decreases along the moving direction of the weft yarn. The annular groove 11 is connected with the water supply pipe 32.

[0036] Reference Figure 2 and Figure 3 The tightening assembly 2 includes four tightening rods 21, a tightening spring 22, a tightening ring 23, a blocking ring 24, a connecting ring 25 and a fixing ring 26. The fixing ring 26 is coaxially arranged with the water spray pipe 1, and the fixing ring 26 is located between the annular groove 11 and the nozzle 5. The fixing ring 26 is fixedly arranged on the inner side wall of the water spray pipe 1. The tightening ring 23 is coaxially arranged with the fixing ring 26, and the tightening ring 23 is located on the side of the fixing ring 26 away from the annular groove 11. The tightening ring 23 is slidably connected to the water spray pipe 1. On the inner wall of the pipe 1, the blocking ring 24 is coaxially arranged with the fixing ring 26, the blocking ring 24 is located between the fixing ring 26 and the annular groove 11, the blocking ring 24 is slidably connected to the inner wall of the water spray pipe 1, the blocking ring 24 is used for the blocking ring 24 groove 11, the connecting ring 25 is coaxially arranged with the fixing ring 26, the connecting ring 25 is slidably connected to the fixing ring 26, one end of the connecting ring 25 is fixedly arranged on the tightening ring 23, and the other end of the connecting ring 25 is fixedly arranged on the blocking ring 24.

[0037] Reference Figure 2 and Figure 3The tightening spring 22 is sleeved on the connecting ring 25, and the tightening spring 22 is located between the fixing ring 26 and the blocking ring 24. One end of the tightening spring 22 is fixedly arranged on the end surface of the fixing ring 26, and the other end of the tightening spring 22 is fixedly arranged on the end surface of the blocking ring 24. The four tightening rods 21 are distributed circumferentially along the axis of the water spray pipe 1. The abutting rods include a rotating rod 211 and an elastic strip 212. The rotating rod 211 is located on the side of the tightening ring 23 away from the connecting ring 25. The length direction of the rotating rod 211 is parallel to the radial direction of the water spray pipe 1. One end of the rotating rod 211 is rotatably connected to the inner wall of the water spray pipe 1 along the tangential direction of the water spray pipe 1, one end of the elastic strip 212 is fixedly arranged on the connecting rod, the elastic strip 212 is arc-shaped, and the elastic strip 212 is away from the weft yarn. The rotating rod 211 is provided with a sliding groove 213, and the length direction of the sliding groove 213 is parallel to the length direction of the rotating rod 211. Four sliding columns 231 are arranged on the tightening ring 23, and the four sliding columns 231 correspond to the four rotating rods 211 one by one, and the sliding columns 231 are located in the sliding groove 213.

[0038] Reference Figure 2 and Figure 4 The water-blocking assembly 4 is located at the side of the water spray pipe 1 away from the nozzle 5. The water-blocking assembly 4 includes a blocking tube 41 and a mounting member 42. The blocking tube 41 is coaxially arranged with the water spray pipe 1. The blocking tube 41 penetrates into the water spray pipe 1. The outer wall of the blocking tube 41 abuts against the inner wall of the water spray pipe 1. The blocking tube 41 is for the weft yarn to pass through. The diameter of the inner wall of the blocking tube 41 gradually decreases along the moving direction of the weft yarn. The mounting member 42 includes a mounting ring 421 and four mounting bolts 422. The mounting ring 421 is coaxially arranged with the blocking tube 41. The mounting ring 421 is fixedly arranged on one end of the blocking tube 41. The mounting ring 421 abuts against the side of the water spray pipe 1 away from the nozzle 5. The four mounting bolts 422 are evenly distributed circumferentially along the axis of the mounting ring 421. The mounting bolt 422 is coaxially arranged with the mounting ring 421. The tail of the mounting bolt 422 passes through the mounting ring 421 and is threadedly connected to the water spray pipe 1.

[0039] The implementation principle of the nozzle device of a water jet loom in the embodiment of the present application is as follows: the staff first passes the weft yarn through the blocking tube 41, the water spray pipe 1 and the nozzle 5 in sequence. At this time, the weft yarn is pressed and clamped by the four elastic strips 212 to complete the installation of the weft yarn; during the working process, the water supply pump 31 supplies water to the water supply pipe 32, and the water flows through the annular groove 11. The water flow pushes the blocking ring 24 open, and the water flows into the water spray pipe 1. When the blocking ring 24 is pushed open by the water flow, the pressing spring 22 is compressed by force, and the blocking ring 24 drives the pressing ring 23 to move through the connecting ring 25. The pressing ring 23 drives the rotating rod 211 to rotate, and the elastic strip 212 originally clamping the weft yarn moves in a direction away from the weft yarn. The weft yarn moves toward the direction of the nozzle 5 driven by the water flow. The nozzle 5 increases the water flow distance and the speed of the water flow, driving the weft yarn to move in the direction of the warp yarn to weave the cloth.

[0040] When the weft yarn is finished weaving, the warp yarn is staggered and changed to fix the weft yarn on the cloth, the water supply component 3 stops supplying water, and the sealing ring 24 blocks the annular groove 11 under the action of the clamping spring 22. The sealing ring 24 drives the clamping ring 23 to move through the connecting ring 25, and the abutting ring drives the rotating rod 211 to rotate, and the rotating rod 211 drives the elastic strip 212 to abut against the weft yarn. Then the weft cutting device on the water jet loom cuts off the weft yarn. The cut weft yarn has elastic potential energy to shrink, but the weft yarn is clamped by the elastic strip 212 and cannot be separated from the water spray pipe 1. Then repeat the above operation.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A nozzle device for a water jet loom, characterized in that: The invention comprises a water spray pipe (1), a clamping assembly (2) and a water supply assembly (3), wherein the weft yarn passes through the water spray pipe (1), the clamping assembly (2) comprises a clamping rod (21), a clamping spring (22) and a clamping ring (23), a plurality of clamping rods are distributed along the axial direction of the water spray pipe (1), one end of the clamping rod (21) is rotatably connected to the water spray pipe (1) along the tangent direction of the water spray pipe (1), the clamping ring (23) is coaxially arranged with the water spray pipe (1), the clamping ring (23) is slidably connected to the water spray pipe (1) along the axial direction of the water spray pipe (1), the clamping ring (23) is used to drive the clamping rod (21) to rotate, the clamping spring (22) is used to clamp the clamping rod (21) against the weft yarn, and the water supply assembly (3) is used to supply water into the water spray pipe (1) and drive the clamping ring (23) to move along the weft yarn conveying direction.

2. The nozzle device of a water jet loom according to claim 1, characterized in that: The abutting rod (21) comprises a rotating rod (211) and an elastic strip (212); one end of the rotating rod (211) is connected to the inner wall of the water spray pipe (1) by rotation along the tangent direction of the water spray pipe (1); one end of the elastic strip (212) is arranged on the rotating rod (211); the elastic strip (212) is arc-shaped; the outer wall of the elastic strip (212) is used to abut against the weft yarn; and a sliding column (231) is arranged on the abutting ring (23); the sliding column (231) is connected to the rotating rod (211) by sliding along the length direction of the rotating rod (211).

3. A nozzle device for a water jet loom according to claim 2, characterized in that: The water supply assembly (3) comprises a water supply pump (31) and a water supply pipe (32); an annular groove (11) is provided on the inner wall of the water spray pipe (1); the annular groove (11) is trumpet-shaped; the diameter of the annular groove (11) gradually decreases along the moving direction of the weft yarn; one end of the water supply pipe (32) is arranged on the outer wall of the water spray pipe (1); the water supply pipe (32) is connected to the annular groove (11); and the water supply pump (31) is used to supply water to the water supply pipe (32).

4. The nozzle device of a water jet loom according to claim 3, characterized in that: The abutting assembly (2) further comprises a blocking ring (24), the blocking ring (24) being coaxially arranged with the abutting ring (23), the blocking ring (24) being arranged on a side of the abutting ring (23) facing the annular groove (11), and the blocking ring (24) being used to block the annular groove (11).

5. The nozzle device of a water jet loom according to claim 3, characterized in that: The water spray pipe (1) is also provided with a water blocking component (4) for reducing reverse flow of water, the water blocking component (4) comprising a blocking tube (41) and a mounting member (42), the blocking tube (41) being coaxially arranged with the water spray pipe (1), the inner diameter of the blocking tube (41) gradually decreasing along the moving direction of the weft yarn, the weft yarn passing through the blocking tube (41), the blocking tube (41) being located on a side of the annular groove (11) away from the abutting ring (23), and the mounting member (42) being used for arranging the blocking tube (41) on the water spray pipe (1).

6. The nozzle device of a water jet loom according to claim 5, characterized in that: The mounting member (42) comprises a mounting ring (421) and a plurality of mounting bolts (422); the mounting ring (421) is coaxially arranged with the blocking tube (41); the mounting ring (421) is arranged on the blocking tube (41); the mounting ring (421) abuts against one end of the water spray pipe (1); the plurality of mounting bolts (422) are distributed along the axis of the mounting ring (421); the tail of the mounting bolt (422) passes through the mounting ring (421) and is threadedly connected to the water spray pipe (1).

7. The nozzle device of a water jet loom according to claim 6, characterized in that: The water spray pipe (1) is provided with a nozzle (5) for changing the water flow rate; the nozzle (5) is threadedly connected to a side of the water spray pipe (1) facing away from the mounting ring (421); and the diameter of the inner wall of the nozzle (5) gradually decreases along the moving direction of the weft yarn.

8. The nozzle device of a water jet loom according to claim 7, characterized in that: The outer side wall of the spray head (5) is provided with two dial plates (51) for facilitating a worker to rotate the spray head (5).

Images