Spray head for water-jet loom

Abstract

The invention discloses a spray head for a water-jet loom, and belongs to the technical field of textile equipment.The spray head for the water-jet loom comprises a base and a spray head assembly, the base is fixed to the side face of the water-jet loom, the spray head assembly is arranged on the base, and the spray head assembly is composed of a left spray head part and a right spray head part; the bottom of the left spray head component is hinged to the bottom of the right spray head component, an adjusting mechanism is slidably connected to the front side of the base, a driving mechanism is slidably connected to the side face of the base, and a bearing mechanism is slidably connected to the rear side of the base. When weft yarn is replaced, the spray head can be unfolded, an operator can conveniently penetrate a thread end through the spray head, the weft yarn replacement time is effectively shortened, the working pressure of the operator is relieved, and the working efficiency of the operator is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of textile equipment, and in particular relates to a nozzle for a water jet loom. Background Art

[0002] The water jet loom is a highly efficient weaving equipment commonly used in the modern textile industry. Its working principle is to use high-pressure water flow to drive the weft yarn into the weaving mouth to form a fabric. This loom is particularly suitable for weaving natural fiber fabrics with strong hygroscopicity such as cotton and linen, because these fibers can be better combined with the warp yarn through the action of water. The most important component of the water jet loom is the nozzle. The nozzle sends water or other liquids into the nozzle through a pump. The liquid is compressed and accelerated in the nozzle, and then sprayed out through the nozzle to form a high-speed jet stream. This jet stream has the characteristics of high speed, high pressure, and high impact force, which can effectively interweave the yarns on the fabric to form a fabric. ‌ Water jet looms are highly efficient. During operation, the weft yarn needs to be replaced in time after use. When replacing the weft yarn of a conventional water jet loom, after the new weft yarn is installed, the operator needs to pass the thread end through the nozzle before the machine can start working normally. This not only requires the worker to master the threading technology, but also the entire replacement process takes a long time. In actual production, an operator often needs to take care of dozens or even hundreds of water jet looms at the same time. The operator needs to replace the weft yarn for multiple water jet looms in time. The long time taken to replace the weft yarn greatly delays the operator's work efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a nozzle for a water jet loom. The present invention can unfold the nozzle when replacing the weft yarn. The operator only needs to pull the thread end through the nozzle to conveniently pass the thread end through the nozzle, thereby effectively reducing the time for replacing the weft yarn, reducing the work pressure of the operator, and improving the work efficiency of the operator.

[0004] The technical solution adopted to solve the above technical problems is: a nozzle for a water jet loom, comprising a base and a nozzle assembly, wherein the base is fixed to the side of the water jet loom, the nozzle assembly is arranged on the base, the nozzle assembly is composed of a left nozzle component and a right nozzle component, the bottom of the left nozzle component and the bottom of the right nozzle component are hinged, the front side of the base is slidably connected with an adjustment mechanism, the side of the base is slidably connected with a driving mechanism, and the rear side of the base is slidably connected with a supporting mechanism; The driving mechanism can drive the adjusting mechanism to slide horizontally left and right; The adjustment mechanism can drive the nozzle assembly to open or close by sliding horizontally left and right; The supporting mechanism can support the spray head assembly.

[0005] Through the above technical solution, during normal operation, the weft thread passes through the nozzle assembly, the water pump supplies water into the nozzle assembly, the high-pressure water flow drives the weft thread into the water jet loom, the water jet loom completes weaving, and when the weft thread needs to be replaced, after the weft thread is installed in place, the thread end is pulled out, and the thread end and the driving mechanism are pushed to the rear end of the nozzle assembly. The driving mechanism drives the adjusting mechanism, the adjusting mechanism unfolds the nozzle assembly, the thread end is placed in the unfolded nozzle assembly, the driving mechanism is pulled back to the front end of the nozzle assembly, and after the driving mechanism is reset, the adjusting mechanism closes the nozzle assembly, and the replacement of the weft thread is completed. The replacement of the weft thread is simple and quick, which effectively reduces the work pressure of the operator and improves the work efficiency of the operator.

[0006] Furthermore, the left nozzle component and the right nozzle component are both composed of a wire feeding half pipe, a water inlet shell, a water spraying half shell and a connecting pipe. The water inlet shell is fixedly connected in the middle of the wire feeding half pipe, the water spraying half shell is fixedly connected to the rear end of the wire feeding half pipe, the connecting pipe is fixedly connected to one side of the water inlet shell, and a hinged seat is fixedly connected to one side of the front end of the wire feeding half pipe.

[0007] Through the above technical solution, since the nozzle assembly is composed of a left nozzle component and a right nozzle component, the bottom of the left nozzle component and the bottom of the right nozzle component are hinged, the left nozzle component and the right nozzle component are both composed of a wire feeding half pipe, a water inlet shell, a water spraying half shell and a connecting pipe, the water inlet shell is fixedly connected to the middle of the wire feeding half pipe, the water spraying half shell is fixedly connected to the rear end of the wire feeding half pipe, and the connecting pipe is fixedly connected to one side of the water inlet shell, so that the left nozzle component and the right nozzle component are rotated in a direction away from each other, the nozzle assembly can be unfolded, the weft thread head can be conveniently placed in the nozzle assembly, and then the left nozzle component and the right nozzle component are reset, and the nozzle assembly can be closed to start working; The two half-tubes can be closed to form a complete wire feeding tube, and the weft wire can be ejected by water through the inside of the wire feeding tube; The water inlet shell and the outer wall of the wire delivery half pipe form a closed water storage space, and the connecting pipe can be connected to the water pump to send water into the water storage space. The connecting pipe is made of flexible and bendable material to facilitate the deployment of the nozzle assembly; The two water-spraying half shells form an annular gap with the front end of the complete wire feeding pipe. A plurality of inclined water channels are arranged on the front side of the wire feeding half pipe, so that the water storage space can be connected with the annular gap. Finally, the water supplied into the water storage space by the water pump is rectified through the annular gap. The rectified water flow sprays the weft thread, thus realizing the function of the nozzle of the water jet loom.

[0008] Furthermore, the adjustment mechanism includes a first substrate, a second substrate, a transmission rod, a first connecting rod and a second connecting rod. The first substrate and the second substrate are slidably connected to the top of the front end of the base. The first substrate is arranged on the rear side of the second substrate. The transmission rod is rotatably connected to the base. The transmission rod is arranged between the first substrate and the second substrate. The first connecting rod is hinged at the left end of the first substrate, and the second connecting rod is hinged at the right end of the second substrate.

[0009] Through the above technical solution, since the first substrate and the second substrate are slidably connected at the top of the front end of the base, the first substrate is arranged on the rear side of the second substrate, the transmission rod is rotatably connected to the base, the transmission rod is arranged between the first substrate and the second substrate, the left end of the first substrate is hinged with the first connecting rod, and the right end of the second substrate is hinged with the second connecting rod, so that the horizontal left and right sliding of the first substrate and the second substrate can drive the first connecting rod and the second connecting rod to slide left and right.

[0010] Furthermore, a second dovetail groove is provided at the top of the front end of the base, and the first substrate and the second substrate are slidably connected to the second dovetail groove.

[0011] Through the above technical solution, since the first substrate and the second substrate are slidably connected to the second dovetail groove, the first substrate and the second substrate can be restricted to slide horizontally left and right on the base.

[0012] Furthermore, the first connecting rod is arranged on the left side of the left nozzle component, the bottom of the first connecting rod is hinged to the left end of the first substrate, and the top of the first connecting rod is hinged to the hinge seat on the left nozzle component; the second connecting rod is arranged on the right side of the right nozzle component, the bottom of the second connecting rod is hinged to the right end of the second substrate, and the top of the second connecting rod is hinged to the hinge seat on the right nozzle component.

[0013] Through the above technical scheme, since the first connecting rod is arranged on the left side of the left nozzle component, the bottom of the first connecting rod is hinged to the left end of the first substrate, the top of the first connecting rod is hinged to the hinge seat on the left nozzle component, and the second connecting rod is arranged on the right side of the right nozzle component, the bottom of the second connecting rod is hinged to the right end of the second substrate, and the top of the second connecting rod is hinged to the hinge seat on the right nozzle component, when the first substrate and the second substrate slide horizontally in the direction away from each other on both sides, the first connecting rod and the second connecting rod can respectively drive the left nozzle component and the right nozzle component to rotate in the direction away from each other, that is, drive the nozzle assembly to expand, and when the first substrate and the second substrate slide horizontally toward each other, the first connecting rod and the second connecting rod can respectively drive the left nozzle component and the right nozzle component to rotate in the direction close to each other, that is, drive the nozzle assembly to close.

[0014] Furthermore, a transmission rack is provided on the front side of the first substrate, a transmission rack is provided on the rear side of the second substrate, a first transmission gear is fixedly connected to the top of the transmission rod, and the first transmission gear is meshed with the transmission rack.

[0015] According to the above technical solution, since a transmission rack is provided on the front side of the first substrate, a transmission rack is provided on the rear side of the second substrate, and a first transmission gear is fixedly connected to the top of the transmission rod, the first transmission gear is meshed with the transmission rack, so that when the transmission rod rotates, the first transmission gear can be driven to rotate, and the rotation of the first transmission gear can drive the first substrate and the second substrate to slide horizontally left and right; When the first transmission gear rotates forward, the first substrate and the second substrate slide horizontally away from each other, thus driving the nozzle assembly to expand; when the first transmission gear rotates reversely, the first substrate and the second substrate slide horizontally toward each other, thus driving the nozzle assembly to close.

[0016] Furthermore, the driving mechanism includes an adjusting tube, a driving rod and an adjusting rod, wherein the driving rod is fixedly connected to one side of the adjusting tube via a fixed cross bar, and the adjusting rod is vertically slidably connected to the adjusting tube.

[0017] Through the above technical solution, the adjusting rod is vertically slidably connected to the adjusting tube, so that the adjusting rod can be stored in the adjusting tube.

[0018] Furthermore, a first dovetail groove is provided at the bottom of the front end of the base, a side slide groove is provided at the side of the base, the drive rod is slidably connected in the first dovetail groove, the fixed cross bar passes through the side slide groove, the adjusting tube is slidably connected to the side slide groove, a drive rack is provided on one side of the drive rod, and a second transmission gear is fixedly connected to the bottom of the transmission rod, and the drive rack is meshed with the second transmission gear.

[0019] Through the above technical scheme, since a first dovetail groove is provided at the bottom of the front end of the base, and a side slide groove is provided on the side of the base, the driving rod is slidably connected in the first dovetail groove, the fixed cross bar passes through the side slide groove, the adjusting tube is slidably connected to the side slide groove, a driving rack is provided on one side of the driving rod, and a second transmission gear is fixedly connected to the bottom of the transmission rod, the driving rack is meshed with the second transmission gear, so that the driving rod is restricted to slide horizontally forward and backward at the bottom of the base, and the adjusting tube now slides horizontally forward and backward on the side slide groove, and the adjusting tube slides horizontally forward and backward on the side slide groove, which can drive the driving rod to slide horizontally forward and backward at the bottom of the base, and the driving rod slides horizontally forward and backward can drive the second transmission gear to rotate, and the rotation of the second transmission gear can drive the transmission rod to rotate, and when the driving rod slides toward the rear end of the base, the transmission rod rotates forward, and when the driving rod slides toward the front end of the base, the transmission rod reverses.

[0020] Furthermore, a top rod is fixedly connected to the top of the adjusting rod, and a wire receiving groove is provided on the top rod.

[0021] Through the above technical solution, since the top of the adjusting rod is fixedly connected to the push rod, and a wire receiving groove is provided on the push rod, pushing the push rod to slide horizontally forward and backward can drive the adjusting rod to slide horizontally forward and backward, that is, drive the adjusting tube to slide horizontally forward and backward. The setting of the wire receiving groove allows the operator to put the thread end into the wire receiving groove, driving the thread end and the push rod to slide horizontally forward and backward together.

[0022] Furthermore, a sleeve is symmetrically fixedly connected to the rear end of the base, and the supporting mechanism includes a left arc-shaped support plate and a right arc-shaped support plate, and the left arc-shaped support plate and the right arc-shaped support plate are symmetrically slidably connected to the sleeve, and the left arc-shaped support plate can support the left nozzle component, and the right arc-shaped support plate can support the right nozzle component.

[0023] Through the above technical scheme, since the rear end of the base is symmetrically fixedly connected with the sleeve, the supporting mechanism includes a left arc-shaped support plate and a right arc-shaped support plate, and the left arc-shaped support plate and the right arc-shaped support plate are symmetrically slidably connected to the sleeve. The left arc-shaped support plate can support the left nozzle component, and the right arc-shaped support plate can support the right nozzle component. A reset spring is arranged at the connection between the left arc-shaped support plate and the right arc-shaped support plate and the sleeve, so that during the expansion of the nozzle assembly, the left arc-shaped support plate and the right arc-shaped support plate can follow the rotation of the left nozzle component and the right nozzle component to make corresponding horizontal displacements, so as to adapt to the expanded state of the left nozzle component and the right nozzle component and better support the nozzle assembly; during the closing process of the nozzle assembly, the left arc-shaped support plate and the right arc-shaped support plate can follow the rotation of the left nozzle component and the right nozzle component to make corresponding horizontal displacements, so as to realize that after the nozzle assembly is closed, the left arc-shaped support plate and the right arc-shaped support plate can be reset, thereby ensuring that the horizontal position and vertical height of the nozzle assembly do not change after the closing, and the nozzle assembly can directly work without adjustment after the weft line is replaced.

[0024] The beneficial effects of the present invention are as follows: (1) When the nozzle assembly of the present invention is closed, the two wire feeding half-tubes are closed to form a complete wire feeding tube, the weft wire can pass through the inside of the wire feeding tube, the water inlet shell and the outer wall of the wire feeding half-tube form a closed water storage space, and the connecting pipe can be connected to the water pump to send water into the water storage space. The two water spraying half-shells and the front end of the complete wire feeding tube form an annular gap. The front side of the wire feeding half-tube is provided with a plurality of inclined water channels, which can make the water storage space and the annular gap connected. Finally, the water supplied by the water pump into the water storage space is rectified through the annular gap, and the rectified water flow sprays the weft wire out. The high-pressure water flow drives the weft wire into the water jet loom, and the water jet loom completes weaving. That is, the nozzle assembly can work normally when it is closed, which effectively reduces the difficulty of operation for operators; (2) In the present invention, the adjusting rod is pulled out from the adjusting tube, and the thread end is placed in the thread receiving groove, which drives the thread end and the push rod to slide horizontally toward the rear end of the base, that is, drives the nozzle assembly to unfold, and the thread end can be placed in the unfolded nozzle assembly. The operation is simple and convenient, which saves the operator the work of threading, and does not require the operator to practice and master the threading skills, thereby effectively improving the operator's work efficiency; (3) In the present invention, the push rod is pulled to slide horizontally toward the front end of the base to reset the adjustment tube, which drives the nozzle assembly to close. At this time, the replacement of the weft thread is completed and the machine can be started immediately for work. The entire weft thread replacement process takes a very short time, which effectively reduces the work pressure of the operator and improves the work efficiency of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of a nozzle for a water jet loom from a first perspective of the present invention; Figure 2It is a schematic structural diagram of a nozzle for a water jet loom of the present invention when it is deployed from a first perspective; Figure 3 It is a structural schematic diagram of a nozzle assembly of a nozzle for a water jet loom according to the present invention; Figure 4 It is a structural schematic diagram of a nozzle assembly of a nozzle for a water jet loom of the present invention when it is unfolded; Figure 5 It is a schematic diagram of the exploded structure of a left nozzle component of a nozzle for a water jet loom according to the present invention; Figure 6 It is a schematic diagram of the exploded structure of a right nozzle component of a nozzle for a water jet loom according to the present invention; Figure 7 It is a schematic structural diagram of a nozzle for a water jet loom from a second viewing angle of the present invention; Figure 8 It is a schematic structural diagram of a water jet loom nozzle of the present invention when it is deployed from a second viewing angle; Fig. 9 It is a schematic structural diagram of the cooperation of a base, an adjustment mechanism and a driving mechanism of a nozzle for a water jet loom of the present invention; Fig.10 It is a structural schematic diagram of an adjustment mechanism of a nozzle for a water jet loom according to the present invention; Fig.11 It is a schematic diagram of the exploded structure of an adjustment mechanism of a nozzle for a water jet loom according to the present invention; Fig.12 It is a schematic structural diagram of the cooperation between a base and a supporting mechanism of a nozzle for a water jet loom of the present invention; Fig.13 The present invention is a schematic structural diagram of a driving mechanism of a nozzle for a water jet loom.

[0026] : Illustrations: 1. base; 2. nozzle assembly; 3. adjustment mechanism; 4. driving mechanism; 5. supporting mechanism; 11. first dovetail groove; 12. side slide groove; 13. second dovetail groove; 14. sleeve; 21. left nozzle component; 22. right nozzle component; 23. wire feeding half pipe; 24. water inlet shell; 25. water spray half shell; 26. connecting pipe; 231. hinged seat; 31. first base plate; 32. second base plate; 33. transmission rod; 34. first connecting rod; 35. second connecting rod; 331. first transmission gear; 332. second transmission gear; 41. adjusting tube; 42. driving rod; 43. adjusting rod; 431. wire supporting groove; 51. left arc-shaped support plate; 52. right arc-shaped support plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figure 1 - Figure 4 As shown, a nozzle for a water jet loom comprises a base 1 and a nozzle assembly 2. The base 1 is fixed to the side of the water jet loom, and the nozzle assembly 2 is arranged on the base 1. The nozzle assembly 2 consists of a left nozzle component 21 and a right nozzle component 22. The bottom of the left nozzle component 21 and the bottom of the right nozzle component 22 are hinged. The front side of the base 1 is slidably connected with an adjustment mechanism 3, the side of the base 1 is slidably connected with a driving mechanism 4, and the rear side of the base 1 is slidably connected with a supporting mechanism 5; The driving mechanism 4 can drive the adjusting mechanism 3 to slide horizontally left and right; The adjustment mechanism 3 can slide horizontally left and right to drive the nozzle assembly 2 to open or close; The supporting mechanism 5 can support the spray head assembly 2 .

[0029] In this embodiment, during normal operation, the weft thread passes through the nozzle assembly 2, the water pump supplies water into the nozzle assembly 2, and the high-pressure water flow drives the weft thread into the water jet loom. The water jet loom completes weaving. When the weft thread needs to be replaced, the weft thread is installed in place, the thread end is pulled out, and the thread end and the drive mechanism 4 are pushed to the rear end of the nozzle assembly 2. The drive mechanism 4 drives the adjustment mechanism 3, the adjustment mechanism 3 unfolds the nozzle assembly 2, and the thread end is placed in the unfolded nozzle assembly 2, and the drive mechanism 4 is pulled back to the front end of the nozzle assembly 2. After the drive mechanism 4 is reset, the adjustment mechanism 3 closes the nozzle assembly 2, and the replacement of the weft thread is completed. The replacement of the weft thread is simple and quick, which effectively reduces the work pressure of the operator and improves the work efficiency of the operator.

[0030] like Figure 3 - Figure 6 As shown, the left nozzle component 21 and the right nozzle component 22 are both composed of a wire feeding half pipe 23, a water inlet shell 24, a water spraying half shell 25 and a connecting pipe 26. The water inlet shell 24 is fixedly connected to the middle of the wire feeding half pipe 23, the water spraying half shell 25 is fixedly connected to the rear end of the wire feeding half pipe 23, the connecting pipe 26 is fixedly connected to one side of the water inlet shell 24, and a hinged seat 231 is fixedly connected to one side of the front end of the wire feeding half pipe 23.

[0031] In this embodiment, the left nozzle component 21 and the right nozzle component 22 are rotated in a direction away from each other, and the nozzle assembly 2 can be unfolded, and the weft thread head can be conveniently placed in the nozzle assembly 2, and then the left nozzle component 21 and the right nozzle component 22 are reset, and the nozzle assembly 2 can be closed and start working; The two wire feeding half pipes 23 are closed to form a complete wire feeding pipe, and the weft wire can be ejected by water flow through the inside of the wire feeding pipe; The water inlet shell 24 and the outer wall of the wire feeding half pipe 23 form a closed water storage space, and the connecting pipe 26 can be connected to the water pump to send water into the water storage space. The connecting pipe 26 is made of a flexible and bendable material to facilitate the deployment of the nozzle assembly 2; The two water spraying half shells 25 form an annular gap with the front end of the complete wire feeding pipe. A plurality of inclined water channels are arranged on the front side of the wire feeding half pipe 23, so that the water storage space can be connected with the annular gap. Finally, the water supplied into the water storage space by the water pump is rectified through the annular gap. The rectified water flow sprays the weft yarn, thereby realizing the function of the water jet loom nozzle.

[0032] like Figure 5 - Fig.11 As shown, the adjustment mechanism 3 includes a first base plate 31, a second base plate 32, a transmission rod 33, a first connecting rod 34 and a second connecting rod 35. The first base plate 31 and the second base plate 32 are slidably connected to the top of the front end of the base 1. The first base plate 31 is arranged at the rear side of the second base plate 32. The transmission rod 33 is rotatably connected to the base 1. The transmission rod 33 is arranged between the first base plate 31 and the second base plate 32. The first connecting rod 34 is hinged at the left end of the first base plate 31, and the second connecting rod 35 is hinged at the right end of the second base plate 32. A second dovetail groove 13 is provided at the top of the front end of the base 1, and the first base plate 31 and the second base plate 32 are slidably connected to the second dovetail groove 13; The first connecting rod 34 is arranged on the left side of the left nozzle component 21, the bottom of the first connecting rod 34 is hinged to the left end of the first base plate 31, the top of the first connecting rod 34 is hinged to the hinge seat 231 on the left nozzle component 21, and the second connecting rod 35 is arranged on the right side of the right nozzle component 22, the bottom of the second connecting rod 35 is hinged to the right end of the second base plate 32, and the top of the second connecting rod 35 is hinged to the hinge seat 231 on the right nozzle component 22; A transmission rack is disposed on the front side of the first substrate 31 , and a transmission rack is disposed on the rear side of the second substrate 32 . A first transmission gear 331 is fixedly connected to the top of the transmission rod 33 , and the first transmission gear 331 is meshed with the transmission rack.

[0033] In this embodiment, when the transmission rod 33 rotates, it can drive the first transmission gear 331 to rotate, and the rotation of the first transmission gear 331 can drive the first substrate 31 and the second substrate 32 to slide horizontally left and right; When the first transmission gear 331 rotates forward, the first substrate 31 and the second substrate 32 slide horizontally toward each other, and the first connecting rod 34 and the second connecting rod 35 can respectively drive the left nozzle component 21 and the right nozzle component 22 to rotate away from each other, that is, drive the nozzle assembly 2 to expand; when the first transmission gear 331 rotates reversely, the first substrate 31 and the second substrate 32 slide horizontally toward each other, and the first connecting rod 34 and the second connecting rod 35 can respectively drive the left nozzle component 21 and the right nozzle component 22 to rotate toward each other, that is, drive the nozzle assembly 2 to close.

[0034] like Fig. 9 - Fig.13 As shown, the driving mechanism 4 includes an adjusting tube 41, a driving rod 42 and an adjusting rod 43. The driving rod 42 is fixedly connected to one side of the adjusting tube 41 through a fixed cross bar, and the adjusting rod 43 is vertically slidably connected to the adjusting tube 41; A first dovetail groove 11 is provided at the bottom of the front end of the base 1, a side slide groove 12 is provided at the side of the base 1, a driving rod 42 is slidably connected in the first dovetail groove 11, a fixed cross bar passes through the side slide groove 12, an adjusting tube 41 is slidably connected to the side slide groove 12, a driving rack is provided on one side of the driving rod 42, a second transmission gear 332 is fixedly connected at the bottom of the transmission rod 33, and the driving rack is meshed with the second transmission gear 332; A top rod is fixedly connected to the top of the adjusting rod 43 , and a wire receiving groove 431 is provided on the top rod.

[0035] In this embodiment, pushing the push rod to slide horizontally forward and backward can drive the adjustment rod 43 to slide horizontally forward and backward, that is, drive the adjustment tube 41 to slide horizontally forward and backward. The arrangement of the wire receiving groove 431 enables the operator to put the wire end into the wire receiving groove 431, drive the wire end and the push rod to slide horizontally forward and backward together. When the driving mechanism 4 is not needed, the adjustment rod 43 can be stored in the adjustment tube 41. The adjusting tube 41 slides horizontally back and forth on the side slide groove 12, which can drive the driving rod 42 to slide horizontally back and forth at the bottom of the base 1. The horizontal sliding of the driving rod 42 can drive the second transmission gear 332 to rotate. The rotation of the second transmission gear 332 can drive the transmission rod 33 to rotate. When the driving rod 42 slides toward the rear end of the base 1, the transmission rod 33 rotates forward, that is, drives the nozzle assembly 2 to expand. When the driving rod 42 slides toward the front end of the base 1, the transmission rod 33 rotates in the forward direction, that is, drives the nozzle assembly 2 to close.

[0036] like Fig.12 As shown, the rear end of the base 1 is symmetrically fixedly connected with a sleeve 14, and the supporting mechanism 5 includes a left arc-shaped support plate 51 and a right arc-shaped support plate 52, and the left arc-shaped support plate 51 and the right arc-shaped support plate 52 are symmetrically slidably connected to the sleeve 14, and the left arc-shaped support plate 51 can support the left nozzle component 21, and the right arc-shaped support plate 52 can support the right nozzle component 22.

[0037] In this embodiment, during the expansion of the nozzle assembly 2, the left arc-shaped support plate 51 and the right arc-shaped support plate 52 can follow the rotation of the left nozzle component 21 and the right nozzle component 22 to make corresponding horizontal displacements, so as to adapt to the expanded state of the left nozzle component 21 and the right nozzle component 22 and better support the nozzle assembly 2. During the closing of the nozzle assembly 2, the left arc-shaped support plate 51 and the right arc-shaped support plate 52 can follow the rotation of the left nozzle component 21 and the right nozzle component 22 to make corresponding horizontal displacements. After the nozzle assembly 2 is closed, the left arc-shaped support plate 51 and the right arc-shaped support plate 52 can be reset, ensuring that the horizontal position and vertical height of the nozzle assembly 2 do not change after the closing, and the nozzle assembly 2 can directly work without adjustment after the weft is replaced.

[0038] Working principle: When working, when working normally, the two wire feeding half pipes 23 are closed to form a complete wire feeding pipe, the weft wire can pass through the inside of the wire feeding pipe, the water inlet shell 24 and the outer wall of the wire feeding half pipe 23 form a closed water storage space, and the connecting pipe 26 can be connected to the water pump to send water into the water storage space, the two water spraying half shells 25 and the front end of the complete wire feeding pipe form an annular gap, and the front side of the wire feeding half pipe 23 is provided with a plurality of inclined water channels, which can make the water storage space communicate with the annular gap, and finally realize that the water supplied by the water pump into the water storage space is rectified through the annular gap, and the rectified water flow sprays the weft wire, and the high-pressure water flow drives the weft wire into the water jet loom, and the water jet loom completes weaving; When the weft needs to be replaced, after the weft is installed in place, the thread end is pulled out, the adjusting rod 43 is pulled out from the adjusting tube 41, and the thread end is placed in the thread receiving groove 431, which drives the thread end and the top rod to slide horizontally toward the rear end of the base 1, that is, drives the adjusting tube 41 to slide horizontally toward the rear end of the base 1, and the driving rod 42 slides horizontally toward the rear end of the base 1 accordingly. The horizontal sliding of the driving rod 42 toward the rear end of the base 1 can drive the second transmission gear 332 to rotate forward, and the forward rotation of the second transmission gear 332 can drive the transmission rod 33 to rotate forward, and the forward rotation of the transmission rod 33 can drive the first transmission gear 331 to rotate forward. When the first transmission gear 331 rotates forward, the first base plate 31 and the second base plate 32 slide horizontally in the direction away from each other, and the first connecting rod 34 and the second connecting rod 35 can respectively drive the left nozzle component 21 and the right nozzle component 22 to rotate in the direction away from each other, that is, drive the nozzle assembly 2 to unfold. Then put the thread end into the unfolded nozzle assembly 2, pull the top rod to slide horizontally toward the front end of the base 1, and reset the adjustment tube 41. At this time, the driving rod 42 slides horizontally toward the front end of the base 1. The horizontal sliding of the driving rod 42 toward the front end of the base 1 can drive the second transmission gear 332 to reverse, and the reversal of the second transmission gear 332 can drive the transmission rod 33 to reverse, and the reversal of the transmission rod 33 can drive the first transmission gear 331 to reverse; When the first transmission gear 331 rotates in reverse, the first base plate 31 and the second base plate 32 slide horizontally toward each other, and the first connecting rod 34 and the second connecting rod 35 can respectively drive the left nozzle component 21 and the right nozzle component 22 to rotate in a direction close to each other, that is, drive the nozzle assembly 2 to close; At this point the replacement of the weft is complete and the machine can be started immediately to work.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A nozzle for a water jet loom, comprising a base (1) and a nozzle assembly (2), characterized in that: The base (1) is fixed on a side of the water jet loom, the nozzle assembly (2) is arranged on the base (1), the nozzle assembly (2) is composed of a left nozzle component (21) and a right nozzle component (22), the bottom of the left nozzle component (21) and the bottom of the right nozzle component (22) are hinged, the front side of the base (1) is slidably connected to an adjustment mechanism (3), the side of the base (1) is slidably connected to a driving mechanism (4), and the rear side of the base (1) is slidably connected to a supporting mechanism (5); The driving mechanism (4) is capable of driving the adjusting mechanism (3) to slide horizontally left and right; The adjustment mechanism (3) can drive the nozzle assembly (2) to expand or close by sliding horizontally left and right; The supporting mechanism (5) is capable of supporting the spray head assembly (2).

2. A nozzle for a water jet loom according to claim 1, characterized in that: The left nozzle component (21) and the right nozzle component (22) are both composed of a wire feeding half-tube (23), a water inlet shell (24), a water spraying half-shell (25) and a connecting pipe (26); the water inlet shell (24) is fixedly connected to the middle of the wire feeding half-tube (23); the water spraying half-shell (25) is fixedly connected to the rear end of the wire feeding half-tube (23); the connecting pipe (26) is fixedly connected to one side of the water inlet shell (24); and a hinge seat (231) is fixedly connected to one side of the front end of the wire feeding half-tube (23).

3. A nozzle for a water jet loom according to claim 2, characterized in that: The adjustment mechanism (3) comprises a first base plate (31), a second base plate (32), a transmission rod (33), a first connecting rod (34) and a second connecting rod (35); the first base plate (31) and the second base plate (32) are slidably connected to the top of the front end of the base (1); the first base plate (31) is arranged on the rear side of the second base plate (32); the transmission rod (33) is rotatably connected to the base (1); the transmission rod (33) is arranged between the first base plate (31) and the second base plate (32); the first connecting rod (34) is hingedly connected to the left end of the first base plate (31); and the second connecting rod (35) is hingedly connected to the right end of the second base plate (32).

4. A nozzle for a water jet loom according to claim 3, characterized in that: A second dovetail groove (13) is provided at the top of the front end of the base (1), and the first base plate (31) and the second base plate (32) are slidably connected to the second dovetail groove (13).

5. A nozzle for a water jet loom according to claim 4, characterized in that: The first connecting rod (34) is arranged on the left side of the left nozzle component (21), the bottom of the first connecting rod (34) is hinged to the left end of the first base plate (31), and the top of the first connecting rod (34) is hinged to the hinge seat (231) on the left nozzle component (21); the second connecting rod (35) is arranged on the right side of the right nozzle component (22), the bottom of the second connecting rod (35) is hinged to the right end of the second base plate (32), and the top of the second connecting rod (35) is hinged to the hinge seat (231) on the right nozzle component (22).

6. A nozzle for a water jet loom according to claim 5, characterized in that: A transmission rack is arranged on the front side of the first substrate (31), a transmission rack is arranged on the rear side of the second substrate (32), a first transmission gear (331) is fixedly connected to the top of the transmission rod (33), and the first transmission gear (331) is meshed with the transmission rack.

7. A nozzle for a water jet loom according to claim 3, characterized in that: The driving mechanism (4) comprises an adjusting tube (41), a driving rod (42) and an adjusting rod (43); the driving rod (42) is fixedly connected to one side of the adjusting tube (41) via a fixed cross bar; and the adjusting rod (43) is vertically slidably connected to the adjusting tube (41).

8. A nozzle for a water jet loom according to claim 7, characterized in that: The front end bottom of the base (1) is provided with a first dovetail groove (11), the side of the base (1) is provided with a side slide groove (12), the driving rod (42) is slidably connected in the first dovetail groove (11), the fixed cross bar passes through the side slide groove (12), the adjusting tube (41) is slidably connected to the side slide groove (12), a driving rack is provided on one side of the driving rod (42), a second transmission gear (332) is fixedly connected to the bottom of the transmission rod (33), and the driving rack is meshed with the second transmission gear (332).

9. A nozzle for a water jet loom according to claim 8, characterized in that: The top of the adjusting rod (43) is fixedly connected to a push rod, and a wire receiving groove (431) is provided on the push rod.

10. A nozzle for a water jet loom according to claim 1, characterized in that: The rear end of the base (1) is symmetrically fixedly connected to a sleeve (14); the supporting mechanism (5) comprises a left arc-shaped supporting plate (51) and a right arc-shaped supporting plate (52); the left arc-shaped supporting plate (51) and the right arc-shaped supporting plate (52) are symmetrically slidably connected to the sleeve (14); the left arc-shaped supporting plate (51) can support the left nozzle component (21), and the right arc-shaped supporting plate (52) can support the right nozzle component (22).

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