Water blocking device of water jet loom and water jet loom

Abstract

The application discloses a water blocking device of a water jet loom and the water jet loom, and relates to the field of water jet looms.The water blocking device comprises a machine body, a controller is arranged on the machine body, guide rollers and collecting rollers are rotationally connected to the ends of the machine body, and a water blocking plate is arranged at the top end of the machine body.A first sliding groove is arranged on the top surface of the water blocking plate.The application has the advantages that water jet weaving can be carried out only after the water blocking plate is installed, thus, irregular operation can be avoided, and the work without the water blocking plate cannot be carried out, so that the safety hazard is reduced, the water flow is blocked in the first time, the influence of water leakage is reduced, the degree of water flow splashing is reduced when the weft yarn is ensured to be pulled, the weft yarn tension is prevented from being too large, the weft yarn is prevented from being easily broken, the quality of the fabric is ensured, the new fabric width does not need to change the diameter of the water pump plunger, the cost investment is reduced, the device does not need to be disassembled, the operation process is simplified, and the weaving efficiency is ensured.

Description

Technical Field

[0001] This invention relates to the field of water jet looms, specifically to a water-blocking device for a water jet loom and a water jet loom. Background Technology

[0002] The textile process of a water jet loom can be divided into the following core steps: raw material preparation and pretreatment, warping process, warping and heddle configuration, weft insertion and weaving, and warp feeding and take-up. In the weft insertion and weaving process, a high-pressure water flow is generated by a water pump, and then a high-speed water jet is formed through a nozzle to pull the weft yarn through the shed. The beat-up mechanism then tightly interweaves the weft yarn with the warp yarn to form the fabric structure.

[0003] During the above process, the sealing strips at the joints between the water baffle and the frame need to be checked regularly to prevent leakage and water accumulation in the workshop. This also protects the water jet loom and prevents damage to it. At the same time, during the process of water flow pulling the weft yarn, the length of the water flow is the same as the length of the weft yarn being pulled. While the weft-beating mechanism moves the weft yarn, it will beat the water flow, causing water to splash. If the water flow is allowed to pass through the weft-beating mechanism, the length of the weft yarn pulled by the water flow will exceed the predetermined length. If the weft yarn reaches a certain length, the yarn clamping device will tighten the weft yarn and wait for the water flow to pass through the weft-beating mechanism. At this time, the friction between the water flow and the weft yarn will increase sharply, resulting in excessive weft yarn tension. This not only makes the weft yarn prone to breakage but also affects the quality of the fabric.

[0004] A search revealed that Chinese patent application CN222226742U discloses a water-blocking device for a water-jet loom and a water-jet loom. Although the structure is simple and the water blocking and observation effects are good, it cannot solve the problem of water flow length and weft yarn traction length. At the same time, when the water-blocking plate is loose, it cannot immediately block the water flow and cannot fully reduce the impact of water leakage. It also cannot prevent irregular operation, making it possible to work without a water-blocking plate, which increases the safety hazard. Summary of the Invention

[0005] The purpose of this invention is to provide a water-blocking device for a water-jet loom and a water-jet loom.

[0006] To address the problems mentioned in the background art, the present invention provides the following technical solution: a water jet loom, comprising a machine body, a controller mounted on the machine body, and guide rollers and collecting rollers rotatably connected to the ends of the machine body, and a water baffle plate placed at the top of the machine body;

[0007] One end of the machine body has a collection chamber, the other end of the machine body has a sliding chamber, and the inner side wall of the machine body has a groove. The baffle plate has a water conveying channel. One end of the water conveying channel is fixedly connected to a suction tube, and the other end of the water conveying channel is fixedly connected to a guide tube. The bottom end of the guide tube has an annular groove. A sliding ring is fitted inside the annular groove. A collar is fixedly connected to the outer surface of the sliding ring. The outer surface of the collar has a second external thread.

[0008] A fixing frame is fixedly connected to the side wall of the body. A motor is installed on the side wall of the fixing frame. One end of a transmission shaft is fixedly connected to the output end of the motor. The other end of the transmission shaft is fixedly connected to a turntable. A clamping groove is formed on the end face of the turntable. A bidirectional threaded rod is slidably sleeved in the clamping groove. Clamping blocks are meshingly sleeved at both ends of the bidirectional threaded rod. One end of an arm rod is sleeved at the end of the bidirectional threaded rod. The other end of the arm rod is hinged to a hinge block. One end of a pull rod is fixedly connected to the side wall of the hinge block. The other end of the pull rod is fixedly connected to a sliding plate. First and second piston rods are fixedly connected to both ends of the sliding plate. A first sleeve is sleeved outside the first piston rod. An input pipe and an output pipe are communicated with the end face of the first sleeve. A connecting block is fixedly connected to the end of the input pipe. A first external thread is formed on the outer surface of the connecting block. A nozzle is communicated with the end of the output pipe. A second sleeve is sleeved outside the second piston rod. One end of an air guide pipe is communicated with the end face of the second sleeve. The other end of the air guide pipe is communicated with a telescopic rod. A yarn clamping plate is fixedly connected to the output end of the telescopic rod.

[0009] As a further scheme of the present invention: The suction pipe extends into the collection chamber. The conduit is in interference fit with the embedding groove. The collar is meshingly sleeved with the bottom wall of the embedding groove through a second external thread, and the second external thread does not have self-locking property. The top surface of the collection chamber is an inclined slope.

[0010] As a further scheme of the present invention: The cross section of the clamping groove is in a shape of Chinese character 'tu'. There are two clamping blocks, and the two clamping blocks are in a shape of quadrangular prism. The clamping groove blocks the rotation of the clamping blocks.

[0011] As a further scheme of the present invention: The bidirectional threaded rod clamps the clamping groove through the two clamping blocks, and the bidirectional threaded rod deviates from the central axis of the turntable.

[0012] As a further scheme of the present invention: The pull rod is slidably sleeved with the side wall of the sliding cavity. The sliding plate is sleeved with the sliding cavity. The first sleeve, the second sleeve, the output pipe and the air guide pipe are all fixedly sleeved with the body. The nozzle is fixedly connected to the inner surface of the body.

[0013] As a further scheme of the present invention: A guide hole is formed on the body. The central axis of the guide hole coincides with the central axis of the nozzle. The yarn clamping plate is slidably sleeved with the body, and the moving track of the yarn clamping plate intersects with the guide hole.

[0014] As a further scheme of the present invention: The connecting block is meshingly sleeved with the collar through the first external thread, and the first external thread does not have self-locking property. A first one-way valve is installed between the input pipe and the first sleeve. A second one-way valve is installed between the output pipe and the first sleeve.

[0015] A water-blocking device for a water-jet loom includes a first sliding groove on the top surface of a water-blocking plate, a second sliding groove on the side wall of the first sliding groove, a guide groove on the side wall of the second sliding groove extending into the machine body, and a groove on the top surface of the second sliding groove. A sliding rod is slidably sleeved in the groove, a return spring is fixedly connected between the sliding rod and the end face of the groove, and a locking block is fixedly connected to the bottom surface of the sliding rod. The locking block is slidably sleeved with the guide groove. A sliding button is slidably connected in the first sliding groove, and a top block is fixedly connected to the side wall of the sliding button. The side walls of the top block and the locking block are both inclined slopes.

[0016] As a further embodiment of the present invention: the top block is slidably sleeved with the second sliding groove, and four first sliding grooves and four sliding buttons are provided, with the four first sliding grooves and four sliding buttons located at the four corners of the baffle plate.

[0017] Compared with the prior art, the beneficial effects of the present invention, using the above technical solution, are as follows:

[0018] This invention uses a collar that gradually contacts the connecting block and engages with the first external thread on the connecting block during its rotation. This allows the collar to secure the conduit and the connecting block, sealing the gap between them and creating negative pressure. This allows the collection chamber, suction pipe, water delivery channel, conduit, and input pipe to connect, enabling water in the collection chamber to flow into the input pipe and into the first sleeve through negative pressure. Therefore, water spraying can only be performed after the baffle is installed, thus preventing improper operation and ensuring that work cannot be carried out without the baffle, significantly reducing safety hazards. Similarly, when the baffle is loose, the first and second external threads do not have self-locking properties, causing the collar to disengage from the connecting block. This prevents water from entering the first sleeve through negative pressure, preventing the nozzle from spraying water and thus immediately blocking the water flow, significantly reducing the impact of leakage.

[0019] This invention uses a sliding plate on a pull rod to drive the first and second piston rods in a reciprocating motion. The first piston rod pressurizes and pumps water from the first sleeve into the output pipe, where it is then ejected through a nozzle. Simultaneously, the second piston rod compresses air from the second sleeve into an air guide pipe, which in turn feeds air into a telescopic rod. This telescopic rod causes the yarn clamping plate to rise, releasing the weft yarn. This achieves precise coordination between water jetting and weft yarn release. When the first and second piston rods return to their original positions, the first piston rod creates a negative pressure in the first sleeve. The water flow from the nozzle is cut off, and the second piston rod causes the second sleeve to draw back the gas in the telescopic rod, causing the clamping plate on the telescopic rod to fall and re-clamp the weft yarn. During the above process, the time for the weft yarn to be released and re-clamped is twice the time for the water flow from the nozzle, that is, the length of the weft yarn release is twice the length of the water flow. At this time, the length of the water flow struck by the weft-beating mechanism is 1 / 2 of the fabric width. Thus, while ensuring the weft yarn traction, the degree of water splashing is greatly reduced, and excessive weft yarn tension is avoided. This not only makes the weft yarn less prone to breakage, but also ensures the quality of the fabric.

[0020] This invention utilizes a bidirectional threaded rod on a rotary table to move the clamping blocks on the threaded rod to both ends, thereby releasing the clamping blocks from the slots. Further movement of the bidirectional threaded rod shortens the distance between it and the drive shaft, thus reducing the reciprocating stroke of the pull rod. This process indirectly reduces the nozzle's spray volume and spray time, shortening the travel of the water flow and weft yarn to accommodate new fabric widths. It eliminates the need to change the water pump plunger diameter, reducing costs and simplifying operation by eliminating the need to disassemble the device, thus ensuring weaving efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a water-jet loom water-blocking device and a water-jet loom according to the present invention;

[0022] Figure 2 As described in the embodiments of the present invention Figure 1 Enlarged view of the structure of section A in the middle;

[0023] Figure 3 This is a half-sectional schematic diagram of the first chute structure in an embodiment of the present invention;

[0024] Figure 4 This is a schematic cross-sectional view of the waterway structure in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the nozzle structure in an embodiment of the present invention;

[0026] Figure 6 As described in the embodiments of the present invention Figure 5 Enlarged view of the structure of section B;

[0027] Figure 7 This is a schematic diagram of the baffle structure in an embodiment of the present invention;

[0028] Figure 8 As described in the embodiments of the present invention Figure 7 Enlarged view of the structure of section C;

[0029] Figure 9 This is a cross-sectional view of the turntable structure in an embodiment of the present invention.

[0030] In the diagram: 1. Machine body; 2. Controller; 3. Guide roller; 4. Collecting roller; 5. Water baffle; 6. First chute; 7. Second chute; 8. Guide groove; 9. Groove; 10. Locking block; 11. Slide rod; 12. Return spring; 13. Slide button; 14. Top block; 15. Collecting chamber; 16. Slide chamber; 17. Inserted groove; 18. Water delivery channel; 19. Suction pipe; 20. Guide tube; 21. Fixing frame; 22. Motor; 23. Drive shaft; 24. Turntable; 25. Locking groove; 26. 27. Double-threaded rod; 28. Clamping block; 29. ​​Arm; 30. Hinge block; 31. Pull rod; 32. Slide plate; 33. First piston rod; 34. Second piston rod; 35. First sleeve; 36. Second sleeve; 37. Input pipe; 38. Connecting block; 39. First external thread; 40. Ring groove; 41. Slip ring; 42. Collar; 43. Second external thread; 44. Output pipe; 45. Nozzle; 46. Air guide pipe; 47. Telescopic rod; 48. Yarn clamping plate; 49. Guide hole. Detailed Implementation

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example 1: Please refer to Figures 4-6 The present invention provides a technical solution: a water-blocking device for a water-jet loom and a water-jet loom, wherein a collection cavity 15 is provided at one end of the machine body 1, a sliding cavity 16 is provided at the other end of the machine body 1, and a groove 17 is provided on the inner side wall of the machine body 1. A water conveying channel 18 is provided in the water-blocking plate 5. A suction pipe 19 is fixedly connected to one end of the water conveying channel 18, and a guide tube 20 is fixedly connected to the other end of the water conveying channel 18. An annular groove 39 is provided at the bottom end of the guide tube 20. A sliding ring 40 is sleeved in the annular groove 39. A collar 41 is fixedly connected to the outer surface of the sliding ring 40. A second external thread 42 is provided on the outer surface of the collar 41.

[0033] Please see Figure 4 and Figure 7The straw 19 extends into the collection chamber 15, the conduit 20 is fitted into the groove 17, the collar 41 is engaged with the bottom wall of the groove 17 through the second external thread 42, and the second external thread 42 does not have self-locking properties. The top surface of the collection chamber 15 is an inclined slope.

[0034] Specifically, during the installation of the baffle plate 5, the baffle plate 5 is placed on top of the machine body 1, and the suction tube 19 on the baffle plate 5 is inserted into the collection chamber 15. The guide tube 20 on the baffle plate 5 is inserted into the groove 17. During the insertion of the guide tube 20 into the groove 17, the collar 41 at the bottom of the guide tube 20 contacts the bottom wall of the groove 17. The collar 41 engages with the bottom wall of the groove 17 through the second external thread 42. As the guide tube 20 descends further, the collar 41 at the bottom of the guide tube 20 rotates around the annular groove 39. At this time, the collar 41 gradually contacts the connecting block 37 and engages with the first external thread 38 on the connecting block 37 during its rotation. This causes the collar 41 to fasten the guide tube 20 and the connecting block 37, and seal the guide tube 20 and the connecting block 37. The gap between the two allows for negative pressure, which in turn connects the collection chamber 15, suction pipe 19, water delivery channel 18, conduit 20, and input pipe 36. This allows water in the collection chamber 15 to flow into the input pipe 36 and into the first sleeve 34 through negative pressure. Therefore, water spraying can only be carried out after the baffle plate 5 is installed, thus avoiding irregular operation and making it impossible to work without the baffle plate 5, which greatly reduces safety hazards. Similarly, when the baffle plate 5 is loose, the first external thread 38 and the second external thread 42 do not have self-locking properties, causing the collar 41 to disengage from the connecting block 37. This prevents water from entering the first sleeve 34 through negative pressure, and the nozzle 44 cannot spray water, thus blocking the water flow immediately and greatly reducing the impact of water leakage.

[0035] Example 2: Please refer to Figures 4-9, the present invention provides a technical solution: a water retaining device for a water jet loom and a water jet loom. A fixing frame 21 is fixedly connected to the side wall of the machine body 1. A motor 22 is installed on the side wall of the fixing frame 21. One end of a transmission shaft 23 is fixedly connected to the output end of the motor 22. The other end of the transmission shaft 23 is fixedly connected to a turntable 24. A clamping groove 25 is formed on the end face of the turntable 24. A bidirectional threaded rod 26 is slidably sleeved in the clamping groove 25. Clamping blocks 27 are meshingly sleeved at both ends of the bidirectional threaded rod 26. One end of an arm rod 28 is sleeved at the end of the bidirectional threaded rod 26. The other end of the arm rod 28 is hinged to a hinge block 29. One end of a pull rod 30 is fixedly connected to the side wall of the hinge block 29. The other end of the pull rod 30 is fixedly connected to a sliding plate 31. First and second piston rods 32 and 33 are fixedly connected to both ends of the sliding plate 31. A first sleeve 34 is sleeved outside the first piston rod 32. An input pipe 36 and an output pipe 43 are connected to the end face of the first sleeve 34. One end of a connecting block 37 is fixedly connected to the end of the input pipe 36. A first external thread 38 is formed on the outer surface of the connecting block 37. A nozzle 44 is connected to the end of the output pipe 43. A second sleeve 35 is sleeved outside the second piston rod 33. One end of an air guide pipe 45 is connected to the end face of the second sleeve 35. The other end of the air guide pipe 45 is connected to a telescopic rod 46. A yarn clamping plate 47 is fixedly connected to the output end of the telescopic rod 46.

[0036] Please refer to Figure 9 , the cross-section of the clamping groove 25 is in a T-shaped setting. There are two clamping blocks 27, and the two clamping blocks 27 are in a prismatic setting. The clamping groove 25 blocks the rotation of the clamping blocks 27.

[0037] Please refer to Figure 5 and Figure 9 , the bidirectional threaded rod 26 clamps the clamping groove 25 through the two clamping blocks 27, and the bidirectional threaded rod 26 deviates from the central axis of the turntable 24.

[0038] Please refer to Figure 4 、 Figure 5 and Figure 7 , the pull rod 30 is slidably sleeved with the side wall of the sliding cavity 16. The sliding plate 31 is sleeved with the sliding cavity 16. The first sleeve 34, the second sleeve 35, the output pipe 43 and the air guide pipe 45 are all fixedly sleeved with the machine body 1. The nozzle 44 is fixedly connected to the inner surface of the machine body 1.

[0039] Please refer to Figure 7 and Figure 8 , a guide hole 48 is formed on the machine body 1. The central axis of the guide hole 48 coincides with the central axis of the nozzle 44. The yarn clamping plate 47 is slidably sleeved with the machine body 1, and the movement track of the yarn clamping plate 47 intersects with the guide hole 48.

[0040] Please refer to Figure 5 and Figure 6The connecting block 37 is engaged with the collar 41 through the first external thread 38. The first external thread 38 does not have self-locking properties. A first check valve is installed between the input pipe 36 and the first sleeve 34, and a second check valve is installed between the output pipe 43 and the first sleeve 34.

[0041] Specifically, during the fabric weaving process, the motor 22 on the fixed frame 21 is started, causing the motor 22 to drive the turntable 24 to rotate via the transmission shaft 23. The turntable 24 then drives one end of the arm 28 to move via the bidirectional threaded rod 26, causing the other end of the arm 28 to pull the pull rod 30 to reciprocate. At this time, the slide plate 31 on the pull rod 30 drives the first piston rod 32 and the second piston rod 33 to reciprocate. This causes the first piston rod 32 to pressurize the water flow in the first sleeve 34 and pump it into the output pipe 43, from which the water is sprayed out through the nozzle 44. Simultaneously, the second piston rod 33 compresses the air in the second sleeve 35 into the air guide pipe 45, and then inputs it into the telescopic rod 46 through the air guide pipe 45. This causes the telescopic rod 46 to drive the yarn clamping plate 47 to rise, thereby causing the yarn clamping plate 47 to release. The release of the weft yarn achieves precise coordination between water jetting and weft yarn release. When the first piston rod 32 and the second piston rod 33 return, the first piston rod 32 creates a negative pressure in the first sleeve 34, simultaneously cutting off the water jetting from the nozzle 44. Meanwhile, the second piston rod 33 causes the second sleeve 35 to draw back the gas from the telescopic rod 46, causing the clamping plate 47 on the telescopic rod 46 to fall and re-clamp the weft yarn. During the above process, the time for weft yarn release and re-clamping is twice the time for water jetting from the nozzle 44, that is, the weft yarn release length is twice the water jet length. At this time, the length of the water jet struck by the beater mechanism is 1 / 2 of the fabric width. Thus, while ensuring weft yarn traction, the degree of water jet splashing is significantly reduced, and excessive weft yarn tension is avoided. This not only makes the weft yarn less prone to breakage but also ensures the quality of the fabric.

[0042] Example 3: Please refer to Figures 1-4 This invention provides a technical solution: a water-blocking device for a water-jet loom and a water-jet loom, including a machine body 1, a controller 2 installed on the machine body 1, and a guide roller 3 and a collecting roller 4 rotatably connected to the end of the machine body 1. A water-blocking plate 5 is placed at the top of the machine body 1. A first sliding groove 6 is formed on the top surface of the water-blocking plate 5. A second sliding groove 7 is formed on the side wall of the first sliding groove 6. A guide groove 8 is formed on the side wall of the second sliding groove 7. The guide groove 8 extends into the machine body 1. A groove 9 is formed on the top surface of the second sliding groove 7. A sliding rod 11 is slidably sleeved in the groove 9. A return spring 12 is fixed between the sliding rod 11 and the end face of the groove 9. A locking block 10 is fixedly sleeved on the bottom surface of the sliding rod 11. The locking block 10 is slidably sleeved with the guide groove 8. A sliding button 13 is slidably connected in the first sliding groove 6. A top block 14 is fixedly sleeved on the side wall of the sliding button 13. The side walls of the top block 14 and the locking block 10 are both inclined surfaces.

[0043] Please see Figures 1-3The top block 14 is slidably connected to the second slide groove 7. There are four first slide grooves 6 and four slide buttons 13, and the four first slide grooves 6 and four slide buttons 13 are located at the four corners of the baffle plate 5.

[0044] Specifically, during the fabric width change process, the bidirectional threaded rod 26 on the rotary table 24 causes the clamping blocks 27 on the bidirectional threaded rod 26 to move to both ends, thereby releasing the clamping blocks 27 from the slots 25. Then, the bidirectional threaded rod 26 is moved, shortening the distance between the bidirectional threaded rod 26 and the drive shaft 23, which in turn shortens the stroke of the pull rod 30. According to the above process, the spray volume and spray time of the nozzle 44 are indirectly reduced, and the stroke of the water flow and weft yarn is shortened to adapt to the new fabric width. There is no need to change the diameter of the water pump plunger, reducing cost investment. At the same time, there is no need to disassemble the device, simplifying the operation process and ensuring weaving efficiency.

[0045] The working principle and usage process of this invention are as follows: When weaving fabric, the baffle plate 5 is placed at the top of the machine body 1, and the suction tube 19 on the baffle plate 5 is inserted into the collection chamber 15. The guide tube 20 on the baffle plate 5 is inserted into the groove 17. During the insertion of the guide tube 20 into the groove 17, the collar 41 at the bottom of the guide tube 20 contacts the bottom wall of the groove 17. The collar 41 engages with the bottom wall of the groove 17 through the second external thread 42. As the guide tube 20 descends further, the collar 41 at the bottom of the guide tube 20 rotates around the annular groove 39. At this time, the collar 41 gradually contacts the connecting block 37 and engages with the first external thread 38 on the connecting block 37 during its rotation. This causes the collar 41 to fasten the guide tube 20 and the connecting block 37, and seal the guide tube 20 and the connecting block 37. The gap between the connecting blocks 37 allows for negative pressure, which in turn connects the collecting chamber 15, the suction pipe 19, the water supply channel 18, the conduit 20, and the input pipe 36. This allows water in the collecting chamber 15 to flow into the input pipe 36 and into the first sleeve 34 through negative pressure. Therefore, water spraying can only be performed after the baffle plate 5 is installed, thus avoiding irregular operations and preventing work from being carried out without the baffle plate 5, significantly reducing safety hazards. Similarly, when the baffle plate 5 is loose, the first external thread 38 and the second external thread 42 do not have self-locking properties, causing the collar 41 to disengage from the connecting block 37. This prevents water from entering the first sleeve 34 through negative pressure, preventing the nozzle 44 from spraying water, thus blocking the water flow immediately and significantly reducing the impact of water leakage.

[0046] After the baffle plate 5 is installed, the motor 22 on the fixing frame 21 is started, which drives the turntable 24 to rotate through the transmission shaft 23. The turntable 24 drives one end of the arm 28 to move through the double-threaded rod 26, causing the other end of the arm 28 to pull the pull rod 30 to move reciprocally. At this time, the slide plate 31 on the pull rod 30 drives the first piston rod 32 and the second piston rod 33 to move reciprocally. The first piston rod 32 pressurizes the water in the first sleeve 34 and pumps it into the output pipe 43, and sprays the water out through the nozzle 44. At the same time, the second piston rod 33 compresses the air in the second sleeve 35 into the air guide pipe 45, and inputs it into the telescopic rod 46 through the air guide pipe 45. The telescopic rod 46 drives the yarn clamping plate 47 to rise, thereby releasing the yarn clamping plate 47. The weft yarn achieves precise coordination between water jetting and weft yarn release. When the first piston rod 32 and the second piston rod 33 return, the first piston rod 32 creates a negative pressure in the first sleeve 34, simultaneously cutting off the water jetting from the nozzle 44. Meanwhile, the second piston rod 33 causes the second sleeve 35 to draw back the gas in the telescopic rod 46, causing the clamping plate 47 on the telescopic rod 46 to fall and re-clamp the weft yarn. In the above process, the time for weft yarn release and re-clamping is twice the time for water jetting from the nozzle 44, that is, the weft yarn release length is twice the water jet length. At this time, the length of the water jet struck by the weft-beating mechanism is 1 / 2 of the fabric width. Thus, while ensuring weft yarn traction, the degree of water jet splashing is significantly reduced, and excessive weft yarn tension is avoided. This not only makes the weft yarn less prone to breakage but also ensures the quality of the fabric.

[0047] When the fabric width changes, the bidirectional threaded rod 26 on the rotary table 24 causes the clamping blocks 27 on the bidirectional threaded rod 26 to move to both ends, thereby releasing the clamping blocks 27 from the slots 25. Then, the bidirectional threaded rod 26 is moved, shortening the distance between the bidirectional threaded rod 26 and the drive shaft 23, which in turn shortens the stroke of the pull rod 30. According to the above process, the spray volume and spray time of the nozzle 44 are indirectly reduced, and the stroke of the water flow and weft yarn is shortened to adapt to the new fabric width. There is no need to change the diameter of the water pump plunger, reducing cost investment. At the same time, there is no need to disassemble the device, simplifying the operation process, ensuring weaving efficiency, and completing the operation.

[0048] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A water-jet loom, characterized in that, Includes a body (1), on which a controller (2) is installed, and a guide roller (3) and a collecting roller (4) are rotatably connected to the end of the body (1), and a baffle plate (5) is placed at the top of the body (1). The machine body (1) has a collection cavity (15) at one end and a sliding cavity (16) at the other end. The inner wall of the machine body (1) has a groove (17). The baffle plate (5) has a water conveying channel (18). One end of the water conveying channel (18) is fixedly connected to a suction tube (19). The other end of the water conveying channel (18) is fixedly connected to a conduit (20). The bottom end of the conduit (20) has an annular groove (39). A sliding ring (40) is fitted inside the annular groove (39). A collar (41) is fixedly connected to the outer surface of the sliding ring (40). A second external thread (42) is formed on the outer surface of the collar (41). A fixed frame (21) is fixedly connected to the side wall of the body (1). A motor (22) is installed on the side wall of the fixed frame (21). One end of a transmission shaft (23) is fixedly connected to the output end of the motor (22). A turntable (24) is fixedly connected to the other end of the transmission shaft (23). A slot (25) is provided on the end face of the turntable (24). A bidirectional threaded rod (26) is slidably sleeved in the slot (25). Both ends of the bidirectional threaded rod (26) are engaged with clamps (27). One end of an arm (28) is sleeved on the end of the bidirectional threaded rod (26). A hinge block (29) is hinged to the other end of the arm (28). One end of a pull rod (30) is fixedly connected to the side wall of the hinge block (29). A slide plate (31) is fixedly connected to the other end of the pull rod (30). The two ends of the slide plate (31) are fixedly connected to a first piston rod (32) and a second piston rod (33). The first piston rod (32) is fitted with a first sleeve (34). The end face of the first sleeve (34) is connected to an input pipe (36) and an output pipe (43). The end of the input pipe (36) is fixedly connected to a connecting block (37). The outer surface of the connecting block (37) is provided with a first external thread (38). The end of the output pipe (43) is connected to a nozzle (44). The second piston rod (33) is fitted with a second sleeve (35). The end face of the second sleeve (35) is connected to one end of an air guide pipe (45). The other end of the air guide pipe (45) is connected to a telescopic rod (46). The output end of the telescopic rod (46) is fixedly connected to a yarn clamping plate (47). The machine body (1) is provided with a guide hole (48), the central axis of the guide hole (48) coincides with the central axis of the nozzle (44), the yarn clamping plate (47) is slidably sleeved with the machine body (1), and the movement trajectory of the yarn clamping plate (47) intersects with the guide hole (48).

2. A water-jet loom according to claim 1, characterized in that: The straw (19) extends into the collection chamber (15). The conduit (20) is fitted and connected with the groove (17). The collar (41) is meshed and sleeved with the bottom wall of the groove (17) through the second external thread (42), and the second external thread (42) does not have self-locking property. The top surface of the collection chamber (15) is an inclined slope.

3. A water-jet loom according to claim 1, characterized in that: The cross-section of the clamping groove (25) is in a shape of Chinese character 'tu'. There are two clamping blocks (27), and the two clamping blocks (27) are in a shape of quadrangular prism. The clamping groove (25) blocks the rotation of the clamping blocks (27).

4. A water-jet loom according to claim 1, characterized in that: The double-headed螺纹杆 (26) clamps the clamping groove (25) through the two clamping blocks (27), and the double-headed螺纹杆 (26) deviates from the central axis of the turntable (24).

5. A water-jet loom according to claim 1, characterized in that: The pull rod (30) is slidably sleeved with the side wall of the sliding chamber (16). The sliding plate (s31) is sleeved with the sliding chamber (16). The first sleeve (34), the second sleeve (35), the output pipe (43) and the air guide pipe (45) are all fixedly sleeved with the machine body (1). The nozzle (44) is fixedly connected with the inner surface of the machine body (1).

6. A water-jet loom according to claim 1, characterized in that: The connecting block (37) is meshed and sleeved with the collar (41) through the first external thread (38), and the first external thread (38) does not have self-locking property. A first one-way valve is installed between the input pipe (36) and the first sleeve (34), and a second one-way valve is installed between the output pipe (43) and the first sleeve (34).

7. A water-blocking device for a water-jet loom according to any one of claims 1-6, characterized in that: It includes a first chute (6) opened on the top surface of the water baffle (5). A second chute (7) is opened on the side wall of the first chute (6). A guide groove (8) is opened on the side wall of the second chute (7). The guide groove (8) extends into the machine body (1). A groove (9) is opened on the top surface of the second chute (7). A slide bar (11) is slidably sleeved in the groove (9). A return spring (12) is fixedly connected between the slide bar (11) and the end face of the groove (9). A clamping block (10) is fixedly connected to the bottom surface of the slide bar (11). The clamping block (10) is slidably sleeved with the guide groove (8). A slide button (13) is slidably connected in the first chute (6). A top block (14) is fixedly connected to the side wall of the slide button (13). The side walls of the top block (14) and the clamping block (10) are both inclined slopes.

8. A water-blocking device for a water-jet loom according to claim 7, characterized in that: The top block (14) is slidably sleeved with the second chute (7). There are four first chutes (6) and four slide buttons (13), and the four first chutes (6) and the four slide buttons (13) are located at the four corners of the water baffle (5).

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