Weft insertion structure of air jet loom

Abstract

The utility model belongs to the technical field of loom wefting insertion, and particularly relates to an air jet loom wefting insertion structure which comprises a base, a first supporting shaft is rotationally connected in the base, one end of the first supporting shaft is fixedly connected with a sliding rail, a movable seat is slidably installed in the sliding rail, a bolt is inserted in the movable seat, and a second supporting shaft is fixedly connected to one end of the first supporting shaft. A nut is mounted on the surface of the bolt in a threaded manner; and the upper surface of the moving seat is fixedly connected with a supporting plate. The sliding rail is arranged, the moving seats can slide in the sliding rail, so that the distance between the two moving seats is adjusted, the right end of the first accelerating pipe is inserted into the conical nozzle, the positions of the moving seats are fixed through cooperation of nuts and bolts, and a first rubber gasket in the conical nozzle and a rubber gasket at the right end of the first accelerating pipe extrude each other; and when the interior of the first accelerating tube is inflated, air flow can drive the yarn to move rightwards in the first accelerating tube, the yarn can enter the interior of the second yarn guiding device through the conical nozzle, and deviation is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of weft insertion of looms, and in particular relates to a weft insertion structure of an air jet loom. Background Art

[0002] Air jet loom is a shuttleless loom that uses high-speed airflow generated by compressed air to pull the weft yarn through the shed to complete the weft insertion. It is currently the fastest-growing type of shuttleless loom. The working principle of the air jet loom is to use air as the weft insertion medium, and use the ejected compressed airflow to generate friction traction on the weft yarn to pull the weft yarn through the shed, and achieve the purpose of weft insertion through the jet generated by the air jet. This weft insertion method can enable the loom to achieve high speed and high production.

[0003] The patent application (application number: CN202021257739.8) discloses a weft insertion device for an air jet loom, the purpose of which is to prevent the axis of the two auxiliary main nozzles from being offset as much as possible due to the vibration generated during weaving. The connection structure includes a mounting portion and a connecting member connecting the two retaining blocks, and the mounting portion is composed of two mounting surfaces formed on the mounting surfaces of each retaining block and orthogonal to each other. The connecting member is formed in an L-shaped cross section so that it can abut against the two mounting surfaces at the same time, and the connecting member has a size larger than the distance between the two retaining blocks in the length direction.

[0004] In the above application, in actual operation, there is still a distance between the front accelerating tube and the rear yarn guide, so when threading the yarn, one end of the yarn is easily deviated from the rear yarn guide, which causes the yarn to fail to enter the rear yarn guide. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a weft insertion structure of an air jet loom.

[0006] To achieve the above object, the utility model provides the following technical solution: a weft insertion structure of an air jet loom, comprising a base, a support shaft 1 is rotatably connected inside the base, one end of the support shaft 1 is fixedly connected to a slide rail, a movable seat is slidably installed inside the slide rail, a bolt is inserted inside the movable seat, and a nut is threadedly installed on the surface of the bolt;

[0007] The upper surface of the movable seat is fixedly connected with a support plate, the top of the support plate is fixedly connected with a first guide wire, the top of the support plate is fixedly connected with a first accelerating tube, the top of the support plate is fixedly connected with a second guide wire, and one side of the second guide wire is provided with a conical nozzle;

[0008] A rubber gasket 1 is fixedly connected to the inner wall of the conical nozzle, and a rubber gasket 2 is fixedly connected to one end of the accelerating tube 1;

[0009] The top of the support plate is fixedly connected with the second accelerating tube, the surfaces of the first accelerating tube and the second accelerating tube are fixedly connected with air inlet nozzles, and the interior of the air inlet nozzle is fixedly connected with a connecting pipe.

[0010] Preferably, a through slot for the bolt to pass through is provided on the side of the slide rail.

[0011] Preferably, one end of the support shaft one is fixedly connected to a ratchet, one side of the base is fixedly connected to the support shaft two, the surface of the support shaft two is rotatably connected to a movable rod, one side of the movable rod is fixedly connected to a clamping protrusion, and one end of the movable rod is fixedly connected to a handle.

[0012] Preferably, one side of the base is fixedly connected to a fixing seat, one side of the fixing seat is fixedly connected to a spring, and one end of the spring is fixedly connected to the movable rod.

[0013] Preferably, the maximum diameter of the conical nozzle is greater than the diameter of the accelerating tube 1.

[0014] Preferably, there are two slide rails, wire guide 1 and accelerating tube 1 are located on one slide rail, and wire guide 2 and accelerating tube 2 are located on another slide rail.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The weft insertion structure of the air jet loom is provided with a slide rail, and the movable seat can slide inside the slide rail, so as to adjust the distance between the two movable seats, which is conducive to inserting the right end of the accelerating tube 1 into the conical nozzle, and the position of the movable seat is fixed by the nut and the bolt. The rubber gasket 1 in the conical nozzle and the rubber gasket at the right end of the accelerating tube 1 are squeezed against each other, which is conducive to improving the sealing performance. When the interior of the accelerating tube 1 is inflated, the airflow can drive the yarn to move rightward in the accelerating tube 1 and enter the interior of the wire guide 2 through the conical nozzle, so as to avoid deviation. Since the conical nozzle has high sealing performance, the airflow can continue to drive the yarn to enter the accelerating tube 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention, and together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation on the present invention. In the drawings:

[0018] Figure 1 It is a complete structural schematic diagram of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 This is a top perspective structural diagram of the utility model;

[0021] Figure 4 For this utility model Figure 3 Enlarged view of point B in the middle;

[0022] Figure 5 It is a partial cross-sectional view of the utility model;

[0023] Figure 6 For this utility model Figure 5 Enlarged view of point A in the middle.

[0024] In the figure: 1. base; 2. support shaft 1; 3. slide rail; 4. moving seat; 5. bolt; 6. nut; 7. support plate; 8. wire guide 1; 9. accelerating tube 1; 10. wire guide 2; 11. conical nozzle; 12. rubber gasket 1; 13. rubber gasket 2; 14. accelerating tube 2; 15. air inlet nozzle; 16. connecting pipe; 17. through groove; 18. ratchet; 19. support shaft 2; 20. movable rod; 21. clamping cam; 22. handle; 23. fixed seat; 24. spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides the following technical solutions: a weft insertion structure of an air jet loom, comprising a base 1, a support shaft 2 is rotatably connected inside the base 1, one end of the support shaft 2 is fixedly connected to a slide rail 3, a movable seat 4 is slidably installed inside the slide rail 3, a bolt 5 is inserted inside the movable seat 4, and a nut 6 is threadedly installed on the surface of the bolt 5;

[0027] The upper surface of the moving seat 4 is fixedly connected with a support plate 7, the top of the support plate 7 is fixedly connected with a wire guide 1 8, the top of the support plate 7 is fixedly connected with an accelerating tube 1 9, the top of the support plate 7 is fixedly connected with a wire guide 2 10, and a conical nozzle 11 is provided on one side of the wire guide 2 10;

[0028] The inner wall of the conical nozzle 11 is fixedly connected with a rubber gasket 12, and one end of the accelerating tube 9 is fixedly connected with a rubber gasket 2 13;

[0029] The top of the support plate 7 is fixedly connected with an accelerating tube 2 14 , the surfaces of the accelerating tube 1 9 and the accelerating tube 2 14 are fixedly connected with an air inlet nozzle 15 , and the interior of the air inlet nozzle 15 is fixedly connected with a connecting pipe 16 .

[0030] In this embodiment, by providing a slide rail 3, the movable seat 4 can slide inside the slide rail 3, so as to adjust the distance between the two movable seats 4, which is conducive to inserting the right end of the accelerating tube 9 into the conical nozzle 11, and the nut 6 cooperates with the bolt 5 to facilitate fixing the position of the movable seat 4. The rubber gasket 12 in the conical nozzle 11 and the rubber gasket 13 at the right end of the accelerating tube 9 are squeezed against each other, which is conducive to improving the sealing performance. When the interior of the accelerating tube 9 is inflated, the airflow can drive the yarn to move to the right in the accelerating tube 9, and can enter the interior of the wire guide 2 10 through the conical nozzle 11 to avoid deviation. Since the conical nozzle 11 has a high sealing performance, the airflow can continue to drive the yarn into the accelerating tube 2 14.

[0031] Specifically, a through slot 17 for the bolt 5 to pass through is opened on the side of the slide rail 3 . The provision of the through slot 17 facilitates the bolt 5 to pass through the slide rail 3 , so that tightening the nut 6 facilitates fixing the slide rail 3 .

[0032] Specifically, one end of the support shaft 2 is fixedly connected to the ratchet 18, one side of the base 1 is fixedly connected to the support shaft 2 19, the surface of the support shaft 2 19 is rotatably connected to the movable rod 20, one side of the movable rod 20 is fixedly connected to a clamping protrusion 21, and one end of the movable rod 20 is fixedly connected to a handle bar 22. When the left end of the slide rail 3 moves downward, the ratchet 18 is driven to roll counterclockwise through the support shaft 2. Since the clamping protrusion 21 can be stuck on the ratchet 18, it is beneficial to fix the angle of the slide rail 3. The handle bar 22 is beneficial to driving the movable rod 22 to tilt, which is beneficial to disengage the clamping protrusion 21 from the ratchet 18, thereby facilitating the resetting of the slide rail 3.

[0033] Specifically, one side of the base 1 is fixedly connected to a fixing seat 23, one side of the fixing seat 23 is fixedly connected to a spring 24, one end of the spring 24 is fixedly connected to the movable rod 20, the setting of the spring 24 is conducive to pushing the bottom end of the movable rod 20, so as to facilitate the engagement of the latching protrusion 21 with the ratchet 18, when the handle 22 drives the movable rod 22 to tilt, the spring 24 will be stretched, and at this time the spring 24 has a pullback force, which is conducive to driving the movable rod 22 to reset.

[0034] Specifically, the maximum diameter of the conical nozzle 11 is larger than the diameter of the accelerating tube 9, which is conducive to one end of the accelerating tube 9 entering the conical nozzle 11, thereby facilitating the combination of the rubber gasket 12 and the rubber gasket 2 13.

[0035] Specifically, there are two slide rails 3, the wire guide 1 8 and the accelerating tube 1 9 are located on one slide rail 3, and the wire guide 2 10 and the accelerating tube 2 14 are located on the other slide rail 3. By sliding the two slide rails 3, the wire guide 1 8 and the accelerating tube 1 9, and the wire guide 2 10 and the accelerating tube 2 14 can be driven to move respectively.

[0036] The working principle or use process of the utility model: when the utility model is in use, the angle of the slide rail 3 is first adjusted, and when the left end of the slide rail 3 is pressed downward, the ratchet 18 is driven to roll counterclockwise through the supporting shaft 2. Since the clamping protrusion 21 can be clamped on the ratchet 18, the clamping protrusion 21 is conducive to fixing the angle of the slide rail 3, or the movable rod 22 is driven to tilt by the handle 22, so that the clamping protrusion 21 is disengaged from the ratchet 18, so as to facilitate the left end of the slide rail 3 to move upward. After the angle of the slide rail 3 is adjusted, the nut 6 can be loosened, and then the moving seat 4 on the left side is slid close to the moving seat 4 on the right side, so that the right end of the accelerating tube 9 is inserted into the conical nozzle 11, and then the nut 6 is tightened to fix the moving seat 4, and the rubber gasket 12 in the conical nozzle 11 and the The rubber gaskets 13 at the right end of the accelerating tube 9 are squeezed against each other, which is beneficial to improve the sealing performance. The external air pipe can be connected to the connecting tube 16, so that the airflow can enter the accelerating tube through the air inlet nozzle 15, so that one end of the yarn enters from the left side of the wire guide 8, passes through the wire guide 8 and enters the accelerating tube 9. When the interior of the accelerating tube 9 is inflated, the airflow can drive the yarn to move to the right in the accelerating tube 9, and can enter the interior of the wire guide 2 10 through the conical nozzle 11. Since the conical nozzle 11 has a high sealing performance, the airflow can continue to drive the yarn into the accelerating tube 2 14. Then when the interior of the accelerating tube 2 14 is inflated, the airflow can drive the yarn to be finally discharged from the right end of the accelerating tube 2 14. The accelerating tube 2 14 plays a role in assisting in accelerating the movement of the yarn.

[0037] Finally, it should be noted that the above is only the preferred embodiment of the utility model, and is not intended to limit the utility model. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, technicians in the field can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein by equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A weft insertion structure for an air jet loom, comprising a base (1), characterized in that: The base (1) is rotatably connected to a support shaft (2) inside, one end of the support shaft (2) is fixedly connected to a slide rail (3), a movable seat (4) is slidably mounted inside the slide rail (3), a bolt (5) is inserted inside the movable seat (4), and a nut (6) is threadedly mounted on the surface of the bolt (5); The upper surface of the movable seat (4) is fixedly connected to a support plate (7), the top of the support plate (7) is fixedly connected to a guide wire 1 (8), the top of the support plate (7) is fixedly connected to an accelerating tube 1 (9), the top of the support plate (7) is fixedly connected to a guide wire 2 (10), and one side of the guide wire 2 (10) is provided with a conical mouth (11); The inner wall of the conical nozzle (11) is fixedly connected with a rubber gasket 1 (12), and one end of the accelerating tube 1 (9) is fixedly connected with a rubber gasket 2 (13); The top of the support plate (7) is fixedly connected to an accelerating tube 2 (14), the surfaces of the accelerating tube 1 (9) and the accelerating tube 2 (14) are fixedly connected to an air inlet nozzle (15), and the interior of the air inlet nozzle (15) is fixedly connected to a connecting pipe (16).

2. The weft insertion structure of an air jet loom according to claim 1, characterized in that: A through slot (17) for the bolt (5) to pass through is provided on the side of the slide rail (3).

3. The weft insertion structure of an air jet loom according to claim 1, characterized in that: One end of the support shaft 1 (2) is fixedly connected to a ratchet (18), one side of the base (1) is fixedly connected to a support shaft 2 (19), a surface of the support shaft 2 (19) is rotatably connected to a movable rod (20), one side of the movable rod (20) is fixedly connected to a locking protrusion (21), and one end of the movable rod (20) is fixedly connected to a handlebar (22).

4. The weft insertion structure of an air jet loom according to claim 3, characterized in that: A fixing seat (23) is fixedly connected to one side of the base (1), a spring (24) is fixedly connected to one side of the fixing seat (23), and one end of the spring (24) is fixedly connected to the movable rod (20).

5. The weft insertion structure of an air jet loom according to claim 1, characterized in that: The maximum diameter of the conical mouth (11) is greater than the diameter of the accelerating tube (9).

6. The weft insertion structure of an air jet loom according to claim 1, characterized in that: There are two slide rails (3), the first guide wire (8) and the first accelerating tube (9) are located on one slide rail (3), and the second guide wire (10) and the second accelerating tube (14) are located on the other slide rail (3).

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