Weft insertion adjusting device of air jet loom
By designing the slide plate, slide groove, vertical rod, slider, and drive components, the problem of limited applicability of the chuck distance adjustment on the jet loom was solved, enabling stable flight and convenient maintenance of high-precision fabrics.
Patent Information
- Application Number
- CN202520262045.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing weft insertion adjustment devices for air-jet looms have limited applicability when adjusting the distance between the guide plates, making it difficult to meet the needs of high-precision fabrics.
By setting up a slide plate, slide groove, vertical bar, slider and drive components, the equal distance adjustment of the plate is realized, and the stability and directionality of the slide plate movement are ensured by the cooperation of limit strip and guide groove, and precise adjustment is achieved by using servo motor drive.
It improves the applicability of the weft insertion adjustment device for air-jet looms, ensures the stable flight trajectory of high-precision fabrics, and facilitates maintenance and disassembly.
Smart Images

Figure CN223646723U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air-jet loom technology, specifically to an air-jet loom weft insertion adjustment device. Background Technology
[0002] The weft insertion adjustment device of the air-jet loom mainly relies on compressed air to achieve weft insertion. The air compressor compresses the air to a certain pressure and then delivers it to the main nozzle and auxiliary nozzle through pipelines. The main nozzle is located on one side of the loom and is the main power source for weft insertion. When weft insertion begins, the main nozzle first ejects a high-speed airflow. The speed and pressure of the airflow are preset according to the requirements of the fabric and the characteristics of the weft yarn.
[0003] A search revealed that the Chinese patent with publication number CN220538058U discloses a weft insertion adjustment device for an air-jet loom. The key technical point is that when adjusting the position of the weft insertion, the user can start a servo motor through an external control device. The servo motor can synchronously drive five sets of connecting screws to rotate through a transmission guide shaft. This allows the five sets of connecting screws to synchronously drive five sets of air nozzle clamps to make precise displacements within the limit guide rods through threaded slides. This facilitates precise control of the position of the auxiliary air pump by the air nozzle clamps, improving the convenience of the equipment.
[0004] However, in existing technologies, when weaving high-precision, high-quality fabrics, such as fine silk or high-count cotton fabrics, the chucks need to be adjusted at equal distances. Equal-distance adjustment of the chucks ensures that the weft yarn is uniformly guided and supported during flight, making the weft yarn flight trajectory more stable and accurate. However, existing devices generally can only adjust the positions of multiple chucks in the same direction, which limits the applicability of the device. In order to solve the problem that it is not convenient to adjust the distance between the chucks according to actual needs in the existing technology, this application proposes to set up an equal-distance adjustment component to change the relative position between the sliders, and drive the corresponding chucks to move through the sliders, thereby achieving the effect of equal-distance adjustment and increasing the applicability of the device. Therefore, a new solution is needed to solve this problem. Utility Model Content
[0005] In view of the above-mentioned background technology, the existing technology has the shortcomings and defects of not being convenient to adjust the distance between the plates according to actual needs, which limits the applicability of the device.
[0006] The present invention discloses a weft insertion adjustment device for an air-jet loom, comprising a support base, a limit rod on the support base, a slider on the limit rod, a locking plate on the slider, a vertical rod below the slider, a sliding plate below the vertical rod, a sliding groove on the sliding plate, the vertical rod slidingly disposed with the sliding groove, and a driving assembly disposed between the sliding plate and the support base.
[0007] Furthermore, a limit strip is provided at the lower end of the slide plate, and a guide groove is provided on the support base at the corresponding position of the limit strip, and the limit strip is slidably disposed with the guide groove.
[0008] Furthermore, the drive assembly includes a drive rod and a lead screw, both of which are rotatably mounted on the support base. The lead screw is threadedly connected to the slide plate, and a worm gear is mounted on the lead screw. A worm is mounted on the drive rod, and the worm gear meshes with the worm for transmission.
[0009] Furthermore, there are two lead screws, which are symmetrically arranged on the upper end of the slide plate.
[0010] Furthermore, a sleeve is provided between the slider and the limiting rod. The sleeve is installed on the slider and is slidably disposed with respect to the limiting rod. The slider and the clamping plate are connected by fixing bolts.
[0011] Furthermore, two limiting strips are provided, and the two limiting strips are symmetrically arranged at the lower end of the slide plate. The limiting strips are in the shape of a boss with a smaller upper end and a larger lower end.
[0012] Furthermore, both ends of the worm gear are provided with fixing plates, one end of which is mounted on the support base, and the fixing plate and the support base are integrally formed.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This utility model, through the provision of a slide plate, a groove, a vertical rod, and a slider, allows the slide plate component to move on the support base during operation via a drive assembly. Simultaneously, the slide plate component moves by cooperating with the groove on the slide plate and the vertical rod component, causing the corresponding slider to move on the limit rod and drive the clamping plate component to move accordingly. This achieves equidistant adjustment of the clamping plate component, thereby improving the applicability of the device.
[0015] 2. This utility model, by setting a limiting strip component and a guide groove, allows the limiting strip to move along with the sliding plate component during operation through the cooperation between the limiting strip component and the guide groove. The limiting strip slides in the guide groove, thereby guiding and restricting the movement direction and position of the sliding plate, thus improving the stability of the sliding plate during operation. The clamping plate and the slider are connected by fixing bolts, allowing the operator to disassemble and repair the clamping plate component. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0019] Figure 3 This is an exploded view of the present invention;
[0020] Figure 4 This is a schematic diagram of the slider structure of this utility model.
[0021] In the diagram: 1. Support base; 2. Limiting rod; 3. Slider; 4. Sleeve; 5. Clamping plate; 6. Mounting hole; 7. Fixing bolt; 8. Vertical rod; 9. Slide plate; 10. Slide groove; 11. Limiting strip; 12. Guide groove; 13. Lead screw; 14. Drive rod; 15. Worm gear; 16. Worm wheel. Detailed Implementation
[0022] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.
[0023] Please see Figure 1 , Figure 3 As shown, the weft insertion adjustment device for an air-jet loom of this utility model includes a support base 1, a limiting rod 2 on the support base 1, a slider 3 on the limiting rod 2, a locking plate 5 on the slider 3, and mounting holes 6 on the locking plate 5. The locking plate 5 plays the role of precisely guiding and stabilizing the weft yarn, and is used to fix auxiliary nozzles or yarn guides and other components to ensure that the weft yarn has an accurate flight path during air-jet traction. A vertical rod 8 is provided at the lower part of the slider 3, and a sliding plate 9 is provided below the vertical rod 8. The sliding plates 9 are symmetrically arranged, and a sliding groove 10 is provided on the sliding plate 9. The vertical rod 8 slides with the sliding groove 10. A drive assembly is provided between the sliding plate 9 and the support base 1.
[0024] In this embodiment, a limiting strip 11 is provided at the lower end of the slide plate 9, and a guide groove 12 is provided on the support base 1 at the corresponding position of the limiting strip 11. The limiting strip 11 and the guide groove 12 are slidably disposed. When the slide plate 9 moves, the limiting strip 11 moves along with it. The limiting strip 11 slides in the guide groove 12. Through the cooperation between the guide groove 12 and the limiting strip 11, the position of the slide plate 9 is restricted, and its movement direction is guided.
[0025] Combination Figure 1 , Figure 2 As shown, the drive assembly includes a drive rod 14 and a lead screw 13. Both the lead screw 13 and the drive rod 14 are rotatably mounted on the support base 1. A servo motor is provided at one end of the drive rod 14. The lead screw 13 is threadedly connected to the slide plate 9. A worm gear 16 is mounted on the lead screw 13. A worm 15 is mounted on the drive rod 14. The worm gear 16 and the worm 15 mesh and transmit power. When the servo motor is started, it drives the drive rod 14 to rotate, and the drive rod 14 drives the worm 15 to rotate. By changing the rotation direction of the servo motor, the movement direction of the slide plate 9 is changed.
[0026] In this embodiment, two lead screws 13 are provided, and the two lead screws 13 are symmetrically arranged on the upper end of the slide plate 9. The symmetrical arrangement makes the two ends of the slide plate 9 evenly stressed, thereby improving the stability of the slide plate 9 during movement.
[0027] like Figure 4 As shown, a sleeve 4 is provided between the slider 3 and the limiting rod 2. The sleeve 4 is installed on the slider 3 and is slidably disposed with the limiting rod 2. The slider 3 and the clamping plate 5 are connected by a fixing bolt 7. When the slider 3 moves, it drives the sleeve 4 to move along with it. The sleeve 4 slides on the limiting rod 2, thereby restricting and guiding the movement direction of the slider 3 and preventing deviation.
[0028] Looking back Figure 1 As shown, there are two limit bars 11. The two limit bars 11 are symmetrically arranged at the lower end of the slide plate 9. The limit bars 11 are protrusions with a smaller upper end and a larger lower end, so that the force between the lower part of the slide plate 9 and the support seat 1 is uniform, which improves the stability of the slide plate 9 during movement.
[0029] Both ends of the worm gear 15 are provided with fixing plates. One end of the fixing plate is installed on the support base 1, and the fixing plate and the support base 1 are integrally formed, which improves the limiting effect on the drive rod 14 and prevents it from shaking during operation.
[0030] The implementation principle is as follows: When the position of the card plate 5 needs to be adjusted, the servo motor drives the drive rod 14 to rotate, the drive rod 14 drives the worm gear 15 to rotate, the worm gear 15 meshes with the worm wheel 16 to adjust the lead screw 13 to rotate, the lead screw 13 drives the slide plate 9 to slide on the support seat 1, the slide plate 9 moves at the same time the vertical rod 8 moves in the slide groove 10, the vertical rod 8 drives the slider 3 to move on the limit rod 2, the slider 3 drives the card plate 5 to move, thereby realizing the equidistant adjustment of the position of the card plate 5.
[0031] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A weft insertion adjustment device for an air-jet loom, comprising a support base (1), characterized in that: The support base (1) is provided with a limiting rod (2), the limiting rod (2) is provided with a slider (3), the slider (3) is provided with a locking plate (5), the slider (3) is provided with a vertical rod (8) at the bottom, the vertical rod (8) is provided with a sliding plate (9) below, the sliding plate (9) is provided with a sliding groove (10), the vertical rod (8) and the sliding groove (10) are slidably disposed, and a driving component is provided between the sliding plate (9) and the support base (1).
2. The weft insertion adjustment device for an air-jet loom according to claim 1, characterized in that: The lower end of the slide plate (9) is provided with a limiting strip (11), and the support seat (1) at the corresponding position of the limiting strip (11) is provided with a guide groove (12). The limiting strip (11) and the guide groove (12) are slidably disposed.
3. The weft insertion adjustment device for an air-jet loom according to claim 1, characterized in that: The drive assembly includes a drive rod (14) and a lead screw (13). The lead screw (13) and the drive rod (14) are rotatably mounted on the support base (1). The lead screw (13) is threadedly connected to the slide plate (9). A worm wheel (16) is mounted on the lead screw (13), and a worm (15) is mounted on the drive rod (14). The worm wheel (16) and the worm (15) mesh and transmit power.
4. The weft insertion adjustment device for an air-jet loom according to claim 3, characterized in that: There are two lead screws (13), which are symmetrically arranged on the upper end of the slide plate (9).
5. The weft insertion adjustment device for an air-jet loom according to claim 1, characterized in that: A sleeve (4) is provided between the slider (3) and the limiting rod (2). The sleeve (4) is installed on the slider (3). The sleeve (4) is slidably disposed with the limiting rod (2). The slider (3) is connected to the clamping plate (5) by a fixing bolt (7).
6. The weft insertion adjustment device for an air-jet loom according to claim 2, characterized in that: There are two limiting strips (11), which are symmetrically arranged at the lower end of the slide plate (9). The limiting strips (11) are protrusions with a smaller upper end and a larger lower end.
7. The weft insertion adjustment device for an air-jet loom according to claim 3, characterized in that: Both ends of the worm (15) are provided with fixing plates. One end of the fixing plate is installed on the support base (1), and the fixing plate and the support base (1) are integrally formed.
Citation Information
Patent Citations
Weft insertion adjusting device of air jet loom
CN220538058U