A weft insertion adjustment device for an air jet loom

Abstract

The application relates to the field of air-jet loom equipment, in particular to a weft insertion adjusting device of an air-jet loom, which comprises two groups of supporting clamping bases for supporting, and a limiting rotating seat for limiting is arranged on the upper end face of the two groups of supporting clamping bases. When the yarn is centrally guided, the servo motor can drive a plurality of driven gears to rotate through the driving gear synchronous belt, the plurality of driven gears can synchronously drive the air guide clamping cylinder and the weft insertion air cylinder to rotate, the air injection hole and the spiral guide groove in the weft insertion air cylinder can form spiral wind power, and then the guided yarn is centrally positioned, and meanwhile, in cooperation with the axial high-pressure air force, the efficiency and accuracy of the weft insertion guidance of the yarn can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of air-jet loom equipment technology, specifically to an air-jet loom weft insertion adjustment device. Background Technology

[0002] An air-jet loom is a shuttleless loom that uses jet airflow to pull the weft yarn through the shed. Its working principle is to use air as the weft-guiding medium. The compressed airflow generated by the jet creates a frictional traction force on the weft yarn, which is then pulled through the shed to complete the weaving process.

[0003] For example, the utility model patent disclosed in publication number CN214271194U discloses a weft insertion device for an air-jet loom, including a base, a box mounted on the upper part of the base, an opening on the front end of the box, and sliding grooves mounted near the front end on both sides of the opening. A protective cover is vertically mounted within the sliding grooves, and two locking blocks are symmetrically welded to the bottom of the protective cover. A weft insertion assembly is installed inside the box, and an air suction hood is mounted on the lower side of the weft insertion assembly. A negative pressure fan is mounted at the bottom of the air suction hood, and suction pipes are connected to both sides of the lower part of the negative pressure fan. A dust collection trough is connected to the other end of the suction pipes. This utility model effectively protects the weft insertion process, preventing fly lint from adhering to the weft yarn during air-jet weft insertion. Simultaneously, the negative pressure suction generated by the negative pressure fan mounted on the lower side of the weft insertion assembly draws lint and other debris from the weft yarn surface into the dust collection trough, reducing interference from lint on the weft insertion process. It has advantages such as good performance.

[0004] Although the aforementioned air-jet loom weft insertion device can perform weft insertion operations on yarn, the centering stability of the aforementioned weft insertion device is insufficient, which reduces the efficiency of subsequent weft insertion of yarn. Therefore, an air-jet loom weft insertion adjustment device is needed to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a weft insertion adjustment device for an air-jet loom to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a weft insertion adjustment device for an air-jet loom, comprising two sets of support brackets for support, and a limiting rotating seat for limiting the position is provided on the upper end surface of each of the two sets of support brackets.

[0007] The guide screw is provided in two sets, and both sets of the guide screw are rotatably engaged with the inner end face of the limiting rotary seat. Synchronous pulleys are provided at both ends of the guide screw. The two sets of synchronous pulleys on the same side are connected by a synchronous belt. A reduction motor is provided on the outer end face of the limiting rotary seat opposite the guide screw.

[0008] The weft insertion device is provided in four sets, and the four sets of weft insertion devices are slidably connected to the inner end faces of the two sets of support brackets through the guide screw thread;

[0009] An air guiding device is fixedly installed on the upper end face of the weft insertion device.

[0010] Preferably, the weft insertion device includes a fixed bracket, the upper end face of which is provided with two sets of threaded slides for guidance, and seven sets of limiting slots are equidistantly opened on the inner end face of the fixed bracket. A centering device is rotatably engaged on the inner end face of the limiting slots. A servo motor is provided on the lower end face of the fixed bracket near the side, and a drive gear is fixedly provided at the output end of the servo motor.

[0011] Preferably, the centering device includes a weft insertion air cylinder for support. The inner end face of the weft insertion air cylinder has six sets of spiral guide grooves equidistantly provided, and air jet holes are equidistantly provided on the inner end face of the weft insertion air cylinder. The upper end face of the weft insertion air cylinder has six sets of air guide branches equidistantly provided, and air guide clamps are fixedly provided on the upper end faces of the six sets of air guide branches. Driven gears are fixedly provided on the outer end faces of the six sets of air guide branches, and an air guide groove is provided at the center of the inner end face of the driven gear.

[0012] Preferably, the air guiding device includes an air storage box, with seven sets of weft insertion air holes evenly spaced on the inner end face of the air storage box, and two sets of air supply conduits located at both ends of the air storage box. A sealing tube is provided on the lower end face of the air storage box directly opposite the weft insertion air holes, a sealing seat is provided on the lower end face of the air storage box directly opposite the sealing tube, and a sealing groove is provided on the lower end face of the air storage box directly opposite the sealing seat.

[0013] Preferably, the limiting groove is adapted to the air guide tube, and the weft insertion tube is adapted to the air guide tube through the limiting groove and thus rotated and locked inside the fixed seat. The limiting groove can provide sufficient limiting foundation for the air guide tube to pass through, thereby improving the stability of the subsequent centering device rotating inside the fixed seat.

[0014] Preferably, the driving gear and the driven gear are meshed together, and the air guide cylinder, air guide branch pipe and weft insertion cylinder are connected in a continuous manner, which can improve the stability of the subsequent air storage box in guiding the air supply inside the weft insertion cylinder.

[0015] Preferably, the interior of the weft insertion air cylinder is hollow, the spiral guide groove is spirally arranged, and the air jet hole is parallel to the spiral guide groove. The spiral guide groove and the air jet hole are both spirally arranged, which facilitates the formation of a spirally centered air force when the weft insertion air cylinder rotates at high speed, thereby improving the stability of yarn delivery.

[0016] Preferably, the sealing seat is sealed and rotatedly engaged with the air guide cylinder through the sealing groove, and the sealing groove and the air guide cylinder can be connected to each other, thereby improving the subsequent supply of high-pressure gas and improving the stability of the guide and centering of the production line.

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

[0018] 1. When centering and guiding the yarn, the servo motor can synchronously drive multiple sets of driven gears to rotate through the driving gear. The multiple sets of driven gears can synchronously drive the air guide cylinder and the weft insertion cylinder to rotate, so that the air jet holes and spiral guide grooves inside the weft insertion cylinder can form a spiral wind force, thereby centering and positioning the guided yarn. At the same time, in conjunction with the axial high-pressure wind force, the efficiency and accuracy of weft insertion and guiding the yarn can be effectively improved.

[0019] 2. When the present invention performs synchronous positioning and control of multiple centering devices, the geared motor can synchronously drive two sets of guide screws to rotate through the synchronous belt and synchronous pulley. The two sets of guide screws can be connected to the threaded slide block through the thread, thereby synchronously driving the multiple sets of centering devices to move synchronously. This effectively provides the accuracy of subsequent positioning and alignment control of the centering devices. At the same time, the driving gear can effectively improve the power utilization efficiency of the equipment through meshing and linkage with multiple sets of driven gears. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is an exploded view of the main body of the present invention;

[0022] Figure 2 This is a schematic diagram of the main body of the present invention;

[0023] Figure 3 This is an exploded view of the weft insertion device of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the weft insertion device of the present invention;

[0025] Figure 5 This is an exploded view of the centering device of the present invention;

[0026] Figure 6 This is a schematic diagram of the centering device of the present invention;

[0027] Figure 7 This is a schematic diagram of the air guiding device of the present invention;

[0028] Figure 8 This is a side view of the air guiding device of the present invention.

[0029] In the diagram: 1-Gear motor, 2-Weft insertion device, 3-Support bracket, 4-Air guide device, 5-Synchronous belt, 6-Synchronous pulley, 7-Guide screw, 8-Limiting rotary seat, 21-Limiting groove, 22-Fixed bracket, 23-Threaded slide, 24-Centering device, 25-Servo motor, 26-Drive gear, 241-Air guide groove, 242-Driven gear, 243-Air guide cylinder, 244-Air guide branch pipe, 245-Weft insertion air cylinder, 246-Helical guide groove, 247-Air jet hole, 41-Air storage box, 42-Weft insertion air hole, 43-Air supply duct, 44-Sealing bracket, 45-Sealing groove, 46-Sealing insert. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] The invention will be further described below with reference to the accompanying drawings.

[0033] Example 1

[0034] Please see Figure 1-8 The present invention provides an embodiment of a weft insertion adjustment device for an air-jet loom, comprising two sets of support brackets 3 for support, and a limiting rotating seat 8 for limiting the position is provided on the upper end surface of each set of support brackets 3.

[0035] The guide screw 7 is provided in two sets, and both sets of guide screw 7 are rotatably engaged with the inner end face of the limiting rotary seat 8. Synchronous pulleys 6 are provided at both ends of the guide screw 7. The two sets of synchronous pulleys 6 on the same side are connected by a synchronous belt 5. A reduction motor 1 is provided on the outer end face of the limiting rotary seat 8 opposite to the guide screw 7.

[0036] The weft insertion device 2 has four sets, and the four sets of weft insertion devices 2 are slidably connected to the inner end faces of the two sets of support brackets 3 by the guide screw 7.

[0037] Air guiding device 4 is fixedly installed on the upper end face of weft insertion device 2.

[0038] The weft insertion device 2 includes a fixed bracket 22. The upper end face of the fixed bracket 22 is provided with two sets of threaded slides 23 for guidance. Seven sets of limiting slots 21 are equally spaced on the inner end face of the fixed bracket 22. A centering device 24 is rotatably engaged on the inner end face of the limiting slots 21. A servo motor 25 is provided on the lower end face of the fixed bracket 22 near the side. A drive gear 26 is fixedly provided at the output end of the servo motor 25.

[0039] The centering device 24 includes a weft insertion air cylinder 245 for support. The inner end face of the weft insertion air cylinder 245 is provided with six sets of spiral guide grooves 246 at equal intervals, and air jet holes 247 are provided at equal intervals on the inner end face of the weft insertion air cylinder 245. The upper end face of the weft insertion air cylinder 245 is provided with six sets of air guide branches 244 at equal intervals, and an air guide clamp 243 is fixedly provided on the upper end face of the six sets of air guide branches 244. A driven gear 242 is fixedly provided on the outer end face of the six sets of air guide branches 244, and an air guide groove 241 is provided at the center of the inner end face of the driven gear 242.

[0040] The air guiding device 4 includes an air storage box 41. Seven sets of weft insertion air holes 42 are equidistantly opened on the inner end face of the air storage box 41. Two sets of air supply pipes 43 are provided on both sides of the air storage box 41. A sealing tube 46 is provided on the lower end face of the air storage box 41, directly opposite the weft insertion air hole 42. A sealing seat 44 is provided on the lower end face of the air storage box 41, directly opposite the sealing tube 46. A sealing groove 45 is opened on the lower end face of the air storage box 41, directly opposite the sealing seat 44.

[0041] The limiting groove 21 is adapted to the air guide tube 243, and the weft insertion tube 245 is adapted to the air guide tube 243 through the limiting groove 21 and thus rotated and locked inside the fixed seat 22. The limiting groove 21 can provide sufficient limiting foundation for the air guide tube 243 to pass through, thereby improving the stability of the subsequent centering device 24 rotating inside the fixed seat 22.

[0042] The driving gear 26 meshes with the driven gear 242, and the air guide cylinder 243, the air guide branch pipe 244 and the weft insertion cylinder 245 are connected in a continuous manner, which can improve the stability of the air supply guidance of the subsequent air storage box 41 to the inside of the weft insertion cylinder 245.

[0043] The interior of the weft insertion air cylinder 245 is hollow, and the spiral guide groove 246 is spirally arranged. The air jet hole 247 is parallel to the spiral guide groove 246. The spiral guide groove 246 and the air jet hole 247 are both spirally arranged, which facilitates the formation of a spirally centered air force when the weft insertion air cylinder 245 rotates at high speed, thereby improving the stability of yarn delivery.

[0044] The sealing bracket 44 is sealed and rotated to engage with the air guide tube 243 through the sealing slot 45. The sealing slot 45 and the air guide tube 243 can be connected to each other, thereby improving the subsequent supply of high-pressure gas and improving the stability of the guide tube centering.

[0045] Working Principle: Before use, the user can connect the equipment to the external air supply device to ensure sufficient airflow for guiding the yarn within the weft insertion device 2. Simultaneously, the operator can quickly and accurately adjust the docking position of the weft insertion device 2. During alignment, the operator can start the reduction motor 1. The reduction motor 1, via the synchronous belt 5, synchronously drives two sets of synchronous pulleys 6 to rotate. Simultaneously, the two sets of synchronous pulleys 6 synchronously drive two sets of guide screws 7 to rotate. When the two sets of guide screws 7 rotate, they connect with four sets of threaded slides 23, thereby synchronously adjusting the precise position of the subsequent centering device 24 docking with the external guide tube. When inserting the weft, the external air pipe can be connected to the air supply pipe 43. The external air supply module then guides the yarn and high-pressure gas into the air guide cylinder. Inside 243 and the weft insertion cylinder 245, the operator can start the servo motor 25. At this time, the servo motor 25 can drive multiple sets of driven gears 242 on the side to rotate. When the driven gears 242 rotate, they can drive the weft insertion cylinder 245 and the air guide cylinder 243 to rotate in a sealed manner inside the sealing seat 44. At the same time, due to the high pressure of the air supply pipe 43 through the air guide pipe, the sealing slot 45 can guide the gas through the air guide cylinder 243 and the air guide branch pipe 244 into the weft insertion cylinder 245. When the yarn is introduced into the weft insertion cylinder 245, the multiple sets of air jet holes 247 inside the weft insertion cylinder 245 can center the introduced yarn with the wind force, thereby improving the efficiency of external vertical air jet weft insertion in centering and guiding the yarn. Moreover, the rotating weft insertion cylinder 245 can further improve the stability of the yarn centering and guiding through the spiral wind force.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weft insertion adjustment device for an air-jet loom, comprising two sets of support brackets (3) for support, wherein each of the two sets of support brackets (3) is provided with a limiting rotating seat (8) for limiting, characterized in that: The guide screw (7) is provided in two sets, and both sets of the guide screw (7) are rotatably engaged with the inner end face of the limiting rotary seat (8). Synchronous pulleys (6) are provided at both ends of the guide screw (7). The two sets of synchronous pulleys (6) located on the same side are connected by a synchronous belt (5). A reduction motor (1) is provided on the outer end face of the limiting rotary seat (8) opposite to the guide screw (7). The weft insertion device (2) is provided in four sets. The four sets of weft insertion devices (2) are threadedly connected to the inner end faces of the two sets of support brackets (3) through the guide screw (7). Air guiding device (4), the air guiding device (4) is fixedly installed on the upper end face of the weft insertion device (2); The weft insertion device (2) includes a fixed bracket (22), the upper end face of which is provided with two sets of threaded slides (23) for guidance, and seven sets of limiting slots (21) are equally spaced on the inner end face of the fixed bracket (22), and a centering device (24) is rotatably engaged on the inner end face of the limiting slots (21). A servo motor (25) is provided on the lower end face of the fixed bracket (22) near the side, and a drive gear (26) is fixedly provided at the output end of the servo motor (25). The centering device (24) includes a weft insertion air cylinder (245) for support. The inner end face of the weft insertion air cylinder (245) is provided with six sets of spiral guide grooves (246) at equal intervals, and air jet holes (247) are provided at equal intervals on the inner end face of the weft insertion air cylinder (245). The upper end face of the weft insertion air cylinder (245) is provided with six sets of air guide branches (244) at equal intervals, and an air guide clamp (243) is fixedly provided on the upper end face of the six sets of air guide branches (244). A driven gear (242) is fixedly provided on the outer end face of the six sets of air guide branches (244), and an air guide groove (241) is provided at the center of the inner end face of the driven gear (242). The driving gear (26) meshes with the driven gear (242), and the air guide cylinder (243), air guide branch pipe (244), and weft insertion cylinder (245) are connected in a continuous manner.

2. The weft insertion adjustment device for an air-jet loom according to claim 1, characterized in that: The air guiding device (4) includes an air storage box (41). Seven sets of weft insertion air holes (42) are equidistantly opened on the inner end face of the air storage box (41). Two sets of air supply pipes (43) are provided on both sides of the air storage box (41). A sealing tube (46) is provided on the lower end face of the air storage box (41) directly opposite the weft insertion air hole (42). A sealing seat (44) is provided on the lower end face of the air storage box (41) directly opposite the sealing tube (46). A sealing groove (45) is opened on the lower end face of the air storage box (41) directly opposite the sealing seat (44).

3. The weft insertion adjustment device for an air-jet loom according to claim 2, characterized in that: The limiting groove (21) is adapted to the air guide tube (243), and the weft insertion tube (245) is adapted to the air guide tube (243) through the limiting groove (21) and thus rotated and locked inside the fixed seat (22).

4. The weft insertion adjustment device for an air-jet loom according to claim 3, characterized in that: The interior of the weft insertion air cylinder (245) is hollow, the spiral guide groove (246) is spirally arranged, and the air jet hole (247) is parallel to the spiral guide groove (246).

5. The weft insertion adjustment device for an air-jet loom according to claim 4, characterized in that: The sealing bracket (44) is sealed and rotated to engage with the air guide tube (243) through the sealing slot (45).

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