A weft insertion control structure applied to a rapier loom

Abstract

The application relates to the field of textile machinery, and discloses a weft insertion control structure applied to a rapier loom, which comprises a rack, a weft insertion device, an intelligent monitoring device and a driving device arranged on the rack, the weft insertion device comprises a group of main weft insertion components, the main weft insertion components comprise a first sword wheel, a first guide rail seat component and a first sword bar belt component, the first sword wheel is rotationally arranged on the rack, the first guide rail seat component comprises a first linear guide rail seat and a first curved guide rail seat, the first linear guide rail seat is arranged at the top of the rack, the first curved guide rail seat comprises a first horizontal guide part and a first oblique guide part which are connected with each other, the first horizontal guide part is arranged at the top of the rack and located below the first linear guide rail seat, and the first oblique guide part is arranged close to the first sword wheel, which is beneficial to improving the weft insertion efficiency of the equipment, prolonging the service life of the equipment, realizing intelligent monitoring during the operation of the equipment and improving the intelligent level of the equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of textile machinery, in particular to a weft insertion control structure applied to a rapier loom. BACKGROUND

[0002] With the rapid development of social economy, the rapier loom is the most widely used shuttleless loom. In addition to the characteristics of high speed, high automation and high efficiency of the shuttleless loom, the active weft insertion mode of the rapier loom has strong adaptability to various yarns, and can adapt to the weft insertion of various yarns. In addition, the rapier loom has obvious advantages in multi-color weft weaving, and can produce up to sixteen color weft yarns. With the replacement of shuttle looms by shuttleless looms, the rapier loom will become the main production machine for woven fabrics.

[0003] The existing weft insertion operation of the rapier loom needs to drive the weft insertion sword on the sword belt by rotating the sword guide wheel, which has the problem of low weft insertion efficiency. If the weft insertion efficiency needs to be improved, the moving speed of the sword guide wheel and the sword belt needs to be increased, which will increase the wear of the parts and reduce the service life of the equipment. At the same time, the sword belt is provided with a tooth block hole for engaging with the protruding gear teeth on the sword guide wheel. This structure will cause meshing failure problem after the parts are worn out, which will cause the sword guide wheel to be unable to drive the sword belt to move. However, the existing equipment lacks related fault monitoring and has low intelligence level, which causes the equipment to continue to run and causes loss. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art.

[0005] The present application provides a weft insertion control structure applied to a rapier loom, comprising a machine frame, a weft insertion device, an intelligent monitoring device and a driving device arranged on the machine frame, the weft insertion device comprising a group of main weft insertion components, the main weft insertion components comprising a first sword guide wheel, a first guide rail seat assembly and a first sword belt assembly.

[0006] The first sword guide wheel is rotatably arranged on the machine frame, the first guide rail seat assembly comprises a first linear guide rail seat and a first curved guide rail seat, the first linear guide rail seat is arranged on the top of the machine frame, the first curved guide rail seat comprises a first horizontal guide portion and a first inclined guide portion connected with each other, the first horizontal guide portion is arranged on the top of the machine frame and below the first linear guide rail seat, and the first inclined guide portion is arranged close to the first sword guide wheel.

[0007] The first rapier belt assembly comprises a first rigid rapier belt and a first flexible rapier belt arranged in a vertical manner, the first rigid rapier belt is slidingly arranged on the first linear guide base and extends from the first linear guide base to engage with the upper part of the first rapier wheel, and the first flexible rapier belt is slidingly arranged on the first horizontal guide part and the first oblique guide part and engages with the lower part of the first rapier wheel.

[0008] The intelligent monitoring device comprises a rotating speed sensor, a first position sensor and a second position sensor, the rotating speed sensor is arranged on the first rapier wheel, the first position sensor is arranged on the end of the first linear guide base away from the first rapier wheel, and the second position sensor is arranged on the end of the first horizontal guide part away from the first rapier wheel.

[0009] The driving device is in driving connection with the first rapier wheel to drive the first rapier wheel to rotate, so as to drive the first rigid rapier belt to move in the first linear guide base and the first flexible rapier belt to move in the first horizontal guide part in opposite directions.

[0010] Therefore, under the driving action of the driving motor, the first rapier wheel drives the first rigid rapier belt to slidingly move along the first linear guide base to perform a weft insertion action by positive rotation, and when the first rapier wheel reversely rotates, the first rigid rapier belt is driven to slidingly move along the first linear guide base to complete a reset movement, and at the same time, the first flexible rapier belt is driven to slidingly move along the first horizontal guide part and the first oblique guide part to perform a weft insertion action, so that at least two weft insertion actions can be performed when the first rapier wheel performs one positive and reverse rotation, and in the equipment operation, the rotating speed sensor, the first position sensor and the first flexible rapier belt respectively perform intelligent monitoring on the first rapier wheel, the first rigid rapier belt and the first flexible rapier belt, and when a fault occurs, the equipment can be immediately stopped and feedback, which is beneficial to improve the weft insertion efficiency of the equipment, under the same weft insertion times, the moving speed of the first rapier wheel, the first rigid rapier and the first flexible rapier can be reduced, the part wear is reduced to improve the service life of the equipment, and the intelligent monitoring during the equipment operation is realized to improve the intelligent level of the equipment.

[0011] In one embodiment, the first horizontal guide part and the inner part of the first oblique guide part are provided with a first guide groove, the first flexible rapier belt is located in the first guide groove, the first guide groove is provided with a first clearance groove at the top, the inner wall of the first guide groove and the first flexible rapier belt are provided with an elastic ball clamping structure, the elastic ball clamping structure is used for elastically clamping the top surface, the left side surface, the right side surface and the bottom surface of the first flexible rapier belt, and the gear teeth of the first rapier wheel pass through the first clearance groove to extend into the first guide groove and engage with the first flexible rapier belt.

[0012] In one embodiment, the elastic ball clamping structure comprises a mounting column provided on the inner wall of the first guide groove, the mounting column is provided with a ball body, a push plate and a spring inside, the mounting column is provided with a limiting opening near the end of the first flexible rapier belt, one end of the spring is provided on the inner wall of the first guide groove, the other end of the spring is connected with the push plate, the push plate abuts against the ball body to make the ball surface of the ball body abut against the first flexible rapier belt.

[0013] In one embodiment, the weft insertion device further comprises a plurality of auxiliary weft insertion assemblies, the auxiliary weft insertion assembly comprises a second rapier wheel, a second guide rail seat assembly and a second rapier belt assembly, the second rapier wheel is coaxially arranged on the first rapier wheel and is provided with a spacing between the first oblique guide part, the second guide rail seat assembly comprises a second linear guide rail seat and a second curved guide rail seat, the second linear guide rail seat is arranged on the top of the rack, the second curved guide rail seat comprises a third horizontal guide part and a second oblique guide part connected with each other, the third horizontal guide part is arranged on the top of the rack and is located below the second linear guide rail seat, the second oblique guide part is arranged close to the second rapier wheel and is provided with a spacing between the first rapier wheel and the first oblique guide part; the second rapier belt assembly comprises a second rigid rapier belt and a second flexible rapier belt arranged in an up-down manner, the second rigid rapier belt is slidingly arranged on the second linear guide rail seat and extends from the second linear guide rail seat to engage with the upper part of the second rapier wheel, and the second flexible rapier belt is slidingly arranged on the third horizontal guide part and the second oblique guide part and engages with the lower part of the second rapier wheel.

[0014] In one embodiment, the third horizontal guide part is provided with a second guide groove inside the second inclined guide part, the second flexible rapier belt is located in the second guide groove, the second guide groove is provided with a second clearance groove at the top, and the inner wall of the second guide groove and the second flexible rapier belt are provided with the elastic ball clamping structure for elastically clamping the top surface, the left side surface, the right side surface and the bottom surface of the second flexible rapier belt, and the gear teeth of the second rapier wheel pass through the second clearance groove to extend into the second guide groove and engage with the second flexible rapier belt.

[0015] In one embodiment, the first curved guide rail seat further comprises a second horizontal guide part connected with the first inclined guide part, and the second horizontal guide part is located below the first rapier wheel; and the second curved guide rail seat further comprises a fourth horizontal guide part connected with the second inclined guide part, and the fourth horizontal guide part is located below the second rapier wheel.

[0016] In one embodiment, the diameter of the second rapier wheel is smaller than the diameter of the first rapier wheel.

[0017] In one embodiment, the driving device comprises a driving motor, a primary main shaft transmission assembly and a secondary weft insertion transmission assembly arranged on the rack, the driving motor is in transmission connection with the first rapier wheel, the primary main shaft transmission assembly comprises a main driving shaft rotatably connected to the rack, the main driving shaft is provided with a first conjugate cam and a second conjugate cam along the axial direction thereof, the secondary weft insertion transmission assembly comprises a first weft insertion rotating shaft and a second weft insertion rotating shaft rotatably connected to the rack, the first weft insertion rotating shaft is provided with a first weft insertion roller for transmission cooperation with the first conjugate cam and a second weft insertion roller for transmission cooperation with the second conjugate cam along the axial direction thereof, a connecting rod driving assembly is arranged between the first weft insertion rotating shaft and the second weft insertion rotating shaft, and the second weft insertion rotating shaft is in transmission connection with the first rapier wheel through a gear transmission assembly.

[0018] In one embodiment, the gear transmission assembly comprises a gear rotating shaft arranged on the rack and a rapier wheel shaft connected with the first rapier wheel, the second weft insertion rotating shaft is provided with an arc-shaped gear, the gear rotating shaft is provided with a first gear and a first bevel gear, the first gear is in meshing with the arc-shaped gear, and the rapier wheel shaft is provided with a second bevel gear in meshing with the first bevel gear.

[0019] In one embodiment, the rack comprises a support plate and a mounting plate arranged on the support plate, a top of the support plate is provided with a groove, the first linear guide rail seat is arranged on the groove, and the main driving shaft, the first weft insertion rotating shaft, the second weft insertion rotating shaft and the gear rotating shaft are arranged on the mounting plate.

[0020] The application provides a weft insertion control structure applied to a rapier loom, and at least has the following beneficial effects: under the driving effect of a driving motor, the first rapier wheel drives the first rigid rapier ribbon to slide along the first linear guide rail seat to perform a weft insertion action through forward rotation; when the first rapier wheel reversely rotates, the first rigid rapier ribbon is driven to slide along the first linear guide rail seat to complete a reset movement, at the same time, the first flexible rapier ribbon is driven to slide along the first horizontal guide part and the first oblique guide part to perform a weft insertion action, so that at least two weft insertion actions can be performed when the first rapier wheel performs one forward and reverse rotation, and in the equipment operation, the first rapier wheel, the first rigid rapier ribbon and the first flexible rapier ribbon are intelligently monitored by the rotating speed sensor, the first position sensor and the first flexible rapier ribbon respectively, the equipment can be immediately stopped and feedback when a fault occurs, which is beneficial to improving the weft insertion efficiency of the equipment, under the condition of the same weft insertion times, the moving speed of the first rapier wheel, the first rigid rapier and the first flexible rapier can be reduced, the component wear is reduced to improve the service life of the equipment, and the intelligent monitoring in the equipment operation process is realized, and the intelligent level of the equipment is improved.

[0021] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above and / or additional aspects and advantages of the application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings in which:

[0023] Figure 1 FIG. 1 is a perspective view of the weft insertion control structure applied to the rapier loom according to the present application;

[0024] Figure 2 is Figure 1 FIG. 6 is a partial enlarged view of A in FIG. 5;

[0025] Figure 3 FIG. 7 is a schematic view of the connection relationship among the first rapier wheel, the first rigid rapier ribbon and the first flexible rapier ribbon in the weft insertion control structure applied to the rapier loom according to the present application;

[0026] Figure 4 FIG. 8 is an internal structure view of the first horizontal guide part in the weft insertion control structure applied to the rapier loom according to the present application.

[0027] Figure 5 It is the assembly structure schematic view of the first sword wheel, the second sword wheel and the guide part in the weft insertion control structure applied to the gilling machine of the application;

[0028] Figure 6 It is the first internal structure view when the weft insertion control structure applied to the gilling machine of the application is used;

[0029] Figure 7 It is the second internal structure view when the weft insertion control structure applied to the gilling machine of the application is used.

[0030] In the drawing: 100- rack; 200- first sword wheel; 300- driving motor; 4- first linear guide rail seat; 5- second horizontal guide part; 6- first oblique guide part; 7- first rigid sword rod belt; 8- first flexible sword rod belt; 9- first guide groove; 10- mounting column; 11- ball body; 12- push plate; 13- spring; 14- through hole; 15- second sword wheel; 16- second linear guide rail seat; 17- fourth horizontal guide part; 18- second oblique guide part; 19- second rigid sword rod belt; 20- second flexible sword rod belt; 21- main driving shaft; 22- first conjugate cam; 23- second conjugate cam; 24- first weft insertion rotating shaft; 25- second weft insertion rotating shaft; 26- first weft insertion roller; 37- second weft insertion roller; 27- gear rotating shaft; 28- sword wheel shaft; 29- arc gear; 30- first gear; 31- first bevel gear; 32- second bevel gear; 1001- support plate; 1002- mounting plate; 35- groove; 36- fixed plate; 500- first position sensor; 38- second position sensor; 39- rotating speed sensor; 400- first emptying groove. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation of the present application.

[0032] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as a limitation of the present application.

[0033] In the description of the present application, the words such as arrangement, installation, connection and the like should be understood broadly unless otherwise explicitly limited, and the skilled in the art can determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0034] The application will be described below in conjunction with Figures 1 to 7 The embodiments of the present application are described.

[0035] As Figures 1 to 7 shown, the present embodiment relates to a weft insertion control structure applied to a rapier loom, which comprises a rack 100, a weft insertion device, an intelligent monitoring device and a driving device, the weft insertion device, the intelligent monitoring device and the driving device being arranged on the rack 100, the weft insertion device comprising a group of main weft insertion assemblies, the main weft insertion assembly comprising a first lead-in rapier 200, a first guide rail seat assembly and a first rapier belt assembly.

[0036] Among them, the first lead-in rapier 200 is rotationally arranged on the rack 100, the first guide rail seat assembly comprises a first linear guide rail seat 4 and a first curved guide rail seat, the first linear guide rail seat 4 is arranged on the top of the rack 100, the first curved guide rail seat comprises a first horizontal guide part and a first inclined guide part 6 connected with each other, the first horizontal guide part is arranged on the top of the rack 100, the first horizontal guide part is located below the first linear guide rail seat 4, and the first inclined guide part 6 is arranged close to the first lead-in rapier 200.

[0037] Among them, the first rapier belt assembly comprises a first rigid rapier belt 7 and a first flexible rapier belt 8, the first rigid rapier belt 7 and the first flexible rapier belt 8 are arranged above and below, the first rigid rapier belt 7 is slidingly arranged on the first linear guide rail seat 4, and the first rigid rapier belt 7 extends from the first linear guide rail seat 4 to engage with the upper part of the first lead-in rapier 200, the first flexible rapier belt 8 is slidingly arranged on the first horizontal guide part and the first inclined guide part 6, and the first flexible rapier belt 8 engages with the lower part of the first lead-in rapier 200. It should be noted that the rapier belt is provided with a tooth block hole, which is used to engage with the protruding gear teeth on the first lead-in rapier 200.

[0038] Among them, the intelligent monitoring device comprises a rotating speed sensor 39, a first position sensor 500 and a second position sensor 38, the rotating speed sensor 39 is arranged on the first lead-in rapier 200, the first position sensor 500 is arranged on the end of the first linear guide rail seat 4 away from the first lead-in rapier 200, and the second position sensor 38 is arranged on the end of the first horizontal guide part away from the first lead-in rapier 200;

[0039] The driving device is in transmission connection with the first lead sword wheel 200, drives the first lead sword wheel 200 to rotate, drives the first rigid sword rod belt 7 to move in the first linear guide seat 4 and the first flexible sword rod belt 8 to move in the first horizontal guide part in the opposite direction, that is, the movement direction of the first rigid sword rod belt 7 in the first linear guide seat 4 is opposite to the movement direction of the first flexible sword rod belt 8 in the first horizontal guide part.

[0040] On the basis of the above structure, during the weft insertion operation, the driving motor 300 drives the first lead sword wheel 200 to rotate forward, the first rigid sword rod belt 7 slides along the guide of the first linear guide seat 4 under the driving action of the driving motor 300, and moves to the shed of the sword rod loom to perform a weft insertion operation; then the driving motor 300 drives the first lead sword wheel 200 to rotate reversely, so that the first rigid sword rod belt 7 is reset for the next weft insertion operation, and at the same time, the first flexible sword rod belt 8 slides along the guide of the first horizontal guide part, the first inclined guide part 6 and the second horizontal guide part 5 under the reverse driving action of the driving motor 300, and moves to the shed of the sword rod loom to perform a weft insertion operation.

[0041] It should be noted that by pre-setting, the first rigid sword rod belt 7 is reset in place, and the first flexible sword rod belt 8 is inserted in place, so that the first rigid sword rod and the first flexible sword rod can cooperate with each other to perform continuous weft insertion operation.

[0042] The rotation speed sensor 39 is installed on the first lead sword wheel 200, and is used to monitor the rotation speed of the first lead sword wheel 200 in real time, and has the effect of ensuring the accuracy and stability of the control of the weft insertion process. The rotation speed sensor 39 can feed back the rotation speed data of the first lead sword wheel 200 to the computer system in real time, and the system can judge whether the current rotation speed is appropriate according to the preset rotation speed range, adjust the output of the driving motor, and ensure that the lead sword wheel operates at the best speed. At the same time, when the rotation speed sensor detects that the rotation speed of the first lead sword wheel is abnormal (such as sudden acceleration, deceleration or stop), it will immediately send a warning signal to the computer system, so as to discover and handle potential mechanical faults in time, and prevent shutdown or damage caused by faults. In addition, by monitoring the rotation speed, the system can calculate the energy consumption data of the driving motor under different working conditions, and based on the data, the system can automatically adjust the operating parameters of the motor to minimize energy consumption, thereby improving the overall energy efficiency of the loom.

[0043] The first position sensor 500 is installed on the moving path of the first rigid sword lever belt 7 to detect whether it moves to the position. When the first rigid sword lever belt 7 completes a weft insertion action, the first position sensor 500 will immediately detect the change of its position and send a signal to the computer system. According to the signal, the system can accurately control the timing of the reverse rotation of the driving motor, ensuring that the first rigid sword lever belt can be accurately reset. If the first position sensor 500 does not detect the arrival signal of the first rigid sword lever belt within the preset time, it will send an abnormal alarm to the system. This helps to discover and handle the fault of the sword lever belt jamming, breaking and the like in time, and ensures the continuity of the weft insertion process. In addition, by recording the triggering times and time intervals of the first position sensor, the moving speed and acceleration of the first rigid sword lever belt can be analyzed, so as to optimize the weft insertion process and improve the efficiency of the sword lever loom by using these data.

[0044] The second position sensor 38 is installed on the moving path of the first flexible sword lever belt 8 to detect whether it moves to the position. By real-time monitoring the arrival position of the first flexible sword lever belt 8 through the second position sensor 38, it can be ensured that the movement of the first flexible sword lever belt 8 is synchronized with that of the first rigid sword lever belt 7, so that when the first rigid sword lever belt resets to the position, the first flexible sword lever belt just completes the weft insertion action and is ready to reset. This synchronous control is essential for realizing continuous weft insertion operation.

[0045] When the device is working, the cooperation relationship of the rotation speed sensor 39, the first position sensor 500 and the second position sensor 38 is as follows: the rotation speed of the first sword wheel 200 is obtained by the computer system in real time through the rotation speed sensor 39, and it is detected by the first position sensor 500 whether the first rigid sword lever belt 7 moves to the position after completing the preset number of rotation, and it is detected by the second position sensor 38 whether the first flexible sword lever belt 8 moves to the position. In this way, it can be detected at any time whether the device is working normally, realizing intelligent monitoring of the first sword wheel 200, the first rigid sword lever belt 7 and the first flexible sword lever belt 8, and jointly ensuring the accuracy, stability and continuity of the weft insertion process, providing protection for the efficient operation of the sword lever loom.

[0046] Therefore, under the driving effect of the driving motor 300, the first lead sword wheel 200 rotates forward to drive the first rigid sword rod belt 7 to slide along the guide of the first linear guide rail seat 4 to perform a leading weft action, and when the first lead sword wheel 200 rotates reversely, the first rigid sword rod belt 7 slides along the guide of the first linear guide rail seat 4 to complete a reset movement, and at the same time, the first flexible sword rod belt 8 slides along the guide of the first horizontal guide part and the first inclined guide part 6 to perform a leading weft action, so that at least two leading weft actions can be performed when the first lead sword wheel 200 rotates forward and reversely once, and during the operation of the equipment, the first lead sword wheel 200, the first rigid sword rod belt 7 and the first flexible sword rod belt 8 are intelligently monitored by the rotation speed sensor 39, the first position sensor 500 and the first flexible sword rod belt 8 respectively, and the equipment can be stopped immediately and feedback when a fault occurs, which is beneficial to improve the leading weft efficiency of the equipment, and under the condition of the same leading weft times, the moving speed of the first lead sword wheel 200, the first rigid sword rod and the first flexible sword rod can be reduced, the part wear can be reduced to prolong the service life of the equipment, and the intelligent monitoring during the operation of the equipment can be realized to improve the intelligent level of the equipment.

[0047] The first horizontal guide part and the first inclined guide part 6 are internally provided with a first guide groove 9, the first flexible sword rod belt 8 is located in the first guide groove 9, the first flexible sword rod belt 8 has a through hole 14, a top surface, a left side surface, a right side surface and a bottom surface, the top of the first guide groove 9 is provided with a first empty slot 400, and a elastic ball clamping structure is arranged between the inner wall of the first guide groove 9 and the first flexible sword rod belt 8, that is, the clamping structure is a ball clamping structure, and the friction force of rolling friction is smaller than that of direct friction, and the clamping structure is not easy to be stuck. The elastic ball clamping structure is used for elastically clamping the top surface, the left side surface, the right side surface and the bottom surface of the first flexible sword rod belt 8, and the gear teeth of the first lead sword wheel 200 pass through the first empty slot 400 to extend into the first guide groove 9 and engage with the first flexible sword rod belt 8. Due to the flexible characteristic of the first flexible sword rod belt 8, if the first curved guide rail seat is not arranged, the first flexible sword rod belt 8 cannot move along the predetermined route, so the first curved guide rail seat must be arranged to provide guidance for the first flexible sword rod belt 8, but the movement route of the first flexible sword rod belt 8 cannot be a straight line, otherwise the movement of the first flexible sword rod belt 8 will interfere with the first rigid sword rod belt 7, so the first curved guide rail seat must be arranged as a curved guide structure. Compared with the straight line guide structure, the curved guide structure has the problems of long transmission distance and large friction, and since the lubrication method of adding lubricating substances cannot be used, the first flexible sword rod belt 8 is easy to be stuck during guidance, and the reliability is low.

[0048] Therefore, by adopting the elastic ball clamping structure to elastically clamp the top surface, the left side surface, the right side surface and the bottom surface of the first flexible sword rack belt 8, the elastic ball clamping structure is avoided from being directly clamped into the through hole 14 of the first flexible sword rack belt 8, the fixed clamping of the first flexible sword rack belt 8 is realized, and meanwhile, the friction between the first curved guide rail seat and the first flexible sword rack belt 8 is effectively reduced, and the situation that the first flexible sword rack belt 8 is stuck due to excessive friction in the curved first curved guide rail seat is avoided.

[0049] Specifically, the elastic ball clamping structure comprises a mounting column 10 arranged on the inner wall of the first guide groove 9, the inside of the mounting column 10 is provided with a ball body 11, a push plate 12 and a spring 13, the mounting column 10 is provided with a limiting opening close to the end of the first flexible sword rack belt 8, one end of the spring 13 is arranged on the inner wall of the first guide groove 9, the other end of the spring 13 is connected with the push plate 12, the push plate 12 abuts against the ball body 11 to make the ball surface of the ball body 11 extend out of the limiting opening and abut against the first flexible sword rack belt 8, and this structure has the advantages of simple structure, stable and reliable, and low failure rate.

[0050] The weft insertion device at least further comprises a plurality of auxiliary weft insertion assemblies, the auxiliary weft insertion assembly comprises a second sword wheel 15, a second guide rail seat assembly and a second sword rack belt assembly, the second sword wheel 15 is connected to the first sword wheel 200 and coaxially arranged with the first sword wheel 200, a spacing is arranged between the second sword wheel 15 and the first inclined guide part 6, the second guide rail seat assembly comprises a second linear guide rail seat 16 and a second curved guide rail seat, the second linear guide rail seat 16 is arranged on the top of the rack 100, the second curved guide rail seat comprises a third horizontal guide part and a second inclined guide part 18 which are connected to each other, the third horizontal guide part is arranged on the top of the rack 100 and below the second linear guide rail seat 16, the second inclined guide part 18 is arranged close to the second sword wheel 15, and a spacing is arranged between the second inclined guide part 18 and the first sword wheel 200 and the first inclined guide part 6; the second sword rack belt assembly comprises a second rigid sword rack belt 19 and a second flexible sword rack belt 20 which are arranged in an up-down manner, the second rigid sword rack belt 19 is slidingly arranged on the second linear guide rail seat 16 and extends out of the second linear guide rail seat 16 to engage with the upper part of the second sword wheel 15, and the second flexible sword rack belt 20 is slidingly arranged on the third horizontal guide part and the second inclined guide part 18 and engages with the lower part of the second sword wheel 15. That is, the sword wheel can be a multi-tooth structure, the second sword wheel 15 can be driven to rotate by driving the first sword wheel 200, that is, the first rigid sword rack belt 7, the first flexible sword rack belt 8, the second rigid sword rack belt 19 and the second flexible sword rack belt 20 can be driven to move by driving the first sword wheel 200, so that at least four weft insertion actions can be performed when the first sword wheel 200 is rotated in a positive direction only once, thereby further improving the weft insertion efficiency.

[0051] The third horizontal guide part is provided with a second guide groove inside the second inclined guide part 18, and the second flexible rapier belt 20 is located in the second guide groove. The second flexible rapier belt 20 has a through hole, a top surface, a left side surface, a right side surface and a bottom surface. The top of the second guide groove is provided with a second emptying groove. An elastic ball clamping structure is arranged between the inner wall of the second guide groove and the second flexible rapier belt 20. The elastic ball clamping structure is used for elastically clamping the top surface, the left side surface, the right side surface and the bottom surface of the second flexible rapier belt 20. The gear teeth of the second rapier wheel 15 pass through the second emptying groove to extend into the second guide groove and engage with the second flexible rapier. That is, the second curved guide rail seat also adopts the elastic ball clamping structure.

[0052] The first curved guide rail seat further comprises a second horizontal guide part 5 connected with the first inclined guide part 6, and the second horizontal guide part 5 is located below the first rapier wheel 200. The second curved guide rail seat further comprises a fourth horizontal guide part 17 connected with the second inclined guide part 18, and the fourth horizontal guide part 17 is located below the second rapier wheel 15. In this way, by arranging the second horizontal guide part 5 and the fourth horizontal guide part 17, the movement direction of the first flexible rapier belt 8 and the second flexible rapier belt 20 is changed, so that the ground does not interfere with the movement of the first flexible rapier belt 8 and the second flexible rapier belt 20, thereby the length of the first flexible rapier belt 8 and the second flexible rapier belt 20 can be extended as needed.

[0053] The diameter of the second rapier wheel 15 is the same as or smaller than that of the first rapier wheel 200, so that different transmission rates can be achieved.

[0054] The driving device comprises a driving motor 300, a primary main shaft transmission assembly and a secondary weft insertion transmission assembly arranged on the rack 100. The driving motor 300 is in transmission connection with the first rapier wheel 200. The primary main shaft transmission assembly comprises a main driving shaft 21 rotatably connected to the rack 100. The main driving shaft 21 is provided with a first conjugate cam 22 and a second conjugate cam 23 along the axial direction thereof. The secondary weft insertion transmission assembly comprises a first weft insertion rotating shaft 24 and a second weft insertion rotating shaft 25 rotatably connected to the rack 100. The first weft insertion rotating shaft 24 is provided with a first weft insertion roller 26 for transmission cooperation with the first conjugate cam 22 and a second weft insertion roller 37 for transmission cooperation with the second conjugate cam 23 along the axial direction thereof. A connecting rod driving assembly is arranged between the first weft insertion rotating shaft 24 and the second weft insertion rotating shaft 25. The second weft insertion rotating shaft 25 is in transmission connection with the first rapier wheel 200 through a gear transmission assembly. That is, the weft insertion control structure adopts a conjugate cam transmission structure. The conjugate cam has high transmission precision and small volume, which is conducive to reducing the volume of the transmission structure.

[0055] The gear transmission assembly comprises a gear rotating shaft 27 arranged on the frame 100 and a sword wheel shaft 28 connected with the first weft insertion wheel 200, the second weft insertion rotating shaft 25 is provided with an arc-shaped gear 29, the gear rotating shaft 27 is provided with a first gear 30 and a first bevel gear 31, the first gear 30 is engaged with the arc-shaped gear 29, the sword wheel shaft 28 is provided with a second bevel gear 32 engaged with the first bevel gear 31, thereby effectively improving the overall carrying capacity of the transmission structure by the high carrying capacity of the arc-shaped gear 29.

[0056] The frame 100 comprises a support plate 1001 and a mounting plate 1002 arranged on the support plate 1001, the top of the support plate 1001 is provided with a groove 35, the first linear guide rail seat 4 is arranged on the groove 35, the main driving shaft 21, the first weft insertion rotating shaft 24, the second weft insertion rotating shaft 25 and the gear rotating shaft 27 are arranged on the mounting plate 1002, so that during installation, the main driving shaft 21, the first weft insertion rotating shaft 24, the second weft insertion rotating shaft 25 and the gear rotating shaft 27 are installed on the mounting plate 1002 first, and then the mounting plate 1002 is installed on the support plate 1001, thereby realizing the overall assembly, and the installation is convenient and simple.

[0057] The first linear guide rail seat 4 is provided with a fixed plate 36, and the first weft insertion wheel 200 is rotatably connected to the fixed plate 36, thereby facilitating the installation of the first weft insertion wheel 200.

[0058] The preferred embodiments of the application are specifically described above, but the application is not limited to the described embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the application.

Claims

1. A weft insertion control structure for a rapier loom, characterized in that: The machine comprises a frame and a weft insertion device, an intelligent monitoring device and a driving device arranged on the frame, wherein the weft insertion device comprises a set of main weft insertion components, and the main weft insertion components comprise a first rapier wheel, a first guide rail seat assembly and a first rapier belt assembly; The first sword-drawing wheel is rotatably arranged on the frame, the first guide rail seat assembly includes a first linear guide rail seat and a first curved guide rail seat, the first linear guide rail seat is arranged on the top of the frame, the first curved guide rail seat includes a first horizontal guide portion and a first oblique guide portion connected to each other, the first horizontal guide portion is arranged on the top of the frame and below the first linear guide rail seat, and the first oblique guide portion is arranged close to the first sword-drawing wheel; The first rapier band assembly includes a first rigid rapier band and a first flexible rapier band arranged above and below. The first rigid rapier band is slidably arranged on the first linear guide seat and extends from the first linear guide seat to engage with the upper portion of the first rapier introduction wheel. The first flexible rapier band is slidably arranged on the first horizontal guide portion and the first oblique guide portion and engages with the lower portion of the first rapier introduction wheel. The intelligent monitoring device includes a rotation speed sensor, a first position sensor, and a second position sensor. The rotation speed sensor is provided on the first rapier wheel. The first position sensor is provided on the end of the first linear guide rail away from the first rapier wheel. The second position sensor is provided on the end of the first horizontal guide portion away from the first rapier wheel. The driving device is in transmission connection with the first rapier wheel to drive the first rapier wheel to rotate, so as to drive the first rigid rapier belt to move in opposite directions in the first linear guide seat and the first flexible rapier belt to move in the first horizontal guide portion.

2. The weft insertion control structure for a rapier loom according to claim 1, characterized in that: A first guide groove is provided inside the first horizontal guide portion and the first oblique guide portion, the first flexible rapier band is located in the first guide groove, the first flexible rapier band has a through hole, a top surface, a left surface, a right surface and a bottom surface, a first air avoidance groove is provided at the top of the first guide groove, an elastic ball clamping structure is provided between the inner wall of the first guide groove and the first flexible rapier band, the elastic ball clamping structure is used to elastically clamp the top surface, left surface, right surface and bottom surface of the first flexible rapier band, the teeth of the first sword-guiding wheel pass through the first air avoidance groove to extend into the first guide groove and engage with the first flexible rapier band.

3. The weft insertion control structure for a rapier loom according to claim 2, characterized in that: The elastic ball clamping structure includes a mounting post arranged on the inner wall of the first guide groove, a ball body, a push plate and a spring are arranged inside the mounting post, a limiting opening is provided on the end of the mounting post close to the first flexible rapier band, one end of the spring is arranged on the inner wall of the first guide groove, and the other end of the spring is connected to the push plate, and the push plate abuts against the ball body so that the ball surface of the ball body extends out from the limiting opening and abuts against the first flexible rapier band.

4. The weft insertion control structure for a rapier loom according to claim 2, characterized in that: The weft insertion device further includes at least one auxiliary weft insertion assembly, the auxiliary weft insertion assembly including a second sword introduction wheel, a second guide rail seat assembly and a second rapier belt assembly, the second sword introduction wheel is coaxially arranged on the first sword introduction wheel and a distance is set between the first oblique guide portion, the second guide rail seat assembly includes a second linear guide rail seat and a second curved guide rail seat, the second linear guide rail seat is arranged at the top of the frame, the second curved guide rail seat includes a third horizontal guide portion and a second oblique guide portion connected to each other, the third horizontal guide portion is arranged at the top of the frame and is located at the second linear guide portion Below the guide rail seat, the second oblique guide portion is arranged close to the second sword-drawing wheel, and a gap is set between the second oblique guide portion and the first sword-drawing wheel and the first oblique guide portion; the second rapier belt assembly includes a second rigid rapier belt and a second flexible rapier belt arranged up and down, the second rigid rapier belt is slidably arranged on the second linear guide rail seat and extends from the second linear guide rail seat to engage with the upper part of the second sword-drawing wheel, and the second flexible rapier belt is slidably arranged on the third horizontal guide portion and the second oblique guide portion and engages with the lower part of the second sword-drawing wheel.

5. The weft insertion control structure for a rapier loom according to claim 4, characterized in that: A second guide groove is provided inside the third horizontal guide portion and the second oblique guide portion, the second flexible rapier band is located in the second guide groove, the second flexible rapier band has a through hole, a top surface, a left surface, a right surface and a bottom surface, a second air avoidance groove is provided at the top of the second guide groove, the elastic ball clamping structure is provided between the inner wall of the second guide groove and the second flexible rapier band, the elastic ball clamping structure is used to elastically clamp the top surface, left surface, right surface and bottom surface of the second flexible rapier band, the teeth of the second sword drawing wheel pass through the second air avoidance groove to extend into the second guide groove and engage with the second flexible rapier band.

6. The weft insertion control structure for a rapier loom according to claim 4, characterized in that: The first curved guide rail seat also includes a second horizontal guide portion connected to the first oblique guide portion, and the second horizontal guide portion is located below the first sword-guiding wheel; the second curved guide rail seat also includes a fourth horizontal guide portion connected to the second oblique guide portion, and the fourth horizontal guide portion is located below the second sword-guiding wheel.

7. The weft insertion control structure for a rapier loom according to claim 4, characterized in that: The diameter of the second sword introducing wheel is smaller than the diameter of the first sword introducing wheel.

8. The weft insertion control structure for a rapier loom according to claim 1, characterized in that: The driving device includes a driving motor, a primary main shaft transmission assembly and a secondary weft insertion transmission assembly arranged on the frame, the driving motor is connected to the first sword introduction wheel, the primary main shaft transmission assembly includes a main driving shaft rotatably connected to the frame, a first conjugate cam and a second conjugate cam are arranged on the main driving shaft along its axial direction, the secondary weft insertion transmission assembly includes a first weft insertion shaft and a second weft insertion shaft rotatably connected to the frame, a first weft insertion roller for cooperating with the first conjugate cam transmission and a second weft insertion roller for cooperating with the second conjugate cam transmission are arranged on the first weft insertion shaft along its axial direction, a connecting rod driving assembly is arranged between the first weft insertion shaft and the second weft insertion shaft, and the second weft insertion shaft is connected to the first sword introduction wheel through a gear transmission assembly.

9. The weft insertion control structure for a rapier loom according to claim 8, characterized in that: The gear transmission assembly includes a gear shaft arranged on the frame and a sword wheel shaft connected to the first sword wheel, an arc gear is arranged on the second weft insertion shaft, a first gear and a first bevel gear are arranged on the gear shaft, the first gear is meshed with the arc gear, and a second bevel gear is arranged on the sword wheel shaft and meshed with the first bevel gear.

10. The weft insertion control structure for a rapier loom according to claim 9, characterized in that: The frame includes a support plate and a mounting plate arranged on the support plate, a groove is provided on the top of the support plate, the first linear guide seat is provided on the groove, and the main drive shaft, the first weft insertion shaft, the second weft insertion shaft and the gear shaft are all provided on the mounting plate.

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