Weft insertion control structure applied to rapier loom

Abstract

The invention relates to the field of textile machinery, and discloses a weft insertion control structure applied to a rapier loom, which comprises a rack, and a weft insertion device, an intelligent monitoring device and a driving device which are arranged on the rack, the main weft insertion assembly comprises a first rapier guide wheel, a first guide rail seat assembly and a first rapier belt assembly; the first rapier guiding wheel is rotationally arranged on the rack, the first guide rail base assembly comprises a first linear guide rail base and a first curve guide rail base, the first linear guide rail base is arranged at the top of the rack, and the first curve guide rail base comprises a first horizontal guide part and a first inclined 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 base, and the first inclined guide part is arranged close to the first rapier guide wheel, so that the weft insertion efficiency of the equipment is improved, the service life of the equipment is prolonged, intelligent monitoring in the operation process of the equipment is achieved, and the intelligent level of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the field of textile machinery, and particularly to a weft insertion control structure applied to a rapier loom. Background Art

[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 degree, and high-efficiency production of shuttleless looms, its positive weft insertion method has strong variety adaptability and can adapt to the weft insertion of various yarns. Moreover, the rapier loom also has obvious advantages in multi-color weft weaving and can produce figured fabrics with up to sixteen color wefts. 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 rapier belt and the weft sword on the rapier belt to move by the rotation of the rapier wheel, resulting in the problem of low weft insertion efficiency. For example, if the weft insertion efficiency needs to be improved, it is necessary to increase the moving speed of the rapier wheel and the rapier belt, which will increase the wear of components and reduce the service life of the equipment. At the same time, tooth block engagement holes are provided on the rapier belt, and the tooth block engagement holes are used to engage with the protruding teeth on the rapier wheel. This structure will have an engagement failure problem after the components are worn, resulting in the rapier wheel being unable to drive the rapier belt to move. However, the existing equipment lacks relevant fault monitoring and has a low level of intelligence, resulting in the equipment still running and causing losses. Summary of the Invention

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

[0005] The present invention provides a weft insertion control structure applied to a rapier loom, including a frame and a weft insertion device, an intelligent monitoring device, and a driving device provided on the frame. The weft insertion device includes a set of main weft insertion components, and the main weft insertion components include a first rapier wheel, a first guide rail seat assembly, and a first rapier belt assembly.

[0006] The first rapier wheel is rotatably provided 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 provided on the top of the frame. The first curved guide rail seat includes a first horizontal guiding portion and a first inclined guiding portion connected to each other. The first horizontal guiding portion is provided on the top of the frame and is located below the first linear guide rail seat. The first inclined guiding portion is arranged close to the first rapier wheel.

[0007] The first rapier belt assembly includes a first rigid rapier belt and a first flexible rapier belt arranged vertically. The first rigid rapier belt is slidably arranged on the first linear guide rail seat and extends from the first linear guide rail seat to engage with the upper part of the first rapier wheel. The first flexible rapier belt is slidably arranged on the first horizontal guiding part and the first inclined guiding part and engages with the lower part of the first rapier wheel.

[0008] The intelligent monitoring device includes a rotational speed sensor, a first position sensor, and a second position sensor. The rotational speed sensor is arranged on the first rapier wheel. The first position sensor is arranged at the end of the first linear guide rail seat away from the first rapier wheel. The second position sensor is arranged at the end of the first horizontal guiding part away from the first rapier wheel.

[0009] 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 the first linear guide rail seat and the first flexible rapier belt to move in the first horizontal guiding part in opposite directions.

[0010] Thus, under the driving action of the driving motor of the present invention, the first rapier wheel drives the first rigid rapier belt to slide along the guide of the first linear guide rail seat through forward rotation to perform a weft insertion action once. When the first rapier wheel rotates in the reverse direction, it drives the first rigid rapier belt to slide along the guide of the first linear guide rail seat to complete the reset movement. At the same time, it drives the first flexible rapier belt to slide along the guides of the first horizontal guiding part and the first inclined guiding part to perform a weft insertion action once. Therefore, at least two weft insertion actions can be performed only when the first rapier wheel rotates forward and backward once. Moreover, during the operation of the equipment, the rotational speed sensor, the first position sensor, and the first flexible rapier belt are used to respectively perform intelligent monitoring on the first rapier wheel, the first rigid rapier belt, and the first flexible rapier belt. When a fault occurs, the machine can be stopped immediately and feedback can be given. This is beneficial to improving the weft insertion efficiency of the equipment. In the case of the same number of weft insertions, the moving speeds of the first rapier wheel, the first rigid rapier, and the first flexible rapier can be reduced, component wear can be reduced to improve the service life of the equipment, and intelligent monitoring during the operation of the equipment can be realized to improve the intelligent level of the equipment.

[0011] In one embodiment, a first guiding groove is provided inside the first horizontal guiding portion and the first inclined guiding portion. The first flexible rapier belt is located in the first guiding groove. The first flexible rapier belt has a through hole, a top surface, a left side surface, a right side surface, and a bottom surface. A first clearance groove is provided at the top of the first guiding groove. An elastic ball clamping structure is provided between the inner wall of the first guiding groove and the first flexible rapier belt. The elastic ball clamping structure is used to elastically clamp the top surface, the left side surface, the right side surface, and the bottom surface of the first flexible rapier belt. The teeth of the first rapier wheel pass through the first clearance groove and extend into the first guiding groove to engage with the first flexible rapier belt.

[0012] In one embodiment, the elastic ball clamping structure includes mounting posts provided on the inner wall of the first guiding groove. A ball body, a push plate, and a spring are provided inside the mounting posts. A limiting opening is provided at the end of the mounting post close to the first flexible rapier belt. One end of the spring is provided on the inner wall of the first guiding groove, and the other end of the spring is connected to the push plate. The push plate abuts against the ball body so that the ball surface of the ball body extends out of the limiting opening to abut against the first flexible rapier belt.

[0013] In one embodiment, the weft insertion device further includes at least one set of auxiliary weft insertion components. The auxiliary weft insertion components include 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 there is a spacing between the second rapier wheel and the first inclined guiding 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 provided on the top of the frame. The second curved guide rail seat includes a third horizontal guiding portion and a second inclined guiding portion which are connected to each other. The third horizontal guiding portion is provided on the top of the frame and is located below the second linear guide rail seat. The second inclined guiding portion is arranged close to the second rapier wheel. There is a spacing between the second inclined guiding portion and the first rapier wheel and the first inclined guiding portion. The second rapier belt assembly includes a second rigid rapier belt and a second flexible rapier belt which are arranged up and down. The second rigid rapier belt is slidably arranged on the second linear guide rail seat and extends out of the second linear guide rail seat to engage with the upper part of the second rapier wheel. The second flexible rapier belt is slidably arranged on the third horizontal guiding portion and the second inclined guiding portion and engages with the lower part of the second rapier wheel.

[0014] In one embodiment, a second guiding groove is provided inside the third horizontal guiding portion and the second inclined guiding portion. The second flexible rapier belt is located in the second guiding groove. The second flexible rapier belt has a through hole, a top surface, a left side surface, a right side surface, and a bottom surface. A second clearance groove is provided at the top of the second guiding groove. An elastic ball clamping structure is provided between the inner wall of the second guiding groove and the second flexible rapier belt. 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. The teeth of the second rapier wheel pass through the second clearance groove and extend into the second guiding groove to engage with the second flexible rapier belt.

[0015] In one embodiment, the first curved guide rail base further includes a second horizontal guiding portion connected to the first inclined guiding portion. The second horizontal guiding portion is located below the first rapier wheel. The second curved guide rail base further includes a fourth horizontal guiding portion connected to the second inclined guiding portion. The fourth horizontal guiding portion is located below the second rapier wheel.

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

[0017] In one embodiment, the driving device includes a driving motor, a primary main shaft transmission assembly, and a secondary weft insertion transmission assembly provided on the frame. The driving motor is in transmission connection with the first rapier 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 rotating shaft and a second weft insertion rotating shaft rotatably connected to the frame. 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 are arranged on the first weft insertion rotating shaft along its axial direction. A connecting rod driving assembly is arranged between the first weft insertion rotating shaft and the second weft insertion rotating shaft. 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 includes a gear rotating shaft provided on the frame and a rapier wheel shaft connected to the first rapier wheel. An arc gear is arranged on the second weft insertion rotating shaft. A first gear and a first bevel gear are arranged on the gear rotating shaft. The first gear meshes with the arc gear. A second bevel gear meshing with the first bevel gear is arranged on the rapier wheel shaft.

[0019] In one embodiment, the frame includes a support plate and a mounting plate disposed on the support plate. A groove is provided at the top of the support plate, and the first linear guide rail seat is disposed on the groove. The main drive shaft, the first weft insertion rotating shaft, the second weft insertion rotating shaft, and the gear rotating shaft are all disposed on the mounting plate.

[0020] The weft insertion control structure for a rapier loom provided by the present invention has at least the following beneficial effects: Under the driving action of the driving motor, the first rapier wheel drives the first rigid rapier belt to slide along the guide of the first linear guide rail seat through forward rotation to perform a weft insertion action; when the first rapier wheel rotates in the reverse direction, it drives the first rigid rapier belt to slide along the guide of the first linear guide rail seat to complete the reset movement. At the same time, it drives the first flexible rapier belt to slide along the guides of the first horizontal guide portion and the first inclined guide portion to perform a weft insertion action. Thus, at least two weft insertion actions can be performed when the first rapier wheel rotates forward and backward once. Moreover, during the operation of the equipment, the rotation speed sensor, the first position sensor, and the first flexible rapier belt are used to respectively perform intelligent monitoring on the first rapier wheel, the first rigid rapier belt, and the first flexible rapier belt. When a fault occurs, the machine can be immediately stopped and feedback can be provided. This is beneficial to improving the weft insertion efficiency of the equipment. In the case of the same number of weft insertions, the moving speeds of the first rapier wheel, the first rigid rapier, and the first flexible rapier can be reduced, component wear can be reduced to extend the service life of the equipment, and intelligent monitoring during the operation of the equipment can be realized to improve the intelligent level of the equipment.

[0021] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0023] Figure 1 is a three-dimensional structure diagram when the weft insertion control structure for a rapier loom of the present invention is in use;

[0024] Figure 2 is Figure 1 a partial enlarged view of A in

[0025] Figure 3 is a schematic diagram of the connection relationship among the first rapier wheel, the first rigid rapier belt, and the first flexible rapier belt in the weft insertion control structure for a rapier loom of the present invention;

[0026] Figure 4 is an internal structure diagram of the first horizontal guide portion in the weft insertion control structure for a rapier loom of the present invention;

[0027] Figure 5 Schematic diagram of the assembly structure of the first rapier wheel, the second rapier wheel and the guiding part in the weft insertion control structure applied to a rapier loom according to the present invention;

[0028] Figure 6 The first internal structure diagram when the weft insertion control structure applied to a rapier loom according to the present invention is in use;

[0029] Figure 7 The second internal structure diagram when the weft insertion control structure applied to a rapier loom according to the present invention is in use.

[0030] In the drawings: 100 - frame; 200 - first rapier wheel; 300 - driving motor; 4 - first linear guide seat; 5 - second horizontal guiding part; 6 - first inclined guiding part; 7 - first rigid rapier belt; 8 - first flexible rapier belt; 9 - first guiding groove; 10 - mounting post; 11 - ball body; 12 - push plate; 13 - spring; 14 - through hole; 15 - second rapier wheel; 16 - second linear guide seat; 17 - fourth horizontal guiding part; 18 - second inclined guiding part; 19 - second rigid rapier belt; 20 - second flexible rapier 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 - rapier 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 - fixing plate; 500 - first position sensor; 38 - second position sensor; 39 - rotational speed sensor; 400 - first clearance groove. Detailed implementation manners

[0031] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship involved, such as up, down, front, back, left, right, etc., indicates the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0034] The following will Figures 1 to 7 describe the embodiments of the present invention.

[0035] As Figures 1 - 7 shown, this embodiment relates to a weft insertion control structure applied to a rapier loom, including a frame 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 are arranged on the frame 100. The weft insertion device includes a set of main weft insertion components, and the main weft insertion components include a first rapier wheel 200, a first guide rail seat assembly, and a first rapier belt assembly.

[0036] Among them, the first rapier wheel 200 is rotatably arranged on the frame 100. The first guide rail seat assembly includes 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 frame 100. The first curved guide rail seat includes a first horizontal guiding part and a first inclined guiding part 6 that are connected to each other. The first horizontal guiding part is arranged on the top of the frame 100. The first horizontal guiding part is located below the first linear guide rail seat 4. The first inclined guiding part 6 is arranged close to the first rapier wheel 200.

[0037] Among them, the first rapier belt assembly includes 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 up and down. The first rigid rapier belt 7 is slidably arranged on the first linear guide rail seat 4, and the first rigid rapier belt 7 extends out from the first linear guide rail seat 4 and meshes with the upper part of the first rapier wheel 200. The first flexible rapier belt 8 is slidably arranged on the first horizontal guiding part and the first inclined guiding part 6, and the first flexible rapier belt 8 meshes with the lower part of the first rapier wheel 200. It should be noted that tooth block engaging holes are provided on the rapier belt for engaging with the protruding teeth on the first rapier wheel 200.

[0038] Among them, the intelligent monitoring device includes a rotational speed sensor 39, a first position sensor 500, and a second position sensor 38. The rotational speed sensor 39 is arranged on the first rapier wheel 200. The first position sensor 500 is arranged at the end of the first linear guide rail seat 4 far from the first rapier wheel 200. The second position sensor 38 is arranged at the end of the first horizontal guiding part far from the first rapier wheel 200;

[0039] Among them, the driving device is in transmission connection with the first sword guiding wheel 200 to drive the first sword guiding wheel 200 to rotate, so as to drive the first rigid sword belt 7 to move in the first linear guide rail seat 4 and the first flexible sword belt 8 to move in the first horizontal guiding part in opposite directions. That is, the moving direction of the first rigid sword belt 7 in the first linear guide rail seat 4 is opposite to the moving direction of the first flexible sword belt 8 in the first horizontal guiding part.

[0040] On the basis of the above structure, during the weft insertion operation, the driving motor 300 drives the first sword guiding wheel 200 to rotate forward. Under the driving action of the driving motor 300, the first rigid sword belt 7 slides along the guide of the first linear guide rail seat 4 and moves towards the shed of the rapier loom to perform a weft insertion action. Then, the driving motor 300 drives the first sword guiding wheel 200 to rotate in the reverse direction, so that the first rigid sword belt 7 is reset to prepare for the next weft insertion action. At the same time, under the reverse driving action of the driving motor 300, the first flexible sword belt 8 slides along the guides of the first horizontal guiding part, the first inclined guiding part 6 and the second horizontal guiding part 5 and moves towards the shed of the rapier loom to perform a weft insertion action.

[0041] It should be noted that by only presetting, when the first rigid sword belt 7 is reset in place, the first flexible sword belt 8 is in place for weft insertion. In this way, the first rigid sword and the first flexible sword can cooperate with each other to perform continuous weft insertion operations.

[0042] Among them, the rotational speed sensor 39 is installed on the first sword guiding wheel 200 and is used to monitor the rotational speed of the first sword guiding wheel 200 in real time, which has the function of ensuring the accuracy and stability of controlling the weft insertion process. The rotational speed sensor 39 can feedback the rotational speed data of the first sword guiding wheel 200 to the computer system in real time. The system judges whether the current rotational speed is appropriate according to the preset rotational speed range and adjusts the output of the driving motor to ensure that the sword guiding wheel runs at the optimal speed. At the same time, when the rotational speed sensor detects that the rotational speed of the first sword guiding wheel is abnormal (such as sudden acceleration, deceleration or stop), it will immediately send a warning signal to the computer system to timely detect and handle potential mechanical failures and prevent shutdowns or damages caused by failures. In addition, by monitoring the rotational speed, the system can calculate the energy consumption data of the driving motor under different working conditions. Based on this data, the system can automatically adjust the operating parameters of the motor to minimize the energy consumption, thereby improving the overall energy efficiency of the loom.

[0043] Among them, the first position sensor 500 is installed on the moving path of the first rigid rapier band 7 to detect whether it has moved into place. When the first rigid rapier band 7 completes a weft insertion action, the first position sensor 500 will immediately detect its position change and send a signal to the computer system. Based on this signal, the system can precisely control the reverse timing of the drive motor to ensure that the first rigid rapier band can accurately return to its original position. If the first position sensor 500 does not detect the in-place signal of the first rigid rapier band within the preset time, it will send an abnormal alarm to the system. This helps to promptly detect and handle faults such as rapier band jamming and breakage, ensuring the continuity of the weft insertion process. In addition, by recording the trigger times and time intervals of the first position sensor, the system can analyze parameters such as the moving speed and acceleration of the first rigid rapier band, and use this data to optimize the weft insertion process and improve the efficiency of the rapier loom.

[0044] Among them, the second position sensor 38 is installed on the moving path of the first flexible rapier band 8 to detect whether it has moved into place. By real-time monitoring of the in-place position of the first flexible rapier band 8 through the second position sensor 38, it can be ensured that the movement of the first flexible rapier band 8 is synchronized with that of the first rigid rapier band 7. When the first rigid rapier band returns to its in-place position, the first flexible rapier band just completes the weft insertion action and is ready to return to its original position. This synchronous control is crucial for realizing continuous weft insertion operation.

[0045] When the equipment is working, the cooperation relationship of the rotational speed sensor 39, the first position sensor 500, and the second position sensor 38 is as follows. Through the detection of the rotational speed sensor 39 and using the computer system to obtain the rotational speed of the first sword wheel 200 in real time, after the first sword wheel 200 completes the preset number of rotation cycles, the first position sensor 500 detects whether the first rigid rapier band 7 has moved into place, and the second position sensor 38 detects whether the first flexible rapier band 8 has moved into place. Thus, it can be detected at any time whether the equipment is operating normally, realizing the intelligent monitoring of the first sword wheel 200, the first rigid rapier band 7, and the first flexible rapier band 8, jointly ensuring the accuracy, stability, and continuity of the weft insertion process, and providing guarantee for the efficient operation of the rapier loom.

[0046] It can be seen that under the driving action of the driving motor 300 of the present invention, the first sword guiding wheel 200 drives the first rigid sword belt 7 to slide along the guide of the first linear guide rail seat 4 through forward rotation to perform a weft insertion action once; when the first sword guiding wheel 200 rotates reversely, it drives the first rigid sword belt 7 to slide along the guide of the first linear guide rail seat 4 to complete the reset movement. At the same time, it drives the first flexible sword belt 8 to slide along the guides of the first horizontal guiding part and the first inclined guiding part 6 to perform a weft insertion action once. Thus, at least two weft insertion actions can be performed when the first sword guiding wheel 200 rotates forward and backward once. Moreover, during the operation of the equipment, the rotation speed sensor 39, the first position sensor 500, and the first flexible sword belt 8 are respectively used to intelligently monitor the first sword guiding wheel 200, the first rigid sword belt 7, and the first flexible sword belt 8. When a fault occurs, the machine can be stopped immediately and feedback can be given. This is beneficial to improving the weft insertion efficiency of the equipment. In the case of the same number of weft insertions, the moving speeds of the first sword guiding wheel 200, the first rigid sword, and the first flexible sword can be reduced, component wear can be reduced to extend the service life of the equipment, and intelligent monitoring during the operation of the equipment can be realized, improving the intelligent level of the equipment.

[0047] Among them, a first guide groove 9 is provided inside the first horizontal guiding part and the first inclined guiding part 6. The first flexible sword belt 8 is located in the first guide groove 9. The first flexible sword belt 8 has a through hole 14, a top surface, a left side surface, a right side surface, and a bottom surface. A first clearance groove 400 is provided at the top of the first guide groove 9. An elastic ball clamping structure is provided between the inner wall of the first guide groove 9 and the first flexible sword belt 8, that is, this clamping structure is a ball clamping structure. Compared with direct friction, the frictional force of rolling friction is smaller and it is not easy to get stuck. The elastic ball clamping structure is used to elastically clamp the top surface, left side surface, right side surface, and bottom surface of the first flexible sword belt 8. The teeth of the first sword guiding wheel 200 pass through the first clearance groove 400 and extend into the first guide groove 9 to mesh with the first flexible sword belt 8. Due to the flexible characteristics of the first flexible sword belt 8, if the first curved guide rail seat is not provided, the first flexible sword belt 8 cannot move along a predetermined route. Therefore, the first curved guide rail seat must be provided to guide the first flexible sword belt 8. However, the movement route of the first flexible sword belt 8 cannot be a straight line, otherwise it will form a movement interference with the first rigid sword belt 7. Therefore, the first curved guide rail seat must be set as a curved guiding structure. Compared with the linear guiding structure, the curved guiding structure has the problems of long transmission distance and large friction. Since the method of adding lubricants for lubrication cannot be used, the first flexible sword belt 8 is likely to get stuck during guiding, and the reliability is relatively low.

[0048] Therefore, by using an elastic ball clamping structure to elastically clamp the top surface, left side surface, right side surface, and bottom surface of the first flexible rapier belt 8, the first flexible rapier belt 8 can be fixedly clamped while avoiding the elastic ball clamping structure directly getting stuck in the through hole 14 of the first flexible rapier belt 8. At the same time, it can effectively reduce the friction between the first curved guide rail seat and the first flexible rapier belt 8, and avoid the situation where the first flexible rapier belt 8 is stuck due to excessive friction in the curved first curved guide rail seat.

[0049] Specifically, the elastic ball clamping structure includes a mounting post 10 provided on the inner wall of the first guide groove 9. Inside the mounting post 10, there are a ball body 11, a push plate 12, and a spring 13. The end of the mounting post 10 close to the first flexible rapier belt 8 is provided with a limiting opening. One end of the spring 13 is provided on the inner wall of the first guide groove 9, and the other end of the spring 13 is connected to the push plate 12. The push plate 12 abuts against the ball body 11 so that the ball surface of the ball body 11 extends out from the limiting opening to abut against the first flexible rapier belt 8. This structure has the advantages of simple structure, stable reliability, and low failure rate.

[0050] Among them, the weft insertion device further includes at least one set of auxiliary weft insertion components. The auxiliary weft insertion components include a second rapier wheel 15, a second guide rail seat assembly, and a second rapier belt assembly. The second rapier wheel 15 is connected to the first rapier wheel 200 and is coaxially arranged with the first rapier wheel 200. There is a spacing between the second rapier wheel 15 and the first inclined guiding portion 6. The second guide rail seat assembly includes a second linear guide rail seat 16 and a second curved guide rail seat. The second linear guide rail seat 16 is provided on the top of the frame 100. The second curved guide rail seat includes a third horizontal guiding portion and a second inclined guiding portion 18 that are connected to each other. The third horizontal guiding portion is provided on the top of the frame 100 and is located below the second linear guide rail seat 16. The second inclined guiding portion 18 is arranged close to the second rapier wheel 15. There are spacings between the second inclined guiding portion 18 and the first rapier wheel 200 and the first inclined guiding portion 6. The second rapier belt assembly includes a second rigid rapier belt 19 and a second flexible rapier belt 20 arranged up and down. The second rigid rapier belt 19 is slidably arranged on the second linear guide rail seat 16 and extends out from the second linear guide rail seat 16 to mesh with the upper part of the second rapier wheel 15. The second flexible rapier belt 20 is slidably arranged on the third horizontal guiding portion and the second inclined guiding portion 18 and meshes with the lower part of the second rapier wheel 15. That is to say, the rapier wheel can be a multi-tooth structure. By driving the first rapier wheel 200, the second rapier wheel 15 can be driven to rotate at the same time. That is, by only driving the first rapier wheel 200, the first rigid rapier belt 7, the first flexible rapier belt 8, the second rigid rapier belt 19, and the second flexible rapier belt 20 can be driven to move. Thus, at least four weft insertion actions can be performed when the first rapier wheel 200 makes a single forward rotation, thereby further improving the weft insertion efficiency.

[0051] Among them, a second guiding groove is provided inside the third horizontal guiding portion and the second inclined guiding portion 18. The second flexible rapier belt 20 is located in the second guiding 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. A second clearance groove is provided at the top of the second guiding groove. An elastic ball clamping structure is provided between the inner wall of the second guiding 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 teeth of the second rapier wheel 15 pass through the second clearance groove and extend into the second guiding groove to engage with the second flexible rapier. That is to say, the second curved guide rail seat also adopts an elastic ball clamping structure.

[0052] Among them, the first curved guide rail seat further includes a second horizontal guiding portion 5 connected to the first inclined guiding portion 6. The second horizontal guiding portion 5 is located below the first rapier wheel 200; the second curved guide rail seat further includes a fourth horizontal guiding portion 17 connected to the second inclined guiding portion 18. The fourth horizontal guiding portion 17 is located below the second rapier wheel 15. In this way, by providing the second horizontal guiding portion 5 and the fourth horizontal guiding portion 17, the movement directions of the first flexible rapier belt 8 and the second flexible rapier belt 20 are changed, so that the ground will not cause movement interference to the first flexible rapier belt 8 and the second flexible rapier belt 20, and thus the lengths of the first flexible rapier belt 8 and the second flexible rapier belt 20 can be extended as required.

[0053] Among them, the diameter of the second rapier wheel 15 can be the same as that of the first rapier wheel 200, or the diameter of the second rapier wheel 15 can be smaller than that of the first rapier wheel 200, so as to achieve different transmission speeds.

[0054] Among them, the driving device includes a driving motor 300, a primary main shaft transmission component and a secondary weft insertion transmission component provided on the frame 100. The driving motor 300 is in transmission connection with the first rapier wheel 200. The primary main shaft transmission component includes a main driving shaft 21 rotatably connected to the frame 100. Along the axial direction of the main driving shaft 21, a first conjugate cam 22 and a second conjugate cam 23 are provided. The secondary weft insertion transmission component includes a first weft insertion rotating shaft 24 and a second weft insertion rotating shaft 25 rotatably connected to the frame 100. Along the axial direction of the first weft insertion rotating shaft 24, 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 are provided. A link driving component is provided 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 component. That is to say, the weft insertion control structure adopts a transmission structure of conjugate cams. The use of conjugate cams has high transmission accuracy and small volume, which is beneficial to reducing the volume of the transmission structure.

[0055] Among them, the gear transmission assembly includes a gear rotating shaft 27 arranged on the frame 100 and a sword wheel shaft 28 connected to the first sword guiding wheel 200. An arc-shaped gear 29 is arranged on the second weft insertion rotating shaft 25, a first gear 30 and a first bevel gear 31 are arranged on the gear rotating shaft 27. The first gear 30 meshes with the arc-shaped gear 29, and a second bevel gear 32 meshing with the first bevel gear 31 is arranged on the sword wheel shaft 28. Thus, the overall load-bearing capacity of the transmission structure is effectively improved by using the high load-bearing capacity of the arc-shaped gear 29.

[0056] Among them, the frame 100 includes a support plate 1001 and a mounting plate 1002 arranged on the support plate 1001. A groove 35 is arranged at the top of the support plate 1001, the first linear guide rail seat 4 is arranged on the groove 35, and the main drive shaft 21, the first weft insertion rotating shaft 24, the second weft insertion rotating shaft 25 and the gear rotating shaft 27 are all arranged on the mounting plate 1002. In this way, during installation, it is only necessary to first install the main drive shaft 21, the first weft insertion rotating shaft 24, the second weft insertion rotating shaft 25 and the gear rotating shaft 27 on the mounting plate 1002, and then install the mounting plate 1002 on the support plate 1001 to achieve the overall assembly, and its installation is convenient and simple.

[0057] Among them, a fixing plate 36 is arranged on the first linear guide rail seat 4, and the first sword guiding wheel 200 is rotatably connected to the fixing plate 36, thus facilitating the installation of the first sword guiding wheel 200.

[0058] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the described embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present invention, and these equivalent variations or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. A weft insertion control structure applied to a rapier loom, characterized in that: It 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 group of main weft insertion components, and the main weft insertion components comprise a first rapier wheel, a first guide rail seat component and a first rapier belt component; The first sword-introducing 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-introducing wheel; The first rapier band assembly includes a first rigid rapier band and a first flexible rapier band arranged up and down, the first rigid rapier band is slidably arranged on the first linear guide rail seat and extends from the first linear guide rail seat to engage with the upper part of the first rapier wheel, and 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 part of the first rapier wheel; The intelligent monitoring device comprises a rotation speed sensor, a first position sensor and a second position sensor, wherein the rotation speed sensor is arranged on the first sword-introducing wheel, the first position sensor is arranged on the end of the first linear guide rail seat away from the first sword-introducing wheel, and the second position sensor is arranged on the end of the first horizontal guide portion away from the first sword-introducing wheel; The driving device is connected to 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 seat and the first flexible rapier belt to move in the first horizontal guide portion in opposite directions.

2. The weft insertion control structure applied to 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 side surface, a right side 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 for elastically clamping the top surface, the left side surface, the right side surface and the bottom surface of the first flexible rapier band, the gear teeth of the first sword guiding wheel pass through the first air avoidance groove to extend into the first guide groove and mesh with the first flexible rapier band.

3. The weft insertion control structure applied to a rapier loom according to claim 2, characterized in that: The elastic ball clamping structure includes a mounting column arranged on the inner wall of the first guide groove, a ball body, a push plate and a spring are arranged inside the mounting column, a limiting opening is arranged at the end of the mounting column 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 applied to a rapier loom according to claim 2, characterized in that: The weft insertion device also includes at least one auxiliary weft insertion assembly, the auxiliary weft insertion assembly includes 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 spacing is arranged 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 on 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 on the top of the frame and is located at the second linear guide Below the guide rail seat, the second oblique guide portion is arranged close to the second sword-drawing wheel, and a spacing is arranged 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 applied to 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 side surface, a right side 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 for elastically clamping the top surface, the left side surface, the right side surface and the bottom surface of the second flexible rapier band, the gear teeth of the second sword guiding wheel pass through the second air avoidance groove to extend into the second guide groove and mesh with the second flexible rapier band.

6. The weft insertion control structure applied to 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-leading 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-leading wheel.

7. The weft insertion control structure applied to 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 applied to 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-introducing wheel in transmission, 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 and a second weft insertion roller for cooperating with the second conjugate cam 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-introducing wheel in transmission through a gear transmission assembly.

9. The weft insertion control structure applied to 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-introducing wheel, an arc gear is arranged on the second weft-introducing 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 applied to 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 arranged on the top of the support plate, the first linear guide seat is arranged on the groove, and the main driving shaft, the first weft insertion shaft, the second weft insertion shaft and the gear shaft are all arranged on the mounting plate.

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