A high-speed precision gear transmission mechanism for jacquard machine

Abstract

The present invention belongs to the technical field of textile equipment, and specifically relates to a high-speed precision gear transmission mechanism of a jacquard machine, including a pulling and winding frame; a cloth-supporting roller group, an opening roller, a cloth-feeding roller group, an auxiliary roller group and a winding roller movably mounted on the pulling and winding frame; a motor and a transmission component for driving the cloth-supporting roller group, the cloth-feeding roller group and the winding roller to rotate; and a swinging member for swinging and adjusting the opening roller; wherein tension sensors for monitoring the winding tension are installed at both ends of one of the cloth-guide rollers of the auxiliary roller group; and a tension control system is also included, which can control the winding speed of the cloth-supporting roller group, the opening roller and the winding roller, and control the cloth-supporting angle of the opening roller, so as to control the winding tension. The present invention can dynamically adjust the winding speed and tension during the weaving process of the cloth according to the needs of different cloths, thereby improving the output quality of the cloth.

Description

Technical Field

[0001] The invention belongs to the technical field of textile equipment, and in particular relates to a high-speed precision gear transmission mechanism of a jacquard machine. Background Art

[0002] Jacquard machine is a kind of equipment used to produce knitted fabrics with spiral texture, which mainly consists of the following parts:

[0003] The loop forming assembly is the core part of the knitting thread machine. It is mainly responsible for bending the yarn into loops in sequence and making these loops interlock to form a knitted fabric.

[0004] The yarn feeding assembly and the yarn feeding mechanism deliver the yarn on the bobbin or warp beam to the loop forming mechanism at a certain tension and speed according to the requirements of the weaving system.

[0005] The pattern component, the pattern mechanism is called the needle selection mechanism in weft knitting, which selects the knitting needles or sinkers according to the requirements of the pattern.

[0006] Transmission assembly: The transmission mechanism is based on the main shaft, and various transmission parts are used to make the various parts of the machine move.

[0007] The pulling and winding assembly, with a certain tension and speed, leads the fabric out of the weaving area and rolls it into a cloth roll.

[0008] The needle bed transverse shift assembly enables one needle bed of the flat knitting machine to be transversely shifted by a certain needle distance relative to another needle bed, which is used for knitting such as transferring loops.

[0009] Among them, the pulling and winding assembly is generally connected to the transmission assembly, and the power of the transmission assembly is used to drive it to move synchronously with the loop forming assembly so as to wind up the knitted fabric. However, the existing pulling and winding assembly has the following defects in specific applications:

[0010] 1. Since the adjustment of the pulling and winding amount directly affects the looping process and product quality, the speed and tension of the pulling and winding are crucial to the output quality of the cloth. However, the existing pulling and winding components mostly use gear box transmission, which has poor transmission accuracy, unadjustable speed, and unadjustable winding tension, thus failing to meet the needs of modern production.

[0011] 2. The opening roller in the pulling and winding assembly is a bow-shaped roller used to stretch the cloth for winding. It is generally fixed on the frame. It is not only troublesome to adjust, but also difficult to replace due to wear and tear after long-term use, which brings a lot of inconvenience to the future maintenance of the equipment. Summary of the invention

[0012] The purpose of the present invention is to provide a high-speed precision gear transmission mechanism for a jacquard machine, which can dynamically adjust the winding speed and tension during the weaving process of the cloth according to the needs of different cloths, thereby improving the output quality of the cloth, and at the same time, the opening roller is easy to replace, and the floating hair raised by the cloth when it passes through its surface can be absorbed to prevent it from floating into the equipment and causing equipment failure.

[0013] The technical solution adopted by the present invention is as follows:

[0014] A high-speed precision gear transmission mechanism for a jacquard machine, comprising:

[0015] Pull-and-reel frame;

[0016] A cloth supporting roller group, a width opening roller, a cloth feeding roller group, an auxiliary roller group and a winding roller movably mounted on the pulling and winding frame;

[0017] A motor and a transmission component for driving the cloth supporting roller group, the cloth feeding roller group and the winding roller to rotate;

[0018] and a swinging member for swinging and adjusting the width-opening roller;

[0019] Wherein, tension sensors for monitoring winding tension are installed at both ends of one of the cloth guide rollers of the auxiliary roller group;

[0020] It also includes a tension control system for receiving tension feedback from the tension sensor and using it to control the motor speed and the swing component, thereby controlling the cloth-supporting roller group, the opening roller and the winding speed of the winding roller, and controlling the cloth-supporting angle of the opening roller, so as to regulate the winding tension.

[0021] As a preferred solution, the pulling and winding frame includes a rotating base, a bottom bracket fixedly mounted on the rotating base, side support plates symmetrically mounted at both ends of the bottom bracket, a driving arm fixedly mounted between the tops of the two groups of side support plates, and a first support box and a second support box fixedly mounted at both ends of the driving arm, and a bottom support box is also fixedly mounted on the bottom surface of the second support box.

[0022] As a preferred embodiment, the cloth feed roller group, the auxiliary roller group and the winding roller are rotatably connected in sequence between the two groups of side support plates, the cloth support roller group is rotatably connected between the first support box and the second support box, and the opening roller is arranged in the vertical gap between the cloth support roller group and the cloth feed roller group and the auxiliary roller group.

[0023] As a preferred solution, the motor includes a first servo motor, a second servo motor and a third servo motor;

[0024] The transmission component includes a first gear group connected between the cloth supporting roller group and the first servo motor, a second gear group connected between the cloth feeding roller group and the second servo motor, and a chain transmission group connected between the winding roller and the third servo motor.

[0025] As a preferred solution, the swinging component includes a movable push rod fixedly installed at the bending center of the opening roller, a cross-bracing rod rotatably connected between the side support plates, and a pushing component for pushing the movable push rod to move. A lifting component for pushing the cross-bracing rod to slide up and down is provided between the cross-bracing rod and the side support plates. A clamping support is fixedly clamped on the cross-bracing rod, and the thin rod end of the movable push rod is slidably embedded in the top end of the clamping support.

[0026] As a preferred solution, the pushing component includes a support frame fixedly installed inside the bottom support box, a screw rod vertically rotatably connected to the support frame, a nut slide vertically slidably connected to the inside of the support frame, and a fourth servo motor fixedly installed on the bottom surface of the bottom support box, the nut slide is threadedly connected to the screw rod, the fourth servo motor is transmission-connected to the screw rod through a third gear set, and the thin rod end of the movable push rod is rotationally connected to the nut slide;

[0027] The lifting component includes a vertical bearing slide seat vertically slidably connected to the side support plate and an upper lifting cylinder fixedly installed on the side support plate. The power output end of the lifting cylinder is fixedly installed on the bottom surface of the vertical bearing slide seat through a support plate.

[0028] As a preferred solution, the thin rod end of the movable push rod is provided with tooth grooves in an equidistant array, a micro cylinder is fixedly mounted on the top surface of the clamping support, and the power output end of the micro cylinder passes through the clamping support and extends into the tooth groove.

[0029] As a preferred solution, the opening roller includes a bow-shaped seat, a bow-shaped roller nested in the front of the bow-shaped seat, a filter nested in the inside of the bow-shaped seat, and air extraction terminals arranged at both ends of the bow-shaped seat for fixing the bow-shaped seat and the bow-shaped roller. The diameter of the bow-shaped roller is smaller than the diameter of the bow-shaped seat, and dust suction gaps are staggered between the connecting incisions to absorb cloth fluff during the cloth stretching process.

[0030] As a preferred solution, mounting holes are provided at both ends of the bow-shaped seat, U-shaped bayonet holes are provided at both ends of the bow-shaped roller, the vacuum terminal is embedded in the mounting holes, and a clamp seat is integrally formed at one end extending to the interior of the bow-shaped seat, a nut seat is threadedly connected to the vacuum terminal, and the U-shaped bayonet is clamped between the nut seat and the clamp seat.

[0031] As a preferred solution, it also includes a vacuum suction pump, whose suction port is connected to the suction terminal through a universal hose, so as to extract the air between the bow seat and the bow roller through the suction terminal.

[0032] The technical effects achieved by the present invention are:

[0033] The present invention sets a tension control system to cooperate with the first servo motor, the second servo motor, the tension sensor, the third servo motor and the fourth servo motor. The winding tension can be fed back through the tension sensor and the motor speed is controlled to control the cloth supporting angle of the opening roller, and the winding speed of the cloth supporting roller group, the opening roller and the winding roller is controlled, so that the cloth winding is kept within a preset tension range, thereby improving the output quality of the cloth.

[0034] The present invention forms an open-width roller by arranging a bow-shaped seat, a bow-shaped roller, a filter screen and an air suction terminal. The air suction terminal can be used to clamp and fix the bow-shaped seat and the bow-shaped roller to form a dust suction gap. When installing and disassembling, it only needs to rotate the air suction terminal to complete the installation and disassembly. The installation and disassembly are convenient for subsequent maintenance of the equipment. At the same time, a vacuum suction pump is used in cooperation with the air suction terminal to extract the air between the bow-shaped seat and the bow-shaped roller to form a negative pressure. The dust suction gap is used to absorb the floating hair raised when the cloth passes through the surface of the bow-shaped roller to prevent it from floating into the equipment and causing equipment failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a front view of an embodiment of the present invention;

[0036] Figure 2 is a schematic diagram of the three-dimensional structure of the pulling and winding assembly in an embodiment of the present invention;

[0037] Figure 3 It is a schematic diagram of the three-dimensional structure of the pulling and winding frame in an embodiment of the present invention;

[0038] Figure 4 The present invention Figure 2 Exploded diagram of

[0039] Figure 5 The present invention Figure 4 Schematic diagram of the local three-dimensional structure;

[0040] Figure 6 2 is a schematic structural diagram of a cloth supporting roller group according to an embodiment of the present invention;

[0041] Figure 7 Schematic diagram of the combined structure of the swing component and the width-opening roller in an embodiment of the present invention;

[0042] Figure 8 2 is a schematic structural diagram of an opening roller in an embodiment of the present invention;

[0043] Fig. 9 The present invention Figure 8 Exploded diagram of

[0044] Fig.10 The present invention Fig. 9 A magnified view of the part in the middle;

[0045] Fig.11 The present invention Fig. 9 A magnified view of the part in middle B;

[0046] Fig.12 The present invention Fig. 9 A top sectional view of

[0047] Fig.13 The present invention Fig.12 The enlarged view of the part C in the middle;

[0048] Fig.14 is a schematic structural diagram of a cloth feed roller group in an embodiment of the present invention;

[0049] Fig.15 is a schematic structural diagram of an auxiliary roller group in an embodiment of the present invention;

[0050] Fig.16 is a schematic structural diagram of a winding roller in an embodiment of the present invention;

[0051] Fig.17 Schematic diagram of the structure of the tension control system in the embodiment of the present invention.

[0052] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0053] 100, pulling and winding assembly; 200, jacquard machine body;

[0054] 1. Pulling and coiling frame;

[0055] 11. Rotating base; 12. Bottom bracket; 13. Side support plate; 14. Driving arm; 15. First support box; 16. Second support box; 17. Bottom support box;

[0056] 2. Cloth supporting roller group;

[0057] 21. a first servo motor; 22. a first gear set;

[0058] 3. Opening roller;

[0059] 31. bow-shaped seat; 311. auxiliary support foot; 312. mounting through hole; 32. bow-shaped roller; 321. U-shaped bayonet; 33. filter screen; 34. exhaust terminal; 341. clamp seat; 342. nut seat;

[0060] 4. Feed roller group;

[0061] 41. second servo motor; 42. second gear set; 43. transverse bearing slide; 44. threaded rotary rod;

[0062] 5. Auxiliary roller group;

[0063] 51. Tension sensor;

[0064] 6. Winding roller;

[0065] 61. a third servo motor; 62. a chain transmission group;

[0066] 7. Swinging components;

[0067] 71. fourth servo motor; 72. third gear set; 73. support frame; 74. screw rod; 75. nut slide; 76. movable push rod; 77. clamping support; 78. vertical bearing slide; 79. lifting cylinder; 710. horizontal support rod; 711. micro cylinder; 712. tooth groove; 713. electric telescopic rod;

[0068] 8. Vacuum pump. DETAILED DESCRIPTION

[0069] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0070] like Figure 1-Figure 17 As shown, a high-speed precision gear transmission mechanism of a jacquard machine is applied to a pulling and winding assembly 100 installed in a jacquard machine body 200, including a pulling and winding frame 1, a cloth supporting roller group 2 movably installed on the pulling and winding frame 1, an opening roller 3, a cloth feeding roller group 4, an auxiliary roller group 5 and a winding roller 6, and a swinging member 7 for swinging and adjusting the opening roller 3.

[0071] See attached Figure 2-Figure 3 In order to stably support various components, the pulling and winding frame 1 includes a rotating base 11, a bottom bracket 12 fixedly installed on the rotating base 11, side support plates 13 symmetrically installed at both ends of the bottom bracket 12, a driving arm 14 fixedly installed between the tops of the two groups of side support plates 13, and a first support box 15 and a second support box 16 fixedly installed at both ends of the driving arm 14. A bottom support box 17 is also fixedly installed on the bottom surface of the second support box 16.

[0072] Among them, the driving arm 14 is connected to the transmission assembly on the jacquard body 200 through a fixed bracket, so that the pulling and winding assembly 100 and the loop forming assembly are driven by the power of the transmission assembly to move synchronously to reel the knitted fabric; the cloth support roller group 2 is rotatably connected between the first support box 15 and the second support box 16, and is used to transport the folded fabric into the pulling and winding frame 1, while the cloth feed roller group 4, the auxiliary roller group 5 and the winding roller 6 are rotatably connected between the two groups of side support plates 13 in turn, and the cloth feed roller group 4 can be used to transport the cloth to the auxiliary roller group 5 and the winding roller 6, and the transmission direction is adjusted by the auxiliary roller group 5, and finally the cloth is wound up by the winding roller 6;

[0073] In this embodiment, the cloth-supporting roller group 2 is vertically cross-arranged with the cloth-feeding roller group 4, the auxiliary roller group 5 and the winding roller 6, and the opening roller 3 is arranged in the cross gap; of course, in other embodiments, the cloth-supporting roller group 2 can be arranged in parallel with the cloth-feeding roller group 4, the auxiliary roller group 5 and the winding roller 6, and can be arranged according to specific application requirements.

[0074] Refer to the attached Figure 4-Figure 6 The two cloth-supporting rollers in the cloth-supporting roller group 2 are rotatably connected between the first support box 15 and the second support box 16 through bearings. At the same time, a first servo motor 21 is fixedly installed on the inner side of the second support box 16, and a driving gear is fixedly installed on its power output end. At the same time, one end of the two cloth-supporting rollers located inside the second support box 16 is fixedly installed with a driven gear, and the two are meshed with each other, and one of the driven gears is meshed with the driving gear, and then the first servo motor 21 drives the two cloth-supporting rollers to rotate in opposite directions, so that the cloth woven by the loop forming assembly is transmitted through the two cloth-supporting rollers, and the driving gear and the two driven gears constitute a first gear group 22.

[0075] Refer to the attached Figure 5 as well as Figure 7-Figure 8 In order to adjust the cloth supporting angle of the opening roller 3, the swinging member 7 includes a movable push rod 76 fixedly installed at the bending center of the opening roller 3 and a cross support rod 710 rotatably connected between the side support plates 13. By fixing a clamping support 77 on the cross support rod 710 and sliding the thin rod end of the movable push rod 76 into the top of the clamping support 77, the movable push rod 76 can be used to push the opening roller 3 to move relative to the clamping support 77, and the cross support rod 710 can be used to rotate relative to the side support plate 13 to change its cloth supporting angle.

[0076] Please refer to the attached Figure 5 as well as Figure 7The nut slide 75 is fixedly installed on the bottom support box 17 to drive the movable push rod 76. In order to drive the movable push rod 76, a support frame 73 is fixedly installed inside the bottom support box 17, and a screw rod 74 is connected to the support frame 73 for vertical rotation and a nut slide 75 is connected to the vertical sliding connection. At the same time, a fourth servo motor 71 is fixedly installed on the bottom surface of the bottom support box 17. By threading the nut slide 75 onto the screw rod 74, a driving gear is fixedly installed at the power output end of the fourth servo motor 71, and a driven gear is fixedly installed at the bottom end of the screw rod 74, and the two are meshed. At the same time, the thin rod end of the movable push rod 76 is rotatably connected to the nut slide 75, and the fourth servo motor 71 can be used to drive the screw rod 74 to rotate, thereby pushing the nut slide 75 to slide along the predetermined track, so that the movable push rod 76 is used to push the opening roller 3 to move compared with the clamping support 77, and the cross support rod 710 is used to rotate compared with the side support plate 13, so as to achieve the purpose of adjusting the cloth supporting angle of the opening roller 3, and the driven gear and the driving gear constitute the third gear set 72.

[0077] Again refer to the attached Figure 5 as well as Figure 7 In order to further adjust the cloth-supporting angle of the opening roller 3, the two ends of the horizontal support rod 710 are rotatably connected with vertical bearing slides 78, and the vertical bearing slides 78 are vertically slidably connected to the side support plate 13. In contrast, a lifting cylinder 79 is fixedly installed on the side support plate 13. By fixing the power output end of the lifting cylinder 79 to the bottom surface of the vertical bearing slide 78 through the support plate, the lifting cylinder 79 can be used to push the opening roller 3 up and down through the clamping support 77, thereby changing its supporting height compared to the side support plate 13, and then cooperating with the fourth servo motor 71 to further change its cloth-supporting angle, thereby increasing the range of change of the cloth-supporting angle and adapting to the needs of production of different types of fabrics.

[0078] Of course, in other embodiments, the vertical bearing slide 78 and the lifting cylinder 79 may not be provided, and the cross brace support rod 710 may be directly rotatably connected to the side support plate 13 through the bearing.

[0079] Please refer to the attached Figure 7 In the present embodiment, in order to maintain the support stability of the opening roller 3 after adjustment, tooth grooves 712 are arranged in an equidistant array on the thin rod end of the movable push rod 76, and a micro cylinder 711 is fixedly installed on the top surface of the clamping support 77. The power output end of the micro cylinder 711 passes through the clamping support 77 and extends into the tooth groove 712. When the opening roller 3 is adjusted, the power output end of the micro cylinder 711 is retracted into its body, so that the movable push rod 76 can slide relative to the clamping support 77, and the power output end of the micro cylinder 711 is reset after the adjustment is completed, thereby limiting the position of the movable push rod 76 relative to the clamping support 77, and will not move arbitrarily during the cloth supporting process, thereby maintaining the support stability.

[0080] Of course, in other embodiments, the tooth groove 712 and the micro cylinder 711 may not be provided, and the selection is made according to actual application requirements.

[0081] See attached Figure 7-Figure 13 In the present embodiment, in order to clean the floating fluff on the unfolded cloth during the process of the opening roller 3 supporting the cloth, the opening roller 3 is a split structure, which includes a bow seat 31, a bow roller 32 nested in the front of the bow seat 31, a filter screen 33 nested in the inside of the bow seat 31, and air suction terminals 34 arranged at both ends of the bow seat 31 for fixing the bow seat 31 and the bow roller 32, and a vacuum suction pump 8 is fixedly installed on the bottom surface of the bottom support box 17, and its suction port is connected to the air suction terminal 34 through a universal hose, and the air between the bow seat 31 and the bow roller 32 can be extracted through the air suction terminal 34 to form a negative pressure, thereby absorbing the floating fluff raised when the cloth passes through the surface of the bow roller 32, and preventing it from drifting into the inside of the equipment and causing equipment failure.

[0082] For details, please refer to the attached Figure 8 The diameter of the bow roller 32 is smaller than the diameter of the bow seat 31, and the two are concentrically arranged. The cross-sections of the bow seat 31 and the bow roller 32 are both arc-shaped. The bow seat 31 is an arc not greater than half a circle, and the bow roller 32 is an arc not less than half a circle. The two complement each other, so that the cloth will only contact the bow roller 32 during movement, and will not contact the bow seat 31. Through the diameter difference between the two, a dust suction gap is formed between the connecting incisions. During the cloth-stretching process, the folded cloth passing through the cloth-stretching roller group 2 is stretched by the bow roller 32 and adhered to the surface of the bow roller 32, so that the fluff of the cloth during the cloth-stretching process is adsorbed into the cavity formed by the bow seat 31 and the bow roller 32 through the dust suction gap, and at the same time, it is filtered by the filter net 33 and stored inside it, and cleaned regularly.

[0083] Please refer to the attached Figure 9-13 In order to facilitate the disassembly of the bow roller 32, mounting through holes 312 are opened at both ends of the bow seat 31, and U-shaped bayonet holes 321 are opened at both ends of the bow roller 32. At the same time, the air extraction terminal 34 is embedded in the mounting through hole 312, and one end of it extending to the inside of the bow seat 31 is integrally formed with a clamp seat 341. A nut seat 342 is threadedly connected to the air extraction terminal 34, and the U-shaped bayonet hole 321 is clamped between the nut seat 342 and the clamp seat 341, and the nut seat 342 can be rotated to reduce the clamp seat 341. 41 and the nut seat 342, so that the bow seat 31 and the bow roller 32 are clamped and fixed at both ends; at the same time, when disassembling, the nut seat 342 can be loosened to increase the gap between the clamp seat 341 and the nut seat 342, so that the bow seat 31 and the bow roller 32 are loosened at both ends, and the bow roller 32 can be directly removed, making it very convenient to disassemble and replace. Compared with the prior art, the structure of directly fixing the opening roller 3 on the frame is convenient for subsequent equipment maintenance.

[0084] Of course, in other embodiments, a traditional integrated opening roller 3 may be provided, and it is not necessary to provide a vacuum pump 8 and related components that match the split structure, and the selection can be made according to actual application requirements.

[0085] Please refer to the attached Figure 7-Figure 8 In the present embodiment, in order to improve the supporting stability of the opening roller 3, auxiliary supporting feet 311 are symmetrically welded at both ends of the bow-shaped seat 31, and the auxiliary supporting feet 311 are movably connected to the two ends of the cross support rod 710 through the clamping support 77, and the auxiliary supporting feet 311 are slidably connected to the top of the clamping support 77, and an electric telescopic rod 713 is also fixedly installed in parallel on the clamping support 77 opposite to it. When the opening roller 3 is adjusted, the electric telescopic rod 713 can be used synchronously to push the auxiliary supporting feet 311 to slide compared with the clamping support 77, thereby achieving synchronous movement with the movable push rod 76, thereby ensuring the support stability of the opening roller 3 while improving its adjustment stability synchronously.

[0086] Of course, in other embodiments, when a conventional integrated width-opening roller 3 is provided, the auxiliary legs 311 may be directly welded to both ends of the integrated width-opening roller 3, or the auxiliary legs 311 and related components may not be provided.

[0087] See attached Figure 3 , Figure 4 as well as Fig.14 One of the cloth feed rollers in the cloth feed roller group 4 is rotatably connected between the two side support plates 13 through a bearing, and the other cloth feed roller is rotatably connected between the two side support plates 13 through a transverse bearing slide 43, and a threaded rotary rod 44 is rotatably connected to the side of the transverse bearing slide 43, and the threaded rotary rod 44 is threadedly connected to the side support plate 13. The transverse bearing slide 43 can be pushed by rotating the threaded rotary rod 44, and then the spacing between the two cloth feed rollers can be adjusted to meet the production requirements of different fabrics.

[0088] Again refer to the attached Figure 3 , Figure 4 as well as Fig.14 A second servo motor 41 is fixedly installed at one end of the cloth feed roller group 4 on the side support plate 13, a driving gear is fixedly installed on its power output end, and two driven gears are fixedly installed on the same end of the two cloth feed rollers, the two are meshed with each other, and at the same time, the driven gear on the non-adjustable cloth feed roller is meshed and connected with the driving gear, so that the second servo motor 41 drives the two cloth feed rollers to rotate in opposite directions through the driving gear and the two driven gears to transmit the cloth, and the driving gear and the two driven gears constitute a second gear group 42.

[0089] See attached Figure 4 as well as Fig.15One of the cloth guide rollers of the auxiliary roller group 5 is rotatably connected between the two side support plates 13 through a bearing support, and the other cloth guide roller is vertically slidably connected between the two side support plates 13 through a sliding bearing seat, and is threadedly connected to the nut support plate fixed on the side support plate 13 through a knob screw rod to adjust the height of the cloth guide roller, thereby changing the gap between the two cloth guide rollers to match different cloth production requirements. At the same time, tension sensors 51 are installed at both ends of the adjustable cloth guide roller to monitor the winding tension, so as to adjust the winding tension according to demand and improve the cloth output quality.

[0090] See attached Figure 4 as well as Fig.16 The winding roller 6 is rotatably connected between the two side support plates 13 through a detachable bearing seat. Oppositely, a third servo motor 61 is fixedly installed on the inner side of one of the side support plates 13, and a driving sprocket is fixedly installed on its power output end. At the same time, a driven sprocket is fixedly installed on the opposite end of the winding roller 6, and a movable sprocket is also arranged between the driven sprocket and the driving sprocket. The movable sprocket is adjustably installed on the side support plate 13, and a chain transmission group 62 can be formed by wrapping a connecting chain around the driven sprocket, the driving sprocket and the movable sprocket. The winding roller 6 is driven to rotate through the chain by the third servo motor 61 to wind the cloth. At the same time, the movable sprocket can be adjusted when necessary to ensure that the chain is tightened on the driven sprocket, the driving sprocket and the movable sprocket to ensure transmission efficiency and transmission stability.

[0091] See attached Figure 1-Figure 17 In order to control the transmission mechanism, a tension control system is also included, which includes a main control module, an information receiving module and a control information output module. By presetting the winding tension range and the corresponding winding speed in the main control module, the signal receiving module can be used to receive the speed feedback information of the first servo motor 21, the second servo motor 41 and the third servo motor 61, and the main control module is used to determine whether the winding speed is within the preset range; when the winding speed is not within the preset range, the control information output module outputs a control signal to adjust the speed of the first servo motor 21, the second servo motor 41 and the third servo motor 61 to adjust the winding speed to the required range; when the winding speed is within the preset range, no control signal is output.

[0092] Secondly, the signal receiving module can simultaneously receive the tension feedback information of the tension sensor 51, and determine whether the winding tension is within the preset range through the main control module; when the winding tension is not within the preset range, the control information output module outputs a control signal to control the fourth servo motor 71 to drive the screw rod 74 to rotate, thereby pushing the nut slide 75 to slide along the predetermined track, thereby using the movable push rod 76 to push the opening roller 3 to move relative to the clamping support 77, and using the cross support rod 710 to rotate relative to the side support plate 13, and synchronously output control signals to the electric telescopic rod 713 and the micro cylinder 711, so that the power output end of the micro cylinder 711 retracts into its body, so that the movable push rod 7 6 can slide relative to the clamping support 77, and at the same time control the electric telescopic rod 713 to push the auxiliary support foot 311 to slide relative to the clamping support 77, thereby achieving synchronous movement with the movable push rod 76, and realizing the adjustment of the cloth supporting angle of the opening roller 3, so that the cloth stretched on the opening roller 3 is tightened or relaxed compared with the cloth feeding roller group 4, the auxiliary roller group 5 and the winding roller 6, thereby changing the winding tension. When the tension feedback information of the tension sensor 51 is within the preset range, the fourth servo motor 71 and the electric telescopic rod 713 are controlled to stop, and the power output end of the micro cylinder 711 is controlled to reset, so as to complete the adjustment of the winding tension; when the winding tension is within the preset range, no control signal is output.

[0093] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A high-speed precision gear transmission mechanism for a jacquard machine, characterized in that: include: Pulling and winding frame (1); A cloth supporting roller group (2), a width opening roller (3), a cloth feeding roller group (4), an auxiliary roller group (5) and a winding roller (6) movably mounted on the pulling and winding frame (1); A motor and a transmission component for driving the cloth supporting roller group (2), the cloth feeding roller group (4) and the winding roller (6) to rotate; and a swinging member (7) for swinging and adjusting the width-opening roller (3); Wherein, tension sensors (51) for monitoring winding tension are installed at both ends of one of the cloth guide rollers of the auxiliary roller group (5); It also includes a tension control system for receiving tension feedback from the tension sensor (51) and using it to control the motor speed and the swing member (7), thereby controlling the winding speed of the cloth-supporting roller group (2), the opening roller (3) and the winding roller (6), and controlling the cloth-supporting angle of the opening roller (3), thereby regulating the winding tension; The opening roller (3) comprises a bow-shaped seat (31), a bow-shaped roller (32) nested in the front of the bow-shaped seat (31), a filter (33) nested in the interior of the bow-shaped seat (31), and air extraction terminals (34) arranged at both ends of the bow-shaped seat (31) for fixing the bow-shaped seat (31) and the bow-shaped roller (32); the diameter of the bow-shaped roller (32) is smaller than the diameter of the bow-shaped seat (31), and dust absorption gaps are formed alternately between the connecting cuts to absorb the cloth fluff during the cloth stretching process; The bow-shaped roller (32) and the bow-shaped seat (31) are arranged concentrically, and the cross-sections of the bow-shaped seat (31) and the bow-shaped roller (32) are both arc-shaped, the arc of the bow-shaped seat (31) is not larger than one-half of a circle, and the arc of the bow-shaped roller (32) is not smaller than one-half of a circle; The pulling and winding frame (1) comprises a rotating base (11), a bottom bracket (12) fixedly mounted on the rotating base (11), and side support plates (13) symmetrically mounted on both ends of the bottom bracket (12); The swinging member (7) comprises a movable push rod (76) fixedly mounted at the bending center of the width-opening roller (3), a cross-bracing rod (710) rotatably connected between the side support plates (13), and a pushing component for pushing the movable push rod (76) to move, and a lifting component for pushing the cross-bracing rod (710) to slide up and down is provided between the cross-bracing rod (710) and the side support plates (13); The bow-shaped seat (31) is provided with mounting through holes (312) at both ends, the bow-shaped roller (32) is provided with U-shaped bayonet holes (321) at both ends, the air extraction terminal (34) is embedded in the mounting through holes (312), and a clamping seat (341) is integrally formed at one end extending into the interior of the bow-shaped seat (31), a nut seat (342) is threadedly connected to the air extraction terminal (34), and the U-shaped bayonet hole (321) is clamped between the nut seat (342) and the clamping seat (341).

2. A high-speed precision gear transmission mechanism for a jacquard machine according to claim 1, characterized in that: The pulling and winding frame (1) further comprises a driving arm (14) fixedly mounted between the tops of the two sets of side support plates (13), and a first support box (15) and a second support box (16) fixedly mounted at both ends of the driving arm (14); a bottom support box (17) is also fixedly mounted on the bottom surface of the second support box (16).

3. A high-speed precision gear transmission mechanism for a jacquard machine according to claim 2, characterized in that: The cloth feed roller group (4), the auxiliary roller group (5) and the winding roller (6) are rotatably connected in sequence between the two groups of side support plates (13); the cloth support roller group (2) is rotatably connected between the first support box (15) and the second support box (16); and the opening roller (3) is arranged in a vertical gap between the cloth support roller group (2) and the cloth feed roller group (4) and the auxiliary roller group (5).

4. The high-speed precision gear transmission mechanism of a jacquard machine according to claim 1, characterized in that: The motors include a first servo motor (21), a second servo motor (41) and a third servo motor (61); The transmission component comprises a first gear group (22) transmission-connected between the cloth supporting roller group (2) and the first servo motor (21), a second gear group (42) transmission-connected between the cloth feeding roller group (4) and the second servo motor (41), and a chain transmission group (62) transmission-connected between the winding roller (6) and the third servo motor (61).

5. The high-speed precision gear transmission mechanism of a jacquard machine according to claim 2, characterized in that: A clamping support (77) is fixedly clamped on the cross brace support rod (710), and a thin rod end of the movable push rod (76) is slidably embedded in the top end of the clamping support (77).

6. A high-speed precision gear transmission mechanism for a jacquard machine according to claim 5, characterized in that: The pushing component comprises a support frame (73) fixedly mounted inside the bottom support box (17), a screw rod (74) vertically rotatably connected to the support frame (73), a nut slide seat (75) vertically slidably connected to the inside of the support frame (73), and a fourth servo motor (71) fixedly mounted on the bottom surface of the bottom support box (17), the nut slide seat (75) being threadedly connected to the screw rod (74), the fourth servo motor (71) being transmission-connected to the screw rod (74) via a third gear set (72), and the thin rod end of the movable push rod (76) being rotationally connected to the nut slide seat (75); The lifting component comprises a vertical bearing slide (78) vertically slidably connected to the side support plate (13) and an upper lifting cylinder (79) fixedly mounted on the side support plate (13); a power output end of the lifting cylinder (79) is fixedly mounted on the bottom surface of the vertical bearing slide (78) via a support plate.

7. The high-speed precision gear transmission mechanism of a jacquard machine according to claim 5, characterized in that: The thin rod end of the movable push rod (76) is provided with tooth grooves (712) in an equidistant array, and a micro cylinder (711) is fixedly mounted on the top surface of the clamping support (77), and the power output end of the micro cylinder (711) passes through the clamping support (77) and extends into the tooth groove (712).

8. The high-speed precision gear transmission mechanism of a jacquard machine according to claim 1, characterized in that: It also comprises a vacuum pump (8), the suction port of which is connected to the suction terminal (34) via a universal hose, so as to extract the air between the bow seat (31) and the bow roller (32) via the suction terminal (34).

Images