A water-jet loom heald lifting mechanism and water-jet loom

Abstract

The application discloses a water-jet loom heald lifting foot mechanism and a water-jet loom, and relates to the field of water-jet looms.The water-jet loom heald lifting foot mechanism comprises a support.The application has the advantages that the motor does not need to be reversed, does not need to be decelerated when switching between forward rotation and reverse rotation, and does not need to use a servo motor, thereby reducing the cost and the probability of damage to the mechanism, ensuring the textile efficiency, accurately adjusting the time of heald frame resetting, avoiding repeated measurement and debugging of the shedding cycle, avoiding use defects, and arbitrarily adjusting the stroke length of the heald frame according to the requirements of the fabric, so as to adapt to different fabric requirements, avoid the height and length limitations of the cam and the transmission rod, make the stroke adjustment of the heald frame simple, avoid the breakage of warp caused by the heald frame, make the surface tension applying mechanism of the warp and the heald lifting process adaptively matched, thereby maintaining the heald lifting efficiency and the weaving efficiency, avoiding deceleration, reducing the risk of warp breakage, and ensuring the quality of the fabric.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water-jet looms, in particular to a heald lifting mechanism of a water-jet loom and a water-jet loom. BACKGROUND

[0002] The heald lifting mechanism of a water-jet loom is a core component for controlling the lifting movement of a heald frame, which is directly related to the opening law of warp yarns and weaving efficiency. A water-jet loom is a shuttleless loom that uses high-pressure water flow to guide weft yarns, and has the characteristics of high speed, energy saving, and low noise, and is suitable for weaving hydrophobic fibers.

[0003] The heald lifting mechanism controls the lifting of the heald frame to form a shed with layers of warp yarns. The shed height and opening time need to be synchronized with the water flow injection to ensure the smooth passage of weft yarns. For thin fabrics, the shed angle can be reduced to reduce the tension of the warp yarns, and the speed can be increased by 10-15% to increase the weaving efficiency. For thick fabrics, the angle needs to be increased to ensure the passage of weft yarns, but the speed needs to be reduced to avoid broken warp yarns, thereby reducing the weaving efficiency. In summary, the heald lifting mechanism needs to adjust the stroke length of the heald frame according to the actual situation to meet the needs of different fabrics.

[0004] The existing heald lifting mechanism can be roughly divided into: screw and nut lifting mechanism, parallelogram linkage mechanism, and gear and rack transmission mechanism. The above-mentioned mechanisms all need a motor to drive forward and reset in reverse, so that the motor needs to be decelerated after forward rotation and completed in reverse to complete an opening cycle. In this process, a servo motor or other controllable motor is needed, which increases the cost of the motor. At the same time, the internal structure of the motor is complex and has low durability. The process of weaving needs the motor to repeat the above process at high speed, which further increases the risk of motor damage and further reduces the service life and cost. In the above process, the reset of the heald frame is mainly achieved by the rebound of the spring, but the rebound of the spring has a certain hysteresis inertia, which makes the reset of the heald frame unable to respond immediately, making the reset time control difficult. It is necessary to repeatedly measure and debug the opening cycle to meet the needs of the water-jet loom, which has defects in use.

[0005] After searching, Chinese patent application CN207295060U discloses a heald lifting mechanism of a water-jet loom and a water-jet loom, which can avoid wear and tear between connecting parts, but it cannot arbitrarily adjust the stroke length of the heald frame according to the needs of the fabric, and cannot solve the above problems. At the same time, the lifting process of the heald frame will exert pressure on the warp yarns, further increasing the surface tension of the warp yarns, thereby causing the above-mentioned broken warp yarns problem, making the warp yarn surface tension exerting mechanism unable to adapt to the heald lifting process, thereby affecting the heald lifting efficiency and weaving efficiency, and increasing the risk of broken warp yarns, affecting the quality of the fabric. SUMMARY

[0006] The present application aims to provide a water-jet loom heald lifting mechanism and a water-jet loom.

[0007] The present application provides the following technical scheme: a water-jet loom heald lifting mechanism, comprising a support, a first fixing tool and a second fixing tool are fixed on the side wall of the support, a lifting rotating rod and a falling rotating rod are rotatably connected to the side wall of the second fixing tool, an upper fixing block is sleeved on the outer surface of the lifting rotating rod, a lower fixing block is sleeved on the outer surface of the falling rotating rod, and one end of a first transmission belt is fixed to the outer surfaces of the lifting rotating rod and the falling rotating rod, a speed regulating mechanism is installed at the other end of the first transmission belt, the speed regulating mechanism comprises a first rotating shaft, an embedding cavity is formed in the first rotating shaft, a screw rod is sleeved and engaged on the end surface of the first rotating shaft, an embedding block is rotatably connected to the end surface of the screw rod, a controllable gear is sleeved on the outer surface of the first rotating shaft, a plurality of gear stages are meshingly connected to the outer surface of the controllable gear, a second rotating shaft is fixed to the central axis of the plurality of gear stages, a winding roller is fixed to the end surface of the second rotating shaft, two groups of winding rollers are provided, one group of winding rollers is rotatably sleeved with the upper fixing block, the other group of winding rollers is rotatably sleeved with the lower fixing block, a first steel wire rope is sleeved on the winding roller in the upper fixing block, a second steel wire rope is sleeved on the winding roller in the lower fixing block, a folding wheel is slidably sleeved on the outer surface of the second steel wire rope, a heald frame is fixed to the end surface of the second steel wire rope, and the end of the first steel wire rope is fixed to the top surface of the heald frame.

[0008] As a further scheme of the present application: the support is arranged in a U shape, the first fixing tool is rotatably sleeved with the lifting rotating rod and the falling rotating rod, and the upper fixing block and the lower fixing block are both provided in two groups, one group of the upper fixing block and the lower fixing block is fixed to the side wall of the first fixing tool, and the other group of the upper fixing block and the lower fixing block is fixed to the side wall of the second fixing tool.

[0009] As a further scheme of the present application: the first rotating shaft is fixed to the end of the first transmission belt, the embedding block is embeddedly connected with the embedding cavity, and the embedding block is embeddedly connected with the inner surface of the controllable gear, the diameter of the controllable gear is sequentially reduced, the diameter of the plurality of gear stages is sequentially increased, and the first transmission belt is provided in two groups, one group of the first transmission belt is rotatably sleeved with the upper fixing block, and the other group of the first transmission belt is rotatably sleeved with the lower fixing block.

[0010] As a further scheme of the present application: the first fixed tool is provided with an electric motor, and a fixed frame is fixed to the side wall of the first fixed tool, both ends of the fixed frame are fixed with limiting cylinders, two limiting cylinders are arranged, and a limiting groove is formed between the two limiting cylinders, the output end of the electric motor is fixed with a first transmission shaft, a sliding groove is formed in the outer surface of the first transmission shaft, one end of a sliding rod is slidably connected in the sliding groove, the other end of the sliding rod is fixed with a sleeve ring, one end of a connecting rod is slidably connected to the outer surface of the sleeve ring, the other end of the connecting rod is slidably connected with a driving gear, the outer surface of the driving gear is meshed with a driven gear, the outer surface of the driven gear is meshed with a transmission gear, the end of the return rotating rod is fixed with a driven gear ring, the outer surface of the first transmission shaft is fixed with a driving roller, one end of a track is slidably connected to the outer surface of the driving roller, the other end of the track is slidably connected with a driven roller, and the central axis of the driven roller is fixed with a second transmission shaft.

[0011] As a further scheme of the present application: the second transmission shaft is connected with the connecting rod, and the end of the second transmission shaft is provided in a polygonal shape, the end of the second transmission shaft is embeddedly connected with the driving gear, the limiting groove is a single-turn spiral gap with a first end connected to a second end, and the sleeve ring is slidably connected with the limiting cylinder.

[0012] As a further scheme of the present application: a return spring is fixed between the sliding rod and the sliding groove, the driven gear is fixed with the return rotating rod, the transmission gear is fixed with the lifting rotating rod, the thickness of the driven gear ring is 3 times the thickness of the driven gear, the gap thickness between the driven gear ring and the driven gear is the same as the thickness of the driven gear, the radius of the driving roller is 4 times the radius of the driven roller, the pitch of the limiting groove is 4 times the thickness of the driven gear, the circumference of the driven gear ring is 3 times the circumference of the driven gear, and the first transmission shaft is sleeved with the limiting cylinder.

[0013] A water jet loom: comprising a machine body, the top surface of the machine body is fixed with a support, the top end of the machine body is fixed with a water baffle, the machine body is rotatably connected with a positioning roller, and the side wall of the machine body is fixed with a clamping block, the clamping block is rotatably connected with a first screw rod, the top surface of the first screw rod is fixed with one end of a second transmission belt, the other end of the second transmission belt is connected with a speed regulation mechanism, the second rotating shaft of the speed regulation mechanism is fixed with one end of a third transmission belt, the other end of the third transmission belt is fixed with a second screw rod, the outer surface of the second screw rod is meshingly sleeved with a sliding block, and the side wall of the sliding block is rotatably connected with a pressure roller.

[0014] As a further scheme of the present application: the sliding block is in sliding connection with the side wall of the body, the speed regulating mechanism is provided with a plurality of, the second transmission belt is fixedly connected with the first rotating shaft, the first screw rod is in meshing sleeve connection with the side wall of the heald frame, the second screw rod and the speed regulating mechanism are both in rotary connection with the side wall of the body, the inner bottom surface of the body is in rotary connection with the deflection wheel, and the clamping block is in embedded connection with the heald frame.

[0015] By adopting the above technical scheme: compared with the prior art, the present application has the beneficial effects that:

[0016] The connecting rod pushes the driving gear to translate, and the rotation of the driving gear is not affected, so that the driving gear can translate while rotating, and it is further explained that the radius of the driving roller is 4 times the radius of the driven roller, the driving roller and the driven roller are driven by the track, so that the linear velocities of the two are equal, according to the linear velocity formula It can be known that the angular velocity of the driving roller is 1 / 4 times the angular velocity of the driven roller, so that the first transmission shaft and the driving roller rotate 1 circle, the driven roller and the driving gear rotate 4 circles, the thickness of the driven gear ring is 3 times the thickness of the driven gear, the gap thickness between the driven gear ring and the driven gear is the same as the thickness of the driven gear, and the pitch of the limiting groove is 4 times the thickness of the driven gear, so that when the first transmission shaft rotates 1 / 4 circle, the slide rod and the sleeve ring translate the thickness of the driven gear, so that the driving gear translates the thickness of the driven gear and rotates 1 circle, at this time, the driving gear and the driven gear are separated, and when the first transmission shaft continues to rotate 1 / 4 circle, the driving gear continues to translate the thickness of the driven gear and is in meshing connection with the driven gear ring, at this time, the driving gear rotates 1 circle and the driven gear ring rotates 1 / 3 circle, so that after the subsequent 1 / 2 circle, i.e., 2 1 / 4 circles, of the first transmission shaft, the driven gear ring also rotates 1 circle, according to the above process, the heald frame is lifted to form a shed when the driven gear rotates, and when the driven gear ring rotates, the falling rotating rod rotates forward, indirectly tightening the second steel wire rope, so that the second steel wire rope pulls the heald frame to descend under the guidance of the deflection wheel, at the same time, the lifting rotating rod rotates backward, the first steel wire rope is loosened to bind the heald frame, and the purpose of resetting the heald frame is achieved, without reversing the motor, a shedding cycle can be completed, so that the motor does not need to be decelerated when switching between forward rotation and reverse rotation, and a servo motor is not needed, which reduces the cost and the probability of damage of the mechanism, guarantees the textile efficiency, and can accurately reset the time of the heald frame, without repeatedly measuring and adjusting the shedding cycle, and the use defect is avoided.

[0017] The present application drives the controllable gear of specific diameter to rotate through the first rotating shaft, and the multi-stage gear meshes with the controllable gear, so that the second rotating shaft on the multi-stage gear rotates, and then the winding roller on the second rotating shaft rotates, so as to achieve the purpose of moving the heald frame. When it is needed to increase the moving distance of the heald frame, the rotary screw rod is rotated, so that the screw rod gradually separates from the first rotating shaft, and the insert block on the screw rod moves to the controllable gear with larger diameter and is connected with the controllable gear. According to the linear velocity formula, the angular velocity of the first rotating shaft is unchanged when the output power of the motor is unchanged, and the increase of the radius of the controllable gear increases the linear velocity of the controllable gear. The multi-stage gear corresponding to the controllable gear with increased radius has a reduced radius, and the linear velocity of the multi-stage gear is increased. According to the angular velocity formula , it can be known that the angular velocity of the multi-stage gear and the second rotating shaft is increased. Therefore, when the first transmission belt and the first rotating shaft rotate one circle, the number of rotations of the second rotating shaft and the winding roller is increased, and thus the moving distance of the heald frame driven by the first steel wire rope and the second steel wire rope is increased. Conversely, the above adjustment operation is repeated in reverse, and the moving distance of the heald frame is reduced. Therefore, the stroke length of the heald frame can be adjusted arbitrarily according to the requirements of the fabric, so as to adapt to different fabric requirements, avoid the height and length limitations of the cam and the transmission rod, and make the stroke adjustment of the heald frame simple and convenient without the need of disassembling and replacing parts.

[0018] The first screw rod is driven to rotate by the lifting of the heald frame, so that the first rotating shaft of the speed regulation mechanism is driven to rotate by the second transmission belt on the first screw rod. According to the above process, the second rotating shaft can rotate at a certain ratio, so that the third transmission belt on the second rotating shaft drives the second screw rod to rotate, so that the second screw rod drives the sliding block to move. The sliding block is connected with the machine body in sliding mode, so that the sliding block cannot rotate, and then the sliding block is lifted and lowered under the driving of the second screw rod. The press roller on the sliding block rises with the lifting of the heald frame and descends with the descent of the heald frame, and the lifting and descending distances are controllable. When the press roller descends, the distance between the press roller and the positioning roller is rapidly broken, so as to increase the extrusion on the warp, so that the surface tension of the warp is restored to a predetermined value. When the press roller rises, the extrusion on the warp is reduced, so that the surface tension of the warp is reduced, so as to cope with the increase of the warp tension when the heald frame rises, avoid the broken warp caused by the heald frame, make the warp surface tension applying mechanism adapt to the lifting heald process, so as to maintain the lifting heald efficiency and the weaving efficiency, without the need of reducing the speed, further reduce the risk of broken warp, and ensure the quality of the fabric. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic diagram of the lifting heald mechanism of the water jet loom and the water jet loom of the present application;

[0020] Figure 2 It is a lifting heald mechanism schematic diagram of the water jet loom of the present application;

[0021] Figure 3 It is Figure 1Enlarged view of the structure of part A;

[0022] Figure 4 For Figure 2 Enlarged view of the structure of part B;

[0023] Figure 5 For the schematic diagram of the motor structure of the present application;

[0024] Figure 6 For the schematic diagram of the limiting cylinder structure of the present application;

[0025] Figure 7 For Figure 6 Enlarged view of the structure of part C;

[0026] Figure 8 For the schematic diagram of the machine body structure of the present application;

[0027] Figure 9 For the schematic diagram of the slider structure of the present application;

[0028] Figure 10 For the schematic diagram of the upper fixed block structure of the present application;

[0029] In the figure: 1, support; 2, first fixed tool; 3, second fixed tool; 4, lifting rotating rod; 5, falling rotating rod; 6, upper fixed block; 7, lower fixed block; 8, first transmission belt; 9, speed regulating mechanism; 91, first rotating shaft; 92, embedding cavity; 93, screw rod; 94, embedding block; 95, controllable gear; 96, multi-stage gear; 97, second rotating shaft; 10, winding roller; 11, first steel wire rope; 12, second steel wire rope; 13, folding wheel; 14, heald frame; 15, motor; 16, fixed frame; 17, limiting cylinder; 18, limiting groove; 19, first transmission shaft; 20, sliding groove; 21, sliding rod; 22, sleeve ring; 23, connecting rod; 24, driving gear; 25, driven gear; 26, driven gear ring; 27, transmission gear; 28, driving roller; 29, track; 30, driven roller; 31, second transmission shaft; 32, machine body; 33, water baffle; 34, positioning roller; 35, clamping block; 36, first screw rod; 37, second transmission belt; 38, third transmission belt; 39, second screw rod; 40, slider; 41, compression roller. DETAILED DESCRIPTION

[0030] The specific embodiments of the present application will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0031] Example 1, please refer to Figures 1-3 , Figure 5 andFigure 10 The application provides a technical scheme: a lifting heald frame mechanism of a water-jet loom, which comprises a support 1, a first fixing tool 2 and a second fixing tool 3 are fixedly connected to the side wall of the support 1, a lifting rotating rod 4 and a falling rotating rod 5 are rotatably connected to the side wall of the second fixing tool 3, an upper fixing block 6 is sleeved on the outer surface of the lifting rotating rod 4, a lower fixing block 7 is sleeved on the outer surface of the falling rotating rod 5, and one end of a first transmission belt 8 is fixedly connected to the outer surfaces of the lifting rotating rod 4 and the falling rotating rod 5, a speed regulating mechanism 9 is installed at the other end of the first transmission belt 8, the speed regulating mechanism 9 comprises a first rotating shaft 91, an embedding cavity 92 is formed in the first rotating shaft 91, a screw rod 93 is sleeved and engaged on the end surface of the first rotating shaft 91, an embedding block 94 is rotatably connected to the end surface of the screw rod 93, a controllable gear 95 is sleeved on the outer surface of the first rotating shaft 91, a plurality of gear wheels 96 are engagedly connected to the outer surface of the controllable gear 95, a second rotating shaft 97 is fixedly connected to the central axis of the plurality of gear wheels 96, and winding rollers 10 are fixedly connected to the end surface of the second rotating shaft 97, the winding rollers 10 are provided in two groups, one group of the winding rollers 10 is rotatably sleeved with the upper fixing block 6, the other group of the winding rollers 10 is rotatably sleeved with the lower fixing block 7, a first steel wire rope 11 is sleeved on the winding roller 10 in the upper fixing block 6, a second steel wire rope 12 is sleeved on the winding roller 10 in the lower fixing block 7, a folding wheel 13 is slidably sleeved on the outer surface of the second steel wire rope 12, a heald frame 14 is fixedly connected to the end surface of the second steel wire rope 12, and the end of the first steel wire rope 11 is fixedly connected to the top surface of the heald frame 14.

[0032] Please refer to Figure 2 、 Figure 3 and Figure 5 , the support 1 is arranged in a U shape, the first fixing tool 2 is rotatably sleeved with the lifting rotating rod 4 and the falling rotating rod 5, the upper fixing block 6 and the lower fixing block 7 are provided in two groups, one group of the upper fixing block 6 and the lower fixing block 7 is fixedly connected to the side wall of the first fixing tool 2, and the other group of the upper fixing block 6 and the lower fixing block 7 is fixedly connected to the side wall of the second fixing tool 3.

[0033] Please refer to Figure 2 、 Figure 3 and Figure 10 , the first rotating shaft 91 is fixedly connected to the end of the first transmission belt 8, the embedding block 94 is embeddedly connected with the embedding cavity 92, the embedding block 94 is embeddedly connected with the inner surface of the controllable gear 95, the diameter of the controllable gear 95 is sequentially reduced, the diameter of the plurality of gear wheels 96 is sequentially increased, the first transmission belt 8 is provided in two groups, one group of the first transmission belt 8 is rotatably sleeved with the upper fixing block 6, and the other group of the first transmission belt 8 is rotatably sleeved with the lower fixing block 7.

[0034] Specifically, in the process of rotating the first transmission shaft 19, the chute 20 on the first transmission shaft 19 drives the sliding rod 21 to rotate synchronously, and the sliding rod 21 is limited by the limiting groove 18 formed by the gap between the two limiting cylinders 17, and the limiting cylinder 17 is fixedly connected with the fixed frame 16, so that the limiting cylinder 17 is fixed, and the limiting groove 18 is indirectly fixed. Therefore, when the sliding rod 21 extrudes the arc-shaped side wall of the limiting groove 18, the sliding rod 21 will move along the limiting groove 18, so that the sliding rod 21 rotates and translates at the same time, until the sliding rod 21 rotates a circle, the blocking of the limiting groove 18 to the sliding rod 21 is removed, so that the sliding rod 21 resets under the rebound of the reset spring, so that the sliding rod 21 will translate a specific distance every time it rotates a circle, and the movement of the sliding rod 21 drives the sleeve ring 22 to move, so that the sleeve ring 22 rotates and translates with the sliding rod 21, and then the connecting rod 23 on the sleeve ring 22 translates under the guidance of the second transmission shaft 31, and the connecting rod 23 is slidingly connected with the end surface of the driving gear 24, so that the connecting rod 23 pushes the driving gear 24 to translate, and does not affect the rotation of the driving gear 24, so that the driving gear 24 can rotate and translate at the same time. It needs to be further explained that the radius of the driving roller 28 is 4 times the radius of the driven roller 30, and the driving roller 28 and the driven roller 30 are connected through the track 29, so that the linear velocities of the two are equal. According to the linear velocity formula It can be seen that the angular velocity of the driving roller 28 is 1 / 4 times the angular velocity of the driven roller 30, so that when the first transmission shaft 19 and the driving roller 28 rotate one circle, the driven roller 30 and the driving gear 24 rotate four circles, the thickness of the driven gear ring 26 is three times the thickness of the driven gear 25, the gap thickness between the driven gear ring 26 and the driven gear 25 is the same as the thickness of the driven gear 25, and the pitch of the limiting groove 18 is four times the thickness of the driven gear 25, so that when the first transmission shaft 19 rotates 1 / 4 circle, the slide rod 21 and the collar 22 translate one thickness of the driven gear 25, so that the driving gear 24 translates one thickness of the driven gear 25 and rotates one circle with the driven gear 25, at this time the driving gear 24 and the driven gear 25 are separated, and when the first transmission shaft 19 continues to rotate 1 / 4 circle, the driving gear 24 continues to translate one thickness of the driven gear 25 and is connected with the driven gear ring 26, at this time the driving gear 24 rotates one circle and the driven gear ring 26 rotates 1 / 3 circle, so that after the first transmission shaft 19 rotates half a circle, i.e. two 1 / 4 circles, the driven gear ring 26 also rotates one circle. According to the above process, when the driven gear 25 rotates, the shed is formed on the heald frame 14, when the driven gear ring 26 rotates, the lifting rotating lever 5 rotates forward, which indirectly tightens the second steel wire rope 12, so that the second steel wire rope 12 pulls down the heald frame 14 under the guidance of the folding wheel 13, at the same time, the lowering rotating lever 4 rotates backward, the first steel wire rope 11 loosens the restraint on the heald frame 14, and the purpose of resetting the heald frame 14 is achieved. Without reversing the motor 15, one shedding cycle can also be completed, so that the speed is not reduced when switching between forward and reverse rotation, and a servo motor is not needed, which reduces the cost and the probability of damage to the mechanism, ensures the efficiency of textile, and can accurately reset the time of the heald frame 14 without repeatedly measuring and adjusting the shedding cycle, avoiding the use of defects.

[0035] Embodiment 2, please refer to Figure 1 、 Figure 2 and Figures 4-7The application provides a technical scheme: a water-jet loom heald lifting mechanism, a motor 15 is installed on a first fixing tool 2, a fixing frame 16 is fixedly connected to the side wall of the first fixing tool 2, limiting cylinders 17 are fixedly connected to the two ends of the fixing frame 16, two limiting cylinders 17 are arranged, a limiting groove 18 is formed between the two limiting cylinders 17, a first transmission shaft 19 is fixedly connected to the output end of the motor 15, a sliding groove 20 is formed in the outer surface of the first transmission shaft 19, one end of a sliding rod 21 is slidably connected in the sliding groove 20, a sleeve ring 22 is fixedly connected to the other end of the sliding rod 21, one end of a connecting rod 23 is slidably connected to the outer surface of the sleeve ring 22, a driving gear 24 is slidably connected to the other end of the connecting rod 23, a driven gear 25 is meshingly connected to the outer surface of the driving gear 24, a transmission gear 27 is meshingly connected to the outer surface of the driven gear 25, a driven gear ring 26 is fixedly connected to the end of a back-falling rotating rod 5, a driving roller 28 is fixedly connected to the outer surface of the first transmission shaft 19, one end of a track 29 is slidably connected to the outer surface of the driving roller 28, the other end of the track 29 is slidably connected to a driven roller 30, and a second transmission shaft 31 is fixedly connected to the central axis of the driven roller 30.

[0036] Please refer to Figures 5-7 The second transmission shaft 31 is connected with the connecting rod 23 in a sleeved mode, the end of the second transmission shaft 31 is provided in a multi-prism shape, the end of the second transmission shaft 31 is embeddedly connected with the driving gear 24 in a sleeved mode, the limiting groove 18 is a single-turn spiral gap with a first end and a second end communicated, and the sleeve ring 22 is slidably connected with the limiting cylinder 17 in a sleeved mode.

[0037] Please refer to Figures 5-7 A reset spring is fixedly connected between the sliding rod 21 and the sliding groove 20, the driven gear 25 is fixedly connected with the back-falling rotating rod 5, the transmission gear 27 is fixedly connected with the lifting rotating rod 4, the thickness of the driven gear ring 26 is 3 times the thickness of the driven gear 25, the gap thickness between the driven gear ring 26 and the driven gear 25 is the same as the thickness of the driven gear 25, the radius of the driving roller 28 is 4 times the radius of the driven roller 30, the pitch of the limiting groove 18 is 4 times the thickness of the driven gear 25, the circumference of the driven gear ring 26 is 3 times the circumference of the driven gear 25, and the first transmission shaft 19 is sleeved with the limiting cylinder 17.

[0038] Specifically, in the process of rotating the first transmission belt 8, the first rotating shaft 91 at the end of the first transmission belt 8 rotates, and the first rotating shaft 91 is connected with the embedded block 94 through the embedded cavity 92, and the embedded block 94 is connected with the controllable gear 95 with a specific diameter, so that the first rotating shaft 91 and the controllable gear 95 with a specific diameter remain relatively static, that is, synchronous rotation, and the remaining controllable gears 95 are not affected by the first rotating shaft 91, and when the controllable gear 95 with a specific diameter is driven to rotate by the first rotating shaft 91, the multi-stage gear 96 engaged with the controllable gear 95 rotates, so that the second rotating shaft 97 on the multi-stage gear 96 rotates, and then the winding roller 10 on the second rotating shaft 97 rotates, so as to achieve the purpose of moving the heald frame 14. When it is necessary to increase the moving distance of the heald frame 14, the rotary screw rod 93 is rotated, so that the screw rod 93 gradually separates from the first rotating shaft 91, and the embedded block 94 on the screw rod 93 moves to the controllable gear 95 with a larger diameter and is connected with the controllable gear 95. According to the above linear speed formula, when the output power of the motor 15 is unchanged, the angular velocity of the first rotating shaft 91 is unchanged, and the increase of the radius of the controllable gear 95 will increase the linear speed thereof, and the radius of the multi-stage gear 96 corresponding to the controllable gear 95 with an increased radius is reduced, and the linear speed of the multi-stage gear 96 is increased. According to the angular velocity formula , it can be known that the angular velocity of the multi-stage gear 96 and the second rotating shaft 97 is increased, so that when the first transmission belt 8 and the first rotating shaft 91 rotate one circle, the number of rotations of the second rotating shaft 97 and the winding roller 10 is increased, and thus the moving distance of the first steel wire rope 11 and the second steel wire rope 12 to drive the heald frame 14 is increased. Conversely, the above adjustment operation is repeated in reverse, and the moving distance of the heald frame 14 is reduced. Therefore, the stroke length of the heald frame 14 can be adjusted arbitrarily according to the requirements of the fabric, so as to adapt to different fabric requirements, avoid the height and length limitations of the cam and the transmission rod, and make the stroke adjustment of the heald frame 14 simple and convenient without the need of disassembling and replacing parts.

[0039] Embodiment 3, please refer to Figure 1 、 Figure 8 and Figure 9 , the present application provides a technical solution: a water jet loom, comprising a machine body 32, the top surface of the machine body 32 is fixedly connected with a support 1, the top end of the machine body 32 is fixedly connected with a water baffle 33, the machine body 32 is rotatably connected with a positioning roller 34, and the side wall of the machine body 32 is fixedly connected with a clamping block 35, the first screw rod 36 is rotatably connected between the clamping blocks 35, one end of the second transmission belt 37 is fixedly connected with the top surface of the first screw rod 36, the other end of the second transmission belt 37 is connected with a speed regulation mechanism 9, one end of the third transmission belt 38 is fixedly connected with the second rotating shaft 97 of the speed regulation mechanism 9, the other end of the third transmission belt 38 is fixedly connected with a second screw rod 39, the outer surface of the second screw rod 39 is sleeved with a sliding block 40 in engagement, and the side wall of the sliding block 40 is rotatably connected with a press roller 41.

[0040] Please refer to Figure 1 、 Figure 3 ,Figure 8 and Figure 9 The slide block 40 is in sliding connection with the side wall of the body 32, the speed regulating mechanism 9 is provided with a plurality of, the second transmission belt 37 is fixedly connected with the first rotating shaft 91, the first screw rod 36 is in meshing sleeve connection with the side wall of the heald frame 14, the second screw rod 39 and the speed regulating mechanism 9 are both in rotating connection with the side wall of the body 32, the inner bottom surface of the body 32 is in rotating connection with the folding wheel 13, and the clamping block 35 is in embedded connection with the heald frame 14.

[0041] Specifically, in the process of lifting the heald frame 14, the side wall of the heald frame 14 is in meshing sleeve connection with the first screw rod 36, so that the lifting of the heald frame 14 can drive the first screw rod 36 to rotate, so that the second transmission belt 37 on the first screw rod 36 drives the first rotating shaft 91 of the speed regulating mechanism 9 to rotate, according to the above process, the second rotating shaft 97 can rotate at a certain ratio, so that the third transmission belt 38 on the second rotating shaft 97 drives the second screw rod 39 to rotate, so that the second screw rod 39 drives the slide block 40 to move, and the slide block 40 is in sliding connection with the body 32, so that the slide block 40 cannot rotate, and then the slide block 40 is lifted and lowered under the drive of the second screw rod 39, so that the press roller 41 on the slide block 40 rises with the heald frame 14 and descends with the heald frame 14, and the lifting and descending distances are controllable, when the press roller 41 descends, the distance between the press roller 41 and the positioning roller 34 is suddenly broken, thereby increasing the extrusion on the warp, so that the surface tension of the warp returns to a predetermined value, when the press roller 41 rises, the extrusion on the warp decreases, so that the surface tension of the warp decreases, so as to cope with the increase of the warp tension when the heald frame 14 rises, avoid the broken warp caused by the heald frame 14, so that the warp surface tension applying mechanism and the heald lifting process are adaptively matched, so that the heald lifting efficiency and the weaving efficiency can be maintained, without the need of deceleration, and the risk of broken warp is also reduced, so as to ensure the quality of the fabric.

[0042] The working principle and use process of the present application are as follows: in the process of forming a shed by lifting the heald frame, the motor 15 on the first fixed tool 2 is started, so that the motor 15 drives the driving roller 28 to rotate through the first transmission shaft 19, so that the track 29 on the driving roller 28 drives the driven roller 30 to rotate, so that the second transmission shaft 31 on the driven roller 30 drives the driving gear 24 to rotate, so that the driven gear 25 engaged with the driving gear 24 drives the back-and-forth rotating rod 5 to rotate back, so that the winding roller 10 in the lower fixed block 7 is driven to rotate back by the first transmission belt 8 on the back-and-forth rotating rod 5, so that the second steel wire rope 12 on the winding roller 10 is loosened, so that the length of the second steel wire rope 12 extending from the winding roller 10 is lengthened, so that the limitation of the heald frame 14 by the second steel wire rope 12 is removed, at the same time, the driven gear 25 on the back-and-forth rotating rod 5 drives the transmission gear 27 and the lifting rotating rod 4 to rotate forward, so that the winding roller 10 in the upper fixed block 6 is driven to rotate forward by the first transmission belt 8 on the lifting rotating rod 4, so that the first steel wire rope 11 on the winding roller 10 is further curled, so that the first steel wire rope 11 pulls the heald frame 14 to rise, so that the warp is layered to form a shed.

[0043] In the process of rotating the first transmission shaft 19, the chute 20 on the first transmission shaft 19 drives the sliding rod 21 to rotate synchronously, and the sliding rod 21 is limited by the limiting groove 18 formed by the gap between the two limiting cylinders 17. The limiting cylinders 17 are fixedly connected with the fixed frame 16, so that the limiting cylinders 17 are fixed, and the limiting groove 18 is indirectly fixed. Therefore, when the sliding rod 21 extrudes the arc-shaped side wall of the limiting groove 18, the sliding rod 21 moves along the limiting groove 18, so that the sliding rod 21 rotates and translates at the same time. Until the sliding rod 21 rotates a circle, the blocking of the limiting groove 18 to the sliding rod 21 is removed, so that the sliding rod 21 is reset under the rebound of the reset spring, so that the sliding rod 21 translates a specific distance every rotation. The movement of the sliding rod 21 drives the sleeve ring 22 to move, so that the sleeve ring 22 rotates and translates with the sliding rod 21 at the same time, and then the connecting rod 23 on the sleeve ring 22 translates under the guidance of the second transmission shaft 31. The connecting rod 23 is slidingly connected with the end surface of the driving gear 24, so that the connecting rod 23 pushes the driving gear 24 to translate, and does not affect the rotation of the driving gear 24. Therefore, the driving gear 24 can rotate and translate at the same time. It needs to be further explained that the radius of the driving roller 28 is 4 times the radius of the driven roller 30. The driving roller 28 and the driven roller 30 are connected through the track 29, so that the linear velocities of the two are equal. According to the linear velocity formula It can be known that the angular velocity of the driving roller 28 is 1 / 4 times of the angular velocity of the driven roller 30, so that the first transmission shaft 19 and the driving roller 28 rotate 1 circle, the driven roller 30 and the driving gear 24 rotate 4 circles, the thickness of the driven gear ring 26 is 3 times of the thickness of the driven gear 25, the gap thickness between the driven gear ring 26 and the driven gear 25 is the same as the thickness of the driven gear 25, and the pitch of the limiting groove 18 is 4 times of the thickness of the driven gear 25, so that when the first transmission shaft 19 rotates 1 / 4 circle, the slide rod 21 and the sleeve ring 22 translate a thickness of the driven gear 25, so that the driving gear 24 translates a thickness of the driven gear 25 and rotates a circle with the driven gear 25, at this time, the driving gear 24 and the driven gear 25 are separated, and when the first transmission shaft 19 continues to rotate 1 / 4 circle, the driving gear 24 continues to translate a thickness of the driven gear 25 and is connected with the driven gear ring 26, at this time, the driving gear 24 rotates a circle and the driven gear ring 26 rotates 1 / 3 circle, so that after the first transmission shaft 19 rotates a subsequent half circle, i.e. 2 times of 1 / 4 circle, the driven gear ring 26 also rotates a circle, according to the above process, when the driven gear 25 rotates, the shed is formed on the heald frame 14, when the driven gear ring 26 rotates, the lifting rotating rod 5 rotates forward, which indirectly tightens the second steel wire rope 12, so that the second steel wire rope 12 pulls down the heald frame 14 under the guidance of the folding wheel 13, at the same time, the lifting rotating rod 4 rotates backward, the first steel wire rope 11 loosens the restraint on the heald frame 14, and the heald frame 14 is reset, so that one shedding cycle can be completed without reversing the motor 15, so that the speed is not reduced when the forward rotation and the reverse rotation are switched, and a servo motor is not needed, the cost is reduced, the probability of damage of the mechanism is reduced, the textile efficiency is ensured, the reset time of the heald frame 14 is accurately ensured, the shedding cycle does not need to be repeatedly measured and adjusted, and the use defect is avoided;

[0044] It needs to be further explained that when the first transmission belt 8 rotates, the first rotating shaft 91 at the end of the first transmission belt 8 rotates, and the first rotating shaft 91 is connected with the embedded block 94 through the embedded cavity 92, and the embedded block 94 is connected with the controllable gear 95 with a specific diameter, so that the first rotating shaft 91 and the controllable gear 95 with a specific diameter remain relatively static, that is, synchronous rotation, and the remaining controllable gears 95 are not affected by the first rotating shaft 91, and when the first rotating shaft 91 drives the controllable gear 95 with a specific diameter to rotate, the multi-stage gear 96 engaged with the controllable gear 95 rotates, so that the second rotating shaft 97 on the multi-stage gear 96 rotates, and then the winding roller 10 on the second rotating shaft 97 rotates, so as to achieve the purpose of moving the heald frame 14. When it is needed to increase the moving distance of the heald frame 14, the rotary screw rod 93 is rotated, so that the screw rod 93 gradually separates from the first rotating shaft 91, and the embedded block 94 on the screw rod 93 moves to the controllable gear 95 with a larger diameter and is connected with it, according to the above linear speed formula, in the case that the output power of the motor 15 is unchanged, the angular velocity of the first rotating shaft 91 is unchanged, and the increase of the radius of the controllable gear 95 will increase its linear speed, and the multi-stage gear 96 corresponding to the controllable gear 95 with a larger radius is reduced, and the linear speed of the multi-stage gear 96 is increased, according to the angular velocity formula , it can be known that the angular velocity of the multi-stage gear 96 and the second rotating shaft 97 is increased, so that when the first transmission belt 8 and the first rotating shaft 91 rotate one circle, the number of rotations of the second rotating shaft 97 and the winding roller 10 is increased, and thus the moving distance of the heald frame 14 driven by the first steel wire rope 11 and the second steel wire rope 12 is increased, and vice versa. The moving distance of the heald frame 14 is reduced by repeating the above adjustment operation in reverse, so that the stroke length of the heald frame 14 can be adjusted arbitrarily according to the requirements of the fabric to adapt to different fabric requirements, avoiding the height and length limitations of the cam and the transmission rod, so that the stroke adjustment of the heald frame 14 is simple and convenient, and parts do not need to be disassembled and replaced;

[0045] The lifting of the above-described heald frame 14 causes the side wall of the heald frame 14 to mesh with the first screw rod 36, so that the lifting of the heald frame 14 drives the first screw rod 36 to rotate, and the second transmission belt 37 on the first screw rod 36 drives the first rotating shaft 91 of the speed regulation mechanism 9 to rotate. According to the above process, the second rotating shaft 97 rotates at a certain ratio, so that the third transmission belt 38 on the second rotating shaft 97 drives the second screw rod 39 to rotate, and the second screw rod 39 drives the sliding block 40 to move. The sliding block 40 is in sliding connection with the machine body 32, so that the sliding block 40 cannot rotate, and is driven by the second screw rod 39 to lift and drop. The press roller 41 on the sliding block 40 rises with the lifting of the heald frame 14, and drops with the dropping of the heald frame 14, and the lifting and dropping distances are controllable. When the press roller 41 drops, the distance between the press roller 41 and the positioning roller 34 is suddenly reduced, so that the extrusion on the warp is increased, and the surface tension of the warp is restored to a predetermined value. When the press roller 41 rises, the extrusion on the warp is reduced, so that the surface tension of the warp is reduced to cope with the increase of the warp tension caused by the lifting of the heald frame 14, so as to avoid the broken warp caused by the heald frame 14, and the application mechanism of the warp surface tension is adaptively matched with the heald lifting process, so that the heald lifting efficiency and the weaving efficiency can be maintained, without the need of deceleration, and the risk of broken warp is reduced, the quality of the fabric is ensured, and the operation is completed.

[0046] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A heddle-lifting mechanism for a water-jet loom, characterized in that, The system includes a bracket (1), on which a first fixing fixture (2) and a second fixing fixture (3) are fixedly connected. A lifting rod (4) and a lowering rod (5) are rotatably connected to the side wall of the second fixing fixture (3). An upper fixing block (6) is fitted on the outer surface of the lifting rod (4), and a lower fixing block (7) is fitted on the outer surface of the lowering rod (5). One end of a first transmission belt (8) is fixedly connected to the outer surfaces of both the lifting rod (4) and the lowering rod (5). A speed regulating mechanism (9) is installed at the other end of the first transmission belt (8). The speed regulating mechanism (9) includes a first rotating shaft (91), which has a cavity (92) and a lead screw (93) meshing on the end face of the first rotating shaft (91). An insert (94) is rotatably connected to the end face of the lead screw (93). The outer surface of the first rotating shaft (91) is fitted with a... There is a controllable gear (95), and the outer surface of the controllable gear (95) is meshed with a multi-stage gear (96). A second rotating shaft (97) is fixed on the central axis of the multi-stage gear (96). A take-up roller (10) is fixed on the end face of the second rotating shaft (97). The take-up roller (10) is provided in two sets. One set of take-up rollers (10) is rotatably sleeved with the upper fixed block (6), and the other set of take-up rollers (10) is rotatably sleeved with the lower fixed block (7). A first steel wire rope (11) is sleeved on the take-up roller (10) in the upper fixed block (6), and a second steel wire rope (12) is sleeved on the take-up roller (10) in the lower fixed block (7). A deflector wheel (13) is slidably sleeved on the outer surface of the second steel wire rope (12). A heald frame (14) is fixed on the end face of the second steel wire rope (12), and the end of the first steel wire rope (11) is fixed to the top surface of the heald frame (14). A motor (15) is mounted on the first fixed fixture (2), and a fixed frame (16) is fixedly connected to the side wall of the first fixed fixture (2). Both ends of the fixed frame (16) are fixedly connected to limiting cylinders (17). There are two limiting cylinders (17), and a limiting groove (18) is formed between the two limiting cylinders (17). A first transmission shaft (19) is fixedly connected to the output end of the motor (15). A sliding groove (20) is opened on the outer surface of the first transmission shaft (19). One end of a sliding rod (21) is slidably connected in the sliding groove (20). A collar (22) is fixedly connected to the other end of the sliding rod (21). A connecting ring (22) is slidably connected to the outer surface of the collar (22). One end of the rod (23) is slidably connected to the other end of the connecting rod (23), and the outer surface of the driving gear (24) is meshed with the driven gear (25). The outer surface of the driven gear (25) is meshed with the transmission gear (27). The end of the return rotating rod (5) is fixedly connected to the driven gear ring (26). The outer surface of the first transmission shaft (19) is fixedly connected to the driving roller (28). The outer surface of the driving roller (28) is slidably sleeved with one end of the track (29). The other end of the track (29) is slidably sleeved with the driven roller (30). The central axis of the driven roller (30) is fixedly connected to the second transmission shaft (31).

2. The heald frame lifting mechanism for a water-jet loom according to claim 1, characterized in that: The bracket (1) is U-shaped. The first fixing fixture (2) is rotatably connected to the lifting rotating rod (4) and the falling rotating rod (5). The upper fixing block (6) and the lower fixing block (7) are each provided in two sets. One set of upper fixing blocks (6) and lower fixing blocks (7) is fixed to the side wall of the first fixing fixture (2), and the other set of upper fixing blocks (6) and lower fixing blocks (7) is fixed to the side wall of the second fixing fixture (3).

3. The heald frame lifting mechanism for a water-jet loom according to claim 1, characterized in that: The first rotating shaft (91) is fixed to the end of the first transmission belt (8), the insert (94) is fitted into the cavity (92), and the insert (94) is fitted into the inner surface of the controllable gear (95). The diameter of the controllable gear (95) decreases sequentially, and the diameter of the multi-stage gear (96) increases sequentially. The first transmission belt (8) is provided with two sets. One set of the first transmission belt (8) is rotatably sleeved with the upper fixed block (6), and the other set of the first transmission belt (8) is rotatably sleeved with the lower fixed block (7).

4. The heald frame lifting mechanism for a water jet loom according to claim 1, characterized in that: The second drive shaft (31) is sleeved and connected to the connecting rod (23), and the end of the second drive shaft (31) is set in a polygonal prism shape. The end of the second drive shaft (31) is fitted and sleeved with the drive gear (24). The limiting groove (18) is a single-turn spiral gap with the beginning and end connected. The collar (22) is slidably sleeved with the limiting cylinder (17).

5. The heald frame lifting mechanism for a water jet loom according to claim 4, characterized in that: A return spring is fixed between the slide rod (21) and the slide groove (20). The driven gear (25) is fixed to the return rotating rod (5). The transmission gear (27) is fixed to the lifting rotating rod (4). The thickness of the driven gear ring (26) is 3 times the thickness of the driven gear (25). The gap thickness between the driven gear ring (26) and the driven gear (25) is the same as the thickness of the driven gear (25). The radius of the driving roller (28) is 4 times the radius of the driven roller (30). The pitch of the limiting groove (18) is 4 times the thickness of the driven gear (25). The circumference of the driven gear ring (26) is 3 times the circumference of the driven gear (25). The first transmission shaft (19) is sleeved with the limiting cylinder (17).

6. A water-jet loom with a heald frame lifting mechanism according to any one of claims 1-5, characterized in that: The machine includes a body (32), the top surface of which is fixedly connected to a bracket (1), a baffle plate (33) is fixedly connected to the top of the body (32), a positioning roller (34) is rotatably connected between the bodies (32), and a locking block (35) is fixedly connected to the side wall of the body (32). A first screw (36) is rotatably connected between the locking blocks (35). One end of a second transmission belt (37) is fixedly connected to the top surface of the first screw (36), and the other end of the second transmission belt (37) is connected to a speed regulating mechanism (9). One end of a third transmission belt (38) is fixedly connected to the second rotating shaft (97) of the speed regulating mechanism (9), and a second screw (39) is fixedly connected to the other end of the third transmission belt (38). A slider (40) is meshed with the outer surface of the second screw (39), and a pressure roller (41) is rotatably connected to the side wall of the slider (40).

7. A water-jet loom according to claim 6, characterized in that: The slider (40) is slidably connected to the side wall of the body (32), and multiple speed regulating mechanisms (9) are provided. The second transmission belt (37) is fixedly connected to the first rotating shaft (91). The first screw (36) is engaged with the side wall of the heddle frame (14). The second screw (39) and the speed regulating mechanism (9) are rotatably connected to the side wall of the body (32). The inner bottom surface of the body (32) is rotatably connected to the deflector wheel (13). The locking block (35) is fitted into the heddle frame (14).

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