阅读说明：本技术 一种剑杆渔网编织机 (Rapier fishing net braiding machine ) 是由 虞国炎 虞颖超 于 2019-11-12 设计创作，主要内容包括：本发明涉及纺织机械技术领域,尤其涉及一种剑杆渔网编织机,包括机架、前综框、后综框、驱动部一和驱动部二,前综框上设有固定块一,固定块一上开设有长圆孔,长圆孔内设有滑动杆,滑动杆上固定有连接板一,后综框上设有连接板二,所述连接板一和连接板二上连有固定在机架上的上下运动导向机构；所述前综框的一端固定有滑槽座,所述滑槽座内设有滚轮一,滚轮一上连有滚轮座；滚轮座上连有左右移动传动杆,驱动部一带动前综框进行左右运动,驱动部二带动前、后综框进行上下运动；优势在于：与现有技术相比,该剑杆渔网编织机的综框结构较为简洁、实用,便于后期维护；驱动部一和驱动部二采用凸轮传动,精度高,稳定性好,利于提高传动速度。(The invention relates to the technical field of textile machinery, in particular to a rapier fishing net weaving machine which comprises a rack, a front heald frame, a rear heald frame, a first driving part and a second driving part, wherein the front heald frame is provided with a first fixing block, the first fixing block is provided with a long circular hole, a sliding rod is arranged in the long circular hole, the sliding rod is fixedly provided with a first connecting plate, the rear heald frame is provided with a second connecting plate, and the first connecting plate and the second connecting plate are connected with an up-and-down motion guide mechanism fixed on the; a sliding groove seat is fixed at one end of the front heald frame, a first roller is arranged in the sliding groove seat, and a first roller is connected with a roller seat; the roller seat is connected with a left-right moving transmission rod, the driving part drives the front heald frame to move left and right, and the driving part II drives the front heald frame and the rear heald frame to move up and down; the advantages are that: compared with the prior art, the heald frame structure of the rapier fishing net braiding machine is simple and practical, and is convenient for later maintenance; the first driving part and the second driving part adopt cam transmission, so that the precision is high, the stability is good, and the transmission speed is favorably improved.)

1. The utility model provides a rapier fishing net braider, includes frame, preceding heald frame and back heald frame, its characterized in that: the top surface and the bottom surface of the front heald frame are both provided with a first fixed block, the first fixed block is provided with a long circular hole arranged along the left-right movement direction, a sliding rod is arranged in the long circular hole, a first connecting plate is fixed on the sliding rod, a second connecting plate is fixed on the top surface and the bottom surface of the rear heald frame, and the first connecting plate and the second connecting plate are connected with an up-down movement guide mechanism fixed on the frame; an upper connecting plate and a lower connecting plate are fixed at one end of the front heald frame, a chute seat is fixed between the upper connecting plate and the lower connecting plate, a chute which is vertically arranged is formed in the chute seat, a first roller is arranged in the chute, and a first roller is connected with a roller seat; the mechanism is characterized in that the roller seat is connected with a left-right moving transmission rod, the left-right moving transmission rod is connected with a first driving part, the first connecting plate below the front heald frame and the second connecting plate below the rear heald frame are both hinged with heald lifting arms, and the heald lifting arms are connected with a second driving part.

2. The rapier fishing net weaving machine according to claim 1, characterized in that: the up-and-down movement guide mechanism comprises a rack connecting plate, two guide holes are formed in the rack connecting plate, guide rods which move vertically are arranged in the guide holes, mounting holes I are formed in the connecting plate I and the connecting plate II, one guide rod is fixedly connected with the mounting hole I in the connecting plate I, the other guide rod is fixedly connected with the mounting hole I in the connecting plate II, and a linear bearing I is arranged between each guide hole and each guide rod.

3. The rapier fishing net weaving machine according to claim 1, characterized in that: the driving part I comprises a box body I and a left moving rod and a right moving rod which are connected with a left moving transmission rod and a right moving transmission rod, an input shaft I, a transmission shaft II and an output shaft I are connected to the box body I in a rotating mode, one end, located in the box body I, of the input shaft I is provided with a bevel gear I, the transmission shaft I is fixedly provided with a transmission gear I and a bevel gear II meshed with the bevel gear I, the transmission shaft II is fixedly provided with a transmission gear II and a transmission gear III meshed with the transmission gear I, the output shaft I is fixedly provided with a cam and an output gear I meshed with the transmission gear II, the inner wall of the box body I is provided with two fixing blocks II, the fixing blocks II are provided with linear bearings II, the left moving rod and the right moving rod are connected with the fixing.

4. The rapier fishing net weaving machine according to claim 3, characterized in that: the first bevel gear and the second bevel gear are the same in size, and the diameter ratio of the first transmission gear, the third transmission gear, the second transmission gear and the first output gear is 1:2:1:3 in sequence.

5. The rapier fishing net weaving machine according to claim 3, characterized in that: the left moving rod and the right moving rod penetrate through the second mounting hole and are fastened through the fastening screws.

6. The rapier fishing net weaving machine according to claim 3, characterized in that: the two driving parts comprise a second box body, a transmission gear set and two cam transmission mechanisms, the second box body is rotatably connected with a second input shaft, a second output shaft and two heald lifting driving shafts, one heald lifting driving shaft is hinged with a heald lifting arm on the front heald frame, and the other heald lifting driving shaft is hinged with a heald lifting arm on the rear heald frame; the heald lifting driving shaft is provided with a connecting rod seat, and two ends of the transmission gear set are respectively connected with the input shaft II and the output shaft II; the cam transmission mechanism comprises a first connecting rod, a second connecting rod, a first weft sharing cam, a second weft sharing cam, a first swinging block and a second swinging block, wherein the first weft sharing cam and the second weft sharing cam are fixed on the second output shaft, the first swinging block and the second swinging block are rotatably connected with the second box body, two ends of the first connecting rod are respectively hinged with the first swinging block and the second swinging block, two ends of the second connecting rod are respectively hinged with the first swinging block and the connecting rod seat, one side of the first swinging block is provided with a first transmission block matched with the first weft sharing cam, and one side of the second swinging block is provided with a second.

7. The rapier fishing net weaving machine of claim 6, characterized in that: the transmission gear set comprises an input gear fixed on the input shaft II, a transmission shaft III in rotary connection with the box body, and an output gear II fixed on the output shaft II, wherein a transmission gear IV meshed with the input gear and a transmission gear V meshed with the output gear II are fixed on the transmission shaft III.

8. The rapier fishing net weaving machine of claim 7, characterized in that: the diameters of the input gear, the fourth transmission gear, the fifth transmission gear and the second output gear are 1:2:1: 1.5 in sequence.

9. The rapier fishing net weaving machine of claim 6, characterized in that: the drafting arm, the first connecting rod and the second connecting rod all comprise connecting blocks, two through holes are formed in the connecting blocks, screw rods penetrate through the through holes, and nuts are connected to two sides of the screw rods, located in the through holes, in a threaded mode.

10. The rapier fishing net weaving machine of claim 6, characterized in that: mounting grooves are formed in the first transmission block, the second transmission block and the stop block, and second idler wheels are arranged in the mounting grooves.

Technical Field

The invention relates to the technical field of textile machinery, in particular to a rapier fishing net braiding machine.

Background

The heald frame of rapier fishing net braider has two, and two heald frame up-and-down motion carry out the plain weave, also have among the prior art to adopt and carry out the side-to-side motion again with the heald frame in the up-and-down motion to reach the effect that the fork hank was woven, nevertheless present rapier fishing net braider has following defect: 1. the structure of the heald frame which can move left and right while realizing the up-and-down movement is more complex, so that the manufacturing cost of the rapier weaving machine is higher and the later maintenance is difficult; 2. the transmission structure for driving the heald frame to move on the rapier fishing net weaving machine is too complex, the unfavorable cost is reduced and the later maintenance is carried out, the driving device in the prior art adopts chain wheel transmission, the stability is not high, during the driving, the return of the heald frame is realized by utilizing a spring mechanism, and the precision is difficult to control.

Disclosure of Invention

The invention aims to provide a rapier fishing net braiding machine, which is used for simplifying a heald frame structure and improving the stability and the precision of a driving device of the rapier fishing net braiding machine.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a rapier fishing net braiding machine comprises a frame, a front heald frame and a rear heald frame, wherein a first fixing block is arranged on the top surface and the bottom surface of the front heald frame, a long circular hole arranged along the left-right movement direction is formed in the first fixing block, a sliding rod is arranged in the long circular hole, a first connecting plate is fixed on the sliding rod, a second connecting plate is fixed on the top surface and the bottom surface of the rear heald frame, and the first connecting plate and the second connecting plate are connected with an up-down movement guide mechanism fixed on the frame; an upper connecting plate and a lower connecting plate are fixed at one end of the front heald frame, a chute seat is fixed between the upper connecting plate and the lower connecting plate, a chute which is vertically arranged is formed in the chute seat, a first roller is arranged in the chute, and a first roller is connected with a roller seat; the mechanism is characterized in that the roller seat is connected with a left-right moving transmission rod, the left-right moving transmission rod is connected with a first driving part, the first connecting plate below the front heald frame and the second connecting plate below the rear heald frame are both hinged with heald lifting arms, and the heald lifting arms are connected with a second driving part.

Furthermore, the up-and-down movement guide mechanism comprises a rack connecting plate, two guide holes are formed in the rack connecting plate, guide rods which move vertically are arranged in the guide holes, mounting holes I are formed in the connecting plate I and the connecting plate II, one guide rod is fixedly connected with the mounting hole I in the connecting plate I, the other guide rod is fixedly connected with the mounting hole I in the connecting plate II, and a linear bearing I is arranged between each guide hole and each guide rod.

Further, the driving portion one comprises a box body one and a left moving rod and a right moving rod which are connected with a left moving transmission rod and a right moving transmission rod, the box body one is rotatably connected with a first input shaft, a first transmission shaft, a second transmission shaft and a first output shaft, one end of the first input shaft, which is located in the box body one, is provided with a first bevel gear, the first transmission shaft is fixedly provided with a first transmission gear and a second bevel gear which is meshed with the first bevel gear, the second transmission shaft is fixedly provided with a second transmission gear and a third transmission gear which is meshed with the first transmission gear, the first output shaft is fixedly provided with a cam and a first output gear which is meshed with the second transmission gear, the inner wall of the box body one is provided with two fixed blocks two which are provided with linear bearings two, the left moving rod and the right moving rod are connected with the second fixed.

Further, the first bevel gear and the second bevel gear are the same in size, and the diameter ratio of the first transmission gear, the third transmission gear, the second transmission gear and the first output gear is 1:2:1:3 in sequence.

Furthermore, a second mounting hole and a screw hole communicated with the second mounting hole are formed in the stop block, a fastening screw is connected with the screw hole in an internal thread mode, and the left moving rod and the right moving rod penetrate through the second mounting hole and are fastened through the fastening screw.

Furthermore, the second driving part comprises a second box body, a transmission gear set and two cam transmission mechanisms, the second box body is rotatably connected with a second input shaft, a second output shaft and two heald lifting driving shafts, one heald lifting driving shaft is hinged with a heald lifting arm on the front heald frame, and the other heald lifting driving shaft is hinged with a heald lifting arm on the rear heald frame; the heald lifting driving shaft is provided with a connecting rod seat, and two ends of the transmission gear set are respectively connected with the input shaft II and the output shaft II; the cam transmission mechanism comprises a first connecting rod, a second connecting rod, a first weft sharing cam, a second weft sharing cam, a first swinging block and a second swinging block, wherein the first weft sharing cam and the second weft sharing cam are fixed on the second output shaft, the first swinging block and the second swinging block are rotatably connected with the second box body, two ends of the first connecting rod are respectively hinged with the first swinging block and the second swinging block, two ends of the second connecting rod are respectively hinged with the first swinging block and the connecting rod seat, one side of the first swinging block is provided with a first transmission block matched with the first weft sharing cam, and one side of the second swinging block is provided with a second.

Furthermore, the transmission gear set comprises an input gear fixed on the input shaft II, a transmission shaft III in rotary connection with the box body, and an output gear II fixed on the output shaft II, wherein a transmission gear IV meshed with the input gear and a transmission gear V meshed with the output gear II are fixed on the transmission shaft III.

Furthermore, the diameter ratio of the input gear to the transmission gear is 1:2:1: 1.5, and the diameter ratio of the transmission gear to the transmission gear is 1:2:1: 1.5.

Further, the drafting arm, the first connecting rod and the second connecting rod all comprise connecting blocks, two through holes are formed in the connecting blocks, screw rods penetrate through the through holes, and nuts are connected to two sides of the screw rods, located in the through holes, in a threaded mode.

Further, mounting grooves are formed in the first transmission block, the second transmission block and the stop block, and second idler wheels are arranged in the mounting grooves.

The invention has the advantages that:

1. the front heald frame moves up and down and left and right simultaneously by arranging the long round hole convenient for the left and right movement of the connecting plate and the chute seat used for up and down movement, and the heald frame has simpler structure, convenient installation and maintenance and lower manufacturing cost; meanwhile, the guide rod is connected with the guide hole by adopting the linear bearing I, so that the straightness of the vertical movement of the heald frame is further ensured while the guide is provided;

2. the driving part is driven by the cam, and obtains a proper transmission ratio through the gear, so that the transmission speed can be greatly improved; meanwhile, the second driving part can be arranged below, so that the connecting gap is greatly reduced, the stability of the knitting machine is improved, and the mounting and the maintenance are convenient; the cooperation of the cam and the connecting rod is adopted to replace the return action of the spring, which is beneficial to the control of precision;

3. the first driving part drives the left and right moving rods to move left and right by utilizing the rotation of the cam, and has the advantages of good stability, simple transmission mode and high precision; meanwhile, the left moving rod and the right moving rod are connected with the fixed block through a linear bearing II, so that the motion stability of the left moving rod and the right moving rod is further improved.

Drawings

FIG. 1 is a schematic configuration diagram of the present invention in an embodiment;

FIG. 2 is a schematic front view of FIG. 1;

figure 3 is a schematic view of the construction of a heald frame structure according to an embodiment;

FIG. 4 is an enlarged view of the portion C of FIG. 3;

FIG. 5 is an exploded view of the up-down motion guide mechanism of FIG. 3;

FIG. 6 is an exploded view of the roller and the chute base of FIG. 3;

FIG. 7 is a schematic view showing the construction of a first driving part in the embodiment;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a schematic view of a removed side wall of the case of FIG. 7;

FIG. 10 is a side schematic view of the cam side of FIG. 9;

FIG. 11 is a schematic view of the second embodiment of the present invention;

FIG. 12 is a top view of FIG. 11;

FIG. 13 is a schematic view of the second case of FIG. 11 with a side wall removed;

FIG. 14 is a schematic view of the cam gear of FIG. 11;

FIG. 15 is a schematic view of the structure of the first connecting rod or the second connecting rod or the heddle lifting arm in the embodiment;

FIG. 16 is an enlarged view of portion A of FIG. 1;

FIG. 17 is an enlarged view of portion B of FIG. 2;

description of the reference symbols

The heald frame comprises a frame 1, a front heald frame 2, a rear heald frame 3, a first fixing block 4, an oblong hole 5, a sliding rod 6, a first connecting plate 7, a second connecting plate 8, an upper connecting plate 9, a lower connecting plate 10, a chute seat 11, a first roller 12, a roller seat 13, a left-right moving transmission rod 14, a drafting arm 15, a frame connecting plate 16, a guide hole 17, a guide rod 18, a first mounting hole 19, a first box body 20, a left-right moving rod 21, a first input shaft 22, a first transmission shaft 23, a second transmission shaft 24, a first output shaft 25, a first bevel gear 26, a second bevel gear 27, a first transmission gear 28, a second transmission gear 29, a third transmission gear 30, a cam 31, a first output gear 32, a second fixing block 33, a stop block 34, a first driving part 35, a second driving part 36, a fastening screw 37, a second box body 38, a second input shaft 39, a second output shaft 40, a drafting drive shaft 41, the weft sharing device comprises a second weft sharing cam 46, a first swing block 47, a second swing block 48, a first transmission block 49, a second transmission block 50, an input gear 51, a third transmission shaft 52, a second output gear 54, a fourth transmission gear 55, a fifth transmission gear 56, a connecting block 57, a screw 58, a nut 59, a second roller 60 and a rotating shaft 61.

Detailed Description

The present invention will be described in further detail with reference to examples.

The embodiment provides a rapier fishing net weaving machine, which comprises a frame 1, a front heald frame 2 and a rear heald frame 3, wherein the top surface and the bottom surface of the front heald frame 2 are respectively provided with a first fixing block 4, the first fixing block 4 is provided with a long circular hole 5 arranged along the left-right movement direction, a sliding rod 6 is arranged in the long circular hole 5, the sliding rod 6 is fixedly provided with a first connecting plate 7, the top surface and the bottom surface of the rear heald frame 3 are respectively fixedly provided with a second connecting plate 8, and the first connecting plate 7 and the second connecting plate 8 are connected with an up-down movement guide mechanism fixed on the frame 1; an upper connecting plate 9 and a lower connecting plate 10 are fixed at one end of the front heald frame 2, a chute seat 11 is fixed between the upper connecting plate 10 and the lower connecting plate 10, a chute which is vertically arranged is formed in the chute seat 11, a first roller 12 is arranged in the chute, and a first roller seat 13 is connected to the first roller 12; the roller seat 13 is connected with a left-right moving transmission rod 14, the left-right moving transmission rod 14 is connected with a first driving part 35, a first connecting plate 7 below the front heald frame 2 and a second connecting plate 8 below the rear heald frame 3 are both rotatably connected with a second heald lifting arm 15, and the second heald lifting arm 15 is connected with a second driving part 36. Preferably, the front and rear heald frames 3 in this embodiment are made of an aluminum alloy material, so that the weight is light, the pressure on the driving part is reduced, and the transmission speed is increased.

The up-and-down movement guide mechanism comprises a rack connecting plate 16 fixedly connected with the rack 1, two guide holes 17 are formed in the rack connecting plate 16, guide rods 18 which move vertically are arranged in the guide holes 17, mounting holes I19 are formed in the first connecting plate 7 and the second connecting plate 8, one guide rod 18 is fixedly connected with the first mounting hole 19 in the first connecting plate 7, the other guide rod 18 is fixedly connected with the first mounting hole 19 in the second connecting plate 8, and a linear bearing I is arranged between the guide hole 17 and the guide rod 18. The up-and-down motion guide mechanism provides guide for the vertical motion of the front and rear heald frames 3, and preferably, the guide rod 18 is connected with the guide hole 17 by adopting a linear bearing I, so that the linearity of the up-and-down motion of the heald frames is further ensured while the guide is provided.

The first driving part 35 of the embodiment comprises a first box body 20 and a left and right moving rod 21 connected with a left and right moving transmission rod 14, wherein the first box body 20 is rotatably connected with a first input shaft 22, a first transmission shaft 23, a second transmission shaft 24 and a first output shaft 25, one end of the first input shaft 22, which is positioned in the first box body 20, is provided with a first bevel gear 26, the first transmission shaft 23 is fixedly provided with a first transmission gear 28 and a second bevel gear 27 meshed with the first bevel gear 26, the second transmission shaft 24 is fixedly provided with a second transmission gear 29 and a third transmission gear 30 meshed with the first transmission gear 28, the first output shaft 25 is fixedly provided with a cam 31 and a first output gear 32 meshed with the second transmission gear 29, the inner wall of the first box body 20 is provided with two fixed blocks two 33, the second fixed blocks 33 are provided with second linear bearings, the left and right moving rods 21 are connected with the second fixed blocks 33, the two stoppers 34 are positioned on two sides of the cam 31, preferably, the size of the bevel gear I26 is the same as that of the bevel gear II 27, and the diameter ratio of the transmission gear I28, the transmission gear III 30, the transmission gear II 29 and the output gear I32 is 1:2:1:3 in sequence. When installed, the first driving part 35 is connected to the frame 1 through a bracket (the bracket is not shown in the figure).

The top of the stop block 34 is provided with a second mounting hole and a screw hole communicated with the second mounting hole, the screw hole is internally threaded with a fastening screw 37, and the left and right moving rods 21 penetrate through the second mounting hole and are fastened through the fastening screw 37; the lower part of the stop block 34 is provided with a mounting groove, and a second roller 60 opposite to the cam 31 is arranged in the mounting groove. The stop block 34 and the left and right moving rods 21 are fixed through the fastening screws 37, so that the position of the stop block 34 on the left and right moving rods 21 can be conveniently adjusted according to requirements, and the left and right moving amplitude of the left and right moving rods 21 can be adjusted; by arranging the second roller 60, the contact between the cam 31 and the stopper 34 is rolling friction, the friction force between the cam 31 and the stopper 34 is reduced, and the moving fluency of the left and right moving rods 21 is improved.

The transmission route of the first driving part 35 is as follows: an external driving device drives a bevel gear I26 to rotate through an input shaft I22, the bevel gear I26 transmits power to a bevel gear II 27, the bevel gear II 27 drives a transmission gear I28 to rotate through a transmission shaft I23, the transmission gear I28 transmits the power to an output shaft I25 through a transmission gear III 30, a transmission shaft II 24, a transmission gear II 29 and an output gear I32 in sequence, the rotation of the output shaft I25 drives a cam 31 to rotate, and the left and right moving rods 21 move left and right through the cooperation of the cam 31 and two stop blocks 34.

The second driving part 36 of the present embodiment includes a second box body 38, a transmission gear set and two cam transmission mechanisms, the second box body 38 is rotatably connected with a second input shaft 39, a second output shaft 40 and two heald lifting driving shafts 41, one heald lifting driving shaft 41 is hinged to the heald lifting arm 15 on the front heald frame 2, and the other heald lifting driving shaft 41 is hinged to the heald lifting arm 15 on the rear heald frame 3; the heald lifting driving shaft 41 is provided with a connecting rod seat 42, and two ends of the transmission gear set are respectively connected with the second input shaft 39 and the second output shaft 40; the cam transmission mechanism comprises a first connecting rod 43, a second connecting rod 44, a first weft-sharing cam 45 and a second weft-sharing cam 46 which are fixed on a second output shaft 40, and a first swing block 47 and a second swing block 48 which are rotatably connected with a second box body 38, as shown in fig. 14, rotating shafts 61 which are rotatably connected with the box body are arranged on the first swing block 47 and the second swing block 48, two ends of the first connecting rod 43 are respectively hinged with the first swing block 47 and the second swing block 48, two ends of the second connecting rod 44 are respectively hinged with the first swing block 47 and the connecting rod seat 42, a first transmission block 49 matched with the first weft-sharing cam 45 is arranged on one side of the first swing block 47, and a second transmission block 50 matched with the second weft-sharing cam 46 is arranged on one side of the second. The first driving block 49 and the second driving block 50 are also provided with mounting grooves, the second idler wheels 60 are arranged in the mounting grooves, and the second idler wheels 60 are arranged, so that the contact between the weft-sharing cam and the driving blocks is rolling friction, the friction force between the weft-sharing cam and the driving blocks is reduced, and the moving smoothness of the cam driving mechanism is improved. In the prior art, the second driving part 36 (or called a harness box) is generally mounted on the top and driven by a chain wheel, for example, the prior application 201410500978.4 of the applicant adopts the scheme that has the following defects: chain drive makes rise to combine actuating mechanism's rotational speed can not be in further improvement, and current rise to combine actuating mechanism is overhead installation, the joint gap is great, lead to stability relatively poor, also do not benefit to assembly and later maintenance in earlier stage simultaneously, and this application is owing to adopt rise to combine drive shaft 41 to drive rise to combine arm 15 up-and-down motion, as shown in fig. 1, installation (directly put on the ground) can be put down to drive division two 36, the joint gap has been reduced, and stability has been improved, be convenient for later maintenance, adopt the cam drive of latitude altogether simultaneously, and obtain suitable drive ratio through the gear, make driven speed can increase substantially.

The transmission gear set comprises an input gear 51 fixed on the input shaft II 39, a transmission shaft III 52 in rotary connection with the box body, and an output gear II 54 fixed on the output shaft II 40, wherein a transmission gear IV 55 meshed with the input gear 51 and a transmission gear V56 meshed with the output gear II 54 are fixed on the transmission shaft III 52. Preferably, the diameter ratio among the input gear 51, the transmission gear four 55, the transmission gear five 56 and the output gear two 54 of the present embodiment is 1:2:1: 1.5 in sequence.

The power transmission route of the second driving part 36 is as follows: external power is transmitted to the input gear 51 through the input shaft II 39, the input gear 51 transmits the power to the output shaft II 40 through the transmission gear IV 55, the transmission gear V56 and the output gear II 54 in sequence, the output shaft II 40 drives the weft sharing cam I45 and the weft sharing cam II 46 to rotate, the swing block I47 and the swing block II 48 are driven to swing back and forth under the action of the connecting rod I43 through the rotation of the weft sharing cam I45 and the weft sharing cam II 46, the swing of the swing block I47 drives the heald lifting driving shaft 41 to rotate back and forth under the action of the connecting rod II 44, and as shown in fig. 1, the heald lifting driving shaft 41 rotates back and forth to drive the heald frames to move up and down through the heald lifting. The embodiment can adjust the amplitude and the frequency of the vertical movement of the heald frame by changing the shapes or the relative angles of the four weft sharing cams, and compared with the prior art, the embodiment replaces chain transmission by weft sharing cam transmission and obtains a proper transmission ratio by a gear, so that the transmission speed can be greatly improved. In addition, because two sets of cam transmission mechanisms and two heald lifting driving shafts 41 are arranged, the two heald frames can be driven to move up and down respectively, and a user can adjust the up-and-down movement amplitude and frequency of the two heald frames respectively according to actual requirements.

The movement of the heddle frame structure is as follows: the left and right travel rods 21 of the first drive part 35 are connected with the left and right movement transmission rod 14, the second drive part 36 is hinged with the first connecting plate 7 below the front heald frame 2 through one of the heald lifting drive shafts 41 and the heald lifting arm 15, and is hinged with the second connecting plate 8 below the rear heald frame 3 through the other heald lifting drive shaft 41 and the heald lifting arm 15, and fig. 16 and 17 show a connecting structure between the heald lifting arm 15 and the heald lifting output shaft, the first connecting plate 7 or the second connecting plate 8. The first driving part 35 drives the left-right moving transmission rod 14 to move left and right, the left-right moving transmission rod 14 drives the front heald frame 2 to move left and right through the upper connecting plate 9 and the lower connecting plate 10, and when the front heald frame 2 moves left and right, the sliding rod 6 slides back and forth in the long round hole 5 on the fixed block; the second driving part 36 drives the heald lifting driving shaft 41 to rotate back and forth within a certain angle, so as to drive the heald lifting arm 15 to move up and down, the up-and-down movement of the heald lifting arm 15 drives the corresponding front and rear heald frames 3 to move up and down, and when the front heald frame 2 moves up and down, the chute seat 11 moves up and down and back and forth relative to the roller wheel 12. Because the first connecting plate 7 moves left and right in the oblong hole 5 through the sliding rod 6, and the first rolling wheel 12 rolls in the sliding groove, the left and right movement and the up and down movement of the front heald frame 2 cannot be influenced mutually.

As shown in fig. 15, the lifting arm 15, the first connecting rod 43 and the second connecting rod 44 all include a connecting block 57, two through holes are formed in the connecting block 57, a screw rod 58 penetrates through the through holes, and nuts 59 are connected to the screw rods 58 on two sides of the through holes in a threaded manner. The length of the first connecting rod 43 or the second connecting rod 44 or the heddle lifting arm 15 can be adjusted at any time by rotating the nut 59, the motion amplitude of the corresponding component can also be adjusted by changing the length, for example, the swing amplitude of the first swing block 47 and the second swing block 48 can be changed by adjusting the length of the first connecting rod 43, the swing amplitude of the heddle lifting driving shaft 41 can be adjusted by adjusting the length of the second connecting rod 44, and the up-and-down motion amplitude of the front heddle frame 3 and the back heddle frame 3 can be adjusted by adjusting the length of the heddle lifting arm 15.

The above embodiments are only used for explaining the concept of the invention, and not for limiting the protection of the invention, and any insubstantial modifications of the invention using this concept shall fall within the scope of the invention.