阅读说明：本技术 平行纱杠喂纱装置 (Parallel yarn bar feeding device ) 是由 孙平范 肖运全 平学飞 李帅君 高洁 于 2021-05-31 设计创作，主要内容包括：平行纱杠喂纱装置,包括喂纱装置、左侧支撑座和右侧支撑座,左侧支撑座、右侧支撑座固定安装在喂纱装置的下端面上,喂纱装置包括同步带张紧机构、同步带驱动机构和多根纱杠,纱杠平行布设在同步带张紧机构、同步带驱动机构之间,在每根纱杠的外侧套设有多根同步带,每根同步带分别与同步带张紧机构、同步带驱动机构独立连接,对应的,在纱杠上安装有与每根同步带相适配的喂纱器,同步带张紧机构包括安装板组、张紧滑块和张紧轮,张紧轮转动安装在张紧滑块上,张紧滑块可调式安装在安装板组上,通过在纱杠上安装多个喂纱器,便于在有限的空间内多增加更多的喂纱器,便于生产更多色型的织物。(A parallel yarn feeding device comprises a yarn feeding device, a left supporting seat and a right supporting seat, wherein the left supporting seat and the right supporting seat are fixedly arranged on the lower end face of the yarn feeding device, the yarn feeding device comprises a synchronous belt tensioning mechanism, a synchronous belt driving mechanism and a plurality of yarns, the yarns are parallelly arranged between the synchronous belt tensioning mechanism and the synchronous belt driving mechanism, a plurality of synchronous belts are sleeved outside each yarn, each synchronous belt is respectively and independently connected with the synchronous belt tensioning mechanism and the synchronous belt driving mechanism, correspondingly, a yarn feeder matched with each synchronous belt is arranged on each yarn, the synchronous belt tensioning mechanism comprises a mounting plate group, a tensioning sliding block and a tensioning wheel, the tensioning wheel is rotatably arranged on the tensioning sliding block, the tensioning sliding block is adjustably arranged on the mounting plate group, and more yarn feeders can be conveniently added in a limited space by arranging the plurality of yarn feeders on the yarns, the production of fabrics with more color types is convenient.)

1. Parallel yarn thick stick yarn feeding device, including yarn feeding device (1), left side supporting seat (2) and right side supporting seat (3), left side supporting seat (2), right side supporting seat (3) fixed mounting is on yarn feeding device's (1) lower terminal surface, a serial communication port, yarn feeding device (1) includes hold-in range straining device (4), hold-in range actuating mechanism (5) and many yarn thick stick (6), yarn thick stick (6) parallel arrangement is in hold-in range straining device (4), between hold-in range actuating mechanism (5), the outside cover of every yarn thick stick (6) is equipped with many hold-in range (7), every hold-in range (7) respectively with hold-in range straining device (4), hold-in range actuating mechanism (5) independent connection, it is corresponding, install yarn feeder (8) with every hold-in range (7) looks adaptation on yarn thick stick (6), hold-in range straining device (4) are including installation board group (9), The tensioning device comprises a tensioning sliding block (10) and a tensioning wheel (11), wherein the tensioning wheel (11) is rotatably arranged on the tensioning sliding block (10), and the tensioning sliding block (10) is adjustably arranged on the mounting plate group (9);

a Usne handle (31) is arranged in the yarn feeder (6), the Usne handle (31) comprises a mounting part (34), a connecting part (35) and a yarn nozzle part (36), according to the structure of the Usne handle (31) in the yarn feeder (6), the yarn feeder (6) is divided into a first yarn feeder (53), a second yarn feeder (54), a third yarn feeder (55), a fourth yarn feeder (56) and a fifth yarn feeder (57), wherein an included angle between the mounting part (34) and the connecting part (35) on the first yarn feeder (53) is 99-113 degrees, and an included angle between the connecting part (35) and the yarn nozzle part (36) is 139.5-143.5 degrees;

the included angle between the mounting part (34) and the connecting part (35) on the second yarn feeder (54) is 115-121 degrees, and the included angle between the connecting part (35) and the yarn mouth part (36) is 139-143 degrees; the included angle between the mounting part (34) and the connecting part (35) on the third yarn feeder (55) is 123.5-127.5 degrees, and the included angle between the connecting part (35) and the yarn mouth part (36) is 140.5-144.5 degrees; the included angle between the mounting part (34) and the connecting part (35) on the fourth yarn feeder (56) is 141-145 degrees, and the included angle between the connecting part (35) and the yarn mouth part (36) is 151-155 degrees; the included angle between the mounting part (34) and the connecting part (35) on the fifth yarn feeder (57) is 152-156 degrees, and the included angle between the connecting part (35) and the yarn mouth part (36) is 155-159 degrees.

2. The parallel yarn feeding device as in claim 1, characterised in that the set of mounting plates (9) comprises a setting plate (12) and an adjusting plate (13), the adjusting plate (13) is fixedly mounted on the left support base (2), the setting plate (12) is fixedly connected with the adjusting plate (13), a slider groove (14) is formed in the adjusting plate (13), the tensioning slider (10) is slidably mounted in the slider groove (14), the tensioning slider (10) is connected with the setting plate (12), and the number of slider grooves (14) is the same as the number of tensioning sliders (10).

3. Yarn feeding device as in claim 2, characterised in that an adjusting groove (16) is fixedly formed by the abutment plate (12), that an adjusting fixing screw (17) is slidably mounted in the adjusting groove (16), that the adjusting fixing screw (17) is connected to the tensioning slider (10), that an adjusting screw (18) is mounted on the side wall of the adjusting plate (13), and that the adjusting screw (18) is rotatably connected to the tensioning slider (10).

4. Yarn feeding device as in claim 1, characterised in that the yarn bar (6) is i-shaped, that guide grooves (19) are formed in the upper and lower end faces of the yarn bar (6), that guide rods (20) are fixedly mounted in the guide grooves (19), and that the yarn feeders (8) are slidably mounted on the guide rods (20).

5. Yarn feeding device with parallel feed bars according to claim 4, characterised in that the upper end face of the feed bar (6) is fixedly connected with a connecting plate (21), that the feed bar (6) is provided with guide grooves (19) on both sides of the connecting plate (21) and that a reinforcing connecting plate (15) is fixedly connected to the connecting plate (21).

6. The parallel yarn bar feeding device as in claim 1, characterised in that a fixing rib (22) is fixedly connected to the right-hand support base (3), that a mounting step (23) is formed on the fixing rib (22), that the synchronous belt drive mechanism (5) is fixedly mounted on the mounting step (23), and that a stopper (27) is fixedly connected in the mounting step (23).

7. The parallel yarn bar feeding device as in claim 6, characterized in that the synchronous belt drive mechanism (5) comprises a drive motor (24), a motor mounting plate (25) and a synchronizing wheel (26), the drive motor (24) is fixedly mounted on the motor mounting plate (25), the motor mounting plate (25) is fixedly mounted in the mounting step (23), a limiting head (27) is fixedly connected in the mounting step (23), the limiting head (27) limits the motor mounting plate (25), and the synchronizing wheel (26) is fixedly welded on the drive motor (24).

8. The parallel yarn bar feeding device as in claim 1, characterised in that the yarn feeder (8) comprises a belt link plate (28), a pulley assembly (29), a belt clip (30), a knob (32) and a nozzle (33), the shank (31) is mounted on the belt link plate (28), the pulley assembly (29) is mounted on the belt link plate (28), the mounting portion (34) is fixedly connected with the belt link plate (28), both ends of the connecting portion (35) are respectively connected with the nozzle portion (36) and the mounting portion (34), the nozzle (33) is mounted on the nozzle portion (36), and the knob (32) is mounted on the mounting portion (34).

9. Parallel yarn bar feeding device according to claim 8, characterised in that the pulley assembly (29) comprises an upper roller (37), a lower roller member (38) and a lower roller adjustment member (39), the upper roller (37) being fixedly mounted on the belt link plate (28) by means of roller bolts, the lower roller member (38) being rotatably mounted on the belt link plate (28), the lower roller adjustment member (39) being adapted to the lower roller member (38).

10. The parallel yarn bar feeding device as in claim 9, wherein the lower roller member (38) includes a roller base (40), a lower roller (41) and a shoulder screw (42), the lower roller (41) being rotatably mounted on the roller base (40), the roller base (40) being rotatably mounted on the belt attachment plate (28) by the shoulder screw (42), the roller base (40) being formed with an adjusting member attachment groove (43), the lower roller adjusting member (39) being attached to the adjusting member attachment groove (43).

Technical Field

The invention belongs to the technical field of spinning, and particularly relates to a parallel yarn bar yarn feeding device.

Background

The flat knitting machine is an automatic device with high technical content in the knitting industry, and integrates the technologies of computer digital control, motor driving, mechanical design and the like. The yarn feeder is an important component of a flat knitting machine and is a yarn feeding device for drawing yarn into knitting. The intarsia technology is a method for forming pattern fabric by transversely inlaying two or more than two blocks of yarn with different colors or different types when forming weave, and is a new technology combining knitting needle and colored yarn exchange weaving.

In order to knit a fabric having a plurality of color patches, a jog type yarn feeding device having a plurality of yarn bars is used in a conventional flat knitting machine, and there are 2 types of flat knitting machines on the market, which are all jog type yarn feeding devices having only 4 parallel yarn bars. The flat knitting machine comprises 4 parallel yarn bars in parallel, and the flat knitting machine comprises 4 parallel yarn bars which are high in the middle and low in two ends and are sector-shaped circular arch parallel yarn bars. And the two side surfaces of each yarn bar are provided with slide rails for installing yarn feeders to slide, and each slide rail is provided with 2 groups of yarn feeders, so that one set of intelligent running type yarn feeding device can only be used for installing 16 groups of yarn feeders to weave, namely, 16 colors of fabrics can only be woven simultaneously. Because every group of yarn feeders of the intelligent running type yarn feeder device can need intelligent synchronous head motion according to the position where knitting crochet hooks take yarns, the intelligent running type yarn feeder device is more suitable for knitting inlaid fabrics, but the inlaid fabrics are often complex in pattern and numerous in color, and a flat knitting machine with only 16 groups of yarn feeder devices cannot meet the requirements of the inlaid fabrics.

Disclosure of Invention

In view of the above disadvantages, the technical problem to be solved by the present invention is to provide a parallel yarn bar feeding device, which increases more yarn bars in a limited space, and at this time, has higher requirements on design of an external machine head overbridge, design of a bending angle of each wusi handle, and mounting precision, so that the number of yarn mouths for intarsia knitting can be increased, and more different color patterns can be knitted by the same fabric, and the pattern color of the fabric is more colorful, and the product has reasonable structural design, convenient mounting and debugging, reliable transmission, compact and beautiful structure.

In order to solve the technical problems, the invention adopts the technical scheme that,

parallel yarn thick stick yarn feeding device, including yarn feeding device, left side supporting seat and right side supporting seat, left side supporting seat, right side supporting seat fixed mounting is on yarn feeding device's lower terminal surface, yarn feeding device includes hold-in range straining device, hold-in range actuating mechanism and many yarn thick sticks, yarn thick stick parallel arrangement is at hold-in range straining device, between the hold-in range actuating mechanism, outside cover at every yarn thick stick is equipped with many hold-in ranges, every hold-in range respectively with hold-in range straining device, hold-in range actuating mechanism independently is connected, it is corresponding, install the yarn feeder with every hold-in range looks adaptation on the yarn thick stick, hold-in range straining device includes mounting plate group, tensioning slider and take-up pulley, the take-up pulley rotates and installs on tensioning slider, install on mounting plate group with adjustable.

Further, the mounting plate group is including leaning on establishing board and regulating plate, and regulating plate fixed mounting leans on establishing board and regulating plate fixed connection on the left side supporting seat, and the shaping has the slider groove on the regulating plate, and tensioning slider slidable mounting is in the slider groove, and tensioning slider with lean on establishing the board and be connected, slider groove quantity and tensioning slider quantity are unanimous.

Furthermore, an adjusting groove is fixedly formed by the leaning plate, an adjusting fixing screw rod is slidably mounted in the adjusting groove and connected with the tensioning sliding block, an adjusting screw rod is mounted on the side wall of the adjusting plate, and the adjusting screw rod is rotatably connected with the tensioning sliding block.

Furthermore, the yarn bar is I-shaped, guide grooves are formed in the upper end face and the lower end face of the yarn bar, guide rods are fixedly installed in the guide grooves, and the yarn feeders are installed on the guide rods in a sliding mode.

Furthermore, the upper end face of each yarn bar is fixedly connected with a connecting plate, guide grooves are formed in the two sides, located on the connecting plates, of the yarn bars in an all-excavated mode, and the connecting plates are fixedly connected with reinforced connecting plates.

Furthermore, a fixed rib plate is fixedly connected to the right side supporting seat, an installation step is formed on the fixed rib plate, the synchronous belt driving mechanism is fixedly installed on the installation step, a limiting head is fixedly connected to the interior of the installation step, and the number of the installation steps is consistent with that of yarn feeders on each yarn bar.

Furthermore, the synchronous belt driving mechanism comprises a driving motor, a motor mounting plate and a synchronous wheel, the driving motor is fixedly mounted on the motor mounting plate, the number of the driving motors is consistent with that of the yarn feeders, the motor mounting plate is fixedly mounted in the mounting ladder, a limiting head is fixedly connected in the mounting ladder and limits the motor mounting plate, and the synchronous wheel is welded and mounted on the driving motor.

Further, the yarn feeder comprises a belt connecting plate, a pulley assembly, a belt clamp, a Usne handle, a porcelain eye and a yarn nozzle, wherein the Usne handle is installed on the belt connecting plate, the pulley assembly is installed on the belt connecting plate, the Usne handle comprises an installation part, a connecting part and a yarn nozzle part, the installation part is fixedly connected with the belt connecting plate, two ends of the connecting part are respectively connected with the yarn nozzle part and the installation part, the yarn nozzle is installed on the yarn nozzle part, and the porcelain eye is installed on the installation part.

Further, the pulley assembly comprises an upper end roller, a lower end roller piece and a lower end roller adjusting piece, the upper end roller is fixedly installed on the belt connecting plate through a roller bolt, the lower end roller piece is rotatably installed on the belt connecting plate, and the lower end roller adjusting piece is matched with the lower end roller piece.

Furthermore, the lower roller part comprises a roller seat, a lower roller and a shoulder screw, the lower roller is rotatably mounted on the roller seat, the roller seat is rotatably mounted on the belt connecting plate through the shoulder screw, an adjusting part connecting groove is formed in the roller seat, and the lower roller adjusting part is connected with the adjusting part connecting groove.

The intelligent running type yarn feeding device has the advantages that more yarn bars are additionally arranged in a limited space, the requirements on the design of an external machine head overbridge and the bending angle design and installation precision of each Wusi handle are higher, so that the number of yarn feeders for intarsia knitting can be increased, more yarn feeders can be conveniently additionally arranged in the limited space, more colored fabrics can be conveniently produced, the structural design of the product is reasonable, the installation and debugging are convenient, the transmission is reliable, and the structure is compact and attractive.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic half-section of the present invention.

Fig. 3 is a schematic diagram of a timing belt tensioning mechanism.

Fig. 4 is a schematic view of the structure of the mounting plate set.

Fig. 5 is a schematic diagram of the structure of the timing belt drive mechanism.

Fig. 6 is a schematic structural view of the driving motor.

Fig. 7 is a schematic view of a developed structure of the yarn feeder.

Fig. 8 is a schematic view of the angle of the yarn feeder of the present invention.

Reference numerals: a yarn feeding device 1, a left side support seat 2, a right side support seat 3, a synchronous belt tensioning mechanism 4, a synchronous belt driving mechanism 5, a yarn bar 6, a synchronous belt 7, a yarn feeder 8, a mounting plate group 9, a tensioning slider 10, a tensioning wheel 11, a leaning plate 12, an adjusting plate 13, a slider groove 14, a reinforcing connecting plate 15, an adjusting groove 16, an adjusting fixing screw 17, an adjusting screw 18, a guide groove 19, a guide rod 20, a connecting plate 21, a fixing rib plate 22, a mounting step 23, a driving motor 24, a motor mounting plate 25, a synchronous wheel 26, a limit head 27, a belt connecting plate 28, a pulley assembly 29, a belt clamp 30, a Usso handle 31, a porcelain eye 32, a yarn mouth 33, a mounting part 34, a connecting part 35, a yarn mouth part 36, an upper end roller 37, a lower end roller piece 38, a lower end roller adjusting piece 39, a roller seat 40, a lower end roller 41, a shaft shoulder screw 42, an adjusting piece connecting groove 43, a tensioning wheel groove 44, an adjusting screw groove 45, a connecting lug 46, an adjusting clamping block 47, a clamping rod 48, a limiting plate 49, a clamping plate mounting hole 50, a first clamping plate 51, a second clamping plate 52, a first yarn feeder 53, a second yarn feeder 54, a third yarn feeder 55, a fourth yarn feeder 56 and a fifth yarn feeder 57.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

A parallel yarn feeding device comprises a yarn feeding device 1, a left side supporting seat 2 and a right side supporting seat 3, wherein the left side supporting seat 2 and the right side supporting seat 3 are fixedly arranged on the lower end face of the yarn feeding device 1, the yarn feeding device 1 comprises a synchronous belt tensioning mechanism 4, a synchronous belt driving mechanism 5 and a plurality of yarns 6, the yarns 6 are parallelly arranged between the synchronous belt tensioning mechanism 4 and the synchronous belt driving mechanism 5, a plurality of synchronous belts 7 are sleeved on the outer side of each yarn 6, each synchronous belt 7 is independently connected with the synchronous belt tensioning mechanism 4 and the synchronous belt driving mechanism 5 respectively, correspondingly, a yarn feeder 8 matched with each synchronous belt 7 is arranged on each yarn 6, each synchronous belt tensioning mechanism 4 comprises a mounting plate group 9, a tensioning slide block 10 and a tensioning wheel 11, the tensioning wheel 11 is rotatably arranged on the tensioning slide block 10, and the tensioning slide block 10 is adjustably arranged on the mounting plate group 9, more yarn bars are additionally arranged in a limited space, more yarn feeders are additionally arranged in the limited space, more colored fabrics are conveniently produced, the structural design of the product is reasonable, the installation and debugging are convenient, the transmission is reliable, and the structure is compact and attractive.

In this embodiment, five yarn bars are installed in the yarn feeding device 1, and four yarn feeders 8 are installed on each yarn bar 6, so that 20 yarn feeders can be installed in a limited space, and yarns of more color systems can be fed conveniently, and fabrics of more color types can be produced.

Mounting plate group 9 is including leaning on establishing board 12 and regulating plate 13, regulating plate 13 fixed mounting is on left side supporting seat 2, lean on establishing board 12 and regulating plate 13 fixed connection, the shaping has slider groove 14 on the regulating plate 13, tensioning slider 10 slidable mounting is in slider groove 14, tensioning slider 10 with lean on establishing board 12 and be connected, slider groove 14 quantity is unanimous with tensioning slider 10 quantity, form the installation cavity between slider groove 14 and the regulating plate 13, thereby be convenient for install tensioning slider 10, adjust tensioning slider 10 through regulating plate 13, fix tensioning slider 10 through leaning on establishing board 12.

An adjusting groove 16 is fixedly formed by the leaning plate 12, an adjusting fixing screw 17 is slidably mounted in the adjusting groove 16, the adjusting fixing screw 17 is connected with the tensioning slide block 10, so that the adjusting direction of the tensioning slide block 10 can be conveniently guided, the tensioning slide block 10 can be conveniently locked and fixed after tensioning, an adjusting screw 18 is mounted on the side wall of the adjusting plate 13, and the adjusting screw 18 is rotatably connected with the tensioning slide block 10 so that the tensioning of the tensioning wheel can be conveniently carried out through the adjusting screw 18.

In some preferred modes, a tensioning wheel groove 44 is dug in the tensioning sliding block 10, the tensioning wheel 11 is rotatably installed in the tensioning wheel groove 44, an adjusting screw groove 45 is formed in the side wall of the tensioning sliding block 10, and the adjusting screw 18 is matched with the adjusting screw groove 45 to facilitate the adjustment of the tensioning sliding block 10.

The yarn bar 6 is i-shaped, guide grooves 19 are formed in the upper and lower end surfaces of the yarn bar 6, guide rods 20 are fixedly mounted in the guide grooves 19, the yarn feeder 8 is slidably mounted on the guide rods 20, the moving direction of the yarn feeder 8 is guided by the guide rods 20, and the yarn feeder 8 is prevented from falling off the yarn bar 6.

The up end fixedly connected with connecting plate 21 of yarn thick stick 6, yarn thick stick 6 are located the both sides of connecting plate 21 and all dig and be equipped with guide way 19, and fixedly connected with connection plate 15 on the connecting plate 21 is convenient for further fix every yarn thick stick 6 through the setting of connection plate 15, improves the stability of yarn thick stick 6.

The right side supporting seat 3 is fixedly connected with a fixed rib plate 22, an installation step 23 is formed on the fixed rib plate 22, the synchronous belt driving mechanism 5 is fixedly installed on the installation step 23, a limiting head 27 is fixedly connected in the installation step 23, the number of the installation step 23 is consistent with that of the yarn feeders 8 on each yarn bar 6, and the driving motor 24 can be conveniently and sequentially installed from high to low through the installation step 23.

The synchronous belt driving mechanism 5 comprises a driving motor 24, a motor mounting plate 25 and a synchronous wheel 26, the driving motor 24 is fixedly mounted on the motor mounting plate 25, the number of the driving motors 24 on each mounting step 23 is consistent with the number of the yarn feeders 8, the motor mounting plate 25 is fixedly mounted in the mounting steps 23, a limiting head 27 is fixedly connected in the mounting steps 23, the limiting head 27 limits the motor mounting plate 25, and the synchronous wheel 26 is fixedly welded on the driving motor 24.

In some preferred modes, the side wall of the motor mounting plate 25 is fixedly connected with a connecting lug 46, a fixing screw is installed in the connecting lug 46, the connecting lugs 46 are respectively connected to opposite vertex angles of the motor mounting plate 25, and due to the fact that the thickness of the fixing rib plate 22 is limited, the connecting lugs 46 are arranged on the opposite vertex angles, and therefore adjacent motor mounting plates 25 can be conveniently installed in a staggered mode.

The yarn feeders 8 comprise belt connecting plates 28, pulley assemblies 29, belt clamps 30, Uss handles 31, porcelain eyes 32 and yarn mouths 33, the Uss handles 31 are installed on the belt connecting plates 28, the pulley assemblies 29 are installed on the belt connecting plates 28, each Uss handle 31 comprises a mounting portion 34, a connecting portion 35 and a yarn mouth portion 36, the mounting portion 34 is fixedly connected with the belt connecting plates 28, two ends of the connecting portion 35 are respectively connected with the yarn mouth portion 36 and the mounting portion 34, the yarn mouths 33 are installed on the yarn mouth portions 36, the porcelain eyes 32 are installed on the mounting portions 34, and when the yarn feeders are actually installed, collision between adjacent yarn feeders 8 is prevented by changing the inclination angles among the mounting portions 34, the connecting portions 35 and the yarn mouth portions 36 in each yarn feeder 8, and the running stability of the yarn feeding device is improved.

The pulley assembly 29 comprises an upper roller 37, a lower roller 38 and a lower roller adjusting member 39, the upper roller 37 is fixedly mounted on the belt connecting plate 28 through a roller bolt, the lower roller 38 is rotatably mounted on the belt connecting plate 28, the lower roller adjusting member 39 is matched with the lower roller 38, and the upper roller 37 and the lower roller 38 are conveniently mounted on the guide rod 20 through the arrangement of the lower roller adjusting member 39, so that the yarn feeder 8 is conveniently mounted, the mounting stability of the yarn feeder 8 is improved, and the yarn feeder is prevented from slipping off the guide rod 20.

The lower roller member 38 includes a roller seat 40, a lower roller 41 and a shoulder screw 42, the lower roller 41 is rotatably mounted on the roller seat 40, the roller seat 40 is rotatably mounted on the belt connecting plate 28 via the shoulder screw 42, an adjusting member connecting groove 43 is formed on the roller seat 40, and the lower roller adjusting member 39 is connected with the adjusting member connecting groove 43. The arrangement of the roller seat 40 facilitates the adjustment of the relative position of the lower roller 41, and thus the adjustment of the distance between the lower roller 41 and the upper roller 37, and thus the installation of the yarn feeder 8.

In some preferred modes, the lower roller adjusting part 39 comprises an adjusting clamping block 47 and a clamping rod 48, a limiting plate 49 is fixedly connected to the belt connecting plate 28, the clamping rod 48 is installed on the limiting plate 49, the adjusting clamping block 47 is matched with the limiting plate 49, so that the clamping rod 48 is conveniently clamped between the adjusting clamping block 47 and the limiting plate 49, and preferably, two ends of the clamping rod 48 are respectively inserted into the adjusting part connecting grooves 43.

In some preferred modes, a plurality of sets of clamping plate mounting holes 50 are dug in the belt connecting plate 28, the belt clamp 30 is connected with the clamping plate mounting holes 50 through bolts, preferably, the belt clamp 30 includes a first clamping plate 51 and a second clamping plate 52, the first clamping plate 51 and the second clamping plate 52 are fixedly connected through screws, the synchronous belt is clamped between the first clamping plate 51 and the second clamping plate 52, and the first clamping plate 51 is connected with the clamping plate mounting holes 50 through screws.

On the premise of not increasing the original volume of the yarn feeding device, in order to increase the color types of fabrics, 20 yarn feeders are installed in the yarn feeding device, 4 yarn feeders are installed on each yarn bar, namely 2 yarn feeders are installed on two sides of each yarn bar 6, so that the installation is convenient, the yarn feeders on the adjacent yarn bars 6 are prevented from colliding with each other, the two yarn feeders on the same yarn bar 6 are consistent in structure, and in order to simplify the structure, the structures of the yarn feeders are symmetrically arranged about the central plane of the middle yarn bar 6.

In this embodiment, the yarn feeders include a first yarn feeder 53, a second yarn feeder 54, a third yarn feeder 55, a fourth yarn feeder 56 and a fifth yarn feeder 57, wherein an included angle between the mounting portion 34 and the connecting portion 35 on the first yarn feeder 53 is 99 ° to 113 °, and an included angle between the connecting portion 35 and the nozzle portion 36 is 139.5 ° to 143.5 °; the included angle between the mounting part 34 and the connecting part 35 on the second yarn feeder 54 is 115-121 degrees, the included angle between the connecting part 35 and the yarn nozzle part 36 is 139-143 degrees, the included angle between the mounting part 34 and the connecting part 35 on the third yarn feeder 55 is 123.5-127.5 degrees, and the included angle between the connecting part 35 and the yarn nozzle part 36 is 140.5-144.5 degrees; the included angle between the mounting part 34 and the connecting part 35 on the fourth yarn feeder 56 is 141-145 degrees, and the included angle between the connecting part 35 and the yarn mouth part 36 is 151-155 degrees; the angle between the mounting portion 34 and the connecting portion 35 of the fifth yarn feeder 57 is 152 to 156 degrees, the angle between the connecting portion 35 and the nozzle portion 36 is 155 to 159 degrees, and the length of the mounting portion 34 is adjusted by the above-mentioned angle setting so that the nozzles 33 of each yarn feeder are positioned on the same straight line.

In a most preferred embodiment, the angle between the mounting portion 34 and the connecting portion 35 of the first yarn feeder 53 is 111 °, and the angle between the connecting portion 35 and the nozzle portion 36 is 141.5 °; an included angle between the mounting portion 34 and the connecting portion 35 of the second yarn feeder 54 is 117 °, an included angle between the connecting portion 35 and the yarn mouth portion 36 is 141 °, an included angle between the mounting portion 34 and the connecting portion 35 of the third yarn feeder 55 is 125.5 °, and an included angle between the connecting portion 35 and the yarn mouth portion 36 is 142.5 °; an included angle between the mounting portion 34 and the connecting portion 35 of the fourth yarn feeder 56 is 143 °, and an included angle between the connecting portion 35 and the yarn mouth portion 36 is 153 °; the angle between the mounting portion 34 and the connecting portion 35 of the fifth yarn feeder 57 is 154 DEG, and the angle between the connecting portion 35 and the nozzle portion 36 is 157 DEG

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the terms corresponding to the reference numerals in the figures are used more herein, the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.