CN210085712U - Weft laying device of warp knitting machine - Google Patents

Abstract

A weft laying device of a warp knitting machine comprises a machine base, a weft unwinding mechanism, a weft laying trolley, a translation guide rail, a translation seat driving mechanism and a material storage mechanism, wherein the translation seat is installed on the translation guide rail and is in sliding fit with the translation guide rail; storage mechanism locates between woof unwinding mechanism and the weft laying dolly, storage mechanism includes two threading boards, a plurality of fixed yarn guide rollers, at least one removes yarn guide roller and at least one removal yarn guide roller guiding mechanism, be equipped with a plurality of yarn holes of wearing on the threading board, each fixed yarn guide roller is in between two threading boards, remove yarn guide roller guiding mechanism and include two lifting guide and two lifting slide, lifting slide installs on the lifting guide who corresponds and can follow lifting guide and slide from top to bottom, remove the both ends of yarn guide roller respectively with two lifting slide rotatable coupling that correspond. The weft laying device can play a role in storing weft yarns in the weft laying process, and meanwhile, the weft yarns are automatically kept in a tensioning state.

Description

Weft laying device of warp knitting machine

Technical Field

The utility model relates to a textile machinery, concretely relates to shop latitude device of tricot machine.

Background

Knitting is carried out by simultaneously looping one or more sets of parallel aligned yarns on all the active needles of a warp-feed machine, a process known as warp knitting and a machine for carrying out this knitting known as a warp knitting machine.

The chinese utility model patent with application number CN201120371227.9 discloses a weft laying mechanism of a warp knitting machine with a weft laying trolley, which comprises a first guide rail, a first slide block, a second slide block, a weft laying trolley and a driving device which are arranged along the longitudinal direction of the warp knitting machine; one side of the first sliding block is connected with the first guide rail in a sliding mode, the other side of the first sliding block is fixedly connected with the weft laying trolley, the driving device drives the first sliding block and the weft laying trolley to do longitudinal weft laying motion through the transmission mechanism, the two second sliding blocks are connected with the cross beam guide rails on the two transverse sides of the warp knitting machine in a sliding mode respectively, and the weft laying mechanism further comprises a weft laying trolley auxiliary supporting mechanism used for auxiliary supporting of the weft laying trolley. During weaving, a plurality of weft yarns led out from the weft yarn frame are sent to the weft laying trolley, and the driving device drives the first sliding block and the weft laying trolley to do longitudinal weft laying motion through a transmission mechanism such as a synchronous wheel and a synchronous belt transmission mechanism, so that the weft laying procedure is finished. However, in the weft laying process, the weft creel generally adopts a pulling and passive unwinding mode to pay out weft yarns, so that when the distance between the weft laying trolley and the weft creel is short, the weft yarns are often pulled to be over-tight; when the distance between the weft laying trolley and the weft creel is long, redundant weft yarns can be released under the inertia of unwinding of the weft creel, so that the weft yarns between the weft laying trolley and the weft creel are too loose, and the weaving quality of the fabric is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a shop latitude device of tricot machine is provided, this kind of shop latitude device can play the effect of storing the woof spreading the latitude in-process, makes the woof keep the tensioning state automatically simultaneously, realizes carrying out effective control to the tension size of woof, is favorable to guaranteeing the weaving quality of fabric. The technical scheme is as follows:

the utility model provides a weft laying device of warp knitting machine, which comprises a base, woof unwinding mechanism, the weft laying dolly, the translation guide rail, the translation seat, can drive the translation seat actuating mechanism of translation seat along translation guide rail fore-and-aft translation, woof unwinding mechanism, translation guide rail and translation seat actuating mechanism all install on the frame, the translation guide rail sets up along the fore-and-aft direction, the translation seat install on the translation guide rail and with translation guide rail sliding fit, the translation seat is connected with translation seat actuating mechanism's power take off end transmission, the weft laying dolly is located on the translation seat, a serial communication port: the weft laying device also comprises a material storage mechanism; the storage mechanism is arranged between the weft yarn unwinding mechanism and the weft laying trolley along the conveying direction of weft yarns; the storage mechanism comprises two yarn threading plates, a plurality of fixed yarn guide rollers, at least one movable yarn guide roller and at least one movable yarn guide roller guide mechanism, the two yarn threading plates are arranged on the machine base and are arranged side by side from front to back, a plurality of yarn threading holes are arranged on the yarn threading plates side by side from left to right, each fixed yarn guide roller can be rotatably arranged on the machine base and is positioned between the two yarn threading plates, and the plurality of fixed yarn guide rollers are sequentially arranged from front to back; the movable yarn guide roller guide mechanism is the same as the movable yarn guide rollers in quantity and corresponds to the movable yarn guide rollers one by one, the movable yarn guide roller guide mechanism comprises two lifting guide rails and two lifting slide blocks, the two lifting guide rails are installed on the machine base and are arranged side by side in the left-right direction, the two lifting slide blocks correspond to the two lifting guide rails one by one, the lifting slide blocks are installed on the corresponding lifting guide rails and can slide up and down along the lifting guide rails, and the two ends of the movable yarn guide rollers are respectively connected with the two corresponding lifting slide blocks in a rotatable mode.

Generally, the weft unwinding mechanism adopts a weft creel, and the weft is unwound passively by pulling.

When the weft yarn unwinding mechanism works, a plurality of weft yarns released from the weft yarn unwinding mechanism firstly pass through each yarn passing hole in one of the yarn passing plates, then pass through each movable yarn guide roller and each fixed yarn guide roller, then pass through each yarn passing hole in the other yarn passing plate, and finally are sent to the weft laying trolley; the translation seat driving mechanism drives the translation seat and the weft laying trolley to reciprocate back and forth along the translation guide rail, and the weft laying trolley completes the weft laying process. When the distance between the weft yarn unwinding mechanism and the weft yarn unwinding mechanism is far, weft yarns between the weft yarn unwinding mechanism and the weft yarn unwinding mechanism become loose, each lifting slide block and the movable yarn guide roller on the lifting slide block slowly descend along the corresponding lifting guide rail under the action of self gravity, and the length of the weft yarns wound between each movable yarn guide roller and each fixed yarn guide roller is gradually increased along with the gradual increase of the distance between each movable yarn guide roller and each fixed yarn guide roller, so that the weft yarns are automatically kept in a tensioning state, and meanwhile, redundant weft yarns discharged by the weft yarn unwinding mechanism can be stored. When the distance between the weft yarn unwinding mechanism and the weft yarn unwinding mechanism is short, the length of weft yarn between the weft yarn unwinding mechanism and the weft yarn unwinding mechanism is shortened, under the action of the pulling force of the weft yarn unwinding mechanism, the weft yarn wound between each movable yarn guide roller and each fixed yarn guide roller drives each lifting slide block and the movable yarn guide roller on the lifting slide block to slowly lift upwards along the corresponding lifting guide rail, so that the distance between each movable yarn guide roller and each fixed yarn guide roller is gradually reduced, and the weft yarn stored in the storage mechanism is conveyed to the weft yarn unwinding mechanism. The weft laying device can complete the weft laying process through the cooperation of the weft unwinding mechanism, the weft laying trolley, the translation guide rail, the translation seat and the translation seat driving mechanism; and set up storage mechanism between woof unwinding mechanism and shop latitude dolly, can play the effect of storing the woof at shop latitude in-process, make the woof keep the tensioning state automatically simultaneously, realize carrying out effective control to the tension size of woof, be favorable to guaranteeing the weaving quality of fabric.

Usually, the respective moving guide roller is located at the lower side of the respective fixed guide roller.

Preferably, the number of the movable yarn guide rollers is one less than that of the fixed yarn guide rollers, and the position of the movable yarn guide roller corresponds to the gap between two adjacent fixed yarn guide rollers. In general, the number of fixed and movable guide rollers can be set according to the length of weft yarn to be stored.

In a preferred embodiment, the lifting guide rail is disposed in a vertical direction. Therefore, the lifting slide block and the movable yarn guide roller on the lifting slide block can be lifted on the lifting guide rail more smoothly. The stroke of the lifting guide rail can be set according to the length of the weft yarn to be stored. The stroke of the lifting guide rail and the number of the fixed yarn guide rollers and the movable yarn guide rollers jointly determine the total length of the weft yarns which can be stored by the storage mechanism.

In the preferred scheme, the upper end and the lower end of the lifting guide rail are respectively connected with the machine base through self-aligning bearing seats. The self-aligning bearing seat is mainly used for compensating concentricity errors caused by processing, mounting and shaft deformation, and two lifting guide rails in the same movable yarn guide roller guide mechanism are parallel to each other so as to ensure that each lifting slide block and the movable yarn guide roller on the lifting slide block can smoothly ascend or descend on the corresponding lifting guide rail.

In a more preferable scheme, an upper buffer spring and a lower buffer spring are sleeved on the lifting guide rail, and the lifting slide block is arranged between the upper buffer spring and the lower buffer spring. Generally, an upper buffer spring and a lower buffer spring are fixedly installed at the upper end and the lower end of the lifting rail, respectively. The upper buffer spring is mainly used for relieving the impact force generated to the aligning bearing seat in the ascending process of the lifting slide block, and the lower buffer spring is mainly used for relieving the impact force generated to the aligning bearing seat in the descending process of the lifting slide block.

In a preferable scheme, a ceramic eye is installed in the yarn threading hole. The ceramic eye is used for reducing the friction force generated when the weft yarn slides, so that the weft yarn is conveyed more smoothly.

In a preferred scheme, the translation seat driving mechanism comprises a translation motor, a driving pulley, a driven pulley and an annular belt, wherein the translation motor is mounted on the base; the annular belt is provided with two straight line sections in the front-back direction, and the translation seat is connected with one straight line section of the annular belt. When the weft laying trolley works, the translation motor drives the driving belt wheel to rotate in a reciprocating mode, and the translation seat and the weft laying trolley are driven to translate back and forth along the translation guide rail in a reciprocating mode through the straight line section of the annular belt.

In another preferred scheme, the translation seat driving mechanism comprises a translation cylinder, a cylinder body of the translation cylinder is mounted on the base and arranged along the front-back direction, and a piston rod of the translation cylinder is connected with the translation seat. Therefore, the translation seat and the weft laying trolley are driven to reciprocate back and forth along the translation guide rail by the extension and contraction of the piston rod of the translation cylinder.

The weft laying trolley can adopt the conventional mechanism. In a specific scheme, the weft laying trolley comprises a trolley frame consisting of a top plate and two side plates, a first guide rod seat positioned on one side plate in an inner cavity of the trolley frame, a first tension rod seat fixedly connected with the first guide rod seat, and a tension rod, wherein one end of the tension rod is rotatably connected with the first tension rod seat, and the first guide rod seat is detachably connected with one side plate in the inner cavity of the trolley frame; a second guide rod seat is also detachably connected to the other side plate of the inner cavity of the trolley frame; a second tension rod seat is further arranged between the second guide rod seat and the tension rod, the second tension rod seat is fixedly connected with the second guide rod seat, and the other end of the tension rod is rotatably connected with the second tension rod seat; the top plate and the two side plates, which constitute the frame of the trolley, may be one piece. The specific structure can refer to the Chinese patent specification with the application number of CN 200810156095.0.

The weft laying device of the utility model can complete the laying process of weft yarns through the cooperation of the weft yarn unwinding mechanism, the weft laying trolley, the translation guide rail, the translation seat and the translation seat driving mechanism; and through set up storage mechanism between woof unwinding mechanism and shop latitude dolly, can play the effect of storing the woof at shop latitude in-process, make the woof keep the tensioning state automatically simultaneously, realize carrying out effective control to the tension size of woof, be favorable to guaranteeing the weaving quality of fabric.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a schematic structural view of a storing mechanism in the weft laying device shown in fig. 1.

Fig. 3 is a top view of fig. 2.

Detailed Description

As shown in fig. 1, the weft laying device of the warp knitting machine comprises a machine base 1, a weft unwinding mechanism 2, a weft laying trolley 3, a translation guide rail 4, a translation seat 5 and a translation seat driving mechanism (not shown in the figure) capable of driving the translation seat 5 to translate back and forth along the translation guide rail 4, wherein the weft unwinding mechanism 2, the translation guide rail 4 and the translation seat driving mechanism are all arranged on the machine base 1, the translation guide rail 4 is arranged along the back and forth direction, the translation seat 5 is arranged on the translation guide rail 4 and is in sliding fit with the translation guide rail 4, the translation seat 5 is in transmission connection with a power output end of the translation seat driving mechanism, and the weft laying trolley 3 is arranged on the translation seat 5; the weft paving device further comprises a material storing mechanism 6, and the material storing mechanism 6 is arranged between the weft yarn unwinding mechanism 2 and the weft paving trolley 3 along the conveying direction of the weft yarns 21.

In this embodiment, the translation seat driving mechanism includes a translation motor, a driving pulley, a driven pulley and an endless belt, the translation motor is installed on the base 1, the driving pulley and the driven pulley are rotatably installed on the base 1, the driving pulley is in transmission connection with a power output shaft of the translation motor, and the driving pulley and the driven pulley jointly tension the endless belt; the annular belt is provided with two straight line sections in the front-back direction, and the translation seat 5 is connected with a straight line section of the annular belt.

Referring to fig. 2 and 3, the storage mechanism 6 includes two threading plates 61, a plurality of fixed guide rollers 62, at least one movable guide roller 63 and at least one movable guide roller guide mechanism 64, the two threading plates 61 are both mounted on the machine base 1 and are arranged side by side from front to back, a plurality of threading holes are arranged side by side from left to right on the threading plates 61, and ceramic eyes 611 are mounted in the threading holes; each fixed yarn guide roller 62 can be rotatably arranged on the machine base 1 and is positioned between the two yarn threading plates 61, and the plurality of fixed yarn guide rollers 62 are sequentially arranged from front to back; the movable yarn guide roller guide mechanisms 64 are the same in number and correspond to the movable yarn guide rollers 63 one by one, each movable yarn guide roller guide mechanism 64 comprises two lifting guide rails 641 and two lifting slide blocks 642, the two lifting guide rails 641 are installed on the machine base 1 and are arranged side by side on the left and right, the two lifting slide blocks 642 are in one-to-one correspondence with the two lifting guide rails 641, the lifting slide blocks 642 are installed on the corresponding lifting guide rails 641 and can slide up and down along the lifting guide rails 641, and two ends of each movable yarn guide roller 63 are rotatably connected with the corresponding two lifting slide blocks 642 respectively.

In this embodiment, each moving guide roller 63 is located on the underside of each fixed guide roller 62. The number of the movable guide rollers 63 is one less than the number of the fixed guide rollers 62, and the position of the movable guide rollers 63 corresponds to the gap between two adjacent fixed guide rollers 62.

In this embodiment, each lifting guide 641 is disposed along the vertical direction, and the upper end and the lower end of each lifting guide 641 are respectively connected to the base 1 through the aligning bearing seat 643. An upper buffer spring 644 and a lower buffer spring 645 are sleeved on the lifting guide rail 641, the upper buffer spring 644 and the lower buffer spring 645 are fixedly installed at the upper end and the lower end of the lifting guide rail 641 respectively, and the lifting slider 642 is located between the upper buffer spring 644 and the lower buffer spring 645. The upper buffering spring 644 is mainly used for buffering impact force generated to the adjusting shaft seat 643 during ascending of the lifting slider 642, and the lower buffering spring 645 is mainly used for buffering impact force generated to the adjusting shaft seat 643 during descending of the lifting slider 642.

In this embodiment, a ceramic eye 611 is installed in the threading hole. The ceramic eye 611 serves to reduce the friction force generated when the weft yarn 21 slides, and to make the transportation of the weft yarn 21 smoother.

The working principle of the weft laying device is briefly described as follows:

during operation, a plurality of weft yarns 21 released from the weft yarn unwinding mechanism 2 firstly pass through each ceramic eye 611 on one of the threading plates 61, then pass around each movable yarn guide roller 63 and each fixed yarn guide roller 62, then pass through each ceramic eye 611 on the other threading plate 61, and finally are sent to the weft laying trolley 3; the translation motor drives the driving belt wheel to rotate in a reciprocating mode, the translation seat 5 and the weft laying trolley 3 are driven to move back and forth in a reciprocating mode along the translation guide rail 4 through the straight line section of the annular belt, and the weft laying trolley 3 completes the laying process of weft 21. When the distance between the weft yarn unwinding mechanism 2 and the weft yarn unwinding trolley 3 is relatively long, the weft yarn 21 between the weft yarn unwinding mechanism 2 and the weft yarn unwinding mechanism 3 becomes loose, each lifting slide block 642 and the movable yarn guide roller 63 thereon slowly descend along the corresponding lifting guide rail 641 under the action of self gravity, and as the distance between each movable yarn guide roller 63 and each fixed yarn guide roller 62 is gradually increased, the length of the weft yarn 21 wound between each movable yarn guide roller 63 and each fixed yarn guide roller 62 is also gradually increased, so that the weft yarn 21 is automatically kept in a tensioned state, and meanwhile, redundant weft yarn 21 released by the weft yarn unwinding mechanism 2 can be stored. When the distance between the weft yarn unwinding mechanism 2 and the weft yarn unwinding trolley 3 is short, the length of the weft yarn 21 between the weft yarn unwinding mechanism 2 and the weft yarn unwinding trolley 3 is shortened, under the action of the pulling force of the weft yarn unwinding trolley 3, the weft yarn 21 wound between each movable yarn guide roller 63 and each fixed yarn guide roller 62 drives each lifting slide block 642 and the movable yarn guide roller 63 thereon to slowly lift back upwards along the corresponding lifting guide rail 641, so that the distance between each movable yarn guide roller 63 and each fixed yarn guide roller 62 is gradually reduced, and the weft yarn 21 stored in the storage mechanism 6 is conveyed to the weft yarn unwinding trolley 3.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims (6)

1. The utility model provides a weft laying device of warp knitting machine, which comprises a base, woof unwinding mechanism, the weft laying dolly, the translation guide rail, the translation seat, can drive the translation seat actuating mechanism of translation seat along translation guide rail fore-and-aft translation, woof unwinding mechanism, translation guide rail and translation seat actuating mechanism all install on the frame, the translation guide rail sets up along the fore-and-aft direction, the translation seat install on the translation guide rail and with translation guide rail sliding fit, the translation seat is connected with translation seat actuating mechanism's power take off end transmission, the weft laying dolly is located on the translation seat, a serial communication port: the weft laying device also comprises a material storage mechanism; the storage mechanism is arranged between the weft yarn unwinding mechanism and the weft laying trolley along the conveying direction of weft yarns; the storage mechanism comprises two yarn threading plates, a plurality of fixed yarn guide rollers, at least one movable yarn guide roller and at least one movable yarn guide roller guide mechanism, the two yarn threading plates are arranged on the machine base and are arranged side by side from front to back, a plurality of yarn threading holes are arranged on the yarn threading plates side by side from left to right, each fixed yarn guide roller can be rotatably arranged on the machine base and is positioned between the two yarn threading plates, and the plurality of fixed yarn guide rollers are sequentially arranged from front to back; the movable yarn guide roller guide mechanism is the same as the movable yarn guide rollers in quantity and corresponds to the movable yarn guide rollers one by one, the movable yarn guide roller guide mechanism comprises two lifting guide rails and two lifting slide blocks, the two lifting guide rails are installed on the machine base and are arranged side by side in the left-right direction, the two lifting slide blocks correspond to the two lifting guide rails one by one, the lifting slide blocks are installed on the corresponding lifting guide rails and can slide up and down along the lifting guide rails, and the two ends of the movable yarn guide rollers are respectively connected with the two corresponding lifting slide blocks in a rotatable mode.

2. Weft laying device for a warp knitting machine according to claim 1, characterized in that: the number of the movable yarn guide rollers is one less than that of the fixed yarn guide rollers, and the position of each movable yarn guide roller corresponds to the gap between every two adjacent fixed yarn guide rollers.

3. Weft laying device for a warp knitting machine according to claim 1, characterized in that: the lifting guide rail is placed along the vertical direction.

4. A weft laying device for a warp knitting machine according to claim 3, characterized in that: the upper end and the lower end of the lifting guide rail are respectively connected with the machine base through aligning bearing seats.

5. Weft laying device for a warp knitting machine according to claim 4, characterized in that: an upper buffer spring and a lower buffer spring are sleeved on the lifting guide rail, and the lifting slide block is arranged between the upper buffer spring and the lower buffer spring.

6. Weft laying device for a warp knitting machine according to any one of claims 1 to 5, characterized in that: and a ceramic hole is arranged in the yarn penetrating hole.

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