CN210856533U - Warp knitting machine transverse moving device - Google Patents

Abstract

The utility model discloses a tricot machine sideslip device, including swing follower conjugate cam mechanism, rocker slider mechanism, sley bar, swing follower conjugate cam mechanism includes conjugate cam and swing arm, conjugate cam includes outer contour line and interior contour line, be equipped with outer roller and interior roller on the swing arm, outer roller is on the outer contour line, interior roller is on interior contour line to make the swing arm contact with conjugate cam all the time, be connected with the connecting rod between swing arm and the sley bar, swing follower conjugate cam mechanism and rocker slider mechanism series connection make up the sideslip device that the degree of freedom is 1. The utility model discloses the swing arm length of well adoption is longer, makes under the same sideslip distance requirement condition, and the pivot angle scope of swing arm is less, like this for the contour line current situation of conjugate cam is better (more close to circularly), and dynamic characteristic is good.

Description

Warp knitting machine transverse moving device

Technical Field

The utility model belongs to the technical field of the tricot machine, a novel tricot machine sideslip device of bundle grass net and fishing net is woven to few sley bar is related to.

Background

Warp knitting machines generally consist of five parts, a looping, traversing, let-off, draw-off take-up and control system, of which the traversing system is one of the important components. The corresponding traversing device of the traversing system has two functions, one is to draw the yarn to realize the yarn laying of the knitting needle, and the second is to form the weft insertion. The existing warp knitting machine generally adopts two transverse moving structures, one is a structural form of a direct-acting cam transverse moving mechanism, and the second is an electronic transverse moving mode.

FIG. 1 shows a schematic diagram of the mechanism motion of the translation mode of the translation cam, 3-1 is the cam, 3-3 is the translation follower, 3-2 is the roller thereon, 3-4 is the stay bar, one end is connected with the translation follower 3-3 by a spherical pair, and the other end is connected with the existing guide bar 3-7 by a spherical pair. The existing guide bar 3-7 has swinging in addition to the shogging, so the straight moving driven piece 3-3 is connected with the existing guide bar 3-7 by a support rod 3-4, and the two ends of the guide bar are spherical pairs. 3-6 is a fishhook fixedly arranged on the existing guide bar 3-7, 3-5 is a steel wire rope, one end is tied on the fishhook 3-6, the other end is tied on the triangular swing arm 3-8, 3-9 is a straight moving rod, and 3-10 is a spring, and the function of recovery is achieved.

The cam 3-1 rotates clockwise, the linear motion follower 3-3 moves leftwards in the pushing section of the cam, the existing guide bar 3-7 is transversely moved leftwards through the support rod 3-4, meanwhile, the steel wire rope 3-5 is pulled leftwards by the existing guide bar 3-7, the triangular swing rod 3-8 swings clockwise, the linear motion rod 3-9 moves upwards, and the spring 3-10 is pressed tightly. In the return section of the cam, the compressed spring 3-10 pushes the straight moving rod 3-9 to move downwards, the triangular swing rod 3-8 swings anticlockwise, the triangular swing rod 3-8 pulls the steel wire rope 3-5 to move to the right side, the existing guide bar 3-7 is further transversely moved to the right side, and meanwhile, the roller 3-2 on the straight moving driven piece 3-3 is ensured to be kept in contact with the transverse moving cam 3-1.

Fig. 2 shows a type of electronic type shogging device, in which 3-11 is a servo motor, 3-12 is a motion conversion device, generally in the form of a screw nut, which converts the rotation of the servo motor 3-11 into the linear motion of the output rod 3-13 to drive the stay rod 3-4 to move linearly, the stay rod 3-4 pushes the existing guide bar 3-7 to move linearly, 3-14 is a return wire rope, 3-7 is an existing guide bar, when the servo motor 3-11 rotates forward and backward, the existing guide bar 3-7 is moved linearly in a reciprocating manner, the motor can be a linear motor, and the motion conversion device 3-12 is not needed.

FIG. 3 shows another type of electronic type shogging device, in which 3-11 are servo motors, 3-15 are shogging pulling belts, 3-16 are guide (bar) needles fixed on the shogging pulling belts 3-15, 3-17 are pulleys, 3-18 are pneumatic springs, and the servo motors 3-11 are rotated forward and backward to realize the reciprocating linear shogging of the guide (bar) needles 3-16.

The traversing modes of the three structures shown in fig. 1, 2 and 3 are the first (fig. 1), one cam corresponds to one process (weaving organization), and if the process is changed, different cams need to be replaced, so the method has poor adaptability to the fabric variety, is particularly suitable for equipment with single weaving process requirement, uncomplicated machine structure and easy replacement of cams, such as a few-bar warp knitting machine. Another disadvantage of this traversing method is that the traversing mechanism is not suitable for the case of large traversing distance because the traversing distance is directly corresponding to the difference between the maximum outer diameter and the minimum outer diameter of the cam, and when the traversing distance is large, the difference between the maximum outer diameter and the minimum outer diameter of the cam is too large, and the motion dynamics performance of the straight-moving driven member (guide bar) is too poor, which affects the operating speed. The second (fig. 2) is adapted to the process by using a servo motor, and can satisfy a requirement for a large traverse distance, but the cost price of the servo motor and the motion converter transmission system is higher than that of the traverse cam transmission system of the first embodiment of fig. 1. The shogging mode is mainly used for shogging of a ground guide bar, a spandex guide bar or a jacquard guide bar of the multi-guide-bar warp knitting machine so as to adapt to the characteristic of high process change requirement of the multi-guide-bar warp knitting machine. The third one (figure 3) has good process adaptability, can have larger shogging distance, is particularly suitable for gathering of the pattern guide bars, is mostly applied to shogging of the pattern guide bars of the multi-bar warp knitting machine, and has the defects of more complex structure and higher cost.

The guide bar shogging device is suitable for few guide bars, large shogging distance, good dynamic performance (beneficial to high speed of the whole machine) and low price cost, obviously, the first mode (figure 1) is poor in dynamic performance and not beneficial to high speed, and the second mode and the third mode are high in cost price. Three sideslip modes commonly used in the present warp knitting machine can not well meet the sideslip requirement of the warp knitting machine to be designed by the utility model.

SUMMERY OF THE UTILITY MODEL

In view of the above, the technical problem to be solved by the present invention is to provide a traverse device with a large traverse distance, which has good dynamic performance and low cost.

The technical scheme of the utility model as follows:

the utility model provides a tricot machine sideslip device, includes swing follower conjugate cam mechanism, rocker slider mechanism, sley bar, swing follower conjugate cam mechanism includes conjugate cam and swing arm, conjugate cam includes outer contour line and interior contour line, be equipped with outer roller and interior roller on the swing arm, outer roller is on outer contour line, interior roller is on interior contour line to make the swing arm contact with conjugate cam all the time, be connected with the connecting rod between swing arm and the sley bar, swing follower conjugate cam mechanism and rocker slider mechanism series connection make up the sideslip device that the degree of freedom is 1.

Still further, the cam shaft is included, and the conjugate cam is mounted on the cam shaft and is driven to rotate when the cam shaft rotates.

Furthermore, the cam comprises two half shafts, the conjugate cam body and the two half shafts are integrated, through holes and threaded holes are formed in the two half shafts respectively, the two half shafts are clamped and fixed on the cam shaft through bolts, and the conjugate cam body is fixed on the cam shaft and rotates together with the cam shaft.

Furthermore, the swing arm is provided with two small shafts, the inner roller and the outer roller are respectively arranged on the small shafts, a rolling bearing is arranged between the inner roller and the small shafts, so that the inner roller rotates relative to one small shaft, and a rolling bearing is arranged between the outer roller and the small shafts, so that the outer roller rotates relative to the other small shaft.

Further, the inner roller and the outer roller are respectively in contact with the inner edge and the outer edge of the conjugate cam to form a kinematic pair, and the oscillating arm is oscillated by the kinematic pair when the conjugate cam rotates.

Furthermore, the swing arm device further comprises a swing arm shaft, wherein a small shaft is installed at one end of the swing arm, the other end of the swing arm is installed on the swing arm shaft, and a rolling bearing is arranged between the swing arm and the swing arm shaft, so that the swing arm can swing relative to the swing arm shaft.

Furthermore, the swing arm device also comprises a base of the whole machine, and the swing arm shaft is fixedly arranged on the base of the whole machine.

The utility model has the advantages that:

1. under the condition that the shogging distance is large, the shogging cam still has a good appearance profile, and the movement of the cam mechanism has good dynamic characteristics, so that the high speed of the whole machine is facilitated.

2. The conjugate cam mechanism is adopted to ensure that the cam and the driven piece are always kept in contact, a driven piece returning device on a common warp knitting machine traversing device is eliminated, the structure of the traversing device is simplified, and the cost is reduced.

3. The whole transverse moving device adopts a mechanical structure, a servo motor is not needed, and the cost of the transverse moving device is reduced.

4. The connecting rod mechanism is adopted to convert the swing into the linear motion, so that the motion conversion by adopting a motion conversion device is avoided, the transmission structure is simplified, and the cost is reduced.

Drawings

FIG. 1 is a direct acting cam traversing mechanism used on prior art machines;

FIG. 2 is an electronic traverse device of the type used in prior art machines;

FIG. 3 is another electronic traverse device used in a prior art machine;

fig. 4 is a cam traversing mechanism of a swing type follower of the new utility model;

FIG. 5 is a front view of an embodiment of a swing follower cam traversing device of the new utility model;

fig. 6 is a side-expanded projection configuration of an embodiment of a swing follower cam traversing device of the new utility model.

Detailed Description

In order to make the technical solutions and advantages of the present invention clearer, the following is further described in detail with reference to the accompanying drawings.

The utility model discloses a concrete thinking does: because the swing arm type driven piece structure is used for the warp knitting machine with few guide bars, the process requirement is simple, if a cam transverse moving device is selected, the cam is convenient to replace, the cost is low, but the dynamic characteristic of the driven piece is poor under the condition of a large transverse moving distance, and therefore, the swing arm type driven piece structure and the moving mode are adopted, and the transverse moving distance of the guide bars corresponds to the chord length corresponding to the swing arc section of the swing arm. Under the condition that the required transverse moving distance is fixed, the longer the length of the swing arm is, the smaller the swing range angle of the swing arm is, and the smaller the fall between the maximum outer diameter and the minimum outer diameter of the corresponding cam profile is, so that the swing range angle of the swing arm is smaller by taking the longer length of the swing arm, and the problem that the dynamic characteristic of a direct-acting driven piece (guide bar) is poor due to the movement of a direct-acting cam mechanism is solved.

Fig. 4 is a schematic structure diagram of the above idea, and 1 is a conjugate cam, which is composed of an outer cam profile 1-1 and an inner cam profile 1-2, where the conjugate cam 1 is adopted, and a return device composed of a triangular swing arm 3-8, a straight moving rod 3-9 and a spring 3-10 in fig. 1 is avoided, so that the cost can be further reduced. The swing follower, namely the motion trail of the point C1 on the swing arm 2-1 is a circular arc, the corresponding chord length is the shogging distance of the guide bar 4, and under the condition that the required shogging distance is fixed, the length of the swing arm 2-1 is taken

When long, on the swing arm 2-1

The smaller the swing range angle, the smaller the difference between the maximum and minimum outer diameters of the corresponding cam profiles.

The swing arm 2-1 is provided with an outer roller 2-2 and an inner roller 2-3, the outer roller 2-2 is arranged on the outer contour line 1-1 of the conjugate cam 1, and the inner roller 2-3 is arranged on the inner contour line 1-2 of the conjugate cam 1, so as to keep the swing arm 2-1 always in contact with the conjugate cam 1. The swing arm 2-1 is connected with the guide bar 4 through a connecting rod 3.

The cam mechanism comprises a conjugate cam 1 (an outer contour line 1-1 and an inner contour line 1-2), a swing arm 2-1, an outer roller 2-2 and an inner roller 2-3, and is an inner and outer edge and swing follower conjugate cam mechanism which is a common mechanical transmission device in a warp knitting machine, parts of the cam mechanism are already generalized, and the cost can be further reduced by adopting the generalized structure. The rocker-slider mechanism consists of an outer roller 2-2, a connecting rod 3 and a guide bar 4. The swing follower conjugate cam mechanism and the rocker slider mechanism are combined in series to form a novel guide bar shogging mechanism for realizing large shogging distance.

Fig. 5 and 6 are front and sectional views of specific embodiments, respectively.

Fig. 5 shows a front view structure of the shogging device, which is composed of a cam shaft 1-3, a conjugate cam 1, an inner roller 2-3, an outer roller 2-2, a swing arm 2-1, a swing arm shaft 6, a connecting rod 3, a guide bar 4, a first guide bar sliding shaft 5, a second guide bar sliding shaft 7 and the like, wherein the connecting rod 3, the guide bar 4, the first guide bar sliding shaft 5 and the second guide bar sliding shaft 7 are structures of a common few-guide-bar warp knitting machine.

Fig. 6 is a side-expanded perspective view of the structure of fig. 5 in section.

The cam shaft 1-3 and the conjugate cam 1 are characterized in that the conjugate cam 1 is fixedly arranged on the cam shaft 1-3, and when the cam shaft 1-3 rotates, the conjugate cam 1 is driven to rotate.

The conjugate cam 1 is composed of a conjugate cam body and two half shafts, the conjugate cam body and the two half shafts are integrated, through holes and threaded holes are formed in the two half shafts respectively, the two half shafts are clamped and fixed on the cam shaft 1 through bolts, and the conjugate cam body is also fixed on the cam shaft 1-3 and rotates together with the cam shaft 1-3.

The rotation of the cam shafts 1-3 is driven by a main shaft of the whole machine through a transmission system.

The inner roller 2-3 and the outer roller 2-2 are arranged on a determined axis of the swing arm 2-1 and can rotate relative to the swing arm 2-1.

The inner rollers 2-3 and the outer rollers 2-2 are respectively arranged on the first small shaft 8 and the second small shaft 12, a first rolling bearing 10 and a second rolling bearing 11 are arranged between the inner rollers 2-3 and the first small shaft 8, so that the inner rollers 2-3 rotate relative to the first small shaft 8, and a third rolling bearing 14 and a fourth rolling bearing 15 are arranged between the outer rollers 2-2 and the second small shaft 12, so that the outer rollers 2-2 rotate relative to the second small shaft 12.

The inner rollers 2-3 and the outer rollers 2-2 are respectively contacted with the inner edge and the outer edge of the conjugate cam 1 to form a motion high pair, and when the conjugate cam 1 rotates, the swing arm 2-1 swings through the motion high pair.

The first small shaft 8 and the second small shaft 12 are fixedly arranged on the swing arm 2-1 through a first nut 9 and a second nut 13 respectively.

One end of the swing arm 2-1 is provided with a first small shaft 8 and a second small shaft 12, the other end of the swing arm 2-1 is arranged on the swing arm shaft 6, and a fifth rolling bearing 16 and a sixth rolling bearing 17 are arranged between the swing arm 2-1 and the swing arm shaft 6, so that the swing arm 2-1 can swing relative to the swing arm shaft 6.

The swing arm shaft 6 is fixedly arranged on a base of the whole machine.

To sum up, the guide bar shogging mechanism of the utility model is a combined mechanism formed by connecting an inner and outer edge conjugate cam mechanism consisting of a conjugate cam 1 (an outer contour line 1-1 and an inner contour line 1-2), a swing arm 2-1, an outer roller 2-2 and an inner roller 2-3 and a rocker slider mechanism consisting of the outer roller 2-2, a connecting rod 3 and a guide bar 4 in series, and is a plane combined mechanism with the degree of freedom of 1. The utility model discloses in the swing arm 2-1 length of adopting longer, make C1 point under the same sideslip distance requirement condition, swing arm 2-1's pivot angle scope is less, like this for conjugate cam 1's contour line current situation is better (more close to circularly), and dynamic characteristic is good.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A traverse device of a warp knitting machine, characterized in that: including swing follower conjugate cam mechanism, rocker slider mechanism, sley bar, swing follower conjugate cam mechanism includes conjugate cam and swing arm, conjugate cam includes outer contour line and interior contour line, be equipped with outer roller and interior roller on the swing arm, outer roller is on the outer contour line, interior roller is on interior contour line to make the swing arm contact with conjugate cam all the time, be connected with the connecting rod between swing arm and the sley bar, swing follower conjugate cam mechanism and rocker slider mechanism series connection make up the sideslip device that the degree of freedom is 1.

2. A warp knitting machine traverse device as claimed in claim 1, characterized in that: the cam shaft is mounted on the conjugate cam, and when the cam shaft rotates, the conjugate cam is driven to rotate.

3. A warp knitting machine traverse device as claimed in claim 1, characterized in that: the conjugate cam comprises a conjugate cam body and two half shafts, wherein the conjugate cam body and the two half shafts are integrated, the two half shafts are respectively provided with a through hole and a threaded hole, and the two half shafts are clamped and fixed on a cam shaft through bolts, so that the conjugate cam body is also fixed on the cam shaft and rotates together with the cam shaft.

4. A warp knitting machine traverse device as claimed in claim 1, characterized in that: the swing arm is provided with two small shafts, the inner roller and the outer roller are respectively arranged on the small shafts, a rolling bearing is arranged between the inner roller and the small shafts, so that the inner roller rotates relative to one small shaft, and the rolling bearing is arranged between the outer roller and the small shaft, so that the outer roller rotates relative to the other small shaft.

5. A warp knitting machine traverse device as claimed in claim 1, characterized in that: the inner roller and the outer roller are respectively contacted with the inner edge and the outer edge of the conjugate cam to form a motion high pair, and when the conjugate cam rotates, the swing arm swings through the motion high pair.

6. A warp knitting machine traverse device as claimed in claim 1, characterized in that: the swing arm device is characterized by further comprising a swing arm shaft, wherein a small shaft is installed at one end of the swing arm, the other end of the swing arm is installed on the swing arm shaft, and a rolling bearing is arranged between the swing arm and the swing arm shaft, so that the swing arm can swing relative to the swing arm shaft.

7. The warp knitting machine traverse device according to claim 6, characterized in that: the swing arm shaft is fixedly arranged on the base of the whole machine.

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