Machine head of intelligent control jacquard glove knitting machine
Technical Field
The invention relates to the technical field of computer glove knitting machines, in particular to a machine head of an intelligent control jacquard glove knitting machine.
Background
The computerized glove knitting machine mainly comprises a frame (wallboard), a needle bed, a machine head and a belt line mechanism, wherein the machine head is used as a core component of the knitting machine, and the structure and the working mode of the computerized glove knitting machine are very important. The machine head is generally composed of a bottom plate, a shell and a cam mechanism, wherein the cam mechanism generally comprises a lifting cam, a density cam, a needle pressing cam and the like, the lifting cam, the density cam and the needle pressing cam are fixedly or movably embedded on the bottom plate, when the machine head reciprocates on a needle bed, the stitch of a knitting needle ascends or descends along the outline of the edge of the cam, and finally knitting of fabrics is completed by cooperation with a sinker.
The defects of the existing machine head are that:
1) The travelling mechanism is mainly characterized in that a guide groove is formed in a guide rail, angular copper is fixed on the machine head and inserted into the guide groove for guiding, so that jumping in the movement process of the machine head is prevented, the angular copper is guided and bears the weight of the machine head, the machine head is easy to wear, and the use effect is not good;
2) The stitch cam is used for controlling the thread quantity of the crochet, and the fabric is sparse as the stitch cam is pressed down deeply, so that the stitch cam is an important component for controlling the fabric density; in order to adjust the fabric density, the position of the stitch cam needs to be correspondingly adjusted, the existing adjusting method is often to manually adjust the cam in the stitch cam transmission structure, and the machine head is relatively inconvenient to adjust due to the compact structure, and the stitch cannot be automatically adjusted in the running process.
3) The needle selecting cam is used for selecting the needle-out state, such as the needle-out length, whether the needle is out or not, and the like, and is generally matched with the big cam and the small cam to act together for needle selection during working. The current needle selection triangle works in the following way: the pneumatic bottom strip (also called rubber strip and needle pressing strip) acts on the bearing, and the bearing controls the linkage of the needle selecting triangle, the large triangle and the small triangle through the lever mechanism, so that the structure is complex, the number of middle parts is too large, the control is unstable, and the maintenance is difficult.
Disclosure of Invention
The invention aims to overcome the defects in the background and provide the machine head of the intelligent control jacquard glove machine, which has the technical characteristics of simple structure, lower cost and convenient adjustment and maintenance.
The technical scheme of the invention is as follows:
the utility model provides a control aircraft nose of jacquard glove knitting machine wisely, includes casing, triangle bottom plate, installs the triangle mechanism on triangle bottom plate and drives whole aircraft nose reciprocating motion's running gear, its characterized in that:
the travelling mechanism comprises a delta-shaped upper guide rail, a lower guide rail and a plurality of bearings arranged on a shell, wherein the lower part of the shell is provided with a positioning bearing matched with the lower guide rail and used for bearing the weight of a machine head, and the upper part of the shell is provided with an adjustable limit bearing matched with the upper guide rail and the lower guide rail and used for guiding;
in the triangular mechanism, a regulating mechanism of the stitch cam comprises a stepping motor, a worm wheel driven by the stepping motor, a first rocker connected with the worm wheel, a split sliding block connected with the first rocker, and the stitch cam connected with the sliding block, wherein a reset spring is arranged on a triangular bottom plate and is connected with the split sliding block;
in the cam mechanism, the linkage mechanism of the needle selection cam comprises an electromagnet, a second rocker arm driven by the electromagnet, a reset seat driven by the second rocker arm, a linkage block connected with the reset seat through a pin shaft, a connecting rod connected with the linkage block through a pin shaft and a cam positioning plate connected with the connecting rod, wherein the needle selection cam, a large cam and a small cam are arranged on the bottom surface of the cam positioning plate.
The upper guide rail and the lower guide rail are horizontally arranged, the protruding portion of the upper guide rail extends downwards in a hanging mode, and the protruding portion of the lower guide rail extends upwards in a hanging mode.
The upper part of the shell is provided with first to third adjustable limit bearings, the first adjustable limit bearing is abutted against the end face of the front end of the upper guide rail, the second adjustable limit bearing is abutted against the bottom face of the front end of the lower guide rail, and the third adjustable limit bearing is abutted against the rear side face of the protruding part; fourth to sixth adjustable limit bearings are arranged at the lower part of the shell, the fourth adjustable limit bearing abuts against the end face of the front end of the lower guide rail, the fifth adjustable limit bearing abuts against the bottom face of the lower guide rail, and the sixth adjustable limit bearing abuts against the rear side face of the protruding portion.
The positioning bearing is abutted against the top surface of the front end of the lower guide rail.
The stepping motor is fixed on the triangular bottom plate through the first support, the second support and the positioning plate.
Spiral grooves are formed in the surface of the worm wheel, and the end portion of the first rocker arm is inserted into the grooves through the locating pins.
The split sliding block penetrates through the triangular bottom plate and then is connected with the stitch triangle.
The electromagnet is arranged on the triangular bottom plate through a bracket.
The second rocker arm is L-shaped, the middle part is arranged on the rocker arm support through a pin shaft, one end of the second rocker arm is contacted with the ejector rod of the electromagnet, and the other end of the second rocker arm is contacted with the reset seat.
The reset seat is V-shaped, the middle is arranged on the guide sleeve support seat through the hinge shaft, one end of the reset seat is contacted with the second rocker arm, and the other end of the reset seat is connected with the linkage block.
The beneficial effects of the invention are as follows:
1) The machine head is limited and guided respectively from the up-down direction and the front-back direction by utilizing the matching of the upper guide rail, the lower guide rail and the adjustable limiting bearing in the shape of the Chinese character 'pin', and the positioning bearing is independently arranged for bearing the weight of the machine head;
2) The electromagnet is used as power, and the second rocker arm, the reset seat, the linkage block and the connecting rod drive the needle selection cam, the large cam and the small cam to be linked, so that the structure is simple, the adjustment is convenient, and the maintenance is simple;
3) The stepping motor is used as power, the spiral groove of the volute is used for driving the first rocker arm to act, so that the sliding block pulls the stitch cam to adjust, the structure is very compact, the adjustment is convenient, the maintenance is simple, and the automatic controllable adjustment synchronous with knitting can be realized.
Drawings
Fig. 1 is a schematic diagram of the front view structure of the present invention.
Fig. 2 is a schematic rear view of the structure of the present invention.
Fig. 3 is a schematic view of the structure of the running gear.
Fig. 4 and 5 are schematic structural views of the stitch cam adjusting and controlling mechanism.
Fig. 6 is a schematic view of the structure of the worm wheel.
Fig. 7, 8 and 9 are schematic structural views of the cam linkage mechanism.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the following examples.
As shown in figures 1 and 2, the nose of the intelligent control jacquard glove knitting machine comprises a shell 6-3, a triangle bottom plate 9-10, a density triangle 11, a knitting needle guiding large triangle 12, a lifting triangle 13, a lifting triangle 14, a P triangle half height 15, a fork needle guiding triangle 16, a needle clearing triangle 17, a herringbone triangle 18, a right central triangle 19, a left central triangle 20, a needle plate knife triangle 21, a stitch triangle 9-7, a knitting needle guiding small triangle 22, a needle pressing triangle 23, a large triangle 10-16, a needle selecting triangle 10-15, a P triangle full height 24, a small triangle 10-17, a stitch guiding triangle 25, a stitch resetting triangle 26, a needle selecting triangle 27, a stitch lifting triangle 28, a stitch guiding triangle 29, a needle pressing triangle control mechanism 1, a needle selector 2, a needle clearing triangle control mechanism 3, a P triangle control mechanism 4, a density triangle control mechanism 5, a lifting triangle control mechanism 7, a lifting triangle control mechanism 8, a stitch triangle 9, a needle selecting triangle linkage mechanism 10 and a driving mechanism 6 for reciprocating motion of the whole nose.
The invention is improved by a stitch cam regulating mechanism 9, a needle selection cam linkage mechanism 10 and a travelling mechanism 6 for driving the whole machine head to reciprocate.
As shown in fig. 3, the running mechanism comprises a delta-shaped upper guide rail 6-1, a lower guide rail 6-5 and a plurality of bearings arranged on a shell 6-3, wherein the lower part of the shell is provided with positioning bearings (for movement stability, generally at least two positioning bearings 6-4, one on the left side and the right side of the shell respectively) which are matched with the lower guide rail and used for bearing the weight of the machine head, and the upper part of the shell is provided with adjustable limit bearings (for movement stability, the left side and the right side of the shell are respectively provided with adjustable limit bearings) which are matched with the upper guide rail and the lower guide rail and used for guiding.
The upper guide rail and the lower guide rail are horizontally arranged, the protruding portion of the upper guide rail extends downwards in a hanging mode, and the protruding portion of the lower guide rail extends upwards in a hanging mode.
First to third adjustable limit bearings are arranged on the upper portion of the shell, the first adjustable limit bearing 6-2-1 abuts against the end face of the front end of the upper guide rail, the second adjustable limit bearing 6-2-2 abuts against the bottom face of the front end of the lower guide rail, and the third adjustable limit bearing 6-2-3 abuts against the rear side face of the protruding portion.
Fourth to sixth adjustable limit bearings are arranged at the lower part of the shell, the fourth adjustable limit bearing 6-2-4 is abutted against the end face of the front end of the lower guide rail, the fifth adjustable limit bearing 6-2-5 is abutted against the bottom face of the lower guide rail, and the sixth adjustable limit bearing 6-2-6 is abutted against the rear side face of the protruding portion. The positioning bearing is abutted against the top surface of the front end of the lower guide rail.
The working principle of the machine head travelling mechanism is as follows: the adjustable limit bearings are matched with the upper guide rail and the lower guide rail, so that the machine head can be guided and limited, the machine head is prevented from jumping, and the positioning bearings can bear most of the weight of the machine head, so that abrasion is reduced.
As shown in fig. 4, 5 and 6, the improved stitch cam regulating mechanism of the invention aims at the defects of the prior stitch cam and comprises a stepping motor 9-1, a worm wheel 9-5 driven by the stepping motor, a first rocker arm 9-3 connected with the worm wheel, a split sliding block 9-8 connected with the first rocker arm and a stitch cam 9-7 connected with the sliding block, wherein a return spring 9-6 is arranged on a cam base plate 9-10, and the return spring is connected with the split sliding block.
Preferably, the stepper motor is fixed on the triangle base plate through the first support 9-2-1, the second support 9-2-2 and the positioning plate 9-9. The stepper motor 9-1 is provided with a magnetic inductor 9-11 and an induction aluminum block 9-12, so that the rotation angle of the stepper motor 9-1 (in the prior art) can be detected, and the triangular stroke of a degree of accuracy can be controlled.
Preferably, a spiral groove 9-5-1 and a mounting hole 9-5-2 matched with an output shaft of the stepping motor 9-1 are formed in the surface of the worm gear, the end portion of the first rocker arm 9-3 is inserted into the groove through a locating pin 9-4, and a bearing is mounted at the insertion end of the locating pin 9-4.
Preferably, the split sliding block 9-8 passes through the triangle bottom plate 9-10 and then is connected with the stitch triangle 9-7. Obviously, the triangle bottom plate 9-10 is provided with a slot which allows the split sliding block 9-8 to slide.
The working principle of the regulating mechanism of the stitch cam is as follows: when the motor drives the worm wheel to rotate, the worm wheel cannot radially displace, so that the locating pin of the first rocker arm can only move along the groove, the first rocker arm swings to pull the split sliding block to drive the stitch cam to slide, the control center of the glove knitting machine is used for setting the position of the stitch cam for controlling the rotation angle of the worm wheel, and the spring pulls the split sliding block to ensure that the bearing slides against the same side of the groove of the worm wheel.
As shown in fig. 7, 8 and 9, aiming at the defects of the existing needle selection cam, the cam linkage mechanism of the improved needle selection cam comprises an electromagnet 10-1, a second rocker arm 10-4 driven by the electromagnet, a reset seat 10-7 driven by the second rocker arm, a linkage block 10-9 connected with the reset seat through a pin shaft, a connecting rod 10-14 connected with the linkage block through a pin shaft 10-10 and a cam positioning plate 10-12 connected with the connecting rod, wherein the needle selection cam 10-15, a large cam 10-16 and a small cam 10-17 are arranged on the bottom surface of the cam positioning plate.
The electromagnet is arranged on the triangle bottom plate through a bracket 10-2. The second rocker arm is L-shaped, the middle part is arranged on the rocker arm support 10-3 through a pin shaft, one end of the second rocker arm is contacted with the ejector rod of the electromagnet, and the other end of the second rocker arm is contacted with the reset seat.
The reset seat is V-shaped, the middle is arranged on the guide sleeve support 10-11 through the hinge shaft 10-6, the pin shaft is provided with the torsion spring 10-5 for resetting, one end of the reset seat is contacted with the second rocker arm, and the other end of the reset seat is connected with the linkage block.
The thrust plate 10-8 is fixed on the linkage block 10-9 through the screw 10-18, the thrust plate 10-8 is shielded on the side surface of the linkage block, and the pin shaft at the joint of the linkage block 10-9 and the reset seat 10-7 and the pin shaft 10-10 at the joint of the linkage block 10-9 and the connecting rod 10-14 are prevented from falling off.
The guide sleeve support 10-11 is provided with a guide sleeve 10-19 of the connecting rod 10-14, so that the connecting rod 10-14 pulls the triangular positioning plate 10-12 to vertically lift. In addition, the cam base plate 10-13 is provided with openings for the movement of the needle selection cam 10-15, the large cam 10-16 and the small cam 10-17, and the openings also play a role in guiding the needle selection cam 10-15, the large cam 10-16 and the small cam 10-17.
The working principle of the triangular linkage mechanism is as follows: the ejector rod of the electromagnet stretches out, the second rocker arm swings to drive the reset seat to rotate, and then the linkage block pulls the needle selection cam 10-15, the large cam 10-16 and the small cam 10-17 to be linked together through the connecting rod.
The foregoing list is only illustrative of specific embodiments of the invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.