CN201062299Y - Base initiating apparatus for flat knitting machine - Google Patents

Abstract

The utility model relates to a lifting device of a flat knitting machine, which comprises a lifting plate, a driving device, and a casting-on needle. The casting-on needle is installed on the lifting plate and driven by the driving device to move. The utility model is characterized in that the casting-on needle is composed of a bearded needle and a yarn retracting rod, the yarn retracting rod is slender laminated, a transparent groove is arranged in the longitudinal direction of the bearded needle and mutually matched with the yarn retracting rod, the yarn retracting rod is arranged in the longitudinal groove of the bearded needle and can be slid up and down in the groove, a fitting part fixing the bearded needle on the lifting plate is arranged at the lower end of the bearded needle, and a fitting part fixing the yarn retracting rod with a yarn retracting elevating device is arranged at the lower end of the yarn retracting rod; Notches with the identical direction are arranged at the front ends of the bearded needle and the yarn retracting rod, and the notches are composed of at least two surfaces; wherein, the surface close to the notch position at the top end of the bearded needle is slope-shaped; the surface close to the notch position at the top end of the yarn retracting rod is hook-shaped. The structure of the utility model is simple, the installation is convenient, the yarn waste is reduced, and the working efficiency is enhanced.

Description

The bottom rising device of flat machine

Technical field

The utility model belongs to the flat machine technical field, particularly relates to the bottom rising device of flat machine.

Background technology

Flat machine can be finished the braiding of a complete garment piece, next complete garment piece of ordinary circumstance mainly by refuse yarn, take out stitches, rise the end, idle running, rib-loop, bodice etc. and partly form; Because of the tractive output procedure of knitted fabric after circle is moved back in lopping, be that the knitted fabric that will be shaped pulls out from knitting point, send after giving the fabric certain force of strain, tractive is very big to knitting cycle and product quality influence, should possess following basic demand:, should require also continuously operation of tractive motion because knitting cycle carries out continuously; The tractive tension force that acts on each coil will stablize, evenly, unanimity; And tractive amount and lopping technology in tractive tension force, unit interval need be carried out synchronously, because of certain distance is arranged between needle-bar mouth and the pulling device in the flat machine, that is to say when garment piece weaves and just to be pulled the device clamping at once, this moment is if directly carry out the normal braiding of garment piece, then garment piece (i.e. the garment piece of the not lived) out-of-flatness down of braiding just owing to lack uniform pulling force by the roller clamping, so influenced the integral weaving effect of garment piece; In addition, when garment pieces such as machine need continuous weaving V neck or crew neck, need weave refuse yarn again because the initial fabric width of garment piece is different and just can carry out the braiding of next garment piece, hence one can see that, must realize the integral weaving of garment piece before taking up one's knitting by means of refuse yarn, so not only reduce whole work efficiency, but also wasted the use of yarn greatly.

In order to address this problem, people realize that with a kind of needle for setting up fabrics and corresponding bottom rising device the closely tractive of fabric has reached end effect, a kind of needle for setting up fabrics is disclosed as Chinese patent CN1023906, it is made up of push jack and shank, push jack places in the groove of shank, and can slide up and down in this groove, respectively has a hook-shaped position on push jack and the shank, push jack hooks yarn during use, utilizes the slide down command of execution yarn of shank to break away from again.The head of this push jack and shank all has certain radian, and the hook of push jack also has radian, the difficult processing of this needle for setting up fabrics, to the required precision height, because the thickness of push jack is very little, and the hook of its head is also very little in the contact-making surface of yarn, the situation that yarn breaks off relations takes place easily simultaneously.

Summary of the invention

The utility model provides a kind of bottom rising device of more convenient practicality just in order to address this problem.

For this reason, the utility model has adopted following technical scheme: the bottom rising device of flat machine, base plate, drive unit and needle for setting up fabrics have been comprised, needle for setting up fabrics has been installed on the base plate, drive motion by drive unit, it is characterized in that: needle for setting up fabrics is made up of crochet hook and back yarn bar, the back yarn bar is elongated sheet, crochet hook vertically has penetrating groove at it, match with the back yarn bar, the back yarn bar places the cannelure of crochet hook and can slide up and down at this groove, and the lower end of back yarn bar has the junction surface that itself and back yarn lowering or hoisting gear are fixed; Crochet hook has the identical breach of direction with the back yarn bar at its front end, and described breach is made up of two faces at least; Wherein the face near crochet hook top indentation, there is the acclivity shape; And the face of close back yarn masthead end indentation, there is hook-shaped; When needle for setting up fabrics was in extension yarn state, the back yarn rod notch was hidden in the crochet hook head near the inclined-plane on top; When needle for setting up fabrics was in the back yarn state, the back yarn rod notch exposed from the breach of crochet hook head near the inclined-plane on top.

Further, have the back yarn lowering or hoisting gear on the base plate, described back yarn lowering or hoisting gear is tabular, and the back yarn bar is fixed on the back yarn lowering or hoisting gear by the junction surface of its lower end; The back yarn lowering or hoisting gear has placed in the base plate groove, cooperates by cotter way with a base plate, and is moved up and down by the motor drive.

Play base plate and the integral installation of back yarn lowering or hoisting gear on the slide bar of straight-bar machines two sidecar walls, drive and move up and down by motor, sprocket wheel.

The utility model is when work, initial state has been that base plate and back yarn lowering or hoisting gear are in original position, promptly lower position, the back yarn lowering or hoisting gear is in higher position with respect to playing base plate, back yarn this moment bar also is in higher position with respect to crochet hook, and the back yarn rod notch is hidden in the crochet hook head invisible near the acclivity face on top; After starting working, play base plate, needle for setting up fabrics rises overally, and treats that crochet hook tangles whole again decline behind the yarn, promptly hangs the yarn process; After arriving the precalculated position, play base plate and stop, the back yarn lowering or hoisting gear descends with respect to playing base plate, thereby the back yarn bar also descends with respect to crochet hook, when the slope on the close top of back yarn rod notch exposed from the breach of crochet hook head, this slope was about to yarn and deviates from i.e. back yarn process from crochet hook; Play whole continuation of base plate then and descend, and the back yarn lowering or hoisting gear rises with respect to playing base plate, gets back to original position, waits for the next work period.

The utility model has reduced the yarn waste at the initial period of braiding, has improved utilization rate and operating efficiency; The shape facility of needle for setting up fabrics is many simultaneously is made of straight line, and simple in structure, easy to process, cost is also lower, and has very high stability, and its transmission device global design structure is comparatively simple, easy for installation, and serviceability is more stable.

Description of drawings

Fig. 1 has been the end each parts rigging position schematic diagram of needle plate part

Fig. 1-1 is the local enlarged diagram of Fig. 1

Fig. 2 has been that base plate is hung yarn each component movement position view of when work

Fig. 2-1 for Fig. 2 diagrammatic sketch to looking enlarged diagram (being that needle for setting up fabrics crochet hook and back yarn bar position concerns schematic diagram when hanging yarn)

Fig. 3 be base plate when taking off yarn each component locations concern schematic diagram

Fig. 3-1 for Fig. 3 diagrammatic sketch to looking enlarged diagram (being that needle for setting up fabrics crochet hook and back yarn bar position concerns schematic diagram when taking off yarn)

Fig. 4 is a back yarn bar profile schematic diagram

Fig. 5 is crochet hook profile and cutaway view thereof

Crochet hook and back yarn bar rigging position schematic diagram when Fig. 6 takes off yarn for needle for setting up fabrics

Crochet hook and back yarn bar rigging position schematic diagram when Fig. 7 hangs yarn for needle for setting up fabrics

Back yarn bar movement travel schematic diagram when Fig. 8 hangs yarn and back yarn for needle for setting up fabrics

Its running part had reached each assembly movement relation of bottom parts, position view when Fig. 9 had been the base plate rising

Its running part had reached each module position of bottom parts and has concerned schematic diagram when Figure 10 had been the base plate initial position

Figure 11 plays movement relation schematic diagram between bottom parts and the roller when hanging yarn for needle for setting up fabrics

Figure 12 has been bottom parts tractive movement relation schematic diagram when descending and between the roller

Playing base plate and needle for setting up fabrics part in institute's accompanying drawing mainly is made up of the following:

1, fork motor 2, motor seat 3, swing link cam 4, fork

5, connecting rod 7, connecting plate 8, control panel 9, an end needle plate

10, crochet hook 11, back yarn bar 15, axis

Playing end needle plate running part mainly is made up of the following:

30, torque-motor 31, power transmission shaft 32, pull bar 35, curved bar

36, slide bar 41, linear axes bearing sleeve 50, belt wheel 57, be with 58 synchronously, portable plate 60, play backplanes support

The specific embodiment

As shown in the figure, the straight-bar machines bottom rising device is by playing base plate, needle for setting up fabrics and running part are formed, and play bottom parts mainly by fork motor 1, swing link cam 3, fork 4, connecting rod 5, connecting plate 7, control panel 8, play end needle plate 9, crochet hook 10, back yarn bar 11 compositions such as grade, play that fork motor 1 is installed on the fork motor seat 2 in the bottom plate apparatus, Figure 2 shows that the bottom plate apparatus front, 2 of motor seats have been fixedly mounted on end needle plate 9 back sides, fork motor 1 one end axial regions are equipped with swing link cam 3, cam 3 is slidingly connected by bearing and fork 4, when 1 running of fork motor, fork 4 is an axe movement with axis 15, same, fork 4 one end slotted hole E are built-in with a bearing and fixedly connected with connecting rod 5, also have an oval groove F with it on the Dui Ying needle plate 9 so that bearing moves in its scope, thereby promote connecting rod 5 move left and right in the needle plate groove A that plays end needle plate 9.Be arranged with four groove C at a center, end needle plate 9 upper edge to place connecting plate 7, control panel 8 is fixedlyed connected with connecting plate 7 pins, connecting plate 7 is driven by connecting rod 5 and slides up and down in needle plate groove C, thereby drive control panel 8 motions, wherein control panel 8 places on the needle plate groove B, it engages with the G place of back yarn bar 11 with the horizontal groove L that the one side that needle plate groove B contacts is provided with, thereby drives 11 longitudinal sliding motions in the crochet hook groove of back yarn bar.As shown in Figure 1, when motor 1 operation, when fork 4 turns to certain position along clockwise direction and stop motion, this moment, connecting rod 5 slided to the right, make bearing be in long slot bore extreme higher position on the connecting rod 5, thereby affect connecting plate 7, control panel 8 and back yarn bar 11 to rise simultaneously, back yarn this moment bar 11 concerns shown in Fig. 2-1 with crochet hook 10 positions, has been end needle plate and has hung the yarn state.By Fig. 2, Fig. 3 as can be seen, fork 4 has been that the bottom dog pin is hung the yarn state when being in position shown in Figure 2, then is the back yarn state when being in Fig. 3 position, and its operation principle is identical with the extension yarn, now few affixation is stated, and different is when hanging yarn and taking off yarn, and fork 4 residing positions are just opposite.

Described needle for setting up fabrics mainly is made up of crochet hook 10 and back yarn bar 11, crochet hook 10 has been fixed in the needle tray 9a that opens of end needle plate 9, the another side of crochet hook 10 is provided with two projection 10a, 10b place and is convenient to steel wire and passes, and then plays better fixedly position-limiting action to playing a bottom dog pin 10.Back yarn bar 11 then places in the hook groove 105 of crochet hook 10, and back yarn bar 11 afterbodys one protruding end 11a engages with vertical groove 8a on the control panel 8, and move up and down in the hook groove that makes back yarn bar 11 at crochet hook 10 under the drive of control panel 8 (shown in Fig. 4,6).

As shown in Figure 5, crochet hook head inclined-plane, 103 place and b size design have been convenient to end pin smoothly by the gap between needle-bar tooth mouth, and downward hook-shaped 102 and concave surface 101 can grip preferably and be afford to live in the line yarn that the bottom dog pin is hung.Back yarn bar acclivity face 112 shown in Figure 4 is opposite with hook-shaped 102 direction that plays the bottom dog pin, this acclivity face 112 can be taken off the line yarn, effect is identical yarn can be held the jail for concave surface 110 and crochet hook concave surface 101, therefore, have only when rising and just can well realize the extension yarn of garment piece and take off the yarn function when bottom dog pin and back yarn bar cooperatively interact work.

Rise the base plate transmission device mainly by torque-motor 30, belt wheel 50, pull bar 32, curved bar 35, slide bar 36, be with 57 synchronously, portable plate 58, linear axes bearing sleeve 41, play backplanes support 60 etc. and form; Fig. 9, Figure 10 are machine cutaway view (right view), as shown in the figure, torque-motor 30 is installed on the machine one sidecar wall, motor 30 1 axle heads are equipped with a drive sprocket (not shown) near right Che Biyi side, be installed on the power transmission shaft 31 near drive sprocket by movable sprocket, wherein power transmission shaft 31 is installed in rotation on left and right sides Che Bishang, and power transmission shaft 31 two ends all are equipped with belt wheel 50, and it is driven by the torque-motor 30 and the sprocket wheel that are installed in the Che Bi right side.Pressing plate 40 is fixed on is with 57 synchronously near slide bar 36 1 sides, its respectively be with 57 synchronously, linear axes bearing sleeve 41 fixedly connected (Fig. 9, pressing plate shown in Figure 10 40 and be with synchronously 57 be its side view), its objective is that can drive linear axes bearing sleeve 41 when torque-motor 30 drives are with 57 to move up and down synchronously is synchronized with the movement, linear axes bearing sleeve 41 cooperates installation with slide bar 36, pressing plate 40, bearing block 38 is fixedly mounted on the two sides of linear axes bearing sleeve 41 respectively, should and be installed in that the bearing at bearing block 38 back sides and pull bar 32 and curved bar 35 are vertically opposite, its effect is that it applies certain pressure to pull bar 32 and drives portable plate 58 and move inwards when playing a bottom parts and drop to the least significant end position, helps the whereabouts of cloth sheet; Wherein pull bar 32 1 ends are fixed on Che Bishang, the other end is connected with curved bar 35, the slotted hole that portable plate 58 inboard lug projections have a (not shown) to pass curved bar 35 tops moves in its scope, just portable plate 58, pull bar 32, curved bar 35 etc. are synchronized with the movement under external force, also movement therewith of portable plate 58 when pull bar 32, curved bar 35 move under the situation that external force drives and external force is cancelled up or down.

Playing bottom parts is connected by playing backplanes support 60 with its transmission device.When machine run begins head row when starting braiding, play a bottom parts and begin to rise, roller 62 outwards opens (direction of arrow is that roller is opened direction among Figure 11) simultaneously, by the V-type gap between two driving levers yarn is tangled smoothly so that play a bottom parts; Playing bottom plate apparatus with its transmission device operation principle is: torque-motor 30 drives and is connected sprocket wheel (not shown) and belt wheel 50 motions, rise by having reached end needle plate part with 57 pressing plates that driven 40, linear axes bearing sleeve 41, bearing block 38, a backplanes support 60 synchronously thereupon, this moment, pull bar 32 was because of beginning under the contractility effect that loses institute's applied pressure such as bearing block 38 and stage clip to the motion of S direction, and portable plate 58 is outwards opened (to the L direction) in order to playing a base plate rising under curved bar 35 drives; Can pass the signal along to bottom parts after roller 62 is opened, stop when beginning rising behind the signal that a bottom parts system that receives transmits and arriving certain position, this moment, needle for setting up fabrics was partly started working, and promptly crochet hook 10 begins to hang yarn; Playing base plate branch after a bottom dog pin 10 is suspended to yarn slowly leaves behind garment piece in company with machine braiding speed, and (garment piece is by roller 62 clampings) begin to take off yarn work by the bottom parts that rises of system's control when a bottom parts drops to certain position, play bottom parts and then continue to drop to original initial position, the bearing that be fixed on the bearing block 38 this moment applies certain pressure to pull bar, portable plate 58 after being subjected to applied force such as pull bar 32 with curved bar 35 inwards (L direction) motion one segment distance stop, machine wove the garment piece that gets off and just can fall (shown in Figure 10) along portable plate 58 this moment.

Hence one can see that, when needle for setting up fabrics is hung yarn, playing bottom parts is risen by its actuator drives, roller 62 and portable plate 58 all need be opened certain space and be convenient to the end smooth rising of needle plate part and can hang yarn this moment, and begin to descend after bottom parts is suspended to yarn when rising, when dropping to a bottom dog pin fully by roller, roller 62 is beginning closed (the roller closing direction as shown in figure 12) under system's control, after taking off yarn fully, base plate will continue to drop to the origin-location when rising, this moment, portable plate moved to the R direction, and garment piece just can fall (shown in Figure 12) smoothly along portable plate.

Claims (3)

1. the bottom rising device of flat machine, base plate, drive unit and needle for setting up fabrics have been comprised, needle for setting up fabrics has been installed on the base plate, drive motion by drive unit, it is characterized in that: needle for setting up fabrics is made up of crochet hook and back yarn bar, and the back yarn bar is elongated sheet, crochet hook vertically has penetrating groove at it, match with the back yarn bar, the back yarn bar places the cannelure of crochet hook and can slide up and down at this groove, and the lower end of back yarn bar has the junction surface that itself and back yarn lowering or hoisting gear are fixed; Crochet hook has the identical breach of direction with the back yarn bar at its front end, and described breach is made up of two faces at least; Wherein the face near crochet hook top indentation, there is the acclivity shape; And the face of close back yarn masthead end indentation, there is hook-shaped; When needle for setting up fabrics was in extension yarn state, the back yarn rod notch was hidden in the crochet hook head near the slope on top; When needle for setting up fabrics was in the back yarn state, the back yarn rod notch exposed from the breach of crochet hook head near the slope on top.

2. the bottom rising device of flat machine as claimed in claim 1 is characterized in that: rise on the base plate and have the back yarn lowering or hoisting gear, described back yarn lowering or hoisting gear is tabular, and the back yarn bar is fixed on the back yarn lowering or hoisting gear by the junction surface of its lower end; The back yarn lowering or hoisting gear has placed in the base plate groove, cooperates by cotter way with a base plate, and is moved up and down by the motor drive.

3. the bottom rising device of flat machine as claimed in claim 2 is characterized in that: play base plate and the integral installation of back yarn lowering or hoisting gear on the slide bar of flat machine both sides, driven and moved up and down by motor, sprocket wheel.

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