CN201362782Y

CN201362782Y - Needle retracting mechanism for flat knitting machine

Info

Publication number: CN201362782Y
Application number: CNU200920036692XU
Authority: CN
Inventors: 陈根华
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-27
Filing date: 2009-02-27
Publication date: 2009-12-16
Anticipated expiration: 2019-02-27

Abstract

A needle retracting mechanism for a flat knitting machine belongs to the technical field of knitting machinery. The needle retracting mechanism comprises a first guide rail and a second guide rail, a first adjusting block and a second adjusting block, a third adjusting block and a fourth adjusting block matched on the second guide rail in a sliding manner, a shuttle box matched on the first and the second guide rails in a sliding manner, and an adjusting block actuating device arranged on a machine frame. The needle retracting mechanism is characterized in that the adjusting block actuating device comprises a rope pulley mechanism and a driving mechanism, wherein the rope pulley mechanism is arranged on the first and the second guide rails and coupled with the first, the second, the third and the fourth adjusting blocks, while the driving mechanism is arranged on the machine frame and coupled with an arbitrary one of the first, the second, the third and the fourth adjusting blocks correspondingly to the lateral part at one end of either of the first and the second guide rails. The needle retracting mechanism has the advantages that the space between the first and the second guide rails can be reduced so as to further reduce the volume of the flat knitting machine and ensure the centering effect of the shuttle box.

Description

The needle allocation mechanism of controlled flat knitting machine

Technical field

The utility model belongs to the weaving machinery technical field, is specifically related to a kind of needle allocation mechanism of controlled flat knitting machine.

Background technology

China utility model patent Granted publication CN2576740Y discloses a kind of folding and unfolding needle device of controlled flat knitting machine, the core of this patented technology scheme is: a rhizoid thick stick is installed on frame, be designed to the screw thread separately at the two ends of leading screw opposite each other, configuration adjustment piece respectively on the screw thread at the two ends of leading screw, regulating block passes through internal thread of himself and the threads engaged on the leading screw, and shuttle box (also claiming yarn) is arranged between a pair of regulating block.Technique scheme can be set the moving range of shuttle box easily, promptly can only move between a pair of regulating block, thereby can realize narrowing or widening easily.About the reason of folding and unfolding pin, be that industry is known on the one hand, in the background technology hurdle of this patent, done very detailed explanation on the other hand, so the applicant is given unnecessary details no longer.

Though above-mentioned patented technology scheme has the alleged advantage of its Instructions Page 3 the 3rd to the 6th row, but have following shortcoming: because leading screw is provided in a side of between the pair of guide rails (patent claims guide rod), parallel mutually with the length direction of pair of guide rails, therefore the spacing between the guide rail is bigger, thereby be unfavorable for dwindling the overall volume of controlled flat knitting machine, especially the spacing between the pair of guide rails is bigger, then causes difficulty to the centering of shuttle box more, influences the yarn feeding effect.

Summary of the invention

Task of the present utility model is to provide a kind of and helps dwindling the spacing between the pair of guide rails and use reduced volume and help to ensure shuttle box centering and use the needle allocation mechanism of the controlled flat knitting machine that embodies the yarn feeding effect.

Task of the present utility model is finished like this, a kind of needle allocation mechanism of controlled flat knitting machine, it comprises a pair of first on the frame that be located at parallelly, second guide rail, slide and fit over a pair of first on first guide rail, second regulating block, slide and fit over a pair of the 3rd on second guide rail, the 4th regulating block, slide and fit over first, shuttle box on second guide rail and one is located at being used on the frame and draws described first, second, the 3rd, the regulating block actuating device of the 4th regulating block motion, be characterised in that: described regulating block actuating device comprises a rope sheave mechanism and a driving mechanism, rope sheave mechanism is provided in first, on second guide rail and with described first, second, the 3rd, the 4th regulating block connects, and driving mechanism is located on the frame, with described first, second, the 3rd, any one regulating block in the 4th regulating block connects and corresponding to described first, the sidepiece of one end of any guide rail in second guide rail.

In a specific embodiment of the present utility model, described rope sheave mechanism comprises first, second top sheave, first, second lower sheave, first, the second transition pulley, pull rope and first, second pulley base, first pulley base is fixed on an end end of described first guide rail, second pulley base is fixed on an end end of described second guide rail and parallels with first pulley base, first top sheave is located on first pulley base rotationally, second top sheave is located at rotationally on second pulley base and is corresponding with first top sheave, first lower sheave is located on first pulley base rotationally, second lower sheave is located at rotationally on second pulley base and is corresponding with first lower sheave, the first transition pulley is located at the sidepiece of the other end of first guide rail, and the second transition pulley is located at the sidepiece of the other end of second guide rail, one end of pull rope and an end of described first regulating block are connected, the middle part successively with the first transition pulley, described second regulating block, a pair of first, second top sheave, the 3rd regulating block, the second transition pulley, described the 4th regulating block and a pair of first, second lower sheave connects, and the other end of the other end and first regulating block is connected.

In another specific embodiment of the present utility model, described the first, the 3rd regulating block corresponds to each other.

Go back in the specific embodiment of the present utility model, described the second, the 4th regulating block corresponds to each other.

In another specific embodiment of the present utility model, the global shape of the profile of described first, second pulley base is L-shaped, and the position of described a pair of first, second top sheave is than described a pair of first, second lower sheave height.

In another specific embodiment of the present utility model, described driving mechanism comprises motor, decelerator, a pair of screw bolt seat, counter, pair of guide rods, one adjusts sliding seat, one screw rod, an a pair of signal feedback device and a connecting rod, a pair of screw bolt seat is fixed on the two ends of location-plate, and the middle part of location-plate and described frame are fixed and corresponding to the sidepiece of an end of described a pair of first guide rail, motor and decelerator are matched, one of them screw bolt seat in decelerator and a pair of screw bolt seat is fixed and is fixed with described location-plate, counter is fixed therein on the screw bolt seat, pair of guide rods each other with parastate be fixed on a pair of screw bolt seat, adjusting the two ends and the pair of guide rods cunning of sliding seat joins, the middle part is provided on the screw rod, screw rod is between pair of guide rods, connect on an end hub setting one of them screw bolt seat in a pair of screw bolt seat of screw rod and with the decelerator transmission, and the other end hub setting of screw rod is on another screw bolt seat, and be stuck in screw bolt seat and be fixed with a signal lever that is used for providing signal to described counter, a pair of signal feedback device is located at the two ends of any guide rod in the pair of guide rods and is positioned at the both sides of an end of described adjustment sliding seat, one end of connecting rod and described adjustment sliding seat are connected, the other end disposes one and connects firmly head, this connects firmly head and connects firmly with described the 3rd regulating block, wherein, described motor, a pair of signal feedback device sum counter is electrically connected by the electric control box of circuit and controlled flat knitting machine.

More of the present utility model and in specific embodiment, described motor is a clockwise and anticlockwise motor.

In of the present utility model and then specific embodiment, described a pair of signal feedback device is travel switch, microswitch or position near in the switch any one.

Of the present utility model again more and in specific embodiment, the below at the middle part of described adjustment sliding seat is provided with nut, this nut matches with described screw rod.

The advantage of technical scheme provided by the utility model: move to outside owing to will be used to order about the regulating block actuating device of first, second, third, fourth regulating block motion, therefore can dwindle the spaced apart between first, second guide rail and use the effect placed in the middle that the volume that makes controlled flat knitting machine is dwindled and can ensure shuttle box in a pair of first, second guide rail.

Description of drawings

Accompanying drawing is a specific embodiment structure chart of the present utility model.

The specific embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in conjunction with the accompanying drawings in the mode of embodiment below, but to the description of embodiment all is not restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

Please provide frame 1 referring to accompanying drawing, on frame 1 and the needle-bar of illustrating in corresponding to figure 8 above be installed with a pair of shape of cross section and be I-shaped first,

second guide rail

2,3, according to general knowledge, this must be parallel to first, second guide rail 2,3.The set-up mode identical with prior art slides and is equipped with first, second regulating

block

4a, 4b and a pair of shuttle box 6 on first guide rail 2, and a pair of shuttle box 6 is between first, second regulating

block

4a, 4b; The same set-up mode slide arrangement identical with prior art has the 3rd, the 4th regulating block 5a, 5b on second guide rail 3, and a pair of shuttle box 6 between the 3rd, the 4th regulating block 5a, 5b, is installed with shuttle 61 (also claiming yarn feeding to chew) equally on each shuttle box 6.

Technical essential as the technical solution of the utility model, by means of first,

second guide rail

2,3 and frame 1 and be provided with a regulating block actuating device 7, preferably but not the structure of the regulating block actuating device 7 that definitely is limited to is as follows: comprise rope sheave mechanism 71 and driving mechanism 72, as a pair of pulley base that constitutes rope sheave mechanism 71 is first, second pulley base 716,717 are separately fixed at first, second guide rail 2, promptly present right-hand member end, an end end of 3 by location status shown in the drawings, first, second pulley base 716,717 vertical section shape is L-shaped or claim 7 fonts, on first,

lower sheave

711a, 712a (passes through pulley spindle) rotationally and is located on first pulley base 716, wherein the position of the first top sheave 711a is higher than the first lower sheave 712a, on second, lower sheave 711b, 712b (passes through pulley spindle) rotationally and is located on second pulley base 717, wherein the position of the second top sheave 711b is than the second lower sheave 712b height, and first, the second top sheave 711a, 711b corresponds to each other, and then, first, the second lower sheave 712a, 712b corresponds to each other, that is to say, first, the second top sheave 711a, 711b and first, the second lower sheave 712a, 712b forms the gradient relation, so that pull rope 715 is sheathed, the unlikely interference phenomenon that causes.The sidepiece that the first transition pulley 713 is located at the other end of first guide rail 2 is the sidepiece of present left end shown in the drawings, and in like manner to be located at the sidepiece of the other end of second guide rail 3 be the sidepiece of the left end of shown position to the second transition pulley 714.If first, second transition pulley 713,714 is changed the sidepiece of the right-hand member that is set to first,

second guide rail

2,3, and adaptably aforesaid first, second top sheave 711a, 711b and first, second lower sheave 712a, 712b are transposed to the right-hand member of first,

second guide rail

2,3, simultaneously first, second pulley base 716,717 is moved to the right-hand member of first,

second guide rail

2,3, should be considered as so and technical scheme equivalence disclosed in the utility model.One end of the pull rope 715 shown in the figure is that the initiating terminal of pull rope 715 is fixedly connected with an end (illustrated left end) of the length direction of first screw 7151 and the first regulating block 4a, the middle part of pull rope 715 is earlier around being placed in the first transition pulley 713, link by second screw 7152 and the second regulating block 4b again, and then around and in (cover as for) first, the second top sheave 711a, link with the 3rd screw 7153 and the 3rd regulating block 5a behind the 711b, then be placed on the second transition pulley 714, link with the 4th screw 7154 and the 4th regulating block 5b again, again so be placed on second, the first lower sheave 712b, the other end (illustrated right-hand member) with the length direction of the 5th screw 7155 and the first regulating block 4a behind the 712a is fixedly connected, and promptly the end of pull rope 715 and the first regulating block 4a are connected.So first, second, third, fourth regulating

block

4a, 4b, 5a, 5b are implemented to connect by pull rope 715, as long as by any one regulating block that driving mechanism 72 drives among first, second, third, fourth regulating

block

4a, 4b, 5a, the 5b, so just can make each regulating block one moving all moving.Because the first regulating block 4a that is located on first guide rail 2 corresponds to each other with the 3rd regulating block 5a that is located on second guide rail 3, because the second regulating block 4b that is located on second guide rail 2 corresponds to each other with the 4th regulating block 5b that is located on second guide rail 3, therefore can show uniformity effect close synchronously or that the phase mutual exclusion is opened again.

Connect with decelerator 722 transmissions as constituting motor 721 driving mechanism 7 and that have rotating kinetic energy, and it is fixing and fixing with the location-plate 7231 of screw bolt seat 723 to take one of them screw bolt seat 723 in motor 721 and a pair of screw bolt seat 723 (illustrated the right) by reductor 722.Shown in figure, a pair of screw bolt seat 723 is fixed with the two ends of location-plate 7231 respectively, and the middle part of location-plate 7231 is fixed with screw and frame 1 and corresponding to the sidepiece of an end of first guide rail 2.Counter 724 is fixed on the screw bolt seat 723 on the left side, the two ends of pair of guide rods 725 are fixed with corresponding screw bolt seat 723 respectively, the two ends cunning of adjusting sliding seat 726 fits on the pair of guide rods 725, the middle part cooperates with screw rod 727 by nut 7261, screw rod 727 between the pair of guide rods 725 and one end (right-hand member) be located at rotationally on the screw bolt seat 723 with aforesaid decelerator 722 transmissions and connect, the other end is located on another screw bolt seat 723 (diagram the right one) rotationally and is stuck in screw bolt seat 723 and is fixed with a signal lever 7271, and signal lever 7271 is corresponding with counter 724.A pair of signal feedback device 728 is fixed on wherein guide rod 725 in the pair of guide rods 725 and corresponding to the both sides of adjusting sliding seat 726, and this can be adjusted according to needing the position of signal feedback device 728 on guide rod 725.With to adjust sliding seat 726 fixing, the other end constitutes cantilever-shaped and is the hold-down screw and the second regulating block 4b fixed connection by connecting firmly 7291 with screw for one end of connecting rod 729.Aforesaid motor 721, a pair of signal feedback device 728 and counter 724 are electrically connected by the electric control box of circuit and controlled flat knitting machine, wherein, signal feedback device 728 both can adopt microswitch, also can adopt travel switch, can also adopt the position near switch or other equivalent switch, present embodiment is selected and is used travel switch.When the spacing between a pair of signal feedback device 728 is big more, the displacement amplitude of adjusting sliding seat 726 so is big more, first, second phase mutual exclusion of adjusting between piece 4a, the 4b is opened apart from big more, and the 3rd, the 4th the repelling each other distance of adjusting between piece 5a, the 5b is big more, and vice versa.In the present embodiment, although the applicant connects the drive unit 72 and the second regulating block 4b, but be not restricted, for example when driving mechanism 72 is set to the left end (shown position state) of frame 1, so just, can realize connecting with the first regulating block 4a, according to the reason of drawing inferences about other cases from one instance, driving mechanism 72 can connect with the 3rd regulating block 5a or with the 4th regulating block 5b fully.

Aforesaid shuttle box 6 is that the elasticity bolt on the card that is fixed by the head with controlled flat knitting machine enters groove 62 and drives, concrete work or title motion principle belong to known technology and have a detailed description (specification of asking for an interview this patent walks to the 6th page of the 3rd row for the 5th page the 5th) in aforesaid CN25767407, so the applicant no longer elaborates.

Still see also accompanying drawing and since the phase mutual exclusion of first, second regulating

block

4a, 4b open or close up be with the 3rd, the 4th regulating block 5a, 5b is identical and be synchronized with the movement, so the applicant only selects first, second regulating

block

4a, 4b and describes.When to limit distance between a pair of first, second regulating block 4a, the 4b for example increase each other apart from the time, motor 721 work of driving mechanism 72, drive screw rod 727 rotations by decelerator 722, drive connecting rod 729 by adjusting sliding seat 726, and then by the connecting rod 729 drives first adjustment piece 4a, first, second spacing of adjusting between piece 4a, the 4b is increased, and the mobile range of shuttle box 6 just increases; As long as otherwise changing motor 721 reverse rotations, screw rod 727 also reverses, and adjusts sliding seat 726 and oppositely moves, and connecting rod 729 diminishes the distance between first, second regulating block 4a, the 4b towards oppositely moving with previous direction.When as long as the mobile degree of adjustment sliding seat 726 is touched signal feedback device 728, give electric control box by signal feedback device 728 with signal feedback so, send signal by electric control box motor 721 is quit work, the rotating cycle of screw rod 727 can feed back to counter 724 by signal lever 7271.

In sum, regulating block actuating device 7 of the present utility model is for prior art, need not to be provided between a pair of first,

second guide rail

2,3, therefore can dwindle the overall volume of controlled flat knitting machine and can also make the shuttle 61 on the shuttle box 6 obtain satisfied centering or claim vertical effect with respect to needle-bar 8.

Claims

1, a kind of needle allocation mechanism of controlled flat knitting machine, it comprises a pair of first on the frame (1) that be located at parallelly, second guide rail (2,3), slide and fit over a pair of first on first guide rail (2), second regulating block (the 4a, 4b), slide and fit over a pair of the 3rd on second guide rail (3), the 4th regulating block (5a, 5b), slide and fit over first, second guide rail (2,3) shuttle box on (6) and is located at being used on the frame (1) and draws described first, second, the 3rd, the 4th regulating block (4a, 4b, 5a, 5b) Yun Dong regulating block actuating device (7), it is characterized in that: described regulating block actuating device (7) comprises a rope sheave mechanism (71) and a driving mechanism (72), rope sheave mechanism (71) is provided in first, second guide rail (2,3) on and with described first, second, the 3rd, the 4th regulating block (4a, 4b, 5a, 5b) connect, and driving mechanism (72) is located on the frame (1), with described first, second, the 3rd, the 4th regulating block (4a, 4b, 5a, any one regulating block 5b) connects and corresponding to described first, second guide rail (2, the sidepiece of one end of any guide rail 3).

2, the needle allocation mechanism of controlled flat knitting machine according to claim 1, it is characterized in that described rope sheave mechanism (71) comprises first, second top sheave (the 711a, 711b), first, second lower sheave (the 712a, 712b), first, the second transition pulley (713,714), pull rope (715) and first, second pulley base (716,717), first pulley base (716) is fixed on an end end of described first guide rail (2), second pulley base (717) is fixed on an end end of described second guide rail (3) and parallels with first pulley base (716), first top sheave (711a) is located on first pulley base (716) rotationally, it is last and corresponding with first top sheave (711a) that second top sheave (711b) is located at second pulley base (717) rotationally, first lower sheave (712a) is located on first pulley base (716) rotationally, it is last and corresponding with first lower sheave (712a) that second lower sheave (712b) is located at second pulley base (717) rotationally, the first transition pulley (713) is located at the sidepiece of the other end of first guide rail (2), and the second transition pulley (714) is located at the sidepiece of the other end of second guide rail (3), one end of one end of pull rope (715) and described first regulating block (4a) is connected, the middle part successively with the first transition pulley (713), described second regulating block (4b), a pair of first, second top sheave (the 711a, 711b), the 3rd regulating block (5a), the second transition pulley (714), described the 4th regulating block (5b) and a pair of first, second lower sheave (the 712a, 712b) connect, the other end of the other end and first regulating block (4a) is connected.

3, the needle allocation mechanism of controlled flat knitting machine according to claim 2 is characterized in that described the first, the 3rd regulating block (4a, 5a) corresponds to each other.

4, the needle allocation mechanism of controlled flat knitting machine according to claim 2 is characterized in that described the second, the 4th regulating block (4b, 5b) corresponds to each other.

5, the needle allocation mechanism of controlled flat knitting machine according to claim 2, the global shape of profile that it is characterized in that described first, second pulley base (716,717) is L-shaped, and the position of described a pair of first, second top sheave (711a, 711b) is than described a pair of first, second lower sheave (712a, 712b) height.

6, the needle allocation mechanism of controlled flat knitting machine according to claim 1, it is characterized in that described driving mechanism (72) comprises motor (721), decelerator (722), a pair of screw bolt seat (723), counter (724), pair of guide rods (725), one adjusts sliding seat (726), one screw rod (727), an a pair of signal feedback device (728) and a connecting rod (729), a pair of screw bolt seat (723) is fixed on the two ends of location-plate (7231), and the middle part of location-plate (7231) and described frame (1) are fixing and corresponding to the sidepiece of an end of described a pair of first guide rail (2), motor (721) is matched with decelerator (722), decelerator (722) is fixing and fixing with described location-plate (7231) with one of them screw bolt seat (723) in a pair of screw bolt seat (723), counter (724) is fixed therein on the screw bolt seat (723), pair of guide rods (725) each other with parastate be fixed on a pair of screw bolt seat (723), the two ends of adjustment sliding seat (726) and pair of guide rods (725) are sliding joins, the middle part is provided on the screw rod (727), screw rod (727) is positioned between the pair of guide rods (725), one end hub setting of screw rod (727) one of them screw bolt seat (723) in a pair of screw bolt seat (723) is gone up and is connect with decelerator (722) transmission, and the other end hub setting of screw rod (727) is on another screw bolt seat (723), and be stuck in screw bolt seat (723) and be fixed with a signal lever (7271) that is used for providing signal to described counter (724), a pair of signal feedback device (728) is located at the two ends of any guide rod (725) in the pair of guide rods (725) and is positioned at the both sides of an end of described adjustment sliding seat (726), one end of connecting rod (729) and described adjustment sliding seat (726) are connected, the other end disposes one and connects firmly head (7291), this connects firmly head (7291) and connects firmly with described the 3rd regulating block (4b), wherein, described motor (721), a pair of signal feedback device (728) sum counter (724) is electrically connected by the electric control box of circuit and controlled flat knitting machine.

7, the needle allocation mechanism of controlled flat knitting machine according to claim 6 is characterized in that described motor (721) is a clockwise and anticlockwise motor.

8, the needle allocation mechanism of controlled flat knitting machine according to claim 6, it is characterized in that described a pair of signal feedback device (728) for travel switch, microswitch or position near in the switch any one.

9, the needle allocation mechanism of controlled flat knitting machine according to claim 6 is characterized in that the below at the middle part of described adjustment sliding seat (726) is provided with nut (7261), and this nut (7261) matches with described screw rod (727).