CN201485600U

CN201485600U - Yarn gripper

Info

Publication number: CN201485600U
Application number: CN2009201904756U
Authority: CN
Inventors: 董立强
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-30
Filing date: 2009-07-30
Publication date: 2010-05-26
Anticipated expiration: 2019-07-30

Abstract

The utility model relates to a yarn gripper which belongs to the technical field of textile machinery and comprises an upper presser food and a lower presser foot, wherein one end of the upper presser foot is fixed on a gripper head. The yarn gripper is characterized in that one end of the upper presser foot is fixed on the gripper head and the other end is jointed with the lower presser foot under the upper presser foot to form a yarn gripper surface, and a spring piece is arranged on the upper presser foot and is tightly assembled with the upper presser foot and the lower presser foot through bolts into a whole. The utility model adopts a design of the yarn gripping surface, and can simultaneously grip 3-4 yarns at most, thereby effectively improving the defect of poor adaptability because the original yarn gripper only grips one yarn. By arranging a groove on the yarn gripping surface, the resistance is reduced and the release force is improved. The utility model can be widely applied to various strip yarns, oil-looking fabrics, glass fibers and the like, and has the advantage of good popularity. Meanwhile, by additionally arranging the spring piece, the design of the original sponge block is removed, the reset and the buffer can be effectively carried out, and the release sensitivity is improved.

Description

Yarn gripper

Technical field

The utility model relates to a kind of yarn gripper, particularly is meant a kind of yarn gripper that is applied on the Rapier looms sword head.

Background technology

At present, the weft yarn handing-over of Rapier looms sends by yarn gripper on the sword head to be finished, the existing defective of existing yarn gripper structure mainly is: 1, go up and adopt locating slot and projection to realize the location between presser feet and the following presser feet, a sponge block is installed pressing down the underfooting face, plays elastic reaction, to regulate sensitivity, but it is not high to adopt sponge block to discharge sensitivity, 2, because the yarn clipping portion frictional force of yarn gripper is excessive, easily cause heap yarn (wadding), releasing effect is bad; 3, because yarn clipping portion adopts is the front end of yarn gripper, a yarn clipping point by presser feet up and down intersects to form can only press from both sides a yarn, and clamping force is not enough, easily cause to can't clip yarn, or after clamping yarn, when pulling out owing to too tightly cause the sensitivity of release not high, thereby cause filoplume even broken yarn.

The utility model content

The purpose of this utility model is to provide the yarn gripper that a kind of yarn clipping is firm, resistance is little, release is highly sensitive and versatility is good,

The utility model is realized in the following way: a kind of yarn gripper, comprise presser feet and following presser feet, last presser feet one end is fixed on the sword head, it is characterized in that, last presser feet one end is fixed on the sword head, the other end fits and forms yarn clipping face with being installed on following presser feet below the presser feet, spring leaf be installed on presser feet above, and be integral by bolt and last presser feet, time presser feet close-fitting.

The utility model further is provided with as follows:

Last presser feet one end is the yarn clipping end, the other end is a positioning end, positioning end is provided with several locating holes, to go up presser feet by locating hole is installed on the sword head, the head of yarn clipping end is curved slightly projection upwards, the head end of yarn clipping end is extended the section of being in line gradually, and upwards arching upward for one section in the centre of yarn clipping end and positioning end forms the portion that arches upward.

The portion of arching upward is arc, trapezoidal or rectangle etc.

The yarn clipping end of following presser feet is corresponding with last presser feet yarn clipping end, the head of following presser feet yarn clipping end offers skewed slot, the skewed slot of following presser feet and the projection of last presser feet form a trumpet-shaped yarn clipping mouth, in the terminal section of being in line gradually of extending of the head skewed slot of following presser feet yarn clipping end, and parallel applying with straightway that the head lug tips of last presser feet yarn clipping end extends to form, the common yarn clipping face of forming, any one side at yarn clipping face offers the evenly distributed groove in some roads, the other end of following presser feet is set to bending part, and the position that presser feet arches upward on the bending part correspondence is to be interlocked with arching upward.

In the one side of last presser feet, or the one side of time presser feet, or offer the evenly distributed groove in some roads on the one side of the one side of last presser feet and following presser feet.

Described groove is straight trough or skewed slot.

Spring leaf is installed on the position of the corresponding portion that arches upward in presser feet top, upwards arch upward with suitable with the portion that arches upward of last presser feet in the middle part of spring leaf, middle part at spring leaf is provided with installing hole, at last presser feet, down the position of corresponding installing hole is respectively equipped with hole and fixing hole on the presser feet, screw bolt passes installing hole, hole, fixing hole are with spring leaf, last presser feet, following presser feet close-fitting, wherein, the aperture in installing hole and hole is slightly larger than the diameter of bolt, the aperture of fixing hole and the diameter of bolt are suitable, fixing hole has internal thread, to be meshed with bolt.

Curved, the trapezoidal or rectangle of portion etc. arches upward in the middle of the spring leaf.

The beneficial effects of the utility model are as follows:

1, the utility model adopts the design of yarn clipping face, can realize 3～4 of yarn clippings simultaneously at most, improved original yarn gripper effectively owing to can only press from both sides a yarn and shortcoming poor for applicability, by on yarn clipping face, slotting, reduced resistance, improved release force, the utility model can be widely used in various flat filaments, glossy silk, ripple fiber etc., has the good advantage of versatility.

2, by setting up spring leaf, remove the design of original sponge block, can reset effectively and cushion, improved release sensitivity simultaneously.

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of presser feet on the utility model;

Fig. 3 is the structural representation of presser feet under the utility model;

Fig. 4 is the structural representation of the utility model spring leaf.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, yarn gripper of the present utility model comprises presser feet 1 and following presser feet 2, last presser feet 1 one ends are fixed on the sword head, following and the last presser feet 1 that following presser feet 2 is installed on presser feet 1 fits, spring leaf 3 be installed on presser feet 1 above, and by bolt 4 with last presser feet 1, presser feet 2 close-fittings are integral down.

In conjunction with shown in Figure 2, last presser feet 1 one ends are yarn clipping end 11, the other end is a positioning end 13, positioning end 13 is provided with several locating holes 14, be set to 2 in the present embodiment, to go up presser feet 1 by locating hole 14 is installed on the sword head, the head of yarn clipping end 11 is curved slightly projection 111 upwards, to form trumpet-shaped yarn clipping mouth 5 with following presser feet 2, the head 111 terminal sections of being in line gradually of extending of yarn clipping end 11, one section is upwards arched upward and forms the portion 12 that arches upward in the centre of yarn clipping end 11 and positioning end 13, and the portion 12 that arches upward can be arc, trapezoidal or rectangle etc. its objective is to have certain elastic force when fiting mutually with following presser feet 2.

In conjunction with shown in Figure 3, following presser feet 2 is a yarn clipping end 21 with last presser feet yarn clipping end 11 corresponding ends, the head of yarn clipping end 21 offers skewed slot 211, the head skewed slot 211 of following presser feet 2 forms a trumpet-shaped yarn clipping mouth 5 with the head projection of last presser feet 1 111, the head skewed slot 211 terminal sections of being in line gradually of extending at following presser feet yarn clipping end 21, and parallel applying with straightway that head 111 ends of last presser feet yarn clipping end 11 extend to form, the common yarn clipping face 6 of forming, any one side at yarn clipping face, one side or the following presser feet of promptly going up presser feet simultaneously offer groove 61, in the present embodiment, on the one side of following presser feet 2, offer the evenly distributed groove in some roads 61, groove 61 can be selected straight trough or skewed slot, and present embodiment is a straight trough, and groove 61 preferably is set to 7, like this, because the setting of groove 61, yarn clipping face 6 has become the line contact by original face contact, and its advantage is: 1, strengthened heap yarn space; 2, reduced resistance when putting yarn; 3, improved and put yarn sensitivity; 4, reduced the generation of broken yarn.Certainly, can also groove 61 all be set yarn clipping face 6 two sides, as top be set to straight-line groove, below be set to oblique trunking; Or will above be set to oblique trunking, below be set to straight-line groove.The other end of following presser feet 2 is set to bending part 22, and bending part 22 is corresponding to be gone up presser feets and arch upward 12 position 12 being interlocked with arching upward, finishing location and close-fitting,

In conjunction with shown in Figure 4, the arch upward position of portion 12 of the presser feet 1 top correspondence that is installed on spring leaf 3, the middle part 31 of spring leaf 3 is upwards arched upward curved, trapezoidal or rectangle etc., with suitable with the portion of arching upward 12, be provided with installing hole 32 at the middle part of spring leaf 3, at last presser feet 1, the position of corresponding installing hole 32 is respectively equipped with hole 15 and fixing hole 23 on the following presser feet 2, bolt 4 passes installing hole 32 successively, hole 15, hole 23 is with spring leaf 3, last presser feet 1, following presser feet 2 close-fittings, wherein, the aperture in installing hole 32 and hole 15 is slightly larger than the diameter of bolt 4, the diameter of the aperture of fixing hole 23 and bolt 4 is suitable, fixing hole 23 has internal thread, to be meshed with bolt 4, like this, last presser feet 1 one ends are fixed on the sword head, following presser feet 2 and spring leaf 3 are installed on the presser feet 1 by bolt 4, bolt 4 one ends are meshed with the fixing hole 23 of following presser feet 2, be stiff end, the other end is because the effect of nut, make (in the bolt length range) about presser feet 1 and spring leaf 3 energy, about the aperture of hole 15 (installing hole 32 with) movable certain distance, for obtaining better yarn clipping effect, installing hole 32 with spring leaf is the boundary, its end near yarn clipping face 6 slightly is longer than its end away from yarn clipping face 6, the purpose of She Zhiing is like this, can make yarn clipping face 6 keeping parallelism degree as much as possible, when carrying out the threads clamping, equal state can be remained at, when yarn discharges, also equal state can be remained on simultaneously.

Operation principle of the present invention is as follows: during work, yarn is entered by yarn clipping mouth 5, because the effect of yarn, following presser feet 2 sinks, with the slit of last presser feet 1 disengagement one one thread, yarn enters into yarn clipping face 6 by yarn clipping mouth 5 ends, at this moment, first one thread is held, because the effect of spring leaf 3, following presser feet 2 is returned to original state, and second is entering into yarn clipping mouth 5 and by 6 clampings of yarn clipping face, and so forth, but maximum clamping 4 one threads.

Claims

1. yarn gripper, comprise presser feet and following presser feet, last presser feet one end is fixed on the sword head, it is characterized in that, last presser feet one end is fixed on the sword head, the other end fits and forms yarn clipping face with being installed on following presser feet below the presser feet, spring leaf be installed on presser feet above, and be integral by bolt and last presser feet, time presser feet close-fitting.

2. a kind of yarn gripper as claimed in claim 1, it is characterized in that: going up presser feet one end is the yarn clipping end, the other end is a positioning end, positioning end is provided with several locating holes, to go up presser feet by locating hole is installed on the sword head, the head of yarn clipping end is curved slightly projection upwards, and the head end of yarn clipping end is extended the section of being in line gradually, and upwards arching upward for one section in the centre of yarn clipping end and positioning end forms the portion that arches upward.

3. a kind of yarn gripper as claimed in claim 1 or 2 is characterized in that: the portion of arching upward is arc, trapezoidal or rectangle etc.

4. a kind of yarn gripper as claimed in claim 1, it is characterized in that: the yarn clipping end of following presser feet is corresponding with last presser feet yarn clipping end, the head of following presser feet yarn clipping end offers skewed slot, the skewed slot of following presser feet and the projection of last presser feet form a trumpet-shaped yarn clipping mouth, in the terminal section of being in line gradually of extending of the head skewed slot of following presser feet yarn clipping end, and parallel applying with straightway that the head lug tips of last presser feet yarn clipping end extends to form, the common yarn clipping face of forming, any one side at yarn clipping face offers the evenly distributed groove in some roads, the other end of following presser feet is set to bending part, and the position that presser feet arches upward on the bending part correspondence is to be interlocked with arching upward.

5. as claim 1 or 4 described a kind of yarn grippers, it is characterized in that: in the one side of last presser feet, or the one side of time presser feet, or offer the evenly distributed groove in some roads on the one side of the one side of last presser feet and following presser feet.

6. a kind of yarn gripper as claimed in claim 5 is characterized in that: described groove is straight trough or skewed slot.

7. a kind of yarn gripper as claimed in claim 1, it is characterized in that: spring leaf is installed on the position of the corresponding portion that arches upward in presser feet top, upwards arch upward with suitable with the portion that arches upward of last presser feet in the middle part of spring leaf, middle part at spring leaf is provided with installing hole, at last presser feet, the position of corresponding installing hole is respectively equipped with hole and fixing hole on the following presser feet, the screw bolt passes installing hole, the hole, fixing hole is with spring leaf, last presser feet, following presser feet close-fitting, wherein, the aperture in installing hole and hole is slightly larger than the diameter of bolt, the aperture of fixing hole and the diameter of bolt are suitable, fixing hole has internal thread, to be meshed with bolt.

8. a kind of yarn gripper as claimed in claim 7 is characterized in that: curved, the trapezoidal or rectangle of portion etc. arches upward in the middle of the spring leaf.