CN201268762Y

CN201268762Y - Exit rapier head for loom

Info

Publication number: CN201268762Y
Application number: CNU2008201631311U
Authority: CN
Inventors: 张毓强; 杨国明; 曹国荣; 王火根
Original assignee: Jushi Group Co Ltd
Current assignee: Jushi Group Co Ltd
Priority date: 2008-08-18
Filing date: 2008-08-18
Publication date: 2009-07-08
Anticipated expiration: 2018-08-18

Abstract

The utility model discloses a weft yarn clamping and dragging part used for a weaving machine, particularly discloses a weft connecting rapier head with weft clamping function. The weft connecting rapier head used for a weaving machine comprises a main rod body, wherein the front end of the main rod body is provided with a rapier head with a hook, the main rod body is articulated with a pair of rod-shaped yarn clamping pliers, the hook of the rapier head is matched with the front end of the pair of yarn clamping pliers to form an upper contact surface, a clearance is left between the front end of the pair of yarn clamping pliers and the rapier head hook, and the hook on the rapier head is matched with the middle part of the pair of clamping pliers to form a lower contact surface. A resilient part is arranged below the pair of yarn clamping pliers, and is connected with a fixed pin of the yarn clamping pliers. The resilient part adopts a plate spring. When roving yarn enters the clamping surface, the clearance between the front end of the pair of yarn clamping pliers and the contact surface of the rapier head varies with the diameter of the roving yarn; moreover, the upward clamping force for clamping weft yarn of the yarn clamping pliers is reduced, thereby the range suitable for weft yarn of the weaving machine is widened. Compared with the prior art, the utility model has simple structure, is practical and convenient, and reliably and safely clamp and transport the roving yarn or multiple stand yarns.

Description

What be used for loom connects the latitude gripper head

Technical field:

The utility model relates to the wefting insertion parts that use on the loom in a kind of textile industry, promptly connects the latitude gripper head.

Background technology:

In Rapier looms, known weft yarn is carried and passed shed open is to realize by the gripper head of a pair of cooperation mutually, this is called the giver head and connects the latitude gripper head gripper head, connect the latitude gripper head and comprise main rod body, the hinged shaft-like clamp pincers in main rod body middle part, the end that the front end of clamp pincers extends the body front end setting is hook-shaped sword head for the sword head shape inboard, hook portion is an arc profile, weft yarn is held by the clamp clamp from the arc sections that mouth of hook portion introduces at the bottom of this hook, the unlatching and the closed action that cooperate the clamp pincers, realize weft yarn clamping traction, detach procedure, existing Chinese patent CN2255436Y of concrete structure and CN2332737Y are open, be exactly that yarn enters in the clamping face of clamp pincers and sword head shape at the gripper clamp closure state, when rove is made weft yarn, yarn diameter is bigger, keep yarn to be clamped in firmly in the clamping face of clamp pincers and sword head shape, become big clamp pincers with diameter so and must produce enough big displacement downwards at vertical direction, and require to guarantee not reduce clamp pincers chucking power upwards, guarantee normal weft traction.

Coarse yarn or multiply yarn are used in the technical fabric of special technique function more, especially with regard to their number, for the clamping device that connects the latitude gripper head commonly only tensioning stably have the weft yarn of general number, and be not suitable for keeping for extraordinarily thick weft yarn (generally greater than 300tex).

Summary of the invention:

Technical problem to be solved in the utility model is to overcome existing above-mentioned deficiency in the prior art, and provide a kind of be particularly suited for carrying rove be used for loom connect the latitude gripper head, this connects the latitude gripper head can guarantee coarse yarn or the safe and reliable clamping of multi cord, conveying.

The technical scheme in the invention for solving the above technical problem: what be used for loom connects the latitude gripper head, comprise main rod body, the main rod body front end is provided with the sword head of buckle, hinged shaft-like clamp pincers on the main rod body, hook on the sword head cooperates and constitutes with clamp pincers front end goes up contact-making surface, it is characterized in that between clamp pincers front end and the sword head hook gap being set, cooperate and constitute in the middle part of the hook on the sword head and the clamp pincers and descend contact-making surface.

By such scheme as can be known: the clamp icarceration is fashionable, clamp pincers are in sword head hook portion up and down in two contact-making surfaces all the time, the hook that the weft yarn of introducing enters on the sword head cooperates in the last contact-making surface clamping face that constitutes with clamp pincers front end, clamp pincers are anterior to be that fulcrum is opened the weft yarn clamping face downwards with following contact-making surface, rove is firmly clamped and draws.When contact-making surface formed wearing and tearing on clamp pincers front end and the gib head, by the position-limiting action of contact-making surface down, clamping face still was in and closely cooperates, and so not only reaches suitable coarse yarn wefting insertion, and has overcome the maintenance failure that clamping face weares and teares and causes.

The utility model is provided with an elastomeric element leaf spring below the clamp pincers, and is connected with clamp pincers steady pin.Clamp pincers backup plate spring upwards increases the chucking power of clamp pincers front end and sword head hook portion clamping face, reach the purpose of safe wefting insertion, when contact-making surface forms wearing and tearing on clamp pincers front end and the gib head, leaf spring elastic force still is in clamping face and closely cooperates, so not only reach suitable coarse yarn wefting insertion, and overcome the maintenance failure that the clamping face wearing and tearing cause.

The utility model compared with prior art has the following advantages and effect: 1, simple in structure, practical and convenient, guarantee the safe and reliable clamping of coarse yarn or multi cord, conveying.

Description of drawings:

Fig. 1 is the vertical view of the utility model embodiment 1.

Fig. 2 is the front view of the utility model embodiment 1.

Fig. 3 is the sword head enlarged drawing of Fig. 2.

Fig. 4 is the A-A cutaway view of Fig. 3.

Fig. 5 is a B-B cutaway view among Fig. 3.

Fig. 6 is the front view of the utility model embodiment 2.

Fig. 7 is that the master of leaf spring shown in Figure 6 looks enlarged drawing.

Fig. 8 is the enlarged drawing of overlooking of leaf spring shown in Figure 6.

The specific embodiment:

The utility model is applicable to the stable holding that realizes the different thicknesses weft yarn, widens the range of application that connects the latitude gripper head.

Embodiment 1:

Present embodiment connects the latitude gripper head and comprises main rod body 4, main rod body 4 front ends are provided with the sword head 1 of buckle, hinged shaft-like clamp pincers 2 on the main rod body 4, hook on the sword head 1 and clamp clamp 2 front ends and cooperate and constitute and go up contact-making surface 1a, clamp clamps between the hook lower end on 2 front ends and the sword head 1 gap 1c is set, and the hook on the sword head 1 and clamp clamp 2 middle parts and cooperate and constitute contact-making surface 1b down.Clamp pincers 2 (are prior art by the stage clip of back body, not shown on the figure) clamp pincers 2 are remained between two contact-making surfaces up and down of sword head 1, even after the last contact-making surface 1a wearing and tearing, clamp pincers 2 are under the effect of stage clip elastic force, clamp can be clamped still that contact-making surface 1a closely contacts on 2 front ends and the sword head 1, clamp pincers 2 form balance pivot at 1 time contact-making surface 1b of sword head place in addition, and the weft yarn that enters contact-making surface 1a can clamp under the 2 lever elastic force effects at clamp and firmly grip, and reaches the purpose of smooth weft traction.

Embodiment 2:

The present embodiment agent structure is with embodiment 1, but increased an elastomeric element 6, and elastomeric element 6 is pressed on clamp pincers 2 on the contact-making surface 1a by elastic force, and purpose is to improve clamp to clamp 2 chucking powers longitudinally.Present embodiment elastomeric element 6 adopts leaf spring, and leaf spring is arranged on below the clamp pincers 2, is connected with clamp pincers steady pin 5, and leaf spring and clamp pincers 2 are on same horizontal plane.When clamp pincers 2 opened and closed, leaf spring maintained static below clamp pincers 2 and clamps 2 active forces that make progress at vertical direction to clamp, increases the grasping force of clamping face.

Elasticity when leaf spring is specifically implemented keeps action intensity to determine according to material, shape and the thickness of this plate and according to different corresponding connected systems, these all are known to those skilled in the art, and one of possible embodiment of leaf spring is illustrated among Fig. 7, Fig. 8.Leaf spring comprises anterior 6c and rear portion 6d, the front and rear part is vertical, is fixed on clamp by clamp pincers steady pin 5 and clamps below 2, and vertically rear portion 6d provides simple and effectively constraint, and do not have the free degree, make leaf spring be fixed on the main body and can not clamp steady pin 5 around clamp and rotate.The size of the required loading force of the anterior 6c of the work of leaf spring should clamp 2 according to clamp and determine the particularly length of the thickness of leaf spring and anterior 6c decision with the chucking power size of the clamping face of sword head 1 hook portion and the geometrical construction of this leaf spring.The leaf spring that has different characteristic by replacing can make gripper head adapt to different weft yarns uses fast simply, and in these different weft yarns, yarn has yarn with different or smoothness in various degree.

Claims

1, a kind of be used for loom connect the latitude gripper head, comprise main rod body, the main rod body front end is provided with the sword head of buckle, hinged shaft-like clamp pincers on the main rod body, hook on the sword head cooperates and constitutes with clamp pincers front end goes up contact-making surface, it is characterized in that: between clamp pincers front end and the sword head hook gap is set, cooperates and constitute in the middle part of the hook on the sword head and the clamp pincers and descend contact-making surface.

2, the latitude gripper head that connects according to claim 1 is characterized in that: below the clamp pincers elastomeric element is set, elastomeric element is connected with clamp pincers steady pin.

3, the latitude gripper head that connects according to claim 2, it is characterized in that: described elastomeric element is a leaf spring.