KR100330283B1 - Weft Transfer Gripper - Google Patents

Abstract

The present invention relates to a weft conveying gripper (carrying gripper) for precisely replacing the weft from the weft feeder to the center of the inclined opening in a shuttleless loom to a drawing gripper that operates correspondingly. , A main body 1 having a wing 2 and having a synthetic resin layer laminated therein, a support 9 and a sliding member 11 connected to upper and lower sides of the main body 1, and a sliding member 11, one end, respectively. The part protrudes sharply upward and the other end is bent at approximately right angles and has a space part 14 penetrating the main body 1 and the support body 9, together with the washers 17 on both sides thereof. The fastening member 7 fixedly movable up and down by the support member 9 by 6 is moved up and down in the opposite direction to the movement of the fastening member 7 and integrally formed with the fastening member 7. Connected to the lower end of the free end 16 The lever 12 is formed in 13, divided into two parts so that there is a groove in the middle bar (5) fixed to the support (9), a plurality of steps are stacked in multiple layers and the projection 13 of the lever 12 By consisting of a leaf spring 10 and a protrusion 8 formed on the support 9 to be in contact with, the clamping force of the weft can be adjusted according to the type of the weft thread, the weft thread is not caught between the parts, trimming It is possible to replace the weft to the weft take-off gripper precisely without interruption of work, and to prevent the detachment of parts due to frictional resistance during continuous operation, and to increase the production efficiency by extending the life of the gripper due to its excellent durability. Let's go.

Description

Weft Transfer Gripper

The present invention relates to a weft conveying gripper in a non-weaving loom, and more specifically, a weft conveyer capable of carrying over the wefts dismissed in the weft supplying device to the center of the inclined opening by a weft take-off gripper operatively corresponding thereto. Viii) about the gripper.

In the North Korean looms, grippers are used to hold the wefts from one end of the loom and carry the wefts through the shed to the other end of the loom, among which weft transfer grippers hold the wefts from the weft feeder. And the weft take-out gripper serves to receive the weft conveyed from the weft conveying gripper at the center of the opening and transfer it to the opposite end of the loom.

Therefore, various kinds of grippers have been suggested so far in order to smoothly perform these functions of the grippers in the drum-free loom, and in particular, the weft clamping and releasing operation can be performed accurately, and the frictional resistance during operation is prevented by preventing wear. Providing a gripper that extends the service life, prevents the occurrence of trimming and moor, simplifies the structure for easy fabrication, prevents trimming by keeping the clamping force during gripping, and removes the dust accumulated on the gripper. Many developments are being made at home and abroad.

However, not only the gripper life is very short due to the friction received during operation, but also the trimmers are generated a lot so that the gripper is not produced satisfactorily.

The present inventors have been engaged in the production of the weft gripper for a long time and made an effort to improve the performance of the gripper with the above point in mind, and thus, the present invention has been completed.

That is, the present invention is to provide a weft conveying gripper that can properly adjust the clamping force of the gripper to suit a variety of types of weft and to maintain a constant clamping force during gripping.

In addition, the present invention is configured such that the fastening portion for connecting the gripper parts and the main body is not exposed to the outside, so that the fastening parts such as screws are not separated by friction, etc. according to the reciprocating operation, and the friction and abrasion are simplified due to the simplified structure. The present invention provides a weft transfer gripper that has reduced the warp and weft according to and improved durability.

1 is a perspective view of one embodiment of the weft carrier gripper according to the present invention;

Figure 2 is a rear view of the weft transfer gripper of Figure 1,

Figure 3 is a partially omitted partial detail showing only the main part of the means for gripping and releasing the weft yarn in the weft carrier gripper shown in FIG.

※ Explanation of symbols for main parts of drawing

1 body 2 wing part

3: slit 4: tip portion

5 bar 6 fastening member

7 clamping member 8 protrusion

9: support 10: leaf spring

11: sliding member 12: lever

13: projection 14: space part

15: bending portion 16: free end

17 washer

The weft carrier transfer gripper for the drumless loom according to the present invention is formed in a streamlined shape in the longitudinal direction, the main body having a wing, the support means for fastening and releasing the weft described below is fixed and connected to the upper side of the main body It is composed of a sliding member that supports him when moving the gripper along the opening formed by the inclinations, and as an actuating means for fastening and releasing the weft, a sharp tip tapering toward the end protrudes sharply upwards. The other end is bent at approximately right angles with a washer positioned on both sides of the fastening member is fixed to the support so as to move up and down on the support, the fastening member to move up and down in the opposite direction to the movement of the fastening member Two ski plains, levers that are integrally molded and connected with projections at the bottom of their free ends It consists of a bar that is divided into two parts with a groove in the middle part in the same shape as the upside down, and one end is fixed to the support, and a plurality of leaf springs are stacked side by side and positioned in contact with the projection of the lever. It is characterized by.

In addition, the tip portion of the support has a sharp arrowhead shape to form a slit to pass the weft gripped by the fastening member between the front end of the wing of the main body and the body wing to suit the weft It is formed to be slightly inclined toward the side, and is also characterized in that the protrusion is formed on one side so that the weft is hung on it.

In addition, it is also characterized in that it is configured to properly adjust the contact force between the fastening member and the bar according to the thickness of the weft.

In addition, it is also characterized in that the wing portion is completely bent in the U-shape to be bent in the main body is formed integrally with the main body to adjust the angle of the weft yarn so that the weft over the corresponding draw gripper is smoothly made.

Moreover, it is configured to prevent the fastening means connecting the parts and the main body from coming off due to the friction caused by the continuous operation of the gripper, and it is also configured to facilitate the removal of dust or fine hairs deposited in the continuous operation. It features.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a perspective view showing a preferred embodiment of the weft transfer gripper of the present invention as a whole, the body 1 is integrally provided with a wing portion 2 is formed in a long streamline in the longitudinal direction and forming a hook portion in the front Doing.

The wing portion 2 is formed so as to be tilted backward in the c-shape over the main body 1 and draped downward at an appropriate angle to facilitate the weft take-over to the weft take-off gripper operating in response to the weft transfer gripper. (See Figure 2).

In addition, the main body 1 is provided with a support 9 having a tip portion 4, which is slightly inclined toward the wing of the main body and shaped into a sharp arrow so as to be suitable for biasing the weft thread to the right side. It is connected to the front end of the wing portion (1) at a slight distance to form a slit (4) to move the weft gripping between them.

The lower end of the main body 1 is provided with a sliding member 11 for supporting the gripper when the gripper is moved along the opening formed by the inclinations, and the inner side of the main body 1 to prevent the release of the fastening means (Not shown) are stacked in accordance with the shape of the main body 1 in the longitudinal direction. The synthetic resin layer is usually in the form of a thin sheet, the thickness of which is preferably 1.5-4.0 mm, and 2-3 mm is most preferable in terms of frictional resistance and the like.

In addition, as shown in Figure 3, the fastening member (7) for gripping and releasing the wefts dismissed from the weft supply device (not shown) is made of a metal lamina (lamina), sharp toward the end of one end portion Fastening member is tapered and sharply projected upward and the other end is bent at approximately right angles to form a space portion 14 penetrated with the main body 1 therebetween, with the washer 17 positioned on both sides thereof. (6) is fixed to the support 9 so as to be movable up and down.

Furthermore, the fastening member 7 is integrally formed with a lever 12 which moves simultaneously in the direction opposite to the movement direction thereof, and this lever 12 is also formed by the fastening member 6 to support the support 9. ) The lever 12 is provided with a projection 13 below the free end thereof.

In addition, the bottom surface of the support 9, the bar (5) in contact with the fastening member 7 is firmly fixed, the bar 5 is the middle portion in the same shape as the two ski plates are located upside down It is formed by dividing it into two parts so that there is a groove in it and is made of hard metal lamina.

The bent portion 15 formed in the middle portion of the main body 1 has a plurality of stepped stacks, which provide a buffering force so that the vertical movement of the lever 12 and the vertical movement of the clamping member 7 connected thereto are smooth. The leaf spring 10 is placed in contact with the projection 13 of the lever 12.

Thus, a force is applied to the free end 16 of the lever 12 so that the lever 12 is pushed down while the fastening member 7 is raised so that the weft thread is positioned below the fastening member 7. The bar 12 is inserted between the bar 5, and when the lever 12 is raised by the left force of the leaf spring 10, the fastening member 7 is lowered to firmly grip the inserted weft.

In addition, a protrusion 8 is integrally formed on the support 9 to prevent the gripped weft from entering the inside of the gripper, and a space portion penetrating the main body 1 next to the protrusion 8 is formed. 14) is provided.

Therefore, according to the weft conveying gripper of the present invention, the weft yarn dismissed from the weft feeding device is held with a constant clamping force on the bar 5 by the fastening member 7 after passing through the slit 3 and held firmly. It moves to the center of the inclined opening while being discharged smoothly to the weft pull-out gripper which operates correspondingly at the center of the inclined opening, wherein the fastening action between the fastening member 7 and the bar 5 is dissolved. It is strong enough to overcome the resistance imposed on the weft, and when it is taken over by the weft take-off gripper, it is flexibly adjusted to release the weft without difficulty. By adjusting the tightening force of the fastening member 6 appropriately, the tightening force of the lever 12 and the fastening member 7 is appropriately adjusted according to the thickness of the weft yarn. Accurate gripping can be achieved.

In addition, the wefts held by the fastening member 7 are caught by the protrusions 8 formed on the support 9 so that they are not cut into the gripper.

Therefore, not only impurities such as dust or chopped dust accumulate on the gripper, in particular, the gripping and releasing means of the weft, but also these impurities are formed in the space portion 14 formed through the support 9 and the main body 1. It can be easily removed by the operation is made sure.

As described above, according to the present invention, the clamping force of the weft yarn can be easily adjusted according to the type of weft yarn, and it is possible to replace the weft pull-out gripper accurately without interruption of work due to trimming because the weft yarn is not caught between parts. It also prevents the parts from being separated by frictional resistance during continuous operation, which reduces the loom and extends the life of the gripper, increases the production efficiency, and is easy to manufacture by simplifying the gripper structure. Increased.

Claims (6)

1. In the weft conveying gripper for conveying the weft yarn to the center of the inclined opening in the drumless loom and accurately replacing it with the corresponding weft take-off gripper, A main body (1) formed in a streamlined shape in the longitudinal direction and having a wing portion; A support (9) to which the weaving and releasing operation means of the weft are fixed and connected to an upper side of the main body (1); A sliding member 11 supporting the gripper when moving the gripper along the opening formed by the slopes; The support portion 9 is provided by the fastening member 6 together with the washers 17 positioned on both sides of the one tip portion which is sharply tapered toward the end, and the other tip is curved at a right angle. A fastening member 7 fixedly movable upward and downward); A lever 12 formed integrally with the fastening member 7 so as to move up and down in a direction opposite to the movement of the fastening member 7 and having a protrusion 13 formed at a lower end of the free end 16; A bar (5) formed by dividing the two ski plates into two parts in such a shape as to be located upside down and having a groove in the middle part thereof and having one end fixed to the support (9); The weft carrier gripper, characterized in that the plurality consisting of a leaf spring (10) which is positioned to be in contact with the projection (13) of the lever (12) stacked side by side in multiple stages. 2. The support body (9) according to claim 1, wherein the support (9) has a sharp arrowhead shape and forms a slit (3) between the tip of the main body (1) and slightly inclined toward the wing (2) of the main body (1). Weft conveyance gripper, characterized in that the tip portion (4) formed on the one side, and the projections (8) are formed so that the weft is not caught between the gripper parts by engaging the extension of the gripped weft. The weft conveyance gripper according to claim 1, wherein the fastening member (7) can be appropriately adjusted according to the thickness of the weft thread by the fastening member (6). The weft conveyance gripper according to claim 1, wherein the wing portion (2) of the main body (1) is integrally formed with the main body (1) while being fully bent and bent in a U shape. The weft conveyance gripper according to claim 1, wherein a synthetic resin layer is laminated on an inner portion of the main body (1). The space portion (14) of claim 1, wherein a portion of the fastening member (7) connected to the fastening member (6) is formed to be bent at substantially right angles so as to penetrate between the main body (1) and the support (9). Weft transfer gripper, characterized in that formed.