CN1140657C

CN1140657C - Gripper and device for picking a weft yarn

Info

Publication number: CN1140657C
Application number: CNB008074275A
Authority: CN
Inventors: ��ɡ��; 沃纳·施密德林
Original assignee: Textilma AG
Current assignee: Textilma AG
Priority date: 1999-05-17
Filing date: 2000-04-17
Publication date: 2004-03-03
Anticipated expiration: 2020-04-17
Also published as: AU3652000A; DE50005091D1; TW508383B; KR100610393B1; CN1350605A; EP1181402A1; DE29908675U1; JP2002544407A; KR20010075642A; EP1181402B1; ATE258242T1; WO2000070136A1; JP4463433B2

Abstract

The gripper comprises a housing (1), a clamping part (5) what a hook-like clamping section (12) receiving a weft yarn and a clamping unit (6) with a clamping tongue (22), a torsion bar (23) and a cover plate (7). The clamping tongue (22) is pivotable, cooperates with the clamping section (12) and is influenced by the torsion bar (23) in order to clamp the weft yarn. The clamping force is applied by the torsion bar (23) and the effect of the clamping is neutralized by the cover plate (7). One advantage of the gripper is that it consists of a minimum number of parts. Another advantage is that it is extremely compact.

Description

Projectile shuttle and the device that is used to pick up weft yarn

The present invention relates to a kind of as claim 1 projectile shuttle as described in the preamble and the loom that is used to pick up the device of weft yarn and have this device.

Projectile shuttle with different structure yarn folder is for known to the public.Yarn folder mainly is made up of the clamping part of a fixing clamping part, an activity, spring element and operating mechanism, and difference is the clamping form and clamps to move.

For a kind of projectile shuttle, fixing clamping part is made of the housing that has the hook-shaped gripping section that is used to admit weft yarn, and movable clamping part constitutes by clamping tongue, clamps tongue and can vertically move along housing under helical spring effect, is used to clamp weft yarn.Operating mechanism with clamp tongue and be connected, be used for guiding and clamp tongue to overcome spring action mobile in housing.

For another kind of projectile shuttle, fixing clamping part is made of the housing that has the hook-shaped gripping section that is used to admit weft yarn, and movable clamping part is made of clamping bar, and clamping bar can rotate around the axle perpendicular to the housing longitudinal extension under helical spring effect, so that clamp weft yarn.

Helical spring application is proved to be defective, fixes and/or guide helical spring space and device because will be useful on for this reason.

A kind of projectile shuttle of approaching the above-mentioned type of the present invention is disclosed by Germany Patent document DE-B-1 087 088.In this projectile shuttle, torsionspring is made of helical spring and is arranged on the rotating body of rod parts, has the clamping tongue on these body of rod parts.Torsionspring is bearing on the housing parts by the spring arm of first projection, the spring arm by second projection be bearing in one with alignment pin that body of rod parts are connected on and therefore make body of rod parts have elastic torque.This design needs a lot of structure spaces on the direction transverse to body of rod axis, therefore, this forms restriction for the necessary little and tall and thin version of projectile shuttle.The spring force of torsionspring can not be adjusted.

The objective of the invention is to improve the projectile shuttle of the above-mentioned type.

Purpose of the present invention realizes by the described feature of claim 1.

The attainable advantage of the present invention mainly is, projectile shuttle has minimum single parts and ten minutes compact structure, and on transverse to the direction of body of rod component axes, only need very little structure space, and can be with small clamping force work, clamping force can be adjusted in addition.

The device that the present invention is used to pick up weft yarn characterizes by the described feature of claim 8.

By means of accompanying drawing the present invention is described below.

In the accompanying drawing:

Fig. 1 is the view according to projectile shuttle of the present invention;

Fig. 2 is for to dissect the section diagrammatic sketch that projectile shuttle obtains along the cutting line II-II among Fig. 1;

Fig. 3 is along the view of the arrow D among Fig. 1 to projectile shuttle;

Fig. 4 is for to dissect the section diagrammatic sketch that projectile shuttle obtains along the cutting line IV-IV among Fig. 1;

Fig. 5 is for to dissect the section diagrammatic sketch that projectile shuttle obtains along the cutting line V-V among Fig. 1;

Fig. 6 is for to dissect the section diagrammatic sketch that projectile shuttle obtains along the cutting line VI-VI among Fig. 1.

Projectile shuttle 1 and part shuttle bar band 2 have been shown in Fig. 1 and Fig. 2.Projectile shuttle 1 has a housing 4, clamping part 5, a clamping unit 6 and is used to handle the fish platee 7 of clamping unit.

Housing 4 is made of plastics and has a hole 8 that is used to admit clamping unit 6.Clamping part 5 is made of metal and is connected with housing 4.

Clamping part 5 has the portion's section 11 that is used for fixing on housing 4, hook-shaped gripping section 12 and the annex 13 that is used to admit weft yarn, and this annex overlap joint shuttle bar band 2 is so that prevent to damage warp yarn when picking up weft yarn.Hook-shaped gripping section 12 is furnished with the clamping area (not shown).In hook-shaped gripping section, form a hole 14.

Clamping unit 6 comprises that a tubular rod body component 21, one clamp tongue 22 and a torque rod 23, and this torque rod is arranged in the body of rod parts and at one end is connected with body of rod parts 21 by a pin 24.These body of rod parts 21 have two ring-type shaft shoulders 25, are used for body of rod parts 21 are supported on fish platee 7 places.Clamp tongue 22 and be furnished with attaching parts 26, these attaching parts at one end are connected with body of rod parts and have a guiding axle journal 27 at the other end.Clamping tongue 22 is close to guiding axle journals 27 and is connected like this with attaching parts 26, makes clamping tongue 22 extend radially attaching parts 26.Clamping unit has a sleeve 28 that has tool engagement hole 29, and this sleeve is fixing like this on the other end of torque rod 23, makes engaging hole freely to touch.Sleeve 28 is arranged on 8 the insides, hole of housing 4 rotationally and is connected with torque rod 23 by a pin 30.This sleeve 28 is used for clamping unit 6 is fixed on housing 4 the insides in addition.

In Fig. 3 and 4, on hook-shaped gripping section 12 and clamping tongue 22, be 45 ° respectively and

clamping area

33,34 be set and be furnished with groove 35.This has the advantage that the increase clamping area increases groove quantity in other words, makes the clamping length of weft yarn 36 prolong, and friction strengthens and can reduce clamping force, to prevent to damage weft yarn.

As shown in Figure 5, the fish platee 7 of manipulation clamping part 5 is connected with body of rod parts 21 by clamping.Be provided with a screw 37 for this reason.

As shown in Figure 6, a clamp 41 and a screw 42 are arranged on housing 4 the insides, are used for reliable clamping sleeve 28.As what mentioned, clamping unit 6 is fixed on housing 4 the insides by using a sleeve 28.

In the ordinary course of things, regulate clamping force according to the characteristic of weft yarn.Clamping action can be cancelled by unclamping bolt 42 for this reason, and can sleeve 28 rotations can be made by (a not illustrating) instrument to sleeve 28.This rotatablely moves to make and clamps tongue with respect to hook-shaped gripping section 12 rotations.Then by screwing the clamping action that bolt 30 can recover sleeve 28.

When picking up weft yarn, fish platee 7 is moved and make thus and clamp that tongue 22 rotates with respect to hook-shaped gripping section 12 and weft yarn is clamped in the hook-shaped gripping section by executing agency's (not shown) that is arranged on the projectile shuttle guide rail.The elasticity that resets based on clamping unit 6 that clamps tongue realizes.

Claims

1. projectile shuttle that is used to pick up weft yarn, it comprises a housing (1), a clamping part (5) that has the hook-shaped gripping section (12) of admitting weft yarn, one with the coefficient rotating clamping tongue of gripping section (22) and an operating mechanism (7) that is used to clamp tongue, this clamping tongue is connected with rotatable body of rod parts (21) and is under the effect of torsionspring (23) and is used to clamp weft yarn, it is characterized in that, this torsionspring is made of and is arranged on one heart the body of rod parts the inside of tubular structure torque rod spring (23), wherein, the antitorque commentaries on classics of torque rod spring (23) one ends and body of rod parts (21) ground is connected and the other end by adjustment device (28; 41,42) be connected with housing, be used to adjust the clamping force that clamps tongue.

2. projectile shuttle as claimed in claim 1 is characterized in that, described torque rod spring (23) is guided or is bearing in the zone of hook-shaped gripping section (12).

3. projectile shuttle as claimed in claim 1 or 2 is characterized in that, described hook-shaped gripping section (12) and clamping tongue (22) have a clamping area (33,34) that has groove (35) respectively.

4. projectile shuttle as claimed in claim 3 is characterized in that, described clamping area (33,34) is about 45 ° of settings with respect to shuttle bar band (2).

5. as each described projectile shuttle in the claim 1 to 4, it is characterized in that attaching parts (26) that are rotatably supported in housing the inside are connected with body of rod parts (21) and support clamping tongue (22).

6. projectile shuttle as claimed in claim 5 is characterized in that, described attaching parts (26) are directed to or are bearing in the zone of hook-shaped gripping section (12).

7. projectile shuttle as claimed in claim 1 is characterized in that, the operating mechanism (7) of described clamping tongue (22) is fixed on the body of rod parts (21).

8. one kind has shuttle bar band (2) and has the device that is used to pick up weft yarn as projectile shuttle as described in above-mentioned each claim, it is characterized in that housing (4) is fixed on that shuttle bar band (2) is gone up and clamping part (5) has the annex (13) of an overlap joint shuttle bar band (2).

9. loom, it has device as claimed in claim 8.