阅读说明：本技术 一种电磁引纬夹纬器、打开器及其夹纬方法 (Electromagnetic weft insertion weft gripper, opener and weft gripping method thereof ) 是由 殷俊清 赵诚诚 陈永当 程云飞 顾金芋 于 2019-09-04 设计创作，主要内容包括：本发明涉及了一种电磁引纬夹纬器、电磁引纬夹纬器的打开器及电磁引纬夹纬器的夹纬方法。本发明的电磁引纬夹纬器的夹纬器夹子包括隐蔽钳口、夹臂和在夹臂间的弹性元件、隐蔽钳口外侧的向对极性相反布置的磁铁,夹纬器的打开器包括铁芯、通电线圈,在隐蔽钳口开口方向两侧。在纬线交接前,打开器通电线圈通电,铁芯吸引磁体,磁铁带动隐蔽钳口打开,弹性元件被压缩；夹纬器夹纬线后,通电线圈断电,磁铁相互吸引,隐蔽钳口进行闭合,纬纱牢牢钳紧。避免机械接触打开隐蔽钳口,提高夹纬效率和夹纬器寿命。(The invention relates to an electromagnetic weft insertion weft gripper, an opener of the electromagnetic weft insertion weft gripper and a weft clamping method of the electromagnetic weft insertion weft gripper. The invention discloses a weft gripper clamp of an electromagnetic weft insertion weft gripper, which comprises a hidden jaw, clamping arms, an elastic element between the clamping arms, and magnets arranged on the outer side of the hidden jaw and opposite to each other in polarity, wherein an opener of the weft gripper comprises an iron core and an electrified coil, and the iron core and the electrified coil are arranged on two sides of the opening direction of the hidden jaw. Before the weft is handed over, the opener is electrified with the coil, the iron core attracts the magnet, the magnet drives the hidden jaw to open, and the elastic element is compressed; after the weft gripper clamps the weft, the coil is powered on to cut off the power, the magnets attract each other, the jaw is hidden to be closed, and the weft is firmly clamped. The mechanical contact is avoided to open the hidden jaw, the weft clamping efficiency is improved, and the service life of the weft clamping device is prolonged.)

1. The utility model provides an electromagnetic weft insertion weft gripper, includes weft gripper shell and weft gripper clip (1), weft gripper clip (1) is adorned in the weft gripper shell, weft gripper clip (1) is including hiding keeping silent (11) and arm lock (12), its characterized in that, weft gripper clip (1) still includes elastic element (13) and two magnets (14, 15), elastic element (13) fixed connection in between arm lock (12), two magnets (14, 15) are installed respectively in hiding two relative lateral sides of jaw (11), the relative polarity that leans on the near-end of two magnets (14, 15) is different.

2. Electromagnetic weft insertion gripper according to claim 1, characterized in that the hidden jaw (11) has a recessed hole (16) on both outer sides for the placement of a magnet.

3. Electromagnetic weft insertion gripper according to claim 1, characterized in that the inner side of the clamping arm (12) is provided with a U-shaped notch (17) for fixing the elastic element.

4. Opener (2) for an electromagnetic weft insertion gripper according to claim 1, comprising a pair of electromagnetic assemblies (21), said electromagnetic assemblies (21) being arranged symmetrically on either side of the opening direction of the blind jaw (11).

5. Opener of an electromagnetic weft insertion gripper according to claim 4, characterized in that the electromagnetic assembly (21) comprises an electromagnetic device (211), a receiving slot (212), the electromagnetic device (211) being fixedly mounted in the receiving slot (212), the electromagnetic device (211) comprising an iron core (2111), an electrical coil (2112), the electrical coil (2112) being wound on the iron core (2111), the axis of the iron core (2111) coinciding with the horizontal centre line of the magnets (14, 15).

6. Opener of an electromagnetic weft insertion gripper according to claim 5, characterized in that the receiving slot (212) comprises a mounting hole (2121), a guide hole (2122), through which the energized coil (2112) passes, and the iron core (2111) is fixed through the mounting hole (2121).

7. A weft insertion method of an electromagnetic weft insertion gripper according to claim 1, comprising the steps of:

(1) when the weft is to be delivered to the electromagnetic weft insertion weft gripper, an energizing coil (2112) of an opener of the electromagnetic weft insertion weft gripper is powered on, magnets (14, 15) on a clamp of the weft insertion weft gripper are attracted through an iron core (2111), the magnets (14, 15) drive a hidden jaw (11) to be opened, and an elastic element (13) between two clamp arms (12) is compressed;

(2) after the weft is fed into the electromagnetic weft insertion gripper, the power supply connected with the electrified coil (2112) is cut off;

(3) the elastic element (13) restores the shape, and the two magnets (14 and 15) attract each other to drive the hidden jaw (11) to close so as to clamp the weft yarn firmly.

8. The method of claim 5: characterized in that, in the step (3), when the energizing coil (2112) is de-energized, reverse electricity is applied.

Technical Field

The invention belongs to the technical field of electromagnetic weft insertion, and particularly relates to a weft clamping device, an opener and a weft clamping method of the electromagnetic weft insertion.

Background

The existing weft gripper (shuttle) consists of a shell and a clamp (shuttle clamp), wherein the clamp is arranged in an inner cavity of the shell, and the weft yarn on one side of the loom is taken to the other side through a hidden jaw of the clamp. Before weft insertion, the clamp is opened by the shuttle clamp pressing rod, the hidden jaw on the clamp is opened immediately to carry out weft transfer with a weft delivering device, and the hidden jaw is closed after the shuttle yarn is clamped and then enters a weft insertion working stroke. Wherein, the mode that the hidden jaw of the shuttle clamp is opened by adopting the mode that the direct contact is driven by external force to open the hidden jaw of the shuttle clamp has a plurality of defects: the surface of the weft thread holder is stressed intensively and is easy to damage, the service life is shortened, the shuttle is easy to deviate from a weft insertion route, the maintenance cost is increased, and the weft insertion efficiency is influenced.

Disclosure of Invention

The invention provides an electromagnetic weft insertion weft gripper, an electromagnetic weft insertion opener and a weft insertion method.

The electromagnetic weft insertion weft gripper comprises a weft gripper shell and a weft gripper clamp, wherein the weft gripper clamp is arranged in the weft gripper shell, the weft gripper clamp comprises a hidden jaw and a clamping arm, the weft gripper clamp further comprises an elastic element and two magnets, the elastic element is fixedly connected between the clamping arms, the two magnets are respectively arranged on two opposite outer sides of the hidden jaw, and the polarities of the opposite ends of the magnets are different.

Furthermore, groove holes for placing magnets are arranged on two outer sides of the hidden jaw.

Furthermore, the inner side of the clamping arm is provided with a U-shaped opening for fixing the elastic element.

The opener of the electromagnetic weft insertion weft gripper comprises a pair of electromagnetic assemblies, wherein the electromagnetic assemblies are symmetrically arranged at two sides of the opening direction of the hidden jaw, and the electromagnetic assemblies attract the magnet of the hidden jaw to open the hidden jaw in order to generate electromagnetic force after being electrified.

Further, the electromagnetism subassembly includes electromagnetic means, mounting groove, electromagnetic means fixed mounting be in the mounting groove, the mounting groove sets up at weft clamping device, electromagnetic means includes iron core, circular telegram coil winding is on the iron core, the iron core axis coincides with magnet horizontal center line.

Furthermore, the placing groove comprises a mounting hole and a wire guide hole, an electrified coil of the electromagnetic device penetrates through the wire guide hole and is connected with external electrified equipment, and the iron core penetrates through the mounting hole and is fixed.

The weft clamping method of the electromagnetic weft insertion gripper for realizing the third aim of the invention comprises the following steps:

(1) when the weft is to be delivered to the electromagnetic weft insertion weft gripper, the electrified coil of the opener of the weft gripper is connected with a power supply, the iron core attracts the magnet on the clamp of the weft gripper, the magnet drives the hidden jaw to open, and the elastic element between the two clamp arms is compressed;

(2) after the weft is fed into the electromagnetic weft insertion gripper, the power supply connected with the electrified coil is cut off;

(3) the elastic piece recovers the shape and extends, and the two magnets attract each other to drive the hidden jaw to close so as to clamp the weft yarn firmly.

Further, in the step (3), when the coil is powered off, the reverse electricity is applied.

After the technical scheme is adopted, the invention has the following advantages:

the invention adopts a non-contact weft clamping and handing-over method, when the weft flies to the place for clamping the weft, the electrified coil is electrified, the weft clamp is opened under the driving of electromagnetic force, the electrified coil is powered off after the weft reaches the weft clamp, the weft clamp is closed under the action of the elastic element, and the process of clamping the weft is rapidly completed by the attraction of the magnet, so that the weft insertion efficiency is more efficient, the service life of the weft clamp is prolonged, and the problems of weft insertion track deviation and the like caused by mechanical contact are avoided.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the electromagnetic weft insertion gripper and opener according to the present invention in use;

FIG. 2 is a schematic view of the electromagnetic weft insertion gripper clamp (without magnets mounted) of the present invention;

FIG. 3 is a schematic view of the mounting groove of the opener of the electromagnetic weft insertion gripper according to the present invention;

FIG. 4 is a flow chart of the weft insertion method of the electromagnetic weft insertion gripper of the present invention.

Wherein: 1-gripper clamp, 11-concealed jaw, 12-gripper arm, 13-elastic element, 14, 15-magnet, 16-groove hole, 17-U-shaped notch, 2-opener, 21-electromagnetic component, 211-electromagnetic device, 212-mounting groove, 2111-iron core, 2112-electrified coil, 2121-mounting hole and 2122-wire guide hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.

As shown in figure 1, the electromagnetic weft insertion weft gripper comprises a weft gripper shell and a weft gripper clamp 1, the weft gripper clamp 1 is arranged in the weft gripper shell, the weft gripper clamp 1 comprises a hidden jaw 11, a clamping arm 12 and an elastic element spring 13, a U-shaped notch 17 is arranged on the inner side of the clamping arm 12 and used for fixing the spring 13, the hidden jaw 11 comprises two magnets 14 and 15, two groove holes 16 are arranged on two outer sides of the hidden jaw 11, two magnets 15 are arranged in the groove holes 16, the polarities of the magnets 14 and the near ends of the magnets 15 are opposite, namely the polarity of the end, close to the magnet 15, of the magnet 14 is N (or S), the polarity of the end, close to the magnet 14, of the magnet 15 is S (or N), and the hidden jaw can be firmly closed under the action of the magnets when non-weft threads are connected.

The opener 2 of the electromagnetic weft insertion gripper is matched with the electromagnetic weft insertion gripper for use, and comprises a pair of electromagnetic assemblies 21 arranged on two sides of an electromagnetic weft insertion gripper, the electromagnetic assemblies are arranged on two sides of a hidden jaw 11 in the opening and closing direction, the electromagnetic assemblies are used for enabling the electromagnetic assemblies 21 which are opened and closed and are used for enabling the hidden jaw 11 to comprise electromagnetic devices 211 and a placing groove 212, the electromagnetic devices 211 are fixedly installed in the placing groove 212, each electromagnetic device 211 comprises an iron core 2111 and an energizing coil 2112, the energizing coil 2112 is wound on the iron core 2111, the axial line of the iron core 2111 is coincided with the central lines of magnets 14 and 15, the placing groove 212 comprises an installation hole 2121 and a wire guide hole 2122, the energizing coil 2112 of the electromagnetic device 211 penetrates through the wire guide hole 2122 to be connected with external energizing equipment, and the iron.

The weft clamping method of the electromagnetic weft insertion weft gripper comprises the following steps:

(1) when the weft is delivered to the concealed jaw 11 of the electromagnetic weft insertion gripper by a weft delivery device of the electromagnetic weft insertion loom, a power supply coil 2112 in the electromagnetic device 211 is powered on, magnets 14 and 15 of the concealed jaw 11 are attracted through an iron core 2111, the magnets 14 and 15 drive the concealed jaw 11 to open, and meanwhile, a spring 13 between two clamping arms 12 is compressed;

(2) when the weft is fed into the blind jaw 11, the power supply connected to the energizing coil 2112 is cut off;

(3) the spring 13 restores the deformation and extends, the magnets 14 and 15 of the hidden jaw 11 attract each other, finally the hidden jaw 11 is driven to close, and the weft clamp 1 clamps the weft yarn firmly.

In the step (3), when the coil is powered off, reverse electricity can be applied, so that the closing speed of the jaw is higher.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.