CN213538287U

CN213538287U - Automatic weft-picking device

Info

Publication number: CN213538287U
Application number: CN202022361809.0U
Authority: CN
Inventors: 殷和亮; 张争取; 马景现; 李振亚
Original assignee: Shandong Rifa Textile Machinery Co Ltd
Current assignee: Shandong Rifa Textile Machinery Co Ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-06-25
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses an automatic weft-picking device, which comprises a swing arm seat, wherein a weft yarn grabbing mechanism and a weft yarn traction and yarn-dividing mechanism are arranged on the swing arm seat, and a weft yarn shearing mechanism is embedded in the weft yarn traction and yarn-dividing mechanism; the weft yarn grabbing mechanism comprises a yarn pressing ring and a yarn hooking rod, one end of the yarn pressing ring is fixedly connected to the swing arm seat, the other end of the yarn pressing ring is of an annular structure, and the annular structure is used for pressing yarns; the yarn dividing mechanism is drawn and is included traction wheel and driving motor, the one end fixed connection that colludes the yarn pole is in on the traction wheel, driving motor fixed connection be in on the swing arm seat, the traction wheel rotates to be connected on the swing arm seat, driving motor's power take off end with the axle head of traction wheel is connected. The utility model provides an automatic take out latitude device, weft snatch more reliably, and the error rate is low, and the drive is laborsaving, and is with low costs.

Description

Automatic weft-picking device

Technical Field

The utility model relates to a weaving equipment technical field, in particular to automatic take out latitude device.

Background

Weft stop is one of the important factors that limit loom efficiency and affect labor cost when the loom is in normal operation.

When the loom weft stops, the weft needs to be drawn out, which is time-consuming and labor-consuming. In the prior art, a weft drawing device of an air jet loom is generally a pneumatic weft drawing device, is limited by an air source, is incompletely removed by drawing yarns by an air belt, and has high error rate and high cost.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an automatic take out latitude device, weft snatchs more reliably, and the error rate is low, and the drive is laborsaving, and is with low costs.

In order to achieve the above object, the utility model provides a following technical scheme:

an automatic weft pulling device comprises a swing arm seat, wherein a weft yarn grabbing mechanism and a weft yarn traction and yarn dividing mechanism are arranged on the swing arm seat, and a weft yarn shearing mechanism is embedded in the weft yarn traction and yarn dividing mechanism; the weft yarn grabbing mechanism comprises a yarn pressing ring and a yarn hooking rod, one end of the yarn pressing ring is fixedly connected to the swing arm seat, the other end of the yarn pressing ring is of an annular structure, and the annular structure is used for pressing yarns; the yarn dividing mechanism is drawn and is included traction wheel and driving motor, the one end fixed connection that colludes the yarn pole is in on the traction wheel, driving motor fixed connection be in on the swing arm seat, the traction wheel rotates to be connected on the swing arm seat, driving motor's power take off end with the axle head of traction wheel is connected.

Optionally, a wire dividing groove arranged along the circumferential direction is formed in the traction wheel, the wire dividing groove comprises a first wire dividing groove and a second wire dividing groove which are arranged in parallel along the circumferential direction, and a wire dividing block is arranged between the first wire dividing groove and the second wire dividing groove.

Optionally, one end of the yarn hooking rod is fixedly connected between the first yarn dividing groove and the second yarn dividing groove.

Optionally, the yarn waste collecting device further comprises a waste yarn collecting mechanism connected to the swing arm seat, wherein the waste yarn collecting mechanism comprises a yarn sucking port, and the yarn sucking port is communicated with the air pump through a negative pressure chamber; the yarn sucking port is arranged above the yarn dividing groove.

Optionally, the yarn sucking port comprises a first yarn sucking port and a second yarn sucking port, the first yarn sucking port is arranged above the first yarn dividing groove, and the second yarn sucking port is arranged above the second yarn dividing groove.

Optionally, the weft shearing mechanism comprises a shearing driving mechanism, the shearing driving mechanism is arranged in a cavity in the traction wheel, a blade placing groove is formed in the traction wheel, a yarn shearing blade is arranged in the blade placing groove, and the yarn shearing blade is used for shearing yarns wound in the yarn dividing groove of the traction wheel; the blade placing groove is vertically communicated with the wire distributing groove.

Optionally, cut actuating mechanism and establish including the slip cover the epaxial electro-magnet of pivot of traction wheel, the one end of electro-magnet is provided with return spring, return spring's one end fixed connection be in on the terminal surface of the cavity in the traction wheel, other end fixed connection be in the one end of electro-magnet, the other end and the iron structure spare interval of electro-magnet correspond the setting.

Optionally, the yarn cutting blade comprises a movable blade and a fixed blade, the fixed blade is fixedly connected to the traction wheel, and a cutting edge of the fixed blade is arranged in the yarn dividing groove; one end of the movable blade arranged in the blade placing groove is fixedly connected to the electromagnet, the other end of the movable blade is suspended, and the cutting edge of the movable blade is also arranged in the wire dividing groove; the movable blade and the fixed blade are arranged adjacently and in parallel.

Optionally, one end of the traction wheel, which is far away from the driving motor, is fixedly connected with a blade guide blade, one end of the blade guide blade is fixedly connected to the traction wheel, and the other end of the blade guide blade is bent and suspended above the wire dividing groove and is used for limiting the non-connecting end of the movable blade.

Optionally, a set gap for the yarn hooking rod to pass through is arranged between the first yarn sucking port and the second yarn sucking port, supporting rods are uniformly distributed in the yarn dividing groove along the circumferential direction, and the supporting rods are used for supporting yarns in the yarn dividing groove

According to the technical scheme, the utility model provides an automatic take out latitude device adopts driving motor drive traction wheel, colludes the weft yarn through the yarn pole of colluding of connecting on traction wheel for the weft yarn winding is on traction wheel, accomplishes the weft yarn through adopting fixed pressure yarn ring and pivoted to collude the yarn pole and snatchs, compares in the pneumatic structure of snatching among the prior art, and the structure is simpler, snatchs more reliably, and the fault rate is low. The weft yarn traction and yarn distribution mechanism drives the traction wheel by using the driving motor, has stable and reliable transmission, can realize high-speed operation, saves labor in driving and has low cost.

Drawings

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

Fig. 1 is a schematic perspective view of an automatic weft insertion device according to an embodiment of the present invention;

fig. 2 is a schematic view of an angle mounting structure of the automatic weft insertion device according to an embodiment of the present invention;

fig. 3 is a schematic structural view of another angle of the automatic weft insertion device according to the embodiment of the present invention;

FIG. 4 is a schematic view of the yarn splitter of FIG. 3 after winding thereon;

fig. 5 is a schematic axial sectional view of an automatic weft insertion device according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a traction wheel according to an embodiment of the present invention;

fig. 7 is a schematic view of an angle structure of a traction wheel according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an angle of the yarn suction port according to the embodiment of the present invention;

fig. 9 is a schematic perspective view of a yarn suction port provided in an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a fixed blade according to an embodiment of the present invention;

fig. 11 is a schematic structural view of the moving blade provided by the embodiment of the present invention.

Detailed Description

The utility model discloses an automatic take out latitude device, weft snatch more reliably, and the error rate is low, and the drive is laborsaving, and is with low costs.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 11, the present invention provides an automatic weft pulling device, which includes a swing arm seat 12, wherein a weft grabbing mechanism and a weft pulling and dividing mechanism are disposed on the swing arm seat 12, and a weft shearing mechanism is embedded in the weft pulling and dividing mechanism.

Wherein, the weft yarn grabbing mechanism comprises a yarn pressing ring 5 and a yarn hooking rod 4. One end of the yarn pressing ring 5 is rod-shaped, the end is fixedly connected to the swing arm seat 12, and the other end is of an annular structure which is used for pressing yarns. The swing arm base 12 is rotatably connected to the frame 11. The traction yarn dividing mechanism comprises a traction wheel 2 and a driving motor 1, one end of a yarn hooking rod 4 is fixedly connected to the traction wheel 2, the driving motor 1 is fixedly connected to a swing arm seat 12, and the traction wheel 2 is rotatably connected to the swing arm seat 12. The power output end of the driving motor 1 is connected with one shaft end of a rotating shaft 13 of the traction wheel 2. When driving motor 1 rotates, give pivot 13 with power transmission, pivot 13 rotates and drives traction wheel 2, and traction wheel 2 rotates and drives and collude yarn pole 4 and rotate, colludes yarn pole 4 and rotates the line ball end department that presses yarn ring 5, colludes yarn pole 4 and continues to rotate, colludes the winding with weft yarn festival ring on traction wheel 2. The weft cutting mechanism is used for cutting off weft yarns on the traction wheel 2, so that the weft yarns can be drawn out when the loom stops weft. The end of the yarn pressing ring 5 is connected to the swing arm seat 12 through a transfer block 10.

The utility model discloses an automatic take out latitude device adopts driving motor 1 drive traction wheel 2, colludes the weft yarn through linking on traction wheel 2 colluding yarn pole 4 for the weft yarn winding is on traction wheel 2, colludes yarn pole 4 through adopting fixed pressure yarn ring 5 and pivoted and accomplishes the weft yarn and snatch, compares in the pneumatic structure of snatching among the prior art, and the structure is simpler, snatchs more reliably, and the fault rate is low. The weft yarn traction and yarn separation mechanism drives the traction wheel 2 by using the driving motor 1, has stable and reliable transmission, can realize high-speed operation, saves labor in driving and has low cost.

In a specific embodiment, the traction wheel 2 is provided with a branching groove 20 arranged along the circumferential direction, the branching groove 20 comprises a first branching groove and a second branching groove arranged in parallel along the circumferential direction, a branching block 6 is arranged between the first branching groove and the second branching groove, and the branching block 6 is used for separating weft yarns wound in the branching groove 20 into the first branching groove and the second branching groove. It will be appreciated that in order to facilitate branching, the end of the branching block 6 remote from the centre of the wheel 2 is of a pointed configuration, as shown in figure 1.

In order to facilitate the winding of the yarn hooked by the yarn hooking rod 4 in the yarn dividing groove 20, the yarn hooking rod 4 is arranged in the yarn dividing groove 20. In order to avoid the yarn hooking rod 4 from influencing the yarn dividing of the yarn dividing block 6, the end part of the yarn hooking rod 4 connected to the yarn dividing groove 20 is fixedly connected between the first yarn dividing groove and the second yarn dividing groove, namely the yarn hooking rod 4 and the yarn dividing block 6 are located on the same circumferential arc surface of the yarn dividing groove 20, and the circumferential arc surface is perpendicular to the axis of the traction wheel 2.

In order to retrieve the yarn that cuts, the utility model discloses an automatic weft-picking device still includes waste yarn and collects the mechanism, waste yarn is collected the mechanism and is connected on swing arm seat 12. The waste yarn collecting mechanism comprises a yarn sucking port 9, and the yarn sucking port 9 is communicated with the air pump through the negative pressure chamber. The yarn suction port 9 is arranged above the yarn dividing groove 20 and is used for sucking and discharging yarns cut off from the yarn dividing groove 20.

In a specific embodiment, the yarn suction ports 9 comprise a first yarn suction port 91 and a second yarn suction port 92, the first yarn suction port 91 is arranged above the first branch groove, and the second yarn suction port 92 is arranged above the second branch groove. In a specific embodiment, the first yarn suction port 91 and the second yarn suction port 92 are arc-shaped ports, and the arc-shaped ports are enveloped above the positions of the corresponding distributing grooves.

Furthermore, the weft shearing mechanism comprises a shearing driving mechanism, the shearing driving mechanism is arranged in a cavity in the traction wheel 2, the open end of the cavity is arranged at one end, far away from the driving motor 1, of the traction wheel 2, and the open end of the cavity is sealed through an end cover 7. A blade placing groove 16 is formed in the traction wheel 2, and a yarn cutting blade is arranged in the blade placing groove 16 and used for cutting yarns wound in a yarn dividing groove 20 of the traction wheel 2; the blade placing groove 16 is vertically communicated with the distributing groove 20, and the blade placing groove 16 is arranged to penetrate through the side surface of the traction wheel 2.

In a specific embodiment, the shearing driving mechanism comprises an electromagnet 17 slidably sleeved on the rotating shaft 13 of the traction wheel 2, one end of the electromagnet 17 is provided with a return spring 19, one end of the return spring 19 is fixedly connected to one end surface of the cavity in the traction wheel 2, and the other end of the return spring is fixedly connected to one end of the electromagnet 17. The other end of the electromagnet 17 is arranged in a corresponding spaced relation to a ferrous structural member 18, which is not connected to the latter. The ferrous structural member 18 is an iron sheet or block. The return spring 19 and the iron structural member 18 are respectively provided at both ends of the electromagnet 17. When the electromagnet 17 is in a power-on state, the electromagnet 17 is attracted together with the iron sheet or the iron block, when the electromagnet 17 is in a power-off state, attraction force does not exist between the electromagnet 17 and the iron sheet or the iron block, and under the action of the return force of the return spring 19 at the other end, the electromagnet 17 moves to one end far away from the iron sheet or the iron block to return. It will be appreciated that the return spring 19 is in a natural state when the electromagnet 17 is not energized, and the return spring 19 is in a stretched state when the electromagnet 17 is energized.

Wherein, for the purpose of cutting yarn, the yarn cutting blade comprises a movable blade 15 and a fixed blade 14. The fixed blade 14 is fixedly connected to the traction wheel 2. Both ends of the fixed blade 14 are connected to the traction wheel 2, and the two connecting positions respectively span the blade placing grooves 16 on both sides of the line dividing groove 20. Specifically, the cutting edge of the stationary blade 14 is disposed within the parting line groove 20. The blade edge of the movable blade 15 is also arranged in the branching groove 20, and the blade edge of the fixed blade 14 is arranged corresponding to the blade edge of the movable blade 15. In the natural state (non-operating state), the blade edge of the blade 14 and the blade edge of the movable blade 15 are arranged at positions corresponding to each other as shown in fig. 3.

In order to drive the movable blade 15 to realize the shearing motion, one end of the movable blade 15, which is arranged at the left side of the blade placing groove 16, is fixedly connected to the electromagnet 17, and the other end is suspended. The fixed connecting end and the suspension end of the movable blade 15 are respectively arranged at two sides of the branching slot 20. The cutting edge of the movable blade 15 is also arranged in the distributing groove 20. The movable blade 15 and the fixed blade 14 are disposed adjacently and in parallel. After the electromagnet 17 is electrified, the movable blade 15 is driven to slide in the blade placing groove 16, and the cutting with the fixed blade 14 is realized.

In order to guide the movable blade 15 in the shearing motion and prevent the suspended end of the movable blade 15 from rotating in the shearing motion, one end of the traction wheel 2 far away from the driving motor 1 is fixedly connected with the blade guide blade 8. One end of the blade guide blade 8 is fixedly connected to the end cover 7 at the end part of the traction wheel 2, and the other end of the blade guide blade is bent and suspended above the wire dividing groove 20 and used for limiting the non-connecting end of the movable blade 15.

In order to prevent the yarn suction port 9 from affecting the rotation of the yarn hooking rod 4, a set gap 93 for the yarn hooking rod 4 to pass through is provided between the housings of the first yarn suction port 91 and the second yarn suction port 92. The width of the set gap 93 is not less than the diameter of the yarn hooking rod 4, and the height of the set gap 93 is greater than the height of the yarn hooking rod 4. In order to enable the yarns wound at the wheel shaft position of the traction wheel 2 to be easily cut, supporting rods 3 are uniformly distributed in the branching groove 20 along the circumferential direction, and the supporting rods 3 are used for supporting the yarns in the branching groove 20.

Specifically, as shown in fig. 10 and 11, the cutting edge of the fixed blade 14 and the cutting edge of the movable blade 15 both include two groove-shaped cutting edges, and the groove-shaped cutting edges of the fixed blade 14 and the movable blade 15 are correspondingly arranged, that is, the size, structure and position of the groove-shaped cutting edges of the fixed blade and the movable blade correspond to each other. The groove-shaped cutting edge comprises a first groove edge and a second groove edge, the first groove edge is arranged in the first dividing groove, and the second groove edge is arranged in the second dividing groove.

When the loom stops due to weft yarn failure, the swing arm seat 12 swings the automatic weft-picking device to a weft yarn grabbing position. The swinging can be manually operated, or the controller can be pushed by a power mechanism, and the power mechanism can be an air cylinder or a motor. The yarn pressing ring 5 holds the yarn in a certain range, the driving motor 1 drives the traction wheel 2 to rotate, the yarn hooking rod 4 is driven to rotate together, the yarn hooking rod 4 rotates to the yarn holding position of the yarn pressing ring 5, the yarn hooking rod 4 rotates, the weft yarn section rings are wound, and the weft yarn is wound in the yarn distributing groove 20 of the traction wheel 2. The weft yarn is divided into two weft yarn loops under the action of the yarn dividing block 6, and when the traction wheel 2 rotates to a set number of turns, the driving motor 1 stops working. At this time, the electromagnet 17 is powered on, under the attraction action of magnetic force, the electromagnet 17 slides towards the iron structural member 18, so that the movable blade 15 is driven to move along the blade placing groove 16 of the traction wheel 2, the cutting edge of the movable blade 15 and the cutting edge of the fixed blade 14 are staggered left and right, two weft coils are cut off, and under the action of negative pressure, the first yarn suction port 91 and the second yarn suction port 92 pump the cut weft into the waste yarn barrel. And after the yarn drawing is finished, restarting the loom to start normal work.

In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic weft pulling device comprises a swing arm seat and is characterized in that a weft yarn grabbing mechanism and a weft yarn traction and yarn dividing mechanism are arranged on the swing arm seat, and a weft yarn shearing mechanism is embedded in the weft yarn traction and yarn dividing mechanism;

the weft yarn grabbing mechanism comprises a yarn pressing ring and a yarn hooking rod, one end of the yarn pressing ring is fixedly connected to the swing arm seat, the other end of the yarn pressing ring is of an annular structure, and the annular structure is used for pressing yarns; the yarn dividing mechanism is drawn and is included traction wheel and driving motor, the one end fixed connection that colludes the yarn pole is in on the traction wheel, driving motor fixed connection be in on the swing arm seat, the traction wheel rotates to be connected on the swing arm seat, driving motor's power take off end with the axle head of traction wheel is connected.

2. The automatic drawing-in device according to claim 1, characterized in that the traction wheel is provided with wire dividing grooves arranged along the circumferential direction, the wire dividing grooves comprise a first wire dividing groove and a second wire dividing groove which are arranged in parallel along the circumferential direction, and a wire dividing block is arranged between the first wire dividing groove and the second wire dividing groove.

3. The automatic weft extractor according to claim 2, characterized in that one end of the yarn hooking rod is fixedly connected between the first and second yarn dividing grooves.

4. The automatic weft pulling device according to claim 2, further comprising a waste yarn collecting mechanism connected to the swing arm base, the waste yarn collecting mechanism including a yarn suction port communicating with an air pump through a negative pressure chamber; the yarn sucking port is arranged above the yarn dividing groove.

5. The automatic weft pulling device according to claim 4, characterized in that the yarn suction ports comprise a first yarn suction port and a second yarn suction port, the first yarn suction port being disposed above the first yarn dividing groove, the second yarn suction port being disposed above the second yarn dividing groove.

6. The automatic weft pulling device according to claim 1, characterized in that the weft cutting mechanism comprises a cutting driving mechanism, the cutting driving mechanism is arranged in a cavity in the traction wheel, a blade placing groove is arranged on the traction wheel, a yarn cutting blade is arranged in the blade placing groove, and the yarn cutting blade is used for cutting yarns wound in the thread dividing groove of the traction wheel; the blade placing groove is vertically communicated with the wire distributing groove.

7. The automatic weft pulling device according to claim 6, wherein the shearing driving mechanism comprises an electromagnet slidably sleeved on a rotating shaft of the traction wheel, one end of the electromagnet is provided with a return spring, one end of the return spring is fixedly connected to one end surface of the cavity in the traction wheel, the other end of the return spring is fixedly connected to one end of the electromagnet, and the other end of the electromagnet is arranged in a spaced corresponding manner with an iron structural member.

8. The automatic weft pulling device according to claim 7, characterized in that the yarn cutting blade comprises a movable blade and a fixed blade, the fixed blade is fixedly connected to the traction wheel, and the cutting edge of the fixed blade is arranged in the yarn dividing groove; one end of the movable blade arranged in the blade placing groove is fixedly connected to the electromagnet, the other end of the movable blade is suspended, and the cutting edge of the movable blade is also arranged in the wire dividing groove; the movable blade and the fixed blade are arranged adjacently and in parallel.

9. The automatic weft pulling device according to claim 8, wherein one end of the traction wheel far away from the driving motor is fixedly connected with a blade guide piece, one end of the blade guide piece is fixedly connected to the traction wheel, and the other end of the blade guide piece is bent and suspended above the thread dividing groove and used for limiting a non-connecting end of the movable blade.

10. The automatic drawing-in device according to claim 5, characterized in that a set gap for the yarn hooking rod to pass through is arranged between the first yarn suction port and the second yarn suction port, support rods are evenly distributed in the yarn dividing groove along the circumferential direction, and the support rods are used for supporting yarns in the yarn dividing groove.