CN216074141U

CN216074141U - Electromagnetic type tail yarn remaining device

Info

Publication number: CN216074141U
Application number: CN202122123423.0U
Authority: CN
Inventors: 张焕军; 杨华年; 张明; 聂俭; 张丕华; 王军
Original assignee: YICHANG JINGWEI TEXTILE MACHINERY CO Ltd; Jingwei Textile Machinery Co Ltd
Current assignee: YICHANG JINGWEI TEXTILE MACHINERY CO Ltd; Jingwei Textile Machinery Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-03-18
Anticipated expiration: 2031-09-03

Abstract

The utility model provides an electromagnetic type tail yarn remaining device, which comprises a winding drum driving roller and a reciprocating yarn guide device, wherein the tail yarn remaining section close to the end head of a yarn winding drum at the upstream of the reciprocating yarn guide device is provided with the tail yarn remaining device, the tail yarn remaining device is provided with a lifting stop lever, the lifting stop lever is higher than a common tangent line between a yarn guide plate and the winding drum driving roller when being lifted so as to stop yarns to prevent the yarns from moving transversely, and the lifting stop lever is lower than the common tangent line between the yarn guide plate and the winding drum driving roller when being lowered so as to release the yarns. When the yarn cutting machine is used, the time parameter of the tail yarn is set through calculation, the time of the tail yarn is over, the lifting stop lever descends, and the transverse position of the yarn is opened; the operation of automatically adjusting the length of the tail yarn of the yarn is realized. The utility model provides an electromagnetic type tailing yarn remaining device and a control method, which can conveniently realize automatic tailing yarn remaining operation, and can freely set the length of the tailing yarn according to yarn varieties and customer requirements by setting the lifting time.

Description

Electromagnetic type tail yarn remaining device

Technical Field

The utility model relates to the field of twisting machines, in particular to an electromagnetic type tail yarn remaining device.

Background

Tail yarn is the operation of winding the waste thread section without twisting directly on the end of the yarn drum when the yarn is wound on the yarn drum, so that the subsequent user can distinguish where the yarn with qualified twisting starts, and the quality of the final finished product is ensured. Chinese patent 201922199294.6 describes an automatic yarn tailing device, which realizes the function of automatic yarn tailing by clamping the yarn in a thread groove and taking the yarn from the bottom to the top by the spiral motion of a thread sleeve. In the method, the size of the volume of the thread sleeve is influenced by the amount of the tail yarn, the design has space limitation, and only the tail yarn with fixed length can be collected. CN 204023045U describes a two-for-one twister with a tail yarn retaining device, which is provided with a structure of a limiting column for retaining tail yarn, but needs to manually operate a rotating sleeve to release yarn, occupies a lot of manual operation time, and is not suitable for large-scale automated workshops.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electromagnetic type tailing yarn retaining device, which can realize automatic tailing yarn retaining operation, reduce time occupation of operators and improve efficiency, the length of the tailing yarn can be adjusted according to needs, and a control method is simpler.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: an electromagnetic type tail yarn remaining device is characterized in that a tail yarn remaining device is arranged on the upstream of a reciprocating yarn guide device and close to a tail yarn remaining section at the end of a yarn winding drum, the tail yarn remaining device is provided with a lifting stop lever, the lifting stop lever is higher than a common tangent line between a yarn guide plate and a drum driving roller when being lifted so as to stop yarns to enable the yarns not to move transversely, and the lifting stop lever is lower than the common tangent line between the yarn guide plate and the drum driving roller when being lowered so as to release the yarns;

the structure of the tail yarn retaining device is as follows: the armature of the electromagnet is connected with a lifting stop lever, a spring for lifting the lifting stop lever is arranged on the lifting stop lever, and the electromagnet is fixedly connected with the mounting seat.

In the preferred scheme, the mounting seat is fixedly connected with the yarn guide plate, the yarn guide plate is fixedly connected with the safety cover plate, and the safety cover plate is provided with a notch for the lifting stop lever to pass through.

In a preferred scheme, the reciprocating yarn guide device has the structure that: the yarn guide head combining piece is fixedly connected with the transverse guide rod, the servo motor drives the transverse guide rod to reciprocate, a yarn guide head is arranged at the end of the yarn guide head combining piece, a groove is formed in the middle of the yarn guide head, and smooth curved surfaces are arranged on two sides of the yarn guide head so that a yarn can slide into the groove along the curved surfaces.

In the preferred scheme, an overfeed device is further arranged at the upstream of the tail yarn retaining device, and a guide wheel is arranged between the overfeed device and the tail yarn retaining device.

In the preferred scheme, the electric wire of the electromagnet is connected with a starting button of the overfeeding device in series;

and a time delay relay is arranged on the series circuit.

and a switching element is arranged on the series circuit, the switching element is a normally closed switching element, the switching element is disconnected after being electrified, and the switching element is electrically connected with an adjustable delay output port in the PLC.

The utility model provides an electromagnetic type tailing yarn device, which can conveniently realize automatic tailing yarn remaining operation by adopting a lifting tailing yarn device, can freely set the length of the tailing yarn according to yarn varieties and customer requirements by setting the lifting time, greatly reduces the operation difficulty, reduces the operation time of an operator, and enables the operator to take care of more equipment. The control method of the utility model is also simple and convenient and is convenient to implement.

Drawings

The following further description is made in conjunction with the accompanying drawings and examples.

FIG. 1 is a schematic view of a tail yarn retaining device of the present invention.

Fig. 2 is a schematic side view of the overall structural arrangement of the present invention.

FIG. 3 is a schematic front view of a tail yarn of the present invention.

Fig. 4 is a schematic front view of the present invention in normal twist winding.

FIG. 5 is another schematic structural diagram of the tail yarn retaining device of the present invention.

In the figure: guide pulley 1, yarn 2, overfeed device 3, tail yarn remaining device 4, lifting stop lever 41, spring 42, mounting seat 43, electric wire 44, electromagnet 45, air cylinder 46, air inlet pipe 47, yarn reel 5, reel driving roller 6, traversing guide rod 7, safety cover plate 8, yarn guide plate 9, outer guard plate 10, yarn guide head joint part 11, yarn guide head 12 and tail yarn remaining section B.

Detailed Description

Example 1:

as shown in fig. 2 to 4, an electromagnetic type tailing yarn retaining device comprises a drum driving roller 6 and a reciprocating yarn guiding device, a tailing yarn retaining device 4 is arranged on the upstream of the reciprocating yarn guiding device and close to a tailing yarn retaining section B at the end of a yarn drum 5, the tailing yarn retaining device 4 is provided with a lifting stop lever 41 capable of lifting, the lifting stop lever 41 is higher than a common tangent line between a yarn guide plate 9 and the drum driving roller 6 when being lifted so as to stop a yarn 2 from moving transversely, and the lifting stop lever 41 is lower than the common tangent line between the yarn guide plate 9 and the drum driving roller 6 when being lowered so as to release the yarn 2. With the structure, the tail yarn retaining device 4 is used for retaining the yarn 2 after being started to perform tail yarn retaining operation, and releasing the yarn 2 after completion.

In a preferred scheme as shown in fig. 1, the structure of the tail yarn retaining device 4 is as follows: the armature of the electromagnet 45 is connected to the up-down lever 41, the up-down lever 41 is provided with a spring 42 for raising the up-down lever 41, and the electromagnet 45 is fixedly connected to the mounting base 43. With this configuration, the armature is lowered by energization of the electromagnet 45, the up-down stopper 41 is lowered accordingly, and the up-down stopper 41 is raised by the spring 42 after the electromagnet 45 is deenergized.

Another alternative is shown in fig. 5, in which the structure of the tail yarn retaining device 4 is as follows: a piston rod of the cylinder 46 is connected to the up-down lever 41, a spring 42 for raising the up-down lever 41 is provided on the up-down lever 41, and the cylinder 46 is fixedly connected to the mounting base 43. An air inlet pipe 47 is connected to the top of the air cylinder 46, when the electromagnetic valve of the air cylinder 46 is powered on, the air inlet pipe 47 is conducted, the piston rod of the air cylinder 46 is lowered, and when the electromagnetic valve is powered off, the lifting gear rod 41 is lifted under the action of the spring 42.

In a preferred scheme, as shown in fig. 2, the mounting seat 43 is fixedly connected with the yarn guide plate 9, the yarn guide plate 9 is fixedly connected with the safety cover plate 8, and the safety cover plate 8 is provided with a notch for the lifting stop rod 41 to pass through.

The preferable scheme is as shown in figures 2-4, the structure of the reciprocating yarn guide device is as follows: the yarn guide head combining piece 11 is fixedly connected with the traverse guide rod 7 so as to drive the traverse guide rod 7 to reciprocate through the cam component by the servo motor, the end of the yarn guide head combining piece 11 is provided with the yarn guide head 12, the middle of the yarn guide head 12 is provided with a groove, and two sides of the yarn guide head 12 are provided with smooth curved surfaces so that the yarn 2 can slide into the groove along the curved surfaces. With this structure, it is convenient to catch the yarn 2 and guide the yarn 2 to reciprocate.

In a preferred scheme, as shown in figures 3 and 4, an overfeed device 3 is arranged at the upstream of a tail yarn retaining device 4, and a guide wheel 1 is arranged between the overfeed device 3 and the tail yarn retaining device 4. The yarn 2 output by the overfeed device 3 bypasses the guide wheel 1 and then is conveyed to a tail yarn retaining device 4 or a reciprocating yarn guide device.

In a preferred scheme, the electric wire 44 of the electromagnet 45 is connected with the starting button of the overfeeding device 3 in series;

and a time delay relay is arranged on the series circuit. With this structure, the start of the twisting spinning process at the overfeed device 3 is facilitated.

In the preferred embodiment, the solenoid valve of the cylinder 46 is connected in series with the start button of the overfeed device 3, and a time delay relay is provided in the series circuit. With this structure, the start of the twisting spinning process at the overfeed device 3 is facilitated. The delay relay can also be a delay relay arranged in the PLC or a module with the same function. For example, a switching element is arranged on the series circuit, the switching element is a normally closed switching element, the switching element is disconnected after being electrified, and the switching element is electrically connected with an adjustable delay output port in the PLC.

Example 2:

a control method adopting the electromagnetic type tail yarn remaining device comprises the following steps:

s1, overfeeding parameters of the yarns 2 are set, and time parameters of the tailing yarns, namely the time of blocking the yarns 2 by the lifting stop lever 41, are set through calculation; the time for the tail yarn in this example is set to 7s, which determines how much yarn 2 is wound around the tail yarn section B. It is related to the number of windings of the yarn 2 on the overfeed device 3, the overfeed ratio of the yarn 2, and the take-up speed of the drum drive roller 6.

S2, hanging the yarn 2 on one side of the lifting stop lever 41 close to the end of the yarn winding drum 5;

s3, winding the tail yarn to the end of the yarn winding drum 5, and pressing a start button of the overfeed device 3;

s4, when the yarn 2 is wound with the tail yarn, the lifting stop lever 41 descends to leave the transverse position of the yarn 2 until the set time for leaving the tail yarn is over; the up-down lever 41 is lowered by an electromagnet 45 or an air cylinder 46.

S5, capturing the yarn 2 by the yarn guide head 12 of the reciprocating yarn guide device, operating the overfeed device 3 according to the set overfeed ratio parameter, and enabling the equipment to enter a normal twisting and winding operation state;

in a preferred scheme, the lifting stop lever 41 is descended for a period of time, and after releasing the yarn 2, the lifting stop lever rebounds to extend after power failure. The releasing time is preferably 2s, namely the lifting stop lever 41 is electrically disconnected and rebounded to extend after being lowered for 2 s. The power failure here means that the electromagnet 45 loses attraction force due to the power failure, and the lifting stop lever 41 rebounds under the action of the spring 42. Or the electromagnetic valve is powered off and reset, the air inlet pipe 47 is communicated with the atmosphere, and the lifting stop lever 41 rebounds under the action of the spring 42.

Through the steps, the operation of automatically adjusting the length of the tail yarn of the yarn can be realized.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.

Claims

1. The utility model provides an electromagnetic type stays tail yarn device which characterized by: a tail yarn retaining device (4) is arranged on a tail yarn retaining section (B) close to the end of a yarn winding drum (5) at the upstream of the reciprocating yarn guiding device, the tail yarn retaining device (4) is provided with a lifting stop lever (41), the lifting stop lever (41) is higher than a common tangent line between a yarn guide plate (9) and a drum driving roller (6) when being lifted so as to stop the yarn (2) from moving transversely, and the lifting stop lever (41) is lower than the common tangent line between the yarn guide plate (9) and the drum driving roller (6) when being lowered so as to release the yarn (2);

the structure of the tail yarn retaining device (4) is as follows: the armature of the electromagnet (45) is connected with the lifting stop lever (41), a spring (42) which enables the lifting stop lever (41) to lift is arranged on the lifting stop lever (41), and the electromagnet (45) is fixedly connected with the mounting seat (43).

2. The electromagnetic tail yarn retention device as claimed in claim 1, wherein: the installation seat (43) is fixedly connected with the yarn guide plate (9), the yarn guide plate (9) is fixedly connected with the safety cover plate (8), and a notch for the lifting stop lever (41) to pass through is arranged on the safety cover plate (8).

3. The electromagnetic type tail yarn retaining device as claimed in claim 2, characterized in that: the reciprocating yarn guide device is characterized in that: the yarn guide head combining piece (11) is fixedly connected with the transverse guide rod (7), the servo motor drives the transverse guide rod (7) to reciprocate, a yarn guide head (12) is arranged at the end of the yarn guide head combining piece (11), a groove is formed in the middle of the yarn guide head (12), and smooth curved surfaces are arranged on two sides of the yarn guide head (12) so that yarns (2) can slide into the groove along the curved surfaces.

4. An electromagnetic tail yarn retention device as in claim 3, wherein: an overfeeding device (3) is arranged at the upstream of the tail yarn reserving device (4), and a guide wheel (1) is arranged between the overfeeding device (3) and the tail yarn reserving device (4).

5. The electromagnetic tail yarn retention device as claimed in claim 4, wherein: the electric wire (44) of the electromagnet (45) is connected with the start button of the overfeed device (3) in series;

and a time delay relay is arranged on the series circuit.

6. The electromagnetic tail yarn retention device as claimed in claim 4, wherein: the electric wire (44) of the electromagnet (45) is connected with the start button of the overfeed device (3) in series;