Yarn feeding device of warp knitting machine

Abstract

The yarn feeding device of the warp knitting machine comprises a bottom plate, an elastic yarn feeding mechanism and an infrared monitoring mechanism, the elastic yarn feeding mechanism comprises a plurality of elastic pieces and yarn feeding rings, the elastic pieces are linearly distributed on the bottom plate at equal intervals, and the yarn feeding rings are installed on the surfaces of the ends, away from the bottom plate, of the elastic pieces; yarn penetrates through the yarn feeding ring, separation and traction of the yarn are achieved through the yarn feeding ring, the yarn feeding ring is of an annular structure, the outer wall of the yarn feeding ring is smooth, the yarn is not prone to being rubbed off, automatic tensioning adjustment in the yarn conveying process can be achieved in cooperation with the elastic piece, the end of the elastic piece on the bottom plate is in a bent state in the yarn feeding process, and the yarn feeding efficiency is improved. When the yarn is broken, the elastic piece rebounds rapidly and enters the monitoring area of the infrared transmitter and the infrared receiver, the infrared receiver is prevented from receiving signals of the infrared transmitter, the signals are sent to the single-chip microcomputer, the single-chip microcomputer drives the alarm to sound, and broken yarn warning is achieved.

Description

Technical Field

[0001] The utility model relates to the field of yarn feeding equipment for warp knitting machines, in particular to a yarn feeding device for warp knitting machines. Background Art

[0002] Warping machines are mainly divided into two categories: batch warping machines and strip warping machines. Existing warping machines are generally equipped with yarn feeding mechanisms to separate the yarns for transportation. However, the existing yarn feeding mechanisms mostly use yarn splitting needles when in use. The yarn splitting needles are usually flat rectangular plates with wire holes. This method causes the yarn to be in the same position in the wire hole for a long time for yarn separation. The friction will increase, resulting in yarn bursting. Once this happens, the drive motor must be turned off immediately and the yarn must be replaced to ensure that the warping machine continues to operate stably. However, since the broken yarn will still be transported together with the normally transported yarn, and whether the yarn is broken is currently observed by the naked eye of the operator, it is difficult for the staff to find such broken yarn. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In order to solve the above problems in the prior art, the utility model provides a yarn feeding device for a warp knitting machine.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] A yarn feeding device for a warp knitting machine, comprising a bottom plate, an elastic yarn feeding mechanism and an infrared monitoring mechanism;

[0008] The elastic yarn feeding mechanism comprises an elastic sheet and a yarn feeding ring, and a plurality of elastic sheets are provided, which are linearly and evenly spaced and arranged on the bottom plate;

[0009] The yarn feeding ring is mounted on the end surface of the elastic sheet away from the bottom plate;

[0010] The infrared monitoring mechanism includes an infrared transmitter, an infrared receiver, a single chip microcomputer and an alarm;

[0011] The infrared transmitter and the infrared receiver are arranged on two sides of the elastic yarn feeding mechanism relatively;

[0012] The infrared transmitter, infrared receiver and alarm are all electrically connected to the single chip computer.

[0013] Preferably, the infrared monitoring mechanism further comprises a connecting bracket, wherein two groups of the connecting brackets are arranged oppositely on both sides of the base plate, a fixing ring is arranged on the top of the connecting bracket, and the infrared transmitter or infrared receiver is installed in the fixing ring.

[0014] Preferably, the connecting bracket is in an L-shaped structure, and a connecting groove adapted to the base plate is provided at one end of the horizontal portion of the connecting bracket. The connecting bracket is installed on one side of the base plate through the connecting groove and is fastened by bolts.

[0015] Preferably, the alarm is a buzzer or a warning light.

[0016] Preferably, the yarn feeding ring is a semicircular ring structure.

[0017] (III) Beneficial effects

[0018] The beneficial effect of the utility model is that: by adopting the above-mentioned technical scheme, the yarn passes through the yarn feeding ring, and the separation and traction of the yarn is realized by the yarn feeding ring. The yarn feeding ring is an annular structure, and its outer wall is relatively smooth, which is not easy to wear and break the yarn. In combination with the elastic sheet, the tension is automatically adjusted during the yarn transportation process. During the yarn feeding process, the end of the elastic sheet on the bottom plate will be bent and separated from the monitoring area of ​​the infrared transmitter and the infrared receiver. When the yarn breaks, the elastic sheet rebounds quickly and enters the monitoring area of ​​the infrared transmitter and the infrared receiver, blocking the infrared receiver from receiving the signal of the infrared transmitter, and sending the signal to the single-chip microcomputer. The single-chip microcomputer drives the alarm to sound to realize the break warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a yarn feeding device of a warp knitting machine;

[0020] Figure 2 It is a schematic diagram of the main structure of a yarn feeding device of a warp knitting machine;

[0021] Figure 3 A schematic diagram of the installation structure of the connecting bracket.

[0022] Description of reference numerals:

[0023] 1. Bottom plate;

[0024] 2. Elastic yarn feeding mechanism;

[0025] 21. Elastic sheet; 22. Yarn feeding ring;

[0026] 3. Infrared monitoring mechanism;

[0027] 31. Infrared transmitter; 32. Infrared receiver; 33. Connecting bracket; 34. Fixing ring; 35. Alarm;

[0028] 4. Bolts. DETAILED DESCRIPTION

[0029] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0030] Please refer to Figures 1 to 3 , the utility model provides a yarn feeding device for a warp knitting machine, comprising a bottom plate 1, an elastic yarn feeding mechanism 2 and an infrared monitoring mechanism 3;

[0031] The elastic yarn feeding mechanism 2 comprises an elastic sheet 21 and a yarn feeding ring 22. A plurality of elastic sheets 21 are provided, which are linearly and evenly spaced and arranged on the bottom plate 1.

[0032] The yarn feeding ring 22 is installed on the end surface of the elastic sheet 21 away from the bottom plate 1;

[0033] The infrared monitoring mechanism 3 includes an infrared transmitter 31, an infrared receiver 32, a single chip microcomputer and an alarm 35;

[0034] The infrared transmitter 31 and the infrared receiver 32 are relatively arranged on two sides of the elastic yarn feeding mechanism 2;

[0035] The infrared transmitter 31, the infrared receiver 32 and the alarm 35 are all electrically connected to the single chip microcomputer;

[0036] When in use, the yarn passes through the yarn feeding ring 22, and the yarn is separated and pulled by the yarn feeding ring 22. The yarn feeding ring 22 is an annular structure, and its outer wall is relatively smooth, which is not easy to wear and break the yarn. In conjunction with the elastic sheet 21, it can realize automatic adjustment of the tension during the yarn transportation process. During the yarn feeding process, the end of the elastic sheet 21 on the bottom plate 1 will be bent and separated from the monitoring area of ​​the infrared transmitter 31 and the infrared receiver 32. When the yarn breaks, the elastic sheet 21 rebounds quickly and enters the monitoring area of ​​the infrared transmitter 31 and the infrared receiver 32, blocking the infrared receiver 32 from receiving the signal of the infrared transmitter 31, and sending the signal to the single-chip microcomputer. The single-chip microcomputer drives the alarm 35 to sound, realizing a break warning.

[0037] In this embodiment, the infrared monitoring mechanism 3 also includes a connecting bracket 33. There are two groups of connecting brackets 33, which are relatively arranged on both sides of the base plate 1. A fixing ring 34 is arranged on the top of the connecting bracket 33. The infrared transmitter 31 or the infrared receiver 32 is installed in the fixing ring 34. The connecting bracket 33 has an L-shaped structure. One end of the horizontal part of the connecting bracket 33 is provided with a connecting groove that is compatible with the base plate 1. The connecting bracket 33 is installed on one side of the base plate 1 through the connecting groove and is fastened by bolts 4; the detachable connecting bracket 33 can realize the disassembly and assembly of the infrared monitoring mechanism 3. The yarn feeding device of the warp knitting machine with the infrared monitoring mechanism 3 removed can be used as an ordinary tension plate, which is flexible to use and suitable for large-scale promotion and use.

[0038] In this embodiment, the alarm 35 is a buzzer or a warning light.

[0039] In this embodiment, the yarn feeding ring 22 is in a semicircular ring structure, and the outer wall of the yarn feeding ring 22 is smooth and not easy to damage the yarn.

[0040] The working principle of the utility model is as follows:

[0041] The yarn passes through the yarn feeding ring 22, and the yarn is separated and pulled by the yarn feeding ring 22. The yarn feeding ring 22 is an annular structure, and its outer wall is relatively smooth, which is not easy to wear and break the yarn. In conjunction with the elastic sheet 21, it can realize automatic adjustment of the tension during the yarn transportation process. During the yarn feeding process, the end of the elastic sheet 21 on the bottom plate 1 will be bent and out of the monitoring area of ​​the infrared transmitter 31 and the infrared receiver 32. When the yarn breaks, the elastic sheet 21 rebounds quickly and enters the monitoring area of ​​the infrared transmitter 31 and the infrared receiver 32, blocking the infrared receiver 32 from receiving the signal of the infrared transmitter 31, and sending the signal to the single-chip microcomputer. The single-chip microcomputer drives the alarm 35 to sound, realizing a break warning.

[0042] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0043] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A yarn feeding device for a warp knitting machine, characterized in that: It includes a bottom plate, an elastic yarn feeding mechanism and an infrared monitoring mechanism; The elastic yarn feeding mechanism comprises an elastic sheet and a yarn feeding ring, and the elastic sheets are provided in plurality and are linearly and evenly spaced and arranged on the bottom plate; The yarn feeding ring is mounted on the end surface of the elastic sheet away from the bottom plate; The infrared monitoring mechanism includes an infrared transmitter, an infrared receiver, a single chip microcomputer and an alarm; The infrared transmitter and the infrared receiver are arranged on two sides of the elastic yarn feeding mechanism relatively; The infrared transmitter, infrared receiver and alarm are all electrically connected to the single chip computer.

2. A yarn feeding device for a warp knitting machine according to claim 1, characterized in that: The infrared monitoring mechanism also includes a connecting bracket, which is provided with two groups and is relatively arranged on both sides of the bottom plate. A fixing ring is provided on the top of the connecting bracket, and the infrared transmitter or infrared receiver is installed in the fixing ring.

3. A yarn feeding device for a warp knitting machine according to claim 2, characterized in that: The connecting bracket is in an L-shaped structure, and a connecting groove adapted to the base plate is provided at one end of the horizontal portion of the connecting bracket. The connecting bracket is installed on one side of the base plate through the connecting groove and is fastened by bolts.

4. A yarn feeding device for a warp knitting machine according to claim 1, characterized in that: The alarm is a buzzer or a warning light.

5. The yarn feeding device of a warp knitting machine according to claim 1, characterized in that: The yarn feeding ring is in a semicircular ring structure.

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