CN216998778U - Knitting machine broken string detection device - Google Patents

Abstract

The utility model discloses a broken thread detection device for a knitting machine, which comprises a shell, wherein a light touch button is fixedly arranged in the shell and can output high and low levels to a control circuit of the knitting machine, a swing arm is rotationally arranged in the shell, yarn limiting grooves are respectively arranged on two sides of the swing arm, which are positioned at a rotation center, a fan-shaped abutting part extends towards one side of the rotation center of the swing arm, the arc-shaped side edge of the fan-shaped abutting part abuts against the light touch button, when the tension of one yarn is out of a set range or is broken, the light touch button outputs low levels to the control circuit of the knitting machine, through holes for penetrating through the yarns are arranged on two opposite sides of the shell, the two yarns penetrating through the through holes are respectively limited in the yarn limiting grooves, the moving space of the yarns is limited, whether the two yarns are broken or not can be detected simultaneously, the tension of the two yarns can be compared, when the tension of one yarn is out of the set range or is broken, can provide electric signals in time to control the knitting machine to stop.

Description

Knitting machine broken string detection device

Technical Field

The utility model belongs to the technical field of knitting machinery, and particularly relates to a broken thread detection device for a knitting machine.

Background

The broken thread detection device is a device for detecting whether the yarn is broken or not in the knitting process of the knitting machine, and can be stopped in time after the broken knitting thread is detected, so that the defect of a knitted product caused by continuous knitting after the broken knitting thread is prevented.

For example, patent publication No. CN214087139U discloses a yarn breakage detecting device for textile machinery, which can only detect whether one yarn is broken, and can stop the yarn connection only when the yarn is broken. In the knitting process of the knitting machine, the tension of each yarn has a large influence on the quality of a knitted product, each yarn has a set tension, and the quality of the knitted product is influenced by the excessive or insufficient tension. The conventional wire breakage detecting device does not have a function of detecting the tension.

SUMMERY OF THE UTILITY MODEL

The utility model provides a broken thread detection device for a knitting machine, aiming at the defects of the prior art, the broken thread detection device for the knitting machine can simultaneously detect whether two yarns are broken or not, can compare the tension of the two yarns, and can provide an electric signal to control the stop of the knitting machine when the tension of one yarn is out of a set range or broken.

In order to solve the technical problems, the utility model is solved by the following technical scheme: a thread breakage detection device for a knitting machine comprises a shell, wherein a light touch button is fixedly arranged in the shell and can output high and low levels to a control circuit of the knitting machine, a swing arm is rotatably arranged in the shell and is provided with yarn limiting grooves on two sides of the rotation center, a sector abutting part extends towards one side of the rotation center of the swing arm, the arc-shaped side edge of the sector abutting part abuts against the light touch button, when the tension of one yarn is outside a set range or is broken, the light touch button outputs low levels to the control circuit of the knitting machine, so that an electric signal can be timely provided to control the knitting machine to stop when the tension of one yarn is outside the set range or is broken, through holes for penetrating the yarn are arranged on two opposite sides of the shell, and two yarns penetrating through the through holes are respectively limited in the yarn limiting grooves, the moving space of the yarn is limited.

Among the above-mentioned technical scheme, preferred, the swing arm set up in dab the button below, fan-shaped support portion follows upwards extend the rotation center of swing arm, has realized fan-shaped support portion with the swing arm rotation range is the same, has improved the precision that detects.

Among the above-mentioned technical scheme, it is preferred, be provided with the location axle on the casing, the swing arm with the location axle passes through the bearing and rotates to be connected, has realized the swing arm rotates and fixes a position, through the bearing rotates to be connected and has reduced friction when the swing arm rotates has improved the precision that detects.

Among the above-mentioned technical scheme, it is preferred, the swing arm is located the both sides of rotation center and all is provided with the external screw thread, screw-thread fit has the regulating wheel on the external screw thread, provides regulating wheel home range, the yarn spacing groove winds the periphery setting of regulating wheel is knowing that two yarns normal conditions under the tensile force not simultaneously, the accessible is adjusted the regulating wheel position changes the position of yarn spacing groove to change the yarn position, realize at last the balance of swing arm has realized the ability that two different tensile forces's yarns also can detect jointly, the through-hole is horizontal waist hole, and this design provides the regulation space of yarn.

Among the above-mentioned technical scheme, it is preferred, the swing arm both ends are followed the vertical waist hole of shell both sides is worn out, the waist hole is greater than the required swing range at the both ends of swing arm provides the swing range of swing arm, swing arm both ends detachable cover is equipped with the positioning disk, set up on the shell and be used for the location the supporting part of positioning disk, the positioning disk can be fixed with this restriction at both ends when the unwrapping wire the swing of swing arm when the unwrapping wire.

Among the above-mentioned technical scheme, it is preferred, the shell top is provided with the opening, the opening upper cover is equipped with the lid, provides more dress line spaces through opening the lid when dress line, has reduced the degree of difficulty when dress line.

Compared with the prior art, the utility model has the following beneficial effects: 1. the broken yarn detection device for the knitting machine can simultaneously detect whether two yarns are broken or not and can compare the tension of the two yarns, and when the tension of one yarn is out of a set range or broken, an electric signal can be timely provided to control the knitting machine to stop.

2. The swing arm is rotatably connected through the bearing, so that friction generated when the swing arm rotates is reduced, and the detection accuracy is improved.

3. According to the utility model, when the tension of two yarns is different under normal conditions, the balance of the swing arm can be realized by adjusting the position of the yarn limiting groove, and the capability of detecting the two yarns with different tensions together is realized.

4. According to the utility model, when the wire is installed, the fixed disc limits the swing of the swing arm, so that the wire installing difficulty is reduced.

5. According to the utility model, more wire installing spaces are provided by opening the cover body during wire installing, and the wire installing difficulty is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of an embodiment of the utility model.

Fig. 3 is a schematic cross-sectional structural diagram of a normal working state in the embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view of the yarn breaking or tension exceeding a set range according to the embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view illustrating another embodiment of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 5, a broken thread detection device for a knitting machine includes a housing 1, a light touch button 2 is fixedly disposed in the housing 1, the light touch button 2 can output high and low levels to a control circuit of the knitting machine, a swing arm 3 is rotatably disposed in the housing 1, yarn limiting grooves 4 are disposed on two sides of the swing arm 3 at a rotation center, a sector abutting portion 5 extends from the rotation center of the swing arm 3 to one side, an arc-shaped side of the sector abutting portion 5 abuts against the light touch button 2, a size of a set detection range can be changed by changing an arc length of the arc-shaped side, the light touch button 2 is normally pressed by the sector abutting portion 5, the light touch button 2 outputs high levels to the control circuit of the knitting machine, when a tension of one yarn is outside the set range or is broken, the sector abutting portion 5 starts to rotate by being driven by the swing arm 3, the sector abutting portion 5 releases the pressing of the light touch button 2, the touch button 2 outputs low level to a control circuit of the knitting machine, the knitting machine stops running, electric signals can be timely provided to control the knitting machine to stop when the tension of one yarn is out of a set range or broken, through holes 6 for penetrating the yarn are formed in two opposite sides of the shell 1, two yarns penetrating through the through holes 6 are respectively limited in yarn limiting grooves 4, the yarn limiting grooves 4 are supported by the yarn, and the yarn limiting grooves 4 limit the moving space of the yarn.

In this example, swing arm 3 sets up in dabbing button 2 below, and sector support portion 5 upwards extends from swing arm 3's rotation center, and swing arm 3's rotation hole is concentric with the centre of a circle of sector support portion 5's arc side, has realized that sector support portion 5 is the same with swing arm 3 rotation range, has improved the precision that detects.

In this example, be provided with location axle 7 on the casing, swing arm 3 passes through the bearing with location axle 7 and rotates to be connected, has realized swing arm 3 and has rotated and fix a position, rotates through the bearing to connect and has reduced the friction when swing arm 3 rotates, has improved the precision that detects.

In this example, swing arm 3 is located the both sides of rotation center and all is provided with external screw thread 8, screw-thread fit has regulating wheel 9 on the external screw thread 8, regulating wheel 9 home range is provided, yarn spacing groove 4 sets up around the periphery of regulating wheel 9, it is different to know two yarn normal conditions tensioning force down, the accessible is adjusted regulating wheel 9 position and is changed the position of yarn spacing groove 4, thereby change the yarn position, realize swing arm 3's balance at last, the ability that two different tensioning force's yarns also can detect jointly has been realized, the difference of the long tight power that detects simultaneously can change through the length that changes the swing arm. The through holes 6 are transverse waist holes, and the design provides yarn adjusting space.

In this example, the vertical waist hole of swing arm 3 both ends follow shell 1 both sides is worn out, and this waist hole is greater than the swing range that swing arm 3 takes place when the tensile force of one of them yarn is outside the settlement scope or fracture, provides the swing range of swing arm 3, and the detachable cover in swing arm 3 both ends is equipped with positioning disk 10, sets up the supporting part 11 that is used for fixing a position positioning disk 10 on shell 1, and positioning disk 10 can be fixed with the swing of this restriction swing arm 3 when the binding at both ends when the binding.

In this example, shell 1 top is provided with opening 12, and opening 12 upper cover is equipped with lid 13, can provide more dress line spaces through opening lid 13 when dress line, reduces the degree of difficulty when dress line.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. A broken thread detection device for a knitting machine comprises a shell (1), and is characterized in that: the utility model discloses a yarn machine, including shell (1), swing arm (3), rotation center department of swing arm (3), the both sides that are located rotation center of shell (1) internal fixation are provided with dabs button (2), the rotation center department of swing arm (3) has the fan-shaped portion (5) of supporting to one side extension, the fan-shaped arc side that supports portion (5) with dabs button (2) and offset, the both sides that shell (1) is relative are equipped with through-hole (6) that are used for passing the yarn, pass two yarns of through-hole (6) be spacing respectively in yarn spacing groove (4).

2. The thread breakage detecting device for knitting machine according to claim 1, characterized in that: the swing arm (3) is arranged below the light touch button (2), and the sector abutting part (5) extends upwards from the rotating center of the swing arm (3).

3. The thread breakage detecting device for knitting machine according to claim 1, characterized in that: the shell is provided with a positioning shaft (7), and the swing arm (3) is rotatably connected with the positioning shaft (7) through a bearing.

4. The thread breakage detecting device for knitting machine according to claim 1, characterized in that: swing arm (3) are located the both sides at rotation center and all are provided with external screw thread (8), screw-thread fit has regulating wheel (9) on external screw thread (8), yarn spacing groove (4) wind the periphery setting of regulating wheel (9), through-hole (6) are horizontal waist hole.

5. The thread breakage detecting device for knitting machine according to claim 1, characterized in that: swing arm (3) both ends are followed the vertical waist hole of shell (1) both sides is worn out, swing arm (3) both ends detachable cover is equipped with positioning disk (10), set up on shell (1) and be used for the location supporting part (11) of positioning disk (10).

6. The thread breakage detecting device for knitting machine according to claim 1, characterized in that: an opening (12) is formed in the top of the shell (1), and a cover body (13) is covered on the opening (12).

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