CN213624533U - Yarn breaker and roving blocking device - Google Patents

Abstract

The utility model discloses a broken yarn ware and roving blocking device, this broken yarn ware includes the base, through the pivot along the clamp plate of installing on the base of upper and lower direction upset, install detachable cockscomb structure blade on the front end portion of clamp plate, the base includes the installation cavity, set up the baffle in the installation cavity the place ahead, the baffle is provided with the step towards installation cavity one side, the height of step is less than the height of baffle, the roving is worn to establish along self axial through the clearance between blade and step, broken yarn ware includes disconnected yarn state and non-disconnected yarn state, when blade on the clamp plate was kept away from mutually with the baffle, disconnected yarn ware was in the non-disconnected yarn state; when the pressing plate overturns towards the baffle plate to the blade on the pressing plate and is attached to the step, the yarn cutter is in a yarn cutting state, and the yarn cutter further comprises a switching mechanism which is installed on the base and used for switching the working state of the yarn cutter. The yarn cutter has high yarn cutting speed and strong universality.

Description

Yarn breaker and roving blocking device

Technical Field

The utility model relates to a spinning machine technical field, concretely relates to broken yarn ware and roving blocking device.

Background

In textile machines, it is common to apply yarn breakers, i.e. devices for cutting the filaments wound or knitted by the textile machine, which are divided into manual yarn breakers and automatic yarn breakers.

The existing manual yarn cutter needs to be operated by people in close range, and has higher requirement on the skill of an operator.

And the automatic yarn cutter can realize the remote operation of an operator, namely, the operator can perform yarn cutting operation while working at other stations. However, the existing automatic yarn cutter has many parts and large overall size, and meanwhile, for roving (fiber), when many automatic yarn cutters are used for yarn cutting, the roving is usually pressed by a pressure rod while being cut by a cutter, so that the situation that the roving is not pressed and wound on a spindle of a doubling winder to form a waste product is avoided, for example, patent No. 201310652792.6 (yarn cutter for doubling winder) adopts the method, in the yarn cutting process, the roving is mainly pressed by the pressure rod, the cutter cuts the roving, and the edge of the cutter is easy to wear. For this reason, it is necessary to develop a new yarn cutter to improve the disadvantages of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, providing a broken yarn ware, its model is little, convenient operation, the commonality is strong.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a yarn breaker comprises a base and a pressing plate which is arranged on the base and overturns along the vertical direction through a rotating shaft, wherein a detachable blade is arranged at the front end of the pressing plate, the blade is in a sawtooth shape, the base comprises an installation cavity with a through inner cavity and a baffle arranged in front of the installation cavity, a step is arranged on one side of the baffle, which faces the installation cavity, the height of the step is lower than that of the baffle, roving axially penetrates through a gap between the blade and the step, the yarn breaker comprises a yarn breaking state and a non-yarn breaking state, and when the blade on the pressing plate is far away from the baffle, the yarn breaker is in the non-yarn breaking state; when the pressing plate overturns towards the baffle plate to the lower surface of the blade on the pressing plate and is attached to the upper surface of the step, the yarn cutter is in a yarn breaking state, and the yarn cutter further comprises a switching mechanism which is arranged on the base and used for switching the working state of the yarn cutter.

Preferably, the upper surface of the step is an inclined surface, and the axis of the rotating shaft is located in the plane of the upper surface of the step.

Preferably, the front end of the pressing plate is provided with a slot, the tail of the blade is provided with an elastic bulge, and the blade can be inserted into the slot in a matched manner through the elastic bulge.

In one embodiment, the step has a width greater than the length of the teeth of the serrations on the blade.

Preferably, an ear plate part is arranged on one side of the pressing plate, which is far away from the blade, the switching mechanism comprises a suction type electromagnet arranged in the installation cavity, the electromagnet comprises an electromagnet shell, an electromagnetic coil arranged in the electromagnet shell, and an iron core which is inserted in the electromagnetic coil and can axially extend out of or retract into the electromagnet shell, when the yarn cutter is in a non-yarn-breaking state, the iron core extends out of the electromagnet shell and is abutted against the ear plate part, and the blade on the pressing plate is far away from the baffle plate; when the yarn cutter is in a yarn breaking state, the iron core retracts into the electromagnetic shell to be separated from the lug plate part, the pressing plate drives the blade to rotate, and the blade on the pressing plate is contacted with the upper surface of the step.

Preferably, the yarn cutter further comprises a detachable dust cover covering the base, and a through hole for the roving to penetrate through is formed in the dust cover.

Preferably, a detachable balancing weight is further mounted on one side, close to the blade, of the pressing plate.

Another object of the utility model is to provide a roving blocking device, including the base plate, install cradle on the base plate, install core silk broken end signal generator and foretell yarn clipper on the cradle.

Preferably, the core wire breakage signal generator includes a plurality of godet rollers installed at both sides of the cradle in the length direction and a plurality of sensors corresponding to the godet rollers one-to-one in number.

In a specific embodiment, the sensor is a photoelectric sensor.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a broken yarn ware among roving blocking device is through setting up the blade of taking the sawtooth, set up the step in one side of baffle orientation clamp plate, make at broken yarn in-process, the roving passes between clamp plate and the step, can not touch shearing mechanism's mechanical part, simultaneously at broken yarn in-process, the roving is pressed between step and blade, can be when broken yarn, the roving is pushed down, can not twine at other mechanical positions, and adopt the blade of taking the sawtooth, can differentiate roving fibre into a root spun yarn fast, the cut-off speed is fast, can not cause the influence to rather than adjacent resultant yarn.

Drawings

FIG. 1 is a schematic structural view of a yarn cutter of the present invention;

FIG. 2 is a perspective view of the yarn cutter when the middle dust cover of the present invention is disassembled;

FIG. 3 is a top view of the yarn cutter when the middle dust cover of the present invention is disassembled;

FIG. 4 is a sectional view taken at H-H of FIG. 3;

FIG. 5 is a left side view of the yarn cutter when the middle dust cover of the present invention is disassembled;

FIG. 6 is a cross-sectional view taken along line K-K of FIG. 5;

fig. 7 is a schematic structural diagram of a roving blocking device according to the present invention;

wherein: 100. a yarn cutter; 101. a substrate; 102. a cradle; 103. a core wire break signal generator; 104. a godet wheel; 105. a sensor; 1. a base; 11. a mounting cavity; 12. a baffle plate; 13. a step; 2. a rotating shaft; 3. pressing a plate; 31. a slot; 32. a ear plate portion; 4. a blade; 5. a balancing weight; 6. a dust cover; 61. a through hole; 7. an electromagnet; 71. an electromagnet housing; 72. an electromagnetic coil; 73. an iron core; 74. and (5) pressing a spring.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

The utility model provides a broken yarn ware 100, including base 1, through the pivot 2 along the clamp plate 3 of installing on base 1 of upper and lower direction upset, refer to fig. 2, 3, 4, 5 and show, install detachable blade 4 on the front end portion of this clamp plate 3, blade 4 is the cockscomb structure, base 1 is including the installation cavity 11 that has well logical inner chamber, set up baffle 12 in installation cavity 11 the place ahead, baffle 12 is provided with step 13 towards installation cavity 11 one side, this step 13 highly is less than the height of baffle 12, the roving is worn to establish through the clearance of blade 4 with step 13 along self axial. The yarn cutter 100 comprises a yarn breaking state and a non-yarn breaking state, and when the blade 4 on the pressing plate 3 is far away from the baffle 12, the yarn cutter 100 is in the non-yarn breaking state; when the pressing plate 3 is turned over towards the baffle plate 12 until the lower surface of the blade 4 on the pressing plate 3 is attached to the upper surface of the step 13, the yarn cutter 100 is in a yarn cutting state, and the yarn cutter 100 further comprises a switching mechanism which is installed on the base 1 and used for switching the working state of the yarn cutter 100.

Here, this roving is worn to establish between the clearance of blade 4 and step 13, has realized roving and broken yarn ware 100 between non-contact work, only at broken yarn in-process, just can take place the touching with broken yarn ware 100, can not cause the influence to with adjacent one-tenth yarn, has effectively prevented among the prior art that roving 1 and mechanical part friction from causing the appearance that static leads to roving winding hanging flower scheduling problem.

Here, the upper surface of the step 13 is an inclined surface, and the axis of the rotating shaft 2 is located in the plane of the upper surface of the step 13. This arrangement can ensure that during the yarn breaking process, the roving can be reliably pressed between the upper surface of the step 13 and the lower surface of the blade 4, preventing the roving from winding on other mechanical components of the yarn breaker 100 or other spindles, and simultaneously ensuring that the roving is reliably cut off.

In this embodiment, the front end of the pressing plate 3 is provided with a slot 31, as shown in fig. 2, the tail of the blade 4 is provided with an elastic protrusion (not shown), and the blade 4 can be inserted into the slot 31 in a matching manner through the elastic protrusion. This arrangement enables the blade 4 to be quickly replaced.

In this example, the width of the step 13 is greater than the length of the teeth of the serrations on the blade 4. This arrangement ensures that the roving is reliably pressed between the blade 4 and the step 13.

In this example, a detachable weight 5 is further mounted on the side of the pressing plate 3 close to the blade 4.

In this example, the lug plate portion 32 is disposed on the side of the pressing plate 3 away from the blade 4, as shown in fig. 4, the switching mechanism includes a suction type electromagnet 7 installed in the installation cavity 11, the electromagnet 7 includes an electromagnet housing 71, an electromagnetic coil 72 disposed in the electromagnet housing 71, and an iron core 73 inserted in the electromagnetic coil 72 and capable of extending out of or retracting into the electromagnet housing 71 along its own axial direction, as shown in fig. 6, when the yarn cutter 100 is in a non-yarn-breaking state, the iron core 73 extends out of the electromagnetic housing and abuts against the lug plate portion 32, and the blade 4 on the pressing plate 3 is away from the baffle plate 12; when the yarn cutter 100 is in a yarn cutting state, the iron core 73 retracts into the electromagnetic shell to be separated from the lug plate part 32, the pressing plate 3 drives the blade 4 to rotate, and the blade 4 on the pressing plate 3 is in contact with the upper surface of the step 13.

Here, the electromagnet 7 further includes a pressure spring 74 installed at the end of the iron core 73, the electromagnet 7 is externally connected with a controller (not shown in the figure) for controlling the on-off state of the electromagnet 7, when the roving normally works, the electromagnet 7 is powered off, and the iron core 73 extends out of the electromagnet housing 71 under the extrusion of the pressure spring 74 and abuts against the upper side of the ear plate portion 32; when the roving is broken, the controller energizes the electromagnet 7, the iron core 73 is sucked into the electromagnet shell 71 under the action of the magnetic field of the electromagnetic coil 72, the iron core 73 is separated from the ear plate part 32, the pressing plate 3 loses the blockage, and rotates around the rotating shaft 2 under the driving of the counterweight 5 and the self gravity until the blade 4 on the pressing plate 3 is in contact with the step 13 to cut off the roving.

In this example, the yarn cutter 100 further includes a dust cover 6 detachably covering the base 1, and as shown in fig. 1, the dust cover 6 is provided with a through hole 61 through which the roving passes. Through setting up dust cover 6, can prevent effectively that the dust from getting into base 1 in, restricted the spatial position of roving simultaneously, in the normal spinning process, the mechanical part can not touched to the roving, prevents effectively that roving and mechanical part friction from causing the static to lead to the roving winding to hang the appearance of flower scheduling problem, here, the inside wall of opening is all polished into circular-arcly, in case roving touching the opening, is torn apart.

Here, a roving blocking device is also provided, and referring to fig. 7, the roving blocking device comprises a base plate 101, a cradle 102 mounted on the base plate 101, a core wire broken end signal generator 103 mounted on the cradle 102, and the yarn cutter 100.

The core wire breakage signal generator 103 includes a plurality of godet rollers 104 mounted on both sides of the cradle 102 in the longitudinal direction and a plurality of sensors 105 corresponding to the godet rollers 104 in number one to one. In this example, the sensor 105 is a photoelectric sensor 105.

The roving blocking device further comprises a controller (not shown in the figure) installed on the substrate 101, wherein the controller is in communication connection with the sensor 105 and is electrically connected with the electromagnet 7, when the sensor 105 detects that the core wire on the godet wheel 104 is broken, a broken wire signal is transmitted to the controller, the controller is electrified to the electromagnet 7, the iron core 73 is sucked into the electromagnet shell 71 under the action of the magnetic field of the electromagnetic coil 72, the iron core 73 is separated from the ear plate part 32, the pressing plate 3 loses the blocking effect and rotates around the rotating shaft 2 under the driving of the counterweight 5 and the self gravity until the blade 4 on the pressing plate 3 is contacted with the step 13 to cut the roving. When the yarn breakage process is finished and the reset is finished, the controller cuts off the power of the electromagnet 7, the iron core 73 loses the magnetic field effect of the electromagnetic coil 72, the iron core extends out of the electromagnet shell 71 under the extrusion of the pressure spring 74, and the pressing plate 3 is manually lifted to the ear plate part 32 on the pressing plate 3 and clamped below the iron core 73 to complete the reset. Here, a conventional connection between the control and the electromagnet 7 is used, which will not be described in detail here.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. A yarn breaker comprises a base and a pressing plate which is arranged on the base and overturns along the vertical direction through a rotating shaft, and is characterized in that a detachable blade is arranged at the front end of the pressing plate, the blade is in a sawtooth shape, the base comprises an installation cavity with a through inner cavity and a baffle arranged in front of the installation cavity, a step is arranged on one side of the baffle, which faces the installation cavity, the height of the step is lower than that of the baffle, roving axially penetrates through a gap between the blade and the step, the yarn breaker comprises a yarn breaking state and a non-yarn breaking state, and when the blade on the pressing plate is far away from the baffle, the yarn breaker is in the non-yarn breaking state; when the pressing plate overturns towards the baffle plate to the lower surface of the blade on the pressing plate and is attached to the upper surface of the step, the yarn cutter is in a yarn breaking state, and the yarn cutter further comprises a switching mechanism which is arranged on the base and used for switching the working state of the yarn cutter.

2. The yarn cutter as claimed in claim 1, wherein the upper surface of the step is an inclined surface, and the axis of the rotating shaft is located in a plane of the upper surface of the step.

3. The yarn cutter according to claim 1, wherein a slot is formed in a front end portion of the pressing plate, an elastic protrusion is arranged at a tail portion of the blade, and the blade can be inserted into the slot in a matched mode through the elastic protrusion.

4. The thread cutter of claim 1, wherein the width of the step is greater than the tooth length of the teeth on the blade.

5. The yarn cutter according to claim 1, wherein a lug plate part is arranged on one side of the pressing plate, which is far away from the blade, the switching mechanism comprises a suction type electromagnet installed in the installation cavity, the electromagnet comprises an electromagnet shell, an electromagnetic coil arranged in the electromagnet shell, and an iron core inserted in the electromagnetic coil and capable of axially extending out of or retracting into the electromagnet shell, when the yarn cutter is in a non-yarn-cutting state, the iron core extends out of the electromagnet shell and abuts against the lug plate part, and the blade on the pressing plate is far away from the baffle plate; when the yarn cutter is in a yarn breaking state, the iron core retracts into the electromagnetic shell to be separated from the lug plate part, the pressing plate drives the blade to rotate, and the blade on the pressing plate is contacted with the upper surface of the step.

6. The yarn cutter as claimed in claim 1, further comprising a dust cover detachably covering the base, wherein the dust cover is provided with a through hole for the roving to pass through.

7. The yarn cutter of claim 1, wherein a detachable weight is further mounted on the pressure plate on a side close to the blade.

8. A roving blocking device comprising a base plate, a cradle mounted on the base plate, a core filament break signal generator mounted on the cradle, and a yarn cutter according to any one of claims 1 to 7.

9. The roving blocking device according to claim 8, wherein the core yarn breakage signal generator includes a plurality of godets installed at both sides in a length direction of the cradle and a plurality of sensors corresponding to the godets in number one to one.

10. The roving stop device of claim 9, wherein the sensor is a photosensor.

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