CN212477220U

CN212477220U - Yarn cutter

Info

Publication number: CN212477220U
Application number: CN202020496929.9U
Authority: CN
Inventors: 何丰; 褚为杰
Original assignee: Suzhou Dawei Automation Technology Co ltd
Current assignee: Suzhou Dawei Automation Technology Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2021-02-05
Anticipated expiration: 2030-04-08

Abstract

The utility model discloses a yarn breaker, including the base plate, install the casing on the base plate, through the rotatory clamp plate of installing in the casing of rotation axis, the casing includes open base member and the baffle that is located base member the place ahead around, a lateral wall of base member extends forward and links to each other with the baffle, the detachable blade is installed to the preceding tip of clamp plate, the yarn is worn to establish along self axial and is passed through between baffle and blade, the clamp plate has first work position and second work position, when the clamp plate is in first work position, the blade on the clamp plate is kept away from with the baffle on the casing mutually, at this moment, yarn breaker is in the state of not breaking yarn; when the pressing plate is in the second working position, the blade on the pressing plate is in contact with the baffle on the shell to cut off the yarn, at the moment, the yarn cutter is in a yarn breaking state, and the yarn cutter further comprises a switching mechanism which is arranged in the shell and used for switching the working position of the pressing plate. The yarn cutter is small in size and high in universality.

Description

Yarn cutter

Technical Field

The utility model relates to the technical field of textile machinery, concretely relates to yarn cutter.

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.

The existing automatic yarn cutter can realize remote operation of operators, namely, the operators can perform yarn cutting operation while working at other stations. However, the existing automatic yarn cutter has more parts and larger overall volume.

Therefore, 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, realized the miniaturization, the universalization of broken yarn ware.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a yarn breaker comprises a base plate, a shell and a pressing plate, wherein the base plate is arranged in the front-back direction, the shell is installed on the base plate, the pressing plate is installed in the shell and rotates through a rotating shaft, the shell comprises a base body and a baffle, the base body is open in the front and back direction, the baffle is located in front of the base body, one side wall of the base body extends forwards to be connected with the baffle, a detachable blade is installed at the front end of the pressing plate, yarns penetrate through the baffle and the blade along the axial direction of the yarns, the pressing plate is provided with a first working position and a second working position, when the pressing plate is located at the first working position, the blade on the pressing plate is far away from the baffle; when the pressing plate is located at the second working position, the blade on the pressing plate is in contact with the baffle on the shell to cut off the yarn, at the moment, the yarn cutter is in a yarn breaking state, and the yarn cutter further comprises a switching mechanism which is installed in the shell and used for switching the working position of the pressing plate.

Preferably, an ear plate part is arranged at one end of the pressing plate, which is far away from the blade, the switching mechanism comprises a suction type electromagnet arranged in an inner cavity of the base body, 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 iron core extends out of the electromagnet shell and abuts against the upper part of the ear plate part, the blade on the pressing plate is far away from the baffle, and the pressing plate is located at a first working position; when the iron core retracts into the electromagnetic shell to be separated from the lug plate, the pressing plate drives the blade to rotate, the blade on the pressing plate is in contact with the baffle on the shell, and the pressing plate is located at the second working position.

Preferably, the electromagnet further comprises a pressure spring installed at the tail end of the iron core, the electromagnet is externally connected with a controller used for controlling the on-off state of the electromagnet, when the yarn normally works, the electromagnet is powered off, and the iron core extends out of the electromagnet shell under the extrusion of the pressure spring and is abutted against the upper part of the ear plate part; when the yarn is broken, the controller energizes the electromagnet, the iron core is sucked into the electromagnet shell under the action of the magnetic field of the electromagnetic coil, the iron core is separated from the ear plate part, and the pressing plate rotates to the position that the blade on the pressing plate is contacted with the baffle on the shell.

Preferably, the yarn cutter further comprises a dust cover detachably mounted outside the shell, the shell and the pressing plate are accommodated in the dust cover, and the dust cover is provided with a notch for the yarn to penetrate through.

Preferably, the dust cover and the housing are respectively provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole correspond to each other in position and number, the yarn cutter further comprises a fixing bolt, and the fixing bolt sequentially penetrates through the first mounting hole and the second mounting hole to lock the dust cover and the housing.

Further preferably, the dust cover is further provided with a limiting convex groove, the position of the limiting convex groove corresponds to the position of the rotating shaft, and when the dust cover is installed on the shell, the end part of the rotating shaft is clamped in the limiting convex groove.

Preferably, the base member includes horizontal installation portion, is connected with the base plate through horizontal installation portion, set up the waist shape hole that extends along the length direction of base plate on the horizontal installation portion, the casing is worn to establish through bolt assembly and is linked to each other with the base plate behind the waist shape hole.

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

Preferably, the base is integrally formed with the baffle.

Preferably, the yarn cutter is still including being located the below of base plate, being used for the staple bolt fixed with the yarn cutter, the installation department of staple bolt is fixed mutually with the base plate through the retaining member.

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, through setting up the clamp plate in the casing, and fall into base member and baffle with the casing, the volume of broken yarn ware has effectively been reduced, set up the dust cover of taking the opening in the outside of casing simultaneously, the spatial position of yarn has been restricted in dirt-proof while, normal spinning in-process, the yarn passes between the clearance of baffle and blade, can not touch the mechanical part of broken yarn ware, only at the broken yarn in-process, just can take place the touching with the broken yarn ware, can not cause the influence to adjacent resultant yarn, effectively prevented among the prior art that yarn and mechanical part friction cause static to lead to the appearance of yarn winding string flower scheduling problem, here, through setting up the suction-type electro-magnet, can furthest reduce the volume of broken yarn ware.

Drawings

FIG. 1 is a schematic structural view of a yarn cutter when the middle dust cover is disassembled;

FIG. 2 is a schematic structural view of a dust cover in the yarn cutter of the present invention;

FIG. 3 is a transverse cross-sectional view of FIG. 1;

FIG. 4 is a schematic structural view of a yarn cutter connected with a controller in the utility model;

FIG. 5 is a longitudinal cross-sectional view of the controller of FIG. 4 with the controller removed;

wherein: 1. a substrate; 2. a housing; 21. a substrate; 211. a waist-shaped hole; 22. a baffle plate; 23. a second mounting hole; 3. pressing a plate; 31. a ear plate portion; 4. a rotating shaft; 5. a blade; 6. an electromagnet; 61. an electromagnet housing; 62. an electromagnetic coil; 63. an iron core; 64. a pressure spring; 7. a controller; 8. a dust cover; 81. opening the gap; 82. a limit convex groove; 83. a first mounting hole; 9. a balancing weight; 10. hooping; 11. a yarn.

Detailed Description

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

A yarn breaker comprises a base plate 1 arranged in the front-back direction, a shell 2 arranged on the base plate 1, and a pressing plate 3 arranged in the shell 2 and rotating through a rotating shaft 4, wherein the shell 2 comprises a base body 21 with front and back openings and a baffle 22 positioned in front of the base body 21, as shown in figures 1, 3 and 5, one side wall of the base body 21 extends forwards to be connected with the baffle 22, a detachable blade 5 is arranged at the front end part of the pressing plate 3, yarns 11 penetrate through a gap between the baffle 22 and the blade 5 along the self axial direction, the pressing plate 3 is provided with a first working position and a second working position, when the pressing plate 3 is positioned at the first working position, the blade 5 on the pressing plate 3 is far away from the baffle 22 on the shell 2, and at the moment, the yarn breaker is in a non-broken yarn state; when the pressing plate 3 is in the second working position, the blade 5 on the pressing plate 3 is in contact with the baffle 22 on the shell 2 to cut off the yarn 11, at this time, the yarn cutter is in a yarn cutting state, and the yarn cutter further comprises a switching mechanism which is arranged in the shell 2 and used for switching the working position of the pressing plate 3.

Here, under the normal operating condition, yarn 11 directly passes the gap between baffle 22 and blade 5 along self axial, has realized yarn 11 and the yarn breaker between non-contact type work, only in the yarn breaking process, just can take place the touching with the yarn breaker, can not cause the influence with adjacent resultant yarn, has effectively prevented that yarn 11 from causing the appearance of static and leading to yarn 11 winding string flower scheduling problem among the prior art with the mechanical part friction.

By providing the case 2 with the base body 21 opened in the front-rear direction and the baffle 22 positioned in front of the base body 21, the volume of the yarn cutter can be reduced and the movement space of the presser plate 3 can be ensured. Through setting blade 5 to detachable, when blade 5 wearing and tearing are serious, be convenient for change, certain clearance has between blade 5 and clamp plate 3, and this mode of setting can alleviate blade 5 to a certain extent and contact the stress of in-process with baffle 22 at the broken yarn in-process, reduces the wearing and tearing of blade 5. Here, a detachable weight 9 is further mounted on the side of the pressure plate 3 close to the blade 5, and as shown in fig. 1 and 5, the base 21 is integrally formed with the baffle 22.

Here, the end of the pressing plate 3, which is far away from the blade 5, is provided with a lug plate portion 31, as shown in fig. 3, the switching mechanism includes a suction type electromagnet 6 installed in the inner cavity of the base body 21, the electromagnet 6 includes an electromagnet housing 61, an electromagnetic coil 62 arranged in the electromagnet housing 61, and an iron core 63 inserted in the electromagnetic coil 62 and capable of extending out or retracting back into the electromagnet housing 61 along the axial direction thereof, as shown in fig. 3, when the iron core 63 extends out of the electromagnet housing 2 and abuts against the upper side of the lug plate portion 31, the blade 5 on the pressing plate 3 is far away from the baffle plate 22, and the pressing plate 3 is at the first working position; when the iron core 63 retracts into the electromagnetic shell 2 and is separated from the ear plate portion 31, the pressing plate 3 drives the blade 5 to rotate, the blade 5 on the pressing plate 3 is in contact with the baffle 22 on the shell 2 to cut off the yarn 11, and at the moment, the pressing plate 3 is in the second working position.

Here, the electromagnet 6 further includes a pressure spring 64 mounted at the end of the iron core 63, as shown in fig. 3, the electromagnet 6 is externally connected with a controller 7 for controlling the on-off state of the electromagnet 6, as shown in fig. 4, when the yarn 11 normally works, the electromagnet 6 is powered off, and the iron core 63 extends out of the electromagnet housing 61 under the extrusion of the pressure spring 64 and abuts against the upper side of the ear plate portion 31; when the yarn 11 is broken, the controller 7 energizes the electromagnet 6, the iron core 63 is sucked into the electromagnet housing 61 under the action of the magnetic field of the electromagnetic coil 62, the iron core 63 is separated from the ear plate part 31, the pressing plate 3 loses the blockage, and rotates around the rotating shaft 4 under the driving of the counterweight 9 and the self gravity until the blade 5 on the pressing plate 3 contacts with the baffle 22 on the housing 2 to cut off the yarn 11.

Here, this broken yarn ware still includes the dust cover 8 of detachable installation outside casing 2, see fig. 2, 4, 5, casing 2 and clamp plate 3 are acceptd in dust cover 8, a notch 81 has been seted up on dust cover 8, see fig. 2, 4, supply yarn 11 to wear to establish through, through setting up dust cover 8, can prevent effectively that the dust from getting into the broken yarn ware, the spatial position of yarn 11 has been restricted simultaneously, in the normal spinning process, yarn 11 can not touch mechanical part, prevent effectively that yarn 11 and mechanical part friction from causing the appearance of static and lead to yarn 11 winding string flower scheduling problem, here, the inside wall of notch 81 is all polished into circular-arcly, in order to prevent that yarn 11 from touching notch 81, is torn.

Here, the dust cover 8 and the housing 2 are respectively provided with a first mounting hole 83 and a second mounting hole 23, the first mounting hole 83 and the second mounting hole 23 are in one-to-one correspondence in position and number, the yarn cutter further includes a fixing bolt (not shown), and the dust cover 8 and the housing 2 are locked after the fixing bolt sequentially penetrates through the first mounting hole 83 and the second mounting hole 23.

The dust cover 8 is further provided with a limit protruding groove 82, as shown in fig. 2 and 4, the position of the limit protruding groove 82 corresponds to the position of the rotating shaft 4, and when the dust cover 8 is mounted on the housing 2, the end of the rotating shaft 4 is caught in the limit protruding groove 82.

Here, the base 21 includes a horizontal mounting portion, and is connected with the substrate 1 through the horizontal mounting portion, and a waist-shaped hole 211 extending along the length direction of the substrate 1 is formed on the horizontal mounting portion, as shown in fig. 1, 3, and 4, the housing 2 is connected with the substrate 1 after penetrating through the waist-shaped hole 211 through a bolt assembly, and by providing the waist-shaped hole 211, the relative position of the housing 2 and the substrate 1 can be adjusted according to actual conditions.

Here, the yarn cutter further comprises an anchor ear 10 located below the base plate 1 and used for fixing the yarn cutter, as shown in fig. 1, 4 and 5, an installation part of the anchor ear 10 is fixed with the base plate 1 through a locking piece, and the yarn cutter is installed on corresponding detection equipment through the anchor ear 10.

The detection device also comprises a sensor (not shown) for detecting the working condition of the yarn 11, the sensor is connected with the controller 7 and sends a detection signal to the controller 7, and the connection mode of the sensor and the controller 7 is the connection mode commonly used in the prior art and is not described in detail. When the electromagnet 6 normally works, the electromagnet is in a power-off state, and the iron core 63 extends out of the electromagnet shell 61 under the extrusion action of the pressure spring 64 and is abutted against the upper part of the lug plate part 31; when the yarn 11 is broken, the sensor sends a yarn breaking signal to the controller 7, the controller 7 energizes the electromagnet 6, the iron core 63 is sucked into the electromagnet shell 61 under the action of the magnetic field of the electromagnetic coil 62, the iron core 63 is separated from the ear plate part 31, the pressing plate 3 loses the block and rotates around the rotating shaft 4 under the driving of the counterweight 9 and the self gravity until the blade 5 on the pressing plate 3 is in contact with the baffle 22 on the shell 2 to cut off the yarn 11. When the reset is finished after the yarn breakage process, the controller 7 cuts off the power of the electromagnet 6, the iron core 63 loses the magnetic field effect of the electromagnetic coil 62, the iron core extends out of the electromagnet shell 61 under the extrusion of the pressure spring 64, and the pressing plate 3 is manually lifted to the ear plate part 31 on the pressing plate 3 and clamped into the lower part of the iron core 63 to complete the reset.

Here, a conventional connection between the controller 7 and the electromagnet 6 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

1. A yarn breaker is characterized by comprising a base plate, a shell and a pressing plate, wherein the base plate is arranged in the front-back direction, the shell is mounted on the base plate, the pressing plate is mounted in the shell and rotates through a rotating shaft, the shell comprises a base body with a front opening and a rear opening, and a baffle is positioned in front of the base body, one side wall of the base body extends forwards to be connected with the baffle, a detachable blade is mounted at the front end of the pressing plate, yarns penetrate through the baffle and the blade along the self axial direction, the pressing plate is provided with a first working position and a second working position, when the pressing plate is positioned at the first working position, the blade on the pressing plate is far away from the baffle on the shell, and at the moment; when the pressing plate is located at the second working position, the blade on the pressing plate is in contact with the baffle on the shell to cut off the yarn, at the moment, the yarn cutter is in a yarn breaking state, and the yarn cutter further comprises a switching mechanism which is installed in the shell and used for switching the working position of the pressing plate.

2. The yarn cutter according to claim 1, wherein a lug plate portion is arranged at one end of the pressing plate, which is far away from the blade, the switching mechanism comprises a suction type electromagnet arranged in an inner cavity of the base body, 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 iron core extends out of the electromagnet shell and abuts against the upper side of the lug plate portion, the blade on the pressing plate is far away from the baffle plate, and the pressing plate is located at a first working position; when the iron core retracts into the electromagnetic shell to be separated from the lug plate, the pressing plate drives the blade to rotate, the blade on the pressing plate is in contact with the baffle on the shell, and the pressing plate is located at the second working position.

3. The yarn breaker according to claim 2, characterized in that the electromagnet further comprises a compression spring mounted at the end of the iron core, the electromagnet is externally connected with a controller for controlling the on-off state of the electromagnet, when the yarn normally works, the electromagnet is powered off, and the iron core extends out of the electromagnet housing under the extrusion of the compression spring and abuts against the upper side of the ear plate part; when the yarn is broken, the controller energizes the electromagnet, the iron core is sucked into the electromagnet shell under the action of the magnetic field of the electromagnetic coil, the iron core is separated from the ear plate part, and the pressing plate rotates to the position that the blade on the pressing plate is contacted with the baffle on the shell.

4. The yarn cutter according to claim 1, further comprising a dust cover detachably mounted outside the housing, wherein the housing and the pressing plate are accommodated in the dust cover, and the dust cover is provided with a notch for a yarn to pass through.

5. The yarn cutter according to claim 4, wherein the dust cover and the housing are respectively provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole correspond to each other in position and number, the yarn cutter further comprises a fixing bolt, and the dust cover and the housing are locked after the fixing bolt sequentially penetrates through the first mounting hole and the second mounting hole.

6. The yarn cutter according to claim 5, wherein the dust cover is further provided with a limit convex groove, the position of the limit convex groove corresponds to the position of the rotating shaft, and when the dust cover is mounted on the housing, the end of the rotating shaft is clamped in the limit convex groove.

7. The yarn cutter according to claim 1, wherein the base body comprises a horizontal mounting portion, the horizontal mounting portion is connected with the base plate, a waist-shaped hole extending along the length direction of the base plate is formed in the horizontal mounting portion, and the shell is connected with the base plate after penetrating through the waist-shaped hole through the bolt assembly.

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

9. The thread cutter of claim 1, wherein the base body is integrally formed with the baffle.

10. The yarn cutter according to claim 1, characterized in that the yarn cutter further comprises a hoop located below the base plate and used for fixing the yarn cutter, and an installation part of the hoop is fixed with the base plate through a locking piece.