CN112390079B - Feeding method of cone winder - Google Patents
Feeding method of cone winder Download PDFInfo
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- CN112390079B CN112390079B CN202011362423.XA CN202011362423A CN112390079B CN 112390079 B CN112390079 B CN 112390079B CN 202011362423 A CN202011362423 A CN 202011362423A CN 112390079 B CN112390079 B CN 112390079B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/02—Arrangements for removing spent cores or receptacles and replacing by supply packages at paying-out stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/08—Automatic end-finding and material-interconnecting arrangements
- B65H67/086—Preparing supply packages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
- B65H69/04—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by knotting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
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- Quality & Reliability (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
Abstract
The invention provides a feeding method of a bobbin winder, which can automatically feed cops to the bobbin winder for unwinding. The feeding method of the bobbin winder comprises the steps of firstly detecting whether a winding work position needs to be fed or not, and conveying cop to the winding work position if the winding work position needs to be fed; when the cop is positioned at the winding working position, the positioning gate is closed, and the cop is fixed; then feeding yarn heads in the cop to a yarn sucking position of a working unit of a winder for grabbing by the working unit of the winder for unwinding; and if the unwinding completion or the breakage is detected, opening the positioning gate to release the empty bobbin. The bobbin yarn feeding device has the advantages that bobbin yarns are automatically fed to a bobbin winder to be grabbed by yarn heads and unwound, the feeding process is independently controlled, an original bobbin winder control system is not changed during technical improvement, the technical improvement cost is reduced, and the applicability and the universality are improved.
Description
Technical Field
The invention relates to the technical field of spinning methods, in particular to a feeding method of a bobbin winder.
Background
At present, yarn warehouse type yarn winding equipment has extremely high domestic market share, most textile factories adopt the yarn warehouse type yarn winding equipment to wind yarns, and the yarn warehouse type yarn winding equipment needs to manually throw cops into a yarn warehouse, so that the workload is large, and the production efficiency is low. Although the existing automatic winding equipment can realize full automation of the winding process, if the yarn-warehouse winding equipment of a factory is replaced by the automatic winding equipment, the cost is too high, and the original yarn-warehouse winding equipment cannot create value. Therefore, the existing yarn warehouse type winding equipment can be technically improved to obtain the winding equipment, the automation degree is improved, and meanwhile, the investment is low.
The technically improved winding equipment has the advantages that the cop is positioned at a working position below a working unit of the winding machine, the yarn heads of the cop are required to be sucked by the lower yarn sucking piece, so that the yarns keep tension, the upper yarn sucking piece is waited to find the heads on the bobbins, and then the yarns are fed into the knotter together for knotting. It is desirable to provide a method that can feed yarn ends to a yarn suction position so that they are accurately sucked by the downdraw.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the feeding method of the bobbin winder is capable of automatically feeding cops to a working unit of the bobbin winder for unwinding.
In order to solve the technical problems, the embodiment of the invention provides a feeding method of a bobbin winder, which comprises the following steps:
step 10), conveying cop to a winding work position when the need of material supplement at the winding work position is detected;
step 20), when the bobbin yarn is detected to be positioned at a winding working position, closing a positioning gate of the winding working position, and fixing the bobbin yarn;
step 30) feeding yarn heads in the cop to a yarn sucking position of a working unit of a winder for the working unit of the winder to grab, splice and unwind.
As a further improvement of the embodiment of the invention, the invention is applied to a working unit of a winder with a yarn sucking-down part; the step 30) adopts a yarn feeding system, wherein the yarn feeding system comprises a controller and a yarn feeding device, and the yarn feeding device is arranged below a working unit of a bobbin winder;
the step 30) specifically comprises the following steps:
step 302), after receiving the yarn feeding signal, the controller generates an opening signal and sends the opening signal to the yarn feeding device;
step 303), after receiving the start signal, the yarn feeding device moves the yarn head in the cop located in the winding working position upwards to the yarn sucking position of the working unit of the winding machine, and the yarn head is sucked into the lower yarn sucking piece for the working unit of the winding machine to grab, splice and unwind.
As a further improvement of the embodiment of the invention, the yarn feeding system further comprises a first detection device, wherein the first detection device is used for detecting the action of the lower yarn sucking piece; the step 302) further includes:
step 301), when the first detection device detects the action of the yarn sucking-down part, a yarn feeding signal is generated, and the yarn feeding signal is sent to the controller.
As a further improvement of the embodiment of the invention, the first detection device is used for detecting the downward swinging motion of the lower yarn sucking piece;
said step 301) comprises: when the first detection device detects that the yarn sucking-down piece swings downwards, a yarn feeding signal is generated, and the yarn feeding signal is sent to the controller.
As a further improvement of the embodiment of the invention, the first detection device is used for detecting the movement of a driving piece used for driving the lower yarn sucking piece to act in a working unit of the winder;
said step 301) comprises:
when the first detection device detects that the driving piece rotates clockwise or anticlockwise, a yarn feeding signal is generated, and the yarn feeding signal is sent to the controller.
As a further improvement of the embodiment of the invention, the first detecting device is used for detecting the upward swinging motion of the lower yarn sucking piece;
said step 301) comprises: when the first detection device detects that the lower yarn sucking piece swings upwards, a yarn feeding signal is generated, and the yarn feeding signal is sent to the controller;
the step 302) includes: after receiving the yarn feeding signal, the controller waits for a first preset delay time, generates an opening signal and sends the opening signal to the yarn feeding device.
As a further improvement of the embodiment of the present invention, the first detection device is a photoelectric proximity switch, an inductive proximity switch, a mechanical pressure switch, a pressure sensor or a magnetic sensor.
As a further improvement of the embodiment of the invention, the yarn feeding device comprises a first air blowing member, wherein the first air blowing member is positioned below the cop;
the step 303) specifically includes:
starting the first blowing piece, blowing the yarn head in the cop upwards to the yarn sucking position of the working unit of the winder, and sucking the yarn head into the lower yarn sucking piece for the working unit of the winder to grasp, splice and unwind.
As a further improvement of the embodiment of the present invention, the yarn feeding device further includes a traction member, which is located between the winder working unit and the cop; the traction piece comprises a body, wherein the body comprises a threading cavity penetrating through the body;
the step 303) specifically includes:
the first blowing piece is started, the first blowing piece blows the yarn heads in the cop upwards out of the yarn pipe orifice and enters the threading cavity of the traction piece, the yarn heads continuously pass through the threading cavity upwards to reach the yarn sucking position of the working unit of the winder, and the yarn heads are sucked into the lower yarn sucking piece for the working unit of the winder to grab, splice and unwind.
As a further improvement of the embodiment of the invention, the yarn feeding device further comprises a traction piece and a second blowing piece, wherein the traction piece is positioned between the working unit of the winder and the cop; the traction piece comprises a body, wherein the body comprises a threading cavity penetrating through the body; the body is provided with an air inlet and an air outlet, the air inlet is communicated with the air outlet, and the air outlet is communicated with the threading cavity; the second air blowing piece is arranged at the air inlet;
the step 303) specifically includes:
starting a first air blowing piece and a second air blowing piece, wherein the first air blowing piece blows yarn heads in cops upwards out of yarn pipe openings and enters a threading cavity of a traction piece;
the second air blowing piece blows the yarn heads in the threading cavity upwards out of the threading cavity to reach the yarn sucking position of the working unit of the winder, and the yarn heads are sucked into the lower yarn sucking piece for the working unit of the winder to grab, splice and unwind.
As a further improvement of the embodiment of the invention, the air outlet is positioned on the inner wall of the lower part of the threading cavity, and the air outlet direction of the air outlet is inclined upwards.
As a further improvement of the embodiment of the invention, the bottom end opening of the threading cavity is horn-shaped.
As a further improvement of the embodiment of the invention, the yarn feeding system further comprises a second detection device; the step 30) further includes:
step 304), when the second detection device detects that the yarn head is positioned at the yarn suction position of the working unit of the winder, a feeding stopping signal is generated, and the feeding stopping signal is sent to the controller;
after receiving the feeding stopping signal, the controller generates a closing signal and sends the closing signal to the yarn feeding device;
after receiving the closing signal, the yarn feeding device stops working.
As a further improvement of the embodiment of the present invention, the step 30) further includes:
step 304), the controller waits for a second preset delay time after receiving the yarn feeding signal, generates a closing signal and sends the closing signal to the yarn feeding device;
after receiving the closing signal, the yarn feeding device stops working.
As a further improvement of the embodiment of the present invention, further comprising:
when the waiting position is detected to need material supplementing, a material supplementing gate is opened, and cop is conveyed to the waiting position;
when the cop is detected to be positioned at the waiting position, fixing the cop;
the step 10) comprises the following steps: when the need of material supplementing of the winding work position is detected, the cop is conveyed to the winding work position from the waiting position.
As a further improvement of the embodiment of the present invention, further comprising:
step 40), if the unwinding is detected to be completed, opening a positioning gate of a winding work position, and releasing the empty bobbin; if a wire break is detected, step 30) is repeated.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects: the embodiment of the invention provides a feeding method of a bobbin winder, which can automatically feed cops to the bobbin winder for unwinding. The feeding method of the bobbin winder comprises the steps of firstly detecting whether a winding work position needs to be fed or not, and conveying cop to the winding work position if the winding work position needs to be fed; when the cop is positioned at the winding working position, the positioning gate is closed, and the cop is fixed; then feeding yarn heads in the cop to a yarn sucking position of a working unit of a winder for the working unit of the winder to grasp, splice and unwind; if the unwinding is detected to be completed, opening a positioning gate to release the empty bobbin; if the broken yarn is detected, the yarn head in the cop is fed to the yarn sucking position of the working unit of the winder for the working unit of the winder to repeatedly grab, splice and unwind. The method realizes that the cop is automatically fed to the bobbin winder to grab yarn heads and unwind cop, the feeding process is independently controlled, the original bobbin winder control system is not changed when the technical improvement is performed, the technical improvement cost is reduced, and the applicability and the universality are improved. The material feeding process is independently controlled, the original bobbin winder control system is not required to be changed during technical improvement, and the cost of technical improvement is reduced.
Drawings
FIG. 1 is a schematic diagram of a working unit of a winder to which a feeding method of the winder of the embodiment of the present invention is applied;
FIG. 2 is a schematic view of the working state of a working unit of a winder in which the feeding method of the winder according to the preferred embodiment of the present invention is applied;
fig. 3 is a schematic structural view of a traction member in a feeding method of a winder according to a preferred embodiment of the present invention.
In the figure, a winder working unit 1, a lower yarn sucking piece 11, a positioning gate 12, a feeding gate 13, a cop 2, a first air blowing piece 31, a traction piece 32, a body 321, a threading cavity 3211, an air inlet 3212, an air outlet 3213 and a second detection device 33.
Detailed Description
The technical scheme of the invention is described in detail with reference to the accompanying drawings.
The embodiment of the invention provides a feeding method of a bobbin winder, which comprises the following steps:
step 10), conveying cop to a winding work position when the need of material supplement at the winding work position is detected;
step 20), when the bobbin yarn is detected to be positioned at a winding working position, closing a positioning gate 12 of the winding working position, and fixing the bobbin yarn;
step 30) feeding yarn heads in the cop to a yarn sucking position of a working unit of a winder for the working unit of the winder to grab, splice and unwind.
The feeding method of the bobbin winder comprises the steps of firstly detecting whether a winding work position needs to be fed or not, and conveying cop to the winding work position if the winding work position needs to be fed; when the cop is positioned at the winding working position, the positioning gate 12 is closed, and the cop is fixed; then feeding yarn heads in the cop to a yarn sucking position of a working unit of a winder for the working unit of the winder to grasp, splice and unwind; if the unwinding is detected, opening the positioning gate 12 to release the empty bobbin; if the broken yarn is detected, the yarn head in the cop is fed to the yarn sucking position of the working unit of the winder for the working unit of the winder to repeatedly grab, splice and unwind. According to the method, cop is automatically fed to the bobbin winder to capture yarn heads and unwind cop, the feeding process is independently controlled, an original bobbin winder control system is not changed during technical improvement, the technical improvement cost is reduced, and the applicability and the universality are improved.
Preferably, the method of this embodiment further includes:
when the waiting position is detected to need material supplementing, a material supplementing gate 13 is opened, and cop is conveyed to the waiting position;
and when the cop is detected to be positioned at the waiting position, fixing the cop.
Step 10) comprises: when the need of material supplementing of the winding work position is detected, the cop is conveyed to the winding work position from the waiting position.
In the method, cop is firstly conveyed to the waiting position, and when the yarn supplementing is needed at the winding working position, the cop at the waiting position is supplemented to the winding working position. The bobbin yarn storage device is used for storing bobbin yarns, supplementing the bobbin yarns for a winding work position in time, realizing continuous production, reducing waiting and avoiding time waste to cause yield reduction.
In step 20) of the present embodiment, when it is detected that the cop is located at the winding position, the positioning shutter 12 of the winding position is closed, and the cop is fixed. After the cop reaches the winding position, the cop is fixed by using the positioning gate 12. Therefore, when the unwinding work is performed, the bobbin yarn position is fixed, and the bobbin yarn cannot shake or shift due to the traction of the yarn, so that the unwinding work is smoothly performed.
Preferably, the feeding method of the winder according to the embodiment of the present invention is applied to the working unit 1 of the winder including the yarn sucking-down member 11, as shown in fig. 1. Step 30) adopts a yarn feeding system, wherein the yarn feeding system comprises a first detection device, a controller and a yarn feeding device, the first detection device is arranged on the working unit 1 of the winding machine, and the yarn feeding device is arranged below the working unit 1 of the winding machine.
Step 30) specifically comprises the following steps:
step 302), after receiving the yarn feeding signal, the controller generates an opening signal and sends the opening signal to the yarn feeding device;
step 303), after receiving the start signal, the yarn feeding device moves the yarn head in the bobbin yarn 2 at the winding work position upwards to the yarn sucking position of the winder work unit 1, and the yarn head is sucked into the lower yarn sucking member 11 for the winder work unit to grab, splice and unwind.
According to the method in the embodiment, the controller receives the yarn feeding signal, namely the signal that the lower yarn sucking piece 11 is ready to suck the yarn head, generates the starting signal and sends the starting signal to the yarn feeding device, the yarn feeding device is triggered to move the yarn head of the cop 2 upwards to the yarn sucking position, the yarn feeding device is closely matched with the lower yarn sucking piece 11, the yarn head is sucked by the lower yarn sucking piece 11 successfully, automatic yarn feeding is achieved, a control system is not required to be improved, the technical improvement cost is reduced, and independent maintenance is facilitated.
The yarn feeding signal, i.e. the signal that the yarn end is ready to be sucked by the yarn lower suction member 11, can be generated in various ways. Preferably, the yarn feeding system further comprises first detecting means for detecting the action of the lower suction member (11). Step 302) is preceded by:
step 301), when the first detection device detects the action of the yarn sucking-down piece (11), a yarn feeding signal is generated and sent to the controller.
In this embodiment, the first detection device is provided to detect the action of the yarn-down part 11, that is, the action of the yarn-down part 11 preparing to suck yarn ends, and automatically generate yarn feeding signals, so that the automation degree of the existing equipment is improved, the modification is small, and the investment is reduced.
Preferably, in step 301), the first detecting device detects the action of the yarn-down member 11, and may adopt various methods, specifically as follows:
in the first method, the first detecting device detects the downward swing motion of the lower yarn sucking member 11, and when detecting the downward swing motion of the lower yarn sucking member 11, a yarn feeding signal is generated and sent to the controller.
In the method, when the downward swing of the lower yarn sucking piece 11 is detected, namely, the lower yarn sucking piece 11 moves to the yarn sucking position, the yarn feeding device is triggered to feed yarns, so that the yarn feeding device is closely matched with the lower yarn sucking piece 11, the yarn head is successfully sucked by the lower yarn sucking piece 11, and automatic yarn feeding is realized. The first detection device can be arranged on the shell of the working unit of the winder, the working unit of the winder is not required to be disassembled, and the device is convenient to install and convenient to maintain.
The second method is that the first detection device detects the upward swing motion of the lower yarn sucking piece 11, and when detecting the upward swing motion of the lower yarn sucking piece 11, a yarn feeding signal is generated and sent to the controller; after receiving the yarn feeding signal, the controller waits for a first preset delay time to generate an opening signal.
When the yarn sucking-down member 11 does not suck the yarn end successfully, the control system of the working unit 1 of the winder controls the yarn sucking-down member 11 to swing upwards, and after a preset time, the yarn sucking-down member 11 swings downwards again. In the method, the first preset delay time is set as the preset time, the upward swing of the lower yarn sucking piece 11 is detected, and after the controller waits for the first preset delay time, namely, when the lower yarn sucking piece 11 swings downwards, the yarn feeding device is triggered to feed yarns, so that the yarn feeding device is closely matched with the lower yarn sucking piece 11, the yarn head is successfully sucked by the lower yarn sucking piece 11, and automatic yarn feeding is realized. In the method, the first detection device can be arranged on the shell of the working unit 1 of the winding machine, the working unit of the winding machine is not required to be disassembled, and the method is convenient to install and convenient to maintain.
In the third method, the first detection device detects the movement of a driving member for driving the yarn-down member 11 to act in the working unit 1 of the winder, and when detecting that the driving member rotates clockwise or anticlockwise, the first detection device generates a yarn feeding signal and sends the yarn feeding signal to the controller. The driving member may be a pulley, a timing belt or a balance wheel, or may be other components.
In this method, the first detection device is installed inside the winder working unit, and the winder working unit needs to be detached. However, detecting the motion of the downdraw 11 by detecting the movement of the pulley, timing belt or balance wheel that drives the motion of the downdraw 11 is more direct and accurate. The belt wheel, the synchronous belt or the balance wheel is original equipment in the working unit of the winding machine, and a new driving piece is not required to be added so as to fully utilize the original equipment.
The first detection device can automatically detect the action of the lower yarn sucking piece 11, and can also cooperate with the sensing piece to detect the action of the lower yarn sucking piece 11. Preferably, the first detection means is a photoelectric proximity switch, an inductive proximity switch, a mechanical pressure switch, a pressure sensor or a magnetic sensor. Preferably, the sensing piece is a sensing bracket, a sensing label, a reflecting plate, a magnet, a pull rope or a metal piece inherent on the working unit 1 of the winding machine. The controller in this embodiment is an existing device. The controller is a PLC controller, PAC controller or IPC controller, for example, a controller with the model of the tandem brand being PLC H3U-1616 MT-XP.
Preferably, the yarn feeding device comprises a first air blowing member 31, as shown in fig. 2, the first air blowing member 31 being located below the cop 2.
Step 303) specifically includes:
the first blowing member 31 is opened to blow the yarn head in the bobbin yarn 2 upward to the yarn sucking position of the winder working unit 1, and the yarn head is sucked into the lower yarn sucking member 11 for the winder working unit to grasp, splice and unwind.
The method of the embodiment controls the first blowing part 31 to blow by detecting the action of the lower yarn sucking part 11, accurately and timely feeds the yarn head to the yarn sucking position, and realizes automatic yarn feeding. The feeding is carried out by adopting an air blowing mode, and the structure is simple.
Preferably, the yarn feeding device comprises a first blowing member 31 and a pulling member 32, as shown in fig. 2, the first blowing member 31 being located below the cop 2. The traction member 32 is located between the winder working unit 1 and the cop 2. As shown in fig. 3, the retractor 32 includes a body 321, and the body 321 includes a threading cavity 3211 extending therethrough.
Step 303) specifically includes:
the first blowing part 31 is started, the first blowing part 31 blows the yarn heads in the cop upwards out of the yarn pipe orifice and enters the threading cavity 3211 of the traction part 32, the yarn heads continue to pass through the threading cavity 3211 upwards to reach the yarn suction position of the working unit 1 of the winder, and the yarn heads are sucked into the lower yarn suction part 11 for grabbing, splicing and unwinding of the working unit of the winder.
In the method of the embodiment, the traction piece 32 is arranged between the cop 2 and the working unit 1 of the winder, the bottom opening of the threading cavity 3211 is opposite to the small-end pipe orifice of the cop 2, and the top opening of the threading cavity 3211 is opposite to the yarn sucking position of the working unit 1 of the winder. The pulling member 32 is provided and the threading cavity 3211 serves as a pulling passage for the yarn end. Under the action of the first blowing part 31, the yarn nozzle blown out by the yarn head moves upwards in the threading cavity 3211, and the yarn head is directionally sent to the yarn sucking position of the working unit 1 of the winder from the cop, so that reliable and accurate yarn feeding is further ensured. In particular, when the yarn suction position of the bobbin tip and the winder working unit 1 are far apart, the moving direction of the yarn end can be limited by the traction member 32 so as to reach the yarn suction position.
Preferably, the yarn feeding device comprises a first air blowing member 31, a traction member 32 and a second air blowing member, the first air blowing member 31 being located below the cop 2. The traction member 32 is located between the winder working unit 1 and the cop 2. As shown in fig. 3, the retractor 32 includes a body 321, and the body 321 includes a threading cavity 3211 extending therethrough. The body 321 is provided with an air inlet 3212 and an air outlet 3213, the air inlet 3212 is communicated with the air outlet 3213, and the air outlet 3213 is communicated with the threading cavity 3211. The second air blowing member is provided at the air inlet 3212.
The step 303) specifically includes:
the first air blowing piece 31 and the second air blowing piece are started, the first air blowing piece 31 blows the yarn heads in the cop 2 upwards out of the yarn pipe mouth and enters the threading cavity 3211 of the traction piece 32;
the second blowing part blows the yarn heads in the threading cavity upwards out of the threading cavity to reach the yarn sucking position of the working unit 1 of the winder, and the yarn heads are sucked into the lower yarn sucking part 11 for the working unit of the winder to grab, splice and unwind.
In the method of the embodiment, the traction piece 32 is arranged between the cop 2 and the working unit 1 of the winder, the bottom opening of the threading cavity 3211 is opposite to the small-end pipe orifice of the cop 2, and the top opening of the threading cavity 3211 is opposite to the yarn sucking position of the working unit 1 of the winder. After receiving the start signal of the controller, the first air blowing member 31 and the second air blowing member can blow simultaneously or can control to blow sequentially. The first blowing member 31 blows the yarn end in the cop 2 upward out of the yarn nozzle and into the threading cavity 3211 of the drawing member 32. The second air blowing piece is introduced with air flow from the air inlet 3212, the air flow flows into the threading cavity 3211 through the air outlet 3213, the air flow drives the yarn heads positioned at the bottom end opening of the threading cavity 3211 to move upwards from the threading cavity 3211, if the reserved length of the yarn heads is shorter, the yarn heads are unwound from the cop under the action of the air flow, and finally extend out from the top end opening of the threading cavity 3211 to reach the yarn sucking position of the working unit 1 of the winding machine.
In the method of the embodiment, the traction piece 32 is arranged, the threading cavity 3211 is used as a traction channel of yarn ends, and the air outlet 3213 and the air inlet 3212 which are communicated with the threading cavity 3211 are used as power channels to provide power, so that the yarn ends move upwards in the threading cavity 3211 and are loomed, and the yarn ends are directionally and lengthened to be sent to a yarn suction position of a working unit 1 of a winder from cop, so that reliable and accurate yarn feeding is further ensured.
Further, the air outlet 3213 is positioned on the inner wall of the lower part of the threading cavity 3211, and the air outlet direction of the air outlet 3213 is inclined upwards. The air current blows into threading cavity 3211 from the lower part slope of threading cavity 3211 upwards, produces slope ascending thrust to the yarn head, promotes the yarn head and upwards moves in threading cavity 3211, can effectively prevent that the yarn head from dropping, improves yarn head and takes off the circle effect, guarantees that the yarn head can accurately reach the yarn position of inhaling, is inhaled by yarn piece 11 down, reliably accomplishes the yarn feeding.
Further, the bottom opening of the threading cavity 3211 is horn-shaped. The horn-shaped opening plays a good guiding role, and the yarn head can conveniently enter the threading cavity 3211.
Preferably, the step 30) further includes:
step 304), the controller waits for a second preset delay time after receiving the yarn feeding signal, generates a closing signal and sends the closing signal to the yarn feeding device; after receiving the closing signal, the yarn feeding device stops working.
After receiving the yarn feeding signal, the controller waits for a second preset delay time, namely the yarn sucking piece 11 sucks the yarn successfully, and the yarn feeding device is controlled to stop working in time, so that the energy is saved, and the influence of the operation of the yarn feeding device on the subsequent cop reaching the working position is avoided.
Preferably, the yarn feeding system further comprises a second detection device 33, the second detection device 33 being connected to the controller. The step 30) further includes:
step 304), when the second detection device 33 detects that the yarn head is positioned at the yarn sucking position of the working unit 1 of the winder, a feeding stopping signal is generated, and the feeding stopping signal is sent to the controller; after receiving the feeding stopping signal, the controller generates a closing signal and sends the closing signal to the yarn feeding device; after receiving the closing signal, the yarn feeding device stops working. The second detection device 33 is a yarn sensor.
When the lower yarn sucking piece 11 does not act, namely the lower yarn sucking piece 11 successfully sucks yarns, the yarn feeding device is controlled to stop working in time, and the phenomenon that the follow-up cop reaches a working position due to the working of the yarn feeding device is avoided while energy is saved.
Preferably, the method of this embodiment further includes:
step 40), if the unwinding is detected to be completed, opening a positioning gate 12 of a winding work position, and releasing the empty bobbin; if a wire break is detected, step 30) is repeated.
Specifically, if the detection signal transmitted from the sensor for detecting yarn of the winder working unit 1 is not received and the winder working unit is working normally, the completion of unwinding is indicated, the positioning shutter 12 of the winding work position is opened, and the empty bobbin is released. If the detection signal sent by the sensor for detecting yarn of the working unit 1 of the winder is not received and the upper part of the working unit of the winder does not work normally, the yarn is broken, the control system of the working unit of the winder controls the lower yarn sucking member 11 to suck yarn, and step 30) is executed, and the yarn head in the cop is fed to the yarn sucking position of the working unit of the winder for sucking by the lower yarn sucking member 11.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the specific embodiments described above, and that the above specific embodiments and descriptions are provided for further illustration of the principles of the present invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the claims and their equivalents.
Claims (10)
1. The feeding method of the bobbin winder is characterized by comprising the following steps of:
step 10), conveying cop from a waiting position to a winding working position when the need of material supplement at the winding working position is detected; when the waiting position is detected to need material supplementing, a material supplementing gate (13) is opened, and cop is conveyed to the waiting position; when the cop is detected to be positioned at the waiting position, fixing the cop;
step 20), when the bobbin yarn is detected to be positioned at a winding working position, closing a positioning gate (12) of the winding working position, and fixing the bobbin yarn;
step 30) feeding yarn heads in cops to a yarn sucking position of a working unit of a winder for the working unit of the winder to grasp, splice and unwind;
step 40), if the unwinding is detected to be completed, opening a positioning gate (12) of a winding work position, and releasing the empty bobbin; if the wire breakage is detected, repeating the step 30);
the method is applied to a winder working unit (1) comprising a downdraw (11); the step 30) adopts a yarn feeding system which is independent of a control system of a working unit (1) of a winding machine; the yarn feeding system comprises a controller and a yarn feeding device, and the yarn feeding device is arranged below a working unit (1) of the bobbin winder;
the step 30) specifically comprises the following steps:
step 302), after receiving the yarn feeding signal, the controller generates an opening signal and sends the opening signal to the yarn feeding device;
step 303), after receiving the starting signal, the yarn feeding device moves the yarn head in the cop (2) positioned in the winding working position upwards to the yarn sucking position of the working unit (1) of the winding machine, and the yarn head is sucked into the lower yarn sucking piece (11) for the working unit (1) of the winding machine to grab, splice and unwind;
the yarn feeding system further comprises a first detection device, wherein the first detection device is used for detecting the action of the lower yarn sucking piece (11); the step 302) further includes:
step 301), when the first detection device detects the action of the lower yarn sucking piece (11), a yarn feeding signal is generated and sent to the controller;
the yarn feeding system further comprises a second detection device (33), the step 30) further comprises:
step 304), when the second detection device (33) detects that the yarn head is positioned at the yarn sucking position of the working unit (1) of the winder, a feeding stopping signal is generated, and the feeding stopping signal is sent to the controller;
after receiving the feeding stopping signal, the controller generates a closing signal and sends the closing signal to the yarn feeding device;
after receiving the closing signal, the yarn feeding device stops working;
alternatively, the step 30) further includes:
step 304), the controller waits for a second preset delay time after receiving the yarn feeding signal, generates a closing signal and sends the closing signal to the yarn feeding device;
after receiving the closing signal, the yarn feeding device stops working.
2. A feeding method of a cone winder according to claim 1, characterized in that the first detecting means is adapted to detect the downward swinging motion of the lower suction member (11);
said step 301) comprises: when the first detection device detects that the yarn sucking-down piece (11) swings downwards, a yarn feeding signal is generated, and the yarn feeding signal is sent to the controller.
3. The feeding method of a winder according to claim 1, wherein the first detection device is used for detecting the movement of a driving member for driving the yarn sucking-down member (11) to act in the working unit (1) of the winder;
said step 301) comprises:
when the first detection device detects that the driving piece rotates clockwise or anticlockwise, a yarn feeding signal is generated, and the yarn feeding signal is sent to the controller.
4. A feeding method of a cone winder according to claim 1, characterized in that the first detecting means is adapted to detect an upward swinging movement of the lower suction member (11);
said step 301) comprises: when the first detection device detects that the lower yarn sucking piece (11) swings upwards, a yarn feeding signal is generated, and the yarn feeding signal is sent to the controller;
the step 302) includes: after receiving the yarn feeding signal, the controller waits for a first preset delay time, generates an opening signal and sends the opening signal to the yarn feeding device.
5. The method of any one of claims 1-4, wherein the first detection device is a photoelectric proximity switch, an inductive proximity switch, a mechanical pressure switch, a pressure sensor, or a magnetic sensor.
6. A cone winder feeding method according to claim 1, characterized in that the yarn feeding device comprises a first air blowing member (31), the first air blowing member (31) being located below the cop (2);
the step 303) specifically includes:
the first blowing piece (31) is started, the yarn head in the cop (2) is blown upwards to the yarn sucking position of the working unit (1) of the winder, and the yarn head is sucked into the lower yarn sucking piece (11) for the working unit of the winder to grab, splice and unwind.
7. The feeding method of a winder according to claim 6, characterized in that the yarn feeding device further comprises a traction member (32), the traction member (32) being located between the winder working unit (1) and the cop (2); the traction piece (32) comprises a body (321), and the body (321) comprises a threading cavity (3211) penetrating through the body;
the step 303) specifically includes:
starting a first blowing part (31), wherein the first blowing part (31) blows yarn heads in cops upwards out of yarn nozzles and enters a threading cavity (3211) of a traction part (32), the yarn heads continuously pass through the threading cavity (3211) upwards to reach the yarn sucking position of a working unit (1) of a winder, and the yarn heads are sucked into a lower yarn sucking part (11) for the working unit of the winder to grab, splice and unwind.
8. The feeding method of a winder according to claim 6, characterized in that the yarn feeding device further comprises a traction member (32) and a second blowing member, the traction member (32) being located between the winder working unit (1) and the cop (2); the traction piece (32) comprises a body (321), and the body (321) comprises a threading cavity (3211) penetrating through the body; an air inlet (3212) and an air outlet (3213) are formed in the body (321), the air inlet (3212) is communicated with the air outlet (3213), and the air outlet (3213) is communicated with the threading cavity (3211); the second blowing piece is arranged at the air inlet (3212);
the step 303) specifically includes:
the first air blowing piece (31) and the second air blowing piece are started, the first air blowing piece (31) blows yarn heads in cops upwards out of yarn pipe openings and enters a threading cavity (3211) of the traction piece (32);
the second blowing piece blows yarn heads in the threading cavity (3211) upwards out of the threading cavity (3211) to reach the yarn sucking position of the working unit (1) of the winder, and the yarn heads are sucked into the lower yarn sucking piece (11) for grabbing, splicing and unwinding of the working unit of the winder.
9. The feeding method of the bobbin winder according to claim 8, wherein the air outlet (3213) is positioned on the inner wall of the lower part of the threading cavity (3211), and the air outlet direction of the air outlet (3213) is inclined upwards.
10. The feeding method of a winding machine according to claim 8 or 9, wherein the bottom opening of the threading cavity (3211) is trumpet-shaped.
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