CN116791248A - Automatic splicing device and method for fabric ring spinning machine - Google Patents
Automatic splicing device and method for fabric ring spinning machine Download PDFInfo
- Publication number
- CN116791248A CN116791248A CN202310268674.9A CN202310268674A CN116791248A CN 116791248 A CN116791248 A CN 116791248A CN 202310268674 A CN202310268674 A CN 202310268674A CN 116791248 A CN116791248 A CN 116791248A
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- blowing
- spinning machine
- spool
- blowing device
- ring spinning
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- 238000007378 ring spinning Methods 0.000 title claims abstract description 79
- 239000004744 fabric Substances 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 22
- 238000007664 blowing Methods 0.000 claims abstract description 299
- 239000004753 textile Substances 0.000 claims abstract description 11
- 230000001154 acute effect Effects 0.000 claims abstract description 9
- 239000002657 fibrous material Substances 0.000 claims abstract description 5
- 238000009987 spinning Methods 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 125000004122 cyclic group Chemical group 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 2
- 206010020112 Hirsutism Diseases 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
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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
- B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention relates to an automatic splicing device of a textile ring spinning machine, comprising a bottom circumferential blowing device with three blowing nozzles. The bottom circumferential blowing device is arranged concentrically around the main shaft of the fabric ring spinning machine, close to the spool. Each blowing nozzle blows air at an upward angle toward the spool. The automatic splicing apparatus further comprises an additional blowing device arranged above the bottom circumferential blowing device, having a plurality of blowing nozzles. Two blowing nozzles blow air at an acute angle to the upper direction of the yarn tube, the other blowing nozzle pointing to the yarn guide area. The bottom circumferential blowing device and the additional blowing device blow respectively, separate the tail end of the broken yarn from the spool, and lift the broken yarn end upwards towards the drafting zone of the ring spinning machine, so that the broken yarn end can be effectively and automatically spliced with the drafted fiber material.
Description
Technical Field
The present invention relates generally to textile spinning machines, and more particularly to an automatic yarn splicing apparatus for a textile ring spinning machine. More particularly, the present invention relates to an improved broken yarn lifting device in an automatic splicing device for a textile ring spinning machine.
Background
In textile mills, ring spinning machines are key machines for producing continuous yarn. Typically, a textile roving material produced by a roving frame is fed into a ring spinning frame. The roving material is first drawn and twisted and then wound onto a package called a spool or yarn tube. In this spinning process, yarn breakage in the ring spinning machine is a common and frequent problem, requiring continuous attention from the manual work. Today, broken yarns remain a major drawback of ring spinning machines. Traditionally, a large number of workers are used to continuously monitor ring spinning machines, and such machines typically include 1600 spindles, typically exceeding 75 meters in length throughout the machine frame. In addition to periodic monitoring, broken yarns must be spliced together and then the corresponding yarn spinning sequence restarted to avoid wasting yarn. Since such ring spinning machines are installed very compactly in spinning mills, the operator monitors the ring spinning machine all day in the gangway, and therefore, a very cumbersome operation.
To overcome the above problems, automatic splicing apparatuses are being developed. The automatic splicing device is in the form of a movable trolley with wheels/rails/guides. The splicing device comprises a built-in driving unit, a sensing unit and a supporting unit. The automatic splicing assembly comprises a plurality of modules for picking up broken yarns on the spool, inserting the yarns into the yarn guide, sucking the yarns, splicing the yarns in the drafting zone, and the like. The yarn picking module comprises an air blowing device fixedly arranged on the automatic splicing device.
Such a method and device for pneumatically separating and sucking up broken ends is disclosed in US patent No. 4132057. According to this patent, the spindle is intermittently rotated, and at the same time, the blowing of broken yarn using three blowing nozzles with single holes acts to effectively separate broken yarn ends. However, the above method does not in practice reliably lift the broken yarn from the tube.
In another known solution described in german patent DE3012210, a complicated brush or tangential blow nozzle is used in addition to the axial blow nozzle to separate the broken yarn from the spool. However, the above solutions have not been successful in lifting broken yarn ends from the spool. In addition, the above solution involves a complex structural layout, requiring separate installation and execution arrangements.
All known yarn lifting schemes are not capable of lifting or separating a fine yarn (e.g. a yarn with Ne > 60) from a spool. The failed attempts described above tend to further increase the number of attempts to use high intensity compressed air, resulting in longer time consuming than previous cycles. The above number of attempts also causes an increase in the consumption of compressed air, which in turn causes a problem of an increase in the operation cost. In addition, the long-time blowing of the surface of the bobbin also causes a decrease in yarn quality, such as an increase in yarn hairiness, a defect in twist, and generation of neps. If the fine yarn is blown off the spool by high pressure air blowing, the yarn already wound up on the spool will also come loose. In all known broken yarn lifting devices, the splicing efficiency of the automatic splicing device is very low. Therefore, the low efficiency of the automatic splicing apparatus affects the overall production efficiency of the ring spinning machine of the spinning mill.
There is a need for an improved yarn lifting device for separating yarns of all counts from a spool.
The invention provides an improved yarn lifting device for an automatic splicing device of a ring spinning machine, so that broken yarn ends can be successfully separated from a spool, and the structure arrangement is simple and reliable.
Disclosure of Invention
The invention provides an automatic splicing unit for a fabric ring spinning machine. When the ring spinning machine breaks yarn, the automatic splicing device assists in yarn splicing operation. In order to successfully splice broken yarn ends, it is necessary to properly pick up and separate the broken yarn ends.
In order to achieve this, the invention provides a bottom circumferential blowing device and a top additional blowing device with at least three blowing members in an automatic splicing device. Preferably, the three blowing members in the bottom circumferential blowing apparatus each comprise three apertures.
The number of apertures may also be more or less than three. The diameter of the orifice is preferably 2 mm. The three blowing members of the bottom circumferential blowing means may be operated in any order, for example, only two blowing members at a time, or only one blowing member at a time, or all three blowing members and the top additional blowing means at a time.
The bottom blowing means may be operated in any cyclic sequence, either clockwise or counter-clockwise one by one. Any one of the three air blowing members can be opened and closed according to the yarn lifting requirement. The additional blowing means comprise at least two blowing nozzles, preferably three, distributed towards the conduit above a certain height from the bottom circumferential blowing means.
The bottom circumferential blowing device is placed in front of the endless track, slightly below the endless track, so as to blow air from the plurality of apertures to the spool and lift the broken yarn end from the spool. The additional blowing means are placed in the area close to the circular track above a certain height of the bottom blowing means to allow the additional blowing means to blow air tangentially towards the conduit.
The additional blowing device has three blowing nozzles, two of which are directed towards the surface of the spool at a relatively high distance from the circular track, the orifices of said blowing nozzles being directed at an acute angle towards the upper direction of the spool or perpendicular to the vertical axis of the spool, the other blowing nozzle being directed towards the yarn guide area. An additional mouthpiece is mounted in the housing of the automatic splicing device. The mouthpiece of the additional blowing means may be any size and diameter mouthpiece. The inner diameter of the mouthpiece is preferably between 2 and 4 mm and the outer diameter is preferably between 4 and 6 mm. All blowing members of the bottom circumferential blowing device and all blowing nozzles of the additional blowing device can be provided with air in a different sequence in any cyclic sequence, thereby successfully lifting the broken yarn of the fine count. The three blowers in the additional blowing device may also be operated in any order, such as operating only two blowers at a time or operating only one blower at a time or operating all three blowers at a time. The three blowers in the additional blowing device may be operated in any cyclic sequence. In the additional blowing device, one of the blowing heads is capable of both lifting the broken yarn and rotating the yarn guide by blowing compressed air during the threading operation of the splicing procedure.
According to one embodiment of the invention, the additional blowing nozzles are directed against the respective surface of the spool above the height of the spool. The mouthpiece is adjustable in both the horizontal and vertical directions and is deflectable to blow anywhere on and around the surface of the conduit at any angle. According to the invention, the air flow blown by the three bottom peripheral blowing devices with three orifices and the additional blowing device with three blowing nozzles can successfully lift the broken yarn end from the spool. The bottom peripheral blowing device and the additional blowing device are connected to a control unit with a man-machine interface and can be controlled to operate in any order. The timing and sequence of the air flows, the air flow rate/air pressure and the speed control of all blowing members can be varied by the control unit according to the broken yarn lifting requirements and the yarn count. The several operating parameters and the sequence of the blowing members and the blowing nozzles can be stored in the control unit and can be selected in the display unit according to the requirements of each spinning machine as well as the yarn count and the yarn type. After the lifting is successful, the separated yarn ends are moved into a top suction tube adjacent the drafting unit and held therein until spliced with the roving material fed from the drafting zone.
In one aspect of the present invention, an automatic splicing apparatus for a fabric ring spinning machine is provided. The automatic splicing apparatus includes a bottom peripheral blowing apparatus having at least three blowing nozzles, each having a plurality of orifices. The bottom circumferential blowing device is arranged concentrically around the main shaft of the spinning ring frame, close to the spool. Each blowing nozzle blows air through the orifice at an upward angle to the conduit. The automatic splicing apparatus further comprises an additional blowing device arranged above the bottom circumferential blowing device, having a plurality of blowing nozzles. At least two blowing nozzles blow air towards the spool of the ring spinning machine. Each bottom circumferential blowing device and the additional blowing device can blow air independently, separate the broken yarn end from the spool of the ring spinning machine, and lift the broken yarn end above the drafting zone of the ring spinning machine so as to perform effective automatic yarn splicing with the drafted fiber materials.
According to the invention, the additional blowing device has a plurality of blowing nozzles, two of which blow at an acute angle to the upper direction of the spool and the other of which is directed to the yarn guide region of the textile ring spinning machine.
According to the invention, each bottom peripheral blowing device and the additional blowing device blow simultaneously to separate the broken yarn ends from the tube of the ring spinning machine.
According to the invention, each bottom circumferential blowing device and the additional blowing device blow periodically to separate the broken yarn ends from the spool of the ring spinning machine.
According to the invention, each bottom circumferential blowing device and the additional blowing device blow air with a vortex.
According to the invention, two blowing nozzles blow air in a direction perpendicular to the vertical axis of the ring spinning machine, and the other blowing nozzle blows air towards the yarn guide area of the ring spinning machine.
According to the invention, each bottom circumferential blowing device and the additional blowing device blow the yarn tube of the ring spinning machine upwards along the tangential line and the axis.
According to the invention, the blowing nozzles of the additional blowing device are directed against the respective surface of the conduit above the height of the conduit. The blowing nozzle can be adjusted in the horizontal and vertical directions and can deflect any angle to blow air on and around the surface of the conduit
According to the invention, the bottom circumferential blowing device and the additional blowing device can be connected to a control unit with a man-machine interface.
According to the invention, several operating parameters, the timing and sequence of the supply of the air flow, the air flow rate or air pressure and the speed control of the blowing nozzles of the bottom circumferential blowing device and of the blowing nozzles of the additional blowing devices are stored in the control unit and can be selected in the display unit according to the requirements of each spinning machine and the yarn count and yarn type.
According to the invention, the nozzle of the bottom circumferential blowing device and the nozzle of the additional blowing device lift the fine yarn, preferably greater than 60Ne, from the spool of the ring spinning machine.
According to the invention, the blowing nozzles of the bottom peripheral blowing device and the blowing nozzles of the additional blowing devices are blown one by one in different sequences, in any cyclic manner, to lift the fine yarn from the spool of the ring spinning machine.
According to the invention, the inner diameter of the mouthpiece is preferably in the range of 2 to 4 mm, and the outer diameter of the mouthpiece is preferably in the range of 4 to 6 mm.
According to the invention, the additional blowing device can be moved vertically in synchronization with the endless track of the ring spinning machine.
According to the invention, the additional blowing means are moved forward by means of a driving means comprising at least one of an electric cylinder, an air cylinder or the like.
According to the invention, the aperture diameter of the bottom circumferential blowing means is preferably 2 mm.
In another aspect of the invention, a method of separating and lifting broken yarn from a spool of a textile ring spinning machine using an automatic splicing apparatus is provided. The method comprises the step of blowing air from the bottom of the automatic splicing device to two side blowing nozzles of the blowing device in a certain time. The method further comprises the step of blowing air from a plurality of blowing nozzles of an additional blowing device of the automatic splicing device towards the spool for a certain time. The method further comprises the step of blowing air from a blowing nozzle of a bottom circumferential blowing device of the automatic splicing device to the line pipe for a certain time. The method further comprises the step of periodically applying and releasing a spindle brake of the spool of the ring spinning machine over a period of time. The method comprises activating an additional blowing device and blowing two blowing nozzles at an acute angle to the upper direction of the spool, the other blowing nozzle being directed to the yarn guide area on the ring of the ring spinning machine. The bottom circumferential blowing device and the additional blowing device are used for blowing air so as to separate the broken yarn end from the spool and lift the broken yarn end upwards towards the drafting zone of the ring spinning machine, thereby allowing the automatic splicing of the yarns by effectively applying the drafting fiber materials.
According to the invention, each bottom peripheral blowing device and the additional blowing device blow simultaneously to separate the broken yarn ends from the tube of the ring spinning machine.
According to the invention, each bottom circumferential blowing device and the additional blowing device blow periodically to separate the broken yarn ends from the spool of the ring spinning machine.
According to the invention, each bottom circumferential blowing device and the additional blowing device blow air with a vortex.
According to the invention, two blowing nozzles blow air in a direction perpendicular to the vertical axis of the ring spinning machine, and the other blowing nozzle blows air towards the yarn guide area of the ring spinning machine.
According to the invention, each bottom circumferential blowing device and the additional blowing device blow the yarn tube of the ring spinning machine upwards along the tangential line and the axis.
According to the invention, several operating parameters, the timing and sequence of the supply of the air flow, the air flow rate or air pressure and the speed control of the blowing nozzles of the bottom circumferential blowing device and of the blowing nozzles of the additional blowing devices are stored in the control unit and can be selected in the display unit according to the requirements of each spinning machine and the yarn count and yarn type.
According to the invention, the nozzle of the bottom circumferential blowing device and the nozzle of the additional blowing device lift the fine yarn, preferably greater than 60Ne, from the spool of the ring spinning machine.
According to the invention, the blowing nozzles of the bottom circumferential blowing device and the blowing nozzles of the additional blowing devices blow one by one in a different sequence, in any cyclic manner, to lift the fine yarn from the spool of the ring spinning machine.
Other aspects and advantages of the present invention will become apparent from the following description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the invention.
Drawings
Fig. 1 shows a perspective view of a bottom circumferential blowing device and an additional blowing device of an automatic splicing device with a ring spinning machine spool according to the present invention; in the present invention, the broken yarn will be lifted.
FIG. 2 is a side view showing a bottom circumferential blowing device and an additional blowing device of the automatic splicing device attached with a bobbin of a ring spinning machine according to the present invention; in the present invention, the broken yarn will be lifted.
Fig. 3 shows a perspective view of a bottom circumferential blowing device in an automatic splicing device of a ring spinning machine according to an embodiment of the present invention.
Fig. 3a shows a top view of a bottom circumferential blowing device in an automatic splicing device of a ring spinning machine according to one embodiment of the present invention.
Detailed Description
Referring to fig. 1 to 3, the automatic splicing device (1) of the present invention comprises a bottom circumferential blowing device (2) and an additional blowing device (3). The automatic splicing device (1) moves longitudinally along the channel of the ring spinning machine (4). The ring spinning machine (4) is capable of winding yarn onto a spool mounted on a spinning spindle, namely said spool (5). When a yarn breakage occurs during spinning, the broken yarn end is caught on the rotating spool (5). In order to be able to splice the yarns, the yarn ends must be separated from the spool (5).
The automatic splicing device comprises a bottom circumferential blowing device (2) arranged in the automatic splicing device. With reference to fig. 3 and 3a, the bottom peripheral blowing device (2) is placed concentrically around the spindle, at a position below the circular track (8) at least three blowing nozzles (6 a,6b,6 c) blowing around the spool (5). The blowing means in the bottom circumferential blowing means (2) comprise three apertures (7), each oriented at an acute angle towards the conduit (5). The diameter of the orifice is preferably 2 mm.
As shown in fig. 1 and 2, the automatic splicing apparatus according to the present invention includes an additional blowing device (3) installed in the automatic splicing apparatus (1). The additional blowing device (3) is moved forward by a drive device. The driving means is at least one of an electric cylinder, an air cylinder or the like. Furthermore, the additional blowing device (3) can be moved vertically in synchronization with the annular rail (8) of the ring spinning machine (4). The controlled movement of the additional blowing device (3) with respect to the endless track (8) is performed by suitable sensors and actuators, preferably of the electric type. The actuator may also be one of pneumatic, hydraulic, linear, etc. The additional blowing means (3) have at least two, preferably three, substantially cylindrical elongated blowing nozzles (9 a,9b,9 c). The three blowing heads (9 a,9b,9 c) have the effect of lifting the broken yarn off the joint (5) by blowing compressed air tangentially and axially towards the spool (5) with the broken yarn end. As an embodiment, additional blowing nozzles (9 a,9b,9 c) are provided on the respective surface of the line pipe (5) above the level of the line pipe (5); the blowing nozzles (9 a,9b,9 c) can be adjusted in any direction, both horizontally and vertically, and can be biased to any angle, blowing towards the conduit (5) at any point on and around the conduit surface. In an additional blowing device (3) with three blowing nozzles (9 a,9b,9 c), two blowing nozzles (9 a,9 b) with orifices are directed towards the surface of the spool, the orifices of said blowing nozzles blowing air at an acute angle in an upward direction towards the spool (5) or in a direction perpendicular to the vertical axis of the spool (5); at a higher level than the endless track (8), the other blowing nozzle (9 c) is directed towards the movement area (10) of the endless carrier. The additional blowing nozzles (9 a,9b,9 c) are mounted in the housing (11) of the automatic splicing device (1). The mouthpiece of the additional blowing means may be of any size and diameter. The inner diameter of the mouthpiece (9) is preferably between 2 and 4 mm and the outer diameter is preferably between 4 and 6 mm. All blowing members (6 a,6b,6 c) of the bottom circumferential blowing device (2) and all blowing nozzles (9 a,9b,9 c) of the additional blowing device (3) are provided with air in different sequences in arbitrary circulation for successfully lifting the fine broken yarn from the spool (5) and also for simultaneously providing an air flow to the blowing nozzles. The three blowers (9 a,9b,9 c) in the additional blowing device (3) may be operated in any order, such as operating only two blowers at a time or operating only one blower at a time or operating all three blowers at a time. The blowing nozzle (9 c) of the additional blowing device (3) is directed towards the loop-shaped thread guide and also plays a role in blowing the loop (10) during the threading operation. After threading the yarn end into the yarn guide of the ring (10), the yarn held in the top suction tube is spliced with the yarn fed from the drafting zone of the ring spinning machine (4). Before the start of the splice, the spindle is braked, the broken yarn end is lifted from the spool (5) and held in the top suction tube. The top suction tube is then moved upwards in the vicinity of the drawing zone of the ring spinning machine (4) for subsequent splicing with the transported fibre.
Referring to fig. 3, the bottom circumferential blowing device (2) is concentrically arranged around the spool (5) at a position slightly below the circular track (8) near the ring spinning machine (4). An additional blowing device (3) with three blowing nozzles (9 a,9b,9 c) is arranged in front of the spool (5) containing the broken yarn ends near the circular track (8) above a certain level of the bottom blowing device (2). Broken yarns are often entangled with the spool (5) at any portion of the spool (5) from top to bottom, which is not accurately determined. The bottom peripheral blowing means (2) are provided as separate blowing members, preferably three separate blowing members (6 a,6b,6 c), each having three holes (7) for taking air from the air source. The first blowing member (6 a) is placed in front of the spool (5) in a manner substantially parallel to the length of the frame of the ring spinning machine. The second (6 b) and third (6 c) blowing members are placed in a substantially perpendicular manner to the length of the frame of the ring spinning machine, as shown in fig. 3, each blowing member being placed circumferentially on both sides of the spool (5). According to the invention, each bottom blowing element (2) and the additional blowing element (3) simultaneously or periodically provide an air/vortex flow, separating the yarn end conduit (5) and lifting it above the drawing zone so as to be able to effectively automatically splice with the drawn fibrous material.
According to one embodiment of the invention, the blowing means (6 a,6b,6 c) are combined with additional blowing means (3) and operate in the following sequence to successfully separate and lift broken yarn ends from the spool (5). First, the main shaft brake is applied at a predetermined time. Then, the spindle stops rotating. During this time, the second air-blowing means (6 b) and the third air-blowing means (6 c) (side air-blowing) are combined with the additional air-blowing means (3) to perform air-blowing in a time shorter than one second. Subsequently, the spindle brake is released at a predetermined time, and the spindle starts rotating. During this time, the first air blowing means (6 a) (front air blowing) blows air through the plurality of holes (7) in a time shorter than one second. The additional blowing means (3) are activated simultaneously with each of the possible procedures described above. The additional blowing device (3) has at least three blowing nozzles (9 a,9b,9 c) with an air source for blowing air towards the conduit (5). The additional blowing means (3) are arranged in the region close to the circular track (8) so that it can blow air towards the conduit (5) in an upward direction. The additional blowing means have three blowing nozzles (9 a,9b,9 c), two of which (9 a,9 b) are directed towards the surface of the conduit, the orifices of said nozzles blowing at an acute angle in an upward direction towards the conduit (5) or in a direction perpendicular to the vertical axis of the conduit (5); at a higher level than the endless track (8), the other blowing nozzle (9 c) is directed towards the movement area (10) of the endless carrier. The additional blowing nozzles (9 a,9b,9 c) are mounted in the housing (11) of the automatic splicing device (1). All blowing members (6 a,6b,6 c) and blowing nozzles (9 a,9b,9 c) are provided with air in different sequences and in arbitrary circulation to successfully lift broken yarns, in particular broken yarns of fine yarn greater than 60Ne, from the spool (5).
The bottom peripheral blowing device (2) and the additional blowing device (3) are connected to a control unit with a man-machine interface and can be controlled to operate in any order. The timing and sequence of the air flows, the air flow rate/air pressure and the speed control of all blowing members can be varied by the control unit according to the broken yarn lifting requirements and the yarn count. The several operating parameters and the sequence of the blowing members and the blowing nozzles can be stored in the control unit and can be selected in the display unit according to the requirements of each spinning machine as well as the yarn count and the yarn type.
The above action causes the yarn breaking end to be separated from the spool (5) and directed upward. The broken yarn end is placed in a suction device at the top of an automatic splicing device in front of the drafting zone of the ring spinning machine.
The above procedure allows the broken yarn end to be separated from the rotating spool wherever it is from top to bottom and successfully directed to the upper draft zone. In this way, the broken yarn is lifted so as to be able to automatically splice with the drafted material. The above sequence is performed simultaneously each time a yarn break occurs, regardless of the position of the endless track.
The above-described automatic splicing device for a ring spinning machine thus provides an effective broken yarn end lifting device for fine yarns.
All changes, modifications and variations that come within the meaning and range of equivalents are to be regarded as being within the scope and spirit of the invention in view of the disclosure.
Claims (25)
1. An automatic splicing device (1) for a textile ring spinning machine (4), characterized in that the automatic splicing device (1) comprises:
the bottom circumferential blowing device (2) has at least three blowing nozzles, and when there are three blowing nozzles (6 a,6b,6 c), each of the blowing nozzles (6 a,6b,6 c) has a plurality of orifices (7), and the bottom circumferential blowing device (2) is concentrically arranged around the main shaft of the fabric ring spinning machine (4) and near the spool (5), and each of the blowing nozzles (6 a,6b,6 c) blows air to the spool (5) at an upward angle through the orifices;
an additional blowing device (3) is arranged above the bottom circumferential blowing device (3) and comprises a plurality of blowing nozzles (9 a,9b,9 c), wherein at least two blowing nozzles (9 a,9 b) blow air to a spool (5) of the ring spinning machine;
the bottom circumferential blowing device (2) and the additional blowing device (3) are used for blowing air to separate the broken yarn end from the spool (5) of the ring spinning machine (4) and lift the broken yarn end upwards to the drafting zone of the ring spinning machine (4) so as to carry out effective automatic yarn splicing with the drafted fiber material.
2. The automatic splicing device (1) according to claim 1, wherein the additional blowing device (3) has a plurality of blowing nozzles, of which two blowing nozzles (9 a,9 b) blow at an acute angle towards the upper direction of the spool and the other blowing nozzle (9 c) is directed towards the yarn guide area on the ring (10) of the textile ring spinning machine (4) when there are three blowing nozzles (9 a,9b,9 c).
3. The automatic splicing device (1) according to claim 1, wherein the bottom circumferential blowing device (2) and the additional blowing device (3) blow simultaneously to separate the broken yarn ends from the spool (5) of the ring spinning machine (4).
4. The automatic splicing device (1) according to claim 1, wherein the bottom circumferential blowing device (2) and the additional blowing device (3) blow cyclically to separate the broken yarn ends from the spool (5) of the ring spinning machine (4).
5. The automatic splicing device (1) according to claims 1-4, wherein both the bottom circumferential blowing means (2) and the additional blowing means (3) blow air with a vortex.
6. The automatic splicing device (1) according to claims 1-5, wherein two of the blowing nozzles (9 a,9 b) blow in a direction perpendicular to the vertical axis of the spool and the other blowing nozzle (9 c) is directed towards the yarn guide area on the ring (10) of the fabric ring spinning machine (4).
7. The automatic splicing device (1) according to claims 1-6, wherein the bottom circumferential blowing device (2) and the additional blowing device (3) both blow the spool (5) of the ring spinning machine (4) upwards along a tangent line and an axis.
8. The automatic splicing device (1) according to claims 1 and 2, wherein the blowing nozzles (9 a,9b,9 c) of the additional blowing device (3) face the respective surface of the line pipe (5) above the level of the line pipe (5). The blowing nozzles (9 a,9b,9 c) are adjustable in both horizontal and vertical direction and are biased to blow air at any angle to anywhere on and around the surface of the conduit (5).
9. The automatic splicing device (1) according to claims 1 and 2, wherein the bottom circumferential blowing device (2) and the additional blowing device (3) are connected to a control unit with a man-machine interface.
10. The automatic splicing device (1) according to claim 9, wherein several operating parameters, the sequence timing and sequence of the supply of the air flow, the air flow rate or air pressure and the speed control of the blowing nozzles (6 a,6b,6 c) of the bottom circumferential blowing device (2) and the blowing nozzles (9 a,9b,9 c) of the additional blowing device (3) are stored in the control unit and can be selected in the display unit according to the requirements of each spinning machine and the yarn count and yarn type.
11. The automatic splicing device (1) according to claims 1 and 2, wherein the blowing nozzles (6 a,6b,6 c) of the bottom circumferential blowing device (2) and the blowing nozzles (9 a,9b,9 c) of the additional blowing device (3) lift fine yarns larger than 60Ne from the spool (5) of the ring spinning machine (4).
12. The automatic splicing device (1) according to claims 1 and 2, wherein the blowing nozzles (6 a,6b,6 c) of the bottom circumferential blowing device (2) and the blowing nozzles (9 a,9b,9 c) of the additional blowing device (3) are fed with air one by one in a clockwise or counter-clockwise direction in any cyclic sequence for separating the broken yarn ends from the yarn tube (5) of the ring spinning machine (4).
13. The automatic splicing device (1) according to claim 2, wherein the inner diameter of the mouthpiece (9 a,9b,9 c) is between 2 and 4 mm and the outer diameter of the mouthpiece (9 a,9b,9 c) is between 4 and 6 mm.
14. The automatic splicing device (1) according to claim 1, wherein the additional blowing device (3) is vertically movable in synchronization with the ring rail (8) of the ring spinning machine.
15. The automatic splicing device (1) according to claim 1, wherein the additional blowing means (3) are moved forward by means of driving means comprising at least one of an electric cylinder, an air cylinder or the like.
16. The automatic splicing device (1) according to claim 1, wherein the diameter of the orifice (7) of the bottom circumferential blowing device (2) is 2 mm.
17. A method for separating and lifting a broken yarn end from a spool (5) of a textile ring spinning machine (4) using an automatic splicing device (1), characterized by comprising:
blowing air to the spool (5) from two side blowing nozzles (6 b,6 c) of the bottom circumferential blowing device (2) of the automatic splicing device (1) within a certain time;
blowing air into the line pipe (5) from a plurality of blowing nozzles (9 a,9b,9 c) of an additional blowing device (3) of the automatic splicing device (1) within a certain time;
blowing air from a blowing nozzle (6 a) of the bottom circumferential blowing device (2) of the automatic splicing device (1) to the spool (5) within a certain time;
-applying and releasing a spindle brake of a spool (5) of a ring spinning machine (4) during a certain time;
the additional blowing device (3) blows air to the spool (5) in the following way: two blowing nozzles (9 a,9 b) blow air at an acute angle towards the upper direction of the spool (5), the other blowing nozzle (9 c) being directed towards the yarn guide area on the ring (10) of the fabric ring spinning machine (4);
the bottom circumferential blowing device (2) and the additional blowing device (3) are either supplied with air in order to separate the broken yarn end from the spool (5) and to lift the broken yarn end upwards towards the drafting zone of the ring spinning machine (4) for effective automatic yarn splicing with the drafted fibre material.
18. Method according to claim 17, wherein the bottom peripheral blowing device (2) and the additional blowing device (3) blow simultaneously to separate the broken yarn ends from the spool (5) of the ring spinning machine.
19. Method according to claim 17, wherein the bottom peripheral blowing device (2) and the additional blowing device (3) blow cyclically to separate the broken yarn ends from the yarn tube (5) of the ring spinning machine (4).
20. Method according to claims 17-19, wherein both the bottom circumferential blowing means (2) and the additional blowing means (3) blow air with a vortex.
21. Method according to claims 17-19, wherein two of the blowing nozzles (9 a,9 b) blow in a direction perpendicular to the vertical axis of the spool (5), the other blowing nozzle (9 c) being directed towards the yarn guide area on the ring (10) of the fabric ring spinning machine.
22. Method according to claim 17, wherein the bottom circumferential blowing device (2) and the additional blowing device (3) both blow the yarn tube (5) of the ring spinning machine (4) upwards along a tangent and an axis.
23. Method according to claim 17, wherein several operating parameters, the timing and sequence of the sequence of providing the air flow, the air flow rate or air pressure and the speed control of the blowing nozzle of the bottom circumferential blowing device (2) and the blowing nozzle of the additional blowing device (3) are stored in the control unit and can be selected in the display unit according to the requirements of each spinning machine and the yarn count and yarn type.
24. A method according to claim 17, wherein the blowing nozzle of the bottom circumferential blowing device (2) and the blowing nozzle of the additional blowing device (3) lift a fine yarn of more than 60Ne from the spool (4) of the ring spinning machine.
25. Method according to claim 17, wherein the blowing nozzles of the bottom circumferential blowing device (2) and the blowing nozzles of the additional blowing device (3) are fed with air one by one in a clockwise or counter-clockwise direction in any cyclic sequence for separating the yarn breaking tips from the yarn tube (5) of the ring spinning machine (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN202241015703 | 2022-03-22 | ||
| IN202241015703 | 2022-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116791248A true CN116791248A (en) | 2023-09-22 |
Family
ID=85556495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310268674.9A Pending CN116791248A (en) | 2022-03-22 | 2023-03-17 | Automatic splicing device and method for fabric ring spinning machine |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4249655A1 (en) |
| CN (1) | CN116791248A (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2543767A1 (en) | 1975-10-01 | 1977-04-14 | Zinser Textilmaschinen Gmbh | PROCESS AND DEVICE FOR PNEUMATICALLY RELEASING AND SUCTIONING A BROKEN END OF THREAD |
| DE3012210A1 (en) | 1980-03-28 | 1981-10-08 | Zinser Textilmaschinen Gmbh, 7333 Ebersbach | Method of detaching broken thread ends from thread spool - using intermittent turning process together with axial blowing directed at thread |
| DE3930935A1 (en) * | 1989-09-15 | 1991-03-28 | Zinser Textilmaschinen Gmbh | METHOD AND DEVICE FOR PNEUMATICALLY DETACHING A BROKEN THREAD END FROM THE WINDING CONE OF A THREAD WINDING BODY |
| JPH07278975A (en) * | 1994-04-08 | 1995-10-24 | Ishikawa Seisakusho Ltd | Method for picking up yarn end of end broken bobbin in automatic piecing device of spinning frame |
| DE19501464C1 (en) * | 1995-01-19 | 1996-05-23 | Zinser Textilmaschinen Gmbh | Appts. for automatic elimination of yarn breakages in ring spinning machines |
| EP3556918B1 (en) * | 2018-04-20 | 2024-09-18 | Lakshmi Machine Works Ltd. | Yarn lifting arrangement for piecing unit and a method thereof |
-
2023
- 2023-03-08 EP EP23160704.5A patent/EP4249655A1/en active Pending
- 2023-03-17 CN CN202310268674.9A patent/CN116791248A/en active Pending
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| Publication number | Publication date |
|---|---|
| EP4249655A1 (en) | 2023-09-27 |
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