CN112239902A - Driving mechanism, device and method for automatic feeding stopping and re-feeding of roving - Google Patents
Driving mechanism, device and method for automatic feeding stopping and re-feeding of roving Download PDFInfo
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- CN112239902A CN112239902A CN201910686258.4A CN201910686258A CN112239902A CN 112239902 A CN112239902 A CN 112239902A CN 201910686258 A CN201910686258 A CN 201910686258A CN 112239902 A CN112239902 A CN 112239902A
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- 238000009987 spinning Methods 0.000 description 8
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
- D01H1/20—Driving or stopping arrangements
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Abstract
The invention discloses a driving mechanism, a device and a method for automatic feeding stopping and re-feeding of roving, which can realize automatic feeding stopping and re-feeding. The driving mechanism comprises a rotating shaft, a shifting device with a shifting arm and a yarn shoveling controller, wherein the shifting device is fixedly connected with the rotating shaft, the yarn shoveling controller comprises a base body provided with a hollow groove, a feeding stopping device and a re-feeding device, the rotating shaft penetrates through the hollow groove, and the shifting device is close to the surface of the base body; the feeding stopping device and the re-feeding device are respectively positioned on the base body and can be matched with the shifting arm, so that the yarn shoveling controller moves; in use, the yarn shoveling controller is movably connected to the external fixing member.
Description
Technical Field
The invention relates to the field of spinning equipment, in particular to a driving mechanism, a device and a method for automatic feeding stop and re-feeding of roving.
Background
After the spinning frame is additionally provided with the spinning broken end detection system, spinning state information such as spindle speed, broken ends and the like can be detected, and convenience of information management is provided for spinning spindle positions. The roving automatic stopping device is matched with a spun yarn broken end detection device. The automatic roving stopping device is controlled by the spun yarn broken end detection system, when the spindle position of the spinning frame is broken, the broken end detection system sends an instruction, and the automatic roving stopping device acts to cut off fed roving, so that the upper roller and the lower roller at the front after the broken end are prevented from being wound.
In the prior art, the automatic roving stopping and feeding device only has an automatic stopping and feeding function and does not have an automatic re-feeding function. The automatic feeding stopping function is generally realized in the following way: the broken end signal of the spun yarn controls an electromagnet of the yarn stopping device to enable a locking pin hook of a fixed yarn stopping and feeding shovel to be unhooked, the spring force pulls or pushes the yarn shoveling device to enter a position between an upper roller and a lower roller after the yarn shoveling device is pulled, so that automatic feeding stopping of the spun yarn is achieved, and when an operator rounds a joint after the spun yarn is stopped and fed, the operator manually drives a spring of the yarn shoveling device to enable the yarn stopping device to feed again. Therefore, the automatic roving stopping device is only a semi-automatic working device in practice. In the working mode of the automatic splicer, the workload of some operators is increased, but in the working mode of the automatic splicer, the automatic splicer needs to be additionally provided with a more complex additional re-feeding mechanism, so that on one hand, the manufacturing cost of the automatic splicer is increased, and meanwhile, the working efficiency of the automatic splicer is influenced.
Disclosure of Invention
The invention aims to provide a driving mechanism, a device and a method for automatic feeding stopping and re-feeding of roving, which can realize automatic feeding stopping and re-feeding.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
in a first aspect, the driving mechanism for automatic feeding stop and re-feeding of the rough yarn comprises a rotating shaft, a shifting device with a shifting arm and a yarn shoveling controller, wherein the shifting device is fixedly connected with the rotating shaft; the feeding stopping device and the re-feeding device are respectively positioned on the base body and can be matched with the shifting arm, so that the yarn shoveling controller moves; in use, the yarn shoveling controller is movably connected to the external fixing member.
With reference to the first aspect, as a first implementable technical solution, the number of the toggle arms is three or four, and the toggle arms are uniformly distributed along the circumferential direction of the toggle device.
With reference to the first aspect, as a second implementable technical solution, the feeding stopping device includes a feeding stopping driver and a feeding stopping collision rod, the feeding stopping driver is connected with the feeding stopping collision rod, a first through hole is formed in the base body, and the feeding stopping collision rod can pass through the first through hole; the re-feeding device comprises a re-feeding driver and a re-feeding collision rod, the re-feeding driver is connected with the re-feeding collision rod, a second through hole is formed in the base body, and the feeding stop collision rod can penetrate through the second through hole.
With reference to the first aspect, as a third implementable technical solution, the feeding stopping device includes a feeding stopping driving electromagnet, a first resetting device, and a feeding stopping rotating member whose fulcrum is fixed on the base body, and the feeding stopping driving electromagnet and the feeding stopping rotating member are located on the bottom surface of the base body; a feeding stopping empty groove is formed in the base body, a feeding stopping collision piece is arranged on the feeding stopping rotating piece, and the feeding stopping collision piece extends out of the feeding stopping empty groove; the first resetting device is used for resetting the feeding stopping rotating piece after rotating to an initial position; the re-feeding device comprises a re-feeding driving electromagnet, a second resetting device and a re-feeding rotating piece, wherein a fulcrum is fixed on the base body, and the re-feeding driving electromagnet and the re-feeding rotating piece are positioned on the bottom surface of the base body; the basal body is provided with a re-feeding empty groove, the re-feeding rotating piece is provided with a re-feeding touching piece, and the re-feeding touching piece extends out of the re-feeding empty groove; the second resetting device is used for resetting the rotated re-feeding rotating piece to the initial position.
With reference to the first aspect, as a fourth implementable technical solution, the feeding stopping device includes a feeding stopping rotating member whose fulcrum is fixed on the base body, and the feeding stopping rotating member is located on the bottom surface of the base body; a feeding stopping empty groove is formed in the base body, a feeding stopping collision piece is arranged on the feeding stopping rotating piece, and the feeding stopping collision piece extends out of the feeding stopping empty groove; the re-feeding device comprises a re-feeding rotating piece with a fulcrum fixed on the base body, and the re-feeding rotating piece is positioned on the bottom surface of the base body; the basal body is provided with a re-feeding empty groove, the re-feeding rotating piece is provided with a re-feeding touching piece, and the re-feeding touching piece extends out of the re-feeding empty groove; the driving mechanism also comprises a bidirectional driving electromagnet, and the bidirectional driving electromagnet is positioned on the bottom surface of the base body; the bidirectional driving electromagnet is opposite to the re-feeding rotating piece or the feeding stopping rotating piece; the re-feeding rotating piece and the feeding stopping rotating piece are respectively and movably connected with a connecting rod.
In a second aspect, the embodiment of the invention provides a roving automatic stopping and re-feeding device with a driving mechanism, which is characterized by comprising the driving mechanism, a yarn shoveling rod and a yarn shoveling device, wherein a base body of the yarn shoveling controller is connected with the yarn shoveling rod, and the yarn shoveling device is positioned in a cavity of the yarn shoveling rod.
In a third aspect, embodiments of the present invention provide a method for automatically stopping and re-feeding a roving, the method including:
starting the rotating shaft, and driving the shifting device to rotate by the rotating shaft;
receiving a feeding stopping signal, controlling the feeding stopping device to work, enabling a rotating shifting arm to touch the feeding stopping device, enabling the shifting arm to drive a yarn shoveling controller to move, enabling a yarn shoveling rod to drive a yarn shoveling device to rotate for one phase, enabling the yarn shoveling device to enter a back roller jaw, and cutting off roving feeding.
With reference to the third aspect, as a first implementable technical solution, the method further includes: and receiving a re-feeding signal, controlling the re-feeding device to work, enabling the rotary shifting arm to touch the re-feeding device, driving the yarn shoveling controller to move by the shifting arm, driving the yarn shoveling rod to rotate the yarn shoveling device by a phase, moving the yarn shoveling device out of the jaw of the back roller, and recovering roving feeding.
Compared with the prior art, the roving automatic stopping and re-feeding driving mechanism, device and method provided by the embodiment of the invention can realize automatic stopping and re-feeding. The driving mechanism of the embodiment of the invention comprises a rotating shaft, a shifting device with a shifting arm and a yarn shoveling controller. The yarn shoveling controller comprises a base body provided with a hollow groove, a stopping device and a re-feeding device, the rotating shaft penetrates through the hollow groove, and the shifting device is close to the surface of the base body. The stopping device and the re-feeding device are respectively positioned on the base body, and the stopping device and the re-feeding device can be matched with the shifting arm, so that the yarn shoveling controller moves. The shifting device is fixedly connected to the rotating shaft and rotates along with the rotating shaft. The yarn shoveling controller is used for being matched with the shifting arm of the shifting device, and automatic feeding stopping and re-feeding of the rough yarns are achieved. In use, the yarn shoveling controller is movably connected to the external fixing member. Like this, shovel contact between yarn controller and the toggle gear, when producing the effort, toggle gear fixed connection is all the time in the pivot, and shovel yarn controller removes under the effect of power, realizes re-feeding or stops feeding.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3a is a schematic view of the assembly of the toggle device and the rotating shaft according to the embodiment of the present invention;
FIG. 3b is an axial view of the toggle device and the rotating shaft according to the embodiment of the present invention;
FIG. 4 is a schematic diagram of a second structure according to the embodiment of the present invention;
FIG. 5 is a cross-sectional view of a second construction of an embodiment of the invention;
FIG. 6 is a schematic diagram of a third structure according to an embodiment of the present invention.
The figure shows that: the device comprises a rotating shaft 1, a toggle device 2, a toggle arm 201, a yarn shoveling controller 3, a base body 301, a feeding stopping empty slot 3011, a re-feeding empty slot 3012, a feeding stopping device 302, a feeding stopping driving electromagnet 3021, a feeding stopping rotating member 3022, a feeding stopping collision member 3023, a bidirectional driving electromagnet 3024, a re-feeding device 303, a re-feeding driving electromagnet 3031, a re-feeding rotating member 3032, a re-feeding collision member 3033, a connecting rod 304, a yarn shoveling rod 4, a yarn shoveling device 5 and a back roller jaw 6.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, fig. 3(a) and fig. 3(b), the driving mechanism for automatic stop and re-feed of roving according to the embodiment of the present invention includes a rotating shaft 1, a shifting device 2 with a shifting arm 201, and a yarn shoveling controller 3. The toggle device 2 is fixedly connected with the rotating shaft 1. The yarn shoveling controller 3 comprises a base body 301 provided with a hollow groove, a stopping device 302 and a re-feeding device 303. The shaft 1 passes through the hollow slot and the toggle device 2 is close to the surface of the base body 301. The feeding stop device 302 and the refeeding device 303 are respectively located on the base body 301, and the feeding stop device 302 and the refeeding device 303 can be adapted to the dial arm 201 so that the yarn shoveling controller 3 moves. In use, the yarn shoveling controller 3 is removably attached to the external fixture.
The driving mechanism of the embodiment can realize automatic feeding stopping and re-feeding of the roving. The toggle device 2 is fixedly connected to the rotating shaft 1 and rotates along with the rotating shaft 1. The yarn shoveling controller 3 is adapted to the shifting arm 201 of the shifting device 2, so that automatic feeding stopping and re-feeding of the roving are realized. Specifically, the yarn shoveling controller 3 includes a stopping device 302 and a refeeding device 303. The feeding stop device 302 and the refeeding device 303 are respectively located on the base body 301, and the feeding stop device 302 and the refeeding device 303 can be adapted to the dial arm 201 so that the yarn shoveling controller 3 moves. Because the position of the rotating shaft 1 is unchanged, the toggle device 2 fixedly connected to the rotating shaft 1 only rotates along with the rotating shaft 1, when the feeding stopping device 302 and the toggle arm 201 are contacted, the acting force between the feeding stopping device 302 and the toggle arm 201 moves to realize feeding stopping, and the toggle arm 201 is always connected to the rotating shaft 1. Similarly, when the re-feeding device 303 contacts the shifting arm 201, the force between the two causes the re-feeding device 303 to move, so that re-feeding is realized. In use, the yarn shoveling controller 3 is removably attached to the external fixture. Like this, shovel yarn controller 3 and 2 between contacts of toggle gear, when producing the effort, toggle gear 2 fixed connection all the time is in pivot 1, shovel yarn controller 3 removes under the effect of power, realizes refeeding or stops feeding. The driving mechanism of the embodiment realizes the re-feeding and feeding stopping functions.
In the above embodiment, the number of the toggle arms 201 is three or four, and the toggle arms are uniformly distributed along the circumferential direction of the toggle device 2. The number of toggle arms 201 may also be one, two, or other number. In the preferred embodiment, three or four are preferred, and the toggle arms 201 are uniformly distributed along the circumferential direction of the toggle device 2. The poking arms 201 are uniformly distributed, so that the action response time is equal after the electromagnet is electrified every time.
In the above embodiment, the feeding stopping device 302 is used for acting with the shifting device 2 to realize the roving feeding stopping function. The re-feeding device 303 is used for acting with the shifting device 2 to realize the function of re-feeding the roving. The feeding stop device 302 and the re-feeding device 303 can be in various structures. In the present embodiment, the following three structures are preferable.
The first structure is as follows: as shown in fig. 1 to 2, the feeding stopping device 302 includes a feeding stopping driver and a feeding stopping collision bar, the feeding stopping driver is connected with the feeding stopping collision bar, the base body 301 is provided with a first through hole, and the feeding stopping collision bar can pass through the first through hole.
The re-feeding device 303 comprises a re-feeding driver and a re-feeding collision rod, the re-feeding driver is connected with the re-feeding collision rod, a second through hole is formed in the base body 301, and the feeding stop collision rod can penetrate through the second through hole.
In the structure, the feeding stopping driver can drive the feeding stopping collision rod to move. The structure of the feeding stop driver can be various, such as an electromagnet, an electric cylinder, an air cylinder and the like. When the feeding stopping function needs to be realized, the feeding stopping driver drives the feeding stopping collision rod to move and extend out of the first through hole of the base body 301. When the toggle arms 201 rotate along with the rotating shaft 1, one toggle arm 201 contacts with the feeding stopping touch rod, and the acting force between the toggle arm 201 and the feeding stopping touch rod moves, so that the feeding stopping function is realized.
The re-feeding driver can drive the re-feeding collision rod to move. The structure of the re-feeding driver can be various, such as an electromagnet, an electric cylinder, an air cylinder and the like. When the re-feeding function needs to be realized, the re-feeding driver drives the re-feeding collision rod to move and extend out of the second through hole of the base body 301. When the toggle arms 201 rotate along with the rotating shaft 1, one toggle arm 201 contacts with the re-feeding collision rod, and the re-feeding collision rod moves by the acting force between the toggle arms 201 and the re-feeding collision rod, so that the re-feeding function is realized.
When the stop-feed collision bar extends out of the first through hole of the base body 301, the re-feed collision bar does not extend out of the second through hole of the base body 301. When the re-feeding collision rod extends out of the second through hole of the base body 301, the feeding stop collision rod does not extend out of the first through hole of the base body 301.
Preferably, in the first configuration, the stopping drive and the refeeding drive are electromagnets, respectively. The axis of the electromagnet is arranged in parallel with the axis of the rotating shaft 1. When the electromagnet is electrified, the iron core of the electromagnet is attracted, the touch rod at the end part of the iron core is contacted with the rotating poking arm 201, and the poking device 2 drives the yarn shoveling controller 3 to act, so that the feeding stopping and re-feeding are realized.
The second structure is as follows: as shown in fig. 4 and 5, the stopping device 302 includes a stopping driving electromagnet 3021, a first returning device, and a stopping rotating member 3022 whose fulcrum is fixed on the base body 301, and the stopping driving electromagnet 3021 and the stopping rotating member 3022 are located on the bottom surface of the base body 301; a feeding stopping empty groove 3011 is arranged on the basal body 301, a feeding stopping touch piece 3023 is arranged on the feeding stopping rotating piece 3022, and the feeding stopping touch piece 3023 extends out of the feeding stopping empty groove 3011; the first returning means is used to return the rotated stopping rotary member 3022 to the initial position.
The re-feeding device 303 comprises a re-feeding driving electromagnet 3031, a second resetting device and a re-feeding rotating member 3032 with a fulcrum fixed on the base body 301, wherein the re-feeding driving electromagnet 3031 and the re-feeding rotating member 3032 are positioned on the bottom surface of the base body 301; the basal body 301 is provided with a re-feeding empty groove 3012, the re-feeding rotary member 3032 is provided with a re-feeding touch member 3033, and the re-feeding touch member 3033 extends out of the re-feeding empty groove 3012; the second returning means serves to return the rotated re-feeding rotary member 3032 to the initial position.
In the second configuration, the stop touch piece 3023 extends out of the stop empty channel 3011 at all times, and the refeed touch piece 3033 extends out of the refeed empty channel 3012 at all times. When the system receives a feeding stopping signal, the feeding stopping driving electromagnet 3021 is in an energized state, and the feeding stopping touching piece 3023 is attracted by the electromagnetic field generated by the feeding stopping driving electromagnet 3021. Since the stopping rotary member 3022 is rotatably attached to the base body 301 since the stopping rotary member 3023 is attached to the stopping rotary member 3022, when the stopping driving electromagnet 3021 attracts the stopping rotary member 3023, the stopping rotary member 3022 rotates and the stopping rotary member 3023 approaches the stopping driving electromagnet 3021. When the feeding stopping collision pieces 3023 are located between the shift arms 201, during the rotation of the shift arms 201, one shift arm 201 contacts the feeding stopping collision piece 3023 and applies a force to the feeding stopping collision piece 3023, so that the feeding stopping device 302 moves to realize the feeding stopping function. After the feeding stop function is implemented, the feeding stop driving electromagnet 3021 is de-energized, and the feeding stop collision member 3023 and the feeding stop rotation member 3022 are restored to the initial positions, i.e., are not located in the movement locus of the dial arm 201 and do not contact the dial arm 201, by the first reset means.
When the system receives the re-feeding signal, the re-feeding driving electromagnet 3031 is in a power-on state, and the re-feeding touch member 3033 is attracted by the electromagnetic field generated by the re-feeding driving electromagnet 3031. Since the re-feeding rotary member 3033 is attached to the re-feeding rotary member 3032, the re-feeding rotary member 3032 is rotatably attached to the base body 301, so that when the re-feeding driving electromagnet 3031 attracts the re-feeding rotary member 3033, the re-feeding rotary member 3032 rotates and the re-feeding rotary member 3033 approaches the re-feeding driving electromagnet 3031. When the re-feeding collision part 3033 is positioned between the shifting arms 201, one shifting arm 201 contacts with the re-feeding collision part 3033 in the rotation process of the shifting arms 201, and acts on the re-feeding collision part 3033, so that the re-feeding device 303 moves to realize the re-feeding function. After the re-feeding function is realized, the re-feeding driving electromagnet 3031 is powered off, and the re-feeding collision member 3033 and the re-feeding rotation member 3032 are restored to the initial positions, namely are not positioned in the motion track of the shifting arm 201 and are not contacted with the shifting arm 201 under the action of the second resetting device.
A third structure: as shown in fig. 6, the feeder stopping device 302 includes a feeder stopping rotary member 3022 fixed to the base body 301 at a fulcrum, the feeder stopping rotary member 3022 being located on the bottom surface of the base body 301; the basal body 301 is provided with a feeding stopping empty groove 3011, the feeding stopping rotating piece 3022 is provided with a feeding stopping touching piece 3023, and the feeding stopping touching piece 3023 extends out of the feeding stopping empty groove 3011.
The re-feeding device 303 comprises a re-feeding rotary member 3032 fixed on the base body 301, and the re-feeding rotary member 3032 is positioned on the bottom surface of the base body 301; the basal body 301 is provided with a re-feeding empty groove 3012, the re-feeding rotary member 3032 is provided with a re-feeding touch member 3033, and the re-feeding touch member 3033 extends out of the re-feeding empty groove 3012.
The driving mechanism also comprises a bidirectional driving electromagnet 3024, and the bidirectional driving electromagnet 3024 is positioned on the bottom surface of the base body 301; the bi-directional drive electromagnet 3024 opposes the re-feeding rotary member 3032 or the de-feeding rotary member 3022. A connecting rod 304 is movably connected between the re-feeding rotary member 3032 and the stopping rotary member 3022 respectively.
In the second configuration, the feeding stop device 302 and the re-feeding device 303 are operated separately. In the third structure, the feeding stopping device 302 and the re-feeding device 303 realize linkage. Specifically, when the system receives a feeding stop signal, the bidirectional driving electromagnet 3024 is energized, and the bidirectional driving electromagnet 3024 attracts the feeding stop collision member 3023 using an electromagnetic field. The stop rotary member 3022 rotates and the stop catch member 3023 approaches the bi-directional driving electromagnet 3024. The stopping collision piece 3023 is located in the movement locus of the dial arm 201. One of the arms 201 is toggled and applies a force to the stop catch 3023, causing the stop device 302 to move, achieving a stop function. In this process, due to the function of the connecting rod, when the stop-feed collision member 3023 is located in the movement locus of the dial arm 201, the re-feed collision member 3033 is located outside the movement locus of the dial arm 201. When the system receives the re-feeding signal, electricity in the opposite direction is introduced into the bidirectional driving electromagnet 3024, and the bidirectional driving electromagnet 3024 attracts the re-feeding impact piece 3033 by using an electromagnetic field. The re-feeding rotary member 3032 rotates, and the re-feeding collision member 3033 approaches the bidirectional driving electromagnet 3024. The re-feeding collision member 3033 is located in the movement locus of the dial arm 201. One of the toggle arms 201 applies a force to the re-feeding abutment 3033 to move the re-feeding device 303 to perform a re-feeding function. At this time, due to the function of the connecting rod, when the refeed impact 3033 is located in the movement locus of the dial arm 201, the stop impact 3023 is located outside the movement locus of the dial arm 201.
As shown in fig. 1, the embodiment of the present invention further provides an apparatus for automatically stopping feeding and re-feeding roving, which includes the driving mechanism, the yarn shoveling rod 4 and the yarn shoveling device 5 of the above embodiment. The basal body 301 of the yarn shoveling controller 3 is connected with the yarn shoveling rod 4, and the yarn shoveling device 5 is positioned in the cavity of the yarn shoveling rod 4.
The movement of the base body 301 in the driving mechanism drives the yarn shoveling rod 4 to move, and further drives the yarn shoveling device 5 to move. According to the re-feeding or feeding stopping signal, the moving direction of the base body 301 is different, so that the re-feeding or feeding stopping function is realized.
The embodiment of the invention also provides a method for automatically stopping feeding and re-feeding roving, which comprises the following steps:
s10, starting the rotating shaft 1, and driving the shifting device 2 to rotate by the rotating shaft 1;
s20 receives the feeding stopping signal, controls the feeding stopping device 302 to work, enables the rotating shifting arm 201 to touch the feeding stopping device 302, the shifting arm 201 drives the yarn shoveling controller 3 to move, the yarn shoveling rod 4 drives the yarn shoveling device 5 to rotate for one phase, the yarn shoveling device 5 enters the back roller jaw 6, and rough yarn feeding is cut off.
In the above method, when the feed stop apparatus 302 is touched by the dial arm 201, the dial arm 201 applies a force to the feed stop apparatus 302, and the feed stop apparatus 302 and the base 301 are moved. The yarn shoveling rod 4 drives the yarn shoveling device 5 to rotate for one phase, the yarn shoveling device 5 enters the rear roller jaw 6, rough yarn feeding is cut off, and the feeding stopping function is achieved.
Preferably, the method further comprises: s30 receives the re-feeding signal, controls the re-feeding device 303 to work, enables the rotating shifting arm 201 to touch the re-feeding device 303, the shifting arm 201 drives the yarn shoveling controller 3 to move, the yarn shoveling rod 4 drives the yarn shoveling device 5 to rotate for a phase, the yarn shoveling device 5 moves out of the back roller jaw 6, and the roving feeding is recovered.
In this step, the dial arm 201 applies an acting force to the refeeding device 303 by touching the dial arm 201 and the refeeding device 303, so that the refeeding device 303 and the base 301 move. The yarn shoveling rod 4 drives the yarn shoveling device 5 to rotate for a phase, the yarn shoveling device 5 moves out of the back roller jaw 6, the roving feeding is recovered, and the re-feeding function is realized. During roving refeed and roving dead feed, the refeed device 303 and dead feed device 302 move in opposite directions.
And a strand supporting and guiding device is arranged between the back roller and the middle roller, the strand supporting and guiding device is in an arc bottom groove shape, and strands in a back traction area after the roving is stopped and fed are supported by the strand supporting and guiding device, so that the strands are guided to enter a jaw of the middle roller during re-feeding.
The automatic feeding stopping device can automatically realize the instructed automatic feeding stopping and the instructed automatic re-feeding so as to automatically re-feed the roving which is stopped and fed on the broken end spindle position when the spinning frame applies the automatic splicer, facilitate the automatic splicer to efficiently perform splicing operation, and efficiently and conveniently finish the splicing operation when manually replacing the spinning frame. The invention is beneficial to realizing the full automation of the joint, has simple structure and is easy to realize.
Claims (8)
1. The driving mechanism for automatic feeding stop and re-feeding of the roving is characterized by comprising a rotating shaft (1), a shifting device (2) with a shifting arm (201) and a yarn shoveling controller (3), wherein the shifting device (2) is fixedly connected with the rotating shaft (1), the yarn shoveling controller (3) comprises a base body (301) provided with a hollow groove, a feeding stop device (302) and a re-feeding device (303), the rotating shaft (1) penetrates through the hollow groove, and the shifting device (2) is close to the surface of the base body (301); the feed stopping device (302) and the re-feeding device (303) are respectively positioned on the base body (301), and the feed stopping device (302) and the re-feeding device (303) can be matched with the poke arm (201) to enable the yarn shoveling controller (3) to move; when in use, the yarn shoveling controller (3) can be movably connected to the external fixing piece.
2. Roving automatic stop-feed and refeed drive mechanism according to claim 1, characterized in that said toggle arms (201) are three or four and are evenly distributed circumferentially along the toggle device (2).
3. The roving automatic stop-feed and refeed drive mechanism according to claim 1, characterized in that said stop-feed device (302) comprises a stop-feed drive and a stop-feed collision bar, the stop-feed drive and the stop-feed collision bar being connected, the base body (301) being provided with a first through hole through which the stop-feed collision bar can pass;
the re-feeding device (303) comprises a re-feeding driver and a re-feeding collision rod, the re-feeding driver is connected with the re-feeding collision rod, a second through hole is formed in the base body (301), and the feeding stop collision rod can penetrate through the second through hole.
4. The roving automatic stop-feed and refeed drive mechanism according to claim 1, characterized in that said stop-feed device (302) comprises a stop-feed drive electromagnet (3021), a first return device, and a stop-feed rotary member (3022) whose fulcrum is fixed to the base body (301), the stop-feed drive electromagnet (3021) and the stop-feed rotary member (3022) being located on the bottom surface of the base body (301); a feeding stopping empty groove (3011) is arranged on the base body (301), a feeding stopping touch piece (3023) is arranged on the feeding stopping rotating piece (3022), and the feeding stopping touch piece (3023) extends out of the feeding stopping empty groove (3011); the first resetting device is used for resetting the feeding stopping rotating piece (3022) after rotating to the initial position;
the re-feeding device (303) comprises a re-feeding driving electromagnet (3031), a second resetting device and a re-feeding rotating member (3032) with a fulcrum fixed on the base body (301), wherein the re-feeding driving electromagnet (3031) and the re-feeding rotating member (3032) are positioned on the bottom surface of the base body (301); a re-feeding empty groove (3012) is arranged on the base body (301), a re-feeding touch piece (3033) is arranged on the re-feeding rotating piece (3032), and the re-feeding touch piece (3033) extends out of the re-feeding empty groove (3012); the second resetting device is used for resetting the rotated re-feeding rotating member (3032) to the initial position.
5. A roving automatic stop and refeed drive mechanism according to claim 1, characterized in that said stop means (302) comprise a stop rotary member (3022) fulcrum-fixed on the base body (301), the stop rotary member (3022) being located on the bottom surface of the base body (301); a feeding stopping empty groove (3011) is arranged on the base body (301), a feeding stopping touch piece (3023) is arranged on the feeding stopping rotating piece (3022), and the feeding stopping touch piece (3023) extends out of the feeding stopping empty groove (3011);
the re-feeding device (303) comprises a re-feeding rotating member (3032) fixed on the base body (301) at the fulcrum, and the re-feeding rotating member (3032) is positioned on the bottom surface of the base body (301); a re-feeding empty groove (3012) is arranged on the base body (301), a re-feeding touch piece (3033) is arranged on the re-feeding rotating piece (3032), and the re-feeding touch piece (3033) extends out of the re-feeding empty groove (3012);
the driving mechanism further comprises a bidirectional driving electromagnet (3024), and the bidirectional driving electromagnet (3024) is positioned on the bottom surface of the base body (301); the bidirectional driving electromagnet (3024) is opposite to the re-feeding rotary member (3032) or the feeding stopping rotary member (3022);
a connecting rod is movably connected between the re-feeding rotating member (3032) and the feeding stopping rotating member (3022) respectively.
6. An automatic roving stopping and refeeding device comprising a driving mechanism according to any one of claims 1 to 5, characterized in that the device comprises a driving mechanism, a yarn shoveling rod (4) and a yarn shoveling device (5), wherein the base body (301) of the yarn shoveling controller (3) is connected with the yarn shoveling rod (4), and the yarn shoveling device (5) is positioned in a cavity of the yarn shoveling rod (4).
7. A method of automatically stopping and re-feeding a roving, the method comprising:
starting the rotating shaft (1), wherein the rotating shaft (1) drives the shifting device (2) to rotate;
receiving a feeding stopping signal, controlling a feeding stopping device (302) to work, enabling a rotating shifting arm (201) to touch the feeding stopping device (302), driving a yarn shoveling controller (3) to move by the shifting arm (201), driving a yarn shoveling rod (4) to rotate a yarn shoveling device (5) by a phase, enabling the yarn shoveling device (5) to enter a rear roller jaw (6), and cutting off roving feeding.
8. The method of automatically stopping and refeeding rovings according to claim 7, further comprising:
receiving a re-feeding signal, controlling the work of a re-feeding device (303), enabling a rotating shifting arm (201) to touch the re-feeding device (303), driving a yarn shoveling controller (3) to move by the shifting arm (201), driving a yarn shoveling rod (4) to rotate a yarn shoveling device (5) for one phase, moving the yarn shoveling device (5) out of a rear roller jaw (6), and recovering the feeding of the rough yarn.
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