CN111441135A - Single-motor-controlled waste yarn-free bottom lifting device - Google Patents
Single-motor-controlled waste yarn-free bottom lifting device Download PDFInfo
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- CN111441135A CN111441135A CN202010388639.7A CN202010388639A CN111441135A CN 111441135 A CN111441135 A CN 111441135A CN 202010388639 A CN202010388639 A CN 202010388639A CN 111441135 A CN111441135 A CN 111441135A
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- 239000010789 controlled waste Substances 0.000 title description 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 239000002699 waste material Substances 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims description 61
- 238000003825 pressing Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009941 weaving Methods 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006698 induction Effects 0.000 description 13
- 230000001360 synchronised effect Effects 0.000 description 10
- 238000009940 knitting Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/88—Take-up or draw-off devices for knitting products
- D04B15/90—Take-up or draw-off devices for knitting products for flat-bed knitting machines
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
Abstract
The invention relates to the technical field of weaving equipment, in particular to a single-motor-controlled waste-yarn-free bottom lifting device. The invention has the beneficial effects that: the equipment comprises a steel wire receiving and sending and control action by utilizing a threading device component; the lifting device component comprises a threading device component which rises to a nozzle position along a lifting guide pillar according to a certain time sequence and falls to a main roller clamping position, and the threading device component of the equipment can realize the stretching movement of threading steel wires only by a single motor, so that the waste yarn cost can be saved and the manual work of taking out stitches can be reduced in the batch production process, and the production efficiency of products is improved.
Description
Technical Field
The invention relates to the technical field of weaving equipment, in particular to a single-motor-controlled waste-yarn-free bottom lifting device.
Background
The computerized flat knitting machine bottom lifting device is a device which is arranged below a needle bed and used for providing a pulling force before a roller is not clamped, because the computerized flat knitting machine can finish subsequent knitting only by pulling a knitted fabric such as a garment piece, but the existing bottom lifting device has the defects of complex structure, easy failure, complex structure of a bottom lifting needle plate, yarn waste and the like, and therefore the existing bottom lifting device needs to be improved and optimized.
The applicant has seen the shortcomings of the conventional waste yarn bottoming device, inherits the spirit of research innovation and lean refinement, combines production practice, and provides a practical solution by using a professional scientific method, so that the application of the scheme is provided.
Disclosure of Invention
The invention aims to provide a single-motor-controlled waste-yarn-free bottom lifting device which is reasonable in structural design and can be matched with a computerized flat knitting machine to use, aiming at the existing technical current situation.
Single motor control does not have yarn waste play end device includes: the yarn threading device comprises a yarn threading device assembly and a lifting device assembly, wherein a lifting motor of the lifting device assembly drives the yarn threading device assembly to do longitudinal linear displacement, a winding wheel motor of the yarn threading device assembly drives a winding wheel with teeth to rotate through a gear, one end of a threading steel wire is fixed on the winding wheel, and the threading steel wire sequentially does reciprocating telescopic motion along a wire feeding driving wheel and threading needle groups at two ends of a threading bottom plate.
Specifically, the bottom of the threading bottom plate is provided with a connecting plate, one side of the connecting plate is connected with the bearing slide block through a supporting plate, the other side of the connecting plate is connected with a wire rolling fixing plate on the other side of the connecting plate, and a wire rolling wheel motor is installed on the wire rolling fixing plate.
Specifically, both sides of the lifting device assembly are provided with side plates, the two lifting guide pillars are respectively installed on the inner sides of the two side plates, and the bearing sliding blocks on the two sides are respectively sleeved on the lifting guide pillars and do longitudinal linear displacement along the lifting guide pillars.
Specifically, the lifting motor drives the lifting transmission shaft to rotate, synchronous wheels at two ends of the lifting transmission shaft are connected with a synchronous wheel above the lifting transmission shaft through synchronous belts, bearing sliding blocks at two sides are respectively fixed on the synchronous belts, and limiting blocks are arranged at the upper end and the lower end of each of the two lifting guide columns.
Specifically, the wire winding wheel motor, the wire feeding driving wheel and the wire winding wheel are all installed on the wire winding fixing plate, the wire feeding driving wheel is divided into a wire feeding driving wheel, a driven gear and an elastic pressing wheel, the driven gear is meshed with teeth of the wire winding wheel, the driven gear is meshed with the wire feeding driving wheel, and the elastic pressing wheel is meshed with the wire feeding driving wheel.
Specifically, the outer surface of the wire winding wheel is inwards sunken to form an annular groove for storing the threading steel wire, the periphery of the wire winding wheel is at least provided with an auxiliary wire pressing wheel, the wire winding wheel is provided with a wire winding wheel fixing point for installing and fixing the threading steel wire, and the outer surface of the wire feeding driving wheel is provided with a groove for passing the threading steel wire.
Specifically, the threading needle group is uniformly distributed on the top of the threading bottom plate, the threading needle group is formed by arranging a plurality of threading needles at equal intervals, threading plate needle holes for threading steel wires to pass through are formed in the top of the threading needles, and the threading steel wires pass through the threading plate needle holes of the right threading needles one by one and penetrate through the threading plate needle holes of the left threading needles.
Specifically, the wire winding fixing plate is provided with an infrared zero induction and tension detection wheel, the wire penetrating end on the left side of the yarn penetrating bottom plate is provided with a negative induction probe, and the tension detection wheel and the negative induction probe are connected through a grounding wire and a negative wire.
The invention has the beneficial effects that: the equipment comprises a steel wire receiving and sending and control action by utilizing a threading device component; the lifting device assembly comprises a threading device assembly which rises to a nozzle position along a lifting guide pillar according to a certain time sequence and falls to a main roller clamping position, the threading device assembly of the equipment only needs a single motor to realize the telescopic activity of threading steel wires, the raw material of bottom waste yarns and the manual waste yarn removing process are saved, the waste yarn cost can be saved and the manual waste yarn removing work can be reduced in the batch production process, and the production efficiency of products is improved. Customers in the market place have created new needs from the standpoint of raw material and labor savings for the customers.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a front view of the needle of the present invention;
FIG. 4 is a schematic view of the knitting position of the threading needle of the present invention.
Description of the reference notes: the device comprises a lifting motor 1, a wire winding wheel motor 2, a yarn threading bottom plate 3, a yarn threading needle 4, a yarn threading plate needle eye 41, a connecting plate 5, a supporting plate 6, a lifting guide pillar 7, a bearing slide block 8, a lifting transmission shaft 9, a side plate 10, a limiting block 11, a synchronous belt 12, a yarn threading steel wire 13, a wire winding wheel fixed point 14, a wire winding fixed plate 15, a synchronous wheel 16, an elastic pressing wheel 17, a driven gear 18, a wire feeding driving wheel 19, a tension detection wheel 20, a wire winding wheel 21, an auxiliary wire pressing wheel 22, a negative electrode induction probe 23 and infrared zero position induction 24.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Referring to fig. 1 to 4, a single motor controlled bottoming device without waste yarn is shown as a schematic structural diagram of the present invention, and comprises: the yarn threading device comprises a yarn threading device assembly and a lifting device assembly, wherein a lifting motor of the lifting device assembly drives the yarn threading device assembly to do longitudinal linear displacement, a winding wheel motor of the yarn threading device assembly drives a winding wheel with teeth to rotate through a gear, one end of a threading steel wire is fixed on the winding wheel, and the threading steel wire sequentially does reciprocating telescopic motion along a wire feeding driving wheel and threading needle groups at two ends of a threading bottom plate. The driving and sensing parts of the device are electrically connected to the controller, and the controller sends signals to reasonably control each mechanical part.
According to the scheme, the bottom of the threading bottom plate is provided with the connecting plate, one side of the connecting plate is connected to the bearing slide block through the supporting plate, the other side of the connecting plate is connected to the bearing slide block at the other side of the connecting plate in a wire rolling fixing plate, and the wire rolling wheel motor is installed on the wire rolling fixing plate. The two sides of the lifting device component are respectively provided with a side plate, the two lifting guide pillars are respectively arranged on the inner sides of the two side plates, and the bearing sliding blocks on the two sides are respectively sleeved on the lifting guide pillars and do longitudinal linear displacement along the lifting guide pillars. The lifting motor drives the lifting transmission shaft to rotate, synchronizing wheels at two ends of the lifting transmission shaft are connected with synchronizing wheels above the lifting transmission shaft through synchronizing belts, bearing sliding blocks at two sides are respectively fixed on the synchronizing belts, and limiting blocks are arranged at the upper end and the lower end of each of the two lifting guide columns.
The lifting motor is connected with the lifting transmission shaft through a synchronous wheel and a synchronous belt, and the lifting guide columns are fixed on the side plates and form a left group and a right group; the bearing slide block can slide up and down along the lifting guide pillar, and the limiting blocks are fixed at two ends of the lifting guide pillar and are at the low point and the high point of the sliding stroke; the bearing sliding block is fixedly connected with the synchronous belt, so that the motor rotates and is transmitted through the synchronous belt to drive the bearing sliding block to ascend and descend.
According to the scheme, the wire winding wheel motor, the wire feeding driving wheel and the wire winding wheel are all installed on the wire winding fixing plate, the wire feeding driving wheel is divided into the wire feeding driving wheel, the driven gear and the elastic pressing wheel, the driven gear is meshed with teeth of the wire winding wheel, the driven gear is meshed with the wire feeding driving wheel, and the elastic pressing wheel is meshed with the wire feeding driving wheel. The outer surface of the wire winding wheel is inwards sunken to form an annular groove for storing the threading steel wire, the periphery of the wire winding wheel is at least provided with an auxiliary wire pressing wheel, the wire winding wheel is provided with a wire winding wheel fixing point for installing and fixing the threading steel wire, and the outer surface of the wire feeding driving wheel is provided with a groove for the threading steel wire to pass through. The yarn threading needle group is uniformly distributed on the top of the yarn threading bottom plate and consists of a plurality of yarn threading needles which are arranged at equal intervals, yarn threading plate needle holes for the yarn threading steel wires to pass through are formed in the top of the yarn threading needles, and the yarn threading steel wires pass through the yarn threading plate needle holes of the right yarn threading needles one by one and penetrate through the yarn threading plate needle holes of the left yarn threading needles. The threading plate needle is welded on the threading plate, and the threading steel wire passes through the threading plate needle hole. The thickness of the needle eye of the threading plate corresponds to and is the same as the needle number of the needle plate. The yarn winding fixing plate is provided with an infrared zero-position sensing and tension detecting wheel, the wire penetrating tail end on the left side of the yarn penetrating bottom plate is provided with a negative sensing probe, and the tension detecting wheel and the negative sensing probe are connected through a grounding wire and a negative wire.
The supporting plate is fixedly connected with the bearing sliding block through screws, the supporting plate is fixedly connected with the connecting plate, the wire winding fixing plate and the threading bottom plate are both fixed on the connecting plate, and other components are fixed on the left side plate and the right side plate; ensure that the whole threading device assembly can be driven by the lifting device assembly. The wire winding wheel motor is fixed with a set of toothed wire winding wheels, and a gear on the wire winding wheel motor is meshed with the toothed wire winding wheels to drive the toothed wire winding wheels to rotate around the central shaft of the toothed wire winding wheels; the threading steel wire is tightly attached to a toothed wire winding wheel chute, one end of the threading steel wire is fixed on a wire winding wheel fixing point, and the other end of the threading steel wire can stretch and move along a track; the threading steel wire is clamped and conveyed by the wire feeding driving wheel and the elastic pressing wheel, and the clamping force is adjustable; the power of the wire feeding driving wheel is derived from a wire winding wheel motor, and transmission is realized through meshing of a plurality of groups of gears (the gear of the wire winding wheel motor is meshed with one group of the toothed wire winding wheel, the driven gear is meshed with one group of the toothed wire winding wheel, and the driven gear is meshed with one group of the wire feeding driving wheel); most of the parts for receiving and transmitting the threading steel wire are fixed on the wire winding fixing plate.
The threading steel wire penetrates through the steel wire hole of the threading bottom plate, is aligned with the needle eye of the threading needle welded on the threading bottom plate and penetrates through the middle of the threading bottom plate; the negative induction probe is an induction device which sends out signals from the threading steel wire to reach the threading end point, and the action is stopped when the threading steel wire touches the negative induction probe; the infrared zero-position induction is a zero-position induction device for the withdrawing end point of the threading steel wire, and a motor of the wire winding wheel drives a toothed wire winding wheel to withdraw; when the threading steel wire completely exits from the needle eye of the threading plate and reaches a specified position of the steel wire hole of the threading bottom plate, the threading steel wire stops acting, and at the moment, the infrared zero induction is lightened; namely, the silk winding motor rotates forward and backward to finish the silk feeding and drawing, and the system has the stroke counting function. When the threading steel wire is not tightly attached to the groove of the toothed wire winding wheel and floats, the threading steel wire can trigger the tension detection wheel to alarm and stop; the auxiliary wire pressing wheel can effectively prevent the threading steel wire from being stuck to the groove of the toothed wire winding wheel in the receiving and dispatching process; the threading steel wire only needs a motor just can accomplish all actions and the operation is stable receiving and dispatching and control in-process, and the threading steel wire can move in advance and reach the assigned position outside the open needle region in addition, reduces the waiting time of threading, has improved threading efficiency. The tension detection wheel and the negative pole induction probe are connected by a grounding wire and a negative pole wire.
Weaving description: the sinker device can press down the coils to prepare for knitting of the next row of coils. Until the woven cloth piece can be clamped by the main roller, the threading steel wire retreats from the coil in the toothed wire winding wheel, and the threading steel wire is tightly wound in the groove of the toothed wire winding wheel. At the moment, the lifting device component descends to the lowest point, and the action is stopped when the threading steel wire completely withdraws from the needle eye of the threading plate and reaches the specified position of the steel wire hole of the threading bottom plate.
And (3) a threading process: after the first line of bottom-up loops are knitted, the yarn threading device assembly is driven by the lifting device assembly to ascend to the highest point, the yarn threading needles penetrate through the middle of the two loops, then the yarn threading steel wires are clamped and output by the yarn feeding driving wheels and the elastic pressing wheels until the yarn threading steel wires pass through needle holes of all the yarn threading needles, the yarn threading steel wires reach a yarn threading terminal point and touch the negative pole induction probes, and at the moment, the yarn threading steel wires are just positioned on the first line of loops.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. Single motor control does not have yarn waste play end device includes: threading device subassembly and elevating gear subassembly, its characterized in that: the lifting motor of the lifting device component drives the threading device component to do longitudinal linear displacement, the winding wheel motor of the threading device component drives the toothed winding wheel to rotate through the gear, one end of the threading steel wire is fixed on the winding wheel, and the threading steel wire sequentially does reciprocating telescopic motion along the wire feeding driving wheel, the steel wire hole on one side of the threading bottom plate and the threading needle groups at two ends of the threading bottom plate.
2. The single motor controlled bottoming device without waste yarn according to claim 1, characterized in that: the bottom of the threading bottom plate is provided with a connecting plate, one side of the connecting plate is connected with the bearing slide block through a supporting plate, the other side of the connecting plate is connected with a wire rolling fixing plate which is connected with the bearing slide block at the other side, and a wire rolling wheel motor is arranged on the wire rolling fixing plate.
3. The single motor controlled bottoming device without waste yarn according to claim 2, characterized in that: the two sides of the lifting device component are respectively provided with a side plate, the two lifting guide pillars are respectively arranged on the inner sides of the two side plates, and the bearing sliding blocks on the two sides are respectively sleeved on the lifting guide pillars and do longitudinal linear displacement along the lifting guide pillars.
4. The single motor controlled bottoming device without waste yarn according to claim 3, characterized in that: the lifting motor drives the lifting transmission shaft to rotate, synchronizing wheels at two ends of the lifting transmission shaft are connected with synchronizing wheels above the lifting transmission shaft through synchronizing belts, bearing sliding blocks at two sides are respectively fixed on the synchronizing belts, and limiting blocks are arranged at the upper end and the lower end of each of the two lifting guide columns.
5. The single motor controlled yarn waste free bottoming device according to claim 1 or 4, characterized in that: the wire winding wheel motor, the wire feeding driving wheel and the wire winding wheel are all arranged on the wire winding fixing plate, the wire feeding driving wheel is divided into a wire feeding driving wheel, a driven gear and an elastic pressing wheel, the driven gear is meshed with teeth of the wire winding wheel, the driven gear is meshed with the wire feeding driving wheel, and the elastic pressing wheel is meshed with the wire feeding driving wheel.
6. The single motor controlled bottoming device without waste yarn according to claim 5, characterized in that: the outer surface of the wire winding wheel is inwards sunken to form an annular groove for storing the threading steel wire, the periphery of the wire winding wheel is at least provided with an auxiliary wire pressing wheel, the wire winding wheel is provided with a wire winding wheel fixing point for installing and fixing the threading steel wire, and the outer surface of the wire feeding driving wheel is provided with a groove for the threading steel wire to pass through.
7. The yarn waste-free bottoming device according to claim 6, wherein: the yarn threading needle group is uniformly distributed on the top of the yarn threading bottom plate and consists of a plurality of yarn threading needles which are arranged at equal intervals, yarn threading plate needle holes for the yarn threading steel wires to pass through are formed in the top of the yarn threading needles, and the yarn threading steel wires pass through the yarn threading plate needle holes of the right yarn threading needles one by one and penetrate through the yarn threading plate needle holes of the left yarn threading needles.
8. The single motor controlled bottoming device without waste yarn according to claim 7, characterized in that: the yarn winding fixing plate is provided with an infrared zero-position sensing and tension detecting wheel, the wire penetrating tail end on the left side of the yarn penetrating bottom plate is provided with a negative sensing probe, and the tension detecting wheel and the negative sensing probe are connected through a grounding wire and a negative wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010388639.7A CN111441135A (en) | 2020-05-09 | 2020-05-09 | Single-motor-controlled waste yarn-free bottom lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010388639.7A CN111441135A (en) | 2020-05-09 | 2020-05-09 | Single-motor-controlled waste yarn-free bottom lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111441135A true CN111441135A (en) | 2020-07-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010388639.7A Withdrawn CN111441135A (en) | 2020-05-09 | 2020-05-09 | Single-motor-controlled waste yarn-free bottom lifting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN111441135A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115522316A (en) * | 2022-09-07 | 2022-12-27 | 广东金禄科技股份有限公司 | Novel zero-space yarn intelligent bottom-raising device and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207958632U (en) * | 2018-02-07 | 2018-10-12 | 广东金禄科技股份有限公司 | A kind of bottom rising device |
| CN110106620A (en) * | 2019-06-05 | 2019-08-09 | 陈雪梅 | Novel automatic bottom plate lifting device |
| CN110117871A (en) * | 2018-02-07 | 2019-08-13 | 广东金禄科技股份有限公司 | A kind of bottom rising device |
| CN110438648A (en) * | 2019-08-29 | 2019-11-12 | 桐乡市强隆机械有限公司 | Computerized flat knitting machine bottom-starting device |
| CN110699840A (en) * | 2019-11-22 | 2020-01-17 | 罗军杰 | Wire feeding mechanism |
| CN110846803A (en) * | 2019-12-02 | 2020-02-28 | 宁波慈星股份有限公司 | Thread plate bottom raising device of flat knitting machine |
| CN211897298U (en) * | 2020-02-21 | 2020-11-10 | 汕头市连兴实业有限公司 | Bottom lifting device without waste yarn |
| CN212688364U (en) * | 2020-05-09 | 2021-03-12 | 汕头市连兴实业有限公司 | Single-motor-controlled waste yarn-free bottom lifting device |
-
2020
- 2020-05-09 CN CN202010388639.7A patent/CN111441135A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207958632U (en) * | 2018-02-07 | 2018-10-12 | 广东金禄科技股份有限公司 | A kind of bottom rising device |
| CN110117871A (en) * | 2018-02-07 | 2019-08-13 | 广东金禄科技股份有限公司 | A kind of bottom rising device |
| CN110106620A (en) * | 2019-06-05 | 2019-08-09 | 陈雪梅 | Novel automatic bottom plate lifting device |
| CN110438648A (en) * | 2019-08-29 | 2019-11-12 | 桐乡市强隆机械有限公司 | Computerized flat knitting machine bottom-starting device |
| CN110699840A (en) * | 2019-11-22 | 2020-01-17 | 罗军杰 | Wire feeding mechanism |
| CN110846803A (en) * | 2019-12-02 | 2020-02-28 | 宁波慈星股份有限公司 | Thread plate bottom raising device of flat knitting machine |
| CN211897298U (en) * | 2020-02-21 | 2020-11-10 | 汕头市连兴实业有限公司 | Bottom lifting device without waste yarn |
| CN212688364U (en) * | 2020-05-09 | 2021-03-12 | 汕头市连兴实业有限公司 | Single-motor-controlled waste yarn-free bottom lifting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115522316A (en) * | 2022-09-07 | 2022-12-27 | 广东金禄科技股份有限公司 | Novel zero-space yarn intelligent bottom-raising device and application thereof |
| CN115522316B (en) * | 2022-09-07 | 2024-05-03 | 广东金禄科技股份有限公司 | Novel zero-space yarn intelligent bottom-lifting device and application thereof |
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Application publication date: 20200724 |
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