CN113493955B - Transfer device and method for high-density fabric - Google Patents
Transfer device and method for high-density fabric Download PDFInfo
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- CN113493955B CN113493955B CN202010195538.8A CN202010195538A CN113493955B CN 113493955 B CN113493955 B CN 113493955B CN 202010195538 A CN202010195538 A CN 202010195538A CN 113493955 B CN113493955 B CN 113493955B
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- needle
- transfer
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- reed
- hook
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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
- D04B15/02—Loop-transfer points
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Abstract
A high-density fabric transfer device comprises a gauge needle and a transfer needle. The needle head of the gauge needle is arranged on the needle disc of the machine table in a horizontally moving mode, the transfer needle is arranged on the needle cylinder in a vertically moving mode, the stitch of the gauge needle is matched in the corresponding first rail, the stitch of the transfer needle is matched in the corresponding second rail, a two-section transfer section is arranged in the second rail, the transfer needle can be guided to ascend in advance for a small section, one end of the gauge needle slightly inserts into a transfer reed of the transfer needle, and then the transfer needle is pushed to the upper side to perform transfer. Therefore, the condition of needle missing or collision with the transfer reed can be avoided.
Description
Technical Field
The invention relates to a transfer device and a transfer method for high-density fabrics, in particular to a transfer device and a transfer method for transferring yarn loops by using a transfer needle for high-density fabrics.
Background
The mechanism of the main knitting part of the existing circular knitting machine comprises a plurality of upper knitting needles and a plurality of lower knitting needles, wherein the upper knitting needles can be horizontally arranged on a needle dial of a machine table in a moving way, the lower knitting needles can be vertically arranged on a needle cylinder in a moving way, so that the upper knitting needles and the lower knitting needles respectively generate inner displacement, outer displacement, upper displacement and lower displacement so as to carry out the actions of needle withdrawing and needle retracting, and the actions of knitting and yarn discharging are carried out after yarn hooking, and the function of knitting is achieved by repeating the actions.
High density fabrics have been produced using loop transfer devices to move loops to produce an open-cell fabric. A single-loop transfer needle with reed (spring leaf box) is a commonly used transfer needle at present, and has a transfer reed on the side of the needle bar, the lower end of the transfer reed is fixed on the needle bar, the upper end needle point is tightly attached to the needle bar, and the yarn ring can be opened, so that a corresponding knitting needle (regular needle) is inserted into the transfer reed and the yarn ring, when the transfer needle descends, the upper end needle point of the transfer reed is opened by a corresponding hook, and the yarn ring falls into the corresponding hook, thereby completing one-time single-needle transfer.
However, when the conventional transfer device is applied to a high-density fabric, because the yarn ring is small, and when the yarn ring is sleeved outside the transfer reed of the transfer needle, the transfer reed is sleeved and flattened by the yarn ring, so that the action of inserting a corresponding knitting needle (a regular needle) into the transfer reed is difficult, the condition of missing stitch or collision with the transfer reed often occurs, the action of transferring the fabric fails, and further the fabric is flawed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a high-density fabric transfer device and method thereof, which can avoid the occurrence of missed stitches or collision with transfer reeds, in view of the deficiencies of the prior art.
In order to solve the above technical problems, the present invention provides a high-density fabric transfer device, which includes a machine dial, a needle cylinder, a gauge needle, a transfer needle, dial corners, and needle cylinder corners. The machine dial and the needle cylinder are arranged vertically; the normal needle is arranged on the needle dial of the machine table and can horizontally move, the normal needle comprises a first needle rod, a first needle hook and a first needle latch, the first needle hook is arranged at the front end of the first needle rod, the first needle latch is pivoted on the first needle rod and is close to the first needle hook, and a first needle foot is convexly arranged on the first needle rod; the loop transfer needle is arranged on the needle cylinder and can vertically move, the loop transfer needle comprises a second needle rod, a second needle hook, a second needle latch and a loop transfer reed, the second needle hook is arranged at the upper end of the second needle rod, the second needle latch is pivoted on the second needle rod and is close to the second needle hook, the loop transfer reed is arranged on the second needle rod, the lower end of the loop transfer reed is fixed on the second needle rod, the upper end of the loop transfer reed is a movable end and is tightly attached to the second needle rod, and a second stitch is convexly arranged on the second needle rod; the dial cam is arranged above the dial of the machine table, a first rail is arranged on the dial cam, and a first pin of the gauge needle is matched in the first rail; the needle cylinder cam is arranged on the outer side of the needle cylinder, a second track is arranged on the needle cylinder cam, a second stitch of the transfer needle is matched in the second track, a transfer section is arranged in the second track and can guide the transfer needle to move upwards to perform transfer action, the transfer section comprises a first section and a second section, the second section is positioned at the downstream position of the first section, and the second section is higher than the first section; wherein the first section of the transfer section can guide the transfer needle to ascend in advance for one section, so that the first needle hook at one end of the normal needle is partially inserted into the transfer reed of the transfer needle in advance, and then the second section of the transfer section guides the transfer needle to ascend, so that the transfer needle is pushed to the upper part to perform the transfer action.
Preferably, the first section and the second section are horizontal, and the first section and the second section are located at the upper end in the second track.
Preferably, an inclined section is arranged between the first section and the second section, the inclined section is connected between the first section and the second section, and the inclined section is gradually increased from the first section to the second section.
Preferably, the length of the second section is greater than the length of the first section.
Preferably, the loop transfer section is disposed between an ascending section and a descending section, both of which are inclined, the ascending section ascends in a direction close to the loop transfer section, the descending section descends in a direction away from the loop transfer section, one end of the first section away from the second section is connected to the ascending section, and one end of the second section away from the first section is connected to the descending section.
In order to solve the above technical problem, the present invention further provides a method for transferring a high-density fabric, comprising the steps of: providing a transfer device for the high-density fabric; placing the normal needle and the transfer needle at a preset position for transfer; then the normal needle is pushed to move forwards, so that the first yarn ring pulls the first latch open to prepare for moving the second yarn ring; then, the first yarn ring stays in the first hook, and the normal needle moves forwards to be positioned at a preparation position; then the transfer needle is lifted, the first section of the transfer section guides the transfer needle to lift up for a section in advance, the first needle hook of the normal needle is inserted into a transfer reed of the transfer needle in advance, the second section of the transfer section guides the transfer needle to continue lifting, the transfer needle is moved to a transfer position, the second yarn ring slides on the transfer needle and is propped by the transfer reed, and the normal needle extends into the transfer reed and the second yarn ring forwards; then the normal needle takes over the second yarn ring, and the transfer needle starts to descend and reset; and after the normal needle receives the second yarn ring, the normal needle and the first yarn ring enter the first needle hook at the same time to finish the loop transfer action.
The needle cylinder has the advantages that the two-section type transfer section is arranged in the second track at the mountain corner of the needle cylinder, the transfer needle can be guided to ascend by one section in advance by the first section of the transfer section, the first needle hook of the gauge needle is inserted into the transfer reed of the transfer needle in advance, and the second yarn ring to be transferred is not tightly sleeved outside the transfer reed of the transfer needle, so that the transfer reed cannot be flattened by the second yarn ring, the subsequent regular needle is easy to insert into the transfer reed, the condition of needle leakage or collision of the transfer reed cannot occur, and the probability of successful transfer is greatly improved.
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, which is to be read in connection with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to be limiting.
Drawings
Fig. 1 is a schematic plan view of the transfer device of the present invention.
FIG. 2 is a schematic plan view of a needle dial mountain of the present invention.
FIG. 3 is a schematic plan view of a needle cylinder corner of the present invention.
Fig. 4 is a schematic diagram (one) of the transfer method of the present invention.
Fig. 5 is a schematic operation diagram (two) of the transfer method of the present invention.
Fig. 6 is a schematic diagram (iii) illustrating the transfer method of the present invention.
Fig. 7 is a schematic operation diagram (iv) of the transfer method of the present invention.
Fig. 8 is a schematic operation diagram (v) of the transfer method of the present invention.
Fig. 9 is a schematic diagram (six) illustrating the operation of the transfer method of the present invention.
Fig. 10 is a schematic diagram (seventeenth) illustrating the transfer method of the present invention.
Fig. 11 is an operation diagram (eight) of the transfer method of the present invention.
Fig. 12 is a schematic plan view of a transfer needle according to the invention.
Detailed Description
[ first embodiment ]
Referring to fig. 1 to 3, the present invention provides a high-density fabric transfer device, which is applied to a high-density fabric, and includes a gauge needle 1, a transfer needle 2, a machine dial 3 and a needle cylinder 4, wherein the main knitting mechanism of a conventional circular knitting machine includes a plurality of gauge needles 1 and a plurality of transfer needles 2, and only one gauge needle 1 and one transfer needle 2 are disclosed in the drawings. The machine dial 3 and the needle cylinder 4 are arranged perpendicular to each other. The gauge needle 1 is disposed on the machine dial 3, that is, a plurality of dial grooves (not shown) are disposed on the machine dial 3, and the gauge needle 1 is disposed in the corresponding dial groove and can move horizontally. The transfer needle 2 is disposed on the needle cylinder 4, that is, a plurality of needle grooves (not shown) are disposed on the needle cylinder 4, and the transfer needle 2 is disposed in the corresponding needle groove and can move vertically. Since the mechanism of the main weaving part of the circular weaving machine is the prior art, the detailed description is omitted.
The regular needle 1 may be an upper needle, and the regular needle 1 includes a first needle bar 11, a first needle hook 12 and a first needle latch 13. The first hook 12 is disposed at the front end of the first needle bar 11, and the first latch 13 is pivotally disposed on the first needle bar 11 at a position close to the first hook 12. The first needle bar 11 is provided with a first stitch 14.
The transfer needle 2 can be a lower needle, and the transfer needle 2 comprises a second needle bar 21, a second hook 22, a second latch 23 and a transfer spring 24 (as shown in fig. 12). The second hook 22 is disposed at the upper end of the second needle bar 21, and the second latch 23 is pivotally disposed on the second needle bar 21 at a position close to the second hook 22. The transfer reed 24 is disposed on the second needle bar 21 and located below the second needle hook 22, the lower end of the transfer reed 24 is fixed on the second needle bar 21, and the upper end of the transfer reed 24 is a movable end and is tightly attached to the second needle bar 21. The second needle bar 21 is provided with a second stitch 25.
A dial cam 5 is disposed above the machine dial 3, a first rail 51 is disposed on (bottom surface of) the dial cam 5, and the first pins 14 of the regular needle 1 are fitted in the corresponding first rail 51. A needle cylinder cam 6 is provided on the outer side of the needle cylinder 4, a second rail 61 is provided on (inner side of) the needle cylinder cam 6, and the second stitch 25 of the transfer needle 2 is fitted in the corresponding second rail 61. The first rail 51 and the second rail 61 are configured to move the gauge needle 1 inward and outward and the transfer needle 2 upward and downward to perform the operation of withdrawing and narrowing due to the integral rotation of the machine dial 3 and the needle cylinder 4, and to knit by knitting and discharging the yarn after the yarn is hooked, and this operation is repeated to achieve the knitting function.
The second rail 61 has a transfer section 611, and when the second stitch 25 of the transfer needle 2 is engaged in the second rail 61, the second stitch 25 can be lifted by the guide of the transfer section 611, so that the transfer section 611 can guide the transfer needle 2 to move upward for transferring. The transfer section 611 includes a first section 6111 and a second section 6112, the second section 6112 is located at the downstream position of the first section 6111, and the second section 6112 is higher than the first section 6111, so that a two-section transfer section 611 is disposed in the second rail 61.
Preferably, the first segment 6111 and the second segment 6112 are horizontal and located at the upper end of the second track 61. An inclined section 6113 can be arranged between the first section 6111 and the second section 6112, the inclined section 6113 is connected between the first section 6111 and the second section 6112, and the inclined section 6113 is gradually increased from the first section 6111 to the second section 6112, so that the first section 6111 and the second section 6112 can be smoothly connected by using the inclined section 6113. In this embodiment, the length L2 of the second segment is greater than the length L1 of the first segment.
In the present embodiment, the loop segment 611 is disposed between an ascending segment 612 and a descending segment 613, the ascending segment 612 and the descending segment 613 are both inclined, the ascending segment 612 ascends in a direction close to the loop segment 611, and the descending segment 613 descends in a direction away from the loop segment 611. The end of the first segment 6111 away from the second segment 6112 is connected to the rising segment 612, and the end of the second segment 6112 away from the first segment 6111 is connected to the falling segment 613. When the second stitch 25 of the transfer needle 2 is fitted in the second track 61, the second stitch 25 can be raised by the guide of the rising section 612 and lowered by the guide of the falling section 613.
The second rail 61 is provided with a two-section loop transfer section 611, so that the first section 6111 of the loop transfer section 611 can guide the loop transfer needle 2 to ascend for a section in advance, so that the first hook 12 of the gauge needle 1 is inserted into the loop transfer reed 24 of the loop transfer needle 2 in advance, and at this time, the second loop (new loop) to be transferred is not tightly sleeved outside the loop transfer reed 24 of the loop transfer needle 2, so that the loop transfer reed 24 is not sleeved and flattened by the second loop, and the action of inserting the gauge needle 1 into the loop transfer reed 24 is easier. Then, the second segment 6112 of the transfer segment 611 guides the transfer needle 2 to move upward, so that the transfer needle 2 is pushed upward to perform the transfer operation.
[ second embodiment ]
The invention also provides a transfer method of the high-density fabric, which comprises the following steps;
firstly, a transfer device (as shown in fig. 1 to 3) is provided, which includes a gauge needle 1, a transfer needle 2, a machine dial 3, a needle cylinder 4, dial corners 5, needle cylinder corners 6, etc.; since the transfer device is the same as the above embodiment, it will not be described again;
placing the normal needle 1 and the transfer needle 2 at a predetermined position (as shown in fig. 4) in preparation for the transfer operation;
then the normal needle 1 is pushed to move forwards, so that the first yarn ring (old yarn ring) A pulls the first latch 13 (shown in figure 5) to prepare for moving the second yarn ring (new yarn ring) B;
the first loop a is then stopped in the first hook 12 and the gauge needle 1 is moved forward (as shown in fig. 6) to position the gauge needle 1 in the ready position;
then, the transfer needle 2 is lifted, the first section 6111 of the transfer section 611 is used for guiding the transfer needle 2 to lift a section in advance, the first hook 12 of the gauge needle 1 is inserted into the transfer reed 24 of the transfer needle 2 in advance (as shown in fig. 7), at this time, the second yarn ring B to be transferred is not tightly sleeved outside the transfer reed 24 of the transfer needle 2, so the transfer reed 24 is not squashed by the second yarn ring B, the subsequent insertion of the gauge needle 1 into the transfer reed 24 is easier, and then the second section 6112 of the transfer section 611 is used for guiding the transfer needle 2 to lift continuously, so that the transfer needle 2 moves to the transfer position, the second yarn ring B slides down on the transfer needle 2 and is propped open by the transfer reed 24, and the gauge needle 1 extends forwards into the transfer reed 24 and the second yarn ring B (as shown in fig. 8 and fig. 9); when the loop transfer needle 2 drives the second yarn ring B to ascend, the gauge needle 1 presses down the second yarn ring B to ream the second yarn ring B;
then the second yarn ring B is taken up by the gauge needle 1, and the transfer needle 2 starts to descend and reset (as shown in figure 10);
finally, the second yarn loop B is picked up by the gauge needle 1, and then enters the first needle hook 12 simultaneously with the first yarn loop a (as shown in fig. 11), thereby completing the loop transfer operation.
[ advantageous effects of the embodiments ]
The needle cylinder has the advantages that the two-section type transfer section is arranged in the second track at the mountain corner of the needle cylinder, the transfer needle can be guided to ascend by one section in advance by the first section of the transfer section, the first needle hook of the gauge needle is inserted into the transfer reed of the transfer needle in advance, and the second yarn ring to be transferred is not tightly sleeved outside the transfer reed of the transfer needle, so that the transfer reed is not sleeved and flattened by the second yarn ring, the subsequent insertion of the gauge needle into the transfer reed is easy, the condition of needle leakage or collision of the transfer reed is avoided, and the probability of successful transfer is greatly improved.
However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that all equivalent changes made by using the contents of the present specification and the drawings are included in the scope of the present invention, and it is well clarified that the present invention is not limited by the scope of the present invention.
Claims (6)
1. A high-density fabric transfer apparatus, comprising:
a machine dial;
the needle cylinder, the machine dial and the needle cylinder are arranged vertically;
the needle gauge comprises a first needle rod, a first needle hook and a first needle latch, wherein the first needle hook is arranged at the front end of the first needle rod, the first needle latch is pivoted on the first needle rod and is close to the first needle hook, and a first stitch is convexly arranged on the first needle rod;
the loop transfer needle is arranged on the needle cylinder and can vertically move, the loop transfer needle comprises a second needle rod, a second needle hook, a second needle latch and a loop transfer reed, the second needle hook is arranged at the upper end of the second needle rod, the second needle latch is pivoted at the position, close to the second needle hook, on the second needle rod, the loop transfer reed is arranged on the second needle rod, the lower end of the loop transfer reed is fixed on the second needle rod, the upper end of the loop transfer reed is a movable end and is tightly attached to the second needle rod, and a second needle foot is convexly arranged on the second needle rod;
the dial cam is arranged above the dial of the machine table, a first rail is arranged on the dial cam, and a first pin of the gauge needle is matched in the first rail; and
the needle cylinder cam is arranged on the outer side of the needle cylinder, a second track is arranged on the needle cylinder cam, a second stitch of the transfer needle is matched in the second track, a transfer section is arranged in the second track and can guide the transfer needle to move upwards to perform transfer action, the transfer section comprises a first section and a second section, the second section is positioned at the downstream position of the first section, and the second section is higher than the first section;
wherein the first section of the transfer section can guide the transfer needle to ascend in advance for one section, so that the first needle hook at one end of the normal needle is inserted into the transfer reed of the transfer needle in advance, and then the second section of the transfer section guides the transfer needle to ascend, so that the transfer needle is pushed to the upper part to perform the transfer action.
2. The apparatus for transferring a high-density fabric according to claim 1, wherein the first section and the second section are horizontal and the first section and the second section are located at an upper end in the second track.
3. The high-density fabric transfer device of claim 2, wherein an inclined section is provided between the first section and the second section, the inclined section is connected between the first section and the second section, and the inclined section is gradually increased from the first section to the second section.
4. The high density fabric transfer device of claim 1 wherein the second section has a length greater than the length of the first section.
5. The high-density fabric transfer device of claim 1, wherein the transfer section is disposed between an ascending section and a descending section, the ascending section and the descending section are both inclined, the ascending section ascends toward the transfer section, the descending section descends toward the transfer section, one end of the first section, which is far from the second section, is connected to the ascending section, and one end of the second section, which is far from the first section, is connected to the descending section.
6. A method of transferring a high density fabric, comprising the steps of:
providing a high density fabric transfer device according to any one of claims 1 to 5;
placing the normal needle and the transfer needle at a preset position for transfer;
then the normal needle is pushed to move forwards, so that the first yarn ring is pulled out of the first latch and a second yarn ring is ready to be taken;
then, the first yarn ring stays in the first hook, and the normal needle moves forwards to be positioned at a preparation position;
then the transfer needle is lifted, the first section of the transfer section guides the transfer needle to lift a section in advance, the first hook of the normal needle is partially inserted into a transfer reed of the transfer needle in advance, the second section of the transfer section guides the transfer needle to continue lifting, the transfer needle is moved to a transfer position, the second yarn ring slides on the transfer needle and is propped by the transfer reed, and the normal needle extends forwards into the transfer reed and the second yarn ring;
then the normal needle takes over the second yarn ring, and the transfer needle starts to descend and reset; and
after the normal needle receives the second yarn ring, the normal needle and the first yarn ring enter the first needle hook at the same time to finish the loop transferring action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010195538.8A CN113493955B (en) | 2020-03-19 | 2020-03-19 | Transfer device and method for high-density fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010195538.8A CN113493955B (en) | 2020-03-19 | 2020-03-19 | Transfer device and method for high-density fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113493955A CN113493955A (en) | 2021-10-12 |
| CN113493955B true CN113493955B (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010195538.8A Active CN113493955B (en) | 2020-03-19 | 2020-03-19 | Transfer device and method for high-density fabric |
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| CN (1) | CN113493955B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000336561A (en) * | 1999-05-31 | 2000-12-05 | Precision Fukuhara Works Ltd | Circular knitting machine for knitting knitted fabric having high density and its knitting |
| CN202099525U (en) * | 2011-04-28 | 2012-01-04 | 典洋针织机械股份有限公司 | Schenk sheet positioning structure of circular weaving machine |
| WO2016031282A1 (en) * | 2014-08-29 | 2016-03-03 | 永田精機株式会社 | Circular knitting machine knitted fabric seaming method and circular knitting machine system |
| JP5813192B1 (en) * | 2014-08-29 | 2015-11-17 | 永田精機株式会社 | Method and apparatus for transferring knitted fabric of circular knitting machine |
| CN106987994A (en) * | 2017-06-05 | 2017-07-28 | 陈仲纪 | A kind of the take the needle jacquard weave of track of arc walks needle construction and walks needle method |
| CN211079508U (en) * | 2019-08-22 | 2020-07-24 | 桐乡市强隆机械有限公司 | Transfer needle capable of automatically resetting and transfer mechanism with transfer needle |
| CN212152587U (en) * | 2020-03-19 | 2020-12-15 | 典洋针织机械股份有限公司 | Transfer device for high-density fabric |
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2020
- 2020-03-19 CN CN202010195538.8A patent/CN113493955B/en active Active
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| CN113493955A (en) | 2021-10-12 |
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