Single slot double needle needle plate device

Abstract

The application discloses a single-groove double-needle needle plate device, which comprises a needle plate, a needle assembly, a sinker and a yarn baffle. A plurality of insertion pieces are inserted into the needle plate at intervals along the width direction, and a partition piece is inserted between adjacent insertion pieces. First and second needle grooves are formed between the partition pieces and the insertion pieces. The needle assembly is a pair of needle assemblies which are respectively arranged in the first and second needle grooves in a sliding mode. The sinker is inserted into the top of the needle groove, and the yarn baffle is inserted between the sinkers. Connection stitches are arranged between the needle assemblies in the first and second needle grooves. The single-groove double-needle weaving mode can greatly reduce the double-needle distance, so that the weaving is more compact, and the weaving efficiency and quality are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of computerized flat knitting machines, in particular to a single-groove double-needle needle plate device. BACKGROUND

[0002] A computerized flat knitting machine is a double-needle plate weft knitting machine. Its cam device is like a set of plane cams, and the needle stitches of the knitting needles can enter the groove of the cam, move the cam, and force the knitting needles to make regular lifting movements in the needle groove of the needle plate, and through the action of the needle hook and the needle tongue, the yarn can be knitted into a knitted fabric. During the lifting process of the knitting needle, the loop gradually exits the needle hook, opens the needle tongue, and exits the needle tongue and hangs on the needle rod; during the descending process of the knitting needle, the needle hook hooks the newly laid yarn and pulls it to bend into a loop, while the original loop is detached from the needle hook, and the new loop passes through the old loop and is connected in series with the old loop, and the loops knitted by the numerous knitting needles are connected to form a knitted fabric.

[0003] At present, the needle plate of the computerized flat knitting machine adopts a single-groove single-needle mode, that is, one needle groove is provided with one knitting needle group, and the knitting needle group usually includes a selector, a spring needle, a long needle, and a tongue needle. The front side of the tongue needle has a loop-expanding piece, so the opening width of the needle groove should be greater than the maximum thickness of the knitting needle group, and each adjacent two knitting needle groups are separated by an insert piece. The design of the insert piece also has certain size limitations, which limits the distance between the two adjacent knitting needle groups, so that the knitted fabric cannot be knitted more densely, the body-fitting degree has limitations, and the knitted pattern is not rich enough. Therefore, it is necessary to improve and optimize the existing computerized flat knitting machine needle plate. SUMMARY

[0004] The technical problem to be solved by the embodiment of the present application is to provide a single-groove double-needle needle plate device, which adopts a single-groove double-needle knitting mode, greatly reduces the double-needle distance, makes the knitting more dense, and effectively improves the knitting efficiency and quality.

[0005] To achieve the above-mentioned purpose, the present application discloses a single-groove double-needle needle plate device, which comprises a needle plate, a knitting needle assembly, a sinker, and a yarn stopper. The needle plate is provided with a plurality of insert pieces at intervals along the width direction, and a spacer is provided between adjacent insert pieces. The spacer and the insert piece form a first needle groove and a second needle groove. The knitting needle assembly is a pair of knitting needle assemblies and is slidably arranged in the first needle groove and the second needle groove, respectively. The sinker is inserted into the top of the needle groove, and the yarn stopper is inserted between the sinkers.

[0006] The connecting needle holder is provided between the needle assembly in the first needle groove and the second needle groove, and comprises a connecting seat, a first sheet and a second sheet.

[0007] The connecting seat is embedded with the long needle holder, so that the connecting needle holder pushes the needle up under the driving of the cam plate, and the head end of the spring needle holder is above the tail of the long needle holder.

[0008] Further, the upper part of the two side walls of the insert piece is outwardly provided with a convex edge, so that the sliding space of the needle assembly is formed between any adjacent insert pieces, and the first sheet and the second sheet of the connecting needle holder are respectively in contact with the convex edge of the insert piece.

[0009] Further, the top surface of the connecting seat is provided with a connecting back piece heel matched with the cam plate, and the bottom surface of the connecting seat is provided with a connecting front piece heel matched with the long needle holder.

[0010] Further, the middle part of the long needle holder has a recess matched with the connecting front piece heel.

[0011] Further, the upper part of the needle plate is provided with a first steel bar and a second steel bar, one end of the sinker has a first shaft hole, the first steel bar is arranged on the first shaft hole of the sinker, the other end of the sinker is provided with a long hole, and the second steel bar is arranged on the long hole of the sinker, so that the sinker swings forward and backward around the first steel bar.

[0012] Further, the upper end of the yarn stopping piece has a clamping groove matched with the second steel bar.

[0013] Further, the yarn stopping piece has a second shaft hole, and the first steel bar is inserted into the second shaft hole.

[0014] Further, the yarn stopping piece is provided with a slot at the end away from the needle assembly.

[0015] Further, the needle plate is provided with a plurality of first insert slots along the width direction, and a second insert slot is arranged between any adjacent first insert slots, so that the insert piece is inserted into the first insert slot, and the partition piece is inserted into the second insert slot.

[0016] Further, the upper two sides of the insert piece are provided with inwardly recessed grooves, and the first needle groove and the second needle groove are mirror arranged to make the loopers of the knitting needles arranged in the grooves of the insert piece respectively.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] (1) The present application adopts a single-groove double-needle weaving method, and each insert piece is provided with a recessed position matched with the looper of the knitting needle, so as to reduce the occupied space of the knitting needle, and the upper part of the two side walls of each insert piece is provided with a protruding edge outwardly, so as to limit the connecting needle to be between the needle plate and the protruding edge, and avoid the shaking of the connecting needle.(2) In the present application, a yarn blocking piece is arranged between any adjacent sinkers, so that when one knitting needle is lowered to form a loop, the slotted side wall of the yarn blocking piece is matched with the needle head of the other knitting needle to block the yarn of the loop, so as to greatly improve the weaving stability and reduce the defective rate of the woven fabric. (3) In the present application, the sinker can swing forward and backward, which can press the yarn when the knitting needle is raised to drop the loop, and the sinker swings forward under the pulling of the yarn when the knitting needle is lowered to form a loop, so that the yarn pulled by the knitting needle is not easy to be tight, and the length of the yarn pulled downward is increased, which greatly improves the looping speed. (4) The first thin piece and the second thin piece form an accommodation space, so that the double needles can be arranged in the accommodation space of the connecting needle, which greatly reduces the occupied space of the knitting needle assembly 2 and the connecting needle 4, effectively reduces the needle pitch between the knitting needle assemblies, and makes the weaving more compact. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0020] Figure 2 It is a schematic diagram of the structure of the needle plate;

[0021] Figure 3 It is a schematic diagram of the structure of the needle plate; Figure 2

[0022] Figure 4 It is a schematic diagram of the overall structure of the knitting needle assembly;

[0023] Figure 5 It is a schematic diagram of the overall structure of the insert piece;

[0024] Figure 6 It is a schematic diagram of the overall structure of the connecting needle;

[0025] Figure 7 It is a schematic diagram of the connection of the connecting needle and the long needle;

[0026] Figure 8 It is a schematic diagram of the overall structure of the sinker;

[0027] Figure 9 It is the overall structure diagram of the yarn stopping piece. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings.

[0029] Referring to Figures 1-3 As shown in the figure, a single groove double needle needle plate device includes a needle plate 1, a plurality of needle assemblies 2, a plurality of sinkers 3, a plurality of yarn stopping pieces 5, the needle plate 1 is provided with a plurality of inserts 11 along the width direction, and a spacer 12 is arranged between adjacent inserts 11, in this embodiment, a plurality of first insert grooves 15 are arranged along the width direction on the needle plate 1, and a second insert groove is arranged between adjacent first insert grooves 15, wherein the inserts 11 are respectively inserted into the first insert grooves 15, and the spacers 12 are respectively inserted into the second insert grooves, so that the first needle groove 13 and the second needle groove 14 are formed between the spacers 12 and the inserts 11, the needle assemblies 2 are respectively slidably arranged in the first needle groove 13 and the second needle groove 14, in addition, the sinkers 3 are respectively inserted into the top of the first insert grooves 15 of the needle plate 1, and the yarn stopping pieces 5 are respectively inserted between adjacent sinkers 3.

[0030] In this embodiment, the needle plate 1 is fixedly arranged on the flat knitting machine, and a cam plate is slidably arranged on the needle plate 1, the cam plate is driven by the machine head to move left and right, so that the cam plate drives the needle assemblies 2 in the needle plate 1 to perform knitting work, and the connection relationship between the needle plate 1 and the cam plate and the linkage relationship between the cam plate and the plurality of needle assemblies 2 are both existing technologies, which will not be repeated here.

[0031] In combination with Figure 2 , Figure 3 As shown in the figure, further, a connecting needle stitch 4 is arranged between the needle assemblies 2 in the first needle groove 13 and the second needle groove 14, in this embodiment, the needle assembly 2 includes a needle 21, a long needle stitch 22, a spring needle stitch 23 and a selection needle stitch 24, which are respectively slidably inserted into the first needle groove 13 and the second needle groove 14, the front end of the long needle stitch 22 is embedded in the lower end of the needle 21, the spring needle stitch 23 is arranged at the lower part of the long needle stitch 22, and the head end of the spring needle stitch 23 is located above the tail of the long needle stitch 22, the selection needle stitch 24 is arranged opposite to the spring needle stitch 23, the lower part of the selection needle stitch 24 is provided with a selection needle back piece heel below the spring needle stitch 23, and the connecting needle stitch 4 is embedded with the long needle stitch 22.

[0032] In this embodiment, the connection relationship between the various components in the needle assembly 2 and the action principle are existing technologies, which will not be repeated here.

[0033] Referring to Figure 4 , Figure 6As shown, specifically, the connecting needle leg 4 comprises a connecting seat 41, a first thin sheet 42, and a second thin sheet 43. The connecting seat 41 is arranged between the first thin sheet 42 and the second thin sheet 43. In this embodiment, the distance between the first thin sheet 42 and the second thin sheet 43 is the same as the distance between the insertion sheets 11, so as to avoid the left and right shaking of the connecting needle leg in the first needle groove 13 / second needle groove 14. The first thin sheet 42 and the second thin sheet 43 form a containing space, so that after the needle assembly 2 is respectively installed in the first needle groove 13 and the second needle groove 14, the long needle leg 22 and the spring needle leg 23 are respectively arranged in the containing space between the first thin sheet 42 and the second thin sheet 43, so as to greatly reduce the occupied space of the needle assembly 2 and the connecting needle leg 4, effectively reduce the needle pitch between the needle assemblies, and the bottom surface of the connecting seat 41 is provided with a connecting front butt 412 matched with the long needle leg 22, that is, the middle part of the long needle leg 22 has a recess 221 matched with the connecting front butt 412, so as to embed the connecting seat 41 of the connecting needle leg 4 with the long needle leg 22. The top surface of the connecting seat 41 is provided with a connecting rear butt 411 matched with the hill plate, so as to drive the needle assembly 2 in the first needle groove 13 and the second needle groove 14 to synchronously rise or fall under the driving of the hill plate.

[0034] Referring to Figure 5 As shown, further, the upper part of the two side walls of the insertion sheet 11 is outwardly provided with a protruding edge 111, so that the adjacent insertion sheets 11 are narrow at the top and wide at the bottom to form a sliding space of the needle assembly 2. Therefore, when the connecting needle leg 4 is arranged in the first needle groove 13 / second needle groove 14, the first thin sheet 42 and the second thin sheet 43 of the connecting needle leg 4 respectively abut against the protruding edge 111 of the insertion sheet 11, so as to avoid the front and back shaking, greatly improve the stability of the work of the connecting needle leg, and prevent the connecting needle leg from being separated from the needle groove. In addition, the upper part of the two sides of the insertion sheet 11 is respectively provided with an inwardly recessed groove 112. In this embodiment, the loop sheets of the needles 21 in the first needle groove 13 and the second needle groove 14 are mirror images, so that after the needles 21 are respectively inserted into the first needle groove 13 / second needle groove 14, the loop sheets of the needles 21 are respectively arranged in the grooves 112 of the insertion sheets 11. Therefore, not only the distance between the partition plate 12 and the insertion sheet 11 is greatly reduced, the volume of the needle plate is reduced, and the interval between the double needles is reduced, so as to reduce the needle pitch and ensure the closer knitting.

[0035] The cam plate in the embodiment comprises a first cam system, a second cam system, a pair of left selectors, and a pair of right selectors. The first cam system and the second cam system in the cam plate further have three state positions, which are A position, H position, and B position from top to bottom. The A position corresponds to the knitting of the pressing piece, the H position corresponds to the left needle connection pressing piece, the left lifting eyelet pressing piece, the right needle connection pressing piece, and the right lifting eyelet pressing piece, and the B position corresponds to the non-knitting of the pressing piece. The cooperation relationship between the first cam system, the second cam system, the left selectors, the right selectors, and the three state positions and the needle assembly is the prior art, which is not repeated here.

[0036] When the head drives the cam plate to move to the left, the specific working principle is as follows:

[0037] I. When the needles in the first needle groove and the second needle groove do not knit at the same time, the selector pin 24 in the first needle groove 13 and the second needle groove 14 pushes the spring pin 23 up to the B position under the push of the left selector and the right selector of the cam plate. The spring pin 23 sinks into the first needle groove 13 and the second needle groove 14 under the pressing of the non-knitting pressing piece, so that the concave position 221 of the long pin 22 of the first needle groove 13 and the second needle groove 14 is disconnected from the connecting front piece heel 412 of the connecting pin 4, so that the long pin 22 does not rise with the connecting pin 4, and the double needles do not participate in knitting at the same time.

[0038] II. When the needles in the first needle groove and the second needle groove lift the eyelet at the same time, the selector pin 24 in the first needle groove 13 and the second needle groove 14 pushes the spring pin 23 up to the H position under the push of the left selector and the right selector of the cam plate, and the connecting pin 4 pushes the long pin 22 of the first needle groove 13 and the second needle groove 14 up to the second cam system under the action of the first cam system of the cam plate. The left needle connection pressing piece of the H position in the cam plate retracts, and the left lifting eyelet pressing piece extends, so that the needles in the first needle groove 13 and the second needle groove 14 synchronously complete the lifting of the eyelet.

[0039] III. When the needles in the first needle groove and the second needle groove connect the needle at the same time, the selector pin 24 in the first needle groove 13 and the second needle groove 14 pushes the spring pin 23 up to the H position under the push of the left selector and the right selector of the cam plate, and the connecting pin 4 pushes the long pin 22 of the first needle groove 13 and the second needle groove 14 up to the second cam system under the action of the first cam system of the cam plate. The left needle connection pressing piece of the H position in the cam plate extends, and the left lifting eyelet pressing piece retracts, so that the needles in the first needle groove 13 and the second needle groove 14 synchronously complete the connection of the needle.

[0040] IV. When the needles in the first needle groove and the second needle groove are simultaneously knitted: the selector finger 24 in the first needle groove 13 and the second needle groove 14 respectively pushes the spring needle finger 23 upward to position A under the push of the left selector and the right selector of the cam plate, and the long needle finger 22 of the first needle groove 13 and the second needle groove 14 is simultaneously pushed upward to the second triangle system under the action of the first triangle system of the cam plate by the connecting needle finger 4, while the left knitting pressure plate at position A of the cam plate extends out and the left turning needle triangle retracts, so that the needles in the first needle groove 13 and the second needle groove 14 simultaneously complete knitting.

[0041] V. When the needles in the first needle groove and the second needle groove are simultaneously turned: the selector finger 24 in the first needle groove 13 and the second needle groove 14 respectively pushes the spring needle finger 23 upward to position A under the push of the left selector and the right selector of the cam plate, and the long needle finger 22 of the first needle groove 13 and the second needle groove 14 is simultaneously pushed upward to the second triangle system under the action of the first triangle system of the cam plate by the connecting needle finger 4, while the left knitting pressure plate at position A of the cam plate retracts and the left turning needle triangle extends out, so that the needles 21 in the first needle groove 13 and the second needle groove 14 simultaneously complete turning.

[0042] VI. When the needles in the first needle groove participate in knitting and the needles in the second needle groove do not knit: the selector finger 24 in the second needle groove 14 pushes the spring needle finger 23 upward to position B under the push of the right selector of the cam plate, so that the spring needle finger 23 presses the long needle finger 22 under the action of the non-knitting pressure plate, causing the recessed position of the long needle finger 22 to disengage from the connecting front plate heel of the connecting needle finger 4, and the selector finger 24 in the first needle groove 13 pushes the spring needle finger 23 upward to position A under the push of the left selector of the cam plate, so that the connecting needle finger 4 pushes the long needle finger 22 in the first needle groove 13 upward to the second triangle system under the action of the first triangle system of the cam plate, while the long needle finger 22 in the second needle groove 14 does not rise with the connecting needle finger 4, so that the needles 21 in the first needle groove 13 complete knitting and the needles 21 in the second needle groove 14 do not knit.

[0043] Specifically, when the needles 21 in the first needle groove 13 participate in turning, picking, and lifting, etc., and the needles 21 in the second needle groove 14 do not participate in knitting, the principles can be referred to the above working principles, in addition, when the needles 21 in the second needle groove 14 participate in knitting and the needles 21 in the first needle groove 13 do not participate in knitting, the principles are the same as the above principles, therefore this embodiment will not be repeated here.

[0044] Referring to FIGS. 1-4, Figure 1 Figure 7 As shown in FIGS. 1-4, the upper portion of the needle plate 1 is provided with a first steel bar and a second steel bar from top to bottom, the rear end of the sinker 3 has a first shaft hole 31, the first steel bar is arranged on the first shaft hole 31 of the sinker 3, the front end of the sinker 3 is provided with a long hole 32, and the second steel bar is arranged on the long hole 32 of the sinker 3, so that the sinker 3 can swing forward and backward around the first steel bar under the action of the long hole 32. ​

[0045] Further, the front end of the sinker 3 is provided with a hook groove 33, the front end of the sinker 3 has a yarn blocking part 35 in front of the hook groove 33, and the front end of the sinker 3 has a yarn pushing part 36 below the hook groove 33, and the sinker 3 is further provided with a sinker heel 34, in the embodiment, the sinker heel 34 of the sinker 3 cooperates with the click assembly of the cam plate, and the click assembly is a prior art, which will not be repeated here.

[0046] Specifically, when the knitting needle 21 rises to drop the loop, the sinker is driven to swing forward by the click device, so that the hook groove 33 of the sinker presses the old loop on the knitting needle, helping the knitting needle to smoothly complete the loop dropping, and then the click assembly of the cam plate links the sinker 3 to reset, so as not to hinder the knitting needle to form a loop, thereby preventing the old loop from rising with the knitting needle, and the yarn of the old loop abuts against the yarn pushing part 36 of the sinker 3 during the knitting needle descending to bend the yarn and form a loop, and the click assembly links the sinker to drive the sinker to swing forward while the knitting needle is pulling the loop, and the yarn pushing part of the sinker 3 pushes the old loop, thereby assisting the knitting needle to pull the loop, so that the knitting needle smoothly completes the knitting loop, thereby speeding up the loop forming speed and avoiding the loop being too tight when the knitting needle forms a loop.

[0047] Referring to Figure 1 , Figure 8 Further, the yarn blocking piece 5 has a second shaft hole 51, the first steel bar is inserted into the second shaft hole 51, thereby avoiding the displacement of the yarn blocking piece 5, and the upper end of the yarn blocking piece 5 has a clamping groove 52 matched with the second steel bar, thereby avoiding the swing of the yarn blocking piece 5, and greatly improving the stability of the yarn blocking piece 5.

[0048] Specifically, the end of the yarn blocking piece 5 away from the knitting needle assembly 2 is provided with a slot 53, when the knitting needle 21 in the first needle groove 13 hooks the loop and descends, if the knitting needle 21 in the second needle groove 14 does not participate in knitting, the yarn of the loop is blocked by the cooperation between the inner wall of the slot of the yarn blocking piece 5 and the knitting needle 21 in the second needle groove 14, thereby avoiding the yarn of the loop running into the needle hook of another knitting needle 21 under the pulling of the knitting needle 21, and ensuring the stability of knitting and reducing the defective rate of the knitted fabric.

[0049] Of course, the above embodiment is only for illustrating the technical concept and characteristics of the present application, the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application, any modification made according to the spirit and essence of the main technical solution of the present application should be covered within the protection scope of the present application.

Claims

1. A single slot double needle needle plate apparatus, characterized by, The needle plate (1) is inserted with a plurality of insertion pieces (11) in the width direction, and the insertion pieces (11) are inserted with a spacer (12) between adjacent insertion pieces (11), and the spacer (12) and the insertion piece (11) form a first needle groove (13) and a second needle groove (14), the needle assembly (2) is a pair of and is respectively arranged in the first needle groove (13) and the second needle groove (14), the sinker (3) is inserted on the top of the first insertion groove (15), and the yarn stopper (5) is inserted between the sinkers (3); The needle assembly (2) in the first needle groove (13) and the second needle groove (14) is provided with a connecting needle (4), the connecting needle (4) comprises a connecting seat (41), a first sheet (42) and a second sheet (43), the connecting seat (41) is arranged between the first sheet (42) and the first end of the second sheet (43), so that the first sheet (42) and the second sheet (43) form a containing space, the needle assembly (2) comprises a needle (21), a long needle (22) and a spring needle (23), the front end of the long needle (22) is embedded in the lower end of the needle (21), the long needle (22) and the spring needle (23) are arranged in the containing space between the first sheet (42) and the second sheet (43), and the head end of the spring needle (23) is located above the tail of the long needle (22); The connecting seat is embedded with the long needle (22), so that the connecting needle (4) drives the needle (21) in the first needle groove (13) and the second needle groove (14) to rise under the driving of the cam plate; The upper part of the two side walls of the insertion piece (11) is outwardly provided with a convex edge (111), so that the sliding space of the needle assembly (2) is formed between any adjacent insertion pieces (11) and the convex edge of the first sheet (42) and the second sheet (43) of the connecting needle (4) respectively.

2. A single slot double needle needle plate apparatus as claimed in claim 1, wherein, The top surface of the connecting seat (41) is provided with a connecting back piece butt (411) matched with the cam plate, and the bottom surface of the connecting seat (41) is provided with a connecting front piece butt (412) matched with the long needle (22).

3. A single slot double needle needle plate apparatus as claimed in claim 1, wherein, The middle part of the long needle (22) has a recess (221) matched with the connecting front piece butt (412). The middle part of the long needle (22) has a recess (221) matched with the connecting front piece butt (412).

4. A single slot double needle needle plate apparatus as claimed in claim 1, wherein, The upper portion of the needle plate (1) is provided with a first steel bar and a second steel bar, one end of the sinker (3) is provided with a first shaft hole (31), the first steel bar is arranged on the first shaft hole (31) of the sinker (3), the other end of the sinker (3) is provided with a long hole (32), the second steel bar is arranged on the long hole (32) of the sinker (3), so that the sinker (3) swings around the first steel bar, the front end of the sinker (3) is provided with a hook groove (33), the front end of the sinker (3) is provided with a yarn blocking part (35) in front of the hook groove (33), and the front end of the sinker (3) is provided with a yarn pushing part (36) below the hook groove (33).

5. A single slot double needle needle plate apparatus as claimed in claim 4, wherein, The upper end of the yarn blocking piece (5) is provided with a clamping groove (52) matched with the second steel bar.

6. A single slot double needle needle plate apparatus as described in claim 4, wherein, The yarn blocking piece (5) is provided with a second shaft hole (51), and the first steel bar is inserted into the second shaft hole (51).

7. A single slot double needle needle plate apparatus as described in claim 1 wherein, The yarn blocking piece (5) is provided with a slot (53) at the end away from the needle assembly (2).

8. A single slot double needle needle plate apparatus as described in claim 1, wherein, The needle plate (1) is provided with a plurality of first insertion grooves (15) along the width direction, and a second insertion groove is arranged between any adjacent first insertion grooves (15), so that the insertion piece (11) is inserted into the first insertion groove (15), and the partition piece (12) is inserted into the second insertion groove.

9. A single slot double needle needle plate apparatus as described in claim 1 wherein, The upper portion of the insertion piece (11) is provided with a recess (112) on both sides, and the loop expander of the needle (21) in the first needle groove (13) and the second needle groove (14) is arranged in mirror image, so that the loop expander of the needle (21) is arranged in the recess (112) of the insertion piece (11).

Images