CN111850781B

CN111850781B - Method for transferring fabric loops

Info

Publication number: CN111850781B
Application number: CN201910363979.1A
Authority: CN
Inventors: 苏建丰
Original assignee: Zhejiang Borui Intelligent Technology Co ltd
Current assignee: Zhejiang Borui Intelligent Technology Co ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2021-12-24
Anticipated expiration: 2039-04-30
Also published as: CN111850781A; WO2020221086A1

Abstract

The invention provides a method for transferring fabric loops, which comprises the following steps: s1, enabling the hosiery knitting needle to be positioned below the gap formed between the two needle protection pieces; s2, moving the needle protection pieces downwards to enable the hosiery knitting needles to penetrate through the gaps formed between the two needle protection pieces; s3, moving the needle protection sheet outwards in the radial direction to separate from the sock knitting needle; s4, moving the group of transfer needles radially inwards until the needle heads of the hosiery knitting needles are positioned in transfer needle grooves formed by the group of transfer needles, and the transfer needle grooves are positioned between the main bodies and the needle tongues of the hosiery knitting needles; s5, pushing the fabric to move upwards, so that the fabric correspondingly moves upwards along the hosiery needles; s6, the latch of the knitting needle is lapped outside the transfer needle, so that the fabric loop can be transferred from the knitting needle to the transfer needle. The invention has the beneficial effects that: provides a simpler and more effective transfer method.

Description

Method for transferring fabric loops

Technical Field

The present invention relates to fabric transfer technology, and more particularly, to a method of transferring fabric loops.

Background

The current circular knitting machine has a complex structure, cannot realize the full-automatic flow of the fabric from knitting, picking, transferring, seam port butting, sewing and fabric overturning devices, needs manual intervention, and greatly reduces the knitting efficiency.

Disclosure of Invention

To address the problems in the background art, the present invention is directed to a method for transferring loops of fabric, comprising: s1, enabling the hosiery knitting needle to be positioned below the gap formed between the two needle protection pieces; s2, moving the needle protection pieces downwards to enable the hosiery knitting needles to penetrate through the gaps formed between the two needle protection pieces; s3, moving the needle protection sheet outwards in the radial direction to separate from the sock knitting needle; s4, moving the group of transfer needles radially inwards until the needle heads of the hosiery knitting needles are positioned in transfer needle grooves formed by the group of transfer needles, and the transfer needle grooves are positioned between the main bodies and the needle tongues of the hosiery knitting needles; s5, pushing the fabric to move upwards, so that the fabric correspondingly moves upwards along the hosiery needles; s6, the latch of the knitting needle is lapped outside the transfer needle, so that the fabric loop can be transferred from the knitting needle to the transfer needle.

Optionally, between S4 and S5, further comprising: s41, moving the needle protection pieces inwards in the radial direction to enable the sock knitting needle to be positioned between the gaps formed between the two needle protection pieces;

optionally, the method further comprises: s7, inserting the slit teeth into a transfer needle groove formed by the group of transfer needles; and S8, disengaging the stitch teeth from the transfer needle and the needle protection sheet.

Optionally, the method further comprises: s9, turning one half of the toothholder downwards by 180 degrees to the position below the other half of the toothholder, and aligning the seam teeth after turning; s10, the pressing plate is pushed downward to transfer the fabric on one half of the slit teeth to the other half of the slit teeth 6 b.

The invention has the beneficial effects that: simplifies the process of fabric transfer, provides efficiency and ensures high efficiency of transfer.

Drawings

In order that the invention may be more readily understood, it will be described in more detail with reference to specific embodiments thereof that are illustrated in the accompanying drawings. These drawings depict only typical embodiments of the invention and are not therefore to be considered to limit the scope of the invention.

FIG. 1 shows a perspective view of one embodiment of a transfer needle used in the method of the present invention.

FIG. 2 shows a perspective view of another embodiment of a transfer needle used in the method of the present invention.

Fig. 3 shows a schematic view of a transfer needle used in the method of the present invention in use.

FIG. 4 shows a perspective view of another embodiment of a transfer needle used in the method of the present invention.

Figure 5 shows a perspective view of one embodiment of a needle guard used in the method of the present invention.

FIG. 6 shows a perspective view of one embodiment of a slit tooth used in the method of the present invention.

Fig. 7 shows a schematic view of an angle of a tooth holder for slot tooth mounting.

Fig. 8 shows a schematic view of another angle of the tooth holder for slot tooth mounting.

FIG. 9 shows a perspective view of another angle of the slot teeth used in the method of the present invention.

FIG. 10 shows a schematic view of a partial structure of a slit tooth used in the method of the present invention.

FIG. 11 shows a schematic partial structure of a slit tooth used in the method of the present invention.

Fig. 12 is a view showing a positional relationship among the slit teeth, the transfer needle, and the needle guard.

Fig. 13-24 show schematic views of the working process of the first stage of the loop transfer of the fabric of the present invention.

Figures 25-32 show a schematic representation of the operation of the second stage of the fabric loop transfer of the present invention.

Reference numerals

Knitting 1 of the hosiery, a needle release disc 2, a sock supporting piece 201, a sinker 201 and a sock turning tube 3; a transfer needle 4a, a transfer needle 4b, a needle guard piece 4c, a transfer needle main body 41, a transfer needle boss 411, a transfer portion 42, a first bifurcating piece 421, a second bifurcating piece 422, a transfer needle groove 43, a needle guard piece main body 45, a needle guard piece clamping portion 46, a needle guard piece chamfered portion 47, a needle guard piece boss 451, a needle guard piece groove 452; a slit tooth 6a, a slit tooth 6b, an elongated body 61, a needle 611, a needle groove 6111, a support 612, a sewing groove 613, a latch 62, a latch protrusion 621, an upturned portion 622, a fixing groove 623, a pressing plate 6c, a tooth holder 6d, a tooth holder 6e, and a fixing plate 6 f; a sewing needle 7b, a fabric 8, and a top bar 10 b.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like parts are designated by like reference numerals. The embodiments described below and the technical features of the embodiments may be combined with each other without conflict.

In the method of transferring fabric loops of the present invention, 3 parts are used, such as the transfer needle shown in fig. 1-4, the needle guard shown in fig. 5, and the seaming teeth shown in fig. 6-11.

Fig. 1 shows a perspective view of a transfer needle 4a of the present invention, which has a transfer needle body 41 having a transfer portion 42 at the head (one end contacting a loop of fabric) of the transfer needle body 41. The transfer needle body 41 is an elongated thin sheet, the transfer portion 42 is curved and offset from the axis of the transfer needle body 41, and preferably, the transfer portion 42 is arc-shaped, tapering from the end of the transfer needle body 41 and pointed at the tip. The transfer needle body 41 has a transfer needle protrusion 411 at a rear portion (an end away from the fabric loop), and the transfer needle protrusion 411 is engaged with a transfer tray of the fabric transfer device, pushes and pulls the transfer needle protrusion 411, and can move the transfer needle inward and inward in the radial direction, and can also move up and down to perform the transfer of the fabric loop.

Fig. 2 shows a perspective view of the transfer pin 4b of the present invention, which is different from the transfer pin 4a in that the shape thereof is symmetrical to the transfer pin 4 a. In use, a pair of

transfer needles

4a, 4b are required to cooperate. Specifically, the

transfer pins

4a and 4b are bonded together. The transfer needle body 41 is made into a sheet shape, so that the two bodies are jointed together, the volume is reduced, and the transfer needle is more environment-friendly.

Fig. 3 shows a state diagram of the

transfer needles

4a, 4b in use. The respective transfer needle bodies 41 of the

transfer needles

4a, 4b are fitted together, while the respective transfer portions 42 form a recess, a transfer needle recess 43, which transfer needle recess 43 is intended to receive the slot teeth of a fabric sewing device, the function and general structure of which are well known to the person skilled in the art and will not be described here.

Fig. 4 shows another embodiment of the transfer pin of the present invention, different from the first embodiment, the transfer pin body 41 has a certain thickness so that a groove, i.e., a transfer pin groove 43, can be opened at the head of the transfer pin body 41. The transfer needle recesses 43 are also used to accommodate the slit teeth. Preferably, the transfer needle groove 43 is asymmetrical with a notch at the end of the groove so that the tip of the knitting needle 1 can slide more smoothly into the transfer needle groove 43 (see fig. 6). The transfer needle body 41 has a transfer needle protrusion 411 at a rear portion (an end away from the fabric loop), and the transfer needle protrusion 411 is engaged with a transfer tray of the fabric transfer device, pushes and pulls the transfer needle protrusion 411, and can move the transfer needle inward and inward in the radial direction, and can also move up and down to perform the transfer of the fabric loop.

Fig. 5 shows the structure of the needle guard 4 c. The needle guard 4c is used in cooperation with the

transfer needles

4a, 4 b. The needle guard 4c has a needle guard main body 45, and a needle guard holding portion 46 extends downward from the front end (one end contacting the stitches of the fabric) of the needle guard main body 45. Preferably, the needle guard clamping portion 46 extends vertically downward.

The needle guard projection 451 is provided on the lower side of the rear end (end distant from the loop of the fabric) of the needle guard main body 45. The needle guard projection 451 is engaged to a transfer tray of a fabric transfer apparatus, and pushing and pulling the needle guard projection 451 can move a transfer needle radially inward and inward, and also can move up and down to perform transfer of a fabric loop. A needle guard beveling portion 47 is formed at the junction between the needle guard main body 45 and the needle guard holding portion 46.

The lower side of the needle guard body 45 has a plurality of needle guard grooves 452 for engagement with a transfer disc of a fabric transfer device. In use, the

sewing needles

4a and 4b are inserted between the two needle guard pieces 4c and positioned in the gap formed by the needle guard piece holders 46 of the two needle guard pieces.

As shown in fig. 6, the slit tooth 6a has an elongated body 61 and an engaging portion 62, and the engaging portion 62 extends from the upper end of the elongated body 61, and the two are combined together to form a substantially 7-shaped overall shape. The elongated body 61 includes a needle portion 611 at a lower end and a support portion 612 at an upper end.

Fig. 7 shows a schematic view of the slit teeth 6a mounted on the tooth holder 6 e. Fig. 8 shows a schematic view of the slit teeth 6a mounted on the tooth holder 6 d. The

toothrests

6e and 6d constitute a complete circular toothrest. Wherein the half-toothholder 6d in fig. 3 is turned 180 degrees downwards so that the two semicircular toothholders are aligned. The slit teeth 6a having a 7-shaped overall shape are mounted on the tooth holder 6e of the fabric transfer device, specifically, the elongated body 61 is fitted in the groove of the tooth holder 6e by hooking the engaging portion 62 to the groove of the tooth holder 6e, wherein the supporting portion 612 is completely fitted in the groove of the tooth holder 6e and only the needle portion 611 is exposed. Similarly, a slot tooth 6b (described below) is mounted on a tooth holder 6d of the fabric transfer device.

To enable the slot transfer teeth 6a and the slot teeth 6b to be mounted on the tooth holder 6e in a more fitting manner, the technical effect is ensured by the further detailed structure of the slot teeth 6a, which is described below with reference to fig. 1 and 4.

As shown in fig. 9, the height H of the support 612 matches the height of the tooth holder 6e, so that the support 612 is not exposed from the tooth holder 6e after installation, and only the needle 611 is exposed from the tooth holder 6 e. The width W of the support 612 matches the depth of the slot of the tooth holder 6e in the radial direction so that the outer surface of the support 612 is flush with the outer surface of the tooth holder 6e in the radial direction after installation, without sinking in and protruding out, the effect after installation being seen in fig. 7.

The engaging portion 62 has an engaging projection 621 on the lower side thereof, and a groove is formed between the engaging projection 621 and the supporting portion 612, so that the slit teeth 6a can be securely caught on the groove of the tooth holder 6 e. The upper surface of the engaging portion 62 has a fixing groove 623 to be engaged with the tooth holder 6e so that the slit tooth 6a can be securely coupled to the groove of the tooth holder 6 e. The tip of the engaging portion 62 has an upturned portion 622 for engaging with the toothholder 6e, thereby making contact therebetween tighter.

Fig. 10 shows the structure of the needle 611. The needle 611 has on its outer side (the side facing radially outward after being mounted on the tooth holder 6 e) a needle groove 6111, which needle groove 6111 is used for aligning the needle 611 of the slit tooth on the lower tooth holder after the tooth holder has been turned over 180 degrees, so that the needle 611 of the slit tooth on the upper tooth holder can overlap into the groove 6111 of the needle 611 of the slit tooth on the upper tooth holder, thereby making the following coil transfer smoother.

Fig. 11 shows a structure of another embodiment of a seaming tooth 6b, which has a seaming groove 613 on the outer side (the side facing radially outward after being mounted on a tooth holder 6 e) of an elongated body 61 of the seaming tooth 6b, the seaming groove 613 being used for accommodating a seaming needle 7b (see fig. 13) of a toe sewing machine, and two seaming needles 7b are alternately sewed to sew together the toe of the sock.

Fig. 12 shows the positional relationship among the slit tooth 6a, the transfer needle 4b, and the two needle guard pieces 4 c. The slit teeth 6a are inserted into a transfer needle groove 43 formed by the transfer needle 4a and the transfer needle 4b together, and the transfer needle 4a and the transfer needle 4b are inserted into a gap between two needle guard pieces 4 c.

The operation of the transfer needle of the present invention will be described with reference to fig. 13 to 24. The invention is described below with reference to socks as an example, but the invention can also be applied to other fabrics.

As shown in fig. 13, after the sock is woven to the last turn, the fabric 8 is inside the tube 3 of the hosiery knitting machine, with the loops of the fabric 8 under the latch of the hosiery knitting needle 1.

As shown in fig. 14, the sock support piece 201 of fig. 13 is removed and the transfer device is moved over the knitting needle 1 so that the knitting needle 1 is positioned below the gap formed between the two needle guard pieces 4 c.

As shown in FIG. 15, the needle protecting piece 4c is moved downward to allow the knitting needle 1 to pass through the gap formed between the two needle protecting pieces 4 c. The needle guard 4c continues downwards until the fabric 8 is pressed against the needle-off dial 2. This is to ensure that the fabric 8 is under the latch of the hosiery knitting needle 1 in preparation for successful stitch transfer.

In fig. 16, the needle guard 4c is moved radially outward, disengaging from the knitting needle 1.

In fig. 17, the transfer needles 4a, 4b are moved radially inwards until the tip of the knitting needle 1 is located in the transfer needle groove 43 formed by the transfer needles 4a, 4b, the transfer needle groove 43 being located between the body and the latch of the knitting needle 1.

In fig. 18, the needle guard 4c is moved radially inward so that the knitting needle 1 is between the gap formed between the two needle guards 4 c. At this stage, the position of the needle-guard 4c with respect to the position of the knitting needles 1 is radially more external than in the stage shown in figure 8, so as to avoid blocking the upward movement of the fabric 8 in the following stage.

In fig. 19, the dial 2 is moved upwards, pushing the fabric 8 upwards, and the fabric 8 will move upwards accordingly along the hosiery knitting needle 1.

In fig. 20, the fabric 8 has carried the latch of the knitting needle 1 upwards, so that the latch is closed and the opening of the knitting needle 1 is closed.

In fig. 21, the latch of the knitting needle 1 is caught on the outer side of the transfer needle 4a (the radially outer side centered on the axis of the footwear inverting tube 3), so that the cloth 8 can be smoothly transferred from the knitting needle 1 to the transfer portion 42 of the transfer needle 4 a.

In fig. 22, the transfer device is moved upwards, at which time the fabric 8 has been transferred to the knitting needles 1 and the lower side of the fabric 8 is dragged by the needle-guard 4c, so that the sock can move upwards.

In fig. 23, the needle-removing dial 2 is moved downwards.

In fig. 24, the sinker 201 is moved radially inwards, in cooperation with the take-off dial 2 and the knitting needles 1, ready to knit the next fabric.

Fig. 25-32 show the operation of the transfer slot tooth 6 a.

In fig. 25, the slit teeth 6a are mounted on the block 6e, and the slit teeth 6b are mounted on the block 6 d. On the tooth holder 6e, slit teeth 6a are fixed to the tooth holder 6e by a pressing plate 6c and a fixing plate 6 f. On the tooth holder 6f, slit teeth 6b are fixed to a tooth holder 6d via a pressing plate 6 c. The tooth holder 6e and the tooth holder 6f form a complete tooth holder of circular shape. During butt joint, the gear seat 6d is driven by the air cylinder to turn 180 degrees to the position below the gear seat 6e, butt joint is achieved, and therefore the seam teeth 6b also turn 180 degrees to be in butt joint with the seam teeth 6 a. After the butt joint, the air cylinder pushes the pressing plate 6c on the seam teeth 6a to press downwards, so that the loops of the upper and lower fabrics 8 (such as socks) are combined and butted.

As shown in fig. 25, in the hosiery knitting machine, the last loop of the fabric 8 has been transferred to the transfer needles 4a, 4b (fitted over the transfer needles 4a, 4 b), and then the

respective stitch teeth

6a, 6b are inserted into the transfer needle grooves 43 formed by the transfer needles 4a, 4b, and thus into the loops of the fabric 8, the hose overturning pipe 3 of the hosiery knitting machine (e.g., hosiery knitting machine) is positioned below the fabric 8, the lower end cylinder drives the push rod 10b to ascend, thereby driving the fabric 8 to ascend, and the loops of the fabric 8 are transferred to the

stitch teeth

6a, 6 b.

As shown in fig. 26, the last loop of fabric 8 has been looped over the

slit teeth

6a, 6b, moving the

slit teeth

6a, 6b and the transfer needles 4a, 4b upward so that the

slit teeth

6a, 6b and the transfer needles 4a, 4b disengage from the needle guard 4 c.

The needle guard 4c is withdrawn outwardly as shown in fig. 27.

As shown in fig. 28, the

slit teeth

6a, 6b are moved upward so that the

slit teeth

6a, 6b are disengaged from the transfer needles 4a, 4 b.

As shown in fig. 29, the transfer pins 4a, 4b and the needle guard 4c are removed in preparation for moving the toothholders 6e and 6d and for inverting the toothholders.

As shown in fig. 30, the tooth holder 6d is turned downward 180 degrees below the tooth holder 6e, and after the turning, the

tooth holders

6d and 6e are aligned, and the

slit teeth

6a and 6b are aligned. The inner side of the needle of the slit tooth 6b is engaged in the needle groove 6111 of the slit tooth 6 a.

As shown in fig. 31, the presser plate 6c of the block 6e is pushed downward to transfer the fabric on the slit teeth 6a to the slit teeth 6b, i.e., the loops of the fabric 8 from the upper block to the lower block. Of course, the coils can also be transferred to the upper tooth holder.

As shown in fig. 32, when the stitches of the fabric are tightly pressed together, the sewing of the toe can be started with the sewing needle 7b of the sewing machine.

The above-described embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. A method of transferring loops of fabric, comprising:

s1, enabling the hosiery knitting needle to be positioned below the gap formed between the two needle protection pieces;

s2, moving the needle protection pieces downwards to enable the hosiery knitting needles to penetrate through the gaps formed between the two needle protection pieces until the fabric on the hosiery knitting needles is pressed on the needle removal disc (2);

s3, moving the needle protection sheet outwards in the radial direction to separate from the sock knitting needle;

s4, moving a group of transfer needles radially inwards until the needle head of the knitting sock needle is positioned in a transfer needle groove (43) formed by two structurally symmetrical transfer needles, the transfer needle groove (43) is positioned between the main body and the latch of the knitting sock needle, wherein each transfer needle comprises: a transfer needle body (41); the transfer part (42), the transfer part (42) deviates from the head of the transfer needle main body (41) and extends to one side downwards from the axis of the transfer needle main body (41), the transfer part (42) is arc-shaped, and the transfer parts (42) of the two transfer needles form the transfer needle groove (43);

s5, moving the needle protection pieces radially inwards to enable the hosiery knitting needle to be between the gaps formed between the two needle protection pieces, moving the needle removal disc (2) upwards, pushing the fabric to move upwards, and enabling the fabric to correspondingly move upwards along the hosiery knitting needle;

s6, the latch of the knitting needle is lapped outside the transfer needle, so that the fabric loop can be transferred from the knitting needle to the transfer needle.

2. The method of transferring fabric loops according to claim 1, further comprising:

s7, inserting the slit teeth into a transfer needle groove formed by the group of transfer needles;

and S8, disengaging the stitch teeth from the transfer needle and the needle protection sheet.

3. The method of transferring fabric loops according to claim 2, further comprising:

s9, turning one half of the toothholder downwards by 180 degrees to the position below the other half of the toothholder, and aligning the seam teeth after turning;

and S10, pushing the pressing plate downwards to transfer the fabric on one half of the seam teeth to the other half of the seam teeth.

4. The method of transferring fabric loops of claim 1 wherein said needle guard comprises:

the needle guard sheet comprises a needle guard sheet main body (45), a needle guard sheet clamping part (46) extends downwards from the front end of the needle guard sheet main body (45), and a needle guard sheet inclined cutting part (47) is formed at the joint between the needle guard sheet main body (45) and the needle guard sheet clamping part (46).

5. The method of transferring a fabric loop of claim 2 wherein the slit teeth comprise:

the needle-shaped connector comprises an elongated body (61) and a clamping part (62), wherein the clamping part (62) extends out from the upper end of the elongated body (61), and a needle-shaped part groove (6111) is formed in the lower end of the elongated body (61).

6. The method of transferring fabric loops according to claim 5,

the outer side of the elongated body (61) has a sewing groove (613) through which a sewing needle passes,

the elongated body (61) includes a needle portion (611) at a lower end and a support portion (612) at an upper end, the support portion (612) is wider than the needle portion (611), and the engaging portion (62) extends from the support portion (612).