CN112458615B

CN112458615B - Bowknot net piece and weaving method thereof

Info

Publication number: CN112458615B
Application number: CN202011124409.6A
Authority: CN
Inventors: 宋莲芳; 彭德荣
Original assignee: Guangdong Yangfan Mesh Industry Co ltd
Current assignee: Guangdong Yangfan Mesh Industry Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2022-02-25
Anticipated expiration: 2040-10-20
Also published as: CN112458615A

Abstract

The invention discloses a bowknot net piece and a weaving method thereof, wherein the bowknot net piece comprises a net piece, in the net piece, a bowknot-shaped net knot is arranged at the net foot of the net piece, and the back of the bowknot-shaped net knot is positioned at the same side of the net piece; at the same net foot, under the separation effect of the butterfly-shaped net knot, two adjacent net wires positioned at the outer side of the butterfly-shaped net knot are not contacted. The bowknot net sheet is a new process net sheet between a knotted net and a knotless net, the back surface of the bowknot net sheet is smooth and has no bowknot, and the bowknot protrusion on the front surface of the bowknot net sheet is in a butterfly shape, and the bowknot net sheet has the characteristics of the knotless net and the knotted net.

Description

Bowknot net piece and weaving method thereof

Technical Field

The invention relates to the technical field of mesh weaving. In particular to a bowknot net sheet and a weaving method thereof.

Background

At present, meshes are divided into knotless meshes and knotted meshes in the industry according to whether net knots exist at net feet. The knotless net is light and beautiful and is mainly used for offshore fishing and aquaculture, and the knotless net has higher strength and is mainly suitable for deep sea culture fishing and sports nets.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to provide a bowknot net and a weaving method thereof, wherein the bowknot net is a new process net between a knotted net and a knotless net, the back surface of the bowknot net is smooth and has no knots, and the knots on the front surface of the bowknot net are raised in a butterfly shape, and the bowknot net has the characteristics of the knotless net and the knotted net.

In order to solve the technical problems, the invention provides the following technical scheme:

a bowknot net sheet comprises a net sheet, wherein a bowknot-shaped net knot is arranged at the net foot of the net sheet in the net sheet, and the back of the bowknot-shaped net knot is positioned at the same side of the net sheet; at the same net foot, under the separation effect of the butterfly-shaped net knot, two adjacent net wires positioned at the outer side of the butterfly-shaped net knot are not contacted. The butterfly-shaped net knot is smooth on the back and slightly convex on the front.

In the bowknot net piece, the bowknot-shaped net knot is formed by interweaving warp knitting chain tissues.

A method for knitting a bowknot net sheet, wherein a bowknot-shaped net knot on the bowknot net sheet adopts an L shape₁、L₂、L₃、L₄、L₅And L₆The six rows of guide bars pass through 4 rows of looping and 4 rows of weft insertion monocular double-set process row chains, wherein L₁、L₂、L₃、L₄The row guide bars being looped, L₃、L₄、L₅、L₆The guide bars being arranged with inserted weft inserts, L₃、L₄The row guide bar can be looped and used for weft insertion; l is₁、L₂、L₃、L₄、L₅And L₆The row guide bars are driven by the separate chain blocks respectively to move.

The above knitting method, L₅、L₆Weft inserted inlay yarn and L₁～L₄The looping is carried out synchronously.

In the weaving method, in the butterfly-shaped net knot, when a new coil is formed, the weft insertion is clamped between a next new coil and a new coil extension line, and then the weft insertion is turned, so that the weft insertion is inserted into the new coil in an S shape and is clasped with the next new coil. The new coil and the next new coil are two coils which are adjacent to each other in time.

The above knitting method, L₃And L₄Participating in the formation of the butterfly-shaped net knot when the row guide bar is looped; l is₃And L₄The row guide bar presses the looped extension line when being used as the weft insertion needle back wave-shaped yarn laying.

The above knitting method, L₁、L₂、L₃、L₄、L₅And L₆The technological chain arrangement of the guide bar is as follows:

L₁：2446，4224×4，2024，4224×4；

L₂：6442，4664×4，6864，4664×4；

L₃：4642，2444，2244×2，2242，4220，2444，2244×2，2242；

L₄：4246，6444，6644×2，6646，4668，6444，6644×2，6646；

L₅：6622，4422×4，4400，4422×4；

L₆：2266，4466×4，4488，4466×4。

the knitting method uses the back of the latch needle pointing to the front of the needle as the reference direction, and defines the guide bars of the guide needles as the Nth₁Guide bar, Nth₂Guide bar, Nth₃Guide bar, Nth₄Guide bar, Nth₅Guide bar and Nth₆The guide bar is fixed;and when the butterfly-shaped net knot is woven, the weft insertion guide bar is arranged behind the looping guide bar.

In the knitting method, the process chain sequence of the guide needle guide bar is N₁＝L₁，N₂＝L₂，N₃＝L₃，N₄＝L₄，N₅＝L₅，N₆＝L₆。

In the knitting method, the process chain sequence of the guide needle guide bar is N₁＝L₁，N₂＝L₂，N₃＝L₅，N₄＝L₆，N₅＝L₃，N₆＝L₄。

The technical scheme of the invention achieves the following beneficial technical effects:

1. the bowknot net sheet has the advantages of less net thread consumption, high strength, stable mesh structure and low water resistance, has strong fishery adaptability, and can be used in the fishing industry and the net cage aquaculture industry. When the net cage is used in the net cage aquaculture industry, the back of the butterfly-shaped net knot faces the inner side of the net cage, so that aquatic animals cultured in the net cage can be prevented from being damaged, and meanwhile, the strength of the net piece for the net cage can be ensured to be enough to resist the collision of the aquatic animals. The existing knotless net has low strength and is not suitable for breeding aquatic animals with better biological activity, the skin of the aquatic animals is easily damaged by the existing knotted net knots, and then the aquatic animals die.

2. The butterfly-shaped net knot has the advantages that the front surface of the butterfly-shaped net knot is slightly convex, so that the friction force can be enhanced, when the butterfly-shaped net knot is used in the industry of cleaning products, the friction force between the butterfly-shaped net piece and the surface of an object can be increased, the dirt-removing capacity is improved, for example, a bath ball made of the butterfly-shaped net piece can be used for not only beating soap, but also rubbing, and compared with the existing rubbing towel, the degree of abrasion to the skin is lower.

Drawings

FIG. 1a is a schematic structural view of a conventional knotless net;

FIG. 1b is a schematic view of the structure of FIG. 1a at the position of the knotless net foot;

FIG. 2a is a schematic view of a prior art knotted net;

FIG. 2b is a schematic view of the structure of FIG. 2a with the net foot;

FIG. 3a is a schematic view of a bow-tie mesh of the present invention;

FIG. 3b is a schematic view of the structure of the butterfly net in FIG. 2a at the net foot;

FIG. 4 warp knit chain organization chart;

FIG. 5 is a schematic representation of a mesh binding yarn;

FIG. 6 is a schematic diagram of a conventional knotless net;

FIG. 7 is a schematic diagram of a bowtie mesh of the present invention;

FIG. 8a is a partial artisan view of the L3 process chain of the present invention;

FIG. 8b is a partial artisan view of the L3 process chain of the present invention;

FIG. 8c is a partial artisan view of the L3 process chain of the present invention;

FIG. 8d is a partial artisan view of the L3 process chain of the present invention;

FIG. 9 shows a schematic view of a bowtie sheet yarn winding arrangement of the present invention.

The reference numbers in the figures denote: 1-bowknot netting; 2-butterfly shaped net knot.

Detailed Description

In the invention, the bowknot net sheet 1 is different from the prior knotless net and knotted net in that: as shown in fig. 1a and 1b, the intersection points of the net feet of the knotless net have no net knots and are formed by combining balanced rhombic warp knitting tissues and weft insertion grouping and weaving, the intersection points of the net feet of the knotted net have net knots, as shown in fig. 2a and 2b, the net knots protrude towards the periphery, each net knot is tightly fastened and connected with four net feet through tensioning, the net feet of the bowknot net sheet 1 are provided with butterfly-shaped net knots 2, and the back parts of the butterfly-shaped net knots 2 are positioned on the same side of the net sheet; at the same net foot, under the separation effect of the butterfly-shaped net knot 2, two adjacent net wires positioned at the outer side of the butterfly-shaped net knot 2 are not contacted. The butterfly-shaped net knot 2 is smooth on the back and slightly convex on the front. The bow-shaped net knot 2 is shaped like a butterfly, and as shown in fig. 3a and 3b, the net knot is large and formed by interweaving a plurality of warp knitted chain tissues (fig. 4).

Example 1

In the weaving method, the bowknot net sheet 1 is different from the existing knotless nets and knotted nets, and the difference causes the net knot shape and structure of the bowknot net sheet 2 to be larger than that of the existing knotted nets, namely the bowknot net sheet 1 has smooth back and slightly convex front of the bowknot net 2, so that the bowknot net sheet can be used in the occasions suitable for the knotless nets and the occasions suitable for the existing knotted nets, but the existing knotted nets are not suitable for the occasions requiring the net surface of the net sheet to be smooth, such as nets for net cage culture, scales of fishes are scratched and rubbed due to the existing knotted nets, the fishes are injured, and the problems that the strength is not large enough and the fishes are easily damaged due to the non-knotted nets are solved.

Knotless net weaving method

In general, the knotless net is woven by a process of 2 guide bars for loop formation and 4 guide bars for weft insertion, as shown in fig. 6, the specific process chain arrangement mode is as follows:

L₁：2446，4224×4，2024，4224×4；

L₂：6442，4664×4，6864，4664×4；

L₃：6644×10；

L₄：2244×10；

L₅：6622，4422×4，4400，4422×4；

L₆：2266，4466×4，4488，4466×4。

in a general warp-knitted knotless net, a yarn laying is realized by a guide bar swinging back and forth between latch needles and moving along a latch needle plane, wherein the guide bar swinging back and forth between the latch needles is driven by an eccentric link mechanism, and the movement along the latch needle plane is driven by a chain block on a knitting wheel. At this time, the tongue bed moves only up and down. However, in some net-knitting machines, in order to reduce the amplitude and time of the front-back swing of the needle bed of the guide needle, the latch needle moves up and down and also swings against the guide bar of the guide needle, which plays a certain role in buffering the tension of the yarn and reducing the breakage of the yarn.

As can be seen from FIG. 6, L₁And L₂The guide bars are moved in a loop, L₃And L₄The row guide bar makes a yarn laying motion with small needle moving amplitude, L₅And L₆Laying movement with large needle shifting amplitude of row guide bar, L₃～L₆Weft insertion quilt L₁～L₂The rows are locked and tightened to form knotless net tissue.

Method for knitting bowknot net sheet 1 in the invention

The butterfly-shaped net knot 2 in the bowknot net sheet 1 adopts L₁、L₂、L₃、L₄、L₅And L₆The six rows of guide bars pass through 4 rows of looping and 4 rows of weft insertion monocular double-set process row chains, wherein L₁、L₂、L₃、L₄The row guide bars being looped, L₃、L₄、L₅、L₆The guide bars being arranged with inserted weft inserts, L₃、L₄The row guide bar can be looped and used for weft insertion; l is₁、L₂、L₃、L₄、L₅And L₆The row guide bars are driven by the separate chain blocks respectively to move. Wherein L is₁、L₂、L₃、L₄、L₅And L₆The technological chain arrangement of the guide bar is as follows:

L₁：2446，4224×4，2024，4224×4；

L₂：6442，4664×4，6864，4664×4；

L₃：4642，2444，2244×2，2242，4220，2444，2244×2，2242；

L₄：4246，6444，6644×2，6646，4668，6444，6644×2，6646；

L₅：6622，4422×4，4400，4422×4；

L₆：2266，4466×4，4488，4466×4。

the weft yarns for weft insertion differ from the yarns for loop formation during the weaving of the mesh mainly by: the weft inserted weft yarn does not move transversely absolutely in front of the latch needle, so that the weft yarn cannot be hooked by the latch needle to form a loop, and only moves transversely on the back of the latch needle, so that the weft yarn is pressed by the extending line of the loop and tightly clasped with the loop, and the looped yarn must move transversely in front of the latch needle, and the yarn is hooked by the latch needle to form the loop.

For the knitting of a warp-knitted mesh structure, the simplest method is to lay each needle of two guide bars on each course with yarn, which ensures that the stitches are connected to each other without falling off, the wale forming is not interrupted, and the stitches in two adjacent courses at the turn-around stitch are not connected to each other, and the adjacent stitches in the same course are inclined in opposite directions, so that a rhomboid shape is formed with 2 stitches in the upper course inclined in opposite directions as both sides and the other 2 stitches in the lower course inclined in opposite directions as both sides. In this principle, if 1 yarn (as representative of the yarn on the other bar) is knitted on the adjacent needle, the other leg of the mesh is formed. When the yarn laying of the former guide bar is turned to the other needle, the latch needle yarn laying is exchanged according to the yarn, so that 2 coils are connected, and then the two coils respectively return to the original latch needle, namely, a warp flat structure is adopted, thus the number of the unconnected transverse lines of the longitudinal rows is increased, and a larger mesh effect is formed. Based on the above, fig. 7 is explained as follows:

for L undergoing looping₁Row guide bar and L₂Row guide bar, L in chain block₁(2446, 2024) and L₂(6442, 6864) forming a network of knots, as indicated by the circles in the figure; l in chain block₁(4224X 4) and L₂(4664 × 4) form net legs (diamond shaped sides) as shown by the semi-circle in the figure. If the chain blocks at the net knots or the net foot parts are repeated, the net knots or the net foot tissues can be correspondingly enlarged.

For L performing both looping and weft insertion₃Row guide bar and L₄Row guide bar, L in chain block₃(4642, 24XX, XX42, 4220, 24XX, XX42) and L₄(4246, 64XX, XX46, 4668, 64XX, XX46) in the formation of a loop, participating in the formation of a network knot tissue; l in chain block₃(XX44, 2244X 2, 22XX, XX44, 2244X 2, 22XX) and L₄(XX44，6644×2，66XX，XX44，6644×2，66XX) is used as the waved lapping yarn of the weft insertion needle back, the looped extending line is pressed, and the strength of the mesh tissue structure is increased.

For L performing weft insertion₅Row guide bar and L₆Row guide bar, L in chain block₅(6622, 4422X 4, 4400, 4422X 4) and L₆(2266, 4466X 4, 4488 and 4466X 4) are weft insertion and are simply used for back lapping.

L₅，L₆Inlay weft inlay and L₁～L₄The looping is performed synchronously. The weft insertion guide bar is directly arranged on the needle back without transversely moving before the latch needle, and the looping guide bar is used for laying yarns and looping after moving one needle before the latch needle, so that the weft insertion is clamped between a secondary new coil and an extension line which is about to form the new coil. When a new coil is formed, the weft insertion is clamped between the next new coil and the extension line of the new coil, then the weft insertion turns, and the weft insertion is inserted into the new coil like an S shape and is tightly embraced with the next new coil, so that the strength of the knitted mesh sheet is higher.

In the mesh weaving process, the movement of each row of guide bars is independent, but the movement of each row of guide bars is not isolated, but a plurality of rows of guide bars move simultaneously and are interlaced with each other to finally form the mesh tissue, as shown in fig. 9.

Wherein, fig. 6 and 7 are both art-recognized drawings used to represent the movement of the yarn in the industry: each row of small black points represents a vertical section of the latch needle, the position above the points is in front of the latch needle, the position below the points is behind the latch needle, and the transverse distance of the black points is the distance between the latch needles and is also equal to the height difference of adjacent process chain blocks. When the yarn winding device works, the latch needle is static, the yarn guide needle carries the yarn to perform yarn winding movement, and according to the relativity of the movement, the strong track of the yarn on the latch needle is drawn to be the artistic drawing shown in the drawing. The artistic conception drawing method of the warp knitting chain organization comprises the following steps: the yarns of the open chain are transversely moved in front of the latch needle, the needles are moved forward from left (right) to right (left), and the needles are moved forward from right (left) to left (right) to return to the original position to form 2 loops, for example, the chain block arrangement (02, 20) is repeatedly arranged. The yarns of the closed chain are required to respectively traverse 1 time before the latch needle and 1 time after the latch needle every time 1 loop is formed, traverse is performed from the front of the needle and then from the back of the needle to return to the original position, the yarns are also wound around the latch needle, and if the chain blocks are arranged to be (02, 02) repeatedly arranged.

According to the principle of the artistic conception drawing method of the warp knitting chain weave, in the weaving process of the bowknot net piece (1), the yarn is firstly moved to be needle-shaped clockwise before the fifth latch needle and after the fifth latch needle to form 1 closed loop 46; and then moved back and forth 1 time each from the front of the third latch needle to form 2 open loops 42 and 24. 464224 form 1 closed coil, 2 open coils as shown in fig. 8 a. Then the yarn carries out weft insertion movement, the first transverse row is firstly swung from the position of '4' to the front of the latch needle without transverse movement, and the yarn is swung back according to the original path; in the second course, the yarn traverses from the 4 position to the 2 position; in the third course, the yarn is swung to the front of the needle from the position of 2, and the needle is not moved and the yarn is swung back; in the fourth course, the yarn is shifted from the "2" position back to the "4" position. This was repeated 3 times and the chain blocks were arranged 4422 × 3 (i.e. 44, 2244 × 2, 22), as shown in fig. 8 b. Subsequently, the yarn is made to move in a loop according to the process chain 42, 4220, 24. The following judgment is made according to the looping characteristics: 42 (closed loop) 42 (open loop) 20 (closed loop) 24 (open loop), as shown in fig. 8c, the closed loop is a significant part of the bownet knot. Finally, the chain 44, 2244 × 2, 22 is also a weft insertion and laying movement, corresponding to 4422 × 3, the yarn is laid 3 times in a repeat, and then ends with a 42 chain open loop, as shown in fig. 8 d. L in each of FIGS. 8a, 8b, 8c, and 8d₃Process chain 4642, 2444, 2244 × 2, 2242, 4220, 2444, 2244 × 2, 2242 partial design, the complete design is shown as L in FIG. 7₃As shown. From L₁～L₆As can be seen from fig. 7, the process chain blocks of L1 and L2, L3 and L4, and L5 and L6 are symmetrical to each other, and the chain blocks are centered on "4" chain block, "0" to "8", "2" to "6", and "4" to "4". So L₃The draft of the design makes the position of the L4 axisymmetric₄Will be shown.

Compared with the common knotless net, the bowknot net sheet 1 of the invention has more L₃Row guide bar and L₄The looping part of the row guide bar, so the butterfly-shaped net knot 2 of the butterfly-shaped net piece 1 is obvious, and the butterfly-shaped net knot 2 is in a flat butterfly knot shape under the action of yarn looping tension and weft insertion elasticity.

The needle back of the latch needle points to the front of the needle as the reference direction, and the guide bars of the guide needles are respectively defined as the Nth₁Guide bar, Nth₂Guide bar, Nth₃Guide bar, Nth₄Guide bar, Nth₅Guide bar and Nth₆The guide bar is fixed. In the weaving of the bowtie net 1, the weft thread carried by the weft insertion bar is located between the cylinder formed by the looping bar and the stretch thread, considering that the weft insertion bar must be located behind the looping bar. Thus, the Nth₁Guide bar and Nth₂The guide bars must be arranged in loops L₁And L2 Process chain, N₃The guide bars and the Nth 4 guide bar are arranged into L₃And L₄Process chain, N₅Guide bar and Nth₆Arranging guide bars in L₅And L₆A process chain, wherein the L3, L4 process chain and the L5, L6 process chain are interchangeable. Thus, the Nth₁Guide bar, Nth₂Guide bar, Nth₃Guide bar, Nth₄Guide bar, Nth₅Guide bar and Nth₆The guide bars are arranged in the process chain sequence of (N)₁＝L₁，N₂＝L₂，N₃＝L₃，N₄＝L₄，N₅＝L₅，N₆＝L₆)。

Example 2

In this embodiment, the difference between the method for knitting the bow-tie mesh 1 and the method for knitting the bow-tie mesh 1 in embodiment 1 is: n th₁Guide bar, Nth₂Guide bar, Nth₃Guide bar, Nth₄Guide bar, Nth₅Guide bar and Nth₆The guide bars are arranged in the process chain sequence of (N)₁＝L₁，N₂＝L₂，N₃＝L₅，N₄＝L₆，N₅＝L₃，N₆＝L₄)。

The guide needle bar sequence in example 1 is better, because of the L-arrangement comparison₃，L₄The process chain is shared by weft insertion and looping and is arranged at the Nth₃Guide bar and Nth₄By approaching the guide bar to L₁Row guide bar and L₂The row guide bar is looped, the yarn tension is high, and the condition that mesh sheet needle skipping is closed due to insufficient yarn tension is greatly reduced.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. 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. And obvious variations or modifications are possible which remain within the scope of the appended claims.

Claims

1. The method for weaving the bowknot net piece is characterized in that in the bowknot net piece (1), a bowknot-shaped net knot (2) is arranged at the net foot of the bowknot net piece (1), and the back of the bowknot-shaped net knot (2) is positioned on the same side of the net piece; at the same net foot, under the separation action of the butterfly-shaped net knot (2), two adjacent net wires positioned at the outer side of the butterfly-shaped net knot (2) are not contacted; the bowknot net sheet (1) adopts L₁、L₂、L₃、L₄、L₅And L₆The weaving is carried out by six rows of guide bars; l is₁、L₂、L₃、L₄、L₅And L₆The row guide bars move under the drive of the independent chain blocks respectively; the needle back of the latch needle points to the front of the needle as the reference direction, and the guide bars of the guide needles are respectively defined as the Nth₁Guide bar, Nth₂Guide bar, Nth₃Guide bar, Nth₄Guide bar, Nth₅Guide bar and Nth₆The guide bar is fixed; the guide needle guide bar sequence is N₁＝L₁，N₂＝L₂，N₃＝L₃，N₄＝L₄，N₅＝L₅，N₆＝L₆；L₁、L₂、L₃、L₄、L₅And L₆The technological chain arrangement of the guide bar is as follows:

L₁：2446，4224×4，2024，4224×4；

L₂：6442，4664×4，6864，4664×4；

L₃：4642，2444，2244×2，2242，4220，2444，2244×2，2242；

L₄：4246，6444，6644×2，6646，4668，6444，6644×2，6646；

L₅：6622，4422×4，4400，4422×4；

L₆：2266，4466×4，4488，4466×4。

2. the method for weaving the bowknot net piece is characterized in that in the bowknot net piece (1), a bowknot-shaped net knot (2) is arranged at the net foot of the bowknot net piece (1), and the back of the bowknot-shaped net knot (2) is positioned on the same side of the net piece; at the same net foot, under the separation action of the butterfly-shaped net knot (2), two adjacent net wires positioned at the outer side of the butterfly-shaped net knot (2) are not contacted; the bowknot net sheet (1) adopts L₁、L₂、L₃、L₄、L₅And L₆The weaving is carried out by six rows of guide bars; l is₁、L₂、L₃、L₄、L₅And L₆The row guide bars move under the drive of the independent chain blocks respectively; the needle back of the latch needle points to the front of the needle as the reference direction, and the guide bars of the guide needles are respectively defined as the Nth₁Guide bar, Nth₂Guide bar, Nth₃Guide bar, Nth₄Guide bar, Nth₅Guide bar and Nth₆The guide bar is fixed; the guide needle guide bar sequence is N₁＝L₁，N₂＝L₂，N₃＝L₅，N₄＝L₆，N₅＝L₃，N₆＝L₄；L₁、L₂、L₃、L₄、L₅And L₆The technological chain arrangement of the guide bar is as follows:

L₁：2446，4224×4，2024，4224×4；

L₂：6442，4664×4，6864，4664×4；

L₃：4642，2444，2244×2，2242，4220，2444，2244×2，2242；

L₄：4246，6444，6644×2，6646，4668，6444，6644×2，6646；

L₅：6622，4422×4，4400，4422×4；

L₆：2266，4466×4，4488，4466×4。

3. a bowtie mesh sheet characterized in that the bowtie mesh sheet (1) is knitted by the method of knitting a bowtie mesh sheet according to claim 1 or 2.