KR101349296B1 - V-bed knitting machine for both sides terry - Google Patents

Abstract

The present invention relates to a double-sided terry flat knitting machine, wherein the first plane needle and the second plane needle are raised to hang a plane chamber for forming a plane structure, and the first terrier needle and the second terry needle are raised to A terry cell thread is formed to form a tissue, and in this state, the first and second terry needles are first lowered so that the terry thread is applied to the first and second plane needles so that the terry thread is caught. After the first plane needle and the second plane needle is lowered to form a plane tissue to form a loop for the terry tissue loops on both sides of the plane tissue.
Thus, the rise of the first plane needle and the second plane needle, the rise of the first terrier needle and the second terrier needle, the descent of the first terrier needle and the second terrier needle, the first plane needle and As the second plane dragon descends, plain tissue is generated and terry tissue is generated on both sides of the plain tissue, thereby forming terry tissue in the plain tissue by the flat knitting machine.

Description

V-bed knitting machine for both sides terry}

The present invention relates to a flat knitting machine for double-sided terry, and more particularly, a double-sided terry that can form terry tissue on one side of the plain tissue or on both sides of the plain tissue, and maximize the number of loops of terry to have a softer touch. It relates to a flat knitting machine.

The flat knitting machine belongs to the category of the flat knitting machine, and there are a manual, semi-automatic, and automatic machine. The needle is arranged in a straight line so that the body is long sideways. The main product is sweaters, which are produced by cutting off the nodes of each product. Since the machine operation is very handicraft, various knitting structures are possible and molding knitting is possible. Productivity, on the other hand, is far behind that of circular knitting machines. Home knitting machines and armor knitting machines are a type of flat knitting machine.

In the cylinder of the flat knitting machine, a pair of needle beds are inclined, and the head parts of the needle beds are positioned to be close to each other.

Needle grooves are formed in the upper part of the needle bed along its longitudinal direction, and the nose of the needle bed is held away from the nose because the needle's nose pulls the nose of the needle when the nose of the thread is pulled downward.

Needle beds are equipped with needles. The needle consists of a needle body seated in the needle groove of the needle bed and reciprocated along the needle bed, and a crochet needle formed at the top of the needle body to form a nose of a thread.

The conventional flat knitting machine described above, when a pair of needles are raised along the needle groove of the needle bed to form a nose to weave the fabric, when the needle is raised and lowered, the needle is hooked to the needle's nose needle, and in this state, the needle is lowered. When the crochet hook is pulled down the thread is moved. At this time, the threads of both sides of the crochet needle are in contact with the needle plate of the needle bed to form a nose shape.

This conventional flat knitting machine is a device that forms only a plain structure while forming two sets of needles. Therefore, with the conventional flat knitting machine, it is not possible to make a product in which terry tissue is formed on one surface of the plain tissue, or a product in which terry tissue is formed on both sides of the plain tissue.

An object of the present invention for solving the above problems is to provide a double-sided terry flat knitting machine to form a terry tissue on one side of the plain tissue or on both sides of the plain tissue.

Another object of the present invention is to provide a double-sided terry flat knitting machine for maximizing the number of loops of terry to have a softer touch.

Double-sided terry flat knitting machine of the present invention for achieving the above object, the frame; A first plane needle cylinder installed on one of the inclined surfaces on both sides of the upper portion of the frame and having a plurality of needle guide slots formed therein; A first plane needle inserted into a slot of the first plane needle cylinder and slidably moving along the slot to weave the plane chamber to form a plane structure; A second plane needle cylinder installed on the inclined surface of the other side of both inclined surfaces of the upper frame and having a plurality of needle guide slots formed therein; A second plane needle inserted into a slot of the second plane needle cylinder and slidably moving along the slot to weave the plane chamber to form a plane structure; A first terrier needle cylinder which is installed perpendicular to a frame below the first plane needle cylinder and has a plurality of needle guide slots formed therein; A first terry needle inserted into a slot of the first terry needle cylinder, the first terry needle forming a terry tissue on one surface of the plain tissue by weaving a terry yarn while sliding up and down along the slot; A second terrier needle cylinder installed perpendicular to the frame below the second plane needle cylinder and having a plurality of needle guide slots formed therein; It is inserted into the slot of the second terrier needle cylinder and slides up and down along this slot, weaving a terry yarn thread characterized in that it comprises a second terrier needle to form a terry tissue on the other surface of the plain tissue.

Another feature of the double-sided terry knitting machine of the present invention is that the first terry needle and the second terry needle, the center of the terry tissue formed on both sides of the plain tissue when the first terry needle and the second terry needle is raised A cutter is formed to cut the portion.

Another characteristic of the double-sided terry flat knitting machine of this invention is 44-57 weight% of crystalline polypropylene, 9-21 weight% of ethylene butyl acrylate polymer, and styrene-based hydrogenated block copolymer 7- around the frame. The polypropylene resin composition which consists of 25 weight% and 10 to 23 weight% of inorganic fillers is apply | coated.

The present invention as described above, the first plane needle and the second plane needle is raised to hang the plane chamber for forming a plane tissue, the first terrier needle and the second terrier needle is raised to form a terry tissue In this state, the first and second terrier needles are first lowered so that the terrier thread is applied to the first and second plane needles so that a loop for the terry tissue is generated. Afterwards, the first plane needle and the second plane needle are lowered to form a plane tissue so that the terry tissue loops are woven on both sides of the plane tissue. Thus, the rise of the first plane needle and the second plane needle, the rise of the first terrier needle and the second terrier needle, the descent of the first terrier needle and the second terrier needle, the first plane needle and As the second plane dragon descends, plain tissue is generated and terry tissue is generated on both sides of the plain tissue, thereby forming terry tissue in the plain tissue by the flat knitting machine.

In the first terry needle and the second terry needle of the present invention, a cutter is formed to cut a central portion of the terry tissue formed on both sides of the plain tissue when the first terry needle and the second terry needle are raised. Thus, when the first and second terry dragon needles are raised, the middle portion of the loop is cut while passing through the loop of the terry tissue woven to the plain tissue. Therefore, as one loop is divided into two, the number of terry tissues is doubled, so that a softer touch can be obtained.

Around the frame of the present invention, 44 to 57% by weight of crystalline polypropylene, 9 to 21% by weight of ethylene butylacrylate polymer, 7 to 25% by weight of styrene-based hydrogenated block copolymer, and 10 to 23% by weight of inorganic filler The polypropylene resin composition which consists of is apply | coated. The polypropylene resin composition is excellent in paint adhesion, flexural modulus, and Izod impact strength to prevent breakage of the frame when applied to the periphery of the frame and to prevent peeling of the paint coated on the frame.

1 is a schematic front view showing an initial state of the flat knitting machine for a double-sided terry of the present invention
FIG. 2 is a schematic front view showing a state where the first plane needle and the second plane needle are raised to hang the plane chamber; FIG.
Figure 3 is a schematic front view showing a state in which the first terrier needle and the second terrier needle raised the terry chamber;
Figure 4 is a schematic front view showing a state in which the first terrier needle and the second terrier needle pulled down the terrier room;
FIG. 5 is a schematic front view of the first plane needle and the second plane needle showing a state where the plane chamber is pulled down and pulled down; FIG.
Figure 6 is a schematic front view showing a state in which a cutter is formed on the first terry needle and the second terry needle.

Specific features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.

1 is a schematic front view showing an initial state of the double-sided terry flat knitting machine of the present invention, Figure 2 is a schematic front view showing a state in which the plane plane is raised by raising the first plane needle and the second plane needle, Figure 3 Is a schematic front view showing a state where the first terrier needle and the second terrier needle are raised to open the terrier chamber. 4 is a schematic front view showing the first terrier needle and the second terrier needle pulled down the terrier chamber, Figure 5 is the first plane needle and the second plane needle pulled down the plane chamber showing the state Schematic front view.

Such a double-sided terry flat knitting machine of the present invention, the frame 10, the first plane needle cylinder 20, the second plane needle cylinder 30, the first plane needle 40, the second plane needle (50), the first terrier needle cylinder (60), the second terrier needle cylinder (70), the first terrier needle (80), the second terrier needle (90), plane chamber (2), terrier room It consists of (3).

The frame 10 has a first inclined surface 11 and a second inclined surface 12 formed thereon, and components to be described later are installed.

The first plane needle cylinder 20 is provided on the first inclined surface 11 on one side of both inclined surfaces of the upper portion of the frame 10, and a plurality of needle guide slots are formed.

The first plane needle 40 is inserted into a slot of the first plane needle cylinder 20 and slides the plane chamber 2 in an inclined manner along the slot to form a plane structure 4.

The second plane needle cylinder 30 is provided on the second inclined surface on the other side of both inclined surfaces of the upper portion of the frame 10 and has a plurality of needle guide slots.

The second plane needle (50) is inserted into a slot of the second plane needle cylinder (30) and slides inclined along this slot to weave the plane chamber (2) to form a plane structure (4).

The first terrier needle cylinder 60 is installed perpendicular to the frame 10 under the first plane needle cylinder 20, and a plurality of needle guide slots are formed.

The first terry needle 80 is inserted into a slot of the first terry needle cylinder 60 and is slid up and down along this slot to weave the terry thread 3 on one surface of the plain tissue 4. The terry tissue 5 is formed.

The second terrier needle cylinder 70 is installed perpendicular to the frame 10 below the second plane needle cylinder 30 and has a plurality of needle guide slots.

The second terrier needle 90 is inserted into the slot of the second terrier needle cylinder 70 and is slid up and down along the slot to weave the terryroom thread 3 on the other side of the plain tissue 4. The terry tissue 5 is formed.

The flat knitting machine for double-sided terry of this invention of such a structure is operated as follows.

First, as shown in FIG. 1, in the initial state in which the first plane needle 40 and the second plane needle 50 are lowered below the reference line 1, as shown in FIG. 2. The needle 40 and the second plane needle 50 are formed along the first inclined plane 11 and the second inclined plane 12 by the first plane needle cylinder 20 and the second plane needle cylinder 30. Is raised. When the first plane needle 40 and the second plane needle 50 are raised, the plane chamber 2 is formed to form the plane tissue 4.

Next, as shown in FIG. 3, the first terrier needle 80 and the second terrier needle 90 are guided to the first terrier needle cylinder 60 and the second terrier needle cylinder 70 to ascend. do. When the first terry needle 80 and the second terry needle 90 are raised, the terry room 3 is formed to form the terry tissue 5.

In this state, as shown in FIG. 4, the first terrier needle 80 and the second terrier needle 90 descend first, and thus the first plane needle 40 and the second plane needle ( A loop for terry tissue 5 is created by placing the terry chamber 3 in 50).

After the first terrier needle 80 and the second terrier needle 90 are lowered, the first plane needle 40 and the second plane needle 50 are lowered as shown in FIG. Weaving the chamber (2) to form a plain tissue (4), wherein the terry tissue (5) is formed on both sides of the plane tissue (4) while the plain tissue (4) is woven together with a loop for the terry tissue (5) already formed do.

Therefore, the first plane needle 40 and the second plane needle 50 is raised, the first terry needle 80 and the second terry needle 90, the first terry needle 80 And the lowering of the second terrier needle 90, the lowering of the first plain needle 40 and the second plain needle 50, whereby the plain tissue 4 is generated and terry on both sides of the plain tissue 4. Since the tissue 5 is produced, the terry tissue 5 can be formed in the plain tissue 4 by the flat knitting machine.

FIG. 6 is a schematic front view illustrating another embodiment of the first terrier needle 80 and the second terrier needle 90. The first terrier needle 80 and the second terrier needle 90 may be formed of a first terrier needle 80 and a second terrier needle 90. Cutters 41 and 51 are formed to cut the central portion of the terry tissue 5 formed on both sides of the plain tissue 4 when the first terry needle 80 and the second terry needle 90 are raised. .

Accordingly, the cutters 41 and 51 pass through the loop of the terry tissue 5 which is woven to the plain tissue 4 when the first terry needle 80 and the second terry needle 90 are raised. Cut the middle part. Therefore, the number of terry tissues (5) is doubled as one loop is divided, so that the terry tissue (5) formed on both sides of the plain tissue (4) can be subdivided to have a softer touch.

On the other hand, around the frame 10 of the present invention, 44 to 57% by weight of crystalline polypropylene, 9 to 21% by weight of ethylene butyl acrylate polymer, 7 to 25% by weight of styrene-based hydrogenated block copolymer, and inorganic filler Polypropylene resin composition consisting of 10 to 23% by weight is applied.

Here, the crystalline polypropylene includes at least one selected from a crystalline polypropylene homopolymer and a propylene-alpha olefin crystalline copolymer containing C2 to C20 (exclusive of C3) alpha olefins, and the crystalline polypropylene The melt flow index (230 DEG C, load of 2.16 kg) is 20 to 60 g / 10 min, and the isotactic peptid fraction measured by 13 C-NMR (nuclear magnetic resonance spectrum) is 0.80 to 0.99.

Also, the content of butyl acrylate in the ethylene butyl acrylate polymer is 20 to 40% by weight and the melt index (190 ° C, 2.16 kg load) is 20 to 200 g / 10 min.

In the styrene-based hydrogenated block copolymer, the styrene content is 18% by weight or more. The styrene-based hydrogenated block copolymer is a styrene-ethylene-butene-styrene block copolymer (SEBS), a styrene-ethylene-propylene-styrene block copolymer SEPS), styrene-butadiene-butylene-styrene block copolymer, styrene-ethylene-isoprene-styrene block copolymer and acrylonitrile-butylene-styrene block copolymer.

The polypropylene resin composition will be described in detail as follows.

First, the polypropylene resin composition may include a crystalline polypropylene, an ethylene butyl acrylate polymer, a styrene-based hydrogenated block copolymer and an inorganic filler as described above.

The crystalline polypropylene may include at least one selected from a crystalline polypropylene homopolymer and a propylene-alpha-olefin crystalline copolymer comprising C2 to C20 (excluding C3) alpha-olefin monomers.

Specific examples of the alpha-olefin monomers may be ethylene, 1-butene, 1-pentene, 1-hexene, 4-methylpentene, 1-heptene, 1-octene and 1-decene and preferably ethylene. The propylene-alpha olefin crystalline copolymer may be a block copolymer or a random copolymer, but is not limited thereto.

The content of the polymerization unit of propylene in the propylene-alpha-olefin crystalline copolymer is not particularly limited, but is preferably 50 wt% or more in the copolymer.

The crystalline polypropylene is not particularly limited in terms of stereoregularity, but any crystalline polypropylene that can achieve the object of the present invention can be used without limitation, and more specifically, ¹³ C-NMR (nuclear magnetic resonance spectrum) The isotactic peptad fraction may be 0.80 to 0.99, preferably 0.85 to 0.99.

The melt flow index (MFI, 230 ° C, 2.16 kg load) of the crystalline polypropylene may be 20 to 60 g / 10 min, preferably 20 to 50 g / 10 min.

The crystalline polypropylene may be contained in an amount of 44 to 57% by weight based on the resin composition. If the content of the crystalline polypropylene is less than 44% by weight, the coating adhesion may be deteriorated. If the content of the crystalline polypropylene is more than 57% by weight, the flexural modulus and the coating adhesion may be lowered.

The ethylene butyl acrylate polymer will be described as follows.

The butyl acrylate in the ethylene butyl acrylate polymer may be contained in an amount of 20 to 40% by weight, preferably 25 to 40% by weight, based on the weight of the polymerized units.

The ethylene butyl acrylate polymer may be contained in an amount of 9 to 21% by weight based on the polypropylene resin composition. If the content of the ethylene butyl acrylate polymer is less than 9% by weight, the coating adhesion is poor, and if the content exceeds 21% by weight, the flexural modulus may be significantly reduced.

The melt index (190 ° C, 2.16 kg load) of the ethylene butyl acrylate copolymer may be 5 to 250 g / 10 min, preferably 10 to 200 g / 10 min.

The styrene-based hydrogenated block copolymer can further improve the paint adhesion and impact resistance of the polypropylene resin composition.

The styrene-based hydrogenated block copolymer may be a styrene-ethylene-butene-styrene block copolymer (SEBS), a styrene-ethylene-propylene-styrene block copolymer (SEPS), a styrene-butadiene- Ethylene-butene-styrene block copolymer (SEBS) and styrene-ethylene-butylene-styrene block copolymer, ethylene-isoprene-styrene block copolymer and acrylonitrile- -Propylene-styrene block copolymer (SEPS).

The styrene-based hydrogenated block copolymer may be included in the polypropylene resin composition 7 to 25% by weight, preferably 10 to 18% by weight. When the content of the styrene-based hydrogenated block copolymer is less than 7% by weight, paint adhesion is lowered, and when it exceeds 25% by weight, mechanical properties such as rigidity and paint adhesion may be lowered, which is not preferable.

The inorganic filler may be used to reinforce the rigidity of the polypropylene resin composition, and the inorganic filler may be at least one selected from the group consisting of talc, barium sulfate, and calcium carbonate, preferably talc.

The particle size of the talc can be determined from the grain size of 50% by weight accumulated from the particle cumulative distribution curve measured according to the laser diffraction method, and the average particle size can be 10 탆 or less, preferably 0.5 to 8 탆. If the particle diameter of the talc is out of the above range, the flexural modulus may be lowered, which is not preferable.

The talc may contain various organic titanate-based coupling agents, organic silane coupling agents, unsaturated carboxylic acids, or anhydrides thereof in order to improve the adhesiveness or dispersibility with the polymer. Grafted polyolefins, fatty acids, fatty acid metal salts, fatty acid esters, and the like.

The inorganic filler may be contained in an amount of 10 to 23% by weight, preferably 10 to 21% by weight, based on the polypropylene resin composition. If the content of the inorganic filler is less than 10% by weight, the flexural modulus may be insufficient or the coating adhesion may be deteriorated. If the content of the inorganic filler is more than 23% by weight, the impact resistance may be deteriorated.

The polypropylene resin composition according to the present invention may further comprise a rubber component in order to further improve the paintability or to reinforce the low-temperature impact resistance. The rubber component may further comprise an ethylene-alpha-olefin copolymer or an ethylene-alpha-olefin elastomer rubber, and the alpha-olefin may be a C2 to C20 alpha-olefin, Ethylene-1-butene copolymer.

The polypropylene resin composition of the present invention is excellent in coating adhesion, flexural modulus, and Izod impact strength without applying a primer during coating, thereby preventing breakage of the frame 10 when applied to the frame 10 and Prevents paint from peeling off.

1: reference line 2: plane chamber
3: Terry room 4: Plain organization
5: terry tissue 10: frame
11: first inclined plane 12: second inclined plane
20: needle cylinder for the first plane 30: needle cylinder for the second plane
40: first plane needle 50: second plane needle
60: first terrier needle cylinder 70: second terrier needle cylinder
80: first terrier needle 90: second terrier needle

Claims (3)

A frame 10;
A first plane needle cylinder 20 installed on one of the inclined surfaces on both sides of the upper portion of the frame 10 and having a plurality of needle guide slots formed therein;
A first plane needle (40) inserted into a slot of the first plane needle cylinder (20) and woven with a plane chamber (2) to form a plane structure (4) while being slidably inclined along the slot;
A second plane needle cylinder (30) installed on the inclined surface of the other side of both inclined surfaces of the upper portion of the frame (10) and having a plurality of needle guide slots formed therein;
A second plane needle (50) inserted into a slot of the second plane needle cylinder (30) and weaving the plane chamber (2) to form a plane structure (4) while being slidably inclined along the slot;
A first terrier needle cylinder 60 installed perpendicular to the frame 10 below the first plane needle cylinder 20 and having a plurality of needle guide slots formed therein;
The first terry needle inserted into the slot of the needle cylinder (60) and slides up and down along this slot, weaving the terry room (3) to form a terry tissue (5) on one surface of the plain tissue (4) Terry needle 80;
A second terrier needle cylinder 70 installed perpendicular to the frame 10 below the second plane needle cylinder 30 and having a plurality of needle guide slots formed therein;
The second terry needle is inserted into the slot of the needle cylinder (70) and slides up and down along this slot to weave the terry room (3) to form a terry tissue (5) on the other surface of the plain tissue (4) Terry needles (90); double sided terry flat knitting machine comprising a.
The method according to claim 1,
In the first terrier needle 80 and the second terrier needle 90,
Cutters 41 and 51 are formed to cut the central portion of the terry tissue 5 formed on both sides of the plain tissue 4 when the first terry needle 80 and the second terry needle 90 are raised. Double-sided terry flat knitting machine characterized in that there is.
The circumference of the frame 10 according to claim 1,
Polypropylene resin composition comprising 44 to 57% by weight of crystalline polypropylene, 9 to 21% by weight of ethylene butylacrylate polymer, 7 to 25% by weight of styrene-based hydrogenated block copolymer, and 10 to 23% by weight of inorganic filler Double-sided terry flat knitting machine, characterized in that the coating.

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